Air pressure transmission density detection device for intelligent grouting system

Abstract

The utility model relates to the technical field of air pressure transmission density detection, and provides an air pressure transmission density detection device for an intelligent grouting system, which comprises an outer cavity flow guide pipe, a flow guide box fixedly sleeved on the outer surface of the top of the outer cavity flow guide pipe, and an overflow port arranged at the top of the outer cavity flow guide pipe; slurry to be detected is conveyed into the outer cavity flow guide pipe from the slurry inlet pipe and flows towards the top through the outer cavity flow guide pipe, an overflow opening is formed in the top of the outer cavity flow guide pipe, the slurry to be detected flows out of the slurry outlet pipe through the overflow opening, and the top of the hollow inner pipe is connected with a pressure sensor through a connecting air pipe. When slurry to be measured flows through the lower end of the hollow inner pipe, pressure is generated on the bottom of the hollow inner pipe, so that the pressure measured by the pressure sensor is liquid column pressure of the slurry to be measured on the bottom of the hollow inner pipe, the height from the bottom of the hollow inner pipe to the top of the outer cavity flow guide pipe is unchanged, and the density of the slurry to be measured is in linear relation with the pressure measured by the pressure sensor. The density value of the to-be-measured slurry can be obtained through calculation.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure density detection, in particular to an air pressure density detection device for an intelligent grouting system. Background Art

[0002] Air pressure density detection devices usually refer to devices that can detect and measure the density or relative density of air under certain conditions. Such devices often contain precise pressure sensors, temperature sensors and volume measurement elements.

[0003] However, in the prior art, traditional pressure sensors are usually in direct contact with the slurry being detected. Cement stones are easily generated on the contact surface after long-term use, which makes the pressure sensor easily damaged. The pressure value measured by the pressure sensor is relatively sensitive. Cement stones or deformation on the contact surface will cause inaccurate data collection, greatly reducing the accuracy of the detection. Moreover, the traditional pressure sensor is installed at the bottom of the outer cavity guide tube, which is not convenient for cleaning. The mud and sand attached to the inner wall of the outer cavity guide tube will also affect the detected data value if it is not cleaned for a long time. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the traditional pressure sensor is usually in direct contact with the detected slurry, cement stones are easily generated on the contact surface after long-term use, and the pressure sensor is easily damaged. The pressure value measured by the pressure sensor is relatively sensitive. The presence of cement stones or deformation on the contact surface will cause inaccurate collected data, greatly reducing the accuracy of the detection. In addition, the traditional pressure sensor is installed at the bottom of the outer cavity guide tube, which is not convenient for cleaning. If the mud and sand attached to the inner wall of the outer cavity guide tube is not cleaned for a long time, it will also affect the detected data value.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air pressure density detection device for an intelligent grouting system, comprising: an outer cavity flow guide pipe, a flow guide box is fixedly sleeved on the top outer surface of the outer cavity flow guide pipe, an overflow port is opened on the top of the outer cavity flow guide pipe, and further comprising:

[0006] A hollow inner tube is fixedly installed at the center of the flow guide box, and the hollow inner tube passes through the flow guide box and is fixedly embedded in the inner cavity of the flow guide tube of the outer cavity;

[0007] A U-shaped frame is fixedly installed at the top center of the guide box, and a pressure sensor is fixedly installed at the bottom of the U-shaped frame;

[0008] A connecting air pipe is arranged at the top of the hollow inner tube, one end of the connecting air pipe is provided with a three-way pipe, and one end of the pressure sensor is fixedly connected to the top of the three-way pipe;

[0009] The air supply pipe is fixedly connected to one side of the three-way pipe.

[0010] Preferably, a slurry inlet pipe is provided on one side of the outer cavity flow guide pipe close to the lower end, a one-way valve is provided on the outer surface of the slurry inlet pipe, and a slurry outlet pipe is provided on the lower end of one side of the flow guide box.

[0011] The technical effect of adopting the above further solution is that the slurry to be tested enters the outer cavity guide pipe through the slurry inlet pipe and then flows out through the slurry outlet pipe, and the one-way valve can prevent the slurry from flowing back.

[0012] Preferably, a plurality of mounting blocks are disposed inside the outer cavity flow guide tube, and the plurality of mounting blocks are evenly divided into two groups.

[0013] The technical effect of adopting the above further solution is that the mounting block can more conveniently mount the guide rod and the reciprocating screw rod.

[0014] Preferably, guide rods are fixedly mounted on opposite surfaces of one group of the mounting blocks, and reciprocating screw rods are movably embedded on opposite surfaces of another group of the mounting blocks.

[0015] The technical effect of adopting the above further solution is: the guide rod can improve the stability of scraper ring 1 and scraper ring 2, and the reciprocating screw drives scraper ring 1 and scraper ring 2 to move back and forth, thereby improving the cleaning efficiency.

[0016] Preferably, a connecting shaft is fixedly mounted on the top of the reciprocating screw rod, and the connecting shaft passes through the mounting block.

[0017] The technical effect of adopting the above further solution is that the connecting shaft can better drive the reciprocating screw rod to rotate.

[0018] Preferably, the outer surfaces of the guide rod and the reciprocating screw rod are movably sleeved with connecting plates, and the opposite back surfaces of the two connecting plates are fixedly mounted with a scraper ring 1, and the scraper ring 1 fits with the inner wall of the outer cavity guide tube.

[0019] The technical effect of adopting the above further solution is that the scraper ring 1 can clean the inside of the outer cavity guide tube to prevent excessive sediment from affecting the detected data.

[0020] Preferably, a second scraper ring is fixedly installed on the opposite surfaces of the two connecting plates, the second scraper ring fits with the outer surface of the hollow inner tube, and the second scraper ring is movably sleeved on the outer surface of the hollow inner tube.

[0021] The technical effect of adopting the above further solution is that the scraper ring 2 can clean the outer surface of the hollow inner tube to prevent it from being deformed by excessively thick sediment, thereby causing inaccurate collected data.

[0022] Preferably, a driving motor is provided on the outer surface of the guide box, and an output end of the driving motor is connected to a connecting shaft.

[0023] The technical effect of adopting the above further solution is that the drive motor can better drive the connecting shaft and the reciprocating screw to rotate.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] 1. In the utility model, the slurry to be tested is transported from the slurry inlet pipe to the inside of the outer cavity guide pipe, and the slurry flows to the top through the outer cavity guide pipe. An overflow port is provided at the top of the outer cavity guide pipe, and the slurry to be tested flows out from the slurry outlet pipe through the overflow port. A hollow inner tube is embedded in the outer cavity guide pipe, and a pressure sensor is connected to the top of the hollow inner tube through a connecting air pipe. When the slurry to be tested flows through the lower end of the hollow inner tube, pressure is generated on the bottom of the hollow inner tube, so the pressure measured by the pressure sensor is the liquid column pressure of the slurry to be tested on the bottom of the hollow inner tube. The pressure from the bottom of the hollow inner tube to the outer cavity guide pipe is the pressure of the liquid column on the bottom of the hollow inner tube. The height of the top of the flow tube remains unchanged. When the density of the slurry to be measured changes, it is in a linear relationship with the pressure measured by the pressure sensor. The density value of the slurry to be measured can be obtained by calculation. A trace amount of gas can be injected into the inside of the hollow inner tube through the air supply pipe. The air supply is to prevent the slurry to be measured from causing air compression on the bottom of the hollow inner tube, resulting in changes in the height of the slurry column to be measured, thereby causing the hidden danger of inaccurate density measurement. The pressure sensor is not in direct contact with the slurry, which can make the pressure gauge less likely to be damaged, greatly improving the stability of the equipment. The hollow inner tube has a buffering effect, making the collected data more stable.

[0026] 2. In the utility model, starting the driving motor can drive the connecting shaft to rotate, and the connecting shaft is connected to the top end of the reciprocating screw rod, so the reciprocating screw rod also rotates therewith, and a connecting plate is movably sleeved on the outer surface of the reciprocating screw rod, and a scraper ring 1 is fixedly installed on the outer side of the connecting plate, and a scraper ring 2 is fixedly installed on the inner side, and another connecting plate is movably sleeved on the outer surface of the guide rod, and the two connecting plates are connected by scraper rings 1 and 2, so scraper rings 1 and 2 can move up and down simultaneously with the connecting plate, and scraper ring 1 fits in with the inner wall of the outer cavity guide tube, so as to better clean up the attached mud and sand, and scraper ring 2 is movably sleeved on the outer surface of the hollow inner tube, so as to clean the outer surface of the hollow inner tube and prevent the deformation caused by excessively thick mud and sand, thereby causing inaccurate collected data. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the air pressure density detection device for the intelligent grouting system proposed by the utility model;

[0028] Figure 2 This is a side view structural diagram of the air pressure density detection device for the intelligent grouting system proposed by the utility model;

[0029] Figure 3 This is a cross-sectional structural diagram of an air pressure density detection device for an intelligent grouting system proposed by the utility model;

[0030] Figure 4 The utility model provides a partial cross-sectional structural schematic diagram of an air pressure density detection device for an intelligent grouting system.

[0031] Legend:

[0032] 1. Outer cavity guide pipe; 101. Slurry inlet pipe; 102. One-way valve; 103. Guide box; 104. U-shaped frame; 105. Pressure sensor; 106. Three-way pipe; 107. Connecting air pipe; 108. Hollow inner pipe; 109. Driving motor; 110. Slurry outlet pipe; 111. Air supply pipe; 112. Overflow port; 113. Guide rod; 114. Mounting block; 115. Reciprocating screw rod; 116. Connecting shaft; 117. Scraper ring 1; 118. Connecting plate; 119. Scraper ring 2. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0035] Embodiment 1, as Figure 1-4 As shown, the utility model provides an air pressure density detection device for an intelligent grouting system, comprising: an outer cavity flow guide tube 1, a flow guide box 103 is fixedly sleeved on the top outer surface of the outer cavity flow guide tube 1, an overflow port 112 is opened on the top of the outer cavity flow guide tube 1, and further comprising: a hollow inner tube 108, fixedly installed at the center of the flow guide box 103, the hollow inner tube 108 penetrates the flow guide box 103 and is fixedly embedded in the inner cavity of the outer cavity flow guide tube 1; a U-shaped frame 104, fixedly installed at the top center of the flow guide box 103, the U-shaped frame 10 4 is fixedly installed with a pressure sensor 105; an air pipe 107 is connected, which is arranged on the top of the hollow inner tube 108, and a three-way pipe 106 is arranged at one end of the air pipe 107, and one end of the pressure sensor 105 is fixedly connected to the top of the three-way pipe 106; an air supply pipe 111 is fixedly connected to one side of the three-way pipe 106; a slurry inlet pipe 101 is arranged on one side of the outer cavity flow guide pipe 1 close to the lower end, and a one-way valve 102 is arranged on the outer surface of the slurry inlet pipe 101, and a slurry outlet pipe 110 is arranged at the lower end of one side of the flow guide box 103.

[0036] In this embodiment, the slurry to be tested or other liquids and mixtures are transported from the slurry inlet pipe 101 to the interior of the outer cavity flow guide pipe 1, and the slurry flows to the top through the outer cavity flow guide pipe 1. An overflow port 112 is provided at the top of the outer cavity flow guide pipe 1. The slurry to be tested flows out from the slurry outlet pipe 110 through the overflow port 112. A hollow inner tube 108 is embedded in the interior of the outer cavity flow guide pipe 1. The top of the hollow inner tube 108 is connected to a pressure sensor 105 through a connecting air pipe 107. When the slurry to be tested flows through the lower end of the hollow inner tube 108, pressure is generated on its bottom. Therefore, the pressure measured by the pressure sensor 105 is the liquid column pressure of the slurry to be tested on the bottom of the hollow inner tube 108. The height from the bottom of the hollow inner tube 108 to the top of the outer cavity flow guide tube 1 remains unchanged. When the density of the slurry to be measured changes, it is in a linear relationship with the pressure measured by the pressure sensor 105. The density value of the slurry to be measured can be obtained by calculation. A trace amount of gas can be injected into the interior of the hollow inner tube 108 through the air supply pipe 111. The air supply is to prevent the slurry to be measured from causing air compression on the bottom of the hollow inner tube 108, resulting in a change in the height of the slurry column to be measured, thereby causing a hidden danger of inaccurate density measurement. The pressure sensor 105 is not in direct contact with the slurry, which can make the pressure gauge less likely to be damaged, greatly improving the stability of the equipment. The hollow inner tube 108 has a buffering effect, making the collected data more stable.

[0037] Embodiment 2, as Figure 1-4 As shown, a plurality of mounting blocks 114 are arranged inside the external cavity guide tube 1, and the plurality of mounting blocks 114 are evenly divided into two groups; a guide rod 113 is fixedly mounted on the opposite surface of one group of mounting blocks 114, and a reciprocating screw rod 115 is movably embedded on the opposite surface of the other group of mounting blocks 114; a connecting shaft 116 is fixedly mounted on the top of the reciprocating screw rod 115, and the connecting shaft 116 passes through the mounting blocks 114; the outer surfaces of the guide rod 113 and the reciprocating screw rod 115 are movably sleeved with a connecting plate 11 8. Scraper ring 117 is fixedly installed on the opposite sides of the two connecting plates 118, and the scraper ring 117 is in contact with the inner wall of the outer cavity guide tube 1; scraper ring 2 119 is fixedly installed on the opposite sides of the two connecting plates 118, and the scraper ring 2 119 is in contact with the outer surface of the hollow inner tube 108, and the scraper ring 2 119 is movably sleeved on the outer surface of the hollow inner tube 108; a drive motor 109 is provided on the outer surface of the guide box 103, and the output end of the drive motor 109 is connected to the connecting shaft 116.

[0038] In this embodiment, starting the drive motor 109 can drive the connecting shaft 116 to rotate, and the connecting shaft 116 is connected to the top of the reciprocating screw rod 115, so the reciprocating screw rod 115 also rotates accordingly. The outer surface of the reciprocating screw rod 115 is movably sleeved with a connecting plate 118, and a scraper ring 117 is fixedly installed on the outer side of the connecting plate 118, and a scraper ring 2 119 is fixedly installed on the inner side. Another connecting plate 118 is movably sleeved on the outer surface of the guide rod 113, and the two connecting plates 118 are connected by scraper ring 117 and scraper ring 2 119, so scraper ring 117 and scraper ring 2 119 can move up and down simultaneously with the connecting plate 118, and scraper ring 117 fits with the inner wall of the outer cavity guide tube 1, which can better clean up the attached mud and sand, and scraper ring 2 119 is movably sleeved on the outer surface of the hollow inner tube 108, which can clean the outer surface of the hollow inner tube 108 to prevent the attachment of too thick mud and sand from causing its deformation, thereby causing inaccurate collected data.

[0039] Working principle: When in use, the slurry to be tested or other liquids and mixtures are transported from the slurry inlet pipe 101 to the inside of the outer cavity guide pipe 1, and the slurry flows to the top through the outer cavity guide pipe 1. An overflow port 112 is provided at the top of the outer cavity guide pipe 1. The slurry to be tested flows out from the slurry outlet pipe 110 through the overflow port 112. A hollow inner tube 108 is embedded in the outer cavity guide pipe 1. The top of the hollow inner tube 108 is connected to a pressure sensor 105 through a connecting air pipe 107. When the slurry to be tested flows through the lower end of the hollow inner tube 108, pressure is generated on the bottom of the hollow inner tube 108, thereby the pressure sensor The pressure measured by the pressure sensor 105 is the liquid column pressure of the slurry to be tested on the bottom of the hollow inner tube 108. The height from the bottom of the hollow inner tube 108 to the top of the outer cavity flow guide tube 1 remains unchanged. When the density of the slurry to be tested changes, it is in a linear relationship with the pressure measured by the pressure sensor 105. The density value of the slurry to be tested can be obtained by calculation. A trace amount of gas can be injected into the hollow inner tube 108 through the air supply pipe 111. The air supply is to prevent the slurry to be tested from compressing the air on the bottom of the hollow inner tube 108, causing the height of the slurry column to be tested to change, thereby causing the hidden danger of inaccurate density measurement. The pressure sensor The pressure gauge 105 is not in direct contact with the slurry, which can make the pressure gauge less likely to be damaged and greatly improve the stability of the equipment. The hollow inner tube 108 has a buffering effect, making the collected data more stable. Starting the drive motor 109 can drive the connecting shaft 116 to rotate. The connecting shaft 116 is connected to the top of the reciprocating screw rod 115, so the reciprocating screw rod 115 also rotates accordingly. The outer surface of the reciprocating screw rod 115 is movably sleeved with a connecting plate 118. The outer side of the connecting plate 118 is fixedly installed with a scraper ring 117, and the inner side is fixedly installed with a scraper ring 2 119. Another connecting plate 11 The movably sleeve is arranged on the outer surface of the guide rod 113, and the two connecting plates 118 are connected by the scraper ring 117 and the scraper ring 119, so the scraper ring 117 and the scraper ring 119 can move up and down simultaneously with the connecting plate 118, and the scraper ring 117 fits with the inner wall of the outer cavity flow guide tube 1, and can better clean and drop the attached mud and sand, and the scraper ring 119 is movably sleeved on the outer surface of the hollow inner tube 108, and can clean the outer surface of the hollow inner tube 108 to prevent the deformation caused by the excessively thick mud and sand, thereby causing inaccurate collected data.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. Air pressure density detection device for intelligent grouting system, including: An external cavity flow guide tube (1), wherein a flow guide box (103) is fixedly sleeved on the top outer surface of the external cavity flow guide tube (1), and an overflow port (112) is opened on the top of the external cavity flow guide tube (1), characterized in that it also includes: A hollow inner tube (108) is fixedly mounted at the center of the flow guide box (103); the hollow inner tube (108) penetrates the flow guide box (103) and is fixedly embedded in the inner cavity of the outer cavity flow guide tube (1); A U-shaped frame (104) is fixedly mounted at the top center of the flow guide box (103), and a pressure sensor (105) is fixedly mounted at the bottom of the U-shaped frame (104); A connecting air pipe (107) is arranged at the top of the hollow inner tube (108), one end of the connecting air pipe (107) is provided with a three-way pipe (106), and one end of the pressure sensor (105) is fixedly connected to the top of the three-way pipe (106); The air supply pipe (111) is fixedly connected to one side of the three-way pipe (106).

2. The air pressure density detection device for the intelligent grouting system according to claim 1 is characterized in that: A slurry inlet pipe (101) is provided on one side of the outer cavity flow guide pipe (1) close to the lower end, a one-way valve (102) is provided on the outer surface of the slurry inlet pipe (101), and a slurry outlet pipe (110) is provided on the lower end of one side of the flow guide box (103).

3. The air pressure density detection device for the intelligent grouting system according to claim 1 is characterized in that: A plurality of mounting blocks (114) are arranged inside the outer cavity flow guide tube (1), and the plurality of mounting blocks (114) are evenly divided into two groups.

4. The air pressure density detection device for the intelligent grouting system according to claim 3 is characterized in that: A guide rod (113) is fixedly mounted on the opposite surfaces of one group of the mounting blocks (114), and a reciprocating screw rod (115) is movably embedded on the opposite surfaces of another group of the mounting blocks (114).

5. The air pressure density detection device for the intelligent grouting system according to claim 4 is characterized in that: A connecting shaft (116) is fixedly mounted on the top of the reciprocating screw rod (115), and the connecting shaft (116) passes through the mounting block (114).

6. The air pressure density detection device for the intelligent grouting system according to claim 4 is characterized in that: The outer surfaces of the guide rod (113) and the reciprocating screw rod (115) are movably sleeved with a connecting plate (118), and the opposite back surfaces of the two connecting plates (118) are fixedly mounted with a scraper ring (117), and the scraper ring (117) is in contact with the inner wall of the outer cavity guide tube (1).

7. The air pressure density detection device for the intelligent grouting system according to claim 6 is characterized in that: A second scraper ring (119) is fixedly mounted on the opposite surfaces of the two connecting plates (118), the second scraper ring (119) is in contact with the outer surface of the hollow inner tube (108), and the second scraper ring (119) is movably sleeved on the outer surface of the hollow inner tube (108).

8. The air pressure density detection device for the intelligent grouting system according to claim 1 is characterized in that: A driving motor (109) is disposed on the outer surface of the flow guide box (103), and an output end of the driving motor (109) is connected to a connecting shaft (116).

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