Tunnel inverted arch safety trolley with telescopic escape pipeline structure

Abstract

The invention discloses a tunnel inverted arch safety trolley with a telescopic escape pipeline structure, relates to the technical field of tunnel operation trolleys, utilizes the working principle of the tunnel inverted arch trolley, can be synchronously used as a related structure for building an escape pipeline, and particularly realizes directional movement of a truss frame according to the gear meshing principle. On the basis, a steel cable assembly is additionally arranged according to the moving mode of the truss frame and the outer frame, a high-strength steel cable serves as a key structure for connecting and pulling the truss frame, and in the moving process of the truss frame, the position of the gravity center point in the overall structure is indirectly changed through the retracting and releasing actions of the high-strength steel cable; and the moving process of the truss frame is not interfered, and the purpose of ensuring the butt joint position and the butt joint stability of the escape pipeline is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel operation trolleys, and in particular to a tunnel invert safety trolley with a telescopic escape pipe structure. Background Art

[0002] The tunnel invert safety trolley has multiple functions in tunnel construction, mainly including improving construction efficiency, reducing labor intensity and ensuring construction safety. It mainly plays an auxiliary role, but it should be noted that: combined with the extensibility of the safety trolley, it can also be used as a means of safe escape.

[0003] Its essence mainly utilizes the lifting structure and the deformation / telescopic structure to extend one end of the escape pipe to the designated area. However, in this process, because the length of the entire trolley is partially extended, the center of gravity of the entire trolley is greatly shifted, which indirectly affects the pipe docking position and also affects the stability of the pipe connection. This application proposes a solution. Summary of the invention

[0004] The purpose of the present invention is to provide a tunnel arch safety trolley with a telescopic escape pipe structure. The operation process of the tunnel trolley indirectly causes the overall trolley length to be partially extended during the process of extending the escape pipe, so that the center of gravity of the trolley is greatly offset, which directly affects the pipe connection position or the stability of the pipe connection.

[0005] The purpose of the present invention can be achieved by the following technical solutions: a tunnel inverted arch safety trolley with a telescopic escape pipe structure comprises a straight chassis component, a lifting component assembly, and an escape pipe body, wherein the lifting component assembly is installed at both ends of the straight chassis component, and an outer frame is installed at the upper end of the lifting component assembly, and a truss frame is provided in the outer frame;

[0006] The escape duct body is arranged inside the truss frame, a straight gear plate is installed at the center line position of the lower end of the truss frame, a second driving structure corresponding to the straight gear plate is arranged at the lower side position of the outer frame, and a steel cable assembly corresponding to the truss frame is installed on the outer frame.

[0007] It is further configured as follows: the truss frames are linearly and equidistantly arranged along the length direction of the outer frame, and the truss frames at adjacent positions are fixed by bolts.

[0008] It is further configured as follows: the second driving structure is composed of a driving motor and a driving gear, and the driving gear is meshed with the straight gear plate.

[0009] It is further configured as follows: the steel cable assembly includes a first driving structure, a power wheel group, a transmission wheel group, a rotating wheel group and a high-strength steel cable, the first driving structure is installed on the lower side of the outer frame, the power wheel group is rotatably connected to the outer frame through the first driving structure, and a power steel cable is installed between the power wheel group and the transmission wheel group, the high-strength steel cable is arranged in the transmission wheel group and the rotating wheel group, and one end of the high-strength steel cable corresponds to the position on the truss frame.

[0010] It is further configured as follows: the transmission wheel group and the rotating wheel group are arranged at the upper side of the outer frame, the two ends of the power steel cable are respectively arranged at the two ends of the transmission wheel group and the rotating wheel group, and the other end of the high-strength steel cable is arranged at the middle end of the transmission wheel group.

[0011] It is further configured as follows: the transmission wheel group is rotationally connected to the outer frame, a pressure sensing assembly corresponding to the intermediate wheel group is installed on the outer frame, and the intermediate wheel group is arranged in the vertical direction and at the transmission end position of the pressure sensing assembly.

[0012] It is further configured as follows: a branch steel cable is installed at the other end of the high-strength steel cable, a horseshoe-shaped slide corresponding to the truss frame is installed at the end of each branch steel cable, and a horseshoe-shaped slide groove corresponding to the horseshoe-shaped slide is opened at the center line position of the upper end of the truss frame.

[0013] It is further configured as follows: the upper end of the horseshoe-shaped slide groove is open, and the horseshoe-shaped slide seat is slidably connected in the horseshoe-shaped slide groove.

[0014] It is further configured that: the branch steel cables and high-strength steel cables away from the straight-moving chassis assembly are not connected to the truss frame.

[0015] The present invention has the following beneficial effects:

[0016] 1. The working principle of the tunnel invert trolley can also be used as an auxiliary device for building the escape pipe. Its essence is based on the truss frame and the outer frame. The truss frame is the key structure for installing the escape pipe. It mainly uses the truss frame to slide in the outer frame through the gear meshing principle to extend the escape pipe to the designated position and complete the pipe docking process. In addition, each truss frame can be quickly disassembled and assembled;

[0017] 2. In view of the movement between the truss frame and the outer frame, a steel cable assembly is added to form a triangular structure based on the high-strength steel cable and the overall truss frame. The high-strength steel cable is used as the key structure for pulling the truss frame, and the truss frame is retracted and extended in coordination with the movement process, thereby not affecting the movement process of the truss frame. The key is to indirectly change the center of gravity position in the overall structure by the retraction and extension action of the high-strength steel cable, thereby ensuring the movement mode of the escape duct and ensuring the docking position and docking stability of the escape duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a tunnel invert safety trolley with a telescopic escape pipe structure proposed by the present invention;

[0020] Figure 2 The invention provides a tunnel invert safety trolley with a telescopic escape pipe structure. Figure 1 A front view of

[0021] Figure 3 It is a cross-sectional view of the corresponding truss frame of the inner and outer frames of the tunnel invert safety trolley with a telescopic escape pipe structure proposed by the present invention;

[0022] Figure 4 A cutaway view of a truss frame in a tunnel invert safety trolley with a telescopic escape pipe structure proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of a steel cable assembly in a tunnel invert safety trolley with a telescopic escape pipe structure proposed by the present invention;

[0024] Figure 6 The invention provides a tunnel invert safety trolley with a telescopic escape pipe structure. Figure 5 A partial top view of .

[0025] In the figure: 1. straight chassis assembly; 2. horseshoe slide; 3. lifting assembly assembly; 4. escape duct body; 5. outer frame; 6. transmission wheel group; 7. transfer wheel group; 8. high-strength steel cable; 9. pressure sensor assembly; 10. truss frame; 11. power wheel group; 12. first drive structure; 13. straight gear plate; 14. horseshoe slide; 15. second drive structure; 16. branch steel cable; 17. power steel cable. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1: In the process of extending the escape pipe during the operation of the tunnel trolley, the overall trolley length is indirectly extended partially, so that the center of gravity of the trolley is greatly offset, which directly affects the pipe connection position or the stability of the pipe connection. The following technical solutions are proposed:

[0028] Reference Figures 1 to 6 The tunnel inverted arch safety trolley with a telescopic escape pipe structure in this embodiment includes a straight chassis component 1, a lifting component assembly 3, and an escape pipe body 4. The lifting component assembly 3 is installed at both ends of the straight chassis component 1, and an outer frame 5 is installed at the upper end of the lifting component assembly 3. A truss frame 10 is provided in the outer frame 5;

[0029] The escape duct body 4 is arranged inside the truss frame 10, a straight gear plate 13 is installed at the center line position of the lower end of the truss frame 10, a second driving structure 15 corresponding to the straight gear plate 13 is arranged at the lower side position of the outer frame 5, and a steel cable assembly corresponding to the truss frame 10 is installed on the outer frame 5, the truss frame 10 is linearly equidistantly arranged along the length direction of the outer frame 5, and the truss frames 10 at adjacent positions are fixed by bolts, and the second driving structure 15 is composed of a driving motor and a driving gear, and the driving gear is meshed with the straight gear plate 13.

[0030] Working principle: Refer to Figure 1 and Figure 2 To explain: the overall structure is based on the tunnel invert trolley, wherein the straight chassis assembly 1 can perform horizontal or vertical linear movement, and the lifting assembly assembly 3 is essentially a scissor-type lifting platform, wherein the outer frame 5 is installed at the upper end position of the lifting assembly assembly 3, and the escape pipe 4 can be installed by a plurality of truss frames 10, and the truss frame 10 is arranged inside the outer frame 5, so as to utilize the operation principle of the tunnel trolley, under the action of the lifting assembly assembly 3, the outer frame 5 is connected to the truss frame 10 and lifted to the specified position, specifically to ensure that the position of one end of the escape pipe 4 is aligned with the specified position;

[0031] The key lies in the movement process of the truss frame 10, see Figure 4 The essence of the second driving structure 15 is that the driving motor drives the driving gear to rotate at a constant speed, thereby driving the truss frame 10 to move in a directional manner, moving the escape pipe body 4 to a specified position, thereby completing the docking of the escape pipe body 4;

[0032] It should also be noted that the total length of the outer frame 5 is relatively short, and the truss frames 10 are connected by a bolt structure, so that the total length of the multiple truss frames 10 is greater than the length of the outer frame 5. Therefore, the multiple truss frames 10 move linearly under the action of the second drive assembly 15 to move the escape duct body 4 to the specified position.

[0033] Embodiment 2: Explanation of the steel cable assembly in Embodiment 1:

[0034] The steel cable assembly includes a first driving structure 12, a power wheel group 11, a transmission wheel group 6, a transfer wheel group 7 and a high-strength steel cable 8. The first driving structure 12 is installed on the lower side of the outer frame 5. The power wheel group 11 is rotatably connected to the outer frame 5 through the first driving structure 12, and a power steel cable 17 is installed between the power wheel group 11 and the transmission wheel group 6. The high-strength steel cable 8 is arranged in the transmission wheel group 6 and the transfer wheel group 7, and one end of the high-strength steel cable 8 corresponds to the truss frame 10.

[0035] The transmission wheel group 6 and the rotating wheel group 7 are arranged on the upper side of the outer frame 5, the two ends of the power steel cable 17 are respectively arranged at the two ends of the transmission wheel group 6 and the rotating wheel group 7, the other end of the high-strength steel cable 8 is arranged at the middle end of the transmission wheel group 6, the transmission wheel group 6 is rotatably connected to the outer frame 5, and a pressure sensing assembly 9 corresponding to the rotating wheel group 7 is installed on the outer frame 5, and the rotating wheel group 7 is arranged in the vertical direction and at the transmission end position of the pressure sensing assembly 9.

[0036] Solution description: Combined with the basic principle of the tunnel trolley, the overall structure uses the straight chassis assembly 1 as the landing point. When the center point of the overall truss frame 5 and the center point of the outer frame 5 are in the same plane, the center of gravity of the overall tunnel trolley is maintained on the straight chassis assembly 1, and combined with Figure 2 To illustrate, when the whole truss frame 5 moves from left to right, the center of gravity of the whole structure deviates, and a steel cable structure is added to maintain the center of the whole structure, as shown below:

[0037] S1: The high-strength steel cable 8 is used as the key structure to connect the truss frame 10, and the power cable 17 is used as the power transmission structure. The two ends of the power cable 17 are respectively wound on the power wheel group 11 and the transmission wheel group 6. Figure 5 For example, when the power wheel group 11 rotates clockwise, the power cable 17 is wound on the power wheel group 11, and the power cable 17 performs a line-releasing action relative to the transmission wheel group 6, so that the power wheel group 11 performs a coordinated rotation, which is specifically manifested as a counterclockwise rotation, so that the high-strength steel cable 8 also performs a line-reeling or line-releasing action relative to the transmission wheel group 6. The winding method of the power cable 17 on the power wheel group 11 and the transmission wheel group 6 and the high-strength steel cable 8 on the transmission wheel group 6 is not specifically limited in this embodiment;

[0038] S2: Because the whole truss frame 10 is fixed by bolts, the straight gear plate 13 is also aligned by "splicing", ensuring that the second driving structure 15 performs directional transmission on the truss frame 10, and the high-strength steel cable 8 is explained: multiple truss frames 10 are "bound" to the outer frame 5, combined with Figure 2 It is explained that the multiple truss frames 10 are pulled by the high-strength steel cables 8, so that the gravity changes of the multiple truss frames 10 are still borne by the outer frame 5, and the high-strength steel cables 8 need to cooperate with the movement process of the truss frames 10 to perform winding or releasing actions, so that when the truss frames 10 are directional moved, the stability of the overall truss frame 10 is guaranteed by the pulling action of the high-strength steel cables 8, and the position and docking stability of the subsequent escape pipe body 4 during docking are guaranteed.

[0039] Embodiment 3: The connection process between the high-strength steel cable and the truss frame is described as follows:

[0040] A branch steel cable 16 is installed at the other end of the high-strength steel cable 8, and a horse-shaped slide 2 corresponding to the truss frame 10 is installed at the end of each branch steel cable 16. A horse-shaped slide groove 14 corresponding to the horse-shaped slide 2 is opened at the center line position of the upper end of the truss frame 10. The upper end of the horse-shaped slide groove 14 is open, and the horse-shaped slide 2 is slidably connected in the horse-shaped slide groove 14. The branch steel cable 16 away from the straight chassis assembly 1 and the high-strength steel cable 8 are not connected to the truss frame 10.

[0041] Solution Description: Conventional cable structures are to tie one end of the cable to an object. Figure 2 For explanation, the two ends of the high-strength steel cable 8 are respectively arranged on the transmission wheel set 6 and one of the truss frames 10, which is different from the conventional steel cable connection method as shown below;

[0042] S3: The construction process of the truss frame 10 and the escape pipe body 4 is as follows: Figure 2 For example, each truss frame 10 is directional moved from left to right, and each truss frame 10 is numbered from left to right as 1.2.3...i, because during the construction process, the truss frame 10 with number i needs to be dismantled after completing one construction action, and is relocated to the leftmost position or directly removed. For this, one end of the high-strength steel cable 8 is not connected to the truss frame 10 with number i, so as to ensure that the truss frame 10 with number i can be dismantled at any time;

[0043] S4: In combination with S3, it is explained that: a plurality of branch steel cables 16 are synchronously added to the high-strength steel cable 8, and the branch steel cables 16 can perform secondary traction on the truss frame 10 relative to the high-strength steel cable 8. In essence, it can be understood that: the high-strength steel cable 8 pulls a plurality of truss frames 10, but it can also be pulled in sections through the branch steel cables 16. However, the overall traction process is still that the high-strength steel cable 8 bears the gravity change of the truss frame 10;

[0044] S5: In combination with S4, the high-strength steel cable 8 and the branch steel cable 16 are not fixedly connected to the truss frame 10, but the horseshoe-shaped slide 2 is used as the basic structure for connecting the truss frame 10. The horseshoe-shaped slide 2 can slide directionally in the horseshoe-shaped slide groove 14 inside each independent truss frame 10. The purpose is that when the truss frame 10 numbered i needs to be removed, the horseshoe-shaped slide 2 can slide from the horseshoe-shaped slide groove 14 in the truss frame 10 numbered i into the horseshoe-shaped slide groove 14 in the truss frame 10 numbered i-1, which is convenient for the removal operation of the truss frame 10 numbered i. In order to improve the connection stability between the horseshoe-shaped slide 2 and the truss frame 10, the horseshoe-shaped slide 2 can be "fixed" in the truss frame 10 with a latch-like structure;

[0045] S6: Combined with S3 to S5 above, the overall structure is a high-strength steel cable 8 as a key traction structure, and the multiple branch steel cables 16 therein also serve as a traction structure, and their key role is to independently pull the gravity changes of the truss frame 10 in different positions, but ultimately "aggregate" into the high-strength steel cable 8, and refer to Figure 2 It can be understood that the high-strength steel cable 8 will also pass through the rotating wheel group 7. Because the overall high-strength steel cable 8 is triangular in shape, the high-strength steel cable 8 will generate downward pressure on the rotating wheel group 7 during the process of retracting and releasing the wires, so that the pressure sensing assembly 9 can feedback the pressure generated on the rotating wheel group 7 in real time. The purpose is to indirectly feedback the gravity changes borne by the multiple truss frames 10, and cooperate with the linear movement of the truss frame 10 and the retracting and releasing action of the high-strength steel cable 8 by the transmission wheel group 6. Specifically, based on the pressure change of the pressure sensing assembly 9, the retracting and releasing action of the high-strength steel cable 8 and the movement process of the truss frame 10 are indirectly coordinated, so that the high-strength steel cable 8 remains completely straight and provides traction to the truss frame 10, thereby ensuring the stability of the position of the escape duct body 4 during movement.

[0046] In summary: the working principle of the tunnel invert trolley can be used as a related structure for building an escape pipe. Specifically, the directional movement of the truss frame is achieved based on the principle of gear meshing, so that the escape pipe is extended to the designated position and docked with the pipe. On this basis, a steel cable assembly is added according to the movement mode of the truss frame and the outer frame, and the high-strength steel cable is used as the key structure for connecting and traction of the truss frame. During the movement of the truss frame, the center of gravity position in the overall structure is indirectly changed by the retraction and extension action of the high-strength steel cable, and the movement process of the truss frame will not be interfered with. Its purpose is to ensure the docking position and docking stability of the escape pipe.

[0047] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tunnel invert safety trolley with a telescopic escape pipe structure, comprising a straight chassis component (1), a lifting component assembly (3), and an escape pipe body (4), characterized in that: The lifting component assembly (3) is installed at two end positions on the straight chassis assembly (1), and an outer frame (5) is installed at the upper end position of the lifting component assembly (3), and a truss frame (10) is provided in the outer frame (5); The escape duct body (4) is arranged inside the truss frame (10), a straight-moving gear plate (13) is installed at the center line position of the lower end of the truss frame (10), a second driving structure (15) corresponding to the straight-moving gear plate (13) is arranged at the lower side position of the outer frame (5), and a steel cable assembly corresponding to the truss frame (10) is installed on the outer frame (5).

2. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 1, characterized in that: The truss frames (10) are linearly and equidistantly arranged along the length direction of the outer frame (5), and the truss frames (10) at adjacent positions are fixed by bolts.

3. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 1, characterized in that: The second driving structure (15) is composed of a driving motor and a driving gear, and the driving gear is meshed with the straight gear plate (13).

4. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 1, characterized in that: The steel cable assembly comprises a first driving structure (12), a power wheel group (11), a transmission wheel group (6), a rotating wheel group (7) and a high-strength steel cable (8); the first driving structure (12) is mounted on the lower side of the outer frame (5); the power wheel group (11) is rotatably connected to the outer frame (5) via the first driving structure (12); a power steel cable (17) is installed between the power wheel group (11) and the transmission wheel group (6); the high-strength steel cable (8) is arranged between the transmission wheel group (6) and the rotating wheel group (7); and one end of the high-strength steel cable (8) corresponds to the truss frame (10).

5. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 4, characterized in that: The transmission wheel group (6) and the intermediate wheel group (7) are arranged at the upper side of the outer frame (5), the two ends of the power steel cable (17) are respectively arranged at the two ends of the transmission wheel group (6) and the intermediate wheel group (7), and the other end of the high-strength steel cable (8) is arranged at the middle end of the transmission wheel group (6).

6. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 5, characterized in that: The transmission wheel assembly (6) is rotatably connected to the outer frame (5), and a pressure sensing assembly (9) corresponding to the intermediate wheel assembly (7) is mounted on the outer frame (5). The intermediate wheel assembly (7) is arranged in a vertical direction and at a transmission end position of the pressure sensing assembly (9).

7. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 4, characterized in that: A branch steel cable (16) is installed at the other end of the high-strength steel cable (8), a shoe-shaped slide seat (2) corresponding to the truss frame (10) is installed at the end of each branch steel cable (16), and a shoe-shaped slide groove (14) corresponding to the shoe-shaped slide seat (2) is opened at the center line position of the upper end of the truss frame (10).

8. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 7, characterized in that: The upper end of the horseshoe-shaped slide groove (14) is open, and the horseshoe-shaped slide seat (2) is slidably connected in the horseshoe-shaped slide groove (14).

9. The tunnel invert safety trolley with a telescopic escape pipe structure according to claim 8, characterized in that: The branch steel cables (16) and the high-strength steel cables (8) away from the straight-moving chassis assembly (1) are not connected to the truss frame (10).

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