Linear high-precision peristaltic pump

Abstract

The invention relates to the technical field of peristaltic pumps, and discloses a linear high-precision peristaltic pump which comprises a mounting plate, a peristaltic pump shell fixedly mounted at the bottom of the mounting plate and a machining assembly arranged at the bottom of the mounting plate, and the machining assembly comprises an adjusting mechanism mounted at the bottom of the mounting plate. A machining mechanism is mounted at the bottom of the mounting plate and connected with an adjusting mechanism, an auxiliary mechanism is mounted on the inner wall of the peristaltic pump shell and connected with the adjusting mechanism, and the adjusting mechanism comprises a two-way threaded rod. And one end of the two-way threaded rod is rotationally mounted on the inner wall of the peristaltic pump shell through a bearing. Most peristaltic pumps in the prior art adopt rotary structures, so that the problems of low flow control precision and poor long-time working stability exist.

Description

Technical Field

[0001] The invention relates to the technical field of peristaltic pumps, in particular to a linear high-precision peristaltic pump. Background Art

[0002] Peristaltic pump is a commonly used positive displacement pump, which consists of three parts: driver, pump head and hose. It realizes fluid delivery by compressing and releasing the hose. The working principle of peristaltic pump is similar to squeezing the hose with fingers. As the fingers move, negative pressure is formed in the tube, and the liquid flows accordingly. In the peristaltic pump, rollers replace fingers, and the fluid is pumped by alternately squeezing and releasing the elastic delivery hose of the pump tube. Peristaltic pump has many advantages, including no pollution (the fluid only contacts the pump tube, not the pump body), high precision, low shear force (suitable for conveying shear-sensitive and highly corrosive fluids), good sealing and self-priming ability, simple maintenance (no valves and seals), dry operation and bidirectional delivery capability, so a linear high-precision peristaltic pump is also used; Most peristaltic pumps in the prior art adopt a rotary structure, which has the problems of low flow control accuracy and poor long-term working stability. Therefore, it is necessary to design a linear high-precision peristaltic pump to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a linear high-precision peristaltic pump to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a linear high-precision peristaltic pump, comprising a mounting plate, A peristaltic pump housing fixedly mounted on the bottom of the mounting plate; and a processing assembly disposed at the bottom of the mounting plate; The processing assembly includes an adjustment mechanism installed at the bottom position of the mounting plate; A processing mechanism is installed at the bottom of the mounting plate, and the processing mechanism is connected to the adjustment mechanism; An auxiliary mechanism is installed on the inner wall of the peristaltic pump housing, and the auxiliary mechanism is connected to the regulating mechanism.

[0005] Preferably, the adjustment mechanism includes a bidirectional threaded rod, one end of the bidirectional threaded rod is rotatably mounted on the inner wall of the peristaltic pump housing through a bearing, the other end of the bidirectional threaded rod movably penetrates the inner wall of the peristaltic pump housing and extends to the outer position of the peristaltic pump housing, a displacement block is installed on the side wall of the bidirectional threaded rod, a connecting rod is hingedly installed on the inner wall of the displacement block, a triangular block is hingedly installed on the other end of the connecting rod, a stabilizing rod is fixedly installed on the side wall of the triangular block, an adjustment block is fixedly installed on the other end of the stabilizing rod, a rectangular plate is fixedly installed on the top of the adjustment block, and the bottom of the rectangular plate is fixedly connected to the top of the triangular block.

[0006] Preferably, there are two triangular blocks, the two triangular blocks are equal in shape and size, and the two triangular blocks are symmetrically arranged relative to the middle surface of the mounting plate in the front-to-back direction.

[0007] Preferably, the side wall of the bidirectional threaded rod is threadedly connected to the inner wall of the displacement block, a rotating handle is fixedly installed at one end of the bidirectional threaded rod, there are two bidirectional threaded rods, the shapes and sizes of the two bidirectional threaded rods are equal, and when the bidirectional threaded rod is rotated, the positions of the two displacement blocks can be driven to move.

[0008] Preferably, the processing mechanism includes a rectangular frame, the bottom of the rectangular frame is fixedly connected to the top of the rectangular plate, the inner wall of the rectangular frame is fixedly installed with a slide rail, the side wall of the slide rail is slidably installed with a stable base, the inner wall of the stable base is rotatably installed with an extrusion roller through a bearing, the side wall of the stable base is slidably connected to the inner wall of the rectangular frame, and the bottom of the stable base is slidably connected to the top of the rectangular plate.

[0009] Preferably, a tilting rod is fixedly mounted on the side wall of the rectangular frame, the bottom of the tilting rod is fixedly connected to the top of the rectangular plate, there are four tilting rods, and the shapes and sizes of the four tilting rods are equal.

[0010] Preferably, the auxiliary mechanism includes a column and a reinforcement, the top of the reinforcement is fixedly connected to the bottom of the adjustment block, a rectangular block is fixedly installed on the bottom of the reinforcement, a limit rod is slidably installed on the inner wall of the rectangular block, and both ends of the limit rod are slidably connected to the inner wall of the peristaltic pump housing.

[0011] Preferably, the column is fixedly mounted on the inner wall of the peristaltic pump housing, the side wall of the column is slidably connected to the inner wall of the rectangular plate, there are four columns, and the shapes and sizes of the four columns are equal.

[0012] Preferably, the diameter of the side wall of the column is the same as the diameter of the inner wall of the circular hole provided on the inner wall of the rectangular plate, and the side wall of the column is slidably connected to the inner wall of the circular hole.

[0013] Preferably, a connecting hose is slidably mounted on the inner wall of the peristaltic pump housing, and the connecting hose is located below the mounting plate.

[0014] The present invention provides a linear high-precision peristaltic pump, which has the following beneficial effects: (1) The present invention allows an operator to connect one end of the connecting hose to an external source, and then the operator can adjust the position of the squeezing roller as needed, so that the side wall of the squeezing roller squeezes the side wall of the hose. First, the rotating handle is turned on, and the rotating handle drives the position of the bidirectional threaded rod to rotate. Since the side wall of the bidirectional threaded rod is threadedly connected to the inner wall of the displacement block, the bidirectional threaded rod can drive the position of the displacement block to approach each other when it rotates. The displacement block will squeeze one end of the connecting rod, and the connecting rod will further drive the position of the triangular block to be lifted. The triangular block drives the position of the adjustment block to be lifted through the stabilizing rod, and the adjustment block further drives the position of the rectangular plate to be lifted. By adjusting the position of the rectangular plate, the height of the squeezing roller can be quickly adjusted, thereby achieving the purpose of adjusting the flow rate of the fluid, solving the problem that most peristaltic pumps in the prior art adopt a rotary structure, which has low flow control accuracy and poor long-term working stability.

[0015] (2) In the present invention, after the height of the squeezing roller is adjusted, the slide rail can be directly opened, and the slide rail drives the stable base to slide on the inner wall of the rectangular frame. The stable base further drives the position of the squeezing roller to move back and forth. The reciprocating squeezing roller can promote the flow of the fluid inside the connecting hose.

[0016] (3) The present invention can effectively drive the position of the adjustment block to be raised when the position of the rectangular plate is moved, and the adjustment block further drives the position of the reinforcement and the rectangular block to be raised, and the rectangular block further drives the position of the limit rod to move, thereby improving the stability of the rectangular plate during the up and down movement and improving the performance of the device.

[0017] (4) In the present invention, when the rectangular plate moves up and down, it will also slide on the side wall of the column, and the stability of the rectangular plate during movement is further improved through the column, so that the squeezing roller can better squeeze the side wall of the connecting hose, which is convenient for operators to better use the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention facing upward; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4It is a structural schematic diagram of the regulating mechanism and the processing mechanism of the present invention; Figure 5 It is a structural schematic diagram of the regulating mechanism and the auxiliary mechanism of the present invention; Figure 6 It is a partial structural schematic diagram of the regulating mechanism and auxiliary mechanism of the present invention.

[0019] In the figure: 1. mounting plate; 2. peristaltic pump housing; 3. connecting hose; 4. processing assembly; 41. adjusting mechanism; 411. bidirectional threaded rod; 412. turning handle; 413. displacement block; 414. connecting rod; 415. rectangular plate; 416. triangular block; 417. stabilizing rod; 418. adjusting block; 42. processing mechanism; 421. tilting rod; 422. rectangular frame; 423. squeezing roller; 424. stabilizing base; 425. slide rail; 43. auxiliary mechanism; 431. limiting rod; 432. rectangular block; 433. reinforcement; 434. column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] 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.

[0022] In the description of the present invention, it is to 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”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 limiting the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0025] Embodiment 1: A preferred embodiment of a linear high-precision peristaltic pump provided by the present invention is as follows Figures 1 to 6 As shown: A linear high-precision peristaltic pump, comprising a mounting plate 1, A peristaltic pump housing 2 is fixedly mounted on the bottom of the mounting plate 1; and a processing assembly 4 disposed at the bottom of the mounting plate 1; The processing assembly 4 includes an adjustment mechanism 41 installed at the bottom position of the mounting plate 1; A processing mechanism 42 is installed at the bottom of the mounting plate 1, and the processing mechanism 42 is connected to the adjustment mechanism 41; An auxiliary mechanism 43 is installed on the inner wall of the peristaltic pump housing 2 , and the auxiliary mechanism 43 is connected to the regulating mechanism 41 .

[0026] The adjusting mechanism 41 includes a bidirectional threaded rod 411, one end of which is rotatably mounted on the inner wall of the peristaltic pump housing 2 through a bearing, and the other end of the bidirectional threaded rod 411 movably penetrates the inner wall of the peristaltic pump housing 2 and extends to the outer side of the peristaltic pump housing 2. A displacement block 413 is mounted on the side wall of the bidirectional threaded rod 411, a connecting rod 414 is hingedly mounted on the inner wall of the displacement block 413, a triangular block 416 is hingedly mounted on the other end of the connecting rod 414, a stabilizing rod 417 is fixedly mounted on the side wall of the triangular block 416, an adjusting block 418 is fixedly mounted on the other end of the stabilizing rod 417, a rectangular plate 415 is fixedly mounted on the top of the adjusting block 418, and the bottom of the rectangular plate 415 is fixedly connected to the top of the triangular block 416.

[0027] In this embodiment, there are two triangular blocks 416 . The two triangular blocks 416 are equal in shape and size, and are symmetrically arranged relative to the middle surface of the mounting plate 1 in the front-to-back direction.

[0028] Furthermore, the side wall of the bidirectional threaded rod 411 is threadedly connected to the inner wall of the displacement block 413, and a rotating handle 412 is fixedly installed at one end of the bidirectional threaded rod 411. There are two bidirectional threaded rods 411, and the shapes and sizes of the two bidirectional threaded rods 411 are equal. When the bidirectional threaded rod 411 rotates, it can drive the positions of the two displacement blocks 413 to move.

[0029] During the specific implementation process, when the operator uses the device, the peristaltic pump housing 2 is quickly installed through the installation hole opened on the surface of the installation plate 1, and then the operator connects one end of the connecting hose 3 to the external source. Then the operator can adjust the position of the squeezing roller 423 as needed to cause the side wall of the squeezing roller 423 to squeeze the side wall of the hose. First, the rotating handle 412 is turned on, and the rotating handle 412 drives the position of the bidirectional threaded rod 411 to rotate. Due to the side wall of the bidirectional threaded rod 411 and the displacement block 413, the position of the bidirectional threaded rod 411 is adjusted. The inner wall is threadedly connected, so when the bidirectional threaded rod 411 rotates, it can drive the displacement block 413 to be closer to each other, and the displacement block 413 will squeeze one end of the connecting rod 414. The connecting rod 414 further drives the position of the triangular block 416 to be lifted. The triangular block 416 drives the position of the adjustment block 418 to be lifted through the stabilizing rod 417. The adjustment block 418 further drives the position of the rectangular plate 415 to be lifted. By adjusting the position of the rectangular plate 415, the height of the squeezing roller 423 can be quickly adjusted, thereby achieving the purpose of adjusting the flow rate of the fluid.

[0030] Embodiment 2: Based on Embodiment 1, a preferred embodiment of a linear high-precision peristaltic pump provided by the present invention is as follows: Figures 1 to 6 As shown: the processing mechanism 42 includes a rectangular frame 422, the bottom of the rectangular frame 422 is fixedly connected to the top of the rectangular plate 415, the inner wall of the rectangular frame 422 is fixedly installed with a slide rail 425, the side wall of the slide rail 425 is slidably installed with a stable base 424, the inner wall of the stable base 424 is rotatably installed with an extrusion roller 423 through a bearing, the side wall of the stable base 424 is slidably connected to the inner wall of the rectangular frame 422, and the bottom of the stable base 424 is slidably connected to the top of the rectangular plate 415.

[0031] In this embodiment, a tilting rod 421 is fixedly installed on the side wall of the rectangular frame 422, and the bottom of the tilting rod 421 is fixedly connected to the top of the rectangular plate 415. There are four tilting rods 421, and the shapes and sizes of the four tilting rods 421 are equal.

[0032] In the specific implementation process, after the height of the squeezing roller 423 is adjusted, the slide rail 425 can be directly opened, and the slide rail 425 drives the stable base 424 to slide on the inner wall of the rectangular frame 422. The stable base 424 further drives the position of the squeezing roller 423 to move back and forth. The reciprocating squeezing roller 423 can promote the flow of the fluid inside the connecting hose 3.

[0033] Embodiment 3: Based on Embodiment 1 and Embodiment 2, a preferred embodiment of a linear high-precision peristaltic pump provided by the present invention is as follows: Figures 1 to 6 As shown: the auxiliary mechanism 43 includes a column 434 and a reinforcement 433, the top of the reinforcement 433 is fixedly connected to the bottom of the adjustment block 418, the bottom of the reinforcement 433 is fixedly installed with a rectangular block 432, the inner wall of the rectangular block 432 is slidably installed with a limit rod 431, and the two ends of the limit rod 431 are slidably connected to the inner wall of the peristaltic pump housing 2.

[0034] In this embodiment, the column 434 is fixedly mounted on the inner wall of the peristaltic pump housing 2, and the side wall of the column 434 is slidably connected to the inner wall of the rectangular plate 415. There are four columns 434, and the shapes and sizes of the four columns 434 are equal.

[0035] Furthermore, the diameter of the side wall of the column 434 is the same as the inner wall diameter of the circular hole formed on the inner wall of the rectangular plate 415 , and the side wall of the column 434 is slidably connected to the inner wall of the circular hole.

[0036] Furthermore, a connecting hose 3 is slidably mounted on the inner wall of the peristaltic pump housing 2 , and the connecting hose 3 is located below the mounting plate 1 .

[0037] During the specific implementation process, when the position of the rectangular plate 415 is moving, it can effectively drive the position of the adjustment block 418 to be lifted, and the adjustment block 418 further drives the positions of the reinforcement 433 and the rectangular block 432 to be lifted, and the rectangular block 432 further drives the position of the limit rod 431 to move, thereby improving the stability of the rectangular plate 415 during the up and down movement.

[0038] 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.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A linear high-precision peristaltic pump, comprising a mounting plate (1), A peristaltic pump housing (2) fixedly mounted on the bottom of the mounting plate (1); and a processing assembly (4) arranged at the bottom of the mounting plate (1); characterized in that: The processing assembly (4) comprises an adjustment mechanism (41) installed at the bottom of the mounting plate (1); A processing mechanism (42) is installed at the bottom of the mounting plate (1), and the processing mechanism (42) is connected to the adjustment mechanism (41); An auxiliary mechanism (43) is installed on the inner wall of the peristaltic pump housing (2), and the auxiliary mechanism (43) is connected to the regulating mechanism (41).

2. A linear high-precision peristaltic pump according to claim 1, characterized in that: The adjustment mechanism (41) comprises a bidirectional threaded rod (411), one end of the bidirectional threaded rod (411) being rotatably mounted on the inner wall of the peristaltic pump housing (2) via a bearing, the other end of the bidirectional threaded rod (411) being movably penetrated through the inner wall of the peristaltic pump housing (2) and extending to the outer side of the peristaltic pump housing (2), a displacement block (413) being mounted on the side wall of the bidirectional threaded rod (411), a connecting rod (414) being hingedly mounted on the inner wall of the displacement block (413), a triangular block (416) being hingedly mounted on the other end of the connecting rod (414), a stabilizing rod (417) being fixedly mounted on the side wall of the triangular block (416), an adjustment block (418) being fixedly mounted on the other end of the stabilizing rod (417), a rectangular plate (415) being fixedly mounted on the top of the adjustment block (418), and a bottom of the rectangular plate (415) being fixedly connected to the top of the triangular block (416).

3. A linear high-precision peristaltic pump according to claim 2, characterized in that: There are two triangular blocks (416), the two triangular blocks (416) are equal in shape and size, and the two triangular blocks (416) are symmetrically arranged relative to the middle surface of the mounting plate (1) in the front-to-back direction.

4. A linear high-precision peristaltic pump according to claim 2, characterized in that: The side wall of the bidirectional threaded rod (411) is threadedly connected to the inner wall of the displacement block (413); a rotating handle (412) is fixedly mounted on one end of the bidirectional threaded rod (411); there are two bidirectional threaded rods (411), and the two bidirectional threaded rods (411) are equal in shape and size.

5. A linear high-precision peristaltic pump according to claim 1, characterized in that: The processing mechanism (42) comprises a rectangular frame (422), the bottom of the rectangular frame (422) is fixedly connected to the top of the rectangular plate (415), the inner wall of the rectangular frame (422) is fixedly mounted with a slide rail (425), the side wall of the slide rail (425) is slidably mounted with a stable base (424), the inner wall of the stable base (424) is rotatably mounted with an extrusion roller (423) via a bearing, the side wall of the stable base (424) is slidably connected to the inner wall of the rectangular frame (422), and the bottom of the stable base (424) is slidably connected to the top of the rectangular plate (415).

6. A linear high-precision peristaltic pump according to claim 5, characterized in that: A tilting rod (421) is fixedly mounted on the side wall of the rectangular frame (422); the bottom of the tilting rod (421) is fixedly connected to the top of the rectangular plate (415); there are four tilting rods (421); and the four tilting rods (421) are of equal shape and size.

7. A linear high-precision peristaltic pump according to claim 1, characterized in that: The auxiliary mechanism (43) comprises a column (434) and a reinforcement member (433), the top of the reinforcement member (433) being fixedly connected to the bottom of the adjustment block (418), the bottom of the reinforcement member (433) being fixedly mounted with a rectangular block (432), the inner wall of the rectangular block (432) being slidably mounted with a limit rod (431), and both ends of the limit rod (431) being slidably connected to the inner wall of the peristaltic pump housing (2).

8. A linear high-precision peristaltic pump according to claim 7, characterized in that: The column (434) is fixedly mounted on the inner wall of the peristaltic pump housing (2); the side wall of the column (434) is slidably connected to the inner wall of the rectangular plate (415); there are four columns (434), and the four columns (434) are of equal shape and size.

9. A linear high-precision peristaltic pump according to claim 8, characterized in that: The diameter of the side wall of the column (434) is the same as the diameter of the inner wall of the circular hole provided on the inner wall of the rectangular plate (415), and the side wall of the column (434) is slidably connected to the inner wall of the circular hole.

10. A linear high-precision peristaltic pump according to claim 1, characterized in that: A connecting hose (3) is slidably mounted on the inner wall of the peristaltic pump housing (2), and the connecting hose (3) is located below the mounting plate (1).

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