Height-adjustable elevator guardrail

Abstract

The utility model discloses a height-adjustable elevator guardrail, which is applied to the technical field of elevators, and is characterized in that the guardrail is shifted to drive a rhombic block to move, and the direction of force applied by the rhombic block and an inclined surface of a conical latch is changed, so that the rhombic block is clamped between two clamping plates to be fixed, and the height of the guardrail is fixed; the effect of conveniently and rapidly adjusting the height of the elevator guardrail is achieved, and actual use is facilitated; when the clamping blocks move to the positions of the clamping and fixing grooves, the clamping blocks can be clamped and fixed in the guardrails, then the extending handrails are rotated to enable the clamping blocks to move to the positions of the sliding grooves, and therefore the top ends of the extending handrails can be pulled out of the guardrails in a sliding mode, and then the supporting handrails are detached from the top of the bottom plate. And the function that the bent handrail of the elevator guardrail can be independently detached and replaced is achieved, and practicability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevators, and particularly relates to an elevator guardrail with adjustable height. Background Art

[0002] The elevator guardrail is used to prevent elevator maintenance personnel from accidentally falling into the shaft when performing maintenance on the components on the car top. It is a lifeline for elevator maintenance personnel when performing maintenance on the car top.

[0003] At present, the Chinese utility model with the publication number of CN214780047U discloses an elevator guardrail with adjustable height, which is installed on the car top and includes a fixed base, a movable screw, a plurality of bracket structures and a plurality of cross rails; the movable screw is fixed to the fixed base by a spiral connection, the bracket structure is fixed to the movable screw, the bracket structure can move up and down along the movable screw, and the cross rails are fixed to the bracket structure; the fixed base is fixed to the car top. When the elevator is running and when the elevator is being repaired, the elevator guardrail can be adjusted to different heights. When the height of the hoistway is limited, it does not affect the normal use of the elevator or the maintenance of the elevator. The height of the guardrail can be adjusted by adjusting the height of the movable screw on the fixed base and positioning the bracket structure on the movable screw, and the adjustment is convenient.

[0004] Existing elevator guardrails are generally divided into automatic height adjustment and manual height adjustment. Manual height adjustment is relatively common due to its low cost. However, since the manually adjusted elevator guardrail needs to be manually tightened after the adjustment is completed, and the fasteners need to be removed in advance for the next adjustment, it is more troublesome to use in practice. At the same time, existing elevator guardrails are generally welded together, and the elevator guardrail is very easy to cause the middle railing to be hit and bent during use, affecting its use. If the railing is replaced, the entire elevator guardrail needs to be replaced, which is costly. Utility Model Content

[0005] The utility model aims to provide an elevator guardrail with adjustable height, which has the advantages of being convenient for quickly adjusting the height of the elevator guardrail and being able to remove and replace the bent railings of the elevator guardrail separately.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an elevator guardrail with adjustable height, including a base plate, both ends of the top of the base plate are fixedly connected to support columns, a clamping plate is slidably connected to the inside of the support column, a spring is fixedly connected to the side where the support column and the clamping plate are close to each other, a guardrail is arranged on the top of the base plate, both ends of the guardrail close to the support column are fixedly connected to diamond blocks, and a conical clamping tooth which is clamped with the diamond block is provided on the side of the clamping plate away from the support column.

[0007] By adopting the above technical scheme, the diamond block is driven to move by toggling the guardrail and the direction of the force is changed with the inclined surface of the conical clamping tooth, so that the two clamping plates clamp the diamond block in the middle for fixing, and then the height of the guardrail is fixed, so that the effect of quickly adjusting the height of the elevator guardrail is achieved, which is convenient for practical use; when the clamping block moves to the position of the clamping groove, it can be clamped inside the guardrail, and then the extended railing is rotated to move the clamping block to the position of the sliding groove, so that the top end of the extended railing can be slid out of the guardrail, and then the supporting railing can be removed from the top of the bottom plate; the function of removing and replacing the bent railing of the elevator guardrail separately is achieved, which improves practicality.

[0008] The utility model is further configured as follows: a supporting railing and an extending railing are respectively arranged between the top of the base plate and the guardrail, the extending railing is slidably connected to the inside of the supporting railing, a clamping block is fixedly connected to the top of the extending railing, a sliding groove slidably engaged with the clamping block is provided on one side of the bottom of the guardrail, and a fixing groove clamped with the clamping block is provided on the other side of the inside of the extending railing.

[0009] By adopting the above technical solution, the bent railings of the elevator guardrail can be removed and replaced individually, thereby improving practicality.

[0010] The utility model is further configured as follows: an anti-slip sleeve is fixedly sleeved on the surface of the guardrail.

[0011] The above technical solution is adopted to improve friction and facilitate holding.

[0012] The utility model is further configured as follows: a positioning slide rod which is slidably connected to and penetrates through the clamping plate is fixedly connected inside the support column.

[0013] By adopting the above technical solution, the sliding of the clamping plate is positioned to improve the sliding stability.

[0014] The utility model is further configured as follows: the top of the bottom plate is fixedly connected with a mounting screw which is threadedly connected with the bottom of the supporting railing.

[0015] By adopting the above technical solution, the support railing can be installed and disassembled by rotating on the surface of the mounting screw.

[0016] The utility model is further configured as follows: magnet blocks which are magnetically connected to each other are fixedly connected between the clamping block and the guardrail.

[0017] By adopting the above technical solution, the clamping block is fixed inside the clamping groove by the magnet block to prevent accidental rotation.

[0018] The utility model is further configured as follows: the bottom plate and the guardrail are both in the shape of a C-shaped rod.

[0019] The above technical solution is adopted to improve the stability of the elevator guardrail and avoid tipping over.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. The guardrail is moved to drive the diamond block to move and the direction of the force is changed with the inclined surface of the conical clamping teeth, so that the two clamping plates clamp the diamond block in the middle to fix it, and then the height of the guardrail is fixed, which realizes the effect of quickly adjusting the height of the elevator guardrail and is convenient for practical use;

[0022] 2. When the clamping block is moved to the position of the clamping groove, it can be clamped inside the guardrail, and then the extended railing is rotated to move the clamping block to the position of the sliding groove, so that the top end of the extended railing can be slid out of the guardrail, and then the supporting railing can be removed from the top of the bottom plate; the function of removing and replacing the bent railing of the elevator guardrail separately is achieved, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a cross-sectional view of the structural support column of the utility model;

[0025] Figure 3 It is a cross-sectional view of the structural support railing of the utility model;

[0026] Figure 4 This utility model Figure 2 A magnified view of point A in the figure;

[0027] Figure 5 This utility model Figure 3 Enlarged view of point B in .

[0028] Figure numerals: 1. Base plate; 2. Support column; 3. Clamping plate; 4. Spring; 5. Guardrail; 6. Diamond block; 7. Conical clamping tooth; 8. Support railing; 9. Extension railing; 10. Sliding groove; 11. Block; 12. Fixing groove; 13. Anti-slip sleeve; 14. Positioning slide rod; 15. Mounting screw; 16. Magnet block. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1:

[0031] refer to Figure 1 , Figure 2 , Figure 4, an elevator guardrail with adjustable height, comprising a bottom plate 1, both ends of the top of the bottom plate 1 are fixedly connected with support columns 2, a clamping plate 3 is slidably connected inside the support column 2, a spring 4 is fixedly connected to the side where the support column 2 and the clamping plate 3 are close to each other, a guardrail 5 is arranged on the top of the bottom plate 1, both ends of the guardrail 5 close to the support column 2 are fixedly connected with diamond blocks 6, and a conical clamping tooth 7 engaged with the diamond block 6 is provided on the side of the clamping plate 3 away from the support column 2; the diamond block 6 is driven to move by toggling the guardrail 5 and the direction of the force is changed with the inclined surface of the conical clamping tooth 7, so that the two clamping plates 3 clamp the diamond block 6 in the middle for fixing, and then the height of the guardrail 5 is fixed, so as to achieve the effect of facilitating the rapid adjustment of the height of the elevator guardrail and facilitate practical use.

[0032] refer to Figure 1 The surface of the guardrail 5 is fixedly sleeved with an anti-slip sleeve 13 to increase friction and facilitate holding.

[0033] refer to Figure 2 A positioning slide bar 14 is fixedly connected inside the support column 2 and is slidably connected to the clamping plate 3 to position the sliding of the clamping plate 3 and improve the sliding stability.

[0034] A brief description of the usage process: manually drive the guardrail 5 to move upward or downward to overcome the elastic force of the spring 4, so that the guardrail 5 drives the diamond block 6 to slide between the two clamping plates 3 and the conical tooth 7, so that the inclined surfaces of the diamond block 6 and the conical tooth 7 change the direction of the force, thereby pushing the clamping plate 3 into the interior of the support column 2 to compress the spring 4, and finally, through the rebound force of the spring 4, the two clamping plates 3 clamp the diamond block 6 in the middle to fix it, thereby fixing the height of the guardrail 5.

[0035] Embodiment 2:

[0036] refer to Figure 1 , Figure 3 , Figure 5 , an elevator guardrail with adjustable height, a supporting railing 8 and an extending railing 9 are respectively arranged between the top of the bottom plate 1 and the guardrail 5, the extending railing 9 is slidably connected to the inside of the supporting railing 8, and a clamping block 11 is fixedly connected to the top of the extending railing 9, and a sliding groove 10 slidably plugged with the clamping block 11 is opened on one side of the bottom of the guardrail 5, and a fixing groove 12 clamped with the clamping block 11 is opened on the other side of the inside of the extending railing 9; when the clamping block 11 moves to the position of the fixing groove 12, it can be clamped in the inside of the guardrail 5, and then the extending railing 9 is rotated to make the clamping block 11 move to the position of the sliding groove 10, so that the top end of the extending railing 9 can slide out of the guardrail 5, and then the supporting railing 8 is removed from the top of the bottom plate 1; the function of removing and replacing the bent railing of the elevator guardrail separately is achieved, thereby improving practicality.

[0037] refer to Figure 5 A magnet block 16 that is magnetically connected to each other is fixedly connected between the clamping block 11 and the guardrail 5. The clamping block 11 is fixed inside the clamping groove 12 by the magnet block 16 to prevent accidental rotation.

[0038] refer to Figure 1 The bottom plate 1 and the guardrail 5 are both C-shaped rods, which improve the stability of the elevator guardrail and avoid tipping.

[0039] refer to Figure 3 The top of the base plate 1 is fixedly connected with a mounting screw 15 which is threadedly connected to the bottom of the support rail 8 . The support rail 8 can be installed and removed by rotating on the surface of the mounting screw 15 .

[0040] A brief description of the usage process: the extended railing 9 slides up and down inside the supporting railing 8 so that it can change with the height change of the guardrail 5. At the same time, the extended railing 9 is rotated to move the block 11 to the position of the sliding groove 10, so that the top of the extended railing 9 can be slid into the guardrail 5. At the same time, the reverse rotation moves the block 11 to the position of the fixing groove 12, and the block 11 is fixed inside through the fixing groove 12, so that the extended railing 9 can be fixedly installed, and the supporting railing 8 can be installed and disassembled by rotating on the surface of the mounting screw 15.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An elevator guardrail with adjustable height, comprising a bottom plate (1), characterized in that: The two ends of the top of the bottom plate (1) are fixedly connected to support columns (2), the interior of the support column (2) is slidably connected to a clamping plate (3), the sides of the support column (2) and the clamping plate (3) close to each other are fixedly connected to springs (4), a guardrail (5) is arranged on the top of the bottom plate (1), the two ends of the guardrail (5) close to the support column (2) are fixedly connected to diamond blocks (6), and the side of the clamping plate (3) away from the support column (2) is provided with a conical clamping tooth (7) clamped with the diamond block (6).

2. The height-adjustable elevator guardrail according to claim 1, characterized in that: A support rail (8) and an extension rail (9) are respectively arranged between the top of the base plate (1) and the guardrail (5); the extension rail (9) is slidably connected to the inside of the support rail (8); a clamping block (11) is fixedly connected to the top of the extension rail (9); a sliding groove (10) slidably plugged with the clamping block (11) is provided on one side of the bottom of the guardrail (5); and a fixing groove (12) clamped with the clamping block (11) is provided on the other side of the inside of the extension rail (9).

3. The height-adjustable elevator guardrail according to claim 1, characterized in that: An anti-slip sleeve (13) is fixedly sleeved on the surface of the guardrail (5).

4. The height-adjustable elevator guardrail according to claim 1, characterized in that: A positioning slide rod (14) is fixedly connected inside the support column (2) and is slidably connected to the clamping plate (3).

5. The height-adjustable elevator guardrail according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected with a mounting screw (15) which is threadedly connected to the bottom of the support rail (8).

6. The height-adjustable elevator guardrail according to claim 2, characterized in that: A magnet block (16) that is magnetically connected to each other is fixedly connected between the clamping block (11) and the guardrail (5).

7. The height-adjustable elevator guardrail according to claim 1, characterized in that: The bottom plate (1) and the guardrail (5) are both C-shaped rods in appearance.

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