CN215634231U

CN215634231U - Metal expansion bolt

Info

Publication number: CN215634231U
Application number: CN202122501122.7U
Authority: CN
Inventors: 刘松云
Original assignee: Tianjin Junsheng Futeng Machinery Co ltd
Current assignee: Tianjin Junsheng Futeng Machinery Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-25
Anticipated expiration: 2031-10-18

Abstract

The utility model provides a metal expansion bolt, which relates to the technical field of expansion bolts and comprises a countersunk head bolt, wherein an expansion pipe is sleeved on the outer surface of the countersunk head bolt, and a shell is sleeved on the outer surface of the expansion pipe. According to the utility model, the countersunk head of the countersunk bolt is pushed to move towards the interior of the shell, the top plate moves in the shell, the sliding rod moves out of the interior of the shell, the first spring in the shell contracts under the influence of the external acting force, so that the expansion bolt can move by virtue of the elasticity of the first spring when moving out of the shell, the work load of related workers is reduced, the push plate is pushed to move, the top plate drives the countersunk bolt to move by virtue of the acting force and the thrust when the shape of the first spring is restored, the expansion bolt moves towards the interior of the drill hole, the expansion bolt has the characteristic of convenience in operation when being inserted into the interior of the drill hole, and the work efficiency of the insertion work of the expansion bolt is improved.

Description

Metal expansion bolt

Technical Field

The utility model relates to the technical field of expansion bolts, in particular to a metal expansion bolt.

Background

When the expansion bolt is inserted into a drill hole which is drilled by an electric drill in advance, the expansion bolt is usually forcibly knocked by a related worker by using a hammer to be inserted into the drill hole, however, the worker needs to knock the expansion bolt by using a considerable force when knocking by using the hammer, the operation mode is very easy to increase the work load of the worker when knocking the expansion bolt with a large number of numbers, and the work efficiency of the expansion bolt when inserting the drill hole is very easy to influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, the expansion bolt can be inserted into a drilled hole by using a device which can insert the expansion bolt into the drilled hole by means of the elastic acting force of a first spring and the slight thrust of a worker, so that the expansion bolt has the characteristic of convenience in operation when being inserted, the workload of the worker is reduced, and the work efficiency of inserting the expansion bolt is improved.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a metal expansion bolt, includes the countersunk head bolt, the expand tube has been cup jointed to the surface of countersunk head bolt, the shell has been cup jointed to the surface of expand tube, the right side of shell slides and runs through the bracing piece, the right side of shell slides and runs through the slide bar, the right-hand member fixedly connected with push pedal of bracing piece, the right side of push pedal is glued and is equipped with the slipmat, the flat packing ring of right side fixedly connected with of expand tube, the right side of flat packing ring is provided with the spring pad, the surface screw thread of countersunk head bolt has cup jointed the nut, the left end fixedly connected with roof of slide bar, the surface of slide bar has cup jointed first spring, the left end fixedly connected with spacing dish of bracing piece.

Preferably, the right side fixedly connected with connecting block of shell, the positive surface swing joint of connecting block has the pull button, the rear surface fixedly connected with connecting rod of pull button, the second spring has been cup jointed to the surface of connecting rod, the rear end fixedly connected with limiting plate of connecting rod, the rear surface fixedly connected with kelly of limiting plate.

Preferably, the left side of the nut is in contact with the spring pad, and the right end of the countersunk head bolt is in contact with the left side of the top plate.

Preferably, the left side of the shell is provided with a sliding groove matched with the top plate, the right end of the first spring is welded on the right side of the inner wall of the sliding groove, and the left end of the first spring is welded on the right side of the top plate.

Preferably, the right end of the sliding rod is fixedly connected to the left side of the push plate, and a first limiting groove matched with the limiting disc is formed in the shell.

Preferably, the rear end of connecting rod slides through the positive surface of connecting block, the second spacing groove of being fit for with the spacing board is seted up to the inside of connecting block, the front end welding of second spring is on the positive surface of second spacing inslot wall, and the rear end welding of second spring is on the positive surface of limiting plate.

Preferably, the rear end of the clamping rod penetrates through the rear surface of the inner wall of the second limiting groove in the connecting block in a sliding mode, and a clamping hole matched with the clamping rod is formed in the outer surface of the sliding rod.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the countersunk head of the countersunk head bolt is pushed to move towards the interior of the shell, the top plate moves in the shell, the sliding rod moves out of the shell, the first spring in the shell contracts under the influence of external acting force, so that the expansion bolt can move by virtue of the elasticity of the first spring when moving out of the shell, the work burden of related workers is reduced, the countersunk head of the countersunk head bolt is inserted into the interior of a drilled hole, the push plate is pushed to move, the top plate drives the countersunk head bolt to move by virtue of the acting force and the pushing force when the shape of the first spring is restored, the expansion bolt moves towards the interior of the drilled hole, the expansion bolt has the characteristic of convenience in operation when being inserted into the interior of the drilled hole, and the work efficiency of the expansion bolt insertion work is improved.

2. According to the expansion bolt drilling device, the pull button is pulled to drive the connecting rod to move, the shape of a second spring in the connecting block is affected by external acting force to contract, the clamping rod contracts towards the inside of the connecting block, the pull button which is kept pulled is loosened after the expansion bolt is inserted into an inner sliding rod of the shell and moves, the clamping rod moves out of the inside of the connecting block by means of the acting force generated when the second spring restores, the clamping rod is inserted into the inside of the sliding rod, the sliding rod is fixed by the clamping rod, the expansion bolt is prevented from moving out of the inside of the shell before being inserted into a drilled hole, and the time wasted before the expansion bolt is inserted is further saved.

Drawings

Fig. 1 is a perspective view of a metal expansion bolt according to the present invention;

FIG. 2 is a cross-sectional perspective view of the outer shell of a metal expansion bolt according to the present invention;

FIG. 3 is a cross-sectional perspective view of a connection block of a metal expansion bolt according to the present invention;

fig. 4 is an expanded perspective view of a metal expansion bolt according to the present invention.

Illustration of the drawings: 1. a countersunk bolt; 2. expanding the tube; 3. a housing; 4. a support bar; 5. a slide bar; 6. pushing the plate; 7. a non-slip mat; 8. connecting blocks; 9. pulling the button; 10. a flat washer; 11. a spring pad; 12. a nut; 13. a top plate; 14. a first spring; 15. a limiting disc; 16. a connecting rod; 17. a second spring; 18. a limiting plate; 19. and (5) clamping the rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 4, the present invention provides a metal expansion bolt, which includes a countersunk bolt 1, an expansion pipe 2 is sleeved on an outer surface of the countersunk bolt 1, an outer shell 3 is sleeved on an outer surface of the expansion pipe 2, a sliding groove adapted to a top plate 13 is formed in a left side of the outer shell 3, a right end of a first spring 14 is welded on a right side of an inner wall of the sliding groove, a left end of the first spring 14 is welded on a right side of the top plate 13, a support rod 4 is slidably penetrated through a right side of the outer shell 3, a slide rod 5 is slidably penetrated through a right side of the outer shell 3, a right end of the slide rod 5 is fixedly connected to a left side of a push plate 6, a first limit groove adapted to a limit disc 15 is formed in the outer shell 3, a push plate 6 is fixedly connected to a right end of the support rod 4, an anti-skid pad 7 is adhered to a right side of the push plate 6, a flat washer 10 is fixedly connected to a right side of the expansion pipe 2, a spring pad 11 is disposed on a right side of the flat washer 10, the nut 12 is sleeved on the outer surface thread of the countersunk head bolt 1, the left side of the nut 12 is in contact with the spring pad 11, the right end of the countersunk head bolt 1 is in contact with the left side of the top plate 13, the left end of the sliding rod 5 is fixedly connected with the top plate 13, the outer surface of the sliding rod 5 is sleeved with the first spring 14, and the left end of the supporting rod 4 is fixedly connected with the limiting disc 15.

The whole embodiment 1 achieves the effect that, when in use, firstly, an expansion bolt is inserted into the shell 3, an expansion pipe 2 on the expansion bolt is inserted into the shell 3, the thread of a countersunk head bolt 1 of the expansion bolt is contacted with a top plate 13 in the shell 3, the countersunk head of the countersunk head bolt 1 is pushed to move towards the inside of the shell 3 by slight force, the top plate 13 is driven to move in the shell 3 when the countersunk head bolt 1 moves, a sliding rod 5 moves out from the inside of the shell 3, a first spring 14 in the shell 3 contracts under the influence of external acting force, the sliding rod 5 drives a push plate 6 to move when moving, the push plate 6 drives a supporting rod 4 to move when moving, the supporting rod 4 moves out from the inside of the shell 3 until the expansion bolt is completely inserted into the shell 3, and the countersunk head of the countersunk head bolt 1 is inserted into a drilled hole, the push plate 6 is pushed to move lightly and forcefully, the push plate 6 drives the slide rod 5 to move, the slide rod 5 drives the top plate 13 to move, the top plate 13 drives the countersunk head bolt 1 to move by means of acting force and thrust generated when the shape of the first spring 14 is restored, and the expansion bolt moves towards the inside of a drilled hole until the expansion pipe 2 of the expansion bolt is completely inserted into the inside of the drilled hole.

Embodiment 2, as shown in fig. 1 and fig. 3, the right side fixedly connected with connecting block 8 of shell 3, the positive surface swing joint of connecting block 8 has the knob 9 of drawing, the rear surface fixedly connected with connecting rod 16 of knob 9 draws, the rear end of connecting rod 16 slides through the positive surface of connecting block 8, the second spacing groove with limiting plate 18 looks adaptation is seted up to the inside of connecting block 8, the front end of second spring 17 welds the positive surface at second spacing inslot wall, and the rear end of second spring 17 welds the positive surface at limiting plate 18, the surface of connecting rod 16 has cup jointed second spring 17, the rear end fixedly connected with limiting plate 18 of connecting rod 16, the rear surface fixedly connected with kelly 19 of limiting plate 18, the rear surface of the inside second spacing inslot wall of connecting block 8 is slided through to the rear end of kelly 19, the card hole with kelly 19 looks adaptation is seted up to the surface of slide bar 5.

The effect that its whole embodiment 2 reaches does, when fixed, gently power the pulling button 9 and drive connecting rod 16 and remove, connecting rod 16 shifts out from the inside of connecting block 8, the inside second spring 17 of connecting block 8 receives the influence shape of external effort and contracts, utilize limiting plate 18 to drive kelly 19 and remove when connecting rod 16 removes, kelly 19 contracts to the inside of connecting block 8, keep kelly 19's position motionless after kelly 19 contracts the inside of connecting block 8 completely, the expansion bolt inserts the inside slide bar 5 of shell 3 and loosens the pulling button 9 that keeps the pulling after the removal is accomplished, second spring 17 just no longer receives the influence shape of external effort and recovers, kelly 19 shifts out from the inside of connecting block 8 with the help of the effort when second spring 17 recovers, kelly 19 inserts the inside of slide bar 5, slide bar 5 stops moving.

The working principle is as follows: when the expansion bolt is used, firstly, the expansion bolt is inserted into the shell 3, the expansion tube 2 on the expansion bolt is inserted into the shell 3, the thread of the countersunk head bolt 1 of the expansion bolt is in contact with the top plate 13 in the shell 3, the pull button 9 is pulled lightly and forcefully to drive the connecting rod 16 to move, the connecting rod 16 moves out from the inside of the connecting block 8, the shape of the second spring 17 in the connecting block 8 is influenced by external acting force to contract, the limiting plate 18 is utilized to drive the clamping rod 19 to move when the connecting rod 16 moves, the clamping rod 19 contracts towards the inside of the connecting block 8 until the clamping rod 19 completely contracts into the inside of the connecting block 8, the position of the clamping rod 19 is kept still, the countersunk head of the countersunk head bolt 1 is pushed lightly and moves towards the inside of the shell 3, the top plate 13 is driven to move inside the shell 3 when the countersunk head bolt 1 moves, and the slide rod 5 moves out of the inside of the shell 3, the first spring 14 inside the shell 3 contracts under the influence of external acting force, the sliding rod 5 drives the push plate 6 to move when moving, the push plate 6 drives the support rod 4 to move when moving, the support rod 4 moves out of the shell 3 until the expansion bolt is completely inserted into the shell 3, the expansion bolt is inserted into the sliding rod 5 inside the shell 3, after the movement, the pull button 9 which is kept pulled is loosened, the shape which is not influenced by the external acting force is not recovered by the second spring 17, the clamping rod 19 moves out of the inside of the connecting block 8 under the action of the restoring force of the second spring 17, the clamping rod 19 is inserted into the inside of the sliding rod 5, the sliding rod 5 stops moving, the countersunk head of the countersunk head bolt 1 is inserted into the inside of the drilled hole, the pull button 9 is pulled again to drive the clamping rod 19 to move, the clamping rod 19 moves out of the inside of the sliding rod 5, and the push plate 6 to move lightly, the push plate 6 drives the slide rod 5 to move, the slide rod 5 drives the top plate 13 to move, the top plate 13 drives the countersunk head bolt 1 to move by means of acting force and thrust when the shape of the first spring 14 is restored, and the expansion bolt moves towards the inside of a drilled hole until the expansion pipe 2 of the expansion bolt is completely inserted into the inside of the drilled hole.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. A metal expansion bolt, includes countersunk bolt (1), its characterized in that: an expansion pipe (2) is sleeved on the outer surface of the countersunk head bolt (1), a shell (3) is sleeved on the outer surface of the expansion pipe (2), a support rod (4) is penetrated through the right side of the shell (3) in a sliding way, a slide rod (5) is penetrated through the right side of the shell (3) in a sliding way, the right end of the supporting rod (4) is fixedly connected with a push plate (6), the right side of the push plate (6) is adhered with an anti-skid pad (7), a flat washer (10) is fixedly connected to the right side of the expansion pipe (2), a spring pad (11) is arranged on the right side of the flat washer (10), a nut (12) is sleeved on the outer surface of the countersunk head bolt (1) in a threaded manner, a top plate (13) is fixedly connected at the left end of the sliding rod (5), the outer surface of the sliding rod (5) is sleeved with a first spring (14), and the left end of the supporting rod (4) is fixedly connected with a limiting disc (15).

2. The metal expansion bolt as claimed in claim 1, wherein: the right side fixedly connected with connecting block (8) of shell (3), the positive surface swing joint of connecting block (8) has pull button (9), the rear surface fixedly connected with connecting rod (16) of pull button (9), second spring (17) have been cup jointed to the surface of connecting rod (16), the rear end fixedly connected with limiting plate (18) of connecting rod (16), the rear surface fixedly connected with kelly (19) of limiting plate (18).

3. The metal expansion bolt as claimed in claim 1, wherein: the left side of nut (12) contacts with spring pad (11), the right-hand member of countersunk head bolt (1) contacts with the left side of roof (13).

4. The metal expansion bolt as claimed in claim 1, wherein: the left side of shell (3) is seted up with the spout of roof (13) looks adaptation, the right-hand member welding of first spring (14) is in the right side of spout inner wall, and the left end welding of first spring (14) is on the right side of roof (13).

5. The metal expansion bolt as claimed in claim 1, wherein: the right end fixed connection of slide bar (5) is in the left side of push pedal (6), the first spacing groove with spacing dish (15) looks adaptation is seted up in the inside of shell (3).

6. The metal expansion bolt as claimed in claim 2, wherein: the rear end of connecting rod (16) slides the positive surface of through connection piece (8), the second spacing groove with limiting plate (18) looks adaptation is seted up to the inside of connecting piece (8), the front end welding of second spring (17) is on the positive surface of second spacing inslot wall, and the rear end welding of second spring (17) is on the positive surface of limiting plate (18).

7. The metal expansion bolt as claimed in claim 2, wherein: the rear end of the clamping rod (19) penetrates through the rear surface of the inner wall of the second limiting groove in the connecting block (8) in a sliding mode, and a clamping hole matched with the clamping rod (19) is formed in the outer surface of the sliding rod (5).