Pipe coupling clamp

Abstract

The application relates to the field of pipeline connection, in particular to a clamp for pipeline connection, which comprises a clamp belt, a bolt and a shell, the shell is fixedly connected with one end of the clamp belt, the other end of the clamp belt is inserted into the shell and is slidably connected with the shell, the bolt is located in the shell, the clamp belt is provided with a toothed thread, the toothed thread of the clamp belt is engaged with the thread of the bolt, the clamp belt is provided with a sliding positioning part, the sliding positioning part is slidably connected with the clamp belt, the sliding positioning part comprises an elastic sheet and a positioning sheet, the elastic sheet is located in the annular clamp belt, both ends of the elastic sheet are slidably connected with the clamp belt, the positioning sheet is fixedly connected with the elastic sheet, the positioning sheet is used for being inserted into a pipeline, the positioning sheet comprises a connecting sheet and an insertion sheet, the connecting sheet is fixedly connected with the elastic sheet, two insertion sheets are perpendicularly and fixedly connected with the connecting sheet, and the clamp for pipeline connection has the effect of improving the installation efficiency when the clamp for pipeline is fixed.

Description

Technical Field

[0001] This application relates to the field of pipe connections, and more particularly to a clamp for pipe connections. Background Technology

[0002] Currently, hose clamps, also known as hose clamps, are commonly used to secure connections between flexible hoses and rigid pipes, joints, or components, preventing leaks of liquid or gas while also withstanding the pressure of the piping system. Hoses are frequently used in pipeline systems such as oil lines, water lines, and air conditioning lines. They are commonly used to tighten joints, offering good performance, high sealing, and easy installation.

[0003] Most existing pipe clamps consist of a clamp band, bolts, and a housing. The housing is fixed to one end of the clamp band, the bolt is rotatably connected inside the housing, and the other end of the clamp band is inserted into the housing, with the inserted end of the clamp band positioned between the bolt and the other end of the clamp band. The clamp band has teeth that mate with the bolt threads. When using the clamp band, first, move the clamp band to fit over the outside of the pipe. Then, connect the pipe to the connection point, and rotate the bolt inside the housing. The bolt threads drive the teeth of the clamp band. In this process, the rotational motion of the bolt threads is converted into a linear tightening motion of the clamp band, tightening it and thus securing the object to be connected or fixed, achieving functions such as clamping and sealing.

[0004] The existing technical solutions mentioned above have the following drawbacks: the clamps are difficult to fix to the hose during the installation stage, and external force is required to support and fix the clamps in position before tightening can be carried out, resulting in low installation efficiency when fixing pipes with clamps. Utility Model Content

[0005] This application provides a pipe connection clamp to improve the installation efficiency when fixing pipes with clamps.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution:

[0007] A pipe connection clamp includes a clamp band, a bolt, and a housing. The housing is fixedly connected to one end of the clamp band, and the other end of the clamp band is inserted into the housing and slidably connected to the housing. The bolt is located inside the housing. The clamp band has teeth that mesh with the threads of the bolt. The clamp band has a sliding positioning part that is slidably connected to the clamp band and is used to pre-fix the clamp to the pipe.

[0008] The sliding positioning part includes an elastic plate and a positioning plate. The elastic plate is located inside the annular clamp band, and both ends of the elastic plate are slidably connected to the clamp band. The positioning plate is fixedly connected to the elastic plate. The positioning plate is used to insert into the pipe. The positioning plate includes a connecting plate and an insertion plate. The connecting plate is fixedly connected to the elastic plate. There are two insertion plates. Both insertion plates are perpendicular to the connecting plate and fixedly connected. An insertion plate is provided on each of the two perpendicular side walls of the elastic plate of the connecting plate. The connecting plate is used to withstand the force that pushes the insertion plate into the pipe.

[0009] Furthermore, the end of the insert piece away from the connecting piece is provided with a pointed tip, which occupies half of the total length of the insert piece.

[0010] Furthermore, the tip of the tip is configured as an arc shape.

[0011] Furthermore, the elastic sheet is also provided with a pipe end positioning device, which includes an mounting plate, an inclined plate, and an end plate. The mounting plate is fixedly connected to the elastic sheet, the inclined plate is arranged parallel to the elastic sheet and fixedly connected to the mounting plate, and the end plate is arranged on the side of the mounting plate away from the elastic sheet. The end plate is used to abut against the end side wall of the pipe.

[0012] Furthermore, an arc-shaped reinforcing rib is provided between the inclined plate and the mounting plate, and the two ends of the reinforcing rib are fixedly connected to the inclined plate and the mounting plate respectively.

[0013] Furthermore, the inclined plate and the mounting plate form an angle of 135°-145°.

[0014] Furthermore, the insert piece and the connecting piece form an angle between 80° and 85°.

[0015] Furthermore, the clamp band is also provided with a fixing and positioning part, which includes a fixing plate, a pressure plate and an inserting plate. The fixing plate is fixedly connected to the pressure plate and the clamp band respectively. There are two inserting plates, and both inserting plates are fixedly connected to the pressure plate.

[0016] Furthermore, the end of the inserting piece away from the pressure plate is provided with a pointed tip.

[0017] In summary, this application has the following technical effects:

[0018] 1. By setting up sliding positioning parts and fixed positioning parts, when using clamps, the clamps are first pre-fixed to the pipes using the sliding positioning parts and fixed positioning parts. Then, the pipes are placed on the objects to be connected, and the bolts are turned to make the clamps gradually tighten. Since the clamps have been pre-fixed, it is no longer necessary to support the clamps when tightening them, thus improving the installation efficiency when fixing pipes with clamps.

[0019] 2. By setting up a pipe end positioning device, the end piece abuts against the side wall of the pipe end to determine the position of the clamp when it is fitted into the pipe. This allows for quick and accurate determination of the clamp's position on the pipe, preventing the clamp from shifting during pre-fixing and ensuring proper fixation when the pipe is connected to the object to be connected.

[0020] 3. By setting the tip of the insert to be arc-shaped, it can ensure that the insert can be inserted into the side wall of the pipe with less resistance, while avoiding scratches to the operator caused by an overly sharp tip, as well as unnecessary scratches to the outer wall of the pipe during the clamping process. At the same time, the arc-shaped tip is easier to preserve than a pure sharp tip, and avoids damage to the tip due to collisions during transportation. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of a pipe connection clamp according to this application;

[0022] Figure 2 This is a structural schematic diagram of the pipe connection clamp from another angle in this application;

[0023] Figure 3 This is a schematic diagram of the sliding positioning part of this application;

[0024] Figure 4 This is a structural schematic diagram of the fixing and positioning part of this application.

[0025] In the diagram, 1. Clamping band; 2. Bolt; 3. Housing; 4. Sliding positioning part; 41. Elastic plate; 411. Waist-shaped groove; 42. Positioning plate; 421. Connecting plate; 422. Insertion plate; 4221. Tip; 5. Pipe end positioning device; 51. Mounting plate; 52. Inclined plate; 53. End plate; 6. Reinforcing rib; 7. Fixed positioning part; 71. Fixing plate; 72. Pressure bearing plate; 73. Insertion plate. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 2 This embodiment provides a pipe connection clamp, including a clamp band 1, a bolt 2, and a housing 3. The housing 3 is fixedly connected to one end of the clamp band 1, and the other end of the clamp band 1 is inserted into the housing 3 and slidably connected to the housing 3. The bolt 2 is located inside the housing 3. The clamp band 1 is provided with teeth, and the teeth of the clamp band 1 engage with the threads of the bolt 2. The clamp band 1 is provided with a sliding positioning part 4 and a fixed positioning part 7. The sliding positioning part 4 is slidably connected to the clamp band 1, and the fixed positioning part 7 is fixedly connected to the clamp band 1. Both the sliding positioning part 4 and the fixed positioning part 7 are used to pre-fix the clamp to the pipe.

[0028] Reference Figure 1 and Figure 2 The sliding positioning part 4 includes an elastic piece 41 and a positioning piece 42. The elastic piece 41 is located inside the annular clamp band 1. The elastic piece 41 has a waist-shaped groove 411. Both ends of the elastic piece 41 are slidably connected to the clamp band 1. The positioning piece 42 is fixedly connected to the elastic piece 41 and is used to insert into the pipe. The elastic piece 41 is also provided with a pipe end positioning device 5, which is used to determine the position of the clamp when it is inserted into the pipe.

[0029] Reference Figure 1 and Figure 2 The positioning piece 42 includes a connecting piece 421 and an insertion piece 422. The connecting piece 421 is fixedly connected to the elastic piece 41. Two insertion pieces 422 are provided, each perpendicular to and fixedly connected to the connecting piece 421. One insertion piece 422 is provided on each of the two side walls perpendicular to the elastic piece 41 of the connecting piece 421. The connecting piece 421 is used to withstand the force that pushes the insertion piece 422 into the pipe. The end of the insertion piece 422 away from the connecting piece 421 is provided with a tip 4221, which occupies half of the total length of the insertion piece 422. The tip of the tip 4221 is rounded. In this embodiment, the connecting piece 421 is preferably 10mm long. The insertion piece 422 is preferably 5.87 mm long and 3.5 mm wide, and the tip 4221 is preferably 2.87 mm long. The tip 4221 is an arc shape with a radius of R=0.5 mm. The insertion piece 422 and the connecting piece 421 form an angle between 80° and 85°. The angle between the insertion piece 422 and the connecting piece 421 is preferably 85°. The angle between the insertion piece 422 and the connecting piece 421 causes the insertion piece 422 to deflect when it encounters resistance during insertion, making the angle between the insertion piece 422 and the connecting piece 421 gradually smaller. This makes it difficult to pull the insertion piece 422 out of the side wall of the pipe.

[0030] Reference Figure 2 and Figure 3 The pipe end positioning device 5 includes a mounting plate 51, an inclined plate 52, and an end plate 53. The mounting plate 51 is fixedly connected to the elastic plate 41. The inclined plate 52 is arranged parallel to the elastic plate 41 and fixedly connected to the mounting plate 51. The end plate 53 is located on the side of the mounting plate 51 away from the elastic plate 41 and is used to abut against the end side wall of the pipe. An arc-shaped reinforcing rib 6 is provided between the inclined plate 52 and the mounting plate 51. The two ends of the reinforcing rib 6 are fixedly connected to the inclined plate 52 and the mounting plate 51, respectively. The inclined plate 52 and the mounting plate 51 form an angle of 135°-145°.

[0031] Reference Figure 2 and Figure 4The fixed positioning part 7 includes a fixing plate 71, a pressure bearing plate 72, and an inserting plate 73. The fixing plate 71 is fixedly connected to the pressure bearing plate 72 and the clamping band 1 respectively. There are two inserting plates 73, and both inserting plates 73 are fixedly connected to the pressure bearing plate 72. The end of the inserting plate 73 away from the pressure bearing plate 72 is provided with a tip 4221. The included angle between the inserting plate 73 and the pressure bearing plate 72 is 80°-85°. The included angle between the inserting plate 73 and the pressure bearing plate 72 is preferably 85°. The included angle between the inserting plate 73 and the pressure bearing plate 72 causes the inserting plate 73 to deflect when it encounters resistance during the insertion process, so that the included angle between the inserting plate 73 and the pressure bearing plate 72 gradually decreases, making it difficult for the inserting plate 73 to be pulled out after hooking into the side wall of the pipe.

[0032] The implementation principle of a pipe connection clamp according to an embodiment of this application is as follows: When using the clamp, firstly, the clamp is moved and fitted onto the outside of the pipe, so that the end piece 53 abuts against the end side wall of the pipe, determining the position of the clamp fitting into the pipe. Then, external stamping machinery is used to first apply pressure to the pressure plate 72, causing the pressure plate 72 to drive the insertion piece 73 to insert into the side wall of the pipe. Then, external stamping machinery is used to apply pressure to the connecting piece 421, causing the connecting piece 421 to drive the insertion piece 422 to insert into the side wall of the pipe, thereby completing the pre-fixation of the clamp and the pipe. Then, the pipe is placed on the object to be connected, and the bolt 2 is turned to gradually tighten the clamp 1. Since the insertion piece 422 and the piercing piece 73 are fixed to the pipe, the clamp 1 at these two points is fixed to the position of the pipe. Therefore, as the clamp 1 tightens, the two ends of the elastic piece 41 gradually bend with the clamp 1, and the two ends of the elastic piece 41 slide relative to the clamp 1. Since the clamp has been pre-fixed, it is no longer necessary to support the clamp when tightening it, thus achieving the purpose of improving the installation efficiency when fixing the pipe with clamps.

[0033] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A pipe connection clamp, comprising a clamp band (1), a bolt (2), and a housing (3), wherein the housing (3) is fixedly connected to one end of the clamp band (1), the other end of the clamp band (1) is inserted into the housing (3) and slidably connected to the housing (3), the bolt (2) is located inside the housing (3), and the clamp band (1) is provided with teeth, the teeth of the clamp band (1) engaging with the thread of the bolt (2), characterized in that: The clamp belt (1) is provided with a sliding positioning part (4), which is slidably connected to the clamp belt (1). The sliding positioning part (4) is used to pre-fix the clamp to the pipe. The sliding positioning part (4) includes an elastic piece (41) and a positioning piece (42). The elastic piece (41) is located inside the annular clamp band (1). Both ends of the elastic piece (41) are slidably connected to the clamp band (1). The positioning piece (42) is fixedly connected to the elastic piece (41). The positioning piece (42) is used to insert into the pipe. The positioning piece (42) includes a connecting piece (421) and an insertion piece (422). The connecting piece (421) is fixedly connected to the elastic piece (41). There are two insertion pieces (422). Both insertion pieces (422) are perpendicular to and fixedly connected to the connecting piece (421). An insertion piece (422) is provided on the side wall of each of the two perpendicular elastic pieces (41) of the connecting piece (421). The connecting piece (421) is used to bear the force that pushes the insertion piece (422) into the pipe.

2. The pipe connection clamp according to claim 1, characterized in that: The insert (422) has a pointed tip (4221) at the end away from the connecting piece (421), and the pointed tip (4221) occupies half of the total length of the insert (422).

3. A pipe connection clamp according to claim 2, characterized in that: The tip (4221) is set to be arc-shaped.

4. A pipe connection clamp according to claim 1, characterized in that: The elastic sheet (41) is also provided with a pipe end positioning device (5). The pipe end positioning device (5) includes an mounting plate (51), an inclined plate (52), and an end plate (53). The mounting plate (51) is fixedly connected to the elastic sheet (41). The inclined plate (52) is arranged parallel to the elastic sheet (41) and fixedly connected to the mounting plate (51). The end plate (53) is arranged on the side of the mounting plate (51) away from the elastic sheet (41). The end plate (53) is used to abut against the end side wall of the pipe.

5. A pipe connection clamp according to claim 4, characterized in that: An arc-shaped reinforcing rib (6) is provided between the inclined plate (52) and the mounting plate (51), and the two ends of the reinforcing rib (6) are fixedly connected to the inclined plate (52) and the mounting plate (51) respectively.

6. A pipe connection clamp according to claim 4, characterized in that: The inclined plate (52) and the mounting plate (51) form a 140° angle.

7. A pipe connection clamp according to claim 1, characterized in that: The insertion piece (422) and the connecting piece (421) form an angle between 80° and 85°.

8. A pipe connection clamp according to claim 1, characterized in that: The clamp band (1) is also provided with a fixing and positioning part (7), which includes a fixing piece (71), a pressure bearing piece (72) and a piercing piece (73). The fixing piece (71) is fixedly connected to the pressure bearing piece (72) and the clamp band (1) respectively. There are two piercing pieces (73), and both piercing pieces (73) are fixedly connected to the pressure bearing piece (72).

9. A pipe connection clamp according to claim 8, characterized in that: The insertion piece (73) has a pointed tip (4221) at the end away from the pressure plate (72).

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