Adjustable suspension device of tunnel side wall total station

Abstract

The utility model discloses an adjustable suspension device of a tunnel side wall total station. The adjustable suspension device comprises a connecting frame, a connecting shaft, a supporting assembly, a clamping assembly, an adjusting assembly, a fixing assembly and a shifting assembly. The connecting frame is mounted on the side wall of the tunnel; the connecting shaft is rotatably mounted on the connecting frame and movably connected with the shifting assembly mounted on the connecting frame, one ends of the pair of supporting assemblies are connected to the side, away from the connecting frame, of the connecting shaft, the clamping assembly is arranged between one ends of the pair of supporting assemblies, the adjusting assembly is arranged between the other ends of the pair of supporting assemblies, and the total station is mounted on the adjusting assembly. The fixing assembly is installed on one supporting assembly and movably connected with the adjusting assembly. The supporting assembly and the connecting shaft are located in the same plane, and the other end of the supporting assembly extends into the tunnel in a telescopic mode, so that the total station is adjustably installed in the tunnel. The utility model relates to the technical field of tunnel construction, and can solve the problem that a centering installation device in the prior art is inconvenient to adjust a total station.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field especially relates to a adjustable suspension device of tunnel side wall total station. BACKGROUND

[0002] When a new tunnel underpasses or overpasses an existing tunnel in operation, the existing tunnel in operation needs to be monitored for deformation, wherein vault settlement, tunnel convergence and other monitoring are generally calculated by using total station to measure monitoring point coordinates to obtain displacement. Such projects have very high requirements for measurement accuracy and monitoring frequency; the space on both sides of the tunnel is narrow, and there are many vehicles passing by, so it is necessary to fix the total station at a high position on the inner side wall of the tunnel for long-term monitoring. At present, the common method is to set a centering device on the side wall of the tunnel and install the total station on the centering device to fix the total station. In order to ensure the accuracy and reliability of the measurement results of the total station, it is necessary to ensure that the total station has a certain level on the centering device, and the center position of the field of view of the total station is aligned with the target area.

[0003] At present, the centering device of the prior art is usually manufactured and installed according to the design parameters obtained in advance for the tunnel, but in actual construction, due to the arc surface structure of the tunnel side wall, its structure is complex, and there may be errors in the installation of the tunnel inner segment, so it is often impossible to guarantee the installation accuracy of the point position and angle of the device at the designed position, thereby affecting the centering setting and measurement accuracy of the total station. At the same time, since the device is a customized structure, it cannot meet the adjustment requirements of the height, horizontal position and monitoring angle of the total station in the actual installation and use process, and the total station may need to be adjusted in position and angle due to disturbance in the long-term use process, and the entire device needs to be disassembled to determine the installation point position and angle again when adjusting, which is inconvenient to operate. Therefore, it is necessary to provide an adjustable suspension device for the total station on the side wall of the tunnel, which can solve the problem that the centering installation device is not convenient for adjusting the total station in the prior art. SUMMARY

[0004] The utility model discloses a purpose at providing a kind of adjustable suspension device of tunnel side wall total station, which can solve the problem that the centering installation device is not convenient for adjusting the total station in the prior art.

[0005] The utility model is implemented as follows:

[0006] The adjustable suspension device of the tunnel side wall total station comprises a connecting frame, a connecting shaft, support assemblies, a clamping assembly, an adjusting assembly, a fixing assembly and a pushing assembly; the connecting frame is fixedly installed on the tunnel side wall; the connecting shaft is rotatably installed on the side of the connecting frame far from the tunnel side wall and movably connected with the pushing assembly installed on the connecting frame; one end of each of the support assemblies is fixedly connected to the side of the connecting shaft far from the connecting frame; the clamping assembly is arranged between the one ends of the support assemblies; the adjusting assembly is arranged between the other ends of the support assemblies; the total station is installed on the adjusting assembly; and the fixing assembly is installed on one of the support assemblies and movably connected with the adjusting assembly; the support assemblies and the connecting shaft are located in the same plane; and the other ends of the support assemblies are telescopically extended into the tunnel, so that the total station is adjustably installed in the tunnel.

[0007] Each of the support assemblies comprises a square rod and a sliding sleeve rod; the square rod is a straight rod with a square cross section; one end of the square rod is fixedly connected to the connecting shaft, and the other end of the square rod extends into the tunnel; the sliding sleeve rod is a straight rod with a square ring cross section; the sliding sleeve rod is slidably matched with the square rod and slidably extended into the tunnel; the clamping assembly is movably clamped between the one ends of the sliding sleeve rods of the support assemblies; the adjusting assembly is arranged between the other ends of the sliding sleeve rods of the support assemblies; and the fixing assembly is arranged on the top of the sliding sleeve rod of one of the support assemblies.

[0008] The clamping assembly comprises a fixed strip, a pulling mechanism and a clamping plate; the fixed strip is fixedly connected between the one ends of the sliding sleeve rods of the support assemblies; the clamping plate is arranged on the fixed strip in an up-down manner through the pulling mechanism; a plurality of clamping grooves are formed in the square rod along the length direction; and the two ends of the clamping plate are matched and clamped in the clamping grooves of the square rod of the support assemblies.

[0009] The pulling mechanism comprises a sliding rod, a first limiting disc, a first spring, a connecting plate and a pulling rod; the sliding rod is vertically and slidably penetrated through the fixed strip; the upper end of the sliding rod is vertically and fixedly connected with the connecting plate; the lower end of the sliding rod is vertically and fixedly connected with the first limiting disc; the pulling rod is arranged on the top of the connecting plate; the first spring is sleeved on the sliding rod; the upper end of the first spring is fixedly connected with the middle bottom surface of the fixed strip; the lower end of the first spring is fixedly connected with the top surface of the first limiting disc; and the clamping plate is fixedly connected with the connecting plate.

[0010] The adjusting assembly comprises a connecting block, an inverted T-shaped rod, a placing disc and a connecting column; the connecting blocks are arranged on the other ends of the sliding sleeve rods of the support assemblies; the bottom ends of the inverted T-shaped rod are rotatably inserted into the connecting blocks; the top of the inverted T-shaped rod is vertically and fixedly connected with the placing disc; the total station is fixedly installed on the placing disc; the connecting column is coaxially and fixedly connected with one end of the bottom of the inverted T-shaped rod; and the fixing assembly is movably inserted into the connecting column.

[0011] The fixing assembly comprises a fastening rod and a plug-in mechanism; a plurality of connecting grooves are formed on the side wall of the cylindrical connecting column in a circumferential direction, the depth direction of the connecting grooves is consistent with the radial direction of the connecting column, the fastening rod is movably installed on the top of the sliding sleeve rod of one of the support assemblies through the plug-in mechanism, the axial direction of the fastening rod is perpendicular to the axial direction of the connecting column, and one end of the fastening rod can be matched and plugged into one of the connecting grooves.

[0012] The plug-in mechanism comprises a fixing block, a second limiting disc and a second spring; the fixing block is fixedly installed on the top of the sliding sleeve rod of one of the support assemblies, the fastening rod can slide through the fixing block in the axial direction of the sliding sleeve rod; the second limiting disc is vertically connected to the other end of the fastening rod, and the second spring is sleeved on the fastening rod, and the two ends of the second spring are connected to the second limiting disc and the fixing block respectively.

[0013] The dialing assembly comprises a gear, a mounting frame, a support strip, a threaded rod, a rotating disc and a rack; the mounting frame is fixedly installed at the bottom of the connecting frame, and a pair of gears are coaxially and fixedly connected to the two ends of the connecting shaft respectively; a vertical sliding slot is formed in the mounting frame, the threaded rod is rotatably arranged in the vertical sliding slot of the mounting frame, and the lower end of the threaded rod penetrates through the mounting frame and is coaxially and fixedly connected to the rotating disc; the middle part of the support strip is rotatably connected to the threaded rod through a threaded hole, so that the support strip can ascend and descend through the vertical sliding slot of the mounting frame; the length direction of the support strip is parallel to the length direction of the connecting shaft, and the two ends of the support strip are vertically and fixedly connected to the racks respectively, and the two racks are rotatably connected to the two gears respectively.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1、The utility model discloses a connecting shaft, support assembly, adjusting assembly and dialing assembly can utilize the screw transmission and meshing transmission of dialing assembly to drive the rotation of connecting shaft, thereby driving the synchronous rotation of support assembly, adjusting assembly and total station, realizing the height adjustment of total station, and utilizing the telescopic movement of the sliding sleeve rod of support assembly relative to square rod to realize the synchronous movement of adjusting assembly and total station, so that total station can be moved to the specified installation position in the tunnel, and the horizontal position adjustment demand of total station can be satisfied.

[0016] 2,The utility model discloses a fixing component can be inserted with the connecting groove on the connecting column through the fastening rod, is used for limiting the rotation of total station around the inverted T -shaped rod, thereby makes total station stable and keeps at the position after the rotation adjustment, can satisfy the flexible adjustment demand of total station simultaneously, is favorable to guarantee the installation precision and the measuring precision of total station. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the stereogram of the adjustable suspension device of the utility model tunnel side wall total station,

[0018] Figure 2 It is the connection schematic drawing of support subassembly and clamping assembly in the adjustable suspension device of the utility model tunnel side wall total station,

[0019] Figure 3 It is the connection schematic drawing of adjustment assembly and fixing component in the adjustable suspension device of the utility model tunnel side wall total station.

[0020] In the drawing, 1 connecting frame, 2 connecting hole, 3 connecting shaft, 4 support subassembly, 41 square pole, 42 sliding sleeve pole, 43 card slot, 5 clamping assembly, 51 fixed strip, 52 sliding rod, 53 first limit disc, 54 first spring, 55 connecting plate, 56 pull rod, 57 card plate, 6 adjustment assembly, 61 connecting block, 62 inverted T -shaped rod, 63 placement disc, 64 connecting column, 65 connecting groove, 7 fixing component, 71 fixed block, 72 fastening rod, 73 second limit disc, 74 second spring, 8 shift subassembly, 81 gear, 82 installation frame, 83 support strip, 84 threaded rod, 85 turntable, 86 rack. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and specific embodiment.

[0022] Please refer to the attached Figure 1The application discloses an adjustable suspension device of a tunnel side wall total station, which comprises a connecting frame 1, a connecting shaft 3, a supporting assembly 4, a clamping assembly 5, an adjusting assembly 6, a fixing assembly 7 and a pushing assembly 8. Connecting holes 2 are formed at the two ends of the connecting frame 1, so that the connecting frame 1 is fixedly installed on the tunnel side wall through the connecting holes 2 and connecting members. The connecting shaft 3 is rotatably installed on one side of the connecting frame 1 away from the tunnel side wall and is movably connected with the pushing assembly 8 installed on the connecting frame 1. One ends of a pair of the supporting assemblies 4 are movably connected with the connecting shaft 3 away from the connecting frame 1. The clamping assembly 5 is arranged between the one ends of the pair of the supporting assemblies 4. The adjusting assembly 6 is arranged between the other ends of the pair of the supporting assemblies 4. The total station is installed on the adjusting assembly 6. The fixing assembly 7 is installed on one of the supporting assemblies 4 and is movably connected with the adjusting assembly 6. The pair of the supporting assemblies 4 and the connecting shaft 3 are located in the same plane and rotate synchronously. The other ends of the pair of the supporting assemblies 4 are telescopically extended towards the inside of the tunnel, so that the total station can be adjustably installed in the tunnel.

[0023] Preferably, the connecting frame 1 is made of thick steel plate. The specification and size of the connecting frame 1 can be determined according to actual load requirements. The connecting holes 2 are formed in the connecting frame 1 for fixed installation of the connecting frame 1 at the designated position on the tunnel side wall. The two ends of the connecting shaft 3 are installed on the connecting frame 1 through rotating bearing seats and are movably connected with the pushing assembly 8. The connecting shaft 3 can be driven to rotate through the pushing assembly 8.

[0024] The pair of the supporting assemblies 4 are installed on the connecting shaft 3. When the connecting shaft 3 rotates, the pair of the supporting assemblies 4 can be driven to rotate synchronously, so that the total station installed on the pair of the supporting assemblies 4 through the adjusting assembly 6 can be driven to rotate upwards or downwards synchronously, thereby realizing height adjustment of the total station. The pair of the supporting assemblies 4 are extended towards the inside of the tunnel, thereby realizing horizontal position adjustment of the total station. The clamping assembly 5 is used for clamping and limiting the pair of the supporting assemblies 4, thereby positioning the horizontal position of the total station.

[0025] The adjusting assembly 6 is used for providing an installation platform for the total station and providing an angle rotating adjustment function for the total station to rotate upwards and downwards, so that the total station can be in a horizontal position or a certain angle to monitor the tunnel. The fixing assembly 7 is used for limiting the rotation of the adjusting assembly 6 through insertion, so that the total station can be kept at a corresponding angle, thereby guaranteeing the operation stability of the total station.

[0026] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2Each of the support assemblies 4 comprises a square rod 41 and a sliding sleeve rod 42; the square rod 41 is a straight rod with square cross section, one end of the square rod 41 is fixedly connected to the connecting shaft 3, and the other end of the square rod 41 extends into the tunnel; the sliding sleeve rod 42 is a straight rod with square ring cross section, and is slidably matched and sleeved on the square rod 41 and slidably extends into the tunnel; the clamping assembly 5 is installed between one end of the sliding sleeve rods 42 of the pair of support assemblies 4 and is movably clamped with the square rod 41; the adjusting assembly 6 is installed between the other end of the sliding sleeve rods 42 of the pair of support assemblies 4, and the fixing assembly 7 is installed on the top of the sliding sleeve rod 42 of one of the support assemblies 4.

[0027] The square structure of the square rod 41 and the square through hole in the sliding sleeve rod 42 can realize the sleeving and relative axial sliding of the square rod 41 and the sliding sleeve rod 42 without relative rotation, and the length of the square rod 41 and the sliding sleeve rod 42 can be adaptively adjusted according to actual installation requirements, so that the total station can be moved to the required installation position when the sliding sleeve rod 42 slides relative to the square rod 41 and has a certain transverse adjustment range.

[0028] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The clamping assembly 5 comprises a fixed strip 51, a pulling mechanism and a clamping plate 57, the fixed strip 51 is fixedly connected between one end of the sliding sleeve rods 42 of the pair of support assemblies 4, and the middle part of the clamping plate 57 is liftably arranged on the fixed strip 51 by the pulling mechanism; a plurality of clamping grooves 43 are formed on the square rod 41 along the length direction, and the two ends of the clamping plate 57 can be matched and clamped in the clamping grooves 43 of the square rod 41 of the pair of support assemblies 4, respectively.

[0029] The fixed strip 51 is fixed between one end of the sliding sleeve rods 42 of the pair of support assemblies 4, so that the pair of sliding sleeve rods 42 can slide synchronously. The clamping plate 57, the pulling mechanism and the fixed strip 51 slide synchronously with the pair of sliding sleeve rods 42, the number and arrangement interval of the clamping grooves 43 on the square rod 41 can be adaptively adjusted according to actual adjustment requirements, the slot width of the clamping grooves 43 is slightly larger than the thickness of the clamping plate 57, and the plate surface direction of the clamping plate 57 is perpendicular to the axial direction of the sliding sleeve rod 42, so that the end part of the clamping plate 57 can limit the sliding of the sliding sleeve rod 42 when inserted into the clamping grooves 43.

[0030] Please refer to the accompanying drawings Figure 2The middle part of the fixed strip 51 is formed with a sliding through hole, the sliding rod 52 vertically penetrates the fixed strip 51 through the sliding through hole, the upper end of the sliding rod 52 is vertically fixedly connected with the connecting plate 55, and the lower end of the sliding rod 52 is vertically fixedly connected with the first limiting disc 53; the pull rod 56 is installed on the top of the connecting plate 55, the first spring 54 is sleeved on the sliding rod 52, the upper end of the first spring 54 is fixedly connected with the bottom surface of the middle part of the fixed strip 51, and the lower end of the first spring 54 is fixedly connected with the top surface of the first limiting disc 53; the middle part of the clamping plate 57 is fixedly connected with the connecting plate 55.

[0031] Preferably, the first spring 54 is always in a slightly stretched state, so that the first spring 54 applies a downward thrust force to the first limiting disc 53, the thrust force is transmitted to the connecting plate 55 and the clamping plate 57 through the sliding rod 52, so that the end part of the clamping plate 57 is stably clamped in the clamping groove 43, the accidental disengagement is prevented, and the locking of the sliding sleeve rod 42 can be ensured.

[0032] When the horizontal position needs to be adjusted, the sliding rod 52 can be pulled upward through the pull rod 56, so that the first spring 54 is compressed and the end part of the clamping plate 57 is disengaged from the clamping groove 43, the locking of the sliding sleeve rod 42 is released. The sliding sleeve rod 42 can slide relative to the square rod 41 by pushing the pull rod 56, so that the horizontal position adjustment function of the total station is realized.

[0033] When the sliding sleeve rod 42 and the square rod 41 are rotated to an inclined angle with the connecting shaft 3, the sliding of the sliding sleeve rod 42 can simultaneously realize the adjustment of the horizontal and height positions of the total station, and the adjustment of the height of the total station can be realized by cooperation of the sliding sleeve rod 42 and the connecting shaft 3. When the sliding sleeve rod 42 and the square rod 41 are in a horizontal position, the sliding of the sliding sleeve rod 42 only adjusts the horizontal position of the total station.

[0034] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 3 The adjusting assembly 6 includes a connecting block 61, an inverted T-shaped rod 62, a placing disc 63 and a connecting column 64; a pair of connecting blocks 61 are respectively arranged on the other ends of the sliding sleeve rods 42 of the pair of supporting assemblies 4, the bottom two ends of the inverted T-shaped rod 62 are rotatably inserted into the pair of connecting blocks 61, the top of the inverted T-shaped rod 62 is vertically fixedly connected with the placing disc 63, and the total station is fixedly installed on the placing disc 63; the connecting column 64 is coaxially fixedly connected with one end of the bottom of the inverted T-shaped rod 62, and the fixed assembly 7 is movably inserted into the connecting column 64.

[0035] The placing disc 63 serves as a platform for installation of the total station, and the placing disc 63 drives the total station to rotate. Since the adjusting assembly 6 rotates synchronously with the sliding sleeve rod 42, after the sliding sleeve rod 42 rotates, the monitoring angle of the total station changes, and it may be necessary to rotate and adjust the monitoring angle of the total station.

[0036] One end of the connecting block 61 is fixedly connected with the other end of the sliding sleeve rod 42, and the other end of the connecting block 61 is provided with a rotating through hole for inserting the bottom two ends of the inverted T-shaped rod 62, the inverted T-shaped rod 62 can rotate relative to the connecting block 61, thereby driving the placing disc 63 fixedly connected therewith and the total station instrument fixedly installed on the placing disc 63 to rotate, so that the total station instrument rotates around the bottom rod of the inverted T-shaped rod 62, and the monitoring angle adjustment of the total station instrument is realized.

[0037] The connecting column 64 rotates synchronously with the inverted T-shaped rod 62, and the limiting rotation function of the inverted T-shaped rod 62 is realized through the insertion and cooperation of the connecting column 64 and the fixed assembly 7.

[0038] Please refer to the accompanying drawings Figure 3 The fixed assembly 7 comprises a fastening rod 72 and an insertion mechanism, a plurality of connecting grooves 65 are formed on the sidewall of the cylindrical connecting column 64 in a circumferential direction, the depth direction of the connecting groove 65 is consistent with the radial direction of the connecting column 64, the fastening rod 72 is movably installed on the top of the sliding sleeve rod 42 of one set of support assemblies 4 through the insertion mechanism, the axial direction of the fastening rod 72 is perpendicular to the axial direction of the connecting column 64, so that one end of the fastening rod 72 can be inserted into one of the connecting grooves 65.

[0039] The fastening rod 72 can move linearly along the length direction of the sliding sleeve rod 42 through the insertion mechanism, when the fastening rod 72 is inserted into one of the connecting grooves 65, the axial direction of the fastening rod 72 is perpendicular to the axial direction of the connecting column 64, so that the rotation of the connecting column 64 can be limited, thereby limiting the rotation function of the inverted T-shaped rod 62, and further ensuring the installation stability of the total station instrument and avoiding accidental rotation. When the fastening rod 72 is out of the connecting groove 65, the limitation on the connecting column 64 is removed, so that the angle rotation adjustment function of the total station instrument can be realized.

[0040] Preferably, the diameter of the connecting column 64 and the hole diameter, number and arrangement spacing of the connecting grooves 65 on the connecting column 64 can be adaptively adjusted according to the rotation adjustment requirements of the total station instrument, so as to meet the installation and application requirements of the total station instrument.

[0041] Please refer to the accompanying drawings Figure 3 The insertion mechanism comprises a fixed block 71, a second limiting disc 73 and a second spring 74, the fixed block 71 is fixedly installed on the top of the sliding sleeve rod 42 of one set of support assemblies 4, the fastening rod 72 can slidably penetrate the fixed block 71 along the axial direction of the sliding sleeve rod 42, the second limiting disc 73 is vertically connected to the other end of the fastening rod 72, and the second spring 74 is sleeved on the fastening rod 72, and the two ends of the second spring 74 are connected to the second limiting disc 73 and the fixed block 71 respectively.

[0042] The fixed block 71 is fixed on the sliding sleeve rod 42, and a through hole consistent with the length direction of the sliding sleeve rod 42 is formed on the fixed block 71, for penetrating the fastening rod 72, so that the fastening rod 72 can only slide along the length direction of the sliding sleeve rod 42 through the through hole.

[0043] When the fastening rod 72 is pulled to move away from the connecting column 64 by the second limiting disc 73, the second spring 74 is compressed to store power, so that the fastening rod 72 is separated from the connecting groove 65 to rotate the total station instrument. After the second limiting disc 73 is released, the fastening rod 72 is moved to the connecting column 64 by the elastic force of the second spring 74 and is inserted into the connecting groove 65 at the corresponding position, for locking the connecting column 64 to fix the total station instrument.

[0044] Please refer to the accompanying drawings Figure 1 , the dialing assembly 8 comprises a gear 81, a mounting frame 82, a support strip 83, a threaded rod 84, a rotating disc 85 and a rack 86; the mounting frame 82 is fixedly installed on the bottom of the connecting frame 1, and a pair of gears 81 are coaxially and fixedly connected at the two ends of the connecting shaft 3 respectively; a vertical sliding slot is formed in the mounting frame 82, the threaded rod 84 is rotatably arranged in the vertical sliding slot of the mounting frame 82 through a rotating bearing, and the lower end of the threaded rod 84 penetrates through the mounting frame 82 and is coaxially and fixedly connected with the rotating disc 85; the middle part of the support strip 83 is rotatably connected with the threaded rod 84 through a threaded through hole, so that the support strip 83 can be vertically arranged in the vertical sliding slot of the mounting frame 82; the length direction of the support strip 83 is parallel to the length direction of the connecting shaft 3, and the two ends of the support strip 83 are vertically and fixedly connected with the racks 86 respectively, and the two racks 86 are meshingly and drivingly connected with the two gears 81 respectively.

[0045] Preferably, the support strip 83 can be made of a square tube, the width of the vertical sliding slot is slightly larger than the width of the support strip 83, and the length of the support strip 83 is consistent with the distance between the two gears 81, so that the rack 86 can be meshingly and drivingly connected with the gear 81. The height of the vertical sliding slot can be adaptively adjusted according to the height adjustment requirement of the total station instrument, and the vertical sliding slot is used for guiding and limiting the lifting of the support strip 83.

[0046] The threaded rod 84 can be rotated through the rotating disc 85, and under the limiting action of the threaded transmission and the vertical sliding slot, the rotating movement of the threaded rod 84 is converted into the linear movement of the support strip 83 along the axial direction of the threaded rod 84, so as to drive the two racks 86 at the two ends to synchronously lift. The rack 86 is meshingly and drivingly connected with the gear 81 during lifting, and the gear 81 drives the connecting shaft 3 to synchronously rotate when rotating, so as to realize the upward or downward rotating function of the two support assemblies 4 around the axis of the connecting shaft 3, and further realize the height adjustment of the total station instrument.

[0047] Please refer to the accompanying drawings Figure 1 to Figure 3 , the mounting and adjusting method and the working principle of the utility model are:

[0048] The connecting frame 1 is fixedly installed at the designated installation position of the tunnel side wall through two high-strength bolts or the like connecting members via the connecting holes 2 at both ends, and the connecting shaft 3 is coaxially installed with the gear 81 through the rotating bearing seat at both ends of the connecting frame 1. The square rods 41 of the pair of support assemblies 4 are respectively fixedly connected to the connecting shaft 3, and the other ends of the pair of support assemblies 4 extend into the tunnel. The total station is installed on the other end of the pair of support assemblies 4 via the adjusting assembly 6 and the fixing assembly 7, and is used for monitoring the tunnel.

[0049] When the position of the total station needs to be adjusted, the rotating disc 85 is manually rotated to synchronously rotate the threaded rod 84, the width of the vertical sliding groove is slightly larger than the width of the support strip 83, and is used for limiting the rotation of the support strip 83, so that the support strip 83 is lifted and lowered in the vertical sliding groove along the axial direction of the threaded rod 84 through the threaded transmission.

[0050] The pair of racks 86 are synchronously lifted and lowered with the support strip 83 and mesh with the pair of gears 81, the pair of gears 81 are rotated to synchronously rotate the connecting shaft 3, and the connecting shaft 3 is used for synchronously rotating the square rod 41 fixedly connected thereto. Through the forward or reverse rotation of the rotating disc 85, the square rod 41 can be controlled to rotate upward or downward about the axis of the connecting shaft 3, and is used for adjusting the installation height of the total station. After adjustment, the connecting shaft 3 is stably kept at the corresponding angle through the threaded engagement between the threaded rod 84 and the support strip 83, so that the total station is kept at the corresponding installation height.

[0051] The slide rod 52 is pulled upward through the pull rod 56, the both ends of the clamping plate 57 are separated from the clamping groove 43 of the square rod 41, the pull rod 56 is pushed upward and the first spring 54 is compressed, the pair of slide sleeve rods 42 are slid relative to the square rod 41, the adjusting assembly 6 is synchronously pushed into the tunnel with the pair of slide sleeve rods 42, and is used for adjusting the installation position of the total station in the tunnel. After adjustment, the pull rod 56 is released, the slide rod 52 is moved downward through the elastic force of the first spring 54 and the both ends of the clamping plate 57 are synchronously moved downward, the both ends of the clamping plate 57 are located in the clamping groove 43 at the corresponding position of the square rod 41, and are used for limiting the sliding of the slide sleeve rod 42, so that the total station is kept at the corresponding horizontal position.

[0052] When adjusting the installation angle of the total station, the second limiting plate 73 pulls the fastening rod 72 away from the connecting column 64, compressing the second spring 74. This causes the fastening rod 72 to disengage from the connecting groove 65. Rotating the placement plate 63 causes the inverted T-shaped rod 62 to rotate relative to the pair of connecting blocks 61. The connecting column 64 rotates synchronously with the inverted T-shaped rod 62, thus adjusting the rotation angle of the total station around the bottom member of the inverted T-shaped rod 62. After adjustment, the second limiting plate 73 is released, and the elastic force of the second spring 74 moves the fastening rod 72 closer to the connecting column 64, inserting the end of the fastening rod 72 into the corresponding connecting groove 65 on the connecting column 64. Because the axis of the fastening rod 72 is perpendicular to the axis of the connecting column 64, the fastening rod 72 is restricted by the fixing block 71 and cannot rotate. Therefore, the rotation of the connecting column 64 is restricted by the fastening rod 72, ensuring the total station remains at the corresponding monitoring angle.

[0053] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An adjustable suspension device for a total station on a tunnel sidewall, characterized in that: The system includes a connecting frame (1), a connecting shaft (3), a support assembly (4), a snap-fit ​​assembly (5), an adjustment assembly (6), a fixing assembly (7), and a toggle assembly (8). The connecting frame (1) is fixedly installed on the tunnel sidewall. The connecting shaft (3) is rotatably installed on the side of the connecting frame (1) away from the tunnel sidewall and is movably connected to the toggle assembly (8) installed on the connecting frame (1). One end of a pair of support assemblies (4) is fixedly connected to the side of the connecting shaft (3) away from the connecting frame (1). The snap-fit ​​assembly (5) is located between one end of a pair of support assemblies (4). The adjustment assembly (6) is located between the other ends of a pair of support assemblies (4). The total station is installed on the adjustment assembly (6). The fixing assembly (7) is installed on one of the support assemblies (4) and is movably connected to the adjustment assembly (6). The pair of support assemblies (4) and the connecting shaft (3) are located in the same plane. The other end of the pair of support assemblies (4) extends telescopically into the tunnel, allowing the total station to be installed in an adjustable manner inside the tunnel.

2. The adjustable suspension device for the tunnel sidewall total station according to claim 1, characterized in that: Each set of support components (4) includes a square rod (41) and a sliding sleeve rod (42); the square rod (41) is a straight rod with a square cross-section, one end of which is fixedly connected to the connecting shaft (3), and the other end of which extends into the tunnel; the sliding sleeve rod (42) is a straight rod with a square ring cross-section, which is slidably fitted onto the square rod (41) and extends slidably into the tunnel; the snap-fit ​​component (5) is installed between one end of the sliding sleeve rod (42) of a pair of support components (4) and is movably snapped into the square rod (41); the adjustment component (6) is installed between the other ends of the sliding sleeve rod (42) of a pair of support components (4), and the fixing component (7) is installed on the top of the sliding sleeve rod (42) of one set of support components (4).

3. The adjustable suspension device for the tunnel sidewall total station according to claim 2, characterized in that: The snap-fit ​​assembly (5) includes a fixing strip (51), a pull-out mechanism, and a snap-fit ​​plate (57). The fixing strip (51) is fixedly connected between one end of the sliding sleeve rod (42) of a pair of support assemblies (4). The snap-fit ​​plate (57) is raised and lowered on the fixing strip (51) through the pull-out mechanism. Several snap-fit ​​slots (43) are formed at intervals along the length direction on the square rod (41). The two ends of the snap-fit ​​plate (57) can be matched and snapped into the snap-fit ​​slots (43) of the square rod (41) of a pair of support assemblies (4).

4. The adjustable suspension device for the tunnel sidewall total station according to claim 3, characterized in that: The pull-out mechanism includes a slide rod (52), a first limiting plate (53), a first spring (54), a connecting plate (55), and a pull rod (56); the slide rod (52) can slide vertically through the fixing strip (51), the upper end of the slide rod (52) is vertically fixed to the connecting plate (55), and the lower end of the slide rod (52) is vertically fixed to the first limiting plate (53); the pull rod (56) is installed on the top of the connecting plate (55), the first spring (54) is sleeved on the slide rod (52), the upper end of the first spring (54) is fixedly connected to the middle bottom surface of the fixing strip (51), and the lower end of the first spring (54) is fixedly connected to the top surface of the first limiting plate (53); the locking plate (57) is fixedly connected to the connecting plate (55).

5. The adjustable suspension device for the tunnel sidewall total station according to claim 2, characterized in that: The adjustment component (6) includes a connecting block (61), an inverted T-shaped rod (62), a placement plate (63), and a connecting column (64). A pair of connecting blocks (61) are respectively set on the other end of the sliding sleeve rod (42) of a pair of support components (4). The bottom ends of the inverted T-shaped rod (62) are rotatably inserted into the pair of connecting blocks (61). The top of the inverted T-shaped rod (62) is vertically fixed to the placement plate (63). The total station is fixedly installed on the placement plate (63). The connecting column (64) is coaxially fixed to one end of the bottom of the inverted T-shaped rod (62). The fixing component (7) is movably inserted into the connecting column (64).

6. The adjustable suspension device for the tunnel sidewall total station according to claim 5, characterized in that: The fixing component (7) includes a fastening rod (72) and a plugging mechanism; a number of connecting grooves (65) are formed circumferentially on the side wall of the cylindrical connecting column (64), the depth direction of the connecting grooves (65) is consistent with the radial direction of the connecting column (64), the fastening rod (72) is movably installed on the top of the sliding sleeve rod (42) of one of the support components (4) through the plugging mechanism, the axial direction of the fastening rod (72) is perpendicular to the axial direction of the connecting column (64), so that one end of the fastening rod (72) can be matched and plugged into one of the connecting grooves (65).

7. The adjustable suspension device for a tunnel sidewall total station according to claim 6, characterized in that: The insertion mechanism includes a fixing block (71), a second limiting plate (73), and a second spring (74); the fixing block (71) is fixedly installed on the top of the sliding sleeve rod (42) of one of the support components (4), and the fastening rod (72) slides through the fixing block (71) along the axial direction of the sliding sleeve rod (42); the second limiting plate (73) is vertically fixed to the other end of the fastening rod (72), and the second spring (74) is fitted on the fastening rod (72), and the two ends of the second spring (74) are respectively connected to the second limiting plate (73) and the fixing block (71).

8. The adjustable suspension device for a tunnel sidewall total station according to claim 1, characterized in that: The actuating assembly (8) includes a gear (81), a mounting frame (82), a support bar (83), a threaded rod (84), a turntable (85), and a rack (86); the mounting frame (82) is fixedly mounted on the bottom of the connecting frame (1), and a pair of gears (81) are coaxially fixed to both ends of the connecting shaft (3); a vertical groove is formed inside the mounting frame (82), and the threaded rod (84) is rotatably disposed in the vertical groove of the mounting frame (82). The lower end of the support bar (83) passes through the mounting frame (82) and is coaxially fixed to the turntable (85); the middle part of the support bar (83) is screwed to the threaded rod (84) through the threaded through hole, so that the support bar (83) can be lifted and passed through the vertical slide groove of the mounting frame (82); the length direction of the support bar (83) is parallel to the length direction of the connecting shaft (3), and the two ends of the support bar (83) are respectively vertically fixed to the rack (86), and a pair of racks (86) are respectively meshed with a pair of gears (81) for transmission.

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