Anti-crystallization and anti-leakage ceramic metering pump

Abstract

The utility model discloses a ceramic metering pump capable of preventing crystallization and liquid leakage. The ceramic metering pump comprises a pump body, a rotary valve, a metering rod and a sealing assembly, one end of the rotary valve is arranged in one end of the pump body and used for controlling the flowing direction of liquid medicine. One end of the metering rod is arranged in the other end of the pump body, is matched with the rotary valve and is used for pushing the liquid medicine to flow; the two ends of the pump body are each provided with two inner grooves. The sealing assemblies are arranged in the inner grooves in the two ends of the pump body and used for sealing the rotary valve and the metering rod. The inner grooves in the two ends of the ceramic pump body are designed to be in a specific groove shape so that the sealing rings can be tightly attached and form effective sealing, when the rotary valve and the metering rod move, the sealing rings can move along with the rotary valve and the metering rod and keep a sealing state, and therefore liquid medicine leakage and crystallization caused by contact between the liquid medicine and air are prevented; the ceramic metering pump device can remarkably reduce the risk of liquid leakage and effectively prevent liquid medicine from crystallizing, so that the phenomenon that the pump is stuck is reduced, and the working efficiency and stability of the pump are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metering pumps, in particular to a crystallization-proof and liquid-leakage-proof ceramic metering pump. Background Art

[0002] The current ceramic pumps in the industry ensure sealing through tiny gaps. The disadvantage of this structure is that the gap will cause the liquid to flow out along the ceramic rod, especially when the filling speed is fast and the pressure in the pump is high. The pressurized liquid will flow out through the gap, causing leakage. Even in the absence of pressure, the liquid will adhere to the ceramic rod, causing the ceramic rod to carry out the liquid during reciprocating motion. The carried-out liquid will come into contact with the air, causing some of the liquid to crystallize on the ceramic rod. Since the cavity and the ceramic rod of the ceramic pump are fitted with a tiny gap, these crystals will get stuck in the gap, further causing more serious pump jams. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a crystallization-proof and liquid-leakage-proof ceramic metering pump.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model provides a crystallization-proof and liquid-leakage-proof ceramic metering pump, which is characterized by comprising: a pump body, a rotary valve, a metering rod, and a sealing component;

[0006] One end of the rotary valve is arranged in one end of the pump body, and is used to control the flow direction of the liquid medicine;

[0007] One end of the metering rod is arranged in the other end of the pump body and cooperates with the rotary valve to promote the flow of the liquid medicine;

[0008] Two inner grooves are provided at both ends of the pump body; the sealing components are arranged in the inner grooves at both ends of the pump body and are used for sealing the rotary valve and the metering rod.

[0009] Preferably, the pump body consists of a stainless steel body and a ceramic body placed in the stainless steel body.

[0010] Preferably, the inner grooves are provided at both the upper and lower ends of the ceramic body.

[0011] Preferably, a cavity is provided in the ceramic body, and one end of the rotary valve and one end of the metering rod are both placed in the cavity and in contact with the inner wall of the ceramic body.

[0012] Preferably, the sealing component is configured as a sealing ring, and can follow the movement of the rotary valve and the metering rod to maintain a sealed state, thereby preventing leakage and crystallization of the drug solution.

[0013] Preferably, the rotary valve and the metering rod are both made of ceramic.

[0014] The technical solution of the utility model has the following beneficial effects:

[0015] The inner grooves at both ends of the ceramic pump body of the utility model are designed with specific groove shapes to ensure that the sealing ring can fit tightly and form an effective seal. When the rotary valve and the metering rod move, the sealing ring can follow the movement and maintain a sealed state, thereby preventing leakage of the drug solution and crystallization caused by contact with the air; the ceramic metering pump device can significantly reduce the risk of leakage, effectively prevent the drug solution from crystallizing, thereby reducing the occurrence of pump sticking and improving the working efficiency and stability of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 Cross-sectional view of AA. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] 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.

[0020] 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise expressly specified or limited, a first feature is “on” or “below” a second feature.

[0023] “Under” 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, the first feature being “above”, “above”, and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “under”, “below”, and “below” the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0024] Reference Figure 1 to Figure 2 The utility model provides a crystallization-proof and liquid-leakage-proof ceramic metering pump, comprising: a pump body 1, a rotary valve 3, a metering rod 4, and a sealing assembly 5;

[0025] One end of the rotary valve 3 is disposed inside one end of the pump body 1 to control the flow direction of the liquid medicine. The design of the rotary valve 3 is crucial to ensure accurate metering of the liquid medicine.

[0026] One end of the metering rod 4 is arranged in the other end of the pump body 1 and cooperates with the rotary valve 3 to promote the flow of the liquid medicine and achieve accurate metering; the materials of the rotary valve 3 and the metering rod 4 are both set to ceramics, and the wear resistance of ceramics helps to improve the service life of the pump;

[0027] Two inner grooves are provided at both ends of the pump body 1; the sealing assembly 5 is arranged in the inner grooves at both ends of the pump body, tightly fitting with the inner wall of the inner groove, and is used to seal the rotary valve 3 and the metering rod 4 to prevent the liquid medicine from leaking and contacting with the air, thereby avoiding the occurrence of crystallization and pump jamming.

[0028] Furthermore, the pump body 1 is composed of a stainless steel body and a ceramic body 2 placed in the stainless steel body. The pump body 1 is made of stainless steel and ceramic materials, which ensures the strength and corrosion resistance of the pump body 1. At the same time, the wear resistance of the ceramic material helps to improve the service life of the pump. The pump body 1 is also provided with a liquid inlet and a liquid outlet. The upper and lower ends of the ceramic body 2 are provided with the inner groove, wherein the inner groove is designed with a specific groove shape to ensure that the sealing ring can fit tightly and form an effective seal. A cavity is provided in the ceramic body 2, and one end of the rotary valve 3 and one end of the metering rod 4 are both placed in the cavity and in contact with the inner wall of the ceramic body 2. The sealing assembly 5 is configured as a sealing ring, and can follow the movement of the rotary valve 3 and the metering rod 4 to maintain a sealed state, thereby preventing leakage and crystallization of the liquid medicine.

[0029] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A crystallization-proof and liquid-leakage-proof ceramic metering pump, characterized in that: include: Pump body, rotary valve, metering rod, sealing assembly; One end of the rotary valve is arranged in one end of the pump body, and is used to control the flow direction of the liquid medicine; One end of the metering rod is arranged in the other end of the pump body and cooperates with the rotary valve to promote the flow of the liquid medicine; Two inner grooves are provided at both ends of the pump body; the sealing components are arranged in the inner grooves at both ends of the pump body and are used for sealing the rotary valve and the metering rod.

2. The anti-crystallization and anti-leakage ceramic metering pump according to claim 1, characterized in that: The pump body consists of a stainless steel body and a ceramic body arranged in the stainless steel body.

3. The anti-crystallization and anti-leakage ceramic metering pump according to claim 2, characterized in that: The inner grooves are provided at both the upper and lower ends of the ceramic body.

4. The anti-crystallization and anti-leakage ceramic metering pump according to claim 3, characterized in that: A cavity is arranged in the ceramic body, and one end of the rotary valve and one end of the metering rod are both placed in the cavity and in contact with the inner wall of the ceramic body.

5. The anti-crystallization and anti-leakage ceramic metering pump according to claim 4, characterized in that: The sealing component is configured as a sealing ring, and can follow the movement of the rotary valve and the metering rod to maintain a sealed state, thereby preventing leakage and crystallization of the drug solution.

6. The anti-crystallization and anti-leakage ceramic metering pump according to claim 5, characterized in that: The materials of the rotary valve and the metering rod are both ceramic.

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