CN213232263U - Microbial sampler - Google Patents
Microbial sampler Download PDFInfo
- Publication number
- CN213232263U CN213232263U CN202021392098.7U CN202021392098U CN213232263U CN 213232263 U CN213232263 U CN 213232263U CN 202021392098 U CN202021392098 U CN 202021392098U CN 213232263 U CN213232263 U CN 213232263U
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- China
- Prior art keywords
- piston rod
- negative pressure
- piston
- connecting pipe
- cylinder body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000000813 microbial effect Effects 0.000 title claims description 9
- 238000005070 sampling Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 244000005700 microbiome Species 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 210000003811 finger Anatomy 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000005224 forefinger Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model relates to the technical field of microorganism sampling equipment, in particular to a microorganism sampler, which comprises a sampling tube, a connecting tube, a sample storage container and a negative pressure mechanism, wherein the negative pressure mechanism comprises a bracket statically connected with the connecting tube, and the bracket is provided with a first negative pressure pump and a second negative pressure pump; the first negative pressure pump comprises a first cylinder body, a first piston and a first piston rod, and the first cylinder body is provided with a first air inlet communicated with the connecting pipe and a first air outlet communicated with the outside; the second negative pressure pump comprises a second cylinder body, a second piston and a second piston rod, and a second air inlet communicated with the connecting pipe and a second air outlet communicated with the outside are formed in the second cylinder body; the first air inlet, the first air outlet, the second air inlet and the second air outlet are connected with one-way valves, and a gear transmission mechanism is arranged between the first piston rod and the second piston rod. The problem of inconvenient control when the microorganism samples among the prior art has been solved to this scheme.
Description
Technical Field
The utility model relates to a microorganism sampling equipment technical field specifically is a microorganism sampler.
Background
When sampling microorganisms, a sampler is used for operation. Current sampler has included the sampling tube, and the one end of sampling tube is connected with the connecting pipe, and the intercommunication has storage appearance container and negative pressure mechanism respectively on the connecting pipe, and current negative pressure mechanism generally is electric vacuum pump, and the suction that such negative pressure mechanism produced is stronger, and the speed of absorbing is very fast moreover, conveniently realizes quick sample. However, sometimes, in the sampling process, the sampling environment is small and numerous and scattered, which requires frequent switching of the negative pressure mechanism during sampling, and the service life of the electric vacuum pump is severely reduced under frequent switching operation, thereby affecting the service life of the whole sampler and increasing the use cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a microorganism sampler to inconvenient problem of controlling when solving among the prior art microorganism sample.
In order to solve the above problem, the technical scheme of the utility model is that: a microorganism sampler comprises a sampling tube, a connecting tube, a sample storage container and a negative pressure mechanism, wherein the sampling tube is communicated with the connecting tube, the sample storage container is communicated with the connecting tube in a sealing way, the negative pressure mechanism comprises a bracket statically connected with the connecting tube, and a first negative pressure pump and a second negative pressure pump are arranged on the bracket; the first negative pressure pump comprises a first cylinder body fixedly connected with the support, a first cavity is arranged inside the first cylinder body, a first piston is connected in the first cavity in a sealing and sliding mode, a first piston rod is fixedly connected onto the first piston, and a first air inlet communicated with the connecting pipe and a first air outlet communicated with the outside are formed in the first cylinder body; the second negative pressure pump comprises a second cylinder body fixedly connected with the support, a second cavity is formed in the second cylinder body, a second piston is connected in the second cavity in a sealing and sliding mode, a second piston rod is fixedly connected to the second piston, and a second air inlet communicated with the connecting pipe and a second air outlet communicated with the outside are formed in the second cylinder body; the first air inlet, the first air outlet, the second air inlet and the second air outlet are connected with one-way valves, the first piston rod and the second piston rod are arranged in parallel, a gear rotatably connected with the support is arranged between the first piston rod and the second piston rod, a first rack meshed with the gear is fixedly connected to the first piston rod, and a second rack meshed with the gear is fixedly connected to the second piston rod.
Compared with the prior art, the scheme has the advantages that: through the first piston rod of alternate pressing and second piston rod, make first negative pressure pump and the alternate of second negative pressure pump bleed the connecting pipe to make the inside of connecting pipe form the negative pressure, thereby make also continuous absorption microorganism under the effect of negative pressure with the sampling tube of connecting pipe intercommunication, and make the microorganism of absorption enter into through the connecting pipe and store up in the appearance container, realize the sample operation to the microorganism.
In actual operation, two fingers are needed to press the first piston rod and the second piston rod respectively, and the first piston rod and the second piston rod are alternately pressed, so that the finger fatigue phenomenon caused by continuous pressing of one finger is avoided, and the operation burden is reduced.
When the first piston rod is pressed by one finger, the second piston rod is in a state of pushing the other finger to move under the action of the gear, so that the moving distance between the first piston rod and the second piston rod can be finely controlled by controlling the force applied by the two fingers, the operability of the sampling tube in the process of sucking microorganisms is improved, and the phenomenon that the sampling efficiency is influenced due to the fact that the concentration of the sucked microorganisms is smaller because a large amount of useless liquid is sucked by the sampling tube is avoided.
Further, the support is cuboid and is arranged in an L shape with the connecting pipe. Thus, the holder and the connection tube are integrally formed in a shape similar to a pistol, and the connection tube is supported by holding the holder, thereby facilitating the sampling operation.
Furthermore, one end of the first piston rod, which is far away from the first piston, and one end of the second piston rod, which is far away from the second piston, are both connected with an arc-shaped baffle. Due to the arrangement of the arc-shaped baffle, the pressure intensity between the fingers and the first piston rod and between the fingers and the second piston rod can be reduced, and the operation comfort level can be improved.
Furthermore, a rectangular lantern ring is connected to the support, and the lantern ring is sleeved on the first piston rod and the second piston rod in a sliding mode. Through the setting of the lantern ring, the first piston rod and the second piston rod can not be kept away from each other under the limiting action of the lantern ring, so that the stability of meshing between the first rack and the second rack and the gear is improved, and the reliability of transmission is further guaranteed.
Further, the first rack and the first piston rod are integrally formed. The mode of integrated molding is adopted, and the reliability of force transmission between the first rack and the first piston rod is improved.
Further, the second rack and the second piston rod are integrally formed.
Further, the sample storage container is in threaded sealing connection with the connecting pipe. And the sample storage container is connected and disassembled with the connecting pipe conveniently by adopting a threaded connection mode, so that the connection stability is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of the fitting state of the collar, the first piston rod and the second piston rod.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: sampling tube 1, sample storage container 2, connecting pipe 3, support 4, first pipe 5, first cylinder 6, first cavity 61, first piston 7, first piston rod 8, first rack 9, gear 10, second rack 11, second piston rod 12, lantern ring 13, second cylinder 14, second cavity 141, second piston 15.
The embodiment is basically as shown in the attached figures 1 and 2: a microorganism sampler comprises a sampling tube 1, wherein one end of the sampling tube 1 is in threaded sealing connection with a connecting tube 3, so that the sampling tube 1 is communicated with the inside of the connecting tube 3; the side of the connection tube 3 is screw-coupled with the sample storage container 2 so that the sample storage container 2 communicates with the inside of the connection tube 3. A negative pressure mechanism is arranged at one end of the connecting pipe 3, which is far away from the sampling pipe 1, the negative pressure mechanism comprises a bracket 4, the bracket 4 is cuboid, and the bracket 4 is fixedly connected with the connecting pipe 3 through a bolt, so that the bracket 4 and the connecting pipe 3 are arranged in an L shape; the support 4 is provided with a first negative pressure pump and a second negative pressure pump, the first negative pressure pump comprises a first cylinder body 6 fixedly embedded on the support 4, a first cavity 61 is arranged inside the first cylinder body 6, a first piston 7 is connected in the first cavity 61 in a sealing sliding manner, a first piston rod 8 is fixedly connected on the first piston 7, and an arc-shaped baffle is integrally formed at one end, far away from the first piston 7, of the first piston rod 8; the first cylinder 6 is provided with a first air inlet communicated with the connecting pipe 3, in this embodiment, a first conduit 5 is connected between the first air inlet and the connecting pipe 3, so that the connecting pipe 3 is communicated with the first cavity 61 through the first air inlet; a one-way valve is arranged at the first air inlet, so that the air flow at the first air inlet can only flow from the connecting pipe 3 to the first cavity 61; the first cylinder body 6 is further provided with a first air outlet communicated with the outside, and a one-way valve is also installed at the first air outlet, so that the air flow at the first air outlet can only flow from the first cavity 61 to the outside.
The second negative pressure pump comprises a second cylinder 14 fixedly embedded on the support 4, a second cavity 141 is arranged inside the second cylinder 14, a second piston 15 is connected in the second cavity 141 in a sealing and sliding manner, a second piston rod 12 is fixedly connected on the second piston 15, and an arc-shaped baffle is integrally formed at one end, far away from the second piston 15, of the second piston rod 12; the second cylinder 14 is provided with a second air inlet communicated with the connecting pipe 3, and a second conduit is connected between the second air inlet and the connecting pipe 3 in the embodiment, so that the connecting pipe 3 is communicated with the second cavity 141 through the second air inlet; a one-way valve is arranged at the second air inlet, so that the air flow at the second air inlet can only flow from the connecting pipe 3 to the second cavity 141; the second cylinder 14 is further provided with a second air outlet communicated with the outside, and a one-way valve is also installed at the second air outlet, so that the air flow at the second air outlet can only flow from the second cavity 141 to the outside.
The first piston rod 8 and the second piston rod 12 are arranged in parallel, a first rack 9 is integrally formed on one side, facing the second piston rod 12, of the side portion of the first piston rod 8, and a second rack 11 is integrally formed on one side, facing the first piston rod 8, of the side portion of the second piston rod 12. A gear 10 which is rotatably connected with the bracket 4 is arranged between the first piston rod 8 and the second piston rod 12, and the first rack 9 and the second rack 11 are respectively meshed with the gear 10. The bracket 4 is connected with a rectangular lantern ring 13 through a bolt, the lantern ring 13 is sleeved on the first piston rod 8 and the second piston rod 12 at the same time and is in sliding fit with the first piston rod 8 and the second piston rod 12, so that the first piston rod 8 and the second piston rod 12 cannot be far away from each other under the limiting action of the lantern ring 13, and the meshing stability between the first rack 9 and the second rack 11 and the gear 10 is ensured; the collar 13 is located outside the gear wheel 10 so as to ensure to the maximum the meshing action of the gear wheel 10 with the first rack 9 and the second rack 11, respectively.
The specific implementation process is as follows: the holder 4 is held by one hand, so that the connection tube 3 and the sampling tube 1 are supported by the holder 4, similarly to the operation of holding a pistol. When holding the bracket 4, the forefinger abuts against the baffle of the first piston rod 8, and the middle finger abuts against the baffle of the second piston rod 12. Through using forefinger and middle finger button to move first piston rod 8 and second piston rod 12 alternately, when forefinger promoted first piston rod 8, first piston rod 8 passed through first piston 7 with the air in first cavity 61 through first gas outlet discharge to the external world, simultaneously, first piston rod 8 drove gear 10 through first rack 9 and rotates, thereby make gear 10 drive second piston rod 12 through second rack 11 and move, make second piston rod 12 drive second piston 15 and move, second piston 15 makes the interior negative pressure that forms of second cavity 141 when moving, thereby make second cavity 141 through the second air inlet from the interior air-intake of connecting pipe 3, and then also make the interior negative pressure that also forms of connecting pipe 3, even the sampling tube 1 who communicates with connecting pipe 3 also forms the negative pressure and the microorganism is sucked. When the first piston 7 is pressed to the limit position, most of the air is discharged from the first cavity 61, and a large amount of air is sucked from the connecting pipe 3 in the second cavity 141, so that the second piston rod 12 is pressed by a middle finger in use, the second piston 15 extrudes the air in the second cavity 141 to discharge the air to the outside from the second air outlet, and meanwhile, the first piston rod 8 drives the first piston 7 to move under the action of the gear 10 and the first rack 9, so that negative pressure is formed in the first cavity 61, the air is sucked from the connecting pipe 3 through the first air inlet, and negative pressure is formed in the connecting pipe 3 and the sampling pipe 1 to suck microorganisms. The microorganism absorbed by the sampling tube 1 flows into the connecting tube 3 along the sampling tube 1, and finally flows into the sample storage container 2 communicated with the connecting tube 3.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The utility model provides a microbial sampler, includes sampling tube, connecting pipe, stores up appearance container and negative pressure mechanism, and sampling tube and connecting pipe intercommunication store up appearance container and the sealed intercommunication of connecting pipe, its characterized in that: the negative pressure mechanism comprises a bracket which is statically connected with the connecting pipe, and a first negative pressure pump and a second negative pressure pump are arranged on the bracket; the first negative pressure pump comprises a first cylinder body fixedly connected with the support, a first cavity is arranged inside the first cylinder body, a first piston is connected in the first cavity in a sealing and sliding mode, a first piston rod is fixedly connected onto the first piston, and a first air inlet communicated with the connecting pipe and a first air outlet communicated with the outside are formed in the first cylinder body; the second negative pressure pump comprises a second cylinder body fixedly connected with the support, a second cavity is formed in the second cylinder body, a second piston is connected in the second cavity in a sealing and sliding mode, a second piston rod is fixedly connected to the second piston, and a second air inlet communicated with the connecting pipe and a second air outlet communicated with the outside are formed in the second cylinder body; the first air inlet, the first air outlet, the second air inlet and the second air outlet are connected with one-way valves, the first piston rod and the second piston rod are arranged in parallel, a gear rotatably connected with the support is arranged between the first piston rod and the second piston rod, a first rack meshed with the gear is fixedly connected to the first piston rod, and a second rack meshed with the gear is fixedly connected to the second piston rod.
2. A microbial sampler according to claim 1, wherein: the bracket is cuboid and is arranged in an L shape with the connecting pipe.
3. A microbial sampler according to claim 2, wherein: and one end of the first piston rod, which is far away from the first piston, and one end of the second piston rod, which is far away from the second piston, are both connected with an arc-shaped baffle.
4. A microbial sampler according to claim 3, wherein: the support is connected with a rectangular lantern ring, and the lantern ring is sleeved on the first piston rod and the second piston rod in a sliding mode.
5. A microbial sampler according to claim 4, wherein: the first rack and the first piston rod are integrally formed.
6. A microbial sampler according to claim 5, wherein: the second rack and the second piston rod are integrally formed.
7. A microbial sampler according to claim 6, wherein: the sample storage container is in threaded sealing connection with the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392098.7U CN213232263U (en) | 2020-07-15 | 2020-07-15 | Microbial sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392098.7U CN213232263U (en) | 2020-07-15 | 2020-07-15 | Microbial sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213232263U true CN213232263U (en) | 2021-05-18 |
Family
ID=75889119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021392098.7U Expired - Fee Related CN213232263U (en) | 2020-07-15 | 2020-07-15 | Microbial sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213232263U (en) |
-
2020
- 2020-07-15 CN CN202021392098.7U patent/CN213232263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |