Bidirectional ratchet wrench

Abstract

The utility model relates to the technical field of wrenches, in particular to a bidirectional ratchet wrench which comprises a ratchet seat, a ratchet ring mounting through hole is formed in the middle of the ratchet seat, and a containing through hole with an arc-shaped section is formed in the lower portion of the ratchet ring mounting through hole and formed by extending the ratchet ring mounting through hole downwards. An annular concave shoulder is arranged at one end of the ratchet ring mounting through hole; a first step surface is formed on the bottom surface of the annular concave shoulder; a ratchet ring is mounted in the ratchet mounting through hole, a limiting ring is arranged at the end, located on the annular concave shoulder, of the outer side wall of the ratchet ring, and an annular limiting block is arranged at the other end of the outer side wall of the ratchet ring; a first stop block is arranged at the lower end of the limiting ring and installed at one end in the containing through hole, and a second stop block is arranged at the other end in the containing through hole. The utility model provides a bidirectional ratchet wrench, which improves the production efficiency and prolongs the service life by improving the shape of a containing groove in the bidirectional ratchet wrench and simplifying all components in the bidirectional ratchet wrench.

Description

TECHNICAL FIELD

[0001] The utility model relates to spanner technical field, concretely relates to a bidirectional ratchet spanner. BACKGROUND

[0002] The ratchet spanner is a kind of hand-operated screw tightening and loosening tool, and through the cooperation of internal ratchet assembly and brake assembly, the installation or disassembly operation is carried out by continuously rotating spanner handle, which is convenient to use and high in efficiency;The bidirectional ratchet spanner can control the rotatable direction of ratchet through the cooperation of internal ratchet assembly, brake assembly and switching piece.

[0003] Therefore, the bidirectional ratchet spanner is provided with multiple fine parts, and the spanner body needs to be installed with these fine parts, which makes the bidirectional ratchet spanner higher in manufacturing cost, more complex in assembly production and lower in production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model provides a bidirectional ratchet spanner, which improves the shape of ratchet seat in spanner body of bidirectional ratchet spanner and simplifies each component in bidirectional ratchet spanner to improve production efficiency and prolong service life.

[0005] In order to solve the above technical problems, the utility model solves them by the following technical schemes:

[0006] A bidirectional ratchet spanner, which comprises a ratchet seat, a ratchet ring installation through-hole is arranged in the middle of the ratchet seat, a containing through-hole in arc cross section is arranged in the lower part of the ratchet ring installation through-hole and extends downward from the ratchet ring installation through-hole;An annular concave shoulder is arranged at one end of the ratchet ring installation through-hole, and a first step surface is formed on the bottom surface of the annular concave shoulder;A ratchet ring is installed in the ratchet installation through-hole, a limiting ring is arranged on the outer side wall of the ratchet ring at one end of the annular concave shoulder, and an annular limiting block is arranged on the outer side wall of the ratchet ring at the other end;A first stop block is arranged at the lower end of the limiting ring, the first stop block is installed at one end in the containing through-hole, and a second stop block is arranged at the other end in the containing through-hole;A second step surface is arranged on the first stop block, the bottom surfaces of the second step surface and the first step surface are flush, and together form an annular groove for placing the limiting ring.

[0007] In the utility model, the ratchet ring installation through-hole and the containing through-hole are both through-holes in arc cross section, which are simple in shape and smooth in edge, so that the processing, assembly and disassembly of the bidirectional ratchet spanner are more simple and convenient, thereby being more conducive to controlling production quality and improving production efficiency;When the staff uses it, all side walls are arc surfaces, which can effectively reduce the wear of internal components to prolong the service life.

[0008] The axial position of the ratchet ring is achieved by the limiting ring and the annular limiting block on the ratchet ring. The internal components of the bidirectional ratchet wrench are protected by the cooperation of the first and second stop blocks with the limiting ring and the annular limiting block, preventing the internal components from being directly exposed to the external environment and preventing dust and other foreign matter from entering the wrench to damage the internal components, thereby prolonging the service life of the bidirectional ratchet wrench.

[0009] As a preferred, a brake tooth block is installed in the accommodating through hole. The brake tooth block is used to control the rotatable direction of the ratchet ring. When used by workers, the wrench handle can be continuously rotated to make the ratchet ring rotate in one direction, thereby performing installation or disassembly work.

[0010] As a preferred, a ratchet part engaged with the ratchet ring is provided on the brake tooth block on the side of the ratchet ring, and the lower end of the brake tooth block is a positioning part, and the bottom surface of the positioning part is a smooth concave surface. The brake tooth block is installed in the accommodating through hole and is used to control the rotatable direction of the ratchet ring. At the positioning part of the lower end of the brake tooth block, the brake tooth block can be pushed to engage with the ratchet part of the ratchet ring, thereby limiting the rotation of the ratchet ring.

[0011] As a preferred, an installation groove is provided below the accommodating through hole, and a switching piece is provided in the installation groove. A through hole is provided on the side of the brake tooth block of the switching piece, and a resilient assembly is provided in the through hole and resiliently abuts against the switching piece and the brake tooth block at both ends.

[0012] One end of the resilient assembly resiliently abuts against the positioning part of the brake tooth block. When used, workers can change the resilient abutting direction of the resilient assembly in the switching piece to the positioning part, thereby achieving active control of the brake tooth block to change the rotatable direction of the ratchet ring.

[0013] As a preferred, the resilient assembly includes a pin block and a spring provided in the pin block. The top end and the bottom end of the resilient assembly resiliently abut against the bottom of the through hole and the positioning part of the brake tooth block, respectively. The spring resiliently abuts against the bottom of the pin block and the bottom of the through hole at both ends.

[0014] Workers change the engagement direction of the brake tooth block to the ratchet ring by actuating the switching piece. When the ratchet ring rotates, if the rotation direction can push the brake tooth block so that the spring is compressed, the ratchet ring can rotate. If the rotation direction of the ratchet ring cannot make the brake tooth block move, the ratchet ring cannot rotate, thereby achieving installation or disassembly work.

[0015] As a preferred, an annular limiting groove is formed on the outer side wall of the ratchet ring and cooperates with the limiting ring. The limiting ring is a clasp spring, and the annular limiting groove can be used for the clasp spring to be clamped in to achieve axial positioning of the ratchet ring.

[0016] As preferred, the side wall of the near annular limiting block side of the annular limiting groove is flush with the annular groove bottom surface formed by the first step surface and the second step surface. The annular groove bottom surface formed by the annular limiting groove, the first step surface and the second step surface is flush, which is convenient for the limiting ring to be clamped, and the clamping spring is used to limit the ratchet ring, which is simple in structure and convenient for assembly and disassembly in the production process. Moreover, due to the simple structure, the annular limiting groove and the annular groove form a flat plane, and the limiting ring is tightly attached to the plane after installation, which can avoid damage caused by relative displacement of components during use, thereby prolonging the service life.

[0017] As preferred, the side surface of the near limiting ring side of the annular limiting block is flush with the surface of the ratchet seat, and the annular limiting block and the limiting ring form a limiting groove matched with the ratchet seat.

[0018] One side of the ratchet ring is provided with an annular limiting groove for clamping the limiting ring, and the other side is provided with an annular limiting block to further limit the axial displacement of the ratchet ring. As shown in the cross-sectional view, the part of the limiting ring clamped into the annular limiting groove protrudes from the annular limiting groove, and the protruding part and the annular limiting block together form a limiting groove on the ratchet ring to limit the ratchet seat, thereby enhancing the stability of the ratchet ring installed in the ratchet seat, and the structure is simple and convenient for installation and disassembly.

[0019] As preferred, the second stop block in the accommodating through hole is located on the inner side of the annular limiting block, and the outer surface of the second stop block is flush with the outer surface of the ratchet seat; the outer surface of the first stop block in the accommodating through hole is flush with the outer surface of the ratchet seat.

[0020] The outer surface of the second stop block is flush with the outer surface of the ratchet seat, so that the inner side surface of the annular limiting block can be the same plane, which is convenient for production; the annular limiting block limits the second stop block, and the second stop block isolates the internal components from the external environment to avoid damage caused by foreign matter entering; the outer surface of the first stop block is flush with the outer surface of the ratchet seat, and the upper part of the first stop block forms a concave arc-shaped recess, i.e. a second step surface, which forms an annular groove with the first step surface for clamping the limiting ring; the inner surfaces of the first stop block and the second stop block together limit the brake block.

[0021] The annular limiting groove, the annular limiting block, the first stop block, the second stop block and the limiting ring together limit and protect the internal components of the bidirectional ratchet wrench, which is simple in structure, convenient for processing and assembly, and conducive to improving production quality and efficiency, and also conducive to prolonging the service life of the bidirectional ratchet wrench itself.

[0022] As preferred, the lower part of the first stop block is provided with a first circular arc groove for facilitating rotation of the switching piece, the inner side of the first circular arc groove of the first stop block is provided with a second circular arc groove, and the first circular arc groove and the second circular arc groove together limit the switching piece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 Structure diagram of a bidirectional ratchet wrench in embodiment 1;

[0024] Figure 2 Structure diagram of a ratchet seat of a bidirectional ratchet wrench in embodiment 1;

[0025] Figure 3 Structure diagram of another direction of a ratchet seat of a bidirectional ratchet wrench in embodiment 1;

[0026] Figure 4 Sectional view of a ratchet seat of a bidirectional ratchet wrench in embodiment 1;

[0027] Figure 5 Exploded structure diagram of a bidirectional ratchet wrench in embodiment 1;

[0028] Figure 6 Internal component diagram of a bidirectional ratchet wrench in embodiment 1;

[0029] Figure 7 Internal component diagram of another direction of a bidirectional ratchet wrench in embodiment 1;

[0030] Figure 8 Sectional view of a bidirectional ratchet wrench in embodiment 1;

[0031] Figure 9 Structure diagram of a first stop block of a bidirectional ratchet wrench in embodiment 1. DETAILED DESCRIPTION

[0032] For further understanding of the content of the present application, the present application is described in detail in combination with embodiments. It should be understood that the embodiments are only used to explain the present application but not to limit the present application.

[0033] Embodiment 1

[0034] The present embodiment 1 provides a bidirectional ratchet wrench, such as Figures 1-9As shown, including the ratchet seat 100, the middle part of the ratchet seat 100 is provided with a ratchet ring mounting hole 210, and the lower part of the ratchet ring mounting hole 210 is provided with a containing hole 230 which is extended downward from the ratchet ring mounting hole 210 and has an arc-shaped cross section; one end of the ratchet ring mounting hole 210 is provided with an annular shoulder 220, and the bottom surface of the annular shoulder 220 forms a first stepped surface 410; a ratchet ring 110 is installed in the ratchet ring mounting hole 210, and a limiting ring 120 is arranged on the outer side wall of the ratchet ring 110 at one end of the annular shoulder 220; the other end of the outer side wall of the ratchet ring 110 is provided with an annular limiting block 620; the lower end of the limiting ring 120 is provided with a first stop block 510, the first stop block 510 is installed at one end in the containing hole 230, and the other end of the containing hole 230 is provided with a second stop block 520; the first stop block 510 is provided with a second stepped surface 511, the bottom surface of the second stepped surface 511 is flush with the first stepped surface 410, and the second stepped surface 511 and the first stepped surface 410 together form an annular groove for placing the limiting ring 120.

[0035] In the embodiment, the ratchet ring mounting hole 210 and the containing hole 230 are both arc-shaped through holes, which are simple in shape and smooth in edge, making the processing, assembly and disassembly of the bidirectional ratchet wrench more simple and convenient, thereby being more conducive to controlling production quality and improving production efficiency; and when the staff uses it, all the side walls are arc surfaces, which can effectively reduce the wear of the internal components to prolong the service life.

[0036] Through the limiting ring 120 and the annular limiting block 620 on the ratchet ring 110, the axial position of the ratchet ring 110 is limited; through the cooperation of the first stop block 510, the second stop block 520, the limiting ring 120 and the annular limiting block 620, the internal components of the bidirectional ratchet wrench are protected, the internal components are prevented from being directly exposed to the external environment, dust and other foreign matters are prevented from entering the wrench to damage the internal components, thereby prolonging the service life of the bidirectional ratchet wrench.

[0037] In the embodiment, a brake tooth block 530 is installed in the containing hole 230. The brake tooth block 530 is used to control the rotatable direction of the ratchet ring 110, and the staff can continuously rotate the wrench handle when using it to make the ratchet ring 110 rotate unidirectionally to perform installation or disassembly work.

[0038] In the embodiment, the brake tooth block 530 is provided with a ratchet part 531 engaged with the ratchet ring 110 on the side of the ratchet ring 110, and the lower end of the brake tooth block 530 is a positioning part 532, and the bottom surface of the positioning part 532 is a smooth concave surface. The brake tooth block 530 is installed in the containing hole 230 and is used to control the rotatable direction of the ratchet ring 110, and at the positioning part 532 of the lower end of the brake tooth block 530, the brake tooth block 530 can be pushed to make the ratchet part 531 engaged with the ratchet ring 110, thereby limiting the rotation of the ratchet ring 110.

[0039] In the embodiment, the mounting groove 240 is arranged below the accommodating through hole 230, the switching piece 550 is arranged in the mounting groove 240, the accommodating hole 551 is arranged on the side of the switching piece 550 relative to the brake tooth block 530, and the elastic abutting assembly 540 is arranged in the accommodating hole 551 and elastically abuts on both ends of the switching piece 550 and the brake tooth block 530.

[0040] One end of the elastic abutting assembly 540 elastically abuts on the positioning portion 532 of the brake tooth block 530, in use, the switching piece 550 is actuated by the worker, the elastic abutting direction of the elastic abutting assembly 540 in the switching piece 550 to the positioning portion 532 is changed, the movable control of the brake tooth block 530 is realized, and the rotatable direction of the ratchet ring 110 is changed.

[0041] In the embodiment, the elastic abutting assembly 540 comprises the pin block 541 and the spring 542 arranged in the pin block 541, the top end and the bottom end of the elastic abutting assembly 540 elastically abut on the bottom of the accommodating hole 551 and the positioning portion 532 of the brake tooth block 530 respectively, and the two ends of the spring 542 elastically abut on the bottom of the pin block 541 and the bottom of the accommodating hole 551 respectively.

[0042] The worker changes the meshing direction of the brake tooth block 530 to the ratchet ring 110 by actuating the switching piece 550, when the ratchet ring 110 rotates, if the rotation direction can push the brake tooth block 530 so that the spring 542 is compressed, the ratchet ring 110 can rotate, if the rotation direction of the ratchet ring 110 cannot make the brake tooth block 530 move, the ratchet ring 110 cannot rotate, and the installation or dismounting operation is realized.

[0043] In the embodiment, the annular limiting groove 610 is formed on the outer side wall of the ratchet ring 110 and cooperates with the limiting ring 120. The annular limiting groove 610 is used for clamping the limiting ring 120, so that the axial limiting of the ratchet ring 110 is realized.

[0044] In the embodiment, the side wall of the annular limiting groove 610 near the annular limiting block 620 side is flush with the annular groove bottom surface formed by the first stepped surface 410 and the second stepped surface 511. The annular limiting groove 610 and the annular groove bottom surface formed by the first stepped surface 410 and the second stepped surface 511 are flush, the limiting ring 120 is clamped, the clamping spring is used to limit the ratchet ring 110, the structure is simple, the assembly and disassembly are simple and convenient in the production process, the structure is simple, the annular limiting groove 610 and the annular groove form a flat plane, the limiting ring 620 is tightly attached to the plane after installation, the damage caused by the relative displacement of the components in the use process is avoided, and the service life is prolonged.

[0045] In the embodiment, the side surface of the proximal limiting ring 120 of the annular limiting block 620 is flush with the surface of the ratchet seat 100, and the annular limiting block 620 and the limiting ring 120 form a limiting groove matched with the ratchet seat 100.

[0046] One side of the ratchet ring 110 is provided with an annular limiting groove 610 for clamping the limiting ring 120, and the other side is provided with an annular limiting block 620 to further limit the axial displacement of the ratchet ring 110, as shown in the cross-sectional view. Figure 8 As shown in the cross-sectional view, the part of the limiting ring 120 clamped into the annular limiting groove 610 protrudes from the annular limiting groove 610, and the protruding part and the annular limiting block 620 together form a limiting groove on the ratchet ring 110 for limiting the ratchet seat 100, thereby enhancing the stability of the ratchet ring 110 installed in the ratchet seat 100, and the structure is simple, convenient to install and disassemble.

[0047] In the embodiment, the second stop block 520 in the accommodating through hole 230 is located inside the annular limiting block 620, and the outer surface of the second stop block 520 is flush with the outer surface of the ratchet seat 100; the outer surface of the first stop block 510 in the accommodating through hole 230 is flush with the outer surface of the ratchet seat 100.

[0048] The outer surface of the second stop block 520 is flush with the outer surface of the ratchet seat 100, so that the inner side surface of the annular limiting block 620 can be in the same plane, facilitating production; the annular limiting block 620 limits the second stop block 520, and the second stop block 520 isolates the internal components from the external environment, avoiding damage to the internal components caused by foreign matter; the outer surface of the first stop block 510 is flush with the outer surface of the ratchet seat 100, and the upper part of the first stop block 510 forms a concave recess, i.e., a second stepped surface 511, which together with the first stepped surface 410 forms an annular groove for clamping the limiting ring 120; the inner surfaces of the first stop block 510 and the second stop block 520 together limit the brake tooth block 530.

[0049] The annular limiting groove 610, the annular limiting block 620, the first stop block 510, the second stop block, and the limiting ring 120 together limit and protect the internal components of the bidirectional ratchet wrench, and the structure is simple, facilitating processing and assembly, which is conducive to improving production quality and efficiency, and also conducive to prolonging the service life of the bidirectional ratchet wrench itself.

[0050] In the embodiment, the lower part of the first stop block 510 is provided with a first circular arc groove 810 for facilitating rotation of the switching piece 550, and the inner side of the first circular arc groove 910 of the first stop block 510 is provided with a second circular arc groove 820, and the first circular arc groove 810 and the second circular arc groove 920 together limit the switching piece.

[0051] It is easy to understand that the person skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0052] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive. The embodiments shown are only part of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the present application, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creativity, and all of them should belong to the protection scope of the present application.

Claims

1. A bidirectional ratchet wrench characterized by: The ratchet seat (100) is provided with a ratchet ring mounting through hole (210) in the middle, and a containing through hole (230) extending downward from the ratchet ring mounting through hole (210) and having an arc-shaped cross section is arranged at the lower part of the ratchet ring mounting through hole (210); an annular concave shoulder (220) is arranged at one end of the ratchet ring mounting through hole (210), and a first stepped surface (410) is formed on the bottom surface of the annular concave shoulder (220); a ratchet ring (110) is mounted in the ratchet ring mounting through hole (210), a limiting ring (120) is arranged on the outer side wall of the ratchet ring (110) at one end of the annular concave shoulder (220), and an annular limiting block (620) is arranged on the outer side wall of the ratchet ring (110) at the other end; a first stop block (510) is arranged at the lower end of the limiting ring (120) and is mounted in one end of the containing through hole (230), a second stop block (520) is arranged at the other end of the containing through hole (230), a second stepped surface (511) is arranged on the first stop block (510), the bottom surfaces of the second stepped surface (511) and the first stepped surface (410) are flush, and the second stepped surface (511) and the first stepped surface (410) jointly form an annular groove for placing the limiting ring (120).

2. A bidirectional ratchet wrench according to claim 1, characterized in that: The containing through hole (230) is provided with a brake tooth block (530).

3. A bidirectional ratchet wrench according to claim 2, wherein: The brake tooth block (530) is provided with a ratchet portion (531) engaging with the ratchet ring (110) on the side of the ratchet ring (110), and the lower end of the brake tooth block (530) is a positioning portion (532), and the bottom surface of the positioning portion (532) is a smooth concave surface.

4. A bidirectional ratchet wrench according to claim 3, wherein: A mounting groove (240) is arranged below the containing through hole (230), the mounting groove (240) is provided with a switching piece (550), the switching piece (550) is provided with a containing hole (551) on the side of the brake tooth block (530), and the containing hole (551) is provided with a resilient assembly (540) resiliently abutting against the switching piece (550) and the brake tooth block (530) at both ends.

5. A bidirectional ratchet wrench according to claim 4, wherein: The resilient assembly (540) comprises a pin block (541) and a spring (542) arranged in the pin block (541), the top end and the bottom end of the resilient assembly (540) are resiliently abutted against the bottom of the containing hole (551) and the positioning portion (532) of the brake tooth block (530) respectively, and the two ends of the spring (542) are resiliently abutted against the bottom of the pin block (541) and the bottom of the containing hole (551) respectively.

6. A bidirectional ratchet wrench as defined in claim 1, wherein: An annular limiting groove (610) is formed on the outer side wall of the ratchet ring (110) and cooperates with the limiting ring (120).

7. A bidirectional ratchet wrench as claimed in claim 6, characterized in that: The side wall of the annular limiting groove (610) near the annular limiting block (620) is flush with the bottom surface of the annular groove formed by the first stepped surface (410) and the second stepped surface (511).

8. A bidirectional ratchet wrench as defined in claim 1, wherein: The side surface of the annular limiting block (620) near the limiting ring (120) is flush with the surface of the ratchet seat (100), and a limiting groove cooperating with the ratchet seat (100) is formed between the annular limiting block (620) and the limiting ring (120).

9. The bidirectional ratchet wrench of claim 1, wherein: The second stop block (520) in the accommodating through hole (230) is located at the inner side of the annular limiting block (620), and the outer surface of the second stop block (520) is flush with the outer surface of the ratchet seat (100); the outer surface of the first stop block (510) in the accommodating through hole (230) is flush with the outer surface of the ratchet seat (100).

10. The bidirectional ratchet wrench of claim 1, wherein: The lower part of the first stop block (510) is provided with a first circular arc groove (810), and the inner side of the first circular arc groove (810) of the first stop block (510) is provided with a second circular arc groove (820).

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