A foot valve control device for high pressure water jet cleaning

Abstract

The utility model discloses a kind of foot valve control devices for high-pressure water jet cleaning, belong to foot valve field, including the bottom plate integrated with mounting groove and quick replacement interface, the bottom plate top one end is provided with foot valve block, the inside of the foot valve block is provided with the valve core that can realize mechanical stop and prevent misoperation, one end of the foot valve block is hinged with the foot pedal assembly matched with valve core, high-pressure water pipe is connected with it quickly by quick plug-connection structure on foot valve block, the bottom plate is also provided with protective cover, the quick plug-connection structure includes the valve core connector of being connected with valve core and being threaded on foot valve block and being communicated.The foot valve control device for high-pressure water jet cleaning does not need to rely on complex tool, can realize the quick docking and separation of high-pressure pipeline and valve block, greatly shorten the time of field installation, maintenance or replacement pipeline, especially adapt to the high requirement of equipment operation and maintenance efficiency under complex operation scene such as construction site, wharf.

Description

Technical Field

[0001] This utility model relates to the field of foot valve technology, and in particular to a foot valve control device for high-pressure water jet cleaning. Background Technology

[0002] In high-pressure water jet cleaning operations, the control of the high-pressure water flow is the core link to ensure operational efficiency and safety. Currently, the industry mostly uses electronic or manual methods to achieve this control function.

[0003] However, under high-pressure environments (such as 1500 bar), existing control devices have the following problems: On the one hand, traditional foot-operated control structures often use complex mechanical transmission components, and the connection between components is crude. Due to factors such as mud and sand accumulation and component wear, action jamming is likely to occur, resulting in a significant delay in valve opening and closing response after the operator steps on the pedal, affecting the efficiency of cleaning operations. On the other hand, the connection between traditional foot valves and high-pressure pipelines often relies on non-modular fixed structures or complex threaded connections. Disassembly and assembly require the entire device to be disassembled, or the use of special tools to repeatedly tighten threaded components. The operation steps are cumbersome, resulting in long time consumption for on-site installation, maintenance, or pipeline replacement. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing foot valve control devices having complex structures, significant delays in opening and closing responses that affect the efficiency of cleaning operations, and inconvenience in disassembling and assembling high-pressure pipelines and control devices, and to propose a foot valve control device for high-pressure water jet cleaning.

[0005] To achieve the above objectives, this utility model employs the following technology: a foot valve control device for high-pressure water jet cleaning, comprising a base plate integrating an installation groove and a quick-change interface, a foot valve block being provided at one end of the top of the base plate, a valve core being provided inside the foot valve block to achieve mechanical stop and prevent misoperation, a foot pedal assembly cooperating with the valve core being hinged to one end of the foot valve block, and a high-pressure water pipe being quickly connected to it through a quick-connect structure on the foot valve block, and a protective cover being provided on the base plate.

[0006] As a further description of the above technical solution: the quick-connect connection structure includes a valve core connector that is threaded onto the foot valve block and communicates with the valve core, and the end of the valve core connector away from the valve core is threaded with an NPT connector that can be connected to a high-pressure water pipe.

[0007] As a further description of the above technical solution: the quick-connect connection structure also includes a threaded hole on the foot valve block, which is connected to the NPT connector through the valve core during pedaling.

[0008] As a further description of the above technical solution: the number of threaded holes is at least two.

[0009] As a further description of the above technical solution: the foot pedal assembly includes a foot pedal rod hinged to the foot valve block, and a foot pedal is provided at the end of the foot pedal rod away from the foot valve block.

[0010] As a further description of the above technical solution: the foot pedal is provided with a number of sand discharge grooves arranged at equal intervals, and the sand discharge grooves are provided with sand discharge holes.

[0011] As a further description of the above technical solution: the valve core includes a valve core cylinder fixed on the foot valve block, a valve core rod that can move along its axial direction is sleeved on the valve core cylinder, a top head that cooperates with the foot pedal is provided at the end of the valve core rod away from the valve core cylinder, and a return spring is provided on the valve core rod at a position between the top head and the valve core cylinder.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] The high-pressure pipeline is connected to the foot valve control device through a quick-connect connection structure. The quick-connect connection structure does not require complicated tools or cumbersome threading operations, and can realize the quick connection and separation of the high-pressure pipeline and the valve block, which greatly shortens the time for on-site installation, maintenance or replacement of pipelines. Combined with the sand discharge groove design on the foot pedal, the foot valve control device is suitable for the high requirements of complex operation scenarios such as construction sites and docks.

[0014] The mechanical stop design of the valve core allows the valve core to quickly return to the closed state by elastic force after the operator releases the pedal, automatically cutting off the high-pressure water flow channel and preventing accidental opening of the valve core in non-operational states, thus improving the safety of the device. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0016] Figure 2 A cross-sectional view according to an embodiment of the present invention is shown;

[0017] Figure 3 A partial structural schematic diagram according to an embodiment of the present invention is shown.

[0018] Legend:

[0019] 1. Base plate; 2. Foot valve block; 3. Valve core; 4. Foot pedal; 5. Foot pedal; 6. Sand discharge trough; 7. Valve core connector; 8. NPT connector; 9. Threaded connection hole; 10. Protective cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-3 This embodiment provides a foot valve control device for high-pressure water jet cleaning, including a base plate 1 with an integrated mounting groove and a quick-change interface. A foot valve block 2 is provided at one end of the top of the base plate 1. The foot valve block 2 has a valve core 3 inside that can achieve mechanical stop to prevent misoperation. The valve core 3 includes a valve core cylinder fixed on the foot valve block 2. A valve core rod that can move along its axial direction is sleeved on the valve core cylinder. A top head that cooperates with a foot pedal 4 is provided at the end of the valve core rod away from the valve core cylinder. A return spring is provided on the valve core rod at the position between the top head and the valve core cylinder. A foot pedal assembly that cooperates with the valve core 3 is hinged to one end of the foot valve block 2. The foot pedal assembly includes a foot pedal 4 hinged to the foot valve block 2. A foot pedal 5 is provided at the end of the foot pedal 4 away from the foot valve block 2. The high-pressure water pipe is quickly connected to the foot valve block 2 through a quick-connect structure. A protective cover 9 is also provided on the base plate 1.

[0022] In this invention, the high-pressure water pipe is connected to the foot valve block 2 via a quick-connect structure. When the device is not in operation, the valve core rod of the valve core 3 is in the open state under the action of the return spring. At this time, there is a channel for water flow between the sealing end of the valve core rod and the valve core cylinder. High-pressure water enters from the inlet side of the foot valve block 2, flows through the channel between the foot valve block 2 and the valve core 3, flows to the outlet side of the foot valve block 2, and is finally delivered to the spray gun. The foot pedal 4 is hinged to the foot valve block 2 by an extended shaft pin and a needle roller bearing. When the operator steps on the foot pedal 5, the foot pedal 5 and the foot pedal 4 overcome the mechanical stop resistance of the valve core 3 through the shaft pin. At this time, the valve core rod of the valve core 3 compresses the return spring, and the sealing end of the valve core rod faces the sealing end of the valve core cylinder. The valve core rod moves until its sealing end abuts against the sealing surface of the valve core cylinder. At this point, the valve core rod seals the upper channel of the valve core cylinder, closing the high-pressure water flow channel and cutting off the water supply. After releasing the foot pedal assembly, the valve core 3 resets under the action of the return spring. The opening stroke of the valve core 3 is controlled by the rotation angle of the foot pedal assembly. The operator can adjust the opening of the valve core 3 by adjusting the pedal force to regulate the flow or pressure of the high-pressure water. The base plate 1 is made of stainless steel, with integrated mounting groove and quick replacement interface, and has pressure resistance, corrosion resistance and waterproof function. The protective cover 9 is made of integral stainless steel stamping, fully covering the pedal and action area to prevent foreign objects from entering or being accidentally stepped on. The protective cover 9 is also equipped with observation windows and directional indicators on its surface for easy observation and operation by the operator.

[0023] It should be noted that the return spring of the valve core 3 can achieve mechanical stop to prevent misoperation. The return spring on the valve core 3 is set with a reasonable preload (such as 50-80N) to ensure that slight touch, vibration or foreign object impact cannot overcome the spring force. It can only be unlocked and opened when the operator actively applies sufficient stepping force. This reduces the space occupied by the independent mechanical locking structure and meets the needs of the modular and compact design of the foot pedal valve control device. In addition, the foot pedal 5 is provided with several sand discharge grooves 51 arranged at equal intervals. The sand discharge grooves 51 are provided with sand discharge holes. The several sand discharge grooves 51 form an anti-slip structure. Together with the sand discharge holes, they can discharge mud and sand in time, avoiding the accumulation of mud and sand on the foot pedal 5. This is suitable for complex environments such as construction sites and docks.

[0024] Specifically, the quick-connect structure includes a valve core connector 6 that is threaded onto the foot valve block 2 and communicates with the valve core 3. The end of the valve core connector 6 away from the valve core 3 is threaded with an NPT connector 7 that can be connected to a high-pressure water pipe. The quick-connect structure also includes a threaded hole 8 opened on the foot valve block 2. The threaded hole 8 communicates with the NPT connector 7 through the valve core 3 during the pedaling process. The number of threaded holes 8 is at least two.

[0025] The spray gun's pipe connector is threaded through NPT connector 7, allowing the spray gun to connect with valve core 3 via NPT connector 7 and valve core connector 6. In addition, the high-pressure pipeline is threadedly connected to the foot valve block 2 through the threaded hole 8. This quick-plug connection structure eliminates the need for complex tools or cumbersome threading operations, enabling rapid connection and separation of the high-pressure pipeline and valve block, significantly reducing the time required for on-site installation, maintenance, or pipeline replacement.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foot valve control device for high pressure water jet cleaning, characterized in that, The base plate (1) includes an integrated mounting slot and a quick-change interface. A foot valve block (2) is provided at one end of the top of the base plate (1). A valve core (3) is provided inside the foot valve block (2) to achieve mechanical stop and prevent misoperation. A foot pedal assembly that cooperates with the valve core (3) is hinged to one end of the foot valve block (2). A high-pressure water pipe is quickly connected to the foot valve block (2) through a quick-connect structure. A protective cover (9) is also provided on the base plate (1).

2. A foot valve control device for high pressure water jet cleaning according to claim 1, characterized in that The quick-connect structure includes a valve core connector (6) that is threaded onto the foot valve block (2) and communicates with the valve core (3), and the end of the valve core connector (6) away from the valve core (3) is threaded onto an NPT connector (7) that can be connected to a high-pressure water pipe.

3. A foot valve control device for high pressure water jet cleaning according to claim 2, characterized in that The quick-connect structure also includes a threaded hole (8) on the foot valve block (2), which is connected to the NPT connector (7) through the valve core (3) during the stepping process.

4. A foot valve control device for high pressure water jet cleaning according to claim 3, characterized in that The number of threaded holes (8) is at least two.

5. A foot valve control device for high-pressure water jet cleaning according to claim 1, characterized in that, The foot pedal assembly includes a foot pedal rod (4) hinged to the foot valve block (2), and a foot pedal (5) is provided at the end of the foot pedal rod (4) away from the foot valve block (2).

6. A foot valve control device for high pressure water jet cleaning according to claim 5, characterized in that The foot pedal (5) has several sand discharge grooves (51) arranged at equal intervals, and the sand discharge grooves (51) have sand discharge holes.

7. A foot valve control device for high pressure water jet cleaning according to claim 6, characterized in that The valve core (3) includes a valve core cylinder fixed on the foot valve block (2), a valve core rod that can move along its axial direction is sleeved on the valve core cylinder, a top head that cooperates with the foot pedal (4) is provided at the end of the valve core rod away from the valve core cylinder, and a return spring is provided on the valve core rod at the position between the top head and the valve core cylinder.

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