Tunnel foundation pit guide and survey device

Abstract

The present invention relates to the field of tunnel measurement technology, and in particular to a tunnel foundation pit measurement device, comprising a parallel detection device, a vertical detection device and a support frame, wherein the support frame is arranged above the foundation pit, the parallel detection device comprises a prism lens, the prism lens is arranged at the upper end of the support frame, and a measuring device aligns with the prism lens to measure the parallel position above the foundation pit; the vertical detection device comprises an adjustment component and a prism ball, the prism ball is connected to the lower end of the support frame through the adjustment component, the adjustment component can adjust the distance between the prism ball and the support frame, the prism ball consists of a plurality of triangular pyramids, the prism ball extends into the interior of the foundation pit through the adjustment component, and the measuring device can align with the prism ball at various positions in the foundation pit to measure the interior of the foundation pit.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel measurement, in particular to a tunnel foundation pit surveying device. Background Art

[0002] During tunnel construction, a foundation pit is dug below the ground. It is necessary to first measure the points above the tunnel at a parallel position above the tunnel, and then measure the points inside the foundation pit. The measurement method in the existing technology is to fix the bracket at the lower end of the prism lens, place the prism lens at the point to be measured, and use a measuring device to measure the position of the prism lens and obtain the result. This method is suitable for parallel positions in the tunnel. When measuring the foundation pit, the prism lens can only be lowered into the foundation pit to measure the position of the prism lens. However, since the prism lens and the measuring device only correspond to one measuring point at a time, when the measuring point is changed, the position of the prism lens needs to be continuously adjusted for measurement. Since the inside of the foundation pit is uneven, the position of the prism lens needs to be changed frequently, and the measuring device needs to be repositioned once each change, which not only greatly increases the construction period but also makes it difficult to avoid errors. Summary of the Invention

[0003] In view of the technical problems existing in the background technology, the purpose of the present invention is to provide a tunnel foundation pit surveying device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the technical solution provided by the present invention is:

[0005] A tunnel foundation pit measurement device includes a parallel detection device, a vertical detection device and a support frame, wherein the support frame is arranged above the foundation pit, the parallel detection device includes a prism lens, and the prism lens is arranged at the upper end of the support frame. The measuring device aligns with the prism lens to measure the parallel position above the foundation pit; the vertical detection device includes an adjustment component and a prism ball, wherein the prism ball is connected to the lower end of the support frame through the adjustment component, and the adjustment component can adjust the distance between the prism ball and the support frame. The prism ball is composed of a plurality of triangular pyramids, and the prism ball extends into the interior of the foundation pit through the adjustment component. The measuring device can align with the prism ball at various positions in the foundation pit to measure the interior of the foundation pit.

[0006] Preferably, the adjustment assembly includes a bracket, which is conical and hollow, and a rod is detachably provided on a parallel surface of the bracket, one end of the rod extends into the interior of the bracket, and the prism ball is connected to the rod.

[0007] Preferably, the adjustment assembly further includes a rotating wheel and a pull rope, wherein the pull rope is wound around the rotating wheel, one end of the pull rope is connected to the insertion rod, and the rotating wheel is rotatably arranged at the lower end of the support frame.

[0008] Preferably, a laser emitter is provided inside the bracket, and a light beam of the laser emitter is emitted from the tip of the bracket.

[0009] Preferably, it further comprises a steel plate, which is arranged in the foundation pit. The bracket is made of a magnetic material, and the bracket is aligned with the center point of the steel plate. The bracket and the steel plate are magnetically connected.

[0010] Preferably, a slot is provided on the support frame, the slot is arc-shaped, a support block is provided at the lower end of the prism lens, and the support block is rotatably connected in the slot.

[0011] Preferably, a connecting hole is provided on the support frame, the connecting hole is provided at the slot position, and the connecting hole and the slot are connected, a connecting ring is provided at the lower end of the support block, the connecting ring extends from the connecting hole, and the pull rope is passed through the connecting ring.

[0012] Preferably, a telescopic rod is detachably provided at one end of the support frame, and the telescopic rod includes a rod body and a sleeve. The sleeve is hollow, and the rod body is slidably connected in the sleeve. A plurality of bolts are provided on the sleeve, and the bolts pass through the sleeve and are connected to the rod body.

[0013] Preferably, a locking piece is further included, which is arranged between the rotating wheel and the connecting ring. The locking piece includes a locking block and an elastic piece. The locking block is arranged in a ring shape and is slidably connected to the support frame. One end of the elastic piece is arranged in the middle of the locking block, and the other end is arranged at the upper end of the support frame. The pull rope passes through the interior of the locking block.

[0014] Preferably, a storage part is further included, which is connected to the lower end of the support frame. The storage part includes a storage box, a storage rack I and a storage rack II. The storage rack I is arranged in the storage box, and the storage rack II is arranged in the storage box. The prism lens is snap-connected to the storage rack I, and the bracket is snap-connected to the storage rack II.

[0015] The present invention has the following advantages and beneficial effects:

[0016] In the present invention, the prism ball is composed of several triangular pyramids. The spherical structure is combined with multiple triangular pyramid units to realize omnidirectional light refraction or reflection in three-dimensional space. The prism ball is extended into the interior of the foundation pit through an adjustment component. The measuring device can be aligned with the prism ball at various positions in the foundation pit to measure the interior of the foundation pit. The parallel detection device can determine the plane position of the measuring device above the foundation pit, so that the plane position of the prism ball in the foundation pit is accurate, thereby enabling the measuring device to perform accurate measurements in the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic structural diagram of a tunnel foundation pit pilot survey device proposed by the present invention;

[0018] Figure 2 This is a front view of a tunnel foundation pit pilot survey device proposed by the present invention;

[0019] Figure 3 This is an exploded view of the connection between the prism lens and the support frame of the tunnel foundation pit pilot survey device proposed by the present invention;

[0020] Figure 4 This is an exploded diagram of the connection between the bracket and the prism ball of a tunnel foundation pit detection device proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of the positions of the parallel detection device and the vertical detection device of a tunnel foundation pit detection device proposed by the present invention;

[0022] Figure 6 for Figure 5 Partial enlarged view;

[0023] Figure 7 This is a cross-sectional view of the connection between the prism lens and the support frame of a tunnel foundation pit pilot survey device proposed by the present invention;

[0024] Figure 8 This is a cross-sectional view of a bracket of a tunnel foundation pit pilot survey device proposed by the present invention;

[0025] Figure 9 This is a schematic diagram of a receiving member of a tunnel foundation pit pilot survey device proposed by the present invention in an open state;

[0026] Figure 10 This is a schematic structural diagram of a storage rack II of a tunnel foundation pit pilot survey device proposed by the present invention;

[0027] Figure 11 This is a schematic diagram of the storage state of a tunnel foundation pit pilot survey device proposed by the present invention;

[0028] Figure 12 This is a schematic diagram of the working state of a tunnel foundation pit pilot survey device proposed by the present invention;

[0029] Figure 13 This is a working principle diagram of a tunnel foundation pit detection device proposed by the present invention.

[0030] Figure markings: 1-support frame, 101-slot, 102-connecting hole, 2-telescopic rod, 21-sleeve, 22-rod body, 23-locking bolt, 3-parallel detection device, 31-prism lens, 32-support block, 321-connecting ring, 4-prism ball, 41-hanging ring, 5-adjustment assembly, 51-rotating wheel, 52-pull rope, 53-bracket, 531-conical structure, 532-parallel surface, 54-insertion rod, 541-hook, 6-laser emitter, 7-locking piece, 71-locking block, 72-elastic piece, 8-storage piece, 81-storage box, 82-storage rack I, 83-storage rack II, 831-rotating shaft seat, 832-pressure plate, 833-torsion spring, 9-steel plate, A-measuring device. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] Example

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 、 Figure 11As shown, a tunnel foundation pit guide detection device includes a parallel detection device 3, a vertical detection device, a steel plate 9, a locking member 7, a storage member 8 and a support frame 1. The support frame 1 is arranged above the foundation pit, and one end of the support frame 1 is detachably provided with a telescopic rod 2. A through hole is provided on the support frame 1. The telescopic rod 2 includes a rod body 22 and a sleeve 21. The rod body 22 is inserted into the through hole. The rod body 22 and the support frame 1 are connected by bolts. The sleeve 21 is hollow and connected to the lower end of the rod body 22. The rod body 22 is slidably connected in the sleeve 21. The sleeve 21 is hollow and connected to the lower end of the rod body 22. The rod body 22 is slidably connected in the sleeve 21. 1 is provided with a plurality of locking bolts 23, which pass through the sleeve 21 and are connected to the rod 22. The rod 22 is pulled to slide in the sleeve 21, so that the overall height of the measuring device can be changed to adapt to different measuring positions. When the rod 22 is adjusted to a suitable position, the locking bolts 23 are screwed into the sleeve 21 so that the locking bolts 23 abut against the outer circumferential surface of the rod 22. The locking bolts 23 can fix the position of the rod 22 to prevent the rod 22 from sliding. After the locking bolts 23 are loosened on the rod 22, the rod 22 can be slid.

[0035] like Figure 1-Figure 3 、 Figure 5-Figure 7 、 Figure 9 、 Figure 11-13 As shown, the parallel detection device 3 includes a prism lens 31, which is arranged at the upper end of the support frame 1. The support frame 1 is provided with a card slot 101, and the card slot 101 is arranged in an arc shape. The lower end of the prism lens 31 is provided with a support block 32 by plugging. The support block 32 is rotatably connected in the card slot 101. The prism lens 31 is connected to the support frame 1 through the support block 32. When the prism lens 31 is connected to the card slot 101, the prism lens 31 can rotate with the card slot 101 as the axis, thereby achieving the effect of changing the angle of the prism lens 31. When measuring in the tunnel, The measuring device is placed at the position to be measured in the tunnel, and the parallel position in the tunnel can be measured by aligning the measuring device A and the prism lens 31. The measuring device A is a total station. In the prior art, when the measuring angle needs to be changed, the prism lens 31 can only be lifted, rotated, and then put down. Subsequently, the position of the prism lens 31 needs to be continuously fine-tuned, which is not only inefficient but also prone to errors. In the present invention, the measuring position can be changed by simply rotating the prism lens 31, and there is no need to frequently move the prism lens 31. It can not only meet more measurement needs but also reduce errors.

[0036] like Figure 1-Figure 5 、 Figure 8 、 Figure 9 、 Figure 12 、 Figure 13As shown, the vertical detection device includes an adjustment component 5 and a prism ball 4. The prism ball 4 is connected to the lower end of the support frame 1 through the adjustment component 5. The adjustment component 5 can adjust the distance between the prism ball 4 and the support frame 1. The prism ball 4 is composed of several triangular cones. The manufacturing material of the prism ball 4 is usually ordinary optical glass. The back of each triangular cone glass mirror needs to be coated to meet the total reflection requirement. The spherical structure is combined with multiple triangular cone units to realize omnidirectional light refraction or reflection in three-dimensional space. The prism ball 4 extends into the interior of the foundation pit through the adjustment component 5. The measuring device A can be aligned with the prism ball 4 at various positions in the foundation pit to measure the inside of the foundation pit.

[0037] like Figures 1-9 、 Figure 11 、 Figure 12 As shown, the adjustment component 5 includes a bracket 53, a rotating wheel 51 and a pull rope 52. The bracket 53 is conical and hollow. The bracket 53 includes a parallel surface 532 and a conical structure 531. The parallel surface 532 of the bracket 53 can be detachably connected to the conical structure 531 of the bracket 53 by bolts. A plug rod 54 is detachably provided on the parallel surface 532 of the bracket 53. The plug rod 54 and the bracket 53 are connected by threads. One end of the plug rod 54 extends into the bracket 53. The upper end of the prism ball 4 is provided with a ring 41. The end of the plug rod 54 extending into the bracket 53 is provided with a hook 541. When the plug rod 54 and the bracket 53 are connected, the hook 541 is connected to the ring 41, so that the prism ball 4 and the plug rod 54 are connected. 4, it is only necessary to first disassemble the parallel surface 532 of the bracket 53, put the prism ball 4 into the bracket 53, and then connect the parallel surface 532 and the conical structure 531, and finally hang the prism ball 4 on the insertion rod 54. Since the structure of the prism ball 4 is complex and the surface is fragile, the prism ball 4 is easy to collide with the conical structure 531 during the transportation of the measuring device, thereby affecting the surface quality of the prism ball 4 and causing errors in the measurement process. The overall structure is designed to be detachable. During transportation, the prism ball 4 and the bracket 53 are dismantled, and the prism ball 4 is transported separately. During measurement, the prism ball 4 and the bracket 53 are assembled, which greatly protects the structure of the prism ball 4 while ensuring the measurement accuracy, and is also convenient for disassembly and assembly.

[0038] like Figures 1-9 、 Figure 11 、 Figure 12As shown, the pull rope 52 is a flexible rope, which is wrapped around the rotating wheel 51. One end of the pull rope 52 is connected to the insertion rod 54. The pull rope 52 and the insertion rod 54 can be adhered by glue. The rotating wheel 51 is connected to the lower end of the support frame 1 through a plate, and the rotating wheel 51 can rotate inside the plate. The pull rope 52 can be tightened or loosened on the rotating wheel 51. The rotating wheel 51 is rotatably set at the lower end of the support frame 1. When the pull rope 52 is continuously tightened on the rotating wheel 51, the bracket 53 continuously moves toward the direction of approaching the support frame 1. When the pull rope 52 is continuously loosened on the rotating wheel 51, the bracket 53 continuously moves toward the direction away from the support frame 1. The movement of the prism ball 4 in the vertical direction is realized by rotating the rotating wheel 51.

[0039] like Figure 8 、 Figure 12 、 Figure 13 As shown, a laser emitter 6 is provided inside the bracket 53. The laser emitter 6 is a prior art and can be a laser emitter 6 of model M126E2-1LD. The laser emitter 6 emits a laser beam from one side. The tip of the bracket 53 has an opening. The beam of the laser emitter 6 is emitted from the tip of the bracket 53. When the bracket 53 is static, the beam of the laser emitter 6 is perpendicular to the ground. The steel plate 9 is set in the foundation pit. The bracket 53 is made of a magnetic material. The bracket 53 is aligned with the center point of the steel plate 9. There is a magnetic field between the bracket 53 and the steel plate 9. When the bracket 53 is continuously moved into the foundation pit by the pull rope 52, the laser emitter 6 emits a light beam on the steel plate 9. The worker observes the position of the laser beam and adjusts the position of the measuring device. When the light beam is located at the center of the steel plate 9, the measuring device is fixed. The laser emitter 6 is used to locate the position of the measuring device as a whole to make its measurement position accurate. When the bracket 53 is close to the steel plate 9, due to the magnetic force, the steel plate 9 keeps the bracket 53 stable and does not shake on the pull rope 52. It remains stable during measurement and can obtain more accurate measurement results.

[0040] like Figure 7As shown, the support frame 1 is provided with a connecting hole 102, which is provided at the position of the card slot 101, and the connecting hole 102 and the card slot 101 are communicated. The lower end of the support block 32 is provided with a connecting ring 321, which extends from the connecting hole 102. The pull rope 52 is passed through the connecting ring 321. When the prism lens 31 is connected to the position of the card slot 101, the connecting ring 321 extends from the connecting hole 102. The prism lens 31 is connected in a detachable manner. The purpose is also because the prism lens 31 has a complex structure and is a precision A precision instrument needs to ensure that its structure is not damaged to prevent errors during the measurement process. During transportation, the prism lens 31 is transported separately and assembled after arriving at the measurement location. This can greatly protect the safety of the prism lens 31 during transportation and prevent the prism lens 31 from being worn due to transportation. At the same time, the connecting ring 321 can support the pull rope 52, so that the pull rope 52 produces an angle perpendicular to the ground, and can also increase the tension of the pull rope 52, so that the bracket 53 can be more stable during the rising or falling process.

[0041] like Figure 6 When the lock body 7 is in the unlocking state, the locking member 7 is in the unlocking state, and the locking member 7 is in the unlocking state, and the locking member 7 is in the unlocking state. When the lock body 7 is unlocked, the locking member 7 is unlocked and the unlocking state is opened.

[0042] like Figure 9 、 Figure 10 、 Figure 11As shown, the storage member 8 is connected to the lower end of the support frame 1, and the storage member 8 includes a storage box 81, a storage rack I 82 and a storage rack II 83. The storage box 81 is a box structure that can be opened and closed at one end. The storage rack I 82 is arranged in the storage box 81, and the storage rack II 83 is arranged in the storage box 81. The prism lens 31 is clamped with the storage rack I 82. The storage rack I 82 is a plurality of Y-shaped structures. The lower end of the prism lens 31 is clamped on one of the storage racks I 82, and the lens position of the prism lens 31 is clamped on another storage rack I 82. The storage rack I 82 stably supports the prism lens 31. The bracket 53 and the storage rack II 83 are clamped. The storage rack II 83 includes a pressure plate 832, a rotating shaft seat 831 and a torsion spring 833. The rotating shaft seat 831 is connected in the storage box 81. The two ends of the pressure plate 832 are rotatably connected to the rotating shaft seat 831. The torsion spring 833 is arranged on the rotating shaft seat When the torsion spring 833 is not under stress, the pressure plate 832 is in a position close to the storage box 81. When the pressure plate 832 is pulled, the torsion spring 833 is compressed. When the pressure plate 832 is released, the torsion spring 833 is reset, so that the pressure plate 832 is in a position close to the storage box 81 again. When in use, the bracket 53 is placed in the storage box 81, and the pressure plate 832 is opened (rotated) first, and the parallel surface 532 of the bracket 53 is pressed against the storage box 81. The pressure plate 832 is lowered so that the pressure plate 832 abuts against the bracket 53. The storage rack I 82 fixes the prism lens 31 in the storage box 81, and the storage rack II 83 fixes the bracket 53 in the storage box 81. This can greatly reduce the volume of the detection device, making it efficient and fast to transport. At the same time, it can protect the prism lens 31 and the bracket 53, so that they remain stable during transportation and protect the overall quality of the structure.

[0043] Working principle: Place multiple measuring devices at a plane position above the foundation pit, place a measuring device A on the ground, align the measuring device A with each prism lens 31 respectively, and the measuring device A can obtain the position data of each measuring device through the prism lens 31, and then obtain the detailed point data above the foundation pit, turn on the laser emitter 6, so that the laser of the laser emitter 6 is vertically shot into the foundation pit, place multiple steel plates 9 under the foundation pit, determine the placement position of the steel plate 9 by the position of the laser, press the locking block 71 to separate the locking block 71 and the pull rope 52, rotate the rotating wheel 51, so that the pull rope 52 is relaxed on the rotating wheel 51, and the conical structure 531 gradually descends and approaches the steel plate 9. When the conical structure 531 approaches the steel plate 9, the pull rope 52 is gradually straightened due to the action of the magnetic force to prevent the prism ball 4 from shaking in the foundation pit, release the locking block 71, and the elastic member 72 is reset, so that the bottom of the locking block 71 and the support frame 1 are in close contact and the pull rope 52 is tightened. After the measurement inside and outside the foundation pit is completed, press the locking block 71 and rotate the rotating wheel 51 to retract the conical structure 531. When the conical structure 531 is close to the support frame 1, release the locking block 71 so that the conical structure 531 is fixed at a position close to the support frame 1, separate the insertion rod 54 and the parallel surface 532, and then separate the parallel surface 532 and the conical structure 531. Take out the prism ball 4 and store it separately, remove the pull rope 52 from the connecting ring 321, and then remove the support block 32 from the card slot 101. Snap the prism lens 31 into the storage rack Ⅰ82, snap the parallel surface 532 into the storage rack Ⅱ83, and close the storage box 81 to transport the entire measuring device safely and stably.

[0044] The present invention is only a preferred embodiment and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tunnel foundation pit surveying device, characterized by: The device comprises a parallel detection device, a vertical detection device and a support frame, wherein the support frame is arranged above the foundation pit, the parallel detection device comprises a prism lens, and the prism lens is arranged at the upper end of the support frame, and the measuring device aligns the prism lens to measure the parallel position above the foundation pit; The vertical detection device includes an adjustment component and a prism ball. The prism ball is connected to the lower end of the support frame through the adjustment component. The adjustment component can adjust the distance between the prism ball and the support frame. The prism ball is composed of a plurality of triangular pyramids. The prism ball extends into the interior of the foundation pit through the adjustment component. The measuring device can align with the prism ball at various positions in the foundation pit to measure the interior of the foundation pit; the adjustment component includes a bracket, the bracket is conical and hollow, and a rod is detachably provided on the parallel surface of the bracket. One end of the rod extends into the interior of the bracket, and the prism ball is connected to the rod; The adjustment component also includes a rotating wheel and a pull rope, the pull rope is wound around the rotating wheel, one end of the pull rope is connected to the insertion rod, and the rotating wheel is rotatably arranged at the lower end of the support frame; a laser emitter is arranged inside the bracket, and the light beam of the laser emitter is emitted from the tip of the bracket; it also includes a steel plate, which is arranged in the foundation pit, and the bracket is made of magnetic material, the bracket is aligned with the center point of the steel plate, and the bracket and the steel plate are magnetically connected.

2. The tunnel foundation pit surveying device according to claim 1, characterized in that: The support frame is provided with a card slot, which is arranged in an arc shape. The lower end of the prism lens is provided with a support block, and the support block is rotatably connected in the card slot.

3. The tunnel foundation pit surveying device according to claim 2, characterized in that: The support frame is provided with a connecting hole, which is arranged at the position of the card slot, and the connecting hole and the card slot are communicated. The lower end of the support block is provided with a connecting ring, which extends from the connecting hole, and the pull rope is passed through the connecting ring.

4. The tunnel foundation pit surveying device according to claim 1, characterized in that: A telescopic rod is detachably provided at one end of the support frame, and the telescopic rod includes a rod body and a sleeve. The sleeve is hollow, and the rod body is slidably connected in the sleeve. A plurality of locking bolts are provided on the sleeve, and the locking bolts pass through the sleeve and are connected to the rod body.

5. The tunnel foundation pit surveying device according to claim 4, characterized in that: It also includes a locking piece, which is arranged between the rotating wheel and the connecting ring. The locking piece includes a locking block and an elastic piece. The locking block is arranged in a ring shape and is slidably connected to the support frame. One end of the elastic piece is arranged in the middle of the locking block, and the other end is arranged at the upper end of the support frame. The pull rope passes through the interior of the locking block.

6. The tunnel foundation pit surveying device according to claim 1, characterized in that: It also includes a storage piece, which is connected to the lower end of the support frame. The storage piece includes a storage box, a storage rack I and a storage rack II. The storage rack I is arranged in the storage box, and the storage rack II is arranged in the storage box. The prism lens is snap-connected to the storage rack I, and the bracket is snap-connected to the storage rack II.

Images