A disassembled and reusable foundation pit support equipment for municipal tunnels

Abstract

The present invention relates to a foundation pit support device, and in particular to a disassembled and reusable foundation pit support device for municipal tunnels. The present invention provides a disassembled and reusable foundation pit support device for municipal tunnels, which can realize automatic support inside the tunnel, discharge groundwater and collect stones in a centralized manner. A disassembled and reusable foundation pit support device for municipal tunnels, comprising: a base, a support platform, a first contact switch, a first guide sleeve and a support frame, etc.; a support platform is provided on the base, a first contact switch is provided at the lower part of the support platform, first guide sleeves are provided on both sides of the middle part of the base, and a support frame is slidably connected between the two first guide sleeves. In the present invention, after the anti-slip spikes move downward to contact the ground, the anti-slip spikes are inserted into the ground, and the anti-slip spikes fix the base, thereby preventing the base from tipping over, thereby achieving the effect of the anti-slip spikes fixing the base.

Description

Technical Field

[0001] The invention relates to foundation pit supporting equipment, in particular to disassembled and reused foundation pit supporting equipment for municipal tunnels. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Foundation pit support plays a significant role in preventing foundation pit collapse. However, traditional foundation pit support lacks special fixing devices when in use. Although it can play a certain supporting role for the foundation pit, the protective effect is limited and it cannot prevent the occurrence of collapse. Once a collapse accident occurs, the traditional support scheme cannot effectively prevent it, and the groundwater in the tunnel needs to be manually guided by the staff to prevent the groundwater from damaging the internal structure of the tunnel. The stones inside the tunnel are scattered and chaotic, and the staff need to collect the stones and process them in a centralized manner, which increases the workload of the staff.

[0003] To this end, we designed a disassembled and reusable foundation pit support equipment for municipal tunnels that can automatically support the interior of the tunnel, discharge groundwater, and centrally collect stones. Summary of the Invention

[0004] In order to overcome the shortcomings of traditional foundation pit support equipment that cannot automatically support the interior of the tunnel, cannot discharge groundwater and cannot collect stones in a centralized manner, the present invention provides a disassembled and reusable foundation pit support equipment for municipal tunnels that can automatically support the interior of the tunnel, discharge groundwater and collect stones in a centralized manner.

[0005] The present invention is achieved in this way. A disassembled and reusable foundation pit support device for municipal tunnels includes: a base, a support platform, a first contact switch, a first guide sleeve, a support frame, a slider, a guide groove, a support rod, a first limit block, a first support frame, a moving wheel, a buffer mechanism, an anti-slip mechanism, a support mechanism and a fixing mechanism. The base is provided with a support platform, a first contact switch is provided at the lower part of the support platform, first guide sleeves are provided on both sides of the middle part of the base, a support frame is slidably connected between the two first guide sleeves, two guide grooves are provided on both sides of the middle part of the base, the guide groove is connected to the first guide sleeve, sliders are slidably provided on the inner sides of the four guide grooves, support rods are rotatably provided on the upper parts of the four sliders, two first support frames are provided on both sides of the base, the first support frame is connected to the guide groove, first limit blocks are provided on the upper parts of the four first support frames, the first limit blocks are slidably connected to the support rod, two moving wheels are rotatably provided on both sides of the base, a buffer mechanism is provided on the upper side of the support frame, an anti-slip mechanism is provided on the base, a support mechanism is provided on the base, and a fixing mechanism is provided between the two first guide sleeves.

[0006] In a preferred embodiment of the present invention, the buffer mechanism includes: a plurality of first telescopic rods are provided on the top of the support frame, the top ends of the plurality of first telescopic rods on the same longitudinal side are connected to a fixed plate, a first telescopic spring is wound around the plurality of first telescopic rods, the two ends of the first telescopic spring are respectively connected to the support frame and the fixed plate, and a support plate for fixing the tunnel wall is connected between the tops of the plurality of fixed plates.

[0007] In a preferred embodiment of the present invention, the anti-slip mechanism includes: second support frames are provided on both sides of the middle part of the base, first electric push rods are installed on the upper parts of the two second support frames, the bottom ends of the telescopic rods of the two first electric push rods are connected to first connecting plates, multiple anti-slip spikes for inserting into the tunnel ground are provided on both sides of the bottom of the two first connecting plates, and a first distance sensor is provided on the upper part of the second support frame on one side.

[0008] In a preferred embodiment of the present invention, the support mechanism includes: bearing seats are provided on both sides of the middle part of the base, a dual-axis reduction motor is installed in the middle of the base, screw rods are connected on both sides of the output shaft of the dual-axis reduction motor, the screw rods are connected to the bearing seats, and second connecting plates are threaded on both sides of the screw rods. The two sides of the second connecting plate are respectively connected to the slider on the same side, a digital Hall sensor is provided on one side of the slider, and a strong magnet is provided on one side of the guide groove.

[0009] In a preferred embodiment of the present invention, the fixing mechanism includes: a third support frame is provided in the middle of the bottom of the support frame, multiple second telescopic rods are provided on both sides of the third support frame, and second limit blocks are connected between the multiple second telescopic rods on the same side laterally, and a second spring is wound around the multiple second telescopic rods, and the two ends of the second spring are respectively connected to the third support frame and the second limit block, a second electric push rod is installed in the middle of the top of the third support frame, the telescopic rod of the second electric push rod is connected to the second limit block on one side, a third electric push rod is installed in the middle of the bottom of the third support frame, the telescopic rod of the third electric push rod is connected to the second limit block on one side, second guide sleeves are provided on both sides of the middle of the third support frame, the second guide sleeve is slidably connected to the second limit block, and a second distance sensor is provided in the middle of the upper part of the first guide sleeve on one side.

[0010] In a preferred embodiment of the present invention, an anti-blocking mechanism is also included, which includes: drainage grooves for storing groundwater are provided on both sides of the lower part of the support frame, sieve plates for collecting stones are slidingly provided in the middle of the inner walls of the two drainage grooves, and guide pipes are connected between the two drainage grooves and the base. Multiple third telescopic rods are provided on the inner walls of the two drainage grooves, and the third telescopic rods are connected to the sieve plates. Third springs are wound around the multiple third telescopic rods, and the two ends of the third springs are respectively connected to the drainage grooves and the sieve plates.

[0011] In a preferred embodiment of the present invention, it also includes a block removal mechanism, which includes: a second contact switch is provided in the middle of the lower part of the support platform, a first indicator light is provided at the lower part of the support platform, a second indicator light is provided at the lower part of the support platform, third guide sleeves are provided on both sides of the top of the third support frame, and top blocks are slidably provided on the two third guide sleeves, and the top blocks are slidably connected to the drainage trough, a fourth electric push rod is installed on the top of the third support frame, the telescopic rod of the fourth electric push rod is connected to the top block on one side, and a first pressure sensor is provided in the middle of the inner wall of the drainage trough on one side, a fifth electric push rod is installed on the top of the third support frame, the telescopic rod of the fifth electric push rod is connected to the top block on one side, and a second pressure sensor is provided in the middle of the inner wall of the drainage trough on one side.

[0012] In a preferred embodiment of the present invention, it also includes a control box. The control box is installed on the upper part of the support platform. The control box is installed with a switching power supply, a control module and a power module. The switching power supply is used to power the disassembled and reusable foundation pit support equipment for municipal tunnels. The output end of the switching power supply is electrically connected to the power module. The power module is connected to a main power switch through a line, and the control module and the power module are electrically connected; the control module is connected to a DS1302 clock circuit and a 24C02 circuit; the first contact switch, the first distance sensor, the digital Hall sensor, the second distance sensor, the second contact switch, the first pressure sensor and the second pressure sensor are all electrically connected to the control module, the first electric push rod, the second electric push rod, the third electric push rod, the fourth electric push rod and the fifth electric push rod are all connected to the control module through the relay control module, the dual-axis reduction motor is connected to the control module through the DC motor forward and reverse module, and the first indicator light and the second indicator light are both electrically connected to the control module.

[0013] The present invention provides a disassembled and reusable foundation pit support device for municipal tunnels, which has the following beneficial effects:

[0014] 1. The present invention achieves the effect of fixing the base by moving the anti-slip spikes downward until they come into contact with the ground, so that the anti-slip spikes are inserted into the ground and fix the base, thereby preventing the base from tipping over.

[0015] 2. When the support plate moves upward and contacts the tunnel wall, the support frame continues to move upward, driving the first telescopic rod to retract, compressing the first telescopic spring, and fixing the support plate to the tunnel wall to prevent the loose soil in the tunnel wall from causing the tunnel to collapse, thus achieving the effect of fixing the tunnel wall with the support plate;

[0016] 3. The present invention uses a sieve plate to separate stones and groundwater, so that stones remain on the sieve plate, and groundwater passes through the sieve plate and falls into the drainage trough. The groundwater flows through the drainage trough and the diversion pipe and falls to the ground, thereby preventing stones from blocking the drainage trough and achieving the effect of stone screening by the sieve plate;

[0017] 4. When the top block on the left moves upward and contacts the sieve plate on the left, the sieve plate on the left is driven to move upward, so that the sieve plate on the left transports the stones upward. The user can clean the stones on the sieve plate on the left, thus achieving the effect of the sieve plate on the left transporting stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the first part of the present invention.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the second part of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the buffer mechanism of the present invention.

[0023] Figure 6 It is an enlarged view of point A of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the anti-slip mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the anti-slip mechanism of the present invention.

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the first part of the support mechanism of the present invention.

[0027] Figure 10 It is a schematic diagram of the three-dimensional structure of the second part of the support mechanism of the present invention.

[0028] Figure 11 It is a schematic diagram of the three-dimensional structure of the first part of the fixing mechanism of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the second part of the fixing mechanism of the present invention.

[0030] Figure 13 It is a schematic diagram of the three-dimensional structure of the third part of the fixing mechanism of the present invention.

[0031] Figure 14 It is a schematic diagram of the three-dimensional structure of the anti-blocking mechanism of the present invention.

[0032] Figure 15 It is an enlarged view of B of the present invention.

[0033] Figure 16 It is a schematic diagram of the three-dimensional structure of the first part of the block removal mechanism of the present invention.

[0034] Figure 17 It is an enlarged view of location C of the present invention.

[0035] Figure 18 It is a schematic diagram of the three-dimensional structure of the second part of the block removal mechanism of the present invention.

[0036] Figure 19 It is an enlarged view of D of the present invention.

[0037] Figure 20 1 is a circuit block diagram of the present invention.

[0038] Figure 21 Schematic diagram of the circuit of the present invention.

[0039] The markings of the components in the accompanying drawings are as follows: 1. Base, 2. Support table, 3. Control box, 31. First contact switch, 4. First guide sleeve, 5. Support frame, 6. Slider, 61. Guide groove, 7. Support rod, 8. First limit block, 9. First support frame, 91. Moving wheel, 10. Buffer mechanism, 101. Support plate, 102. First telescopic rod, 103. First telescopic spring, 104. Fixed plate, 11. Anti-slip mechanism, 111. Second support frame, 112. First electric push rod, 113. First connecting plate, 114. Anti-slip spikes, 115. First distance sensor, 12. Support mechanism, 121. Second connecting plate, 122. Bearing seat, 123. Screw, 124. Dual-axis reduction motor, 125. Digital Hall sensor Device, 126, strong magnet, 13, fixing mechanism, 131, third support frame, 132, second telescopic rod, 133, second spring, 134, second limit block, 135, second electric push rod, 136, second guide sleeve, 137, second distance sensor, 138, third electric push rod, 14, anti-blocking mechanism, 141, drainage trough, 142, sieve plate, 143, guide pipe, 144, third telescopic rod, 145, third spring, 15, block removal mechanism, 151, second contact switch, 152, first indicator light, 153, second indicator light, 154, third guide sleeve, 155, top block, 156, fourth electric push rod, 157, first pressure sensor, 158, fifth electric push rod, 159, second pressure sensor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] See also Figures 1-21The present invention provides a technical solution: a disassembled and reusable foundation pit support device for municipal tunnels, comprising a base 1, a support platform 2, a first contact switch 31, a first guide sleeve 4, a support frame 5, a slider 6, a guide groove 61, a support rod 7, a first limit block 8, a first support frame 9, a moving wheel 91, a buffer mechanism 10, an anti-slip mechanism 11, a support mechanism 12 and a fixing mechanism 13. The support platform 2 is welded to the left front side of the base 1, and the first contact switch 31 is installed on the lower front side of the support platform 2. The first guide sleeve 4 is welded to both sides of the front and rear of the middle part of the base 1. The support frame 5 is slidably connected between the tops of the two first guide sleeves 4. Two front and rear sides of the middle part of the base 1 are provided A guide groove 61 is connected to the first guide sleeve 4. Slide blocks 6 are slidably provided on the inner sides of the four guide grooves 61. Support rods 7 are rotatably provided on the upper parts of the four slide blocks 6. The support rods 7 cooperate with the support frame 5. Two first support frames 9 are welded on the left and right sides of the base 1. The first support frames 9 are connected to the guide groove 61. A first limit block 8 is provided on the upper parts of the four first support frames 9. The first limit block 8 is slidably connected to the support rod 7. Two moving wheels 91 are rotatably provided on the front and back sides of the base 1. A buffer mechanism 10 is provided on the upper side of the support frame 5, an anti-slip mechanism 11 is provided on the base 1, a support mechanism 12 is provided on the base 1, and a fixing mechanism 13 is provided between the two first guide sleeves 4.

[0042] The buffer mechanism 10 includes a support plate 101, a first telescopic rod 102, a first telescopic spring 103 and a fixed plate 104. A plurality of first telescopic rods 102 are provided on the top of the support frame 5. The tops of the plurality of first telescopic rods 102 on the same longitudinal side are connected to the fixed plate 104. The support plate 101 is connected between the tops of the plurality of fixed plates 104. The first telescopic spring 103 is wound around the plurality of first telescopic rods 102, and the two ends of the first telescopic spring 103 are respectively connected to the support frame 5 and the fixed plate 104.

[0043] The anti-slip mechanism 11 includes a second support frame 111, a first electric push rod 112, a first connecting plate 113, anti-slip spikes 114 and a first distance sensor 115. The second support frame 111 is welded on both sides of the front and rear of the upper middle part of the base 1. The first electric push rod 112 is fixed to the upper front part of the two second support frames 111 by bolts. The bottom ends of the telescopic rods of the two first electric push rods 112 are connected to the first connecting plate 113. Multiple anti-slip spikes 114 are welded on the left and right sides of the bottom of the two first connecting plates 113. The first distance sensor 115 is installed on the front side of the upper front part of the front second support frame 111.

[0044] The support mechanism 12 includes a second connecting plate 121, a bearing seat 122, a screw rod 123, a dual-axis reduction motor 124, a digital Hall sensor 125 and a strong magnet 126. The bearing seat 122 is welded on both sides of the left and right sides of the middle part of the base 1. The dual-axis reduction motor 124 is fixedly installed on the middle of the base 1 by bolts. The left and right sides of the output shaft of the dual-axis reduction motor 124 are connected with screw rods 123, which are connected to the bearing seat 122. The left and right sides of the screw rod 123 are threaded with a second connecting plate 121. The front and rear sides of the second connecting plate 121 are respectively connected to the slider 6 on the same side. The digital Hall sensor 125 is installed on the rear side of the left part of the slider 6 on the front left side, and a strong magnet 126 is provided on the guide groove 61 on the front left side.

[0045] The fixing mechanism 13 includes a third support frame 131, a second telescopic rod 132, a second spring 133, a second limit block 134, a second electric push rod 135, a second guide sleeve 136, a second distance sensor 137 and a third electric push rod 138. The third support frame 131 is welded to the middle of the bottom of the support frame 5. A plurality of second telescopic rods 132 are provided on both sides of the front and rear of the third support frame 131. A second limit block 134 is connected between the plurality of second telescopic rods 132 on the same side in the horizontal direction. The second limit block 134 cooperates with the support rod 7. A second spring 133 is wound around the plurality of second telescopic rods 132. The two ends of the second spring 133 are respectively connected to the third support frame 131. The support frame 131 is connected to the second limit block 134, and a second electric push rod 135 is fixedly installed in the middle of the top of the third support frame 131 by bolts. The telescopic rod of the second electric push rod 135 is connected to the second limit block 134 on the rear side, and a third electric push rod 138 is fixedly installed in the middle of the bottom of the third support frame 131 by bolts. The telescopic rod of the third electric push rod 138 is connected to the second limit block 134 on the front side. A second guide sleeve 136 is welded on both the front and rear sides of the middle part of the third support frame 131. The second guide sleeve 136 is slidably connected to the second limit block 134, and a second distance sensor 137 is installed in the middle of the upper front side of the first guide sleeve 4 on the rear side.

[0046] It also includes an anti-blocking mechanism 14, which includes a drainage groove 141, a sieve plate 142, a guide pipe 143, a third telescopic rod 144 and a third spring 145. Drainage grooves 141 are welded on both the left and right sides of the lower part of the support frame 5. A sieve plate 142 is slidingly provided in the middle of the inner wall of the two drainage grooves 141. A guide pipe 143 is connected between the two drainage grooves 141 and the base 1. A plurality of third telescopic rods 144 are provided on the inner walls of the two drainage grooves 141. The third telescopic rods 144 are connected to the sieve plate 142. A third spring 145 is wound around the plurality of third telescopic rods 144. The two ends of the third spring 145 are respectively connected to the drainage groove 141 and the sieve plate 142.

[0047] It also includes a block removal mechanism 15, which includes a second contact switch 151, a first indicator light 152, a second indicator light 153, a third guide sleeve 154, a top block 155, a fourth electric push rod 156, a first pressure sensor 157, a fifth electric push rod 158 and a second pressure sensor 159. The second contact switch 151 is installed in the middle of the lower front part of the support platform 2, the first indicator light 152 is installed on the left side of the lower front part of the support platform 2, and the second indicator light 153 is installed on the right side of the lower front part of the support platform 2. The third guide sleeves 154 are welded on both sides of the top of the third support frame 131, and the two third guide sleeves 154 are slidably provided with top blocks 155. Block 155 is slidingly connected to the drainage trough 141, the top block 155 cooperates with the sieve plate 142, and the fourth electric push rod 156 is fixedly installed on the right side of the top of the third support frame 131 by bolts, the telescopic rod of the fourth electric push rod 156 is connected to the top block 155 on the right, the fourth electric push rod 156 is located on the right side of the third guide sleeve 154 on the right, and a first pressure sensor 157 is installed in the middle of the inner wall of the drainage trough 141 on the right, and a fifth electric push rod 158 is fixedly installed on the left side of the top of the third support frame 131 by bolts, the telescopic rod of the fifth electric push rod 158 is connected to the top block 155 on the left, and a second pressure sensor 159 is installed in the middle of the inner wall of the drainage trough 141 on the left.

[0048] It also includes a control box 3, the upper front part of the support platform 2 is fixed with the control box 3 by bolts, the control box 3 is installed with a switching power supply, a control module and a power module, the switching power supply is used to power the disassembled and reused foundation pit support equipment for municipal tunnels, the output end of the switching power supply is electrically connected to the power module, the power module is connected to the main power switch through a line, and the control module and the power module are electrically connected; the control module is connected to a DS1302 clock circuit and a 24C02 circuit; a first contact switch 31, a first distance sensor 115, a digital Hall The sensor 125, the second distance sensor 137, the second contact switch 151, the first pressure sensor 157 and the second pressure sensor 159 are all electrically connected to the control module, the first electric push rod 112, the second electric push rod 135, the third electric push rod 138, the fourth electric push rod 156 and the fifth electric push rod 158 are all connected to the control module through the relay control module, the dual-axis reduction motor 124 is connected to the control module through the DC motor forward and reverse module, and the first indicator light 152 and the second indicator light 153 are both electrically connected to the control module.

[0049] The working principle of the present invention is that when people want to support the foundation pit, they can use this disassembled and reusable foundation pit support equipment for municipal tunnels. First, the user presses the main power switch to power on the device. The anti-slip mechanism 11 is provided with a first preset value and a second preset value, and the value of the first preset value is larger than the value of the second preset value. The fixing mechanism 13 is provided with a first preset value and a second preset value, and the value of the first preset value is smaller than the value of the second preset value. After the device is located outside the tunnel, the user pushes the base 1 backward, and the moving wheel 91 contacts and cooperates with the ground, thereby driving the moving wheel 91 to rotate, and the moving wheel 91 drives the base 1, the support platform 2, the first contact switch 31, the first guide sleeve 4, the support frame 5, the slider 6, the guide groove 61, the support The support rod 7, the first limit block 8, the first support frame 9, the buffer mechanism 10, the anti-skid mechanism 11, the support mechanism 12 and the fixing mechanism 13 move backward, so that the base 1 moves into the tunnel. After the base 1 moves backward to the specified position, the user stops pushing the base 1, and the moving wheel 91 stops rotating. Then the user first contacts the switch 31, so that the control module controls the anti-skid mechanism 11 to move downward. After the anti-skid mechanism 11 moves downward to contact the ground, the anti-skid mechanism 11 is inserted into the ground, and the anti-skid mechanism 11 fixes the base 1 to prevent the base 1 from overturning. When the downward movement distance of the anti-skid mechanism 11 reaches the first preset value of the anti-skid mechanism 11, the control module controls the anti-skid mechanism 11 to stop working. At the same time, the control module The block controls the support mechanism 12 to move outward, the support mechanism 12 drives the slider 6 to move outward, the slider 6 drives the support rod 7 to swing, the support rod 7 swings to contact and cooperate with the support frame 5, thereby driving the support frame 5 to move upward, the support frame 5 drives the buffer mechanism 10 to move upward, after the buffer mechanism 10 moves upward to contact with the tunnel wall, the buffer mechanism 10 supports the tunnel wall to prevent the soil in the tunnel wall from loosening and causing the collapse of the tunnel. When the magnetic force emitted by the support mechanism 12 reaches the preset value of the support mechanism 12, the control module controls the support mechanism 12 to stop working. At the same time, the control module controls the fixing mechanism 13 to move outward, and after the fixing mechanism 13 moves outward to contact with the support rod 7, the fixing mechanism 13 7 is fixed to prevent the support rod 7 from swinging during the tunnel operation and causing the support plate 101 to shift in position. When the distance of the fixing mechanism 13 reaches the first preset value of the fixing mechanism 13, the control module controls the fixing mechanism 13 to stop working. After the tunnel operation is completed, the user presses the first contact switch 31 again, and the control module controls the fixing mechanism 13 to move inward, and the fixing mechanism 13 moves inward away from the support rod 7. When the distance of the fixing mechanism 13 reaches the second preset value of the fixing mechanism 13, the control module controls the fixing mechanism 13 to stop working. At the same time, the control module controls the supporting mechanism 12 to move inward, and the supporting mechanism 12 drives the slider 6 to move inward, and the slider 6 drives the support rod 7 to swing in the opposite direction.The support rod 7 drives the support frame 5 and the buffer mechanism 10 downward. When the magnetic force emitted by the support mechanism 12 is less than the preset value of the support mechanism 12, the control module controls the support mechanism 12 to stop working. At the same time, the control module controls the anti-skid mechanism 11 to move upward, and the anti-skid mechanism 11 moves upward and away from the ground. When the distance of the anti-skid mechanism 11 reaches the second preset value of the anti-skid mechanism 11, the control module controls the anti-skid mechanism 11 to stop working. The user presses the main power switch again to power off the device.

[0050] When the support frame 5 moves upward, the support frame 5 drives the support plate 101, the first telescopic rod 102, the first telescopic spring 103 and the fixed plate 104 to move upward. After the support plate 101 moves upward to contact the tunnel wall, the support frame 5 continues to move upward, and the support frame 5 drives the first telescopic rod 102 to contract, the first telescopic spring 103 is compressed, and the support plate 101 fixes the tunnel wall to prevent the soil in the tunnel wall from loosening and causing the collapse of the tunnel. After the tunnel operation is completed, when the support frame 5 moves downward, the support frame 5 drives the first telescopic rod 102 to extend, the first telescopic spring 103 resets, and the support frame 5 drives the support plate 101, the first telescopic rod 102, the first telescopic spring 103 and the fixed plate 104 to move downward to return to their original position.

[0051] The first distance sensor 115 is provided with a first preset value and a second preset value. The value of the first preset value is greater than the value of the second preset value. After the base 1 moves to the specified position, the user presses the first contact switch 31, so that the control module controls the telescopic rod of the first electric push rod 112 to extend downward, and the telescopic rod of the first electric push rod 112 drives the first connecting plate 113 and the anti-slip spike 114 to move downward. After the anti-slip spike 114 moves downward and contacts the ground, the anti-slip spike 114 is inserted into the ground, and the anti-slip spike 114 fixes the base 1, thereby preventing the base 1 from tipping over. When the distance between the first connecting plate 113 and the first distance sensor 115 reaches the first preset value, the user presses the first contact switch 31, so that the control module controls the telescopic rod of the first electric push rod 112 to extend downward, and the telescopic rod of the first electric push rod 112 drives the first connecting plate 113 and the anti-slip spike 114 to move downward. When the distance sensor 115 reaches the first preset value, the control module controls the first electric push rod 112 to stop working. After the tunnel operation is completed, when the magnetic force emitted by the support mechanism 12 is less than the preset value of the support mechanism 12, the control module controls the telescopic rod of the first electric push rod 112 to shorten upward, and the telescopic rod of the first electric push rod 112 drives the first connecting plate 113 and the anti-slip spike 114 to move upward, so that the anti-slip spike 114 moves upward and leaves the ground. When the distance between the first connecting plate 113 and the first distance sensor 115 reaches the second preset value of the first distance sensor 115, the control module controls the first electric push rod 112 to stop working.

[0052] When the distance between the first connecting plate 113 and the first distance sensor 115 reaches the first preset value of the first distance sensor 115, the control module controls the dual-axis reduction motor 124 to work, and the output shaft of the dual-axis reduction motor 124 drives the screw rod 123 to rotate, and the screw rod 123 drives the second connecting plate 121 to move outward, and the second connecting plate 121 drives the slider 6 to move outward, and the slider 6 on the front left drives the digital Hall sensor 125 to move to the left, and the slider 6 drives the support rod 7 to swing, and the support rod 7 swings to contact and cooperate with the support frame 5, thereby driving the support frame 5 to move upward, so that the support plate 101 moves upward to contact with the tunnel wall, and the support plate 101 supports the tunnel wall, and the digital Hall sensor 125 moves to the left and approaches the strong magnet 126. When the magnetic force emitted by the strong magnet 126 reaches the digital Hall sensor 125 When the preset value is reached, the control module controls the dual-axis reduction motor 124 to stop working. After the tunnel operation is completed, when the distance of the fixing mechanism 13 reaches the second preset value of the fixing mechanism 13, the control module controls the dual-axis reduction motor 124 to work, and the output shaft of the dual-axis reduction motor 124 drives the screw rod 123 to rotate in the opposite direction, and the screw rod 123 drives the second connecting plate 121 to move inward, and the second connecting plate 121 drives the slider 6 to move inward, and the slider 6 on the front left drives the digital Hall sensor 125 to move right, and the slider 6 drives the support rod 7 to swing in the opposite direction, and the support rod 7 drives the first limit block 8 and the support frame 5 to move downward, and the digital Hall sensor 125 moves to the right away from the strong magnet 126. When the magnetic force emitted by the strong magnet 126 is less than the preset value of the digital Hall sensor 125, the control module controls the dual-axis reduction motor 124 to stop working.

[0053] The second distance sensor 137 is provided with a first preset value and a second preset value, the value of the first preset value is smaller than the value of the second preset value, when the support rod 7 is in a vertical state, when the magnetic force emitted by the strong magnet 126 reaches the preset value of the digital Hall sensor 125, the control module controls the second electric push rod 135 and the third electric push rod 138 to work, the telescopic rod of the second electric push rod 135 extends backward, and the telescopic rod of the third electric push rod 138 extends forward, the telescopic rod of the second electric push rod 135 and the telescopic rod of the third electric push rod 138 drive the second limit block 134 to move outward, the second limit block 134 drives the second telescopic rod 132 to extend, the second spring 133 is stretched, and the second limit block 134 moves outward to contact with the support rod 7, the second limit block 134 fixes the support rod 7 to prevent the support rod 7 from swinging during the tunnel operation and causing the support plate 101 to shift in position, when the second limit block 134 on the rear side is in contact with the second distance sensor When the distance between the second distance sensor 137 and the second limit block 134 reaches the first preset value of the second distance sensor 137, the control module controls the second electric push rod 135 and the third electric push rod 138 to stop working. After the tunnel operation is completed, the user presses the first contact switch 31 again, so that the control module controls the second electric push rod 135 and the third electric push rod 138 to work. The telescopic rod of the second electric push rod 135 is shortened forward, and the telescopic rod of the third electric push rod 138 is shortened backward. The telescopic rods of the second electric push rod 135 and the third electric push rod 138 drive the second limit block 134 to move inward. The second limit block 134 drives the second telescopic rod 132 to contract, and the second spring 133 is reset, so that the second limit block 134 moves inward away from the support rod 7. When the distance between the rear second limit block 134 and the second distance sensor 137 reaches the second preset value of the second distance sensor 137, the control module controls the second electric push rod 135 and the third electric push rod 138 to stop working.

[0054] The stones and groundwater in the tunnel will fall on the support plate 101, and the stones and groundwater will fall along the support plate 101 onto the sieve plate 142. The sieve plate 142 will screen the stones and groundwater, so that the stones remain on the sieve plate 142, and the groundwater passes through the sieve plate 142 and falls into the drainage trough 141. The groundwater flows onto the ground through the drainage trough 141 and the guide pipe 143, thereby preventing the stones from blocking the drainage trough 141. Under the influence of the weight of the stones themselves, the sieve plate 142 is driven to move downward, and the sieve plate 142 drives the third telescopic rod 144 to contract, and the third spring 145 is compressed. After the tunnel operation is completed, the user cleans the stones on the sieve plate 142. After the stones fall off the sieve plate 142, the third spring 145 is reset, thereby driving the sieve plate 142 to move upward, and the sieve plate 142 drives the third telescopic rod 144 to extend.

[0055] When the sieve plate 142 moves downward, when the left sieve plate 142 moves downward until it contacts the second pressure sensor 159, when the pressure generated by the left sieve plate 142 reaches the preset value of the second pressure sensor 159, the control module controls the first indicator light 152 to light up. At the same time, the control module controls the telescopic rod of the fifth electric push rod 158 to extend upward for two seconds and then turn off. The telescopic rod of the fifth electric push rod 158 drives the left top block 155 to move upward. After the left top block 155 moves upward until it contacts the left sieve plate 142, it drives the left sieve plate 142 to move upward, so that the left sieve plate 142 transports the stones upward. The user can clean the stones on the left sieve plate 142. After the stones are cleaned, the user presses the second contact switch 151, so that the control module controls the telescopic rod of the fifth electric push rod 158 to shorten downward for two seconds and then turn off. At the same time, the control module controls the first indicator light 152 to stop emitting light, and the telescopic rod of the fifth electric push rod 158 drives the left top block 155 to move downward. To return to its original position, when the right sieve plate 142 moves downward to contact with the first pressure sensor 157, when the pressure generated by the right sieve plate 142 reaches the preset value of the first pressure sensor 157, the control module controls the second indicator light 153 to light up. At the same time, the control module controls the telescopic rod of the fourth electric push rod 156 to extend upward for two seconds and then turn off. The telescopic rod of the fourth electric push rod 156 drives the right top block 155 to move upward. After the right top block 155 moves upward to contact with the right sieve plate 142, it drives the right sieve plate 142 to move upward, so that the right sieve plate 142 transports the stones upward. The user can clean the stones on the right sieve plate 142. After the stones are cleaned, the user presses the second contact switch 151, so that the control module controls the telescopic rod of the fourth electric push rod 156 to shorten downward for two seconds and then turn off. At the same time, the control module controls the second indicator light 153 to stop emitting light, and the telescopic rod of the fourth electric push rod 156 drives the right top block 155 to move downward to return to its original position.

[0056] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A disassembled and reusable foundation pit support equipment for municipal tunnels, characterized in that: include: A base (1), a support platform (2), a first contact switch (31), a first guide sleeve (4), a support frame (5), a slider (6), a guide groove (61), a support rod (7), a first limit block (8), a first support frame (9), a moving wheel (91), a buffer mechanism (10), an anti-slip mechanism (11), a support mechanism (12) and a fixing mechanism (13), wherein the base (1) is provided with a support platform (2), a first contact switch (31) is provided at the lower part of the support platform (2), and both sides of the upper middle part of the base (1) are provided with A first guide sleeve (4) is provided, and a support frame (5) is slidably connected between the two first guide sleeves (4). Two guide grooves (61) are provided on both sides of the middle portion of the base (1), and the guide grooves (61) are connected to the first guide sleeves (4). Slide blocks (6) are slidably provided on the inner sides of the four guide grooves (61), and support rods (7) are rotatably provided on the upper parts of the four slide blocks (6). Two first support frames (9) are provided on both sides of the base (1), and the first support frames (9) are connected to the guide grooves (61). The four first support frames (9) are connected to the guide grooves (61). The upper part of the frame (9) is provided with a first limit block (8), the first limit block (8) is slidably connected to the support rod (7), two movable wheels (91) are rotatably provided on both sides of the base (1), a buffer mechanism (10) is provided on the upper side of the support frame (5), an anti-slip mechanism (11) is provided on the base (1), a support mechanism (12) is provided on the base (1), and a fixing mechanism (13) is provided between the two first guide sleeves (4); the support mechanism (12) includes: a bearing seat (122) is provided on both sides of the upper middle part of the base (1); ), a dual-axis reduction motor (124) is installed in the middle of the base (1), and screw rods (123) are connected to both sides of the output shaft of the dual-axis reduction motor (124), the screw rods (123) are connected to the bearing seat (122), and second connecting plates (121) are threadedly provided on both sides of the screw rod (123), and both sides of the second connecting plate (121) are respectively connected to the slider (6) on the same side, a digital Hall sensor (125) is provided on one side of the slider (6), and a strong magnet (126) is provided on one side of the guide groove (61);The fixing mechanism (13) includes: a third support frame (131) is provided in the middle of the bottom of the support frame (5); a plurality of second telescopic rods (132) are provided on both sides of the third support frame (131); a second limit block (134) is connected between the plurality of second telescopic rods (132) on the same side in the transverse direction; the second limit block (134) cooperates with the support rod (7); a second spring (133) is wound around the plurality of second telescopic rods (132); the two ends of the second spring (133) are respectively connected to the third support frame (131) and the second limit block (134); the top of the third support frame (131) is connected to the second telescopic rod (132); A second electric push rod (135) is installed in the middle of the third support frame (131), and the telescopic rod of the second electric push rod (135) is connected to the second limit block (134) on one side. A third electric push rod (138) is installed in the middle of the bottom of the third support frame (131), and the telescopic rod of the third electric push rod (138) is connected to the second limit block (134) on one side. Second guide sleeves (136) are provided on both sides of the middle of the third support frame (131), and the second guide sleeves (136) are slidably connected to the second limit block (134). A second distance sensor (137) is provided in the middle of the upper part of the first guide sleeve (4) on one side.

2. The disassembled and reusable foundation pit support equipment for municipal tunnels according to claim 1, characterized in that: The buffer mechanism (10) comprises: a plurality of first telescopic rods (102) are provided on the top of a support frame (5); the top ends of the plurality of first telescopic rods (102) on the same longitudinal side are all connected to a fixing plate (104); a first telescopic spring (103) is wound around the plurality of first telescopic rods (102); both ends of the first telescopic spring (103) are respectively connected to the support frame (5) and the fixing plate (104); and a support plate (101) for fixing a tunnel wall is connected between the plurality of fixing plates (104).

3. The disassembled and reusable foundation pit support equipment for municipal tunnels according to claim 2, characterized in that: The anti-slip mechanism (11) comprises: a second support frame (111) is provided on both sides of the upper middle portion of the base (1); a first electric push rod (112) is installed on the upper portion of each of the two second support frames (111); the bottom ends of the telescopic rods of the two first electric push rods (112) are connected to a first connecting plate (113); a plurality of anti-slip spikes (114) for inserting into the tunnel ground are provided on both sides of the bottom of the two first connecting plates (113); and a first distance sensor (115) is provided on the upper portion of the second support frame (111) on one side.

4. The disassembled and reusable foundation pit support equipment for municipal tunnels according to claim 3, characterized in that: The invention also includes an anti-blocking mechanism (14), which includes: drainage grooves (141) for storing groundwater are provided on both sides of the lower part of the support frame (5); screen plates (142) for collecting stones are slidably provided in the middle of the inner walls of the two drainage grooves (141); a guide pipe (143) is connected between the two drainage grooves (141) and the base (1); a plurality of third telescopic rods (144) are provided on the inner walls of the two drainage grooves (141); the third telescopic rods (144) are connected to the screen plates (142); a third spring (145) is wound around the plurality of third telescopic rods (144); and two ends of the third spring (145) are respectively connected to the drainage groove (141) and the screen plates (142).

5. The disassembled and reusable foundation pit support equipment for municipal tunnels according to claim 4, characterized in that: The invention also includes a block removing mechanism (15), which includes: a second contact switch (151) is provided in the middle of the lower part of the support platform (2), a first indicator light (152) is provided at the lower part of the support platform (2), a second indicator light (153) is provided at the lower part of the support platform (2), and a third guide sleeve (154) is provided on both sides of the top of the third support frame (131). The two third guide sleeves (154) are both slidably provided with a top block (155), and the top block (155) is slidably connected to the drainage groove (141). A fourth electric push rod (156) is installed on the top of the support frame (131), the telescopic rod of the fourth electric push rod (156) is connected to the top block (155) on one side, and a first pressure sensor (157) is provided in the middle of the inner wall of the drainage groove (141) on one side. A fifth electric push rod (158) is installed on the top of the third support frame (131), the telescopic rod of the fifth electric push rod (158) is connected to the top block (155) on one side, and a second pressure sensor (159) is provided in the middle of the inner wall of the drainage groove (141) on one side.

6. The disassembled and reusable foundation pit support equipment for municipal tunnels according to claim 5, characterized in that: The invention also includes a control box (3), the control box (3) is installed on the upper part of the support platform (2), and a switching power supply, a control module and a power supply module are installed in the control box (3), the switching power supply is used to power the disassembled and reused foundation pit support equipment for municipal tunnels, the output end of the switching power supply is electrically connected to the power supply module, the power supply module is connected to a main power switch through a line, and the control module and the power supply module are electrically connected; the control module is connected to a DS1302 clock circuit and a 24C02 circuit; a first contact switch (31), a first distance sensor (115), a digital Hall sensor (125), a second The distance sensor (137), the second contact switch (151), the first pressure sensor (157) and the second pressure sensor (159) are all electrically connected to the control module, the first electric push rod (112), the second electric push rod (135), the third electric push rod (138), the fourth electric push rod (156) and the fifth electric push rod (158) are all connected to the control module through the relay control module, the dual-axis reduction motor (124) is connected to the control module through the DC motor forward and reverse module, and the first indicator light (152) and the second indicator light (153) are both electrically connected to the control module.

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