Pipe wrench device for maintenance

Abstract

The utility model provides a pipe wrench device for maintenance. The pipe wrench device comprises a clamping mechanism, a supporting mechanism and a U-shaped frame, and a connecting shaft is arranged between a left side plate and a right side plate of the U-shaped frame. The clamping mechanism comprises a limiting block, a first moving block, a second moving block, a first connecting block and a second connecting block, through holes used for being in sliding fit with the connecting shaft are formed in the middle positions of the two moving blocks, and arc-shaped clamping plates are arranged on the inner wall faces of the upper ends of the two moving blocks; a groove is formed in the upper end of the limiting block, and two long-strip-shaped holes are oppositely formed in each of a front side plate and a rear side plate of the groove; the upper ends of the two connecting blocks are rotationally connected with the lower ends of the two moving blocks correspondingly, sliding columns used for being in sliding fit with the long-strip-shaped holes are arranged on the front side and the rear side of the lower end of the first connecting block and the front side and the rear side of the lower end of the second connecting block correspondingly, and each sliding column is in threaded connection with a locking nut. The limiting block is connected with the U-shaped frame through a supporting mechanism. According to the utility model, the outer surface of the pipe fitting is not easy to damage, and the service life of the pipe fitting is well ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance tools, and in particular relates to a pipe clamp device for maintenance. Background Art

[0002] When the existing chain type pipe clamp is working, the non-articulated end of the chain is free and not fixed or articulated with the clamp handle. The clamping and rotation of the pipe fitting is achieved by the friction between the pipe fitting and the chain wrapped around it. This makes it easy for the chain to damage the surface of the pipe fitting and produce indentations, resulting in a reduction in the service life of the pipe fitting. Therefore, how to design a maintenance pipe clamp device so that the surface of the pipe fitting is not easily damaged and the service life of the pipe fitting is guaranteed has become a technical problem that technicians in this field need to solve urgently. Utility Model Content

[0003] The utility model aims to provide a pipe clamp device for maintenance to solve the above technical problems in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A pipe clamp device for maintenance, comprising a clamping mechanism, a supporting mechanism, and a U-shaped frame, wherein the upper ends of the left and right plates of the U-shaped frame are connected by a connecting shaft; the clamping mechanism comprises a limit block, a first movable block, a second movable block, a first connecting block, and a second connecting block, wherein the middle positions of the first movable block and the second movable block are both provided with through holes for slidingly cooperating with the connecting shaft, and the first movable block and the second movable block are respectively located on the left and right sides of the opening of the U-shaped frame; a first arc-shaped clamping plate is provided on the inner wall surface of the upper end of the first movable block, and a second arc-shaped clamping plate is provided on the inner wall surface of the upper end of the second movable block, and the first arc-shaped clamping plate is arranged opposite to the second arc-shaped clamping plate; a groove is provided on the upper end of the limit block for accommodating the lower ends of the first connecting block and the second connecting block, a first elongated hole is provided on the left side of the front side plate of the groove, and a second elongated hole opposite to the first elongated hole is provided on the left side of the rear side plate of the groove The locking plate is configured to lock the bottom end of the second sliding plate and the bottom end of the second sliding plate, wherein the locking plate has a first end and a second end, and the locking plate has a second end.

[0006] Preferably, the supporting mechanism comprises a first supporting column, a second supporting column and a lifting plate, the upper end of the first supporting column is vertically connected to the left side of the lower side surface of the limiting block, the lower end of the first supporting column passes through a first through hole provided on the left side of the bottom plate of the U-shaped frame and is vertically connected to the left side of the top surface of the lifting plate; the upper end of the second supporting column is vertically connected to the right side of the lower side surface of the limiting block, the lower end of the second supporting column passes through a second through hole provided on the right side of the bottom plate of the U-shaped frame and is vertically connected to the right side of the top surface of the lifting plate.

[0007] Preferably, the first support column and the second support column are both studs, the first support column is threadedly connected with a first fastening nut, the second support column is threadedly connected with a second fastening nut, and the first fastening nut and the second fastening nut are both located between the bottom plate of the U-shaped frame and the lifting plate; the left and right plates of the U-shaped frame are vertically provided with fifth elongated holes, and the two ends of the connecting shaft are respectively slidably matched with the two fifth elongated holes.

[0008] Preferably, the lifting plate is a rectangular flat plate structure.

[0009] Preferably, the left end and the right end of the lifting plate are both semicircular plates.

[0010] Preferably, a first U-shaped opening is provided at the upper end of the first connecting block, and the lower end of the first movable block is rotatably set in the first U-shaped opening through a first mounting shaft; a second U-shaped opening is provided at the upper end of the second connecting block, and the lower end of the second movable block is rotatably set in the second U-shaped opening through a second mounting shaft.

[0011] Preferably, a first arc-shaped groove is provided on the inner wall surface of the upper end of the first moving block for matching with the outer wall surface of the first arc-shaped clamping plate, and a second arc-shaped groove is provided on the inner wall surface of the upper end of the second moving block for matching with the outer wall surface of the second arc-shaped clamping plate.

[0012] The beneficial effects of the utility model are:

[0013] The pipe clamp device for maintenance of the utility model, when in use, makes the first connecting block and the second connecting block approach each other, drives the first moving block and the second moving block to slide along the connecting shaft and approach each other, until the first arc-shaped clamping plate and the second arc-shaped clamping plate are tightly attached to the outer surface of the pipe fitting, and then tightens the locking nuts on each sliding column, so that the first connecting block and the second connecting block can be fixed on the limit block, and the first connecting block, the second connecting block, the first moving block and the second moving block are prevented from moving again, thereby achieving the clamping of the pipe fitting. It can be seen that the surfaces of the first arc-shaped clamping plate and the second arc-shaped clamping plate in the utility model that contact the pipe fitting are both arc-shaped surfaces, so that when the pipe fitting is clamped, its outer surface is not easily damaged, and the service life of the pipe fitting is better guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present utility model in detail in conjunction with the drawings, wherein

[0015] Figure 1 A schematic diagram of a pipe clamp device for maintenance provided by an embodiment of the utility model;

[0016] Figure 2 A cross-sectional view of a maintenance pipe clamp device provided by an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the connection shaft provided in an embodiment of the utility model when it cooperates with the first moving block and the second moving block;

[0018] Figure 4 A schematic diagram of the connection between the limit block and the support mechanism provided in an embodiment of the utility model.

[0019] Markings in the accompanying drawings:

[0020] 101, U-shaped frame; 201, connecting shaft, 202, first moving block,

[0021] 203, the lower end of the first moving block, 204, the upper end of the first moving block,

[0022] 205, first arc-shaped clamping plate, 206, first connecting block, 207, first sliding column,

[0023] 208, first mounting axis, 209, fifth elongated hole, 210, groove,

[0024] 211, first long strip hole, 212, second long strip hole, 213, third long strip hole,

[0025] 214, fourth long strip hole; 301, second mounting shaft, 302, second connecting block,

[0026] 303, third sliding column, 304, limit block, 305, locking nut, 306, second supporting column,

[0027] 307, lifting plate, 308, first fastening nut, 309, second fastening nut,

[0028] 310, second moving block, 311, second arc-shaped clamping plate, 312, second U-shaped opening,

[0029] 313. The first support column. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the utility model, the solution will be further described in detail below in conjunction with specific embodiments.

[0031] like Figures 1 to 4As shown, the embodiment of the utility model provides a maintenance pipe clamp device, which includes a clamping mechanism, a supporting mechanism, and a U-shaped frame 101. The upper ends of the left and right plates of the U-shaped frame 101 are connected by a connecting shaft 201; the clamping mechanism includes a limit block 304, a first moving block 202, a second moving block 310, a first connecting block 206 and a second connecting block 302, and the middle positions of the first moving block and the second moving block are both provided with through holes for slidingly cooperating with the connecting shaft, and the first moving block and the second moving block are respectively located at The left and right sides of the opening of the U-shaped frame 101; a first arc-shaped clamping plate 205 is provided on the inner wall surface of the upper end 204 of the first moving block, and a second arc-shaped clamping plate 311 is provided on the inner wall surface of the upper end of the second moving block, and the first arc-shaped clamping plate and the second arc-shaped clamping plate are arranged opposite to each other; the upper end of the limit block 304 is provided with a groove 210 for accommodating the lower ends of the first connecting block and the second connecting block, and the left side of the front side plate of the groove is provided with a first long strip hole 211, and the left side of the rear side plate of the groove is provided with a hole corresponding to the first The second elongated hole 212 is opposite to the elongated hole; the upper end of the first connecting block 206 is rotatably connected to the lower end 203 of the first moving block, and a first sliding column 207 for slidingly cooperating with the first elongated hole is provided on the front side of the lower end of the first connecting block, and a second sliding column for slidingly cooperating with the second elongated hole is provided on the rear side of the lower end of the first connecting block; a third elongated hole 213 is provided on the right side of the front side plate of the groove, and a fourth elongated hole 213 is provided on the right side of the rear side plate of the groove, which is opposite to the third elongated hole 14. The upper end of the second connecting block 302 is rotatably connected to the lower end of the second moving block 310. A third sliding column 303 for slidingly cooperating with the third elongated hole is provided on the front side surface of the lower end of the second connecting block. A fourth sliding column for slidingly cooperating with the fourth elongated hole is provided on the rear side surface of the lower end of the second connecting block. Locking nuts 305 are threadedly connected to the first sliding column, the second sliding column, the third sliding column and the fourth sliding column. The limit block 304 is connected to the U-shaped frame through the supporting mechanism.

[0032] The pipe clamp device for maintenance provided by the embodiment of the utility model, when in use, makes the first connecting block 206 and the second connecting block 302 approach each other, driving the first moving block and the second moving block to slide along the connecting shaft and approach each other, until the first arc-shaped clamping plate 205 and the second arc-shaped clamping plate 311 are respectively tightly attached to the two sides of the outer surface of the pipe fitting, and then tightening the locking nuts on each sliding column, the first connecting block and the second connecting block can be fixed on the limit block, preventing the first connecting block, the second connecting block, the first moving block and the second moving block from moving again, thereby achieving the clamping of the pipe fitting. It can be seen that the surfaces of the first arc-shaped clamping plate and the second arc-shaped clamping plate in the utility model that contact the pipe fitting are both arc-shaped surfaces, so that when the pipe fitting is clamped, its outer surface is not easily damaged, and the service life of the pipe fitting is better guaranteed.

[0033] Furthermore, the support mechanism includes a first support column 313, a second support column 306 and a lifting plate 307, wherein the upper end of the first support column is vertically connected to the left side of the lower side of the limit block, and the lower end of the first support column is vertically connected to the left side of the top surface of the lifting plate after passing through a first through hole set on the left side of the bottom plate of the U-shaped frame; the upper end of the second support column is vertically connected to the right side of the lower side of the limit block, and the lower end of the second support column is vertically connected to the right side of the top surface of the lifting plate after passing through a second through hole set on the right side of the bottom plate of the U-shaped frame. This solution makes the structure of the support mechanism relatively simple, and can better support the limit block and the U-shaped frame.

[0034] Specifically, the first support column and the second support column are both studs, the first support column is threadedly connected with a first fastening nut 308, the second support column is threadedly connected with a second fastening nut 309, and the first fastening nut and the second fastening nut are both located between the bottom plate of the U-shaped frame and the lifting plate; the left and right plates of the U-shaped frame 101 are vertically provided with fifth elongated holes 209, and the two ends of the connecting shaft are respectively slidably matched with the two fifth elongated holes. With this solution, the lifting plate 307 can be used to pull the first support column and the second support column up and down, that is, to move in the vertical direction, and the limit block, each connecting block and each moving block can be used to drive the connecting shaft to move up and down along the fifth elongated hole, so that the use height of the pipe clamp device can be changed, and thus it can better meet the use requirements of different heights. It can be understood that after the first support column and the second support column move up and down into position, the first fastening nut and the second fastening nut can be used to block the bottom plate of the U-shaped frame, so that the position of the limit block, each connecting block, each moving block and the connecting shaft is fixed and no longer moves, and at the same time, the length of the two support columns in the U-shaped frame is fixed; the extension direction of the above-mentioned each long strip hole is the same as the extension direction of the limit block, and both extend in the horizontal direction, that is, along Figure 1 Extends in the left-right direction.

[0035] Preferably, the first arc-shaped clamping plate 205 is detachably connected to the inner wall surface of the upper end of the first moving block, and the second arc-shaped clamping plate 311 is detachably connected to the inner wall surface of the upper end of the second moving block, so that the first arc-shaped clamping plate and the second arc-shaped clamping plate of different sizes can be replaced according to the different outer diameters of the pipe fittings, thereby making the pipe clamp device more versatile. The middle position of the outer wall surface of the first arc-shaped clamping plate can be provided with a first mounting groove for accommodating the inner side of the upper end of the first moving block, and the middle position of the outer wall surface of the second arc-shaped clamping plate can be provided with a second mounting groove for accommodating the inner side of the upper end of the second moving block, so that the limiting effect of the above two mounting grooves can be used to make the connection between each arc-shaped clamping plate and each moving block more stable and reliable.

[0036] It can be understood that each of the above-mentioned sliding columns can be a stud to facilitate threaded cooperation with each locking nut; the first connecting block and the second connecting block are both arranged to be inclined outward; and limiting members can be provided at both ends of the connecting shaft to effectively prevent the connecting shaft from slipping off the U-shaped frame.

[0037] Specifically, the lifting plate 307 is a rectangular flat plate structure, so that the structure of the lifting plate is relatively simple.

[0038] Preferably, the left and right ends of the lifting plate 307 are both semicircular plates, so as to avoid scratches to maintenance personnel.

[0039] Furthermore, a first U-shaped opening is provided at the upper end of the first connecting block 206, and the lower end of the first moving block is rotatably set in the first U-shaped opening through the first mounting shaft 208; a second U-shaped opening 312 is provided at the upper end of the second connecting block, and the lower end of the second moving block is rotatably set in the second U-shaped opening through the second mounting shaft 301, thereby better realizing the rotational connection between the first connecting block and the first moving block, and the rotational connection between the second connecting block and the second moving block.

[0040] Specifically, a first arc-shaped groove is provided on the inner wall surface of the upper end 204 of the first movable block for matching with the outer wall surface of the first arc-shaped clamping plate, and a second arc-shaped groove is provided on the inner wall surface of the upper end of the second movable block 310 for matching with the outer wall surface of the second arc-shaped clamping plate, thereby conveniently realizing the connection between the first arc-shaped clamping plate and the first movable block, and the connection between the second arc-shaped clamping plate and the second movable block.

[0041] Preferably, a plurality of anti-skid grooves are evenly distributed on the inner wall surfaces of the first arc-shaped clamping plate 205 and the second arc-shaped clamping plate 311, respectively, so that they can play a better anti-skid role, thereby ensuring the stability of clamping and improving the safety during maintenance.

[0042] The utility model can clamp and rotate not only metal pipe fittings, but also ceramic pipe fittings, thin-wall pipe fittings, plastic pipe fittings and the like without causing bite marks and damaging the outer surface of the pipe fittings.

[0043] The above are only preferred implementation modes of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in the field can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A pipe clamp device for maintenance, characterized in that: The invention relates to a U-shaped frame, wherein the upper ends of the left and right plates of the U-shaped frame are connected by a connecting shaft; the clamping mechanism comprises a limit block, a first movable block, a second movable block, a first connecting block and a second connecting block, wherein the middle positions of the first movable block and the second movable block are provided with through holes for slidingly cooperating with the connecting shaft, and the first movable block and the second movable block are respectively located on the left and right sides of the opening of the U-shaped frame; a first arc-shaped clamping plate is provided on the inner wall surface of the upper end of the first movable block, and a second arc-shaped clamping plate is provided on the inner wall surface of the upper end of the second movable block, and the first arc-shaped clamping plate is arranged opposite to the second arc-shaped clamping plate; a groove is provided on the upper end of the limit block for accommodating the lower ends of the first connecting block and the second connecting block, a first elongated hole is provided on the left side of the front side plate of the groove, and a second elongated hole opposite to the first elongated hole is provided on the left side of the rear side plate of the groove; the first The top end of the second connecting block is rotatably connected to the lower end of the second moving block, and the front side surface of the lower end of the second connecting block is provided with a first sliding post that slidably cooperates with the first elongated hole, and the rear side surface of the lower end of the first connecting block is provided with a second sliding post that slidably cooperates with the second elongated hole; the right side of the front side plate of the groove is provided with a third elongated hole, and the right side of the rear side plate of the groove is provided with a fourth elongated hole opposite to the third elongated hole. The upper end of the second connecting block is rotatably connected to the lower end of the second moving block, and the front side surface of the lower end of the second connecting block is provided with a third sliding post that slidably cooperates with the third elongated hole, and the rear side surface of the lower end of the second connecting block is provided with a fourth sliding post that slidably cooperates with the fourth elongated hole; the first sliding post, the second sliding post, the third sliding post and the fourth sliding post are all threadedly connected with a locking nut; the limit block is connected to the U-shaped frame through the supporting mechanism.

2. The maintenance pipe clamp device according to claim 1, characterized in that: The supporting mechanism includes a first supporting column, a second supporting column and a lifting plate, the upper end of the first supporting column is vertically connected to the left side of the lower side surface of the limiting block, the lower end of the first supporting column passes through a first through hole set on the left side of the bottom plate of the U-shaped frame and is vertically connected to the left side of the top surface of the lifting plate; the upper end of the second supporting column is vertically connected to the right side of the lower side surface of the limiting block, the lower end of the second supporting column passes through a second through hole set on the right side of the bottom plate of the U-shaped frame and is vertically connected to the right side of the top surface of the lifting plate.

3. The maintenance pipe clamp device according to claim 2, characterized in that: The first support column and the second support column are both studs, the first support column is threadedly connected with a first fastening nut, the second support column is threadedly connected with a second fastening nut, the first fastening nut and the second fastening nut are both located between the bottom plate of the U-shaped frame and the lifting plate; the left plate and the right plate of the U-shaped frame are vertically provided with a fifth elongated hole, and the two ends of the connecting shaft are respectively slidably matched with the two fifth elongated holes.

4. The maintenance pipe clamp device according to claim 2, characterized in that: The lifting plate is a rectangular flat plate structure.

5. The maintenance pipe clamp device according to claim 4, characterized in that: The left end and the right end of the lifting plate are both semicircular plates.

6. The maintenance pipe clamp device according to claim 1, characterized in that: A first U-shaped opening is provided at the upper end of the first connecting block, and the lower end of the first moving block is rotatably set in the first U-shaped opening through a first mounting shaft; a second U-shaped opening is provided at the upper end of the second connecting block, and the lower end of the second moving block is rotatably set in the second U-shaped opening through a second mounting shaft.

7. The maintenance pipe clamp device according to any one of claims 1 to 6, characterized in that: A first arcuate groove is provided on the inner wall surface of the upper end of the first moving block for matching with the outer wall surface of the first arcuate clamping plate, and a second arcuate groove is provided on the inner wall surface of the upper end of the second moving block for matching with the outer wall surface of the second arcuate clamping plate.

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