Anti-jamming gun valve structure for a cleaning machine

Abstract

This application relates to an anti-jamming gun valve structure for a cleaning machine, comprising a valve body, a sealing ball, a spring, a push rod, and a valve seat. The valve seat is disposed within the valve body, and the push rod is slidably sleeved on the valve body. It also includes a positioning seat, a sliding cavity formed in the valve body, the positioning seat being slidably sleeved within the sliding cavity, and a flow channel communicating with the sliding cavity on the positioning seat. A positioning groove is formed on the positioning seat, and the sealing ball is movably connected within the positioning groove. The spring is disposed within the sliding cavity, with its two ends abutting against the bottom wall of the sliding cavity and the positioning seat, respectively. The spring continuously drives the positioning seat to move towards the valve seat, and the end of the push rod located within the valve body always abuts against the sealing ball. Limiting the movement of the sealing ball reduces the possibility of jamming and wear. The flow channel provides a buffering effect.

Description

Technical Field

[0001] This utility model relates to the field of gun valves, and in particular to an anti-jamming gun valve structure for a cleaning machine. Background Technology

[0002] A water gun valve is a common component used in cleaning machines and other equipment to control the flow of water. It mainly consists of a valve body, a sealing ball, a spring, a push rod, and a valve seat. In its natural state, the sealing ball, under the force of the spring, is in close contact with the valve seat, keeping the water flow closed. When the water gun needs to be used, the user presses the push rod, causing it to move axially and push the sealing ball away from the seat, thus opening the water flow.

[0003] The utility model patent application CN219850238U discloses a novel high-pressure spray gun, including a housing, a valve inside the housing, a valve body, a cavity inside the valve body, a spring and a steel ball seat inside the cavity, the spring abutting against the steel ball, the upper end of the steel ball being fixedly connected to the lower end of a top pin, the upper end of the top pin extending out of the valve body and being fixedly connected to a trigger cylindrical pin, the trigger cylindrical pin being engaged in the trigger, the trigger having two arc-shaped through holes, each arc-shaped through hole having a trigger rotating pin, the trigger rotating pin extending out of the arc-shaped through hole and connecting to the housing.

[0004] In the above technical solution, the contact end between the spring and the sealing ball of the gun valve is not equipped with a positioning structure. During use, the spring and the sealing ball are prone to slippage, which may cause the spring to displace or break, resulting in the sealing ball getting stuck. Utility Model Content

[0005] To reduce the possibility of the sealing ball of the gun valve getting stuck, this application provides an anti-jamming gun valve structure for a cleaning machine.

[0006] The anti-jamming gun valve structure for a cleaning machine provided in this application adopts the following technical solution:

[0007] An anti-jamming gun valve structure for a cleaning machine includes a valve body, a sealing ball, a spring, a push rod, and a valve seat. The valve seat is located within the valve body, and the push rod is slidably sleeved on the valve body. The structure also includes a positioning seat. The valve body has a sliding cavity, and the positioning seat is slidably sleeved within the sliding cavity. The positioning seat has a flow channel communicating with the sliding cavity and a positioning groove. The sealing ball is movably connected within the positioning groove. The spring is located within the sliding cavity, and its two ends abut against the bottom wall of the sliding cavity and the positioning seat, respectively. The spring continuously drives the positioning seat to move towards the valve seat. The end of the push rod located within the valve body always abuts against the sealing ball.

[0008] By adopting the above technical solution, by setting a positioning seat and making the sealing ball movably connected in the positioning groove of the positioning seat, the movement of the sealing ball is limited, which can reduce the possibility of the sealing ball getting stuck and the possibility of the sealing ball wearing out. By placing the spring in the sliding cavity, the possibility of the spring breaking can be reduced. By setting a flow channel, a buffering effect can be achieved, increasing the grip of pulling the trigger, reducing the possibility of the spring being damaged by vibration caused by water flow and air explosion, and extending its service life.

[0009] Preferably, the valve body has a liquid inlet channel, the flow channel includes a first channel and two second channels, the first channel is coaxial and opened on the positioning seat, the first channel connects the positioning groove and the sliding cavity, the two second channels are evenly opened on the circumferential side of the positioning seat, the two second channels are respectively connected to the first channel, and the axial direction of the two second channels is parallel to the axial direction of the liquid inlet channel.

[0010] By adopting the above technical solution, when water flows into the valve body from the inlet channel, the axes of the two second channels are parallel to the inlet channel, which allows the water to flow directly and smoothly into the second channels, reducing the lateral impact force of the water flow on the positioning seat and avoiding the possibility of the positioning seat shifting due to uneven force.

[0011] Preferably, a buffer cavity is provided in the valve body, the diameter of the buffer cavity is larger than the diameter of the sliding cavity, and the end face of the positioning seat is located in the buffer cavity.

[0012] By adopting the above technical solution, when water flows in rapidly or the valve is shut off, the buffer chamber can contain some liquid, which can alleviate the impact of instantaneous pressure fluctuations on the positioning seat and sealing ball, and reduce the possibility of the sealing ball getting stuck or worn due to hard collision with the valve seat caused by excessive impact force.

[0013] Preferably, the positioning seat has a limiting groove, the sliding cavity has a limiting cavity, and the two ends of the spring are located in the limiting cavity and the limiting groove, respectively.

[0014] By adopting the above technical solution, the positioning seat can reduce the possibility of spring deviation during compression or tension, so that the spring force is uniformly transmitted to the positioning seat along the axial direction, and maintain the stable movement of the positioning seat.

[0015] Preferably, the diameter of the limiting cavity is smaller than the diameter of the sliding cavity, and the buffer cavity is located between the sliding cavity and the limiting cavity.

[0016] By adopting the above technical solution, the diameter of the limiting cavity is smaller than the diameter of the sliding cavity, so as to avoid the failure of the buffer cavity.

[0017] Preferably, the positioning groove is arc-shaped and can mate with the surface of the sealing ball.

[0018] By adopting the above technical solution, the arc-shaped groove fits into the surface of the sealing ball, which can restrict the radial movement of the sealing ball, keep the sealing ball stably centered in the positioning groove, reduce the possibility of the sealing ball shifting, and at the same time reduce the possibility of friction and wear of the sealing ball.

[0019] Preferably, the top rod has a groove at one end located inside the valve body, and the groove abuts against the sealing ball.

[0020] By adopting the above technical solution, the top of the groove contacts the sealing ball, restricting the movement of the sealing ball, making the force transmission more precise when the push rod pushes the sealing ball, and reducing the possibility of the sealing ball getting stuck due to relative displacement between the push rod and the sealing ball.

[0021] The main technical effects of this utility model are reflected in the following aspects:

[0022] This utility model limits the movement of the sealing ball by setting a positioning seat and making the sealing ball movably connected in the positioning groove of the positioning seat, which can reduce the possibility of the sealing ball getting stuck and the possibility of the sealing ball wearing. By placing the spring in the sliding cavity, the possibility of spring breakage can be reduced. By setting a flow channel, a buffering effect can be achieved, increasing the grip of pulling the trigger, reducing the possibility of the spring being damaged by vibration caused by water flow and air explosion, and extending its service life.

[0023] 2. By setting up several second channels, when water flows into the valve body from the inlet channel, the axes of the two second channels are parallel to the inlet channel, which allows the water to flow directly and smoothly into the second channels, reducing the lateral impact force of the water flow on the positioning seat and avoiding the possibility of the positioning seat shifting due to uneven force. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0025] Figure 2 It is along Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 This is a schematic diagram of the positioning seat structure according to an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Valve body; 2. Sealing ball; 3. Spring; 4. Push rod; 5. Valve seat; 6. Water passage cavity; 7. Liquid inlet channel; 8. Liquid outlet channel; 9. Groove; 10. Positioning seat; 11. Sliding cavity; 12. Flow channel; 13. Positioning groove; 14. Limiting groove; 15. Limiting cavity; 16. First channel; 17. Second channel; 18. Buffer cavity. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0029] This application discloses an anti-jamming gun valve structure for a cleaning machine.

[0030] Reference Figure 1 This embodiment of an anti-jamming gun valve structure for a cleaning machine includes a valve body 1, a sealing ball 2, a spring 3, a push rod 4, and a valve seat 5. The valve body 1 has a water passage cavity 6, and the valve seat 5 has an inlet channel 7 and an outlet channel 8 connected to the water passage cavity 6. The valve seat 5 is installed in the water passage cavity 6. The push rod 4 is slidably sleeved on the valve body 1. The two ends of the push rod 4 pass through to the outside and the water passage cavity 6, respectively. The end of the push rod 4 located in the valve body 1 has a groove 9, which abuts against the sealing ball 2.

[0031] Reference Figure 1 The top of the groove 9 contacts the sealing ball 2, restricting the movement of the sealing ball 2, making the force transmission more precise when the push rod 4 pushes the sealing ball 2, and reducing the possibility of the sealing ball 2 getting stuck due to relative displacement between the push rod 4 and the sealing ball 2.

[0032] Reference Figure 2 and Figure 3 It also includes a positioning seat 10, a sliding cavity 11 on the valve body 1, the sliding cavity 11 being connected to the water cavity 6, the positioning seat 10 being slidably sleeved in the sliding cavity 11, and a flow channel 12 connecting the water cavity 6 and the sliding cavity 11 on the positioning seat 10, a positioning groove 13 being provided at one end of the positioning seat 10 located in the water cavity 6, a sealing ball 2 being movably connected in the positioning groove 13, a limiting groove 14 being provided at one end of the positioning seat 10 located in the sliding cavity 11, and a limiting cavity 15 being provided in the sliding cavity 11, a spring 3 being installed in the sliding cavity 11, and the two ends of the spring 3 being located in the limiting cavity 15 and the limiting groove 14 respectively and abutting against the bottom wall of the limiting cavity 15 and the limiting groove 14 respectively, the spring 3 always driving the positioning seat 10 to move toward the valve seat 5.

[0033] Reference Figure 1 By setting the positioning seat 10 and movably connecting the sealing ball 2 in the positioning groove 13 of the positioning seat 10, the movement of the sealing ball 2 is limited, which can reduce the possibility of the sealing ball 2 getting stuck and the possibility of the sealing ball 2 wearing. By placing the spring 3 in the sliding cavity 11, the possibility of the spring 3 breaking can be reduced. The setting of the limiting groove 14 and the limiting cavity 15 can reduce the possibility of the spring 3 shifting during compression or tension, so that the force of the spring 3 is evenly transmitted to the positioning seat 10 along the axial direction, maintaining the stable movement of the positioning seat 10. By setting the flow channel 12, a buffering effect can be played, increasing the grip of pulling the trigger, reducing the possibility of the spring 3 being damaged by vibration caused by water flow and air explosion, and extending its service life.

[0034] Reference Figure 2 and Figure 3 The flow channel 12 includes a first channel 16 and two second channels 17. The first channel 16 is coaxial and formed on the positioning seat 10, connecting the positioning groove 13 and the sliding cavity 11. The two second channels 17 are evenly formed on the circumferential side of the positioning seat 10, and each of the two second channels 17 is connected to the first channel 16. The axial direction of the two second channels 17 is parallel to the axial direction of the liquid inlet channel 7. When water flows into the valve body 1 from the liquid inlet channel 7, the axes of the two second channels 17 are parallel to the liquid inlet channel 7, allowing the water to flow directly and smoothly into the second channels 17, reducing the lateral impact force of the water flow on the positioning seat 10, and avoiding the possibility of the positioning seat 10 shifting due to uneven force.

[0035] Reference Figure 2 and Figure 3 The positioning groove 13 is arc-shaped and can mate with the surface of the sealing ball 2. The arc-shaped groove fits against the surface of the sealing ball 2, which can restrict the radial movement of the sealing ball 2, so that the sealing ball 2 is stably centered in the positioning groove 13, reducing the possibility of the sealing ball 2 shifting, and at the same time reducing the possibility of friction and wear of the sealing ball 2.

[0036] Reference Figure 1 and Figure 2 A buffer chamber 18 is provided inside the valve body 1. The diameter of the buffer chamber 18 is larger than the diameter of the sliding chamber 11, and the diameter of the limiting chamber 15 is smaller than the diameter of the sliding chamber 11. The buffer chamber 18 is located between the sliding chamber 11 and the limiting chamber 15, and the end face of the positioning seat 10 is located inside the buffer chamber 18.

[0037] Reference Figure 1 and Figure 2 When water flows in rapidly or the valve is shut off, the buffer chamber 18 contains some liquid, which can alleviate the impact of instantaneous pressure fluctuations on the positioning seat 10 and the sealing ball 2, reducing the possibility of the sealing ball 2 getting stuck or worn due to hard collision with the valve seat 5 caused by excessive impact force. The diameter of the limiting chamber 15 is smaller than the diameter of the sliding chamber 11 to avoid failure of the buffer chamber 18.

[0038] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A jamming-proof gun valve structure for a cleaning machine, comprising a valve body (1), a sealing ball (2), a spring (3), a push rod (4), and a valve seat (5), wherein the valve seat (5) is disposed within the valve body (1), and the push rod (4) is slidably sleeved on the valve body (1), characterized in that: It also includes a positioning seat (10), a sliding cavity (11) on the valve body (1), the positioning seat (10) is slidably sleeved in the sliding cavity (11), and a flow channel (12) communicating with the sliding cavity (11) is opened on the positioning seat (10), a positioning groove (13) is opened on the positioning seat (10), the sealing ball (2) is movably connected in the positioning groove (13), the spring (3) is located in the sliding cavity (11), the two ends of the spring (3) abut against the bottom wall of the sliding cavity (11) and the positioning seat (10) respectively, the spring (3) always drives the positioning seat (10) to move toward the valve seat (5), and the end of the push rod (4) located in the valve body (1) always abuts against the sealing ball (2).

2. The anti-jamming gun valve structure for a cleaning machine according to claim 1, characterized in that: The valve body (1) is provided with an inlet channel (7). The flow channel (12) includes a first channel (16) and two second channels (17). The first channel (16) is coaxial and opened on the positioning seat (10). The first channel (16) connects the positioning groove (13) and the sliding cavity (11). The two second channels (17) are evenly opened on the circumferential side of the positioning seat (10). The two second channels (17) are respectively connected to the first channel (16), and the axial direction of the two second channels (17) is parallel to the axial direction of the inlet channel (7).

3. The anti-jamming gun valve structure for a cleaning machine according to claim 1, characterized in that: The valve body (1) has a buffer cavity (18) inside, the diameter of the buffer cavity (18) is larger than the diameter of the sliding cavity (11), and the end face of the positioning seat (10) is located inside the buffer cavity (18).

4. The anti-jamming gun valve structure for a cleaning machine according to claim 3, characterized in that: The positioning seat (10) has a limiting groove (14), and the sliding cavity (11) has a limiting cavity (15). The two ends of the spring (3) are located in the limiting cavity (15) and the limiting groove (14), respectively.

5. The anti-jamming gun valve structure for a cleaning machine according to claim 4, characterized in that: The diameter of the limiting cavity (15) is smaller than the diameter of the sliding cavity (11), and the buffer cavity (18) is located between the sliding cavity (11) and the limiting cavity (15).

6. The anti-jamming gun valve structure for a cleaning machine according to claim 1, characterized in that: The positioning groove (13) is arc-shaped and can cooperate with the surface of the sealing ball (2).

7. The anti-jamming gun valve structure for a cleaning machine according to claim 1, characterized in that: The top rod (4) has a groove (9) at one end inside the valve body (1), and the groove (9) abuts against the sealing ball (2).

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