Medicinal double-core pump

By designing a dual-core pump for pharmaceuticals, the problem of traditional press pumps only being able to operate on one medicine bottle has been solved. This allows for flexible dispensing of two different medications from the same bottle, improving ease of use and safety, while reducing resource waste and management complexity.

CN224114259UActive Publication Date: 2026-04-14BERRY ACE PACKAGING (JIAXING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional push-button pumps can only be used with one medicine bottle container, which means that multiple sets of devices are needed when different medicines need to be taken at different times, resulting in waste of resources, complexity of use, and increased safety hazards.

Method used

Design a pharmaceutical dual-core pump with two pressing pumps installed on both sides of the top of the fixed cap. The two pressing pumps can draw different liquids from the same medicine bottle. The connection stability and normal operation of the pressing components are enhanced by structures such as threaded holes, protrusions, grooves, and slots.

Benefits of technology

It enables flexible use of two different medications from the same bottle, improving ease of use, reducing resource waste and management complexity, decreasing usage and management costs, and lowering the risk of medication errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medicinal double-core pump which comprises a fixing cover, pressing pumps are connected to the two sides of the top of the fixing cover in a penetrating mode respectively, each pressing pump comprises a pump body, the top of each pump body penetrates through the fixing cover and is connected with a locking cover, a containing cavity is formed in each pump body, the bottom end of each containing cavity is connected with a liquid suction pipe, and a pressing assembly is arranged in each containing cavity. The pressing assembly comprises a pressing pipe, and the top of the pressing pipe is connected with a liquid outlet head. The lower end of the pressing pipe is connected with a piston pipe, the top of the piston pipe is sleeved with a piston, and the top of the piston is fixedly connected with the pressing pipe. The outer periphery of the piston abuts against the inner wall of the containing cavity in an attached mode. The bottom end of the piston pipe is fixedly connected with a spring, and the bottom end of the spring is fixedly connected with a ball used for sealing the containing cavity. The pressing pumps are arranged on the two sides of the top of the fixing cover respectively, the two pressing pumps can pump different liquid medicine out of the same medicine bottle, the two kinds of liquid medicine can be conveniently taken and used respectively according to use requirements, and use flexibility is improved.
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Description

Technical Field

[0001] This utility model relates to the field of press pump technology, specifically to a pharmaceutical dual-core pump. Background Technology

[0002] In the medical and pharmaceutical fields, the design of medicine bottle packaging and dispensing is of paramount importance, directly impacting the safety, convenience, and accuracy of drug use. Whether patients can obtain medication smoothly and accurately not only affects treatment outcomes but is also closely linked to patient safety. Pump dispensers, as a common dispensing device for medicine bottles, are widely used in various types of medicine bottles due to their hygienic and convenient characteristics.

[0003] In traditional designs, one pump head corresponds to only one medication bottle, meaning the pump head can only draw a single type of medication from the bottle. However, with the increasing sophistication of clinical treatments, many treatment scenarios require medications with the same effect to be taken at different times, such as daytime and nighttime doses. This necessitates patients having multiple independent medication bottles and pump heads. This results in significant resource waste and increases production and usage costs. Furthermore, the use and management of multiple devices causes considerable inconvenience for medical staff and patients, increasing the complexity of use and management, and potentially leading to medication errors due to operational mistakes, affecting treatment effectiveness and posing safety hazards.

[0004] Based on the above, this utility model proposes a pharmaceutical dual-core pump, which can effectively solve the above problems. Utility Model Content

[0005] This utility model addresses the shortcomings of the existing technology by providing a dual-core pump for pharmaceutical use.

[0006] This utility model is achieved through the following technical solution:

[0007] A pharmaceutical dual-core pump includes a fixed cover, with a pressing pump connected through both sides of the top of the fixed cover. The pressing pump includes a pump body, with a locking cover connected through the fixed cover at the top of the pump body. The pump body has an internal receiving cavity, with a suction tube connected to the bottom of the receiving cavity. A pressing assembly is located inside the receiving cavity, including a pressing tube with a dispensing head connected to its top. A piston tube is connected to the lower end of the pressing tube, and a piston is fitted around the top of the piston tube, with its top fixedly connected to the pressing tube. The outer periphery of the piston abuts against the inner wall of the receiving cavity. A spring is fixedly connected to the bottom of the piston tube, and a ball for sealing the receiving cavity is fixedly connected to the bottom of the spring.

[0008] According to the above technical solution, as a further preferred technical solution, the locking cover is provided with a threaded hole, and the liquid outlet head is provided with an external thread that mates with the threaded hole.

[0009] According to the above technical solution, as a further preferred technical solution, the top outer periphery of the pump body is provided with a plurality of protrusions with hemispherical longitudinal sections, and the inner sidewall of the locking cover is provided with a groove that cooperates with and connects to the protrusions.

[0010] According to the above technical solution, as a further preferred technical solution, the bottom of the pressing tube is provided with a groove that cooperates with the piston.

[0011] According to the above technical solution, as a further preferred technical solution, an outwardly extending flange is fixedly connected to the top outer side of the pump body, and the flange abuts against the lower surface of the fixed cover.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] This utility model provides a dual-pump pharmaceutical device. By setting two pumps on both sides of the top of the fixed cap, different liquid medicines can be drawn from the same medicine bottle. This allows for the separate use of two different liquid medicines according to usage needs, improving the flexibility of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 for Figure 2 A magnified view of part A;

[0017] Figure 4 for Figure 2 A magnified view of part B. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0019] A pharmaceutical dual-core pump includes a fixed cover 1, with a pressing pump 2 connected through both sides of the top of the fixed cover 1. The pressing pump 2 includes a pump body 21, with a locking cover 22 connected through the fixed cover 1 at the top of the pump body 21. The pump body 21 has a receiving cavity 23 inside, with a suction tube 24 connected to the bottom end of the receiving cavity 23. A pressing assembly is provided inside the receiving cavity 23, including a pressing tube 25, with a liquid outlet head 26 connected to the top of the pressing tube 25. A piston tube 27 is connected to the lower end of the pressing tube 25, and a piston 28 is sleeved on the outer side of the top of the piston tube 27. The top of the piston 28 is fixedly connected to the pressing tube 25. The outer periphery of the piston 28 is in close contact with the inner wall of the receiving cavity 23. A spring 29 is fixedly connected to the bottom end of the piston tube 27, and a ball 210 for closing the receiving cavity 23 is fixedly connected to the bottom end of the spring 29.

[0020] This invention features two pumps 2 installed on both sides of the top of the fixed cap 1. These pumps can extract different liquids from the same medicine bottle, allowing for separate dispensing of the two liquids according to usage needs and improving the flexibility of use.

[0021] Furthermore, in another embodiment, the locking cover 22 is provided with a threaded hole 221, and the liquid outlet head 26 is provided with an external thread 261 that engages with the threaded hole 221.

[0022] When not in use, the locking cap 22 and the dispensing head 26 are tightly connected together through the engagement of the threaded hole 221 and the external thread 261; when needed, the locking cap 22 and the dispensing head 26 are separated to facilitate the subsequent operation of pressing the dispensing head to squeeze out the medicine.

[0023] Furthermore, in another embodiment, the top outer periphery of the pump body 21 is provided with a plurality of protrusions 211 with hemispherical longitudinal sections, and the inner sidewall of the locking cover 22 is provided with a groove 222 that engages with and connects to the protrusions 211.

[0024] By providing the protrusion 211 and the groove 222, the connection stability between the pump body 21 and the locking cover 22 is increased, preventing the pump body 21 and the locking cover 22 from separating during use.

[0025] Furthermore, in another embodiment, the bottom of the pressing tube 25 is provided with a slot 251 that engages with the piston 28.

[0026] By setting the slot 251, the piston 28 can be firmly installed on the pressing tube 25, ensuring that there will be no relative sliding between the piston 28 and the pressing tube 25 during the pressing operation, thereby ensuring the normal operation of the pressing assembly and improving the working performance of the pressing pump.

[0027] Furthermore, in another embodiment, an outwardly extending flange 212 is fixedly connected to the top outer side of the pump body 21, and the flange 212 abuts against the lower surface of the fixed cover 1.

[0028] By setting the flange 212, the pump body 21, the locking cover 22 and the fixed cover 1 are connected in an integral structure, preventing the pump body 21 and the locking cover 22 from falling off the fixed cover 1 during use.

[0029] Based on the description and accompanying drawings of this utility model, those skilled in the art can easily manufacture or use a pharmaceutical dual-heart pump of this utility model, and can produce the positive effects described in this utility model.

[0030] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0031] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A pharmaceutical dual-core pump, characterized in that: The device includes a fixed cover (1), with a press pump (2) connected through both sides of the top of the fixed cover (1). The press pump (2) includes a pump body (21), with a locking cover (22) connected through the fixed cover (1) at the top of the pump body (21). The pump body (21) has a receiving cavity (23) inside, with a suction tube (24) connected to the bottom of the receiving cavity (23). The receiving cavity (23) has a pressing assembly inside, which includes a pressing tube (25). The top of the tube is connected to a liquid outlet head (26); the lower end of the pressing tube (25) is connected to a piston tube (27), and a piston (28) is sleeved on the outer side of the top of the piston tube (27). The top of the piston (28) is fixedly connected to the pressing tube (25); the outer periphery of the piston (28) is in close contact with the inner wall of the receiving cavity (23); a spring (29) is fixedly connected to the bottom end of the piston tube (27), and a ball (210) for closing the receiving cavity (23) is fixedly connected to the bottom end of the spring (29).

2. The pharmaceutical dual-core pump according to claim 1, characterized in that: The locking cover (22) is provided with a threaded hole (221), and the liquid outlet head (26) is provided with an external thread (261) that engages with the threaded hole (221).

3. A pharmaceutical dual-core pump according to claim 1, characterized in that: The pump body (21) has a plurality of protrusions (211) with hemispherical longitudinal sections on the outer periphery of the top, and the locking cover (22) has a groove (222) on the inner side wall that is connected to the protrusions (211).

4. A pharmaceutical dual-core pump according to claim 1, characterized in that: The bottom of the pressing tube (25) is provided with a slot (251) that is connected to the piston (28).

5. A pharmaceutical dual-core pump according to claim 1, characterized in that: The pump body (21) has an outwardly extending flange (212) fixedly connected to the top outer side, and the flange (212) abuts against the lower surface of the fixed cover (1).