A torque adapter

Abstract

The utility model relates to a kind of torsion adapter, including base, input piece on base, output piece and the torque enhancement module in base, torque enhancement module includes rotationally installed pivot in base, limit gear is set on pivot, limiting block is rotationally installed in the side of limit gear of base, first locating groove is set on base, installation slot is set in limiting block, spring and steel ball are sequentially set in installation slot, steel ball is in the abutment with the groove bottom of first locating groove under the action of spring, limiting block edge is provided with first limiting part, limit gear includes the first limiting part of being provided with several positioning teeth in the interval along circumference, first limiting part includes first lamination plane and a blocking cam, the tooth surface of one positioning tooth is in abutment with first lamination plane, the top of adjacent positioning tooth is located above first blocking cam, using above-mentioned scheme, provide a kind of torsion adapter by limiting block to realize the limitation gear cannot reverse rotation.

Description

Technical Field

[0001] This utility model relates to the field of automotive repair technology, and in particular to a torque adapter. Background Technology

[0002] In the automotive manufacturing and repair industry, torque transmission devices are key tools for assembling and disassembling parts and transmitting power. Especially in engine assembly, chassis repair, tire installation and removal, operators often need to use tools such as torque wrenches and pneumatic wrenches to apply specific torque to fasteners such as bolts and nuts to ensure that the connection strength meets technical requirements.

[0003] During the process of applying torque to tighten bolts, the gear mechanism needs to rotate smoothly to transmit torque. However, when the force is stopped, the rebound stress of the bolt itself and the elastic deformation stress inside the mechanism will act in the opposite direction on the gear, causing the gear to reverse. This reversal causes the preset torque to deviate, and the actual preload of the bolt is lower than the set value. This directly affects the assembly reliability of key parts such as the car chassis, suspension system, and engine connecting parts, and poses a serious safety hazard. Existing torque amplification devices (such as planetary gear reduction mechanisms) and anti-reversal mechanisms are usually set up independently, with many parts and a large space occupation, which is not conducive to use in narrow working spaces such as engine compartments and under chassis.

[0004] Therefore, how to prevent the gear set from reversing internally within the tool itself has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a torque adapter that uses a limiting block to prevent the gear from rotating in the opposite direction, so as to solve the above problems.

[0006] Based on the above objectives, this utility model provides the following technical solution: It includes a base, an input component and an output component located on the base, and a torque enhancement module located within the base. The torque enhancement module includes a rotating shaft rotatably mounted on the base, a limiting gear on the rotating shaft, a limiting block rotatably mounted on one side of the limiting gear on the base, a first positioning groove on the base, an installation groove within the limiting block, a spring and a steel ball sequentially arranged within the installation groove, the steel ball abutting against the bottom of the first positioning groove under the action of the spring, a first limiting portion on the edge of the limiting block, and a plurality of positioning teeth spaced circumferentially on the limiting gear. The first limiting portion includes a first contact plane and a blocking arc surface, one of the positioning teeth abutting against the first contact plane, and the tooth tip of an adjacent positioning tooth located above the first blocking arc surface.

[0007] The present invention is further configured such that: the limiting block is provided with a second limiting part symmetrically distributed with the first limiting part at its edge; the base is provided with a second positioning groove symmetrically distributed with the first positioning groove; the base is provided with an arched part between the first positioning groove and the second positioning groove; and the second limiting part includes a second fitting plane and a second blocking arc surface.

[0008] The present invention is further configured such that: the torque enhancement module also includes a sun gear coaxially arranged with the limiting gear and a plurality of planetary gears arranged in a ring array along the center of the rotating shaft; a gear ring is provided in the base; and each of the planetary gears meshes with the sun gear and the gear ring.

[0009] The present invention is further configured such that: an input part and an output part are respectively installed on the front and rear sides of the base, the output part is located on the output part, the input part is located on the input part, the base is provided with grooves on both the front and rear sides of the gear ring, and a sealing ring is fitted on both the input part and the output part, with one end of each sealing ring located in the corresponding groove.

[0010] The present invention is further configured such that: the end of the rotating shaft is hexagonal prism-shaped, the input component is provided with a first loading groove for the rotating shaft to be loaded, and the input component is provided with a second loading groove in the shape of a quadrangular prism located in front of the first loading groove.

[0011] The present invention is further configured such that: a connector is inserted into the bottom of the base, a first spring pin is provided on the connector to achieve fastening with the base, a handle is inserted into the connector, and a second spring pin is provided on the handle to achieve fastening with the connector.

[0012] The present invention is further configured such that the connector is L-shaped.

[0013] The present invention is further configured such that: a mating seat is installed between the connector and the grip, and a support plate is provided on the mating seat.

[0014] The present invention is further configured such that the connector is in the shape of a straight rod.

[0015] The beneficial effects of this utility model are as follows: 1. Since the limiting block is rotatably installed inside the base, the anti-reverse component is integrated into the base without occupying additional space; 2. When the electric screwdriver drives the shaft, thereby enabling the torque enhancement module to work, the limiting gear rotates with the shaft. At this time, as the limiting gear rotates, its positioning teeth can abut against the first contact surface on the limiting block, so that the first limiting part is smoothly pushed and moved aside, and the limiting gear can smoothly rotate clockwise. If the shaft needs to rotate counterclockwise, the tooth tip of the positioning tooth contacts the first blocking arc surface, and cannot push the first limiting part, so that the first blocking arc surface plays a role in preventing reverse rotation; 3. After the tightening of the part stops, the rebound or shaking of the part will not cause the limiting gear to reverse, and the preset torque will not deviate; during disassembly, it prevents tool slippage and torque loss control, and improves operational safety; 4. The torque enhancement module allows for the disassembly and assembly of high-torque bolts by hand or ordinary electric screwdriver. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a specific embodiment of the present utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a cross-sectional view of the limiting block within the first positioning groove in this utility model; Figure 4 This is a cross-sectional view of the limiting block in the second positioning groove in this utility model; Figure 5 This is an exploded view of the base in this utility model; Figure 6 This is an exploded view of the base from another perspective in this utility model; Figure 7 This is a perspective view of the limiting block in this utility model; Figure 8 This is a perspective view of the L-shaped connector in this utility model; Figure 9 This is a perspective view of the joint extending vertically along its length in this utility model. Figure 10 This is a cross-sectional view of the base.

[0018] The diagram is marked as follows: 1. Base; 11. Limiting block; 111. Mounting slot; 112. First limiting part; 1121. First mating surface; 1122. First blocking arc surface; 12. First positioning slot; 13. Spring; 14. Steel ball; 15. Second limiting part; 151. Second mating surface; 152. Second blocking arc surface; 16. Second positioning slot; 17. Arched part; 18. Gear ring; 19. Groove; 10. Connector; 101. First spring pin; 102. Handle; 1021. Second spring pin; 2. Torque enhancement module; 21. Rotary shaft; 22. Limit gear; 221. Positioning gear; 23. Sun gear; 24. Planetary gear; 3. Input section; 31. Input component; 311. First loading slot; 312. Second loading slot; 4. Output section; 41. Output component; 5. Sealing ring; 6. Fitting seat; 61. Support plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1-10As shown, this utility model discloses a torque adapter, including a base 1, an input component 31 and an output component 41 located on the base 1, and a torque enhancement module 2 located within the base 1. The input component 31 is connected to an electric screwdriver or a manual torque-enhancing tool to enable the torque enhancement module 2 to operate, thereby achieving torque enhancement. The torque enhancement module 2 includes a rotating shaft 21 rotatably mounted on the base 1, a limiting gear 22 provided on the rotating shaft 21, and a limiting block 11 rotatably mounted on one side of the limiting gear 22 on the base 1. A first positioning groove 12 is provided on the base 1, and the limiting block 11 contains... An installation groove 111 is provided, in which a spring 13 and a steel ball 14 are sequentially arranged. The steel ball 14 abuts against the bottom of the first positioning groove 12 under the action of the spring 13. A first limiting part 112 is provided on the edge of the limiting block 11. The limiting gear 22 includes a plurality of positioning teeth 221 arranged at intervals along the circumference. The first limiting part 112 includes a first contact plane 1121 and a first blocking arc surface. The tooth surface of one of the positioning teeth 221 abuts against the first contact plane 1121, and the tooth tip of the adjacent positioning teeth 221 is located above the first blocking arc surface 1122. The limiting block 11 has a second limiting part 15 symmetrically distributed with the first limiting part 112 at its edge. The base 1 has a second positioning groove 16 symmetrically distributed with the first positioning groove 12 inside. The base 1 has an arched part 17 between the first positioning groove 12 and the second positioning groove 16. The second limiting part 15 includes a second fitting plane 151 and a second blocking arc surface 152. The torque enhancement module 2 also includes a sun gear 23 coaxially arranged with the limiting gear 22 and a number of planetary gears 24 arranged in a ring along the center of the rotating shaft 21. A gear ring 18 is provided in the base 1. Each of the planetary gears 24 meshes with the sun gear 23 and the gear ring 18. As a stationary support, the sun gear 23 rotates at high speed after receiving the input torque, which drives each planetary gear 24 to rotate. Since the gear ring 18 is fixed, the planetary gears 24 revolve around the sun gear 23 while rotating, thereby driving the planetary carrier to rotate at low speed, thus increasing the torque.

[0022] (1) When the output component 41 needs to be rotated clockwise, the electric screwdriver drives the rotating shaft 21 to rotate clockwise. The positioning teeth 221 of the limiting gear 22 can contact the first contacting plane 1121 during the clockwise rotation. Since the first contacting plane 1121 is located in the circumferential direction of the rotation center of the limiting block 11, when the positioning teeth 221 contact the first contacting plane 1121, the force generates torque along the circumferential direction, thereby driving the limiting block 11 to rotate along the rotation center. As the first limiting part 112 is pushed, the spring 13 is compressed, thereby enabling the limiting gear 22 to rotate clockwise smoothly. When the limiting gear 22 tends to rotate counterclockwise, the other positioning tooth 221 adjacent to the positioning tooth 221 abuts against the first blocking arc surface 1122. The first blocking arc surface 1122 is arranged radially relative to the rotation center of the limiting block 11. When the adjacent positioning tooth 221 contacts the first blocking arc surface 1122, the force is directed radially towards the rotation center rather than circumferentially. Therefore, no torque is generated about the rotation center, and the first blocking arc surface 1122 cannot be pushed to rotate. Furthermore, the elastic force of the spring 13 itself ensures that the first limiting part always abuts against the positioning tooth 221. Therefore, the limiting gear 22 cannot rotate counterclockwise. (2) When it is necessary to rotate the output component 41 counterclockwise, by rotating the front side of the limiting block 11, the limiting block 11 can be driven to pass over the arched part 17, so that the steel ball 14 can be inserted into the second positioning groove 16.

[0023] At this time, the limiting gear 22 rotates counterclockwise, and the tooth surface can push the second contacting plane 151, so that the limiting gear 22 rotates smoothly; when the limiting gear 22 has a tendency to rotate clockwise, the tooth tip of the adjacent positioning tooth 221 will contact the second blocking arc surface 152, and it cannot push the second blocking arc surface 152. Moreover, the elastic force of the spring 13 makes the second limiting part always abut against the positioning tooth 221. Therefore, the limiting gear 22 cannot rotate clockwise.

[0024] In summary, 1. Since the limiting block 11 is rotatably installed inside the base 1, the anti-reverse component is integrated into the base 1 without occupying additional space; 2. When the electric screwdriver drives the rotating shaft 21, thereby enabling the torque enhancement module 2 to work, the limiting gear 22 rotates along with the rotating shaft 21. At this time, as the limiting gear 22 rotates, its positioning teeth 221 can abut against the first contact surface 1121 on the limiting block 11, thereby allowing the first limiting part 112 to be smoothly pushed and displaced, and the limiting gear 22 can smoothly rotate clockwise. When the needle rotates, if the shaft 21 needs to rotate counterclockwise, the tooth tip of the positioning tooth 221 contacts the first blocking arc surface 1122, and cannot push the first limiting part 112, so that the first blocking arc surface 1122 plays the role of preventing reverse rotation; 3. After the tightening of the part stops, the rebound or shaking of the part will not cause the limiting gear 22 to reverse, and the preset torque will not deviate; during disassembly, it prevents the tool from slipping and the torque from getting out of control, and improves the safety of operation; 4. The torque enhancement module 2 allows for the disassembly and assembly of high torque bolts by hand or ordinary electric screwdriver.

[0025] In addition, an input section 3 and an output section 4 are respectively installed on the front and rear sides of the base 1. The output component 41 is located on the output section 4, and the input component 31 is located on the input section 3. The base 1 has grooves 19 on both the front and rear sides of the gear ring 18. A sealing ring 5 is fitted on both the input section 3 and the output section 4. One end of each sealing ring 5 is located in the corresponding groove 19. The presence of the grooves 19 on the front and rear sides can prevent the lubricating oil in the torque enhancement module 2 from leaking, and ensure the long-term stable operation of the torque enhancement module 2.

[0026] Preferably, the end of the rotating shaft 21 is hexagonal prism-shaped, and the input component 31 is provided with a first insertion groove 311 for the rotating shaft 21 to be inserted. The input component 31 is provided with a second insertion groove 312 in the shape of a square prism in front of the first insertion groove 311. The second insertion groove 312 in the shape of a square prism is compatible with existing sockets, wrenches, electric screwdrivers, etc., so that they can be inserted. The center hole of the sun gear 23 is usually hexagonal, so the externally inserted tool can transmit torque to the rotating shaft 21, thereby driving the rotation of the sun gear 23 and the planetary gear 24.

[0027] A connector 10 is inserted into the bottom of the base 1. A first spring pin 101 is provided on the connector 10 to secure it to the base 1. A handle 102 is inserted into the connector 10. A second spring pin 1021 is provided on the handle 102 to secure it to the connector 10. The connection between the connector 10 and the handle 102 effectively increases the lever arm, allowing force to be applied to the handle 102 to keep the base 1 stationary without the need for another hand to support and fix the base 1. At the same time, the handle 102 and the connector 10 are connected by a spring pin quick-release connection, which makes it easy to replace the handle 102 with different lengths according to the depth of the working space, or to disassemble and store it separately.

[0028] The connector 10 is L-shaped. Compared with the connector 10 that extends horizontally along its length, the L-shaped connector 10 allows the torque adapter 10 to better adapt to narrow operating spaces. The output part 41 extends into the working position, thereby better adapting to working environments with limited space, such as engine compartments and under chassis. Furthermore, by rotating the connector 10, the orientation angle of the connector 10 can be adjusted so that the handle 102 faces the working space at different angles, further adapting to diverse working posture requirements.

[0029] A mating seat 6 is installed between the connector 10 and the handle 102. A support plate 61 is provided on the mating seat 6. When the torque adapter 10 is used, the support plate 61 is pressed against the vehicle body / bottom surface to provide a fulcrum so that the base 1 is fixed and does not rotate, making the operation more stable and safe.

[0030] In addition, such as Figure 9As shown, the connector 10 is in the shape of a straight rod. After the handle 102 is inserted into the connector 10, the base 1, the connector 10, and the handle 102 can form a wrench to disassemble the parts before torque is input to the rotating shaft 21.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0032] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A torque adapter, comprising a base (1), an input component (31) and an output component (41) located on the base (1), and a torque enhancement module (2) located within the base (1), characterized in that: The torque enhancement module (2) includes a rotating shaft (21) rotatably mounted on a base (1). A limiting gear (22) is provided on the rotating shaft (21). A limiting block (11) is rotatably mounted on one side of the limiting gear (22) on the base (1). A first positioning groove (12) is provided on the base (1). An installation groove (111) is provided in the limiting block (11). A spring (13) and a steel ball (14) are sequentially arranged in the installation groove (111). The steel ball (14) is subjected to the action of the spring (13). The first limiting block (11) is provided with a first limiting part (112) at its edge, which abuts against the bottom of the first positioning groove (12). The limiting gear (22) includes a plurality of positioning teeth (221) spaced apart along the circumferential direction. The first limiting part (112) includes a first contact plane (1121) and a first blocking arc surface (1122). The tooth surface of one of the positioning teeth (221) abuts against the first contact plane (1121), and the tooth tip of the adjacent positioning tooth (221) is located above the first blocking arc surface (1122).

2. A torque adapter according to claim 1, characterized in that: The limiting block (11) has a second limiting part (15) symmetrically distributed with the first limiting part (112) at its edge. The base (1) has a second positioning groove (16) symmetrically distributed with the first positioning groove (12) inside. The base (1) has an arched part (17) between the first positioning groove (12) and the second positioning groove (16). The second limiting part (15) includes a second fitting plane (151) and a second blocking arc surface (152).

3. A torque adapter according to claim 1 or 2, characterized in that: The torque enhancement module (2) also includes a sun gear (23) coaxially arranged with the limiting gear (22) and a number of planetary gears (24) arranged in a ring along the center of the rotating shaft (21). A gear ring (18) is provided in the base (1), and each of the planetary gears (24) meshes with the sun gear (23) and the gear ring (18).

4. A torque adapter according to claim 3, characterized in that: The base (1) has an input section (3) and an output section (4) installed on its front and rear sides respectively. The output component (41) is located on the output section (4), and the input component (31) is located on the input section (3). The base (1) has grooves (19) on both the front and rear sides of the gear ring (18). The input section (3) and the output section (4) are fitted with sealing rings (5), and one end of each sealing ring (5) is located in the corresponding groove (19).

5. A torque adapter according to claim 4, characterized in that: The end of the rotating shaft (21) is hexagonal prism-shaped, and the input component (31) is provided with a first loading groove (311) for the rotating shaft (21) to be loaded. The input component (31) is provided with a second loading groove (312) in the shape of a quadrangular prism on the front side of the first loading groove (311).

6. A torque adapter according to claim 1, characterized in that: The bottom of the base (1) is connected to a connector (10), and a first spring pin (101) is provided on the connector (10) to achieve fastening with the base (1). A handle (102) is connected to the connector (10), and a second spring pin (1021) is provided on the handle (102) to achieve fastening with the connector (10).

7. A torque adapter according to claim 6, characterized in that: The connector (10) is L-shaped.

8. A torque adapter according to claim 6, characterized in that: A mating seat (6) is installed between the connector (10) and the handle (102), and a support plate (61) is provided on the mating seat (6).

9. A torque adapter according to claim 6, characterized in that: The connector (10) is in the shape of a straight rod.

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