CN112943304A

CN112943304A - Concrete lining trolley with telescopic supporting table

Info

Publication number: CN112943304A
Application number: CN202110214705.3A
Authority: CN
Inventors: 李果生; 杨进华; 马冰; 李建桥; 高进; 杨兴; 刘畅雷
Original assignee: Chengdu Construction Engineering Road And Bridge Construction Co ltd
Current assignee: Chengdu Construction Engineering Road And Bridge Construction Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-06-11

Abstract

The invention belongs to the technical field of concrete lining trolleys, and particularly relates to a concrete lining trolley with a telescopic supporting table. The technical scheme is as follows: the utility model provides a brace table telescopic concrete lining platform truck, includes the platform truck main part, installs a plurality of platforms in the platform truck main part, and the overlap joint has a brace table on the platform, installs sideslip actuating mechanism on the platform, and sideslip actuating mechanism's output is connected with the sideslip lead screw, and the other end of sideslip lead screw is connected with the sideslip support through the bearing, and the sideslip support is fixed in on the platform, and sideslip lead screw threaded connection has the sideslip nut, and the sideslip nut is fixed with a. The invention provides a concrete lining trolley which can adjust the extending length of a supporting platform according to requirements.

Description

Concrete lining trolley with telescopic supporting table

Technical Field

The invention belongs to the technical field of concrete lining trolleys, and particularly relates to a concrete lining trolley with a telescopic supporting table.

Background

The construction of the highway tunnel follows the principle of the new Austrian method, and the construction is carried out according to the sequence of blasting excavation, primary support and secondary lining to form a main structure of the tunnel.

Under general conditions, the length of a road tunnel reaches more than 1km, the secondary lining concrete work load is large, the construction period is long, if the secondary lining concrete is poured by adopting a traditional method of erecting a support mounting template, a support can occupy a construction channel in the tunnel, the excavation of a front face and the construction of an inverted arch are influenced, all processes cannot be synchronously constructed, the construction efficiency is greatly reduced, and therefore the secondary lining of the tunnel is usually constructed by adopting a self-propelled template trolley.

At present, domestic super-large section tunnels are usually single-hole four-lane tunnels, the area of an excavated section reaches more than 230 square meters, the span exceeds 20m, each section (the length is usually 12m) of secondary lining concrete needs to be continuously poured for more than 13 hours, trolley local deformation, concrete vibration compaction and the like are easily caused in the pouring process, the quality is difficult to control, the construction difficulty is large, the safety risk is high, the construction and development of domestic super-large section tunnels are slow, and the number of the super-large section tunnels which run by traffic is small.

Therefore, the secondary lining formwork trolley applied to the tunnel with the extra-large section is different from the common tunnel, special design needs to be carried out according to the section form, the stress characteristics and the like of the tunnel, and meanwhile, the concrete vibrating system is adjusted and optimized by considering the large concrete pouring amount and long time of a single time.

The method is characterized in that the special design is carried out on the shape and the contour of the secondary lining template trolley by comprehensively considering the construction transportation space requirement in the tunnel according to the section form and the stress characteristic of the extra-large section tunnel, and the concrete vibrating system is optimized according to the concrete pouring position.

A platform for workers to stand needs to be arranged on the secondary lining formwork trolley, and formwork supporting, vibrating and other work are convenient to carry out. But the distance between the platform and the inner wall of the tunnel cannot be controlled, so that the condition that the operation of workers is inconvenient is caused.

Disclosure of Invention

In order to solve the above problems in the prior art, the present invention aims to provide a concrete lining trolley, which can adjust the extension length of a support platform according to the requirement.

The technical scheme adopted by the invention is as follows:

the utility model provides a brace table telescopic concrete lining platform truck, includes the platform truck main part, installs a plurality of platforms in the platform truck main part, and the overlap joint has a brace table on the platform, installs sideslip actuating mechanism on the platform, and sideslip actuating mechanism's output is connected with the sideslip lead screw, and the other end of sideslip lead screw is connected with the sideslip support through the bearing, and the sideslip support is fixed in on the platform, and sideslip lead screw threaded connection has the sideslip nut, and the sideslip nut is fixed with a.

After the trolley main body is installed, the distance between the edge of the trolley main body and the inner wall of the tunnel is fixed. In order to facilitate the construction of workers, the position of the support platform on the platform needs to be adjusted. And starting the transverse moving driving mechanism, and driving the transverse moving lead screw to rotate by the transverse moving driving mechanism. Because the traversing nut is fixed with the support table, the support table can limit the traversing nut to rotate. The support table can move linearly under the driving of the transverse lead screw. The action time of the transverse moving driving mechanism is controlled, the extending distance of the supporting platform on the platform can be accurately controlled, and workers can conveniently approach the inner wall of the tunnel and conduct construction operation.

As a preferable scheme of the invention, the transverse moving driving mechanism comprises a transverse moving bidirectional motor, the output end of the transverse moving bidirectional motor is connected with a transverse moving speed reducer, the transverse moving bidirectional motor and the transverse moving speed reducer are both arranged on the platform, and one end of a transverse moving lead screw is fixed with the output end of the transverse moving speed reducer. After the transverse movement bidirectional motor is started, the transverse movement bidirectional motor drives the transverse movement speed reducer to act, and the transverse movement speed reducer drives the transverse movement lead screw to rotate. The traversing lead screw and the traversing nut have a definite transmission ratio, so that the position of the traversing nut can be accurately adjusted, and correspondingly, the position of the supporting table can also be accurately adjusted.

As the preferable scheme of the invention, both ends of the traversing lead screw are fixed with traversing limiting rings for limiting the traversing nut. The sideslip spacing ring can carry out spacingly to the sideslip nut, avoids the sideslip nut to touch sideslip support or sideslip reduction gear. Simultaneously, the moving range of sideslip nut is by the restriction back, and the moving range of brace table is also restricted, avoids brace table displacement when too big, and the platform is difficult to carry out the condition of stable support to the support pallet.

As a preferable scheme of the invention, the platform is provided with a transverse moving guide groove, a transverse moving guide block is fixed on the transverse moving nut, and the transverse moving guide block is sleeved in the transverse moving guide groove. In the process that the transverse moving screw drives the transverse moving nut to move, the transverse moving guide block on the transverse moving nut slides in the transverse moving guide groove all the time, so that the transverse moving nut moves more stably, and the motion interference is avoided.

In a preferred embodiment of the present invention, an end limiting baffle for limiting the supporting table is fixed to one end of the platform away from the trolley main body, and a rubber pad is disposed at one end of the end limiting baffle facing the supporting table. The end limiting baffle can limit the end of the supporting table, so that the condition that the supporting table is too large in extension distance and easily slips from the platform is avoided, and the safety of workers is guaranteed.

As a preferable aspect of the present invention, a diagonal brace is fixed between the bottom of the platform and the carriage main body. The bracing supports the platform, further improves the stability of platform, and the back is removed on the platform to the brace table, and the platform still can reliably support the brace table.

As a preferable scheme of the invention, a fence and a stop pillar are fixed on both sides of the support platform. The rail can play the guard action, guarantees staff's safety. The bumping post can block the rail, avoids the rail to turn on one's side.

As a preferable scheme of the invention, the trolley main body is also connected with a plurality of inserted link mechanisms for reserving the caverns. When the tunnel is poured for the second time, the inserting rod mechanism is inserted into the determined position, a cavern can be reserved at the position, and necessary devices can be conveniently installed in the cavern.

As a preferable aspect of the present invention, the trolley main body is connected to a plurality of ventilation ducts. The ventilation pipe can play the effect of ventilation, and the platform truck main part carries out the stable support to the ventilation pipe, guarantees the stability of ventilation pipe position.

As a preferable scheme of the invention, a ladder stand is hinged below the upper layer platform, the lower end of the ladder stand is in threaded connection with a locking screw, a fixed frame is fixed on the lower layer supporting platform, a vertical groove is formed in the fixed frame, and the locking screw penetrates through the vertical groove. The sideslip actuating mechanism can drive the supporting bench to move on the platform, and then can move the supporting bench to the definite position as required, makes things convenient for the staff to be under construction. When the supporting table moves, the locking screw on the crawling ladder slides in the vertical groove, so that the crawling ladder is prevented from interfering with the vertical groove. After the supporting table is moved in place, the locking screw is screwed on the fixing frame, and then the ladder stand is fixed relative to the supporting table. After the crawling ladder is fixed, the stability of the crawling ladder is improved, and the situation that a worker slides down from the crawling ladder is avoided.

As a preferable scheme of the invention, one side of the ladder stand is hinged with a plurality of pedals, a support rod is hinged between every two adjacent pedals, and one side of each two adjacent pedals, the support rod and the ladder stand which are connected with the pedals form a parallelogram. According to the parallelogram principle, a plurality of footboards remain parallel all the time to, can upwards climb with angle always when the staff uses, the corresponding security that improves the cat ladder.

As a preferable scheme of the invention, a transverse sliding chute is arranged on the supporting platform, a transverse sliding block is sleeved in the transverse sliding chute, two transverse connecting rods are hinged on the transverse sliding block, the other end of each transverse connecting rod is hinged with the lowest pedal on the crawling ladder, and the pedals, the two transverse connecting rods and the transverse sliding block form a parallelogram. After the supporting table moves, the fixing frame on the supporting table drives the locking screw to move, and the inclination angle of the ladder stand changes. The position of the transverse sliding block in the transverse sliding chute is changed, and the pedal at the lowest end can be always kept horizontal as the pedal, the two transverse connecting rods and the transverse sliding block form a parallelogram. And one side of the adjacent two pedals, the supporting rod and the ladder stand which are connected with the pedals form a parallelogram, so that all the pedals are always kept horizontal, and the safety of workers when using the ladder stand is improved.

In a preferred embodiment of the present invention, the ladder stand is provided with a handrail. The handrail can play the guard action to the staff.

The invention has the beneficial effects that:

1. after the trolley main body is installed, the distance between the edge of the trolley main body and the inner wall of the tunnel is fixed. In order to facilitate the construction of workers, the position of the support platform on the platform needs to be adjusted. And starting the transverse moving driving mechanism, and driving the transverse moving lead screw to rotate by the transverse moving driving mechanism. Because the traversing nut is fixed with the support table, the support table can limit the traversing nut to rotate. The support table can move linearly under the driving of the transverse lead screw. The action time of the transverse moving driving mechanism is controlled, the extending distance of the supporting platform on the platform can be accurately controlled, and workers can conveniently approach the inner wall of the tunnel and conduct construction operation.

2. The sideslip actuating mechanism can drive the supporting bench to move on the platform, and then can move the supporting bench to the definite position as required, makes things convenient for the staff to be under construction. When the supporting table moves, the locking screw on the crawling ladder slides in the vertical groove, so that the crawling ladder is prevented from interfering with the vertical groove. After the supporting table is moved in place, the locking screw is screwed on the fixing frame, and then the ladder stand is fixed relative to the supporting table. After the crawling ladder is fixed, the stability of the crawling ladder is improved, and the situation that a worker slides down from the crawling ladder is avoided.

Drawings

FIG. 1 is a schematic view of the structure of the trolley;

FIG. 2 is a schematic structural view of the plunger mechanism;

FIG. 3 is a schematic structural view of the tightening mechanism;

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

FIG. 5 is a schematic view of the structure of the platform, support platform and ladder;

FIG. 6 is a partial enlarged view at B in FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 5 at C;

FIG. 8 is a schematic view of the structure at the ventilation duct of the trolley;

FIG. 9 is a partial block diagram of FIG. 8;

FIG. 10 is a schematic view of the construction of the walking system;

FIG. 11 is a left side view of a partial structure of the walking system;

FIG. 12 is a plan view of a partial structure of the walking system.

In the drawings, 1-the trolley body; 2-a platform; 3, supporting the table; 4-climbing a ladder; 5-a ventilation pipe; a 2-rotating rods; a 3-cannula; a 4-telescopic struts; a 5-bayonet; a 6-locking sleeve; a 7-leakproof rubber seal ring; a 8-tightening mechanism; a 51-abutting the guide groove; a 71-pressing guide block; a 81-tightening the polygonal tube; a 82-tightening nut; a 83-tightening the screw rod; a 84-tightening the hand wheel; a 85-tightening rod; a 86-tightly pressing the limit ring; b 4-traverse driving mechanism; b 5-traversing lead screw; b 6-traversing support; b 7-traverse nut; b 8-diagonal brace; b 21-sideslip guide groove; b 22-end limit stops; b 23-rubber pad; b 35-fence; b 36-stop post; b 41-bidirectional traversing motor; b 42-sideslip decelerator; b 51-transverse moving limit ring; b 71-traverse guide block; b 31-fixed mount; b 32-sideslip chute; b 33-sideslip slider; b 34-transverse moving connecting rod; b 35-locking screw; b 52-pedal; b 53-support bar; b 54-armrest; c 3-clamping polygonal tubes; c 4-clamping screw nut mechanism; c 5-handwheel drive; c 6-compact; c 11-bottom chute; c 31-bottom slider; c 41-clamping screw; c 42-clamping nut; c 43-travel bar; c 51-clamping hand wheel; c 52-shaft; c 53-drive bevel gear; c 54-driven bevel gear; c 44-clamping the stop collar; c 61-rubber block; d 1-wheel carriage; d 2-travel drive mechanism; d 3-guide; d 4-pushing mechanism; d 11-guide groove; d 21-walking motor; d 22-walking reducer; d 23-drive sprocket; d 24-driven sprocket; d 25-secondary driven sprocket; d 31-base; d 32-damping mechanism; d 33-guide plate; d 34-touch switch; d 41-cylinder; d 42-push rod; d 43-push link; d 311-limit chute; d 321-sleeve; d 322-telescoping rod; d 323-spring; d 331-a transverse plate; d 332-stop lever; d 333-limiting block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The trolley of the embodiment comprises a trolley body 1, wherein a plurality of rotating rods a2 are hinged to the trolley body 1, the other end of each rotating rod a2 is in threaded connection with a sleeve a3, the other end of each sleeve a3 is in threaded connection with a telescopic support rod a4, and the rotating directions of the threads of the rotating rod a2 and the telescopic support rod a4 are opposite; the other end of the telescopic strut a4 is hinged with an inserted bar a5 for reserving a cavity.

The rotating lever a2 is hinged to the carriage body 1, and the rotating lever a2 can rotate relative to the carriage body 1. Before the tunnel is poured for the second time, the rotating rod a2 is rotated to a certain angle, so that the inserting rod a5 can be aligned to the position where the cavity needs to be reserved. By screwing sleeve a3, rotating rod a2 and telescoping strut a4 both move helically relative to sleeve a3, the overall length of the invention can be adjusted. After the length is adjusted, the inserted rod a5 is just inserted into the position where the chamber is needed to be reserved. When pouring, a cavity is reserved at the position of the inserted rod a5, and necessary devices are convenient to install.

In order to enable the rotating rod a2 and the telescopic strut a4 to be locked relative to the sleeve a3, a locking sleeve a6 is connected to each of the rotating rod a2 and the telescopic strut a4 in a threaded mode, external threads are arranged at two ends of the sleeve a3, and the other end of the locking sleeve a6 is connected with the external threads of the sleeve a3 in a threaded mode. When the locking sleeve a6 is screwed, the locking sleeve a6 moves spirally on the rotating rod a2 or the telescopic strut a 4. When the locking sleeve a6 contacts the sleeve a3, one end of the locking sleeve a6 screws into the threads of the sleeve a 3. Thus, locking sleeve a6 can connect rotating rod a2 or telescopic strut a4 with sleeve a3, preventing relative rotation of sleeve a3, rotating rod a2 and telescopic strut a 4. After the sleeve a3, the rotating rod a2 and the telescopic supporting rod a4 are locked, the inserted rod a5 can be stably inserted into the inner wall of the tunnel, and the inserted rod a5 is prevented from falling off.

In order to avoid concrete leakage, a leakproof rubber sealing ring a7 for sealing the gap between the insert rod a5 and the edge of the chamber is connected to the insert rod a 5. The leak-proof rubber seal ring a7 can seal the gap between the inserted bar a5 and the edge of the cavern, so that the leakage of concrete from the gap during pouring is avoided, and the shape certainty of the cavern is ensured.

Furthermore, a plurality of pressing guide blocks 71 are arranged on the leakage-proof rubber seal ring a7, a plurality of jacking guide grooves a51 are arranged on the inserted link a5, the pressing guide blocks 71 are sleeved in the jacking guide grooves a51, a plurality of jacking mechanisms a8 used for jacking the leakage-proof rubber seal ring a7 on the inner wall of the tunnel are arranged on the inserted link a5, and the output end of the jacking mechanism a8 is connected with the leakage-proof rubber seal ring a 7. After the inserted bar a5 is installed in place, the jacking mechanism a8 presses each section of the leakage-proof rubber seal ring a7 on the inner wall of the tunnel, so that each section of the leakage-proof rubber seal ring a7 can be reliably sealed, and concrete leakage is avoided. The guide block moves in the abutting guide groove a51, so that the position of the leakage-proof rubber seal ring a7 is stable, and the situation that the leakage-proof rubber seal ring a7 cannot be reliably sealed due to deformation is avoided.

The number of the jacking guide grooves a51 and the jacking mechanisms a8 is four, the four jacking guide grooves a51 and the four jacking mechanisms a8 are uniformly distributed on the circumference of the inserted rod a5, and the four jacking guide grooves a51 and the four jacking mechanisms a8 are arranged at intervals. Four jacking mechanisms a8 are uniformly distributed on the inserted rod a5, so that each section of the leakage-proof rubber seal ring a7 can be reliably jacked tightly, and the poured concrete is prevented from being extruded out of the leakage-proof rubber seal ring a 7. The four guide blocks are uniformly distributed on the leakage-proof rubber seal ring a7, so that the movement process of the leakage-proof rubber seal ring a7 is more stable.

The jacking mechanism a8 comprises a jacking polygonal tube a81, the jacking polygonal tube a81 is fixed on an inserted bar a5, a jacking nut a82 is sleeved in the jacking polygonal tube a81, a jacking lead screw a83 is in threaded connection with the jacking nut a82, the jacking lead screw a83 and the jacking polygonal tube a81 are connected with each other through a bearing, one end of the jacking lead screw a83 is connected with a jacking hand wheel a84, a jacking bar a85 is fixed on the jacking nut a82, and the other end of the jacking bar a85 is connected with a leakproof rubber seal ring a 7.

When the tightening handwheel a84 is rotated, the tightening handwheel a84 drives the tightening screw rod a83 to rotate. Since the tightening nut a82 is restricted from rotating by the tightening polygon tube a81, the tightening nut a82 can move linearly by the driving of the tightening screw a 83. During the movement of the jacking nut a82, the jacking rod a85 moves along with the jacking nut a82, and the jacking rod a85 can drive the section of the leakage-proof rubber seal ring a7 to move. When the sections of the leakage-proof rubber seal ring a7 are tightly pressed on the inner wall of the tunnel by the pressing rod a85, the leakage-proof rubber seal ring a7 can play a reliable sealing role.

Furthermore, one end of the jacking lead screw a83, which is far away from the jacking hand wheel a84, is fixed with a jacking limiting ring a86 for limiting the jacking nut a 82. The jacking limiting ring a86 can limit the jacking nut a82, and the situation that the jacking nut a82 is separated from the jacking lead screw a83 is avoided.

When the inserted rod a5 needs to be installed, the sleeve a3 is screwed, the rotating rod a2 and the telescopic strut a4 are both spirally moved relative to the sleeve a3, and the total length of the inserted rod mechanism is adjusted. When the inserted rod a5 is inserted into the reserved position, the locking sleeve a6 is screwed, and the locking sleeve a6 locks the rotating rod a2 with the sleeve a3 and locks the telescopic strut a4 with the sleeve a 3. And (3) rotating the tightening handwheel a84, and driving the tightening screw rod a83 to rotate by the tightening handwheel a 84. Since the jacking nut a82 is restricted from rotating by the jacking polygonal tube a81, the jacking nut a82 can drive the locking rod to move linearly. The four locking rods tightly push the leakage-proof rubber seal ring a7 on the inner wall of the tunnel, so that the leakage-proof rubber seal ring a7 can play a reliable sealing role, and concrete is prevented from leaking from a gap between the inserted rod a5 and the cavern.

Still install a plurality of platforms 2 on the platform truck main part 1, the overlap joint has a supporting bench 3 on platform 2, install sideslip actuating mechanism b4 on the platform 2, sideslip actuating mechanism b 4's output is connected with sideslip lead screw b5, sideslip lead screw b 5's the other end is connected with sideslip support b6 through the bearing, sideslip support b6 is fixed in on the platform 2, sideslip lead screw b5 threaded connection has sideslip nut b7, sideslip nut b7 is fixed with supporting bench 3.

Install the track in the tunnel, the gyro wheel is installed to the bottom of platform truck main part 1, and the gyro wheel sets up on the track. When the driving device drives the roller to move, the roller rolls on the track, and the trolley main body 1 can be moved in place. The trolley main body 1 is connected with a plurality of inserted bar a5 mechanisms for reserving holes. When the tunnel is poured for the second time, the inserting rod a5 mechanism is inserted to a determined position, so that a chamber can be reserved at the position, and necessary devices can be conveniently installed in the chamber. The trolley main body 1 is connected with a plurality of ventilation pipes 5. The ventilation pipe 5 can play the effect of ventilating, and the platform truck main part 1 carries out the stable support to ventilation pipe 5, guarantees the stability in ventilation pipe 5 position.

After the trolley main body 1 is installed, the distance between the edge of the trolley main body 1 and the inner wall of the tunnel is fixed. In order to facilitate the construction of the worker, the position of the support table 3 on the platform 2 needs to be adjusted. The traversing driving mechanism b4 is started, and the traversing driving mechanism b4 drives the traversing lead screw b5 to rotate. Since the traverse nut b7 is fixed to the support base 3, the support base 3 can restrict the rotation of the traverse nut b 7. The support table 3 is linearly movable by driving the traverse screw b 5. The extending distance of the supporting platform 3 on the platform 2 can be accurately controlled by controlling the action time of the transverse moving driving mechanism b4, and the convenience is brought to workers to get close to the inner wall of the tunnel and carry out construction operation.

Specifically, the traverse driving mechanism b4 comprises a traverse bidirectional motor b41, the output end of the traverse bidirectional motor b41 is connected with a traverse speed reducer b42, the traverse bidirectional motor b41 and the traverse speed reducer b42 are both mounted on the platform 2, and one end of a traverse lead screw b5 is fixed with the output end of the traverse speed reducer b 42. After the traversing bidirectional motor b41 is started, the traversing bidirectional motor b41 drives the traversing speed reducer b42 to act, and the traversing speed reducer b42 drives the traversing lead screw b5 to rotate. With a certain transmission ratio between the traverse screw b5 and the traverse nut b7, the position of the traverse nut b7 and, accordingly, the position of the support table 3 can be accurately adjusted.

In order to limit the traversing nut b7, a traversing limit ring b51 for limiting the traversing nut b7 is fixed at each end of the traversing lead screw b 5. The transverse moving limiting ring b51 can limit the transverse moving nut b7 and prevent the transverse moving nut b7 from touching the transverse moving support b6 or the transverse moving speed reducer b 42. Meanwhile, after the moving range of the traverse nut b7 is limited, the moving range of the support table 3 is also limited, and the situation that the platform 2 is difficult to stably support the support stand when the moving distance of the support table 3 is too large is avoided.

In order to make the traversing nut b7 move more smoothly, the platform 2 is provided with a traversing guide groove b21, a traversing guide block 71 is fixed on the traversing nut b7, and the traversing guide block 71 is sleeved in the traversing guide groove b 21. In the process that the traversing lead screw b5 drives the traversing nut b7 to move, the guide block on the traversing nut b7 slides in the traversing guide groove b21 all the time, so that the traversing nut b7 moves more stably, and the motion interference is avoided.

In order to limit the support table 3, an end limit baffle b22 for limiting the support table 3 is fixed to one end of the platform 2 away from the trolley body 1, and a rubber pad b23 is provided at one end of the end limit baffle b22 facing the support table 3. The end limiting baffle b22 can limit the end of the supporting platform 3, so that the supporting platform 3 is prevented from extending too far and slipping from the platform 2 easily, and the safety of workers is guaranteed.

In order to improve the stability of the platform 2, a brace b8 is fixed between the bottom of the platform 2 and the trolley body 1. Bracing b8 supports platform 2, further improves platform 2's stability, and back on platform 2 was moved to the brace table 3, platform 2 still can reliably support brace table 3.

Further, a fence b35 and a pillar b36 are fixed to both sides of the support base 3. The fence b35 can play a protection role, and the safety of workers is guaranteed. The fence b35 can be blocked by the retaining pillar b36, so that the fence b35 is prevented from turning on the side.

The lower part of the upper-layer platform 2 is hinged with a ladder stand 4, the lower end of the ladder stand 4 is in threaded connection with a locking screw b35, a fixing frame b31 is fixed on the lower-layer supporting platform 3, a vertical groove is formed in the fixing frame b31, and the locking screw b35 penetrates through the vertical groove. The trolley main body 1 is connected with a plurality of ventilation pipes 5. The ventilation pipe 5 can play the effect of ventilating, and the platform truck main part 1 carries out the stable support to ventilation pipe 5, guarantees the stability in ventilation pipe 5 position.

The transverse driving mechanism b4 can drive the supporting platform 3 to move on the platform 2, and the supporting platform 3 can be moved to a determined position as required, so that the construction of workers is facilitated. When the support table 3 moves, the locking screw b35 on the ladder 4 slides in the vertical groove, so that the ladder 4 is prevented from interfering with the vertical groove. After the support base 3 is moved to the proper position, the ladder 4 is fixed to the support base 3 by screwing the locking screw b35 to the fixing bracket b 31. After the crawling ladder 4 is fixed, the stability of the crawling ladder is improved, and the situation that a worker slides down from the crawling ladder 4 is avoided.

In order to keep the pedal b52 horizontal all the time, the invention is improved as follows:

one side of the ladder stand 4 is hinged with a plurality of pedals b52, a support bar b53 is hinged between adjacent pedals b52, and the side of the adjacent two pedals b52, the support bar b53 and the ladder stand 4, which is connected with the pedal b52, forms a parallelogram. According to the parallelogram principle, a plurality of pedals b52 remain parallel all the time to, the staff can climb up at a constant angle when using, correspondingly improves the security of cat ladder 4.

The support table 3 is provided with a transverse sliding chute b32, a transverse sliding block b33 is sleeved in the transverse sliding chute b32, two transverse connecting rods b34 are hinged to the transverse sliding block b33, the other end of each transverse connecting rod b34 is hinged to a pedal b52 at the lowest layer of the ladder stand 4, and the pedal b52, the two transverse connecting rods b34 and the transverse sliding block b33 form a parallelogram. When the support 3 moves, the fixing frame b31 on the support 3 drives the locking screw b35 to move, and the inclination angle of the ladder 4 changes. The position of the traverse slide b33 in the traverse slide b32 is changed, and the pedal b52, the two traverse links b34 and the traverse slide b33 form a parallelogram, so that the pedal b52 at the lowest end can be kept horizontal all the time. And one side of the two adjacent pedals b52, the supporting rod b53 and the ladder stand 4 connected with the pedal b52 forms a parallelogram, so that all the pedals b52 are always kept horizontal, and the safety of workers using the ladder stand 4 is improved.

Further, an armrest b54 is mounted on the ladder 4. The handrail b54 can protect workers.

Further, a fence b35 and a stop pillar b36 are mounted on the support base 3, respectively. The fence b35 can surround the support base 3, thereby protecting the worker on the support base 3 and preventing the worker from falling off the support base 3. The fence b35 can be blocked by the retaining pillar b36, so that the fence b35 is prevented from turning on the side.

Further, a diagonal brace b8 is connected between the bottom of the platform 2 and the trolley body 1. After the position of the supporting platform 3 on the platform 2 is adjusted, the stress condition of the platform 2 is changed, the platform 2 is supported by the inclined strut b8, and the stability of the platform 2 can be improved.

The trolley main body 1 is provided with a plurality of ventilation pipes 5, the trolley main body 1 is connected with a plurality of clamping polygonal tubes c3, a clamping screw nut mechanism c4 is sleeved in the clamping polygonal tube c3, the input end of the clamping screw nut mechanism c4 is connected with a hand wheel transmission mechanism c5, the output end of the clamping screw nut mechanism c4 is connected with a pressing block c6, and the pressing block c6 is pressed on the ventilation pipes 5.

When the hand wheel transmission mechanism c5 is operated, the hand wheel transmission mechanism c5 drives the clamping screw-nut mechanism c4 to act. Since the clamping polygonal tube c3 can limit the rotation of the clamping nut c42 of the clamping screw-nut mechanism c4, the output end of the clamping screw-nut mechanism c4 can drive the clamping block c6 to move linearly. The pressing block c6 can be pressed on the ventilation pipe 5 after moving, so that the ventilation pipe 5 is reliably fixed, and the condition that the ventilation pipe 5 vibrates greatly when the air volume in the ventilation pipe 5 is too large is avoided.

Still further, the shape of the pressing piece c6 is an arc. The shape of compact heap c6 is the arc to compact heap c6 can better with the laminating of ventilation pipe 5, improves the area of contact with ventilation pipe 5, thereby ventilation pipe 5 can be clamped tightly more steadily.

The side of the pressing block c6 facing the ventilation pipe 5 is connected with a rubber block c 61. The rubber block c61 can buffer the ventilation pipe 5, and the pressing block c6 is prevented from crushing the surface of the ventilation pipe 5.

Furthermore, a bottom slider c31 is fixed on the clamping polygonal tube c3 on one side of the ventilation tube 5, a bottom sliding chute c11 is arranged on the trolley body 1, the bottom slider c31 is sleeved in the bottom sliding chute c11, and the clamping polygonal tube c3 on the other side of the ventilation tube 5 is fixed with the trolley body 1. The clamping polygonal tube c3 on one side is fixed with the bottom sliding block c31, so that the bottom sliding block c31 can slide in the bottom sliding groove c11 when large vibration occurs, and the clamping polygonal tube c3 is prevented from being damaged due to overlarge stress between the clamping polygonal tube c3 and the rack body.

Specifically, the clamping screw nut mechanism c4 includes a clamping screw c41, the clamping screw c41 is sleeved in the clamping polygonal tube c3, one end of the clamping screw c41 is connected with the clamping polygonal tube c3 through a bearing, a clamping nut c42 is connected to the clamping screw c41 through a screw thread, a moving rod c43 is fixed to the clamping nut c42, the other end of the moving rod c43 is fixed to the pressing block c6, and the hand wheel transmission mechanism c5 is connected with the clamping screw c 41. Since the clamping polygonal tube c3 can limit the rotation of the clamping nut c42, when the hand wheel transmission mechanism c5 drives the clamping screw rod c41 to rotate, the clamping screw rod c41 drives the clamping nut c42 to move linearly. The clamping nut c42 drives the moving rod c43 to move, the moving rod c43 drives the pressing block c6 to move, and therefore the pressing block c6 can reliably press the ventilating pipe 5.

Specifically, the hand wheel transmission mechanism c5 comprises a clamping hand wheel c51, a rotating shaft c52 is connected to the clamping hand wheel c51, the rotating shaft c52 is connected to the side wall of a clamping polygonal tube c3 through a bearing, the other end of the rotating shaft c52 extends into the clamping polygonal tube c3, one end of the rotating shaft c52 extending into a clamping polygonal tube c3 is connected with a driving bevel gear c53, the driving bevel gear c53 is meshed with a driven bevel gear c54, and the driven bevel gear c54 is connected to the input end of a clamping lead screw nut mechanism c 4. When the ventilating pipe 5 is connected, the clamping hand wheel c51 is rotated, the clamping hand wheel c51 drives the rotating shaft c52 to rotate, and the rotating shaft c52 drives the driving bevel gear c53 to rotate. The driving bevel gear c53 drives the driven bevel gear c54 to rotate, so that the clamping screw-nut mechanism c4 acts correspondingly.

Furthermore, a clamping limiting ring c44 for limiting the clamping nut c42 is fixed at one end of the clamping screw rod c41 close to the pressing block c 6. The clamping limiting ring c44 can limit the clamping nut c42, and the situation that the clamping nut c42 is separated from the clamping screw rod c41 is avoided.

The bottom of the trolley body 1 is provided with a traveling system, the traveling system comprises a wheel carrier d1 used for being connected with the waterproof trolley, a traveling driving mechanism d2 is arranged on the wheel carrier d1, the output end of the traveling driving mechanism d2 is in transmission connection with a driving wheel used for rolling on a guide rail, and the driving wheel is rotationally connected to the wheel carrier d 1; the two sides of the wheel carrier d1 are connected with a guiding device d3 for discharging obstacles, the section of the guiding device d3 far away from the wheel carrier d1 is concave, and the section of the guiding device d3 near the wheel carrier d1 is convex.

The walking driving mechanism d2 comprises a walking motor d21, an output shaft of the walking motor d21 is connected with a walking reducer d22, the walking motor d21 and the walking reducer d22 are both mounted on a wheel carrier d1, an output shaft of the walking reducer d22 is connected with a driving sprocket d23, a driven sprocket d24 is fixed on a driving wheel, and the driving sprocket d23 and the driven sprocket d24 are in chain transmission connection. The wheel frame d1 is also rotatably connected with an auxiliary driving wheel, an auxiliary driven chain wheel d25 is fixed on the auxiliary driving wheel, and the driven chain wheel d24 is in transmission connection with the auxiliary driven chain wheel d25 through a chain. The driven chain wheel d24 drives the auxiliary driven chain wheel d25 to rotate through a chain, so that the auxiliary driving wheel correspondingly rotates. The driving wheel and the auxiliary driving wheel roll on the guide rail simultaneously, and the stability of the trolley during moving is improved.

When the traveling driving mechanism d2 drives the driving wheels to rotate, the driving wheels roll on the guide rails, thereby driving the trolley to move integrally. When encountering an obstacle, the concave section of the guide d3 guides the obstacle to move the obstacle away from the track. The outer side of the front section of the guide device d3 is concave, and the barrier can move along the outer wall of the guide device d3, so that the situation that the barrier is pushed forwards by the guide device d3 can be avoided. The outward protrusion of the guide d3 can push the barrier away, so that the barrier can be completely separated from the guide d3, and the situation that the rear section of the guide d3 pushes the barrier forward is avoided. After the barrier is guided away by the guide device d3, the trolley can accurately advance, and the trolley is prevented from colliding with the barrier.

Specifically, the guide device d3 includes a base d31, the base d31 is connected with the wheel carrier d1, the base d31 is connected with a damping mechanism d32, the other end of the damping mechanism d32 is connected with a guide plate d33, a section of the guide plate d33 away from the wheel carrier d1 is concave, and a section of the guide plate d33 close to the wheel carrier d1 is convex. When the guide plate d33 contacts with an obstacle, the damping mechanism d32 can play a role in damping vibration, and impact of the obstacle on the guide plate d33 is reduced.

The damping mechanism d32 includes a sleeve d321, one end of the sleeve d321 is fixed to the base d31, an expansion rod d322 is sleeved in the sleeve d321, a transverse plate d331 is fixed to the guide plate d33, the other end of the expansion rod d322 is fixed to the transverse plate d331, a spring d323 is connected between the transverse plate d331 and the sleeve d321, and the expansion rod d322 is sleeved with the spring d 323. When the obstacle contacts the guide plate d33, the spring d323 is compressed, and the front end of the telescopic rod d322 extends into the sleeve d 321. The spring d323 can buffer the transverse plate d331, and avoid the situation that an obstacle causes excessive impact on the guide plate d 33. The telescopic rod d322 can guide the spring d323, and the deviation of the guide plate d33 is avoided.

Furthermore, a limiting rod d332 is fixed on the guide plate d33, a limiting block d333 is fixed on the limiting rod d332, a limiting sliding groove d311 is arranged on the base d31, and the limiting block d333 is sleeved in the limiting sliding groove d 311. When the guide plate d33 moves by contacting with an obstacle, the limiting block d333 on the limiting rod d332 slides in the limiting sliding groove d311, so that the guide plate d33 is further guided, and the stability of the guide plate d33 is improved.

In order to accurately discharge the bulky or heavy obstacles, the guide device d3 is rotatably connected with the wheel carrier d1, and a pushing mechanism d4 for driving the guide device d3 to tilt is mounted on the wheel carrier d 1; and a touch switch d34 is arranged on an outer convex section of the guide device d3, and a touch switch d34 is electrically connected with the pushing mechanism d 4. If the obstacle is large in size or heavy in weight, the obstacle cannot be sprung open in time after contacting the concave section of the guide d3, but slides to the convex section of the guide d 33. At this time, the obstacle triggers the touch switch d34, the pushing mechanism d4 is turned on, and the pushing mechanism d4 can drive the guiding device d3 to rotate for a certain angle, so that the obstacle is accurately discharged, and the impact force of the obstacle on the trolley is further reduced. Wherein the touch switch d34 is arranged obliquely towards the wheel carrier d 1. The touch switch d34 is obliquely arranged, so that the touch switch d34 does not block the obstacle, and the obstacle can accurately trigger the touch switch d 34.

Specifically, the pushing mechanism d4 includes an air cylinder d41, an air cylinder d41 is mounted on the wheel carrier d1, an electromagnetic valve is mounted on the air cylinder d41, the electromagnetic valve is electrically connected with a touch switch d34, a push rod d42 is connected to a piston rod of the air cylinder d41, a push connecting rod d43 is hinged to the guiding device d3, and the other end of the push connecting rod d43 is hinged to the push rod d 42. When the touch switch d34 is triggered, the solenoid valve on the cylinder d41 is turned on, and the piston rod of the cylinder pushes the push rod d42 out. Under the action of the pushing rod d42, the pushing link d43 correspondingly moves, and the pushing link d43 can push the guide device d3 to tilt outwards. During the process that the guide device d3 tilts outwards, the obstacles are pushed away completely, and the situation that the guide device d3 is blocked by the obstacles with large volume or heavy weight is avoided.

Furthermore, the wheel frame d1 is provided with a guide groove d11, and the push rod d42 is sleeved in the guide groove d 11. The pushing rod d42 always moves in the guide groove d11 during the moving process, so that the pushing rod d42 moves more stably, and the pushing connecting rod d43 can rotate accurately. By controlling the extension length of the piston rod of the cylinder d41, the rotation angle of the guiding device d3 can be accurately controlled.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims

1. The utility model provides a brace table telescopic concrete lining platform truck, a serial communication port, including platform truck main part (1), install a plurality of platforms (2) on platform truck main part (1), the overlap joint has brace table (3) on platform (2), install sideslip actuating mechanism (b4) on platform (2), the output of sideslip actuating mechanism (b4) is connected with sideslip lead screw (b5), the other end of sideslip lead screw (b5) is connected with sideslip support (b6) through the bearing, sideslip support (b6) are fixed in on platform (2), sideslip lead screw (b5) threaded connection has sideslip nut (b7), sideslip nut (b7) are fixed with brace table (3).

2. A concrete lining trolley with a retractable support table, as claimed in claim 1, wherein said traverse driving mechanism (b4) comprises a traverse bi-directional motor (b41), the output end of traverse bi-directional motor (b41) is connected with a traverse reducer (b42), traverse bi-directional motor (b41) and traverse reducer (b42) are both installed on the platform (2), and one end of traverse screw (b5) is fixed with the output end of traverse reducer (b 42).

3. A concrete lining trolley with a retractable support table as claimed in claim 1, characterized in that the traverse screw (b5) has its two ends fixed with traverse limiting rings (b51) for limiting the traverse nut (b 7).

4. A concrete lining trolley with a retractable support platform as claimed in claim 1, characterized in that said platform (2) is provided with a traverse guide groove (b21), a traverse nut (b7) is fixed with a traverse guide block (b71), and the traverse guide block (b71) is sleeved in the traverse guide groove (b 21).

5. A concrete lining trolley with a telescopic support platform according to claim 1, characterized in that an end limiting baffle (b22) for limiting the support platform (3) is fixed at the end of the platform (2) far away from the trolley body (1), and a rubber pad (b23) is arranged at the end of the end limiting baffle (b22) facing the support platform (3).

6. A concrete lining trolley with a telescopic support platform as claimed in claim 1, characterized in that a ladder (4) is hinged below the upper platform (2), a locking screw (b35) is connected to the lower end of the ladder (4) through a thread, a fixing frame (b31) is fixed on the lower support platform (3), a vertical slot is arranged on the fixing frame (b31), and a locking screw (b35) passes through the vertical slot.

7. A concrete lining trolley with a telescopic support table as claimed in claim 6, characterized in that a plurality of pedals (b52) are hinged on one side of the ladder (4), a support rod (b53) is hinged between adjacent pedals (b52), and the side of the adjacent two pedals (b52), the support rod (b53) and the ladder (4) connected with the pedals (b52) forms a parallelogram.

8. A concrete lining trolley with a telescopic supporting platform as claimed in claim 7, characterized in that a traverse sliding groove (b32) is arranged on the supporting platform (3), a traverse sliding block (b33) is sleeved in the traverse sliding groove (b32), two traverse connecting rods (b34) are hinged on the traverse sliding block (b33), the other end of the traverse connecting rod (b34) is hinged with a pedal (b52) at the lowest layer of the ladder (4), and the pedal (b52), the two traverse connecting rods (b34) and the traverse sliding block (b33) form a parallelogram.

9. A concrete lining trolley with telescopic support tables according to claim 1, characterized in that a diagonal brace (b8) is fixed between the bottom of the platform (2) and the trolley body (1).

10. A concrete lining trolley with a telescopic supporting platform according to any one of claims 1 to 9, characterized in that a fence (b35) and a stop pillar (b36) are fixed on both sides of the supporting platform (3).