CN218226369U

CN218226369U - Adjustable wrench capable of rotating by small angle

Info

Publication number: CN218226369U
Application number: CN202221952653.6U
Authority: CN
Inventors: 孔晓林; 李欢欢; 尚珍
Original assignee: Beijing Polytechnic
Current assignee: Beijing Polytechnic
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-01-06
Anticipated expiration: 2032-07-27

Abstract

The utility model relates to a can rotate narrow-angle's adjustable spanner, including work portion and handle, work portion is equipped with adjusting part including the centre gripping wall that forms in handle one side, the interchangeable chuck of setting in the centre gripping wall in the work portion to supply the angle of moving of adjustable chuck in the centre gripping wall to adjust. The adjustable wrench capable of rotating at a small angle can rotate at a small angle for multiple times through the adjusting component, and finally, the adjustable wrench can be accumulated to rotate at a large angle; in order to be applicable to the loading and unloading of nuts with different sizes, secondly, the wrench adopts a replaceable chuck structure so as to adapt to the requirements with different sizes, and the wrench can also be used as a fixed wrench in a normal rotating space.

Description

Adjustable wrench capable of rotating by small angle

Technical Field

The utility model belongs to the hardware and tools field, concretely relates to can rotate narrow angle's monkey wrench.

Background

A wrench is a common tool in the process of disassembling and assembling mechanical equipment, and bolts, screws, nuts and other fasteners are screwed by utilizing 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.

There are two types of fixed and adjustable wrenches currently on the market. The fixed wrench is mainly applied to common life and work, is simple to use, can only be applied to nuts of the same size and specification, and cannot be used when the sizes are different. The adjustable wrench has an opening width adjustable within a certain range, and is a tool for fastening and loosening nuts and bolts of different specifications. The adjustable wrench is composed of a head part and a handle part, wherein the head part is composed of an adjustable plate lip, a fixed plate lip, a plate opening, a turbine and a shaft pin. The size of the plate opening can be adjusted by rotating the turbine, the specification is represented by length multiplied by maximum opening width (unit: mm), the nut can be used for dismounting nuts within a certain size range, and the device is very practical. Both of these wrenches require wrench rotation spaces in the range of greater than 60 degrees when used, which is also a fundamental structural requirement in machine design.

However, in practical design, the spatial position of some bolts is limited to be small for various reasons, such as installation of other related equipment after assembly, subsequent improvement of component structure, and the like. When the space size is less than the required space, if the requirements of maintaining and disassembling the bolt appear, the conventional wrench tools can not meet the requirements, and the work of disassembling the bolt connecting assembly can not be completed.

Disclosure of Invention

The utility model provides a can rotate narrow angle's adjustable spanner to separate or screw up bolted connection spare completely.

The utility model discloses specific technical scheme as follows: the adjustable wrench capable of rotating by a small angle comprises a working part and a handle, wherein the working part comprises a clamping wall formed on one side of the handle and a replaceable chuck arranged in the clamping wall, an adjusting component is arranged on the working part, and the moving angle of the replaceable chuck in the clamping wall is adjusted through the adjusting component.

As a further improvement, the clamping walls are of two-layer structures, each layer of structure is a semicircular structure, an accommodating cavity is formed between the two layers of clamping walls for mounting the replaceable chuck, the diameter of the accommodating cavity is larger than that of the replaceable chuck, and the height of the accommodating cavity is equal to the thickness of the replaceable chuck.

As a further improvement, the adjusting component comprises a pawl and a torsional spring arranged on the pawl, one end of the replaceable chuck forms a gear tooth structure, the end part of the pawl is clamped on the tooth surface of the gear tooth structure, and the pawl is driven by driving the torsional spring through rotating the handle so as to drive the replaceable chuck to rotate along the clamping wall.

As a further improvement, a sliding groove is arranged on the inner peripheral wall of one layer of the clamping wall, a sliding block is arranged on the peripheral wall of the replaceable chuck, and the sliding block is slidably arranged in the sliding groove.

As a further improvement, the other end of the replaceable chuck is provided with a U-shaped bayonet which is opposite to the gear tooth structure.

As a further improvement, the clamping wall is provided with a clamping groove.

As a further improvement, the clamping groove is of an open polygonal structure.

As a further improvement, a locking piece is arranged on the clamping wall.

As a further improvement, the adjustment assembly further comprises a fixing member provided at the other end of the pawl.

As a further improvement, the handle comprises a holding part, a connecting part formed at one end of the holding part and a hanging part formed at the other end of the holding part, the connecting part and the clamping wall are integrally formed, and the hanging part is provided with a hanging hole.

The above technical scheme of the utility model following beneficial effect has: the adjustable wrench capable of rotating at a small angle can rotate at a small angle for multiple times through the adjusting component, and finally, the adjustable wrench can be accumulated to rotate at a large angle; in order to be applicable to the loading and unloading of nuts with different sizes, secondly, the wrench adopts a replaceable chuck structure so as to adapt to the requirements with different sizes, and the wrench can also be used as a fixed wrench in a normal rotating space.

Drawings

Fig. 1 is a schematic view of a adjustable wrench capable of rotating by a small angle according to the present invention;

fig. 2 isbase:Sub>A schematic cross-sectional view ofbase:Sub>A portionbase:Sub>A-base:Sub>A of the adjustable wrench of fig. 1 capable of rotating bybase:Sub>A small angle according to the present invention;

description of reference numerals: 1. the novel clamping tool comprises a working part, a handle, an adjusting component, a clamping head, a clamping wall, a clamping groove, a locking part, a sliding block, a holding part, a connecting part, a hanging part, a connecting part and a hanging part, wherein the working part comprises 2, the handle, 3, the adjusting component, 11, the replaceable clamping head, 12, the clamping wall, 13, the clamping groove, 14, the locking part, 15, the sliding block, 21, the holding part, 22, the connecting part, 23, the hanging part, 24, a hanging hole, 31, a pawl, 32, a torsion spring and 33, a fixing part.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, the adjustable wrench capable of rotating at a small angle of the present invention includes a working portion 1 and a handle 2, the working portion 1 includes two layers of clamping walls 12 formed on one side of the handle 2 and a replaceable chuck 11 disposed in the clamping walls 12, an adjusting assembly 3 is disposed on the working portion 1, and the adjusting assembly 3 adjusts the moving angle of the replaceable chuck 11 in the clamping walls 12.

The clamping walls 12 are of a semicircular structure, a containing cavity is formed between the two layers of the clamping walls 12 for installing the replaceable chuck 11, and the diameter of the containing cavity is larger than that of the replaceable chuck 11. The height of the receiving cavity corresponds to the thickness of the exchangeable cartridge 11.

One end of the interchangeable cartridge 11 is formed with a gear tooth arrangement for use with the adjustment assembly 3. The other end of the replaceable chuck 11 is provided with a U-shaped bayonet which is opposite to the gear tooth structure. The clamping wall 12 is provided with a clamping groove 13, the clamping groove 13 is an open polygon, and in this embodiment, the clamping groove 13 is an open quadrilateral structure. The retaining wall 12 is further provided with a locking member 14 for locking the locking member 14 to prevent the replaceable cartridge 11 from rotating by means of the pawl 31 and the torsion spring 32, thereby allowing the combined wrench to be used as a fixed wrench. Preferably, the locking member 14 employs anti-rotation screws.

Specifically, referring to fig. 2, the inner peripheral wall of the first layer of clamping wall 12 is provided with a sliding slot (not shown), the peripheral wall of the replaceable collet 11 is provided with a sliding block 15, and the sliding block 15 is slidably disposed in the sliding slot.

The handle 2 comprises a holding part 21, a connecting part 22 formed at one end of the holding part 21 and a hanging part 23 formed at the other end of the holding part 21, the connecting part 22 and the clamping wall 12 are integrally formed, a hanging hole 24 is formed in the hanging part 23, and the wrench can be hung at a proper place through the hanging hole 24 in the hanging part 23, so that the wrench can be conveniently taken at any time.

Adjusting part 3 includes that adjusting part 3 includes pawl 31 and the torsional spring 32 of setting on pawl 31, the one end of interchangeable chuck 11 forms teeth of a cogwheel structure, pawl 31 tip card is established on the flank of a cogwheel structure, drive pawl 31 through twist grip 2 and drive interchangeable chuck 11 and rotate along grip wall 12 in order to drive torsional spring 32, the setting is at the mounting 33 of the pawl 31 other end, in this embodiment, mounting 33 is the screw, the one end of interchangeable chuck 11 forms teeth of a cogwheel structure, pawl 31 tip card is established on the flank of teeth of a cogwheel structure, drive pawl 31 through twist grip 2 in order to drive torsional spring 32, and then drive interchangeable chuck 11 is followed grip wall 12 rotates.

The clamping groove 13 can realize the function of fixing a wrench with a preset size; the replaceable chucks 11 can be arranged in the middle of the clamping wall, and the sizes of gaps in the middle of different replaceable chucks 11 are different, so that the nuts with different sizes can be satisfied; the replaceable chuck 11 is arranged on the clamping wall 12 through reverse rotation, the positioning of the replaceable chuck is realized through the sliding block 15 on the clamping wall 12, a gear tooth structure on the edge of the replaceable chuck 11 is matched with the pawl 31 and the torsion spring 32, the pawl 31 and the torsion spring 32 are fixed on the handle 2 through the fixing piece 33, and the small-angle moving of the nut is realized through twisting the handle 2; if the whole angle rotation does not complete the twisting task, the pawl 31 can be manually lifted to enable the replaceable chuck 11 to rotate, so that the pawl 13 is matched with the first tooth again to realize the rotation of the same angle; tightening the locking member 14 allows the combination wrench to be used as a fixed wrench.

By utilizing the ratchet principle, the ratchet wheel is a main component forming a ratchet wheel mechanism, the handle 2 serves as a rocker, the tooth-shaped structure of the replaceable chuck 11 serves as the ratchet wheel, the pawl 31 and the torsion spring 32 are connected together and are arranged on the handle through the fixing piece 33, and the ratchet wheel is fixedly connected on the driven shaft through a key; when the handle 2 is rotated, the driving pawl 31 is inserted into the tooth groove of the ratchet wheel to push the ratchet wheel to rotate by an angle, the ratchet wheel can rotate by a small angle for multiple times by utilizing the principle of the ratchet wheel, and finally, the rotation of a large angle is accumulated; in order to be used for the loading and unloading of nuts with different sizes, the utility model discloses a removable chuck structure to the demand of practical not unidimensional. The utility model relates to a can rotate small-angle adjustable spanner also can regard as a fixed spanner to use in normal rotation space.

To sum up, the utility model relates to a can rotate adjustable spanner of small angle through adjusting part 3, utilizes the ratchet principle, can realize the rotation of multiple small-angle, accumulates into the rotation of large angle at last. The problem that the space positions of certain bolts are limited and reduced due to the installation of other related equipment devices and the subsequent improvement of component structures after assembly can be effectively solved. When the space size is less than the required space, if the needs of maintaining and disassembling the bolt appear, the problem that these conventional spanner tools can not solve, the work of disassembling the bolt coupling assembling can not be accomplished to conventional spanner. In order to be used for the loading and unloading of nuts with different sizes, the utility model discloses a removable chuck structure goes to be suitable for the demand of different sizes. Secondly, the utility model discloses also can regard as a fixed spanner to use in normal rotation space.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides a can rotate narrow angle's adjustable spanner, includes work portion (1) and handle (2), its characterized in that: the working part (1) comprises a clamping wall (12) formed on one side of the handle (2) and a replaceable chuck (11) arranged in the clamping wall (12), an adjusting component (3) is arranged on the working part (1), and the moving and rotating angle of the replaceable chuck (11) in the clamping wall (12) is adjusted through the adjusting component (3).

2. The adjustable wrench capable of rotating at a small angle according to claim 1, wherein the clamping walls (12) are of a two-layer structure, each layer is of a semicircular structure, a containing cavity is formed between the clamping walls (12) of the two-layer structure for installing the replaceable chuck (11), the diameter of the containing cavity is larger than that of the replaceable chuck (11), and the height of the containing cavity is equal to the thickness of the replaceable chuck (11).

3. A monkey wrench capable of rotating by a small angle according to claim 1, wherein the adjusting assembly (3) comprises a pawl (31) and a torsion spring (32) arranged on the pawl (31), one end of the changeable cartridge (11) forms a gear tooth structure, the end of the pawl (31) is clamped on the tooth surface of the gear tooth structure, and the handle (2) is rotated to drive the torsion spring (32) to drive the pawl (31) and further drive the changeable cartridge (11) to rotate along the holding wall (12).

4. A monkey wrench capable of rotating by a small angle according to claim 2, wherein a sliding groove is provided on the inner peripheral wall of one layer of said holding wall (12), a sliding block (15) is provided on the peripheral wall of said changeable collet (11), and said sliding block (15) is slidably disposed in the sliding groove.

5. The adjustable wrench capable of rotating by a small angle according to claim 3, wherein a U-shaped bayonet is formed at the other end of the replaceable chuck (11), and the U-shaped bayonet is opposite to the gear tooth structure.

6. The adjustable wrench capable of rotating by a small angle according to claim 4, wherein the clamping wall (12) is provided with a clamping groove (13).

7. A monkey wrench capable of rotating by a small angle according to claim 6, characterised in that said slot (13) is an open polygonal structure.

8. A diagonal wrench as claimed in claim 6, wherein the retaining wall (12) is provided with a locking member (14).

9. A diagonal wrench able to rotate through a small angle according to claim 3, characterised in that said adjustment assembly (3) further comprises a fixing member (33) provided at the other end of said pawl (31).

10. The adjustable wrench capable of rotating by a small angle according to claim 1, wherein the handle (2) comprises a holding portion (21), a connecting portion (22) formed at one end of the holding portion (21), and a hanging portion (23) formed at the other end of the holding portion (21), the connecting portion (22) is integrally formed with the clamping wall (12), and the hanging portion (23) is provided with a hanging hole (24).