Tunnel construction steel frame installation space size and inclination inspection device

Abstract

The utility model relates to the technical field of tunnel detection equipment, in particular to a tunnel construction steel frame installation space size and gradient inspection device which comprises a cross rod with a cavity, a vertical rod located in the center of the cross rod and perpendicularly connected with the cross rod, and baffles arranged at the two ends of the cross rod in a sliding mode. A measuring assembly is arranged in the vertical rod and used for measuring the distance between the two baffles. According to the utility model, the baffle plates move outwards by sliding the adjusting rod upwards, so that the distance between the two baffle plates is enlarged until the baffle plates abut against the edge of the arch frame, the reading of the graduated scale is observed, the measuring line value can be measured through simple calculation, namely the design length of a 2X + original instrument, the structure is simple, the cost is low, and mass production can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel detection equipment technical field, especially a kind of tunnel construction steel frame installation interval size and inclination checking device. BACKGROUND

[0002] At present in tunnel construction process, the installation positioning measurement work steps of primary support steel arch are as follows: first, using total station instrument to determine the line center, determine elevation and mark, then measure its transverse coordinate, and calibrate position;Next section is according to design interval, and the position of next section is marked using the same method, and it is embodied in the form of triangle on cross section and longitudinal section;Due to the unevenness of rock surface after tunnel excavation and the variability of construction conditions, when multiple arches are supported in the same period, it cannot be supported according to the point position after laying out, and the construction in tunnel will be offset by ±50mm according to interval on the basis of specification;The error of measurement by using steel tape is large, which causes large deviation of abc three lines, and further causes the included angle between steel frame installation and cross section and longitudinal section, which is not conducive to the stress stability of steel frame;In addition, due to the influence of construction environment, mechanical properties and human operation in tunnel, each section is not level in cross section after steel arch assembly, so the inclination of each section in the whole arch area cannot be represented by traditional detection using plumb method;Due to the influence of working conditions and workload, the assembly difference of each section of steel arch is listed as a selected measurement item, and is often ignored in tunnel construction process;In the case of large inclination of steel arch itself and assembly difference and irregular interval between sections, initial support arch often invades limit in local weak rock stratum. CONTENT OF UTILITY MODEL

[0003] In view of the above problems, the utility model aims at providing a kind of tunnel construction steel frame installation interval size and inclination checking device, at least solve the problems of large inclination of steel arch itself and assembly difference and irregular interval between sections in current tunnel construction process.

[0004] The main idea of the technical scheme adopted by the utility model is as follows:

[0005] Design tunnel construction steel frame installation interval size and inclination checking device, including: design cavity's cross bar, vertical rod is located in the center of cross bar and is connected with cross bar vertically, both ends of cross bar are slidably provided with baffle, two baffles are connected with compression spring, and the rope is connected between compression springs;Adjusting rod is arranged on vertical rod, the middle end of rope is connected with adjusting rod, scale is arranged on both sides of adjusting rod, when adjusting rod is slid upward, two baffles are moved to the outside of both ends of cross bar, and the value of measuring line is obtained after reading *2+original instrument design length.

[0006] To achieve the above object, the utility model solves technical problems thereof adopts the technical scheme that:

[0007] The utility model discloses a tunnel construction steel frame installation interval size and inclination inspection device, comprising: the horizontal pole of cavity, the vertical pole is located the center of horizontal pole and is connected with the vertical of horizontal pole, and the both ends of horizontal pole are slidably provided with the baffle,

[0008] The vertical pole is provided with a measuring assembly, and the measuring assembly is used for measuring the interval of the two baffles.

[0009] Further, the baffles are provided with stabilizing rods on the side close to the horizontal pole, and the stabilizing rods are slidably arranged in the horizontal pole; the stabilizing rods are provided with extension springs on the end close to the vertical pole.

[0010] The vertical pole and the horizontal pole are provided with a rope, and the both ends of the rope are detachably connected to the extension springs; the middle section of the rope is connected to the measuring assembly.

[0011] Further, the measuring assembly comprises a first pulley, an adjusting rod and a scale.

[0012] The adjusting rod is slidably penetrated through the vertical pole.

[0013] The first pulley is connected to the adjusting rod and located in the vertical pole.

[0014] The rope is sleeved on the first pulley.

[0015] The scale is arranged on the vertical pole and located on the both sides of the adjusting rod.

[0016] Further, one end of the adjusting rod located in the vertical pole is provided with a clamping block, and the vertical pole is provided with a clamping groove matched with the clamping block.

[0017] Further, two second pulleys are arranged at the connecting position of the vertical pole and the horizontal pole, and the two second pulleys are respectively located on the both sides of the inner wall of the vertical pole.

[0018] Two third pulleys are arranged in the horizontal pole, and the two third pulleys are respectively located at the end of the extension spring.

[0019] The end of the rope is sequentially wound around the corresponding second pulley and third pulley.

[0020] The utility model has the advantages of:

[0021] 1. The utility model discloses a measuring assembly, by sliding the adjusting rod upwards, the adjusting rod moves and drives the first pulley, thereby driving the rope to move upwards, through the connection of the hook and the extension spring, the baffle moves to the outside, thereby expanding the interval of the two baffles until abutting with the edge of the arch frame, observing the scale reading, through simple calculation, the measuring line value can be measured, i.e. 2X+original instrument design length, simple structure, low cost, and mass production can be realized.

[0022] 2. The utility model discloses a set up the clamping block and the card slot, through the cooperation of clamping block and card slot, can lock the sliding position of the adjusting rod, avoid the unnecessary displacement of adjusting rod after two baffle abuts the arch frame edge, influence measurement operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structural diagram of a tunnel construction steel frame installation interval size and inclination checking device is provided for the utility model;

[0024] Figure 2 The utility model provides Figure 1 The enlarged schematic view of part A in the utility model;

[0025] Figure 3 The internal structure schematic view of the horizontal pole and the vertical pole is provided for the utility model;

[0026] Figure 4 The enlarged schematic view of part B in the utility model is provided for the utility model; Figure 3

[0027] Figure 5 The side schematic view of the horizontal pole is provided for the utility model;

[0028] Figure 6 The connection schematic view of the adjusting rod and the first pulley is provided for the utility model;

[0029] Figure 7 The connection schematic view of the adjusting rod and the vertical pole is provided for the utility model.

[0030] Among them, the above-mentioned drawing includes the following figure marks:

[0031] 10, horizontal pole, 11, sliding groove, 20, vertical pole, 21, card slot, 22, handle, 30, baffle, 31, stabilizing rod, 32, extension spring, 321, hook, 33, rope, 40, first pulley, 41, adjusting rod, 411, adjusting handle, 42, scale, 421, small scale, 43, clamping block, 44, second spring, 50, second pulley, 60, third pulley, 70, level bubble. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments, not all the embodiments.

[0033] ​In the description of the utility model, it is understood that the terms "front", "back", "left", "right", "top", "bottom", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. Example 1

[0034] As shown in Figures 1-7 , the utility model discloses a tunnel construction steel frame installation interval size and inclination checking device, include: as Figure 1 Indicated, the cross bar 10 and the vertical rod 20 of cavity, cross bar 10 is 40cm, vertical rod 20 is located in the center of cross bar 10 and is connected with cross bar 10 vertically, and the internal cavity structure of cross bar 10 and vertical rod 20 is through, and the bottom of vertical rod 20 is handle 22, handle 22 is provided with antiskid line on, avoid hand to drop;The both ends of cross bar 10 are slidably provided with baffle 30, and baffle 30 is used to abut the edge of arch frame and is stably measured;Vertical rod 20 is provided with measuring assembly, and measuring assembly is used to measure the interval of two baffle 30, thereby realizing the numerical value of measuring survey line position.

[0035] Further, as shown in Figure 3 , baffle 30 is provided with stabilizing rod 31 on the side of cross bar 10, as shown in Figure 5 , the cross bar 10 is provided with sliding slot 11, and two stabilizing rods 31 are slidably arranged at the both ends of cross bar 10 through sliding slot 11;Two stabilizing rods 31 are connected with telescopic spring 32 on the one end close to vertical rod 20, and two telescopic springs 32 are provided with hook 321 on the one end close to vertical rod 20;Vertical rod 20 and cross bar 10 are provided with rope 33, and the both ends of rope 33 are connected to two telescopic springs 32 through hook 321 respectively;The middle segment of rope 33 is connected with measuring assembly, and the relative distance of two baffle 30 is calculated by observing the distance of rope 33, thereby realizing the numerical value of measuring survey line.

[0036] Further, the measuring assembly comprises: first pulley 40, adjusting rod 41 and scale 42;Adjusting rod 41 is slidably arranged in vertical rod 20 at one end, and the other end is provided with adjusting handle 411, and adjusting handle 411 extends to the outside of vertical rod 20, which is convenient for adjusting operation;First pulley 40 is connected to adjusting rod 41 and located in vertical rod 20;Rope 33 is sleeved on first pulley 40;Vertical rod 20 is provided with level bubble 70, and level bubble 70 is located below scale 42, and the instrument is measured after reaching stable state by observing level bubble 70;As Figure 2As shown, the scale 42 is arranged on the vertical rod 20 and located on both sides of the adjusting rod 41, and a small scale 421 is further arranged between the two scales 42, the reading principle is consistent with that of a vernier caliper, and the reading can be accurate to 0.2mm; by observing the scale 42 and the small scale 421, the value of the upward movement of the rope 33 can be obtained more accurately; the reading should be multiplied by 2 and added to the original instrument design length of 40cm, that is, the actual distance between the steel arches after measurement. That is, 2*X+40=L; the longest scale is 80cm, and the maximum range of the measuring instrument is 2*80+40=2m.

[0037] Further, as shown in Figure 4 The vertical rod 20 and the horizontal rod 10 are connected at the connecting part, two second pulleys 50 are connected, the two second pulleys 50 are located on the inner walls of the vertical rod 20 and are sleeved with the rope 33; two third pulleys 60 are arranged in the horizontal rod 10, the two third pulleys 60 are located at the ends of the two extension springs 32 and are sleeved with the rope 33, that is, the extension spring 32 at one end of the horizontal rod 10 is connected to one end of the rope 33 through the hook 321, the rope 33 passes through the third pulley 60 and the second pulley 50 and is finally wound on the first pulley 40, and when the adjusting rod 41 is pushed, the length of the rope 33 in the horizontal rod 10 can be easily adjusted, so that the relative distance between the two baffles 30 is adjusted, and the value of the measuring line is obtained after the reading*2+40, and finally the inclination of the steel arch can be obtained through the calculation method in embodiment 1. Embodiment 2

[0038] On the basis of embodiment one, in order to lock the position of the sliding adjusting rod 41 after the sliding adjusting rod 41 is adjusted, further as shown in Figure 6 And Figure 7 One end of the adjusting rod 41 arranged in the vertical rod 20 is provided with a clamping block 43, and a second spring 44 is further arranged on the adjusting rod 41, and a clamping groove 21 matched with the clamping block 43 is arranged in the vertical rod 20, when the adjusting rod 41 is slid to measure, the sliding position of the adjusting rod 41 can be locked through the cooperation of the clamping block 43 and the clamping groove 21, so that unnecessary displacement of the adjusting rod 41 is avoided after the two baffles 30 abut against the edges of the arch, and the measurement operation is affected.

[0039] The specific operation of the tunnel construction steel frame installation distance size and inclination checking device in the utility model in use is as follows:

[0040] Hold the handle 22 to lift the tunnel construction steel frame installation spacing size and inclination checking device to the measurement place, adjust the instrument to reach the stable state by observing the level bubble 70; slide the adjusting rod 41 upward until the two baffles 30 abut against the arch frame edge and stop sliding; get the reading of the upward movement of the rope 33 by observing the scale 42 and the small scale 421, multiply the reading by 2, and add the original instrument design length of 40 cm to obtain the actual distance between the steel arch frames after measurement, that is, 2*X+40=L.

[0041] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A device for checking the installation interval and inclination of a tunnel construction steel frame, comprising: The horizontal rod (10) and the vertical rod (20) of a cavity are characterized in that the vertical rod (20) is vertically connected to the center of the horizontal rod (10), and the horizontal rod (10) is slidably provided with a baffle (30) at both ends; The vertical rod (20) is provided with a measuring assembly for measuring the distance between the two baffles (30).

2. The device according to claim 1, wherein The baffle (30) is provided with a stabilizing rod (31) on one side of the horizontal rod (10), and the stabilizing rod (31) is slidably arranged in the horizontal rod (10); The stabilizing rod (31) is provided with an extension spring (32) at one end of the vertical rod (20); The vertical rod (20) and the horizontal rod (10) are provided with a rope (33), and both ends of the rope (33) are detachably connected to the two extension springs (32); The middle section of the rope (33) is connected to the measuring assembly.

3. The device according to claim 2, wherein the device is characterized by: The measuring assembly comprises a first pulley (40), an adjusting rod (41), and a scale (42); The adjusting rod (41) slides through the vertical rod (20); The first pulley (40) is connected to the adjusting rod (41) and located in the vertical rod (20); The rope (33) is sleeved on the first pulley (40); The scale (42) is arranged on the vertical rod (20) and located on both sides of the adjusting rod (41).

4. The device according to claim 3, wherein the device is characterized by: One end of the adjusting rod (41) located in the vertical rod (20) is provided with a clamping block (43), and the vertical rod (20) is provided with a clamping groove (21) matched with the clamping block (43).

5. The device according to claim 3, wherein the device is characterized by: The vertical rod (20) and the horizontal rod (10) are provided with two second pulleys (50) at the connection, and the two second pulleys (50) are respectively located on both sides of the inner wall of the vertical rod (20); the horizontal rod (10) is provided with two third pulleys (60), and the two third pulleys (60) are respectively located at the ends of the two extension springs (32); The ends of the rope (33) are sequentially wound around the corresponding second pulley (50) and third pulley (60).

Images