Pipette support

Abstract

The utility model discloses a pipette support, which relates to the technical field of chemical experiments, and has the technical key points that the pipette support comprises a supporting plate and four foot pads fixedly arranged on the bottom surface of the supporting plate, a placing mechanism and a lifting mechanism are arranged above the supporting plate, and the placing mechanism comprises a clamping part and a positioning part; the device has the technical effects that the placing mechanism is arranged to fix a transfer pipette when the transfer pipette is placed, and two clamping rings can be close to each other by arranging two springs and two dampers during fixing, so that the inner side surfaces of the two clamping rings can be in contact with the surface of the transfer pipette to clamp and fix the transfer pipette; and the inner side face of the extrusion ring is controlled to make contact with the surface of the transfer pipette, so that the transfer pipette can be in a vertical state in the placing process, and the bottom of the transfer pipette can be supported in the taking process.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical experiments, in particular to a pipette support. Background Art

[0002] A pipette is a measuring instrument used to accurately transfer a certain volume of solution. A pipette is a measuring instrument that is only used to measure the volume of the solution it releases. It is a thin glass tube with a bulge in the middle. Its lower end is pointed, and there is a mark on the neck of the upper end, which is a mark of the exact volume taken;

[0003] When placing a pipette, a pipette stand is needed. The pipette stand is an indispensable auxiliary device for chemical experiments in chemical laboratories. The pipette is usually placed in the pipette stand in a vertical or horizontal position.

[0004] The pipette holder in the prior art is placed by a multi-layer hole structure, but since the pipette itself is made of glass and some pipettes are thin, the pipette cannot be supported when placed inside the positioning plate. If the angle is not right when taking it, there is a risk of the pipette breaking. Therefore, a pipette holder is proposed. Utility Model Content

[0005] To achieve the above object, the utility model provides the following technical solution: a pipette stand, comprising a support plate and four foot pads fixedly arranged on the bottom surface of the support plate, a placing mechanism is arranged above the support plate, and a lifting mechanism is fixedly arranged on the side of the support plate;

[0006] The placement mechanism includes a clamping portion and a positioning portion; the positioning portion includes a positioning plate and a fixing rod; the clamping portion is located below the positioning plate and includes two elastic members mounted on the fixing rod and a lower pressure ring fixedly connected to the elastic members; the positioning plate of the placement mechanism is rotatably connected to the lifting mechanism, and the lifting mechanism is used to drive the positioning plate of the placement mechanism to move up and down;

[0007] The bottom surface of the fixing rod is fixedly connected to the top surface of the support plate, and the top surface of the fixing rod slides through the bottom surface of the positioning plate and extends to the top of the positioning plate. A plurality of placement holes are evenly penetrated through the top surface of the positioning plate along the circumferential direction. A fixing sleeve is provided on the surface of the fixing rod. A plurality of fixing sleeves corresponding to the placement holes are fixedly distributed along the circumferential direction on the top surface of the fixing plate. An elastic telescopic rod is slidably provided on the inner side surface of each fixing sleeve. The free end of the lower pressure ring is used to provide lateral force to the elastic telescopic rod. An extrusion ring is fixedly provided on the outer end surface of each elastic telescopic rod, and the extrusion ring is used to squeeze the side wall of the pipette.

[0008] Preferably, the lifting mechanism comprises a second support plate, the right side of the second support plate is fixedly connected to the side of the support plate, a threaded sleeve is fixedly arranged on the top of the second support plate, a threaded rod is threadedly arranged on the inner side of the threaded sleeve, a control plate is arranged on the surface of the threaded rod through a bearing seat rotation sleeve, and the right side of the control plate is fixedly connected to the surface of the positioning plate.

[0009] Preferably, a fixing plate is fixedly provided on the bottom surface of the positioning plate and on both sides of each of the placement holes, dampers and springs are fixedly provided on opposite sides of the two fixing plates arranged on both sides of the placement holes, the spring is sleeved on the damper, and connecting plates are fixedly provided on the end surfaces of the damper away from the fixing plates, and clamping rings are fixedly provided on opposite sides of the two connecting plates, and the two clamping rings are used to clamp and position the pipette.

[0010] Preferably, a plurality of placement grooves are provided on the top surface of the support plate and correspond to the positions of the placement holes.

[0011] Preferably, a supporting plate is provided on the fixed sleeve on the surface of the fixed rod, and a pressure plate is provided on the sliding sleeve on the surface of the fixed rod. The bottom surface of the supporting plate is fixedly connected to the top surfaces of two elastic parts, the bottom surfaces of the two elastic parts are fixedly connected to the top surfaces of the pressure plates, and the bottom surface of the pressure plates is fixedly connected to the top surface of the lower pressure ring. The pressure plate squeezes the inner end of the elastic telescopic rod through the lower pressure ring, thereby driving the elastic telescopic rod to slide outward in the fixed sleeve.

[0012] Preferably, an extrusion block is fixedly provided on the inner end surface of each elastic telescopic rod, and the inclined surface of the lower pressure ring is slidably connected to the inclined surface of each extrusion block.

[0013] Preferably, a first support plate is fixedly provided on the side of the support plate, a positioning plate is vertically provided on the top surface of the first support plate, a positioning frame is fixedly provided on the side of the positioning plate, the surface of the positioning plate is slidably connected to the inner side of the positioning frame, and a turntable is fixedly provided on the top surface of the threaded rod.

[0014] Compared with the prior art, the utility model provides a pipette holder, which has the following beneficial effects:

[0015] 1. The placement mechanism can be provided to fix the pipette when it is placed. When fixed, two springs and two dampers can be provided to make the two clamping rings close to each other, so that the inner sides of the two clamping rings can contact the surface of the pipette to clamp and fix it. Therefore, the pipette will not shake when it is collided when placed. By controlling the inner side of the squeezing ring to contact the surface of the pipette, the pipette can be in a vertical state during the placement process, and the bottom of the pipette can be supported during the picking process, so that the pipette will not break when it is picked up.

[0016] 2. The height of the positioning plate can be adjusted by providing a lifting mechanism, so that it can be better when placing pipettes of different heights, making it more practical. By providing a positioning frame and a positioning plate, the positioning plate can be more stable when adjusting the height up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the right side of the utility model;

[0018] Figure 2 This is a bottom-up stereoscopic schematic diagram of the utility model;

[0019] Figure 3 It is a partially cutaway perspective schematic diagram of the front side of the utility model;

[0020] Figure 4 For this utility model Figure 2 The enlarged three-dimensional schematic diagram of the middle A area;

[0021] Figure 5 For this utility model Figure 3 Enlarged three-dimensional schematic diagram of area B in the middle.

[0022] In the figure: 1 support plate, 2 placement mechanism, 21 positioning plate, 22 fixing rod, 23 fixing plate, 24 elastic member, 25 support plate, 26 pressure plate, 27 elastic telescopic rod, 28 extrusion ring, 29 fixing sleeve, 210 connecting plate, 211 clamping ring, 212 spring, 213 damper, 214 fixing plate, 215 lower pressure ring, 216 extrusion block, 3 lifting mechanism, 31 positioning frame, 32 positioning plate, 33 first supporting plate, 34 second supporting plate, 35 threaded sleeve, 36 control plate, 37 threaded rod, 38 turntable, 4 foot pad. DETAILED DESCRIPTION

[0023] 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.

[0024] Example 1

[0025] like Figure 1-Figure 5 As shown, this embodiment proposes a pipette stand, including a support plate 1 and four foot pads 4 fixedly arranged on the bottom surface of the support plate 1, a placing mechanism 2 is arranged above the support plate 1, and a lifting mechanism 3 is fixedly arranged on the side of the support plate 1;

[0026] The placement mechanism 2 includes a clamping portion and a positioning portion, and the positioning portion includes a positioning plate 21 and a fixing rod 22; the clamping portion is located below the positioning plate 21 and includes two elastic members 24 mounted on the fixing rod 22 and a lower pressure ring 215 fixedly connected to the elastic members 24; the positioning plate 21 of the placement mechanism 2 is rotatably connected to the lifting mechanism 3, and the lifting mechanism 3 is used to drive the positioning plate 21 of the placement mechanism 2 to move up and down;

[0027] The bottom surface of the fixed rod 22 is fixedly connected to the top surface of the support plate 1, and the top surface of the fixed rod 22 slides through the bottom surface of the positioning disk 21 and extends to the top of the positioning disk 21. A plurality of placement holes are evenly penetrated on the top surface of the positioning disk 21 along the circumferential direction. A fixed sleeve is provided on the surface of the fixed rod 22. A plurality of fixed sleeves 29 corresponding to the placement holes are fixedly distributed on the top surface of the fixed disk 23 along the circumferential direction. An elastic telescopic rod 27 is slidably provided on the inner side surface of each fixed sleeve 29. The free end of the lower pressure ring 215 is used to provide lateral force to the elastic telescopic rod 27. An extrusion ring 28 is fixedly provided on the outer end surface of each elastic telescopic rod 27. The extrusion ring 28 is used to squeeze the side wall of the pipette. A fixed plate 214 is fixedly provided on the bottom surface of the positioning disk 21 and on both sides of each placement hole. A damper 213 and a spring 212 are fixedly provided on the opposite sides of the two fixed plates 214 provided on both sides of the placement hole. The spring 212 is sleeved on the damper 213. The damper The end surfaces 213 away from the fixed plate 214 are respectively fixedly provided with connecting plates 210, and the opposite sides of the two connecting plates 210 are respectively fixedly provided with clamping rings 211. The two clamping rings 211 are used to realize the clamping and positioning of the pipette. A plurality of placement grooves are provided on the top surface of the support plate 1 and corresponding to the positions of the placement holes. A supporting plate 25 is fixedly sleeved on the surface of the fixed rod 22, and a pressure plate 26 is slidingly sleeved on the surface of the fixed rod 22. The bottom surfaces of the supporting plate 25 are fixedly connected to the top surfaces of the two elastic members 24, and the bottom surfaces of the two elastic members 24 are fixedly connected to the top surfaces of the pressure plates 26. The pressure plates 26 are used to squeeze the inner ends of the elastic telescopic rods 27, thereby driving the elastic telescopic rods 27 to slide outward in the fixed sleeve 29. The inner end surface of each elastic telescopic rod 27 is fixedly provided with an extrusion block 216, and the bottom surface 1 of the pressure plate 26 is fixedly connected to the top surface of the lower pressure ring 215, and the inclined surfaces of the lower pressure ring 215 are respectively slidably connected to the inclined surfaces of each extrusion block 216.

[0028] In this embodiment, the placement mechanism 2 is provided to fix the pipette when it is placed. When fixed, two springs 212 and two dampers 213 are provided to allow the two clamping rings 211 to be close to each other, so that the inner sides of the two clamping rings 211 can contact the surface of the pipette to clamp and fix it. Therefore, the pipette will not shake when it is collided when placed. By controlling the inner side of the squeezing ring 28 to contact the surface of the pipette, the pipette can be in a vertical state during the placement process, and the bottom of the pipette can be supported during the picking process, so that the pipette will not break when it is picked up.

[0029] Example 2

[0030] like Figure 1-Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the lifting mechanism 3 includes a second support plate 34, the right side surface of the second support plate 34 is fixedly connected to the side surface of the support plate 1, the top surface of the second support plate 34 is fixedly provided with a threaded sleeve 35, the inner side surface of the threaded sleeve 35 is threadedly provided with a threaded rod 37, the surface of the threaded rod 37 is provided with a control plate 36 through a bearing seat rotation sleeve, the right side surface of the control plate 36 is fixedly connected to the surface of the positioning disk 21, the side of the support plate 1 is fixedly provided with a first support plate 33, the top surface of the first support plate 33 is vertically provided with a positioning plate 32, the side of the positioning disk 21 is fixedly provided with a positioning frame 31, the surface of the positioning plate 32 is slidably connected to the inner side surface of the positioning frame 31, and the top surface of the threaded rod 37 is fixedly provided with a turntable 38.

[0031] In this embodiment, the height of the positioning plate 21 can be adjusted by providing a lifting mechanism 3, so that it can be better when placing pipettes of different heights, making it more practical. By providing a positioning frame 31 and a positioning plate 32, the positioning plate 21 can be more stable when adjusting the height up and down.

[0032] When in use, the threaded rod 37 can be rotated by rotating the turntable 38, and the threaded rod 37 can be moved up and down through the threaded sleeve 35 when the threaded rod 37 rotates. When the threaded rod 37 moves up and down, the positioning plate 21 can be moved up and down through the bearing seat and the control plate 36. After the positioning plate 21 is adjusted, the bottom surface of the pipette is passed through the placement hole to contact the inner wall of the placement groove. The two clamping rings 211 can be brought close to each other through the two springs 212 and the two dampers 213, so that the inner sides of the two clamping rings 211 can contact the surface of the pipette to clamp and fix it. The pressure plate 26 can be moved downward by the two elastic members 24. When the pressure plate 26 moves downward a little, it can drive the lower pressure ring 215 to move downward synchronously. When the lower pressure ring 215 moves downward, it can squeeze the extrusion block 216, so that the telescopic rod 27 can move toward the outside, so that the inner side of the extrusion ring 28 can contact the surface of the pipette, so that it is in a vertical state when placed.

[0033] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A pipette stand, comprising a support plate (1) and four foot pads (4) fixedly arranged on the bottom surface of the support plate (1), characterized in that: A placement mechanism (2) is provided above the support plate (1), and a lifting mechanism (3) is fixedly provided on the side of the support plate (1); The placement mechanism (2) comprises a clamping portion and a positioning portion; the positioning portion comprises a positioning plate (21) and a fixing rod (22); the clamping portion is located below the positioning plate (21) and comprises two elastic members (24) mounted on the fixing rod (22) and a lower pressure ring (215) fixedly connected to the elastic members (24); the positioning plate (21) of the placement mechanism (2) is rotatably connected to the lifting mechanism (3), and the lifting mechanism (3) is used to drive the positioning plate (21) of the placement mechanism (2) to move up and down; The bottom surface of the fixing rod (22) is fixedly connected to the top surface of the support plate (1); the top surface of the fixing rod (22) slides through the bottom surface of the positioning plate (21) and extends to the top of the positioning plate (21); a plurality of placement holes are evenly penetrated through the top surface of the positioning plate (21) along the circumferential direction; a fixing plate (23) is fixedly sleeved on the surface of the fixing rod (22); a plurality of fixing sleeves (29) corresponding to the placement holes are fixedly distributed along the circumferential direction on the top surface of the fixing plate (23); an elastic telescopic rod (27) is slidably arranged on the inner side surface of each fixing sleeve (29); the free end of the lower pressure ring (215) is used to provide a lateral force to the elastic telescopic rod (27); and an extrusion ring (28) is fixedly arranged on the outer end surface of each elastic telescopic rod (27); the extrusion ring (28) is used to squeeze the side wall of the pipette.

2. The pipette holder according to claim 1, characterized in that: The lifting mechanism (3) comprises a second support plate (34), the right side surface of the second support plate (34) is fixedly connected to the side surface of the support plate (1), a threaded sleeve (35) is fixedly arranged on the top surface of the second support plate (34), a threaded rod (37) is threadedly arranged on the inner side surface of the threaded sleeve (35), a control plate (36) is rotatably sleeved on the surface of the threaded rod (37) through a bearing seat, and the right side surface of the control plate (36) is fixedly connected to the surface of the positioning plate (21).

3. The pipette holder according to claim 1, characterized in that: A fixing plate (214) is fixedly arranged on the bottom surface of the positioning plate (21) and on both sides of each of the placement holes; dampers (213) and springs (212) are fixedly arranged on opposite sides of the two fixing plates (214) arranged on both sides of the placement holes; the spring (212) is sleeved on the damper (213); a connecting plate (210) is fixedly arranged on the end surface of the damper (213) away from the fixing plate (214); clamping rings (211) are fixedly arranged on opposite sides of the two connecting plates (210); the two clamping rings (211) are used to clamp and position the pipette.

4. The pipette holder according to claim 3, characterized in that: A plurality of placement grooves are provided on the top surface of the support plate (1) and correspond to the positions of the placement holes.

5. The pipette holder according to claim 1, characterized in that: A support plate (25) is fixedly sleeved on the surface of the fixed rod (22), and a pressure plate (26) is slidingly sleeved on the surface of the fixed rod (22). The bottom surface of the support plate (25) is fixedly connected to the top surfaces of the two elastic members (24), and the bottom surfaces of the two elastic members (24) are fixedly connected to the top surfaces of the pressure plates (26). The bottom surface of the pressure plates (26) is fixedly connected to the top surface of the lower pressure ring (215). The pressure plate (26) squeezes the inner end of the elastic telescopic rod (27) through the lower pressure ring (215), thereby driving the elastic telescopic rod (27) to slide outward in the fixed sleeve (29).

6. The pipette holder according to claim 5, characterized in that: An extrusion block (216) is fixedly arranged on the inner end surface of each elastic telescopic rod (27), and the inclined surface of the lower pressure ring (215) is slidably connected to the inclined surface of each extrusion block (216).

7. The pipette holder according to claim 2, characterized in that: A first supporting plate (33) is fixedly arranged on the side of the support plate (1), a positioning plate (32) is vertically arranged on the top surface of the first supporting plate (33), a positioning frame (31) is fixedly arranged on the side of the positioning plate (21), the surface of the positioning plate (32) is slidably connected to the inner surface of the positioning frame (31), and a rotating disk (38) is fixedly arranged on the top surface of the threaded rod (37).

Images