A daily chemical container with a quantitative discharging structure

Abstract

The application discloses a daily chemical product container with a quantitative discharging structure and belongs to the technical field of pressing type liquid discharging containers. The daily chemical product container comprises a bottle body, a pressing head, a screw cap, a pump body assembly and an adjusting mechanism. The adjusting mechanism mainly comprises an adjusting ring, a linkage sleeve and a limiting ring. The adjusting ring is rotated to drive the linkage sleeve to rotate, and the limiting ring guided by the connector is lifted and lowered, so that the maximum downward stroke of the pressing head is changed, and the precise control of the single liquid discharging amount is realized. The gear clamping convex on the linkage sleeve is matched with the dense gear slot on the inner side of the screw cap, clear gear feeling and reliable self-locking are provided, and the gear drift in use is prevented. The limiting ring can be lifted to completely limit the pressing head, a zero liquid discharging closed gear is formed, and the effective prevention of accidental touch and liquid leakage is realized. The application has stable structure, and solves the problems of the traditional adjustable pump head, such as the easy breakage of the liquid discharging pipe, the unstable gear and the insufficient safety.

Description

Technical Field

[0001] This invention relates to the field of press-type liquid dispensing containers, and more specifically to a daily chemical product container with a metering dispensing structure. Background Technology

[0002] Press-type liquid dispensing containers are widely used in daily chemical, personal care, and cosmetic industries. They dispense a fixed amount of liquid by pressing the pump head, making them convenient to use. To meet the differentiated liquid dispensing needs of different usage scenarios, patent document CN115007410A discloses a pump head assembly and a storage bottle. It features an adjustable top valve on the pressing unit. By rotating the top valve with a knob, the extension length of the top valve relative to the knob sleeve is changed, thereby adjusting the distance the top valve pushes the pump core. This allows for adjustment of the single dispensing volume, which to some extent solves the problem of fixed dispensing volume and easy liquid waste caused by traditional pump heads.

[0003] The pump head assembly disclosed in this patent relies on an external knob to adjust the stroke of the top valve, and uses a positioning bead and positioning hole to achieve gear positioning. Structurally, its core working logic is based on a pressing unit driving the top valve, which in turn pushes the pump head to dispense liquid. This is a typical technical solution for existing adjustable dispensing pump heads. However, in actual use and production assembly, the pump head assembly disclosed in this patent has significant defects:

[0004] Poor structural stability and easy damage: When the pressing unit is working, the liquid outlet pipe directly bears the lateral pressure and vertical pressure. When the pressure is too high or the force is not parallel, the liquid outlet pipe is very easy to break, which leads to pump head failure and short service life.

[0005] The gear position lacks reliable self-locking, and the liquid output is prone to drift: It only achieves simple positioning through positioning beads and positioning holes, without a rigid gear locking structure. When subjected to external force collisions, vibrations, or shaking during use, the gear position is prone to shift, making it impossible to stably maintain the set liquid output and affecting the consistency of use.

[0006] High risk of accidental activation and insufficient safety when carried: The exposed adjustment knob has no locking protection structure. When carried, placed or touched by children, it is easy to accidentally turn it to change the liquid volume, or even cause accidental liquid dispensing or leakage. It has poor safety and portability.

[0007] Significant structural modifications and high adaptation costs: The low integration between the adjustment mechanism and the pump head body necessitates substantial changes to the original pump head mold, resulting in a large number of parts and complex assembly, which increases production and modification costs.

[0008] In summary, the pump head assembly disclosed in CN115007410A cannot simultaneously meet the requirements of durable structure, stable gear position, prevention of accidental contact, and low cost compatibility, which restricts the further application of adjustable stroke press-type containers in the daily chemical packaging field. Summary of the Invention

[0009] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a fabric connector that prevents indentations on the fabric, thereby solving the technical problem that indentations will occur on the fabric when using existing fabric connectors to wind up the fabric.

[0010] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0011] A daily chemical product container with a quantitative dispensing structure includes a bottle body, a pressing head, a screw cap threaded to the bottle body, a pump assembly with its upper end threaded to the inside of the screw cap and its lower end movably inserted into the inside of the bottle body, a connector fixedly snapped onto the upper end of the pump assembly and movably inserted into the internal space of the lower end of the pressing head, a linkage sleeve rotatably disposed within the screw cap for fitting the lower end of the pressing head, an adjusting ring tightly fitted onto the upper end of the linkage sleeve and located at the top of the screw cap, a limiting ring threaded to the linkage sleeve for limiting the maximum downward displacement of the pressing head, and a liquid guide tube with its upper end inserted into the inside of the pressing head and its lower end inserted into the inside of the pump assembly. The outer wall of the connector is provided with several guide holes, and the inner side of the limiting ring is provided with several limiting protrusions for inserting into the guide holes to prevent the limiting ring from rotating. By rotating the adjusting ring, the linkage sleeve is rotated, causing the limiting ring to rise and fall to change the downward stroke of the pressing head, thereby controlling the single dispensing volume.

[0012] Preferably, the inner wall of the linkage sleeve is provided with a thread for driving the limit ring to move up and down, and four gear shift protrusions are provided at equal intervals on the outer side of the lower end; the inner side of the swivel cap is provided with several gear shift grooves that cooperate with the gear shift protrusions, so that when the adjusting ring is rotated, the gear shift protrusions are engaged with the gear shift grooves to achieve gear self-locking.

[0013] Preferably, there are 24 gear slots. The gear shift protrusion cooperates with the gear slot to achieve rotational positioning and make a clicking sound, preventing gear drift during use.

[0014] Preferably, the limiting ring can move upward to completely restrict the downward movement of the pressing head, forming a zero-discharge shut-off position to prevent accidental contact and leakage.

[0015] Preferably, the pump body assembly includes a cylinder threaded inside the cap, a piston slidably disposed inside the cylinder, a first steel ball for movably sealing the cylinder inlet, a compression spring for pushing the piston to reset, and a suction tube inserted into the cylinder inlet; the upper end of the compression spring abuts against the piston or the lower end of the suction tube, and its lower end abuts against the first steel ball; the lower end of the suction tube is inserted into the piston and communicates with the inside of the cylinder; the lower end of the connector is sealed and snapped onto the upper end of the cylinder.

[0016] Preferably, both the adjusting ring and the linkage sleeve are fitted onto the lower end of the pressing head; the liquid guide tube is located inside the connector and is coaxially arranged with the connector.

[0017] Preferably, a beaded funnel is provided at the upper end of the liquid guide tube, and a second steel ball for activating and sealing the liquid outlet of the liquid guide tube is placed inside the beaded funnel.

[0018] In summary, this invention offers the following advantages: By integrating the stroke limiting function with the main pump body structure through a built-in adjusting ring, linkage sleeve, and limiting ring forming a linkage adjusting mechanism, this invention effectively solves the problem of easy breakage of the outlet pipe caused by traditional external adjusting structures, resulting in a more robust and durable structure. Its mechanical self-locking mechanism, combining a gear shifting protrusion with densely spaced gear slots, provides a clear gear shift feel and reliable locking, effectively preventing gear drift caused by vibration or collision during use and ensuring long-term stability of the liquid output. Simultaneously, by raising the limiting ring to its highest point, the pressing head can be completely locked, forming a "zero liquid output" safety gear, fundamentally preventing accidental liquid output or leakage due to accidental touch or pressing, significantly improving portability and reliability. Furthermore, this solution requires few new parts, minimal modification to existing pump head molds, has a mature assembly process, is easy to implement, and has controllable costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a partial structural schematic diagram of the present invention.

[0021] Figure 3 yes Figure 2 Cross-sectional view.

[0022] Figure 4 yes Figure 2 Partial sectional view

[0023] Figure 5 yes Figure 2 A partial exploded view.

[0024] Figure 6 This is a cross-sectional view of the screw cap in this invention.

[0025] Figure 7 This is a partial cross-sectional view of the screw cap, linkage sleeve, and adjusting ring assembled in this invention.

[0026] In the diagram: 1. Bottle body; 2. Pressing head; 3. Screw cap; 31. Gear slot; 4. Pump body assembly; 41. Cylinder; 42. Piston; 43. First steel ball; 44. Compression spring; 45. Suction tube; 5. Connector; 51. Guide hole; 6. Linkage sleeve; 61. Gear position latch; 7. Adjusting ring; 8. Limiting ring; 81. Limiting protrusion; 9. Liquid guide tube; 91. Bead funnel; 92. Second steel ball. Detailed Implementation

[0027] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0028] See Figures 1 to 5 A daily chemical product container with a quantitative dispensing structure is mainly composed of a bottle body 1, a pressing head 2, a screw cap 3, a pump body assembly 4, a connector 5, a linkage sleeve 6, an adjusting ring 7, a limiting ring 8, and a liquid guide tube 9.

[0029] Bottle 1 is used to store liquids for daily chemical products. A screw cap 3 is threadedly connected to the opening of bottle 1. The upper end of pump assembly 4 is threadedly connected to the inside of the screw cap 3, while its lower end is movably inserted into the inside of bottle 1 for drawing and pumping liquid. Pump assembly 4 specifically includes a cylinder 41, a piston 42, a first steel ball 43, a compression spring 44, and a suction tube 45. Cylinder 41 is threadedly connected to the screw cap 3. Piston 42 is slidably disposed inside cylinder 41. First steel ball 43 is movably sealed at the liquid inlet of cylinder 41. Compression spring 44 is disposed inside cylinder 41, its upper end abutting against the lower end of piston 42 or liquid guide tube 9, and its lower end abutting against the first steel ball 43, for pushing piston 42 back to its original position after pressing. Suction tube 45 is inserted into the liquid inlet of cylinder 41 and extends to the bottom of bottle 1.

[0030] Connector 5 is fixedly snapped onto the upper end of cylinder 41 of pump body assembly 4. The lower end of the pressing head 2 has an internal space, into which the upper end of connector 5 is movably inserted, allowing the pressing head 2 to move up and down relative to connector 5. A liquid guide tube 9 is coaxially disposed inside connector 5, its upper end inserted into the pressing head 2, and its lower end passing through connector 5 and piston 42, inserting into cylinder 41 of pump body assembly 4, forming a liquid delivery channel. To prevent liquid backflow, a bead funnel 91 is provided at the upper outlet of liquid guide tube 9 (i.e., bead funnel 91 is fastened inside the upper outlet of liquid guide tube 9); a second steel ball 92 is placed inside bead funnel 91, which can slide up and down to flexibly seal the outlet of liquid guide tube 9.

[0031] The core of this invention lies in the adjustable stroke limiting mechanism, which mainly consists of a linkage sleeve 6, an adjusting ring 7, and a limiting ring 8.

[0032] The linkage sleeve 6 is rotatably disposed inside the cap 3 and is fitted onto the outer side of the neck of the connector 5. The inner wall of the linkage sleeve 6 is machined with internal threads. The limiting ring 8 engages with the internal threads of the linkage sleeve 6 through the threads on its outer wall, thus achieving a threaded connection. The inner side of the limiting ring 8 has two radially inwardly extending limiting protrusions 81. Correspondingly, two axially extending guide holes 51 are formed on the outer wall of the connector 5. When the limiting ring 8 is installed, its inner limiting protrusions 81 are inserted into the guide holes 51 of the connector 5. Since the guide holes 51 are axial straight grooves, they allow the limiting ring 8 to slide up and down on the connector 5, but completely prevent the limiting ring 8 from rotating.

[0033] The adjusting ring 7 is tightly fitted onto the upper end of the linkage sleeve 6 and is located on top of the cap 3. By rotating the adjusting ring 7, the linkage sleeve 6, which is fixed to it, can rotate together inside the cap 3.

[0034] The self-locking mechanism between the linkage sleeve 6 and the screw cap 3 is key to achieving stable adjustment. (Refer to...) Figure 6 and Figure 7 On the lower outer side of the linkage sleeve 6, four position locking protrusions 61 (which can be deformed by compression) are evenly spaced. On the inner wall of the screw cap 3, 24 position slots 31 are arranged in a ring. When the user rotates the adjusting ring 7 to rotate the linkage sleeve 6, the position locking protrusions 61 will sequentially engage with different position slots 31, producing a clear "click" sound, thus achieving rotational positioning. This combination of multiple slots (24) and fewer protrusions (4) provides precise position feel and reliable mechanical self-locking, effectively preventing accidental position drift due to vibration during use or carrying.

[0035] The working principle and quantitative discharge process of this invention are as follows:

[0036] Adjusting the dispensing volume: When the user needs to change the dispensing volume per press, rotate the adjusting ring 7 on the top of the bottle 1. The adjusting ring 7 drives the linkage sleeve 6 to rotate within the cap 3. Since the limiting ring 8 cannot rotate due to its limiting protrusion 81 engaging with the guide hole 51 of the connector 5, the rotational motion of the linkage sleeve 6 is converted into the lifting and lowering motion of the limiting ring 8 through the threaded pair. As the limiting ring 8 rises or falls, the gap between its top plane and the bottom end face of the pressing head 2 changes accordingly. This gap determines the maximum downward stroke of the pressing head 2.

[0037] Executing the press-to-dispense action: The user presses down on the press head 2. The press head 2 pushes its internal liquid guide tube 9 downwards, which in turn drives the piston 42 of the pump body assembly 4 downwards, compressing the pump chamber volume of the cylinder 41 and forcing the liquid out through the liquid guide tube 9. When the press head 2 descends to its bottom contacting the top of the limiting ring 8, the stroke is forcibly terminated, and one press action is completed. Because the downward stroke of the piston 42 (i.e., the change in pump chamber volume) is precisely limited by the limiting ring 8, the amount of liquid dispensed per press can be precisely controlled. After releasing the press head 2, under the reset action of the compression spring 44, all components return to their original positions, completing the liquid aspiration process.

[0038] Accidental Touch Prevention and Shutdown Function: By rotating the adjustment ring 7, the limit ring 8 can be adjusted to its highest position. In this position, the top of the limit ring 8 directly abuts against the bottom of the press head 2, completely restricting any downward movement of the press head 2, forming a "zero liquid discharge" shut-off position. This function effectively prevents leakage caused by accidental pressing during transportation, carrying, or accidental play by children, improving safety and portability.

[0039] In summary, this invention achieves precise adjustment of the downward stroke of the pressing head 2 through a built-in adjustment mechanism consisting of an adjusting ring 7, a linkage sleeve 6, and a limiting ring 8, thereby achieving quantitative material dispensing. Its structure integrates the adjustment function, eliminating reliance on lateral force on the liquid guide tube 9 and solving the problem of easy breakage of the liquid outlet tube in the prior art. The combination of a few position locking protrusions 61 and densely packed position slots 31 provides a clear sense of position and reliable mechanical self-locking, ensuring the stability of the liquid dispensing volume. The zero dispensing position provides additional safety protection. This design requires minimal modification to the existing pump head structure, with few newly added parts, facilitating production and cost control.

[0040] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A container for daily chemical products with a quantitative dispensing structure, characterized in that: The device includes a bottle body, a pressing head, a screw cap threaded onto the bottle body, a pump assembly with its upper end threaded into the screw cap and its lower end movably inserted into the bottle body, a connector fixedly snapped onto the upper end of the pump assembly and movably inserted into the lower end of the pressing head, a linkage sleeve rotatably disposed within the screw cap and used to fit the lower end of the pressing head, an adjusting ring tightly fitted onto the upper end of the linkage sleeve and located at the top of the screw cap, a limiting ring threaded into the linkage sleeve and used to limit the maximum downward displacement of the pressing head, and a liquid guide tube with its upper end inserted into the pressing head and its lower end inserted into the pump assembly. The connector has several guide holes on its outer wall, and the limiting ring has several limiting protrusions on its inner side for inserting into the guide holes to prevent the limiting ring from rotating. By rotating the adjusting ring, the linkage sleeve is rotated, causing the limiting ring to rise and fall, thereby changing the downward stroke of the pressing head and controlling the single dispensing volume.

2. The daily chemical product container according to claim 1, characterized in that: The inner wall of the linkage sleeve is provided with threads for driving the limit ring to move up and down, and four gear shift protrusions are provided at equal intervals on the outer side of the lower end; the inner side of the swivel cap is provided with several gear shift grooves that cooperate with the gear shift protrusions, so that when the adjusting ring is rotated, the gear shift protrusions are engaged with the gear shift grooves to achieve gear self-locking.

3. The daily chemical product container according to claim 1, characterized in that: There are 24 gear slots. The gear shifting protrusions cooperate with the gear slots to achieve rotational positioning and make a clicking sound, preventing gear drift during use.

4. The daily chemical product container according to claim 1, characterized in that: The limit ring can move upwards to completely restrict the downward movement of the pressing head, forming a zero-discharge shut-off position to prevent accidental activation and leakage.

5. The daily chemical product container according to claim 1, characterized in that: The pump body assembly includes a cylinder threaded inside a cap, a piston slidably disposed inside the cylinder, a first steel ball for movably sealing the cylinder inlet, a compression spring for pushing the piston back to its original position, and a suction tube inserted into the cylinder inlet; the upper end of the compression spring abuts against the piston or the lower end of the suction tube, and its lower end abuts against the first steel ball; the lower end of the suction tube is inserted into the piston and communicates with the inside of the cylinder; the lower end of the connector is sealed and snapped onto the upper end of the cylinder.

6. The daily chemical product container according to claim 1, characterized in that: Both the adjusting ring and the linkage sleeve are fitted onto the lower end of the pressing head; the liquid guide tube is located inside the connector and is coaxially arranged with the connector.

7. The daily chemical product container according to claim 1, characterized in that: A beaded funnel is provided at the upper end of the liquid guide tube, and a second steel ball is placed inside the beaded funnel to flexibly seal the liquid outlet of the liquid guide tube.

Images