Guardrail structure for elevator car

Abstract

The guardrail structure for the elevator car comprises a car top plate, a fixing plate is fixedly installed on the top of the car top plate, two installation holes are formed in the front end of the fixing plate, two rotating shafts are rotatably installed in the fixing plate, and linkage gears and extrusion discs are fixedly connected to the two rotating shafts in a sleeved mode. Two mounting holes are formed in the fixing plate, sliding rods are fixedly mounted in the two mounting holes, sliding sleeves are slidably connected to the two sliding rods in a sleeving mode, guardrails are fixedly mounted at one ends of the two sliding sleeves, the same connecting plate is fixedly mounted at the other ends of the two sliding sleeves, a lead screw is rotationally mounted in the fixing plate, and a linkage rack meshed with the two linkage gears at the same time is connected to the lead screw in a threaded sleeving mode; and the lead screw is fixedly sleeved with a limiting gear. The guardrail structure for the elevator car is simple in structure and convenient to use, the height of the guardrail can be conveniently adjusted, and engineers with different heights can conveniently support and use the guardrail structure for the elevator car.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field, concretely is a kind of guardrail structure for elevator car. BACKGROUND

[0002] As a kind of public transport, more and more popular, in order to ensure the safe operation of elevator, must be overhauled on time, and the guardrail of car roof protection part is indispensable safety component for protecting the maintenance personnel on the roof to overhaul. The existing new engineer stands on the roof, may be dizzy when the car moves, body will involuntary sway, to ensure safety will hold on the guardrail, but due to the height of engineer, different height of support, novice engineer on the roof can appear unstable, threaten the personal safety of novice engineer.

[0003] Therefore, the utility model provides a kind of guardrail structure for elevator car. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of guardrail structure for elevator car, to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of guardrail structure for elevator car, including car roof,

[0006] The top of the car roof is fixedly installed with a fixed plate, two mounting holes are formed in the front end of the fixed plate, and two rotating shafts are rotatably installed in the fixed plate, a linkage gear and an extrusion disc are fixedly sleeved on the two rotating shafts, a sliding rod is fixedly installed in the two mounting holes, a sliding sleeve is slidably sleeved on the two sliding rods, a guardrail is fixedly installed on one end of the two sliding sleeves, and the other end of the two sliding sleeves is fixedly installed with the same adapter plate.

[0007] A lead screw is rotatably installed in the fixed plate, and a linkage rack that is simultaneously engaged with the two linkage gears is threadedly sleeved on the lead screw.

[0008] A limit gear is fixedly sleeved on the lead screw, an installation rod is fixedly installed in the fixed plate, a locking bolt is threadedly installed on the top of the fixed plate, a through hole is formed in the installation rod, a vertical rod is movably installed in the through hole, a limit rack is fixedly installed at the bottom end of the vertical rod, and the bottom end of the locking bolt is rotatably connected with the vertical rod.

[0009] Preferably, one end of the lead screw is fixedly sleeved with a crank handle.

[0010] The above technical scheme is adopted, the lead screw is conveniently rotated by crank handle.

[0011] Preferably, the top end of the locking bolt is fixedly sleeved with a knob.

[0012] Adopting the technical scheme, the knob is convenient for rotating the locking bolt.

[0013] Preferably, the fixed plate is internally fixed with a sliding rail, and a sliding block is slidingly installed on the sliding rail and fixedly connected with the linkage rack.

[0014] Adopting the technical scheme, the sliding rail and the sliding block are convenient for moving the linkage rack.

[0015] Preferably, the vertical rod is sleeved with a second spring, one end of the second spring is fixed on the vertical rod, and the other end of the second spring is fixed on the inner wall of the through hole.

[0016] Adopting the technical scheme, the second spring is convenient for resetting the vertical rod.

[0017] Preferably, the two rotating shafts are respectively located at eccentric positions of the corresponding extrusion discs.

[0018] Adopting the technical scheme, the two extrusion discs can function as cams.

[0019] Preferably, the two sliding rods are each sleeved with a first spring, one end of each of the two first springs is fixed on the corresponding sliding rod, and the other end of each of the two first springs is fixed on the corresponding sliding sleeve.

[0020] Adopting the technical scheme, the first spring is convenient for resetting the sliding sleeve.

[0021] Preferably, the top of the base is fixedly installed with guide columns on both sides, and the two guardrails are slidingly sleeved on the corresponding guide columns.

[0022] Adopting the technical scheme, the guide columns are convenient for stably moving the two guardrails up and down, and the stability of the overall structure is improved.

[0023] Compared with the prior art, the guardrail height adjusting device has the advantages that: in order to conveniently adjust the use height of the guardrails, firstly, rotating the handle drives the rotation of the lead screw, the lead screw drives the horizontal movement of the linkage rack, the movement of the linkage rack drives the rotation of the two linkage gears, the rotation of the two linkage gears drives the rotation of the two rotating shafts, the two extrusion discs extrude the link plates, the upward movement of the link plates is driven, the upward movement of the two guardrails is driven, the use height of the two guardrails is adjusted, then, the downward rotation of the locking bolt is driven by locking the rotating knob downward, the downward movement of the vertical rod is driven by the locking bolt, the downward movement of the limiting rack is driven, the limiting rack is engaged with the limiting gear, the self-rotation of the lead screw is limited, the horizontal position of the linkage rack is locked and fixed, and the height of the two guardrails is fixed. The guardrail structure for the elevator car has the advantages of simple structure and convenient use, the height of the guardrails is conveniently adjusted, and the guardrails are convenient for the support use of engineers with different heights. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a side perspective view of the present invention;

[0026] Figure 3 This is a perspective view of the internal structure of the fixing plate of this utility model;

[0027] Figure 4 This is a schematic diagram of part A of the present invention.

[0028] In the diagram: 1. Car top plate; 2. Guardrail; 3. Fixing plate; 4. Knob; 5. Handle; 6. Sliding sleeve; 7. Sliding rod; 8. Mounting hole; 9. First spring; 10. Connecting plate; 11. Locking bolt; 12. Linkage rack; 13. Lead screw; 14. Linkage gear; 15. Extrusion plate; 16. Rotating shaft; 17. Limiting gear; 18. Limiting rack; 19. Mounting rod; 20. Second spring; 21. Vertical rod; 22. Guide column. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4The utility model provides a technical scheme: a guardrail structure for elevator car, including car roof 1, the top fixed mounting of car roof 1 has fixed plate 3, and the front end of fixed plate 3 is equipped with two mounting holes 8 and rotates the installation of two pivot shafts 16 in fixed plate 3, and the two pivot shafts 16 all fixedly have linkage gear 14 and extrusion disc 15 of sleeve joint on, two sliding rods 7 are all fixedly installed in two mounting holes 8, and two sliding sleeves 6 are all slidingly sleeve -connected on two sliding rods 7, and the one end of two sliding sleeves 6 is all fixedly installed with guardrail 2 and the other end of two sliding sleeves 6 is fixedly installed with same link plate 10, and the rotation installation of screw rod 13 is in fixed plate 3, and the screw rod 13 is threadedly sleeve -connected with linkage rack 12 that is engaged with two linkage gears 14 simultaneously, and the one end fixed sleeve -connection of screw rod 13 has handle 5, and the fixed installation of sliding rail is in fixed plate 3, and the sliding installation of sliding block is on sliding rail, and sliding block is fixedly connected with linkage rack 12, and two pivot shafts 16 are located at the eccentricity of corresponding extrusion disc 15 respectively, and the sleeve -connection of first spring 9 is on two sliding rods 7, and the one end of two first springs 9 is fixed on corresponding sliding rod 7, and the other end of two first springs 9 is fixed on corresponding sliding sleeve 6, through the structure setting above, in order to facilitate the adjustment of the use height of guardrail 2, first by rotating handle 5 drive the rotation of screw rod 13, and screw rod 13 drive the horizontal movement of linkage rack 12, and the movement of linkage rack 12 drive the rotation of two linkage gears 14, that is, can drive the rotation of two 15, and two extrusion discs 15 all extrude link plate 10, that is, can drive the upward movement of link plate 10, that is, can drive the upward movement of two guardrails 2, that is, can adjust the use height of two guardrails 2.

[0031] In combination Figures 1-4 As shown, the fixed sleeve -connection of limiting gear 17 is on screw rod 13, and the fixed installation of mounting rod 19 is in fixed plate 3 and the threaded installation of locking bolt 11 is on the top of fixed plate 3, and the through -hole is set up on mounting rod 19, and the movable installation of vertical rod 21 is in through -hole, and the fixed installation of limiting rack 18 is on the bottom end of vertical rod 21, and the sleeve -connection of second spring 20 is on vertical rod 21, and the one end of second spring 20 is fixed on vertical rod 21, and the other end of second spring 20 is fixed on the inner wall of through -hole, and the bottom end of locking bolt 11 is rotationally connected with vertical rod 21, and the fixed sleeve -connection of knob 4 is on the top end of locking bolt 11, through the structure setting above, by the downward locking rotation knob 4 drive the downward rotation of locking bolt 11, and locking bolt 11 promotes the downward movement of vertical rod 21, that is, can drive the downward movement of limiting rack 18, so that limiting rack 18 and limiting gear 17 engage, that is, can limit the rotation of screw rod 13, that is, can lock and fix the horizontal position of linkage rack 12, that is, can fix the height of two guardrails 2.

[0032] In combination Figures 1-4As shown, the top of the base 1 is fixedly provided with guide columns 22 on both sides, and the two guardrails 22 are respectively slidably connected to the corresponding guide columns 22, and through the above structure, the two guardrails are stably moved up and down through the guide columns 22, and the stability of the overall structure is increased.

[0033] The utility model works: in order to facilitate the adjustment of the use height of guardrail 2, first through the rotation handle 5 drive the rotation of screw rod 13, screw rod 13 drive the horizontal movement of linkage rack 12, the movement of linkage rack 12 drive the rotation of two linkage gear 14, can drive the rotation of two 15, two extrusion disc 15 all extrude the interface board 10, can drive the upward movement of interface board 10, can drive the upward movement of two guardrails 2, can adjust the use height of two guardrails 2, then through the downward locking knob 4 drive the downward rotation of locking bolt 11, locking bolt 11 promote the downward movement of vertical rod 21, can drive the downward movement of limiting rack 18, make limiting rack 18 and limiting gear 17 mesh, can limit the rotation of screw rod 13, can lock the horizontal position of linkage rack 12, can fix the height of two guardrails 2. The utility model has the advantages of simple structure and convenient to use, and the guardrail structure for elevator car is convenient for adjusting the height of guardrail and facilitating the support use of engineers with different heights.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A guardrail structure for an elevator car, comprising a car roof (1), characterized in that: a fixed plate (3) is fixedly installed on the top of the car roof (1), two mounting holes (8) are formed at the front end of the fixed plate (3), two rotating shafts (16) are rotatably installed in the fixed plate (3), a linkage gear (14) and an extrusion disc (15) are fixedly sleeved on each of the two rotating shafts (16), a sliding rod (7) is fixedly installed in each of the two mounting holes (8), a sliding sleeve (6) is slidably sleeved on each of the two sliding rods (7), a guardrail (2) is fixedly installed on one end of each of the two sliding sleeves (6), and the other ends of the two sliding sleeves (6) are fixedly installed with the same link plate (10); a lead screw (13) is rotatably installed in the fixed plate (3), and a linkage rack (12) that is simultaneously meshed with the two linkage gears (14) is threadedly sleeved on the lead screw (13); a limiting gear (17) is fixedly sleeved on the lead screw (13), an installation rod (19) is fixedly installed in the fixed plate (3), a locking bolt (11) is threadedly installed on the top of the fixed plate (3), a through hole is formed in the installation rod (19), a vertical rod (21) is movably installed in the through hole, a limiting rack (18) is fixedly installed at the bottom end of the vertical rod (21), and the bottom end of the locking bolt (11) is rotatably connected with the vertical rod (21).

2. A balustrade structure for an elevator car according to claim 1, characterized in that: One end of the lead screw (13) is fixedly sleeved with a crank handle (5).

3. A balustrade structure for an elevator car according to claim 1, characterized in that: The top end of the locking bolt (11) is fixedly sleeved with a knob (4).

4. A balustrade structure for an elevator car according to claim 1, characterized in that: A sliding rail is fixedly installed in the fixed plate (3), a sliding block is slidably installed on the sliding rail, and the sliding block is fixedly connected with the linkage rack (12).

5. A balustrade structure for an elevator car according to claim 1, characterized in that: A second spring (20) is sleeved on the vertical rod (21), one end of the second spring (20) is fixed on the vertical rod (21), and the other end of the second spring (20) is fixed on the inner wall of the through hole.

6. A balustrade structure for an elevator car according to claim 1, characterized in that: The two rotating shafts (16) are respectively located at the eccentric positions of the corresponding extrusion discs (15).

7. A balustrade structure for an elevator car according to claim 1, characterized in that: First springs (9) are sleeved on the two sliding rods (7), one end of each of the two first springs (9) is fixed on the corresponding sliding rod (7), and the other end of each of the two first springs (9) is fixed on the corresponding sliding sleeve (6).

8. A balustrade structure for an elevator car according to claim 1, characterized in that: Guide columns (22) are fixedly installed on the top of the base (1) on both sides, and the two guardrails (22) are respectively slidably sleeved on the corresponding guide columns (22).

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