Measurement auxiliary support

Abstract

The invention relates to the technical field of measurement auxiliary equipment, and discloses a measurement auxiliary support which comprises a supporting leg assembly and an instrument fixing assembly, the supporting leg assembly comprises a mounting plate and a sliding rod, a plurality of supporting legs are hinged to the bottom end of the mounting plate, each supporting leg comprises an outer rod sleeve and an inner rod, one end of each supporting leg is provided with a supporting pad, and the outer rod sleeves are sleeved with the inner rods. The supporting pad is connected with the supporting leg through a folding mechanism composed of a damper and an inner rod which are hinged. An azimuth rotating support is arranged at the top end of the mounting plate, a pitching support is in threaded connection with the top end of the azimuth rotating support, and an azimuth rotating shaft, a rotating shaft rod, an azimuth buffer spring and an azimuth rotating sleeve are arranged in the azimuth rotating support. The included angle between the rolling wheel and the supporting rod is adjusted through the folding mechanism, so that the rolling wheel serves as a transfer tool, meanwhile, energy generated when the rolling wheel collides with foreign matter is absorbed through the damper, and then ground vibration can be filtered when an orientation rotating shaft and a rotating shaft rod serve as an orientation rotating support to conduct core work of orientation rotation; and the interference of the outside to the measurement result is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of measurement auxiliary equipment, in particular to a measurement auxiliary bracket. Background Art

[0002] Building Information Modeling is a new tool for architecture, engineering and civil engineering. The term Building Information Modeling or Building Information Modeling was coined by Autodesk to describe computer-aided designs that are mainly three-dimensional, object-oriented, and related to architecture. The project cost is the construction price of the project, which refers to the total cost of carrying out a certain project construction. At present, when calculating the project cost, it is often necessary to go to the construction site to measure the data on site, and then input the data measured on site into the corresponding BIM program for calculation and result.

[0003] When workers enter the construction site for on-site measurement, there are still some problems with the existing auxiliary devices for engineering cost measurement devices. 1. There are many tools to carry, which makes it inconvenient to carry and transport when entering the construction site for measurement. 2. The operation of many heavy vehicles and machinery on the construction site will cause ground vibration, which will interfere with leveling and measurement results during measurement. Summary of the invention

[0004] The object of the present invention is to provide a measurement auxiliary bracket which can solve the problems raised in the above-mentioned background technology by hingedly connecting a support pad at the bottom end of a support leg and adjusting the angle between the support pad and the support leg so that the support pad can also be used as a transfer roller when completing the support, thereby reducing the difficulty of transfer.

[0005] To achieve the above purpose, a measurement auxiliary bracket is provided, including a leg assembly and an instrument fixing assembly, the leg assembly including a mounting plate and a sliding rod, the sliding rod passes through the mounting plate, a plurality of support legs are hinged at the bottom end of the mounting plate, the support leg includes an outer rod sleeve and an inner rod, and also includes a support pad arranged at the other end of the support leg, the support pad includes a roller, and the support pad is hinged to the support leg; a hollow support rod is provided on the outer side of the sliding rod away from the end of the mounting plate, a hollow extrusion disk is provided on the outer side of the sliding rod away from the end of the hollow support rod, a support disk is provided at the top of the sliding rod, and an instrument mounting frame is provided at the top of the support disk.

[0006] Furthermore, the roller includes a rotating shaft, which is arranged on one side of the roller, and also includes a connecting rod, which is connected to the rotating shaft through a pin, and the connecting rod is hinged to the inner rod at an end away from the roller.

[0007] Furthermore, the connecting rod is a damper, which includes a damping rod, one end of which is connected to the rotating shaft of the roller through a pin shaft, and also includes a spring sleeved on the outside of the damping rod, and also includes a hinged mounting cover, which is arranged at the top of the damping rod, and a hinged seat is provided at the top of the hinged mounting cover, a secondary support sleeve is provided on the outside of the inner rod near the end of the hinged seat, a partition plate is provided in the secondary support sleeve, and the partition plate divides the secondary support sleeve into a support chamber and a power chamber, an electric telescopic rod is provided in the power chamber, and a secondary support leg is provided in the secondary support sleeve, one end of the secondary support leg is conical, and the secondary support leg is connected to the electric telescopic rod through a pin shaft away from the conical end.

[0008] Furthermore, the articulated seat includes a sliding fixed sleeve, which is in the shape of a square cylinder, and a set of parallel wall surfaces of the sliding fixed sleeve are provided with sliding grooves, and also includes a sliding sleeve, which is arranged inside the sliding fixed sleeve, and a sliding lever that slides with the sliding groove is provided on the outer side of the sliding sleeve, and the sliding lever is integrally connected with the sliding sleeve, and also includes a buffer damper, which is arranged in the sliding groove, and one end of the buffer damper is connected to the sliding lever, and also includes a limit plate, which is in the shape of a ring, and the limit plate is arranged on the sliding sleeve. Away from the end of the sliding fixed sleeve, the limit plate is integrally connected with the sliding sleeve, a gear section is provided on the limit plate, and also includes a limit shaft, the limit shaft passes through the limit plate, a return plate is provided on the outside of the limit plate, a manual rod is provided between the return plates, a first arc segment and a second arc segment are opened on the return plate, a return plate limit rod is provided on the side away from the limit plate, the return plate limit rod is arranged in the second arc segment, an auxiliary support leg control plate is provided at the end of the manual rod close to the inner rod, and a control rod passing through the inner rod is provided at the top of the auxiliary support leg control plate.

[0009] Furthermore, an articulated splint is provided near the end of the limiting rotating shaft of the inner rod, and the articulated splint is provided on the outside of the return plate. The cross-section of the articulated splint is U-shaped, and the arc section of the articulated splint is tightly fitted with the outer side surface of the limiting rotating shaft. A fixed plate splint is provided on the opposite side of the articulated splint, and a fixed plate is provided between the fixed plate splints. A fixed ratchet is provided on the outside of the fixed plate, and the fixed ratchet cooperates with the gear section. A rotating shaft hole is opened in the middle of the fixed plate splint, and a torsion spring rotating shaft is provided in the rotating shaft hole.

[0010] Furthermore, the articulated seat includes a group of left fixed shells and right fixed shells, which are coaxially arranged and have the same inner and outer diameters, main limit gears are provided on the opposite surfaces of the left fixed shells and the right fixed shells, and the left fixed shells and the right fixed shells are both screwed to the articulated mounting cover, and also include an inner rotating cylinder, which is coaxially arranged with the left fixed shell, and the outer diameter of the inner rotating cylinder is smaller than the inner diameter of the left fixed shell, and upper fixed rings are provided on both sides of the inner rotating cylinder, the cross-section of the upper fixed ring is fan-shaped, the inner diameter of the upper fixed ring is the same as the inner diameter of the inner rotating cylinder, and the outer diameter of the inner rotating cylinder is smaller than the outer diameter of the upper fixed ring, a leg connecting rod is provided on the outer side surface of the upper fixed ring, and a spring is provided in the middle of the inner rotating cylinder. The baffle plate and the spring baffle plate divide the inner rotating cylinder into two parts, a left part and a right part, a limit card strip groove connecting the inside and the outside is opened in the middle of the outer side surface of the inner rotating cylinder, and the limit card strip grooves are arranged at equal intervals along the circumferential direction on the outer side surface of the inner rotating cylinder, and also include a reset spring, and the reset spring is arranged on both sides of the spring baffle plate in the inner rotating cylinder, and also include a group of left manual card blocks and right manual card blocks, and the left manual card blocks and the right manual card blocks are respectively arranged on both sides of the spring baffle plate in the inner rotating cylinder, and the left manual card blocks and the right manual card blocks are both columnar and coaxially arranged, and left limit card strips and right limit card strips are respectively arranged on the outer sides of the left manual card blocks and the right manual card blocks near the spring baffle end, and the left limit card strips and the right limit card strips are both slidably matched with the limit card strip grooves.

[0011] Furthermore, the hollow support rod is tubular, and a spiral line is provided on the inner side of the hollow support rod, and a spiral groove cooperating with the hollow support rod is provided on the outer side of the sliding rod. A swing support rod is hinged on the outer side of the hollow support rod, and a swing connecting rod is hinged at the end of the swing support rod away from the hollow support rod. It also includes a connecting ring, which is provided on the outer side of the sliding rod, and the swing connecting rod is hinged to the connecting ring away from the end of the swing support rod, and a clamping device is provided at the top of the connecting ring.

[0012] Furthermore, the instrument mounting frame includes a mounting base plate, an azimuth rotation bracket is provided at the top of the mounting base plate, an azimuth fixing knob is provided on the outside of the azimuth rotation bracket, a pitch bracket is screwed at the top of the azimuth rotation bracket, the pitch bracket is U-shaped, and a pitch rotation axis is provided between the opposite surfaces of the pitch bracket.

[0013] Furthermore, the azimuth rotating bracket includes an azimuth rotating shaft shell, which is cylindrical and screwed to the top of the mounting base plate, and an air supply pipe running through the outside of the azimuth rotating shaft shell is provided on the outside of the azimuth rotating shaft shell. It also includes an azimuth rotating shaft, which is coaxially arranged with the azimuth rotating shaft shell, and is hollow. The cavity inside the azimuth rotating shaft constitutes a first buffer cavity, and a rotating shaft rod is provided inside the azimuth rotating shaft. A through hole connecting the inside and the outside is opened at the top of the azimuth rotating shaft, and the inner diameter of the through hole at the top of the azimuth rotating shaft is the same as the radius of the rotating shaft rod, and the inner diameter of the through hole at the top of the azimuth rotating shaft is smaller than the inner diameter of the first buffer cavity, and a piston is provided at one end of the rotating shaft rod, and the radius of the piston is the same as the radius of the first buffer cavity. The inner diameter of a buffer cavity is the same, and a limiting groove is provided on the piston. A stop rod cooperating with the limiting groove is provided on the inner wall surface of the first buffer cavity. The piston is slidably matched with the azimuth rotating shaft. It also includes an azimuth buffer spring sleeved on the outside of the azimuth rotating shaft, and also includes an azimuth rotating sleeve. The azimuth rotating sleeve is sleeved on the outer side of the rotating shaft rod. The azimuth rotating sleeve is in the shape of a boss. One end of the azimuth buffer spring is fixedly connected to the azimuth rotating sleeve. A bearing is sleeved on the outside of the azimuth rotating sleeve, and an auxiliary rotating sleeve is sleeved on the top of the azimuth rotating sleeve. The auxiliary rotating sleeve is connected to the bearing by a pin shaft. The auxiliary rotating sleeve is slidably matched with the bearing along the central axis direction, and a pitch bracket mounting plate is screwed on the top of the auxiliary rotating sleeve.

[0014] Furthermore, the azimuth rotating bracket also includes an azimuth rotating shaft sleeve, which is coaxially arranged with the azimuth rotating shaft. An airbag limiting shell is provided on the outer side of the azimuth rotating shaft sleeve. The airbag limiting shell includes an inner shell cylinder and an outer shell cylinder. A middle shell cylinder is integrally connected to the top of the inner shell cylinder. The inner diameter of the middle shell cylinder is the same as the maximum outer diameter of the azimuth rotating sleeve. The cavity between the inner shell cylinder and the outer shell cylinder constitutes an airbag installation cavity. A buffer airbag is provided in the airbag installation cavity. It also includes a group of one-way connecting pipes, which connect the buffer airbag with the first buffer cavity. The outer side of the buffer airbag is connected to the air supply pipe on the outer side of the azimuth rotating shaft outer shell.

[0015] The present invention has the following beneficial effects over the prior art: 1. The present invention hinges the roller with the inner rod and then adjusts the angle between the roller and the support rod through the hinge seat so that the roller can be used as a support pad during measurement; when the central axis of the damper is in a horizontal state, the rolling function of the roller facilitates the transfer of the measurement auxiliary device, and at the same time, the damper absorbs the energy when colliding with the wall, thereby reducing damage to the main body of the measurement auxiliary device.

[0016] 2. The damper is composed of the azimuth rotating shaft, the rotating shaft rod, the azimuth buffer spring and the azimuth rotating sleeve. That is, the azimuth rotating shaft and the rotating shaft rod can filter the ground vibration when performing the azimuth rotation as the core work of the azimuth rotating bracket, thereby reducing the interference of the outside world on the measurement result, so that the auxiliary rotating sleeve can maintain the same position with the installation base plate during the whole shock absorption and buffering process, thereby reducing the influence of the ground vibration on the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric diagram of the overall structure of the present invention; Figure 2 This is an axonometric view of a first embodiment of the folding mechanism of the present invention; Figure 3 This is an axonometric view of a second embodiment of the folding mechanism of the present invention; Figure 4 It is a schematic diagram of the working state of the folding mechanism of the second embodiment of the present invention; Figure 5 It is a schematic diagram of the roller legs of the second embodiment of the folding mechanism of the present invention; Figure 6 It is an axonometric view of the hinged seat of the second embodiment of the folding mechanism of the present invention; Figure 7 A top view of a hinged seat of a second embodiment of the folding mechanism of the present invention; Figure 8 For the present invention Figure 7 BB schematic diagram; Fig. 9 This is an axonometric view of a third embodiment of the folding mechanism of the present invention; Fig.10 A bottom view of the folding mechanism according to the third embodiment of the present invention; Fig.11 This is an exploded view of the folding mechanism of the third embodiment of the present invention; Fig.12 For the present invention Fig.10 AA schematic diagram; Fig.13 It is a schematic diagram of the instrument installation frame of the present invention; Fig.14 For the present invention Fig.13 Schematic cross-sectional view of ; Fig.15 This is an axonometric view of the azimuthally rotating bracket of the present invention; Fig.16 For the present invention Fig.15 Schematic diagram of CC; Fig.17 For the present invention Fig.16 A local enlarged schematic diagram of point A; Fig.18 This is a schematic diagram of the auxiliary rotating sleeve of the present invention; Fig.19 It is a schematic diagram of the airbag limiting shell of the present invention.

[0018] In the figure: 1, mounting plate; 2, supporting leg; 201, inner rod; 202, hinged splint; 203, auxiliary supporting sleeve; 204, auxiliary supporting leg; 205, fixing plate; 206, fixing plate splint; 207, electric telescopic rod; 208, control rod; 3, supporting pad; 301, roller; 302, connecting rod; 303, hinged seat; 3030, limiting plate; 3031, sliding sleeve; 3032, sliding fixing sleeve; 3033, buffer damper; 3034 , return plate limit rod; 3035, gear section; 3036, return plate; 3037, manual lever; 3038, auxiliary support leg control panel; 3039, limit shaft; 304, hinged mounting cover; 305, damping rod; 306, inner rotating cylinder; 307, right fixed shell; 308, left fixed shell; 309, upper fixed ring; 310, spring baffle; 311, support leg connecting rod; 312, limit card slot; 313, right manual card block; 314, left hand Moving block; 315, left limit card strip; 316, right limit card strip; 317, reset spring; 318, main limit gear; damping rod; 4, hollow support rod; 5, swing connecting rod; 6, sliding rod; 7, connecting ring; 8, hollow extrusion plate; 9, support plate; 10, instrument mounting frame; 1001, pitch bracket; 1002, pitch axis; 1003, azimuth fixing knob; 1004, mounting base; 1005, azimuth rotation bracket; 1006, axis rod ; 1007, azimuth rotating sleeve; 1008, bearing; 1009, auxiliary rotating sleeve; 1010, azimuth rotating shaft housing; 1011, azimuth rotating shaft sleeve; 1012, azimuth rotating shaft; 1013, first buffer cavity; 1014, airbag mounting cavity; 1015, azimuth buffer spring; 1016, pitch bracket mounting plate; 1017, air supply pipe; 1018, buffer airbag; 1019, airbag limiting shell; 1020, one-way connecting pipe; 11, swing support rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0020] In one embodiment, Figure 1-2A measurement auxiliary bracket shown in the figure includes a leg assembly and an instrument fixing assembly, wherein the leg assembly includes a mounting plate 1 and a sliding rod 6, the sliding rod 6 passes through the mounting plate 1, and a plurality of support legs 2 are hinged at the bottom end of the mounting plate 1, the support leg 2 includes an outer rod sleeve and an inner rod 201, and also includes a support pad 3 arranged at the other end of the support leg 2, the support pad 3 includes a roller 301, and the support pad 3 is hinged to the support leg 2 through a folding mechanism; a hollow support rod 4 is provided on the outer side of the sliding rod 6 away from the mounting plate 1, a hollow extrusion plate 8 is provided on the outer side of the sliding rod 6 away from the hollow support rod 4, a support plate 9 is provided at the top end of the sliding rod 6, and an instrument mounting frame 10 is provided at the top end of the support plate 9.

[0021] The roller 301 includes a rotating shaft, which is arranged on one side of the roller 301 , and a connecting rod 302 , which is connected to the rotating shaft through a pin, and the end of the connecting rod 302 away from the roller 301 is hinged to the inner rod 201 .

[0022] The hollow support rod 4 is tubular, and a spiral line is provided on the inner side of the hollow support rod 4, and a spiral groove cooperating with the hollow support rod 4 is provided on the outer side of the slide rod 6. A swing support rod 11 is hinged on the outer side of the hollow support rod 4, and a swing connecting rod 5 is hinged at the end of the swing support rod 11 away from the hollow support rod 4. It also includes a connecting ring 7, which is provided on the outer side of the slide rod 6. The end of the swing connecting rod 5 away from the swing support rod 11 is hinged to the connecting ring 7, and a clamping device is provided at the top of the connecting ring 7.

[0023] In this embodiment, the folding mechanism is composed of a hinged inner rod 201 and a connecting rod 302. The mounting plate 1 is fixed and supported by a sliding rod 6. In order to prevent the sliding rod 6 from tilting, two groups of symmetrically arranged supporting legs 2 are hinged at the bottom end of the mounting plate 1. Since the supporting leg 2 includes an outer rod sleeve and an inner rod 201, the inner rod 201 can slide along the outer rod sleeve to adjust the length of the supporting leg 2. Then, a fixing buckle (the fixing buckle structure has been disclosed in the patent application number CN201720791526.5) is provided on the outer rod, and the inner rod 201 is fixed by the fixing buckle; Then, in order to facilitate the movement of the mounting plate 1, a support pad 3 is provided at the end of the inner rod 201 away from the mounting plate 1. Since the support pad 3 includes a roller 301, a rotating shaft is provided in the middle of the roller 301, and the rotating shaft is hinged to the inner rod 201, when the mounting plate 1 needs to be moved, the roller 301 is rotated around the hinge shaft by a certain angle, so that the tread of the roller 301 contacts the ground, thereby realizing the movement of the mounting plate 1; When the height of the mounting plate 1 needs to be adjusted, the hollow support rod 4 on the outside of the slide rod 6 is rotated. Since the contact surface between the rotating slide rod 6 and the hollow support rod 4 is threaded, the height of the slide rod 6 relative to the ground can be adjusted. When the auxiliary device needs to be quickly transferred, the clamping device at the connecting ring 7 (the patent with application number CN201910188305.2 has disclosed the clamping device structure) is loosened, and the slide rod 6 is moved upward relative to the ground by rotating the swing connecting rod 5. Then the swing support rod 11 is pressed against the ground and fixed by the clamping device of the connecting ring 7. The swing support rod 11 includes a coaxially arranged connecting rod and a roller. Then the auxiliary device is dragged for rapid transfer.

[0024] In one embodiment, Figure 3-8 As shown, the connecting rod 302 is a damper, which includes a damping rod 305, one end of which is connected to the rotating shaft of the roller 301 through a pin shaft, and also includes a spring sleeved on the outside of the damping rod 305, and also includes a hinged mounting cover 304, the hinged mounting cover 304 is arranged at the top of the damping rod 305, and a hinged seat 303 is arranged at the top of the hinged mounting cover 304, a secondary support sleeve 203 is arranged on the outside of the inner rod 201 near the end of the hinged seat 303, a partition plate is arranged in the secondary support sleeve 203, the partition plate divides the secondary support sleeve 203 into a support cavity and a power cavity, an electric telescopic rod 207 is arranged in the power cavity, and a secondary support leg 204 is arranged in the secondary support sleeve 203, one end of the secondary support leg 204 is conical, and the secondary support leg 204 is connected to the electric telescopic rod 207 through a pin shaft away from the conical end.

[0025] The hinge seat 303 includes a sliding fixed sleeve 3032, which is in the shape of a square cylinder, and a set of parallel wall surfaces of the sliding fixed sleeve 3032 are provided with sliding grooves, and also includes a sliding sleeve 3031, which is arranged inside the sliding fixed sleeve 3032, and a sliding lever that slides with the sliding groove is provided on the outer side of the sliding sleeve 3031, and the sliding lever is integrally connected with the sliding sleeve 3031, and also includes a buffer damper 3033, which is arranged in the sliding groove, and one end of the buffer damper 3033 is connected to the sliding lever, and also includes a limit plate 3030, which is in the shape of a circular ring, and is arranged at the end of the sliding sleeve 3031 away from the sliding fixed sleeve 3032. The limiting plate 3030 is integrally connected with the sliding sleeve 3031, a gear section 3035 is provided on the limiting plate 3030, and also includes a limiting shaft 3039, the limiting shaft 3039 passes through the limiting plate 3030, a return plate 3036 is provided on the outer side of the limiting plate 3030, a manual rod 3037 is provided between the return plates 3036, a first arc segment and a second arc segment are opened on the return plate 3036, a return plate limiting rod 3034 is provided on the side away from the limiting plate 3030, the return plate limiting rod 3034 is arranged in the second arc segment, an auxiliary support leg control plate 3038 is provided at the end of the manual rod 3037 close to the inner rod 201, and a control rod 208 passing through the inner rod 201 is provided at the top of the auxiliary support leg control plate 3038.

[0026] The inner rod 201 is provided with an articulated splint 202 near the end of the limiting rotation shaft 3039, and the articulated splint 202 is arranged on the outside of the return plate 3036. The cross-section of the articulated splint 202 is U-shaped, and the arc section of the articulated splint 202 is tightly fitted with the outer side of the limiting rotation shaft 3039. A fixed plate splint 206 is provided on the opposite side of the articulated splint 202, and a fixed plate 205 is provided between the fixed plate splints 206. A fixed ratchet is provided on the outside of the fixed plate 205, and the fixed ratchet cooperates with the gear section 3035. A rotation shaft hole is opened in the middle of the fixed plate splint 206, and a torsion spring rotation shaft is provided in the rotation shaft hole.

[0027] In this embodiment, the folding mechanism is composed of an articulated inner rod 201 and a connecting rod 302, and then the rigid connecting rod 302 is replaced with a damper, and the ground vibration is initially filtered by the damper. Then, according to different working states, the angle between the damper and the inner rod 201 is changed by the articulated seat 303, so that the roller 301 is in different working states, such as Figure 4As shown, when the central axis of the damper is in a plumb state, one side of the roller 301 is in contact with the ground, so that the roller 301 serves as a support pad during measurement. When the central axis of the damper is in a horizontal state, the tread of the roller 301 is in contact with the ground, which facilitates the transfer of the measurement auxiliary device. At the same time, the damper absorbs the energy when colliding with the wall, reducing the damage to the main body of the measurement auxiliary device. When the central axis of the damper is perpendicular or at an acute angle to the central axis of the inner rod, the auxiliary support leg 204 is extended from the auxiliary support sleeve 203, so that the auxiliary measurement device can be fixed and leveled at different soil measurement locations. Specifically, the sliding fixed sleeve 3032 is fixedly connected to the damper, the sliding sleeve 3031 is arranged inside the sliding fixed sleeve 3032 and connected to the sliding fixed sleeve 3032 through the buffer damper 3033, so that the ground vibration is further filtered, and then the return plate 3036 is rotated by manually pressing the manual rod 3037, and the arc edge of the first arc segment of the return plate 3036 pushes the fixed ratchet of the fixed plate 205 to disengage the gear segment 3035 of the limiting plate 3030, and then the angle of the damper is adjusted, so that the component integrally connected between the sliding sleeve 3031 and the limiting plate 3030 rotates around the limiting rotation shaft 3039, thereby realizing the adjustment of the damper angle; In particular, when the manual rod 3037 is manually pushed upward to the highest point, that is, the soil is not suitable for the side of the roller 301 to support the measurement auxiliary device, and the auxiliary support leg 204 is required to support the measurement auxiliary device. At this time, the manual rod 3037 pushes the auxiliary support leg control board 3038 to move to the extreme point at the end of the inner rod 201. Since the control rod 208 is fixedly connected to the auxiliary support leg control board 3038, the control rod 208 connects the circuit of the electric telescopic rod 207. After the electric telescopic rod 207 is energized, it extends to push the auxiliary support leg 204 out of the auxiliary support sleeve 203, and then the manual rod 3037 is released. At this time, the return plate 3036 rotates to make the control rod 208 break away from the contact with the electrode. During recovery, the electric telescopic rod 207 is shortened by reversing the input direction of the current, and the auxiliary support leg 204 is pulled back from the outside into the auxiliary support sleeve 203.

[0028] In one embodiment, Figure 9-12As shown, the hinge seat 303 includes a group of left fixed shell 308 and right fixed shell 307, the left fixed shell 308 and the right fixed shell 307 are coaxially arranged and have the same inner and outer diameters, main limit gears 318 are provided on the opposite surfaces of the left fixed shell 308 and the right fixed shell 307, the left fixed shell 308 and the right fixed shell 307 are both screwed with the hinged mounting cover 304, and also includes an inner rotating cylinder 306, the inner rotating cylinder 306 is coaxially arranged with the left fixed shell 308, the outer diameter of the inner rotating cylinder 306 is smaller than the inner diameter of the left fixed shell 308, upper fixed rings 309 are provided on both sides of the inner rotating cylinder 306, the cross-section of the upper fixed ring 309 is fan-shaped, the inner diameter of the upper fixed ring 309 is the same as the inner diameter of the inner rotating cylinder 306, the outer diameter of the inner rotating cylinder 306 is smaller than the outer diameter of the upper fixed ring 309, a leg connecting rod 311 is provided on the outer side surface of the upper fixed ring 309, and a spring stop is provided in the middle of the inner rotating cylinder 306. The spring baffle 310 divides the inner rotating cylinder 306 into two parts, a limit clamping strip groove 312 connecting the inside and the outside is opened in the middle of the outer side surface of the inner rotating cylinder 306, and the limit clamping strip grooves 312 are arranged at equal intervals along the circumferential direction on the outer side surface of the inner rotating cylinder 306, and also include a reset spring 317, which is arranged on both sides of the spring baffle 310 in the inner rotating cylinder 306, and also includes a group of left manual clamping blocks 314 and right manual clamping blocks 313, the left hand The movable clamp block 314 and the right manual clamp block 313 are respectively arranged on both sides of the spring baffle 310 in the inner rotating cylinder 306. The left manual clamp block 314 and the right manual clamp block 313 are both columnar and coaxially arranged. A left limit clamp strip 315 and a right limit clamp strip 316 are respectively provided on the outer side surfaces of the left manual clamp block 314 and the right manual clamp block 313 near the end of the spring baffle 310. The left limit clamp strip 315 and the right limit clamp strip 316 are both slidably matched with the limit clamp strip groove 312.

[0029] In this embodiment, the folding mechanism is an articulated seat 303. When the angle between the damper and the supporting leg 2 needs to be changed, the right manual block 313 and the left manual block 314 are pressed by hand so that the right manual block 313 and the left manual block 314 are moved toward the spring baffle 310. Since the left limit card strip 315 and the right limit card strip 316 are respectively connected to the left manual block 314 and the right manual block 313 in an integrated manner, the left limit card strip 315 and the right limit card strip 316 are respectively moved along the main limit gear 318 of the left fixed shell 308 and the right fixed shell 307 and the limit card of the inner rotating cylinder 306. The strip groove 312 moves toward the spring baffle 310, so that the left fixed shell 308 and the right fixed shell 307 can rotate around the inner rotating cylinder 306. When the damper rotates to a specified angle (described in the previous embodiment), the constraint on the right manual block 313 and the left manual block 314 is released, so that the right manual block 313 and the left manual block 314 are pushed away from the spring baffle 310 under the action of the return spring 317, thereby limiting the inner rotating cylinder 306 and the left fixed shell 308 and the right fixed shell 307 through the left limit strip 315 and the right limit strip 316, thereby completing the angle fixation.

[0030] In one embodiment, Figure 13-19 As shown, the instrument mounting frame 10 includes a mounting base plate 1004, an azimuth rotating bracket 1005 is provided at the top of the mounting base plate 1004, an azimuth fixing knob 1003 is provided at the outside of the azimuth rotating bracket 1005, a pitch bracket 1001 is screwed at the top of the azimuth rotating bracket 1005, the pitch bracket 1001 is U-shaped, and a pitch rotation axis 1002 is provided between opposite surfaces of the pitch bracket 1001.

[0031] The azimuth rotating bracket 1005 includes an azimuth rotating shaft shell 1010, which is cylindrical and screwed to the top of the mounting base plate 1004. An air supply pipe 1017 is provided on the outside of the azimuth rotating shaft shell 1010 to penetrate inside and outside thereof. The azimuth rotating shaft 1012 is also included. The azimuth rotating shaft 1012 is coaxially arranged with the azimuth rotating shaft shell 1010. The azimuth rotating shaft 1012 is hollow. The cavity inside the azimuth rotating shaft 1012 constitutes a first buffer cavity 1013. A rotating shaft rod 1006 is provided inside the azimuth rotating shaft 1012. A through hole connecting the inside and outside is opened at the top of the azimuth rotating shaft 1012. The inner diameter of the through hole at the top of the azimuth rotating shaft 1012 is the same as the radius of the rotating shaft rod 1006. The inner diameter of the top through hole is smaller than the inner diameter of the first buffer chamber 1013, a piston is provided at one end of the rotating shaft rod 1006, the radius of the piston is the same as the inner diameter of the first buffer chamber 1013, a limiting groove is provided on the piston, and a stop rod matched with the limiting groove is provided on the inner wall of the first buffer chamber 1013, the piston is slidably matched with the azimuth rotating shaft 1012, and also includes an azimuth buffer spring 1015 sleeved on the outside of the azimuth rotating shaft 1012, and also includes an azimuth rotating sleeve 1007, the azimuth rotating sleeve 1007 is sleeved on the outer side of the rotating shaft rod 1006, the azimuth rotating sleeve 1007 is in the shape of a boss, one end of the azimuth buffer spring 1015 is fixedly connected to the azimuth rotating sleeve 1007, and a bearing 1008 is sleeved on the outside of the azimuth rotating sleeve 1007, such as Fig.16 As shown, an auxiliary rotating sleeve 1009 is sleeved on the top of the azimuth rotating sleeve 1007, and the auxiliary rotating sleeve 1009 is connected to the bearing 1008 through a pin. In the initial state, the top of the bearing 1008 is flush with the top of the auxiliary rotating sleeve 1009, and then the bearing 1008 is connected to the auxiliary rotating sleeve 1009. Fig.16 As shown, since the azimuth rotating sleeve 1007 is in a boss shape, that is, the azimuth rotating sleeve 1007 is composed of a sleeve and an annular plate, the bearing 1008 is arranged at the top of the annular plate of the azimuth rotating sleeve 1007 and is coaxial with the sleeve of the azimuth rotating sleeve 1007, the bearing 1008 and the azimuth rotating sleeve 1007 are interference fit, and an auxiliary rotating sleeve 1009 is provided on the top of the annular plate of the azimuth rotating sleeve 1007 and is coaxially arranged with the azimuth rotating sleeve 1007, as shown in FIG. Fig.18 As shown, the auxiliary rotating sleeve 1009 is composed of a circular ring plate rotating sleeve and a limiting sleeve. The bottom end of the circular ring plate rotating sleeve of the auxiliary rotating sleeve 1009 contacts the top end of the circular ring plate of the azimuth rotating sleeve 1007, and then a pin hole is opened on the inner side of the circular ring plate rotating sleeve of the auxiliary rotating sleeve 1009, and a pin is provided on the outer side of the bearing 1008, that is, the bearing 1008 and the auxiliary rotating sleeve 1009 are fixed by the pin on the outer side of the bearing 1008 and the pin hole of the auxiliary rotating sleeve 1009, so that the auxiliary rotating sleeve 1009 can rotate around the central axis through the bearing 1008, and at the same time, the outer diameter of the bearing 1008 is smaller than the inner diameter of the circular ring plate rotating sleeve of the auxiliary rotating sleeve 1009, so that the auxiliary rotating sleeve 1009 and the bearing 1008 can slide together along the central axis direction, and a pitch bracket mounting plate 1016 is screwed on the top of the auxiliary rotating sleeve 1009.

[0032] The azimuth rotating bracket 1005 also includes an azimuth rotating shaft sleeve 1011, which is coaxially arranged with the azimuth rotating shaft 1012. An airbag limiting shell 1019 is provided on the outer side of the azimuth rotating shaft sleeve 1011. The airbag limiting shell 1019 includes an inner shell cylinder and an outer shell cylinder. A middle shell cylinder is integrally connected to the top of the inner shell cylinder. The inner diameter of the middle shell cylinder is the same as the maximum outer diameter of the azimuth rotating sleeve 1007. The cavity between the inner shell cylinder and the outer shell cylinder constitutes an airbag installation cavity 1014. A buffer airbag 1018 is provided in the airbag installation cavity 1014. It also includes a group of one-way connecting pipes 1020. The one-way connecting pipes 1020 connect the buffer airbag 1018 with the first buffer cavity 1013. The outer side of the buffer airbag 1018 is connected to the air supply pipe 1017 on the outer side of the azimuth rotating shaft outer shell 1010.

[0033] In this embodiment, by rotating the azimuth fixing knob 1003, the azimuth fixing knob 1003 is extended into the azimuth rotating shaft housing 1010 to increase the pressure on the auxiliary rotating sleeve 1009, thereby limiting the position of the auxiliary rotating sleeve 1009, that is, making the auxiliary rotating sleeve 1009 unable to rotate around its own central axis; The pitch angle of the measuring device is controlled by the pitch shaft 1002 on the pitch bracket 1001, and then the horizontal azimuth of the measuring device is controlled by the azimuth shaft 1012. Since the azimuth shaft 1012 is hollow and has a through hole connecting the inside and the outside at the top, a rotating shaft rod 1006 is provided inside the azimuth shaft 1012, an azimuth rotating sleeve 1007 is sleeved on the outside of the rotating shaft rod 1006, and an azimuth buffer spring 1015 is provided at the lower end of the azimuth rotating sleeve 1007. Therefore, a damper is formed by the azimuth shaft 1012, the rotating shaft rod 1006, the azimuth buffer spring 1015 and the azimuth rotating sleeve 1007, that is, the azimuth shaft 1012 and the rotating shaft rod 1006 are used as the core of the azimuth rotating bracket 1005 to perform azimuth rotation, and can also filter ground vibrations to reduce external interference with the measurement results; In particular, there are two one-way communicating pipes 1020, and the two one-way communicating pipes 1020 are arranged symmetrically along the central axis of the azimuth rotating shaft 1012. One of the one-way communicating pipes 1020 connects the first buffer cavity 1013 with the buffer airbag 1018 in one direction, that is, the gas in the first buffer cavity 1013 can only enter the buffer airbag 1018 in one direction; the other one-way communicating pipe 1020 connects the buffer airbag 1018 with the first buffer cavity 1013 in one direction, that is, the gas in the buffer airbag 1018 can only enter the first buffer cavity 1013 in one direction. A one-way solenoid valve is provided in the one-way communicating pipe 1020, and a distance sensor is provided on the bottom end surface inside the first buffer cavity 1013 for measuring the distance in the first buffer cavity 1013. The distance between the bottom end surface of the first buffer chamber 1013 and the rotating shaft rod 1006 and the piston in the first buffer chamber 1013. When working, in the initial state, the one-way solenoid valves in the two one-way connecting pipes 1020 are closed. When the rotating shaft rod 1006 drives the piston to move toward the bottom end surface of the first buffer chamber 1013, that is, when the distance detected by the distance sensor gradually decreases, the one-way solenoid valve in the one-way connecting pipe 1020 that allows gas to enter the buffer airbag 1018 from the first buffer chamber 1013 in one direction is opened; when the rotating shaft rod 1006 drives the piston to move away from the bottom end surface of the first buffer chamber 1013, that is, when the distance detected by the distance sensor gradually increases, the one-way solenoid valve in the one-way connecting pipe 1020 that allows gas to enter the first buffer chamber 1013 in one direction from the buffer airbag 1018 is opened.

[0034] During operation, the auxiliary rotating sleeve 1009 and the pitch bracket 1001 screwed to its top move downward, pushing the bearing 1008, the rotating shaft rod 1006 and the azimuth rotating sleeve 1007 to move downward, and the azimuth rotating sleeve 1007 compresses the azimuth buffer spring 1015. The piston at the bottom end of the rotating shaft rod 1006 squeezes the air in the first buffer chamber 1013 toward the buffer airbag 1018 in the airbag mounting chamber 1014, so that the volume of the buffer airbag 1018 expands. Since the buffer airbag 1018 is restricted by the airbag limiting shell 1019, the buffer airbag 1018 moves toward the auxiliary rotating sleeve 1009, so that the auxiliary rotating sleeve 1009 stops moving downward and remains at a height relative to the mounting base plate 1004. When it is compressed to the lowest and then rebounds, the azimuth buffer spring 1015 pushes the azimuth rotating sleeve 1007 to move upward and then drives the rotating sleeve 1007 to move upward. The piston of the shaft 1006 moves upward, thereby reducing the pressure in the first buffer chamber 1013, causing the gas in the buffer airbag 1018 to be injected into the first buffer chamber 1013 through the one-way connecting pipe 1020, and then the volume of the buffer airbag 1018 is reduced. When the azimuth rotating sleeve 1007 moves to contact with the auxiliary rotating sleeve 1009, it stops moving, and then the above movements are repeated in sequence until the shock absorption is completed, so that the auxiliary rotating sleeve 1009 maintains its position relative to the mounting base plate 1004 during the entire shock absorption and buffering process, reducing the impact of ground vibration on the measurement results. Finally, after a long period of use, when the gas loss in the buffer airbag 1018 and the first buffer chamber 1013 is relatively large, the buffer airbag 1018 is inflated with an appropriate amount of outside air through the air supply pipe 1017 connected to the buffer airbag 1018.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A measurement auxiliary bracket, comprising a leg assembly and an instrument fixing assembly, characterized in that: The support leg assembly includes a mounting plate and a sliding rod, the sliding rod passes through the mounting plate, and a plurality of support legs are hinged at the bottom end of the mounting plate, the support leg includes an outer rod sleeve and an inner rod, and also includes a support pad arranged at the other end of the support leg, the support pad includes a roller, and the support pad is hinged to the support leg; a hollow support rod is provided on the outer side of the sliding rod away from the end of the mounting plate, a hollow extrusion disk is provided on the outer side of the sliding rod away from the end of the hollow support rod, a support disk is provided at the top end of the sliding rod, and an instrument mounting frame is provided at the top end of the support disk.

2. The measurement auxiliary bracket according to claim 1, characterized in that: The roller comprises a rotating shaft, which is arranged at one side of the roller, and a connecting rod, which is connected to the rotating shaft through a pin, and the connecting rod is hinged to the inner rod at an end away from the roller.

3. The measurement auxiliary bracket according to claim 1, characterized in that: The connecting rod is a damper, which includes a damping rod, one end of which is connected to the rotating shaft of the roller through a pin shaft, a spring sleeved on the outside of the damping rod, and a hinged mounting cover, which is arranged at the top of the damping rod, and a hinged seat is provided at the top of the hinged mounting cover, a secondary support sleeve is provided on the outside of the inner rod near the end of the hinged seat, a partition plate is provided in the secondary support sleeve, and the partition plate divides the secondary support sleeve into a support chamber and a power chamber, an electric telescopic rod is provided in the power chamber, and a secondary support leg is provided in the secondary support sleeve, one end of the secondary support leg is conical, and the secondary support leg is connected to the electric telescopic rod through a pin shaft away from the conical end.

4. The measurement auxiliary bracket according to claim 3, characterized in that: The hinge seat includes a sliding fixed sleeve, which is in the shape of a square cylinder, and a set of parallel wall surfaces of the sliding fixed sleeve are provided with sliding grooves, a sliding sleeve, which is arranged inside the sliding fixed sleeve, and a sliding lever that slides with the sliding groove is provided on the outer side of the sliding sleeve, and the sliding lever is integrally connected with the sliding sleeve, and also includes a buffer damper, which is arranged in the sliding groove, and one end of the buffer damper is connected to the sliding lever, and also includes a limit plate, which is in the shape of a ring and is arranged at the far end of the sliding sleeve. The limit plate is connected with the sliding sleeve in an integral manner, a gear section is arranged on the limit plate, and a limit shaft is also included, the limit shaft passes through the limit plate, a return plate is arranged on the outer side of the limit plate, a manual rod is arranged between the return plates, a first arc segment and a second arc segment are opened on the return plate, a return plate limit rod is arranged on the side away from the limit plate, the return plate limit rod is arranged in the second arc segment, an auxiliary support leg control plate is arranged near the inner rod end of the manual rod, and a control rod passing through the inner rod is arranged at the top of the auxiliary support leg control plate.

5. The measurement auxiliary bracket according to claim 4, characterized in that: The inner rod is provided with an articulated splint near the end of the limiting rotating shaft, the articulated splint is arranged on the outside of the return plate, the cross-section of the articulated splint is U-shaped, the arc section of the articulated splint is tightly fitted with the outer side of the limiting rotating shaft, a fixed plate splint is provided on the opposite side of the articulated splint, a fixed plate is provided between the fixed plate splints, a fixed ratchet is provided on the outside of the fixed plate, the fixed ratchet cooperates with the gear section, a rotating shaft hole is opened in the middle of the fixed plate splint, and a torsion spring rotating shaft is provided in the rotating shaft hole.

6. The measurement auxiliary bracket according to claim 3, characterized in that: The hinge seat comprises a group of left fixed shell and right fixed shell, the left fixed shell and the right fixed shell are coaxially arranged and have the same inner and outer diameters, main limit gears are provided on the opposite surfaces of the left fixed shell and the right fixed shell, the left fixed shell and the right fixed shell are screwed with the hinged mounting cover, and also comprises an inner rotating cylinder, the inner rotating cylinder is coaxially arranged with the left fixed shell, the outer diameter of the inner rotating cylinder is smaller than the inner diameter of the left fixed shell, upper fixed rings are provided on both sides of the inner rotating cylinder, the cross-section of the upper fixed ring is fan-shaped, the inner diameter of the upper fixed ring is the same as the inner diameter of the inner rotating cylinder, the outer diameter of the inner rotating cylinder is smaller than the outer diameter of the upper fixed ring, a leg connecting rod is provided on the outer side surface of the upper fixed ring, and a spring stop is provided in the middle part of the inner rotating cylinder The spring baffle divides the inner rotating cylinder into left and right parts, and a limit card strip groove connecting the inside and the outside is opened in the middle of the outer side surface of the inner rotating cylinder, and the limit card strip grooves are arranged at equal intervals along the circumferential direction on the outer side surface of the inner rotating cylinder. It also includes a reset spring, and the reset spring is arranged on both sides of the spring baffle in the inner rotating cylinder. It also includes a group of left manual blocks and right manual blocks, and the left manual blocks and the right manual blocks are respectively arranged on both sides of the spring baffle in the inner rotating cylinder. The left manual blocks and the right manual blocks are both columnar and coaxially arranged, and left limit card strips and right limit card strips are respectively arranged on the outer sides of the left manual blocks and the right manual blocks near the ends of the spring baffle, and the left limit card strips and the right limit card strips are both slidably matched with the limit card strip grooves.

7. The measurement auxiliary bracket according to any one of claims 5 or 6, characterized in that: The hollow support rod is tubular, and a spiral line is provided on the inner side of the hollow support rod, and a spiral groove cooperating with the hollow support rod is provided on the outer side of the sliding rod. A swing support rod is hinged on the outer side of the hollow support rod, and a swing connecting rod is hinged at the end of the swing support rod away from the hollow support rod. It also includes a connecting ring, which is provided on the outer side of the sliding rod, and the swing connecting rod is hinged to the connecting ring away from the end of the swing support rod, and a clamping device is provided at the top of the connecting ring.

8. The measurement auxiliary bracket according to claim 7, characterized in that: The instrument mounting frame comprises a mounting base plate, an azimuth rotating bracket is arranged at the top of the mounting base plate, an azimuth fixing knob is arranged outside the azimuth rotating bracket, a pitch bracket is screwed at the top of the azimuth rotating bracket, the pitch bracket is U-shaped, and a pitch rotating shaft is arranged between opposite surfaces of the pitch bracket.

9. The measurement auxiliary bracket according to claim 8, characterized in that: The azimuth rotating bracket includes an azimuth rotating shaft shell, which is cylindrical and screwed to the top of the mounting base plate. An air supply pipe that runs through the outside of the azimuth rotating shaft shell is provided on the outside of the azimuth rotating shaft shell. It also includes an azimuth rotating shaft, which is coaxially arranged with the azimuth rotating shaft shell. The azimuth rotating shaft is hollow, and the cavity inside the azimuth rotating shaft constitutes a first buffer cavity. A rotating shaft rod is provided inside the azimuth rotating shaft. A through hole connecting the inside and the outside is opened at the top of the azimuth rotating shaft. The inner diameter of the through hole at the top of the azimuth rotating shaft is the same as the radius of the rotating shaft rod, and the inner diameter of the through hole at the top of the azimuth rotating shaft is smaller than the inner diameter of the first buffer cavity. A piston is provided at one end of the rotating shaft rod, and the radius of the piston is the same as the radius of the first buffer cavity. The inner diameters of the punching cavities are the same, a limiting groove is provided on the piston, a stop rod matching the limiting groove is provided on the inner wall of the first buffer cavity, the piston is slidably matched with the azimuth rotating shaft, and also includes an azimuth buffer spring sleeved on the outside of the azimuth rotating shaft, and also includes an azimuth rotating sleeve, the azimuth rotating sleeve is sleeved on the outer side of the rotating shaft rod, the azimuth rotating sleeve is in the shape of a boss, one end of the azimuth buffer spring is fixedly connected to the azimuth rotating sleeve, a bearing is sleeved on the outside of the azimuth rotating sleeve, an auxiliary rotating sleeve is sleeved on the top end of the azimuth rotating sleeve, the auxiliary rotating sleeve is connected to the bearing by a pin shaft, the auxiliary rotating sleeve is slidably matched with the bearing along the central axis direction, and a pitch bracket mounting plate is screwed on the top end of the auxiliary rotating sleeve.

10. The measurement auxiliary bracket according to claim 9, characterized in that: The azimuth rotating bracket also includes an azimuth rotating shaft sleeve, which is coaxially arranged with the azimuth rotating shaft. An airbag limiting shell is provided on the outer side of the azimuth rotating shaft sleeve. The airbag limiting shell includes an inner shell cylinder and an outer shell cylinder. A middle shell cylinder is integrally connected to the top of the inner shell cylinder. The inner diameter of the middle shell cylinder is the same as the maximum outer diameter of the azimuth rotating sleeve. The cavity between the inner shell cylinder and the outer shell cylinder constitutes an airbag installation cavity. A buffer airbag is provided in the airbag installation cavity. The airbag installation cavity also includes a group of one-way connecting pipes, which connect the buffer airbag with the first buffer cavity. The outer side of the buffer airbag is connected to the air supply pipe on the outer side of the azimuth rotating shaft outer shell.

Images