C When the two ends of clamp C are locked by locking piece B, at the inner edge of the joint A, the locking force on rubber ring D is relatively weak, that is, a dead point occurs. The sealing is not enough.
The purpose of this utility model is to provide a stainless steel clamp type pipe fitting connection device with better sealing performance.
The purpose of this utility model is to realize the stainless steel clamp type pipe fitting connection device in this way. It is composed of a rubber sleeve, a clamp, a perforated rolling shaft, a screw hole rolling shaft and a bolt. The characteristic is that the clamp is When unfolded, it is a stainless steel belt with elongated holes at both ends, edges and corners on both sides, and is wrapped around the outer wall of the rubber sleeve, while its two ends are wound outwards respectively to form The ear ring, the screw hole rolling shaft and the perforated rolling shaft penetrate into the ear ring respectively, and the bolt is screwed into the screw hole of the screw hole rolling shaft through the perforated rolling shaft to tighten the clamp on the rubber sleeve, and the edge of the clamp is wrapped The two sides of the rubber sleeve cover the screw holes and the two ends of the perforated rolling shaft.
In the above design, when each end of the two pipe fittings is inserted into the rubber sleeve and kept on the same axis, and the bolt is tightened, the two pipe fittings can be connected by the clamp, and the screw hole rolling shaft has the function of a nut. When the bolts are tightened with the perforated rolling shaft, the movement angle can be automatically adjusted within the ear roll formed by the clamp, which can eliminate the so-called "dead corners" to a minimum, thus achieving better sealing.
The following will be further explained through the drawings and examples.
Figure 1 is a schematic diagram of the tightening of the existing clamp-type pipe fitting connection device; Figure 2 is a schematic diagram of the combined structure of the utility model; Figure 3 is a schematic diagram of the structure of the utility model clamp when it is half-expanded; Figure 4 is a utility model rubber sleeve Structural schematic diagram; Figure 5 is a schematic structural diagram of the threaded rolling shaft of the present utility model; Figure 6 is a side view of Figure 5; Figure 7 is a schematic structural diagram of the perforated rolling shaft of the present utility model; Figure 8 is a side view of Figure 7.
As shown in Figures 2 and 3, the utility model consists of a rubber sleeve 1, a clamp 2, a perforated rolling shaft 3, a screwed rolling shaft 4 and a bolt 5. The characteristic is that the clamp 2 is open type When unfolded, it is a stainless steel belt with elongated holes 6 at both ends, wrapping edges 7 and corners 8 on both sides, and is wrapped around the outer wall of the rubber sleeve 1, while its two ends are respectively wound outwards. And constitute the ear rings 9, 9', the screw hole rolling shaft 4 and the perforated rolling shaft 3 penetrate into the ear rings 9, 9 respectively, and the bolt 5 is screwed into the screw hole 11 of the screw hole rolling shaft 3 through the hole 10 of the perforated rolling shaft 3. The clamp 2 is tightly clamped on the rubber sleeve 1. The edges 7 of the clamp 2 cover both sides of the rubber sleeve 1. The corners 8 cover the screw holes and both ends of the perforated rolling shafts 4 and 3. Among them, the clamp 2 The inner edge of the hoop 2 is provided with a lining plate 12, and the lining plate 12 is provided with a pressure rib 13. In order to tighten the rubber sleeve 1 more closely and with better force, it is ensured that the so-called "dead corners" are eliminated.
As shown in Figure 4, there are two positioning tables 14 connecting the end faces of the pipe fittings located in the center of the inner wall of the rubber sleeve 1. The positioning tables 14 are provided with double-layer water sealing lines 15 on the upper and lower sides.
As shown in Figures 5 to 8, the screw hole rolling shaft 4 is provided with two screw holes 11, the perforated rolling shaft 4 is provided with two through holes 10, and the clamp 2 is locked with bolts 5 respectively. The screw holes and perforated rolling shafts 4 and 3 are provided with longitudinal through holes 16 to reduce weight.
As can be seen from the above, the utility model not only has better sealing performance, but also is light in weight and easy to disassemble and assemble. It can not only be used for the connection of cast iron pipes or other pipe fittings, including straight pipes, elbows, tees and other pipe fittings. It can be used in all kinds of buildings, has greater versatility and greater earthquake resistance, and is suitable for various buildings.
Claim 1. A stainless steel clamp-type pipe fitting connection device, which is composed of a rubber sleeve, a clamp, a perforated rolling shaft, a screw-hole rolling shaft and bolts. The characteristic is that when the clamp is unfolded, it is: A stainless steel belt with elongated holes at both ends, edges and corners on both sides, and wrapped around the outer wall of the rubber sleeve, while its two ends are respectively wound outward to form ear loops and screw holes. The rolling shaft and the perforated rolling shaft are respectively inserted into the ear ring. The bolt is screwed into the screw hole of the rolling shaft through the perforated rolling shaft to tighten the clamp on the rubber sleeve. The edges of the clamp cover both sides of the rubber sleeve. , the corners cover the screw holes and both ends of the perforated rolling shaft.
2. The stainless steel clamp pipe fittings connecting device as claimed in claim 1, wherein the inner edge of the clamp is provided with a lining plate, and the lining plate is provided with pressure ribs.
3. The stainless steel clamp pipe fittings connecting device according to claim 2, characterized in that there are two positioning tables connecting the ends of the pipe fittings in the center of the inner wall of the rubber sleeve, and there are two positioning tables on the upper and lower sides of the positioning tables. Double layer water seal.
4. The stainless steel clamp pipe fittings connection device according to claim 3, wherein the screw hole and rolling hole shaft is provided with two screw holes, and the perforated rolling shaft is provided with two through holes, and are locked with bolts respectively. Tight clamp.
Patent summary The utility model relates to a pipe fitting connector. Solve the problem of better sealing. The clamp is a stainless steel belt when unfolded in an open manner. Its two ends are provided with long holes, and both sides are provided with wrapping edges and corners. It is wrapped around the outer wall of the rubber sleeve, and its two ends are rolled outwards respectively. It goes around and forms an ear ring. The screw hole rolling shaft and the perforated rolling shaft penetrate into the ear ring respectively. The bolt is screwed into the screw hole of the screw hole rolling shaft through the perforated rolling shaft to tighten the clamp on the rubber sleeve for pipe fitting connection. .