Installation Method and Device for Ensuring Train Operation Safety of Civil Air Conditioners on Non-Passenger Trains

Abstract

The present invention discloses an installation method and device for ensuring the driving safety of a civilian air conditioner on a non-passenger train, including a fixing plate, a support frame, an installation frame, a clamping frame, and an air conditioner. The fixing plate is installed vertically on the side wall inside the train, and the support frame is connected to the lower part of the fixing plate. The present invention solves the problems that when a civilian air conditioner is used on a train, the vibration and impact affect the loosening of the air conditioner circuit, resulting in faults such as overcurrent in the circuit, electrical sparking, and even potential safety hazards such as fires. Moreover, the whole machine is fixed with anti-impact and anti-shaking designs to reduce the damage of the air conditioner. In addition to the above technologies for the installation machinery and environment of the air conditioner, the installation method also includes upgrading and transforming the connection method and fixing method of the original internal electrical circuit of the civilian air conditioner installed on the train according to the operating technical conditions of the railway passenger train air conditioner unit and the wiring rules of railway passenger cars, etc., making it more in line with the safety technical requirements for the operation of railway non-passenger trains.

Description

Technical Field

[0001] The present invention belongs to the field of equipment related to railway transport vehicles, and particularly relates to an installation method and device for ensuring driving safety of a civilian air conditioner on non-passenger trains. Background Art

[0002] Household appliances such as air conditioners installed and used on non-passenger vehicles such as railway freight trains and camping cars for logistics support projects widely adopt ordinary civilian air conditioners considering factors such as applicability, practicability, high cost performance, and ease of maintenance. Since the usage scenarios of civilian air conditioners are quite different from those of operating trains, after direct installation and operation, they cannot fully meet the requirements of environmental conditions such as vibration and impact during train operation, posing great potential safety hazards. After upgrading and transformation, the driving safety of trains can be better ensured. The differences in usage scenarios are mainly reflected in the following aspects: ① The power cord of civilian air conditioners uses a screw connection to the air switch, which is prone to loosening during long-term vehicle operation and shaking, resulting in poor contact, local overheating, excessive current, the insulating rubber of the wire becoming hot and smoking, and even causing a fire; ② The AC220V lines of the air conditioner circuit board mostly use plug-in connections, and the power cord and circuit board wires are not fixed in a way that meets the vibration reduction requirements of railway vehicles, causing potential safety hazards such as loosening, virtual connection, and overcurrent during long-term operation; ③ The internal wire harness fixing method of civilian air conditioners cannot fully meet the train operation state; ④ The original design of the external unit of civilian air conditioners is to be hung on the building wall. Therefore, the center of gravity is relatively high, and it is only fixed at the bottom. If the original wall-hanging method is directly used for installation on the vehicle, due to the vibration during train operation or the collision during train formation, the external unit of the air conditioner will have a large shaking amplitude during train operation, affecting the normal use of the air conditioner. Therefore, an installation device for ensuring driving safety of a civilian air conditioner on non-passenger trains and a modification method for air conditioners are needed to modify ordinary civilian air conditioners and install them on trains to better ensure the safe operation of trains and air conditioners. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides an installation method and device for ensuring driving safety of a civilian air conditioner on non-passenger trains, which can solve the problem that existing civilian air conditioners cannot meet the train installation requirements.

[0004] The present invention is achieved through the following technical solutions.

[0005] A device for ensuring the driving safety of a civil air conditioner on a non-passenger train provided by the present invention includes a fixing plate, a support frame, a mounting frame, a clamping frame, and an air conditioner. The fixing plate is vertically installed on the side wall inside the train. The support frame is connected to the lower part of the fixing plate. The lower part of the mounting frame is hinged to the upper part of the support frame. The air conditioner is installed on the upper part of the mounting frame by screws. The clamping frame is fixed on the upper part of the air conditioner, and one side of the clamping frame is connected to the upper part of the fixing plate through a damping shock absorber.

[0006] A connecting ring A is provided on the support frame, and a connecting ring B is provided on the mounting frame. The connecting ring B is located above the connecting ring A, and a maintenance lock is provided between the connecting ring A and the connecting ring B.

[0007] The maintenance lock is U-shaped. The outer diameters of both ends of the maintenance lock are the same as the inner diameters of the connecting ring A and the connecting ring B. Steel balls are provided at both ends of the maintenance lock, and the steel balls protrude 0.5 mm to 1 mm from the maintenance lock.

[0008] Cavities are provided at both ends of the maintenance lock. The steel balls are installed at the upper and lower parts of the cavities, and a spring piece is provided between the steel balls.

[0009] The clamping frame includes a cross beam and clamping blocks. The cross beam is located on one side of the air conditioner, and the clamping blocks are located on the other side of the air conditioner. A pull rod is provided on the clamping block. One end of the pull rod is connected to the clamping block, and the other end passes through the upper part of the cross beam and is connected to the cross beam by screws. The direction of the screws is parallel to the direction of the pull rod, and a limiting ring is provided at the position where the screws contact the cross beam.

[0010] The damping shock absorber includes an outer cylinder, an inner cylinder, and a piston. One end of the outer cylinder is sleeved outside the inner cylinder. Two baffle plates are provided inside the inner cylinder. The piston is installed between the baffle plates. A piston rod is provided inside the outer cylinder. One end of the piston rod is connected to the outer cylinder, and the other end passes through the baffle plate and is connected to the piston. A sealing ring is provided between the baffle plate and the piston rod. Springs are provided outside the inner cylinder and the outer cylinder, and both ends of the springs are fixedly connected to the inner cylinder and the outer cylinder respectively.

[0011] Silicone oil is filled in the space surrounded by the baffle plate and the inner cylinder, and a plurality of through holes are provided on the piston.

[0012] An installation method for ensuring the driving safety of a civil air conditioner on a non-passenger train is characterized by including the following steps:

[0013] Step S1: Modify the outdoor unit of the civil air conditioner;

[0014] Step S2: Fix the fixing plate on the side wall inside the train and insert the maintenance lock into the connecting ring A and the connecting ring B;

[0015] Step S3: Install the modified outdoor unit of the air conditioner on the mounting frame;

[0016] Step S4: Place the clamping frame on the upper part of the air conditioner outdoor unit, tighten the screws, and then connect the clamping frame to the fixed plate through the damping shock absorber;

[0017] Step S5: Install the air conditioner indoor unit, cooling pipe, strong electricity, and weak electricity;

[0018] Step S6: Remove the maintenance lock to complete the installation.

[0019] The transformation method of step S1 includes: replacing the air conditioner power cord with a flame-retardant wire that meets the requirements of railway passenger vehicles, fixing the wiring sockets on the circuit board inside the air conditioner with soldering, connecting the air conditioner power cord using the cage-type spring wiring method, fixing and tightening all the circuit board wire harnesses inside the air conditioner outdoor unit with nylon cable ties, and for the air conditioner outdoor unit heat dissipation system, adopting an installation method of adding a flow guide cover and a forced exhaust fan device for heat dissipation.

[0020] The beneficial effects of the present invention are as follows: It solves the problems of circuit overcurrent, electrical arcing, and other faults, and even potential safety hazards such as fires caused by the loosening of the air conditioner circuit due to vibration and impact when using a civilian air conditioner on a train. Moreover, the whole machine is fixed with an anti-impact and anti-shake design to reduce air conditioner damage. In addition to the above technologies for the air conditioner installation machinery and environment, the installation method also includes upgrading the connection method and fixing method of the original internal electrical circuit of the civilian air conditioner installed on the train in accordance with the technical conditions for the operation of railway passenger train air conditioner units and the wiring rules for railway passenger cars, making it more in line with the safety technical requirements for the operation of railway non-passenger trains. Description of the Drawings

[0021] Figure 1 is the structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the support frame;

[0023] Figure 3 is the structural schematic diagram of the clamping frame;

[0024] Figure 4 is the structural schematic diagram of the maintenance lock;

[0025] Figure 5 is the structural schematic diagram of the damping shock absorber;

[0026] In the figure: 1 - fixed plate, 2 - support frame, 3 - mounting frame, 4 - clamping frame, 5 - air conditioner, 6 - damping shock absorber, 7 - connecting ring A, 8 - connecting ring B, 9 - maintenance lock, 10 - steel ball, 11 - cavity, 12 - spring sheet, 13 - cross beam, 14 - pull rod, 15 - clamping block, 16 - screw, 17 - limiting ring, 18 - outer cylinder, 19 - inner cylinder, 20 - piston, 21 - baffle plate, 22 - piston rod, 23 - spring. Detailed Embodiments

[0027] The technical solution of the present invention will be further described below, but the scope of protection is not limited thereto.

[0028] As Figures 1 to 5 shown, a device for ensuring the driving safety of a civil air conditioner on a non-passenger train includes a fixing plate 1, a support frame 2, a mounting frame 3, a clamping frame 4, and an air conditioner 5. The fixing plate 1 is vertically installed on the side wall inside the train. The support frame 2 is connected to the lower part of the fixing plate 1. The lower part of the mounting frame 3 is hinged to the upper part of the support frame 2. The air conditioner 5 is installed on the upper part of the mounting frame 3 by screws. The clamping frame 4 is fixed on the upper part of the air conditioner 5, and one side of the clamping frame 4 is connected to the upper part of the fixing plate 1 through a damping shock absorber 6.

[0029] After the air conditioner 5 is installed on the mounting frame 3, during the operation of the train, when the train vibrates, the air conditioner 5 can swing on the support frame 2, thereby reducing the impact of vibration on the air conditioner. At the same time, the clamping frame 4 is fixed on the upper part of the air conditioner 5, and the swing amplitude of the air conditioner 5 can be quickly reduced through the damping shock absorber 6, so that the swung air conditioner 5 can quickly return to the horizontal position, ensuring the safe operation of the air conditioner 5 on the train.

[0030] A connecting ring A7 is provided on the support frame 2, and a connecting ring B8 is provided on the mounting frame 3. The connecting ring B8 is located above the connecting ring A7, and a maintenance lock 9 is provided between the connecting ring A7 and the connecting ring B8. After the maintenance lock 9 is inserted, the air conditioner 5 is fixed and cannot swing, facilitating the installation and maintenance by maintenance personnel.

[0031] The maintenance lock 9 is U-shaped. The outer diameters of both ends of the maintenance lock 9 are the same as the inner diameters of the connecting ring A7 and the connecting ring B8. Steel balls 10 are provided at both ends of the maintenance lock 9, and the steel balls 10 protrude 0.5 mm to 1 mm from the maintenance lock 9. After the steel balls 10 protrude, they can provide a certain amount of damping to prevent the maintenance lock 9 from accidentally loosening from the connecting ring A7 and the connecting ring B8, improving the safety.

[0032] Cavities 11 are provided at both ends of the maintenance lock 9. The steel balls 10 are installed at the upper and lower parts of the cavities 11, and a spring piece 12 is provided between the steel balls 10, so that the steel balls 10 can retract after being pressed, and the steel balls 10 can provide a certain amount of damping after protruding, preventing the maintenance lock 9 from accidentally loosening from the connecting ring A7 and the connecting ring B8, improving the safety.

[0033] The clamping bracket 4 includes a cross beam 13 and clamping blocks 15. The cross beam 13 is located on one side of the air conditioner 5, and the clamping blocks 15 are located on the other side of the air conditioner. A pull rod 14 is provided on the clamping blocks 15. One end of the pull rod 14 is connected to the clamping blocks 15, and the other end passes through the upper part of the cross beam 13 and is connected to the cross beam 13 by a screw 16. The direction of the screw 16 is parallel to the direction of the pull rod 14, and a limiting ring 17 is provided at the position where the screw 16 contacts the cross beam 13. When the screw 16 is tightened, it pushes the pull rod 14, so that the clamping blocks 15 and the cross beam 13 clamp the upper part of the air conditioner 5, and the clamping bracket 4 is fixed on the upper part of the air conditioner 5. The limiting ring 17 can fix the position of the screw 16.

[0034] The damping shock absorber 6 includes an outer cylinder 18, an inner cylinder 19, and a piston 20. One end of the outer cylinder 18 is sleeved outside the inner cylinder 19. Two baffle plates 21 are provided inside the inner cylinder 19. The piston 20 is installed between the baffle plates 21. A piston rod 22 is provided inside the outer cylinder 18. One end of the piston rod 22 is connected to the outer cylinder 18, and the other end passes through the baffle plates 21 and is connected to the piston 20. A sealing ring is provided between the baffle plates 21 and the piston rod 22. Springs 23 are provided outside the inner cylinder 19 and the outer cylinder 18. Both ends of the springs 23 are fixedly connected to the inner cylinder 19 and the outer cylinder 18 respectively. When the outer cylinder 18 and the inner cylinder 19 move relative to each other, the piston 20 moves in the baffle plates 21, so that the silicone oil flows through the through holes. Since the diameter of the through holes is small and the viscosity of the silicone oil is high, damping is provided, so that the air conditioner 5 can quickly stop swinging and return to the original position through the springs 23.

[0035] The space enclosed by the baffle plates 21 and the inner cylinder 19 is filled with silicone oil. A plurality of through holes are formed in the piston 20. When the piston 20 moves, the silicone oil on both sides of the piston 20 flows through the through holes. Since the diameter of the through holes is small and the viscosity of the silicone oil is high, the damping shock absorber 6 can provide damping so that the air conditioner 5 can quickly stop swinging.

[0036] An installation method for ensuring the driving safety of a civil air conditioner on a non-passenger train, characterized by comprising the following steps:

[0037] Step S1: Modify the external unit of the civil air conditioner to facilitate the external unit of the air conditioner to meet the safety operation requirements of the train.

[0038] Step S2: Fix the fixing plate on the side wall inside the train, and insert the maintenance lock into the connecting ring A and the connecting ring B, so that the mounting bracket cannot swing on the support bracket, which is convenient for installing the external unit of the air conditioner.

[0039] Step S3: Install the modified external unit of the air conditioner on the mounting bracket.

[0040] Step S4: Place the clamping bracket on the upper part of the external unit of the air conditioner and tighten the screws, and then connect the clamping bracket to the fixing plate through the damping shock absorber, so that the clamping bracket can be fixed on the external unit of the air conditioner.

[0041] Step S5: Install the indoor air conditioner, cooling pipe, strong electricity, and weak electricity.

[0042] Step S6: Remove the maintenance lock to complete the installation.

[0043] The transformation method in step S1 includes: replacing the air conditioner power cord with a flame-retardant wire that meets the requirements of railway passenger vehicle units to improve the flame-retardant ability of the air conditioner wire; fixing the wiring socket on the circuit board inside the air conditioner by soldering. After soldering, the wiring socket is firmly connected, which can prevent the air conditioner from having loose connections caused by vibration and impact, and improve the anti-vibration performance of the air conditioner; adopting a cage spring wiring method to connect the air conditioner power cord, making the connection between the air conditioner wire and the power cord firm; fixing and tightening all the circuit board wire harnesses inside the outdoor unit of the air conditioner with nylon cable ties to avoid the wire swing during vibration and affect the service life of the wire; for the heat dissipation system of the outdoor unit of the air conditioner, an installation method of adding a deflector and a forced exhaust fan device for heat dissipation is adopted to increase the ventilation efficiency between the space of the outdoor unit of the air conditioner and the outside atmosphere, and avoid the shutdown caused by overheating of the outdoor unit of the air conditioner.

Claims

1. Device for ensuring train operation safety of civilian air conditioners on non - passenger trains, characterized in that: It includes a fixed plate (1), a support frame (2), a mounting frame (3), a clamping frame (4), and an air conditioner (5). The fixed plate (1) is vertically installed on the side wall inside the train. The support frame (2) is connected to the lower part of the fixed plate (1). The lower part of the mounting frame (3) is hinged to the upper part of the support frame (2). The air conditioner (5) is installed on the upper part of the mounting frame (3) by screws. The clamping frame (4) is fixed on the upper part of the air conditioner (5), and one side of the clamping frame (4) is connected to the upper part of the fixed plate (1) through a damping shock absorber (6); A connecting ring A (7) is provided on the support frame (2), a connecting ring B (8) is provided on the mounting frame (3), the connecting ring B (8) is located above the connecting ring A (7), and a maintenance lock (9) is provided between the connecting ring A (7) and the connecting ring B (8); The clamping frame (4) includes a cross beam (13) and a clamping block (15). The cross beam (13) is located on one side of the air conditioner (5), the clamping block (15) is located on the other side of the air conditioner, a pull rod (14) is provided on the clamping block (15), one end of the pull rod (14) is connected to the clamping block (15), and the other end passes through the upper part of the cross beam (13) and is connected to the cross beam (13) by a screw (16). The direction of the screw (16) is parallel to the direction of the pull rod (14), and a limiting ring (17) is provided at the position where the screw (16) contacts the cross beam (13).

2. The device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to claim 1, characterized in that: The maintenance lock (9) is U-shaped. The outer diameters of both ends of the maintenance lock (9) are the same as the inner diameters of the connecting ring A (7) and the connecting ring B (8). Steel balls (10) are provided at both ends of the maintenance lock (9), and the steel balls (10) protrude 0.5 mm to 1 mm from the maintenance lock (9).

3. The device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to claim 2, characterized in that: Cavities (11) are provided at both ends of the maintenance lock (9). The steel balls (10) are installed at the upper and lower parts of the cavities (11), and a spring piece (12) is provided between the steel balls (10).

4. The device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to claim 1, characterized in that: The damping shock absorber (6) includes an outer cylinder (18), an inner cylinder (19), and a piston (20). One end of the outer cylinder (18) is sleeved outside the inner cylinder (19). Two baffle plates (21) are provided inside the inner cylinder (19). The piston (20) is installed between the baffle plates (21). A piston rod (22) is provided inside the outer cylinder (18). One end of the piston rod (22) is connected to the outer cylinder (18), and the other end passes through the baffle plate (21) and is connected to the piston (20). A sealing ring is provided between the baffle plate (21) and the piston rod (22). Springs (23) are provided outside the inner cylinder (19) and the outer cylinder (18), and both ends of the springs (23) are fixedly connected to the inner cylinder (19) and the outer cylinder (18) respectively.

5. The device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to claim 4, characterized in that: The space enclosed by the baffle plate (21) and the inner cylinder (19) is filled with silicone oil, and a plurality of through holes are provided on the piston (20).

6. Installation method of the device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to any one of claims 1 to 5, characterized in that, It includes the following steps: Step S1: Modify the civilian air conditioner outdoor unit; Step S2: Fix the fixed plate on the side wall inside the train and insert the maintenance lock into the connecting ring A and the connecting ring B; Step S3: Install the modified air conditioner outdoor unit on the mounting frame; Step S4: Place the clamping frame on the upper part of the air conditioner outdoor unit, tighten the screws, and then connect the clamping frame to the fixed plate through the damping shock absorber; Step S5: Install the air conditioner indoor unit, cooling pipe, strong electricity, and weak electricity; Step S6: Remove the maintenance lock to complete the installation.

7. The installation method of the device for ensuring train operation safety of civilian air conditioners on non - passenger trains according to claim 6, characterized in that: The transformation method of the said Step S1 includes: replacing the air conditioner power cord with a flame-retardant wire compliant with the use of railway passenger vehicle units; fixing the wiring sockets on the circuit board inside the air conditioner by soldering; connecting the air conditioner power cord using the cage spring wiring method; fixing and tightening all the circuit board wire harnesses inside the outdoor unit of the air conditioner with nylon cable ties; for the heat dissipation system of the outdoor unit of the air conditioner, an installation method of adding a flow deflector and a forced exhaust fan device for heat dissipation is adopted.

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