Flow regulating valve and ultrafiltration device

Abstract

The utility model discloses a flow regulating valve and ultrafiltration equipment, including flange fixed base, liquid valve seat, chuck chain subassembly and drive motor, flange fixed base is provided with first connecting end and second connecting end, and first connecting end is provided with first contact surface and is located first contact surface back's first butt joint inclined surface, liquid valve seat is provided with third connecting end, and third connecting end is provided with second contact surface and is located second contact surface back's second butt joint inclined surface, and second contact surface is butt joint with first contact surface, and is provided with regulating valve core in liquid valve seat, the inside wall of chuck chain subassembly is provided with annular clamping slot, and chuck chain subassembly clamps and sets up in flange fixed base's first connecting end and liquid valve seat's third connecting end, and annular clamping slot clamps and sets up in first butt joint inclined surface and second butt joint inclined surface, drive motor installs in flange fixed base's second connecting end, and is connected with regulating valve core.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a flow regulating valve and an ultrafiltration device. Background Technology

[0002] Ultrafiltration equipment is a widely used separation and purification device in the biopharmaceutical field. Ultrafiltration equipment is equipped with flow control valves to regulate the flow rate of the separated and purified liquid, preventing excessive pressure in the equipment's pipelines. However, the existing flow control valves have a relatively complex assembly structure, which is not conducive to production assembly and subsequent maintenance and replacement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a flow regulating valve and an ultrafiltration device, which simplifies the assembly structure of the flow regulating valve and improves the reliability of the assembly.

[0004] On one hand, this utility model embodiment provides a flow regulating valve, including:

[0005] The flange fixing base is provided with a first connecting end and a second connecting end. The first connecting end is provided with a first contact surface and a first abutting slope located on the back of the first contact surface.

[0006] A liquid valve seat is provided with a third connecting end, the third connecting end is provided with a second contact surface and a second abutting inclined surface located on the back of the second contact surface, the second contact surface abuts against the first contact surface, and an adjusting valve core is provided inside the liquid valve seat;

[0007] The chuck chain assembly has an annular groove on its inner sidewall. The chuck chain assembly is engaged with the first connecting end of the flange fixing base and the third connecting end of the liquid valve seat, and the annular groove is engaged with the first abutting inclined surface and the second abutting inclined surface.

[0008] A drive motor is installed at the second connection end of the flange fixing base and is connected to the regulating valve core.

[0009] According to some embodiments of the present invention, the distance between the first abutting inclined surface and the first contact surface gradually decreases from the inside to the outside along the radial direction of the flange fixing base.

[0010] According to some embodiments of the present invention, the first contact surface is provided with one of the positioning hole and the positioning post, and the second contact surface is provided with the other of the positioning hole and the positioning post, wherein the positioning hole and the positioning post can be nested and connected to each other.

[0011] According to some embodiments of this utility model, the number of positioning holes and positioning posts is multiple sets, and the multiple sets of positioning holes and positioning posts are evenly distributed around the axis of the flange fixing base.

[0012] According to some embodiments of the present invention, the chuck chain assembly includes a first half-ring and a second half-ring, the first half-ring and the second half-ring are rotatably connected at their first ends, and the second half-ring and the second half-ring are provided with locking members at their second ends.

[0013] According to some embodiments of this utility model, the locking element is a threaded locking pin or a snap fastener.

[0014] According to some embodiments of the present invention, the annular groove is provided with a third abutting slope and a fourth abutting slope on the side wall of the first abutting slope and the second abutting slope, the third abutting slope being adapted to the first abutting slope and the fourth abutting slope being adapted to the second abutting slope.

[0015] According to some embodiments of the present invention, a movable gap is provided between the second connecting end of the flange fixing base and the chuck chain assembly, and an assembly hole is provided at the second connecting end of the flange fixing base.

[0016] According to some embodiments of the present invention, the liquid valve seat is further provided with a liquid channel, and the regulating valve core is adapted to adjust the opening degree of the liquid channel.

[0017] On the other hand, this utility model embodiment provides an ultrafiltration device, including the flow regulating valve described above.

[0018] The embodiments of this utility model have at least the following beneficial effects:

[0019] The drive motor is installed at the second connection end of the flange fixing base, and can be fixedly connected to the external structure through the flange fixing base. The first connection end of the flange fixing base is provided with a first contact surface and a first abutting slope, and the third connection end of the liquid valve seat is provided with a second contact surface and a second abutting slope. After the second contact surface and the first contact surface abut, the chuck chain assembly is locked at the first end of the flange fixing base and the third connection end of the liquid valve seat, which can quickly connect the liquid valve seat to the flange fixing base, simplifying the assembly structure of the flow regulating valve. Moreover, the annular groove of the chuck chain assembly is locked at the first abutting slope and the second abutting slope, and by continuously applying pressure to the first abutting slope and the second abutting slope, the connection between the liquid valve seat and the flange fixing base is reliable.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the flow regulating valve according to an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 A cross-sectional view of the flow control valve is shown.

[0024] Figure 3 for Figure 2 The center circle shows a magnified view of a portion at position A;

[0025] Figure 4 for Figure 1 The diagram shown is an exploded view of the flow control valve.

[0026] Figure 5 This is a schematic diagram of the structure of an ultrafiltration device according to an embodiment of the present invention.

[0027] Figure label:

[0028] Flange fixing base 100, first connecting end 110, first contact surface 111, first abutting slope 112, positioning hole 113, second connecting end 120, liquid valve seat 200, third connecting end 210, second contact surface 211, second abutting slope 212, positioning column 213, regulating valve core 220, liquid channel 221, chuck chain assembly 300, annular groove 301, third abutting slope 302, fourth abutting slope 303, movable clearance 304, first half ring 310, second half ring 320, locking element 330, drive motor 400, and push screw 410. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are 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, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 This embodiment discloses a flow regulating valve, including a flange fixing base 100, a liquid valve seat 200, a chuck chain assembly 300, and a drive motor 400. The flange fixing base 100 is provided with a first connecting end 110 and a second connecting end 120. The first connecting end 110 is provided with a first contact surface 111 and a first abutting slope 112 located on the back of the first contact surface 111. The liquid valve seat 200 is provided with a third connecting end 210. The third connecting end 210 is provided with a second contact surface 211 and a second abutting slope 212 located on the back of the second contact surface 211. The second contact surface 211 and the first contact surface 110 are connected. 1. A regulating valve core 220 is provided inside the liquid valve seat 200; the inner side wall of the chuck chain assembly 300 is provided with an annular groove 301, the chuck chain assembly 300 is engaged with the first connecting end 110 of the flange fixing base 100 and the third connecting end 210 of the liquid valve seat 200, and the annular groove 301 is engaged with the first abutting inclined surface 112 and the second abutting inclined surface 212; the drive motor 400 is installed on the second connecting end 120 of the flange fixing base 100 and is connected to the regulating valve core 220, for example, the drive motor 400 is connected to the push screw 410 and is connected to the regulating valve core 220 through the push screw 410.

[0034] With the above scheme, since the contact surfaces of the first abutting inclined surface 112 and the second abutting inclined surface 212 are inclined, the annular groove 301 of the chuck chain assembly 300 forms an automatic centering design with the first abutting inclined surface 112 and the second abutting inclined surface 212. This enables the flange base and the liquid valve seat 200 to be quickly aligned and assembled, reducing the repeated calibration steps required when tightening fasteners such as bolts. The liquid valve seat 200 and the flange fixing base 100 can be initially assembled in a non-fully aligned state. Then, the alignment adjustment and locking of the liquid valve seat 200 and the flange fixing base 100 are performed by the snapping of the chuck chain assembly 300. Furthermore, the first abutting inclined surface 112 and the second abutting inclined surface 212 can form a wedge-shaped locking structure. When the pressure between the first contact surface 111 and the second contact surface 211 increases, the pressure between the first contact surface 111 and the second contact surface 211 will be converted into radial compressive force on the first abutting inclined surface 112 and the second abutting inclined surface 212, enabling the chuck chain assembly 300 to further lock the liquid valve seat 200 and the flange fixing base 100, thereby improving the reliability of the assembly. The chuck chain assembly 300 is a non-welded structure, and during subsequent maintenance, the chuck chain assembly 300 can be disassembled to replace the liquid valve seat 200, which improves the convenience of maintenance.

[0035] In use, the drive motor 400 is installed on the second connecting end 120 of the flange fixing base 100, and can be fixedly connected to the external structure through the flange fixing base 100. The first connecting end 110 of the flange fixing base 100 is provided with a first contact surface 111 and a first abutting slope 112. The third connecting end 210 of the liquid valve seat 200 is provided with a second contact surface 211 and abutting slope 212. After the second contact surface 211 and the first contact surface 111 abut, the chuck chain assembly 300 is engaged. The liquid valve seat 200 can be quickly connected to the flange fixing base 100 at the first end of the flange fixing base 100 and the third connecting end 210 of the liquid valve seat 200, which simplifies the assembly structure of the flow regulating valve. Moreover, the annular groove 301 of the chuck chain assembly 300 is engaged with the first abutting slope 112 and the second abutting slope 212. By continuously applying pressure to the first abutting slope 112 and the second abutting slope 212, the liquid valve seat 200 and the flange fixing base 100 can be reliably connected.

[0036] Please refer to Figure 2The figure shows a cross-sectional view of the flange fixing base 100 and its radial direction. As can be seen from the figure, the first abutting inclined surface 112 and the first contact surface 111 are two non-parallel surfaces. The distance between the first abutting inclined surface 112 and the first contact surface 111 gradually decreases from the inside to the outside along the radial direction of the flange fixing base 100. When the first abutting inclined surface 112 of the flange fixing base 100 is subjected to a radially inward force, the first abutting inclined surface 112 can decompose the force into a first component force along the radial direction and a second component force along the axial direction. The second component force can cause the flange fixing base 100 to tend to move towards the liquid valve seat 200, making the first contact surface 111 and the second contact surface 211 more closely contacted. Similarly, the distance between the second abutting inclined surface 212 and the second contact surface 211 gradually decreases from the inside to the outside along the radial direction of the liquid valve seat 200. Under the snapping action of the chuck chain assembly 300, the connection between the liquid valve seat 200 and the flange fixing base 100 can be made tighter and more reliable.

[0037] Please refer to Figure 2 , Figure 3 and Figure 4 In some application examples, the first contact surface 111 is provided with one of the positioning holes 113 and the positioning pin 213, and the second contact surface 211 is provided with the other of the positioning holes 113 and the positioning pin 213, which can be nested together. During assembly, the positioning holes 113 and the positioning pin 213 can serve as coarse positioning between the first contact surface 111 and the second contact surface 211. In some application examples, there are multiple sets of positioning holes 113 and positioning pins 213, which are evenly distributed around the axis of the flange fixing base 100. For example, there are two sets of positioning holes 113 and positioning pins 213, which are evenly distributed around the axis of the flange fixing base 100 and can serve as positioning during the assembly of the first contact surface 111 and the second contact surface 211. There are also examples of three or four or more sets of positioning holes 113 and positioning pins 213.

[0038] Please refer to Figure 4The chuck chain assembly 300 includes a first half-ring 310 and a second half-ring 320. The first ends of the first half-ring 310 and the second half-ring 320 are rotatably connected, and the second ends of the first half-ring 310 and the second half-ring 320 are provided with locking elements 330. The first half-ring 310 and the second half-ring 320 adopt a rotatably connected opening and closing structure, which allows the first half-ring 310 and the second half-ring 320 to be easily engaged with the liquid valve seat 200 and the flange fixing base 100 during assembly. The locking elements 330 are used to lock the first half-ring 310 and the second half-ring 320, so that pressure is applied to the first abutting inclined surface 112 and the second abutting inclined surface 212 through the positioning hole 113, thereby realizing the connection between the liquid valve seat 200 and the flange fixing base 100. The locking element 330 is a threaded locking pin or a snap fastener. For example, when the locking element 330 is a threaded locking pin, the threaded locking pin can thread-connect the first half-ring 310 and the second half-ring 320, gradually clamping the liquid valve seat 200 and the flange fixing base 100. The clamping degree between the first half-ring 310 and the second half-ring 320 can be adjusted according to the actual situation. Alternatively, when the locking element 330 is a snap-fit ​​element, the snap-fit ​​element can directly snap the first half-ring 310 and the second half-ring 320 together, improving the convenience of assembly. The annular grooves 301 are distributed on the first half-ring 310 and the second half-ring 320 to snap the liquid valve seat 200 and the flange fixing base 100 together.

[0039] Please refer to Figure 3 The annular groove 301 is connected to the side wall of the first abutting slope 112 and the second abutting slope 212, and is provided with a third abutting slope 302 and a fourth abutting slope 303. The third abutting slope 302 is adapted to the first abutting slope 112, and the fourth abutting slope 303 is adapted to the second abutting slope 212. For example, when the annular groove 301 is engaged with the liquid valve seat 200 and the flange fixing base 100, the third abutting slope 302 and the fourth abutting slope 303 form a guide opening, which facilitates the guiding engagement with the first abutting slope 112 and the second abutting slope 212 during the engagement process, and facilitates the connection between the annular groove 301 and the liquid valve seat 200 and the flange fixing base 100.

[0040] Please refer to Figure 2 A movable gap 304 is provided between the second connecting end 120 of the flange fixing base 100 and the chuck chain assembly 300, and the second connecting end 120 of the flange fixing base 100 is provided with an assembly hole. For example, during assembly, the flange fixing base 100 is connected to the external structure through the assembly hole, realizing the installation of the flange fixing base on the external structure, improving the convenience of assembly. The movable gap 304 allows the locking member 330 of the chuck chain assembly 300 to have a certain amount of room to move, which facilitates assembly and subsequent maintenance and disassembly, and helps to improve the convenience of assembly and maintenance.

[0041] Please refer to Figure 1and Figure 2 The liquid valve seat 200 is also provided with a liquid channel 221, which is used to connect to an external pipeline. The regulating valve core 220 is adapted to adjust the opening and closing degree of the liquid channel 221. A pressure sensor is installed on the external pipeline to detect the liquid pressure of the external pipeline. The sensor works with the drive motor 400 to drive the regulating valve core 220 to adjust the opening and closing degree of the liquid channel 221, thereby adjusting the pressure of the external pipeline. This prevents the pressure of the external pipeline from being too high or too low, meets the usage requirements, and prevents concurrent failures caused by excessive pressure in the external pipeline.

[0042] Please refer to Figure 5 This embodiment also provides an ultrafiltration device, including the flow regulating valve described above. The specific structure of the flow regulating valve can be referred to above and will not be repeated here. The drive motor 400 is mounted on the second connection end 120 of the flange fixing base 100, and can be fixedly connected to other structures (such as the housing) of the ultrafiltration device through the flange fixing base 100. The first connection end 110 of the flange fixing base 100 is provided with a first contact surface 111 and a first abutting slope 112. The third connection end 210 of the liquid valve seat 200 is provided with a second contact surface 211 and a second abutting slope 212. The second contact surface 211 and the first contact surface 111... After contact, the chuck chain assembly 300 is engaged at the first end of the flange fixing base 100 and the third connecting end 210 of the liquid valve seat 200, which can quickly connect the liquid valve seat 200 to the flange fixing base 100, simplifying the assembly structure of the flow control valve. Moreover, the annular groove 301 of the chuck chain assembly 300 is engaged at the first abutting inclined surface 112 and the second abutting inclined surface 212. By continuously applying pressure to the first abutting inclined surface 112 and the second abutting inclined surface 212, the liquid valve seat 200 and the flange fixing base 100 can be reliably connected.

[0043] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A flow regulating valve, characterized in that, include: The flange fixing base (100) is provided with a first connecting end (110) and a second connecting end (120). The first connecting end (110) is provided with a first contact surface (111) and a first abutting slope (114) located on the back of the first contact surface (111). A liquid valve seat (200) is provided with a third connecting end (210), the third connecting end (210) is provided with a second contact surface (211) and a second abutting inclined surface (212) located on the back of the second contact surface (211), the second contact surface (211) abuts against the first contact surface (111), and a regulating valve core (220) is provided inside the liquid valve seat (200). The chuck chain assembly (300) has an annular groove (301) on its inner sidewall. The chuck chain assembly (300) is engaged with the first connecting end (110) of the flange fixing base (100) and the third connecting end (210) of the liquid valve seat (200). The annular groove (301) is engaged with the first abutting slope (114) and the second abutting slope (212). A drive motor (400) is installed on the second connection end (120) of the flange fixing base (100) and connected to the regulating valve core (220).

2. The flow regulating valve according to claim 1, characterized in that, The distance between the first abutting inclined surface (114) and the first contact surface (111) gradually decreases from the inside to the outside along the radial direction of the flange fixing base (100).

3. The flow regulating valve according to claim 1, characterized in that, The first contact surface (111) is provided with one of the positioning hole (112) and the positioning post (113), and the second contact surface (211) is provided with the other of the positioning hole (112) and the positioning post (113), and the positioning hole (112) and the positioning post (113) can be nested and connected to each other.

4. The flow regulating valve according to claim 3, characterized in that, The number of the positioning holes (112) and the positioning pins (113) is multiple sets, and the multiple sets of positioning holes (112) and positioning pins (113) are evenly distributed around the axis of the flange fixing base (100).

5. The flow regulating valve according to any one of claims 1 to 4, characterized in that, The chuck chain assembly (300) includes a first half-ring (310) and a second half-ring (320), the first half-ring (310) and the second half-ring (320) are rotatably connected at their first ends, and the second half-ring (310) and the second half-ring (320) are provided with locking members (330) at their second ends.

6. The flow regulating valve according to claim 5, characterized in that, The locking element (330) is a threaded locking pin or a snap fastener.

7. The flow regulating valve according to claim 1 or 6, characterized in that, The annular groove (301) is connected to the side wall of the first abutting slope (114) and the second abutting slope (212) and is provided with a third abutting slope (302) and a fourth abutting slope (303). The third abutting slope (302) is adapted to the first abutting slope (114) and the fourth abutting slope (303) is adapted to the second abutting slope (212).

8. The flow regulating valve according to claim 1 or 6, characterized in that, A movable gap (304) is provided between the second connecting end (120) of the flange fixing base (100) and the chuck chain assembly (300), and an assembly hole is provided at the second connecting end (120) of the flange fixing base (100).

9. The flow regulating valve according to claim 1, characterized in that, The liquid valve seat (200) is also provided with a liquid channel (221), and the regulating valve core (220) is adapted to adjust the opening degree of the liquid channel (221).

10. An ultrafiltration device, characterized in that, Includes the flow regulating valve as described in any one of claims 1 to 9.

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