A pump device for dripping pills

Abstract

The present invention provides a pump body device for dripping pills, and relates to the technical field of pharmaceutical equipment. The pump body device includes a body and a valve stem assembly. The body is provided with a liquid passage, and a first switch passage, a second switch passage and a quantitative passage connected to the liquid passage. The valve stem assembly includes a first switch rod, a second switch rod and a quantitative rod, and the first switch rod, the second switch rod and the quantitative rod are respectively movable up and down and are arranged in the first switch passage, the second switch passage and the quantitative passage. In addition, the first switch rod is provided with a first liquid passage section, and the second switch rod is provided with a second liquid passage section. When the first liquid passage section is located in the liquid passage, the second switch rod cuts off the liquid passage, and the quantitative rod moves upward, the pump body device will extract a solution from the outside. When the first switch rod cuts off the liquid passage, the second liquid passage section is located in the liquid passage, and the quantitative rod moves downward to a quantitative height, the pump body device will discharge a quantitative solution from the liquid outlet.

Description

Technical Field

[0001] The invention relates to the technical field of pharmaceutical equipment, and in particular to a pump device for dripping pills. Background Art

[0002] Soft capsules are very popular in the international pharmaceutical market due to their excellent sealing properties, good appearance and easy portability.

[0003] Among them, the supply accuracy of the drug solution and the glue solution directly affects the accuracy of the drug dosage of the capsule and the thickness of the rubber. In the prior art, in order to ensure the supply accuracy of the drug solution and the glue solution, a pump device with a complex structure and its control system are often used. However, such pump devices are often expensive and difficult to maintain and repair. In view of this, the inventors proposed this application after studying the existing technology. Summary of the invention

[0004] The invention provides a pump device for dripping pills, aiming to improve the problem that the pump device for dripping pills in the prior art has a complex structure and is inconvenient to maintain and repair.

[0005] In order to solve the above technical problems, the present invention provides a pump device for dripping pills, comprising:

[0006] The body is provided with a liquid passage, and a first switch channel, a second switch channel and a quantitative channel which are respectively substantially perpendicular and connected to the liquid passage; the quantitative channel is located between the first switch channel and the second switch channel, and the liquid passage is provided with a liquid inlet and a liquid outlet which are connected to the outside;

[0007] A valve stem assembly, comprising a first switch rod, a second switch rod and a quantitative rod, wherein the first switch rod is movably disposed in the first switch channel, the second switch rod is movably disposed in the second switch channel, the quantitative rod is movably disposed in the quantitative channel, the first switch rod is provided with a first liquid passing section, and the second switch rod is provided with a second liquid passing section;

[0008] The first switch rod and the second switch rod can respectively cut off the liquid passage; the solution located in the liquid passage can pass through the first liquid passage section to pass through the first switch rod; the solution located in the liquid passage can pass through the second liquid passage section to pass through the second switch rod.

[0009] As a further optimization, the first liquid-passing section is a section of a cylinder having a smaller diameter than the first switch channel, and the second liquid-passing section is a section of a cylinder having a smaller diameter than the second switch channel.

[0010] As a further optimization, the first liquid passing section is provided with an annular groove centered on the central axis of the first switch rod, and the second liquid passing section is provided with an annular groove centered on the central axis of the second switch rod.

[0011] As a further optimization, the first switch channel and the second switch channel are through holes respectively penetrating the body, and the quantitative channel is a blind hole arranged in the body.

[0012] As a further optimization, the liquid inlet is exposed at the side of the body, and the liquid outlet is exposed at the bottom of the body.

[0013] As a further optimization, a fixing hole for fixing the body is provided at the bottom of the body.

[0014] As a further optimization, the main body is a rectangular geometric body; the first switch channel, the second switch channel and the quantitative channel are channels respectively arranged roughly vertically on the main body; and the liquid passage channel is a channel arranged roughly horizontally on the main body.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] 1. The pump body device for dripping pills of the present invention not only has a simple structure, but also can accurately control the amount of liquid output by the pump body device each time. Specifically, the valve stem assembly can drive the first switch rod, the second switch rod and the metering rod to move up and down respectively through a cam and other mechanisms. When the first liquid section of the first switch rod is located in the liquid passage, the second switch rod cuts off the outlet of the liquid passage, and the metering rod moves upward to a quantitative height, the pump body device will draw a quantitative solution from the outside through the liquid inlet. When the first switch rod cuts off the inlet of the liquid passage, the second liquid section of the second switch rod is located in the liquid passage, and the metering rod moves downward to a quantitative height, the pump body device will discharge a quantitative solution from the liquid outlet. Through the above-mentioned control method, the purpose of quantitative liquid supply of the pump body device of the present invention can be achieved.

[0017] 2. The pump body device of the present invention has a first liquid passage section provided with an annular groove centered on the central axis of the first switch rod, and a second liquid passage section provided with an annular groove centered on the central axis of the second switch rod. The structure of the annular groove not only allows the solution to pass through the first switch rod and the second switch rod, but also facilitates processing and precision control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the pump body device and the cam device and their matching according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the pump body device and the cam device and their matching according to an embodiment of the present invention (the pump body device is in a cross-section state);

[0021] Figure 3 It is a schematic diagram of the exploded structure of a pump device according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic structural diagram of a pump device in a first state according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic structural diagram of a pump device in a second state according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the first axial structure of the main body according to an embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the second axis side of the main body in one embodiment of the present invention;

[0026] Markings in the figure:

[0027] 100-pump body device; 200-cam device;

[0028] 110-body; 111-liquid passage; 112-first switch passage; 113-second switch passage; 114-quantitative passage; 115-fixing hole; 1111-liquid inlet; 1112-liquid outlet;

[0029] 120 - valve stem assembly; 121 - first switch stem; 122 - second switch stem; 123 - quantitative stem; 1211 - first liquid flow section; 1221 - second liquid flow section. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0036] Depend on Figure 3 , Figure 4 and Figure 5 As shown, the present embodiment is a pump body device for dripping pills, comprising a body 110 and a valve stem assembly 120. Specifically:

[0037] The body 110 is provided with a liquid passage 111, and a first switch channel 112, a second switch channel 113 and a quantitative channel 114 which are respectively substantially perpendicular and connected to the liquid passage 111. The quantitative channel 114 is located between the first switch channel 112 and the second switch channel 113; and the connection between the first switch channel 112 and the liquid passage 111 is located upstream of the connection between the second switch channel 113 and the liquid passage 111. In addition, the liquid passage 111 is provided with a liquid inlet 1111 for inputting an external solution, and a liquid outlet 1112 for outputting a solution.

[0038] The valve stem assembly 120 includes a first switch stem 121, a second switch stem 122 and a quantitative stem 123. The first switch stem 121 is movably disposed in the first switch channel 112, the second switch stem 122 is movably disposed in the second switch channel 113, and the quantitative stem 123 is movably disposed in the quantitative channel 114. The first switch stem 121 is provided with a first liquid passage section 1211 for solution to pass through, and the second switch stem 122 is provided with a second liquid passage section 1221 for solution to pass through.

[0039] The specific working principle is as follows:

[0040] like Figure 4As shown, when the pump body device 100 needs to extract a fixed amount of external solution: the first switch rod 121 is controlled to move upward along the first switch channel 112, so that the first liquid passage section 1211 is located in the liquid passage 111; the second switch rod 122 is controlled to move downward along the second switch channel 113, so that the second switch rod 122 cuts off the liquid passage 111; and the quantitative rod 123 is controlled to move upward along the quantitative channel 114 to a preset height. At this time, during the upward movement of the quantitative rod 123, negative pressure is formed inside the liquid passage 111, so the solution is extracted from the outside through the liquid inlet 1111.

[0041] like Figure 5 As shown, when the pump body device 100 needs to quantitatively supply liquid to the outside: the first switch rod 121 is controlled to move downward along the first switch channel 112, and the first switch rod 121 cuts off the liquid passage 111; the second switch rod 122 is controlled to move upward along the second switch channel 113, so that the second liquid passage section 1221 is located in the liquid passage 111; and the quantitative rod 123 is controlled to move downward along the quantitative channel 114 to a preset height. At this time, during the downward movement of the quantitative rod 123, the pressure inside the liquid passage 111 will increase, and the solution will be discharged to the outside through the liquid outlet 1112.

[0042] It should be noted that, since the quantitative rod 123 moves to a specific height during the process of extracting solution from the outside and supplying solution to the outside, the volume of the liquid passage 111 enclosed by the first switch rod 121, the second switch rod 122 and the quantitative rod 123 is constant during each process of extracting solution from the outside and supplying solution to the outside, thereby ensuring that the pump body device 100 can quantitatively supply solution to the outside each time.

[0043] In addition, in this embodiment, the first switch rod 121, the second switch rod 122 and the quantitative rod 123 are sealed with the first switch channel 112, the second switch channel 113 and the quantitative channel 114 respectively. In the actual operation process, the first switch rod 121, the second switch rod 122 and the quantitative rod 123 can be a columnar body made of a flexible sealing material. Or a sealing sleeve made of a flexible sealing material is sleeved on the surface of the first switch rod 121, the second switch rod 122 and the quantitative rod 123. Or an annular sealing ring is sleeved on the surface of the first switch rod 121, the second switch rod 122 and the quantitative rod 123.

[0044] Depend on Figure 3As shown, in this embodiment, the first liquid-passing section 1211 is provided with an annular groove centered on the central axis of the first switch rod 121, and the second liquid-passing section 1221 is provided with an annular groove centered on the central axis of the second switch rod 122. The first liquid-passing section 1211 and the second liquid-passing section 1221 with annular groove structures can not only allow the solution to smoothly pass through the first switch rod 121 and the second switch rod 122, but also the annular grooves are not only easy to process in the actual processing process, but also easy to control the accuracy. In another embodiment, the first liquid-passing section 1211 is a section of a cylinder with a diameter smaller than the first switch channel 112, and the second liquid-passing section 1221 is a section of a cylinder with a diameter smaller than the second switch channel 113. Or in another embodiment, the first liquid-passing section 1211 and the second liquid-passing section 1221 are both provided with a gap for the solution to pass through.

[0045] Depend on Figure 3 , Figure 6 and Figure 7 As shown, in this embodiment, the body 110 is a rectangular geometric body, wherein the first switch channel 112 and the second switch channel 113 are through holes that penetrate the body 110 from top to bottom, respectively, the quantitative channel 114 is a blind hole arranged in the body 110 from top to bottom, and the liquid passage channel 111 is a channel arranged roughly horizontally in the body 110. The liquid inlet 1111 is exposed at the side of the body 110, and the liquid outlet 1112 is exposed at the bottom of the body 110, and the liquid inlet 1111 and the liquid outlet 1112 are both provided with connecting threads so as to be connected with pipelines. In addition, in this embodiment, the bottom of the body 110 is also provided with a threaded fixing hole 115 for fixing the body 110.

[0046] In addition, when the pump body device 100 of this embodiment is working, the up and down movement of the valve stem assembly 120 needs to be controlled by other driving mechanisms. Specifically:

[0047] Depend on Figure 1 and Figure 2 As shown, in this embodiment, during the preparation of the drop pills, the supply of the drug solution and the glue solution are respectively provided by two independent pump devices 100, and the two pump devices 100 are respectively driven by a cam device 200. Each cam device 200 is provided with three cams corresponding to the first switch rod 121, the second switch rod 122 and the quantitative rod 123, and the different motion states of the valve stem assembly 120 are controlled by the three cams.

[0048] Through the above scheme of this embodiment, the pump device 100 of this case only consists of a pump body, a first switch rod 121, a second switch rod 122 and a quantitative rod 123. Compared with other liquid supply devices for dripping pills in the prior art, the pump device 100 of this case is not only simple in structure, but also can accurately control the amount of liquid output by the pump device 100 each time.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pump device for dripping pills, characterized in that: The invention comprises: a body (110) provided with a liquid passage (111), and a first switch channel (112), a second switch channel (113) and a quantitative channel (114) which are respectively substantially perpendicular to and connected to the liquid passage (111); the quantitative channel (114) is located between the first switch channel (112) and the second switch channel (113); the liquid passage (111) is provided with a liquid inlet (1111) and a liquid outlet (1112) which are connected to the outside; a valve stem assembly (120) comprising a first switch rod (121), a second switch rod (122) and a quantitative rod (123); the first switch rod (121) can move up and down The first switch channel (112) is configured; the second switch rod (122) is configured to be movable up and down in the second switch channel (113); the quantitative rod (123) is configured to be movable up and down in the quantitative channel (114); the first switch rod (121) is provided with a first liquid passing section (1211); the second switch rod (122) is provided with a second liquid passing section (1221); the first switch rod (121) and the second switch rod (122) can both cut off the liquid passing channel (111); the solution in the liquid passing channel (111) can pass through the first liquid passing section (1211) to pass through the first switch rod (121); The solution in the liquid-passing channel (111) can pass through the second liquid-passing section (1221) to pass through the second switch rod (122).

2. A pump device for dripping pills according to claim 1, characterized in that The first liquid-passing section (1211) is a section of a cylinder having a smaller diameter than the first switch channel (112), and the second liquid-passing section (1221) is a section of a cylinder having a smaller diameter than the second switch channel (113).

3. A pump device for dripping pills according to claim 1, characterized in that The first liquid-passing section (1211) is provided with an annular groove centered on the central axis of the first switch rod (121), and the second liquid-passing section (1221) is provided with an annular groove centered on the central axis of the second switch rod (122).

4. A pump device for dripping pills according to claim 1, characterized in that The first switch channel (112) and the second switch channel (113) are through holes respectively penetrating the body (110), and the quantitative channel (114) is a blind hole arranged in the body (110).

5. A pump device for dripping pills according to claim 1, characterized in that The liquid inlet (1111) is exposed at the side of the main body (110), and the liquid outlet (1112) is exposed at the bottom of the main body (110).

6. A pump device for dripping pills according to claim 1, characterized in that The bottom of the body (110) is provided with a fixing hole (115) for fixing the body (110).

7. A pump device for dripping pills according to claim 1, characterized in that The main body (110) is a rectangular geometric body; the first switch channel (112), the second switch channel (113) and the quantitative channel (114) are channels respectively arranged approximately vertically on the main body (110); and the liquid passage channel (111) is a channel arranged approximately horizontally on the main body (110).

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