CN213748434U - Construction unwrapping wire measuring device - Google Patents

Abstract

The application relates to a construction unwrapping wire measuring device, it includes the tripod, the tripod includes a supporting bench and a plurality of supporting legs of propping up a supporting bench bottom articulated, the supporting leg is kept away from a supporting bench one end and is provided with the plug pin, a supporting bench pot head is kept away from to the supporting leg and is equipped with the sleeve, the connecting plate has set firmly on the sleeve, the spliced pole has set firmly on the connecting plate, the spout has been seted up on the lateral wall of supporting leg, the spliced pole slides and rotates the setting in the spout along spout length, the plug pin sets up the one end of keeping away from a supporting bench at the sleeve, the tip that a supporting bench was kept away from to the supporting leg has set firmly the non slipping spur. When setting up the tripod on stereoplasm ground or smooth subaerial, slide the sleeve and keep away from the supporting leg, overturn the sleeve again, make the non slipping spur support subaerial, through non slipping spur increase and ground area of contact to frictional force between increase and ground makes the tripod can the stable stay subaerial, and this application has increase tripod installation stability, improves total powerstation measurement accuracy's on the tripod effect.

Description

Construction unwrapping wire measuring device

Technical Field

The application relates to the field of measuring instruments, in particular to a construction paying-off measuring device.

Background

The total station, i.e. the total station type electronic distance measuring instrument, is a high-tech measuring instrument integrating light, machine and electricity into one body, and is a surveying and mapping instrument system integrating the horizontal angle, vertical angle, distance and height difference measuring functions into one body. Compared with the optical theodolite, the electronic theodolite changes the optical scale into the photoelectric scanning scale, and replaces manual optical micrometer reading with automatic recording and displaying reading, so that the angle measurement operation is simplified, and the generation of reading errors can be avoided. The total station is called because the instrument can be arranged once to complete all measurement work on the station. The method is widely applied to the field of precision engineering measurement or deformation monitoring of overground large-scale buildings, underground tunnel construction and the like.

The patent with the publication number of CN210219087U discloses a mapping device for geotechnical engineering, which comprises a tripod and a total station installed on the tripod, wherein the tripod comprises a supporting table and a plurality of telescopic supporting legs hinged on the bottom surface of the supporting table, an installation table for installing the total station is arranged on the supporting table, a plurality of adjusting bolts are arranged between the installation table and the supporting table, and the adjusting bolts are circumferentially and uniformly distributed along the axis of the installation table; the mount table upper surface is provided with the bubble spirit level, and the one end that a supporting bench was kept away from to every supporting leg is provided with the peg graft hole coaxial with the supporting leg, is provided with most advanced peg graft down in the peg graft hole. During the use, strut the landing leg of tripod, will insert the nail and insert the underground, can fix the tripod subaerial, begin the survey and drawing work.

With respect to the related art among the above, there are the following drawbacks: when the survey and drawing personnel develop the survey and drawing work on brick ground or rock ground, the peg of tripod is difficult to insert deeply in the ground, and the fixed stability of tripod is relatively poor, influences measuring result.

SUMMERY OF THE UTILITY MODEL

In order to improve tripod stability, improve measurement accuracy, this application provides a construction unwrapping wire measuring device.

The application provides a construction unwrapping wire measuring device adopts following technical scheme:

a construction paying-off measuring device comprises a tripod, wherein the tripod comprises a supporting platform and a plurality of supporting legs hinged at the bottom of the supporting platform, the end of the supporting leg far away from the supporting platform is provided with an inserting nail, the end of the supporting leg far away from the supporting platform is sleeved with a sleeve, one end of the sleeve close to the supporting platform is fixedly provided with a connecting plate, one end of the connecting plate far away from the supporting platform is fixedly provided with a connecting column, the vertical side wall of the supporting leg is provided with a chute along the length direction of the supporting leg, the connecting column is arranged in the chute in a sliding way along the length of the chute, and rotates in the chute, the axis of the connecting column is parallel to the hinged shaft of the supporting and pushing, the inserted pin is arranged at one end of the sleeve far away from the supporting platform, the supporting leg is kept away from the tip of brace table and has set firmly the non slipping spur, be provided with the fixed subassembly that is used for fixed sleeve when the sleeve is coaxial to be cup jointed at the supporting leg expansion end on the supporting leg.

Through adopting above-mentioned technical scheme, the surveying personnel is when setting up the tripod, prop open the supporting leg of tripod, make the support that the tripod can be accomplished to the inserted pin on the supporting leg inserted soft ground, when setting up the tripod on stereoplasm ground or smooth subaerial, untie fixed subassembly, slide the sleeve and keep away from the supporting leg, deviate from the non slipping spur from the sleeve, rotate the sleeve again to the lateral wall and be on a parallel with ground, make the non slipping spur support subaerial, through non slipping spur increase and ground area of contact, and increase and frictional force between ground, make the tripod can the stable support subaerial, increase tripod installation stability, improve total powerstation measurement accuracy on the tripod.

Optionally, the fixing assembly is a bolt, a first through hole is formed in the side wall of the supporting leg, a second through hole matched with the first through hole is formed in the outer wall of the sleeve, the sleeve is coaxially sleeved on the end portion, far away from the supporting table, of the supporting leg, the first through hole is aligned with the second through hole, and the bolt is arranged in the first through hole and the second through hole in a penetrating mode.

Through adopting above-mentioned technical scheme, cup joint on the supporting leg, cover the non slipping spur the back, use the bolt to pass second through-hole on the sleeve and the supporting leg on first through-hole simultaneously, can be fixed sleeve and supporting leg, make the plug pin stable on the sleeve, the surveying personnel of being convenient for support the tripod subaerial.

Optionally, the sleeve is kept away from the one end of brace table and is seted up the slip hole, insert the nail and slide and wear to establish in the slip hole, the one end that inserts the nail and be close to the supporting leg sets firmly the limiting plate that is used for restricting to insert nail roll-off slip hole, the coaxial cup joint of cover barrel casing is when the tip that the brace table was kept away from to the supporting leg, and the non slipping spur butt is inserting the nail and has the one end of limiting plate.

Through adopting above-mentioned technical scheme, rotate the sleeve at surveying and mapping personnel and stretch out the back with the non slipping spur, will insert the nail and take out from the sleeve, can prevent effectively that the nail of inserting from exposing the injury people, the security is high, will insert the nail and insert the sleeve and cup joint the sleeve on the supporting leg after, the supporting leg is lived to inserting the nail in the sleeve butt and is stretched out the sleeve, makes to insert the nail and support tripod stability good.

Optionally, a first elastic piece used for driving the plug pins to be retracted into the sleeves is arranged in the limiting plate, the first elastic piece is a first spring, and one end of the first spring is abutted to the limiting plate, and the other end of the first spring is abutted to the inner bottom wall of the sleeves.

Through adopting above-mentioned technical scheme, at surveying and mapping personnel with the sleeve back of taking off from the supporting leg, first spring orders about and inserts in the nail income sleeve to effectively prevent that surveying and mapping personnel from removing when inserting the nail injured, security when improving surveying and mapping personnel operation.

Optionally, the sleeve is parallel to the length direction of the supporting leg and is provided with a sucker on the side wall parallel to the ground.

Through adopting above-mentioned technical scheme, rotate the sleeve at surveying and mapping personnel, make on the tripod non slipping spur support subaerial back, the operation sleeve makes the sucking disc adsorb subaerial on the sleeve to further prevent that the tripod from sliding subaerial, further improve tripod support stability.

Optionally, be provided with on the connecting plate and be used for restricting the spliced pole and slide and be close to the spacing subassembly of brace table, spacing subassembly is including pulling pin and second elastic component, the coaxial third venthole of having seted up on the spliced pole, the coaxial slip of pulling pin is worn to establish in the third venthole, the spout is kept away from and is seted up the slot with the pulling pin adaptation on the interior diapire of brace table one end, the second elastic component is used for ordering about the pulling pin and is close to the supporting leg, the second elastic component is the second spring, the second spring housing is established on pulling the pin, the one end and spliced pole fixed connection, the other end and the pulling pin fixed connection of second spring.

Through adopting above-mentioned technical scheme, draw the back with the sleeve from the supporting leg at surveying and mapping personnel, make the spliced pole on the connecting plate slide to the slot position in the spout, under second spring action power, the pulling pin is promoted and is inserted in the slot to make the sleeve rotate around the slot on the supporting leg, make the sucking disc adsorb subaerial back, can effectively keep sucking disc and non slipping spur stable, further improve the support fixed effect of tripod.

Optionally, a vent pipe is fixedly arranged in the sleeve, one end of the vent pipe is communicated with the bottom of the sucker, the other end of the vent pipe is communicated with the side wall of the sleeve, which is far away from the sucker, and an exhaust valve for opening and closing the vent pipe is arranged on the sleeve.

Through adopting above-mentioned technical scheme, when surveying and mapping personnel need take off the sucking disc from subaerial, operation discharge valve makes the breather pipe open, and the breather pipe is opened the back, through breather pipe and external intercommunication in the sucking disc for aerify in the sucking disc, the sucking disc can break away from convenient to use from subaerial fast.

Optionally, a baffle is fixedly arranged on one side, away from the sucker, of the sleeve, the baffle is fixedly connected with the connecting plate, and when the sleeve is coaxial with the supporting leg, the baffle is abutted to the side wall of the supporting leg.

Through adopting above-mentioned technical scheme, when surveying personnel rotated the sleeve and cup jointed the supporting leg, rotated sleeve to baffle butt on the supporting leg, can make sleeve and the coaxial alignment of supporting leg, made things convenient for surveying personnel slip sleeve to live the supporting leg and live, convenient to use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a tripod is erected on hard ground or smooth ground, the sleeve slides away from the supporting legs, the anti-skid blocks are separated from the sleeve, then the sleeve is turned over, the anti-skid blocks are supported on the ground, the contact area between the anti-skid blocks and the ground is increased, the friction force between the anti-skid blocks and the ground is increased, the tripod can be stably supported on the ground, the mounting stability of the tripod is increased, and the measuring precision of a total station on the tripod is improved;

2. after a surveying and mapping worker rotates the sleeve to extend the anti-skid block, the plug pins are extracted from the sleeve, the plug pins can be effectively prevented from being exposed to the outside to hurt people, the safety is high, after the plug pins are inserted into the sleeve and the sleeve is sleeved on the supporting legs, the supporting legs abut against the plug pins in the sleeve to extend out of the sleeve, and the stability of the plug pin supporting tripod is good;

3. surveying personnel rotates the sleeve, makes on the tripod non slipping spur support subaerial back, and the operation sleeve makes the sucking disc adsorb subaerial on the sleeve to further prevent that the tripod from sliding subaerial, further improve tripod support stability.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of a tripod in a state that a sleeve of the embodiment of the application is sleeved on a support column.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 4 is a schematic structural view of a tripod in a state where a suction cup of the embodiment of the present application is sucked to the ground.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.

Description of reference numerals: 1. a tripod; 11. a support table; 12. supporting legs; 2. inserting a nail; 21. a slide hole; 22. a limiting plate; 23. a first spring; 3. a sleeve; 31. a connecting plate; 32. connecting columns; 321. a chute; 4. anti-skid blocks; 5. a bolt; 51. a first through hole; 52. a second through hole; 6. a suction cup; 61. a limiting component; 611. pulling the pin; 612. a second spring; 62. a third through hole; 63. a slot; 7. a breather pipe; 71. an exhaust valve; 711. sealing the sheet; 712. a handle; 713. a third spring; 8. a baffle plate; 9. a total station.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses construction unwrapping wire measuring device. Referring to figure 1, comprising a tripod 1 and a total station 9, the tripod 1 comprises a support table 11 and a plurality of support legs 12 hinged at the bottom of the support table 11. The number of the support legs 12 may be three or four, and in this embodiment, the number of the support legs 12 is three. Three supporting legs 12 are evenly arranged along the circumference of the supporting platform 11 at intervals, the supporting legs 12 are hinged with the supporting platform 11, and the axes of the hinge shafts of the supporting legs 12 are tangent to the concentric circles of the supporting platform 11 and are horizontal to the table top of the supporting platform 11. The total station 9 is mounted clamped on top of the support table 11.

Referring to fig. 2 and 3, one end of the supporting leg 12 far away from the supporting platform 11 is provided with a plug pin 2 and a skid proof block 4 for supporting on the ground. Sleeve 3 has been cup jointed to the tip of supporting leg 12, and insert nail 2 sets up the one end of keeping away from supporting leg 12 at sleeve 3, and non slipping spur 4 is installed on supporting leg 12. By pulling the sleeve 3 out of the support leg 12, the anti-skid blocks 4 can be exposed outside, and the anti-skid blocks 4 can be plugged on the ground instead of the plug pins 2. The anti-slip blocks 4 are made of rubber and used for increasing the friction force with the ground.

Referring to fig. 2 and 3, a strip-shaped sliding groove 321 is formed in the side wall, parallel to the two sides of the supporting leg 12, of the supporting leg 12 along the length direction of the supporting leg 12, the sleeve 3 is provided with a connecting plate 31 welded to the end, matched with the size of the supporting leg 12, of the opening, and the connecting plate 31 is welded to the end, away from the sleeve 3, of the connecting plate 31 and is provided with a connecting column 32 with a circular cross section. The connecting column 32 and the sleeve 3 are both positioned on the same side of the connecting plate 31. The connecting plate 31 and the connecting columns 32 on the sleeve 3 are symmetrically arranged, and the two connecting columns 32 are respectively inserted in the sliding grooves 321 on the two sides of the supporting leg 12 in a sliding manner.

Referring to fig. 2 and 3, the connecting column 32 slides to the end of the sliding groove 321 close to the supporting platform 11, and when the sleeve 3 is coaxial with the supporting leg 12, the sleeve 3 sleeves the end of the supporting leg 12 far away from the supporting platform 11. When the connecting column 32 slides to the other end of the sliding groove 321, the sleeve 3 is separated from the supporting leg 12 and can rotate by using the connecting column 32 as a rotating shaft. In order to fix the sleeve 3 on the support leg 12 when the sleeve 3 is fitted over the support leg 12, the support leg 12 is provided with a fixing member.

Referring to fig. 2 and 4, in this embodiment, the fixing component is the plug pin 5, the supporting leg 12 is provided with a first through hole 51 along the radial direction of the supporting leg itself, the sleeve 3 is provided with a second through hole, and when the sleeve 3 is sleeved on the movable end of the supporting leg 12, the first through hole 51 is aligned with the second through hole 52 in a coaxial manner. At this time, the socket 5 is inserted into the first through hole 51 and the second through hole 52, and the sleeve 3 and the support leg 12 are fixed.

In other embodiments, the securing assembly may also be a bolt. Offer the perforation that lets in sleeve 3 on sleeve 3's the lateral wall, offer the screw hole with the bolt adaptation in supporting leg 12 corresponding position, through passing the perforation on sleeve 3 with the bolt, again with bolt threaded connection in the screw hole on supporting leg 12, can fix sleeve 3 on supporting leg 12.

Referring to fig. 2 and 3, a sliding hole 21 matched with the size of the inserted nail 2 is formed in one end, away from the opening, of the sleeve 3, and the inserted nail 2 is slidably arranged in the sliding hole 21 in a penetrating mode. The tip of the inserted nail 2 extends out of the sleeve 3, the other end of the inserted nail 2 is coaxially welded with a limiting plate 22 in a protruding mode, and the limiting plate 22 is used for limiting the inserted nail 2 to slide out of the sleeve 3 from the sliding hole 21. Still be equipped with in the sleeve 3 and be used for driving about the peg 2 income first elastic component in the sleeve 3, in this embodiment, first elastic component is first spring 23, and first spring 23 cover is established on peg 2, and the one end and the spacing welded fastening of portion, the other end of first spring 23 and the interior diapire welded fastening of sleeve 3. When the sleeve 3 is sleeved on the supporting leg 12, the antiskid block 4 is abutted against one end of the inserted nail 2 with the limiting plate 22, so that the first spring 23 is compressed, and the inserted nail 2 is pushed out of the sliding hole 21; after sleeve 3 pulled down from supporting leg 12, first spring 23 promoted to insert in nail 2 income sleeve 3 to effectively prevent when non slipping spur 4 contacts subaerial, the pedestrian contacted inserts nail 2 around tripod 1 and causes the injury, improves tripod 1's security.

Referring to fig. 2 and 3, in order to further fix the tripod 1 and prevent the tripod 1 from sliding horizontally on a smooth ground, a suction cup 6 is further provided on the outer wall of the sleeve 3. The sucking disc 6 is located at the lateral wall that sleeve 3 is close to 1 inside central line of tripod under the state that three supporting legs 12 of tripod 1 are accomodate, after sleeve 3 breaks away from supporting leg 12, rotates sleeve 3, can overturn the one side that sleeve 3 has sucking disc 6 to being parallel with ground. The sucking disc 6 can be a plurality of in array on sleeve 3 to the fixed effect of absorption to the ground of reinforcing, in this embodiment, there are four sucking discs 6 in the even array of sleeve 3.

Referring to fig. 2 and 3, rotating sleeve 3 and connecting sleeve 3 in-process at supporting leg 12, in order to make sleeve 3 align with supporting leg 12 fast, improve sleeve 3's the operating efficiency that accomodates, the last an organic whole of sleeve 3 is provided with and is used for restricting sleeve 3 pivoted baffle 8. The baffle 8 is positioned on one side of the sleeve 3 far away from the suction cup 6, and two ends of the baffle are respectively welded and fixed with the connecting plate 31. When the sleeve 3 is turned over, the sleeve 3 is turned over to be coaxially aligned with the supporting legs 12, and the baffle plates 8 abut against the side walls of the supporting legs 12, so that the effect of limiting the rotation of the sleeve 3 is achieved.

Referring to fig. 2 and 3, in order to prevent the sleeve 3 from sliding on the support leg 12 again after the suction cup 6 adsorbs the ground, and to make the tripod 1 unstable in standing, the connecting plate 31 is provided with a stopper assembly 61 for restricting the connecting column 32 from sliding close to the support base 11. In this embodiment, the position limiting assembly 61 includes a pulling pin 611 and a second elastic member. The inner bottom wall of the sliding groove 321 close to the movable end of the supporting leg 12 is provided with a slot 63 with a size matched with the pulling pin 611, the connecting column 32 is coaxially provided with a third through hole 62 for the pulling pin 611 to slide into, and the pulling pin 611 is slidably inserted into the third through hole 62. When the connecting post 32 slides to the end of the sliding slot 321 close to the movable end of the supporting leg 12, the third through hole 62 on the connecting post 32 is aligned with the slot 63 in the sliding slot 321, and the second elastic member drives the pulling pin 611 to be inserted into the slot 63, so as to limit the relative sliding of the sleeve 3 on the sliding slot 321. In this embodiment, the second elastic member is a second spring 612, one end of the second spring 612 and one end of the pull pin 611 far away from the supporting leg 12 are welded and fixed, and the other end of the second spring 612 is connected and fixed with the connecting plate 31, and the second spring 612 is used for driving the pull pin 611 to slide toward the supporting leg 12.

Referring to fig. 4 and 5, the suction cup 6 is removed from the floor surface to make it easier for the operator to remove it. The sleeve 3 is internally welded with a vent pipe 7, the vent pipe 7 is coaxial with the sucker 6, one end of the vent pipe 7 is opened to the bottom of the sucker 6, the other end of the vent pipe 7 is opened to the side wall of the sleeve 3 parallel to the side wall of the sucker 6, and the sleeve 3 is provided with an exhaust valve 71 for opening and closing the vent pipe 7. The exhaust valve 71 comprises a handle 712 having one end passing through the vent pipe 7, a sealing piece 711 connected to one end of the handle 712 penetrating into the suction cup 6 and capable of sealing the opening of the vent pipe 7 in the suction cup 6, and a third spring 713 sleeved on the handle 712 and used for driving the handle 712 to move away from the suction cup 6. When the operator deflates the suction cup 6, the operator presses the handle 712 to open the opening of the air pipe 7 in the suction cup 6 to supply air, thereby releasing the pressure in the suction cup 6 to remove the suction cup 6.

The implementation principle of the construction pay-off measuring device in the embodiment of the application is as follows: surveying personnel props up supporting leg 12 of tripod 1 when setting up the tripod, makes the support that tripod 1 can be accomplished to the peg 2 on the supporting leg 12 insertion soft ground. When a tripod is erected on hard ground or smooth ground, the bolt 5 is pulled out from the first through hole 51 on the sleeve 3 and the second through hole 52 on the supporting leg 12, so that the sleeve 3 can be slid away from the supporting leg 12, and the anti-skid block 4 is pulled out from the sleeve 3. The sleeve 3 is rotated until the side wall is parallel to the ground, so that the antiskid blocks 4 are supported on the ground instead of the inserted nails 2. Increase and ground area of contact through non slipping spur 4 to increase and frictional force between the ground, make tripod 1 can the stable stay subaerial, increase tripod 1 installation stability improves total powerstation 9 measurement accuracy on tripod 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a construction unwrapping wire measuring device, includes tripod (1), tripod (1) is including a plurality of supporting legs (12) of brace table (11) and brace table (11) bottom articulated, the one end that brace table (11) were kept away from in supporting leg (12) is provided with plug pin (2), its characterized in that: one end of the supporting leg (12) far away from the supporting platform (11) is sleeved with a sleeve (3), one end of the sleeve (3) close to the support platform (11) is fixedly provided with a connecting plate (31), a connecting column (32) is fixedly arranged at one end of the connecting plate (31) far away from the supporting platform (11), the vertical side wall of the supporting leg (12) is provided with a sliding groove (321) along the length direction of the supporting leg (12), the connecting column (32) is arranged in the sliding groove (321) along the length of the sliding groove (321), and rotates in the chute (321), the axis of the connecting column (32) is parallel to a hinged shaft for supporting and pushing, the plug pin (2) is arranged at one end of the sleeve (3) far away from the support platform (11), the end part of the supporting leg (12) far away from the supporting platform (11) is fixedly provided with an antiskid block (4), the supporting leg (12) is provided with a fixing component for fixing the sleeve (3) when the sleeve (3) is coaxially sleeved at the movable end of the supporting leg (12).

2. A construction payoff measuring device as claimed in claim 1, wherein: the fixing assembly is a bolt (5), a first through hole (51) is formed in the side wall of the supporting leg (12), a second through hole (52) matched with the first through hole (51) is formed in the outer wall of the sleeve (3), the sleeve (3) is coaxially sleeved on the end portion, far away from the supporting table (11), of the supporting leg (12), the first through hole (51) is aligned with the second through hole (52), and the bolt (5) is simultaneously penetrated through the first through hole (51) and the second through hole (52).

3. A construction payoff measuring device as claimed in claim 1, wherein: sliding hole (21) have been seted up to sleeve (3) one end of keeping away from brace table (11), insert nail (2) and slide and wear to establish in sliding hole (21), the one end that inserts nail (2) and be close to supporting leg (12) sets firmly limiting plate (22) that are used for restricting to insert nail (2) roll-off sliding hole (21), sleeve (3) cover is coaxial to be cup jointed when the tip of brace table (11) is kept away from in supporting leg (12), and non slipping spur (4) butt has the one end of limiting plate (22) inserting nail (2).

4. A construction payoff measurement device as claimed in claim 3, wherein: be provided with in limiting plate (22) and be used for driving about the first elastic component of inserting nail (2) income sleeve (3), first elastic component is first spring (23), the one end and limiting plate (22) butt of first spring (23), the other end and the interior diapire butt of sleeve (3).

5. A construction payoff measuring device as claimed in claim 1, wherein: the sleeve (3) is parallel to the length direction of the supporting legs (12) and is provided with a sucker (6) on the side wall which is parallel to the ground.

6. The construction payoff measuring device as set forth in claim 5, wherein: be provided with on connecting plate (31) and be used for restricting the connecting column (32) and slide and be close to spacing subassembly (61) of brace table (11), spacing subassembly (61) is including pulling pin (611) and second elastic component, coaxial third through-hole (62) of having seted up on connecting column (32), pulling pin (611) coaxial slip is worn to establish in third through-hole (62), set up slot (63) with pulling pin (611) adaptation on the interior diapire of brace table (11) one end is kept away from in spout (321), the second elastic component is used for driving to pull pin (611) and is close to supporting leg (12), the second elastic component is second spring (612), second spring (612) cover is established on pulling pin (611), the one end and connecting column (32) fixed connection, the other end and pulling pin (611) fixed connection of second spring (612).

7. The construction payoff measuring device as set forth in claim 5, wherein: the suction cup is characterized in that a vent pipe (7) is fixedly arranged in the sleeve (3), one end of the vent pipe (7) is communicated with the bottom of the suction cup (6), the other end of the vent pipe is communicated with the side wall of the sleeve (3) far away from the suction cup (6), and an exhaust valve (71) used for opening and closing the vent pipe (7) is arranged on the sleeve (3).

8. The construction payoff measuring device as set forth in claim 5, wherein: one side of sleeve (3) keeping away from sucking disc (6) has set firmly baffle (8), baffle (8) and connecting plate (31) fixed connection, when sleeve (3) and supporting leg (12) are coaxial, the lateral wall butt of baffle (8) and supporting leg (12).

Images