Peristaltic pump reagent dispensing device

Abstract

This utility model relates to the field of reagent dispensing technology and discloses a peristaltic pump reagent dispensing device, including a peristaltic pump body. Several support rods are fixedly connected to the top of the base plate. Two of the support rods are hinged to a rotating plate at their inner ends. A U-shaped guide groove is formed through the top of the rotating plate. An inner liner plate is provided at the bottom of the rotating plate. Several limiting holes are formed through the inner liner plate. Elastic ropes are fixedly connected between the four corners of the inner liner plate and the rotating plate. An I-shaped slide cylinder is slidably engaged inside the U-shaped guide groove. A sleeve is slidably engaged at the inner end of the I-shaped slide cylinder. A fixing ring is fixedly connected to the lower end of the outer wall of the sleeve. Several return springs are fixedly connected between the fixing ring and the I-shaped slide cylinder. Second threaded rods are threaded through both sides of the upper end of the sleeve. This utility model, through the cooperation of the I-shaped slide cylinder and the sleeve, combined with the return springs, can fix the guide tube and can also move along the U-shaped guide groove, adapting to continuous dispensing of multiple triangular bottles.

Description

Technical Field

[0001] This utility model relates to the field of reagent dispensing technology, specifically a peristaltic pump reagent dispensing device. Background Technology

[0002] A peristaltic pump is a fluid transport device that uses mechanical rollers (or pressure blocks) to alternately squeeze and release an elastic pump tube, creating alternating negative and positive pressures within the tube. Its core feature is that the reagent only contacts the pump tube, avoiding contact with other parts of the pump body, thus preventing contamination and corrosion. Simultaneously, the fluid flow rate can be precisely controlled by adjusting the roller speed, making it suitable for transporting liquids, gases, or fluids containing small particles. It is widely used in fluid transfer and quantitative distribution scenarios in scientific research, medical, and chemical industries.

[0003] A dispensing device for producing magnetic microparticle reagents, disclosed in CN222973771U, includes: "an adjustable-speed shaker and a peristaltic pump; the shaker includes a base, a support plate is mounted on the upper side of the base, and multiple triangular bottles for holding magnetic microparticle reagents are mounted on the upper side of the support plate; the support plate has a support platform corresponding to each triangular bottle, and the support platform is provided with a clamping arm for clamping the triangular bottle; the end of the clamping arm is equipped with an arc-shaped clamping piece for clamping against the side wall of the triangular bottle." The technical solution includes: placing the prepared magnetic microparticle reagent to be dispensed on the support platform and fixing it by the clamping arm; and connecting the reagent bottle to the peristaltic pump using a disposable clean tubing.

[0004] The aforementioned existing technologies have the following drawbacks: In fields such as scientific research experiments and medical testing, peristaltic pump reagent dispensing often requires the use of Erlenmeyer flasks (such as conical reagent bottles or Erlenmeyer flasks) to complete reagent transfer and dispensing.

[0005] In current operations, the tubing is either manually held or haphazardly placed on the mouth of the triangular cup without a fixed limiting structure, which can easily lead to multiple problems: First, the tubing is prone to displacement and slippage, resulting in reagent spillage and waste, and increasing cleaning costs. Second, direct contact between the tubing opening and the reagent may pose a risk of contamination. Therefore, we propose a peristaltic pump reagent dispensing device. Utility Model Content

[0006] The purpose of this invention is to provide a peristaltic pump reagent dispensing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a peristaltic pump reagent dispensing device, comprising a peristaltic pump body, a pump body installed at one end of the peristaltic pump body, and a base plate, wherein the output end of the pump body is connected to a reagent conduit.

[0008] The top of the base plate is fixedly connected to several support rods, two of which are hinged to a rotating plate at their inner ends. A U-shaped guide groove is opened through the top of the rotating plate, and an inner lining plate is provided at the bottom of the rotating plate. Several limiting holes are opened through the inner lining plate, and elastic ropes are fixedly connected between the four corners of the inner lining plate and the rotating plate.

[0009] An I-shaped slide cylinder is slidably engaged inside the U-shaped guide groove. A sleeve is slidably engaged at the inner end of the I-shaped slide cylinder. A fixing ring is fixedly connected to the lower end of the outer wall of the sleeve. Several return springs are fixedly connected between the fixing ring and the I-shaped slide cylinder. A second threaded rod is threaded through both sides of the upper end of the sleeve.

[0010] Preferably, the top of the base plate is provided with a plurality of placement holes, and a rubber gasket is fixedly connected to the inner end of each placement hole.

[0011] Preferably, both sides of the bottom edge of the rotating plate are fixedly connected to connectors, and the other two support rods are threadedly connected to the connectors with first threaded rods.

[0012] Preferably, the diameter of the limiting hole is smaller than the diameter of the placement hole, and handles are fixedly connected to both outer walls of the inner liner plate, and a silicone gasket is provided inside the diameter of the limiting hole.

[0013] Preferably, the inner end of the I-shaped slide cylinder is fixedly connected with several limiting strips, and the outer wall of the sleeve is provided with several sliding grooves that match the diameter of the limiting strips.

[0014] Compared with existing technologies, the advantages of this utility model are: it solves the problems of unsecured tubing and easy container displacement in traditional dispensing methods. The rubber gasket in the bottom plate placement hole and the silicone gasket in the inner liner limiting hole provide double-fixation of the container, preventing displacement and collision damage; the I-shaped slide and sleeve, combined with a return spring, can fix the tubing and also move along the U-shaped guide groove, adapting to continuous dispensing of multiple triangular bottles; the elastic rope can buffer the inner liner, and the overall structure reduces manual tubing handling, avoiding reagent spillage and contamination, and improving dispensing accuracy, efficiency, and safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rotating plate opening structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the rotating plate of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the inner lining plate structure of this utility model.

[0020] In the diagram: 1. Peristaltic pump body; 11. Pump body; 12. Reagent tubing; 2. Base plate; 201. U-shaped guide groove; 202. Limiting hole; 21. Rubber gasket; 22. Support rod; 220. First threaded rod; 23. Rotating plate; 230. Connector; 24. Inner liner; 240. Elastic rope; 241. Handle; 3. I-beam slide; 301. Slide groove; 31. Sleeve; 310. Second threaded rod; 311. Limiting strip; 32. Fixing ring; 33. Return spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, this utility model provides the following technical solution:

[0023] Example 1: A peristaltic pump reagent dispensing device includes a peristaltic pump body 1, a pump body 11 installed at one end of the peristaltic pump body 1, and a base plate 2. A reagent conduit 12 is connected to the output end of the pump body 11. Several support rods 22 are fixedly connected to the top of the base plate 2. Two support rods 22 have rotating plates 23 hinged to their inner ends. A U-shaped guide groove 201 is formed through the top of the rotating plate 23. An inner liner plate 24 is provided at the bottom of the rotating plate 23. Several limiting holes 202 are formed through the inner liner plate 24. The four corners of the inner liner plate 24 are aligned with... An elastic rope 240 is fixedly connected between the rotating plates 23. Several placement holes are opened at the top of the bottom plate 2. A rubber gasket 21 is fixedly connected to the inner end of each placement hole. Connectors 230 are fixedly connected to both sides of the bottom end of the rotating plate 23. The other two support rods 22 are threadedly connected to the connectors 230 with a first threaded rod 220. The diameter of the limiting hole 202 is smaller than the diameter of the placement hole. Handles 241 are fixedly connected to both outer walls of the inner lining plate 24, and a silicone gasket is provided inside the diameter of the limiting hole 202.

[0024] Among them, by fixing the rubber pad 21 in the hole of the bottom plate 2, the bottom of the container can be buffered to avoid the container from being damaged by direct collision with the hard bottom plate 2;

[0025] The connector 230 at the bottom of the rotating plate 23 is threadedly connected to the support rod 22 via the first threaded rod 220, which enables the opening, closing and fixing of the rotating plate 23.

[0026] The 202 limiting hole has a smaller diameter than the placement hole, which can form a stepped limiting effect on the container opening with a smaller top and a larger bottom, making it suitable for triangular bottles.

[0027] In use, first loosen the first threaded rod 220 to release the lock on the rotating plate 23 and flip it outward; insert the bottom of the container to be dispensed into the placement hole of the base plate 2, and achieve buffer positioning of the bottom of the container through the rubber gasket 21 in the hole; then reset the rotating plate 23 and tighten the first threaded rod 220 to complete the fixation. At this time, the limiting hole 202 (with built-in silicone gasket) on the inner liner plate 24 forms a fitting limit with the container opening to ensure the axial positioning accuracy of the container during the dispensing process.

[0028] Example 2: The technical solution of this example, which differs from that of Example 1, includes: an I-shaped slide cylinder 3 is slidably engaged inside the U-shaped guide groove 201; a sleeve 31 is slidably engaged at the inner end of the I-shaped slide cylinder 3; a fixing ring 32 is fixedly connected to the lower end of the outer wall of the sleeve 31; several return springs 33 are fixedly connected between the fixing ring 32 and the I-shaped slide cylinder 3; a second threaded rod 310 is threadedly connected to both sides of the upper end of the sleeve 31; several limiting strips 311 are fixedly connected to the inner end of the I-shaped slide cylinder 3; and several sliding grooves 301 matching the diameter of the limiting strips 311 are opened on the outer wall of the sleeve 31.

[0029] The limiting strip 311 inside the I-beam slide cylinder 3 forms a sliding fit with the sliding groove 301 on the outer wall of the sleeve 31.

[0030] In use, first insert the reagent tubing 12 into the sleeve 31 inside the I-shaped slide cylinder 3, and then tighten the second threaded rod 310 to complete the radial fixation of the tubing; pull the sleeve 31 upward so that it engages with the sliding groove 301 along the limiting strip 311 inside the I-shaped slide cylinder 3 to achieve anti-rotation guiding sliding, and simultaneously compress the return spring 33; after inserting the tubing end into the mouth of the triangular bottle, release the sleeve 31, and use the rebound force of the return spring 33 to achieve self-adaptive fit between the tubing and the bottle mouth; start the peristaltic pump body 1 to perform dispensing operations, and avoid misalignment of the reagent tubing 12 when operating multiple sets of triangular bottles continuously.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A peristaltic pump reagent dispensing device, comprising a peristaltic pump body (1), a pump body (11) installed at one end of the peristaltic pump body (1) and a base plate (2), wherein the output end of the pump body (11) is connected to a reagent conduit (12); characterized in that The top of the base plate (2) is fixedly connected to several support rods (22), two of which are hinged to a rotating plate (23) at their inner ends. The top of the rotating plate (23) is provided with a U-shaped guide groove (201), and the bottom of the rotating plate (23) is provided with an inner lining plate (24). Several limiting holes (202) are provided on the inner lining plate (24). Elastic ropes (240) are fixedly connected between the four corners of the inner lining plate (24) and the rotating plate (23). The U-shaped guide groove (201) is slidably engaged with an I-shaped slide cylinder (3), and the inner end of the I-shaped slide cylinder (3) is slidably engaged with a sleeve (31). The lower end of the outer wall of the sleeve (31) is fixedly connected with a fixing ring (32). Several return springs (33) are fixedly connected between the fixing ring (32) and the I-shaped slide cylinder (3). The upper ends of the sleeve (31) are threadedly connected with second threaded rods (310) on both sides.

2. The peristaltic pump reagent dispensing apparatus of claim 1, wherein: The top of the base plate (2) is provided with several placement holes, and a rubber gasket (21) is fixedly connected to the inner end of each placement hole.

3. The peristaltic pump reagent dispensing apparatus of claim 1, wherein: The rotating plate (23) has two fixed connecting parts (230) on both sides of its bottom end. The other two support rods (22) are threadedly connected to the connecting parts (230) with first threaded rods (220).

4. The peristaltic pump reagent dispensing apparatus of claim 1, wherein: The diameter of the limiting hole (202) is smaller than the diameter of the placement hole. The inner lining plate (24) has handles (241) fixedly connected to both outer walls, and a silicone gasket is provided inside the diameter of the limiting hole (202).

5. The peristaltic pump reagent dispensing apparatus of claim 1, wherein: The inner end of the I-shaped slide cylinder (3) is fixedly connected with several limiting strips (311), and the outer wall of the sleeve (31) is provided with several sliding grooves (301) that match the diameter of the limiting strips (311).

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