Chemical laboratory pipette holder

Abstract

The utility model discloses a pipette stand for chemical laboratories, and relates to the field of laboratory equipment. The pipette stand for chemical laboratories comprises a base, and also comprises: a connecting shaft connected to the base; two rubber discs, both sleeved on the connecting shaft, wherein a plurality of plug-in slots are equidistantly provided on the circumference of the rubber disc, a plurality of snap-in holes are provided in the plug-in slots, and the diameters of the plurality of snap-in holes are successively decreased; an elastic reset member is sleeved on the connecting shaft and is located between the two rubber discs; the utility model can be used to clamp and fix pipettes of different diameters through a plurality of snap-in holes with successively decreasing diameters on each plug-in slot, and can be used to clamp and fix pipettes of different lengths through the ability to adjust the spacing between the two rubber discs according to the length of the pipette, thereby improving the practicality of the pipette stand.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory equipment, in particular to a liquid transfer gun rack for chemical laboratories. Background Art

[0002] The pipette is one of the commonly used instruments in medicine, chemistry and biology laboratories. It is often used to accurately measure small or trace amounts of liquid in the laboratory. For experimental operations in multiple disciplines such as chemical engineering and medicine that require accurate measurement of liquids, the pipette is an essential experimental tool. The pipette can be used to quantitatively obtain experimental data with good parallel effects each time. The pipette rack is a special tool for placing pipettes of various specifications.

[0003] For example, the utility model patent of patent application No. 201921947950.X, named as a pipette gun stand, discloses a pipette gun stand, which includes a base, a support pole fixed on the base, a pipette gun fixing plate arranged on the support pole, a plurality of pipette gun fixing parts arranged on the pipette gun fixing plate, the support pole is a cylindrical pole, a connecting rod coaxial with the support pole is fixed on the end of the support pole facing away from the base, the diameter of the connecting rod is smaller than the diameter of the support pole, a pipette gun fixing plate coaxially arranged with the support pole is rotatably connected to the connecting rod, the bottom end face of the pipette gun fixing plate contacts the top end face of the support pole; a locking assembly is arranged between the pipette gun fixing plate and the connecting rod, the locking assembly can lock the pipette gun fixing plate to the connecting rod, and limit the rotation of the pipette gun fixing plate. The utility model has the effect of saving walking time for picking up a new pipette gun and improving work efficiency.

[0004] The above patent also has the following defects: since the size of the notch cannot be changed, it can only be used to clamp and fix a specific model of pipette in conjunction with the slot, thereby reducing the practicality of the pipette holder. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a pipette holder for a chemical laboratory which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A pipette holder for chemical laboratories comprises a base, and also comprises: a connecting shaft connected to the base; two rubber discs, both sleeved on the connecting shaft, wherein the rubber disc is provided with a plurality of plug-in slots equidistantly around the circumference, wherein the plug-in slots are provided with a plurality of clamping holes, and the diameters of the plurality of clamping holes decrease in sequence; an elastic reset member, sleeved on the connecting shaft and located between the two rubber discs, wherein both ends of the connecting shaft are threadedly connected with a limiting sleeve, the limiting sleeve abuts against the rubber disc, and is used to push the two rubber discs to move toward each other.

[0008] Preferably, the elastic return member comprises a spring, the spring is sleeved on the connecting shaft, and two ends of the spring are respectively fixedly connected to two rubber discs.

[0009] In order to prevent objects from falling into the spring and affecting the compression of the spring, an organ sleeve is further included. The organ sleeve is sleeved on the spring, and the two ends of the organ sleeve are respectively fixedly connected to two rubber discs.

[0010] In order to facilitate the taking and placing of the pipette gun, preferably, the connecting shaft is rotatably connected to the base, and a locking component for locking the connecting shaft is provided on the base.

[0011] Furthermore, the locking component includes a friction pad and a locking sleeve, the friction pad is fixedly mounted on the base, the locking sleeve is threadedly connected to one end of the connecting shaft passing through the base, and abuts against the friction pad.

[0012] In order to improve the stability of the base when placed on the experimental table, preferably, a plurality of groups of suction cups are fixedly installed on the bottom of the base, and each group of suction cups is provided with a plurality of suction cups.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model can be used to clamp and fix pipettes of different diameters by means of a plurality of clamping holes with decreasing diameters on each plug-in slot when placing the pipette, and can be used to clamp and fix pipettes of different lengths by means of adjusting the spacing between the two rubber disks according to the length of the pipette, thereby improving the practicability of the pipette holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the partial structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the rubber disc structure of the utility model;

[0019] Figure 5 The utility model Figure 1 Enlarged view of part A.

[0020] In the figure: 1, base; 101, suction cup; 2, connecting shaft; 201, rubber disc; 202, plug-in slot; 203, snap-in hole; 204, limit sleeve; 205, spring; 3, organ pipe sleeve; 4, locking sleeve; 401, friction pad. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0022] Embodiment 1:

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The invention discloses a pipette holder for chemical laboratories, comprising a base 1, and further comprising: a connecting shaft 2 connected to the base 1; two rubber discs 201, both of which are sleeved on the connecting shaft 2, wherein a plurality of plug-in slots 202 are equidistantly provided on the circumference of the rubber disc 201, a plurality of clamping holes 203 are provided in the plug-in slots 202, and the diameters of the plurality of clamping holes 203 decrease successively; an elastic reset member, which is sleeved on the connecting shaft 2 and is located between the two rubber discs 201, wherein both ends of the connecting shaft 2 are threadedly connected with a limiting sleeve 204, the limiting sleeve 204 abuts against the rubber disc 201, and is used to push the two rubber discs 201 to move toward each other.

[0024] The elastic reset member includes a spring 205 , which is sleeved on the connecting shaft 2 , and two ends of the spring 205 are fixedly connected to the two rubber discs 201 .

[0025] When placing the pipette, the pipette is inserted into the clamping hole 203 through the insertion groove 202, so as to clamp and fix the pipette, and then the pipette can be stably suspended between the two rubber discs 201;

[0026] When placing a pipette, the plurality of clamping holes 203 with decreasing diameters on each plug slot 202 can be used to clamp and fix pipettes of different diameters, thereby improving the practicality of the pipette holder;

[0027] When there are many pipettes placed, the multiple pipettes are arranged in a circle with the axis of the rubber disk 201 as the center, so that multiple pipettes can be placed on the rubber disk 201. By placing the multiple pipettes in a circle with the axis of the rubber disk 201 as the center, the occupied area of ​​the laboratory table is reduced.

[0028] When placing the pipette, the two limit sleeves 204 are rotated to push the two rubber discs 201 to move toward each other on the connecting shaft 2, and the spring 205 is compressed, so that the spacing between the two rubber discs 201 can be adjusted according to the length of the pipette, so that it can be suitable for clamping and fixing pipettes of different lengths.

[0029] Embodiment 2:

[0030] Reference Figure 1 , Figure 2 and Figure 3 The pipette holder for chemical laboratories is basically the same as that of Example 1. Furthermore, the connecting shaft 2 is rotatably connected to the base 1, and the base 1 is provided with a locking component for locking the connecting shaft 2; through the setting of the rotatable connection between the connecting shaft 2 and the base 1, the two rubber disks 201 for placing the pipettes can rotate synchronously, thereby facilitating the staff to take and place the pipettes.

[0031] The locking component includes a friction pad 401 and a locking sleeve 4. The friction pad 401 is fixedly mounted on the base 1. The locking sleeve 4 is threadedly connected to one end of the connecting shaft 2 that passes through the base 1 and abuts against the friction pad 401. When the pipette gun is not being taken or placed, the locking sleeve 4 is rotated to the side close to the friction pad 401 until the locking sleeve 4 and the friction pad 401 are tightly fitted, thereby limiting the relative rotation between the connecting shaft 2 and the base 1, thereby playing the role of locking the rotation of the rubber disc 201.

[0032] Embodiment 3:

[0033] Reference Figure 1 , Figure 3 The pipette holder for chemical laboratory is basically the same as that of Example 1, and further includes an organ sleeve 3, which is sleeved on the spring 205, and the two ends of the organ sleeve 3 are respectively fixedly connected to the two rubber discs 201; through the setting of the organ sleeve 3, the spring 205 can be covered, thereby preventing objects from falling into the spring 205 and affecting the compression of the spring 205.

[0034] Embodiment 4:

[0035] Reference Figure 1 , Figure 2The pipette holder for chemical laboratories is basically the same as that of Example 1. Furthermore, a plurality of groups of suction cups 101 are fixedly installed on the bottom of the base 1, and each group of suction cups 101 is provided with a plurality of suction cups; through the provision of the plurality of groups of suction cups 101, when the base 1 is placed on the surface of the laboratory bench, the base 1 is adsorbed on the surface of the laboratory bench through the suction cups 101, thereby improving the stability of the base 1 placed on the surface of the laboratory bench.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A pipette holder for chemical laboratories, comprising a base (1), characterized in that: Also includes: A connecting shaft (2) connected to the base (1); Two rubber discs (201) are both sleeved on the connecting shaft (2). The rubber disk (201) is provided with a plurality of plug-in slots (202) at equal intervals on its circumference, the plug-in slots (202) are provided with a plurality of snap-in holes (203), and the diameters of the plurality of snap-in holes (203) decrease in sequence; An elastic reset member is sleeved on the connecting shaft (2) and is located between the two rubber discs (201). Wherein, both ends of the connecting shaft (2) are threadedly connected with a limiting sleeve (204), the limiting sleeve (204) abuts against the rubber disc (201) and is used to push the two rubber discs (201) to move towards each other.

2. The pipette holder for chemical laboratory according to claim 1, characterized in that: The elastic return member comprises a spring (205), the spring (205) is sleeved on the connecting shaft (2), and the two ends of the spring (205) are respectively fixedly connected to two rubber discs (201).

3. The pipette holder for chemical laboratory according to claim 2, characterized in that: It also comprises an organ pipe sleeve (3), wherein the organ pipe sleeve (3) is sleeved on the spring (205), and the two ends of the organ pipe sleeve (3) are respectively fixedly connected to two rubber discs (201).

4. The pipette holder for chemical laboratory according to claim 1, characterized in that: The connecting shaft (2) is rotatably connected to the base (1), and a locking component for locking the connecting shaft (2) is provided on the base (1).

5. The pipette holder for chemical laboratories according to claim 4, characterized in that: The locking component comprises a friction pad (401) and a locking sleeve (4); the friction pad (401) is fixedly mounted on the base (1); the locking sleeve (4) is threadedly connected to one end of the connecting shaft (2) passing through the base (1) and abuts against the friction pad (401).

6. The pipette holder for chemical laboratory according to claim 1, characterized in that: A plurality of groups of suction cups (101) are fixedly mounted on the bottom of the base (1), and each group of suction cups (101) is provided with a plurality of suction cups.

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