Anti-freezing structure of front trigger water gun

Abstract

The utility model discloses an anti-freezing structure of a front trigger water gun, which comprises a gun body, a water outlet channel, a water-shaped spray head, a water inlet joint and the like, and is mainly characterized in that a gun barrel is additionally arranged in the gun body, a water inlet channel respectively communicated with the water inlet joint and the water outlet channel is arranged in the gun barrel, and a water inlet adjacent to the water inlet joint is arranged at the bottom of the water inlet channel; meanwhile, a valve rod and an elastic element are further arranged in the water inlet channel, a valve clack is arranged at the end, close to the water inlet, of the valve rod, and a pulling piece is arranged outside the gun body. Therefore, the valve rod can be pushed by pressing the pulling part to drive the valve clack to open the water inlet so as to realize the normal use of the water gun, or after the pulling part is reset, the valve rod is elastically pushed by the elastic element to automatically drive the valve clack to seal and close the water inlet, so that the water inlet of the adjacent water inlet joint close to the tail part of the gun body is closed. Therefore, no water remains in the gun body, the risk that the gun body is expanded and cracked due to freezing expansion of the water remains under the freezing condition is avoided, and a good anti-freezing effect can be achieved.

Description

Technical Field

[0001] The utility model relates to an antifreeze structure applied in a water gun, in particular to an antifreeze structure of a front trigger water gun. Background Art

[0002] At present, the structure of a water gun is usually composed of a gun body, a water outlet channel in the gun body, a water-shaped nozzle connected to the water outlet channel at the head of the gun body, and a water inlet joint at the rear of the gun body. A switch component is provided in the water outlet channel, which is installed close to the water-shaped nozzle, and the switch component is used to seal and open and close the water outlet channel. Since the switch component is close to the water outlet at the head of the gun body and away from the water inlet at the rear of the gun body, after the water outlet channel is closed, the water entering from the water inlet joint will remain in the gun body. When the water gun is in a frozen outdoor environment, there is a risk that the remaining water in the gun body will expand due to freezing and crack the gun body. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an antifreeze structure of a front trigger water gun which can prevent residual water from appearing in the gun body after it is closed, thereby preventing the residual water from expanding and cracking the gun body due to freezing under freezing conditions.

[0004] The technical problem of the utility model is achieved through the following technical solutions:

[0005] A front-trigger water gun antifreeze structure comprises a gun body, a water outlet channel in the gun body, a water-shaped nozzle connected to the water outlet channel at the head of the gun body, and a water inlet joint at the rear of the gun body. The gun body is provided with a gun barrel, and the gun barrel is provided with a water inlet channel connected to the water inlet joint and the water outlet channel respectively. The bottom of the water inlet channel is provided with a water inlet adjacent to the water inlet joint, a valve stem and an elastic element are provided in the water inlet channel, and a valve flap is provided at the end of the valve stem close to the water inlet; a trigger piece is provided outside the gun body, and the trigger piece pushes the valve stem to drive the valve flap to open the water inlet, or the elastic element elastically pushes the valve stem to drive the valve flap to close the water inlet.

[0006] The gun body is provided with a water inlet seat which is inserted into the water inlet channel by the tail of the gun body and sealed. The water inlet seat is provided with a water inlet hole connected to the water inlet channel, and a water inlet formed by an inner shoulder is provided in the water inlet hole. The valve disc is arranged below the water inlet.

[0007] The valve stem is provided with an external shoulder, and the elastic element is sleeved outside the valve stem. The two ends of the elastic element are elastically pushed on the external shoulder and the water inlet seat in the water inlet channel respectively, and under normal conditions, the elastic element pushes the valve stem upward to drive the valve disc to seal and close the water inlet.

[0008] The trigger member includes a trigger, a push rod and a push rod spring sleeved outside the push rod. The trigger is installed on the gun barrel and exposed to the gun body. The outer end of the push rod is elastically pushed by the push rod spring to contact the trigger, and the inner end of the push rod passes through the gun barrel and contacts the valve stem. The trigger presses the push rod inward to drive the valve stem to move downward, or the push rod spring elastically pushes the push rod outward to drive the trigger to reset. The valve stem is elastically pushed upward by the elastic element.

[0009] The valve stem is provided with a driving hole, and the bottom hole wall of the driving hole is provided with a " / "-shaped moving inclined surface. The movable seal at the inner end of the push rod passes through the barrel and contacts the moving inclined surface. The push rod is pushed inward by the trigger, driving the inner end of the push rod to slide along the moving inclined surface, thereby pushing the valve stem to move downward.

[0010] An oblique tube extending obliquely upward is arranged outside the gun barrel, and an oblique hole penetrating along the axial direction is arranged inside the oblique tube; the inner end movable seal of the push rod passes through the oblique hole.

[0011] The outer end of the push rod is provided with a mushroom head, the inner end of the push rod is provided with a spherical surface, and the trigger is provided with a "\"-shaped driving inclined surface that forms elastic pushing contact with the mushroom head, and the spherical surface contacts the moving inclined surface.

[0012] The push rod spring is sleeved outside the inclined tube, and the two ends of the push rod spring elastically push on the gun barrel and the mushroom head respectively, and elastically push the mushroom head to contact the driving inclined surface under normal conditions.

[0013] The valve stem is provided with a limiting outer shoulder located above the drive hole, and the water inlet channel is provided with a limiting inner shoulder located above the limiting outer shoulder. The valve stem moves upward and drives the limiting inner shoulder to contact the limiting outer shoulder to form an upward movement stroke of the valve stem.

[0014] The water inlet joint is threadedly and sealedly connected to the water inlet hole of the water inlet seat.

[0015] Compared with the prior art, the present invention mainly adds a gun barrel to the gun body, and provides a water inlet channel connected to the water inlet joint and the water outlet channel respectively in the gun barrel, and then provides a water inlet adjacent to the water inlet joint at the bottom of the water inlet channel; at the same time, a valve stem and an elastic element are also provided in the water inlet channel, and a valve flap is provided at one end of the valve stem close to the water inlet, and a trigger piece is provided outside the gun body; in this way, the valve stem can be pushed by pressing the trigger piece to drive the valve flap to open the water inlet, so as to achieve normal use of the water gun, or after the trigger piece is reset, the valve stem is elastically pushed by the elastic element to automatically drive the valve flap to seal and close the water inlet, so as to prevent water from the water inlet joint from entering the gun body; therefore, as the water inlet of the adjacent water inlet joint near the tail of the gun body is closed, no residual water will appear in the gun body, thus avoiding the risk of the residual water bursting the gun body due to ice expansion under freezing conditions, so it can play a better anti-freeze role. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic cross-sectional view of the utility model (the water gun is in the open state).

[0017] Figure 2 This is a schematic cross-sectional view of the utility model (the water gun is in a closed state).

[0018] Figure 3 for Figure 1 Exploded view of the water inlet connector (with the water inlet connector removed).

[0019] Figure 4 It is a three-dimensional exploded view of the components on the gun body.

[0020] Figure 5 A cross-sectional view of the gun barrel.

[0021] Figure 6 A cross-sectional view of the valve stem.

[0022] Figure 7 It is the assembly cross-sectional view of the water inlet seat and the water inlet joint.

[0023] Figure 8 A cross-sectional view of the trigger.

[0024] Figure 9 A cross-sectional view of the push rod. DETAILED DESCRIPTION

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 9 As shown, 1. gun body, 11. gun head, 12. handle, 13. water outlet channel, 14. elastic element, 15. valve disc, 16. locking ring, 2. water-shaped nozzle, 3. water inlet joint, 31. sealing gasket, 4. valve core, 5. thumb switch, 6. valve stem, 61. drive hole, 62. motion slope, 63. outer shoulder, 64. limit outer shoulder, 7. barrel, 71. water inlet channel, 72. limit inner shoulder, 73. inclined tube, 74. inclined hole, 8. water inlet seat, 81. water inlet hole, 82. water inlet, 9. pull piece, 91. trigger, 911. drive slope, 912. locking block, 913. screw, 92. push rod, 921. mushroom head, 922. spherical surface, 93. push rod spring, 10. O-ring.

[0027] An antifreeze structure for a front trigger water gun, such as Figures 1 to 4 As shown, it is mainly suitable for internal antifreeze of water guns, and its structure includes a gun body 1, a water-shaped nozzle 2 at the head of the gun body and a water inlet joint 3 at the tail of the gun body.

[0028] The gun body 1 is composed of a vertical handle 12 and a gun head 11 bent at the top of the handle. A water outlet channel 13 is provided in the gun head 11 along the axis, so the water-shaped nozzle 2 can be connected to the water outlet channel 13.

[0029] A valve core 4 is installed within the water outlet passage 13, and a thumb switch 5 is installed on the outside of the gun body 1. The valve core 4 and thumb switch 5 are located at the bend between the gun head 11 and the handle 12. Furthermore, the valve core 4 is mounted horizontally within the gun body 1, and the thumb switch 5 can be moved forward and backward along an arc by the user's finger, that is, reciprocating relative to the head and tail. Therefore, the forward and backward rotation of the thumb switch 5 drives the valve core 4 to rotate about the horizontal axis, thereby adjusting the water flow rate out of the water outlet passage 13. Of course, O-rings 10 are also installed at each end of the valve core 4 to form a dynamic seal during the valve core rotation.

[0030] The gun body 1 is provided with a gun barrel 7, which is a hollow straight tube, that is, the gun barrel 7 is provided with a water inlet channel 71 running through the axial line, and the water inlet channel is connected to the water inlet joint 3 and the water outlet channel 13 respectively. The specific structure is: the top of the gun barrel 7 is sealed and inserted in the water outlet channel 13 through a double-channel O-ring 10, thereby realizing the connection between the water inlet channel 71 and the water outlet channel 13, and the gun body 1 is provided with a water inlet seat 8 which is inserted into the water inlet channel 71 at the bottom end of the gun barrel by the tail of the gun body and sealed by a single-channel O-ring. The water inlet seat is provided with a water inlet hole 81 connected to the water inlet channel 71, and the water inlet joint 3 is connected to the water inlet hole 81 of the water inlet seat 8 by screwing. Therefore, the water inlet joint 3 is connected to the water inlet channel 13 through the water inlet hole 81 of the water inlet seat 8, and a sealing gasket 31 is also provided between the water inlet joint 3 and the water inlet seat 8 to form a connection seal.

[0031] The bottom of the water inlet channel 71 is provided with a water inlet 82 adjacent to the water inlet joint 3 . Specifically, the water inlet 82 formed by an inner shoulder is provided in the water inlet hole 81 .

[0032] The water inlet channel 71 is provided with a valve stem 6 and an elastic element 14; the valve stem 6 is located at one end close to the water inlet 82, i.e. Figure 1 As shown, a valve flap 15 is provided at the lower end, which is embedded and fixed on the end of the valve stem 6, that is, the sealing ring in the ring groove at the lower end of the valve stem, and the sealing ring driven by the valve stem end must be located below the water inlet 82.

[0033] The elastic element 14 is sleeved on the outside of the valve stem 6. The elastic element can be a cylindrical spring as shown in this embodiment, and the two ends of the elastic element 14 are elastically pushed on the outer shoulder 63 of the outer circumferential surface of the middle part of the valve stem 6 and the water inlet seat 8 in the water inlet channel 71. Therefore, under normal circumstances, the elastic element 14 will elastically push the valve stem 6 to move upward and drive the valve disc 15 to seal and close the water inlet 82.

[0034] At the same time, the water inlet channel 71 can also serve as a guide hole for the valve stem 6 to move up and down, so as to prevent the valve stem 6 from moving out of position and causing the valve flap 15 to be unable to effectively seal and close the water inlet 82.

[0035] The valve stem 6 is provided with a driving hole 61, which is located above the outer shoulder 63, and a " / "-shaped moving inclined surface 62 is provided on the bottom hole wall of the driving hole 6; the valve stem 6 is provided with a limiting outer shoulder 64 located above the driving hole 61, and the water inlet channel 71 is provided with a limiting inner shoulder 72 located above the limiting outer shoulder 64. When the valve stem 6 is elastically pushed upward by the elastic element 14, the limiting inner shoulder 72 will be driven to contact the limiting outer shoulder 64 to constitute the upward movement stroke of the valve stem.

[0036] The gun body 1 is provided with a trigger member 9 outside, and the trigger member includes a trigger 91, a push rod 92 and a push rod spring 93 sleeved outside the push rod.

[0037] Among them, the trigger 91 is installed on the barrel 7 and exposed to the gun body 1 to form a push-type operation; the outer end of the push rod 92 is provided with a mushroom head 921, and the inner end of the push rod is provided with a spherical surface 922. The trigger 91 is provided with a "\"-shaped driving inclined surface 911 that forms an elastic pushing contact with the mushroom head 921. Therefore, pressing the trigger 91 can be converted into an inward movement of the pushing push rod 92 by the sliding of the mushroom head 921 along the driving inclined surface 911.

[0038] After the movable seal at the inner end of the push rod 92 passes through the inclined hole 74 on the gun barrel 7, it contacts the moving inclined surface 62 of the drive hole 61 through the spherical surface 922. Therefore, the push rod 92 is pressed inward by the trigger 91, which can drive the spherical surface 922 at the inner end of the push rod to slide along the moving inclined surface 62, and then convert it into pushing the valve stem 6 downward, that is, the valve stem 6 is pushed by the trigger member 9 to drive the valve disc 15 to open the water inlet 82. An O-ring 10 is provided on the outside of the push rod 92 as a dynamic seal.

[0039] The gun barrel 7 is provided with an oblique tube 73 extending obliquely upward, and the oblique hole 74 is axially penetrated in the oblique tube; the push rod spring 93 is sleeved on the outside of the oblique tube 73, and the two ends of the push rod spring 93 elastically push on the gun barrel 7 and the mushroom head 921 respectively, so that under normal conditions, the mushroom head 921 can be elastically pushed to contact the driving inclined surface 71; therefore, when the push rod spring 93 elastically pushes the push rod 92 outward to drive the trigger 91 to reset, the valve stem 6 can be elastically pushed upward by the elastic element 14.

[0040] In addition, the trigger 91 is also provided with a locking piece 911 fixed by a screw 912, and a corresponding locking ring 16 is provided on the gun barrel 7. The action process between the two is as follows: pressing the trigger 91 inward to open the water inlet 82, the locking piece 911 on the trigger 91 will be locked by the locking ring 16. At this time, even if the pressing force on the trigger 91 is released, the trigger will not reset, ensuring that the valve flap 15 always opens the water inlet 82, so that the water gun can continue to discharge water for use; when the trigger 91 is pressed inward again, the locking piece 911 on the trigger will disengage from the locking ring 16. At this time, releasing the pressing force on the trigger 91, the trigger will automatically reset, so that the valve flap 15 automatically seals and closes the water inlet 82, and the water gun cannot be used to discharge water.

[0041] The present invention can push the valve stem 6 to drive the valve flap 15 to open the water inlet 82 by pressing the trigger member 9, so as to realize the normal use of the water gun, or after the trigger member 9 is reset, the elastic element 14 elastically pushes the valve stem 6 to automatically drive the valve flap 15 to seal and close the water inlet 82, so as to prevent the water from the water inlet joint 3 from entering the gun body 1; therefore, as the water inlet 82 of the adjacent water inlet joint 3 near the tail of the gun body is closed, no residual water will appear in the gun body 1, and the risk of the residual water expanding and cracking the gun body due to freezing under freezing conditions is avoided, so it can play a better anti-freeze role.

[0042] The above description is only a specific embodiment of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included in the protection scope of the present invention.

Claims

1. An antifreeze structure for a front trigger water gun, comprising a gun body (1), a water outlet channel (13) in the gun body, a water-shaped nozzle (2) connected to the water outlet channel at the head of the gun body, and a water inlet connector (3) at the rear of the gun body, characterized in that The gun body (1) is provided with a gun barrel (7), and a water inlet channel (71) is provided in the gun barrel and is connected to the water inlet joint (3) and the water outlet channel (13). The bottom of the water inlet channel is provided with a water inlet (82) adjacent to the water inlet joint (3). A valve stem (6) and an elastic element (14) are provided in the water inlet channel (71), and a valve flap (15) is provided at one end of the valve stem (6) close to the water inlet (82). A triggering member (9) is provided outside the gun body (1), and the triggering member pushes the valve stem (6) to drive the valve flap (15) to open the water inlet (82), or the elastic element (14) elastically pushes the valve stem (6) to drive the valve flap (15) to close the water inlet (82).

2. The antifreeze structure of the front trigger water gun according to claim 1, characterized in that The gun body (1) is provided with a water inlet seat (8) which is inserted into the water inlet channel (71) from the tail of the gun body and sealed therein. The water inlet seat is provided with a water inlet hole (81) communicating with the water inlet channel (71), and a water inlet (82) formed by an inner shoulder is provided in the water inlet hole. The valve flap (15) is provided below the water inlet (82).

3. The antifreeze structure of the front trigger water gun according to claim 2, characterized in that The valve stem (6) is provided with an external shoulder (63), and the elastic element (14) is sleeved outside the valve stem (6). The two ends of the elastic element elastically push against the external shoulder (63) and the water inlet seat (8) in the water inlet channel (71), respectively, and elastically push the valve stem (6) upward under normal conditions to drive the valve disc (15) to seal and close the water inlet (82).

4. The antifreeze structure of the front trigger water gun according to claim 1, characterized in that The trigger member (9) includes a trigger (91), a push rod (92) and a push rod spring (93) sleeved outside the push rod. The trigger (91) is installed on the gun barrel (7) and exposed outside the gun body (1). The outer end of the push rod (92) is elastically pushed by the push rod spring (93) to contact the trigger (91), and the inner end of the push rod passes through the gun barrel (7) and contacts the valve stem (6). The trigger (91) presses the push rod (92) inward to drive the valve stem (6) to move downward, or the push rod spring (93) elastically pushes the push rod (92) outward to drive the trigger (91) to reset, and the valve stem (6) is elastically pushed upward by the elastic element (14).

5. The antifreeze structure of the front trigger water gun according to claim 4, characterized in that The valve stem (6) is provided with a driving hole (61), and a " / "-shaped moving inclined surface (62) is provided on the bottom hole wall of the driving hole. The inner end of the push rod (92) is movable and sealed through the barrel (7) and contacts the moving inclined surface (62). The push rod (92) is pushed inward by the trigger (91) to drive the inner end of the push rod to slide along the moving inclined surface (62), thereby pushing the valve stem (6) to move downward.

6. The antifreeze structure of the front trigger water gun according to claim 4, characterized in that The gun barrel (7) is provided with an oblique tube (73) extending obliquely upward, and an oblique hole (74) is provided in the oblique tube that penetrates along the axial direction; the inner end of the push rod (92) is movable and sealed to pass through the oblique hole (74).

7. The antifreeze structure of the front trigger water gun according to claim 6, characterized in that The outer end of the push rod (92) is provided with a mushroom head (921), the inner end of the push rod is provided with a spherical surface (922), and the trigger (91) is provided with a "\"-shaped driving inclined surface (911) that forms an elastic pushing contact with the mushroom head (921), and the spherical surface (922) contacts the moving inclined surface (62).

8. The antifreeze structure of the front trigger water gun according to claim 7, characterized in that The push rod spring (93) is sleeved outside the inclined tube (73), and the two ends of the push rod spring (93) are elastically pushed on the barrel (7) and the mushroom head (921), and in normal state, the elastic pushing mushroom head (921) contacts the driving inclined surface (911).

9. The antifreeze structure of the front trigger water gun according to claim 5, characterized in that The valve stem (6) is provided with a limiting outer shoulder (64) located above the driving hole (61), and the water inlet channel (71) is provided with a limiting inner shoulder (72) located above the limiting outer shoulder. The valve stem (6) moves upward and drives the limiting inner shoulder (72) to contact the limiting outer shoulder (64), thereby forming an upward movement stroke of the valve stem (6).

10. The antifreeze structure of the front trigger water gun according to claim 2, characterized in that The water inlet joint (3) is threadedly and sealingly connected to the water inlet hole (81) of the water inlet seat (8).

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