Pipe welding pliers with adjustable clamping opening
By designing an adjustable clamp pipe welding clamp, and utilizing a combination of adjustment and fixing components, the problem of carrying and storage difficulties caused by the fixed clamp size in existing technologies has been solved, enabling stable clamping and efficient welding of pipe fittings of different diameters.
Patent Information
- Application Number
- CN202520192249.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The existing pipe welding clamps have fixed clamp sizes, which cannot accommodate pipes of different diameters, resulting in the need to carry multiple welding clamps, increasing the burden and storage difficulty.
An adjustable clamp pipe welding clamp was designed. Through the cooperation of the adjustment component and the fixing component, stable clamping of pipes of different diameters can be achieved. The combination of structures such as bearing seat, bidirectional threaded rod, screw block, internal threaded block, slide plate, fixing box, pressing block, pawl and knob can be used to achieve rapid adjustment of the clamp.
It achieves stable clamping of pipes of different diameters, avoids slippage and displacement during welding, reduces the burden of carrying multiple welding clamps, and improves welding efficiency.
Smart Images
Figure CN223734267U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to welding technical field, and specifically relates to a pipe welding tongs with adjustable clamping opening. BACKGROUND
[0002] The pipe welding tongs with adjustable clamping opening is a tool specially designed for welding pipes, and the main feature is that the clamping opening can be adjusted to adapt to pipes of different diameters. Through accurate adjustment of the clamping opening during pipe welding and maintenance, the stability and fixation of the pipe during the welding process can be ensured, the risk of sliding and displacement is reduced, and the safety and quality of welding are improved.
[0003] In the prior art, some pipe welding tongs only have a fixed clamping opening size, which results in that they can only adapt to pipe fittings of a specific diameter. This problem may cause workers to replace welding tongs with a clamping opening size corresponding to the pipe fitting when welding pipe fittings of different diameters, which may require the workers to carry multiple pipe welding tongs with different clamping opening sizes. This not only increases the load to be carried, but also occupies more storage space for the multiple welding tongs, increasing the difficulty of storage and management. SUMMARY
[0004] The utility model aims at providing a pipe welding tongs with adjustable clamping opening, which aims to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A pipe welding tongs with adjustable clamping opening, comprising a bearing mechanism, an installation box fixedly installed at the end face of the installation seat, and a groove opened at the top of the installation seat;
[0007] A clamping mechanism, comprising an adjusting assembly arranged in the inner cavity of the installation box, a positioner cooperating with the adjusting assembly, and a fixing assembly arranged at the output end of the adjusting assembly.
[0008] As a preferred scheme of the utility model, the adjusting assembly comprises a bearing seat fixedly installed on the inner wall of the installation box, a bidirectional threaded rod rotatably connected to the inner wall of the bearing seat, a rotating block fixedly connected to the other end of the bidirectional threaded rod, internally threaded blocks threadedly connected on both sides of the surface of the bidirectional threaded rod, and a sliding plate fixedly installed on the top of the internally threaded blocks.
[0009] As a preferred scheme of the utility model, the bottom of the sliding plate is in sliding contact with the inner wall of the groove, and the width of the sliding plate is slightly smaller than the width of the groove. The end of the bidirectional threaded rod away from the bearing seat extends through to the outside of the installation box, and a bearing sleeve is arranged at the connection between the bidirectional threaded rod and the installation box.
[0010] As a preferred scheme of the utility model, the fixed assembly includes a fixed box fixedly installed on the top of the sliding plate, an extrusion block arranged in the inner cavity of the fixed box, a rack fixedly installed on the outer surface of the extrusion block, a pawl rotationally connected to the surface of the extrusion block, a first spring fixedly connected to the surface of the pawl, a fixed block fixedly connected to the other end of the first spring, and a knob fixedly installed on the outer surface of the pawl.
[0011] As a preferred scheme of the utility model, the fixed assembly further includes a limiting block rotationally connected to the inner wall of the fixed box through a bearing, a second spring fixedly connected to the outer surface of the limiting block, a connecting column arranged in the inner cavity of the fixed box, a limiting slot opened in the inner surface of the connecting column, an arc-shaped clamping plate fixedly installed on the end of the connecting column, a third spring fixedly connected to the inner surface of the fixed box, and a sliding column fixedly connected to the other end of the third spring.
[0012] As a preferred scheme of the utility model, the pawl is engaged with the teeth on the surface of the rack, the knob extends through the outer surface of the fixed box, the limiting block is in elastic contact with the surface of the extrusion block, and the other end of the second spring is fixedly connected to the inner surface of the fixed box.
[0013] As a preferred scheme of the utility model, the connecting column is in sliding contact with the inner surface of the fixed box, the limiting block is used in cooperation with the limiting slot, and the end surface of the sliding column is in elastic contact with the surface of the connecting column.
[0014] Compared with the prior art, the utility model has the beneficial effects that: the pipe fittings to be welded can be clamped and fixed through the cooperation of the adjusting assembly and the fixed assembly, the risk of sliding and displacement during welding is avoided, the fixed assembly can be quickly replaced with clamps of different sizes, the staff can quickly work after replacing the clamps, the burden of carrying multiple pipe welding tongs of different sizes is reduced, and the efficiency of the staff during welding is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor. Among them:
[0016] Fig. 1 It is the overall structure schematic view of the utility model;
[0017] Fig. 2 It is the internal structure schematic view of the utility model mounting box;
[0018] Fig. 3 It is the fixed box internal structure schematic view of the utility model;
[0019] Fig. 4 It is the fixed assembly partial structure schematic view of the utility model.
[0020] In the figure: 100, bearing mechanism;101, mounting seat;102, mounting box;103, groove;200, clamping mechanism;201, adjusting assembly;201a, bearing seat;201b, two-way threaded rod;201c, rotating block;201d, internal threaded block;201e, sliding plate;202, positioner;203, fixed assembly;203a, fixed box;203b, extrusion block;203c, rack;203d, pawl;203e, first spring;203f, fixed block;203g, knob;203h, limiting block;203i, second spring;203j, connecting column;203k, limiting groove;203l, arc clamping plate;203m, third spring;203n, sliding column. DETAILED DESCRIPTION
[0021] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is described in detail below with the help of the attached drawings of the specification.
[0022] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from the description herein, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.
[0023] Secondly, the "one embodiment" or "embodiment" referred to here means that specific features, structures or characteristics can be included in at least one implementation of the utility model. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.
[0024] Embodiment
[0025] Reference Figs. 1-4 For the embodiment of the utility model, the embodiment provides a pipe welding tongs with adjustable clamping opening, which comprises,
[0026] The bearing mechanism 100 comprises a mounting seat 101, a mounting box 102 fixedly mounted at the end face of the mounting seat 101, and a groove 103 opened at the top of the mounting seat 101;
[0027] The clamping mechanism 200 comprises an adjusting assembly 201 arranged in the inner cavity of the mounting box 102, a positioner 202 used in cooperation with the adjusting assembly 201, and a fixing assembly 203 arranged at the output end of the adjusting assembly 201.
[0028] The inner surface of the locker 103 is connected with an arc-shaped friction plate. The pressing can limit the output end of the adjusting assembly 201, and the pulling can release the limitation, so as to avoid the loosening of the clamping caused by the accidental touch of the rotating block 201c.
[0029] Specifically, the adjusting assembly 201 comprises a bearing seat 201a fixedly installed on the inner wall of the mounting box 102, a bidirectional threaded rod 201b rotationally connected with the inner wall of the bearing seat 201a, a rotating block 201c fixedly connected with the other end of the bidirectional threaded rod 201b, inner threaded blocks 201d threadedly connected on both sides of the surface of the bidirectional threaded rod 201b, and a sliding plate 201e fixedly installed on the top of the inner threaded blocks 201d.
[0030] Further, the bottom of the sliding plate 201e is in sliding contact with the inner wall of the groove 103, and the width of the sliding plate 201e is slightly smaller than the width of the groove 103. The end of the bidirectional threaded rod 201b away from the bearing seat 201a extends to the outside of the mounting box 102, and a bearing sleeve is arranged at the connection between the bidirectional threaded rod 201b and the mounting box 102.
[0031] Still further, the fixing assembly 203 comprises a fixing box 203a fixedly installed on the top of the sliding plate 201e, an extrusion block 203b arranged in the inner cavity of the fixing box 203a, a rack 203c fixedly installed on the outer surface of the extrusion block 203b, a ratchet pawl 203d rotationally connected with the surface of the extrusion block 203b, a first spring 203e fixedly connected with the surface of the ratchet pawl 203d, a fixing block 203f fixedly connected with the other end of the first spring 203e, and a knob 203g fixedly installed on the outer surface of the ratchet pawl 203d.
[0032] It should be noted that the ratchet pawl 203d can be quickly locked and released by rotating the knob 203g, and the first spring 203e ensures that the ratchet pawl 203d can be automatically reset to the locked state after being released.
[0033] Still further, the fixing assembly 203 further comprises a limiting block 203h rotationally connected with the inner wall of the fixing box 203a through a bearing, a second spring 203i fixedly connected with the outer surface of the limiting block 203h, a connecting column 203j arranged in the inner cavity of the fixing box 203a, a limiting groove 203k opened on the inner surface of the connecting column 203j, an arc-shaped clamping plate 203l fixedly installed on the end of the connecting column 203j, a third spring 203m fixedly connected with the inner surface of the fixing box 203a, and a sliding column 203n fixedly connected with the other end of the third spring 203m.
[0034] The connecting column 203j is integrally designed with the arc-shaped clamping plate 203l, which is convenient to replace when welding pipe fittings of different sizes, and the second spring 203i provides a buffering force to prevent the arc-shaped clamping plate 203l from damaging the pipe fitting due to excessive extrusion force.
[0035] Preferably, the pawl 203d is engaged with the teeth on the surface of the rack 203c, the knob 203g extends through the outer surface of the fixed box 203a, the limiting block 203h is in elastic contact with the surface of the extrusion block 203b, and the other end of the second spring 203i is fixedly connected to the inner surface of the fixed box 203a.
[0036] It should be noted that the connecting column 203j is in sliding contact with the inner surface of the fixed box 203a, the limiting block 203h is used in cooperation with the limiting groove 203k, and the end surface of the sliding column 203n is in elastic contact with the surface of the connecting column 203j.
[0037] During installation: manually twist the knob 203g, the knob 203g drives the pawl 203d to release the limiting of the rack 203c, the connecting column 203j is inserted into the fixed box 203a, the limiting block 203h limits the connecting column 203j during the sliding process, the knob 203g is loosened, the first spring 203e drives the pawl 203d to lock with the rack 203c due to the acting force, the knob 203g is manually rotated again, the knob 203g drives the bidirectional threaded rod 201b to rotate, the bidirectional threaded rod 201b drives the internally threaded block 201d to move towards the pipe fitting, the internally threaded block 201d drives the sliding plate 201e to move, and at the same time drives the fixed assembly 203 to clamp the pipe fitting, after clamping stably, the positioner 202 is pressed to lock the knob 203g.
[0038] When the size of the arc-shaped clamping plate 203l needs to be replaced for pipe fittings of different diameters: pull out the positioner 202, manually reverse rotate the knob 201c, the knob 201c drives the bidirectional threaded rod 201b to rotate, the bidirectional threaded rod 201b drives the internally threaded block 201d to move away from the pipe fitting, the internally threaded block 201d drives the sliding plate 201e to move, the sliding plate 201e drives the fixed assembly 203 to move, the knob 203g is manually rotated again, the knob 203g drives the pawl 203d to release the limiting of the rack 203c, the extrusion block 203b is pressed, the extrusion block 203b presses down the limiting block 203h due to the force, the limiting block 203h rotates and releases the limiting of the connecting column 203j, the connecting column 203j is popped out under the action of the third spring 203m, and at the same time, the arc-shaped clamping plate 203l of the corresponding size can be replaced.
[0039] In summary, by adjusting the cooperation between the assembly 201 and the fixing assembly 203, the pipe to be welded can be clamped and fixed, the risk of sliding and displacement during welding is avoided, and the fixing assembly 203 can be quickly replaced with arc-shaped clamping plates 203l of different sizes, facilitating the quick operation of the staff after replacing the arc-shaped clamping plates 203l, reducing the burden of the staff carrying multiple pipe welding tongs of different sizes, and ensuring the efficiency of the staff during welding.
[0040] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to the scope of the appended claims.
[0041] Furthermore, in the interest of providing a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those unrelated to the best mode of practicing the present application, or those that are well known in the art).
[0042] It should be understood that numerous specific implementations can be made within the scope of the present application, and that the general description described above and the specific examples described below are not intended to limit the application to a specific embodiment but rather only to explain how to make and use the application. It should also be understood that many modifications, variations, and changes in detail can be made to the described embodiments while still falling within the scope of the application. It is intended that the scope of the application encompass these and all such changes and modifications.
[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.
Claims
1. An adjustable jaw pipe welding tongs characterized by: The utility model relates to a bearing mechanism (100) and clamping mechanism (200), and the bearing mechanism (100) comprises a mounting seat (101), a mounting box (102) fixedly installed at the end face of the mounting seat (101) and a groove (103) opened in the top of the mounting seat (101). The clamping mechanism (200) comprises an adjusting assembly (201) arranged in the inner cavity of the mounting box (102), a positioner (202) matched with the adjusting assembly (201) and a fixing assembly (203) arranged at the output end of the adjusting assembly (201). The adjusting assembly (201) comprises a bearing seat (201a) fixedly installed on the inner wall of the mounting box (102), a bidirectional threaded rod (201b) rotationally connected with the inner wall of the bearing seat (201a), a rotating block (201c) fixedly connected with the other end of the bidirectional threaded rod (201b), an internal threaded block (201d) screwedly connected on both sides of the surface of the bidirectional threaded rod (201b) and a sliding plate (201e) fixedly installed on the top of the internal threaded block (201d).
2. A pipe welding tongs with adjustable jaws according to claim 1, characterized in that: The bottom of the sliding plate (201e) is in sliding contact with the inner wall of the groove (103), the width of the sliding plate (201e) is slightly smaller than the width of the groove (103), the end of the bidirectional threaded rod (201b) away from the bearing seat (201a) extends to the outside of the mounting box (102) and a bearing sleeve is arranged at the connection between the bidirectional threaded rod (201b) and the mounting box (102).
3. A pipe welding tongs with adjustable jaws according to claim 2, characterized in that: The fixing assembly (203) comprises a fixing box (203a) fixedly installed on the top of the sliding plate (201e), an extrusion block (203b) arranged in the inner cavity of the fixing box (203a), a rack (203c) fixedly installed on the outer surface of the extrusion block (203b), a ratchet pawl (203d) rotationally connected with the surface of the extrusion block (203b), a first spring (203e) fixedly connected with the surface of the ratchet pawl (203d), a fixing block (203f) fixedly connected with the other end of the first spring (203e) and a knob (203g) fixedly installed on the outer surface of the ratchet pawl (203d).
4. A pipe welding tongs with adjustable jaws according to claim 3, characterized in that: The fixing assembly (203) further comprises a limiting block (203h) rotationally connected with the inner wall of the fixing box (203a) through a bearing, a second spring (203i) fixedly connected with the outer surface of the limiting block (203h), a connecting column (203j) arranged in the inner cavity of the fixing box (203a), a limiting groove (203k) opened in the inner surface of the connecting column (203j), an arc-shaped clamping plate (203l) fixedly installed at the end of the connecting column (203j), a third spring (203m) fixedly connected with the inner surface of the fixing box (203a) and a sliding column (203n) fixedly connected with the other end of the third spring (203m).
5. A pipe welding tongs with adjustable jaws according to claim 4, characterized in that: 6. A pipe welding tongs with adjustable jaws according to claim 5, characterized in that: The pawl (203d) is engaged with the teeth of the rack (203c) surface, the knob (203g) extends through the outer surface of the fixed box (203a), the limiting block (203h) is in elastic contact with the surface of the extrusion block (203b), and the other end of the second spring (203i) is fixedly connected to the inner surface of the fixed box (203a).
7. A pipe welding tongs with adjustable jaws according to claim 6, characterized in that: The connecting column (203j) is in sliding contact with the inner surface of the fixed box (203a), the limiting block (203h) is used in cooperation with the limiting groove (203k), and the end surface of the sliding column (203n) is in elastic contact with the surface of the connecting column (203j).