Quick installation structure of clean engineering zero-pressure pipeline

Abstract

The utility model relates to a kind of clean engineering zero-pressure pipeline quick installation structure, its structure includes PVC zero-pressure pipeline, differential pressure & pressure transmitter, PVC hose and fast pressure joint, wherein differential pressure & pressure transmitter connects PVC hose one end, PVC hose other end is installed on PVC zero-pressure pipeline by fast pressure joint, differential pressure & pressure transmitter is communicated with PVC zero-pressure pipeline inside by PVC hose, fast pressure joint.The utility model has the advantages of: reasonable structure design, compared with prior art, without cutting, hot melting, only need to press lock, push needle, installation is simple, can effectively improve installation efficiency, speed up construction progress, reduce processing and construction cost, it can be flexibly arranged in any position on site, and it is suitable for the environment that has been cleaned, without secondary pollution.

Description

Technical Field

[0001] This utility model relates to a rapid installation structure for zero-pressure pipelines, specifically a rapid press-fit structure for zero-pressure pipelines used in cleanroom engineering. Background Technology

[0002] In the field of cleanroom engineering construction, for factories or laboratories that require differential pressure or pressure detection, especially for environments with high cleanliness requirements, these rooms or workshops need to maintain either positive or negative pressure in actual projects, and both require a reference point for calibration. Generally, cleanroom projects involve a large number of differential pressure or pressure transmitters (sensors), necessitating the configuration of a zero-pressure system, which includes zero-pressure piping.

[0003] In existing technologies, zero-pressure pipelines are generally made of stainless steel or PVC pipes, with most projects opting for PVC pipes due to cost considerations. During installation, joints are created by cutting PVC pipes and then heat-fusion welding them together, based on the instrument locations. These typically include T-type or cross-type joints, all achieved by cutting the pipes and then using flanges, threads, or heat fusion. A typical project may have hundreds or even thousands of points, resulting in a large workload and high cost. If additional locations are needed later, further cutting and welding are required, which is very inconvenient and can cause secondary contamination of the already cleaned cleanroom (workshop). Utility Model Content

[0004] This utility model proposes a rapid installation structure for zero-pressure pipelines in cleanroom engineering, which aims to overcome the above-mentioned shortcomings of the existing technology, simplify installation, reduce costs, and prevent secondary pollution.

[0005] The technical solution of this utility model is a quick-installation structure for zero-pressure pipelines in cleanroom engineering. The structure includes a PVC zero-pressure pipeline, a differential pressure and pressure transmitter, a PVC hose, and a quick-connect fitting. The differential pressure and pressure transmitter is connected to one end of the PVC hose, and the other end of the PVC hose is installed on the PVC zero-pressure pipeline via the quick-connect fitting. The differential pressure and pressure transmitter communicates internally with the PVC zero-pressure pipeline through the PVC hose and the quick-connect fitting. The quick-connect fitting enables rapid installation and connection between the differential pressure and pressure transmitter and the PVC zero-pressure pipeline.

[0006] Preferably, each quick-press connector connects to a PVC hose and a differential pressure and pressure transmitter. The quick-press connector includes a PVC sleeve, a sealing ring, a puncture needle, and a length adjustment mechanism. The PVC sleeve includes a straight section and a branch section vertically connected to the middle of the straight section. The length adjustment mechanism is installed at the outer end of the branch section, and the puncture needle is installed at the end of the length adjustment mechanism located inside the branch section and facing the center of the inner side of the straight section. The straight section has an opening and closing slit along its length, and several locking buckles are provided on both sides of the opening and closing slit. Sealing rings are wrapped around the outer sides of both ends of the straight section. During installation, first, open the locking buckles of the straight section of the PVC sleeve, and then fit the straight section of the PVC sleeve onto the PVC zero-pressure pipeline to be installed through the opening and closing slit. Then, lock the locking buckles and wrap sealing rings around both ends of the straight section, so that the puncture needle approaches and is pressed into the PVC zero-pressure pipeline, completing the installation of the quick-press connector.

[0007] Alternatively, preferably, each of the quick-press connectors connects two PVC hoses and two differential pressure and pressure transmitters. The quick-press connector includes a PVC sleeve, a sealing ring, a puncture needle, and a length adjustment mechanism. The PVC sleeve includes a straight pipe section and two branch pipe sections corresponding to the middle of the straight pipe section on both sides. The length adjustment mechanism is installed at the outer end of the branch pipe section. The puncture needle is installed at the end of the length adjustment mechanism located inside the branch pipe section and facing the center of the inner side of the straight pipe section. The straight pipe section has an opening and closing slit in the extension direction, and several locking buckles are provided along both sides of the opening and closing slit. Sealing rings are wrapped around the outer sides of both ends of the straight pipe section.

[0008] Preferably, the length adjustment mechanism includes a fixed part, an externally threaded tube, and a rotating part. The fixed part has an internally threaded hole and is fixed to the outer end of the branch pipe. The externally threaded tube is threaded into the internally threaded hole of the fixed part. The rotating part is fixed near the tail end of the externally threaded tube, and the puncture needle is located at the head of the externally threaded tube. The rotating part causes the externally threaded tube to be screwed into the internally threaded hole of the fixed part, allowing the puncture needle to approach and be pressed into the PVC zero-pressure pipeline.

[0009] The advantages of this utility model are: reasonable structural design; compared with the existing technology, it does not require cutting or hot melting, but only pressing and pushing pins, making installation simple, effectively improving installation efficiency, speeding up construction progress, reducing processing and construction costs, and can be flexibly arranged in any location on site. It is also suitable for environments that have been cleaned and will not cause secondary pollution. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of one embodiment of the rapid installation structure for zero-pressure pipelines in cleanroom engineering according to this utility model.

[0011] Figure 2 This is a schematic diagram of another embodiment of the rapid installation structure for zero-pressure pipelines in cleanroom engineering according to this utility model.

[0012] Figure 3 yes Figure 1A schematic diagram of the structure of a T-type quick-press connector.

[0013] Figure 4 yes Figure 2 A schematic diagram of the structure of a cross-shaped quick-press connector.

[0014] Figure 5 yes Figure 1 , 2 Schematic diagram of the installation process of medium-speed pressure connector.

[0015] In the diagram, 1 is a PVC zero-pressure pipeline, 2 is a differential pressure and pressure transmitter, 3 is a PVC hose, 4 is a quick-connect fitting, 41 is a PVC sleeve, 411 is an opening and closing seam, 412 is a locking buckle, 42 is a sealing ring, 43 is a puncture needle, 44 is a length adjustment mechanism, 441 is a fixing part, 442 is an external threaded pipe, and 443 is a rotating part. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to embodiments and specific implementation methods.

[0017] like Figure 1-5 As shown, a quick-installation structure for a zero-pressure pipeline in a cleanroom project includes a PVC zero-pressure pipeline 1, a differential pressure and pressure transmitter 2, a PVC hose 3, and a quick-connect fitting 4. The differential pressure and pressure transmitter 2 is connected to one end of the PVC hose 3, and the other end of the PVC hose 3 is installed on the PVC zero-pressure pipeline 1 through the quick-connect fitting 4. The differential pressure and pressure transmitter 2 is connected to the interior of the PVC zero-pressure pipeline 1 through the PVC hose 3 and the quick-connect fitting 4.

[0018] As one example, such as Figure 1 , 3 As shown in Figure 5, the quick-press connector 4 is a T-type quick-press connector. Each quick-press connector 4 connects to a PVC hose 3 and a differential pressure & pressure transmitter 2. Specifically, the quick-press connector 4 includes a PVC sleeve 41, a sealing ring 42, a puncture needle 43, and a length adjustment mechanism 44. The PVC sleeve 41 includes a straight pipe section and a branch pipe section vertically connected to the middle of the straight pipe section. The length adjustment mechanism 44 is installed at the outer end of the branch pipe section. The puncture needle 43 is installed at the end of the length adjustment mechanism 44 located inside the branch pipe section and facing the center of the inner side of the straight pipe section. The straight pipe section has an opening and closing slit 411 along its extension direction, and several latches 412 are provided on both sides of the opening and closing slit 411. Sealing rings 42 are wrapped around the outer sides of both ends of the straight pipe section. The length adjustment mechanism 44 includes a fixing part 441, an external threaded pipe 442, and a rotating part 443. The fixing part 441 has an internal threaded hole and is fixed to the outer end of the branch pipe section. The external threaded pipe 442 is threaded into the internal threaded hole of the fixing part 441. The rotating part 443 is fixed near the tail of the external threaded pipe 442. The puncture needle 43 is provided at the head of the external threaded pipe 442.

[0019] During installation, first open the locking buckle 412 of the straight pipe section of the PVC sleeve 41, and then place the straight pipe section of the PVC sleeve 41 onto the position of the PVC zero-pressure pipeline 1 to be installed through the opening and closing joint 411. Then lock the locking buckle 412, and wrap the sealing rubber rings 42 around both ends of the straight pipe section. Then, screw the external threaded pipe 442 into the internal threaded hole of the fixing part 441 through the rotating part 443. Then, approach and press the piercing needle 43 into the PVC zero-pressure pipeline 1 to complete the installation of the quick-press connector.

[0020] As another embodiment, such as Figure 2 , 4 As shown in Figure 5, the quick-press connector 4 is a cross-shaped quick-press connector. Each quick-press connector 4 connects two PVC hoses 3 and two differential pressure and pressure transmitters 2. Specifically, the quick-press connector 4 includes a PVC sleeve 41, a sealing ring 42, a puncture needle 43, and a length adjustment mechanism 44. The PVC sleeve 41 includes a straight pipe section and two branch pipe sections corresponding to the two sides of the middle of the straight pipe section. The length adjustment mechanism 44 is installed at the outer end of the branch pipe section, and the puncture needle 43 is installed at the end of the length adjustment mechanism 44 located inside the branch pipe section and facing the inner side of the straight pipe section. At the center, a slit 411 is provided in the extension direction of the straight pipe section. Several latches 412 are provided on both sides of the slit 411. Sealing rings 42 are wrapped around the outer sides of both ends of the straight pipe section. The length adjustment mechanism 44 includes a fixing part 441, an external threaded pipe 442 and a rotating part 443. The fixing part 441 has an internal threaded hole and is fixed to the outer end of the branch pipe section. The external threaded pipe 442 is threaded into the internal threaded hole of the fixing part 441. The rotating part 443 is fixed near the tail of the external threaded pipe 442. The puncture needle 43 is provided at the head of the external threaded pipe 442.

[0021] During installation, first open the locking buckle 412 of the straight pipe section of the PVC sleeve 41, and then place the straight pipe section of the PVC sleeve 41 onto the position of the PVC zero-pressure pipeline 1 to be installed through the opening and closing joint 411. Then lock the locking buckle 412, and wrap the sealing rubber rings 42 around both ends of the straight pipe section. Through the two rotating parts 443, screw the external threaded pipes 442 on both sides into the internal threaded holes of the fixing part 441. The two piercing needles 43 approach and press into the PVC zero-pressure pipeline 1 to complete the installation of the quick-press connector.

[0022] Based on the above structure, the design of the opening and closing seam 411 in conjunction with the locking buckle 412 enables rapid installation. By piercing the PVC zero-pressure pipeline 1 with the piercing needle 43, all pressure and differential pressure transmitters (sensors) are aligned to a single reference point. No cutting or heat fusion is required during installation, significantly improving installation efficiency and making it suitable for mass production and widespread use. It effectively reduces costs, allows for flexible placement in any location on-site, greatly reduces workload, and is suitable for use in cleaned environments. It can be used immediately upon pressure adjustment, significantly reducing equipment costs while minimizing installation time.

[0023] All of the components described above are existing technologies, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A rapid installation structure for zero-pressure pipelines in cleanroom engineering, characterized in that, It includes a PVC zero-pressure pipeline (1), a differential pressure and pressure transmitter (2), a PVC hose (3), and a quick-connect fitting (4). The differential pressure and pressure transmitter (2) is connected to one end of the PVC hose (3), and the other end of the PVC hose (3) is installed on the PVC zero-pressure pipeline (1) through the quick-connect fitting (4). The differential pressure and pressure transmitter (2) is connected to the inside of the PVC zero-pressure pipeline (1) through the PVC hose (3) and the quick-connect fitting (4).

2. The rapid installation structure for zero-pressure pipelines in cleanroom engineering as described in claim 1, characterized in that, Each of the quick-press connectors (4) is connected to a PVC hose (3) and a differential pressure & pressure transmitter (2). The quick-press connector (4) includes a PVC sleeve (41), a sealing ring (42), a puncture needle (43), and a length adjustment mechanism (44). The PVC sleeve (41) includes a straight pipe section and a branch pipe section vertically connected to the middle of the straight pipe section. The length adjustment mechanism (44) is installed at the outer end of the branch pipe section. The puncture needle (43) is installed at the end of the length adjustment mechanism (44) located inside the branch pipe section and facing the center of the inner side of the straight pipe section. The straight pipe section has an opening and closing slit (411) in the extension direction. Several latches (412) are provided on both sides of the opening and closing slit (411). The outer sides of both ends of the straight pipe section are wrapped with sealing rings (42).

3. The rapid installation structure for zero-pressure pipelines in cleanroom engineering as described in claim 1, characterized in that, Each of the quick-press connectors (4) connects two PVC hoses (3) and two differential pressure and pressure transmitters (2). The quick-press connector (4) includes a PVC sleeve (41), a sealing ring (42), a puncture needle (43), and a length adjustment mechanism (44). The PVC sleeve (41) includes a straight pipe section and two branch pipe sections that are vertically connected to the middle of the straight pipe section on both sides. The length adjustment mechanism (44) is installed at the outer end of the branch pipe section. The puncture needle (43) is installed at the end of the length adjustment mechanism (44) located inside the branch pipe section and facing the center of the inner side of the straight pipe section. The straight pipe section has an opening and closing slit (411) in the extension direction. Several latches (412) are provided on both sides of the opening and closing slit (411). The outer sides of both ends of the straight pipe section are wrapped with sealing rings (42).

4. A rapid installation structure for zero-pressure pipelines in cleanroom engineering as described in claim 2 or 3, characterized in that, The length adjustment mechanism (44) includes a fixing part (441), an external threaded tube (442), and a rotating part (443). The fixing part (441) has an internal threaded hole and is fixed to the outer end of the branch pipe. The external threaded tube (442) is threaded into the internal threaded hole of the fixing part (441). The rotating part (443) is fixed near the tail of the external threaded tube (442). The puncture needle (43) is set at the head of the external threaded tube (442).

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