CN218760797U - Expansion screw with bidirectional fastening function - Google Patents
Expansion screw with bidirectional fastening function Download PDFInfo
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- CN218760797U CN218760797U CN202222409161.9U CN202222409161U CN218760797U CN 218760797 U CN218760797 U CN 218760797U CN 202222409161 U CN202222409161 U CN 202222409161U CN 218760797 U CN218760797 U CN 218760797U
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- countersunk head
- expand tube
- expansion
- outer peripheral
- aperture
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Abstract
The utility model discloses an expansion screw with two-way fastening function, include: the device comprises a first countersunk head, a support column, an expansion pipe and a first open slot; first countersunk head one end is provided with the support column, and first countersunk head is as connecting the basis, the expand tube has been cup jointed to the support column outer peripheral face, first open slot has been seted up on the expand tube one end outer peripheral face. Through rotatory hexagon nut, promote the second countersunk head card and go into the expand tube other end, support when the expand tube at the aperture tip, first countersunk head and second countersunk head push into the both ends of expand tube respectively, make the outside inflation fracture in both ends of expand tube, and then with in the firm installation aperture of expand tube, through rotatory bolt, drive first countersunk head and outwards remove, and then adjust the total length of first countersunk head and support column, adapt to the aperture of the different degree of depth and the expand tube of different length, detain the block through box and son, install the wear ring in the expand tube outside, and through the frictional force between anti-skidding line increase and the aperture, further improve the fastness of installation.
Description
Technical Field
The utility model relates to an expansion screw technical field specifically is an expansion screw with two-way fastening function.
Background
The expansion screw is generally a metal expansion screw, the diameter of the expansion screw is 2mm larger than that of the expansion screw, the expansion screw is plugged in, a nut is screwed up to crack an expansion pipe, the wedge-shaped inclination is utilized to promote expansion to generate friction grip force, and a fixing effect is achieved;
in some special installation, such as the condition that the installation foundation is poor, the expansion pipe of one end of the common expansion screw is expanded and cracked, and still an object cannot be stably fixed and installed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an expansion screw with two-way fastening function to solve the relatively poor condition in installation basis of the expansion screw on the existing market that above-mentioned background art provided, the problem of the fixed object of unable five stabilities.
In order to achieve the above object, the utility model provides a following technical scheme: an expansion screw having a bidirectional fastening function, comprising: the device comprises a first countersunk head, a support column, an expansion pipe and a first open slot;
first countersunk head one end is provided with the support column, and first countersunk head is as connecting the basis, the expand tube has been cup jointed to the support column outer peripheral face, first open slot has been seted up on the expand tube one end outer peripheral face.
Preferably, a placing groove is formed in one end of the supporting column, and a partition board is fixedly connected in the placing groove.
Preferably, a threaded hole is formed in the partition plate, a bolt is connected to the threaded hole in an internal thread mode, a baffle is connected to one end of the bolt, the baffle is connected to the placing groove in a clamping mode, and the other end of the bolt is fixedly connected to one end of the first countersunk head.
Preferably, the baffle is fixed in the placing groove in a welding mode, and the diameter of the baffle is larger than the inner diameter of the threaded hole.
Preferably, the peripheral surface of the expansion pipe is provided with a groove, a female buckle is fixedly connected in the groove, one end of a male buckle is connected in the female buckle in a clamping manner, and the male buckle is connected in the groove.
Preferably, a wear-resistant ring is connected below the sub-buckle, the wear-resistant ring is sleeved on the outer peripheral surface of the expansion pipe, and anti-skid grains are arranged on the outer peripheral surface of the wear-resistant ring.
Preferably, the support column other end is connected with the threaded rod, threaded rod through connection is in the through-hole, the through-hole is seted up in the second countersunk head, the second countersunk head sets up at the expand tube other end.
Preferably, one end of the second countersunk head is connected with a flat washer, one side of the flat washer is connected with a hexagonal nut, and the hexagonal nut is in threaded connection with the end part of the threaded rod;
and the second open slot is formed in the outer peripheral surface of the other end of the expansion pipe.
Compared with the prior art, the beneficial effects of the utility model are that: through rotatory hexagon nut, promote the second countersunk head card and go into the expand tube other end, support when the expand tube is at the aperture tip, first countersunk head and second countersunk head push the both ends of expand tube respectively, make the outside inflation fracture in both ends of expand tube, and then in the firm installation aperture of expand tube, through rotatory bolt, drive first countersunk head and outwards remove, and then adjust the total length of first countersunk head and support column, adapt to the aperture of the different degree of depth and the expand tube of different length, buckle the block through box and son, install the wear-resisting circle in the expand tube outside, and through the frictional force between anti-skidding line increase and the aperture, further improve the fastness of installation, concrete content is as follows:
1. firstly, inserting a first countersunk head into a preset aperture, then sleeving an expansion pipe on a support column from one end of a threaded rod, manually rotating a hexagon nut, and when the first countersunk head and a second countersunk head are completely clamped into two ends of the expansion pipe, expanding and cracking two ends of the expansion pipe through a first open slot and a second open slot, fixing the expansion pipe in the preset aperture, and further stably installing an object on an installation surface;
2. sleeving the wear-resistant ring on the outer side of the expanded pipe to enable the male buckle to be in contact with the corresponding female buckle, then pressing the wear-resistant ring to enable the wear-resistant ring to be installed on the expanded pipe, when two ends of the expanded pipe are expanded and cracked, the anti-skid grains are in contact with the inner peripheral surface of the aperture, the friction between the anti-skid grains and the outer peripheral surface of the expanded pipe is increased again, and the expanded pipe is further stably fixed in the aperture;
3. the first countersunk head of manual rotation, it is rotatory that first countersunk head drives the bolt, and the bolt outwards removes, and then adjusts the length of the assembly of first countersunk head, support column and threaded rod, adapts to the aperture of the different degree of depth, improves this inflation screw's practicality.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
fig. 2 is a schematic structural view of the threaded rod of the present invention;
fig. 3 is an enlarged view of the part a structure of the present invention.
In the figure: 1. a first countersunk head; 2. a support pillar; 201. a placement groove; 202. a partition plate; 203. a threaded hole; 204. a bolt; 205. a baffle plate; 3. expanding the tube; 301. a groove; 302. a female buckle; 303. a sub-buckle; 304. Wear-resistant rings; 305. anti-skid lines; 4. a first open slot; 5. a threaded rod; 6. a through hole; 7. a second countersunk head; 8. a flat washer; 9. a hexagonal nut; 10. a second open slot.
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 efforts all belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an expansion screw having a bidirectional fastening function, comprising: the device comprises a first countersunk head 1, a support column 2, an expansion pipe 3 and a first open slot 4;
The standing groove 201 has been seted up to support column 2 one end, fixedly connected with baffle 202 in the standing groove 201. Threaded hole 203 is seted up in the baffle 202, and threaded hole 203 female connection has bolt 204, and bolt 204 one end is connected with baffle 205, and baffle 205 block is connected in standing groove 201, and bolt 204 other end fixed connection carries on spacingly to bolt 204 in first countersunk head 1 one end, prevents that bolt 204 from separating with baffle 202 completely. Baffle 202 is fixed in standing groove 201 through the welded mode, and the diameter of baffle 205 is greater than the inside diameter of screw hole 203, makes to be connected more firmly between baffle 202 and the standing groove 201, improves the stability of structure, through rotatory bolt 204, drives first countersunk head 1 and outwards removes, and then adjusts the total length of first countersunk head 1 and support column 2, adapts to the aperture of the different degree of depth and the expand tube 3 of different length.
The outer peripheral surface of the expanding tube 3 is provided with a groove 301, a female buckle 302 is fixedly connected in the groove 301, one end of a male buckle 303 is connected in the female buckle 302 in a clamping manner, and the male buckle 303 is connected in the groove 301. The son is detained 303 below and is connected with wear-resisting circle 304, wear-resisting circle 304 cup joints on 3 outer peripheral faces of expand tube, anti-skidding line 305 has been seted up on the wear-resisting circle 304 outer peripheral face, through anti-skidding line 305 can effectively increase and the frictional force between the aperture, and then make more firm the fixing in the aperture of this inflation screw, detain 303 block through box 302 and son, install wear-resisting circle 304 in the expand tube 3 outside, and through the frictional force between anti-skidding line 305 increase and the aperture, further improve the fastness of installation.
The other end of the support column 2 is connected with a threaded rod 5, the threaded rod 5 is in a through hole 6 in a penetrating mode, the through hole 6 is formed in a second countersunk head 7, and the second countersunk head 7 is arranged at the other end of the expansion pipe 3. Second countersunk head 7 one end is connected with plain washer 8, 8 one side of plain washer is connected with hexagon nut 9, hexagon nut 9 threaded connection is at 5 tip of threaded rod, second open slot 10, set up on 3 other end outer peripheral faces of expand tube, make the 3 other end of expand tube after receiving the extrusion force, under the effect of second open slot 10, can outwards expand and split, through rotatory hexagon nut 9, promote the 3 other ends of expand tube of second countersunk head 7 card income, and drive 3 one end cards of expand tube on 1, when expand tube 3 supports when the aperture tip, the both ends of expand tube 3 are pushed into respectively to 1 countersunk head and 7 countersunk head, make the both ends of expand tube 3 outwards to split along 4 and 10 open slots of first open slot and second open slot, and then in the firm installation aperture of expand tube 3, thereby stable fixed mounting object.
In conclusion: as shown in fig. 1-3, when the expansion screw with bidirectional fastening function is used, the device is simply known, first, when the aperture is deep and the first countersunk head 1 cannot reach the bottom of the aperture, the first countersunk head 1 is manually rotated, the first countersunk head 1 drives the bolt 204 to rotate, the bolt 204 moves outwards along the placing groove 201 while rotating in the threaded hole 203, and then the length of the combination of the first countersunk head 1, the supporting column 2 and the threaded rod 5 is adjusted to adapt to the apertures of different depths, so as to improve the practicability of the expansion screw, then the combination of the first countersunk head 1, the supporting column 2 and the threaded rod 5 is inserted into the preset aperture, then the expansion tube (3) is sleeved on the supporting column 2 from one end of the threaded rod 5, then the second countersunk head 7 and the flat washer 8 are sequentially sleeved, and finally, the hexagon nut 9 is screwed with the threaded rod 5, after complete assembly is completed, the hexagon nut 9 is manually rotated, the hexagon nut 9 is rotated on the threaded rod 5, the flat washer 8 and the second countersunk head 7 are pushed, one end of the second countersunk head 7 is clamped into one end of the expansion tube 3, one end of the expansion tube 3 is further pushed to move until the other end of the expansion tube 3 is clamped on the first countersunk head 1, the hexagon nut 9 is continuously rotated, the hexagon nut 9 is continuously extruded on the first countersunk head 1, one end of the expansion tube 3 is pushed to be continuously contacted with the second countersunk head 7 until the first countersunk head 1 and the second countersunk head 7 are completely clamped on two ends of the expansion tube 3, when the first countersunk head 1 and the second countersunk head 7 are completely clamped into two ends of the expansion tube 3, two ends of the expansion tube 3 are expanded and cracked through the first open slot 4 and the second open slot 10 and are fixed in a preset aperture, so that an object can be stably installed on an installation surface, and finally, before installation, the wear-resistant ring 304 is sleeved outside the expansion tube 3, two ends of the wear-resistant ring 304 are aligned with two ends of the expansion tube 3, then the wear-resistant ring 304 is rotated, the snap buttons 303 on the inner circumferential surface of the wear-resistant ring 304 enter the corresponding grooves 301 to contact with the corresponding female buttons 302, then the wear-resistant ring 304 is pressed to protrude until the snap buttons 303 are clamped with the female buttons 302, so that the wear-resistant ring 304 is mounted on the expansion tube 3, when two ends of the expansion tube 3 expand and crack, the snap buttons are clamped on the inner circumferential surface of the aperture, the wear-resistant ring 304 is pressed together with the inner circumferential surface of the aperture until the deformation limit of the wear-resistant ring 304 is reached, at this time, the anti-slip threads 305 are contacted with the inner circumferential surface of the aperture, the friction force between the wear-resistant ring and the outer circumferential surface of the expansion tube 3 is increased again, and the expansion tube 3 is further stably fixed in the aperture, and the content not described in detail in the description belongs to the prior art known by the experts in the field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. An expansion screw having a bidirectional fastening function, comprising: the device comprises a first countersunk head (1), a support column (2), an expansion pipe (3) and a first open slot (4), and is characterized in that;
a supporting column (2) is arranged at one end of the first countersunk head (1), an expanding tube (3) is sleeved on the outer peripheral surface of the supporting column (2), a first open slot (4) is formed in the outer peripheral surface of one end of the expanding tube (3), a threaded rod (5) is connected to the other end of the supporting column (2), the threaded rod (5) is connected in a through hole (6) in a penetrating manner, the through hole (6) is formed in a second countersunk head (7), the second countersunk head (7) is arranged at the other end of the expanding tube (3), a flat washer (8) is connected to one end of the second countersunk head (7), a hexagonal nut (9) is connected to one side of the flat washer (8), and the hexagonal nut (9) is in threaded connection with the end of the threaded rod (5);
and the second open slot (10) is arranged on the peripheral surface of the other end of the expansion pipe (3).
2. The expansion screw with the bidirectional fastening function as set forth in claim 1, wherein: a placing groove (201) is formed in one end of the supporting column (2), and a partition plate (202) is fixedly connected into the placing groove (201).
3. The expansion screw with the bidirectional fastening function as set forth in claim 2, wherein: threaded holes (203) are formed in the partition plate (202), bolts (204) are connected with the threaded holes (203) in an internal thread mode, one ends of the bolts (204) are connected with baffle plates (205), the baffle plates (205) are connected in the placing groove (201) in a clamping mode, and the other ends of the bolts (204) are fixedly connected to one end of the first countersunk head (1).
4. The expansion screw with the bidirectional fastening function as set forth in claim 3, wherein: the baffle plate (202) is fixed in the placing groove (201) in a welding mode, and the diameter of the baffle plate (205) is larger than the inner diameter of the threaded hole (203).
5. The expansion screw with the bidirectional fastening function as set forth in claim 1, wherein: the pipe expander is characterized in that a groove (301) is formed in the outer peripheral surface of the pipe expander (3), a female buckle (302) is fixedly connected in the groove (301), one end of a sub-buckle (303) is connected in the female buckle (302) in a clamping mode, and the sub-buckle (303) is connected in the groove (301).
6. The expansion screw with bidirectional fastening function as set forth in claim 5, wherein: a wear-resistant ring (304) is connected below the sub-buckle (303), the wear-resistant ring (304) is sleeved on the outer peripheral surface of the expansion pipe (3), and anti-skid grains (305) are formed in the outer peripheral surface of the wear-resistant ring (304).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222409161.9U CN218760797U (en) | 2022-09-09 | 2022-09-09 | Expansion screw with bidirectional fastening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222409161.9U CN218760797U (en) | 2022-09-09 | 2022-09-09 | Expansion screw with bidirectional fastening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218760797U true CN218760797U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222409161.9U Active CN218760797U (en) | 2022-09-09 | 2022-09-09 | Expansion screw with bidirectional fastening function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218760797U (en) |
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2022
- 2022-09-09 CN CN202222409161.9U patent/CN218760797U/en active Active
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