Torque sleeve
Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- 彭 家辉
- Filing Date
- 2025-01-23
- Publication Date
- 2026-08-01
AI Technical Summary
Conventional torque sleeves with torque value displays are expensive, complex, and burdensome for infrequent users due to their numerous parts and intricate structure, making them unaffordable and inefficient for ordinary users.
A torque sleeve design with a simplified structure comprising an outer cylinder, inner cylinder, spring, and linear displacement unit, allowing torque adjustment through a spiral groove and bead mechanism, enabling precise torque control without the need for expensive tools.
Enables affordable, easy assembly, and precise torque control using ordinary hand tools, reducing costs and complexity while maintaining market competitiveness.
Smart Images
Figure TWG2TA001069871_001 
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Abstract
Description
[Technical Field]
[0001] This invention relates to hand tools, and more specifically to a torque sleeve. [Previous Technology]
[0002] Generally, when tightening or loosening a locking component (such as a screw, bolt, nut, etc.), a hand tool or a powered hand tool (such as an electric or pneumatic one) is used. However, when professional technicians use it, they not only use powered hand tools, but also need a tool that can set the torque value. However, such a hand tool with a set torque value (such as a torque wrench) is expensive, which is a significant burden for those who do not use it often.
[0003] Therefore, in order to allow ordinary users to control the torque when tightening or loosening locking components using ordinary hand tools, some manufacturers have developed a "torque socket with torque value display," as disclosed in Taiwan Utility Model Patent Certificate No. M567163. However, the aforementioned patent has too many parts and an overly complex structure, especially the "torque adjustment assembly," which is still a considerable expense for ordinary light users. Therefore, developing a torque socket that can be used with ordinary fixed hand tools, displays the torque value, has fewer parts, a simple structure, and is inexpensive would be a problem that relevant manufacturers urgently need to solve. [Summary of the Invention]
[0004] In view of this, in order to improve the problems of excessive parts, complex structure, high cost, and excessive cost passed on to consumers in the prior art torque sleeve with torque value display, the present invention provides a torque sleeve comprising: an outer cylinder having a sleeve hole formed axially inward at one end and a set of holes formed axially inward at the other end, a step being formed between the set of holes and the sleeve hole; a receiving hole being formed on the inner wall of the outer cylinder; and a plurality of torque value numbers arranged in a ring on the outer peripheral surface of the outer cylinder; an inner cylinder having one end inserted into the set of holes of the outer cylinder and a driving hole formed axially inward at the other end; and a driving hole being formed on the outer peripheral surface of the inner cylinder. The device includes an indicator line; a spring, placed in the assembly hole of the outer cylinder, with one end abutting against the step and the other end abutting against the inner cylinder; and a linear displacement unit, having a spiral groove and a bead. The spiral groove is formed in a spiral shape on the outer circumferential surface of the inner cylinder, and the bead is placed between the spiral groove and the receiving hole. When at least one of the outer or inner cylinders is rotated by an external force, the bead can slide along the spiral groove, causing the inner cylinder to perform vertical linear displacement within the assembly hole, thereby compressing and releasing the spring. This achieves the effects of adjusting torque value, fewer parts, easy assembly, simple structure, low cost, and market competitiveness.
Implementation Method
[0005] In order to enable your review committee to have a better understanding and recognition of the features and characteristics of the present invention, the following preferred embodiments are listed and described in conjunction with the drawings;
[0006] Please refer to Figures 1 to 7, which show a torque sleeve 100 provided in a preferred embodiment of the present invention, mainly comprising an outer cylinder 10, an inner cylinder 20, a spring 30 and a spring 40, wherein;
[0007] Please refer to Figures 1 to 7. The outer cylinder 10 has an outer cylinder body 11, a limiting ring 12, and a torque value digital group 13. The outer cylinder body 11 is integrally formed and is cylindrical. One end of the outer cylinder body 11 extends axially inward to form a socket 111. The socket 111 is a square hole with an arc groove on the hole wall for a hand tool socket 91 to be inserted and rotated (as shown in Figure 3). The other end of the outer cylinder body 11 extends axially inward to form a set of connecting holes 112. The diameter of the connecting holes 112 is larger than the diameter of the socket 111. The main body 11 has a receiving hole 113 that radially penetrates the inner wall of the assembly hole 112 to the outer side. The limiting ring 12 is fixedly sleeved on the outer circumferential surface of the outer cylinder body 11 to close the outer opening of the receiving hole 113. The torque value group 13 has a plurality of torque value numbers 131 arranged in a ring. In this embodiment, the torque value numbers 131 are 15, 25, 35, and 45, and are arranged in a ring along the outer surface of the outer cylinder body 11. It should be noted that the torque value number 131 can represent any of the units Kgm (kilogram-meter), Nm (newton-meter), and lb-ft (foot-pound). This embodiment uses Nm (newton-meter) as an example.
[0008] Please refer to Figures 1 to 7. The inner cylinder 20 is integrally formed, with one end extending axially inward to form a circular hole 21. The other end of the inner cylinder 20 extends axially inward to form a driving hole 22. The driving hole 22 is a hexagonal hole, which can be sleeved with a locking member 92 to drive it to rotate (as shown in Figure 3). The driving hole 22 communicates with the circular hole 21. An indicator line 23 is provided on the outer circumferential surface of the inner cylinder 20. The inner cylinder 20 is inserted into the assembly hole 112 of the outer cylinder 10 with one end of the circular hole 21.
[0009] Please refer to Figures 1, 3, 5 and 7. The spring 30 is placed inside the assembly hole 112 of the outer cylinder 10, with one end abutting against a step 114 formed between the assembly hole 112 and the sleeve hole 111, and the other end abutting against the end of the inner cylinder 20 formed with the round hole 21. That is, the spring 30 abuts against the inner cylinder 20 and the outer cylinder 10.
[0010] Please refer to Figures 1 to 7. The linear displacement unit 40 has a spiral groove 41 and a bead 42. The spiral groove 41 is formed in a spiral shape extending from the outer circumference of the inner cylinder 20; the bead 42 is placed between the spiral groove 41 and the receiving hole 113 of the outer cylinder 10. When at least one of the outer cylinder 10 or the inner cylinder 20 is rotated by an external force, the bead 42 can slide along the spiral groove 41, or slide relative to the spiral groove 41, thereby achieving a linear up-and-down displacement of the inner cylinder 20 within the connecting hole 112, thereby compressing or releasing the spring to adjust the torque value.
[0011] Therefore, the above is an introduction to the components and assembly method of a torque sleeve 100 provided by a preferred embodiment of the present invention. Its usage features are then introduced below.
[0012] First, as shown in the third figure, when using the present invention, the socket 91 of the hand tool is fitted into the socket hole 111 of the outer cylinder 10, and the drive hole 22 of the inner cylinder 20 is fitted onto the locking member 92. There is no order in which the two are fitted, and they can be performed according to convenience.
[0013] Next, as shown in Figures 4 and 5, the indicator line 23 indicates that the torque value 131 is at the position of 15 Nm (Newton-meter). That is, the force exerted by the spring 30 on the inner cylinder 20 is sufficient to resist the torque of 15 Nm (Newton-meter). That is, when the hand tool starts to drive the outer cylinder 10 to rotate, if the inner cylinder 20 has not been subjected to a torque greater than 15 Nm (Newton-meter), the inner cylinder 20 will rotate synchronously with the outer cylinder 10, thereby locking the locking member 92. During the rotation of the outer cylinder 10 and the inner cylinder 20, when the inner cylinder 20 begins to be subjected to a torque greater than 15 Nm (Newton-meters), the inner cylinder 20 will begin to rotate relative to the outer cylinder 10, causing the bead 42 to begin to move along the spiral groove 41 (as shown in Figures 6 and 7). This causes the inner cylinder 20 to move linearly and compress the spring 30. When the inner cylinder 20 and the outer cylinder 10 rotate relative to each other, the indicator line 23 will point to the corresponding torque value number 131 (as shown in Figure 6, it points to the torque value number 35 Nm (Newton-meters)). In this way, the user can rotate the hand tool to drive the locking part to rotate while watching the indicator line 23 move to the desired torque value number 131, thus achieving precise control of the torque value.
[0014] Therefore, the present invention can not only control the torque value of the locking component, but more importantly, the present invention can be used with hand tools that do not have a torque mechanism, so that there is no need to purchase expensive tools such as torque wrenches. Moreover, the present invention has few parts, is easy to assemble, has a simple structure, is not easily damaged, has low cost, is affordable, and is highly competitive in the market.
[0015] Finally, although in the above embodiment the torque value digital group 13 is disposed on the outer cylinder body 11, in fact, as shown in Figure 8, the torque value digital group 13 can also be disposed on the limiting ring 12, which can also achieve the same effect. [Simplified Explanation of the Diagram]
[0016] Figure 1 is an exploded perspective view of a preferred embodiment of the present invention. Figure 2 is a perspective combined view of the embodiment shown in Figure 1. Figure 3 is a schematic diagram of the usage state of the embodiment shown in Figure 1. Figure 4 is a schematic diagram of the operation of the embodiment shown in Figure 1 during initial operation. Figure 5 is a cross-sectional schematic diagram of the embodiment shown in Figure 1 during initial operation. Figure 6 is a schematic diagram of the operation of the embodiment shown in Figure 1 during the middle stage of operation. Figure 7 is a cross-sectional schematic diagram of the embodiment shown in Figure 1 during the middle stage of operation. Figure 8 is a perspective combined view of another embodiment of the present invention.
Claims
1. A torque sleeve, comprising: an outer cylinder having an outer cylinder body and a limiting ring, the outer cylinder body being integrally formed in a cylindrical shape, one end of the outer cylinder body extending axially inward to form a sleeve hole, and the other end extending axially inward to form a set of connecting holes, the diameter of the set of connecting holes being larger than the diameter of the sleeve hole, a step being formed between the set of connecting holes and the sleeve hole, the outer cylinder body having a receiving hole radially penetrating the inner wall of the set of connecting holes to the outer side surface, the outer circumferential surface of the outer cylinder body having a plurality of torque value numbers arranged in a ring, and the limiting ring being fixedly sleeved on the outer circumferential surface of the outer cylinder body to close the outer opening of the receiving hole; an inner cylinder having one end inserted into the set of connecting holes of the outer cylinder, and the other end having a driving hole extending axially inward, the outer circumferential surface of the inner cylinder having an indicator mark; A spring is placed inside the assembly hole of the outer cylinder, with one end abutting against the step and the other end abutting against the inner cylinder; a linear displacement unit has a spiral groove and a bead, the spiral groove being formed in a spiral shape on the outer circumferential surface of the inner cylinder, and the bead being placed between the spiral groove and the receiving hole; when at least one of the outer cylinder or the inner cylinder is rotated by an external force, the bead can slide along the spiral groove, thereby causing the inner cylinder to move up and down linearly within the assembly hole, thereby compressing and releasing the spring to adjust the torque value.
2. The torque sleeve as described in claim 1, wherein, These torque values are formed on the outer circumferential surface of the outer cylinder body.
3. The torque sleeve as described in claim 1, wherein, These torque values are formed on the outer circumferential surface of the limiting ring.
4. The torque sleeve as described in claim 1, wherein, These torque values are 15, 25, 35, and 45 Nm (Newton-meters).
5. The torque sleeve as described in claim 1, wherein, The inner cylinder is integrally formed, and the end of it that passes through the assembly hole extends axially inward to form a circular hole, and the drive hole communicates with the circular hole.
6. The torque sleeve as described in claim 1, wherein, When the outer cylinder and the inner cylinder rotate relative to each other, the spring is compressed and released, and the indicator line will point to the corresponding torque value.