Ratchet wrench with reversing device
By designing a structure with a reversing device in the ratchet wrench and using the flip mechanism of the handle and connecting rod, the problem of limited use of the ratchet wrench in a small space is solved, achieving a larger rotation angle and higher practicality.
Patent Information
- Application Number
- CN202421613508.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing ratchet wrench is limited in use in tight spaces and has limited rotation angle, resulting in limited use range and reducing practicality.
A ratchet wrench with a reversing device is designed. By setting the handle, connecting rod, rotating shaft and housing, the connecting rod is rotated as the center of the circle, and the handle is turned, so that the angle between the handle and the housing is 90 degrees, the torsion block is rotated, and the direction block is driven to rotate, thereby achieving a larger rotation angle in a narrow space.
It effectively solves the problem of limited use of ratchet wrench in narrow spaces, improves the scope of use and practicality, and avoids the situation of limited rotation angle.
Smart Images
Figure CN222791873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ratchet wrenches, in particular to a ratchet wrench with a reversing device. Background Art
[0002] A retaining spring, a pawl, a spring and a ratchet are cooperatively arranged in the accommodating space at the head of the wrench body of the ratchet wrench, wherein the ratchet is composed of a ratchet body and a spacer sleeve, and the spacer sleeve is a circular ring with a concave annular groove on the outer periphery, and the spacer sleeve is cooperatively sleeved on one side of the ratchet body. By decomposing the original integrated ratchet component into a combination of the ratchet body and the spacer sleeve, the processing difficulty caused by the concave annular groove on the original ratchet component being higher on one side and lower on the other side is avoided. In addition, since the ratchet body and the spacer sleeve components are relatively easy to process, the processing and production efficiency of the ratchet wrench is greatly improved and the production cost is reduced.
[0003] A ratchet wrench is used to rotate bolts or nuts placed in a narrow or difficult-to-access position. The ratchet wrench is rotatably connected to the end of an operating rod. A weight block connected to the operating rod is provided inside the ratchet wrench, and the weight block can slide along the length direction of the operating rod. The operating rod at the front of the weight block has a front weight block bearing part that blocks the weight block from colliding, or the operating rod at the rear of the weight block has a rear weight block bearing part that blocks the weight block from colliding. Moreover, the operating rod can also have both a front weight block bearing part and a rear weight block bearing part.
[0004] In the prior art, the wrench body head and the handle of the ratchet wrench are mostly fixedly connected. In a narrow working space, the rotation angle of the ratchet wrench will be restricted, which leads to a limited use range of the ratchet wrench and reduces the practicality of the ratchet wrench. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a ratchet wrench with a reversing device to solve the technical problems in the above-mentioned background technology.
[0006] To achieve the above object, the utility model provides the following technical solution: a ratchet wrench with a reversing device, comprising a housing, a handle and a connecting rod, wherein a connecting rod is movably mounted on one end of the housing, and one end of the connecting rod is fixedly connected to the handle;
[0007] A rotating shaft is symmetrically mounted on one end of the connecting rod, a mounting groove is provided on the upper end of the shell, and two sets of rotating shafts are movably connected to the inner wall of the mounting groove, a first gear is movably mounted inside the shell, a mounting block is mounted on one end of the first gear, and one end of the mounting block extends to the outer wall of the shell, a limiting shaft is symmetrically mounted on the inner wall of the shell, and a torsion spring is provided at one end of the two sets of limiting shafts, pawls are mounted on the outer walls of the two sets of limiting shafts, and the two sets of pawls are movably connected to the first gear, a mounting shaft is movably mounted inside the shell, a direction block is mounted on the bottom end of the mounting shaft, and the direction block is movably connected to the two sets of pawls;
[0008] A twist block is movably mounted on one end of the handle, and the twist block is movably connected to the direction block.
[0009] By adopting the above technical solution, the problem of using a ratchet wrench in a narrow space is solved. The operator rotates the connecting rod with the rotating shaft as the center, thereby driving the handle to flip, so that the angle between the handle and the shell is ninety degrees, and the torsion block is rotated to drive the direction block to rotate. The operator operates the ratchet wrench through the handle to avoid the situation where the rotation angle of the ratchet wrench is limited in a narrow working space, thereby increasing the use range of the ratchet wrench and further improving the practicability of the ratchet wrench.
[0010] The utility model is further configured that movable shafts are symmetrically installed inside the handle, and one group of movable shafts extends to the outer wall of the handle and is connected to the torsion block, and the outer walls of the two groups of movable shafts are both installed with third gears, and the two groups of third gears are meshed and connected.
[0011] By adopting the above technical solution, the torsion block rotates, driving a group of movable shafts to rotate, thereby driving a group of third gears to rotate, and the two groups of third gears are meshed and connected, so the other group of third gears rotates, thereby driving another group of movable shafts to rotate, and the two groups of movable shafts rotate in opposite directions.
[0012] The utility model is further configured such that the outer walls of the two groups of movable shafts are sleeved with movable columns, and the outer walls of the two groups of movable shafts are respectively threadedly connected to the inner walls of the two groups of movable columns, one end of the connecting rod is provided with two groups of reserved grooves, and one end of the two groups of movable columns respectively extends into the two groups of reserved grooves.
[0013] By adopting the above technical solution, the two groups of movable shafts rotate in opposite directions, and the inner walls of the two groups of movable columns are respectively threadedly connected to the outer walls of the two groups of movable shafts, so the two groups of movable columns are displaced, and the two groups of movable columns move in opposite directions, and one group of movable columns moves from one end of the reserved groove to the inside of the shell.
[0014] The utility model is further configured such that a second gear is installed on the outer wall of the mounting shaft, tooth plates are symmetrically installed inside the shell, and two groups of tooth plates are meshed and connected with the second gear, the two groups of movable columns are respectively movably connected with one end of the two groups of second tooth plates, and the two groups of second tooth plates are respectively movably connected with the two groups of reserved grooves.
[0015] By adopting the above technical solution, a group of moving columns pushes a group of tooth plates to move, and both groups of tooth plates are meshed and connected with the second gear, so the second gear rotates, and the other group of tooth plates moves toward the reserved groove and enters the reserved groove.
[0016] The utility model is further configured that a mounting plate is installed inside the shell, two groups of springs are installed on the outer wall of the mounting plate, and one end of the two groups of springs are respectively connected to the two groups of tooth plates.
[0017] By adopting the above technical solution, when one set of tooth plates moves, pressure is exerted on one set of springs, and another set of tooth plates exerts tension on another set of springs. When the two sets of moving columns are reset, the two sets of springs respectively drive the two sets of tooth plates to reset.
[0018] The utility model is further configured such that a slide groove is provided at one end of the direction block, two groups of movable rods are symmetrically and movably installed inside the slide groove, limiting blocks are installed at one end of the two groups of movable rods, and the two groups of limiting blocks are movably connected to the two groups of movable columns respectively.
[0019] By adopting the above technical solution, a group of moving columns squeeze one end of a group of limit blocks, so that the limit blocks are displaced, thereby driving a group of movable rods to move, and then pushing one end of the direction block to displace, and then driving the direction block to rotate.
[0020] The utility model is further configured such that one end of the two groups of limit blocks are both chamfered, and one end of the two groups of movable columns are both chamfered, and the outer wall of the connecting rod is symmetrically provided with grooves movably connected to the two groups of tooth plates.
[0021] By adopting the above technical solution, a group of moving columns squeeze one end of a group of limit blocks, and the end of the limit blocks is chamfered to make the limit blocks move. At the same time, a group of tooth plates moves into the grooves opened by the connecting rods.
[0022] In summary, the utility model mainly has the following beneficial effects:
[0023] The utility model solves the problem of using a ratchet wrench in a narrow space by providing a handle, a connecting rod, a rotating shaft and a shell. The operator rotates the connecting rod with the rotating shaft as the center of the circle, thereby driving the handle to flip, so that the angle between the handle and the shell is ninety degrees, and the torsion block is rotated to drive the direction block to rotate. The operator operates the ratchet wrench through the handle to perform operations, avoiding the situation that the rotation angle of the ratchet wrench is limited in a narrow working space, thereby increasing the use range of the ratchet wrench and further improving the practicability of the ratchet wrench. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of a housing of a ratchet wrench with a reversing device according to the utility model;
[0025] Figure 2 It is a schematic diagram of the handle flipping of a ratchet wrench with a reversing device according to the utility model;
[0026] Figure 3 This is a schematic diagram of the internal structure of a housing of a ratchet wrench with a reversing device according to the utility model;
[0027] Figure 4 It is a schematic diagram of a direction block of a ratchet wrench with a reversing device according to the utility model;
[0028] Figure 5 It is a schematic diagram of a connecting rod of a ratchet wrench with a reversing device according to the utility model;
[0029] Figure 6 The utility model is a schematic diagram of the internal structure of a handle of a ratchet wrench with a reversing device.
[0030] In the figure: 1. housing; 2. first gear; 3. mounting block; 4. limiting shaft; 5. ratchet; 6. mounting shaft; 7. second gear; 8. direction block; 9. slide groove; 10. movable rod; 11. limiting block; 12. mounting plate; 13. spring; 14. tooth plate; 15. handle; 16. connecting rod; 17. rotating shaft; 18. reserved groove; 19. movable shaft; 20. third gear; 21. moving column; 22. torsion block. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0032] The following describes an embodiment of the utility model based on its overall structure.
[0033] A ratchet wrench with a reversing device, such as Figure 1 - Figure 6 As shown, it includes a housing 1, a handle 15 and a connecting rod 16. The connecting rod 16 is movably mounted on one end of the housing 1, and one end of the connecting rod 16 is fixedly connected to the handle 15;
[0034] A rotating shaft 17 is symmetrically mounted on one end of the connecting rod 16, and a mounting groove is provided on the upper end of the housing 1, and two groups of rotating shafts 17 are movably connected to the inner wall of the mounting groove. The operator rotates the connecting rod 16 with the rotating shaft 17 as the center of the circle, thereby driving the handle 15 to flip, so that the angle between the handle 15 and the housing 1 is 90 degrees, and a first gear 2 is movably mounted inside the housing 1, and a mounting block 3 is mounted on one end of the first gear 2, and one end of the mounting block 3 extends to the outer wall of the housing 1, and a limiting shaft 4 is symmetrically mounted on the inner wall of the housing 1, and torsion springs are provided at one end of the two groups of limiting shafts 4, and ratchet 5 is mounted on the outer wall of the two groups of limiting shafts 4, and the two groups of ratchet 5 are movably connected to the first gear 2, and a mounting shaft 6 is movably mounted inside the housing 1, and a direction block 8 is mounted on the bottom end of the mounting shaft 6, and the direction block 8 is movably connected to the two groups of ratchet pawls 5, and the direction block 8 rotates, and the direction block 8 squeezes one group of ratchet pawls 5, so that the other group of ratchet pawls 5 limit the first gear 2 in one direction, and the operator operates the ratchet wrench through the handle 15 to operate;
[0035] A twist block 22 is movably mounted on one end of the handle 15 , and the twist block 22 is movably connected to the direction block 8 . When an operator rotates the twist block 22 , the direction block 8 is driven to rotate.
[0036] See also Figure 2 - Figure 6 The handle 15 is symmetrically installed with movable shafts 19, and one group of movable shafts 19 extends to the outer wall of the handle 15 and is connected to the torsion block 22. The outer walls of the two groups of movable shafts 19 are installed with third gears 20, and the two groups of third gears 20 are meshed and connected. The torsion block 22 rotates, driving one group of movable shafts 19 to rotate, thereby driving one group of third gears 20 to rotate, and the two groups of third gears 20 are meshed and connected, so the other group of third gears 20 rotates, thereby driving the other group of movable shafts 19 to rotate, and the two groups of movable shafts 19 rotate in opposite directions.
[0037] See also Figure 2 - Figure 6 The outer walls of the two groups of movable shafts 19 are sleeved with movable columns 21, and the outer walls of the two groups of movable shafts 19 are respectively threadedly connected with the inner walls of the two groups of movable columns 21. One end of the connecting rod 16 is provided with two groups of reserved grooves 18, and one end of the two groups of movable columns 21 extends into the two groups of reserved grooves 18 respectively. The two groups of movable shafts 19 rotate in opposite directions, and the inner walls of the two groups of movable columns 21 are respectively threadedly connected with the outer walls of the two groups of movable shafts 19. Therefore, the two groups of movable columns 21 are displaced, and the movement directions of the two groups of movable columns 21 are opposite. One group of movable columns 21 moves from one end of the reserved groove 18 to the inside of the shell 1.
[0038] See also Figure 2 - Figure 6 A second gear 7 is installed on the outer wall of the mounting shaft 6, and tooth plates 14 are symmetrically installed inside the housing 1, and two groups of tooth plates 14 are meshed and connected with the second gear 7, two groups of moving columns 21 are movably connected with one end of the two groups of second tooth plates 7, and the two groups of second tooth plates 7 are movably connected with the two groups of reserved grooves 18, respectively. One group of moving columns 21 pushes one group of tooth plates 14 to displace, and the two groups of tooth plates 14 are meshed and connected with the second gear 7, so the second gear 7 rotates, and the other group of tooth plates 14 moves toward the reserved groove 18 and enters the reserved groove 18.
[0039] See also Figure 1 - Figure 3 A mounting plate 12 is installed inside the housing 1, and two groups of springs 13 are installed on the outer wall of the mounting plate 12, and one end of the two groups of springs 13 is respectively connected to the two groups of tooth plates 14. When one group of tooth plates 14 moves, pressure is generated on one group of springs 13, and the other group of tooth plates 14 generates tension on the other group of springs 13. When the two groups of moving columns 21 are reset, the two groups of springs 13 respectively drive the two groups of tooth plates 14 to reset.
[0040] See also Figure 3 - Figure 4 A slide groove 9 is provided at one end of the direction block 8, and two groups of movable rods 10 are symmetrically and movably installed inside the slide groove 9. Limit blocks 11 are installed at one end of the two groups of movable rods 10, and the two groups of limit blocks 11 are movably connected with two groups of movable columns 21 respectively. A group of movable columns 21 squeezes one end of a group of limit blocks 11, so that the limit blocks 11 are displaced, thereby driving a group of movable rods 10 to move, and then pushing one end of the direction block 8 to displace, and then driving the direction block 8 to rotate.
[0041] See also Figure 2 - Figure 6 One end of the two groups of limit blocks 11 is chamfered, and one end of the two groups of movable columns 21 is chamfered. The outer wall of the connecting rod 16 is symmetrically provided with grooves that are movably connected to the two groups of tooth plates 14. A group of movable columns 21 squeezes one end of a group of limit blocks 11, and the end of the limit block 11 is chamfered, so that the limit block 11 is displaced. At the same time, a group of tooth plates 14 moves into the groove opened by the connecting rod 16.
[0042] The working principle of the utility model is as follows: when an operator uses the ratchet wrench, the operator first installs the corresponding sleeve on the outer wall of the mounting block 3, and then rotates or turns the torsion block 22 forward or reversely according to the rotation direction required for the use of the ratchet wrench;
[0043] When the torsion block 22 rotates, it drives a set of movable shafts 19 to rotate, thereby driving a set of third gears 20 to rotate, and the two sets of third gears 20 are meshed and connected, so the other set of third gears 20 rotates, thereby driving another set of movable shafts 19 to rotate, and the two sets of movable shafts 19 rotate in opposite directions, and the inner walls of the two sets of movable columns 21 are respectively threadedly connected to the outer walls of the two sets of movable shafts 19, so the two sets of movable columns 21 are displaced, and the two sets of movable columns 21 move in opposite directions;
[0044] When the two groups of moving columns 21 move, one group of moving columns 21 moves from one end of the reserved groove 18 to the inside of the housing 1, and pushes one group of toothed plates 14 to move, and both groups of toothed plates 14 are meshed and connected with the second gear 7, so the second gear 7 rotates, and the other group of toothed plates 14 moves toward the reserved groove 18 and enters the reserved groove 18, thereby improving the stability of the connection between the connecting rod 16 and the housing 1;
[0045] When the second gear 7 rotates, the mounting shaft 6 is driven to rotate, thereby driving the direction block 8 to rotate, and the direction block 8 squeezes a set of ratchet pawls 5, so that the other set of ratchet pawls 5 unidirectionally limit the first gear 2, and the operator operates the ratchet wrench through the handle 15 to operate;
[0046] If the working space is relatively small, the operator rotates the connecting rod 16 with the rotating shaft 17 as the center, thereby driving the handle 15 to flip, rotating the torsion block 22, a group of movable columns 21 enter the shell 1, and squeeze one end of a group of limit blocks 11, so that the limit blocks 11 are displaced, thereby driving a group of movable rods 10 to move, and then pushing one end of the direction block 8 to displace, and then driving the direction block 8 to rotate, and a group of toothed plates 14 move into the groove opened in the connecting rod 16, to improve the stability of the connecting rod 16 after flipping, and the operator operates the ratchet wrench through the handle 15 to perform the operation.
[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A ratchet wrench with a reversing device, comprising a housing (1), a handle (15) and a connecting rod (16), characterized in that: A connecting rod (16) is movably mounted on one end of the housing (1), and one end of the connecting rod (16) is fixedly connected to the handle (15); A rotating shaft (17) is symmetrically mounted on one end of the connecting rod (16); a mounting groove is provided on the upper end of the housing (1), and two groups of rotating shafts (17) are movably connected to the inner wall of the mounting groove; a first gear (2) is movably mounted inside the housing (1); a mounting block (3) is mounted on one end of the first gear (2), and one end of the mounting block (3) extends to the outer wall of the housing (1); a limiting shaft (4) is symmetrically mounted on the inner wall of the housing (1), and torsion springs are provided at one end of the two groups of limiting shafts (4); ratchet pawls (5) are mounted on the outer walls of the two groups of limiting shafts (4), and the two groups of ratchet pawls (5) are movably connected to the first gear (2); a mounting shaft (6) is movably mounted inside the housing (1), and a direction block (8) is mounted on the bottom end of the mounting shaft (6), and the direction block (8) is movably connected to the two groups of ratchet pawls (5); A twist block (22) is movably mounted on one end of the handle (15), and the twist block (22) is movably connected to the direction block (8).
2. A ratchet wrench with a reversing device according to claim 1, characterized in that: The handle (15) is symmetrically provided with movable shafts (19), and one group of movable shafts (19) extends to the outer wall of the handle (15) and is connected to the torsion block (22). The outer walls of the two groups of movable shafts (19) are both provided with third gears (20), and the two groups of third gears (20) are meshed and connected.
3. A ratchet wrench with a reversing device according to claim 2, characterized in that: The outer walls of the two groups of movable shafts (19) are sleeved with movable columns (21), and the outer walls of the two groups of movable shafts (19) are respectively threadedly connected to the inner walls of the two groups of movable columns (21); one end of the connecting rod (16) is provided with two groups of reserved grooves (18), and one end of the two groups of movable columns (21) respectively extends into the two groups of reserved grooves (18).
4. A ratchet wrench with a reversing device according to claim 3, characterized in that: A second gear (7) is installed on the outer wall of the installation shaft (6), and tooth plates (14) are symmetrically installed inside the housing (1), and the two groups of tooth plates (14) are meshed and connected with the second gear (7), the two groups of movable columns (21) are respectively movably connected to one end of the two groups of tooth plates (14), and the two groups of tooth plates (14) are respectively movably connected to the two groups of reserved grooves (18).
5. A ratchet wrench with a reversing device according to claim 4, characterized in that: A mounting plate (12) is installed inside the housing (1), and two groups of springs (13) are installed on the outer wall of the mounting plate (12), and one end of the two groups of springs (13) is respectively connected to the two groups of tooth plates (14).
6. A ratchet wrench with a reversing device according to claim 4, characterized in that: A slide groove (9) is provided at one end of the direction block (8), and two groups of movable rods (10) are symmetrically and movably installed inside the slide groove (9). Limit blocks (11) are installed at one end of the two groups of movable rods (10), and the two groups of limit blocks (11) are movably connected to the two groups of movable columns (21) respectively.
7. A ratchet wrench with a reversing device according to claim 6, characterized in that: One end of the two groups of limit blocks (11) is rounded, and one end of the two groups of movable columns (21) is rounded. The outer wall of the connecting rod (16) is symmetrically provided with grooves that are movably connected to the two groups of tooth plates (14).