CN210118332U

CN210118332U - Anti-drop bolt

Info

Publication number: CN210118332U
Application number: CN201920753873.8U
Authority: CN
Inventors: 朱晓爽
Original assignee: Wenzhou Bolihao Industrial Co Ltd
Current assignee: Wenzhou Bolihao Industrial Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-02-28
Anticipated expiration: 2029-05-23

Abstract

The utility model discloses an anti-drop bolt, which relates to the technical field of fasteners, and the key points of the technical proposal thereof comprise an end part and a screw rod arranged on one side of the end part, wherein one end of the end part is provided with a chute, one side of the screw rod is fixed in the chute, the screw rod is provided with an anti-slip part in a sliding way, the upper end of the anti-slip part is positioned in the chute, the lower end of the anti-slip part penetrates out of the chute, and the lower side wall of the anti-slip part is provided with a rubber sheet; still movable sleeve is equipped with compression spring on the screw rod, compression spring is located between spout and the antiskid portion, the utility model discloses have and enable bolt more stable when fixed, can also play the effect of anticreep.

Description

Anti-drop bolt

Technical Field

The utility model relates to a technical field of fastener, more specifically say, it relates to an anticreep bolt.

Background

The bolt is a fastener which is very convenient to use and is usually matched with a nut to be used for fastening and connecting two parts with through holes. Bolts are widely used as fasteners in various industries, and generally, although the fastening function of bolts is regarded as important, the function of fastening bolts is not developed and utilized.

Chinese patent No. CN201786872U, granted in the prior art, discloses a bolt, the body of which is composed of a rod head and a rod body, the outer circumferential surface of the rod body is provided with a thread, the thread is a half thread, the half thread is arranged at the middle lower end of the rod body, the rod head is a pentagonal rod head, an axial pentagonal inner hole is arranged in the pentagonal rod head, the body is provided with a through hole communicated with the pentagonal inner hole, and the through hole is arranged along the axial direction of the body. The utility model discloses a bolt is when using with the spanner is supporting, and is difficult for skidding. In addition, the bolt of the utility model saves materials and has light weight.

However, when the anti-falling mechanism is not arranged on the body in actual use, if the body is in a bumpy and swaying environment for a long time, the body is easy to loosen and fall off, once the body falls off, the parts can not be fixed any more, so that the parts are separated, and the body falls off to bring certain potential safety hazards to the whole equipment.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model provides an anticreep bolt has and enables bolt more stable when fixed, can also play the effect of anticreep.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an anti-slip bolt comprises an end part and a screw rod arranged on one side of the end part, wherein one end of the end part is provided with a sliding groove, one side of the screw rod is fixed in the sliding groove, an anti-slip part is arranged on the screw rod in a sliding manner, the upper end of the anti-slip part is positioned in the sliding groove, the lower end of the anti-slip part penetrates out of the sliding groove, and a rubber sheet is arranged on the lower side wall of the anti-slip part; still the activity cover is equipped with compression spring on the screw rod, compression spring is located between spout and the antiskid portion.

Through adopting above-mentioned technical scheme, when fixing the part, along with the screw rod constantly move down the screwing up, the lower extreme of antiskid portion will with the surperficial butt of part, antiskid portion will constantly shift up along the spout afterwards, make compression spring by continuous compression, thereby compression spring will produce reverse elasticity and compress tightly the surface at the part with antiskid portion, the rethread sets up the sheetrubber and the part surface of antiskid portion lower extreme and supports tightly, the sheetrubber has increased the frictional force with the part surface, make the screw rod more stable when fixing the part, and support tightly the part surface through the sheetrubber and can also prevent droing of screw rod.

The utility model discloses further set up to: be formed with the spacing ring that circumference encircleed on the cell wall of spout, the spacing ring centers on around the antiskid portion, the annular has been seted up to the corresponding position department of antiskid portion, the spacing ring inserts on the annular, just the width of annular is greater than the width of spacing ring, the spacing ring is spacing in the spout with antiskid portion.

Through adopting above-mentioned technical scheme, because the width of annular is greater than the width of spacing ring to guaranteed that antiskid portion can slide smoothly in the spout, can play spacing effect to antiskid portion through the spacing ring simultaneously, avoid antiskid portion to drop from the spout.

The utility model discloses further set up to: the rubber sheet surrounds the lower end of the antiskid part, the side wall of the rubber sheet bends towards one side, and the bending direction of the rubber sheet is opposite to the screwing direction of the screw; the lateral wall of the ring groove is provided with a guide strip which is vertically placed, and the limiting ring is provided with a guide groove for inserting the guide strip.

By adopting the technical scheme, when the screw is screwed down, the anti-skid part can rotate along with the screw through the guide strip, and the rubber sheet cannot cause great obstruction to the screwing process when the rubber sheet is screwed down because the bending direction of the rubber sheet is opposite to the screwing direction of the screw; however, when the screw is screwed down, if the screw is in a vibration environment, one end of the rubber sheet abuts against the surface of the part and generates reverse resistance, so that the screw is limited to rotate in the loosening direction, and the screw is more stable and has an anti-falling effect.

The utility model discloses further set up to: the lower extreme of antiskid portion is seted up and is supplied the rubber piece male groove of stepping down, the one end setting of rubber piece is in the inslot of stepping down, the other end of rubber piece is followed the inslot of stepping down is worn out, just the middle section of rubber piece outwards extrudes and forms the arc surface.

Through adopting above-mentioned technical scheme, the sheet rubber will insert to the inslot of stepping down when screwing up the screw rod to make the lower extreme of antiskid portion when supporting tightly with the part surface, the lower lateral wall of antiskid portion can be more level and more smooth, can avoid the sheet rubber folding and lead to the damage when screwing up the screw rod in addition, can protect the sheet rubber through the groove of stepping down, and the arc surface that forms on the sheet rubber can support tightly with the part surface when the screw rod is screwed up.

The utility model discloses further set up to: the lower end of the compression spring is fixedly connected with a rotating sheet, the rotating sheet is movably sleeved on the screw rod, and the lower end of the rotating sheet is in contact with the upper end of the anti-skid part.

Through adopting above-mentioned technical scheme, when compression spring is compressed, can make the atress of antiskid portion more even through the rotor plate, can separate compression spring and antiskid portion through the rotor plate when rotating the screw rod moreover to the lower extreme that can avoid compression spring blocks antiskid portion, has guaranteed the normal rotation of antiskid portion.

The utility model discloses further set up to: the end part comprises a fixed block and a movable plate, the sliding groove is formed in one end of the fixed block, a straight groove is formed in the other end of the fixed block, the movable plate is hinged to one side of the fixed block, and a cross groove is formed in the upper end of the movable plate.

By adopting the technical scheme, when the screw is screwed, the screw is usually screwed by a screwdriver, the number of tool bits of the existing screwdriver is more than that of a straight line, and the movable plate is provided with the cross groove, so that when a user only carries the straight-line screwdriver, the screwdriver can be inserted into the straight-line groove on the fixed block to screw the screw by turning the movable plate out of the fixed block; thereby satisfying the screwdriver of different models and being more convenient to use.

The utility model discloses further set up to: the lower end of the movable plate is provided with a clamping plate, a slot for the clamping plate to insert is formed in the corresponding position of the fixed block, an opening communicated with the slot is further formed in the side wall of the fixed block, and the lower end of the clamping plate penetrates out of the opening.

Through adopting above-mentioned technical scheme, the fly leaf has realized the fixed connection with the fixed block through the cardboard, makes the more stable of fly leaf, and what need mention is the specific certain elasticity of cardboard, when needs separate fly leaf and fixed block, through pressing in the lower extreme of cardboard to the trompil, turns over the fly leaf round articulated department to the direction of keeping away from the fixed block again, can realize the separation of fly leaf and fixed block.

The utility model discloses further set up to: the side wall of the movable plate is provided with a lug protruding outwards, and the lug is positioned above the clamping plate.

Through adopting above-mentioned technical scheme, when separating fly leaf and fixed block, can improve the impetus for the user through the lug to can be more convenient turn over the fly leaf.

To sum up, the utility model discloses following beneficial effect has:

when fixing the part, along with the continuous screw down of screw rod is screwed up, the lower extreme of antiskid portion will with the surface butt of part, antiskid portion will constantly shift up along the spout afterwards, make compression spring by continuous compression, thereby compression spring will produce reverse elasticity and compress tightly the surface at the part with antiskid portion, the rethread sets up the sheet rubber and the part surface of antiskid portion lower extreme and support tightly, the sheet rubber has increased the frictional force with the part surface, make the screw rod when fixing the part more stable, because the crooked direction of sheet rubber is opposite with the direction that the screw rod was screwed up, the one end of sheet rubber will support tightly and produce reverse resistance in order to prevent droing of screw rod with the surface of part when the screw rod takes place to become flexible.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the fixing block according to the present invention;

FIG. 3 is a schematic view of the anti-slip part of the present invention showing its structure;

fig. 4 is an enlarged schematic view of a structure at a in fig. 3.

Reference numerals: 1. an end portion; 2. a screw; 3. a chute; 4. an anti-slip portion; 5. a compression spring; 6. a rubber sheet; 7. a limiting ring; 8. a ring groove; 9. a circular arc surface; 10. a fixed block; 11. a movable plate; 12. a straight slot; 13. a cross groove; 14. clamping a plate; 15. a bump; 16. opening a hole; 17. a rotating sheet; 18. a guide strip; 19. a guide groove; 20. a slot; 21. a yielding groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the anti-dropping bolt includes an end portion 1 and a screw rod 2 vertically disposed at a lower end of the end portion 1, wherein the end portion 1 includes a fixing block 10 and a movable plate 11 both having a cylindrical shape. The movable plate 11 is hinged to the upper end of the fixed block 10, the sliding groove 3 is formed in the lower end of the fixed block 10, and the upper end of the screw rod 2 is fixedly connected to the groove wall of the sliding groove 3.

As shown in fig. 1 and 2, a linear groove 12 for inserting a screwdriver is formed at an upper end of the fixing block 10, and the linear groove 12 is located at a central position of the fixing block 10. The side wall of the movable plate 11 departing from the linear groove 12 is provided with a cross groove 13, and the cross groove 13 is positioned right above the linear groove 12.

As shown in fig. 1 and 2, a flexible locking plate 14 is fixedly connected to a lower sidewall of the movable plate 11, and the locking plate 14 is perpendicular to the lower sidewall of the movable plate 11 and away from a hinge of the movable plate 11. One end of the fixing block 10 facing the card 14 is provided with a slot 20 for the card 14 to be inserted into, and the width of the slot 20 is greater than the maximum width of the card 14. An opening 16 communicated with the slot 20 is further formed in one side of the fixed block 10, the clamping plate 14 is inserted into the slot 20, and the lower end of the clamping plate 14 penetrates out of the opening 16. The movable plate 11 is fixedly connected with the fixed block 10 through the clamping plate 14. A protruding block 15 protruding outwards is integrally formed on the side wall of one end of the movable plate 11 away from the hinge joint, and the protruding block 15 is located above the clamping plate 14.

As shown in fig. 2 and 3, the screw 2 is provided with an anti-slip portion 4 at an upper end thereof in a slip manner, and an inner side wall of the anti-slip portion 4 is bonded to a side wall of the screw 2. The upper end of the antiskid part 4 is positioned in the sliding groove 3, and the lower end of the antiskid part 4 penetrates out of the sliding groove 3. Still fixed being provided with along the spacing ring 7 that the level was placed on the cell wall of spout 3, spacing ring 7 encircles around non-slip portion 4, and non-slip portion 4's middle section is seted up and is the annular 8 that circumference encircleed, and the width of annular 8 is greater than spacing ring 7's width, and spacing ring 7's inner ring inserts in annular 8, and non-slip portion 4 is spacing in spout 3 through spacing ring 7.

As shown in fig. 3, two vertically disposed guide bars 18 are fixedly connected to the wall of the ring groove 8, and the two guide bars 18 are respectively located at two ends of the ring groove 8. The corresponding position of the limiting ring 7 is provided with a guide groove 19 for inserting the guide strip 18, the side wall of the guide strip 18 is attached to the groove wall of the guide groove 19, and the guide strip 18 is slidably arranged in the guide groove 19.

As shown in fig. 2 and 3, the upper end of the screw rod 2 is movably sleeved with a compression spring 5 located between the chute 3 and the anti-skid portion 4, the lower end of the compression spring 5 is fixedly connected with a rotating sheet 17, and the lower side wall of the rotating sheet 17 is attached to the upper end of the anti-skid portion 4.

As shown in fig. 3 and 4, the lower side wall of the antiskid part 4 is provided with a yielding groove 21 circumferentially surrounding the screw rod 2, one end of the groove wall of the yielding groove 21 is fixedly connected with a rubber sheet 6, the side wall of the rubber sheet 6 is bent to one side, the middle section of the rubber sheet 6 protrudes in the direction away from the yielding groove 21 to form an arc surface 9, the bending direction of the rubber sheet 6 is opposite to the screwing direction of the screw rod 2, and the other end of the rubber sheet 6 penetrates out of the yielding groove 21.

The specific effects of the embodiment are as follows:

when fixing the part, along with the continuous shifting down of screw rod 2 screws up, the lower extreme of antiskid portion 4 will with the surface butt of part, antiskid portion 4 will be along spout 3 constantly shifts up afterwards, make compression spring 5 by continuous compression, compression spring 5 will produce reverse elasticity and compress tightly antiskid portion 4 on the surface of part, the rethread sets up rubber sheet 6 and the part surface of antiskid portion 4 lower extreme and supports tightly, rubber sheet 6 has increased the frictional force with the part surface, make screw rod 2 more stable when fixing the part, because the crooked direction of rubber sheet 6 is opposite with the direction that screw rod 2 screwed up, the one end of rubber sheet 6 will support tightly with the surface of part when screw rod 2 takes place to become flexible, and produce reverse resistance and prevent droing of screw rod 2.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an anticreep bolt, includes tip (1) and sets up screw rod (2) in tip (1) one side, characterized by: a sliding groove (3) is formed in one end of the end portion (1), one side of the screw rod (2) is fixed in the sliding groove (3), an anti-skidding portion (4) is arranged on the screw rod (2) in a sliding mode, the upper end of the anti-skidding portion (4) is located in the sliding groove (3), the lower end of the anti-skidding portion (4) penetrates out of the sliding groove (3), and a rubber sheet (6) is arranged on the lower side wall of the anti-skidding portion (4); still the activity cover is equipped with compression spring (5) on screw rod (2), compression spring (5) are located between spout (3) and antiskid portion (4).

2. The anti-drop bolt according to claim 1, characterized in that: be formed with spacing ring (7) that circumference encircleed on the cell wall of spout (3), spacing ring (7) are around antiskid portion (4), annular (8) have been seted up to the corresponding position department of antiskid portion (4), spacing ring (7) insert on annular (8), just the width of annular (8) is greater than the width of spacing ring (7), spacing ring (7) are with antiskid portion (4) spacing in spout (3).

3. The anti-drop bolt according to claim 2, characterized in that: the rubber sheet (6) is encircled at the lower end of the antiskid part (4), the side wall of the rubber sheet (6) is bent towards one side, and the bending direction of the rubber sheet (6) is opposite to the screwing direction of the screw (2); be provided with on the lateral wall of annular (8) along vertical guide bar (18) of placing, seted up on spacing ring (7) and supplied guide bar (18) male guide way (19).

4. The anti-drop bolt according to claim 3, characterized in that: the lower extreme of antiskid portion (4) is seted up and is supplied rubber piece (6) male groove of stepping down (21), the one end setting of rubber piece (6) is in groove of stepping down (21), the other end of rubber piece (6) is followed wear out in groove of stepping down (21), just the middle section outside of rubber piece (6) protrudes and forms arc surface (9).

5. The anti-drop bolt according to claim 1, characterized in that: the lower extreme fixedly connected with of compression spring (5) rotates piece (17), it establishes to rotate piece (17) activity the screw rod (2) is last, the lower extreme of rotating piece (17) with the upper end contact of antiskid portion (4).

6. The anti-drop bolt according to claim 1, characterized in that: tip (1) is including fixed block (10) and fly leaf (11), spout (3) are seted up the one end of fixed block (10), straight groove (12) have been seted up to the other end of fixed block (10), fly leaf (11) articulate in fixed block (10) one side, cross recess (13) have been seted up to the upper end of fly leaf (11).

7. The anti-drop bolt according to claim 6, characterized in that: the clamp plate is arranged at the lower end of the movable plate (11), a slot (20) for inserting the clamp plate (14) is formed in the corresponding position of the fixed block (10), an opening (16) communicated with the slot (20) is further formed in the side wall of the fixed block (10), and the lower end of the clamp plate (14) penetrates out of the opening (16).

8. The anti-drop bolt according to claim 7, characterized in that: the side wall of the movable plate (11) is provided with a lug (15) protruding outwards, and the lug (15) is positioned above the clamping plate (14).