Liquid pumping device of chemiluminescence instrument

Abstract

The utility model belongs to the technical field of liquid extraction devices, and discloses a liquid extraction device of a chemiluminiscence instrument, which comprises a support member and a liquid extraction member positioned above the support member and used for extracting liquid, a support surface for supporting a reaction cup is formed at the top of the support member, and a horizontally moving moving part is mounted between the support member and the liquid extraction member. The movable part comprises N rubber heads which do relative reciprocating motion, N is larger than or equal to 3, a positioning space for positioning the reaction cup is formed among the N rubber heads, and the positioning space is located under the liquid pumping component through movement of the N rubber heads. Furthermore, the rubber head pushes the reaction cup to move on the supporting component, so that the reaction cup automatically moves to the position below the liquid pumping component, the position of the reaction cup does not need to be manually adjusted by personnel, the early-stage preparation time of the device is shortened, and the use difficulty of the device is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid pumping devices, and in particular relates to a liquid pumping device for a chemiluminescence instrument. Background Art

[0002] However, a liquid extraction device for a chemiluminescence instrument currently on the market, for example, in a Chinese patent with publication number "CN220399286U", a liquid extraction device for a chemiluminescence instrument is disclosed, the device includes a fixed block, a needle tube that can slide up and down, a limit block that limits the needle tube on the fixed block, a first spring that elastically connects the limit block to the fixed block, and a liquid pump joint fixed to the top of the needle tube, the end of the needle tube is provided with a movable joint that can move at multiple angles, the movable joint is elastically connected to the needle tube through a second spring, the end of the movable joint is fixed with a liquid suction plate that can still fit with the bottom of the cup when the needle tube is tilted, the device first contacts the bottom of the cup through the liquid suction plate, and as the needle tube is pressed, the movable joint can compress the second spring toward the tilted side of the needle tube, and then the movable joint rotates at the bottom of the needle tube, that is, the liquid suction plate can still keep horizontal fit with the bottom of the cup when the needle tube is in a tilted posture, and can suck the remaining liquid at the bottom of the cup, but when the device is used, personnel still need to manually adjust the position of the reaction cup, so the initial preparation time is long, which increases the difficulty of using the device. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid extraction device for a chemiluminescence instrument to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid extraction device for a chemiluminescence instrument, comprising a supporting member and a liquid extraction member located above the supporting member for extracting liquid, the top of the supporting member forming a supporting surface for supporting a reaction cup, and a horizontally movable member is installed between the supporting member and the liquid extraction member, the movable member comprises N rubber heads that move back and forth relative to each other, N≥3, a positioning space for positioning the reaction cup is formed between the N rubber heads, and the positioning space is located directly below the liquid extraction member by moving the N rubber heads.

[0005] Preferably, the supporting member comprises a base, and a supporting rod is fixedly connected to the bottom of the base.

[0006] Preferably, a support plate is fixedly connected to the top of the base, and a plurality of rolling balls are rotatably connected to the top of the support plate.

[0007] Preferably, a support frame is fixedly connected to one side of the base, and a base plate is fixedly connected to a free end of the support frame.

[0008] Preferably, the liquid extraction component comprises an infusion tube, a connector is fixedly connected to the top of the infusion tube, and the infusion tube is slidably connected to the base plate.

[0009] Preferably, a suction cup is fixedly connected to the bottom of the infusion tube.

[0010] Preferably, a plurality of electric push rods are fixedly connected to the bottom of the base, the electric push rods are matched one by one with the rubber heads, and the telescopic ends of the electric push rods are connected to moving rods, the opposite sides of the plurality of rubber heads are fixedly connected to base rods, and a guide plate is fixedly connected between the base rod and the free ends of the moving rods.

[0011] Preferably, a plurality of electric push rods are fixedly connected to the bottom of the base, the electric push rods are matched with the rubber heads one by one, and the telescopic ends of the electric push rods are connected to moving rods, the opposite sides of the plurality of rubber heads are fixedly connected to base rods, the free ends of the moving rods are fixedly connected to guide plates, a connecting frame is slidably connected to the guide plate, a base rod is fixedly connected between the connecting frame and the rubber heads, and a screw for contacting the guide plate is screwed on the connecting frame.

[0012] Preferably, one side opposite to each other of the plurality of guide plates is fixedly connected to a limiting plate, and the limiting plate is located above the connecting frame.

[0013] Preferably, a side of the guide plate close to the screw rod is recessed to form a limiting groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model provides a movable rubber head. When a person places a reaction cup on a supporting member, the rubber head moves relative to the supporting member, thereby pushing the reaction cup to move on the supporting member, so that the reaction cup automatically moves to the bottom of the liquid extraction member. There is no need for a person to manually adjust the position of the reaction cup, thereby reducing the initial preparation time of the device and reducing the difficulty of using the device.

[0016] (2) On the basis of the above beneficial effects, the utility model provides a guide plate and a connecting frame. The connecting frame is pulled to move on the guide plate, and the connecting frame is fixed to the position required by the personnel on the guide plate by rotating the screw. The rubber head is adjusted according to the center of gravity height of the reaction cup, so that the rubber head pushes the reaction cup more smoothly, further reducing the difficulty of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is one of the three-dimensional views of the utility model with the support plate removed;

[0019] Figure 3 The second stereoscopic view of the utility model with the support plate removed;

[0020] Figure 4 The third stereoscopic view of the utility model with the support plate removed;

[0021] In the figure: 1. support rod; 2. support plate; 3. connecting frame; 4. base rod; 5. guide plate; 6. rubber head; 7. infusion tube; 8. connecting head; 9. base plate; 10. support frame; 11. screw rod; 12. limit groove; 13. electric push rod; 14. rolling ball; 15. moving rod; 16. suction cup; 17. base; 18. limit plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 As shown, the utility model provides the following technical solutions: a liquid extraction device for a chemiluminescence instrument, comprising a supporting member and a liquid extraction member located above the supporting member for extracting liquid, the top of the supporting member forming a supporting surface for supporting a reaction cup, and a horizontally movable member is installed between the supporting member and the liquid extraction member, the movable member comprising N rubber heads 6 that move back and forth relatively, N≥3, a positioning space for positioning the reaction cup is formed between the N rubber heads 6, and the positioning space is located directly below the liquid extraction member by moving the N rubber heads 6.

[0024] Through the above technical solution, when personnel need to perform liquid extraction operation, the reaction cup storing the liquid sample is placed on the supporting surface formed on the supporting component. After the reaction cup is inverted, the moving part works to move the N rubber heads 6, and the reaction cup on the supporting surface is pushed by the N rubber heads 6 to move the reaction cup on the supporting surface until the reaction cup moves to the bottom of the liquid extraction component. The liquid extraction component is connected to the chemiluminescence instrument, and the liquid extraction component is inserted into the interior of the reaction cup. The chemiluminescence instrument works to allow the liquid extraction component to extract the liquid sample inside the reaction cup, without the need for personnel to manually locate the position of the reaction cup.

[0025] Specifically, in one embodiment, regarding the above-mentioned supporting member:

[0026] like Figure 1-Figure 4 As shown, the supporting member includes a base 17 , and a supporting rod 1 is fixedly connected to the bottom of the base 17 .

[0027] In this embodiment, the base 17 is supported by the support rod 1, and the reaction cup is supported by the base 17. After the personnel places the reaction cup, the multiple rubber heads 6 are moved to push the reaction cup on the supporting surface to move, thereby automatically aligning the reaction cup to the bottom of the liquid extraction component.

[0028] In addition, in the present invention, in order to make the reaction cup move more smoothly, Figure 1 As shown, a support plate 2 is fixedly connected to the top of the base 17, and a plurality of rolling balls 14 are rotatably connected to the top of the support plate 2.

[0029] In this embodiment, the support plate 2 is supported by the base 17, and the ball 14 is supported by the support plate 2. The reaction cup is placed above the support plate 2, and the multiple rubber heads 6 are moved to push the reaction cup above the support plate 2 to move. Through the cooperation of the ball 14, the reaction cup is automatically aligned to the bottom of the liquid extraction component, so that the movement of the reaction cup is smoother.

[0030] And, how to install the infusion tube 7, such as Figure 1-Figure 4 As shown, a support frame 10 is fixedly connected to one side of the base 17 , and a base plate 9 is fixedly connected to the free end of the support frame 10 .

[0031] In this embodiment, the support frame 10 is supported by the base 17 , the base plate 9 is supported by the support frame 10 , and the liquid pumping member is further supported by the base plate 9 , so that the liquid pumping member is installed above the base 17 .

[0032] Specifically, in one embodiment, regarding how the above-mentioned liquid extraction component extracts the liquid in the reaction cup:

[0033] like Figure 1-Figure 4 As shown, the liquid extraction component includes an infusion tube 7, a connector 8 is fixedly connected to the top of the infusion tube 7, and the infusion tube 7 is slidably connected to the base plate 9;

[0034] A suction cup 16 is fixedly connected to the bottom of the infusion tube 7 .

[0035] In this embodiment, the infusion tube 7 is pulled to move the infusion tube 7 and the suction cup 16, and then the connector 8 is connected to the chemiluminescence instrument. The chemiluminescence instrument works to make the infusion tube 7 and the suction cup 16 generate suction, thereby absorbing the liquid inside the reaction cup.

[0036] In addition, regarding how to adjust the position of the rubber head 6, the present invention provides the following implementation methods:

[0037] Implementation Method 1

[0038] A plurality of electric push rods 13 are fixedly connected to the bottom of the base 17. The electric push rods 13 are matched one by one with the rubber heads 6, and the telescopic ends of the electric push rods 13 are connected to the moving rods 15. The opposite sides of the plurality of rubber heads 6 are fixedly connected to the base rods 4, and a guide plate 5 is fixedly connected between the free ends of the base rods 4 and the moving rods 15.

[0039] In this embodiment, the support frame 10 and the electric push rod 13 are supported by the base 17, the base plate 9 is supported by the support frame 10, and then the infusion tube 7 is supported, the reaction cup to be used is placed above the support plate 2, the moving rod 15 is driven to move by the electric push rod 13, the guide plate 5 is driven to move by the moving rod 15, the base rod 4 and the rubber head 6 are driven to move by the guide plate 5, and the reaction cup is pushed to move on the support plate 2 by the rubber head 6 until the reaction cup automatically moves to the bottom of the suction cup 16, so that the sample liquid in the reaction cup can be easily sucked by the suction cup 16.

[0040] Implementation Method 2

[0041] A plurality of electric push rods 13 are fixedly connected to the bottom of the base 17, the electric push rods 13 are matched one by one with the rubber heads 6, and the telescopic ends of the electric push rods 13 are connected to the moving rods 15, the opposite sides of the plurality of rubber heads 6 are fixedly connected to the base rods 4, the free ends of the moving rods 15 are fixedly connected to the guide plates 5, the guide plates 5 are slidably connected to the connecting frames 3, the base rods 4 are fixedly connected between the connecting frames 3 and the rubber heads 6, and the connecting frames 3 are screwed with the screws 11 for resisting the guide plates 5.

[0042] In this embodiment, the support frame 10 and the electric push rod 13 are supported by the base 17, the base plate 9 is supported by the support frame 10, and then the infusion tube 7 is supported, and the reaction cup to be used is placed above the support plate 2. In order to adjust according to the center of gravity of the reaction cup so that the reaction cup is more stable when moving, the base rod 4 and the rubber head 6 are pulled, so that the base rod 4 drives the connecting frame 3 to slide on the guide plate 5, and then the positions of the connecting frame 3, the base rod 4 and the rubber head 6 are adjusted. After the positions of the connecting frame 3, the base rod 4 and the rubber head 6 are adjusted, the screw rod 11 on the connecting frame 3 is rotated so that the screw rod 11 contacts the guide plate 5, so that the horizontal height of the connecting frame 3, the base rod 4 and the rubber head 6 is adjusted to the height required by the personnel, the moving rod 15 is driven to move by the electric push rod 13, the guide plate 5 is driven to move by the moving rod 15, the base rod 4 and the rubber head 6 are driven to move by the guide plate 5, and the reaction cup is pushed to move on the support plate 2 by the rubber head 6 until the reaction cup automatically moves to the bottom of the suction cup 16, so that the sample liquid in the reaction cup can be easily sucked by the suction cup 16.

[0043] When the connecting frame 3 moves, in order to prevent the connecting frame 3 from accidentally falling off the guide plate 5, as shown in FIG. Figure 1-Figure 4 As shown, one side opposite to the plurality of guide plates 5 is fixedly connected to a limiting plate 18 , and the limiting plate 18 is located above the connecting frame 3 .

[0044] In this embodiment, when the connecting frame 3 moves on the guide plate 5 , the maximum moving height of the connecting frame 3 is limited by the limiting plate 18 to prevent the connecting frame 3 from accidentally falling off the guide plate 5 .

[0045] When the screw rod 11 contacts the guide plate 5, in order to make the adjusted position of the guide plate 5 more secure, as shown in FIG. Figure 1-Figure 3 As shown, one side of the guide plate 5 close to the screw rod 11 is sunken to form a limiting groove 12 .

[0046] In this embodiment, when the screw rod 11 abuts against the guide plate 5 , the limiting groove 12 cooperates to make the position of the connecting frame 3 more stable after adjustment.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid extraction device for a chemiluminescence instrument, characterized in that: The invention comprises a supporting member and a liquid extracting member located above the supporting member for extracting liquid, wherein the top of the supporting member forms a supporting surface for supporting a reaction cup, and a moving member for horizontal movement is installed between the supporting member and the liquid extracting member, wherein the moving member comprises N rubber heads (6) that move back and forth relatively, N≥3, and a positioning space for positioning the reaction cup is formed between the N rubber heads (6), and the positioning space is located directly below the liquid extracting member by moving the N rubber heads (6).

2. The liquid extraction device for a chemiluminescence instrument according to claim 1, characterized in that: The supporting member comprises a base (17), and a supporting rod (1) is fixedly connected to the bottom of the base (17).

3. The liquid extraction device for a chemiluminescence instrument according to claim 2, characterized in that: The top of the base (17) is fixedly connected to a support plate (2), and the top of the support plate (2) is rotatably connected to a plurality of rolling balls (14).

4. The liquid extraction device for a chemiluminescence instrument according to claim 3, characterized in that: A support frame (10) is fixedly connected to one side of the base (17), and a base plate (9) is fixedly connected to a free end of the support frame (10).

5. The liquid extraction device for a chemiluminescence instrument according to claim 4, characterized in that: The liquid extraction component comprises an infusion tube (7), a connector (8) is fixedly connected to the top of the infusion tube (7), and the infusion tube (7) is slidably connected to the base plate (9).

6. The liquid extraction device for a chemiluminescence instrument according to claim 5, characterized in that: A suction cup (16) is fixedly connected to the bottom of the infusion tube (7).

7. The liquid extraction device for a chemiluminescence instrument according to claim 4, characterized in that: A plurality of electric push rods (13) are fixedly connected to the bottom of the base (17), the electric push rods (13) are matched with the rubber heads (6) one by one, and the telescopic ends of the electric push rods (13) are connected to the moving rods (15), and the opposite sides of the plurality of rubber heads (6) are fixedly connected to the base rods (4), and a guide plate (5) is fixedly connected between the free ends of the base rods (4) and the moving rods (15).

8. The liquid extraction device for a chemiluminescence instrument according to claim 4, characterized in that: A plurality of electric push rods (13) are fixedly connected to the bottom of the base (17), the electric push rods (13) are matched with the rubber heads (6) one by one, and the telescopic ends of the electric push rods (13) are connected to moving rods (15), the opposite sides of the plurality of rubber heads (6) are fixedly connected to base rods (4), the free ends of the moving rods (15) are fixedly connected to guide plates (5), the guide plates (5) are slidably connected to a connecting frame (3), the connecting frame (3) and the rubber heads (6) are fixedly connected to the base rods (4), and the connecting frame (3) is screwed with a screw (11) for contacting the guide plates (5).

9. The liquid extraction device for a chemiluminescence instrument according to claim 8, characterized in that: The opposite sides of the plurality of guide plates (5) are all fixedly connected to a limiting plate (18), and the limiting plate (18) is located above the connecting frame (3).

10. The liquid extraction device for a chemiluminescence instrument according to claim 9, characterized in that: The side of the guide plate (5) close to the screw rod (11) is recessed to form a limiting groove (12).

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