Measuring device for high-precision construction of subway track

Abstract

The utility model relates to the technical field of measuring devices, and discloses a measuring device for high-precision construction of a subway track, which comprises a total station main body, and a ball cup is fixedly mounted at the bottom of the total station main body; a base is arranged below the ball cup, a universal ball is fixed to the upper surface of the base, and a movable groove matched with the universal ball is formed in the bottom of the ball cup. A plurality of groups of ejector rods which are annularly arranged at equal intervals are arranged on the base in a sliding manner; a first spring is fixedly installed at the bottom of the ejector rod, and the other end of the first spring is fixedly connected with the base. According to the measuring device for the high-precision construction of the subway track, the total station main body can be leveled, limited and locked, the situation that the position deviation of the total station main body is affected by vibration generated in the construction of a subway tunnel is prevented, the horizontal precision is guaranteed, and the measuring requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically a measuring device for high-precision construction of subway tracks. Background Technology

[0002] With the acceleration of urbanization, subways, as an efficient and environmentally friendly public transportation tool, have been widely constructed and applied in major cities across my country. The construction quality of subway tracks directly affects the safety of subway operation and passenger comfort. Therefore, high-precision construction surveying of subway tracks is crucial to ensuring the quality of subway projects.

[0003] According to the public announcement (CN221094700U), a measuring device for high-precision construction of subway tracks is disclosed. This technology discloses that "it includes a bottom pad, a first telescopic rod fixedly connected to the top of the bottom pad, a second telescopic rod connected inside the first telescopic rod, and a measuring ruler connected to the outer wall of the first telescopic rod; the high-precision construction measuring device, through the technical solution of connecting the first telescopic rod and the second telescopic rod to the bottom pad, has the technical effect that the measuring instrument drives the rotating ball to move on the multi-claw block through the plumb block and maintains a horizontal state, which improves the accuracy of measurement, avoids the need for multiple adjustments by the staff, and greatly increases the practicality of the device."

[0004] While the above design uses a plumb bob to move a rotating ball on a multi-claw block and maintain a horizontal position, subway construction is usually carried out underground. Large machinery such as drilling rigs and excavators may be operating inside the tunnel. The vibrations of these machines will be transmitted to the measuring device through the ground, making it impossible to guarantee a stable connection between the rotating ball and the multi-claw block. This can easily lead to positional deviations, affecting measurement accuracy and reducing the effectiveness of the device. Therefore, we propose a measuring device for high-precision construction of subway tracks to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a measuring device for high-precision construction of subway tracks. It solves the problem that subway construction is usually carried out underground, and there may be large machinery such as drilling rigs and excavators operating in the tunnel. The vibration of these machines will be transmitted to the measuring device through the ground, making it impossible to ensure the stable connection between the rotating ball and the multi-claw block, which can easily lead to positional deviation and affect the measurement accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a measuring device for high-precision construction of subway tracks, comprising a total station body.

[0007] The total station is fixedly mounted on the bottom of its main body;

[0008] A base is provided below the ball head seat, a universal ball is fixed on the upper surface of the base, and a movable groove adapted to the universal ball is provided at the bottom of the ball head seat.

[0009] Multiple sets of top rods arranged in a ring at equal intervals slide on the base;

[0010] A first spring is fixedly installed at the bottom of the top rod, and the other end of the first spring is fixedly connected to the base.

[0011] Multiple sets of locking bolts are installed on the top edge of the base;

[0012] An electronic level is fixedly installed on the top of the total station body;

[0013] The base is equipped with a clamping mechanism on its edge surface, through which the device is fixedly installed on the tunnel support.

[0014] Preferably, the base has a movable groove adapted to the top rod, the top rod and the base are slidably connected through this movable groove, the number of locking bolts is adapted to the number of top rods, the edge surface of the base has a threaded hole adapted to the locking bolt, the locking bolt is screwed to the base through the threaded hole, and the threaded hole is connected to the movable groove.

[0015] Preferably, the base has a strip groove near the movable groove, and the strip groove is provided with an iron sheet. The iron sheet is fixedly connected to the base. The surface of the top rod has a rectangular groove that matches the strip groove, and a connecting plate is provided in the rectangular groove. An electromagnet is fixed on one side of the connecting plate.

[0016] Preferably, a limiting strip is fixed to the surface of the top rod, and a limiting groove adapted to the limiting strip is provided on the base, so that the limiting strip can slide within the limiting groove provided on the base.

[0017] Preferably, a telescopic rod arranged symmetrically is fixed between the connecting plate and the top rod, and a second spring is wound around the surface of the telescopic rod, with the two ends of the second spring being fixedly connected to the connecting plate and the top rod respectively.

[0018] Preferably, the clamping mechanism includes a mounting base fixed to the edge surface of the base and a threaded rod that rotates on the mounting base via a bearing. The threaded rod has opposite threaded teeth at both ends. The mounting base is provided with symmetrically arranged clamping plates. The two sets of clamping plates are threadedly connected to the opposite threaded teeth of the threaded rod through threaded holes. The mounting base is fixed with symmetrically arranged limiting rods. The clamping plates slide on the surfaces of the two sets of limiting rods through sliding holes.

[0019] Beneficial effects

[0020] This invention provides a measuring device for high-precision construction of subway tracks. Compared with the prior art, it has the following advantages:

[0021] This measuring device, used for high-precision construction of subway tracks, can level and lock the main body of the total station, preventing vibrations during subway tunnel construction from affecting the positional deviation of the main body of the total station, ensuring horizontal accuracy and meeting measurement requirements. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a partial sectional view of the overall structure of this utility model;

[0024] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0025] Figure 4 This is a left view of the overall structure of this utility model.

[0026] In the diagram: 101. Total station main body; 102. Ball head seat; 103. Universal ball; 104. Base; 105. Top rod; 106. Locking bolt; 107. Electronic level; 108. First spring; 109. Iron sheet; 110. Second spring; 111. Telescopic rod; 112. Connecting plate; 113. Electromagnet; 114. Limiting bar; 2. Clamping mechanism; 201. Mounting base; 202. Threaded rod; 203. Limiting rod; 204. Clamping plate. Detailed Implementation

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

[0028] like Figure 1 As shown:

[0029] A measuring device for high-precision construction of subway tracks includes a total station body 101.

[0030] In this implementation plan: The existing device {publication (announcement) number}: CN221094700U discloses a measuring device for high-precision construction of subway tracks. To solve the technical problems existing in this prior art, such as the background art disclosed above, "When the above design is used, although the plumb block drives the rotating ball to move on the multi-claw block and keep it in a horizontal state, subway construction is usually carried out underground, and there may be large machinery such as drilling rigs and excavators operating in the tunnel. The vibration of these machines will be transmitted to the measuring device through the ground, which cannot guarantee the stable connection between the rotating ball and the multi-claw block, which can easily lead to positional deviation, affect the measurement accuracy, and reduce the effectiveness of the device." In combination with the use, this problem is obviously a real and difficult problem to solve.

[0031] It should be noted that the total station 101 is a common model on the market, and will not be discussed in detail here.

[0032] Furthermore:

[0033] like Figures 1-4 As shown:

[0034] Based on the above: a ball head mount 102 is fixedly installed at the bottom of the total station body 101;

[0035] A base 104 is provided below the ball head seat 102, and a universal ball 103 is fixed on the upper surface of the base 104. A movable groove adapted to the universal ball 103 is provided at the bottom of the ball head seat 102.

[0036] Multiple sets of top rods 105 arranged in a ring at equal intervals slide on the base 104. The base 104 is provided with a moving groove that matches the top rods 105. The top rods 105 and the base 104 are slidably connected through this moving groove.

[0037] The base 104 has a strip groove near the moving groove, and the strip groove is provided with an iron plate 109. The iron plate 109 and the base 104 are fixedly connected. The surface of the top rod 105 has a rectangular groove that matches the strip groove, and a connecting plate 112 is provided in the rectangular groove. An electromagnet 113 is fixed on one side of the connecting plate 112.

[0038] A telescopic rod 111 arranged symmetrically is fixed between the connecting plate 112 and the top rod 105. A second spring 110 is wound around the surface of the telescopic rod 111, and the two ends of the second spring 110 are fixedly connected to the connecting plate 112 and the top rod 105 respectively.

[0039] A limiting strip 114 is fixed to the surface of the top rod 105, and a limiting groove adapted to the limiting strip 114 is provided on the base 104. The limiting strip 114 can slide in the limiting groove provided on the base 104.

[0040] A first spring 108 is fixedly installed at the bottom of the push rod 105, and the other end of the first spring 108 is fixedly connected to the base 104. A control button for controlling the electromagnet 113 is installed on the base 104.

[0041] A locking bolt 106 is installed on the top edge of the base 104 and corresponds to the top rod 105. The number of locking bolts 106 is matched with the number of top rods 105. The edge surface of the base 104 is provided with a threaded hole that matches the locking bolt 106. The locking bolt 106 is screwed to the base 104 through the threaded hole. The threaded hole is connected to the moving groove.

[0042] An electronic level 107 is fixedly installed on the top of the total station body 101;

[0043] A clamping mechanism 2 is installed on the edge surface of the base 104. The device is fixedly installed on the tunnel support by the clamping mechanism 2. The clamping mechanism 2 includes a mounting base 201 fixed on the edge surface of the base 104 and a threaded rod 202 that rotates on the mounting base 201 by a bearing. The two ends of the threaded rod 202 have opposite threaded teeth. The mounting base 201 is provided with symmetrically arranged clamping plates 204. The two sets of clamping plates 204 are respectively threaded to the opposite threads of the threaded rod 202 through the threaded holes. The mounting base 201 is fixed with symmetrically arranged limiting rods 203. The clamping plates 204 slide on the surface of the two sets of limiting rods 203 through the sliding holes.

[0044] In this implementation scheme: When in use, the device is first fixedly installed on the support frame (not shown in the figure) of the subway tunnel by the clamping mechanism 2 for the installation and fixation of the total station body 101. During this process, two sets of clamping plates 204 are clamped on the bracket. By screwing the threaded rod 202, the opposite threads at both ends of the threaded rod 202 are screwed to the two sets of clamping plates 204. While rotating the threaded rod 202, the two sets of clamping plates 204 are driven to move closer to each other, thereby achieving the clamping and fixing of the bracket. The clamping plates 204 can move on the limiting rod 203. The limiting rod 203 is used to limit the clamping plates 204 to ensure the stability of the movement of the clamping plates 204.

[0045] When adjusting the total station body 101 to be level, the level of the total station body 101 is monitored in real time by observing the electronic level 107 on the top of the total station body 101. By continuously swinging the total station body 101, the ball head 102 is driven to move through the movable groove on the universal ball 103 until the electronic level 107 shows a level state, thus determining that the total station body 101 is in a level state. The bottom of the top rod 105 is provided with a first spring 108. Through the rebound force of the first spring 108, the top rod 105 is driven to keep in contact with the bottom surface of the ball head 102. When the total station body 101 and the ball head 102 are in a level state, the electromagnet 113 is energized by pressing the control button on the base 104. The magnetism generated by the electromagnet 113 causes it to move closer to the iron plate 109, stretching the second spring 110 and the telescopic rod 111. The electromagnet 113 and the iron plate 109 are attracted and fixed. The friction generated by this temporarily locks the top rod 105.

[0046] A second spring 110 and a telescopic rod 111 are installed between the connecting plate 112 on one side of the electromagnet 113 and the push rod 105. The telescopic rod 111 ensures the stability of the movement of the connecting plate 112 and the electromagnet 113. At the same time, the second spring 110 does not affect the movement of the electromagnet 113, and ensures that when the electromagnet 113 is not energized, it does not contact the iron plate 109 with the cooperation of the second spring 110. Thus, when the push rod 105 moves, it avoids sliding friction caused by the contact between the electromagnet 113 and the iron plate 109.

[0047] After the top rod 105 is temporarily locked, the top rod 105 is pressed and locked by tightening the locking bolt 106. Then the electromagnet 113 can be de-energized to temporarily lock the top rod 105. After the locking bolt 106 has completely pressed and locked the top rod 105, the electromagnet 113 is de-energized to release the temporary lock of the top rod 105. This can prevent the total station body 101 and ball head seat 102 from shifting when the locking bolt 106 is tightened and locked to press and lock the top rod 105.

[0048] This solution can level and limit the total station body 101, preventing vibrations during subway tunnel construction from affecting the positional deviation of the total station body 101, ensuring horizontal accuracy and meeting measurement requirements.

[0049] It should be noted that both the electromagnet 113 and the electronic level 107 are powered by the battery of the total station body 101 itself.

[0050] The working principle and usage process of this utility model are as follows: In use, the device is first fixedly installed on the support frame (not shown in the figure) of the subway tunnel using the clamping mechanism 2. When adjusting the total station body 101 to be horizontal, the electronic level 107 on the top of the total station body 101 is used to monitor its horizontal state in real time. By continuously swinging the total station body 101, the ball head 102 moves along the movable groove on the universal ball 103 until the electronic level 107 displays a horizontal state, thus determining that the total station body 101 is in a horizontal state. A first spring 108 is provided at the bottom of the top rod 105. Through the rebound force of the first spring 108, the top rod 105 is driven to maintain contact with the bottom surface of the ball head 102. When the total station body 101 and the ball head 102 are in a horizontal state, the electromagnet 113 is energized by pressing the control button on the base 104. The electromagnet 113 generates... The magnetism causes it to move closer to the iron plate 109, stretching the second spring 110 and the telescopic rod 111. The electromagnet 113 is attracted and fixed to the iron plate 109, and the resulting friction temporarily locks the top rod 105. After the top rod 105 is temporarily locked, the top rod 105 is pressed and locked by tightening the locking bolt 106. Then the electromagnet 113 can be de-energized. The temporary locking of the top rod 105 is achieved by the electromagnet 113. After the locking bolt 106 has completely pressed and locked the top rod 105, the electromagnet 113 is de-energized again to release the temporary locking of the top rod 105. This can prevent the total station body 101 and the ball head seat 102 from shifting when the locking bolt 106 is tightened to press and lock the top rod 105. This solution can level and limit the locking of the total station body 101, preventing the vibration caused by the construction of the subway tunnel from affecting the position deviation of the total station body 101, ensuring the horizontal accuracy and meeting the measurement requirements.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A measuring device for high-precision construction of a subway track, comprising a total station main body (101), characterized in that: The utility model relates to a kind of tunnel surveying device, including: Total station main body (101), bottom fixed mounting has ball head seat (102); Base (104) is arranged below the ball head seat (102), the upper surface of the base (104) is fixed with universal ball (103), the bottom of the ball head seat (102) is provided with movable slot adapted to universal ball (103); Top rod (105) is provided with multiple groups, and is annular equidistant sliding on the base (104); First spring (108) is fixedly installed at the bottom of the top rod (105), and the other end of the first spring (108) is fixedly connected with the base (104); Locking bolt (106) is installed at the top of the edge of base (104), and corresponds with top rod (105); Electronic level (107) is fixedly installed at the top of the total station main body (101); Clamping mechanism (2) is installed on the edge surface of the base (104), and the device is fixedly installed on the tunnel support by the clamping mechanism (2).

2. The measuring device for high-precision construction of a subway track according to claim 1, characterized in that: The base (104) is provided with a moving slot adapted to the top rod (105), the top rod (105) and the base (104) are connected by sliding through the moving slot, the number of locking bolts (106) is adapted to the number of top rods (105), the edge surface of the base (104) is provided with a threaded hole adapted to the locking bolt (106), the locking bolt (106) is screwed with the base (104) through the threaded hole, and the threaded hole and the moving slot are connected.

3. The measuring device for high-precision construction of a subway track according to claim 2, characterized in that: The base (104) is provided with a strip-shaped slot near the moving slot, and the strip-shaped slot is provided with an iron sheet (109), the iron sheet (109) and the base (104) are fixedly connected, the surface of the top rod (105) is provided with a rectangular slot adapted to the strip-shaped slot, and the rectangular slot is provided with a connecting plate (112), one side of the connecting plate (112) is fixedly provided with an electromagnet (113).

4. The measuring device for high-precision construction of a subway track according to claim 3, characterized in that: The surface of the top rod (105) is fixedly provided with a limiting strip (114), the base (104) is provided with a limiting slot adapted to the limiting strip (114), and the limiting strip (114) can slide in the limiting slot of the base (104).

5. The measuring device for high-precision construction of a subway track according to claim 4, characterized in that: The connecting plate (112) and the top rod (105) are fixedly provided with a telescopic rod (111) arranged symmetrically, the surface of the telescopic rod (111) is provided with a second spring (110), and the two ends of the second spring (110) are fixedly connected with the connecting plate (112) and the top rod (105).

6. The measuring device for high-precision construction of a subway track according to claim 1, characterized in that: The clamping mechanism (2) comprises a mounting base (201) fixed on the edge surface of the base (104) and a threaded rod (202) rotating on the mounting base (201) through a bearing, the threaded teeth on the two ends of the threaded rod (202) are oppositely designed, the mounting base (201) is provided with clamping plates (204) arranged in symmetry, two groups of the clamping plates (204) are respectively threadedly connected on the opposite threaded teeth of the threaded rod (202) through the threaded holes, the mounting base (201) is fixedly provided with limiting rods (203) arranged in symmetry, and the clamping plates (204) slide on the surfaces of the two groups of limiting rods (203) through the sliding holes.

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