Torque wrench connector and sleeve adapter connecting and matching structure and sleeve adapter
By setting a positioning plane in the connection hole of the sleeve adapter, ensuring the fit and coordination between the torque wrench connector and the sleeve adapter, the problem of the torque wrench prone to skew when applying torque in the prior art is solved, and higher torque accuracy is achieved.
Patent Information
- Application Number
- CN202510574957.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2025-06-13
AI Technical Summary
There is a large gap between the connection between the existing wrench connector and the sleeve adapter, which causes the torque wrench to easily skew when applying torque, causing false torque phenomena and affecting the accuracy of the torque.
A connection fitting structure between the torque wrench connector and the sleeve adapter is designed. By setting a clockwise and counterclockwise positioning plane in the connection hole of the sleeve adapter, it ensures that the connection head fits and cooperates with the corresponding positioning plane when it rotates, thereby avoiding skew.
Through this design, the skew of the torque wrench connector relative to the axis direction of the connection hole can be effectively avoided, the false torque phenomenon can be reduced, and the accuracy of the actual torque applied by the torque wrench can be improved.
Smart Images
Figure CN120134256A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wrench adapters, and specifically to a connection and cooperation structure between a torque wrench connector and a socket adapter, and a socket adapter. Background Art
[0002] A socket adapter is a common mechanical connector, mainly used for adapting and transferring or expanding functions between a wrench and a bolt. Since the connector of the wrench adopts a square structure, usually a square structure, in order to be adaptively connected to the connector of the wrench, the connection hole at one end of the existing socket adapter is usually set to be square or waist-shaped. In order to ensure that the connector of the wrench can be inserted into the connection hole of the socket adapter, a relatively large gap needs to be set between the connection hole and the connector of the wrench to form a clearance fit, and usually the fit clearance is greater than or equal to 0.1 mm. This results in that when the connector of the wrench is connected and cooperated with the connection hole of the socket, the connector can rotate and swing relative to the connection hole, resulting in line contact between the connector and the hole wall of the connection hole, which easily causes the torque wrench to be skewed, and easily causes problems such as the torque displayed by the torque wrench not matching the actual applied torque and the torque not being applied in place, that is, a false torque phenomenon is formed. This situation has a high quality risk for some occasions with strict torque requirements. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a connection and cooperation structure between a torque wrench connector and a socket adapter, and a socket adapter that cooperate better with the connector of the wrench, so as to reduce or avoid the skewing of the torque wrench when applying torque, and improve the accuracy of the actual applied torque of the torque wrench.
[0004] The solution of the present invention is: A connection and cooperation structure between a torque wrench connector and a socket adapter, one end of the socket adapter is provided with a connection hole for inserting the square connector of the torque wrench, the connection hole is rotationally matched with the connector, along the clockwise rotation direction of the connection hole, a protruding first positioning plane for fitting and cooperating with one side surface of the connector and a third positioning plane for fitting and cooperating with the other side surface of the connector are provided in the connection hole; along the counterclockwise rotation direction of the connection hole, a protruding second positioning plane for fitting and cooperating with one side surface of the connector and a fourth positioning plane for fitting and cooperating with the other side surface of the connector are also provided in the connection hole;
[0005] The third positioning plane is parallel to the first positioning plane, and the fourth positioning plane is parallel to the second positioning plane;
[0006] The connector is inserted into the connection hole. When the torque wrench applies torque in the clockwise direction, the connector rotates clockwise so that one side surface thereof fits and cooperates with the first positioning plane, and the other side surface fits and cooperates with the third positioning plane. When the torque wrench applies torque in the counterclockwise direction, the connector rotates counterclockwise so that one side surface thereof fits and cooperates with the second positioning plane, and the other side surface fits and cooperates with the fourth positioning plane.
[0007] Further, the connection hole is a round hole, and the diameter of the connection hole is greater than or equal to the outer diameter of the circumcircle of the connector.
[0008] Further, first and second bosses are symmetrically arranged on both sides of the connection hole. The distance between the top of the first boss and the top of the second boss is greater than the width of the connector. The two side surfaces of the first boss and the second boss are inclined to form a structure with a smaller width at the top and a larger width at the bottom. One side surface of the first boss forms the first positioning plane, and the other side surface forms the second positioning plane. One side surface of the second boss forms the third positioning plane, and the other side surface forms the fourth positioning plane.
[0009] Further, the connector is square.
[0010] A socket adapter, one end of the socket adapter is provided with a connection hole for rotatably cooperating with a square connector of a torque wrench. Along the clockwise rotation direction of the connection hole, a protruding first positioning plane and a third positioning plane are provided in the connection hole. Along the counterclockwise rotation direction of the connection hole, a protruding second positioning plane and a fourth positioning plane are also provided in the connection hole.
[0011] The third positioning plane is parallel to the first positioning plane, and the fourth positioning plane is parallel to the second positioning plane.
[0012] Further, the connection hole is a round hole.
[0013] Further, first and second bosses are symmetrically arranged on both sides of the connection hole. The distance between the top of the first boss and the top of the second boss is greater than the width of the connector. The two side surfaces of the first boss and the second boss are inclined to form a structure with a smaller width at the top and a larger width at the bottom. One side surface of the first boss forms the first positioning plane, and the other side surface forms the second positioning plane. One side surface of the second boss forms the third positioning plane, and the other side surface forms the fourth positioning plane.
[0014] Further, the other end of the socket adapter is provided with a square hole or an internal hexagonal hole.
[0015] The beneficial effects of the present invention are as follows: A torque wrench connector and socket adapter connection and cooperation structure and socket adapter of the present invention can ensure that the side surface of the connector is completely fitted with the corresponding positioning surface (ignoring machining errors) to form a surface contact positioning fit. The fit between the connector and the connection hole is better, which can avoid the situation where the connector is skewed (tilted) relative to the axis direction of the connection hole, and can reduce the false torque phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the connection hole structure of the existing socket adapter;
[0017] Figure 2 is a schematic diagram of the socket adapter of the present invention;
[0018] Figure 3 is Figure 2 top view of
[0019] Figure 4 is Figure 2 bottom view of
[0020] Figure 5 is a schematic diagram of the use of the socket adapter of the present invention;
[0021] As shown in the figure: socket adapter 1, torque wrench 2, axis 3, connection hole 11, first positioning plane 12, second positioning plane 13, third positioning plane 14, fourth positioning plane 15, first boss 16, second boss 17, square hole 18, connector 21. DETAILED DESCRIPTION OF THE INVENTION
[0022] The present invention will be further described below in conjunction with the drawings and embodiments.
[0023] The connection hole 11 of the existing socket adapter is a square hole or a kidney-shaped hole with a width adapted to the wrench connector. Figure 1 The connection hole 11 in Figure 1 is a kidney-shaped hole. As shown in
[0024] To facilitate the insertion and removal of the wrench connector, the width of the connection hole needs to be greater than the width of the connector to form a clearance fit. Usually, the clearance fit needs to be greater than or equal to 0.1 mm. This causes the torque wrench connector 21 to rotate to a certain extent when the torque wrench applies torque through the socket adapter, resulting in a line contact with the hole wall of the connection hole 11, which easily leads to the skewing of the torque wrench, resulting in the inconsistency between the torque displayed on the torque wrench and the torque actually applied to the bolt by the torque wrench through the socket adapter, that is, the problem of the torque not being applied in place, namely, the formation of a false torque phenomenon, affecting the product quality. Figures 2 to 5As shown in the figure, a connection and cooperation structure between a torque wrench connector and a socket adapter of the present invention is provided. One end of the socket adapter 1 is provided with a connection hole 11 for inserting a square connector 21 of the torque wrench 2. The connector 21 is usually of a square structure. The connection hole 11 is rotationally matched with the connector 21, so that the connector can rotate within the connection hole 11. When the connection hole 11 is rotationally matched with the connector 21, along the clockwise rotation direction of the connection hole 11, a protruding first positioning plane 12 for fitting and cooperating with one side surface of the connector 21 and a third positioning plane 14 for fitting and cooperating with the other side surface of the connector 21 are provided within the connection hole 11; along the counterclockwise rotation direction of the connection hole 11, a protruding second positioning plane 13 for fitting and cooperating with one side surface of the connector 21 and a fourth positioning plane 15 for fitting and cooperating with the other side surface of the connector 21 are also provided within the connection hole 11; the third positioning plane 14 is parallel to the first positioning plane 12, and the fourth positioning plane 15 is parallel to the second positioning plane 13. As Figure 5 shown, the connector 21 is inserted into the connection hole 11. When the torque wrench applies a torque in the clockwise direction, the connector 21 rotates clockwise within the connection hole so that one side surface thereof fits and cooperates with the first positioning plane 12, and the other side surface fits and cooperates with the third positioning plane 14; when the torque wrench applies a torque in the counterclockwise direction, the connector 21 rotates counterclockwise within the connection hole so that one side surface thereof fits and cooperates with the second positioning plane 13, and the other side surface fits and cooperates with the fourth positioning plane 15.
[0025] The connecting and mating structure between the torque wrench connector and the socket adapter of the present invention sets the connecting hole 11 at one end of the socket adapter as a connecting hole that rotatably mates with the connector. Along the clockwise rotation direction of the connecting hole 11, that is, on the clockwise rotation path of the connector, a first positioning plane 12 and a third positioning plane 14 are provided. Along the counterclockwise rotation direction of the connecting hole 11, that is, on the counterclockwise rotation path of the connector, a second positioning plane 13 and a fourth positioning plane 15 are provided. When the connector 21 is connected to the connecting hole 11, by rotating the connector, one side surface of the connector is brought into fitting cooperation with the first positioning plane 12, and the other side surface is brought into fitting cooperation with the third positioning plane 14, or one side surface of the connector is brought into fitting cooperation with the second positioning plane 13, and the other side surface is brought into fitting cooperation with the fourth positioning plane 15, thereby realizing the positioning of the connector. In this way, there is no need to provide extra space between the third positioning plane 14 and the first positioning plane 12, and between the fourth positioning plane 15 and the second positioning plane 13. That is, the distance between the third positioning plane 14 and the first positioning plane 12 and the distance between the fourth positioning plane 15 and the second positioning plane 13 are designed entirely according to the width of the connector 21, which can ensure that the side surface of the connector 21 is completely in surface contact with the corresponding positioning surface (ignoring machining errors), thus avoiding the situation where the connector is skewed (tilted) relative to the axis direction of the connecting hole, making the torque displayed by the torque wrench more consistent with the actual torque applied to the bolt, and reducing the false torque phenomenon.
[0026] The connecting hole 11 can be a square hole, a circular hole, etc. In the present invention, the connecting hole 11 is a circular hole, and the diameter of the connecting hole 11 is greater than or equal to the circumscribed circle diameter of the connector 21. Preferably, the diameter of the connecting hole 11 is greater than the circumscribed circle diameter of the connector 21. Generally, the diameter of the connecting hole is 0.1 mm larger than the circumscribed circle diameter of the connector 21.
[0027] Such as Figure 3 and Figure 4As shown, in an embodiment of the present invention, on both sides of the connection hole 11, there are a first boss 16 and a second boss 17 arranged axially symmetrically. The first boss 16 and the second boss 17 are symmetrically arranged with respect to an axis 3 perpendicular to the line connecting the two. The distance between the top of the first boss 16 and the top of the second boss 17 is greater than the width of the connection head 21, so that the connection head 21 can be inserted into the connection hole between the top of the first boss 16 and the top of the second boss 17. The two side surfaces of the first boss 16 and the second boss 17 are inclined to form a structure with a smaller width at the top and a larger width at the bottom. This structure can be a V-shaped structure or a trapezoid-like structure, etc. In the figure, it is a V-shaped structure, so that the connection head can rotate clockwise or counterclockwise to cooperate with the corresponding positioning surface. One side surface of the first boss 16 forms a first positioning plane 12, and the other side surface forms a second positioning plane 13. One side surface of the second boss 17 forms a third positioning plane 14, and the other side surface forms a fourth positioning plane 15.
[0028] In some embodiments, the first positioning plane 12 and the second positioning plane 13 are formed by the side surfaces of different bosses, and the third positioning plane 14 and the fourth positioning plane 15 are also formed by the side surfaces of different bosses. In some embodiments, the first boss 16 and the second boss 17 can also adopt a non-axially symmetric arrangement structure.
[0029] As Figures 2 to 4 shown, the present invention also provides a sleeve adapter for the above connection and cooperation structure. One end of the sleeve adapter is provided with a connection hole 11 for rotatably cooperating with the square connection head 21 of a torque wrench. Along the clockwise rotation direction of the connection hole 11, in the connection hole 11, there is a protruding first positioning plane 12 for fittingly cooperating with one side surface of the connection head 21 and a third positioning plane 14 for fittingly cooperating with the other side surface of the connection head 21; along the counterclockwise rotation direction of the connection hole 11, in the connection hole 11, there is also a protruding second positioning plane 13 for fittingly cooperating with one side surface of the connection head 21 and a fourth positioning plane 15 for fittingly cooperating with the other side surface of the connection head 21; the third positioning plane 14 is parallel to the first positioning plane 12, and the fourth positioning plane 15 is parallel to the second positioning plane 13.
[0030] Specifically, on both sides of the connecting hole 11, there are a first boss 16 and a second boss 17 arranged axially symmetrically. The distance between the top of the first boss 16 and the top of the second boss 17 is greater than the width of the connecting head 21, so that the connecting head 21 can be inserted into the connecting hole from between the top of the first boss 16 and the top of the second boss 17. The two side surfaces of the first boss 16 and the second boss 17 are inclined to form a trapezoidal structure or a V-shaped structure with a smaller width at the top and a larger width at the bottom. In the figure, it is a V-shaped structure, so that the connecting head can rotate clockwise or counterclockwise to cooperate with the corresponding positioning surface. One side surface of the first boss 16 forms a first positioning plane 12, and the other side surface forms a second positioning plane 13. One side surface of the second boss 17 forms a third positioning plane 14, and the other side surface forms a fourth positioning plane 15.
[0031] In an embodiment of the present invention, the other end of the sleeve adapter is provided with a square hole 18 or a regular hexagon hole, so as to facilitate the connection and cooperation between the other end of the sleeve adapter and a regular hexagon bolt head or nut of a corresponding specification.
Claims
1. A coupling structure for a torque wrench connector and a sleeve adapter, wherein one end of the sleeve adapter is provided with a connecting hole (11) for inserting a square connector (21) of the torque wrench, characterized in that: The connecting hole (11) is rotatably matched with the connecting head (21). Along the clockwise rotation direction of the connecting hole (11), a protruding first positioning plane (12) for fitting with one side surface of the connecting head (21) and a third positioning plane (14) for fitting with the other side surface of the connecting head (21) are provided in the connecting hole (11); along the counterclockwise rotation direction of the connecting hole (11), a protruding second positioning plane (13) for fitting with one side surface of the connecting head (21) and a fourth positioning plane (15) for fitting with the other side surface of the connecting head (21) are also provided in the connecting hole (11); The third positioning plane (14) is parallel to the first positioning plane (12), and the fourth positioning plane (15) is parallel to the second positioning plane (13); The connecting head (21) is inserted into the connecting hole (11); when the torque wrench applies torque in the clockwise direction, the connecting head (21) rotates clockwise so that one side surface thereof fits in with the first positioning plane (12), and the other side surface thereof fits in with the third positioning plane (14); when the torque wrench applies torque in the counterclockwise direction, the connecting head (21) rotates counterclockwise so that one side surface thereof fits in with the second positioning plane (13), and the other side surface thereof fits in with the fourth positioning plane (15).
2. The torque wrench connector and sleeve adapter connection matching structure according to claim 1, characterized in that: The connection hole (11) is a circular hole, and the diameter of the connection hole (11) is greater than or equal to the diameter of the circumscribed circle of the connection head (21).
3. The torque wrench connector and sleeve adapter connection matching structure according to claim 1 or 2, characterized in that: A first boss (16) and a second boss (17) are axially symmetrically arranged on both sides of the connection hole (11); the distance between the top of the first boss (16) and the top of the second boss (17) is greater than the width of the connection head (21); the two side surfaces of the first boss (16) and the second boss (17) are inclined to form a structure with a small top width and a large bottom width; one side surface of the first boss (16) forms a first positioning plane (12), and the other side surface forms a second positioning plane (13); one side surface of the second boss (17) forms a third positioning plane (14), and the other side surface forms a fourth positioning plane (15).
4. The torque wrench connector and sleeve adapter connection matching structure according to claim 1, characterized in that: The connecting head (21) is square.
5. The sleeve adapter is characterized by: One end of the sleeve adapter is provided with a connection hole (11) for rotationally cooperating with a square connector (21) of a torque wrench; along the clockwise rotation direction of the connection hole (11), a protruding first positioning plane (12) and a third positioning plane (14) are provided in the connection hole (11); along the counterclockwise rotation direction of the connection hole (11), a protruding second positioning plane (13) and a fourth positioning plane (15) are also provided in the connection hole (11); The third positioning plane (14) is parallel to the first positioning plane (12), and the fourth positioning plane (15) is parallel to the second positioning plane (13).
6. The sleeve adapter according to claim 5, characterized in that: The connecting hole (11) is a circular hole.
7. The sleeve adapter according to claim 5, characterized in that: A first boss (16) and a second boss (17) are axially symmetrically arranged on both sides of the connection hole (11); the distance between the top of the first boss (16) and the top of the second boss (17) is greater than the width of the connection head (21); the two side surfaces of the first boss (16) and the second boss (17) are inclined to form a structure with a small top width and a large bottom width; one side surface of the first boss (16) forms a first positioning plane (12), and the other side surface forms a second positioning plane (13); one side surface of the second boss (17) forms a third positioning plane (14), and the other side surface forms a fourth positioning plane (15).
8. The sleeve adapter according to claim 5, characterized in that: The other end of the sleeve adapter is provided with a square hole or a hexagonal hole.