Quick sampling connector for water supply pipeline

Abstract

The utility model relates to a quick sampling connector for a water supply pipeline and belongs to the technical field of instrument equipment. The device comprises a water inlet communicating pipe and a threaded sleeve, one end of the water inlet communicating pipe is provided with threads, the threaded end of the water inlet communicating pipe is connected with an instrument outside a water supply pipe, the other end of the water inlet communicating pipe is communicated with a water body in the water supply pipe, a far-threaded pipe section of the water inlet communicating pipe is sleeved with a limiting sleeve and a telescopic folding chuck, and a threaded pipe section is sleeved with a limiting piece and a limiting nut; the threaded sleeve is a pipe section with threads outside and hollow inside, the threaded end of the water inlet communicating pipe is sleeved with the threaded sleeve, the limiting piece is located between the limiting nut and a limiting protrusion inside the threaded sleeve, the limiting nut fixes the water inlet communicating pipe to the threaded sleeve by pressing the limiting piece, and a locking nut is arranged outside the threaded sleeve. The locking nut is located outside the pipe wall of the water supply pipe and clamps the pipe wall of the water supply pipe together with the telescopic folding clamping head through rotary locking. According to the utility model, the maintenance and replacement speed can be accelerated, the instrument installation cost is reduced, and the installation efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to a quick sampling interface for a water supply pipeline, belonging to the technical field of instrument equipment. Background Art

[0002] When installing water supply pipeline pressure and water quality monitoring instruments, it is necessary to make a sampling port on the pipeline to draw out the water in the pipeline and transport it to the instrument measurement position. The commonly used sampling methods are: (1) The steel pipe sampling device is generally welded to the water supply pipeline using an external thread short pipe, and then a hole is opened on the internal pipe of the short pipe to take water, and the water is transported to the instrument location through the connecting pipe; (2) Plastic pipes often use a special clamp as a sampling device, and the pipeline sampling port is connected to the clamp interface to achieve sampling.

[0003] The installation process using welding is complicated, costly, and has a long installation period; the clamp saddle method is prone to leakage when the external temperature changes. Therefore, a more complete sampling interface method needs to be designed. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a water supply pipeline sampling quick interface, reduce the instrument installation cost, and improve the installation efficiency and quality.

[0005] The technical solution adopted by the utility model is:

[0006] A quick interface for sampling a water supply pipeline comprises a water inlet connecting pipe and a threaded sleeve. One end of the water inlet connecting pipe is threaded, and the threaded end is connected to an instrument outside the water supply pipe, and the other end is connected to water in the water supply pipe. A limiting sleeve and a telescopic folding clamp are externally sleeved on the far threaded pipe section of the water inlet connecting pipe, and a limiting plate and a limiting nut are externally sleeved on the threaded pipe section of the water inlet connecting pipe. The telescopic folding clamp can be compressed or straightened due to the limit position as the water inlet connecting pipe rotates; the threaded sleeve is a round pipe with threads on the outside, a hollow inside and a limiting protrusion. The threaded end portion of the water inlet connecting pipe is sleeved in the threaded sleeve, the limiting plate is located between the limiting nut and the limiting protrusion inside the threaded sleeve, and the limiting nut fixes the water inlet connecting pipe on the threaded sleeve by pressing the limiting plate. A locking nut is provided on the outside of the threaded sleeve, and the locking nut is located outside the pipe wall of the water supply pipe. The locking nut is locked by rotation and clamps the pipe wall of the water supply pipe together with the telescopic folding clamp.

[0007] The outer diameter of the threaded sleeve is the same as the diameter of the sampling port on the water supply pipe, and is connected to the sampling port on the wall of the water supply pipe through threads.

[0008] A sealing device is provided on the inner and outer sides of the water supply pipe wall, which consists of a rubber ring and a sealing gasket. The rubber ring is located between the locking nut and the outer wall of the water supply pipe, and the sealing gasket is located between the telescopic folding clamp and the inner wall of the water supply pipe. By rotating the threaded sleeve, the telescopic folding clamp connecting rod moves toward the pipe wall to squeeze the sealing gasket, so that the sealing gasket is close to the sampling port.

[0009] The telescopic folding clamp includes an upper fixing plate, a lower fixing plate, and multiple groups of telescopic rods. The upper fixing plate and the lower fixing plate are located at the two ends of the limiting sleeve. The multiple groups of telescopic rods are distributed on the outer periphery of the limiting sleeve. The two ends of the telescopic rod are respectively movably connected with the square groove, and the square groove is fixed on the upper fixing plate and the lower fixing plate. Each group of telescopic rods includes two connecting rods, and the two connecting rods and the upper and lower ends of the connecting rods are fixed with rivets. When the water inlet connecting pipe is rotated in one direction, the upper fixing plate at the top moves toward the direction close to the threaded sleeve, and the connecting rod of the telescopic folding clamp is bent, and finally the lower end connecting rod protrudes and widens, and the limiting sleeve limits the further bending of the connecting rod of the telescopic folding clamp; when the water inlet connecting pipe is rotated in the opposite direction, the upper fixing plate at the top moves toward the direction away from the threaded sleeve, and the connecting rod of the telescopic folding clamp is gradually raised with the rotation of the water inlet connecting pipe, and finally presents a straightened state.

[0010] During installation, first rotate the threaded sleeve to make the telescopic folding clamp, the limiting sleeve and the sealing gasket enter the sampling port, and then rotate the water inlet connecting pipe. By rotating the water inlet connecting pipe, the connecting rod of the telescopic folding clamp is bent, and then the lower end connecting rod protrudes and becomes flat; then, by rotating the threaded sleeve, the telescopic folding clamp is slowly moved toward the wall of the water supply pipe, and the connecting rod at the lower end of the telescopic folding clamp squeezes the sealing gasket to deform it and make it fit tightly against the sampling port; finally, rotate the locking nut to squeeze the rubber ring, and clamp and fix the water supply pipe wall together with the telescopic folding clamp to improve the overall stability of the device.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The installation process is relatively fast and convenient. By rotating the water inlet connecting pipe and the threaded sleeve, the instrument installation structure can be installed and removed on the pipeline, which speeds up maintenance and replacement, reduces the instrument installation cost, and improves installation efficiency.

[0013] (2) The sampling port is double-sealed by a sealing gasket and a rubber ring, which improves the sealing performance of the sampling port of the water supply pipeline and enhances the reliability of the instrument, thereby ensuring the accuracy of its test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the components of the utility model;

[0016] Figure 3 This is an enlarged schematic diagram of the installation part of the utility model;

[0017] Among them, 1. locking nut, 2. rubber ring, 3. sampling port, 4. water supply pipe wall, 5. threaded sleeve, 6. limit nut, 7. limit plate, 8. sealing gasket, 9. telescopic folding clamp, 10. limit sleeve, 11. water inlet connecting pipe, 12. upper fixing plate, 13. lower fixing plate. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the embodiments and drawings.

[0019] Example

[0020] like Figure 1 , Figure 2 A quick interface for sampling a water supply pipeline comprises a water inlet connecting pipe 11 and a threaded sleeve 5. One end of the water inlet connecting pipe 11 is threaded, and the threaded end is connected to an external instrument, and the other end is connected to the water body in the water supply pipeline. The outer sleeve of the far threaded pipe section of the water inlet connecting pipe 11 is provided with a limiting sleeve 10 and a telescopic folding clamp 9. The outer sleeve of the threaded pipe section of the water inlet connecting pipe 11 is provided with a limiting sheet 7 and a limiting nut 6. The telescopic folding clamp 9 can be compressed or straightened due to the limit or widened due to the rotation of the water inlet connecting pipe 11; the threaded pipe section of the water inlet connecting pipe 11 is provided with a limiting sheet 7 and a limiting nut 6. The telescopic folding clamp 9 can be compressed or straightened due to the limit or widened due to the widening as the water inlet connecting pipe 11 rotates; the threaded pipe section of the water inlet connecting pipe 11 is provided with a limiting sheet 7 and a limiting nut 6. The ... The sleeve 5 is a round tube with a thread on the outside, a hollow inside and a limiting protrusion. The threaded end portion of the water inlet connecting pipe 11 is sleeved in the threaded sleeve 5. The limiting plate 7 is located between the limiting protrusion and the limiting nut inside the threaded sleeve 5. The limiting nut 6 fixes the water inlet connecting pipe 11 on the threaded sleeve 5 by pressing the limiting plate 7. A locking nut 1 is provided on the outside of the threaded sleeve 5. The locking nut 1 is located outside the water supply pipe wall 4. The locking nut 1 is clamped together with the telescopic folding clamp 9 by rotating and locking.

[0021] The outer diameter of the threaded sleeve 5 is the same as the diameter of the sampling port 3 on the water supply pipe, and is connected to the sampling port 3 on the wall of the water supply pipe through threads.

[0022] A sealing device is provided on the inner and outer sides of the water supply pipe wall 4, which consists of a rubber ring 2 and a sealing gasket 8. The rubber ring 2 is located between the locking nut 1 and the outer wall of the water supply pipe, and the sealing gasket 8 is located between the telescopic folding clamp 9 and the inner wall of the water supply pipe. By rotating the threaded sleeve 5, the connecting rod of the telescopic folding clamp 9 moves toward the pipe wall to squeeze the sealing gasket 8, so that the sealing gasket is close to the sampling port 3.

[0023] The telescopic folding clamp 9 includes an upper fixing plate 12, a lower fixing plate 13, and multiple groups of telescopic rods. The upper fixing plate 12 and the lower fixing plate 13 are located at the two ends of the limiting sleeve 10. The multiple groups of telescopic rods are distributed on the periphery of the limiting sleeve 10. The two ends of the telescopic rods are movably connected with the square grooves respectively, and the square grooves are fixed on the upper fixing plate and the lower fixing plate. Each group of telescopic rods includes two connecting rods, and the two connecting rods and the upper and lower ends of the connecting rods are fixed with rivets. When the water inlet connecting pipe 11 is rotated in one direction, the upper fixing plate 12 at the top moves toward the direction close to the threaded sleeve, and the connecting rod of the telescopic folding clamp 9 bends, and finally makes the lower end connecting rod protrude and widen; when the water inlet connecting pipe 11 is rotated in the opposite direction, the upper fixing plate 12 at the top moves toward the direction away from the threaded sleeve, and the connecting rod of the telescopic folding clamp 9 gradually rises with the rotation of the water inlet connecting pipe, and finally presents a straightened state.

[0024] By rotating the water inlet connecting pipe 11, the connecting rod of the telescopic folding clamp 9 is folded, and the lower end connecting rod protrudes and widens, preventing the installation device from falling out of the sampling port 3; the limiting sleeve 10 limits the further bending of the connecting rod of the telescopic folding clamp 9, so that the shape of the lower end of the connecting rod remains stable.

[0025] There is a sealing gasket 8 at the lower end of the telescopic folding clamp 9, and the connecting rod at the lower end of the telescopic folding clamp 9 is squeezed with the sealing gasket 8, so that the sealing gasket is close to the sampling port, thereby sealing the pipeline sampling port 3; the locking nut 1 is located on the outer wall of the water pipe, and a rubber ring 3 is arranged between the locking nut 1 and the sampling port 3. The rubber ring 3 seals the sampling port by rotating and locking the locking nut 1, and at the same time cooperates with the telescopic folding clamp 9 to clamp the pipe wall, thereby improving the overall stability of the device.

[0026] The dimensions of the telescopic folding clamp, limiting sleeve and sealing gasket in the straightened state should be able to extend into the sampling port, and the inner diameter of the rotating threaded sleeve should be larger than the outer diameter of the water inlet connecting pipe.

[0027] During installation, first rotate the threaded sleeve 5 to allow the telescopic folding clamp 9, the limiting sleeve 10 and the sealing gasket 8 to enter the sampling port 3, and then rotate the water inlet connecting pipe 11. By rotating the water inlet connecting pipe 11, the connecting rod of the telescopic folding clamp 9 is bent, and then the lower connecting rod is protruded and widened; then the threaded sleeve 5 is rotated to slowly move the telescopic folding clamp 9 toward the pipe wall, and the lower connecting rod squeezes the sealing gasket 8 to deform it and fit tightly against the sampling port 3; finally, rotate the locking nut 1 to squeeze the rubber ring 2, and together with the telescopic folding clamp 9, clamp and fix the pipe wall, thereby improving the overall stability of the device and sealing the sampling port 3. The final installation effect is as follows: Figure 3 shown.

[0028] During disassembly, first rotate the locking nut 1 to loosen the device, and then rotate the threaded sleeve 5. The telescopic folding clamp 9 slowly moves upward under the rotation of the threaded sleeve 5, and the sealing gasket 8 returns to its original state; then rotate the water inlet connecting pipe 11, and the connecting rod of the telescopic folding clamp 9 gradually rises and straightens as the water inlet connecting pipe 11 rotates; finally, rotate the threaded sleeve 5 to take out the telescopic folding clamp 9, the limiting sleeve 10 and the sampling port of the sealing gasket 8 from the inside.

[0029] The above is a detailed introduction of the present invention in combination with specific embodiments, and the protection scope of the present invention is not limited thereto.

Claims

1. A quick interface for sampling water supply pipeline, characterized in that: It comprises a water inlet connecting pipe and a threaded sleeve. One end of the water inlet connecting pipe is threaded, and the threaded end is connected to the instrument outside the water supply pipe, and the other end is connected to the water body in the water supply pipeline. The far threaded pipe section of the water inlet connecting pipe is externally sleeved with a limiting sleeve and a telescopic folding clamp, and the threaded pipe section of the water inlet connecting pipe is externally sleeved with a limiting plate and a limiting nut. The telescopic folding clamp can be compressed or straightened due to the limit or widened due to the rotation of the water inlet connecting pipe; the threaded sleeve is a round tube with threads on the outside, hollow inside and with limiting protrusions. The threaded end portion of the water inlet connecting pipe is sleeved in the threaded sleeve, and the limiting plate is located between the limiting nut and the limiting protrusion inside the threaded sleeve. The limiting nut fixes the water inlet connecting pipe on the threaded sleeve by pressing the limiting plate; a locking nut is provided on the outside of the threaded sleeve, and the locking nut is located outside the pipe wall of the water supply pipe. The locking nut is clamped together with the telescopic folding clamp by rotating and locking.

2. A water supply pipeline sampling quick interface according to claim 1, characterized in that: The outer diameter of the threaded sleeve is the same as the diameter of the sampling port on the water supply pipe, and is connected to the sampling port on the wall of the water supply pipe through threads.

3. A water supply pipeline sampling quick interface according to claim 1, characterized in that: A sealing device is provided on the inner and outer sides of the water supply pipe wall, which consists of a rubber ring and a sealing gasket. The rubber ring is located between the locking nut and the outer wall of the water supply pipe, and the sealing gasket is located between the telescopic folding clamp and the inner wall of the water supply pipe.

4. A water supply pipeline sampling quick connector according to claim 1, characterized in that: The telescopic folding clamp includes an upper fixing plate, a lower fixing plate, and multiple groups of telescopic rods. The upper fixing plate and the lower fixing plate are located at both ends of the limiting sleeve. The multiple groups of telescopic rods are distributed on the outer periphery of the limiting sleeve. The two ends of the telescopic rods are respectively movably connected to the square grooves, and the square grooves are fixed on the upper fixing plate and the lower fixing plate.

5. A water supply pipeline sampling quick connector according to claim 4, characterized in that: Each set of telescopic rods includes two connecting rods, and the two connecting rods and the upper and lower ends of the connecting rods are fixed with rivets for active connection.

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