CN219654827U - Spray pump and atomizing spraying device - Google Patents

Abstract

The utility model relates to a spray pump and an atomization spraying device, comprising: an actuating mechanism for forming a linear driving force; the pump body comprises a piston rod and a pump body, wherein the pump body at least comprises a first pump port, a second pump port and a third pump port, the first pump port is used for being connected with the nozzle assembly, the second pump port is used for being communicated with the containing bottle, one end of the piston rod is connected with the actuating mechanism, and the other end of the piston rod is connected with the cavity of the pump body in a sliding mode through the third pump port. The spray pump can accurately control the spray dosage, can avoid the phenomenon that no liquid is sprayed out in the initial stroke of the piston rod, and can ensure the accurate delivery of the medicine because the nozzle component is fixed in the process of triggering the spraying.

Description

Spray pump and atomizing spraying device

Technical Field

The utility model relates to the technical field of atomizing and spraying devices, in particular to a spray pump and an atomizing and spraying device.

Background

The atomizing spraying device is a structure capable of atomizing and spraying liquid, and when the atomizing spraying device is used for atomizing a medicine, the medicine is sprayed into atomized particles and sprayed on the affected parts such as the oral cavity, the nasal cavity, eyes and the skin surface, and the like, so that the atomizing spraying device has great effects on the absorption and the curative effect of the medicine. When the medicine reaches the affected part in a spray form, strict requirements are required on the dosage of the medicine reaching the affected part, the expected curative effect cannot be achieved due to insufficient dosage, and large side effects can be brought about due to excessive dosage, so that accurate control of the dosage and accurate delivery of the medicine to the affected part are critical.

The structure of the existing atomization spraying device is similar to that of a perfume bottle, liquid is extruded out of the accommodating cavity through pressing, and the liquid is sprayed out through the spraying channel and the atomization spray head to form mist. The liquid outlet nozzle is arranged on the button, and can move along with the button to influence the accurate delivery of the medicine. In addition, no liquid is ejected during the initial stroke of the press, and the ejected dose is inaccurate.

Disclosure of Invention

Based on the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a spray pump, which can precisely control the spray dose, avoid the phenomenon of no liquid ejection in the initial stroke of the piston rod, and ensure the precise delivery of the drug.

Therefore, the utility model provides the following technical scheme.

The present utility model provides a spray pump comprising:

an actuating mechanism for forming a linear driving force;

the pump body comprises a piston rod and a pump body, wherein the pump body at least comprises a first pump port, a second pump port and a third pump port, the first pump port is used for being connected with the nozzle assembly, the second pump port is used for being communicated with the containing bottle, one end of the piston rod is connected with the actuating mechanism, and the other end of the piston rod is connected with the cavity of the pump body in a sliding mode through the third pump port.

Preferably, a first one-way valve is arranged at the first pump port, and a second one-way valve is arranged at the second pump port.

Preferably, the pump body assembly comprises a liquid inlet tube for insertion into the containment bottle.

Preferably, the second one-way valve is arranged in the orifice of the liquid inlet pipe.

Preferably, the peripheral side wall of the second one-way valve is in clearance fit with the pipe wall of the pipe orifice, the second one-way valve is provided with a first inclined plane, and the pipe orifice is provided with a second inclined plane;

wherein, when the piston rod moves, the first inclined surface and the second inclined surface can abut to close the pipe orifice or separate from the pipe orifice so as to open the pipe orifice.

Preferably, the first one-way valve is a filter cartridge having an aperture configured to allow liquid to pass through the cartridge under hydraulic force and to block air from passing through.

Preferably, the peripheral side wall of the first one-way valve is in clearance fit with the first pump port, the first one-way valve is provided with a third inclined plane, and the first pump port is provided with a fourth inclined plane;

wherein when the piston rod moves, the third inclined surface and the fourth inclined surface can abut against to close the first pump port or separate from each other to open the first pump port.

Preferably, the first check valve comprises a column body and a third bulge which are connected, the first pump port comprises an abutting part, and the column body is in clearance fit with the first pump port;

wherein, when the piston rod moves, the third protruding portion and the abutting portion can abut against to close the first pump port or both are disengaged to open the first pump port.

Preferably, the pump body assembly comprises a first seal for sealing an assembly gap of the piston rod and the third pump port.

Preferably, a piston head is arranged at one end of the piston rod, and the piston head is used for sealing the abutting position of the end of the piston rod and the third pump port.

Preferably, the pump body assembly comprises a second seal for sealing the fitting gap of the liquid inlet pipe and the second pump port.

Preferably, the actuation mechanism comprises:

the connecting piece is used for connecting the piston rod;

a first spring connected with the connecting piece;

an actuating member, a first end of the first spring being in abutment with the actuating member;

a limiter comprising a first limiting bit and a second limiting bit; when the actuating mechanism is in an initial state, the connecting piece is locked to the first limiting position;

the actuating piece can move under the action of external force to compress the first spring, the connecting piece can be caused to be separated from the first limiting position, and the connecting piece separated from the first limiting position can move to the second limiting position in a direction away from the actuating piece under the action of the first spring.

Preferably, the device further comprises a second spring, one end of the second spring is used for abutting against the actuating piece, and the other end of the second spring is in an abutting state;

wherein when the connector reaches the second limit position, the second spring is compressed by the actuator and bounces back, so that the actuator is reset together with the connector and the first spring.

The utility model also provides an atomization spraying device which comprises the spraying pump.

The utility model has the following technical effects:

the utility model provides a spray pump, which comprises an actuating mechanism and a pump body, wherein the travel of a piston rod is controlled by the actuating mechanism so as to accurately control the spray dosage. Moreover, by controlling the liquid level of the liquid in the cavity of the pump body, the liquid level of the liquid after imbibition is above the first pump port, and the phenomenon that no liquid is sprayed out can be avoided in the initial stroke of the piston rod. In addition, because the nozzle assembly is arranged at the first pump port, the nozzle assembly is fixed in the movement process of the actuating mechanism and the piston rod, and the nozzle assembly is aligned to the destination, so that the accurate delivery of the medicine can be ensured.

Drawings

Fig. 1 is a structural sectional view of a spray pump in a first embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view showing a partial structure of a spray pump at the time of spraying in the first embodiment of the present utility model;

fig. 4 is a structural cross-sectional view of a spray pump in a second embodiment of the present utility model;

FIG. 5 is an enlarged view of FIG. 4 at B;

FIG. 6 is an enlarged view showing a partial structure of a spray pump at the time of spraying in a second embodiment of the present utility model;

FIG. 7 is a partial cross-sectional view of a spray pump according to a third embodiment of the present utility model;

FIG. 8 is an exploded view of the assembled structure of the actuator mechanism and piston rod of the present utility model;

FIG. 9 is an exploded view of the assembled structure of the actuator mechanism and piston rod of the present utility model

FIG. 10 is a schematic perspective view of the actuator mechanism of the present utility model in an initial state;

FIG. 11 is a schematic diagram showing the assembly structure of the actuator, the first elastic member, the connecting member and the piston rod during the assembly process;

FIG. 12 is a schematic diagram showing the assembly structure of the actuator, the first elastic member, the connecting member and the piston rod during the assembly process according to the present utility model;

FIG. 13 is a schematic view of the assembled structure of the actuator, the first resilient member, the connecting member and the piston rod of the present utility model;

FIG. 14 is a partial cross-sectional view of the assembled structure of the actuating mechanism of the present utility model and the piston rod in an initial state;

FIG. 15 is a partial cross-sectional view of the assembled structure of the actuating mechanism of the present utility model and the piston rod when in the actuated state;

FIG. 16 is a partial cross-sectional view of the assembled structure of the actuator mechanism and piston rod of the present utility model in a single-pass actuated state;

fig. 17 is an exploded view of a partial structure of the atomizing spray device of the present utility model.

Fig. 18 is a partial structural sectional view of the atomizing spray device of the present utility model.

Description of the reference numerals

100. An atomizing and spraying device;

1. an actuating mechanism;

11. a connecting piece; 111. a first boss; 112. a column; 1121. a second mounting hole; 1122. a second protruding portion; 113. a pin shaft;

12. a first elastic member;

13. an actuator; 131. a first hollow cavity; 132. a first notch; 1321. a first guide surface; 1322. a fourth guide surface; 133. a second notch; 134. a first through hole; 135. a second through hole; 136. a convex rib;

14. a limiting piece; 141. a first defined bit; 142. a second limiting bit; 143. a second hollow cavity; 144. the second limit groove; 1441. a stop portion; 145. a third limit groove; 1451. a second guide surface; 146. a third guide surface; 147. a chute;

15. a second elastic member;

2. a pump body assembly;

21. a piston rod;

22. a pump body; 221. a first pump port; 2211. a fourth inclined surface; 2212. an abutting portion; 222. a second pump port; 2221. a second step portion; 223. a third pump port; 2231. a first step portion; 224. a cavity;

23. a first one-way valve; 231. a third inclined surface; 232. a column body; 233. a third boss;

24. a second one-way valve; 241. A first inclined surface;

25. a liquid inlet pipe; 251. A pipe orifice; 2511. A second inclined surface;

261. a first seal; 262. a second seal;

27. a piston head;

281. a first mounting member; 282. a second mounting member;

3. a nozzle assembly;

31. a nozzle; 311. a spout; 312. an inner concave portion; 313. a nozzle core; 32. a third mount; 33. a third seal; 34. a fourth seal;

4. a button cover;

72. containing the bottle.

Detailed Description

In order to make the technical scheme and the beneficial effects of the utility model more obvious and understandable, the following detailed description is given by way of example. Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

In the description of the present utility model, unless explicitly defined otherwise, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience of simplifying the description of the present utility model, and do not indicate that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, i.e., are not to be construed as limiting the present utility model.

In the present utility model, the terms "first", "second" are used for descriptive purposes only and are not to be construed as relative importance of the features indicated or the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly include at least one such feature. In the description of the present utility model, "plurality" means at least two; "plurality" means at least one; unless otherwise specifically defined.

In the present utility model, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, unless otherwise specifically limited. For example, "connected" may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless explicitly defined otherwise, a first feature "on", "above", "over" and "above", "below" or "under" a second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact via an intermediary. Moreover, a first feature "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the level of the first feature is higher than the level of the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the level of the first feature is less than the level of the second feature.

The references to "upper" and "lower" in this disclosure are in reference to the designations in fig. 1, 8 and 18.

The atomizing spray device of the present utility model is described in detail below with reference to fig. 1 to 18.

First embodiment

An atomizing spray device according to a first embodiment of the present utility model will be described with reference to fig. 1 to 3 and fig. 8 to 18.

In the present embodiment, as shown in fig. 1 to 3 and 18, the atomizing spray device 100 includes a spray pump including an actuator mechanism 1 and a pump body assembly 2, a nozzle assembly 3, and a housing bottle 72, and the actuator mechanism 1 is configured to form a linear driving force. The pump body assembly 2 comprises a piston rod 21 and a pump body 22, the pump body 22 comprises a first pump port 221, a second pump port 222 and a third pump port 223, the first pump port 221 is used for being connected with the nozzle assembly 3, the second pump port 222 is used for being communicated with the containing bottle 72, one end of the piston rod 21 is connected with the actuating mechanism 1, the other end of the piston rod is connected with a cavity 224 of the pump body 22 in a sliding mode through the third pump port 223, and when the actuating mechanism 1 operates, one end of the piston rod 21 can be driven to reciprocate in the cavity 224 to realize spraying.

With the above technical solution, the travel of the piston rod 21 is controlled by the actuating mechanism 1 in order to precisely control the dose of spray. Moreover, by controlling the liquid level of the liquid in the cavity of the pump body 22 so that the liquid level after the liquid suction is above the first pump port 221, it is possible to avoid the phenomenon that no liquid is ejected in the initial stroke of the piston rod 21. In addition, since the nozzle assembly 3 is mounted on the first pump port 221, the nozzle assembly 3 is fixed during the movement of the actuating mechanism 1 and the piston rod 21, and the nozzle assembly 3 is aligned to the destination, so that the accurate delivery of the medicine can be ensured.

In one embodiment, the first pump port 221 is located between the second pump port 222 and the third pump port 223. As shown in fig. 1 and 18, the second pump port 222 is located below the third pump port 223, and at this time, the accommodating bottle 72 is mounted below the pump body assembly 2.

In one embodiment, as shown in fig. 1 to 3, a first check valve 23 is provided at the first pump port 221, and a second check valve 24 is provided at the second pump port 222. As shown in fig. 2, when the piston rod 21 moves in a direction away from the accommodating bottle 72, vacuum negative pressure is formed in the cavity 224, the first check valve 23 closes the first pump port 221, the second check valve 24 opens the second pump port 222, and the liquid in the accommodating bottle 72 flows into the cavity 224 until the piston rod 21 completes the positive stroke movement, and the pump body assembly 2 completes one-time liquid suction. As shown in fig. 3, when the piston rod 21 moves in the direction toward the accommodating bottle 72, the liquid in the cavity 224 is squeezed, the first check valve 23 opens the first pump port 221, and the second check valve 24 closes the second pump port 222 until the negative stroke movement of the piston rod 21 is completed, and the pump body assembly 2 completes one injection.

Further, as shown in fig. 1 to 3, the pump body assembly 2 includes a liquid inlet pipe 25, and the liquid inlet pipe 25 is inserted into the accommodating bottle 72 so as to facilitate the liquid suction of the pump body assembly 2.

Further, as shown in fig. 2 and 3, the second check valve 24 is provided in the nozzle 251 of the liquid inlet pipe 25. The liquid inlet pipe 25 is simple in structure, the second one-way valve 24 is assembled in the liquid inlet pipe 25 to replace the scheme of assembling the second one-way valve 24 and the pump body 22, so that the structure of the pump body 22 is simplified, the second one-way valve 24 and the liquid inlet pipe 25 are assembled firstly during assembly, and then the liquid inlet pipe 25 and the pump body 22 are assembled, so that the assembly difficulty can be reduced. Of course, the second check valve 24 may also be fitted directly into the cavity 224 of the pump body 22.

Further, as shown in fig. 2 and 3, the peripheral side wall of the second check valve 24 is in clearance fit with the pipe wall of the pipe orifice 251, the second check valve 24 is provided with a first inclined surface 241, and the pipe orifice 251 is provided with a second inclined surface 2511. As shown in fig. 3, when piston rod 21 moves in the direction toward accommodating bottle 72, the liquid in chamber 224 is squeezed, and first inclined surface 241 abuts against second inclined surface 2511 under the squeezing of the liquid, and second check valve 24 closes spout 251. As shown in fig. 2, when piston rod 21 moves in a direction away from accommodating bottle 72, a vacuum negative pressure is formed in chamber 224, and first inclined surface 241 is disengaged from second inclined surface 2511, so that liquid flows into chamber 224 from the gap between the outer wall of second check valve 24 and the wall of nozzle 251, and liquid suction is achieved. In this embodiment, the second check valve 24 has a simple structure and is easy to open and close.

In one embodiment, as shown in fig. 1-3, the first one-way valve 23 is a filter cartridge, the first one-way valve 23 and the inner wall of the first pump port 221 are interference fit, and the aperture of the filter cartridge is configured to allow liquid to pass through the filter cartridge under hydraulic force and to block air from passing through. During the reciprocating movement of the piston rod 21, the first one-way valve 23 is stationary and obstructs the passage of air, to a certain extent avoiding the contamination of the cavity 224 and the liquid inside the containing bottle 72. When the pump body assembly 2 absorbs liquid, the first check valve 23 closes the first pump port 221 due to the vacuum negative pressure formed in the cavity 224. When the pump body assembly 2 sprays, the liquid presses the cavity 224, the first check valve 23 receives hydraulic force of the liquid, and the liquid is sprayed out after passing through the filter holes of the first check valve 23.

Further, the pore size of the filter element is 5 μm to 50. Mu.m, preferably 5. Mu.m.

In one embodiment, as shown in fig. 1, the pump body assembly 2 includes a first seal 261, and the first seal 261 is used to seal an assembly gap between the piston rod 21 and the third pump port 223 to prevent external air from entering the cavity 224.

Further, as shown in fig. 1, the pump body assembly 2 includes a first mounting member 281, the first mounting member 281 is screwed to the outer periphery of the third pump port 223, the third pump port 223 is provided with a first step portion 2231, a first clamping groove is formed between the first step portion 2231 and the first mounting member 281, the first sealing member 261 is clamped in the first clamping groove, and the first sealing member 261 is simple to assemble.

In one embodiment, as shown in fig. 1, the pump body assembly 2 includes a second seal 262, and the second seal 262 is used to seal the assembly gap between the inlet pipe 25 and the second pump port 222, so as to prevent the outside air from entering the cavity 224.

Further, as shown in fig. 1, the pump body assembly 2 includes a second mounting member 282, the second mounting member 282 is screwed to the second pump port 222, the second pump port 222 is provided with a second step portion 2221, a second clamping groove is formed between the second step portion 2221 and the second mounting member 282, the second sealing member 262 is clamped in the second clamping groove, and the second sealing member 262 is simple to assemble.

In one embodiment, as shown in fig. 1, the nozzle assembly 3 includes a nozzle 31, a third mounting member 32 and a third sealing member 33, the nozzle 31 is used for spraying the liquid in a mist form, the third mounting member 32 is screwed to the outer periphery of the first pump port 221, the third mounting member 32 is used for mounting the nozzle 31 in the first pump port 221, and the third sealing member 33 is used for sealing the assembly gap between the nozzle 31 and the first pump port 221.

Further, as shown in fig. 1, the nozzle 31 is provided with a nozzle 311, one side of the nozzle 31 facing the cavity 224 is provided with an inner concave portion 312, a nozzle core 313 is arranged in the inner concave portion 312, and liquid in the cavity 224 sequentially passes through the nozzle core 313 and the nozzle 311 to spray atomized medicine.

Further, as shown in fig. 1, a fourth seal 34 is provided at the spout 311 to prevent outside air from entering the nozzle assembly 3, thereby causing bacteria to grow in the nozzle assembly 3.

In an embodiment, as shown in fig. 8 and 9, the actuating mechanism 1 includes a connecting member 11, a first elastic member 12, an actuating member 13 and a limiting member 14, the connecting member 11 is used for connecting a piston rod 21 of a pump body assembly of the atomizing spray device 100, the first elastic member 12 is connected with the connecting member 11, a first end of the first elastic member 12 abuts against the actuating member 13, and the limiting member 14 includes a first limiting bit 141 and a second limiting bit 142.

As shown in fig. 10 and 14, when the connector 11 is locked to the first limiting position 141, the actuating mechanism 1 is in an initial state. When the atomized spray apparatus 100 sprays, the actuating member 13 can move under the external force, and the first end of the first elastic member 12 abuts against the actuating member 13, so that the moving actuating member 13 compresses the first elastic member 12, so that the first elastic member 12 is pushed against the connecting member 11, and the connecting member 11 is further pushed to be separated from the first limiting position 141, so as to trigger the spraying. Since the connecting member 11 is disengaged from the first limiting portion 141, the first elastic member 12 in the compressed state is sprung back in a direction away from the actuating member 13, and thus, as shown in fig. 15, the connecting member 11 can continue to move in a direction toward the second limiting portion 142 by the first elastic member 12, and at this time, the actuating mechanism 1 is in the actuated state (the piston rod 21 is caused to move). As shown in fig. 16, when the link 11 is stopped by moving to the second limiting position 142, the actuating mechanism 1 is in the single-pass actuated state. By the connection 11 being quantitatively displaced together with the piston rod 21, the liquid in the cavity of the pump body 22 is squeezed with the movement of the piston rod 21, thereby achieving quantitative injection.

The atomizing spray device 100 is provided with an actuating mechanism 1, the initial position of the connecting piece 11 being defined by a first limiting bit 141, the stop position of the connecting piece 11 being defined by a second limiting bit 142, and the nozzle assembly completing a spray when the connecting piece 11 is moved to the stop position. That is, the limiting member 14 is provided to limit the travel of the connecting member 11 in the spraying process, and the first elastic member 12 and the actuating member 13 cooperate to drive the connecting member 11 to move, so long as the user triggers spraying, the connecting member 11 can reach the second limiting position 142 under the action of the first elastic member 12, and further the travel of the piston rod 21 in the cavity of the pump body 22 can be accurately controlled, the spraying dosage is prevented from being influenced by the difference of the user applied force, the stability of the spraying dosage is ensured, the metering is accurate, and the spraying effect can be improved. Moreover, the first elastic member 12 provides instantaneous driving power for the connecting member 11, so that the piston member 21 can form instantaneous movement, and the formation of stable fog is facilitated. In addition, the actuating mechanism 1 has a simple overall structure and is easy and convenient to operate.

In one embodiment, as shown in fig. 8, the first elastic member 12 is a spring, and the structure is simple.

In one embodiment, the upper part of the pump body 22 is connected to the actuating mechanism 1, the lower part thereof is connected to the containing bottle, and the lower part of the stopper 14 is fixed to the pump body 22.

In one embodiment, as shown in fig. 17, the atomizing spray device 100 includes a button housing 4, and the actuating mechanism 1 is located in the button housing 4 to conceal the actuating mechanism 1 and improve the aesthetic appearance. The top wall of the actuating member 13 is opposed to the inner wall of the button housing 4, and when the atomizing spray device 100 is used, the actuating member 13 is moved by pressing the button housing 4.

In one embodiment, as shown in fig. 8, 9, and 14 to 16, the actuating mechanism 1 further includes a second elastic member 15, one end of which is used to abut against the actuating member 13, and the other end of which abuts against the limiting member 14 to be in an abutting state. As shown in fig. 14 to 16, when the atomizing spray device 100 performs spraying, the actuating member 13 moves under an external force, the moving actuating member 13 compresses the second elastic member 15, and when the connecting member 11 reaches the second limiting position 142, the atomizing spray device 100 performs spraying of an accurate dose. Then, the compressed second elastic member 15 rebounds to reset the actuating member 13 together with the connecting member 11 and the first elastic member 12, at this time, the connecting member 11 drives the piston rod 21 to move reversely, a vacuum negative pressure is formed in the cavity 224 of the pump body 22, and the pump body 22 sucks liquid from the containing bottle, so as to complete one-time liquid suction. The actuating mechanism 1 can drive the piston rod 21 to perform quantitative reciprocating motion through the reciprocating motion of the actuating member 13, and finally, a plurality of stable doses of injection is realized.

Of course, the reset structure of the actuating mechanism 1 is not limited thereto, and the reset may be achieved by manually resetting the actuating member 13 or other structures.

Further, as shown in fig. 8, the second elastic member 15 is a spring, and has a simple structure.

In an embodiment, as shown in fig. 11 and 13, the actuating member 13 is provided with a first hollow cavity 131, the connecting member 11 and the first elastic member 12 are located in the first hollow cavity 131, and the first end of the first elastic member 12 abuts against the cavity wall of the first hollow cavity 131. The connecting member 11 and the first elastic member 12 are accommodated in the actuating member 13, which is advantageous in reducing the overall size of the actuating mechanism 1, and preventing the connecting member 11 and the first elastic member 12 from rattling when moving in the axial direction of the piston rod 21 by the actuating member 13.

Of course, the structure of the actuating member 13 is not limited thereto, and the actuating member 13 may be configured in a plate-like structure or other structure as long as it is capable of compressing the first elastic member 12 and causing the connecting member 11 to be separated from the first limiting position 141 when it moves itself.

Further, as shown in fig. 11 and 14, the actuating member 13 is provided with a first notch 132, the connecting member 11 includes a first protruding portion 111, and the first protruding portion 111 passes through the first notch 132 and then cooperates with the limiting member 14; when the actuating mechanism 1 is in the initial state, the first protrusion 111 is locked to the first limiting position 141, facilitating the assembly of the connecting piece 11 and the limiting piece 14. It will be appreciated that when the connecting member 11 and the first elastic member 12 are assembled to the actuating member 13, the first elastic member 12 is in a compressed state so that the first protrusion 111 can firmly abut against the corner of the first notch 132.

Further, as shown in fig. 9 and 10, the limiting member 14 is provided with a second hollow cavity 143, and the actuating member 13 is partially located in the second hollow cavity 143, so that the overall size of the actuating mechanism 1 is reduced, and the actuating member 13 is slidably matched with the second hollow cavity 143 so as to move in the second hollow cavity 143. In a specific embodiment, as shown in fig. 9, two corners of the outer wall of the actuating member 13 are respectively provided with a rib 136, the limiting member 14 is provided with two sliding grooves 147, and the ribs 136 are matched with the sliding grooves 147 one by one, so that the actuating member 13 is slidably connected to the limiting member 14.

Of course, the structure of the stopper 14 is not limited thereto, and may be configured as a plate-like structure or other structure as long as it can cooperate with the connector 11 to limit the travel distance of the connector 11.

Further, as shown in fig. 11, the first notch 132 is provided with a first guiding surface 1321, when the atomized spray apparatus 100 sprays, the actuating member 13 moves under the external force, at this time, as shown in fig. 14, the first limiting position 141 limits the connecting member 11, and the connecting member 11 does not move until the actuating member 13 moves until the first guiding surface 1321 abuts against the first protruding portion 111, as shown in fig. 15, the first guiding surface 1321 changes the direction of the pushing force applied by the actuating member 13 to the first protruding portion 111, that is, the first protruding portion 111 moves along the first guiding surface 1321, and finally is separated from the first limiting position 141.

In one embodiment, as shown in fig. 8 and 9, the limiting member 14 includes a first limiting groove and a second limiting groove 144 that are communicated, and the first limiting groove forms a first limiting bit 141; the second limiting groove 144 extends along the moving direction of the connecting piece 11, and one end, away from the first limiting groove, of the second limiting groove 144 forms a second limiting position 142. The first protruding portion 111 of the connecting piece 11 is inserted into the first limiting position 141 (the first limiting groove) to achieve limiting, and limiting operation is simple. When the first protrusion 111 moves from the first limiting position 141 to the second limiting position 142 along the second limiting position 144 after being separated from the first limiting position 141, the first protrusion is stopped by the second limiting position 142, the limiting operation is simple, and the second limiting position 144 can also limit the moving direction of the connecting piece 11, so as to avoid the shaking of the connecting piece 11 in the process of triggering injection, and the connection stability of the connecting piece 11 and the piston rod 21 is affected.

Of course, the structures of the first and second limiting bits 141 and 142 are not limited thereto, and a stopper protrusion or other structures may be configured.

Further, as shown in fig. 8 and 9, the first limiting bit 141 is communicated with one side of the second limiting groove 144, and the extending direction of the first limiting bit 141 is perpendicular to the extending direction of the second limiting groove 144.

Further, as shown in fig. 9, the stopper 14 includes a third stopper groove 145, and the third stopper groove 145 is provided with a second guide surface 1451, and the second guide surface 1451 is used for guiding the installation of the connector 11. When the connecting member 11 and the limiting member 14 are assembled, the first protrusion 111 of the connecting member 11 is first inserted into the third limiting groove 145, the first protrusion 111 moves along the second guiding surface 1451 under an external force, the second guiding surface 1451 applies a force to the first protrusion 111 in a direction away from the first limiting bit 141, the connecting member 11 rotates around its central axis by a certain angle under the cooperation of the first elastic member 12, and the rotation of the connecting member 11 applies a pretwist force to the first elastic member 12. When the first protruding portion 111 moves to the notch of the first limiting position 141 along with the connecting piece 11, the first elastic piece 12 enables the connecting piece 11 to reversely rotate under the pretwist force, and then the first protruding portion 111 is led into the first limiting position 141 to lock the initial position of the connecting piece 11, and the installation is simple.

Further, as shown in fig. 9, the stopper 14 includes a third guiding surface 146, where the third guiding surface 146 is connected to the second guiding surface 1451, and the third guiding surface 146 is located on a surface of the stopper 14 facing the connector 11, and the third guiding surface 146 is configured to guide the connector 11 to partially extend into the third limiting groove 145 when the connector 11 and the stopper 14 are assembled, so as to facilitate assembly.

In one embodiment, the connector 11 and the first elastic member 12 are assembled by first fitting them into the first hollow cavity 131 of the actuator 13, and then fitting the actuator 13 into the second hollow cavity 143 of the stopper 14. During the insertion of the actuator 13 into the second hollow cavity 143, the first protrusion 111 contacts the third guide surface 146, moves along the third guide surface 146 to the second guide surface 1451, and enters the first limiting position 141 under the guidance of the second guide surface 1451, so that the actuator 1 is assembled.

Further, as shown in fig. 9, the third limiting groove 145 is located at a communication position between the first limiting groove 141 and the second limiting groove 144, as shown in fig. 10, the second limiting groove 144 is provided with a stop portion 1441, and the stop portion 1441 is used for preventing the connecting piece 11 from entering the third limiting groove 145 when the connecting piece 11 is reset.

In one embodiment, as shown in fig. 9 and 10, the third limiting groove 145 is located above the second limiting groove 144, the first limiting groove 141 is located at one side of the second limiting groove 144, and the actuating member 13 moves downward to be assembled to the limiting member 14. When the atomizing spray apparatus 100 performs spraying, as shown in fig. 14, the actuating member 13 moves downward, and the first guide surface 1321 of the actuating member 13 contacts the first protrusion 111 limited to the first limiting position 141, so that the first protrusion 111 is separated from the first limiting position 141 and enters the second limiting groove 144, as shown in fig. 15 and 16, the compressed first elastic member 12 bounces downward, so that the connecting member 11 moves downward until the first protrusion 111 is limited to the second limiting position 142, and a quantitative spraying is completed. Then, under the rebound of the second elastic member 15, the actuating member 13, together with the connecting member 11 and the first elastic member 12 located therein, is reset upward, and as shown in fig. 10, when the connecting member 11 moves to the stop portion 1441, it is blocked to suspend upward movement, at this time, under the effect of the pre-torsion force of the first elastic member 12, the first protruding portion 111 rotates to enter the first limiting position 141, and returns to the initial position, and the pump body assembly completes a quantitative liquid suction.

In an embodiment, as shown in fig. 11 to 13, the actuating member 13 includes a second notch 133, and a first through hole 134 and a second through hole 135 that are connected to each other, where the first through hole 134 and the second through hole 135 are both connected to the first hollow cavity 131 of the actuating member 13, the second notch 133 is located at one side of the first notch 132 and is connected to the first notch 132, and the first notch 132 is provided with a fourth guiding surface 1322. When the connector 11 and the actuator 13 are assembled, as shown in fig. 11, the post 112 of the connector 11 is aligned with the first through hole 134, the first protrusion 111 of the connector 11 is aligned with the second through hole 135, and at this time, the first elastic member 12 has a pre-torsion force to insert the connector 11 into the first hollow cavity 131. When the first protrusion 111 moves to the second notch 133, the first elastic member 12 with the pre-torsion force makes the connecting member 11 rotate at a certain angle due to the interference of the first protrusion 111 with the actuating member 13, as shown in fig. 12, so that the first protrusion 111 passes through the second notch 133. Then, under the pre-torsion and rebound force of the first elastic member 12, the first protrusion 111 of the connecting member 11 moves to a corner of the first notch 132 along the fourth guiding surface 1322, at this time, the first elastic member 12 still has the pre-torsion force, as shown in fig. 13, so that the first protrusion 111 can be stably abutted against the corner.

Further, as shown in fig. 13 and 14, the fourth guiding surface 1322 is disposed obliquely toward the first limiting position 141, and during the resetting of the actuator 13, the fourth guiding surface 1322 can also apply a force toward the first limiting position 141 to the first protruding portion 111, so as to ensure that the first protruding portion 111 can be reset to the initial position locked to the first limiting position 141.

In an embodiment, as shown in fig. 8 and 9, the connecting piece 11 includes a cylinder 112 and a pin 113, the cylinder 112 is connected with the first elastic piece 12, the cylinder 112 is provided with a second mounting hole 1121, the pin 113 is inserted into the cylinder 112 through the second mounting hole 1121, a portion of the pin 113 located outside the cylinder 112 forms the first protruding portion 111, and the connecting piece 11 has a simple structure and is convenient to process.

Further, as shown in fig. 11, one end of the column 112 is provided with a second protruding portion 1122, and the first elastic member 12 is sleeved on the outer periphery of the second protruding portion 1122, so that the assembly of the two is simple and quick.

Further, the other end of the column 112 is provided with a first mounting hole for mounting the piston rod 21, and the two are assembled simply and quickly.

Second embodiment

An atomizing spray device according to a second embodiment of the present utility model will be described with reference to fig. 4 to 6.

The atomizing and spraying device of this embodiment is substantially the same as the atomizing and spraying device of the first embodiment, and differences between the two embodiments will be mainly described below.

In the present embodiment, as shown in fig. 4 to 6, the peripheral side wall of the first check valve 23 is clearance-fitted to the first pump port 221, the first check valve 23 is provided with the third inclined surface 231, and the first pump port 221 is provided with the fourth inclined surface 2211. As shown in fig. 5, when the piston rod 21 moves in a direction away from the accommodating bottle, vacuum negative pressure is formed in the cavity 224, the third inclined surface 231 and the fourth inclined surface 2211 are propped against each other, the first one-way valve 23 closes the first pump port 221, and at this time, the second one-way valve 24 opens the nozzle 251 to realize liquid suction. As shown in fig. 6, when the piston rod 21 moves in the direction toward the accommodating bottle 72, the liquid in the cavity 224 is pressed, the third inclined surface 231 is separated from the fourth inclined surface 2211 by the pressing of the liquid, and the first check valve 23 opens the first pump port 221 to realize the ejection. In the present embodiment, the first check valve 23 has a simple structure and is simple in opening and closing operations.

Third embodiment

An atomizing spray device according to a third embodiment of the present utility model will be described with reference to fig. 7.

The atomizing and spraying device of this embodiment is substantially the same as the atomizing and spraying device of the first embodiment, and differences between the two embodiments will be mainly described below.

In the present embodiment, as shown in fig. 7, the first check valve 23 includes a column shaft 232 and a third boss 233 connected to each other, the first pump port 221 includes an abutment 2212, and the column shaft 232 is clearance-fitted with the first pump port 221. As shown in fig. 7, when the piston rod 21 moves in a direction away from the accommodating bottle, vacuum negative pressure is formed in the cavity 224, the third protrusion 233 abuts against the abutting portion 2212, the first check valve 23 closes the first pump port 221, and at this time, the second check valve 24 opens the nozzle 251 to realize liquid suction. When the piston rod 21 moves in the direction toward the container bottle (not shown in the drawing), the liquid in the chamber 224 is squeezed, the third convex portion 233 is separated from the abutting portion 2212 by the squeezing of the liquid, and the first check valve 23 opens the first pump port 221, so that ejection is realized. In the present embodiment, the first check valve 23 has a simple structure and is simple in opening and closing operations.

In the present embodiment, as shown in fig. 7, a piston head 27 is provided at one end of the piston rod 21, and the piston head 27 is configured to seal the contact between the end of the piston rod 21 and the third pump port 223, thereby simplifying the assembly structure of the piston rod 21 while achieving sealing.

In the present embodiment, as shown in fig. 7, the second pump port 222 is located above the third pump port 223, and at this time, the housing bottle 72 is mounted above the pump body assembly 2.

In the present embodiment, as shown in fig. 7, the second check valve 24 is provided in the second pump port 222, and the second inclined surface 2511 is provided on the nozzle end surface of the liquid inlet pipe 25.

It should be understood that the above examples are illustrative and are not intended to encompass all possible implementations encompassed by the claims. Various modifications and changes may be made in the above embodiments without departing from the scope of the disclosure. Likewise, the individual features of the above embodiments can also be combined arbitrarily to form further embodiments of the utility model which may not be explicitly described. Therefore, the above examples merely represent several embodiments of the present utility model and do not limit the scope of protection of the patent of the present utility model.

Claims (14)

1. A spray pump, comprising:

an actuating mechanism (1) for forming a linear driving force;

pump body subassembly (2), it includes piston rod (21) and pump body (22), pump body (22) include at least first pump mouth (221), second pump mouth (222) and third pump mouth (223), first pump mouth (221) are used for connecting nozzle assembly (3), second pump mouth (222) are used for with hold bottle (72) intercommunication, piston rod (21) one end with actuating mechanism (1) is connected, the other end passes through third pump mouth (223) sliding connection in cavity (224) of pump body (22).

2. A spray pump according to claim 1, characterized in that a first one-way valve (23) is provided at the first pump port (221) and a second one-way valve (24) is provided at the second pump port (222).

3. A spray pump according to claim 2, wherein the pump body assembly (2) comprises a liquid inlet tube (25), the liquid inlet tube (25) being intended to be inserted into the containing bottle (72).

4. A spray pump according to claim 3, characterized in that the second one-way valve (24) is arranged in the nozzle (251) of the feed pipe (25).

5. The spray pump according to claim 4, characterized in that the peripheral side wall of the second one-way valve (24) is in clearance fit with the pipe wall of the pipe orifice (251), the second one-way valve (24) being provided with a first inclined surface (241), the pipe orifice (251) being provided with a second inclined surface (2511);

wherein, when the piston rod (21) moves, the first inclined surface (241) and the second inclined surface (2511) can abut to close the nozzle (251) or both can be separated to open the nozzle (251).

6. A spray pump according to any one of claims 2-5, characterized in that the first one-way valve (23) is a filter cartridge, the pore size of which is configured to allow liquid to pass through the cartridge under hydraulic force and to hinder the passage of air.

7. A spray pump according to any one of claims 2-5, characterized in that the peripheral side wall of the first non-return valve (23) is in clearance fit with the first pump opening (221), the first non-return valve (23) being provided with a third inclined surface (231), the first pump opening (221) being provided with a fourth inclined surface (2211);

wherein, when the piston rod (21) moves, the third inclined surface (231) and the fourth inclined surface (2211) can abut against each other to close the first pump opening (221) or both are separated to open the first pump opening (221).

8. A spray pump according to any one of claims 2-5, wherein the first one-way valve (23) comprises a connected shaft (232) and third boss (233), the first pump port (221) comprising an abutment (2212), the shaft (232) being in clearance fit with the first pump port (221);

wherein, when the piston rod (21) moves, the third boss (233) and the abutment (2212) can abut against each other to close the first pump port (221) or both are disengaged to open the first pump port (221).

9. A spray pump according to any of claims 1-5, characterized in that the pump body assembly (2) comprises a first seal (261), the first seal (261) being adapted to seal an assembly gap of the piston rod (21) and the third pump port (223).

10. A spray pump according to any one of claims 1-5, characterized in that one end of the piston rod (21) is provided with a piston head (27), the piston head (27) being arranged to seal the abutment of the end of the piston rod (21) and the third pump opening (223).

11. A spray pump according to any of claims 3-5, characterized in that the pump body assembly (2) comprises a second seal (262), the second seal (262) being intended to seal an assembly gap of the inlet pipe (25) and the second pump port (222).

12. A spray pump according to any one of claims 1-5, characterized in that the actuation mechanism (1) comprises:

-a connection member (11) for connecting the piston rod (21);

a first spring (12) connected to the connecting member (11);

an actuator (13), a first end of the first spring (12) being in abutment with the actuator (13);

a limiter (14) comprising a first limiting bit (141) and a second limiting bit (142); -said connection (11) is locked to said first limit bit (141) when said actuation mechanism (1) is in an initial state;

wherein the actuating member (13) is movable under an external force to compress the first spring (12) and to urge the connecting member (11) away from the first limiting position (141), the connecting member (11) away from the first limiting position (141) being movable under the action of the first spring (12) in a direction away from the actuating member (13) to the second limiting position (142).

13. A spray pump according to claim 12, further comprising a second spring (15) having one end for abutment against the actuator (13) and the other end in an abutment condition;

wherein, when the connecting piece (11) reaches the second limiting position (142), the second spring (15) is compressed by the actuating piece (13) and bounces, so that the actuating piece (13) is reset together with the connecting piece (11) and the first spring (12).

14. An atomizing spray device comprising a spray pump as claimed in any one of claims 1 to 13.