Car buffer device for elevator installation

Abstract

The utility model relates to a car buffer device for elevator installation, which comprises a hydraulic pipe, a buffer rod and a detection device installed on one side of the hydraulic pipe, the hydraulic pipe is vertically and fixedly installed on the ground of an elevator shaft, the buffer rod is installed at the position of an upper pipe opening of the hydraulic pipe, and a detection assembly comprises a fixing plate, a lifting rod, a rotating wheel and an encoder. The lifting rod is fixedly installed on the outer wall of the buffer rod, the fixing plate is fixedly installed on the outer wall of a pipe opening of the hydraulic pipe, the encoder is movably installed below the fixing plate, a rotating wheel is fixedly installed at the output end of the encoder, a limiting hole is formed in the upper portion of the fixing plate in a penetrating mode, and the moving route of the lifting rod passes through the limiting hole. Rust and fallen rust iron are attached to the pipe wall, the rising speed and height of the buffer rod can be affected, the number of rotation turns of the rotating wheel does not accord with the recorded number of turns within a period of time, and an operator judges the internal situation of the hydraulic pipe accordingly and conducts maintenance in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator buffer technical field especially relates to a car buffer device for elevator installation. BACKGROUND

[0002] The elevator buffer is installed at the bottom of the elevator shaft, and the buffer does not participate in the work during the normal operation of the elevator. Only when the elevator appears abnormal or unexpected situation, the buffer will start to slow down or stop the elevator from falling

[0003] The hydraulic elevator buffer is composed of a hydraulic pipe and a buffer rod. The hydraulic pipe is always filled with hydraulic oil. Since the buffer is in a long-term inactive state, the inner wall of the hydraulic pipe will rust. Moreover, the hydraulic pipe does not have a matching endoscope device, so it is difficult to observe the condition inside the pipe. Rust can cause the buffer rod to malfunction and be stuck by rust and impurities. The strength of the rusted hydraulic pipe is reduced, and there is a risk of explosion during use. SUMMARY

[0004] The purpose of the present application is to provide a car buffer device for elevator installation to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution:

[0006] A car buffer device for elevator installation, comprising a hydraulic pipe, a buffer rod, and a detection device installed on one side of the hydraulic pipe, the hydraulic pipe is vertically fixed and installed on the ground of the elevator shaft, the buffer rod is installed above the pipe opening of the hydraulic pipe, the detection assembly comprises a fixed plate, a lifting rod, a rotating wheel, and an encoder, the lifting rod is fixedly installed on the outer wall of the buffer rod, the fixed plate is fixedly installed on the outer wall of the pipe opening of the hydraulic pipe, the encoder is movably installed below the fixed plate, the output end of the encoder is fixedly installed with a rotating wheel, a limiting hole is formed through the upper side of the fixed plate, and the movable route of the lifting rod passes through the limiting hole. A plurality of protrusions are fixedly installed on the outer wall of the lifting rod, the protrusions are evenly laid on the outer wall of the lifting rod, a ring of protrusions is fixedly installed on the arc outer wall of the rotating wheel, and the plurality of protrusions are annularly arranged on the arc outer wall of the rotating wheel.

[0007] Preferably, the bottom of the fixed plate is fixedly installed with a mounting box, the encoder and the rotating wheel are movably installed inside the mounting box, the outer wall of the encoder is fixedly installed with a telescopic rod, one end of the telescopic rod penetrates through one end of the outer wall of the mounting box, a spring is sleeved outside the telescopic rod, and the telescopic rod is installed on the side of the encoder away from the hydraulic pipe. A sliding groove is formed in one side of the outer wall of the mounting box, one end of the encoder is embedded in the sliding groove, a guide groove is formed in the other side of the outer wall of the mounting box, a guide rod is fixedly installed at the center of one side of the outer wall of the rotating wheel, and the guide rod is embedded and installed in the guide groove.

[0008] The beneficial effects of this utility model are: by setting up a detection component, if the inside of the pipe wall is rusted, the rust and detached rust iron will adhere to the pipe wall, and the rising rate and height of the buffer rod will be affected. For a period of time, the number of rotations of the wheel will not match the recorded number of rotations. The operator can use this to judge the internal condition of the hydraulic pipe and carry out timely maintenance. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the overall (another perspective) structure of this utility model;

[0011] Figure 3 In this utility model Figure 1 A magnified schematic diagram of the structure of region A;

[0012] Figure 4 This is a schematic diagram of the internal structure of the fixing plate and mounting box in this utility model;

[0013] Figure 5 In this utility model Figure 2 A magnified schematic diagram of the structure of region B.

[0014] In the diagram: 1. Hydraulic pipe; 2. Buffer rod; 3. Lifting rod; 4. Fixing plate; 5. Mounting box; 6. Encoder; 7. Guide groove; 8. Telescopic rod; 9. Guide rod; 10. Slide groove; 11. Rotary wheel; 12. Spring. Detailed Implementation

[0015] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0016] like Figures 1-5The elevator installation car buffer device shown comprises a hydraulic pipe 1, a buffer rod 2, and a detection assembly installed on one side of the hydraulic pipe 1, the hydraulic pipe 1 is vertically fixedly installed on the ground of an elevator shaft, the buffer rod 2 is installed at the upper pipe opening of the hydraulic pipe 1, the detection assembly comprises a fixed plate 4, a lifting rod 3, a rotating wheel 11, and an encoder 6, the lifting rod 3 is fixedly installed on the outer wall of the buffer rod 2, the fixed plate 4 is fixedly installed on the outer wall of the pipe opening of the hydraulic pipe 1, the encoder 6 is movably installed below the fixed plate 4, the output end of the encoder 6 is fixedly installed with the rotating wheel 11, a limiting hole is through-provided on the upper side of the fixed plate 4, and the movable route of the lifting rod 3 passes through the limiting hole.

[0017] A mounting box 5 is fixedly installed on the bottom of the fixed plate 4, the encoder 6 and the rotating wheel 11 are movably installed inside the mounting box 5, the outer wall of the encoder 6 is fixedly installed with a telescopic rod 8, one end of the telescopic rod 8 penetrates through one end of the outer wall of the mounting box 5, a spring 12 is sleeved and installed on the outer part of the telescopic rod 8, and the telescopic rod 8 is installed on the side of the encoder 6 away from the hydraulic pipe 1. A sliding groove 10 is provided on one side of the outer wall of the mounting box 5, one end of the encoder 6 is embedded inside the sliding groove 10, a guide groove 7 is provided on the other side of the outer wall of the mounting box 5, a guide rod 9 is fixedly installed at the center of one side of the outer wall of the rotating wheel 11, and the guide rod 9 is embeddedly installed inside the guide groove 7.

[0018] Embodiment: An operator detects the buffer device at the bottom of the elevator shaft, a hydraulic equipment for controlling the hydraulic pipe 1 is installed inside the elevator shaft, the hydraulic equipment controls the operation of the hydraulic oil inside the hydraulic pipe 1, the hydraulic oil inside the hydraulic pipe 1 is first emptied, at this time, the operator manually lowers the buffer rod 2 to the bottom of the hydraulic pipe 1, when the buffer rod 2 falls, the lifting rod 3 passes through the limiting hole of the fixed plate 4, the lifting rod 3 outer wall protrusions are in constant contact with the protrusions on the outer wall of the rotating wheel 11 inside the mounting box 5, so that the rotating wheel 11 rotates, the length of the lifting rod 3 is fixed, therefore the contact frequency of the lifting rod 3 protrusions and the rotating wheel 11 protrusions is fixed, the rotating frequency of the rotating wheel 11 is fixed, and the encoder 6 will record the rotating frequency of the rotating wheel 11.

[0019] When the rotating wheel 11 rotates, it will prevent the protrusions of the lifting rod 3 from being too hard in contact with the protrusions of the rotating wheel 11, affecting the smooth descent of the buffer rod 2, or causing the connection between the rotating wheel 11 and the encoder 6 to break, when in contact, the protrusions of the lifting rod 3 push the protrusions of the rotating wheel 11, the rotating wheel 11 and the encoder 6 will slide inside the sliding groove 10, the guide rod 9 at the end face center of the rotating wheel 11 slides inside the guide groove 7, the telescopic rod 8 serves as the movement guide of the encoder 6, the spring 12 is compressed and deformed, and the force of the lifting rod 3 protrusions pushing the rotating wheel 11 is buffered.

[0020] After the buffer rod 2 is lowered, the operator controls the hydraulic device to introduce oil into the interior of the hydraulic pipe 1, the buffer rod 2 is raised, and when the lifting rod 3 is raised, the rotating wheel 11 is also rotated, if the interior of the hydraulic pipe 1 is normal and the inner wall is smooth, the buffer rod 2 is smoothly raised, and the rotating wheel 11 rotates a fixed number of turns in a period of time, which is the same as the number of turns recorded by the encoder 6, if the interior of the pipe wall is rusty, and the rust and the rust iron that falls off are attached to the pipe wall, the rising speed and height of the buffer rod 2 are affected, and the number of turns of the rotating wheel 11 in a period of time is not consistent with the recorded number of turns, so that the operator can judge the interior of the hydraulic pipe 1 and timely repair.

[0021] It should be noted that the parts not involved in the present application are the same as or can be realized by using the prior art; various drives in the present application can be realized by using corresponding power structures such as air cylinders, oil cylinders, electric cylinders, motors, etc. in cooperation with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structure in the drawings.

[0022] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A car buffer device for elevator installation, comprising a hydraulic pipe (1), a buffer rod (2) and a detection assembly installed on one side of the hydraulic pipe (1), the hydraulic pipe (1) is vertically fixedly installed on the ground of the elevator shaft, the buffer rod (2) is installed at the upper pipe opening of the hydraulic pipe (1), characterized in that: The detection assembly comprises a fixed plate (4), a lifting rod (3), a rotating wheel (11) and an encoder (6), the lifting rod (3) is fixedly installed on the outer wall of the buffer rod (2), the fixed plate (4) is fixedly installed on the outer wall of the pipe opening of the hydraulic pipe (1), the encoder (6) is movably installed below the fixed plate (4), the output end of the encoder (6) is fixedly installed with the rotating wheel (11), the upper portion of the fixed plate (4) is provided with a limiting hole, and the movable route of the lifting rod (3) passes through the limiting hole.

2. The elevator installation car buffer device according to claim 1, characterized in that: The bottom of the fixed plate (4) is fixedly installed with a mounting box (5), the encoder (6) and the rotating wheel (11) are movably installed in the mounting box (5), the outer wall of the encoder (6) is fixedly installed with a telescopic rod (8), one end of the telescopic rod (8) penetrates through one end of the outer wall of the mounting box (5), the outer portion of the telescopic rod (8) is sleeved with a spring (12), and the telescopic rod (8) is installed on the side of the encoder (6) away from the hydraulic pipe (1).

3. The elevator installation car buffer device according to claim 2, characterized in that: One side of the mounting box (5) is provided with a sliding groove (10), one end of the encoder (6) is embedded in the sliding groove (10), the other side of the mounting box (5) is provided with a guide groove (7), one side of the rotating wheel (11) is fixedly installed with a guide rod (9) at the center, and the guide rod (9) is embeddedly installed in the guide groove (7).

4. The elevator installation car buffer device according to claim 1, characterized in that: The outer wall of the lifting rod (3) is fixedly installed with a plurality of protrusions, the protrusions are uniformly laid on the outer wall of the lifting rod (3), the arc outer wall of the rotating wheel (11) is fixedly installed with a ring of protrusions, and the plurality of protrusions are annularly arranged on the arc outer wall of the rotating wheel (11).

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