Microbial contamination detection sampler for cosmetics

By using a pressure plate and a return spring to the design of the sealing assembly in the sampling device for cosmetic testing, the problem of gear transmission occupying space and inconvenient maintenance is solved, the effect of rapid sample extraction is achieved, and the firmness and sealing of the device are improved through the design of the protective component.

CN222774337UActive Publication Date: 2025-04-18SHANGHAI FENGCUI BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421143710.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-04-18
Estimated Expiration
2034-05-24

AI Technical Summary

Technical Problem

The existing sampling devices for cosmetic testing take up a large amount of internal space due to gear transmission, and are not convenient for disassembly and repair. The protective sleeve and the engagement mechanism are poorly firm, which is easy to loosen and fall off, resulting in liquid leakage at the sampling head.

Method used

A cosmetic microbial contamination detection sampler is designed, using a pressure plate and a return spring to cooperate with the sealing assembly, and quickly extract the sample through a negative pressure state. The structure is simple and does not occupy the internal space. It is easy to disassemble and repair the sealing assembly by loosening the screws and disassemblying the stop disc. The protective assembly is engaging with the draw tube by vertical pulling and rotating to ensure firmness and sealing.

Benefits of technology

It realizes rapid extraction of cosmetic samples, compact structure, does not occupy internal space, is easy to disassemble and repair, and has good rigidity and sealing properties of the protective components, avoiding liquid leakage from the sampling head.

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Abstract

The utility model relates to the technical field of cosmetic detection, and discloses a cosmetic microbial contamination detection sampler which comprises a sampling tube, the bottom of the sampling tube is slidably connected with a protection assembly through a limiting plate, the top end of the limiting plate is provided with a supporting spring, and the bottom end of the sampling tube is connected with the protection assembly in a clamped mode through a suction tube. A supporting table is fixedly arranged at the top end of the sampling pipe, finger supports are fixedly arranged on the two sides of the supporting table, a blocking disc is installed in the supporting table through a screw, the blocking disc is slidably connected with a pressing rod, and the surface of the pressing rod is sleeved with a reset spring; the cosmetic sample extraction device has the advantages that gas in the sampling tube can be exhausted by pressing the sealing assembly through the pressing plate, the pressing plate is matched with the baffle disc to compress the reset spring, the reset spring can drive the sealing assembly to reset through the pressing plate by loosening the pressing plate, a cosmetic sample can be rapidly extracted, the structure is simple, and the internal space of the sampling tube is not occupied.
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Description

Technical Field

[0001] The utility model relates to the technical field of cosmetics detection, in particular to a cosmetics microbial contamination detection sampler. Background Art

[0002] Cosmetics refer to chemical industrial products or fine chemical products that are spread on any part of the human body surface, such as skin, hair, nails, lips and teeth, by smearing, spraying or other similar methods, for the purpose of cleaning, maintenance, beautification, modification and change of appearance, or correction of human odor and maintenance of good condition. Cosmetics contaminated by microorganisms may cause changes in color, shape, odor, etc., and deterioration in quality. Contamination by pathogenic bacteria can cause damage to human health. For example, contamination by purulent bacteria can cause skin and eye infections. Microbial contamination testing is often required during production.

[0003] Its application number is "CN202122696367.X". The "sampling device for cosmetic detection" disclosed in it "comprises a detection tube body and a sampling head, the sampling head is installed on the lower side of the detection tube body, and the bottom of the detection tube body is in contact with a rubber stopper; it also includes: a first rack fixed to the right side of the outer wall of the movable rod, the first rack is connected to the gear, and the front and rear sides of the gear are arranged inside the detection tube body through an axle rod, the right side of the gear is connected to the second rack, the second rack is fixed to the left side of the movable block, the right end of the movable block passes through the surface of the detection tube body, and a sliding rod is fixed to the right side of the movable block, the sliding rod and the slide groove are connected to each other, and the slide groove is opened on the right side of the detection tube body". In the utility model, the sampling device for cosmetic detection is provided with a gear and a movable block. When sampling the cosmetic solution, one finger of the user is stuck in the finger ring, and the movable block drives the movable rod to move upward through the gear to extract the sample, so that the operator can operate it with one hand, which is convenient to use, and it can be better controlled by rotating the gear.

[0004] However, the above method still has the following defects: one-handed operation can be achieved through the transmission of the first rack, the gear and the second rack, and the sample can be extracted, but the gear makes the first rack and the second rack move unidirectionally with respect to each other. Since the first rack and the second rack are both located in the detection tube, in order to ensure the stroke of the first rack and the second rack, it is necessary to increase the installation space, which occupies more internal space of the detection tube and is not convenient for disassembly and maintenance. The sampling head can be protected by a protective cover, but the protective cover is engaged with the locking mechanism, and the firmness is poor. It is easy to loosen and fall off due to vibration and collision during movement. Once it falls off, it will cause leakage of the sampling head. Utility Model Content

[0005] The purpose of the utility model is to provide a cosmetic microbial contamination detection sampler to solve the problem proposed in the above background technology that in order to ensure the stroke of the first rack and the second rack, it is necessary to increase the installation space, which occupies more internal space of the detection tube and is not convenient for disassembly and maintenance.

[0006] The utility model provides the following technical solution: a cosmetic microbial contamination detection sampler comprises a sampling tube, the bottom of the sampling tube is slidably connected with a protective component via a limit plate, the top of the limit plate is provided with a supporting spring, the bottom end of the sampling tube is snap-connected with the protective component via a suction tube, a supporting platform is fixedly provided at the top of the sampling tube, finger rests are fixedly provided on both sides of the supporting platform, a baffle is installed inside the supporting platform via screws, a pressure rod is slidably connected to the baffle, a reset spring is sleeved on the surface of the pressure rod, a pressure plate is fixedly provided on the top of the pressure rod, a sealing component is installed at the bottom of the pressure rod via a connecting bolt, and the sealing component is slidably connected to the sampling tube.

[0007] As a preferred technical solution of the utility model, the protective assembly includes a protective sleeve and a guide column, the inner wall of the bottom end of the protective sleeve is snap-connected with a rubber ring, the protective sleeve is snap-connected with the suction tube, a connecting rod is fixedly provided on one side of the protective sleeve, a guide column is fixedly provided on one side of the top end of the connecting rod, the support spring is sleeved with the guide column, and a baffle is fixedly provided on the top end of the guide column.

[0008] As a preferred technical solution of the utility model, the two ends of the support spring are overlapped with the limit plate and the baffle respectively, one side of the limit plate is fixedly connected to the bottom of the sampling tube, a column groove is opened on the surface of the sampling tube, and the guide column is slidably connected to the column groove.

[0009] As a preferred technical solution of the utility model, a rod groove is opened in the middle of the baffle plate, the pressure rod is slidably connected to the rod groove, the surface of the baffle plate is opened with ventilation grooves and through holes, the screws are inserted and connected to the through holes, and a thread groove is opened inside the support platform, and the screws are threadedly connected to the thread groove.

[0010] As a preferred technical solution of the utility model, the sealing assembly includes a piston, the surface of the piston is provided with two annular grooves, the annular grooves are snap-connected with sealing rings, and the piston is slidably connected to the inner wall of the sampling tube through the sealing rings.

[0011] As a preferred technical solution of the utility model, a block is fixedly provided in the middle of the top of the piston, the block is fixedly connected to the pressure rod through connecting bolts, a square groove is opened at the bottom end of the pressure rod, and the block is snap-connected with the square groove.

[0012] As a preferred technical solution of the utility model, bolt hole one and bolt hole two are respectively provided on the surface of the block and the two sides of the square groove, the connecting bolt is inserted and connected with bolt hole one and bolt hole two, and the thread part of the connecting bolt is threadedly connected with a locking nut.

[0013] As a preferred technical solution of the utility model, a liquid level window is provided on the surface of the sampling tube, and a liquid level ruler is provided on one side of the liquid level window.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The cosmetic microbial contamination detection sampler can discharge the gas inside the sampling tube by pressing the sealing component through the pressure plate. The pressure plate cooperates with the baffle plate to compress the reset spring. By loosening the pressure plate, the reset spring can drive the sealing component to reset through the pressure plate, so that the inside is in a negative pressure state, so that the cosmetic sample can be quickly extracted. The structure is simple and does not occupy the internal space of the sampling tube. The sealing component can be taken out by loosening the screws and removing the baffle plate. The sealing component is easy to disassemble and repair by loosening the connecting bolts.

[0016] 2. The cosmetic microbial contamination detection sampler can compress the support spring by vertically pulling the protection component. The protection component is rotated when pulled and can be sleeved on the bottom of the suction tube. The support spring can be reset by loosening the protection component, so that the protection component and the suction tube can be tightly fitted. The protection component can protect the suction tube. With the support of the support spring, the protection component can be prevented from loosening and falling off. The device has good firmness, safety and reliability. The protection component can be prevented from loosening and falling off when subjected to vibration and collision during movement, and leakage of the suction tube can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the protective component of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the sealing component of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the baffle plate of the utility model.

[0023] In the figure: 1. sampling tube; 2. limit plate; 3. protection component; 301. protection sleeve; 302. rubber ring; 303. connecting rod; 304. guide column; 305. baffle; 4. support spring; 5. suction tube; 6. liquid level window; 7. liquid level ruler; 8. support platform; 9. finger support; 10. baffle; 11. screw; 12. pressure rod; 13. reset spring; 14. pressure plate; 15. sealing component; 1501. piston; 1502. annular groove; 1503. sealing ring; 1504. block; 1505. bolt hole one; 16. column groove; 17. rod groove; 18. breathable groove; 19. through hole; 20. threaded groove; 21. bolt hole two; 22. connecting bolt; 23. locking nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] See also Figure 1-6 The utility model provides a cosmetic microbial contamination detection sampler, including a sampling tube 1, the bottom of the sampling tube 1 is slidably connected to a protective component 3 through a limit plate 2, the top of the limit plate 2 is provided with a support spring 4, the bottom end of the sampling tube 1 is connected to the protective component 3 through a suction tube 5, the top of the sampling tube 1 is fixedly provided with a support platform 8, both sides of the support platform 8 are fixedly provided with finger supports 9, the inside of the support platform 8 is installed with a baffle 10 through a screw 11, the baffle 10 is slidably connected to a pressure rod 12, the surface of the pressure rod 12 is sleeved with a reset spring 13, the pressure rod 1 2 is fixedly provided with a pressing plate 14, and a sealing assembly 15 is installed at the bottom end of the pressing rod 12 through a connecting bolt 22. The sealing assembly 15 is slidably connected to the sampling tube 1. The sealing assembly 15 is pressed by the pressing plate 14 to discharge the gas inside the sampling tube 1. The pressing plate 14 cooperates with the baffle 10 to compress the reset spring 13. By loosening the pressing plate 14, the reset spring 13 can drive the sealing assembly 15 to reset through the pressing plate 14, so that the inside is in a negative pressure state, and the cosmetic sample can be quickly extracted. The structure is simple and does not occupy the internal space of the sampling tube 1.

[0026] A rod groove 17 is provided in the middle of the baffle plate 10, and the pressure rod 12 is slidably connected to the rod groove 17. The rod groove 17 can guide the pressure rod 12 to prevent the pressure rod 12 from tilting. A venting groove 18 and a through hole 19 are provided on the surface of the baffle plate 10, respectively. The venting groove 18 can ensure the air permeability of the baffle plate 10. The screw 11 is inserted and connected with the through hole 19, and the screw 11 can be inserted through the through hole 19. A threaded groove 20 is provided inside the support platform 8, and the screw 11 is threadedly connected with the threaded groove 20, and the screw 11 can be positioned through the threaded groove 20;

[0027] A liquid level window 6 is provided on the surface of the sampling tube 1 , and a liquid level gauge 7 is provided on one side of the liquid level window 6 . The liquid level inside the sampling tube 1 can be observed through the liquid level window 6 and the liquid level gauge 7 . Example

[0028] The protection component 3 includes a protection sleeve 301 and a guide column 304. The inner wall of the bottom end of the protection sleeve 301 is snap-connected with a rubber ring 302. The protection sleeve 301 is snap-connected with the suction tube 5. The protection sleeve 301 can protect the suction tube 5. The rubber ring 302 can ensure the sealing between the protection sleeve 301 and the suction tube 5 to avoid leakage of the sample. A connecting rod 303 is fixedly provided on one side of the protection sleeve 301. A guide column 304 is fixedly provided on one side of the top of the connecting rod 303. The support spring 4 is sleeved with the guide column 304. A baffle 305 is fixedly provided on the top of the guide column 304. The guide column 304 can prevent the protection sleeve 301 from tilting, and the baffle 305 can prevent the guide column 304 from falling off.

[0029] The two ends of the support spring 4 are overlapped with the limit plate 2 and the baffle 305 respectively. One side of the limit plate 2 is fixedly connected to the bottom of the sampling tube 1. The limit plate 2 can provide support for the support spring 4. The surface of the sampling tube 1 is provided with a column groove 16. The guide column 304 is slidably connected to the column groove 16. The column groove 16 can guide the guide column 304 and can rotate the guide column 304. The horizontal direction of the protective cover 301 can be adjusted. Example

[0030] The sealing assembly 15 includes a piston 1501. Two annular grooves 1502 are provided on the surface of the piston 1501. The annular grooves 1502 are engaged with sealing rings 1503. The annular grooves 1502 can limit the sealing rings 1503 to prevent the sealing rings 1503 from falling off. The piston 1501 is slidably connected to the inner wall of the sampling tube 1 through the sealing rings 1503. The sealing rings 1503 can seal between the piston 1501 and the sampling tube 1.

[0031] A block 1504 is fixedly provided in the middle of the top of the piston 1501. The block 1504 is fixedly connected to the pressure rod 12 through a connecting bolt 22. A square groove is provided at the bottom of the pressure rod 12. The block 1504 is engaged with the square groove. By engaging the block 1504 at the top of the piston 1501 with the square groove at the bottom of the pressure rod 12, the firmness and stability of the piston 1501 are improved.

[0032] The surface of the block 1504 and the two sides of the square groove are respectively provided with a bolt hole 1505 and a bolt hole 21, and the connecting bolt 22 is inserted and connected with the bolt hole 1505 and the bolt hole 21. The thread part of the connecting bolt 22 is threadedly connected with a locking nut 23. The connecting bolt 22 can be inserted through the bolt hole 1505 and the bolt hole 21, and the locking nut 23 can position the connecting bolt 22.

[0033] When in use, the sampling personnel first press the sealing component 15 through the pressing plate 14 to discharge the gas inside the sampling tube 1. The pressing plate 14 cooperates with the baffle 10 to compress the reset spring 13. Then the suction tube 5 is placed into the cosmetics to be tested, and then the pressing plate 14 is slowly released. The reset spring 13 can drive the piston 1501 and the sealing ring 1503 of the sealing component 15 to reset through the pressing plate 14, so that the inside is in a negative pressure state, and the cosmetic sample can be quickly extracted;

[0034] After the sample is extracted into the sampling tube 1, the sampler pulls the protective sleeve 301 of the protective assembly 3 vertically, so that the baffle 305 compresses the supporting spring 4, and rotates the protective sleeve 301 through the guide column 304 to make it coaxial with the extraction tube 5, and then loosens the protective sleeve 301, and the supporting spring 4 can be reset, so that the rubber ring 302 of the protective sleeve 301 can fit tightly with the extraction tube 5, and it can be sleeved on the bottom of the extraction tube 5. The protective sleeve 301 can protect the extraction tube 5. Under the support of the supporting spring 4, the protective sleeve 301 can be prevented from loosening and falling off. The protective sleeve 301 can be prevented from loosening and falling off when it is subjected to vibration and collision during movement. The rubber ring 302 can ensure the sealing between the protective sleeve 301 and the extraction tube 5, thereby avoiding leakage of the sample.

[0035] When it is necessary to test the microbial contamination of the cosmetic sample, the protective sleeve 301 is pulled vertically again, the support spring 4 is compressed, and the guide column 304 is rotated to displace the protective sleeve 301 and the suction tube 5. The support spring 4 can lift the protective sleeve 301, and then the piston 1501 is pressed by the pressing plate 14 to discharge the sample. During the discharge of the sample, the liquid level inside the sampling tube 1 can be observed through the liquid level window 6 and the liquid level ruler 7;

[0036] When the piston 1501 needs to be disassembled and repaired, first loosen the screw 11 and remove the baffle 10, then slide the piston 1501 and take it out of the sampling tube 1, then loosen the locking nut 23 of the connecting bolt 22 to separate the block 1504 from the pressure rod 12, pull the block 1504 out of the square groove of the pressure rod 12, and then the piston 1501 can be disassembled.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cosmetic microbial contamination detection sampler, comprising a sampling tube (1), characterized in that: The bottom of the sampling tube (1) is slidably connected to a protective component (3) via a limit plate (2), a support spring (4) is provided at the top of the limit plate (2), the bottom end of the sampling tube (1) is snap-connected to the protective component (3) via a suction tube (5), a support platform (8) is fixedly provided at the top of the sampling tube (1), finger supports (9) are fixedly provided on both sides of the support platform (8), a baffle plate (10) is installed inside the support platform (8) via screws (11), a pressure rod (12) is slidably connected to the baffle plate (10), a return spring (13) is sleeved on the surface of the pressure rod (12), a pressure plate (14) is fixedly provided at the top of the pressure rod (12), a sealing component (15) is installed at the bottom end of the pressure rod (12) via a connecting bolt (22), and the sealing component (15) is slidably connected to the sampling tube (1).

2. The cosmetic microbial contamination detection sampler according to claim 1, characterized in that: The protection assembly (3) comprises a protection sleeve (301) and a guide column (304); a rubber ring (302) is snap-connected to the inner wall of the bottom end of the protection sleeve (301); the protection sleeve (301) is snap-connected to the suction tube (5); a connecting rod (303) is fixedly provided on one side of the protection sleeve (301); a guide column (304) is fixedly provided on one side of the top end of the connecting rod (303); the support spring (4) is sleeved with the guide column (304); and a baffle (305) is fixedly provided on the top end of the guide column (304).

3. The cosmetic microbial contamination detection sampler according to claim 2, characterized in that: The two ends of the support spring (4) are overlapped with the limit plate (2) and the baffle (305) respectively, one side of the limit plate (2) is fixedly connected to the bottom of the sampling tube (1), a column groove (16) is provided on the surface of the sampling tube (1), and the guide column (304) is slidably connected to the column groove (16).

4. The cosmetic microbial contamination detection sampler according to claim 1, characterized in that: A rod groove (17) is provided in the middle of the baffle plate (10), the pressure rod (12) is slidably connected to the rod groove (17), a venting groove (18) and a through hole (19) are provided on the surface of the baffle plate (10), the screw (11) is inserted and connected to the through hole (19), a thread groove (20) is provided inside the support platform (8), and the screw (11) is threadedly connected to the thread groove (20).

5. The cosmetic microbial contamination detection sampler according to claim 1, characterized in that: The sealing assembly (15) comprises a piston (1501), the surface of the piston (1501) is provided with two annular grooves (1502), the annular grooves (1502) are snap-connected with sealing rings (1503), and the piston (1501) is slidably connected to the inner wall of the sampling tube (1) via the sealing rings (1503).

6. The cosmetic microbial contamination detection sampler according to claim 5, characterized in that: A square block (1504) is fixedly provided in the middle of the top of the piston (1501), and the square block (1504) is fixedly connected to the pressure rod (12) via a connecting bolt (22). A square groove is provided at the bottom end of the pressure rod (12), and the square block (1504) is snap-fitted and connected to the square groove.

7. The cosmetic microbial contamination detection sampler according to claim 6, characterized in that: The surface of the block (1504) and the two sides of the square groove are respectively provided with bolt hole one (1505) and bolt hole two (21), the connecting bolt (22) is inserted and connected with the bolt hole one (1505) and the bolt hole two (21), and the threaded part of the connecting bolt (22) is threadedly connected with a locking nut (23).

8. The cosmetic microbial contamination detection sampler according to claim 1, characterized in that: A liquid level window (6) is provided on the surface of the sampling tube (1), and a liquid level ruler (7) is provided on one side of the liquid level window (6).

Citation Information

Patent Citations

  • Sampling device for cosmetic detection

    CN216433562U