CN211288392U

CN211288392U - Bolt with not hard up warning

Info

Publication number: CN211288392U
Application number: CN201921727364.4U
Authority: CN
Inventors: 周庆威; 周庆龙; 王辉
Original assignee: Hebei Yongsheng Petrochemical Machinery Mfg Co ltd
Current assignee: Hebei Yongsheng Petrochemical Machinery Mfg Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-08-18
Anticipated expiration: 2029-10-15

Abstract

The utility model provides a bolt with not hard up warning, which comprises a bolt, the bolt is the integrative structure of spiral shell head and the screw rod body constitution, the spout of orientation for following its screw thread rotation direction is seted up to the middle part periphery of the screw rod body, the inside of spout is equipped with sliding fit's slider with it, the soft contact block of preceding fixed mounting of slider, the coefficient of friction of contact block is greater than the dynamic friction coefficient of slider, the first line hole of orientation screw rod axis direction is seted up to the top inner wall of spout, vertical second line hole has been seted up at the top surface middle part of hob, first line hole communicates with each other with second line hole is inside. The workman can judge whether this bolt is not hard up through the difference in height of observing the top surface of movable block and tieing the head top surface, and is simple and clear, and the workman need not fasten bolt by one, has avoided the fastening to not hard up bolt, causes its condition emergence of not considering the loss, has prolonged its life.

Description

Bolt with not hard up warning

Technical Field

The utility model belongs to mechanical fastener detection area, specifically speaking are bolts with not hard up warning.

Background

The bolt is as common pipeline fastener, wide application in people's production, in the life, and by the vibrations of tight pipeline, the cold and hot change of outside weather can all make fastening bolt not hard up, for preventing that the bolt is not hard up to cause the pipeline to rock and then influence normal fluid transport, workman need regular fastening bolt, the workman is under the condition that does not know which bolt is not hard up, will fastening bolt next, and the fastening bolt quantity of pipeline is huge for industrial transportation, it wastes time and energy to fasten next, and the bolt that the workman fastens not hard up can lead to the fact the wearing and tearing loss to the bolt, can reduce the life of bolt in the long past, the maintenance cost that the diversion increases.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bolt with not hard up warning for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a bolt with looseness warning function comprises a bolt body, the bolt body is of an integral structure consisting of a bolt head and a screw rod body, a sliding groove facing to the direction along the thread turning direction of the bolt body is formed in the middle of the screw rod body, a sliding block in sliding fit with the sliding groove is arranged inside the sliding groove, a soft contact block is fixedly installed in front of the sliding block, the friction coefficient of the contact block is larger than the dynamic friction coefficient of the sliding block, a first wire hole facing to the axial line direction of the screw rod is formed in the inner wall of the top end of the sliding groove, a vertical second wire hole is formed in the middle of the top surface of the screw rod, the first wire hole is communicated with the second wire hole, a first groove is formed in the top surface of the bolt head, a reversed T-shaped moving block with an opening in the bottom surface is arranged inside the first groove, a first spring is arranged on the periphery of the moving block, the bottom end of the first spring is fixedly, the inner cavity of the moving block is provided with a second groove in a stepped shape, the inner cavity of the moving block is provided with a block body, the block body and the screw head are of an integrated structure, the periphery of the block body is provided with a plurality of radial through holes, the vertical center line of each through hole is collinear with the vertical center line of the screw body, the top of each second wire hole is communicated with the inside of each through hole, the inside of each through hole is respectively provided with a clamping mechanism, the middle part of the bottom surface of each clamping mechanism is provided with a wire rope, and the bottom end of the wire rope penetrates through the periphery of the first.

The bolt with the looseness warning function is characterized in that the clamping mechanism respectively comprises two inserting rods and two second springs, one ends of the two second springs are respectively and fixedly connected with the inner walls of the middle parts of the corresponding second grooves, the other ends of the two second springs are respectively and fixedly connected with one ends of the corresponding inserting rods, the other ends of the two inserting rods can be respectively in contact fit with the inner walls of the adjacent second grooves, the top ends of the cords penetrate through the interiors of the corresponding second springs, and the top ends of the cords are respectively and fixedly connected with the peripheries of the two inserting rods.

According to the bolt with the looseness warning function, one end, away from the vertical center line of the bolt, of the inserted rod is a wedge-shaped surface with an upward inclined surface, and the top surface of the step groove of the second groove is a wedge-shaped surface.

The bolt with the looseness warning function is characterized in that the first groove is composed of an upper groove, a middle groove and a lower groove, the middle groove is arranged below the upper groove, an annular lower groove is arranged below the middle groove, the upper groove, the middle groove and the lower groove are communicated, the inner diameter of the upper groove is smaller than that of the middle groove, and the inner diameter of the middle groove is equal to that of the lower groove.

According to the bolt with the looseness warning function, the rubber cap is fixedly installed on the top surface of the moving block.

According to the bolt with the looseness warning function, the periphery of the moving block is sequentially coated with the warning rings in different colors.

The utility model has the advantages that: the utility model aims to overcome the defects in the prior art, and provides a bolt with looseness warning, when a worker fastens the bolt, the looseness condition of the bolt can be judged by observing the position of a movable block relative to a screw head, so as to determine whether the bolt is fastened, when the bolt is used, the worker screws the bolt into a fastener matched with the bolt, a contact block drives a sliding block to slide to the top end of a sliding groove under the action of friction force, then the worker presses the movable block downwards until the top surface of the movable block is lower than the bottom surface of the screw head, a first spring stores energy, at the moment, each inserted rod is positioned in the uppermost step groove of a second groove, when the bolt is loosened, the bolt slides relative to the corresponding fastener, and because the friction coefficient of the contact block is greater than that of the bolt, the relative displacement of the contact block and the fastener is less than that of the bolt and the fastener, namely, the sliding block slides downwards relatively along the sliding groove, the sliding, the top atress of cotton rope moves in opposite directions and drives the inserted bar relative motion, when the lateral displacement volume of inserted bar is greater than the step face lateral length of second recess, first spring release energy storage drives the movable block upwards displacement, the inserted bar slides in the below step inslot of second recess, the top surface of movable block is higher than the top surface of tieing the head, the workman is through observing the difference in height of the top surface of movable block and tieing the head top surface, can judge whether this bolt is not hard up, it is simple and clear, the workman need not be fastening bolt by one, the fastening to not hard up bolt has been avoided, cause its condition of not considering the loss to take place, the life has prolonged, the workman still can tentatively judge the not hard up degree of bolt through the difference in height, provide the reference for workman fastening bolt, help improving workman's fastening efficiency, save time and save trouble.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of the cross-sectional view taken along line A-A of FIG. 1; fig. 3 is an enlarged view of view i of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A bolt with looseness warning function comprises a bolt 1, wherein the bolt 1 is of an integrated structure consisting of a screw head and a screw rod body, a sliding groove 2 facing to the direction along the screw thread turning direction is formed in the periphery of the middle of the screw rod body, the sliding groove 2 is a T-shaped sliding block, a sliding block 3 in sliding fit with the sliding groove 2 is arranged inside the sliding groove 2, a soft contact block 4 is fixedly installed in the front of the sliding block 3, the rear end of the contact block 4 is located in the sliding groove 2, the front of the contact block 4 and the screw thread of the screw rod body are located in the same cylindrical surface, the friction coefficient of the contact block 4 is larger than the dynamic friction coefficient of the sliding block 3, a first line hole 6 facing to the axial line direction of the screw rod is formed in the inner wall of the top end of the sliding groove 2, a vertical second line hole 7 is formed in the middle of the top surface of the screw rod, the first line hole 6 is communicated with the inside of the second line hole 7, a, the moving block 9 can vertically slide in the first groove 8, a first spring 5 is arranged on the periphery of the moving block 9, the bottom end of the first spring 5 is fixedly connected with the top surface of the periphery of the thick end of the moving block 9, the top end of the first spring 5 is fixedly connected with the inner wall of the periphery of the side of the first groove 8, a stepped second groove 10 is formed in the inner cavity of the moving block 9, the inner diameter of the stepped groove of the second groove 10 is sequentially reduced from top to bottom, a block body 11 is arranged in the inner cavity of the moving block 9, the block body 11 and a screw head are of an integral structure, a plurality of radial through holes 12 are formed in the periphery of the block body 11, the vertical central line of each through hole 12 is collinear with the vertical central line of the screw body, the top of each second through hole 7 is communicated with the inside of each through hole 12, clamping mechanisms are respectively arranged inside the through holes 12, the clamping, the middle part of the bottom surface of the clamping mechanism is provided with a thread rope, and the bottom end of the thread rope passes through the first thread hole 6 and the second thread hole 7 and is fixedly connected with the periphery of the contact block 4. The utility model aims to overcome the defects in the prior art, and provides a bolt with looseness warning, when a worker fastens the bolt, the looseness of the bolt can be judged by observing the position of a moving block 9 relative to a screw head, so as to determine whether the bolt is fastened, when the bolt is screwed into a fastener matched with the bolt by the worker, a contact block 4 drives a slide block 3 to slide to the top end of a chute 2 under the action of friction force, then, the worker presses the moving block 9 downwards until the top surface of the moving block is lower than the bottom surface of the screw head, a first spring 5 stores energy, at the moment, each inserted bar 13 is positioned in the uppermost step groove of a second groove 10, when the bolt is loosened, the bolt slides relative to the corresponding fastener, as the friction coefficient of the contact block 4 is greater than that of the bolt, the relative displacement of the contact block 4 and the fastener is smaller than that of the bolt and the fastener, namely, the slide block 3 slides downwards relative to the, the sliding block 3 drives the bottom of the thread rope to move downwards relatively, the top of the thread rope is stressed to move oppositely to drive the corresponding inserted rods 13 to move oppositely, when the transverse displacement of the inserted rods 13 is larger than the transverse length of the step surface of the second groove 10, the first spring 5 releases energy storage to drive the moving block 9 to move upwards, the inserted rods 13 slide into the step groove below the second groove 10, the top surface of the moving block 9 is higher than the top surface of the bolt head, a worker can judge whether the bolt is loosened or not by observing the height difference between the top surface of the moving block 9 and the top surface of the bolt head, the worker is simple and clear, the worker does not need to fasten the bolt, the fastening of the bolt which is not loosened is avoided, the condition that the bolt is not subjected to loss is avoided, the service life of the worker is prolonged, the worker can preliminarily judge the loosening degree of the bolt through the height difference, a reference basis is provided for fastening the, time and trouble are saved.

Specifically, as shown in fig. 1, the clamping mechanism according to this embodiment is respectively composed of two insertion rods 13 and two second springs 14, one end of each of the two second springs 14 is respectively and fixedly connected to an inner wall of a middle portion of the corresponding second groove 10, the two second springs 14 are symmetrically distributed on two sides of a vertical center line of the second groove 10, each of the springs 14 is a circular truncated cone shaped spring, the other end of each of the two second springs 14 is respectively and fixedly connected to one end of the corresponding insertion rod 13, the other end of each of the two insertion rods 13 can be respectively in contact fit with an inner wall of the adjacent second groove 10, a top end of a string passes through an inside of the corresponding second spring 14, a top end of the string is respectively and fixedly connected to peripheries of the two insertion rods 13, and the string is always in a tightened state. After the bolt 1 is fastened, the slider 3 is located at the top end of the sliding groove 2, the inserted rod 13 is located in the uppermost step groove of the second groove 10 at the moment, the first spring 5 is in a compressed energy storage state, when the bolt 1 is not flexible, the slider 3 relatively moves downwards along the sliding groove 2, the slider 3 drives the top of the cord to move in the opposite direction, the cord pulls the corresponding inserted rod 13 to move towards the middle of the corresponding through hole 12 along the through hole 12, when the transverse displacement of the inserted rod 13 is larger than the transverse length of the step surface of the second groove 10, the first spring 5 releases energy storage to drive the movable block 9 to move upwards, the inserted rod 13 slides into the step groove below the second groove 10, the top surface of the movable block 9 is located above the screw head, and a worker can distinguish whether the bolt is flexible or not by observing the relative position of the top surface of the movable block 9.

Specifically, the utility model discloses after the workman is screwing up the bolt, the workman need manual pushing down movable block 9, makes in inserted bar 13 all inserts the top step recess of second recess 10, again this in-process, movable block 9 pushes down the displacement and too big can cause the harm of inserted bar 13, for overcoming above-mentioned problem, this embodiment inserted bar 13 the one end that deviates from bolt vertical center line be inclined plane wedge face up, the step groove top surface of second recess 10 is the wedge face. When the wedge-shaped surface of the inserted rod 13 enables the downward pressing displacement of the moving block 9 to be overlarge, the inserted rod 13 can reduce the hard contact with the inner wall of the second groove 10 through the transverse displacement, and the damage probability of the inserted rod 13 is effectively reduced.

Further, as shown in fig. 1, the first groove 8 described in this embodiment is composed of an upper groove 8-1, a middle groove 8-2, and a lower groove 8-3, the middle groove 8-2 is disposed below the upper groove 8-1, the annular lower groove 8-3 is disposed below the middle groove 8-2, the upper groove 8-1, the middle groove 8-2, and the lower groove 8-3 are all communicated, the inner diameter of the upper groove 8-1 is smaller than the inner diameter of the middle groove 8-2, and the inner diameter of the middle groove 8-2 is equal to the outer diameter of the lower groove 8-3. The structure limits the moving block 9 to be separated when providing a storage space and sliding guide for the moving block 9, the bottom groove 8-3 is annular, the size of the groove is reduced, the contact area of a screw head and the moving block 9 is increased, and the rigidity of a bolt is improved.

Further, as shown in fig. 1, a rubber cap 15 is fixedly mounted on the top surface of the moving block 9 according to the present embodiment. The rubber cap 15 can avoid damage to the hands of a worker by the moving block 9, and is beneficial to increasing the comfort of the worker when the worker presses the moving block 9.

Furthermore, as shown in fig. 1, the periphery of the moving block 9 of the present embodiment is sequentially coated with a plurality of warning rings with different colors. The warning ring has better visual effect, can enable workers to find the loosened bolt more easily and fasten the loosened bolt, is simple and clear, and is beneficial to improving the working efficiency of the workers.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a bolt with not hard up warning, includes bolt (1), and bolt (1) is the integrative structure of spiral shell head and screw rod body constitution, its characterized in that: the middle periphery of the screw rod body is provided with a sliding groove (2) which is in a direction along the screw thread rotation direction, the sliding groove (2) is internally provided with a sliding block (3) which is in sliding fit with the sliding groove, the front surface of the sliding block (3) is fixedly provided with a soft contact block (4), the friction coefficient of the contact block (4) is greater than the dynamic friction coefficient of the sliding block (3), the inner wall of the top end of the sliding groove (2) is provided with a first wire hole (6) which is in a direction towards the axis of the screw rod body, the middle part of the top surface of the screw rod is provided with a vertical second wire hole (7), the first wire hole (6) is communicated with the inside of the second wire hole (7), the top surface of the screw head is provided with a first groove (8), the inside of the first groove (8) is provided with an inverted T-shaped moving block (9) with an opening at the bottom surface, the periphery of the moving block (9, the top of first spring (5) and the side of first recess (8) week inner wall fixed connection, stairstepping second recess (10) have been seted up to the inner chamber of movable block (9), the inner chamber of movable block (9) is equipped with block (11), block (11) and spiral shell head structure as an organic whole, radial thru hole (12) of several have been seted up to the periphery of block (11), the vertical central line collineation of the vertical central line of each thru hole (12) and the spiral shell body, the top of second line hole (7) all communicates with each other with the inside of each thru hole (12), the inside of thru hole (12) is equipped with clamping mechanism respectively, clamping mechanism's bottom surface middle part is equipped with the cotton rope, first line hole (6) is passed to the bottom of cotton rope, the periphery of second line hole (7) and fixed connection contact piece (4).

2. The bolt with the loosening warning function according to claim 1, wherein: the clamping mechanism respectively comprises two inserting rods (13) and two second springs (14), one ends of the two second springs (14) are respectively and fixedly connected with the inner walls of the middle parts of the corresponding second grooves (10), the other ends of the two second springs (14) are respectively and fixedly connected with one ends of the corresponding inserting rods (13), the other ends of the two inserting rods (13) can be respectively in contact fit with the inner walls of the adjacent second grooves (10), the top ends of the cords penetrate through the interiors of the corresponding second springs (14), and the top ends of the cords are respectively and fixedly connected with the peripheries of the two inserting rods (13).

3. The bolt with the looseness warning according to claim 2, wherein: one end of the inserted rod (13) departing from the vertical central line of the bolt is a wedge-shaped surface with an upward inclined surface, and the top surface of the step groove of the second groove (10) is a wedge-shaped surface.

4. The bolt with the loosening warning function according to claim 1, wherein: the first groove (8) is composed of an upper groove (8-1), a middle groove (8-2) and a lower groove (8-3), the middle groove (8-2) is arranged below the upper groove (8-1), the annular lower groove (8-3) is arranged below the middle groove (8-2), the interiors of the upper groove (8-1), the middle groove (8-2) and the lower groove (8-3) are communicated, the inner diameter of the upper groove (8-1) is smaller than that of the middle groove (8-2), and the inner diameter of the middle groove (8-2) is equal to that of the lower groove (8-3).

5. The bolt with the loosening warning function according to claim 1, wherein: and a rubber cap (15) is fixedly arranged on the top surface of the moving block (9).

6. The bolt with the loosening warning function according to claim 1, wherein: the periphery of the moving block (9) is sequentially coated with a plurality of warning rings with different colors.