A foundation pit protection device applied to highway construction and a protection method thereof

Abstract

The application relates to the technical field of highway foundation pit protection, in particular to a foundation pit protection equipment applied to highway construction and a protection method thereof. The foundation pit protection equipment applied to highway construction comprises a supporting component, the supporting component comprises a supporting frame, the inner side lower end of the supporting frame is fixedly connected with a mounting frame, the lower end of the mounting frame is slidably connected with a connecting sliding block, the lower end of the connecting sliding block is hingedly connected with a supporting rod, and a pushing mechanism is fixedly installed on the inner side of the mounting frame. The pushing mechanism moves the supporting rod outward until the supporting rod closest to the inside of the foundation pit first adheres to the inner wall of the foundation pit. When the detecting element detects that the remaining supporting rods do not adhere to the inner wall of the foundation pit due to the depression of the inner wall of the foundation pit, the adjusting element pushes the supporting rod until the supporting rod adheres to the inner wall of the foundation pit, the adhering area of the supporting rod and the inner wall of the foundation pit is increased, and the supporting effect of the supporting rod is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway foundation pit protection, and in particular to a foundation pit protection device applied to highway construction and a protection method thereof. BACKGROUND

[0002] The foundation pit enclosure structure of highway construction has certain risk, and the deep foundation pit construction technology provides good safety guarantee for the construction of deep foundation pit of highway construction. On the one hand, the deep foundation pit construction technology provides a certain sufficient working surface for the construction of engineering structure, and reduces the influence on the surrounding environment and pipeline;

[0003] The deep foundation pit support type has the characteristics of diversity, and is mainly divided into soil nailing support, internal support support, anchor rod support and slope excavation support. The internal support support is divided into two kinds, one is steel structure, and the other is concrete structure. There is a certain difference between steel structure and concrete structure in structure and deformation, and selection should be made according to the actual situation in application, such as selecting concrete structure for high rigidity requirement;

[0004] Some invention patents related to the technical field of building foundation pit are disclosed in the prior art. The Chinese patent with application number 202110316124.0 discloses a foundation pit support device and a foundation pit support method, which comprises support piles arranged in series and parallel, and reinforcing members arranged between adjacent two support piles. The reinforcing member comprises at least one blocking plate, and the two ends of the blocking plate are connected with the adjacent two support piles respectively. The blocking plate comprises an abutting plate abutting with the side wall of the foundation pit, a waterproof plate arranged in parallel with the abutting plate, and a support plate arranged between the abutting plate and the waterproof plate. The two end faces of the support plate are connected with the abutting plate and the waterproof plate respectively. The waterproof plate is attached with a film, and the support plate is a honeycomb plate.

[0005] Because the small foundation pit excavated on the highway is generally supported by support rods and support plates, but the inner wall of the excavated foundation pit is mostly uneven, and most of the area of the commonly used support plate may not be attached to the inner wall when it is close to the inner wall of the foundation pit, which affects the supporting effect. The support plate needs to be installed individually to attach to the inner wall as much as possible, and the overall installation is not convenient. When used for different foundation pits, the installation size also needs to be replaced. SUMMARY

[0006] The purpose of the present application is to solve the problem that the inner wall of the foundation pit is mostly uneven in the prior art, and the commonly used support plate may not be attached to the inner wall when it is close to the inner wall of the foundation pit, which affects the supporting effect. A foundation pit protection device applied to highway construction and a protection method thereof are provided.

[0007] To achieve the above object, the technical scheme adopted by the present application is as follows: a foundation pit protection equipment applied to highway construction, which comprises:

[0008] A supporting member, which comprises a supporting frame, and a mounting frame fixedly connected to the inner lower end of the supporting frame;

[0009] A connecting sliding block slidingly connected to the lower end of the mounting frame, and a supporting rod hingedly connected to the lower end of the connecting sliding block;

[0010] A pushing mechanism fixedly installed on the inner side of the mounting frame, which is used to extrude the supporting rod to move outward and maintain the state that the outer surface of the supporting rod is in close contact with the inner wall of the foundation pit;

[0011] An adjusting member arranged on the inner upper end of the supporting rod, which is used to adjust the position of the supporting rod so that the supporting rod is in close contact with the inner wall of the foundation pit when the depth of the inner wall of the foundation pit is different;

[0012] A detection member arranged on the surface of the supporting rod, which comprises a first pressure sensor and a controller;

[0013] The controller is fixedly installed on the front surface of the supporting frame, and the controller is electrically connected with the second pressure sensor and the third pressure sensor through wires;

[0014] During the supporting process, the pushing mechanism moves the supporting rod outward until one of the supporting rods is in close contact with the inner wall of the foundation pit, and when the detection member detects that the remaining supporting rods are not in close contact with the inner wall of the foundation pit due to the concave inner wall of the foundation pit, the adjusting member pushes the supporting rod so that all the supporting rods are in close contact with the inner wall of the foundation pit when the depth of the inner wall of the foundation pit is different.

[0015] Preferably, the pushing mechanism comprises an upper connecting seat fixedly installed on the inner wall of the mounting frame, a screw threadedly connected to the middle position of the connecting seat, a nut threadedly connected to the position where the screw extends out of the connecting seat, and a lower connecting seat rotationally connected to the lower end of the screw;

[0016] The outer surface of the lower connecting seat is fixedly connected with a mounting cavity, the outer side of the mounting cavity is provided with a first connecting rod, the inner side of the first connecting rod is elastically connected with a first guide plate, the outer side of the first guide plate is in close contact with a first extrusion block, and the first extrusion block is fixedly installed on the inner surface of the upper end of the supporting rod;

[0017] The surface of the first extrusion block is provided with a first inclined surface, the surface of the first guide plate is provided with a second inclined surface, and the first inclined surface and the second inclined surface are in close contact.

[0018] Preferably, the adjusting member comprises a second connecting rod, a connecting spring and a first electric push rod, the outer side surface of the second connecting rod is fixedly connected with the first guide plate, the inner side of the first electric push rod is fixedly connected with the mounting cavity, and the connecting spring is fixedly connected between the second connecting rod and the mounting cavity.

[0019] The inside of the supporting rod is provided with a side supporting mechanism for extending the supporting area.

[0020] The side supporting mechanism comprises a mounting chamber which is arranged at the middle position of the inside of the supporting rod, and a jacking rod which is slidably connected in the inside of the mounting chamber, the inner side of the jacking rod is fixedly connected with a reset spring, the outer side of the jacking rod is fixedly connected with a pressing rod, and the end of the reset spring is fixedly connected with the inner wall of the mounting chamber.

[0021] The inside of the supporting rod is slidably connected with a side supporting plate on both sides of the reset spring, the side close to the jacking rod of the side supporting plate is fixedly connected with a second extrusion block, and the side supporting plate and the supporting rod are elastically connected.

[0022] The surface of the second extrusion block is provided with a third inclined surface, the surface of the jacking rod is provided with a fourth inclined surface, and the third inclined surface and the fourth inclined surface are matched.

[0023] Preferably, the inside of the side supporting plate is further provided with an inner supporting member for abutting with the inner wall of the foundation pit, the inner supporting member comprises a mounting groove which is arranged at the edge of the inside of the side supporting plate, and an inner supporting plate which is slidably connected in the inside of the mounting groove, and the inner supporting plate and the inner wall of the mounting groove are elastically connected.

[0024] The upper end and the lower end of the inner supporting plate are respectively provided with a second pressure sensor and a third pressure sensor.

[0025] Preferably, the lower end of the supporting rod is further provided with an elastic supporting member for elastically contacting with the bottom surface of the foundation pit, the elastic supporting member comprises a lower mounting plate, a sliding block which is slidably connected with the lower end surface of the lower mounting plate, an extension rod which is hinged with the lower surface of the sliding block, and an extension supporting member which is fixedly connected with the lower end of the extension rod.

[0026] Preferably, the inside of the elastic supporting member is further provided with an inclination assembly for adjusting the inclination state of the supporting rod, the inclination assembly comprises a supporting rod which is fixedly installed below the lower mounting plate, a second electric push rod which is arranged between the supporting rod and the extension rod, the telescopic end of the second electric push rod is slidably hinged with the supporting rod, and the fixed end of the second electric push rod is fixedly connected with the extension rod.

[0027] On the other hand, the present invention also proposes a protection method for foundation pit protection equipment used in highway construction, comprising the following steps:

[0028] Obtaining first request information, where the first request information is generated when the extrusion force exerted on the detection member reaches a threshold value, where the threshold value is the extrusion force exerted on the detection member when the support rod is tightly attached to the inner wall of the foundation pit;

[0029] generating first control information based on the first request information;

[0030] Sending first control information to the adjusting member to control the adjusting member to maintain its original state;

[0031] obtaining second request information, where the second request information is generated when the squeezing force applied to the detection member does not reach a threshold;

[0032] generating second control information based on the second request information;

[0033] Sending second control information to the regulating element to control the activation of the regulating element;

[0034] acquiring third request information, where the third request information is generated when the second pressure sensor is squeezed and the third pressure sensor is not squeezed;

[0035] generating third control information based on the third request information;

[0036] The third control information is sent to the second electric push rod to control the retraction of the telescopic end of the second electric push rod.

[0037] The specific triggering scheme of the regulating member includes the following steps:

[0038] acquiring pressure information, the pressure information being generated by the detection member being squeezed;

[0039] generating first request information based on the pressure information, wherein the first request information is used to request the controller to control the adjusting member to maintain an original state;

[0040] Acquiring non-touch information, where the non-touch information is generated when the detection member is not squeezed;

[0041] generating second request information based on the non-touch information, wherein the second request information is used to request the controller to control the adjustment member to start;

[0042] Among them, the specific triggering scheme of the second electric push rod includes the following steps

[0043] Obtaining the inclination information of the inner wall of the foundation pit, the inclination information being generated when the second pressure sensor is extruded and the third pressure sensor is not extruded;

[0044] Generating third request information based on the inclination information, the third request information being used for requesting to control the retraction of the telescopic end of the second electric push rod.

[0045] Compared with the prior art, the present application has the following beneficial effects:

[0046] The present application is provided with a pushing mechanism that moves the support rods outward until the support rod closest to the inside of the foundation pit first fits the inner wall of the foundation pit. When the detection member detects that the remaining support rods do not fit the inner wall of the foundation pit due to the concave inner wall of the foundation pit, the adjusting member pushes the support rods so that each of the remaining support rods fits the inner wall of the foundation pit. When the inner wall of the foundation pit is uneven, the support rods can be automatically pushed outward until they fit the inner wall of the foundation pit, increasing the fitting area of the support rods and the inner wall of the foundation pit, which is beneficial to increasing the support effect of the support rods.

[0047] The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0049] Figure 2 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0050] Figure 3 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling. Figure 2 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0051] Figure 4 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0052] Figure 5 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0053] Figure 6 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling. Figure 5 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0054] Figure 7 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0055] Figure 8 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0056] Figure 9 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling. Figure 8 The present application is provided with an inclination mechanism that can automatically adjust when the inner wall of the foundation pit is inclined, so that the support rods can also fit the inner wall of the foundation pit as much as possible when the inner wall of the foundation pit is inclined, which is beneficial to reducing soil falling.

[0057] Figure 10 The installation structure schematic diagram of the second pressure sensor and the third pressure sensor of the application.

[0058] Figure 11 The partial structure sectional view of the application.

[0059] Figure 12 The protection method flow chart of the application.

[0060] Figure 13 The adjustment member triggering method flow chart of the application.

[0061] Figure 14 The second electric push rod triggering method flow chart of the application.

[0062] In the figure: 1, support frame; 2, mounting frame; 201, connecting sliding block; 3, lower connecting seat; 301, upper connecting seat; 302, screw; 303, nut; 304, first connecting rod; 305, mounting cavity; 4, support rod; 401, first pressure sensor; 5, telescopic support; 6, first extrusion block; 601, first guide plate; 602, second connecting rod; 603, connecting spring; 604, first electric push rod; 7, jacking rod; 701, pressing rod; 702, mounting chamber; 703, reset spring; 704, side support plate; 705, second extrusion block; 8, mounting groove; 801, inner support plate; 802, second pressure sensor; 803, third pressure sensor; 804, lower mounting plate; 805, telescopic rod; 806, support rod; 807, second electric push rod; 808, sliding block; 9, controller. DETAILED DESCRIPTION

[0063] The following description is provided to enable any person skilled in the art to practice the application. The preferred embodiments described herein are only examples of the application and various modifications can be made by those skilled in the art.

[0064] As Figures 1 to 11 shown in a kind of application in the road construction foundation pit protection equipment, application in the road construction foundation pit protection equipment includes:

[0065] Supporting member, supporting member includes support frame 1. The inner side lower end of support frame 1 is fixedly connected with mounting frame 2;

[0066] The lower end of mounting frame 2 is slidably connected with connecting sliding block 201, and the lower end of connecting sliding block 201 is hingedly connected with support rod 4;

[0067] Pushing mechanism, pushing mechanism is fixedly installed in the inner side of mounting frame 2, and pushing mechanism is used to extrude support rod 4 to move to the outside, and makes the outside surface of support rod 4 maintain and the state of being pasted with the foundation pit inner wall.

[0068] An adjusting piece is arranged on the inner side upper end of the supporting rod 4, and is used for adjusting the position of the supporting rod 4, so that the supporting rod 4 is attached to the inner wall of the foundation pit when the inner wall of the foundation pit is uneven in depth;

[0069] A detection piece is arranged on the surface of the supporting rod 4, and the detection piece comprises a first pressure sensor 401 and a controller 9;

[0070] The controller 9 is fixedly installed on the front surface of the support frame 1, and the controller 9 is electrically connected with the second pressure sensor 802 and the third pressure sensor 803 through wires;

[0071] In the prior art, the small foundation pits excavated on the road are generally supported by supporting rods and supporting plates. However, the inner walls of the excavated foundation pits are mostly uneven. When the commonly used supporting plates are close to the inner walls of the foundation pits, most of the areas of the supporting plates may not be attached to the inner walls due to the unevenness of the inner walls, which affects the supporting effect. The supporting plates need to be individually installed in order to be attached to the inner walls as much as possible. The overall installation is inconvenient, and the installation size needs to be replaced when different foundation pits are used;

[0072] The technical solution can solve the above problems, and the specific working mode is as follows:

[0073] In the use process, the supporting rod 4 is inserted into the inside of the foundation pit and fixed by being supported on the road surface at the edge of the foundation pit through the support frame 1. It should be noted that the supporting rod 4 is in a contracted state in the initial state and does not affect the insertion into the inside of the foundation pit.

[0074] In the supporting process, the supporting rod 4 is moved outward by the pushing mechanism until the supporting rod 4 closest to the inside of the foundation pit is first attached to the inner wall of the foundation pit. When the detection piece detects that the remaining supporting rods 4 are not attached to the inner wall of the foundation pit due to the depression of the inner wall of the foundation pit, the adjusting piece pushes the supporting rod 4 so that each of the remaining supporting rods 4 is attached to the inner wall of the foundation pit. When the inner wall of the foundation pit is uneven, the supporting rod 4 can be automatically pushed outward until it is attached to the inner wall of the foundation pit, thereby increasing the attachment area of the supporting rod 4 and the inner wall of the foundation pit, which is beneficial to increasing the supporting effect of the supporting rod 4.

[0075] As a further embodiment of the present application, the pushing mechanism comprises an upper connecting seat 301 fixedly installed on the inner wall upper end of the mounting frame 2, a screw rod 302 threadedly connected at the middle position of the upper connecting seat 301, a nut 303 threadedly connected at the position where the screw rod 302 extends out of the upper connecting seat 301, and a lower connecting seat 3 rotationally connected to the lower end of the screw rod 302.

[0076] The outer side surface of the lower connecting base 3 is fixedly connected with a mounting cavity 305, the outer side surface of the mounting cavity 305 is provided with a first connecting rod 304, the inner side of the first connecting rod 304 is elastically connected with a first guide plate 601, the outer side of the first guide plate 601 is attached with a first extrusion block 6, and the first extrusion block 6 is fixedly installed on the inner side surface of the upper end of the supporting rod 4;

[0077] The surface of the first extrusion block 6 is provided with a first inclined surface, the surface of the first guide plate 601 is provided with a second inclined surface, and the first inclined surface and the second inclined surface are matched with each other;

[0078] It should be noted that the pushing mechanism is used to move the supporting rod 4 outward, and the specific working mode is as follows:

[0079] In use, first, the nut 303 is loosened to release the limiting, then the screw rod 302 is rotated to drive the upper connecting base 301 and the lower connecting base 3 to move downward, the first guide plate 601 moves downward to drive the first extrusion block 6 and the supporting rod 4 to move outward, until the resistance is felt and the nut 303 cannot be moved, at this time, the supporting rod 4 closest to the inner wall of the foundation pit has been attached to the inner wall, so that the lower connecting base 3 cannot be moved;

[0080] Then the device is powered on, and the detection piece and the controller 9 start to work, in this process, the detection piece on the supporting rod 4 attached to the inner wall of the foundation pit is extruded to generate first request information, and the first request information is sent to the controller 9, the controller 9 generates first control information, and the first control information is sent to the adjusting piece, so that the adjusting piece remains unchanged, and the state of the supporting rod 4 attached to the inner wall is maintained;

[0081] The detection piece on the supporting rod 4 not attached to the inner wall of the foundation pit is not extruded to generate second request information, and the second request information is sent to the controller 9, the controller 9 generates second control information, and the second control information is sent to the adjusting piece, so that the adjusting piece is extended to push the supporting rod 4, the supporting rod 4 is moved again, and the supporting rod 4 is attached to the inner wall of the foundation pit;

[0082] When the upper end of the inner wall of the foundation pit is recessed and the lower end is protruded, in the process that the adjusting piece is extended to push the supporting rod 4 and the supporting rod 4 is moved again to be attached to the inner wall of the foundation pit, because the position pushed by the adjusting piece is the upper end of the supporting rod 4, the supporting rod 4 will be inclined, and the supporting rod 4 can be better attached to the inner wall of the foundation pit.

[0083] As a further embodiment of the present application, the adjusting piece comprises a second connecting rod 602, a connecting spring 603 and a first electric push rod 604, the outer side surface of the second connecting rod 602 is fixedly connected with the first guide plate 601, the inner side of the first electric push rod 604 is fixedly connected with the mounting cavity 305, and the connecting spring 603 is fixedly connected between the second connecting rod 602 and the mounting cavity 305;

[0084] It should be noted that the adjusting piece is used to adjust the position of the supporting rod 4, and the specific working mode is as follows:

[0085] Under the elastic force of the connecting spring 603, the second connecting rod 602 and the first guide plate 601 can be pushed, so that the second connecting rod 602 and the first guide plate 601 have a tendency to move towards the side close to the first extrusion block 6;

[0086] So that the first extrusion block 6 has a tendency to move towards the side close to the inner wall of the foundation pit, when the supporting rod 4 is inserted into the inside of the foundation pit, under the elastic pushing of the connecting spring 603, the supporting rod 4 is pushed to be attached to the inner wall of the foundation pit;

[0087] When the supporting rod 4 contacts with the convex position, the connecting spring 603 is in a compressed state, and at this time the second connecting rod 602 is in close contact with the end of the first electric push rod 604;

[0088] When the supporting rod 4 contacts with the concave position, the connecting spring 603 is in an elongated state, and at this time the supporting rod 4 is in an elastic supporting state with the inner wall of the foundation pit;

[0089] The detection piece detects whether the supporting rod 4 is attached to the inner wall of the foundation pit, and when it is detected that the supporting rod 4 is not completely attached to the inner wall of the foundation pit, the controller 9 starts the first electric push rod 604 to push the supporting rod 4 at the corresponding position until the supporting rod 4 at the corresponding position is tightly attached to the inner wall

[0090] As a further embodiment of the present application, the inside of the supporting rod 4 is provided with a side supporting mechanism, which is used to extend the supporting area;

[0091] The side supporting mechanism comprises a mounting chamber 702, which is arranged at the middle position inside the supporting rod 4, and a top rod 7 is slidably connected inside the mounting chamber 702, a reset spring 703 is fixedly connected to the inner side of the top rod 7, a pressing rod 701 is fixedly connected to the outer side of the top rod 7, and the end of the reset spring 703 is fixedly connected to the inner wall of the mounting chamber 702;

[0092] The inside of the supporting rod 4 is slidably connected with a side supporting plate 704 on both sides of the reset spring 703, a second extrusion block 705 is fixedly connected to the side close to the top rod 7 of the side supporting plate 704, and the side supporting plate 704 is elastically connected with the supporting rod 4;

[0093] The surface of the second extrusion block 705 is provided with a third inclined surface, the surface of the top rod 7 is provided with a fourth inclined surface, and the third inclined surface and the fourth inclined surface are matched;

[0094] In the prior art, there is a certain gap between adjacent supporting rods 4, so that the soil between adjacent supporting rods 4 is unstable and there is a risk of sliding down;

[0095] The technical solution can solve the above problems, and the specific working mode is as follows:

[0096] After the supporting rod 4 and the inner wall of the foundation pit are attached, the top rod 7 will be extruded inward by the inside of the foundation pit, and the pressing rod 701 will extend into the inner wall of the foundation pit, which is beneficial to maintain stability;

[0097] During the inward movement of the top rod 7, the top rod 7 will extrude the second extrusion blocks 705 on both sides, thereby causing the side support plates 704 on both sides to extend outward, and the extended side support plates 704 will fill the gaps between the top rods 7, increasing the contact area with the inner wall of the foundation pit, which is beneficial to reduce the falling of the soil;

[0098] It should be noted that the side support plate 704 is elastically connected with the supporting rod 4, and after the top rod 7 is reset, the side support plate 704 is also reset.

[0099] As a further embodiment of the present application, the inside of the side support plate 704 is further provided with an inner support element for attaching to the inner wall of the foundation pit, the inner support element comprising a mounting groove 8, the mounting groove 8 being provided near the edge of the inside of the side support plate 704, and the inside of the mounting groove 8 being slidably connected with an inner support plate 801, the inner support plate 801 being elastically connected with the inner wall of the mounting groove 8;

[0100] The upper end and the lower end of the inner support plate 801 are respectively provided with a second pressure sensor 802 and a third pressure sensor 803;

[0101] It should be noted that the inner support element is used to pop out towards the inner wall of the foundation pit after the side support plate 704 extends out, and attach to the inner wall of the foundation pit, which is beneficial to closely contact with the surface of the foundation pit, and also beneficial to the second pressure sensor 802 and the third pressure sensor 803 on the surface extending out of the mounting groove 8 to detect the inclination of the inner wall of the foundation pit, and the specific working mode is as follows:

[0102] After the side support plate 704 extends out, the inner support plate 801 at the edge loses the limit and is pushed out by the elastic connection force, and is attached to the inner wall of the foundation pit, and after the attachment, the inclination of the inner wall of the foundation pit is detected by the second pressure sensor 802 and the third pressure sensor 803 on the surface;

[0103] It should be noted that the side surface of the inner support plate 801 is a slope, and after the side support plate 704 is reset, the inner support plate 801 will be extruded and contracted back into the inside of the mounting groove 8;

[0104] It should be noted that in the initial state, the second pressure sensor 802 and the third pressure sensor 803 are retracted inside to avoid contact, and after the support rod 4 is inserted into the inside of the foundation pit, the top rod 7 touches the inside of the foundation pit, and then it is popped out, which is beneficial to prolong the accuracy and service life of the second pressure sensor 802 and the third pressure sensor 803.

[0105] As a further embodiment of the application, the lower end of the support rod 4 is further provided with an elastic support, which is used for elastic contact with the bottom surface of the foundation pit, and the elastic support comprises a lower mounting plate 804, the lower end surface of the lower mounting plate 804 is slidably connected with a sliding block 808, the lower surface of the sliding block 808 is hingedly connected with a telescopic rod 805, and the lower end of the telescopic rod 805 is fixedly connected with a telescopic support 5.

[0106] In the prior art, due to the unevenness of the bottom surface of the foundation pit, the installation height of the support rod is also different, which brings inconvenience to installation, and the technical solution can solve the above problems, and the specific working mode is as follows:

[0107] In use, the support frame 1 is fixed by being supported on the road surface at the edge of the foundation pit, and the support rod 4 is inserted into the inside of the foundation pit. Since the road surface is relatively flat relative to the ground of the foundation pit, the step of adjusting the installation height of the support rod 4 is reduced, and the telescopic support 5 at the lower end of the support rod 4 can be elastically telescopic and fit the inside of the foundation pit, thereby increasing stability.

[0108] As a further embodiment of the application, the inside of the elastic support is further provided with an inclination assembly for adjusting the inclination state of the support rod 4, the inclination assembly comprises a support rod 806, the support rod 806 is fixedly installed below the lower mounting plate 804, and a second electric push rod 807 is arranged between the support rod 806 and the telescopic rod 805, the telescopic end of the second electric push rod 807 is slidably hinged with the support rod 806, and the fixed end of the second electric push rod 807 is fixedly connected with the telescopic rod 805.

[0109] In the prior art, since the inner wall of the foundation pit also inclines, it is difficult for the horizontally installed support rod 4 to fit the inner wall of the foundation pit;

[0110] The technical solution can solve the above problems, and the specific working mode is as follows:

[0111] After the inner support plate 801 fits the inner wall of the foundation pit, the second pressure sensor 802 and the third pressure sensor 803 on the surface thereof fit the inner wall of the foundation pit;

[0112] When the second pressure sensor 802 and the third pressure sensor 803 are both pressed, it indicates that the inner wall of the foundation pit is relatively flat, and adjustment is not needed, and the second pressure sensor 802 and the third pressure sensor 803 send signals to the controller 9 to maintain the second electric push rod 807.

[0113] When the second pressure sensor 802 at the upper end is pressed and the third pressure sensor 803 at the lower end is not pressed, it indicates that the upper end of the inner wall of the foundation pit is protruding and the lower end is concave, and the inner support plate 801 needs to be correspondingly inclined, at this time the second pressure sensor 802 generates the third request information, and sends the third request information to the controller 9, the controller 9 generates the third control information, and sends the third control information to the second electric push rod 807, so that the second electric push rod 807 is started, and the telescopic end of the second electric push rod 807 is retracted, driving the support rod 806 and the support rod 4 to be inclined, until the support rod 4 reaches the state that the second pressure sensor 802 and the third pressure sensor 803 are pressed, and the controller 9 controls the second electric push rod 807 to stop moving, maintaining this state;

[0114] The adjustment can be automatically performed when the inner wall of the foundation pit is inclined, so that the support rod 4 can be as close as possible to the inner wall of the foundation pit when the inner wall of the foundation pit is inclined, which is beneficial to reduce the falling of soil.

[0115] On the other hand, the application also provides a protection method of the foundation pit protection equipment applied to highway construction, which is suitable for a foundation pit protection equipment applied to highway construction, and includes the following steps:

[0116] The first request information is obtained, and the first request information is generated when the pressing force received by the detection piece reaches a threshold value, and the threshold value is the pressing force received by the detection piece when the support rod 4 closely adheres to the inner wall of the foundation pit;

[0117] The first control information is generated based on the first request information;

[0118] The first control information is sent to the adjustment piece, so as to control the adjustment piece to remain unchanged;

[0119] The second request information is obtained, and the second request information is generated when the pressing force received by the detection piece does not reach the threshold value;

[0120] The second control information is generated based on the second request information;

[0121] The second control information is sent to the adjustment piece, so as to control the adjustment piece to start;

[0122] The third request information is obtained, and the third request information is generated when the second pressure sensor 802 is pressed and the third pressure sensor 803 is not pressed;

[0123] The third control information is generated based on the third request information;

[0124] The third control information is sent to the second electric push rod 807, so as to control the telescopic end of the second electric push rod 807 to retract.

[0125] The specific triggering scheme of the adjustment piece includes the following steps:

[0126] Obtaining pressure information generated by the detection piece being pressed;

[0127] Generating first request information based on the pressure information, the first request information being used to request the controller 9 to control the adjusting piece to remain unchanged;

[0128] Obtaining non-touch information generated by the detection piece not being pressed;

[0129] Generating second request information based on the non-touch information, the second request information being used to request the controller 9 to control the adjusting piece to start;

[0130] The specific triggering scheme of the second electric push rod 807 includes the following steps

[0131] Obtaining inclination information of the inner wall of the foundation pit, the inclination information being generated by the second pressure sensor 802 being pressed and the third pressure sensor 803 not being pressed;

[0132] Generating third request information based on the inclination information, the third request information being used to request the telescopic end of the second electric push rod 807 to retract

[0133] Working principle of the present application:

[0134] In use, the supporting rod 4 is inserted into the inside of the foundation pit and fixed by being supported on the road surface at the edge of the foundation pit through the support frame 1. It should be noted that the supporting rod 4 is in a retracted state in the initial state and does not affect the insertion into the inside of the foundation pit.

[0135] In the process of supporting, the supporting rod 4 is moved outward by the pushing mechanism until the supporting rod 4 closest to the inside of the foundation pit first abuts against the inner wall of the foundation pit. When the detection piece detects that the remaining supporting rods 4 do not abut against the inner wall of the foundation pit due to the concave inner wall of the foundation pit, the adjusting piece pushes the supporting rod 4 so that each of the remaining supporting rods 4 abuts against the inner wall of the foundation pit. When the inner wall of the foundation pit is uneven, the supporting rod 4 can be automatically pushed to move outward until it abuts against the inner wall of the foundation pit, thereby increasing the abutting area of the supporting rod 4 and the inner wall of the foundation pit and being conducive to increasing the supporting effect of the supporting rod 4.

[0136] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A foundation pit protection device used in highway construction, characterized by: The foundation pit protection equipment used in highway construction includes: A supporting member, the supporting member comprising a supporting frame (1), the inner lower end of the supporting frame (1) being fixedly connected to a mounting frame (2); The lower end of the mounting frame (2) is slidably connected to a connecting slider (201), and the lower end of the connecting slider (201) is hingedly connected to a supporting rod (4); A pushing mechanism, the pushing mechanism being fixedly mounted on the inner side of the mounting frame (2), and the pushing mechanism being used to squeeze the support rod (4) to move outward, and to maintain the outer surface of the support rod (4) in contact with the inner wall of the foundation pit; An adjusting member, the adjusting member being arranged at the inner upper end of the supporting rod (4), and the adjusting member being used to adjust the position of the supporting rod (4), so that the supporting rod (4) and the inner wall of the foundation pit are in contact when the inner wall of the foundation pit is of different depths; A detection member, the detection member being arranged on the surface of the support rod (4), the detection member comprising a first pressure sensor (401) and a controller (9); The controller (9) is fixedly mounted on the front surface of the support frame (1); During the supporting process, the pushing mechanism moves the supporting rods (4) outward until one of the supporting rods (4) is in contact with the inner wall of the foundation pit. When the detection member detects that the remaining supporting rods (4) are not in contact with the inner wall of the foundation pit, the adjusting member pushes the supporting rods (4) so ​​that when the inner wall of the foundation pit is of different depths, all the supporting rods (4) are in contact with the inner wall of the foundation pit. The pushing mechanism comprises an upper connecting seat (301), the upper connecting seat (301) being fixedly mounted on the upper end of the inner wall of the mounting frame (2), a screw rod (302) being threadedly connected at a middle position of the upper connecting seat (301), a nut (303) being threadedly connected at a position where the screw rod (302) extends out of the upper connecting seat (301), and the lower end of the screw rod (302) being rotatably connected to the lower connecting seat (3); The outer surface of the lower connecting seat (3) is fixedly connected to a mounting cavity (305), the outer side of the mounting cavity (305) is provided with a first connecting rod (304), the inner side of the first connecting rod (304) is elastically connected to a first guide plate (601), the outer side of the first guide plate (601) is affixed to a first extrusion block (6), and the first extrusion block (6) is fixedly mounted on the upper end of the inner surface of the support rod (4); The surface of the first extrusion block (6) is provided with a first inclined surface, and the surface of the first guide plate (601) is provided with a second inclined surface, and the first inclined surface and the second inclined surface are consistent with each other.

2. The foundation pit protection equipment used in highway construction according to claim 1 is characterized in that: The adjusting member comprises a second connecting rod (602), a connecting spring (603) and a first electric push rod (604); the outer surface of the second connecting rod (602) is fixedly connected to the first guide plate (601); the inner side of the first electric push rod (604) is fixedly connected to the installation cavity (305); and a connecting spring (603) is fixedly connected between the second connecting rod (602) and the installation cavity (305).

3. The foundation pit protection equipment used in highway construction according to claim 2 is characterized in that: A side support mechanism is provided inside the support rod (4), and the side support mechanism is used to extend the support area; The side support mechanism comprises an installation chamber (702), the installation chamber (702) being opened at a middle position inside the support rod (4), and a push rod (7) being slidably connected inside the installation chamber (702), a return spring (703) being fixedly connected to the inner side of the push rod (7), and a pressure rod (701) being fixedly connected to the outer side of the push rod (7), and a distal end of the return spring (703) being fixedly connected to the inner wall of the installation chamber (702); The support rod (4) is internally provided with side support plates (704) slidably connected on both sides of the return spring (703); a second extrusion block (705) is fixedly connected to one side of the side support plate (704) close to the top rod (7); and the side support plate (704) and the support rod (4) are elastically connected; The surface of the second extrusion block (705) is provided with a third inclined surface, and the surface of the push rod (7) is provided with a fourth inclined surface, and the third inclined surface and the fourth inclined surface are consistent with each other.

4. The foundation pit protection equipment used in highway construction according to claim 3 is characterized in that: An inner supporting member for fitting with the inner wall of the foundation pit is further provided inside the side supporting plate (704), the inner supporting member comprising a mounting groove (8), the mounting groove (8) being provided inside the side supporting plate (704) near the edge, the inner supporting plate (801) being slidably connected inside the mounting groove (8), and the inner supporting plate (801) being elastically connected to the inner wall of the mounting groove (8); A second pressure sensor (802) and a third pressure sensor (803) are respectively installed at the upper end and the lower end of the inner supporting plate (801).

5. The foundation pit protection equipment used in highway construction according to claim 4 is characterized in that: The lower end of the support rod (4) is further provided with an elastic support member, the elastic support member being used for elastically contacting the bottom surface of the foundation pit, the elastic support member comprising a lower mounting plate (804), the lower end surface of the lower mounting plate (804) being slidably connected to a sliding block (808), the lower surface of the sliding block (808) being hinged to a telescopic rod (805), the lower end of the telescopic rod (805) being fixedly connected to the telescopic support member (5).

6. The foundation pit protection equipment used in highway construction according to claim 5, characterized in that: A tilting assembly for adjusting the tilting state of the support rod (4) is further provided inside the elastic support member, the tilting assembly comprising a support rod (806), the support rod (806) being fixedly mounted below the lower mounting plate (804), and a second electric push rod (807) being provided between the support rod (806) and the telescopic rod (805), the telescopic end of the second electric push rod (807) being slidably hinged to the support rod (806), and the fixed end of the second electric push rod (807) being fixedly connected to the telescopic rod (805).

7. A protection method for foundation pit protection equipment used in highway construction, applicable to the foundation pit protection equipment used in highway construction according to claim 6, characterized in that: The following steps are involved: obtaining first request information, where the first request information is generated when the squeezing force exerted on the detection member reaches a threshold; generating first control information based on the first request information; Sending first control information to the adjusting member to control the adjusting member to maintain its original state; obtaining second request information, where the second request information is generated when the squeezing force applied to the detection member does not reach a threshold; generating second control information based on the second request information; Sending second control information to the regulating element to control the activation of the regulating element; Acquiring third request information, the third request information being generated when the second pressure sensor (802) is squeezed and the third pressure sensor (803) is not squeezed; generating third control information based on the third request information; The third control information is sent to the second electric push rod (807) to control the retraction of the telescopic end of the second electric push rod (807).

8. A protection method for foundation pit protection equipment used in highway construction according to claim 7, characterized in that: The specific triggering scheme of the regulating member includes the following steps: acquiring pressure information, the pressure information being generated by the detection member being squeezed; generating first request information based on the pressure information, wherein the first request information is used to request the controller (9) to control the regulating member to maintain an original state; Acquiring non-touch information, where the non-touch information is generated when the detection member is not squeezed; Based on the non-touch information, second request information is generated, and the second request information is used to request the controller (9) to control the adjustment member to start.

9. A protection method for foundation pit protection equipment used in highway construction according to claim 7, characterized in that: The specific triggering scheme of the second electric push rod (807) includes the following steps: Obtaining inclination information of the inner wall of the foundation pit, the inclination information being generated when the second pressure sensor (802) is squeezed and the third pressure sensor (803) is not squeezed; A third request message is generated based on the tilt information, and the third request message is used to request control of the retraction of the telescopic end of the second electric push rod (807).

Images