High-stability spider car oil cylinder
By introducing a stabilizing limit component and a hydraulic oil heating component into the spider engine's hydraulic cylinder, the problem of insufficient stability of the cylinder during piston rod movement was solved, enabling stable operation and normal use of the cylinder in low-temperature environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGDE JIAHUI HYDRAULIC MASCH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
The existing spider car hydraulic cylinder is prone to tilting and wobbling during the reciprocating movement of the piston rod, resulting in insufficient stability. It may also bend due to pressure or external force, affecting normal use.
It employs a stabilizing limit component and a hydraulic oil heating component. The stabilizing limit component includes an outer ring, a fixing block, a guide rod, a limit block, an infrared transmitter, and an infrared receiver. The bending of the guide rod is monitored by infrared light signals. The guide rod is made of carbon fiber reinforced material. The hydraulic oil heating component maintains oil pressure balance through a micro pump and a circulation pump to avoid the effects of low temperature.
It improves the stability of the hydraulic cylinder, prevents the piston rod from tilting and swaying, distributes radial load, ensures the hydraulic cylinder works normally in low-temperature environments, and avoids poor hydraulic oil flow caused by low temperature.
Smart Images

Figure CN224453268U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spider car hydraulic cylinder technology, specifically to a highly stable spider car hydraulic cylinder. Background Technology
[0002] Spider lifts, also known as spider-type aerial work platforms, are advanced mechanical equipment used for high-altitude operations. They are named for their unique outrigger structure, which resembles the legs of a spider. They are mainly used in industries such as construction, power, communications, advertising, and fire protection. Due to their high flexibility and versatility, they have become an important tool for high-altitude operations in recent years. The spider lift cylinder is one of the key components of the spider lift.
[0003] When the existing spider car hydraulic cylinder is in use, the piston rod is subjected to uneven force during the reciprocating movement. Therefore, after a long period of use, it is prone to tilting and wobbling, resulting in insufficient stability. Furthermore, it may bend due to pressure or other external forces, thus affecting the normal use of the hydraulic cylinder.
[0004] In view of this, we have studied and improved the existing structure and its shortcomings, and proposed a highly stable spider car hydraulic cylinder. Utility Model Content
[0005] To address the aforementioned problems, the purpose of this invention is to provide a highly stable spider engine hydraulic cylinder.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a highly stable spider car hydraulic cylinder, comprising a cylinder barrel, a piston rod, and a stabilizing and limiting assembly. A piston rod is provided on one side of the cylinder barrel, and trunnions are fixed to both the tail end of the cylinder barrel and the front end of the piston rod. A stabilizing and limiting assembly is installed on the outer side of the piston rod and the cylinder barrel. The stabilizing and limiting assembly includes an outer ring sleeve, a fixing block, a guide rod, a limiting block, an infrared transmitter, and an infrared receiver. The outer ring sleeve is fixed to the outer side of the piston rod, and three fixing blocks are uniformly fixed in an array on the outer wall of the outer ring sleeve. A guide rod is threaded onto one side of the fixing block, and the guide rod has a hollow structure. A limiting block is threaded onto the other end of the guide rod. An infrared transmitter and an infrared receiver are respectively installed inside the fixing block and the limiting block.
[0007] Furthermore, a hydraulic oil heating assembly is installed on the outer side of the tail of the cylinder barrel. The hydraulic oil heating assembly includes an outer oil reservoir frame, which has a ring-shaped structure and is fixedly connected to the cylinder barrel.
[0008] Furthermore, the hydraulic oil heating assembly also includes a micro pump and a micro circulation pump. The micro pump and the micro circulation pump are symmetrically installed on the outer side of the tail of the cylinder, and both the micro pump and the micro circulation pump are located inside the outer oil storage frame.
[0009] Furthermore, the hydraulic oil heating assembly also includes a heating layer, a filter screen, and a temperature sensor. The inner wall of the outer oil reservoir is provided with a heating layer, and a filter screen is fixed inside the outer oil reservoir. A temperature sensor is installed on one side of the inner side of the outer oil reservoir.
[0010] Furthermore, the stabilizing and limiting component also includes guide frames. Three guide frames are uniformly fixed in an array on the outer side of the cylinder barrel. The guide rod is located inside the guide frame and is slidably connected to the guide frame.
[0011] Furthermore, the outer side of the cylinder barrel is connected to multiple protective outer rings via connecting rods, and the multiple protective outer rings are concentric with the cylinder barrel.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. Equipped with a hydraulic oil heating component, the outer oil reservoir stores a certain amount of hydraulic oil. A miniature pump draws hydraulic oil from inside the cylinder into the outer oil reservoir, while a miniature circulation pump returns the hydraulic oil from the outer oil reservoir to the cylinder to ensure oil pressure balance. The heating layer heats the hydraulic oil in the outer oil reservoir, and a temperature sensor monitors the oil temperature. In winter, this prevents poor hydraulic oil flow and insufficient power caused by low temperatures.
[0014] 2. Equipped with a stable limiting component, during the extension and retraction of the piston rod on one side of the cylinder, the outer ring sleeve moves synchronously, which in turn drives the fixed block and guide rod to extend and retract, allowing the three guide rods to slide inside the guide frame, playing a guiding role, limiting the piston rod's skew and making the piston rod's movement more stable. The guide rods are made of carbon fiber reinforced material, and the three guide rods can play a multi-dimensional support role, thereby dispersing the radial load of the cylinder and piston rod. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the cylinder barrel of this utility model;
[0016] Figure 2 This is an exploded view of the stable limiting component of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the hydraulic oil heating component of this utility model.
[0019] In the diagram: 1. Cylinder barrel; 2. Piston rod; 3. Trunnion; 4. Hydraulic oil heating assembly; 401. Outer oil reservoir frame; 402. Heating layer; 403. Miniature pump; 404. Miniature circulating pump; 405. Filter screen; 406. Temperature sensor; 5. Stabilizing and limiting assembly; 501. Outer ring; 502. Fixing block; 503. Guide rod; 504. Limiting block; 505. Guide frame; 506. Infrared transmitter; 507. Infrared receiver; 6. Connecting rod; 7. Protective outer ring. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] like Figure 1 , Figure 3 and Figure 4 As shown, a highly stable spider car hydraulic cylinder of this embodiment includes a cylinder barrel 1, a piston rod 2, and a stabilizing and limiting component 5. The piston rod 2 is provided on one side of the cylinder barrel 1, and trunnions 3 are fixed to both the tail end of the cylinder barrel 1 and the front end of the piston rod 2. A hydraulic oil heating component 4 is installed on the outer side of the tail end of the cylinder barrel 1, and the hydraulic oil heating component 4 includes an outer oil reservoir frame 401, which has an annular structure and is fixedly connected to the cylinder barrel 1. The hydraulic oil heating component 4 also includes a micro pump 403 and a micro circulation pump. 404. A miniature liquid pump 403 and a miniature circulation pump 404 are symmetrically installed on the outer side of the tail of the cylinder 1. Both the miniature liquid pump 403 and the miniature circulation pump 404 are located inside the outer oil storage frame 401. The hydraulic oil heating assembly 4 also includes a heating layer 402, a filter screen 405 and a temperature sensor 406. The inner wall of the outer oil storage frame 401 is provided with a heating layer 402. A filter screen 405 is fixed in the middle of the inner side of the outer oil storage frame 401. A temperature sensor 406 is installed on one side of the inner side of the outer oil storage frame 401.
[0022] Specifically, the trunnion 3 facilitates the installation and use of the cylinder barrel 1 and piston rod 2. The outer oil reservoir 401 stores a certain amount of hydraulic oil. The micro pump 403 facilitates the pumping of hydraulic oil from the cylinder barrel 1 into the outer oil reservoir 401. At the same time, the micro circulation pump 404 facilitates the return of hydraulic oil from the outer oil reservoir 401 to the cylinder barrel 1 to ensure oil pressure balance. The heating layer 402 can heat the hydraulic oil in the outer oil reservoir 401. The temperature sensor 406 can detect the oil temperature. In winter, the hydraulic oil can be heated to avoid poor hydraulic oil flow and insufficient power due to low temperature. When the hydraulic oil from the micro pump 403 side enters the micro circulation pump 404 side, it can be filtered for impurities through the filter screen 405.
[0023] like Figures 1-3 As shown, a stabilizing and limiting assembly 5 is installed on the outer side of the piston rod 2 and the cylinder 1. The stabilizing and limiting assembly 5 includes an outer ring sleeve 501, a fixing block 502, a guide rod 503, a limiting block 504, an infrared transmitter 506, and an infrared receiver 507. The outer ring sleeve 501 is fixed to the outer side of the piston rod 2, and three fixing blocks 502 are evenly fixed in an array on the outer wall of the outer ring sleeve 501. A guide rod 503 is threaded onto one side of the fixing block 502, and the guide rod 503 has a hollow structure. The other side of the guide rod 503... One end is threaded to a limit block 504. An infrared transmitter 506 and an infrared receiver 507 are respectively installed inside the fixing block 502 and the limit block 504. The stabilizing limit assembly 5 also includes a guide frame 505. Three guide frames 505 are uniformly fixed in an array on the outside of the cylinder 1. The guide rod 503 is located inside the guide frame 505 and is slidably connected to the guide frame 505. Multiple protective outer rings 7 are connected to the outside of the cylinder 1 through a connecting rod 6. The multiple protective outer rings 7 are concentric with the cylinder 1.
[0024] Specifically, during the extension and retraction of the piston rod 2 on one side of the cylinder 1, it can drive the outer outer ring 501 to move synchronously, thereby driving the fixed block 502 and guide rod 503 to extend and retract, allowing the three guide rods 503 to slide inside the guide frame 505 to play a guiding role, limiting the swaying of the piston rod 2 and making the movement of the piston rod 2 more stable; at the same time, the guide rods 503 are made of carbon fiber reinforced material, and the three guide rods 503 can also play a multi-dimensional support role, thereby distributing the radial load of the cylinder 1 and piston rod 2; guide rod 5 The hollow structure of the guide rod 503 allows the infrared transmitter 506 and infrared receiver 507 at both ends to emit and receive infrared light respectively, so as to detect the bending of the guide rod 503 in time. If the guide rod 503 is excessively bent, the infrared receiver 507 will not be able to receive infrared light. The two ends of the guide rod 503 are threadedly connected to the fixing block 502 and the limiting block 504, which facilitates the replacement of the guide rod 503. The three connecting rods 6 are used to support the protective outer rings 7. The multiple protective outer rings 7 are located on the outside of the cylinder barrel 1 and the guide rod 503, which can provide pressure protection for the cylinder barrel 1.
[0025] Working principle: When using this highly stable spider car hydraulic cylinder, the cylinder barrel 1 and piston rod 2 are first installed on the spider car via the trunnion 3. During the extension and retraction of the piston rod 2 on one side of the cylinder barrel 1, it can drive the outer outer ring sleeve 501 to move synchronously, thereby driving the fixed block 502 and guide rod 503 to extend and retract. This allows the three guide rods 503 to slide inside the guide frame 505, playing a guiding role and limiting the swaying of the piston rod 2, making the movement of the piston rod 2 more stable. The guide rods 503 are made of carbon fiber reinforced material. 503 provides multi-dimensional support, distributing the radial load of the cylinder 1 and piston rod 2. The hollow structure of the guide rod 503 allows the infrared transmitter 506 and infrared receiver 507 at both ends to emit and receive infrared light respectively, so as to detect the bending of the guide rod 503 in time. If the guide rod 503 is excessively bent, the infrared receiver 507 will not be able to receive infrared light, and the controller connected to it can issue an alarm. The two ends of the guide rod 503 are threadedly connected to the fixing block 502 and the limiting block 504, which facilitates the replacement of the guide rod 503.
[0026] During use, the outer oil reservoir 401 stores a certain amount of hydraulic oil. In cold winter weather, the heating layer 402 can heat the hydraulic oil in the outer oil reservoir 401. The micro pump 403 can draw the hydraulic oil inside the cylinder 1 into the outer oil reservoir 401. At the same time, the micro circulation pump 404 can return the hydraulic oil in the outer oil reservoir 401 to the cylinder 1 to ensure the oil pressure balance in the cylinder 1. The temperature sensor 406 can detect the oil temperature to avoid poor hydraulic oil flow and insufficient power caused by low temperature use. When the hydraulic oil on the side of the micro pump 403 enters the micro circulation pump 404, the filter screen 405 can filter impurities. The three connecting rods 6 on the outside of the cylinder 1 are used to support the protective outer ring 7. The multiple protective outer rings 7 are located on the outside of the cylinder 1 and the guide rod 503 to provide pressure protection for the cylinder 1. This completes the use process of the highly stable spider car cylinder.
[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A high-stability spider car oil cylinder comprising a cylinder barrel (1), a piston rod (2) and a stabilizing and limiting assembly (5), characterized in that, A piston rod (2) is provided on one side of the cylinder (1), and trunnions (3) are fixed to the tail end of the cylinder (1) and the front end of the piston rod (2). A stabilizing and limiting assembly (5) is installed on the outside of the piston rod (2) and the cylinder (1). The stabilizing and limiting assembly (5) includes an outer ring sleeve (501), a fixing block (502), a guide rod (503), a limiting block (504), an infrared transmitter (506), and an infrared receiver (507). The outer ring sleeve (501) Three fixing blocks (502) are evenly fixed in an array on the outer wall of the outer ring sleeve (501) and fixed to the outside of the piston rod (2). A guide rod (503) is threaded to one side of the fixing block (502), and the guide rod (503) has a hollow structure. A limit block (504) is threaded to the other end of the guide rod (503). An infrared transmitter (506) and an infrared receiver (507) are respectively installed inside the fixing block (502) and the limit block (504).
2. The high-stability spider car oil cylinder according to claim 1, wherein A hydraulic oil heating assembly (4) is installed on the outer side of the tail of the cylinder (1). The hydraulic oil heating assembly (4) includes an outer oil storage frame (401). The outer oil storage frame (401) has an annular structure and is fixedly connected to the cylinder (1).
3. The high-stability spider car oil cylinder according to claim 2, wherein The hydraulic oil heating assembly (4) also includes a micro pump (403) and a micro circulation pump (404). The micro pump (403) and the micro circulation pump (404) are symmetrically installed on the outer side of the tail of the cylinder (1), and the micro pump (403) and the micro circulation pump (404) are both located inside the outer oil storage frame (401).
4. The high-stability spider car oil cylinder according to claim 3, wherein The hydraulic oil heating assembly (4) further includes a heating layer (402), a filter screen (405) and a temperature sensor (406). The inner wall of the outer oil storage frame (401) is provided with a heating layer (402), and a filter screen (405) is fixed inside the outer oil storage frame (401). A temperature sensor (406) is installed on one side inside the outer oil storage frame (401).
5. The high-stability spider car oil cylinder of claim 1, wherein, The stabilizing and limiting component (5) also includes a guide frame (505). Three guide frames (505) are uniformly fixed in an array on the outer side of the cylinder (1). The guide rod (503) is located inside the guide frame (505) and is slidably connected to the guide frame (505).
6. The high-stability spider car oil cylinder of claim 1, wherein, The outer side of the cylinder barrel (1) is connected to multiple protective outer rings (7) by a connecting rod (6), and the multiple protective outer rings (7) and the cylinder barrel (1) are in a concentric circle structure.