TWI740671B - Locking sleeve - Google Patents

Abstract

A locking sleeve includes an inner sleeve and an outer sleeve sleevedly disposed thereon. The outer sleeve has an outer body, a first end and a second end defined at two ends of the outer body respectively, an engagement space enclosed by the outer body, and a plurality of slots cutting into the outer body and extending from the second end to divide the outer body into a plurality of clamping portions with elasticity. Each clamping portion has an engagement unit formed on an edge thereof. During a locking operation, a head of a fastening unit is situated in the engagement space and the engagement units clamp and engage the head so that the fastening unit is quickly and firmly positioned to facilitate the following fastening operation, the locking sleeve is more convenient to use, and the preferable locking effect is attained

Description

Locking sleeve with auxiliary lock

The invention relates to a locking tool, especially a locking sleeve with auxiliary locking.

Check that with the development of industrial technology, locking elements such as bolts, nuts and screws are commonly used in the combined structure of various products, and locking sleeves are widely used in the assembly of locking elements with hexagonal heads. During disassembly and disassembly operations; however, the hexagonal heads of the locking elements have different dimensional tolerances, in order to fit the heads with different dimensional tolerances for locking, the locking sleeve is provided with a locking space for accommodating the head There is a large tolerance, so that the locking space cannot be closely positioned with the head, resulting in the locking process must be pressed against the locking element, otherwise it is prone to slipping, and the locking effect is not good. Occurred; Moreover, the locking sleeve is also limited to the use of locking elements with hexagonal heads, and it limits the scope of use of the locking sleeve.

Therefore, an industry has developed a magnetic locking sleeve. As shown in Figures 1 and 2, the locking sleeve 1 includes a locking rod 11, and a sleeve provided at one end of the locking rod 11 The main body 12, a magnetic member 13 arranged in the sleeve main body 12, and a protective member 14 made of soft material and covering the magnetic member 13; wherein the sleeve main body 12 has a cylindrical body 121, a hexagonal locking hole 122 formed in the sleeve body 12, and a mounting hole 123 communicating with the hexagonal locking hole 122 and capable of accommodating the magnetic attraction member 13; therefore, a hexagonal head When the locking element (not shown in the figure) of the part is locked together, the hexagonal locking hole 122 is covered on the head of the locking element, so that the head enters the locking space 122 and receives the For the magnetic positioning of the magnetic attraction member 13, the locking rod 11 drives the sleeve body 12 to rotate, so as to drive the locking element to perform the locking operation.

However, after actual use, it was found that, first of all, the conventional magnetic locking sleeve 1 can only slightly improve the locking problem of the hexagonal head of the locking element, but the applicability of the locking element of other head types is still Can not be improved; Moreover, although the magnetic member 13 can absorb the locking element, but the magnetic member 13 is in contact with the outside air in a large area for a long time, which easily accelerates the generation of oxidation phenomenon, resulting in the magnetic property It will continue to decay as the use time increases, thereby affecting the service life of the locking sleeve 1. In addition, the metal scraps generated during the locking process are likely to adhere to the magnetic member 13, thereby affecting the magnetic member 13 The magnetic adsorption effect of, and the subsequent use effect of the locking sleeve 1 is greatly affected, and it needs to be improved.

Therefore, the object of the present invention is to provide a locking sleeve with auxiliary locking, which can stably lock the locking elements of different head types, facilitate the rapid progress of subsequent locking operations, and improve the use of Convenience and stable locking effect.

Therefore, the locking sleeve with auxiliary locking of the present invention includes an inner cylinder, and an outer cylinder set on the inner cylinder; wherein the inner cylinder has an inner cylinder, and a A locking rod body extending outward; in addition, the outer cylinder has an outer cylinder, which is respectively formed at the latching end and the locking end of the two ends of the outer cylinder, and a locking space enclosed by the outer cylinder , And a plurality of slots opened on the outer cylinder and extending outward from the locking end, so that the outer cylinder forms a plurality of clamping jaws with elastic changes, and the end edge of each clamping jaw forms a catch Block; when the lock operation is performed, the locking space is used for the head of the locking element to accommodate and limit, and the locking blocks are firmly locked on the wall of the head, and the slots increase the outer cylinder The elasticity is required to quickly locate and firmly clamp the locking element, which not only effectively simplifies the subsequent lock cooperation industry, but also helps the rapid progress of the lock cooperation industry, while improving the convenience of use and achieving a stable lock Effect.

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

Referring to Figures 3 and 4, the first preferred embodiment of the locking sleeve 3 with auxiliary locking of the present invention, the locking sleeve 3 includes an inner tube 31, and a set of the inner tube 31 Outer and outer cylinder 32; wherein, the inner cylinder 31 has an inner cylinder body 311, and a locking rod body 312 extending outward from the inner cylinder body 311; and in this embodiment, the locking rod body 312 A first threaded section 313a is formed on the outer periphery, and a second threaded section 313b is formed on the inner periphery of the inner cylinder 311, so that the locking rod 312 and the inner cylinder 311 can pass through the first threaded section 313a and the The second threaded section 313b is locked and fixed. In addition, the inner cylinder 311 is formed with a chamber 314 for the locking rod 312 to extend; and the aforementioned outer cylinder 32 has an outer cylinder 321, and one is provided in the One end of the outer cylinder 321 and the latching end 322 for the inner cylinder 311 to extend and latch, one is provided at the other end of the outer cylinder 321 and opposite to the latching end 323 of the latching end 322, and the other is formed at The locking space 324 in the outer cylinder 321 and surrounded by the outer cylinder 321, and a plurality of slots 325 opened on the outer cylinder 321 and extending from the locking end 323 toward the latching end 322 , So that a plurality of clamping jaws 326 with elastic changes are formed on the outer cylinder 321, and a locking block 327 is formed on the edge of each clamping jaw 326, and in this embodiment, each locking block 327 has a An inclined surface 3271 protruding from the locking end 323 toward the locking space 324, and a positioning surface 3272 connected to the inclined surface 3271, and the connecting portion of the inclined surface 3271 and the positioning surface 3272 extends outward to define a datum Line R, the positioning surface 3272 and the reference line R are arranged at a first angle α, the inclined surface 3271 and the reference line R are arranged at a second angle β, and the first angle α of the positioning surface 3272 is greater than the inclined surface 3271 The second angle β.

3 and 5, when the locking sleeve 3 is assembled, first the locking rod 312 and the inner cylinder 311 are screwed by the first threaded section 313a and the second threaded section 313b. The inner cylinder 311 is extended from the latching end 322 of the outer cylinder 32 into the locking space 324, so that the outer cylinder 32 is sleeved on the outer periphery of the inner cylinder 311, and this embodiment In the example, the locking element 4 with the disc-shaped head 41 is used for locking. In order to match the shape of the head 41, the end edge of the inner cylinder 311 can be arranged in an arc shape to perform the locking of the locking element 4 During cooperation, first cover the locking end 323 on the head 41 of the locking element 4, so that the locking block 327 is in contact with the peripheral wall of the head 41, and a downward force is applied at this time to The outer cylinder 32 is squeezed toward the head 41, while the detent blocks 327 also squeeze the peripheral wall surface of the head 41. At this time, given that the locking element 4 has a slight elasticity, and the grooves 325 helps increase the elasticity of the outer cylinder 32, so that the head 41 smoothly enters the locking space 324 and is restricted by the end edge of the inner cylinder 311, and the latching blocks 327 are also locked Fixed on the peripheral wall surface of the head 41 to more stably fix the locking element 4, and then apply a rotating torsion to the locking rod 312, so that the outer cylinder 32 is driven to rotate by the rotating torsion. The locking mechanism of the locking element 4, therefore, the locking element 4 will not be damaged during the locking process, and the outer cylinder 32 will not be damaged during the process of being supported by the locking element 4. At the same time, the effect of stably fixing the locking element 4 is achieved, which effectively simplifies the subsequent lock cooperation industry, promotes the rapid progress of the subsequent lock cooperation industry, achieves a better locking effect, and increases the convenience of use.

Referring to FIG. 6, the second preferred embodiment of the present invention still includes the components described in the first embodiment, and its purpose and effect are the same as those of the first embodiment. For example, the inner cylinder 311 is provided with a locking element 315 protruding outwards at the end opposite to the end of the locking rod 312. In this embodiment, the locking element with a countersunk head 41 is provided. 4 is locked, and the head 41 is provided with a locking hole A. When the locking of the locking element 4 is performed, the locking end 323 is covered on the head 41 and squeezed downward to make The locking member 315 extends and engages in the locking hole A, and at the same time, the locking blocks 327 are also locked on the peripheral wall surface of the head 41, and cooperate with the end edge of the inner cylinder 311 to abut against the head 41 The top surface can help the subsequent lock cooperation industry to proceed quickly.

Referring to Figure 7, Figure 8 and Figure 9, the third preferred embodiment of the present invention still contains the components described in the first embodiment and its purpose and effect are the same as those of the first embodiment. To repeat, this embodiment is particularly in that: the end edge of the inner cylinder 311 is recessed inward to form an accommodating space 316, and the accommodating space 316 is surrounded by a plurality of peripheral walls 317, and in this embodiment The accommodating space 316 is arranged in a hexagonal shape surrounded by the peripheral walls 317, and is locked for the locking element 4 with a hexagonal head 41, and the head 41 is provided with a gasket B, so, When performing the locking operation, first cover the locking end 323 on the head 41, and apply a downward force, so that the head 41 enters the accommodating space 316 from the locking space 324 and receives it. The peripheral walls 317 are restricted in position, while the gasket B is also positioned in the locking space 324, and the peripheral edge of the gasket B is locked by the detent blocks 327, so as to target the locking element 4 of the hexagonal head 41 Perform the lock.

Referring to FIG. 10, the fourth preferred embodiment of the present invention still includes the components described in the third embodiment, and its purpose and effect are the same as those of the third embodiment. In particular, the accommodating space 316 is provided with a locking element 315 protruding outward from the inner cylinder 311, and in this embodiment, the locking element 4 with a hexagonal head 41 is used for locking. And the head 41 is provided with a locking hole A and a gasket B. When performing the locking operation of the locking element 4, the locking end 323 is covered with the head 41 and squeezed downward to make The head 41 enters the accommodating space 316 from the locking space 324 and is restricted by the peripheral walls 317. At the same time, the locking hole A is locked by the locking member 315, and the gasket B is also positioned at In the locking space 324, at the same time, the peripheral edge of the gasket B is pressed and fixed by the locking blocks 327, so as to fix the locking element 4 stably.

Referring to FIG. 11, the fifth preferred embodiment of the present invention still includes the components described in the first embodiment, and its purposes and effects are the same as those of the first embodiment, and will not be repeated here, but this embodiment For example, a bearing 33 is provided between the inner cylinder 31 and the outer cylinder 32, and the locking end 322 of the outer cylinder 32 is provided with a limit block 34 to limit and fix the bearing 33 between the outer cylinder 32 and the outer cylinder 32. Between the inner cylinder 31, when the locking element 4 is screwed into an object 5 and the locking end 323 of the outer cylinder 32 contacts the surface of the object 5, the bearing 33 is set on the inner cylinder 31 Between the outer cylinder 32 and the outer cylinder 32, so that when the locking rod 312 is driven to drive the inner cylinder 311 to rotate, the outer cylinder 32 can be unaffected and stabilized in position. Therefore, the outer cylinder 32 is locked The end 323 will not continue to wear the surface of the object 5 during the locking process, so as to prevent the surface of the object 5 from being worn out, and further improve the overall locking effect.

Summarizing the foregoing, the locking sleeve with auxiliary locking of the present invention is provided with the grooves in the outer cylinder to form the clamping jaws with elastic changes, and the end edge of each clamping jaw is formed with the catch Blocks, so as to securely clamp the locking elements of different head types by the locking blocks, which more effectively simplifies the subsequent lock cooperation industry, helps the subsequent lock cooperation industry to proceed quickly, and enhances the convenience of use, At the same time, a stable locking effect is achieved.

However, what has been described above is only to illustrate the preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention, that is, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the description of the invention. , Should still fall within the scope of the invention patent.

(Acquaintance) 1: Locking sleeve 11: Locking rod 12: Sleeve body 13: Magnetic parts 14: Protective parts 121: cylinder 122: lock hole 123: mounting hole (this invention) 3: Locking sleeve 31: inner cylinder 32: Outer cylinder 33: Bearing 34: limit block 311: inner cylinder 312: Locking rod 313a: The first thread segment 313b: second thread segment 314: Room 315: lock 316: accommodating space 317: Zhou Bi 321: Outer cylinder 322: Card Terminal 323: lock end 324: Locking Space 325: Grooving 326: Gripper 327: Snap Block 3271: Inclined surface 3272: Positioning surface α: first angle β: second angle R: Baseline 4: Locking components 41: head A: Lock hole B: Gasket 5: Object

Figure 1 is a perspective view of a conventional locking sleeve. Figure 2 is an end view of a conventional locking sleeve. Fig. 3 is an exploded perspective view of the first preferred embodiment of the present invention. Fig. 4 is an enlarged view of a partial component of Fig. 3. Fig. 5 is a schematic diagram of the operation of the first preferred embodiment. Fig. 6 is a schematic diagram of the operation of the second preferred embodiment of the present invention. Fig. 7 is an exploded perspective view of the third preferred embodiment of the present invention. Figure 8 is an end view of the third preferred embodiment. Fig. 9 is a schematic diagram of the operation of the third preferred embodiment. Fig. 10 is a schematic diagram of the operation of the fourth preferred embodiment of the present invention. Fig. 11 is a schematic diagram of the operation of the fifth preferred embodiment of the present invention.

3: Locking sleeve

31: inner cylinder

32: Outer cylinder

311: inner cylinder

312: Locking rod

313a: The first thread segment

313b: second thread segment

314: Room

321: Outer cylinder

322: Card Terminal

323: lock end

324: Locking Space

325: Grooving

326: Gripper

327: Snap Block

4: Locking components

41: head

Claims (10)

A locking sleeve with auxiliary locking, comprising an inner cylinder, and an outer cylinder set on the inner cylinder; wherein the inner cylinder has an inner cylinder, and an inner cylinder extending from one end of the inner cylinder to An externally extending locking rod; in addition, the outer cylinder has an outer cylinder, a latching end arranged at one end of the outer cylinder and interlocking with the inner cylinder, and one at the other end of the outer cylinder And opposite to the locking end of the latching end, a locking space surrounded by the outer cylinder, and a plurality of slots opened on the outer cylinder and extending from the locking end, so that the outer The cylinder body forms a plurality of clamping jaws with elastic changes, and the end edge of each clamping jaw is formed with a catch block to assist in clamping a locking element. The locking sleeve with auxiliary locking according to claim 1, wherein a first threaded section is formed on the outer periphery of the locking rod, and a second threaded section is formed on the inner periphery of the inner cylinder to The locking rod body and the inner cylinder body are locked and fixed through the first threaded section and the second threaded section. The locking sleeve with auxiliary locking according to claim 1, wherein the other end of the inner cylinder is provided with a locking member protruding outward. The locking sleeve with auxiliary locking according to claim 1, wherein the inner cylinder is formed with a chamber for the locking rod to extend, and a chamber for receiving the head of the locking element置空间. The locking sleeve with auxiliary locking according to claim 4, wherein the other end of the inner cylinder body is provided with a locking member protruding outward and arranged in the accommodating space. The locking sleeve with auxiliary locking according to claim 4, wherein the accommodating space is surrounded by a plurality of peripheral walls for accommodating the head of the locking element. The locking sleeve with auxiliary locking according to claim 1, wherein each of the locking blocks has an inclined surface protruding from the locking end toward the locking space. The locking sleeve with auxiliary locking according to claim 7, wherein each of the locking blocks has a positioning surface connected to the inclined surface, and the connection between the inclined surface and the positioning surface extends outward to define A reference line, the positioning surface and the reference line are arranged at a first angle, the inclined surface and the reference line are arranged at a second angle, and the first angle and the second angle are arranged at different inclination angles. The locking sleeve with auxiliary locking according to claim 1, wherein a bearing is provided between the inner cylinder and the outer cylinder, so that when the inner cylinder is linked by the locking rod, the outer cylinder does not Affected. According to claim 9 of the locking sleeve with auxiliary locking, wherein the locking end of the outer cylinder is provided with a limit block to limit and fix the bearing.

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