Connecting structure of pipettor and pipettor
By using a limit groove and stop rib structure design between the upper and lower body of the pipette, simple and stable connection and disassembly are achieved, solving the problems of inconvenient operation and inaccurate positioning in the prior art, and improving the The disassembly and assembly efficiency of the pipette.
Patent Information
- Application Number
- CN202420081013.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The connecting structure of the existing pipette has problems such as inconvenient operation, inaccurate positioning, misalignment of appearance and large gaps at the connection through threads and snapping structures. The snapping structure is complex and requires additional tools to be disassembled and maintained.
Adopt a disassembly structure including connectors and connecting blocks. Through the coupling of the limit groove formed by the limit groove and the stop rib, the screw-in and guide structure is combined to realize the simple and stable connection and disassembly of the upper body and the lower body of the pipette. .
It improves the disassembly and assembly efficiency of the pipette, has a simple structure and stable connection, reducing operational difficulty and maintenance costs.
Smart Images
Figure CN222219617U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipettes, and in particular relates to a connecting structure of a pipette and a pipette. Background Art
[0002] Existing pipettes mainly connect the upper and lower bodies through threaded structures and snap-fit structures. The threaded structure is inconvenient to operate and has inaccurate positioning, which will cause problems such as appearance dislocation and large gaps at the connection. The snap-fit structure requires the structural space of the pipette to be large enough, and the structure of the snap-fit structure is complex, requiring additional tools to disassemble during maintenance.
[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content
[0004] The utility model aims to provide a connecting structure of a pipette and a pipette, which can improve the disassembly and assembly efficiency of the pipette.
[0005] In order to achieve the above purpose, the technical solution provided by the embodiment of the utility model is as follows:
[0006] A pipette connection structure includes a pipette lower body and a pipette upper body, wherein a coupling hole is provided at one end of the pipette lower body, and a connecting block is provided on the hole wall of the coupling hole. A connecting piece is provided at one end of the pipette upper body, and the connecting piece is located in the coupling hole and is used for clamping with the connecting block, and the connecting piece is used for limiting the movement of the connecting block.
[0007] In one or more embodiments of the present invention, a coupling piece is provided at one end of the pipette upper body, the cross-sectional size of the coupling piece is smaller than the size of the end surface of the pipette upper body, and a connecting piece is provided on the coupling piece, and the coupling piece is detachably assembled in the coupling hole through the connecting piece.
[0008] In one or more embodiments of the present utility model, a limiting groove is provided on the connecting member, the limiting groove is formed by the outer wall of the connecting member being recessed inward, and the connecting block is clamped in the limiting groove.
[0009] In one or more embodiments of the utility model, a stop rib is provided on the circumference of the coupling part, and the connecting part includes a first limiting rib, a second limiting rib and a guide structure, one end of the first limiting rib is connected to one end of the stop rib, the other end of the first limiting rib is connected to one end of the second limiting rib, the other end of the second limiting rib is connected to one end of the guide structure, and the other end of the guide structure is connected to the other end of the stop rib, thereby forming a limiting groove between the stop rib, the first limiting rib, the second limiting rib and the guide structure, and the connecting block can be detachably screwed into the limiting groove through the guide structure.
[0010] In one or more embodiments of the present invention, the connecting block is elastic, and the connecting block is interference fit with the limiting groove, so that the connecting block abuts against the groove wall of the limiting groove.
[0011] In one or more embodiments of the present invention, the guiding structure includes a stop rib, and the distance between the outer side of the stop rib and the outer wall of the coupling member is smaller than the distance between the outer side of the first limiting rib, the outer side of the second limiting rib, and the outer side of the stop rib and the outer wall of the coupling member.
[0012] In one or more embodiments of the present invention, an inclined first guide surface is provided at the end of the stop rib away from the limiting groove, one end of the first guide surface extends to the outer wall of the coupling, and the other end of the first guide surface is inclined toward the limiting groove.
[0013] In one or more embodiments of the present invention, an inclined second guide surface is provided at the end of the stop rib close to the limiting groove, and the second guide surface is inclined in a direction away from the limiting groove.
[0014] In one or more embodiments of the present invention, two pairs of connecting members and connecting blocks are provided, the connecting members are symmetrically arranged on both sides of the combining member, and the connecting blocks are symmetrically arranged on the hole wall of the combining hole.
[0015] In one or more embodiments of the present invention, a limiting strip is provided on the hole wall of the combining hole, the limiting strip is provided on one side of the connecting block, and the limiting strip is provided close to the connecting piece.
[0016] A pipette comprises the connection structure of the pipette.
[0017] Compared with the prior art, the connection structure of the pipette and the structure of the pipette in the embodiment of the utility model are simple, the connection is stable, and the disassembly and assembly efficiency of the pipette can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A three-dimensional diagram of a pipette in one embodiment of the utility model;
[0020] Figure 2 It is a three-dimensional diagram of the upper body of the pipette in one embodiment of the utility model;
[0021] Figure 3It is a three-dimensional diagram of the lower body of the pipette in one embodiment of the utility model;
[0022] Figure 4 It is a cross-sectional view of a connecting member and a connecting block in one embodiment of the utility model;
[0023] Figure 5 It is a cross-sectional view of a stop rib in one embodiment of the utility model.
[0024] Explanation of main figure marks: 1. upper body of pipette, 11. combining part, 12. connecting part, 121. first limiting rib, 122. second limiting rib, 123. guiding structure, 1231. stop rib, 1232. first guiding surface, 1233. second guiding surface, 13. limiting groove, 14. stop rib, 2. lower body of pipette, 21. combining hole, 22. connecting block, 23. limiting strip. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0026] like Figures 1 to 5 The figure shows a connection structure of a pipette according to an embodiment of the utility model, comprising a pipette upper body 1 and a pipette lower body 2, wherein a coupling hole 21 is provided at one end of the pipette lower body 2, a connecting block 22 is provided on the hole wall of the coupling hole 21, a connecting piece 12 is provided at one end of the pipette upper body 1, the connecting piece 12 is located in the coupling hole 21 and is engaged with the connecting block 22, and the connecting piece 12 is used to limit the movement of the connecting block 22.
[0027] The upper body 1 of the pipette in this embodiment can be a handle or other parts of the pipette, and the lower body 2 of the pipette can be a sleeve or other parts of the pipette. The upper body 1 and the lower body 2 of the pipette are equipped with the necessary components of the pipette, such as a screw assembly, a piston assembly, a counting assembly and a range locking assembly.
[0028] In the above embodiment, the pipette upper body 1 and the pipette lower body 2 can be connected together by the engagement of the connecting member 12 and the connecting block 22. Moreover, after the connecting member 12 and the connecting block 22 are engaged, the connecting member 12 can limit the rotation and movement of the connecting block 22, and can prevent the connecting block 22 from being separated from the connecting member 12, thereby improving the strength and stability of the connection between the pipette upper body 1 and the pipette lower body 2.
[0029] In one embodiment, a coupling member 11 is provided at one end of the pipette upper body 1. The coupling member 11 is a ring-shaped structure. The cross-sectional size of the coupling member 11 is smaller than the size of the end surface of the pipette upper body 1. The connecting member 12 is provided on the coupling member 11. The coupling member 11 is detachably assembled in the coupling hole 21 through the connecting member 12. By connecting the coupling member 11 with the pipette lower body 2, the appearance profile of the pipette upper body 1 can be set to any shape, as long as the shape of the pipette upper body 1 can be adapted to the shape of the pipette lower body 2.
[0030] When assembling the pipette upper body 1 and the pipette lower body 2, a screwing installation method can be adopted in order to quickly combine the connecting piece 12 on the combining piece 11 with the connecting block 22. When screwing, the operator holds the pipette upper body 1 and the pipette lower body 2 with both hands, inserts the combining piece 11 into the combining hole 21, and then rotates the pipette upper body 1 or the pipette lower body 2 so that the connecting block 22 is combined with the connecting piece 12.
[0031] Furthermore, after adopting the screw-on installation method, in order to fix and limit the position of the connecting block 22 after being screwed into the connecting member 12, as shown in FIG. Figure 2 As shown, the connector 12 is provided with a limiting groove 13, which is formed by the outer wall of the connector 12 being recessed toward the inside, and the connecting block 22 is clamped in the limiting groove 13. The connecting block 22 is made of a material with a certain elasticity such as plastic, so when the connecting block 22 is screwed into the connector 12, due to the existence of the screwing force, after the connecting block 22 contacts the connector 12, the connecting block 22 will be deformed to a certain extent, so that the connecting block 22 can enter the limiting groove 13 and form a stable clamping structure.
[0032] In one embodiment, a stop rib 14 is provided in the circumferential direction of the connecting member 12, and the connecting member 12 includes a first limiting rib 121, a second limiting rib 122 and a guide structure 123, one end of the first limiting rib 121 is connected to one end of the stop rib 14, the other end of the first limiting rib 121 is connected to one end of the second limiting rib 122, the other end of the second limiting rib 122 is connected to one end of the guide structure 123, and the other end of the guide structure 123 is connected to the other end of the stop rib 14, thereby forming a limiting groove 13 between the stop rib 14, the first limiting rib 121, the second limiting rib 122 and the guide structure 123, and the connecting block 22 can be detachably screwed into the limiting groove 13 through the guide structure 123, and the resistance of the connecting block 22 being screwed into the limiting groove 13 from the guide structure 123 is relatively small.
[0033] Furthermore, in order to stabilize the position of the connection block 22 after it is screwed into the limiting groove 13 and prevent the connection block 22 from moving at will, the distance between the connection block 22 and the groove wall of the limiting groove 13 should be reduced as much as possible. The connection block 22 may have a certain elasticity, and after the connection block 22 and the limiting groove 13 are interference-fitted, the connection block 22 can be abutted against the groove wall of the limiting groove 13, thereby forming a certain extrusion force around the connection block 22, which can better fix the connection block 22.
[0034] In order to reduce the difficulty of screwing the connecting block 22 into and out of the limiting groove 13, as shown in FIG. Figure 2 and Figure 5 As shown, the guide structure 123 includes a stop rib 1231, and the distance between the outer side of the stop rib 1231 and the outer wall of the coupling member 11 is smaller than the distance between the outer side of the first limiting rib 121, the outer side of the second limiting rib 122, and the outer side of the stop rib 14 and the outer wall of the coupling member 11. Under the condition of ensuring the bonding strength between the connecting block 22 and the limiting groove 13, after the stop rib 1231 with a smaller thickness is set, when the connecting block 22 is screwed into and out of the limiting groove 13 from the stop rib 1231, the deformation and resistance it encounters are relatively small, thereby improving the disassembly and assembly efficiency of the pipette upper body 1 and the pipette lower body 2.
[0035] In one embodiment, in order to further reduce the difficulty of screwing the connection block 22 into the limiting groove 13, an inclined first guide surface 1232 is provided at the end of the stop rib 1231 away from the limiting groove 13, one end of the first guide surface 1232 extends to the outer wall of the coupling member 11, and the other end of the first guide surface 1232 is inclined toward the direction close to the limiting groove 13. In the process of screwing the connection block 22 into the limiting groove 13, when the connection block 22 just contacts the first guide surface 1232, the first guide surface 1232 can provide a larger deformation space for the connection block 22, thereby reducing the resistance encountered when screwing the connection block 22.
[0036] Similarly, in order to further reduce the difficulty of rotating the connecting block 22 out of the limiting groove 13 , an inclined second guide surface 1233 is provided at the end of the stop rib 1231 close to the limiting groove 13 , and the second guide surface 1233 is inclined in a direction away from the limiting groove 13 .
[0037] In one embodiment, in order to improve the connection strength between the pipette lower body 2 and the pipette upper body 1, multiple connecting members 12 and connecting blocks 22 can be provided correspondingly. In particular, two pairs of connecting members 12 and connecting blocks 22 are provided, and the connecting members 12 are symmetrically arranged on both sides of the combining member 11, and the connecting blocks 22 are symmetrically arranged on the hole wall of the combining hole 21.
[0038] like Figure 3As shown, after the connecting block 22 is screwed into the limiting groove 13, in order to prevent the operator from continuing to rotate the pipette upper body 1 or the pipette lower body 2, a limiting component can be provided to increase the resistance of the operator to rotate the pipette upper body 1 or the pipette lower body 2 after the connecting block 22 is screwed into the limiting groove 13. Specifically, a limiting strip 23 is provided on the hole wall of the combining hole 21, and the limiting strip 23 is provided on one side of the connecting block 22. When the connecting block 22 is screwed into the limiting groove 13, the limiting strip 23 is close to the connecting piece 12, and more specifically, the limiting strip 23 is close to the stop rib 1231. After the connecting block 22 is screwed into the limiting groove 13, if the operator continues to rotate the transfer liquid upper body 1 or the pipette lower body 2 in the original direction, the limiting strip 23 can abut against the connecting piece 12, thereby increasing the resistance of the operator to rotate the transfer liquid upper body 1 or the pipette lower body 2, and preventing the operator from using excessive force to screw the connecting block 22 out of the limiting groove 13. In addition, the resistance provided by the limiting strip 23 can also remind the operator to a certain extent that the connecting block 22 has been screwed into the limiting groove 13.
[0039] In another embodiment of the present invention, a pipette is provided, which includes the connection structure of the pipette and other components necessary for achieving the pipetting effect.
[0040] 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 considered 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 considered as limiting the claim to which it relates.
[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A pipette connection structure, characterized in that: include: A pipette lower body (2) is provided with a coupling hole (21) at one end, and a connecting block (22) is provided on the hole wall of the coupling hole (21); and The upper body (1) of the pipette has a connecting piece (12) at one end, the connecting piece (12) is located in the combining hole (21) and is used for engaging with the connecting block (22), and the connecting piece (12) is used for limiting the movement of the connecting block (22).
2. The connecting structure of the pipette according to claim 1, characterized in that: A coupling member (11) is provided at one end of the pipette upper body (1), the cross-sectional dimensions of the coupling member (11) being smaller than the dimensions of the end surface of the pipette upper body (1), the connecting member (12) being provided on the coupling member (11), and the coupling member (11) being detachably assembled in the coupling hole (21) via the connecting member (12).
3. The connecting structure of the pipette according to claim 2, characterized in that: The connecting piece (12) is provided with a limiting groove (13), the limiting groove (13) being formed by the outer wall of the connecting piece (12) being recessed inwardly, and the connecting block (22) is clamped in the limiting groove (13).
4. The connecting structure of the pipette according to claim 3, characterized in that: A stop rib (14) is provided on the circumference of the coupling member (11); the connecting member (12) comprises a first limit rib (121), a second limit rib (122) and a guide structure (123); one end of the first limit rib (121) is connected to one end of the stop rib (14); the other end of the first limit rib (121) is connected to one end of the second limit rib (122); the other end of the second limit rib (122) is connected to one end of the guide structure (123); the other end of the guide structure (123) is connected to the other end of the stop rib (14); thereby forming the limit groove (13) between the stop rib (14), the first limit rib (121), the second limit rib (122) and the guide structure (123); the connecting block (22) is detachably screwed into the limit groove (13) through the guide structure (123).
5. The connecting structure of the pipette according to claim 3, characterized in that: The connecting block (22) is elastic, and is interference-fitted with the limiting groove (13), so that the connecting block (22) abuts against the groove wall of the limiting groove (13).
6. The connecting structure of the pipette according to claim 4, characterized in that: The guide structure (123) comprises a stop rib (1231), and the distance between the outer side of the stop rib (1231) and the outer wall of the coupling member (11) is smaller than the distance between the outer side of the first limiting rib (121), the outer side of the second limiting rib (122), and the outer side of the stop rib (14) and the outer wall of the coupling member (11).
7. The connecting structure of the pipette according to claim 6, characterized in that: An inclined first guide surface (1232) is provided at the end of the stop rib (1231) away from the limiting groove (13), one end of the first guide surface (1232) extends to the outer wall of the coupling member (11), and the other end of the first guide surface (1232) is inclined in a direction close to the limiting groove (13).
8. The connecting structure of the pipette according to claim 6, characterized in that: An inclined second guide surface (1233) is provided at the end of the stop rib (1231) close to the limiting groove (13), and the second guide surface (1233) is inclined in a direction away from the limiting groove (13).
9. The connecting structure of the pipette according to claim 2, characterized in that: The connecting pieces (12) and the connecting blocks (22) are provided in two pairs. The connecting pieces (12) are symmetrically arranged on both sides of the combining piece (11), and the connecting blocks (22) are symmetrically arranged on the hole wall of the combining hole (21).
10. The connecting structure of the pipette according to claim 1, characterized in that: A limiting strip (23) is provided on the hole wall of the combining hole (21), the limiting strip (23) is arranged on one side of the connecting block (22), and the limiting strip (23) is arranged close to the connecting piece (12).
11. A pipette, characterized in that: The invention comprises a connecting structure of a pipette as claimed in any one of claims 1 to 10.