Pipeline liquid detection structure capable of achieving backflow

Abstract

The utility model discloses a backflow pipeline liquid detection structure, which belongs to the technical field of liquid detection and comprises a connecting tee joint, two ends of the connecting tee joint are connected with pipelines, a liquid guide body is arranged above the connecting tee joint, a fixing sleeve is arranged above the liquid guide body, and a sensor is mounted above the fixing sleeve. A sealing assembly is arranged at the joint of the connecting tee joint and the pipeline, and a flow speed adjusting assembly is arranged at a liquid inlet of the connecting tee joint. The sealing assembly is arranged, the pipeline connecting position is arranged between the upper sealing cover and the lower sealing cover, the sealing gaskets are arranged in the sealing covers, and therefore the pipeline connecting position can be sealed, liquid leakage is prevented, the pressure gauge is installed above the upper sealing cover, a pointer in the pressure gauge can be driven to rotate when the pipeline leaks, and the sealing effect is good. Therefore, a worker can be prompted that the pipeline joint leaks.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid detection technical field, concretely relates to a pipeline liquid detection structure of backflow. BACKGROUND

[0002] Liquid detection device is widely used in various quantitative or qualitative environmental protection and industrial liquid detection field, for example, biochemical analysis field, water quality analysis field and the like for analyzing liquid sample.

[0003] Chinese patent publication No. CN108730661B discloses a pipeline liquid detection structure capable of backflow, which places a liquid guide head with a conical surface structure in the pipeline, and sets a liquid inlet on the water-facing end surface of the liquid guide head and a liquid outlet on the water-exposed end surface, so that the liquid guide head forms a trapping phenomenon on the liquid in the pipeline. When the pipeline is trapped, the liquid pressure will inevitably increase, so that the liquid can enter the detection chamber through the liquid inlet channel and be detected by the sensor, avoiding direct placement of the sensor in the pipeline, reducing the pressure on the sensor and improving its service life. After trapping, the cross-sectional area of the pipeline returns to the original cross-sectional area, the pressure decreases, and due to the pressure change phenomenon, the liquid in the detection chamber can automatically flow back to the pipeline through the liquid outlet channel, avoiding resource waste and the use of auxiliary equipment. Through the rapid change of pressure difference in the pipe body, the water sample in the detection chamber can be quickly updated to ensure detection accuracy.

[0004] The above disclosed patent has the following problems: the sealing performance of the connection between the tee joint and the pipeline is poor, and leakage is easy to occur; the device cannot control the flow rate of the liquid, and the practicality is poor. UTILITY MODEL CONTENT

[0005] To solve the problems in the above background art, the utility model provides a pipeline liquid detection structure capable of backflow, which has the characteristics of sealing the connection between the pipeline and the tee joint and facilitating the control of the flow rate of the liquid by the staff.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a pipeline liquid detection structure capable of backflow, comprising a tee joint, two ends of the tee joint being connected with pipelines, a liquid guide being arranged above the tee joint, a fixing sleeve being arranged above the liquid guide, a sensor being installed above the fixing sleeve, a sealing assembly being arranged at the connection between the tee joint and the pipeline, and a flow rate adjusting assembly being arranged at the liquid inlet of the tee joint.

[0007] Preferably, the sealing assembly comprises an upper sealing cover, a fixing bolt one, a lower sealing cover, a mounting plate, a fixing bolt two, a support rod, a pressure gauge and a sealing gasket, wherein the lower sealing cover is arranged below the pipeline connection of the three-way pipe, the support rod is arranged above the lower sealing cover, the mounting plate is arranged at one end of the support rod, the fixing bolt two is arranged on the surface of the mounting plate, the upper sealing cover is arranged above the lower sealing cover, the sealing gasket is arranged on the inner wall of the lower sealing cover and the upper sealing cover, the pressure gauge is arranged above the upper sealing cover, and the fixing bolt one is arranged on the two sides of the upper sealing cover.

[0008] Preferably, the lower side of the pressure gauge is provided with a threaded joint, and the pressure gauge is arranged above the upper sealing cover through the threaded joint.

[0009] Preferably, the flow rate adjusting assembly comprises an adjusting block, a hand wheel, an arc-shaped plate, a rotating rod, a baffle, a driven wheel, a driving wheel and a fixing block, wherein the adjusting block is arranged at the liquid inlet of the three-way pipe, the arc-shaped plate is welded in the adjusting block, the fixing block is arranged below the arc-shaped plate, the driven wheel is arranged in the middle of the fixing block, the baffle is connected to one end of the driven wheel, the driving wheel is arranged above the driven wheel, the rotating rod is arranged above the driving wheel, and the hand wheel is arranged on the top of the rotating rod.

[0010] Preferably, the middle of the fixing block is provided with a through hole, and one end of the driven wheel penetrates through the through hole and is connected with the baffle.

[0011] Preferably, the rotating rod above the driving wheel penetrates through the adjusting block and is connected with the hand wheel, and a sealing block is further arranged at the penetration position.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a sealing assembly is arranged, and the pipeline connection is arranged between the upper sealing cover and the lower sealing cover of the pipeline connection, the sealing gasket is arranged in the sealing cover, thereby can seal the pipeline connection, prevent the liquid from leaking, the pressure gauge is installed above the upper sealing cover, and the pipeline leakage can drive the pointer in the pressure gauge to rotate, thereby can prompt the staff pipeline connection leakage.

[0014] 2、The utility model discloses a flow rate adjusting assembly, and the adjusting block is arranged at the liquid inlet of the three-way pipe, and the staff hand wheel above the adjusting block can control the baffle in the adjusting block to rotate, and the baffle rotation can adjust the flow rate of the liquid in the pipeline, thereby can improve the practicability of the device. DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the sealing assembly schematic diagram of the utility model;

[0017] Figure 3 This is a cross-sectional view of the sealing component of this utility model;

[0018] Figure 4 This is a schematic diagram of the flow rate regulating component of this utility model;

[0019] Figure 5 This is a cross-sectional view of the flow rate regulating component of this utility model.

[0020] In the diagram: 1. Connecting tee; 2. Pipe; 3. Sealing assembly; 31. Upper sealing cap; 32. Fixing bolt one; 33. Lower sealing cap; 34. Mounting plate; 35. Fixing bolt two; 36. Support rod; 37. Pressure gauge; 38. Sealing gasket; 4. Flow rate regulating assembly; 41. Adjusting block; 42. Handwheel; 43. Arc plate; 44. Rotating rod; 45. Baffle; 46. Driven wheel; 47. Driven wheel; 48. Fixing block; 5. Liquid guide; 6. Fixing sleeve; 7. Sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-5 The present invention provides the following technical solution: a recirculating pipeline liquid detection structure, including a connecting tee 1, with pipes 2 connected to both ends of the connecting tee 1, a liquid guide 5 provided above the connecting tee 1, a fixing sleeve 6 provided above the liquid guide 5, a sensor 7 installed above the fixing sleeve 6, a sealing component 3 provided at the connection between the connecting tee 1 and the pipes 2, and a flow rate regulating component 4 provided at the liquid inlet of the connecting tee 1.

[0024] Specifically, the sealing assembly 3 includes an upper sealing cover 31, a first fixing bolt 32, a lower sealing cover 33, a mounting plate 34, a second fixing bolt 35, a support rod 36, a pressure gauge 37, and a sealing gasket 38. The lower sealing cover 33 is located below the connection between the tee 1 and the pipe 2. The support rod 36 is located below the lower sealing cover 33. The mounting plate 34 is located at one end of the support rod 36. The second fixing bolt 35 is located on the surface of the mounting plate 34. The upper sealing cover 31 is located above the lower sealing cover 33. The sealing gasket 38 is located on the inner walls of the lower sealing cover 33 and the upper sealing cover 31. The pressure gauge 37 is located above the upper sealing cover 31. The first fixing bolt 32 is located on both sides of the upper sealing cover 31.

[0025] By adopting the above technical solution, the bottom of the lower sealing cover 33 is provided with a support rod 36 and a mounting plate 34. The surface of the mounting plate 34 is provided with fixing bolts 35, which makes it convenient for the staff to fix the lower sealing cover 33 to the surface of the wall. The lower sealing cover 33 is placed below the connection of the pipe 2, and then the upper sealing cover 31 is connected to the lower sealing cover 33. Then, they are fixed together by fixing bolts 32. Since the inner walls of the upper sealing cover 31 and the lower sealing cover 33 are provided with sealing gaskets 38, the connection of the pipe 2 can be sealed. When the connection of the pipe 2 leaks, the air pressure inside the sealing cover will increase. The increase in air pressure will drive the pointer in the pressure gauge 37 to rotate, thereby prompting the staff that the connection of the pipe 2 has leaked.

[0026] Specifically, a threaded connector is provided below the pressure gauge 37, and the pressure gauge 37 is installed above the upper sealing cover 31 via the threaded connector.

[0027] By adopting the above technical solution, a threaded connector is provided below the pressure gauge 37, and the pressure gauge 37 is set above the upper sealing cover 31 through the threaded connector, which facilitates the disassembly and assembly of the pressure gauge 37 by the staff.

[0028] In this embodiment, the bottom of the lower sealing cover 33 is provided with a support rod 36 and a mounting plate 34. The surface of the mounting plate 34 is provided with fixing bolts 35, which makes it convenient for the staff to fix the lower sealing cover 33 to the surface of the wall. The lower sealing cover 33 is placed below the connection of the pipe 2, and then the upper sealing cover 31 is connected to the lower sealing cover 33. Then, they are fixed together by fixing bolts 32. Since the inner walls of the upper sealing cover 31 and the lower sealing cover 33 are provided with sealing gaskets 38, the connection of the pipe 2 can be sealed. When the connection of the pipe 2 leaks, the air pressure inside the sealing cover will increase. The increase in air pressure will drive the pointer in the pressure gauge 37 to rotate, thereby prompting the staff that the connection of the pipe 2 has leaked. Since the pressure gauge 37 is provided with a threaded joint below it, the pressure gauge 37 is set above the upper sealing cover 31 through the threaded joint, which makes it convenient for the staff to disassemble and assemble the pressure gauge 37.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that, specifically, the flow rate regulating component 4 includes an regulating block 41, a handwheel 42, an arc plate 43, a rotating rod 44, a baffle 45, a driven wheel 46, a driving wheel 47, and a fixed block 48. The regulating block 41 is provided at the inlet of the connecting tee 1. An arc plate 43 is welded inside the regulating block 41. The fixed block 48 is provided below the arc plate 43. The driven wheel 46 is provided in the middle of the fixed block 48. One end of the driven wheel 46 is connected to the baffle 45. The driving wheel 47 is provided above the driven wheel 46. The rotating rod 44 is provided above the driving wheel 47. The handwheel 42 is provided at the top of the rotating rod 44.

[0031] By adopting the above technical solution, an adjusting block 41 is provided at the liquid inlet of the connecting tee 1. An arc-shaped plate 43 is welded to the inner wall of the adjusting block 41. When it is necessary to adjust the flow rate of the liquid, the handwheel 42 is turned to drive the driving wheel 47 to rotate through the rotating rod 44. The rotation of the driving wheel 47 will drive the baffle 45 on one side of the arc-shaped plate 43 to rotate together through the driven wheel 46. The rotation of the baffle 45 can adjust the flow rate of the liquid.

[0032] Specifically, a through hole is provided in the middle of the fixed block 48, and one end of the driven wheel 46 passes through the through hole and is connected to the baffle 45.

[0033] By adopting the above technical solution, a through hole is provided in the middle of the fixed block 48, and one end of the driven wheel 46 passes through the through hole and is connected to the baffle 45, so that the rotation of the driven wheel 46 can drive the baffle 45 to rotate together.

[0034] Specifically, the lever 44 above the drive wheel 47 passes through the adjusting block 41 and connects to the handwheel 42, and a sealing block is also provided at the point of penetration.

[0035] By adopting the above technical solution, the rotating rod 44 above the drive wheel 47 passes through the adjusting block 41 and connects to the handwheel 42, so that the operator can control the rotation of the baffle 45. A sealing block is also provided at the penetration point to prevent leakage at the penetration point.

[0036] In this embodiment, the rotating rod 44 above the drive wheel 47 passes through the adjusting block 41 and connects to the handwheel 42, allowing the operator to control the rotation of the baffle 45. A sealing block is also provided at the penetration point to prevent leakage. An adjusting block 41 is provided at the liquid inlet of the connecting tee 1. An arc-shaped plate 43 is welded to the inner wall of the adjusting block 41. When it is necessary to adjust the flow rate of the liquid, rotating the handwheel 42 drives the drive wheel 47 to rotate through the rotating rod 44. The rotation of the drive wheel 47 will drive the baffle 45 on one side of the arc-shaped plate 43 to rotate together through the driven wheel 46. The rotation of the baffle 45 can adjust the flow rate of the liquid.

[0037] In this utility model, the pressure gauge 37 is a previously disclosed technology, and the selected model is Y-100B.

[0038] The structure and operating principle of the liquid guide 5, the fixing sleeve 6 and the sensor 7 of this utility model have been disclosed in a pipeline liquid detection structure capable of backflow, which is published in Chinese Patent Publication No. CN108730661B.

[0039] The working principle and usage process of this utility model: When in use, this utility model is used to seal the pipe 2 of a liquid detection structure for a reversible pipeline. During operation, it is necessary to seal the connection of the pipeline. The bottom of the lower sealing cover 33 is provided with a support rod 36 and a mounting plate 34. The surface of the mounting plate 34 is provided with fixing bolts 35, which makes it convenient for the operator to fix the lower sealing cover 33 to the surface of the wall. The lower sealing cover 33 is placed below the connection of the pipe 2, and then the upper sealing cover 31 is connected to the lower sealing cover 33. Then, they are fixed together by fixing bolts 32. Since the inner walls of the upper sealing cover 31 and the lower sealing cover 33 are provided with sealing gaskets 38, the connection of the pipe 2 can be sealed. When a leak occurs at the connection of the pipe 2, the air pressure inside the sealing cover will increase. The increase in air pressure will drive the pointer in the pressure gauge 37 to rotate, thereby indicating to the operator that a leak has occurred at the connection of the pipe 2. Since a threaded joint is provided below the pressure gauge 37, the pressure gauge 37 is set above the upper sealing cover 31 through the threaded joint, which makes it convenient for the operator to disassemble and assemble the pressure gauge 37.

[0040] In use, the flow rate control of the liquid detection structure for reversible pipelines requires adjustment of the liquid flow rate as needed. The rotating rod 44 above the drive wheel 47 penetrates the adjusting block 41 and connects to the handwheel 42, allowing the operator to control the rotation of the baffle 45. A sealing block is also provided at the penetration point to prevent leakage. An adjusting block 41 is provided at the liquid inlet of the connecting tee 1. An arc-shaped plate 43 is welded to the inner wall of the adjusting block 41. When the liquid flow rate needs to be adjusted, rotating the handwheel 42 drives the drive wheel 47 to rotate via the rotating rod 44. The rotation of the drive wheel 47 drives the baffle 45 on one side of the arc-shaped plate 43 to rotate via the driven wheel 46. The rotation of the baffle 45 adjusts the liquid flow rate.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reversible pipeline liquid detection structure, comprising a connecting tee (1), wherein pipes (2) are connected to both ends of the connecting tee (1), a liquid guide (5) is disposed above the connecting tee (1), a fixing sleeve (6) is disposed above the liquid guide (5), and a sensor (7) is mounted above the fixing sleeve (6), characterized in that: A sealing component (3) is provided at the connection between the connecting tee (1) and the pipe (2), and a flow rate regulating component (4) is provided at the liquid inlet of the connecting tee (1).

2. The reversible pipeline liquid detection structure according to claim 1, characterized in that: The sealing assembly (3) includes an upper sealing cover (31), a fixing bolt one (32), a lower sealing cover (33), a mounting plate (34), a fixing bolt two (35), a support rod (36), a pressure gauge (37), and a sealing gasket (38). The lower sealing cover (33) is provided below the connection between the tee (1) and the pipe (2). The support rod (36) is provided below the lower sealing cover (33). The mounting plate (34) is provided at one end of the support rod (36). The fixing bolt two (35) is provided on the surface of the mounting plate (34). The upper sealing cover (31) is provided above the lower sealing cover (33). The sealing gasket (38) is provided on the inner walls of the lower sealing cover (33) and the upper sealing cover (31). The pressure gauge (37) is provided above the upper sealing cover (31). The fixing bolt one (32) is provided on both sides of the upper sealing cover (31).

3. The reversible pipeline liquid detection structure according to claim 2, characterized in that: A threaded connector is provided below the pressure gauge (37), and the pressure gauge (37) is positioned above the upper sealing cover (31) via the threaded connector.

4. The reversible pipeline liquid detection structure according to claim 1, characterized in that: The flow rate regulating component (4) includes an regulating block (41), a handwheel (42), an arc plate (43), a rotating rod (44), a baffle (45), a driven wheel (46), a driving wheel (47), and a fixed block (48). The regulating block (41) is provided at the inlet of the connecting tee (1). An arc plate (43) is welded inside the regulating block (41). The fixed block (48) is provided below the arc plate (43). The driven wheel (46) is provided in the middle of the fixed block (48). One end of the driven wheel (46) is connected to the baffle (45). The driving wheel (47) is provided above the driven wheel (46). The rotating rod (44) is provided above the driving wheel (47). The handwheel (42) is provided at the top of the rotating rod (44).

5. The reversible pipeline liquid detection structure according to claim 4, characterized in that: The fixed block (48) has a through hole in the middle, and one end of the driven wheel (46) passes through the through hole and is connected to the baffle (45).

6. The reversible pipeline liquid detection structure according to claim 4, characterized in that: The rotating rod (44) above the drive wheel (47) passes through the adjusting block (41) and connects to the handwheel (42), and a sealing block is also provided at the penetration point.

Images