Clean room system
By using a fixed support tube channel design in the cleanroom system, the problems of aging and hygiene dead spots caused by the exposure of sampling tubes to the cleanroom environment are solved, achieving sealed protection of the sampling tubes and extending their service life.
Patent Information
- Application Number
- CN202422917350.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In the existing technology, particle counters for touch screens larger than 10 inches cannot be directly embedded in the color steel plates used in cleanrooms. This results in the sampling tubes needing to be connected through sampling tubes, which are exposed to the cleanroom environment and are susceptible to oxidation, chemical corrosion, and ultraviolet radiation, thus shortening their service life and easily creating unsanitary corners.
A fixed bracket is used with a tube passage. The sampling head is fixed to the bracket and the upper end of the tube passage is blocked. The sampling tube is connected to the sampling head inside the tube passage, and the other end is connected to the particle counter to form a closed space to avoid contact with the cleanroom environment.
It extends the service life of the sampling tube, prevents contaminants from accumulating in cracks, avoids the formation of unsanitary corners, and improves the cleanliness and durability of the sampling tube.
Smart Images
Figure CN223526028U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clean room technical field especially relates to a clean room system. BACKGROUND
[0002] Particle counter is generally used for measuring the number of dust particles in unit volume and particle size distribution in clean room. The device has a wide application in many fields, including but not limited to laser dust particle counter, blood center, epidemic prevention station, disease control center, quality supervision department, electronic industry, pharmaceutical workshop, semiconductor, optical or precision machining, plastic, paint spraying, hospital, environmental protection, testing institute and other production enterprises and scientific research departments.
[0003] Particle counter device includes sampling head and particle counter with touch screen. For the touch screen below 10 inches, the sampling head can be directly connected with the particle counter without using sampling tube.
[0004] In order to meet the use demand, sometimes particle counter with touch screen above 10 inches is used. The thickness of the touch screen is greater than the thickness of the color steel plate for clean room, which cannot be embedded. However, for particle counter with touch screen above 10 inches, in order to meet the installation requirement, the prior art proposes to place the particle counter in the box. At this time, the particle counter and the sampling head need to be connected through the sampling tube. However, this will make the sampling tube completely or partially exposed in the clean room internal environment, which may be affected by oxidation, chemical corrosion, ultraviolet and other factors, resulting in aging of the sampling tube and shortening the service life of the sampling tube, and causing cracks in the sampling tube. The dust and dirt in the clean room internal environment deposit in the sampling tube crack, so that it is not easy to clean, forming a sanitary dead angle and increasing the pollution risk. UTILITY MODEL CONTENTS
[0005] To solve the above technical problems, the utility model provides a clean room system, which not only makes the sampling tube without sanitary dead angle, but also prolongs the service life of the sampling tube.
[0006] To achieve this purpose, the utility model adopts the following technical scheme:
[0007] The clean room system comprises a particle counter, a sampling head, a sampling tube and a box. The particle counter is placed in the box. The clean room system further comprises a fixing support, which is provided with a pipe passing channel. The sampling head is fixed to the upper end of the fixing support and blocks the upper end of the pipe passing channel. The lower end of the pipe passing channel is in communication with the inner cavity of the box. The upper end of the sampling tube is connected with the sampling head and the connection position is located in the pipe passing channel. The lower end of the sampling tube passes through the pipe passing channel and is connected with the particle counter.
[0008] Optionally, the lower end of the sampling head is inserted into the pipe passing channel, an inner threaded through hole is arranged on the inner circumferential wall of the pipe passing channel and penetrates to the outer wall of the fixing support, and the clean room system further comprises a threaded fastener which is threadedly connected with the inner threaded through hole and abuts against the sampling head in the pipe passing channel.
[0009] Optionally, a first sealing member is arranged between the inner circumferential wall of the pipe passing channel and the sampling head.
[0010] Optionally, the clean room system further comprises a workbench, the box is located below the workbench, the sampling head is located above the workbench, and the fixing support is arranged through the workbench.
[0011] The fixing support comprises a support body and a limiting portion protruding from the outer circumferential wall of the support body, a locking nut is threadedly connected with the support body, and the workbench is clamped between the limiting portion and the locking nut.
[0012] Optionally, the outer circumferential surface of the limiting portion is a conical surface, and the outer diameter of the conical surface gradually increases from top to bottom.
[0013] Optionally, the support body comprises an upper pipe passing pipe located above the limiting portion and a lower pipe passing pipe located below the limiting portion, the upper end and the lower end of the limiting portion are connected to the upper pipe passing pipe and the lower pipe passing pipe respectively, and the inner cavities of the upper pipe passing pipe and the lower pipe passing pipe are communicated to form the pipe passing channel.
[0014] Optionally, the fixing support is an integrally formed structural member.
[0015] Optionally, the fixing support is a stainless steel structure.
[0016] Optionally, the box has a top opening, the workbench is connected with the box to block the top opening, and the lower end of the fixing support is located in the box.
[0017] Optionally, the lower end of the fixing support is fixedly connected with the box, a through hole is arranged on the box, and the pipe passing channel is communicated with the inner cavity of the box through the through hole.
[0018] The utility model discloses the beneficial effects of:
[0019] The utility model discloses a fixed support is provided with the pipe through channel, and the sampling head is fixed to the fixed support and blocks one end of the pipe through channel, and the other end of the pipe through channel is communicated with the inner chamber of the box body, one end of the sampling pipe is connected with the sampling head and the connecting position is located in the pipe through channel, and the other end passes through the pipe through channel and is connected with the particle counter, so that the sampling pipe is completely in the closed space and does not contact the internal environment of the clean room, prevents the influence of oxidation, chemical corrosion, ultraviolet and other factors in the internal environment of the clean room and leads to the service life of the sampling pipe to be shortened due to the ageing and crack of the sampling pipe, and simultaneously, since the sampling pipe is completely in the closed space, the pollutants in the internal environment of the clean room cannot enter the pipe through channel and deposit at the crack of the sampling pipe, so that the sanitary dead angle is not formed. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structure schematic diagram of the clean room system in the embodiment one of the utility model.
[0021] Figure 2 It is the structure schematic diagram of the clean room system in the embodiment two of the utility model.
[0022] In the drawing: 1, particle counter;2, sampling head;3, sampling pipe;4, box body;5, fixed support;51, upper pipe;52, lower pipe;53, limit portion;6, threaded fastener;7, locking nut;8, workbench. DETAILED DESCRIPTION
[0023] The utility model will be described further in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limit the utility model. In addition, it needs to be explained that, for the convenience of description, only the parts related to the utility model are shown in the drawings, not all structures.
[0024] In the description of the utility model, unless there is explicit definition and limitation, the terms "link", "connection", "fix" should be understood broadly, for example, can be fixed connection, or detachable connection, or integral;Can be mechanical connection, or electrical connection;Can be directly connected, or indirectly connected through the intermediate medium, can be the communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0025] In the present utility model, unless otherwise expressly provided and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper side" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower side" and "lower surface" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0026] In the description of the present embodiment, the terms "upper", "lower", "right", and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second" are only used to distinguish in description and have no special meaning.
[0027] Embodiment one:
[0028] As shown in Figure 1 The embodiment of the present utility model provides a clean room system, including particle counter 1, sampling head 2, sampling tube 3 and box body 4, particle counter 1 is placed in box body 4, and the clean room system further includes fixed support 5, fixed support 5 is equipped with pipe passing channel, sampling head 2 is fixed in fixed support 5 and blocks one end of pipe passing channel, the other end of pipe passing channel is communicated with the inner chamber of box body 4, one end of sampling tube 3 is connected with sampling head 2 and the connection position is located in pipe passing channel, and the other end passes through pipe passing channel and is connected with particle counter 1. It needs to be explained that when particle counter is arranged in the box, the touch screen of ion counter should be exposed and only the touch surface of the touch screen is exposed, so as to facilitate user operation.
[0029] Sampling head 2 blocks the upper end of pipe passing channel, so that the particles, dust and other pollutants in the internal environment of clean room cannot enter its interior through the gap of the upper end of pipe passing channel, the connection position of sampling tube 3 and sampling head 2 is located in pipe passing channel, sampling tube 3 is connected with particle counter 1 in box body 4 through pipe passing channel, fixed support 5 with pipe passing channel protects sampling tube 3 in its interior, so that sampling tube 3 is completely isolated from the internal environment of clean room, prevents sampling tube 3 from being affected by oxidation, chemical corrosion, ultraviolet and other factors in the internal environment of clean room, causes sampling tube 3 to age and crack, and shortens the service life of sampling tube 3, and simultaneously, since sampling tube 3 is completely in a closed space, the pollutants in the internal environment of clean room cannot enter pipe passing channel and deposit at the crack of sampling tube 3, so that no sanitary dead angle is formed.
[0030] Further, in order to fix the sampling head 2 and the fixing support 5, one end of the sampling head 2 is inserted into the pipe passing channel, an internally threaded through hole is formed at the upper end of the fixing support 5, the threaded fastener 6 is threadedly connected with the internally threaded through hole and abuts against the sampling head 2 in the pipe passing channel at one end, and meanwhile, the threaded fastener 6 also seals the internally threaded through hole.
[0031] Specifically, the internally threaded through hole is provided in plurality, and the plurality of internally threaded through holes are arranged in a circumferential direction at the upper end of the fixing support 5. By only screwing the threaded fastener 6 to abut against the lower end of the sampling head 2, the abutting force from different directions fixes the lower end of the sampling head 2. The fixing mode is simple, and the disassembly and assembly are convenient.
[0032] Exemplarily, two internally threaded through holes are provided and are distributed at 180°. In this way, the lower end of the sampling head 2 is subjected to abutting force from opposite directions, so that the lower end of the sampling head 2 is uniformly stressed, firmly fixed, and conveniently disassembled and assembled.
[0033] Further, in order to avoid that the pollutants in the internal environment of the clean room enter the pipe passing channel through the gap between the upper end of the fixing support 5 and the sampling head 2, a first sealing member is arranged between the inner wall of the pipe passing channel and the sampling head 2.
[0034] Optionally, the first sealing member is arranged below the internally threaded through hole, and the first sealing member seals and separates the space above and below it, so that the pollutants in the internal environment of the clean room enter the space above the first sealing member through the gap between the upper end of the fixing support 5 and the sampling head 2, but cannot enter the space below it, and the pollutants cannot deposit on the outer surface of the sampling pipe 3. The first sealing member not only prevents the gap between the sampling head 2 and the upper end of the fixing support 5 from connecting the internal environment of the clean room with the pipe passing channel, but also further ensures the cleanliness of the sampling pipe 3.
[0035] Further, the clean room system further comprises a workbench 8, the box body 4 is located below the workbench 8, the space below the workbench is fully utilized, the occupation of other space in the clean chamber is reduced, the sampling head 2 is located above the workbench 8, the sampling of the on-line particles in the air in the clean chamber is facilitated, the fixing support 5 penetrates through the workbench 8 and is fixed to the workbench 8, and is used to stably place the sampling head 2 and the fixing support 5 on the workbench 8, so as to avoid that the sampling head 2 is damaged due to the accidental touching and the fixing support 5 is tilted.
[0036] In order to ensure that the fixing support 5 is stably placed on the workbench 8, a limiting portion 53 is protruded on the outer peripheral wall of the lower end of the support body, a locking nut 7 is arranged below the limiting portion 53, the limiting portion 53 abuts against the workbench 8, the support body at the lower end of the limiting portion 53 is penetrated into the workbench 8, and the workbench 8 is clamped between the limiting portion 53 and the locking nut 7 through the threaded connection between the locking nut 7 and the lower end of the support body. The fixing support 5 is fixedly connected with the workbench 8 under the clamping force by screwing the locking nut 7, and the fixing support 5 is separated from the workbench 8 by unscrewing the locking nut 7. In this way, the fixing mode is simple, and the disassembly is convenient.
[0037] Further, the outer peripheral surface of the limiting portion 53 is provided as a conical surface, and the outer diameter of the conical surface gradually increases from top to bottom. The conical surface not only forms an obtuse angle with the outer peripheral surface of the support body above the limiting portion 53, but also forms an obtuse angle with the workbench 8, which is convenient for the operator to clean and maintain the fixing support 5 and the workbench 8.
[0038] Optionally, the conical surface and the outer peripheral surface of the fixing support 5 above the limiting portion 53 are smoothly connected, so that the connecting position of the outer peripheral surface of the support body above the limiting portion 53 is extremely easy to clean.
[0039] Further, the fixing support 5 includes an upper through pipe 51 above the limiting portion 53 and a lower through pipe 52 below the limiting portion 53, and the upper and lower ends of the limiting portion 53 are connected with the upper through pipe 51 and the lower through pipe 52, respectively. The inner cavities of the upper through pipe 51 and the lower through pipe 52 are communicated to form a pipe penetrating channel. In this way, the fixing support 5 is simple in processing, high in processing efficiency, and low in processing cost.
[0040] Exemplarily, the upper through pipe 51 and the lower through pipe 52 are straight pipes, so that the sampling pipe 3 in the pipe penetrating channel is vertically penetrated into the particle counter 1. The sampling pipe 3 with a proper length will not be bent, which reduces the aging degree of the sampling pipe 3 itself, reduces the generation of cracks, and prolongs the service life. Dust and dirt are deposited at the cracks of the sampling pipe 3, which is not easy to clean and is easy to form a sanitary dead angle. The straight pipe structure is convenient for the processing and manufacturing of structural parts and is easy for the operator to clean and maintain. The limiting portion 53 includes but is not limited to a hollow vertebral body structure, which can be provided as a hollow block body or other structures.
[0041] Exemplarily, the lower end of the upper through pipe 51 is penetrated into the upper end of the limiting portion 53 and is welded and fixed to the limiting portion 53, and the upper end of the lower through pipe 52 is penetrated into the lower end of the limiting portion 53 and is welded and fixed to the limiting portion 53. The upper through pipe 51 and the limiting portion 53 are welded and fixedly connected by using the welding process, which is simple in connection mode and low in processing cost. By using pickling process and the like, the welding slag and oxides are removed, which not only improves the quality of the welding position of the upper through pipe 51 and the limiting portion 53, but also makes the surface of the welding position of the upper through pipe 51 and the limiting portion 53 more clean and beautiful, which is not easy to deposit dust and dirt and is convenient for the operator to clean and maintain.
[0042] In other embodiments, the fixing bracket 5 may be a one-piece molded structural component.
[0043] Furthermore, the fixed bracket 5 is made of stainless steel, which has advantages such as corrosion resistance, durability, high strength, and easy cleaning.
[0044] Furthermore, the box 4 is provided with a top opening, and the lower surface of the workbench 8 is connected to the top of the box 4 to seal the top opening. The lower end of the fixed bracket 5 is located inside the box 4, so that the fixed bracket 5 is connected to the box 4. By using the lower surface of the workbench 8 to seal the top opening of the box 4, a completely closed space is formed between the fixed bracket 5 and the box 4, so that pollutants in the clean room environment cannot come into contact with the sampling tube 3. This not only avoids creating sanitary dead corners, but also extends the service life of the sampling tube 3.
[0045] Example 2:
[0046] like Figure 2 As shown, the difference between this embodiment and embodiment one is that the box 4 is not connected to the workbench 8. A through hole is provided on the box 4. The lower end of the fixed bracket 5 passes through the workbench 8 and is fixedly connected to the box 4. The tube channel communicates with the inner cavity of the box 4 through the through hole. The sampling tube 3 enters the box 4 through the tube channel and is connected to the particle counter 1, so that the sampling tube 3 is isolated from the clean room environment, thereby avoiding shortening the service life of the sampling head 2 and creating hygiene dead corners.
[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A clean room system comprising a particle counter (1), a sampling head (2), a sampling tube (3) and a housing (4), said particle counter (1) being placed in said housing (4), characterized in that, The clean room system further comprises a fixed support (5) provided with a pipe penetrating channel, the sampling head (2) is fixed to the upper end of the fixed support (5) and blocks the upper end of the pipe penetrating channel, the lower end of the pipe penetrating channel is communicated with the inner cavity of the box (4), the upper end of the sampling pipe (3) is connected with the sampling head (2) and the connection position is located in the pipe penetrating channel, and the lower end of the sampling pipe (3) is connected with the particle counter (1) through the pipe penetrating channel.
2. The clean room system of claim 1, wherein, The lower end of the sampling head (2) is inserted into the pipe penetrating channel, the inner circumferential wall of the pipe penetrating channel is provided with an internal thread through hole penetrating to the outer wall of the fixed support, and the clean room system further comprises a threaded fastener (6) which is threadedly connected with the internal thread through hole and abuts against the sampling head (2) in the pipe penetrating channel.
3. The clean room system of claim 1, wherein, A first sealing element is arranged between the inner circumferential wall of the pipe penetrating channel and the sampling head (2).
4. The clean room system of claim 1, wherein, Further comprising a workbench (8), the box (4) is located below the workbench (8), the sampling head (2) is located above the workbench (8), and the fixed support (5) is arranged through the workbench (8); The fixed support (5) comprises a support body and a limiting portion (53) protruding from the outer circumferential wall of the support body, the support body is threadedly connected with a locking nut (7), and the workbench (8) is clamped between the limiting portion (53) and the locking nut (7).
5. The clean room system of claim 4, wherein, The outer circumferential surface of the limiting portion (53) is a conical surface, and the outer diameter of the conical surface gradually increases from top to bottom.
6. The clean room system of claim 4, wherein, The support body comprises an upper pipe penetrating portion (51) located above the limiting portion (53) and a lower pipe penetrating portion (52) located below the limiting portion (53); the upper and lower ends of the limiting portion (53) are connected to the upper pipe penetrating portion (51) and the lower pipe penetrating portion (52) respectively, and the inner cavities of the upper pipe penetrating portion (51) and the lower pipe penetrating portion (52) are communicated to form the pipe penetrating channel.
7. The cleanroom system of claim 1, wherein, The fixed support (5) is an integrally formed structural member.
8. The cleanroom system of claim 1, wherein, The fixed support (5) is a stainless steel structure.
9. The clean room system of claim 4, wherein, The box (4) has a top opening, the workbench (8) is connected with the box (4) to block the top opening, and the lower end of the fixed support (5) is located in the box (4).
10. The clean room system of claim 4, wherein, The lower end of the fixed support (5) is fixedly connected with the box (4), the box (4) is provided with a through hole, and the pipe penetrating channel is communicated with the inner cavity of the box (4) through the through hole.