Counter pump head and cosmetic bottle liquid pump

Abstract

The counter pump head comprises a shell, a bottom cover, a dial, a cam groove and a cam, a clamping groove and an extrusion block are arranged on the inner wall of the shell, and an observation window is arranged on the shell; a bulge is arranged on the outer wall of the bottom cover, is arranged in the shell and is clamped into the clamping groove; the dial is arranged in the shell and arranged on the bottom cover in a sleeving mode, and a plurality of spaced protruding parts are annularly arranged on the top of the dial in the circumferential direction. The cam groove comprises an upper groove cover and a lower groove cover, a plurality of upper protruding teeth are annularly arranged on the upper section of the inner circumferential wall of the upper groove cover, every two adjacent upper protruding teeth form an upper sliding groove, a plurality of protruding tooth grooves are annularly formed in the lower section of the inner circumferential wall of the upper groove cover, and each protruding tooth groove corresponds to one upper sliding groove. The groove lower cover comprises a cover body and is arranged on the bottom cover, a shifting piece is arranged on the outer wall, and the top of the shifting piece is inclined; a plurality of lower convex teeth are annularly arranged on the inner wall of the cover body; the groove upper cover and the groove lower cover are connected in a clamping mode, each lower protruding tooth is clamped into one protruding tooth groove, the poking piece rotates to meet the extrusion block, the extrusion block presses the poking piece downwards, and the bottom of the poking piece stretches into the position between the two protruding parts.

Description

Technical Field

[0001] This utility model relates to the field of cosmetics, specifically to a counter pump head and a cosmetic bottle liquid pump. Background Technology

[0002] The pump head is used to connect to the pump cartridge. After pressing the pump head, a fixed amount of liquid is drawn from the container through the pump cartridge. Currently, conventional pump heads on the market generally do not have a structure to record the number of presses. Users cannot know the number of presses and therefore cannot know the volume of liquid in the container.

[0003] While some improved pump heads have attempted to integrate electronic counters in existing technologies, these solutions suffer from issues such as increased structural complexity, soaring costs, reliance on battery power, and insufficient waterproofing, making them unsuitable for the low-cost requirements of pump heads. Furthermore, mechanical counting modules occupy a large space, leading to an increase in the overall size of the pump head. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a counter pump head and a cosmetic bottle liquid pump.

[0005] The objective of this utility model is achieved through the following solution:

[0006] A counter pump head, comprising:

[0007] The outer shell has a snap-fit ​​groove and a pressing block on its inner wall, and an observation window on its surface;

[0008] The bottom cover has a protrusion on its outer wall. The bottom cover is located inside the outer shell, and the protrusion is engaged in the snap-fit ​​groove.

[0009] The dial is located inside the outer casing and fitted onto the bottom cover. The outer surface of the dial is circumferentially marked with multiple graduations, and the top is circumferentially marked with multiple spaced protrusions. The observation window corresponds to the graduations.

[0010] A cam groove, located within a housing, includes an upper groove cover and a lower groove cover. The upper section of the inner circumferential wall of the upper groove cover has multiple upper protrusions, with an upper sliding groove formed between adjacent upper protrusions. The lower section of the inner circumferential wall of the upper groove cover has multiple protrusion grooves, each corresponding to an upper sliding groove. The lower groove cover includes a cover body fitted onto a bottom cover. The outer wall of the cover body has a lever, with inclined surfaces at both the top and bottom. The upper circumferential wall of the cover body has multiple lower protrusions. The upper and lower groove covers engage, with each lower protrusion engaging a protrusion groove. The side of each lower protrusion facing the upper sliding groove is inclined, and a lower sliding groove is formed between adjacent protrusion grooves. The lever is located outside the upper groove cover and above the protrusions. When the lever rotates to meet the pressing block, the pressing block slides along the inclined surface at the top of the lever and presses down on the lever. The inclined surface at the bottom of the lever extends between adjacent protrusions.

[0011] The cam has a snap-fit ​​position along the axial direction. One end of the cam is located in the upper cover of the groove, and the other end of the cam is located outside the outer shell. The outer wall of the end of the cam located in the upper cover of the groove is provided with multiple limiting members, and each limiting member is correspondingly located in an upper sliding groove.

[0012] In one embodiment, a locking component is also provided on the outer wall of the bottom cover, and multiple limiting grooves are provided on the side of the dial facing away from the observation window. Each limiting groove corresponds to a scale, and the locking component is engaged with a limiting groove.

[0013] A cosmetic bottle liquid pump includes the aforementioned counter pump head, as well as a water outlet and a pump core assembly. One end of the water outlet is disposed in a snap-fit ​​position of a cam, and one end of the pump core assembly extends into the cam. The end of the water outlet extending into the snap-fit ​​position is connected to the end of the pump core assembly extending into the cam.

[0014] In one embodiment, the water outlet has a water outlet and a conduit. The water outlet is connected to the conduit. The outer wall of the conduit is provided with multiple snap-fit ​​parts along the circumferential direction. The snap-fit ​​position is provided with multiple snap-fit ​​grooves along the circumferential direction. The number of snap-fit ​​grooves is greater than the number of snap-fit ​​parts. The conduit extends into the snap-fit ​​position, and each snap-fit ​​part snaps into one snap-fit ​​groove. One end of the pump core assembly that extends into the cam is connected to the conduit.

[0015] In one embodiment, the pump core assembly includes a pump core and a suction tube. The pump core includes a housing, a piston portion, and a pressing portion. The housing, piston portion, and pressing portion are all hollow structures. A piston chamber is provided inside the housing. One end of the piston portion extends into the piston chamber, and the other end of the piston portion is outside the housing. The pressing portion is sleeved outside the piston portion. One end of the pressing portion is located inside the housing, and the other end of the pressing portion extends into the cam and is connected to the water outlet.

[0016] In one embodiment, the piston portion includes a connecting rod and a piston. One end of the connecting rod extends into the pressing portion and is connected to the pressing portion. The other end of the connecting rod extends out of the pressing portion and into the piston chamber. The piston is disposed in the piston chamber and located outside the pressing portion. The end of the connecting rod extending into the piston chamber is connected to the piston.

[0017] In one embodiment, the connecting rod includes a rod body and a limiting seat. One end of the rod body extends into and connects to the pressing part, while the other end of the rod body extends out of the pressing part and passes through the piston. The limiting seat is located inside the piston cavity and outside the pressing part. The limiting seat is connected to the end of the rod body that passes through the piston. The outer diameter of the limiting seat is smaller than the inner diameter of the piston, and the piston is movably mounted on the limiting seat. Both the rod body and the limiting seat are provided with interconnected flow channels. The flow channels are connected to the inside of the pressing part, and the piston can slide inside the piston cavity. When the piston slides to the bottom of the limiting seat, it can close the flow channels.

[0018] In one embodiment, the pressing part includes a pressing sleeve, a spring, and a limiting seal. The limiting seal extends into the housing and rests on the housing at its top. One end of the limiting seal extends into the housing to limit the piston part. One end of the pressing sleeve extends into the limiting seal, and the other end is connected to the suction tube. The spring is sleeved outside the pressing sleeve and is located between the top of the pressing sleeve and the top of the limiting seal.

[0019] In one embodiment, the pump core further includes a one-way plug disposed at the bottom of the piston chamber.

[0020] In one embodiment, a limiting ring is also included. The limiting ring is disposed on the pump core assembly, and the inner wall of the bottom cover is provided with an internal thread. The limiting ring is screwed into the internal thread.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] This invention uses a pressing cam to cause a limiting member on the cam to move between the upper and lower sliding grooves, thereby pushing the lower cover of the groove to rotate. A lever connected to the lower cover also rotates. Since the top and bottom of the lever have inclined surfaces, when the lever rotates to meet the pressing block, the pressing block slides along the inclined surface at the top of the lever and presses down on the lever. The inclined surface at the bottom of the lever extends between two adjacent protrusions on the dial, thereby actuating the dial. The dial rotates and displays the scale in the observation window, allowing the user to see the scale on the dial and thus achieve the purpose of counting. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is a perspective view of the counter pump head in Example 1;

[0025] Figure 2 for Figure 1 Cross-sectional view of the counter pump head;

[0026] Figure 3 for Figure 1 Exploded view of the pump head of the counter;

[0027] Figure 4 for Figure 3 The motion path diagram of the middle limiting component in the upper and lower covers of the cam groove;

[0028] Figure 5 for Figure 3 The motion path diagram of the other limiting component in the upper and lower covers of the cam groove;

[0029] Figure 6 for Figure 1 A schematic diagram of another three-dimensional structure inside the counter pump head after removing the outer casing;

[0030] Figure 7 This is a schematic cross-sectional view of the cosmetic bottle liquid pump in Example 2;

[0031] Figure 8 This is a top view of the water outlet in Example 2;

[0032] Figure 9 This is a cross-sectional view of the pump core assembly in Example 2;

[0033] Figure 10 In Example 2 Figure 7 Enlarged view of point A;

[0034] In the attached drawings, the reference numerals are: 1. outer shell; 11. snap-fit ​​groove; 12. compression block; 13. observation window;

[0035] 2. Bottom cover; 21. Protrusion; 22. Locking element; 23. Internal thread;

[0036] 3. Dial; 31. Raised portion; 32. Limiting groove;

[0037] 4. Cam groove; 41. Groove cover; 411. Upper tooth; 4111. Upper sliding groove; 4112. Tooth groove; 41121. Lower sliding groove;

[0038] 42. Lower cover of the groove; 421. Cover body; 4211. Paddle; 42111. Inclined surface; 4212. Lower protruding tooth;

[0039] 5. Cam; 51. Snap-fit ​​position; 511. Snap-fit ​​groove; 52. Limiting element;

[0040] 6. Water spout; 61. Water outlet; 62. Guide tube; 621. Snap-fit ​​part;

[0041] 7. Pump core assembly; 71. Pump core; 711. Housing; 7111. Piston chamber; 712. Piston section; 7121. Connecting rod; 71211. Rod body; 712111. Flow guide channel; 71212. Limiting seat; 7122. Piston; 713. Pressing part; 7131. Pressing sleeve; 7132. Spring; 714. Limiting seal; 715. One-way plug;

[0042] 72. Straw;

[0043] 8. Limiting ring. Detailed Implementation

[0044] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0045] It should be noted that all directional indicators in this utility model embodiment, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.

[0046] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0047] To further understand the utility model's content, features, and effects, the following embodiments are provided, along with detailed descriptions in conjunction with the accompanying drawings:

[0048] Example 1

[0049] like Figure 1-5 As shown, Figure 1 This is a three-dimensional structural diagram of the counter pump head in this embodiment. Figure 2 This is a cross-sectional view of the counter pump head. Figure 3 This is a schematic diagram of the exploded structure of the counter pump head. Figure 4 This is a diagram showing the movement path of the limiting component in the upper and lower covers of the slot. Figure 5This utility model provides a counter pump head, including a housing 1, a bottom cover 2, a dial 3, a cam groove 4, and a cam 5, to illustrate the movement path of another limiting component in the upper and lower covers of the groove. The inner wall of the housing 1 is provided with a snap-fit ​​groove 11 and a pressing block 12, and the housing 1 is also provided with an observation window 13. The outer wall of the bottom cover 2 is provided with a protrusion 21, and the bottom cover 2 is located inside the housing 1, with the protrusion 21 snapping into the snap-fit ​​groove 11. The dial 3 is located inside the housing 1 and is fitted onto the bottom cover 2. The outer surface of the dial 3 is provided with multiple graduations, and the top is provided with multiple spaced protrusions 31 along the circumferential direction. The observation window 13 corresponds to the graduations. The cam groove 4 is located inside the outer casing 1 and includes an upper groove cover 41 and a lower groove cover 42. The upper section of the inner peripheral wall of the upper groove cover 41 is provided with multiple upper protrusions 411, and an upper sliding groove 4111 is formed between two adjacent upper protrusions 411. The lower section of the inner peripheral wall of the upper groove cover 41 is provided with multiple protrusion grooves 4112, and each protrusion groove 4112 corresponds to an upper sliding groove 4111. The lower groove cover 42 includes a cover body 421, which is fitted onto the bottom cover 2. The outer wall of the cover body 421 is provided with a lever 4211, and the top and bottom of the lever 4211 are provided with inclined surfaces 42111. The upper section of the inner wall of the cover body 421 is provided with multiple lower protrusions 421. 2; The upper cover 41 and the lower cover 42 of the slot are engaged, each lower tooth 4212 is engaged in a tooth groove 4112, the side of each lower tooth 4212 facing the upper sliding groove 4111 is an inclined surface, and a lower sliding groove 41121 is also formed between two adjacent tooth grooves 4112. The paddle 4211 is located outside the upper cover 41 of the slot and above the protrusion 31. When the paddle 4211 rotates to meet the pressing block 12, the pressing block 12 slides along the inclined surface 42111 at the top of the paddle 4211 and presses down the paddle 4211. The inclined surface 42111 at the bottom of the paddle 4211 extends into the space between two adjacent protrusions 31. The cam 5 has a snap-fit ​​position 51 along the axial direction. One end of the cam 5 is located in the groove cover 41, and the other end of the cam 5 is located outside the outer shell 1. The outer wall of the end of the cam 5 located in the groove cover 41 is provided with multiple limiting members 52, and each limiting member 52 is correspondingly located in an upper sliding groove 4111.

[0050] When the cam 5 is pressed, the limiting member 52 moves in the upper slide groove 4111 and moves along the inclined surface 42111 of the lower protrusion 4212 corresponding to the upper slide groove 4111 to the lower slide groove 41121. When the limiting member 52 moves along the inclined surface 42111, it drives the lower cover 42 and the upper cover 41 of the groove to rotate. When the paddle 4211 rotates to the position corresponding to the pressing block 12, the pressing block 12 presses the paddle 4211, so that the paddle 4211 extends into the space between the adjacent protrusions 31, thereby driving the dial 3 to rotate, thereby pushing the dial 3 to rotate one scale. The user can observe the scale through the observation window 13 provided on the outer casing 1.

[0051] In this embodiment, there are eight upper protruding teeth 411 provided on the upper cover 41, and eight protruding tooth grooves 4112 are provided on the lower section of the inner peripheral wall of the upper cover 41. There are eight lower protruding teeth 4212 provided on the lower cover 42. When one of the limiting members 52 moves from the upper cover 41 to the lower cover 42, the rotation distance of the lower cover 42 is the width of one lower protruding tooth 4212. When the limiting member 52 completes eight movements from the upper cover 41 to the lower cover 42, that is, the lower cover 42 rotates one revolution.

[0052] When the counter pump head is initially installed, the squeezing block 12 contacts the end of the paddle 4211 that is away from the inclined surface 42111. After the paddle 4211 rotates one revolution, the inclined surface 42111 of the paddle 4211 is facing the squeezing block 12. When the paddle 4211 rotates again, the squeezing block 12 will squeeze the inclined surface 42111 of the paddle 4211 again. The upper cover 41 and the lower cover 42 of the slot will move down and rotate at the same time. The paddle 4211 will extend into the adjacent protrusion 31 as the lower cover 42 of the slot moves down, so that the paddle 4211 presses down and drives the protrusion 31 to rotate, thereby turning the dial 3 to rotate. The user can observe the rotation scale on the dial 3 through the observation window 13. In this embodiment, after the user presses the cam 5 eight times, the limiting member 52 moves eight times between the upper cover 41 and the lower cover 42, pushing the lower cover 42 to rotate one revolution, thereby turning the dial 3. The user can know the number of times the cam 5 has been pressed by the scale of the dial 3.

[0053] Furthermore, such as Figure 6 As shown, Figure 6 This is a schematic diagram of another three-dimensional structure inside the counter pump head after removing the outer casing 1, and a review of... Figure 3 The outer wall of the bottom cover 2 is also provided with a locking component 22. The side of the dial 3 facing away from the observation window 12 is provided with multiple limiting grooves 32. Each limiting groove 32 corresponds to a scale. When the bottom cover 2 is placed inside the outer shell 1, each locking component 22 is engaged with a limiting groove 32.

[0054] To prevent the dial 3 from wobbling on the bottom cover 2, a locking piece 21 is used to engage with the limiting groove 32 to prevent the dial 3 from wobbling. When the lever 4211 presses down to move the protrusion 31, the dial 3 can be rotated. If each limiting groove 32 is equipped with a corresponding locking piece 22, the dial 3 will be locked too tightly, preventing the lever 4211 from moving the dial 3. Therefore, two locking pieces 22 are provided.

[0055] In summary, this utility model, when the cam 5 is pressed, the limiting member 52 moves in the upper sliding groove 4111 and along the inclined surface 42111 of the lower protrusion 4212 corresponding to the upper sliding groove 4111 to the lower sliding groove 41121; when the limiting member 52 moves along the inclined surface 42111, it drives the lower cover 42 and the upper cover 41 of the groove to rotate. When the lever 4211 rotates to the position corresponding to the pressing block 12, the pressing block 12 presses the lever 4211, causing the lever 4211 to extend between the adjacent protrusions 31, thereby driving the dial 3 to rotate. This pushes the dial 3 to rotate one scale, and the user can observe the scale through the observation window 13 provided on the outer casing 1. The dial 3 rotates and displays the scale on the observation window 13, and the user can know the scale on the dial 3 from the observation window 13, thereby achieving the purpose of counting.

[0056] Example 2

[0057] like Figure 7 As shown, Figure 7 This is a cross-sectional view of a cosmetic bottle liquid pump. This embodiment discloses a cosmetic bottle liquid pump, which includes the counter pump head of Embodiment 1, as well as a water outlet 6 and a pump core assembly 7. One end of the water outlet 6 is disposed in the snap-fit ​​position 51 of the cam 5, and one end of the pump core assembly 7 extends into the cam 5 and is connected to the cam 5. The end of the water outlet 6 extending into the snap-fit ​​position 51 is connected to the end of the pump core assembly 7 extending into the cam 5.

[0058] In practice, the other end of the pump core assembly 7 is connected to the container. Since the spout 6 and the pump core assembly 7 are respectively connected to the counter pump head, when the spout 6 is pressed, the counter pump head can draw liquid from the container. The liquid flows through the pump core assembly 7 to the spout 6 and is then sprayed out through the spout 6. After the spout 6 is pressed eight times, the dial 3 on the counter pump head will rotate one mark, allowing the user to know the volume of liquid in the container.

[0059] Furthermore, such as Figure 8 As shown, Figure 8 The top view of the water outlet 6 shows that the water outlet 6 has a water outlet 61 and a conduit 62. The water outlet 61 is connected to the conduit 62. The conduit 62 is provided with multiple snap-fit ​​parts 621, which are arranged circumferentially along the outer wall of the conduit 62. The snap-fit ​​position 51 of the cam 5 is provided with multiple slots 511, which are arranged circumferentially along the inner wall of the snap-fit ​​position 51. The number of slots 511 is greater than the number of snap-fit ​​parts 621. The conduit 62 extends into the snap-fit ​​position 51, and each snap-fit ​​part 621 snaps into one slot 511. The extra slots 511 are left unused. The pump core assembly 7 extends into the cam 5 and is connected to the conduit 62.

[0060] The pump core assembly 7 delivers liquid from the container to the conduit 62, from which the liquid flows to the outlet 61 and is ejected. Simultaneously, the nozzle 6 is mounted on the slot 511 via a snap-fit ​​part 621, preventing it from falling off. Furthermore, since the number of slots 511 is greater than the number of snap-fit ​​parts 621, the snap-fit ​​parts 621 can connect to slots 511 in any direction. When the user installs the nozzle 6 onto the cam 5, the nozzle 6 can rotate at any angle in the horizontal plane for installation, thereby improving installation convenience.

[0061] Furthermore, such as Figure 9 As shown, Figure 9 The diagram shows a cross-sectional view of the pump core assembly 7. The pump core assembly 7 includes a pump core 71 and a suction tube 72. The pump core 71 includes a housing 711, a piston part 712, and a pressing part 713. The housing 711, piston part 712, and pressing part 713 are all hollow structures. A piston chamber 7111 is provided inside the housing 711. One end of the piston part 712 extends into the piston chamber 7111, and the other end of the piston part 712 is outside the housing 711. The pressing part 713 is sleeved on the piston part 712. One end of the pressing part 713 is located inside the housing 711, and the other end of the pressing part 713 extends into the cam 5 and is connected to the water outlet 6.

[0062] In practice, the other end of the straw 72 is connected to the container. Pressing the spout 6 causes the cam 5 to press down, which in turn presses down the pressing part 713, thereby pushing the piston part 712 to move along the length of the piston chamber 7111. When the piston part 712 moves to the bottom of the piston chamber 7111, it expels the air from the piston chamber 7111, making the air pressure in the piston chamber 7111 lower than atmospheric pressure. When the piston part 712 moves in the opposite direction again, the liquid can be drawn into the piston chamber 7111 through the straw 72 by atmospheric pressure. The liquid passes through the piston part 712 and the pressing part 713 to reach the counter pump head, and is sprayed out through the spout 6.

[0063] Furthermore, such as Figure 9 As shown, the piston section 712 includes a connecting rod 7121 and a piston 7122. One end of the connecting rod 7121 extends into and connects to the pressing section 713, while the other end extends out of the pressing section 713 and into the piston chamber 7111. The piston 7122 is located inside the piston chamber 7111 and outside the pressing section 713. The end of the connecting rod 7121 extending into the piston chamber 7111 is connected to the piston 7122. When the pressing section 713 is pressed down, the pressing section 713 drives the connecting rod 7121, thereby causing the piston 7122 to move within the piston chamber 7111.

[0064] Furthermore, such as Figure 9As shown, the connecting rod 7121 includes a rod body 71211 and a limiting seat 71212. One end of the rod body 71211 extends into and connects to the pressing part 713, and the other end of the rod body 71211 extends out of the pressing part 713 and passes through the piston 7122. The limiting seat 71212 is located inside the piston chamber 7111 and outside the pressing part 713. The limiting seat 71212 is connected to the end of the rod body 71211 that passes through the piston 7122. The outer diameter of the limiting seat 71212 is smaller than that of the piston 71212. The piston 7122 has an inner diameter and is movably mounted on the limiting seat 71212. Both the rod 71211 and the limiting seat 71212 are provided with interconnected flow channels 712111. The flow channels 712111 are connected to the inside of the pressing part 713. When force is applied to the piston 7122, the piston 7122 can slide in the piston cavity 7111. When the piston 7122 slides to the bottom of the limiting seat 71212, the flow channels 712111 can be closed.

[0065] When the rod 71211 drives the piston 7122 to the bottom of the piston chamber 7111, the piston 7122, whose outer diameter is larger than the inner diameter of the bottom of the housing 711, stops at the bottom of the housing 711 after it moves in the piston chamber 7111 and reaches the bottom of the piston chamber 7111. At this time, the limiting seat 71212 disengages from the piston 7122 under the action of force and continues to move downward, thereby opening the flow channel 712111. When the rod 71211 moves in the opposite direction, it drives the limiting seat 71212 to move in the opposite direction, thereby drawing liquid from the container. The liquid flows from the suction tube 72 into the piston chamber 7111. The liquid entering the piston chamber 7111 is blocked by the piston 7122, so the liquid flows into the rod 71211 through the flow channel 712111. After the rod 71211 moves in the opposite direction, the limiting seat 71212 will drag the piston 7122 at the bottom of the piston chamber 7111 to move in the opposite direction, and the inner diameter of the piston 7122 is connected to the limiting seat 71212, which at the same time seals the guide channel 712111 to prevent liquid from flowing out. The liquid flows from the rod 71211 to the pressing part 713, and finally flows into the conduit 62 and is sprayed out from the outlet 61.

[0066] Furthermore, such as Figure 9 As shown, the pressing part 713 includes a pressing sleeve 7131, a spring 7132, and a limiting seal 714. The limiting seal 714 extends into the housing 711 and rests on the housing 711 at its top. One end of the limiting seal 714 extending into the housing 711 limits the piston part 712. One end of the pressing sleeve 7131 extends into the limiting seal 714, and the other end is connected to the suction tube 72. The spring 7132 is sleeved on the outside of the pressing sleeve 7131 and is located between the top of the pressing sleeve 7131 and the top of the limiting seal 714.

[0067] The outer diameter of the limiting seal 714 is smaller than the inner diameter of the housing 711, and the inner diameter of the limiting seal 714 is larger than the outer diameter of the pressing part 7143. The piston part 712 and the pressing part 713 are both located inside the limiting seal 714. One end of the limiting seal 714 extends into the housing 711 and is connected to the piston part 712. The other end of the limiting seal 714 is connected to the pressing part 713 and is located outside the housing 711. Thus, the limiting seal 714 can increase the air pressure sealing in the piston chamber 7111.

[0068] Simultaneously, when the pressing sleeve 7131 is pressed down, the spring 7132 is also compressed. The pressing sleeve 7131 pushes the piston part 712 to move within the piston chamber 7111, thereby drawing liquid from the container. As the spring 7132 is compressed, the pressing sleeve 7131 is reset by the spring's rebound.

[0069] Furthermore, such as Figure 9 As shown, the pump core 71 also includes a one-way plug 715, which is disposed at the bottom of the piston chamber 7111. The one-way plug 715 opens when the cosmetic bottle liquid pump draws liquid, allowing the liquid to flow into the piston chamber 7111, and the one-way plug 715 prevents the drawn liquid from leaking out of the piston chamber 7111.

[0070] Furthermore, such as Figure 10 As shown, Figure 10 for Figure 7 Enlarged view of point A, and review. Figure 7 The cosmetic liquid pump also includes a limiting ring 8, which is mounted on the pump core assembly 7. The inner wall of the bottom cover 2 has an internal thread 23, and the limiting ring 8 is screwed into the internal thread 23. The limiting ring 8 can better fix the pump core assembly 7 to the counter pump head.

[0071] In summary, in this embodiment, during actual use, the liquid pump is connected to the cosmetic bottle. Pressing the nozzle 6 draws liquid from the cosmetic bottle through the pump core assembly 7, and the liquid is sprayed out from the nozzle 6. After the user presses the nozzle eight times, the dial 3 rotates one mark, and the user can observe the mark to determine the remaining liquid volume in the cosmetic bottle.

[0072] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A counter pump head, characterized in that, include: The outer shell (1) has a snap-fit ​​groove (11) and a compression block (12) on its inner wall, and an observation window (13) on it. Bottom cover (2), with a protrusion (21) on the outer wall of bottom cover (2), bottom cover (2) is located inside outer shell (1), and protrusion (21) is inserted into snap-fit ​​groove (11); The dial (3) is located inside the outer shell (1) and fitted onto the bottom cover (2). The outer surface of the dial (3) is provided with multiple scales and the top is provided with multiple spaced protrusions (31) along the circumferential direction. The observation window (13) corresponds to the scale. The cam groove (4) is located inside the outer casing (1) and includes an upper groove cover (41) and a lower groove cover (42). The upper section of the inner circumferential wall of the upper groove cover (41) is provided with multiple upper protrusions (411), and an upper sliding groove (4111) is formed between two adjacent upper protrusions (4111). The lower section of the inner circumferential wall of the upper groove cover (41) is provided with multiple tooth grooves (4112), and each tooth groove (4112) corresponds to an upper sliding groove (4111). The lower groove cover (42) includes a cover body (421), which is fitted onto the bottom cover (2). The outer wall of the cover body (421) is provided with a paddle (4211), and the top and bottom of the paddle (4211) are provided with inclined surfaces (42111). The upper circumferential wall of the cover body (421) is provided with multiple lower protrusions (42111). 12); The upper cover (41) and the lower cover (42) of the slot are engaged, each protruding tooth (4212) is engaged in a protruding tooth groove (4112), the side of each protruding tooth (4212) facing the upper sliding groove (4111) is an inclined surface, and a lower sliding groove (41121) is also formed between two adjacent protruding tooth grooves (4112). The paddle (4211) is located outside the upper cover (41) and above the protrusion (31); when the paddle (4211) rotates to meet the pressing block (12), the pressing block (12) slides along the inclined surface (42111) of the top of the paddle (4211) and presses down the paddle (4211), and the inclined surface (42111) of the bottom of the paddle (4211) extends between two adjacent protrusions (31); and The cam (5) has a snap-fit ​​position (51) along the axial direction. One end of the cam (5) is located in the upper cover (41) of the groove, and the other end of the cam (5) is located outside the outer shell (1). The outer wall of the end of the cam (5) located in the upper cover (41) of the groove is provided with multiple limiting members (52), and each limiting member (52) is correspondingly located in an upper sliding groove (4111).

2. The counter pump head according to claim 1, characterized in that, A locking component (22) is also provided on the outer wall of the bottom cover (2). The side of the dial (3) facing away from the observation window (13) is provided with multiple limiting grooves (32). Each limiting groove (32) corresponds to a scale. The locking component (22) is engaged with a limiting groove (32).

3. A cosmetic bottle pump, comprising a counter pump head according to any one of claims 1-2, characterized in that, It also includes a water outlet (6) and a pump core assembly (7). One end of the water outlet (6) is located in the snap-fit ​​position (51) of the cam (5). One end of the pump core assembly (7) extends into the cam (5). The end of the water outlet (6) extending into the snap-fit ​​position (51) is connected to the end of the pump core assembly (7) extending into the cam (5).

4. The cosmetic bottle liquid pump according to claim 3, characterized in that, The water outlet (6) has an outlet (61) and a conduit (62). The outlet (61) is connected to the conduit (62). The outer wall of the conduit (62) is provided with multiple snap-fit ​​parts (621) along the circumferential direction. The snap-fit ​​position (51) is provided with multiple snap-fit ​​grooves (511) along the circumferential direction. The number of snap-fit ​​grooves (511) is greater than the number of snap-fit ​​parts (621). The conduit (62) extends into the snap-fit ​​position (51), and each snap-fit ​​part (621) snaps into one snap-fit ​​groove (511). One end of the pump core assembly (7) extending into the cam (5) is connected to the conduit (62).

5. The cosmetic bottle liquid pump according to claim 3, characterized in that, The pump core assembly (7) includes a pump core (71) and a suction tube (72). The pump core (71) includes a housing (711), a piston part (712), and a pressing part (713). The housing (711), piston part (712), and pressing part (713) are all hollow structures. A piston chamber (7111) is provided inside the housing (711). One end of the piston part (712) extends into the piston chamber (7111), and the other end of the piston part (712) is outside the housing (711). The pressing part (713) is sleeved outside the piston part (712). One end of the pressing part (713) is located inside the housing (711), and the other end of the pressing part (713) extends into the cam (5) and is connected to the water outlet (6).

6. The cosmetic bottle liquid pump according to claim 5, characterized in that, The piston part (712) includes a connecting rod (7121) and a piston (7122). One end of the connecting rod (7121) extends into the pressing part (713) and is connected to the pressing part (713). The other end of the connecting rod (7121) extends out of the pressing part (713) and into the piston chamber (7111). The piston (7122) is located in the piston chamber (7111) and outside the pressing part (713). One end of the connecting rod (7121) extending into the piston chamber (7111) is connected to the piston (7122).

7. The cosmetic bottle liquid pump according to claim 6, characterized in that, The connecting rod (7121) includes a rod body (71211) and a limiting seat (71212). One end of the rod body (71211) extends into the pressing part (713) and connects with it. The other end of the rod body (71211) extends out of the pressing part (713) and passes through the piston (7122). The limiting seat (71212) is located in the piston chamber (7111) and outside the pressing part (713). The limiting seat (71212) is connected to the end of the rod body (71211) that passes through the piston (7122). 12) The outer diameter is smaller than the inner diameter of the piston (7122). The piston (7122) is movably mounted on the limiting seat (71212). The rod (71211) and the limiting seat (71212) are both provided with interconnected flow channels (712111). The flow channels (712111) are connected to the inside of the pressing part (713). The piston (7122) can slide in the piston cavity (7111). When the piston (7122) slides to the bottom of the limiting seat (71212), the flow channels (712111) can be closed.

8. The cosmetic bottle liquid pump according to claim 5, characterized in that, The pressing part (713) includes a pressing sleeve (7131), a spring (7132) and a limiting seal (714). The limiting seal (714) extends into the housing (711) and its top rests on the housing (711). One end of the limiting seal (714) extending into the housing (711) limits the piston part (712). One end of the pressing sleeve (7131) extends into the limiting seal (714), and the other end is connected to the suction tube (72). The spring (7132) is sleeved outside the pressing sleeve (7131) and is located between the top of the pressing sleeve (7131) and the top of the limiting seal (714).

9. The cosmetic bottle liquid pump according to claim 5, characterized in that, The pump core (71) also includes a one-way plug (715), which is located at the bottom of the piston chamber (7111).

10. The cosmetic bottle liquid pump of claim 3, wherein, It also includes a limiting ring (8), which is located on the pump core assembly (7). The inner wall of the bottom cover (2) is provided with an internal thread (23), and the limiting ring (8) is screwed to the internal thread (23).

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