CN219711982U - Portable expansion bolt - Google Patents
Portable expansion bolt Download PDFInfo
- Publication number
- CN219711982U CN219711982U CN202321355588.3U CN202321355588U CN219711982U CN 219711982 U CN219711982 U CN 219711982U CN 202321355588 U CN202321355588 U CN 202321355588U CN 219711982 U CN219711982 U CN 219711982U
- Authority
- CN
- China
- Prior art keywords
- nut
- sleeve
- screw body
- expansion bolt
- drill bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007423 decrease Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to the technical field of fasteners, in particular to a portable expansion bolt. Comprises a screw body, a nut, a fastening component, a sleeve, a buckle and a drill bit; the nut, the fastening component and the sleeve penetrate through the outside of the screw body in sequence, the nut is in threaded connection with the screw body, one end, close to the nut, of the screw body is fixedly connected with the buckle, the buckle is clamped with the electric drill connecting hole, and one end, far away from the nut, of the screw body is fixedly connected with the drill bit. The utility model reduces the problem that the caliber of the tapping drill bit is larger than that of the expansion bolt due to improper operation, so that the fixation cannot be completed; meanwhile, the possibility that the expansion bolt thread is hit down by using a hammer and cannot be used is reduced. Therefore, the taping tool can be reduced at the time of aloft work. The potential safety hazard caused by falling of the tool is reduced.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a portable expansion bolt.
Background
Expansion bolts are mainly used for fixing objects on buildings, and have reliability and firmness far higher than those of common bolts, and generally comprise parts such as bolt columns, expansion sleeves, nuts, flat washers, spring washers and the like.
In the process of industrial fixed bridge frames, pipeline supports and the like, the expansion bolts are used for tapping by an electric hammer, then the expansion bolts are put in, and if the depth of one tapping is insufficient, the tapping needs to be repeated. The tapping process is excessively complicated, and when special conditions are met and the expansion bolt is required to be hammered, the threads on the bolt cylinder are deformed, so that the nut cannot be screwed in, and the expansion bolt is wasted. Re-tapping is required.
Therefore, there is a need for an expansion bolt that can successfully drop the bolt at one time and complete the fixation, reducing the use of a hammer to crush the expansion bolt.
Disclosure of Invention
The utility model aims to solve the technical problems that: overcomes the defects of the prior art, provides a portable expansion bolt, improves the efficiency of the installation of the expansion bolt, reduces the condition that the expansion bolt is wasted, and avoids the waste of resources.
The utility model relates to a portable expansion bolt, which comprises a screw body, a nut, a fastening assembly, a sleeve, a buckle and a drill bit, wherein the screw body is provided with a screw hole; the nut, the fastening component and the sleeve penetrate through the outside of the screw body in sequence, the nut is in threaded connection with the screw body, one end, close to the nut, of the screw body is fixedly connected with the buckle, the buckle is clamped with the electric drill connecting hole, and one end, far away from the nut, of the screw body is fixedly connected with the drill bit.
The buckle is clamped with the electric drill connecting hole, the screw body and the drill bit serve as tapping drill bits of the electric drill, the drill bit is aligned to the wall body, the electric drill is started, the expansion bolt is brought into the hole while drilling, then the nut is screwed down, the screw body is clamped with the sleeve and the sleeve is propped open, and the expansion bolt is fixedly connected with the wall body.
The drill bit comprises a first part and a second part, wherein the first part is of a conical structure, the second part is of a cylindrical structure, the large diameter of the first part is matched with the diameter of the second part, one side of the large diameter of the first part is fixedly connected with one end of the second part, and the other end of the second part is fixedly connected with the screw body. The first part is the toper structure, and the pressure of exerting at the wall is bigger, makes the drill bit bore the wall body more easily. The second portion enters the wall body along with the first portion, and the cylindrical structure enables the aperture to be consistent, so that sufficient space is provided for the subsequent sleeve to enter.
The second portion has a diameter greater than the outer diameter of the sleeve. Providing sufficient space for the entry of the sleeve. And simultaneously, the construction waste can flow in space.
The fastening assembly includes a flat washer and a spring washer, the flat washer being adjacent the sleeve relative to the spring washer. The flat washer and the spring washer prevent the nut from loosening, and are convenient to assemble and disassemble.
The screw rod body include screw thread portion, polished rod portion and the toper portion that connects gradually, the diameter of toper portion reduces gradually towards screw thread portion direction, the nut is connected with screw thread portion, the sleeve cup joints in polished rod portion periphery, toper portion and sleeve tip joint, second portion and toper portion rigid coupling. The threaded part is used for being connected with the nut, and polished rod portion is used for installing the sleeve, screws the nut, and toper portion and sleeve tip joint make between bolt and the wall body expand tightly into an organic whole.
The periphery of the sleeve is provided with a thread groove along the axial direction. The screw thread groove is used for discharging construction waste generated in the process that the drill bit impacts the wall body hole. In order to prevent construction waste from being clamped between the sleeve and the screw body, the anti-pulling effect of the expansion bolt is reduced during subsequent expansion.
One end of the sleeve, which is close to the conical part, is provided with a pre-fabricated cracking groove. When the prefabricated crack groove is used for bolt expansion, the sleeve is easier to crack, and normal use of the expansion bolt is ensured.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the screw body, the nut, the fastening assembly, the sleeve, the buckle and the drill bit are arranged, the buckle is clamped with the electric drill connecting hole, the screw body and the drill bit serve as tapping drill bits of the electric drill, and the problem that the caliber of the tapping drill bit is larger than that of the expansion bolt due to improper operation, so that the fixation cannot be completed is solved; meanwhile, the possibility that the expansion bolt thread is hit down by using a hammer and cannot be used is reduced. Therefore, the taping tool can be reduced at the time of aloft work. The potential safety hazard caused by falling of the tool is reduced.
Drawings
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic view of a construction of a fastening assembly and drill bit embodying the present utility model;
fig. 3 is a schematic cross-sectional view of fig. 1.
In the figure: 1. a buckle; 2. a screw body; 21. a threaded portion; 22. a polish rod part; 23. a tapered portion; 3. a nut; 4. a fastening assembly; 41. a spring washer; 42. a flat gasket; 5. a sleeve; 6. a thread groove; 7. prefabricating a cracking groove; 8. a drill bit; 81. a second section; 82. a first portion.
Detailed Description
The utility model is further described below with reference to examples:
example 1
As shown in fig. 1, the portable expansion bolt of the utility model comprises a screw body 2, a nut 3, a fastening component 4, a sleeve 5, a buckle 1 and a drill bit 8; the nut 3, the fastening assembly 4 and the sleeve 5 sequentially penetrate through the outside of the screw body 2, the nut 3 is in threaded connection with the screw body 2, one end, close to the nut 3, of the screw body 2 is fixedly connected with the buckle 1, the buckle 1 is clamped with an electric drill connecting hole (not shown in the figure), and one end, far away from the nut 3, of the screw body 2 is fixedly connected with the drill bit 8.
The working process comprises the following steps:
the buckle 1 is clamped with an electric drill connecting hole, the screw body 2 and the drill bit 8 serve as tapping drill bits 8 of the electric drill, the drill bit 8 is aligned with a wall body, the electric drill is started, an expansion bolt is brought into the hole while drilling, then the nut 3 is screwed down, the screw body 2 is clamped with the sleeve 5 and the sleeve 5 is spread, and the expansion bolt is fastened and connected with the wall body.
Example 2
As shown in fig. 1, the portable expansion bolt of the utility model comprises a screw body 2, a nut 3, a fastening component 4, a sleeve 5, a buckle 1 and a drill bit 8; the nut 3, the fastening assembly 4 and the sleeve 5 sequentially penetrate through the outside of the screw body 2, the nut 3 is in threaded connection with the screw body 2, one end, close to the nut 3, of the screw body 2 is fixedly connected with the buckle 1, the buckle 1 is clamped with an electric drill connecting hole (not shown in the figure), and one end, far away from the nut 3, of the screw body 2 is fixedly connected with the drill bit 8. The periphery of the sleeve 5 is provided with a thread groove 6 along the axial direction. The sleeve 5 is provided with a pre-split groove 7 at the end near the conical part 23.
As shown in fig. 2, the drill bit 8 includes a first portion 82 and a second portion 81, the first portion 82 is of a conical structure, the second portion 81 is of a cylindrical structure, the large diameter of the first portion 82 is adapted to the diameter of the second portion 81, one side of the large diameter of the first portion 82 is fixedly connected with one end of the second portion 81, and the other end of the second portion 81 is fixedly connected with the screw body 2. The second portion 81 has a diameter greater than the outer peripheral diameter of the sleeve 5. The fastening assembly 4 comprises a flat washer 42 and a spring washer 41, the flat washer 42 being adjacent to the sleeve 5 relative to the spring washer 41.
As shown in fig. 3, the screw body 2 includes a threaded portion 21, a polish rod portion 22 and a tapered portion 23 connected in sequence, the diameter of the tapered portion 23 gradually decreases toward the threaded portion 21, the nut 3 is connected with the threaded portion 21, the sleeve 5 is sleeved on the outer periphery of the polish rod portion 22, the tapered portion 23 is clamped with the end portion of the sleeve 5, and the second portion 81 is fixedly connected with the tapered portion 23.
The working process comprises the following steps:
the buckle 1 is clamped with an electric drill connecting hole, the screw body 2 and the drill bit 8 serve as a tapping drill bit 8 of the electric drill, the drill bit 8 is aligned with a wall body, the electric drill is started, an expansion bolt is brought into the hole while drilling, then the nut 3 is screwed down, the conical portion 23 is clamped into the sleeve 5, the prefabricated crack 7 on the sleeve 5 is opened, and the expansion bolt is fixedly connected with the wall body.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (7)
1. The portable expansion bolt is characterized by comprising a screw body (2), a nut (3), a fastening assembly (4), a sleeve (5), a buckle (1) and a drill bit (8); the nut (3), the fastening assembly (4) and the sleeve (5) sequentially penetrate through the outside of the screw body (2), the nut (3) is in threaded connection with the screw body (2), one end, close to the nut (3), of the screw body (2) is fixedly connected with the buckle (1), the buckle (1) is connected with the electric drill through the connecting hole in a clamping mode, and one end, far away from the nut (3), of the screw body (2) is fixedly connected with the drill bit (8).
2. The portable expansion bolt according to claim 1, wherein the drill bit (8) comprises a first part (82) and a second part (81), the first part (82) is of a conical structure, the second part (81) is of a cylindrical structure, the large diameter of the first part (82) is matched with the diameter of the second part (81), one side of the large diameter of the first part (82) is fixedly connected with one end of the second part (81), and the other end of the second part (81) is fixedly connected with the screw body (2).
3. A portable expansion bolt according to claim 2, characterized in that the second portion (81) has a diameter larger than the outer peripheral diameter of the sleeve (5).
4. A portable expansion bolt according to claim 1, characterized in that the fastening assembly (4) comprises a flat washer (42) and a spring washer (41), the flat washer (42) being close to the sleeve (5) relative to the spring washer (41).
5. The portable expansion bolt according to any one of claims 1 to 4, wherein the screw body (2) comprises a threaded portion (21), a polish rod portion (22) and a conical portion (23) which are sequentially connected, the diameter of the conical portion (23) gradually decreases towards the threaded portion (21), the nut (3) is connected with the threaded portion (21), the sleeve (5) is sleeved on the periphery of the polish rod portion (22), the conical portion (23) is clamped with the end portion of the sleeve (5), and the second portion (81) is fixedly connected with the conical portion (23).
6. Portable expansion bolt according to claim 5, characterized in that the sleeve (5) is provided with a screw groove (6) in the axial direction at the outer periphery.
7. A portable expansion bolt according to claim 6, characterized in that the sleeve (5) is provided with a pre-split groove (7) near one end of the conical portion (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355588.3U CN219711982U (en) | 2023-05-30 | 2023-05-30 | Portable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355588.3U CN219711982U (en) | 2023-05-30 | 2023-05-30 | Portable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219711982U true CN219711982U (en) | 2023-09-19 |
Family
ID=87983486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321355588.3U Active CN219711982U (en) | 2023-05-30 | 2023-05-30 | Portable expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219711982U (en) |
-
2023
- 2023-05-30 CN CN202321355588.3U patent/CN219711982U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |