CN215517427U

CN215517427U - Sampling device for air microorganism natural sedimentation method

Info

Publication number: CN215517427U
Application number: CN202120609721.8U
Authority: CN
Inventors: 石斌; 陈智
Original assignee: Wuhan Centers For Disease Prevention & Control
Current assignee: Wuhan Centers For Disease Prevention & Control
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2022-01-14
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses an air microorganism natural sedimentation sampling device which comprises a contraction type rod body, a support frame arranged at one end of the contraction type rod body, a plate bracket arranged at the other end of the contraction type rod body, a plate arranged on the plate bracket and a control switch assembly arranged on the contraction type rod body, wherein the plate bracket is arranged at the other end of the contraction type rod body; the retractable rod body comprises a first rod body, a second rod body and a third rod body which are sequentially connected in a telescopic manner, when the retractable rod body is stored, the third rod body is embedded in the second rod body, the second rod body is embedded in the first rod body, the support frame is embedded in the first rod body when the retractable rod body is stored, and the plate bracket is embedded in the third rod body; a dish cover bracket which can be folded and stored into the second rod body is arranged on the second rod body; a button for adjusting the sampling height of the sampling frame is arranged on the side surface of the third rod body; the portable sampling frame is light in weight, small in size, capable of saving sampling time and improving sampling efficiency, convenient to carry, capable of solving the problems that the existing sampling frame is heavy in weight, difficult to carry and hard to operate, and accuracy of sampling results is affected, and extremely high in practicability.

Description

Sampling device for air microorganism natural sedimentation method

Technical Field

The utility model belongs to the technical field of microorganism collection equipment, and particularly relates to a sampling device for air microorganism natural sedimentation.

Background

According to the current domestic sanitary standard requirements, the indoor air microorganism sampling mode in public places is divided into a natural sedimentation method and an impact type sampling method, and the natural sedimentation method sampling is the mainstream mode for monitoring air microorganism sampling by the basic health department due to the characteristics of simple operation, convenience and quickness. According to method for public health inspection section 3: according to the requirements of air microorganism GB/T18204.3-2013, a sampling support is required to be prepared during sampling by a natural sedimentation method, points are distributed according to indoor area (the number of the points is generally 3-5, the positions of the points are respectively provided with a central point, a diagonal point, a plum blossom point and the like, and each sampling point is required to be sampled simultaneously), and the sampling height is 1.2-1.5 m.

At present, there is a sampling frame designed for a natural sedimentation method on the market, a basic worker samples according to regulations or samples by using a storage rack, a camera rack and other sampler sampling frames, and the sampling frame has the characteristics of heavy weight, difficulty in carrying, poor operation and the like, and has a great deal of influence on the correctness of an experimental result.

Therefore, a novel sampling frame which is light in weight, small in size, convenient to carry, simple to operate and strong in pertinence is urgently needed to solve the problems that the existing sampling frame is heavy in weight, difficult to carry and laborious to operate, and the accuracy of a sampling result is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects or the improvement requirements of the prior art, the utility model provides an air microorganism natural sedimentation method sampling device, which is characterized in that a plurality of sections of telescopic rod bodies are sequentially connected, a telescopic outward-expanding support frame is arranged in a first rod body, a plate bracket which is telescopic in a third rod body is arranged on the third rod body, and a dish cover bracket which can be folded to the second rod body is arranged on a second rod body; the sampling frame is very convenient to use from the state that the supporting frame is pulled out to the state that the sampling frame is unfolded, and the operation is simple and easy to get to the hands by arranging the control switch for controlling the unfolding of the supporting frame, the built-in rod body, the plate bracket and the dish cover bracket on the retractable rod body; the operator can use the device only by simply learning; the sampling time of sampling personnel can be greatly saved, the sampling efficiency is improved, the method is economical and efficient, and has strong pertinence, practicability and operability; the sampling frame is compact and reasonable in structure, solves the problems that the existing sampling frame is heavy in weight, is difficult to carry and is hard to operate, and the accuracy of a sampling result is influenced, and has high practicability.

In order to achieve the purpose, the utility model provides an air microorganism natural sedimentation sampling device which comprises a contraction type rod body, a support frame arranged at one end of the contraction type rod body, a plate bracket arranged at the other end of the contraction type rod body, a plate arranged on the plate bracket and a control switch assembly arranged on the contraction type rod body, wherein the support frame is a hollow cylinder; wherein the content of the first and second substances,

the retractable rod body comprises a first rod body, a second rod body and a third rod body which are sequentially connected in a telescopic mode, when the retractable rod body is stored, the third rod body is embedded in the second rod body, and the second rod body is embedded in the first rod body;

the support frame comprises a plurality of support legs which are supported in different directions;

the supporting legs are embedded in the first rod body when being stored;

the plate carrier comprises a plurality of first support arms which are unfolded in different directions;

the first support arm is embedded into the rod body of the third rod body when being stored;

and a foldable dish cover bracket is arranged on the second rod body and used for placing a flat dish cover.

Further, the capsule bracket comprises at least two second supporting arms;

the second supporting arm is clamped in the second rod body when being accommodated.

Furthermore, the tail ends of the first supporting arm and the second supporting arm are provided with clamping protrusions protruding upwards and used for preventing the plate and the dish cover from falling off respectively.

Further, the plate bracket is arranged at the end part of the third rod body;

the side of the third rod body is provided with a pressable clamping button for adjusting the sampling height of the sampling frame.

Furthermore, the adjacent joints of the first rod body, the second rod body and the third rod body are fixed through the rotary clamping groove after the rod bodies are extended.

Furthermore, the control switch assembly comprises a first control switch arranged on the first rod body, a second control switch arranged on the second rod body and a third control switch arranged on the third rod body.

Furthermore, the first control switch is of a sliding type, and a control button for controlling the supporting leg to pop out of the first rod body is arranged on the first control switch.

And the first control switch is also provided with a control button for controlling the second rod body and the third rod body to pop out from the first rod body.

Furthermore, the second control switch is of a sliding type, and a control button for controlling the free end of the capsule bracket to be separated from the second rod body is arranged on the second control switch.

Furthermore, the third control switch is of a sliding type, and a control button for controlling the dish bracket to pop out of the third rod body is arranged on the third control switch.

Further, the material of the contraction type rod body and the plate is glass fiber reinforced plastic;

the support frame, the plate bracket and the dish cover bracket are all made of aluminum alloy.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

(1) according to the sampling device adopting the natural sedimentation method for the air microorganisms, a plurality of sections of telescopic rod bodies which are sequentially connected are arranged, a telescopic and expandable support frame is arranged in a first rod body, a plate bracket which is arranged in a third rod body in a telescopic manner is arranged on a third rod body, a dish cover bracket which can be folded onto the second rod body is arranged on a second rod body, the telescopic and embedded design enables the whole sampling frame to be light in weight and small in size, in addition, the telescopic rod bodies and the plates are made of glass fiber reinforced plastics, the support frame, the plate bracket and the dish cover bracket are made of aluminum alloy materials, the structure is light and handy, a large number of sampling personnel can conveniently carry the sampling frame, and the sampling frame has extremely high portability; the sampling frame is very convenient to use from pulling out the support frame to unfolding through arranging the control switch for controlling the unfolding of the support frame, the built-in rod body, the plate bracket and the dish cover bracket on the retractable rod body, the operation is simple and easy, and the simple operation can be completed by only one person in the process of storage; the sampling time of sampling personnel can be greatly saved, the sampling efficiency is improved, and the method is economical and efficient; in sampling, the pertinence is highlighted, the characteristic of rapid retraction and extension can be met, a necessary platform can be provided for plate arrangement, and the urgent requirements of field sampling work are met; the sampling frame is compact and reasonable in structure, solves the problems that the existing sampling frame is heavy in weight, is difficult to carry and is hard to operate, and the accuracy of a sampling result is influenced, and has high practicability.

(2) According to the sampling device adopting the natural sedimentation method for the air microorganisms, the clamping protrusions protruding upwards are arranged at the tail ends of the first supporting arm and the second supporting arm, so that a plate and a dish cover are prevented from falling off, and the sampling frame is safer to use; the clamping buttons at different height positions are arranged on the side surface of the third rod body, so that the sampling height of the sampling frame can be flexibly adjusted, and the sampling requirements of different heights can be met; the joint between the adjacent rod bodies is fixed through the built-in rotary clamping groove, the whole structure is simple, compact and reasonable, and the practicability is high.

Drawings

FIG. 1 is a schematic view showing a state of a sampling device according to the air microorganism natural sedimentation method after being placed on a plate;

FIG. 2 is a schematic structural diagram of a sampling frame of the sampling device of the air microorganism natural sedimentation method;

FIG. 3 is a top view of the air microorganism natural sedimentation sampling apparatus of the present invention after being placed on a plate;

FIG. 4 is a bottom view of the air microorganism natural sedimentation sampling apparatus of the present invention after being placed on a plate;

FIG. 5 is a schematic view of the storage state of a sampling device according to the air microorganism natural sedimentation method of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 1-contraction type rod body, 11-first rod body, 111-first control switch, 12-second rod body, 121-dish cover bracket, 122-second control switch, 13-third rod body, 131-clamping button, 132-third control switch, 2-support frame, 3-dish bracket and 4-dish.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-5, the present invention provides a sampling device for air microorganism natural sedimentation, which comprises a retractable rod 1, a support frame 2 disposed at the bottom of the retractable rod 1, a plate bracket 3 disposed at the top of the retractable rod 1, and a control switch assembly disposed on the retractable rod 1; during operation, a plate 4 is placed on the plate bracket 3; according to the utility model, by arranging a plurality of sections of sequentially connected telescopic rod bodies, the plate bracket 3 and the support frame 2 at the bottom are both embedded, and can be retracted into the rod storage groove of the rod body when being stored, and can be drawn out in an expanded manner and fixed in an expanded manner; compact structure is reasonable, light in weight, small, and convenience simple to use can save sampling personnel's sampling time, improves sampling efficiency, carries conveniently, can solve current sampling frame weight big, be difficult to carry, the problem that the operation is strenuous and influences the sampling result accuracy, has the practicality.

Further, as shown in fig. 1-3, the retractable rod 1 includes a first rod 11, a second rod 12 and a third rod 13 which are sequentially and telescopically connected; the lengths of the first rod body 11, the second rod body 12 and the third rod body 13 are sequentially shortened, and the connecting positions among the first rod body, the second rod body and the third rod body are fixed through a rotary clamping groove after being stretched; when accomodating, the third body of rod 13 inlays in the second body of rod 12, the second body of rod 12 is inlayed in the first body of rod 11, simple structure conveniently carries in a large number.

Further, as shown in fig. 2, the plate carrier 3 is provided at an end of the third rod 13, and the plate carrier 3 includes a first support arm, and preferably 3 support arms, extending in a plurality of different directions; when the device works, the first supporting arms are uniformly spread at intervals along three directions; the first support arm can be embedded into the rod body of the third rod body 13 when being stored, so that the design saves manufacturing materials and space, and is simple in structure and convenient to use; the tail end of the first supporting arm is provided with a clamping protrusion protruding upwards and used for clamping the edge of the plate to prevent the plate from falling off; in addition, the side of the third rod body 13 is provided with a pressable clamping button 131 for adjusting the sampling height of the sampling frame, so that the sampling requirements of different heights can be met.

Further, as shown in fig. 1 and 2, a capsule bracket 121 is arranged on the second rod body 12 and used for placing a flat capsule; the dish cover bracket 121 is designed to be embedded, is clamped in the second rod body 12 during storage, and is fixed through a fixing bolt during expansion; the capsule holder 121 comprises at least two second supporting arms; the included angle of the two adjacent second support arm bodies is preferably 60 degrees; when the support device works, the two second support arms are splayed; the tail end of the second supporting arm is provided with an upward convex clamping boss for clamping the edge of the dish cover to prevent the dish cover from falling off; the second support arm is simple in structure, convenient to store, greatly convenient for safe storage of the plate cover in the plate using process and high in practicability.

Further, as shown in fig. 2, the support frame 2 includes a plurality of support legs that are supported in different directions, preferably 3 support legs, and all the support legs are designed to be embedded, and a storage groove for accommodating the support legs is provided inside the first rod 11, so that the support frame 4 can be drawn out from the first rod 11 and unfolded in different directions when in use, and further supports the sampling frame for work; when in storage, all the supporting legs can be folded and pushed into the storage groove of the first rod body 11, and then the supporting frame 4 is stored; by the design, the storage time of workers can be saved, the working efficiency of the machine is improved, the manufacturing cost and the occupied space are saved, and the machine has high practicability.

Further, as shown in fig. 1 to 5, the control switch assembly includes a first control switch 111 disposed on the first rod 11, a second control switch 122 disposed on the second rod 12, and a third control switch 132 disposed on the third rod 13; the first control switch 111 is of a sliding type, and a control button for controlling the supporting leg to pop out from the first rod body 11 is arranged on the first control switch; the first control switch 111 is further provided with a control button which can simultaneously eject the second rod 12 from the first rod 11 and eject the third rod 13 from the second rod 12. When the control switch is pushed out in one direction, the supporting legs of the supporting frame 4 can be popped out from the first rod body 11, and then the supporting legs are unfolded and fixed manually; when the control switch is pushed out in the opposite direction, the second rod body 12 can be simultaneously popped out of the first rod body 11 and the third rod body 13 can be simultaneously popped out of the second rod body 12, the second rod body is stretched to a working state through external force, and the connecting part of the adjacent rod bodies is rotationally fixed; when the foldable bicycle is stored, the rotation locking at the joint of the adjacent rod bodies is released, and the third rod body and the second rod body are respectively pushed into the first rod body towards the position of the first rod body; and retracting the supporting legs of the supporting frame 4 towards the central axis direction of the first rod body and pushing the supporting legs into the first rod body. The second control switch 122 is of a sliding type, a control button for controlling the free end of the capsule bracket 121 to be separated from the second rod body 12 is arranged on the second control switch, when the control button is pushed out in one direction, the free end of the supporting arm of the capsule bracket 121 is separated from the second rod body, and the second rod body is unfolded outwards through external force to be perpendicular to the second rod body; when the dish cover is stored, the dish cover bracket 121 is folded towards the rod body of the second rod body 12 and is pressed into the second rod body 12. The third control switch 132 is a sliding control switch, and a control button for controlling the plate holder 3 to pop out of the third rod 13 is disposed thereon, when the control button is pushed out in one direction, the first support arm of the plate holder 3 pops out, so that the plate holder can be pulled out of the third rod and unfolded for use; when the folding support arm is stored, the support arm is firstly folded and stored in the third rod body and is pushed towards the direction of the second rod body, and the control button is automatically reset at the moment.

According to the sampling device adopting the natural sedimentation method for the air microorganisms, a plurality of sections of telescopic rod bodies which are sequentially connected are arranged, a telescopic and outward-extending support frame is arranged in a first rod body, a plate bracket which is telescopic in a third rod body is arranged on the third rod body, and a dish cover bracket which can be folded to the second rod body is arranged on the second rod body, so that the device is compact and reasonable in design structure, and can greatly save consumables, reduce weight and volume due to telescopic and embedded design, is easy to operate, is convenient for a sampling person to carry in a large amount, and has extremely high portability; in addition, a control button and a rod body for controlling the supporting leg to pop out of the first rod body, a control button for controlling the second rod body and the third rod body to pop out of the first rod body, a control button for controlling the free end of the supporting arm of the dish cover bracket to be separated from the second rod body, and a control button for controlling the supporting arm of the dish cover bracket to pop out of the third rod body are arranged on the second rod body, so that the sampling frame can be used from pulling out the supporting frame to unfolding, and the sampling frame is very convenient and easy to operate and use; the operator can use the device only by simply learning; the sampling time of sampling personnel can be greatly saved, the sampling efficiency is improved, the method is economical and efficient, and has strong pertinence, practicability and operability; the problem of current sampling frame weight big, be difficult to carry, the operation is arduous and is influenced sampling result accuracy is solved.

The sampling device for the air microorganism natural sedimentation method has extremely strong portability; the body of rod material of this sampling frame is the glass steel design, and plate bracket and ware lid bracket are the aluminum alloy design, and the whole weight of the weight that alleviates that can be very big is controlled the total weight within 200g, can receive length control within 60cm through the design of the shrink of the multisection body of rod in addition, makes things convenient for a large amount of carrying of sampling personnel.

The sampling device adopting the air microorganism natural sedimentation method is extremely simple and easy to operate, and the sampling frame is used from the time of pulling out the supporting frame to the time of unfolding, and is simple and easy to operate; the operator can use the device only by simply learning; the sampling frame of the air microorganism natural sedimentation method has extremely strong pertinence; when the existing natural sedimentation method in public places is used for sampling, sampling personnel are difficult to control the position and the height of the plate according to standard requirements under the condition of no sampling frame, and in addition, because the distribution positions are widely distributed, the plate is frequently touched by surrounding personnel by mistake or lost; in contrast, when the existing sampling frame is used for sampling, sampling personnel at least need 3-4 persons to carry the sampling frame, the sampling time for completing sampling in one area is often more than 30 minutes, and the working efficiency is greatly influenced; after the sampling frame is put into use, the rationality, convenience and practicability of sampling by the air microorganism natural sedimentation method in sampling work are greatly improved, one sampling person can complete all sampling work within 8 minutes, the efficiency is improved by about 4 times compared with the prior sampling person, and the sampling frame has high practicability.

The sampling frame takes glass fiber reinforced plastic as a main body, and is lifted and lowered in a three-section rotation locking mode, so that the sampling height is controlled to be 1.2-1.5 m. In the design of the first rod body and the third rod body, the built-in triangular support frame is adopted, so that the space is saved to the maximum extent, in addition, the sampling frame is only 60cm long after being contracted (as shown in figure 5, the sampling frame is an overall structural schematic diagram after being stored), the weight is within 200g, and the carrying is more convenient. When in use, the triangular support frame is pulled out, unfolded outwards and the lock catch is screwed tightly, thus achieving the fixing effect. The simple dish cover bracket is arranged at the position of the second rod body, and through embedded design, the simple dish cover bracket is arranged in the rod wall of the second rod body during contraction and is unfolded during use for placing a flat dish cover. Because the total weight of the plate and the culture medium is +/-100 g, and the plate cover is +/-20 g, the main body structure made of the glass fiber reinforced plastic material, the supporting frame made of the aluminum alloy material and the tray frame are sufficient.

When sampling is carried out by a natural sedimentation method in a public place, a sampling person often needs to finish arranging a support and arranging a plate by one person, so the following characteristics need to be highlighted in the design of the sampling frame: 1. the portability is high; 2. the operation is simple; 3. the pertinence is strong. The length of the sampling frame is 60cm, the weight is 200g, and the sampling frame is convenient to carry. In the storage, simple operation can be completed by only one person. In sampling, the device has outstanding pertinence, can meet the characteristic of rapid retraction and release, can provide a necessary platform for plate arrangement, and meets the urgent requirements of field sampling work.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an air microorganism nature sedimentation method sampling device which characterized in that: the device comprises a retractable rod body (1), a support frame (2) arranged at one end of the retractable rod body (1), a plate bracket (3) arranged at the other end of the retractable rod body (1), a plate (4) arranged on the plate bracket (3) and a control switch assembly arranged on the retractable rod body (1); wherein the content of the first and second substances,

the retractable rod body (1) comprises a first rod body (11), a second rod body (12) and a third rod body (13) which are sequentially connected in a telescopic mode, when the retractable rod body is stored, the third rod body (13) is embedded in the second rod body (12), and the second rod body (12) is embedded in the first rod body (11);

the support frame (2) comprises a plurality of support legs which are supported in different directions;

the supporting legs are embedded in the first rod body (11) when being stored;

the plate carrier (3) comprises a plurality of first support arms which are spread out in different directions;

the first supporting arm is embedded into the rod body of the third rod body (13) when being stored;

and a foldable dish cover bracket (121) is arranged on the second rod body (12) and used for placing a flat dish cover.

2. The air microorganism natural sedimentation sampling device according to claim 1, wherein: the capsule bracket (121) comprises at least two second supporting arms;

the second support arm is embedded in the second rod body (12) when being stored.

3. The air microorganism natural sedimentation sampling device according to claim 2, wherein: the tail ends of the first supporting arm and the second supporting arm are provided with upward convex clamping portions which are used for preventing the plate and the dish cover from falling off respectively.

4. The air microorganism natural sedimentation sampling apparatus according to any one of claims 1 to 3, wherein: the plate bracket (3) is arranged at the end part of the third rod body (13);

the side of the third rod body (13) is provided with a pressable clamping button (131) for adjusting the sampling height of the sampling frame.

5. The air microorganism natural sedimentation sampling apparatus according to any one of claims 1 to 3, wherein: the connection position of the first rod body (11), the second rod body (12) and the third rod body (13) which are adjacent to each other is fixed through a built-in rotary clamping groove after the rod bodies are extended.

6. The air microorganism natural sedimentation sampling apparatus according to any one of claims 1 to 3, wherein: the control switch assembly comprises a first control switch (111) arranged on the first rod body (11), a second control switch (122) arranged on the second rod body (12) and a third control switch (132) arranged on the third rod body (13).

7. The air microorganism natural sedimentation sampling device according to claim 6, wherein: the first control switch (111) is of a sliding type, and a control button for controlling the supporting leg to pop out of the first rod body (11) is arranged on the first control switch;

the first control switch (111) is further provided with a control button which can enable the second rod body (12) to pop out of the first rod body (11) and the third rod body (13) to pop out of the second rod body (12) at the same time.

8. The air microorganism natural sedimentation sampling device according to claim 6, wherein: the second control switch (122) is of a sliding type, and a control button for controlling the free end of the capsule bracket (121) to be separated from the second rod body (12) is arranged on the second control switch.

9. The air microorganism natural sedimentation sampling device according to claim 6, wherein: the third control switch (132) is of a sliding type, and a control button for controlling the plate bracket (3) to pop out towards the outside of the third rod body (13) is arranged on the third control switch.

10. The air microorganism natural sedimentation sampling apparatus according to any one of claims 1 to 3, wherein: the retractable rod body (1) and the plate (4) are made of glass fiber reinforced plastics;

the support frame (2), the plate bracket (3) and the dish cover bracket (121) are all made of aluminum alloy.