CN215860196U - Side wall construction platform suitable for tunnel invert construction - Google Patents
Side wall construction platform suitable for tunnel invert construction Download PDFInfo
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- CN215860196U CN215860196U CN202121994085.1U CN202121994085U CN215860196U CN 215860196 U CN215860196 U CN 215860196U CN 202121994085 U CN202121994085 U CN 202121994085U CN 215860196 U CN215860196 U CN 215860196U
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- side wall
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Abstract
The utility model provides a side wall construction platform suitable for tunnel inverted arch construction. The side wall construction platform suitable for tunnel inverted arch construction can be fixed on support legs in a movable trestle and symmetrically arranged along the left and right of the central axis of a tunnel, and is used for construction workers to safely reach positions with larger gradients on two sides of the inverted arch to perform operations such as waterproof board laying, steel bar binding and the like; through two hydro-cylinders concerted movement, guarantee that side wall construction platform can reach each position of invert side wall, simple structure realizes effectually.
Description
Technical Field
The utility model relates to a side wall construction platform suitable for tunnel inverted arch construction, and belongs to the field of tunnel construction equipment.
Background
When the tunnel inverted arch is constructed, after the primary spraying of the inverted arch section is finished, waterproof cloth needs to be laid and a reinforcing mesh needs to be bound, and finally the concrete pouring work of the inverted arch is finished by utilizing a template. In the process of laying waterproof cloth on two sides of an inverted arch and binding a reinforcing mesh, due to the change of the gradient of the inverted arch, constructors are difficult to reach a construction position with a larger gradient, and work faces certain dangerousness.
Therefore, there is a need for a work platform that can help the constructors move freely within the scope of inverted arch construction.
The construction platform needs to be kept in a horizontal state in the working process. At present, the attitude of the platform is sensed through an attitude sensor, and then the attitude is adjusted by controlling the stretching of the oil cylinder, so that the problem of the attitude of the working platform in the operation process is solved, and the working platform is kept in a horizontal state in the operation process. Because the tunnel construction environment is abominable, the inverted arch construction area generally closes on the blasting area, and the precision and the stability of attitude sensor are easily influenced in this environment, can't guarantee the gesture accuracy in the work platform operation completely, and it is with high costs.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides the side wall construction platform suitable for tunnel inverted arch construction, the side wall construction platform is always kept in a horizontal state in the moving process by means of a connecting rod mechanism consisting of the stay bars and the connecting plates, the side wall construction platform is moved by using the oil cylinders, the structure is simple, and the realization effect is good.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a side wall construction platform suitable for tunnel invert construction, including supporting seat and work platform, be equipped with movable support between work platform and the supporting seat, movable support includes first connecting plate and second connecting plate, install first bracing arm and first vaulting pole articulated between first connecting plate and the supporting seat, install second support arm and second vaulting pole articulated between first connecting plate and the second connecting plate, the both ends of first hydro-cylinder are articulated with first bracing arm and supporting seat respectively, the both ends of second hydro-cylinder are articulated with first bracing arm and second support arm respectively, work platform is fixed in the second connecting plate.
The first support rod and the second support rod respectively comprise steel pipes, nuts are welded at two ends of the steel pipes, and screw rods are screwed into two ends of each steel pipe through the nuts.
The threads of the nut and the screw rod are trapezoidal threads matched with each other.
The first connecting plate is provided with two pin shaft holes from top to bottom, the end parts of the first support arm and the second support arm are connected to the pin shaft holes in the upper part through pin shafts, and the end parts of the first support arm and the second support arm are connected to the pin shaft holes in the lower part through pin shafts.
The second connecting plate is equipped with three round pin shaft hole from top to bottom, and the last installation position of second vaulting pole and work platform is through selling the hub connection in the round pin shaft hole on upper portion, and work platform's lower installation position is through selling hub connection in the round pin shaft hole at middle part, and the tip of second vaulting pole is through selling the hub connection in the round pin shaft hole of lower part.
The connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the three pin shaft holes of the second connecting plate, the connecting line of the hinge points at the two sides of the second supporting arm is parallel to the connecting line of the hinge points at the two sides of the second supporting rod, the connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the hinge points of the supporting seat and the first supporting arm and the connecting line of the hinge points of the first supporting rod, and the connecting line of the hinge points at the two sides of the first supporting arm is parallel to the connecting line of the hinge points at the two sides of the first supporting rod.
The number of the first supporting arms, the number of the first supporting rods, the number of the second supporting arms, the number of the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are even, and the first supporting arms, the first supporting rods, the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are symmetrically arranged along the connecting line of the first oil cylinder and the connecting line of the second oil cylinder respectively.
The working platform is provided with an upper ladder and a lower ladder.
The utility model has the beneficial effects based on the technical scheme that:
the side wall construction platform suitable for tunnel inverted arch construction provided by the utility model utilizes the synergistic effect of the two oil cylinders to drive the movable support to stretch, the working platform is ensured to be always horizontal through the double-quadrilateral structure of the movable support in the process, the working platform is completely realized through a mechanical structure, and an attitude sensor is omitted, so that the working platform can be kept in a horizontal state, and the overturning is prevented.
Drawings
FIG. 1 is a block diagram of the main body of the present invention in its most distal position;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a view showing the construction of the main body of the present invention at the lowest position;
FIG. 4 is a view B-B of FIG. 3, showing the connection of the second connecting plate to the remaining components;
FIG. 5 is a view C-C of FIG. 3 showing the connection of the first web to the remaining components;
FIG. 6 is a simplified schematic diagram of the connection of the present invention;
fig. 7 is a structural view of the first stay.
FIG. 8 is a schematic view of the present invention during inverted arch construction, wherein the left construction platform is located at the farthest position and the right construction platform is located at the middle position;
FIG. 9 is a schematic view of the present invention during inverted arch construction, wherein the left side of the figure shows the construction platform at the lowest point and the right side shows the construction platform at the retracted position;
FIG. 10 is a side view of the present invention secured to a mobile trestle;
in the figure: 1-a support base, 2-a first oil cylinder, 3-a first support arm, 4-a first support rod, 5-a first connecting plate, 6-a second oil cylinder, 7-a second support arm, 8-a second support rod, 9-a second connecting plate, 10-a working platform, 11-an upper ladder and a lower ladder, 12-a mobile trestle, 51-a lower pin shaft hole of the first connecting plate, 52-an upper pin shaft hole of the first connecting plate, 91-an upper pin shaft hole of the second connecting plate, 92-a pin shaft hole of the second connecting plate, 93-a lower pin shaft hole of the second connecting plate, 41-a lead screw, 42-a nut and 43-a steel pipe.
Detailed Description
The utility model is further illustrated by the following figures and examples.
Referring to fig. 1 to 10, the utility model provides a side wall construction platform suitable for tunnel inverted arch construction, which comprises a support seat 1 and a working platform 10, wherein a movable support is arranged between the working platform and the support seat, the movable support comprises a first connecting plate 5 and a second connecting plate 9, a first support arm 3 and a first support rod 4 are arranged between the first connecting plate and the support seat in a hinged manner, a second support arm 7 and a second support rod 8 are arranged between the first connecting plate and the second connecting plate in a hinged manner, two ends of a first oil cylinder 2 are respectively hinged with the first support arm and the support seat, two ends of a second oil cylinder 6 are respectively hinged with the first support arm and the second support arm, and the working platform is fixed on the second connecting plate. The middle of the first supporting arm and the middle of the second supporting arm can be connected through a cross beam, and the first oil cylinder and the second oil cylinder act on the midpoint of the cross beam to push the supporting arms to move.
The working platform is provided with an upper ladder 11 and a lower ladder 11, so that the constructors can conveniently go up and down.
The first support rod and the second support rod respectively comprise a steel pipe 43 with nuts 42 welded at two ends and a screw rod 41 screwed into two ends of the steel pipe through the nuts, so that the installation and the adjustment are convenient. The threads of the nut and the screw rod are trapezoidal threads matched with each other. When the side wall construction platform is in an initial state, the lengths of the first supporting rod and the second supporting rod can be adjusted through adjusting, so that the connecting line of the three pin holes of the second connecting plate is perpendicular to the horizontal plane, the connecting line of the two pin holes of the first connecting plate is perpendicular to the horizontal plane, and the connecting line of the two hinge points of the supporting seat, which are connected with the first supporting arm and the first supporting rod, is perpendicular to the horizontal plane.
The first connecting plate is provided with two pin shaft holes from top to bottom, namely a first connecting plate upper pin shaft hole 52 and a first connecting plate lower pin shaft hole 51, the first connecting plate lower pin shaft hole 51 is concentric with the connecting hinges of the first supporting arm and the second supporting arm, the first supporting arm upper pin shaft hole, the first supporting arm lower pin shaft hole 51, the first supporting arm lower pin shaft hole, the first supporting arm connecting hinge and the second supporting arm connecting hinge are connected through pin shafts, and the end parts of the first supporting rod and the second supporting rod are connected into the pin shaft holes at the upper parts through pin shafts; the pin shaft hole on the first connecting plate is concentric with the connecting hinge of the first support rod and the second support rod, the first support rod, the second support rod and the connecting hinge are connected through a pin shaft, and the end parts of the first support arm and the second support arm are connected into the pin shaft hole at the lower part through a pin shaft.
The second connecting plate is equipped with three round pin shaft hole from top to bottom, is round pin shaft hole 92 and round pin shaft hole 93 under the second connecting plate in round pin shaft hole 91, the second connecting plate on the second connecting plate respectively, and the last installation position of second vaulting pole and work platform is through selling the hub connection in the round pin shaft hole on upper portion, and work platform's lower installation position is through selling the hub connection in the round pin shaft hole at middle part, and the tip of second vaulting pole is through selling the hub connection in the round pin shaft hole of lower part. The working platform is connected with the second connecting plate through two hinge points of the pin shaft hole 92 in the second connecting plate and the pin shaft hole 93 under the second connecting plate in the rotation plane, and the two hinge points can not move mutually. Namely, as long as the posture of the second connecting plate is ensured to be unchanged, the posture of the working platform cannot be changed.
The distance between the pin hole 91 on the second connecting plate of the second connecting plate and the pin hole 93 under the second connecting plate is equal to the distance between the upper pin hole and the lower pin hole of the first connecting plate, and the distance between the supporting seat and the hinge point of the first supporting arm and the hinge point of the first supporting rod is equal to the distance between the upper pin hole and the lower pin hole of the first connecting plate. Therefore, the connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the three pin shaft holes of the second connecting plate, the connecting line of the hinge points at the two sides of the second supporting arm is parallel to the connecting line of the hinge points at the two sides of the second supporting rod, the connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the hinge points of the supporting seat and the first supporting arm and the connecting line of the hinge points of the first supporting rod, and the connecting line of the hinge points at the two sides of the first supporting arm is parallel to the connecting line of the hinge points at the two sides of the first supporting rod. The number of the first supporting arms, the number of the first supporting rods, the number of the second supporting arms, the number of the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are even, and the first supporting arms, the first supporting rods, the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are symmetrically arranged along the connecting line of the first oil cylinder and the connecting line of the second oil cylinder respectively.
The working principle of the utility model is as follows:
setting: l1Is a connecting line of the centers of the upper and lower pin holes of the second connecting plate2The circle centers of the upper and lower two pin holes of the first connecting plate are connected3Is a connecting line of the supporting seat and the connecting hinge point of the first supporting arm and the connecting hinge point of the first supporting rod respectively4Is a connecting line of hinge points at two sides of the second support rod l5Is a connecting line of hinge points at two sides of the second supporting arm6Is a connecting line of hinge points at two sides of the first supporting rod7Is a connecting line of hinge points at two sides of the first supporting arm. According to the relation of each pin hole of the first connecting plate and the second connecting plate, the following can be obtained:
l1＝l2＝l3
l1//l2//l3
l1、l2、l3the three lines are equal in length and parallel to each other, and can be obtained1、l4、l2、l5Four line segments forming a parallelogram, |2、l6、l3、l7The four line segments form a parallelogram. The device can thus be simplified to two parallelogram linkages. Wherein line segment l3The supporting seat is a connecting line of two hinges on the supporting seat, and the supporting seat is rigidly fixed on the middle supporting leg all the time in the motion process of the side wall construction platform, so that the line segment l can be considered to be in a simplified model3The position length of (a) is kept constant; line segment l1The line segment l is a connecting line of the upper pin hole and the lower pin hole of the second connecting plate and is connected with the working platform1The attitude of (a) represents the attitude of the work platform, i.e. the line segment l1Maintaining the vertical state represents that the work platform is maintained in a horizontal state.
When the first oil cylinder pushes the first supporting arm to move, the line segment l7Winding wire segment l7、l3Due to rotation of the point of intersection l2、l6、l3、l7The length of the four line segments is unchanged and still is a parallelogram, and the line segment l3、l2Satisfies the relation l2＝l3，l2//l3. When the second oil cylinder pushes the second supporting arm to move, the line segment l5Winding wire segment l2、l5Rotation of the point of intersection,/1、l4、l2、l5The length of the four line segments is unchanged and still is a parallelogram, and l is satisfied2//l1I.e. l3//l1. The device is held in an initial state of installation1//l2//l3During the movement of the platform, the dimensions of the various components do not change, and the line segment l1The vertical state can be kept, namely the working platform can be kept in the horizontal state, and the overturning can not occur in the moving process.
The device reaches l in the initial state1//l2//l3The relationship is to be satisfied: l4＝l5、l6＝l7. The total length of the support rod is controlled by adjusting the length of the screw rod screwed into the nut during the installation in the initial state, so that the distance between the head and the tail hinge points of the first support arm is equal to the distance between the head and the tail hinge points of the first support rod; the total length of the support rod is controlled by adjusting the length of the screw rod screwed into the nut, so that the distance between the head and tail hinge points of the second support arm is equal to the distance between the head and tail hinge points of the second support arm, and the horizontal state of the platform can be kept in the moving process.
The side wall construction platform suitable for tunnel inverted arch construction can be fixed on support legs in a movable trestle and symmetrically arranged along the left and right of the central axis of a tunnel, and is used for construction workers to safely reach positions with larger gradients on two sides of the inverted arch to perform operations such as waterproof board laying, steel bar binding and the like; through two hydro-cylinders concerted movement, guarantee that side wall construction platform can reach each position of invert side wall, simple structure realizes effectually.
Claims (8)
1. The utility model provides a side wall construction platform suitable for tunnel invert construction, includes supporting seat and work platform, its characterized in that: be equipped with the movable support between work platform and the supporting seat, the movable support includes first connecting plate and second connecting plate, install first support arm and first vaulting pole between first connecting plate and the supporting seat with articulated formula, install second support arm and second vaulting pole between first connecting plate and the second connecting plate with articulated formula, the both ends of first hydro-cylinder are articulated with first support arm and supporting seat respectively, the both ends of second hydro-cylinder are articulated with first support arm and second support arm respectively, work platform is fixed in the second connecting plate.
2. The side wall construction platform suitable for tunnel invert construction according to claim 1, characterized in that: the first support rod and the second support rod respectively comprise steel pipes, nuts are welded at two ends of the steel pipes, and screw rods are screwed into two ends of each steel pipe through the nuts.
3. The side wall construction platform suitable for tunnel invert construction according to claim 2, characterized in that: the threads of the nut and the screw rod are trapezoidal threads matched with each other.
4. The side wall construction platform suitable for tunnel invert construction according to claim 1, characterized in that: the first connecting plate is provided with two pin shaft holes from top to bottom, the end parts of the first support arm and the second support arm are connected to the pin shaft holes in the upper part through pin shafts, and the end parts of the first support arm and the second support arm are connected to the pin shaft holes in the lower part through pin shafts.
5. The side wall construction platform suitable for tunnel invert construction according to claim 1, characterized in that: the second connecting plate is equipped with three round pin shaft hole from top to bottom, and the last installation position of second vaulting pole and work platform is through selling the hub connection in the round pin shaft hole on upper portion, and work platform's lower installation position is through selling hub connection in the round pin shaft hole at middle part, and the tip of second vaulting pole is through selling the hub connection in the round pin shaft hole of lower part.
6. A side wall construction platform suitable for tunnel invert construction according to claim 4 or 5, characterized in that: the connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the three pin shaft holes of the second connecting plate, the connecting line of the hinge points at the two sides of the second supporting arm is parallel to the connecting line of the hinge points at the two sides of the second supporting rod, the connecting line of the two pin shaft holes of the first connecting plate is parallel to the connecting line of the hinge points of the supporting seat and the first supporting arm and the connecting line of the hinge points of the first supporting rod, and the connecting line of the hinge points at the two sides of the first supporting arm is parallel to the connecting line of the hinge points at the two sides of the first supporting rod.
7. The side wall construction platform suitable for tunnel invert construction according to claim 1, characterized in that: the number of the first supporting arms, the number of the first supporting rods, the number of the second supporting arms, the number of the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are even, and the first supporting arms, the first supporting rods, the second supporting rods, the number of the first connecting plates and the number of the second connecting plates are symmetrically arranged along the connecting line of the first oil cylinder and the connecting line of the second oil cylinder respectively.
8. The side wall construction platform suitable for tunnel invert construction according to claim 1, characterized in that: the working platform is provided with an upper ladder and a lower ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994085.1U CN215860196U (en) | 2021-08-24 | 2021-08-24 | Side wall construction platform suitable for tunnel invert construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994085.1U CN215860196U (en) | 2021-08-24 | 2021-08-24 | Side wall construction platform suitable for tunnel invert construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860196U true CN215860196U (en) | 2022-02-18 |
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ID=80241737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121994085.1U Active CN215860196U (en) | 2021-08-24 | 2021-08-24 | Side wall construction platform suitable for tunnel invert construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860196U (en) |
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2021
- 2021-08-24 CN CN202121994085.1U patent/CN215860196U/en active Active
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