Safe operation platform and tunnel lagging jack trolley

Abstract

The utility model discloses a safe operation platform and a tunnel lagging jack trolley, and belongs to the field of engineering machinery. The safety operation platform comprises a bottom plate; the fence is connected to the periphery above the bottom plate; the bottom end of the stand column is fixedly connected to the edge of the bottom plate, and the top end of the stand column is connected with a protective shield which can be folded and unfolded; and the descent control device is fixedly mounted on the outer side of the fence. When the safe operation platform is in a working state, the protective shield can be opened, so that falling stones can be prevented from hitting the body of a worker; in the idle state, the protective shield can be folded, the occupied space is reduced, and therefore mechanical equipment can flexibly move in the tunnel. In addition, the safe operation platform further comprises a descent control device, so that when the equipment is shut down due to faults, the workers can conveniently and stably evacuate from the high-altitude hanging basket, the situation that the workers are trapped is avoided, and the safety of the whole equipment is further improved. The utility model further discloses the tunnel lagging jack trolley.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a safe working platform and a tunnel arch trolley. Background Art

[0002] In tunnel construction, when the surrounding rock grade is poor, arch support is often required to improve the stability of the surrounding rock. With the implementation of mechanization of tunnel construction, arch support has been constructed using trolleys (such as Figure 1 It greatly improves the construction efficiency.

[0003] During the operation, the workers are working in the limited space of the hanging basket 90' at the end of the robotic arm. Due to the instability of the surrounding rock, rocks may fall, which poses a safety hazard. At the same time, if the equipment fails and the robotic arm stops moving, the workers will be trapped in the high-altitude hanging basket 90'. The traditional practice is for the workers to jump from a high altitude or climb down along the robotic arm, both of which pose safety hazards.

[0004] In view of this, it is necessary to propose a new technical solution to solve the above technical problems. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a safe working platform and a tunnel arch trolley, which can not only prevent personnel from being hit by falling rocks, but also facilitate workers to evacuate from high altitudes in time, effectively improving the safety factor of the equipment.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application provides a safe working platform connected to the end of the mechanical arm of the tunnel arch trolley, and the safe working platform includes:

[0007] Base plate;

[0008] A fence connected around the base plate;

[0009] A column, the bottom end of which is fixedly connected to the edge of the bottom plate, and the top end of which is connected to a foldable and expandable protective shield; and

[0010] The descender is fixedly installed on the outer side of the fence.

[0011] As a further improvement, the protective shield has a shield plate, one side of which is provided with a pair of connecting plates, which are hinged to the top of the column so that the shield plate can swing up and down around a horizontal axis; a pair of telescopic rods are also provided between the shield plate and the column, one end of the telescopic rod is connected to the column and the other end is connected to the shield plate.

[0012] As a further improvement, the area of ​​the shield plate matches the area of ​​the fence.

[0013] As a further improvement, the shield is inclined toward the column when in the expanded state.

[0014] As a further improvement, the shield is rectangular.

[0015] As a further improvement, the column includes a fixed pipe column, a movable pipe column and a positioning mechanism. The fixed pipe column is fixedly connected to the base plate, and the movable pipe column can be telescopically sleeved on the top of the fixed pipe column up and down; the positioning mechanism is arranged between the fixed pipe column and the movable pipe column, and includes a plurality of positioning holes and a positioning pin. The positioning holes are opened on the pipe walls of the fixed pipe column and the movable pipe column, and the positioning pin can be inserted into the positioning hole to position the movable pipe column on the fixed pipe column.

[0016] As a further improvement, the safety working platform further comprises an arch lifting mechanism, which is located on the opposite side of the column and is used for lifting the arch frame.

[0017] As a further improvement, the safety working platform further comprises a movable pedal, an edge of which is pivotally connected to the base plate, and the movable pedal can be arranged to be flipped upside down and can be positioned in a horizontal position or a vertical position.

[0018] As a further improvement, the pivot axis of the movable pedal is located inside the base plate.

[0019] A second aspect of the present application provides a tunnel arch trolley, which includes a mechanical arm and a safety working platform installed at the end of the mechanical arm.

[0020] Compared with the prior art, the utility model brings the following technical effects:

[0021] The safety work platform of the present application can open the protective shield when in working state, thereby preventing falling rocks from hitting the workers; when in idle state, the protective shield can be folded up to reduce the occupied space so that the mechanical equipment can be flexibly moved in the tunnel. The safety work platform of the present application also includes a descender, so when the equipment fails and stops, it is convenient for the workers to evacuate the high-altitude hanging basket smoothly to avoid being trapped, thereby further improving the safety of the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1The state diagram of the tunnel arch trolley during construction in the prior art is shown;

[0024] Figure 2 The working state diagram of the safety working platform of a preferred embodiment of the utility model is shown (protective shield is open);

[0025] Figure 3 Another working state diagram (protective shield folded) of the safety working platform of a preferred embodiment of the utility model is shown.

[0026] Description of main component symbols:

[0027] Safety working platform-100; bottom plate-10; fence-20; column-30; descender-40; protective shield-50; shield plate-51; connecting piece-52; telescopic rod-53; arch mechanism-60; movable pedal-70; fixing pin-71; hook-72; fixing piece-73; side fence-74. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0030] Example

[0031] See also Figure 1-3 , this embodiment provides a safe working platform 100, which is connected to the end of the mechanical arm of the tunnel arch trolley. It should be noted that this embodiment mainly wants to show the safe working platform 100, so the specific structure of the tunnel arch trolley and the mechanical arm is not the focus of the description of this embodiment. Those skilled in the art can understand that this actually means that the safe working platform 100 can be connected to any existing tunnel arch trolley. The safe working platform 100 will be described in detail below.

[0032] Please refer to Figure 2 and Figure 3 In this embodiment, the safety work platform 100 includes a base plate 10 , a fence 20 , a column 30 and a descender 40 .

[0033] The base plate 10 is the foundation of the entire safe working platform 100, and is used for workers to stand and move. The specific structure of the base plate 10 itself is not limited, such as a hollow structure, a flat plate structure, etc. The bottom of the base plate 10 is provided with a structure connected to the mechanical arm, such as a turntable and a corresponding driving mechanism, so that the entire safe working platform 100 can achieve horizontal rotation, thereby being able to flexibly adjust the posture of the platform, so that the workers can better complete the arch support operation.

[0034] The fence 20 is connected to the four sides above the bottom plate 10, and the fence 20 plays a protective role to ensure the safety of workers working on the platform. The structure of the fence 20 itself is not limited, and can be a railing type, a panel type, etc. For example, the present embodiment adopts a railing type structure, which has the advantages of being lighter and saving materials.

[0035] The column 30 is installed at the edge of the bottom plate 10. Specifically, the bottom end of the column 30 is fixedly connected to the edge of the bottom plate 10, and the top end of the column 30 is connected to a foldable and expandable protective shield 50. When in working state, the protective shield 50 is in an expanded state, thereby preventing falling rocks from hitting the workers and playing a protective role. When in idle state, the protective shield 50 is in a folded state, thereby reducing the occupied space, avoiding interference with other mechanical arms, and improving the mobility of the entire equipment in the tunnel.

[0036] The descender 40 is fixedly installed on the outside of the fence 20. The descender 40 itself belongs to the existing technology and can be directly purchased on the market, so its specific structure, function and use method are not described in detail. In this embodiment, a descender 40 is installed on the outside of the fence 20, which has excellent practicality: when failures often occur in tunnel construction scenes, at this time, the equipment stops working, the mechanical arm cannot move to make the safe working platform 100 descend to a position close to the ground, and the staff can smoothly descend to the ground with the help of the descender 40, evacuate the height, avoid jumping off the platform or climbing down the mechanical arm, thereby improving the safety of the entire construction process.

[0037] Specifically in this embodiment, the protective shield 50 has a shield plate 51, which is rectangular. A pair of connecting pieces 52 are provided on one side of the shield plate 51, and the connecting pieces 52 are hinged to the top of the column 30 so that the shield plate 51 can swing up and down around the horizontal axis; a pair of telescopic rods 53 are also provided between the shield plate 51 and the column 30, and one end of the telescopic rod 53 is connected to the column 30 and the other end is connected to the shield plate 51. When the telescopic rod 53 is extended, the shield plate 51 can be opened; when the telescopic rod 53 is shortened, the shield plate 51 can be folded up, and the shield plate 51 is close to the column 30.

[0038] Specifically, the area of ​​the shield plate 51 matches the area of ​​the fence 20. In practice, the shield plate 51 can basically cover the entire area above the fence 20. When the staff is on the platform, the shield plate 51 can provide maximum protection. It is worth mentioning that the shape of the shield plate 51 is not limited to the rectangle of this embodiment, but can also be other geometric shapes, such as polygon, ellipse, etc., depending on the overall outline of the platform.

[0039] As a further improvement, the shield plate 51 is tilted toward the column 30 when in the open state. This arrangement is to allow the fallen rocks on the shield plate 51 to slide down quickly along the tilt angle, rather than being accumulated on the shield plate 51.

[0040] In some other embodiments, the column 30 includes a fixed pipe column, a movable pipe column and a positioning mechanism (not shown), wherein the fixed pipe column is fixedly connected to the base plate 10, and the movable pipe column can be telescopically sleeved on the top of the fixed pipe column; the positioning mechanism is arranged between the fixed pipe column and the movable pipe column, and includes a plurality of positioning holes and a positioning pin, wherein the positioning holes are opened on the pipe walls of the fixed pipe column and the movable pipe column, and the positioning pin can be inserted into the positioning hole to position the movable pipe column on the fixed pipe column.

[0041] It should be noted that the positioning holes on the fixed pipe column and the movable pipe column are set correspondingly. When positioning, the positioning holes of the two pipe columns need to be aligned, and then the positioning pins are inserted for use. When the staff is relatively tall, the movable pipe column can be lifted up to align the positioning holes at the lower position of the movable pipe column with the positioning holes of the fixed pipe column, and then the positioning pins are inserted to raise the height of the protective shield 50 to match the height of the staff. This positioning mechanism is relatively common in the prior art, so it is not shown in the figure in this embodiment.

[0042] Specifically in this embodiment, the safety working platform 100 also includes an arch lifting mechanism 60, which is located on the opposite side of the column 30, and the arch lifting mechanism 60 is used to lift the arch frame. The staff stands in the fence 20 and cooperates with the arch lifting mechanism 60 to lift the arch frame, and the two cooperate with each other to complete the arch frame operation. It should be noted that the arch lifting mechanism 60 in this embodiment can adopt existing technology, for example: Chinese patent application No. 202121818440.X A flexible pickup device, auxiliary arm and tunnel arch machine used in the technology.

[0043] As a further improvement, the safety work platform 100 further includes a movable pedal 70, one edge of which is pivotally connected to the bottom plate 10. Specifically, the pivot axis of the movable pedal 70 is located inside the bottom plate 10, that is, a certain distance is set between the pivot axis and the edge of the bottom plate 10. The movable pedal 70 can be turned upside down and can be positioned in a horizontal position or a vertical position.

[0044] When the movable pedal 70 is laid down, since there is a certain distance between the pivot axis and the edge of the bottom plate 10 , part of the bottom plate 10 can be supported under the movable pedal 70 so that it can maintain a substantially horizontal position.

[0045] A safety lock is also provided between the movable pedal 70 and the base plate 10, and the safety lock includes a fixing pin 71 provided on the movable pedal 70 near the pivot axis, and a hook 72 provided on the base plate 10. The fixing pin 71 is specifically fixed vertically on a fixing plate 73, and the fixing plate 73 is perpendicular to the plane of the movable pedal 70; one end of the hook 72 is hinged on the base plate 10, and the hook 72 can be manually flipped, and the hook 72 is in the shape of a hook. The working principle of this safety lock is: flip the hook 72 upward, and at the same time flip the movable pedal 70 upward to a position perpendicular to the base plate 10, at which time the fixing pin 71 moves to a position close to the base plate 10, and the hook 72 is lowered, so that the fixing pin 71 is limited in the hook 72, and the movable pedal 70 can be locked in a vertical position.

[0046] As a further improvement, a side rail 74 is provided on the movable pedal 70 . The side rail 74 is specifically provided perpendicular to the edge of the movable pedal 70 . When the movable pedal 70 is in a vertical position, the side rail 74 fits with the fence 20 on the side of the column 30 .

[0047] The provision of the movable pedal 70 can achieve the purpose of expanding the movable space of the safety working platform 100, thereby making construction more convenient for the workers.

[0048] In summary, the safety working platform 100 of the present application can open the protective shield 50 when in working state, thereby preventing falling rocks from hitting the workers; when in idle state, the protective shield 50 can be folded up to reduce the occupied space so that the mechanical equipment can be flexibly moved in the tunnel. The safety working platform 100 of the present application also includes a descender 40, so when the equipment fails and stops, it is convenient for the workers to evacuate the high-altitude hanging basket smoothly to avoid being trapped, thereby further improving the safety of the entire equipment.

[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these still fall within the scope of protection of the invention of the utility model.

Claims

1. A safe working platform connected to the end of the mechanical arm of the tunnel arch trolley, characterized in that: The safe working platform comprises: Base plate; A fence connected around the base plate; A column, the bottom end of which is fixedly connected to the edge of the bottom plate, and the top end of which is connected to a foldable and expandable protective shield; and The descender is fixedly installed on the outer side of the fence.

2. The safe working platform according to claim 1, characterized in that: The protective shield has a shield plate, one side of which is provided with a pair of connecting plates, which are hinged to the top of the column so that the shield plate can swing up and down around a horizontal axis; a pair of telescopic rods are also provided between the shield plate and the column, one end of the telescopic rods is connected to the column and the other end is connected to the shield plate.

3. The safe working platform according to claim 2, characterized in that: The area of ​​the shield plate matches the area of ​​the fence.

4. The safe working platform according to claim 2, characterized in that: The shield plate is inclined toward the column when in the expanded state.

5. The safe working platform according to claim 2, characterized in that: The shield is rectangular.

6. The safe working platform according to claim 1, characterized in that: The column includes a fixed pipe column, a movable pipe column and a positioning mechanism. The fixed pipe column is fixedly connected to the base plate, and the movable pipe column can be telescopically sleeved on the top of the fixed pipe column up and down; the positioning mechanism is arranged between the fixed pipe column and the movable pipe column, and includes a plurality of positioning holes and a positioning pin. The positioning holes are opened on the pipe walls of the fixed pipe column and the movable pipe column, and the positioning pin can be inserted into the positioning hole to position the movable pipe column on the fixed pipe column.

7. The safe working platform according to claim 1, characterized in that: The safety working platform further comprises an arch lifting mechanism, which is located at the opposite side of the column and is used for lifting the arch frame.

8. The safe working platform according to claim 1, characterized in that: The safety working platform further comprises a movable pedal, an edge of which is pivotally connected to the bottom plate, and the movable pedal can be arranged to be flipped up and down and can be positioned in a horizontal position or a vertical position.

9. The safe working platform according to claim 8, characterized in that: The pivot axis of the movable pedal is located inside the bottom plate.

10. A tunnel arch trolley, characterized in that: It comprises a mechanical arm and a safety working platform as described in any one of claims 1 to 9 installed at the end of the mechanical arm.

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