High-precision positioning auxiliary measuring tool for subway track laying

Abstract

The utility model relates to track laying measurement technical field discloses high accuracy positioning auxiliary measuring tool for subway track laying, including support frame and two measuring support platform, the support frame bottom both sides are installed in the top of two measuring support platform respectively. The utility model, through being equipped with the measuring support platform, can support the horizontal placement of support frame, the lifting end of two lifting sling joint gourds can stably horizontally hang subway track, the balanced measuring board plays the horizontal laying effect, the lifting adjusting column can be in the track of the translation mounting frame and carry out stable left and right displacement adjustment, make the lifting adjusting column can drive horizontal movement measuring scale and vertical movement measuring scale displacement, carry out multidirectional measurement to the region to be laid, and the measurement range is extensive, make the device can stably horizontally hang subway track, and the track auxiliary laying effect is good, and the construction is convenient, and multidirectional measurement can be carried out, and the high accuracy positioning laying of being convenient for auxiliary track is carried out, and the construction auxiliary effect is good.

Description

Technical Field

[0001] This utility model relates to the field of track laying measurement technology, and in particular to a high-precision positioning auxiliary measurement tool for subway track laying. Background Technology

[0002] In subway track construction, the accuracy of track laying directly determines the safety, stability, and passenger comfort of train operation, making it a core aspect of project quality control. To achieve high-precision laying, key track parameters must be obtained using positioning-assisted measuring tools, including the track centerline's horizontal position, rail top elevation, track gauge, and track direction deviation. During the measurement process, the tools must precisely align with track components (such as sleepers and fasteners), feeding the measurement data back to the construction system in real time. Construction personnel then adjust the height of track supports, the tightness of fasteners, and the lateral position of the track based on the data, ultimately ensuring the track laying meets design specifications.

[0003] Currently, subway track laying requires prior surveying and mapping. However, during the actual installation of subway tracks, real-time measurements may not be readily available, and the horizontal lifting and laying capabilities are insufficient, hindering effective auxiliary work and making the process inconvenient. Furthermore, existing tools typically employ manual measurement, which lacks stable positioning and accuracy. Fixed measurement methods, while convenient for multi-directional and multi-angle measurements, are also inconvenient and generally yield poor results. Therefore, we propose a high-precision positioning auxiliary measurement tool for subway track laying to address these issues. Utility Model Content

[0004] In response to the problems raised, this utility model provides a high-precision positioning auxiliary measurement tool for subway track laying to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision positioning auxiliary measuring tool for subway track laying includes a support frame and two measuring support platforms, with the bottom sides of the support frame respectively installed on the top of the two measuring support platforms; The top of the support frame is fitted with two lifting bearing seats, and the bottom of each of the two lifting bearing seats is equipped with a lifting hoist. A balance measuring plate is provided between the lifting ends of the two lifting hoists. The front and rear sides of the support frame are equipped with translation mounting frames. Lifting adjustment columns are slidably engaged inside the two translation mounting frames. A horizontal moving measuring ruler is installed at the bottom of the lifting adjustment column, and a vertical moving measuring ruler is provided on the side of the lifting adjustment column.

[0006] Preferably, the two measuring support platforms are symmetrically installed on both sides of the support frame, each of the two measuring support platforms is provided with a movable roller at the bottom four corners, and each of the two measuring support platforms is provided with a level measuring instrument at the top.

[0007] Preferably, each of the four corners of the two measuring support platforms is provided with a support threaded tube, and a threaded lifting column is threadedly connected inside the support threaded tube. The bottom end of the threaded lifting column extends out of the support threaded tube and is fixedly connected with a sharp corner anti-slip foot. An adjustment handle is provided at the top of the threaded lifting column.

[0008] Preferably, the two lifting bearing seats are symmetrically slidably sleeved on the top of the support frame, and each of the two lifting bearing seats is provided with a control cylinder on its opposite side. Both control cylinders are fixedly installed on the top of the support frame, and the side of the support frame is provided with a control switch. The control switch is electrically connected to the control cylinder and the lifting hoist respectively.

[0009] Preferably, the two lifting hoists are respectively fixed to the bottom of the two lifting support seats, and the lifting ends of the two lifting hoists are provided with mounting plates. Strong magnetic electromagnets are fixedly installed at the bottom of the two mounting plates, and the two sides of the balance measuring plate are respectively fixedly installed between the two mounting plates.

[0010] Preferably, the balance measuring plate is provided with an anti-deviation block in the middle and a level on the top of the balance measuring plate.

[0011] Preferably, the lifting adjustment column includes a lifting fixed column and a movable bearing block. The movable bearing block is slidably engaged with the inner side of the translation mounting frame. The lifting fixed column is inserted and slidably disposed on the inner side of the movable bearing block. The movable bearing block is threadedly connected to a threaded positioning rod that is pressed against the lifting fixed column. The movable bearing block is a hard magnetic block.

[0012] Preferably, the bottom and side of the lifting adjustment column are respectively provided with magnetic support frames, and the two magnetic support frames are respectively magnetically positioned by the horizontal movement measuring ruler and the vertical movement measuring ruler. Both the horizontal movement measuring ruler and the vertical movement measuring ruler are metal rulers.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This high-precision positioning auxiliary measuring tool for subway track laying features a measuring support platform that supports the horizontal placement of the support frame. The lifting bearing seat can move stably on top of the measuring support platform, which serves to fix the lifting hoist. The lifting end of the lifting hoist can be adjusted. A balance measuring plate is installed between the lifting ends of the two lifting hoists to ensure horizontal laying. The lifting ends of the two lifting hoists can stably and horizontally lift the subway track, making the device able to stably and horizontally lift the subway track. The track laying assistance effect is good and the construction is convenient.

[0014] 2. This high-precision positioning auxiliary measuring tool for subway track laying uses a sliding mounting frame on both the front and rear sides of the support frame. The lifting and adjusting column can be stably adjusted left and right within the track of the sliding mounting frame. The entire lifting and adjusting column can be adjusted up and down, allowing it to move the lateral and vertical measuring rulers. The lateral measuring ruler can move back and forth at the bottom of the lifting and adjusting column, while the vertical measuring ruler can be adjusted up and down at the lifting and adjusting column. This allows for multi-directional measurement of the area to be laid, with a wide measurement range. The device does not require manual operation and can measure in multiple directions, facilitating high-precision positioning and laying of the track, resulting in good construction assistance. Attached Figure Description

[0015] Figure 1 A frontal three-dimensional schematic diagram of the high-precision positioning auxiliary measuring tool for subway track laying according to this utility model; Figure 2 A top-view three-dimensional schematic diagram of the high-precision positioning auxiliary measuring tool for subway track laying according to this utility model; Figure 3 This is a three-dimensional front view of the translational mounting frame and lifting adjustment column of this utility model after the removal of the components. Figure 4 This is a frontal perspective three-dimensional schematic diagram of the connection structure between the threaded pipe and the threaded lifting column of this utility model; Figure 5 This is a frontal perspective three-dimensional schematic diagram of the connection structure between the translational mounting frame and the movable bearing block of this utility model.

[0016] In the diagram: 1. Support frame; 2. Measuring support platform; 201. Moving roller; 202. Level measuring instrument; 203. Support threaded pipe; 204. Threaded lifting column; 205. Sharp corner anti-slip foot; 206. Adjusting handle; 3. Lifting bearing seat; 301. Control cylinder; 302. Control switch; 4. Lifting hoist; 401. Mounting fixing plate; 402. Strong magnetic electromagnet; 5. Balance measuring plate; 501. Anti-deviation block; 502. Level; 6. Horizontal moving mounting frame; 7. Lifting adjusting column; 701. Lifting fixing column; 702. Moving bearing block; 703. Threaded positioning rod; 704. Magnetic bearing frame; 8. Horizontal moving measuring ruler; 9. Vertical moving measuring ruler. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Please see Figures 1-5 A high-precision positioning auxiliary measuring tool for subway track laying includes a support frame 1 and two measuring support platforms 2. The bottom sides of the support frame 1 are respectively installed on the top of the two measuring support platforms 2. The top of the support frame 1 is fitted with two lifting bearing seats 3. The bottom of each of the two lifting bearing seats 3 is equipped with a lifting hoist 4. A balance measuring plate 5 is provided between the lifting ends of the two lifting hoists 4. The front and rear sides of the support frame 1 are equipped with translation mounting frames 6. The interior of each of the two translation mounting frames 6 is slidably engaged with a lifting adjustment column 7. A horizontal moving measuring ruler 8 is installed at the bottom of the lifting adjustment column 7. A vertical moving measuring ruler 9 is provided on the side of the lifting adjustment column 7. The beneficial effects that this plan aims to achieve are: The measuring support platform 2 supports the support frame 1 to be placed horizontally. The lifting bearing seat 3 can move stably on the top of the measuring support platform 2, which plays a role in fixing the lifting hoist 4. The lifting end of the lifting hoist 4 can be adjusted. A balance measuring plate 5 is installed between the lifting ends of the two lifting hoists 4 to play a role in horizontal laying. The lifting ends of the two lifting hoists 4 can stably and horizontally lift the subway track. The support frame 1 is equipped with a sliding mounting frame 6 on both the front and rear sides. The lifting and adjusting column 7 can be stably adjusted left and right within the track of the sliding mounting frame 6. The lifting and adjusting column 7 can be adjusted up and down as a whole, so that the lifting and adjusting column 7 can drive the horizontal moving measuring ruler 8 and the vertical moving measuring ruler 9 to move. The horizontal moving measuring ruler 8 can be moved back and forth at the bottom of the lifting and adjusting column 7 for measurement, and the vertical moving measuring ruler 9 can be adjusted up and down at the lifting and adjusting column 7 for measurement. It can measure the area to be laid in multiple directions, with a wide measurement range, so that the device can stably and horizontally suspend the subway track. The track-assisted laying effect is good, the construction is convenient, and it can measure in multiple directions, which is convenient for high-precision positioning and laying of the auxiliary track, resulting in a good construction assistance effect.

[0020] Furthermore, two measuring support platforms 2 are symmetrically installed on both sides of the support frame 1. Each of the four bottom corners of the two measuring support platforms 2 is provided with a movable roller 201, and each of the two measuring support platforms 2 is provided with a level measuring instrument 202 on its top. Specifically, two measuring support platforms 2 are symmetrically installed on both sides of the support frame 1, which provides good support and limit for the support frame 1. Each of the four corners of the bottom of the measuring support platform 2 is equipped with a movable roller 201, which can play a good role in overall movement and is easy to move. Each of the measuring support platforms 2 is equipped with a level measuring instrument 202 on the top, which can perform level monitoring and measurement, making it convenient to perform level measurement on uneven paved road sections. The whole equipment can be adjusted horizontally.

[0021] Furthermore, each of the four corners of the two measuring support platforms 2 is provided with a support threaded tube 203, and the inside of the support threaded tube 203 is threadedly connected with a threaded lifting column 204. The bottom end of the threaded lifting column 204 extends out of the support threaded tube 203 and is fixedly connected with a sharp corner anti-slip foot 205. The top of the threaded lifting column 204 is provided with an adjustment handle 206. Specifically, the measuring support platform 2 is provided with support threaded tubes 203 at each of its four corners. The threaded lifting column 204 can be threaded into the inner side of the support threaded tube 203. The upper and lower ends of the threaded lifting column 204 are respectively equipped with pointed anti-slip feet 205 and adjustment handles 206. The pointed anti-slip feet 205 can be inserted into the subway laying area to stably place the measuring support platform 2. The threaded lifting column 204 can be rotated by gripping the adjustment handle 206, which is convenient for adjustment. It is easy to adjust the lifting of the support threaded tube 203 and the pointed anti-slip feet 205, and it is easy to stably place the measuring support platform 2 and the support frame 1 on uneven ground. The level measurement of the level measuring instrument 202 is stable.

[0022] Furthermore, two lifting bearing seats 3 are symmetrically slidably sleeved on the top of the support frame 1. Each of the two lifting bearing seats 3 is provided with a control cylinder 301 on the opposite side. Both control cylinders 301 are fixedly installed on the top of the support frame 1. A control switch 302 is provided on the side of the support frame 1. The control switch 302 is electrically connected to the control cylinder 301 and the lifting hoist 4 respectively. Specifically, each of the two lifting support seats 3 is equipped with a control cylinder 301 on one side opposite to the other. The two control cylinders 301 can synchronously drive the two lifting support seats 3 to move closer or further away from each other. When it is necessary to adjust the track to the left or right, the two control cylinders 301 can work together to drive the lifting support seats 3 to move synchronously in the same direction, which facilitates the positioning and laying of the track and makes adjustment and adaptation convenient.

[0023] Furthermore, the two lifting hoists 4 are respectively fixed to the bottom of the two lifting bearing seats 3. The lifting ends of the two lifting hoists 4 are provided with mounting plates 401. Strong magnetic electromagnets 402 are fixedly installed at the bottom of the two mounting plates 401. The two sides of the balance measuring plate 5 are respectively fixedly installed between the two mounting plates 401. Specifically, two lifting hoists 4 are fixed to the bottom of two lifting support seats 3 respectively, which facilitates the support and bearing of the lifting hoists 4 by the lifting support seats 3, and the bearing is stable. The lifting end of the lifting hoist 4 is provided with a mounting plate 401, which is used to install a strong magnetic electromagnet 402. The two strong magnetic electromagnets 402 can be magnetically attracted to the top sides of the track, which facilitates the lifting and bearing and is easy to install and adapt. A balance measuring plate 5 is installed between the two mounting plates 401, which is easy to install and fix, and facilitates the stable bearing installation of the balance measuring plate 5. The track is located directly below the balance measuring plate 5, which can be visually assisted in calibration by the balance measuring plate 5, which is easy to adapt.

[0024] Furthermore, the balance measuring plate 5 is provided with an anti-deviation block 501 in the middle and a level 502 at the top of the balance measuring plate 5. Specifically, the balance measuring plate 5 has an anti-deviation block 501 in the middle, which plays a role in preventing deviation and centering the plate. It has a good horizontal anti-deviation effect. The level 502 can assist in level detection, making it easy to keep the balance measuring plate 5 in a stable horizontal position and is easy to adapt.

[0025] Furthermore, the lifting adjustment column 7 includes a lifting fixed column 701 and a movable bearing block 702. The movable bearing block 702 is slidably engaged with the inner side of the translation mounting frame 6. The lifting fixed column 701 is inserted and slidably inserted into the inner side of the movable bearing block 702. The side of the movable bearing block 702 is threadedly connected to a threaded positioning rod 703 that is pressed against the lifting fixed column 701. The movable bearing block 702 is a hard magnetic block. Specifically, the movable support block 702 slides and engages with the inner side of the translation mounting frame 6, allowing the movable support block 702 to easily move within the track of the translation mounting frame 6. Since the movable support block 702 is a magnetic block, it can be magnetically positioned with the translation mounting frame 6, making movement convenient. The lifting fixing column 701 is inserted and fixed onto the movable support block 702, and the threaded positioning rod 703 is threaded onto the side of the movable support block 702. The threaded positioning rod 703 can be pressed against the lifting fixing column 701, which can position and fix the lifting fixing column 701. When the lifting fixing column 701 needs to be raised or lowered, simply rotate the threaded positioning rod 703 to adjust the tightness, making it convenient to use.

[0026] Furthermore, the bottom and side of the lifting adjustment column 7 are respectively provided with magnetic bearing frames 704. The two magnetic bearing frames 704 magnetically position the horizontal movement measuring ruler 8 and the vertical movement measuring ruler 9 respectively. Both the horizontal movement measuring ruler 8 and the vertical movement measuring ruler 9 are metal rulers. Specifically, the bottom and sides of the lifting adjustment column 7 are respectively equipped with magnetic bearing frames 704, which can magnetically position the horizontally moving measuring ruler 8 and the vertically moving measuring ruler 9 respectively. The horizontally moving measuring ruler 8 can be moved back and forth when magnetically attracted, and the forward and backward adjustment is convenient. The vertically moving measuring ruler 9 can be moved up and down, and the adjustment adaptability is good. Both the horizontally moving measuring ruler 8 and the vertically moving measuring ruler 9 are metal rulers, and the magnetic positioning is stable. The lifting and adjustment activities are convenient, which facilitates high-precision auxiliary measurement and makes measurement convenient.

[0027] How to use and how to work this device: Measuring support platforms 2 are provided on both sides of the bottom of the support frame 1 to provide support and load-bearing function. The measuring support platforms 2 can be placed horizontally. Two lifting support seats 3 are sleeved on the top of the support frame 1. The two lifting support seats 3 can be controlled by two control cylinders 301 to move synchronously. The lifting support seats 3 can move stably on the top of the measuring support platform 2. The lifting support seats 3 can fix the lifting hoist 4. The lifting end of the lifting hoist 4 can be adjusted. A balance measuring plate 5 is installed between the lifting ends of the two lifting hoists 4 to provide horizontal laying function and horizontal limit support effect, so that the two lifting hoists 4 can stably and horizontally lift the subway track. The track auxiliary laying effect is good and the construction is convenient. The support frame 1 is equipped with a sliding mounting frame 6 on both the front and rear sides. A lifting adjustment column 7 is slidably engaged in the sliding mounting frame 6, so that the lifting adjustment column 7 can be stably adjusted left and right within the track of the sliding mounting frame 6. The lifting adjustment column 7 can be adjusted up and down as a whole, so that the lifting adjustment column 7 supports the horizontal moving measuring ruler 8 and the vertical moving measuring ruler 9, and can be adjusted up and down and left and right as required. The horizontal moving measuring ruler 8 can be moved back and forth at the bottom of the lifting adjustment column 7 for measurement, and the vertical moving measuring ruler 9 can be adjusted up and down at the lifting adjustment column 7 for measurement. This facilitates multi-directional measurement of the area to be laid on the subway track, with a wide measurement range, stable measurement without handheld operation, high measurement accuracy, and facilitates high-precision positioning and laying of the track, resulting in good construction assistance. Two measuring support platforms 2 are symmetrically installed on both sides of the support frame 1, which provides good support and limit for the support frame 1. Each of the four corners of the bottom of the measuring support platform 2 is equipped with a movable roller 201, which can play a good overall movement role and is easy to move. Each of the measuring support platforms 2 is equipped with a level measuring instrument 202 on the top. The level measuring instrument 202 can perform level monitoring and measurement, which is convenient for level measurement on uneven paved road sections. The whole equipment can be adjusted horizontally. The measuring support platform 2 is equipped with support threaded tubes 203 at each of its four corners. The threaded lifting column 204 can be threaded into the inner side of the support threaded tube 203. The upper and lower ends of the threaded lifting column 204 are respectively equipped with pointed anti-slip feet 205 and adjustment handles 206. The pointed anti-slip feet 205 can be inserted into the subway laying area to stably place the measuring support platform 2. The threaded lifting column 204 can be rotated by gripping the adjustment handle 206, which is convenient for adjustment. It is easy to adjust the lifting of the support threaded tube 203 and the pointed anti-slip feet 205, and it is easy to stably place the measuring support platform 2 and the support frame 1 on uneven ground. The level measuring instrument 202 has stable level measurement. Each of the two lifting support seats 3 is equipped with a control cylinder 301 on one side opposite to the other. The two control cylinders 301 can synchronously drive the two lifting support seats 3 to move closer or further away from each other. When it is necessary to adjust the left and right displacement of the track, the two control cylinders 301 can cooperate synchronously to drive the lifting support seats 3 to move synchronously in the same direction, which facilitates the positioning and laying of the track and makes adjustment and adaptation convenient. Two lifting hoists 4 are fixed to the bottom of two lifting support seats 3 respectively, which facilitates the support and load-bearing of the lifting hoists 4 by the lifting support seats 3. The load-bearing fit is stable. The lifting end of the lifting hoist 4 is provided with a mounting plate 401. The mounting plate 401 is used to install a strong magnetic electromagnet 402. The two strong magnetic electromagnets 402 can be magnetically attracted to the top sides of the track, which facilitates the lifting load and is easy to install. A balance measuring plate 5 is installed between the two mounting plates 401. The installation and fixing is convenient and facilitates the stable load-bearing installation of the balance measuring plate 5. The track is located directly below the balance measuring plate 5, which can be visually assisted for calibration. The fit is convenient. The balance measuring plate 5 is provided with an anti-deviation block 501 in the middle, which plays a role in preventing deviation and centering the plate. It has a good horizontal anti-deviation effect. The level 502 can assist in the horizontal detection, making it easy to keep the balance measuring plate 5 in a stable horizontal position and is easy to adapt. The lifting adjustment column 7 includes a lifting fixed column 701 and a movable support block 702. The movable support block 702 slides and engages with the inner side of the translation mounting frame 6, allowing it to easily move within the track of the translation mounting frame 6. Since the movable support block 702 is a magnetic block, it can be magnetically positioned with the translation mounting frame 6, facilitating easy movement. The lifting fixed column 701 is inserted and fixed onto the movable support block 702. A threaded positioning rod 703 is threaded onto the side of the movable support block 702 and can be pressed against the lifting fixed column 701 for positioning and fixing. When the lifting fixed column 701 needs to be raised or lowered, simply rotate the threaded positioning rod 703 to adjust the tension, making it convenient to use. The bottom and sides of the lifting and adjusting column 7 are respectively equipped with magnetic bearing frames 704, which can magnetically position the horizontal moving measuring ruler 8 and the vertical moving measuring ruler 9 respectively. The horizontal moving measuring ruler 8 can be moved back and forth when magnetically attracted, and the forward and backward adjustment is convenient. The vertical moving measuring ruler 9 can be moved up and down, and the adjustment adaptability is good. Both the horizontal moving measuring ruler 8 and the vertical moving measuring ruler 9 are metal rulers, which are stable in magnetic positioning and convenient in lifting and adjusting, which facilitates high-precision auxiliary measurement and makes measurement convenient. The device can stably and horizontally suspend the subway track, providing good track laying assistance, facilitating construction, and enabling multi-directional measurement, which is convenient for high-precision positioning and laying of the auxiliary track, resulting in good construction assistance.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-precision positioning auxiliary measuring tool for subway track laying, comprising a support frame (1) and two measuring support platforms (2), characterized in that: The support frame (1) is installed on the top of the two measuring support platforms (2) on both sides of its bottom. The top of the support frame (1) is fitted with two lifting bearing seats (3), and the bottom of each of the two lifting bearing seats (3) is provided with a lifting hoist (4). A balance measuring plate (5) is provided between the lifting ends of the two lifting hoists (4). The front and rear sides of the support frame (1) are provided with translation mounting frames (6). The interior of each of the two translation mounting frames (6) is slidably engaged with a lifting adjustment column (7). The bottom of the lifting adjustment column (7) is equipped with a horizontal moving measuring ruler (8), and the side of the lifting adjustment column (7) is provided with a vertical moving measuring ruler (9).

2. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: Two measuring support platforms (2) are symmetrically installed on both sides of the support frame (1). Each of the four bottom corners of the two measuring support platforms (2) is provided with a movable roller (201), and each of the two measuring support platforms (2) is provided with a level measuring instrument (202) on its top.

3. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: Each of the two measuring support platforms (2) is provided with a support threaded tube (203) at its four corners. The support threaded tube (203) is threaded with a threaded lifting column (204) inside. The bottom end of the threaded lifting column (204) extends out of the support threaded tube (203) and is fixedly connected with a sharp corner anti-slip foot (205). The top of the threaded lifting column (204) is provided with an adjustment handle (206).

4. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: Two lifting support seats (3) are symmetrically slidably sleeved on the top of the support frame (1). Each of the two lifting support seats (3) is provided with a control cylinder (301) on the opposite side. Both control cylinders (301) are fixedly installed on the top of the support frame (1). A control switch (302) is provided on the side of the support frame (1). The control switch (302) is electrically connected to the control cylinder (301) and the lifting hoist (4) respectively.

5. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: The two lifting hoists (4) are respectively fixed to the bottom of the two lifting support seats (3). The lifting ends of the two lifting hoists (4) are provided with mounting plates (401). Strong magnetic electromagnets (402) are fixedly installed at the bottom of the two mounting plates (401). The two sides of the balance measuring plate (5) are respectively fixedly installed between the two mounting plates (401).

6. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: The balance measuring plate (5) is provided with an anti-deviation block (501) in the middle and a level (502) is provided on the top of the balance measuring plate (5).

7. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: The lifting adjustment column (7) includes a lifting fixed column (701) and a movable bearing block (702). The movable bearing block (702) is slidably engaged with the inner side of the translation mounting frame (6). The lifting fixed column (701) is inserted and slidably inserted into the inner side of the movable bearing block (702). The side of the movable bearing block (702) is threadedly connected to a threaded positioning rod (703) that is pressed against the lifting fixed column (701). The movable bearing block (702) is a hard magnetic block.

8. The high-precision positioning auxiliary measuring tool for subway track laying according to claim 1, characterized in that: The bottom and side of the lifting adjustment column (7) are respectively provided with magnetic bearing frames (704). The two magnetic bearing frames (704) respectively magnetically position the horizontal moving measuring ruler (8) and the vertical moving measuring ruler (9). The horizontal moving measuring ruler (8) and the vertical moving measuring ruler (9) are both metal rulers.

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