Ratchet wrench stable in meshing
Patent Information
- Application Number
- CN202420893213.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-27
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-27
AI Technical Summary
After long-term use of existing ratchet wrench, the meshing degree between the ratchet and the pawl is reduced, resulting in instability, prone to loosening and positional offset, reducing the use effect and stability.
By setting limit sliding rings, limit rods, balls and auxiliary components, the stable engagement between the ratchet and the pawl is ensured. The limit sliding ring plays a limiting role outside the limiting rod, and the balls rotate simultaneously in the arc groove. The auxiliary rod limits the pawls to improve engagement stability.
It improves the use effect and stability of the ratchet wrench, extends the service life, enhances the practicality and stability of the device, and avoids loosening and position offset problems.
Smart Images
Figure CN222134821U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ratchet wrenches, and in particular to a ratchet wrench with stable engagement. Background Art
[0002] The patent with the published authorization announcement number CN207077369U discloses a ratchet wrench: it includes a wrench body and a handle, the wrench body is provided with a mounting hole penetrating through the center of the two end faces of the wrench body, a ratchet is fitted in the mounting hole, and a connecting portion matching a screw or a nut is provided on the end face of at least one end of the ratchet; a receiving groove connected to the mounting hole is provided in the wrench body, a pawl is fitted in the receiving groove, the pawl is provided with ratchet teeth, and an elastic member is provided in the receiving groove, an arc-shaped notch matching the circumference of the ratchet is provided on a side wall of the pawl close to the ratchet, and the ratchet teeth are arranged on the inner wall of the arc-shaped notch; an inner side wall of the receiving groove away from the ratchet is set as a plane, and a side wall of the pawl away from the ratchet is set as a plane that fits the plane of the inner side wall of the receiving groove away from the ratchet; the center line of the handle is perpendicular to and intersects with the axis of the ratchet, the ratchet wrench can withstand large torque and is easy to assemble.
[0003] When the ratchet wrench is used to a certain extent, the meshing degree between the ratchet and the pawl will gradually decrease, which may cause the ratchet wrench to become unstable during subsequent use, thereby reducing the effectiveness of the ratchet wrench. However, the ratchet wrench in the above patent does not provide a solution to this problem.
[0004] For this purpose, the present application proposes a ratchet wrench with stable engagement. Utility Model Content
[0005] The present application proposes a ratchet wrench with stable engagement to solve the problems raised in the above-mentioned background technology; when the ratchet rotates, the limit slide ring will play a limiting role on the outside of the limit rod, so that the limit rod rotates synchronously with the ratchet on the inside of the limit slide ring, and at the same time, the ball in the mounting block also rotates synchronously in place in the arc groove to limit the rotation of the ratchet, so as to avoid the loosening and position displacement of the ratchet when rotating after long-term use, resulting in unstable engagement between the ratchet and the pawl. Therefore, through the arrangement of the connecting component, the limit component and the sliding component, the engagement between the ratchet and the pawl is made more stable, which not only improves the use effect and practicability, but also enhances the stability of the ratchet wrench and extends the service life of the ratchet wrench, thereby greatly improving the practicability of the device.
[0006] In order to achieve the above purpose, this application adopts the following technical solutions:
[0007] A ratchet wrench with stable engagement comprises a handle, the top end of the handle is fixedly connected to a shell, the outside of the handle is provided with a thread, the inside of the shell is fixedly connected to a cylinder, the outside of the cylinder is fixedly connected to a round block, the inside of the shell is rotatably connected to a rotating assembly, the rotating assembly comprises a ratchet, the ratchet is rotatably connected to the inside of the shell, the outside of the round block is rotatably connected to a pawl, and the pawl and the ratchet are meshed and connected.
[0008] As a preferred embodiment, the outside of the cylinder is rotatably connected with a connecting assembly, and the connecting assembly includes a connecting block, the connecting block is rotatably connected to the outside of the cylinder and is located on one side of the block, the outside of the connecting block is fixedly connected with a connecting plate, and the outside of the connecting plate is fixedly connected with a connecting rod;
[0009] By connecting the connecting block, the connecting plate and the connecting rod, the pawl and the ratchet wheel are limited, thereby improving the practicability of the device.
[0010] As a preferred embodiment, a limit assembly is arranged inside the ratchet, and the limit assembly includes a limit groove, the limit groove is arranged inside the ratchet, the limit groove is fixedly connected to a limit rod inside, a limit slide ring is arranged outside the limit rod, and the outside of the limit slide ring is fixedly connected to an end of the connecting rod away from the connecting plate;
[0011] The limiting sliding ring plays a limiting role outside the limiting rod, so that the limiting rod rotates synchronously with the ratchet wheel inside the limiting sliding ring, thereby improving the practicability of the device.
[0012] As a preferred embodiment, the outside of the limiting slide ring is fixedly connected with a sliding assembly, and the sliding assembly includes a mounting block, and the two mounting blocks are fixedly connected to the outside of the limiting slide ring, and the inside of the limiting groove is provided with two arc grooves, and balls are rotatably connected between the two arc grooves and the mounting blocks;
[0013] The balls in the mounting block rotate synchronously in situ in the arc groove to limit the rotation of the ratchet wheel, thereby improving the practicability of the device.
[0014] As a preferred embodiment, a movable component is disposed inside the housing, and the movable component includes a spring, the spring is disposed inside the housing, a sleeve is disposed outside the spring, and the top end of the sleeve is in contact with the outside of the pawl;
[0015] Through the setting of the sleeve, the top end of the sleeve is arc-shaped and is made of aluminum alloy, which is a light and durable material and is suitable for occasions where weight reduction is required, thereby improving the practicality of the device.
[0016] As a preferred embodiment, the interior of the housing is fixedly connected with an auxiliary component, the auxiliary component includes a fixed block, two of the fixed blocks are fixedly connected to the interior of the housing, the exteriors of the two fixed blocks are fixedly connected with auxiliary rods, and the exteriors of the two auxiliary rods are in contact with the exterior of the pawl;
[0017] By setting the auxiliary rod, the pawl can be limited when moving, thereby improving the practicability of the device.
[0018] Beneficial effects of this application:
[0019] 1. A ratchet wrench with stable engagement, when the ratchet rotates, the limit slide ring will play a limiting role on the outside of the limit rod, so that the limit rod rotates synchronously with the ratchet on the inner side of the limit slide ring, and at the same time, the ball in the mounting block also rotates in situ in the arc groove synchronously, so as to limit the rotation of the ratchet, thereby preventing the ratchet from being loosened and shifted in position after long-term use, resulting in unstable engagement between the ratchet and the pawl. Therefore, through the arrangement of the connecting component, the limit component and the sliding component, the engagement between the ratchet and the pawl is more stable, which not only improves the use effect and practicality, but also strengthens the stability of the ratchet wrench, prolongs the service life of the ratchet wrench, and greatly improves the practicality of the device;
[0020] 2. This ratchet wrench with stable engagement is provided with an auxiliary component, a fixed block and an auxiliary rod. The auxiliary rod can limit the pawl to a certain extent during the movement of the pawl, thereby achieving the effect of limiting the pawl, and further, making the engagement core between the ratchet and the pawl more stable, greatly improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the main body of the device of this application;
[0022] Figure 2 It is a schematic diagram of the interior of the device of the present application;
[0023] Figure 3 It is a schematic diagram of the internal side of the device of the present application;
[0024] Figure 4 For this application Figure 3 Enlarged view of point A in the middle.
[0025] Numbers in the figure: 1. handle; 2. shell; 3. rotating assembly; 31. ratchet; 32. pawl; 4. movable assembly; 41. spring; 42. sleeve; 5. auxiliary assembly; 51. fixed block; 52. auxiliary rod; 6. cylinder; 7. round block; 8. connecting assembly; 81. connecting block; 82. connecting plate; 83. connecting rod; 9. limiting assembly; 91. limiting groove; 92. limiting rod; 93. limiting slide ring; 10. sliding assembly; 101. mounting block; 102. ball; 103. arc groove; 11. thread. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0027] Reference Figure 1-2 A ratchet wrench with stable engagement includes a handle 1, the top of the handle 1 is fixedly connected to a shell 2, the outside of the handle 1 is provided with a thread 11, the inside of the shell 2 is fixedly connected to a cylinder 6, and the outside of the cylinder 6 is fixedly connected to a round block 7.
[0028] Reference Figure 1-4 The housing 2 is internally rotatably connected with a rotating assembly 3, and the rotating assembly 3 includes a ratchet 31, which is rotatably connected to the housing 2, and a pawl 32 is externally rotatably connected to the round block 7, and the pawl 32 and the ratchet 31 are meshed and connected; the ratchet 31 and the pawl 32 are both made of steel, which has a certain hardness and wear resistance, so that it can withstand high-intensity operation. Steel products are the most common material for the ratchet 31, which has high hardness, good wear resistance, and low cost, and is widely used in various types of mechanical equipment.
[0029] Reference Figure 2-4 The outside of the cylinder 6 is rotatably connected to a connecting assembly 8, which includes a connecting block 81. The connecting block 81 is rotatably connected to the outside of the cylinder 6 and is located on one side of the round block 7. The outside of the connecting block 81 is fixedly connected to a connecting plate 82, and the outside of the connecting plate 82 is fixedly connected to a connecting rod 83. Through the connection of the connecting block 81, the connecting plate 82 and the connecting rod 83, the pawl 32 and the ratchet wheel 31 are limited, thereby improving the practicality of the device.
[0030] Reference Figure 2-4A limiting assembly 9 is arranged inside the ratchet 31, and the limiting assembly 9 includes a limiting groove 91, which is opened inside the ratchet 31, and the limiting groove 91 is fixedly connected to a limiting rod 92 inside, and a limiting slide ring 93 is arranged outside the limiting rod 92, and the outside of the limiting slide ring 93 is fixedly connected to an end of the connecting rod 83 away from the connecting plate 82; the limiting slide ring 93 plays a limiting role on the outside of the limiting rod 92, so that the limiting rod 92 rotates synchronously with the ratchet 31 inside the limiting slide ring 93, thereby improving the practicability of the device.
[0031] Reference Figure 2-4 The outside of the limiting slide ring 93 is fixedly connected with a sliding assembly 10, and the sliding assembly 10 includes a mounting block 101. Two mounting blocks 101 are fixedly connected to the outside of the limiting slide ring 93. Two arc grooves 103 are provided inside the limiting groove 91, and balls 102 are rotatably connected between the two arc grooves 103 and the mounting blocks 101; the balls 102 in the mounting blocks 101 synchronously rotate in situ in the arc grooves 103 to limit the rotation of the ratchet 31, thereby improving the practicability of the device.
[0032] Reference Figure 1-2 A movable component 4 is arranged inside the shell 2, and the movable component 4 includes a spring 41. The spring 41 is arranged inside the shell 2, and a sleeve 42 is arranged outside the spring 41, and the top of the sleeve 42 contacts the outside of the pawl 32; through the setting of the sleeve 42, the top of the sleeve 42 is arc-shaped, and the material is aluminum alloy, which is a light and durable material, suitable for occasions where weight reduction is required, thereby improving the practicality of the device.
[0033] Reference Figure 1-2 An auxiliary component 5 is fixedly connected to the inside of the shell 2, and the auxiliary component 5 includes a fixed block 51. Two fixed blocks 51 are fixedly connected to the inside of the shell 2. The outsides of the two fixed blocks 51 are fixedly connected to auxiliary rods 52, and the outsides of the two auxiliary rods 52 are in contact with the outside of the pawl 32. Through the setting of the auxiliary rod 52, the pawl 32 can be limited when it moves, thereby improving the practicability of the device.
[0034] Working principle: When the device is used, when the ratchet 31 rotates in the opposite direction, it will mesh with the pawl 32. Through the cooperation of the connecting component 8 and the limiting component 9, when the ratchet 31 rotates, the limiting slide ring 93 will play a limiting role outside the limiting rod 92, so that the limiting rod 92 rotates synchronously with the ratchet 31 on the inside of the limiting slide ring 93. At the same time, the ball 102 in the mounting block 101 also rotates synchronously in place in the arc groove 103 to limit the rotation of the ratchet 31. The connection between 82 and the connecting rod 83 limits the position between the pawl 32 and the ratchet 31 to prevent the ratchet 31 from loosening or shifting when rotating after long-term use, resulting in unstable engagement between the ratchet 31 and the pawl 32. Therefore, through the arrangement of the connecting component 8, the limiting component 9 and the sliding component 10, the engagement between the ratchet 31 and the pawl 32 is made more stable, which not only improves the use effect and practicality, but also enhances the stability of the ratchet wrench and extends the service life of the ratchet wrench.
[0035] The above are only preferred specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.
Claims
1. A ratchet wrench with stable engagement, comprising a handle (1), It is characterized in that The top end of the handle (1) is fixedly connected to a housing (2), the outside of the handle (1) is provided with a thread (11), the inside of the housing (2) is fixedly connected to a cylinder (6), the outside of the cylinder (6) is fixedly connected to a round block (7), the inside of the housing (2) is rotatably connected to a rotating assembly (3), the rotating assembly (3) comprises a ratchet (31), the ratchet (31) is rotatably connected to the inside of the housing (2), the outside of the round block (7) is rotatably connected to a pawl (32), and the pawl (32) and the ratchet (31) are meshingly connected.
2. A ratchet wrench with stable engagement according to claim 1, It is characterized in that The outside of the cylinder (6) is rotatably connected to a connecting assembly (8), the connecting assembly (8) comprising a connecting block (81), the connecting block (81) being rotatably connected to the outside of the cylinder (6) and located on one side of the round block (7), the outside of the connecting block (81) being fixedly connected to a connecting plate (82), and the outside of the connecting plate (82) being fixedly connected to a connecting rod (83).
3. A ratchet wrench with stable engagement according to claim 2, It is characterized in that A limit assembly (9) is arranged inside the ratchet (31), the limit assembly (9) comprising a limit groove (91), the limit groove (91) being arranged inside the ratchet (31), the limit rod (92) being fixedly connected inside the limit groove (91), a limit slide ring (93) being arranged outside the limit rod (92), and the outside of the limit slide ring (93) being fixedly connected to an end of the connecting rod (83) away from the connecting plate (82).
4. A ratchet wrench with stable engagement according to claim 3, It is characterized in that The outside of the limiting slide ring (93) is fixedly connected to a slide assembly (10), and the slide assembly (10) comprises a mounting block (101). The two mounting blocks (101) are fixedly connected to the outside of the limiting slide ring (93), and the inside of the limiting groove (91) is provided with two arc grooves (103), and a ball (102) is rotatably connected between the two arc grooves (103) and the mounting block (101).
5. A ratchet wrench with stable engagement according to claim 1, It is characterized in that A movable component (4) is arranged inside the housing (2), and the movable component (4) comprises a spring (41). The spring (41) is arranged inside the housing (2), and a sleeve (42) is arranged outside the spring (41), and the top end of the sleeve (42) is in contact with the outside of the pawl (32).
6. A ratchet wrench with stable engagement according to claim 1, It is characterized in that An auxiliary component (5) is fixedly connected to the interior of the housing (2), and the auxiliary component (5) comprises a fixing block (51), two fixing blocks (51) are fixedly connected to the interior of the housing (2), the exteriors of the two fixing blocks (51) are fixedly connected to auxiliary rods (52), and the exteriors of the two auxiliary rods (52) are in contact with the exterior of the pawl (32).