Buffering type steel structure stair guardrail

Abstract

The utility model discloses a buffering type steel structure stair guardrail, and belongs to the technical field of safety engineering. The guardrail comprises a handrail, a mounting block, a connecting block, a mounting column, a moving column, a buffering mechanism and an adjusting mechanism, wherein the fixed top of the mounting block is mounted on the handrail; the connecting block is rotationally mounted on the mounting block; the mounting column is arranged on a stair; the buffer mechanism comprises a shell arranged at the top of the moving column, a pressing column arranged at the bottom of the connecting block and inserted into the shell, a moving plate arranged at the bottom of the pressing column and slidably attached to the inner wall of the shell, and a limiting column arranged on the moving plate; through cooperative use of the devices, the handrail can stably move downwards through buffering when being subjected to external pressure, and can quickly return to the original position after the pressure is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety engineering, and particularly relates to a buffer-type steel structure staircase guardrail. Background Art

[0002] A steel structure staircase guardrail refers to a safety protection facility used on both sides of a steel staircase. It is usually made of steel and can include components such as columns, handrails, and crossbeams. The steel structure staircase guardrail not only plays a role in protecting users from falling injuries, but also is widely used in commercial buildings, industrial facilities, residences, and public places due to its firm durability and modern appearance.

[0003] Normally, the guardrail is directly installed on the staircase. In daily life, people often rely on the handrail to enhance their stability and sense of security when going up and down the stairs. There are differences in the grip strength of different individuals. Some people only need to gently touch the handrail, while some people may need to use the handrail for leverage. This continuous force acting on the handrail, without appropriate buffering measures, may cause the fixing components between the entire guardrail and the staircase to become loose over time, thereby affecting the overall stability of the handrail.

[0004] Therefore, the utility model provides a buffer-type steel structure staircase guardrail to solve the above problems. Summary of the Utility Model

[0005] The utility model provides a buffer-type steel structure staircase guardrail, aiming to solve the problems raised in the background art.

[0006] To achieve the above object, the utility model provides the following technical solution: A buffer-type steel structure staircase guardrail, which includes a handrail, a mounting block fixedly installed on the handrail, a connecting block rotatably installed on the mounting block, a mounting column provided on the staircase, a moving column slidably installed inside the mounting column, a buffer mechanism provided at the bottom of the connecting block, and an adjusting mechanism provided inside the moving column.

[0007] The buffer mechanism includes a housing provided at the top of the moving column, a pressing column provided at the bottom of the connecting block and inserted into the housing, a moving plate provided at the bottom of the pressing column and slidably fitted to the inner wall of the housing, a limiting column provided on the moving plate, a moving ring slidably installed on the limiting column and fitted to the moving plate, and a first spring provided at the top of the housing and connected to one end of the pressing column close to the connecting block.

[0008] Further, in the above buffer-type steel structure staircase guardrail, the adjusting mechanism includes an adjusting rod slidably installed inside the moving column, a second spring provided on the inner wall of the moving column and connected to one side of the adjusting rod, a connecting column provided on one side of the adjusting rod and passing through the moving column and the mounting column, and a pressing block rotatably installed at the end of the connecting column away from the adjusting rod.

[0009] Furthermore, in the above-mentioned buffer-type steel structure staircase guardrail, a sliding groove for the connection column to slide is provided on the installation column, and a limiting strip that fits against the pressing block is connected to the installation column.

[0010] Furthermore, in the above-mentioned buffer-type steel structure staircase guardrail, the adjusting rod sequentially penetrates through the moving column and the installation column, and an adjusting groove for the adjusting rod to slide and for fixing the moving column is provided on the installation column.

[0011] Furthermore, in the above-mentioned buffer-type steel structure staircase guardrail, a plurality of uniformly distributed circular liquid leakage openings are provided on the moving ring, a plurality of uniformly distributed strip-shaped liquid leakage openings are provided on the moving plate, and a plurality of limiting columns are provided, and the plurality of limiting columns are distributed in a circular array.

[0012] Furthermore, in the above-mentioned buffer-type steel structure staircase guardrail, a protective shell is connected to the top of the outer shell, and the protective shell is sleeved outside the pressing column and the first spring.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The structure of the present utility model is simple and convenient to use. Through the settings of the pressing column, the first spring, the moving plate and the moving ring, when the handrail is subjected to an external pressure, it can move down smoothly through buffering and can quickly return to its original position after the pressure is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a buffer-type steel structure staircase guardrail;

[0016] Figure 2 It is an installation schematic diagram of the pressing column in a buffer-type steel structure staircase guardrail;

[0017] Figure 3 It is an installation schematic diagram of the adjusting rod in a buffer-type steel structure staircase guardrail;

[0018] Figure 4 It is a sectional view of the installation column in a buffer-type steel structure staircase guardrail;

[0019] Figure 5 It is a sectional view of the outer shell in a buffer-type steel structure staircase guardrail;

[0020] Figure 6 It is an installation schematic diagram of the limiting strip in a buffer-type steel structure staircase guardrail.

[0021] In the figure:

[0022] 1. Handrail; 2. Mounting block; 3. Connecting block; 4. Pressing column; 5. First spring; 6. Moving plate; 7. Limiting column; 8. Moving ring; 9. Outer shell; 10. Protective shell; 11. Moving column; 12. Mounting column; 13. Limiting strip; 14. Adjusting rod; 15. Second spring; 16. Connecting column; 17. Pressing block. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] The present invention provides a buffer-type steel structure staircase guardrail, as Figure 1 , Figure 2 and Figure 5 shown. The guardrail includes a handrail 1, a mounting block 2 fixedly mounted on the handrail 1, a connecting block 3 rotatably mounted on the mounting block 2, a mounting column 12 provided on the staircase, a moving column 11 slidably mounted inside the mounting column 12, a buffer mechanism provided at the bottom of the connecting block 3, and an adjusting mechanism provided inside the moving column 11.

[0025] The buffer mechanism includes an outer shell 9 provided at the top of the moving column 11, a pressing column 4 provided at the bottom of the connecting block 3 and inserted into the inside of the outer shell 9, a moving plate 6 provided at the bottom of the pressing column 4 and slidably fitted to the inner wall of the outer shell 9, a limiting column 7 provided on the moving plate 6, a moving ring 8 slidably mounted on the limiting column 7 and fitted to the moving plate 6, and a first spring 5 provided at the top of the outer shell 9 and connected to one end of the pressing column 4 close to the connecting block 3.

[0026] A plurality of uniformly distributed circular liquid leakage ports are provided on the moving ring 8, a plurality of uniformly distributed strip-shaped liquid leakage ports are provided on the moving plate 6, and a plurality of limiting columns 7 are provided, and the plurality of limiting columns 7 are arranged in a circular array.

[0027] When the handrail 1 is subjected to external pressure, the buffer mechanism at its bottom will immediately work to drive the handrail 1 to move downward. Specifically, the pressing column 4 drives the moving plate 6 at its bottom to perform a vertical downward movement in the space formed by the inner wall of the outer shell 9. The inside of the outer shell 9 is filled with a liquid medium, and the joint between the outer shell 9 and the pressing column 4 is relatively tight, ensuring the liquid tightness and thus avoiding performance loss caused by leakage.

[0028] The moving plate 6 divides the internal space in the outer shell 9 into two chambers with dynamically changing volumes. When the moving plate 6 moves downward, due to the pressure exerted by the liquid on it, the moving ring 8 at its bottom will closely adhere to the moving plate 6, while blocking the liquid leakage groove opened on the moving plate 6 itself. However, the moving ring 8 still has smaller liquid leakage grooves, which ensures the effective flow and transfer of the liquid during the buffering process.

[0029] When the external pressure on the armrest 1 is released, with the help of the elastic potential energy stored in the first spring 5, the pressure column 4 rebounds to its initial position. During this process, as the pressure column 4 moves upward, the moving plate 6 also rises synchronously. At this time, under the pressure of the liquid in the upper chamber, the larger liquid leakage grooves originally blocked by the moving ring 8 on the moving plate 6 are opened, enabling the liquid in the upper chamber to quickly flow into the lower chamber through these larger liquid leakage grooves.

[0030] The size of the liquid discharge groove opened on the moving ring 8 is smaller than that on the moving plate 6. Such a design can enable the armrest 1 to move downward slowly and smoothly when subjected to external pressure, and can quickly return to its original position after the pressure is released.

[0031] Exemplarily, in order to make the height of the guardrail adjustable, as Figure 1 、 Figure 3 、 Figure 4 and Figure 6 shown, the adjusting mechanism includes an adjusting rod 14 slidably installed inside the moving column 11, a second spring 15 provided on the inner wall of the moving column 11 and connected to one side of the adjusting rod 14, a connecting column 16 provided on one side of the adjusting rod 14 and passing through the moving column 11 and the mounting column 12, and a pressing block 17 rotatably installed at the end of the connecting column 16 away from the adjusting rod 14.

[0032] The mounting column 12 is provided with a sliding groove for the connecting column 16 to slide, and the mounting column 12 is connected with a limiting strip 13 that fits with the pressing block 17.

[0033] The adjusting rod 14 passes through the moving column 11 and the mounting column 12 in sequence, and the mounting column 12 is provided with an adjusting groove for the adjusting rod 14 to slide and for fixing the moving column 11.

[0034] The height of the moving column 11 can be adjusted according to specific usage conditions. The adjusting rod 14 can be used to adjust the height of the moving column 11 and also to fix the moving column 11. The adjusting groove opened on the mounting column 12 is serrated, and its feature is that there is a groove at each small interval for stabilizing the adjusting rod 14.

[0035] When adjusting the height, the operator simply pulls the moving column 11 upward to change its position. During this process, the adjusting rod 14 will move periodically along the preset sliding grooves on the moving column 11 and the mounting column 12. Affected by the second spring 15, it will continuously pull the adjusting rod 14 into the groove, thereby fixing the moving column 11. If the height is not appropriate, continue to pull the moving column 11 to adjust it.

[0036] The limiting strip 13 is installed at the edge of the sliding groove, but its overall length is less than that of the sliding groove. There is a certain distance between the two ends of the limiting strip 13 and the two ends of the sliding groove. Normally, there is no need to adjust the pressing block 17. When the moving column 11 is adjusted to the highest position and needs to be reset to the lowest position, the pressing block 17 is required to achieve the reset. At this time, the pressing block 17 has no connection with the limiting strip 13. Rotate the pressing block 17 by 90 degrees and then press the pressing block 17. Push the adjusting rod 14 forward through the connecting column 16 to make the moving column 11 in a movable state. While keeping pressing the pressing block 17, press the moving column 11 downward for a short distance so that the pressing block 17 is stuck in the groove of the limiting strip 13. At this time, only press the moving column 11 until it reaches the bottom. After the moving column 11 reaches the bottom, under the action of the second spring 15, the adjusting rod 14 can be reset, thereby driving the pressing block 17 to reset. At this time, the height of the moving column 11 can be adjusted again.

[0037] Exemplarily, in order to improve the stability of the pressing column 4 during operation, as Figure 1 、 Figure 2 and Figure 5 shown, a protective shell 10 is connected to the top of the outer shell 9, and the protective shell 10 is sleeved outside the pressing column 4 and the first spring 5.

[0038] In order to enable the first spring 5 and the pressing column 4 to operate normally without external interference, a protective shell 10 is sleeved outside them. The protective shell 10 can effectively block various potential interfering substances from the outside world, such as garbage, dust or liquid, etc. Such a design not only improves the stability of the parts during operation, but also greatly reduces the risk of functional failure caused by changes in the external environment, ensuring that they can work in the best state, thereby improving the reliability and durability of the entire device.

[0039] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A buffer type steel structure stair guardrail, characterized by: The guardrail comprises a handrail (1), a mounting block (2) arranged on the handrail (1), a connecting block (3) rotatably mounted on the mounting block (2), a mounting column (12) arranged on the stairs, a moving column (11) slidably mounted inside the mounting column (12), a buffer mechanism arranged at the bottom of the connecting block (3), and an adjusting mechanism arranged inside the moving column (11); The buffer mechanism comprises a shell (9) arranged at the top of the movable column (11), a pressure column (4) arranged at the bottom of the connecting block (3) and inserted into the inside of the shell (9), a movable plate (6) arranged at the bottom of the pressure column (4) and slidably fitted to the inner wall of the shell (9), a limiting column (7) arranged on the movable plate (6), a movable ring (8) slidably mounted on the limiting column (7) and fitted to the movable plate (6), and a first spring (5) arranged at the top of the shell (9) and connected to one end of the pressure column (4) close to the connecting block (3).

2. The buffer steel structure stair guardrail according to claim 1 is characterized by: The adjustment mechanism comprises an adjustment rod (14) slidably mounted inside the movable column (11), a second spring (15) arranged on the inner wall of the movable column (11) and connected to one side of the adjustment rod (14), a connecting column (16) arranged on one side of the adjustment rod (14) and passing through the movable column (11) and the mounting column (12), and a pressure block (17) rotatably mounted on the connecting column (16) at one end away from the adjustment rod (14).

3. The buffer type steel structure stair guardrail according to claim 2 is characterized by: The installation column (12) is provided with a sliding groove for the connecting column (16) to slide, and the installation column (12) is connected to a limiting strip (13) that fits the pressing block (17).

4. The buffer-type steel structure stair guardrail according to claim 2 is characterized by: The adjusting rod (14) passes through the moving column (11) and the mounting column (12) in sequence, and the mounting column (12) is provided with an adjusting groove for the adjusting rod (14) to slide and for fixing the moving column (11).

5. The buffer-type steel structure stair guardrail according to claim 1 is characterized by: The movable ring (8) is provided with a plurality of evenly distributed circular liquid leakage openings, the movable plate (6) is provided with a plurality of evenly distributed strip-shaped liquid leakage openings, a plurality of the limiting columns (7) are provided, and the plurality of the limiting columns (7) are distributed in a ring array.

6. The buffer steel structure stair guardrail according to claim 1 is characterized by: The top of the outer shell (9) is connected to a protective shell (10), and the protective shell (10) is sleeved on the outside of the pressure column (4) and the first spring (5).

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