CN211898358U

CN211898358U - Prestressed supporting anchor bolt

Info

Publication number: CN211898358U
Application number: CN202020309957.5U
Authority: CN
Inventors: 陈华银; 李冬竹
Original assignee: Shanghai Foster Construction Technology Co ltd
Current assignee: Shanghai Foster Construction Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-10
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a prestressing force supports crab-bolt, including the crab-bolt, the crab-bolt is equipped with the screw thread section, a plurality of oil outlets have been seted up in the screw thread section, the recess has been seted up to crab-bolt one end, and has the oil storage pipe through threaded connection in the recess, oil outlet and recess intercommunication, a plurality of bell mouths have been seted up in the oil storage pipe outside, be equipped with the piston rod in the oil storage pipe, be equipped with the grease in the oil storage pipe, the grease is located between the piston of piston rod and the bottom of oil storage pipe. The utility model discloses in, through the oil storage pipe that is equipped with in the screw thread section of crab-bolt, through promoting the piston rod, the grease in the extrusion oil storage pipe enters into the outside of screw thread section through bell mouth and oil outlet, carries out the oil lubrication to its outside screw thread, prevents that the screw thread from being corroded and the screw thread problem of becoming invalid appears, guarantees that the cooperation of nut and crab-bolt is used.

Description

Prestressed supporting anchor bolt

Technical Field

The utility model relates to an crab-bolt technical field especially relates to a prestressing force supports crab-bolt.

Background

The anchor bolt is a general term of all rear anchoring components, has a wide range, is divided into a metal anchor bolt and a non-metal anchor bolt according to different raw materials, and is divided into an expansion type anchor bolt, a hole expanding type anchor bolt, a bonding type anchor bolt, a concrete screw, a shooting nail, a concrete nail and the like according to different anchoring mechanisms.

Present prestressing force supports crab-bolt in the use, firstly, because its surface thread is in the air for a long time, the screw thread corrodes inefficacy easily, to some important connections or mounted position, frequently change the crab-bolt, can influence the fastening nature of connecting, thereby influence wholly, it is comparatively serious, secondly, when the nut on needs dismantlement or the installation crab-bolt, must utilize the spanner rather than mutually supporting, if the spanner does not take or the spanner damages, or the nut outside becomes smooth, when unable cooperation spanner uses, then can't work, the limitation of ordinary nut in the use is too big.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, a prestressed support anchor bolt is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prestressing force supports crab-bolt, includes the crab-bolt, the crab-bolt is equipped with the screw thread section, a plurality of oil outlets have been seted up in the screw thread section, recess has been seted up to crab-bolt one end, and has the oil storage pipe through threaded connection in the recess, oil outlet and recess intercommunication, a plurality of bell mouths have been seted up in the oil storage pipe outside, be equipped with the piston rod in the oil storage pipe, be equipped with the grease in the oil storage pipe, the grease is located between the piston of piston rod and the bottom of oil storage pipe.

As a further description of the above technical solution:

the oil outlet is coaxial with the bell mouth, and is a plurality of oil outlet and bell mouth are the annular and distribute.

As a further description of the above technical solution:

two sealing rings are sleeved on the outer side of the oil storage pipe, and the oil outlet hole and the conical hole are located between the two sealing rings.

As a further description of the above technical solution:

the outer side of the oil storage pipe close to the top end is provided with a small hole, and a bolt is connected in the small hole through threads.

As a further description of the above technical solution:

the nut is connected to the outer side of the thread section through threads, grooves are formed in two sides of the nut, springs are installed at the bottoms of the grooves, the other ends of the springs are connected with connecting columns through elasticity, and through holes are formed in the tops of the connecting columns.

As a further description of the above technical solution:

and rubber pads are arranged at the joint of the connecting column and the grooves on the two sides of the nut.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the oil storage pipe that is equipped with in the screw thread section of crab-bolt, through promoting the piston rod, the grease in the extrusion oil storage pipe enters into the outside of screw thread section through bell mouth and oil outlet, carries out the oil lubrication to its outside screw thread, prevents that the screw thread from being corroded and the screw thread problem of becoming invalid appears, guarantees that the cooperation of nut and crab-bolt is used.

2. The utility model discloses in, the recess tank bottom of nut both sides has the connecting block through spring elastic connection, and the through-hole has been seted up at the top of connecting block, uses the arbitrary column body that can insert in the through-hole, twists reverse two column bodies through the syntropy and rotate round the central line of nut to loosen or screw the nut, solve the staff and not carry spanner or spanner and damage, with perhaps the nut that the nut surface becomes smooth unable cooperation spanner during operation closes the problem soon.

Drawings

Fig. 1 is a schematic front view of a prestressed support anchor bolt according to the present invention;

fig. 2 is a schematic sectional view of a nut of a prestressed support anchor according to the present invention;

FIG. 3 is a schematic sectional view of a threaded section of a prestressed anchor bolt according to the present invention

Fig. 4 is a schematic side view of a prestressed support anchor at a-a according to the present invention.

Illustration of the drawings:

1. a piston rod; 2. an oil storage tube; 201. a tapered hole; 3. a bolt; 4. an anchor bolt; 401. a threaded segment; 402. an oil outlet hole; 5. a nut; 6. a spring; 7. connecting columns; 701. a through hole; 8. a rubber pad; 9. grease; 10. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a prestressing force supports crab-bolt, including crab-bolt 4, crab-bolt 4 is equipped with screw thread section 401, a plurality of oil outlet 402 have been seted up on screw thread section 401, recess is seted up to crab-bolt 4 one end, and there is oil storage pipe 2 through threaded connection in the recess, oil outlet 402 and recess intercommunication, a plurality of bell mouth 201 have been seted up in the 2 outsides of oil storage pipe, be equipped with piston rod 1 in the oil storage pipe 2, be equipped with grease 9 in the oil storage pipe 2, grease 9 is located between piston of piston rod 1 and the bottom of oil storage pipe 2, through promoting piston rod 1, extrusion grease 9 enters into the outside of screw thread section 401 through bell mouth 201 and oil outlet 402, carry out the oil lubrication to its outside screw thread, prevent that the screw thread from corroding and the screw thread problem.

Specifically, as shown in fig. 3 and 4, the oil outlet holes 402 are coaxial with the tapered hole 201, and the plurality of oil outlet holes 402 and the tapered hole 201 are distributed annularly, so that the outer threads of the thread section 401 can be fully contacted with the grease 9, and the threads are fully lubricated.

Specifically, as shown in fig. 3, two sealing rings 10 have been cup jointed to the oil storage pipe 2 outside, a plurality of oil outlet 402 and bell mouth 201 are located between two sealing rings 10, avoid grease 9 to spill over, through promoting piston rod 1, piston rod 1 extrudees grease 9, thereby make grease 9 go out from bell mouth 201, rethread oil outlet 402 goes out, thereby carry out the oil lubrication to screw thread section 401, prevent through grease 9 that the screw thread corrosion on the screw thread section 401 is impaired, guarantee nut 5 and crab-bolt 4's cooperation and use.

Specifically, as shown in fig. 3, the small hole has been seted up in the outside that oil storage pipe 2 is close to the top, and there is bolt 3 through threaded connection in the small hole, at first, draws piston rod 1 to the top of oil storage pipe 2, and secondly, injects grease 9 into oil storage pipe 2 through the small hole, and finally, close bolt 3 soon, avoid in the air admission oil storage pipe 2, cause grease 9 oxidation inefficacy.

Specifically, as shown in fig. 2, the outer side of the threaded section 401 is connected with a nut 5 through threads, two sides of the nut 5 are provided with grooves, the bottom of each groove is provided with a spring 6, the other end of each spring 6 is connected with a connecting column 7 through elasticity, the spring 6 is in a natural state when in use, so that the connecting column 7 is positioned in each groove, the use of the nut 5 when tools are complete is not influenced, the top of the connecting column 7 is provided with a through hole 701, when the outer side of the nut 5 is used for a long time and the surface is smooth or a wrench is not carried, a part of the connecting column 7 is pulled out, the through hole 701 can be seen, any column body capable of being inserted into the through hole 701 is used, the two column bodies are rotated around the central line of the nut 5 through equidirectional twisting, so as to loosen or screw the nut 5, rubber pads 8 are arranged, preventing the connecting post 7 from sliding out of the groove.

The working principle is as follows: after the anchor bolt 4 penetrates through the mounting part, the anchor bolt extends into a wall body, then the nut 5 is screwed, the mounting part is tightly pressed on the wall body, in the using process of the anchor bolt 4, part of threads on the thread section 401 are exposed in the air for a long time and are easy to corrode, the piston rod 1 extrudes the grease 9 by pushing the piston rod 1, so that the grease 9 is discharged from the tapered hole 201 and then discharged through the oil outlet 402, so that the thread section 401 is lubricated, the threads on the thread section 401 are prevented from being corroded and damaged by the grease 9, the matched use of the nut 5 and the anchor bolt 4 is ensured to be influenced, after the grease 9 is used, firstly, the piston rod 1 is pulled to the top end of the oil storage pipe 2, secondly, the grease 9 is injected into the oil storage pipe 2 through a small hole, finally, the bolt 3 is screwed, the air is prevented from entering the oil storage pipe 2, the grease 9 is oxidized and loses efficacy, when the surface becomes smooth or when a wrench is not carried, the nut 5 is loosened or tightened by twisting the two cylindrical bodies in the same direction around the center line of the nut 5 by pulling out a part of the connecting post 7 so that the through hole 701 can be seen, and by using any cylindrical body which can be inserted into the through hole 701.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a prestressing force supports crab-bolt, includes crab-bolt (4), its characterized in that, crab-bolt (4) are equipped with screw thread section (401), a plurality of oil outlet (402) have been seted up on screw thread section (401), recess has been seted up to crab-bolt (4) one end, and has oil storage pipe (2) through threaded connection in the recess, oil outlet (402) and recess intercommunication, a plurality of bell mouths (201) have been seted up in oil storage pipe (2) outside, be equipped with piston rod (1) in oil storage pipe (2), be equipped with grease (9) in oil storage pipe (2), grease (9) are located between the piston of piston rod (1) and the bottom of oil storage pipe (2).

2. The prestressed support anchor according to claim 1, wherein said oil outlet hole (402) is coaxial with said tapered hole (201), and a plurality of said oil outlet holes (402) and tapered holes (201) are annularly arranged.

3. The prestressed support anchor according to claim 1, wherein two sealing rings (10) are sleeved on the outer side of the oil storage tube (2), and a plurality of oil outlets (402) and tapered holes (201) are located between the two sealing rings (10).

4. The prestressed support anchor bolt of claim 1, wherein the oil storage tube (2) has a small hole on its outer side near the top end, and a bolt (3) is screwed into the small hole.

5. The prestressed support anchor bolt of claim 1, wherein a nut (5) is screwed on the outer side of the threaded section (401), a groove is formed on each side of the nut (5), a spring (6) is mounted at the bottom of the groove, the other end of the spring (6) is elastically connected with a connecting column (7), and a through hole (701) is formed in the top of the connecting column (7).

6. The prestressed support anchor as claimed in claim 5, wherein the joint of the connecting column (7) and the grooves on both sides of the nut (5) is provided with rubber pads (8).