Accurate measuring device for size of inner hole of suction head

Abstract

The utility model relates to the technical field of precision measurement, and discloses a suction head inner hole size precision measurement device which comprises a device body, a groove is formed in the top end of one side of the device body, a display screen is fixedly connected to the top of the front end of the other side of the device body, and multiple sets of operation buttons are arranged at the bottom of the front end of the other side of the device body. A limiting assembly capable of being clamped and fixed is arranged in the groove and comprises a hand wheel, a containing cylinder, a threaded inner sleeve, a limiting clamping sleeve, a movable clamping sleeve and a lead screw. According to the precise measurement device for the size of the inner hole of the suction head, by arranging the limiting clamping sleeve, the movable clamping sleeve, the lead screw, the hand wheel, the placement cylinder and the threaded inner sleeve, it is ensured that the suction head cannot be dislocated during measurement, the measurement precision is improved, meanwhile, the suction head is convenient to take, and the problem that manual measurement is adopted is solved; and during measurement, the suction head is easy to displace, so that the measurement accuracy of the size of the inner hole is poor, and manual limiting and fixing cannot be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of precision measurement, in particular to a precision measurement device for the inner hole size of a pipette tip. Background Technique

[0002] A pipette tip is a small tubular device, usually used to transfer liquid or gas from one container or pipe to another container or pipe. The pipette tip is a disposable consumable, used in any application of molecular biology and genetics research, effectively forming a protective structure between the pipette and the sample to ensure the safety of sample aspiration and dispensing.

[0003] During the production of pipette tips, precise measurement of the inner hole size is required to ensure that the inner hole diameters of pipette tips of the same size are the same. At present, manual measurement is mainly used. During the measurement, the pipette tip is prone to displacement, resulting in poor accuracy of the inner hole size measurement, and it is impossible to manually limit and fix both sides of the pipette tip.

[0004] Therefore, a new precision measurement device for the inner hole size of a pipette tip is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a precision measurement device for the inner hole size of a pipette tip, so as to solve the problems of poor accuracy of the inner hole size measurement caused by the displacement of the pipette tip during the manual measurement and the inability to manually limit and fix both sides of the pipette tip as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a precision measurement device for the inner hole size of a pipette tip, including a device main body. A groove is opened at the top end of one side of the device main body. A display screen is fixedly connected to the top of the front end of the other side of the device main body. A plurality of operation buttons are arranged at the bottom of the front end of the other side of the device main body. A limit component for clamping and fixing is arranged inside the groove;

[0007] The limit component includes a handwheel, a placement cylinder, an internal threaded sleeve, a limit clamping sleeve, a movable clamping sleeve and a lead screw. A limit clamping sleeve is fixedly connected to one side inside the groove. The side wall of the device main body is penetrated with a placement cylinder. The inner wall of the placement cylinder is spirally provided with an internal threaded sleeve. A lead screw is horizontally penetrated inside the placement cylinder. The thread outside the lead screw is in accordance with the thread of the internal threaded sleeve;

[0008] Preferably, a handwheel is fixedly connected to the outer side of the lead screw, and the other side of the lead screw is movably connected with a movable clamping sleeve.

[0009] Preferably, two fixing seats are fixedly connected to the top end of one side of the device main body, and the fixing seats are respectively located at the top of both sides of the groove, and a connecting plate is arranged between the fixing seats.

[0010] Preferably, outer insertion rods are fixedly connected to both sides of the connecting plate. The outer insertion rods are inserted and connected inside the fixed seat, and a scale is fixedly connected to the surface of the connecting plate.

[0011] Preferably, a positioning plate is fixedly connected to the outside of one side of the connecting plate, and a moving plate is sleeved on the outside of the other side of the connecting plate. A balancing block is fixedly connected to the front end inside the moving plate. The balancing block is slidably connected to the front end of the connecting plate. A fixing rod is arranged through the front end of the moving plate. A pushing block is fixedly connected to the front end of the fixing rod, and the rear end of the fixing rod is inserted and connected inside the connecting plate.

[0012] Preferably, connecting seats are fixedly connected to both the top end and the bottom end on the outside of the device body, and an anti-slip handle is vertically arranged between the connecting seats.

[0013] Preferably, a reinforcing outer layer is fixedly connected to the outside of the top end and the bottom end of the anti-slip handle. A plurality of inner connecting seats are fixedly connected to the inner wall of the connecting seat, and a guiding groove is formed at the inner end of the inner connecting seat.

[0014] Preferably, a plurality of insertion plates are fixedly connected to the outside of the reinforcing outer layer. The insertion plates are inserted and connected inside the inner connecting seats.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This precision measuring device for the inner hole size of the suction head not only realizes the limiting and fixing function, realizes the rapid measuring function, but also realizes the function of being convenient to carry;

[0016] (1) By providing a limiting collet, a movable collet, a lead screw, a hand wheel, a placing cylinder and an internal thread sleeve, the rotation of the lead screw can flexibly adjust the movable collet. The limiting collet and the movable collet cooperate with each other to clamp and fix both sides of the suction head, ensuring that the suction head will not be displaced during measurement, improving the accuracy of measurement, and at the same time facilitating the taking of the suction head. The placing cylinder plays a guiding role in the movement of the lead screw, and the lead screw can move left and right conveniently through the internal thread sleeve, improving the operation convenience;

[0017] (2) By providing a fixed seat, a connecting plate, outer insertion rods, a scale, a moving plate, a positioning plate and a fixing rod, the outer insertion rods fixed on both sides of the connecting plate are inserted and installed inside the fixed seat, enhancing the connection force between the connecting plate and the fixed seat. The positioning plate and the limiting collet are on the same horizontal line. The moving plate is adjusted to a suitable position according to the inner hole diameter of the suction head, and the fixing rod is inserted and fixed inside the connecting plate to quickly fix the moving plate, reducing the measurement error and simplifying the operation steps;

[0018] (3) By providing an anti-slip handle, a connecting seat, a plug board, a guiding groove and an inner connecting seat, both sides of the anti-slip handle are inserted into the inside of the connecting seat, which facilitates the carrying and use of the device main body, improves the convenience of the device main body, and the plug board is quickly inserted and installed in the inner connecting seat through the guidance of the guiding groove, strengthening the stability of the anti-slip handle itself and effectively preventing the anti-slip handle from falling off, enhancing the safety between structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front sectional structural view of the present utility model;

[0020] Figure 2 is a top view structural view of the limit clamping sleeve of the present utility model;

[0021] Figure 3 is a top view structural view of the connecting plate of the present utility model;

[0022] Figure 4 is a top view structural view of the connecting seat of the present utility model.

[0023] In the figure: 1, device main body; 2, connecting seat; 3, anti-slip handle; 4, display screen; 5, fixed seat; 6, connecting plate; 7, scale; 8, outer plug rod; 9, hand wheel; 10, placing cylinder; 11, groove; 12, internal threaded sleeve; 13, limit clamping sleeve; 14, operation button; 15, movable clamping sleeve; 16, lead screw; 17, moving plate; 18, balance block; 19, push block; 20, fixed rod; 21, positioning plate; 22, inner connecting seat; 23, plug board; 24, guiding groove; 25, reinforcement outer layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , a precision measuring device for the inner hole size of a suction head, including a device main body 1, a groove 11 is opened at the top of one side of the device main body 1, a display screen 4 is fixedly connected to the top of the front end of the other side of the device main body 1, a plurality of operation buttons 14 are arranged at the bottom of the front end of the other side of the device main body 1, and a limit component for clamping and fixing is arranged inside the groove 11;

[0026] The limiting component includes a handwheel 9, a placement cylinder 10, an internal threaded sleeve 12, a limiting clamping sleeve 13, a movable clamping sleeve 15 and a lead screw 16. One side inside the groove 11 is fixedly connected to the limiting clamping sleeve 13. The side wall of the device main body 1 is penetrated by the placement cylinder 10. The inner wall of the placement cylinder 10 is spirally provided with the internal threaded sleeve 12. The placement cylinder 10 is horizontally penetrated by the lead screw 16. The thread on the outside of the lead screw 16 is matched with the thread of the internal threaded sleeve 12;

[0027] The outside of the lead screw 16 is fixedly connected to the handwheel 9, and the other side of the lead screw 16 is movably connected to the movable clamping sleeve 15;

[0028] Specifically, as Figure 1 and Figure 2 shown, during use, the outside of the suction head is placed in contact with the side wall of the limiting clamping sleeve 13. After the handwheel 9 rotates, it drives the lead screw 16 to move into the groove 11 inside the placement cylinder 10 until the movable clamping sleeve 15 clamps and fixes the other side of the suction head, ensuring that the suction head does not move during measurement.

[0029] Embodiment 2: Two fixing seats 5 are fixedly connected to the top end of one side of the device main body 1. The fixing seats 5 are respectively located at the tops on both sides of the groove 11. A connecting plate 6 is arranged between the fixing seats 5;

[0030] The two sides of the connecting plate 6 are fixedly connected to external insertion rods 8. The external insertion rods 8 are inserted and connected inside the fixing seats 5. A scale 7 is fixedly connected to the surface of the connecting plate 6;

[0031] A circle of positioning plates 21 is fixedly connected to the outside of one side of the connecting plate 6. A moving plate 17 is sleeved on the outside of the other side of the connecting plate 6. A balance block 18 is fixedly connected to the front end inside the moving plate 17. The balance block 18 is slidably connected to the front end of the connecting plate 6. A fixing rod 20 is horizontally penetrated through the front end of the moving plate 17. The front end of the fixing rod 20 is fixedly connected to a push block 19. The rear end of the fixing rod 20 is inserted and connected inside the connecting plate 6;

[0032] Specifically, as Figure 1 and Figure 3 shown, during use, the external insertion rods 8 are inserted and installed inside the fixing seats 5 to fix the connecting plate 6 directly above the groove 11. After the positioning plates 21 are aligned with the limiting clamping sleeves 13, the moving plate 17 is pushed to a suitable position according to the inner hole diameter of the suction head. After squeezing the push block 19, the fixing rod 20 is inserted and fixed inside the connecting plate 6 to fix the moving plate 17, and precise measurement is carried out according to the scale 7.

[0033] Embodiment 3: Connecting seats 2 are fixedly connected to both the top end and the bottom end of the outside of the device main body 1. An anti-slip handle 3 is vertically arranged between the connecting seats 2;

[0034] The outer parts at the top and bottom of the anti-slip handle 3 are fixedly connected with a reinforcement outer layer 25. A plurality of inner sockets 22 are fixedly connected to the inner wall of the connecting seat 2, and a guiding groove 24 is formed at the inner end of the inner socket 22;

[0035] A plurality of inserting plates 23 are fixedly connected to the outer part of the reinforcement outer layer 25, and the inserting plates 23 are inserted and connected inside the inner socket 22;

[0036] Specifically, as Figure 1 and Figure 4 shown, when in use, both sides of the anti-slip handle 3 are inserted into the inside of the connecting seat 2, which is convenient for carrying the device main body 1 and improves the convenience of the device main body 1. The inserting plates 23 are quickly inserted and installed in the inner socket 22 under the guidance of the guiding groove 24, strengthening the stability of the anti-slip handle 3 itself and effectively preventing the anti-slip handle 3 from falling off.

[0037] Working principle: When the present utility model is in use, both sides of the anti-slip handle 3 are inserted into the inside of the connecting seat 2, and the inserting plates 23 are quickly inserted and installed in the inner socket 22 under the guidance of the guiding groove 24. The device main body 1 is carried to a suitable position through the anti-slip handle 3. The outer side of the suction head is placed in contact with the side wall of the limiting clamping sleeve 13. After the hand wheel 9 rotates, the lead screw 16 moves into the groove 11 inside the placing cylinder 10 until the movable clamping sleeve 15 clamps and fixes the other side of the suction head. After the positioning plate 21 is aligned with the limiting clamping sleeve 13, the moving plate 17 is pushed to a suitable position according to the inner hole diameter of the suction head. After squeezing the push block 19, the fixing rod 20 is inserted and fixed inside the connecting plate 6 to fix the moving plate 17, and precise measurement is carried out according to the scale 7.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A device for precisely measuring the inner hole size of a suction tip, comprising a device body (1), characterized in that: A groove (11) is provided at the top of one side of the device body (1); a display screen (4) is fixedly connected to the top of the front end of the other side of the device body (1); a plurality of groups of operation buttons (14) are provided at the bottom of the front end of the other side of the device body (1); and a limit assembly that can be clamped and fixed is provided inside the groove (11); The limiting assembly comprises a hand wheel (9), a placement tube (10), a threaded inner sleeve (12), a limiting sleeve (13), a movable sleeve (15) and a screw rod (16); one side of the interior of the groove (11) is fixedly connected to the limiting sleeve (13); the side wall of the device body (1) is penetrated by a placement tube (10); the inner wall of the placement tube (10) is spirally provided with a threaded inner sleeve (12); the interior of the placement tube (10) is transversely penetrated by a screw rod (16); the outer thread of the screw rod (16) is matched with the thread of the threaded inner sleeve (12).

2. The device for precisely measuring the inner hole size of a suction tip according to claim 1, characterized in that: The outer side of the screw rod (16) is fixedly connected to a hand wheel (9), and the other side of the screw rod (16) is movably connected to a movable jacket (15).

3. The device for precisely measuring the inner hole size of a suction tip according to claim 1, characterized in that: Two groups of fixing seats (5) are fixedly connected to the top of one side of the device body (1), and the fixing seats (5) are respectively located at the tops of both sides of the groove (11), and a connecting plate (6) is arranged between the fixing seats (5).

4. The device for precisely measuring the inner hole size of a suction tip according to claim 3, characterized in that: External plug rods (8) are fixedly connected to both sides of the connection plate (6), and the external plug rods (8) are plugged into the interior of the fixing seat (5). A scale (7) is fixedly connected to the surface of the connection plate (6).

5. The device for precisely measuring the inner hole size of a suction tip according to claim 3, characterized in that: A circle of positioning plate (21) is fixedly connected to the outside of one side of the connecting plate (6), and a movable plate (17) is sleeved on the outside of the other side of the connecting plate (6). A balancing block (18) is fixedly connected to the front end of the movable plate (17), and the balancing block (18) is slidably connected to the front end of the connecting plate (6). A fixing rod (20) is penetrated through the front end of the movable plate (17), and a push block (19) is fixedly connected to the front end of the fixing rod (20), and the rear end of the fixing rod (20) is plugged and connected to the inside of the connecting plate (6).

6. The device for precisely measuring the inner hole size of a suction tip according to claim 1, characterized in that: The top and bottom ends of the outer side of the device body (1) are fixedly connected to connection seats (2), and an anti-slip handle (3) is vertically arranged between the connection seats (2).

7. The device for precisely measuring the inner hole size of a suction tip according to claim 6, characterized in that: The top and bottom ends of the anti-slip handle (3) are fixedly connected to a reinforced outer layer (25), the inner wall of the connecting seat (2) is fixedly connected to a plurality of sets of inner connecting seats (22), and the inner ends of the inner connecting seats (22) are provided with guide grooves (24).

8. The device for precisely measuring the inner hole size of a suction tip according to claim 7, characterized in that: The exterior of the reinforced outer layer (25) is fixedly connected to a plurality of groups of plug-in plates (23), and the plug-in plates (23) are plug-connected to the interior of the internal connection seat (22).

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