阅读说明：本技术 一种竖井施工用混凝土喷射架 (Concrete spraying frame for shaft construction ) 是由 余家兴 强兵 王青 王伟 杨小敏 杨武 于 2020-12-25 设计创作，主要内容包括：本申请涉及一种竖井施工用混凝土喷射架,涉及混凝土喷涂设备的领域,包括围设在竖井外围的轨道,轨道上设置有带动混凝土喷射机沿轨道做匀速运动的移动机构,移动机构上设置有升降机构,混凝土喷射机的喷嘴安装于升降机构,且混凝土喷射机的喷嘴朝向竖井内壁,升降机构用于带动喷嘴在竖井内升降。本申请具有可以代替人力对混凝土喷射机的喷嘴进行控制的优点。(The utility model relates to a concrete sprayer frame is used in shaft construction relates to concrete spraying equipment's field, including enclosing to establish at the peripheral track of shaft, be provided with on the track and drive the moving mechanism that the uniform motion was done along the track to the concrete sprayer, be provided with elevating system on the moving mechanism, the nozzle of concrete sprayer is installed in elevating system, and the nozzle of concrete sprayer is towards the shaft inner wall, and elevating system is used for driving the nozzle and goes up and down in the shaft. This application has the advantage that can replace the manpower to control the nozzle of concrete sprayer.)

1. The utility model provides a concrete sprays frame for shaft construction which characterized in that: the concrete spraying machine comprises a track (1) arranged on the periphery of a vertical shaft (9) in a surrounding mode, a moving mechanism (2) for driving a concrete spraying machine (4) to do uniform motion along the track (1) is arranged on the track (1), a lifting mechanism (3) is arranged on the moving mechanism (2), a nozzle of the concrete spraying machine (4) is installed on the lifting mechanism (3), the nozzle of the concrete spraying machine (4) faces the inner wall of the vertical shaft (9), and the lifting mechanism (3) is used for driving the nozzle to lift in the vertical shaft (9).

2. The concrete injection frame for shaft construction according to claim 1, wherein: track (1) include rigid coupling at subaerial track body (12) to and tooth ring (13) of track body (12) are located to the cover, be provided with the slide of laying along track (1) length direction on track (1), moving mechanism (2) include case main part (21), breach (211) have been seted up on case main part (21), integrative slider (2111) that is provided with the slide adaptation in breach (211), slider (2111) slide and connect in the slide, it has driving motor to go back the rigid coupling in case main part (21) simultaneously, the rigid coupling has gear (221) with tooth ring (13) meshing on driving motor's the output shaft.

3. The concrete injection frame for shaft construction according to claim 1, wherein: elevating system (3) are including spacing pipe (311), lifter (32) and lifting member, and vertical the installing in moving mechanism (2) of spacing pipe (311), and lifter (32) slides and connects in spacing pipe (311), and lifting member installs in elevating system (3), and lifting member is used for driving lifter (32) and goes up and down in spacing pipe (311) simultaneously, and the shower nozzle of concrete sprayer (4) is installed in the bottom of lifter (32).

4. The concrete injection frame for shaft construction according to claim 3, wherein: the lifting piece is set as a winch (34), and a pull rope (341) of the winch (34) is connected with the top end of the lifting rod (32).

5. The concrete injection frame for shaft construction according to claim 4, wherein: the fixed connection has couple (3411) on stay cord (341) of hoist engine (34), the top rigid coupling has link (321) on lifter (32) that corresponds, circular annular recess (322) have been seted up to the periphery of lifter (32) top link (321), holding tank (323 with link (321) adaptation is seted up to the bottom of lifter (32), the bottom rigid coupling of lifter (32) has connecting pipe (324) that use with recess (322) cooperation simultaneously, connect together in recess (322) through connecting pipe (324) threaded connection between two adjacent lifters (32).

6. The concrete injection frame for shaft construction according to claim 5, wherein: a temporary fixing structure for temporarily fixing the limiting pipe (311) is arranged between the limiting pipe (311) and a lifting rod (32) penetrating through the limiting pipe (311).

7. The concrete injection frame for shaft construction according to claim 3, wherein: the cross sections of the lifting rod (32) and the limiting pipe (311) are both set to be circular, and meanwhile, the limiting pipe (311) is provided with a limiting part (6) used for limiting the lifting rod (32).

8. The concrete injection frame for shaft construction according to claim 3, wherein: the bottom of lifter (32) is provided with the material of kick-backing that is used for collecting shaft (9) inner wall material of kick-backing and collects mechanism (7), and the material of kick-backing is collected mechanism (7) and is including collecting frame (71) and collecting cloth (72), collects frame (71) and connects in lifter (32), collects cloth (72) demountable installation and collects frame (71), and the opening of collecting cloth (72) simultaneously is seted up through-hole (721) that have with the shower nozzle to pass on collecting cloth (72).

9. The concrete injection frame for shaft construction according to claim 1, wherein: still include dust collection mechanism (8), dust collection mechanism (8) are including taking out dirt shell (81), dust fall case (82) and air exhauster (83), take out dirt shell (81) and lie in shaft (9), take out simultaneously and communicate through taking out dirt pipe (84) between dirt shell (81) and the dust fall case (82), air exhauster (83) and dust fall case (82) intercommunication.

10. The concrete injection frame for shaft construction according to claim 9, wherein: dust falling box (82) include main tank body (821) and auxiliary tank body (822), and auxiliary tank body (822) slide and connect in main tank body (821), are provided with filter screen (8221) in auxiliary tank body (822), and dust extraction pipe (84) pass main tank body (821) and auxiliary tank body (822) intercommunication simultaneously, and air exhauster (83) pass main tank body (821) and auxiliary tank body (822) intercommunication, and dust extraction pipe (84) and air exhauster (83) are located the both sides of filter screen (8221) respectively.

Technical Field

The application relates to the field of concrete spraying equipment, in particular to a concrete spraying frame for shaft construction.

Background

In the in-process of tunnel construction underground, for the convenience of the material transport between underground tunnel and the ground, often can equally separate the offering shaft on underground tunnel along the way subaerial, the shaft is after the every downward excavation one end distance of in-process of offering, in order to guarantee the stability of shaft, the hole has been seted up on the shaft inner wall, pour into the anchor rod into rapidly to inserting in the hole behind the concrete in the hole, then lay the steel reinforcement cage on the inner wall of shaft, the steel reinforcement cage is fixed with the anchor rod, later the staff can spray the concrete on to the inner wall of shaft with the concrete jet machine.

In the related art, a worker needs to manually guide the injection pipe in the process of injecting concrete onto the inner wall of the shaft by using the concrete injection machine, so that the workload of the worker is large.

Disclosure of Invention

The application provides a concrete spraying frame for shaft construction in order to improve the great problem of staff's work load when utilizing the concrete sprayer to spray concrete on the shaft inner wall.

The application provides a concrete sprays frame for shaft construction adopts following technical scheme:

the utility model provides a concrete sprayer frame for shaft construction, is provided with the moving mechanism that drives the concrete sprayer and do uniform motion along the track including enclosing at the peripheral track of shaft on the track, the last elevating system that is provided with of moving mechanism, the nozzle of concrete sprayer is installed in elevating system, and the nozzle of concrete sprayer is towards the shaft inner wall, and elevating system is used for driving the nozzle and goes up and down in the shaft.

By adopting the technical scheme, in the process of spraying concrete to the inner wall of the vertical shaft, a worker sets the concrete sprayer on the moving mechanism, and fixes the nozzle on the concrete sprayer on the lifting mechanism, then the moving mechanism drives the concrete sprayer and the nozzle to move at a constant speed along the rail, the nozzle sprays concrete uniformly towards the inner wall of the vertical shaft, after the moving mechanism moves for a circle along the rail, the lifting mechanism drives the nozzle to ascend in the process of moving along the rail, so that the nozzle gradually sprays the whole inner wall of the vertical shaft to finish the concrete, the nozzle is not required to be regulated and controlled by manpower, and more labor is saved.

Optionally, the track includes the track body to and the ring gear of track body is located to the cover, and the track is located to the ring gear cover, is provided with the slide of laying along track length direction on the track, and moving mechanism includes the case main part, offers jaggedly in the case main part, an organic whole be provided with the slider of slide adaptation in the breach, the slider slides and connects in the slide, it has driving motor to go back the rigid coupling in the case main part simultaneously, the rigid coupling has the gear with ring gear meshing on driving motor's the output shaft.

Through adopting above-mentioned technical scheme, the staff can drive the case main part and move on the track through starting driving motor.

Optionally, the lifting mechanism comprises a limiting pipe, a lifting rod and a lifting piece, the limiting pipe is vertically installed on the moving mechanism, the lifting rod is connected in the limiting pipe in a sliding mode, the lifting assembly is installed on the lifting mechanism, the lifting assembly is used for driving the lifting rod to lift in the limiting pipe, and the sprayer of the concrete sprayer is installed at the bottom end of the lifting rod.

Through adopting above-mentioned technical scheme, the lifting member can drive the lifter and slide in spacing intraductal, and the lifter drives the nozzle and carries out the up-and-down motion.

Optionally, the lifting member is a winch, and a pull rope of the winch is connected with the top end of the lifting rod.

Through adopting above-mentioned technical scheme, the hoist engine can drive the lifter through the stay cord and slide in spacing intraductal.

Optionally, the fixed connection has the couple on the stay cord of hoist engine, and the lifter top rigid coupling that corresponds has the link, and circular annular recess has been seted up to the periphery of lifter top link, the holding tank with the link adaptation is seted up to the bottom of lifter, and the bottom rigid coupling of lifter has the connecting pipe that uses with the recess cooperation simultaneously, connects together in the recess through connecting pipe threaded connection between two adjacent lifters.

Through adopting above-mentioned technical scheme, the staff changes the quantity of lifter according to the degree of depth of shaft, and then makes the jet plane can adapt to the shaft of the different degree of depth.

Optionally, a temporary fixing structure for temporarily fixing the limiting pipe is arranged between the limiting pipe and the lifting rod penetrating through the limiting pipe.

Through adopting above-mentioned technical scheme, the staff is at the in-process of concatenation lifter, and interim fixed knot constructs can carry out interim fixed to the lifter in spacing intraductal.

Optionally, the cross sections of the lifting rod and the limiting pipe are both set to be circular, and meanwhile, a limiting part used for limiting the lifting rod is arranged on the limiting pipe.

Through adopting above-mentioned technical scheme, can make two adjacent lifter like this after the installation finishes, the outer wall of two adjacent lifter is in the state of parallel and level all the time, and the locating part can avoid the lifter to produce the rotation in spacing intraductal as far as simultaneously.

Optionally, the bottom of lifter is provided with the material that kick-backs that is used for collecting the shaft inner wall material of kick-backing and collects the mechanism, and the material that kick-backs is collected the mechanism and is collected the frame and collect the cloth including collecting the frame, collects frame attach in the lifter, collects cloth demountable installation and collects the frame, and the opening of collecting the cloth simultaneously is towards the shaft inner wall, collects and sets up the through-hole that has the shower nozzle to pass on the cloth.

Through adopting above-mentioned technical scheme, collect cloth and can collect the resilience material that produces when the nozzle of concrete sprayer sprays the concrete towards the shaft wall of a well, the resilience material staff who collects can carry out cyclic utilization, the energy saving.

Optionally, be provided with the dust on the injection frame and collect the mechanism, the dust is collected the mechanism and is included taking out the dirt shell, falling dirt case and air exhauster, takes out the dirt shell and is located the shaft, takes out simultaneously through taking out dirt pipe intercommunication between dirt shell and the dust fall case, air exhauster and dust fall case intercommunication.

Through adopting above-mentioned technical scheme, the dust in the shaft can be reduced to the dust collection mechanism for the environment of staff in the work progress is better.

Optionally, the dust fall case includes main tank body and auxiliary box, and the auxiliary box slides and connects in the main tank body, is provided with the filter screen in the auxiliary box, takes out the dirt pipe simultaneously and passes main tank body and auxiliary box intercommunication, and the air exhauster passes main tank body and auxiliary box intercommunication, takes out the dirt pipe and is located the both sides of filter screen respectively with the air exhauster.

Through adopting above-mentioned technical scheme, when dust in the dust fall incasement collected certain quantity, the staff can change vice box, makes more convenience when the staff collects the dust of dust fall incasement like this.

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

1. by arranging the concrete spraying frame which comprises the track moving mechanism and the lifting mechanism, the spraying frame can drive the concrete sprayer to uniformly spray concrete to the inner wall of the vertical shaft without depending on manpower;

2. by arranging the lifting rods into a detachable structure, workers can change the number of the lifting rods according to the depth of the vertical shaft, so that the spraying frame can adapt to working conditions as many as possible;

3. through set up the material that kick-backs on spraying the frame and collect mechanism and dust and collect the mechanism, the material that the mechanism can be kick-backed to the wall of a well is collected to the material that kick-backs to make the material that kick-backs can be by cyclic utilization, thereby reach the purpose of solving the energy, the dust is collected the mechanism and can be collected the dust in the shaft simultaneously, reduces the dust content in the air in the shaft.

Drawings

Fig. 1 is a schematic structural diagram of a spray rack in an operating state in the embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a rail in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of the outer shape of the track in the embodiment of the present application.

Fig. 4 is a schematic structural outline view of the box main body in the embodiment of the present application.

FIG. 5 is a schematic view showing a connection structure between the retainer ring and the retainer ring according to an embodiment of the present invention.

FIG. 6 is a schematic view showing the connection structure between the lifting rod and the limiting tube in the embodiment of the present application.

FIG. 7 is a schematic view highlighting the mounting location of the suction fan on the support plate in an embodiment of the present application.

Fig. 8 is a partially enlarged schematic view of a portion a in fig. 3.

Fig. 9 is a schematic structural outline of the rebounding material collecting mechanism in the embodiment of the present application.

Figure 10 is a side section view of a dust box in an embodiment of the present application.

Description of reference numerals: 1. a track; 11. a base plate; 12. a track body; 121. a vertical portion; 122. a horizontal portion; 1221. a chute; 13. a toothed ring; 2. a moving mechanism; 21. a box main body; 211. a notch; 2111. a slider; 212. a universal wheel; 22. a drive member; 221. a gear; 23. a support plate; 3. a lifting mechanism; 31. a limiting component; 311. a limiting pipe; 3111. connecting ropes; 3112. a connecting hook; 3113. a sliding groove; 312. mounting a rod; 32. a lifting rod; 321. hanging a ring; 322. a groove; 323. accommodating grooves; 324. a connecting pipe; 325. mounting grooves; 3251. a hanging rod; 326. connecting grooves; 33. a support assembly; 331. a support frame; 3311. a cross bar; 3312. a vertical rod; 3313. a roller; 34. a winch; 341. pulling a rope; 3411. hooking; 4. a concrete sprayer; 5. a fixing member; 51. a first hoop; 52. a second hoop; 53. a third hoop; 54. a connecting rod; 6. a limiting member; 61. a connecting ring; 611. a limiting rod; 62. a sliding block; 63. tightly pushing the nut; 7. a resilient material collecting mechanism; 71. a collection frame; 72. collecting cloth; 721. a through hole; 73. a mounting frame; 731. a fourth hoop; 732. an additional rod; 8. a dust collection mechanism; 81. a dust extraction shell; 82. a dust falling box; 821. a main box body; 822. an auxiliary box body; 8221. filtering with a screen; 8222. a placement port; 8223. a cover plate; 83. an exhaust fan; 84. a dust extraction pipe; 9. and (4) a shaft.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses concrete injection frame for shaft construction. Referring to fig. 1, the spray booth includes a rail 1, a moving mechanism 2, and a lifting mechanism 3. The track 1 is arranged in a circular ring shape surrounding the periphery of the vertical shaft 9, and the track 1 is fixedly connected to the ground at the periphery of the vertical shaft 9; the moving mechanism 2 is arranged on the track 1, the concrete sprayer 4 is arranged on the moving mechanism 2, and the moving mechanism 2 aims to drive the concrete sprayer 4 to move at a constant speed along the track 1; the lifting mechanism 3 is arranged on the moving mechanism 2, the injection pipe of the concrete sprayer 4 is arranged on the lifting mechanism 3, and the lifting mechanism 3 is arranged to drive the injection pipe of the concrete sprayer 4 to lift in the vertical shaft 9.

Referring to fig. 2, the track 1 includes a circular annular bottom plate 11 and a circular annular track body 12, the bottom plate 11 is horizontally erected on the ground at the periphery of the shaft 9, and the bottom plate 11 and the ground are fixed by penetrating a plurality of bolts;

the rail body 12 includes a vertical portion 121 and a horizontal portion 122 integrally disposed, the horizontal portion 122 is disposed on the top of the vertical portion 121, the bottom of the vertical portion 121 is fixedly connected to the bottom plate 11, and the horizontal portion 122 and the vertical portion 121 together form the rail body 12 having an "L" shaped cross section.

Referring to fig. 3 and 4, the moving mechanism 2 includes a box main body 21, a driving member 22, and a support plate 23. The box main body 21 is located outside the rail main body 12, and the box main body 21 is provided with a notch 211 adapted to the horizontal portion 122 of the rail main body 12.

Referring to fig. 2 and 4, circular annular sliding grooves 1221 are respectively formed in the upper surface and the lower surface of the horizontal portion 122 of the rail body 12, two arc-shaped sliding blocks 2111 adapted to the sliding grooves 1221 are fixedly connected to the notches 211 of the corresponding box main body 21, and the two sliding blocks 2111 are respectively connected to the two sliding grooves 1221 of the horizontal portion 122 in a sliding manner.

The outer side surface of the horizontal portion 122 on the rail body 12 is sleeved with an annular gear ring 13, the gear ring 13 is fixedly connected with the rail body 12, the driving member 22 is arranged in the box main body 21, the driving member 22 can be a driving motor, and a gear 221 meshed with the gear ring 13 is fixedly connected to an output shaft of the driving member 22. The driving motor can drive the box main body 21 to rotate along the rail body 12 by driving the gear 221 to rotate.

Four universal wheels 212 for supporting the box main body 21 are fixed to the lower surface of the box main body 21 to increase the stability of the box main body 21.

Referring to fig. 3, the support plate 23 is horizontally fixed to the upper surface of the box main body 21, and the concrete sprayer 4 is fixed to the upper surface of the support plate 23.

Referring to fig. 3 and 5, the lifting mechanism 3 includes a stopper assembly 31, a lifting rod 32, a support assembly 33, and a hoist 34. Spacing subassembly 31 sets up on the outer peripheral face of backup pad 23, and spacing subassembly 31 includes spacing pipe 311 and two installation poles 312, and the vertical setting of spacing pipe 311, and spacing pipe 311 and lifter 32 adaptation, two installation poles 312 rigid coupling are in the both sides position department of spacing pipe 311 respectively, and two equal rigid couplings of installation pole 312 are on backup pad 23.

Referring to fig. 6, the lifting rod 32 coaxially penetrates through the limiting tube 311, and the lifting rod 32 and the limiting tube 311 are connected in a sliding manner;

referring to fig. 7, the winch 34 is fixedly connected to the upper surface of the support plate 23, a hook 3411 is fixedly connected to a pull rope 341 of the winch 34, a hanging ring 321 is fixedly connected to the top end of the corresponding lifting rod 32, and the hook 3411 is hooked on the hanging ring 321; the support member 33 is disposed on the support plate 23, and the support member 33 is intended to increase the height of the rope 341 so that the hoist 34 can pull the lifting rod 32 to be lifted.

The support component 33 includes two parallel arrangement's support frame 331, and the support frame 331 includes integrative horizontal pole 3311 and the montant 3312 of two vertical settings that set up, and the both ends of horizontal pole 3311 respectively with two montants 3312 rigid couplings, horizontal pole 3311 and two montants 3312 constitute "U" shape's support frame 331 jointly, the bottom of two montants 3312 all with the upper surface rigid coupling of backup pad 23. The rope 341 of the winch 34 is connected to the lift bar 32 after passing around the cross bar 3311 at the top of the two support frames 331.

The upper surfaces of the two support frames 331 are rotatably connected with rollers 3313, the rope 341 of the hoist 34 is mounted on the two rollers 3313, and the rollers 3313 are provided to reduce the friction between the rope 341 of the hoist 34 and the support frames 331.

Referring to fig. 8, a fixing member 5 for fixing a nozzle of the concrete sprayer 4 is disposed at the bottom end of the lifting rod 32, specifically, the fixing member 5 includes a first hoop 51 disposed horizontally and a second hoop 52 disposed vertically, and the fixing member 5 further includes a third hoop 53 sleeved at the bottom end of the lifting rod 32; connecting rods 54 are fixedly connected between the first hoop 51 and the third hoop 53, and between the second hoop 52 and the third hoop 53. The first anchor ear 51 is located above the second anchor ear 52, and the spray head of the concrete sprayer 4 sequentially passes through the first anchor ear 51 and the second anchor ear 52 from top to bottom. Under the guiding action of the first anchor ear 51 and the second anchor ear 52, the spray head of the concrete sprayer 4 faces obliquely downward to the inner wall of the shaft 9.

Before the worker uses the concrete sprayer 4 to spray concrete on the inner wall of the shaft 9, the worker firstly penetrates the lifting rod 32 into the limiting pipe 311, then the pull rope 341 of the winch 34 bypasses the two rollers 3313 and then the hook 3411 on the pull rope 341 is connected with the hanging ring 321 at the top end of the lifting rod 32, and then the worker fixes the third hoop 53 of the fixing piece 5 at the bottom end of the lifting rod 32 and fixes the spray head of the concrete sprayer 4 on the first hoop 51 and the second hoop 52.

Then, the moving mechanism 2 is started, the moving mechanism 2 drives the concrete sprayer 4 and the lifting rod 32 to move along the rail body 12 at a constant speed, in the process, the nozzle on the concrete sprayer 4 sprays concrete towards the inner wall of the vertical shaft 9, after the support plate 23 and the concrete sprayer 4 move along the rail body 12 for a circle, the winch 34 drives the nozzle to move upwards through the pull rope 341 and the lifting rod 32, the moving mechanism 2 continues to drive the concrete sprayer 4 to move along the rail 1 at a constant speed, meanwhile, the concrete sprayer 4 continues to spray concrete, and the like, so that the concrete spraying inside the vertical shaft 9 can be gradually finished.

Because the shaft 9 is generally constructed in a sectional manner in the construction process, that is, after the shaft 9 is dug to a certain depth, concrete needs to be sprayed on the inner wall of the dug shaft 9 in order to ensure the stability of the shaft 9, so that the length of the lifting rod 32 cannot meet the working requirement along with the depth deepening of the shaft 9.

Referring to fig. 6, for this purpose, an annular groove 322 is formed in the end surface of the top end of the lifting rod 32, an accommodating groove 323 adapted to the hanging ring 321 is formed in the end surface of the bottom end of the lifting rod 32, a connecting pipe 324 adapted to the groove 322 is further fixedly connected to the end surface of the bottom end of the lifting rod 32, an internal thread is formed in the inner wall of the groove 322, and an external thread is formed in the outer wall of the connecting pipe 324.

Along with the increase of the depth of the shaft 9, the staff can adapt by increasing the number of the lifting rods 32, in the process of splicing two lifting rods 32, firstly the hook 3411 on the pulling rope 341 is separated from the hanging ring 321 on the lifting rod 32 in the limiting pipe 311, then the lifting rod 32 in the limiting pipe 311 is temporarily fixed, here, in order to facilitate the staff to temporarily fix the lifting rod 32, the peripheral surface of the limiting pipe 311 is fixedly connected with the connecting rope 3111, the end of the connecting rope 3111 far away from the limiting pipe 311 is fixedly connected with the connecting hook 3112, the peripheral surface of the corresponding lifting rod 32 is provided with the mounting groove 325, and the two side walls in the opposite positions in the groove 322 are fixedly connected with the horizontally arranged hanging rods 3251.

When the worker separates the hanging ring 321 on the pulling rope 341 from the hanging hook 3411 on the lifting rod 32, the worker first hooks the connecting hook 3112 on the hanging rod 3251 in the lifting rod 32, then separates the hanging hook 3411 from the hanging ring 321, coaxially arranges the new lifting rod 32 and the lifting rod 32 in the limiting tube 311, then threadedly connects the connecting rod 54 at the bottom end of the new lifting rod 32 to the groove 322 at the top end of the lifting rod 32 in the limiting tube 311, and in the process, the hanging ring 321 at the top end of the lifting rod 32 in the limiting tube 311 gradually enters the accommodating groove 323 at the bottom end of the new lifting rod 32. Finally, the worker hooks the hook 3411 of the pulling rope 341 with the hanging ring 321 at the top end of the newly installed lifting rod 32, and then separates the connection of the connection rope 3111 from the hanging rod 3251.

Referring to fig. 5 and 6, in order to prevent the rotation of the lifting rod 32 during the lifting in the limiting tube 311 as much as possible, the limiting member 6 is disposed on the limiting tube 311. The upper surface of the limiting tube 311 is provided with a circular annular sliding groove 3113, and the cross section of the sliding groove 3113 is T-shaped; the limiting component 631 comprises a connecting ring 61 arranged on the upper surface of the limiting pipe 311, the connecting ring 61 is sleeved on the periphery of the lifting rod 32, a circular annular sliding block 62 matched with the sliding groove 3113 is fixedly connected to the lower surface of the connecting ring 61, and the sliding block 62 is connected in the sliding groove 3113 in a sliding manner.

The peripheral face of lifter 32 is seted up on the periphery and is seted up the spread connecting groove 326 along lifter 32 axis direction, and the upper surface of go-between 61 hinge have gag lever post 611, and spacing pipe 311 stretches into the spacing inslot, and the upper surface of go-between 61 is worn to be equipped with and is pushed up nut 63, pushes up nut 63 and pushes up the upper surface of go-between 61.

When the number of the lifting rods 32 is increased by the worker, after the worker installs a new lifting rod 32 and the lifting rod 32 in the limiting pipe 311, the worker rotates the limiting rod 611 to separate the limiting rod 611 from the connecting groove 326 on the lifting rod 32, then the lifting rod 32 descends, after the new lifting rod 32 enters the limiting pipe 311, the worker rotates the connecting ring 61, after the position of the limiting rod 611 can adapt to the position of the connecting groove 326 on the new lifting rod 32, the upper surface of the limiting pipe 311 is pressed by the top nut, and meanwhile, the limiting rod 611 is rotated into the connecting groove 326 on the new lifting rod 32.

Referring to fig. 3, the bottom end of the lifting rod 32 is also provided with a springback material collecting mechanism 7, and the springback material collecting mechanism 7 is used for collecting the materials rebounded outwards from the well wall in the process of spraying concrete to the inner wall of the vertical shaft 9 by the concrete sprayer 4.

Referring to fig. 9, the rebounding material collecting mechanism 7 includes a collecting frame 71, a collecting cloth 72, and a mounting frame 73. The opening of the collecting frame 71 faces the inner wall of the shaft 9, and one side of the collecting frame 71 facing the inner wall of the shaft 9 is provided with an arc-shaped surface. Collect cloth 72 and set up in collecting frame 71, collect and offer on the cloth 72 and supply the through-hole 721 that the nozzle passed on the concrete sprayer 4, it has a plurality of installation hooks to collect still the rigid coupling on the cloth 72 simultaneously, the rigid coupling has a plurality of shackles on the collection frame 71 that corresponds, collects cloth 72 and can dismantle through the cooperation of a plurality of installation hooks and installation hook and be fixed in collection frame 71.

The mounting frame 73 includes a fourth hoop 731 covering the bottom end of the lifting rod 32, and a plurality of additional rods 732 are fixed between the fourth hoop 731 and the mounting frame. The mounting bracket 73 is provided for the purpose of achieving a detachable connection between the collecting frame 71 and the lifting rod 32.

Collect cloth 72 and can collect the resilience material that produces when the nozzle of concrete sprayer 4 is towards the wall of a well of shaft 9 shotcrete, the resilience material staff who collects can carry out cyclic utilization, energy saving. Meanwhile, as the collecting cloth 72 and the collecting frame 71 are detachably fixed, after more rebound materials are collected in the collecting cloth 72, the collecting cloth 72 can be replaced by a worker, so that the worker can collect the rebound materials more conveniently.

Referring to fig. 3 and 7, in the process of constructing the shaft 9, a worker may have more dust in the shaft 9, and in order to reduce the influence of the dust in the shaft 9 on the body of the worker, the spraying frame is further provided with a dust collecting mechanism 8, and specifically, the dust collecting mechanism 8 includes a dust extracting shell 81, a dust settling box 82 and an exhaust fan 83. The dust-collecting shell 81 is fixedly connected with a connecting frame, the connecting frame comprises a fifth hoop sleeved at the bottom end of the lifting rod 32, a plurality of additional rods are fixedly connected between the fifth hoop and the dust-collecting shell 81, and a dust-collecting pipe 84 is fixedly connected between the dust-collecting shell 81 and the dust-settling box 82. The dust falling box 82 is communicated with the dust extraction shell 81 through a dust extraction pipe 84, and the exhaust fan 83 is communicated with the dust falling box 82.

Referring to fig. 10, the dust settling box 82 includes a main box 821 and an auxiliary box 822, the auxiliary box 822 is disposed in the main box 821, a first inlet is formed on an outer sidewall of the main box 821, a second inlet communicated with the first inlet is formed on an outer sidewall of the auxiliary box 822, and the dust exhaust pipe 84 is communicated with the first inlet; the outer side wall of the main box 821 is further provided with a first outlet, the outer side wall of the corresponding auxiliary box 822 is provided with a second outlet communicated with the first outlet, and the exhaust fan 83 is communicated with the first outlet.

A placing opening 8222 is formed in the upper surface of the auxiliary box body 822, a cover plate 8223 is hinged to the auxiliary box body 822 at the edge of the placing opening 8222, and a filter screen 8221 is further arranged in the auxiliary box body 822. The second inlet and the second outlet are respectively located at both sides of the screen 8221.

The staff can open air exhauster 83 at the in-process of construction in shaft 9, and air exhauster 83 can extract the dust in shaft 9 to auxiliary box 822 in through collecting the shell, and the staff directly changes auxiliary box 822 after the dust in auxiliary box 822 is collected to full can.

The implementation principle of the concrete injection frame for shaft construction in the embodiment of the application is as follows: after the shaft 9 is excavated to a certain depth, a worker firstly arranges an anchor rod and a reinforcement cage on an excavated shaft wall, then installs the lifting rod 32 in the limiting pipe 311, and connects the pulling rope 341 with the lifting rod 32, then fixes the nozzle of the concrete sprayer 4, the rebound material collecting mechanism 7 and the dust-removing shell 81 at the bottom end of the lifting rod 32, then starts the driving motor, the moving mechanism 2 drives the concrete sprayer 4 and the lifting rod 32 to move at a constant speed along the rail body 12, in the process, the nozzle on the concrete sprayer 4 sprays concrete towards the inner wall of the shaft 9, after the supporting plate 23 and the concrete sprayer 4 move a circle along the rail body 12, the winch 34 drives the nozzle to move upwards through the pulling rope 341 and the lifting rod 32, the moving mechanism 2 continues to drive the nozzle to move at a constant speed along the rail 1, and simultaneously the nozzle continues to spray concrete, by analogy, the concrete injection inside the shaft 9 can be gradually completed. The worker then continues to dig the shaft 9 down and continues the concrete injection step by increasing the number of lifting rods 32.

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.