Atomizing pump device

Abstract

The utility model relates to an atomizing pump device, and relates to the technical field of medical instruments, the atomizing pump device comprises a cover body, and a ratchet wheel is arranged on the inner wall of the cover body; the bottle body is connected with the cover body through threads, a pawl is arranged on the outer wall of the bottle body, and the ratchet wheel is meshed with the pawl in a one-way mode to limit one-way rotation of the cover body and the bottle body; the liquid spraying trigger cover is arranged on the cover body in a sleeving manner and is connected with the cover body in a sliding manner; the pump body mechanism is arranged in the liquid spraying trigger cover and the cover body, and the pump body mechanism is used for sucking the medicament in the bottle body and spraying the medicament out; and the protective cover is arranged on the liquid spraying trigger cover in a sleeving manner, and the protective cover and the liquid spraying trigger cover are fixed through a convex-convex structure. The anti-opening effect of the whole device is achieved through one-way meshing of the ratchet wheel and the pawl and fixing of a convex-convex structure of the protective cover, and the assembling process of the whole device is simple, convenient and rapid through the design of threaded connection and sliding.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a spray pump device. Background Art

[0002] A medicinal spray pump is a medical device that sprays the liquid medicine in the container into mist by manually pressing the nozzle. It is used for local spray administration, especially in the treatment of nasal diseases. It can spray the medicine directly into the nasal cavity, which can quickly and effectively restore respiratory function and is crucial to the patient's recovery.

[0003] The design of existing pharmaceutical spray pumps faces many technical challenges, mainly in terms of safety and ease of use. The current product design allows the bottleneck and the cap to be unscrewed at will, which may lead to the following problems: the drug solution leaks or mixes with external substances, and oxidizes or evaporates when exposed to air, which will cause drug contamination and waste. More seriously, this design also increases the risk of accidental ingestion or misuse of the drug, which may cause injury to the user.

[0004] In order to solve these problems, modern medicinal spray pumps need to integrate an anti-opening function; however, it is not easy to implement the anti-opening function, because this requires a more complex product structure, a large number of components and high assembly requirements; the complex product structure not only increases the difficulty of mold manufacturing, but also makes the assembly of semi-finished products complicated, thereby increasing the difficulty and cost of overall product manufacturing; in addition, the complex design may also cause users to encounter difficulties in actual operation, reducing the quality of the user experience.

[0005] Therefore, it is urgent to develop a spray pump that is easy to assemble and can achieve an anti-opening function. Utility Model Content

[0006] In order to develop a spray pump that is easy to assemble and can achieve an anti-opening function, the present application provides a spray pump device.

[0007] The present application provides a spray pump device that adopts the following technical solution:

[0008] A spray pump device, comprising:

[0009] A cover body, wherein the inner wall of the cover body is provided with a ratchet;

[0010] A bottle body, wherein the bottle body and the cover body are connected by threads, a pawl is provided on the outer wall of the bottle body, and the ratchet wheel is unidirectionally meshed with the pawl to limit the unidirectional rotation of the cover body and the bottle body;

[0011] A liquid spray trigger cover, which is sleeved on the cover body and slidably connected to the cover body;

[0012] The pump body mechanism is disposed within the liquid spraying trigger cap and the cap body. The pump body mechanism is used to draw the medicament within the bottle body and spray out the medicament.

[0013] The protective cap is sleeved on the liquid spraying trigger cap. The protective cap and the liquid spraying trigger cap are fixed by a convex-convex structure.

[0014] By adopting the above technical solution, during installation, the pump body mechanism is installed within the cap body, and the liquid spraying trigger cap is sleeved on the cap body, that is, the pump body mechanism is accommodated within the cap body and the liquid spraying trigger cap. Then, the cap body and the bottle body are fixed by threaded connection. During this process, by using the one-way engagement design of the ratchet and the pawl, the one-way rotation of the cap body and the bottle body is restricted, enabling the user to easily and accurately screw the cap body onto the bottle body and achieving the effect of preventing unauthorized opening after installation. Then, the protective cap is sleeved on the liquid spraying trigger cap, and the protective cap and the liquid spraying trigger cap are fixed by the convex-convex structure, achieving the effect of preventing accidental opening; during use, the user opens the protective cap and presses the liquid spraying trigger cap to activate the pump body mechanism by operating the liquid spraying trigger cap. The pump body mechanism draws the medicament within the bottle body and sprays out the medicament, thereby realizing spray administration; the spray pump device of the present application realizes an effective anti-opening function through the one-way engagement of the ratchet and the pawl and the fixing of the convex-convex structure of the protective cap. This design not only protects the medicine from contamination or waste caused by accidental opening but also reduces the risk of the medicine being accessed by unauthorized persons. The designs of threaded connection and sliding connection make the assembly process of the entire spray pump simple and fast, while ensuring high product safety and stability, and can effectively improve the practicability, safety, and user experience of the product.

[0015] In a specific feasible embodiment, the pawl is provided with a stop surface and a guiding arc surface. When the cap body is rotated, the ratchet slides over the guiding arc surface, and the cap body and the bottle body are threadedly connected; when the cap body is rotated in the reverse direction, the stop surface abuts against the ratchet, constituting an anti-reverse rotation connection between the cap body and the bottle body.

[0016] By adopting the above technical solutions, during operation, the rotating cover is used to install or open the spray pump device. The ratchet wheel slides over the guiding arc surface, enabling the cover to be screwed onto the bottle smoothly. At this time, the stop surface does not interfere with the sliding of the ratchet wheel, allowing the cover to rotate normally to complete the connection. When attempting to rotate the cover in the reverse direction, such as attempting to unscrew or operating it incorrectly, at this time, the stop surface will abut against the ratchet wheel. This abutting effect prevents the cover from continuing to rotate in the reverse direction, ensuring that the threaded connection between the cover and the bottle will not loosen or be disengaged accidentally. Through the anti-reverse rotation mechanism of the ratchet wheel and the ratchet pawl, the stop surface can ensure that the cover can only rotate in the designed direction, preventing accidental situations caused by incorrect operations, such as drug leakage or waste. And the design of the guiding arc surface can ensure the smooth movement of the ratchet wheel during forward rotation, thereby making the threaded connection between the cover and the bottle more firm and stable.

[0017] In a specific feasible implementation, the convex-convex structure includes a plurality of convex strips provided on the outer wall of the liquid spraying trigger cover and a convex ring provided on the inner wall of the protective cover. After the protective cover is sleeved on the liquid spraying trigger cover, when the protective cover is pressed down, the convex ring squeezes the plurality of convex strips, so that the convex ring continues to move downward, and the convex ring engages and abuts against the plurality of convex strips, and the protective cover abuts against the liquid spraying trigger cover.

[0018] By adopting the above technical solutions, during installation, the protective cover is sleeved on the liquid spraying trigger cover. When the protective cover is pressed down, the convex ring inside the protective cover will contact the convex strips outside the liquid spraying trigger cover. During the pressing process, the convex ring will squeeze the convex strips, causing the convex ring to continue to move downward. When the convex ring engages and abuts against the convex strips, they will bite or hold each other, thereby fixing the positions of the protective cover and the liquid spraying trigger cover. Through its specific design of convex strips and convex rings, the convex-convex structure effectively realizes the reliable connection and fixation between the protective cover and the liquid spraying trigger cover, not only simplifies the assembly process, but also improves the durability and reliability of the entire device during use.

[0019] In a specific feasible implementation, the liquid spraying trigger cover slides reciprocally along the outer wall of the cover body, and the cover body is provided with a limiting portion, and the outer circumferential diameter of the limiting portion is greater than the inner circumferential diameter of the liquid spraying trigger cover.

[0020] By adopting the above technical solutions, during use, the liquid spraying trigger cover can slide reciprocally along the outer wall of the cover body, thereby realizing the release of the liquid spray. During this process, by utilizing the design of the limiting portion, when the liquid spraying trigger cover slides, the limiting portion restricts the specific sliding path or range of the liquid spraying trigger cover on the cover body, preventing it from exceeding or deviating from the required operation range, and ensuring the reliability and durability of the operation.

[0021] In a specific feasible implementation, the liquid spraying trigger cover is provided with an anti-slip pressing portion.

[0022] By adopting the above technical solution, with the design of the anti-slip pressing part, the liquid spraying trigger cover is more stable when being pressed, reducing the possibility of finger slipping or instability, thereby improving the convenience and comfort during operation, and also enhancing the safety and durability.

[0023] In a specific feasible embodiment, the pump body mechanism includes a liquid spraying component with a spraying port, a pump core component and a pump main body. The liquid spraying component is fixed in the liquid spraying trigger cover and moves synchronously with the liquid spraying trigger cover. The pump main body is arranged in the cover body and is connected to the cover body through a pump base. The pump core component is arranged in the pump main body and is drivingly connected to the liquid spraying component.

[0024] By adopting the above technical solution, during use, when pressing the liquid spraying trigger cover, the liquid spraying trigger cover will drive the liquid spraying component fixed inside it to move synchronously. The liquid spraying component will drive the pump core component to move in the pump main body. Through the movement of the pump core component, the liquid medicine in the bottle body is sucked out and sprayed through the liquid spraying component, realizing spray administration; the synchronous movement of the liquid spraying component and the liquid spraying trigger cover ensures the accuracy and response speed of the operation, and the driving connection of the pump core component ensures the effective transportation of the liquid in the pump main body, thereby realizing liquid spraying.

[0025] In a specific feasible embodiment, the pump core component includes a main column, a sub-column, a piston, a first spring and a second spring. The main column is reciprocally installed in the pump main body and the pump base. The sub-column is fixed inside the main column. One end of the main column is connected to the liquid spraying component to move synchronously with the liquid spraying component. The main column has a protrusion that is in stop cooperation with the pump base; the piston is sleeved on the outer periphery of the main column and is reciprocally installed in the pump main body to form a first liquid suction cavity with variable volume. The two ends of the first spring are respectively abutted against the protrusion and the piston; the sub-column includes a column rod part inserted into the main column and a plunger part fixed at the lower end of the column rod part and located outside the main column. A second liquid suction cavity is provided between the main column and the column rod part. The liquid spraying component is provided with a third liquid suction cavity. The first liquid suction cavity, the second liquid suction cavity, the third liquid suction cavity and the spraying port are sequentially communicated. The two ends of the second spring are respectively abutted against the pump main body and the plunger part.

[0026] By adopting the above technical solution, during use, when the liquid spraying trigger cover is pressed, the liquid spraying trigger cover drives the main column to move downward together, and the auxiliary column moves downward together with the main column. The auxiliary column drives the piston to move downward together through the first spring. The downward movement of the auxiliary column compresses the second spring, and the downward movement of the piston reduces the volume of the first liquid suction cavity. Then, when the liquid spraying trigger cover is released, the spring force of the second spring drives the auxiliary column to move upward and reset. The auxiliary column drives the main column and the liquid spraying trigger cover to move upward and reset together, increasing the volume of the first liquid suction cavity, and then sucking the liquid medicine in the bottle body into the first liquid suction cavity of the pump body. After the liquid medicine enters the first liquid suction cavity, it acts on the piston. The piston moves upward under the pressure of the liquid medicine, compressing the first spring, and the lower end of the piston is separated from the plunger part of the auxiliary column, forming a liquid suction port between the lower end of the piston and the plunger part of the auxiliary column. This liquid suction port is located at the upper end of the first liquid suction cavity and at the same time at the lower end of the second liquid suction cavity. The first liquid suction cavity and the second liquid suction cavity are connected through the liquid suction port, so that the liquid medicine in the first liquid suction cavity flows into the liquid suction port, the second liquid suction cavity, the third liquid suction cavity at one time and is sprayed out through the spray port of the liquid spraying assembly, realizing spray administration. After the administration is completed, the spring force of the first spring drives the piston to move downward and reset. The lower end of the piston abuts against the plunger part of the auxiliary column again, closing the liquid suction port and re-sealing the first liquid suction cavity and the second liquid suction cavity. Through the action of pressing and releasing the liquid spraying trigger cover and the combined action of the first spring and the second spring, the liquid medicine in the bottle body is sprayed out through the spray port of the liquid spraying assembly after passing through the first liquid suction cavity, the liquid suction port, the second liquid suction cavity and the third liquid suction cavity in sequence, realizing administration.

[0027] In a specific feasible embodiment, the pump body mechanism further includes a liquid suction pipe. One end of the liquid suction pipe is inserted into the pump body, and the other end of the liquid suction pipe extends to the bottom of the bottle body. The first liquid suction cavity is communicated with the inner cavity of the bottle body through the liquid suction pipe.

[0028] By adopting the above technical solution, with the design of the liquid suction pipe, it is ensured that there is a direct connection between the first liquid suction cavity of the pump body and the liquid in the bottle body, enabling the liquid to be effectively sucked into the pump body from the bottle body. Moreover, the liquid suction pipe extends to the bottom of the bottle body to ensure that the pump does not suck in air during operation, thus maintaining the continuous flow of the liquid in the pump body and avoiding bubbles or other interfering factors.

[0029] In a specific feasible embodiment, the pump body mechanism further includes a sealing bead. A sealing inclined surface is provided on the inner wall of the first liquid suction cavity. The sealing bead is arranged in the first liquid suction cavity and abuts against the sealing inclined surface.

[0030] By adopting the above technical solution, the sealing bead effectively improves the sealing performance of the pump body through the sealing inclined surface abutting against the inner wall of the first liquid suction cavity, preventing losses caused by liquid leakage during the operation of the pump body, which is particularly important especially in the transmission of high-viscosity or liquids with specific chemical properties. Moreover, the presence of the sealing bead can reduce the liquid residue in the first liquid suction cavity, ensuring the effectiveness and reliability of each liquid inhalation and discharge, thereby improving the operation efficiency and stability of the pump body.

[0031] In a specific feasible embodiment, the pump body mechanism further includes a sealing gasket, which is sleeved on the outer periphery of the pump main body and abuts against the outer wall of the pump main body. The two sides of the sealing gasket respectively abut against the pump base and the bottle body, and the side of the sealing gasket away from the pump main body abuts against the cover body.

[0032] By adopting the above technical solution, the sealing gasket is installed on the outer periphery of the pump main body and abuts against the outer wall of the pump main body, the pump base, the bottle body and the cover body respectively, ensuring the overall comprehensive sealing of the pump body mechanism. The comprehensive sealing design can prevent liquid leakage during the operation of the pump body, ensuring the operation safety and reliability of the system.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] The spray pump device of the present application realizes an effective anti-opening function through the one-way engagement of the ratchet and the pawl, and the convex-convex structure of the protection cover. This design not only protects the medicine from contamination or waste caused by accidental opening, but also reduces the risk of unauthorized access to the medicine. The designs of threaded connection and sliding connection make the assembly process of the entire spray pump simple and fast, while ensuring high product safety and stability, and can effectively improve the practicability, safety and user experience of the product; during actual use and installation, through the anti-reverse mechanism of the ratchet and the pawl, the stop surface can ensure that the cover body can only rotate in the designed direction, preventing accidental situations caused by misoperation, such as medicine leakage or waste. Moreover, the design of the guiding arc surface can ensure the smooth movement of the ratchet during forward rotation, thereby making the threaded connection between the cover body and the bottle body more firm and stable; the convex-convex structure effectively realizes the reliable connection and fixation between the protection cover and the liquid spraying trigger cover through its specific rib and convex ring designs, not only simplifying the assembly process, but also improving the durability and reliability of the entire device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the spray pump device according to the embodiment of the present application.

[0036] Figure 2 is a cross-sectional view for showing the ratchet, the pawl and the convex-convex structure.

[0037] Figure 3 It is a sectional view for showing the cooperation relationship between the ratchet wheel and the pawl.

[0038] Figure 4 It is an exploded view for showing the convex-convex structure.

[0039] Figure 5 It is a sectional view for showing the pump body mechanism when it is not working.

[0040] Figure 6 It is a sectional view for showing the pump body mechanism when it is working.

[0041] Figure 7 It is an exploded view for showing the air holes on the pump main body.

[0042] Explanation of reference numerals: 1. Cover body; 11. Ratchet wheel; 12. Limiting part; 13. Anti-slip pattern; 2. Bottle body; 21. Pawl; 211. Stopping surface, 212. Guide arc surface; 3. Liquid spraying trigger cover; 31. Anti-slip pressing part; 4. Pump body mechanism; 41. Sealing bead; 42. Liquid suction pipe; 43. Sealing gasket; 44. Liquid suction port; 45. Pump base; 5. Protective cover; 6. Convex-convex structure; 61. Convex strip; 62. Convex ring; 7. Liquid spraying component; 71. Spray port; 72. Outer water core; 73. Inner water core; 74. Third liquid suction cavity; 8. Pump core component; 81. Main column; 811. Protrusion; 82. Sub-column; 821. Column rod part; 822. Plunger part; 83. Piston; 84. First spring; 85. Second spring; 86. Second liquid suction cavity; 9. Pump main body; 91. First liquid suction cavity; 911. Sealing inclined surface; 912. Step groove; 92. Air hole; 10. Concave-convex matching structure. Detailed implementation manners

[0043] The following Figure 1-7 further elaborates on this application in detail.

[0044] Refer to Figure 1 and Figure 2 In the embodiments of this application, a spray pump device is disclosed. The spray pump device includes a cover body 1, and a ratchet wheel 11 is provided on the inner wall of the cover body 1. In this embodiment, the ratchet wheels 11 are uniformly arranged along the circumferential side of the inner wall of the cover body 1. In this embodiment, an anti-slip pattern 13 is provided on the outer wall of the cover body 1;

[0045] Refer to Figure 2 and Figure 3The spray pump device further comprises a bottle body 2, which is connected to the cover body 1 by threads. In the present embodiment, an outer wall of the bottle body 2 is provided with an outer thread, and an inner wall of the cover body 1 is provided with an inner thread, and the outer thread is connected with the inner thread; a plurality of ratchets 21 are provided on the outer wall of the bottle body 2. In the present embodiment, the outer wall of the bottle body 2 includes but is not limited to 6 ratchets 21, and the ratchet 11 is unidirectionally meshed with the ratchet 21 to limit the unidirectional rotation of the cover body 1 and the bottle body 2. In the present embodiment, the distance between two adjacent ratchets 21 is greater than the distance between two adjacent ratchet wheels 11;

[0046] In this embodiment, the ratchet 21 is provided with a stop surface 211 and a guide arc surface 212. In this embodiment, the stop surface 211 is set as a straight surface, and the stop surface 211 is set at 90 degrees with the horizontal direction; when the cover body 1 is rotated, the ratchet 11 slides over the guide arc surface 212, and the cover body 1 and the bottle body 2 are threadedly connected; when the cover body 1 is rotated in the reverse direction, the stop surface 211 and the ratchet 11 are abutted against each other, forming an anti-reversal connection between the cover body 1 and the bottle body 2;

[0047] Through the anti-reversal mechanism of the ratchet 11 and the pawl 21, the stop surface 211 can ensure that the cover body 1 can only rotate in the designed direction, preventing accidents caused by misoperation, such as drug leakage or waste; and the design of the guide arc surface 212 can ensure the smooth movement of the ratchet 11 when rotating in the forward direction, so that the threaded connection between the cover body 1 and the bottle body 2 is more firm and stable;

[0048] The spray pump device further comprises a liquid spray trigger cover 3, which is sleeved on the cover body 1 and slidably connected to the cover body 1;

[0049] The liquid spray trigger cover 3 slides back and forth up and down along the outer wall of the cover body 1. The cover body 1 is provided with a limiting portion 12. The outer circumference diameter of the limiting portion 12 is larger than the inner circumference diameter of the liquid spray trigger cover 3. When in use, the liquid spray trigger cover 3 can slide back and forth along the outer wall of the cover body 1 to realize the release of the liquid spray. In this process, by utilizing the design of the limiting portion 12, the liquid spray trigger cover 3 can limit the specific sliding path or range of the liquid spray trigger cover 3 on the cover body 1 when sliding, so as to prevent it from exceeding or deviating from the required operating range, thereby ensuring the reliability and durability of the operation.

[0050] The liquid spray trigger cover 3 is also provided with an anti-skid pressing portion 31; the design of the anti-skid pressing portion 31 makes the liquid spray trigger cover 3 more stable when pressed, reduces the possibility of finger sliding or instability, thereby improving the convenience and comfort during operation, and also enhancing safety and durability;

[0051] The spray pump device further includes a pump mechanism 4, which is disposed in the spray trigger cover 3 and the cover body 1 and partially inserted into the inner cavity of the bottle body 2. The pump mechanism 4 is used to draw the medicine in the bottle body 2 and spray the medicine out.

[0052] Reference Figure 2 and Figure 4 Figure 4 , the spray pump device further includes a protective cover 5, the protective cover 5 is sleeved on the liquid spraying trigger cover 3, and the protective cover 5 and the liquid spraying trigger cover 3 are fixed by a convex-convex structure 6;

[0053]

[0053] The convex-convex structure 6 includes a plurality of convex strips 61 provided on the outer wall of the liquid spraying trigger cover 3 and a convex ring 62 provided on the inner wall of the protective cover 5. In this embodiment, the convex strips 61 include but are not limited to being set to 2, and the 2 convex strips 61 are circumferentially evenly distributed around the liquid spraying trigger cover 3, and there is a gap between the 2 convex strips 61; after the protective cover 5 is sleeved on the liquid spraying trigger cover 3, when the protective cover 5 is pressed down, the convex ring 62 squeezes the plurality of convex strips 61 so that the convex ring 62 continues to move downward, and the convex ring 62 is clamped and abutted against the plurality of convex strips 61, and the protective cover 5 and the liquid spraying trigger cover 3 are abutted;

[0054]

[0054] The convex-convex structure 6 effectively realizes the reliable connection and fixation between the protective cover 5 and the liquid spraying trigger cover 3 through its specific design of the convex strips 61 and the convex ring 62, which not only simplifies the assembly process, but also improves the durability and reliability of the entire device during use;

[0055] Reference Figure 2-4 Figure 2-4 , during installation, the pump body mechanism 4 is installed in the cover body 1, the liquid spraying trigger cover 3 is sleeved on the cover body 1, that is, the pump body mechanism 4 is accommodated in the cover body 1 and the liquid spraying trigger cover 3, and then the cover body 1 and the bottle body 2 are fixedly connected by threads. During this process, the one-way meshing design of the ratchet 11 and the pawl 21 is used to limit the one-way rotation of the cover body 1 and the bottle body 2. Specifically, when the cover body 1 is rotated to install or open the spray pump device, the ratchet 11 slides over the guiding arc surface 212, and the cover body 1 and the bottle body 2 are smoothly threadedly connected. At this time, the stop surface 211 does not interfere with the sliding of the ratchet 11 and allows the cover body 1 to rotate normally to complete the connection, so that the user can easily and accurately screw the cover body 1 into the bottle body 2. When trying to rotate the cover body 1 in the reverse direction, for example, trying to unscrew or operating incorrectly, at this time, the stop surface 211 will abut against the ratchet 11, and this abutting effect prevents the cover body 1 from continuing to rotate in the reverse direction, ensuring that the threaded connection between the cover body 1 and the bottle body 2 will not be accidentally loosened or released, so as to achieve the anti-opening effect after installation;

[0056] Then, put the protective cover 5 on the liquid spraying trigger cover 3 and fix the protective cover 5 and the liquid spraying trigger cover 3 through the convex-convex structure 6. Specifically, put the protective cover 5 on the liquid spraying trigger cover 3 and press down the protective cover 5. The convex ring 62 inside the protective cover 5 will contact the convex strip 61 outside the liquid spraying trigger cover 3. During the pressing process, the convex ring 62 will squeeze the convex strip 61, causing the convex ring 62 to move downward continuously. When the convex ring 62 and the convex strip 61 are locked and abutted, they will be locked with each other, thus fixing the positions of the protective cover 5 and the liquid spraying trigger cover 3, realizing the reliable connection and fixation between the protective cover 5 and the liquid spraying trigger cover 3, and achieving the effect of preventing accidental opening.

[0057] During use, the operator opens the protective cover 5 and presses the liquid spraying trigger cover 3 through the anti-slip pressing part 31. By operating the liquid spraying trigger cover 3 to move up and down along the outer wall of the cover body 1, the pump body mechanism 4 is started. After the pump body mechanism 4 is opened, it draws the medicine in the bottle body 2 and sprays the medicine out, thereby realizing spray administration.

[0058] Through the one-way engagement of the ratchet 11 and the pawl 21 and the fixation of the convex-convex structure 6 of the protective cover 5, an effective anti-opening function is realized. This design not only protects the medicine from contamination or waste caused by accidental opening, but also reduces the risk of the medicine being accessed by unauthorized persons. The designs of screw connection and sliding connection make the assembly process of the whole spray pump simple and fast, while ensuring high product safety and stability, and can effectively improve the practicability, safety and user experience of the product.

[0059] Refer to Figure 5 and Figure 6 As shown in [relevant figures], the pump body mechanism 4 includes a liquid spraying component 7 provided with a spray port 71, a pump core component 8 and a pump main body 9. The liquid spraying component 7 is fixed in the liquid spraying trigger cover 3 and moves synchronously with the liquid spraying trigger cover 3. In this embodiment, the liquid spraying trigger cover 3 is provided with an outlet communicating with the spray port 71. The pump main body 9 is arranged in the cover body 1 and is connected to the cover body 1 through a pump base 45. In this embodiment, the pump main body 9 is inserted into and abuts against the pump base 45, and the pump base 45 abuts against the cover body 1. The pump core component 8 is arranged in the pump main body 9 and is drivingly connected to the liquid spraying component 7.

[0060] The pump body mechanism 4 further includes a sealing gasket 43. The sealing gasket 43 is sleeved on the outer periphery of the pump main body 9 and abuts against the outer wall of the pump main body 9. The two sides of the sealing gasket 43 respectively abut against the pump base 45 and the bottle body 2, and the side of the sealing gasket 43 away from the pump main body 9 abuts against the cover body 1. The sealing gasket 43 is installed on the outer periphery of the pump main body 9 and abuts against the outer wall of the pump main body 9, the pump base 45, the bottle body 2 and the cover body 1 respectively, ensuring the overall comprehensive sealing of the pump body mechanism 4. The comprehensive sealing design can prevent the leakage of liquid during the operation of the pump body, and ensure the operation safety and reliability of the system.

[0061] The pump core assembly 8 includes a main column 81, a secondary column 82, a piston 83, a first spring 84, and a second spring 85. The main column 81 is reciprocally installed within the pump body 9 and the pump base 45. The secondary column 82 is fixed within the main column 81. One end of the main column 81 is connected to the liquid spraying assembly 7 to move synchronously with the liquid spraying assembly 7. The main column 81 has a protrusion 811 that engages in a stop manner with the pump base 45;

[0062] The piston 83 is sleeved on the outer periphery of the main column 81, and the piston 83 is reciprocally installed within the pump body 9 to form a first liquid suction cavity 91 with variable volume. The two ends of the first spring 84 are respectively abutted against the protrusion 811 and the piston 83;

[0063] The secondary column 82 includes a column rod portion 821 inserted into the main column 81 and a plunger portion 822 fixed to the lower end of the column rod portion 821 and located outside the main column 81. In this embodiment, the plunger portion 822 abuts against the piston 83 of the main column 81. A second liquid suction cavity 86 is provided between the main column 81 and the column rod portion 821. The liquid spraying assembly 7 is provided with a third liquid suction cavity 74. The first liquid suction cavity 91, the second liquid suction cavity 86, the third liquid suction cavity 74, and the liquid spraying port 71 are communicated in sequence. The two ends of the second spring 85 are respectively abutted against the pump body 9 and the plunger portion 822. In this embodiment, the inner wall of the first liquid suction cavity 91 of the pump body 9 has a stepped groove 912 that engages in a stop manner with the piston 83 and the secondary column 82;

[0064] In this embodiment, the liquid spraying assembly 7 includes an outer water core 72 and an inner water core 73 that are sleeved with each other. The liquid spraying port 71 of the liquid spraying assembly 7 is provided at the top end of the outer water core 72. The inner water core 73 is provided within the outer water core 72. The end of the outer water core 72 away from the liquid spraying port 71 is sleeved on the outer periphery of the main column 81. A third liquid suction cavity 74 is formed between the outer water core 72 and the inner water core 73; One side of the outer water core 72 close to the liquid spraying port 71 abuts against the liquid spraying trigger cover 3. The outer water core 72 and the liquid spraying trigger cover 3 are fixedly connected through a concave-convex mating structure 10;

[0065] Refer to Figure 6 and Figure 7 , in this embodiment, the pump body 9 is further provided with a plurality of air holes 92. When at rest, the air holes 92 are in an open state and are communicated with the inner cavity of the bottle body 2. During the use process, when the piston 83 moves to abut against the air holes 92, the piston 83 will block the air holes 92;

[0066] Refer to Figure 5 and Figure 6, the pump body mechanism 4 further includes a sealing bead 41. A sealing inclined surface 911 is provided on the inner wall of the first liquid suction cavity 91. The sealing bead 41 is arranged in the first liquid suction cavity 91 and abuts against the sealing inclined surface 911; thereby effectively improving the sealing performance of the pump body, preventing losses caused by liquid leakage during the operation of the pump body, which is particularly important in the transmission of high-viscosity or liquids with specific chemical properties. Moreover, the presence of the sealing bead 41 can reduce the liquid residue in the first liquid suction cavity 91, ensuring the effectiveness and reliability of each liquid inhalation and discharge, thereby improving the operation efficiency and stability of the pump body;

[0067] The pump body mechanism 4 further includes a liquid suction pipe 42. One end of the liquid suction pipe 42 is inserted into the pump main body 9, and the other end of the liquid suction pipe 42 extends to the bottom of the bottle body 2. The first liquid suction cavity 91 is communicated with the inner cavity of the bottle body 2 through the liquid suction pipe 42; thereby ensuring a direct connection between the first liquid suction cavity 91 of the pump main body 9 and the liquid in the bottle body 2, enabling the liquid to be effectively sucked into the pump main body 9 from the bottle body 2, and the liquid suction pipe 42 extends to the bottom of the bottle body 2 to ensure that the pump does not suck in air during operation, thereby maintaining the continuous flow of the liquid in the pump main body 9 and avoiding bubbles or other interfering factors;

[0068] During use, when pressing the liquid spraying trigger cover 3, the liquid spraying trigger cover 3 drives the main column 81 to move downward together, and the auxiliary column 82 moves downward together with the main column 81. The auxiliary column 82 drives the piston 83 to move downward together through the first spring 84. The downward movement of the auxiliary column 82 causes the second spring 85 to be compressed, and the downward movement of the piston 83 makes the volume of the first liquid suction cavity 91 become smaller;

[0069] After that, when releasing the liquid spraying trigger cover 3, the spring force of the second spring 85 drives the auxiliary column 82 to move upward and reset. The auxiliary column 82 drives the main column 81 and the liquid spraying trigger cover 3 to move upward and reset together, making the volume of the first liquid suction cavity 91 become larger, and then sucking the liquid medicine in the bottle body 2 into the first liquid suction cavity 91 of the pump main body 9;

[0070] After the liquid medicine enters the first liquid suction cavity 91 through the liquid suction pipe 42, it acts on the piston 83. The piston 83 moves upward under the pressure of the liquid medicine, causing the first spring 84 to be compressed, and the lower end of the piston 83 is separated from the plunger part 822 of the auxiliary column 82, forming a liquid suction port 44 between the lower end of the piston 83 and the plunger part 822 of the auxiliary column 82. The liquid suction port 44 is located at the upper end of the first liquid suction cavity 91 and at the same time at the lower end of the second liquid suction cavity 86. The first liquid suction cavity 91 is communicated with the second liquid suction cavity 86 through the liquid suction port 44, so that the liquid medicine in the first liquid suction cavity 91 flows into the liquid suction port 44, the second liquid suction cavity 86, the third liquid suction cavity 74 at one time and is sprayed out through the spray port 71 of the liquid spraying assembly 7, realizing spray administration;

[0071] After the administration is completed, the spring force of the first spring 84 drives the piston 83 to move downward for resetting. The lower end of the piston 83 abuts against the plunger portion 822 of the auxiliary column 82 again, the liquid suction port 44 is closed, and the first liquid suction cavity 91 and the second liquid suction cavity 86 are re-sealed. By pressing and then releasing the liquid spraying trigger cover 3, and the combined action of the first spring 84 and the second spring 85, the liquid medicine in the bottle body 2 is ejected from the nozzle 71 of the liquid spraying assembly 7 after passing through the first liquid suction cavity 91, the liquid suction port 44, the second liquid suction cavity 86 and the third liquid suction cavity 74 in sequence, realizing spray administration.

[0072] The implementation principle of the embodiment of the present application is as follows: The present application mainly realizes an effective anti-opening function through the one-way engagement of the ratchet 11 and the pawl 21, and the convex-convex structure 6 of the protective cover 5 is fixed. This design not only protects the medicine from contamination or waste caused by accidental opening, but also reduces the risk of the medicine being accessed by unauthorized persons. The designs of threaded connection and sliding connection make the assembly process of the entire spray pump simple and fast, while ensuring high product safety and stability, and can effectively improve the practicability, safety and user experience of the product;

[0073] During installation, the pump body mechanism 4 is installed in the cover body 1, and the liquid spraying trigger cover 3 is sleeved on the cover body 1, that is, the pump body mechanism 4 is accommodated in the cover body 1 and the liquid spraying trigger cover 3. Then, the cover body 1 and the bottle body 2 are fixed by threaded connection. During this process, the one-way engagement design of the ratchet 11 and the pawl 21 is used to limit the one-way rotation of the cover body 1 and the bottle body 2. Specifically, when rotating the cover body 1 to install or open the spray pump device, the ratchet 11 slides over the guiding arc surface 212, smoothly enabling the threaded connection between the cover body 1 and the bottle body 2. At this time, the stop surface 211 does not interfere with the sliding of the ratchet 11, allowing the cover body 1 to rotate normally to complete the connection, so that the user can easily and accurately screw the cover body 1 into the bottle body 2. When attempting to rotate the cover body 1 in the reverse direction, for example, attempting to unscrew or operate it incorrectly, at this time, the stop surface 211 will abut against the ratchet 11. This abutting effect prevents the cover body 1 from continuing to rotate in the reverse direction, ensuring that the threaded connection between the cover body 1 and the bottle body 2 will not be accidentally loosened or disengaged, thus being able to achieve the anti-opening effect after installation;

[0074] Then, the protective cover 5 is sleeved on the liquid spraying trigger cover 3, and the protective cover 5 is pressed downward. The convex ring 62 inside the protective cover 5 will contact the convex strip 61 outside the liquid spraying trigger cover 3. During the downward pressing process, the convex ring 62 will squeeze the convex strip 61, causing the convex ring 62 to continue to move downward. When the convex ring 62 and the convex strip 61 are clamped and abutted, they will be clamped with each other, thereby fixing the positions of the protective cover 5 and the liquid spraying trigger cover 3, realizing the reliable connection and fixation between the protective cover 5 and the liquid spraying trigger cover 3, and achieving the anti-misopening effect.

[0075] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A spray pump device, characterized in that: Comprising: A cover body (1), on the inner wall of which a ratchet wheel (11) is provided; A bottle body (2), which is threadedly connected to the cover body (1). An outer wall of the bottle body (2) is provided with a pawl (21), and the ratchet wheel (11) and the pawl (21) are in one-way meshing to limit one-way rotation of the cover body (1) and the bottle body (2); A liquid spraying trigger cover (3), which is sleeved on the cover body (1) and is slidably connected to the cover body (1); A pump body mechanism (4), which is arranged in the liquid spraying trigger cover (3) and the cover body (1), and is used for sucking the medicine in the bottle body (2) and spraying the medicine out; A protective cover (5), which is sleeved on the liquid spraying trigger cover (3), and the protective cover (5) and the liquid spraying trigger cover (3) are fixed by a convex-convex structure (6); 2. The spray pump device according to claim 1, wherein: The pawl (21) is provided with a stop surface (211) and a guiding arc surface (212); when the cover body (1) is rotated, the ratchet wheel (11) slides over the guiding arc surface (212), and the cover body (1) and the bottle body (2) are threadedly connected; when the cover body (1) is rotated in the reverse direction, the stop surface (211) abuts against the ratchet wheel (11), forming an anti-reverse rotation connection between the cover body (1) and the bottle body (2).

3. The spray pump device according to claim 1, characterized in that: The convex-convex structure (6) includes a plurality of convex strips (61) provided on an outer wall of the liquid spraying trigger cover (3) and a convex ring (62) provided on an inner wall of the protective cover (5); after the protective cover (5) is sleeved on the liquid spraying trigger cover (3), when the protective cover (5) is pressed down, the convex ring (62) squeezes the plurality of convex strips (61) so that the convex ring (62) continues to move downward, and the convex ring (62) and the plurality of convex strips (61) are in clamping abutment, and the protective cover (5) and the liquid spraying trigger cover (3) are in abutment.

4. The spray pump device according to claim 1, wherein: The liquid spraying trigger cover (3) reciprocally slides along an outer wall of the cover body (1), and the cover body (1) is provided with a limiting portion (12), and an outer circumferential diameter of the limiting portion (12) is larger than an inner circumferential diameter of the liquid spraying trigger cover (3).

5. The spray pump device according to claim 1, characterized in that: The liquid spraying trigger cover (3) is provided with an anti-slip pressing portion (31).

6. The spray pump device according to claim 1, wherein: The pump body mechanism (4) includes a liquid spraying component (7) provided with a spray port (71), a pump core component (8) and a pump main body (9). The liquid spraying component (7) is fixed in the liquid spraying trigger cover (3) and moves synchronously with the liquid spraying trigger cover (3). The pump main body (9) is arranged in the cover body (1) and is connected to the cover body (1) through a pump base (45). The pump core component (8) is arranged in the pump main body (9) and is in transmission connection with the liquid spraying component (7).

7. The spray pump device according to claim 6, wherein: The pump core assembly (8) includes a main column (81), a secondary column (82), a piston (83), a first spring (84), and a second spring (85). The main column (81) is reciprocally installed within the pump body (9) and the pump base (45). The secondary column (82) is fixed within the main column (81). One end of the main column (81) is connected to the liquid spraying assembly (7) to move synchronously with the liquid spraying assembly (7). The main column (81) has a protrusion (811) that engages in a stop manner with the pump base (45). The piston (83) is sleeved on the outer periphery of the main column (81) and is reciprocally installed within the pump body (9) to form a first liquid suction cavity (91) with variable volume. The two ends of the first spring (84) are respectively abutted against the protrusion (811) and the piston (83). The secondary column (82) includes a column rod portion (821) inserted into the main column (81) and a plunger portion (822) fixed at the lower end of the column rod portion (821) and located outside the main column (81). A second liquid suction cavity (86) is provided between the main column (81) and the column rod portion (821). The liquid spraying assembly (7) is provided with a third liquid suction cavity (74). The first liquid suction cavity (91), the second liquid suction cavity (86), the third liquid suction cavity (74), and the liquid spraying port (71) are communicated in sequence. The two ends of the second spring (85) are respectively abutted against the pump body (9) and the plunger portion (822).

8. The spray pump device according to claim 7, wherein: The pump body mechanism (4) further includes a liquid suction pipe (42). One end of the liquid suction pipe (42) is inserted into the pump body (9), and the other end of the liquid suction pipe (42) extends to the bottom of the bottle body (2). The first liquid suction cavity (91) is communicated with the inner cavity of the bottle body (2) through the liquid suction pipe (42).

9. The spray pump device according to claim 7, wherein: The pump body mechanism (4) further includes a sealing bead (41). A sealing inclined surface (911) is provided on the inner wall of the first liquid suction cavity (91). The sealing bead (41) is arranged within the first liquid suction cavity (91) and abuts against the sealing inclined surface (911).

10. The spray pump device according to claim 7, wherein: The pump body mechanism (4) further includes a sealing gasket (43). The sealing gasket (43) is sleeved on the outer periphery of the pump body (9) and abuts against the outer wall of the pump body (9). The two sides of the sealing gasket (43) are respectively abutted against the pump base (45) and the bottle body (2). The side of the sealing gasket (43) away from the pump body (9) abuts against the cover body (1).

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