TWI659806B - Structure of torque socket - Google Patents

Abstract

A torque sleeve structure includes an outer casing having a first end portion, a second end portion opposite to the first end portion, and a receiving chamber formed in an axially inner portion of the outer casing and located at the first end portion. And the second end portion, in addition, the second end portion extends in the direction of the accommodation chamber with a guide cone portion, the guide cone portion has a screw hole in the axial direction; a drive head is disposed in the outer shell A first end portion; a clutch unit is installed in the housing of the outer casing and connected to the driving head; a torque adjusting component is installed in the housing of the outer casing. The torque adjusting component includes: a cap-shaped element is sleeved on the guide cone and is displaceable in the axial direction; two ends of a spring elastically resist the cap-shaped element and the clutch unit respectively; and an adjusting screw lock The screw hole is arranged in the guide cone portion, and one end of the adjusting screw member abuts against the cap-shaped element. Adjusting the position of the adjusting screw member can cause the cap-shaped element to be displaced and change the spring pushing against the clutch unit. Force. This can effectively shorten the overall length of the torsion sleeve, thereby achieving a convenient use effect.

Description

Torsion sleeve structure

The invention relates to a torque sleeve, in particular to a torque sleeve structure which can effectively shorten the overall length and achieve the best operation and use effect.

In general, when a wrench is turned on a screw or nut, in order to fix the screw or nut with the same amount of torque to complete the tightening, a torque sleeve is usually used to achieve it. For example, the national patent No. The known torque sleeve is mainly composed of a first sleeve member and a second sleeve member being fitted together, and a driving spindle and a passive spindle which are capable of engaging and disengaging are inserted through the inside of the first sleeve member. A compression spring is sleeved, and the second sleeve member moves axially on the first sleeve member to drive the compression spring to relax or compress, thereby generating a predetermined amount of torque between the transmission spindle and the passive spindle. Achieve meshing transmission.

The above torque sleeve does have the function of adjusting the torque value, but it has its shortcomings in structure and use. It is known that the torque sleeve is mainly composed of the first sleeve piece and the second sleeve piece being fitted together, and the internal The transmission mandrel and passive mandrel are worn, and the overall components are numerous and complicated, which increases the manufacturing and assembly costs in vain, and these structures will cause the length of the barrel of the entire torque sleeve to be too long. When the user operates the wrench to engage the torque When the sleeve rotates the screw or the nut, the force is slightly misplaced, which will easily cause the torque sleeve to slip off, which is quite inconvenient in operation and use.

Therefore, an object of the present invention is to provide a torque sleeve structure which can effectively shorten the length and achieve the best operation and use effect.

Therefore, the present invention provides a torque sleeve structure, which includes an outer shell, a driving head, a clutch unit, and a torque adjusting assembly, wherein the outer shell has a first end portion and a side opposite to the first end portion. A second end portion and a receiving chamber formed in the housing portion and located between the first and second end portions, the second end portion further extending in a direction of the receiving chamber is provided with a guide cone portion The guide cone is provided with a screw hole penetrating into the container chamber in the axial direction; the driving head is arranged in the first end portion of the outer casing; the clutch unit is arranged in the container chamber of the outer casing, and the clutch unit has An actuating member which can be in contact with the driving head and can act as a clutch; the torque adjusting component is installed in the housing body and has a set of hat-shaped portions provided on the guide cone and capable of being displaced in the axial direction. An element, an elastic element whose two ends respectively abut against the cap-shaped element and the detent element, and an adjusting screw provided in the screw hole and capable of pressing the cap-shaped element.

The effect of the present invention is to use a convex guide cone inside the outer casing for the cap-shaped element to be sleeved, so that the cap-shaped element can be displaced in a limited space to obtain the torque adjustment effect, thereby effectively reducing the overall length of the torque sleeve. To achieve the best results.

10‧‧‧ Outer shell

11‧‧‧ the first end

12‧‧‧ second end

121‧‧‧ set of pivot holes

13‧‧‧capacity room

14‧‧‧Guide cone

141‧‧‧Thread hole

15‧‧‧ longitudinal groove

20‧‧‧Driver

21‧‧‧Driver

22‧‧‧Driver

24‧‧‧Driver

30‧‧‧ clutch unit

31‧‧‧ Actuator

32‧‧‧ Detent Bead

40‧‧‧Torque adjustment kit

41‧‧‧ hat-shaped element

411‧‧‧concave

412‧‧‧stop edge

42‧‧‧Elastic element

43‧‧‧Adjustment screw

50‧‧‧ Indication unit

51‧‧‧instruction pin

52‧‧‧ Scale plate

521‧‧‧in-line groove

522‧‧‧row groove

FIG. 1 is an external view of a first preferred embodiment of the torque sleeve structure of the present invention; FIG. 2 is a combined sectional view of the above-mentioned preferred embodiment, illustrating that the present invention includes an outer casing, a driving head, a clutch unit, and a A torque adjustment component and an indication unit, the torque adjustment component has a cap-shaped element, an elastic element and an adjustment screw; FIG. 3 is a schematic diagram of the operation of the above preferred embodiment, illustrating the case where the adjusting screw is screwed to press the cap-shaped element to compress the elastic element, thereby changing the torque value; and FIG. The combined sectional view of the second preferred embodiment of the present invention illustrates another type of drive head structure of the present invention.

The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiment with reference to the accompanying drawings.

Referring to FIGS. 1 and 2, the torque sleeve structure of the present invention in the first preferred embodiment mainly includes an outer shell 10, a driving head 20, a clutch unit 30, a torque adjusting assembly 40 and an indicating unit 50. Next, the detailed structure and combination space type of each mechanism unit will be described in detail later.

The outer casing 10 is a cylindrical cylindrical structure. One end of the outer casing 10 has a first end portion 11, and the other end is a second end portion 12 relative to the first end portion 11. A receiving chamber 13 between the second end 12 and the receiving chamber 13 is located in an axially inner portion of the outer casing 10. The second end portion 12 is recessed with a sleeve pivot hole 121 through which a wrench (not shown) can be inserted. A guiding cone portion 14 is further extended from the second end portion 12 in the direction of the receiving chamber 13. A screw hole 141 is formed in the guiding cone portion 14 and penetrates into the receiving chamber 13 in the axial direction. In addition, the outer peripheral wall of the outer casing 10 is provided with a longitudinal groove 15 in the axial direction at a position corresponding to the guide cone portion 14.

The driving head 20 can be installed in the first end portion 11 of the outer casing 10, and a driving portion 21 extends from an outer end of the driving head 20 toward the outer direction of the outer casing 10. In this embodiment, the driving portion 21 is a male joint structure.

The clutch unit 30 is installed in the receiving chamber 13 of the outer casing 10, and includes a stopper 31 that can be clutched in contact with the drive head 20, and a plurality of disposition stoppers 31 and the drive head 20.的 cladd beads 32. Before the predetermined torque is reached, the deflector 31 can rotate to drive the driving head 20 by the detent beads 32.

The torque adjusting assembly 40 is installed in the housing 13 of the outer casing 10. The torque adjusting assembly 40 includes a cap-shaped element 41, a spring 42 and an adjusting screw 40. The cap-shaped element 41 is sleeved on the guide cone 14; the two ends of the spring 42 are resiliently abutted between the cap-shaped element 41 and the stopper 31; the adjusting screw 43 is screwed on the The screw hole 141 can push the cap-shaped element 41.

Further, a recess 411 is provided at one side of the hat-shaped element 41, which can be fitted on the guide cone 14 so that the hat-shaped element 41 can be smoothly displaced along the axis direction of the guide cone 14 A blocking edge 412 is protruded at the outer periphery of the 41, and the blocking edge 412 abuts against one end of the elastic element 42, so that when the cap-shaped element 41 is displaced, the elastic element 42 can be compressed.

The indicating unit 50 has an indicating pin 51 that is inserted in the outer periphery of the hat-shaped element 41 and moves in conjunction with it, and a scale plate 52 attached to the outer periphery of the outer casing 10. The end of the indicating pin 51 projects into the longitudinal groove 15. The scale plate 52 is provided with an in-line groove 521 for displaying the position of the indicating pin 51 at a position corresponding to the vertical groove 15 and a plurality of horizontal grooves 522 for scale display.

The above is an overview of the shape and combined space type of each component of the torque sleeve structure of the present invention. Then, the use action and expected effect of the present invention are stated as follows.

Referring to FIG. 3, the user can screw the adjustment screw 43, and the adjustment screw 43 abuts against the cap-shaped element 41 and moves in the axial direction. At this time, the cap-shaped element 41 performs a compression action on the elastic element 42, so that The elastic element 42 provides a pressure to the stopper 31, thereby forming a predetermined torque value.

When the turning torque of the wrench (not shown) connected to the outer casing 10 is greater than a preset torque value formed by the elastic element 42 acting on the detent 31, the detent 31 will jump to the driving head 20. Withdrawing to form an idling state; conversely, when the wrenching torque of the wrench is smaller than a preset torque value formed by the elastic element 42 acting on the detent 31, the detent 31 will form a detent with the driving head 20 and Linked status.

In this way, by adjusting the position of the adjusting screw 43, the force of the elastic member 42 on the detent 31 can be changed, and the effect of adjusting the value of the preset torque can be achieved; more importantly, the technical means of the present invention The guiding cone 14 is protruded inside the outer casing 10 for the cap-shaped element 41 to be sleeved, and the cap-shaped element 41 is inserted in the axially inner portion of the spring 42, thereby achieving that the entire torque sleeve can be effectively shortened. The effect of length.

In addition, since the indicator pin 51 is linked with the cap-shaped element 41, the position change of the indicator pin 51 can be seen on the scale plate 52. With the scale indication of the horizontal groove 522, the user can quickly understand the current torque sleeve Torque value of the cylinder.

Referring to FIG. 4, the second embodiment of the present invention includes an outer casing 10, another driving head 22, a clutch unit 30, and a torque adjusting assembly 40. Different from the first embodiment, another driving head 22 is provided with a driving portion 24 of a female joint structure extending toward the outer side of the outer casing 10, and the driving portion 24 can be used to fit a general locking element and perform rotation locking. Or loose.

The above are the preferred embodiments and design drawings of the present invention, but the preferred embodiments and design drawings are merely examples, and are not intended to limit the scope of the right to the technology of the present invention. Anyone who implements the scope of rights covered by the "Scope of Patent Application" does not depart from the scope of the present invention and is the scope of the applicant's rights.

Claims (6)

A torque sleeve structure includes: an outer casing having a first end portion, a second end portion opposite to the first end portion, and a receiving chamber formed in an axially inner portion of the outer casing and It is located between the first and second end portions. The second end portion further extends in the direction of the accommodating chamber and is provided with a guide cone. The guide cone portion is provided with an axially transparent passage to the container. A screw hole in the room; a driving head, which is arranged in the first end of the outer casing; a clutch unit, which is installed in the housing of the outer casing and connected to the driving head; a torque adjusting component, which is installed in the outer casing In the container chamber, further, the torque adjusting component includes: a cap-shaped element having a recess, the cap-shaped element is sleeved on the guide cone by the recess and can be displaced in the axial direction; and a spring is connected at both ends. Elastically abut against the cap-shaped element and the clutch unit respectively; an adjustment screw is locked to the screw hole provided in the guide cone portion, and one end of the adjustment screw abuts against the cap-shaped element to adjust the adjustment screw The position of the piece can cause the hat-shaped element to be displaced and change the spring pushing against the release Force unit. For example, the torque sleeve structure of the first patent application range, wherein the clutch unit includes a stopper, one end of the stopper is in contact with the driving head, and the other end is in contact with the spring. For example, the torque sleeve structure of the first patent application scope further includes an indicator unit, and a longitudinal groove formed on the outer peripheral wall of the casing at a position corresponding to the guide cone, wherein the indicator unit has a plug shape An indicating pin at the outer periphery of the component and extending into the longitudinal groove, and a scale plate attached to the outer periphery of the casing for displaying the position of the indicating pin. For example, the torque sleeve structure of the third scope of the patent application, wherein the scale plate is provided with a straight groove and a plurality of horizontal grooves at positions corresponding to the longitudinal grooves. For example, the torque sleeve structure of the first patent application scope, wherein the driving head is provided with a driving portion of a male joint structure toward the outer side of the outer casing. For example, the torque sleeve structure of the first patent application range, wherein the driving head is provided with a driving part of a female joint structure toward the outer side of the outer casing.