Passive automatic discharging bottle
The passive automatic dispensing bottle solves the problems of low filling efficiency and material contamination in existing automatic dispensing bottles through under-valve filling and sealing structure, and achieves efficient and seamless material conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-20
AI Technical Summary
Existing automatic dispensing bottles suffer from problems such as low filling efficiency, easy clogging of viscous materials, and quality degradation due to material contact with air during the filling process, and require the use of barrier materials to prevent contamination of the material.
It adopts a passive automatic dispensing bottle design and uses a valve-filling method. The bag assembly and valve body adopt a large-diameter connection channel and sealing structure. Combined with the clamping part and fastening section, it ensures stable installation. The return spring and sealing ring are used to ensure airtightness. The dispensing gun assembly achieves precise control.
It improves filling efficiency, avoids material contact with air, prevents blockage, ensures material quality, and simplifies the operation process.
Smart Images
Figure CN224014458U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a discharging device, concretely is passive automatic discharging bottle. BACKGROUND
[0002] The bag is placed in the closed positive pressure bottle, and the automatic discharging purpose is realized through the trigger valve body without the help of additional pressure, and is often used for automatic glue discharging.For this kind of automatic discharging bottle, the current production technology is to complete the assembly of the bag, the valve body and the positive pressure bottle first, at this time, the positive pressure bottle has been filled with gas and is in a positive pressure state, then the valve core of the valve body is used to add material into the bag, that is, the valve is filled.The production mode of this valve filling has many defects, for example, due to the influence of the small diameter of the valve core, the filling efficiency is low, and for the material with high viscosity, the valve filling often appears the phenomenon of blockage;After filling, the valve core needs to be filled with insulation (such as vaseline) to insulate air, so as to prevent the reaction of the material and air, but the insulation used will pollute the material, and a section of the mixture of the material and the insulation needs to be punched out before use.In addition, during the valve filling process, the air in the valve core and the bag is not easy to exhaust, and these air is mixed into the material, which causes the existence of air bubbles or surface pits in the extruded material, and reduces the product quality. SUMMARY
[0003] The utility model aims at providing a passive automatic discharging bottle which can be filled under the valve, so as to solve the problems in the background art.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: the passive automatic discharging bottle comprises a positive pressure bottle, a discharging valve assembly which is sealingly installed on the top of the positive pressure bottle, and a bag assembly which is arranged inside and connected with the valve body of the discharging valve assembly.The bag assembly comprises a bag and a bag mouth which is arranged on the top of the bag, the bag mouth is provided with a clamping part outside and a connecting channel which communicates with the bag in the middle;The upper part of the connecting channel is a mounting part, and the mounting part comprises a fastening segment;The bag mouth is mounted on the valve body from bottom to top through the mounting part, and the fastening segment is mounted in cooperation with the fastening mounting part arranged on the valve body.
[0005] In the above technical solution, the clamping part is arranged to fix the capsule bag assembly to the material injection device, facilitating the filling of the capsule bag through the capsule bag mouth; the assembly part is arranged as the assembly part of the capsule bag mouth and the valve body, and the assembly part is installed on the valve body from bottom to top after filling, and the fastening segment is fastened to the fastening assembly part to ensure firm assembly. The structure adopted in this solution supports valve filling, i.e., the capsule bag assembly is filled first, and then the capsule bag assembly is assembled with the valve body. Since the diameter of the connecting channel is significantly larger than that of the material outlet channel of the material outlet valve assembly, the capsule bag can be filled smoothly regardless of the viscosity of the material, and the filling efficiency can be significantly improved. In addition, since the valve body is in a closed state before and after assembly, the material does not come into contact with air, and there is no need to use a barrier to block the valve core.
[0006] As a preferred solution of the fastening segment in the passive automatic material outlet bottle, the fastening segment preferably comprises a plug-in segment II and a plug-in segment III, wherein the diameter of the plug-in segment III is larger than that of the plug-in segment II; the fastening assembly part comprises a plug-in segment and a flange, wherein the diameter of the flange is larger than that of the plug-in segment, and the flange is installed in cooperation with the plug-in segment III, and the two are clamped to each other to ensure that the capsule bag mouth is stably installed on the valve body, and the outer wall of the plug-in segment is in close contact with the inner wall of the plug-in segment II after assembly. This solution adopts a flat plug-in installation structure to install the capsule bag mouth, facilitating quick assembly, and the capsule bag mouth will be tightly attached to the valve body after deformation and recovery, having good sealing performance.
[0007] As another preferred solution of the fastening segment, the inner wall of the fastening segment is provided with internal threads, the outer wall of the fastening assembly part is provided with external threads, and the fastening segment is threadedly assembled with the fastening assembly part. The cooperation of the internal threads and the external threads can improve the cooperation strength, and the sealing labyrinth formed between the threads can improve the sealing effect between the capsule bag mouth and the valve body.
[0008] As still another preferred solution of the fastening segment, the inner wall of the fastening segment is in close contact with the fastening assembly part, and the fastening segment is welded to the fastening assembly part, so that the capsule bag mouth and the valve body become an integral whole, while the assembly structure strength and the sealing performance of the assembly are ensured.
[0009] As a preferred solution of the assembly part in the passive automatic material outlet bottle, the assembly part further comprises a sealing segment, which is arranged in close contact with a sealing ring I on the valve body, and serves as an independent sealing structure between the capsule bag mouth and the valve body, so as to ensure that high-pressure gas cannot enter the capsule bag through the gap, and the material cannot leak from the capsule bag mouth into the positive pressure bottle.
[0010] As a preferred solution, the valve body comprises a valve body and a valve core, wherein the upper part of the valve body is provided with a sealing top cover for sealing connection with the positive pressure bottle; the lower part of the valve core is installed in the valve chamber inside the valve body, the upper part penetrates through the valve body and is located outside the positive pressure bottle, and a reset spring is arranged in the valve chamber; the valve core has a material passing channel with an open top, and a material inlet hole is arranged at the lower part of the valve core to connect the material passing channel; downward pressing can make the valve core move downward to connect the material inlet hole with the connection channel, and the valve core can automatically reset and cut off the connection between the material inlet hole and the connection channel under the action of the reset spring.
[0011] As a preferred solution, the lower part of the valve body is provided with a separately installed lower limiting seat, the reset spring is sleeved outside the periphery of the valve core, the lower end of the reset spring abuts against the upper edge of the lower limiting seat, the upper end of the reset spring abuts against the limiting edge arranged outside the periphery of the valve core, and the outer wall of the lower part of the valve core abuts against the inner wall of the lower limiting seat. The separately installed lower limiting seat facilitates the assembly of the valve core, which not only provides support for the lower end of the reset spring, but also guides the valve core to ensure that the valve core is in a stable state.
[0012] As a preferred solution, the material inlet hole is located on the side of the lower part of the valve core, and an upper sealing ring and a lower sealing ring are arranged on the valve core below and above the material inlet hole, respectively, wherein the upper sealing ring is always closely abutted against the inner wall of the lower limiting seat, and the lower sealing ring is closely abutted against the inner wall of the lower limiting seat after the valve core is reset. When the lower end of the valve core protrudes out of the lower limiting seat, the material in the bag enters the material inlet hole through the connection channel, and then passes through the material passing channel, at this time, the upper sealing ring and the lower limiting seat are in a sealed state, which not only prevents air from contacting the material in the bag, but also prevents the material from entering the valve chamber, and when the discharging is stopped, the lower sealing ring and the lower limiting seat are in a sealed state, at this time, the material can be prevented from leaking into the material inlet hole.
[0013] As a preferred solution, the passive automatic discharging bottle further comprises a discharging gun assembly, the discharging gun assembly comprises a gun seat, a pressing handle and a discharging gun tube; the gun seat is installed on the upper part of the discharging valve assembly, the discharging gun tube is sleeved on the upper end of the valve core, and the pressing handle is a lever mechanism capable of pressing the discharging gun tube downward. The front end of the pressing handle is movably installed on the gun seat through a mounting shaft, the discharging gun tube penetrates through the avoiding opening arranged in the middle part of the pressing handle upward, and a pressure receiving mechanism is arranged on the side of the discharging gun tube, the pressure receiving mechanism abuts against the contact part arranged on the back surface of the pressing handle. When the pressing handle is pressed downward, the contact part extrudes the pressure receiving mechanism downward, thereby pushing the valve core to move downward, so as to realize automatic discharging, and the discharging can be stopped by releasing the pressing handle, so that the user can accurately control the discharging amount according to the use demand.
[0014] As a preferred solution, a limiting opening is arranged on the gun seat, a limiting head corresponding to the limiting opening is arranged on the pressing handle, and the limiting range of the pressing handle is limited by the cooperation of the limiting opening and the limiting head.
[0015] As a preferred solution, the bag assembly further comprises a supporting mechanism which forms an inner channel extending along the length direction within the bag, so as to avoid the situation that the material in the lower part of the bag cannot be squeezed out due to the squeezing of the middle part of the bag. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:
[0017] Figure 1 The structure schematic diagram of the passive automatic discharging bottle provided by the present application is shown in the figure, wherein the positive pressure bottle is in a half cut state;
[0018] Figure 2 For Figure 1 The first assembly structure schematic diagram of the bag mouth and the discharging valve assembly is shown in the figure;
[0019] Figure 3 For Figure 1 The half cut structure schematic diagram of the discharging valve assembly in the passive automatic discharging bottle shown in the figure is shown in the figure;
[0020] Figure 4 For Figure 1 The structure schematic diagram of the discharging gun assembly in the passive automatic discharging bottle shown in the figure is shown in the figure;
[0021] Figure 5 For Figure 4 The half cut structure schematic diagram of the discharging gun assembly in the passive automatic discharging bottle shown in the figure is shown in the figure;
[0022] Figure 6 For Figure 1 The half cut structure schematic diagram of the bag assembly in the passive automatic discharging bottle is shown in the figure;
[0023] Figure 7 For Figure 1 The second assembly structure schematic diagram of the bag mouth and the discharging valve assembly in the passive automatic discharging bottle is shown in the figure.
[0024] In the figure, the positive pressure bottle 1, the discharge gun assembly 2, the discharge valve assembly 3, the capsule bag assembly 4, the capsule bag nozzle 41, the capsule bag 42, the spring 43, the gun seat 211, the buckle along 212, the pressing handle 213, the mounting shaft 214, the limiting head 215, the limiting port 216, the avoiding port 217, the discharge gun tube 218, the discharge gun nozzle 219, the positioning hole 220, the valve body 301, the sealing top cover 302, the valve core 303, the flange 304, the plug-in section 305, the flange I 306, the sealing groove 307, the sealing ring I 308, the valve chamber 309, the lower limiting seat 310, the limiting along 311, the reset spring 312, the feeding hole 313, the upper sealing ring 314, the lower sealing ring 315, the valve nozzle sealing ring 316, the top cover sealing ring 317, the threaded section I 318, the connecting channel 411, the plug-in section I 412, the plug-in section II 413, the plug-in section III 414, the flange II 415, the ring groove 416, the threaded section II 417. DETAILED DESCRIPTION
[0025] The implementation of the application will be described in detail below with the help of the drawings and examples, so that the realization process of the application in applying technical means to solve technical problems and achieve technical effects can be fully understood and implemented.
[0026] Figure 1 For an embodiment of the utility model, the passive automatic discharge bottle comprises a positive pressure bottle 1, a discharge gun assembly 2 is installed at the top of the positive pressure bottle 1, and through the cutaway positive pressure bottle 1, it can be seen that a discharge valve assembly 3 is installed at the opening at the top of the positive pressure bottle 1, and the lower part of the valve body of the discharge valve assembly 3 is located in the positive pressure bottle 1; a capsule bag assembly 4 is also independently arranged in the positive pressure bottle 1, the capsule bag assembly 4 comprises a capsule bag 42 and a capsule bag nozzle 41 which is sealingly connected at the top of the capsule bag 42, and the capsule bag nozzle 41 is installed at the lower part of the valve body. From Figure 1 It can be seen that there is a remaining space between the capsule bag assembly 4 and the positive pressure bottle 1, and the capsule bag assembly 4 is in a high-pressure environment by filling high-pressure gas in the remaining space, so that automatic discharge can be realized by triggering the valve body without the help of additional pressure.
[0027] The main feature of the passive automatic discharge bottle provided by the embodiment is to support valve underfilling, such as Figure 2As shown, the outer part of the bag mouth 41 is provided with a clamping part, after the bag assembly 4 is installed in the positive pressure bottle 1, the filling device clamps the clamping part of the bag mouth 41, so as to fix the bag assembly 4, so as to smoothly fill; The middle part of the bag mouth 41 used is a connecting channel 411 connecting the bag 42, and the material enters the bag 42 through the connecting channel 411 during filling. Because the caliber of the connecting channel 411 is obviously larger than that of the material passing channel of the discharge valve assembly 3, whether the viscosity of the material is small or large, the bag 42 can be filled smoothly, and the filling efficiency can be improved significantly. The upper part of the connecting channel 411 is an assembly part, the upper part of the assembly part is a sealing section, and the lower part is a fastening section. For the bag assembly 4 that has completed filling, the assembly part at the upper part of the bag mouth 41 is installed on the valve body 301 from bottom to top, and the sealing section is tightly fitted with the sealing ring I 308 sleeved on the valve body 301, so that high-pressure gas cannot enter the bag 42 through the gap, and the fastening section is installed in cooperation with the fastening assembly part provided on the valve body 301, so as to ensure the assembly stability of the bag mouth 41.
[0028] Specifically, the upper part of the bag mouth 41 is provided with two rings of flanges II 415, and a ring groove 416 is formed between the two rings of flanges II 415. The flanges II 415 and the ring groove 41 together serve as a clamping part, which facilitates the clamping of the bag mouth 41 by the filling equipment. At the same time, the two rings of flanges II 415 can effectively reinforce the bag mouth 41.
[0029] Regarding the assembly of the bag assembly 4 and the valve body 301, the present embodiment provides a flat insertion type mounting structure, as shown in Figure 2 As shown, the entire assembly part is divided into insertion section I 412, insertion section II 413 and insertion section III 414 from top to bottom, wherein the insertion section I 412 serves as a sealing section, the caliber of which is larger than that of the insertion section III 414, and the caliber of the insertion section III 414 is larger than that of the insertion section II 413. Correspondingly, the outer periphery of the valve body 301 is provided with two rings of flanges I 306, and a sealing groove 307 is formed between the two rings of flanges I 306 and a sealing ring I 308 is installed. The lower part of the flange I 306 is provided with an insertion section 305, and the lower part of the insertion section 305 is provided with a flange 304. In the assembled state, the inner wall of the insertion section I 412 is fitted with the flange I 306, and is sealed by the sealing ring I 308, so that high-pressure gas cannot enter the inside of the bag 42; the insertion section III 414 is engaged with the flange 304, and the upper edge of the insertion section II 413 is in contact with the flange I 306 below, and the inner wall of the insertion section II 413 is fitted with the inner wall of the insertion section 305. This flat insertion mounting structure facilitates quick assembly, and after assembly, the bag mouth 41 will be tightly attached to the valve body due to the deformation recovery, has good airtightness, and can ensure that the bag mouth 41 and the valve body 301 remain in a stable mounting state.
[0030] Regarding the discharge valve assembly 3 used in the present embodiment, the valve body is sealed and installed at the bottle mouth of the positive pressure bottle 1 through the sealing top cover 302 provided at the upper part. As shown inFigure 3 As shown, the valve body includes a valve body 301 and a valve core 303, wherein the upper part of the valve body 301 is provided with a sealing top cover 302 connected to the positive pressure bottle 1. As can be seen, a top cover sealing ring 317 is arranged between the sealing top cover 302 and the valve body 301 to ensure that the sealing top cover 302 and the valve body 301 are in airtight state, preventing high-pressure gas leakage. The lower part of the valve core 303 is installed in the valve chamber 309 inside the valve body 301, and the upper part passes through the valve body 301 and is located outside the positive pressure bottle 1. A return spring 312 is sleeved on the valve core 303 in the valve chamber 309. Figure 3 As can be seen, the upper end of the return spring 312 abuts against the limiting guide 311 arranged on the outer periphery of the valve core 303, and the lower end abuts against the lower limiting seat 310 independently installed at the lower end of the valve chamber 309. Under the action of the return spring 312, the limiting guide 311 abuts against the valve body 301 upward. In addition, the valve core 303 has an open top material passing channel, the outer wall of the lower part of the valve core 303 abuts against the inner wall of the lower limiting seat 310, and a feeding hole 313 connected to the material passing channel is arranged at the abutting position. At the same time, the upper sealing ring 314 and the lower sealing ring 315 are arranged on the valve core 303 below and above the feeding hole 313, respectively, wherein the upper sealing ring 314 always abuts against the inner wall of the lower limiting seat 310, and the feeding hole 313 is connected to the connecting channel 411 by pressing the valve core 303 downward, at this time the material in the bag 42 enters the material passing channel through the feeding hole 313, and after the pressure is removed, the valve core 303 can be automatically reset and the communication between the feeding hole 313 and the connecting channel 411 is cut off under the action of the return spring 312, at this time the lower sealing ring 315 abuts against the inner wall of the lower limiting seat 310, and the upper sealing ring 314 and the lower sealing ring 315 cooperate to ensure the airtightness of the valve body.
[0031] As shown, the discharge gun assembly 2 used in the embodiment includes a gun seat 211, a pressing handle 213 and a discharge gun tube 218, and has a discharge gun nozzle 219 capable of being installed at the top of the discharge gun tube 218. The entire discharge gun assembly 2 is clamped on the sealing top cover 302 through the gun seat 211 by the lower clamping guide 212. Figure 4 As can be seen, the front end of the pressing handle 213 is movably installed on the gun seat 211 through the mounting shaft 214. In order to avoid the movement of the pressing handle 213 beyond the limit, the limiting port 216 is arranged on the gun seat 211, and the limiting head 215 corresponding to the limiting port 216 is arranged on the pressing handle 213, and the movement range of the pressing handle 213 is limited by the cooperation of the limiting port 216 and the limiting head 215. Figure 5
[0032] The lower end of the discharge gun barrel 218 passes through the positioning hole 220 provided at the lower part of the gun seat 211 and is fitted onto the valve core 303. Its upper end passes upward through the clearance opening 217 provided in the middle of the pressing handle 213. A pressing platform 221 is provided on the side of the discharge gun barrel 218, and the pressing platform 221 abuts against the contact part 222 provided on the back of the pressing handle 213. Based on this structure of the discharge gun assembly 2, when the pressing handle 213 is pressed down, the contact part 222 pushes the pressing platform 221 downward, thereby pushing the valve core 303 to move downward. After the material enters the valve core 303, it is squeezed out from the discharge gun barrel 218. In order to avoid leakage at the connection between the discharge gun barrel 218 and the valve core 303, a valve nozzle sealing ring 316 is provided on the upper part of the valve core 303 in this embodiment.
[0033] This embodiment mainly relies on the high-pressure gas in the positive pressure bottle 1 to squeeze the bag 42 and squeeze out the material inside. However, since the bag 42 itself is made of flexible material, the high pressure can easily cause the material inside the bag 42 to be interrupted, which will result in some material not being squeezed out. In this embodiment, a spring 43 extending along the length of the bag 42 is provided at the connecting channel 411. The spring 43 forms a stable inner channel in the bag 42, thereby ensuring that the material can be discharged smoothly.
[0034] In addition, regarding the assembly of the bladder assembly 4 and the valve body 301, this utility model also provides a threaded connection structure, which differs from the flat-insertion installation structure in that the fastening section adopts... Figure 7 The threaded section II417 shown has an internal thread, and correspondingly, the fastening assembly on the valve body 301 is a threaded section I318 with an external thread. Before the threaded section II417 and the threaded section I318 are fully assembled, the sealing ring I308 has already contacted the inner wall of the insertion section I412. Therefore, after assembly, the bladder nozzle 41 is fixed and sealed simultaneously. This assembly method using internal and external threads can improve the fit strength, and at the same time, a sealing labyrinth is formed between the threads, thereby further improving the sealing effect between the bladder nozzle 41 and the valve body.
[0035] In addition to using the above-mentioned flat-insertion installation or threaded connection structure to assemble the bladder nozzle 41 and the valve body, a plastic welding process can also be used. After assembling the fastening section and the fastening assembly, a plastic welding device is used to complete the welding of the two. This connection method can integrate the assembly and the fastening assembly into one, thereby completely sealing the gap between the two, ensuring airtightness even without using a sealing ring for independent sealing.
[0036] As used in the specification and claims, some terms can have special meanings. Those of skill in the art will understand that a hardware manufacturer can use a different name for the same component. Accordingly, the specification and claims should not be construed as limiting the component based on the name used for the component. Rather, the specification and claims should be construed based on the component's function. The term "comprising" as used herein is an open term, and should be construed to cover "comprising but not limited to" or "comprising at least the elements recited." The term "substantially" means within acceptable manufacturing tolerances, and those skilled in the art will understand that the technical problem can be solved within acceptable tolerances, and that the technical effect will be substantially achieved.
[0037] It is to be understood that the terms "including", "comprising", or any other variation thereof are intended to cover the non-exclusive inclusion of the elements specified and that the method or system including the elements does not preclude the addition of other elements, or the inclusion of further elements, without departing from the scope of the method or system. The term "consisting of" is intended to mean excluding any element except the elements specified.
[0038] The above description illustrates and describes the only preferred embodiments of the present application. However, it is to be understood that the application is not limited to the above-described and illustrated forms, and that modifications and variations are possible without departing from the spirit or essential characteristics thereof, and that further embodiments exist within the scope of the application as described in the claims. Changes can be made in the function and arrangement of parts as can be desired, without departing from the spirit and scope of the present application as described in the specification and defined in the following claims.
Claims
1. A passive automatic dispensing bottle, comprising a positive pressure bottle, wherein a dispensing valve assembly is sealed and installed on the top of the positive pressure bottle, and a bag assembly is provided inside, the bag assembly being connected to the valve body of the dispensing valve assembly, characterized in that: The bag assembly includes a bag and a bag nozzle at the top of the bag. The bag nozzle has a clamping part on its outside and a connecting channel in the middle that connects to the bag. The upper part of the connecting channel is an assembly part, which includes a fastening section. The bag nozzle is installed on the valve body from bottom to top through the assembly part, and the fastening section cooperates with the fastening assembly part on the valve body.
2. The passive automatic dispensing bottle as described in claim 1, characterized in that: The fastening section includes a plug section II and a plug section III, wherein the diameter of plug section III is larger than the diameter of plug section II; the fastening assembly includes a plug section and a flange, wherein the diameter of the flange is larger than the diameter of the plug section, and it is installed in conjunction with plug section III, and the outer wall of the plug section is in contact with the inner wall of plug section II.
3. The passive automatic dispensing bottle as described in claim 1, characterized in that: The inner wall of the fastening section is provided with internal threads, and the outer wall of the fastening assembly is provided with external threads. The fastening section and the fastening assembly are threadedly assembled.
4. The passive automatic dispensing bottle as described in claim 1, characterized in that: The fastening section fits against the inner wall of the fastening assembly, and the two are welded together.
5. The passive automatic dispensing bottle as described in any one of claims 1-4, characterized in that: The assembly also includes a sealing section that fits tightly against a sealing ring I disposed on the valve body.
6. The passive automatic dispensing bottle as described in claim 1, characterized in that: The valve body includes a valve body and a valve core. The upper part of the valve body is provided with a sealing top cover that is sealed to the positive pressure bottle. The lower part of the valve core is installed in a valve chamber inside the valve body, and the upper part passes through the valve body and is located outside the positive pressure bottle. A return spring is provided in the valve chamber. The valve core has a material passage that is open at the top and a feed hole that is connected to the material passage at the bottom. Pressing it down can move the valve core down to the feed hole to connect with the connecting channel. Under the action of the return spring, the valve core can automatically reset and cut off the connection between the feed hole and the connecting channel.
7. The passive automatic dispensing bottle as described in claim 6, characterized in that: The lower part of the valve body is provided with an independently installed lower limit seat. The reset spring is sleeved on the outer periphery of the valve core, with its lower end touching the upper edge of the lower limit seat and its upper end touching the limit edge provided on the outer periphery of the valve core.
8. The passive automatic dispensing bottle as described in claim 7, characterized in that: The feed hole is located on the side of the lower part of the valve core, and the outer wall of the lower part of the valve core is in contact with the inner wall of the lower limit seat. There are upper sealing rings and lower sealing rings on the valve core below and above the feed hole, respectively. The upper sealing ring is always in close contact with the inner wall of the lower limit seat, and when the valve core is reset, the lower sealing ring is in close contact with the inner wall of the lower limit seat.
9. The passive automatic dispensing bottle as described in claim 6, characterized in that: The passive automatic dispensing bottle also includes a dispensing gun assembly, which includes a gun base, a pressing handle, and a dispensing gun barrel. The gun base is installed on the upper part of the dispensing valve assembly, the dispensing gun barrel is fitted on the upper end of the valve core, and the pressing handle is a lever mechanism that can press down the dispensing gun barrel.
10. The passive automatic dispensing bottle as described in claim 9, characterized in that: The front end of the pressing handle is movably mounted on the gun base via a mounting shaft, and the discharge gun barrel passes upward through the clearance opening provided in the middle of the pressing handle; a pressure-bearing mechanism is provided on the side of the discharge gun barrel, and the pressure-bearing mechanism abuts against the contact part provided on the back of the pressing handle.
11. The passive automatic dispensing bottle as described in claim 10, characterized in that: A limiting port is provided on the gun base, and a corresponding limiting head is provided on the pressing handle to insert into the limiting port. The range of motion of the pressing handle is limited by the cooperation between the limiting port and the limiting head.
12. The passive automatic dispensing bottle as described in claim 1, characterized in that: The pouch assembly also includes a support mechanism that forms an inner channel extending along the length direction within the pouch, and the inner channel communicates with the connecting channel.