Cap opening and closing mechanism for screw cap type sampling bottle

Abstract

The utility model provides a cap opening and closing mechanism for a cap screwing type sampling bottle. The cap opening and closing mechanism comprises a bracket body (3), a bottle cap sleeve device (1) and a bottle cap falling prevention assembly (2), a through hole (32) for a sampling bottle to pass through is formed in the bracket body; the bottle cap sleeve device (1) at least comprises a bottle cap sleeve (11); the bottle cap sleeve (11) is erected on the through hole (32) of the support body (3), and a clamping structure or a limiting structure matched with the outer surface of the bottle cap is formed on the inner wall of the bottle cap sleeve (11); the bottle cap falling prevention assembly (2) is installed on the lower surface of the support body (3) and is close to the through hole (32). According to the mechanism, the position of the sampling bottle can be accurately positioned, the bottle cap of the cap screwing type sampling bottle can be screwed and unscrewed in the whole process, and manual operation is not needed.

Description

Technical Field

[0001] This utility model relates to the technical field of air sampling experimental equipment, and in particular to a screw-cap sampling bottle opening and closing mechanism. Background Technology

[0002] As people place increasing importance on health and well-being, the demand for air sampling is also growing. For example, analyzing sampled air can help prevent and control infectious diseases and monitor the environment.

[0003] In existing technologies, air sampling devices use one air sampling bottle at a time. Each sampling requires manual operation, including unscrewing the bottle cap before sampling and tightening it after sampling, thus completing the assembly and removal of the sampling bottle. These processes are entirely manual, which is not only wasteful of manpower but also inefficient and cannot automate large-scale air sampling.

[0004] Researchers have found that the reason why current air sampling equipment can only use one air sampling bottle for a complete sampling process, which is highly dependent on manual labor and cannot automatically complete large-scale air sampling, is that the process of opening and tightening the bottle cap during sampling still needs to be done manually.

[0005] Therefore, it is necessary to design a device that can accurately match the cap of the air sampling bottle, accurately locate the position of the sampling bottle, and thus accurately operate the cap to complete the process of unscrewing and tightening the cap of the air sampling bottle. This provides a supporting device foundation for realizing multiple air sampling and replacing the sampling bottle without manual operation. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a screw-cap sampling bottle opening and closing mechanism to solve the problems in the prior art.

[0007] To achieve the above-mentioned and other related objectives, this utility model is implemented by including the following technical solutions.

[0008] This utility model provides a screw-on sampling bottle opening and closing mechanism, the mechanism including a support body, a bottle cap sleeve device and an anti-cap falling component; the support body has a through hole for the sampling bottle to pass through; the bottle cap sleeve device includes at least a bottle cap sleeve;

[0009] The bottle cap sleeve is mounted on the through hole of the bracket body, and the inner wall of the bottle cap sleeve has a snap-fit ​​structure or limiting structure that matches the outer surface of the bottle cap.

[0010] The anti-bottle cap falling component is installed on the lower surface of the bracket body and is located near the through hole.

[0011] In some embodiments, the bottle cap sleeve device further includes a rotary motor, and the outer wall of the bottle cap sleeve is provided with a rotary gear, which meshes with the gear of the rotary motor.

[0012] In some embodiments, the snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve is a raised rib that matches the groove on the surface of the bottle cap.

[0013] In some embodiments, the snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve is a groove that matches the raised ribs on the bottle cap surface.

[0014] In some embodiments, the bottle cap sleeve has a first chamber for accommodating the bottle cap of the sampling bottle, and the first chamber is arranged vertically and vertically corresponding to the through hole.

[0015] In some embodiments, the number of raised ribs or grooves is 2 to 8. For example, there can be 2, 3, 4, 5, 6, 7, or 8. More preferably, there are 3 to 4.

[0016] In some embodiments, the anti-cap-falling assembly includes two roller assemblies, which are arranged opposite each other near the edge of the through hole; any roller assembly includes a roller and an elastic roller shaft, the elastic roller shaft is mounted on the lower surface of the bracket body, and the roller is sleeved on and rotatably connected to the elastic roller shaft.

[0017] In some embodiments, the rollers in the roller assembly partially protrude and are exposed in the through hole when there is no radial outward thrust; when subjected to radial outward thrust, the rollers move radially outward relative to the through hole.

[0018] In some embodiments, the anti-cap-falling assembly further includes a position sensor for sensing the roller, the position sensor being disposed on the lower surface of the bracket body and disposed away from the through hole relative to the roller.

[0019] In some embodiments, the position sensor is a contact position sensor.

[0020] In some embodiments, the position sensor is electrically connected to the rotating motor.

[0021] In some embodiments, the lower surface of the support body is further provided with a plurality of vertically arranged positioning pins for positioning the sampling bottle.

[0022] In some embodiments, the number of positioning pins is at least three. For example, there can be 3, 4, 5, 6, 7, or 8 pins. More preferably, there are 3 to 5 pins.

[0023] As described above, the screw-cap sampling bottle opening and closing mechanism of this utility model can accurately position the sampling bottle and achieve the tightening and unscrewing of the bottle cap throughout the entire process without manual operation. This reduces labor costs, improves sampling efficiency, and provides a supporting device foundation for achieving multi-bottle air sampling and bottle replacement without manual operation. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the screw-cap sampling bottle opening and closing mechanism of this utility model.

[0025] Figure 2 The second schematic diagram shows the structure of the screw-on sampling bottle opening and closing mechanism of this utility model (the bottle cap has been screwed open).

[0026] Figure 3 The third schematic diagram shows the structure of the screw-cap sampling bottle opening and closing mechanism of this utility model (the bottle cap is not screwed on).

[0027] Figure 4 The diagram shown is a structural schematic of the bottle cap sleeve of this utility model.

[0028] Figure 5 This is one of the structural schematic diagrams of the anti-bottle cap falling component of this utility model.

[0029] Figure 6 The second schematic diagram shows the structure of the anti-bottle cap falling component of this utility model.

[0030] Figure 7 The diagram shows the structure of a sampling bottle used in conjunction with the screw-cap sampling bottle opening and closing mechanism of this utility model.

[0031] Figures 1 to 7 Explanation of the symbols in the attached icons

[0032] 1. Bottle cap sleeve device

[0033] 11 Bottle cap sleeve

[0034] 111 Rotating Gear

[0035] 112 ribs

[0036] 113 First Chamber

[0037] 12 Rotary Electric Machines

[0038] 2 Anti-cap-falling component

[0039] 21 Roller Assembly

[0040] 211 Roller

[0041] 212 Flexible roller shaft

[0042] 22 Position Sensors

[0043] 3. Support body

[0044] 31 positioning pins

[0045] 32 Through holes

[0046] 4 positioning holes

[0047] A Sampling bottle cap

[0048] B Sampling bottle body Detailed Implementation

[0049] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0050] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0051] like Figures 1-3 As shown, this embodiment provides a specific screw-cap sampling bottle opening and closing mechanism, the mechanism including a support body 3, a bottle cap sleeve device 1 and an anti-cap falling component 2; the support body 3 has a through hole 32 for the sampling bottle to pass through; the bottle cap sleeve device 1 includes at least a bottle cap sleeve 11;

[0052] The bottle cap sleeve 11 is mounted on the through hole 32 of the bracket body 3, and the inner wall of the bottle cap sleeve 11 has a snap-fit ​​structure or limiting structure that matches the outer surface of the bottle cap.

[0053] The anti-bottle cap falling component 2 is installed on the lower surface of the bracket body 3 and is located near the through hole 32.

[0054] In one specific embodiment, the bottle cap sleeve device 1 further includes a rotary motor 12, and a rotary gear 111 is provided on the outer wall of the bottle cap sleeve 11, the rotary gear 111 being meshed with the rotary motor 12. In use, the rotary motor 12 controls the rotary gear 111, thereby driving the rotation of the bottle cap sleeve 11.

[0055] When actually unscrewing the bottle cap, the sampling bottle with the cap screwed on is brought close to the through hole 32 of the screw-on sampling bottle opening and closing mechanism. Under the action of upward force, the sampling bottle pushes open the anti-cap-falling component 2 and enters the through hole 32. When the bottle cap of the sampling bottle contacts the bottle cap sleeve 11, the bottle cap sleeve device 1 engages the bottle cap. At the same time, the rotary motor 12 controls the rotary gear 111, thereby driving the rotation of the bottle cap sleeve 11 until the bottle cap is unscrewed, the bottle body descends and leaves, and subsequent work, such as air sampling, can proceed. Individual bottle caps are intercepted by the anti-cap-falling component 2 and will not fall.

[0056] After sampling is completed, when tightening the bottle cap, the sample bottle without the cap gradually approaches the anti-cap-falling component 2. Under the action of upward force, the bottle body pushes open the anti-cap-falling component 2, enters the through hole 32, and contacts the cap sleeve device 1. At this time, the cap is placed on the bottle body, and the cap sleeve device 1 engages with the cap. The rotating gear 111 is controlled by the rotating motor 12, thereby driving the rotation of the cap sleeve 11 until the cap is tightened and the sample bottle descends and leaves.

[0057] This process can be repeated continuously, thus enabling the automatic and continuous opening and closing of multiple sampling bottles without the use of human labor, facilitating the completion of sampling work and achieving large-scale automatic air sampling.

[0058] As an example, in a... Figure 4 In the specific embodiment shown, the snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve is a raised rib 112 that matches the groove on the surface of the bottle cap; as another example, in another specific embodiment, the snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve is a groove that matches the raised rib on the surface of the bottle cap.

[0059] like Figures 1-4 As shown, in one specific embodiment, the bottle cap sleeve 11 forms a first chamber 113 for accommodating the bottle cap of the sampling bottle, and the first chamber 113 is vertically aligned with the through hole 32 to ensure accurate engagement of the bottle.

[0060] In actual use, when the sampling bottle enters the cap sleeve device 1 through the through hole 32, the protruding rib 112 inside the cap sleeve can match the groove on the surface of the cap, thereby fixing and limiting the cap so that it can only move in the vertical direction of the cap sleeve 11 and is locked in the horizontal direction. When the rotating gear 111 drives the cap sleeve 11 to rotate, it further drives the cap to rotate, ultimately realizing the opening and tightening of the cap.

[0061] In one specific embodiment, the number of raised ribs 112 is 2 to 8. Examples include 2, 3, 4, 5, 6, 7, and 8. More preferably, it is 3 to 4. Within this range, it ensures that the cap sleeve 11, while securing the cap and preventing it from rotating on its own, also minimizes the vertical friction of the cap, thus ensuring smoother operation. In one specific embodiment, the number of raised ribs 112 is 3.

[0062] like Figure 5 and 6 As shown, in a specific embodiment, the anti-cap-falling component 2 includes two roller assemblies 21, which are arranged opposite each other near the edge of the through hole 32; each roller assembly 21 includes a roller 211 and an elastic roller shaft 212, the elastic roller shaft 212 is mounted on the lower surface of the bracket body 3, and the roller 211 is sleeved on and rotatably connected to the elastic roller shaft 212.

[0063] like Figure 2 dashed box and Figure 6 As shown, in a specific embodiment, the roller 211 in the roller assembly 21 partially protrudes and is exposed in the through hole 32 when there is no radial outward thrust; when subjected to radial outward thrust, the roller 211 moves radially outward relative to the through hole 32.

[0064] In this application, radial direction refers to the periphery of the through hole 32.

[0065] like Figure 5 and Figure 6 As shown, in one specific embodiment, the anti-cap-falling assembly 2 further includes a position sensor 22 that senses the roller 211. The position sensor 22 is disposed on the lower surface of the bracket body 3 and is positioned away from the through hole 32 relative to the roller 211. More specifically, the position sensor 22 is a contact position sensor 22; the position sensor 22 is electrically connected to the rotary motor 12.

[0066] Specifically, in actual use, when the sample bottle with the tightened cap reaches the anti-cap-falling component 2, the sample bottle pushes open the two rollers 211 and passes through; at the same time, the pushed-open rollers 211 push backward to trigger the position sensor 22, indicating that the sample bottle has successfully passed through the roller assembly 21 and entered the cap sleeve 11. At this time, the rotary motor 12 receives a signal and drives the cap sleeve 11 to start rotating through the rotary gear 111, and the mechanism operates normally. When the cap is unscrewed by the cap sleeve device 1 and separates from the bottle body, the bottle body descends and leaves the anti-cap-falling component 2. The two rollers 211 lose radial outward thrust and are bounced back to their initial position by the elastic roller shaft 212 (partially protruding and exposed in the through hole 32). The cap cannot push open the rollers by its own weight, thus ensuring that the cap does not fall off; at the same time, when the rollers 211 are bounced back to their initial position, they leave the position sensor 22, indicating that the sample bottle has successfully left the roller assembly 21, and the mechanism operates normally.

[0067] When the bottle cap is tightened, the sampling bottle body rises to the anti-cap-falling component 2, pushing open the two rollers 211 to contact the cap sleeve 11. Simultaneously, the pushed-open rollers 211 push backward, triggering the position sensor 22 again to indicate that the bottle body has successfully passed the roller assembly 21 and entered the cap sleeve 11. At this point, the cap is fitted onto the bottle body, and the rotary motor 12 receives a signal, driving the cap sleeve 11 to begin rotating in the opposite direction via the rotary gear 111 until the cap is tightened, and the sampling bottle leaves the anti-cap-falling component 2. When the rollers 211 are springed back to their initial position, they move away from the position sensor 22, and the mechanism operates normally.

[0068] like Figure 5 and 6 As shown, in a specific embodiment, the lower surface of the support body 3 is also provided with a plurality of vertically arranged positioning pins 31 for positioning the sampling bottle.

[0069] In one specific embodiment, the number of positioning pins 31 is at least three. For example, the number of positioning pins 31 may be 3, 4, 5, 6, 7, or 8. Figure 6 and 5 In the specific embodiment shown, there are three positioning pins 31. More specifically, the positioning pins 31 are located around the through hole 32 and are evenly distributed along the through hole 32.

[0070] like Figure 7As shown, in actual use, the sampling bottle is a sampling bottle with a positioning hole 4. The positioning hole 4 is set in a corresponding position and number with the positioning pin 31 so that the positioning pin 31 can pass through the positioning hole 4, thereby accurately positioning the sampling bottle and enabling the opening and tightening of the bottle cap after it is engaged. In this application, the positioning pin 31 and the positioning hole 4 are used to further determine the position of the sampling bottle and the screw-on sampling bottle opening and closing mechanism, so that the sampling bottle, the through hole 32 and the first chamber 113 are vertically aligned, ensuring that the bottle cap can accurately pass through the through hole 32 and enter the first chamber 113, achieving the matching of the groove and the rib on the bottle cap, and finally realizing the opening and tightening operation of the mechanism.

[0071] In summary, the screw-cap sampling bottle opening and closing mechanism of this utility model can realize the process of opening and tightening the bottle cap, thereby freeing up manpower and reducing the dependence on manual operation during the process. The mechanism provided by this utility model is conducive to realizing the automatic sampling operation of multiple sampling bottles in one sampling, and provides a supporting device foundation for realizing multiple air sampling and replacing sampling bottles without manual operation.

[0072] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A screw-cap sampling bottle opening and closing mechanism, characterized in that, The mechanism includes a support body (3), a bottle cap sleeve device (1), and a bottle cap drop prevention assembly (2); the support body (3) has a through hole (32) for the sampling bottle to pass through; the bottle cap sleeve device (1) includes at least a bottle cap sleeve (11). The bottle cap sleeve (11) is mounted on the through hole (32) of the bracket body (3), and the inner wall of the bottle cap sleeve (11) has a snap-fit ​​structure or limiting structure that matches the outer surface of the bottle cap. The anti-cap-falling component (2) is installed on the lower surface of the bracket body (3) and is located near the through hole (32).

2. The mechanism according to claim 1, characterized in that, The bottle cap sleeve device (1) also includes a rotary motor (12), and the outer wall of the bottle cap sleeve (11) is provided with a rotary gear (111), which meshes with the rotary motor (12).

3. The mechanism according to claim 1, characterized in that, The snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve (11) is a rib (112) that matches the groove on the surface of the bottle cap. And / or, the snap-fit ​​structure or limiting structure of the inner wall of the bottle cap sleeve (11) is a groove that matches the raised ribs on the bottle cap surface; And / or, the bottle cap sleeve (11) is formed with a first chamber (113) for accommodating the bottle cap of the sampling bottle, and the first chamber (113) is arranged vertically corresponding to the through hole (32).

4. The mechanism according to claim 3, characterized in that, The number of the ribs (112) or grooves is 2 to 8.

5. The mechanism according to claim 2, characterized in that, The anti-cap-falling component (2) includes two roller assemblies (21), which are arranged opposite each other near the edge of the through hole (32); each roller assembly (21) includes a roller (211) and an elastic roller shaft (212), the elastic roller shaft (212) is mounted on the lower surface of the bracket body (3), and the roller (211) is sleeved on and rotatably connected to the elastic roller shaft (212).

6. The mechanism according to claim 5, characterized in that, When there is no radial outward thrust, the roller (211) in the roller assembly (21) protrudes and is exposed in the through hole (32); when subjected to radial outward thrust, the roller (211) moves radially outward relative to the through hole (32).

7. The mechanism according to claim 5, characterized in that, The anti-cap-falling component (2) also includes a position sensor (22) that senses the roller (211). The position sensor (22) is located on the lower surface of the bracket body (3) and is positioned away from the through hole (32) relative to the roller (211).

8. The mechanism according to claim 7, characterized in that, The position sensor (22) is a contact position sensor; And / or, the position sensor (22) is electrically connected to the rotary motor (12).

9. The mechanism according to claim 1, characterized in that, The lower surface of the support body (3) is also provided with several vertically arranged positioning pins (31) for positioning the sampling bottle.

10. The mechanism according to claim 9, characterized in that, The number of positioning pins (31) is at least three.

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