A high pressure washer lance

Abstract

The utility model provides a kind of high-pressure cleaning machine gun head, comprising: hand-held handle, hand-held handle is provided with holding cavity, hand-held handle is provided with flow-through cavity in, and the water inlet and water outlet being communicated with flow-through cavity;Hand-held handle includes switch piece, switch piece is movably set in holding cavity relative to hand-held handle, switch piece is used to control the flow of water flow in flow-through cavity in hand-held handle;Driving assembly, at least part of driving assembly is abutted with switch piece, driving assembly is used to drive switch piece movement, by the abutment cooperation of driving assembly and switch piece, realize single hand operation can continuously control water flow to flow out, to solve the technical problem of long time continuous operation in relevant technology, user needs to keep hand pinch action all the time, easily lead to hand muscle fatigue, even cause soreness or discomfort, reduce work efficiency and user experience.

Description

Technical Field

[0001] This utility model relates to the field of cleaning tool technology, specifically to a high-pressure cleaner gun head. Background Technology

[0002] High-pressure washers are a common cleaning device widely used for washing surfaces such as vehicles, floors, and buildings. Traditional high-pressure washers are usually equipped with a handheld nozzle, requiring users to continuously press a trigger or switch to control the water jet. However, in actual operation, especially during prolonged continuous work, users need to maintain a constant squeezing motion, which can easily lead to hand muscle fatigue, even causing soreness or discomfort, reducing work efficiency and user experience.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a high-pressure cleaning gun head to solve the technical problem in related technologies where users need to maintain a squeezing motion with their hands during long-term continuous operation, which can easily lead to hand muscle fatigue, or even soreness or discomfort, thus reducing work efficiency and user experience.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a high-pressure washer nozzle is provided, comprising: a hand grip, the hand grip having a holding cavity, a flow cavity being provided inside the hand grip, and an inlet and an outlet communicating with the flow cavity; the hand grip includes a switch, the switch being movably disposed within the holding cavity relative to the hand grip, the switch being used to control the flow rate of water in the flow cavity of the hand grip; and a drive assembly, at least a portion of the drive assembly abutting against the switch, the drive assembly being used to drive the switch to move.

[0006] Furthermore, the drive assembly includes a cam rotatably disposed within the grip cavity, the contact end of the cam being used to abut against the switch element.

[0007] Furthermore, the drive assembly also includes a handheld part, which is rotatably mounted on a hand grip. The handheld end of the handheld part is located on the outer wall of the hand grip, and the connecting end of the handheld part passes through the hand grip and is connected to a cam so as to drive the cam to move by rotating the handheld part.

[0008] Furthermore, the high-pressure washer nozzle also includes: a locking assembly, comprising: a ratchet rotatably mounted on a hand grip, the ratchet being connected to a cam to drive the cam to rotate via the rotation of the ratchet; a pawl located above the ratchet, one end of the pawl movably mounted on the hand grip, and the other end of the pawl facing the ratchet, the pawl being used to abut against the ratchet; a stop pawl movably mounted on the hand grip, and the stop pawl located to one side of the ratchet, the stop pawl and the ratchet being spaced apart, the abutting end of the stop pawl facing the ratchet, the abutting end of the stop pawl being used to abut against the ratchet, the stop pawl being used to prevent the ratchet from reversing; and an elastic pressure plate mounted on the hand grip, the elastic pressure plate located above the stop pawl, the elastic pressure plate abutting against the side of the stop pawl facing away from the ratchet.

[0009] Furthermore, the high-pressure washer nozzle also includes: a gun barrel and a vertical handle. The gun barrel extends in a preset direction, and the outlets of the gun barrel and the hand handle are connected. The vertical handle includes: a sleeve, which is movably fitted onto the gun barrel along its extension direction; and a gripping rod, which is installed on one side of the sleeve and whose extension direction is perpendicular to the extension direction of the gun barrel.

[0010] Furthermore, the vertical grip also includes: a sliding rod, the grip rod having a groove extending along the extension direction of the grip rod, the sliding rod being movably disposed within the groove along the extension direction of the groove, a friction part being provided on the side of the sliding rod near the gun barrel, the friction part abutting against the gun barrel; a telescopic spring, the two ends of the telescopic spring being connected to the inner wall of the groove away from the gun barrel and the side of the sliding rod away from the gun barrel, respectively; and a push plate, the push plate extending along the extension direction of the gun barrel, the push plate being connected to the side of the sliding rod facing the hand grip.

[0011] Furthermore, the high-pressure washer nozzle also includes a nozzle head, which is detachably mounted on the nozzle shaft.

[0012] Beneficial effects:

[0013] 1. The handheld end of the handle protrudes from the grip surface, allowing the operator to directly rotate the handheld part with their thumb or forefinger, thus rotating the cam. The rigid connection structure between its connecting end and the cam ensures efficient transmission of driving force, and the rotation angle corresponds linearly to changes in flow rate.

[0014] 2. The ratchet and cam are coaxially connected. The unidirectional limit of the pawl and the reverse locking of the stop pawl enable the step-by-step fixing of the flow level. The continuous pressure of the elastic pressure plate on the stop pawl ensures that the ratchet is locked reliably, preventing the level from reverting due to the impact of high-pressure water flow and ensuring the stability of flow control.

[0015] 3. The sliding rod is elastically pressed against the gun barrel through the friction part, and in conjunction with the push-pull action of the push plate, it realizes the quick locking of the vertical grip position; the preload design of the telescopic spring ensures that the contact pressure between the friction part and the gun barrel is constant, and avoids displacement of the vertical grip due to vibration during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-pressure cleaning gun head used in an embodiment of this utility model;

[0017] Figure 2 This is a high-pressure cleaning gun head used in an embodiment of the present invention. Figure 1 Enlarged diagram of point A in the diagram;

[0018] Figure 3 This is a partial structural diagram of a high-pressure cleaner gun head provided in an embodiment of the present invention.

[0019] The above figures include the following reference numerals:

[0020] 1. Hand grip; 2. Grip cavity; 3. Switch; 4. Drive assembly; 5. Cam; 6. Hand grip; 7. Locking assembly; 8. Ratchet; 9. Pad; 10. Stop pawl; 11. Elastic pressure plate; 12. Barrel; 13. Vertical grip; 14. Sleeve; 15. Grip lever; 16. Sliding lever; 17. Telescopic spring; 18. Push plate; 19. Gun head. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] According to an embodiment of this utility model, a high-pressure cleaning gun head is provided. Please refer to [link / reference]. Figures 1 to 3 The device includes: a hand grip 1, a grip cavity 2, a flow cavity, and an inlet and an outlet communicating with the flow cavity; the hand grip 1 includes a switch 3, which is movably disposed within the grip cavity 2 relative to the hand grip 1, and the switch 3 is used to control the flow rate of water in the flow cavity of the hand grip 1; and a drive assembly 4, at least a portion of which abuts against the switch 3, and the drive assembly 4 is used to drive the switch 3 to move.

[0023] By adopting the above technical solution, the water flow can be continuously controlled by one hand through the contact and cooperation between the drive component 4 and the switch component 3. This solves the technical problem in related technologies where users need to keep their hands pinching during long-term continuous operation, which can easily lead to hand muscle fatigue, or even soreness or discomfort, thus reducing work efficiency and user experience.

[0024] Please refer to Figure 3 The drive assembly 4 includes a cam 5, which is rotatably disposed within the gripping cavity 2, and the contact end of the cam 5 is used to abut against the switch element 3.

[0025] By adopting the above technical solution, the contact between the cam 5 and the switch 3, through the rotation of the eccentric profile of the cam 5, converts the rotational motion into the linear displacement of the switch 3, significantly reducing the manual operating force required when switching or adjusting the water flow.

[0026] Please refer to Figure 2 The drive assembly 4 also includes a handheld part 6, which is rotatably mounted on the hand grip 1. The handheld end of the handheld part 6 is located on the outer wall of the hand grip 1, and the connecting end of the handheld part 6 passes through the hand grip 1 and is connected to the cam 5 so that the cam 5 can be driven to move by rotating the handheld part 6.

[0027] By adopting the above technical solution, the handheld end of the handheld part 6 is exposed on the surface of the hand grip 1. The operator can directly rotate the handheld part 6 with the thumb or index finger to drive the cam 5 to rotate. The rigid connection structure between its connecting end and the cam 5 ensures the efficient transmission of driving force, and the rotation angle is linearly related to the flow rate change.

[0028] Please refer to Figure 2 and Figure 3 The high-pressure washer nozzle also includes: a locking assembly 7, which includes: a ratchet 8, rotatably mounted on the hand grip 1, connected to a cam 5; the ratchet 8 rotating to drive the cam 5 to rotate; a pawl 9, located above the ratchet 8, one end of the pawl 9 movably mounted on the hand grip 1, and the other end of the pawl 9 facing the ratchet 8, the pawl 9 for abutting against the ratchet 8; and a stop pawl 10, movably mounted on... A stop pawl 10 is placed on the hand grip 1, and the stop pawl 10 is located on one side of the ratchet 8. The stop pawl 10 and the ratchet 9 are spaced apart. The abutting end of the stop pawl 10 is set towards the ratchet 8 and is used to abut against the ratchet 8. The stop pawl 10 is used to prevent the ratchet 8 from reversing. An elastic pressure plate 11 is placed on the hand grip 1 and is located above the stop pawl 10. The elastic pressure plate 11 abuts against the side of the stop pawl 10 that is away from the ratchet 9.

[0029] By adopting the above technical solution, the ratchet 8 is coaxially connected to the cam 5. The unidirectional limiting of the pawl 9 and the reverse locking of the stop pawl 10 realize the step-by-step fixing of the flow level. The continuous pressure of the elastic pressure plate 11 on the stop pawl 10 ensures that the ratchet 8 is locked reliably, prevents the level from reverting due to the impact of high pressure water flow, and ensures the stability of flow control.

[0030] Please refer to Figure 1 The high-pressure washer nozzle also includes: a gun barrel 12 and a vertical handle 13. The gun barrel 12 extends in a preset direction and is connected to the water outlet of the hand handle 1. The vertical handle 13 includes: a sleeve 14, which is movably fitted onto the gun barrel 12 along the extension direction of the gun barrel 12; and a gripping rod 15, which is installed on one side of the sleeve 14 and whose extension direction is perpendicular to the extension direction of the gun barrel 12.

[0031] By adopting the above technical solution, the sleeve 14 slides along the shaft 12 axis, so that the position of the vertical grip 13 can be flexibly adjusted according to the operator's arm length; the vertical arrangement of the grip bar 15 and the shaft 12 forms a double grip point, which distributes the force on the hand, reduces fatigue during long-term operation, and enhances the control accuracy.

[0032] Please refer to Figure 3 The vertical grip 13 also includes: a sliding rod 16, the grip rod 15 having a groove extending along the extension direction of the grip rod 15, the sliding rod 16 being movably disposed in the groove along the extension direction of the groove, the sliding rod 16 having a friction part on the side near the gun barrel 12, the friction part abutting against the gun barrel 12; a telescopic spring 17, the two ends of the telescopic spring 17 being connected to the inner side wall of the groove away from the gun barrel 12 and the side of the sliding rod 16 away from the gun barrel 12, respectively; and a push plate 18, the push plate 18 extending along the extension direction of the gun barrel 12, the push plate 18 being connected to the side of the sliding rod 16 facing the hand grip 1.

[0033] By adopting the above technical solution, the sliding rod 16 is elastically pressed against the gun barrel 12 through the friction part, and in conjunction with the pushing and pulling action of the push plate 18, the vertical grip 13 is quickly locked in position; the pre-tightening force design of the telescopic spring 17 ensures that the contact pressure between the friction part and the gun barrel 12 is constant, and avoids the vertical grip 13 from shifting due to vibration during operation.

[0034] Please refer to Figure 3 The high-pressure washer nozzle also includes nozzle 19, which is detachably mounted on nozzle shaft 12.

[0035] By adopting the above technical solution, the threaded or snap-fit ​​connection between the nozzle head 19 and the nozzle rod 12 supports the quick replacement of different nozzle types and is suitable for various cleaning scenarios (such as fan-shaped rinsing, high-pressure point spraying, etc.); the modular design simplifies the maintenance process, and the connection has a sealing structure to effectively prevent high-pressure water leakage.

[0036] Working principle:

[0037] When the operator rotates the handheld part 6, the drive cam 5 rotates and pushes the switch 3 to move linearly, gradually opening the flow chamber channel to adjust the water flow rate. The locking component 7, through the alternating engagement of the toothed groove of the ratchet 8 with the pawl 9 and the stop pawl 10, fixes the flow rate setting at the target value. The vertical grip 13 achieves position adjustment through the friction locking of the sliding rod 16, forming a stable human-machine interface in conjunction with the spray direction of the nozzle 19. When it is necessary to switch cleaning modes, the nozzle 19 can be directly disassembled and the corresponding nozzle replaced to quickly adjust the cleaning effect.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0039] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0040] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0041] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0042] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A high-pressure cleaning gun head, characterized in that, include: A hand grip (1) is provided with a grip cavity (2), a flow cavity is provided inside the hand grip (1), and an inlet and an outlet connected to the flow cavity; The hand grip (1) includes a switch (3), which is movably disposed in the grip cavity (2) relative to the hand grip (1). The switch (3) is used to control the flow rate of water in the flow cavity in the hand grip (1). A drive assembly (4), at least a portion of which abuts against the switch (3), the drive assembly (4) being used to drive the switch (3) to move.

2. The high-pressure cleaning gun head according to claim 1, characterized in that, The driving component (4) includes; Cam (5), which is rotatably disposed in the grip cavity (2), and the contact end of the cam (5) is used to abut against the switch (3).

3. The high-pressure cleaning gun head according to claim 2, characterized in that, The driving component (4) also includes; Handle (6) is rotatably mounted on the hand grip (1). The hand end of the handle (6) is located on the outer wall of the hand grip (1). The connecting end of the handle (6) passes through the hand grip (1) and is connected to the cam (5) so that the cam (5) can be moved by rotating the handle (6).

4. The high-pressure cleaning gun head according to claim 2, characterized in that, The high-pressure cleaner nozzle also includes: a locking assembly (7), the locking assembly (7) comprising: A ratchet (8) is rotatably mounted on the hand grip (1) and connected to the cam (5); so that the cam (5) can be rotated by the rotation of the ratchet (8); Pawl (9), the pawl (9) is located above the ratchet (8), one end of the pawl (9) is movably disposed on the hand grip (1), and the other end of the pawl (9) is disposed toward the ratchet (8), the pawl (9) is used to abut against the ratchet (8); A stop pawl (10) is movably disposed on the hand grip (1) and the stop pawl (10) is located on one side of the ratchet (8). The stop pawl (10) is disposed at a distance from the ratchet pawl (9). The abutting end of the stop pawl (10) is disposed towards the ratchet (8). The abutting end of the stop pawl (10) is used to abut against the ratchet (8). The stop pawl (10) is used to prevent the ratchet (8) from reversing. An elastic pressure plate (11) is disposed on the hand grip (1), the elastic pressure plate (11) is located above the stop pawl (10), and the elastic pressure plate (11) abuts against the side of the stop pawl (10) facing away from the pawl (9).

5. The high-pressure cleaning gun head according to claim 1, characterized in that, The high-pressure washer nozzle also includes: a nozzle shaft (12) and a vertical handle (13), the nozzle shaft (12) extending in a preset direction, the nozzle shaft (12) being connected to the water outlet of the hand handle (1), and the vertical handle (13) comprising: Sleeve (14), which is movably sleeved on the gun barrel (12) along the extension direction of the gun barrel (12); A grip rod (15) is mounted on one side of the sleeve (14), and the extension direction of the grip rod (15) is perpendicular to the extension direction of the gun barrel (12).

6. The high-pressure cleaning gun head according to claim 5, characterized in that, The vertical grip (13) also includes: The sliding rod (16) has a groove extending along the extension direction of the gripping rod (15). The sliding rod (16) is movably disposed in the groove along the extension direction of the groove. A friction part is provided on the side of the sliding rod (16) near the gun rod (12). The friction part abuts against the gun rod (12). The telescopic spring (17) has two ends connected to the inner side wall of the slide groove away from the gun rod (12) and the side of the sliding rod (16) away from the gun rod (12), respectively. A push plate (18) extends along the extension direction of the gun barrel (12) and is connected to the sliding rod (16) on the side facing the hand grip (1).

7. The high-pressure cleaning gun head according to claim 5, characterized in that, The high-pressure washer gun head also includes a gun head (19), which is detachably mounted on the gun rod (12).

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