CN216422370U

CN216422370U - Novel ratchet wrench

Info

Publication number: CN216422370U
Application number: CN202123089791.4U
Authority: CN
Inventors: 董鹏
Original assignee: Zhaoyuan Hongrun Machinery Manufacturing Co ltd
Current assignee: Zhaoyuan Hongrun Machinery Manufacturing Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-03
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to the field of wrenches, in particular to a novel ratchet wrench, which comprises a handle, a plate body and a ratchet wheel inner core, wherein the plate body is fixedly connected with one end of the handle, the ratchet wheel inner core is connected with the plate body in a unidirectional rotating manner, the ratchet wheel inner core is provided with a polygonal hole, the ratchet wheel inner core is provided with a plurality of grooves along a circumferential array, and the plate body is connected with a stop pin in a sliding manner; when the ratchet inner core has a movement trend of rotating along the first direction, the stop pin slides to be pressed against the bottom surface of the groove, and when the ratchet inner core has a movement trend of rotating along the second direction, the stop pin slides out of the groove along the side wall of the groove. A novel ratchet spanner, can bear bigger moment of torsion.

Description

Novel ratchet wrench

Technical Field

The utility model relates to a spanner especially relates to a novel ratchet spanner.

Background

The ratchet wrench is a dismounting tool which can rotate in one direction and is used for screwing bolts. The prior art ratchet wrench is disclosed in CN211661911U, entitled easy-to-machine ratchet wrench, and the functional components for realizing unidirectional rotation are ratchet wheel and ratchet teeth, but the conventional ratchet wheel and ratchet teeth are weak, and can be damaged when the torque applied to the ratchet wrench is large, so that the whole wrench can be out of work.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects existing in the prior art, the utility model provides a novel ratchet wrench.

The technical scheme is as follows: in order to achieve the purpose, the novel ratchet wrench comprises a handle, a plate body and a ratchet inner core, wherein the plate body is fixedly connected to one end of the handle, the ratchet inner core is connected with the plate body in a one-way rotating mode, the ratchet inner core is provided with a polygonal hole, the ratchet inner core is provided with a plurality of grooves along the circumferential direction, and the plate body is connected with a stop pin in a sliding mode; when the ratchet inner core has a movement trend of rotating along the first direction, the stop pin slides to be pressed against the bottom surface of the groove, and when the ratchet inner core has a movement trend of rotating along the second direction, the stop pin slides out of the groove along the side wall of the groove.

Preferably, the plate body comprises a fixing portion and a ratchet sleeve; the ratchet wheel is characterized in that the fixing portion is provided with an arc concave portion, the ratchet wheel sleeve extends from one side of the fixing portion to the other side of the fixing portion, the ratchet wheel sleeve and the concave portion are enclosed to form a circular groove, the ratchet wheel inner core is rotatably connected into the circular groove, flanges are arranged at two ends of the ratchet wheel inner core, and the flanges are closed on the end face of the circular groove.

Preferably, the ratchet sleeve is formed by bending a plate.

Preferably, the fixing part is provided with a round hole, a spring is arranged in the round hole, the stop pin is connected in the round hole in a sliding mode, and under the action of the spring, the stop pin always has a movement trend of sliding out of the round hole.

Preferably, the stop pin comprises an upper portion and a lower portion which are cylindrical, the diameter of the upper portion is larger than that of the lower portion, and the lower portion is connected with the spring sleeve.

Preferably, the handle is a telescopic rod consisting of a first rod piece and a second rod piece, and the outer surfaces of the first rod piece and the second rod piece are provided with knurls.

Preferably, one end of the second rod is provided with a connecting sleeve, and the connecting sleeve is in threaded connection with the plate body.

The utility model discloses a novel ratchet spanner has following technological effect at least:

(1) the novel ratchet wrench changes the existing ratchet structure, the ratchet mechanism formed by matching the stop pin and the groove can bear larger torque, and is not easy to damage;

(2) the ratchet sleeve part of the novel ratchet wrench has the advantages of more compact structure, small volume, adaptability to more working environments and strong adaptability;

(3) the ratchet sleeve of the ratchet wrench is fixed by the fixing part and the ratchet sleeve through the bolt, and is convenient to detach and maintain.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the ratchet inner core of the present invention after being removed;

FIG. 3 is a schematic structural view of the ratchet sleeve of the present invention;

fig. 4 is a schematic structural view of the ratchet inner core of the present invention.

In the figure, 1, a handle; 2. a plate body; 3. a ratchet inner core; 4. a groove; 5. a stop pin; 6. a fixed part; 7. a ratchet sleeve; 8. a recess; 9. a circular groove; 10. a flange; 11. a spring; 12. an upper portion; 13. a lower portion; 14. a first bar member; 15. a second bar member; 16. a circular hole; 17. a connecting sleeve.

Detailed Description

The principles and features of the present invention will be described with reference to the accompanying fig. 1 to 4, wherein the examples are provided only for explaining the present invention and are not intended to limit the scope of the present invention.

A novel ratchet wrench comprises a handle 1, a plate body 2 and a ratchet inner core 3. The plate body 2 is fixedly connected to one end of the handle 1, and the ratchet wheel inner core 3 is connected with the plate body 2 in a unidirectional rotating mode. Specifically, the ratchet inner core 3 and the plate body 2 realize the function of unidirectional rotation through the cooperation of the stop pin 5 and the ratchet inner core 3. The ratchet inner core 3 is provided with a plurality of grooves 4 along the circumferential direction, and the number of the grooves 4 is twelve in the embodiment. The stop pin 5 is connected with the plate body 2 in a sliding manner, and the stop pin 5 can completely slide into the plate body 2 and also can slide into the groove 4 to prevent the ratchet inner core 3 from rotating in two directions relative to the plate body 2. When the inner ratchet core 3 has a movement trend of rotating along a first direction, the stop pin 5 slides to be pressed against the bottom surface of the groove 4, and when the inner ratchet core 3 has a movement trend of rotating along a second direction, the stop pin 5 slides out of the groove 4 along the side wall of the groove 4. The first direction and the second direction are opposite to each other. The stop pin 5 and the ratchet wheel inner core 3 have higher strength and can bear larger torque.

The plate body 2 comprises a fixing portion 6 and a ratchet sleeve 7, wherein the fixing portion 6 is formed by casting, and the ratchet sleeve 7 is formed by bending a plate. The ratchet sleeve 7 extends from one side of the fixing portion 6 to the other side, a concave portion 8 is arranged at one end of the fixing portion 6, and the ratchet sleeve 7 and the concave portion 8 are mutually enclosed to form a circular groove 9. The ratchet sleeve 7 is connected with the fixing part 6 through a bolt. The ratchet inner core 3 is rotatably connected in the circular groove 9. Flanges 10 are arranged at two axial ends of the ratchet wheel inner core 3, and the flanges 10 are matched with the end faces of the circular grooves 9 to form axial limiting.

The fixing part 6 is provided with a round hole 16, and a spring 11 is arranged in the round hole 16. The stop pin 5 comprises an upper part 12 and a lower part 13 which are cylindrical, the diameter of the upper part 12 is larger than that of the lower part 13, and the lower part 13 is sleeved with the spring 11. The stop pin 5 has a tendency to slide out of the circular hole 16 all the time under the action of the spring 11.

The handle 1 is a telescopic rod composed of a first rod piece 14 and a second rod piece 15, and the telescopic form of the first rod piece 14 and the second rod piece 15 can be any one of the existing telescopic forms. The first and

second pins

14 and 15 are each provided with knurling to increase the friction of the user when using the wrench. One end of the second rod member 15 is provided with a connecting sleeve 17, and the plate body 2 is screwed with the connecting sleeve 17. The outer diameter of the connecting sleeve 17 is larger than that of the second rod member 15, so that the connecting sleeve can bear larger torque.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a novel ratchet wrench, includes handle (1), plate body (2), ratchet inner core (3), plate body (2) fixed connection is in the one end of handle (1), ratchet inner core (3) and plate body (2) one-way swivelling joint, ratchet inner core (3) are provided with multilateral hole, its characterized in that: the ratchet wheel inner core (3) is provided with a plurality of grooves (4) in an array manner along the circumferential direction, and the plate body (2) is connected with a stop pin (5) in a sliding manner; when the ratchet wheel inner core (3) has a movement trend of rotating along a first direction, the stop pin (5) slides to be pressed against the bottom surface of the groove (4), and when the ratchet wheel inner core (3) has a movement trend of rotating along a second direction, the stop pin (5) slides out of the groove (4) along the side wall of the groove (4).

2. The novel ratchet wrench of claim 1, wherein: the plate body (2) comprises a fixing part (6) and a ratchet sleeve (7); the ratchet wheel is characterized in that the fixing portion (6) is provided with a circular-arc concave portion (8), the ratchet wheel sleeve (7) extends from one side of the fixing portion (6) to the other side, the ratchet wheel sleeve (7) and the concave portion (8) are enclosed to form a circular groove (9), the ratchet wheel inner core (3) is rotatably connected into the circular groove (9), flanges (10) are arranged at two ends of the ratchet wheel inner core (3), and the flanges (10) are combined on the end face of the circular groove (9).

3. The novel ratchet wrench of claim 2, wherein: the ratchet sleeve (7) is formed by bending a plate.

4. The novel ratchet wrench of claim 2, wherein: the fixing part (6) is provided with a round hole (16), a spring (11) is arranged in the round hole (16), the stop pin (5) is connected in the round hole (16) in a sliding mode, and under the action of the spring (11), the stop pin (5) always has a movement trend of sliding out of the round hole (16).

5. The novel ratchet wrench of claim 4, wherein: the stop pin (5) comprises an upper portion (12) and a lower portion (13) which are cylindrical, the diameter of the upper portion (12) is larger than that of the lower portion (13), and the lower portion (13) is connected with the spring (11) in a sleeved mode.

6. The novel ratchet wrench of claim 1, wherein: the handle (1) is a telescopic rod consisting of a first rod piece (14) and a second rod piece (15), and knurling is arranged on the outer surfaces of the first rod piece (14) and the second rod piece (15).

7. The novel ratchet wrench of claim 6, wherein: one end of the second rod piece (15) is provided with a connecting sleeve (17), and the connecting sleeve (17) is in threaded connection with the plate body (2).