Double insertion hook type clamp

Abstract

The application relates to the field of pipeline connection, in particular to a double-insertion hook type clamp 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, a tooth is arranged on the clamp belt, the tooth of the clamp belt is engaged with a thread of the bolt, a sliding positioning part is arranged on the clamp belt, the sliding positioning part is slidably connected with the clamp belt, and the sliding positioning part is used for pre-fixing the clamp and a pipeline; the sliding positioning part comprises elastic sheets, positioning hooks and positioning sheets, the elastic sheets are located in the annular clamp belt, both ends of the elastic sheets are slidably connected with the clamp belt, two positioning sheets are arranged, the two positioning sheets are located at two sides of the positioning hooks respectively, the positioning hooks and the positioning sheets are fixedly connected with the elastic sheets, and the positioning hooks and the positioning sheets are used for being inserted into a side wall of the pipeline, so that the installation efficiency of the clamp for fixing the pipeline is improved.

Description

Technical Field

[0001] This application relates to the field of pipe connections, and in particular to a double-insertion hook-type clamp. 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 double-insertion hook-type 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 double-insertion hook-type 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 is provided with teeth, which mesh with the threads of the bolt. The clamp band is provided with a sliding positioning part, which is slidably connected to the clamp band. The sliding positioning part is used to pre-fix the clamp to the pipe.

[0008] The sliding positioning part includes an elastic sheet, a positioning hook, and a positioning plate. The elastic sheet is located inside the annular clamp band, and both ends of the elastic sheet are slidably connected to the clamp band. Two positioning plates are provided, and the two positioning plates are located on both sides of the positioning hook. The positioning hook and the positioning plate are both fixedly connected to the elastic sheet. The positioning hook and the positioning plate are both used to insert into the side wall of the pipe.

[0009] Furthermore, the positioning hook includes a connecting piece and an insertion hook. The connecting piece is fixedly connected to the elastic piece, and the insertion hook is fixedly connected to the connecting piece. The insertion hook is provided on the side wall of the connecting piece away from the elastic piece. The connecting piece is used to withstand the force that pushes the insertion hook into the side wall of the pipe.

[0010] Furthermore, the insertion hook includes a vertical piece and a folding piece. The vertical piece is fixedly connected to the connecting piece, one end of the folding piece is fixedly connected to the vertical piece, and the other end is folded towards the end close to the elastic piece.

[0011] Furthermore, the end of the folding piece away from the vertical piece is set as a pointed end.

[0012] Furthermore, the angle between the folding piece and the vertical piece is an obtuse angle.

[0013] Furthermore, the positioning piece includes a vertical piece and a beveled tip. The vertical piece is fixedly connected to the elastic piece and is perpendicular to the insertion hook. The beveled tip is fixedly connected to the end of the vertical piece away from the elastic piece.

[0014] 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.

[0015] Furthermore, the end of the inserting piece away from the pressure plate is provided with a pointed tip.

[0016] In summary, this application has the following technical effects:

[0017] 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, and then the pipes are placed on the objects to be connected. Turning the bolts causes the clamps to gradually tighten. Since the clamps have been pre-fixed, there is no need to support the clamps when tightening them, thus improving the installation efficiency when fixing pipes with clamps.

[0018] 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-fixation and ensuring proper fixation when the pipe is connected to the object to be connected.

[0019] By setting up positioning hooks and positioning plates, the vertical plate and the insertion hook are perpendicular to each other, so that the elastic plate is fixed to the side wall of the pipe during the tightening process of the clamp. This prevents the vertical plate or the insertion hook from sliding on the side wall of the pipe due to the deformation of the elastic plate, thereby cutting and damaging the side wall of the pipe. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of a double-insertion hook-type clamp according to this application;

[0021] Figure 2 This is a schematic diagram of the sliding positioning part of this application;

[0022] Figure 3 This is a structural schematic diagram of the fixing and positioning part of this application.

[0023] In the diagram, 1. Clamping strap; 2. Bolt; 3. Housing; 4. Sliding positioning part; 41. Elastic plate; 411. Waist-shaped groove; 42. Positioning hook; 421. Connecting plate; 422. Insertion hook; 4221. Vertical plate; 4222. Folding plate; 43. Positioning plate; 431. Vertical plate; 432. Angled tip; 5. Fixed positioning part; 51. Fixed plate; 52. Pressure bearing plate; 53. Insertion plate. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 This embodiment provides a double-insertion hook-type 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 5. The sliding positioning part 4 is slidably connected to the clamp band 1, and the fixed positioning part 5 is fixedly connected to the clamp band 1. Both the fixed positioning part 5 and the sliding positioning part 4 are used to pre-fix the clamp to the pipeline.

[0026] Reference Figure 1 and Figure 2The sliding positioning part 4 includes an elastic sheet 41 and a positioning hook 42. The elastic sheet 41 is located inside the annular clamp band 1. The elastic sheet 41 has a waist-shaped groove 411. Both ends of the elastic sheet 41 are slidably connected to the clamp band 1. The positioning hook 42 is fixedly connected to the elastic sheet 41 and is used to insert into the pipe. The positioning hook 42 includes a connecting piece 421 and an insertion hook 422. The connecting piece 421 is fixedly connected to the elastic sheet 41, and the insertion hook 422 is fixedly connected to the connecting piece 421. The insertion hook 422 is provided on the side wall of the connecting piece 421 away from the elastic sheet 41. The connecting piece 421 is used to bear the force that pushes the insertion hook 422 into the side wall of the pipe. The insertion hook 422 includes a vertical piece 4221 and a folding piece 4222. 21 is fixedly connected to the connecting piece 421. One end of the folding piece 4222 is fixedly connected to the vertical piece 4221, and the other end is folded towards the end close to the elastic piece 41. The end of the folding piece 4222 away from the vertical piece 4221 is set as a pointed tip, and the included angle between the folding piece 4222 and the vertical piece 4221 is an obtuse angle. In this embodiment, the included angle between the folding piece 4222 and the vertical piece 4221 is preferably 95°. The size of the connecting piece 421 is preferably 10mm long and 4.8mm wide. The insertion hook 422 is preferably set to one. The size of both insertion hooks 422 is preferably 5.2mm long. The folding piece 4222 of both insertion hooks 422 is preferably 1mm. The two insertion hooks 422 are set at an included angle of 9°.

[0027] Reference Figure 2 The positioning piece 43 includes a vertical piece 431 and a beveled tip 432. The vertical piece 431 is fixedly connected to the elastic piece 41. The vertical piece 431 is perpendicular to the insertion hook 422. The beveled tip 432 is fixedly connected to the end of the vertical piece 431 away from the elastic piece 41.

[0028] Reference Figure 3 The clamp belt 1 is also provided with a fixing and positioning part 5, which includes a fixing piece 51, a pressure bearing piece 52 and a piercing piece 53. The fixing piece 51 is fixedly connected to the pressure bearing piece 52 and the clamp belt 1 respectively. There are two piercing pieces 53, and both piercing pieces 53 are fixedly connected to the pressure bearing piece 52. The end of the piercing piece 53 away from the pressure bearing piece 52 is provided with a pointed tip.

[0029] The implementation principle of a double-insertion hook-type clamp in this application embodiment is as follows: When using the clamp, firstly, the clamp is moved and placed on the outside of the pipe to determine the position where the clamp is inserted into the pipe. Then, external stamping machinery is used to apply pressure to the pressure plate 52, causing the pressure plate 52 to drive the insertion plate 53 to insert into the side wall of the pipe. Then, external stamping machinery is used to apply pressure to the connecting plate 421, causing the connecting plate 421 to drive the insertion hook 422 to insert into the side wall of the pipe. At this time, the connecting plate 421 drives the vertical plate 4221 to apply a vertical downward force to the folding plate 4222. As the folding plate 4222 encounters resistance after being inserted into the pipe, the vertical plate 4221 continues to apply pressure. The tip of the folding plate 4222 receives resistance inside the side wall of the pipe, and the tail end is subjected to the downward force of the vertical plate 4221, causing the angle between the folding plate 4222 and the vertical plate 4221 to gradually change from an obtuse angle to an acute angle, thereby fixing the insertion hook 422 to the side wall of the pipe. Inside, at this time, the connecting piece 421 drives the elastic piece 41 to move downward, and the vertical piece 431 of the positioning piece 43 moves downward under the action of the elastic piece 41. The vertical piece 431 drives the inclined tip 432 to insert into the side wall of the pipe. The positioning piece 43 and the positioning hook 42 are in a vertical state within the cross section of the pipe. The above steps complete 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 rotated to make the clamp band 1 gradually tighten. Since the positioning hook 42, the positioning piece 43 and the insert piece 53 are fixed to the pipe, the clamp band 1 at these two places is fixed to the position of the pipe. Therefore, as the clamp band 1 tightens, the two ends of the elastic piece 41 gradually bend with the clamp band 1, and the two ends of the elastic piece 41 slide relative to the clamp band 1. Since the clamp has been pre-fixed in advance, 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.

[0030] 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 double-insertion hook-type 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 sheet (41), a positioning hook (42) and a positioning piece (43). The elastic sheet (41) is located inside the annular clamp band (1). Both ends of the elastic sheet (41) are slidably connected to the clamp band (1). There are two positioning pieces (43). The two positioning pieces (43) are located on both sides of the positioning hook (42). The positioning hook (42) and the positioning piece (43) are fixedly connected to the elastic sheet (41). The positioning hook (42) and the positioning piece (43) are both used to insert into the side wall of the pipe.

2. The double-insertion hook-type clamp according to claim 1, characterized in that: The positioning hook (42) includes a connecting piece (421) and an insertion hook (422). The connecting piece (421) is fixedly connected to the elastic piece (41), and the insertion hook (422) is fixedly connected to the connecting piece (421). The insertion hook (422) is provided on the side wall of the connecting piece (421) away from the elastic piece (41). The connecting piece (421) is used to withstand the force that pushes the insertion hook (422) to insert into the side wall of the pipe.

3. A double-insertion hook-type clamp according to claim 2, characterized in that: The insertion hook (422) includes a vertical piece (4221) and a folding piece (4222). The vertical piece (4221) is fixedly connected to the connecting piece (421). One end of the folding piece (4222) is fixedly connected to the vertical piece (4221), and the other end is folded towards the end close to the elastic piece (41).

4. A double-insertion hook-type clamp according to claim 3, characterized in that: The end of the folding piece (4222) away from the vertical piece (4221) is set as a pointed end.

5. A double-insertion hook-type clamp according to claim 4, characterized in that: The angle between the folding piece (4222) and the vertical piece (4221) is an obtuse angle.

6. A double-insertion hook-type clamp according to claim 1, characterized in that: The positioning piece (43) includes a vertical piece (431) and a beveled tip (432). The vertical piece (431) is fixedly connected to the elastic piece (41). The vertical piece (431) is perpendicular to the insertion hook (422). The beveled tip (432) is fixedly connected to the end of the vertical piece (4221) away from the elastic piece (41).

7. A double-insertion hook-type clamp according to claim 1, characterized in that: The clamp band (1) is also provided with a fixing and positioning part (5), which includes a fixing piece (51), a pressure bearing piece (52) and a piercing piece (53). The fixing piece (51) is fixedly connected to the pressure bearing piece (52) and the clamp band (1) respectively. There are two piercing pieces (53), and both piercing pieces (53) are fixedly connected to the pressure bearing piece (52).

8. A double-insertion hook-type clamp according to claim 7, characterized in that: The insertion piece (53) has a pointed tip at the end away from the pressure plate (52).

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