Torque wrench connector and sleeve adapter connecting and matching structure and sleeve adapter

Abstract

The utility model provides the connecting and matching structure of the torque wrench connector and the sleeve adapter, which is better matched with the wrench connector, and the sleeve adapter, so as to reduce or avoid the condition that the torque wrench deflects when applying torque, and improve the accuracy of the actually applied torque of the torque wrench. One end of the sleeve adapter is provided with a connecting hole used for being matched with a square connector of a torque wrench in a rotating mode, and a first protruding positioning plane and a third protruding positioning plane are arranged in the connecting hole in the clockwise rotation direction of the connecting hole. A second convex positioning plane and a fourth convex positioning plane are also arranged in the connecting hole in the anticlockwise rotating direction of the connecting hole; the third positioning plane is parallel to the first positioning plane, and the fourth positioning plane is parallel to the second positioning plane.

Description

Technical Field

[0001] This utility model relates to the field of wrench adapter technology, specifically a connection and mating structure between a torque wrench connector and a socket adapter, and a socket adapter. Background Technology

[0002] Socket adapters are common mechanical connectors, primarily used for adapting or extending the functionality of wrenches and bolts. Since wrench connectors typically have a square structure, the connection hole on one end of the socket adapter is usually square or oblong to ensure a proper fit. To allow the wrench connector to insert into the socket adapter's connection hole, a relatively large clearance is required between the connection hole and the wrench connector to form a clearance fit, typically greater than or equal to 0.1mm. This results in the wrench connector being able to rotate and oscillate relative to the connection hole, causing line contact between the connector and the hole wall. This can easily lead to misalignment of the torque wrench, resulting in a discrepancy between the displayed torque and the actual applied torque, or incomplete torque application—a phenomenon known as false torque. This poses a significant quality risk in applications with strict torque requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a torque wrench connector and socket adapter connection structure and socket adapter that better match the torque wrench connector, so as to reduce or avoid the misalignment of the torque wrench when applying torque and improve the accuracy of the actual torque applied by the torque wrench.

[0004] The present invention provides a connection structure for a torque wrench connector and a socket adapter. One end of the socket adapter has a connection hole for inserting a square connector of the torque wrench. The connection hole is rotatably engaged with the connector. In the clockwise direction of rotation of the connection hole, the connection hole has a protruding first positioning plane for engaging with one side of the connector and a third positioning plane for engaging with the other side of the connector. In the counterclockwise direction of rotation of the connection hole, the connection hole also has a protruding second positioning plane for engaging with one side of the connector and a fourth positioning plane for engaging with the other side of the connector.

[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 connecting hole. When the torque wrench applies torque in the clockwise direction, the connector rotates clockwise so that one side of it fits into the first positioning plane and the other side fits into the third positioning plane. When the torque wrench applies torque in the counterclockwise direction, the connector rotates counterclockwise so that one side of it fits into the second positioning plane and the other side fits into the fourth positioning plane.

[0007] Furthermore, the connecting hole is a circular hole, and the diameter of the connecting hole is greater than or equal to the circumscribed circle diameter of the connector.

[0008] Furthermore, the connecting hole is provided with a first boss and a second boss arranged symmetrically on both sides. 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 sides of the first boss and the second boss are inclined to form a structure with a small top width and a large bottom width. One side of the first boss forms a first positioning plane and the other side forms a second positioning plane. One side of the second boss forms a third positioning plane and the other side forms a fourth positioning plane.

[0009] Furthermore, the connector is square.

[0010] A socket adapter, one end of which is provided with a connecting hole for rotating with a square connector of a torque wrench; a first positioning plane and a third positioning plane are provided in the connecting hole in the clockwise direction of rotation; a second positioning plane and a fourth positioning plane are also provided in the connecting hole in the counterclockwise direction of rotation.

[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] Furthermore, the connecting hole is a round hole.

[0013] Furthermore, the connecting hole is provided with a first boss and a second boss arranged symmetrically on both sides. 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 sides of the first boss and the second boss are inclined to form a structure with a small top width and a large bottom width. One side of the first boss forms a first positioning plane and the other side forms a second positioning plane. One side of the second boss forms a third positioning plane and the other side forms a fourth positioning plane.

[0014] Furthermore, the other end of the sleeve adapter shown is provided with a square hole or an internal hexagonal hole.

[0015] The beneficial effects of this utility model are: the torque wrench connector and socket adapter connection and fitting structure of this utility model can ensure that the side of the connector is fully fitted with the corresponding positioning surface (without considering processing errors) to form a surface contact positioning fit, the fit between the connector and the connecting hole is better, and it can avoid the situation where the connector is skewed (tilted) relative to the axis of the connecting hole, and can reduce the phenomenon of false torque. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the existing sleeve adapter connection hole structure;

[0017] Figure 2 This is a schematic diagram of the sleeve adapter of this utility model;

[0018] Figure 3 yes Figure 2 Top view;

[0019] Figure 4 yes Figure 2 A bottom view;

[0020] Figure 5 This is a schematic diagram of the use of the sleeve adapter of this utility model;

[0021] The figure shows: sleeve adapter 1, torque wrench 2, shaft 3, connecting 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 Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] The existing socket adapter has a square or oblong hole 11 with a width that matches the wrench connector. Figure 1 The connecting hole 11 is an oblong hole. For example... Figure 1 As shown, to facilitate the insertion and removal of the wrench connector, the width of the connecting hole needs to be greater than the width of the connector to form a clearance fit, typically greater than or equal to 0.1mm. This causes the torque wrench connector 21 to rotate slightly and make line contact with the wall of the connecting hole 11 when the torque wrench applies torque through the socket adapter. This can easily lead to the torque wrench becoming misaligned, resulting in a discrepancy between the torque displayed on the torque wrench and the actual torque applied to the bolt through the socket adapter. This misalignment results in insufficient torque application, a phenomenon known as false torque, which affects product quality.

[0024] To solve the above problems, such as Figures 2 to 5As shown, this utility model discloses a connection structure for a torque wrench connector and a socket adapter. One end of the socket adapter 1 has a connection hole 11 for inserting a square connector 21 of the torque wrench 2. The connector 21 is typically square. The connection hole 11 rotatably engages with the connector 21, allowing the connector to rotate within the connection hole 11. In a clockwise rotational direction, the connection hole 11 has a protruding first positioning plane 12 for engaging with one side of the connector 21 and a third positioning plane 14 for engaging with the other side of the connector 21. In a counter-clockwise rotational direction, the connection hole 11 also has a protruding second positioning plane 13 for engaging with one side of the connector 21 and a fourth positioning plane 15 for engaging with the other side of the connector 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. Figure 5 As shown, the connector 21 is inserted into the connecting hole 11. When the torque wrench applies torque in the clockwise direction, the connector 21 rotates clockwise within the connecting hole so that one side of it fits into the first positioning plane 12 and the other side fits into the third positioning plane 14. When the torque wrench applies torque in the counterclockwise direction, the connector 21 rotates counterclockwise within the connecting hole so that one side of it fits into the second positioning plane 13 and the other side fits into the fourth positioning plane 15.

[0025] The torque wrench connector and socket adapter connection structure of this utility model has a connecting hole 11 at one end of the socket adapter, which is configured to rotatably engage with the connector. A first positioning plane 12 and a third positioning plane 14 are provided along the clockwise rotation direction of the connecting hole 11, i.e., along the clockwise rotation path of the connector. A second positioning plane 13 and a fourth positioning plane 15 are provided along the counterclockwise rotation direction of the connecting hole 11, i.e., along the counterclockwise rotation path of the connector. When the connector 21 is connected to the connecting hole 11, rotating the connector causes one side of the connector to engage with the first positioning plane 12 and the other side with the third positioning plane 14, or one side of the connector to engage with the second positioning plane 13 and the other side with the third positioning plane 14. The surface of the connector 21 fits into the fourth positioning plane 15, thereby positioning the connector. In this way, no extra space is needed between the third positioning plane 14 and the first positioning plane 12, or 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. This ensures that the side of the connector 21 fits completely with the corresponding positioning surface (without considering processing errors) to form surface contact positioning. This avoids the connector from being skewed (tilted) relative to the axis of the connecting hole, making the torque displayed by the torque wrench more consistent with the actual torque applied to the bolt, and reducing false torque phenomena.

[0026] The connecting hole 11 can be a square hole, a round hole, etc. In this utility model, the connecting hole 11 is a round hole, and the diameter of the connecting hole 11 is greater than or equal to the outer circle diameter of the connector 21. Preferably, the diameter of the connecting hole 11 is greater than the outer circle diameter of the connector 21. The diameter of the connecting hole is generally 0.1 mm larger than the outer circle diameter of the connector 21.

[0027] like Figure 3 and Figure 4As shown in the embodiment of this utility model, the connecting hole 11 is provided with a first boss 16 and a second boss 17 arranged symmetrically on both sides. The first boss 16 and the second boss 17 are symmetrically arranged with respect to the axis 3 perpendicular to the line connecting them. 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 connector 21, so that the connector 21 can be inserted into the connecting hole between the top of the first boss 16 and the top of the second boss 17. The two sides 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. This structure can be a V-shaped structure or a trapezoidal structure, etc. The figure shows a V-shaped structure, so that the connector can rotate clockwise or counterclockwise to cooperate with the corresponding positioning surface. One side of the first boss 16 forms a first positioning plane 12 and the other side forms a second positioning plane 13. One side of the second boss 17 forms a third positioning plane 14 and the other side 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 may also be arranged in a non-axisymmetric structure.

[0029] like Figures 2 to 4 As shown, this utility model also provides a sleeve adapter for the above-mentioned connection and mating structure. One end of the sleeve adapter is provided with a connecting hole 11 for rotating with a square connector 21 of a torque wrench. Along the clockwise rotation direction of the connecting hole 11, the connecting hole 11 is provided with a first positioning plane 12 for fitting with one side of the connector 21 and a third positioning plane 14 for fitting with the other side of the connector 21. Along the counterclockwise rotation direction of the connecting hole 11, the connecting hole 11 is also provided with a second positioning plane 13 for fitting with one side of the connector 21 and a fourth positioning plane 15 for fitting with the other side of the connector 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, the connecting hole 11 has a first protrusion 16 and a second protrusion 17 arranged symmetrically on both sides. The distance between the top of the first protrusion 16 and the top of the second protrusion 17 is greater than the width of the connector 21, so that the connector 21 can be inserted into the connecting hole between the top of the first protrusion 16 and the top of the second protrusion 17. The two sides of the first protrusion 16 and the second protrusion 17 are inclined to form a trapezoidal structure or a V-shaped structure with a smaller top width and a larger bottom width. The figure shows a V-shaped structure, so that the connector can rotate clockwise or counterclockwise to cooperate with the corresponding positioning surface. One side of the first protrusion 16 forms a first positioning plane 12 and the other side forms a second positioning plane 13. One side of the second protrusion 17 forms a third positioning plane 14 and the other side forms a fourth positioning plane 15.

[0031] In the embodiments of this utility model, the other end of the sleeve adapter is provided with a square hole 18 or a regular hexagonal hole, so that the other end of the sleeve adapter can be connected and fitted with a regular hexagonal bolt head or nut of the corresponding specification.

Claims

1. A connection and mating structure between a torque wrench connector and a socket adapter, wherein one end of the socket adapter is provided with a connection hole (11) for inserting a square connector (21) of the torque wrench, characterized in that, The connecting hole (11) is rotatably engaged with the connector (21). In the clockwise rotation direction of the connecting hole (11), the connecting hole (11) is provided with a first positioning plane (12) for fitting and engaging with one side of the connector (21) and a third positioning plane (14) for fitting and engaging with the other side of the connector (21). In the counterclockwise rotation direction of the connecting hole (11), the connecting hole (11) is also provided with a second positioning plane (13) for fitting and engaging with one side of the connector (21) and a fourth positioning plane (15) for fitting and engaging with the other side of the connector (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); The connector (21) is inserted into the connecting hole (11). When the torque wrench applies torque in the clockwise direction, the connector (21) rotates clockwise so that one side of it fits into the first positioning plane (12) and the other side fits into the third positioning plane (14). When the torque wrench applies torque in the counterclockwise direction, the connector (21) rotates counterclockwise so that one side of it fits into the second positioning plane (13) and the other side fits into the fourth positioning plane (15).

2. The torque wrench connector and socket adapter connection structure as described in claim 1, characterized in that: The connecting hole (11) is a round hole, and the diameter of the connecting hole (11) is greater than or equal to the circumscribed circle diameter of the connector (21).

3. The torque wrench connector and socket adapter connection structure as described in claim 1 or 2, characterized in that: The connecting hole (11) is provided with a first boss (16) and a second boss (17) arranged symmetrically on both sides. 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 connector (21). The two sides 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 of the first boss (16) forms a first positioning plane (12) and the other side forms a second positioning plane (13). One side of the second boss (17) forms a third positioning plane (14) and the other side forms a fourth positioning plane (15).

4. The torque wrench connector and socket adapter connection structure as described in claim 1, characterized in that: The connector (21) is square.

5. A sleeve adapter, characterized in that, One end of the sleeve adapter is provided with a connecting hole (11) for rotating with a square connector (21) of a torque wrench. In the clockwise direction of rotation of the connecting hole (11), a first positioning plane (12) and a third positioning plane (14) are provided inside the connecting hole (11); in the counterclockwise direction of rotation of the connecting hole (11), a second positioning plane (13) and a fourth positioning plane (15) are also provided inside 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).

6. The sleeve adapter as described in claim 5, characterized in that: The connecting hole (11) is a round hole.

7. The sleeve adapter as described in claim 5, characterized in that: The connecting hole (11) is provided with a first boss (16) and a second boss (17) arranged symmetrically on both sides. 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 connector (21). The two sides 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 of the first boss (16) forms a first positioning plane (12) and the other side forms a second positioning plane (13). One side of the second boss (17) forms a third positioning plane (14) and the other side forms a fourth positioning plane (15).

8. The sleeve adapter as described in claim 5, characterized in that: The other end of the sleeve adapter shown is provided with a square hole or an internal hexagonal hole.

Images