Thermoplastic pinch valve

Abstract

The utility model belongs to the technical field of sterile pipeline disconnection, and discloses a thermoplastic pinch valve. Comprising a shell, and the shell is provided with a pipeline containing groove for containing a pipeline; the shell further comprises a heat-resisting end and a heating end which are oppositely arranged, the heat-resisting end and the heating end are located on the two opposite sides of the pipeline containing groove respectively, and the heating end is connected with a driving part to drive the heating end to do linear telescopic motion in the direction away from or close to the heat-resisting end; the heating end runs to contact with the heat-resistant end to be in a closed state, so that thermoplastic sealing is realized, and the heating end is separated from the heat-resistant end to be in an open state. The thermoplastic pipe sealing machine is simple in structure, the pipeline is arranged in the pipeline containing groove, thermoplastic sealing of the pipeline can be achieved by starting the driving part, connection between the pipeline and the pipeline is cut off manually after sealing, and compared with a thermoplastic pipe sealing machine in the current market, operation is more convenient and faster.

Description

Technical Field

[0001] The utility model belongs to the technical field of aseptic pipeline disconnection and relates to a thermoplastic pinch pipe valve. Background Art

[0002] In the medical and pharmaceutical fields, it is sometimes necessary to disconnect the silicone tube pipes and liquid storage bags on medical equipment. Usually, the place where the pipe needs to be disconnected needs to be covered with a sterile disconnect ring or a sterile disconnector. Apply pressure to the place where the silicone tube is covered by the sterile disconnect ring. The sterile disconnect ring is generally a metal ring. The metal ring is clamped by taking advantage of the fact that the metal is not easy to rebound after deformation. Then the silicone tube in the metal ring is deformed accordingly. That is, after the metal ring is compressed, the pipes on both sides of the metal ring are disconnected, and then the metal ring is cut to complete the sterile sealing disconnection of the silicone tube. For some products that are sensitive to metal, the sterile disconnect ring will affect the activity of the product. Sterile connectors can ensure sterility, but the cost is expensive and it is a disposable consumable. This method will increase costs.

[0003] Another method is to use a thermoplastic tube sealing machine. The thermoplastic tube sealing machine is very large in size. Especially on the filling equipment, after the original liquid is filled, it is necessary to manually support the heat sealing of the pipeline. Not only is the purchase cost high, but it is also inconvenient to operate. Utility Model Content

[0004] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a thermoplastic pinch valve which is easy to operate and saves costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thermoplastic pinch tube valve, comprising a shell, the shell having a pipeline receiving groove for placing the pipeline; the shell also comprises a heat-resistant end and a heating end arranged oppositely, the heat-resistant end and the heating end are respectively located on opposite sides of the pipeline receiving groove, the heating end is connected to a driving part, driving the heating end to perform linear telescopic movement in a direction away from or close to the heat-resistant end; the heating end moves until it contacts the heat-resistant end to form a closed state, realizing thermoplastic sealing, and is separated from the heat-resistant end to form an open state.

[0006] According to the utility model, further, the driving part includes a motor and a reducer connected to the motor, the output shaft of the reducer is connected to the heating end, and the extension and retraction of the output shaft of the reducer drives the heating end to approach or move away from the heat-resistant end.

[0007] According to the utility model, further, the driving part includes an electromagnet and a spring connected to the electromagnet, the other end of the spring is connected to the heating end, and a magnetic metal is provided on the surface of the heating end facing the electromagnet to form an electromagnetic force between the heating end and the electromagnet.

[0008] According to the utility model, further, the heat-resistant end is made of a material that is resistant to high temperatures and is not easily deformed when subjected to force.

[0009] According to the utility model, further, the heating end is made of a fast heat transfer material.

[0010] According to the utility model, further, the heating end is made of copper, 304 stainless steel or 316 stainless steel.

[0011] According to the utility model, further, the driving unit controls the contact time between the heating end and the heat-resistant end.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the thermoplastic tube clamp valve has a simple structure, and the pipeline is placed in the pipeline receiving groove, and the driving part is started to achieve thermoplastic sealing of the pipeline. After sealing, the connection between the two is manually cut off. Compared with the thermoplastic tube sealing machine currently on the market, the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a first embodiment of a thermoplastic pinch valve of the utility model;

[0014] Figure 2 It is a structural schematic diagram of a second embodiment of a thermoplastic pinch tube valve of the utility model.

[0015] In the figure: 1-heat-resistant end, 2-heating end, 3-spring, 4-electromagnet, 5-housing, 51-first installation chamber, 52-second installation chamber, 521-pipeline receiving groove, 6-reducer, 7-motor. DETAILED DESCRIPTION

[0016] 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.

[0017] Example 1

[0018] like Figure 1As shown, this embodiment provides a thermoplastic pinch valve: comprising a housing 5, the housing 5 having a first installation chamber 51 for installing a driving unit and a second installation chamber 52 communicating with the first installation chamber 51, the outer surface of the second installation chamber 52 is provided with a pipeline receiving groove 521 for placing the pipeline, the cross section of the pipeline receiving groove 521 is circular, and the heat-resistant end 1 and the heating end 2 are respectively arranged on opposite sides of the outer circumference of the pipeline receiving groove 521, one end of the heating end 2 is connected to the driving unit installed in the first installation chamber 51, and the driving unit drives the heating end 2 to move away from or close to the heat-resistant end 1. The pipeline is placed in the pipeline receiving groove 521, the driving unit drives the heating end 2 to approach the heat-resistant end 1 until it contacts, and the pipeline placed in the pipeline receiving groove 521 is flattened radially until it is sealed, and the driving unit then drives the heating end 2 to move in a direction away from the heat-resistant end 1, and the pipeline is manually taken out, and the separation of the pipeline and the bag is achieved with the help of cutting tools such as scissors and pliers.

[0019] Specifically, the heating end 2 uses a medium with fast heat transfer and high hardness, generally copper, 304 stainless steel or 316 stainless steel, which can conduct heat quickly and bring greater extrusion force to ensure the sealing effect. The heating end 2 is connected to the external control unit, which provides heat to it and controls its heating temperature and heating time. At the same time, it is electrically connected to the driving unit. After the heating time is reached, the signal is transmitted to the driving unit, and the driving unit drives the heating end 2 away from the heat-resistant end 1. The external control unit is a prior art and will not be described here.

[0020] Specifically, the heat-resistant end 1 is made of a material that can withstand high temperatures and is not easily deformed when subjected to force, such as a high-temperature alloy, preferably an iron-based or nickel-based high-temperature alloy.

[0021] Specifically, the driving unit includes a motor 7 and a reducer 6 connected to the motor 7, and the output shaft of the reducer 6 is connected to the heating end 2. Preferably, the reducer 6 and the heating end 2 are connected by a flange or other mechanical connector (not shown in the figure), and the connection between the two is achieved. The external control unit controls the start and stop of the motor 7 and the extension and retraction of the output shaft of the reducer 6. The extension and retraction of the output shaft of the reducer 6 drives the heating end 2 away from or close to the heat-resistant end 1.

[0022] Example 2

[0023] This embodiment provides a thermoplastic pinch valve, the structure and position relationship of the housing 5, the heat-resistant end 1 and the heating end 2 are the same as those in Embodiment 1, and will not be described again.

[0024] Specifically, Figure 2As shown, the driving part includes an electromagnet 4 and a spring 3 connected to the electromagnet 4, wherein the surface of the heating end 2 facing the electromagnet 4 is provided with a metal with magnetic attraction properties for achieving adsorption with the electromagnet 4, and the other end of the spring 3 is fixedly connected to the heating end 2. When the electromagnet 4 is powered on, an electromagnetic force is formed between the electromagnet 4 and the metal with magnetic attraction properties provided on the bottom surface of the heating end 2, and the electromagnet 4 overcomes the elastic force of the spring 3 and moves toward the heating end 2, pushing the heating end 2 to move toward the heat-resistant end 1; after the electromagnet 4 is powered off, the electromagnet 4 drives the heating end 2 away from the heat-resistant end 1 under the elastic force of the spring 3.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] 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. A thermoplastic pinch valve, characterized in that: The utility model comprises a shell having a pipeline receiving groove for placing the pipeline; the shell also comprises a heat-resistant end and a heating end which are arranged opposite to each other, the heat-resistant end and the heating end are respectively located on the opposite sides of the pipeline receiving groove, the heating end is connected with a driving part, and drives the heating end to perform a linear telescopic movement in a direction away from or close to the heat-resistant end; the heating end moves until it contacts with the heat-resistant end to be in a closed state, so as to realize thermoplastic sealing, and is separated from the heat-resistant end to be in an open state.

2. A thermoplastic pinch valve according to claim 1, characterized in that: The driving part includes a motor and a reducer connected to the motor, the output shaft of the reducer is connected to the heating end, and the extension and retraction of the output shaft of the reducer drives the heating end to approach or move away from the heat-resistant end.

3. A thermoplastic pinch valve according to claim 1, characterized in that: The driving part includes an electromagnet and a spring connected to the electromagnet, the other end of the spring is connected to the heating end, and a magnetic metal is arranged on the surface of the heating end facing the electromagnet to form an electromagnetic force between the heating end and the electromagnet.

4. A thermoplastic pinch valve according to claim 1, characterized in that: The heat-resistant end is made of a material that is resistant to high temperatures and is not easily deformed when subjected to force.

5. A thermoplastic pinch valve according to claim 1, characterized in that: The heating end is made of fast heat transfer material.

6. A thermoplastic pinch valve according to claim 5, characterized in that: The heating end is made of copper, 304 stainless steel or 316 stainless steel.

7. A thermoplastic pinch valve according to claim 2 or 3, characterized in that: The driving part controls the contact time between the heating end and the heat-resistant end.

Images