Atomizer pump, and bottle

Abstract

An atomizer pump and a bottle. The atomizer pump comprises a pump body (1), a push cap (7), a pump rod (8), a piston (14) and a lock cover (11). The pump body (1) is provided with a pump chamber (101), and the cover (7) is provided with an atomization part (5). The piston (14) is sleeved outside the pump rod (8), and comprises a piston ring (1402) and a sealing portion (1403). The piston ring (1402) is dynamically sealed to the inner wall of the pump chamber (101), and a first elastic element is provided between the piston (14) and the pump rod (8). A stop structure is provided between the piston (14) and the pump rod (8) for limiting the stroke of relative movement between the piston and the pump rod. The lock cover (11) is fixed in the pump chamber (101), the pump rod (8) is slidably arranged in the lock cover (11), and a guide structure is provided between the pump rod (8) and the lock cover (11). A second elastic element is provided between the lock cover (11) and the pump rod (8). The lower end of the pump rod (8), and the piston ring and the sealing portion of the piston (14) penetrate the lock cover (11) and are located in the pump chamber (101). The atomizer pump has a large spray volume and good reliability.

Description

Atomizing pump and bottle Technical Field

[0001] The invention relates to a pump, in particular to an atomizing pump and a bottle. Background Art

[0002] Atomizing pumps can spray liquids into atomized form, covering a larger and more even surface. For example, a pump used in a perfume bottle can spray the perfume evenly with a single press.

[0003] Increasing spray volume is one of the main research directions for improving the spraying effect of atomizer pumps. A common method for increasing spray volume is to increase the pump's pressing stroke. To increase the pressing stroke, most atomizer pump products on the market usually lengthen the spring inside the pump or even make the spring external to the pump chamber. However, such a design has at least the following disadvantages:

[0004] (1) Due to the long spring, the related accessories may shake when pressed, affecting the seal and making the head tilted. The spring may even scratch other accessories when pressed, affecting the pressing feel.

[0005] (2) The overall length of the atomizer pump also becomes longer, and the spring cannot be hidden, which affects the appearance of the product;

[0006] (3) Due to the overall size of the atomizer pump being too high, the design of other matching parts is affected, such as the pump cover, bottle body, etc. Summary of the Invention

[0007] In order to overcome the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an atomizing pump having the characteristics of large spray volume and good reliability.

[0008] Another object of the present invention is to provide a bottle comprising the above-mentioned atomizing pump.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] An atomizing pump comprises a pump body, a push cover, a pump rod, a piston and a locking cover;

[0011] The pump body is provided with a pump chamber, and a liquid inlet is provided at the bottom of the pump chamber; a liquid inlet valve is provided at the liquid inlet;

[0012] The push cover is provided with a mist point;

[0013] A liquid delivery channel is provided in the pump rod, and a liquid delivery port is provided at the lower end of the pump rod, which is connected to the liquid delivery channel; the upper end of the pump rod is connected to the press cover, and the liquid delivery channel is connected to the mist point;

[0014] The piston sleeve is outside the pump rod and includes a piston ring and a sealing portion; the piston ring is dynamically sealed with the inner wall of the pump chamber, the sealing portion corresponds to the liquid delivery port, and a first elastic element is provided between the piston and the pump rod. Under the elastic force of the first elastic element, the sealing portion of the piston is pressed against the liquid delivery port to form a seal; a limiting structure is provided between the piston and the pump rod for limiting the relative movement of the two.

[0015] The locking cover is fixed in the pump chamber, the pump rod is slidably arranged in the locking cover, and a guide structure is provided between the pump rod and the locking cover; a second elastic element is provided between the locking cover and the pump rod; the lower end of the pump rod, the piston ring and the sealing portion pass through the locking cover and are located in the pump chamber.

[0016] Preferably, the limiting structure includes a first step and a second step; the first step is provided on the inner wall of the piston, the second step is provided on the outer wall of the pump rod, and the first step corresponds to the second step;

[0017] In a non-pressed state, an axial travel gap is provided between the first step and the second step.

[0018] Preferably, the piston further comprises a sleeve; the sleeve is radially staggered from the sealing portion, and the top of the sealing portion constitutes the first step.

[0019] Preferably, the sleeve is sleeved outside the pump rod; the outer wall of the pump rod is provided with a first convex ring protruding in the radial direction; the two ends of the first elastic element act on the first convex ring and the top of the sleeve respectively.

[0020] Preferably, a radially protruding second convex ring is provided on the outer wall of the pump rod; a radially protruding third convex ring is provided inside the lock cover; and both ends of the second elastic element act on the second convex ring and the third convex ring respectively.

[0021] Preferably, the outer diameter of the second protruding ring is matched with the inner diameter of the locking cover to form a guiding structure between the pump rod and the locking cover.

[0022] Preferably, the guide structure includes a guide block and a guide groove; the guide block protrusion is arranged on the outer wall of the pump rod, and the guide groove is arranged on the inner wall of the lock cover and extends axially; the guide block is embedded in the guide groove.

[0023] Preferably, the piston is provided with a radially outwardly protruding limiting portion, and the outer diameter of the limiting portion gradually increases from top to bottom; in the non-pressed state, the bottom opening of the lock cover and the limiting portion are pressed against each other to achieve limiting and sealing to prevent the piston from continuing to move upward.

[0024] Preferably, the sealing portion is annular;

[0025] The lower end of the pump rod is provided with an annular end head, the annular end head is provided with an annular groove, a support platform is formed on the inner side of the annular groove, and the liquid delivery port is provided on the support platform;

[0026] In a non-pressed state, under the elastic force of the first elastic element, the lower end of the sealing portion is located in the annular groove and seals the liquid delivery port.

[0027] Preferably, the pump rod includes an upper pump rod and a lower pump rod, the upper pump rod is hollow, the lower pump rod is inserted into the upper pump rod and the upper pump rod and the lower pump rod are buckled with each other; the upper end of the upper pump rod is connected to the push cover, and the annular end head is arranged at the lower end of the lower pump rod.

[0028] Preferably, the outer wall of the lower pump rod is provided with a notch, and the notch is connected to the liquid delivery port; the liquid delivery channel is formed between the notch and the inner wall of the upper pump rod.

[0029] Preferably, an external snap-fitting portion is provided at the upper end of the lower pump rod, and an internal snap-fitting portion is provided in the inner cavity of the upper pump rod, the external snap-fitting portion is snapped onto the internal snap-fitting portion, and the internal snap-fitting portion is provided with a conducting groove extending along the axial direction of the upper pump rod, and the conducting groove connects the liquid delivery channel and the upper end opening of the upper pump rod.

[0030] Preferably, the external buckle portion includes a cylindrical portion and a frustum guide portion provided at the upper end of the lower pump rod; the outer diameter of the cylindrical portion is smaller than the outer diameter of the lower pump rod, the frustum guide portion is connected to the upper end of the cylindrical portion, and a buckle platform is formed between the lower end surface of the frustum guide portion and the cylindrical portion;

[0031] The inner buckle portion includes an inner boss, a center hole corresponding to the outer diameter of the cylindrical portion is provided at the center of the inner boss, and an introduction cone surface is provided on the inner wall of the lower pump rod at the lower end of the inner boss.

[0032] Preferably, it also includes a grab cover;

[0033] A radially outwardly protruding snap ring is provided at the upper end of the outer wall of the pump body; the grab cover is covered on the pump body, and the shoulder of the grab cover is deformed and closed at the snap ring through a grabbing process; the lower end opening of the grab cover is adapted to the opening of the bottle body, and the lower end opening of the grab cover is deformed and closed to the opening of the bottle body through a grabbing process.

[0034] Preferably, the lower end of the grip cover is bent outward to form a closing portion;

[0035] The atomizing pump further comprises a ring cover; the ring cover is sleeved outside the grip cover, and the lower end of the ring cover corresponds to the closing portion;

[0036] By pressing down the ring cover, the closing portion is forced to bend inward and close the opening and be fixed to the bottle opening.

[0037] Preferably, the closing portion is provided with a plurality of notches, and the plurality of notches divide the closing portion into a plurality of closing pieces.

[0038] Preferably, the liquid inlet valve includes a spherical sealing member and a limiting cavity; the limiting cavity is connected to the liquid inlet, the sealing member is located in the limiting cavity and can seal the liquid inlet, and the upper end of the limiting cavity is provided with an anti-escape portion for limiting the sealing member from escaping from the limiting cavity; under the action of pressure, the sealing member can move in the limiting cavity to open the liquid inlet.

[0039] Preferably, the anti-slip portion includes a plurality of elastic buckles, each of the elastic buckles is distributed along the circumferential direction, and the upper end of each elastic buckle is contracted toward the axis of the pump body to prevent the seal from escaping from the limiting cavity.

[0040] Preferably, a downwardly extending boss is provided at the bottom of the pump body, the limiting cavity and the sealing member are both arranged on the boss, the boss is provided with a conveying channel which is connected to the limiting cavity and is located below the limiting cavity, and the lower end opening of the limiting cavity forms the liquid inlet.

[0041] Preferably, a convex column is provided in the pump chamber, and the convex column extends upward in the pump chamber. The limiting cavity and the sealing member are both arranged on the convex column. The convex column is provided with a conveying channel which is connected to the limiting cavity and is located below the limiting cavity. The lower end opening of the limiting cavity forms the liquid inlet.

[0042] Preferably, a connecting channel is provided on the convex column, the upper end of the connecting channel is communicated with the delivery channel, and the lower end of the connecting channel is communicated with the outside of the pump body; and a liquid inlet pipe is assembled at the connecting channel.

[0043] A bottle comprises a bottle body and the atomizing pump; the atomizing pump is fixed at the opening of the bottle body.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] In order to increase the spray volume of the atomizing pump, increasing the capacity of the pump chamber is the first condition, that is, allowing the pump chamber to store more liquid.

[0046] The atomizing pump of the present invention is fixed with a locking cover in the pump chamber. The lock cover cooperates with the pump rod to increase the guidance of the pump rod when it is pressed and rebounds to reset. At the same time, combined with the guidance of the piston and the pump chamber, the guidance stability of the pump rod and the piston during movement is improved, the overall structure is more reliable, and the shaking effect is avoided, which provides favorable conditions for increasing the pressing stroke, so that the axial space of the pump chamber can be appropriately increased to increase the pump chamber capacity, thereby increasing the spray volume.

[0047] The present invention provides a limiting structure between the piston and the pump rod for limiting the stroke of the relative movement between the two, that is, limiting the separation range of the piston and the lower end of the pump rod, limiting the space for liquid to enter the liquid delivery channel through the liquid outlet, so that the pressure release in the pump chamber after the pressing operation is more concentrated and powerful, and the liquid is ejected more explosively, which is conducive to increasing the spray volume.

[0048] The present invention incorporates a first elastic element and a second elastic element between the piston and the pump rod, and between the pump rod and the lock cap, respectively, creating a dual elastic reset effect. This allows the pump rod and piston to rebound more quickly and forcefully, quickly sealing the liquid delivery port and allowing the pump chamber to quickly re-establish negative pressure, smoothly delivering liquid from the bottle into the pump chamber. Furthermore, compared to traditional built-in elastic elements (which are placed within the pump chamber), this prevents direct contact between the liquid and the elastic element, preventing any reaction between the liquid in the pump chamber and the elastic element, thus ensuring liquid quality.

[0049] In addition, as the spray volume of the atomizing pump increases, the change in the external dimensions is mainly reflected in the growth of the pump body, while the part exposed from the bottle body after assembly with the bottle body is similar to the size of the traditional pump structure, maintaining the beautiful appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] FIG1 is a perspective view of an atomizing pump according to the present invention.

[0052] FIG2 is a cross-sectional view of FIG1 .

[0053] FIG3 is a schematic diagram of FIG2 with the ring cover hidden and in a pressed state.

[0054] FIG4 is a perspective cross-sectional view of the upper pump rod, the lower pump rod and the piston.

[0055] Figure 5 is a three-dimensional cross-sectional view of the upper pump rod and the lower pump rod.

[0056] FIG6 is a perspective view of the lower pump rod.

[0057] FIG7 is a perspective cross-sectional view of the upper pump rod.

[0058] Components: 1 - Pump body, 101 - Pump chamber, 102 - Liquid inlet, 103 - Boss, 1031 - Delivery channel, 1032 - Connecting channel, 104 - Snap ring; 2 - Ring cover, 201 - Shoulder, 202 - Closing piece, 203 - Notch; 3 - Grab cover; 4 - Outer cover; 5 - Spray point; 6 - Liquid inlet pipe; 7 - Press cover, 701 - Liquid guide groove, 702 - Liquid spray channel, 703 - Connecting seat; 8 - Pump rod; 9 - Upper pump rod, 901 - Transition channel, 902 - First convex ring, 903 - Second convex ring, 904 - Inner buckle, 9041 - Inner boss, 9042 - Introducing cone, 9043 - Conducting notch, 905 - Second step; 10-lower pump rod, 1001-annular end, 10011-liquid delivery port, 10012-annular groove, 10013-support platform, 1002-missing surface, 1003-external buckling portion, 10031-cylindrical portion, 10032-cone guide portion, 10033-buckle platform; 11-locking cover, 1101-third convex ring; 12-first elastic element; 13-second elastic element; 14-piston, 1401-sleeve, 1402-piston ring, 1403-sealing portion, 14031-first step, 1404-limiting portion; 15-sealing gasket; 16-liquid inlet valve, 1601-limiting chamber, 1602-sealing element, 1603-elastic buckle; 17-liquid delivery channel. DETAILED DESCRIPTION

[0059] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0061] Example 1

[0062] Referring to Figures 1-7 , this embodiment discloses an atomizer pump comprising an outer cover 4, a push cover 7, a pump rod 8, a pump body 1, a piston 14, a locking cover 11, a gripping cover 3, and a ring cover 2. The atomizer pump is assembled with a bottle and fixed to the upper opening of the bottle, forming a container product capable of atomizing and spraying liquid, such as a perfume bottle. Of course, the atomizer pump of the present invention is not limited to perfume bottles and can also be used in other products requiring atomization and spraying of liquid.

[0063] 2-3 , the pump body 1 is provided with a pump chamber 101, which is open at the upper end and has a liquid inlet 102 at the bottom. A liquid inlet valve 16 is provided at the liquid inlet 102, which opens or seals the liquid inlet 102 according to pressure changes.

[0064] The pressing cover 7 is provided with a mist point 5 and a liquid spraying channel 702 and a liquid guide groove 701 for conveying liquid to the mist point 5. The liquid spraying channel 702 is connected to one side of the liquid guide groove 701. At the same time, the pressing cover 7 is also provided with a connecting seat 703, and the inner cavity of the connecting seat 703 is connected to the liquid guide groove 701.

[0065] The outer cover 4 is placed on the push cover 7 and is provided with a circular hole at the mist point 5 to expose the mist point 5 so that the liquid can be sprayed out smoothly.

[0066] A liquid delivery channel 17 is provided in the pump rod 8 , and a liquid delivery port 10011 communicating with the liquid delivery channel 17 is provided at the lower end of the pump rod 8 ; the upper end of the pump rod 8 is connected to the press cover 7 and the liquid delivery channel 17 is communicated with the mist point 5 .

[0067] The pump rod 8 of the present invention can adopt either a single or dual pump rod structure. In a single pump rod structure, structural features such as the liquid delivery channel 17 are located on a single component, resulting in a simple structure. For details, please refer to the prior art. In contrast, a dual pump rod structure is generally formed by assembling two components, simplifying the structural features of the components and making manufacturing and assembly more convenient. This embodiment employs a dual pump rod structure, namely, the pump rod 8 comprises an upper pump rod 9 and a lower pump rod 10.

[0068] Referring to Figures 2-7 , the upper pump rod 9 is hollow, and the lower pump rod 10 is inserted into the upper pump rod 9 . The upper and lower pump rods 9 and 10 interlock and can move synchronously. The upper end of the upper pump rod 9 is connected to the connecting seat 703 of the cover 7 . The lower end of the lower pump rod 10 is provided with an annular end 1001 , which is provided with an annular groove 10012 . A support platform 10013 is formed inside the annular groove 10012 , and the liquid delivery port 10011 is provided on this support platform 10013 . In addition, the outer wall of the lower pump rod 10 is provided with a notch 1002 , which is connected to the liquid delivery port 10011 ; the notch 1002 and the inner wall of the upper pump rod 9 form a liquid delivery channel 17 .

[0069] Referring to Figures 2 to 4, the piston 14 of this embodiment includes a sleeve 1401, a piston ring 1402, and a sealing portion 1403. The piston ring 1402 and the inner wall of the pump chamber 101 are pressed against each other to form a dynamic seal. The sleeve 1401 is sleeved on the outside of the upper pump rod 9; the outer wall of the upper pump rod 9 is provided with a first convex ring 902 that protrudes radially; a first elastic element 12 is provided between the first convex ring 902 and the top of the sleeve 1401, and the first elastic element 12 can be a spring. The sealing portion 1403 is annular, and in the non-pressed state, the elastic force of the first elastic element 12 causes the sealing portion 1403 to be embedded in the annular groove 10012 pressed against the annular end head 1001, thereby sealing the liquid delivery port 10011.

[0070] Referring to Figures 2-3, the lock cover 11 is fixed in the pump chamber 101, and the upper pump rod 9 can be slidably arranged in the lock cover 11. A guide structure is provided between the upper pump rod 9 and the lock cover 11, making the movement of the upper pump rod 9 and the lower pump rod 10 more reliable. A second elastic element 13 is provided between the lock cover 11 and the pump rod 8. The second elastic element 13 can be a spring to provide elastic force for rebound and reset for the upper pump rod 9, the lower pump rod 10 and the piston 14. In this embodiment, the length of the second elastic element 13 is longer than the first elastic element 12. Under the pressing operation, the second elastic element 13 is compressed first. The annular end 1001, the piston ring 1402 and the sealing portion 1403 of the lower pump rod 10 all extend out of the lock cover 11 and are located in the pump chamber 101. The first elastic element 12 and the second elastic element 13 of this embodiment are both located in the lock cover 11, so as to avoid contact with the liquid in the pump chamber 101 and avoid reaction, which is conducive to ensuring the quality of the liquid.

[0071] To facilitate assembly of the second elastic element 13, this embodiment features a radially protruding second protruding ring 903 on the outer wall of the upper pump rod 9, positioned above the first protruding ring 902. A radially protruding third protruding ring 1101 is positioned at the bottom of the locking cover 11. The two ends of the second elastic element 13 act on the second protruding ring 903 and the third protruding ring 1101, respectively. In this embodiment, the third protruding ring 1101 is located at the bottom of the locking cover 11, extending radially inward from the bottom. This provides support for the second elastic element 13 and also creates a accommodating space within the inner cavity of the locking cover 11, within which both the first elastic element 12 and the second elastic element 13 are located. Furthermore, the third protruding ring 1101 of this embodiment is not limited to being located at the bottom of the locking cover 11. For example, the third protruding ring 1101 can also be positioned in the middle of the inner cavity of the locking cover 11, shortening the length of the second elastic element 13 and potentially reducing shaking during the pressing process.

[0072] The second convex ring 903 of this embodiment is adapted to the inner diameter of the lock cover 11, forming a guide structure between the upper pump rod 9 and the lock cover 11, so that the movement of the upper pump rod 9 and the lower pump rod 10 is more stable and reliable, providing favorable conditions for increasing the pressing stroke. Even if the pressing stroke is increased, the movement of the pump rod 8 and the piston 14 will not shake, which is conducive to achieving the purpose of large spray volume and good hand feel.

[0073] The guide structure between the upper pump rod 9 and the lock cover 11 of this embodiment may also adopt other implementations. For example, an axially extending guide groove may be provided on the inner wall of the lock cover 11, and a raised guide block may be provided on the outer wall of the upper pump rod 9. The guide block is embedded in the guide groove, and a reliable guiding effect is formed through the cooperation of the two.

[0074] Furthermore, because the third raised ring 1101 of this embodiment is disposed at the bottom of the lock cover 11, it can be used to limit the position of the piston 14. Specifically, the piston 14 is provided with a radially outwardly protruding limiter 1404. This limiter 1404 is larger than the bottom opening of the lock cover 11. The bottom of the third raised ring 1101 of the lock cover 11 limits the limiter 1404, preventing the piston 14 from further upward movement. As shown in Figures 2-4, the limiter 1404 of this embodiment is located between the sleeve 1401 and the piston ring 1402 and gradually expands outward from top to bottom, forming a sloping outer wall. Such an expanded structure can be blocked by the bottom of the locking cover 11, thereby forming a limit when the piston 14 and the pump rod 8 move upward and reset. The outer wall of the limiting portion 1404 is inclined, which can enable the bottom of the locking cover 11 to form a more effective sealing effect on the limiting portion 1404. In other words, the limiting and sealing of the piston 14 is achieved by utilizing the cooperation between the limiting portion 1404 and the third convex ring 1101.

[0075] When the cover 7 is pressed to move the upper pump rod 9 and the lower pump rod 10 downward, the first elastic element 12 may cause the piston 14 to move downward synchronously. Of course, the piston 14 may also remain in the same position. Under the air pressure of the pump chamber 101 and the thrust of the liquid, the piston 14 cannot move downward, causing the first elastic element 12 to be compressed. At this time, the upper pump rod 9 and the lower pump rod 10 move downward relative to the piston 14, thereby opening the sealing portion 1403 of the piston 14 and the liquid delivery port 10011 on the annular end 1001 of the lower pump rod 10. The liquid in the pump chamber 101 reaches the mist point 5 through the liquid delivery port 10011, the liquid delivery channel 17, the liquid guide groove 701 on the cover 7, and the liquid spraying channel 702, and is finally atomized and sprayed. After the external pressure is removed, under the elastic force of the first elastic element 12 and the second elastic element 13, the upper pump rod 9, the lower pump rod 10, and the piston 14 return to their original position, and the liquid delivery port 10011 is sealed and closed by the sealing portion 1403, and the liquid spraying ends.

[0076] As the lower pump rod 10 continues to move downward during the pressing process, the gap between the annular end 1001 and the sealing portion 1403 may gradually increase, causing the liquid in the pump chamber 101 to release pressure too quickly, which will affect the explosive force of the liquid ejection. To solve this problem and ensure that the liquid ejects with sufficient explosive force, this embodiment provides a limit structure between the piston 14 and the upper pump rod 9 to limit the relative movement of the two.

[0077] Specifically, as shown in Figures 2-4, the limiting structure of this embodiment includes a first step 14031 and a second step 905. The first step 14031 is located on the inner wall of the piston 14, and the second step 905 is located on the outer wall of the upper pump rod 9, with the first step 14031 corresponding to the second step 905. In the non-pressed state, an axial travel gap is provided between the first step 14031 and the second step 905. This axial travel gap limits the gap between the annular end 1001 and the sealing portion 1403, allowing the liquid in the pump chamber 101 to have sufficient pressure and be ejected instantly and forcefully.

[0078] Furthermore, the sleeve 1401 and the sealing portion 1403 of this embodiment are radially offset, so that the top of the sealing portion 1403 forms a first step 14031. Furthermore, a radially protruding abutment is provided on the inner wall of the sealing portion 1403. This abutment dynamically seals against the outer wall of the upper pump rod 9, thereby improving the seal between the two parts and allowing liquid to be ejected smoothly through the liquid delivery port 10011 and the liquid delivery channel 17.

[0079] Of course, the limiting structure between the upper pump rod 9 and the piston 14 can also be provided elsewhere, primarily to limit the relative movement distance between the piston 14 and the upper pump rod 9 and lower pump rod 10. For example, a radially outwardly protruding structure can be provided on the outer wall of the upper pump rod 9, with the protruding structure facing the top of the sleeve 1401 of the piston 14, and the mutual limiting between the protruding structure on the upper pump rod 9 and the top of the sleeve 1401 is utilized to achieve the desired effect.

[0080] Referring to Figures 2 to 7, when the upper pump rod 9 and the lower pump rod 10 rebound and reset, the first elastic element 12 can cooperate with the second elastic element 13, which has a better effect on the upward movement of the upper pump rod 9 and the lower pump rod 10. At the same time, in the non-pressed state, the elastic force of the first elastic element 12 can cause the sealing portion 1403 of the piston 14 to more reliably press against the annular groove 10012 of the annular end 1001, and the sealing of the liquid delivery port 10011 is also more reliable. However, because the elastic force of the first elastic element 12 causes the piston 14 to exert a downward force on the lower pump rod 10, the pulling force between the upper pump rod 9 and the lower pump rod 10 is greater, and there is a risk that the upper pump rod 9 and the lower pump rod 10 will loosen. To address this issue, this embodiment provides an external snap-fit ​​portion 1003 at the upper end of the lower pump rod 10, and an internal snap-fit ​​portion 904 within the inner cavity of the upper pump rod 9. The external snap-fit ​​portion 1003 snaps onto the internal snap-fit ​​portion 904. The interlocking action of the external snap-fit ​​portion 1003 and the internal snap-fit ​​portion 904 enhances the anti-slip force between the upper and lower pump rods 9, 10. Furthermore, the internal snap-fit ​​portion 904 is provided with a conductive notch 9043 extending along the axis of the upper pump rod 9. The conductive notch 9043 connects the liquid delivery channel 17 with the upper end opening of the upper pump rod 9, ensuring smooth passage of liquid.

[0081] In this embodiment, the interlocking portion between the upper pump rod 9 and the lower pump rod 10 is located in the middle of the inner cavity of the upper pump rod 9. Therefore, a transition channel 901 for conveying liquid is formed above the interlocking portion. The conductive notch 9043 on the inner interlocking portion 904 connects the liquid delivery channel 17 and the transition channel 901, smoothly delivering the liquid to the upper end opening of the upper pump rod 9 and then flowing to the atomization point 5 on the press cover 7, and finally atomized and sprayed. In other words, when sprayed, the liquid passes through the liquid delivery port 10011, the liquid delivery channel 17, the conductive notch 9043, the transition channel 901, the liquid guide groove 701, and the liquid spraying channel 702 in sequence before reaching the atomization point 5.

[0082] Furthermore, the external fastening portion 1003 includes a cylindrical portion 10031 and a frustum guide portion 10032 disposed at the upper end of the lower pump rod 10. The outer diameter of the cylindrical portion 10031 is smaller than that of the lower pump rod 10. The frustum guide portion 10032 is connected to the upper end of the cylindrical portion 10031, and a fastening platform 10033 is formed between the lower end surface of the frustum guide portion 10032 and the cylindrical portion 10031. The internal fastening portion 904 includes an inner boss 9041, the center of which is provided with a center hole corresponding to the outer diameter of the cylindrical portion 10031. A guide conical surface 9042 is provided on the inner wall of the lower pump rod 10 at the lower end of the inner boss 9041. This fastening structure between the upper pump rod 9 and the lower pump rod 10 allows the upper pump rod 9 and the lower pump rod 10 to be locked together, significantly improving the anti-disengagement effect.

[0083] In order to further enhance the anti-slip force between the upper pump rod 9 and the lower pump rod 10, a recess can be provided on the inner wall of the upper pump rod 9 and a convex ring can be provided on the outer wall of the lower pump rod 10. After assembly, the convex ring is embedded in the recess.

[0084] Referring to Figures 1-3 , the atomizer pump of the present invention is secured to the bottle body via a gripping cap 3. To facilitate assembly of the gripping cap 3 with the pump body 1, a radially outwardly projecting snap ring 104 is provided on the upper outer wall of the pump body. The gripping cap 3 is secured to the pump body 1, and a shoulder 201 of the gripping cap 3 is deformed and closed to the snap ring 104 via a gripping process. The gripping process can be described in the prior art. The lower opening of the gripping cap 3 is adapted to fit the bottle body opening, and the gripping cap 3 is deformed and closed to the bottle body opening via the gripping process. To accommodate the gripping process, the gripping cap 3 of this embodiment is preferably made of a metal with a certain degree of deformability, such as aluminum. Aluminum gripping cap 3 can be deformed and closed via the gripping process, securing it to the pump body 1 and the bottle mouth. It also offers excellent strength and is resistant to breakage in the event of a collision. Furthermore, aluminum offers a superior aesthetic quality, making it particularly suitable for high-end products such as perfume bottles.

[0085] Furthermore, the lower opening of the gripping cover 3 is radially bent outward to form a closing portion for securing the bottle opening to the bottle. Multiple notches 203 are provided at the closing portion, extending to the sidewalls of the gripping cover 3, forming multiple closing tabs 202 at the closing portion. The ring cover 2 is positioned over the gripping cover 3, with its lower end aligned with the closing portion. Pressing down on the ring cover 2 forces the closing tabs 202 at the lower end of the gripping cover 3 to close and secure the bottle opening. This outward-bending closing portion in this embodiment allows the ring cover 2 to bend inward when pressed downward, providing a stronger grip and more secure fixation to the bottle opening. Furthermore, the outward expansion force of the deformed closing portion is significantly reduced or even eliminated, effectively preventing the atomizer pump from separating from the bottle. Furthermore, the closing portion is divided into multiple closing tabs 202, making it easier to bend and deform during closing while maintaining a firm grip on the bottle opening. The structure is simple and ingenious.

[0086] Furthermore, in this embodiment, a sealing gasket 15 is provided outside the pump body 1, and the sealing gasket 15 is located in the lower end opening of the gripping cover 3. The provision of the sealing gasket 15 can improve the sealing between the bottle body and the atomizing pump after the gripping cover 3 is fixed to the bottle body opening, thereby preventing liquid leakage.

[0087] The liquid inlet valve 16 of this embodiment includes a sealing member 1602 and a limiting cavity 1601; the limiting cavity 1601 is connected to the liquid inlet 102, the sealing member 1602 is located in the limiting cavity 1601 and can seal the liquid inlet 102, and the upper end of the limiting cavity 1601 is provided with an anti-slip portion for preventing the sealing member 1602 from escaping from the limiting cavity 1601; under the action of pressure, the sealing member 1602 can move in the limiting cavity 1601 to open the liquid inlet 102. When the air pressure in the pump chamber 101 is lower than the air pressure in the bottle body, the sealing member 1602 will be forced to move away from the liquid inlet 102 under the action of pressure, so that the liquid inlet 102 is opened and the liquid in the bottle body enters the pump chamber 101; when the air pressure between the pump chamber 101 and the bottle body is balanced, the sealing member 1602 falls back and presses on the liquid inlet 102, re-sealing the liquid inlet 102.

[0088] Furthermore, the anti-slip portion includes a plurality of elastic buckles 1603, each of which is distributed along the circumference, and the upper end of each elastic buckle 1603 is retracted toward the axis of the pump body 1 to prevent the seal 1602 from escaping the limiting cavity 1601. Generally speaking, providing three elastic buckles 1603 can effectively limit the seal 1602 from falling out, but the number of elastic buckles 1603 can be flexibly adjusted to ensure that the seal 1602 is properly restrained.

[0089] The sealing member 1602 of this embodiment is preferably in the shape of a ball, and may be a steel ball, a glass ball, or a ball made of other materials.

[0090] Furthermore, a downwardly extending boss 103 is provided at the bottom of the pump body 1. The limiting cavity 1601 and the sealing member 1602 are both disposed on the boss 103. The boss 103 is provided with a delivery channel 1031 that is in communication with the limiting cavity 1601 and is located below the limiting cavity 1601. The lower end opening of the limiting cavity 1601 forms the liquid inlet 102. In this embodiment, the inner wall of the lower half of the limiting cavity 1601 is configured to be tapered, allowing the spherical sealing member 1602 to more fully contact the inner wall there, thereby sealing the liquid inlet 102.

[0091] Furthermore, the boss 103 is provided with a connecting channel 1032, the upper end of which is connected to the delivery channel 1031, and the lower end of which is connected to the outside of the pump body 1. A liquid inlet pipe 6 is assembled at the connecting channel 1032. The liquid inlet pipe 6 can extend into the bottle to deliver the liquid in the bottle into the pump chamber 101.

[0092] As another embodiment, the protruding column 103 may also be configured to extend upward in the pump chamber 101 , so that the limiting cavity 1601 and the sealing member 1602 are all located in the pump chamber 101 .

[0093] 1 to 7 , the working principle of the atomizing pump of this embodiment is roughly as follows:

[0094] In the initial state, seal 1602 seals liquid inlet 102. Under the action of first elastic element 12 and second elastic element 13, cover 7, upper pump rod 9, lower pump rod 10, and piston 14 are all in their highest positions. Furthermore, under the action of first elastic element 12, sealing portion 1403 of piston 14 and annular groove 10012 of annular end 1001 abut against each other, effectively sealing liquid delivery port 10011 and preventing liquid leakage. When cover 7 is subjected to a downward external force, it drives upper pump rod 9 and lower pump rod 10 downward. If the liquid in pump chamber 101 cannot compress first elastic element 12 at this time, piston 14, upper pump rod 9, and lower pump rod 10 will move downward synchronously. When the liquid in the pump chamber 101 blocks the piston 14 from moving downward, the upper pump rod 9 and the lower pump rod 10 move downward relative to the piston 14, the first elastic element 12 is compressed, and the liquid delivery port 10011 on the annular end head 1001 opens, so that the air in the pump chamber 101 is delivered along the liquid delivery port 10011, the liquid delivery channel 17, the transition channel 901, the liquid guide groove 701, the liquid spray channel 702 and the outside of the mist point 5.

[0095] When the push-button cover 7 loses its external force, the upper pump rod 9, lower pump rod 10, and piston 14 rebound under the elastic action of the first elastic element 12 and the second elastic element 13, quickly forming a seal on the liquid delivery port 10011 on the annular end 1001. During the rapid reset process, a negative pressure is formed in the pump chamber 101, creating a pressure differential with the inner cavity of the bottle body, causing the seal 1602 to be pushed open and no longer seal the liquid inlet 102, thereby allowing the liquid in the bottle body to enter the pump chamber 101 to achieve air pressure balance between the pump chamber 101 and the bottle body. After the air pressure balance, the seal 1602 lands on the liquid inlet 102 again and seals it.

[0096] When the cover 7 is pressed again and the liquid delivery port 10011 on the annular end 1001 is opened, the liquid passes through the liquid delivery port 10011, the liquid delivery channel 17, the transition channel 901, the liquid guide groove 701, and the liquid spray channel 702 to reach the spray point 5, and is finally sprayed out in atomization. Because a limit structure is provided between the piston 14 and the upper pump rod 9 to limit the relative movement of the two, the gap between the annular end 1001 and the sealing portion 1403 will not continue to expand, allowing the liquid in the pump chamber 101 to have sufficient pressure and be sprayed out instantly and forcefully.

[0097] This embodiment also discloses a bottle, which includes a bottle body and the above-mentioned atomizing pump, wherein the atomizing pump is assembled and fixed at the opening of the bottle body. The bottle body can store different types of liquids, such as perfume, water, alcohol, etc.

[0098] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An atomization pump, characterized in that, It includes a pump body, a pressing cap, a pump rod, a piston and a locking cap; The pump body is provided with a pump chamber, and a liquid inlet is provided at the bottom of the pump chamber; a liquid inlet valve is provided at the liquid inlet; The pressing cap is provided with atomization points; A liquid delivery channel is arranged inside the pump rod, and a liquid delivery port communicating with the liquid delivery channel is arranged at the lower end of the pump rod; the upper end of the pump rod is connected to the pressing cap and the liquid delivery channel communicates with the atomization points; The piston is sleeved outside the pump rod and includes a piston ring and a sealing part; the piston ring is dynamically sealed with the inner wall of the pump chamber, the sealing part corresponds to the liquid delivery port, and a first elastic element is arranged between the piston and the pump rod. Under the elastic force of the first elastic element, the sealing part of the piston seals the liquid delivery port; a limiting structure for restricting the relative movement stroke between the two is arranged between the piston and the pump rod; The locking cap is fixed inside the pump chamber, the pump rod is slidably arranged inside the locking cap, and a guiding structure is arranged between the pump rod and the locking cap; a second elastic element is arranged between the locking cap and the pump rod; the lower end of the pump rod, the piston ring and the sealing part penetrate through the locking cap and are located inside the pump chamber.

2. The atomizing pump according to claim 1, wherein The limiting structure includes a first step and a second step; the first step is arranged on the inner wall of the piston, and the second step is arranged on the outer wall of the pump rod, and the first step corresponds to the second step; In a non-pressed state, there is an axial stroke gap between the first step and the second step.

3. The atomization pump according to any one of the preceding claims, characterized in that, The piston further includes a sleeve, and the sleeve is sleeved outside the pump rod; the sleeve is radially offset from the sealing part, and the top of the sealing part forms the first step.

4. The atomizing pump according to any one of the preceding claims, characterized in that, A first convex ring protruding radially is arranged on the outer wall of the pump rod; two ends of the first elastic element respectively act on the first convex ring and the top of the sleeve.

5. The atomizing pump according to any one of the preceding claims, characterized in that, A second convex ring protruding radially is arranged on the outer wall of the pump rod; a third convex ring protruding radially is arranged inside the locking cap; two ends of the second elastic element respectively act on the second convex ring and the third convex ring.

6. The atomizing pump according to any one of the preceding claims, characterized in that, The outer diameter of the second convex ring is adapted to the inner diameter of the locking cap to form a guiding structure between the pump rod and the locking cap.

7. The atomization pump according to any one of the preceding claims, characterized in that, The guiding structure includes a guiding block and a guiding groove; the guiding block protrudes on the outer wall of the pump rod, and the guiding groove is arranged on the inner wall of the locking cap and extends axially; the guiding block is embedded in the guiding groove.

8. The atomizing pump according to any one of the preceding claims, characterized in that, A limiting part protruding radially outward is arranged on the piston, and the outer diameter of the limiting part gradually increases from top to bottom; in a non-pressed state, the bottom opening of the locking cap abuts against the limiting part to achieve limiting and sealing to block the piston from continuing to move upward.

9. The atomizing pump according to any one of the preceding claims, characterized in that, The sealing part is annular; The lower end of the pump rod is provided with an annular end head, and an annular groove is arranged on the annular end head, and a supporting platform is formed inside the annular groove, and the liquid delivery port is arranged on the supporting platform; In a non-pressed state, under the elastic force of the first elastic element, the lower end of the sealing part is located in the annular groove and seals the liquid delivery port.

10. The atomization pump according to any one of the preceding claims, characterized in that, The pump rod includes an upper pump rod and a lower pump rod. The upper pump rod is hollow, and the lower pump rod is inserted into the upper pump rod and the upper pump rod and the lower pump rod are mutually buckled; the upper end of the upper pump rod is connected to the pressing cover, and the annular end is arranged at the lower end of the lower pump rod.

11. The atomizing pump according to any one of the preceding claims, characterized in that, The outer wall of the lower pump rod is provided with a missing surface, and the missing surface is docked with the liquid delivery port; a liquid delivery channel is formed between the missing surface and the inner wall of the upper pump rod.

12. The atomizing pump according to any one of the preceding claims, characterized in that, An outer buckling portion is provided at the upper end of the lower pump rod, and an inner buckling portion is provided in the inner cavity of the upper pump rod. The outer buckling portion is buckled on the inner buckling portion. A conducting missing groove extending along the axis direction of the upper pump rod is provided on the inner buckling portion, and the conducting missing groove communicates the liquid delivery channel and the upper end opening of the upper pump rod.

13. The atomizing pump according to any one of the preceding claims, characterized in that, The outer buckling portion includes a cylindrical portion and a frustum-shaped guiding portion arranged at the upper end of the lower pump rod; the outer diameter of the cylindrical portion is smaller than the outer diameter of the lower pump rod, the frustum-shaped guiding portion is connected to the upper end of the cylindrical portion, and a buckling platform is formed between the lower end surface of the frustum-shaped guiding portion and the cylindrical portion. The inner buckling portion includes an inner convex platform. A central hole equivalent to the outer diameter of the cylindrical portion is provided at the center of the inner convex platform. An introducing conical surface is provided on the inner wall of the lower pump rod at the lower end of the inner convex platform.

14. The atomizing pump according to any one of the preceding claims, characterized in that, It further includes a grasping cover. A clamping ring protruding radially outward is provided at the upper end of the outer wall of the pump body; the grasping cover covers the pump body, and the shoulder of the grasping cover is deformed and closed at the clamping ring through a grasping process; the lower end opening of the grasping cover is adapted to the bottle opening, and the lower end opening of the grasping cover is deformed and closed at the bottle opening through a grasping process.

15. The atomization pump according to any one of the preceding claims, characterized in that, The lower end of the grasping cover is bent outward to form a closing portion. The atomizing pump further includes a ring cover; the ring cover is sleeved outside the grasping cover, and the lower end of the ring cover corresponds to the closing portion. By pressing down the ring cover, the closing portion is urged to bend inward and close and is fixed to the bottle opening.

16. The atomization pump according to any one of the preceding claims, characterized in that, A plurality of notches are provided on the closing portion, and the plurality of notches divide the closing portion into a plurality of closing pieces.

17. The atomizing pump according to any one of the preceding claims, characterized in that, The liquid inlet valve includes a spherical sealing member and a limiting cavity; the limiting cavity communicates with the liquid inlet, the sealing member is located in the limiting cavity and can seal the liquid inlet, and an anti-detachment portion for restricting the sealing member from detaching from the limiting cavity is provided at the upper end of the limiting cavity; under the action of pressure, the sealing member can move in the limiting cavity to open the liquid inlet.

18. The atomization pump according to any one of the preceding claims, characterized in that, The anti-detachment portion includes a plurality of elastic buckles. Each elastic buckle is distributed along the circumferential direction, and the upper ends of each elastic buckle contract towards the axis of the pump body to block the sealing member from detaching from the limiting cavity.

19. The atomizing pump according to any one of the preceding claims, characterized in that, A convex column extending downward is provided at the bottom of the pump body. The limiting cavity and the sealing member are both arranged on the convex column. A delivery channel communicating with the limiting cavity and located below the limiting cavity is provided on the convex column, and the lower end opening of the limiting cavity forms the liquid inlet.

20. The atomization pump according to any one of the preceding claims, characterized in that, A convex column is provided in the pump chamber. The convex column extends upward in the pump chamber. The limiting cavity and the sealing member are both arranged on the convex column. A delivery channel communicating with the limiting cavity and located below the limiting cavity is provided on the convex column, and the lower end opening of the limiting cavity forms the liquid inlet.

21. The atomization pump according to any one of the preceding claims, characterized in that, A connecting channel is provided on the convex post. The upper end of the connecting channel communicates with the conveying channel, and the lower end of the connecting channel communicates with the outside of the pump body; a liquid inlet pipe is assembled at the connecting channel.

22. A bottle, characterized in that, It includes a bottle body and the atomizing pump according to any one of claims 1-21; the atomizing pump is fixed at the opening of the bottle body.

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