CN216199686U - Wear-resisting type socket head cap screw - Google Patents

Abstract

The utility model discloses a wear-resistant inner hexagon screw, which belongs to the technical field of screws and comprises a screw cap component, wherein a screw rod component is arranged below the screw cap component, slots are formed in two sides of the screw cap component, and a protective device is arranged on the screw cap component at a position corresponding to the two slots; the protection device comprises a protection shell, an extension spring, pull plates and insertion rods, wherein the protection shell is arranged on the outer side of the nail cap assembly, the insertion rods are connected to the positions, corresponding to the two insertion slots, of the protection shell in a sliding mode, and the pull plates are mounted on two sides, far away from each other, of the two insertion rods; according to the utility model, the screw cap component can be protected to a certain extent by the screw through the protective shell when required by arranging the protective device and the slot, so that the possibility of damage to the screw cap component is reduced, the normal operation of screw assembling and disassembling is ensured, and the practicability of the screw is further improved.

Description

Wear-resisting type socket head cap screw

Technical Field

The utility model belongs to the technical field of screws, and particularly relates to a wear-resistant inner hexagonal screw.

Background

Screws are a common fastener and are widely used in machinery, electrical appliances and buildings. Generally, the material is metal or plastic, and is cylindrical, and the grooves with the concave and convex surfaces are called as screw threads.

Chinese patent application No. CN202022495814.0 discloses a wear-resistant socket head cap screw, which can correspond to various wrenches, and is not easy to wear, and has good lubricating effect and high strength.

The prior art has the following problems: 1. the problem that the screw cap and the upper structure thereof are easy to damage due to external impact and the like exists in the patent, so that the assembling and disassembling work of the screw is easily influenced, and the practicability of the screw is further reduced; 2. above-mentioned patent exists the rusty problem of screw easily weing to cause the influence to the work of screw easily, and then reduced the dampproofing ability of screw.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a wear-resistant inner hexagon screw which has the characteristics of high practicability and strong moisture resistance.

In order to achieve the purpose, the utility model provides the following technical scheme: a wear-resistant inner hexagon screw comprises a screw cap component, wherein a screw rod component is arranged below the screw cap component, slots are formed in two sides of the screw cap component, and a protective device is arranged on the screw cap component and corresponds to the two slots;

the protection device comprises a protection shell, an extension spring, a pull plate and an insertion rod, wherein the protection shell is arranged on the outer side of the nail cap assembly, the insertion rod is connected to the position, corresponding to the two slots, of the protection shell in a sliding mode, the pull plate is installed on the two sides, away from the insertion rod, of the protection shell, and the extension spring is installed between the protection shell and the pull plate and located at the position outside the insertion rod.

Preferably, the inside diameter of the slot is equal to the outside diameter of the inserted bar, and the slot is connected with the inserted bar in a sliding manner.

Preferably, the protection device further comprises a rubber ring, and the rubber ring is installed below the protection shell.

Preferably, one side of protecting crust and the position that is located the arm-tie below install dampproof device, dampproof device includes a net section of thick bamboo, a fixed section of thick bamboo and silica gel drier, a fixed section of thick bamboo is installed to one side of protecting crust and the position that is located the arm-tie below, a net section of thick bamboo is installed to the inboard of a fixed section of thick bamboo, the inboard packing of a net section of thick bamboo has the silica gel drier.

Preferably, the moisture-proof device further comprises a blocking block, and the blocking block is installed on the fixed cylinder corresponding to the net cylinder through threads.

Preferably, the moisture-proof device further comprises an observation window, the observation window is installed on the inner side of the plugging block, and the observation window is made of a transparent plastic plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the screw cap component can be protected to a certain extent by the screw through the protective shell when required by arranging the protective device and the slot, so that the possibility of damage to the screw cap component is reduced, the normal operation of screw assembling and disassembling is ensured, and the practicability of the screw is further improved.

2. According to the utility model, the moisture-proof device is arranged, so that the screw can be prevented from being wetted and rusted by the silica gel desiccant when needed, the possibility of influencing the work of the screw is further reduced, and the moisture-proof capability of the screw is further improved.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure of the protection device of the present invention;

fig. 4 is a schematic view of the moisture barrier of the present invention.

In the figure: 1. a screw assembly; 2. a guard; 21. a rubber ring; 22. a protective shell; 23. an extension spring; 24. pulling a plate; 25. inserting a rod; 3. a moisture barrier; 31. a net drum; 32. a fixed cylinder; 33. a silica gel desiccant; 34. an observation window; 35. a plugging block; 4. a nut assembly; 5. and (4) a slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides the following technical solutions: a wear-resistant inner hexagon screw comprises a screw cap component 4, a screw rod component 1 is arranged below the screw cap component 4, slots 5 are formed in two sides of the screw cap component 4, and a protection device 2 is arranged on the screw cap component 4 corresponding to the two slots 5;

the protection device 2 comprises a protection shell 22, an extension spring 23, a pull plate 24 and an insertion rod 25, the protection shell 22 is arranged on the outer side of the nail cap assembly 4, the insertion rod 25 is connected to the position, corresponding to the two slots 5, of the protection shell 22 in a sliding mode, the pull plate 24 is installed on two sides, away from each other, of the two insertion rods 25, and the extension spring 23 is installed between the protection shell 22 and the pull plate 24 and located on the position, outside the insertion rod 25.

Specifically, the inner diameter of the slot 5 is equal to the outer diameter of the inserted rod 25, the slot 5 is connected with the inserted rod 25 in a sliding way,

by adopting the technical scheme, the normal matching between the slot 5 and the inserted rod 25 is ensured.

Specifically, the protection device 2 further comprises a rubber ring 21, the rubber ring 21 is arranged below the protection shell 22,

by adopting the technical scheme, the possibility that the protective shell 22 is damaged when the screw is installed is reduced.

When the screw is required to be used, the screw rod assembly 1 and the screw cap assembly 4 are operated and installed at required positions so as to work; when the nail cap assembly 4 needs to be protected, the two pulling plates 24 in the protection device 2 are pulled, so that the tail ends of the two insertion rods 25 move to proper positions, then the protection shell 22 is sleeved outside the nail cap assembly 4, the two pulling plates 24 are loosened, under the action of the stretching springs 23, the two pulling plates 24 return to the original positions, the two insertion rods 25 are further driven to be respectively inserted into the corresponding slots 5, so that the fixation is performed, then the nail cap assembly 4 is protected through the protection shell 22, and the rubber ring 21 plays a role in reducing the possibility that the protection shell 22 is damaged when a screw is installed;

example 2

The present embodiment is different from embodiment 1 in that: the moisture-proof device 3 is arranged at one side of the protective shell 22 and below the pulling plate 24, the moisture-proof device 3 comprises a mesh cylinder 31, a fixed cylinder 32 and a silica gel desiccant 33, the fixed cylinder 32 is arranged at one side of the protective shell 22 and below the pulling plate 24, the mesh cylinder 31 is arranged at the inner side of the fixed cylinder 32, the silica gel desiccant 33 is filled at the inner side of the mesh cylinder 31,

through adopting above-mentioned technical scheme for the screw can prevent to appear the rusty phenomenon of weing by self through silica gel drier 33 when needs, and then has reduced the work of screw and has received the possibility of influence.

Specifically, the moisture-proof device 3 further comprises a blocking block 35, the blocking block 35 is installed on the fixed cylinder 32 corresponding to the net cylinder 31 through threads,

through adopting above-mentioned technical scheme, made things convenient for the staff to change silica gel drier 33.

Specifically, the moisture-proof device 3 further comprises an observation window 34, the observation window 34 is installed on the inner side of the blocking block 35, the observation window 34 is made of a transparent plastic plate,

by adopting the technical scheme, the worker can conveniently observe the state of the silica gel drying agent 33.

When this embodiment uses, when needs carry out the dampproofing, unscrew the jam piece 35 among the dampproofing device 3, then to putting into sufficient silica gel drier 33 in the net section of thick bamboo 31, the rethread screw will block up the piece 35 and install back the primary importance, moisture in the air around the screw gets into fixed section of thick bamboo 32 and is absorbed by the silica gel drier 33 in the net section of thick bamboo 31 to dampproofing, observation window 34 has played the effect that makes things convenient for the staff to observe the silica gel drier 33 state.

The structure and the principle of the screw rod component 1 and the screw cap component 4 in the utility model are disclosed in a wear-resistant socket head cap screw disclosed in Chinese patent application No. CN 202022495814.0.

The working principle and the using process of the utility model are as follows: when the screw is needed to be used, the screw rod component 1 and the screw cap component 4 are operated and installed at the needed positions so as to work; when the nail cap assembly 4 needs to be protected, the two pulling plates 24 in the protection device 2 are pulled, so that the tail ends of the two insertion rods 25 move to proper positions, then the protection shell 22 is sleeved outside the nail cap assembly 4, the two pulling plates 24 are loosened, under the action of the stretching springs 23, the two pulling plates 24 return to the original positions, the two insertion rods 25 are further driven to be respectively inserted into the corresponding slots 5, so that the fixation is performed, then the nail cap assembly 4 is protected through the protection shell 22, and the rubber ring 21 plays a role in reducing the possibility that the protection shell 22 is damaged when a screw is installed; when moisture proofing is needed, the blocking block 35 in the moisture proofing device 3 is unscrewed, then enough silica gel desiccant 33 is put into the mesh cylinder 31, the blocking block 35 is installed back to the original position through threads, moisture in the air around the screw enters the fixed cylinder 32 and is absorbed by the silica gel desiccant 33 in the mesh cylinder 31, moisture proofing is achieved, and the observation window 34 plays a role in facilitating workers to observe the state of the silica gel desiccant 33.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A wear-resistant socket head cap screw, includes nut cap subassembly (4), its characterized in that: a screw rod assembly (1) is arranged below the nail cap assembly (4), slots (5) are formed in the two sides of the nail cap assembly (4), and a protective device (2) is arranged on the nail cap assembly (4) in a position corresponding to the two slots (5);

protector (2) include protecting crust (22), extension spring (23), arm-tie (24) and inserted bar (25), the outside of nail cap subassembly (4) is provided with protecting crust (22), there are inserted bar (25) with two corresponding position sliding connection of slot (5) on protecting crust (22), two both sides of keeping away from each other between inserted bar (25) all install arm-tie (24), extension spring (23) are installed to the position that just is located the inserted bar (25) outside between protecting crust (22) and arm-tie (24).

2. A wear resistant allen screw as defined in claim 1 wherein: the inside diameter of slot (5) is equal with the outside diameter of inserted bar (25), sliding connection between slot (5) and inserted bar (25).

3. A wear resistant allen screw as defined in claim 1 wherein: the protection device (2) further comprises a rubber ring (21), and the rubber ring (21) is installed below the protection shell (22).

4. A wear resistant allen screw as defined in claim 1 wherein: dampproof device (3) are installed to one side of protecting crust (22) and the position that is located arm-tie (24) below, dampproof device (3) are including a net section of thick bamboo (31), solid fixed cylinder (32) and silica gel drier (33), gu fixed cylinder (32) are installed to one side of protecting crust (22) and the position that is located arm-tie (24) below, a net section of thick bamboo (31) is installed to the inboard of solid fixed cylinder (32), the inboard packing of a net section of thick bamboo (31) has silica gel drier (33).

5. A wear resistant allen screw as defined in claim 4 wherein: the damp-proof device (3) further comprises a blocking block (35), and the blocking block (35) is installed on the position, corresponding to the net barrel (31), on the fixed barrel (32) through threads.

6. A wear resistant allen screw as defined in claim 5 wherein: dampproof device (3) still includes observation window (34), observation window (34) are installed to the inboard of shutoff piece (35), the material of observation window (34) is transparent plastic slab.

Images