A compression car access door mechanism
Patent Information
- Application Number
- CN202522066196.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-25
AI Technical Summary
但该垃圾压缩车检修门在门锁失效或忘记关门时,检修门易因车辆震动而随意晃动,容易伤害行人
[0012]本实用新型的技术效果为:打开检修门时,当检修门打开角度大于度时,气弹簧会释放弹力,推动检修门绕铰链自动打开度,并在打开后提供持续的支撑力,使检修门保持在打开角度,无需作业人员手动扶持,极大地方便了检修和操作工作。在作业人员忘记关闭检修门的情况下,气弹簧的弹力能使检修门保持相对稳定的状态,不会随意晃动,检修门仍然保持在原来的位置,不会超过车辆的外宽,有效降低了安全隐患。
Smart Images

Figure CN224869103U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of compressor vehicle maintenance door. Specifically, this utility model relates to a compressor vehicle maintenance door mechanism. Background Technology
[0002] In the design and use of garbage compactors, the maintenance door mechanism is a crucial component ensuring normal vehicle maintenance, emergency operation, and operational safety. With the continuous growth in urban waste disposal needs, the frequency and intensity of garbage compactor usage are constantly increasing, placing higher demands on the reliability, safety, and practicality of the maintenance door mechanism. Traditional garbage compactor maintenance door mechanisms are prone to wobbling due to vehicle vibration when the lock fails or the door is left open, posing a safety hazard of sudden opening that could potentially scratch pedestrians or other objects, which is extremely dangerous.
[0003] Chinese Patent (Publication No.: 211544753U) discloses a hospital waste compactor truck, including a truck body frame. One end of the truck body frame is a loading port, and the other end is a compression outlet. The loading port is connected to the loading pipe of external equipment. A compression roller is movably installed inside the truck body frame. A first sprocket is fitted on the outer wall of the compression roller. A motor is installed on the bottom frame inside the truck body frame. A second sprocket is installed at the output end of the motor reducer. The motor drives the compression roller to rotate through the first and second sprockets and a transmission chain. Spiral blades are unevenly arranged inside the compression roller. However, when the door lock of this waste compactor truck fails or is left open, the door is prone to shaking due to vehicle vibration, which may injure pedestrians. Utility Model Content
[0004] This utility model is designed to solve the above-mentioned problems and aims to provide a compactor vehicle maintenance door mechanism that ensures the maintenance door remains stable and does not injure pedestrians while the vehicle is in motion. To achieve the above objective, the technical solution adopted by this utility model is as follows: a compactor vehicle maintenance door mechanism, including a housing, a maintenance door, and a maintenance box, wherein the maintenance door is mounted on the maintenance box and a protective structure is provided on the maintenance door.
[0005] The protective structure includes a first spring seat, a second spring seat, and a gas spring. The first spring seat is installed inside the maintenance box, the second spring seat is installed on the maintenance door, one end of the gas spring is connected to the first spring seat, and the other end of the gas spring is connected to the second spring seat.
[0006] The inspection door is equipped with a lock.
[0007] The contact surface between the maintenance box and the maintenance door is inclined inward towards the inside of the maintenance box.
[0008] The maintenance box is equipped with a multi-way valve, and the multi-way valve is equipped with a hydraulic operating handle.
[0009] The inspection door is equipped with louvers.
[0010] The access door is connected to the access box via hinges.
[0011] A protective frame is provided on the side of the maintenance door, and the protective frame abuts against the maintenance box.
[0012] The technical advantages of this invention are as follows: When the access door is opened, if the opening angle exceeds a certain degree, the gas spring releases its elastic force, pushing the access door to automatically open around the hinge. After opening, it provides continuous support, keeping the access door at the open angle without requiring manual assistance from personnel, greatly facilitating maintenance and operation. Even if personnel forget to close the access door, the gas spring's elastic force keeps the door relatively stable, preventing it from wobbling. The access door remains in its original position and does not exceed the vehicle's outer width, effectively reducing safety hazards.
[0013] When the access door is closed, the gas spring is in a compressed state, applying an outward elastic force to the door. However, due to the inclined design of the contact surface, the direction of the gas spring's elastic force forms a certain angle with the contact surface. The gas spring's elastic force continuously applies a force towards the access box to the access door, ensuring a tight fit between the door and the access box. The gas spring's elastic force keeps the access door in a relatively stable state, preventing it from shaking or opening even if the lock fails, effectively reducing safety hazards. Attached Figure Description
[0014] This manual includes the following figures, which illustrate the following: Figure 1 This is an overall structural diagram of a compression vehicle maintenance door mechanism according to this utility model; Figure 2 This is a schematic diagram of the closing and protective structure of the maintenance door of a compressor vehicle maintenance door mechanism according to this utility model; Figure 3 This is a schematic diagram of the opening of the maintenance door of a compressor vehicle maintenance door mechanism according to this utility model; Figure 4 This is a schematic diagram of the multi-way valve and hydraulic operating handle of a compressor vehicle maintenance door mechanism according to this utility model.
[0015] The markings in the diagram are as follows: 1. Box body; 2. Inspection door; 3. Inspection box; 4. Protective structure; 401. First spring seat; 402. Second spring seat; 403. Gas spring; 5. Door lock; 6. Multi-way valve; 601. Hydraulic operating handle; 7. Louver; 8. Protective frame; 9. Hinge. Detailed Implementation
[0016] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.
[0017] like Figures 1-4 As shown, a garbage compactor's maintenance door mechanism includes a housing 1, a maintenance door 2, and a maintenance box 3. The maintenance door 2 is mounted on the maintenance box 3, and a protective structure 4 is provided on the maintenance door 2. The housing 1 is mounted on the garbage compactor and can temporarily store collected garbage. The maintenance box 3 is located on one side of the housing 1 and is used to protect the internal components. The maintenance door 2 can protect the internal structure of the maintenance box 3. When the maintenance door 2 is closed, it can protect the internal components of the maintenance box 3 and prevent external debris from entering. When it is open, it facilitates the operation and maintenance of the internal components of the maintenance box 3 by the operators. If the operators forget to close the maintenance door 2 after maintenance, the protective structure 4 can prevent the maintenance door 2 from rebounding and injuring pedestrians during vehicle operation, and can limit the maintenance door 2 to a fully open state. When the door lock fails, the protective structure 4 can further ensure that the maintenance door 2 will not open and injure pedestrians while the vehicle is in motion, thus improving pedestrian safety.
[0018] The protective structure 4 includes a first spring seat 401, a second spring seat 402, and a gas spring 403. The first spring seat 401 is installed inside the maintenance box 3, and the second spring seat 402 is installed on the maintenance door 2. One end of the gas spring 403 is connected to the first spring seat 401, and the other end of the gas spring 403 is connected to the second spring seat 402. The first spring seat 401 is fixedly installed inside the maintenance box 3 and bolted to it. The second spring seat 402 is installed on the inside of the maintenance door 2 and bolted to it. One end of the gas spring 403 is connected to the first spring seat 401 via a pin, and the other end of the gas spring 403 is connected to the second spring seat 402 via a pin. The pin connection allows the gas spring 403 to be adjusted within a certain range to adapt to the positional changes when the maintenance door 2 is opened and closed. When the access door 2 is opened, if the opening angle exceeds 5 degrees, the gas spring 403 releases its force, pushing the access door 2 to automatically open 170 degrees around the hinge 9. After opening, it provides continuous support, maintaining the access door 2 at the open angle without requiring manual assistance, greatly facilitating maintenance and operation. Even if the operator forgets to close the access door 2, the force of the gas spring 403 keeps the access door 2 relatively stable, preventing it from wobbling. The access door 2 remains in its original position, not exceeding the vehicle's outer width, effectively reducing safety hazards. When the access door 2 is closed, the force of the gas spring 403 keeps it relatively stable, preventing it from wobbling or suddenly opening wide, effectively reducing safety hazards.
[0019] A door lock 5 is installed on the maintenance door 2. The door lock 5 locks the maintenance door 2 in the closed state, preventing the maintenance door 2 from being accidentally opened during vehicle operation and ensuring vehicle operation safety. When the door lock 5 fails, the elastic force of the gas spring 403 can keep the maintenance door 2 in a relatively stable state, preventing it from shaking or suddenly opening wide, effectively reducing safety hazards.
[0020] The contact surface between the access box 3 and the access door 2 is inclined inwards. The contact surface between the access box 3 and the door is a 5-degree inward slope. When the access door 2 is closed, the gas spring 403 is in a compressed state, applying an outward elastic force to the access door 2. However, due to the inclined design of the contact surface, the direction of the elastic force of the gas spring 403 forms a specific angular relationship with the contact surface. The elastic force of the gas spring 403 continuously applies a force to the access door 2 in the direction of closing the access box 3, ensuring that the access door 2 fits tightly against the access box 3. The elastic force of the gas spring 403 keeps the access door 2 in a relatively stable state, preventing it from shaking or opening even if the door lock 5 fails, effectively reducing safety hazards.
[0021] The maintenance box 3 contains a multi-way valve 6, which is equipped with a hydraulic operating handle 601. The multi-way valve 6 controls the movement of various actuators on the compressor truck by changing the flow direction, pressure, and flow rate of hydraulic oil. Operators can manually operate the hydraulic operating handle 601 to control the working state of the multi-way valve 6, thereby enabling manual operation of the compressor truck's components, facilitating maintenance or emergency operations.
[0022] The inspection door 2 is equipped with louvers 7. The louvers 7 form a ventilation channel through the gaps between the slats, effectively facilitating air exchange between the inside and outside of the inspection box 3. During vehicle operation or work, components such as the multi-way valve 6 inside the inspection box 3 generate heat. The louvers 7 allow cool outside air to enter while simultaneously expelling hot internal air, creating air convection and preventing hot air from accumulating inside the inspection box 3. The slat design of the louvers 7 also provides some shielding, effectively preventing dust, debris, and rainwater from entering the inspection box 3 while ensuring ventilation. The tilt angle and arrangement of the slats reduce the intrusion of large particulate contaminants, protecting precision components such as the multi-way valve 6 from contamination and damage, and maintaining the cleanliness of the inside of the inspection box 3.
[0023] The access door 2 is connected to the access box 3 via a hinge 9. The hinge 9 connects the access door 2 and the access box 3, allowing the access door 2 to rotate flexibly around the axis of the hinge 9, thus enabling the access door 2 to open and close smoothly.
[0024] A protective frame 8 is installed on the side of the access door 2, and the protective frame 8 abuts against the access box 3. The protective frame 8 can strengthen the edge strength of the access door 2. During frequent opening and closing, the edge of the access door 2 is prone to deformation or damage due to collision and concentrated force. The protective frame 8 is made of high-strength material and is wrapped or fixed along the edge of the access door 2. It can effectively disperse the external force on the edge, improve the edge resistance to deformation of the access door 2, avoid edge wear and cracking caused by long-term use, extend the overall service life of the access door 2, and at the same time ensure the structural accuracy when it is fitted with the access box 3.
[0025] When the access door 2 is opened, if the opening angle exceeds 5 degrees, the gas spring 403 releases its elasticity, pushing the access door 2 to automatically open 170 degrees around the hinge 9. After opening, it provides continuous support, keeping the access door 2 at the open angle without requiring manual assistance from operators, greatly facilitating maintenance and operation. Even if operators forget to close the access door 2, the elasticity of the gas spring 403 keeps the access door 2 relatively stable, preventing it from wobbling. The access door 2 remains in its original position, not exceeding the vehicle's outer width, effectively reducing safety hazards.
[0026] When the access door 2 is closed, the gas spring 403 is in a compressed state, applying an outward elastic force to the access door 2. However, due to the inclined design of the contact surface, the direction of the elastic force of the gas spring 403 forms a certain angle with the contact surface. The elastic force of the gas spring 403 will continuously exert a force on the access door 2 in the closing direction of the access box 3, making the access door 2 tightly fit the access box 3. The elastic force of the gas spring 403 can keep the access door 2 in a relatively stable state. Even if the door lock 5 fails, it will not shake or open arbitrarily, effectively reducing safety hazards.
[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A compressor vehicle maintenance door mechanism, characterized in that, It includes a housing (1), an inspection door (2), and an inspection box (3), wherein the inspection door (2) is installed on the inspection box (3), and a protective structure (4) is provided on the inspection door (2). The protective structure (4) includes a first spring seat (401), a second spring seat (402), and a gas spring (403). The first spring seat (401) is installed inside the maintenance box (3), and the second spring seat (402) is installed on the maintenance door (2). One end of the gas spring (403) is connected to the first spring seat (401), and the other end of the gas spring (403) is connected to the second spring seat (402). The inspection door (2) is equipped with a door lock (5).
2. The compressor vehicle maintenance door mechanism according to claim 1, characterized in that: The contact surface between the maintenance box (3) and the maintenance door (2) is an inclined surface towards the inside of the maintenance box (3).
3. The compressor vehicle maintenance door mechanism according to claim 1, characterized in that: The maintenance box (3) is equipped with a multi-way valve (6), and the multi-way valve (6) is equipped with a hydraulic operating handle (601).
4. The compressor vehicle maintenance door mechanism according to claim 1, characterized in that: The inspection door (2) is equipped with louvers (7).
5. The compressor vehicle maintenance door mechanism according to claim 1, characterized in that: The inspection door (2) is connected to the inspection box (3) via a hinge (9).
6. The compressor vehicle maintenance door mechanism according to claim 1, characterized in that: A protective frame (8) is provided on the side of the inspection door (2), and the protective frame (8) abuts against the inspection box (3).
Citation Information
Patent Citations
Carriage body of garbage compression truck
CN211544753U