A trigger spray pump structure

Abstract

The present invention discloses a trigger spray pump structure, which includes a pump body. A bottle cap lock is provided on the pump body. The pump body is provided with a liquid inlet, a liquid outlet and a suction channel. A metering valve chamber is further provided in the pump body. A through hole is opened on the metering valve chamber. A first check valve is provided in the suction channel, and a second check valve is also provided in the suction channel. A piston is provided in the metering valve chamber. A vent hole is opened on the pump body. A trigger is movably connected to the pump body. An elastic reset member capable of resetting the trigger is further included. An atomizing nozzle is rotatably connected at the liquid outlet. The structure of the present invention is simple. When the trigger is pressed, the piston squeezes the metering valve chamber, the first check valve closes, and the second check valve opens to discharge the air in the metering valve chamber. When the trigger is released, the reset member drives the trigger to reset. Under the action of suction, the first check valve opens and the second check valve closes. The liquid in the bottle body enters the metering valve chamber from the through hole. At this time, when the trigger is pressed again, the second check valve opens to achieve spraying.

Description

Technical Field

[0001] The present invention relates to a trigger spray pump structure.

Background Art

[0002] A spray pump is a device that uses the siphon effect to turn a liquid medicine or other liquid into a mist and evenly spray it onto other objects. It consists of a device for compressing air, a suction pipe, an atomizing nozzle, etc. In such products, a piston moves in a pump body, causing the gas in the pump body to flow, reducing the pressure. The pressure outside the pump body remains unchanged, creating a pressure difference between the inside and outside of the pump body. Through this pressure difference, the liquid is guided out of the pump body. When the liquid encounters a high-speed air flow, it is instantly atomized.

[0003] In existing spray pumps, after pressing the trigger to spray, the entire device usually resets through a spring provided inside the pump body. The structure is complex, making the entire assembly process rather cumbersome. The spring will rust after long-term contact with the solution inside the pump body, affecting the use effect of the liquid. Moreover, during transportation, it is very easy to press the trigger, causing the liquid in the container to leak, polluting the environment and affecting the use.

[0004] The present invention is precisely developed based on the above deficiencies.

Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a trigger spray pump structure with a simple structure, convenient assembly and not easy to leak.

[0006] To solve the above technical problem, the present invention adopts the following technical solution: A trigger spray pump structure, characterized in that it includes a pump body, and a lock cap capable of fixedly connecting it to a bottle body is provided on the pump body. An inlet, an outlet and a suction channel connecting the inlet and the outlet are provided on the pump body. A metering valve chamber is further provided inside the pump body. A through hole communicating with the suction channel is opened on the metering valve chamber. A first one-way valve for allowing the liquid to flow directionally from the inlet into the through hole is provided in the suction channel. A second one-way valve for allowing the liquid to flow directionally from the through hole out of the outlet is further provided in the suction channel. A piston capable of reciprocating in the metering valve chamber and sucking or discharging the liquid into or out of the metering valve chamber is provided in the metering valve chamber. A vent hole capable of communicating the inside of the bottle body with the outside of the bottle body when the piston squeezes the metering valve chamber is further opened on the pump body. A trigger capable of being pressed by hand and driving the piston to squeeze the metering valve chamber is movably connected to the pump body. An elastic reset member for resetting the trigger is further included. An atomizing nozzle is rotatably connected at the outlet.

[0007] A trigger spray pump structure as described above is characterized in that a stepped shaft is provided in the suction channel, and the stepped shaft is provided with a first elastic sheet and a second elastic sheet in sequence from bottom to top, the through hole is located between the first elastic sheet and the second elastic sheet, and the suction channel is provided with a first step and a second step for the lower end surfaces of the first elastic sheet and the second elastic sheet to lean against, respectively, the first elastic sheet, the first step and the stepped shaft constitute the first one-way valve, and the second elastic sheet, the second step and the stepped shaft constitute the second one-way valve.

[0008] The trigger spray pump structure as described above is characterized in that the elastic reset member is an arc-shaped structure, and one end of the elastic reset member is connected to the trigger, and the other end is connected to the pump body.

[0009] The trigger spray pump structure as described above is characterized in that a blocking mechanism is provided between the atomizing nozzle and the liquid outlet, which can block the liquid from spraying out after the atomizing nozzle rotates a certain angle.

[0010] A trigger spray pump structure as described above is characterized in that the blocking mechanism includes a central column arranged at the liquid outlet and capable of extending into the atomizing nozzle, and a liquid outlet channel capable of connecting the liquid outlet and the liquid outlet of the atomizing nozzle is provided between the inner wall of the atomizing nozzle and the central column.

[0011] A trigger spray pump structure as described above is characterized in that a first groove connected to a liquid outlet of the atomizing nozzle is provided at the inner bottom of the atomizing nozzle, a second groove connected to the liquid outlet is provided on the side wall of the atomizing nozzle, and a third groove connected to the first groove and the second groove is provided at the end of the center column, and the first groove, the second groove and the third groove on the center column cooperate to form the liquid outlet channel.

[0012] The trigger spray pump structure as described above is characterized in that the blocking mechanism further includes a toggle button which is arranged on the atomizing nozzle and can drive the atomizing nozzle to rotate.

[0013] The trigger spray pump structure as described above is characterized in that the trigger is an arc-shaped structure, and the upper end of the trigger is rotatably connected to the pump body.

[0014] The trigger spray pump structure as described above is characterized in that a shell is provided outside the pump body.

[0015] Compared with the prior art, the trigger spray pump structure of the present invention achieves the following effects:

[0016] 1. The structure of the present invention is simple. A first one-way valve is provided in the suction channel to allow liquid to flow directionally from the liquid inlet into the through hole, and a second one-way valve is also provided in the suction channel to allow liquid to flow directionally from the through hole out of the liquid outlet. When the trigger is pressed, the piston squeezes the metering valve chamber. Under the action of the thrust, the first one-way valve closes and the second one-way valve opens to discharge the air in the metering valve chamber. When the trigger is released, the reset member drives the trigger to reset. At this time, the metering valve chamber is in a negative pressure state. Under the action of the suction force, the first one-way valve opens and the second one-way valve closes. The liquid in the bottle body enters the metering valve chamber from the through hole. At this time, when the trigger is pressed again, the second one-way valve opens and the liquid in the metering valve chamber flows out in the direction of the second one-way valve to achieve spraying.

[0017] 2. An elastic reset member that can reset the trigger after it is pressed is provided between the trigger and the pump body of the present invention, eliminating the need to add a spring inside the pump and avoiding the influence of spring rust on the use effect of the liquid.

[0018] 3. A blocking mechanism that can block the liquid spray after the atomizing nozzle rotates a certain angle is provided between the atomizing nozzle and the liquid outlet of the present invention. Spraying or blocking the spray can be achieved by rotating the atomizing nozzle, avoiding accidental pressing of the trigger during transportation and causing liquid leakage.

Description of the Drawings

[0019] The following further details the specific embodiments of the present invention in conjunction with the drawings, where:

[0020] Figure 1 is the perspective view of the present invention;

[0021] Figure 2 is the cross-sectional view of the present invention;

[0022] Figure 3 is the exploded view of the present invention;

[0023] Figure 4 is the cross-sectional view of the trigger of the present invention after being pressed;

[0024] Figure 5 is the cross-sectional view of the present invention after the trigger is released;

[0025] Figure 6 is the cross-sectional view of the atomizing nozzle of the present invention;

[0026] Figure 7 is the internal view of the atomizing nozzle of the present invention;

[0027] Figure 8 is Figure 4 the enlarged view of part A in

[0028] Figure 9 is Figure 5 the enlarged view of part B in

[0029] Among them, 1. pump body; 101. liquid inlet; 102. liquid outlet; 103. suction channel; 104. vent hole; 11. first step; 12. second step; 13. central column; 131. third groove; 2. bottle cap lock; 3. metering valve chamber; 31. through hole; 4. straw; 5. stepped shaft; 51. first elastic piece; 52. second elastic piece; 6. piston; 7. trigger; 8. elastic reset member; 9. atomizing nozzle; 91. first groove; 92. second groove; 93. toggle button; 20. housing.

Specific Embodiments

[0030] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0031] As Figures 1 to 9 shown, in this embodiment, a trigger spray pump structure includes a pump body 1. A bottle cap lock 2 capable of fixedly connecting it to the bottle body 10 is provided on the pump body 1. A liquid inlet 101, a liquid outlet 102, and a suction channel 103 connecting the liquid inlet 101 and the liquid outlet 102 are provided on the pump body 1. A metering valve chamber 3 is further provided in the pump body 1. A through hole 31 communicating with the suction channel 103 is opened on the metering valve chamber 3. A first one-way valve for allowing liquid to flow directionally from the liquid inlet 101 into the through hole 31 is provided in the suction channel 103. A second one-way valve for allowing liquid to flow directionally from the through hole 31 out of the liquid outlet 102 is further provided in the suction channel 103. A piston 6 capable of reciprocating in the metering valve chamber 3 and sucking or discharging liquid into or out of the metering valve chamber 3 is provided in the metering valve chamber 3. A vent hole 104 for communicating the inside of the bottle body 10 with the outside of the bottle body 10 when the piston 6 presses the metering valve chamber 3 is further opened on the pump body 1. The setting of the vent hole can ensure that the pressure inside the bottle body is consistent with the outside, preventing the bottle body from deforming when the piston sucks the liquid in the bottle body. A trigger 7 that can be pressed by hand and drives the piston 6 to press the metering valve chamber 3 is movably connected to the pump body 1. An elastic reset member 8 for resetting the trigger 7 is further included. An atomizing nozzle 9 is rotatably connected to the liquid outlet 102.

[0032] When the trigger 7 is pressed, the elastic reset member 8 connected between the trigger 7 and the body 1 will be stressed and deformed. When the trigger 7 is released, the elastic reset member 8 drives the trigger 7 to reset through its own elastic force. The structure is simple and there is no need to set a spring in the pump body, avoiding the spring from rusting and polluting the liquid.

[0033] After pressing the trigger 7, the piston 6 squeezes the metering valve chamber 3, and the gas in the metering valve chamber 3 is discharged from the through hole 31. Under the action of the thrust, the first one-way valve closes and the second one-way valve opens, and the gas is discharged from the second one-way valve; when the trigger 7 is released, the elastic reset member 8 drives the trigger 7 to reset. At this time, a negative pressure is formed in the metering valve chamber. Under the action of the suction force, the first one-way valve opens and the second one-way valve closes. The liquid in the bottle enters the metering valve chamber through the straw 4 from the through hole 31. When the trigger 7 is pressed again, the first one-way valve closes and the second one-way valve opens, and the liquid in the metering valve chamber 3 flows out from the second one-way valve to achieve spraying.

[0034] As Figures 1 to 9 shown, in this embodiment, a stepped shaft 5 is provided in the suction channel 103. The stepped shaft 5 is successively provided with a first elastic piece 51 and a second elastic piece 52 from bottom to top. The through hole 31 is located between the first elastic piece 51 and the second elastic piece 52. The suction channel 103 is respectively provided with a first step 11 and a second step 12 for the lower end surfaces of the first elastic piece 51 and the second elastic piece 52 to abut against. The first elastic piece 51, the first step 11 and the stepped shaft 5 constitute the first one-way valve, and the second elastic piece 52, the second step 12 and the stepped shaft 5 constitute the second one-way valve. When Figure 8 the piston 6 moves to the right, the first elastic piece 51 is pressed against the first step 11 to prevent the liquid or air in the liquid outlet from flowing back into the metering valve chamber. The second elastic piece 52 is pressed upward to warp, and the gas or liquid in the metering valve chamber 3 is discharged from the gap between the second elastic piece 52 and the second step 12; when Figure 9 the piston 6 moves to the left, under the action of the suction force, the second elastic piece 52 is closely attached to the second step 12, the first elastic piece 51 warps upward, and the liquid in the bottle enters the metering valve chamber 3 from the gap between the first elastic piece 51 and the first step 11.

[0035] As Figures 1 to 9 shown, in this embodiment, the elastic reset member 8 is of an arc structure, and one end of the elastic reset member 8 is connected to the trigger 7 and the other end is connected to the pump body 1. When the trigger is pressed, the two ends of the arc structure will move closer to the middle. When the trigger is released, the two ends of the arc structure will move in opposite directions to return to their original state, thereby driving the trigger 7 to return to its original position.

[0036] As Figures 1 to 9 shown, in this embodiment, a blocking mechanism is provided between the atomizing nozzle 9 and the liquid outlet 102, which can block the liquid from spraying out after the atomizing nozzle 9 rotates a certain angle; the atomizing nozzle can perform a circular motion, and when the atomizing nozzle is rotated, the liquid can be sprayed out from the atomizing nozzle or the liquid spraying from the atomizing nozzle can be blocked.

[0037] As Figures 1 to 9As shown, in this embodiment, the blocking mechanism includes a central column 13 provided at the liquid outlet 102 and capable of extending into the atomizing nozzle 9. An liquid outlet channel that can communicate the liquid outlet 102 with the liquid outlet of the atomizing nozzle 9 is provided between the inner wall of the atomizing nozzle and the central column 13. Through the cooperation between the central column 13 and the inner wall of the atomizing nozzle, the liquid entering the atomizing nozzle can be dispersed, and when the liquid is ejected, it can be more uniform, the spray particle size is small, and the atomization effect is gentle.

[0038] As Figures 1 to 9 shown, in this embodiment, a first groove 91 communicating with the liquid outlet of the atomizing nozzle 9 is provided at the inner bottom of the atomizing nozzle 9, a second groove 92 capable of communicating with the liquid outlet 102 is provided on the side wall of the atomizing nozzle 9, and a third groove 131 capable of communicating the first groove 91 with the second groove 92 is provided at the end of the central column 13. The first groove 91, the second groove 92 and the third groove 131 on the central column 13 cooperate and communicate to form the liquid outlet channel. In this embodiment, the first groove is spiral, which can disperse the liquid and make it more uniform when ejected. Rotating the atomizing nozzle can make the third groove 131 communicate with the first groove 91 and the second groove 92, so that the liquid is ejected from the atomizing nozzle to achieve unlocking. Continuing to rotate the atomizing nozzle, the third groove 131 will be misaligned with the first groove 91 and the second groove 92, causing the liquid outlet channel to be blocked and preventing liquid from flowing out, achieving blocking.

[0039] As Figures 1 to 9 shown, in this embodiment, the blocking mechanism includes a toggle button 93 provided on the atomizing nozzle 9 and capable of driving the atomizing nozzle 9 to rotate. By operating the toggle button 93, the atomizing nozzle 9 can be driven to rotate to block the liquid outlet, which is convenient to operate.

[0040] As Figures 1 to 9 shown, in this embodiment, the trigger 7 is of an arc structure, and the upper end of the trigger 7 is rotatably connected to the pump body 1; when the trigger is pressed, the upper end of the trigger rotates along the connection point between the trigger and the pump body, and the piston is connected to the middle of the trigger.

[0041] As Figures 1 to 9 shown, in this embodiment, a housing 20 is provided outside the pump body 1 to further protect the pump body 1.

[0042] The above embodiments are only the preferred solutions of the present invention. The present invention may have other implementation solutions, such as reasonably combining the technical solutions described in multiple embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope set by the claims of this application.

Claims

1. A trigger spray pump structure, characterized in that, it includes a pump body (1), a lock bottle cap (2) capable of fixedly connecting it to a bottle body (10) is provided on the pump body (1), a liquid inlet (101), a liquid outlet (102) and a suction channel (103) connecting the liquid inlet (101) and the liquid outlet (102) are arranged on the pump body (1), a metering valve chamber (3) is further arranged in the pump body (1), a through hole (31) communicating with the suction channel (103) is opened on the metering valve chamber (3), a first one-way valve for allowing liquid to flow directionally from the liquid inlet (101) into the through hole (31) is arranged in the suction channel (103), a second one-way valve for allowing liquid to flow directionally from the through hole (31) out of the liquid outlet (102) is further arranged in the suction channel (103), a piston (6) capable of reciprocating in the metering valve chamber (3) and sucking or discharging liquid into or out of the metering valve chamber (3) is arranged in the metering valve chamber (3), a ventilation hole (104) capable of communicating the inside and the outside of the bottle body (10) when the piston (6) presses the metering valve chamber (3) is further opened on the pump body (1), a trigger (7) capable of being pressed by hand and driving the piston (6) to press the metering valve chamber (3) is movably connected to the pump body (1), and an elastic reset member (8) for resetting the trigger (7) is further included, and an atomizing nozzle (9) is rotatably connected at the liquid outlet (102); a stepped shaft (5) is arranged in the suction channel (103), a first elastic piece (51) and a second elastic piece (52) are sequentially arranged on the stepped shaft (5) from bottom to top, the through hole (31) is located between the first elastic piece (51) and the second elastic piece (52), the suction channel (103) is respectively provided with a first step (11) and a second step (12) for the lower end surfaces of the first elastic piece (51) and the second elastic piece (52) to abut against, and the first elastic piece (51), the first step (11) and the stepped shaft (5) constitute the first one-way valve, and the second elastic piece (52), the second step (12) and the stepped shaft (5) constitute the second one-way valve; when the piston (6) moves to the right, the first elastic piece (51) is pressed against the first step (11) tightly under pressure, the second elastic piece (52) is warped upward under pressure, and the gas or liquid in the metering valve chamber (3) is discharged from the gap between the second elastic piece (52) and the second step (12); when the piston (6) moves to the left, the second elastic piece (52) is tightly attached to the second step (12), the first elastic piece (51) is warped upward, and the liquid in the bottle body enters the metering valve chamber (3) from the gap between the first elastic piece (51) and the first step (11); the elastic reset member (8) is of an arc structure, and one end of the elastic reset member (8) is connected to the trigger (7), and the other end is connected to the pump body (1).

2. A trigger spray pump structure according to claim 1, characterized in that, A blocking mechanism is provided between the atomizing nozzle (9) and the liquid outlet (102) and is capable of blocking the liquid from spraying out after the atomizing nozzle (9) rotates at a certain angle.

3. A trigger spray pump structure according to claim 2, It is characterized in that The blocking mechanism comprises a central column (13) arranged at the liquid outlet (102) and capable of extending into the atomizing nozzle (9); a liquid outlet channel capable of connecting the liquid outlet (102) and the liquid outlet of the atomizing nozzle (9) is arranged between the inner wall of the atomizing nozzle and the central column (13).

4. A trigger spray pump structure according to claim 3, It is characterized in that The inner bottom of the atomizing nozzle (9) is provided with a first groove (91) connected to the liquid outlet of the atomizing nozzle (9); the side wall of the atomizing nozzle (9) is provided with a second groove (92) capable of being connected to the liquid outlet (102); the end of the central column (13) is provided with a third groove (131) capable of connecting the first groove (91) and the second groove (92); the first groove (91), the second groove (92) and the third groove (131) on the central column (13) cooperate to communicate with each other to form the liquid outlet channel.

5. A trigger spray pump structure according to claim 4, It is characterized in that The blocking mechanism also includes a toggle button (93) which is arranged on the atomizing nozzle (9) and can drive the atomizing nozzle (9) to rotate.

6. A trigger spray pump structure according to claim 1, It is characterized in that The trigger (7) is an arc-shaped structure, and the upper end of the trigger (7) is rotatably connected to the pump body (1).

7. A trigger spray pump structure according to claim 1, It is characterized in that A casing (20) is provided outside the pump body (1).

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