All-plastic combined atomizing pump

Abstract

The utility model discloses an all-plastic combined atomizing pump which comprises a bottle locking cap capable of being fixed on a liquid containing bottle, a pump body is installed on the bottle locking cap, the lower end of the pump body is connected with a suction pipe through a communication opening, and a liquid storage cavity communicated with the suction pipe and used for liquid to flow in and a pumping assembly capable of sliding up and down relative to the pump body are arranged in the pump body. A plastic one-way valve capable of controlling the communicating opening to be opened to enable liquid to flow into the liquid storage cavity from the bottle body is arranged in the liquid storage cavity, a pressing head capable of driving the pumping assembly to move downwards to enable air pressure to be generated in the liquid storage cavity to extrude the liquid in the liquid storage cavity to flow out is arranged at the upper end of the pumping assembly, and a spray nozzle for spraying the liquid is arranged on the pressing head. A plastic elastic piece which elastically presses the pressing head to drive the pumping assembly to move upwards to generate negative pressure in the liquid storage cavity so that the plastic one-way valve can be opened and liquid can be sucked into the liquid storage cavity is arranged between the bottle locking cap and the pressing head, the upper end of the plastic elastic piece abuts against the lower end of the pressing head, and the lower end of the plastic elastic piece abuts against the bottle locking cap. And the plastic elastic piece is provided with an elastic wall which is extruded to deform when being pressed down.

Description

[Technical field]

[0001] The utility model relates to an all-plastic combined spray pump. [Background technology]

[0002] Liquid products are usually packed in special bottles. When spraying is needed, the spray pump head is pressed to make the liquid in the bottle spray out from the extremely fine micropores at the mist point at high pressure and diffuse in the air in the form of spray.

[0003] At present, the structure of a spray pump usually includes a button head, a locking bottle cap, a pump body, a pump rod, a piston, a spring, a ball-shaped one-way valve and a straw connected to the bottom of the pump body. The spring of the spray pump is usually made of metal, while the ball-shaped one-way valve is made of a glass ball, and the remaining parts are plastic parts. When recycling and reshaping this type of spray pump, the metal spring and the glass ball valve need to be manually removed separately before the other plastic parts can be reshaped, which is time-consuming and labor-intensive and is not conducive to recycling.

[0004] Therefore, the present invention is just produced based on the above shortcomings. [Utility Model Content]

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a fully plastic combined spray pump which has a simple structure and is easy to recycle.

[0006] The utility model is realized by the following technical solutions:

[0007] A fully plastic combined spray pump, characterized in that: it comprises a locking bottle cap 1 that can be fixed on a liquid container bottle, a pump body 2 is installed on the locking bottle cap 1, the lower end of the pump body 2 is connected to a suction pipe 3 through a connecting port 21, the pump body 2 is provided with a liquid storage cavity 22 that is connected to the suction pipe 3 and can be used for liquid to flow into, and a pumping component 4 that can slide up and down relative to the pump body 2, the liquid storage cavity 22 is provided with a plastic one-way valve 5 that can control the opening of the connecting port 21 to allow liquid to flow from the bottle into the liquid storage cavity 22, and the upper end of the pumping component 4 is provided with a valve that can drive the pumping component 4 downward A pressing head 6 is provided to generate air pressure in the liquid storage chamber 22 to squeeze the liquid in the liquid storage chamber 22 out. A spray nozzle 7 is provided on the pressing head 6 for spraying the liquid. A plastic elastic member 8 is provided between the bottle lock 1 and the pressing head 6 to press the pressing head 6 to drive the pumping assembly 4 to move upward and reset, so that negative pressure is generated in the liquid storage chamber 22, so that the plastic one-way valve 5 opens to suck the liquid into the liquid storage chamber 22. The upper end of the plastic elastic member 8 is against the lower end of the pressing head 6, and the lower end is pressed against the bottle lock 1. The plastic elastic member 8 is provided with an elastic wall that is squeezed and deformed when pressed.

[0008] The all-plastic combined spray pump as described above is characterized in that the elastic wall comprises an upper elastic wall 82 forming a cylindrical shape with an upper end opening and a lower elastic wall 81 connected to the upper elastic wall 82 forming a cylindrical shape with a lower end opening.

[0009] The all-plastic combined spray pump as described above is characterized in that: the upper elastic wall 82 is in a trumpet shape with a diameter gradually decreasing from top to bottom.

[0010] The all-plastic combined spray pump as described above is characterized in that: the lower elastic wall 81 is connected to the lower end of the upper elastic wall 82 through the arc surface 811, and the arc surface 811 extends to the outer side of the upper elastic wall 82 to form a shoulder.

[0011] The all-plastic combined spray pump as described above is characterized in that: the pressing head 6 is provided with a positioning column 61 with one end inserted into the opening of the upper elastic wall 82 .

[0012] The all-plastic combined spray pump as described above is characterized in that: a cavity 11 is provided at the upper end of the bottle lock cap 1, a mounting boss 12 is provided in the cavity 11 and one end of the mounting boss 12 is inserted into the opening of the lower elastic wall 81, and the pump body 2 is mounted at the lower end of the mounting boss 12.

[0013] The all-plastic combined spray pump as described above is characterized in that: a through hole 13 is provided in the middle of the mounting boss 12, the pumping assembly 4 includes an upper pump rod 41 whose upper end passes through the through hole 13 and the plastic elastic member 8 and is connected to the pressing head 6 and can be driven by the pressing head 6 to move downward relative to the pump body 2, a lower pump rod 42 connected to the lower end of the upper pump rod 41, and a piston 43 sleeved on the lower pump rod 42 and with both ends respectively abutting against the upper pump rod 41 and the lower pump rod 42, the upper pump rod 41 is provided with a liquid outlet channel 411 connected to the spray nozzle 7, the lower pump rod 42 is provided with a liquid inlet 421 sealed by the piston 43, and the liquid inlet 421 is opened after the lower pump rod 42 moves downward relative to the piston 43 so that the emulsion in the liquid storage chamber 22 can enter the liquid outlet channel 411.

[0014] The all-plastic combination spray pump as described above is characterized in that: the pump body 2 is provided with an air replenishing hole 23 for replenishing the liquid from the outside of the bottle lock cap 1 into the liquid containing bottle, and the piston 43 includes a support ring 431 abutting against the lower end of the upper pump rod 41, a sealing ring 432 whose lower end can abut against the lower pump rod 42 to close the liquid inlet 421, an elastic arm 433 connected between the sealing ring 432 and the support ring 431, and an elastic sealing ring 434 provided on the sealing ring 432 and capable of sealing the air replenishing hole 23.

[0015] The all-plastic combination spray pump as described above is characterized in that: the elastic sealing ring 434 is provided with an upper sealing step 4341 and a lower sealing step 4342 that are close to the inner wall of the pump body 2, and the air supply hole 23 is located between the upper sealing step 4341 and the lower sealing step 4342 when closed, and the air supply hole 23 is located above the upper sealing step 4341 when open.

[0016] The all-plastic combined spray pump as described above is characterized in that the plastic one-way valve 5 is a plastic ball.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model replaces metal springs with plastic elastic parts with good rebound performance, replaces traditional glass beads with plastic ball one-way valves, and the remaining components are all made of plastic. When recycling the pressing pump, there is no need to disassemble and take out the spring and the one-way valve, and they can be directly recycled and reshaped, which saves time and labor, and is energy-saving and environmentally friendly.

[0019] 2. In the utility model, the upper end of the lower elastic wall is connected to the upper elastic wall through an arc surface, and the lower elastic wall is easy to bend when squeezed, which effectively reduces the risk of fracture at the connection and prolongs the service life.

[0020] 3. In the utility model, the upper elastic wall is in the shape of a trumpet with a diameter gradually decreasing from top to bottom. When the plastic elastic part is squeezed by the pressing head, the lower elastic wall is easy to deform under a larger pressure. Compared with the upper elastic wall, the lower elastic wall will preferentially undergo elastic deformation. There is a sequence relationship between the elastic deformations. The increasing elastic deformation can effectively reduce the possibility of breakage of the plastic elastic part while providing better elastic force.

Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the structure of the utility model when the outer cover is removed;

[0022] Figure 2 It is an exploded view of the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the plastic elastic member of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the piston of the utility model. [Specific implementation method]

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figures 1 to 4As shown, a fully plastic combined spray pump comprises a locking bottle cap 1 which can be fixed on a liquid containing bottle, a pump body 2 is mounted on the locking bottle cap 1, a suction pipe 3 is connected to the lower end of the pump body 2 through a connecting port 21, a liquid storage chamber 22 which is connected to the suction pipe 3 and can be used for liquid to flow into the pump body 2 is arranged in the pump body 2, a pumping assembly 4 which can slide up and down relative to the pump body 2 is arranged in the liquid storage chamber 22, a plastic one-way valve 5 which can control the opening of the connecting port 21 to allow liquid to flow from the bottle body into the liquid storage chamber 22 is arranged in the liquid storage chamber 22, and a plastic one-way valve 5 which can drive the pumping assembly 4 to move the liquid storage chamber downward is arranged at the upper end of the pumping assembly 4 The air pressure generated in the cavity 22 squeezes the liquid in the liquid storage cavity 22 to flow out of the pressing head 6, and the pressing head 6 is provided with a spray nozzle 7 for the liquid to be sprayed out. A plastic elastic member 8 is provided between the bottle lock 1 and the pressing head 6, which can press the pressing head 6 to drive the pumping assembly 4 to move upward and reset, so that negative pressure is generated in the liquid storage cavity 22, so that the plastic one-way valve 5 opens and the liquid is sucked into the liquid storage cavity 22. The upper end of the plastic elastic member 8 is against the lower end of the pressing head 6, and the lower end is pressed against the bottle lock 1. The plastic elastic member 8 is provided with an elastic wall that is squeezed and deformed when pressed. In a specific implementation, the plastic one-way valve 5 is a plastic ball. The utility model replaces the metal spring with a plastic elastic member with good rebound performance, and replaces the traditional glass beads with a plastic ball one-way valve. The remaining components are all made of plastic. When recycling the pressing pump, it is not necessary to disassemble and take out the spring and the one-way valve, and it can be directly recycled and reshaped, which saves time and labor, and is energy-saving and environmentally friendly.

[0027] Specifically, the elastic wall includes an upper elastic wall 82 which is formed into a cylindrical shape with an open upper end, and a lower elastic wall 81 which is connected to the upper elastic wall 82 and is formed into a cylindrical shape with an open lower end.

[0028] Specifically, the upper elastic wall 82 is in the shape of a trumpet with a gradually decreasing diameter from top to bottom. When the plastic elastic member 8 is squeezed by the pressing head, the lower elastic wall 82 is easily deformed under a larger pressure. Compared with the upper elastic wall 81, the lower elastic wall 82 will be elastically deformed first. There is a sequential relationship between the elastic deformations. The gradually increasing elastic deformation can effectively reduce the possibility of the plastic elastic member breaking while providing a better elastic force.

[0029] Specifically, the lower elastic wall 81 is connected to the lower end of the upper elastic wall 82 through the arc surface 811, and the arc surface 811 extends to the outside of the upper elastic wall 82 to form a shoulder, so that the lower elastic wall 81 is easy to bend when squeezed, effectively reducing the risk of breakage at the connection and extending the service life.

[0030] Specifically, the pressing head 6 is provided with a positioning column 61 with one end inserted into the opening of the upper elastic wall 82. When the plastic elastic member 8 is assembled between the pressing head 6 and the bottle lock cap 1, the positioning column 61 is inserted into the opening of the upper elastic wall 82 to position the upper end of the plastic elastic member 8.

[0031] Furthermore, a concave cavity 11 is provided at the upper end of the bottle lock cap 1, and a mounting boss 12 is provided in the concave cavity 11, one end of which is inserted into the opening of the lower elastic wall 81, and the pump body 2 is mounted at the lower end of the mounting boss 12. When the plastic elastic member 8 is assembled between the pressing head 6 and the bottle lock cap 1, the mounting boss 12 is inserted into the opening of the lower elastic wall 81 to position the lower end of the plastic elastic member 8, so that the plastic elastic member 8 will not be displaced, skewed, or stuck before and after deformation, thereby ensuring the stable operation of the plastic elastic member.

[0032] In the utility model, a through hole 13 is provided in the middle of the mounting boss 12, and the pumping assembly 4 includes an upper pump rod 41 whose upper end passes through the through hole 13 and the plastic elastic member 8 and is connected to the pressing head 6 and can be driven by the pressing head 6 to move downward relative to the pump body 2, a lower pump rod 42 connected to the lower end of the upper pump rod 41, and a piston 43 sleeved on the lower pump rod 42 and with both ends respectively abutting against the upper pump rod 41 and the lower pump rod 42. A liquid outlet channel 411 connected to the spray nozzle 7 is provided in the upper pump rod 41, and a liquid inlet 421 sealed by the piston 43 is provided on the lower pump rod 42. After the lower pump rod 42 moves downward relative to the piston 43, the liquid inlet 421 is opened so that the emulsion in the liquid storage chamber 22 can enter the liquid outlet channel 411. When the pressing head 6 on the top is pressed, the pressing head 6 drives the upper pump rod 41 and the lower pump rod 42 to move downward relative to the piston 43, and then the liquid inlet 421 is opened. Then the pressing head 6 is continued to be pressed to drive the upper pump rod 41, the lower pump rod 42 and the piston 43 to move downward to generate air pressure, and the liquid in the liquid storage chamber 22 is sent to the spray nozzle 7 on the pressing head 6 through the liquid inlet 421 and the liquid outlet channel 411 to spray out the mist liquid; when the pressing head 6 is pressed to pump the liquid out, the plastic elastic part 8 deforms and recovers to press the pressing head 6 to drive the upper pump rod 41, the lower pump rod 42 and the piston 43 to move upward and reset, and a negative pressure is generated in the liquid storage chamber 22 to suck the liquid from the product bottle for the next user to use.

[0033] Specifically, the pump body 2 is provided with a gas replenishing hole 23 for replenishing the liquid from the outside of the bottle lock cap 1 into the liquid holding bottle. The piston 43 includes a support ring 431 that abuts against the lower end of the upper pump rod 41, a sealing ring 432 whose lower end can abut against the lower pump rod 42 to close the liquid inlet 421, an elastic arm 433 connected between the sealing ring 432 and the support ring 431, and an elastic sealing ring 434 that is provided on the sealing ring 432 and can seal the gas replenishing hole 23. The elastic sealing ring 434 has an interference fit with the inner wall of the pump body. When the pressing head drives the lower pump rod to move downward a certain distance through the upper pump rod, the upper pump rod 41 squeezes the elastic arm 433 through the support ring 431. The friction between the elastic sealing ring 434 and the inner wall of the pump body 2 is greater than the elastic force generated by the deformation of the elastic arm 433. In this way, the lower pump rod 42 moves downward relative to the sealing ring 432, thereby opening the liquid inlet 421. After the elastic arm 433 deforms to the limit, the pressure is continued, and the upper pump rod 41 drives the piston 43 to move downward, so that the air replenishing hole 23 is opened, and the external air locks the gap between the bottle cap 1 and flows to the air replenishing hole 23 to replenish the liquid in the bottle; when the plastic elastic member 8 presses the pressing head 6 to drive the upper pump rod 41, the lower pump rod 42 and the piston 43 to move upward and reset, the elastic sealing ring 434 is re-sealed in the air replenishing hole 23.

[0034] Specifically, the elastic sealing ring 434 is provided with an upper sealing step 4341 and a lower sealing step 4342 that are close to the inner wall of the pump body 2. The air supply hole 23 is located between the upper sealing step 4341 and the lower sealing step 4342 when closed, and is located above the upper sealing step 4341 when open.

[0035] Specifically, a plurality of elastic arms 433 are provided and are evenly distributed along the circumference of the support ring 431 .

[0036] The lower end of the mounting boss 12 is provided with a mounting groove which is recessed upward and into which one end of the pump body 2 is inserted. A card slot is provided in the mounting groove. The insertion end of the pump body 2 is provided with a card connection convex edge which can be carded into the card slot. The insertion end of the pump body 1 is also provided with an opening. When installing the all-plastic combined spray pump, the piston 43 is first sleeved on the lower pump rod 42, and the upper end of the lower pump rod 42 is plugged into the liquid outlet channel 411, so that the lower pump rod 42, the piston 43 and the upper pump rod 41 are assembled together, and then the plastic ball, the lower pump rod 42, the piston and the upper pump rod 41 are installed in the pump body 2, and then the cover 9 is covered. Finally, the insertion end of the pump body 2 is carded in the mounting groove, and the upper end of the upper pump rod 41 passes through the lock bottle cover 1 and the plastic elastic member 8 and is plugged into the pressing head 6, which is easy to install.

[0037] In order to ensure good overall sealing, a sealing ring 10 is provided on the inner wall of the lower end of the locking bottle cap 2. When the locking bottle cap 1 is threadedly connected to the liquid container bottle, the locking bottle cap 1 presses the sealing ring 10 against the bottle mouth of the liquid container bottle to seal.

[0038] The all-plastic combined spray pump further comprises an outer cover 20 which is snap-connected to the upper portion of the bottle lock cover 1 . The outer cover 20 may be a dome outer cover, a flat top outer cover or an outer cover in other shapes.

Claims

1. An all-plastic combined spray pump, characterized in that: The invention comprises a bottle lock cover (1) which can be fixed on a liquid container bottle, a pump body (2) being installed on the bottle lock cover (1), a suction pipe (3) being connected to the lower end of the pump body (2) through a connecting port (21), a liquid storage chamber (22) being connected to the suction pipe (3) and capable of allowing liquid to flow in, and a pumping assembly (4) capable of sliding up and down relative to the pump body (2), a plastic one-way valve (5) being provided in the liquid storage chamber (22) capable of controlling the opening of the connecting port (21) so that liquid can flow from the bottle body into the liquid storage chamber (22), and a valve (6) being provided at the upper end of the pumping assembly (4) capable of driving the pumping assembly (4) downward to allow the liquid storage chamber (22) to flow out. A pressing head (6) is provided to generate air pressure inside the liquid storage chamber (22) to squeeze the liquid out of the liquid storage chamber (22); the pressing head (6) is provided with a spray nozzle (7) for spraying the liquid; a plastic elastic member (8) is provided between the bottle lock (1) and the pressing head (6) to press the pressing head (6) to drive the pumping assembly (4) to move upward and reset, so that negative pressure is generated in the liquid storage chamber (22) so that the plastic one-way valve (5) opens and the liquid is sucked into the liquid storage chamber (22); the upper end of the plastic elastic member (8) is pressed against the lower end of the pressing head (6) and the lower end is pressed against the bottle lock (1); and the plastic elastic member (8) is provided with an elastic wall that is squeezed and deformed when pressed.

2. The all-plastic combined spray pump according to claim 1, characterized in that: The elastic wall comprises an upper elastic wall (82) which is formed into a cylindrical shape with an upper end opening, and a lower elastic wall (81) which is connected to the upper elastic wall (82) and is formed into a cylindrical shape with a lower end opening.

3. The all-plastic combined spray pump according to claim 2, characterized in that: The upper elastic wall (82) is in the shape of a trumpet with a diameter gradually decreasing from top to bottom.

4. The all-plastic combined spray pump according to claim 2, characterized in that: The lower elastic wall (81) is connected to the lower end of the upper elastic wall (82) via a circular arc surface (811), and the circular arc surface (811) extends toward the outer side of the upper elastic wall (82) to form a shoulder.

5. The all-plastic combined spray pump according to claim 2, characterized in that: The pressing head (6) is provided with a positioning column (61) with one end inserted into the opening of the upper elastic wall (82).

6. The all-plastic combined spray pump according to claim 2, characterized in that: The upper end of the bottle lock cap (1) is provided with a concave cavity (11), the concave cavity (11) is provided with a mounting boss (12) with one end inserted into the opening of the lower elastic wall (81), and the pump body (2) is mounted on the lower end of the mounting boss (12).

7. The all-plastic combined spray pump according to claim 6, characterized in that: A through hole (13) is provided in the middle of the mounting boss (12). The pumping assembly (4) comprises an upper pump rod (41) whose upper end passes through the through hole (13) and the plastic elastic member (8) and is connected to the pressing head (6) and can be driven by the pressing head (6) to move downward relative to the pump body (2), a lower pump rod (42) connected to the lower end of the upper pump rod (41), and a piston (43) sleeved on the lower pump rod (42) and with its two ends respectively abutting against the upper pump rod (41) and the lower pump rod (42). The upper pump rod (41) is provided with a liquid outlet channel (411) connected to the spray nozzle (7), and the lower pump rod (42) is provided with a liquid inlet (421) sealed by the piston (43). After the lower pump rod (42) moves downward relative to the piston (43), the liquid inlet (421) is opened so that the emulsion in the liquid storage chamber (22) can enter the liquid outlet channel (411).

8. The all-plastic combined spray pump according to claim 7, characterized in that: The pump body (2) is provided with a gas replenishing hole (23) capable of replenishing liquid from outside the bottle lock cap (1) into the liquid containing bottle, and the piston (43) includes a support ring (431) abutting against the lower end of the upper pump rod (41), a sealing ring (432) whose lower end can abut against the lower pump rod (42) to close the liquid inlet (421), an elastic arm (433) connected between the sealing ring (432) and the support ring (431), and an elastic sealing ring (434) provided on the sealing ring (432) and capable of sealing the gas replenishing hole (23).

9. The all-plastic combined spray pump according to claim 8, characterized in that: The elastic sealing ring (434) is provided with an upper sealing step (4341) and a lower sealing step (4342) which are close to the inner wall of the pump body (2); the air supply hole (23) is located between the upper sealing step (4341) and the lower sealing step (4342) when closed; and the air supply hole (23) is located above the upper sealing step (4341) when open.

10. The all-plastic combined spray pump according to claim 1, characterized in that: The plastic one-way valve (5) is a plastic ball.

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