Assembly structure of subway electric appliance cabinet

Abstract

The utility model discloses an assembling structure of a subway electric appliance cabinet, and relates to the technical field of electric appliance cabinets. The electric appliance cabinet structure comprises a cabinet body, a mounting bracket sleeved on the outer side of the cabinet body, and a cabinet door rotationally mounted at the front end of the cabinet body, a damping structure, comprising oil cylinders fixedly arranged at the upper end and the lower end of a cabinet body and symmetrically distributed, sealing rings embedded in the upper ends of the oil cylinders, plug rods slidably inserted in the sealing rings, supporting rings located at one ends of the plug rods, pistons connected to the outer walls of the supporting rings in a sleeving mode and slidably installed on the inner walls of the oil cylinders, and first springs fixedly arranged on the supporting rings and the inner walls of the oil cylinders. The oil holes are formed in the upper end and the lower end of the oil groove, are communicated with the interior of the oil cylinder and are located in the upper side and the lower side of the supporting ring. According to the utility model, through the arrangement of the damping structure, the problems of internal electrical assembly screw loosening, element displacement, insulating material fatigue and the like caused by long-term vibration of the cabinet body are solved, and the service life of equipment is threatened.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, and in particular to an assembly structure for a subway electrical cabinet. Background Technology

[0002] An electrical cabinet is a closed enclosure structure used for the centralized installation, protection, and management of electrical equipment. It typically contains electrical components such as circuit breakers, relays, contactors, power modules, and control modules. The electrical cabinet is one of the core devices for power supply and electrical control. Subway operation relies on a stable power supply and a complex electrical control system. The electrical cabinet provides power distribution and protection functions for the subway's power supply, signaling, communication, and lighting systems.

[0003] Chinese patent discloses a cabinet assembly structure for a subway electrical control cabinet (authorization announcement number CN220858637U). This patented technology includes an electrical control cabinet with a door at its open opening. Two I-shaped plates are slidably installed between the top and bottom walls of the cabinet. Two symmetrically arranged limiting shafts are fixedly installed on both the top and bottom walls of the cabinet. The limiting shafts have a semi-elliptical cross-section. The I-shaped plates are slidably connected to the limiting shafts. Multiple T-shaped plates arranged in an array are fixedly installed on the opposite sides of the two I-shaped plates. The vertical sidewalls of the T-shaped plates are fitted and slidably connected to the sidewalls of the electrical control cabinet. The T-shaped plates and I-shaped plates are integrally formed. A support plate is slidably installed between two T-shaped plates at the same height. This utility model provides a pre-installation structure for electrical components and the support structure within the cabinet, improving the installation efficiency of electrical components and making it suitable for widespread application.

[0004] This patented technology improves the installation efficiency of electrical components by setting up a pre-installation structure during use. However, there are still shortcomings in its use. When the power cabinet is used in the subway operating environment, the high-speed movement of the subway train will cause high-frequency vibrations due to wheel-rail contact, braking and starting, and uneven track. The frequency range is 10-200Hz, and the acceleration can reach 0.5-2g. If the power cabinet does not take vibration reduction measures, long-term vibration will lead to problems such as loose screws of internal electrical components, component displacement, and fatigue of insulation materials, threatening the life of the equipment. Therefore, those skilled in the art provide an assembly structure for subway electrical cabinets to solve the problems mentioned in the background art. Utility Model Content

[0005] 1. Technical Solution

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an assembly structure for a subway electrical cabinet, comprising:

[0008] The electrical cabinet structure includes a cabinet body, a mounting bracket sleeved on the outside of the cabinet body, and a cabinet door that is rotatably installed on the front end of the cabinet body;

[0009] The shock-absorbing structure includes oil cylinders fixed at the upper and lower ends of the cabinet and symmetrically distributed, a sealing ring embedded in the upper end of the oil cylinder, a plug rod slidably inserted into the sealing ring, a support ring located at one end of the plug rod, a piston sleeved on the outer wall of the support ring and slidably installed on the inner wall of the oil cylinder, a spring fixed on the support ring and the inner wall of the oil cylinder, an oil groove opened on the inner wall of the oil cylinder and distributed in a ring array, and oil holes opened at the upper and lower ends of the oil groove and communicating with the inside of the oil cylinder and located on the upper and lower sides of the support ring.

[0010] as well as;

[0011] The opening and closing structure includes a valve block fixed at one end of the opening and closing cover, a mounting groove and a through hole that are opened inside the lower end of the cabinet and are interconnected, and a valve hole opened inside the valve block.

[0012] Furthermore, ventilation windows are provided at both ends of the cabinet, and filters are installed inside the ventilation windows. A handle is provided at the front end of the cabinet.

[0013] Specifically, the design of the ventilation windows and filters ensures ventilation and heat dissipation inside the cabinet while preventing dust and foreign objects from entering, avoiding short circuits or overheating of electrical components due to dust accumulation, and adapting to the humid and dusty environment of the subway.

[0014] Furthermore, a stroke groove is provided inside the lower end of the piston rod, and a guide rod is fixedly installed on the inner wall of the oil cylinder, which is slidably inserted into the stroke groove and located inside the spring.

[0015] Specifically, the cooperation between the guide rod and the stroke groove restricts the sliding path of the piston rod, preventing the piston from deflecting or jamming due to vibration, ensuring the linear motion stability of the shock absorption structure, improving the reliability of long-term use, and preventing the spring from shifting during extension and retraction.

[0016] Furthermore, the inner walls of the upper and lower ends of the oil cylinder are respectively provided with a second buffer sleeve and a first buffer sleeve. The first buffer sleeve is connected to the outside of the first spring, and the second buffer sleeve is connected to the outside of the plug rod.

[0017] Specifically, buffer sleeve one and buffer sleeve two respectively wrap around spring one and piston rod, reducing direct friction and collision noise between metal parts and buffering the impact force on the piston.

[0018] Furthermore, one end of the plug rod is connected to the inner wall of the mounting bracket via a sound-absorbing sleeve;

[0019] Specifically, the silencing sleeve further absorbs vibration noise when the plug rod contacts the mounting bracket, avoiding resonance noise caused by high-frequency vibration.

[0020] Furthermore, a valve stem is slidably inserted into both the valve hole and the through hole, and a mounting seat is provided at the lower end of the valve stem. A spring two, which is sleeved on the outside of the valve stem, is provided on the upper inner wall of the mounting seat and the mounting groove.

[0021] Specifically, the valve stem is supported by spring two and engaged inside the valve hole and through hole to position the valve block.

[0022] Furthermore, the mounting base is provided with a rotating shaft at both the front and rear ends, a rotating seat is rotatably sleeved on the outer wall of the rotating shaft, a torsion spring sleeved on the outside of the rotating shaft is provided between the mounting base and the rotating seat, and a handle is provided at one end of the mounting base;

[0023] Specifically, the pivot and torsion spring structure allows the handle to be flipped during operation. After use, the handle is supported by the torsional elasticity of the torsion spring and stored and hidden at the bottom of the cabinet.

[0024] 2. Beneficial effects

[0025] Compared with existing technologies, the advantages of this utility model are:

[0026] In this utility model, the cabinet structure of the power cabinet is installed in a designated position by a mounting bracket. During use, the electrical equipment inside the power cabinet is operated by opening and closing the cabinet door. During use, the impact force acting on the cabinet will first act on spring one. During the extension and contraction of spring one, it will drive the piston to slide inside the oil cylinder. The hydraulic oil inside the oil cylinder applies resistance to the piston when it flows. The extension and contraction of spring one is damped, thereby reducing the impact force, buffering and shock absorbing the cabinet, protecting the inside of the cabinet, and extending the service life of the cabinet.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0031] Figure 3 This is a partial side sectional view of the three-dimensional structure of the cabinet of this utility model;

[0032] Figure 4 This is a three-dimensional cross-sectional view of the oil cylinder of this utility model;

[0033] Figure 5 This is a side sectional three-dimensional structural diagram of the mounting groove of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 100. Appliance cabinet structure; 101. Mounting bracket; 102. Cabinet body; 103. Ventilation window; 104. Filter screen; 105. Cabinet door; 106. Handle;

[0036] 200. Shock-absorbing structure; 201. Silencing sleeve; 202. Oil cylinder; 203. Sealing ring; 204. Stroke groove; 205. Support ring; 206. Oil groove; 207. Buffer sleeve one; 208. Oil hole; 209. Spring one; 210. Guide rod; 211. Piston; 212. Buffer sleeve two; 213. Plug rod;

[0037] 300. Opening and closing structure; 301. Valve block; 302. Valve hole; 303. Valve stem; 304. Mounting groove; 305. Pull handle; 306. Rotating seat; 307. Through hole; 308. Torsion spring; 309. Mounting seat; 310. Rotating shaft; 311. Spring II. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] Example 1

[0043] Please see Figures 1-5 As shown, this embodiment is an assembly structure for a subway electrical cabinet, including:

[0044] The electrical cabinet structure 100 includes a cabinet body 102, a mounting bracket 101 sleeved on the outside of the cabinet body 102, and a cabinet door 105 rotatably mounted on the front end of the cabinet body 102.

[0045] The shock-absorbing structure 200 includes an oil cylinder 202 fixed at the upper and lower ends of the cabinet 102 and symmetrically distributed, a sealing ring 203 embedded in the upper end of the oil cylinder 202, a plug rod 213 slidably inserted into the sealing ring 203, a support ring 205 located at one end of the plug rod 213, a piston 211 sleeved on the outer wall of the support ring 205 and slidably installed on the inner wall of the oil cylinder 202, a spring 209 fixed on the support ring 205 and the inner wall of the oil cylinder 202, an oil groove 206 opened on the inner wall of the oil cylinder 202 and distributed in a ring array, and oil holes 208 opened at the upper and lower ends of the oil groove 206 and communicating with the inside of the oil cylinder 202 and located on the upper and lower sides of the support ring 205.

[0046] Both ends of the cabinet 102 are provided with ventilation windows 103, and the ventilation windows 103 are provided with filters 104. The front end of the cabinet 102 is provided with a handle 106.

[0047] The lower end of the stopper rod 213 has a stroke groove 204 inside, and the inner wall of the oil cylinder 202 has a guide rod 210 that is slidably inserted into the stroke groove 204 and located inside the spring 209.

[0048] The inner walls of the upper and lower ends of the oil cylinder 202 are respectively provided with buffer sleeve 212 and buffer sleeve 207. Buffer sleeve 207 is sleeved on the outside of spring 209, and buffer sleeve 212 is sleeved on the outside of the plug rod 213.

[0049] One end of the plug rod 213 is connected to the inner wall of the mounting bracket 101 through the silencing sleeve 201;

[0050] The vibration damping structure 200 is used;

[0051] Cabinet 102 uses a steel frame with a surface coated with an anti-corrosion coating; cabinet door 105 is connected to cabinet 102 via hinges, with a sealing strip embedded on the inside of the door, and is fixed to the subway equipment compartment base with bolts; upper and lower oil cylinders 202 are welded to the outer wall of cabinet 102, with an inner diameter of 50mm and filled with damping oil; piston 211 has a polyurethane sealing ring embedded on its outer edge; spring 209 is a 60Si2Mn alloy steel helical spring with a stiffness coefficient of 200N / mm; oil hole 208 has a diameter of 2mm and extends along the oil cylinder. Six sets of components are evenly distributed around the circumference of the 202. When the vibration of the subway is transmitted to the cabinet 102, the stopper rod 213 is forced to push the piston 211 to compress the spring 209. The damping oil in the oil cylinder 202 flows between the upper and lower chambers through the oil hole 208, converting mechanical energy into heat energy for dissipation. The spring 209 provides a reverse restoring force, forming a double buffer of spring and damping. The shock absorption structure 200 attenuates the high-frequency vibration with an acceleration of 0.5-2g to below 0.1g, preventing the fixing screw structure inside the solid from loosening and the component from displacement.

[0052] Example 2

[0053] Please see Figures 1-5 As shown, this embodiment further includes elements beyond those in embodiment 1;

[0054] as well as;

[0055] The opening and closing structure 300 includes a valve block 301 fixed at one end of the opening and closing cover, a mounting groove 304 and a through hole 307 opened inside the lower end of the cabinet 102 and interconnected with each other, and a valve hole 302 opened inside the valve block 301.

[0056] A valve stem 303 is slidably inserted into both the valve hole 302 and the through hole 307. A mounting seat 309 is provided at the lower end of the valve stem 303. A spring 311 is provided on the inner wall of the upper end of the mounting seat 309 and the mounting groove 304, which is sleeved on the outside of the valve stem 303.

[0057] The mounting base 309 has a rotating shaft 310 at both the front and rear ends. A rotating seat 306 is rotatably sleeved on the outer wall of the rotating shaft 310. A torsion spring 308 is sleeved on the outside of the rotating shaft 310 between the mounting base 309 and the rotating seat 306. A handle 305 is provided at one end of the mounting base 309.

[0058] Use of the opening and closing structure 300;

[0059] After the cabinet door 105 closes to the cabinet body 102, the valve stem 303, supported by the second spring 311, is inserted into the valve hole 302 through the through hole 307, locking the cabinet door 105. During use, the positioning structure of the cabinet door 105 is located at the lower end of the cabinet body 102 and is stored inside the mounting groove 304, hidden at the lower end of the cabinet body 102. This prevents unauthorized personnel from opening the cabinet door 105, thus protecting the electrical structure inside the power cabinet. When the handle 106 is gripped, the rotating seat 306 rotates on the outer wall of the rotating shaft 310, and the torsion spring 308 is squeezed and twisted. The handle 106 is perpendicular to the valve stem 303, facilitating the longitudinal movement of the valve stem 303 and enabling the operation of the valve stem 303. It is also convenient to apply a pulling force to the valve stem 303.

[0060] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An assembly structure for a subway electrical cabinet, characterized in that: Including, The electric appliance cabinet structure (100) includes a cabinet body (102), a mounting bracket (101) sleeved on the outside of the cabinet body (102), and a cabinet door (105) rotatably mounted on the front end of the cabinet body (102); The damping structure (200) includes oil cylinders (202) fixedly arranged on the upper and lower ends of the cabinet body (102), a sealing ring (203) embeddedly mounted on the inner upper end of the oil cylinder (202), a plug rod (213) slidingly inserted into the inner sealing ring (203), a support ring (205) located at one end of the plug rod (213), a piston (211) sleeved on the outer wall of the support ring (205) and slidingly mounted on the inner wall of the oil cylinder (202), a spring one (209) fixedly arranged on the inner wall of the oil cylinder (202), oil grooves (206) arranged in an annular array on the inner wall of the oil cylinder (202), and oil holes (208) arranged on the upper and lower ends of the oil grooves (206) and communicating with the inner oil cylinder (202) and located on the upper and lower sides of the support ring (205); And The opening and closing structure (300) includes a valve block (301) fixedly arranged on one end of the opening and closing cover, a mounting groove (304) and a through hole (307) arranged on the inner lower end of the cabinet body (102) and communicating with each other, and a valve hole (302) arranged on the inner valve block (301).

2. The assembly structure of a subway electrical cabinet according to claim 1, characterized in that: The cabinet body (102) is provided with a heat dissipation window (103) on both ends, the heat dissipation window (103) is provided with a filter screen (104) inside, and the cabinet body (102) is provided with a handle (106) on the front end.

3. The assembly structure of a subway electric appliance cabinet according to claim 1, characterized in that: The inner lower end of the plug rod (213) is provided with a stroke groove (204), and the inner wall of the oil cylinder (202) is fixedly provided with a guide rod (210) slidingly inserted into the inner stroke groove (204) and located in the inner spring one (209).

4. The assembly structure of a subway electric appliance cabinet according to claim 1, characterized in that: The inner walls of the upper and lower ends of the oil cylinder (202) are respectively provided with a buffer sleeve two (212) and a buffer sleeve one (207), the buffer sleeve one (207) is sleeved on the outer side of the spring one (209), and the buffer sleeve two (212) is sleeved on the outer side of the plug rod (213).

5. The assembly structure of a subway electric appliance cabinet according to claim 1, characterized in that: One end of the plug rod (213) is connected with the inner wall of the mounting bracket (101) through the sound-absorbing sleeve (201).

6. The assembly structure of a subway electric appliance cabinet according to claim 1, characterized in that: Valve rods (303) are slidingly inserted into the inner valve hole (302) and the through hole (307), the lower end of the valve rod (303) is provided with a mounting seat (309), the mounting seat (309) and the inner wall of the upper end of the mounting groove (304) are provided with a spring two (311) sleeved on the outer side of the valve rod (303).

7. The assembly structure of a subway electric appliance cabinet according to claim 6, characterized in that: The mounting seat (309) is provided with a rotating shaft (310) on both front and rear ends, the rotating shaft (310) is rotatably sleeved with a rotating seat (306) on the outer wall, the mounting seat (309) and the rotating seat (306) are provided with a torsional spring (308) sleeved on the outer side of the rotating shaft (310), and one end of the mounting seat (309) is provided with a pull handle (305).

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