Perfume atomizing pump

Abstract

The invention belongs to the technical field of pumps, and provides a perfume atomizing pump which comprises a pump body, a piston, an upper pump rod, a lower pump rod, an elastic piece and a spraying cover. The spraying cover is provided with a mist point; the pump body is provided with a pump chamber; the upper end of the upper pump rod is connected with the spray cover; 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 set capable of moving synchronously. The upper pump rod and the lower pump rod are sleeved with the piston, and the piston can move downwards along with downward pressing of the upper pump rod. The piston and the inner wall of the pump chamber are sealed in a single-line mode. And the elastic piece is used for upward resetting after the upper pump rod, the lower pump rod, the piston and the spray cover are pressed downwards. The method has the characteristics of labor-saving pressing and good hand feeling, and is beneficial to improving the use experience of a user.

Description

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, lasting and pleasant aroma, which is used to give the human body a long-lasting and pleasant aroma. 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 generally use a pressing method to achieve the atomization and spraying of perfume, and whether the pressing process feels comfortable will be one of the main factors affecting the user experience. Most atomizer pump products on the market have the problem of laboriousness when pressing, resulting in a poor pressing feel, which affects the user experience. Therefore, it is necessary to propose a new perfume atomizer pump to solve the problem of poor pressing feel. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, an object 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 comprises 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 for returning the upper pump rod, the lower pump rod, the piston and the spray cover to an upward position 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 an abutment portion which expands radially outward, 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 disposed 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 comprises 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, a support platform is formed on the inner side of the annular groove, and a liquid inlet 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 inlet 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, and the notch is butted against 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, an opening is provided at the upper end of the upper pump rod, 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 center rod is provided in the liquid spray channel, and the mist point is arranged on the center rod.

[0027] Preferably, an external snap-fit ​​portion is provided at the upper end of the lower pump rod body, and an internal snap-fit ​​portion is provided in the inner cavity of the upper pump rod body, the external snap-fit ​​portion is snapped onto the internal snap-fit ​​portion, and the internal snap-fit ​​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 outer buckle portion comprises 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 connection portion comprises an inner boss, the center of the inner boss is provided with a center hole equivalent to the outer diameter of the cylindrical portion, 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, the outer wall of the lower pump rod body is provided with a convex ring; the inner wall of the upper pump rod body is provided with a concave position; 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 clamping 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 bayonet groove, and the bayonet ring is clamped in the bayonet 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 sequentially connected from top to bottom, and the third horizontal portion extends inward to the connecting ring and abuts 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 presses on the bayonet arc-shaped connecting portion.

[0035] Preferably, a positioning groove is provided in 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 groove.

[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 comprises a plurality of elastic buckles, each of the elastic buckles is distributed along the circumferential direction, and the upper end of each of the elastic buckles contracts 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 with 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 convex column is provided at the bottom of the pump body, 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, 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; and 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 is matched with the inner wall of the pump chamber in a single line, which effectively reduces the friction between the piston and the pump chamber, making it easier and more labor-saving for users to press, which is conducive to improving the pressing feel and enhancing the user experience. In addition to being applied to perfume bottles, the perfume atomizer pump of the present invention can also be applied to other products that need to be atomized and sprayed, 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 accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0047] Figure 1 It is a cross-sectional schematic diagram of the convex column in the perfume atomizer pump of the present invention when it is arranged to extend downward.

[0048] Figure 2 It 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] Figure 3 for Figure 2 Schematic diagram of the middle spray cover pressing down process.

[0050] Figure 4 for Figure 3 Schematic diagram of the lower middle pump rod being separated and opened from the piston body.

[0051] Figure 5 The figure is a three-dimensional schematic diagram of the lower pump rod in the perfume atomizing pump of the present invention.

[0052] Figure 6 for Figure 5 Schematic cross-section diagram of .

[0053] Figure 7 The figure is a three-dimensional schematic diagram of the upper pump rod in the perfume atomizer pump of the present invention.

[0054] Figure 8 for Figure 7 Schematic cross-section diagram of .

[0055] Fig. 9 It is a cross-sectional schematic diagram after the upper pump rod and the lower pump rod are assembled.

[0056] Fig.10 This is a top view of the upper pump rod and the lower pump rod of the present invention after being assembled.

[0057] Fig.11 It is a cross-sectional view of the perfume atomizer pump of the present invention when a convex ring and a concave position are respectively provided on the upper pump rod and the lower pump rod.

[0058] Fig.12 for Fig.11 Another angle sectional view of .

[0059] Fig.13 for Fig.11 A three-dimensional view of the lower pump rod in FIG.

[0060] in:

[0061] 1- pump body, 1001- pump chamber, 1002- clamping ring, 1003- positioning rib;

[0062] 2- convex column;

[0063] 3-limiting cavity, 31-liquid inlet, 32-liquid delivery channel, 33-connecting channel, 34-elastic buckle;

[0064] 4- Seals;

[0065] 5-lower pump rod, 51-lower pump rod pump body, 52-annular end, 53-annular groove, 54-delivery channel, 55-missing surface, 56-external buckling portion, 561-cylindrical portion, 562-cone guide portion, 563-buckle platform, 57-liquid introduction groove, 58-support platform, 59-positioning platform, 510-convex ring;

[0066] 6-upper pump rod, 61-upper pump rod body, 62-inner buckle joint, 621-inner boss, 622-introduction cone, 63-conduction slot, 64-positioning convex part, 65-limiting convex part, 66-concave part;

[0067] 7-piston, 71-center tube, 72-inner convex ring, 73-connecting platform, 74-piston body, 75-sleeve, 76-abutment part, 77-anti-slip part, 78-accommodation space;

[0068] 8- Upper spring;

[0069] 9-Lower spring;

[0070] 10-free grabbing port, 101-first horizontal portion, 102-clamping groove, 103-connecting ring, 104-bayonet arc-shaped connecting portion, 105-second horizontal portion, 106-first vertical portion, 107-positioning snap ring;

[0071] 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;

[0072] 12-spray cover, 121-cover body, 122-flow guide channel, 123-connecting seat, 124-spray channel, 125-center rod, 126-mist point;

[0073] 13-aluminum cover;

[0074] 14- Sealing gasket;

[0075] 15-Liquid inlet pipe. DETAILED DESCRIPTION

[0076] In order 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, and the embodiments described are only a 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 ordinary technicians in the art without making creative work are within the scope of protection of the present invention.

[0077] 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.

[0078] Example 1

[0079] See also Figure 1-Figure 10 The present embodiment discloses 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, a grip-free clamping port 10, an outer cover 11, and a spray cover 12. The spray cover 12 is provided with a mist 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 cover 12, and a connecting seat 123 is provided on the side of the spray cover 12 facing downward, and the upper end of the upper pump rod 6 is inserted into the plug-in slot of the connecting seat 123 to achieve fixation. The spray cover 12 of the present embodiment is covered with an aluminum cover 13.

[0080] See also Figure 1-Figure 4The piston 7 of this embodiment includes a sleeve 75 and a piston body 74 for matching 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 outside the upper pump rod 6; the piston body 74 is provided with a radially outwardly enlarged abutment portion 76, and the abutment portion 76 is in dynamic sealing contact with the inner wall of the pump chamber 1001 to form a single linear matching 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, there is only one sealing abutment portion between the piston 7 of this embodiment and the inner wall of the pump chamber 1001, namely, the abutment portion 76 of this embodiment, so that the user can save more effort and have a better hand feel when performing a pressing operation. At the same time, the abutment portion 76 of the present embodiment expands radially outward, and forms an outwardly expanding tension after cooperating with the pump chamber 1001, which can effectively ensure the sealing effect between the two.

[0081] Furthermore, the lower pump rod 5 is inserted into the upper pump rod 6, and the upper pump rod 6 and the lower pump rod 5 are interlocked to form a pump rod group that can move synchronously. The piston 7 is sleeved outside the upper pump rod 6 and the lower pump rod 5, and can move downward as the upper pump rod 6 is pressed downward. In addition, the elastic member is used to reset the upper pump rod 6, the lower pump rod 5, the piston 7 and the spray cover 12 upward after being pressed downward, so that the user can repeatedly press the spray cover 12 to spray the mist liquid multiple times.

[0082] The elastic member includes an upper spring 8 and a lower spring 9. The upper spring 8 is arranged between the upper pump rod 6 and the piston 7; the lower spring 9 is arranged between the lower end of the lower pump rod 5 and the pump chamber 1001. The use of two springs can improve the upward reset speed of the upper pump rod 6 and the lower pump rod 5 and the stability during reset, so as to achieve the purpose of fast, accurate and stable reset, thereby making the spraying amount of the mist liquid more stable and uniform.

[0083] See also Figure 5-Figure 9 , further, the lower pump rod 5 includes a cylindrical lower pump rod body 51 and an annular end 52. The annular end 52 is connected to the lower end of the lower pump rod body 51, and an annular groove 53 is provided on the upper surface of the annular end 52. A support platform 58 is provided on the inner side of the annular groove 53, and a liquid inlet groove 57 connected to the annular groove 53 is provided on the support platform 58. A notch 55 is provided on the outer wall of the lower pump rod body 51, and the notch 55 is connected to the liquid inlet groove 57. Further, the notch 55 and the liquid inlet groove 57 of this embodiment can be set in one group or two groups or other numbers. In order to maintain the balance of infusion and the stability of the spray amount, this embodiment adopts two groups, and they are symmetrically arranged.

[0084] The upper pump rod 6 includes an upper pump rod body 61 and a positioning protrusion 64. The positioning protrusion 64 is radially protruding outwardly and is arranged on the outer wall of the upper pump rod body 61, and the upper pump rod body 61 is hollow. The lower pump rod body 51 is inserted into the inner cavity of the upper pump rod body 61, and the lower end of the upper pump rod body 61 is supported on the support platform 58, and the support platform 58 is located in 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 conveying channel 54.

[0085] See also Figure 1-Figure 4 The piston 7 further comprises a central tube 71, which is arranged radially inwardly of the sleeve 75, so that the upper end of the central tube 71 is staggered with the sleeve 75 to form a connecting platform 73, which is provided for the upper spring 8 to support, and the lower end of the central tube 71 is matched and embedded in the annular groove 53 of the annular end 52, and can seal the liquid guide groove 57 on the annular end 52 in a non-pressed state. The outer wall of the central tube 71 is provided with an inner convex ring 72 protruding radially inwardly, and the inner convex ring 72 is pressed against the outer wall of the upper pump rod body 61 to form a dynamic seal. In addition, an annular accommodation space 78 is formed between the sleeve 75 and the outer wall of the upper pump rod 6.

[0086] The upper spring 8 is sleeved outside 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 outwardly 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. The gap is used to allow the upper pump rod 6 and the lower pump rod 5 to have a certain downward pressure distance when the piston 7 cannot continue to move downward, so as to separate the piston body 74 from the annular end 52 and allow the liquid to be sprayed out smoothly.

[0087] 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, a positioning platform 59 is provided at the bottom of the annular terminal 52, and the lower spring 9 can be sleeved outside the positioning platform 59.

[0088] See also Figure 1-Figure 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 on the internal buckling portion 62.

[0089] Specifically, the outer buckle part 56 of this embodiment includes a cylindrical part 561 arranged at the upper end of the lower pump rod body 51 and a frustum guide part 562 connected to the upper end of the cylindrical part 561. The outer diameter of the cylindrical part 561 is smaller than the outer diameter of the lower pump rod body 51, and a buckle platform 563 is formed between the lower end surface of the frustum guide part 562 and the upper end surface of the cylindrical part 561. The inner buckle part 62 includes an inner boss 621, a center hole corresponding to the outer diameter of the cylindrical part 561 is provided at the center of the inner boss 621, and an introduction cone 622 is provided on the inner wall of the lower pump rod body 51 at the lower end of the inner boss 621. The upper pump rod 6 and the lower pump rod 5 cooperate with each other through the outer buckle part 56 and the inner buckle part 62, so that the pull-off force between the upper pump rod 6 and the lower pump rod 5 is greater, which effectively prevents the accident of the upper pump rod 6 and the lower pump rod 5 being separated by mistake during use, and greatly improves the overall use quality 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.

[0090] At the same time, in order to ensure that the liquid or gas can pass through the upper pump rod 6 and the lower pump rod 5 smoothly, a conducting notch 63 is provided on the inner buckle 62 along the axial direction of the upper pump rod 6, and the conducting notch 63 connects the delivery channel 54 with the opening at the upper end of the upper pump rod body 61. The spray cover 12 of this embodiment includes a cover body 121, and a guide channel 122 is provided on the cover body 121. The upper end of the connecting seat 123 is connected to the guide channel 122, so that the upper end opening of the upper pump rod 6 is connected to the guide channel 122. The guide channel 122 is connected to the liquid spray channel 124, and a center rod 125 is provided in the liquid spray channel 124. The mist point 126 is set at the outer end of the center 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.

[0091] The aluminum cover 13 of this embodiment is sleeved 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 .

[0092] See also Figure 1-Figure 4The 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 clamped in 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-in 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, the assembly is more convenient and quick, and the product as a whole can also be more beautiful.

[0093] 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.

[0094] Further, the bayonet seat 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, and 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 against the upper end of the connecting ring 103. The outer cover arc-shaped connecting portion 113 is formed between the second vertical portion 112 and the fourth horizontal portion 114, and the bayonet arc-shaped connecting portion 104 is formed between the first vertical portion 106 and the second horizontal portion 105 of the bayonet seat, and the outer cover arc-shaped connecting portion 113 presses on the bayonet arc-shaped connecting portion 104. The clamping groove 102 of this embodiment is arranged on the inner wall of the first vertical portion 106, and the clamping ring 1002 at the upper end of the pump body 1 is located in the clamping groove 102 and presses on the bottom surface of the first horizontal portion 101. The third vertical portion 115 is provided with a positioning clamping groove 116 near the fourth horizontal portion 114; the outer end of the second horizontal portion 105 is connected to a positioning clamping ring 107; the positioning clamping ring 107 is clamped in the positioning clamping groove 116.

[0095] The snap-fit ​​groove 102 on the grab-free snap-fit ​​port 10 of this embodiment forms a first fit with the snap-fit ​​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-fit ​​to form a third fit, and the positioning snap ring 107 on the second horizontal portion 105 is snap-fitted into the positioning snap-fit ​​groove 116 of the third vertical portion 115 to form a fourth fit, thereby clamping and fixing the outer cover 11, the grab-free snap-fit ​​port 10 and the pump body 1 to each other to form a firm assembly relationship.

[0096] 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 at an angle, 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 grip-free snap port 10 to each other.

[0097] The outer wall of the pump body 1 of this embodiment is sleeved 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.

[0098] The pump chamber 1001 of this embodiment is provided with a liquid inlet valve for controlling the liquid to enter the pump chamber 1001. The liquid inlet valve includes a sealing member 4 and a limiting chamber 3. The limiting chamber 3 is communicated with the liquid inlet 31 at the bottom of the pump chamber 1001. The sealing member 4 is located in 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 limiting the sealing member 4 from escaping from the limiting chamber 3; under the action of pressure, the sealing member 4 can move in the limiting chamber 3 to open the liquid inlet 31. When the air pressure in the pump chamber 1001 is lower than the air pressure in the bottle body, the sealing member 4 will be forced to leave the liquid inlet 31 under the action of pressure, so that the liquid inlet 31 is opened, and the liquid in the bottle body enters the pump chamber 1001; when the air pressure between the pump chamber 1001 and the bottle body is balanced, the sealing member 4 falls and presses on the liquid inlet 31 to reseal the liquid inlet 31.

[0099] Furthermore, the limiting portion of this embodiment includes a plurality of elastic buckles 34, each elastic buckle 34 is distributed along the circumferential direction, and the upper end of each elastic buckle 34 is contracted toward the axis of the pump body 1 to prevent the seal 4 from escaping from the limiting cavity 3. Generally speaking, three elastic buckles 34 can well limit the seal 4 from escaping, but the number of elastic buckles 34 can be flexibly adjusted to limit the seal 4.

[0100] 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.

[0101] A convex column 2 is provided in the pump chamber 1001, and the convex column 2 extends upward in the pump chamber 1001. The limiting cavity 3 and the sealing member 4 are both provided on the convex column 2. The convex column 2 is provided with a liquid delivery channel 32 which is connected with the limiting cavity 3 and is located below the limiting cavity 3. The lower end opening of the limiting cavity 3 forms a liquid inlet 31. By providing the convex column 2 extending upward in the pump chamber 1001, the distance between the liquid and the annular end 52 of the lower pump rod 5 after the liquid flows out of the pump chamber 1001 is effectively reduced, so that the liquid can enter the delivery channel 54 and be ejected faster and more conveniently through the liquid introduction groove 57 on the annular end 52, which greatly improves the pumping efficiency.

[0102] The convex column 2 is provided with a connecting channel 33, the upper end of the connecting channel 33 is connected to the liquid delivery channel 32, and the lower end of the connecting channel 33 is connected to the outside of the pump body 1; the connecting channel 33 is assembled with a liquid inlet pipe 15. The setting of the liquid inlet pipe 15 can better pump the liquid in the bottle body, and the liquid inlet pipe 15 can extend into the bottom of the bottle body, and the setting of the connecting channel 33 facilitates the assembly connection between the liquid inlet pipe 15 and the pump body 1.

[0103] The pump chamber 1001 of this embodiment is provided with a plurality of positioning ribs 1003 at the bottom thereof, and the plurality of positioning ribs 1003 are spaced apart along the inner wall of the pump chamber 1001. The liquid inlet valve is located in the area surrounded by the positioning ribs 1003. The provision of the positioning ribs 1003 can limit the piston 7 and limit the lowest point of the piston 7 when it moves. At the same time, the positioning ribs 1003 can also increase the rigidity of the pump body 1. In addition, 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 sleeved outside the boss 2 and is located inside the positioning ribs 1003.

[0104] See also Figure 1-Figure 10The working principle of the perfume atomizer pump of this embodiment is as follows: in the initial state, the sealing member 4 closes the liquid inlet 31. Under the action of the upper spring 8 and the lower spring 9, the spray cover 12, the upper pump rod 6, the lower pump rod 5 and the piston 7 are all at the highest position. And under the action of the upper spring 8 and the lower spring 9, the lower end of the central tube 71 of the piston 7 and the annular groove 53 of the annular end 52 are sealed with each other, thereby effectively closing the liquid guide groove 57 to prevent liquid leakage. When the spray cover 12 is subjected to a downward external force, the spray cover 12 drives the upper pump rod 6 and the lower pump rod 5 to move downward. At the same time, under the action of the upper spring 8, the piston 7 moves downward synchronously with the upper pump rod 6 and the lower pump rod 5. When the piston body 74 of the piston 7 presses on the upper end of the positioning rib 1003, the piston 7 stops moving downward. At this time, the upper spring 8 is compressed, and the upper pump rod 6 and the lower pump rod 5 continue to move downward until the limiting convex portion 65 on the upper pump rod 6 is stopped by the upper end of the sleeve 75 of the piston 7. While the upper pump rod 6 and the lower pump rod 5 move downward 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 opens. 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.

[0105] When the spray cap 12 loses the 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 to the initial state position synchronously, at which time the anti-slip portion 77 of the piston 7 is held to a limit position by the connecting ring 103 of the non-grabbing clamp 10. During the rapid reset process, 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 the 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 is balanced, the seal 4 lands at the liquid inlet 31 again and seals.

[0106] 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 to cause 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.

[0107] Example 2

[0108] The difference between this embodiment and embodiment 2 is that:

[0109] See also Figure 1In this embodiment, a downwardly extending convex column 2 is provided at the bottom of the pump body 1, and the limiting cavity 3 and the sealing member 4 are both arranged on the convex column 2. The convex column 2 is provided with a liquid delivery channel 32 which is connected with the limiting cavity 3 and is located below the limiting cavity 3. The lower end opening of the limiting cavity 3 forms a liquid inlet 31. In this embodiment, the inner wall of the limiting cavity 3 is set to be conical, so that the spherical sealing member 4 can more fully contact the inner wall of the limiting cavity 3, so as to seal the liquid inlet 31.

[0110] Example 3

[0111] The difference between this embodiment and embodiment 1 is that:

[0112] See also Figure 11-13 In this embodiment, a convex ring 510 is provided on the outer wall of the lower pump rod body 51 and below the outer buckle 56. A concave position 66 is provided at the matching position between the inner wall of the upper pump rod 6 and the convex ring 510. The convex ring 510 is adapted to the concave position 66. When the upper pump rod body 61 and the lower pump rod body 51 are assembled, the convex ring 510 is embedded in the concave position 66 to form a secure buckle fixation, further improving the buckle ability between the upper pump rod 6 and the lower pump rod 5, and the pull-off force of the two is improved, which can better prevent the upper pump rod 6 and the lower pump rod 5 from loosening.

[0113] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from 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 atomizer 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 cover; The spray cover is provided with a mist point; The pump body is provided with a pump chamber; The upper end of the upper pump rod is connected to the spray cover; 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; 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; The elastic member is used for returning the upper pump rod, the lower pump rod, the piston and the spray cover to an upward position after being pressed downward.

2. The perfume atomizer pump according to claim 1, characterized in that: 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; the piston body is provided with an abutment portion that expands radially outward, and the abutment portion is in dynamic sealing contact with the inner wall of the pump chamber.

3. The perfume atomizer pump according to claim 2, characterized in that: The elastic member comprises an upper spring and a lower spring; The upper spring is arranged between the upper pump rod and the piston; The lower spring is disposed between the lower end of the lower pump rod and the pump chamber.

4. The perfume atomizer pump according to claim 3, characterized in that: The upper pump rod includes an upper pump rod body and a positioning protrusion, wherein the positioning protrusion protrudes radially outward on the outer wall of the upper pump rod body; the piston also includes a center tube, which 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.

5. The perfume atomizer pump according to claim 4, characterized in that: The inner wall of the central tube is provided with an inner convex ring protruding radially inwards, and the inner convex ring is pressed against the outer wall of the upper pump rod to form a dynamic seal.

6. The perfume atomizer pump according to claim 4, characterized in that: The positioning protrusion is provided with a limiting protrusion protruding radially outward, and the limiting protrusion corresponds to the top of the sleeve.

7. The perfume atomizer pump according to claim 4, characterized in that: The lower pump rod comprises 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.

8. The perfume atomizer pump according to claim 7, characterized in that: The annular end is provided with an annular groove, a support platform is formed on the inner side of the annular groove, and a liquid inlet groove connected to the annular groove is provided on the support platform; a conveying channel connected to the mist point is provided between the lower pump rod and the upper pump rod, and the liquid inlet groove is connected to the conveying channel; 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.

9. The perfume atomizer pump according to claim 8, characterized in that: The outer wall of the lower pump rod body is provided with a notch, and the notch is butted against the liquid guide groove; the space between the notch and the inner wall of the upper pump rod forms the delivery channel; The lower end of the upper pump rod is located on the support platform.

10. The perfume atomizer pump according to claim 9, characterized in that: An opening is provided at the upper end of the upper pump rod, and the opening is communicated with the delivery channel; 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 center rod is provided in the liquid spray channel, and the mist point is arranged on the center rod.

11. The perfume atomizer pump according to claim 10, characterized in that: An external snap-fit ​​portion is provided at the upper end of the lower pump rod body, and an internal snap-fit ​​portion is provided in the inner cavity of the upper pump rod body. The external snap-fit ​​portion is snapped onto the internal snap-fit ​​portion, and the internal snap-fit ​​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.

12. The perfume atomizer pump according to claim 11, characterized in that: The outer buckle portion includes a cylindrical portion and a frustum guide portion arranged 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; The inner buckle connection portion comprises an inner boss, a center hole equivalent 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.

13. The perfume atomizer pump according to claim 12, characterized in that: The outer wall of the lower pump rod body is provided with a convex ring; the inner wall of the upper pump rod body is provided with a concave position; the convex ring is adapted to the concave position.

14. The perfume atomizer pump according to any one of claims 1 to 13, characterized in that: The upper end of the pump body is provided with a grip-free clamping port for preventing the piston from being separated, and the grip-free clamping port is covered with an outer cover.

15. The perfume atomizer pump according to claim 14, characterized in that: The outer wall of the upper end of the pump body is provided with a clamping ring; The grab-free bayonet includes a bayonet seat and a connecting ring; a bayonet seat is provided with a bayonet groove, and the bayonet ring is clamped in the bayonet 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.

16. The perfume atomizer pump according to claim 15, 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, 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 sequentially connected from top to bottom, and the third horizontal portion extends inward to the connecting ring and abuts 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.

17. The perfume atomizer pump according to claim 16, characterized in that: The third vertical portion is provided with a positioning slot near the fourth horizontal portion; the outer end of the second horizontal portion is connected with a positioning snap ring; and the positioning snap ring is snapped in the positioning slot.

18. The perfume atomizer pump according to claim 17, characterized in that: The outer wall of the pump body is sleeved with a sealing gasket, and the outer wall of the sealing gasket is clamped on the inner wall of the positioning clamp ring.

19. The perfume atomizer pump according to claim 1, characterized in that: The lower end of the pump body is provided with a liquid inlet; 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.

20. The perfume atomizer pump according to claim 19, characterized in that: The limiting portion includes a plurality of elastic buckles, each of which is distributed along a circumferential direction, and an upper end of each of which contracts toward the axis of the pump body to prevent the sealing member from being separated from the limiting cavity.

21. The perfume atomizer pump according to claim 20, characterized in that: 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 with the limiting cavity and is located below the limiting cavity. The lower end opening of the limiting cavity forms the liquid inlet.

22. The perfume atomizer pump according to claim 20, characterized in that: A downwardly extending convex column is provided at the bottom of the pump body, 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 with the limiting cavity and is located below the limiting cavity, and the lower end opening of the limiting cavity forms the liquid inlet.

23. The perfume atomizer pump according to claim 21 or 22, characterized in that: The convex column is provided with a connecting channel, 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.

24. The perfume atomizer pump according to claim 19, characterized in that: The sealing element is spherical.

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