A pipe clamp assembly pliers

Abstract

The present invention relates to a pipe clip assembly pliers, which comprises a first pliers body and a second pliers body that are cross-hinged with each other. The first pliers body includes a first handle and a first clamping arm; the second pliers body includes a second handle and a second clamping arm, and further includes a first movable pliers shell and a second movable pliers shell. The first movable pliers shell is installed on the first clamping arm through a first positioning pin, and the second movable pliers shell is installed on the second clamping arm through a second positioning pin. Clamping grooves are provided on the inner sides of the first movable pliers shell and the second movable pliers shell. By using the pipe clip assembly pliers of the present invention, the technical problem that other auxiliary tools are needed during the assembly of the pipe clip, and even other personnel are needed to assist in fixing the pipe clip, wasting a large amount of labor time can be solved.

Description

Technical Field

[0001] The present invention relates to a pipe clamp assembly pliers, belonging to the technical field of automobile air-conditioning pipeline assembly tooling. Background Art

[0002] The pipe clamp for automobile air-conditioning pipeline is a fastener applied to the automobile air-conditioning pipeline to fix the air-conditioning pipeline. The air-conditioning pipeline structure inside the automobile is complex, and the routing of the air-conditioning pipeline is relatively long. Therefore, several pipe clamps are required to fasten the pipeline when it is arranged inside the automobile, so as to prevent the pipeline from shaking and wearing during the driving of the automobile, and ensure the stability of the pipeline installation during driving.

[0003] In the mass production stage of automobiles, the pipe clamp assembly depends on special pipe clamp assembly tooling to complete. However, in the sample stage of new projects in the early stage, due to the lack of pipe clamp assembly tooling, on-site assembly workers often use a "vise" to complete the assembly. When using the "vise" for assembly, it is necessary to first put the rubber sleeve on the designated position of the pipeline, then put the pipe clamp on the rubber sleeve, and then manually press the upper pipe clamp piece 1501 and the lower pipe clamp piece 1502 of the pipe clamp together. While maintaining the pressing, use the "vise" to bend the lug 1503 on the pipe clamp 15 downward, so that the pipe clamp is closed. The disadvantages are: (1) As Figure 1 shown, when the lug 1503 is bent downward by using the vise, under the extrusion of the vise on the lug 1503, the pipe clamp 15 will move away from the vise jaw. Therefore, when using the "vise" for assembly, other auxiliary tools or even other personnel are needed to assist in fixing the pipe clamp 15, and another person uses the "vise" to bend the lug on the pipe clamp downward to complete the closing of the pipe clamp, wasting a lot of manual time; (2) This operation method cannot ensure the flatness after the lug 1503 is folded, cannot ensure the clamping quality, and even less can ensure the clamping consistency; (3) In addition, when the lug 1503 of the pipe clamp is not clamped in place at one time, the staff will repeatedly squeeze the pipe clamp 15, resulting in the peeling off of the surface anti-corrosion layer of the pipe clamp 15 and the problem of easy corrosion of the pipe clamp; (4) This assembly method is time-consuming and laborious, with low efficiency, the operator is prone to fatigue, and there are also risks such as being clamped by the vise. Summary of the Invention

[0004] The purpose of the present invention is to provide a new technical solution to improve or solve the technical problems existing in the above-mentioned prior art.

[0005] The technical solution provided by the present invention is as follows: A pipe clip assembly pliers, including a first pliers body and a second pliers body that are cross-hinged to each other. The first pliers body includes a first handle and a first clamping arm; the second pliers body includes a second handle and a second clamping arm, and further includes a first movable pliers shell and a second movable pliers shell. The first movable pliers shell is installed on the first clamping arm through a first positioning pin, and the second movable pliers shell is installed on the second clamping arm through a second positioning pin. Clamping grooves are provided on the inner sides of the first movable pliers shell and the second movable pliers shell.

[0006] Further, both the first clamping arm and the second clamping arm include a chuck. The inner side of the chuck is a clamping surface, and the clamping surface is a bevel structure.

[0007] Further, both the first clamping arm and the second clamping arm include a clamping arm body and a chuck. The chuck is pin-connected to the clamping arm body through a chuck pin.

[0008] Further, the upper part of the clamping arm body is an arc surface structure, the lower part of the chuck is an arc surface structure adapted to the upper arc surface of the clamping arm body, and a fitting gap is left between the lower part of the chuck and the upper part of the clamping arm body.

[0009] The chuck is pin-connected to the clamping arm body through a pin shaft, and a fitting gap is left between the lower part of the chuck and the upper part of the clamping arm body. Therefore, the chuck can rotate around the pin shaft, which can effectively prevent the first clamping arm and the second clamping arm of the assembly pliers from jamming and not returning to the original position when clamping the pipe clip.

[0010] Further, a first arc-shaped long hole and a second arc-shaped long hole are respectively provided on the first movable pliers shell and the second movable pliers shell. The first movable pliers shell is installed on the first clamping arm through the first positioning pin and the first arc-shaped long hole, and the second movable pliers shell is installed on the second clamping arm through the second positioning pin and the second arc-shaped long hole.

[0011] Further, a first support protrusion and a second support protrusion are respectively provided on the outer sides of the first clamping arm and the second clamping arm. The first support protrusion contacts the inner wall of the first movable pliers shell, and the second support protrusion contacts the inner wall of the second movable pliers shell.

[0012] During the process of clamping the pipe clamp, the first support protrusion contacts the inner wall of the first movable shell head, and the second support protrusion contacts the inner wall of the second movable shell head. The first support protrusion serves as the fulcrum for the movement of the first movable clamp shell, restricting the movement trajectory of the first movable clamp shell under the cooperation of the first positioning pin and the first arc-shaped long hole. The second support protrusion serves as the fulcrum for the movement of the second movable clamp shell, restricting the movement trajectory of the second movable clamp shell under the cooperation of the second positioning pin and the second arc-shaped long hole. That is, the first support protrusion cooperates with the first positioning pin and the first arc-shaped long hole to restrict the movement trajectory of the first movable shell, and the second support protrusion cooperates with the second positioning pin and the second arc-shaped long hole to restrict the movement trajectory of the second movable shell.

[0013] Further, it further includes a first tension spring disposed between the first clamping arm and the first movable clamp shell, and a second tension spring disposed between the second clamping arm and the second movable clamp shell.

[0014] The first tension spring is used to pull the first movable clamp shell to reset, and the second tension spring is used to pull the second movable clamp shell to reset.

[0015] Further, both the first clamping arm and the second clamping arm are provided with tension spring channels. The outer end of the first tension spring is connected to the first movable clamp shell, and the inner end is connected to the inside of the tension spring channel of the first clamp arm. The outer end of the second tension spring is connected to the second movable clamp shell, and the inner end is connected to the inside of the tension spring channel of the second clamp arm.

[0016] Further, the clamping groove has a tightening surface that slopes downward.

[0017] Further, the clamping groove is a U-shaped structure. The U-shaped structure includes an upper corner and a lower corner. The upper corner is a right angle, and the lower corner is an obtuse angle.

[0018] Further, the clamping surface of the chuck is provided with anti-slip lines.

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0020] When the pipe clamp assembly pliers of the present invention assemble the pipe clamp, the first movable clamp shell and the second movable clamp shell cooperate with each other to restrict the upward movement of the pipe clamp during assembly, prevent the pipe clamp from disengaging from between the first clamping portion and the second clamping portion during the assembly process, and can bend the lug on the pipe clamp in place at one time, avoiding the problem of the anti-corrosion layer on the surface of the pipe clamp peeling off during the repeated clamping process, thereby improving the clamping effect, ensuring the clamping quality and consistency, and no other auxiliary tools or other personnel are required to assist during the clamping process, saving manpower. Description of the Drawings

[0021] Figure 1 Structural schematic diagram when using a vise for assembly;

[0022] Figure 2 Front view of the pipe clip assembly pliers of the first specific embodiment of the present invention;

[0023] Figure 3 Left view of the pipe clip assembly pliers of the first specific embodiment of the present invention;

[0024] Figure 4 Front view of the pipe clip assembly pliers of the first specific embodiment of the present invention without the movable jaw housing installed;

[0025] Figure 5 Front view of the second movable jaw housing of the present invention;

[0026] Figure 6 Left view of the second movable jaw housing of the present invention;

[0027] Figure 7 Front view of the pipe clip assembly pliers of the second specific embodiment of the present invention;

[0028] Figure 8 Front view of the pipe clip assembly pliers of the second specific embodiment of the present invention without the movable jaw housing installed;

[0029] Figure 9 Front view of the first pliers body or the second pliers body of the second specific embodiment of the present invention;

[0030] Figure 10 Left view of the first pliers body or the second pliers body of the second specific embodiment of the present invention

[0031] Figure 11 Front view of the chuck of the present invention;

[0032] Figure 12 Left view of the chuck of the present invention;

[0033] Figure 13 Structural schematic diagram of the pipe clip in the unfolded state;

[0034] Figure 14 Structural schematic diagram after the upper pipe clip piece and the lower pipe clip piece of the pipe clip are pressed together;

[0035] Figures 15 to 17 Process schematic diagram of the pipe clip assembly pliers of the present invention assembling the pipe clip;

[0036] Figure 18 Structural schematic diagram after the pipe clip assembly is completed;

[0037] In the figure, 1 is the first jaw body; 101 is the first handle; 102 is the first clamping arm; 2 is the second jaw body; 201 is the second handle; 202 is the second clamping arm; 3 is the first movable jaw housing; 301 is the first arcuate elongated hole; 4 is the second movable jaw housing; 401 is the second arcuate elongated hole; 5 is the first positioning pin; 6 is the second positioning pin; 701 is the first support projection; 702 is the second support projection; 8 is the clamping surface; 9 is the clamping arm body; 10 is the chuck; 11 is the arc surface structure; 12 is the mating clearance; 1301 is the first tension spring; 1302 is the second tension spring; 14 is the tension spring passage; 15 is the pipe clamp; 1501 is the upper pipe clamp piece; 1502 is the lower pipe clamp piece; 1503 is the lug; 16 is the clamping groove; 1601 is the tightening surface. Detailed implementation mode

[0038] The principles and features of the present invention will be described below in conjunction with examples. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. Specific Example 1:

[0040] As Figures 2 to 6 shown, a pipe clamp assembly pliers includes a first jaw body 1 and a second jaw body 2 that are cross-hinged to each other. The first jaw body 1 includes a first handle 101 and a first clamping arm 102; the second jaw body 2 includes a second handle 201 and a second clamping arm 202. It also includes a first movable jaw housing 3 and a second movable jaw housing 4. The first movable jaw housing 3 is installed on the first clamping arm 102 through the first positioning pin 5, and the second movable jaw housing 4 is installed on the second clamping arm 202 through the second positioning pin 6. Clamping grooves 16 are provided on the inner sides of the first movable jaw housing 3 and the second movable jaw housing 4.

[0041] More specifically, the first movable jaw housing 3 and the second movable jaw housing 4 are respectively provided with a first arcuate elongated hole 301 and a second arcuate elongated hole 401. The first movable jaw housing 3 is installed on the first clamping arm 102 through the first positioning pin 5 and the first arcuate elongated hole 301, and the second movable jaw housing 4 is installed on the second clamping arm 202 through the second positioning pin 6 and the second arcuate elongated hole 401. First support projections 701 and second support projections 702 are also provided on the outer sides of the first clamping arm 102 and the second clamping arm 202. The first support projection 701 contacts the inner wall of the first movable jaw housing 3, and the second support projection 702 contacts the inner wall of the second movable jaw housing 4.

[0042] During the process of clamping the pipe clamp 15, the first support protrusion 701 contacts the inner wall of the first movable shell head, and the second support protrusion 702 contacts the inner wall of the second movable shell head. The first support protrusion 701 serves as the fulcrum for the movement of the first movable clamp shell 3, restricting the movement trajectory of the first movable clamp shell 3 under the cooperation of the first positioning pin 5 and the first arc-shaped long hole 301. The second support protrusion 702 serves as the fulcrum for the movement of the second movable clamp shell 4, restricting the movement trajectory of the second movable clamp shell 4 under the cooperation of the second positioning pin 6 and the second arc-shaped long hole 401. That is, the first support protrusion 701 cooperates with the first positioning pin 5 and the first arc-shaped long hole 301 to restrict the movement trajectory of the first movable shell, and the second support protrusion 702 cooperates with the second positioning pin 6 and the second arc-shaped long hole 401 to restrict the movement trajectory of the second movable shell. Without the first support protrusion 701 and the second support protrusion 702, after the clamping grooves 16 of the first movable clamp shell 3 and the second movable clamp shell 4 come into contact with the pipe clamp 15, the next movement of the first handle 101 and the second handle 201 will drive the first movable clamp shell 3 and the second movable clamp shell 4 to move together, unable to ensure that the movable clamp shell can operate along the guiding trajectory of the arc-shaped long hole. The first movable clamp shell 3 and the second movable clamp shell 4 cannot clamp the pipe clamp 15 well. The first support protrusion 701 and the second support protrusion 702 ensure that during the process of the first clamping arm 102 and the second clamping arm 202 clamping the lug 1503 of the pipe clamp 15, the first movable clamp shell 3 and the second movable clamp shell 4 can always maintain the state of clamping the pipe clamp 15, preventing the pipe clamp 15 from moving upward.

[0043] In addition, in this embodiment, both the first clamping arm 102 and the second clamping arm 202 include a chuck 10. The inner side of the chuck 10 is a clamping surface 8, and the clamping surface 8 is a bevel structure. The pipe clamp assembly pliers further include a first tension spring 1301 disposed between the first clamping arm 102 and the first movable clamp shell 3, and a second tension spring 1302 disposed between the second clamping arm 202 and the second movable clamp shell 4. After the bending action of the lug 1503 of the pipe clamp 15 is completed, the first tension spring 1301 is used to pull the first movable clamp shell 3 to reset, and the second tension spring 1302 is used to pull the second movable clamp shell 4 to reset. Both the first clamping arm 102 and the second clamping arm 202 are provided with tension spring channels 14. The outer end of the first tension spring 1301 is connected to the first movable clamp shell 3 through a pin shaft, and the inner end is connected to the inside of the tension spring channel 14 of the first clamp arm through a pin shaft. The outer end of the second tension spring 1302 is connected to the second movable clamp shell 4 through a pin shaft, and the inner end is connected to the inside of the tension spring channel 14 of the second clamp arm through a pin shaft.

[0044] The clamping groove 16 has a downwardly inclined tightening surface 1601. More specifically, the clamping groove 16 is of a U-shaped structure, which includes an upper corner and a lower corner. The upper corner is a right angle, and the lower corner is an obtuse angle. The structure of the clamping groove 16 can stably clamp the pipe clamp 15 in the embodiment. Of course, according to the different structures of the pipe clamp 15, the clamping groove 16 can also adopt other structural forms, such as a V-shaped structure, etc. The clamping surface 8 of the chuck 10 is provided with anti-slip lines, which can increase the friction between the chuck 10 and the pipe clamp 15.

[0045] When the pipe clamp assembly pliers of the present invention assemble the pipe clamp 15, the first movable plier shell 3 and the second movable plier shell 4 cooperate with each other to limit the upward movement of the pipe clamp 15 during assembly, prevent the pipe clamp 15 from disengaging from between the first clamping portion and the second clamping portion during the assembly process, and can bend the lug 1503 on the pipe clamp 15 in place at one time, avoiding the problem of the anti-corrosion layer on the surface of the pipe clamp 15 peeling off during the repeated clamping process, thereby improving the clamping effect, ensuring the clamping quality and consistency, and no other auxiliary tools or other personnel are required to assist during the clamping process, saving manpower. Specific Embodiment Two:

[0047] As Figures 7 to 12 shown, different from Specific Embodiment One, the first clamping arm 102 and the second clamping arm 202 both include a clamping arm body 9 and a chuck 10. The chuck 10 is pin-connected to the clamping arm body 9 through a chuck pin. The upper part of the clamping arm body 9 is an arc surface structure 11, the lower part of the chuck 10 is an arc surface structure 11 adapted to the upper arc surface of the clamping arm body 9, and a fitting gap 12 is left between the lower part of the chuck 10 and the upper part of the clamping arm body 9.

[0048] The chuck 10 is pin-connected to the clamping arm body 9 through a pin shaft, and a fitting gap 12 is left between the lower part of the chuck 10 and the upper part of the clamping arm body 9. Therefore, the chuck 10 can rotate around the pin shaft, which can effectively prevent the first clamping arm 102 and the second clamping arm 202 of the assembly pliers from getting stuck and unable to return to position when clamping the pipe clamp 15.

[0049] As Figures 13 to 18 shown, the usage method of the pipe clamp assembly pliers for assembling the pipe clamp is as follows:

[0050] (1) First, press the upper pipe clip 1501 and the lower pipe clip 1502 of the pipe clamp 15 together (as Figure 13 and 14 shown), and place the pipe clamp 15 in the clamping groove 16 between the first clamping arm 102 and the second clamping arm 202 (as Figure 15), close the first clamping arm 102 and the second clamping arm 202, and make the clamping groove 16 fit with both sides of the pipe clip lug 1503 to position the pipe clip 15 (such as Figure 16 ), during the subsequent clamping process, the clamping grooves 16 on the first movable clamp housing 3 and the second movable clamp housing 4 can hoop the pipe clip 15 to prevent the pipe clip 15 from moving upward;

[0051] (2) As Figure 17 shown, when the operator continues to hold the handle tightly and the first clamping arm 102 and the second clamping arm 202 continue to clamp, the first support protrusion 701 contacts and slides with the inner wall of the first movable clamp housing 3, and the first movable clamp housing 3 has a relative displacement relative to the first clamping arm 102. Under the limiting action of the first arc-shaped long hole 301 and the first positioning pin 5, the first positioning pin 5 guides the first movable clamp housing 3 and the first clamping arm 102 to move relatively along the first arc-shaped long hole 301; the second support protrusion 702 contacts and slides with the inner wall of the second movable clamp housing 4, and the second movable clamp housing 4 has a relative displacement relative to the second clamping arm 202. Under the limiting action of the second arc-shaped long hole 401 and the second positioning pin 6, the second positioning pin 6 guides the second movable clamp housing 4 and the second clamping arm 202 to move relatively along the second arc-shaped long hole 401. Thus, during the process of the first clamping arm 102 and the second clamping arm 202 applying force to clamp the lug 1503 of the pipe clip 15, the first movable clamp housing 3 and the second movable clamp housing 4 can always maintain the state of hooping the pipe clip 15 to prevent the pipe clip 15 from moving upward;

[0052] (3) After the first clamping arm 102 and the second clamping arm 202 are completely closed, after the lug 1503 of the pipe clip 15 is bent to fit completely with the lower pipe clip piece 1502 (such as Figure 18 shown), release the handle. The first tension spring 1301 is used to pull the first movable clamp housing 3 to reset, and the second tension spring 1302 is used to pull the second movable clamp housing 4 to reset, completing the assembly of the pipe clip 15.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pipe clamp assembly pliers, comprising a first pliers body (1) and a second pliers body (2) which are cross-hinged to each other, the first pliers body (1) comprising a first handle (101) and a first clamping arm (102); the second pliers body (2) comprising a second handle (201) and a second clamping arm (202), characterized in that, It further includes a first movable jaw housing (3) and a second movable jaw housing (4). The first movable jaw housing (3) is mounted on the first clamping arm (102) through a first positioning pin (5), and the second movable jaw housing (4) is mounted on the second clamping arm (202) through a second positioning pin (6). Clamping grooves (16) are provided on the inner sides of the first movable jaw housing (3) and the second movable jaw housing (4). Both the first clamping arm (102) and the second clamping arm (202) include a chuck (10). The inner side of the chuck (10) is a clamping surface (8), and the clamping surface (8) is a bevel structure. The clamping groove (16) has a tightening surface (1601) that slopes downward.

2. The pipe clip assembly pliers according to claim 1, characterized in that Both the first clamping arm (102) and the second clamping arm (202) include a clamping arm body (9), and the chuck (10) is pinned to the clamping arm body (9) through a chuck pin.

3. The pipe clamp assembly pliers according to claim 2, characterized in that, The upper part of the clamping arm body (9) is an arc surface structure (11), the lower part of the chuck (10) is an arc surface structure (11) adapted to the upper arc surface of the clamping arm body (9), and a fitting gap (12) is left between the lower part of the chuck (10) and the upper part of the clamping arm body (9).

4. The pipe clamp assembly pliers according to claim 1, characterized in that, First arc-shaped long holes (301) and second arc-shaped long holes (401) are respectively provided on the first movable jaw housing (3) and the second movable jaw housing (4). The first movable jaw housing (3) is mounted on the first clamping arm (102) through the first positioning pin (5) and the first arc-shaped long hole (301), and the second movable jaw housing (4) is mounted on the second clamping arm (202) through the second positioning pin (6) and the second arc-shaped long hole (401).

5. The pipe clamp assembling pliers according to claim 4, characterized in that, First support protrusions (701) and second support protrusions (702) are further provided on the outer sides of the first clamping arm (102) and the second clamping arm (202). The first support protrusion (701) contacts the inner wall of the first movable jaw housing (3), and the second support protrusion (702) contacts the inner wall of the second movable jaw housing (4).

6. The pipe clip assembly pliers according to claim 5, characterized in that, It further includes a first tension spring (1301) provided between the first clamping arm (102) and the first movable jaw housing (3), and a second tension spring (1302) provided between the second clamping arm (202) and the second movable jaw housing (4).

7. The pipe clamp assembly pliers according to claim 6, characterized in that, Tension spring channels (14) are provided on both the first clamping arm (102) and the second clamping arm (202). The outer end of the first tension spring (1301) is connected to the first movable jaw housing (3), and the inner end is connected to the inside of the tension spring channel (14) of the first clamping arm. The outer end of the second tension spring (1302) is connected to the second movable jaw housing (4), and the inner end is connected to the inside of the tension spring channel (14) of the second clamping arm.

8. The pipe clip assembly pliers according to claim 1, characterized in that, Anti-slip lines are provided on the clamping surface (8) of the chuck (10).

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