Perfume atomizing pump

Abstract

A perfume atomizing pump, comprising a pump body (1), a piston (7), an upper pump rod (6), a lower pump rod (5), an elastic member, and a spray cap (12), wherein the spray cap is provided with atomization spots (126). The pump body is provided with a pump chamber (1001), the upper end of the upper pump rod is connected to the spray cap, the lower pump rod is inserted into the upper pump rod, and the upper pump rod and the lower pump rod are engaged with each other to form a pump rod set capable of moving synchronously. The piston is sleeved outside the upper pump rod and the lower pump rod, and is movable downwardly as the upper pump rod is depressed. The piston forms a single-line seal with the inner wall of the pump chamber. The elastic member is used for the upward reset of the upper pump rod, the lower pump rod, the piston and the spray cap when depressed. The perfume atomizing pump has the characteristics of labor-saving pressing and good tactile feel, facilitating improvement of the user experience.

Description

A perfume atomizer pump Technical Field

[0001] The invention belongs to the technical field of pumps, and in particular relates to a perfume atomizing pump. Background Art

[0002] Perfume can emit a rich, long-lasting and pleasant aroma, which is used to give parts of the human body a long-lasting and pleasant fragrance. It is especially popular among women. In order to allow the perfume to be sprayed more evenly, the perfume bottle is generally equipped with an atomizer pump. Pressing the atomizer pump can atomize and spray the perfume.

[0003] Atomizer pumps typically use a press-to-dispense mechanism to atomize perfume. The comfort of the pressing action is a key factor influencing the user experience. Most atomizer pumps on the market experience difficulty pressing, resulting in a poor pressing feel and a negative impact on the user experience. Therefore, a new perfume atomizer pump is needed to address this issue. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a perfume atomizer pump, which has the characteristics of labor-saving pressing and good hand feel, which is conducive to improving the user experience.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A perfume atomizing pump, comprising a pump body, a piston, an upper pump rod, a lower pump rod, an elastic member and a spray cover;

[0007] The spray cover is provided with a mist point;

[0008] The pump body is provided with a pump chamber;

[0009] The upper end of the upper pump rod is connected to the spray cover;

[0010] 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 to form a pump rod group that can move synchronously;

[0011] The piston is sleeved outside the upper pump rod and the lower pump rod and can move downward as the upper pump rod is pressed downward; the piston is sealed with the inner wall of the pump chamber in a single linear manner;

[0012] The elastic member is used to reset the upper pump rod, the lower pump rod, the piston and the spray cover upward after being pressed downward.

[0013] Preferably, the piston includes a sleeve and a piston body for cooperating with the inner wall of the pump chamber, the piston body is connected to the sleeve, and the sleeve is arranged outside the upper pump rod; the piston body is provided with a radially outwardly expanding abutment portion, and the abutment portion is in dynamic sealing contact with the inner wall of the pump chamber.

[0014] Preferably, the elastic member comprises an upper spring and a lower spring;

[0015] The upper spring is arranged between the upper pump rod and the piston;

[0016] The lower spring is arranged between the lower end of the lower pump rod and the pump chamber.

[0017] Preferably, the upper pump rod includes an upper pump rod body and a positioning protrusion, and the positioning protrusion is radially outwardly protruding on the outer wall of the upper pump rod body; the piston also includes a center tube, and the center tube is arranged on the radial inner side of the sleeve, and an annular accommodating space is formed between the sleeve and the outer wall of the upper pump rod; the upper spring is located in the accommodating space, one end of the upper spring acts on the bottom surface of the positioning protrusion, and the other end of the upper spring acts on the top surface of the center tube.

[0018] Preferably, the inner wall of the central tube is provided with an inner convex ring protruding radially inward, and the inner convex ring is pressed against the outer wall of the upper pump rod to form a dynamic seal.

[0019] Preferably, the positioning protrusion is provided with a limiting protrusion protruding radially outward, and the limiting protrusion corresponds to the top of the sleeve.

[0020] Preferably, the lower pump rod includes a lower pump rod body and an annular end head; the annular end head is connected to the lower end of the lower pump rod body and is located in the pump chamber; the two ends of the lower spring act on the annular end head and the pump chamber respectively.

[0021] Preferably, an annular groove is provided on the annular end head, a support platform is formed on the inner side of the annular groove, and a liquid guide groove connected to the annular groove is provided on the support platform; a delivery channel connected to the mist point is provided between the lower pump rod and the upper pump rod, and the liquid guide groove is connected to the delivery channel;

[0022] The lower end of the central tube is located in the annular groove, and in a non-pressed state, the lower end of the central tube is pressed against the annular groove to seal the liquid guide groove.

[0023] Preferably, the outer wall of the lower pump rod body is provided with a notch, the notch is connected to the liquid guide groove; the space between the notch and the inner wall of the upper pump rod forms the delivery channel;

[0024] The lower end of the upper pump rod is located on the support platform.

[0025] Preferably, the upper end of the upper pump rod is provided with an opening, and the opening is communicated with the delivery channel;

[0026] A guide channel is provided at the joint between the spray cover and the opening, a liquid spray channel is provided on one side of the guide channel, a central rod is provided in the liquid spray channel, and the mist point is arranged on the central rod.

[0027] Preferably, an external snap-fitting portion is provided at the upper end of the lower pump rod body, and an internal snap-fitting portion is provided in the inner cavity of the upper pump rod body, 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 conveying channel and the opening.

[0028] Preferably, the external buckle portion includes a cylindrical portion and a frustum guide portion provided at the upper end of the lower pump rod body; the outer diameter of the cylindrical portion is smaller than the outer diameter of the lower pump rod body, 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;

[0029] 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 body at the lower end of the inner boss.

[0030] Preferably, a convex ring is provided on the outer wall of the lower pump rod body; a concave position is provided on the inner wall of the upper pump rod body; and the convex ring is adapted to the concave position.

[0031] Preferably, the upper end of the pump body is provided with a grip-free latch for preventing the piston from escaping, and the grip-free latch is covered with an outer cover.

[0032] Preferably, a snap ring is provided on the outer wall of the upper end of the pump body;

[0033] The grab-free bayonet includes a bayonet seat and a connecting ring; a bayonet seat is provided with a snap groove, and the snap ring is clamped in the snap groove; the connecting ring is arranged at the upper end of the bayonet seat and extends into the opening at the upper end of the pump body, the connecting ring is dynamically sealed with the outer wall of the piston, the outer wall of the piston is provided with an anti-slip portion protruding radially outward, and the lower end of the connecting ring limits the anti-slip portion to prevent the piston from slipping off.

[0034] Preferably, the bayonet seat includes a first horizontal portion, a first vertical portion and a second horizontal portion, the first horizontal portion is connected to the upper end of the first vertical portion and extends inward, the second horizontal portion is connected to the lower end of the first vertical portion and extends outward, and the connecting ring is connected to the inner end of the first horizontal portion; the outer cover includes a third horizontal portion, a second vertical portion, a fourth horizontal portion and a third vertical portion, the third horizontal portion, the second vertical portion, the fourth horizontal portion and the third vertical portion are connected in sequence from top to bottom, and the third horizontal portion extends inward to the connecting ring and rests against the upper end of the connecting ring; an outer cover arc-shaped connecting portion is formed between the second vertical portion and the fourth horizontal portion, a bayonet arc-shaped connecting portion is formed between the first vertical portion and the second horizontal portion of the bayonet seat, and the outer cover arc-shaped connecting portion is pressed against the bayonet arc-shaped connecting portion.

[0035] Preferably, a positioning slot is provided on the third vertical portion near the fourth horizontal portion; a positioning snap ring is connected to the outer end of the second horizontal portion; and the positioning snap ring is snapped into the positioning slot.

[0036] Preferably, a sealing gasket is sleeved on the outer wall of the pump body, and the outer wall of the sealing gasket is clamped on the inner wall of the positioning clamp ring.

[0037] Preferably, a liquid inlet is provided at the lower end of the pump body;

[0038] The pump chamber is provided with a liquid inlet valve for controlling the liquid to enter the inner cavity of the pump chamber; the liquid inlet valve includes a sealing member and a limiting cavity; the limiting cavity is communicated with 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 a limiting 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 limiting 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 sealing member from escaping from the limiting cavity.

[0040] 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 liquid delivery 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.

[0041] 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 liquid delivery 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.

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

[0043] Preferably, the sealing element is spherical.

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

[0045] The piston of the present invention aligns linearly with the inner wall of the pump chamber, effectively reducing friction between the two, making pressing easier and more labor-saving for the user. This improves the pressing feel and enhances the user experience. Besides being applicable to perfume bottles, the perfume atomizer pump of the present invention can also be used for other products that require atomization, such as medical liquids or other liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] 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.

[0047] FIG1 is a cross-sectional view of the perfume atomizer pump of the present invention when the protrusion is arranged to extend downward.

[0048] FIG2 is a cross-sectional schematic diagram of the perfume atomizing pump of the present invention when the spray cover is in the highest position.

[0049] FIG3 is a schematic diagram of the spray cover pressing process in FIG2 .

[0050] FIG4 is a schematic diagram of FIG3 when the lower pump rod and the piston body are separated and opened.

[0051] FIG5 is a perspective schematic diagram of the lower pump rod of the perfume atomizing pump of the present invention.

[0052] FIG6 is a schematic cross-sectional view of FIG5 .

[0053] FIG7 is a perspective schematic diagram of the upper pump rod in the perfume atomizing pump of the present invention.

[0054] FIG8 is a schematic cross-sectional view of FIG7 .

[0055] FIG9 is a schematic cross-sectional view of the upper pump rod and the lower pump rod after assembly.

[0056] FIG10 is a top view of the upper pump rod and the lower pump rod after being assembled according to the present invention.

[0057] FIG11 is a cross-sectional view of the perfume atomizer pump of the present invention, wherein the upper pump rod and the lower pump rod are provided with a convex ring and a concave position respectively.

[0058] FIG12 is a cross-sectional view of FIG11 from another angle.

[0059] FIG13 is a perspective view of the lower pump rod in FIG11 .

[0060] Among them: 1 - pump body, 1001 - pump chamber, 1002 - snap ring, 1003 - positioning rib; 2 - boss; 3 - limiting cavity, 31 - liquid inlet, 32 - liquid delivery channel, 33 - connecting channel, 34 - elastic buckle; 4 - sealing element; 5 - lower pump rod, 51 - lower pump rod pump body, 52 - annular end, 53 - annular groove, 54 - delivery channel, 55 - notched surface, 56 - external buckling portion, 561 - cylindrical portion, 562 - frustum guide portion, 563 - buckling platform, 57 - liquid inlet groove, 58 - support platform, 59 - positioning platform, 510 - convex ring; 6 - Upper pump rod, 61 - Upper pump rod body, 62 - Inner buckle connection, 621 - Inner boss, 622 - Guide cone, 63 - Conducting notch, 64 - Positioning protrusion, 65 - Position-limiting protrusion, 66 - Recess; 7 - Piston, 71 - Center tube, 72 - Inner convex ring, 73 - Connecting platform, 74 - Piston body, 75 - Sleeve, 76 - Abutment, 77 - Anti-slip portion, 78 - Accommodation space; 8 - Upper spring; 9 - Lower spring; 10 - Grab-free snap-fit, 101 - First horizontal portion, 102 - Snap-fit ​​groove, 103 - Connecting ring, 104 - Bayonet arc-shaped connecting portion, 105 - Second horizontal portion, 106 - First vertical portion, 107 - Positioning snap ring; 11-outer cover, 111-third horizontal portion, 112-second vertical portion, 113-arc-shaped connecting portion of the outer cover, 114-fourth horizontal portion, 115-third vertical portion, 116-positioning slot; 12-spray cover, 121-cover body, 122-flow guide channel, 123-connecting seat, 124-liquid spray channel, 125-center rod, 126-mist point; 13-aluminum cover; 14-sealing gasket; 15-liquid inlet pipe. DETAILED DESCRIPTION

[0061] 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.

[0062] 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.

[0063] Example 1

[0064] Referring to Figures 1-10 , this embodiment discloses a perfume atomizer pump comprising a pump body 1, a piston 7, an upper pump rod 6, a lower pump rod 5, an elastic member, a grip-free latch 10, an outer cover 11, and a spray cap 12. The spray cap 12 is provided with a spray point 126 for spraying atomized liquid; the pump body 1 is provided with a pump chamber 1001. The upper end of the upper pump rod 6 is connected to the spray cap 12. A connector 123 is provided on the downward-facing side of the spray cap 12. The upper end of the upper pump rod 6 is inserted into a slot in the connector 123 for securement. In this embodiment, the spray cap 12 is covered with an aluminum cover 13.

[0065] 1 to 4 , the piston 7 of this embodiment includes a sleeve 75 and a piston body 74 for cooperating with the inner wall of the pump chamber 1001. The upper end of the piston body 74 is connected to the sleeve 75, and the sleeve 75 is sleeved on the outside of the upper pump rod 6. The piston body 74 is provided with a radially outwardly enlarged abutment portion 76. The abutment portion 76 is in dynamic sealing contact with the inner wall of the pump chamber 1001 to form a single linear cooperating seal between the piston 7 and the inner wall of the pump chamber 1001. Specifically, the sealing effect between the piston 7 of this embodiment and the inner wall of the pump chamber 1001 is formed by the mutual abutment between the abutment portion 76 and the inner wall of the pump chamber 1001. In particular, compared with the traditional piston 7, the piston 7 of this embodiment has only one sealing abutment portion between the piston 7 and the inner wall of the pump chamber 1001, namely the abutment portion 76 of this embodiment, which makes it easier for the user to press and feel better. At the same time, the abutment portion 76 of this embodiment expands radially outward, and forms an outward-expanding tension after cooperating with the pump chamber 1001, which can effectively ensure the sealing effect between the two.

[0066] Furthermore, the lower pump rod 5 is inserted into the upper pump rod 6, and the upper and lower pump rods 6 and 5 interlock to form a pump rod assembly that can move synchronously. The piston 7 is mounted outside the upper and lower pump rods 6 and 5 and can move downward in response to the downward pressure of the upper pump rod 6. In addition, the elastic member is used to reset the upper pump rod 6, lower pump rod 5, piston 7, and spray cap 12 upward after being pressed downward, allowing the user to repeatedly press the spray cap 12 to spray the mist liquid multiple times.

[0067] The elastic member comprises an upper spring 8 and a lower spring 9. The upper spring 8 is positioned between the upper pump rod 6 and the piston 7; the lower spring 9 is positioned between the lower end of the lower pump rod 5 and the pump chamber 1001. The use of two springs improves the upward return speed and stability of the upper and lower pump rods 6 and 5, achieving rapid, precise, and stable return, thereby ensuring a more stable and uniform spray volume of the misted liquid.

[0068] Referring to Figures 5-9 , the lower pump rod 5 further comprises a cylindrical lower pump rod body 51 and an annular end cap 52. The annular end cap 52 is connected to the lower end of the lower pump rod body 51. An annular groove 53 is formed on the upper surface of the annular end cap 52. A support platform 58 is provided inside the annular groove 53. The support platform 58 is provided with a liquid inlet groove 57 that communicates with the annular groove 53. A notch 55 is provided on the outer wall of the lower pump rod body 51, communicating with the liquid inlet groove 57. Furthermore, the notch 55 and the liquid inlet groove 57 of this embodiment can be provided in one, two, or other numbers. To maintain balanced infusion and a stable spray volume, this embodiment employs two symmetrically arranged groups.

[0069] The upper pump rod 6 includes an upper pump rod body 61 and a positioning protrusion 64. The positioning protrusion 64 is radially outwardly projecting from the outer wall of the upper pump rod body 61, which is hollow. The lower pump rod body 51 is inserted into the inner cavity of the upper pump rod body 61. The lower end of the upper pump rod body 61 is supported on a support platform 58, which is located within the pump chamber 1001. After the lower pump rod body 51 is inserted into the inner cavity of the upper pump rod body 61, the space between the notched surface 55 of the lower pump rod body 51 and the inner wall of the upper pump rod body 61 forms a delivery channel 54.

[0070] Referring to Figures 1-4 , piston 7 also includes a center tube 71, which is positioned radially inwardly of sleeve 75. The upper end of center tube 71 is offset from sleeve 75 to form a connecting platform 73, which provides support for upper spring 8. The lower end of center tube 71 is matingly embedded in annular groove 53 of annular end 52, sealing against liquid guide groove 57 on annular end 52 when not pressed. The outer wall of center tube 71 is provided with a radially inwardly projecting inner convex ring 72, which abuts against the outer wall of upper pump rod body 61 to form a dynamic seal. Furthermore, an annular accommodating space 78 is formed between sleeve 75 and the outer wall of upper pump rod 6.

[0071] The upper spring 8 is sleeved on the outside of the upper pump rod body 61, and one end of the upper spring 8 acts on the bottom surface of the positioning protrusion 64, and the other end of the upper spring 8 acts on the connecting platform 73. In this embodiment, in order to better protect the upper spring 8 and prevent the upper spring 8 from being exposed, the sleeve 75 extends upward to the positioning protrusion 64, so that the sleeve 75 can cover the entire upper spring 8. In addition, a radially outward-protruding limiting protrusion 65 is provided at the upper end of the positioning protrusion 64. The limiting protrusion 65 corresponds to the top of the sleeve 75, and a gap is left between the limiting protrusion 65 and the top of the sleeve 75. This gap is used to allow the upper pump rod 6 and the lower pump rod 5 to still have a certain downward pressure distance when the piston 7 cannot continue to move downward, thereby realizing the separation of the piston body 74 and the annular end head 52 and allowing the liquid to be sprayed out smoothly.

[0072] One end of the lower spring 9 acts on the bottom of the annular terminal 52, and the other end acts in the pump chamber 1001. For the convenience of the cooperation between the lower spring 9 and the annular terminal 52, the bottom of the annular terminal 52 is provided with a positioning platform 59, and the lower spring 9 can be enclosed outside the positioning platform 59.

[0073] Referring to Figures 1 to 9, in order to better buckle the upper pump rod 6 and the lower pump rod 5 together to form a pump rod group that can move synchronously, this embodiment provides an external buckling portion 56 at the upper end of the lower pump rod body 51, and an internal buckling portion 62 is provided on the inner wall of the middle part of the upper pump rod body 61, and the external buckling portion 56 is buckled onto the internal buckling portion 62.

[0074] Specifically, the external locking portion 56 of this embodiment comprises a cylindrical portion 561 disposed at the upper end of the lower pump rod body 51 and a frustum-shaped guide portion 562 connected to the upper end of the cylindrical portion 561. The outer diameter of the cylindrical portion 561 is smaller than that of the lower pump rod body 51. A locking platform 563 is formed between the lower end surface of the frustum-shaped guide portion 562 and the upper end surface of the cylindrical portion 561. The internal locking portion 62 comprises an inner boss 621, with a central hole corresponding to the outer diameter of the cylindrical portion 561 defined at its center. A guide tapered surface 622 is provided on the inner wall of the lower pump rod body 51 below the inner boss 621. The external locking portion 56 and the internal locking portion 62 provide greater pull-off strength between the upper and lower pump rods 6 and 5, effectively preventing accidental separation of the upper and lower pump rods 6 and 5 during use and significantly improving the overall performance of the perfume pump. An introduction cone 622 is provided on the inner wall of the upper pump rod body 61 , and the introduction cone 622 cooperates with the frustum guide portion 562 to facilitate the insertion of the lower pump rod body 51 into the upper pump rod body 61 to complete the assembly.

[0075] To ensure smooth passage of liquid or gas through the upper and lower pump rods 6 and 5, a conductive notch 63 is provided on the inner coupling portion 62 along the axis of the upper pump rod 6. This conductive notch 63 connects the delivery channel 54 with the opening at the upper end of the upper pump rod body 61. The spray cap 12 of this embodiment includes a cover 121, which is provided with a flow guide channel 122. The upper end of a connecting seat 123 is connected to the flow guide channel 122, thereby connecting the upper end opening of the upper pump rod 6 with the flow guide channel 122. The flow guide channel 122 is connected to a liquid spray channel 124, within which a central rod 125 is disposed. A spray point 126 is located at the outer end of the central rod 125. The liquid in the pump chamber 1001 can enter the delivery channel 54 surrounded by the notch 55 on the outer wall of the lower pump rod body 51 and the inner wall of the upper pump rod body 61 through the liquid inlet groove 57, and then enter the cavity of the upper pump rod body 61 at the upper part of the inner buckle 62 through the conductive notch 63. Since the delivery channel 54 and the conductive notch 63 are smaller than the general pump rod channel, the liquid can obtain a greater pressure during the pumping process, so that the liquid can be output to the spray cover 12 and the mist point 126 more quickly, thereby forming a better atomization effect.

[0076] The aluminum cover 13 of this embodiment is put on the spray cover 12, and is hollowed out at the mist point 126 to expose the mist point 126. The lower end of the aluminum cover 13 extends to the outer cover 11, making the overall structure more beautiful and high-end, and the internal structure can be shielded by the aluminum cover 13 and the outer cover 11.

[0077] Referring to Figures 1 to 4, the grab-free snap-in 10 of this embodiment can prevent the piston 7 from escaping from the pump chamber 1001, and the outer cover 11 is sleeved on the outside of the grab-free snap-in 10. Among them, a snap ring 1002 is provided on the outer wall of the upper end of the pump body 1. The grab-free snap-in 10 includes a snap-in seat and a connecting ring 103; a snap-in groove 102 is provided in the snap-in seat, and the snap-in ring 1002 is snapped into the snap-in groove 102. The connecting ring 103 is arranged at the upper end of the snap-in seat and extends into the upper end opening of the pump body 1. The connecting ring 103 is dynamically sealed with the outer wall of the sleeve 75 of the piston 7. The pump chamber 1001 and the grab-free snap-in 10 of this embodiment cooperate with each other through the snap ring 1002 and the snap-in groove 102, so that the pump chamber 1001 and the grab-free snap-in 10 can be quickly connected, and the grabbing process can be eliminated, making assembly more convenient and quick, and also making the product more beautiful as a whole.

[0078] Furthermore, the outer wall of the piston 7 is provided with a radially outwardly protruding anti-slip portion 77, and the lower end of the connecting ring 103 limits the anti-slip portion 77 to prevent the piston 7 from slipping out. Specifically, the connection between the piston body 74 and the sleeve 75 is tilted radially outward, thereby forming the anti-slip portion 77 that cooperates with the lower end of the connecting ring 103.

[0079] Furthermore, the bayonet mount of this embodiment includes a first horizontal portion 101, a first vertical portion 106, and a second horizontal portion 105. The first horizontal portion 101 is connected to the upper end of the first vertical portion 106 and extends inward. The second horizontal portion 105 is connected to the lower end of the first vertical portion 106 and extends outward. The connecting ring 103 is connected to the inner end of the first horizontal portion 101. The outer cover 11 includes a third horizontal portion 111, a second vertical portion 112, a fourth horizontal portion 114, and a third vertical portion 115. The third horizontal portion 111, the second vertical portion 112, the fourth horizontal portion 114, and the third vertical portion 115 are connected in sequence from top to bottom, and the third horizontal portion 111 extends inward to the connecting ring 103 and abuts the upper end of the connecting ring 103. An outer cover arcuate connection portion 113 is formed between the second vertical portion 112 and the fourth horizontal portion 114. A bayonet arcuate connection portion 104 is formed between the first vertical portion 106 and the second horizontal portion 105 of the bayonet mount. The outer cover arcuate connection portion 113 presses against the bayonet arcuate connection portion 104. In this embodiment, the engaging groove 102 is provided on the inner wall of the first vertical portion 106. The engaging ring 1002 at the upper end of the pump body 1 is located within the engaging groove 102 and presses against the bottom surface of the first horizontal portion 101. A positioning engaging groove 116 is provided on the third vertical portion 115 near the fourth horizontal portion 114. A positioning snap ring 107 is connected to the outer end of the second horizontal portion 105; the positioning snap ring 107 snaps into the positioning snap groove 116.

[0080] The snap-fitting groove 102 on the grab-free snap-fitting port 10 of this embodiment forms a first fit with the snap-fitting ring 1002 at the upper end of the pump body 1, the upper end of the connecting ring 103 presses against the bottom surface of the third horizontal portion 111 of the outer cover 11 to form a second fit, the arc-shaped connecting portion 113 of the outer cover presses against the arc-shaped connecting portion 104 of the snap-fitting port to form a third fit, and the positioning snap ring 107 on the second horizontal portion 105 is snap-fitted into the positioning slot 116 of the third vertical portion 115 to form a fourth fit, thereby clamping and fixing the outer cover 11, the grab-free snap-fitting port 10 and the pump body 1 to each other to form a firm assembly relationship.

[0081] Furthermore, in order to improve the clamping strength between the positioning snap ring 107 and the positioning slot 116, the positioning snap ring 107 of this embodiment extends downward and outward, so that the positioning snap ring 107 can better rest against the positioning slot 116, and form an effect of fixing the outer cover 11 and the grab-free snap port 10 to each other.

[0082] The outer wall of the pump body 1 of this embodiment is provided with a sealing gasket 14, and the outer wall of the sealing gasket 14 is clamped on the inner wall of the positioning clamp ring 107. The sealing gasket 14 effectively improves the sealing between the pump body 1 and the bottle body, and between the grip-free clamping port 10 and the bottle body.

[0083] The pump chamber 1001 of this embodiment is provided with an inlet valve for controlling the entry of liquid into the pump chamber 1001. The inlet valve includes a sealing member 4 and a limiting chamber 3. The limiting chamber 3 is connected to the liquid inlet 31 at the bottom of the pump chamber 1001. The sealing member 4 is located within the limiting chamber 3 and can seal the liquid inlet 31. The upper end of the limiting chamber 3 is provided with a limiting portion for preventing the sealing member 4 from escaping from the limiting chamber 3. Under the action of pressure, the sealing member 4 can move within the limiting chamber 3 to open the liquid inlet 31. When the air pressure within the pump chamber 1001 is lower than the air pressure within the bottle, the pressure forces the sealing member 4 to move away from the liquid inlet 31, causing the liquid inlet 31 to open and allowing the liquid in the bottle to enter the pump chamber 1001. When the air pressure between the pump chamber 1001 and the bottle reaches equilibrium, the sealing member 4 descends and presses against the liquid inlet 31, resealing the liquid inlet 31.

[0084] Furthermore, the limiting portion of this embodiment includes a plurality of elastic buckles 34, each of which is distributed along the circumference, and the upper end of each elastic buckle 34 is retracted toward the axis of the pump body 1 to prevent the seal 4 from escaping the limiting cavity 3. Generally speaking, providing three elastic buckles 34 can effectively limit the seal 4 from escaping, but the number of elastic buckles 34 can be flexibly adjusted to ensure that the seal 4 is properly restrained.

[0085] The sealing member 4 of this embodiment is in the shape of a ball, and may be a steel ball, a glass ball, or a ball made of other materials.

[0086] A boss 2 is provided in the pump chamber 1001, extending upward therefrom. A limiting cavity 3 and a sealing member 4 are both provided on the boss 2. A liquid delivery channel 32 is provided on the boss 2, communicating with and located below the limiting cavity 3. The lower end of the limiting cavity 3 opens to form a liquid inlet 31. The boss 2 extending upward therefrom in the pump chamber 1001 effectively reduces the distance between the liquid flowing out of the pump chamber 1001 and the annular end 52 of the lower pump rod 5. This allows the liquid to enter the delivery channel 54 and be ejected more quickly and conveniently through the liquid introduction groove 57 on the annular end 52, greatly improving pumping efficiency.

[0087] The boss 2 is provided with a connecting channel 33, the upper end of which communicates with the liquid delivery channel 32, and the lower end of which communicates with the exterior of the pump body 1. A liquid inlet pipe 15 is assembled at the connecting channel 33. The provision of the liquid inlet pipe 15 facilitates the pumping of liquid within the bottle, allowing it to extend into the bottom of the bottle. The provision of the connecting channel 33 also facilitates the assembly and connection between the liquid inlet pipe 15 and the pump body 1.

[0088] The pump chamber 1001 of this embodiment is provided with a plurality of positioning ribs 1003 at the bottom, spaced apart along the inner wall of the pump chamber 1001. The inlet valve is located within the area enclosed by the positioning ribs 1003. The positioning ribs 1003 limit the position of the piston 7, limiting its lowest point during movement. They also increase the rigidity of the pump body 1. Furthermore, by utilizing the structure of the boss 2 and the positioning ribs 1003, the lower end of the lower spring 9 of this embodiment is positioned outside the boss 2 and within the positioning ribs 1003.

[0089] Referring to Figures 1-10 , the operating principle of the perfume atomizer pump of this embodiment is as follows: Initially, the seal 4 closes the liquid inlet 31. Under the action of the upper spring 8 and lower spring 9, the spray cover 12, upper pump rod 6, lower pump rod 5, and piston 7 are all in their highest positions. Furthermore, under the action of the upper spring 8 and lower spring 9, the lower end of the central tube 71 of the piston 7 seals against the annular groove 53 of the annular end 52, effectively sealing the liquid inlet 57 and preventing liquid leakage. When the spray cover 12 is subjected to a downward external force, it drives the upper and lower pump rods 6 and 5 downward. Simultaneously, under the action of the upper spring 8, the piston 7 moves downward synchronously with the upper and lower pump rods 6 and 5. When the piston body 74 of the piston 7 presses against the upper end of the positioning rib 1003, the piston 7 stops moving downward. At this point, the upper spring 8 is compressed, and the upper and lower pump rods 6 and 5 continue to move downward until the stopper 65 on the upper pump rod 6 is stopped by the upper end of the sleeve 75 of the piston 7. During the downward movement of the upper pump rod 6 and the lower pump rod 5 relative to the piston 7, the central tube 71 of the piston 7 and the annular groove 53 of the annular end 52 of the lower pump rod 5 are separated from each other, so that the liquid inlet groove 57 is opened. At this time, the air in the pump chamber 1001 can be discharged to the outside through the liquid inlet groove 57, the conveying channel 54, and the guide channel 122 and the spray channel 124 on the spray cover 12.

[0090] When the spray cap 12 loses its external force, the elastic action of the upper spring 8 and the lower spring 9 drives the annular end 52 of the lower pump rod 5 to quickly form a seal with the piston 7, and the upper pump rod 6, the lower pump rod 5 and the piston 7 move upward synchronously to the initial position. At this time, the anti-slip portion 77 of the piston 7 is restrained by the connecting ring 103 of the grip-free clamping mouth 10. During the rapid reset process, a negative pressure is formed in the pump chamber 1001, and a pressure difference is formed with the inner cavity of the bottle body, so that the seal 4 is pushed away and no longer seals the liquid inlet 31, allowing liquid to enter the pump chamber 1001 to achieve air pressure balance between the pump chamber 1001 and the bottle body. After the air pressure balance, the seal 4 lands on the liquid inlet 31 again and seals.

[0091] When the spray cap 12 is pressed again, the liquid in the pump chamber 1001 is compressed, and when the central tube 71 of the piston 7 separates from the annular end 52, causing the liquid inlet groove 57 to open, the liquid quickly reaches the mist point 126 through the liquid inlet groove 57, the delivery channel 54, the guide channel 122 and the spray channel 124 and is atomized and sprayed out.

[0092] Example 2

[0093] The difference between this embodiment and embodiment 2 is that:

[0094] Referring to Figure 1 , the pump body 1 of this embodiment is provided with a downwardly extending boss 2 at the bottom, with a limiting cavity 3 and a sealing member 4 both disposed on the boss 2. The boss 2 is provided with a liquid delivery channel 32 that communicates with and is located below the limiting cavity 3. The lower end of the limiting cavity 3 opens to form a liquid inlet 31. In this embodiment, the inner wall of the limiting cavity 3 is tapered, allowing the spherical sealing member 4 to more fully contact the inner wall of the limiting cavity 3, thereby sealing the liquid inlet 31.

[0095] Example 3

[0096] The difference between this embodiment and embodiment 1 is that:

[0097] Referring to Figures 11-13 , this embodiment features a raised ring 510 on the outer wall of the lower pump rod body 51, below the outer fastening portion 56. A recess 66 is defined on the inner wall of the upper pump rod 6 where the raised ring 510 mates. This ring 510 fits snugly within the recess 66, allowing the upper and lower pump rod bodies 61 and 51 to be assembled, securing the engagement and preventing the upper and lower pump rods 6 and 5 from becoming loose.

[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. A perfume atomizing pump, characterized in that, It includes a pump body, a piston, an upper pump rod, a lower pump rod, an elastic member, and a spray cap; The spray cap is provided with mist points; The pump body is provided with a pump chamber; The upper end of the upper pump rod is connected to the spray cap; The lower pump rod is inserted into the upper pump rod, and the upper pump rod and the lower pump rod are mutually engaged to form a pump rod group capable of synchronous movement; The piston is sleeved outside the upper pump rod and the lower pump rod, and can move downward with the downward pressure of the upper pump rod; the piston is linearly sealed with the inner wall of the pump chamber; The elastic member is used for the upward reset of the upper pump rod, the lower pump rod, the piston, and the spray cap after being pressed downward.

2. The perfume atomizing pump according to claim 1, wherein The piston includes a sleeve and a piston body for cooperating with the inner wall of the pump chamber. The piston body is connected to the sleeve, and the sleeve is sleeved outside the upper pump rod; a radially outwardly expanding abutting portion is provided on the piston body, and the abutting portion is in dynamic sealing contact with the inner wall of the pump chamber.

3. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The elastic member includes an upper spring and a lower spring; The upper spring is arranged between the upper pump rod and the piston; The lower spring is arranged between the lower end of the lower pump rod and the pump chamber.

4. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The upper pump rod includes an upper pump rod body and a positioning convex portion. The positioning convex portion protrudes radially outward on the outer wall of the upper pump rod body; the piston further includes a central tube. The central tube is arranged on the radially inner side of the sleeve, and an annular accommodating space is formed between the sleeve and the outer wall of the upper pump rod; the upper spring is located in the accommodating space, one end of the upper spring acts on the bottom surface of the positioning convex portion, and the other end of the upper spring acts on the top surface of the central tube.

5. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The inner wall of the central tube is provided with a radially inwardly protruding inner convex ring, and the inner convex ring abuts against the outer wall of the upper pump rod and forms a dynamic seal.

6. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The positioning convex portion is provided with a radially outwardly protruding limit convex portion, and the limit convex portion corresponds to the top of the sleeve.

7. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The lower pump rod includes a lower pump rod body and an annular end head; the annular end head is connected to the lower end of the lower pump rod body and is located in the pump chamber; both ends of the lower spring act on the annular end head and the pump chamber respectively.

8. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The annular end head is provided with an annular groove, a support platform is formed inside the annular groove, and a liquid guiding groove communicating with the annular groove is provided on the support platform; a conveying channel communicating with the mist points is provided between the lower pump rod and the upper pump rod, and the liquid guiding groove communicates with the conveying channel; The lower end of the central tube is located in the annular groove, and in the non-pressing state, the lower end of the central tube abuts tightly in the annular groove to seal the liquid guiding groove.

9. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The outer wall of the lower pump rod body is provided with a missing surface, and the missing surface is docked with the liquid guiding groove; the space between the missing surface and the inner wall of the upper pump rod forms the conveying channel; The lower end of the upper pump rod is located on the support platform.

10. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The upper end of the upper pump rod is provided with an opening, and the opening communicates with the conveying channel; A diversion channel is provided at the docking portion of the spray cap and the opening. A spray liquid channel is provided on one side of the diversion channel, and a central rod is provided in the spray liquid channel. The mist points are arranged on the central rod.

11. The perfume atomizing pump according to any one of the preceding claims, characterized in that, An external fastening portion is provided at the upper end of the lower pump rod body. An internal fastening portion is provided in the inner cavity of the upper pump rod body. The external fastening portion is fastened to the internal fastening portion. A conducting notch extending along the axis direction of the upper pump rod is provided on the internal fastening portion, and the conducting notch communicates with the conveying channel and the opening.

12. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The external fastening portion includes a cylindrical portion and a frustum-shaped guiding portion provided at the upper end of the lower pump rod body. The outer diameter of the cylindrical portion is smaller than the outer diameter of the lower pump rod body. The frustum-shaped guiding portion is connected to the upper end of the cylindrical portion, and a fastening platform is formed between the lower end surface of the frustum-shaped guiding portion and the cylindrical portion. The internal fastening portion includes an inner boss. A central hole equivalent to the outer diameter of the cylindrical portion is provided at the center of the inner boss. A guiding conical surface is provided on the inner wall of the lower pump rod body at the lower end of the inner boss.

13. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A convex ring is provided on the outer wall of the lower pump rod body. A concave position is provided on the inner wall of the upper pump rod body. The convex ring is adapted to the concave position.

14. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A non-grip bayonet for preventing the piston from disengaging is provided at the upper end of the pump body, and an outer cover is sleeved outside the non-grip bayonet.

15. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A clamping ring is provided on the outer wall at the upper end of the pump body. The non-grip bayonet includes a bayonet seat and a connecting ring. A clamping groove is provided in the bayonet seat, and the clamping ring is clamped in the clamping groove. The connecting ring is provided at the upper end of the bayonet seat and extends into the opening at the upper end of the pump body. The connecting ring is dynamically sealed with the outer wall of the piston. A radially outward protruding anti-disengagement portion is provided on the outer wall of the piston, and the lower end of the connecting ring limits the anti-disengagement portion to achieve anti-disengagement of the piston.

16. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The bayonet seat includes a first horizontal portion, a first vertical portion and a second horizontal portion. The first horizontal portion is connected to the upper end of the first vertical portion and extends inward. The second horizontal portion is connected to the lower end of the first vertical portion and extends outward. The connecting ring is connected to the inner end of the first horizontal portion. The outer cover includes a third horizontal portion, a second vertical portion, a fourth horizontal portion and a third vertical portion, which are connected in sequence from top to bottom. The third horizontal portion extends inward to the connecting ring and abuts against the upper end of the connecting ring. An outer cover arc connecting portion is formed between the second vertical portion and the fourth horizontal portion. A bayonet arc connecting portion is formed between the first vertical portion and the second horizontal portion of the bayonet seat. The outer cover arc connecting portion presses against the bayonet arc connecting portion.

17. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A positioning card slot is provided at the position where the third vertical portion is close to the fourth horizontal portion. A positioning clamping ring is connected to the outer end of the second horizontal portion. The positioning clamping ring is clamped in the positioning card slot.

18. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A sealing gasket is sleeved on the outer wall of the pump body, and the outer wall of the sealing gasket is clamped on the inner wall of the positioning clamping ring.

19. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A liquid inlet is provided at the lower end of the pump body. A liquid inlet valve for controlling liquid to enter the inner cavity of the pump chamber is provided in the pump chamber; the liquid inlet valve includes a seal and a limiting cavity; the limiting cavity communicates with the liquid inlet, the seal is located in the limiting cavity and can seal the liquid inlet, and a limiting portion for restricting the seal from disengaging from the limiting cavity is provided at the upper end of the limiting cavity; under the action of pressure, the seal can move in the limiting cavity to open the liquid inlet.

20. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The limiting portion includes a plurality of elastic buckles, each of the elastic buckles is distributed along the circumferential direction, and the upper ends of the elastic buckles contract towards the axis of the pump body to block the seal from disengaging from the limiting cavity.

21. The perfume atomizing 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 seal are both arranged on the convex column, a liquid 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.

22. The perfume 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 seal are both arranged on the convex column, a liquid 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.

23. The perfume atomizing pump according to any one of the preceding claims, characterized in that, A connecting channel is provided on the convex column, the upper end of the connecting channel communicates with the liquid delivery 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.

24. The perfume atomizing pump according to any one of the preceding claims, characterized in that, The seal is spherical.

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