A support and limiting structure for a compressor station

By designing a combination of limit hooks, limit components, and drive components, the problem of instability in the pressure head body caused by hydraulic system failure was solved, achieving additional support and improved safety in failure situations.

CN224428756UActive Publication Date: 2026-06-30CHONGQING DASHENG ENVIRONMENTAL SANITATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING DASHENG ENVIRONMENTAL SANITATION CO LTD
Filing Date
2025-08-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing anti-fall devices in compression stations rely on safety hook cylinders, which are prone to problems such as unstable support due to cylinder failure, resulting in poor safety.

Method used

Design a support and limiting structure including a limit hook, a limit component, and a drive component. Utilize the cooperation of a connecting rod, a movable rod, and a limit pin to automatically insert the limit pin into the limit hole in the event of a hydraulic system failure, providing additional support and improving safety.

Benefits of technology

In the event of a hydraulic system failure, the limit hook can automatically insert into the limit hole, providing additional support, improving the safety of the pressure head body, and reducing the difficulty of operation and the accuracy requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a support and limiting structure for a compressor station, installed on a steel frame. A compressor head body is mounted on the steel frame, including a limiting hook, a limiting assembly, and a driving assembly. A connecting rod is fixedly connected to the top of the limiting hook, and the top of the limiting hook is rotatably connected to the inner wall of the steel frame. The limiting assembly includes a sleeve, a movable rod, and a limiting pin. First supports are fixedly arranged at intervals on the inner wall of the steel frame, with fixed shafts on one side of the two first supports close to each other. The sleeve is rotatably fitted onto the two fixed shafts. The movable rod slides through the sleeve, and its bottom is rotatably connected to the top of the connecting rod. A limiting hole is opened on the side wall of the movable rod, and the limiting pin slides through one of the first supports. The driving assembly is located on the inner wall of the steel frame. Through this arrangement, the lower section of the limiting hook can be kept below the compressor head body, providing support for the compressor head body in case of hydraulic system failure, thus improving the safety of the device.
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Description

Technical Field

[0001] This utility model belongs to the technical field of compression station equipment, specifically relating to a support and limiting structure for compression stations. Background Technology

[0002] A waste compression station is a facility specifically designed for storing and compressing household waste. Its core function is to reduce the volume of waste through mechanical compression, thereby reducing the need for storage space. Vertical waste compression stations are one type, primarily consisting of a pit-type enclosure and a compression unit. The compression unit includes a steel frame and a pressure head mounted on the steel frame via hydraulic cylinders. The pressure head is relatively heavy, and if the hydraulic cylinders malfunction, the pressure head is prone to falling downwards, posing a certain safety hazard.

[0003] Chinese patent CN209177356U discloses a fall prevention device for a garbage compression station. The solution includes a safety hook, a safety hook cylinder, and a safety hook bracket. The safety hook bracket is fixed to the upper part of the column, and a safety hook is hinged to the bottom of the safety hook bracket. A safety hook cylinder is hinged to the upper part of the outer side wall of the safety hook bracket. The safety hook cylinder is hinged to the middle of the vertical arm of the safety hook. The above solution uses the extension safety hook cylinder to rotate the horizontal arm of the safety hook outward to below the pressure head, which can effectively prevent the pressure head from falling.

[0004] When using the above solution, a safety hook cylinder is still required to support the safety hook. However, the safety hook cylinder may still malfunction, resulting in unstable support for the pressure head and poor safety. Utility Model Content

[0005] The present invention aims to provide a support and limiting structure for a compression station to solve the problem of poor safety of the above-mentioned solutions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A support and limiting structure for a compressor station is installed on a steel frame. A compressor head body is mounted on the steel frame via a hydraulic system. The structure includes a limiting hook, a limiting assembly, and a driving assembly. The limiting hook is L-shaped, and a connecting rod is fixedly connected to the top of its vertical section. The top of the vertical section of the limiting hook is rotatably connected to the inner wall of the steel frame. The limiting assembly includes a sleeve, a movable rod, and a limiting pin. First supports are fixedly arranged at intervals on the inner wall of the steel frame. Fixed shafts are provided on one side of two first supports close to each other. The sleeve is rotatably fitted onto the two fixed shafts. The movable rod slides through the sleeve, and its bottom is rotatably connected to the top of the connecting rod. A limiting hole is provided on the side wall of the movable rod. The limiting pin slides axially along the fixed shaft through one of the first supports. The driving assembly is located on the inner wall of the steel frame and is used to drive the limiting pin to move axially.

[0008] The principle and effects of this technical solution:

[0009] Initially, the connecting rod is horizontal, and the lower section of the limiting hook is outside the vertical projection of the pressure head body. After the pressure head body completes the compression work, the hydraulic system lifts it. During the upward movement of the pressure head body, it first contacts the connecting rod and pushes the connecting rod to rotate. When the connecting rod rotates, it drives the limiting hook to rotate and pushes the movable rod to rotate and move. When the movable rod rotates to the point where the limiting hole is aligned with the limiting pin, the limiting pin is inserted into the limiting hole. At this time, the lower section of the limiting hook moves to the bottom of the pressure head body. When it is necessary to move the pressure head body down, the limiting pin is pulled out. At this time, the limiting hook rotates outward under the gravity of the connecting rod and the movable rod.

[0010] With the above configuration, during the process of lifting the pressure head body, the connecting rod pushes the movable rod to rotate until the limit hole aligns with the limit pin. By inserting the limit pin into the limit hole, the lower section of the limit hook can be kept below the pressure head body, which can provide support for the pressure head body in the event of a hydraulic system failure, thus improving the safety of the device.

[0011] In this utility model, a second bracket is fixedly installed on the outer side of the first bracket through which the limiting pin passes through the inner side wall of the steel frame. The limiting pin slides through the second bracket. A baffle is fixedly installed on the outer side wall of the limiting pin between the second bracket and the adjacent first bracket. A compression spring is sleeved on the outer periphery of the limiting pin between the baffle and the second bracket.

[0012] In this utility model, a fixed seat is fixedly provided on the inner side wall of the steel frame on the side of the second bracket away from the first bracket. The driving assembly includes a sleeve, a threaded rod, and a driving component. A sliding groove is provided on the side of the fixed seat near the second bracket. The threaded rod is rotatably inserted into the sliding groove. One end of the sleeve is slidably inserted into the sliding groove and fitted onto the threaded section of the threaded rod. An inner edge is provided on the inner side wall of the other end of the sleeve. One end of the limiting pin is slidably inserted into the other end of the sleeve and is fixedly provided with an outer edge that can abut against the inner edge. The driving component is fixedly provided on the inner side wall of the steel frame and is connected to the threaded rod for transmission.

[0013] In this utility model, the vertical cross-section of the sleeve is annular, the inner sidewall of the slide groove is provided with a slot along its length, and the outer sidewall of the sleeve is fixedly provided with a protrusion that is slidably embedded in the slot along its length.

[0014] The principle and effects of this technical solution:

[0015] When the connecting rod is in a horizontal state, the compression spring pushes the end of the limit pin to abut against the side wall of the movable rod. At this time, there is a gap between the outer edge of the limit pin and the inner edge of the rod sleeve. When the pressure head body rotates the movable rod to the limit hole and the limit pin by pushing the connecting rod, the compression spring pushes the limit pin to insert into the limit hole. Before the pressure head body needs to be moved down, the drive component is first driven to rotate the threaded rod. Because the protrusion is embedded in the slot, the rod sleeve moves away from the second bracket as the threaded rod rotates. During the movement of the rod sleeve, the inner edge pulls the outer edge of the limit pin and the limit pin to move closer to the fixed seat. When the limit pin is disengaged from the limit hole, the movable rod slides down under its own weight and the weight of the connecting rod. Through programming or manual control, the drive component drives the threaded rod to rotate in the opposite direction after the limit pin is disengaged from the limit hole for a period of time, so that the rod sleeve moves closer to the second bracket. The compression spring then pushes the limit pin to abut against the side wall of the movable rod again.

[0016] With the above settings, the limit pin can be automatically inserted into the limit hole after being aligned with the limit hole. The limit pin can be moved by rotating the threaded rod and pulling the sleeve, which makes it easy for the staff to release the limit hook from the pressure head body.

[0017] In this invention, the diameter of the limiting hole is larger than the diameter of the limiting pin. This design allows for more movable space for the pressure head body, reducing the precision requirements for the pressure head body's movement distance and thus simplifying operation.

[0018] In this invention, a protrusion is fixedly provided at the top of the movable rod, which can abut against the top of the sleeve. When the bottom of the limiting block contacts the top of the sleeve, the connecting rod is in a horizontal state. Through the above arrangement, the movable rod can be prevented from rotating out of the sleeve.

[0019] In this invention, two sets of the limiting hook, limiting assembly, and driving assembly are symmetrically arranged on the steel frame. This arrangement further enhances the support effect of the device on the pressure head body. Attached Figure Description

[0020] Figure 1 This is an isometric view of the overall structure of this utility model;

[0021] Figure 2 This is a partial sectional view of the present invention in use.

[0022] Figure 3 This is a partial sectional view of the present invention in its second usage state;

[0023] Figure 4 This is a partial isometric view of the present invention;

[0024] Figure 5 Disassembly of the components of this utility model Figure 1;

[0025] Figure 6 This is a partial isometric sectional view of the present invention;

[0026] Figure 7 Disassembly of the components of this utility model Figure 2 . Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0028] The reference numerals in the accompanying drawings of the instruction manual include: 10, steel frame; 11, first bracket; 12, fixed shaft; 13, second bracket; 14, fixed seat; 15, slide groove; 16, slot; 20, hydraulic system; 30, pressure head body; 40, limiting hook; 41, connecting rod; 51, sleeve; 52, movable rod; 521, limiting hole; 522, protrusion; 53, limiting pin; 531, baffle; 532, outer edge; 54, compression spring; 61, rod sleeve; 611, inner edge; 612, protrusion; 62, threaded rod; 63, driving component.

[0029] Example:

[0030] As attached Figure 1-7 As shown, this utility model discloses a support and limiting structure for a compression station, installed on a steel frame 10. A pressure head body 30 is mounted on the steel frame 10 via a hydraulic system 20. The structure includes a limiting hook 40, a limiting assembly, and a driving assembly. The limiting hook 40 is L-shaped, and a connecting rod 41 is fixedly connected to the top of its vertical section. The top of the vertical section of the limiting hook 40 is rotatably connected to the inner wall of the steel frame 10. The limiting assembly includes a sleeve 51, a movable rod 52, and a limiting pin 53. First brackets 1 are fixedly arranged at intervals on the inner wall of the steel frame 10. 1. Two first brackets 11 are provided with fixed shafts 12 close to each other on one side. The sleeve 51 is rotatably sleeved on the two fixed shafts 12. The movable rod 52 is slidably inserted through the sleeve 51, and the bottom of the movable rod 52 is rotatably connected to the top of the connecting rod 41. A limit hole 521 is opened on the side wall of the movable rod 52. The limit pin 53 is slidably inserted through one of the first brackets 11 along the axial direction of the fixed shaft 12. The driving assembly is provided on the inner side wall of the steel frame 10 and is used to drive the limit pin 53 to move along its axial direction. The mass of the connecting rod 41 is greater than the mass of the limit hook 40.

[0031] In this embodiment, a second bracket 13 is fixedly installed on the outer side of the first bracket 11 through which the limiting pin 53 passes through the inner side wall of the steel frame 10. The limiting pin 53 slides through the second bracket 13. A baffle 531 is fixedly installed on the outer side wall of the limiting pin 53 between the second bracket 13 and the adjacent first bracket 11. A compression spring 54 is sleeved on the outer periphery of the limiting pin 53 between the baffle 531 and the second bracket 13.

[0032] In this embodiment, a fixed seat 14 is fixedly provided on the inner side wall of the steel frame 10 on the side of the second bracket 13 away from the first bracket 11. The driving assembly includes a sleeve 61, a threaded rod 62, and a driving member 63. A sliding groove 15 is provided on the side of the fixed seat 14 near the second bracket 13. The threaded rod 62 is rotatably inserted into the sliding groove 15. One end of the sleeve 61 is slidably inserted into the sliding groove 15 and fitted onto the threaded section of the threaded rod 62. An inner edge 611 is provided on the inner side wall of the other end of the sleeve 61. One end of the limiting pin 53 is slidably inserted into the other end of the sleeve 61 and is fixedly provided with an outer edge 532 that can abut against the inner edge 611. The driving member 63 is fixedly provided on the inner side wall of the steel frame 10 and is connected to the threaded rod 62 in a transmission manner.

[0033] In this embodiment, the vertical cross-section of the sleeve 61 is annular, the inner sidewall of the slide groove 15 is provided with a slot 16 along its length, and the outer sidewall of the sleeve 61 is fixedly provided with a protrusion 612 that is slidably embedded in the slot 16 along its length.

[0034] In this embodiment, the diameter of the limiting hole 521 is larger than the diameter of the limiting pin 53.

[0035] In this embodiment, the top of the movable rod 52 is fixedly provided with a protrusion 522 that can abut against the top of the sleeve 51.

[0036] In this embodiment, two sets of the limiting hook 40, limiting component and driving component are symmetrically arranged on the steel frame 10.

[0037] The specific implementation process is as follows:

[0038] In the initial state, the connecting rod 41 is horizontal, and the lower section of the limiting hook 40 is outside the vertical projection of the pressure head body 30. After the pressure head body 30 completes the compression work, the hydraulic system 20 lifts it. During the upward movement of the pressure head body 30, it first contacts the connecting rod 41 and pushes the connecting rod 41 to rotate. When the connecting rod 41 rotates, it drives the limiting hook 40 to rotate on the one hand, and pushes the movable rod 52 to rotate and move on the other hand. When the movable rod 52 rotates to the point where the limiting hole 521 is aligned with the limiting pin 53, the limiting pin 53 is inserted into the limiting hole 521. At this time, the lower section of the limiting hook 40 moves to the bottom of the pressure head body 30. When it is necessary to move the pressure head body 30 down, the limiting pin 53 is pulled out. At this time, the limiting hook 40 rotates outward under the gravity of the connecting rod 41 and the movable rod 52.

[0039] When the connecting rod 41 is in a horizontal state, the compression spring 54 pushes the end of the limiting pin 53 to abut against the side wall of the movable rod 52. At this time, there is a gap between the outer edge 532 of the limiting pin 53 and the inner edge 611 of the sleeve 61. When the pressure head body 30 rotates the movable rod 52 to the point where the limiting hole 521 is aligned with the limiting pin 53 by pushing the connecting rod 41, the compression spring 54 pushes the limiting pin 53 to be inserted into the limiting hole 521. Before the pressure head body 30 needs to be lowered, the driving member 63 is first driven to rotate the threaded rod 62. Because the protrusion 612 is embedded in the slot 16, the sleeve 61 rotates with the threaded rod 62. As the rod sleeve 61 moves away from the second support 13, its inner edge 611 pulls the outer edge 532 of the limiting pin 53 and the limiting pin 53 towards the fixed seat 14. When the limiting pin 53 disengages from the limiting hole 521, the movable rod 52 slides downward under its own weight and the weight of the connecting rod 41. Through programming or manual control, the driving component 63 drives the threaded rod 62 to rotate in the opposite direction after the limiting pin 53 disengages from the limiting hole 521 for a period of time, causing the rod sleeve 61 to move towards the second support 13. The compression spring 54 then pushes the limiting pin 53 against the side wall of the movable rod 52 again.

[0040] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A support limiting structure for a compression station, installed on a steel frame on which a pressure head main body is installed through a hydraulic system, characterized in that, include: The limiting hook is L-shaped, and a connecting rod is fixedly connected to the top of the vertical section of the limiting hook. The top of the vertical section of the limiting hook is rotatably connected to the inner wall of the steel frame. A limiting assembly includes a sleeve, a movable rod, and a limiting pin. The inner sidewall of the steel frame is fixedly provided with first brackets at intervals. Two first brackets are provided with fixed shafts on one side close to each other. The sleeve is rotatably sleeved on the two fixed shafts. The movable rod slides through the sleeve, and the bottom of the movable rod is rotatably connected to the top of the connecting rod. A limiting hole is opened on the sidewall of the movable rod. The limiting pin slides through one of the first brackets along the axial direction of the fixed shaft. A drive assembly, disposed on the inner sidewall of the steel frame, is used to drive the limit pin to move axially thereon.

2. The support and limiting structure for a compressor station as described in claim 1, characterized in that: A second bracket is fixedly installed on the outer side of the first bracket through which the limiting pin passes. The limiting pin slides through the second bracket. A baffle is fixedly installed on the outer side of the limiting pin between the second bracket and the adjacent first bracket. A compression spring is sleeved on the outer periphery of the limiting pin between the baffle and the second bracket.

3. The support and limiting structure for a compressor station as described in claim 2, characterized in that: A fixed seat is fixedly provided on the inner side wall of the steel frame on the side of the second bracket away from the first bracket. The driving assembly includes a sleeve, a threaded rod, and a driving component. A sliding groove is provided on the side of the fixed seat near the second bracket. The threaded rod is rotatably inserted into the sliding groove. One end of the sleeve is slidably inserted into the sliding groove and fitted onto the threaded section of the threaded rod. An inner edge is provided on the inner side wall of the other end of the sleeve. One end of the limiting pin is slidably inserted into the other end of the sleeve and is fixedly provided with an outer edge that can abut against the inner edge. The driving component is fixedly provided on the inner side wall of the steel frame and is connected to the threaded rod for transmission.

4. The support and limiting structure for a compressor station as described in claim 3, characterized in that: The vertical cross-section of the sleeve is annular, the inner sidewall of the slide groove is provided with a slot along its length, and the outer sidewall of the sleeve is fixedly provided with a protrusion that is slidably embedded in the slot along its length.

5. The support and limiting structure for a compressor station as described in claim 4, characterized in that: The diameter of the limiting hole is larger than the diameter of the limiting pin.

6. The support and limiting structure for a compressor station as described in claim 4, characterized in that: The top of the movable rod is fixedly provided with a protrusion that can abut against the top of the sleeve.

7. The support and limiting structure for a compressor station as described in any one of claims 1-6, characterized in that: The limiting hook, limiting component and driving component are symmetrically arranged in two sets on the steel frame.