Coal pillar pressure detector for mine pressure analysis

Abstract

The utility model discloses a coal pillar pressure detector for mine pressure analysis, which comprises a support rod and a positioning rod fixedly mounted at the upper end of the support rod, a fixing part is fixedly mounted at the upper end of the positioning rod, a processor and an alarm are fixedly mounted on the outer side of the fixing part, a mounting part is fixedly mounted on the outer side of the fixing part, and the mounting part is fixedly mounted on the lower end of the support rod. And meanwhile, a pressure sensor is clamped and mounted in the mounting piece. According to the coal pillar pressure detector for mine pressure analysis, a rotating rod can rotate, and a lifting rod and a transverse rod can move upwards, so that the heights of a moving cylinder and a roller assembly are changed, and the use convenience of the detector is improved; according to the detector, an alarm can be quickly given out when a coal pillar cracks or collapses, the detection accuracy of the detector is effectively improved, the lifting process of the detector can be completed by controlling a gap between a sealing piece and an air outlet groove, a moving cylinder and a roller assembly can move downwards by pushing the sealing piece to be separated from the air outlet groove, and the detection accuracy of the detector is improved. And the convenient analysis of the detector in use is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine pressure detection, specifically to a coal pillar pressure detector for mine pressure analysis. BACKGROUND

[0002] In the process of coal mining operation, there will be places not to be mined as coal pillars for foundation support, and the stability of the coal pillar support needs to be ensured in the process of support, so the support pressure of the coal pillar needs to be detected by a pressure detection device, but the existing pressure detection device still has certain use defects in the process of use, the existing test device can only provide axial, lateral or three-way stress loading, and there are deficiencies in real simulation of deep buried mine waterproof coal pillar mechanical environment, water-rock interaction and nondestructive testing of waterproof coal pillar;

[0003] The patent with the patent authorization announcement number CN220154140U discloses a deep buried mine waterproof coal pillar bearing performance deterioration pretest device, which can apply stable lateral water pressure to the waterproof coal pillar sample under axial loading conditions, considers water-rock interaction, and can truly simulate the deep buried mine waterproof coal pillar mechanical environment. An ultrasonic detection system is adopted, which can monitor the damage evolution process of the coal rock sample under the action of lateral water pressure and axial load in real time, obtain the precursor information of the bearing performance deterioration of the waterproof coal pillar sample, use the precursor information as a sign before the deep buried mine waterproof coal pillar is damaged, and lay a foundation for the advanced prediction of the stability of the on-site waterproof coal pillar;

[0004] In the above-mentioned disclosed patent, the device in the patent solves the problems mentioned above, but the device in the patent still has the following problems: in the process of use of the device, the electro-hydraulic servo pressure testing machine needs to be used for work, and many structures need to be used for work in the process of work of the electro-hydraulic servo pressure testing machine, and many structures need to be positioned and installed for use, and the overall structure of the device is too large, which easily leads to many inconveniences in the process of installation and use of the device.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original detector structure. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a coal pillar pressure detector for mine pressure analysis, to solve the problems that many structures need to be used for work in the process of work of the electro-hydraulic servo pressure testing machine, and many structures need to be positioned and installed for use, and the overall structure of the device is too large, which easily leads to many inconveniences in the process of installation and use of the device.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a coal pillar pressure detector for mine pressure analysis, fixed installation of positioning rod is arranged on the upper end of support rod,

[0008] The upper end of the positioning rod is fixedly installed with a fixing part, and the outer side of the fixing part is fixedly installed with a processor and an alarm, and the outer side of the fixing part is fixedly installed with a mounting part, and the inside of the mounting part is clampedly installed with a pressure sensor;

[0009] The upper end of the support rod is provided with a height adjusting structure and a pressure detecting structure.

[0010] Preferably, the adjusting structure comprises a rotating rod, and the rotating rod is rotatably installed at the upper end of the support rod, and the outer side of the rotating rod is fixedly installed with a rotating disc assembly.

[0011] Preferably, the outer side of the rotating rod is threadedly installed with a lifting rod, and the upper end of the lifting rod is fixedly installed with a transverse rod, the lower end of the transverse rod is fixedly installed with a lifting cylinder, and the lifting cylinder is slidably connected with the fixing part.

[0012] Preferably, the adjusting structure further comprises a fixed block, and the fixed block is fixedly installed in the inside of the fixing part, and the inside of the fixed block is slidably installed with a sliding rod, the outer side of the fixed block is sleeved with a supporting spring, one end of the sliding rod away from the fixed block is fixedly installed with a sealing part, and the inside of the fixing part is provided with an air outlet groove, and the air outlet groove is sealingly connected with the sealing part.

[0013] Preferably, the detecting structure comprises a reset spring and a pressing block, and the pressing block is slidably installed in the inside of the mounting part, and the reset spring is arranged in the inside of the mounting part, and the reset spring is located between the pressing block and the pressure sensor.

[0014] Preferably, the detecting structure further comprises a gas conveying cylinder, and the gas conveying cylinder is fixedly installed on the outer side of the transverse rod, and the inside of the gas conveying cylinder is slidably installed with a moving cylinder, and one end of the moving cylinder away from the gas conveying cylinder is fixedly installed with a roller assembly.

[0015] Preferably, the inside of the gas conveying cylinder is provided with a strong spring, and the gas conveying cylinder, the moving cylinder and the roller assembly are equidistantly arranged on the outer side of the transverse rod.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. Through the rotation of the rotating disc assembly, the rotating rod can be rotated, and the lifting rod and the transverse rod can be moved upwards, so that the height of the moving cylinder and the roller assembly is changed, and the convenience of using the detector is improved.

[0018] 2. By the close contact of the roller assembly with the outer side of the coal column, the coal column can be quickly alarmed when cracks or collapse occurs, and the accuracy of the detector is effectively improved;

[0019] 3. Further, by controlling the gap between the sealing member and the air outlet groove, the lifting process of the detector can be completed, and by separating the sealing member from the air outlet groove, the moving cylinder and the roller assembly can be lowered, so that the detector is easy to use. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a three-dimensional structure schematic diagram of the utility model;

[0021] Fig. 2 is a three-dimensional structure schematic diagram of the utility model mounting piece;

[0022] Fig. 3 is a three-dimensional structure schematic diagram of the utility model transverse rod;

[0023] Fig. 4 is a three-dimensional structure schematic diagram of the utility model sealing member;

[0024] Fig. 5 is a three-dimensional structure schematic diagram of the utility model fixed block;

[0025] Fig. 6 is a three-dimensional structure schematic diagram of the utility model extrusion block.

[0026] In the figure: 1, support rod; 2, positioning rod; 3, fixed piece; 4, processor; 5, alarm; 6, mounting piece; 7, pressure sensor; 8, rotating rod; 9, lifting rod; 10, transverse rod; 11, rotating disc assembly; 12, sliding rod; 13, support spring; 14, sealing member; 15, air outlet groove; 16, return spring; 17, gas cylinder; 18, moving cylinder; 19, roller assembly; 20, strong spring; 21, fixed block; 22, extrusion block; 23, lifting cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] In specific embodiments, as shown in Figs. 1-2 , the basic use process of the pressure detector is disclosed;

[0029] The support rod 1 and the positioning rod 2 fixedly installed on the upper end of the support rod 1; the upper end of the positioning rod 2 is fixedly installed with a fixing piece 3, and the outer side of the fixing piece 3 is fixedly installed with a processor 4 and an alarm 5, and the outer side of the fixing piece 3 is fixedly installed with a mounting piece 6, and the inside of the mounting piece 6 is clampedly installed with a pressure sensor 7.

[0030] In use of the coal pillar pressure detector for mine pressure analysis, the detector needs to be installed on the outside of each injection, and in the process of installing the detector, an installation hole needs to be formed on the outside of each injection, and the positioning rod 2 is installed in the inside of the coal pillar installation hole, after the detector is installed, the height of the detector can be adjusted to detect the internal pressure of the coal pillar, and in the detection process, the roller assembly 19 needs to be in close contact with the coal pillar, so as to complete the use process of the detector.

[0031] In one of the specific embodiments, as shown in Figs. 1-6 the process of adjusting the height of the detector is disclosed;

[0032] The upper end of the support rod 1 is provided with an adjusting structure and a detection structure; the adjusting structure comprises a rotating rod 8, and the rotating rod 8 is rotatably installed at the upper end of the support rod 1, and the outer side of the rotating rod 8 is fixedly installed with a rotating disc assembly 11; the outer side of the rotating rod 8 is threadedly installed with a lifting rod 9, and the upper end of the lifting rod 9 is fixedly installed with a transverse rod 10, the lower end of the transverse rod 10 is fixedly installed with a lifting cylinder 23, and the lifting cylinder 23 is in sliding connection with the fixing piece 3; the adjusting structure further comprises a fixed block 21, and the fixed block 21 is fixedly installed in the inside of the fixing piece 3, and the inside of the fixed block 21 is slidingly installed with a sliding rod 12, the outer side of the fixed block 21 is sleeved with a supporting spring 13, and the end of the sliding rod 12 away from the fixed block 21 is fixedly installed with a sealing piece 14, and the inside of the fixing piece 3 is formed with an air outlet groove 15, and the air outlet groove 15 is in sealing connection with the sealing piece 14.

[0033] In use of the coal pillar pressure detector for mine pressure analysis, the height of the lateral rod 10 needs to be adjusted, in the process, the rotating disc assembly 11 needs to be rotated and the two sets of rotating disc assembly 11 drive the two sets of rotating rod 8 to rotate, at this time, the rotating rod 8 outside the threaded installation of the lifting rod 9 can be upwardly moved, and the upward movement of the lifting rod 9 drives the lifting cylinder 23 to slide in the inside of the fixing part 3, at this time, the inside of the fixing part 3 can be made to be less than the outside air pressure, in the process, the sealing part 14 is separated from the air outlet groove 15 and the gas enters the inside of the fixing part 3 through the gap between the sealing part 14 and the air outlet groove 15, and the separation of the sealing part 14 and the air outlet groove 15 extrudes the supporting spring 13 and makes the supporting spring 13 contract, in the process of upward movement of the lateral rod 10, the roller assembly 19 contacts the outside of the coal pillar, after the lateral rod 10 stops moving, the supporting spring 13 expands and pushes the sealing part 14 to seal with the air outlet groove 15, so that the positioning rod 2 and the inside of the fixing part 3 are sealed, at this time, the height adjustment process of the detector is completed, effectively improving the convenience of use of the detector.

[0034] On the basis of the above embodiment, as shown in Figs. 1-6 the detection process of the detector is disclosed;

[0035] The upper end of the supporting rod 1 is provided with a pressure detection structure, the detection structure includes a reset spring 16 and a pressing block 22, and the pressing block 22 is slidingly installed in the inside of the mounting part 6, and the reset spring 16 is arranged in the inside of the mounting part 6, and the reset spring 16 is located between the pressing block 22 and the pressure sensor 7; the detection structure further includes a gas conveying cylinder 17, and the gas conveying cylinder 17 is fixedly installed on the outside of the lateral rod 10, and the inside of the gas conveying cylinder 17 slidingly installs a movement cylinder 18, and the movement cylinder 18 is fixedly installed with a roller assembly 19 at the end away from the gas conveying cylinder 17; the inside of the gas conveying cylinder 17 is provided with a strong spring 20, and the gas conveying cylinder 17, the movement cylinder 18 and the roller assembly 19 are equidistantly arranged on the outside of the lateral rod 10.

[0036] In use, the coal pillar pressure detector for mine pressure analysis, the roller assembly 19 is in close contact with the outside of the coal pillar, when the outside of the coal pillar splits or collapses, the roller assembly 19 is extruded and drives the movement cylinder 18 to move, the movement cylinder 18 moves to the inside of the gas conveying cylinder 17, the strong spring 20 is extruded by the movement cylinder 18 and shrinks, the gas in the gas conveying cylinder 17 enters the inside of the fixing part 3 through the transverse rod 10 and the lifting cylinder 23, the fixing part 3 is communicated with the mounting part 6, the gas in the fixing part 3 extrudes the extrusion block 22 and makes the extrusion block 22 slide in the mounting part 6, the mounting part 6 is extruded by the reset spring 16, the pressure sensor 7 transmits the extrusion signal to the processor 4, the processor 4 processes the signal and controls the alarm 5 to work, the alarm 5 sends an alarm to warn the staff, thereby improving the accuracy of the detector and increasing the practicability.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal pillar pressure detector for mine pressure analysis, comprising a support rod (1) and a positioning rod (2) fixedly installed at the upper end of the support rod (1); characterized in that The upper end of the positioning rod (2) is fixedly installed with a fixing part (3), the outer side of the fixing part (3) is fixedly installed with a processor (4) and an alarm (5), and the outer side of the fixing part (3) is fixedly installed with a mounting part (6), and the inside of the mounting part (6) is clampedly installed with a pressure sensor (7); The upper end of the support rod (1) is provided with a height adjusting structure and a pressure detecting structure.

2. A coal pillar stress detector for mine pressure analysis according to claim 1, characterised in that: The adjusting structure comprises a rotating rod (8), which is rotatably installed at the upper end of the support rod (1), and the outer side of the rotating rod (8) is fixedly installed with a rotating disc assembly (11).

3. A coal pillar stress detector for mine pressure analysis according to claim 2, characterised in that: The outer side of the rotating rod (8) is threadedly installed with a lifting rod (9), the upper end of the lifting rod (9) is fixedly installed with a transverse rod (10), the lower end of the transverse rod (10) is fixedly installed with a lifting cylinder (23), and the lifting cylinder (23) is in sliding connection with the fixing part (3).

4. The coal pillar stress detector for mine pressure analysis according to claim 1, characterized in that: The adjusting structure further comprises a fixed block (21), which is fixedly installed in the inside of the fixing part (3), and the inside of the fixed block (21) is slidingly installed with a sliding rod (12), the outer side of the fixed block (21) is sleeved with a supporting spring (13), one end of the sliding rod (12) away from the fixed block (21) is fixedly installed with a sealing part (14), and the inside of the fixing part (3) is provided with an air outlet groove (15) in sealing connection with the sealing part (14).

5. A coal pillar stress detector for mine pressure analysis according to claim 1, characterised in that: The detecting structure comprises a reset spring (16) and a pressing block (22), the pressing block (22) is slidingly installed in the inside of the mounting part (6), and the reset spring (16) is arranged in the inside of the mounting part (6) and located between the pressing block (22) and the pressure sensor (7).

6. A coal pillar stress detector for mine pressure analysis according to claim 1, characterised in that: The detecting structure further comprises a gas conveying cylinder (17), which is fixedly installed at the outer side of the transverse rod (10), and the inside of the gas conveying cylinder (17) is slidingly installed with a movement cylinder (18), and one end of the movement cylinder (18) away from the gas conveying cylinder (17) is fixedly installed with a roller assembly (19).

7. A coal pillar stress detector for mine pressure analysis according to claim 6 wherein: The inside of the gas conveying cylinder (17) is provided with a strong spring (20), and the gas conveying cylinder (17), the movement cylinder (18) and the roller assembly (19) are equidistantly arranged at the outer side of the transverse rod (10).

Images