CN212096125U

CN212096125U - Adjustable telescopic wrench

Info

Publication number: CN212096125U
Application number: CN202020759371.9U
Authority: CN
Inventors: 吴晓敏; 冯晟宇; 赵志芳; 姜永林
Original assignee: Zhejiang Rongsheng Paper Industry Holding Co ltd
Current assignee: Zhejiang Rongsheng Paper Industry Holding Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-08
Anticipated expiration: 2030-05-09

Abstract

The utility model provides an adjustable telescopic wrench belongs to mechanical technical field, and it has solved the poor problem of current spanner result of use. This adjustable telescopic spanner includes: the body is arranged in a rod shape, and a knob is arranged on the peripheral side surface of the body in a penetrating way; the girdle is arranged at the head of the body, one end of the girdle is fixedly connected with the body, the other end of the girdle enters the body and is connected with the knob, the girdle and the body are encircled to form a lantern ring for accommodating the connecting piece, and the size of the lantern ring can be changed by rotating the knob to drive the girdle to enter and exit the body; the handle is positioned at the tail of the body and movably connected with the body, the handle and the body are coaxially arranged, and the handle can be close to or far away from the girdle band. The utility model has the characteristics of excellent in use effect.

Description

Adjustable telescopic wrench

Technical Field

The utility model belongs to the technical field of machinery, a adjustable flexible spanner is related to, especially an adjustable flexible powerful spanner for dismantling large-scale connecting piece.

Background

A wrench is a common mounting and dismounting tool, and is a manual tool for screwing bolts, screws, nuts and other opening or trepanning fasteners for tightly holding the bolts or the nuts by using the lever principle. The wrench is generally provided with an opening or a trepan for holding the bolt or the nut at one end or both ends of the handle portion, and when the wrench is used, the bolt or the nut can be screwed by applying an external force to the handle portion along the rotation direction of the thread.

Common wrenches are generally divided into solid wrenches and adjustable wrenches, each solid wrench has an opening with a fixed size at one end or two ends for screwing nuts or bolts with corresponding sizes, the application range is small, and a corresponding set of tools is generally provided.

The opening width of the adjustable wrench can be adjusted within a certain size range, bolts or nuts with different specifications can be screwed, the position of the jaw is adjusted by rotating the worm, and then the opening width is changed. The structure of the spanner is characterized in that a fixed jaw is made into a flat clamp recess with thin teeth; one end of the movable jaw is made into a flat jaw, and the other end is made into a concave jaw with fine teeth.

Most of the wrenches are used for connecting parts such as nuts and bolts with common sizes, and cannot be applied to specially-made parts, and particularly, the size of the connecting bolt on large-scale equipment is far larger than the application range of the common wrench. If a common wrench is used, a large wrench with a matched size must be manufactured, so that on one hand, the manufacturing cost is high, the manufacturing difficulty is high, and on the other hand, after the size is increased, the adjusting precision is relatively reduced, and the use is inconvenient.

To sum up, for solving the structural not enough of current adjustable spanner, the utility model relates to a rational in infrastructure, excellent in use effect's adjustable telescopic spanner.

Disclosure of Invention

The utility model provides an adjustable telescopic wrench with reasonable structure and good use effect, which solves the problems existing in the prior art.

The purpose of the utility model can be realized by the following technical proposal: an adjustable reach wrench, comprising:

the body is arranged in a rod shape, and a knob is arranged on the peripheral side surface of the body in a penetrating way;

the girdle is arranged at the head of the body, one end of the girdle is fixedly connected with the body, the other end of the girdle enters the body and is connected with the knob, the girdle and the body are encircled to form a lantern ring for accommodating the connecting piece, and the size of the lantern ring can be changed by rotating the knob to drive the girdle to enter and exit the body;

the handle is positioned at the tail of the body and movably connected with the body, the handle and the body are coaxially arranged, and the handle can be close to or far away from the girdle band.

As the further improvement of the present case, the worm wheel and the worm which are mutually meshed are installed inside the body, the middle part of the worm wheel is provided with the wheel shaft in a penetrating mode and the wheel shaft penetrates through the body, the annular belt is wound on the wheel shaft, the worm is perpendicular to the wheel shaft, one end of the worm extends outwards and is fixedly connected with the knob.

As a further improvement of the scheme, the annular belt is arranged in a sheet shape, and an anti-skid layer is arranged on the surface of the annular belt.

As a further improvement of the scheme, a plurality of anti-skid protrusions are uniformly distributed on the inner side of the annular belt.

As another improvement of the present application, the handle is formed by a plurality of sliding sleeves which are coaxially arranged in a nested manner, and the sliding sleeve which is positioned at the innermost side is sleeved on the tail of the body.

As a further improvement of the scheme, the handle part is sleeved on the body, the tail part of the body is provided with a plurality of first threads in a surrounding mode, and the inner wall of the handle is provided with a plurality of second threads which are arranged corresponding to the first threads.

As a further improvement of the scheme, a plurality of circles of anti-slip edges are arranged at one end, far away from the body, of the handle in a surrounding mode.

Compared with the prior art, the utility model has reasonable structure arrangement, the ring belt is matched with the body to form a sleeve ring which is convenient for clamping the connecting piece, and simultaneously, the size of the sleeve ring is convenient to adjust through the design of the knob, thus being suitable for connecting pieces with different specifications; furthermore, the telescopic structure of the handle is favorable for changing the moment, is convenient for applying proper force to the connecting piece, and is favorable for quickly disassembling and assembling the connecting piece.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a partial structural schematic diagram of fig. 1.

Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

In the figure, 10, the body; 11. worm wheel, 12, worm; 13. a wheel axle; 14. a first thread; 15. a knob; 20. a girdle; 21. a collar; 30. a handle; 31. a sliding sleeve; 32. and (4) anti-slip edges.

Detailed Description

The technical solution of the present invention will be further explained with reference to the following embodiments and accompanying drawings.

As shown in fig. 1 and 2, the adjustable impact wrench includes:

the body 10 is arranged in a rod shape, and the peripheral side surface of the body 10 is provided with a knob 15 in a penetrating way;

the girdle 20 is arranged at the head of the body 10, one end of the girdle 20 is fixedly connected with the body 10, the other end part of the girdle 20 enters the body 10 and is connected with the knob 15, the girdle 20 and the body 10 are encircled to form a lantern ring 21 for containing a connecting piece, and the rotation of the knob 15 can drive the girdle 20 to enter and exit the body 10 so as to change the size of the lantern ring 21;

the handle 30 is positioned at the tail of the body 10 and movably connected with the body 10, the handle 30 is coaxially arranged with the body 10, and the handle 30 can be close to or far away from the girdle 20.

Most of the existing wrenches are used for connecting parts such as nuts and bolts with common sizes, and cannot be applied to specially-made parts, and particularly, the size of the connecting bolt on large-scale equipment is far larger than the application range of the common wrench. If a common wrench is used, a large wrench with a matched size must be manufactured, so that on one hand, the manufacturing cost is high, the manufacturing difficulty is high, and on the other hand, after the size is increased, the adjusting precision is relatively reduced, and the use is inconvenient.

Therefore, the utility model discloses an adjustable telescopic wrench forms the lantern ring 21 through the cooperation of clitellum 20 with body 10 and is convenient for the chucking connecting piece, and through the design of knob 15, the size of the lantern ring 21 of being convenient for is adjusted to the while, is applicable to the connecting piece of different specifications.

Specifically, to the main equipment, the specification of connecting piece is great, and ordinary spanner is difficult to dismantle, and the lantern ring 21 of adjustable size is set up here, and the buckle of being convenient for rotates knob 15 this moment on connecting pieces such as the bolt of equidimension not, nuts, with lantern ring 21 chucking on the connecting piece, rotates the connecting piece through applying external force on handle 30 and installs or dismantle, and convenient operation, excellent in use effect.

Meanwhile, the handle 30 can be preferably extended or retracted relative to the body 10 to change the length, which is beneficial to change the moment and the operator can apply appropriate force. In addition, to some narrow and small spaces, handle 30 extends, is favorable to operating personnel to demonstrate more, is favorable to quick dismantlement, installation connecting piece.

Preferably, a worm wheel 11 and a worm 12 which are engaged with each other are installed inside the body 10, an axle 13 is arranged in the middle of the worm wheel 11 and penetrates through the body 10, the ring belt 20 is wound on the axle 13, the worm 12 is arranged perpendicular to the axle 13, and one end of the worm 12 extends outwards and is fixedly connected with the knob 15.

It is preferable that a worm wheel 11 and a worm 12 are provided inside the body 10 to engage with each other, and the movement of the external knob 15 is transmitted to the wheel shaft 13 by the transmission of the worm wheel 11 and the worm 12, thereby driving the endless belt 20 to wind or unwind around the wheel shaft 13. The worm 12 is designed by adopting a single-head worm 12, has a self-locking function, ensures that the worm wheel 11 and the worm 12 are kept in a stop state when the knob 15 stops rotating, does not generate transmission, and avoids the situation that the lantern ring 21 is separated during working.

During operation, preferably, the forward rotation knob 15 drives the ring belt 20 to wind on the wheel shaft 13, so that the size of the ring 21 is reduced, and the connecting piece is clamped; when the knob 15 is turned reversely, the ring belt 20 is driven to unwind from the wheel shaft 13 and gradually withdraw from the body 10, thereby enlarging the ring 21.

It should be noted that the inside of the body 10 is preferably provided with a strip-shaped gap for the girdle 20 to go in and out, so that the girdle 20 can go in and out the body 10 stably, and of course, in actual manufacturing, the internal structure of the body 10 can be modified according to the use situation, and is not limited herein. In actual use, when the ring belt 20 is withdrawn from the body 10, the ring belt 20 can be pulled out of the body 10 by external force while the knob 15 is turned, and the operation is not affected.

Further, the endless belt 20 is provided in a sheet shape, and an anti-slip layer (not shown) is provided on the surface of the endless belt 20. In order to maintain the force of the collar 21 clamping the connector, it is preferable that the surface of the ring belt 20 is provided with an anti-slip layer having a large friction force to prevent the collar 21 from being separated from the connector. In practice, the endless belt 20 may be made of a material having a high coefficient of friction, such as a composite material, e.g., rubber.

Of course, clitellum 20 also can adopt other structures, the utility model discloses in can also prefer the inboard evenly distributed of clitellum 20 to have a plurality of non-slip raised (not shown in the figure), during the use, be convenient for increase the frictional force between the lantern ring 21 and the connecting piece surface, be favorable to dismantling or the installation work goes on smoothly.

The width of the ring belt 20 needs to be set according to the size of the contact surface between the ring belt and the corresponding connecting piece, and the ring belt 20 is preferably suitable for connecting pieces with various specifications, so that the utilization rate is improved, and is not limited herein.

As shown in fig. 1, which is a schematic structural view of the first embodiment of the present invention, preferably, the handle 30 is formed by stacking a plurality of sliding sleeves 31 coaxially disposed, and the sliding sleeve 31 located at the innermost side is sleeved on the tail of the body 10.

In this embodiment, the handle 30 is preferably arranged to be a telescopic structure formed by combining a plurality of sliding sleeves 31, and according to actual needs, the adjusting handle 30 is extended outwards or retracted towards the body 10, so that the working length of the handle 30 is increased or shortened, the flexibility is high, the handle is suitable for different torque requirements, and the use is convenient.

The specific number of the sliding sleeves 31 can be set according to the actual use requirement, and is not limited herein.

As shown in fig. 3, which is a schematic structural diagram of the second embodiment of the present invention, further, the handle 30 is partially sleeved on the body 10, the tail of the body 10 is surrounded by a plurality of first threads 14, and the inner wall of the handle 30 is provided with a plurality of second threads (not shown in the figure) corresponding to the first threads 14.

In order to realize the length adjustment of the handle 30, the working length between the handle 30 and the body 10 can be changed in a threaded connection mode, and the adjustment is convenient. Preferably, the inner part of the handle 30 is hollow, so that a thread is formed to connect the handle 30 with the body 10, and meanwhile, the hollow structure of the handle 30 can also improve the overall strength of the handle 30, can bear and apply a large acting force, and has a good use effect.

Further, the handle 30 is provided with a plurality of ring anti-slip ribs 32 around an end thereof away from the body 10. The arrangement of the anti-slip ribs 32 can increase the friction force between the hand of the operator and the handle 30, so that the operator can continuously apply the acting force on the handle 30, and the smooth operation of disassembly or assembly is facilitated.

The adjustable telescopic wrench is reasonable in structural arrangement, the ring belt 20 is matched with the body 10 to form the ring 21, so that the connecting piece can be clamped conveniently, and meanwhile, the size of the ring 21 can be adjusted conveniently through the design of the knob 15, so that the adjustable telescopic wrench is suitable for connecting pieces of different specifications; furthermore, the telescopic structure of the handle 30 is beneficial to changing the moment, is convenient for applying proper force to the connecting piece, and is beneficial to quickly disassembling and assembling the connecting piece.

The preferred embodiments of the present invention are described herein, but the scope of the present invention is not limited thereto. Modifications or additions to or replacement by similar means to those skilled in the art to which the invention pertains to the specific embodiments described herein are intended to be covered by the scope of the invention.

Claims

1. An adjustable telescopic wrench, comprising:

2. The adjustable telescopic wrench as claimed in claim 1, wherein the body has a worm wheel and a worm engaged with each other, the worm wheel has a wheel shaft passing through the middle thereof and the wheel shaft passes through the body, the ring belt is wound around the wheel shaft, the worm is perpendicular to the wheel shaft, and one end of the worm extends outward and is fixedly connected to the knob.

3. The adjustable telescopic wrench as claimed in claim 1 or 2, wherein the ring belt is in a sheet shape, and the surface of the ring belt is provided with an anti-slip layer.

4. An adjustable telescopic wrench as claimed in claim 1 or 2, wherein the inner side of the ring belt is evenly distributed with a plurality of anti-slip protrusions.

5. The adjustable telescopic wrench as claimed in claim 1 or 2, wherein the handle is formed by a plurality of coaxially arranged sliding sleeves, and the innermost sliding sleeve is sleeved on the tail of the body.

6. The adjustable telescopic wrench as claimed in claim 1 or 2, wherein the handle portion is sleeved on the body, the tail portion of the body is provided with a plurality of first threads in a surrounding manner, and the inner wall of the handle is provided with a plurality of second threads corresponding to the first threads.

7. The adjustable telescopic wrench as claimed in claim 1, wherein the handle is provided with a plurality of anti-slip ribs around the end thereof remote from the body.