Hook rod for convergence measurement

Abstract

The utility model discloses a hook rod for convergence measurement, which comprises a rod body, the rod body comprises a magnetic rod, a telescopic rod and a bottom rod which are sequentially connected, an electromagnet, a hook support, an electromagnet power-on switch and a battery are arranged on the rod body, the electromagnet is arranged at the top of the rod body, the electromagnet power-on switch is arranged at the bottom of the rod body, and the hook support is arranged on the bottom of the rod body. The electromagnet, the electromagnet power-on switch and the battery are electrically connected through wires. According to the utility model, measuring personnel can accurately hang the hook on a convergence measuring pile hanging ring on the ground, climbing operation is avoided, the success rate of hooking of the hook can be greatly improved, the high-altitude hooking work is more accurate and easier, the working efficiency is improved, and the convergence measuring cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cavern surrounding rock deformation monitoring, specifically relates to a hook rod for convergence measurement. BACKGROUND

[0002] In the process of excavation construction, convergence measurement needs to be carried out in order to master the deformation of surrounding rock in large caverns such as underground powerhouse, diversion tunnel, tunnel, etc. Convergence measurement is a necessary item for safety monitoring of underground cavern construction. Convergence measurement method is simple to operate, low in cost, high in precision, and is a commonly used method for convergence measurement.

[0003] Convergence measurement method uses convergence meter to measure the relative displacement between convergence measuring piles. Convergence measuring piles are arranged in sections on the top and waist of the cavern according to design requirements, and generally consist of ribbed steel bars and a metal hanging ring. During observation, the two hooks of the convergence meter are hung into the hanging ring of the convergence measuring pile to form a measuring line, and the distance between the two convergence measuring piles is observed using a reading device. The relative displacement of the two observation points at different times is converted into the difference between the two readings of the convergence meter, and the distance change between the measurement positions can be obtained.

[0004] For convergence measuring points with low elevation on the side wall of the cavern, the hooks can be directly hung into the hanging ring of the convergence measuring pile by hand, but for convergence measuring points on the top of the cavern, the measuring personnel need to use climbing equipment or a long rod to hang the hooks. Climbing operation not only increases safety hazards and reduces work efficiency, but also is difficult to realize in actual work due to the influence of site conditions, cost factors, etc. For higher caverns, personnel on the ground not only have difficulty in seeing the position of the hanging ring on the top of the cavern, but also have greater shaking when using a long rod, and it is difficult to hang the hooks into the hanging ring using a long rod when the height of the cavern exceeds 3m. Therefore, a long rod is needed to accurately hang the hooks into the hanging ring of the convergence measuring pile for the convenience of measuring personnel, so as to simply and quickly complete the convergence measurement work. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is the inconvenience of hanging hooks into the hanging ring using a long rod in convergence measurement. The utility model provides a hook rod for convergence measurement, which can conveniently and accurately hang hooks into the hanging ring of the convergence measuring pile for measuring personnel.

[0006] To solve the above technical problem, the utility model adopts the following technical scheme:

[0007] A hook rod for convergence measurement, comprising a rod body, the rod body comprising a magnetic force rod, an extension rod and a bottom rod connected in sequence, an electromagnet, a hook support, an electromagnet power-on switch and a battery are installed on the rod body, the electromagnet is installed at the top of the rod body, the electromagnet power-on switch is installed at the bottom of the rod body, and the electromagnet, the electromagnet power-on switch and the battery are electrically connected through wires.

[0008] The utility model discloses a hook support and magnetic force pole are set up on the top of the pole body, install electromagnet and hook support on the magnetic force pole, so that the utility model for use can first utilize electromagnet adsorption convergence survey stake ring, and then utilize hook support to hang the hook into the convergence survey stake ring accurately.

[0009] Preferably, the electromagnet is installed on the magnetic force pole, and the electromagnet power switch and the battery are installed on the bottom pole.

[0010] Preferably, a lighting device is installed on the magnetic force pole to provide lighting at the hook, facilitating hook operation.

[0011] Preferably, the lighting device is an LED lighting device.

[0012] Preferably, the telescopic pole includes n telescopic poles, where n is an integer greater than 1, the magnetic force pole is connected to the first telescopic pole, and the bottom pole is connected to the last telescopic pole.

[0013] Preferably, each telescopic pole decreases in diameter from bottom to top.

[0014] Preferably, the telescopic pole is a hollow tube, and the wire is arranged in the telescopic pole.

[0015] Preferably, the telescopic pole is made of carbon fiber.

[0016] Preferably, the battery is a rechargeable battery, and the bottom pole is provided with a charging port for charging the rechargeable battery.

[0017] Preferably, the hook support is a Y-shaped fork or a U-shaped fork.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1) The utility model can freely extend according to the height of a cavern, is convenient to carry and store, and is very convenient.

[0020] 2) Using the utility model, a measuring personnel can complete the hanging and taking of a hook on the ground, avoiding climbing work and reducing the risk of falling from a high altitude.

[0021] 3) The utility model controls the electromagnet to adsorb the convergence survey stake ring through the electromagnet power switch, greatly improves the success rate of hook hanging, makes high-altitude hook work more accurate and easy, improves work efficiency, and reduces costs. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 It is a use state structure schematic diagram of the hook rod for convergence measurement of the present application.

[0024] In the figure: 1-magnetic force rod, 11-electromagnet, 12-LED lighting device, 2-telescopic rod, 3-bottom rod, 31-rechargeable battery, 32-electromagnet power-on switch, 33-charging port, 4-hook support, 5-tunnel rock mass, 6-convergence measuring pile. DETAILED DESCRIPTION

[0025] The present application will be further described below in combination with specific preferred embodiments, but the protection scope of the present application is not limited by this.

[0026] In the description of the present application, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figure 1 The present application is mainly composed of a magnetic force rod 1, a telescopic rod 2, a bottom rod 3 and a hook support 4.

[0029] The magnetic force rod 1 has a hollow cavity, and the cavity is provided with an electromagnet 11 inside and an LED lighting device 12 outside.

[0030] The telescopic rod 2 comprises n telescopic rods, n>1. The telescopic rod 2 is a hollow tube made of light, high-hardness and corrosion-resistant material, such as carbon fiber. The telescopic rod 2 is internally provided with spiral wires for electrical connection. The telescopic rod 2 is designed in a structure that each section decreases in diameter from bottom to top. Each section can be freely telescoped and fixed along the telescopic rod axis. The magnetic rod 1 is connected with the first section of the telescopic rod 2, and the bottom rod 3 is connected with the last section of the telescopic rod 2.

[0031] The bottom rod 3 is internally provided with a rechargeable battery 31, and externally provided with an electromagnet energizing switch 32 and a charging port 33.

[0032] The hook support 4 is a Y-shaped fork or a U-shaped fork, which is fixed to the magnetic rod 1 and used for fixing and moving the convergence meter hook to a specified position.

[0033] The rechargeable battery 31, the electromagnet energizing switch 32 and the electromagnet 11 are electrically connected through the spiral wires.

[0034] Specific application of the utility model:

[0035] A convergence meter measurement method is used for convergence monitoring during a tunnel construction period. The tunnel has a city gate-shaped section with a section size of 4.0m*4.0m (width*height). One convergence measuring pile is arranged at the top and both sides of each chamber monitoring section. In order to facilitate on-site operation, the telescopic magnetic hook rod for convergence measurement is used as an auxiliary tool for convergence monitoring data collection.

[0036] The magnetic rod 1 and the telescopic rod 2 are made of carbon fiber. The length of each section of the telescopic rod 2 is 80cm, and the length of the bottom rod 3 is 20cm.

[0037] In the embodiment, the height of the chamber top measuring point from the ground is 4m. According to the required height, the total length of the telescopic rod 2 is about 3m. During the measurement operation, the measurement personnel first determine whether to turn on the LED illuminating device 12 according to the light condition in the tunnel. Then, the measurement personnel pull out the telescopic rod 2 to a suitable length and fix it. Then, the hook support 4 is used to support the convergence meter hook. The top end of the magnetic rod 1 is moved to the vicinity of the hanging ring of the convergence measuring pile 6. The electromagnet energizing switch 32 is turned on, so that the magnetic rod 1 is adsorbed to the hanging ring of the convergence measuring pile 6. Then, the energizing switch is turned off, and the magnetism of the electromagnet 11 disappears. The hook rod is finely adjusted, so that the hook is hung on the hanging ring of the convergence measuring pile 6. Then, the hook rod is retracted.

[0038] Then, the other hook of the convergence meter is manually hung on the hanging ring of the convergence measuring pile at the waist of the chamber. After the assembly of the convergence meter is completed, a pulling force is applied and the reading is taken according to the requirements. The readings are recorded. After the distance between the chamber top convergence measuring point and the two waist convergence measuring points is measured, the hook at the high position is taken down by using the telescopic magnetic hook rod. Then, the hook at the low position is manually taken down. The measuring equipment is stored, and the measurement is completed.

[0039] Obviously, the telescopic magnetic hook rod for convergence measurement can conveniently carry out hooking and unhooking work during convergence measurement, the convergence measurement work can be completed by the staff on the ground, the climbing operation is avoided, and the risk of personnel falling from a high altitude is reduced. Meanwhile, the magnetic head of the electromagnet 11 is adsorbed to the convergence measuring pile through the electromagnet power-on switch 32, the accuracy of hooking and unhooking is greatly improved, the labor intensity of the measurement personnel is reduced, and the work efficiency is improved.

[0040] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can utilize the disclosed technical content to make many possible changes and modifications to the technical scheme of the utility model, or modify equivalent embodiments with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. A convergence measuring hook bar comprising a bar body, characterised in that: The rod body comprises a magnetic force rod, an extension rod and a bottom rod connected in sequence, an electromagnet, a hook support, an electromagnet power-on switch and a battery are installed on the rod body, the electromagnet is installed on the top of the rod body, the electromagnet power-on switch is installed on the bottom of the rod body, and the electromagnet, the electromagnet power-on switch and the battery are electrically connected through wires.

2. The hook rod for convergence measurement according to claim 1, wherein The electromagnet is installed on the magnetic force rod, and the electromagnet power-on switch and the battery are installed on the bottom rod.

3. The hook rod for convergence measurement according to claim 1, wherein An illuminating device is installed on the magnetic force rod.

4. The hook rod for convergence measurement according to claim 3, wherein The illuminating device is an LED illuminating device.

5. The hook rod for convergence measurement according to claim 1, wherein The extension rod comprises n extension rods, n is an integer greater than 1, the magnetic force rod is connected with the first extension rod, and the bottom rod is connected with the last extension rod.

6. The hook rod for convergence measurement according to claim 5, wherein The diameter of each extension rod decreases from bottom to top.

7. The hook rod for convergence measurement according to claim 5, wherein The extension rod is a hollow tube, and the wires are arranged in the extension rod.

8. The hook rod for convergence measurement according to claim 5, wherein The extension rod is made of carbon fiber.

9. The hook rod for convergence measurement according to claim 1, wherein The battery is a rechargeable battery, and a charging port for charging the rechargeable battery is arranged on the bottom rod.

10. The hook rod for convergence measurement according to claim 1, wherein The hook support is a Y-shaped fork or a U-shaped fork.

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