Device for measuring settlement deformation of roadway roof

Abstract

The utility model discloses a device for measuring settlement deformation of a roadway roof, and belongs to the technical field of roof settlement deformation measurement. The device comprises a main connecting rod, an internal thread groove is formed in the head of the main connecting rod, a connector is arranged on a tube body of a graduated tube, and the graduated tube is in threaded connection with the internal thread groove of the main connecting rod through the connector; a cross-shaped barb is arranged on a rod body at the tail part of the main connecting rod, a blocking piece is arranged at the head part of the main connecting rod, and the blocking piece is nailed in a roof rock through a rivet and is tightly connected with the head part of the main connecting rod. The device for measuring the settlement deformation of the roadway roof is high in precision, low in cost, high in benefit, simple in structure, easy to install, resistant to interference and convenient to maintain, can achieve high-precision monitoring of displacement deformation of the roadway roof, meanwhile, adapts to various complex working environments, improves safety and reliability of mine engineering, and is suitable for popularization and application. And the requirements of mine engineering on safety monitoring are met.

Description

Technical Field

[0001] The utility model relates to the technical field of roof settlement deformation measurement, and more specifically to a device for measuring the settlement deformation of a tunnel roof. Background Art

[0002] In the field of mine surveying, commonly used methods for monitoring the settlement and deformation of tunnel roofs include manual measurement and sensor monitoring. Manual measurement methods usually use instruments such as levels and theodolites for measurement. Although this method has high accuracy, it is inefficient and requires a lot of manpower and time. The process is cumbersome, time-consuming, and susceptible to human errors. It is difficult to achieve continuous monitoring, resulting in monitoring data that may not be timely and comprehensive. Secondly, the sensor monitoring method installs sensors, such as displacement sensors and pressure sensors, on the tunnel roof to monitor the settlement and deformation of the roof in real time. Although this method can achieve real-time monitoring and is technologically advanced, it has high costs, complex installation and maintenance, and may have unstable performance in harsh environments, which limits its widespread application in more mines. In addition, harsh mine environments, such as high humidity and dust, may affect the performance and life of sensors, further increasing the uncertainty of monitoring. Therefore, there is an urgent need for a new monitoring device that can not only improve monitoring accuracy, but also reduce costs and simplify installation and maintenance processes.

[0003] Based on the above background, a device for measuring the settlement and deformation of the tunnel roof was invented to improve the measurement accuracy, reduce the cost, simplify the installation and maintenance process, and adapt to various complex working environments. It has the characteristics of high precision, low cost, easy installation, and anti-interference, and can meet the requirements of modern mining engineering for safety monitoring. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a device for measuring the settlement and deformation of the tunnel roof. The utility model aims to solve the problems in the prior art that the manual measurement method is time-consuming, labor-intensive, prone to errors, and the sensor monitoring cost is high and the maintenance is complicated. A device for measuring the settlement and deformation of the tunnel roof is provided which is high-precision, low-cost, high-efficiency, simple in structure, easy to install, anti-interference and easy to maintain. Through this new device, high-precision monitoring of the displacement and deformation of the tunnel roof can be achieved, while adapting to various complex working environments, improving the safety and reliability of mining projects, and meeting the needs of mining projects for safety monitoring.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses a device for measuring the settlement and deformation of a tunnel roof, comprising a main connecting rod, a threaded joint is arranged at the tail of the main connecting rod, an internal thread groove is arranged at the head of the main connecting rod, a connecting head is arranged on the body of a graduated tube, and the graduated tube is threadedly connected to the internal thread groove of the main connecting rod through the connecting head;

[0009] A cross-shaped hook is arranged on the rod body at the tail end of the main connecting rod, and a baffle is arranged on the head of the main connecting rod. Holes are arranged at intervals around the surface of the baffle, and rivets pass through the holes and are connected to the baffle. The baffle is nailed into the top plate rock by rivets and is tightly connected to the head of the main connecting rod.

[0010] Furthermore, a spring is arranged in the internal thread groove of the main connecting rod.

[0011] Furthermore, one end of the main connecting rod is connected to a secondary connecting rod, one end of the secondary connecting rod is provided with a secondary rod internal thread groove, and the other end of the secondary connecting rod is provided with a secondary rod threaded joint; a cross-shaped inverted hook is also provided on the rod body of the secondary connecting rod.

[0012] Furthermore, when the main connecting rod is placed in the vertical hole opened on the surface of the top plate, the iron sheet at the outer end of the cross-shaped hook is bent downward to form a hook and fix the rod in the hole. After the rod is fixed, the vertical hole is grouted and the main connecting rod is always in a vertical state.

[0013] Furthermore, when the top plate is deep, the number of auxiliary connecting rods can be increased according to actual conditions, specifically:

[0014] One end of the auxiliary connecting rod is assembled with the threaded joint of the main connecting rod through the auxiliary rod internal thread groove, and the other end of the auxiliary connecting rod can be connected with the auxiliary rod internal thread groove of the adjacent auxiliary connecting rod through the auxiliary rod threaded joint; multiple groups of auxiliary connecting rods cooperate with one group of main connecting rods and are connected end to end in sequence, so as to realize the extension of the length direction of the main connecting rod.

[0015] Furthermore, the end surface of the baffle facing the calibrated tube body is flush with the 0 scale line of the calibrated tube. If not, the relative position of the baffle and the 0 scale line can be adjusted by screwing the calibrated tube.

[0016] Furthermore, one side end surface of the baffle is in close contact with the top plate, and when the top plate is displaced and deformed, the baffle is driven to slide, and the baffle is translated relative to the graduated tube, and the displacement can be read through the graduated tube.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0019] The utility model provides a device for measuring the settlement deformation of the tunnel roof with high precision, low cost, high benefit, simple structure, easy installation, anti-interference and convenient maintenance. Through this new device, high-precision monitoring of the displacement deformation of the tunnel roof can be achieved, and at the same time it can adapt to various complex working environments, improve the safety and reliability of mining projects, and meet the needs of mining projects for safety monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main connecting rod structure of the utility model;

[0021] Figure 2 This is a diagram showing the main connecting rod in use according to the utility model;

[0022] Figure 3 This is a schematic diagram of the auxiliary connecting rod structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-shaped underhook structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the baffle structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the graduated tube of the utility model.

[0026] In the figure: 1, main connecting rod; 2, threaded joint; 3, internal thread groove; 4, cross-shaped hook; 5, baffle; 6, rivet; 7, graduated tube; 701, connector; 8, spring; 9, auxiliary connecting rod; 901, auxiliary rod internal thread groove; 902, auxiliary rod threaded joint. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0028] Example 1

[0029] from Figure 1-6 It can be seen that a device for measuring the settlement and deformation of a tunnel roof in this embodiment includes a main connecting rod 1, a threaded joint 2 is provided at the tail of the main connecting rod 1, an internal thread groove 3 is provided at the head of the main connecting rod 1, a connecting head 701 is provided on the body of a graduated tube 7, and the graduated tube 7 is threadedly connected to the internal thread groove 3 of the main connecting rod 1 through the connecting head 701;

[0030] A spring 8 is arranged in the internal thread groove 3 of the main connecting rod 1 .

[0031] The difference between the main and auxiliary rods is that the internal thread of the graduated tube 7 combined with the main connecting rod 1 is 2cm deeper than the former, and a spring 8 is arranged in the internal thread. The graduated tube 7 is cylindrical, with a measuring range of 15cm and an accuracy of 1mm.

[0032] A cross-shaped hook 4 is provided on the rod body at the tail end of the main connecting rod 1, and a baffle 5 is provided on the head of the main connecting rod 1. Holes are provided at intervals around the surface of the baffle 5. Rivets 6 pass through the holes and are connected to the baffle 5. The baffle 5 is nailed into the top plate rock through the rivets 6 and is tightly connected to the head of the main connecting rod 1.

[0033] One end of the main connecting rod 1 is connected to the auxiliary connecting rod 9, one end of the auxiliary connecting rod 9 is provided with an auxiliary rod internal thread groove 901, and the other end of the auxiliary connecting rod 9 is provided with an auxiliary rod threaded joint 902; the rod body of the auxiliary connecting rod 9 is also provided with a cross-shaped hook 4.

[0034] When the main connecting rod 1 is placed in the vertical hole opened on the top plate surface, the outer end iron sheet of the cross-shaped hook 4 is bent downward to form a hook and fix the rod in the hole. After the rod is fixed, the vertical hole is grouted, and the main connecting rod 1 is always in a vertical state.

[0035] When the top plate is deep, the number of auxiliary connecting rods 9 can be increased according to the actual situation, specifically:

[0036] One end of the secondary connecting rod 9 is assembled with the threaded joint 2 of the main connecting rod 1 through the secondary rod internal thread groove 901, and the other end of the secondary connecting rod 9 can be connected to the secondary rod internal thread groove 901 of the adjacent secondary connecting rod 9 through the secondary rod threaded joint 902; multiple groups of secondary connecting rods 9 are matched with one group of main connecting rods 1 and connected end to end in sequence, so as to realize the extension of the length direction of the main connecting rod 1.

[0037] The last auxiliary connecting rod 9 may not be provided with the auxiliary rod threaded joint 902 .

[0038] The end surface of the baffle 5 facing the body of the calibrated tube 7 is flush with the 0 scale line of the calibrated tube 7. If not, the relative position of the baffle 5 and the 0 scale line can be adjusted by screwing the calibrated tube 7.

[0039] One end surface of the baffle 5 is in close contact with the top plate. When the top plate is displaced and deformed, the baffle 5 is driven to slide, and the baffle 5 is translated relative to the graduated tube 7. The displacement can be read through the graduated tube 7.

[0040] The specific monitoring principle is as follows: the rod is fixed in the hole by the cross-shaped hook 4 at the tail. When the tunnel roof is displaced and deformed, the rod and the graduated tube 7 are connected together and the whole does not displace and deform. The displacement of the roof drives the baffle 5 to slide downward. At this time, the displacement distance is the displacement deformation of the roof, and the deformation can be read from the graduated tube 7, such as Figure 2 As shown;

[0041] 1. Step 1: At the location where the displacement of the roof needs to be monitored, a vertical hole of a certain depth is drilled according to the actual situation of the roof. The hole diameter should be 2 to 3 cm larger than the rod diameter to ensure that the rod can be placed in the hole. The tail of the rod should be flush with the hole mouth. If the thickness of the roof is large, the main connecting rod 1 is connected to several auxiliary connecting rods 9 according to the actual situation. At the same time, the cross-shaped hook 4 at the tail of each rod is bent to support the hole wall to fix the rod;

[0042] 2. Step 2: After the rods are connected and fixed in the holes, the holes are grouted to ensure that the rods are further fixed in the holes. During this process, the rods must be in a vertical state;

[0043] 3. Step 3: Connect the graduated tube 7 to the main connecting rod 1 through the connector 701. The line at the 0 scale should be about 5 mm away from the bottom of the main connecting rod 1.

[0044] 4. Step 4: Pass the baffle 5 through the graduated tube 7 and close to the top plate, and fix it in the top plate rock through the rivet 6. The side of the baffle 5 facing the graduated tube 7 should be flush with the 0 scale line. If it is not flush, adjust the relative position of the baffle surface and the scale line by screwing the graduated tube. The function of the spring 8 is to provide reverse elastic force to increase the friction between the threaded joint and the internal thread when the connector 701 of the graduated tube 7 is not completely in contact with the bottom of the internal thread, so as to further fix the graduated tube 7 and the rod;

[0045] 5. Step 5: The top plate is displaced and deformed, driving the baffle 5 to slide, so that the displacement can be read on the graduated tube 7.

[0046] The utility model aims to solve the problems in the prior art that the manual measurement method is time-consuming, labor-intensive, prone to errors, and the sensor monitoring cost is high and the maintenance is complicated, and provides a device for measuring the settlement and deformation of the tunnel roof with high precision, low cost, high efficiency, simple structure, easy installation, anti-interference and convenient maintenance. Through this new device, high-precision monitoring of the displacement and deformation of the tunnel roof can be achieved, and at the same time it can adapt to various complex working environments, improve the safety and reliability of mining projects, and meet the needs of mining projects for safety monitoring.

[0047] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A device for measuring the settlement and deformation of a tunnel roof, comprising a main connecting rod (1), characterized in that: The tail of the main connecting rod (1) is provided with a threaded joint (2), the head of the main connecting rod (1) is provided with an internal thread groove (3), the body of the graduated tube (7) is provided with a connecting head (701), and the graduated tube (7) is threadedly connected to the internal thread groove (3) of the main connecting rod (1) via the connecting head (701); A cross-shaped hook (4) is arranged on the rod body at the tail end of the main connecting rod (1), and a baffle (5) is arranged at the head of the main connecting rod (1). Holes are arranged at intervals around the surface of the baffle (5), and rivets (6) pass through the holes and are connected to the baffle (5). The baffle (5) is nailed into the top plate rock through the rivets (6) and is tightly connected to the head of the main connecting rod (1).

2. The device for measuring the settlement and deformation of the tunnel roof according to claim 1, characterized in that: A spring (8) is arranged in the internal thread groove (3) of the main connecting rod (1).

3. The device for measuring the settlement and deformation of a tunnel roof according to claim 1, characterized in that: One end of the main connecting rod (1) is connected to a secondary connecting rod (9), one end of the secondary connecting rod (9) is provided with a secondary rod internal thread groove (901), and the other end of the secondary connecting rod (9) is provided with a secondary rod threaded joint (902); a cross-shaped hook (4) is also provided on the rod body of the secondary connecting rod (9).

4. The device for measuring the settlement and deformation of a tunnel roof according to claim 1, characterized in that: When the main connecting rod (1) is placed in the vertical hole opened on the top plate surface, the outer end iron sheet of the cross-shaped hook (4) is bent downward to form a hook and fix the rod in the hole. After the rod is fixed, the vertical hole is grouted so that the main connecting rod (1) is always in a vertical state.

5. The device for measuring the settlement and deformation of the tunnel roof according to claim 4, characterized in that: When the top plate is deep, the number of auxiliary connecting rods (9) can be increased according to the actual situation, specifically: One end of the auxiliary connecting rod (9) is assembled with the threaded joint (2) of the main connecting rod (1) through the auxiliary rod internal thread groove (901), and the other end of the auxiliary connecting rod (9) can be connected to the auxiliary rod internal thread groove (901) of the adjacent auxiliary connecting rod (9) through the auxiliary rod threaded joint (902); multiple groups of auxiliary connecting rods (9) are matched with one group of main connecting rods (1) and connected end to end in sequence, so that the main connecting rod (1) can be extended in the length direction.

6. The device for measuring the settlement and deformation of the tunnel roof according to claim 5, characterized in that: The end surface of one side of the baffle (5) facing the body of the graduated tube (7) is flush with the 0 scale line of the graduated tube (7); if not, the relative position of the baffle (5) and the 0 scale line can be adjusted by screwing the graduated tube (7).

7. The device for measuring the settlement and deformation of the tunnel roof according to claim 6, characterized in that: One end surface of the baffle (5) is in close contact with the top plate. When the top plate is displaced and deformed, the baffle (5) is driven to slide, and the baffle (5) is translated relative to the graduated tube (7). The displacement can be read through the graduated tube (7).

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