Pneumatic control unit structure for metro coupler

Abstract

The utility model belongs to the field of coupler opening and closing control, and particularly relates to a pneumatic control unit structure for a metro coupler, which comprises a valve seat, and a first pneumatic control valve is connected to the middle of the valve seat through a bolt; the middle part of the valve seat is in bolted connection with a second pneumatic control valve; a plurality of air outlet holes are formed in the middle of the valve seat; a plurality of air inlet holes are formed in the top of the valve seat; a clamp spring is arranged in the air inlet hole; a filter is arranged at the bottom of the clamp spring; the bottom of the middle of the clamping spring is fixedly connected with an extrusion plate. The surface of the extrusion plate is obliquely arranged; the extrusion plate is elastically arranged; a pair of fixing holes is formed in the surface of the clamping spring; a plurality of protruding blocks are fixedly connected to the inner side wall of the fixing hole. And through the cooperation effect of the clamping spring and the filter, a worker can quickly mount and dismount the filter through the clamping spring, and the convenience of the device in use of the filter is improved.

Description

Technical Field

[0001] The utility model relates to the field of coupler opening and closing control, in particular to a pneumatic control unit structure for a subway coupler. Background Art

[0002] The coupling and uncoupling of subway couplers is an important part of subway train operation. The coupling of subway couplers is mainly achieved through the coupler at the front end of the train. No human assistance is required. By driving one car towards another, the two cars can be automatically coupled and uncoupled with the help of the corresponding control module.

[0003] Existing subway coupler pneumatic control units usually use a pair of pneumatic control valves to control the coupler, and a filter is generally bolted to its surface. During use and observation, it was found that this connection method makes the removal and replacement of the filter more cumbersome, reducing the convenience of using the device.

[0004] Therefore, in order to solve the above problems, a pneumatic control unit structure for a subway coupler is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the air control unit structure for a subway coupler described in the present invention includes a valve seat, a first air control valve is connected to the middle bolt of the valve seat; a second air control valve is connected to the middle bolt of the valve seat; a plurality of air outlet holes are opened in the middle of the valve seat; a plurality of air inlet holes are opened on the top of the valve seat; a retaining spring is provided inside the air inlet hole; a filter is provided at the bottom of the retaining spring; through the cooperation of the retaining spring and the filter, the staff can quickly install and disassemble the filter through the retaining spring, thereby improving the convenience of the device when using the filter.

[0007] Preferably, an extrusion plate is fixed to the bottom middle part of the retaining spring; the surface of the extrusion plate is inclined; the extrusion plate is elastic; by setting the extrusion plate, the retaining spring will be squeezed by the extrusion plate after entering the internal groove of the air inlet, thereby increasing the contact area and extrusion effect between the retaining spring and the air inlet, and improving the convenience of fixing the retaining spring to the filter.

[0008] Preferably, a pair of fixing holes are opened on the surface of the retaining spring; a plurality of protrusions are fixed to the inner side walls of the fixing holes; when the filter needs to be disassembled, the staff needs to remove the retaining spring with tools such as retaining spring pliers, and the staff can connect the caliper and the retaining spring through the fixing holes and the protrusions. The protrusions will increase the contact area between the caliper and the fixing holes, increase the friction effect of the caliper on the retaining spring when operating, and improve the convenience of removing the retaining spring.

[0009] Preferably, sound-absorbing cotton is provided inside the air outlet; an elastic frame is symmetrically fixed to the middle of the sound-absorbing cotton; the elastic frame is located between the sound-absorbing cotton and the air outlet; when assembling the device, the staff can press a pair of elastic frames to make the pair of elastic frames approach each other, and the sound-absorbing cotton will be deformed under the squeezing action of the elastic frames, and then the staff can stuff the deformed sound-absorbing cotton into the air outlet. After the sound-absorbing cotton completely enters the air outlet, the elastic frame can be loosened, and the sound-absorbing cotton will recover under the elastic force of the elastic frame and be fixed inside the air outlet. The sound-absorbing cotton will absorb the sound generated by the flow of air, thereby reducing the noise generated when the device is working.

[0010] Preferably, a buffer pad is fixedly connected to the middle of the elastic frame; the buffer pad is located between the elastic frame and the air outlet; when the elastic frame is stuck inside the air outlet under the action of its own elastic force, the buffer pad will move with the elastic frame and contact the inner wall of the air outlet. Because the buffer pad is flexibly set, the impact generated when the elastic frame and the inside of the air outlet come into contact will be absorbed by the buffer pad, reducing damage to the elastic frame and the inner wall of the air outlet caused by squeezing.

[0011] Preferably, a sealing gasket is symmetrically fixed to the middle of the valve seat; the sealing gasket is located on the top of the first air-controlled valve and the second air-controlled valve and is correspondingly arranged; after the first air-controlled valve and the second air-controlled valve are bolted to the valve seat, there will still be a gap between the first air-controlled valve, the second air-controlled valve and the valve seat, and the sealing gasket can be used to seal the gap between the first air-controlled valve, the second air-controlled valve and the valve seat to reduce the contamination effect of dust and impurities in the air.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model discloses a pneumatic control unit structure for a subway coupler. Through the cooperation of the retaining spring and the filter, the staff can quickly install and remove the filter through the retaining spring, thereby improving the convenience of the device when using the filter.

[0014] 2. The air control unit structure for a subway coupler described in the utility model is equipped with an extrusion plate so that after the retaining spring enters the internal groove of the air inlet, the retaining spring will be squeezed by the extrusion plate, thereby increasing the contact area and extrusion effect between the retaining spring and the air inlet, and improving the convenience of fixing the retaining spring to the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the main body of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the sealing gasket in the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the retaining spring in the present utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing hole in the utility model;

[0020] Figure 5 It is a structural diagram of the elastic frame in the utility model.

[0021] In the figure: 1. Valve seat; 12. First air-controlled valve; 13. Second air-controlled valve; 14. Air outlet; 15. Air inlet; 16. Circlip; 17. Filter; 2. Extrusion plate; 3. Fixing hole; 32. Bump; 4. Sound-absorbing cotton; 42. Elastic frame; 5. Buffer pad; 6. Sealing pad. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Specific examples are given below.

[0024] See also Figures 1 to 5As shown, an air control unit structure for a subway coupler described in an embodiment of the present invention includes a valve seat 1, a first air control valve 12 is connected to the middle bolt of the valve seat 1; a second air control valve 13 is connected to the middle bolt of the valve seat 1; a plurality of air outlet holes 14 are opened in the middle of the valve seat 1; a plurality of air inlet holes 15 are opened on the top of the valve seat 1; a retaining spring 16 is provided inside the air inlet hole 15; a filter 17 is provided at the bottom of the retaining spring 16; when working, the first air control valve 12 and the second air control valve 13 are in a communicating relationship, and the retaining spring 16 is clamped to the filter 17 through the clamping groove in the air inlet hole 15. When the coupler is in a connected state, the first air control valve 12 will circulate air to the coupler through a pair of air outlet holes 14 to keep it connected. When the coupler needs to be unhooked, the air source passes through Air is supplied to a pair of air outlet holes 14, so that the second air control valve 13 will transmit an air control signal to the first air control valve 12, so that the first air control valve 12 performs a reversing action, and then the first air control valve 12 will supply air to the coupler through another set of air outlet holes 14, so that it is disconnected. When the air source passes through the air inlet hole 15, it will pass through the filter 17, and the filter 17 will filter and remove dust from the air source. At the same time, the filter 17 is clamped into the air inlet hole 15 through the retaining spring 16, so that the filter 17 can be quickly installed inside the air inlet hole 15. At the same time, the convenience of disassembly and maintenance of the filter 17 can be improved by removing the retaining spring 16; through the cooperation of the retaining spring 16 and the filter 17, the staff can quickly install and disassemble the filter 17 through the retaining spring 16, thereby improving the convenience of the device when using the filter 17.

[0025] See also Figure 3 and Figure 4 As shown, the middle bottom of the clamping spring 16 is fixedly connected to the extrusion plate 2; the surface of the extrusion plate 2 is inclined; the extrusion plate 2 is elastically set; when the filter 17 is clamped into the air inlet hole 15 by the clamping spring 16, the clamping spring 16 will move with the extrusion plate 2. Because the surface of the extrusion plate 2 is inclined, when the clamping spring 16 enters the air inlet hole 15, the extrusion plate 2 will also enter the air inlet hole 15 together, and the extrusion plate 2 will be deformed under the extrusion action and close to the inner wall of the air inlet hole 15 until the extrusion plate 2 enters the slot, and then the extrusion plate 2 will recover under the action of elasticity and squeeze the inner wall of the slot, thereby increasing the contact area between the clamping spring 16 and the slot; by setting the extrusion plate 2, the clamping spring 16 will be squeezed by the extrusion plate 2 after entering the slot inside the air inlet hole 15, thereby increasing the contact area and extrusion effect between the clamping spring 16 and the air inlet hole 15, thereby improving the convenience of fixing the filter 17 to the clamping spring 16.

[0026] See also Figure 4As shown, a pair of fixing holes 3 are opened on the surface of the retaining spring 16; a plurality of protrusions 32 are fixed to the inner side walls of the fixing holes 3; when the filter 17 needs to be disassembled, the staff needs to use tools such as retaining spring pliers to disassemble the retaining spring 16, and the staff can connect the caliper and the retaining spring 16 through the fixing holes 3 and the protrusions 32. The protrusions 32 will increase the contact area between the caliper and the fixing holes 3, increase the friction effect of the caliper on the retaining spring 16 when operating, and improve the convenience of removing the retaining spring 16.

[0027] See also Figure 1 and Figure 5 As shown, sound-absorbing cotton 4 is provided inside the air outlet 14; an elastic frame 42 is symmetrically fixed to the middle part of the sound-absorbing cotton 4; the elastic frame 42 is located between the sound-absorbing cotton 4 and the air outlet 14; when assembling the device, the staff can press a pair of elastic frames 42 to make the pair of elastic frames 42 approach each other, and the sound-absorbing cotton 4 will be deformed under the squeezing action of the elastic frames 42, and then the staff can stuff the deformed sound-absorbing cotton 4 into the air outlet 14. After the sound-absorbing cotton 4 completely enters the air outlet 14, the elastic frame 42 can be loosened, and the sound-absorbing cotton 4 will recover under the elastic force of the elastic frame 42 and be fixed inside the air outlet 14. The sound-absorbing cotton 4 will absorb the sound generated by the flow of air, thereby reducing the noise generated when the device is working.

[0028] See also Figure 5 As shown, a buffer pad 5 is fixed to the middle of the elastic frame 42; the buffer pad 5 is located between the elastic frame 42 and the air outlet 14; when the elastic frame 42 is stuck inside the air outlet 14 under the action of its own elastic force, the buffer pad 5 will move with the elastic frame 42 and contact the inner wall of the air outlet 14. Because the buffer pad 5 is flexibly set, the impact generated when the elastic frame 42 and the inside of the air outlet 14 contact will be absorbed by the buffer pad 5, reducing the damage caused by squeezing between the elastic frame 42 and the inner wall of the air outlet 14.

[0029] See also Figure 1 and Figure 2 As shown, a sealing gasket 6 is symmetrically fixed to the middle of the valve seat 1; the sealing gasket 6 is located on the top of the first air-controlled valve 12 and the second air-controlled valve 13 and is correspondingly arranged; after the first air-controlled valve 12 and the second air-controlled valve 13 are bolted to the valve seat 1, there will still be gaps between the first air-controlled valve 12, the second air-controlled valve 13 and the valve seat 1, and the sealing gasket 6 can be used to seal the gaps between the first air-controlled valve 12, the second air-controlled valve 13 and the valve seat 1 to reduce the contamination effect of dust and impurities in the air.

[0030] Working principle: The first air-controlled valve 12 and the second air-controlled valve 13 are in a connected relationship, and the retaining spring 16 is connected to the filter 17 through the card groove in the air inlet 15. When the coupler is in the connected state, the first air-controlled valve 12 will circulate the air to the coupler through a pair of air outlet holes 14 to keep it connected. When the coupler needs to be unhooked, the air source supplies air through a pair of air outlet holes 14, so that the second air-controlled valve 13 will transmit an air control signal to the first air-controlled valve 12, causing the first air-controlled valve 12 to perform a reversing action. Then the first air-controlled valve 12 will supply air to the coupler through another set of air outlet holes 14 to disconnect it. When the air source passes through the air inlet hole 15, it will pass through the filter 17, and the filter 17 will filter the air source. Dust removal, at the same time, the filter 17 is clamped into the air inlet hole 15 by the clamping spring 16, so that the filter 17 can be quickly installed in the air inlet hole 15, and the convenience of disassembly and maintenance of the filter 17 can also be improved by removing the clamping spring 16; when the filter 17 is clamped into the air inlet hole 15 by the clamping spring 16, the clamping spring 16 will move with the extrusion plate 2. Because the surface of the extrusion plate 2 is inclined, when the clamping spring 16 enters the air inlet hole 15, the extrusion plate 2 will also enter the air inlet hole 15 together. The extrusion plate 2 will be deformed under the extrusion action and close to the inner wall of the air inlet hole 15 until the extrusion plate 2 enters the slot. Then the extrusion plate 2 will recover under the action of elasticity and squeeze the inner wall of the slot, increasing The contact area between the circlip 16 and the slot; when the filter 17 needs to be disassembled, the staff needs to use tools such as circlip pliers to disassemble the circlip 16, and the staff can connect the caliper and the circlip 16 through the fixing hole 3 and the protrusion 32. The protrusion 32 will increase the contact area between the caliper and the fixing hole 3, and increase the friction effect of the caliper on the circlip 16 when the caliper operates; when assembling the device, the staff can press a pair of elastic frames 42 to make the pair of elastic frames 42 close to each other, and the sound-absorbing cotton 4 will be deformed under the squeezing action of the elastic frames 42. Then the staff can stuff the deformed sound-absorbing cotton 4 into the air outlet 14. After the sound-absorbing cotton 4 has completely entered the air outlet 14, the elastic frame 42 can be loosened, and the sound-absorbing cotton 4 will Under the elastic force of the elastic frame 42, it is restored and fixed inside the air outlet 14, and the sound-absorbing cotton 4 will absorb the sound generated by the air flow; when the elastic frame 42 is stuck inside the air outlet 14 under the action of its own elastic force, the buffer pad 5 will move with the elastic frame 42 and contact the inner wall of the air outlet 14. Because the buffer pad 5 is flexibly set, the impact generated when the elastic frame 42 contacts the inside of the air outlet 14 will be absorbed by the buffer pad 5; after the first air-controlled valve 12, the second air-controlled valve 13 and the valve seat 1 are bolted, there will still be a gap between the first air-controlled valve 12, the second air-controlled valve 13 and the valve seat 1, and the gap between the first air-controlled valve 12, the second air-controlled valve 13 and the valve seat 1 can be sealed by the sealing gasket 6.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A pneumatic control unit structure for a subway coupler, comprising a valve seat (1), characterized in that: The middle part of the valve seat (1) is bolted to a first air-controlled valve (12); the middle part of the valve seat (1) is bolted to a second air-controlled valve (13); a plurality of air outlet holes (14) are provided in the middle of the valve seat (1); a plurality of air inlet holes (15) are provided at the top of the valve seat (1); a retaining spring (16) is provided inside the air inlet hole (15); and a filter (17) is provided at the bottom of the retaining spring (16).

2. The air control unit structure for a subway coupler according to claim 1, characterized in that: The bottom of the middle part of the clamping spring (16) is fixedly connected with an extrusion plate (2); the surface of the extrusion plate (2) is inclined; and the extrusion plate (2) is elastically arranged.

3. The air control unit structure for a subway coupler according to claim 2, characterized in that: A pair of fixing holes (3) are provided on the surface of the clamping spring (16); and a plurality of protrusions (32) are fixedly connected to the inner side walls of the fixing holes (3).

4. The air control unit structure for a subway coupler according to claim 3, characterized in that: Sound-absorbing cotton (4) is provided inside the air outlet (14); an elastic frame (42) is symmetrically fixed to the middle of the sound-absorbing cotton (4); and the elastic frame (42) is located between the sound-absorbing cotton (4) and the air outlet (14).

5. The air control unit structure for a subway coupler according to claim 4, characterized in that: A buffer pad (5) is fixedly connected to the middle of the elastic frame (42); the buffer pad (5) is located between the elastic frame (42) and the air outlet (14).

6. The air control unit structure for a subway coupler according to claim 5, characterized in that: A sealing gasket (6) is symmetrically fixed to the middle of the valve seat (1); the sealing gasket (6) is located on the top of the first air-controlled valve (12) and the second air-controlled valve (13) and is correspondingly arranged.

Images