Hanging type inner supporting device for foundation pit engineering and construction method of hanging type inner supporting device

Abstract

The invention discloses a hanging type inner supporting device for foundation pit engineering and a construction method of the hanging type inner supporting device, solves the problem that in the prior art, supporting force on the upper side of a foundation pit steel plate is insufficient, and has the beneficial effect of stably supporting a supporting plate, and according to the specific scheme, the hanging type inner supporting device for the foundation pit engineering comprises the supporting plate; the supporting plate is inserted into the bottom surface of the foundation pit close to the wall of the foundation pit; the lower supporting assembly is arranged between the bottom face of the foundation pit and the supporting plate so as to support the supporting plate. The lower supporting assembly is arranged on the side, away from the pit wall of the foundation pit, of the supporting plate. The upper supporting assembly and the lower supporting assembly are arranged on the same side of the supporting plate. The side supporting mechanism comprises a fixed assembly and a movable assembly, the fixed assembly is fixed to the bottom face of the foundation pit, the fixed assembly and the supporting plate are arranged at an interval, the movable assembly can be hung, the movable assembly is connected with the upper supporting assembly so that the supporting plate can be supported through the side supporting mechanism, and the height of the movable assembly relative to the fixed assembly can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit internal support, in particular to a hanging type internal support device of a foundation pit project and a construction method thereof. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The foundation pit project is a retaining project taken for excavating underground space. In order to ensure the stability of the foundation pit project, steel plates can be set on the side walls of the foundation pit as retaining components. The steel plates are used as vertical supports for the walls of the foundation pit, and then matched with oblique and horizontal support components to form a foundation pit support system to avoid excessive deformation or instability and collapse of the side walls of the foundation pit.

[0004] The steel rods supporting the steel plate are set obliquely, so the steel rods play an important role in supporting the pit wall. When the width of the foundation pit is narrow and the depth is deep, it is generally necessary to set up multiple anchor rods, from the anchor rods close to the bottom of the foundation pit to the steel rods far away from the bottom of the foundation pit. The larger the inclination angle between the anchor rods and the bottom of the foundation pit, the weaker the supporting force of the anchor rods on the steel plate will be, thereby making the restricting force of the top of the steel plate on the inner wall of the foundation pit smaller, which will cause the top of the steel plate to bend when the soil at the top of the foundation pit is deformed too much and collapses, and the top of the steel plate will lose its supporting function.

[0005] In addition, there are certain difficulties in installing the oblique anchor rods on the top side, and workers are required to stand in the lifting frame of the lifting equipment to install the oblique steel rods. When the foundation pit space is narrow, the anchor rod construction equipment cannot be put into place for construction. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a hanging internal support device for foundation pit engineering to ensure the support effect on the support plate.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A hanging type inner support device for foundation pit engineering, comprising:

[0009] A support plate is inserted into the bottom surface of the foundation pit close to the wall of the foundation pit;

[0010] A lower support assembly is arranged between the bottom surface of the foundation pit and the support plate to support the support plate, and the lower support assembly is arranged on a side of the support plate away from the wall of the foundation pit;

[0011] An upper support assembly, wherein the upper support assembly and the lower support assembly are arranged on the same side of the support plate;

[0012] The side support mechanism includes a fixed component and a movable component. The fixed component is fixed at the bottom of the foundation pit. The fixed component and the support plate are set at a distance. The movable component can be suspended. The movable component is connected to the upper support component to support the support plate through the side support mechanism. The height of the movable component relative to the fixed component is adjustable, and the movable component can be locked relative to the fixed component.

[0013] In the above-mentioned hanging internal support device for foundation pit engineering, the length of the upper support assembly is adjustable to adjust the support angle of the upper support assembly relative to the support plate;

[0014] The distance between the fixing assembly and the support plate is greater than the distance between the bottom side of the lower support assembly and the support plate.

[0015] In a hanging internal support device for foundation pit engineering as described above, the movable component is bent, and a lifting ring is provided on the top side of the movable component to facilitate the connection between the movable component and the fixed component and to facilitate the adjustment of the height of the movable component relative to the fixed component, and the top side of the movable component is connected to the upper support component.

[0016] A hanging internal support device for foundation pit engineering as described above, wherein the moving assembly comprises a fixed plate, the fixed plate is provided with the lifting ring, the fixed plate is connected to the moving rod, the width of the fixed plate is greater than the width of the moving rod, the moving rod is connected to the fixed assembly, and the moving rod and the fixed assembly are plugged in to achieve adjustment of the height of the moving rod;

[0017] The fixing plate can be telescopically arranged so that the fixing plate can be abutted against the supporting plate. An insertion rod is arranged on the side of the fixing plate facing the supporting plate. The insertion rod can be inserted into the opening of the supporting plate. Further force is provided to the supporting plate through the abutment between the fixing plate and the side of the supporting plate away from the pit wall.

[0018] A hanging internal support device for foundation pit engineering as described above, wherein the upper support assembly comprises a hinged rod and an adjusting rod, the adjusting rod and the hinged rod are connected by plugging, the extension length of the adjusting rod relative to the hinged rod is adjustable, and the adjusting rod and the hinged rod are detachably connected by a first locking member;

[0019] The first locking member is a U-shaped screw, which passes through the hinge rod and the adjusting rod and is then locked by a first nut.

[0020] In the suspended internal support device for foundation pit engineering as described above, one end of the hinged rod is hingedly connected to the support plate or the movable assembly, and one end of the adjustment rod is hingedly connected to the movable assembly or the support plate.

[0021] A hanging internal support device for a foundation pit project as described above, wherein the fixed assembly comprises a fixed column, the bottom of the fixed column is connected to the bottom surface of the foundation pit, the fixed column is hollow, one side of the movable assembly is inserted into the hollow part of the fixed column, and a second locking member is arranged between the movable assembly and the fixed column;

[0022] The second locking member includes an insertion screw, one end of which passes through the fixed column and the moving component and is locked by a second nut.

[0023] In the hanging internal support device for foundation pit engineering as described above, multiple layers of climbing rods are arranged on the side of the fixed column, and the spacing between two adjacent layers of climbing rods is arranged to facilitate the installation of the second locking member, and the operator climbs through the climbing rods to facilitate the installation of the second locking member;

[0024] An insertion claw is arranged at the bottom of the fixing assembly to facilitate the fixing column to be inserted into the bottom surface of the foundation pit.

[0025] In the suspended internal support device for foundation pit engineering as described above, the lower support assembly includes an oblique support rod, the support plate is provided with an articulated block, and both ends of the oblique support rod are respectively hingedly connected to the articulated blocks on the corresponding sides.

[0026] In a second aspect, the present invention further discloses a construction method of a hanging internal support device for foundation pit engineering, comprising the following contents:

[0027] Install the support plate and insert it into the bottom of the foundation pit close to the wall of the foundation pit;

[0028] A lower support assembly is arranged on one side of the support plate away from the foundation pit wall, one end of the lower support assembly is connected to the bottom surface of the foundation pit, and the other end of the lower support assembly is connected to the support plate;

[0029] Connect one side of the upper support assembly to the moving assembly;

[0030] A fixed component of the side support mechanism is arranged at the bottom surface of the foundation pit, the fixed component is arranged at a distance from the support plate, and the movable component is hung to facilitate the connection between the movable component and the fixed component;

[0031] Connect the other side of the upper support assembly to the side of the support plate away from the foundation pit wall.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1) In the present invention, by setting the lower support assembly and the upper support assembly, the support plate can be stably supported, and the collapse of the foundation pit wall can be effectively avoided. The upper support assembly is not directly connected to the bottom surface of the foundation pit, but is supported between the support plate and the bottom surface of the foundation pit through the side support mechanism, thereby ensuring the supporting force on the upper side of the support plate and avoiding the bending of the support plate. The height of the movable assembly in the side support mechanism is adjustable relative to the fixed assembly, which can make the supporting angle of the upper support assembly to the top of the support plate within a suitable angle range.

[0034] 2) The movable assembly in the present invention can be suspended, so that when the side support mechanism is connected, the movable assembly can be suspended to facilitate adjustment of the height of the movable assembly relative to the fixed assembly.

[0035] 3) The length of the upper support assembly in the present invention is adjustable to match the height adjustment of the movable assembly relative to the fixed assembly, so that the angle of the upper support assembly relative to the support plate meets the support requirements.

[0036] 4) The structures of the fixed component and the movable component of the present invention are reasonably arranged. The fixed component includes a fixed column. One side of the movable component can be inserted into the hollow part of the fixed column. A second locking piece is arranged between the movable component and the fixed column. The other side of the movable component is reliably connected to the upper support component, thereby ensuring stable support for the top side of the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0038] Figure 1 It is a schematic diagram of a hanging internal support device for foundation pit engineering according to one or more embodiments of the present invention.

[0039] Figure 2 It is a schematic diagram of a lower support assembly in a hanging internal support device for foundation pit engineering according to one or more embodiments of the present invention.

[0040] Figure 3 The invention is a schematic diagram of a side support mechanism in a hanging internal support device for a foundation pit project according to one or more embodiments of the invention. Figure 1 .

[0041] Figure 4 The invention is a schematic diagram of a side support mechanism in a hanging internal support device for a foundation pit project according to one or more embodiments of the invention. Figure 2 .

[0042] Figure 5 It is a schematic diagram of a moving component in a hanging internal support device for a foundation pit project according to one or more embodiments of the present invention.

[0043] Figure 6 It is a schematic diagram of an upper support assembly in a hanging internal support device for foundation pit engineering according to one or more embodiments of the present invention.

[0044] Figure 7 It is a schematic diagram of a first locking member in a hanging internal support device for foundation pit engineering according to one or more embodiments of the present invention.

[0045] Figure 8 It is a schematic diagram of a fixing component in a hanging internal support device for a foundation pit project according to one or more embodiments of the present invention.

[0046] Fig. 9 It is a schematic diagram of a second locking member in a hanging internal support device for foundation pit engineering according to one or more embodiments of the present invention.

[0047] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0048] Among them: 1. support plate; 2. lower support assembly; 201. diagonal support rod; 202. first hinge block; 203. first mounting plate; 204. second hinge block; 205. second mounting plate; 3. upper support assembly; 301. hinge rod; 302. adjustment rod; 303. third hinge block; 304. third mounting plate; 305. fourth hinge block; 306. fourth mounting plate; 4. first locking piece; 401. U-shaped screw; 402. first nut; 5. moving assembly; 501. moving rod; 502. fixed plate; 503. first reinforcement plate; 504. lifting ring; 6. fixing assembly; 601. fixing column; 602. bottom plate; 603. second reinforcement plate; 604. climbing rod; 7. second locking piece; 701. interlaced screw; 702. pull ring; 703. second nut. DETAILED DESCRIPTION

[0049] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0051] As introduced in the background technology, the prior art has the problem that the supporting force of the oblique lever supporting the top side of the steel plate is relatively weak. In order to solve the above technical problem, the present invention proposes a hanging internal support device for foundation pit engineering.

[0052] Embodiment 1

[0053] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a hanging internal support device for foundation pit engineering includes a support plate 1, the support plate 1 is provided with an upper support assembly 3 and a lower support assembly 2, a side support mechanism is arranged at one end of the upper support assembly 3, the side support mechanism is used to adjust the height of the upper support assembly 3, the side support mechanism includes a moving assembly 5 and a fixed assembly 6, the fixed assembly is fixed, the fixed assembly is arranged on the side of the support plate, the height of the moving assembly relative to the fixed assembly 6 is adjustable, and the position of the moving assembly 5 relative to the fixed assembly 6 can be locked after adjustment.

[0054] It should be noted that a support plate can be provided with one or more lower support assemblies 2. When multiple lower support assemblies 2 are provided, two adjacent lower support assemblies 2 are spaced at a set distance. In some examples, the support heights of the support plate 1 by two adjacent lower support assemblies 2 are different, so that the lower side of the support plate is effectively supported by the lower support assembly 2.

[0055] Accordingly, a support plate may be provided with one or more upper support assemblies to ensure stable support for the top side of the support plate.

[0056] refer to Figure 2 As shown, the lower support assembly 2 includes an oblique support rod 201, which is arranged at the bottom of one side of the support plate 1, one end of the oblique support rod 201 is hingedly connected to the support plate, and the other end is hingedly connected to the bottom surface of the foundation pit;

[0057] Specifically, a first hinge block 202 is set at one end of the diagonal support rod 201, and a second hinge block 204 is set at the other end. The first hinge block 202 is hinged to one end of the diagonal support rod 201; one end of the second hinge block 204 is hinged to the other end of the diagonal support rod 201; the first mounting plate 203 is fixedly connected to the first hinge block 202, and the first mounting plate 203 is used to be fixedly connected to the bottom surface of the foundation pit; one side of the second mounting plate 205 is fixedly connected to the second hinge block 204, and the second mounting plate 205 is fixedly connected to the support plate 1.

[0058] It is easy to understand that the support plate 1 is an anti-collapse baffle placed on the wall of the foundation pit, and the diagonal support rod 201 is a metal round rod. The diagonal support rod 201 is set at a set angle such as 45° to the bottom surface of the foundation pit. Circular through grooves are respectively opened at both ends of the diagonal support rod 201, and smooth round rods are inserted inside the circular through grooves. The two ends of the smooth round rods are welded and fixed to the inner wall of the second hinge block 204 or the first hinge block 202, so that the diagonal support rod 201 is hinged with the second hinge block 204 and the first hinge block 202, and the second hinge block 204 is welded and fixed at the contact part with the second mounting plate 205, the first hinge block 202 and the first mounting plate 203. The first mounting plate 203 is fixedly connected to the bottom surface of the foundation pit by rivets, and the second mounting plate 205 is fixedly connected to the support plate 1 by screws or welding. The lower support assembly 2 obliquely supports the support plate 1, which is a common technical means in existing foundation pit projects.

[0059] refer to Figure 6 As shown, the length of the upper support assembly 3 is adjustable, and the upper support assembly 3 includes an adjusting rod 302, which is arranged on the top side of the support plate 1, and the hinge rod 301 is circumferentially sleeved on the adjusting rod 302, and the protruding length of the adjusting rod relative to the hinge rod is adjustable; an adjusting hole for inserting the adjusting rod 302 is provided at one end of the hinge rod 301; a first locking piece 4 for locking the adjusting rod 302 and the hinge rod 301 is provided at one end of the hinge rod 301, and after the length of the adjusting rod is adjusted relative to the hinge rod, it is locked by the first locking piece 4.

[0060] The upper support assembly 3 also includes a third hinge block 303, which is hinged to the other end of the hinge rod 301; the third mounting plate 304 is fixedly connected to the third hinge block 303, and the third mounting plate 304 is used to connect to the moving assembly 5; one end of the fourth hinge block 305 is hinged to one end of the adjusting rod 302; one side of the fourth mounting plate 306 is fixedly connected to the other end of the fourth hinge block 305, and the fourth mounting plate 306 is fixedly connected to the support plate 1.

[0061] In this embodiment, the first locking member 4 includes a U-shaped screw 401, an adjustment hole is opened on the outer wall of the hinge rod 301, a first insertion hole is opened on the outer wall of the adjustment rod 302, the U-shaped screw 401 is inserted into the adjustment hole and the first insertion hole, and one or more first locking members can be set; the first nut 402 is sleeved on the outer wall of the U-shaped screw 401.

[0062] In other examples, the first locking member 4 may also be a bolt or nut.

[0063] It should be noted that the function of the upper support assembly 3 is the same as that of the lower support assembly 2, both of which provide support force for the support plate 1 to prevent the support plate 1 from collapsing. The lower support assembly 2 acts on the bottom of the support plate 1, and the upper support assembly 3 acts on the top of the support plate 1. The hinged connection method of the hinged rod 301 and the adjusting rod 302 to the third hinge block 303 and the fourth hinge block 305 is the same as the hinged connection method of the lower support assembly 2. The adjusting hole of the hinged rod 301 is opened at one end of the hinged rod 301 facing the adjusting rod 302. The size of the adjusting hole corresponds to the size of the first plug hole of the adjusting rod 302. A plurality of adjusting holes are opened along the straight direction of the hinged rod 301. They are arranged at equal intervals, each of which is 1.1 times the diameter of the U-shaped screw 401. By inserting the U-shaped screw 401 into the adjustment hole and the first plug hole at the corresponding position, and then rotating the first nut 402 to pull out the U-shaped screw 401, the total length of the hinge rod 301 and the adjustment rod 302 can be adjusted, so that the upper support assembly 3 and the bottom end of the fixed plate 502 form an angle of 45°, the third hinge block 303 and the third mounting plate 304, and the fourth hinge block 305 and the fourth mounting plate 306 are welded and fixed at the contact parts, the third mounting plate 304 is fixedly connected to the fixed plate 502 by bolts, and the fourth mounting plate 306 is fixedly connected to the support plate 1 by bolts.

[0064] refer to Figure 5 As shown, the moving component 5 includes a fixed plate 502, one end of which is fixedly connected to one side of the moving rod 501, the fixed plate 502 is vertically connected to the moving rod 501, and the fixed plate 502 is arranged at the top of the upper support component 3; a second locking member 7 for fixed connection with the fixing component 6 is arranged at the bottom of the moving rod 501.

[0065] In some examples, the fixed plate 502 is a whole plate, the fixed plate 502 and the moving rod 501 are an integrated structure, and the thickness of the moving rod 501 may be greater than the thickness of the fixed plate 502 .

[0066] In some other examples, the fixing plate can be set telescopically. Specifically, the fixing plate includes a first fixing plate and a second fixing plate. A groove is set on one side of the first fixing plate, and the second fixing plate can be inserted into the groove of the first fixing plate. The bolts pass through the side of the first fixing plate and can be connected to the second fixing plate. The fixing plate can always be abutted against the support plate through the extension and retraction of the fixing plate. A plurality of insertion rods are set on the side of the fixing plate facing the support plate, and adjacent two insertion rods are set at a distance. The insertion rods can be inserted into the opening on the top side of the support plate, and further force is provided to the support plate 4 through the abutment between the fixing plate and the side of the support plate away from the pit wall.

[0067] It is easy to understand that the movable component 5 also includes a first reinforcing plate 503, the two ends of which are respectively fixedly connected to the bottom end of the fixed plate 502 and one side of the movable rod 501; the bottom side of the lifting ring 504 is fixed to the side of the fixed plate 502 away from the upper support component 3, and the lifting ring 504 is welded and fixed to the top of the fixed plate 502, so that the lifting of the movable component 5 is conveniently performed through the lifting ring.

[0068] It can be understood that the contact portion between the moving rod 501 and the fixed plate 502 is welded and fixed, and the contact portion between the first reinforcing plate 503 and the moving rod 501 and the fixed plate 502 is welded and fixed, and the first reinforcing plate 503 plays a role of reinforcing support for the fixed plate 502 .

[0069] For some examples, see Fig. 9 As shown, the second locking member 7 includes an insertion screw 701, a second insertion hole is opened at the bottom of the movable rod 501, a pull ring 702 is set at one end of the insertion screw 501, and the outer wall of the pull ring 702 is fixedly connected to one end of the insertion screw 701; after the insertion screw 701 passes through the second insertion hole, it is sleeved on the outer wall of the insertion screw 701 through the second nut 703 to play a tightening role, the insertion screw 701 and the pull ring 702 are welded and fixed, and the insertion screw 701 can be pulled out by pulling the pull ring 702.

[0070] refer to Figure 8 As shown, the fixing assembly 6 includes a fixing column 601, the fixing column 601 is provided with a moving groove for inserting the moving rod 501, and the inner wall of the moving groove is provided with a positioning hole for inserting the screw 701; the bottom plate 602 is fixedly connected to the bottom end of the fixing column 601, and the contact portion between the fixing column 601 and the bottom plate 602 is welded and fixed, and the bottom plate 602 is used to connect to the foundation pit ground; the two ends of the second reinforcing plate 603 are respectively fixedly connected to the bottom plate 602 and the outer wall of the fixing column 601; the end of the climbing rod 604 is fixedly connected to the outer wall of the fixing column 601.

[0071] In this embodiment, the size of the moving rod 501 corresponds to the size of the moving groove, and a plurality of positioning holes are provided, and the plurality of positioning holes are arranged vertically at equal intervals. The size of the positioning hole is the same as the size of the second insertion hole, and both are 1.1 times the size of the insertion screw 701. By inserting the insertion screw 701 into the second insertion hole and the positioning hole of the corresponding height at the same time, the height of the moving rod 501 can be fixed.

[0072] It is easy to understand that the second reinforcing plate 603 is arranged on the side of the fixing column 601 away from the supporting plate 1, and the two ends of the second reinforcing plate 603 are welded and fixed at the contact parts of the fixing column 601 and the bottom plate 602, and the second reinforcing plate 603 is used to support the fixing column 601.

[0073] In some examples, the length of the base plate 602 is greater than the length of the fixed column, and an insertion claw is provided on the bottom side of the base plate. The insertion claw is specifically a continuous triangular claw provided on the bottom side of the base plate. The setting of the insertion claw can facilitate the insertion of the fixed column into the bottom surface of the foundation pit, and can also further enhance the stability of the connection between the fixed column and the bottom surface of the foundation pit.

[0074] There are multiple climbing poles 604 , which are arranged vertically at equal intervals. The climbing poles 604 are used for manual climbing, and the second locking member 7 can be installed by using the climbing poles.

[0075] In addition, the support plate 1 is made of a steel plate with a set thickness, and the side fixing mechanism, the upper support assembly and the lower support assembly are all made of rigid materials.

[0076] The internal support device provided in this embodiment can provide stable support for the support plate 1 and effectively avoid the collapse of the foundation pit wall. The upper support component 3 is not directly connected to the bottom surface of the foundation pit, but is supported between the support plate 1 and the bottom surface of the foundation pit through the side support mechanism, thereby ensuring the supporting force on the upper side of the support plate and avoiding the bending of the support plate. The height of the movable component in the side support mechanism is adjustable relative to the fixed component, which can make the supporting angle of the upper support component to the top of the support plate within a suitable angle range.

[0077] Embodiment 2

[0078] A construction method for a hanging internal support device of a foundation pit project, the construction method comprising the following contents:

[0079] Install the support plate 1 and insert the support plate 1 into the bottom surface of the foundation pit close to the pit wall;

[0080] Install the lower support assembly 2, adjust the angle between the diagonal support rod 201 and the bottom surface of the foundation pit, and fix the first mounting plate 203 and the second mounting plate 205 to the bottom surface of the foundation pit and the support plate 1 respectively; install the third mounting plate 304 on the top side of the support plate, and fix the third mounting plate 304 to the bottom end of the fixed plate 502 according to the angles set by the hinge rod 301 and the adjustment rod 302;

[0081] According to the appropriate support angle, the total length of the hinge rod 301 and the adjustment rod 302 is adjusted, and the length of the hinge rod 301 and the adjustment rod 302 is fixed by inserting the U-shaped screw 401 into the adjustment hole at the corresponding position, so as to meet the support force of the upper support assembly 3 on the support plate 1;

[0082] Adjust the height of the moving assembly 5, adjust the height of the fixed plate 502 through the lifting ring 504, insert the inserted screw 701 into the second plug hole of the moving rod 501 and the positioning hole of the fixed column 601, and lock the height of the moving rod 501; remove the inserted screw 701, and then use a crane to hook the lifting ring 504 to lift the height of the fixed plate 502, so that the upper support assembly 3 is moved to the top of the support plate 1, and the worker climbs the climbing rod 604 to insert the inserted screw 701 into the positioning hole at the corresponding position to fix the moving rod 501 and the fixed column 601;

[0083] The fourth mounting plate 306 is installed, and the fourth mounting plate 306 is fixedly connected to one side of the support plate 1 by bolts, thereby completing the fixed installation of the entire inner support device.

[0084] Finally, by rotating the hinge rod 301 and the fourth hinge block 305, the fourth mounting plate 306 and the outer wall of the support plate 1 are fitted together and fixedly connected by bolts, thereby completing the installation of the entire inner support device.

[0085] In this way, it can be ensured that the supports at the top and bottom of the support plate 1 are at appropriate support angles, thereby providing sufficient supporting force, while avoiding the problems of long length and large space occupied by traditional top support diagonal rods, and reducing the space occupied in the width direction of the foundation pit.

[0086] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hanging internal support device for foundation pit engineering, characterized in that: include: A support plate is inserted into the bottom surface of the foundation pit close to the wall of the foundation pit; A lower support assembly is arranged between the bottom surface of the foundation pit and the support plate to support the support plate, and the lower support assembly is arranged on a side of the support plate away from the wall of the foundation pit; An upper support assembly, wherein the upper support assembly and the lower support assembly are arranged on the same side of the support plate; The side support mechanism includes a fixed component and a movable component. The fixed component is fixed at the bottom of the foundation pit. The fixed component and the support plate are set at a distance. The movable component can be suspended. The movable component is connected to the upper support component to support the support plate through the side support mechanism. The height of the movable component relative to the fixed component is adjustable, and the movable component can be locked relative to the fixed component.

2. A hanging internal support device for foundation pit engineering according to claim 1, characterized in that: The length of the upper support assembly is adjustable to adjust the support angle of the upper support assembly relative to the support plate; The distance between the fixing assembly and the support plate is greater than the distance between the bottom side of the lower support assembly and the support plate.

3. A hanging internal support device for foundation pit engineering according to claim 1, characterized in that: The movable component is bent, and a lifting ring is arranged on the top side of the movable component to facilitate the connection between the movable component and the fixed component and to facilitate the adjustment of the height of the movable component relative to the fixed component. The top side of the movable component is connected to the upper support component.

4. A hanging type internal support device for foundation pit engineering according to claim 3, characterized in that: The moving assembly includes a fixed plate, the fixed plate is provided with the lifting ring, the fixed plate is connected to the moving rod, the width of the fixed plate is greater than the width of the moving rod, the moving rod is connected to the fixed assembly, and the moving rod and the fixed assembly are plugged in to achieve the adjustment of the height of the moving rod; The fixing plate is telescopically arranged so that the fixing plate can abut against the supporting plate. An insertion rod is arranged on one side of the fixing plate facing the supporting plate, and the insertion rod can be inserted into the opening of the supporting plate.

5. The hanging internal support device for foundation pit engineering according to claim 1 is characterized in that: The upper support assembly comprises a hinged rod and an adjusting rod, the adjusting rod is connected to the hinged rod by plugging, the extension length of the adjusting rod relative to the hinged rod is adjustable, and the adjusting rod and the hinged rod are detachably connected by a first locking member; The first locking member is a U-shaped screw, which passes through the hinge rod and the adjusting rod and is then locked by a first nut.

6. A hanging type inner support device for foundation pit engineering according to claim 5, characterized in that: One end of the hinged rod is hingedly connected to the support plate or the moving assembly, and one end of the adjustment rod is hingedly connected to the moving assembly or the support plate.

7. The hanging internal support device for foundation pit engineering according to claim 1 is characterized in that: The fixed assembly includes a fixed column, the bottom of which is connected to the bottom surface of the foundation pit, the fixed column is hollow, one side of the movable assembly is inserted into the hollow part of the fixed column, and a second locking member is arranged between the movable assembly and the fixed column; The second locking member includes an insertion screw, one end of which passes through the fixed column and the moving component and is locked by a second nut.

8. A hanging type inner support device for foundation pit engineering according to claim 7, characterized in that: A plurality of layers of climbing poles are arranged on the side of the fixing column, and the spacing between two adjacent layers of climbing poles is arranged to facilitate the installation of the second locking member; An insertion claw is arranged at the bottom of the fixing assembly to facilitate the fixing column to be inserted into the bottom surface of the foundation pit.

9. The hanging internal support device for foundation pit engineering according to claim 1, characterized in that: The lower support assembly comprises an oblique support rod, and the support plate is provided with a hinge block, and the two ends of the oblique support rod are respectively hingedly connected to the hinge blocks on the corresponding sides.

10. A construction method for a hanging type inner support device for foundation pit engineering according to any one of claims 1 to 9, characterized in that: It includes the following: Install the support plate and insert it into the bottom of the foundation pit close to the wall of the foundation pit; A lower support assembly is arranged on one side of the support plate away from the foundation pit wall, one end of the lower support assembly is connected to the bottom surface of the foundation pit, and the other end of the lower support assembly is connected to the support plate; Connect one side of the upper support assembly to the moving assembly; A fixed component of the side support mechanism is arranged at the bottom surface of the foundation pit, the fixed component is arranged at a distance from the support plate, and the movable component is hung to facilitate the connection between the movable component and the fixed component; Connect the other side of the upper support assembly to the side of the support plate away from the foundation pit wall.

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