CN113863384A

CN113863384A - Construction protection supporting device and protection method for medium maintenance bituminous pavement inspection well

Info

Publication number: CN113863384A
Application number: CN202111185163.8A
Authority: CN
Inventors: 吴明辉
Original assignee: Individual
Current assignee: GUANGZHOU MUNICIPAL ENGINEERING MACHINERY CONSTRUCTION CO LTD
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2021-12-31
Anticipated expiration: 2041-10-12
Also published as: CN113863384B

Abstract

The invention discloses a construction protection supporting device for an inspection well for a medium maintenance asphalt pavement, which comprises a cover plate, wherein the cover plate is connected with an inspection well assembly, and a plurality of U-shaped pedals are arranged in the inspection well assembly; the invention also provides a construction protection method for the medium maintenance bituminous pavement inspection well, which comprises a plurality of steps. The invention is convenient for workers to assemble quickly, does not influence the access of the workers during maintenance and use, ensures that the maintenance work can be carried out normally, and can well transmit force to the side wall in the concrete tank when large-scale mechanical equipment operates, thereby improving the bearing capacity of the cover plate through the supporting force of the side wall of the concrete tank, avoiding the situation that the cover plate is damaged and collapsed due to small bearing capacity, and effectively ensuring the normal operation of the large-scale machinery on the cover plate.

Description

Construction protection supporting device and protection method for medium maintenance bituminous pavement inspection well

Technical Field

The invention relates to the technical field of supporting devices, in particular to a construction protection supporting device and a protection method for an inspection well of a medium maintenance asphalt pavement.

Background

At present, the damage and renovation of municipal asphalt pavements are an important component of municipal engineering, and how to repair damaged pavements quickly and better without influencing the production and life of citizens has become an important engineering problem to be solved by municipal departments.

In the road surface repair process, often meet the restriction of road surface inspection shaft, the inspection shaft upper end is sheltered from through the apron, the support dynamics of apron is limited, can't guarantee the normal current of large-scale machinery, too big pressure probably leads to the apron impaired to break, the collapse appears even, influence the interior pipeline of well, traditional prop up solid method through the stand, set up the pipeline and can't apply for the exhibition in the well, a small amount of stands can not be fine assurance to the support dynamics of apron, lead to large-scale machinery to be unable to use, influence prosthetic quality and efficiency.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a construction protection supporting device and a protection method for an inspection well of a medium maintenance asphalt pavement.

In order to achieve the purpose, the invention adopts the following technical scheme:

a construction protection supporting device for an intermediate maintenance asphalt pavement inspection well comprises a cover plate, wherein an inspection well assembly is connected onto the cover plate, a plurality of U-shaped pedals are installed in the inspection well assembly, a fixing mechanism is arranged between every two adjacent U-shaped pedals, two supporting tubes are arranged on the fixing mechanism, supporting rods are slidably installed in the supporting tubes, a rotating sleeve is rotatably sleeved at the upper ends of the supporting rods, a contact part is fixed at the upper end of the rotating sleeve and is abutted against the inspection well assembly, the upper end of the contact part is abutted against the lower end of the cover plate, a fifth notch is arranged on one side of the upper end of the contact part, a square tube is rotatably sleeved in the fifth notch, a bearing groove is formed in the square tube and is provided with a moving rod, one end of the moving rod is abutted against the inspection well assembly, and the upper ends of the square tube and the moving rod are both abutted against the cover plate, the movable rod is provided with a clamping mechanism, the clamping mechanism is connected with the square tube, the supporting tube is provided with a positioning mechanism, the positioning mechanism is connected with the supporting rod, the positioning mechanism is connected with a U-shaped rod, the U-shaped rod is connected with a regulating mechanism, a sleeve is arranged in the regulating mechanism, the sleeve is connected with a fixing mechanism, and the two square tubes, the square tube and the supporting tube and the square tube and the sleeve are connected through telescopic mechanisms.

Preferably, for the pressure that the better reduction apron bore, can be fine shift pressure, the inspection shaft subassembly is including contradicting at the concrete groove of apron lower extreme, the upper end of apron is contradicted and is had concrete pipe and basic unit, the concrete pipe is located the basic unit, the well lid is installed to the upper end of concrete pipe, the upper end of well lid and the upper end parallel and level setting of basic unit, be equipped with the round mouth on the apron, the diameter of round mouth is the same with the diameter of concrete pipe, round mouth and concrete pipe are corresponding, and a plurality of U type footboards are settled in proper order on the one end lateral wall in concrete pipe and concrete groove from top to bottom.

Preferably, in order to facilitate stable pressure transmission and improve the support firmness, the fixing mechanism includes two L-shaped clamping plates disposed between two adjacent U-shaped pedals, the two L-shaped clamping plates are disposed in opposite directions, side walls in the two L-shaped clamping plates respectively abut against the two U-shaped pedals, a clamping mechanism is disposed in the L-shaped clamping plates, the clamping plates abut against the U-shaped pedals, a vertical tube is fixed to an upper end of one of the L-shaped clamping plates, two supporting tubes are respectively rotatably connected to two sides of the vertical tube, a second adjusting nut is rotatably sleeved on an upper end of the vertical tube, a fourth screw is slidably sleeved in the vertical tube, the second adjusting nut and the fourth screw are screwed together, a crank is mounted on the second adjusting nut, an upper end of the fourth screw is fixed to a lower end of the other L-shaped clamping plate, and a second positioning nut is screwed on the fourth screw, install the extensible member jointly between two L type splint, install fastening bolt on the extensible member.

Preferably, in order to promote the fastness of being connected with U type footboard, guarantee that can be better transmit power to the lateral wall in concrete groove through U type footboard, fixture is including setting up the movable plate on L type splint, be equipped with the fourth opening on the one end lateral wall in the L type splint, movable plate slidable mounting is in L type splint, be fixed with the third screw rod on the intraoral one end lateral wall of fourth opening, the movable plate slides and cup joints on the third screw rod, splint are fixed in the upper end of movable plate, the spiral shell is closed on the third screw rod and is had first regulation and control nut, first regulation and control nut is located one side that L type splint were kept away from to the movable plate.

Preferably, for the stability of position between better assurance stay tube and the bracing piece to guarantee the stability of power transmission, positioning mechanism includes the U template of slidable mounting on the stay tube, the both ends of U type pole are rotated respectively and are cup jointed the both sides at the U template, the lower extreme of stay tube is equipped with the opening, bottom in the U template is fixed with the second spur rack, the second spur rack runs through the opening and extends to in the stay tube, one side of bracing piece is equipped with first opening, install first spur rack in the first opening, first spur rack and second spur rack mesh mutually, U type pole is connected with regulation and control mechanism.

Preferably, in order to guarantee the stability that the U template removed, guarantee the stability of position before stay tube and the bracing piece, make a whole of its better formation, the transmission of assurance power, bottom both sides in the U template all are fixed with two locating levers, the both sides of stay tube all are fixed with two locating pieces, and four locating levers slide respectively and cup joint in four locating pieces, the both sides of stay tube all are fixed with the setting element, the setting element is located the U template, be fixed with first spring between setting element and the U template jointly.

Preferably, in order to conveniently adjust the length between the sleeve and the push rod, adapt to the inclination degree of the supporting tube, effectively support and ensure the stability of force transmission, the adjusting and controlling mechanism comprises a shaft sleeve rotatably sleeved on the U-shaped rod, a push rod is fixed at one end of the shaft sleeve and slidably sleeved in the sleeve, the sleeve is rotatably sleeved on one side of a clamping plate at the upper end, a plurality of positioning holes are formed in one side of the push rod at equal intervals, a positioning bolt is screwed on the sleeve and extends into one of the positioning holes.

Preferably, for the convenience of connecting to the different length of adaptation that can be fine guarantees the stability of connecting and the stability of power transmission, telescopic machanism all installs the couple in two positioning rings with two positioning rings of one side of two square pipe lower extreme both sides including fixing at two stay tube upper ends, two sleeve pipe upper ends, two square pipe, and one side of two couples all is fixed with first screw rod, and two first screw rods all run through the setting on the support, one side of support is equipped with third opening and two second openings, the third opening is located between two second openings, and two first screw rods run through the setting respectively in two second openings, and the one end of two first screw rods all is located the third opening, spiral shell has two first set nuts on the first screw rod, and two first set nuts all are located the second opening.

Preferably, for the regulation and the fixed of convenient carriage release lever, the better apron of contradicting accepts the pressure that comes from the apron and shifts it, the solid mechanism of card is including setting up the through hole at the bearing groove lower extreme, the lower extreme of carriage release lever is fixed with the connecting piece, the lower extreme of connecting piece is rotated and is cup jointed the fourth spur rack, one side of fourth spur rack is fixed with the swash plate, the spiral shell closes on the swash plate and has been equipped with the second screw rod, second screw rod and carriage release lever are inconsistent, the lower extreme both sides of square pipe all are equipped with the third spur rack, fourth spur rack and two third spur racks mesh mutually.

The invention also provides a using method of the construction protection supporting device for the medium maintenance asphalt pavement inspection well, which comprises the following steps:

s1, opening the well cover, and enabling a worker to enter the concrete tank through the U-shaped pedal;

s2, a worker places two L-shaped clamping plates between two adjacent U-shaped pedals, the fourth screw rod can be pushed to move by rotating a second regulating nut to enable the L-shaped clamping plates to be abutted against the two U-shaped pedals respectively, the worker rotates a second positioning nut to enable the second positioning nut to descend to be abutted against the second regulating nut for fixing, meanwhile, the worker rotates a fastening bolt to guarantee firmness, the worker can move a moving plate to enable one side of the moving plate and one side of the L-shaped clamping plate to be matched with each other to clamp the U-shaped pedals, and the first regulating nut is rotated to guarantee the firmness of clamping;

s3, a worker rotates the two supporting tubes and pushes the supporting rods to move, the upper end of the abutting part abuts against the lower end of the cover plate, one side of the abutting part is tightly abutted against one side in the concrete groove, after abutting, the worker rotates the second screw to separate the second screw from the moving rod, the fourth straight rack can rotate at the moment, the worker can conveniently pull the moving rod to move, one end of the moving rod moves to abut against the side wall in the concrete groove, the upper ends of the moving rod and the square pipe are both abutted against the lower end of the cover plate, the moving rod and the square pipe are both obliquely arranged, round openings are exposed, the worker can conveniently move, after the worker finishes adjustment, the second screw is rotated to rotate the inclined plate, the fourth straight rack and the third straight rack can be meshed, and the position of the moving rod is effectively fixed;

s4, the push rod can move in the sleeve along with the movement of the support tube, when the support tube is adjusted and fixed, the staff pulls the push rod to move in the sleeve, therefore, the U-shaped plate can be well and stably moved into the supporting tube under the action of the positioning rod and the positioning block, the second straight rack is meshed with the first straight rack, after the meshing is finished, the position of the supporting rod is fixed, a worker can rotate the positioning bolt to fix the position of the push rod, the meshing stability is ensured, after the fixing is finished, the worker takes out the bracket to ensure that the two hooks on the bracket are respectively buckled with the two corresponding positioning rings, after the buckling is finished, the staff rotates first set nut, makes two first set nuts in same second opening contradict with the intraoral both ends lateral wall of second opening respectively, and the position of fixed first screw rod is accomplished to connect fixedly, guarantees the stability between the part.

The invention has the beneficial effects that:

1. the second regulating nut can be rotated by rotating the crank handle by the worker, so that the fourth screw rod can be well pushed to move with the L-shaped clamping plate fixed with the fourth screw rod, the distance between the two L-shaped clamping plates can be adjusted, the two L-shaped clamping plates can be conveniently abutted against the two adjacent U-shaped pedals, a supporting point can be effectively found in the well, the two U-shaped pedals can be well utilized as the supporting point and a force transmission point, the force can be transmitted to the concrete tank through the U-shaped pedals, the two U-shaped pedals can well disperse the force, the situation that the U-shaped pedals cannot bear bending deformation due to only one U-shaped pedal is avoided, the influence of pipelines in the well can be avoided, the supporting force is ensured, the worker can well ensure that the second positioning nut is abutted against the second regulating nut by rotating the second positioning nut, and the abutting force of the L-shaped clamping plate and the U-shaped pedal can be well ensured, meanwhile, the worker can well enable the clamping plate and the L-shaped clamping plate in the same horizontal plane to be matched with each other to clamp the U-shaped pedal and guarantee the supporting performance of a supporting point of further lifting clamping force through the first regulating nut by moving the movable plate and the clamping plate, when external force is transmitted, the clamping plate and the L-shaped clamping plate can be abutted against the U-shaped pedal to transmit force, the U-shaped plate can transmit force to the inner wall of the concrete groove, and therefore through well wall support, the situation that the cover plate is easily damaged, broken and collapsed due to the support of the cover plate is avoided;

2. when the L-shaped clamping plates move, the telescopic pieces can well move, so that the two L-shaped clamping plates can be conveniently and stably moved, the two L-shaped clamping plates can be stably moved, the problem of further assisting in lifting the L-shaped clamping plates can be guaranteed through the fastening bolts, the stability of force transmission is guaranteed, and the supporting capacity is better improved;

3. through the rotation of the two supporting pipes and the adjustment of the position relation of the supporting pipes and the supporting rods, the abutting pieces can well drive the square pipes and the moving rods to abut against the lower ends of the cover plates, the force of the cover plates is conveniently transmitted to the square pipes and the moving rods when the cover plates are stressed, and then the force is transmitted to the inner walls of the concrete tanks through the cooperation of the square pipes, the moving rods and the matching assemblies, so that the supporting strength of the cover plates is effectively improved, the bearing capacity of the cover plates is better improved, and the large-scale machine is convenient to use;

4, the second screw rod can be rotated to prevent the second screw rod from being abutted against the moving rod when the position of the moving rod is adjusted, so that the fourth spur rack can be conveniently rotated, the moving rod can be conveniently adjusted at the moment, the moving rod is abutted against the side wall in the concrete groove, after the moving rod is adjusted in place, the second screw rod can be abutted against the moving rod by rotating the second screw rod, the fourth spur rack and the third spur rack can be well meshed, so that the stability of the position of the moving rod can be effectively ensured, the supporting force is ensured, the loosening and sliding are avoided, the friction with the inner wall of the concrete groove can be effectively passed through except the support between the structures, the interference with the cover plate is ensured, and the cover plate is effectively supported;

5. after the preliminary installation is finished, the staff can push the push rod to enable the push rod to be inserted into the sleeve, at the same time, the push rod can drive the U-shaped rod to pull the U-shaped plate to move towards the supporting tube through the sleeve, meanwhile, under the action of the positioning rod and the positioning block, the stability of the movement is ensured, the second straight rack in the U-shaped plate is convenient to be meshed with the first straight rack in the supporting rod, the stability of the supporting rod and the position of the supporting tube can be effectively ensured, the abutting part and the cover plate are effectively enabled to be firmly abutted against the concrete groove, the loosening and loosening conditions are avoided, the supporting force for the cover plate is further improved, the positioning bolt is rotated, the positioning bolt is screwed into the corresponding positioning hole, the supporting tube is pulled, the supporting tube and the supporting rod are enabled to keep the existing length and angle, the stability is improved through the triangular structures of the supporting tube, the sleeve and the vertical tube, the abutting part can be firmly abutted against the cover plate, the force borne by the cover plate is convenient to pass through the abutting part, The supporting rod and the supporting tube are transmitted to the vertical tube and the fourth screw rod, the force is transmitted to the U-shaped pedal and the concrete groove through the vertical tube, the force of the cover plate is offset and differentiated through the side wall of the concrete groove, meanwhile, the bearing capacity of the cover plate can be effectively improved, after the adjustment is finished, a worker can move the first screw rod, a hook on one side of the first screw rod is hung in a corresponding positioning ring, so that the angle and the position relation between two square tubes can be further fixed, the square tubes and the sleeves can be effectively supported through the supporting tube, the supporting force of the square tubes on the cover plate is further improved, the bearing capacity of the cover plate is improved, the supporting tube and the supporting rod form a triangle through the telescopic assembly and the square tubes, the square tubes form a near-sighted triangle structure through the telescopic assembly, the sleeves and the push rods, the triangle structure is stable, and the square tubes and the cover plate can be well supported, can bear the pressure to which the pressure bearing device is subjected;

6. when the telescopic mechanism is assembled, the two first positioning nuts in the same second opening can be screwed to be mutually abutted and not abutted with any side wall in the second opening, the first screw rod can be well moved, the first screw rod is moved after the hook is hung in the corresponding positioning ring, so that a tensioning state is realized, and meanwhile, the two first positioning nuts in the same second opening are rotated to be respectively abutted against the side walls at two ends in the second opening, so that the overall stability can be well ensured, the conditions of loosening and shaking are avoided, the stability of the distance between two square pipes, between the square pipe and the supporting pipe and between the square pipe and the sleeve pipe can be well ensured through the telescopic mechanism, the parts can be well stabilized, the support is facilitated, the deformation of the parts is avoided, and the support force is further improved;

7. when the cover plate is stressed, the force can be well transmitted to the contact piece, the square tube and the moving rod, the contact piece transmits the force to the vertical tube through the supporting rod and the supporting tube, and then the force is transmitted to the U-shaped pedal through the action of the L-shaped clamping plate and the clamping plate, meanwhile, the square tube can also transmit force to the supporting tube and the push rod, the force is transmitted to the push rod to push the push rod to move towards the sleeve, the second straight rack can be better meshed with the first straight rack, the position stability is ensured, the firmness of the distance between the supporting rod and the moving rod is further improved, simultaneously, through on transmitting the sleeve pipe with power, the sleeve pipe atress gives the stay tube a power of pushing down through the push rod, and messenger's stay tube that can be fine drags the conflict piece with the bracing piece and moves down, and the other end lateral wall in conflict piece and the concrete inslot is contradicted, also can further transmit power to the concrete groove on, promotes the bearing capacity of its holding power assurance apron.

8. When the manhole cover is installed, one end of the concrete pipe is abutted against the concrete groove through the cover plate, when the manhole cover plate is stressed, force can be well transmitted and decomposed to the concrete groove, the situation that the force is directly transmitted to the cover plate when the traditional force is applied is further avoided, and the bearing capacity of the manhole cover is further improved;

in conclusion, the invention facilitates the rapid assembly of workers, does not influence the access of the workers during the maintenance and use, ensures the normal operation of the maintenance work, and can well transmit the force to the side wall in the concrete tank when large mechanical equipment operates, thereby improving the bearing capacity of the cover plate through the supporting force of the side wall of the concrete tank, avoiding the damage and the collapse of the cover plate due to the small bearing capacity, and effectively ensuring the normal operation of the large machinery on the cover plate.

Drawings

FIG. 1 is a connecting structure diagram of a construction protection supporting device for an intermediate repair asphalt pavement inspection well according to the present invention;

FIG. 2 is a schematic view of the internal structure of a supporting tube of the construction protection supporting device for the medium maintenance asphalt pavement inspection well according to the present invention;

FIG. 3 is a connection structure diagram of a U-shaped plate and a supporting pipe of the construction protection supporting device for the medium maintenance asphalt pavement inspection well provided by the invention;

FIG. 4 is a structural diagram of a telescopic mechanism of the construction protection supporting device for the inspection well of the medium maintenance asphalt pavement;

FIG. 5 is a structural view of the inside of a casing of the construction protection supporting device for the inspection well of the medium maintenance asphalt pavement;

FIG. 6 is a top view of a concrete trough for a middle-repair asphalt pavement inspection well construction protection supporting device according to the present invention;

FIG. 7 is an enlarged view of the portion A of the construction protection supporting device for the middle repair asphalt pavement inspection well, which is provided by the invention;

fig. 8 is an enlarged view of a construction protection supporting device for an intermediate repair asphalt pavement inspection well, which is provided by the invention and is at the position B.

In the figure: 1 crank, 2 vertical pipes, 3 concrete grooves, 4 concrete pipes, 5 cover plates, 6 fastening bolts, 7 telescopic parts, 8U-shaped pedals, 9 supporting rods, 10 first notches, 11 first straight racks, 12 supporting pipes, 13 second straight racks, 14U-shaped plates, 15 positioning rods, 16U-shaped rods, 17 first springs, 18 positioning blocks, 19 second notches, 20 positioning plates, 21 supports, 22 first positioning nuts, 23 first screw rods, 24 hooks, 25 third notches, 26 shaft sleeves, 27 positioning bolts, 28 positioning holes, 29 push rods, 30 sleeves, 31 through openings, 32 square pipes, 33 moving rods, 34 abutting parts, 35 base layers, 36 positioning parts, 37 third straight racks, 38 fourth straight racks, 39 connecting parts, 40 second screw rods, 41 inclined plates, 42 clamping plates, 43 first nuts, 44 moving plates, 45 third screw rods, 46L-shaped clamping plates, 47 fourth notches, 48 fourth screw rods, 47 fourth screw rods, 39 straight racks, 40 second screw rods, 41 inclined plates, 42 clamping plates, 43 first adjusting nuts, 44 moving plates, 45 third screw rods, 46L-shaped clamping plates, 47 fourth notches, 48 fourth screw rods, 6 straight rack plates, 6U-shaped supporting rods, 9 supporting rods, 20 straight racks, 24 straight racks, 25 straight racks, 27 positioning bolts, 25 straight racks, 24 positioning nuts, 24 positioning bolts, 24 positioning nuts, 24 positioning bolts, 24 positioning nuts, 24 positioning bolts, 24 positioning nuts, 24 positioning bolts, and the like pieces, and the like pieces, four positioning, 49 second positioning nuts, 50 well covers, 51 second regulating nuts, 52 positioning rings, 53 round openings, 54 rotating sleeving parts, 55 fifth openings and 56 bearing grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-8, a be used for well to repair bituminous paving inspection shaft construction protection strutting arrangement, including apron 5, be connected with the inspection shaft subassembly on the apron 5, multiple parts such as pipeline can be installed in it, install a plurality of U type footboards 8 in the inspection shaft subassembly, make things convenient for the staff to get into the inspection shaft through U type footboard 8 in, conveniently overhaul the maintenance operation.

In the invention, the inspection well assembly comprises a concrete groove 3 abutting against the lower end of a cover plate 5, the upper end of the cover plate 5 abuts against a concrete pipe 4 and a base layer 35, the concrete pipe 4 is positioned in the base layer 35, the upper end of the concrete pipe 4 is provided with a well cover 50, the upper end of the well cover 50 is flush with the upper end of the base layer 35, the cover plate 5 and the concrete groove 3 are both formed by pouring reinforced concrete, the concrete pipe 4 has strong bearing capacity, the cover plate 5 is provided with a round mouth 53, the diameter of the round mouth 53 is the same as that of the concrete pipe 4, the round mouth 53 corresponds to the concrete pipe 4, when the inspection well is installed, the round mouth 53 is arranged on one side of the cover plate 5, the cover plate 5 abuts against the upper end of the concrete groove 3, the round mouth 53 corresponds to the concrete groove 3, the side wall of one end in the round mouth 53 is flush with one side of the concrete groove 3, the concrete pipe 4 corresponds to the round mouth 53, and one end of the concrete pipe 4 is positioned on the upper end of the concrete groove 3, can compare in traditional round mouth 53 and set up at the middle part on the lateral wall of power transmission to concrete tank 3 like this, can reduce the power that apron 5 received, help protecting apron 5, a plurality of U type footboard 8 from top to bottom settle in proper order on the one end lateral wall in concrete pipe 4 and concrete tank 3, make things convenient for the staff to trample U type footboard 8 and get into concrete tank 3 in, conveniently carry out the operation.

In the invention, a fixing mechanism is arranged between two adjacent U-shaped pedals 8, two supporting tubes 12 are arranged on the fixing mechanism, the supporting tubes 12 are rotatably connected with the fixing mechanism and are convenient to adjust, the fixing mechanism comprises two L-shaped clamping plates 46 arranged between the two adjacent U-shaped pedals 8, the two L-shaped clamping plates 46 are reversely arranged, the side walls in the two L-shaped clamping plates 46 are respectively abutted against the two U-shaped pedals 8, a clamping mechanism is arranged in the L-shaped clamping plates 46, the clamping plates 42 are arranged on the clamping mechanism and are abutted against the U-shaped pedals 8, the clamping plates 42 and the L-shaped clamping plates 46 can be well matched and tightly clamp the U-shaped pedals 8 through the clamping mechanism, the force can be conveniently transmitted to the U-shaped pedals 8, and the stability of the force transmission is ensured.

In the invention, the clamping mechanism comprises a moving plate 44 arranged on an L-shaped clamping plate 46, a fourth notch 47 is arranged on one end side wall in the L-shaped clamping plate 46, the moving plate 44 is slidably mounted in the L-shaped clamping plate 46 and can move stably, a third screw 45 is fixed on one end side wall in the fourth notch 47, the moving plate 44 is slidably sleeved on the third screw 45, a clamping plate 42 is fixed at the upper end of the moving plate 44, a first regulating nut 43 is screwed on the third screw 45, the first regulating nut 43 is positioned on one side of the moving plate 44 far away from the L-shaped clamping plate 46, when clamping is needed, a worker enables the clamping plate 42 to drive the moving plate 44 to move stably along the third screw 45, the clamping force can be well matched with the L-shaped clamping plate 46 to clamp the U-shaped pedal 8, two adjacent side walls of the L-shaped clamping plate 46 are abutted against the U-shaped pedal 8, one end side wall of the clamping plate 42 is abutted against the U-shaped pedal 8, and the clamping force can be well ensured through the first regulating nut 43, when power transmission comes, can be fine transmit U type footboard 8 with power through splint 42 and L type splint 46 to through the fastening of first regulation and control nut 43, the stability of power transmission can be fine assurance, can effectively avoid splint 42 and L type splint 46 to the not enough condition that takes off appears in U type footboard 8 centre gripping dynamics, can guarantee the stability of support.

In the invention, a vertical pipe 2 is fixed at the upper end of one L-shaped clamping plate 46, two supporting pipes 12 are respectively and rotatably connected to two sides of the vertical pipe 2, a certain included angle is formed between the two supporting pipes 12, so that force can be well transmitted to the vertical pipe 2, a second regulating nut 51 is rotatably sleeved at the upper end of the vertical pipe 2, a fourth screw 48 is slidably sleeved in the vertical pipe 2, the second regulating nut 51 is screwed with the fourth screw 48, a crank 1 is mounted on the second regulating nut 51, the second regulating nut 51 can be driven to rotate through the crank 1, so that the fourth screw 48 can be well lifted, the upper end of the fourth screw 48 is fixed at the lower end of the other L-shaped clamping plate 46, a second positioning nut 49 is screwed on the fourth screw 48, the lifting of the fourth screw 48 can well adjust the distance between the two L-shaped clamping plates 46, so as to conveniently abut against the two U-shaped pedals 8 respectively, after the abutting is completed, the staff can rotate second set nut 49 and descend, makes it contradict with second regulatory nut 51, can avoid fourth screw rod 48 to descend, guarantees the fastening of contradicting, installs extensible member 7 between two L type splint 46 jointly, installs fastening bolt 6 on the extensible member 7, supplementary fastening of guaranteeing to contradict to enable the steady motion of two L templates 46.

In the invention, the support rod 9 is slidably mounted in the support tube 12 to facilitate smooth movement of the support rod 9, the upper end of the support rod 9 is rotatably sleeved with the rotating sleeve 54, the upper end of the rotating sleeve 54 is fixedly provided with the abutting piece 34, the abutting piece 34 abuts against the inspection well component, when in use, the support tube 12 is rotated and the support rod 9 is moved, the upper end and one side of the abutting piece 34 can be well abutted against the side wall of the cover plate 5 and the side wall of the concrete tank 3 respectively, the upper end of the abutting piece 34 abuts against the lower end of the cover plate 5, so that the pressure of the cover plate 5 can be well received and transferred, one side of the upper end of the abutting piece 34 is provided with a fifth notch 55, the fifth notch 55 is rotatably sleeved with the square tube 32, the square tube 32 is provided with a bearing groove 56, the bearing groove 56 is provided with the movable rod 33, one end of the movable rod 33 abuts against the inspection well component, the upper ends of the square tube 32 and the movable rod 33 both abut against the cover plate 5, after the abutting part 34 is adjusted, the upper end of the square pipe 32 and the upper end of the moving rod 33 are abutted against the cover plate 5, the moving rod 33 is moved to enable one end of the moving rod 33 to be abutted against the side wall in the concrete groove 3, the position of the square pipe 32 and the position of the moving rod 33 are guaranteed through friction force assistance, the moving rod 33 is provided with a clamping mechanism, the clamping mechanism is connected with the square pipe 32, and the stability of the position between the moving rod 33 and the square pipe 32 can be well guaranteed through the clamping mechanism.

In the present invention, the locking mechanism includes a through hole 31 disposed at the lower end of the bearing groove 56, a connecting member 39 is fixed at the lower end of the moving rod 33, a fourth spur rack 38 is rotatably sleeved at the lower end of the connecting member 39, a sloping plate 41 is fixed at one side of the fourth spur rack 38, a second screw 40 is screwed on the sloping plate 41, the second screw 40 is in contact with the moving rod 33, third spur racks 37 are disposed at both sides of the lower end of the square tube 32, the fourth spur rack 38 is engaged with the two third spur racks 37, when in use, a worker rotates the second screw 40 to rotate the sloping plate 41, so that the fourth spur rack 38 can rotate and cannot be engaged with the third spur racks 37, thereby facilitating the moving rod 33 to move, after the adjustment is completed, the second screw 40 is rotated to make the sloping plate 41 drive the fourth spur rack 38 to be engaged with the third spur racks 37, thereby ensuring the position stability between the moving rod 33 and the square tube 32, and making the cover plate 5 well, the pressure to which the lid 5 is subjected is largely transferred to the square tube 32 and the travel bar 33.

In the invention, the supporting tube 12 is provided with a positioning mechanism which is connected with the supporting rod 9, the distance between the supporting tube 12 and the supporting rod 9 can be well fixed through the positioning mechanism, the positioning mechanism is connected with the U-shaped rod 16, the U-shaped rod 16 is connected with a regulating mechanism, a sleeve 30 is arranged in the regulating mechanism, the sleeve 30 is connected with the fixing mechanism, and after the position of the abutting part 34 is fixed in an initial step, the positioning mechanism can be operated through the operation of the regulating mechanism, so that the distance between the supporting tube 12 and the supporting rod 9 can be well fixed, and the pressure on the supporting tube 12 can be dispersed through the regulating mechanism, so that the supporting tube 12 can be better protected, and the bearing force of the supporting tube can be improved.

In the invention, the positioning mechanism comprises a U-shaped plate 14 which is slidably arranged on a supporting pipe 12, two ends of a U-shaped rod 16 are respectively rotatably sleeved on two sides of the U-shaped plate 14, an opening is arranged at the lower end of the supporting pipe 12, a second straight rack 13 is fixed at the bottom in the U-shaped plate 14, the second straight rack 13 penetrates through the opening and extends into the supporting pipe 12, a first notch 10 is arranged at one side of a supporting rod 9, a first straight rack 11 is arranged in the first notch 10, the first straight rack 11 is meshed with the second straight rack 13, the U-shaped rod 16 is connected with a regulating mechanism, after the abutting part 34 and the cover plate 5 abut against the concrete groove 3, the U-shaped rod 16 can drive the U-shaped plate 14 to move through the regulating mechanism, the U-shaped plate 14 stably moves towards the supporting pipe 12 under the action of the positioning rod 15 and the positioning block 18, the second straight rack 13 is meshed with the first straight rack 11, and after meshing is finished, the position of the supporting rod 9 is fixed.

In the invention, two positioning rods 15 are fixed on two sides of the bottom in the U-shaped plate 14, two positioning blocks 18 are fixed on two sides of the supporting tube 12, the four positioning rods 15 are respectively sleeved in the four positioning blocks 18 in a sliding manner, positioning pieces 36 are fixed on two sides of the supporting tube 12, the positioning pieces 36 are positioned in the U-shaped plate 14, a first spring 17 is jointly fixed between the positioning pieces 36 and the U-shaped plate 14, the position of the U-shaped plate 14 can be well ensured through the first spring 17, the position relation between the U-shaped plate 14 and the supporting tube 12 is ensured, the falling is avoided, and the installation and the fixation are convenient.

In the invention, the regulating mechanism comprises a shaft sleeve 26 which is rotatably sleeved on the U-shaped rod 16, a push rod 29 is fixed at one end of the shaft sleeve 26, the push rod 29 is slidably sleeved in a sleeve 30, the sleeve 30 is rotatably sleeved on one side of a clamping plate 42 positioned at the upper end, a plurality of positioning holes 28 are formed in one side of the push rod 29 at equal intervals, positioning bolts 27 are screwed on the sleeve 30, the positioning bolts 27 extend into one of the positioning holes 28, after the abutting part 34 and the cover plate 5 abut against the concrete tank 3, a worker can move the push rod 29 in the sleeve 30, the U-shaped rod 16 can be pulled well to enable the second straight rack 13 to be meshed with the first straight rack 11, the position of the supporting rod 9 is fixed, and the worker can rotate the positioning bolts 27 to insert into the corresponding positioning holes 28, so that the firmness of connection is ensured.

In the invention, the two square pipes 32, the square pipe 32 and the support pipe 12 and the square pipe 32 and the sleeve 30 are connected through the telescopic mechanism, the telescopic mechanism can well play a role of supporting and limiting, which is helpful for further transferring force and is convenient for lifting the supporting force of the cover plate 5, the telescopic mechanism comprises ten positioning rings 52 which are fixed at the upper ends of the two support pipes 12, the upper ends of the two sleeve pipes 30, one sides of the two square pipes 32 and two sides of the lower ends of the two square pipes 32, hooks 24 are respectively arranged in the two positioning rings 52 at the same side, first screw rods 23 are respectively fixed at one side of the two hooks 24, the two first screw rods 23 are respectively arranged on the bracket 21 in a penetrating way, one side of the bracket 21 is provided with a third gap 25 and two second gaps 19, the third gap 25 is positioned between the two second gaps 19, the two first screw rods 23 are respectively arranged in the two second gaps 19 in a penetrating way, one end of each of the two first screws 23 is located in the third opening 25, the two first positioning nuts 22 are screwed on the first screws 23, the two first positioning nuts 22 are located in the second opening 19, the worker takes out the support 21 to enable the two hooks 24 on the support 21 to be buckled with the two corresponding positioning rings 52 respectively, after the buckling is completed, the worker rotates the first positioning nuts 22 to enable the two first positioning nuts 22 in the same second opening 19 to be abutted against the side walls at the two ends in the second opening 19 respectively, the position of the first screw 23 is fixed, the connection and the fixation are completed, and the stability between the parts is ensured.

The invention also provides a using method of the construction protection supporting device for the middle repair asphalt pavement inspection well, which is characterized by comprising the following steps of:

s1, opening the well cover 50, and enabling a worker to enter the concrete tank 3 through the U-shaped pedal 8;

s2, a worker places two L-shaped clamping plates 46 between two adjacent U-shaped pedals 8, rotates a second adjusting nut 51 to enable a fourth screw 48 to push the L-shaped clamping plates 46 to move, enables the L-shaped clamping plates 46 to be respectively abutted against the two U-shaped pedals 8, rotates a second positioning nut 49 to enable the second positioning nut 49 to descend to be abutted against the second adjusting nut 51 for fixing, rotates a fastening bolt 6 to ensure firmness, moves a moving plate 44 to enable one side of the moving plate 44 to be matched with one side of the L-shaped clamping plates 46 to clamp the U-shaped pedals 8, and rotates a first adjusting nut 43 to ensure the firmness of clamping;

s3, a worker rotates the two support pipes 12 and pushes the support rods 9 to move, the upper ends of the abutting pieces 34 abut against the lower end of the cover plate 5, one sides of the abutting pieces 34 are tightly abutted against one side in the concrete groove 3, after abutting, the worker rotates the second screw 40 to separate the second screw from the moving rod 33, the fourth straight rack 38 can rotate, the worker can conveniently pull the moving rod 33 to move, one end of the moving rod 33 moves to abut against the side wall in the concrete groove 3, the upper ends of the moving rod 33 and the square pipe 32 abut against the lower end of the cover plate 5, the moving rod 33 and the square pipe 32 are obliquely arranged to expose the round mouth 53, the worker can conveniently move, after adjustment is completed, the worker rotates the second screw 40 to rotate the inclined plate 41, the fourth straight rack 38 can be meshed with the third straight rack 37, and the position of the moving rod 33 is effectively fixed;

s4, the push rod 29 can move in the sleeve 30 along with the movement of the support tube 12, after the support tube 12 is adjusted and fixed, the worker pulls the push rod 29 to move in the sleeve 30, so that the U-shaped plate 14 can move stably in the support tube 12 under the action of the positioning rod 15 and the positioning block 18, the second spur rack 13 is meshed with the first spur rack 11, after the meshing is finished, the position of the support rod 9 is fixed, the worker can rotate the positioning bolt 27 to fix the position of the push rod 29, the meshing stability is ensured, after the fixing is finished, the worker takes out the bracket 21, two hooks 24 on the bracket 21 are respectively buckled with two corresponding positioning rings 52, after the buckling is finished, the worker rotates the first positioning nuts 22 to respectively enable two first positioning nuts 22 in the same second opening 19 to respectively abut against the side walls at two ends in the second opening 19, the position of the first screw rod 23 is fixed, connection and fixation are completed, and stability among components is guaranteed.

In the invention, when the manhole cover 50 is used, a worker can enter the concrete tank 3 through the U-shaped pedals 8, the worker places the two L-shaped clamping plates 46 between the two adjacent U-shaped pedals 8, the second regulating nut 51 is rotated to enable the fourth screw 48 to push the L-shaped clamping plates 46 to move, the L-shaped clamping plates 46 can respectively abut against the two U-shaped pedals 8, at the moment, the worker rotates the second positioning nut 49 to enable the second positioning nut 49 to descend to abut against the second regulating nut 51 for fixing, meanwhile, the worker rotates the fastening bolt 6 to ensure the firmness, the worker can move the movable plate 44 to enable one side of the movable plate 44 and one side of the L-shaped clamping plate 46 to be matched to clamp the U-shaped pedals 8, and when the first regulating nut 43 is rotated to ensure the clamping firmness, the worker rotates the two support pipes 12 and pushes the support rod 9 to move, so that the upper end of the abutting part 34 abuts against the lower end of the cover plate 5, one side of the abutting part 34 is tightly abutted against one side in the concrete tank 3, after abutting, a worker rotates the second screw 40 to separate the second screw from the moving rod 33, at the moment, the fourth spur rack 38 can rotate to facilitate the worker to pull the moving rod 33 to move, one end of the moving rod 33 moves to abut against the side wall in the concrete tank 3, the upper ends of the moving rod 33 and the square pipe 32 are abutted against the lower end of the cover plate 5, the moving rod 33 and the square pipe 32 are obliquely arranged to expose the round mouth 53, so that the worker can move conveniently, after the worker finishes adjustment, the second screw 40 is rotated to rotate the inclined plate 41, the fourth spur rack 38 can be meshed with the third spur rack 37, the position of the moving rod 33 is effectively fixed, the push rod 29 can move in the sleeve 30 along with the movement of the support pipe 12, after the worker finishes adjustment and fixation of the support pipe 12, the worker pulls the push rod 29 to move the sleeve 30, make U-shaped plate 14 that can be fine like this move to the stay tube 12 steadily under the effect of locating lever 15 and locating piece 18, make second spur rack 13 and first spur rack 11 mesh, the meshing finishes the back, the rigidity of bracing piece 9, the staff can rotate the position of positioning bolt 27 fixed push rod 29, guarantee the stability of meshing, after the fixing finishes, the staff takes out support 21, make two couples 24 on the support 21 respectively with two holding rings 52 lock joints that correspond, after the lock joint finishes, the staff rotates first positioning nut 22, make two first positioning nuts 22 in the same second opening 19 respectively contradict with the both ends lateral wall in the second opening 19, the position of fixed first screw rod 23, accomplish and connect fixedly, guarantee the stability between the part.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a be used for well repairing bituminous paving inspection shaft construction protection strutting arrangement, includes apron (5), its characterized in that: the inspection well comprises a cover plate (5), an inspection well component is connected to the cover plate (5), a plurality of U-shaped pedals (8) are installed in the inspection well component, a fixing mechanism is arranged between every two adjacent U-shaped pedals (8), two supporting tubes (12) are arranged on the fixing mechanism, supporting rods (9) are installed in the supporting tubes (12) in a sliding mode, a rotating sleeve part (54) is rotatably sleeved on the upper ends of the supporting rods (9), a contact part (34) is fixed to the upper end of the rotating sleeve part (54), the contact part (34) is in contact with the inspection well component, the upper end of the contact part (34) is in contact with the lower end of the cover plate (5), a fifth notch (55) is formed in one side of the upper end of the contact part (34), a square tube (32) is rotatably sleeved in the fifth notch (55), a bearing groove (56) is formed in the square tube (32), and a moving rod (33) is installed in the bearing groove (56), the one end and the inspection shaft subassembly of carriage release lever (33) are inconsistent, the upper end of square pipe (32) and carriage release lever (33) all contradicts with apron (5), be equipped with the solid mechanism of card on carriage release lever (33), the solid mechanism of card and square pipe (32) are connected, be equipped with positioning mechanism on stay tube (12), positioning mechanism and bracing piece (9) are connected, be connected with U type pole (16) on the positioning mechanism, be connected with regulation and control mechanism on U type pole (16), be equipped with sleeve pipe (30) in the regulation and control mechanism, sleeve pipe (30) and fixed establishment are connected, all connect through telescopic machanism between two square pipes (32), between square pipe (32) and stay tube (12) and between square pipe (32) and sleeve pipe (30).

2. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: the inspection well subassembly is including contradicting concrete groove (3) at apron (5) lower extreme, the upper end of apron (5) is contradicted and is had concrete pipe (4) and basic unit (35), concrete pipe (4) are located basic unit (35), well lid (50) are installed to the upper end of concrete pipe (4), the upper end of well lid (50) and the upper end parallel and level setting of basic unit (35), be equipped with round mouth (53) on apron (5), the diameter of round mouth (53) is the same with the diameter of concrete pipe (4), round mouth (53) and concrete pipe (4) are corresponding, and a plurality of U type footboard (8) are settled in proper order from top to bottom on the one end lateral wall in concrete pipe (4) and concrete groove (3).

3. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: the fixing mechanism comprises two L-shaped clamping plates (46) arranged between two adjacent U-shaped pedals (8), the two L-shaped clamping plates (46) are arranged in a reverse mode, the side walls in the two L-shaped clamping plates (46) are respectively abutted to the two U-shaped pedals (8), a clamping mechanism is arranged in each L-shaped clamping plate (46), a clamping plate (42) is arranged on each clamping mechanism, the clamping plates (42) are abutted to the U-shaped pedals (8), a vertical pipe (2) is fixed at the upper end of one L-shaped clamping plate (46), the two supporting pipes (12) are respectively connected to two sides of the vertical pipe (2) in a rotating mode, a second regulating nut (51) is sleeved on the upper end of the vertical pipe (2) in a rotating mode, a fourth screw rod (48) is sleeved in the vertical pipe (2) in a sliding mode, the second regulating nut (51) is screwed with the fourth screw rod (48), and a regulating crank (1) is installed on the second regulating nut (51), the upper end of fourth screw rod (48) is fixed at the lower extreme of another L type splint (46), the spiral shell has second set nut (49) on fourth screw rod (48), installs expansion piece (7) jointly between two L type splint (46), install fastening bolt (6) on expansion piece (7).

4. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 3, characterized in that: the clamping mechanism comprises a moving plate (44) arranged on an L-shaped clamping plate (46), a fourth opening (47) is formed in one end side wall in the L-shaped clamping plate (46), the moving plate (44) is slidably mounted in the L-shaped clamping plate (46), a third screw (45) is fixed to one end side wall in the fourth opening (47), the moving plate (44) is slidably sleeved on the third screw (45), the clamping plate (42) is fixed to the upper end of the moving plate (44), a first regulating nut (43) is screwed on the third screw (45), and the first regulating nut (43) is located on one side, far away from the L-shaped clamping plate (46), of the moving plate (44).

5. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: positioning mechanism includes U template (14) of slidable mounting on stay tube (12), the both ends of U type pole (16) are rotated respectively and are cup jointed the both sides in U template (14), the lower extreme of stay tube (12) is equipped with the opening, bottom in U template (14) is fixed with second spur rack (13), second spur rack (13) run through the opening and extend to in stay tube (12), one side of bracing piece (9) is equipped with first opening (10), install first spur rack (11) in first opening (10), first spur rack (11) and second spur rack (13) mesh mutually, U type pole (16) are connected with regulation and control mechanism.

6. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 5, characterized in that: the utility model discloses a positioning device, including U template (14), bottom both sides in U template (14) all are fixed with two locating levers (15), the both sides of stay tube (12) all are fixed with two locating pieces (18), and four locating levers (15) slide respectively and cup joint in four locating pieces (18), the both sides of stay tube (12) all are fixed with setting element (36), setting element (36) are located U template (14), be fixed with first spring (17) jointly between setting element (36) and U template (14).

7. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: the adjusting and controlling mechanism comprises a shaft sleeve (26) which is rotatably sleeved on the U-shaped rod (16), a push rod (29) is fixed at one end of the shaft sleeve (26), the push rod (29) is slidably sleeved in a sleeve (30), the sleeve (30) is rotatably sleeved on one side of a clamping plate (42) at the upper end, a plurality of positioning holes (28) are formed in one side of the push rod (29) at equal intervals, a positioning bolt (27) is screwed on the sleeve (30), and the positioning bolt (27) extends into one of the positioning holes (28).

8. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: the telescopic mechanism comprises ten positioning rings (52) fixed at the upper ends of two supporting pipes (12), the upper ends of two sleeves (30), one sides of two square pipes (32) and two sides of the lower ends of the two square pipes (32), hooks (24) are installed in the two positioning rings (52) on the same side, first screw rods (23) are fixed on one sides of the two hooks (24), the two first screw rods (23) are arranged on a support (21) in a penetrating manner, a third notch (25) and two second notches (19) are arranged on one side of the support (21), the third notch (25) is positioned between the two second notches (19), the two first screw rods (23) are arranged in the two second notches (19) in a penetrating manner respectively, one ends of the two first screw rods (23) are positioned in the third notch (25), two first positioning nuts (22) are screwed on the first screw rods (23), the two first positioning nuts (22) are both positioned in the second gap (19).

9. The construction protection supporting device for the intermediate repair bituminous pavement inspection well according to claim 1, characterized in that: the solid mechanism of card is including setting up through-hole (31) at bearing groove (56) lower extreme, the lower extreme of carriage release lever (33) is fixed with connecting piece (39), the lower extreme of connecting piece (39) is rotated and is cup jointed fourth spur rack (38), one side of fourth spur rack (38) is fixed with swash plate (41), the spiral shell is gone up in swash plate (41) and is had second screw rod (40), second screw rod (40) and carriage release lever (33) are inconsistent, the lower extreme both sides of square pipe (32) all are equipped with third spur rack (37), fourth spur rack (38) and two third spur rack (37) mesh mutually.

10. A construction protection method for an intermediate repair bituminous pavement inspection well is characterized by comprising the following steps:

s1, opening the well cover (50), and enabling a worker to enter the concrete tank (3) through the U-shaped pedal (8);

s2, a worker places two L-shaped clamping plates (46) between two adjacent U-shaped pedals (8), the second adjusting nut (51) is rotated to enable the fourth screw (48) to push the L-shaped clamping plates (46) to move, the L-shaped clamping plates (46) are enabled to be respectively abutted against the two U-shaped pedals (8), at the moment, the worker rotates the second positioning nut (49) to enable the second positioning nut (49) to descend to be abutted against the second adjusting nut (51) for fixing, meanwhile, the worker rotates the fastening bolt (6) to ensure firmness, the worker can move the moving plate (44) to enable one sides of the moving plate (44) and the L-shaped clamping plates (46) to be matched to clamp the U-shaped pedals (8), and the first adjusting nut (43) is rotated to ensure the firmness of clamping;

s3, a worker rotates the two support pipes (12) and pushes the support rod (9) to move, so that the upper end of the abutting part (34) abuts against the lower end of the cover plate (5), one side of the abutting part (34) is tightly abutted against one side in the concrete groove (3), after abutting, the worker rotates the second screw (40) to separate the second screw from the moving rod (33), at the moment, the fourth straight rack (38) can rotate, the worker can conveniently pull the moving rod (33) to move, one end of the moving rod (33) is moved to abut against the side wall in the concrete groove (3), the upper ends of the moving rod (33) and the square pipe (32) are both abutted against the lower end of the cover plate (5), the moving rod (33) and the square pipe (32) are both obliquely arranged to expose the round mouth (53) for the worker to move, after the worker finishes adjustment, the second screw (40) is rotated to rotate the inclined plate (41), and the fourth straight rack (38) can be meshed with the third straight rack (37), -effectively fixing the position of the mobile bar (33);

s4, the push rod (29) can move in the sleeve (30) along with the movement of the support tube (12), after the support tube (12) is adjusted and fixed, a worker pulls the push rod (29) to move in the sleeve (30), so that the U-shaped plate (14) can move stably in the support tube (12) under the action of the positioning rod (15) and the positioning block (18), the second straight rack (13) is meshed with the first straight rack (11), after the meshing is finished, the position of the support rod (9) is fixed, the worker can rotate the positioning bolt (27) to fix the position of the push rod (29) to ensure the meshing stability, after the fixing is finished, the worker takes out the support (21), two hooks (24) on the support (21) are respectively buckled with two corresponding positioning rings (52), after the worker rotates the first positioning nut (22), two first positioning nuts (22) in the same second opening (19) are respectively abutted against the side walls at two ends in the second opening (19) to fix the position of the first screw (23), connection and fixation are completed, and stability between components is guaranteed.