CN210949490U

CN210949490U - Vertical bolt natural falling prevention mechanism

Info

Publication number: CN210949490U
Application number: CN201922012920.6U
Authority: CN
Inventors: 刘军华
Original assignee: CHONGQING HUAS CIVIL CONSTRUCTION TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: CHONGQING HUAS CIVIL CONSTRUCTION TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-07-07
Anticipated expiration: 2029-11-20

Abstract

The utility model relates to a mechanism for preventing vertical bolts from falling off naturally, which comprises a cover plate; one end of the cover plate is provided with a bayonet; an anti-falling groove is arranged in the bayonet; an anti-falling gasket is arranged in the anti-falling groove; a screw rod penetrates through the anti-falling gasket; one end of the screw is fixedly connected with a nut, and the other end of the screw is provided with a lantern ring; a pin shaft is arranged in the lantern ring; the nut is tightly pressed on the upper surface of the anti-falling gasket. Its advantages are: the utility model discloses a prevent that vertical bolt from droing mechanism naturally even the nut is not hard up, also can play the locking effect, and need not to dismantle, can become a neotype fixed establishment, has extensive application prospect to its popularization.

Description

Vertical bolt natural falling prevention mechanism

Technical Field

The utility model belongs to the technical field of vertical bolt locking mechanism technique and specifically relates to prevent that vertical bolt from dropping mechanism naturally.

Background

When devices or components such as motors and the like which are easy to vibrate need to be fixed, a bolt is a frequently-adopted mounting mechanism, and particularly when the devices or components are connected with a plate, a nut locking mechanism for fixing is often required to be screwed on the bolt. However, the nut can vibrate along with the high-frequency vibration generated during the operation of the motor, which can lead to the nut loosening and falling over time, resulting in failure of connection and fixation and easily causing the risk of falling of the device or the component.

Secondly, above-mentioned used nut locking mechanism is easily become flexible through the vibration nut and moves back and falls off, and the falling back of nut then causes dangerous accident or loss of property easily, if prevent that nut stopping mechanism from stopping the nut through some, can play fine effect of preventing the nut pine and moving back admittedly, but to the mechanism that often needs the dismantlement, then difficult when the nut is dismantled.

Chinese patent document CN201420549682.7, application date 20140924, with patent names: the utility model provides a can prevent the helicitic texture that the bolt drops, discloses a can prevent the helicitic texture that the bolt drops, including bolt body and nut body, set up the thread on the bolt body, the thread is for falling trapezoidal, the nut body is half nut structure, the internal and bolt body thread assorted internal thread of nut.

The thread structure capable of preventing the bolt from falling off in the patent literature adopts a unique inverted trapezoidal structure, so that the thread structure is good in locking shape, the defect that the bearing capacity is poor due to the fact that the occupied space is large even if the thread structure is used in a narrow space is overcome, the thread structure can be sufficiently applied to the narrow space needing the locking capacity, and the thread structure is worthy of popularization and application. However, a nut which is loosened can also play a role in locking, and a technical scheme which does not need to be disassembled is not disclosed correspondingly.

In summary, there is a need for a mechanism for preventing vertical bolts from falling off naturally, which can lock the nuts even if the nuts are loosened and does not need to be disassembled. However, no report is found about the mechanism for preventing the vertical bolt from falling off naturally at present.

Disclosure of Invention

The utility model aims at providing a even the nut is not hard up, also can play the locking effect, and need not the vertical bolt of preventing of dismantlement and drop the mechanism naturally.

In order to achieve the purpose, the utility model adopts the technical proposal that:

the vertical bolt natural falling prevention machine comprises a vertical bolt natural falling prevention mechanism and a vertical bolt natural falling prevention mechanism, wherein the vertical bolt natural falling prevention mechanism comprises a cover plate; one end of the cover plate is provided with a bayonet; an anti-falling groove is arranged in the bayonet; an anti-falling gasket is arranged in the anti-falling groove; a screw rod penetrates through the anti-falling gasket; one end of the screw is fixedly connected with a nut, and the other end of the screw is provided with a lantern ring; a pin shaft is arranged in the lantern ring; the nut is tightly pressed on the upper surface of the anti-falling gasket.

As a preferable technical scheme, the bayonet penetrates through the cover plate in the thickness direction of the cover plate; the bayonet is U-shaped.

As a preferred technical scheme, the anti-dropping groove is arc-shaped; the depth of the anti-falling groove is lower than the thickness of the cover plate.

As a preferred technical scheme, the pin shafts and the screw rods are vertically distributed.

As a preferred technical scheme, an interference fit mode is adopted between the lantern ring and the pin shaft.

As a preferable technical scheme, in the installation state of the anti-drop gasket, the thickness of the anti-drop gasket is smaller than the depth of the anti-drop groove; and a gap is formed between the anti-falling gasket and the inner wall of the anti-falling groove.

As a preferable technical solution, when the nut is in an installation state, a gap is formed between the outer diameter of the nut and the inner wall of the anti-drop groove, and the axial direction of the nut protrudes outwards relative to the anti-drop groove.

As a preferable technical scheme, the inner diameter dimension of the anti-drop gasket is larger than the inner diameter dimension of the nut.

The utility model has the advantages that:

1. the utility model discloses a prevent vertical bolt mechanism that drops naturally: when the nut loosens, because under the effect of gravity, the anticreep gasket can keep in the sunken anticreep recess of bayonet socket face, and in time the nut becomes flexible the screw rod also can not break away from the bayonet socket on the contrary, need not to dismantle to the effect that prevents the bolt and drop naturally has been reached.

2. The bayonet penetrates through the cover plate in the thickness direction of the cover plate; the bayonet is U-shaped. Wherein, the bayonet socket runs through the design, and the fixed apron of screw rod run-through formula of being convenient for, fixed effect is exact. The bayonet is designed into a U shape, so that the bayonet is designed in an open mode, and the cover plate is convenient to mount.

3. The round pin axle is exactly that the connecting screw rod was used, and the screw rod is around round pin axle pivoted, and in the time of the practical use, the screw rod is longer, and the nut is difficult to drop like this, when the apron is opened to needs, need not rotate the nut completely and retreat and just the accessible rotates the screw rod, makes the bolt break away from the bayonet socket of apron, and the apron just can be opened, and the nut still is on the bolt, and the nut is difficult for losing.

4. The upper surface of apron is used for installing the motor, through design the bayonet socket on the apron to set up the anticreep recess in the bayonet socket, parts such as installation anticreep gasket form whole anti-drop mechanism in the anticreep recess, and final purpose realizes locking the apron, and the vibration in-process like this, even the nut has become flexible, the anticreep gasket can keep in the anticreep recess always because of the action of gravity, and the apron can not pop out, and the screw rod can not pop out yet, when the artificial discovery, with the nut screw up fixed can.

Drawings

Fig. 1 is a schematic structural view of the mechanism for preventing the vertical bolt from falling off naturally.

FIG. 2 is a schematic view of a cover plate structure

FIG. 3 is an assembly view of the pin and screw connection.

FIG. 4 is a schematic view of the connection structure of the anti-slip washer and the nut.

Detailed Description

The invention will be further described with reference to the following examples and with reference to the accompanying drawings.

The reference numerals and components referred to in the drawings are as follows:

1. cover plate 2. bayonet

3. Anti-drop groove 4, anti-drop gasket

5. Screw 6. nut

7. Lantern ring 8. pin shaft

Referring to fig. 1, fig. 1 is a schematic structural view of a mechanism for preventing a vertical bolt from falling off naturally according to the present invention. The vertical bolt natural falling prevention mechanism comprises a cover plate 1; one end of the cover plate 1 is provided with a bayonet 2; an anti-falling groove 3 is arranged in the bayonet 2; an anti-falling gasket 4 is arranged in the anti-falling groove 3; a screw rod 5 penetrates through the anti-falling gasket 4; one end of the screw rod 5 is fixedly connected with a nut 6, and the other end of the screw rod is provided with a lantern ring 7; a pin shaft 8 is arranged in the lantern ring 7; the nut 6 is pressed on the upper surface of the anti-dropping gasket 4.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the cover plate 1. The bayonet 2 is of an open-type structure; the bayonet 2 penetrates through the cover plate 1 in the thickness direction of the cover plate 1; the bayonet 2 is U-shaped; the anti-falling groove 3 is arc-shaped; the depth of the anti-falling groove 3 is lower than the thickness of the cover plate 1.

Referring to fig. 3, fig. 3 is an assembly view of the pin 8 and the screw 5. The pin shaft 8 is vertically distributed with the screw 5; and the lantern ring 7 and the pin shaft 8 are in interference fit.

Referring to fig. 4, fig. 4 is a schematic structural view of the connection between the anti-slip washer 4 and the nut 6. The inner diameter dimension of the anti-drop gasket 4 is larger than that of the nut 6.

The embodiment needs to be explained as follows:

the vertical bolt natural falling prevention mechanism comprises a cover plate 1; one end of the cover plate 1 is provided with a bayonet 2; an anti-falling groove 3 is arranged in the bayonet 2; an anti-falling gasket 4 is arranged in the anti-falling groove 3; a screw rod 5 penetrates through the anti-falling gasket 4; one end of the screw rod 5 is fixedly connected with a nut 6, and the other end of the screw rod is provided with a lantern ring 7; a pin shaft 8 is arranged in the lantern ring 7; the nut 6 is pressed on the upper surface of the anti-dropping gasket 4. The effect of this design is: when nut 6 pine takes off, owing to anticreep gasket 4 can keep in 2 sunken anticreep recesses 3 of face of bayonet socket under the effect of gravity, in time nut 6 not hard up screw rod 5 also can not break away from bayonet socket 2 on the contrary, need not to dismantle to the effect that prevents the bolt and drop naturally has been reached.

Apron 1's upper surface be used for installing the motor, through design bayonet socket 2 on apron 1, and set up anticreep recess 3 in bayonet socket 2, parts such as installation anticreep gasket 4 form whole anti-drop mechanism in anticreep recess 3, final purpose is the realization is with apron 1 locking, vibrate the in-process like this, even nut 6 is not hard up, anticreep gasket 4 can keep in anticreep recess 3 always because of the action of gravity, apron 1 can not pop out, screw rod 5 can not pop out yet, until when the artificial discovery nut 6 is not hard up, it can fixedly to screw up nut 6.

The bayonet 2 penetrates through the cover plate 1 in the thickness direction of the cover plate 1; the bayonet 2 is U-shaped. Wherein, bayonet socket 2 runs through the design, and the fixed apron 1 of the screw rod 5 formula of running through of being convenient for, fixed effect is exact. The bayonet 2 is designed into a U shape, and the bayonet 2 is designed in an open mode, so that the cover plate 1 is convenient to mount;

the anti-falling groove 3 is arc-shaped; the depth of the anti-falling groove 3 is lower than the thickness of the cover plate 1. The anti-falling groove 3 is designed into an arc shape, so that the anti-falling groove is convenient to be matched with the anti-falling gasket 4; the depth of the anti-drop groove 3 is lower than the thickness of the cover plate 1. Providing an installation space for the anti-drop spacer 4.

The round pin axle 8 just connect the screw rod 5 usefulness, the screw rod 5 is around round pin axle 8 pivoted, and in the time of practical use, the screw rod 5 is than longer, and the nut 6 is difficult to drop like this, when the apron 1 need be opened, need not go back nut 6 complete rotation and finish just the rotatory screw rod 5 of accessible, make the bolt break away from the bayonet socket 2 of apron 1, apron 1 just can be opened, nut 6 is still on the bolt, and nut 6 is difficult for losing.

The pin shaft 8 is vertically distributed with the screw rod 5. Through 8 rotations on round pin axle, can control screw rod 5 and rotate to realize taking place relative slip between accuse screw rod 5 and the nut 6, the nut 6 locking of being convenient for or relaxing, convenient operation need not swivel nut 6, makes relative slip between nut 6 and the screw rod 5, realizes nut 6 and locks.

The lantern ring 7 and the pin shaft 8 are in interference fit. The design enables the screw rod 5 to rotate around the pin shaft 8, and the two rotate synchronously.

In the installation state of the anti-drop gasket 4, the thickness of the anti-drop gasket 4 is smaller than the depth of the anti-drop groove 3; and a gap is reserved between the anti-falling gasket 4 and the inner wall of the anti-falling groove 3. The effect of this design is: for anticreep gasket 4 provides activity space, the installation of the anticreep gasket 4 of being convenient for ensures that anticreep gasket 4 can laminate in anticreep recess 3 under the action of gravity.

When the nut 6 is in an installation state, a gap is formed between the outer diameter of the nut 6 and the inner wall of the anti-falling groove 3, and the axial direction of the nut 6 protrudes outwards relative to the anti-falling groove 3. The effect of this design is: so that the nut 6 compresses the cover plate 1 through compressing the anti-falling gasket 4 and the anti-falling gasket 4, thereby realizing the locking of the cover plate 1. If the nut 6 is directly pressed against the upper surface of the cover plate 1, a gap is formed between the nut 6 and the separation preventing washer 4, and the separation preventing washer 4 loses the reverse acting force to increase the engaging force between the nut 6 and the screw 5, which easily causes the nut 6 to be separated.

The inner diameter dimension of the anti-drop gasket 4 is larger than that of the nut 6. The effect of this design is: make the cooperation between anticreep gasket 4 and the screw rod 5 can form clearance fit, when nut 6 is not hard up, nut 6 can not arouse anticreep gasket 4 outwards to slide together, ensures that anticreep gasket 4 can laminate in anticreep recess 3 always.

The utility model discloses a prevent that vertical bolt from coming off mechanism naturally even nut 6 is not hard up, also can play the locking effect, and need not to dismantle, can become a neotype fixed establishment, has extensive application prospect to its popularization.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. The mechanism for preventing the vertical bolt from falling off naturally is characterized by comprising a cover plate; one end of the cover plate is provided with a bayonet; an anti-falling groove is arranged in the bayonet; an anti-falling gasket is arranged in the anti-falling groove; a screw rod penetrates through the anti-falling gasket; one end of the screw is fixedly connected with a nut, and the other end of the screw is provided with a lantern ring; a pin shaft is arranged in the lantern ring; the nut is tightly pressed on the upper surface of the anti-falling gasket.

2. The mechanism for preventing the vertical bolt from naturally falling off as claimed in claim 1, wherein the bayonet penetrates through the cover plate in the thickness direction of the cover plate; the bayonet is U-shaped.

3. The mechanism for preventing the vertical bolt from naturally falling off as claimed in claim 1, wherein the anti-falling groove is arc-shaped; the depth of the anti-falling groove is lower than the thickness of the cover plate.

4. The mechanism of claim 1, wherein the pin is perpendicular to the screw.

5. The mechanism of claim 1, wherein the collar and the pin are in interference fit with each other.

6. The mechanism of claim 1, wherein the thickness of the anti-drop gasket is smaller than the depth of the anti-drop groove when the anti-drop gasket is in the installation state; and a gap is formed between the anti-falling gasket and the inner wall of the anti-falling groove.

7. The mechanism of claim 1, wherein the nut is mounted with a gap between the outer diameter of the nut and the inner wall of the anti-slip groove, and the nut axially protrudes outward relative to the anti-slip groove.

8. The mechanism of claim 1, wherein the anti-drop gasket has an inner diameter greater than that of the nut.