Thumb type water gun anti-freezing structure

Abstract

The utility model discloses a thumb-type water gun anti-freezing structure which is mainly suitable for internal anti-freezing of a water gun, structurally comprises a gun body, a water inlet channel, a water-shaped spray head, a water inlet joint, a valve core, a thumb switch and the like, and is mainly characterized in that a water inlet adjacent to the water inlet joint is formed in the tail part of the gun body, and a valve rod and an elastic element are arranged in the gun body; one end of the valve rod close to the water inlet is provided with a valve clack, and the other end of the valve rod is contacted with the valve core; in this way, the thumb switch drives the valve element to rotate forwards and backwards, the valve rod can be synchronously pushed to drive the valve clack to open the water inlet, or the elastic element synchronously and elastically pushes the valve rod to drive the valve clack to close the water inlet, and inflow water of the water inlet connector is prevented from entering the gun body; therefore, along with closing of the water inlet, residual water cannot appear in the water inlet channel of the gun body, the risk that the residual water expands due to freezing under the freezing condition to crack the gun body is avoided, a good anti-freezing effect can be achieved, and a client can normally use the anti-freezing gun under the freezing weather condition.

Description

Technical Field

[0001] The utility model relates to an antifreeze structure applied in a water gun, in particular to a thumb-type water gun antifreeze structure. Background Art

[0002] At present, the structure of a thumb-type water gun is usually composed of a gun body, a water inlet channel in the gun body, a water-shaped nozzle at the head of the gun body, and a water inlet joint at the rear of the gun body. The water inlet joint, the water inlet channel, and the water-shaped nozzle are sealed and connected in sequence. At the same time, a valve core is also provided in the gun body, and a thumb switch is provided outside the gun body, and the thumb switch drives the valve core to rotate to seal and open and close the water inlet channel. However, the thumb switch and the valve core are usually installed close to the water-shaped nozzle. As a result, after the thumb switch drives the valve core to rotate and close the water inlet channel, the water entering from the water inlet joint will always remain in the water inlet channel of the gun body. When the water gun is in a frozen outdoor environment, there is often 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 utility model is to overcome the defects of the prior art and provide a thumb-type water gun antifreeze structure which can prevent residual water from appearing in the gun body after it is closed, thereby preventing the residual water from expanding due to freezing under freezing conditions and cracking the gun body.

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

[0005] A thumb-type water gun antifreeze structure comprises a gun body, a water inlet channel in the gun body, a water-shaped nozzle at the head of the gun body and a water inlet joint at the rear of the gun body, wherein the water inlet joint, the water inlet channel and the water-shaped nozzle are sealed and connected in sequence; a valve core is provided in the gun body, a thumb switch is provided outside the gun body, a water inlet adjacent to the water inlet joint is provided at the rear of the gun body, a valve stem and an elastic element are provided in the gun body, a valve flap is provided at one end of the valve stem close to the water inlet, and the other end of the valve stem contacts the valve core; the thumb switch drives the valve core to rotate forward and reverse, and synchronously pushes the valve stem to drive the valve flap to open the water inlet, or the elastic element synchronously and elastically pushes the valve stem to drive the valve flap to close the water inlet.

[0006] The gun body is provided with an inner plug head which is installed and fixed by the tail of the gun body. The inner plug head is provided with a water inlet hole and a mounting hole which are coaxially connected, and a water inlet is formed between the water inlet hole and the mounting hole.

[0007] The diameter of the water inlet is smaller than the diameter of the water inlet hole, thereby forming an inner shoulder between the water inlet and the water inlet hole. The valve stem is provided with an outer shoulder, and the elastic element is sleeved outside the valve stem. The two ends of the elastic element are elastically pushed on the outer shoulder and the inner shoulder respectively, and under normal circumstances, the valve stem is elastically pushed to drive the valve disc to seal and close the water inlet.

[0008] The outer diameter of the outer shoulder is smaller than the aperture of the water inlet hole.

[0009] The port of the water inlet is provided with a side water outlet, and the side water outlet is connected to the water inlet and the water inlet channel respectively.

[0010] The side water outlet is a U-shaped notch arranged on the hole wall of the water inlet port.

[0011] A flat shaft is provided in the middle of the valve core, and the cross-section of the flat shaft is cam-shaped; the thumb switch drives the valve core to rotate, and drives the flat shaft to contact the valve stem with a convex surface, and then synchronously pushes the valve stem to drive the valve disc to open the water inlet; the thumb switch drives the valve core to rotate, and drives the flat shaft to contact the valve stem with a flat surface, and then the valve stem is pushed by the synchronous elastic force of the elastic element to drive the valve disc to close the water inlet.

[0012] The valve flap is a sealing ring embedded and fixed on the end of the valve stem, and the end of the valve stem drives the sealing ring to be located in the installation hole.

[0013] The tail of the gun body is provided with a decorative tail sleeve fixed by an inner plug tube. The inner plug tube is simultaneously threadedly connected in the mounting hole and fixes the inner plug head in the gun body.

[0014] The water inlet joint is threadedly connected in the decorative tail sleeve, and forms a sealed communication between the water inlet joint and the inner plug tube.

[0015] Compared with the prior art, the present invention mainly provides a water inlet adjacent to the water inlet joint at the tail end of the gun body, and a valve stem and an elastic element are provided in the gun body. A valve flap is provided at one end of the valve stem close to the water inlet, and the other end of the valve stem contacts the valve core. In this way, when the thumb switch drives the valve core to rotate forward and reverse, the valve stem can be pushed synchronously to drive the valve flap to open the water inlet, or the elastic element can synchronously push the valve stem to drive the valve flap to close the water inlet. Therefore, with the closing of the water inlet, no residual water will appear in the water inlet channel of the gun body, and the risk of the residual water cracking the gun body due to ice expansion under freezing conditions is avoided, so it can play a better anti-freeze effect. 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 This is a schematic diagram of the structure between the thumb switch, valve core, valve stem, valve disc and water inlet when the water gun is in the open state.

[0019] Figure 4This is a schematic diagram of the structure between the thumb switch, valve core, valve stem, valve disc and water inlet when the water gun is in the closed state.

[0020] Figure 5 It is a structural diagram of the valve core.

[0021] Figure 6 Schematic diagram of the valve stem structure.

[0022] Figure 7 It is a cross-sectional view of the inner plug head.

[0023] Figure 8 This is the outer appearance of the inner plug. DETAILED DESCRIPTION

[0024] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 8 As shown, 1. gun body, 11. gun head, 12. handle, 13. flexible sleeve, 14. water inlet channel, 2. water-shaped nozzle, 3. water inlet joint, 31. sealing gasket, 32. decorative tail sleeve, 4. valve core, 41. flat shaft, 42. toggle block, 5. thumb switch, 6. valve stem, 61. outer shoulder, 7. elastic element, 8. valve disc, 9. inner plug head, 91. water inlet hole, 92. mounting hole, 93. water inlet, 94. inner shoulder, 95. side water outlet, 10. inner plug tube.

[0026] A thumb-type water gun antifreeze structure, such as Figure 1 、 Figure 2 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.

[0027] Among them, the gun body 1 is composed of a vertical handle 12 and a gun head 11 bent at the top of the handle. The gun body 1 is covered with a flexible sleeve 13 to improve the texture and enhance the grip friction. A water inlet channel 14 is provided in the gun body 1 along the axis, and the top of the water inlet channel passes through the head of the gun head 11, and the bottom end of the water inlet channel passes through the tail of the handle 12, so the water inlet joint 3, the water inlet channel 14 and the water-shaped nozzle 2 are sealed and connected in sequence.

[0028] The gun body 1 is provided with a valve core 4, and a thumb switch 5 is provided outside the gun body 1. The valve core 4 and the thumb switch 5 are located at the bend between the gun head 11 and the handle 12. In addition, the valve core 4 is horizontally installed in the gun body 1, and a flat shaft 41 is provided in the middle of the valve core. The cross section of the flat shaft is cam-shaped, and the thumb switch 5 can be rotated forward and backward along an arc by the user's finger. Figure 1As shown, relative to the reciprocating rotation of the head and tail, the forward and backward rotation of the thumb switch 5 can drive the valve core 4 to rotate about the horizontal axis through the toggle block 42 on the valve core 4. Of course, O-rings are also provided at both ends of the valve core 4 to form a dynamic seal when the valve core rotates.

[0029] The tail of the gun body 1 is provided with a water inlet 93 adjacent to the water inlet connector 3. The specific structure is as follows: the gun body 1 is provided with an inner plug 9 which is inserted and fixed by the tail of the gun body. The inner plug is a tubular component, which has a water inlet hole 91 and a mounting hole 92 which are coaxially connected. Figure 1 As shown, the water inlet hole 91 is designed above the mounting hole 92 , and a water inlet 93 is formed between the water inlet hole 91 and the mounting hole 92 .

[0030] The rear end of the gun body 1 is provided with a decorative tail sleeve 32 secured by an inner plug tube 10. The inner plug tube 10 is also threaded into the mounting hole 92 of the inner plug head 9, thereby securing the inner plug head within the gun body 1. The water inlet connector 3 is threaded into the decorative tail sleeve 32, and a sealing gasket 31 is used to establish a sealed connection between the water inlet connector 3 and the inner plug tube 10. This allows the water inlet connector 3, inner plug tube 10, decorative tail sleeve 32, and inner plug head 9 to be compactly and reliably mounted at the rear end of the gun body 1, while also ensuring that the water inlet connector 3, inner plug tube 10, and inner plug head 9 are in sealed communication with each other.

[0031] The gun body 1 is provided with a valve stem 6 and an elastic element 7; the valve stem 6 is located at one end close to the water inlet 93, i.e. Figure 3 、 Figure 4 The lower end is provided with a valve flap 8, which is embedded and fixed to 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 end of the valve stem needs to be located in the mounting hole 92 below the water inlet 93; the other end of the valve stem 6 contacts the valve core 4, that is, Figure 3 、 Figure 4 The upper end shown is in contact with the flat shaft 41 of the valve core 4.

[0032] The elastic element 8 is mounted 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 8 are elastically pushed on the outer shoulder 61 and the inner shoulder 94 respectively; wherein, the outer shoulder 61 is provided on the outer circumferential surface of the middle part of the valve stem 6, and the inner shoulder 94 is formed between the water inlet 93 and the water inlet hole 91 because the diameter of the water inlet 93 is smaller than the diameter of the water inlet hole 91; at this time, Figure 3 、 Figure 4 As shown, the upper end of the elastic element 8 elastically pushes on the outer shoulder 61, and the lower end of the elastic element 8 elastically pushes on the inner shoulder 94. Therefore, under normal conditions, the elastic element 8 will elastically push the valve stem 6 to move upward, thereby driving the valve disc 8 to seal and close the water inlet 93.

[0033] At the same time, the outer diameter of the outer shoulder 61 is smaller than the aperture of the water inlet hole 91, so it can directly enter and exit the water inlet hole, and the elastic element 8 is usually located in the water inlet hole 91. In actual use, the water inlet hole can also serve as a guide hole for the lifting and lowering movement of the valve stem 6 to prevent the valve stem 6 from moving out of position and causing the valve disc 8 to fail to effectively seal and close the water inlet 93.

[0034] The port of the water inlet hole 91 is provided with a side water outlet 95, and the side water outlet is respectively connected to the water inlet hole 91 and the water inlet channel 14; the side water outlet 95 is a U-shaped groove arranged on the hole wall of the port of the water inlet hole 91. In this embodiment, a pair of centrally symmetrically arranged side water outlets 95 are designed to ensure the reliability of side water outlet.

[0035] The working process of the utility model is as follows: When the thumb switch 5 drives the valve core 4 as Figure 1 As shown, the flat shaft 41 is rotated and drives the convex surface to contact the upper end of the valve stem 6, thereby synchronously pushing the valve stem downward, thereby driving the valve disc 8 to open the water inlet 93 to achieve normal use of the water gun. At this time, the elastic element 8 is also in a state of compression and accumulation of potential energy due to the downward movement of the valve stem 6; when the thumb switch 5 drives the valve core 4 as shown Figure 2 As shown in the figure, the flat shaft 41 is driven to contact the upper end of the valve stem 6 with a flat surface. At this time, the potential energy of the compression of the elastic element 8 is released, so that the valve stem 6 is pushed upward by the synchronous elastic push of the elastic element 8, thereby driving the valve flap 8 to close the water inlet 93 to prevent the water from the water inlet connector 3 from entering the gun body 1.

[0036] Therefore, with the water inlet 93 closed, there will be no residual water in the water inlet channel 14 of the gun body 1, avoiding the risk of the residual water freezing and expanding to crack the gun body 1 under freezing conditions. Therefore, it can play a better anti-freeze role, allowing customers to use it normally under freezing weather conditions.

[0037] 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. A thumb-type water gun antifreeze structure, comprising a gun body (1), a water inlet channel (14) in the gun body, a water-shaped nozzle (2) at the head of the gun body, and a water inlet joint (3) at the rear of the gun body, wherein the water inlet joint (3), the water inlet channel (14) and the water-shaped nozzle (2) are sequentially connected in a sealed manner; a valve core (4) is provided in the gun body (1), and a thumb switch (5) is provided outside the gun body, characterized in that The tail of the gun body (1) is provided with a water inlet (93) adjacent to the water inlet joint (3), and a valve stem (6) and an elastic element (7) are provided in the gun body (1). One end of the valve stem (6) close to the water inlet (93) is provided with a valve flap (8), and the other end of the valve stem contacts the valve core (4); the thumb switch (5) drives the valve core (4) to rotate forward and reverse, and simultaneously pushes the valve stem (6) to drive the valve flap (8) to open the water inlet (93), or the elastic element (7) synchronously elastically pushes the valve stem (6) to drive the valve flap (8) to close the water inlet (93).

2. The thumb-type water gun antifreeze structure according to claim 1 is characterized in that The gun body (1) is provided with an inner plug head (9) which is inserted and fixed by the tail of the gun body. The inner plug head is provided with a water inlet hole (91) and a mounting hole (92) which are coaxially connected, and a water inlet (93) is formed between the water inlet hole and the mounting hole.

3. The thumb-type water gun antifreeze structure according to claim 2 is characterized in that The diameter of the water inlet (93) is smaller than the diameter of the water inlet hole (91), thereby forming an inner shoulder (94) between the water inlet and the water inlet hole. The valve stem (6) is provided with an outer shoulder (61). The elastic element (7) is sleeved on the outside of the valve stem (6). The two ends of the elastic element are elastically pushed on the outer shoulder (61) and the inner shoulder (94) respectively, and under normal conditions, the elastic pushes the valve stem (6) to drive the valve disc (8) to seal and close the water inlet (93).

4. The thumb-type water gun antifreeze structure according to claim 3 is characterized in that The outer diameter of the outer shoulder (61) is smaller than the diameter of the water inlet hole (91).

5. The thumb-type water gun antifreeze structure according to claim 2 is characterized in that The end of the water inlet hole (91) is provided with a side water outlet (95), and the side water outlet is connected to the water inlet hole (91) and the water inlet channel (14).

6. The thumb-type water gun antifreeze structure according to claim 5, characterized in that The side water outlet (95) is a U-shaped notch provided on the hole wall of the water inlet hole (91).

7. The thumb-type water gun antifreeze structure according to claim 1 is characterized in that A flat shaft (41) is provided in the middle of the valve core (4), and the cross section of the flat shaft is cam-shaped; the thumb switch (5) drives the valve core (4) to rotate, and drives the flat shaft (41) to contact the valve stem (6) with a convex surface, thereby synchronously pushing the valve stem to drive the valve disc (8) to open the water inlet (93); the thumb switch (5) drives the valve core (4) to rotate, and drives the flat shaft (41) to contact the valve stem (6) with a flat surface, thereby causing the valve stem to be synchronously elastically pushed by the elastic element (7) to drive the valve disc (8) to close the water inlet (93).

8. The thumb-type water gun antifreeze structure according to claim 2 is characterized in that The valve flap (8) is a sealing ring embedded and fixed on the end of the valve stem (6), and the end of the valve stem drives the sealing ring to be located in the mounting hole (92).

9. The thumb-type water gun antifreeze structure according to claim 2, characterized in that The tail of the gun body (1) is provided with a decorative tail sleeve (32) fixed by an inner plug tube (10). The inner plug tube (10) is simultaneously threadedly connected in the mounting hole (92) and fixes the inner plug head (9) in the gun body (1).

10. The thumb-type water gun antifreeze structure according to claim 1, characterized in that The water inlet connector (3) is threadedly connected to the decorative tail sleeve (32), and forms a sealed communication between the water inlet connector (3) and the inner plug tube (10).

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