Water gun

Abstract

Provided is a water gun that solves the problems of a conventional water gun, which is very time-consuming to use, is prone to finger injuries, and the user's hand gets tired easily when the trigger is pressed for a long time, resulting in a poor user experience. 【Solution means】The water gun includes a casing 11, a labor-saving hook assembly 13, and a trigger 14. The trigger is provided with a self-lock area where a self-lock structure is installed. The first end of the labor-saving hook assembly is located in the self-lock area. When the trigger is pulled, the first end of the labor-saving hook assembly can move within the self-lock area. When the trigger is released, the first end of the labor-saving hook assembly is locked to the self-lock structure to achieve self-locking of the trigger. When the trigger is pulled and released again, the lock between the first end of the labor-saving hook assembly and the self-lock structure is released.

Description

Technical Field

[0001] The present invention relates to the technical field of water guns, and particularly to water guns.

Background Art

[0002] With the improvement of living standards, household high-pressure cleaners are popular among a wide range of households as very effective cleaning tools. A water gun is a main component of a high-pressure cleaner, which is a machine that generates high-pressure water by a power device to a high-pressure plunger pump to clean the surface of an object, and can achieve the purpose of cleaning the surface of the object by peeling off dirt or flushing it away.

[0003] However, the water guns of currently commercially available high-pressure cleaners generally adopt one movable trigger as a switch. Since the water pressure of a high-pressure cleaner reaches at least 50 kg and up to 200 kg or more, it is necessary to overcome a very high-pressure water flow to pull the trigger with the user's finger, which is very time-consuming to use, and the finger is easily injured. Moreover, if the user presses the trigger for a long time, the hand is easily fatigued, and the user experience is poor.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In order to solve the problem that it is very time-consuming to use a conventional water gun, the finger is easily injured, and the hand is easily fatigued if the user presses the trigger for a long time, and the user experience is poor, the present invention provides a water gun.

Means for Solving the Problems

[0005] To solve the above technical problems, one solution adopted in the present invention is to provide a water gun, which includes a casing, a labor-saving hook assembly and a trigger. The labor-saving hook assembly is installed in the casing and is rotatable relative to the casing. A part of the trigger is exposed from the casing and is movable relative to the casing. A self-locking region with a self-locking structure is provided on the trigger. The first end of the labor-saving hook assembly is located in the self-locking region. When the trigger is pulled, the first end of the labor-saving hook assembly moves within the self-locking region. When the trigger is released, the first end of the labor-saving hook assembly is locked by the self-locking structure to realize self-locking of the trigger. When the trigger is pulled and released again, the lock between the first end of the labor-saving hook assembly and the self-locking structure is released.

[0006] In an embodiment, the water gun further includes a shift assembly, which can be switched between a first state and a second state under the action of an external force. When the shift assembly switches to the first state, there is a movable gap between the second end of the labor-saving hook assembly and the shift assembly. The first end of the labor-saving hook assembly moves within the self-locking region. A movable region is further provided on the trigger. When the shift assembly switches to the second state, the second end of the labor-saving hook assembly abuts against the shift assembly so that the first end of the labor-saving hook assembly is located in the movable region. By pulling or releasing the trigger, the first end of the labor-saving hook assembly can move freely within the movable region.

[0007] In one embodiment, a position restricting region is further provided in the trigger, the shift assembly can be switched between a first state, a second state, and a third state under the action of an external force, and when the shift assembly is switched to the third state, the second end of the labor-saving hook assembly abuts against the shift assembly such that the first end of the labor-saving hook assembly is located in the position restricting region, and the first end of the labor-saving hook assembly abuts against the trigger such that the trigger is fixed to the casing.

[0008] In one embodiment, the shift assembly includes a sliding member, a slider, and a slide rail. The slide rail is fixed within the casing, the slider is slidably connected to the slide rail, the sliding member is engaged with the slider and exposed from the casing. A movable groove is provided in the slide rail, the second end of the labor-saving hook assembly is located in the movable groove, and the sliding member can move the slider closer to or away from the second end of the labor-saving hook assembly under the action of an external force, and further switch between the first state, the second state, and the third state. In the first state, there is a movable gap between the second end of the labor-saving hook assembly and the slider, and the second end of the labor-saving hook assembly can move within the movable groove. In the second state and the third state, the second end of the labor-saving hook assembly abuts against the slider.

[0009] In one embodiment, the labor-saving hook assembly includes a contact post, a rotating shaft, a movable hook, and a tension spring. The first end of the labor-saving hook assembly is the movable hook, the second end of the labor-saving hook assembly is the contact post. Both ends of the rotating shaft are movably provided on the inner wall of the casing such that the rotating shaft can rotate around the central axis. The contact post and the movable hook are provided on the side surface of the rotating shaft. One end of the tension spring is connected to the movable hook, and the other end of the tension spring is connected to the inner wall of the casing.

[0010] In one embodiment, the trigger has a concave groove formed therein, and the concave groove is divided into a position regulating region, a movable region, and a self-locking region from top to bottom. The edge of the concave groove in the position regulating region is connected to the edge of the concave groove in the movable region by a smooth corner. The edge of the concave groove in the position regulating region is closer to the movable hook than the edge of the concave groove in the movable region. In the third state, the movable hook abuts against the edge of the concave groove in the position regulating region.

[0011] In one embodiment, the edge of the concave groove in the self-locking region is smoothly connected to the edge of the concave groove in the movable region.

[0012] In one embodiment, the self-locking structure includes an arcuate bayonet and a step, and the step is installed corresponding to the opening of the arcuate bayonet. In the first state, when the trigger is pulled, the movable hook is caught by the arcuate bayonet by the tension spring and the step. When the trigger is released, the movable hook is locked to the arcuate bayonet to realize self-locking of the trigger. When the trigger is pulled and released again, the movable hook is disengaged from the arcuate bayonet by the tension spring and the step, and the lock is released.

[0013] In one embodiment, the step is located on the center line of the arcuate bayonet.

[0014] In one embodiment, the water gun further includes a water suction pipe, a water discharge pipe, a valve body, and a pressure spring. Both the water suction pipe and the water discharge pipe are attached to the casing. One end of the water discharge pipe is connected to one side of the valve body, and the upper end of the water suction pipe is connected to the lower end of the valve body. The lower side of one end of the trigger is pressed against one end of the pressure spring, and the other end of the pressure spring is connected to the upper end of the valve body. When the trigger is pulled, the pressure spring is pushed to drive the valve body so as to communicate the water suction pipe and the water discharge pipe. When the trigger is released, the pressure spring is restored from deformation to drive the valve body so as to close the water suction pipe and the water discharge pipe.

Advantages of the Invention

[0015] The water gun provided by the embodiment according to the present invention has the following advantages compared with the prior art.

[0016] 1. In the water gun provided by the embodiment according to the present invention, a self-locking area is provided on the trigger, a self-locking structure is installed in the self-locking area, the first end of the labor-saving hook assembly is located in the self-locking area, when the trigger is pulled, the first end of the labor-saving hook assembly can move within the self-locking area, when the trigger is released, the first end of the labor-saving hook assembly is locked to the self-locking structure to realize self-locking of the trigger, when the trigger is pulled and released again, the lock between the first end of the labor-saving hook assembly and the self-locking structure is released. Using a conventional water gun is very time-consuming, and it is easy to hurt the fingers. Moreover, when the user presses the trigger for a long time, the hand is easily fatigued, and the user experience is poor. This solves the problem. Through the combination between the labor-saving hook assembly and the trigger, and by further endowing the water gun with a self-locking function, the fatigue of the hand caused by the user pressing the trigger for a long time can be avoided. The user does not need to pull the trigger strongly, and can spray water just by holding the water gun, thereby achieving the purpose of labor saving.

[0017] 2. In the water gun provided by the embodiment according to the present invention, the water gun further includes a shift assembly. The shift assembly can be switched between a first state and a second state under the action of an external force. When the shift assembly is switched to the first state, there is a movable gap between the second end of the labor-saving hook assembly and the shift assembly. The first end of the labor-saving hook assembly moves within the self-locking region, and a movable region is further opened in the trigger. When the shift assembly is switched to the second state, the second end of the labor-saving hook assembly abuts against the shift assembly so that the first end of the labor-saving hook assembly is located in the movable region. By pulling or releasing the trigger, the first end of the labor-saving hook assembly can move freely within the movable region. The user can freely switch between the labor-saving state and the normal state functions. When the user operates and uses it in a short time, the normal state can be selected to spray water, greatly improving the ease of use and practicality of the water gun and enhancing the user experience.

[0018] 3. In the water gun provided by the embodiment according to the present invention, a position restricting region is further opened in the trigger. The shift assembly can be switched between a first state, a second state, and a third state under the action of an external force. When the shift assembly is switched to the third state, the second end of the labor-saving hook assembly abuts against the shift assembly so that the first end of the labor-saving hook assembly is located in the position restricting region, and the first end of the labor-saving hook assembly abuts against the trigger so that the trigger is fixed to the casing, and further, the trigger cannot be pulled, ensuring further protection for the water gun and avoiding injuries caused by the user accidentally activating the water gun to spray water, improving the use safety of the water gun.

[0019] 4. In the water gun provided by the embodiment according to the present invention, the shift assembly includes a slide member, a slider and a slide rail. The slide rail is fixed inside the casing. The slider is slidably connected to the slide rail. The slide member is engaged with the slider and exposed from the casing. By simply operating the slide member by the user, the slider can be moved. A movable groove is formed in the slide rail. The second end of the labor-saving hook assembly is located in the movable groove. The slide member can move the slider closer to or away from the second end of the labor-saving hook assembly under the action of an external force. Further, it can be switched between a first state, a second state and a third state. In the first state, there is a movable gap between the second end of the labor-saving hook assembly and the slider. The second end of the labor-saving hook assembly can move in the movable groove. In the second state and the third state, the second end of the labor-saving hook assembly abuts against the slider. The simple combination of the slide member, the slider and the slide rail enables rapid switching between the first state, the second state and the third state, making it easy to understand and convenient to operate. It can avoid misoperation by the user. At the same time, the assembly and disassembly of the water gun are also made convenient.

[0020] 5. In the water gun provided by the embodiment according to the present invention, the labor-saving hook assembly includes a contact post, a rotating shaft, a movable hook and a tension spring. The first end of the labor-saving hook assembly is the movable hook. The second end of the labor-saving hook assembly is the contact post. Both ends of the rotating shaft are movably provided on the inner wall of the casing so that the rotating shaft can rotate around the central axis. The contact post and the movable hook are provided on the side surface of the rotating shaft. One end of the tension spring is connected to the movable hook. The other end of the tension spring is connected to the inner wall of the casing. Due to the action of the contact post, the rotating shaft, the movable hook and the tension spring, the combination of the trigger and the shift assembly located not in the same plane is realized. Further, the change in the water spraying state of the water gun in the first state, the second state and the third state is completed. Also, the structure of the labor-saving hook assembly is simple, mass production and assembly are easy, and after-maintenance is facilitated.

[0021] 6. In the water gun provided by the embodiment according to the present invention, the trigger has a concave groove formed therein, and the concave groove is divided into a position regulation region, a movable region, and a self-lock region from top to bottom. Since the contact post and the movable hook are provided on the side surface of the rotation axis, in the first state, the second state, and the third state, the shift assembly gradually approaches the contact post, and at this time, the position of the movable hook changes from bottom to top. Therefore, by limiting the order of the position regulation region, the movable region, and the self-lock region, it is possible to conform to the change in the water spraying state of the water gun in the three states according to the state change of the shift assembly.

[0022] Further, the edge of the concave groove in the position regulation region and the edge of the concave groove in the movable region are connected by a smooth corner, enabling natural switching between the second state and the third state and avoiding jamming when pulling the trigger.

[0023] Also, the edge of the concave groove in the position regulation region is closer to the movable hook than the edge of the concave groove in the movable region. In the third state, the movable hook abuts against the edge of the concave groove in the position regulation region. By limiting the distances between the edge of the concave groove in the position regulation region, the edge of the concave groove in the movable region, and the movable hook, switching between the second state and the third state can be realized without the need to combine with other components, simplifying the overall structure of the water gun.

[0024] 7. In the water gun provided by the embodiment according to the present invention, the edge of the concave groove in the self-lock region and the edge of the concave groove in the movable region are smoothly connected, enabling smoother switching between the first state and the second state.

[0025] 8. In the water gun provided by the embodiment according to the present invention, the self-locking structure includes an arcuate bayonet and a step, and the step is installed corresponding to the opening of the arcuate bayonet. In the first state, there is a movable gap between the abutting post and the shift assembly. When the trigger is pulled, the movable hook is hooked on the arcuate bayonet by the tension spring and the step. When the trigger is released, the movable hook is locked on the arcuate bayonet to realize the self-locking of the trigger. When the trigger is pulled and released again, the movable hook is disengaged from the arcuate bayonet by the tension spring and the step, and the lock is released. The self-locking structure formed by the arcuate bayonet and the step realizes the locking and unlocking of the trigger, has a simple structure, can reduce the manufacturing cost, reduce the failure rate, and improve the reliability of the whole water gun.

[0026] 9. In the water gun provided by the embodiment according to the present invention, the step is located on the center line of the arcuate bayonet. Such a design can ensure that the trigger can successfully release the self-locking when the trigger is pulled and released again.

[0027] 10. In the water gun provided by the embodiment according to the present invention, both the water suction pipe and the water discharge pipe are attached to the casing. One end of the water discharge pipe is connected to one side of the valve body, the upper end of the water suction pipe is connected to the lower end of the valve body, the lower side of one end of the trigger is pressed against one end of the pressure spring, and the other end of the pressure spring is connected to the upper end of the valve body. When the trigger is pulled, the pressure spring is pushed to drive the valve body so as to communicate the water suction pipe and the water discharge pipe. When the trigger is released, the pressure spring restores the deformation to drive the valve body so as to close the water suction pipe and the water discharge pipe. The embodiment according to the present invention makes it easy to open the valve body by pressing the trigger to communicate the water suction pipe and the water discharge pipe through the combination of the trigger, the pressure spring and the valve body, thus reducing the burden on the user's hand. At the same time, when the user releases the trigger, the pressure spring restores the deformation and the trigger returns to the normal state.

Brief Description of the Drawings

[0028] To more clearly explain the technical solutions in the embodiments of this application or the prior art, the following briefly describes the drawings that need to be used in the description of the embodiments or the prior art. However, the drawings in the following description are only some embodiments of this application, and it is obvious that those skilled in the art can obtain other drawings from these drawings without creative efforts.

[0029]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0030] To facilitate the understanding of this application, the following more comprehensively describes this application with reference to the related drawings. Embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described in the text. Rather, the purpose of providing these embodiments is to make the disclosure content of this application more complete.

[0031] Unless otherwise defined, all technical and scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the description of this application herein are for the purpose of describing particular embodiments only and are not intended to limit this application.

[0032] The terms "first", "second", "third", etc. used in this application can be used herein to describe various elements, but it should be understood that these elements are not limited by these terms. These terms are only used to distinguish one element from another. When used herein, the singular forms "one", "a" and "the" can also include the plural form unless the context clearly dictates otherwise. Terms such as "comprising" or "having" specify the presence of the described features, wholes, steps, operations, assemblies, parts, or combinations thereof, but it should also be understood that they do not preclude the presence or possibility of addition of one or more other features, wholes, steps, operations, assemblies, parts, or combinations thereof.

[0033] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly disposed on the other element or there may be elements sandwiched in between. When considering that an element is "connected" to another element, it can be directly connected to the other element or there may be elements sandwiched in between at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0034] In the present invention, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "front", "rear", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "transverse", "longitudinal" is based on the orientation or positional relationship shown in the drawings. These terms are mainly for better explaining the present invention and its embodiments, and are not intended to limit that the shown device, element or component must have a specific orientation or be configured and operated in a specific orientation. And some of the above terms can be used to indicate the orientation or positional relationship, and can also be used to represent other meanings. For example, the term "up" can also be used to represent some kind of dependency or connection relationship in some cases. Those skilled in the art can understand the specific meaning of these terms in the present invention based on the specific situation.

[0035] Also, the terms "attach", "install", "provide", "connect", "be connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure, and may be a mechanical connection or an electrical connection, and may be a direct connection or an indirect connection through an intermediate medium, or may be an internal communication between two devices, elements or components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific situation.

[0036] In the embodiments according to the present invention, when the user uses the water gun, the upward end is defined as the upper end and the downward end is defined as the lower end.

[0037] As shown in FIGS. 1 to 3, an embodiment according to the present invention provides a water gun 1 including a casing 11, a shift assembly 12, a labor-saving hook assembly 13, and a trigger 14. Among them, the labor-saving hook assembly 13 is installed in the casing 11 and is rotatable with respect to the casing 11. A part of the shift assembly 12 is exposed from the casing 11 and is movable with respect to the casing 11. One end of the trigger 14 is rotatably connected to the casing 11, and the other end of the trigger 14 is exposed from the casing 11 and is movable with respect to the casing 11. The shift assembly 12 can be switched between a first state, a second state, and a third state under the action of an external force.

[0038] Continuing to refer to FIGS. 2 and 3, the water gun 1 further includes a water suction pipe 15, a water discharge pipe 16, a valve body 17, and a pressure spring 18. Both the water suction pipe 15 and the water discharge pipe 16 are attached to the casing 11. One end of the water discharge pipe 16 is connected to one side of the valve body 17, the upper end of the water suction pipe 15 is connected to the lower end of the valve body 17, the lower side of one end of the trigger 14 is pressed against one end of the pressure spring 18, and the other end of the pressure spring 18 is connected to the upper end of the valve body 17. When the trigger 14 is pulled, the pressure spring 18 is pushed to drive the valve body 17 so as to communicate the water suction pipe 15 and the water discharge pipe 16. When the trigger 14 is released, the pressure spring 18 restores its deformation to drive the valve body 17 so as to close the water suction pipe 15 and the water discharge pipe 16.

[0039] In the embodiment according to the present invention, the combination of the trigger 14, the pressure spring 18, and the valve body 17 makes it easy to open the valve body 17 by pressing the trigger 14 to communicate the water suction pipe 15 and the water discharge pipe 16, thereby reducing the burden on the user's hand. At the same time, when the user releases the trigger 14, the pressure spring 18 restores its deformation to close the water suction pipe 15 and the water discharge pipe 16, and the trigger 14 returns to its normal state.

[0040] It should be noted that it is a prior art for the valve body 17 to control the communication or closing of the water suction pipe 15 and the water discharge pipe 16, and the embodiments according to the present invention will not be described in detail herein.

[0041] As shown in FIGS. 3 and 4, specifically, the shift assembly 12 includes a slide member 121, a slider 122, and a slide rail 123. Among them, the slide rail 123 is fixed within the casing 11, the slider 122 is slidably connected to the slide rail 123, the slide member 121 is engaged with the slider 122 and exposed from the casing 11, and the user can move the slider 122 only by operating the slide member 121. A movable groove 1231 is formed in the slide rail 123, and the labor-saving hook assembly 13 includes a first end and a second end. Among them, the second end of the labor-saving hook assembly 13 is located in the movable groove 1231, and the slide member 121 can move the slider 122 closer to or away from the second end of the labor-saving hook assembly 13 under the action of an external force, and further, it can be switched between a first state, a second state, and a third state.

[0042] In the first state, there is a movable gap between the second end of the labor-saving hook assembly 13 and the slider 122, and it can be understood that the second end of the labor-saving hook assembly 13 can move in the movable groove 1231. In the second state and the third state, the second end of the labor-saving hook assembly 13 abuts against the slider 122.

[0043] More specifically, the biasing force between the labor-saving hook assembly 13 and the slider 122 in the third state is greater than the biasing force between the labor-saving hook assembly 13 and the slider 122 in the second state.

[0044] In the embodiment according to the present invention, by means of a simple combination of the slide member 121, the slider 122, and the slide rail 123, a rapid switching among the first state, the second state, and the third state is achieved, which is clear and convenient to operate, can avoid misoperation by the user, and at the same time, the assembly and disassembly of the water gun 1 are also made convenient.

[0045] As shown in FIGS. 2, 5, and 6, specifically, the labor-saving hook assembly 13 includes a contact post 131, a rotating shaft 132, a movable hook 133, and a tension spring 134. Among them, the first end of the labor-saving hook assembly 13 is the movable hook 133, the second end of the labor-saving hook assembly 13 is the contact post 131, both ends of the rotating shaft 132 are movably provided on the inner wall of the casing 11 so that the rotating shaft 132 can rotate around the central axis, the contact post 131 and the movable hook 133 are provided on the side surface of the rotating shaft 132, one end of the tension spring 134 is connected to the movable hook 133, and the other end of the tension spring 134 is connected to the inner wall of the casing 11.

[0046] The angle between the contact post 131 and the movable hook 133 may be 30° to 90°. For example, the angle is a numerical value such as 30°, 45°, 90°, etc. By limiting the angle between the contact post 131 and the movable hook 133, the space can be utilized to the maximum extent within the limited space inside the casing 11 of the water gun 1, and the space occupancy rate of the casing 11 is improved.

[0047] In the embodiment according to the present invention, due to the actions of the contact post 131, the rotating shaft 132, the movable hook 133, and the tension spring 134, a combination of the trigger 14 and the shift assembly 12 that are not located in the same plane is realized, and further, the change in the water spraying state of the water gun in the first state, the second state, and the third state is completed. In addition, the structure of the labor-saving hook assembly 13 is simple, mass production and assembly are easy, and after-maintenance is facilitated.

[0048] As shown in FIGS. 7 and 8, specifically, a concave groove 141 is formed in the trigger 14. The concave groove 141 is divided into a position regulating region 142, a movable region 143, and a self-locking region 144 from top to bottom (the direction from top to bottom means the direction from where the concave groove 141 approaches the shift assembly 12 to where the concave groove 141 departs from the shift assembly 12). Among them, a self-locking structure 19 is installed in the self-locking region.

[0049] Because the abutment post 131 and the movable hook 133 are provided on the side of the pivot shaft 132, it can be understood that the shift assembly 12 gradually approaches the abutment post 131 in the first, second, and third states, and as this happens, the position of the movable hook 133 changes from bottom to top (the direction from bottom to top refers to the direction from where the groove 141 moves away from the shift assembly 12 to where the groove 141 moves closer to the shift assembly 12). Therefore, by limiting the order of the position restriction region 142, the movable region 143, and the self-locking region 144, it is possible to adapt to the changing state of the water gun 1 spraying water in the three states in accordance with the changing state of the shift assembly 12.

[0050] More specifically, in the third state, the movable hook 133 abuts against the edge of the recessed groove 141 of the position restriction area 142.

[0051] It is preferable that a smooth corner connects the edge of the groove 141 in the position restriction area 142 with the edge of the groove 141 in the movable area 143. This arrangement allows for a smooth transition between the second state and the third state, and prevents the trigger 14 from getting caught when pulled.

[0052] In the embodiment of the present invention, the distance between the edge of the groove 141 in the position control area 142 and the edge of the groove 141 in the movable area 143 and the movable hook 133 is limited, thereby realizing switching between the second and third states, eliminating the need for combination with other components and making the overall structure of the water gun 1 simpler.

[0053] It is preferable that the edge of the recessed groove 141 in the position restriction area 142 be closer to the movable hook 133 than the edge of the recessed groove 141 in the movable area 143 .

[0054] It is preferable that the edge of the groove 141 in the self-locking region 144 is flatly connected to the edge of the groove 141 in the movable region 143. By arranging them in this manner, switching between the first state and the second state can be made smoother.

[0055] Specifically, when the shift assembly 12 switches to the first state, there is a movable gap between the second end of the labor-saving hook assembly 13 and the shift assembly 12. The first end of the labor-saving hook assembly 13 is located in the self-locking area 144. When the trigger 14 is pulled, due to the existence of the movable gap, the first end of the labor-saving hook assembly 13 can move within the self-locking area 144. When the trigger 14 is released, the first end of the labor-saving hook assembly 13 is locked to the self-locking structure 19 so as to realize the self-locking of the trigger 14. When the trigger 14 is pulled and released again, the lock between the first end of the labor-saving hook assembly 13 and the self-locking structure 19 is released. Using a conventional water gun is very time-consuming, and it is also easy to hurt the fingers. Moreover, when the user presses the trigger for a long time, the hand gets tired easily, and the user experience is poor. By combining the shift assembly 12, the labor-saving hook assembly 13 and the trigger 14, and further endowing the water gun 1 with a self-locking function, the user can avoid hand fatigue caused by pressing the trigger for a long time. The user does not need to pull the trigger 14 strongly, and can spray water just by holding the water gun 1. Thereby, the purpose of labor saving can be achieved.

[0056] Specifically, when the shift assembly 12 switches to the second state, the second end of the labor-saving hook assembly 13 abuts against the shift assembly 12 so that the first end of the labor-saving hook assembly 13 is located in the movable area 143. By pulling or releasing the trigger 14, the first end of the labor-saving hook assembly 13 can move freely within the movable area 143. The user can freely switch between the labor-saving state and the normal state functions. When the trigger 14 is pressed, water is sprayed and it stops immediately when the hand is released. When the user operates and uses it for a short time, the normal state can be selected to spray water. The usability and practicality of the water gun 1 are greatly improved, and the user experience is improved.

[0057] Specifically, when the shift assembly 12 is switched to the third state and the first end of the labor-saving hook assembly 13 is located in the position regulating region 142, the second end of the labor-saving hook assembly 13 abuts against the shift assembly 12, and the first end of the labor-saving hook assembly 13 abuts against the trigger 14 and is fixed to the casing 11 so that the trigger 14 cannot be pulled further, thereby ensuring further protection for the water gun 1, preventing injuries caused by the user accidentally activating the water gun 1 and spraying water, and improving the safety of using the water gun 1.

[0058] The first state is the labor-saving state. It can be understood that when the user uses the water gun 1 in this state, it is very labor-saving. The second state is the normal state. When the user uses the water gun 1 in this state, pulling the trigger 14 will spray water, and releasing the trigger 14 will stop the water spray. The third state is the locked state. In this state, the trigger 14 cannot be pulled, and the water gun 1 cannot spray water.

[0059] Subsequently, as shown in FIGS. 7 and 8, specifically, the self-locking structure 19 includes an arc-shaped bayonet 1441 and a step 1442, and the step 1442 is installed corresponding to the opening of the arc-shaped bayonet 1441.

[0060] In the first state, there is a movable gap between the abutting post 131 and the shift assembly 12. When the trigger 14 is pulled, the movable hook 133 is hooked on the arc-shaped bayonet 1441 by the tension spring 134 and the step 1442. When the trigger 14 is released, the movable hook 133 is locked to the arc-shaped bayonet 1441 to achieve self-locking of the trigger 14. When the trigger 14 is pulled and released again, the movable hook 133 is disengaged from the arc-shaped bayonet 1441 by the tension spring 134 and the step 1442, and the lock is released. The self-locking structure 19 formed by the arc-shaped bayonet 1441 and the step 1442 realizes the locking and unlocking of the trigger 14, has a simple structure, can reduce the manufacturing cost and the failure rate, and improves the reliability of the entire water gun 1.

[0061] Specifically, the arc-shaped bayonet 1441 and the step 1442 are integrally formed and provided from the trigger 14, so that the water gun 1 can have higher structural strength and durability.

[0062] Preferably, the arc-shaped bayonet 1441 is crescent-shaped, which can ensure smoother locking and unlocking of the trigger 14 and reduce catching.

[0063] Preferably, the step 1442 is located on the center line of the arc-shaped bayonet 1441. Such a design can ensure that the trigger 14 succeeds in releasing the self-lock when the trigger 14 is pulled and released again.

[0064] More specifically, the step 1442 is a sharp triangular protrusion at the edge of the concave groove 141 in the self-lock area 144. By installing the sharp triangle, it can be avoided that the self-lock fails due to excessive pressing when the trigger 14 performs the self-lock operation, and the success rate of the self-lock of the trigger 14 can be increased.

[0065] Furthermore, an auxiliary slope 1443 may be provided in the self-lock area 144, which is installed close to the arc-shaped bayonet 1441. By installing the auxiliary slope 1443, the height of the movable hook 133 can be increased to guide and lock the movable hook 133 to the arc-shaped bayonet 1441, and the accuracy of the self-lock of the trigger 14 is improved.

[0066] For ease of understanding, in the embodiment according to the present invention, the process of operating the water gun 1 here will be described, but it should not be limited thereto.

[0067] When using the water gun 1, if the user needs to operate it for a long time, the slide member 121 can be moved to the first state, i.e., the labor-saving state. At this time, there is a movable gap between the abutting post 131 and the slider 122, the abutting post 131 can move in the movable groove 1231, and the movable hook 133 is located in the self-locking area 144. When the trigger 14 is pulled, in combination with the step 1442, the movable hook 133 is pulled into the arc-shaped bayonet 1441 by the tension spring 134 to be hooked, realizing the self-locking of the trigger 14. At this time, there is no need for a person to hold the action of pulling the trigger 14 by hand, and the water gun 1 can continuously spray water. If it is necessary to stop the water spray, only pull the trigger 14 again. In combination with the step 1442, the movable hook 133 is pulled out from the arc-shaped bayonet 1441 by the tension spring 134. At this time, when a person's hand releases the trigger 14, the trigger 14 is pushed to the inoperative state by the pressure spring 18, and the water spray stops.

[0068] If the user only needs to operate it for a short time, the slide member 121 can be moved to the second state, i.e., the normal state. At this time, the abutting post 131 abuts against the slider 122, the movable hook 133 is located in the movable area 143, and it does not get caught on the trigger 14. When the trigger 14 is pulled, the water gun 1 sprays water, and when the trigger 14 is released, the water gun 1 stops spraying water.

[0069] If the user does not need to use the water gun 1, the slide member 121 can be moved to the third state, i.e., the locked state. At this time, the abutting post 131 abuts against the slider 122, the movable hook 133 is located in the position-restricting area 142 and abuts against the edge of the concave groove 141. In this state, the trigger 14 cannot be pulled, and the water gun 1 cannot spray water.

[0070] Each of the technical features of the above-described embodiments can be arbitrarily combined. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all of them should be regarded as being within the scope described in this specification.

[0071] The above-described embodiments merely represent some embodiments of this application. Although the description is relatively specific and detailed, it should not be understood that the scope of the claims of this invention is limited thereby. It should be noted that those skilled in the art can make some modifications and improvements on the premise of not departing from the concept of this application, and all of these belong to the protection scope of this application. Therefore, the protection scope of this application should conform to the appended claims.

Description of Reference Numerals

[0072] 1 Water gun 11 Casing 12 Shift assembly 13 Labor-saving hook assembly 14 Trigger 15 Suction pipe 16 Discharge pipe 17 Valve body 18 Pressure spring 19 Self-locking structure 121 Sliding material 122 Slider 123 Slide rail 131 Contact post 132 Rotating shaft 133 Movable hook 134 Tension spring 141 Concave groove 142 Position regulating region 143 Movable region 144 Self-locking region 1231 Movable groove 1441 Arc-shaped bayonet 1442 Step 1443 Auxiliary slope

Claims

Claim 1 A water gun, comprising: a casing; a labor-saving hook assembly installed within the casing and rotatable relative to the casing; a trigger partially exposed from the casing and movable relative to the casing, the trigger being provided with a self-lock area where a self-lock structure is installed; and The labor-saving hook assembly includes a first end, the first end of the labor-saving hook assembly is located in the self-lock area, when the trigger is pulled, the first end of the labor-saving hook assembly moves within the self-lock area, when the trigger is released, the first end of the labor-saving hook assembly is locked to the self-lock structure to achieve self-locking of the trigger, and when the trigger is pulled and released again, the lock between the first end of the labor-saving hook assembly and the self-lock structure is released. The water gun is characterized by this. Claim 2 The water gun further includes a shift assembly, the labor-saving hook assembly further includes a second end provided opposite to the first end, the shift assembly can be switched between a first state and a second state under the action of an external force, when the shift assembly switches to the first state, there is a movable gap between the second end and the shift assembly, the first end of the labor-saving hook assembly moves within the self-lock area, a movable area is further opened in the trigger, when the shift assembly switches to the second state, the second end of the labor-saving hook assembly abuts against the shift assembly so that the first end of the labor-saving hook assembly is located in the movable area, and when the trigger is pulled or released, the first end of the labor-saving hook assembly can move freely within the movable area. The water gun according to claim 1 is characterized by this. Claim 3 The trigger further has a position regulating region formed therein, the shift assembly can be switched between the first state, the second state and the third state by the action of an external force, and when the shift assembly is switched to the third state, the second end of the force-saving hook assembly abuts against the shift assembly such that the first end of the force-saving hook assembly is located in the position regulating region, and the first end of the force-saving hook assembly abuts against the trigger so that the trigger is fixed to the casing. The water gun according to claim 2, characterized in that.

4. The shift assembly includes a sliding member, a slider and a slide rail, the slide rail is fixed within the casing, the slider is slidably connected to the slide rail, the sliding member is engaged with the slider and exposed from the casing. A movable groove is formed in the slide rail, the second end of the force-saving hook assembly is located in the movable groove, the sliding member can move the slider closer to or away from the second end of the force-saving hook assembly by the action of an external force, and further switch between the first state, the second state and the third state. In the first state, there is a movable gap between the second end of the force-saving hook assembly and the slider, and the second end of the force-saving hook assembly can move in the movable groove. In the second state and the third state, the second end of the force-saving hook assembly abuts against the slider. The water gun according to claim 3, characterized in that.

5. The force-saving hook assembly includes a contact post, a rotating shaft, a movable hook and a tension spring. The first end of the force-saving hook assembly is the movable hook, and the second end of the force-saving hook assembly is the contact post. Both ends of the rotating shaft are movably provided on the inner wall of the casing such that the rotating shaft can rotate around the central axis. The contact post and the movable hook are provided on the side surface of the rotating shaft. One end of the tension spring is connected to the movable hook, and the other end of the tension spring is connected to the inner wall of the casing. The water gun according to claim 4, characterized in that.

6. The trigger has a concave groove formed therein, and the concave groove is divided into a position regulating region, a movable region, and a self-locking region from top to bottom. The edge of the concave groove in the position regulating region is connected to the edge of the concave groove in the movable region by a smooth corner, and the edge of the concave groove in the position regulating region is closer to the movable hook than the edge of the concave groove in the movable region. In the third state, the water gun according to claim 5, wherein the movable hook abuts against the edge of the concave groove in the position regulating region.

7. The water gun according to claim 6, wherein the edge of the concave groove in the self-locking region is smoothly connected to the edge of the concave groove in the movable region.

8. The self-locking structure includes an arcuate bayonet and a step, and the step is installed corresponding to the opening of the arcuate bayonet. In the first state, when the trigger is pulled, the movable hook is hooked on the arcuate bayonet by the tension spring and the step. When the trigger is released, the movable hook is locked to the arcuate bayonet to realize self-locking of the trigger. When the trigger is pulled and released again, the movable hook is disengaged from the arcuate bayonet by the tension spring and the step, and the lock is released. The water gun according to claim 6, characterized in that.

9. The water gun according to claim 8, wherein the step is located on the center line of the arcuate bayonet.

10. The water gun further includes a water suction pipe, a water discharge pipe, a valve body, and a pressure spring. Both the water suction pipe and the water discharge pipe are attached to the casing. One end of the water discharge pipe is connected to one side of the valve body, and the upper end of the water suction pipe is connected to the lower end of the valve body. The lower side of one end of the trigger is pressed against one end of the pressure spring, and the other end of the pressure spring is connected to the upper end of the valve body. When the trigger is pulled, the pressure spring is pushed to drive the valve body so as to communicate the water suction pipe and the water discharge pipe. When the trigger is released, the pressure spring restores its deformation to drive the valve body so as to close the water suction pipe and the water discharge pipe. The water gun according to claim 1, characterized in that.

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