Pressure-resistant gas microorganism collector

Abstract

The utility model discloses a pressure-resistant gas microorganism collector which comprises a first shell and a second shell, and air holes are formed in the first shell and the second shell; a filtering assembly positioning part for placing the filtering assembly is arranged in the second shell; a boss is arranged in the circumferential direction of the first shell, a rotatable rotating assembly is arranged on the second shell, and a groove matched with the boss is formed in the rotating assembly; the relative position state between the boss and the groove is changed by rotating the rotating assembly so that the first shell can be switched between the locking state and the unlocking state. According to the utility model, the locking mode is convenient to use; and the first shell is connected with the second shell in a boss clamping manner, so that the first shell and the second shell have relatively high pressure resistance, and even if gas with relatively high pressure is introduced, the first shell and the second shell cannot be broken apart.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sampling device, in particular to a pressure-resistant gas microorganism collector. BACKGROUND

[0002] Compressed gas is used in some key production processes of pharmaceutical enterprises and food enterprises, and if the compressed gas and air entering the sterile production environment are contaminated by microorganisms, the quality of products will be seriously reduced, and the risk of potential cross contamination is introduced. Therefore, it is very important to monitor the microorganisms in the compressed gas in a clean environment.

[0003] When detecting the microorganisms in the compressed gas, sampling needs to be carried out first. The traditional sampling device comprises an outer shell composed of an upper half shell and a lower half shell, a filter assembly is arranged in the outer shell, an air inlet is arranged at one end of the outer shell, and an air outlet is arranged at the other end of the outer shell. Air enters the outer shell through the air inlet, and the microorganisms in the gas are intercepted on the filter assembly after the gas passes through the filter assembly, so that the collection of microorganisms in the air is realized; after the collection is completed, the outer shell is opened, the filter assembly is taken out, and the collected microorganisms are analyzed.

[0004] However, the existing sampling device has the following disadvantages: the upper half shell and the lower half shell are usually connected in a threaded manner, the upper half shell needs to be rotated for multiple turns to be fixed with the lower half shell, and after the sampling is completed, the upper half shell also needs to be rotated in the opposite direction for multiple turns to be disassembled and the filter assembly is taken out, which makes the installation and opening of the outer shell more troublesome and inconvenient to use. SUMMARY

[0005] The utility model aims at solving the insufficient in prior art, and provides a pressure-resistant gas microorganism collector.

[0006] The utility model discloses a pressure-resistant gas microorganism collector, which comprises a first shell body and a second shell body, and gas holes are arranged on the first shell body and the second shell body.

[0007] Preferably, the second shell body is provided with an annular groove in the circumferential direction, and the rotating assembly has a circular ring structure and is arranged in the annular groove.

[0008] Preferably, the rotating assembly is provided with a limiting pin, and the second shell is provided with a rotation limiting component matched with the limiting pin and used for limiting the rotation angle of the rotating assembly.

[0009] Preferably, the rotation limiting component comprises two limiting screws, and the limiting pin is located between the two limiting screws.

[0010] Preferably, the rotating assembly is connected by two half rings.

[0011] Preferably, the rotating assembly is provided with a decorative rotating ring on the outer side.

[0012] Preferably, the first shell is provided with a sealing ring, and the filtering assembly comprises a circular outer frame and a filter membrane arranged in the outer frame, and the sealing ring is in contact with the outer frame of the filtering assembly when the first shell is locked with the second shell.

[0013] Preferably, the first shell is provided with a perforated plate, and the perforated plate is provided with a plurality of through holes.

[0014] Preferably, the filtering assembly positioning component comprises a fixed disc, a sliding piece and a connecting block, the fixed disc is provided with at least two sliding grooves, the sliding piece is located on the upper side of the fixed disc, the lower end of the sliding piece is provided with a guide boss arranged in the sliding groove, the lower side of the fixed disc is provided with a connecting block corresponding to the sliding piece, the connecting block is connected with the sliding piece, and an elastic piece is arranged between the connecting block and the fixed disc; and the filtering assembly is arranged between the sliding pieces.

[0015] Preferably, the elastic piece is a spring.

[0016] The utility model discloses the beneficial effect is: in the utility model, the connecting state between the first shell and the second shell is controlled by rotating the rotating assembly, and the first shell can be locked or unlocked only by rotating a smaller angle, which is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of the utility model.

[0018] Figure 2 It is the explosion drawing of the utility model.

[0019] Figure 3 It is the sectional view of the utility model.

[0020] Figure 4 It is the schematic drawing when the first shell is in the open state in the utility model.

[0021] Figure 5 Structure diagram of the positioning part of the filter assembly.

[0022] In the figure: 1, first shell, 1-1, boss, 2, second shell, 2a, positioning groove, 3, decorative rotating ring, 4, air hole, 5, filter assembly, 6, filter assembly positioning part, 6-1, fixed disc, 6-1a, sliding groove, 6-2, sliding piece, 6-3, connecting block, 6-4, elastic piece, 7, half ring body, 8, limiting screw, 9, limiting pin, 10, sealing ring, 11, perforated plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0024] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0025] As shown in Figures 1-5 A pressure-resistant gas microorganism collector includes a first shell 1 and a second shell 2, and air holes 4 are arranged on the first shell 1 and the second shell 2. The second shell 2 is provided with a filter assembly positioning part 6 for placing a filter assembly 5. The first shell 1 is provided with a boss 1-1 in the circumferential direction, and the second shell 2 is provided with a rotatable rotating assembly. The rotating assembly is provided with a groove matched with the boss 1-1. By rotating the rotating assembly to change the relative position state between the boss 1-1 and the groove, the first shell 1 can be switched between the locked state and the unlocked state.

[0026] The utility model discloses, through the rotation of rotation subassembly comes the connection state between first casing 1 and second casing 2 is controlled.

[0027] The utility model discloses, through the rotation of rotation subassembly comes the connection state between first casing 1 and second casing 2 is controlled, only needs to rotate smaller angle to realize the locking of first casing 1 or the unlocking of first casing 1, and it is convenient to use, and first casing 1 is connected with second casing 2 through the mode of the clamping of boss 1-1, and first casing 1 and second casing 2 have higher pressure resistance between them, even if the gas of higher pressure is passed, first casing 1 and second casing 2 also will not break open between second casing 2. The product can be assembled quickly, and it is convenient to mass production.

[0028] The air hole 4 on the first casing 1 is located at the top of the first casing, and the air hole 4 on the second casing 2 is located at the bottom of the second casing 2.

[0029] The second casing 2 is provided with a ring groove in the circumferential direction, the rotation subassembly is in the form of a circular ring, and the rotation subassembly is arranged in the ring groove. The rotation subassembly can rotate in the ring groove.

[0030] The rotation subassembly is provided with a limiting pin 9, and the second casing 2 is provided with a rotation limiting component that cooperates with the limiting pin 9 and is used for limiting the rotation angle of the rotation subassembly.

[0031] In the embodiment, the rotation limiting component includes two limiting screws 8, and the limiting pin 9 is located between the two limiting screws 8.

[0032] The rotation subassembly is connected by two half rings 7. The rotation subassembly adopts the structure of two halves, which facilitates the assembly between the rotation subassembly and the second casing 2.

[0033] A decorative rotating ring 3 is provided on the outer side of the rotating assembly. Several anti-slip grooves 6-1a are provided on the outer side of the decorative rotating ring 3. Rotating the decorative rotating ring 3 drives the rotating assembly to rotate, thereby switching the connection state of the first housing 1. The rotating assembly has a rotating handle for easy rotation operation and more comfortable use.

[0034] The first housing 1 is provided with a sealing ring 10; the filter assembly 5 includes a circular outer frame and a filter membrane disposed in the outer frame. When the first housing 1 and the second housing 2 are locked together, the sealing ring 10 contacts the outer frame on the filter assembly 5.

[0035] The first housing 1 is provided with a perforated plate 11, which has a plurality of through holes. The diameter of the through holes can be determined according to actual needs, and larger diameter impurities in the gas can be filtered through the perforated plate 11.

[0036] Furthermore, the filter assembly positioning component 6 includes a fixed plate 6-1, a sliding member 6-2, and a connecting block 6-3. The fixed plate 6-1 is provided with at least two sliding grooves 6-1a. The sliding member 6-2 is located on the upper side of the fixed plate 6-1, and the lower end of the sliding member 6-2 is provided with a guide boss, which is disposed in the sliding groove 6-1a. The lower side of the fixed plate 6-1 is provided with a connecting block 6-3 corresponding to the sliding member 6-2, and the connecting block 6-3 is connected to the sliding member 6-2. An elastic member 6-4 is provided between the connecting block 6-3 and the fixed plate 6-1. The filter assembly 5 is placed between the sliding members 6-2.

[0037] The fixed disk 6-1 is fixedly or detachably connected to the second housing 2. A sliding groove 6-1a is arranged radially along the fixed disk 6-1, and the grooves 6-1a are evenly distributed on the fixed disk 6-1. The sliding member 6-2 can slide within a certain range. When placing the filter assembly 5, the filter assembly 5 is placed between the sliding members 6-2, and the elastic member 6-4 presses the sliding members 6-2 against the outer side of the filter assembly 5, thereby fixing the filter assembly 5. The sliding nature of the sliding member 6-2 allows the filter assembly positioning component 6 to adapt to filter assemblies 5 of different diameters.

[0038] In this embodiment, the elastic element 6-4 is a spring.

[0039] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A pressure-resistant gas microorganism collector characterized by comprising: The first shell and the second shell are provided with air holes; the second shell is provided with a filter assembly positioning component for placing a filter assembly; the first shell is provided with a boss in the circumferential direction, the second shell is provided with a rotatable rotating assembly, the rotating assembly is provided with a groove matched with the boss; the relative position state between the boss and the groove is changed by rotating the rotating assembly to switch the first shell between the locked state and the unlocked state.

2. The pressure-resistant gas microorganism collector according to claim 1, wherein The second shell is provided with a ring groove in the circumferential direction, the rotating assembly is in the form of a ring, and the rotating assembly is arranged in the ring groove.

3. The pressure-resistant gas microorganism collector according to claim 1, wherein The rotating assembly is provided with a limiting pin, and the second shell is provided with a rotation limiting component matched with the limiting pin and used for limiting the rotation angle of the rotating assembly.

4. The pressure-resistant gas microorganism collector according to claim 3, wherein The rotation limiting component includes two limiting screws, and the limiting pin is located between the two limiting screws.

5. The pressure-resistant gas microorganism collector according to claim 1, wherein The rotating assembly is connected by two half rings.

6. The pressure-resistant gas microorganism collector according to claim 1, wherein The outer side of the rotating assembly is provided with a decorative rotating ring.

7. The pressure-resistant gas microorganism collector according to claim 1, wherein The first shell is provided with a sealing ring; the filter assembly includes a circular outer frame and a filter membrane arranged in the outer frame; when the first shell is locked with the second shell, the sealing ring is in contact with the outer frame of the filter assembly.

8. The pressure-resistant gas microorganism collector according to claim 1, wherein The first shell is provided with a perforated plate, and the perforated plate is provided with a plurality of through holes.

9. The pressure-resistant gas microorganism collector according to claim 1, wherein The filter assembly positioning component includes a fixed disc, a sliding member, and a connecting block; the fixed disc is provided with at least two sliding grooves; the sliding member is located on the upper side of the fixed disc; the lower end of the sliding member is provided with a guide boss arranged in the sliding groove; the lower side of the fixed disc is provided with a connecting block corresponding to the sliding member; the connecting block is connected with the sliding member; an elastic member is arranged between the connecting block and the fixed disc; and the filter assembly is placed between the sliding members.

10. The pressure-resistant gas microorganism collector according to claim 9, wherein The elastic member is a spring.

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