Air sampling bottle assembly

Abstract

The utility model provides an air sampling bottle assembly. The air sampling bottle assembly comprises a sampling bottle (1) and a fixing cylinder (2) used for loading and limiting the sampling bottle (1), the outer wall of the sampling bottle (1) and the inner cylinder wall of the fixed cylinder (2) respectively form horizontal movable limiting structures which are matched with each other. Horizontal limiting is formed between the sampling bottle and the fixed cylinder, so that the sampling bottle is stably fixed in the fixed cylinder, and the sampling is prevented from being influenced by shaking during sampling.

Description

Technical Field

[0001] This utility model relates to the field of air sampling and detection technology, and in particular to an air sampling bottle assembly. Background Technology

[0002] Air sampling devices are used to collect samples of particulate matter, gases, microorganisms, or other pollutants in the air for subsequent analysis and measurement, obtaining basic data on gaseous pollution. They are widely used in environmental pollution monitoring, bioassays, and industrial hygiene, collecting and analyzing various chemical, physical, and biological factors in the air to protect human safety and health.

[0003] In the prior art, air sampling bottles are generally sampling cups that are connected to an air pump for sampling. The liquid in the sampling bottle is mixed with the liquid under the action of the air pump for sampling, and the sample in the sampling bottle is subsequently tested.

[0004] Chinese patent CN 218098508 discloses a sampling cup, comprising: a sampling cup body, a sampling cavity and a sampling port communicating with the sampling cavity, and a plurality of first anti-slip protrusions on the outer peripheral surface of the sampling cup body. This sampling cup can prevent it from falling during movement, thus avoiding damage. However, this sampling cup is prone to shaking during sampling, affecting the sampling process.

[0005] Chinese patent CN215328084U discloses an air microbial sampling bottle, comprising: a bottle body, a sampling tube, and a filter membrane. The bottle body is used to hold a sampling liquid, and the bottle body is provided with an air extraction port. The air outlet of the sampling tube extends into the bottle body. When gas is extracted from the bottle body through the air extraction port, outside air can enter the bottle body through the sampling tube. The air outlet of the sampling tube faces the surface of the sampling liquid. The filter membrane is fixedly installed at the air outlet of the sampling tube and is sealed to the air outlet. This sampling bottle is beneficial for the rapid detection of airborne microorganisms. However, the sampling bottle still has the problem that shaking during the sampling process can affect the sampling. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an air sampling bottle assembly to solve the problems in the prior art.

[0007] To achieve the above-mentioned and other related objectives, this utility model is obtained through the following technical solution.

[0008] This utility model provides an air sampling bottle assembly, including a sampling bottle and a fixing cylinder for loading and limiting the sampling bottle; the outer wall of the sampling bottle and the inner wall of the fixing cylinder are respectively formed with mutually matching horizontal movable limiting structures.

[0009] In some embodiments, a first protrusion is formed on the outer wall of the sampling bottle and protrudes radially outward; a first slot is formed on the inner wall of the fixing cylinder and matches the first protrusion; the first slot extends downward from the opening end of the fixing cylinder; and the first protrusion and the first slot match and slide to form a horizontal movable limiting structure.

[0010] In some embodiments, a second slot is formed on the outer wall of the sampling bottle; a second protrusion is formed on the inner wall of the fixing cylinder and protrudes radially inward, and the second protrusion and the second slot slide to form a horizontal movable limiting structure; and the second protrusion extends downward from the opening end of the fixing cylinder.

[0011] In some embodiments, the sampling bottle comprises a bottle cap and a bottle body which are detachably connected to each other.

[0012] In some embodiments, the fixing cylinder is formed with a cylinder cavity for accommodating the sampling bottle; and a limiting eave extending radially outward and a neck portion protruding axially from the limiting eave are formed in sequence in the direction close to the cylinder opening.

[0013] In some embodiments, in the assembled state, the sampling bottle is seated in the fixing cylinder, and the bottle cap protrudes as a whole and is exposed outside the cylinder opening of the fixing cylinder.

[0014] In some embodiments, the bottle body is formed in sequence in the direction away from the bottle opening with a bottle neck portion, a limiting transition portion and a converging portion for matching connection with the bottle cap; the outer wall of the limiting transition portion is formed with a horizontal limiting structure and / or a vertical limiting structure; and the converging portion is conical or frustoconical and its outline gradually converges in the direction away from the bottle opening.

[0015] In some embodiments, the sampling bottle comprises a trapping filter screen which is nested in the bottle opening of the bottle body.

[0016] In some embodiments, the bottle neck portion of the bottle body is formed with a notch for air inlet.

[0017] In some embodiments, a vertical movable limiting ring is further provided for sleeving the neck portion of the fixing cylinder; the vertical movable limiting ring is formed with a limiting pin protruding radially inward; the neck portion of the fixing cylinder is formed with a circumferential movable limiting hole for the limiting pin to penetrate, so that the limiting pin can abut against the upper end of the horizontal movable limiting structure of the fixing cylinder to form a vertical limiting structure.

[0018] In some embodiments, the vertical movable limiting ring is an elastic ring with a contraction tendency.

[0019] In some embodiments, the vertical movable limiting ring is an open ring structure and at least one end is fixed to the neck of the fixed cylinder.

[0020] In some embodiments, a rotating handle is connected to the vertical movable limiting ring.

[0021] In some embodiments, the circumferential movable limiting hole is formed with a first working position and a second working position of the limiting pin, when the limiting pin is in the first working position, the limiting pin is disengaged from the abutment of the horizontal movable limiting structure and vertical limiting, when the limiting pin is in the second working position, the limiting pin abuts the upper end face of the horizontal movable limiting pin to form vertical limiting.

[0022] In some embodiments, the horizontal limiting structure is at least two.

[0023] The utility model provides a kind of air sampling bottle assembly, with following beneficial effects:

[0024] (1) horizontal limiting is formed between sampling bottle and fixed cylinder, so that sampling bottle is stably fixed in fixed cylinder, prevent from appearing to shake and influence sampling when sampling;

[0025] (2) vertical limiting is formed between sampling bottle and fixed cylinder, so that sampling bottle is stably fixed in fixed cylinder, prevent from appearing to move up and down and influence sampling when sampling;

[0026] (3) before and after sampling, it is convenient to put or take sampling bottle from fixed cylinder, and fixed cylinder is automatically locked when putting in;

[0027] (4) simple structure, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is shown as the explosion diagram of the air sampling bottle assembly of the utility model.

[0029] Figure 2 It is shown as the front view of the sampling bottle of the utility model.

[0030] Figure 3 It is shown as the perspective view of the fixed cylinder of the utility model.

[0031] Figure 4 It is shown as the perspective view of the air sampling bottle assembly of the utility model.

[0032] Figure 5 It is shown as the cross-sectional view of the air sampling bottle assembly of the utility model.

[0033] REFERENCE SIGNS:

[0034] 1 sampling bottle;

[0035] 11 bottle cap;

[0036] 12 bottle body;

[0037] 121 first boss;

[0038] 122 clamping block;

[0039] 2 fixed cylinder;

[0040] 21 limiting eaves;

[0041] 22 first slot;

[0042] 23 circumferential movable limiting hole;

[0043] 24 neck;

[0044] 25 cylinder cavity;

[0045] 3 vertical movable limiting ring;

[0046] 31 limiting pin;

[0047] 32 spring;

[0048] 34 rotating handle. DETAILED DESCRIPTION

[0049] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0050] Please refer to Figures 1 to 5 . It should be understood that the structure, proportion, size, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantial change of technical content is also considered as the scope of the present application.

[0051] As Figures 1 to 3 shown, the present application provides an air sampling bottle assembly, which comprises a sampling bottle 1 and a fixed cylinder 2 for loading and limiting the sampling bottle 1; the outer wall of the sampling bottle 1 and the inner cylinder wall of the fixed cylinder 2 respectively form a matched horizontal movable limiting structure.

[0052] In the above embodiments, the horizontal movable limiting structure can prevent the sampling bottle 1 from rotating in the fixed cylinder 2 during sampling, affecting sampling. The horizontal movable limiting structure of the sampling bottle 1 and the fixed cylinder 2 includes the following implementation manners:

[0053] The first kind: as shown in the drawings, a first boss 121 is arranged on the outer wall of the sampling bottle 1 and protrudes radially outward; a first slot 22 is formed on the inner cylinder wall of the fixed cylinder 2 and matches the first boss 121; the first slot 22 extends downward from the opening end of the fixed cylinder 2, and the first boss 121 and the first slot 22 are matched and slidably connected to form a horizontal movable limiting structure. Figures 1 to 3

[0054] In this specific embodiment, the first boss 121 can be arranged close to or near the converging part, as shown by the position of the first boss 121 in the drawings. Figure 1 Figure 2 The first boss 121 can have a certain converging structure and form a gradually transitioned fillet, which facilitates the first boss 121 to guide the limiting pin 31 to gradually move radially outward (as shown in the drawings) and facilitates the first boss 121 to better slide downward into the first slot 22. Figure 3

[0055] The second kind: a second slot is arranged on the outer wall of the sampling bottle 1; a second boss protruding radially inward is formed on the inner cylinder wall of the fixed cylinder 2 and matches the second slot, the second boss and the second slot are slidably connected to form a horizontal movable limiting structure; and the second boss extends downward from the opening end of the fixed cylinder 2.

[0056] In a more specific embodiment of the horizontal movable limiting structure of the first kind, the first slot 22 can extend downward from the opening end of the fixed cylinder 2 to the bottom of the fixed cylinder 2, or extend downward to the bottom end of the sampling bottle 1 and abut against the bottom of the fixed cylinder 2, and at this time, the structure shown in the drawings is that the bottle cap 11 of the sampling bottle 1 is exposed as a whole from the fixed cylinder 2. Figure 4

[0057] In a more specific embodiment of the horizontal movable limiting structure of the second kind, the second boss can extend downward from the opening end of the fixed cylinder 2 to the bottom of the fixed cylinder 2, or extend downward to the bottom end of the sampling bottle 1 and abut against the bottom of the fixed cylinder 2, and at this time, the structure shown in the drawings is that the bottle cap 11 of the sampling bottle 1 is exposed as a whole from the fixed cylinder 2. In this implementation manner, the vertical extension length of the second slot can be set according to actual conditions. Figure 4 In a more specific embodiment of the horizontal movable limiting structure of the first kind, the first slot 22 can extend downward from the opening end of the fixed cylinder 2 to the bottom of the fixed cylinder 2, or extend downward to the bottom end of the sampling bottle 1 and abut against the bottom of the fixed cylinder 2, and at this time, the structure shown in the drawings is that the bottle cap 11 of the sampling bottle 1 is exposed as a whole from the fixed cylinder 2.

[0058] Figures 1 to 2 ​​​​​In the specific embodiment shown, the sampling bottle 1 includes a cap 11 and a bottle body 12 that are detachably connected to each other. Specifically, the detachable connection is a snap-fit ​​or threaded connection.

[0059] In a like Figure 1 , 3 In the specific embodiment shown, the fixed cylinder 2 is formed with a cavity 25 for carrying the sampling bottle 1, and adjacent radially outwardly extending limiting eaves 21 and axially protruding necks 24 are formed in sequence near the cylinder opening.

[0060] In a like Figure 4 In a more specific embodiment shown, in the assembled state, the sampling bottle 1 is seated within the fixing cylinder 2, and the bottle cap 11 protrudes entirely and is exposed at the opening of the fixing cylinder 2. Specifically, the maximum cross-sectional diameter of the bottle cap 11 of the sampling bottle 1 is larger than the diameter of the opening end of the fixing cylinder 2. This structural design facilitates the opening and closing of the sampling bottle 1 during subsequent sampling.

[0061] In a more specific embodiment, the bottle body 12 is sequentially formed with a bottleneck portion, a limiting transition portion, and a converging portion for matching and connecting with the bottle cap 11 along the direction away from the bottle mouth. The outer wall of the limiting transition portion is formed with a horizontal limiting structure and / or a vertical limiting structure. The converging portion is conical or frustum-shaped and its outline gradually converges along the direction away from the bottle mouth.

[0062] In a more specific embodiment, the sampling bottle 1 includes a trapping filter screen, which is nested within the bottle body 12 at the bottle opening, as described in invention patent CN 113604337 B. Figure 2 and 3 As shown, the specific structure of the filter screen is as follows: Figure 3 The structure corresponding to label 4 in the attached figure.

[0063] In a more specific embodiment, the bottleneck of the bottle body 12 has a notch for serving as an air inlet, the specific structure of which is shown in Chinese invention patent CN 113604337 B. Figure 3 The structure corresponding to reference numeral 105 in the attached figure.

[0064] In a like Figure 1 , 3 In a more specific embodiment shown in Figure 5, a vertically movable limiting ring 3 is further included for fitting onto the neck 24 of the fixed cylinder 2. The vertically movable limiting ring 3 has a limiting pin 31 that protrudes radially inward. The neck 24 of the fixed cylinder 2 has a circumferentially movable limiting hole 23 through which the limiting pin 31 passes, so that the limiting pin 31 can abut against the upper end of the horizontally movable limiting structure of the fixed cylinder 2 to form a vertical limiting structure.

[0065] In one specific embodiment, the vertical limiting structure is at least two. Such as two, three.

[0066] In one specific embodiment, the vertical limiting structure is at least two. Such as two, three. Figure 1 、 3 In a further specific embodiment as shown in FIG. 5, the circumferential movable limiting hole 23 is formed with a first working position and a second working position of the limiting pin 31. When the limiting pin 31 is in the first working position, the limiting pin 31 is disengaged from the abutment with the horizontal movable limiting structure and the vertical limiting. When the limiting pin 31 is in the second working position, the limiting pin 31 abuts the upper end face of the horizontal movable limiting structure to form the vertical limiting. Specifically, the second working position is a working position in which the circumferential movable limiting hole 23 abuts the upper end face of the horizontal movable limiting pin 121, as shown by the position of the limiting pin 31 (marked as 31) in FIG. 5, at which time the sampling bottle 1 is locked in the fixed cylinder 2 by vertical limiting and horizontal limiting; the circumferential movable limiting hole 23 is in the first working position except for the second working position, and when the vertical movable limiting ring 3 is rotated to move the limiting pin 31 to the first working position to disengage the vertical limiting, the sampling bottle 1 can be taken out of or put into the fixed cylinder 2, at which time the vertical movable limiting ring 3 can be in a stretched or compressed state. Figure 3 Figure 3 The position of the limiting pin 31 (marked as 31) in FIG. 5, at which time the sampling bottle 1 is locked in the fixed cylinder 2 by vertical limiting and horizontal limiting; the circumferential movable limiting hole 23 is in the first working position except for the second working position, and when the vertical movable limiting ring 3 is rotated to move the limiting pin 31 to the first working position to disengage the vertical limiting, the sampling bottle 1 can be taken out of or put into the fixed cylinder 2, at which time the vertical movable limiting ring 3 can be in a stretched or compressed state.

[0067] In some embodiments as shown in FIG. 6, the vertical limiting structure in the present application includes the limiting pin 31 of the vertical movable limiting ring 3 and the horizontal limiting structure and / or vertical limiting structure provided on the outer wall of the limiting transition part of the sampling bottle 1 matched therewith. In a more specific embodiment, as shown in FIG. 7, the limiting transition part of the sampling bottle 1 is provided with a first boss 121, and the limiting pin 31 abuts the end face of the first boss 121. This specific embodiment is actually a vertical limiting structure formed by matching the horizontal limiting structure member on the sampling bottle 1 with the limiting pin 31. In the above-mentioned embodiments, the vertical limiting structure enables the sampling bottle 1 to be more stably fixed in the fixed cylinder 2, preventing the sampling bottle 1 from moving up and down in the fixed cylinder 2 to affect sampling. Figure 5 Figure 5 The vertical limiting structure has various forms, and any structure capable of achieving vertical limiting shall fall within the protection scope of the present application. In a more specific embodiment as shown in FIG. 8, the outer wall of the limiting transition part of the sampling bottle 1 is further formed with a radially outwardly protruding clamping block 122, and the clamping block 122 is formed above the horizontal movable limiting pin 121, and a groove capable of accommodating and matching the limiting pin 31 is formed between the horizontal movable limiting pin 121 and the clamping block 122, thereby forming a more stable limiting structure, which also functions as horizontal limiting.

[0068] The vertical limiting structure has various forms, and any structure capable of achieving vertical limiting shall fall within the protection scope of the present application. In a more specific embodiment as shown in FIG. 8, the outer wall of the limiting transition part of the sampling bottle 1 is further formed with a radially outwardly protruding clamping block 122, and the clamping block 122 is formed above the horizontal movable limiting pin 121, and a groove capable of accommodating and matching the limiting pin 31 is formed between the horizontal movable limiting pin 121 and the clamping block 122, thereby forming a more stable limiting structure, which also functions as horizontal limiting. Figure 2 The vertical limiting structure has various forms, and any structure capable of achieving vertical limiting shall fall within the protection scope of the present application. In a more specific embodiment as shown in FIG. 8, the outer wall of the limiting transition part of the sampling bottle 1 is further formed with a radially outwardly protruding clamping block 122, and the clamping block 122 is formed above the horizontal movable limiting pin 121, and a groove capable of accommodating and matching the limiting pin 31 is formed between the horizontal movable limiting pin 121 and the clamping block 122, thereby forming a more stable limiting structure, which also functions as horizontal limiting.​​

[0069] In a further specific embodiment as shown in Figure 1 , 3 The vertical movable limiting ring 3 is an elastic ring with a shrink tendency. The vertical movable limiting ring 3 can be an open ring or a closed ring. The vertical movable limiting ring 3 can be a limiting ring with spring 32 or a ring spring as shown in Figure 1 , 3 The spring 32 can be a tension spring or a natural spring.

[0070] As the sampling bottle 1 moves downward into the fixed cylinder 2, the first boss 121 guides the limiting pin 31 to gradually move radially outward (as shown in Figure 3 When the sampling bottle 1 moves to the vicinity of the predetermined position, the limiting pin 31 gradually moves radially inward to abut against the end face of the first boss 121, forming vertical and horizontal limiting, and automatically locking the sampling bottle 1 in the fixed cylinder 2.

[0071] In some further specific embodiments as shown in Figure 1 and Figure 3 The vertical movable limiting ring 3 is an open ring structure and contains a spring 32, and at least one end of the vertical movable limiting ring 3 is fixed to the neck 24 of the fixed cylinder 2. For example, one end is provided with a fixed pin, and the neck 24 is formed with a fixed hole, and the fixed pin is placed in the fixed hole for fixation. Those skilled in the art can understand that it can be fixed at one end, or fixed at both ends, or fixed at one place in a closed ring. At the same time, the fixed way is not limited to the specific form of the combination of the fixed pin and the fixed hole described above in the present application.

[0072] For the open ring structure, those skilled in the art can understand that the open degree (the proportion of the gap to the whole ring) is less than 50%, such as 45%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, 5%, 2%, etc.

[0073] In a further specific embodiment as shown in Figure 1 , 3 A rotating handle 34 is connected to the vertical movable limiting ring 3 to facilitate the rotation of the vertical movable limiting ring 3.

[0074] In a specific embodiment, the horizontal limiting structure is at least two. For example, it can be two or three, as shown in Figure 3 The horizontal limiting structure is two.

[0075] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. An air sampling bottle assembly, comprising: The sampling bottle (1) and the fixing cylinder (2) for loading and limiting the sampling bottle (1); the outer wall of the sampling bottle (1) and the inner cylinder wall of the fixing cylinder (2) are respectively provided with mutually matched horizontal movable limiting structures; The outer wall of the sampling bottle (1) is provided with a first boss (121) protruding radially outward; the inner cylinder wall of the fixing cylinder (2) is formed with a first slot (22) matched with the first boss (121); the first slot (22) extends downward from the opening end of the fixing cylinder (2), and the first boss (121) and the first slot (22) are matched and slidably connected to form a horizontal movable limiting structure; And / or, the outer wall of the sampling bottle (1) is provided with a second slot; the inner cylinder wall of the fixing cylinder (2) is formed with a second boss protruding radially inward matched with the second slot, and the second boss and the second slot are slidably matched to form a horizontal movable limiting structure; the second boss extends downward from the opening end of the fixing cylinder (2).

2. The air sampling bottle assembly of claim 1, wherein, The sampling bottle (1) comprises a bottle cap (11) and a bottle body (12) which are detachably connected to each other.

3. The air sampling bottle assembly of claim 1, wherein, The fixing cylinder (2) is formed with a cylinder cavity (25) for carrying the sampling bottle (1), and the fixing cylinder (2) is sequentially formed with an adjacent radially outward extending limiting eave (21) and a neck portion (24) axially protruding from the limiting eave (21) along the direction close to the cylinder port.

4. The sampling bottle assembly of claim 2, wherein, In the assembled state, the sampling bottle (1) is seated in the fixing cylinder (2), and the bottle cap (11) as a whole protrudes and is exposed to the cylinder port of the fixing cylinder (2); And / or, the bottle body (12) is sequentially formed with a bottle neck portion, a limiting transition portion and a converging portion for matched connection with the bottle cap (11) along the direction away from the bottle port, the outer wall of the limiting transition portion is formed with horizontal limiting structure and / or vertical limiting structure, and the converging portion is conical or circular truncated cone-shaped and the outline gradually converges along the direction away from the bottle port; And / or, the sampling bottle (1) comprises a trapping filter screen which is nested at the bottle port of the bottle body (12) to form in the bottle body (12); And / or, the bottle neck portion of the bottle body (12) is formed with a notch for air inlet.

5. The air sampling bottle assembly of claim 3, wherein, It also comprises a vertical movable limiting ring (3) for sleeving on the neck portion (24) of the fixing cylinder (2), the vertical movable limiting ring (3) is formed with a limiting pin (31) protruding radially inward; the neck portion (24) of the fixing cylinder (2) is formed with a circumferential movable limiting hole (23) for the limiting pin (31) to penetrate, so that the limiting pin (31) can abut against the upper end of the horizontal movable limiting structure of the fixing cylinder (2) to form a vertical limiting structure.

6. The air sampling bottle assembly of claim 5, wherein, The vertical movable limiting ring (3) is a spring ring with contraction tendency.

7. The air sampling bottle assembly of claim 5, wherein, The vertical movable limiting ring (3) is an open ring structure and at least one end is fixed to the neck portion (24) of the fixing cylinder (2); and / or, the vertical movable limiting ring (3) is connected with a rotating handle (34).

8. The air sampling bottle assembly of claim 5, wherein, The circumferential movable limiting hole (23) is formed with a first working position and a second working position of the limiting pin (31), when in the first working position, the limiting pin (31) is disengaged from the abutment with the horizontal movable limiting structure and vertical limiting, when in the second working position, the limiting pin (31) abuts the upper end face of the horizontal movable limiting structure to form vertical limiting.

9. The air sampling bottle assembly of claim 8, wherein, The horizontal movable limiting structure is at least two.

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