TWM569675U - Telescopic torsion wrench - Google Patents

Abstract

The present invention provides a telescopic torque wrench, comprising: a main rod body, an adjusting tube, an adjusting device, an extension tube and a positioning device, wherein the adjusting device is arranged between the adjusting tube and the main rod body for controlling the adjusting tube Whether to rotate relative to the main rod body, thereby adjusting the torque value; the positioning device is disposed between the extension tube and the adjustment tube, and the positioning device moves between a first position and a second position, and when the positioning device is in the first position, the positioning device is connected to Between the adjusting tube and the extension tube; when the positioning device is in the second position, the extension tube can move along the axial direction of the adjustment tube toward the main rod body; thereby, the extension tube is folded into the adjustment tube to shorten the torque wrench The overall length is easy to carry and store.

Description

Telescopic torque wrench

This creation is about a torque wrench, especially a telescopic torque wrench that can adjust the overall length of the torque wrench.

Press, the general torque wrench is usually used to set the torque value, so that it can be assembled according to various components, and select the appropriate torque setting value during the disassembly process; wherein the torque wrench has a body, and one end of the body is provided with a driving head The inside of the body is provided with a torsion jumping mechanism. The torsion jumping mechanism has a central push rod, and the torque is set by adjusting the torque value by rotating the grip and abutting the central push rod, and then, through the driving head. Lock the job.

The above-mentioned torque wrench is welcomed by the high-precision field. At present, in the field of large-scale precision tools such as airplanes, ships and automated machinery, it is necessary to use a torque wrench for maintenance or assembly production; however, the screw size and torque required for the above-mentioned large-scale machine are required. It is so large that there are large torque wrenches on the market that are up to 1 meter to 2 meters long.

However, the torque value of the torque wrench is adjusted by the internal torque tripping mechanism, and in order to cooperate with the design of the torque tripping mechanism, the general torque wrench cannot be disassembled in stages; therefore, the large torque wrench is stored and carried. inconvenient.

No. US20140068909A1 discloses a torque wrench comprising a grip, a torque tripping mechanism, a force applying rod and at least one combination rod. The grip has a hollow handle and an extension cylinder, the torsion jumping mechanism is installed between the hollow handle and the extension cylinder, and the force applying rod is coupled with the torsion jumping mechanism to be pivotally mounted on the extension cylinder, and one end of the force application rod is used for the combination of the combination rod and the axial joint. Thereby, the force-applying rod can be connected with different combination rods according to requirements to extend the wrench torque length.

Although the aforementioned patent can detach the combination rod from the force rod to reduce the overall length of the torque wrench, for a large torque wrench, the length of the handle still accounts for at least one-half of the overall length of the torque wrench; and the aforementioned patent In order to match the design of the torque tripping mechanism, the grip cannot be disassembled in sections, and only the combination lever is detached from the urging rod, so the length of the torque wrench cannot be effectively reduced, so the torque wrench is still received. The length is affected and it is not convenient to store and carry.

In order to solve the above problems, the present invention provides a telescopic torque wrench that can fold the extension tube into the adjustment tube to effectively shorten the overall length of the torque wrench, thereby achieving the effect of being convenient to carry and store.

An embodiment of the present invention provides a telescopic torque wrench, comprising: a telescopic torque wrench, comprising: a main rod body having a driving end and a mounting end, wherein the driving end is provided with a driving portion for driving The part is for receiving the working piece; the adjusting tube has a first connecting end and a second connecting end, the first connecting end is sleeved on the mounting end, and the adjusting tube has an accommodating space; a torque adjusting component, The device is disposed between the main rod body and the accommodating space; an adjusting device is disposed between the main rod body and the adjusting tube, and the adjusting device is configured to control the rotation of the adjusting tube relative to the main rod body to adjust the torque value through the torque adjusting component; An extension tube having a first end portion, the first end portion is slidably disposed in the accommodating space; and a positioning device disposed between the adjustment tube and the extension tube, and the positioning device is disposed along an axial direction perpendicular to the adjustment tube The positioning device moves between a first position and a second position. When the positioning device is in the first position, the positioning device is connected between the adjusting tube and the extension tube; when the positioning device is in the second position, the extension tube can be along the adjusting tube Axial A connection direction.

According to the above, the telescopic torque wrench of the present invention can be moved between the first position and the second position through the positioning device to adjust whether the extension tube is folded in the adjustment tube; thereby, the torque wrench can be adjusted according to the demand. The overall length, when it is necessary to carry and store the torque wrench, the extension tube is folded into the adjustment tube to effectively shorten the overall length of the torque wrench, thereby achieving the effect of being convenient to carry and store.

In one embodiment, the adjusting tube is provided with a limiting hole, and the extending tube defines a guiding groove along the axial direction of the main rod body, the limiting hole corresponds to the guiding groove, and the limiting hole is arranged between the limiting hole and the guiding groove. There is a son. Thereby, during the movement of the extension tube relative to the adjustment tube, the guiding groove slides relative to the tweezers to guide the extension tube to prevent the extension tube from rotating during the movement process, thereby causing the extension tube to be displaced, thereby causing the positioning device Unable to be in the first position.

In one embodiment, the outer periphery of the contact portion is in point contact with the inner circumference of the adjustment tube; thereby, the contact area between the end member and the adjustment tube can be effectively reduced, and the process of folding the extension tube into the adjustment tube is further improved. Smooth.

In one embodiment, there is a gap between the outer circumference of the extension tube and the inner circumference of the adjustment tube; thereby, the extension tube is prevented from directly contacting the adjustment tube, and the extension tube is prevented from being caught in the adjustment tube, and the extension tube is The adjustment tubes rub against each other, which causes damage to the extension tubes and the adjustment tubes.

In one embodiment, a closed loop is provided at the nozzle of the second connecting end; thereby avoiding dust or foreign matter entering the accommodating space, thereby causing damage to the internal structure, thereby affecting the folding effect of the extending tube and reducing The service life of the torque wrench.

For the convenience of the description, the central idea expressed in the column of the above novel content is expressed by a specific embodiment. The various items in the examples are drawn to scale in the description and not to the actual elements, and are described in the foregoing.

Referring to FIG. 1 to FIG. 6, the present invention provides a telescopic torque wrench 100, which comprises:

The main body 10 has a driving end 11 and a mounting end 12. The driving end 11 is provided with a driving part 13 for receiving the working piece. In the present embodiment, the driving part 13 is a ratchet sleeve. Barrel connector type.

An adjusting tube 20 having a first connecting end 21 and a second connecting end 22, the first connecting end 21 is sleeved on the outer periphery of the mounting end 12, and the second connecting end 22 is provided with a closed loop at the nozzle end. 30. The inside of the adjusting tube 20 is provided with an accommodating space 23 in the axial direction. Further, the adjusting tube 20 is disposed adjacent to the second connecting end 22 and defines a positioning hole 24 and a limiting hole 25. The positioning hole 24 is spaced apart from the limiting hole 25. In the present embodiment, the positioning hole 24 and the limiting hole are provided. 25 is disposed at intervals of one-half of the circumference of the outer circumference of the adjustment tube 20.

A torque adjustment component 40 is disposed between the main body 10 and the accommodating space 23 of the adjusting tube 20, and the torque adjusting component 40 has an elastic member 41, a urging rod 42 and an adjusting structure (not shown) The two ends of the elastic member 41 abut against one end of the urging rod 42 and the adjusting structure, and the other end of the urging rod 42 is connected to the main rod body 10, and the adjusting structure is coupled with the adjusting tube 20.

An adjusting device 50 is disposed between the main rod body 10 and the adjusting tube 20, and the adjusting device 50 moves between a locking position and a releasing position, and the adjusting device 50 is configured to control whether the adjusting tube 20 can rotate relative to the main rod 10 When the adjusting device 50 is in the locking position, the adjusting tube 20 cannot rotate relative to the main rod body 10; when the adjusting device 50 is rotated from the locking position to the relaxed position, the adjusting tube 20 can be rotated relative to the main rod body 10, The torque of the telescopic torque wrench 100 is adjusted by adjusting the pre-force of the torque adjustment component 40 acting on the driving portion 13 .

An extension tube 60 having a first end portion 61 and a second end portion 62 disposed oppositely, the first end portion 61 is slidably disposed in the accommodating space 23 of the adjustment tube 20, and the outer periphery of the second end portion 62 has The embossed road, wherein the second end portion 62 of the extension tube 60 is for providing a user's grip, and the embossed texture of the outer periphery of the second end portion 62 can provide a non-slip effect.

The extension tube 60 is disposed adjacent to the first end portion 61. The alignment hole 63 of the extension tube 60 can correspond to the positioning hole 24 of the adjustment tube 20; the extension tube 60 is recessed in the axial direction with a guiding groove 64. The guiding groove 64 of the tube 60 can correspond to the limiting hole 25 of the adjusting tube 20, and a latch 70 is disposed between the limiting hole 25 and the guiding groove 64, wherein the latch 70 is stuck in the limiting hole 25, and a part thereof The guide groove 64 is inserted into the guide groove 64. In the present embodiment, the die 70 is spherical.

The first end portion 61 of the extension tube 60 is provided with an end piece 65 which can be integrally formed with or separately from the extension tube 60. In the present embodiment, the end piece 65 is disposed separately from the extension tube 60. Furthermore, the end member 65 is disposed along the axial direction of the extension tube 60. The end member 65 has a contact portion 651 and a joint portion 652. The contact portion 651 is in contact with the inner circumference of the adjustment tube 20, wherein the outer periphery of the contact portion 651 is The inner circumference of the adjustment tube 20 is a point contact. In the present embodiment, the outer circumference of the contact portion 651 is a curved surface.

The connecting portion 652 is disposed in the first end portion 61 of the extension tube 60. The connecting portion 652 of the end member 65 and the extension tube 60 are interlocked and coupled to each other by a locking member 80, thereby adding the end member through the locking member 80. The strength of the connection between 65 and extension tube 60. Furthermore, the end member 65 defines a positioning groove 653 at the connecting portion 652, and the positioning groove 653 can communicate with the positioning hole 24 and the alignment hole 63.

A positioning device 90 is disposed between the adjusting tube 20 and the extending tube 60 in an axial direction perpendicular to the adjusting tube 20; the positioning device 90 has a positioning member 91 and an elastic member 92, and the two ends of the elastic member 92 respectively abut Between the positioning member 91 and the positioning groove 653; in the normal state, the elastic member 92 pushes the positioning member 91 between the positioning hole 24, the alignment hole 63 and the positioning groove 653, wherein the elastic member 92 is a spring.

The positioning device 90 is movable between a first position and a second position. When the positioning device 90 is subjected to a force that is relatively perpendicular to the axial direction of the extension tube 60, the first position is moved to the second position, wherein The external force of the positioning device 90 can be transmitted through the tool or the pressure of the user's hand.

Referring to FIG. 3, when the positioning device 90 is in the first position, the elastic member 92 pushes the positioning member 91 to the positioning hole 24 of the adjusting tube 20, the alignment hole 63 of the extension tube 60, and the end member 65. Positioning slot 653.

Referring to FIG. 2 and FIG. 4, the positioning device 90 is subjected to a force that is relatively perpendicular to the axial direction of the extension tube 60, and is moved from the first position to the second position, and the elastic member 92 is pressed by the external force to cause the positioning member. 91 is retracted from the positioning hole 24, and between the alignment hole 63 and the positioning groove 653, the extension tube 60 is no longer engaged with the adjustment tube 20.

Referring to FIG. 2, FIG. 5 to FIG. 6, when the positioning device 90 is in the second position, the user can hold the second end portion 62 of the extension tube 60 and extend the extension tube 60 along the axis of the adjustment tube 20. Pushing toward the first connecting end 21, the positioning device 90 is restrained between the alignment hole 63 and the positioning groove 653 by the inner side of the adjusting tube 20, and the extension tube 60 and the end member 65 are no longer restricted by the positioning device 90, The end member 65 and the extension tube 60 can be moved according to the thrust; at the same time, since the outer circumference of the extension tube 60 has a gap between the outer circumference of the adjustment tube 20 and the contact portion 651 is in contact with the inner circumference of the adjustment tube 20, The extension tube 60 can smoothly move relative to the adjustment tube 20; further, while the extension tube 60 moves, the guide groove 64 slides relative to the forceps 70, and the forceps 70 can guide the extension tube 60 to prevent the extension tube 60 from moving while being generated. Turn.

When the extension tube 60 needs to be withdrawn from the accommodating space 23 of the adjustment tube 20, the user can hold the second end portion 62 of the extension tube 60 and move the extension tube 60 along the axial direction of the adjustment tube 20 toward the adjustment tube 20. The direction of the second connecting end 22 is pulled, and the guiding groove 64 slides relative to the latch 70 until the positioning device 90 again corresponds to the positioning hole 24, and the elastic force of the elastic member 92 pushes the positioning member 91 into the positioning hole 24 The positioning device 90 is returned to the first position again to lengthen the overall length of the telescopic torque wrench 100 to meet the operational requirements.

In summary, the telescopic torque wrench 100 of the present invention has the following effects:

1. The telescopic torque wrench 100 of the present invention can be moved between the first position and the second position by the positioning device 90, so that the overall length of the telescopic torque wrench 100 can be adjusted according to requirements, and the telescopic torque needs to be carried and stored. When the wrench 100 is used, the extension tube 60 is folded into the adjustment tube 20 to effectively shorten the overall length of the telescopic torque wrench 100, thereby achieving the effect of being convenient to carry and store.

2. The contact portion 651 of the end member 65 is in contact with the inner peripheral edge of the adjusting tube 20 to prevent the extension tube 60 from directly contacting the adjusting tube 20, preventing the extension tube 60 from being caught in the adjusting tube 20, and extending the tube 60 and the adjusting tube. The friction between the extension tube 60 and the adjustment tube 20 occurs, thereby increasing the service life of the telescopic torque wrench 100.

3. The end member 65 is in point contact with the adjustment tube 20, which can effectively reduce the contact area between the end member 65 and the adjustment tube 20, and make the extension tube 60 smoother during the folding process.

4. During the movement of the extension tube 60 relative to the adjustment tube 20, the forceps 70 will be slidably disposed in the guide groove 64 to provide a guiding effect to prevent the extension tube 60 from rotating during the movement, resulting in When the extension tube 60 is displaced, causing the extension tube 60 to be withdrawn again from the adjustment tube 20, the positioning device 90 cannot be reset back to the first position by the second position.

5. The closing ring 30 provided at the nozzle of the second connecting end 22 of the adjusting tube 20 can prevent dust or foreign matter from entering the accommodating space 23, thereby improving the service life of the telescopic torque wrench 100.

The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of this creation are all in the scope of this creative intention.

100‧‧‧Retractable Torque Wrench
10‧‧‧ main body
11‧‧‧Driver
12‧‧‧Installation end
13‧‧‧ Drive Department
20‧‧‧Adjustment tube
21‧‧‧First connection
22‧‧‧second connection
23‧‧‧ accommodating space
24‧‧‧Positioning holes
25‧‧‧Limited holes
30‧‧‧ Closed ring
40‧‧‧Torque adjustment components
41‧‧‧Flexible parts
42‧‧‧ struts
50‧‧‧Adjustment device
60‧‧‧ Extension tube
61‧‧‧First end
62‧‧‧second end
63‧‧‧ alignment hole
64‧‧‧ guiding slot
65‧‧‧End parts
651‧‧‧Contacts
652‧‧‧Link Department
653‧‧‧ positioning slot
70‧‧‧掣子
80‧‧‧Locker
90‧‧‧ Positioning device
91‧‧‧ Positioning parts
92‧‧‧Flexible parts

Figure 1 is a schematic diagram of the appearance of the creation. Figure 2 is a schematic cross-sectional view of the present creation. Figure 3 is a partially enlarged cross-sectional view (1) of the present invention, showing the positioning device in the first position. Fig. 4 is a partially enlarged cross-sectional view (2) of the present invention, showing the positioning device in the second position. Fig. 5 is a partially enlarged cross-sectional view (3) of the present invention, showing that the extension tube is folded in the accommodating space. Figure 6 is a schematic view of the present embodiment, showing that the extension tube is folded into the adjustment tube.

Claims (10)

A telescopic torque wrench comprising: a main rod body having a driving end and a mounting end, the driving end is provided with a driving portion for receiving a working piece; and an adjusting tube having a first a connecting end and a second connecting end, the first connecting end is sleeved on the mounting end, the adjusting tube has an accommodating space; a torque adjusting component is disposed on the main rod body and the accommodating space An adjusting device is disposed between the main rod body and the adjusting tube, wherein the adjusting device is configured to control the adjusting tube to rotate relative to the main rod body to adjust the torque value through the torque adjusting component; The first end portion has a first end portion, the first end portion is slidably disposed in the accommodating space, and a positioning device is disposed between the adjusting tube and the extension tube, and the positioning device is perpendicular to the axis of the adjusting tube The positioning device is moved between a first position and a second position. When the positioning device is in the first position, the positioning device is connected between the adjusting tube and the extension tube; the positioning device is in the second position In the position, the extension tube can follow the adjustment Axial movement of the tube end toward the first connecting direction. The telescopic torque wrench of claim 1, wherein the first end of the extension tube is provided with an end member having a contact portion and a joint portion, the contact portion being in contact with the inner circumference of the adjustment tube The connecting portion is connected to the first end portion, and the positioning device is connected between the adjusting tube, the connecting portion of the extending tube and the end member. The telescopic torque wrench of claim 2, wherein the adjusting tube is provided with a positioning hole, the extension tube is provided with a pair of positioning holes, and the connecting portion of the end member defines a positioning groove, the positioning hole, the pair The positioning hole and the positioning groove can communicate with each other and provide the positioning device. When the positioning device is in the first position, the positioning device is connected between the positioning hole, the alignment hole and the positioning groove; In the second position, the positioning device is coupled to the alignment hole and the positioning slot. The telescopic torque wrench of claim 3, wherein the positioning device has a positioning member and an elastic member, and two ends of the elastic member abut against the positioning member and the positioning groove. The telescopic torque wrench of claim 1 , wherein the adjusting tube is provided with a limiting hole, and the extending tube is recessed in the axial direction, and the limiting hole corresponds to the guiding groove, and the limiting position is A dice is arranged between the hole and the guiding groove. The telescopic torque wrench of claim 2, wherein the outer circumference of the contact portion is in point contact with the inner circumference of the adjustment tube. The telescopic torque wrench of claim 6, wherein the outer periphery of the contact portion is a curved surface. The telescopic torque wrench of claim 1, wherein a closed loop is provided at the nozzle of the second connecting end. The telescopic torque wrench of claim 1, wherein the extension tube has a second end opposite to the first end, and the second end is when the extension tube is folded into the accommodating space. Exposed to the accommodating space. The telescopic torque wrench of claim 9, wherein the outer periphery of the second end portion has a concave-convex texture.