Emergency maintenance platform for elevator car
By introducing components such as control boxes, hydraulic cylinders, and lifting frames into the elevator car maintenance platform, height adjustment, fall protection, and shock absorption limit are achieved, solving the safety hazards of lifting equipment failure during elevator maintenance and improving the safety of staff and the protective effect of equipment.
Patent Information
- Application Number
- CN202520303377.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing elevator car maintenance platform lacks effective limit protection, which leads to the risk of acute descent when the lifting equipment malfunctions, threatening the safety of staff.
An emergency maintenance platform for elevator cars was designed, which uses components such as a control box, hydraulic cylinder, lifting frame, limit rod, safety rope, and buffer pad to achieve height adjustment, fall protection, and shock absorption limit, thereby enhancing equipment protection and personnel safety.
With height adjustment and fall protection functions, the safety of elevator car maintenance is improved, the risk of personnel falling is reduced, and the protective effect and flexibility of the equipment are enhanced.
Smart Images
Figure CN223823335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to elevator technical field, concretely is a kind of elevator car emergency repair platform. BACKGROUND
[0002] Elevator is the permanent transport equipment that its car runs in at least two columns of vertical to horizontal plane rigid track movement, to improve the safety of elevator, staff needs to carry out overhauling maintenance to elevator car and elevator shaft inside periodically.
[0003] Staff needs to repair platform when overhauling elevator car, and common repair platform brings staff to elevator car by the mechanism of lift for the convenience maintenance, but most lifting equipment lacks the structure of limiting protection, once lifting equipment itself appears fault, acute drop is easily caused to cause personnel casualty, personnel also exist the risk of falling in repair process.
[0004] An elevator car emergency repair platform is urgently needed to solve the technical defects presented in the above technology. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of elevator car emergency repair platform to solve the problem of poor protection effect presented in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of elevator car emergency repair platform, including base, the left side of the base is equipped with control box, the inside of the base is installed with lifting frame, the left side in the inside of the base is equipped with first hydraulic cylinder, the inside of the lifting frame is equipped with second hydraulic cylinder, the top of the lifting frame is installed with workbench, the both sides of the workbench bottom end are installed with limiting rod, the both sides of the top of the base are provided with limiting recess, the top of the workbench is installed with lifting guardrail, locking bolt is installed on the lifting guardrail, the guardrail outside the lifting guardrail is installed with two groups of positioning ring, the outside of the positioning ring is fixedly connected with safety rope, safety buckle is installed at the end of the safety rope, the output end of the first hydraulic cylinder is installed with limiting block, buffer pad is installed on the outside of the limiting block.
[0007] As a further technical scheme of the utility model, the limiting block is arranged at the bottom end in the inside of the lifting frame, and the buffer pad is made of rubber material.
[0008] As a further technical scheme of the utility model, the first hydraulic cylinder and the second hydraulic cylinder are connected with the switch assembly in the inside of the control box.
[0009] As a further technical scheme of the utility model, two groups of buffer rings are installed on the inner wall of the limiting recess, and the limiting rod is embedded in the inside of the limiting recess.
[0010] As a further technical scheme of the utility model, the bottom end inside the limiting groove is provided with an inductor, and the inductor is connected with the control box.
[0011] As a further technical scheme of the utility model, a ladder stand is arranged on the left side of the workbench, and a handrail is arranged on the left side of the top end of the lifting guardrail.
[0012] As a further technical scheme of the utility model, support assemblies are arranged on the two sides of the bottom end of the base, and the support assemblies internally comprise casters and supporting legs.
[0013] As a further technical scheme of the utility model, four locking bolts are arranged, and the locking bolts are arranged at the middle positions of the four sides of the lifting guardrail.
[0014] Compared with the prior art, the utility model has the beneficial effects that the elevator car emergency repair platform not only realizes the functions of enhancing the protection effect, facilitating the adjustment of the height of the guardrail, but also realizes the function of facilitating shock absorption and limiting;
[0015] (1) The control box, the first hydraulic cylinder, the lifting frame, the second hydraulic cylinder, the positioning ring, the safety rope, the safety buckle, the limiting block and the buffer pad are arranged, in the process of maintenance, the second hydraulic cylinder can drive the lifting frame to move upwards to realize height adjustment, which is convenient for the staff to maintain the elevator car at a high place, after the lifting frame is lifted to a suitable height, the first hydraulic cylinder drives the limiting block to move to the position of the sliding rod at the bottom of the lifting frame, the limiting block can realize brake protection in the case that the second hydraulic cylinder fails, and the safety of the staff is enhanced, the staff can buckle the safety buckle on the body through the safety rope to realize anti-falling protection in the process of maintenance, and the structure enhances the strength of equipment protection and improves the safety of the staff work;
[0016] (2) The ladder stand, the handrail, the lifting guardrail and the locking bolt are arranged, the staff stands on the workbench to maintain and repair the elevator car, the lifting guardrail on the workbench can realize anti-falling protection, the height of the lifting guardrail can be adjusted according to the height of the staff, four locking bolts are loosened during adjustment, then the lifting guardrail is pulled upwards to a suitable height, and then the locking bolts are tightened to fix the guardrail, the structure is convenient for adjusting the height of the guardrail, and realizes the function of flexible protection;
[0017] (3) The limiting groove, the limiting rod, the buffer ring, the support assembly and the inductor are arranged, in the process that the second hydraulic cylinder drives the workbench to descend, the limiting rod at the bottom of the workbench can be inserted into the inside of the limiting groove, the buffer ring in the inside of the limiting groove can enhance the friction between the limiting rod to realize buffer shock absorption, and the inductor can control the second hydraulic cylinder to stop descending when the limiting rod reaches the minimum distance, and the structure realizes the functions of facilitating shock absorption and limiting. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is a front view structural diagram of the workbench of this utility model;
[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a front view of a partial structural diagram of the lifting frame of this utility model.
[0022] In the diagram: 1. Base; 2. Control box; 3. Limiting groove; 4. First hydraulic cylinder; 5. Lifting frame; 6. Second hydraulic cylinder; 7. Limiting rod; 8. Workbench; 9. Ladder; 10. Handrail; 11. Lifting guardrail; 12. Locking bolt; 13. Positioning ring; 14. Safety rope; 15. Safety buckle; 16. Buffer ring; 17. Support assembly; 18. Sensor; 19. Limiting block; 20. Buffer pad. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-4 An embodiment of this utility model provides an emergency maintenance platform for an elevator car, comprising a base 1, a control box 2 installed on the left side of the base 1, a lifting frame 5 installed inside the base 1, a first hydraulic cylinder 4 installed on the left side inside the base 1, a second hydraulic cylinder 6 installed inside the lifting frame 5, a workbench 8 installed at the top of the lifting frame 5, limit rods 7 installed on both sides of the bottom end of the workbench 8, limit grooves 3 provided on both sides of the top end of the base 1, a lifting guardrail 11 installed at the top of the workbench 8, locking bolts 12 installed on the lifting guardrail 11, two sets of positioning rings 13 installed on the outside of the railing of the lifting guardrail 11, a safety rope 14 fixedly connected to the outside of the positioning rings 13, a safety buckle 15 installed at the end of the safety rope 14, a limit block 19 installed at the output end of the first hydraulic cylinder 4, a buffer pad 20 installed on the outside of the limit block 19, a ladder 9 installed on the left side of the workbench 8, and a handrail 10 installed on the left side of the top end of the lifting guardrail 11.
[0025] The limiting block 19 is arranged at the bottom end inside the lifting frame 5, the buffer pad 20 is made of rubber material, and the first hydraulic cylinder 4 and the second hydraulic cylinder 6 are connected with the switch assembly inside the control box 2.
[0026] Specifically, as shown in Figure 1 and Figure 4 , during the maintenance, the second hydraulic cylinder 6 can push the lifting frame 5 to move upwards to realize height adjustment, which is convenient for the staff to maintain the elevator car at a high place. After the lifting frame 5 is lifted to the appropriate height, the first hydraulic cylinder 4 pushes the limiting block 19 to move to the position of the sliding rod at the bottom of the lifting frame 5. In the case of failure of the second hydraulic cylinder 6, the limiting block 19 can realize brake protection, thereby enhancing the safety of personnel. During the maintenance, the staff will buckle the safety buckle 15 on the body to realize anti-falling protection through the safety rope 14.
[0027] The support assembly 17 is installed on both sides of the bottom end of the base 1, and the support assembly 17 internally includes casters and support legs. The locking bolts 12 are provided in four groups, and the locking bolts 12 are installed at the middle positions of the four edges of the lifting guardrail 11.
[0028] Specifically, as shown in Figure 1 and Figure 2 , the lifting guardrail 11 on the workbench 8 can realize anti-falling protection. The lifting guardrail 11 can be adjusted in height according to the height of the staff. When adjusting, loosen the four locking bolts 12, then pull the lifting guardrail 11 upwards to the appropriate height, and then tighten the locking bolts 12 to fix the guardrail, which can realize flexible protection.
[0029] The inner wall of the limiting groove 3 is provided with two groups of buffer rings 16, the limiting rod 7 is embedded in the inside of the limiting groove 3, and the inductor 18 is arranged at the bottom end inside the limiting groove 3 and connected with the control box 2.
[0030] Specifically, as shown in Figure 1 and Figure 3 , during the process of the second hydraulic cylinder 6 driving the workbench 8 to descend, the limiting rod 7 at the bottom of the workbench 8 can be inserted into the inside of the limiting groove 3. The buffer ring 16 inside the limiting groove 3 can enhance the friction between the limiting rod 7 to realize buffering and shock absorption. When the inductor 18 senses that the limiting rod 7 reaches the minimum distance, the second hydraulic cylinder 6 can be controlled to stop descending.
[0031] Working principle: the utility model discloses in use, first equipment is moved to the elevator maintenance area, the staff enters the inside of workbench 8 through the ladder 9, and the staff buckles safety buckle 15 on the body through safety rope 14 to realize anti -fall protection, during the maintenance, second hydraulic cylinder 6 can promote lifting frame 5 to move upwards and realize height adjustment, and it is convenient for the staff to maintain the elevator car at high place, after lifting frame 5 is lifted to the suitable height, first hydraulic cylinder 4 promotes spacing block 19 to move to the position of the sliding rod at the bottom of lifting frame 5, spacing block 19 can realize anti -fall protection in the case where second hydraulic cylinder 6 fails, and lifting guardrail 11 on workbench 8 can be adjusted in height according to the height of the staff, four sets of locking bolts 12 are loosened when adjusting, then lifting guardrail 11 is pulled upwards to the suitable height, then locking bolt 12 is tightened and fixed guardrail, and flexible protection can be realized, during the process that workbench 8 is lowered by second hydraulic cylinder 6, spacing rod 7 at the bottom of workbench 8 can be inserted into the inside of spacing groove 3, and the buffer ring 16 in spacing groove 3 can enhance the friction between spacing rod 7 and realize buffering and damping, when sensor 18 senses that spacing rod 7 reaches the minimum distance, second hydraulic cylinder 6 can be controlled to stop descending, brake protection is realized, and personnel safety is enhanced.
[0032] It is apparent to those skilled in the art that the present application is not limited to the details of the above-exemplified embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. Consequently, the embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims.
Claims
1. An emergency maintenance platform for an elevator car, comprising a base (1), characterized in that: A control box (2) is installed on the left side of the base (1). A lifting frame (5) is installed inside the base (1). A first hydraulic cylinder (4) is installed on the left side inside the base (1). A second hydraulic cylinder (6) is installed inside the lifting frame (5). A workbench (8) is installed at the top of the lifting frame (5). Limit rods (7) are installed on both sides of the bottom end of the workbench (8). Limit grooves (3) are provided on both sides of the top end of the base (1). A lifting guardrail (11) is installed at the top of the workbench (8). Locking bolts (12) are installed on the lifting guardrail (11). Two sets of positioning rings (13) are installed on the outside of the railing of the lifting guardrail (11). A safety rope (14) is fixedly connected to the outside of the positioning rings (13). A safety buckle (15) is installed at the end of the safety rope (14). A limit block (19) is installed at the output end of the first hydraulic cylinder (4). A buffer pad (20) is installed on the outside of the limit block (19).
2. The elevator car emergency maintenance platform according to claim 1, characterized in that: The limiting block (19) is located at the bottom of the lifting frame (5), and the buffer pad (20) is made of rubber.
3. The elevator car emergency maintenance platform according to claim 1, characterized in that: Both the first hydraulic cylinder (4) and the second hydraulic cylinder (6) are connected to the internal switch assembly of the control box (2).
4. The elevator car emergency maintenance platform according to claim 1, characterized in that: Two sets of buffer rings (16) are installed on the inner wall of the limiting groove (3), and the limiting rod (7) is embedded in the inside of the limiting groove (3).
5. An elevator car emergency maintenance platform according to claim 1, characterized in that: A sensor (18) is installed at the bottom of the limiting groove (3), and the sensor (18) is connected to the control box (2).
6. The elevator car emergency maintenance platform according to claim 1, characterized in that: A ladder (9) is installed on the left side of the workbench (8), and a handrail (10) is installed on the left side of the top of the lifting guardrail (11).
7. An elevator car emergency maintenance platform according to claim 1, characterized in that: Support components (17) are installed on both sides of the bottom end of the base (1), and the support components (17) include casters and support legs.
8. An elevator car emergency maintenance platform according to claim 1, characterized in that: The locking bolts (12) are provided in four sets, and the locking bolts (12) are installed at the middle position of the four sides of the lifting guardrail (11).