Water gun and water spraying device

Abstract

The present disclosure relates to the technical field of water spraying devices, and discloses a water gun and a water spraying device. The water gun comprises: a gun barrel having a water gun nozzle and a fixed end oppositely arranged in a first direction, a variable-volume water storage bin arranged in the gun barrel, and a water supply hole on the barrel wall of the gun barrel and communicating with the variable-volume water storage bin; a pulling member is arranged in the gun barrel and comprises a pulling barrel and a movable rod, the movable rod being slidably connected to the pulling barrel in the first direction, the movable rod having a driving end portion and a sealing end portion oppositely arranged in the first direction, and the driving end portion being located in the pulling barrel; a first pulling end portion of the pulling barrel close to the variable-volume water storage bin is sealingly and slidably matched with the gun barrel to form the variable-volume water storage bin, and the movable rod is moved to open or close the water gun nozzle; a first elastic member is arranged between the pulling barrel and the fixed end in the first direction; a second elastic member is arranged between the driving end portion and the pulling barrel in the first direction, and the movable rod is caused to open the water gun nozzle.

Description

Technical Field

[0001] This disclosure relates to the field of water spraying device technology, and more specifically, to a water gun and water spraying device. Background Technology

[0002] Current water guns use a locking structure to limit the pull-out components, but this can easily lead to situations where the locking structure fails to lock properly, allowing water to be fired, or the locking structure cannot be locked at all. In addition, the locking structure has only one function: locking, and cannot assist in opening the water gun nozzle.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a water gun and water spraying device.

[0005] According to one aspect of this disclosure, a water gun is provided, comprising: A gun barrel has a water gun nozzle and a fixed end arranged opposite each other in a first direction. A variable volume water storage tank is provided inside the gun barrel. A water supply hole is provided on the barrel wall. The water supply hole is connected to the variable volume water storage tank. The water supply hole is used to connect a water pump. A pull-out component is disposed inside the gun barrel. The pull-out component includes a pull-out cylinder and a movable rod. The movable rod is slidably connected to the pull-out cylinder along a first direction. The movable rod has a driving end and a sealing end disposed opposite to each other in the first direction. The driving end is located inside the pull-out cylinder. The end of the pull-out cylinder near the variable volume water storage tank is a first pull-out end. The first pull-out end is sealed and slidably fitted to the gun barrel to form the variable volume water storage tank. The movable rod moves along the first direction to open or close the water gun nozzle at the sealing end. A first elastic element is disposed between the pull-out tube and the fixed end along the first direction; A second elastic element is disposed inside the pull tube along the first direction and located between the drive end and the pull tube. The second elastic element causes the movable rod to open the water gun nozzle.

[0006] In one exemplary embodiment of this disclosure, the second elastic element is a compression spring, and the second elastic element is located between the driving end and the first pull-out end; Alternatively, the pull-out tube has a second pull-out end disposed opposite to the first pull-out end in the first direction, the second elastic element being a tension spring, and the second elastic element being located between the drive end and the second pull-out end.

[0007] In one exemplary embodiment of this disclosure, the first elastic element is a compression spring, and the stiffness coefficient of the first elastic element is greater than that of the second elastic element, so that the minimum elastic force generated by the first elastic element is greater than the maximum elastic force generated by the second elastic element.

[0008] In one exemplary embodiment of this disclosure, the water gun further includes: A limiting structure is provided inside the gun barrel, and the limiting structure is used to limit the movable rod and the pull tube; Alternatively, the limiting structure is used to limit the pull-out tube.

[0009] In one exemplary embodiment of this disclosure, the limiting structure includes a limiting rod, the first elastic element is sleeved outside the limiting rod, and the limiting rod is disposed inside the gun barrel along the first direction; The limiting rod includes a first segment and a second segment connected sequentially along the first direction. The end of the first segment opposite to the second segment is connected to the fixed end. The second pull-out end is provided with a guide through hole. The second segment passes through the guide through hole. The diameter of the first segment is larger than the diameter of the second segment. The first segment is used to limit the pull-out tube, and the second segment is used to limit the movable rod. Alternatively, the limiting rod may include a first segment extending along the first direction, one end of which is connected to the fixed end, and the other end of which is used to limit the pull-out tube.

[0010] In an exemplary embodiment of this disclosure, the initial state is: the sealing end is sealed to the water gun nozzle; During the water filling process, the state of the sealed end is such that the sum of the pressure F of the water flow provided by the water pump on the sealed end and the frictional force f of the gun barrel on the sealed end is greater than the sum of the elastic force Fb generated by the second elastic element and the frictional force f of the pull-out cylinder on the movable rod, so that the sealed end remains sealed at the water gun nozzle, so as to fill the variable volume water storage tank with water. During the water filling process, the state of the pull-out cylinder is as follows: the pressure F of the water flow provided by the water pump on the pull-out cylinder is greater than the sum of the elastic force Ft generated by the first elastic element, the elastic force Fb generated by the second elastic element, the pressure F of the water flow provided by the water pump on the sealing end, the frictional force f of the pull-out cylinder on the movable rod, the frictional force f of the gun barrel on the sealing end, and the frictional force f of the pull-out cylinder on the gun barrel, so that the water flow continuously pushes the pull-out cylinder to move closer to the fixed end to realize the filling of the variable volume water storage tank; When the first pull-out end abuts against the drive end, the pull-out cylinder and the movable rod move together toward the fixed end. The pressure F of the water flow provided by the water pump on the pull-out cylinder is greater than the sum of the elastic force Ft generated by the first elastic element, the elastic force Fb generated by the second elastic element, the pressure F of the water flow provided by the water pump on the sealing end, the frictional force f of the gun barrel on the sealing end, and the frictional force f of the pull-out cylinder on the gun barrel. This allows the water flow to continuously push the pull-out cylinder and the movable rod to continuously move toward the side closer to the fixed end, thereby achieving the maximum water storage capacity of the variable volume water storage tank. During the launch process, the state of the sealed end is as follows: the variable volume water tank reaches its maximum water storage capacity, the water gun nozzle opens, the water pump provides water flow with pressure F on the sealed end, the gun barrel exerts frictional force f on the sealed end, and the sealed end is subjected to elastic force Fb generated by the second elastic element and frictional force f exerted by the pull tube on the movable rod, so as to ensure the smooth flow of the water gun nozzle. During the firing process, the state of the pull tube is as follows: the sum of the elastic force Ft generated by the first elastic element and the elastic force Fb generated by the second elastic element is greater than the sum of the water pressure F' of the water in the variable volume water storage tank on the pull tube, the frictional force f of the pull tube on the gun barrel, and the frictional force f of the pull tube on the movable rod, so that the first elastic element pushes the pull tube to move closer to the water gun nozzle to achieve water spraying; When the pull-out cylinder abuts against the drive end, the pull-out cylinder and the movable rod move together toward the water gun nozzle. The sum of the elastic force Ft generated by the first elastic element and the elastic force Fb generated by the second elastic element is greater than the sum of the water pressure F' of the water in the variable volume water storage tank on the pull-out cylinder and the frictional force f of the pull-out cylinder on the gun barrel, so that the first elastic element pushes the movable rod to move and causes the sealing end to close the water gun nozzle. When the sealing end closes the water gun nozzle, the frictional force f between the gun barrel and the sealing end is generated again. The sum of the elastic force Ft generated by the first elastic element and the elastic force Fb generated by the second elastic element is greater than the sum of the water pressure F' of the water in the variable volume water storage tank on the pull tube, the frictional force f between the pull tube and the gun barrel, and the frictional force f between the gun barrel and the sealing end. After the water gun nozzle is closed, it returns to its initial state, and the sealing end seals the water gun nozzle.

[0011] In one exemplary embodiment of this disclosure, the water gun further includes: A positioning part is provided inside the pull-out tube, and the positioning part is used to impact the movable rod to achieve the closure of the movable rod on the water gun nozzle; the first elastic element is provided between the positioning part and the fixed end.

[0012] In one exemplary embodiment of this disclosure, the pull-out tube includes: First cylinder; The second cylinder is at least partially disposed within the first cylinder, and the second cylinder includes the positioning part, which is disposed on the side of the first elastic member near the movable rod.

[0013] In an exemplary embodiment of this disclosure, the first pull-out end is provided with a through hole; the movable rod further includes a rod portion that extends through the through hole, so that the movable rod is slidably connected to the pull-out cylinder, and the rod portion is sealed to the wall of the through hole; the driving end is connected to the end of the rod portion near the first elastic member; the sealing end is connected to the end of the rod portion away from the first elastic member.

[0014] In one exemplary embodiment of this disclosure, the gun barrel includes: Water spray nozzle; A fixed cylinder is connected to the water spray cylinder, and the central axis of the fixed cylinder and the central axis of the water spray cylinder are located on the same straight line; The end of the water spray tube away from the fixed tube is the water gun nozzle, and the end of the fixed tube away from the water spray tube is the fixed end; the pull-out end is fitted inside the water spray tube, and the other end of the pull-out tube is located inside the fixed tube.

[0015] In one exemplary embodiment of this disclosure, the water gun further includes: A one-way vent valve is connected to the water supply port.

[0016] In one exemplary embodiment of this disclosure, the one-way exhaust valve includes: The housing has a first opening and a second opening, the first opening communicating with the water supply hole; A valve core is disposed inside the housing, and a vent hole is provided on the valve core; A third elastic element is disposed between the valve core and the housing; A sealing element is provided on the inner side wall of the housing; when the water gun is in the pre-firing state, the third elastic element extends, and the valve core is not in contact with the sealing element, so that the water flow compresses the air to be discharged; when the water gun is in the firing state, the water flow compresses the third elastic element, so that the valve core contacts the sealing element to seal.

[0017] In one exemplary embodiment of this disclosure, the second opening is used to connect to a water supply source.

[0018] In one exemplary embodiment of this disclosure, the water gun further includes: A water pump is connected to the water supply port.

[0019] According to another aspect of this disclosure, a water spraying device is provided, comprising: A cleaning gun with a cleaning nozzle; The water gun is the water gun as described in any one of the claims; A water pump is connected to the cleaning gun and the water gun, and the water pump is used to connect to a water supply source.

[0020] In one exemplary embodiment of this disclosure, the water pump is used to connect to an external water source, the external water source being the water supply source; and / or, the water spraying device further includes: The liquid storage tank is connected to the water pump and serves as the water source; the liquid storage tank is also connected to the cleaning nozzle to provide cleaning fluid to the cleaning gun; the liquid storage tank is equipped with an air intake structure for air to enter.

[0021] In one exemplary embodiment of this disclosure, the water spraying device further includes: A water path switching mechanism is connected to the water pump, the cleaning gun, and the water gun; the water path switching mechanism is used to switch the water pump to be connected to the cleaning gun or to the water gun.

[0022] In one exemplary embodiment of this disclosure, the waterway switching mechanism includes: The water outlet structure includes a water outlet cavity and a main water inlet channel, a first water outlet channel, and a second water outlet channel connected to the water outlet cavity. The main water inlet channel is used to connect to the water outlet of the water pump, the first water outlet channel is connected to the water gun, and the second water outlet channel is connected to the cleaning gun. A water outlet valve core is disposed in the water outlet chamber, and the water outlet valve core includes a first water outlet sealing part and a second water outlet sealing part; An adjusting part is used to drive the water outlet valve core to move so that the first water outlet sealing part seals the first water outlet channel and the second water outlet channel is open, or the second water outlet sealing part seals the second water outlet channel and the first water outlet channel is open.

[0023] In one exemplary embodiment of this disclosure, the water path switching mechanism is further connected to the external water source and the liquid storage tank; the water path switching mechanism is also used to switch the external water source to the water pump or the liquid storage tank to the water pump.

[0024] In one exemplary embodiment of this disclosure, the waterway switching mechanism further includes: The water inlet structure includes a water inlet cavity and a main water outlet channel, a first water inlet channel, and a second water inlet channel connected to the water inlet cavity. The main water outlet channel is used to connect to the water inlet of the water pump. The first water inlet channel is connected to the liquid storage tank, and the second water inlet channel is connected to the external water source. The inlet valve core is disposed in the inlet chamber. The inlet valve core includes a first inlet sealing part and a second inlet sealing part. The adjusting part is also used to drive the outlet valve core to move so that the first inlet sealing part seals the first inlet channel and the second inlet channel is open, or the second inlet sealing part seals the second inlet channel and the first inlet channel is open.

[0025] The water gun disclosed herein, on the one hand, provides elastic support through a second elastic element during the firing process, ensuring that the movable rod remains in the open water gun nozzle state, thus improving the continuity of water gun firing, increasing the continuous firing speed of the water gun, and avoiding the need to use a locking structure to position the movable rod; on the other hand, it ensures that the ejected water column remains unified, the sprayed water column has a longer distance, is not easy to disperse, has a strong impact force, presents a large volume of water bullets, and has a long-distance firing effect. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0027] Figure 1 This is a schematic diagram of the structure of an example embodiment of the water gun disclosed herein in its initial state.

[0028] Figure 2 for Figure 1 The diagram shows the structure of the water gun in a state of near-filling with water.

[0029] Figure 3 for Figure 1 A schematic diagram of the water gun in a fully filled state and ready to fire.

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of a water gun in a state nearing the end of its firing.

[0031] Figure 5 This is a schematic diagram of the structure in the initial state of another example embodiment of the water gun disclosed herein.

[0032] Figure 6 for Figure 1 A magnified view of the portion indicated by H in the middle.

[0033] Figure 7 This is a schematic diagram of an example embodiment of the water spraying device disclosed herein.

[0034] Figure 8 for Figure 7 A schematic diagram of an example implementation of the waterway switching mechanism.

[0035] Explanation of reference numerals in the attached figures: 1. Gun barrel; 11. Water spray tube; 111. Water gun nozzle; 112. Variable volume water storage tank; 113. Water supply hole; 114. Water flow area; 12. Fixed cylinder; 121. Fixed end; 13. Connecting cylinder; 2. Pull-out component; 21. Pull-out cylinder; 211. First cylinder body; 2111. First pull-out end; 212. Second cylinder body; 2121. Second pull-out end; 212a. Positioning part; 213. Through hole; 22. Movable rod; 221. Rod part; 222. Drive end; 223. Sealing end; 3. First elastic element; 4. Second elastic element; 5. Limiting structure; 51. Limiting rod; 511. First section; 512. Second section; 6. One-way exhaust valve; 61. Housing; 62. Valve core; 621. Vent hole; 63. Third elastic element; 64. Seal; 71. First sealing ring; 72. Second sealing ring; 73. Third sealing ring; 10. Water gun; 20. Water pump; 30. Cleaning gun; 301. Connecting pipe; 302. Nozzle; 40. Water circuit switching mechanism; 41. Water outlet structure; 411. Water outlet chamber; 413. First water outlet channel; 414. Second water outlet channel; 415. First through hole; 42. Water outlet valve core; 422. First water outlet sealing part; 423. Second water outlet sealing part; 43. Adjustment part; 431. Rotating shaft; 432. First cam; 433. Connecting shaft; 434. Second cam; 44. Water inlet structure; 441. Water inlet chamber; 444. Second water inlet channel; 45. Water inlet valve core; 452. First water inlet sealing part; 453. Second water inlet sealing part; 50. Outer shell; 501. Main body; 502. Handle; 601. Push-button switch; 602. Power switch; 70. Battery pack; 80. Liquid reservoir; 90. Control circuit board; X, the first direction; Y, the second direction. Detailed Implementation

[0036] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0037] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0038] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0039] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0040] This disclosure provides an exemplary embodiment of a water gun 10, with reference to... Figures 1-6 As shown, the water gun 10 may include a barrel 1, a pull-out component 2, a first elastic element 3, and a second elastic element 4; the barrel 1 has a water gun nozzle 111 and a fixed end 122 arranged opposite each other in the first direction X, a variable volume water storage tank 112 is provided inside the barrel 1, and a water supply hole 113 is provided on the barrel wall of the barrel 1, which is connected to the variable volume water storage tank 112 and is used to connect to a water pump 20; the pull-out component 2 is provided inside the barrel 1, and the pull-out component 2 may include a pull-out tube 21 and a movable rod 22, the movable rod 22 being slidably connected to the pull-out tube 21 along the first direction X; the movable rod 22 has a driving end 22 arranged opposite each other in the first direction X. 2 and sealing end 223, driving end 222 are located inside the pull tube 21; the end of the pull tube 21 near the variable volume water storage tank 112 is the first pull end 2111, the first pull end 2111 is sealed and slidably fitted to the gun barrel 1 to form the variable volume water storage tank 112, the movable rod 22 moves along the first direction X to open or close the water gun nozzle 111; the first elastic member 3 is disposed between the pull tube 21 and the fixed end 122 along the first direction X; the second elastic member 4 is disposed inside the pull tube 21 along the first direction X and is located between the driving end 222 and the pull tube 21, the second elastic member 4 causes the movable rod 22 to open the water gun nozzle 111.

[0041] Reference Figure 1As shown, the water gun 10 disclosed herein defines the state before water intake as the initial state. At this time, the pull tube 21 is in the initial position. When filling with water, the water pump 20 is turned on. The water pump 20 fills the variable volume water storage tank 112 with water through the water supply hole 113. As the amount of water in the variable volume water storage tank 112 increases, the water pressure will push the pull tube 21 to move along the first direction X towards the fixed end 122. The pull tube 21 applies pressure to the first elastic member 3, and the first elastic member 3 generates elastic force. At the same time, the pull tube 21 also applies force to the second elastic member 4, and the second elastic member 4 generates elastic force. In addition, since the water also applies pressure to the movable rod 22, and the sealing end 223 of the movable rod 22 has friction with the gun barrel 1, the phenomenon at the beginning of water filling is: the pull tube 21 moves towards the fixed end 122, the movable rod 22 remains stationary, and the water gun nozzle 111 is closed.

[0042] refer to Figure 2 As shown, when the container is nearly full of water, the pull-out cylinder 21 abuts against the movable rod 22. The water pressure drives the pull-out cylinder 21 and the movable rod 22 to move together toward the fixed end 122, thereby filling the variable volume water storage tank 112 with water. At this time, the deformation of the second elastic element 4 is at its maximum. The elastic force generated by the second elastic element 4 pushes the movable rod 22 toward the fixed end 122, thereby opening the water gun nozzle.

[0043] refer to Figure 3 As shown, the water gun 10 is in the firing state when it is full of water. The variable volume water storage tank 112 is full of water and the water gun nozzle 111 is opened. At this time, the pull tube 21 and the movable rod 22 are separated and are no longer in contact.

[0044] During the firing process, the water gun nozzle 111 opens. The sum of the elastic force generated by the first elastic element 3 and the elastic force generated by the second elastic element 4 is greater than the pressure of the water in the variable volume water storage tank 112. The pull tube 21 is subjected to the elastic force along the first direction X, causing the pull tube 21 to move towards the water gun nozzle 111, continuously spraying the water in the variable volume water storage tank 112 out through the water gun nozzle 111. In addition, the sealing end 223 is subjected to the elastic force of the second elastic element 4, so that the movable rod 22 always remains in the state of opening the water gun nozzle 111.

[0045] Near the completion of launch, reference Figure 4 As shown, the pull-out cylinder 21 abuts against the movable rod 22. The first elastic element 3 continues to apply elastic force to the pull-out cylinder 21, causing the pull-out cylinder 21 and the movable rod 22 to move together toward the water gun nozzle 111, so that the pull-out cylinder 21 returns to its initial position, all the water in the variable volume water storage tank 112 is sprayed out, and the movable rod 22 closes the water gun nozzle 111, that is, the sealing end 223 seals the water gun nozzle 111 to achieve the desired effect. Figure 1 The initial state is shown.

[0046] After completing the entire process from filling with water to firing, the water gun 10 fires a single jet of water. This is the single-shot mode of the water gun 10. This process ensures that the fired water jet remains unified, with a longer spray distance, less tendency to disperse, strong impact, and a large volume of water bullets with a long-range firing effect. Moreover, during firing, the second elastic element 4 provides elastic support, keeping the movable rod 22 in the open water gun nozzle 111 state, resulting in better firing continuity of the water gun 10, increasing the continuous firing rate of the water gun 10, and avoiding the need to use a locking structure to position the movable rod. The water gun 10 can also be set to a two-shot mode and a multi-shot mode according to a preset trigger time, that is, to continuously complete two single-shot modes or to continuously complete multiple single-shot modes. For example, when the user triggers the button switch 601 within 1 second, the water gun 10 operates in single-shot mode; when the user triggers the button switch 601 within 1 to 2 seconds, the water gun 10 operates in double-shot mode; and when the user triggers the button switch 601 within 4 to 5 seconds, the water gun 10 operates in five-shot mode.

[0047] It should be noted that the first direction X can be the axial direction of the barrel 1, and the second direction Y can be the radial direction of the barrel 1. The second direction Y intersects with the first direction X; for example, the second direction Y is perpendicular to the first direction X. During the water filling process, the water pump 20 is turned on. During firing, the water pump 20 can be set to either off or on.

[0048] In this example implementation, refer to Figures 1-4 As shown, the gun barrel 1 can be configured as a split structure. For example, the gun barrel 1 may include a water spray tube 11 and a fixed tube 12. The fixed tube 12 is connected to the water spray tube 11. The central axis of the fixed tube 12 and the central axis of the water spray tube 11 are located on the same straight line, so that the water spray tube 11 and the fixed tube 12 are connected sequentially in the first direction X.

[0049] The water spray tube 11 has two open ends arranged opposite each other in the first direction X. One of the open ends is configured as a conical nozzle, which is the water gun nozzle 111, so that one end of the tube 1 is configured as the water gun nozzle 111, and the end of the water spray tube 11 away from the fixed tube 12 is the water gun nozzle 111. The conical structure of the end of the water spray tube 11 away from the fixed tube 12 facilitates the configuration of a water gun nozzle 111 with a smaller diameter.

[0050] The fixed cylinder 12 has an open end and a fixed end 122 that are oppositely arranged in the first direction X. The other open end of the water spray tube 11 is inserted into the open end of the fixed cylinder 12 and fixedly connected. The end of the fixed cylinder 12 away from the water spray tube 11 is the fixed end 122, so that the gun barrel 1 has a water gun nozzle 111 and a fixed end 122 that are oppositely arranged. The gun barrel 1 is set as a split structure, which facilitates the installation of the entire water gun 10.

[0051] Of course, in some other exemplary embodiments of this disclosure, the gun barrel 1 can be configured as an integral structure, that is, the water spray barrel 11 and the fixed barrel 12 are integrally molded structures connected together, that is, the water spray barrel 11 and the fixed barrel 12 can be formed by the same manufacturing process; or the water spray barrel 11 and the fixed barrel 12 can be a separate molded structure connected together, that is, the water spray barrel 11 and the fixed barrel 12 can be separately molded and then connected together.

[0052] Reference Figures 1-4 As shown, a variable volume water storage tank 112 is provided inside the gun barrel 1. Specifically, the variable volume water storage tank 112 is located inside the water spray tube 11. The variable volume water storage tank 112 is used to store water, and the water in the variable volume water storage tank 112 can be sprayed out from the water gun nozzle 111.

[0053] The barrel 1 has a water supply hole 113 on its wall. The water supply hole 113 is used to connect the water pump 20. Specifically, the water supply hole 113 is provided on the water spray tube 11. A connecting tube 13 is connected to the water supply hole 113. The connecting tube 13 can be connected to the water inlet pipe. A sealing ring is provided between the connecting tube 13 and the water inlet pipe. The sealing ring makes the connecting tube 13 and the water inlet pipe sealed.

[0054] The water supply hole 113 can be used to connect the water pump 20, so that the water pump 20 can pump water from the water source to the variable volume water storage tank 112.

[0055] A water passage area 114 can be connected between the variable volume water storage tank 112 and the water gun nozzle 111. The diameter of the variable volume water storage tank 112 can be larger than the diameter of the water passage area 114. For example, a step can be set on the inner wall of the water spray tube 11 to form variable volume water storage tanks 112 and water passage areas 114 with different diameters. The step can also restrict the movement of the pull tube 21.

[0056] The water passage zone 114 can be set in a cone shape, with the cross-sectional area of ​​the water passage zone 114 being larger the closer it is to the variable volume water storage tank 112. Alternatively, a water passage trough can be set on the side wall of the water passage zone 114 so that water can flow through the water passage zone 114 to the water gun nozzle 111 for spraying.

[0057] In some exemplary embodiments of this disclosure, reference is made to Figures 1-4 As shown, the second elastic element 4 can be a compression spring, and the second elastic element 4 is located between the driving end 222 and the first pull-out end 2111. When the water pushes the pull-out tube 21 to move along the first direction X towards the fixed end 122, pressure will be applied to the second elastic element 4, so that the second elastic element 4 is compressed.

[0058] Of course, in some other exemplary embodiments of this disclosure, the pull tube 21 has a second pull end 2121 disposed opposite to the first pull end 2111 in the first direction X, and the second elastic member 4 can be a tension spring, the second elastic member 4 being located between the drive end 222 and the second pull end 2121; when water pushes the pull tube 21 to move along the first direction X toward the fixed end 122, a pulling force is applied to the second elastic member 4, causing the second elastic member 4 to be stretched.

[0059] In some exemplary embodiments of this disclosure, the first elastic element 3 can be a compression spring, and the stiffness coefficient of the first elastic element 3 is greater than that of the second elastic element 4, so that the minimum elastic force generated by the first elastic element 3 is greater than the maximum elastic force generated by the second elastic element 4. Alternatively, it can be said that the force required for the first elastic element 3 to deform a unit length is greater than the force required for the second elastic element 4 to deform a unit length, i.e., the first elastic element 3 is stiffer than the second elastic element 4.

[0060] In this example implementation, refer to Figures 1-4 As shown, the pull-out component 2 is disposed inside the gun barrel 1. The pull-out component 2 may include a pull-out cylinder 21 and a movable rod 22 connected along the first direction X, and the movable rod 22 is slidably connected to the pull-out cylinder 21, that is, the movable rod 22 and the pull-out cylinder 21 can slide relative to each other.

[0061] The end of the pull-out tube 21 near the variable volume water storage tank 112 is the first pull-out end 2111. The first pull-out end 2111 is sealed and slidably fitted to the gun barrel 1 to form the variable volume water storage tank 112. The movable rod 22 moves along the first direction X to open or close the water gun nozzle 111.

[0062] It should be noted that the variable volume water storage tank 112 changes its volume by sliding the first pull-out end 2111 inside the gun barrel 1.

[0063] Specifically, the pull-out tube 21 and the gun barrel 1 are arranged on the same central axis. The pull-out tube 21 is located on the side of the variable volume water storage tank 112 near the fixed end 122. The end of the pull-out tube 21 near the variable volume water storage tank 112 is the first pull-out end 2111. The first pull-out end is sealed to the gun barrel 1. For example, a first sealing ring 71 can be provided on the outer circumferential surface of the end of the pull-out tube 21 near the variable volume water storage tank 112. The first sealing ring 71 seals the end of the pull-out tube 21 near the variable volume water storage tank 112 to the gun barrel 1, preventing water in the variable volume water storage tank 112 from flowing out of the variable volume water storage tank 112 through the gap between the pull-out tube 21 and the gun barrel 1.

[0064] In some exemplary embodiments of this disclosure, reference is made to Figures 1-4As shown, the pull-out cylinder 21 may include a first cylinder 211 and a second cylinder 212. The first cylinder 211 is coaxially fitted inside the water spray cylinder 11. Specifically, the first cylinder 211 may include a first sub-cylinder and a second sub-cylinder. The end of the first sub-cylinder near the variable volume water storage tank 112 is substantially flush with and connected to the end of the second sub-cylinder near the variable volume water storage tank 112. The first sub-cylinder is sealed and slidably fitted to the water spray cylinder 11, and the second sub-cylinder is disposed inside the first sub-cylinder. The inner surface of the second sub-cylinder is sealed and slidably fitted to the movable rod 22. A portion of the second elastic member 4 may be located between the first sub-cylinder and the second sub-cylinder, that is, the second elastic member 4 is sleeved outside the second sub-cylinder but located inside the first sub-cylinder.

[0065] At least a portion of the second cylinder 212 is disposed within the first cylinder 211. For example, the entire second cylinder 212 may be disposed within the first cylinder 211, or only a portion of the second cylinder 212 may be disposed within the first cylinder 211. The second cylinder 212 is fixed within the first cylinder 211, and the second cylinder 212 moves together with the first cylinder 211 along the first direction X.

[0066] The second cylinder 212 is provided with a fixed surface. The end of the first elastic member 3 away from the fixed end 122 is fixed to the fixed surface. The second cylinder 212 is a positioning part 212a. That is, the end of the second cylinder 212 near the movable rod 22 impacts the movable rod 22 to make the movable rod 22 close the water gun nozzle 111.

[0067] The second cylinder 212 can be the second pull-out end 2121, and the inner cylinder of the second cylinder 212 forms a guide through hole 213.

[0068] Near the end of the firing cycle, the first elastic element 3 applies a spring force to the pull-out cylinder 21, causing the second cylinder 212 to abut against the movable rod 22. Under the action of the spring force, the movable rod 22 and the second cylinder 212 move towards the water gun nozzle 111, causing the movable rod 22 to close the water gun nozzle 111. The second cylinder 212 can apply a spring force evenly to the periphery of the movable rod 22, making the force on the movable rod 22 more uniform and avoiding uneven force on the movable rod 22, which could cause it to tilt and thus jam.

[0069] The first pull-out end 2111 is provided with a through hole 213, and the inner cylinder of the second sub-cylinder is a through hole 213. The diameter of the through hole 213 is smaller than the diameter of the inner cylinder surface of the pull-out cylinder 21.

[0070] The movable rod 22 and the pull-out cylinder 21 are arranged on the same central axis, so that the movable rod 22 and the gun barrel 1 are also arranged on the same central axis. The movable rod 22 has a sealing end 223 and a driving end 222 arranged opposite to each other. The sealing end 223 is used to open or close the water gun nozzle 111. The sealing end 223 is slidably disposed in the water passage area 114. When filling with water, the sealing end 223 slides from the first position to the second position to open the water gun nozzle 111; when spraying water, the sealing end 223 slides from the second position to the first position to close the water gun nozzle 111. For example, the sealing end 223 can be... The part 223 is provided with a second sealing ring 72, which seals the connection between the movable rod 22 and the portion of the water passage 114 near the water gun nozzle 111, thereby closing the water gun nozzle 111 and preventing water from flowing through the gap between the movable rod 22 and the portion of the water passage 114 near the water gun nozzle 111 to the water gun nozzle 111, thus affecting the sealing effect of the variable volume water storage tank 112. The second sealing ring 72 moves with the sealing end 223 to the portion of the water passage 114 near the variable volume water storage tank 112, thereby opening the water gun nozzle 111. The drive end 222 is slidably disposed inside the pull-out cylinder 21.

[0071] That is, the first position can be the position where the sealing end 223 closes the water gun nozzle 111, and the second position can be the position where the sealing end 223 opens the water gun nozzle 111. (Refer to...) Figure 1 The first position is near the water gun nozzle 111, for reference. Figure 3 The second position is close to the variable volume water storage tank 112.

[0072] Furthermore, during launch, the cross-sectional area of ​​the water passage gap formed by the sealed end 223 and the portion of the water passage area 114 near the variable volume water storage tank 112 is greater than or equal to the cross-sectional area of ​​the water gun nozzle 111. This allows the water in the variable volume water storage tank 112 to be squeezed from the water passage gap to the water gun nozzle 111, and the amount of water squeezed out is greater than or equal to the amount of water sprayed from the water gun nozzle 111, thus ensuring that the water gun 10 can launch the water bullet completely in the water spraying state.

[0073] Specifically, refer to Figures 1-4As shown, the movable rod 22 may include a rod portion 221, a driving end 222, and a sealing end 223. The rod portion 221 extends through the through hole 213, from the pull-out cylinder 21 to the through hole 213, and extends into the variable volume water storage tank 112. The driving end 222 is located inside the pull-out cylinder 21 and is connected to the end of the rod portion 221 near the first elastic member 3, that is, the driving end 222 is connected to the end of the rod portion 221 near the fixed end 122. The diameter of the driving end 222 is larger than the diameter of the rod portion 221, so that the pull-out cylinder 21 and the movable rod 22 are slidably connected, so that the movable rod 22 cannot be dislodged from the through hole 213, so that the movable rod 22 is connected to the pull-out cylinder 21, but the movable rod 22 can still move in the first direction X inside the pull-out cylinder 21.

[0074] The diameter of the sealing end 223 is also larger than the diameter of the rod 221, so that water can generate water pressure on the sealing end 223, preventing the sealing end 223 from opening the water gun nozzle 111 when filling with water.

[0075] The side wall of the water passage 114 near the water gun nozzle 111 forms an abutment surface, which can be set as a conical surface to facilitate the smooth flow of water from the nozzle.

[0076] The end face of the sealing end 223 near the water gun nozzle 111 can also be configured as a conical surface. Furthermore, the closer this end face is to the water gun nozzle 111, the smaller its cross-section along the second direction Y becomes. For example, if the abutment surface is a conical surface, this end face is also a conical surface; if the abutment surface is a pyramidal surface, this end face is also a pyramidal surface. This ensures that the end face of the sealing end 223 near the water gun nozzle 111 and the abutment surface can achieve a good fit.

[0077] In some exemplary embodiments of this disclosure, reference is made to Figures 1-4 As shown, the water gun 10 may also include a limiting structure 5, which is located inside the gun barrel 1 and is used to limit the movable rod 22 and the pull tube 21.

[0078] Specifically, the limiting structure 5 may include a limiting rod 51, with a first elastic member 3 sleeved outside the limiting rod 51. The limiting rod 51 guides the first elastic member 3, preventing it from tilting during compression and rebound. The limiting rod 51 is positioned inside the barrel 1 along a first direction X, with its axial direction parallel to the barrel 1. The limiting rod 51 may be coaxial with the barrel 1. Specifically, the limiting rod 51 may include a first segment 511 and a second segment 512 connected sequentially along the first direction X. The end of the first segment 511 facing away from the second segment 512 is connected to a fixed end 122. The second pull-out end 2121 is provided with a guide hole 213, through which the second segment 512 passes. The diameter of the first segment 511 is larger than the diameter of the second segment 512, creating a stepped surface at the connection between the first segment 511 and the second segment 512. The first section 511 is used to limit the pull-out cylinder 21, and the end face of the pull-out cylinder 21 abuts against the stepped surface formed by the first section 511 and the second section 512 to achieve the limitation. The second section 512 is used to limit the movable rod 22, and the movable rod 22 abuts against the end face of the second section 512 to achieve the limitation.

[0079] Of course, in some other exemplary embodiments of this disclosure, reference is made to Figure 5 As shown, the water gun 10 may also include a limiting structure 5, which is located inside the gun barrel 1 and is used to limit the pull tube 21.

[0080] Specifically, the limiting structure 5 may include a limiting rod 51, with a first elastic member 3 sleeved outside the limiting rod 51. The limiting rod 51 guides the first elastic member 3, preventing it from tilting during compression and rebound. The limiting rod 51 is disposed inside the barrel 1 along the first direction X, with its axial direction parallel to the axial direction of the barrel 1. The limiting rod 51 may be coaxial with the barrel 1. Specifically, the limiting rod 51 may include a first segment 511 extending along the first direction X, but does not include a second segment 512. One end of the first segment 511 is connected to the fixed end 122. The first segment 511 is used to limit the pull-out tube 21, with the end face of the pull-out tube 21 abutting against the end face of the first segment 511 to achieve the limiting.

[0081] Alternatively, the limit rod 51 can be made into a hollow tube to reduce weight.

[0082] In some exemplary embodiments of this disclosure, the water gun 10 may further include a positioning part 212a, which is disposed inside the pull tube 21. The positioning part 212a is used to impact the movable rod 22 to achieve the closure of the movable rod 22 on the water gun nozzle 111. (Refer to...) Figure 4 As shown, when the launch is near completion, the positioning part 212a impacts the movable rod 22 under the force of the first elastic member 3 to achieve a seal between the movable rod 22 and the water passage area 114.

[0083] In some exemplary embodiments of this disclosure, the water gun 10 may further include a water pump 20 connected to the water supply port 113. The water pump 20 may be disposed outside the gun barrel 1. The water pump 20 may be an integrated electric water pump 20.

[0084] The water pump 20 can be turned on or off by the controller. This design makes the control of the water pump 20 more flexible. For example, the water pump 20 can be turned on after a delay of about 0.3 seconds.

[0085] The specific work process is as follows: Initial state, refer to... Figure 1 As shown, the sealing end 223 of the movable rod 22 seals the part of the water passage 114 near the water gun nozzle 111, closing the water gun nozzle 111.

[0086] The water pump 20 is turned on to fill the tank with water. The water pump 20 pumps water to the connecting tube 13 and flows to the variable volume water storage tank 112. As the water volume in the variable volume water storage tank 112 increases, the water pressure will push the pull tube 21 to move along the first direction X towards the fixed end 122, thereby increasing the volume of the variable volume water storage tank 112. At the same time, the pull tube 21 will apply pressure to the first elastic element 3, and the first elastic element 3 will generate elastic force. At the same time, the pull tube 21 will also apply force to the second elastic element 4, and the second elastic element 4 will generate elastic force. In addition, since the water will also exert pressure on the movable rod 22, and the sealing end 223 of the movable rod 22 has friction with the gun barrel 1, the phenomenon at the beginning of filling with water is that the pull tube 21 moves towards the fixed end 122, the movable rod 22 remains stationary, and the water gun nozzle 111 is closed.

[0087] During the water filling process, the sum of the pressure F2 (to the right in the first direction X) of the water flow provided by the water pump 20 on the sealing end 223 and the frictional force f2 (to the right in the first direction X) of the barrel 1 on the sealing end 223 is greater than the sum of the elastic force Fb (to the left in the first direction X) generated by the second elastic element 4 and the frictional force f1 (to the left in the first direction X) of the pull tube 21 on the movable rod 22, so as to keep the sealing end 223 sealed at the water gun nozzle 111 so as to fill the variable volume water storage tank 112 with water; the specific formula relationship is: F2+f2>Fb+f1.

[0088] During the water filling process, the state of the pull-out cylinder 21 is as follows: the pressure F1 (to the left in the first direction X) of the water flow provided by the water pump 20 on the pull-out cylinder 21 is greater than the sum of the elastic force Ft (to the right in the first direction X) generated by the first elastic element 3, the elastic force Fb (to the right in the first direction X) generated by the second elastic element 4, the pressure F2 (to the right in the first direction X) of the water flow provided by the water pump 20 on the sealing end 223, the frictional force f1 (to the right in the first direction X) of the pull-out cylinder 21 on the movable rod 22, the frictional force f2 (to the right in the first direction X) of the gun barrel 1 on the sealing end 223, and the frictional force f3 (to the right in the first direction X) of the pull-out cylinder 21 on the gun barrel 1, so that the water flow continuously pushes the pull-out cylinder 21 to move closer to the fixed end 122 to realize the filling of the variable volume water storage tank 112; the specific formula relationship is: F1>Fb+Ft+F2+f1+f2+f3.

[0089] Water pump 20 operates continuously, refer to Figure 2 As shown, when the first cylinder 211 of the pull-out cylinder 21 hits the movable rod 22, the water pressure will push the pull-out cylinder 21 and the movable rod 22 together to move along the first direction X towards the fixed end 122.

[0090] When the tube is nearly full of water, the pull-out tube 21 abuts against the movable rod 22, that is, when the first pull-out end 2111 abuts against the drive end 222. The pull-out tube 21 and the movable rod 22 move together toward the fixed end 122. The frictional force f1 between the pull-out tube 21 and the movable rod 22 can be ignored. The pressure F1 (to the left in the first direction X) of the water flow provided by the water pump 20 on the pull-out tube 21 is greater than the elastic force Ft (to the right in the first direction X) generated by the first elastic element 3 and the elastic force Fb (to the right in the first direction X) generated by the second elastic element 4. The sum of the pressure F2 (to the right in the first direction X) of the water flow provided by the water pump 20 on the sealing end 223, the frictional force f2 (to the right in the first direction X) of the gun barrel 1 on the sealing end 223, and the frictional force f3 (to the right in the first direction X) of the pull-out cylinder 21 on the gun barrel 1, causes the water flow to continuously push the pull-out cylinder 21 and the movable rod 22 to continuously move closer to the fixed end 122, thereby achieving the maximum water storage capacity of the variable volume water storage tank 112; the specific formula relationship is: F1>Fb+Ft+F2+f2+f3. When the pull-out cylinder 21 abuts against the movable rod 22, the deformation of the second elastic element 4 is at its maximum, and the elastic force generated by the second elastic element 4 pushes the movable rod 22 to move towards the fixed end 122, thereby causing the water gun nozzle to open.

[0091] Reference Figure 3 As shown, the water gun 10 is in the firing state when it is full of water. At this time, the variable volume water storage tank 112 is full of water, the water gun nozzle 111 is opened, and the pull tube 21 and the movable rod 22 are separated and are no longer in contact.

[0092] During firing, the water gun nozzle 111 opens. For the sealed end 223, the pressure F2 of the water flow provided by the water pump 20 on the sealed end 223 is 0, and the frictional force f2 of the barrel 1 on the sealed end 223 is 0. The sealed end 223 is subjected to the elastic force Fb (to the left in the first direction X) generated by the second elastic element 4 and the frictional force f1 (to the left in the first direction X) of the pull-out cylinder 21 on the movable rod 22. The specific formula relationship is: Fb + f1 > 0. This ensures that the sealed end 223 does not seal the water gun nozzle 111, thus ensuring the unobstructed flow of the water gun nozzle 111.

[0093] During the firing process, for the pull-out tube 21, the sum of the elastic force Ft (to the right in the first direction X) generated by the first elastic element 3 and the elastic force Fb (to the right in the first direction X) generated by the second elastic element 4 is greater than the sum of the water pressure F1' (to the left in the first direction X) exerted by the water in the variable volume water storage tank 112 on the pull-out tube 21, the frictional force f3 (to the left in the first direction X) exerted by the pull-out tube 21 on the gun barrel 1, and the frictional force f1 (to the left in the first direction X) exerted by the pull-out tube 21 on the movable rod 22, so that the first elastic element 3 pushes the pull-out tube 21 to move closer to the water gun nozzle 111 to achieve water spraying; the specific formula relationship is: Ft+Fb>F1'+f3+f1.

[0094] Reference Figure 4 As shown, near the end of the firing process, the positioning part 212a of the pull-out tube 21 impacts the driving end 222 of the movable rod 22, applying a spring force in the first direction X to the movable rod 22. This causes the movable rod 22 to move along with the pull-out tube 21 towards the water gun nozzle 111, closing the water gun nozzle 111. All the water in the variable-volume water storage tank 112 is then ejected, completing the water spraying process. During this process, the water column remains unified, travels a long distance, is less prone to dispersion, has a strong impact, and produces a large volume of water bullets with a long-range firing effect.

[0095] When the positioning part 212a of the pull-out cylinder 21 abuts against the driving end 222, the pull-out cylinder 21 and the movable rod 22 move together closer to the water gun nozzle 111. The frictional force f1 between the pull-out cylinder 21 and the movable rod 22 can be ignored. The sum of the elastic force Ft (to the right in the first direction X) generated by the first elastic element 3 and the elastic force Fb (to the right in the first direction X) generated by the second elastic element 4 is greater than the sum of the water pressure F1' (to the left in the first direction X) of the water in the variable volume water storage tank 112 on the pull-out cylinder 21 and the frictional force f3 (to the left in the first direction X) of the pull-out cylinder 21 on the gun barrel 1, so that the first elastic element 3 pushes the movable rod 22 to move and the sealing end 223 closes the water gun nozzle 111. The specific formula relationship is: Ft+Fb>F1'+f3.

[0096] When the sealing end 223 closes the water gun nozzle 111, a frictional force f2 is generated again between the gun barrel 1 and the sealing end 223. The sum of the elastic force Ft generated by the first elastic element 3 (to the right in the first direction X) and the elastic force Fb generated by the second elastic element 4 (to the right in the first direction X) is greater than the sum of the water pressure F1' (to the left in the first direction X) of the water in the variable volume water storage tank 112 on the pull tube 21, the frictional force f3 (to the left in the first direction X) of the pull tube 21 on the gun barrel 1, and the frictional force f2 (to the left in the first direction X) of the gun barrel 1 on the sealing end 223, so as to ensure that the sealing end 223 closes the water gun nozzle 111; the specific formula relationship is: Ft+Fb>F1'+f3+f2.

[0097] After the water gun nozzle 111 is closed, it returns to the initial state, and the sealing end 223 seals the water gun nozzle 111.

[0098] When the water tank is being changed or in other situations, if air enters the water supply pipe of the water gun 10, the pressure in the water supply pipe is less than the pressure of the first elastic element 3 because air can be compressed. This prevents the pull tube 21 from moving to the fixed end 122 to the limit position before the water gun nozzle 111 is opened to complete the first shot of the water gun 10. In other words, if the water stored in the variable volume water storage tank 112 is insufficient, the water volume of the first shot will be insufficient.

[0099] In some exemplary embodiments of this disclosure, the water gun 10 may further include a one-way vent valve 6, which is connected to the water supply port 113. Specifically, the connecting tube 13 is configured as a three-way pipe, with one end connected to the water supply port 113, the other end connected to the inlet pipe, and the third end connected to the one-way vent valve 6. The one-way vent valve 6 allows air to be released from the pipe connected to the water supply port 113, preventing air from flowing into the water gun 10 and avoiding the problem of insufficient water volume in the first water jet.

[0100] Specifically, the one-way exhaust valve 6 may include a housing 61, a valve core 62, a third elastic element 63, and a sealing element 64. The housing 61 has a first opening and a second opening, the first opening being connected to the water supply hole 113. The valve core 62 is disposed inside the housing 61, and a vent hole 621 is provided on the valve core 62. The diameter of the vent hole 621 is less than or equal to that of a millimeter, for example, the diameter of the vent hole 621 may be 0.2 mm. The vent hole 621 remains open throughout the process, ensuring that when air reaches the position of the one-way exhaust valve 6, the pressure can be released by the vent hole 621 to a level less than the elastic force of the third elastic element 63, ensuring rapid and smooth exhaust. The third elastic element 63 is disposed between the valve core 62 and the housing 61; for example, a stepped surface may be provided on the inner wall of the housing 61, and the third elastic element 63 may be disposed between the valve core 62 and the stepped surface. The sealing element 64 is located on the inner wall of the housing 61. When the water gun 10 is in the pre-firing state, the third elastic element 63 extends, and the valve core 62 does not contact the sealing element 64, so that the water flow squeezes the air out. When the water gun 10 is in the firing state, the water flow squeezes the third elastic element 63 to compress, so that the valve core 62 contacts the sealing element 64 and seals it.

[0101] Alternatively, the second opening can be used to connect to a water supply source. For example, the second opening can be connected to a water supply source through a water pipe, so that the water discharged through the vent 621 can flow to the water supply source for reuse, thereby saving water resources.

[0102] Based on the same inventive concept, this disclosure provides a water spraying device, referring to... Figure 7 As shown, the water spraying device may include a water gun 10, a cleaning gun 30, and a water pump 20; the water gun 10 is any of the water guns described above, and the specific structure of the water gun 10 has been described in detail above, so it will not be repeated here; the cleaning gun 30 has a cleaning nozzle; the water pump 20 is connected to the cleaning gun 30 and the water gun 10; the water pump 20 is used to connect to a water supply source.

[0103] In this example embodiment, the water spray device may include a housing 50, which may include a main body 501 and a handle 502. Both the main body 501 and the handle 502 are hollow structures. The handle 502 is connected to the main body 501, and the receiving cavity of the handle 502 is also in communication with the receiving cavity of the main body 501. The main body 501 may be elongated, and the handle 502 may be U-shaped. One end of the main body 501 has two openings.

[0104] A push-button switch 601 can be installed at the connection between the handle 502 and the main body 501. The push-button switch 601 and the power switch 602 of the water pump 20 can be positioned opposite each other. The push-button switch 601 can control the power switch 602 of the water pump 20, thereby turning the water pump 20 on or off. The water pump 20 can be an electromechanical integrated electric water pump 20.

[0105] The cleaning gun 30 may include a connecting tube 301 and a nozzle 302. One end of the connecting tube 301 is connected to the nozzle 302, and the nozzle 302 can extend out of the main body 501 through an opening on the main body 501.

[0106] The standard water inlet interface is provided on the handle 502, through which an external water source can be connected.

[0107] The water gun 10 can be located on the side of the cleaning gun 30 near the handle 502, for example, the water gun 10 can be located on the underside of the cleaning gun 30. A portion of the water nozzle 111 of the water gun 10 can extend outside the main body 501 through another opening on the main body 501.

[0108] The water pump 20 is used to connect to an external water source, in which case the external water source is the water supply source. Alternatively, the water spraying device may also include a liquid storage tank 80, which is connected to the water pump 20. In this case, the liquid storage tank 80 is the water supply source. The liquid storage tank 80 is also connected to the cleaning nozzle and is used to supply cleaning fluid to the cleaning gun 30. The liquid storage tank 80 is provided with an air intake structure for air to enter, so as to ensure the air pressure balance inside and outside the liquid storage tank 80, allowing the liquid inside the liquid storage tank 80 to flow out smoothly.

[0109] When the water gun 10 is working, tap water can be stored in the liquid storage tank 80; when the cleaning gun 30 of the water spray device is working, detergent can be stored in the liquid storage tank 80, that is, the liquid storage tank 80 can be used as a foam pot, so that the cleaning gun 30 can realize the cleaning function, such as washing cars, cleaning floors, building exterior surfaces, etc.

[0110] Of course, in some other exemplary embodiments of this disclosure, the liquid storage tank 80 can be configured as two storage cavities, namely a first storage cavity and a second storage cavity. The first storage cavity stores tap water to provide a water source for the first water spraying device. The second storage cavity stores detergent to provide detergent for the cleaning gun 30.

[0111] The water spraying device may also include a water path switching mechanism 40, which is connected to the water pump 20, the cleaning gun 30, and the water gun 10. The water path switching mechanism 40 is used to switch the connection of the water pump 20 to the cleaning gun 30 or to the water gun 10. In this case, the specific structure of the water path switching mechanism 40 is as follows: In some exemplary embodiments of this disclosure, reference is made to Figure 8 As shown, the water circuit switching mechanism 40 may include a water outlet structure 41, a water outlet valve core 42, and an adjustment part 43. The water outlet structure 41 is provided with a water outlet chamber 411, and the water outlet structure 41 is provided with a main water inlet channel (not shown in the figure), a first water outlet channel 413, and a second water outlet channel 414 connected to the water outlet chamber 411. The main water inlet channel is used to connect to the water outlet of the water pump 20, the first water outlet channel 413 is connected to the water gun 10, and the second water outlet channel 414 is connected to the cleaning gun 30. The water outlet valve core 42 is located in the water outlet chamber 411 and may include a first water outlet sealing part 422 and a second water outlet sealing part 423. The adjustment part 43 is used to drive the water outlet valve core 42 to move so that the first water outlet sealing part 422 seals the first water outlet channel 413 and the second water outlet channel 414 is open, or the second water outlet sealing part 423 seals the second water outlet channel 414 and the first water outlet channel 413 is open. The first water outlet sealing part 422 and the second water outlet sealing part 423 can be sealed by a plane.

[0112] Optionally, the water path switching mechanism 40 is also connected to an external water source and a storage tank 80; the water path switching mechanism 40 is also used to switch the connection of the external water source to the water pump 20 or the connection of the storage tank 80 to the water pump 20, that is, both the external water source and the storage tank 80 are water sources for the spray device. In this case, the specific structure of the water path switching mechanism 40 is as follows: In some exemplary embodiments of this disclosure, reference is made to Figure 8 As shown, the water circuit switching mechanism 40 may further include an inlet structure 44 and an inlet valve core 45; the inlet structure 44 is provided with an inlet chamber 441, and the inlet structure 44 is provided with a main outlet channel (not shown in the figure), a first inlet channel (not shown in the figure), and a second inlet channel 444 connected to the inlet chamber 441. The main outlet channel is used to connect to the inlet of the water pump 20, the first inlet channel is connected to the storage tank 80, and the second inlet channel 444 is connected to an external water source; the inlet valve core 45 is provided in the inlet chamber 441, and the inlet valve core 45 includes a first inlet sealing part 452 and a second inlet sealing part 453; the adjusting part 43 is also used to drive the outlet valve core 42 to move so that the first inlet sealing part 452 seals the first inlet channel and the second inlet channel 444 is open, or the second inlet sealing part 453 seals the second inlet channel 444 and the first inlet channel is open. The first water inlet sealing part 452 and the second water inlet sealing part 453 can be sealed by a conical surface.

[0113] In some exemplary embodiments of this disclosure, reference is made to Figure 8As shown, the water outlet structure 41 is provided with a first through hole 415, and the adjustment part 43 includes a rotating shaft 431 and a first cam 432; the rotating shaft 431 is rotatably and sealed in the first through hole 415; the first cam 432 is connected to the rotating shaft 431, and the first cam 432 rotates to drive the water outlet valve core 42 to move.

[0114] The inlet structure 44 is connected to the outlet structure 41 to form a common wall. A third through hole is provided on the common wall. The adjustment part 43 may also include a connecting shaft 433 and a second cam 434. The connecting shaft 433 is connected to the end of the first cam 432 away from the rotating shaft 431. The connecting shaft 433 is rotatably and sealingly fitted in the third through hole. The second cam 434 is connected to the connecting shaft 433. The second cam 434 rotates to drive the inlet valve core 45 to move.

[0115] In some exemplary embodiments of this disclosure, a battery pack 70 is provided on the side of the water pump 20 away from the cleaning gun 30. The battery pack 70 is electrically connected to the water pump 20 and can supply power to the water pump 20, so that the water spraying device does not need to be connected to an external power source.

[0116] The terms "parallel" and "perpendicular" used in this application can mean not only perfectly parallel and perpendicular, but also have a certain margin of error; for example, if the angle between the two is greater than or equal to 0° and less than or equal to 5°, they are considered to be parallel; if the angle between the two is greater than or equal to 85° and less than or equal to 95°, they are considered to be perpendicular.

[0117] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A water gun, characterized in that, include: The gun barrel (1) has a water gun nozzle (111) and a fixed end (122) arranged opposite to each other in a first direction. A variable volume water storage tank (112) is provided inside the gun barrel (1). A water supply hole (113) is provided on the wall of the gun barrel (1). The water supply hole (113) is connected to the variable volume water storage tank (112). The water supply hole (113) is used to connect to a water pump (20). A pull-out component (2) is disposed inside the gun barrel (1). The pull-out component (2) includes a pull-out tube (21) and a movable rod (22). The movable rod (22) is slidably connected to the pull-out tube (21) along a first direction. The movable rod (22) has a driving end (222) and a sealing end (223) arranged opposite to each other in the first direction. The driving end (222) is located inside the pull-out tube (21). The end of the pull-out tube (21) near the variable volume water storage tank (112) is a first pull-out end (2111). The first pull-out end (2111) is sealed and slidably fitted to the gun barrel (1) to form the variable volume water storage tank (112). The movable rod (22) moves along the first direction to open or close the water gun nozzle (111) with the sealing end (223). The first elastic element (3) is disposed between the pull tube (21) and the fixed end (122) along the first direction; The second elastic element (4) is disposed in the pull tube (21) along the first direction and is located between the drive end (222) and the pull tube (21). The second elastic element (4) causes the movable rod (22) to open the water gun nozzle (111).

2. The water gun according to claim 1, characterized in that, The second elastic element (4) is a compression spring, and the second elastic element (4) is located between the driving end (222) and the first pull-out end (2111); Alternatively, the pull tube (21) has a second pull end (2121) disposed opposite to the first pull end (2111) in the first direction, the second elastic element (4) is a tension spring, and the second elastic element (4) is located between the drive end (222) and the second pull end (2121).

3. The water gun according to claim 2, characterized in that, The first elastic element (3) is a compression spring. The stiffness coefficient of the first elastic element (3) is greater than that of the second elastic element (4) so ​​that the minimum elastic force generated by the first elastic element (3) is greater than that generated by the second elastic element (4).

4. The water gun according to claim 2, characterized in that, The water gun (10) also includes: A limiting structure (5) is provided inside the gun barrel (1), and the limiting structure (5) is used to limit the movable rod (22) and the pull tube (21); Alternatively, the limiting structure (5) is used to limit the pull tube (21).

5. The water gun according to claim 4, characterized in that, The limiting structure (5) includes a limiting rod (51), the first elastic element (3) is sleeved on the limiting rod (51), and the limiting rod (51) is disposed inside the gun barrel (1) along the first direction; The limiting rod (51) includes a first segment (511) and a second segment (512) connected sequentially along the first direction. The end of the first segment (511) facing away from the second segment (512) is connected to the fixed end (122). The second pull-out end (2121) is provided with a guide through hole (213). The second segment (512) passes through the guide through hole (213). The diameter of the first segment (511) is larger than the diameter of the second segment (512). The first segment (511) is used to limit the pull-out tube (21), and the second segment (512) is used to limit the movable rod (22). Alternatively, the limiting rod (51) includes a first segment (511) extending along the first direction, one end of which is connected to the fixed end (122), and the other end of which is used to limit the pull-out tube (21).

6. The water gun according to claim 5, characterized in that, Initial state: The sealing end (223) is sealed to the water gun nozzle (111); During the water filling process, the state of the sealed end (223) is as follows: the sum of the pressure F2 of the water flow provided by the water pump on the sealed end (223) and the frictional force f2 of the gun barrel (1) on the sealed end (223) is greater than the sum of the elastic force Fb generated by the second elastic element (4) and the frictional force f1 of the pull tube (21) on the movable rod (22), so that the sealed end (223) remains sealed at the water gun nozzle (111) so as to fill the variable volume water storage tank (112) with water; During the water filling process, the state of the pull-out cylinder (21) is as follows: the pressure F1 of the water flow provided by the water pump on the pull-out cylinder (21) is greater than the sum of the elastic force Ft generated by the first elastic element (3), the elastic force Fb generated by the second elastic element (4), the pressure F2 of the water flow provided by the water pump on the sealing end (223), the friction force f1 of the pull-out cylinder (21) on the movable rod (22), the friction force f2 of the gun barrel (1) on the sealing end (223), and the friction force f3 of the pull-out cylinder (21) on the gun barrel (1), so that the water flow continuously pushes the pull-out cylinder (21) to move closer to the fixed end (122) to realize the water filling of the variable volume water storage tank (112); When the first pull-out end (2111) abuts against the drive end (222), the pull-out cylinder (21) and the movable rod (22) move together toward the fixed end (122). The pressure F1 of the water flow provided by the water pump on the pull-out cylinder (21) is greater than the sum of the elastic force Ft generated by the first elastic element (3), the elastic force Fb generated by the second elastic element (4), the pressure F2 of the water flow provided by the water pump on the sealing end (223), the friction force f2 of the gun barrel (1) on the sealing end (223), and the friction force f3 of the pull-out cylinder (21) on the gun barrel (1), so that the water flow continuously pushes the pull-out cylinder (21) and the movable rod (22) to continuously move toward the side closer to the fixed end (122) to achieve the maximum water storage capacity of the variable volume water storage tank (112); During the launch process, the state of the sealed end (223) is as follows: the variable volume water storage tank (112) reaches the maximum water storage capacity, the water gun nozzle (111) is opened, the pressure F2 of the water flow provided by the water pump on the sealed end (223) is 0, the friction force f2 of the gun barrel (1) on the sealed end (223) is 0, and the sealed end (223) is subjected to the elastic force Fb generated by the second elastic element (4) and the friction force f1 of the pull tube (21) on the movable rod (22) to ensure the smooth flow of the water gun nozzle 111; During the firing process, the state of the pull tube (21) is as follows: the sum of the elastic force Ft generated by the first elastic element (3) and the elastic force Fb generated by the second elastic element (4) is greater than the sum of the water pressure F1' of the water in the variable volume water storage tank (112) on the pull tube (21), the friction force f3 of the pull tube (21) on the gun barrel (1), and the friction force f1 of the pull tube (21) on the movable rod (22), so that the first elastic element (3) pushes the pull tube (21) to move closer to the water gun nozzle (111) to achieve water spraying; When the pull-out tube (21) abuts against the drive end (222), the pull-out tube (21) and the movable rod (22) move together toward the water gun nozzle (111). The sum of the elastic force Ft generated by the first elastic element (3) and the elastic force Fb generated by the second elastic element (4) is greater than the sum of the water pressure F1' of the water in the variable volume water storage tank (112) on the pull-out tube (21) and the frictional force f3 of the pull-out tube (21) on the gun barrel (1), so that the first elastic element (3) pushes the movable rod (22) to move and the sealing end (223) closes the water gun nozzle (111). When the sealing end (223) closes the water gun nozzle (111), the frictional force f2 of the gun barrel (1) on the sealing end (223) is generated again. The sum of the elastic force Ft generated by the first elastic element (3) and the elastic force Fb generated by the second elastic element (4) is greater than the sum of the water pressure F1' of the water in the variable volume water storage tank (112) on the pull tube (21), the frictional force f3 of the pull tube (21) on the gun barrel (1), and the frictional force f2 of the gun barrel (1) on the sealing end (223). After the water gun nozzle (111) is closed, it returns to the initial state, and the sealing end (223) is sealed to the water gun nozzle (111).

7. The water gun according to claim 1, characterized in that, The water gun (10) also includes: The positioning part (212a) is located inside the pull tube (21). The positioning part (212a) is used to impact the movable rod (22) to achieve the closure of the movable rod (22) on the water gun nozzle (111). The first elastic element (3) is located between the positioning part (212a) and the fixed end (122).

8. The water gun (10) according to claim 7, characterized in that, The pull-out tube (21) includes: First cylinder (211); The second cylinder (212) is at least partially disposed inside the first cylinder (211). The second cylinder (212) includes the positioning part (212a), which is disposed on the side of the first elastic member (3) near the movable rod (22).

9. The water gun (10) according to claim 1, characterized in that, The first pull-out end (2111) is provided with a through hole (213); the movable rod (22) also includes a rod portion (221), which passes through the through hole (213) so that the movable rod (22) is slidably connected to the pull-out cylinder (21), and the rod portion (221) is sealed to the hole wall of the through hole (213); the driving end (222) is connected to the end of the rod portion (221) near the first elastic member (3); the sealing end (223) is connected to the end of the rod portion (221) away from the first elastic member (3).

10. The water gun (10) according to claim 1, characterized in that, The barrel (1) includes: Water spray tube (11); A fixed cylinder (12) is connected to the water spray cylinder (11), and the central axis of the fixed cylinder (12) and the central axis of the water spray cylinder (11) are located on the same straight line; The end of the water spray tube (11) away from the fixed tube (12) is the water gun nozzle (111), and the end of the fixed tube (12) away from the water spray tube (11) is the fixed end (122); the pull-out end is fitted inside the water spray tube (11), and the other end of the pull-out tube (21) is located inside the fixed tube (12).

11. The water gun according to any one of claims 1 to 10, characterized in that, The water gun (10) also includes: A one-way vent valve (6) is connected to the water supply hole (113).

12. The water gun according to claim 11, characterized in that, The one-way exhaust valve (6) includes: The housing (61) has a first opening and a second opening, the first opening being connected to the water supply hole (113). A valve core (62) is disposed inside the housing (61), and a vent hole is provided on the valve core (62); A third elastic element (63) is disposed between the valve core (62) and the housing (61); A sealing element (64) is provided on the inner wall of the housing (61); when the water gun (10) is in the pre-firing state, the third elastic element (63) extends, and the valve core (62) does not contact the sealing element (64) so ​​that the water flow squeezes the air out; when the water gun (10) is in the firing state, the water flow squeezes the third elastic element (63) to compress so that the valve core (62) contacts the sealing element (64) and seals it.

13. The water gun according to claim 12, characterized in that, The second opening is used to connect to a water supply source.

14. The water gun (10) according to any one of claims 1 to 10, characterized in that, The water gun (10) also includes: A water pump (20) is connected to the water supply hole (113).

15. A water spraying device, characterized in that, include: A cleaning gun with a cleaning nozzle; The water gun (10) is the water gun (10) as described in any one of claims 1 to 13. A water pump (20) is connected to the cleaning gun and the water gun (10), and the water pump (20) is used to connect to a water supply source.

16. The water spraying device according to claim 15, characterized in that, The water pump (20) is used to connect to an external water source, which is the water supply source; And / or, the water spraying device further includes: A liquid storage tank (80) is connected to the water pump (20), and the liquid storage tank (80) is the water supply source; The liquid storage tank (80) is also connected to the cleaning nozzle for providing cleaning fluid to the cleaning gun; the liquid storage tank (80) is provided with an air intake structure for air to enter.

17. The water spraying device according to claim 16, characterized in that, The water spray device also includes: Water circuit switching mechanism (40) is connected to the water pump (20), the cleaning gun and the water gun (10); the water circuit switching mechanism (40) is used to switch the water pump (20) to the cleaning gun or to the water gun (10).

18. The water spraying device according to claim 17, characterized in that, The waterway switching mechanism (40) includes: The water outlet structure (41) has a water outlet cavity (411) inside. The water outlet structure (41) has a main water inlet channel, a first water outlet channel (413) and a second water outlet channel (414) connected to the water outlet cavity (411). The main water inlet channel is used to connect to the outlet of the water pump (20). The first water outlet channel (413) is connected to the water gun (10), and the second water outlet channel (414) is connected to the cleaning gun. The water outlet valve core (42) is disposed in the water outlet chamber (411), and the water outlet valve core (42) includes a first water outlet sealing part (422) and a second water outlet sealing part (423). Adjustment part (43) is used to drive the water outlet valve core (42) to move so that the first water outlet sealing part (422) seals the first water outlet channel (413) and the second water outlet channel (414) is open, or the second water outlet sealing part (423) seals the second water outlet channel (414) and the first water outlet channel (413) is open.

19. The water spraying device according to claim 18, characterized in that, The water path switching mechanism (40) is also connected to the external water source and the liquid storage tank (80); the water path switching mechanism (40) is also used to switch the external water source to the water pump (20) or the liquid storage tank (80) to the water pump (20).

20. The water spraying device according to claim 19, characterized in that, The waterway switching mechanism (40) also includes: The water inlet structure (44) is provided with a water inlet cavity (441) and a main water outlet channel, a first water inlet channel and a second water inlet channel (444) connected to the water inlet cavity (441). The main water outlet channel is used to connect to the water inlet of the water pump (20). The first water inlet channel is connected to the liquid storage tank (80) and the second water inlet channel (444) is connected to the external water source. The inlet valve core (45) is disposed in the inlet chamber (441). The inlet valve core (45) includes a first inlet sealing part (452) and a second inlet sealing part (453). The adjusting part (43) is also used to drive the outlet valve core (42) to move so that the first inlet sealing part (452) seals the first inlet channel and the second inlet channel (444) is open, or the second inlet sealing part (453) seals the second inlet channel (444) and the first inlet channel is open.

Images