阅读说明：本技术 一种用于市政隧道可拆解重复利用基坑支护设备 (Be used for removable reuse excavation supporting equipment that separates of municipal tunnel ) 是由 李琦 周国强 王晶 邱健洋 张广阔 于 2021-07-27 设计创作，主要内容包括：本发明涉及一种基坑支护设备,尤其涉及一种用于市政隧道可拆解重复利用基坑支护设备。本发明提供一种实现自动支护隧道内部、对地下水进行排放和集中收集石块的用于市政隧道可拆解重复利用基坑支护设备。一种用于市政隧道可拆解重复利用基坑支护设备,包括：底座、支撑台、第一接触开关、第一导向套和支护架等；底座上设有支撑台,支撑台下部设有第一接触开关,底座上中部两侧均设有第一导向套,两个第一导向套之间滑动式连接有支护架。本发明通过防滑钉向下运动到与地面接触后,使得防滑钉插入地面中,防滑钉对底座进行固定,从而防止底座翻倒,实现防滑钉固定底座效果。(The invention relates to foundation pit supporting equipment, in particular to dismountable and reusable foundation pit supporting equipment for a municipal tunnel. The invention provides a detachable and reusable foundation pit supporting device for a municipal tunnel, which can realize automatic supporting of the interior of the tunnel, discharge of underground water and centralized collection of stones. A detachable reuse underground structure supporting equipment for municipal tunnel includes: the device comprises a base, a supporting table, a first contact switch, a first guide sleeve, a supporting frame and the like; the base is provided with a supporting table, the lower portion of the supporting table is provided with a first contact switch, the two sides of the middle portion of the base are provided with first guide sleeves, and a support frame is connected between the two first guide sleeves in a sliding mode. According to the invention, after the anti-skid nails move downwards to contact with the ground, the anti-skid nails are inserted into the ground and fix the base, so that the base is prevented from overturning, and the effect of fixing the base by the anti-skid nails is realized.)

1. The utility model provides a can disassemble reuse excavation supporting equipment for municipal administration tunnel which characterized in that includes: the anti-skid device comprises a base (1), a supporting table (2), first contact switches (31), first guide sleeves (4), a supporting frame (5), sliding blocks (6), guide grooves (61), supporting rods (7), first limiting blocks (8), first supporting frames (9), moving wheels (91), a buffering mechanism (10), an anti-skid mechanism (11), a supporting mechanism (12) and a fixing mechanism (13), wherein the supporting table (2) is arranged on the base (1), the first contact switches (31) are arranged on the lower portion of the supporting table (2), the first guide sleeves (4) are arranged on two sides of the upper middle portion of the base (1), the supporting frame (5) is connected between the two first guide sleeves (4) in a sliding mode, the two guide grooves (61) are arranged on two sides of the upper middle portion of the base (1), the guide grooves (61) are connected with the first guide sleeves (4), the sliding blocks (6) are arranged on the inner sides of the four guide grooves (61) in a sliding mode, four equal rotary types in slider (6) upper portion are equipped with bracing piece (7), both sides all are equipped with two first support frame (9) on base (1), first support frame (9) are connected with guide way (61), four first support frame (9) upper portions all are equipped with first stopper (8), first stopper (8) and bracing piece (7) sliding type are connected, the equal rotary type in both sides is equipped with two and removes wheel (91) on base (1), support frame (5) upside is equipped with buffer gear (10), be equipped with anti-skid device (11) on base (1), be equipped with on base (1) and strut mechanism (12), be equipped with between two first uide bushing (4) fixed establishment (13).

2. A demountable and recyclable excavation supporting apparatus for municipal tunnels according to claim 1, wherein the buffer mechanism (10) comprises: a plurality of first telescopic rods (102) are arranged at the top of the supporting frame (5), fixing plates (104) are connected to the top ends of the plurality of first telescopic rods (102) on the same side in the longitudinal direction, a first telescopic spring (103) is wound on the plurality of first telescopic rods (102), two ends of the first telescopic spring (103) are connected with the supporting frame (5) and the fixing plates (104) respectively, and a supporting plate (101) used for fixing a tunnel wall surface is connected between the plurality of fixing plates (104).

3. A demountable and recyclable excavation supporting apparatus for municipal tunnels according to claim 2, wherein the anti-skid mechanism (11) comprises: middle part both sides all are equipped with second support frame (111) on base (1), first electric putter (112) are all installed on two second support frame (111) upper portions, and the telescopic link bottom of two first electric putter (112) all is connected with first connecting plate (113), and two first connecting plate (113) bottom both sides all are equipped with a plurality of studs (114) that are used for inserting tunnel ground, and second support frame (111) upper portion of one side is equipped with first distance sensor (115).

4. A demountable and recyclable excavation supporting apparatus for municipal tunnels according to claim 3, wherein the supporting means (12) comprises: base (1) is gone up middle part both sides and all is equipped with bearing frame (122), double-shaft gear motor (124) are installed to the centre on base (1), both sides all are connected with lead screw (123) on double-shaft gear motor (124) output shaft, lead screw (123) are connected with bearing frame (122), the equal screw thread formula in lead screw (123) both sides is equipped with second connecting plate (121), second connecting plate (121) both sides are connected with slider (6) of homonymy respectively, be equipped with digital hall sensor (125) on slider (6) of one side, be equipped with strong magnet (126) on guide way (61) of one side.

5. A demountable and reusable foundation pit support apparatus for municipal tunnels according to claim 4, wherein the fixing mechanism (13) comprises: a third support frame (131) is arranged in the middle of the bottom of the support frame (5), a plurality of second telescopic rods (132) are arranged on two 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 lateral side, second springs (133) are wound on the plurality of second telescopic rods (132), two ends of each second spring (133) are respectively connected with the third support frame (131) and the second limit block (134), a second electric push rod (135) is arranged in the middle of the top of the third support frame (131), a telescopic rod of the second electric push rod (135) is connected with the second limit block (134) on one side, a third electric push rod (138) is arranged in the middle of the bottom of the third support frame (131), a second guide sleeve (136) is arranged on two sides of the middle of the third support frame (131), the second guide sleeve (136) is connected with the second limiting block (134) in a sliding mode, and a second distance sensor (137) is arranged in the middle of the upper portion of the first guide sleeve (4) on one side.

6. A demountable and recyclable excavation supporting apparatus for municipal tunnels according to claim 5, further comprising an anti-blocking mechanism (14), wherein the anti-blocking mechanism (14) comprises: support frame (5) lower part both sides all are equipped with water drainage tank (141) that are used for depositing groundwater, two water drainage tank (141) inner wall middle parts all slidingtype are equipped with sieve (142) that are used for collecting the stone, all be connected with between two water drainage tank (141) and base (1) honeycomb duct (143), two water drainage tank (141) inner walls all are equipped with many third telescopic links (144), third telescopic link (144) are connected with sieve (142), all around having third spring (145) on many third telescopic links (144), third spring (145) both ends are connected with water drainage tank (141) and sieve (142) respectively.

7. A demountable and recyclable excavation supporting apparatus for municipal tunnels according to claim 6, further comprising a de-blocking mechanism (15), the de-blocking mechanism (15) comprising: be equipped with second contact switch (151) in the middle of brace table (2) lower part, brace table (2) lower part is equipped with first pilot lamp (152), brace table (2) lower part is equipped with second pilot lamp (153), third support frame (131) top both sides all are equipped with third uide bushing (154), all be equipped with kicking block (155) on two third uide bushings (154) with the slidingtype, kicking block (155) and water drainage tank (141) sliding connection, fourth electric putter (156) are installed at third support frame (131) top, the telescopic link of fourth electric putter (156) is connected with kicking block (155) of one side, water drainage tank (141) inner wall middle part of one side is equipped with first pressure sensor (157), fifth electric putter (158) is installed at third support frame (131) top, the telescopic link of fifth electric putter (158) is connected with kicking block (155) of one side, water drainage tank (141) inner wall middle part of one side is equipped with second pressure sensor (159).

8. The detachable and reusable foundation pit supporting equipment for the municipal tunnel according to claim 7, further comprising a control box (3), wherein the control box (3) is installed on the upper portion of the support table (2), a switching power supply, a control module and a power module are installed in the control box (3), the switching power supply supplies power for the detachable and reusable foundation pit supporting equipment for the municipal tunnel, the output end of the switching power supply is electrically connected with the power module, the power module is connected with a power main switch through a line, and the control module is electrically connected with the power module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; first contact switch (31), first distance sensor (115), digital hall sensor (125), second distance sensor (137), second contact switch (151), first pressure sensor (157) and second pressure sensor (159) all pass through electric connection with control module, first electric putter (112), second electric putter (135), third electric putter (138), fourth electric putter (156) and fifth electric putter (158) all pass through relay control module with control module and are connected, biax gear motor (124) are passed through direct current motor with control module and are just reversing the module and be connected, first pilot lamp (152) and second pilot lamp (153) all pass through electric connection with control module.

Technical Field

The invention relates to foundation pit supporting equipment, in particular to dismountable and reusable foundation pit supporting equipment for a municipal tunnel.

Background

Excavation supporting, be the safety for guaranteeing underground structure construction and foundation ditch all ring edge borders, the fender of adopting to foundation ditch lateral wall and all ring edge borders, reinforcement and safeguard measure, excavation supporting has great effect to preventing that the foundation ditch from taking place to collapse, but traditional excavation supporting is when using, lack special fixing device, though can play certain supporting role to the foundation ditch, but the guard action is limited, the emergence of collapse can't be avoided, in case the collapse accident takes place, then traditional supporting scheme can't carry out effectual blockking, and groundwater in the tunnel needs the staff to carry out manual guide, prevent that groundwater from destroying the inner structure in tunnel, the inside stone dispersion of tunnel is more chaotic, it collects the stone to need the staff, and concentrated the processing, staff's work load has been increased.

Therefore, the detachable and reusable foundation pit supporting equipment for the municipal tunnel is designed, wherein the detachable and reusable foundation pit supporting equipment is used for automatically supporting the interior of the tunnel, discharging underground water and collecting stones in a centralized mode.

Disclosure of Invention

In order to overcome the defects that the traditional foundation pit supporting equipment cannot automatically support the inside of a tunnel, cannot discharge underground water and cannot collect stones in a centralized manner, the invention provides the foundation pit supporting equipment for the municipal tunnel, which can be disassembled and reused, and can realize the automatic support of the inside of the tunnel, discharge the underground water and collect the stones in the centralized manner.

The invention is realized in this way, a dismountable and reusable foundation pit supporting device for municipal tunnels, comprising: the device comprises a base, a supporting platform, a first contact switch, first guide sleeves, a supporting frame, a sliding block, guide grooves, supporting rods, a first limiting block, a first supporting frame, moving wheels, a buffer mechanism, an anti-skidding mechanism, a supporting mechanism and a fixing mechanism, wherein the supporting platform is arranged on the base, the first contact switch is arranged at the lower part of the supporting platform, the first guide sleeves are arranged on two sides of the upper middle part of the base, the supporting frame is connected between the two first guide sleeves in a sliding manner, the two guide grooves are arranged on two sides of the upper middle part of the base and connected with the first guide sleeves, the sliding block is arranged on the inner sides of the four guide grooves in a sliding manner, the supporting rods are arranged on the upper parts of the four sliding blocks in a rotating manner, the two first supporting frames are arranged on two sides of the base and connected with the guide grooves, the first limiting blocks are arranged on the upper parts of the four first supporting frames in a sliding manner and connected with the supporting rods, and the two moving wheels are arranged on two sides of the base in a rotating manner, the support frame upside is equipped with buffer gear, is equipped with anti-skidding mechanism on the base, is equipped with supporting mechanism on the base, is equipped with fixed establishment between two first uide bushings.

In a preferred embodiment of the present invention, the buffer mechanism includes: the support frame top is equipped with many first telescopic links, and many first telescopic link tops of vertical homonymy all are connected with the fixed plate, all around having first expanding spring on many first telescopic links, and first expanding spring both ends are connected with support frame and fixed plate respectively, are connected with the backplate that is used for fixed tunnel wall between a plurality of fixed plate tops.

In a preferred embodiment of the present invention, the anti-slip mechanism comprises: the middle part both sides all are equipped with the second support frame on the base, and first electric putter is all installed on two second support frame upper portions, and two first electric putter's telescopic link bottom all is connected with first connecting plate, and two first connecting plate bottom both sides all are equipped with a plurality of studs that are used for inserting tunnel ground, and the second support frame upper portion of one side is equipped with first distance sensor.

In a preferred embodiment of the present invention, the support mechanism comprises: the middle part both sides all are equipped with the bearing frame on the base, and the middle double-shaft gear motor that installs on the base, both sides all are connected with the lead screw on the double-shaft gear motor output shaft, and the lead screw is connected with the bearing frame, and the equal screw thread formula in lead screw both sides is equipped with the second connecting plate, and the second connecting plate both sides are connected with the slider of homonymy respectively, are equipped with digital hall sensor on the slider of one side, are equipped with the strong magnet on the guide way of one side.

In a preferred embodiment of the present invention, the fixing mechanism comprises: be equipped with the third support frame in the middle of the support frame bottom, both sides all are equipped with many second telescopic links on the third support frame, all be connected with the second stopper between many second telescopic links of horizontal homonymy, all around having the second spring on many second telescopic links, the second spring both ends are connected with third support frame and second stopper respectively, install second electric putter in the middle of the third support frame top, second electric putter's telescopic link is connected with the second stopper of one side, install third electric putter in the middle of the third support frame bottom, third electric putter's telescopic link and the second stopper of one side are connected, third support frame middle part both sides all are equipped with the second uide bushing, the second uide bushing is connected with second stopper slidingtype, be equipped with second distance sensor in the middle of the first uide bushing upper portion of one side.

In a preferred embodiment of the present invention, the present invention further comprises an anti-blocking mechanism, wherein the anti-blocking mechanism comprises: support frame lower part both sides all are equipped with the water drainage tank that is used for depositing groundwater, and two equal slidingtype in water drainage tank inner wall middle parts are equipped with the sieve that is used for collecting the stone, all are connected with the honeycomb duct between two water drainage tanks and the base, and two water drainage tank inner walls all are equipped with many third telescopic links, and the third telescopic link is connected with the sieve, all around having the third spring on many third telescopic links, and the third spring both ends are connected with water drainage tank and sieve respectively.

In a preferred embodiment of the present invention, the present invention further comprises a block removing mechanism, wherein the block removing mechanism comprises: be equipped with second contact switch in the middle of the brace table lower part, the brace table lower part is equipped with first pilot lamp, the brace table lower part is equipped with the second pilot lamp, third support frame top both sides all are equipped with the third uide bushing, equal slidingtype is equipped with the kicking block on two third uide bushings, kicking block and water drainage tank sliding type connection, fourth electric putter is installed at third support frame top, fourth electric putter's telescopic link is connected with the kicking block of one side, water drainage tank inner wall middle part of one side is equipped with first pressure sensor, fifth electric putter is installed at third support frame top, fifth electric putter's telescopic link is connected with the kicking block of one side, water drainage tank inner wall middle part of one side is equipped with second pressure sensor.

In a preferred embodiment of the invention, the device further comprises a control box, the control box is arranged on the upper portion of the support table, a switching power supply, a control module and a power supply module are arranged in the control box, the switching power supply supplies power for the detachable and reusable foundation pit supporting equipment for the municipal tunnel, the output end of the switching power supply is electrically connected with the power supply module, the power supply module is connected with a power supply main switch through a circuit, and the control module is electrically connected with the power supply module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; first contact switch, first distance sensor, digital hall sensor, second distance sensor, second contact switch, first pressure sensor and second pressure sensor all pass through electric connection with control module, first electric putter, second electric putter, third electric putter, fourth electric putter and fifth electric putter all pass through relay control module with control module and are connected, biax gear motor passes through direct current motor with control module and just reverses the module and is connected, first pilot lamp and second pilot lamp all pass through electric connection with control module.

The invention provides a detachable and reusable foundation pit supporting device for a municipal tunnel, which has the following beneficial effects:

1. according to the invention, after the anti-skid nails move downwards to contact with the ground, the anti-skid nails are inserted into the ground and fix the base, so that the base is prevented from overturning, and the effect of fixing the base by the anti-skid nails is realized;

2. when the supporting plate moves upwards to be in contact with the wall surface of the tunnel, the supporting frame continues to move upwards, the supporting frame drives the first telescopic rod to contract, the first telescopic spring is compressed, the supporting plate fixes the wall surface of the tunnel, the collapse of the tunnel due to the loosening of soil in the wall surface of the tunnel is prevented, and the effect that the supporting plate fixes the wall surface of the tunnel is achieved;

3. according to the invention, the sieve plate is used for sieving stone blocks and underground water, so that the stone blocks are left on the sieve plate, the underground water falls into the drainage grooves through the sieve plate, and the underground water flows on the ground through the drainage grooves and the flow guide pipe, thereby preventing the stone blocks from blocking the drainage grooves and realizing the stone sieving effect of the sieve plate;

4. after left kicking block upward movement reached and left sieve contact to drive left sieve upward movement, make left sieve upwards transport the stone, the user can clear up the stone on the left sieve, realizes that left sieve transports the stone effect.

Drawings

Fig. 1 is a schematic perspective view of a first perspective structure according to the present invention.

Fig. 2 is a perspective view of a second perspective structure according to the present invention.

Fig. 3 is a schematic perspective view of a first part of the present invention.

Fig. 4 is a perspective view of a second part of the present invention.

Fig. 5 is a schematic perspective view of a buffer mechanism according to the present invention.

Fig. 6 is an enlarged view of the invention at a.

Fig. 7 is a schematic perspective view of the anti-slip mechanism of the present invention.

Fig. 8 is a schematic sectional three-dimensional structure diagram of the antiskid mechanism of the present invention.

Fig. 9 is a schematic perspective view of a first part of the supporting mechanism of the present invention.

Fig. 10 is a perspective view of a second part of the support mechanism of the present invention.

Fig. 11 is a perspective view of a first part of the fixing mechanism of the present invention.

Fig. 12 is a perspective view of a second part of the fixing mechanism of the present invention.

Fig. 13 is a perspective view of a third portion of the fastening mechanism of the present invention.

Fig. 14 is a schematic perspective view of the anti-blocking mechanism of the present invention.

Fig. 15 is an enlarged view of the invention at B.

FIG. 16 is a perspective view of a first part of the deblocking mechanism according to the present invention.

FIG. 17 is an enlarged view of the invention at C.

FIG. 18 is a perspective view of a second part of the deblocking mechanism according to the present invention.

Fig. 19 is an enlarged view of the invention at D.

FIG. 20 is a block circuit diagram of the present invention.

Fig. 21 is a schematic circuit diagram of the present invention.

The parts are labeled as follows: 1. a base, 2, a support platform, 3, a control box, 31, a first contact switch, 4, a first guide sleeve, 5, a support frame, 6, a sliding block, 61, a guide groove, 7, a support rod, 8, a first limit block, 9, a first support frame, 91, a movable wheel, 10, a buffer mechanism, 101, a support plate, 102, a first telescopic rod, 103, a first telescopic spring, 104, a fixed plate, 11, an antiskid mechanism, 111, a second support frame, 112, a first electric push rod, 113, a first connecting plate, 114, an antiskid nail, 115, a first distance sensor, 12, a support mechanism, 121, a second connecting plate, 122, a bearing seat, 123, a screw rod, 124, a double-shaft speed reducing motor, 125, a digital Hall sensor, 126, a strong magnet, 13, a fixing mechanism, 131, a third support frame, 132, a second telescopic rod, 133, a second spring, 134, a second limit block, 135, a second electric push rod, 136. the second guide sleeve 137, the second distance sensor 138, the third electric push rod 14, the anti-blocking mechanism 141, the drainage channel 142, the sieve plate 143, the drainage pipe 144, the third telescopic rod 145, the third spring 15, the block removing mechanism 151, the second contact switch 152, the first indicator light 153, the second indicator light 154, the third guide sleeve 155, the top block 156, the fourth electric push rod 157, the first pressure sensor 158, the fifth electric push rod 159 and the second pressure sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-21, the present invention provides a technical solution: a detachable and reusable foundation pit supporting device for municipal tunnels comprises a base 1, a supporting table 2, a first contact switch 31, first guide sleeves 4, a supporting frame 5, a sliding block 6, guide grooves 61, support rods 7, a first limiting block 8, a first supporting frame 9, a moving wheel 91, a buffer mechanism 10, an anti-skidding mechanism 11, a supporting mechanism 12 and a fixing mechanism 13, wherein the supporting table 2 is welded at the left part of the front side of the base 1, the first contact switch 31 is installed at the lower part of the front side of the supporting table 2, the first guide sleeves 4 are welded at the front side and the rear side of the middle part of the base 1, the supporting frame 5 is connected between the tops of the two first guide sleeves 4 in a sliding manner, the two guide grooves 61 are arranged at the front side and the rear side of the middle part of the base 1, the guide grooves 61 are connected with the first guide sleeves 4, the sliding blocks 6 are arranged at the inner sides of the four guide grooves 61 in a sliding manner, the support rods 7 are arranged at the upper parts of the four sliding blocks 6 in a rotating manner, the cooperation of bracing piece 7 and support 5, two first support frames 9 have all been welded to the left and right sides on the base 1, first support frame 9 is connected with guide way 61, four first support frame 9 upper portions all are equipped with first stopper 8, first stopper 8 is connected with bracing piece 7 slidingtype, the equal rotary type in both sides is equipped with two removal wheels 91 around the base 1, 5 upsides of support is equipped with buffer gear 10, be equipped with anti-skidding mechanism 11 on the base 1, be equipped with supporting mechanism 12 on the base 1, be equipped with fixed establishment 13 between two first uide bushing 4.

Buffer gear 10 is including timbering board 101, first telescopic link 102, first expanding spring 103 and fixed plate 104, 5 tops of timbering frame are equipped with many first telescopic links 102, many first telescopic links 102 top of vertical homonymy all are connected with fixed plate 104, be connected with a plurality of fixed plate 104 between the top and prop up backplate 101, all around first expanding spring 103 on many first telescopic links 102, first expanding spring 103 both ends are connected with timbering frame 5 and fixed plate 104 respectively.

Antiskid 11 is including second support frame 111, first electric putter 112, first connecting plate 113, antiskid nail 114 and first distance sensor 115, second support frame 111 has all been welded to both sides around the middle part on base 1, there is first electric putter 112 on two second support frame 111 front sides upper portion all through bolt fixed mounting, two first electric putter 112's telescopic link bottom all is connected with first connecting plate 113, a plurality of antiskid nails 114 have all been welded to two first connecting plate 113 bottom left and right sides, first distance sensor 115 is installed to the second support frame 111 upper portion front side of front side.

Support mechanism 12 is including second connecting plate 121, bearing frame 122, lead screw 123, biax gear motor 124, digital hall sensor 125 and strong magnet 126, bearing frame 122 has all been welded to the middle part left and right sides on base 1, there is biax gear motor 124 in the middle of on base 1 through bolt fixed mounting, biax gear motor 124 output shaft left and right sides all is connected with lead screw 123, lead screw 123 is connected with bearing frame 122, the equal screw thread formula in the lead screw 123 left and right sides is equipped with second connecting plate 121, both sides are connected with the slider 6 of homonymy respectively around the second connecting plate 121, digital hall sensor 125 is installed to the left part rear side of the slider 6 of front portion left part, be equipped with strong magnet 126 on the guide way 61 of front side left part.

The fixing mechanism 13 comprises 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 in the middle of the bottom of the support frame 5, a plurality of second telescopic rods 132 are respectively arranged on the front side and the rear side of the third support frame 131, the second limit block 134 is connected between the plurality of second telescopic rods 132 on the same transverse side, the second limit block 134 is matched with the support rod 7, the plurality of second telescopic rods 132 are respectively wound with the second spring 133, two ends of the second spring 133 are respectively connected with the third support frame 131 and the second limit block 134, the second electric push rod 135 is fixedly installed in the middle of the top of the third support frame 131 through bolts, the telescopic rod of the second electric push rod 135 is connected with the second limit block 134 on the rear side, the third electric push rod 138 is fixedly installed in the middle of the bottom of the third support frame 131 through bolts, the telescopic rod of the third electric push rod 138 is connected with the second limiting block 134 at the front side, the front side and the rear side of the middle part of the third support frame 131 are both welded with the second guide sleeves 136, the second guide sleeves 136 are connected with the second limiting block 134 in a sliding manner, and the middle of the front side of the upper part of the first guide sleeve 4 at the rear side is provided with the second distance sensor 137.

Still including preventing stifled mechanism 14, prevent stifled mechanism 14 including water drainage tank 141, sieve 142, the honeycomb duct 143, third telescopic link 144 and third spring 145, water drainage tank 141 has all been welded to the support 5 lower part left and right sides, two equal slidingtypes in water drainage tank 141 inner wall middle parts are equipped with sieve 142, all be connected with honeycomb duct 143 between two water drainage tank 141 and the base 1, two water drainage tank 141 inner walls all are equipped with many third telescopic links 144, third telescopic link 144 is connected with sieve 142, all around having third spring 145 on many third telescopic links 144, third spring 145 both ends are connected with water drainage tank 141 and sieve 142 respectively.

The automatic block removing device further comprises a block removing mechanism 15, wherein the block removing mechanism 15 comprises 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 portion of the front side of the support platform 2, the first indicator light 152 is installed on the left side of the lower portion of the front side of the support platform 2, the second indicator light 153 is installed on the right side of the lower portion of the front side of the support platform 2, the third guide sleeves 154 are welded on the left side and the right side of the top portion of the third support frame 131, the top blocks 155 are arranged on the two third guide sleeves 154 in a sliding mode, the top blocks 155 are connected with the drainage grooves 141 in a sliding mode, the top blocks 155 are matched with the sieve plates 142, the fourth electric push rod 156 is fixedly installed on the right side of the top portion of the third support frame 131 through bolts, and the telescopic rod of the fourth electric push rod 156 is connected with the top block 155 on the right side, the fourth electric push rod 156 is located on the right side of the third guide sleeve 154 on the right side, a first pressure sensor 157 is installed in the middle of the inner wall of the water discharging groove 141 on the right side, a fifth electric push rod 158 is fixedly installed on the left side of the top of the third supporting frame 131 through a bolt, an expansion rod of the fifth electric push rod 158 is connected with the top block 155 on the left side, and a second pressure sensor 159 is installed in the middle of the inner wall of the water discharging groove 141 on the left side.

The device is characterized by further comprising a control box 3, the control box 3 is fixedly mounted on the upper portion of the front side of the support table 2 through bolts, a switching power supply, a control module and a power module are mounted in the control box 3, the switching power supply supplies power for the detachable and reusable foundation pit supporting equipment for the municipal tunnel, the output end of the switching power supply is electrically connected with the power module, the power module is connected with a power main switch through a circuit, and the control module is electrically connected with the power module; the control module is connected with a DS1302 clock circuit and a 24C02 circuit; the first contact switch 31, the first distance sensor 115, the digital hall 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 with 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 with the control module through a relay control module, the double-shaft speed reduction motor 124 is connected with the control module through a direct current motor forward and reverse rotation module, and the first indicator lamp 152 and the second indicator lamp 153 are all electrically connected with the control module.

The working principle of the invention is that when people want to support a foundation pit, the dismountable and reusable foundation pit supporting equipment for the municipal tunnel can be used, firstly, a user presses a power main switch to electrify the equipment, a first preset value and a second preset value are arranged in an antiskid mechanism 11, the numerical value of the first preset value is larger than that of the second preset value, a first preset value and a second preset value are arranged in a fixing mechanism 13, the numerical value of the first preset value is smaller than that of the second preset value, after the equipment is positioned outside the tunnel, the user pushes a base 1 backwards, a movable wheel 91 is in contact fit with the ground so as to drive the movable wheel 91 to rotate, and the movable wheel 91 drives the base 1, a supporting table 2, a first contact switch 31, a first guide sleeve 4, a supporting frame 5, a sliding block 6, a guide groove 61, a supporting rod 7, a first limiting block 8, a first supporting frame 9, a second supporting frame 9 and a sliding block 6, The buffer mechanism 10, the antiskid mechanism 11, the support mechanism 12 and the fixing mechanism 13 move backwards to enable the base 1 to move into the tunnel, after the base 1 moves backwards to a designated position, a user stops pushing the base 1, the moving wheel 91 stops rotating, then the user first contacts the switch 31 to enable the control module to control the antiskid mechanism 11 to move downwards, after the antiskid mechanism 11 moves downwards to contact with the ground, the antiskid mechanism 11 is inserted into the ground, the antiskid mechanism 11 fixes the base 1 to prevent the base 1 from overturning, when the distance of the downward movement of the antiskid mechanism 11 reaches a first preset value of the antiskid mechanism 11, the control module controls the antiskid mechanism 11 to stop working, meanwhile, the control module controls the support mechanism 12 to move outwards, the support mechanism 12 drives the sliding block 6 to move outwards, the sliding block 6 drives the support rod 7 to swing, the supporting rod 7 swings to be in contact fit with the supporting frame 5, so that the supporting frame 5 is driven to move upwards, the supporting frame 5 drives the buffer mechanism 10 to move upwards, after the buffer mechanism 10 moves upwards to be in contact with the wall surface of the tunnel, the buffer mechanism 10 supports the wall surface of the tunnel, the phenomenon that the tunnel collapses due to loose soil in the wall surface of the tunnel is prevented, when the magnetic force emitted by the supporting mechanism 12 reaches the preset value of the supporting mechanism 12, the control module controls the supporting mechanism 12 to stop working, meanwhile, the control module controls the fixing mechanism 13 to move outwards, after the fixing mechanism 13 moves outwards to be in contact with the supporting rod 7, the fixing mechanism 13 fixes the supporting rod 7, the supporting rod 7 is prevented from swinging in the tunnel operation process to cause the position deviation of the supporting plate 101, 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, the control module controls the fixing mechanism 13 to move inwards, the fixing mechanism 13 moves inwards to be far away from the supporting rod 7, when the distance between the fixing mechanism 13 and the second preset value of the fixing mechanism 13 is reached, the control module controls the fixing mechanism 13 to stop working, meanwhile, the control module controls the supporting mechanism 12 to move inwards, the supporting mechanism 12 drives the sliding block 6 to move inwards, the sliding block 6 drives the supporting rod 7 to swing reversely, the supporting rod 7 drives the supporting frame 5 and the buffer mechanism 10 to move downwards, when the magnetic force emitted by the supporting mechanism 12 is smaller than the preset value of the supporting mechanism 12, the control module controls the supporting mechanism 12 to stop working, and meanwhile, the control module controls the anti-skid mechanism 11 to move upwards, the anti-skid mechanism 11 moves upwards to be separated from the ground, when the distance between the anti-skid mechanism 11 and the second preset value of the anti-skid mechanism 11 is reached, the control module controls the anti-skid mechanism 11 to stop working, and the user presses the power supply main switch again to power off the equipment.

When the support frame 5 moves upwards, the support frame 5 drives the support plate 101, the first telescopic rod 102, the first telescopic spring 103 and the fixing plate 104 move upwards, after the support plate 101 moves upwards to be in contact with the wall surface of the tunnel, the support frame 5 continues to move upwards, the support frame 5 drives the first telescopic rod 102 to contract, the first telescopic spring 103 is compressed, the support plate 101 fixes the wall surface of the tunnel, the phenomenon that the soil in the wall surface of the tunnel is loosened to cause collapse of the tunnel is prevented, after tunnel operation is completed, when the support frame 5 moves downwards, the support frame 5 drives the first telescopic rod 102 to extend, the first telescopic spring 103 resets, the support frame 5 drives the support plate 101, the first telescopic rod 102, the first telescopic spring 103 and the fixing plate 104 move downwards to the recovery position.

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 larger than that of the second preset value, after the base 1 moves to a specified position, a user presses the first contact switch 31 to enable the control module to control the telescopic rod of the first electric push rod 112 to extend downwards, the telescopic rod of the first electric push rod 112 drives the first connecting plate 113 and the anti-skid nails 114 to move downwards, after the anti-skid nails 114 move downwards to contact with the ground, the anti-skid nails 114 are inserted into the ground, the anti-skid nails 114 fix the base 1 to prevent the base 1 from overturning, 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 first electric push rod 112 to stop working, after tunnel operation is completed, when the magnetic force emitted by the support mechanism 12 is smaller than the preset value of the support mechanism 12, so that the control module controls the telescopic rod of the first electric putter 112 to shorten upwards, the telescopic rod of the first electric putter 112 drives the first connecting plate 113 and the anti-skid nails 114 to move upwards, so that the anti-skid nails 114 move upwards to be separated from the ground, and 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 putter 112 to stop working.

When the distance between the first connecting plate 113 and the first distance sensor 115 reaches a first preset value of the first distance sensor 115, the control module controls the operation of the dual-shaft speed reducing motor 124, the output shaft of the dual-shaft speed reducing motor 124 drives the screw rod 123 to rotate, the screw rod 123 drives the second connecting plate 121 to move outwards, the second connecting plate 121 drives the slider 6 to move outwards, the slider 6 on the front left side drives the digital hall sensor 125 to move leftwards, the slider 6 drives the supporting rod 7 to swing, the supporting rod 7 swings to be in contact with the supporting frame 5 and then drives the supporting frame 5 to move upwards, so that after the supporting plate 101 moves upwards to be in contact with the wall surface of the tunnel, the supporting plate 101 supports the wall surface of the tunnel, the digital hall sensor 125 moves leftwards to be close to the strong magnet 126, and 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 dual-shaft speed reducing motor 124 to stop operating, after the tunnel operation is completed, when the distance of the fixing mechanism 13 reaches the second preset value of the fixing mechanism 13, so that the control module controls the operation of the dual-shaft speed reducing motor 124, the output shaft of the dual-shaft speed reducing motor 124 drives the screw rod 123 to rotate reversely, the screw rod 123 drives the second connecting plate 121 to move inwards, the second connecting plate 121 drives the slider 6 to move inwards, the slider 6 on the front left side drives the digital hall sensor 125 to move rightwards, the slider 6 drives the supporting rod 7 to swing reversely, the supporting rod 7 drives the first limiting block 8 and the supporting frame 5 to move downwards, the digital hall sensor 125 moves rightwards to keep away from the strong magnet 126, and when the magnetic force emitted by the strong magnet 126 is smaller than the preset value of the digital hall sensor 125, the control module controls the dual-shaft speed reducing motor 124 to stop working.

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 that 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 backwards, the telescopic rod of the third electric push rod 138 extends forwards, 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 outwards, the second limit block 134 drives the second telescopic rod 132 to extend, the second spring 133 is stretched, the second limit block 134 fixes the support rod 7 after moving outwards to contact with the support rod 7, and the support rod 7 is prevented from swinging during tunnel operation to cause the position deviation of the support plate 101, when the distance between the second limiting block 134 and the second distance sensor 137 at the rear side 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, 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 shortens forwards, the telescopic rod of the third electric push rod 138 shortens backwards, the telescopic rod of the second electric push rod 135 and the telescopic rod of the third electric push rod 138 drive the second limiting block 134 to move inwards, the second limiting block 134 drives the second telescopic rod 132 to contract, the second spring 133 resets, the second limiting block 134 moves inwards to be away from the support rod 7, when the distance between the second limiting block 134 at the rear side and the second distance sensor 137 reaches the second preset value of the second distance sensor 137, so that the control module controls the second electric push rod 135 and the third electric push rod 138 to stop working.

Stone and groundwater in the tunnel can drop on a backplate 101, stone and groundwater can drop on sieve 142 along a backplate 101, sieve 142 sieves stone and groundwater, make the stone remain on sieve 142, groundwater drops in water drainage tank 141 through sieve 142, groundwater flows through water drainage tank 141 and honeycomb duct 143 and falls subaerial, thereby prevent that the stone from plugging up water drainage tank 141, receive the influence of stone self weight, thereby drive sieve 142 downstream, sieve 142 drives the shrink of third telescopic link 144, third spring 145 is compressed, tunnel operation accomplishes the back, the user clears up the stone on the sieve 142, the stone breaks away from behind sieve 142, third spring 145 resets, thereby drive sieve 142 upward movement, sieve 142 drives the extension of third telescopic link 144.

When the sieve plate 142 moves downwards, after the left sieve plate 142 moves downwards to contact with the second pressure sensor 159, and 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 152 to emit light, and at the same time, the control module controls the telescopic rod of the fifth electric push rod 158 to extend upwards for two seconds and then close, the telescopic rod of the fifth electric push rod 158 drives the left top block 155 to move upwards, and after the left top block 155 moves upwards to contact with the left sieve plate 142, the left sieve plate 142 is driven to move upwards, so that the left sieve plate 142 conveys stones upwards, a 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 downwards for two seconds and then close, meanwhile, the control module controls the first indicator light 152 to stop emitting light, the telescopic rod of the fifth electric push rod 158 drives the top block 155 on the left side to move downwards to the original position, when the sieve plate 142 on the right side moves downwards to be in contact with the first pressure sensor 157, and when the pressure generated by the sieve plate 142 on the right side reaches the preset value of the first pressure sensor 157, the control module controls the second indicator light 153 to emit light, meanwhile, the control module controls the telescopic rod of the fourth electric push rod 156 to extend upwards for two seconds and then close, the telescopic rod of the fourth electric push rod 156 drives the top block 155 on the right side to move upwards, the top block 155 on the right side moves upwards to be in contact with the sieve plate 142 on the right side, so that the sieve plate 142 on the right side is driven to move upwards, the sieve plate 142 on the right side is driven to upwards convey stones, and a user can clean the stones on the sieve plate 142 on the right side, after the stone is cleaned, the user presses the second contact switch 151, so that the telescopic rod of the fourth electric push rod 156 is controlled by the control module to be closed after being shortened for two seconds, meanwhile, the second indicator lamp 153 is controlled by the control module to stop emitting light, and the telescopic rod of the fourth electric push rod 156 drives the top block 155 on the right side to move downwards to the recovery position.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.