Automatic detection device for sealing performance of mining joint sleeve

Abstract

The utility model relates to the technical field of sealing performance detection, in particular to a mining joint sleeve sealing performance automatic detection device which comprises a mining joint detection table, a pressure cavity is fixedly installed on the upper side of the mining joint detection table, an upper connecting pipe is installed on the upper side of the pressure cavity in a communicated mode, and a mining joint is installed at the upper end of the upper connecting pipe in a threaded connection mode. The upper end of the mining joint is screwed with a plug, and the upper and lower sides of the mining joint are provided with sealing detection assemblies. The sealing detection assembly comprises a lantern ring, an inner rubber ring is fixedly mounted on the inner side of the lantern ring, an outer rubber ring is fixedly mounted on the outer side of the lantern ring, a mounting ring groove is formed in the inner side of the lantern ring, and a plurality of pressure sensors are fixedly mounted on the inner side of the mounting ring groove. According to the utility model, through the arrangement of the sealing detection assembly, the air leakage information is converted into the pressure signal to judge the air tightness performance of the mining joint, the detection is sensitive and accurate, and meanwhile, the air tightness performance of the mining joint under different working pressures is simulated by adjusting different pressure intensities on the inner side of the pressure cavity.

Description

Technical Field

[0001] This utility model relates to the field of sealing performance testing technology, and in particular to an automatic testing device for the sealing performance of mining joint sleeves. Background Technology

[0002] Mining joint sleeves are key components used in underground coal mining, tunneling, and other operations to connect different equipment or pipelines.

[0003] Traditional methods for testing the sealing performance of mining joint sleeves mainly rely on simple approaches such as manual pressure testing and visual inspection. These methods suffer from low accuracy, making it difficult to accurately assess the sealing performance of the joint sleeves. In practice, differences in operator experience and techniques can lead to inaccurate results, failing to meet the stringent sealing requirements of mines. Existing testing methods mostly only offer qualitative analysis and cannot accurately measure sealing performance parameters such as leakage rate and sealing pressure. This makes it difficult for mining companies to accurately evaluate and control the sealing performance of joint sleeves, increasing safety risks.

[0004] To address the shortcomings of the aforementioned technologies, we propose an automatic detection device for the sealing performance of mining joint sleeves. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automatic detection device for the sealing performance of mining joint sleeves.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic detection device for the sealing performance of a mining joint sleeve includes a mining joint detection platform. A pressure chamber is fixedly installed on the upper side of the detection platform, and an upper pipe is connected to the upper side of the pressure chamber. A mining joint is screwed onto the upper end of the upper pipe, and a plug is screwed onto the upper end of the mining joint. Sealing detection components are provided on both the upper and lower sides of the mining joint. The sealing detection components include a collar, an inner rubber ring is fixedly installed on the inner side of the collar, an outer rubber ring is fixedly installed on the outer side of the collar, and a mounting ring groove is formed on the inner side of the collar. A plurality of pressure sensors are fixedly installed on the inner side of the mounting ring groove, and a sealing film is fixedly adhered to the upper port of the mounting ring groove. The bottom of the sealing film is in contact with the pressure sensors.

[0008] Furthermore, a transmission cable is electrically connected to the side of the collar, and a controller is fixedly installed on the upper side of the mining connector testing platform, and the controller is electrically connected to the transmission cable.

[0009] Furthermore, an alarm light is fixedly installed on the upper side of the mining joint testing platform, and the alarm light is electrically connected to the controller.

[0010] Furthermore, the two collars are respectively fitted onto the outer walls of the upper pipe and the plug.

[0011] Furthermore, three bearing seats are fixedly installed on the side wall of the collar, a rotating rod is rotatably installed on the inner side of the bearing seat, a permanent magnet is fixedly installed at the end of the rotating rod, a ribbed rubber pad is bonded to the inner side of the permanent magnet, and the ribbed rubber pad is attached to the outer wall of the mining joint.

[0012] Furthermore, a pressure gauge is fixedly installed on the outer wall of the pressure chamber.

[0013] Furthermore, an air pump is fixedly installed on the upper side of the mining joint testing platform, an air injection pipe is installed between the output end of the air pump and the pressure chamber, and an air suction pipe is fixedly installed on the air pump's suction end.

[0014] Compared with related technologies, the automatic detection device for the sealing performance of mining joint sleeves proposed in this utility model has the following advantages:

[0015] In this invention, an automatic sealing detection device for mining joint sleeves is described. Through a sealing detection component, when detecting the sealing performance of the mining joint, an air pump pressurizes the pressure chamber. The sealing detection component is fitted onto the outer sides of the upper and lower interfaces of the mining joint. When air leakage occurs at the connection point of the mining joint, the gas pushes the sealing diaphragm in the sealing detection component, causing the diaphragm to deform inwards towards the mounting ring groove. Consequently, a pressure sensor located inside the mounting ring groove can accurately and sensitively detect the pressure signal. The controller determines the airtightness of the mining joint based on the pressure signal. The problem is detected, and the alarm light starts flashing, alerting the inspectors that the mining joint is leaking. This detection device can control different pressures inside the pressure chamber to test the airtightness of the mining joint under different pressure environments, simulating its airtightness performance under different working pressures. This invention, through its sealing detection component, converts leakage information into a pressure signal to determine the airtightness of the mining joint. The detection is sensitive and accurate. Furthermore, by adjusting the different pressures inside the pressure chamber, it simulates the airtightness performance of the mining joint under different working pressures, improving its applicability. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of an automatic detection device for the sealing performance of a mining joint sleeve proposed in this utility model. Figure 1 ;

[0017] Figure 2 A three-dimensional structural diagram of an automatic detection device for the sealing performance of a mining joint sleeve proposed in this utility model. Figure 2 ;

[0018] Figure 3 This is a three-dimensional disassembly diagram of an automatic detection device for the sealing performance of a mining joint sleeve proposed in this utility model;

[0019] Figure 4 A three-dimensional structural diagram of the sealing detection component;

[0020] Figure 5 This is a three-dimensional disassembled structural diagram of the sealing detection component.

[0021] In the diagram: 1. Mining joint testing platform; 2. Controller; 3. Alarm light; 4. Pressure chamber; 5. Upper pipe; 6. Mining joint; 7. Plug; 8. Sealing testing assembly; 81. Collar; 82. Shaft seat; 83. Rotating rod; 84. Permanent magnet; 85. Horizontal striped rubber pad; 86. Inner rubber ring; 87. Outer rubber ring; 88. Mounting ring groove; 89. Sealing membrane; 810. Pressure sensor; 811. Transmission cable; 9. Air pump; 10. Air injection pipe; 11. Air intake pipe; 12. Pressure gauge. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Reference Figure 1-5 An automatic detection device for the sealing performance of a mining joint sleeve includes a mining joint detection platform 1, a pressure chamber 4 fixedly installed on the upper side of the mining joint detection platform 1, an upper pipe 5 connected to the upper side of the pressure chamber 4, a mining joint 6 screwed to the upper end of the upper pipe 5, a plug 7 screwed to the upper end of the mining joint 6, and sealing detection components 8 provided on both the upper and lower sides of the mining joint 6.

[0024] With the above setup, when testing the mining connector 6, the mining connector 6 is first screwed onto the upper pipe 5, and then the plug 7 is screwed onto the upper end of the mining connector 6, so that the mining connector 6 and the inside of the pressure chamber 4 form a connected sealed space. At this time, by applying different air pressures inside the pressure chamber 4, the airtightness performance of the mining connector 6 under different working pressures can be simulated.

[0025] In this method, the sealing detection assembly 8 includes a collar 81, an inner rubber ring 86 fixedly installed on the inner side of the collar 81, an outer rubber ring 87 fixedly installed on the outer side of the collar 81, a mounting groove 88 is opened on the inner side of the collar 81, a plurality of pressure sensors 810 are fixedly installed on the inner side of the mounting groove 88, a sealing film 89 is fixedly bonded to the upper port of the mounting groove 88, the bottom of the sealing film 89 is in contact with the pressure sensor 810, a transmission cable 811 is electrically connected to the side of the collar 81, and a controller 2 is fixedly installed on the upper side of the mining joint detection platform 1, and the controller 2 is electrically connected to the transmission cable 811.

[0026] Through the above-described configuration, the inner rubber ring 86 ensures a seal between the inner wall of the collar 81 and the outer wall of the upper pipe 5 or plug 7, while also allowing the collar 81 to be stably fitted onto the outer wall of the upper pipe 5 or plug 7. The outer rubber ring 87 ensures a seal between the collar 81 and the upper and lower ports of the mining connector 6 to be tested. This allows the sealing film 89 installed inside the mounting groove 88 of the collar 81 to form a sealed space with the upper and lower ports of the mining connector 6. Consequently, when air leakage occurs at the connection between the upper and lower sides of the mining connector 6, the gas will act on the sealing film 89 immediately, enabling the pressure sensor 810 to detect it promptly.

[0027] In this method, an alarm light 3 is fixedly installed on the upper side of the mining joint testing platform 1, and the alarm light 3 is electrically connected to the controller 2.

[0028] With the above settings, when the pressure sensor 810 senses a pressure signal during testing, it indicates that there is an air leak at the connection of the mining connector 6. The controller 2 will then activate the alarm light 3 to alert the testing personnel.

[0029] In this method, two collars 81 are respectively fitted onto the outer walls of the upper pipe 5 and the plug 7.

[0030] By setting it up in the above manner, the two sets of sealing detection components 8 can respectively perform sealing tests on the upper and lower port connections of the mining connector 6.

[0031] In this method, an air pump 9 is fixedly installed on the upper side of the mining joint testing platform 1. An air injection pipe 10 is installed between the output end of the air pump 9 and the pressure chamber 4. An air suction pipe 11 is fixedly installed on the air extraction end of the air pump 9.

[0032] With the above configuration, the air pump 9 continuously inputs space into the pressure chamber 4, thereby increasing the pressure in the pressure chamber 4. By controlling the injection amount of the air pump 9, the air pressure value in the pressure chamber 4 can be precisely controlled.

[0033] In this method, three bearing seats 82 are fixedly installed on the side wall of the collar 81, a rotating rod 83 is rotatably installed inside the bearing seat 82, a permanent magnet 84 is fixedly installed at the end of the rotating rod 83, a ribbed rubber pad 85 is bonded to the inner side of the permanent magnet 84, and the ribbed rubber pad 85 is attached to the outer wall of the mining joint 6.

[0034] With the above-mentioned setup, the permanent magnet 84 uses magnetic attraction to make the ribbed rubber pad 85 fit tightly against the outer wall of the mining joint 6. The ribbed design of the rubber pad 85 gives the entire sealing detection assembly 8 anti-slip performance, further improving the stability of the sealing detection assembly 8 during installation and fixing.

[0035] In this method, a pressure gauge 12 is fixedly installed on the outer wall of the pressure chamber 4.

[0036] With the above settings, the barometer 12 can monitor the air pressure value in the pressure chamber 4 in real time.

[0037] The working principle of the automatic detection device for the sealing performance of mining joint sleeves provided by this utility model is as follows:

[0038] In use, the mining connector 6 is screwed onto the upper pipe 5, and then the plug 7 is screwed onto the upper end of the mining connector 6, forming a sealed space between the mining connector 6 and the pressure chamber 4. The sealing detection assembly 8, which is fitted onto the outside of the upper pipe 5, is then pushed upwards, causing the collar 81 to abut against the outside of the bottom port connection of the mining connector 6. The upper sealing detection assembly 8 is then fitted onto the outside of the plug 7 and pushed downwards, causing the collar 81 to abut against the outside of the upper port connection of the mining connector 6. Simultaneously, the gripping rods on both sealing detection assemblies 8 are pushed against the outer wall of the mining connector 6. Rotation causes the ribbed rubber pad 85 on the inner side of the permanent magnet 84 to adhere to the outer wall of the mining joint 6, thus fixing the sealing detection component 8 firmly. Subsequently, air is pumped into the pressure chamber 4 by the air pump 9. If there is an air leak at the joint, the gas will push the sealing diaphragm 89 in the sealing detection component 8 to deform. The deformation causes the pressure sensor 810 at the bottom of the sealing diaphragm 89 to sense the pressure change and transmit the signal to the controller 2. The controller 2 determines whether there is a problem with the airtightness of the mining joint 6 based on the received pressure signal and controls the alarm light 3 to light up to alert the inspection personnel.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for automatically detecting the tightness of a mine joint sleeve, characterized in that, Including mining joint detection platform (1), the mining joint detection platform (1) upper side fixed installation has pressure chamber (4), the pressure chamber (4) upper side communication installation has upper connector (5), the upper connector (5) upper end screw installation has mining joint (6), the mining joint (6) upper end screw has plug (7), the mining joint (6) upper and lower side are provided with sealing detection subassembly (8); The sealing detection subassembly (8) includes a collar (81), the inner rubber ring (86) is fixedly installed on the inner side of the collar (81), the outer rubber ring (87) is fixedly installed on the outer side of the collar (81), the installation ring groove (88) is formed in the inner side of the collar (81), a plurality of pressure sensors (810) are fixedly installed in the installation ring groove (88), and the sealing film (89) is fixedly bonded at the upper side port of the installation ring groove (88). The bottom of the sealing film (89) is in contact with the pressure sensor (810).

2. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, The side edge of the collar (81) is electrically connected with a transmission cable (811), the controller (2) is fixedly installed on the upper side of the mining joint detection platform (1), and the controller (2) is electrically connected with the transmission cable (811).

3. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, The alarm lamp (3) is fixedly installed on the upper side of the mining joint detection platform (1), and the alarm lamp (3) is electrically connected with the controller (2).

4. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, Two collars (81) are respectively sleeved on the outer walls of the upper connector (5) and the plug (7).

5. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, Three shaft seats (82) are fixedly installed on the side wall of the collar (81), the rotating shaft (83) is rotatably installed in the inner side of the shaft seat (82), the permanent magnet (84) is fixedly installed on the end of the rotating shaft (83), the cross-grain rubber pad (85) is bonded on the inner side of the permanent magnet (84), and the cross-grain rubber pad (85) is attached to the outer wall of the mining joint (6).

6. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, The air pressure gauge (12) is fixedly installed on the outer wall of the pressure chamber (4).

7. The automatic detection device for sealing property of a mine joint sleeve according to claim 1, characterized in that, The air pump (9) is fixedly installed on the upper side of the mining joint detection platform (1), the air injection pipe (10) is communicatedly installed between the output end of the air pump (9) and the pressure chamber (4), and the air suction pipe (11) is fixedly installed on the air pump (9).

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