Ratchet wrench for natural gas pipeline tapper

Abstract

The utility model relates to a ratchet wrench for a natural gas pipeline tapper. The ratchet wrench structurally comprises a ratchet head, a ratchet mechanism arranged in the ratchet head and a sealing cover arranged on the ratchet head. The ratchet mechanism comprises a ratchet core, a ratchet pawl used for adjusting the movement direction of the ratchet core, a locking ball matched with the ratchet pawl and a spring in pressed contact with the locking ball. The ratchet mechanism is high in practicability, the movement direction of the ratchet mechanism is controlled by adjusting the position of the ratchet pawl, and the ratchet mechanism is suitable for various occasions where the movement direction needs to be controlled. According to the utility model, the structure is simple, the number of parts is small, the failure rate is reduced, the reliability and the stability are high, and the service life of equipment is prolonged. According to the utility model, the operation is simple and convenient, the operation is more labor-saving by a user through the ratchet handle, and meanwhile, the comfort and efficiency of an operator are improved.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a ratchet wrench for a natural gas pipeline hole opener. Background Art

[0002] During the maintenance and installation of natural gas pipelines, specific tools are often required to handle various tasks of the pipeline. One of them is the opening of the pipeline, which is essential for connecting, repairing or expanding the pipeline. In order to meet this demand, the design and use of natural gas pipeline hole openers have become crucial. Among the many hole opener auxiliary tools, ratchet wrenches are highly favored due to their unique advantages. However, there are still some problems in the use of ratchet wrenches on the market. For example, some ratchet wrenches are inconvenient to operate; some ratchet wrenches are complicated to operate when adjusting the direction of movement, which affects the efficiency of use. Utility Model Content

[0003] The utility model aims to provide a ratchet wrench for a natural gas pipeline hole opener to solve the problems of inconvenient operation and low efficiency of the existing ratchet wrench.

[0004] The utility model is implemented as follows: a ratchet wrench for a natural gas pipeline hole opener, the structure of which includes a ratchet head, a ratchet mechanism arranged in the ratchet head and a cover arranged on the ratchet head; the ratchet mechanism includes a ratchet core, a ratchet pawl for adjusting the movement direction of the ratchet core, a locking ball matched with the ratchet pawl and a spring in pressure contact with the locking ball.

[0005] Furthermore, the inner side of the ratchet core is provided with an inner gear ring for connecting with the hole opener handle, and the outer side is provided with an outer gear ring.

[0006] Furthermore, ratchet teeth are provided at both front and rear ends of the ratchet pawl adjacent to the ratchet core, and two ball sockets for clamping the locking ball are provided on the side of the ratchet pawl away from the ratchet core, and the ratchet teeth are used to cooperate with the outer gear ring.

[0007] Furthermore, a slide groove is provided on one side of the ratchet pawl adjacent to the ratchet head, and a slide rail cooperating therewith is provided on the ratchet head.

[0008] Furthermore, a pressing block is provided on the ratchet head, and a groove for accommodating the locking ball and the spring is provided at the lower end of the pressing block.

[0009] Furthermore, it also includes a ratchet handle connected to the ratchet head.

[0010] Furthermore, the ratchet handle includes a connecting handle connected to the ratchet head and an extension handle connected to the connecting handle.

[0011] The utility model has strong practicality. By adjusting the position of the ratchet pawl, the movement direction of the ratchet mechanism can be controlled, so that it is suitable for various occasions where the movement direction needs to be controlled. The utility model has a simple structure, a small number of parts, and a reduced failure rate. It not only has high reliability and stability, but also prolongs the service life of the equipment. The utility model is easy to operate. The user can adjust the position of the ratchet pawl by operating the ratchet handle, thereby controlling the movement direction of the ratchet mechanism; the user can use the ratchet handle to make the operation more labor-saving, and also increase the comfort and efficiency of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a top view structural schematic diagram of the utility model.

[0014] Figure 3 yes Figure 2 AA cross-sectional view.

[0015] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle.

[0016] Figure 5 It is a structural schematic diagram of the utility model in a decomposed state.

[0017] In the figure: 1. ratchet head, 2. ratchet core, 3. ratchet pawl, 4. locking ball, 5. spring, 6. cover, 7. ratchet handle, 8. pressure block, 11. joint, 12. slide rail, 21. inner gear ring, 22. outer gear ring, 31. ratchet teeth, 32. ball socket, 71. connecting handle, 72. extension handle. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 3 As shown, the utility model comprises a ratchet head 1 , a ratchet mechanism arranged in the ratchet head 1 , and a cover 6 arranged on the ratchet head 1 .

[0019] like Figure 4 As shown, the ratchet mechanism includes a ratchet core 2, a ratchet pawl 3 for adjusting the movement direction of the ratchet core 2, a locking ball 4 cooperating with the ratchet pawl 3, and a spring 5 in pressure contact with the locking ball 4.

[0020] like Figure 5 As shown, a cavity for accommodating the ratchet core 2 is provided in the middle of the ratchet head 1 , a through hole for clamping the ratchet core 2 is provided at the bottom of the cavity of the ratchet head 1 , and joints 11 are provided at opposite ends of the ratchet head 1 .

[0021] An inner gear ring 21 for connecting to the hole opener handle is provided on the inner side of the ratchet core 2, and an outer gear ring 22 is provided in the middle of the outer side of the ratchet core 2. The upper and lower parts of the outer side are smooth cylindrical surfaces, and the upper and lower parts of the outer side are respectively penetrated in the cover 6 and the ratchet head 1.

[0022] A through hole for passing the ratchet core 2 is provided on the cover 6, and the upper and lower parts of the ratchet core 2 are respectively connected to the through holes of the ratchet head 1 and the through holes of the cover 6, and the upper and lower ends of the ratchet core 2 are respectively flush with the outer end faces of the ratchet head 1 and the outer side faces of the cover 6, and the upper and lower end faces of the outer tooth ring 22 of the ratchet core 2 are respectively adjacent to the bottom face of the cavity of the ratchet head 1 and the inner side face of the cover 6.

[0023] A notch is provided at one end of the cavity of the ratchet head 1, and the ratchet pawl 3 is arranged at the notch. The side of the ratchet pawl 3 adjacent to the ratchet core 2 is an arc-shaped groove. The front and rear ends of one side of the arc-shaped groove are provided with ratchet teeth 31 that cooperate with the outer tooth ring 22 of the ratchet core 2. Two ball snap-in sockets 32 for clamping the locking ball 4 are provided on the side opposite to the arc-shaped groove. The two ball snap-in sockets 32 are adjacently arranged on both sides of the center line of the ratchet pawl 3. A slide groove is provided on the side of the ratchet pawl 3 adjacent to the ratchet head 1, and a slide rail 12 that cooperates with it is provided on the ratchet head 1. The ratchet pawl 3 can slide on the ratchet head 1 through the slide groove to adjust the ratchet teeth 31 in contact with the ratchet core 2, thereby realizing the control of the movement direction of the ratchet mechanism.

[0024] A pressure block 8 is also provided on the ratchet head 1, and a notch for accommodating the pressure block 8 is provided on the side adjacent to the ratchet pawl 3. The pressure block 8 is in an inverted L-shape as a whole, and a semicircular notch for accommodating the locking ball 4 and the spring 5 is provided at the lower end of the pressure block 8, and a semicircular notch corresponding thereto is provided on the ratchet head 1. When the pressure block 8 is installed on the ratchet head 1, the upper end of the protrusion on the upper side of the pressure block 8 is flush with the upper side of the ratchet head 1, and the upper side of the pressure block 8 is adjacent to the lower side of the cover 6.

[0025] The spring 5 is set under pressure, and the locking ball 4 is pushed by the spring 5 to be close to the ratchet pawl 3. When the ratchet pawl 3 is pushed backward, the ratchet teeth 31 at the front of the ratchet pawl 3 contact the outer tooth ring 22 of the ratchet core 2, and the locking ball 3 is located in the ball slot 32 on the front side. At this time, the ratchet core 2 can only rotate counterclockwise. When the ratchet pawl 3 is pushed forward, the ratchet teeth 31 at the rear of the ratchet pawl 3 contact the outer tooth ring 22 of the ratchet core 2, and the locking ball 3 is located in the ball slot 32 on the front side. At this time, the ratchet core 2 can only rotate clockwise.

[0026] Corresponding through holes are provided on the ratchet head 1 and the cover 6, and standard parts are inserted through the through holes of the ratchet head 1 and the cover 6 to fix the cover 6 on the ratchet head 1. When the cover 6 is covered on the ratchet head 1, the upper end of the cover 6 is flush with the ratchet head 1.

[0027] The outer ends of the two joints 11 are connected with ratchet handles 7, and the outer ends of the two joints 11 are provided with external threads, and the end connected to the ratchet handle 7 is provided with an internal threaded hole matched with the ratchet handle 7. The connection mode between the ratchet handle 7 and the joint 11 can also be a plug-in connection or a locking pin connection.

[0028] The ratchet handle 7 includes a connecting handle 71 connected to the joint 11 and an extension handle 72 connected to the connecting handle. One end of the connecting handle 71 is provided with an external thread, and the other end is provided with an internal thread. One end of the extension handle 72 is provided with an internal thread hole, and the extension handle 72 can also be directly connected to the joint 11. The connecting handle 71 increases the force arm of the ratchet handle 7, making the ratchet wrench easier to use.

[0029] When in use, insert the handle of the hole opener into the ratchet core 2, adjust the position of the ratchet pawl 3, and the movement direction of the ratchet mechanism can be controlled. When the ratchet pawl 3 is pushed backward, the ratchet teeth 31 at the front of the ratchet pawl 3 contact the outer tooth ring 22 of the ratchet core 2, and the locking ball 3 is located in the ball slot 32 on the front side. At this time, the ratchet core 2 can only rotate counterclockwise. When the ratchet pawl 3 is pushed forward, the ratchet teeth 31 at the rear of the ratchet pawl 3 contact the outer tooth ring 22 of the ratchet core 2, and the locking ball 3 is located in the ball slot 32 on the front side. At this time, the ratchet core 2 can only rotate clockwise. This design allows the ratchet mechanism to be flexible and controllable during use, and is suitable for various occasions where the direction of movement needs to be controlled.

Claims

1. A ratchet wrench for a natural gas pipeline hole opener, characterized in that: It includes a ratchet head, a ratchet mechanism arranged in the ratchet head and a cover arranged on the ratchet head; the ratchet mechanism includes a ratchet core, a ratchet pawl for adjusting the movement direction of the ratchet core, a locking ball matched with the ratchet pawl and a spring in pressure contact with the locking ball.

2. The ratchet wrench for a natural gas pipeline hole opener according to claim 1, characterized in that: The inner side of the ratchet core is provided with an inner gear ring for connecting with the hole opener handle, and the outer side is provided with an outer gear ring.

3. The ratchet wrench for a natural gas pipeline hole opener according to claim 2, characterized in that: Ratchet teeth are provided at both front and rear ends of the ratchet pawl adjacent to the ratchet core, and two ball sockets for clamping the locking ball are provided on the side of the ratchet pawl away from the ratchet core, and the ratchet teeth are used to cooperate with the outer gear ring.

4. The ratchet wrench for a natural gas pipeline hole opener according to claim 1, characterized in that: A slide groove is provided on one side of the ratchet pawl adjacent to the ratchet head, and a slide rail cooperating with the ratchet head is provided on the ratchet head.

5. The ratchet wrench for a natural gas pipeline hole opener according to claim 1, characterized in that: A pressing block is also arranged on the ratchet head, and a groove for accommodating the locking ball and the spring is opened at the lower end of the pressing block.

6. The ratchet wrench for a natural gas pipeline hole opener according to claim 1, characterized in that: Also included is a ratchet handle connected to the ratchet head.

7. The ratchet wrench for a natural gas pipeline hole opener according to claim 6, characterized in that: The ratchet handle comprises a connecting handle connected to the ratchet head and an extension handle connected to the connecting handle.

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