CN221170296U

CN221170296U - Polyurethane stop bolt

Info

Publication number: CN221170296U
Application number: CN202322951206.XU
Authority: CN
Inventors: 郭林锋
Original assignee: Dongguan Zhengchen Hardware Co ltd
Current assignee: Dongguan Zhengchen Hardware Co ltd
Priority date: 2023-11-01
Filing date: 2023-11-01
Publication date: 2024-06-18
Anticipated expiration: 2033-11-01

Abstract

The utility model relates to the technical field of bolt fasteners and discloses a polyurethane stop bolt which comprises an end, wherein a cross groove is formed in the end, a protective shell is connected to the outer wall of the end in a sliding mode, a connecting disc is fixedly connected to the lower surface of the protective shell, a threaded column is fixedly connected to the lower surface of the connecting disc, a sliding block is connected to the inner portion of the connecting disc in a sliding mode, a telescopic rod is fixedly connected to the upper surface of the sliding block, one end of the telescopic rod is fixedly connected to the lower surface of the end, a spring is sleeved on the outer wall of the telescopic rod, and a limiting assembly is arranged in the connecting disc. According to the utility model, the protective shell is slid by pressing the end, the lower end of the end is clamped with the clamping groove and then rotates the end, and the end can drive the threaded column to rotate, so that the problem that the bolt rotates by mistakenly touching the end is solved, and the effect of preventing the bolt and the nut from loosening is achieved.

Description

Polyurethane stop bolt

Technical Field

The utility model relates to the technical field of bolt fasteners, in particular to a polyurethane stop bolt.

Background

The conventional stop bolts are mainly made of metal materials such as steel, iron and the like, and have the following problems in the use process: the wear resistance is poor, and metal bolt is when contacting with other materials, and the wearing and tearing take place easily, lead to bolt fracture or not hard up, and corrosion resistance is poor, and metal bolt is under adverse circumstances, like under conditions such as acid and alkali, humidity, and the influence life and security, and the weight is big, and metal bolt density is great, and weight is heavier, and the installation is wasted time and energy with handling in-process, and the cost is higher: the metal material has relatively high price, so that the cost of the traditional bolt is also high, and the polyurethane material has good tensile strength, wear resistance and corrosion resistance, so that the polyurethane material is widely applied to the field of bolts.

The search is carried out on the bulletin number: the CN213064244U discloses a looseness-preventing bolt, which comprises a head, a bolt, a fastener, a limit bar, a strong magnetic ring, a nut, a compressing part and a gasket, wherein the right side of the head is fixedly connected with one end of the bolt, the fastener is sleeved on the outer surface of the bolt, the limit bar is fixedly installed inside the fastener, a limit groove matched with the limit bar is formed in the outer surface of the bolt, the strong magnetic ring is fixedly installed on the right side of the fastener, the nut is connected with the bolt through threads, and the compressing part is positioned on the left side of the nut. The utility model achieves the purpose of preventing the looseness phenomenon between the nuts and the bolts, can effectively avoid the looseness of the nuts caused by machine vibration, and has the positioning and looseness prevention effects while the normal cooperation use of the bolts and the nuts is not affected, thereby ensuring the normal use of equipment, reducing the occurrence probability of safety accidents and prolonging the service life of the equipment. In this application, the situation of preventing the loosening of the bolt and the nut is realized by clamping the limit bar on the fastener with the limit groove on the bolt, but the problem that if the end of the bolt is touched by mistake during use, the end drives the bolt to rotate and separate from the nut is not considered.

Disclosure of utility model

In order to make up for the defects, the utility model provides a polyurethane stop bolt, which is improved, and the problem that the end head of the bolt is mistakenly touched and drives the bolt to rotate to separate from a nut when in use is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a polyurethane stop bolt, includes the end, the cross recess has been seted up to the inside of end, the outer wall sliding connection of end has the protective housing, the lower fixed surface of protective housing is connected with the connection pad, the lower fixed surface of connection pad is connected with the screw post, the inside sliding connection of connection pad has the slider, the last fixed surface of slider is connected with the telescopic link, the one end fixed connection of telescopic link is in the lower surface of end, the outer wall cover of telescopic link is equipped with the spring, the inside of connection pad is provided with spacing subassembly.

Further, the limiting component comprises a sliding groove and a clamping groove, the sliding groove is formed in the connecting disc, and the clamping groove is formed in the connecting disc.

Further, the outer wall sliding connection of slider is in the inner wall of spout, the lower surface sliding connection of end is in the inner wall of draw-in groove.

Further, one end of the spring is fixedly connected to the upper surface of the sliding block, and the other end of the spring is fixedly connected to the lower surface of the end head.

Further, the outer wall sliding connection of telescopic link is in the inner wall of protective housing, the outer wall sliding connection of spring is in the inner wall of protective housing.

Further, the outer wall sliding connection of screw thread post has the elastic pad, the lower surface sliding connection of elastic pad has the gasket.

Further, the inside sliding connection of gasket is in the outer wall of screw thread post, the outer wall threaded connection of screw thread post has hexagon nut.

Further, the lower surface of the gasket is slidably connected to the upper surface of the hexagonal nut.

The utility model has the following beneficial effects:

1. According to the utility model, the end head is enabled to slide into the protective shell by pressing the end head, the lower end of the end head is clamped with the clamping groove and then rotates the end head, the threaded column can be driven to rotate by the end head, at the moment, the threaded column, the connecting disc, the protective shell and the end head rotate simultaneously, after the threaded column is installed, the end head automatically resets under the action of the telescopic rod and the spring, when an external factor touches the end head by mistake, the end head drives the sliding block to rotate in the sliding groove through the telescopic rod, so that the problem that the end head is touched by mistake to rotate a bolt is solved, and the effect of preventing the bolt and the nut from loosening is achieved.

2. According to the utility model, the elastic pad is sleeved on the threaded column, the elastic pad can elastically deform, part of energy of vibration of the threaded column can be absorbed, and the force generated by vibration of the threaded column is further counteracted by resistance provided by friction force of the pad, so that the pad and the elastic pad are fixed by the hexagonal nut, and the effect of preventing the pad from being separated from the nut when the bolt vibrates is achieved.

Drawings

FIG. 1 is a perspective view of a polyurethane stop bolt according to the present utility model;

fig. 2 is a structural diagram of a protective housing of a polyurethane stop bolt according to the present utility model;

Fig. 3 is a structural diagram of a connecting disc of a polyurethane stop bolt provided by the utility model.

Legend description:

1. An end head; 2. a cross groove; 3. a protective shell; 4. a connecting disc; 5. a threaded column; 6. an elastic pad; 7. a gasket; 8. a hexagonal nut; 9. a telescopic rod; 10. a spring; 11. a chute; 12. a slide block; 13. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a polyurethane stop bolt, including end 1, cross recess 2 has been seted up to the inside of end 1, the outer wall sliding connection of end 1 has protective housing 3, the lower fixed surface of protective housing 3 is connected with connection pad 4, the lower fixed surface of connection pad 4 is connected with screw thread post 5, the inside sliding connection of connection pad 4 has slider 12, the last fixed surface of slider 12 is connected with telescopic link 9, the one end fixed connection of telescopic link 9 is at the lower surface of end 1, the outer wall cover of telescopic link 9 is equipped with spring 10, the inside of connection pad 4 is provided with spacing subassembly.

Specifically, after the installation of most bolts is completed, the end 1 of the bolt protrudes out of the fixing device, in some complex environments, a moving object easily touches the protruding end 1 by mistake, so that the end 1 drives the bolt to rotate, the bolt is easy to loosen over time, and the telescopic rod 9 and the sliding block 12 are arranged at the lower end of the end 1, so that the effect of controlling the connection of the end 1 and the threaded column 5 is achieved, and the problem of loosening of the bolt caused by the false touch is avoided.

Referring to fig. 2 and 3, the limiting assembly comprises a chute 11 and a clamping groove 13, wherein the chute 11 is arranged in the connecting disc 4, and the clamping groove 13 is arranged in the connecting disc 4; the outer wall of the sliding block 12 is connected with the inner wall of the sliding groove 11 in a sliding way, and the lower surface of the end head 1 is connected with the inner wall of the clamping groove 13 in a sliding way; one end of the spring 10 is fixedly connected to the upper surface of the sliding block 12, and the other end of the spring 10 is fixedly connected to the lower surface of the end head 1; the outer wall of the telescopic rod 9 is slidably connected to the inner wall of the protective casing 3, and the outer wall of the spring 10 is slidably connected to the inner wall of the protective casing 3.

Specifically, through offer the draw-in groove 13 the same with end 1 lower extreme shape in the inside of connection pad 4 for its lower extreme can closely laminate with draw-in groove 13 when pressing down end 1, and then drive screw thread post 5 and rotate, and when end 1 did not block with draw-in groove 13, only can drive slider 12 and slide in spout 11 and rotate when end 1 rotates, thereby realized end 1 and screw thread post 5 separation motion effect.

Referring to fig. 1, an elastic pad 6 is slidably connected to the outer wall of the threaded column 5, and a gasket 7 is slidably connected to the lower surface of the elastic pad 6; the inside of the gasket 7 is connected to the outer wall of the threaded column 5 in a sliding manner, and a hexagonal nut 8 is connected to the outer wall of the threaded column 5 in a threaded manner; the lower surface of the washer 7 is slidably connected to the upper surface of the hexagonal nut 8.

Specifically, the threaded column 5 is made of polyurethane material, has good tensile strength, wear resistance and corrosion resistance, the gasket 7 has a very high friction coefficient, can provide enough resistance in the stress process to prevent the bolt from loosening, and the elastic pad 6 is arranged above the gasket 7, so that when the bolt is vibrated, the elastic pad 6 can generate elastic deformation to absorb part of vibration energy, and the loosening probability of the bolt is reduced.

Working principle: when a polyurethane stop bolt is needed, firstly, the tool bit of the screwdriver is inserted into the cross groove 2, the screwdriver is pressed, the end head 1 slides into the protective shell 3, after the end head 1 slides to the bottom of the end head 1 to be attached to the clamping groove 13, the threaded column 5 penetrates through equipment to be fixed, then the elastic pad 6 and the gasket 7 penetrate through the bottom end of the threaded column 5, finally the hexagonal nut 8 is sleeved on the threaded column 5, the screwdriver is rotated, the connecting disc 4 and the threaded column 5 can be driven to rotate through the end head 1, the threaded column 5 and the hexagonal nut 8 are in threaded connection with the elastic pad 6 to be tightly attached to equipment to be tested, after the screwdriver is removed, the end head 1 resets under the action of the telescopic rod 9 and the spring 10, and when an external factor mistakenly touches the end head 1, the end head 1 drives the telescopic rod 9, the spring 10 and the slide block 12 to slide in the slide groove 11, namely the end head 1 rotates automatically without driving the threaded column 5 to rotate, and the effect of preventing detachment of the nut is achieved.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Polyurethane stop bolt, including end (1), its characterized in that: the inside of end (1) has been seted up cross groove (2), the outer wall sliding connection of end (1) has protective housing (3), the lower fixed surface of protective housing (3) is connected with connection pad (4), the lower fixed surface of connection pad (4) is connected with screw thread post (5), the inside sliding connection of connection pad (4) has slider (12), the upper surface fixedly connected with telescopic link (9) of slider (12), the one end fixed connection of telescopic link (9) is in the lower surface of end (1), the outer wall cover of telescopic link (9) is equipped with spring (10), the inside of connection pad (4) is provided with spacing subassembly.

2. A polyurethane stop bolt according to claim 1, wherein: the limiting assembly comprises a sliding groove (11) and a clamping groove (13), wherein the sliding groove (11) is formed in the connecting disc (4), and the clamping groove (13) is formed in the connecting disc (4).

3. A polyurethane stop bolt according to claim 2, wherein: the outer wall of the sliding block (12) is connected with the inner wall of the sliding groove (11) in a sliding mode, and the lower surface of the end head (1) is connected with the inner wall of the clamping groove (13) in a sliding mode.

4. A polyurethane stop bolt according to claim 1, wherein: one end of the spring (10) is fixedly connected to the upper surface of the sliding block (12), and the other end of the spring (10) is fixedly connected to the lower surface of the end head (1).

5. A polyurethane stop bolt according to claim 4, wherein: the outer wall sliding connection of telescopic link (9) is in the inner wall of protective housing (3), the outer wall sliding connection of spring (10) is in the inner wall of protective housing (3).

6. A polyurethane stop bolt according to claim 1, wherein: the outer wall sliding connection of screw thread post (5) has elastic pad (6), the lower surface sliding connection of elastic pad (6) has gasket (7).

7. A polyurethane stop bolt according to claim 6, wherein: the inside sliding connection of gasket (7) is in the outer wall of screw thread post (5), the outer wall threaded connection of screw thread post (5) has hexagon nut (8).

8. A polyurethane stop bolt according to claim 7, wherein: the lower surface of the gasket (7) is connected with the upper surface of the hexagonal nut (8) in a sliding way.