阅读说明：本技术 一种隧洞内施工工作平台 (Construction work platform in tunnel ) 是由 李娜 宋闯 杨林 宋国勇 吴亮亮 郭峰 张喆 褚峰 于 2019-10-17 设计创作，主要内容包括：本发明涉及一种隧洞内施工工作平台,包括架体和设置在架体底部的行走组件,架体的顶部水平设置有固定板,固定板的上方水平设置有工作平台,工作平台与固定板之间设置有升降机构,升降机构用来对工作平台进行升降。本发明具有工作平台可以进行升降从而方便施工人员对隧洞顶部进行施工的效果。(The invention relates to a working platform for construction in a tunnel, which comprises a frame body and a walking assembly arranged at the bottom of the frame body, wherein a fixed plate is horizontally arranged at the top of the frame body, a working platform is horizontally arranged above the fixed plate, and a lifting mechanism is arranged between the working platform and the fixed plate and used for lifting the working platform. The invention has the effect that the working platform can be lifted so as to facilitate constructors to construct the top of the tunnel.)

1. The utility model provides a construction work platform (4) in tunnel, includes support body (1) and walking subassembly (2) of setting in support body (1) bottom, its characterized in that: the top level of support body (1) is provided with fixed plate (3), and the top level of fixed plate (3) is provided with work platform (4), is provided with elevating system (6) between work platform (4) and fixed plate (3), and elevating system (6) are used for going up and down to work platform (4).

2. An in-tunnel construction work platform (4) according to claim 1, characterized in that: elevating system (6) are including drive assembly (62) and two sliding assembly (61), every sliding assembly (61) all include two isometric and intermediate position articulated connecting rod (614) together, the one end of two connecting rods (614) in same sliding assembly (61) articulates respectively in the bottom of work platform (4) and the top of fixed plate (3) and the bottom of other end difference sliding connection at the top of fixed plate (3) and work platform (4), two sliding assembly (61) are all connected on drive assembly (62).

3. An in-tunnel construction work platform (4) according to claim 2, characterized in that: every slip subassembly (61) still includes two limiting plate (612), two limiting plate (612) in same slip subassembly (61) level respectively set up in the below of work platform (4) and the top of fixed plate (3), guide way (6121) have been seted up to the equal level in surface of two limiting plate (612), the slip end in two connecting rods (614) of same slip subassembly (61) rotates dwang (615) that is connected with a level respectively, the outside of every dwang (615) all rotates and is connected with a spacing running roller (616) and every spacing running roller (616) all with the cooperation of corresponding guide way (6121), drive assembly (62) are including connecting axle (621), driving block (622), lead screw (623), driving motor (624) and worm gear reducer (625), two dwang (615) that are close to fixed plate (3) in different slip subassemblies (61) link together and two (615) through connecting axle (621) that the level set up The driving block (622) is fixed on the outer side of the middle position of the connecting shaft (621) and a screw rod (623) penetrates through the driving block (622), the screw rod (623) is in threaded connection with the driving block (622), the screw rod (623) is perpendicular to the axis of the connecting shaft (621), the screw rod (623) is connected with a worm gear reducer (625), and the worm gear reducer (625) is connected with a driving motor (624).

4. An in-tunnel construction work platform (4) according to claim 3, characterized in that: each sliding assembly (61) further comprises two connecting plates (611), the two connecting plates (611) in the same sliding assembly (61) are respectively arranged on the lower surface of the working platform (4) and the upper surface of the fixing plate (3), two limiting plates (612) in the sliding assembly (61) are detachably connected with the corresponding connecting plates (611), and the limiting rollers (616) are I-shaped rollers, and the middle positions of the limiting rollers are arranged in the corresponding guide grooves (6121).

5. An in-tunnel construction work platform (4) according to claim 4, characterized in that: two ends of each connecting plate (611) are respectively provided with a mounting hole (6111), two ends of each limiting plate (612) are respectively provided with a counter bore (6122) at the position corresponding to the mounting hole (6111), and the counter bores (6122) and the inner threads corresponding to the mounting holes (6111) are connected with hexagon socket bolts (613).

6. An in-tunnel construction work platform (4) according to claim 1, characterized in that: the bottom of support body (1) is provided with supporting component (7) and fire extinguishing apparatus (8), and supporting component (7) can play the supporting role to fire extinguishing apparatus (8).

7. An in-tunnel construction work platform (4) according to claim 6, characterized in that: the support assembly (7) comprises a support plate (71), two U-shaped stop rods (72) and two straight stop rods (73), the support plate (71) is horizontally arranged and can be detachably connected to the bottom of the frame body (1), the two U-shaped stop rods (72) are respectively fixed to two ends of the support plate (71) and the two U-shaped stop rods (72) are connected together through the two straight stop rods (73) which are horizontally arranged, the positions of the axes of the two straight stop rods (73) are higher than the upper surface of the support plate (71), and the fire extinguishing equipment (8) is arranged on the upper surface of the support plate (71) and is located between the two U-shaped stop rods (72) and the two straight stop rods (73).

8. An in-tunnel construction work platform (4) according to claim 1, characterized in that: and guardrail structures (5) are arranged on two sides of the working platform (4) perpendicular to the direction of the tunnel (9).

Technical Field

The invention relates to the technical field of tunnel construction, in particular to a working platform for construction in a tunnel.

Background

The tunnel construction has the characteristics of narrow working face, poor working conditions, multiple working procedures, large interference and the like. When the expansion joint to the tunnel carries out slip casting or repairs, because the diameter of tunnel is great, consequently often can be under construction with the help of work platform.

The invention patent with the publication number of CN102704952B discloses a self-propelled tunnel grouting trolley, which comprises a frame body, a working platform and a walking assembly, wherein the working platform is horizontally arranged at the top of the frame body, and the walking assembly is arranged at the bottom of the frame body.

In the above-mentioned scheme, the staff can utilize work platform to be under construction inside the tunnel, but work platform position on the support body is fixed and the tunnel inner wall is the arc, because work platform can not go up and down, when the staff is under construction to the different positions at top in the tunnel, need continuous change posture, long-time work can aggravate tired out the sense, consequently can have inconvenience when constructing the tunnel top.

Disclosure of Invention

The invention aims to provide a working platform for construction in a tunnel, which has the effect that the working platform can be lifted so as to facilitate constructors to construct the top of the tunnel.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a construction work platform in tunnel, includes the support body and sets up the walking subassembly in the support body bottom, and the top level of support body is provided with the fixed plate, and the top level of fixed plate is provided with work platform, is provided with elevating system between work platform and the fixed plate, and elevating system is used for going up and down to work platform.

Through adopting above-mentioned technical scheme, because the inner wall of tunnel is the arc, when the staff is under construction to the different positions at top in the tunnel, can highly in time adjust work platform's position through control elevating system, work platform's position height is in the adjustment process, constructor above work platform can change to more comfortable posture by oneself when the construction, or can remain throughout standing, squat, can reduce the tired sense because of long-time work production when making things convenient for the construction, thereby construction work platform has the effect that work platform can go up and down and make things convenient for the constructor to carry out the construction to the tunnel top in the tunnel.

The invention is further configured to: the lifting mechanism comprises a driving assembly and two sliding assemblies, each sliding assembly comprises two connecting rods which are equal in length and the middle positions of the two connecting rods are hinged together, one ends of the two connecting rods in the same sliding assembly are hinged to the bottom of the working platform and the top of the fixing plate respectively, the other ends of the two connecting rods in the same sliding assembly are connected to the top of the fixing plate and the bottom of the working platform respectively in a sliding mode, and the two sliding assemblies are connected to the driving assembly.

Through adopting above-mentioned technical scheme, two connecting rods among the sliding assembly all are that one end is the hinged end and the other end is the slip end, the slip end of two connecting rods among the sliding assembly is at the slip in-process, contained angle between two connecting rods is also constantly changing, therefore drive assembly drives the opening and shutting angle change of two connecting rods among the sliding assembly when, the interval between fixed plate and the work platform also changes, thereby the staff can in time change the position height that work platform located when being under construction to the different positions at top in the tunnel and make things convenient for constructor to be under construction to the tunnel top.

The invention is further configured to: each sliding assembly also comprises two limiting plates, the two limiting plates in the same sliding assembly are respectively horizontally arranged below the working platform and above the fixed plate, the surfaces of the two limiting plates are respectively and horizontally provided with a guide groove, the sliding ends in the two connecting rods of the same sliding assembly are respectively and rotatably connected with a horizontally arranged rotating rod, the outer side of each rotating rod is respectively and rotatably connected with a limiting roller wheel, each limiting roller wheel is matched with the corresponding guide groove, the driving assembly comprises a connecting shaft, a driving block, a screw rod, a driving motor and a worm and gear reducer, the two rotating rods close to the fixed plate in different sliding assemblies are connected together through the horizontally arranged connecting shaft, the two rotating rods are collinear with the axis of the connecting shaft, the driving block is fixed at the outer side of the middle position of the connecting shaft, the screw rod is arranged in the driving block in a penetrating way, the screw rod is in threaded connection, the screw rod is connected with the worm gear reducer and the worm gear reducer is connected with the driving motor.

By adopting the technical scheme, the driving motor drives the screw rod to rotate through the worm gear reducer, the relative position of the driving block on the screw rod can be changed by the rotation of the screw rod, the change of the position of the driving block can drive the connecting shaft and the positions of the two rotating rods to change together, and the limiting roller wheel is rotatably connected to the outer side of the rotating rod, so that the limiting roller wheel can roll along with the driving block in the guide groove while the rotating rod moves along with the driving block, the rolling friction replaces the sliding friction, the movement of the limiting roller wheel in the guide groove can be more stable while the friction force is reduced, in the process that the driving assembly drives the sliding ends of the two connecting rods in the sliding assembly to move, the opening and closing angle between the two connecting rods in the same sliding assembly can also change along with the change, and the angle between the two connecting rods in the sliding assembly can also change the distance between the, and then when the staff is under construction to the different positions of top in the tunnel, can in time adjust work platform's position height through control driving motor.

The invention is further configured to: every slip subassembly still includes two connecting plates, and two connecting plates in same slip subassembly set up respectively at work platform's lower surface and the upper surface of fixed plate, and two limiting plates in the slip subassembly can be dismantled with the connecting plate that corresponds and be connected, and spacing running roller is the I-shaped wheel and intermediate position sets up in the inside that corresponds the guide way.

Through adopting above-mentioned technical scheme, because two limiting plates in the slip subassembly can dismantle with the connecting plate that corresponds and be connected and the intermediate position setting of spacing running roller is in the inside that corresponds the guide way to make things convenient for the staff to install or take out spacing running roller.

The invention is further configured to: the two ends of each connecting plate are respectively provided with a mounting hole, the two ends of each limiting plate are respectively provided with a countersunk hole at the position corresponding to the mounting hole, and the countersunk holes and the inner threads corresponding to the mounting holes are connected with hexagon socket head bolts.

Through adopting above-mentioned technical scheme, because hexagon socket head cap screw threaded connection is in the inside of counter sink and the mounting hole that corresponds, consequently the connecting plate with correspond limiting plate both be bolted connection, easy to assemble also conveniently changes spacing running roller with dismantling simultaneously, the setting of counter sink can avoid hexagon socket head cap screw and other positions to take place to interfere, hexagon socket head cap screw advantage lies in being convenient for fasten, dismantle and be difficult for the slip angle.

The invention is further configured to: the bottom of support body is provided with supporting component and fire extinguishing apparatus, and supporting component can play the supporting role to fire extinguishing apparatus.

Through adopting above-mentioned technical scheme, the supporting component can play the effect of support to fire extinguishing apparatus, because inside light is relatively poor during the tunnel construction, if constructor improper power consumption or other reasons lead to the job site when the conflagration breaks out, constructor can find the interior construction work platform of the great tunnel of volume rapidly, and then can find fire extinguishing apparatus and control the scene in relevant position.

The invention is further configured to: the supporting component comprises a supporting plate, two U-shaped stop levers and two straight stop levers, the supporting plate is horizontally arranged and can be detachably connected to the bottom of the support body, the two U-shaped stop levers are respectively fixed at the two ends of the supporting plate and are connected together through the straight stop levers arranged horizontally, the positions of the axes of the two straight stop levers are higher than the upper surface of the supporting plate, and the fire extinguishing equipment is arranged on the upper surface of the supporting plate and is located between the two U-shaped stop levers and the two straight stop levers.

Through adopting above-mentioned technical scheme, the backup pad can play the supporting role to the fire-extinguishing apparatus of locating in its top, and two U-shaped pin and two keep off the pole and can play to block, spacing effect to fire-extinguishing apparatus, prevent that constructor from making the interior construction work platform of tunnel in promoting the support body fire-extinguishing apparatus when removing and dropping.

The invention is further configured to: the working platform is provided with guardrail structures on two sides perpendicular to the direction of the tunnel.

Through adopting above-mentioned technical scheme, constructor can hand the guardrail structure when work platform's top construction, makes the work progress safe and reliable more, again because the guardrail structure sets up work platform with the tunnel trend vertically both sides, therefore the guardrail structure can not influence constructor and is under construction to the position outside the top in the tunnel to make the structure of construction work platform more reasonable in the tunnel.

In conclusion, the beneficial technical effects of the invention are as follows:

1. because the inner wall of the tunnel is arc-shaped, when workers construct different positions of the top in the tunnel, the position height of the working platform can be adjusted in time by controlling the lifting mechanism, and in the adjustment process of the position height of the working platform, the constructors above the working platform can change to a comfortable posture during construction, or can always keep standing and squatting, so that the fatigue caused by long-time work can be reduced while construction is facilitated, and the working platform for construction in the tunnel has the effect that the working platform can be lifted, so that the constructors can construct the top of the tunnel conveniently;

2. the driving motor drives the screw rod to rotate through the worm gear reducer, the relative position of the driving block on the screw rod can be changed through the rotation of the screw rod, the change of the position of the driving block can drive the connecting shaft and the positions of the two rotating rods to change together, the limiting roller wheel is rotatably connected to the outer side of the rotating rod, so that the limiting roller wheel can roll along with the driving block in the guide groove while the rotating rod moves along with the driving block, the rolling friction replaces the sliding friction, the movement of the limiting roller wheel in the guide groove is more stable while the friction force is reduced, in the process that the driving assembly drives the sliding ends of the two connecting rods in the sliding assembly to move, the opening and closing angle between the two connecting rods in the same sliding assembly can also change along with the change of the angle between the two connecting rods in the sliding assembly, and the distance between the fixed plate and the, when workers construct different positions of the top in the tunnel, the position height of the working platform can be adjusted in time by controlling the driving motor;

3. the backup pad can play the supporting role to the fire-extinguishing apparatus of locating in its top, and two U-shaped pin and two keep off the pole and can play to block, spacing effect to fire-extinguishing apparatus, prevent that constructor from making the interior construction work platform of tunnel to remove the time fire-extinguishing apparatus drop promoting the support body.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection structure of the fixing plate, the lifting mechanism and the working platform;

FIG. 3 is a schematic structural view of the slide assembly;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;

FIG. 5 is a schematic view of the connection of two connecting rods in the same slider assembly;

fig. 6 is a schematic structural view of the support assembly and fire suppression apparatus.

In the figure, 1, a frame body; 2. a walking assembly; 3. a fixing plate; 4. a working platform; 5. a guardrail structure; 6. a lifting mechanism; 61. a sliding assembly; 611. a connecting plate; 6111. mounting holes; 612. a limiting plate; 6121. a guide groove; 6122. a countersunk hole; 613. a hexagon socket head cap screw; 614. a connecting rod; 615. rotating the rod; 616. a limiting roller; 62. a drive assembly; 621. a connecting shaft; 622. a drive block; 623. a screw rod; 624. a drive motor; 625. a worm gear reducer; 7. a support assembly; 71. a support plate; 72. a U-shaped stop lever; 73. a straight bar; 8. a fire extinguishing apparatus; 9. a tunnel.

Detailed Description

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

Referring to fig. 1, the working platform 4 for construction in a tunnel disclosed by the invention is arranged in a tunnel 9 and comprises a frame body 1, a walking component 2, a fixing plate 3, a working platform 4 and a lifting mechanism 6, wherein the walking component 2 is arranged at the bottom of the frame body 1, the fixing plate 3 is horizontally arranged and fixedly connected to the top of the frame body 1, the working platform 4 is horizontally arranged right above the fixing plate 3, and the lifting mechanism 6 is arranged between the fixing plate 3 and the working platform 4. The two sides of the working platform 4 perpendicular to the direction of the tunnel 9 are provided with guardrail structures 5.

Referring to fig. 2 and 3, the lifting mechanism 6 comprises a driving assembly 62 and two sliding assemblies 61, each sliding assembly 61 comprising two connecting rods 614, two limiting plates 612 and two connecting plates 611 which are equal in length and hinged together at the middle. One end of each of the two connecting rods 614 in the same sliding assembly 61 is hinged to the bottom of the working platform 4 and the top of the fixing plate 3, and the other end is slidably connected to the top of the fixing plate 3 and the bottom of the working platform 4. Two connecting plates 611 in the same sliding assembly 61 are respectively and fixedly connected to the lower surface of the working platform 4 and the upper surface of the fixing plate 3, two limiting plates 612 are respectively arranged on the lower surface of the connecting plate 611 close to the working platform 4 and the upper surface of the connecting plate 611 close to the fixing plate 3, the two connecting plates 611 and the two limiting plates 612 are both horizontally arranged, and guide grooves 6121 are respectively and horizontally arranged on the surfaces of the two limiting plates 612. Referring to fig. 4, two ends of each connecting plate 611 are respectively provided with a mounting hole 6111, two ends of the limiting plate 612 are respectively provided with a countersunk hole 6122 at a position corresponding to the mounting hole 6111, and the countersunk hole 6122 and the inner thread of the corresponding mounting hole 6111 are connected with an hexagon socket head cap screw 613. Referring to fig. 5, the sliding ends of the two connecting rods 614 of the same sliding assembly 61 are respectively and rotatably connected with a rotating rod 615 horizontally disposed, the outer side of each rotating rod 615 is rotatably connected with a limiting roller 616, and the limiting roller 616 is a spool and is engaged with the corresponding guide groove 6121. The driving assembly 62 comprises a connecting shaft 621, a driving block 622, a screw rod 623, a driving motor 624 and a worm gear reducer 625, two rotating rods 615 close to the fixing plate 3 in different sliding assemblies 61 are connected together through the connecting shaft 621 arranged horizontally, the axes of the two rotating rods 615 and the connecting shaft 621 are collinear, the driving block 622 is fixed on the outer side of the middle position of the connecting shaft 621, the screw rod 623 penetrates through the driving block 622, the screw rod 623 is in threaded connection with the driving block 622, the axis of the screw rod 623 is perpendicular to the axis of the connecting shaft 621, the screw rod 623 is connected with the worm gear reducer 625, and the worm gear reducer 625 is connected with the driving motor 624.

The driving motor 624 drives the screw rod 623 to rotate through the worm gear reducer 625, the relative position of the driving block 622 on the screw rod 623 can be changed by the rotation of the screw rod 623, the position of the connecting shaft 621 and the two rotating rods 615 can be driven by the change of the position of the driving block 622 along with the change of the position, because the limiting roller 616 is connected to the outer side of the rotating rod 615 in a rotating manner, the rotating rod 615 moves along with the driving block 622, the limiting roller 616 can roll along with the inside of the guide groove 6121, the sliding friction is replaced by the rolling friction, and the movement of the limiting roller 616 in the guide groove 6121 can be more stable while the friction force is reduced. In the process that the driving assembly 62 drives the sliding ends of the two connecting rods 614 in the sliding assembly 61 to move, the opening and closing angle between the two connecting rods 614 in the same sliding assembly 61 can also change, and the distance between the fixing plate 3 and the working platform 4 can also change while the angle between the two connecting rods 614 in the sliding assembly 61 changes, so that the position height of the working platform 4 can be changed. Because the inner wall of tunnel 9 is the arc, when the staff was under construction to the different positions at top in the tunnel 9, can highly adjust the posture when constructing to more comfortable state by oneself through the position of adjustment work platform 4, or can remain throughout to stand, squat to reduce the sense of tired out because of long-time work production, consequently construction work platform 4 has work platform 4 and can go up and down and then make things convenient for the constructor to carry out the effect of being under construction to tunnel 9 top in the tunnel.

Referring to fig. 1 and 6, a supporting assembly 7 and a fire extinguishing apparatus 8 are arranged at the bottom of a frame body 1, the supporting assembly 7 includes a supporting plate 71, two U-shaped blocking rods 72 and two straight blocking rods 73, the supporting plate 71 is horizontally arranged and detachably connected to the bottom of the frame body 1, the two U-shaped blocking rods 72 are respectively fixed at two ends of the supporting plate 71, the two U-shaped blocking rods 72 are connected together through the two horizontally arranged straight blocking rods 73, and the positions of the axes of the two straight blocking rods 73 are higher than the upper surface of the supporting plate 71. The fire extinguishing apparatus 8 is disposed on the upper surface of the supporting plate 71 between two U-shaped bars 72 and two straight bars 73.

Backup pad 71 can play the supporting role to the fire-extinguishing apparatus 8 of locating above it, and two U-shaped pin 72 and two keep off pole 73 directly can play to block, spacing effect to fire-extinguishing apparatus 8, prevent that constructor from pushing support body 1 and making in the tunnel construction work platform 4 when removing fire-extinguishing apparatus 8 drops.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by the embodiments, therefore: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.