CN221297997U - Monitoring and early warning device for support deflection of subway foundation pit - Google Patents
Monitoring and early warning device for support deflection of subway foundation pit Download PDFInfo
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- CN221297997U CN221297997U CN202323329713.6U CN202323329713U CN221297997U CN 221297997 U CN221297997 U CN 221297997U CN 202323329713 U CN202323329713 U CN 202323329713U CN 221297997 U CN221297997 U CN 221297997U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 230000008093 supporting effect Effects 0.000 claims abstract description 28
- 230000006698 induction Effects 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of building tools, in particular to a monitoring and early warning device for supporting deflection of a subway foundation pit, which comprises a chassis, wherein chassis screws are fixedly connected to the upper end of the chassis in a downward penetrating manner and used for being fixed with the ground, two stand columns are symmetrically and fixedly connected to the upper end of the chassis, three side plate springs are uniformly and fixedly connected to the upper ends of the stand columns, a left side plate and a right side plate are respectively and fixedly connected to the upper ends of the side plate springs on the two sides, a deflection alarm device is fixedly connected between the left side plate and the right side plate, when a support rail is deflected left and deflected right, a left induction column and a right induction column are enabled to be contacted with deflection induction elements which are symmetrical on two sides of deflection induction element support columns in the center of the two fixed columns, so that signals are transmitted to two warning lamps on the upper end of a top plate to give lamplight warning, when the support rail is deflected left, the warning lamps on the left side of the top plate flicker, and the warning lamps on the right side of the top plate flicker when the support rail is deflected right. Has the advantages of simple structure, high environmental adaptability, portability and high accuracy.
Description
Technical Field
The utility model relates to the field of building monitoring, in particular to a monitoring and early warning device for supporting deviation of a subway foundation pit.
Background
Along with the needs of urban construction, subway engineering is being built vigorously, subway construction is often required to excavate foundation pits in densely populated urban areas, excavation and support of deep foundation pits in the subway field are important points of great attention and research in the civil engineering field, in the process of deep foundation pit excavation, the effect of pit wall pressure is used for generating larger displacement deformation into pits, hidden danger is caused for safety of foundation pit engineering and surrounding structures, and therefore periodic safety monitoring of foundation pit states is particularly important. The traditional temporary subway foundation pit supporting deviation alarm device is generally composed of a plurality of components, including a sensor, a signal transmission system, monitoring equipment, interface equipment and the like, so that the whole device is large in size and weight and inconvenient to carry and move, and inconvenience is caused when the device is required to be frequently transferred or used in different workplaces; moreover, the parts are complex and difficult to maintain, any part fails, and a professional technician is required to maintain and replace the parts, and even the maintenance is likely to be stopped, so that the production downtime and the maintenance cost are increased; because the equipment is highly refined, it is difficult to work properly in harsh environments.
CN211527323U discloses a displacement monitoring device for foundation pit support, comprising a base plate, a horizontal adjusting mechanism and an electronic laser theodolite; the side surfaces at the left end and the right end of the bottom plate are rotationally connected with the bottoms of the side surfaces of the two folding boxes through connecting rotating shafts, the interiors of the two folding boxes are hollow, two adjusting screw rods are arranged on the side surfaces of the upper ends of the two folding boxes, one ends of the two adjusting screw rods penetrate through the side surfaces of the upper ends of the folding boxes and extend to the interiors of the folding boxes, and supporting feet are arranged at the other ends of the two adjusting screw rods; the horizontal adjusting mechanism comprises a horizontal plate, horizontal screws and a circular handle, wherein the upper ends of the four horizontal screws penetrate through screw holes on the lower surface of the bottom plate to be rotationally connected with the lower surface of the horizontal plate, and the lower ends of the four horizontal screws are respectively provided with the circular handle; the utility model is convenient to carry, and the height of the surveying and mapping device can be adjusted according to the height of a surveyor. However, the device is manually adjusted, which is labor-intensive and labor-intensive; and the device is fixed only by the supporting feet at the bottom, so that the stability is poor.
CN211171999U discloses a foundation pit supporting device with displacement measurement alarm function, including two stands, the bottom fixedly connected with reinforcing apparatus of two stands, a stand sliding connection has two spinal branch vaulting poles, the terminal fixedly connected with backup pad of bracing piece, the equal fixedly connected with dog in middle part of every bracing piece, the one end fixedly connected with stopper that the bracing piece is close to the backup pad, the lateral wall fixedly connected with damping spring of stopper, damping spring cup joints with the bracing piece, the stopper passes through damping spring and stand fixed connection, fixedly connected with strutting arrangement on another stand, the top of the stand of installing strutting arrangement is provided with the alarm, have micro-gap switch in the strutting arrangement, micro-gap switch and alarm electric connection, the bracing piece is in motion in-process and micro-gap switch contact or separation, support the foundation pit through strutting arrangement, when the earthwork takes place the skew, report to the police automatically, reduce the incident emergence, satisfy the purpose of user demand, but the device is practical not strong, sensitivity is relatively poor.
CN216115739U discloses an automatic alarm device for monitoring horizontal displacement of foundation pit support, which comprises a horizontal rod, a fixed anchor rod, a fixed clamp, a first slide block, a second slide block, an alarm and a battery; the first sliding block and the second sliding block are slidably mounted on the horizontal rod, the fixing anchor rod is mounted at one end of the horizontal rod, the fixing clamp is mounted at the bottom of the second sliding block, the battery and the alarm are mounted on the first sliding block and/or the second sliding block, the first sliding block is connected with one pole of the alarm through a wire, the second sliding block is connected with one pole of the battery through a wire, and the other pole of the battery is connected with the other pole of the alarm through a wire. The device needs to realize an alarm function by means of an external power supply, and has low adaptability to severe environments.
CN218329900U relates to a foundation pit supporting deviation monitoring device, which comprises a base, and is the main supporting part of this device, and the motor, it is installed at the inside both ends of base, and the output of motor is connected with initiative pivot, and the one end of initiative pivot is connected with initiative conical gear, and the internal connection of gear box has driven pivot, and first driven conical gear all connects the both ends at driven pivot. According to the utility model, the motor, the driving rotating shaft, the driven rotating shaft and the driving bevel gear are arranged, the driving rotating shaft at the output end is driven by the motor to rotate, and then the driving bevel gear at one end is driven to rotate, so that the first driven bevel gears at the engaged ends at the two ends of the driving bevel gear rotate, and then the driven rotating shaft is driven to rotate, and meanwhile, the second driven bevel gear at the engaged ends rotates along with the rotation, so that the threaded rod at the top of the driving bevel gear rotates, and the lifting rod moves up and down. The structure has more linkage parts and reduces the overall sensitivity.
CN108917536B discloses a deep foundation pit horizontal displacement monitoring alarm device and an operation method thereof, the deep foundation pit horizontal displacement monitoring alarm device comprises a display device and an alarm device, the display device comprises a PVC pipe, a PVC pipe support and a level meter, the PVC pipe is inserted on the PVC pipe support, the level meter is installed in clamping grooves symmetrically formed in two sides of the PVC pipe, the alarm device comprises an alarm, a power supply, reinforcing steel bars and steel balls, the reinforcing steel bars are embedded in supporting and crown beams, one end of each reinforcing steel bar extends to the inside of the level meter, the steel balls are placed in small holes formed in the inside of the level meter, the steel balls are connected with a power supply for supplying power to the alarm through wires penetrating through one end of the level meter, the power supply is connected with the alarm through wires, the alarm is connected with the reinforcing steel bars through another wire, the distance between the steel balls and the reinforcing steel bars is equal to an alarm value of 30mm, when the displacement of the supporting and the crown beams reaches the alarm value of 30mm, the steel balls roll for 30mm and are contacted with the reinforcing steel bars, the alarm lines are connected, currents are generated, the alarm gives out alarm sounds to remind construction operators, and labor workers can be saved, and the safety of the foundation pit is increased. However, the device does not have a high degree of certainty about the direction of the offset.
Disclosure of utility model
Aiming at the problems that the support deviation alarm device for the subway foundation pit in the prior art is inconvenient to carry, complex in parts and difficult to maintain, cannot adapt to severe environments and the like, the utility model aims to provide the support deviation monitoring and early warning device for the subway foundation pit.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a face subway foundation ditch support skew alarm device, includes the chassis, the chassis upper end runs through fixedly connected with chassis screw downwards, chassis upper end fixedly connected with stand, the stand be provided with two, in the chassis upper end is symmetric distribution, stand upper end fixedly connected with curb plate spring, curb plate spring be provided with three, even fixedly connected with in the stand upper end, both sides curb plate spring upper end respectively fixedly connected with left side board and right side board, left side board reaches fixedly connected with skew alarm device in the middle of the right side board, left side board reaches right side board upper end fixedly connected with roof, roof upper end both sides fixedly connected with warning light, the warning light be provided with two, symmetric fixedly connected with in roof upper end left side and upper end right side, roof upper end central authorities fixedly connected with handle.
Preferably, the left side of the left side plate is fixedly connected with fixing columns in a penetrating mode, two fixing columns are arranged, and the fixing columns are symmetrically and fixedly connected to the left side upper end and the left side lower end of the left side plate.
Preferably, sixteen chassis screws are arranged and distributed circumferentially around the center of the circle at the upper end of the chassis.
Preferably, the right side board left side fixedly connected with right support spring, right support spring is provided with two, symmetrical fixedly connected with right side board left side, right support spring left side fixedly connected with right support column, right support column left side fixedly connected with right response post.
Preferably, the left side board right side central authorities fixedly connected with left support spring, left support spring right side fixedly connected with left support column, left support column right side central authorities fixedly connected with left induction column.
Preferably, the fixing column left side is provided with four fixing column screws, and the fixing column screws are circumferentially distributed around the center of the fixing column left side.
Preferably, an offset sensing element support column is fixedly connected between the two symmetrical fixing columns, offset sensing elements are fixedly connected to the left side and the right side of the offset sensing element support column, two offset sensing elements are arranged, and the two offset sensing elements are symmetrically and fixedly connected to the left center and the right center of the offset sensing element support column.
Preferably, the offset sensing element is electrically connected with the warning lamp.
The utility model has the beneficial effects that:
(1) According to the temporary subway foundation pit supporting deviation alarm device, through the design of the lifting handle at the center of the upper end of the top plate, a user can conveniently and rapidly reach a working site, and the problem that the temporary subway foundation pit supporting deviation alarm device is inconvenient to carry is solved.
(2) According to the deflection alarm device for the subway foundation pit support, disclosed by the utility model, through the design of the deflection alarm device, the deflection alarm device only comprises the left support spring, the left support column, the left induction column, the right support spring, the right support column, the right induction column, the deflection induction element support column and the deflection induction element, so that the structure is simple, and the problem that the components of the subway foundation pit support deflection alarm device are complex and difficult to maintain is solved.
(3) According to the temporary subway foundation pit supporting deviation alarm device, the whole device can be firmly fixed at a working place through the design of the chassis screws penetrating through the lower end of the chassis, so that the stability is enhanced, and the problem that the temporary subway foundation pit supporting deviation alarm device cannot adapt to severe environments is solved.
(4) According to the temporary subway foundation pit supporting deviation alarm device, the deviation sensing element support columns and the deviation sensing elements are used, the chassis and the fixing columns are connected to the ground and the supporting guardrails to form quadrilateral positions, when the supporting guardrails are left or right, the deviation sensing elements can be triggered, the guardrail deviation signals are directly transmitted to the warning lamps, the warning lamps give out bright light to prompt relevant staff, the deformation capacity of the left supporting springs and the right supporting springs is high, and even if the guardrails are slightly deviated to the fixing positions, the deviation signals can be transmitted, so that the sensitivity of the early warning device is greatly improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic structural diagram of a monitoring and early warning device for supporting deflection of a subway foundation pit;
FIG. 2 is a schematic diagram of the offset alarm device 6 of the present utility model;
FIG. 3 is a front view of the present utility model;
FIG. 4 is a left side view of the present utility model;
Fig. 5 is a top view of the present utility model.
In the figure: 1. a chassis; 2. chassis screws; 3. a column; 4. a side plate spring; 5. a right side plate; 6. an offset alarm device; 7. a top plate; 8. a warning light; 9. a handle; 10. fixing the column; 11. fixing the column screw; 12. a left side plate; 61. a right support spring; 62. a right support column; 63. a right sensing column; 64. offset sensing element support columns; 65. an offset sensing element; 66. a left support spring; 67. a left support column; 68. left induction column.
Detailed Description
The utility model is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Examples:
As shown in fig. 1-5, a temporary subway foundation pit supporting deviation alarm device comprises a chassis 1, chassis 1 upper end runs through fixedly connected with chassis screw 2 downwards, chassis 1 upper end fixedly connected with stand 3, stand 3 is provided with two, in chassis 1 upper end is symmetric distribution, stand 3 upper end fixedly connected with curb plate spring 4, curb plate spring 4 quantity is three, even fixedly connected with stand 3 upper end, both sides curb plate spring 4 upper end is fixedly connected with left side board 12 and right side board 5 respectively, left side board 12 with fixedly connected with deviation alarm device 6 in the middle of the right side board 5, left side board 12 with right side board 5 upper end fixedly connected with roof 7, roof 7 upper end both sides fixedly connected with warning light 8, warning light 8 be provided with two, symmetric fixedly connected with roof 7 upper end left side and upper end right side, roof 7 upper end central authorities fixedly connected with handle 9, warning light guardrail 8 of left and right sides is used for respectively in the response support column of the left and right side of deviation sensing device 64 in the deviation sensing support column respectively.
Specifically, the fixed column 10 is fixedly connected with the left side of the left side plate 12 in a penetrating manner, two fixed columns 10 are arranged, the fixed columns 10 are symmetrically and fixedly connected to the upper end and the lower end of the left side plate 12, the fixed columns 10 are fixedly connected between the whole device and the support rail, and the fixed columns play a role in carrying out offset alarm by moving left and right.
Specifically, sixteen chassis screws 2 are arranged, are circumferentially distributed around the center of the circle at the upper end of the chassis 1, and the design of a plurality of chassis screws 2 is used for fixing the whole device on the ground, so that the fixing effect is enhanced, and the supporting effect is also realized.
Specifically, the left side of the right side plate 5 is fixedly connected with right support springs 61, the two right support springs 61 are symmetrically and fixedly connected to the left side of the right side plate 5, the left side of the right support springs 61 is fixedly connected with right support columns 62, the left side of the right support columns 62 is fixedly connected with right sensing columns 63, and the free ends of the right sensing columns 63 face to the offset sensing elements 65; the design of right support spring 61, right sensing post 63 and right support post 62 for prop up the guardrail when the skew to the right, make right sensing post 63 touch offset sensing element 65, make roof top right side warning light 8 flash.
Specifically, the right center of the left side plate 12 is fixedly connected with a left support spring 66, the right side of the left support spring 66 is fixedly connected with a left support column 67, the right center of the left support column 67 is fixedly connected with a left induction column 68, and the free end of the left induction column 68 faces the offset induction element 65; the free ends of the left and right sensing posts face toward the sides of the offset sensing element 65, respectively. The design of left support spring 66, left sensing post 68 and left support post 67 makes the left sensing post 68 touch offset sensing element 65 when the guardrail is offset to the left, makes roof top left warning light 8 flash.
Specifically, the fixed column 10 left side is to run through fixedly connected with fixed column screw 11 about, fixed column 10 left side fixed column screw 11 is provided with four, is circumference around the left side centre of a circle of fixed column 10 and distributes, and the design of fixed column screw 11 makes whole device firmly fixed connection on the guardrail, plays the effect of support and fixed.
Specifically, an offset sensing element support column 64 is fixedly connected between the two symmetrical fixing columns 10, offset sensing elements 65 are fixedly connected to the left side and the right side of the offset sensing element support column 64, two offset sensing elements 65 are arranged and are symmetrically and fixedly connected to the left center and the right center of the offset sensing element support column 64, and the offset sensing elements 65 are designed and connected to the warning lamp 8 above the top plate so as to give an alarm when the guardrail is offset.
Specifically, the offset sensing element 65 is electrically connected with the warning lamp 8, so that when the support guardrail is offset, the left sensing post 68 and the right sensing post 63 can timely contact the offset sensing element 65, and signals are transmitted to the warning lamp 8 more sensitively, so that the warning lamp 8 flashes.
Working principle: when the utility model is used, a user can quickly reach a working place through the lifting handle 9 in the center of the upper end of the top plate 7, then the chassis 1 is fixed on a flat ground through the chassis screw 2, then the whole device can be fixed on the side of a support rail through the fixing column screw 11 on the left side of the fixing column 10, when the support rail is offset left and offset right, the fixing column 10 drives the left support spring 66 and the right support spring 61, so that the left induction column 68 and the right induction column 63 are contacted with the offset induction elements 65 symmetrical on both sides of the offset induction element support column 64 in the center of the two fixing columns 10, signals are transmitted to the two warning lamps 8 on the left side of the upper end and the right side of the top plate 7, so that the warning lamp 8 on the left side of the top plate blinks when the support rail is offset left, and the warning lamp 8 on the right side of the top plate blinks when the support rail is offset right.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a face subway foundation ditch support skew monitoring early warning device, includes chassis (1), its characterized in that: the utility model discloses a warning device, including chassis (1), right side board (5), left side board (12) with fixed connection has skew alarm device (6) in the middle of right side board (5), left side board (12) with right side board (5) upper end fixedly connected with roof (7), roof (7) upper end both sides fixedly connected with warning light (8), warning light (8) are provided with two, symmetrical fixedly connected with in roof (7) upper end left side and upper end right side, roof (7) upper end central authorities fixedly connected with handle (9) respectively, left and right sides guardrail (8) are used for in skew in the skew device of skew sensor of warning device (65) respectively.
2. The monitoring and early warning device for the support deflection of the subway foundation pit is characterized in that: the left side board (12) left side run through fixedly connected with fixed column (10) be used for with the fixed connection of branch guardrail side, fixed column (10) are provided with two, symmetrical fixedly connected in left side board (12) left side upper end and left side lower extreme, skew sensing element support column (64) set up the central authorities at two fixed columns.
3. The monitoring and early warning device for the support deflection of the subway foundation pit is characterized in that: the side plate springs (4) are arranged in three and are uniformly and fixedly connected to the upper ends of the upright posts (3).
4. The monitoring and early warning device for the support deflection of the subway foundation pit is characterized in that: the left side of the right side plate (5) is fixedly connected with a right supporting spring (61), the right side plate (5) is symmetrically and fixedly connected with the left side of the right side plate (5), the left side of the right supporting spring (61) is fixedly connected with a right supporting column (62), the left side of the right supporting column (62) is fixedly connected with a right sensing column (63), the free end of the right sensing column (63) faces an offset sensing element (65), when no offset occurs, the free end of the right sensing column (63) is far away from the offset sensing element (65), and when the right offset occurs, the free end of the right sensing column (63) touches the offset sensing element (65) and gives a warning; the right support springs (61) are provided in two.
5. The monitoring and early warning device for the support deflection of the subway foundation pit is characterized in that: left side board (12) right side central authorities fixedly connected with left support spring (66), left support spring (66) right side fixedly connected with left support column (67), left support column (67) right side central authorities fixedly connected with left induction column (68), the free end orientation skew sensing element (65) of left induction column (68), when not taking place the skew, skew sensing element (65) are kept away from to the free end of left induction column (68), when taking place the left skew, the free end touching skew sensing element (65) of left induction column (68) and send out the warning, left support spring (66) quantity be one.
6. The monitoring and early warning device for the support deflection of the subway foundation pit is characterized in that: offset sensing elements (65) are fixedly connected to the left side and the right side of the offset sensing element supporting columns (64), two offset sensing elements (65) are arranged and symmetrically and fixedly connected to the left side center and the right side center of the offset sensing element supporting columns (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323329713.6U CN221297997U (en) | 2023-12-07 | 2023-12-07 | Monitoring and early warning device for support deflection of subway foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323329713.6U CN221297997U (en) | 2023-12-07 | 2023-12-07 | Monitoring and early warning device for support deflection of subway foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221297997U true CN221297997U (en) | 2024-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323329713.6U Active CN221297997U (en) | 2023-12-07 | 2023-12-07 | Monitoring and early warning device for support deflection of subway foundation pit |
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| Country | Link |
|---|---|
| CN (1) | CN221297997U (en) |
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2023
- 2023-12-07 CN CN202323329713.6U patent/CN221297997U/en active Active
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