Flexible protection supporting device for tunnel engineering

Abstract

The utility model discloses a flexible protective support device for tunnel engineering, which belongs to the technical field of protective devices for tunnel engineering and comprises a square frame, a limiting groove is arranged in the square frame, a square shell is contacted with the inner side of the square frame, a steel rope net is slidably connected with the inner wall of the square shell, and a quick release mechanism is arranged on one surface, far away from the steel rope net, of the square shell. A positioning round rod is fixedly connected to the outer surface of the square shell, the outer surface of the positioning round rod makes contact with the inner wall of the limiting groove, a sliding rod and a third spring are fixedly connected to the inner wall of the square shell, the outer surface of the sliding rod is slidably connected with the interior of the steel rope net, and the end, close to the quick release mechanism, of the third spring is fixedly connected with one face of the steel rope net; according to the square shell and steel rope net dismounting and mounting device, through the arrangement of the quick dismounting mechanism, positioning T-shaped rods are limited through limiting rods, the two positioning T-shaped rods can be retracted into a storage groove through a single hand, and the purpose of quickly dismounting and mounting the square shell and the steel rope net conveniently in a time-saving and labor-saving mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering protection devices, in particular to a flexible protection support device for tunnel engineering. Background Art

[0002] With the acceleration of national infrastructure construction, the construction of transportation facilities has also made great progress. The construction of tunnels in highway and railway construction can greatly reduce driving distance, shorten operation time, and improve driving safety. At the same time, it can save ground land and play a role in protecting the environment. With the rapid development of tunnel engineering, some problems have also emerged in tunnel construction. In particular, with the continuous increase in tunnel burial depth, many hard rock tunnels pass through high-altitude stress areas. Rock bursts have occurred frequently in high-altitude stress areas. Rock bursts can cause rock peeling on the cave wall, and severe ejection can occur. In addition, rock bursts are difficult to predict, which poses a great safety hazard to construction personnel and machinery.

[0003] A flexible protective support device for tunnel engineering with publication number CN211819451U includes a first steel frame and a second steel frame, the right side of the first steel frame is movably connected to the left side of the second steel frame, both sides of the second steel frame are rotatably connected with a rotating shaft, the opposite ends of the two rotating shafts penetrate the second steel frame and the first steel frame in sequence and extend to one side of the second steel frame, the inner surface of the first steel frame and the inner surface of the second steel frame are movably connected with a connecting rod, a steel rope net is fixedly connected between the opposite sides of the two connecting rods, and through holes are provided on the front and rear sides of the first steel frame and the front and rear sides of the second steel frame.

[0004] The above device has the advantage that the supporting device is not easily deformed when a heavy object falls, and the above device has the advantage of easy assembly and disassembly when installing and disassembling the steel rope net. However, when the above device is used to quickly install the steel rope net, the four baffles must be put into the storage groove with both hands at the same time, and then the alignment operation is performed, and then both hands are released at the same time to insert the four baffles into the four through holes, thereby achieving the purpose of quickly installing the steel rope net. However, this operation is relatively cumbersome, time-consuming and labor-intensive, and there are certain shortcomings. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the operation is complicated, time-consuming and labor-intensive when quickly installing and disassembling the steel rope net, and proposes a flexible protective support device for tunnel engineering.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A flexible protective support device for tunnel engineering, comprising a square frame, a fixing plate fixedly connected to the right side of the square frame, a fixing sleeve fixedly connected to the left side of the square frame, a limiting groove arranged inside the square frame, a square shell in contact with the inner side of the square frame, a steel rope net slidably connected to the inner wall of the square shell, a quick release mechanism provided on a side of the square shell away from the steel rope net, a positioning round rod fixedly connected to the outer surface of the square shell, the outer surface of the positioning round rod contacts the inner wall of the limiting groove, a sliding rod and a third spring fixedly connected to the inner wall of the square shell, the outer surface of the sliding rod is slidably connected to the inside of the steel rope net, and the end of the third spring close to the quick release mechanism is fixedly connected to one side of the steel rope net.

[0008] Preferably, the quick-release mechanism comprises a rectangular tube fixedly connected to the outer surface of the square shell, a limiting through hole is provided inside the rectangular tube, a fixed block is fixedly connected inside the rectangular tube, a connecting round rod is slidably connected inside the fixed block, and the outer surface of the connecting round rod is slidably connected to the inside of the rectangular tube.

[0009] Preferably, the end of the connecting round rod away from the fixed block is fixedly connected to a positioning T-rod, the outer surface of the positioning T-rod is slidably connected to the interior of the rectangular tube, the outer surface of the positioning T-rod is slidably connected to the interior of the square frame, and the positioning T-rod is fixedly connected to a first spring on a side close to the connecting round rod.

[0010] Preferably, one end of the first spring away from the positioning T-rod is fixedly connected to the inside of the rectangular tube, and one end of the connecting round rod away from the positioning T-rod is fixedly connected to a gear round rod, the outer surface of the gear round rod is meshed with a gear, and the outer surface of the gear is meshed with the positioning T-rod.

[0011] Preferably, a rotating rod is fixedly connected inside the gear, the outer surface of the rotating rod is rotatably connected to the inside of the rectangular tube, one end of the rotating rod away from the gear is fixedly connected to a handle, and the bottom surface of the handle is fixedly connected to a limiting rod.

[0012] Preferably, the outer surface of the limit rod is slidably connected to the inner wall of the limit through hole, the bottom surface of the handle is fixedly connected to the limit sliding rod, the outer surface of the limit sliding rod is slidably connected to the inside of the rotating rod, the end of the limit sliding rod away from the handle is fixedly connected to a second spring, and the end of the second spring away from the limit sliding rod is fixedly connected to the inside of the rotating rod.

[0013] Compared with the prior art, the utility model provides a flexible protective support device for tunnel engineering, which has the following beneficial effects.

[0014] 1. The utility model sets a quick-release mechanism and uses a limit rod to limit the positioning T-bar. By using one hand, the two positioning T-bars can be put into the storage slot, so that the purpose of quick disassembly and installation of the side shell and the steel rope net is achieved in a convenient, time-saving and labor-saving manner.

[0015] 2. The utility model provides a third spring. When a rock falls on the steel rope net, the steel rope net is subjected to an impact force, which is transmitted to the third spring. The third spring utilizes elastic force to reduce a portion of the impact force, thereby achieving the purpose of protecting the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the connection between the steel rope net and the third spring of the utility model.

[0018] Figure 3 It is a schematic diagram of the connection between the rectangular tube and the square shell of the utility model.

[0019] Figure 4 For the utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the quick-release mechanism of the utility model.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the quick-release mechanism of the utility model.

[0022] In the figure:

[0023] 1. Square frame; 2. Fixed plate; 3. Fixed sleeve; 4. Limiting groove; 5. Square shell; 6. Steel rope net; 7. Quick release mechanism; 701. Rectangular tube; 702. Fixed block; 703. Connecting round rod; 704. Gear round rod; 705. First spring; 706. Positioning T-bar; 707. Gear; 708. Rotating rod; 709. Handle; 710. Limiting through hole; 711. Limiting rod; 712. Second spring; 713. Limiting sliding rod; 8. Positioning round rod; 9. Sliding rod; 10. Third spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-6A flexible protective support device for tunnel engineering comprises a square frame 1, a fixing plate 2 is fixedly connected to the right side of the square frame 1, a fixing sleeve 3 is fixedly connected to the left side of the square frame 1, a limiting groove 4 is arranged inside the square frame 1, a square shell 5 is in contact with the inner side of the square frame 1, a steel rope net 6 is slidably connected to the inner wall of the square shell 5, a quick release mechanism 7 is arranged on the side of the square shell 5 away from the steel rope net 6, a positioning round rod 8 is fixedly connected to the outer surface of the square shell 5, the outer surface of the positioning round rod 8 is in contact with the inner wall of the limiting groove 4, a sliding rod 9 and a third spring 10 are fixedly connected to the inner wall of the square shell 5, the outer surface of the sliding rod 9 is slidably connected to the inside of the steel rope net 6, and one end of the third spring 10 close to the quick release mechanism 7 is fixedly connected to one side of the steel rope net 6.

[0026] The quick-release mechanism 7 includes a rectangular tube 701 fixedly connected to the outer surface of the square shell 5, a limiting through hole 710 is provided inside the rectangular tube 701, a fixed block 702 is fixedly connected inside the rectangular tube 701, a connecting round rod 703 is slidably connected inside the fixed block 702, and the outer surface of the connecting round rod 703 is slidably connected to the inside of the rectangular tube 701.

[0027] One end of the connecting round rod 703 away from the fixed block 702 is fixedly connected to a positioning T-rod 706, the outer surface of the positioning T-rod 706 is slidably connected to the inside of the rectangular tube 701, the outer surface of the positioning T-rod 706 is slidably connected to the inside of the square frame 1, and the first spring 705 is fixedly connected to one side of the positioning T-rod 706 close to the connecting round rod 703.

[0028] One end of the first spring 705 away from the positioning T-bar 706 is fixedly connected to the inside of the rectangular tube 701, and one end of the connecting round rod 703 away from the positioning T-bar 706 is fixedly connected to the gear round rod 704, the outer surface of the gear round rod 704 is meshed with a gear 707, and the outer surface of the gear 707 is meshed with the positioning T-bar 706.

[0029] A rotating rod 708 is fixedly connected inside the gear 707, and the outer surface of the rotating rod 708 is rotatably connected to the inside of the rectangular tube 701. A handle 709 is fixedly connected to the end of the rotating rod 708 away from the gear 707, and a limit rod 711 is fixedly connected to the bottom surface of the handle 709.

[0030] The outer surface of the limiting rod 711 is slidably connected to the inner wall of the limiting through hole 710, the bottom surface of the handle 709 is fixedly connected to the limiting sliding rod 713, the outer surface of the limiting sliding rod 713 is slidably connected to the inside of the rotating rod 708, the end of the limiting sliding rod 713 away from the handle 709 is fixedly connected to the second spring 712, and the end of the second spring 712 away from the limiting sliding rod 713 is fixedly connected to the inside of the rotating rod 708.

[0031] There are two limit grooves 4, both of which are opened inside the square frame 1 and are symmetrical. There are two positioning round rods 8, both of which are set on the outer surface of the positioning round rods 8 and are symmetrical. There is a positioning round rod 8 in contact with the inside of each limit groove 4. The positioning round rods 8 and the limit grooves 4 can quickly limit the square shell 5 on the inner side of the square frame 1. A group of sliding rods 9 and a third spring 10 are both provided, both of which are set inside the square shell 5. The specific number of a group of sliding rods 9 is set to twelve, and the specific number of a group of third springs 10 is set to twelve. There are two rectangular tubes 701, both of which are set on the outer surface of the square shell 5 and are symmetrical. Each rectangular tube 701 is provided with two fixed blocks 702, a connecting round rod 703, a first spring 705, and a positioning T-rod 706. Each rectangular tube 701 is provided with a gear round rod 704, a positioning T-rod 706, a gear 707, a rotating rod 708, a handle 709, a second spring 712, and a limiting sliding rod 713. There are two groups of limiting rods 711. A group of limiting rods 711 is provided on the bottom surface of each handle 709, and the specific number of each group of limiting rods 711 is two. Each rectangular tube 701 is provided with a group of limiting through holes 710, and the specific number of each group of limiting through holes 710 is twenty.

[0032] Two fixing plates 2 and two fixing sleeves 3 are provided, two fixing plates 2 are provided on the right side of the square frame 1, and two fixing sleeves 3 are provided on the left side of the square frame 1. The size of the fixing plate 2 is adapted to the fixing sleeve 3. By inserting the fixing plate 2 into the fixing sleeve 3, splicing can be performed, so that the length of the device can be lengthened to better adapt to the environment. The through holes opened inside the fixing plate 2 are adapted to the through holes opened inside the fixing sleeve 3. By inserting external screws into the through holes and then screwing the external screws on the external accessories, the fixing plate 2 and the fixing sleeve 3 can be clamped to achieve splicing and fixation of the device.

[0033] When the rock falls on the steel rope net 6, the steel rope net 6 is subjected to impact force, which is transmitted to the third spring 10. The third spring 10 utilizes elastic force to reduce a part of the impact force, thereby achieving the purpose of protecting the device.

[0034] Four positioning holes are provided inside the square frame 1 , and the sizes of the positioning holes are adapted to the positioning T-bars 706 .

[0035] The diameter of the gear round rod 704 is consistent with that of the connecting round rod 703 .

[0036] By pulling the handle 709 upward, the limiting rod 711 is disengaged from the limiting through hole 710, and then the handle 709 is rotated counterclockwise, the handle 709 drives the limiting rod 711, the limiting sliding rod 713, the rotating rod 708, and the gear 707 to rotate counterclockwise synchronously, and the gear 707 synchronously drives the gear round rod 704 and the positioning T-bar 706 to move away from the positioning hole, and the gear round rod 704 synchronously drives the connecting round rod 703 and the positioning T-bar 706 to move away from the positioning hole. At the same time, the positioning T-rod 706 synchronously drives the other connecting round rod 703 and the positioning T-rod 706 to move away from the positioning hole until the two positioning T-rods 706 are completely separated from the positioning hole, and then the two limiting rods 711 are inserted into the limiting through holes 710 to limit the positioning T-rod 706, so that the two positioning T-rods 706 can be put into the storage slot with one hand, thereby achieving the purpose of convenient, time-saving and labor-saving quick disassembly and installation of the side shell 5 and the steel rope net 6.

[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 flexible protective support device for tunnel engineering, comprising a square frame (1), characterized in that: The right side of the square frame (1) is fixedly connected to a fixing plate (2), the left side of the square frame (1) is fixedly connected to a fixing sleeve (3), a limiting groove (4) is provided inside the square frame (1), the inner side of the square frame (1) is in contact with a square shell (5), the inner wall of the square shell (5) is slidably connected to a steel rope net (6), a side of the square shell (5) away from the steel rope net (6) is provided with a quick release mechanism (7), the outer surface of the square shell (5) is fixedly connected to a positioning round rod (8), the outer surface of the positioning round rod (8) is in contact with the inner wall of the limiting groove (4), the inner wall of the square shell (5) is fixedly connected to a sliding rod (9) and a third spring (10), the outer surface of the sliding rod (9) is slidably connected to the inside of the steel rope net (6), and one end of the third spring (10) close to the quick release mechanism (7) is fixedly connected to one side of the steel rope net (6).

2. A flexible protective support device for tunnel engineering according to claim 1, characterized in that: The quick-release mechanism (7) comprises a rectangular tube (701) fixedly connected to the outer surface of the square shell (5), a limiting through hole (710) is provided inside the rectangular tube (701), a fixing block (702) is fixedly connected inside the rectangular tube (701), a connecting round rod (703) is slidably connected inside the fixing block (702), and the outer surface of the connecting round rod (703) is slidably connected to the inside of the rectangular tube (701).

3. A flexible protective support device for tunnel engineering according to claim 2, characterized in that: One end of the connecting round rod (703) away from the fixed block (702) is fixedly connected to a positioning T-rod (706); the outer surface of the positioning T-rod (706) is slidably connected to the inside of the rectangular tube (701); the outer surface of the positioning T-rod (706) is slidably connected to the inside of the square frame (1); and the first spring (705) is fixedly connected to a surface of the positioning T-rod (706) close to the connecting round rod (703).

4. A flexible protective support device for tunnel engineering according to claim 3, characterized in that: One end of the first spring (705) away from the positioning T-bar (706) is fixedly connected to the inside of the rectangular tube (701); one end of the connecting round rod (703) away from the positioning T-bar (706) is fixedly connected to a gear round rod (704); the outer surface of the gear round rod (704) is meshed with a gear (707); and the outer surface of the gear (707) is meshed with the positioning T-bar (706).

5. A flexible protective support device for tunnel engineering according to claim 4, characterized in that: The gear (707) is fixedly connected to a rotating rod (708) inside, the outer surface of the rotating rod (708) is rotatably connected to the inside of the rectangular tube (701), the end of the rotating rod (708) away from the gear (707) is fixedly connected to a handle (709), and the bottom surface of the handle (709) is fixedly connected to a limiting rod (711); the outer surface of the limiting rod (711) is slidably connected to the inner wall of the limiting through hole (710), the bottom surface of the handle (709) is fixedly connected to a limiting sliding rod (713), the outer surface of the limiting sliding rod (713) is slidably connected to the inside of the rotating rod (708), the end of the limiting sliding rod (713) away from the handle (709) is fixedly connected to a second spring (712), and the end of the second spring (712) away from the limiting sliding rod (713) is fixedly connected to the inside of the rotating rod (708).

Images