Connection channel heading machine with escape channel

Abstract

The utility model discloses a connecting channel heading machine with an escape channel, relates to the technical field of connecting channel heading machines, and solves the problem that the connecting channel heading machine in the prior art is not provided with a safety channel for escape. The device comprises a main machine unit, a pushing unit and a rear matching unit which are arranged in a starting tunnel, and further comprises a receiving trolley arranged in a receiving tunnel, the pushing unit comprises a pushing oil cylinder support arranged on the rear matching unit in a sliding mode, a pushing oil cylinder is fixedly arranged on the pushing oil cylinder support, the pushing oil cylinder is matched with the main machine unit, and the receiving trolley is arranged in the receiving tunnel. A ladder stand assembly and a rear matching unit are arranged on the pushing oil cylinder support, and a foldable platform is arranged on the receiving trolley; the ladder stand assembly and the foldable platform form a channel. In an emergency, the crawling ladder assembly arranged on the pushing oil cylinder support and the foldable platform arranged on the rear matching unit can serve as an escape channel to deal with the emergency, and people can be rapidly transferred and withdrawn.

Description

Technical Field

[0001] The utility model relates to the technical field of communication channel boring machines, in particular to a communication channel boring machine with an escape channel. Background Art

[0002] In recent years, with the widespread application of mechanized construction equipment in communication channels, shield method and pipe jacking method have been used as the main construction methods for the construction of communication channels between two tunnels, which not only greatly improves the construction efficiency, but also reduces the impact on the lives of surrounding residents. However, mechanized equipment also has certain disadvantages when digging communication channels. Due to the small space of the starting tunnel and the receiving tunnel used for the equipment to start and receive, after the mechanized equipment and its supporting facilities are transported into the starting tunnel, it is very inconvenient for personnel to move in the starting tunnel, especially during the equipment jacking process. Construction personnel can only pass through the starting tunnel section corresponding to the main unit after the main unit has been jacked a certain distance. Once an uncontrollable emergency occurs in the tunnel, the construction personnel cannot escape quickly due to the narrow space, and even delay the golden time for rescue personnel to enter. Therefore, it is necessary to design a new communication channel boring machine with an escape channel.

[0003] The Chinese invention patent with publication number CN115163102A discloses a communication channel excavation equipment and a construction method thereof, which is used to excavate the communication channel between the main tunnel on the originating side and the main tunnel on the receiving side, and includes: an excavation main machine, including a shield, a cutter head arranged at the front end of the shield, and a cutter head driving element arranged in the shield body for driving the cutter head; and a driving mechanism, which is configured to connect with the tunnel wall of the main tunnel on the originating side adjacent to the communication channel side, and apply a driving force to make the excavation main machine excavate toward the main tunnel on the receiving side. The excavation equipment lacks a safety channel, and cannot provide workers with escape in an emergency, which poses certain safety hazards. Utility Model Content

[0004] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a communication channel boring machine with an escape passage, which solves the problem that the communication channel boring machine in the prior art does not have a safety passage for escape.

[0005] The technical solution of the utility model is achieved as follows: a communication channel tunnel boring machine with an escape passage, including a main unit, a jacking unit, and a rear supporting unit arranged in a starting tunnel, and also including a receiving trolley arranged in a receiving tunnel, the jacking unit includes a jacking cylinder bracket slidably arranged on the rear supporting unit, a jacking cylinder is fixedly arranged on the jacking cylinder bracket, the jacking cylinder cooperates with the main unit, a ladder assembly is arranged on the jacking cylinder bracket, and a foldable platform is arranged on the rear supporting unit and the receiving trolley; the ladder assembly and the foldable platform form a passage.

[0006] Preferably, the rear supporting unit includes trailer No. 1, trailer No. 2, starting trolley, and trailer No. 4 which are connected in sequence, and a bracket slide rail is fixedly arranged horizontally on the starting trolley, and the push cylinder bracket is slidably arranged on the bracket slide rail.

[0007] Preferably, the foldable platform comprises a frame respectively hinged to the side walls of trailer No. 1, trailer No. 2, trailer No. 4 and the receiving trolley, and a seam-blocking plate is hinged to the frame.

[0008] Preferably, the ladder assembly includes ladders arranged on both sides of the pushing cylinder bracket, the lower ends of the ladders on both sides correspond to the platforms on trailer No. 2 and trailer No. 4 respectively, and a foldable walkway connecting the upper ends of the ladders on both sides is arranged on the top of the pushing cylinder bracket.

[0009] Preferably, the foldable walkway comprises two horizontal parts which are symmetrically arranged and respectively correspond to the ladders on both sides, and each of the horizontal parts is hingedly connected with a folding part, and the two folding parts are overlapped and matched.

[0010] Preferably, a backrest that cooperates with the push cylinder is provided on the inner wall of the originating tunnel away from the receiving tunnel. Further, the telescopic direction of the push cylinder is parallel to the support rail, and the telescopic end of the push cylinder cooperates with the main unit and can push the main unit to move when extended.

[0011] The beneficial effects of the utility model are as follows: in an emergency, the ladder assembly arranged on the top push cylinder bracket and the foldable platform arranged on the rear supporting unit can be used as an escape passage to deal with emergencies and realize rapid transfer and retreat of personnel. In addition, regardless of the equipment construction or shutdown process, construction personnel can retreat and evacuate through the escape passage at any time, and the escape passage is also convenient for maintenance personnel to inspect and repair the equipment, greatly improving the safety of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the receiving trolley of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the push unit of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the ladder assembly of the utility model;

[0017] Figure 5 This is a schematic diagram of the foldable platform structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the state in which the length of the receiving sleeve is shortened according to the utility model;

[0019] In the figure: 1: starting tunnel, 2: receiving tunnel, 3, receiving trolley, 4: pushing cylinder bracket, 5: pushing cylinder, 7: trailer No. 1, 8: trailer No. 2, 9: starting trolley, 10: trailer No. 4, 11: bracket slide rail, 12: gantry, 13: seam blocking board, 14: ladder, 16: horizontal part, 17: folding part, 18: backrest, 21: starting sleeve, 22: receiving sleeve, 31: high-voltage connection cabinet, 32: high-voltage switch, 33: transformer, 34: frequency converter, 35: air compressor, 36: main control room, 37: hydraulic pump station, 38: bentonite tank, 39: pulping machine, 42: receiving adjustment bracket, 43: hydraulic pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] like Figure 1 , 2 As shown in 3, embodiment 1, a communication channel boring machine with an escape passage, includes a main unit, a pushing unit, and a rear supporting unit arranged in a starting tunnel 1, and also includes a receiving trolley 3 arranged in a receiving tunnel 2, the pushing unit includes a pushing cylinder bracket 4 which is slidably arranged on the rear supporting unit and cooperates with the main unit, and a pushing cylinder 5 is fixedly arranged on the pushing cylinder bracket 4.

[0022] The push cylinder bracket 4 is provided with a ladder assembly, and the rear supporting unit and the receiving trolley 3 are provided with a foldable platform. Figure 6As shown, in this embodiment, the rear supporting unit includes trailer No. 1 7, trailer No. 2 8, starting trolley 9, and trailer No. 4 10 which are connected in sequence, wherein a bracket slide rail 11 is fixedly arranged transversely on the starting trolley 9, and the jacking cylinder bracket 4 is slidably arranged on the bracket slide rail 11. In this embodiment, the bracket slide rail is arranged transversely relative to the travel direction of the starting trolley in the starting tunnel, so that the jacking cylinder bracket can be moved to the side wall of the starting tunnel during construction. In addition, the foldable platform includes a stand 12 which is respectively hinged to the side walls of trailer No. 1 7, trailer No. 2 8, trailer No. 4 10, and the receiving trolley. When there is no need to pass or when the receiving trolley moves in the starting tunnel, the stand 12 is folded up to avoid affecting normal construction and movement. In an emergency, the platform 12 is lowered, and the ladder assembly set on the top push cylinder bracket and the platform of the foldable platform set on the rear supporting unit can be used as a channel in the starting tunnel to deal with emergencies, and the foldable platform on the receiving trolley can be used as a channel in the receiving tunnel for escape, so as to achieve rapid transfer and retreat of personnel. In addition, regardless of any process of equipment construction or shutdown, construction personnel can retreat and evacuate through the escape channel at any time, and the escape channel also facilitates maintenance personnel to inspect and repair equipment, greatly improving the safety of tunnel construction.

[0023] As a further optional solution, a seam-blocking plate 13 is hinged at the outer edge of the platform 12. The seam-blocking plate is unfolded after the platform 12 is unfolded, and is spread in the gap between the edge of the platform 12 and the side wall of the originating tunnel or the receiving tunnel, so as to improve the safety of workers walking on the platform.

[0024] In addition, trailer No. 1 7 is equipped with a high-voltage connection cabinet 31, a high-voltage switch cabinet 32, a transformer 33 and a frequency converter 34, trailer No. 2 8 is equipped with an air compressor 35, a main control room 36, and a hydraulic pump station 37, and the starting trolley 9 is equipped with a starting adjustment bracket in conventional construction, which is used to adjust the posture of the main unit before excavation. Trailer No. 4 10 is equipped with a bentonite tank 38, a pulping machine 39, a grease pump and a crane, and the receiving trolley 3 is equipped with a receiving adjustment bracket 42 and a hydraulic pump station 43. During the departure and reception, the relevant components on the above-mentioned rear supporting units cooperate to achieve auxiliary excavation work.

[0025] Embodiment 2, as Figure 4As shown, on the basis of Example 1, the ladder assembly includes ladders 14 arranged on both sides of the push cylinder bracket 4, the lower ends of the ladders 14 on both sides correspond to the gantry 12 on the second trailer 8 and the fourth trailer 10 respectively, and a foldable platform connecting the upper ends of the ladders 14 on both sides is arranged on the top of the push cylinder bracket 4. The gantry 12, the ladder, and the foldable platform together form an escape passage. Thus, the construction personnel can walk to the ladder through the gantry 12, and walk to the ladder on the other side by climbing the ladder and the foldable platform, and walk to the other gantry 12 through the ladder on the other side, so as to realize the crossing process of the starting trolley.

[0026] Specifically, Figure 5 As shown, the foldable platform includes two horizontal parts 16 that are symmetrically arranged and correspond to the ladders 14 on both sides, and the horizontal parts 16 are hingedly connected with folding parts 17, and the two folding parts 17 overlap each other. When there is no need to pass, the two folding parts are folded up to reduce space occupation and avoid affecting the excavation construction of the main unit. In this embodiment, the two folding parts 17 and the two horizontal parts are symmetrical relative to the center line of the communication channel, and the ends of the two folding parts overlap to connect the two parallel parts.

[0027] At the same time, in this embodiment, it also includes an originating receiving unit, which includes a originating sleeve 21 and a receiving sleeve 22 fixedly arranged above the prefabricated pipe segments of the originating tunnel and the receiving tunnel, and the originating sleeve and the receiving sleeve correspond to the two ends of the communication channel respectively.

[0028] As a further optional embodiment, Figure 6 As shown, the length of the receiving sleeve or the starting sleeve along the excavation direction is reduced, the space occupied in the tunnel width direction is reduced, and space for personnel escape is provided, thereby achieving rapid evacuation of personnel in an emergency.

[0029] Embodiment 3, on the basis of embodiment 2, a backrest 18 cooperating with the jacking cylinder 5 is provided on the inner wall of the starting tunnel 1 away from the receiving tunnel 2. The telescopic direction of the jacking cylinder 5 is parallel to the support rail 11, and the telescopic end of the jacking cylinder 5 cooperates with the main unit and can push the main unit to move when extended. The backrest 18 can provide a stable support foundation and support plane for the jacking of the jacking cylinder, so as to prevent the reaction force during the jacking excavation process of the main unit from causing the jacking cylinder to damage the side wall of the prefabricated segment of the starting tunnel.

[0030] The specific method of using the above embodiment includes the following steps:

[0031] S1: Equipment installation stage before departure; fix the departure sleeve 21 on the prefabricated pipe segment in the departure tunnel 1 to complete the assembly of the main unit. After the assembly is completed, transport the main unit to the departure sleeve 21, install the jacking cylinder bracket 4 and the jacking cylinder on the bracket slide rail 11, and fix the backrest 18 on the side wall of the departure tunnel on the other side of the departure tunnel 1 corresponding to the position of the main unit to be pushed in. After that, each trailer of the supporting unit 4 enters the site, slide the jacking cylinder bracket so that the rear end of the jacking cylinder on it contacts the backrest, so that the backrest can support the jacking cylinder;

[0032] S2: Equipment debugging stage: connect the equipment pipelines, test the extension and retraction of each component in the main unit 1 and the push cylinder 5 in the push unit 3, and complete the debugging after it is correct;

[0033] S3: Equipment excavation stage; the telescopic end of the jacking cylinder 5 extends to the main unit, and the main unit excavates the communication channel. When the distance of the jacking cylinder meets the distance for pipe segment assembly, the telescopic end of the jacking cylinder retracts to assemble the pipe segment. During the excavation, the construction personnel can pass through the foldable platform to the jacking cylinder bracket 4 at any time, climb up the ladder 14, open the foldable platform, and move to the other side of the main unit in the starting tunnel.

[0034] S4: Equipment receiving stage. When the equipment is excavated close to the receiving end, the receiving sleeve 22 is fixed on the prefabricated pipe segment of the receiving tunnel. After the equipment breaks the prefabricated pipe segment of the receiving end, the main unit is pushed into the receiving sleeve 22, the main unit is removed, and the main unit is transported out along the receiving tunnel 2 using the receiving trolley 3. During the receiving process, when an emergency occurs, the gantry on the receiving trolley can be lowered for emergency escape;

[0035] S5: The end of excavation; the receiving sleeve is removed to form a communication channel between the starting tunnel and the receiving tunnel, and the starting tunnel, the receiving tunnel and the communication channel are cleaned;

[0036] S6: After the equipment is removed from the site, it is reassembled and moved to the next communication channel location to continue construction.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tunnel boring machine with an escape passage, comprising a main unit, a jacking unit, and a rear supporting unit arranged in a starting tunnel (1), and also comprising a receiving trolley (3) arranged in a receiving tunnel (2), characterized in that: The pushing unit comprises a pushing cylinder bracket (4) slidably arranged on the rear supporting unit, a pushing cylinder (5) is fixedly arranged on the pushing cylinder bracket (4), the pushing cylinder (5) cooperates with the main unit, a ladder assembly is arranged on the pushing cylinder bracket (4), and a foldable platform is arranged on the rear supporting unit and the receiving trolley (3); the ladder assembly and the foldable platform form a passage.

2. The tunnel boring machine with an escape passage according to claim 1, characterized in that: The rear supporting unit comprises a No. 1 trailer (7), a No. 2 trailer (8), a starting trolley (9), and a No. 4 trailer (10) which are sequentially connected and arranged. A bracket slide rail (11) is transversely fixed on the starting trolley (9), and a push cylinder bracket (4) is slidably arranged on the bracket slide rail (11).

3. The tunnel boring machine with an escape passage according to claim 2, characterized in that: The foldable platform comprises a stand (12) which is respectively hinged to the side walls of trailer No. 1 (7), trailer No. 2 (8), trailer No. 4 (10) and the receiving trolley (3).

4. The tunnel boring machine with an escape passage according to claim 3, characterized in that: A seam-blocking plate (13) is hingedly connected to the platform (12).

5. The communication tunnel boring machine with an escape passage according to claim 3 or 4, characterized in that: The ladder assembly comprises ladders (14) arranged on both sides of the push cylinder bracket (4), the lower ends of the ladders (14) on both sides respectively corresponding to the stands (12) on the second trailer (8) and the fourth trailer (10), and a foldable walkway communicating with the upper ends of the ladders (14) on both sides is arranged on the top of the push cylinder bracket (4).

6. The tunnel boring machine with an escape passage according to claim 5, characterized in that: The foldable walkway comprises two horizontal parts (16) which are symmetrically arranged and respectively correspond to the ladders (14) on both sides, and each of the horizontal parts (16) is hingedly connected to a folding part (17), and the two folding parts (17) are overlapped and matched.

7. The tunnel boring machine with an escape passage according to any one of claims 1 to 4 and 6, characterized in that: A backrest (18) cooperating with the jacking cylinder (5) is provided on the inner wall of the originating tunnel (1) on the side away from the receiving tunnel (2).

8. The tunnel boring machine with an escape passage according to claim 7, characterized in that: The telescopic direction of the push cylinder (5) is parallel to the bracket slide rail (11); the telescopic end of the push cylinder (5) cooperates with the main unit and can push the main unit to move when extended.

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