A shock-absorbing pad for a freight elevator car

Abstract

The utility model provides a shock-absorbing pad for a freight elevator car, which relates to the technical field of shock-absorbing for freight elevators, comprising a freight elevator car and a plurality of shock-absorbing pads, wherein the shock-absorbing pads are distributed in the vertical direction and the left-right direction of the bottom of the freight elevator car, and a movable plate is installed on the upper surface of the shock-absorbing pad, a T-shaped column is penetrated through the corner of the lower surface of the movable plate, a mounting plate is fixedly connected to the top of the T-shaped column, and a longitudinally distributed spring rod is fixedly connected to the corner position of the upper surface of the mounting plate, and the arranged spring rod can be elastically stretched accordingly when the mounting plate is away from the fixed plate, so as to generate a pulling force on the mounting plate in the direction of the fixed plate, but because the hypotenuse of the triangular block generates a reaction force on the mounting plate, it is convenient to ensure that the relative position of the mounting plate and the fixed plate is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorption of freight elevators, in particular to a shock absorption pad for a freight elevator car. Background Art

[0002] A freight elevator is a type of elevator specifically used for lifting goods. Compared to a common passenger elevator, its internal dimensions are larger and the maximum weight it can carry is also increased. Similar to a passenger elevator, when descending to the bottom floor, shock-absorbing pads are installed at the bottom of the freight elevator car to prevent the impact force generated during contact from being transmitted to the freight elevator.

[0003] For example, a prior art elevator transport bearing car shock-absorbing pad (publication number: CN219263087U), wherein two high-wear-resistant rubber sheets are fixed on the lower end surface of the car body, elastic balls, a first composite plate and a sponge filling layer are arranged inside the concave rubber sheets, and a plurality of first metal sheets of equal specifications are arranged on the lower end surface of the concave rubber sheet, and a plurality of damping springs of equal specifications are arranged, and a plurality of damping springs are respectively fixed on the upper end surfaces of a plurality of first metal sheets, and a high-wear-resistant rubber sheet, a concave rubber sheet, a bottom wear-resistant rubber, a sponge filling layer, a first metal sheet, a damping spring, a second metal sheet, a first composite plate, an elastic ball and a second composite plate are added, so that the device has a shock-absorbing structure and can better damp the car body;

[0004] However, the prior art is unable to adjust the contact pressure between the shock-absorbing pad and the bottom surface of the elevator shaft. The reason is that the prior art adds components such as high-wear-resistant rubber sheets, concave rubber sheets, bottom wear-resistant rubber, sponge filling layers, first metal sheets, vibration-damping springs, second metal sheets, first composite plates, elastic balls and second composite plates into the shock-absorbing pads. However, the added components are unable to adjust the distance between the shock-absorbing pad and the car, resulting in wear on the bottom of the shock-absorbing pad during long-term use. When the car descends to the bottom, the shock-absorbing pad with worn surface is in a suspended state compared with other shock-absorbing pads, which can easily cause the car to tilt. Therefore, the applicant proposes a freight elevator car shock-absorbing pad whose position can be adjusted according to the degree of wear. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a shock-absorbing pad for a freight elevator car.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a freight elevator car shock-absorbing pad, comprising a freight elevator car and a plurality of shock-absorbing pads, the shock-absorbing pads are distributed in the vertical direction and the left and right directions of the bottom of the freight elevator car, and a movable plate is installed on the upper surface of the shock-absorbing pad, a T-shaped column is penetrated through the corner of the lower surface of the movable plate, the top of the T-shaped column is fixedly connected with a mounting plate, the corner position of the upper surface of the mounting plate is fixedly connected with a longitudinally distributed spring rod, the top of the spring rod is fixedly connected with a fixed plate installed on the bottom of the freight elevator car, two triangular blocks are symmetrically arranged on the lower surface of the fixed plate, the hypotenuse of the two triangular blocks is slidably connected to the edge of the upper surface of the mounting plate, and the two triangular blocks slide relative to or towards each other at the same speed.

[0007] Further: a bolt is threadedly connected to the center of the lower surface of the movable plate, and matching positioning holes are opened at the positions of the T-shaped column and the bolt on the shock-absorbing pad.

[0008] Furthermore: the positioning hole for the bolt to pass through is T-shaped, and the end face of the bolt head is slidably connected to the inner wall of the positioning hole.

[0009] Further: a pressure sensor for detecting the load of the movable plate is fixedly connected to the lower surface of the mounting plate.

[0010] Furthermore: a right-angled side of the triangular block is slidably connected to the lower surface of the fixed plate.

[0011] Furthermore: a pair of opposite sides of the fixed plate are fixedly connected with an L-shaped plate, the two triangular blocks are located between the two L-shaped plates, and a plug column passing through the two triangular blocks is fixedly connected between the two L-shaped plates, and a bidirectional screw threaded through the two triangular blocks is also rotatably connected between the two L-shaped plates.

[0012] Furthermore: the two triangular blocks are symmetrically arranged on both sides of the bidirectional screw, and one end of the bidirectional screw passes through the L-shaped plate and extends outward.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the surface of the shock-absorbing pad is worn, the two triangular blocks move relative to each other, and the inclined surfaces of the triangular blocks are used to push the mounting plate away from the fixed plate, so that the movable plate drives the shock-absorbing pad to move away from the fixed plate, ensuring that when the freight elevator car descends to the bottom, the shock-absorbing pad contacts the bottom surface of the elevator shaft smoothly, ensuring that the force on the freight elevator car is even and will not tilt.

[0015] 2. In the present invention, the pressure sensor measures the pressure of the freight elevator car on each shock-absorbing pad when the freight elevator car descends to the bottom of the elevator shaft. When the measured pressure value is smaller than that of other pressure sensors, it means that the surface of the shock-absorbing pad at that position has a certain amount of wear.

[0016] 3. In the utility model, rubber is provided on the shock-absorbing pad of the cargo elevator car bottom in the vertical direction and the left and right directions. The purpose is to prevent the cargo elevator from generating an eccentric load force and damaging the rubber when it is vertically compressed. Therefore, the rubber is arranged on the left and right sides to effectively limit the eccentric load force applied to the shock-absorbing pad in the left and right directions of the car bottom, thereby achieving a balanced force effect, thereby enhancing the shock-absorbing effect of the shock-absorbing pad of the cargo elevator car bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural schematic diagram of a shock-absorbing pad for a freight elevator car is proposed for the utility model;

[0018] Figure 2 A structural schematic diagram of a shock-absorbing pad for a freight elevator car is proposed for the utility model;

[0019] Figure 3 The utility model proposes a shock-absorbing pad for a freight elevator car Figure 2 A schematic diagram of a side cross-section structure;

[0020] Figure 4 The utility model proposes a shock-absorbing pad for a freight elevator car Figure 2 Schematic diagram of the top cross-section structure.

[0021] Legend: 1. Freight elevator car; 2. Fixed plate; 3. Shock-absorbing pad; 4. Triangular block; 5. Insert column; 6. Bidirectional screw; 7. L-shaped plate; 8. Spring rod; 9. T-shaped column; 10. Movable plate; 11. Pressure sensor; 12. Mounting plate; 13. Bolt; 14. Positioning hole. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] like Figure 1-4As shown, a shock-absorbing pad for a freight elevator car comprises a freight elevator car 1 and a plurality of shock-absorbing pads 3, the shock-absorbing pads 3 are distributed in the vertical direction and the left-right direction of the bottom of the freight elevator car 1, and a movable plate 10 is installed on the upper surface of the shock-absorbing pad 3, a T-shaped column 9 is penetrated and arranged at the corner of the lower surface of the movable plate 10, a mounting plate 12 is fixedly connected to the top of the T-shaped column 9, a longitudinally distributed spring rod 8 is fixedly connected to the corner position of the upper surface of the mounting plate 12, a fixed plate 2 installed on the bottom of the freight elevator car 1 is fixedly connected to the top of the spring rod 8, two triangular blocks 4 are symmetrically arranged on the lower surface of the fixed plate 2, the hypotenuses of the two triangular blocks 4 are slidably connected to the edges of the upper surface of the mounting plate 12, and the two triangular blocks 4 slide relative to or towards each other at the same speed;

[0025] In this solution: when the surface of the shock-absorbing pad 3 is worn, the two triangular blocks 4 move relative to each other, and the inclined surface of the triangular block 4 is used to push the mounting plate 12 away from the fixed plate 2, so that the movable plate 10 drives the shock-absorbing pad 3 to move away from the fixed plate 2, ensuring that when the freight elevator car 1 descends to the bottom, the shock-absorbing pad 3 contacts the bottom surface of the elevator shaft smoothly, ensuring that the force on the freight elevator car 1 is uniform and will not tilt;

[0026] In addition, the spring rod 8 provided in the present solution can be elastically stretched accordingly when the mounting plate 12 is away from the fixed plate 2, thereby generating a pulling force on the mounting plate 12 in the direction of the fixed plate 2. However, because the hypotenuse of the triangular block 4 generates a reaction force on the mounting plate 12, it is easy to ensure that the relative position of the mounting plate 12 and the fixed plate 2 is fixed.

[0027] Further, such as Figure 3 As shown: a bolt 13 is threadedly connected to the center of the lower surface of the movable plate 10, and a matching positioning hole 14 is opened at the position of the T-shaped column 9 and the bolt 13 on the shock-absorbing pad 3.

[0028] In addition: the positioning hole 14 for the bolt 13 to pass through is T-shaped, and the end face of the bolt 13 is slidably connected to the inner wall of the positioning hole 14;

[0029] In this solution, the provided bolts 13 facilitate fixing the relative positions of the shock absorbing pad 3 and the movable plate 10 , and the T-shaped column 9 is inserted into the positioning hole 14 to prevent the shock absorbing pad 3 from rotating on the lower surface of the movable plate 10 .

[0030] like Figure 3 As shown: a pressure sensor 11 for detecting the load of the movable plate 10 is fixedly connected to the lower surface of the mounting plate 12;

[0031] In this solution: the pressure sensor 11 preferably selects the H8C-C3 model pressure sensor, so that when the freight elevator car 1 descends to the bottom of the elevator shaft, the pressure of the freight elevator car 1 on each shock-absorbing pad 3 is measured. When the measured pressure value is smaller than that of other pressure sensors 11, it means that the surface of the shock-absorbing pad 3 at this position has a certain amount of wear.

[0032] like Figure 2 As shown: a right angle side of the triangular block 4 is slidably connected to the lower surface of the fixed plate 2.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown: a pair of opposite sides of the fixed plate 2 are fixedly connected with an L-shaped plate 7, two triangular blocks 4 are located between the two L-shaped plates 7, and a plug column 5 penetrating the two triangular blocks 4 is fixedly connected between the two L-shaped plates 7, and a bidirectional screw 6 threadedly penetrating the two triangular blocks 4 is also rotatably connected between the two L-shaped plates 7.

[0034] In addition: two triangular blocks 4 are symmetrically arranged on both sides of the bidirectional screw 6, and one end of the bidirectional screw 6 passes through the L-shaped plate 7 and extends outward;

[0035] In this solution: the provided plug column 5 and the bidirectional screw 6 are convenient for ensuring that the two triangular blocks 4 can only slide relative to or toward each other, that is, the triangular block 4 threadedly connected thereto can be moved by rotating the bidirectional screw 6. When the two triangular blocks 4 move relative to each other, the mounting plate 12 is pushed away from the fixed plate 2. When the two triangular blocks 4 move toward each other, the spring rod 8 elastically contracts, driving the mounting plate 12 close to the fixed plate 2.

[0036] Working principle: When the equipment is installed or repaired, the freight elevator car 1 descends to the bottom of the elevator shaft. The freight elevator car 1 generates a certain pressure on each shock-absorbing pad 3 on its surface, and the pressure is measured in real time by the arranged pressure sensor 11. When the pressure of the pressure sensor 11 is too large, the bidirectional screw 6 is rotated to realize the relative movement of the triangular block 4 threadedly connected thereto, and the spring rod 8 is elastically contracted to drive the mounting plate 12 close to the fixed plate 2, thereby realizing the proximity of the shock-absorbing pad 3 to the fixed plate 2, thereby reducing the pressure it bears. When the pressure of the pressure sensor 11 is too small, the bidirectional screw 6 is rotated to realize the relative movement of the triangular block 4 threadedly connected thereto, and the spring rod 8 is elastically contracted to drive the mounting plate 12 away from the fixed plate 2, thereby realizing the distance between the shock-absorbing pad 3 and the fixed plate 2, thereby appropriately increasing the pressure it bears.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A shock-absorbing pad for a freight elevator car, comprising a freight elevator car (1) and a plurality of shock-absorbing pads (3), characterized in that: The shock-absorbing pads (3) are distributed in the vertical direction and the left-right direction of the bottom of the freight elevator car (1), and a movable plate (10) is installed on the upper surface of the shock-absorbing pad (3). A T-shaped column (9) is arranged through the corner of the lower surface of the movable plate (10). The top of the T-shaped column (9) is fixedly connected to a mounting plate (12). A longitudinally distributed spring rod (8) is fixedly connected to the corner position of the upper surface of the mounting plate (12). The top of the spring rod (8) is fixedly connected to a fixed plate (2) installed on the bottom of the freight elevator car (1). Two triangular blocks (4) are symmetrically arranged on the lower surface of the fixed plate (2). The oblique sides of the two triangular blocks (4) are slidably connected to the edges of the upper surface of the mounting plate (12), and the two triangular blocks (4) slide relative to or towards each other at the same speed.

2. The shock-absorbing pad for a freight elevator car according to claim 1, characterized in that: The lower surface of the movable plate (10) is centrally threadedly connected with a bolt (13), and the shock-absorbing pad (3) is provided with a matching positioning hole (14) at the position of the T-shaped column (9) and the bolt (13).

3. The shock-absorbing pad for a freight elevator car according to claim 2, characterized in that: The positioning hole (14) for the bolt (13) to pass through is T-shaped, and the end face of the bolt head (13) is slidably connected to the inner wall of the positioning hole (14).

4. The shock-absorbing pad for a freight elevator car according to claim 1, characterized in that: A pressure sensor (11) for detecting the load of the movable plate (10) is fixedly connected to the lower surface of the mounting plate (12).

5. The shock-absorbing pad for a freight elevator car according to claim 1, characterized in that: A right-angled side of the triangular block (4) is slidably connected to the lower surface of the fixing plate (2).

6. The shock-absorbing pad for a freight elevator car according to claim 1, characterized in that: An L-shaped plate (7) is fixedly connected to a pair of opposite sides of the fixed plate (2); the two triangular blocks (4) are located between the two L-shaped plates (7); a plug post (5) penetrating the two triangular blocks (4) is fixedly connected between the two L-shaped plates (7); and a bidirectional screw (6) threadedly penetrating the two triangular blocks (4) is rotatably connected between the two L-shaped plates (7).

7. The shock-absorbing pad for a freight elevator car according to claim 6, characterized in that: The two triangular blocks (4) are symmetrically arranged on both sides of the bidirectional screw (6), and one end of the bidirectional screw (6) penetrates the L-shaped plate (7) and extends outwards.

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