Search

CN-224221384-U - Pipette accessory

CN224221384UCN 224221384 UCN224221384 UCN 224221384UCN-224221384-U

Abstract

The utility model relates to the technical field of pipettes, in particular to a pipette accessory. The utility model provides a pipette accessory, which solves the technical problem that an ear washing ball for the pipette accessory in the prior art is inconvenient to operate. A pipette accessory comprises an ear washing ball, a quantifying component and a connecting component, wherein the quantifying component is arranged on the ear washing ball, the connecting component is arranged on the ear washing ball, the quantifying component comprises a support and a quantifying device, the quantifying device is provided with a quantifying groove, when the ear washing ball is pressed, the ear washing ball is pressed through the quantifying groove, the quantifying groove is arranged corresponding to a yielding groove, and the deformation amplitude of the ear washing ball is limited by the yielding groove and the quantifying groove when the ear washing ball is pressed, so that the deformation speed or the deformation amplitude of the ear washing ball can be prevented from being too large, the ear washing ball is easy to operate, and the use performance of the ear washing ball is optimized.

Inventors

  • JIANG CHENGXIN

Assignees

  • 杭州迈恩科技有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (10)

  1. 1. A pipette accessory is characterized by comprising an ear washing ball (1), a quantifying component (2), a connecting component (3) and a quantifying component (2), wherein the quantifying component (2) is arranged on the ear washing ball (1), the connecting component (3) is arranged on the ear washing ball (1), the quantifying component (2) comprises a support (21) arranged in the ear washing ball (1) and a quantifying device (22) arranged outside the ear washing ball (1), the quantifying device (22) is provided with a quantifying groove (221) for limiting the deformation area of the ear washing ball (1) when the ear washing ball (1) is pressed, the quantifying groove (221) penetrates through the ear washing ball (1), the support (21) is provided with a yielding groove (211), and the yielding groove (211) is arranged corresponding to the quantifying groove (221).
  2. 2. The pipette accessory according to claim 1, wherein the number of the quantitative slots (221) is at least two, the relief slots (211) are in one-to-one correspondence with the quantitative slots (221), and each quantitative slot (221) has an independent cross-sectional area.
  3. 3. Pipette accessory according to claim 2, characterized in that a support rib for supporting the ear washing ball (1) is formed between two adjacent relief grooves (211), which support rib is in contact with the inner wall of the ear washing ball (1).
  4. 4. Pipette accessory according to claim 2, characterized in that the gauge (22) comprises a first half and a second half, the first half and the second half cooperating to form the gauge (22), a housing cavity being formed between the gauge (22) and the support (21) for housing the ear washing ball (1).
  5. 5. Pipette accessory according to claim 4, characterized in that the gauge (22) is further provided with a through hole through which the connection assembly (3) passes.
  6. 6. The pipette accessory of claim 5, wherein the first half is welded to the second half or the first half is secured to the second half by a releasable connection.
  7. 7. The pipette accessory of claim 1, wherein the connecting assembly (3) comprises a connecting part (31) connected with the ear washing ball (1), a buffer part (32) arranged on the connecting part (31) and an inserting part (33) arranged on the buffer part (32), a buffer cavity (321) is arranged in the buffer part (32), a connecting cavity (311) is arranged in the connecting part (31), and the inner cavity of the inserting part (33) is communicated with the inner cavity of the ear washing ball (1) sequentially through the buffer cavity (321) and the connecting cavity (311).
  8. 8. The pipette accessory according to claim 7, wherein a flow restrictor (331) is provided in the insertion part (33), the flow restrictor (331) having an air hole (3311) for passing air therethrough, and the diameter of the air hole (3311) is smaller than the minimum diameter of the inner cavity of the insertion part (33).
  9. 9. The pipette accessory according to claim 8, wherein the flow restrictor (331) is a convex ring disposed in the insertion portion (33), and the flow restrictor (331) and the insertion portion (33) are integrally formed.
  10. 10. The pipette accessory of claim 9, wherein the insertion part (33) is in a round table shape, the diameter of the end of the insertion part (33) contacted with the buffer part (32) is larger than the diameter of the end of the insertion part (33) away from the buffer part (32), and the taper of the outer wall of the insertion part (33) is Morse taper.

Description

Pipette accessory Technical Field The utility model relates to the technical field of pipettes, in particular to a pipette accessory. Background ‌ Ear washing ball, also called ear suction ball, is a rubber texture, the upper part is spherical, the lower part is tubular instrument, can blow out a large amount of wind fast through extrusion, is the instrument commonly used in quantitative solution removal in chemistry laboratories, and the ear washing ball is commonly used together with a pipette in the experimental process. The pipette is a measuring instrument commonly used in laboratories for accurately taking a certain volume of liquid, and the working principle is to realize the transfer of the liquid by utilizing pressure difference, which is generally beneficial to the ear washing ball to lead the pipette to generate negative pressure or positive pressure so as to lead the pipette to suck out or output the reagent. The ear washing ball in the prior art is not easy to operate in the operation process, the whole sphere of the ear washing ball can be deformed, the condition of improper operation, such as too high pressing speed, too large deformation amplitude of the ear washing ball and the like, can easily occur in the operation process, and therefore, the pipetting operation is inconvenient. Therefore, the ear washing ball for pipette fittings in the prior art has a technical problem of inconvenient operation. Disclosure of Invention The utility model provides a pipette accessory, which solves the technical problem that an ear washing ball for the pipette accessory in the prior art is inconvenient to operate. Some embodiments employed to solve the above technical problems include: a pipette accessory comprising an ear-washing ball; The quantifying component is arranged on the ear washing ball; The connecting component is arranged on the ear washing ball; The quantitative assembly comprises a support arranged in the ear washing ball and a quantitative device arranged outside the ear washing ball, the quantitative device is provided with a quantitative groove for limiting the deformation area of the ear washing ball when the ear washing ball is pressed, the quantitative groove penetrates through the ear washing ball, the support is provided with a yielding groove, and the yielding groove is correspondingly arranged with the quantitative groove. Preferably, the number of the quantifying grooves is at least two, the giving-up grooves are in one-to-one correspondence with the quantifying grooves, and each quantifying groove has an independent cross-sectional area. Preferably, a supporting rib for supporting the ear washing ball is formed between two adjacent yielding grooves, and the supporting rib is in contact with the inner wall of the ear washing ball. Preferably, the quantitative device comprises a first half part and a second half part, the first half part and the second half part are matched to form the quantitative device, and a containing cavity for containing the ear washing ball is formed between the quantitative device and the support. Preferably, the gauge is further provided with a through hole through which the connection assembly passes. Preferably, the first half is welded to the second half, or the first half is fixed to the second half by a releasable connection. Preferably, the connection assembly comprises a connection part connected with the ear washing ball, a buffer part arranged on the connection part and an inserting part arranged on the buffer part, a buffer cavity is arranged in the buffer part, a connection cavity is arranged in the connection part, and an inner cavity of the inserting part is communicated with an inner cavity of the ear washing ball sequentially through the buffer cavity and the connection cavity. Preferably, a flow restrictor is arranged in the plug-in part, the flow restrictor is provided with a gas hole for allowing gas to pass through, and the diameter of the gas hole is smaller than the minimum diameter of the inner cavity of the plug-in part. Preferably, the flow restrictor is a convex ring arranged in the plug-in part, and the flow restrictor and the plug-in part are of an integrated structure. Preferably, the shape of the plugging portion is a truncated cone, the diameter of one end of the plugging portion, which is contacted with the buffer portion, is larger than the diameter of one end of the plugging portion, which is far away from the buffer portion, and the taper of the outer wall of the plugging portion is Morse taper. Compared with the prior art, the utility model has the following advantages: Through setting up the ration subassembly, the ration subassembly includes support and batcher, and the batcher is provided with the ration groove, when pressing the ear washing ball, presses the ear washing ball through the ration groove to, the ration groove corresponds the setting with the groove of stepping down, and the range of deformation of ear wa