Pneumatic foot switch
By integrating the cylinder and base into a single unit and incorporating a sealing ring and pressure relief channel design, the problem of poor integration and stability in traditional pneumatic foot switches is solved, achieving higher overall integration and stability, reducing production costs, and improving sealing and safety.
Patent Information
- Application Number
- CN202520086213.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional pneumatic foot switches have separate cylinders and bases, resulting in poor integration and stability, as well as inconvenient assembly.
The cylinder and base are integrally molded, and the cylinder body is located at the front end of the base. The control valve is fixed to the base through the mounting port. The integrated design combines a sealing ring and a pressure relief channel to improve sealing and stability.
It achieves overall integration and improved stability of pneumatic foot switches, making assembly more convenient, reducing production costs, and providing good sealing and pressure relief functions to protect the equipment's gas safety.
Smart Images
Figure CN223743485U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pneumatic equipment field especially relates to a pneumatic foot switch. BACKGROUND
[0002] Pneumatic foot switch is a kind of switch equipment by foot pedal operation to control cylinder or other pneumatic equipment.The structure of traditional pneumatic foot switch includes base, pedal set on the upper end of base and cylinder and foot pedal spring set between base and pedal, cylinder includes cylinder body, control valve set in cylinder body, cylinder body is usually provided with one air inlet and two air outlets.Working principle: by foot pedal operation, the piston movement of cylinder is controlled.The existing defects are: cylinder and base are set separately, and there are the defects of poor integration and stability. CONTENT OF UTILITY MODEL
[0003] The utility model solves the technical problem to provide a kind of integrated pneumatic foot switch.
[0004] To solve the above problem, the utility model adopts the technical scheme including: base, pedal set on the upper end of the base, cylinder set between the front of the base and the pedal and foot pedal spring set between the rear of the base and the pedal, the cylinder includes cylinder body, control valve set in the cylinder body, the cylinder body is provided with air inlet and air outlet, characterized by: the cylinder body is integrally formed on the front end of the base, and bottom is provided with the installation port for the control valve, the bottom of the base is provided with the cover plate sealed in the installation port.
[0005] The pneumatic foot switch is characterized in that: the control valve includes an upper foot pedal valve core sleeve, a lower foot pedal valve core sleeve set at the lower end of the upper foot pedal valve core sleeve, a foot pedal valve core set between the upper foot pedal valve core sleeve and the lower foot pedal valve core sleeve, and a foot pedal valve core push rod set above the foot pedal valve core, a first foot pedal valve core spring is set between the foot pedal valve core and the lower foot pedal valve core sleeve, a second foot pedal valve core spring is set between the foot pedal valve core push rod top and the lower foot pedal valve core sleeve, at least one first sealing ring is set on the upper end of the upper foot pedal valve core sleeve and sealingly cooperates with the cylinder body, at least one second sealing ring is set on the lower end of the lower foot pedal valve core sleeve and sealingly cooperates with the cylinder body, and a sealing gasket is set on the top of the foot pedal valve core and sealingly cooperates with the upper foot pedal valve core sleeve, and a third sealing ring is set on the lower end of the foot pedal valve core and sealingly cooperates with the lower foot pedal valve core sleeve.
[0006] The pneumatic foot switch, characterized in that: the lower foot pedal valve core sleeve lower end is provided with an outer annular air inlet channel communicated with the air inlet, the inner cavity outer side is provided with a first inner annular air inlet channel communicated with the outer annular air inlet channel, and the upper foot pedal valve core sleeve and the foot pedal valve core are formed with a second inner annular air inlet channel communicated with the first inner annular air inlet channel; the lower foot pedal valve core sleeve inner cavity center is provided with an inner pressure relief channel, and is formed with an outer pressure relief channel communicated with the inner pressure relief channel between the cylinder body, and the base side is provided with a pressure relief port communicated with the outer pressure relief channel.
[0007] The pneumatic foot switch, characterized in that: the pressure relief port is internally provided with a silencer, and the silencer comprises a copper sheet and a needle type exhaust hole arranged on the copper sheet.
[0008] The pneumatic foot switch, characterized in that: the lower foot pedal valve core sleeve upper end is provided with a fourth sealing ring corresponding to both sides of the outer pressure relief channel.
[0009] The pneumatic foot switch, characterized in that: the base side is provided with a limiting buckle, and the pedal two sides are provided with limiting buckle grooves matched with the limiting buckle.
[0010] The pneumatic foot switch, characterized in that: the base front end is provided with a positioning flange matched with the pedal.
[0011] The pneumatic foot switch, characterized in that: the base bottom is provided with a foot pad.
[0012] The pneumatic foot switch, characterized in that: the pedal two ends are connected to the base upper end through a pin, and the pin front end is provided with circumferentially arranged elastic buckles.
[0013] The pneumatic foot switch, characterized in that: the foot pedal valve core push rod upper end is provided with a fifth sealing ring in sealing cooperation with the cylinder body.
[0014] The pneumatic foot switch has the advantages that: 1, the cylinder and the base are integrally formed, so that the switch has better overall integration and stability, is convenient to assemble, and has lower production cost; 2, the control valve is convenient to disassemble and assemble, and has good sealing performance; 3, has a pressure relief function, and can effectively protect the equipment gas safety.
[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure schematic diagram of the utility model pneumatic foot switch;
[0017] Figure 2 It is the utility model pneumatic foot switch's sectional view;
[0018] Figure 3 is the structural schematic view of the base of the utility model;
[0019] Figure 4 is the sectional view of the base of the utility model;
[0020] Figure 5 is the sectional view of the lower pedal valve core sleeve of the utility model;
[0021] Figure 6 is the structural schematic view of the pin of the utility model;
[0022] Figure 7 is the structural schematic view of the muffler of the utility model;
[0023] Figure 8 is the air intake and pressure relief schematic view of the lower pedal valve core sleeve of the utility model. DETAILED DESCRIPTION
[0024] As Figures 1 to 8 shown, the pneumatic foot switch of the utility model, including base 1, be equipped with the pedal 2 of the base 1 upper end, be equipped with the cylinder 3 of the base 1 and pedal 2 front between and be equipped with the foot pedal spring 4 of the base 1 and pedal 2 rear between. The cylinder 3 includes cylinder body 5, be equipped with the control valve 6 in the cylinder body 5, the cylinder body 5 is equipped with air inlet 7 and air outlet 8 on. Through the piston movement of the control valve 6, control the on / off of gas between the air inlet 7 and air outlet 8. The cylinder body 5 is integrally formed in the base 1 front end, and the cylinder body 5 bottom is equipped with the installation mouth 9 for the control valve 6 is loaded, the base 1 bottom is equipped with the cover plate 10 that is capped in the installation mouth 9. When the control valve 6 is loaded in the cylinder body 5, through the cover plate 10 is capped and fixed, the cover plate 10 and the base 1 between through screw fixed.
[0025] Preferably, the control valve 6 comprises an upper foot pedal valve core sleeve 11, a lower foot pedal valve core sleeve 12 arranged at the lower end of the upper foot pedal valve core sleeve 11, a foot pedal valve core 13 arranged between the upper foot pedal valve core sleeve 11 and the lower foot pedal valve core sleeve 12, and a foot pedal valve core push rod 14 arranged above the foot pedal valve core 13. A first foot pedal valve core spring 15 is arranged between the foot pedal valve core 13 and the lower foot pedal valve core sleeve 12, so that the foot pedal valve core 13 can move in a piston manner under the control of the foot pedal valve core push rod 14. The top of the foot pedal valve core push rod 14 abuts against the pedal 2, and a second foot pedal valve core spring 16 is arranged between the foot pedal valve core push rod 14 and the lower foot pedal valve core sleeve 12, which is used for resetting after the foot pedal valve core push rod 14 is pressed. A first sealing ring 17 is arranged at the upper end of the upper foot pedal valve core sleeve 11 and sealingly cooperates with the cylinder body 5. A second sealing ring 18 is arranged at the lower end of the lower foot pedal valve core sleeve 12 and sealingly cooperates with the cylinder body 5. A sealing gasket 19 is arranged at the top of the foot pedal valve core 13 and sealingly cooperates with the upper foot pedal valve core sleeve 11. A third sealing ring 20 is arranged at the lower end of the foot pedal valve core 13 and sealingly cooperates with the lower foot pedal valve core sleeve 12. An outer annular intake passage 21 is arranged at the lower end of the lower foot pedal valve core sleeve 12 and communicates with the air inlet 7. A first inner annular intake passage 22 is arranged outside the inner cavity of the lower foot pedal valve core sleeve 12 and communicates with the outer annular intake passage 21. A second inner annular intake passage 23 is formed between the upper foot pedal valve core sleeve 11 and the foot pedal valve core 13 and communicates with the first inner annular intake passage 22. An inner pressure relief passage 24 is arranged in the center of the inner cavity of the lower foot pedal valve core sleeve 12 and forms an outer pressure relief passage 25 with the cylinder body 5, which communicates with the inner pressure relief passage 24. A pressure relief port 26 is arranged on the side of the base 1 and communicates with the outer pressure relief passage 25. In the reset state, the gas path between the air inlet 7 and the air outlet 8 is in a closed state. When the pedal 2 is stepped down, the foot pedal valve core push rod 14 drives the foot pedal valve core 13 to move downward, so that the sealing gasket 19 is separated from the upper foot pedal valve core sleeve 11, and the air inlet 7, the outer annular intake passage 21, the second inner annular intake passage 23, and the air outlet 8 form a passage. When the gas pressure in the cylinder body 5 is too high, the gas is discharged from the inner pressure relief passage 24, the outer pressure relief passage 25, and the pressure relief port 26 to play a pressure relief role.
[0026] Preferably, the pressure relief port 26 is provided with a silencer 27, which comprises a copper sheet 271 and a needle-shaped exhaust hole 272 arranged on the copper sheet 271, to play a silencing role on the discharged gas.
[0027] Preferably, fourth sealing rings 28 are arranged at the upper end of the lower foot pedal valve core sleeve 12 corresponding to both sides of the outer pressure relief passage 25, to further improve the sealing effect between the lower foot pedal valve core sleeve 12 and the cylinder body 5.
[0028] Preferably, the base 1 is provided with limiting buckles 29 on both sides, and the pedal 2 is provided with limiting clamping grooves 30 matched with the limiting buckles 29. Due to the foot pedal spring 4 arranged between the rear of the base 1 and the pedal 2, the limiting buckles 29 and the limiting clamping grooves 30 are arranged to limit the reset of the pedal 2.
[0029] Preferably, the front end of the base 1 is provided with a positioning flange 31 matched with the pedal 2. The positioning flange 31 is arranged to double-limit the reset of the pedal 2, thereby improving the stability.
[0030] Preferably, the bottom of the base 1 is provided with a foot pad 32. The foot pad 32 is usually made of rubber to prevent slipping.
[0031] Preferably, the pedal 2 is connected to the upper end of the base 1 through a pin 33 at both ends, and the pin 33 is provided with a plurality of circumferentially arranged elastic buckles 34 at the front end. The elastic buckles 34 are connected with the clamping grooves in the pedal 2 to facilitate assembly.
[0032] Preferably, the foot pedal valve core push rod 14 is provided with a fifth sealing ring 35 at the upper end matched with the cylinder body 5. The fifth sealing ring 35 is arranged to further improve the sealing performance of the cylinder.
[0033] The above description is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application are included in the protection scope of the present application.
Claims
1. A pneumatic foot switch, comprising a base (1), a pedal (2) arranged at the upper end of the base (1), a pneumatic cylinder (3) arranged between the front of the base (1) and the pedal (2), and a pedal spring (4) arranged between the rear of the base (1) and the pedal (2), the pneumatic cylinder (3) comprising a cylinder body (5) and a control valve (6) arranged in the cylinder body (5), the cylinder body (5) being provided with an air inlet (7) and an air outlet (8), characterized in that: The cylinder (5) is integrally formed at the front end of the base (1), and the bottom is provided with a mounting port (9) for accommodating the control valve (6), and the bottom of the base (1) is provided with a cover plate (10) covering the mounting port (9).
2. The pneumatic footswitch of claim 1, wherein: The control valve (6) comprises an upper foot pedal valve core sleeve (11), a lower foot pedal valve core sleeve (12) arranged at the lower end of the upper foot pedal valve core sleeve (11), a foot pedal valve core (13) arranged between the upper foot pedal valve core sleeve (11) and the lower foot pedal valve core sleeve (12), and a foot pedal valve core push rod (14) arranged above the foot pedal valve core (13). The foot pedal valve core (13) and the lower foot pedal valve core sleeve (12) are provided with a first foot pedal valve core spring (15). The top of the foot pedal valve core push rod (14) abuts against the pedal (2), and the second foot pedal valve core spring (16) is arranged between the foot pedal valve core push rod (14) and the lower foot pedal valve core sleeve (12). The upper end of the upper foot pedal valve core sleeve (11) is provided with at least one first sealing ring (17) in sealing cooperation with the cylinder (5). The lower end of the lower foot pedal valve core sleeve (12) is provided with at least one second sealing ring (18) in sealing cooperation with the cylinder (5). The top of the foot pedal valve core (13) is provided with a sealing gasket (19) in sealing cooperation with the upper foot pedal valve core sleeve (11), and the lower end is provided with a third sealing ring (20) in sealing cooperation with the lower foot pedal valve core sleeve (12).
3. The pneumatic footswitch of claim 2, wherein: The lower end of the lower foot pedal valve core sleeve (12) is provided with an outer annular air inlet channel (21) in communication with the air inlet (7), and the outer side of the inner cavity is provided with a first inner annular air inlet channel (22) in communication with the outer annular air inlet channel (21). The upper foot pedal valve core sleeve (11) and the foot pedal valve core (13) form a second inner annular air inlet channel (23) in communication with the first inner annular air inlet channel (22). The center of the inner cavity of the lower foot pedal valve core sleeve (12) is provided with an inner pressure relief channel (24), and the cylinder (5) forms an outer pressure relief channel (25) in communication with the inner pressure relief channel (24). The side of the base (1) is provided with a pressure relief port (26) in communication with the outer pressure relief channel (25).
4. The pneumatic footswitch of claim 3, wherein: The pressure relief port (26) is provided with a silencer (27), and the silencer (27) comprises a copper sheet (271) and a needle type exhaust hole (272) arranged on the copper sheet (271).
5. The pneumatic footswitch of claim 3, wherein: The upper end of the lower foot pedal valve core sleeve (12) is provided with a fourth sealing ring (28) corresponding to both sides of the outer pressure relief channel (25).
6. The pneumatic footswitch of claim 1, wherein: The base (1) is provided with a limiting buckle (29) on both sides, and the pedal (2) is provided with a limiting clamping groove (30) matched with the limiting buckle (29).
7. The pneumatic footswitch of claim 1, wherein: The front end of the base (1) is provided with a positioning flange (31) matched with the pedal (2).
8. The pneumatic footswitch of claim 1, wherein: The bottom of the base (1) is provided with a foot pad (32).
9. The pneumatic footswitch of claim 1, wherein: The pedal (2) is connected to the upper end of the base (1) through a pin (33) at both ends, and the front end of the pin (33) is provided with a circumferentially arranged elastic buckle (34).
10. The pneumatic footswitch of claim 2, wherein: The upper end of the foot pedal valve core push rod (14) is provided with a fifth sealing ring (35) in sealing cooperation with the cylinder (5).