Anti-crystallization plunger

Abstract

The utility model relates to the technical field of plungers, in particular to an anti-crystallization plunger which comprises a pipe sleeve, installation blocks are fixedly connected to the four corners of the two ends of the pipe sleeve, a movable through groove is formed in the end of one end of the pipe sleeve in a penetrating mode, a conveying through groove is formed in the end of the other end of the pipe sleeve in a penetrating mode, and a movable cavity is formed in an inner cavity of the pipe sleeve. A plunger rod is arranged in an inner cavity of the movable cavity, one end of the plunger rod penetrates through the pipe sleeve through the movable through groove and extends out of the pipe sleeve, liquid brought in can be collected and flows back into the material storage box, and therefore crystals are not prone to being formed on the surface of the material storage box, normal use of the material storage box is guaranteed, and the service life of the material storage box is prolonged. And moreover, the end surface can be heated, so that crystallization of residual low-temperature liquid on the end surface due to low temperature caused by frequent contact with the low-temperature liquid is avoided, and the normal use of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plungers, in particular to an anti-crystallization plunger. Background Art

[0002] A plunger is a device or device used in a variety of industrial and medical applications. It is a movable part that can be used to seal a pipe or section of a pipeline to allow fluid or gas to flow through the rest of the pipeline. Plungers are typically made of durable materials such as metal or plastic and can be customized for specific applications. They are used in a variety of settings, including chemical processing plants, pharmaceutical equipment, and medical devices such as syringes. Plunger design and operation can vary, but generally it is placed in a pipe or section of a pipeline and helps create a seal with the sealing material in contact with it. A plunger can be used to control the flow of fluids or gases by moving it to change the volume of a pipe. A plunger is a simple, yet effective device that is widely used in many different applications and is a key component of many industrial and medical devices.

[0003] The application of plungers is very extensive, but they still have some shortcomings. Since they are frictionally sliding structures with the sleeve, there is a gap between them. When they reciprocate, a small amount of liquid may penetrate into the gap between the sleeve and the sleeve, so it is easy to form crystals on their surface, thus affecting their normal use. In addition, since their end faces are frequently in contact with liquid, when transporting cryogenic liquids, the cryogenic liquid remaining on their end faces may crystallize due to the low temperature, thus affecting their normal use. Therefore, an anti-crystallization plunger is proposed to address the above problems. Summary of the invention

[0004] The purpose of the utility model is to provide an anti-crystallization plunger, which can collect the liquid brought in and return it to the storage box when it reciprocates and drives a small amount of liquid to penetrate into the gap between the pipe sleeve. Therefore, it is not easy to form crystals on its surface to ensure its normal use, and the liquid brought in can be recycled and reused. Moreover, its end face can be heated to avoid frequent contact with low-temperature liquid and the low-temperature liquid remaining on the end face will not crystallize due to the low temperature, thereby ensuring its normal use and solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A crystallization prevention plunger comprises a sleeve, wherein four corners of the ends of both ends of the sleeve are fixedly connected with mounting blocks, an end of one end of the sleeve is provided with a movable through groove, an end of the other end of the sleeve is provided with a conveying through groove, an inner cavity of the sleeve is provided with an movable chamber, the inner cavity of the movable chamber is provided with a plunger rod, one end of the plunger rod passes through the sleeve through the movable through groove and extends to the outside of the sleeve, a sealing assembly is provided on the other end of the plunger rod, a liquid guide groove is provided on the bottom wall of the movable chamber, and a return material assembly is provided below the sleeve.

[0007] Preferably, the sealing assembly comprises a connector fixedly connected to one end of the plunger rod, a sealing head is fixedly connected to the end of the connector away from the plunger rod, and a mounting groove is provided on the outer surface of the sealing head.

[0008] Preferably, a sealing ring is sleeved on the outer surface of the sealing head, and a mounting clamp ring is integrally formed on the inner surface of the sealing ring. The mounting clamp ring and the mounting groove are arranged to correspond in position and have matching specifications.

[0009] Preferably, a heating groove is provided in the inner cavity of the sealing head away from the connecting head on one side thereof, and a resistance heating tube is provided in the inner cavity of the heating groove.

[0010] Preferably, the return material assembly includes a return material pipe fixedly connected to the bottom wall of the tube sleeve, the return material pipe and the liquid guiding groove are arranged in corresponding positions and the return material pipe is connected to the active chamber through the liquid guiding groove.

[0011] Preferably, the bottom end of the return pipe is connected to a material extraction pump, the output end of the material extraction pump is connected to a material guide pipe, and one end of the material guide pipe away from the material extraction pump is externally connected to a material storage box.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the movable groove is provided to provide a basis for the movement of the plunger rod, the conveying groove is provided to draw liquid into the movable chamber and convey it when the plunger rod reciprocates, the movable chamber is provided to provide space for the movement of the plunger rod and provide a temporary storage space for the liquid, the plunger rod is provided to reciprocate through an external driving structure, and the space at the end of the movable chamber is formed into a vacuum in cooperation with the sealing component, so that the liquid is drawn into the end space of the movable chamber and conveyed, the sealing component has excellent sealing effect and heating ability, can avoid frequent contact with low-temperature liquid and cause the low-temperature liquid remaining on the end surface to crystallize due to the low temperature, thereby ensuring its normal use, and the return material component is provided to collect the liquid brought in and return it to the storage box when the plunger rod reciprocates and drives a small amount of liquid to penetrate into the gap between the pipe sleeve, so that it is not easy to form crystals on its surface to ensure its normal use, and the liquid brought in can also be recycled and reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the sealing head of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the sealing ring of the utility model;

[0017] Figure 4 This is a front view of the sealing assembly of the utility model;

[0018] Figure 5 It is a schematic diagram of the internal structure of the sealing head of the utility model.

[0019] In the figure: 1. pipe sleeve; 2. mounting block; 3. movable through groove; 4. conveying through groove; 5. movable chamber; 6. plunger rod; 7. connecting head; 8. sealing head; 9. mounting slot; 10. sealing ring; 11. mounting snap ring; 12. heating slot; 13. resistance heating tube; 14. liquid guide slot; 15. return pipe; 16. suction pump; 17. material guide pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0022] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] A crystallization prevention plunger comprises a sleeve 1, wherein mounting blocks 2 are fixedly connected at the four corners of the ends of both ends of the sleeve 1, a movable through groove 3 is penetrated through the end of one end of the sleeve 1, a conveying through groove 4 is penetrated through the end of the other end of the sleeve 1, an movable chamber 5 is formed in the inner cavity of the sleeve 1, a plunger rod 6 is provided in the inner cavity of the movable chamber 5, one end of the plunger rod 6 penetrates the sleeve 1 through the movable through groove 3 and extends to the outside of the sleeve 1, a sealing assembly is provided on the other end of the plunger rod 6, a liquid guide groove 14 is provided on the bottom wall of the movable chamber 5, and a return material assembly is provided below the sleeve 1.

[0025] The sealing assembly includes a connector 7 fixedly connected to one end of the plunger rod 6, a sealing head 8 is fixedly connected to the end of the connector 7 away from the plunger rod 6, a mounting groove 9 is provided on the outer surface of the sealing head 8, a sealing ring 10 is sleeved on the outer surface of the sealing head 8, a mounting clamp ring 11 is integrally formed on the inner surface of the sealing ring 10, the mounting clamp ring 11 and the mounting clamp ring 11 are arranged in corresponding positions and matching specifications with the mounting groove 9, a heating groove 12 is provided on the side of the inner cavity of the sealing head 8 away from the connector 7, a resistance heating tube 13 is provided in the inner cavity of the heating groove 12, the sealing assembly can cooperate with the reciprocating plunger rod 6 to form a vacuum in the space at the end of the active chamber 5, thereby drawing the liquid to the end space of the active chamber 5 and transporting it, the sealing assembly has excellent sealing effect and heating capability, and can avoid frequent The low-temperature liquid remaining on the end surface is contacted with the low-temperature liquid and crystallized due to the low temperature, thereby ensuring its normal use; the return material component includes a return material pipe 15 fixedly connected to the bottom wall of the pipe sleeve 1, the return material pipe 15 and the liquid guide groove 14 are arranged in a corresponding position and the return material pipe 15 is connected with the active chamber 5 through the liquid guide groove 14, the bottom end of the return material pipe 15 is connected with a suction pump 16, the output end of the suction pump 16 is connected with a guide pipe 17, and the end of the guide pipe 17 away from the suction pump 16 is externally connected to a storage box, the return material component can collect the brought-in liquid and return it to the storage box when the plunger rod 6 reciprocates and drives a small amount of liquid to penetrate into the gap of the pipe sleeve 1, so it is not easy to form crystals on its surface to ensure its normal use, and the brought-in liquid can also be recycled and reused.

[0026] Working process: an end of the plunger rod 6 close to the movable groove 3 is externally connected to a driving structure to make the plunger rod 6 reciprocate. When the plunger rod 6 is withdrawn toward the movable groove 3, a vacuum is formed in the end space of the movable chamber 5 through the sealing component, and the liquid in the external storage box is drawn in. When the plunger rod 6 is pushed outward toward the conveying groove 4, the liquid drawn into the movable chamber 5 is squeezed out and conveyed through the sealing component. This reciprocating cycle is repeated to achieve the purpose of conveying the liquid. The sealing head 8 and its peripheral sealing ring 10 can provide excellent sealing performance and minimize the penetration of liquid into the gap of the pipe sleeve 1. The sealing head 8 and the sealing ring 10 can provide a certain connection strength through the mutual clamping of the mounting groove 9 and the mounting clamp ring 11, and the latter can be reused. Other means are used to fix the sealing head 8 and the sealing ring 10, so that the structural stability is better and more durable. The resistance heating tube 13 has heating capacity, which can avoid frequent contact with low-temperature liquid and the low-temperature liquid remaining on the end face of the sealing head 8 from crystallizing due to the low temperature, thereby ensuring its normal use. The return component can collect the brought-in liquid and return it to the storage box when the plunger rod 6 reciprocates and drives a small amount of liquid to penetrate into the gap of the pipe sleeve 1. Therefore, it is not easy to form crystals on its surface to ensure its normal use, and the brought-in liquid can also be recycled and reused. The brought-in liquid will be introduced into the return pipe 15 through the liquid guide groove 14, and the brought-in liquid will be returned to the external storage box through the guide pipe 17 by the suction pump 16 for reuse.

[0027] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-crystallization plunger, comprising a sleeve (1), characterized in that: The four corners of the ends of the two ends of the pipe sleeve (1) are fixedly connected with mounting blocks (2); a movable through groove (3) is formed through the end of one end of the pipe sleeve (1); a conveying through groove (4) is formed through the end of the other end of the pipe sleeve (1); an movable chamber (5) is formed in the inner cavity of the pipe sleeve (1); a plunger rod (6) is provided in the inner cavity of the movable chamber (5); one end of the plunger rod (6) passes through the pipe sleeve (1) through the movable through groove (3) and extends to the outside of the pipe sleeve (1); a sealing assembly is provided on the other end of the plunger rod (6); a liquid guide groove (14) is formed on the bottom wall of the movable chamber (5); and a return material assembly is provided below the pipe sleeve (1).

2. The anti-crystallization plunger according to claim 1, characterized in that: The sealing assembly comprises a connecting head (7) fixedly connected to one end of the plunger rod (6); a sealing head (8) is fixedly connected to the end of the connecting head (7) away from the plunger rod (6); and a mounting groove (9) is provided on the outer surface of the sealing head (8).

3. The anti-crystallization plunger according to claim 2, characterized in that: The outer surface of the sealing head (8) is sleeved with a sealing ring (10), and the inner surface of the sealing ring (10) is integrally formed with a mounting snap ring (11), and the mounting snap ring (11) and the mounting slot (9) are arranged in a corresponding position and with matching specifications.

4. The anti-crystallization plunger according to claim 2, characterized in that: A heating groove (12) is provided on a side of the inner cavity of the sealing head (8) away from the connecting head (7), and a resistance heating tube (13) is provided in the inner cavity of the heating groove (12).

5. The anti-crystallization plunger according to claim 1, characterized in that: The return material assembly comprises a return material pipe (15) fixedly connected to the bottom wall of the pipe sleeve (1), the return material pipe (15) and the liquid guide groove (14) being arranged in corresponding positions, and the return material pipe (15) is connected to the active chamber (5) through the liquid guide groove (14).

6. The anti-crystallization plunger according to claim 5, characterized in that: The bottom end of the return pipe (15) is connected to a material extraction pump (16), the output end of the material extraction pump (16) is connected to a material guide pipe (17), and one end of the material guide pipe (17) away from the material extraction pump (16) is externally connected to a material storage box.

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