Variable spacing adaptation device for multi-row pipettor

Abstract

The utility model discloses a variable spacing adaptation device for a multi-row pipettor, which comprises a handheld part, a machine body is mounted at the bottom of the handheld part, a detachable mounting part is mounted at the bottom of the machine body, a top plate capable of sliding up and down is mounted in the machine body, a position-adjustable fixing rod is mounted at the bottom of the top plate, and a plurality of fixing holes are formed in the bottom of the fixing rod. Through grooves are formed in the top of the mounting part at equal intervals, and detachable gun heads are mounted in the through grooves. When the distance between the gun heads needs to be adjusted, a worker only needs to stir the connecting rod to move in the movable hole to drive the movable block to move so as to drive the gun heads to move synchronously, and the distance between the gun heads can be manually controlled; when the gun head needs to be adjusted, the threaded rod only needs to be moved towards the movable block, at the moment, the protruding end of the threaded rod extrudes the surface of the mounting part to be fixed, and free adjusting and fixing of the gun head are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipettes, in particular to a variable spacing adapter device for multi-row pipettes. Background Art

[0002] A pipette, also known as a pipette gun, is an essential tool for sample collection and transfer during analysis processes such as biological, chemical and clinical experiments. Pipette can be divided into single-channel pipette and multi-channel pipette according to the number of samples that can be transferred at one time. A single-channel pipette can only transfer one sample at a time, and a multi-channel pipette has at least two channels. The use of multi-channel pipette can reduce the number of operations for experimental operators.

[0003] Most of the multi-channel pipettes in the prior art have non-adjustable spacing. When encountering multi-channel pipetting between multiple containers with different spacings, other methods have to be used to complete it, such as transferring the multi-channel pipetting between multiple containers with different spacings to multiple containers with the same spacing, and then sampling, which is time-consuming and laborious.

[0004] Therefore, it is necessary to provide a variable spacing adapter for a multi-row pipette to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a variable spacing adapter device for a multi-row pipette to solve the problems existing in the above-mentioned background technology. The technical solution of the utility model aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a variable spacing adapter device for a multi-row pipette, comprising a hand-held part, a body is installed at the bottom of the hand-held part, a detachable mounting part is installed at the bottom of the body, a top plate that can slide up and down is installed inside the body, a fixed rod with adjustable position is installed at the bottom of the top plate, through grooves are equidistantly provided on the top of the mounting part, and grooves are connected at the upper and lower ends of both sides of the through groove, a movable block is installed inside the groove, a connecting rod that does not extend out of the front end face of the mounting part is installed at the front end of the movable block on the right side, the front end face of the mounting part is provided with a movable hole suitable for the movement of the connecting rod, the front end face of the connecting rod is threadedly connected to a threaded rod, a protruding end is provided at the end of the threaded rod away from the mounting part, and a detachable gun head is installed inside the through groove.

[0007] Preferably, first mounting seats are installed at the bottom of both ends of the body, and second mounting seats are installed at the top of both ends of the mounting portion, and the first mounting seat and the second mounting seat are connected by a screw.

[0008] Preferably, a connecting seat penetrating the bottom is installed at the bottom of the top plate, and limiting grooves are provided at the front and rear ends of the inner side of the connecting seat. A limiting block is installed inside the limiting groove, and the limiting block is connected to a fixing seat fixed to the outer wall of the fixing rod on the side facing the fixing rod.

[0009] Preferably, one end of the movable block facing the gun head is connected to a clamping plate for clamping the gun head.

[0010] Preferably, a spring is connected to a side of the lower slot away from the gun head, and the other end of the spring is fixed to one end of the movable block.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model fixes the gun head by the clamping plate, so that the gun head and the mounting part are detachably connected. When the gun head is damaged or needs to be replaced with a gun head of a different size, the operation is convenient and the cost is reduced. When the work of the gun head needs to be reduced, it is only necessary to move the gun head upward and then clamp and fix it, which is simple and convenient.

[0013] 2. When the distance between the gun heads needs to be adjusted, the utility model only needs the staff to move the connecting rod inside the movable hole to drive the movable block to move, thereby driving the gun heads to move synchronously. The distance between the gun heads can be controlled manually. When the position of the gun heads needs to be fixed, it is only necessary to move the threaded rod toward the direction of the movable block. At this time, the protruding end of the threaded rod will be pressed against the surface of the mounting portion for fixation, thereby realizing the free adjustment and fixation of the gun heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the utility model separated from the installation part;

[0016] Figure 3 It is a cross-sectional perspective view of the connection between the body and the mounting part of the utility model;

[0017] Figure 4 It is a cross-sectional separation diagram of the body of the utility model;

[0018] Figure 5 It is a front view structural schematic diagram of the utility model.

[0019] In the figure: 1. Hand-held part; 2. Machine body; 3. Mounting part; 4. Top plate; 5. Fixing rod; 6. Through slot; 7. Gun head; 8. First mounting seat; 9. Second mounting seat; 10. Screw rod; 11. Connecting seat; 12. Limiting slot; 13. Limiting block; 14. Fixing seat; 15. Slot; 16. Movable block; 17. Clamping plate; 18. Spring; 19. Connecting rod; 20. Movable hole; 21. Threaded rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 A variable spacing adapter device for a multi-row pipette comprises a handheld portion 1, a body 2 is mounted at the bottom of the handheld portion 1, a detachable mounting portion 3 is mounted at the bottom of the body 2, a top plate 4 which can slide up and down is mounted inside the body 2, a suction rod arranged on the handheld portion 1 passes through the inside of the body 2 and is connected to the top of the top plate 4, a fixed rod 5 with an adjustable position is mounted at the bottom of the top plate 4, through grooves 6 are equidistantly provided on the top of the mounting portion 3, and a detachable gun head 7 is mounted inside the through groove 6.

[0022] like Figure 1-5 As shown, first mounting seats 8 are installed at the bottom of both ends of the body 2, and second mounting seats 9 are installed at the top of both ends of the mounting part 3. The first mounting seats 8 and the second mounting seats 9 are connected by screws 10. The first mounting seats 8 and the second mounting seats 9 make the body 2 and the mounting part 3 a detachable structure, which can be freely replaced when the mounting part 3 is damaged, thereby reducing the damage cost.

[0023] like Figure 1-5 As shown, a connecting seat 11 penetrating through the bottom is installed at the bottom of the top plate 4, and a limiting groove 12 is provided at the front and rear ends of the inner side of the connecting seat 11, and a limiting block 13 is installed inside the limiting groove 12. The limiting block 13 is connected to a fixing seat 14 fixed to the outer wall of the fixing rod 5 on the side facing the fixing rod 5. The setting of the limiting groove 12 and the limiting block 13 allows the fixing rod 5 to move freely left and right. When the spacing of the gun head 7 is adjusted, the fixing rod 5 can be driven to move synchronously.

[0024] like Figure 1-5As shown, the upper and lower ends of both sides of the through slot 6 are connected to each other and are provided with slots 15, and a movable block 16 is installed inside the slot 15. The end of the movable block 16 facing the gun head 7 is connected to a clamping plate (17) for clamping the gun head 7. The two clamping plates 17 can clamp and fix the gun head 7 inside the through slot 6, and then the position of the gun head 7 inside the through slot 6 can be controlled by controlling the left and right movement of a group of movable blocks 16, that is, the distance between two groups of adjacent gun heads 7 can be controlled, which can be applied to different working environments.

[0025] like Figure 1-5 As shown, a spring 18 is connected to the side of the lower slot 15 away from the gun head 7, and the other end of the spring 18 is fixed to one end of the movable block 16. A connecting rod 19 penetrating the front end face of the mounting portion 3 is installed at the front end of the movable block 16 on the right. The front end face of the connecting rod 19 is a distance away from the front end face of the mounting portion. A movable hole 20 suitable for the movement of the connecting rod 19 is provided on the front end face of the mounting portion 3. When it is necessary to adjust the spacing between the gun heads 7, the staff only needs to move the connecting rod 19 inside the movable hole 20 to drive the gun heads 7 to move synchronously, and the spacing between the gun heads 7 can be artificially controlled.

[0026] like Figure 1-5 As shown, the front end face of the connecting rod 19 is threadedly connected with a threaded rod 21, and a protruding end is provided at one end of the threaded rod 21 away from the mounting portion. By threading the threaded rod 21 on the front end face of the connecting rod 19, when the position of the gun head 7 needs to be fixed, it is only necessary to move the threaded rod 21 toward the direction of the movable block 16. At this time, the protruding end of the threaded rod 21 will move toward the front end face of the mounting portion 3. Since the front end face of the connecting rod 19 is set to have a certain distance from the front end face of the mounting portion 3, the distance that the threaded rod 21 moves toward the mounting portion 3 is large. When the protruding end of the threaded rod is squeezed on the surface of the mounting portion 3, a certain pressure is exerted on the front end face of the mounting portion to compact and fix it. Since the front end face of the connecting rod 19 is at a distance from the front end face of the mounting portion 3, the threaded rod can be continuously rotated at this time to increase the pressure on the mounting portion 3. During use, the protruding end of the threaded rod 21 can be enlarged to increase the friction between the mounting portion 3, and rubber can be provided on the side of the protruding end of the threaded rod 21 facing the mounting portion 3 according to needs during use to reduce the wear of the threaded rod 21 on the mounting portion 3.

[0027] Working principle: When in use, the mounting part 3 is fixed to the bottom of the body 2 by the first mounting seat 8 and the second mounting seat 9. At this time, the fixing rod 5 is inserted into the inside of the gun head 7. When sampling is needed, the suction rod set on the top of the hand-held part 1 needs to be pushed upward to drive the top plate 4 to move upward, which can drive the fixing rod 5 to move upward inside the gun head 7 to form a negative pressure, thereby absorbing the sample into the inside of the gun head 7. When the spacing between the gun heads 7 needs to be adjusted, the staff only needs to push the connecting rod 19 to move inside the movable hole 20 to drive the movable block 16 to move, thereby driving the gun head 7 to move synchronously. The spacing between the gun heads 7 can be controlled artificially. When the position of the gun head 7 needs to be fixed, it is only necessary to move the threaded rod 21 toward the direction of the movable block 16. At this time, the protruding end of the threaded rod 21 will be squeezed on the surface of the mounting part 3 for fixation. The protruding end of the threaded rod 21 can be enlarged to increase the friction between the mounting part 3, and rubber can be connected to the side of the protruding end of the threaded rod 21 facing the mounting part 3 to reduce the wear of the threaded rod 21 on the mounting part 3.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A variable spacing adapter for a multi-row pipette, comprising a handheld portion (1), characterized in that: A body (2) is mounted at the bottom of the handheld portion (1), a detachable mounting portion (3) is mounted at the bottom of the body (2), a top plate (4) that can slide up and down is mounted inside the body (2), a fixed rod (5) whose position can be adjusted is mounted at the bottom of the top plate (4), through slots (6) are equidistantly provided at the top of the mounting portion (3), slots (15) are provided at both sides of the through slots (6) at the upper and lower ends thereof, a movable block (16) is mounted inside the slots (15), a connecting rod (19) that does not extend beyond the front end surface of the mounting portion (3) is mounted at the front end of the right movable block (16), a movable hole (20) suitable for the movement of the connecting rod (19) is provided at the front end surface of the mounting portion (3), a threaded rod (21) is threadedly connected to the front end surface of the connecting rod (19), a protruding end is provided at the end of the threaded rod (21) away from the mounting portion, and a detachable gun head (7) is mounted inside the through slot (6).

2. A variable spacing adapter for a multi-row pipette according to claim 1, characterized in that: First mounting seats (8) are installed at the bottom of both ends of the machine body (2), and second mounting seats (9) are installed at the top of both ends of the mounting portion (3), and the first mounting seat (8) and the second mounting seat (9) are connected by means of screw rods (10).

3. A variable spacing adapter for a multi-row pipette according to claim 2, characterized in that: A connecting seat (11) penetrating the bottom is installed at the bottom of the top plate (4), and a limiting groove (12) is provided at the front and rear ends of the inner side of the connecting seat (11), and a limiting block (13) is installed inside the limiting groove (12), and a fixing seat (14) fixed to the outer wall of the fixing rod (5) is connected to the side of the limiting block (13) facing the fixing rod (5).

4. A variable spacing adapter for a multi-row pipette according to claim 3, characterized in that: One end of the movable block (16) facing the gun head (7) is connected to a clamping plate (17) for clamping the gun head (7).

5. A variable spacing adapter for a multi-row pipette according to claim 4, characterized in that: A spring (18) is connected to the side of the lower slot (15) away from the gun head (7), and the other end of the spring (18) is fixed to one end of the movable block (16).

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