CN219411578U - Stair railing convenient to installation - Google Patents
Stair railing convenient to installation Download PDFInfo
- Publication number
- CN219411578U CN219411578U CN202320513315.0U CN202320513315U CN219411578U CN 219411578 U CN219411578 U CN 219411578U CN 202320513315 U CN202320513315 U CN 202320513315U CN 219411578 U CN219411578 U CN 219411578U
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- extrusion block
- bolt
- cover
- fixedly connected
- expansion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model belongs to the technical field of stair railing installation, and discloses a stair railing convenient to install. According to the utility model, the expansion screw is firstly arranged in a drilling hole of a target stair, then the rod body is operated to align the elastic sleeve with the upper part of the expansion screw, the rod body is pressed downwards, the elastic sleeve is sleeved outside the expansion screw, the expansion screw is pre-clamped by utilizing the elastic force of the elastic sleeve, the rod body is kept in a standing state, then the first bolt penetrates into the elastic sleeve, the first bolt is screwed by means of a spanner, the elastic sleeve is tightened by utilizing the first bolt, the elastic sleeve is further clamped and fixed with the expansion screw, and the rod body is pre-fixed and kept standing, so that the first bolt is convenient to screw up, and the installation is convenient.
Description
Technical Field
The utility model belongs to the technical field of stair railing installation, and particularly relates to a stair railing convenient to install.
Background
When the stair railing is installed, holes are drilled in the stair, then the expansion screws are installed in the holes, and then the stair railing and the expansion screws are assembled and fixed to complete the stair railing installation work.
When the expansion screw and the stair railing are assembled, the standing state of the railing is kept by using one hand, the bolt is operated by using the other hand, and meanwhile, the spanner is operated to screw the bolt until the stair railing is fixed, so that the problem of trouble in the conventional stair railing installation process is caused.
For this reason, we propose a stair railing convenient to install to solve the above problems.
Disclosure of Invention
The utility model aims to solve the problem that the conventional stair railing is troublesome in the installation process in the prior art, and provides a stair railing convenient to install.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a stair railing convenient to installation, includes the body of rod, the lower extreme fixedly connected with elasticity cover and the supporting cover of the body of rod, the inside of elasticity cover has inserted the inflation screw, first bolt is installed to the lateral part screw thread of elasticity cover.
Firstly, installing an expansion screw in a drilling hole of a target stair, then operating a rod body to align an elastic sleeve with the upper part of the expansion screw, pressing the rod body downwards, sleeving the elastic sleeve outside the expansion screw, pre-clamping the expansion screw by utilizing the elastic force of the elastic sleeve, enabling the rod body to keep a standing state, penetrating a first bolt into the elastic sleeve, tightening the first bolt by means of a spanner, tightening the elastic sleeve by utilizing the first bolt, enabling the elastic sleeve to further clamp and fix the expansion screw, pre-fixing and standing the rod body, and facilitating the tightening operation of the first bolt, thereby facilitating the installation.
Preferably, the lower part of the rod body is sleeved with a blocking cover, and the blocking cover is sleeved and matched with the supporting cover.
After the first bolt is screwed down, the blocking cover is pulled downwards, so that the blocking cover covers the outer sides of the expansion screw, the elastic sleeve, the first bolt and the supporting cover, and the expansion screw, the elastic sleeve, the first bolt and the supporting cover are conveniently protected.
Preferably, the expansion screw comprises a second bolt, a first nut, an annular buckling seat, an expansion shell, a table-shaped extrusion block and a rotation limiting block, wherein the lower end of the second bolt is fixedly connected to the upper end of the table-shaped extrusion block, the outer wall of the second bolt and the outer wall of the table-shaped extrusion block are movably contacted with the inner wall of the expansion shell, the first nut is mounted outside the second bolt in a threaded manner, the annular buckling seat is movably sleeved outside the second bolt, the lower end of the first nut is fixedly connected to the upper end of the annular buckling seat, the lower end of the annular buckling seat is movably contacted with the upper end of the expansion shell, the rotation limiting block is symmetrically and fixedly connected to the lower portion of the table-shaped extrusion block, and the rotation limiting block is movably embedded in the expansion shell.
After the expansion shell is inserted into the drilling hole of the target stair, the first nut is screwed by means of the wrench, the second bolt is pulled upwards by the first nut, the second bolt drives the table-shaped extrusion block to move upwards, the expansion shell is extruded outwards by the table-shaped extrusion block, the expansion shell is expanded outwards to extrude the drilling hole, the table-shaped extrusion block is limited by the rotation limiting block in the process to prevent the second bolt from rotating along the expansion shell, and the expansion screw and the target stair are convenient to fixedly install.
Preferably, the expansion screw further comprises a guide block fixedly connected to the lower end of the expansion shell.
When the expansion shell is inserted into the borehole, the guide block is used for guiding the expansion shell into the borehole, so that the expansion shell is convenient to insert into the borehole.
Preferably, the expansion screw further comprises a sheath ring, and the sheath ring is fixedly sleeved outside the expansion shell.
After the expansion shell is inserted into the drill hole, friction force between the expansion shell and the drill hole is increased by using the sheath ring, and rotation amplitude in the operation process of the expansion shell is reduced.
Preferably, the elastic sleeve comprises a sleeve body, a second nut, a first extrusion block, a second extrusion block and a guide sleeve, the first extrusion block and the second extrusion block are identical in structural symmetry, the first extrusion block and the second extrusion block are symmetrically and fixedly connected to the inner end of the lower portion of the sleeve body, and the second nut and the guide sleeve are symmetrically and fixedly connected to the outer end of the lower portion of the sleeve body.
The first extrusion block and the second extrusion block are sleeved on the upper part of the annular buckling seat, and then the rod body is pressed downwards, so that the rod body acts on the sleeve body downwards, the lower part of the sleeve body is outwards expanded by utilizing the first extrusion block and the second extrusion block until the first extrusion block and the second extrusion block are clamped at the outer end of the lower part of the annular buckling seat, the elastic force of the sleeve body is utilized to act on the first extrusion block and the second extrusion block, the clamping is kept, and the device is convenient to keep a standing state.
Preferably, the shielding cover comprises a cover body and an elastic sheet, and the elastic sheet is symmetrically and fixedly connected to the upper part of the cover body.
The elastic force of the elastic sheet is used for clamping the elastic sheet outside the rod body, so that the effect of increasing the friction force between the baffle cover and the rod body is achieved, and the stability of the friction force between the baffle cover and the rod body is improved.
In summary, the technical effects and advantages of the present utility model are: 1. firstly, installing an expansion screw in a drilling hole of a target stair, then operating a rod body to align an elastic sleeve with the upper part of the expansion screw, pressing the rod body downwards, sleeving the elastic sleeve outside the expansion screw, pre-clamping the expansion screw by utilizing the elastic force of the elastic sleeve, enabling the rod body to keep a standing state, penetrating a first bolt into the elastic sleeve, tightening the first bolt by means of a spanner, tightening the elastic sleeve by utilizing the first bolt, enabling the elastic sleeve to further clamp and fix the expansion screw, pre-fixing and standing the rod body, and facilitating the tightening operation of the first bolt, thereby facilitating the installation.
2. After the expansion shell is inserted into the drilling hole of the target stair, the first nut is screwed by means of the wrench, the second bolt is pulled upwards by the first nut, the second bolt drives the table-shaped extrusion block to move upwards, the expansion shell is extruded outwards by the table-shaped extrusion block, the expansion shell is expanded outwards to extrude the drilling hole, the table-shaped extrusion block is limited by the rotation limiting block in the process to prevent the second bolt from rotating along the expansion shell, and the expansion screw and the target stair are convenient to fixedly install.
3. The first extrusion block and the second extrusion block are sleeved on the upper part of the annular buckling seat, and then the rod body is pressed downwards, so that the rod body acts on the sleeve body downwards, the lower part of the sleeve body is outwards expanded by utilizing the first extrusion block and the second extrusion block until the first extrusion block and the second extrusion block are clamped at the outer end of the lower part of the annular buckling seat, the elastic force of the sleeve body is utilized to act on the first extrusion block and the second extrusion block, the clamping is kept, and the device is convenient to keep a standing state.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of an expansion screw according to the present utility model;
FIG. 3 is a schematic diagram of the elastic sleeve according to the present utility model;
fig. 4 is a schematic view of a shield structure of the present utility model.
In the figure: 1. a rod body; 2. an expansion screw; 3. an elastic sleeve; 4. a shield; 5. a first bolt; 6. a support cover; 21. a second bolt; 22. a first nut; 23. an annular buckle seat; 24. an expansion shell; 25. a table-shaped extrusion block; 26. a rotation limiting block; 27. a guide block; 28. a leather ring; 31. a sleeve body; 32. a second nut; 33. a first extrusion block; 34. a second extrusion block; 35. guide sleeve; 41. a cover body; 42. and the elastic sheet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1, a stair railing convenient to install includes a rod body 1, an elastic sleeve 3 and a supporting cover 6 are fixedly connected to the lower end of the rod body 1, an expansion screw 2 is inserted into the elastic sleeve 3, and a first bolt 5 is installed on a side thread of the elastic sleeve 3. Firstly, installing an expansion screw 2 in a drilling hole of a target stair, then operating a rod body 1 to align an elastic sleeve 3 with the upper part of the expansion screw 2, pressing the rod body 1 downwards, sleeving the elastic sleeve 3 outside the expansion screw 2, pre-clamping the expansion screw 2 by utilizing the elastic force of the elastic sleeve 3, keeping the rod body 1 in a standing state, penetrating a first bolt 5 into the elastic sleeve 3, screwing the first bolt 5 by means of a spanner, and tightening the elastic sleeve 3 by utilizing the first bolt 5, so that the elastic sleeve 3 further clamps and fixes the expansion screw 2.
Referring to fig. 1, a blocking cover 4 is sleeved at the lower part of the rod body 1, and the blocking cover 4 is sleeved and matched with a supporting cover 6. After the first bolt 5 is screwed down, the blocking cover 4 is pulled downwards, so that the blocking cover 4 covers the outer sides of the expansion screw 2, the elastic sleeve 3, the first bolt 5 and the supporting cover 6, and the effect of protecting the expansion screw 2, the elastic sleeve 3, the first bolt 5 and the supporting cover 6 is achieved.
Referring to fig. 2, the expansion screw 2 includes a second bolt 21, a first nut 22, an annular buckling seat 23, an expansion shell 24, a table-shaped extrusion block 25 and a rotation limiting block 26, wherein the expansion shell 24 is inserted into a borehole of a target stair, the lower end of the second bolt 21 is fixedly connected to the upper end of the table-shaped extrusion block 25, the outer walls of the second bolt 21 and the table-shaped extrusion block 25 are movably contacted with the inner wall of the expansion shell 24, the first nut 22 is mounted on the outer portion of the second bolt 21 in a threaded manner, the annular buckling seat 23 is movably sleeved outside the second bolt 21, the lower end of the first nut 22 is fixedly connected to the upper end of the annular buckling seat 23, the lower end of the annular buckling seat 23 is movably contacted with the upper end of the expansion shell 24, the rotation limiting block 26 is symmetrically and fixedly connected to the lower portion of the table-shaped extrusion block 25, and the rotation limiting block 26 is movably embedded in the expansion shell 24. After the expansion shell 24 is inserted into the drilling hole of the target stair, the first nut 22 is screwed by a spanner, the second bolt 21 is pulled upwards by the first nut 22, the second bolt 21 drives the table-shaped extrusion block 25 to move upwards, the expansion shell 24 is extruded outwards by the table-shaped extrusion block 25, the expansion shell 24 is expanded outwards to extrude the drilling hole, and the table-shaped extrusion block 25 is limited by the rotation limiting block 26 in the process to prevent the second bolt 21 from rotating along the expansion shell 24.
Referring to fig. 2, the expansion screw 2 further includes a guide block 27, and the guide block 27 is fixedly connected to the lower end of the expansion shell 24. When the expansion shell 24 is inserted into the borehole, the expansion shell 24 is guided into the borehole by means of the guide blocks 27.
Referring to fig. 2, the expansion screw 2 further includes a collar 28, and the collar 28 is fixedly sleeved on the outer portion of the expansion shell 24. After the expansion shell 24 is inserted into the borehole, the friction between the expansion shell 24 and the borehole is increased by the skin ring 28, reducing the amplitude of rotation during operation of the expansion shell 24.
Referring to fig. 1, 2 and 3, the elastic sleeve 3 includes a sleeve body 31, a second nut 32, a first extrusion block 33, a second extrusion block 34 and a guide sleeve 35, wherein the upper end of the sleeve body 31 is fixedly connected to the lower end of the rod body 1, the first extrusion block 33 and the second extrusion block 34 are clamped outside the annular buckling seat 23, the first extrusion block 33 and the second extrusion block 34 have the same structure, the first extrusion block 33 and the second extrusion block 34 are symmetrically and fixedly connected to the inner end of the lower portion of the sleeve body 31, and the second nut 32 and the guide sleeve 35 are symmetrically and fixedly connected to the outer end of the lower portion of the sleeve body 31. The first extrusion block 33 and the second extrusion block 34 are sleeved on the upper part of the annular buckling seat 23, then the rod body 1 is pressed downwards, so that the rod body 1 acts on the sleeve body 31 downwards, the lower part of the sleeve body 31 is guided to expand outwards by the first extrusion block 33 and the second extrusion block 34 until the first extrusion block 33 and the second extrusion block 34 are clamped at the outer end of the lower part of the annular buckling seat 23, the elastic force of the sleeve body 31 acts on the first extrusion block 33 and the second extrusion block 34, and the clamping is kept, so that the device is kept in a standing state.
Referring to fig. 1 and 4, the shielding cover 4 includes a cover 41 and a spring 42, the cover 41 is movably sleeved outside the rod body 1, the spring 42 is movably contacted with the rod body 1, and the spring 42 is symmetrically and fixedly connected to the upper portion of the cover 41. The elastic force of the elastic sheet 42 is used to clamp the rod body 1, so as to increase the friction force between the baffle cover 4 and the rod body 1.
Working principle: after the expansion shell 24 is inserted into a borehole of a target stair, the first nut 22 is screwed by means of a spanner, the second bolt 21 is pulled upwards through the first nut 22, the second bolt 21 drives the table-shaped extrusion block 25 to move upwards, the expansion shell 24 is extruded outwards by the table-shaped extrusion block 25, the expansion shell 24 is expanded outwards to extrude the borehole, the table-shaped extrusion block 25 is limited to prevent the second bolt 21 from rotating along the expansion shell 24 in the process by the rotation limiting block 26, the first extrusion block 33 and the second extrusion block 34 are sleeved on the upper part of the annular buckling seat 23, then the rod body 1 is pressed downwards, the rod body 1 acts on the sleeve body 31 downwards, the lower part of the sleeve body 31 is guided to expand outwards by the first extrusion block 33 and the second extrusion block 34 until the first extrusion block 33 and the second extrusion block 34 are clamped at the outer end of the lower part of the annular buckling seat 23, the elastic force of the sleeve body 31 acts on the first extrusion block 33 and the second extrusion block 34, and the clamping is kept, and the device is kept in a standing state.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
The application direction is simply mentioned in the description for the prior art that the present utility model is known to those skilled in the art and has not changed, and the complete technology is formed by combining the present utility model; techniques well known to those skilled in the art to avoid undue popularity are employed to assist those skilled in the art in quickly understanding the broad teachings of the present utility model.
Claims (7)
1. Stair railing convenient to installation, including body of rod (1), its characterized in that: the lower extreme fixedly connected with elasticity cover (3) and support cover (6) of body of rod (1), the inside of elasticity cover (3) is inserted and is expanded screw (2), first bolt (5) are installed to the lateral part screw thread of elasticity cover (3).
2. A stair railing for facilitating installation according to claim 1, wherein: the lower part of the rod body (1) is sleeved with a blocking cover (4), and the blocking cover (4) is sleeved and matched with the supporting cover (6).
3. A stair railing for facilitating installation according to claim 1, wherein: the expansion screw (2) comprises a second bolt (21), a first nut (22), an annular buckling seat (23) and an expansion shell (24), a table-shaped extrusion block (25) and a rotation limiting block (26), wherein the lower end of the second bolt (21) is fixedly connected to the upper end of the table-shaped extrusion block (25), the outer wall of the second bolt (21) and the outer wall of the table-shaped extrusion block (25) are movably contacted with the inner wall of the expansion shell (24), the first nut (22) is arranged outside the second bolt (21) in a threaded manner, the annular buckling seat (23) is movably sleeved outside the second bolt (21), the lower end of the first nut (22) is fixedly connected to the upper end of the annular buckling seat (23), the lower end of the annular buckling seat (23) is movably contacted with the upper end of the expansion shell (24), the rotation limiting block (26) is symmetrically and fixedly connected to the lower portion of the table-shaped extrusion block (25), and the rotation limiting block (26) is movably embedded inside the expansion shell (24).
4. A stair railing for facilitating installation according to claim 3, wherein: the expansion screw (2) further comprises a guide block (27), and the guide block (27) is fixedly connected to the lower end of the expansion shell (24).
5. A stair railing for facilitating installation according to claim 3, wherein: the expansion screw (2) further comprises a leather ring (28), and the leather ring (28) is fixedly sleeved outside the expansion shell (24).
6. A stair railing for facilitating installation according to claim 1, wherein: the elastic sleeve (3) comprises a sleeve body (31), a second nut (32), a first extrusion block (33), a second extrusion block (34) and a guide sleeve (35), the first extrusion block (33) and the second extrusion block (34) are identical in structural symmetry, the first extrusion block (33) and the second extrusion block (34) are symmetrically and fixedly connected to the inner end of the lower portion of the sleeve body (31), and the second nut (32) and the guide sleeve (35) are symmetrically and fixedly connected to the outer end of the lower portion of the sleeve body (31).
7. A stair railing for facilitating installation according to claim 2, wherein: the shielding cover (4) comprises a cover body (41) and an elastic sheet (42), and the elastic sheet (42) is symmetrically and fixedly connected to the upper portion of the cover body (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513315.0U CN219411578U (en) | 2023-03-15 | 2023-03-15 | Stair railing convenient to installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320513315.0U CN219411578U (en) | 2023-03-15 | 2023-03-15 | Stair railing convenient to installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219411578U true CN219411578U (en) | 2023-07-25 |
Family
ID=87241020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320513315.0U Active CN219411578U (en) | 2023-03-15 | 2023-03-15 | Stair railing convenient to installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219411578U (en) |
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2023
- 2023-03-15 CN CN202320513315.0U patent/CN219411578U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |