CN211193658U

CN211193658U - Torsion adapter sleeve

Info

Publication number: CN211193658U
Application number: CN201921783975.0U
Authority: CN
Inventors: 何崇源
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-07
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a torsion switching sleeve, include: a sleeve unit and a driving unit. The sleeve unit comprises a body and a cover body, wherein the body comprises a connecting end, a working end and a containing chamber, the connecting end is provided with a connecting part, the containing chamber penetrates through the working end, the cover body is screwed at the working end, the cover body is concavely provided with at least two concave parts on the outer end surface back to the containing chamber, and a hand tool is inserted into the at least two concave parts; the driving unit comprises a driving head and a torsion tripping mechanism, the torsion tripping mechanism is accommodated in the accommodating chamber and abuts against the cover body, and the driving head is connected with the torsion tripping mechanism and penetrates through the cover body to protrude out of the cover body.

Description

Torsion adapter sleeve

Technical Field

The present invention relates to a sleeve, and more particularly to a torque adapter sleeve.

Background

When a fastener, such as a screw or a nut, is screwed, the force applied by a user is too large, and the fastener is over-screwed, which often causes tooth breakage, damage, and deadlock, so that the fastener cannot be smoothly separated for reuse, and the structure of the locked object is deformed even if the fastener is heavy, thereby causing a problem of safety in use. However, when the torque applied to the rotation by the user is greater than a certain value, the internal tripping mechanism will trip to break the torque transmission, such as the torque sleeves disclosed in taiwan patent nos. TWM580495, TWM390839, and TWM 376386.

However, the above-mentioned torsion sleeve has a large volume and a long length, and is often limited by the surrounding environment and cannot be used smoothly, and occupies too much space to be convenient for storage and carrying; in addition, the number of components is large, and the assembly is inconvenient and time-consuming by an assembler in the production process, so that the defect of urgent need to be improved exists.

Therefore, there is a need for a novel and improved torque adapter sleeve to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a torque force adapting sleeve, which can effectively reduce the overall size of the torque force adapting sleeve, and can effectively simplify the assembling procedure and accelerate the production speed.

To achieve the above object, the present invention provides a torque force adapting sleeve, including:

the sleeve unit comprises a body and a cover body, wherein the body comprises a connecting end, a working end and a containing chamber, the connecting end is provided with a connecting part, the containing chamber penetrates through the working end, the cover body is screwed at the working end, the cover body is concavely provided with at least two concave parts on the outer end surface back to the containing chamber, and a hand tool is inserted into the at least two concave parts;

and the driving unit comprises a driving head and a torsion tripping mechanism, the torsion tripping mechanism is accommodated in the accommodating chamber and abuts against the cover body, and the driving head is connected with the torsion tripping mechanism and penetrates through the cover body to protrude out of the cover body.

The torsion tripping mechanism comprises an elastic component, a first clamping part and a second clamping part, wherein the first clamping part is positioned in the accommodating chamber and comprises a first clamping tooth part, the second clamping part can be selectively and rotatably accommodated in the accommodating chamber relative to the first clamping part, the second clamping part comprises a second clamping tooth part and is connected with the driving head to form a same rotating relation, the elastic component is elastically abutted between the cover body and the second clamping part, and the elastic component forces the second clamping tooth part to be normally meshed with the first clamping tooth part.

The elastic component comprises a plurality of connected disc-shaped springs, and the plurality of elastic springs are sleeved on the driving head; one disk spring is abutted against the second clamping piece, and the other disk spring is abutted against the cover body.

The plurality of disc springs are in an inverted stacked configuration.

A gap is defined between an inner ring surface of each disk spring and an outer ring surface of the driving head, and the distance of the gap is between 0.4mm and 0.8 mm.

The first and second engaging parts are respectively a one-way tooth structure, and the first and second engaging parts can selectively jump teeth along a single direction and rotate relatively.

The sleeve unit further includes at least one positioning mechanism, the positioning mechanism includes a through hole and a positioning member, the through hole radially penetrates through the working end of the body, and the positioning member penetrates through the through hole to abut against and position the cover.

The elastic component is elastically propped between an inner end surface of the cover body and an elastic surface of the second clamping piece; in the axial direction of the body, the distance between the inner end surface and the abutting surface is defined as a first size, the integral thickness of the first clamping piece and the second clamping piece which are mutually meshed is defined as a second size, and the second size is larger than the first size.

The at least two concave parts are distributed on the outer end face at equal angles at intervals by taking the driving head as a center.

The plurality of disc springs are arranged in a reverse stacking manner; the first clamping piece and the second clamping piece can only selectively jump teeth along a single direction and rotate relatively; the sleeve unit further comprises at least one positioning mechanism, the positioning mechanism comprises a through hole and a positioning piece, the through hole radially penetrates through the working end of the body, and the positioning piece penetrates through the through hole to abut against and position the cover body; the elastic component elastically abuts between an inner end face of the cover body and an elastic abutting face of the second clamping piece; in the axial direction of the body, the distance between the inner end surface and the abutting surface is defined as a first size, the integral thickness of the first clamping piece and the second clamping piece which are mutually meshed is defined as a second size, and the second size is larger than the first size; the at least two concave parts are distributed on the outer end surface at equal intervals by taking the driving head as a center; the number of the at least two recesses is four; the number of the plurality of disc-shaped springs is four; the number of the at least one positioning mechanism is two, and the positioning mechanisms are symmetrically arranged by taking the driving head as an axis; the ratio of the first dimension to the second dimension is between 0.6 and 0.8; the driving head and the second clamping piece are integrally formed; in the axial direction of the body, the length of the body is defined as a third dimension, and the ratio of the first dimension to the third dimension is between 0.15 and 0.4.

The utility model has the advantages that: the torque force adapting sleeve has the advantages that the cover body is concavely provided with at least two concave parts for the hand tool to insert and rotate, thereby effectively simplifying the assembly difficulty, easily teaching the assembly personnel, improving the assembly precision and the like; and moreover, the design of the disc-shaped spring can greatly reduce the volume, the weight and the like.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 and 6 are schematic views illustrating a cover body screwed and locked by a hand tool according to an embodiment of the present invention.

Fig. 7 and 8 are schematic views of the tripping mechanism according to an embodiment of the present invention.

1: the sleeve unit 431: disc-shaped spring

2: a body 432: inner ring surface

21: the connection end 44: first clamping part

211: the assembly part 441: first latch part

22: working end 45: second clamping part

23: the chamber 451: second latch part

24: axial direction 452: elastic surface

3: cover 46: gap

31: outer end face 5: positioning mechanism

32: inner end surface 51: through hole

33: concave portion 52: locating piece

4: the drive unit 61: first size

41: the driving head 62: second size

411: outer annular surface 63: third dimension

42: torsion tripping mechanism 7: hand tool

43: elastic component

Detailed Description

The following description is given by way of example only, and not by way of limitation, of the scope of the invention.

Referring to fig. 1 to 8, an embodiment of the present invention is shown, in which the torque adapter sleeve includes a sleeve unit 1 and a driving unit 4.

The sleeve unit 1 includes a body 2 and a cover 3, the body 2 includes a connection end 21, a working end 22 and a containing chamber 23, the connection end 21 has a connection portion 211, the containing chamber 23 penetrates the working end 22, the cover 3 is screwed to the working end 22, at least two concave portions 33 are concavely disposed on an outer end surface 31 of the cover 3 facing away from the containing chamber 23, and a hand tool 7 is inserted into the at least two concave portions 33, so that an assembler can assemble the cover 3 to the body 2 through the hand tool 7, thereby facilitating operation and avoiding hands of the assembler from being dirty and injured.

The driving unit 4 includes a driving head 41 and a torsion trip mechanism 42, the torsion trip mechanism 42 is accommodated in the accommodating chamber 23 and abuts against the cover 3, the depth position of the cover 3 can control the pre-pressing torsion value of the torsion trip mechanism 42, and the driving head 41 is connected to the torsion trip mechanism 42 and penetrates through and protrudes out of the cover 3, so as to drive the fastener to rotate.

In the present embodiment, when the cover 3 is rotated by the hand tool 7, not only the above advantages are obtained, but also the auxiliary assembly personnel can know the number of turns of the cover 3 by the position of the hand tool 7, so as to reliably assemble the cover 3 to the predetermined depth position, so that the produced torque transfer sleeve has a more precise assembly. For example, but not limited to, the hand tool 7 drives the cover 3 to rotate 5 circles, which represents the pre-pressing torque value corresponding to the torque adapter sleeve when leaving the factory at this time, and the assembler only needs to remember the number of rotation circles, which is helpful to simplify the assembly process and rapid teaching.

Preferably, the at least two recesses 33 are distributed on the outer end surface 31 at equal intervals and angles with the driving head 41 as a center, so that the hand tool 7 can be symmetrically inserted into the at least two recesses 33 to stably drive the cover 3 to rotate. In the present embodiment, the number of the at least two recesses 33 is four.

Preferably, the socket unit 1 further comprises at least one positioning mechanism 5, the positioning mechanism 5 comprises a through hole 51 and a positioning member 52, the through hole 51 radially penetrates through the working end 22 of the main body 2, and the positioning member 52 penetrates through the through hole 51 to abut against and position the cover 3, so that the torsion value and the internal structural configuration of the torsion adapter socket after leaving the factory, which are safe to be disengaged from the torsion, cannot be unexpectedly changed by users, thereby ensuring the production quality and reducing the disputes after sale. In the present embodiment, the number of the at least one positioning mechanism 5 is two, and the at least one positioning mechanism is symmetrically disposed with the driving head 41 as an axis to uniformly provide a positioning force to the cover 3.

Specifically, the torque tripping mechanism 42 includes an elastic component 43, a first engaging member 44 and a second engaging member 45, the first engaging member 44 is positioned in the accommodating chamber 23 and includes a first engaging portion 441, the second engaging member 45 is selectively rotatably accommodated in the accommodating chamber 23 relative to the first engaging member 44, the second engaging member 45 includes a second engaging portion 451 and is connected to the driving head 41 to form a same rotating relationship, the elastic component 43 is abutted between the cover 3 and the second engaging member 45, and the elastic component 43 forces the second engaging portion 451 to normally engage with the first engaging portion 441. In the embodiment, the driving head 41 and the second engaging member 45 are integrally formed, so as to reduce the number of components and simplify the assembly process.

More specifically, the first tooth portion 441 and the second tooth portion 451 are engaged before the torque generated by the driving head 41 tightening the fastener reaches the elastic force provided by the elastic element 43; on the contrary, when the torque force is greater than the elastic force, the first tooth-locking portion 441 and the second tooth-locking portion 451 generate a tooth jumping phenomenon, so that the second locking member 45 rotates relative to the first locking member 44 to ensure the structural integrity of the fastener.

It will be appreciated that structural damage to the fastener occurs largely when the user over-tightens, i.e., less likely to cause failure problems during the loosening of the fastener. Therefore, in the present embodiment, the first engaging portion 441 and the second engaging portion 451 are respectively of a one-way tooth structure, that is, the first engaging member 44 and the second engaging member 45 can selectively jump the teeth and rotate relatively only along a single direction (screwing), and the first engaging member 44 and the second engaging member 45 keep rotating in the same direction (unscrewing).

It should be noted that the elastic component 43 includes a plurality of connected disc springs 431, and the disc springs 431 are sleeved on the driving head 41; one of the disc springs 431 abuts against the second engaging member 45, and the other of the disc springs 431 abuts against the cover 3. The disc spring 431 is selected as the elastic component 43, so that the compression stroke can be greatly reduced and the whole load capacity can be improved, and the torque adapter sleeve has the advantages of reduced volume, light weight and improved safety. Moreover, the spring coefficient of the elastic component 43 can be changed rapidly through forward and backward assembly, which is beneficial to the rapid change of the setting of a producer. For example, when the plurality of disc springs 431 are arranged in an inverted stack, the compression stroke is proportional to the number of the plurality of disc springs 431, which is convenient for the designer to design the size and calculate the related data.

In particular, since the plurality of disc springs 431 have the above-mentioned characteristic of short compression stroke, the compression stroke thereof does not need to be excessively long to satisfy the requirements of daily life and general factories. Specifically, the elastic element 43 (the plurality of disc springs 431) is elastically abutted between an inner end surface 32 of the cover 3 and an elastic surface 452 of the second engaging member 45; in the axial direction 24 of the body 2, the distance between the inner end surface 32 and the abutting surface 452 is defined as a first dimension 61, the total thickness of the first latch 44 and the second latch 45 engaged with each other is defined as a second dimension 62, and the second dimension 62 is greater than the first dimension 61.

In the embodiment, the number of the disc springs 431 is four and the ratio of the first dimension 61 to the second dimension 62 is between 0.6 and 0.8 by using the reverse stacking. In the axial direction 24 of the body 2, the length of the body 2 is defined as a third dimension 63, and the ratio of the first dimension 61 to the third dimension 63 is between 0.15 and 0.4. In addition, a gap 46 is defined between an inner annular surface 432 of each of the disc springs 431 and an outer annular surface 411 of the driving head 41, and the distance of the gap 46 is between 0.4mm and 0.8mm to provide sufficient deformation allowance for each of the disc springs 431.

To sum up, the torque force adapting sleeve of the utility model has at least two concave parts in the cover body for the hand tool to insert and rotate, thereby effectively simplifying the assembly difficulty, easily teaching the assembly personnel, improving the assembly precision and the like; and moreover, the design of the disc-shaped spring can greatly reduce the volume, the weight and the like.

Claims

1. A torque adapter sleeve, comprising:

2. The torque adapter sleeve according to claim 1, wherein the torque tripping mechanism includes a resilient member, a first engaging member and a second engaging member, the first engaging member is positioned in the accommodating chamber and includes a first engaging portion, the second engaging member is selectively rotatably accommodated in the accommodating chamber relative to the first engaging member, the second engaging member includes a second engaging portion connected to the driving head to rotate together, the resilient member is resiliently urged between the cover and the second engaging member, and the resilient member urges the second engaging portion to normally engage with the first engaging portion.

3. The torque adapter sleeve according to claim 2, wherein the resilient member comprises a plurality of connected disc-shaped springs, the plurality of spring-shaped springs being sleeved on the driving head; one disk spring is abutted against the second clamping piece, and the other disk spring is abutted against the cover body.

4. The torque adapter sleeve according to claim 3, wherein the plurality of disc springs are in an inverted stacked configuration.

5. The torque adapter sleeve according to claim 3, wherein a gap is defined between an inner annular surface of each of the disc springs and an outer annular surface of the driver head, the gap being between 0.4mm and 0.8 mm.

6. The torque adapter sleeve according to claim 2, wherein the first engaging portion and the second engaging portion are respectively a one-way tooth structure, and the first engaging member and the second engaging member can selectively engage and rotate relative to each other only along a single direction.

7. The torque force adapter sleeve according to claim 1, wherein the sleeve unit further comprises at least one positioning mechanism, the positioning mechanism comprises a through hole and a positioning member, the through hole radially penetrates through the working end of the body, and the positioning member penetrates through the through hole to abut against and position the cover.

8. The torque adapter sleeve according to claim 2, wherein the resilient member is resiliently urged between an inner end surface of the cover and a resilient surface of the second latch member; in the axial direction of the body, the distance between the inner end surface and the abutting surface is defined as a first size, the integral thickness of the first clamping piece and the second clamping piece which are mutually meshed is defined as a second size, and the second size is larger than the first size.

9. The torque adapter sleeve according to any one of claims 1 to 8, wherein the at least two recesses are arranged on the outer end surface at equal angular intervals centered on the driving head.

10. The torque adapter sleeve according to claim 5, wherein the plurality of disc springs are in an inverted stacked configuration; the first clamping piece and the second clamping piece can only selectively jump teeth along a single direction and rotate relatively; the sleeve unit further comprises at least one positioning mechanism, the positioning mechanism comprises a through hole and a positioning piece, the through hole radially penetrates through the working end of the body, and the positioning piece penetrates through the through hole to abut against and position the cover body; the elastic component elastically abuts between an inner end face of the cover body and an elastic abutting face of the second clamping piece; in the axial direction of the body, the distance between the inner end surface and the abutting surface is defined as a first size, the integral thickness of the first clamping piece and the second clamping piece which are mutually meshed is defined as a second size, and the second size is larger than the first size; the at least two concave parts are distributed on the outer end surface at equal intervals by taking the driving head as a center; the number of the at least two recesses is four; the number of the plurality of disc-shaped springs is four; the number of the at least one positioning mechanism is two, and the positioning mechanisms are symmetrically arranged by taking the driving head as an axis; the ratio of the first dimension to the second dimension is between 0.6 and 0.8; the driving head and the second clamping piece are integrally formed; in the axial direction of the body, the length of the body is defined as a third dimension, and the ratio of the first dimension to the third dimension is between 0.15 and 0.4.