CN210242763U

CN210242763U - Theodolite rack that conveniently carries

Info

Publication number: CN210242763U
Application number: CN201921348383.6U
Authority: CN
Inventors: Junjie Da; 达俊杰; Hong Shen; 沈虹
Original assignee: SHANGHAI BEISHENG BUILDING ENGINEERING DEVELOPMENT CO LTD
Current assignee: SHANGHAI BEISHENG BUILDING ENGINEERING DEVELOPMENT CO LTD
Priority date: 2019-08-17
Filing date: 2019-08-17
Publication date: 2020-04-03
Anticipated expiration: 2029-08-17

Abstract

The utility model discloses a theodolite rack that conveniently carries relates to the technical field of theodolite, including placing the seat to and 3 stabilizer blades of setting on placing the seat, the stabilizer blade is including articulating the pole that holds on placing the seat, and slides and connect the telescopic link on holding the pole, the one end that holds the pole and keep away from and place the seat is provided with the holding tank along its length direction, the telescopic link slides and connects in the holding tank, just be provided with the drive assembly of drive telescopic link motion in the holding tank. Through being provided with the telescopic stabilizer blade, reduced the length of stabilizer blade and the volume of rack, the operating personnel of being convenient for carries and carries, has reduced the cost of labor, has improved operating personnel's work efficiency.

Description

Theodolite rack that conveniently carries

Technical Field

The utility model relates to a technical field of theodolite, more specifically say, it relates to a theodolite rack that conveniently carries.

Background

The theodolite is a measuring instrument for measuring horizontal angles and vertical angles designed according to the angle measuring principle, and is divided into an optical theodolite and an electronic theodolite, and the electronic theodolite is the most commonly used instrument at present.

During measurement, the theodolite is arranged on a tripod, the center of the instrument is aligned to a ground measuring station by a plumb ball or an optical plummet, the instrument is leveled by a level gauge, a telescope is used for aiming at a measuring target, and a horizontal dial and a vertical dial are used for measuring a horizontal angle and a vertical angle.

Because the stabilizer blade of the tripod of current placing theodolite is longer, and the volume is great, and the workman of being not convenient for carries, leads to one person's measurement work to need the transport equipment that helps of two or three people, has increased the cost of labor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a theodolite rack that conveniently carries through being provided with the telescopic stabilizer blade, has reduced the length of stabilizer blade and the volume of rack, and the operating personnel of being convenient for carries and carries, has reduced the cost of labor, has improved operating personnel's work efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a theodolite rack that conveniently carries, is including placing the seat to and 3 stabilizer blades of setting on placing the seat, the stabilizer blade is including articulating the pole that holds that articulates on placing the seat to and slide and connect the telescopic link on holding the pole, the one end that holds the pole and keep away from placing the seat is provided with the holding tank along its length direction, the telescopic link slides and connects in the holding tank, just be provided with the drive assembly of drive telescopic link motion in the holding tank.

Through adopting above-mentioned technical scheme, when the length of will adjusting the stabilizer blade, start drive assembly for drive assembly drive telescopic link is close to or is kept away from along holding tank length direction and places the seat motion, is used for adjusting the length of stabilizer blade, makes the length of stabilizer blade adjustable.

When carrying and carrying the rack, the telescopic link slides and connects in the holding tank to reduce the length of stabilizer blade and the volume of rack, the operating personnel of being convenient for carries and carries, has reduced the cost of labor, has improved operating personnel's work efficiency.

The utility model discloses further set up to: drive assembly includes along holding tank length direction set up in the holding tank and with holding tank rotate drive screw, coaxial cover that connect establish drive screw near the drive worm wheel of placing seat one end to and rotate connect in the holding tank and with drive screw looks vertically drive worm, drive worm with drive worm wheel meshes mutually, just be provided with on the telescopic link with the holding tank slides the sliding block of connecting, drive screw passes sliding block and with sliding block threaded connection.

Through adopting above-mentioned technical scheme, the worm rotates, thereby it rotates with the drive worm wheel that the drive worm meshes mutually, make the drive screw who sets up with the drive worm wheel is coaxial to rotate, make and do the motion of being close to or keeping away from the seat of placing along holding tank length direction with drive screw thread fit's sliding block, thereby make the telescopic link do along holding tank length direction and be close to or keep away from the seat of placing and move, realize adjusting the purpose of stabilizer blade length, make the height of rack and operating personnel's height looks adaptation, make things convenient for operating personnel to measure.

Simultaneously, when carrying and carrying the rack, the telescopic link slides and connects in the holding tank for reduce the length of stabilizer blade and the volume of rack, the operating personnel's of being convenient for carry and carry the rack.

The driving worm and the driving worm wheel are close to the placing seat, so that when the position of the placing seat is finely adjusted, an operator does not need to squat or to sit down to adjust the length of the support legs, the operator can adjust the length of the support legs conveniently, and the labor intensity and the operation difficulty of the operator are reduced.

The utility model discloses further set up to: all be provided with the spacing groove along its length direction on the relative both sides wall of holding tank, be provided with on the sliding block with the stopper of spacing groove looks adaptation.

By adopting the technical scheme, the sliding track of the sliding block is limited, the sliding block is prevented from deflecting in the sliding process, the running stability of the sliding block is improved, and the flexibility of the support leg during adjustment is improved.

The utility model discloses further set up to: one end of the driving worm wheel is provided with a connecting rod, and the other end of the connecting rod is provided with a spherical handle.

By adopting the technical scheme, the worm is driven to rotate by operators conveniently, and the operability of the operators is improved.

The utility model discloses further set up to: the connecting rod with the drive worm wheel rotates to be connected, just be provided with locating component on the connecting rod, still be provided with the resettlement groove that holds connecting rod and spherical handle on holding the pole, the resettlement groove with spherical handle looks joint.

Through adopting above-mentioned technical scheme, because the handle can be outstanding outside the stabilizer blade, when operating personnel carried the rack, outstanding handle can influence operating personnel and carry the rack. For example, the protruding handle can catch on some objects, which affects the carrying of the rack. And the outstanding handle can lead to between the stabilizer blade unable fine gathering together to gather together to influence the transport of rack.

Rotate with the drive worm through the connecting rod and be connected to and be provided with the arrangement groove, make when not adjusting the length of stabilizer blade, can collect the handle, make the handle can not influence the transport of rack, thereby make things convenient for operating personnel to carry and carry the rack.

The utility model discloses further set up to: the locating component comprises a locating groove arranged on the connecting rod, a locating spring arranged in the locating groove and a locating block connected in the locating groove in a telescopic sliding mode, wherein the two ends of the locating spring are connected to the locating groove and the locating block respectively, and the driving worm is provided with a clamping groove connected with the locating block in a clamped mode.

Through adopting above-mentioned technical scheme, before connecting rod and drive worm are coaxial, the locating piece can receive the drive worm to its effort for the motion that is close to the constant head tank bottom is done to the locating piece, and the positioning spring is compressed, and the connecting rod of being convenient for and the coaxial setting of drive worm.

When the connecting rod is coaxial with the driving worm, the positioning block does not bear the acting force of the driving worm on the positioning block any more, the elastic potential energy of the positioning spring is released, the positioning block is pushed out of the positioning groove, the positioning block is clamped with the clamping groove, and the positioning of the connecting rod and the driving worm is realized.

The utility model discloses further set up to: the locating slot is provided with two, and two the locating slot uses the axial lead of connecting rod to be the symmetry setting as the symmetry axis, one of them the locating piece is the radius angle setting, another be provided with on the wall that the locating piece is close to flexible tank bottom with the pull rod that the locating slot parallels, be provided with the groove of sliding on the connecting rod, the pull rod with the groove of sliding slides and is connected, just the groove of sliding with the locating slot is linked together, the coaxial cover of positioning spring is established on the pull rod.

Through adopting above-mentioned technical scheme, wherein a locating piece radius angle sets up, makes things convenient for fixed and the separation between connecting rod and the drive worm for carry out preliminary location between connecting rod and the drive worm. Simultaneously, it is suitable to be used for reminding operating personnel the turned angle of connecting rod.

When will fixed link rod and drive worm, take out spherical handle and connecting rod from the resettlement groove earlier, pull the pull rod again for the locating piece is flexible to slide and is connected in the constant head tank, and positioning spring is compressed, the connecting rod of being convenient for and the coaxial setting of drive worm.

After the connecting rod and the driving worm are coaxial, the pull rod is released, the elastic potential energy of the positioning spring is released, the positioning block is pushed out of the positioning groove, the positioning block is clamped with the clamping groove, the connecting rod and the driving worm are positioned, and the handle is conveniently rotated to drive the worm to rotate.

The utility model discloses further set up to: the one end that the seat was kept away from to the telescopic link articulates through rotating the bolt has the installation pole, installation pole wherein one end is provided with the universal wheel, the installation pole other end is the toper setting, just be provided with the logical groove that holds universal wheel and installation pole on the telescopic link.

Through adopting above-mentioned technical scheme, be provided with the universal wheel for when comparatively level and smooth subaerial, operating personnel can directly promote the rack, makes things convenient for operating personnel to carry and carry the rack, has reduced staff's intensity of labour and the operation degree of difficulty.

The installation pole other end is the toper setting, and the pressure between increase installation pole and the ground is conveniently installed the pole and is inserted in earth to improve the stability of rack.

The installation pole is fixed on the telescopic link through rotating the bolt for the installation pole can changeably decide, makes things convenient for operating personnel to select to use the installation pole that universal wheel still toper set up according to the condition of reality, improves operating personnel's maneuverability.

Be provided with logical groove for settle installation pole and universal wheel, prevent that the existence of universal wheel from influencing the stability of rack. Simultaneously, prevent that the installation pole that the toper set up from stabbing operating personnel when the transport, causing the casualties.

The utility model discloses further set up to: and the rotating bolt is in threaded connection with a rotating nut, and the rotating nut is abutted to the telescopic rod.

Through adopting above-mentioned technical scheme, further improve the fixed firmness of installation pole, prevent that the installation pole from taking place to rotate for improve the stationarity of placing of rack.

The utility model discloses further set up to: any one of the containing rods is provided with two binding belts, one end of each binding belt is arranged on the containing rod, the other end of each binding belt is provided with a positioning piece matched with each other, and any one of the containing rods is also provided with a handle.

Through adopting above-mentioned technical scheme, be provided with the binding area for bind the stabilizer blade, make the stabilizer blade of rack can not drop because of the dead weight, make things convenient for operating personnel to carry and carry the rack.

Be provided with the handle, operating personnel can directly mention the rack through the handle, makes things convenient for operating personnel to carry and carry the rack.

Compared with the prior art, the utility model has the advantages that:

1. by arranging the telescopic support legs, the length of the support legs and the volume of the placing frame are reduced, the carrying and the carrying of operators are facilitated, the labor cost is reduced, and the working efficiency of the operators is improved;

2. rotate with the drive worm through the connecting rod and be connected to and be provided with the arrangement groove, make when not adjusting the length of stabilizer blade, can collect the handle, make the handle can not influence the transport of rack, thereby make things convenient for operating personnel to carry and carry the rack.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a plan sectional view of the leg;

FIG. 3 is a schematic structural view of the telescopic rod;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is an enlarged view of portion B of FIG. 1;

FIG. 6 is a plan sectional view of the containment rod;

fig. 7 is an enlarged view of a portion C of fig. 6.

Reference numerals: 100. a placing seat; 200. a support leg; 210. an accommodating rod; 211. accommodating grooves; 212. a limiting groove; 220. a drive assembly; 221. a drive screw; 222. a drive worm gear; 223. a drive worm; 224. a clamping groove; 230. a connecting rod; 231. a handle; 232. a placing groove; 240. a positioning assembly; 241. positioning a groove; 242. a positioning spring; 243. positioning blocks; 244. a sliding groove; 245. a pull rod; 250. a telescopic rod; 251. a sliding block; 252. a limiting block; 260. mounting a rod; 261. rotating the bolt; 262. a through groove; 263. rotating the nut; 264. a universal wheel; 270. a binding band; 271. a positioning member; 280. a handle.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, a portable theodolite placing rack comprises a placing seat 100 and 3 supporting legs 200 arranged on the placing seat 100, wherein each supporting leg 200 comprises an accommodating rod 210 hinged on the placing seat 100 and a telescopic rod 250 connected on the accommodating rod 210 in a sliding manner.

Referring to fig. 1 and 2, an accommodating groove 211 is formed at an end of the accommodating rod 210 away from the placing base 100 along a length direction thereof, and a sliding block 251 slidably connected with the accommodating groove 211 is integrally formed on the telescopic rod 250.

Referring to fig. 3 and 4, two opposite sidewalls of the accommodating groove 211 are respectively provided with a limiting groove 212 along a length direction thereof, and the sliding block 251 is integrally provided with a limiting block 252 adapted to the limiting groove 212 to limit a sliding track of the sliding block 251.

Referring to fig. 4 and 5, a driving assembly 220 for driving the telescopic rod 250 to move is further disposed in the accommodating groove 211, and includes a driving screw 221 disposed in the accommodating groove 211 along a length direction of the accommodating groove 211 and rotatably connected to the accommodating groove 211, a driving worm wheel 222 coaxially sleeved on one end of the driving screw 221 near the placing seat 100, and a driving worm 223 rotatably connected to the accommodating groove 211 and perpendicular to the driving screw 221, wherein the driving worm 223 is engaged with the driving worm wheel 222. And the driving screw 221 passes through the sliding block 251 and is in threaded connection with the sliding block 251 to drive the telescopic rod 250 to move, so that the length of the support leg 200 is adjusted, the placing position of the theodolite is conveniently adjusted, and the theodolite is kept horizontally placed.

Referring to fig. 4 and 5, one end of the driving worm wheel 222 is hinged to a connecting rod 230 through a rotating shaft, the other end of the connecting rod 230 is integrally provided with a knob 231, and the connecting rod 230 is provided with a positioning assembly 240 for positioning the connecting rod. Meanwhile, the accommodating rod 210 is further provided with an accommodating groove 232 for accommodating the connecting rod 230 and the knob 231, and the accommodating groove 232 is clamped with the knob 231 to fix the positions of the connecting rod 230 and the knob 231 and prevent the influence of the handle 231 on the carrying and placing frame of the operator.

In this embodiment, when the end of the extension rod 250 near the top of the placing seat 100 contacts the lower surface of the placing seat 100, the connection rod 230 and the knob 231 are just correspondingly disposed to the placing groove 232, so that the connection rod 230 and the knob 231 can be rotatably disposed in the placing groove 232 to store the connection rod 230 and the knob 231, thereby facilitating the carrying of the placing rack.

Referring to fig. 6 and 7, the positioning assembly 240 includes a positioning groove 241 disposed on the connecting rod 230, a positioning spring 242 disposed in the positioning groove 241, and a positioning block 243 telescopically slidably connected in the positioning groove 241, two ends of the positioning spring 242 are respectively clamped in the positioning groove 241 and the positioning block 243, and the driving worm 223 is provided with a clamping groove 224 clamped with the positioning block 243.

In the present embodiment, the positioning spring 242 is in a natural state after being installed, so as to push the positioning block 243 out of the positioning groove 241, thereby facilitating the clamping connection between the positioning block 243 and the clamping groove 224.

Referring to fig. 6 and 7, two positioning grooves 241 are provided, and the two positioning grooves 241 are symmetrically arranged with the axial line of the connecting rod 230 as a symmetry axis. And one end of one positioning block 243 far away from the bottom of the positioning groove 241 is arranged in a rounded angle, and the other positioning block 243 is integrally provided with a pull rod 245 which is parallel to the positioning groove 241 and close to the wall of the bottom of the telescopic groove. The connecting rod 230 is provided with a sliding groove 244 communicated with the positioning groove 241, and the pull rod 245 is connected in the sliding groove 244 in a sliding manner. Meanwhile, the positioning spring 242 is coaxially sleeved on the pull rod 245.

Referring to fig. 1 and 2, an end of the extension rod 250 away from the standing seat 100 is hinged to a mounting rod 260 through a rotating bolt 261, and in this embodiment, the rotating bolt 261 is disposed at the center of the mounting rod 260. And the telescopic rod 250 is provided with a through groove 262 for accommodating the mounting rod 260. The rotary bolt 261 passes through the through groove 262 and the mounting rod 260 and is in threaded connection with the telescopic rod 250. Meanwhile, the rotating bolt 261 is connected with a rotating nut 263 through threads, and after the installation is completed, the rotating nut 263 is abutted to the telescopic rod 250 so as to fixedly install the rod 260 and facilitate the rotation of the rod 260.

Referring to fig. 1 and 2, one end of the mounting rod 260 is connected with a universal wheel 264 through a screw, the other end of the mounting rod 260 is arranged in a conical shape, the universal wheel 264 can be arranged in the through groove 262, the universal wheel 264 is convenient to store, and the universal wheel 264 is prevented from influencing the stability of the supporting leg 200.

Referring to fig. 1, two binding bands 270 are fixed to any one of the accommodating rods 210 by screws, one end of each of the two binding bands 270 is disposed on the accommodating rod 210, and the other end is disposed with a positioning element 271 engaged with the other end.

In this embodiment, the positioning member 271 includes a button disposed on one binding band 270 and a button hole disposed on the other binding band 270 for fixing the supporting leg 200, so as to facilitate the operator to carry the rack.

Referring to fig. 1 and 5, a handle 280 is hinged to any one of the accommodating rods 210, so that an operator can conveniently carry the rack, and the operator can conveniently carry the rack.

The working process is as follows:

when will carry the rack to measuring the place, operating personnel can directly mention the rack through handle 280, makes things convenient for operating personnel to carry the rack. And because the stand bar 200 of the rack is limited together by the two binding belts 270, the stand bar 200 of the rack can not fall down due to self weight, and the carrying of operators is not influenced.

When the road of transport is comparatively steady, make things convenient for universal wheel 264 to move, can place the rack subaerial, promote the rack operation, make things convenient for operating personnel to carry the rack.

When measuring, open tie 270 earlier, twist again and move swivel nut 263 for swivel nut 263 is not taking place the butt with telescopic link 250, and it rotates to facilitate the installation pole 260, thereby makes universal wheel 264 settle in logical groove 262, prevents that the existence of universal wheel 264 from influencing the stability of rack. Simultaneously, because the installation pole 260 other end is the toper setting, places subaerial when the rack, the installation pole 260 of toper setting can insert in earth to improve the stability of rack.

After the installation rod 260 is rotated, the rotating nut 263 is screwed, so that the rotating nut 263 abuts against the side wall of the telescopic rod 250 to fix the position of the installation rod 260.

The length of the supporting leg 200 is adjusted by taking the knob 231 and the connecting rod 230 out of the placing groove 232, pulling the pull rod 245 to make the positioning block 243 slide in the positioning groove 241, and the positioning spring 242 is compressed, so that the connecting rod 230 and the driving worm 223 are coaxially arranged.

Before the connecting rod 230 and the driving worm 223 are coaxial, the positioning block 243 with the rounded corner is acted by the driving worm 223, so that the positioning block 243 moves close to the bottom of the positioning groove 241, the positioning spring 242 is compressed, and the connecting rod 230 and the driving worm 223 are conveniently and coaxially arranged.

When the connecting rod 230 and the driving worm 223 are coaxial, the positioning block 243 provided with the rounded corner no longer receives the acting force of the driving worm 223 on the positioning block, the elastic potential energy of the positioning spring 242 is released, the positioning block 243 is pushed out of the positioning groove 241, and the positioning block 243 is clamped with the clamping groove 224 to be used for preliminarily positioning the connecting rod 230. Meanwhile, the rotation angle of the connecting rod 230 is properly prompted to the operator.

Then, the pull rod 245 is released, the elastic potential energy of the positioning spring 242 is released, the positioning block 243 is pushed out of the positioning groove 241, and the positioning block 243 is clamped with the clamping groove 224 to position the connecting rod 230.

Rotate spherical handle 231, it rotates to drive worm 223, thereby drive the drive worm wheel 222 with drive worm 223 engaged with and rotate, make the drive screw 221 with the coaxial setting of drive worm wheel 222 rotate, make and do the motion of keeping away from placing seat 100 along holding tank 211 length direction with drive screw 221 screw-thread fit's sliding block 251, thereby make telescopic link 250 do along holding pole 210 length direction and keep away from placing seat 100 motion, realize the purpose of adjusting stabilizer blade 200 length, make the height of rack and operating personnel's height looks adaptation, make things convenient for operating personnel to measure.

After the adjustment of the stand bar 200 is completed, the stand bar 200 is placed on the ground, and the angle of the stand bar 200 is adjusted, so that the placing rack is stably placed on the ground. Simultaneously, can rotate knob 231, finely tune stabilizer blade 200 for the high topography that more adapts to the measurement place of stabilizer blade 200, thereby makes and places 100 level settings, improves the measurement accuracy of theodolite.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a theodolite rack that conveniently carries, its characterized in that is including placing seat (100) to and 3 stabilizer blades (200) of setting on placing seat (100), stabilizer blade (200) are including articulating and holding pole (210) on placing seat (100) to and slide and connect telescopic link (250) on holding pole (210), the one end of holding pole (210) and keeping away from placing seat (100) is provided with holding tank (211) along its length direction, telescopic link (250) slide and connect in holding tank (211), just be provided with drive assembly (220) of drive telescopic link (250) motion in holding tank (211).

2. The portable theodolite placement rack according to claim 1, wherein the driving assembly (220) comprises a driving screw (221) which is arranged in the accommodating groove (211) along the length direction of the accommodating groove (211) and is rotatably connected with the accommodating groove (211), a driving worm wheel (222) which is coaxially sleeved at one end of the driving screw (221) close to the accommodating seat (100), and a driving worm (223) which is rotatably connected in the accommodating groove (211) and is perpendicular to the driving screw (221), wherein the driving worm (223) is meshed with the driving worm wheel (222), a sliding block (251) which is slidably connected with the accommodating groove (211) is arranged on the telescopic rod (250), and the driving screw (221) penetrates through the sliding block (251) and is in threaded connection with the sliding block (251).

3. The portable theodolite placement rack according to claim 2, wherein two opposite side walls of the accommodating groove (211) are provided with limiting grooves (212) along the length direction thereof, and the sliding block (251) is provided with limiting blocks (252) matched with the limiting grooves (212).

4. A portable theodolite placement rack according to claim 2, wherein one end of the driving worm wheel (222) is provided with a connecting rod (230), and the other end of the connecting rod (230) is provided with a knob (231).

5. The portable theodolite placing rack according to claim 4, wherein the connecting rod (230) is rotatably connected with the driving worm wheel (222), a positioning component (240) is arranged on the connecting rod (230), a placing groove (232) for containing the connecting rod (230) and the spherical handle (231) is further arranged on the containing rod (210), and the placing groove (232) is clamped with the spherical handle (231).

6. The theodolite rack of claim 5, wherein the locating component (240) comprises a locating groove (241) formed in the connecting rod (230), a locating spring (242) arranged in the locating groove (241), and a locating block (243) connected in the locating groove (241) in a telescopic sliding manner, wherein two ends of the locating spring (242) are respectively connected to the locating groove (241) and the locating block (243), and the driving worm (223) is provided with a clamping groove (224) which is clamped with the locating block (243).

7. The portable theodolite placement rack according to claim 6, wherein the positioning slots (241) are two, and two of the positioning slots (241) are symmetrically arranged by taking the axial lead of the connecting rod (230) as the symmetry axis, one of the positioning blocks (243) are arranged in a rounded angle, and the other of the positioning blocks (243) is provided with a pull rod (245) parallel to the positioning slots (241) on the wall close to the bottom of the telescopic slot, the connecting rod (230) is provided with a sliding slot (244), the pull rod (245) is connected with the sliding slot (244) in a sliding manner, the sliding slot (244) is communicated with the positioning slots (241), and the positioning spring (242) is coaxially sleeved on the pull rod (245).

8. The portable theodolite placement rack according to claim 1, wherein one end of the telescopic rod (250) far away from the placement seat (100) is hinged to a mounting rod (260) through a rotating bolt (261), one end of the mounting rod (260) is provided with a universal wheel (264), the other end of the mounting rod (260) is in a conical shape, and a through groove (262) for accommodating the universal wheel (264) and the mounting rod (260) is formed in the telescopic rod (250).

9. A portable theodolite placement rack according to claim 8, wherein a rotating nut (263) is screwed on the rotating bolt (261), and the rotating nut (263) abuts against the telescopic rod (250).

10. The portable theodolite placement rack according to claim 1, wherein two binding belts (270) are arranged on any one of the accommodating rods (210), one end of each binding belt (270) is arranged on the accommodating rod (210), the other end of each binding belt is provided with a positioning piece (271) which is matched with the other end of each binding belt, and a handle (280) is further arranged on any one of the accommodating rods (210).