CN216407411U

CN216407411U - Waterproof expansion bolt

Info

Publication number: CN216407411U
Application number: CN202122519046.2U
Authority: CN
Inventors: 冯强; 陈龙发; 张永法
Original assignee: Nanjing Huiqiang New Energy Technology Co ltd
Current assignee: Nanjing Huiqiang New Energy Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-29
Anticipated expiration: 2031-10-19

Abstract

The utility model relates to a waterproof expansion bolt, it relates to the expansion bolt field, and it includes the shell, be equipped with the mounting that is used for fixed expansion bolt on the shell, be equipped with the cavity in the shell, be equipped with the extruded article that inserts the cavity and extrude the mounting on the shell. This application has the staff and punches the back on the wall, in earlier the shell insert hole, later insert the extruded article in the cavity extrusion spare with the mounting in pushing into the wall to accomplish expansion bolts fixed in the wall, dismantle the back from expansion bolts at needs fixed article, can directly extract the extruded article from the shell in, thereby can used repeatedly the extruded article, and then can avoid the effect to the waste of resource.

Description

Waterproof expansion bolt

Technical Field

The application relates to an expansion bolt, especially relates to a waterproof expansion bolt.

Background

The expansion bolt is generally used for fastening protective guards, rain canopies, air conditioners and the like on materials such as cement, bricks and the like, and is composed of a nut, a screw and an iron sheet cylinder.

The iron sheet cylinder is plugged into a hole drilled on the wall, the screw is inserted into the iron sheet cylinder, the screw is pulled outwards by the nut, the iron sheet cylinder is expanded and tightly clamped on the wall, so that the fixing effect is achieved, and then an object to be fixed can be fixed on the part of the expansion bolt exposed out of the wall.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: after the expansion bolts are fixed, the iron sheet cylinder deforms, and after the objects to be fixed are disassembled, the screws of the expansion bolts extend out of the wall body and cannot be taken out of the wall body, so that resource waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to improve the required fixed article and dismantle the back from the expansion bolts on the wall, expansion bolts's screw rod can't be taken out from the wall body to cause the problem to the waste of resource, this application provides a waterproof expansion bolts.

The application provides a waterproof expansion bolt adopts following technical scheme:

the utility model provides a waterproof expansion bolt, includes the shell, be equipped with the mounting that is used for fixed expansion bolt on the shell, be equipped with the cavity in the shell, be equipped with the extruded article that inserts the cavity and extrude the mounting on the shell.

Through adopting above-mentioned technical scheme, the staff punches the back on the wall, earlier in the shell insert hole, in the back inserts the extruded article cavity, the extruded article pushes away the mounting in the wall to accomplish expansion bolts's fixing in the wall, dismantle the back at the article that needs to be fixed from expansion bolts, can directly extract the extruded article from the shell, realize extruded article's used repeatedly, and then can avoid the waste to the resource.

Optionally, the mounting includes the fixed block, the fixed block is kept away from the one end of cavity is equipped with the fixed head that can insert the wall body, the fixed block is close to the one end of cavity is equipped with the ejector pad, be equipped with on the ejector pad and supply extruded promotion inclined plane of extruded, be equipped with on the shell and supply fixed block male through-hole, the through-hole axis is perpendicular with the shell axis.

Through adopting above-mentioned technical scheme, insert the cavity when the extruded piece, the extruded piece promotes the promotion inclined plane on the fixed block to make the mounting remove in the through-hole, the fixed head inserts the wall body, thereby can accomplish expansion bolts's fixing.

Optionally, the extrusion piece includes a screw rod, one end of the screw rod is provided with a screw head for pushing the push block, and the screw rod is in threaded connection with the inner side wall of the shell.

Through adopting above-mentioned technical scheme, when needs fix expansion bolts in the wall body, insert the cavity with the screw rod earlier, in the spiral shell head promoted the ejector pad and makes the fixed head insert the wall, later screw up the screw rod on the shell to fix the bolt on the wall body, when needs pull down the screw rod, only need to twist the screw rod and pull out the cavity after moving, thereby repeatedly usable screw rod, and then can avoid the waste to the resource.

Optionally, the fixing part comprises a connecting block, a connector is arranged at one end of the connecting block, which is far away from the cavity, an extrusion block is arranged at one end of the connecting block, which is close to the cavity, an extrusion inclined surface for extrusion of an extrusion part is arranged on the extrusion block, a connecting hole for inserting the connecting block is arranged on the shell, and the axis of the connecting hole is perpendicular to the axis of the shell; the extrusion piece comprises an extrusion rod, and a convex block used for tightly abutting against the extrusion block is arranged on the extrusion rod.

Through adopting above-mentioned technical scheme, when needs fix expansion bolts in the wall body, insert the hole of beating in advance on the wall body with the shell earlier, later insert the extrusion stem in the cavity, when the extruded article is in fixed position, rotate the extrusion stem, lug on the extrusion stem promotes the extrusion inclined plane on the extrusion block, thereby drive extrusion head and insert the wall body, thereby can fix expansion bolts in the wall body, dismantle the back when required fixed article from fixing bolt, only need twist the extruded article, make the lug break away from the extrusion block, later extract the extruded article the wall body can, thereby can avoid the waste to the resource.

Optionally, a limiting block is arranged on the connecting block, a limiting groove is arranged on the hole wall of the connecting hole, and a sliding space for the limiting block to move is reserved between the groove wall of the limiting groove and the limiting block.

Through adopting above-mentioned technical scheme, the stopper can only carry out spacing removal in the spacing groove to can inject the connecting block on the shell, thereby can prevent that the mounting on the shell from losing because of removing.

Optionally, a plurality of springs are arranged on the side wall of one side, close to the cavity, of the limiting groove, one end of each spring is connected with the side wall of the limiting groove, and the other end of each spring is connected with the limiting block.

Through adopting above-mentioned technical scheme, when lug extrusion piece, the extrusion piece drives the connecting block to drive the stopper on the connecting block and remove, thereby make the spring be in tensile state, when extracting the pole, the spring shrink, the stopper drives the connecting block and resumes original position, thereby can extract the shell from the wall body in, thereby can used repeatedly the extrusion pole, and then can avoid the waste of resource.

Optionally, a plurality of placing blocks are arranged on the extrusion rod, the placing blocks are arranged along the circumferential direction of the extrusion rod, a plurality of placing grooves for the placing blocks to insert are formed in the shell, each placing groove is provided with a rotating groove close to the direction in which the bolt is inserted into the wall body, the rotating grooves are arranged along the circumferential direction of the shell, and the placing grooves are communicated with the rotating grooves.

Through adopting above-mentioned technical scheme, when needs fixing bolt, will place the piece and align with the standing groove, later insert the stripper bar cavity, place the piece this moment and remove to the direction that the stripper bar removed along the standing groove, when reacing fixed position, rotate the stripper bar, place the piece and rotate along the swivelling chute to fix the stripper bar on the shell, thereby the convenience is dismantled the stripper bar from the shell after needs fixed article are dismantled, and then has avoided the waste of resource.

Optionally, a nut is arranged on the screw rod, the nut is in threaded connection with the screw rod, a waterproof pad is arranged on the shell, one side of the waterproof pad is tightly abutted to the nut, and the other side of the waterproof pad is tightly abutted to the shell.

Through adopting above-mentioned technical scheme, when accomplishing fixed between screw rod and shell, twist the nut and stretch out the part outside the wall body at the screw rod and move to support tight waterproof pad, make waterproof pad support tightly on the shell, and then can prevent that moisture from getting into the cavity, and then can prevent that screw rod and fixed block on the shell from rustting or even rotting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after a worker punches a hole in the wall, the shell is inserted into the hole, then the extrusion piece is inserted into the extrusion piece in the cavity, and the fixing piece is pushed into the wall body, so that the expansion bolt is fixed in the wall body;

2. the limiting block is arranged in the limiting groove and can only move in the limiting groove, so that the connecting block can be limited on the shell, the fixing piece can be prevented from falling or even losing due to the fact that the shell is moved, and further waste of resources is avoided;

3. after the threaded connection of completion screw rod and shell, continue to screw up the nut, support the waterproof pad until the nut, when the nut supports tight waterproof pad, the waterproof pad also will support tight shell, and then can prevent that moisture from getting into the cavity, can avoid screw rod and fixed block to rust or even decay to can reuse, and then avoided the waste of resource.

Drawings

Fig. 1 is a schematic structural view of a waterproof expansion bolt according to embodiment 1 of the present application.

Fig. 2 is a schematic sectional view along the direction a-a in fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of a waterproof expansion bolt according to embodiment 2 of the present application.

Fig. 5 is an exploded view of the screw and housing of fig. 4.

Fig. 6 is an enlarged view of a portion B in fig. 5.

Fig. 7 is a schematic sectional view along the direction B-B in fig. 4.

Fig. 8 is an enlarged view of the portion C in fig. 7.

Description of reference numerals: 1. a housing; 10. a cavity; 11. a through hole; 12. a placement groove; 13. a rotating tank; 14. a limiting groove; 140. a spring; 15. connecting holes; 2. a fixing member; 20. a fixed block; 21. a fixed head; 22. a push block; 220. pushing the inclined plane; 23. extruding the block; 230. extruding the inclined plane; 24. connecting blocks; 25. a connector; 26. a limiting block; 3. an extrusion; 30. a screw; 31. a screw head; 32. a nut; 33. a waterproof pad; 34. an extrusion stem; 340. a bump; 341. and placing the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses waterproof expansion bolt.

Example 1

Referring to fig. 1 and 2, a waterproof expansion bolt includes a housing 1, the cross section of the housing 1 is circular, a fixing member 2 for fixing the expansion bolt is provided on the housing 1, a cavity 10 is provided in the housing 1, and an extruding member 3 which is inserted into the cavity 10 and extrudes the fixing member 2 is provided on the housing 1; the staff punches the back on the wall, with 1 insert hole of shell, later insert cavity 10 with extruded article 3, extruded article 3 promotes mounting 2 at the removal in-process, make mounting 2 insert the wall body, when extruded article 3 accomplishes with shell 1 and is connected, extruded article 3 supports tightly with mounting 2, when no longer needing to use expansion bolts, can extract extruded article 3 from cavity 10 in, thereby can realize extruded article 3's used repeatedly, and then can avoid the waste to the resource.

Referring to fig. 2 and 3, the extrusion member 3 includes a screw 30, an axis of the screw 30 coincides with an axis of the housing 1, a thread is disposed at an end of the screw 30 close to the wall, a screw head 31 for pushing the fixing member 2 is disposed at an end of the screw 30 far from the wall, the screw head 31 is a cone, the screw 30 and the screw head 31 are integrally formed, the screw 30 is in threaded connection with the housing 1, a part of the screw 30 is exposed outside the wall, a nut 32 is in threaded connection with one side of the screw 30 exposed outside the wall, the nut 32 is in threaded connection with the screw 30, a waterproof pad 33 is disposed on the housing 1, one side of the waterproof pad 33 is tightly abutted to the nut 32, and the other side of the waterproof pad 33 is tightly abutted to the housing 1.

The fixing part 2 comprises a fixing block 20, the fixing block 20 is a cylinder, the axis of the fixing block 20 is perpendicular to the axis of the screw rod 30, one end, far away from the screw rod 30, of the fixing block 20 is provided with a fixing head 21 capable of being inserted into a wall body, the fixing head 21 is a cone, one end, close to the screw rod 30, of the fixing block 20 is provided with a push block 22, the push block 22 is in a circular truncated cone shape, the push block 22 is in contact with the screw head 31, the contact surface is a push inclined plane 220, the axis of the push block 22, the axis of the fixing block 20 is overlapped with the axis of the fixing head 21, the push block 22, the fixing block 20 and the fixing head 21 are integrally formed, a through hole 11 capable of being inserted into the fixing block 20 is formed in the shell 1, and the axis of the through hole 11 is overlapped with the axis of the fixing head 21.

When the expansion bolt needs to be fixed, the shell 1 is inserted into a hole which is punched in advance on the wall body, the screw 30 is inserted into the shell 1, during the insertion of the screw 30 into the casing 1, the head 31 presses the push block 22, thus pushing the fixing head 21 into the wall, when the screw portion of the screw 30 is brought into contact with the screw portion of the housing 1, the screw 30 is screwed with the housing 1, thereby completing the fixing of the expansion bolt in the wall, when the screw head 31 abuts against the wall, the screw cap 32 on the screw rod 30 is screwed, the screw cap 32 abuts against the waterproof pad 33, the waterproof pad 33 abuts against the shell 1 to achieve the waterproof effect, the part of the screw rod 30 exposed out of the wall can be provided with the object to be fixed, when the article to be fixed is not used any more and is detached, the screw 30 is screwed until the screw 30 is separated from the shell 1, so that the screw 30 is recycled, and the waste of resources can be avoided.

The implementation principle of the embodiment 1 is as follows: extruded piece 3 inserts wall inner casing 1, extruded piece 3 extrusion mounting 2 to make mounting 2 insert in the wall, when needs are dismantled, only need extract extruded piece 3, thereby realize the reuse to extruded piece 3, and then can avoid the waste to the resource.

Example 2

Referring to fig. 4 and 5, the present embodiment differs from embodiment 1 in that the extrusion member 3 includes an extrusion rod 34, and the axis of the extrusion rod 34 coincides with the axis of the housing 1.

Referring to fig. 5 and 6, be equipped with on extruded piece 3 lateral wall and be used for supporting the lug 340 of tight mounting 2, be equipped with four on the squeeze bar 34 and place piece 341, it is the rectangle to place piece 341 cross-section, and four are placed piece 341 along squeeze bar 34 circumference equipartition, be equipped with four on the inside wall of shell 1 and supply to place piece 341 male standing groove 12, be equipped with on the inside wall of shell 1 and supply to place piece 341 rotation removal's swivelling chute 13, swivelling chute 13 sets up along the circumference of shell 1, swivelling chute 13 and standing groove 12 intercommunication set up.

When the expansion bolt needs to be fixed, each placing block 341 is placed in the placing groove 12, the extruding rod 34 is inserted into the shell 1, when the placing block 341 cannot move along the axis of the extruding rod 34 any more, the extruding rod 34 is rotated, the placing block 341 rotates in the rotating groove 13, when the placing block 341 does not move any more, the convex block 340 already supports the fixing part 2 tightly, the fixing part 2 is inserted into the wall, when the extruding rod 34 needs to be pulled out, the placing block 341 needs to be rotated to the placing groove 12 from the rotating groove 13, and the extruding rod 34 is pulled out from the shell 1, so that the repeated utilization of the extruding rod 34 can be realized, and the waste of resources can be avoided.

Referring to fig. 7 and 8, the fixing member 2 includes a connecting block 24, the cross section of the connecting block 24 is circular, one end of the connecting block 24, which is far away from the extrusion rod 34, is provided with a connecting head 25, the connecting head 25 is conical, one end of the connecting block 24, which is close to the extrusion rod 34, is provided with an extrusion block 23, a space for the protrusion 340 to be inserted is reserved between adjacent extrusion blocks 23, the extrusion block 23 is in a circular truncated cone shape, the extrusion block 23 is provided with an extrusion inclined plane 230 for the protrusion 340 to be extruded, the protrusion 340 abuts against the extrusion block 23, the housing 1 is provided with a connecting hole 15 for the connecting block 24 to be inserted, and the axis of the connecting hole 15 is perpendicular to the axis of the housing 1.

The connecting block 24 is provided with a limiting block 26, the cross section of the limiting block 26 is rectangular, the wall of the connecting hole 15 is provided with a limiting groove 14, a sliding space for the limiting block 26 to move is reserved between the groove wall of the limiting groove 14 and the limiting block 26, the groove wall of the limiting groove 14 close to one side of the extrusion rod 34 is provided with a spring 140, one end of the spring 140 is connected with the groove wall of the limiting groove 14, and the other end of the spring is connected with the limiting block 26.

Connecting block 24 removes to the wall body direction when lug 340 extrudees extrusion piece 23, drive stopper 26 and remove, extension spring 140, when extracting shell 1 with screw rod 30, lug 340 no longer supports tight extrusion piece 23, spring 140 contracts, drive stopper 26 and remove to the direction of being close to shell 1's inside wall, thereby drive connecting block 24 and remove, thereby can withdraw connector 25 in the wall body, thereby can extract shell 1 from the wall body in, thereby can reuse shell 1, and then can avoid the waste of resource.

The implementation principle of the embodiment 2 is as follows: when the expansion bolt needs to be fixed, the placing block 341 enters the placing groove 12, the extrusion rod 34 is inserted into the shell 1, the extrusion rod 34 is rotated to a position where the extrusion rod can not rotate any more, the bump 340 supports against the extrusion block 23, the connecting block 24 moves towards the wall body, the limiting block 26 moves simultaneously, the spring 140 is driven to stretch, the connecting head 25 is inserted into the wall body, when the expansion bolt needs to be disassembled, the extrusion rod 34 is pulled out after the extrusion rod 34 rotates reversely, the bump 340 is separated from the extrusion block 23, the spring 140 contracts, the connecting block 24 moves towards the inner side wall direction of the shell 1, the connecting head 25 is pulled out from the wall body, the extrusion rod 34 and the shell 1 can be reused, and further the waste of resources can be avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A waterproof expansion bolt is characterized in that: including shell (1), be equipped with mounting (2) that are used for fixed expansion bolts on shell (1), be equipped with cavity (10) in shell (1), be equipped with on shell (1) and insert cavity (10) and extrude extruded article (3) of mounting (2), mounting (2) are including connecting block (24), connecting block (24) are kept away from the one end of cavity (10) is equipped with connector (25), connecting block (24) are close to the one end of cavity (10) is equipped with extrusion piece (23), be equipped with extrusion inclined plane (230) that can supply extruded article (3) to extrude on extrusion piece (23), be equipped with on shell (1) and supply connecting hole (15) that connecting block (24) inserted, connecting hole (15) axis with shell (1) axis is perpendicular, extruded article (3) are including extrusion pole (34), the extrusion device is characterized in that a bump (340) used for tightly abutting against the extrusion block (23) is arranged on the extrusion rod (34), a plurality of placing blocks (341) are arranged on the extrusion rod (34), the placing blocks (341) are circumferentially arranged along the extrusion rod (34), a plurality of placing grooves (12) for the placing blocks (341) to be inserted are formed in the shell (1), each placing groove (12) is provided with a rotating groove (13) close to the direction of inserting a bolt into a wall body, the rotating grooves (13) are circumferentially arranged along the shell (1), and the placing grooves (12) are communicated with the rotating grooves (13).

2. A waterproof expansion bolt according to claim 1, wherein: be equipped with stopper (26) on connecting block (24), be equipped with spacing groove (14) on connecting hole (15) pore wall, spacing groove (14) cell wall with leave the confession between stopper (26) the space that slides that stopper (26) removed.

3. A waterproof expansion bolt according to claim 2, wherein: the side wall of one side, close to the cavity (10), in the limiting groove (14) is provided with a plurality of springs (140), one end of each spring (140) is connected with the side wall of the limiting groove (14), and the other end of each spring (140) is connected with the limiting block (26).