A protective device for elevator car top maintenance

Abstract

This utility model discloses a protective device for elevator car top maintenance, belonging to the field of elevator maintenance and protection technology. It includes two sets of first fixed frames, with multiple sets of second fixed frames between each set of first fixed frames. The first fixed frames and the multiple sets of second fixed frames on the same side are connected by two sets of connecting components. The first and second fixed frames are vertically distributed. The connecting components include a first connecting seat, with the first connecting seat bolted to both ends of the first fixed frame. The first fixed frame has a first connecting rod and a second connecting rod, with a rotating sleeve at one end of each connecting rod. The second connecting rod is longer than the first connecting rod. The second fixed frame has a second connecting seat at one end, with both the first and second connecting rods connected to the second connecting seat. Both the first and second fixed frames have connecting columns, and a tension spring is provided between the two sets of connecting columns. The connecting components solve the problem of inconvenience in the folding structure of traditional construction frames.

Description

Technical Field

[0001] This utility model belongs to the field of elevator maintenance and protection technology, and more specifically, it relates to a protective device for elevator car top maintenance. Background Technology

[0002] During elevator car top maintenance, various protective devices are typically used to create a safe working environment for maintenance personnel.

[0003] However, traditional elevator car top maintenance protection devices lack a convenient folding structure, which makes folding operations inconvenient during daily use, consuming a lot of time and energy for staff and affecting work efficiency. Furthermore, when unfolded to form a protective area, the lack of external force to assist in fixing it causes the protection device to shake, resulting in instability in the protected area. This not only affects the protection effect on maintenance personnel, posing safety hazards to them, but also increases the wear and tear on various components of the protection device due to frequent shaking, thereby shortening the service life of the protection device.

[0004] Based on existing structural findings, the folding structure of traditional construction scaffolds lacks convenience and affects work efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a protective device for elevator car top maintenance, thereby solving the technical problem that the folding structure of traditional construction scaffolds lacks convenience in the prior art.

[0006] The purpose and effect of this utility model for a protective device for elevator car top maintenance are achieved by the following specific technical means:

[0007] A protective device for elevator car top maintenance includes two sets of first fixing frames; multiple sets of second fixing frames are installed between the two sets of first fixing frames; the first fixing frames are connected to the multiple sets of second fixing frames on the same side by two sets of connecting components; the first fixing frames and the second fixing frames are vertically distributed.

[0008] The connecting assembly includes a first connecting seat, both ends of the first fixing frame are bolted to the first connecting seat, a rotating sleeve is rotatably connected to the first connecting seat, a first connecting rod and a second connecting rod are installed on the first fixing frame, one end of the first connecting rod is rotatably connected to one set of the rotating sleeves, the second connecting rod is rotatably connected to the other set of the rotating sleeves, the second connecting rod is longer than the first connecting rod, one end of the second fixing frame is installed to the second connecting seat, both the first connecting rod and the second connecting rod are connected to the second connecting seat, both the first fixing frame and the second fixing frame are provided with connecting posts, and a tension spring is installed between the two sets of connecting posts.

[0009] The above technical solution further includes: a mounting base is provided at the bottom of the first fixing frame, the mounting base has multiple sets of slots, a ball is inserted in the slot, a mounting sleeve is slidably connected to the mounting base, a first spring is sleeved around the mounting base, a boss is provided around the mounting base, one end of the first spring is connected to the boss, a retaining ring is provided inside the mounting sleeve, and the other end of the first spring is connected to the retaining ring.

[0010] The above technical solution further includes: two sets of fixing seats are installed at the bottom of the first fixing frame, and fixing edges are provided around the fixing seats. One side of the fixing edge is connected to multiple sets of ball bearings in the same mounting seat.

[0011] The above technical solution further includes: two sets of mounting slots are provided on both the first fixing frame and the second fixing frame, and a lifting component is installed in the mounting slot. The lifting component includes an outer rod, and the outer rod is installed in the mounting slot.

[0012] The above technical solution further includes: an inner rod passing through the outer rod, a fixing port being provided on one side of the outer rod, a second spring being secured in the fixing port, and a positioning pin being installed at one end of the second spring.

[0013] The above technical solution further includes: multiple sets of adjustment holes are opened on one side of the inner rod, a pull rod is provided at one end of the positioning pin, the positioning pin is locked in one of the adjustment holes, and lifting guardrails are installed on both the first fixing frame and the second fixing frame.

[0014] The above technical solution further includes: multiple sets of the second fixing brackets on one side are connected by connectors, and multiple sets of the second fixing brackets on the other side are connected by fixing locks.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model, through the setting of the connecting components, allows users to easily complete the folding operation of the device by means of the tension force generated by the tension spring, thus improving the folding convenience of the device; after adjusting the two sets of fixing frames, the tension force generated by the tension spring maintains the relative position of the first fixing frame and the second fixing frame, allowing the user to stably form a protective area with the device, thus solving the problem of the lack of convenience in the folding structure of traditional construction frames.

[0017] 2. When using this device, the user can press the mounting sleeve to slide it along the mounting base, thereby adjusting the alignment between the mounting base and the elevator car top mounting position. This allows the user to easily fix the device to the elevator car top, improving the ease of installation. Then, by releasing the mounting sleeve, the first spring pushes the mounting sleeve back to its original position, and simultaneously adjusting the position of the ball bearings, allowing the device to engage with the fixed base. This engagement between components provides the user with greater stability after installation, improving the overall installation stability of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a schematic diagram of the disassembled connecting component in this utility model;

[0021] Figure 4 This is a cross-sectional view of the fixed base and the mounting base assembled in this utility model;

[0022] Figure 5 This utility model Figure 2 Enlarged view of region a in the middle;

[0023] Figure 6 This utility model Figure 2 A magnified view of region b in the middle.

[0024] 1. First fixed frame; 2. Second fixed frame; 3. First connecting seat; 4. Rotating sleeve; 5. First connecting rod; 6. Second connecting rod; 7. Second connecting seat; 8. Connecting column; 9. Tension spring; 10. Mounting seat; 11. Ball bearing; 12. Mounting sleeve; 14. Fixed seat; 15. Outer rod; 16. Inner rod; 17. Positioning pin; 18. Connecting piece. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 6 As shown:

[0028] A protective device for elevator car top maintenance includes two sets of first fixing frames 1, and multiple sets of second fixing frames 2 are installed between the two sets of first fixing frames 1. The first fixing frames 1 and the multiple sets of second fixing frames 2 on the same side are connected by two sets of connecting components. The first fixing frames 1 and the second fixing frames 2 are vertically distributed.

[0029] The connecting assembly includes a first connecting seat 3, and both ends of the first fixing frame 1 are bolted to the first connecting seat 3. A rotating sleeve 4 is rotatably connected to the first connecting seat 3. A first connecting rod 5 and a second connecting rod 6 are installed on the first fixing frame 1. One end of the first connecting rod 5 is rotatably connected to one set of rotating sleeves 4, and the second connecting rod 6 is rotatably connected to the other set of rotating sleeves 4. The second connecting rod 6 is longer than the first connecting rod 5. A second connecting seat 7 is installed at one end of the second fixing frame 2. Both the first connecting rod 5 and the second connecting rod 6 are connected to the second connecting seat 7. Connecting posts 8 are provided on both the first fixing frame 1 and the second fixing frame 2. A tension spring 9 is installed between the two sets of connecting posts 8.

[0030] By setting the tension spring 9, a pulling force can be generated to pull the first fixed frame 1 and the second fixed frame 2, so that the user can complete the action with the help of the elastic force when folding, which improves the folding convenience of the device; the user can connect the first fixed frame 1 and the second fixed frame 2 through the cooperation of the first connecting rod 5 and the second connecting rod 6, so that the device can be kept in the unfolded state to form a protective area, which improves the protective stability of the device.

[0031] Please refer to, for example Figure 2 , Figure 4 and Figure 6 As shown, the first fixing frame 1 has a mounting base 10 at its bottom. The mounting base 10 has multiple sets of slots, and a ball bearing 11 is locked in the slot. A mounting sleeve 12 is slidably connected to the mounting base 10. A first spring is sleeved around the mounting base 10. A boss is provided around the mounting base 10. One end of the first spring is connected to the boss. A retaining ring is provided inside the mounting sleeve 12. The other end of the first spring is connected to the retaining ring.

[0032] By setting the component mounting base 10, the device can be fixed on the top of the elevator car, allowing the user to stably install the protective device and improving the installation stability of the device; the user can push the mounting sleeve 12 with the first spring to adjust the position of the ball 11, so that the device can adapt to the installation requirements of the fixed base 14, improving the component matching effect of the device.

[0033] The bottom of the first fixing frame 1 is equipped with two sets of fixing seats 14. The fixing seats 14 are provided with fixing edges around their perimeters. One side of the fixing edge is connected to multiple sets of ball bearings 11 in the same mounting seat 10.

[0034] By setting the component fixing seat 14, it can cooperate with the mounting seat 10 to fix the first fixing frame 1, so that the user can stably install the device on the top of the elevator car, improving the overall installation effect of the device; the user can enhance the tightness of the fit between the fixing seat 14 and the mounting seat 10 by connecting the fixing edge with the ball bearing 11, so that the device can remain stable during maintenance, improving the safety of the device.

[0035] Both the first fixed frame 1 and the second fixed frame 2 are provided with two sets of mounting slots. Lifting components are installed in the mounting slots. The lifting components include an outer rod 15. The outer rod 15 is installed in the mounting slot.

[0036] The outer rod 15 provides a mounting base for the inner rod 16, allowing users to adjust the height of the lifting guardrail and improving the height adjustment effect of the device. Users can fix the position of the outer rod 15 through the mounting slot, ensuring the stable operation of the lifting components and improving the structural reliability of the device.

[0037] An inner rod 16 is inserted through the outer rod 15. A fixing port is provided on one side of the outer rod 15. A second spring is locked in the fixing port. A positioning pin 17 is installed on one end of the second spring.

[0038] By setting the positioning pin 17, the relative positions of the inner rod 16 and the outer rod 15 can be fixed, allowing the user to maintain the height of the lifting guardrail and improving the height fixing effect of the device; the user can push the positioning pin 17 with the second spring to make the positioning pin 17 tightly engage with the adjustment hole, so that the device can prevent the inner rod 16 from sliding accidentally and improve the adjustment stability of the device.

[0039] Multiple sets of adjustment holes are provided on one side of the inner rod 16. A pull rod is provided at one end of the positioning pin 17. The positioning pin 17 is locked in one set of adjustment holes. Lifting guardrails are installed on both the first fixed frame 1 and the second fixed frame 2.

[0040] By setting the adjustment holes in the parts, multiple fixed positions can be provided for the positioning pin 17, allowing users to adjust the height of the lifting guardrail according to their needs, thus improving the protective adaptability of the device. Users can control the positioning pin 17 by pulling the lever to change the length of the inner rod 16 within the outer rod 15, allowing the device to flexibly adjust the protection range and improving the device's usability.

[0041] On one side, multiple sets of second fixing frames 2 are connected by connectors 18, and on the other side, multiple sets of second fixing frames 2 are connected by fixing locks.

[0042] By setting the component connector 18, multiple sets of second fixing brackets 2 on one side can be connected, allowing the user to ensure the integrity of the structure on that side and improve the structural continuity of the device; the user can connect multiple sets of second fixing brackets 2 on the other side through the fixing lock to fix the unfolded state of the device, so that when the device needs to be folded and stored, it can be quickly folded by releasing the fixing lock, thus improving the folding efficiency of the device.

[0043] The specific usage and function of this embodiment are as follows:

[0044] When using this elevator car top maintenance protective device, firstly, pull the two sets of first fixed frames 1. The first connecting rod 5 and the second connecting rod 6 rotate around the rotating sleeve 4 on the first connecting seat 3. Since the second connecting rod 6 is longer than the first connecting rod 5, the two sets of fixed frames gradually unfold and form a vertically distributed protective frame. The tension spring 9 between the connecting columns 8 is stretched to generate tension, which helps to maintain the relative position of the first fixed frame 1 and the second fixed frame 2, ensuring stability in the unfolded state. After unfolding, it is locked by the fixing lock between the second fixed frames 2 on the other side, forming a closed protective area. If it needs to be folded for storage, release the fixing lock, and the rebound force of the tension spring 9 will help pull the fixed frame back to its original position, improving the ease of folding.

[0045] When installing the device on the elevator car top, press the mounting sleeve 12 to make it slide along the mounting base 10. The first spring 13 is compressed by the retaining ring. At this time, the mounting base 10 is aligned with the mounting position on the elevator car top. After releasing the mounting sleeve 12, the first spring 13 pushes the mounting sleeve 12 back to its original position. The ball bearing 11 in the groove of the mounting base 10 cooperates with the fixed edge of the fixed base 14 to enhance the tightness of the installation and ensure that the device is stable and does not shake during maintenance.

[0046] When adjusting the height of the lifting guardrail according to protection requirements, pull the lever of positioning pin 17. The second spring is compressed, and positioning pin 17 disengages from the adjustment hole of inner rod 16. Move inner rod 16 up and down until the lifting guardrail reaches the appropriate height. Release the lever, and positioning pin 17, under the action of the second spring, engages with the corresponding adjustment hole, locking the position of inner rod 16. Outer rod 15 is fixed to the mounting bracket via mounting slot, ensuring stable operation of the lifting assembly. The multi-position setting of the adjustment hole can adapt to different protection height requirements.

[0047] During use, multiple sets of second fixed frames 2 on one side are connected by connectors 18 to enhance the overall structural integrity; the lifting guardrail further expands the protection range, providing safety for maintenance personnel. The entire device, through the cooperation of springs, connecting rods and other components, enables convenient unfolding, folding, installation and height adjustment, meeting the diverse protection needs of elevator car top maintenance.

[0048] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A protective device for elevator car top maintenance, comprising two sets of first fixing frames (1), characterized in that: Multiple sets of second fixed frames (2) are installed between the two sets of first fixed frames (1). The first fixed frame (1) and the multiple sets of second fixed frames (2) on the same side are connected by two sets of connecting components. The first fixed frame (1) and the second fixed frame (2) are vertically distributed. The connecting assembly includes a first connecting seat (3), both ends of the first fixing frame (1) are bolted to the first connecting seat (3), a rotating sleeve (4) is rotatably connected to the first connecting seat (3), a first connecting rod (5) and a second connecting rod (6) are installed on the first fixing frame (1), one end of the first connecting rod (5) is rotatably connected to one set of the rotating sleeves (4), the second connecting rod (6) is rotatably connected to the other set of the rotating sleeves (4), the second connecting rod (6) is longer than the first connecting rod (5), one end of the second fixing frame (2) is installed to the second connecting seat (7), both the first connecting rod (5) and the second connecting rod (6) are connected to the second connecting seat (7), both the first fixing frame (1) and the second fixing frame (2) are provided with connecting posts (8), and a tension spring (9) is installed between the two sets of connecting posts (8).

2. The protective device for elevator car top maintenance according to claim 1, characterized in that: The first fixing frame (1) is provided with a mounting base (10) at the bottom. The mounting base (10) has multiple sets of slots. A ball bearing (11) is inserted in the slot. A mounting sleeve (12) is slidably connected to the mounting base (10). A first spring is sleeved around the mounting base (10). A boss is provided around the mounting base (10). One end of the first spring is connected to the boss. A retaining ring is provided inside the mounting sleeve (12). The other end of the first spring is connected to the retaining ring.

3. The protective device for elevator car top maintenance according to claim 2, characterized in that: The bottom of the first fixing frame (1) is equipped with two sets of fixing seats (14). The fixing seats (14) are provided with fixing edges around their perimeters. One side of the fixing edge is connected to multiple sets of ball bearings (11) in the same mounting seat (10).

4. The protective device for elevator car top maintenance according to claim 1, characterized in that: The first fixing frame (1) and the second fixing frame (2) are each provided with two sets of mounting slots. A lifting component is installed in the mounting slot. The lifting component includes an outer rod (15). The outer rod (15) is installed in the mounting slot.

5. A protective device for elevator car top maintenance according to claim 4, characterized in that: An inner rod (16) is inserted inside the outer rod (15). A fixing port is provided on one side of the outer rod (15). A second spring is locked inside the fixing port. A positioning pin (17) is installed at one end of the second spring.

6. A protective device for elevator car top maintenance according to claim 5, characterized in that: The inner rod (16) has multiple sets of adjustment holes on one side, and the positioning pin (17) has a pull rod at one end. The positioning pin (17) is locked in one of the adjustment holes. The first fixing frame (1) and the second fixing frame (2) are both equipped with lifting guardrails.

7. A protective device for elevator car top maintenance according to claim 1, characterized in that: Multiple sets of the second fixing brackets (2) on one side are connected by connectors (18), and multiple sets of the second fixing brackets (2) on the other side are connected by fixing locks.

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