Pipe joint tightening tool

Abstract

The utility model relates to a pipe joint tightening tool which is provided with a first chuck, the center of the first chuck is provided with a vertically-communicated sleeve hole, the left side and the right side of the first chuck are provided with guide positioning holes penetrating through the sleeve hole, and the two guide positioning holes are symmetrical with the sleeve hole as the center. Adjusting nuts are fixedly welded to the positions, corresponding to the outer ends of the guiding positioning holes, of the outer side of the first chuck, clamping rods are arranged in the guiding positioning holes and the corresponding adjusting nuts in a penetrating mode, and the two clamping rods in the two guiding positioning holes are symmetrical to each other. The clamping rod is a threaded rod and is in threaded connection with the adjusting nut, the end, away from the sleeving hole, of the clamping rod extends to the outer side of the first clamping head, and a long handle or a plum blossom handle fixedly connected with the clamping rod is arranged at the end, located on the outer side of the first clamping head, of the clamping rod. The pipe joint tightening tool is simple in structure and can be arranged outside a pipe body of a pipe joint in a sleeving mode, the pipe joint is fastened and assembled by clamping the outside of the pipe body through the two clamping rods, the assembling time of the pipe joint is saved, and the assembling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a copper pipe tightening device, and more particularly to a pipe joint tightening tool. Background Technology

[0002] In manufacturing and processing, the vast majority of devices, instruments, and various structures or workpieces rely on threaded fastening for connection. In the production and processing of robotic spot welding guns, copper tubing is an essential component. The ends of the copper tubing are welded with nuts to form pipe fittings. During assembly, these fittings are usually tightened manually. However, manual tightening cannot achieve the desired tightness; therefore, tools such as wrenches are typically needed for proper tightening.

[0003] However, some existing products are relatively small in size, and the space at the connection between pipe fittings and accessories is relatively limited. Auxiliary tools such as wrenches cannot be inserted to operate inside, nor can the pipe body extending outwards on the pipe fitting be clamped and screwed. Therefore, it consumes product assembly time, greatly reduces assembly efficiency, and affects production and processing progress. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a pipe fitting tightening tool that facilitates the fastening of pipe fittings.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A pipe fitting tightening tool includes a first chuck with a centrally located, vertically connected socket hole and guide positioning holes on its left and right sides, the two guide positioning holes being symmetrical about the socket hole. An adjusting nut is welded to the outer side of the first chuck at the outer end corresponding to the guide positioning hole. A clamping rod passes through the guide positioning hole and the corresponding adjusting nut, the two clamping rods in the two guide positioning holes being symmetrical. The clamping rod is a threaded rod, which is threadedly connected to the adjusting nut. One end of the clamping rod away from the socket hole extends to the outside of the first chuck, and the end of the clamping rod located outside the first chuck is provided with a long handle or a slatted handle fixedly connected thereto.

[0007] Furthermore, a threaded connection hole is provided at one end of the clamping rod corresponding to the sleeve hole, and a threaded connector is provided on the outside of the threaded connection hole to engage with it. A cavity is provided at the center of one end of the threaded connection hole on the threaded connector, and a connecting hole communicating with the cavity is provided at the center of the other end. The diameter of the connecting hole is smaller than the end face diameter of the cavity. A second chuck is provided on the threaded connector to engage with it. The end face diameter of the second chuck is smaller than the diameter of the guide positioning hole.

[0008] Furthermore, the rear end center of the second chuck has an outwardly protruding cylindrical connector, the external of which is provided with an external thread. The cylindrical connector passes through the connecting hole and is threadedly connected to the limiting nut provided in the cavity.

[0009] Furthermore, the second clamp has a insertion hole at the center of the end face corresponding to the socket hole, and a rubber block is provided in the insertion hole to engage with it. The end face diameter of the rubber block is not greater than the end face diameter of the second clamp.

[0010] Furthermore, the outer end of the adhesive card block is provided with a concave arc-shaped card groove, and the arc-shaped structure of the card groove matches the arc-shaped structure of the inner wall of the socket.

[0011] Furthermore, the guide positioning hole is a threaded hole, and the clamping rod is threadedly engaged with the guide positioning hole.

[0012] Furthermore, the socket is a round hole.

[0013] Furthermore, the socket is a "U"-shaped hole, with one end penetrating through the outer side of the first clamp.

[0014] Compared with the prior art, the advantages of this utility model are: this pipe fitting tightening tool has a simple structure. It can be sleeved on the outside of the pipe body of the pipe fitting and clamped by two symmetrical clamping rods. When the space for pipe fitting installation is relatively limited, this tool can be used to fix it to the pipe body of the pipe fitting. Manually rotating the long handle or the Phillips head handle horizontally can drive the pipe fitting to rotate, thereby achieving the tightening and assembly of the pipe fitting. This realizes the installation and connection of the pipe fitting in a narrow space, saves the assembly time of the pipe fitting, and improves the assembly efficiency of the product. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a pipe fitting tightening tool according to the present invention;

[0017] Figure 2 This is a top view schematic diagram of a pipe fitting tightening tool according to the present invention;

[0018] Figure 3 yes Figure 2 Structural cross-sectional view of AA;

[0019] Figure 4 This is a cross-sectional view of the end structure of the clamp rod in a pipe joint tightening tool of this utility model;

[0020] Figure 5 This is a top view schematic diagram of embodiment two of the pipe joint tightening tool of this utility model.

[0021] In the diagram: 1. First chuck; 11. Socket hole; 12. Adjusting nut; 13. Guide positioning hole; 14. Socket groove; 2. Clamping rod; 21. Threaded connection hole; 22. Threaded connector; 221. Connecting hole; 23. Second chuck; 231. Cylindrical connector; 232. Insertion hole; 24. Limit nut; 25. Locking block; 251. Locking groove; 3. Long handle; 4. Plum blossom handle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships commonly used when the product of the present invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal" or "vertical" does not imply that the component must be absolutely horizontal or vertical, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure or component must be completely horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1

[0028] Please refer to the instruction manual attached. Figures 1 to 3 As shown, the instruction manual is attached. Figures 1 to 3 The present invention discloses a pipe fitting tightening tool, mainly used for auxiliary tightening, installation, or disassembly of pipe fitting parts. The tool has a first chuck 1, with a centrally located, vertically connected socket 11. In this embodiment, the socket 11 is a round hole that can be fitted onto the outside of the pipe body of the pipe fitting. The first chuck 1 has guide positioning holes 13 penetrating the socket 11 on its left and right sides. The two guide positioning holes 13 are symmetrical about the socket 11. The guide positioning holes 13 can be either smooth holes or threaded holes. When the guide positioning holes 13 are smooth holes, an adjusting nut 12 is welded to the outer side of the first chuck 1 corresponding to the outer end of the guide positioning hole 13. A clamping rod 2 passes through the guide positioning hole 13 and the corresponding adjusting nut 12. The two clamping rods 2 inside the guide positioning hole 13 are symmetrical to each other; the clamping rod 2 is a threaded rod, which is threadedly connected to the adjusting nut 12. If the guide positioning hole 13 is a threaded hole, the adjusting nut 12 does not need to be welded to the outside of the first chuck 1, but the clamping rod 2 needs to be threadedly engaged with the guide positioning hole 13 so that when the clamping rod 2 rotates clockwise or counterclockwise, it can move left and right in the guide positioning hole 13. The end of the clamping rod 2 away from the sleeve hole 11 extends to the outside of the first chuck 1. In order to facilitate the operation of the clamping rod 2, a long handle 3 or a plum blossom handle 4 is provided at the end of the clamping rod 2 located outside the first chuck 1 and is fixedly connected to it. The clamping rod 2 can be rotated more conveniently through the long handle 3 or the plum blossom handle 4, and at the same time, the first chuck 1 can be horizontally pushed to rotate with the center of the sleeve hole 11 as the center.

[0029] To ensure that the two clamping rods 2 can hold the pipe fitting body that passes through the socket 11, and to avoid causing damage to the outside of the pipe fitting body, please refer to the appendix of the instruction manual. Figure 4 As shown, a threaded connection hole 21 is provided at one end of the clamping rod 2 corresponding to the sleeve hole 11. A threaded connector 22 is provided on the outside of the threaded connection hole 21 to engage with its thread. The end diameter of the threaded connector 22 is not greater than the end diameter of the clamping rod 2, ensuring that it can pass through the guide positioning hole 13. A cavity 222 is provided at the center of one end of the threaded connection hole 21 on the threaded connector 22, and a connecting hole 221 communicating with the cavity is provided at the center of the other end. It should be noted that the diameter of the connecting hole 221 is smaller than the end face diameter of the cavity 222. A limiting nut 24 with clearance fit is provided in the cavity 222. The threaded connector 22 is provided with a second collet 23 that movably engages with it. The end face diameter of the second collet 23 is smaller than the diameter of the guide positioning hole 13, ensuring that the clamping rod 2 does not interfere with the wall surface of the guide positioning hole 13 when it moves within the guide positioning hole 13. To facilitate the installation of the second collet 23 on the threaded connector 22, the rear end center of the second collet 23 has an outwardly protruding cylindrical connector 231. The cylindrical connector 231 can be inserted into the connecting hole 221, and the external surface of the cylindrical connector 231 is provided with an external thread. The cylindrical connector 231 passes through the connecting hole 221 and engages with the guide positioning hole 13. The limiting nut 24 inside the cavity 222 is threaded, and the second collet 23 is connected to the threaded connector 22 through the limiting nut 24. The back side of the second collet 23, that is, the side corresponding to the end face of the threaded connector 22, is beveled to minimize the contact area between the second collet 23 and the threaded connector 22. When the limiting nut 24 is not fastening the second collet 23 to the threaded connector 22, the second collet 23 can move independently relative to the threaded connector 22. To avoid damaging the pipe connector, an insertion hole 232 is provided on the end face of the second collet 23 corresponding to the socket hole 11. The insertion hole 232 is provided with a fitting for insertion. A rubber clamping block 25 is attached, the end face diameter of which is not greater than the end face diameter of the second clamp 23. It can move within the guide positioning hole 13 along with the clamping rod 2. In order to ensure the clamping effect of the clamping block 25 on the pipe joint, the outer end of the rubber clamping block 25 is provided with a concave arc-shaped groove 251. The arc surface structure of the groove 251 matches the arc structure of the inner wall of the socket hole 11. The arc-shaped groove 251 can also better fit with the outer peripheral surface of the pipe joint, resulting in a better clamping effect, increasing the contact surface with the pipe joint body, and reducing the coefficient of damage to the pipe joint body during clamping.

[0030] Example 2

[0031] See the attached instruction manual. Figure 5As shown, in this embodiment, the pipe fitting tightening tool has the same composition and structure as in Embodiment 1, but the socket 11 is a "U" shaped hole, one end of which penetrates the outer side of the first clamp 1. Through the socket 11 with this structural shape, it can be sleeved onto the pipe body of the pipe fitting from the side of the pipe body.

[0032] Its specific working principle is as follows: Place the socket 11 on the outside of the pipe body of the pipe fitting, rotate the two clamping rods 2 so that the two clamping rods 2 move towards the center of the socket 11, and keep the distance between the two clamping rods 2 moving towards the center of the socket 11 as small as possible, until the two locking blocks 25 on the two clamping rods 2 clamp and fix the outside of the pipe body of the pipe fitting, so that the first clamp 1 is fixedly connected to the pipe fitting. Then, rotate the long handle 3 or the plum blossom handle 4 at the end of the clamping rod 2 horizontally to tighten the pipe fitting onto the fitting or loosen it from the fitting.

[0033] This pipe fitting tightening tool has a simple structure. It can be fitted onto the outside of the pipe fitting body and held in place by two symmetrical clamping rods 2. When the space for pipe fitting installation is limited, this tool can be used to fix it to the pipe fitting body. Manually rotating the long handle 3 or the swivel handle 4 horizontally can drive the pipe fitting to rotate, thereby achieving the tightening and assembly of the pipe fitting. This enables the installation and connection of the pipe fitting in a confined space, saves assembly time, and improves the assembly efficiency of the product.

[0034] It should be emphasized that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pipe fitting tightening tool, characterized in that: The first chuck (1) has a centrally located connecting socket (11) and guide positioning holes (13) through the socket (11) on both sides. The two guide positioning holes (13) are symmetrical about the socket (11). An adjusting nut (12) is fixedly welded to the outer side of the first chuck (1) at the outer end of the guide positioning hole (13). A clamping rod (2) is inserted into the guide positioning hole (13) and the corresponding adjusting nut (12). The two clamping rods (2) in the two guide positioning holes (13) are symmetrical. The clamping rod (2) is a threaded rod that is threaded to the adjusting nut (12). One end of the clamping rod (2) away from the socket (11) extends to the outside of the first chuck (1). A long handle (3) or a plum blossom handle (4) is fixedly connected to the end of the clamping rod (2) located outside the first chuck (1).

2. The pipe fitting tightening tool according to claim 1, characterized in that: The clamping rod (2) has a threaded connection hole (21) at one end corresponding to the sleeve hole (11), and a threaded connector (22) that is threadedly engaged with the threaded connection hole (21) is provided on the outside of the threaded connection hole (21). A cavity (222) is provided at the center of one end of the threaded connection hole (21), and a connecting hole (221) that communicates with the cavity is provided at the center of the other end. The diameter of the connecting hole (221) is smaller than the end face diameter of the cavity (222). A second chuck (23) that is movably engaged with the threaded connector (22) is provided. The end face diameter of the second chuck (23) is smaller than the diameter of the guide positioning hole (13).

3. A pipe fitting tightening tool according to claim 2, characterized in that: The rear end center of the second chuck (23) has an outwardly protruding cylindrical connector (231), and the cylindrical connector (231) is provided with external threads. The cylindrical connector (231) passes through the connecting hole (221) and is threadedly connected to the limiting nut (24) provided in the cavity (222).

4. A pipe fitting tightening tool according to claim 2, characterized in that: The second chuck (23) has a insertion hole (232) at the center of the end face corresponding to the socket (11). A rubber block (25) is provided in the insertion hole (232) to engage with it. The end face diameter of the rubber block (25) is not greater than the end face diameter of the second chuck (23).

5. A pipe fitting tightening tool according to claim 4, characterized in that: The outer end of the adhesive card block (25) is provided with a concave arc-shaped card groove (251), and the arc structure of the card groove (251) matches the arc structure of the inner wall of the socket hole (11).

6. A pipe fitting tightening tool according to claim 1, characterized in that: The guide positioning hole (13) is a threaded hole, and the clamping rod (2) is threadedly engaged with the guide positioning hole (13).

7. A pipe fitting tightening tool according to claim 1, characterized in that: The socket (11) is a round hole.

8. A pipe fitting tightening tool according to claim 1, characterized in that: The socket (11) is a "U" shaped hole, one end of which passes through the outer side of the first clamp (1).

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