CN215655248U - Liquid transfer gun rack - Google Patents
Liquid transfer gun rack Download PDFInfo
- Publication number
- CN215655248U CN215655248U CN202122080831.2U CN202122080831U CN215655248U CN 215655248 U CN215655248 U CN 215655248U CN 202122080831 U CN202122080831 U CN 202122080831U CN 215655248 U CN215655248 U CN 215655248U
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- Prior art keywords
- sleeve
- knob
- clamping device
- pipette
- motor
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- 239000007788 liquid Substances 0.000 title claims description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000002474 experimental method Methods 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000004247 hand Anatomy 0.000 description 2
- 208000004760 Tenosynovitis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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Abstract
The pipette rack of the utility model comprises a range adjusting device; the range adjusting device comprises a knob clamping device and a power device; the knob clamping device comprises a clamping arm assembly and a sleeve, wherein sliding grooves are uniformly distributed in the top end of the sleeve along the circumferential direction, a first end part of each sliding groove extends into the sleeve, and a second end part of each sliding groove extends to a position which is a certain distance away from the outer circumferential surface of the sleeve; clamping arm assemblies capable of moving along the radial direction of the peripheral surface are uniformly distributed in the sliding grooves; the power device comprises a motor, and an output shaft of the motor is in transmission connection with a rotating shaft fixedly connected with the bottom end of the sleeve. The knob clamping device and the pipette rack are integrated, the space utilization rate of the experiment table is increased, the taking is convenient, the single-hand operation of range adjustment can be realized, the clamping arm assembly is simple in structure, the knob can be self-adapted to range adjustment knobs with different outer diameters for clamping, and the range adjustment function can be realized for pipette guns of different brands and specifications on the market.
Description
Technical Field
The utility model belongs to the field of biological and chemical laboratory equipment, and particularly relates to a liquid transfer gun rack.
Background
Pipette guns are a type of pipettor commonly used in laboratories for the pipetting of small or minute quantities of liquids. Taking a 10-1000 mu L pipette as an example, the knob needs 9 circles to rotate from the maximum range to the minimum range, and needs to rotate 9 circles again to reset to the initial range after use. For the test personnel who undertake a large number of tasks every day, span adjustment has become a considerable amount of work.
For most technicians, the range of the pipette can be quickly adjusted by matching two hands. Before the laboratory technician moved the reagent, need adjust the range to the scale of needs, handheld reagent of waiting to move of reagent again, handheld pipette gun moves the operation of getting in one hand. However, when the next step of moving is carried out, the reagent needs to be put down again, and the measuring range needs to be adjusted by two hands again, which brings inconvenience to the work. For technicians with adjustable measuring range by one hand, tenosynovitis and other injuries are often caused by the rotation and matching of the thumb and the index finger which are aged for years.
The electric pipette in the existing market can be used for inputting the transfer amount by controlling a touch screen with a single hand, but is expensive, a common inspection mechanism is rarely configured, and the pipette with the manual range adjustment still occupies an absolute scale at present. In view of the above-mentioned problems of range adjustment, a new solution is urgently needed.
SUMMERY OF THE UTILITY MODEL
Current pipetting guns are all equipped with a pipetting gun rack. The existing pipette rack on the market has single function, is only used for hanging the pipette, realizes the functions of convenient taking and preventing reagent from flowing back to cause pollution. The utility model adds the range adjusting function to the liquid-transfering gun rack, and aiming at the technical problems, the following technical proposal is adopted: a liquid-transfering gun rack, including base and stores pylon, the said liquid-transfering gun rack also includes the range adjusting device; the range adjusting device comprises a knob clamping device and a power device; the knob clamping device comprises a clamping arm assembly and a sleeve, wherein sliding grooves are uniformly distributed in the top end of the sleeve along the circumferential direction, a first end part of each sliding groove extends into the sleeve, and a second end part of each sliding groove extends to a position which is a certain distance away from the outer circumferential surface of the sleeve; clamping arm assemblies capable of moving along the radial direction of the peripheral surface are uniformly distributed in the sliding grooves; the power device comprises a motor, and an output shaft of the motor is in transmission connection with a rotating shaft fixedly connected with the bottom end of the sleeve.
The clamping arm assembly comprises a clamping arm shell, a limiting rod fixedly connected to the second end of the sliding groove and a return spring sleeved on the periphery of the limiting rod; the liquid transfer gun rack also comprises a single chip microcomputer which is connected with the motor through a driving module; the top end face of the sleeve is oppositely provided with a pair of infrared signal transmitters and infrared signal receivers along the radial direction, and the signal output end of each infrared signal receiver is connected with the input end of the single chip microcomputer.
Furthermore, a penetrating internal thread hole is formed in the second end of the sliding chute along the radial direction of the sleeve, a hexagonal bolt matched with the internal thread hole is selected as the limiting rod, and the hexagonal head faces outwards; the sleeve also comprises a nested end cover matched with the top end of the sleeve, and guide ridges are uniformly distributed on the inner surface of the end cover along the radial direction; the surface of the clamping arm shell is provided with a guide groove matched with the end cover guide ridge; the clamping end of the clamping arm shell is uniformly distributed with convex guide slopes.
And the power supply connector is electrically connected with the infrared signal transmitter, the infrared signal receiver, the singlechip, the driving module, the rechargeable battery, the power switch and the motor.
Further, the rotary knob clamping device comprises a first rotary knob clamping device rotating along a clockwise direction and a second rotary knob clamping device rotating along a counterclockwise direction; and a gear or a belt pulley on an output shaft of the motor is in transmission connection with a gear or a belt pulley on a rotating shaft of the first knob clamping device, and the gear or the belt pulley on the rotating shaft of the first knob clamping device is in transmission connection with a gear or a belt pulley on a rotating shaft of the second knob clamping device.
Furthermore, the rotating shaft of the knob clamping device is fixed in the base of the liquid-transferring gun through a bearing seat.
The utility model has the following beneficial effects:
(1) the liquid transfer gun rack comprises the hanging rack and the range adjusting device, so that the taking and the taking are convenient, and the single-hand operation of range adjustment can be realized;
(2) the range adjusting device comprises a knob clamping device, a power device, an infrared signal emitter and an infrared signal receiver, wherein when a range adjusting knob of the pipette gun extends into a sleeve of the knob clamping device, the range adjusting knob is monitored by an infrared signal, and the power device is started immediately to perform range adjusting work, so that the function of adjusting the range of the pipette gun by one hand is realized;
(3) the clamping arm assembly comprises a clamping arm shell, a limiting rod fixedly connected to the second end of the sliding groove and a return spring sleeved on the periphery of the limiting rod, the clamping end of the clamping arm shell is a guide slope with uniformly distributed bulges, the clamping arm assembly is simple in structure, can be self-adaptive to range adjusting knobs with different outer diameters and clamps, and can realize a range adjusting function for liquid-transfering guns of different brands and specifications on the market;
(4) according to the liquid-transferring gun, the second end part of the sliding chute is provided with a through inner threaded hole along the radial direction of the sleeve, the limiting rod is a hexagon bolt matched with the inner threaded hole, the hexagon head faces outwards, the moving distance of the clamping arm assembly in the sliding chute can be limited by adjusting the hexagon bolt, and the liquid-transferring gun can be individually adjusted to be matched with a common liquid-transferring gun;
(5) the utility model can be simultaneously provided with the first knob clamping device rotating along the clockwise direction and the second knob clamping device rotating along the anticlockwise direction, and can also realize the forward and reverse adjustment functions of a single knob clamping device.
Drawings
The utility model is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic view of the construction of a pipette rack of the present invention;
FIG. 2 is a top view of the knob clamp of the present invention (without the end cap);
FIG. 3 is a cross-sectional view of a front view of the knob holder assembly (including the end cap) of the present invention;
FIG. 4 is a top view of the knob clamp assembly (including the end cap) of the present invention;
FIG. 5 is a schematic structural view of the end cap of the present invention;
FIG. 6 is a schematic view of the drive structure of the motor and knob clamping device of the present invention;
FIGS. 7 and 8 are schematic views showing the positions of an infrared signal transmitter and an infrared signal receiver according to the present invention;
FIG. 9 is a schematic diagram of a signal transmission process according to the present invention;
101-a base; 102-a pylon; 103-a first knob holding means; 104-a second knob holding device; 105-power connection; 106-power switch; 201-a gripper arm assembly; 202-a sleeve; 203-a chute; 204-a chute first end; 205-a chute second end; 206-gripper arm housing; 207-hex bolts; 208-a hexagonal head; 209-end cap; 210-a guide ridge; 211-a guide slot; 212-a bump; 213-guiding slope; 214-an infrared signal emitter; 215-infrared signal receiver; 216-a return spring; 301-an electric motor; 302-an output shaft; 303-a rotating shaft; 304 a-gear; 304 b-gear; 304 c-gear; 305-a bearing seat; 401-single chip microcomputer.
Detailed Description
The utility model is further illustrated by the following figures and examples:
the pipette gun rack shown in fig. 1 comprises a base 101 and a hanging rack 102, wherein the base 101 further comprises a first knob clamping device 103 rotating along a clockwise direction, a second knob clamping device 104 rotating along a counterclockwise direction and a power device.
As shown in fig. 2 and 3, the knob clamping device includes a clamping arm assembly 201 and a sleeve 202, the top end of the sleeve 202 is provided with evenly distributed sliding grooves 203 along the circumferential direction, a first end part 204 of the sliding groove extends into the sleeve 202, and a second end part 205 of the sliding groove extends to a position with a certain distance from the outer circumferential surface of the sleeve 202; the sliding groove 203 is uniformly provided with clamping arm assemblies 201 capable of moving along the radial direction of the circumferential surface, and each clamping arm assembly 201 comprises a clamping arm shell 206, a hexagon bolt 207 fixedly connected to the second end portion 205 of the sliding groove and a return spring 216 sleeved on the periphery of the hexagon bolt 207. The second end 205 of the sliding groove is provided with a through inner threaded hole along the radial direction of the sleeve 202, the limiting rod is a hexagon bolt 207 matched with the inner threaded hole, and the hexagon head 208 faces outwards.
As shown in fig. 4 and 5, the sleeve 202 further comprises a nested end cap 209 which is adapted to the top end of the sleeve 202, and guide ridges 210 are uniformly distributed on the inner surface of the end cap 209 along the radial direction; the surface of the clamping arm shell 206 is provided with a guide groove 211 matched with a guide ridge 210 of an end cover 209; the clamping end of the clamping arm housing 206 is a guide slope 213 with evenly distributed protrusions 212.
As shown in fig. 6, the power device includes an electric motor 301, and an output shaft 302 of the electric motor 301 is in transmission connection with a rotating shaft 303 fixed to the bottom end of the sleeve 202. The gear 304a on the output shaft 302 of the motor 301 is in driving connection with the gear 304b on the rotating shaft 303 of the first knob holder 103, and the gear 304b on the rotating shaft 303 of the first knob holder 103 is in driving connection with the gear 304c on the rotating shaft 303 of the second knob holder 104. The rotating shaft 303 of the knob clamping device is fixed in the base 101 of the pipette through a bearing seat 305.
As shown in fig. 7, 8 and 9, the pipetting gun rack further comprises a single chip microcomputer 401, and the single chip microcomputer 401 is connected with the motor 301 through a driving module. A pair of infrared signal transmitters 214 and infrared signal receivers 215 are oppositely arranged on the top end surface of the sleeve 202 along the radial direction, and the signal output end of the infrared signal receiver 215 is connected with the input end of the single chip microcomputer 401.
The embodiment also comprises a rechargeable battery (built-in) and a power connector 105, wherein the power connector 105 is electrically connected with the infrared signal transmitter 214, the infrared signal receiver 215, the single chip microcomputer 401, the driving module, the rechargeable battery (built-in), the power switch 106 and the motor 301.
The working process of the pipette rack is as follows:
the range adjustment end of the pipette is extended into the knob clamping device, specifically into the position of the range adjustment knob along the guide slope 213, and the clamping arm assembly 201 is adapted to the outer diameter of the knob and clamps the knob. When the range adjusting end extends into the motor, the infrared signal receiver 215 is blocked from receiving the infrared signal, the single chip microcomputer 401 immediately sends a command according to the interrupt signal, and the motor 301 is controlled to start through the driving module. The motor 301 is in transmission connection with the first knob clamping device 103 through the gear 304a to realize the range adjustment of the first knob clamping device 103 in the clockwise direction, and the first knob clamping device 103 is in transmission connection with the second knob clamping device 104 through the gear 304b to realize the range adjustment of the second knob clamping device 104 in the counterclockwise direction. The change of the measuring range of the pipette is observed at any moment, when the rough adjustment is carried out to the approximate target position, the pipette is drawn out, the infrared signal receiver 215 receives the infrared signal normally, the single chip microcomputer 401 immediately sends out a command, and the motor 301 is controlled to stop through the driving module. And then the target range is quickly adjusted by one hand. Through the process, the function of adjusting the range of the liquid-transfering gun by one hand is finally realized.
In specific implementation, the following improvements can be made according to the requirements:
(1) only one knob clamping device capable of adjusting the range in two directions is arranged on the pipetting gun rack base 101, the program of the single chip microcomputer 401 is set, when the infrared signal receiver 215 is blocked to receive the infrared signal, the single chip microcomputer 401 controls the motor 301 to rotate in the clockwise direction through the driving module, and after the infrared signal receiver is blocked again, the single chip microcomputer 401 rotates in the counterclockwise direction, and the steps are alternated so as to realize the adjustment of the range in two directions;
(2) in the embodiment, the knob clamping device and the pipette gun rack are integrated, so that the space utilization rate of a laboratory bench is increased, and the base and the knob clamping device can be independent and matched with the existing pipette gun rack and the existing pipette gun for storage;
(3) in the embodiment, the appearance of the pipette rack can be designed into various forms, and the position and the opening orientation of the knob clamping device can be adjusted according to needs, for example, the knob clamping device is arranged at the top of the pipette rack, the opening of the knob clamping device faces downwards, so that the measuring range of the pipette gun can be conveniently adjusted under the posture that the pipette head faces downwards, and unnecessary pollution caused by reagent flowing back into the pipette gun is prevented.
The above embodiments are not limited to the scope of the present invention, and all modifications or variations based on the basic idea of the present invention belong to the scope of the present invention.
Claims (6)
1. The utility model provides a liquid-transfering gun frame, includes base and stores pylon, its characterized in that: the pipette gun rack also comprises a range adjusting device; the range adjusting device comprises a knob clamping device and a power device; the knob clamping device comprises a clamping arm assembly and a sleeve, wherein sliding grooves are uniformly distributed in the top end of the sleeve along the circumferential direction, a first end part of each sliding groove extends into the sleeve, and a second end part of each sliding groove extends to a position which is a certain distance away from the outer circumferential surface of the sleeve; clamping arm assemblies capable of moving along the radial direction of the peripheral surface are uniformly distributed in the sliding grooves; the power device comprises a motor, and an output shaft of the motor is in transmission connection with a rotating shaft fixedly connected with the bottom end of the sleeve.
2. The pipette rack of claim 1, wherein: the clamping arm assembly comprises a clamping arm shell, a limiting rod fixedly connected to the second end of the sliding groove and a return spring sleeved on the periphery of the limiting rod; the liquid transfer gun rack also comprises a single chip microcomputer which is connected with the motor through a driving module; the top end face of the sleeve is oppositely provided with a pair of infrared signal transmitters and infrared signal receivers along the radial direction, and the signal output end of each infrared signal receiver is connected with the input end of the single chip microcomputer.
3. The pipette rack of claim 2, wherein: a second end part of the sliding chute is provided with a through inner threaded hole along the radial direction of the sleeve, the limiting rod is a hexagon bolt matched with the inner threaded hole, and the hexagon head faces outwards; the sleeve further comprises a nested end cover matched with the top end of the sleeve, guide ridges are uniformly distributed on the inner surface of the end cover along the radial direction, and guide grooves matched with the guide ridges of the end cover are formed in the surface of the clamping arm shell; the clamping end of the clamping arm shell is uniformly distributed with convex guide slopes.
4. A pipette rack as recited in claim 3, characterized in that: the infrared signal transmitter, the infrared signal receiver, the singlechip, the driving module, the rechargeable battery, the power switch and the motor are electrically connected.
5. The pipette rack of claim 4, wherein: the rotary knob clamping device comprises a first rotary knob clamping device rotating along a clockwise direction and a second rotary knob clamping device rotating along a counterclockwise direction; and a gear or a belt pulley on an output shaft of the motor is in transmission connection with a gear or a belt pulley on a rotating shaft of the first knob clamping device, and the gear or the belt pulley on the rotating shaft of the first knob clamping device is in transmission connection with a gear or a belt pulley on a rotating shaft of the second knob clamping device.
6. The pipette rack of claim 5, wherein: and a rotating shaft of the knob clamping device is fixed in a base of the liquid-transfering gun through a bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080831.2U CN215655248U (en) | 2021-08-31 | 2021-08-31 | Liquid transfer gun rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122080831.2U CN215655248U (en) | 2021-08-31 | 2021-08-31 | Liquid transfer gun rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215655248U true CN215655248U (en) | 2022-01-28 |
Family
ID=79957854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122080831.2U Withdrawn - After Issue CN215655248U (en) | 2021-08-31 | 2021-08-31 | Liquid transfer gun rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215655248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694984A (en) * | 2021-08-31 | 2021-11-26 | 李�远 | Liquid transfer gun rack |
-
2021
- 2021-08-31 CN CN202122080831.2U patent/CN215655248U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113694984A (en) * | 2021-08-31 | 2021-11-26 | 李�远 | Liquid transfer gun rack |
| CN113694984B (en) * | 2021-08-31 | 2024-08-13 | 李�远 | Pipetting gun rack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220128 Effective date of abandoning: 20240813 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220128 Effective date of abandoning: 20240813 |