A new type of peristaltic pump head

Abstract

The application discloses a novel peristaltic pump head, which comprises a roller assembly rotatably installed between a body and a lower support, a pressing block support is arranged above the lower support and is slidably connected with the body in the vertical direction, the roller assembly is located between the lower support and the pressing block support, an upper turnover cover is movably buckled at one end of the pressing block support away from the body, the upper turnover cover is pivotally connected with the body, and the upper turnover cover is turned upward or downward at the pivotally connected position with the body under external force, so that the upper turnover cover drives the pressing block support to slide on the body in the vertical direction. The application is convenient for opening and closing the upper pressing block and facilitates the assembly and disassembly of the elastic conveying hose. The application is suitable for the technical field of peristaltic pumps.

Description

Technical Field

[0001] The present invention belongs to the technical field of peristaltic pumps, and in particular relates to a novel peristaltic pump head. Background Art

[0002] The working principle of a peristaltic pump is to pump fluid by alternately squeezing and releasing the pump's elastic delivery hose. Currently, when installing or replacing the elastic delivery hose, or performing maintenance on the peristaltic pump, the upper pressure block of existing peristaltic pumps needs to be removed to facilitate subsequent operations. However, the upper pressure blocks of common peristaltic pumps on the market are extremely inconvenient to install, disassemble, and open and close, which can easily lead to improper installation or component damage during installation and disassembly. Therefore, there is an urgent need for a peristaltic pump head that allows for easy opening and closing of the upper pressure block, facilitating the installation and disassembly of the elastic delivery hose. Summary of the Invention

[0003] The invention provides a novel peristaltic pump head, which is used for making the upper pressing block easy to open and close, and facilitating the assembly and disassembly of the elastic conveying hose.

[0004] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0005] A new type of peristaltic pump head includes a roller assembly with both ends rotatably installed between the main body and the lower support, a pressure block support is provided above the lower support and is vertically connected to the main body for sliding, the roller assembly is located between the lower support and the pressure block support, and an upper flip cover is movably fastened to the end of the pressure block support away from the main body, the upper flip cover is pivotally connected to the main body, and the upper flip cover has the ability to flip upward or downward along the pivot point with the main body under external force, so that the upper flip cover drives the pressure block support to slide vertically on the main body.

[0006] Furthermore, two positioning posts are symmetrically provided on the inner sides of both ends of the upper flip cover, and positioning holes are respectively opened on both sides of the main body at positions corresponding to the positioning posts. The positioning posts are assembled in the corresponding positioning holes, and the upper flip cover can rotate 0-180° under external force through the assembly of the positioning posts and the positioning holes.

[0007] Furthermore, downwardly extending slideways are symmetrically constructed on both sides of the pressure block support, downwardly guiding slide grooves are constructed on both sides of the body and at positions corresponding to the slideways, and the slides are slidably assembled in the corresponding slide grooves.

[0008] Furthermore, two guide posts are symmetrically provided on the inner side of the upper flip cover, and guide grooves are respectively opened at positions corresponding to the guide posts on both sides of the pressure block support, and the guide posts are slidably assembled in the corresponding guide grooves.

[0009] Furthermore, an upper pressing block is installed on the surface of the pressing block support corresponding to the roller assembly, and the top of the upper pressing block is connected to the pressing block support via an adjusting component.

[0010] Furthermore, the adjustment assembly includes a universal coupling assembled between the upper pressure block and the pressure block support, an adjustment screw threadedly connected to the upper end of the universal coupling is connected to the upper end of the pressure block support, the lower part of the universal coupling is connected to the connecting shaft, and the connecting shaft extends laterally from both ends of the upper pressure block.

[0011] Furthermore, a spring is sleeved on the outer surface of the universal joint, and two ends of the spring extend into the corresponding surfaces of the pressure block support and the upper pressure block respectively.

[0012] Furthermore, adjustable pipe clamp assemblies are respectively installed on both sides of the lower support and at the hose passage.

[0013] Furthermore, the adjustable pipe clamp assembly includes a sliding pipe clamp that is slidably assembled at the corresponding hose passage port, an adjusting roller is connected to the lower end of the sliding pipe clamp via a roller shaft, an operating port is opened on the lower support and located at the adjusting roller, and a portion of the outer periphery of the adjusting roller extends through the operating port.

[0014] Furthermore, a hose specification mark is marked on the lower support and located at the hose passage, and a pointer pointing horizontally to the hose specification mark is provided on the sliding pipe clamp.

[0015] Due to the adoption of the above-mentioned structure, the technical progress achieved by the present invention compared with the prior art is that: the operator installs the hose into the internal cavity of the pump head, and an effective gap is formed between the roller assembly of the present invention and the upper pressure block. The motor drives the connecting mechanism and drives the roller assembly to rotate, so that the roller squeezes the hose and finally transfers the liquid from one end of the hose to the other end; during the installation of the hose or maintenance operations, the opening and closing of the upper pressure block is completed by the upper flip cover. When it is necessary to open the upper pressure block, the upper flip cover is pulled upward, and the upper flip cover drives the pressure block support to move upward together, so that the pressure block support opens. The upper flip cover is pulled in the opposite direction, and the pressure block support completes the closing action; therefore, the present invention is simple and quick to operate, and is convenient for the installation and disassembly of the hose and the maintenance of the peristaltic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached figure:

[0018] Figure 1 An exploded diagram of the structure of an embodiment of the present invention;

[0019] Figure 2for Figure 1 Structural diagram from another angle;

[0020] Figure 3 This is an axial structural cross-sectional view of an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the local structure of an embodiment of the present invention.

[0022] Marked parts: 100-roller assembly, 200-body, 201-positioning hole, 202-slide, 300-pressure block support, 301-upper pressure block, 302-slide, 303-guide groove, 400-lower support, 401-operation port, 402-hose specification identification, 403-hose passage, 500-upper flip cover, 501-positioning column, 502-guide column, 600-adjustment component, 601-connecting shaft, 602-universal coupling, 603-adjusting screw, 604-spring, 700-adjustable pipe clamp assembly, 701-sliding pipe clamp, 702-adjusting roller, 703-pointer. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0024] The present invention discloses a novel peristaltic pump head, such as Figure 1-3As shown, it includes a main body 200, a lower support 400, a pressure block support 300 and a roller assembly 100, wherein both ends of the roller assembly 100 are rotatably installed between the main body 200 and the lower support 400, the pressure block support 300 is arranged above the lower support 400, the pressure block support 300 is slidably connected to the main body 200, and the pressure block support 300 can slide on the main body 200 in the vertical direction, the roller assembly 100 is located between the lower support 400 and the pressure block support 300, and an upper flip cover 500 is movably fastened at the end of the pressure block support 300 away from the main body 200, and the upper flip cover 500 is pivotally connected to the main body 200. Under external force, the upper flip cover 500 has the ability to flip upward or downward along the pivot point between it and the main body 200, so that the upper flip cover 500 drives the pressure block support 300 to slide vertically on the main body 200. The working principle and advantages of the present invention are as follows: the operator installs the hose into the internal cavity of the pump head, and an effective gap is formed between the roller assembly 100 of the present invention and the upper pressure block 301. The motor drives the connecting mechanism and drives the roller assembly 100 to rotate, so that the roller squeezes the hose and finally transfers the liquid from one end of the hose to the other end; during the installation of the hose or maintenance operations, the opening and closing of the upper pressure block 301 is completed by the upper flip cover 500. When it is necessary to open the upper pressure block 301, the upper flip cover 500 is pulled upward, and the upper flip cover 500 drives the pressure block support 300 to move upward together, so that the pressure block support 300 is opened. When the upper flip cover 500 is pulled in the opposite direction, the pressure block support 300 completes the closing action; therefore, the present invention is simple and quick to operate, and is convenient for the assembly and disassembly of the hose and the maintenance of the peristaltic pump.

[0025] As a preferred embodiment of the present invention, Figure 1-2As shown, two positioning posts 501 are symmetrically disposed on the inner sides of both ends of the upper cover 500. Positioning holes 201 are provided on both sides of the body 200. The two positioning holes 201 are respectively provided at positions corresponding to the positioning posts 501. The positioning posts 501 are assembled into the corresponding positioning holes 201. The upper cover 500 rotates 0-180° under external force due to the assembly of the positioning posts 501 and the positioning holes 201. In this embodiment, downwardly extending slideways 302 are symmetrically constructed on both sides of the pressure block support 300. Downward-guiding slideways 202 are constructed on both sides of the body 200 at positions corresponding to the slideways 302. The slideways 302 slide into the corresponding slideways 202. In this embodiment, two guide posts 502 are symmetrically disposed on the inner side of the upper cover 500. Guide grooves 303 are provided on both sides of the pressure block support 300 at positions corresponding to the guide posts 502. The guide posts 502 slide into the corresponding guide grooves 303. The working principle of this embodiment is as follows: the operator pushes the upper flip cover 500 upward, and the guide column 502 of the upper flip cover 500 drives the pressure block support 300 to move upward together, so that the pressure block support 300 slides upward in the vertical direction on the main body 200, and finally completes the opening action; if the upper flip cover 500 is pushed in the opposite direction, the pressure block support 300 slides downward in the vertical direction and completes the closing action.

[0026] As a preferred embodiment of the present invention, Figure 2-3As shown, an upper pressure block 301 is mounted on the surface of the pressure block support 300 corresponding to the roller assembly 100. The top of the upper pressure block 301 is connected to the pressure block support 300 via an adjustment assembly 600. The adjustment assembly 600 includes a universal coupling 602 assembled between the upper pressure block 301 and the pressure block support 300. An adjustment screw 603 is connected to the upper end of the pressure block support 300 and is threadedly connected to the upper end of the universal coupling 602. The lower portion of the universal coupling 602 is connected to a connecting shaft 601, which extends laterally from both ends of the upper pressure block 301. A spring 604 is sheathed around the universal coupling 602, with its ends extending into the corresponding surfaces of the pressure block support 300 and the upper pressure block 301, respectively. The operating principle of this embodiment is as follows: The top adjustment screw 603 of the upper pressure block 301 can adjust the upper pressure block 301's vertical position. The operator rotates the adjustment screw 603 clockwise to move the upper pressure block 301 upward, while rotating it counterclockwise to move it downward. This adjusts the gap between the upper pressure block 301 and the roller assembly 100. Combined with the elastic force of the spring 604 on the upper pressure block 301, the pressure applied to the hose is ultimately adjusted. The upper pressure block 301 adjusts its position relative to the roller assembly 100 via the adjustment screw 603, thereby adjusting the pressure gap to accommodate a wider range of hose sizes. The universal joint 602 compensates for the angle between the adjustment screw 603 and the upper pressure block 301 as the upper pressure block 301 rotates about its axis. The spring 604 on the upper pressure block 301 is self-adaptive, extending the service life of the hose.

[0027] As a preferred embodiment of the present invention, Figure 2 、 Figure 4 As shown, an adjustable pipe clamp assembly 700 is mounted on each side of the lower support 400, located at the hose passage 403. The adjustable pipe clamp assembly 700 includes a sliding pipe clamp 701 that is slidably mounted at the corresponding hose passage 403. An adjustment roller 702 is connected to the lower end of the sliding pipe clamp 701 via a roller shaft. An operating port 401 is provided on the lower support 400, located at the adjustment roller 702, and a portion of the outer periphery of the adjustment roller 702 extends through the operating port 401. In this embodiment, a hose specification indicator 402 is marked on the lower support 400, located at the hose passage 403. A pointer 703 is provided on the sliding pipe clamp 701, pointing horizontally to the hose specification indicator 402. The operating principle of this embodiment is as follows: By rotating the adjustment roller 702, the operator rotates the roller shaft, causing the sliding pipe clamp 701 to move up and down along the axial direction of the roller shaft, thereby adjusting the tightness of the compression tube at both ends of the pump head. Since the sliding pipe clamp 701 and the lower support 400 of this embodiment have hose specification markings 402 , the position of the sliding pipe clamp 701 can be adjusted according to the markings, so that the clamping force can be accurately adjusted to be appropriate.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A new type of peristaltic pump head, characterized by: The cam is provided with a plurality of rollers, each of which is rotatably mounted between the main body and the lower support, and a pressure block support is provided above the lower support, and the roller assembly is located between the lower support and the pressure block support, and an upper flip cover is movably fastened to the end of the pressure block support away from the main body, and the upper flip cover is pivotally connected to the main body, and the upper flip cover has the ability to flip upward or downward along the pivot point between the upper flip cover and the main body under external force, so as to form the upper flip cover driving the pressure block support to slide vertically on the main body; an upper pressure block is installed on the surface corresponding to the pressure block support and the roller assembly, and the top of the upper pressure block is connected to the pressure block support via an adjusting component; the adjusting component includes a universal joint assembled between the upper pressure block and the pressure block support A shaft joint, an adjusting screw threadedly connected to the upper end of the universal coupling is connected to the upper end of the pressure block support, the lower part of the universal coupling is connected to the connecting shaft, and the connecting shaft extends laterally from the two ends of the upper pressure block; a spring is sleeved on the outer surface of the universal coupling, and the two ends of the spring respectively extend into the corresponding surfaces of the pressure block support and the upper pressure block; adjustable pipe clamp assemblies are respectively installed on both sides of the lower support and at the hose passage; the adjustable pipe clamp assembly includes a sliding pipe clamp slidably assembled at the corresponding hose passage, an adjusting roller is connected to the lower end of the sliding pipe clamp via a roller shaft, an operating port is opened on the lower support and at the adjusting roller, and a peripheral part of the adjusting roller extends through the operating port.

2. A new peristaltic pump head according to claim 1, characterized in that: Two positioning posts are symmetrically provided on the inner sides of both ends of the upper flip cover, and positioning holes are respectively opened on both sides of the body at positions corresponding to the positioning posts. The positioning posts are assembled in the corresponding positioning holes, and the upper flip cover can rotate 0-180° under external force through the assembly of the positioning posts and the positioning holes.

3. A new peristaltic pump head according to claim 1, characterized in that: The two sides of the pressure block support are symmetrically configured with downwardly extending slideways, and the two sides of the body and positions corresponding to the slideways are configured with downwardly directed slide grooves, and the slideways are slidably assembled in the corresponding slide grooves.

4. A new peristaltic pump head according to claim 1, characterized in that: Two guide posts are symmetrically arranged on the inner side of the upper flip cover, and guide grooves are respectively opened at positions corresponding to the guide posts on both sides of the pressure block support, and the guide posts are slidably assembled in the corresponding guide grooves.

5. A new peristaltic pump head according to claim 1, characterized in that: A hose specification mark is marked on the lower support and located at the hose passage, and a pointer pointing horizontally to the hose specification mark is provided on the sliding pipe clamp.

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