CN219472546U

CN219472546U - Screw bolt

Info

Publication number: CN219472546U
Application number: CN202320624369.4U
Authority: CN
Inventors: 贾乙
Original assignee: Hangzhou Jiani Industry And Trade Co ltd
Current assignee: Xu Bin
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-08-04
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to a screw, which comprises a screw rod and a protective sleeve, wherein a screw cap is fixedly arranged at the top of the screw rod, a fixed block is fixedly arranged at the outer part of the screw rod and at the bottom of the screw cap, the protective sleeve is arranged at the top of the screw cap, and a clamping mechanism extending to the inner part of the fixed block is arranged at the bottom of the protective sleeve. This screw, through setting up the lag, put the lag on the nut earlier, make connecting block and spacing ball on the bracing piece also can get into in the slot, twist the lag again and make it drive the bracing piece and slide in the spout, the bracing piece slides and drives connecting block and spacing ball and slide, make spacing ball slide in the draw-in groove top of both sides around the fixed block, then press down the lag and make the spacing ball card of bracing piece bottom go into the inside of draw-in groove, utilize draw-in groove and spacing ball with the top of lag fixed nut, make the lag can effectually protect the line on the nut, prevent the long-term exposure of nut in outside and the effect of corrosion.

Description

Screw bolt

Technical Field

The utility model relates to the technical field of screws, in particular to a screw.

Background

The screw is a common fastener, the frequency of the screw in each field is relatively wide, and the screw is widely used in machinery, electric appliances and buildings, the general material of the fastener is metal or plastic, the whole fastener is cylindrical, concave-convex grooves are carved on the surface of the fastener and are called threads, and the screw mainly has the function of connecting two workpieces together to play a role of fastening.

Screw application in the market has been very extensive at present, the screw is the physics and the mathematic principle of utilizing the circular rotation of inclined plane and frictional force of object, the instrument of fastener work step by step, the screw is the industry necessity that is indispensable in daily life, but most screws just can make its surface appear the condition of corrosion owing to expose outside for a long time, make the fixed line on the screw very much, like common cross line and hexagon line, the screw exposes for a long time can lead to unable dismantlement behind the line corrosion, just can influence the result of use of screw.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the screw which has the advantage of protecting screw lines, and solves the problem that the use effect of the screw is affected because most screws can be corroded on the surface due to long-time exposure, and particularly the fixed lines on the screw, such as common cross lines and hexagonal lines, cannot be disassembled after the lines are corroded due to long-time exposure of the screw.

In order to achieve the purpose of protecting the screw lines, the utility model provides the following technical scheme: the screw comprises a screw rod and a protective sleeve, wherein a screw cap is fixedly arranged at the top of the screw rod, a fixed block is fixedly arranged at the outer part of the screw rod and at the bottom of the screw cap, the protective sleeve is arranged at the top of the screw cap, and a clamping mechanism extending to the inner part of the fixed block is arranged at the bottom of the protective sleeve;

the clamping mechanism comprises a supporting rod, the bottoms of the left side and the right side of the protective sleeve are fixedly provided with supporting rods, the bottoms of the supporting rods are fixedly provided with limiting balls, connecting blocks are fixedly arranged outside the supporting rods and at the tops of the limiting balls, and clamping grooves which are clamped with the limiting balls are formed in the front side and the rear side of each fixing block.

Further, threads are arranged on the outer portion of the screw rod, and corresponding vein grooves are formed in the top of the nut.

Further, slots matched with the limiting balls and the connecting blocks are formed in the left side and the right side of the fixing block, and sliding grooves matched with the limiting balls and the connecting blocks are formed in the fixing block.

Further, the slot and the clamping groove are communicated with the sliding groove, the slot is positioned at the top of the sliding groove, and the clamping groove is positioned at the bottom of the sliding groove.

Further, an arc-shaped groove matched with the support rod is formed in the outer surface of the upper side of the fixing block, and the arc-shaped groove is communicated with the sliding groove and the slot.

Further, the two supporting rods are also positioned at the left side and the right side of the screw cap, and the areas of the fixed block and the protective sleeve are both larger than the area of the screw cap.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this screw, through setting up the lag, after the screw rod is fixed, firstly put the lag on the nut, make bracing piece insert in the inside slot of fixed block, connecting block and spacing ball on the bracing piece also can get into in the slot simultaneously, twist the lag again and make it drive the bracing piece and slide in the spout, the bracing piece slides and drives connecting block and spacing ball and slide, make spacing ball slide in the draw-in groove top of both sides around the fixed block, then press down the lag to make the spacing ball card of bracing piece bottom go into the inside of draw-in groove, utilize draw-in groove and spacing ball with the top of lag fixation nut, make the lag can effectually protect the line on the nut, prevent the long-term exposure of nut in outside and the effect of corrosion.

2. This screw, through setting up the connecting block, when the screw rod needs to be dismantled, pull out earlier the lag makes it drive the bracing piece and upwards moves, and the bracing piece removes to drive spacing ball and draw-in groove separation, and at this moment connecting block pastes with the inside spout of fixed block, proves that spacing ball has broken away from the draw-in groove, twists the lag again and makes the bracing piece drive spacing ball and slide to the slot in the spout, upwards moves the lag again and makes the bracing piece drive spacing ball and connecting block break away from the slot to dismantle the effect of back convenient to detach screw rod with the lag.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is a partial top cross-sectional view of the structure of the present utility model;

fig. 4 is an enlarged view of a portion a of fig. 2, which is a structural view of the present utility model.

In the figure: 1. a screw; 2. a screw cap; 3. a fixed block; 4. a protective sleeve; 5. a clamping mechanism; 501. a support rod; 502. a limit ball; 503. a connecting block; 504. 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. 1-4, a screw in this embodiment includes a screw 1 and a protecting sleeve 4, a nut 2 is fixedly mounted on the top of the screw 1, a fixing block 3 is fixedly mounted on the outside of the screw 1 and at the bottom of the nut 2, the protecting sleeve 4 is disposed on the top of the nut 2, and a clamping mechanism 5 extending into the fixing block 3 is disposed at the bottom of the protecting sleeve 4;

the clamping mechanism 5 comprises a supporting rod 501, supporting rods 501 are fixedly arranged at the bottoms of the left side and the right side of a protective sleeve 4, after a screw rod 1 is fixed, the protective sleeve 4 is firstly placed on a nut 2, the supporting rod 501 is inserted into a slot in a fixed block 3, meanwhile, a connecting block 503 and a limiting ball 502 on the supporting rod 501 can also enter the slot, the bottom of the supporting rod 501 is fixedly arranged with the limiting ball 502, the protective sleeve 4 is twisted to drive the supporting rod 501 to slide in a sliding groove, the supporting rod 501 slides to drive the connecting block 503 and the limiting ball 502 to slide, a connecting block 503 is fixedly arranged at the top of the limiting ball 502, clamping grooves 504 which are clamped with the limiting balls 502 are respectively arranged in the front side and the rear side of the fixed block 4, the limiting ball 502 slides into the upper portion of the clamping grooves 504 on the front side and the rear side of the fixed block 3, and then the limiting ball 502 is downwards pressed to clamp the limiting ball 502 at the bottom of the supporting rod 501 into the inner portion of the clamping grooves 504, and the top of the nut 2 is fixed with the protective sleeve 4 by the clamping grooves 504 and the limiting balls 502, so that the protective sleeve 4 can effectively protect lines on the nut 2 from being corroded by the long-term exposure of the nut 2.

In case implementation, the slots matched with the limit balls 502 and the connecting blocks 503 are respectively formed in the left side and the right side of the fixed block 3, so that the supporting rod 501 drives the limit balls 502 and the connecting blocks 503 to be inserted into the fixed block 3, the sliding grooves matched with the limit balls 502 and the connecting blocks 503 are formed in the fixed block 3, the supporting rod 501 slides to drive the connecting blocks 503 and the limit balls 502 to slide, the slots and the clamping grooves 504 are all communicated with the sliding grooves, the slots are formed in the tops of the sliding grooves, the clamping grooves 504 are formed in the bottoms of the sliding grooves, arc-shaped grooves matched with the supporting rod 501 are formed in the outer surfaces of the upper sides of the fixed block 3, the arc-shaped grooves are communicated with the sliding grooves and the slots, and the supporting rod 501 slides.

In practice, the method is carried out according to the following steps:

1) When the screw 1 is fixed, the protective sleeve 4 is firstly placed on the screw cap 2, so that the supporting rod 501 is inserted into the slot in the fixed block 3;

2) Meanwhile, a connecting block 503 and a limiting ball 502 on the supporting rod 501 can also enter the slot;

3) Then the protective sleeve 4 is twisted to drive the supporting rod 501 to slide in the chute, the supporting rod 501 slides to drive the connecting block 503 and the limiting ball 502 to slide, and the limiting ball 502 slides into the clamping grooves 504 on the front side and the rear side of the fixed block 3;

4) Finally, the protective sleeve 4 is pressed downwards to enable the limit ball 502 at the bottom of the supporting rod 501 to be clamped into the clamping groove 504, and the clamping groove 504 and the limit ball 502 are utilized to fix the top of the nut 2 on the protective sleeve 4, so that the protective sleeve 4 can effectively protect lines on the nut 2 and prevent the nut 2 from being corroded due to long-term exposure to the outside.

To sum up, this screw, through setting up lag 4, after screw rod 1 is fixed, put lag 4 on nut 2 earlier, make bracing piece 501 insert in the inside slot of fixed block 3, connecting block 503 and spacing ball 502 on the bracing piece 501 also can get into in the slot simultaneously, twist lag 4 again and make it drive bracing piece 501 and slide in the spout, bracing piece 501 slides and drives connecting block 503 and spacing ball 502 and slide, make spacing ball 502 slide in the draw-in groove 504 top of both sides around fixed block 3, then push down lag 4 makes the spacing ball 502 card of bracing piece 501 bottom go into the inside of draw-in groove 504, utilize draw-in groove 504 and spacing ball 502 with the top of lag 4 fixed nut 2, make lag 4 can effectually protect the line on the nut 2, prevent nut 2 from exposing outside for a long time and the effect of corrosion.

And, through setting up connecting block 503, when needs dismantlement screw rod 1, pull out lag 4 earlier and make it drive bracing piece 501 upwards move, bracing piece 501 removes and drives spacing ball 502 and draw-in groove 504 separation, at this moment connecting block 503 pastes with the inside spout of fixed block 3, prove spacing ball 502 has broken away from draw-in groove 504, twist lag 4 again makes bracing piece 501 drive spacing ball 502 slide to the slot in the spout, upward move about lag 4 again and make bracing piece 501 drive spacing ball 502 and connecting block 503 break away from the slot, thereby dismantle lag 4 back convenient to detach screw rod 1's effect.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. Screw, including screw rod (1) and lag (4), its characterized in that: the screw cap (2) is fixedly arranged at the top of the screw rod (1), the fixing block (3) is fixedly arranged at the outside of the screw rod (1) and at the bottom of the screw cap (2), the protecting sleeve (4) is arranged at the top of the screw cap (2), and the clamping mechanism (5) extending to the inside of the fixing block (3) is arranged at the bottom of the protecting sleeve (4);

the clamping mechanism (5) comprises a supporting rod (501), the supporting rods (501) are fixedly installed at the bottoms of the left side and the right side of the protective sleeve (4), limiting balls (502) are fixedly installed at the bottoms of the supporting rods (501), connecting blocks (503) are fixedly installed at the outsides of the supporting rods (501) and the tops of the limiting balls (502), and clamping grooves (504) clamped with the limiting balls (502) are formed in the front side and the rear side of the fixing block (3).

2. A screw according to claim 1, wherein: the screw is characterized in that threads are arranged on the outer portion of the screw rod (1), and corresponding vein grooves are formed in the top of the screw cap (2).

3. A screw according to claim 1, wherein: slots matched with the limiting balls (502) and the connecting blocks (503) are formed in the left side and the right side of the fixed block (3), and sliding grooves matched with the limiting balls (502) and the connecting blocks (503) are formed in the fixed block (3).

4. A screw according to claim 3, wherein: the slot and the clamping groove (504) are communicated with the sliding groove, the slot is positioned at the top of the sliding groove, and the clamping groove (504) is positioned at the bottom of the sliding groove.

5. A screw as defined in claim 4, wherein: an arc-shaped groove matched with the supporting rod (501) is formed in the outer surface of the upper side of the fixed block (3), and the arc-shaped groove is communicated with the sliding groove and the slot.

6. A screw according to claim 1, wherein: the two supporting rods (501) are also arranged on the left side and the right side of the screw cap (2), and the areas of the fixed block (3) and the protective sleeve (4) are both larger than the area of the screw cap (2).