Foot valve with anti-touch structure

Abstract

The utility model discloses a foot valve with an anti-touch structure, and particularly relates to the field of foot valves, which comprises a foot valve body and further comprises a safety anti-touch device arranged at the lower end of the foot valve body and capable of preventing operation caused by touch. A hydraulic output device capable of effectively outputting liquid in the hydraulic pipe is arranged at the lower end of the foot valve body; a transmission plate is arranged at the lower end of the foot valve body and fixedly arranged at the lower end of the safety anti-touch device. Limiting grooves are formed in the two sides of the transmission plate, and the transmission plate and the limiting grooves movably penetrate through movable connecting rods. A supporting table is fixedly arranged at the lower end of the limiting groove, an output box is fixedly arranged at the lower end of the supporting table, and a hydraulic output pipe is arranged on the inner side of the output box. Due to the arrangement of the safety anti-touch device, safety anti-touch protection of the foot valve is facilitated, the situation that an excavator runs due to unintentional touch is avoided, and the protection effect is more effectively achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of foot valves, and more specifically to a foot valve provided with an anti-touch structure. Background Art

[0002] An excavator, also known as an excavating machine or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and loads them into transport vehicles or unloads them to a stockpile. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. From the development of construction machinery in recent years, the development of excavators has been relatively rapid. Excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of an excavator are: operating weight (mass), engine power and bucket capacity. Therefore, a foot valve is needed to control the power to drive the excavator bucket and engine.

[0003] Existing foot valves generally use baffles to prevent touch to avoid unintentional touch that causes the excavator to run, and the effect can still be improved. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a foot valve provided with an anti-touch structure. The technical problem to be solved by the present invention is: to protect the safe use of the foot valve through a more effective anti-touch method and to more effectively realize the output of the foot valve.

[0005] To achieve the above object, the utility model provides the following technical solution: a foot valve with an anti-touch structure, comprising a foot valve body, and also comprising:

[0006] The lower end of the pedal valve body is provided with a safety anti-touch device that can prevent the operation caused by touching, which is used to protect the pedal valve from touching, avoid unintentional touching that causes the excavator to run, and achieve a more effective protection effect;

[0007] The lower end of the pedal valve body is provided with a hydraulic output device that can effectively output the liquid in the hydraulic pipe, so as to realize the flow of the liquid in the hydraulic pipe in a more sealed manner and avoid the problem of liquid leakage;

[0008] A transmission plate is provided at the lower end of the foot valve body, and the transmission plate is fixedly arranged at the lower end of the safety anti-touch device;

[0009] Limiting grooves are arranged on both sides of the transmission plate, and the transmission plate and the limiting grooves are movably penetrated by a movable connecting rod;

[0010] A support platform is fixedly provided at the lower end of the limiting groove, an output box is fixedly provided at the lower end of the support platform, and a hydraulic output pipe is provided inside the output box.

[0011] In a preferred embodiment, the safety anti-touch device includes a connecting block, which is fixedly arranged at the lower end of the foot valve body, and connecting rods are fixedly arranged on both sides of the connecting block. The connecting rods movably pass through the middle end of the transmission frame, and the lower end of the transmission frame is fixedly connected to the upper end of the transmission plate.

[0012] In a preferred embodiment, sliding rods are fixedly provided on both sides of the connecting block, and the sliding rods are located in the grooves at the middle end of the transmission frame.

[0013] In a preferred embodiment, a return spring is movably provided at the lower end of the pedal valve body, a limit block is provided at the lower end of the return spring, and the limit block is fixedly arranged at the upper end of the transmission plate.

[0014] In a preferred embodiment, the hydraulic output device comprises an arc-shaped connecting rod, which is movably arranged in a groove on one side of the transmission plate, and a pull rod is movably provided at the lower end of the arc-shaped connecting rod.

[0015] In a preferred embodiment, the pull rod movably penetrates the groove inside the output box, a damping plug is fixedly provided on the outer surface of the pull rod, and a blocking rod is fixedly provided on the lower end of the pull rod.

[0016] In a preferred embodiment, the choke rod movably penetrates the inner groove of the output box and is movably connected to the inner side of the hydraulic output pipe. A limiting ring is fixedly provided on the outer surface of the choke rod, and a spring is movably provided on the upper end of the limiting ring.

[0017] Technical effects and advantages of the utility model:

[0018] 1. The utility model is provided with a safety anti-touch device, which is conducive to the safety anti-touch protection of the foot valve, avoiding unintentional touch causing the excavator to run, and more effectively achieving the protection effect. A connecting block is fixedly provided at the lower end of the foot valve body, so the connecting block is driven to move by stepping on the foot valve, and connecting rods are fixedly provided on both sides of the connecting block. The connecting rods are movably connected to the middle end of the transmission frame. Therefore, when the connecting block moves, the moving direction of the connecting block is limited by the movably connected connecting rods. Sliding rods are fixedly provided on both sides of the connecting block. The sliding rods are located in the grooves of the transmission frame. Therefore, when the connecting block moves, the sliding rods are When the block rotates, the sliding rod is driven to move, so that the sliding rod is limited by the groove of the transmission frame, a return spring is movably provided at the lower end of the foot valve body, and a limit block is provided at the lower end of the return spring, so the position of the return spring is limited by the limit block, when the foot valve is accidentally touched, the return spring is used to buffer the force, and the sliding rod slides in the groove of the transmission frame, so that the force will not be preferentially transmitted to output the device, and when running, the foot valve body is stepped down, so that the sliding rod moves to the lowermost end of the groove of the transmission frame, so that the transmission frame can be driven to rotate;

[0019] 2. The utility model is provided with a hydraulic output device, which is conducive to more sealed flow of liquid in the hydraulic pipe and avoids the problem of leakage. An arc-shaped connecting rod is movably provided in a groove on one side of the transmission plate. Therefore, when the transmission plate rotates, the arc-shaped connecting rod is pulled. A pull rod is movably provided at the lower end of the arc-shaped connecting rod. Therefore, force is transmitted through the shape of the arc-shaped connecting rod, and the force of the rotation of the transmission plate is transmitted to the force of pulling the pull rod upward. A damping plug is fixedly provided on the outer surface of the pull rod. Because the pull rod and the damping plug movably penetrate the groove on the inner side of the output box, a damping chamber is formed to avoid the problem of internal liquid overflow during output. A flow blocking rod is fixedly provided at the lower end of the pull rod. Therefore, the flow blocking rod is pulled to flow the internal liquid. A limiting ring is fixedly provided on the outer surface of the flow blocking rod. A spring is movably provided at the upper end of the limiting ring. Therefore, the limiting ring is reset by the spring, thereby applying a downward force to pull the arc-shaped connecting rod, and the flow of liquid in the hydraulic pipe is more sealed as a whole, thereby avoiding the problem of liquid overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the safety anti-touch device of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the hydraulic output device of the utility model.

[0024] The accompanying drawings are marked as follows: 1. foot valve body; 2. safety anti-touch device; 3. hydraulic output device; 4. transmission plate; 5. limit groove; 6. movable connecting rod; 7. support platform; 8. output box; 9. hydraulic output pipe; 21. connecting block; 22. transmission frame; 23. connecting rod; 24. sliding rod; 25. reset spring; 26. limit block; 31. arc-shaped connecting rod; 32. pull rod; 33. damping plug; 34. flow control rod; 35. spring; 36. limit ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field of foot valves without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a foot valve with an anti-touch structure, comprising a foot valve body 1, and further comprising:

[0027] The lower end of the pedal valve body 1 is provided with a safety anti-touch device 2 that can prevent the operation caused by touching, which is used to protect the pedal valve from touching, avoid unintentional touching that causes the excavator to run, and achieve a more effective protection effect;

[0028] The lower end of the pedal valve body 1 is provided with a hydraulic output device 3 which can effectively output the liquid in the hydraulic pipe, so as to realize the flow of the liquid in the hydraulic pipe more tightly and avoid the problem of liquid leakage;

[0029] A transmission plate 4 is provided at the lower end of the pedal valve body 1, and the transmission plate 4 is fixedly arranged at the lower end of the safety anti-touch device 2;

[0030] Limiting grooves 5 are provided on both sides of the transmission plate 4, and the transmission plate 4 and the limiting grooves 5 are movably connected through a movable connecting rod 6;

[0031] A support platform 7 is fixedly provided at the lower end of the limiting groove 5 , an output box 8 is fixedly provided at the lower end of the support platform 7 , and a hydraulic output pipe 9 is provided inside the output box 8 .

[0032] It is helpful to protect the foot valve from touch and avoid accidental touch that may cause the excavator to run, so as to achieve more effective protection effect. Figure 3As shown, the safety anti-touch device 2 includes a connecting block 21, which is fixedly arranged at the lower end of the foot valve body 1, and connecting rods 23 are fixedly arranged on both sides of the connecting block 21. The connecting rod 23 movably runs through the middle end of the transmission frame 22, and the lower end of the transmission frame 22 is fixedly connected to the upper end of the transmission plate 4. Sliding rods 24 are fixedly arranged on both sides of the connecting block 21, and the sliding rods 24 are located in the groove at the middle end of the transmission frame 22. A return spring 25 is movably arranged at the lower end of the foot valve body 1, and a limit block 26 is arranged at the lower end of the return spring 25. The limit block 26 is fixedly arranged at the upper end of the transmission plate 4. The connecting block 21 is fixedly arranged at the lower end of the foot valve body 1, so that the connecting block 21 is driven to move by stepping on the foot valve, and connecting rods 23 are fixedly arranged on both sides of the connecting block 21. The connecting rods 23 movably run through the middle end of the transmission frame 22, so when the connecting block 21 moves, the movably connected connecting rods 23 is used to limit the moving direction of the connecting block 21. Sliding rods 24 are fixedly provided on both sides of the connecting block 21. The sliding rods 24 are located in the grooves of the transmission frame 22. Therefore, when the connecting block 21 is rotated, the sliding rods 24 are driven to move, so that the sliding rods 24 are limited by the grooves of the transmission frame 22. A return spring 25 is movably provided at the lower end of the foot valve body 1, and a limit block 26 is provided at the lower end of the return spring 25. Therefore, the position of the return spring 25 is limited by the limit block 26. When the foot valve is accidentally touched, the return spring 25 is used to buffer the force, and the sliding rod 24 slides in the groove of the transmission frame 22. Therefore, the force will not be preferentially transmitted to output the device. When running, the foot valve body 1 is stepped down, so that the sliding rod 24 moves to the lowermost end of the groove of the transmission frame 22, thereby driving the transmission frame 22 to rotate.

[0033] It is conducive to more sealed flow of liquid in the hydraulic pipe, avoiding leakage problems, such as Figure 4As shown, the hydraulic output device 3 includes an arc-shaped connecting rod 31, which is movably arranged in a groove on one side of the transmission plate 4, a pull rod 32 is movably arranged at the lower end of the arc-shaped connecting rod 31, and the pull rod 32 is movably penetrated through the inner groove of the output box 8, a damping plug 33 is fixedly arranged on the outer surface of the pull rod 32, a choke rod 34 is fixedly arranged at the lower end of the pull rod 32, the choke rod 34 is movably penetrated through the inner groove of the output box 8 and is movably connected to the inner side of the hydraulic output pipe 9, a limiting ring 36 is fixedly arranged on the outer surface of the choke rod 34, and a spring 35 is movably arranged at the upper end of the limiting ring 36, and the arc-shaped connecting rod 31 is movably arranged in the groove on one side of the transmission plate 4, so when the transmission plate 4 rotates, the arc-shaped connecting rod 31 is pulled, and a pull rod 32 is movably arranged at the lower end of the arc-shaped connecting rod 31, so through the arc-shaped connecting rod 31 The shape of the pull rod 32 is used to transmit force, and the force of the rotation of the transmission plate 4 is transmitted to the force of pulling the pull rod 32 upward. A damping plug 33 is fixedly provided on the outer surface of the pull rod 32. Because the pull rod 32 and the damping plug 33 are movable through the inner groove of the output box 8, a damping chamber is formed to avoid the problem of internal liquid overflow during output. A choke rod 34 is fixedly provided at the lower end of the pull rod 32. Therefore, the choke rod 34 is pulled to flow the internal liquid. A limiting ring 36 is fixedly provided on the outer surface of the choke rod 34. A spring 35 is movably provided at the upper end of the limiting ring 36. Therefore, the limiting ring 36 is reset by the spring 35, thereby applying a downward force to pull the arc-shaped connecting rod 31, and the flow of liquid in the hydraulic pipe is more sealed as a whole, thereby avoiding the problem of liquid overflow.

[0034] The specific implementation method is as follows: a safety anti-touch device 2 is provided, a connecting block 21 is fixedly provided at the lower end of the foot valve body 1, so that the connecting block 21 is driven to move by stepping on the foot valve, connecting rods 23 are fixedly provided on both sides of the connecting block 21, and the connecting rods 23 are movably connected to the middle end of the transmission frame 22, so when the connecting block 21 moves, the moving direction of the connecting block 21 is limited by the movably connected connecting rods 23, and sliding rods 24 are fixedly provided on both sides of the connecting block 21, and the sliding rods 24 are located in the groove of the transmission frame 22, so when the connecting block 21 rotates , driving the sliding rod 24 to move, so that the sliding rod 24 is limited by the groove of the transmission frame 22, and a return spring 25 is movably provided at the lower end of the foot valve body 1, and a limit block 26 is provided at the lower end of the return spring 25, so the position of the return spring 25 is limited by the limit block 26. When the foot valve is accidentally touched, the return spring 25 is used to buffer the force, and the sliding rod 24 slides in the groove of the transmission frame 22, so that the force will not be preferentially transmitted to output the device. When running, the foot valve body 1 is stepped down, so that the sliding rod 24 moves The transmission frame 22 is moved to the bottom of the groove of the transmission frame 22, so that the transmission frame 22 can be driven to rotate. A hydraulic output device 3 is provided. An arc-shaped connecting rod 31 is movably provided in the groove on one side of the transmission plate 4. Therefore, when the transmission plate 4 rotates, the arc-shaped connecting rod 31 is pulled. A pull rod 32 is movably provided at the lower end of the arc-shaped connecting rod 31. Therefore, the force is transmitted through the shape of the arc-shaped connecting rod 31. The force of the rotation of the transmission plate 4 is transmitted to the upward pulling force of the pull rod 32. A damping plug 33 is fixed on the outer surface of the pull rod 32. Because the pull rod 32 and the damping plug 33 It movably runs through the groove on the inner side of the output box 8, thereby forming a damping chamber to avoid the problem of internal liquid overflowing during output. A blocking rod 34 is fixedly provided at the lower end of the pull rod 32, so the blocking rod 34 is pulled to make the internal liquid flow, and a limiting ring 36 is fixedly provided on the outer surface of the blocking rod 34, and a spring 35 is movably provided at the upper end of the limiting ring 36, so the limiting ring 36 is reset by the spring 35, thereby applying a downward force to pull the arc-shaped connecting rod 31, so that the flow of liquid in the hydraulic pipe is more sealed as a whole, thereby avoiding the problem of liquid overflow.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foot valve with an anti-touch structure, comprising a foot valve body (1), characterized in that: Also includes: The lower end of the pedal valve body (1) is provided with a safety anti-touch device (2) capable of preventing operation caused by touching, which is used to provide safety anti-touch protection for the pedal valve, thereby preventing the excavator from operating due to unintentional touching, and achieving a more effective protection effect; The lower end of the pedal valve body (1) is provided with a hydraulic output device (3) that can effectively output the liquid in the hydraulic pipe, so as to realize the flow of the liquid in the hydraulic pipe in a more sealed manner and avoid the problem of liquid leakage; A transmission plate (4) is provided at the lower end of the pedal valve body (1), and the transmission plate (4) is fixedly arranged at the lower end of the safety anti-touch device (2); Limiting grooves (5) are provided on both sides of the transmission plate (4), and the transmission plate (4) and the limiting grooves (5) are movably connected and penetrated by a movable connecting rod (6); A support platform (7) is fixedly provided at the lower end of the limiting groove (5), an output box (8) is fixedly provided at the lower end of the support platform (7), and a hydraulic output pipe (9) is provided inside the output box (8).

2. A foot valve with an anti-touch structure according to claim 1, characterized in that: The safety anti-touch device (2) comprises a connecting block (21), the connecting block (21) is fixedly arranged at the lower end of the foot valve body (1), connecting rods (23) are fixedly arranged on both sides of the connecting block (21), the connecting rods (23) movably penetrate the middle end of the transmission frame (22), and the lower end of the transmission frame (22) is fixedly connected to the upper end of the transmission plate (4).

3. A foot valve with an anti-touch structure according to claim 2, characterized in that: Sliding rods (24) are fixedly provided on both sides of the connecting block (21), and the sliding rods (24) are located in the groove at the middle end of the transmission frame (22).

4. A foot valve with an anti-touch structure according to claim 1, characterized in that: A return spring (25) is movably provided at the lower end of the pedal valve body (1), a limit block (26) is provided at the lower end of the return spring (25), and the limit block (26) is fixedly arranged at the upper end of the transmission plate (4).

5. A foot valve with an anti-touch structure according to claim 1, characterized in that: The hydraulic output device (3) comprises an arc-shaped connecting rod (31), the arc-shaped connecting rod (31) is movably arranged in a groove on one side of the transmission plate (4), and a pull rod (32) is movably arranged at the lower end of the arc-shaped connecting rod (31).

6. A foot valve with an anti-touch structure according to claim 5, characterized in that: The pull rod (32) movably penetrates the inner groove of the output box (8), a damping plug (33) is fixedly provided on the outer surface of the pull rod (32), and a flow blocking rod (34) is fixedly provided on the lower end of the pull rod (32).

7. A foot valve with an anti-touch structure according to claim 6, characterized in that: The blocking rod (34) movably penetrates the inner groove of the output box (8) and is movably connected to the inner side of the hydraulic output pipe (9). A limiting ring (36) is fixedly provided on the outer surface of the blocking rod (34), and a spring (35) is movably provided on the upper end of the limiting ring (36).

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