WO2013097180A1

WO2013097180A1 - Anti-loosening sleeve connected to bolt with no pre-tightening force

Info

Publication number: WO2013097180A1
Application number: PCT/CN2011/085033
Authority: WO
Inventors: 袁玉君
Original assignee: Yuan Yujun
Priority date: 2011-12-27
Filing date: 2011-12-30
Publication date: 2013-07-04
Also published as: CN102518636B; CN102518636A

Abstract

Disclosed is an anti-loosening sleeve (1) with no pre-tightening force, comprising a bolt body (2) with a hole (2.1) and an elastic anti-loosening sleeve (1) sheathed on the end of the bolt body, wherein an elastic strip (1.1) is provided on the anti-loosening sleeve, a boss (1.1A) is provided on the elastic strip, and the boss and the hole on the bolt body cooperate such that when the boss is inserted in the hole, the anti-loosening sleeve is fixed and when the boss and the hole are dislocated, the anti-loosening sleeve can be removed from the bolt body.

Description

Anti-detachment sleeve for non-preloading bolt connection

Technical field

The invention relates to a mechanical connection anti-loose device, in particular to a anti-detachment sleeve which is connected by a non-preload force bolt.

Background technique

In the daily living or production facilities, there are a large number of mechanical connections, including some bolting connections. The most common threaded bolt connection is called bolt connection, and there are some non-threaded bolt connections, such as door bolts in everyday hardware. At present, there are many methods for bolting and loosening, which are introduced in the Mechanical Design Manual (5th Edition), Volume 2, Chapter 5, Chapter 1, Section 3.3.2 "Commonly Used Methods for Locking Thread Connections". The loose method mainly includes: spring washer, wave elastic washer, tapered lock washer, double nut, nylon ring lock nut, sturdy nut, bolt rod with hole and slotted nut with split pin, stop ring, wire string Pick up. In these anti-loose methods, in addition to the bolted rod hole and the slotted nut with the split pin can be used for the anti-tightening of the non-preloaded threaded connection, other anti-loose methods require the threaded connection to be in a pre-tightening state. . However, in daily work, there are often bolted or unthreaded bolt connections that are not preloaded. For example, the hooks of the hoist and the U-shaped tongs used in the slab-type single slings of the building exterior (curtain) cleaning work are all non-preloaded threaded connections. Therefore, the anti-loose problem of non-preloaded bolted joints is very common. Among the currently known techniques, there are few anti-loosening methods suitable for non-preloading connections, and currently only the bolt rod with holes and the slotted nut with the split pin can be applied. However, the loosening operation of the bolted rod with the hole and the slotted nut with the split pin requires the use of an operating tool such as a wrench or a pliers, which is difficult to accomplish by hand. The anti-loose operation of the tool is inconvenient for use and also affects the work efficiency.

Summary of the invention

In order to solve the current anti-loose operation of the non-preloaded threaded connection, it is necessary to use a tool to complete, bring great inconvenience to the use, and affect the work efficiency. The invention provides a non-pre-tightening anti-detachment sleeve, comprising an elastic anti-detachment sleeve sleeved at the end of the plug body, and a protrusion corresponding to the concave hole on the plug body is arranged on the anti-detachment sleeve, which can pass The operation is freed to achieve alignment or misalignment between the projections and the recessed holes, thereby completing the anti-loosening operation.

The present invention solves the problem by adopting the following technical solution: a non-preloading bolt-connected anti-detachment sleeve, characterized in that it comprises a plug body with a concave hole and an elastic anti-drop sleeve sleeved at the end of the plug body, An elastic piece is disposed on the detaching sleeve, and a protrusion is disposed on the elastic piece, the protrusion is matched with a concave hole on the plug body, and the protrusion is fixed when the protrusion is placed in the concave hole, The anti-lift sleeve can be removed from the plug when the projection is misaligned with the recess.

According to a preferred embodiment of the present invention, the elastic piece is provided with a first protrusion, the first protrusion is directed toward the inner side, and the detachment sleeve is sleeved from the outside to the end of the plug body.

According to a preferred embodiment of the present invention, the end of the plug body further has an inner hole, and the elastic piece is provided with a first protrusion, the first protrusion is facing outward, and the anti-detachment sleeve is sleeved from the inside to the end of the plug body. In the hole. According to a preferred embodiment of the present invention, an auxiliary sleeve is further disposed on the anti-detachment sleeve.

According to a preferred embodiment of the present invention, the auxiliary sleeve is sleeved from the outside on the detachment sleeve.

According to a preferred embodiment of the present invention, the auxiliary sleeve is sleeved from the inside to the detachment sleeve.

According to a preferred embodiment of the present invention, the auxiliary sleeve is further provided with an anti-slip pattern for operation.

In a preferred embodiment of the present invention, the auxiliary sleeve is further provided with a first groove corresponding to the elastic sleeve of the detachment sleeve, and when the detachment sleeve needs to be inserted into or removed from the plug body, the The first groove is aligned with the elastic piece, so that the elastic piece is flared outward and accommodated in the first groove; when the anti-detachment lock is required to be fastened, the auxiliary sleeve needs to be rotated by an angle to make the first groove The groove and the elastic piece are misaligned, and the elastic piece cannot be opened outward to prevent the anti-detachment sleeve from being loosened.

According to a preferred embodiment of the present invention, a second protrusion that is engaged with the auxiliary sleeve is further disposed on the anti-detachment sleeve, and a second groove corresponding to the second protrusion of the anti-detachment sleeve is further disposed on the auxiliary sleeve. a slot, the second protrusion is engaged with the second groove, and the auxiliary sleeve and the sleeve are mutually sleeved, and can be rotated without loosening between each other; by rotating the auxiliary sleeve, the auxiliary sleeve is made The first groove is aligned or misaligned with the elastic piece to realize the removal or locking of the detachment preventing sleeve.

The invention has the following beneficial effects: The present invention provides a non-pre-tightening anti-detachment sleeve, comprising an elastic anti-detachment sleeve sleeved at the end of the plug body, and disposed on the anti-detachment sleeve and the concave hole on the plug body The matching protrusion can be aligned or misaligned between the protrusion and the concave hole by hand-free operation, and the anti-loosening operation is completed, the anti-loose effect is reliable, and the operation is convenient.

DRAWINGS

1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are a schematic structural view and a use effect diagram of the first embodiment of the present invention, wherein FIG. 1 to FIG. 4 are schematic structural views, FIG. 5 to FIG. 7 is a schematic diagram of the effect of use.

Figure 8 is a schematic view showing the structure of a second embodiment of the present invention.

9, Fig. 10, Fig. 11, and Fig. 12 are schematic views showing the structure of a third embodiment of the present invention.

Figure 13, Figure 14, Figure 15 is a schematic view showing the structure of a fourth embodiment of the present invention.

Figure 16 is a schematic view showing the structure of a fifth embodiment of the present invention.

17, 18 and 19 are schematic views showing the structure of a sixth embodiment of the present invention.

In the figure, 1 anti-offset, 1. 1 elastic piece, 1. 1A first protrusion, 1. 1B second protrusion, 1. 1A1 inclined surface, 2 plug body, 2. 1 concave hole, 2. 2 inside Hole, 3 anti-drop parts, 4. 1, 4. 2, 4. 3 auxiliary sets, 4. 1A, 4. 2A, 4. 3A first groove, 4. 1B, 4. 2B, 4. 3B second Groove, 4. 2C anti-slip pattern.

detailed description

1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are schematic structural views and use effect diagrams of the first embodiment of the present invention, wherein FIG. 1 to FIG. 4 are schematic structural views, in order to make the display more 5, FIG. 3 is a schematic diagram of the combined structure of the elastic piece 1.1, and FIG. A view after an angle; Figures 5 to 7 are schematic views of the effect of use. 1 to 4, in this embodiment, a plug body 2 having a recessed hole 2.1 and an elastic retaining sleeve 1 sleeved at the end of the plug body are provided, and an elastic piece 1 is disposed on the retaining sleeve 1 1A, the first protrusion 1. 1A is disposed on the inner side, and the detachment sleeve is sleeved from the outside to the end of the plug body, the first protrusion 1A is matched with the recessed hole 2.1 of the plug body 2; when the first protrusion 1.1 is placed in the recessed hole 2.1, the retaining sleeve 1 is fixed; When the first protrusion 1. 1A and the recessed hole 2.1 are misaligned, the detachment preventing sleeve 1 can be removed from the plug body 2.

5 to 7 are schematic views showing the use effect of the first embodiment of the present invention. Figure 5 shows that, in order to prevent the detachment preventing member 3 from being detached from the plug body 2, the detachment preventing sleeve 1 is fitted into the plug body 2 from the end of the plug body 2; as shown in Fig. 6, after the detachment preventing sleeve 1 is inserted into the plug body 2, The first protrusion 1. 1A is placed in the concave body when the first protrusion 1. 1A is placed in the body 2 when the first protrusion 1. 1A is placed outwardly. In the hole 2.1, the detachment prevention sleeve 1 will be fixed. The anti-detachment sleeve 1 is sleeved at the end of the plug body 2, and because of its own elasticity, the anti-detachment sleeve 1 has a tight clamping force on the plug body 2; when the anti-detachment sleeve needs to be removed, only the anti-off sleeve is required to be rotated to make the elastic piece 1. 1 outwardly open, and make the first protrusion 1. 1A away from the concave hole book

2. The anti-detachment sleeve can be removed from the plug.

Figure 8 is a schematic view showing the structure of a second embodiment of the present invention. The first projection 1. 1A has an inclined surface 1. 1A1, the inclined surface 1. 1A1 enables the anti-detachment sleeve 1 to be inserted into the plug body. At 2 o'clock, the elastic piece 1.1 is automatically opened to facilitate the insertion of the anti-offset 1 .

Figure 10, Figure 10, Figure 11, Figure 12 is a schematic view of the structure of the third embodiment of the present invention, wherein, Figure 9 and Figure 10 are schematic views of the structure, in order to make the display clearer, Figure 10 is a schematic view showing the structure of the elastic piece 1.1. Partial view, Figure 11, Figure 12 is a schematic diagram of the effect of use. The figure shows that, unlike the first embodiment, in the present embodiment, the first projections 1 1A on the elastic sheet 1.1 of the detachment prevention sleeve 1 are oriented outward. 2, The first protrusion 1. 1A is placed in the recess of the plug body, when the first protrusion 1. 1A is placed in the inner hole of the plug body 2. 2. In the middle of the 1st, the detachment prevention sleeve 1 will be fixed.

Figure 13, Figure 14, and Figure 15 are schematic views of the structure of a fourth embodiment of the present invention. 1。 The auxiliary sleeve 4. 1 is sleeved from the outside on the retaining sleeve 1 . The first groove corresponding to the elastic piece 1.1 of the anti-detachment sleeve 1 is further provided on the detachment sleeve 1 is further provided with a second protrusion 1. 1B; The aligning of the elastic sheet 1.1, the elastic sheet 1.1 can be outwardly arranged, and the first piece of the elastic sheet 1.1 is aligned with the elastic sheet 1.1. Opened and accommodated in the first groove 4. 1A; when it is necessary to lock the retaining sleeve 1 lock timing, the first protrusion 1.1.1A facing the inner side is placed at the position of the recess on the plug body and will be assisted When the first groove 4.1A and the elastic piece 1.1 are misaligned, the elastic piece 1.1 cannot be opened outward, and the anti-detachment sleeve 1 is locked on the plug body; , the second corresponding to the second protrusion 1. 1B of the anti-detachment sleeve is further provided on the auxiliary sleeve 4.1. 2B, the second protrusion 1. 1B is engaged with the second groove 4. 1B, the auxiliary sleeve 4.1 and the anti-detachment sleeve 1 are mutually nested, and can be mutually connected The first part of the auxiliary sleeve is made by rotating the auxiliary sleeve 4. 4. 1A groove with the resilient plate 1.1 to achieve alignment or misaligned, removal implement retaining or locking sleeve 1. Figure 2 is a schematic view of the second embodiment of the present invention, in the embodiment of the present invention, the auxiliary sleeve 4.2 is also provided with a manually operated anti-slip pattern 4. 2C.

17, 18 and 19 are schematic views showing the structure of a sixth embodiment of the present invention. Different from the fourth embodiment, in the present embodiment, the auxiliary sleeve 4.3 is sleeved from the inside to the detachment preventing sleeve 1. The first groove 4 corresponding to the elastic sheet 1.1 is further provided on the auxiliary sleeve 3.4. 3A, the elastic sheet 1.1 can be opened inwardly, the first groove 4. 3A should be aligned with the elastic piece 1.1, the elastic piece 1.1 can be opened inward. And in the first groove 4. 3A; when it is necessary to lock the retaining sleeve 1 lock timing, the first protrusion 1.11 facing the outer side is placed at the position of the recess on the plug body and the auxiliary sleeve 4 3, The first groove 4. 3A and the elastic piece 1.1 are misaligned, the elastic piece 1.1 can not be opened inward, the anti-detachment sleeve 1 is locked on the plug body; The first corresponding to the second protrusion 1. 1B of the anti-detachment sleeve 1 is further provided on the auxiliary sleeve 4.3. 2B, the second groove 1. 3B is engaged with the second groove 4. 3B, the auxiliary sleeve 4.3 and the anti-detachment sleeve 1 are mutually nested, and can be mutually connected Achieve rotation without loosening; assisted by rotation 4.3 the first auxiliary sleeve groove 4. 2A 4.3 to 1.1 with the resilient piece alignment or misalignment implemented, achieve removal or retaining the locking sleeve 1.

Claims

Claim

A retaining sleeve for non-preloading bolt connection, characterized in that it comprises a plug body with a hole and an elastic anti-detachment sleeve sleeved at the end of the plug body, and an elastic piece is arranged on the anti-detachment sleeve Providing a protrusion on the elastic piece, the protrusion is matched with a concave hole on the plug body, and the protrusion is fixed when the protrusion is placed in the concave hole, the protrusion and the concave hole The detachment sleeve can be removed from the plug when it is misaligned.

2 . The anti-detachment sleeve of the non-preloading bolt according to claim 1 , wherein the elastic piece is provided with a first protrusion, and the first protrusion disposed on the elastic piece faces inward; The detachment sleeve is sleeved from the outside at the end of the plug.

The anti-detachment sleeve of the non-preloaded bolt connection according to claim 1, wherein the end of the plug body further has an inner hole, and the elastic piece is provided with a first protrusion, the first protrusion Starting outward, the detachment sleeve is sleeved from the inside into the inner bore of the end of the plug.

4. The anti-detachment sleeve of the non-preloaded force bolt according to claim 3, wherein the anti-detachment sleeve is further provided with an auxiliary sleeve.

5. The detachment preventing sleeve of the non-preloaded bolt according to claim 3, wherein the auxiliary sleeve is sleeved from the outside on the detachment sleeve.

The anti-detachment sleeve of the non-preloaded bolt connection according to claim 1, wherein the inner sleeve of the auxiliary sleeve is sleeved on the sleeve.

7. The non-preloading bolt connection preventing sleeve according to claim 1, wherein the auxiliary sleeve is provided with a manually operated anti-slip pattern.

The non-preloading bolt connection preventing sleeve according to claim 1, wherein the auxiliary sleeve is further provided with a first groove corresponding to the anti-detachment sleeve elastic piece, when needed When the detachment sleeve is inserted into or removed from the plug body, the first groove should be aligned with the elastic piece, and the elastic piece should be flared outward and accommodated in the first groove; when the detachment sleeve needs to be locked When fixing, the auxiliary sleeve needs to be rotated by an angle, so that the first groove and the elastic piece are misaligned, and the elastic piece cannot be flared outward, thereby preventing the anti-detachment sleeve from being loosened.

9 . The non-preloading bolt connection preventing sleeve according to claim 1 , wherein the retaining sleeve is further provided with a second protrusion that engages with the auxiliary sleeve, on the auxiliary sleeve. a second groove corresponding to the second protrusion of the detachment sleeve is further disposed, the second protrusion is engaged with the second groove, and the auxiliary sleeve and the detachment sleeve are mutually sleeved and mutually The rotation can be achieved without loosening; by rotating the auxiliary sleeve, the first groove of the auxiliary sleeve is aligned or misaligned with the elastic piece, thereby realizing the removal or locking of the sleeve.