Elevator bridge top guardrail
By designing an independently lifting sliding upright and sliding crossbar structure, the problem of the existing elevator bridge top guardrail being too heavy and requiring multiple people to operate was solved, enabling convenient operation by a single person.
Patent Information
- Application Number
- CN202520369418.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Most existing retractable elevator bridge top railings are one-piece designs, which are quite heavy and require at least two maintenance personnel to lift them simultaneously, making operation inconvenient.
An elevator bridge top guardrail structure was designed, comprising a fixed upright, a sliding upright, a sliding crossbar, and a hinged rod. The sliding upright is telescopically inserted into the fixed upright, and its relative position is defined by a first fastener and a second fastener. The sliding crossbar is slidably connected to the slider to achieve independent lifting and lowering operations.
The raising and lowering of the guardrail can be operated independently by a single person, which improves the ease of operation and reduces the need for manpower.
Smart Images
Figure CN223813241U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to elevator parts technical field especially relates to a kind of elevator bridge top guardrails. BACKGROUND
[0002] Elevator bridge top guardrail is installed in the protective device of elevator shaft top (i.e. the junction area of elevator car and shaft top end), usually used to protect the safety of maintenance personnel or other personnel entering the area. The setting of elevator bridge top guardrail is to prevent workers from falling or being injured when maintaining the elevator. Elevator bridge top guardrail is usually in the form of extension, so that it can be adjusted according to the specific use of elevator bridge top. For example, in some cases, the guardrail can be pulled up to provide higher protection to prevent people from falling accidentally.
[0003] However, most of the existing telescopic elevator car roof guardrails are integrated, at least three side guardrails are connected together, and the overall weight is large. When operating, at least 2 maintenance personnel are needed to lift the surrounding guardrails at the same time, which leads to inconvenient operation. SUMMARY
[0004] Therefore, the purpose of the utility model is to provide an elevator bridge top guardrail, which aims to solve the problem that most of the existing telescopic elevator car roof guardrails are integrated, at least three side guardrails are connected together, and the overall weight is large. When operating, at least 2 maintenance personnel are needed to lift the surrounding guardrails at the same time, which leads to inconvenient operation.
[0005] The utility model provides a kind of elevator bridge top guardrail, including fixed vertical rod, fixed crossbar, sliding crossbar, sliding vertical rod and hinged rod, the fixed vertical rod and the sliding vertical rod are provided with two, two the fixed vertical rod is respectively fixedly connected in the two ends of the fixed crossbar, two the sliding vertical rod is respectively slidably connected in the two ends of the sliding crossbar, the sliding vertical rod is telescopically inserted in the fixed vertical rod, first fastener is equipped on the fixed vertical rod, the first fastener is used to limit the relative position between the sliding vertical rod and the fixed vertical rod, one end of the hinged rod is hinged on the fixed crossbar, the other end is hinged with sliding block, the sliding block is slidably connected with the sliding crossbar, second fastener is equipped on the sliding crossbar, the second fastener is used to limit the relative position between the sliding block and the sliding crossbar.
[0006] Further, the first fastener is a bolt, the bolt is threadedly connected with the fixed vertical rod, the end of the bolt is tightened into the fixed vertical rod to abut against the sliding vertical rod to limit the relative position between the sliding vertical rod and the fixed vertical rod.
[0007] Further, the second fastener comprises a bolt and a first spring, a sliding slot is formed in the sliding cross bar, the sliding block is slidingly connected in the sliding slot, the first spring is sleeved on the bolt, one end of the first spring is connected with the sliding cross bar, and the other end of the first spring is connected with the bolt, and the first spring is used for driving the bolt to be inserted into the sliding slot from outside the sliding cross bar to limit the relative position between the sliding block and the sliding cross bar.
[0008] Further, a plurality of first pulleys are arranged in the sliding slot, and the plurality of first pulleys abut against the inner wall of the sliding slot.
[0009] Further, a guide frame is sleeved on the fixed vertical rod, the guide frame is connected with the end of the sliding cross bar, and the sliding cross bar is connected with the sliding vertical rod through the guide frame.
[0010] Further, a plurality of second pulleys are arranged on the guide frame, and the plurality of second pulleys abut against the outer wall of the sliding vertical rod.
[0011] Further, the guide frame is further provided with a buffer assembly, and the buffer assembly is used for driving the second pulley to abut against the outer wall of the sliding vertical rod.
[0012] Further, the buffer assembly comprises a hinged arm, a guide block, a first guide rod and a second guide rod, one end of the hinged arm is hingedly connected with the guide frame, the other end of the hinged arm is rotationally connected with the second pulley and hingedly connected with the guide block, the guide block is provided with a first waist-shaped hole and a second waist-shaped hole, the first guide rod is inserted into the first waist-shaped hole, the second guide rod is inserted into the second waist-shaped hole, the first guide rod and the second guide rod are fixed on the guide frame, a second spring is sleeved on the second guide rod, and the second spring is used for driving the second pulley to abut against the outer wall of the sliding vertical rod.
[0013] Beneficial Effects: This utility model provides an elevator bridge top guardrail, including a fixed upright, a fixed crossbar, a sliding crossbar, a sliding upright, and a hinged rod. The sliding upright is telescopically inserted into the fixed upright. The fixed upright is provided with a first fastener, which limits the relative position between the sliding upright and the fixed upright. One end of the hinged rod is hinged to the fixed crossbar, and the other end is hinged to a slider, which is slidably connected to the sliding crossbar. The sliding crossbar is provided with a second fastener, which limits the relative position between the slider and the sliding crossbar. Because the sliding upright and the sliding crossbar are slidably connected, when the guardrail needs to be raised, the sliding upright can be raised first and fixed with the first fastener. Then, the sliding crossbar slides along the sliding upright, causing the slider to slide within a groove. After the slider reaches the target position, it is fixed by the second fastener. In this application, when the guardrail needs to be raised, the sliding upright and the sliding crossbar are not connected together and can be raised and lowered independently. Only one maintenance personnel are needed for operation, making it convenient. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of multiple guardrails connected on the top of the elevator bridge according to this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of a single guardrail connection on the top of the elevator bridge according to this utility model;
[0016] Figure 3 Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 Figure 2 Enlarged view at point B in the middle;
[0018] Figure 5 This is a schematic diagram of the buffer component.
[0019] Figure 6 This is a schematic diagram of the structure when the sliding crossbar is close to the fixed crossbar.
[0020] In the diagram: 1. Fixed upright; 2. Fixed crossbar; 3. Sliding crossbar; 31. Slide groove; 32. Sliding block; 321. First pulley; 4. Sliding upright; 5. Hinge rod; 6. First fastener; 7. Second fastener; 71. Pin; 72. First spring; 8. Guide frame; 81. Second pulley; 9. Buffer assembly; 91. Hinge arm; 92. Guide block; 921. First oblong hole; 922. Second oblong hole; 93. First guide rod; 94. Second guide rod; 95. Second spring. Detailed Implementation
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1 to 6 The utility model provides a kind of elevator bridge top guardrail, including fixed vertical rod 1, fixed cross bar 2, sliding cross bar 3, sliding vertical rod 4 and hinged rod 5, the fixed vertical rod 1 and the sliding vertical rod 4 are all provided with two, two the fixed vertical rod 1 is respectively fixedly connected in the two ends of the fixed cross bar 2, two the sliding vertical rod 4 is respectively slidably connected in the two ends of the sliding cross bar 3, the sliding vertical rod 4 is telescopically inserted in the fixed vertical rod 1, first fastener 6 is equipped on the fixed vertical rod 1, and the first fastener 6 is used to limit the relative position between the sliding vertical rod 4 and the fixed vertical rod 1, one end of the hinged rod 5 is hinged on the fixed cross bar 2, and the other end is hinged with sliding block 32, the sliding block 32 is slidably connected with the sliding cross bar 3, second fastener 7 is equipped on the sliding cross bar 3, and the second fastener 7 is used to limit the relative position between the sliding block 32 and the sliding cross bar 3.
[0023] In the present application, the fixed vertical rod 1 is fixed on the elevator bridge top, when the elevator is normally operated, the sliding vertical rod 4 is retracted into the fixed vertical rod 1, and the sliding vertical rod 4 drives the sliding cross bar 3 to approach the position of the fixed cross bar 2, so as to avoid the influence of the sliding vertical rod 4 on other facilities in the elevator during operation. When repairing, the operator enters the elevator bridge top, pulls out the sliding vertical rod 4 to a preset height, and fixes the sliding vertical rod 4 in the fixed vertical rod 1 by the first fastener 6. Then the sliding cross bar 3 is slid along the sliding vertical rod 4, the sliding cross bar 3 drives the sliding block 32 to slide in the sliding groove 31, at the same time, the sliding block 32 drives the hinged rod 5 to rotate upward, and the sliding block 32 is fixed in the sliding groove 31 by the second fastener 7 after sliding to the target position, and the hinged rod 5 can support the sliding cross bar 3.
[0024] In the present application, the guardrail can be provided with a plurality of guardrails, and the plurality of guardrails are connected to each other to enclose the elevator bridge top. As shown in Figure 1 Three identical guardrails are connected to enclose three sides of the elevator bridge top.
[0025] Specifically, the first fastener 6 is a bolt, which is screwed with the fixed vertical rod 1, and the end of the bolt is screwed into the fixed vertical rod 1 to abut against the sliding vertical rod 4 to define the relative position between the sliding vertical rod 4 and the fixed vertical rod 1. In this embodiment, when the sliding vertical rod 4 is pulled out to a preset height, the sliding vertical rod 4 can be abutted by screwing the bolt to achieve the relative fixation between the sliding vertical rod 4 and the fixed vertical rod 1. In other feasible embodiments, the first fastener 6 can adopt the way of the latch and the latch hole to achieve the relative fixation between the sliding vertical rod 4 and the fixed vertical rod 1.
[0026] Specifically, the second fastener 7 includes a latch 71 and a first spring 72, the sliding horizontal rod 3 is provided with a sliding groove 31, the sliding block 32 is slidingly connected in the sliding groove 31, the first spring 72 is sleeved on the latch 71, one end of the first spring 72 is connected with the sliding horizontal rod 3, and the other end is connected with the latch 71, and the first spring 72 is used to drive the latch 71 to be inserted into the sliding groove 31 from outside the sliding horizontal rod 3 to define the relative position between the sliding block 32 and the sliding horizontal rod 3. In this embodiment, the sliding groove 31 can be provided on the side surface of the sliding horizontal rod 3. When the sliding horizontal rod 3 is close to the fixed horizontal rod 2, the end of the sliding block 32 abuts against the end of the sliding groove 31. When the sliding horizontal rod 3 is lifted to a preset height, the other end of the sliding block 32 abuts against the other end of the sliding groove 31, i.e. the preset position. It is worth noting that in order to improve the stability of the fixed sliding horizontal rod 3, when the sliding block 32 slides to the preset position, the angle between the sliding block 32 and the hinged rod 5 is 90 degrees, at this time, the hinged rod 5 is only subjected to the vertical downward pressure, which can effectively support the sliding horizontal rod 3. In this embodiment, the latch 71 is used to limit the sliding block 32 in the sliding groove 31. The two ends of the sliding horizontal rod 3 can only slide in the vertical direction along the sliding vertical rod 4, and slide while driving the hinged rod 5 to rotate, but the sliding horizontal rod 3 cannot move along the horizontal direction due to the limitation of the sliding vertical rod 4. When the sliding block 32 is limited in the sliding groove 31, the two ends of the hinged rod 5 are also limited and cannot rotate, therefore, the latch 71 can improve the stability of the guardrail and avoid the sudden sliding of the sliding horizontal rod 3 when the force is uneven. When the sliding horizontal rod 3 needs to be lowered, the latch 71 is pulled out, so that the sliding block 32 can freely slide in the sliding groove 31.
[0027] Further, the latch 71 is provided with a guide inclined surface and a clamping surface. The guide inclined surface is used to abut against the sliding block 32 to facilitate the sliding block 32 to enter the preset position, and the clamping surface is used to abut against the sliding block 32 to limit the sliding block 32 at the preset position.
[0028] In an embodiment, the sliding groove 31 is provided with a plurality of first pulleys 321, and the plurality of first pulleys 321 abut against the inner wall of the sliding groove 31. The first pulleys 321 can improve the smoothness and stability of the sliding of the sliding block 32.
[0029] In an embodiment, the fixed vertical rod 1 is provided with a guide frame 8, the guide frame 8 is connected with the end of the sliding horizontal rod 3, and the sliding horizontal rod 3 is connected with the sliding vertical rod 4 through the guide frame 8.
[0030] In an embodiment, the guide frame 8 is provided with a plurality of second pulleys 81, and the plurality of second pulleys 81 abut against the outer wall of the sliding vertical rod 4. Similarly, the second pulleys 81 can improve the smoothness and stability of the sliding of the guide frame 8.
[0031] In an embodiment, the guide frame 8 is further provided with a buffer assembly 9, and the buffer assembly 9 is used to drive the second pulley 81 to abut against the outer wall of the sliding vertical rod 4. Specifically, the buffer assembly 9 includes a hinged arm 91, a guide block 92, a first guide rod 93, and a second guide rod 94. One end of the hinged arm 91 is hinged to the guide frame 8, the other end is rotationally connected with the second pulley 81 and hinged to the guide block 92. The guide block 92 is provided with a first waist-shaped hole 921 and a second waist-shaped hole 922. The first waist-shaped hole 921 is used for inserting the first guide rod 93, and the second waist-shaped hole 922 is used for inserting the second guide rod 94. The first guide rod 93 and the second guide rod 94 are fixed on the guide frame 8. The second guide rod 94 is provided with a second spring 95, and the second spring 95 is used to drive the second pulley 81 to abut against the outer wall of the sliding vertical rod 4. In this embodiment, when the second pulley 81 is forced to deviate outward, the guide block 92 is driven to deviate outward, and the second spring 95 is compressed. Due to the provision of the first waist-shaped hole and the second waist-shaped hole, a space is provided for the deviation of the guide block 92. Since the second spring 95 can be compressed, the second pulley 81 can be buffered, so that when the sliding horizontal rod 3 is lifted, the sliding horizontal rod 3 is prevented from being stuck, and the smoothness of lifting is improved.
[0032] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.
[0033] The above-described embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An elevator bridge top guardrail, characterized by: The utility model provides a kind of telescopic support, including fixed vertical pole (1), fixed crossbar (2), sliding crossbar (3), sliding vertical pole (4) and hinged rod (5), the fixed vertical pole (1) and the sliding vertical pole (4) are provided with two, two the fixed vertical pole (1) is respectively fixedly connected in the two ends of the fixed crossbar (2), two the sliding vertical pole (4) is respectively slidingly connected in the two ends of the sliding crossbar (3), the sliding vertical pole (4) is telescopically inserted in the fixed vertical pole (1), first fastener (6) is equipped on the fixed vertical pole (1), the first fastener (6) is used to limit the relative position between the sliding vertical pole (4) and the fixed vertical pole (1), one end of the hinged rod (5) is hinged on the fixed crossbar (2), the other end is hinged with sliding block (32), the sliding block (32) is slidingly connected with the sliding crossbar (3), second fastener (7) is equipped on the sliding crossbar (3), and the second fastener (7) is used to limit the relative position between the sliding block (32) and the sliding crossbar (3).
2. The elevator bridge top guardrail according to claim 1, characterized in that: The first fastener (6) is a bolt, the bolt is threadedly connected with the fixed vertical pole (1), and the end of the bolt is abutted against the sliding vertical pole (4) by screwing into the fixed vertical pole (1) to limit the relative position between the sliding vertical pole (4) and the fixed vertical pole (1).
3. The elevator bridge top guardrail according to claim 1, characterized in that: The second fastener (7) includes a bolt (71) and a first spring (72), the sliding crossbar (3) is provided with a sliding groove (31), the sliding block (32) is slidingly connected in the sliding groove (31), the first spring (72) is sleeved on the bolt (71), one end of the first spring (72) is connected with the sliding crossbar (3), the other end is connected with the bolt (71), and the first spring (72) is used to drive the bolt (71) to be inserted into the sliding groove (31) from outside the sliding crossbar (3) to limit the relative position between the sliding block (32) and the sliding crossbar (3).
4. The elevator bridge top guardrail according to claim 3, characterized in that: The sliding groove (31) is provided with a plurality of first pulleys (321), and the plurality of first pulleys (321) abut against the inner wall of the sliding groove (31).
5. The elevator bridge top guardrail according to claim 1, characterized in that: The fixed vertical pole (1) is sleeved with a guide frame (8), the guide frame (8) is connected with the end of the sliding crossbar (3), and the sliding crossbar (3) is connected with the sliding vertical pole (4) through the guide frame (8).
6. The elevator bridge top guardrail according to claim 5, characterized in that: The guide frame (8) is provided with a plurality of second pulleys (81), and the plurality of second pulleys (81) abut against the outer wall of the sliding vertical pole (4).
7. The elevator bridge top guardrail according to claim 6, characterized in that: The guide frame (8) is also provided with a buffer assembly (9), and the buffer assembly (9) is used to drive the second pulley (81) to abut against the outer wall of the sliding vertical pole (4).
8. The elevator bridge top guardrail according to claim 7, characterized in that: The buffer assembly (9) comprises a hinged arm (91), a guide block (92), a first guide rod (93) and a second guide rod (94), one end of the hinged arm (91) is hinged with the guide frame (8), the other end is rotationally connected with the second pulley (81) and hinged with the guide block (92), the guide block (92) is provided with a first waist-shaped hole (921) and a second waist-shaped hole (922), the first waist-shaped hole (921) is used for inserting the first guide rod (93), the second waist-shaped hole (922) is used for inserting the second guide rod (94), the first guide rod (93) and the second guide rod (94) are fixed on the guide frame (8), the second guide rod (94) is sleeved with a second spring (95), and the second spring (95) is used for driving the second pulley (81) to abut against the outer wall of the sliding vertical rod (4).