CN114310763B

CN114310763B - Quick adjustable pipe wrench

Info

Publication number: CN114310763B
Application number: CN202210249801.6A
Authority: CN
Inventors: 董鹏
Original assignee: Zhaoyuan Hongrun Machinery Manufacturing Co ltd
Current assignee: Zhaoyuan Hongrun Machinery Manufacturing Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-05-27
Anticipated expiration: 2042-03-15
Also published as: CN114310763A

Abstract

The invention discloses a quick-adjustable shifting union wrench, and relates to the technical field of pipeline caliper equipment. Including main tong bar, the below of main tong bar is provided with supplementary tong bar, the head of main tong bar is provided with first centre gripping subassembly, be provided with drive assembly and adjusting part in the main tong bar, the one end of supplementary tong bar is provided with second centre gripping subassembly, first arc wall and second arc wall have been seted up at the middle part of supplementary tong bar, through the cooperation of first arc wall, adjusting part and adjustment subassembly, can realize that first centre gripping subassembly is to the self-holding of pipe fitting, remove and press from both sides tightly, do not need the frequent interval between two first splint of regulation of staff, simplified work step, improved work efficiency.

Description

Quick adjustable pipe wrench

Technical Field

The invention relates to the technical field of pipeline caliper equipment, in particular to a quick-adjustable shifting pipe wrench.

Background

The pipe wrench is widely used in work and life as an essential tool for assembling and disassembling pipe fittings.

The Chinese patent with the publication number of CN111745579A in the prior art discloses a lockable self-adaptive shifting wrench, which comprises a fixed wrench, a connecting clamping groove and a movable wrench, wherein one side of the top end of the fixed wrench is movably connected with the movable wrench through the connecting clamping groove, one side of the top end of the fixed wrench is fixedly provided with a sealing sleeve, and one end of a movable connecting rod penetrates through and extends to the bottom of an inner cavity of the sealing sleeve and is movably sleeved with the inner wall of the movable connecting rod. The lockable self-adaptive shifting spanner has the advantages that the internal structure of the locking piston and the position relation between the internal structure of the locking piston and the opening of the hydraulic flow groove are set, when the self-adaptive shifting spanner clamps steel pipes of different types and sizes, the opening above the hydraulic flow groove can be automatically blocked when the locking piston moves to the highest position, stable and effective clamping force is provided for the steel pipes between the fixed spanner and the movable spanner, and the stability and the reliability of the self-adaptive shifting spanner are further improved.

However, the above prior art has the following disadvantages:

(1) the pipe wrench cannot adapt to narrow operating environments, for example, when a pipe fitting close to a wall is assembled, the pipe wrench cannot rotate at a large angle, and frequent opening adjustment of the pipe wrench is not convenient;

(2) when the pipe fittings with different diameters are clamped and disassembled due to rusting or other reasons, the diameter fluctuation range of each part of the pipe fittings is large, the clamping effect on the pipe fittings can not be guaranteed, and the using effect of the pipe wrench can be influenced.

Disclosure of Invention

The invention aims to provide a quick-adjustable shifting pipe wrench, which solves the technical problems that the pipe wrench in the prior art cannot adapt to a narrow operating environment and has poor clamping effect on a rusted pipe fitting.

The invention provides a quick-adjustable shifting pipe wrench, which comprises a main wrench rod, wherein an auxiliary wrench rod is arranged below the main wrench rod, the head of the main wrench rod is provided with a first clamping assembly, a transmission assembly and an adjusting assembly are arranged in the main wrench rod, one end of the auxiliary wrench rod is provided with a second clamping assembly, the middle part of the auxiliary wrench rod is provided with a first arc-shaped groove and a second arc-shaped groove, the lower end of the adjusting assembly is in sliding fit with the first arc-shaped groove, an elastic guide rod is arranged below the main wrench rod, the lower end of the elastic guide rod is in sliding fit with the second arc-shaped groove, the first clamping assembly comprises a first bidirectional screw rod and two first clamping plates, the two ends of the first bidirectional screw rod are rotatably connected with the main wrench rod, a first bevel gear is coaxially arranged in the middle part of the first bidirectional screw rod, the upper parts of the two first clamping plates are respectively in threaded fit with the two ends of the first bidirectional screw rod, a second clamping plate is arranged in each first clamping plate in a sliding mode, the second clamping plates slide along the axial direction of a first bidirectional screw rod, a first spring is arranged between each second clamping plate and the first clamping plate on the same side, a first screw rod is arranged on one side of each first clamping plate, and the first screw rod penetrates through the first clamping plates and is in threaded connection with the first clamping plates;

the two adjusting devices are respectively arranged at two ends of the first arc-shaped groove, and each adjusting device comprises two symmetrically arranged adjusting assemblies, wherein one of the adjusting assemblies is arranged at one end close to the first arc-shaped groove, and the other adjusting assembly is arranged at the middle part close to the first arc-shaped groove.

Furthermore, the second clamping assembly comprises a second bidirectional screw and two third clamping plates, two ends of the second bidirectional screw are rotatably connected with the auxiliary clamp rod, the lower portions of the two third clamping plates are respectively in threaded fit with two ends of the second bidirectional screw, and a locking component is further arranged at one end of the second bidirectional screw.

Furthermore, the locking part comprises a keycap, a plurality of T-shaped blocks are distributed on the circumference of one side of the keycap, a first sliding groove in sliding fit with the T-shaped blocks is formed in the outer side of the second bidirectional screw rod, and a second sliding groove in sliding fit with the T-shaped blocks is formed in one end of the auxiliary clamp rod.

Further, the adjusting component comprises a second screw rod, a first rotating shaft, a second bevel gear and a first gear, the second screw rod is in threaded connection with the upper portion of the main nipper rod, the first rotating shaft is in rotating connection with the main nipper rod, a first clamping block is fixedly mounted at the lower end of the second screw rod, a first clamping groove in sliding fit with the first clamping block is formed in the upper end of the first rotating shaft, a second clamping block is fixedly mounted at the lower end of the first rotating shaft, a second clamping groove in sliding fit with the second clamping block is formed in the upper end of the first gear, a second rotating shaft is coaxially arranged at the lower end of the first gear, the second rotating shaft is in sliding fit with the first arc-shaped groove, the width of the first arc-shaped groove is larger than the diameter of the second rotating shaft, and the second bevel gear is coaxially arranged on the first rotating shaft.

Further, the transmission assembly comprises a fixing seat, a third rotating shaft, a third bevel gear and a fourth bevel gear, the fixing seat is fixedly installed inside the main tong rod, the third rotating shaft is rotatably connected with the fixing seat, the third bevel gear is coaxially arranged at one end of the third rotating shaft, the fourth bevel gear is coaxially arranged at the other end of the third rotating shaft, the third bevel gear is meshed with the first bevel gear, and the fourth bevel gear is meshed with the second bevel gear.

Further, the adjusting assembly comprises a half gear, a baffle and a return spring, the middle of the half gear is rotatably connected with the upper part of the auxiliary nipper rod through a rotating shaft, the baffle is arranged on one side of the half gear and fixedly connected with the upper part of the auxiliary nipper rod, one end of the return spring is connected with the other side of the half gear, the other end of the return spring is connected with the baffle, and the half gear is meshed with the first gear when in contact.

Furthermore, the elastic guide rod comprises a first guide rod, a second guide rod and a second spring, one end of the first guide rod is located inside the second arc-shaped groove, the first guide rod is in sliding fit with the second arc-shaped groove, the second guide rod is sleeved on the upper portion of the first guide rod, the second spring is arranged between the first guide rod and the second guide rod, and the upper end of the second guide rod is fixedly connected with the main clamping rod.

Furthermore, anti-skidding line has all been seted up to the inboard of first splint, second splint and third splint.

Compared with the prior art, the invention has the beneficial effects that:

(1) when two pipe fittings need be assembled in the narrow and small region of operating space, at the in-process of rotatory main tong pole, through the cooperation of first arc wall, adjusting part and adjustment subassembly, can realize that first centre gripping subassembly is to the self-holding of pipe fitting, remove to press from both sides tightly, do not need the interval between two first splint of frequent regulation of staff, simplified work step, improved work efficiency.

(2) Because the diameter of pipe fitting can change, first splint can be in the in-process of using and there is the clearance between the pipe fitting of top, at this moment, second splint in two first splint can be through the elasticity of first spring outside roll-off, at this moment, rotatory first screw rod, make first screw rod support the second splint tightly, can compensate the space between first splint and the top pipe fitting, and, when dismantling some rusty pipe fittings, also can support tight second splint through rotatory first screw rod of initiative, further improve the tight dynamics of pressing from both sides to the top pipe fitting, improve the holistic practicality of device.

(3) In the process of rotating left and right of the main clamping rod, the main clamping rod can slightly ascend and descend along with the pipe fitting above, and the first guide rod, the second guide rod and the second spring in the elastic guide rod are arranged and comprise second clamping grooves formed in the first gear, so that the space for ascending and descending can be provided for the main clamping rod, and the main clamping rod can be smoothly operated when rotating.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of a portion of a first clamping assembly;

FIG. 3 is a schematic view of a first partial structure of the auxiliary clamp lever;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a partial structural cross-sectional view of the main clamping bar;

FIG. 6 is an enlarged view of FIG. 5 at B;

FIG. 7 is an exploded view of the adjustment assembly;

FIG. 8 is a second partial structural view of the auxiliary clamp lever;

FIG. 9 is an exploded view of the locking member;

FIG. 10 is a schematic view of the present invention clamping a tubular;

fig. 11 is a schematic view of the working state of the present invention.

Reference numerals:

1. a main tong bar; 2. an auxiliary clamp lever; 3. a first clamping assembly; 4. a transmission assembly; 5. an adjustment assembly; 6. a second clamping assembly; 7. an adjustment assembly; 8. an elastic guide rod; 9. a locking member; 21. a first arc-shaped slot; 22. a second arc-shaped slot; 31. a first bidirectional screw; 32. a first splint; 33. a first bevel gear; 34. a second splint; 35. a first spring; 36. a first screw; 41. a fixed seat; 42. a third rotating shaft; 43. a third bevel gear; 44. a fourth bevel gear; 51. a second screw; 52. a first rotating shaft; 53. a second bevel gear; 54. a first gear; 55. a first clamping block; 56. a second fixture block; 57. a second rotating shaft; 61. a second bidirectional screw; 62. a third splint; 71. a half gear; 72. a baffle plate; 73. a return spring; 81. a first guide bar; 82. a second guide bar; 83. a second spring; 91. a keycap; 92. a T-shaped block; 93. a first chute; 94. a second runner.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 11, an embodiment of the present invention provides a quick adjustable shifting pipe wrench, which includes a main wrench rod 1, an auxiliary wrench rod 2 is disposed below the main wrench rod 1, a first clamping assembly 3 is disposed at a head of the main wrench rod 1, a transmission assembly 4 and an adjusting assembly 5 are disposed in the main wrench rod 1, a second clamping assembly 6 is disposed at one end of the auxiliary wrench rod 2, a first arc-shaped groove 21 and a second arc-shaped groove 22 are disposed in a middle of the auxiliary wrench rod 2, a lower end of the adjusting assembly 5 is in sliding fit with the first arc-shaped groove 21, an elastic guide rod 8 is disposed below the main wrench rod 1, a lower end of the elastic guide rod 8 is in sliding fit with the second arc-shaped groove 22, the first clamping assembly 3 includes a first bidirectional screw 31 and two first clamping plates 32, two ends of the first bidirectional screw 31 are rotatably connected with the main wrench rod 1, a first bevel gear 33 is coaxially arranged in the middle of the first bidirectional screw 31, the upper parts of the two first clamping plates 32 are respectively in threaded fit with the two ends of the first bidirectional screw 31, a second clamping plate 34 is slidably arranged in each first clamping plate 32, the second clamping plate 34 slides along the axial direction of the first bidirectional screw 31, a first spring 35 is arranged between the second clamping plate 34 and the first clamping plate 32 on the same side, a first screw 36 is arranged on one side of the first clamping plate 32, and the first screw 36 penetrates through the first clamping plate 32 and is in threaded connection with the first clamping plate 32. When the adjusting assembly 5 on the main tong bar 1 is used, the transmission assembly 4 drives the first bevel gear 33 to rotate, so as to drive the first bidirectional screw 31 coaxially arranged with the first bevel gear 33 to rotate, so that the first clamping plates 32 at two ends of the first bidirectional screw 31 slide inwards, and the pipe fitting above is clamped tightly;

the pipe fitting clamping device is characterized by further comprising two adjusting devices, wherein the two adjusting devices are respectively arranged at two ends of the first arc-shaped groove 21, each adjusting device comprises two adjusting assemblies 7 which are symmetrically arranged, one of the adjusting assemblies 7 is arranged close to one end of the first arc-shaped groove 21, the other adjusting assembly 7 is arranged close to the middle of the first arc-shaped groove 21, the adjusting assemblies 7 are used for enabling the main clamping rod 1 to rotate clockwise when moving to two ends of the first arc-shaped groove 21, the main clamping rod 1 is enabled to release clamping of a pipe fitting above through the adjusting assembly 5, when the main clamping rod 1 returns to the middle of the first arc-shaped groove 21, the first gear 54 rotates anticlockwise, and the pipe fitting above is clamped again through the adjusting assembly 5.

Specifically, the second clamping assembly 6 includes a second bidirectional screw 61 and two third clamping plates 62, two ends of the second bidirectional screw 61 are rotatably connected to the auxiliary clamp rod 2, lower portions of the two third clamping plates 62 are respectively in threaded fit with two ends of the second bidirectional screw 61, and one end of the second bidirectional screw 61 is further provided with a locking component 9. The second two-way screw 61 is rotated so that the third jaws 62 at both ends of the second two-way screw 61 are slid inward.

Specifically, the locking component 9 includes a key cap 91, a plurality of T-shaped blocks 92 are distributed on a circumference of one side of the key cap 91, a first sliding groove 93 in sliding fit with the T-shaped blocks 92 is formed on an outer side of the second bidirectional screw 61, and a second sliding groove 94 in sliding fit with the T-shaped blocks 92 is formed at one end of the auxiliary clamp bar 2. The second clamping assembly 6 on the auxiliary clamp rod 2 is used, firstly, the key cap 91 on the locking part 9 is pulled out for a certain distance in a sliding mode, the T-shaped block 92 is separated from the second sliding groove 94, then the key cap 91 is rotated, because the vertical end of the T-shaped block 92 is always positioned in the first sliding groove 93, the key cap 91 drives the second bidirectional screw rod 61 to rotate, the third clamping plates 62 at the two ends of the second bidirectional screw rod 61 slide inwards, the lower pipe piece is clamped, the key cap 91 is slid after the lower pipe piece is clamped, the reset is realized, the T-shaped block 92 on the key cap 91 is continuously inserted into the auxiliary clamp rod 2, the second bidirectional screw rod 61 is locked, the rotation of the second clamping assembly is prevented, and the effect of locking the lower pipe piece is achieved.

Specifically, the adjusting assembly 5 comprises a second screw 51, a first rotating shaft 52, a second bevel gear 53 and a first gear 54, the second screw 51 is connected with the upper part of the main nipper rod 1 in a threaded way, the first rotating shaft 52 is rotationally connected with the main nipper rod, a first clamping block 55 is fixedly installed at the lower end of the second screw 51, a first clamping groove in sliding fit with the first clamping block 55 is formed at the upper end of the first rotating shaft 52, a second block 56 is fixedly mounted at the lower end of the first rotating shaft 52, a second slot in sliding fit with the second block 56 is formed at the upper end of the first gear 54, the lower end of the first gear 54 is coaxially provided with a second rotating shaft 57, the second rotating shaft 57 is in sliding fit with the first arc-shaped groove 21, and the width of the first arc-shaped slot 21 is larger than the diameter of the second rotating shaft 57, and the second bevel gear 53 is coaxially arranged on the first rotating shaft 52. It is worth explaining that the width of the first arc-shaped groove 21 is larger than the diameter of the second rotating shaft 57, so that the second rotating shaft 57 below the first gear 54 only provides the first gear 54 with an effect of sliding along the first arc-shaped groove 21, the first arc-shaped groove 21 cannot block the second rotating shaft 57, and the worker can conveniently continue to perform the pipe fitting assembly.

Specifically, the transmission assembly 4 includes a fixed seat 41, a third rotating shaft 42, a third bevel gear 43 and a fourth bevel gear 44, the fixed seat 41 is fixedly installed inside the main tong bar 1, the third rotating shaft 42 is rotatably connected with the fixed seat 41, the third bevel gear 43 is coaxially disposed at one end of the third rotating shaft 42, the fourth bevel gear 44 is coaxially disposed at the other end of the third rotating shaft 42, the third bevel gear 43 is engaged with the first bevel gear 33, and the fourth bevel gear 44 is engaged with the second bevel gear 53. The fixing base 41 ensures the horizontal stability of the third rotating shaft 42. The second screw 51 on the adjusting assembly 5 is rotated counterclockwise, so that the second screw 51 drives the first rotating shaft 52 to rotate through the first fixture block 55, the second bevel gear 53 on the first rotating shaft 52 drives the fourth bevel gear 44 on the transmission assembly 4 to rotate through the engagement with the fourth bevel gear 44 when rotating, and drives the third bevel gear 43 at the other end to rotate through the third rotating shaft 42, the first bevel gear 33 is driven to rotate through the engagement of the third bevel gear 43 and the first bevel gear 33, so as to drive the first bidirectional screw 31 coaxially arranged with the first bevel gear 33 to rotate, so that the first clamping plates 32 at the two ends of the first bidirectional screw 31 slide inwards to clamp the upper pipe, after ensuring that the upper and lower pipes are clamped, the main clamp bar 1 is rotated, so that the main clamp bar 1 rotates on the auxiliary clamp bar 2, and the first arc-shaped groove 21 and the second arc-shaped groove 22 are arranged to ensure that the main clamp bar 1 can rotate around the pipe, and the main clamp rod 1 is ensured not to shake through the limit of the first arc-shaped groove 21 and the second arc-shaped groove 22 when rotating, and the integral practicability of the device is improved.

Specifically, referring to fig. 4, the adjusting assembly 7 includes a half gear 71, a baffle plate 72 and a return spring 73, wherein the middle of the half gear 71 is rotatably connected with the upper portion of the auxiliary lever 2 through a rotating shaft, the baffle plate 72 is disposed at one side of the half gear 71, the baffle plate 72 is fixedly connected with the upper portion of the auxiliary lever 2, one end of the return spring 73 is connected with the other side of the half gear 71, the other end of the return spring 73 is connected with the baffle plate 72, and the half gear 71 is engaged with the first gear 54 when in contact. Taking fig. 4 as an example, when the main tong bar 1 moves to the right end of the first arc-shaped groove 21, the first gear 54 below the adjusting assembly 5 will contact with the adjusting assembly 7 at the right end of the first arc-shaped groove 21, and the half gear 71 on the adjusting assembly 7 at the right end of the first arc-shaped groove 21 cannot rotate clockwise because the right end of the half gear is blocked by the baffle 72 fixedly mounted on the auxiliary tong bar 2, so that in the process that the first gear 54 moves to the right end of the first arc-shaped groove 21 along with the main tong bar 1, the half gear 71 on the adjusting assembly 7 at the right end of the first arc-shaped groove 21 does not rotate, so that the first gear 54 can rotate clockwise in the process of contacting with it, so that the first gear 54 drives the first rotating shaft 52 to rotate clockwise through the second clamping block 56, so that the transmission assembly 4 drives the two first clamping plates 32 on the first clamping assembly 3 to open outwards to release the clamping of the pipe fitting above, in the process of reversely rotating the main tong bar 1 to reset the main tong bar, because the second screw 51 above the adjusting component 5 is in threaded connection with the main tong bar 1, the second screw 51, the first rotating shaft 52 and the first gear 54 have certain self-locking performance, the first gear 54 cannot easily rotate, the half gear 71 at the right end of the first arc-shaped groove 21 is driven to rotate by the first gear 54, the half gear 71 can reset through the reset spring 73 after rotating, the first gear 54 contacts with the adjusting component 7 at the middle part, the first gear 54 rotates counterclockwise, and the two first clamping plates 32 on the first clamping component 3 continuously clamp the upper pipe fitting through the same working principle.

Specifically, the elastic guide rod 8 includes a first guide rod 81, a second guide rod 82 and a second spring 83, one end of the first guide rod 81 is located inside the second arc-shaped groove 22, the first guide rod 81 is in sliding fit with the second arc-shaped groove 22, the second guide rod 82 is sleeved on the upper portion of the first guide rod 81, the second spring 83 is arranged between the first guide rod 81 and the second guide rod 82, and the upper end of the second guide rod 82 is fixedly connected with the main nipper bar 1. In the process that the main tong 1 rotates left and right, the main tong 1 slightly ascends and descends along with the upper pipe fitting, and the arrangement of the first guide rod 81, the second guide rod 82 and the second spring 83 in the elastic guide rod 8 comprises the second clamping groove formed in the first gear 54, so that the ascending and descending space can be provided for the main tong 1, and the main tong 1 can be smoothly operated when rotating.

Specifically, the first clamping plate 32, the second clamping plate 34 and the third clamping plate 62 are provided with anti-slip threads on the inner sides. The anti-slip threads can improve the gripping of the pipe by the first 32, second 34 and third 62 jaws.

The working principle is as follows: when two pipe fittings need to be assembled in an area with a narrow operation space, the auxiliary clamp rod 2 is aligned with the pipe fitting below, the main clamp rod 1 is aligned with the pipe fitting above, then the second clamping component 6 on the auxiliary clamp rod 2 is used, the key cap 91 on the locking part 9 is firstly pulled out by a certain distance in a sliding mode, so that the T-shaped block 92 is positioned outside the auxiliary clamp rod 2, then the inner side of the T-shaped block 92 is in sliding fit with one end of the second bidirectional screw 61, the key cap 91 is rotated, so that the key cap 91 drives the second bidirectional screw 61 to rotate through the T-shaped block 92, the third clamping plates 62 at two ends of the second bidirectional screw 61 slide inwards, the pipe fitting below is clamped, the key cap 91 is slid after the pipe fitting below is clamped, so that the key cap 91 is reset, the T-shaped block 92 on the key cap 91 is continuously inserted into the auxiliary clamp rod 2, the second bidirectional screw 61 is locked, the rotation of the second bidirectional screw is prevented, and the effect of locking the pipe fitting below is achieved, then, by using the adjusting assembly 5 on the main tong 1, the second screw 51 on the adjusting assembly 5 is rotated counterclockwise, so that the second screw 51 drives the first rotating shaft 52 to rotate through the first clamping block 55, the second bevel gear 53 on the first rotating shaft 52 drives the fourth bevel gear 44 on the transmission assembly 4 to rotate through the engagement with the fourth bevel gear 44 when rotating, and drives the third bevel gear 43 at the other end to rotate through the third rotating shaft 42, and drives the first bevel gear 33 to rotate through the engagement of the third bevel gear 43 with the first bevel gear 33, so as to drive the first bidirectional screw 31 coaxially arranged with the first bevel gear 33 to rotate, so that the first clamping plates 32 at both ends of the first bidirectional screw 31 slide inwards to clamp the upper pipe, which is worth explaining that, when the first rotating shaft 52 is at the middle position of the first arc-shaped slot 21, the first gear 54 does not contact with the half gears 71 at both sides thereof, to ensure that the adjusting assembly 5 has enough space during active rotation, and the second screw 51 on the adjusting assembly 5 cannot be rotated due to the first gear 54 being locked by the half gears 71 on both sides, after ensuring that the upper and lower pipe fittings are clamped tightly, the worker can hold the main tong bar 1 with one hand and the auxiliary tong bar 2 with the other hand, and start to rotate the main tong bar 1, so that the main tong bar 1 rotates on the auxiliary tong bar 2, at this time, the main tong bar 1 is located in the middle of the auxiliary tong bar 2, the arrangement of the first arc-shaped groove 21 and the second arc-shaped groove 22 can ensure that the main tong bar 1 can rotate around the pipe fitting, and ensure that the main tong bar 1 is limited by the second arc-shaped groove 22 during rotation, so as to improve the practicability of the whole device, for example, when the main tong bar 1 moves to the right end of the first arc-shaped groove 21, the first gear 54 below the adjusting assembly 5 can contact with the adjusting arc-shaped assembly 7 at the right end of the first arc-shaped groove 21, the half gear 71 on the right end adjusting assembly 7 of the first arc-shaped slot 21 cannot rotate clockwise because the right end of the half gear 71 on the right end adjusting assembly 7 of the first arc-shaped slot 21 is blocked by the baffle 72 fixedly mounted on the auxiliary clamp lever 2, so that in the process that the first gear 54 moves to the right end of the first arc-shaped slot 21 along with the main clamp lever 1, the half gear 71 on the right end adjusting assembly 7 of the first arc-shaped slot 21 does not rotate, so that the first gear 54 can rotate clockwise in the process of contacting with the first gear, so that the first gear 54 drives the first rotating shaft 52 to rotate clockwise through the second fixture block 56, so that the transmission assembly 4 is used to drive the two first clamping plates 32 on the first clamping assembly 3 to open outwards, the clamping on the upper pipe fitting is released, and in the process of reversely rotating the main clamp lever 1 to reset, because the second screw 51 above the adjusting assembly 5 is in threaded connection with the main clamp lever 1, the second screw 51, the first rotating shaft 52 and the first gear 54 have a certain self-locking property, so that the first gear 54 cannot easily rotate, the half gear 71 at the right end of the first arc-shaped groove 21 is driven by the first gear 54 to rotate, the half gear 71 can also reset through the reset spring 73 after rotating, the first gear 54 contacts with the adjusting component 7 at the middle part, so that the first gear 54 rotates counterclockwise, the two first clamping plates 32 on the first clamping component 3 continue to clamp the upper pipe fitting through the same working principle, it is worth explaining that the width of the first arc-shaped groove 21 is greater than the diameter of the second rotating shaft 57, because the first arc-shaped groove 21 mainly has the function of providing a reasonable setting position for the adjusting component 7, the first arc-shaped groove 21 cannot clamp the second rotating shaft 57, and thus, in the moving process of the main clamp rod 1, the second rotating shaft 57 cannot contact with the inner wall of the first arc-shaped groove 21 to rotate to affect the moving state of the adjusting component 5 above, the working principle of the first gear 54 on the adjusting component 5 and the two adjusting components 7 at the other end of the first arc-shaped groove 21 is the same as the above working principle, and both the first gear 54 rotates clockwise to unlock the upper pipe when sliding to one end of the first arc-shaped groove 21, and rotates counterclockwise to clamp the upper pipe when the main clamping bar 1 is reset to the middle part of the auxiliary clamping bar 2, so that the next operation is facilitated, the distance between the two first clamping plates 32 does not need to be frequently adjusted by a worker, the working steps are simplified, the working efficiency is improved, and in the process of disassembling the pipe, the threaded pipe at the lower end of the upper pipe is exposed along with the continuous upward movement of the upper pipe, the diameter of the threaded pipe is often smaller than that of the pipe, so that a gap exists between the first clamping plates 32 and the upper pipe, at this time, the second clamping plates 34 in the two first clamping plates 32 slide outwards through the elasticity of the first spring 35, at this time, the first screw 36 is rotated, so that the first screw 36 abuts against the second clamp plate 34 tightly, that is, a gap between the first clamp plate 32 and the upper pipe fitting can be made up, and when some rusty pipe fittings are disassembled, the first screw 36 can also abut against the second clamp plate 34 tightly through active rotation, so that the clamping force on the upper pipe fitting is further improved, the overall practicability of the device is improved, in the process of left-right rotation of the main clamp 1, the main clamp 1 can slightly ascend and descend along with the upper pipe fitting, the first guide rod 81, the second guide rod 82 and the second spring 83 in the elastic guide rod 8 are arranged, the second clamping groove is formed in the first gear 54, and the first clamping groove can provide ascending and descending space for the main clamp 1, so that the main clamp 1 can be smoothly operated during rotation.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a but quick adjustment's shifting collar pipe wrench, includes main tong pole (1), its characterized in that: an auxiliary clamp rod (2) is arranged below the main clamp rod (1), a first clamping assembly (3) is arranged at the head of the main clamp rod (1), a transmission assembly (4) and an adjusting assembly (5) are arranged in the main clamp rod (1), a second clamping assembly (6) is arranged at one end of the auxiliary clamp rod (2), a first arc-shaped groove (21) and a second arc-shaped groove (22) are formed in the middle of the auxiliary clamp rod (2), the lower end of the adjusting assembly (5) is in sliding fit with the first arc-shaped groove (21), an elastic guide rod (8) is arranged below the main clamp rod (1), the lower end of the elastic guide rod (8) is in sliding fit with the second arc-shaped groove (22), the first clamping assembly (3) comprises a first bidirectional screw rod (31) and two first clamping plates (32), and two ends of the first bidirectional screw rod (31) are rotatably connected with the main clamp rod (1), a first bevel gear (33) is coaxially arranged in the middle of the first bidirectional screw (31), the upper parts of the two first clamping plates (32) are respectively in threaded fit with the two ends of the first bidirectional screw (31), a second clamping plate (34) is arranged in each first clamping plate (32) in a sliding manner, the second clamping plate (34) slides along the axial direction of the first bidirectional screw (31), a first spring (35) is arranged between each second clamping plate (34) and the first clamping plate (32) on the same side, a first screw (36) is arranged on one side of each first clamping plate (32), and the first screw (36) penetrates through the first clamping plates (32) and is in threaded connection with the first clamping plates (32); the clamping device comprises a first arc-shaped groove (21), two adjusting devices and a second clamping assembly, wherein the two adjusting devices are respectively arranged at two ends of the first arc-shaped groove (21), each adjusting device comprises two symmetrically arranged adjusting assemblies (7), one adjusting assembly (7) is arranged close to one end of the first arc-shaped groove (21), the other adjusting assembly (7) is arranged close to the middle of the first arc-shaped groove (21), the second clamping assembly (6) comprises a second bidirectional screw rod (61) and two third clamping plates (62), two ends of the second bidirectional screw rod (61) are rotatably connected with an auxiliary clamp rod (2), the lower parts of the two third clamping plates (62) are respectively in threaded fit with two ends of the second bidirectional screw rod (61), one end of the second bidirectional screw rod (61) is further provided with a locking component (9), the locking component (9) comprises a keycap (91), and a plurality of T-shaped blocks (92) are distributed on the circumference of one side of the keycap (91), a first sliding groove (93) in sliding fit with the T-shaped block (92) is formed in the outer side of the second bidirectional screw (61), a second sliding groove (94) in sliding fit with the T-shaped block (92) is formed in one end of the auxiliary clamp rod (2), the adjusting assembly (5) comprises a second screw (51), a first rotating shaft (52), a second bevel gear (53) and a first gear (54), the second screw (51) is in threaded connection with the upper portion of the main clamp rod (1), the first rotating shaft (52) is in rotating connection with the main clamp rod, a first clamping block (55) is fixedly installed at the lower end of the second screw (51), a first clamping groove in sliding fit with the first clamping block (55) is formed in the upper end of the first rotating shaft (52), a second clamping block (56) is fixedly installed at the lower end of the first rotating shaft (52), a second clamping groove in sliding fit with the second clamping block (56) is formed in the upper end of the first gear (54), the lower end of the first gear (54) is coaxially provided with a second rotating shaft (57), the second rotating shaft (57) is in sliding fit with the first arc-shaped groove (21), the width of the first arc-shaped groove (21) is larger than the diameter of the second rotating shaft (57), the second bevel gear (53) is coaxially arranged on the first rotating shaft (52), the transmission assembly (4) comprises a fixed seat (41), a third rotating shaft (42), a third bevel gear (43) and a fourth bevel gear (44), the fixed seat (41) is fixedly arranged in the main plier rod (1), the third rotating shaft (42) is rotatably connected with the fixed seat (41), the third bevel gear (43) is coaxially arranged at one end of the third rotating shaft (42), the fourth bevel gear (44) is coaxially arranged at the other end of the third rotating shaft (42), and the third bevel gear (43) is meshed with the first bevel gear (33), the fourth bevel gear (44) is meshed with the second bevel gear (53), the adjusting assembly (7) comprises a half gear (71), a baffle (72) and a return spring (73), the middle part of the half gear (71) is rotatably connected with the upper part of the auxiliary clamp rod (2) through a rotating shaft, the baffle (72) is arranged on one side of the half gear (71), the baffle (72) is fixedly connected with the upper part of the auxiliary clamp rod (2), one end of the return spring (73) is connected with the other side of the half gear (71), the other end of the return spring (73) is connected with the baffle (72), the half gear (71) is meshed with the first gear (54) when in contact, when the first rotating shaft (52) is positioned at the middle position of the first arc-shaped groove (21), the first gear (54) is not in contact with the half gears (71) on two sides of the first rotating shaft, and when the main clamp rod (1) moves to the right end of the first arc-shaped groove (21), the first gear (54) below the adjusting component (5) can be contacted with the adjusting component (7) at the right end of the first arc-shaped groove (21), the half gear (71) on the adjusting component (7) at the right end of the first arc-shaped groove (21) can not rotate clockwise due to the fact that the right end of the half gear is blocked by the baffle (72) fixedly installed on the auxiliary clamp rod (2), the first gear (54) can rotate clockwise in the contact process, clamping of a pipe fitting above the first gear is relieved, in the process of resetting the main clamp rod (1) by reversely rotating, the half gear (71) at the right end of the first arc-shaped groove (21) can be driven to rotate by the first gear (54) due to the fact that the second screw (51) above the adjusting component (5) is in threaded connection with the main clamp rod (1), the first gear (54) can not rotate easily, and the half gear (71) can also reset through the resetting spring (73) after rotating, the first gear (54) is in turn in contact with the middle adjusting assembly (7), so that the first gear (54) rotates anticlockwise, and the two first clamping plates (32) on the first clamping assembly (3) continue to clamp the upper pipe.

2. The quick adjustable shifting vise of claim 1, where: elastic guide rod (8) include first guide arm (81), second guide arm (82) and second spring (83), the one end of first guide arm (81) is located the inside of second arc wall (22), just first guide arm (81) and second arc wall (22) sliding fit, second guide arm (82) cover is established on the upper portion of first guide arm (81), just be provided with second spring (83) between first guide arm (81) and second guide arm (82), the upper end and main tong bar (1) fixed connection of second guide arm (82).

3. The quick adjustable shifting vise of claim 1, where: anti-skidding lines are arranged on the inner sides of the first clamping plate (32), the second clamping plate (34) and the third clamping plate (62).