CN220816187U - Built-in expansion bolt of outer hexagonal extension tube - Google Patents

Abstract

The utility model relates to the technical field of expansion bolts, in particular to an expansion bolt with a built-in outer hexagonal extension tube, which comprises a countersunk head bolt and an expansion tube, wherein the expansion tube is sleeved on the surface of the countersunk head bolt, the surface of the countersunk head bolt is connected with a first nut in a threaded manner, the end part of the countersunk head bolt is provided with a conical expansion head, and the surface of the expansion tube is connected with a second nut in a threaded manner. According to the utility model, the extension rod inserted at the end part of the countersunk head bolt can be pulled out outwards, and then the extension rod is limited by the limiting structure, so that the connection effect is convenient, if the expansion bolt is required to be disassembled, the countersunk head bolt is impacted by a hammer, so that the conical expansion head at the end part of the countersunk head bolt is separated from the expansion pipe, then the second nut is rotated by a tool, so that the expansion pipe is driven to move outwards by the second nut, and at the moment, the expansion pipe can be deformed under the extrusion of the hole wall because the interior of the expansion pipe is not limited by the conical expansion head, and the expansion pipe is further moved outwards, so that the expansion pipe is convenient to disassemble.

Description

Built-in expansion bolt of outer hexagonal extension tube

Technical Field

The utility model relates to the technical field of expansion bolts, in particular to an expansion bolt with a built-in outer hexagonal extension tube.

Background

The expansion bolt mainly comprises a screw rod, an expansion sleeve and a nut, wherein the expansion sleeve and the nut are sleeved on the screw rod, in use, the wall or the ground is generally required to be punched by an electric drill firstly, then the whole expansion bolt is inserted into the wall or the ground, then the nut is rotated by a spanner, so that the screw rod is driven to move outwards by the nut, the expansion sleeve is extruded by a conical part at the end part of the screw rod, so that the expansion sleeve is stressed and deformed to be fixed with the hole, the expansion hook is derived from the expansion bolt, and a hook is arranged at the end part of the screw rod so as to achieve the connecting purpose.

The traditional expansion bolts generally only play a role in fixing parts, so that the length of the part of the countersunk head bolts extending out of the wall is uncontrollable when the expansion bolts are used, the expansion bolts have the function of fixing parts, the purpose of connecting the parts is needed sometimes, the length of the part of the countersunk head bolts extending out of the wall is not adjustable, the expansion bolts are inconvenient to use in practice, the traditional expansion bolts cannot be completely removed from the wall after being driven into the wall, and a polishing machine is generally utilized to polish away the countersunk head bolts when the expansion bolts are not used, so that the expansion bolts are inconvenient to use.

Disclosure of utility model

The utility model aims to provide an expansion bolt with a built-in outer hexagonal extension pipe, which solves the problems that the length of a part of a countersunk head bolt extending out of a wall in the prior art is not adjustable, so that the practical use is inconvenient, the traditional expansion bolt cannot be completely removed from the wall after being driven into the wall, and the excessive countersunk head bolt is generally ground by a polishing machine when not used, so that the use is inconvenient.

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

The expansion bolt comprises a countersunk head bolt and an expansion pipe, wherein the expansion pipe is sleeved on the surface of the countersunk head bolt, a first nut is connected with the surface of the countersunk head bolt in a threaded manner, the end part of the countersunk head bolt is provided with a conical expansion head, a second nut is connected with the surface of the expansion pipe in a threaded manner, an extension rod is movably inserted into one end, far away from the conical expansion head, of the countersunk head bolt, and a limiting structure is arranged at a port, located inside the countersunk head bolt, of the extension rod.

Preferably, a handle is fixedly arranged on the surface, close to the first nut, of the expansion pipe.

Preferably, the surface of the expansion pipe is sleeved with a rotating ring.

Preferably, the limiting structure comprises two limiting blocks, the two limiting blocks are fixedly arranged on the surface of the extension rod at positions close to the port, the two limiting blocks are symmetrically arranged, two long grooves matched with the limiting blocks in size are formed in the inner wall of the countersunk head bolt, and limiting grooves are uniformly formed in the inner wall of the countersunk head bolt.

Preferably, the surface of the extension bar far away from the limiting block is provided with an annular groove, and the position of the surface of the extension bar close to the annular groove is provided with a connecting hole.

Preferably, a notch is formed in one end, far away from the conical expansion head, of the countersunk head bolt.

The utility model has at least the following beneficial effects:

The extension rod inserted at the end part of the countersunk head bolt can be pulled out outwards, and then the extension rod is limited by the limiting structure, so that the expansion bolt is convenient to connect, if the expansion bolt is required to be disassembled, the countersunk head bolt is impacted by a hammer, the conical expansion head at the end part of the countersunk head bolt is separated from the expansion pipe, then the second nut is rotated by a tool, the expansion pipe is driven to move outwards by the second nut, and at the moment, the expansion pipe can deform under the extrusion of the hole wall because the expansion pipe is not limited by the conical expansion head.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a notch structure according to the present utility model;

FIG. 3 is a cross-sectional view of a countersunk head bolt in accordance with the present utility model.

In the figure: 1. countersunk head bolts; 2. a conical expansion head; 3. an expansion tube; 4. a first nut; 5. a second nut; 6. a rotating ring; 7. a handle; 8. a notch; 9. an extension bar; 10. a connection hole; 11. an annular groove; 12. a limiting groove; 13. a long groove; 14. the block is restricted.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Referring to fig. 1-3, the built-in expansion bolt of outer hexagonal extension pipe, including countersunk head bolt 1 and expansion pipe 3, expansion pipe 3 cover is established on countersunk head bolt 1's surface, countersunk head bolt 1's surface threaded connection has first nut 4, countersunk head bolt 1's tip sets up to conical expansion head 2, expansion pipe 3's surface threaded connection has second nut 5, countersunk head bolt 1 keeps away from conical expansion head 2's one end activity and inserts extension bar 9, extension bar 9 is located countersunk head bolt 1's inside port is provided with limit structure, utilize the drill bit to bore wall or ground earlier in the use, then beat countersunk head bolt 1 in the hole, utilize the instrument to twist first nut 4 can realize moving countersunk head bolt 1, and then utilize conical expansion head 2 to extrude expansion pipe 3 and warp the purpose that realizes fixing, extension bar 9 that inserts at countersunk head bolt 1 tip outwards can pull out, then utilize limit structure to restrict, thereby conveniently play the linking action, if need dismantle expansion bolt, make countersunk head bolt 1's tip's conical expansion head 2 break away from second nut 3, then take place the internal rotation of expansion pipe 3, the expansion pipe 3 is realized to the expansion pipe 3 is rotated to the inside by the second nut 3, the time is rotated to the expansion pipe 3 is rotated to the extension nut is taken place, the time is convenient to take place, and expansion pipe 3 is convenient to take place, and the expansion pipe is convenient to take place is deformed outside the inside the expansion pipe is moved outside the inside the expansion pipe 3.

Further, the surface fixed mounting that is close to first nut 4 of expansion pipe 3 has handle 7, through setting up handle 7, when dismantling expansion bolt, can utilize handle 7 to make expansion pipe 3 unable rotation, then utilize the spanner to rotate second nut 5 alright make expansion pipe 3 take place only and remove, avoid expansion pipe 3 and the synchronous rotation of second nut 5 to lead to the phenomenon that can't break away from.

Further, the surface cover of expansion pipe 3 is equipped with swivel becket 6, through setting up swivel becket 6, separates with swivel becket 6 between second nut 5 and the wall to the convenience rotates second nut 5, can avoid the rotation of second nut 5 to cause the damage to the wall is further.

Further, the limiting structure comprises two limiting blocks 14, the two limiting blocks 14 are fixedly arranged at positions, close to the ports, on the surface of the extension rod 9, of the two limiting blocks 14 are symmetrically arranged, two long grooves 13 which are matched with the limiting blocks 14 in size are formed in the inner wall of the countersunk bolt 1, limiting grooves 12 are uniformly formed in the inner wall of the countersunk bolt 1, in use, the extension rod 9 is pulled firstly, when the extension rod 9 is moved to a proper position, the limiting blocks 14 are aligned with the corresponding limiting grooves 12, the extension rod 9 is rotated, the limiting blocks 14 on the surface of the extension rod 9 are rotated along the corresponding limiting grooves 12, and therefore the extension rod 9 cannot move, and the purpose of limiting the extension rod 9 is achieved.

Further, annular groove 11 has been seted up to the surface that restriction piece 14 was kept away from to extension bar 9, and connecting hole 10 has been seted up to the position that the surface of extension bar 9 is close to annular groove 11, through annular groove 11 that sets up, can push into the inside of countersunk head bolt 1 with extension bar 9 when not needing to use extension bar 9, annular groove 11 conveniently draws out it, and parts such as connecting wire iron wire are used in the setting of connecting hole 10 convenience.

Further, the gap 8 is formed in one end, far away from the conical expansion head 2, of the countersunk head bolt 1, and through the arrangement of the gap 8, when the extension rod 9 is completely retracted into the countersunk head bolt 1, the extension rod 9 can be pulled out by means of cooperation of the gap 8, and all the extension rod 9 is hidden when the countersunk head bolt is not used, so that the extension rod 9 cannot be influenced when the expansion bolt is driven into a hole.

In summary, in the use, firstly, the drill bit is used for drilling a wall or the ground, then the countersunk head bolt 1 is drilled into the hole, the first nut 4 is screwed by a tool, the movement of the countersunk head bolt 1 can be realized, and then the expansion pipe 3 is extruded and deformed by the tapered expansion head 2 to realize the fixation, the extension rod 9 inserted at the end part of the countersunk head bolt 1 can be pulled outwards, then the limitation structure is used for limiting, so that the connection effect is convenient, if the expansion bolt needs to be disassembled, firstly, the countersunk head bolt 1 is impacted by a hammer, the tapered expansion head 2 at the end part of the countersunk head bolt 1 is separated from the expansion pipe 3, then the second nut 5 is rotated by the tool, the expansion pipe 3 is driven to move outwards by the second nut 5, at the moment, the inside of the expansion pipe 3 is not limited by the tapered expansion head 2, the expansion pipe 3 can be deformed under the extrusion of the hole wall, and the expansion pipe 3 is outwards moved, so that the disassembly is convenient,

Through setting up handle 7, when dismantling expansion bolts, can utilize handle 7 to make expansion pipe 3 unable rotation, then reuse spanner rotation second nut 5 alright make expansion pipe 3 take place only and remove, avoid expansion pipe 3 and the synchronous rotation of second nut 5 to lead to the phenomenon that can't break away from, through setting up swivel ring 6, utilize swivel ring 6 to separate between second nut 5 and the wall, thereby conveniently rotate second nut 5, can avoid the rotation of second nut 5 to further cause the damage to the wall, limit structure in use, at first pulling extension 9, stop pulling after removing to suitable position, and make restriction piece 14 and corresponding restriction groove 12 align, rotate extension 9, make the restriction piece 14 on extension 9 surface rotate along corresponding restriction groove 12 into, thereby make extension 9 unable removal, and then realize restricting the purpose to extension 9, through setting up ring channel 11, can push in extension 9 the inside of countersunk bolt 1 when not needing to use extension 9, ring channel 11 conveniently draw out it, connect wire setting up convenient connection iron wire and the like and setting up can be completely to use the inside of extension 9 when setting up the extension 9 when the recess is not using the extension 9, can be completely to be hidden the inside when the extension 9, can not be set up the inside is used to the extension 9, can be completely when using the extension 9 to be hidden.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an outer hexagon extension pipe built-in expansion bolts, includes countersunk head bolt (1) and expansion pipe (3), expansion pipe (3) cover is established on the surface of countersunk head bolt (1), the surface threaded connection of countersunk head bolt (1) has first nut (4), the tip of countersunk head bolt (1) sets up to toper expansion head (2), a serial communication port, the surface threaded connection of expansion pipe (3) has second nut (5), countersunk head bolt (1) keep away from the one end activity of toper expansion head (2) and insert and be equipped with extension bar (9), the port that extension bar (9) are located countersunk head bolt (1) inside is provided with limit structure.

2. The expansion bolt with the built-in outer hexagonal extension tube according to claim 1, wherein a handle (7) is fixedly installed on the surface of the expansion tube (3) close to the first nut (4).

3. The expansion bolt with the built-in outer hexagonal extension tube according to claim 1, wherein a rotating ring (6) is sleeved on the surface of the expansion tube (3).

4. The expansion bolt with the built-in outer hexagonal extension tube according to claim 1, wherein the limiting structure comprises two limiting blocks (14), the two limiting blocks (14) are fixedly installed on the surface of the extension rod (9) at positions close to the port, the two limiting blocks (14) are symmetrically arranged, two long grooves (13) matched with the limiting blocks (14) in size are formed in the inner wall of the countersunk head bolt (1), and limiting grooves (12) are uniformly formed in the inner wall of the countersunk head bolt (1).

5. The expansion bolt with the built-in outer hexagonal extension tube according to claim 4, wherein the surface of the extension bar (9) far away from the limiting block (14) is provided with an annular groove (11), and the surface of the extension bar (9) near the annular groove (11) is provided with a connecting hole (10).

6. The expansion bolt with the built-in outer hexagonal extension tube according to claim 5, wherein a notch (8) is formed at one end of the countersunk head bolt (1) far away from the conical expansion head (2).