CN218266677U

CN218266677U - Dual reinforced (rfd) strengthen mechanical crab-bolt

Info

Publication number: CN218266677U
Application number: CN202222497420.8U
Authority: CN
Inventors: 安聚军
Original assignee: Shenzhen Weijun Industrial Co ltd
Current assignee: Shenzhen Weijun Industrial Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-10
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses a dual reinforced (rfd) enhancement machinery crab-bolt relates to machinery crab-bolt technical field, including first sleeve and second sleeve, first telescopic bottom and the telescopic bottom of second all are equipped with the expansion subassembly, the inside of first sleeve is equipped with the stock subassembly, the stock subassembly includes the stock, the external screw thread, first base, the quarter butt, screw thread post and second base, the middle part cover of stock is established in first telescopic inside, the middle part cover of quarter butt is established in the telescopic inside of second, the top of stock is equipped with the external screw thread, the first base of bottom fixedly connected with of stock, the middle part threaded connection of first base bottom has the screw thread post, the bottom of screw thread post and the top fixed connection of quarter butt, the bottom of quarter butt and the top fixed connection of second base, the beneficial effects of the utility model are that: the mechanical anchor bolt has a double-reinforced structure through the design of the two expansion assemblies, and the stability in use is improved.

Description

Dual reinforced (rfd) strengthen mechanical crab-bolt

Technical Field

The utility model relates to a machinery crab-bolt, in particular to dual reinforced (rfd) enhancement machinery crab-bolt belongs to machinery crab-bolt technical field.

Background

Mechanical anchor bolt, which is mentioned in GB 50367-2013 concrete structure reinforcement design code 16.1.3: the anchor bolt for bearing structure is one back-expanding anchor bolt with mechanical locking effect and is divided into self-expanding bottom, mold expanding bottom and adhering-mold expanding bottom based on its different structure modes.

The self-locking type self-undercut mechanical anchor bolt disclosed by the application number of CN201520680456.7 is a mature technology, and comprises a screw rod and a sleeve, wherein the head end of the screw rod is sequentially sleeved with a circular gasket and a nut, the head end of the screw rod also comprises a cutting head and an anti-slip nut, the tail end of the screw rod is provided with N clamp spring type anti-slip heads, and N is more than or equal to 4; the anti-slip nut is internally provided with a bulge matched with the anti-slip head and is mutually meshed with the anti-slip head, and the cutting head is arranged at the upper part of the anti-slip nut.

1) The mechanical anchor bolt only has a heavy reinforced structure, and the stability is not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dual reinforced (rfd) strengthen mechanical crab-bolt to solve a heavy reinforced structure who proposes in the above-mentioned background art, the not enough problem of stability.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a dual reinforced (rfd) enhancement machinery crab-bolt, includes first sleeve and second sleeve, first telescopic bottom and the telescopic bottom of second all are equipped with the expansion subassembly, first telescopic inside is equipped with the stock subassembly, the stock subassembly includes stock, external screw thread, first base, quarter butt, screw thread post and second base, the middle part cover of stock is established in first telescopic inside, the middle part cover of quarter butt is established in the telescopic inside of second, the top of stock is equipped with the external screw thread, the first base of bottom fixedly connected with of stock, the middle part threaded connection of first base bottom has the screw thread post, the bottom of screw thread post and the top fixed connection of quarter butt, the bottom of quarter butt and the top fixed connection of second base.

Preferably, the two expansion assemblies comprise two connecting rings, eight outer expansion pieces and eight quarter rings, the top ends of the two connecting rings are fixedly connected with the bottom end of the first sleeve and the bottom end of the second sleeve respectively, the bottom ends of the two connecting rings are fixedly connected with the four outer expansion pieces, and the bottom ends of the eight outer expansion pieces are fixedly connected with the quarter rings.

Preferably, the top of stock alternates respectively and is connected with circular gasket and spring washer, the top threaded connection of stock has the nut, the inner wall of nut is equipped with the internal thread.

Preferably, the outer sides of the eight outer expansion pieces are all in an inclined plane shape, the eight outer expansion pieces and the eight quarter rings are arranged in an annular shape, and the distance between the eight outer expansion pieces is consistent with the distance between the eight quarter rings.

Preferably, the diameter of the long rod is consistent with that of the short rod, the inner diameter of the first sleeve is consistent with that of the second sleeve, and the outer side of the long rod and the outer side of the short rod are respectively attached to the inner wall of the first sleeve and the inner wall of the second sleeve.

Preferably, the first base and the second base are both circular truncated cone-shaped, and the cross section is trapezoidal.

Preferably, the inner diameter of the circular gasket and the inner diameter of the spring washer are both larger than the maximum outer diameter of the external thread.

Compared with the prior art, the utility model provides a pair of dual reinforced (rfd) enhancement machinery crab-bolt has following beneficial effect:

1. the mechanical anchor bolt has a double-reinforced structure through the design of the two expansion assemblies, and the stability in use is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the expansion assembly of the present invention;

fig. 4 is a schematic structural view of the anchor rod assembly of the present invention;

fig. 5 is a schematic sectional view of the present invention.

In the figure: 1. a first sleeve; 2. an expansion assembly; 201. a connecting ring; 202. expanding the sheet outwards; 203. a quarter ring; 3. a second sleeve; 4. an anchor assembly; 401. a long rod; 402. an external thread; 403. a first base; 404. a short bar; 405. a threaded post; 406. a second base; 5. a circular gasket; 6. a spring washer; 7. a nut; 8. and (4) internal threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

please refer to fig. 1-5, the utility model provides a dual reinforced mechanical anchor bolt, including first sleeve 1 and second sleeve 3, the bottom of first sleeve 1 and the bottom of second sleeve 3 all are equipped with expansion subassembly 2, the inside of first sleeve 1 is equipped with stock subassembly 4, stock subassembly 4 includes stock 401, external screw thread 402, first base 403, quarter butt 404, threaded post 405 and second base 406, the middle part cover of stock 401 is established in the inside of first sleeve 1, the middle part cover of quarter butt 404 is established in the inside of second sleeve 3, the top of stock 401 is equipped with external screw thread 402, the bottom of stock 401 is fixedly connected with first base 403, the middle part threaded connection of first base 403 bottom has threaded post 405, the bottom of threaded post 405 and the top fixed connection of quarter butt 404, the bottom of quarter butt 404 and the top fixed connection of second base 406;

the top of the long rod 401 is respectively connected with a round gasket 5 and a spring washer 6 in an inserting manner, the top end of the long rod 401 is connected with a nut 7 in a threaded manner, and the inner wall of the nut 7 is provided with an internal thread 8;

the diameter of the long rod 401 is consistent with that of the short rod 404, the inner diameter of the first sleeve 1 is consistent with that of the second sleeve 3, and the outer side of the long rod 401 and the outer side of the short rod 404 are respectively attached to the inner wall of the first sleeve 1 and the inner wall of the second sleeve 3;

the first base 403 and the second base 406 are both truncated cone-shaped, and the cross section is trapezoidal;

the inner diameter of the circular gasket 5 and the inner diameter of the spring washer 6 are both larger than the maximum outer diameter of the external thread 402;

specifically, as shown in fig. 1, fig. 2, fig. 4, fig. 5, at first establish quarter butt 404 cover in the inside of second sleeve 3, secondly establish stock 401 cover in the inside of first sleeve 1, establish the bottom and the screw thread post 405 threaded connection of first base 403 after that, alternate the middle part of circular gasket 5 with the top of stock 401 and be connected, final circular gasket 5 is spacing at the top of first sleeve 1, alternate the middle part of spring washer 6 with the top of stock 401 and be connected, final spring washer 6 is spacing at the middle part on circular gasket 5 top, after that, the top threaded connection of nut 7 and stock 401, final nut 7 is spacing at the top of spring washer 6, screw up nut 7, guarantee that each structure is not hard up.

Example 2:

the two expansion components 2 comprise two connecting rings 201, eight outer expansion pieces 202 and eight quarter rings 203, the top ends of the two connecting rings 201 are respectively and fixedly connected with the bottom ends of the first sleeve 1 and the second sleeve 3, the bottom ends of the two connecting rings 201 are respectively and fixedly connected with the four outer expansion pieces 202, and the bottom ends of the eight outer expansion pieces 202 are respectively and fixedly connected with the quarter rings 203;

the outer sides of the eight outer expanding pieces 202 are all in the shape of an inclined plane, the eight outer expanding pieces 202 and the eight quarter rings 203 are all arranged in an annular shape, and the distance between the eight outer expanding pieces 202 is consistent with the distance between the eight quarter rings 203;

specifically, as shown in fig. 1, fig. 2, fig. 3, and fig. 5, first, the first base 403 is lifted upwards, since the first base 403 and the second base 406 are both truncated cone-shaped, the inclined surfaces thereof will press the bottom ends of the eight quarter-rings 203, and through continuous displacement, the eight outer expansion pieces 202 are forced to be expanded and deformed, so as to fix the mechanical anchor bolt in the borehole, and finally the two expansion assemblies 2 form a double-reinforced structure in the borehole.

The working principle is as follows: when specifically using, the utility model relates to a dual reinforced (rfd) enhancement machinery crab-bolt, at first beat the drilling that needs installation machinery crab-bolt, secondly establish quarter butt 404 cover in the inside of second sleeve 3, establish the inside at first sleeve 1 with stock 401 cover, pass through screw post 405 and quarter butt 404 threaded connection with first base 403, respectively with the middle part of circular gasket 5, the middle part of spring washer 6 alternates with the top of stock 401 and is connected, after that with the top threaded connection of nut 7 and stock 401, finally spacing at the top of spring washer 6, screw up nut 7, guarantee that each structure is not hard up, take off nut 7 after that, spring washer 6 and circular gasket 5, the installation needs fixed equipment, after with nut 7, spring washer 6 and circular gasket 5 are installed, screw nut 7, stock 401 can the lifting this moment, because stock 401 and quarter butt 404 threaded connection, first base 403 and second base 406 can make eight outer expanding pieces 202 in two expansion subassemblies 2 take place outer expanding deformation respectively, eight outer expanding piece 202 can form dual fixed drilling structure behind the extreme position 403.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dual reinforced (rfd) reinforcement machinery crab-bolt, includes first sleeve (1) and second sleeve (3), a serial communication port, the bottom of first sleeve (1) and the bottom of second sleeve (3) all are equipped with expansion subassembly (2), the inside of first sleeve (1) is equipped with stock subassembly (4), stock subassembly (4) are including stock (401), external screw thread (402), first base (403), quarter butt (404), screw thread post (405) and second base (406), the inside at first sleeve (1) is established to the middle part cover of stock (401), the inside at second sleeve (3) is established to the middle part cover of quarter butt (404), the top of stock (401) is equipped with external screw thread (402), the bottom fixedly connected with first base (403) of stock (401), the middle part threaded connection of first base (403) bottom has screw thread post (405), the bottom and the top fixed connection of quarter butt (404), the bottom and the top fixed connection of second base (406) of quarter butt (404).

2. A dual reinforcement reinforced mechanical anchor as set forth in claim 1, wherein: two expansion subassembly (2) include two go-between (201), eight expand piece (202) and eight quarter ring (203) outward, two the top of go-between (201) respectively with the bottom of first sleeve (1) and the bottom fixed connection of second sleeve (3), two the equal fixedly connected with in bottom of go-between (201) expands piece (202), eight outward the equal fixedly connected with quarter ring (203) in bottom of expanding piece (202).

3. A dual reinforcement reinforced mechanical anchor as set forth in claim 1, wherein: the top of stock (401) alternates respectively and is connected with circular gasket (5) and spring washer (6), the top threaded connection of stock (401) has nut (7), the inner wall of nut (7) is equipped with internal thread (8).

4. A dual reinforcement reinforced mechanical anchor as set forth in claim 2, wherein: the outer sides of the eight outward expansion pieces (202) are all in an inclined plane shape, the eight outward expansion pieces (202) and the eight quarter rings (203) are all arranged in an annular shape, and the distance between the eight outward expansion pieces (202) is consistent with the distance between the eight quarter rings (203).

5. A dual reinforcement reinforced mechanical anchor as set forth in claim 1, wherein: the diameter of stock (401) is unanimous with the diameter of quarter butt (404), the internal diameter of first sleeve (1) is unanimous with the internal diameter of second sleeve (3), the outside of stock (401) and the outside of quarter butt (404) are laminated with the inner wall of first sleeve (1) and the inner wall of second sleeve (3) respectively.

6. A dual reinforcement reinforced mechanical anchor as set forth in claim 1, wherein: the first base (403) and the second base (406) are both in a circular truncated cone shape, and the cross section of the first base and the cross section of the second base are trapezoidal.

7. A dual reinforcement reinforced mechanical anchor as set forth in claim 3, wherein: the inner diameter of the circular gasket (5) and the inner diameter of the spring washer (6) are both larger than the maximum outer diameter of the external thread (402).