Detachable assembly type foundation pit supporting device

Abstract

The invention relates to the technical field of constructional engineering, and discloses a detachable assembly type foundation pit supporting device which comprises a plurality of main supporting plates and a plurality of auxiliary supporting plates which are attached to the side wall of a foundation pit, two grooves are symmetrically formed in the two sides of each main supporting plate, and a plurality of first racks with adjustable positions are arranged on the inner walls of the grooves; two convex blocks matched with the grooves are symmetrically formed on the two sides of the auxiliary supporting plate, a plurality of first gears are rotationally connected to the side walls of the convex blocks, a connecting mechanism is arranged on the side wall of the main supporting plate, and the multiple first racks, the multiple first gears and the connecting mechanism are arranged, so that mounting and dismounting can be rapidly conducted; the problem that mounting and dismounting are inconvenient in the prior art is solved, and the protection stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a detachable assembled foundation pit supporting device. Background Art

[0002] The foundation pit project mainly includes excavation, dewatering and support, and is a comprehensive system project. According to JGJ120-99 "Technical Code for Construction Foundation Pit Support", the safety level of the foundation pit side wall is divided into one, two and three levels, corresponding to the damage to the support structure, soil instability or excessive deformation, which has a very serious, general and non-serious impact on the surrounding environment and underground structure of the foundation pit. It can be seen that the foundation pit support is the core and focus of the foundation pit project, and the quality of the support structure will directly determine the quality of the foundation pit project.

[0003] At present, the purpose of foundation pit support is to protect the smooth progress of underground structure construction and the safety of the environment around the foundation pit. It can be divided into temporary support and permanent support. General projects mostly use temporary support, that is, support measures are taken for the foundation pit during the foundation pit excavation stage, and the support structure is removed after the foundation pit project is completed.

[0004] In the above scheme, the existing temporary support is not perfect in installation and disassembly functions, the installation and disassembly are inconvenient, and the protection stability is insufficient. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a detachable assembled foundation pit support device, which can be quickly installed and disassembled by providing multiple first racks, multiple first gears and a connecting mechanism, thereby solving the problem of inconvenient installation and disassembly in the prior art and improving the stability of protection.

[0006] The solution of the present invention to solve the technical problem is: A detachable assembled foundation pit support device comprises a plurality of main support plates and a plurality of auxiliary support plates attached to the side walls of the foundation pit, two grooves are symmetrically formed on both sides of the main support plates, a plurality of first racks with adjustable positions are provided on the inner walls of the grooves, two protrusions cooperating with the grooves are symmetrically formed on both sides of the auxiliary support plates, a plurality of first gears are rotatably connected to the side walls of the protrusions, and a connecting mechanism is provided on the side walls of the main support plates.

[0007] When it is necessary to support the foundation pit, the main support plate is fitted on the side wall of the foundation pit, and then the rivets are fixed to the side wall of the foundation pit through the reserved holes on the side wall of the main support plate, so that the main support plate is fixed on the side wall of the foundation pit, and the secondary support plate is inserted into one side of the main support plate so that the groove and the protrusion cooperate with each other, and at the same time, multiple first racks are driven to move, so that the multiple first racks are respectively meshed with the multiple first gears one by one, and at the same time, the multiple first gears are driven to rotate, so that the main support plate and the secondary support plate are tightly fitted together, and then the multiple first racks are fixed at the required position, and the above operation is repeated, so that multiple main support plates and multiple secondary support plates can be quickly installed, and the connecting mechanism is started to connect the main support plate with adjacent secondary support plates, so that the multiple main support plates and multiple secondary support plates can form a whole, thereby improving the stability of protection.

[0008] By providing a plurality of first racks, a plurality of first gears and a connecting mechanism, quick installation and disassembly can be performed, thus solving the problem of inconvenient installation and disassembly in the prior art and improving the stability of protection.

[0009] The invention is further configured as follows: a plurality of first racks with adjustable positions include a sliding assembly, an adjusting assembly and a fixing assembly, the sliding assembly includes a plurality of first dovetail blocks fixed in grooves, a dovetail groove that cooperates with the first dovetail block is formed at the lower end of the first rack, and a second dovetail block that cooperates with the dovetail groove is fixed in the protrusion.

[0010] Through the above technical solution, when the main supporting plate and the auxiliary supporting plate are tightly fitted together, the dovetail groove is simultaneously mounted on the first dovetail block and the second dovetail block, thereby improving the stability of the first rack.

[0011] The invention is further configured as follows: the adjustment component includes multiple rotating shafts rotatably connected in the main support plate, a second gear is fixed to one end of the rotating shaft, a third gear is fixed to the other end of the rotating shaft, two sliding grooves are symmetrically formed in the main support plate, a second rack is slidably connected to the sliding groove, multiple second gears are respectively meshed with multiple first racks one by one, and multiple third gears on the same side are meshed with one of the second racks.

[0012] Through the above technical solution, when it is necessary to drive multiple first racks to move at the same time, the second rack is driven to move. The movement of the second rack drives multiple third gears to rotate at the same time. The rotation of multiple third gears drives multiple second gears to rotate through the connecting shaft, thereby driving multiple first racks to move at the same time.

[0013] The invention is further configured as follows: the fixing assembly includes a moving rod fixed on the side wall of the second rack, two screws are symmetrically threaded on the side wall of the moving rod, and the screws pass through the protruding ends of the moving rod and press against the side wall of the main support plate.

[0014] Through the above technical solution, the moving rod is driven to move, which can drive the second rack to move. After the second rack is moved to the desired position, the screw is rotated to press the screw against the side wall of the main support plate, thereby fixing the second rack at the desired position.

[0015] The invention is further configured as follows: the connecting mechanism includes a connecting assembly and a locking assembly, the connecting assembly includes a shell fixed on the side wall of the main support plate, four connecting rods are inserted into the four sides of the shell, a disc is rotatably connected to the inner wall of the shell, four arc grooves are formed on the side wall of the disc, one end of the connecting rod is slidably connected in the arc groove, and two sleeves are symmetrically fixed on the side wall of the auxiliary support plate.

[0016] Through the above technical scheme, when the main support plate needs to be connected to the adjacent secondary support plate, the disc is driven to rotate, and under the action of the four arc grooves, the four connecting rods are driven to move outward at the same time, so that one end of the connecting rod is inserted into the sleeve, thereby enabling the main support plate to be connected to the adjacent secondary support plate.

[0017] The invention is further configured as follows: the locking assembly includes a handle fixed on the side wall of the disc, and a nut is threaded on the side wall of the handle.

[0018] Through the above technical solution, after the disc is driven to rotate to the desired position, the nut is rotated to press the nut against the side wall of the shell, so that the disc can be fixed at the desired position.

[0019] The invention is further configured as follows: a plurality of card slots are formed on both sides of the main supporting plate, and a plurality of card blocks cooperating with the card slots are fixed on both sides of the auxiliary supporting plate.

[0020] Through the above technical solution, the stability of the main supporting plate and the auxiliary supporting plate when they are fitted together can be improved.

[0021] The beneficial effects of the present invention are: Compared with the prior art, by providing a plurality of first racks, a plurality of first gears and a connecting mechanism, quick installation and disassembly can be performed, thus solving the problem of inconvenient installation and disassembly in the prior art and improving the stability of protection.

[0022] By providing a connecting assembly, the main supporting plate and the adjacent auxiliary supporting plate can be connected to each other.

[0023] By providing the card slot and the card block, the stability of the main supporting plate and the auxiliary supporting plate when they are fitted together can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure after the installation of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of the main support plate and the connecting parts; Figure 3 It is a side view of the main support plate and the connecting parts; Figure 4 It is a three-dimensional structural schematic diagram of the auxiliary support plate and the connecting parts; Figure 5 Schematic diagram of the three-dimensional structure of part of the connecting mechanism.

[0025] Figure numerals: 1. main support plate; 101. groove; 102. slot; 2. auxiliary support plate; 3. first rack; 301. dovetail groove; 4. protrusion; 5. first gear; 6. rivet; 7. first dovetail block; 8. second dovetail block; 9. second gear; 10. third gear; 11. second rack; 12. moving rod; 13. screw rod; 14. housing; 15. connecting rod; 16. disc; 1601. arc groove; 17. sleeve; 18. handle; 19. nut; 20. block. DETAILED DESCRIPTION

[0026] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. At the same time, it should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

[0027] See Figures 1 to 5 As shown, a detachable assembled foundation pit support device includes a plurality of main support plates 1 and a plurality of auxiliary support plates 2 attached to the side walls of the foundation pit, two grooves 101 are symmetrically formed on both sides of the main support plate 1, and a plurality of first racks 3 with adjustable positions are provided on the inner walls of the grooves 101, two protrusions 4 cooperating with the grooves 101 are symmetrically formed on both sides of the auxiliary support plate 2, a plurality of first gears 5 are rotatably connected to the side walls of the protrusions 4, and a connecting mechanism is provided on the side walls of the main support plate 1.

[0028] When it is necessary to support the foundation pit, the main supporting plate 1 is fitted on the side wall of the foundation pit, and then the rivet 6 is fixed to the side wall of the foundation pit through the reserved holes on the side wall of the main supporting plate 1, so that the main supporting plate 1 is fixed on the side wall of the foundation pit, and the secondary supporting plate 2 is inserted into one side of the main supporting plate 1, so that the groove 101 and the protrusion 4 cooperate together, and at the same time, multiple first racks 3 are driven to move, so that the multiple first racks 3 are respectively meshed with the multiple first gears 5 one by one, and at the same time, multiple first gears 5 are driven to rotate, so that the main supporting plate 1 and the secondary supporting plate 2 are tightly fitted together, and then the multiple first racks 3 are fixed at the required position, and the above operation is repeated, so that multiple main supporting plates 1 and multiple secondary supporting plates 2 can be quickly installed, and the connecting mechanism is started to connect the main supporting plate 1 with the adjacent secondary supporting plates 2, so that the multiple main supporting plates 1 and the multiple secondary supporting plates 2 can form a whole, thereby improving the stability of protection.

[0029] By providing a plurality of first racks 3, a plurality of first gears 5 and a connecting mechanism, quick installation and disassembly can be performed, thus solving the problem of inconvenient installation and disassembly in the prior art and improving the stability of protection.

[0030] The first rack 3 with multiple adjustable positions includes a sliding component, an adjusting component and a fixing component. The sliding component includes multiple first dovetail blocks 7 fixed in the groove 101. The lower end of the first rack 3 is formed with a dovetail groove 301 that cooperates with the first dovetail block 7, and the protrusion 4 is fixed with a second dovetail block 8 that cooperates with the dovetail groove 301.

[0031] When the main supporting plate 1 and the auxiliary supporting plate 2 are tightly fitted together, the dovetail groove 301 is simultaneously sleeved on the first dovetail block 7 and the second dovetail block 8 , thereby improving the stability of the first rack 3 .

[0032] The adjustment component includes multiple rotating shafts rotatably connected in the main support plate 1, a second gear 9 is fixed to one end of the rotating shaft, and a third gear 10 is fixed to the other end of the rotating shaft. Two sliding grooves are symmetrically formed in the main support plate 1, and a second rack 11 is slidably connected to the sliding groove. The multiple second gears 9 are respectively meshed with the multiple first racks 3 one by one, and the multiple third gears 10 on the same side are meshed with one of the second racks 11.

[0033] When it is necessary to drive multiple first racks 3 to move at the same time, the second rack 11 is driven to move. The movement of the second rack 11 drives multiple third gears 10 to rotate at the same time. The rotation of multiple third gears 10 drives multiple second gears 9 to rotate through the connecting shaft, thereby driving multiple first racks 3 to move at the same time.

[0034] The fixing assembly includes a moving rod 12 fixed on the side wall of the second rack 11 , and two screws 13 are symmetrically screwed on the side wall of the moving rod 12 . The screws 13 pass through the extended ends of the moving rod 12 and press against the side wall of the main supporting plate 1 .

[0035] The moving rod 12 is driven to move, which can drive the second rack 11 to move. After the second rack 11 is moved to the desired position, the screw 13 is rotated to press the screw 13 against the side wall of the main support plate 1, so that the second rack 11 can be fixed at the desired position.

[0036] The connecting mechanism includes a connecting component and a locking component. The connecting component includes a shell 14 fixed on the side wall of the main support plate 1. Four connecting rods 15 are inserted on the four sides of the shell 14. A disk 16 is rotatably connected to the inner wall of the shell 14. Four arc grooves 1601 are formed on the side wall of the disk 16. One end of the connecting rod 15 is slidably connected in the arc groove 1601. Two sleeves 17 are symmetrically fixed on the side wall of the auxiliary support plate 2.

[0037] When the main support plate 1 needs to be connected to the adjacent secondary support plate 2, the disc 16 is driven to rotate, and under the action of the four arc-shaped grooves 1601, the four connecting rods 15 are driven to move outward at the same time, so that one end of the connecting rod 15 is inserted into the sleeve 17, so that the main support plate 1 and the adjacent secondary support plate 2 can be connected to each other.

[0038] The locking assembly includes a handle 18 fixed to the side wall of the disc 16 , and a nut 19 is threadedly connected to the side wall of the handle 18 .

[0039] After the disk 16 is driven to rotate to a desired position, the nut 19 is rotated to press the nut 19 against the side wall of the housing 14 , thereby fixing the disk 16 at a desired position.

[0040] A plurality of slots 102 are formed on both sides of the main supporting plate 1 , and a plurality of blocks 20 matching the slots 102 are fixed on both sides of the auxiliary supporting plate 2 .

[0041] The stability of the main supporting plate 1 and the auxiliary supporting plate 2 when they are fitted together can be improved.

[0042] Working principle: When the foundation pit needs to be supported, the main support plate 1 is attached to the side wall of the foundation pit, and the rivets 6 are fixed to the side wall of the foundation pit through the reserved holes on the side wall of the main support plate 1, so that the main support plate 1 is fixed to the side wall of the foundation pit, and the auxiliary support plate 2 is inserted into one side of the main support plate 1, so that the groove 101 cooperates with the protrusion 4, and drives the moving rod 12 to move, thereby driving the second rack 11 to move, and the movement of the second rack 11 simultaneously drives the multiple third gears 10 to rotate, and the rotation of the multiple third gears 10 drives the multiple second gears 9 to rotate through the connecting shaft, thereby simultaneously driving the multiple first racks 3 to move, so that the multiple first racks 3 are respectively meshed with the multiple first gears 5 one by one, and simultaneously drive the multiple first gears 5 to rotate The main supporting plate 1 and the auxiliary supporting plate 2 are moved so that they are tightly fitted together, and the screw rod 13 is rotated so that the screw rod 13 is pressed against the side wall of the main supporting plate 1, thereby fixing the second rack 11 at the desired position, thereby fixing the multiple first racks 3 at the desired position, and repeating the above operation, so that multiple main supporting plates 1 and multiple auxiliary supporting plates 2 can be quickly installed, and the handle 18 drives the disc 16 to rotate, and under the action of the four arc grooves 1601, the four connecting rods 15 are driven to move outward at the same time, so that one end of the connecting rod 15 is inserted into the sleeve 17, so that the main supporting plate 1 and the adjacent auxiliary supporting plate 2 are connected to each other, so that the multiple main supporting plates 1 and the multiple auxiliary supporting plates 2 form a whole, thereby improving the stability of protection.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A detachable assembled foundation pit support device, comprising a plurality of main support plates (1) and a plurality of auxiliary support plates (2) attached to the side wall of the foundation pit, characterized in that: Two grooves (101) are symmetrically formed on both sides of the main support plate (1), and a plurality of first racks (3) with adjustable positions are provided on the inner walls of the grooves (101). Two protrusions (4) cooperating with the grooves (101) are symmetrically formed on both sides of the auxiliary support plate (2), and a plurality of first gears (5) are rotatably connected to the side walls of the protrusions (4). A connecting mechanism is provided on the side walls of the main support plate (1).

2. A detachable assembled foundation pit supporting device according to claim 1, characterized in that: The plurality of first racks (3) having adjustable positions comprise a sliding assembly, an adjusting assembly and a fixing assembly, wherein the sliding assembly comprises a plurality of first dovetail blocks (7) fixed in grooves (101), a dovetail groove (301) cooperating with the first dovetail block (7) is formed at the lower end of the first rack (3), and a second dovetail block (8) cooperating with the dovetail groove (301) is fixed in the protrusion (4).

3. The detachable assembled foundation pit support device according to claim 1 is characterized in that: The adjustment assembly comprises a plurality of rotating shafts rotatably connected in the main support plate (1), a second gear (9) being fixed at one end of the rotating shaft, a third gear (10) being fixed at the other end of the rotating shaft, two slide grooves being symmetrically formed in the main support plate (1), a second rack (11) being slidably connected on the slide grooves, the plurality of second gears (9) respectively meshing with the plurality of first racks (3) in a one-to-one correspondence, and the plurality of third gears (10) on the same side meshing with one of the second racks (11).

4. A detachable assembled foundation pit supporting device according to claim 3, characterized in that: The fixing assembly comprises a moving rod (12) fixed to the side wall of the second rack (11), two screw rods (13) being symmetrically screwed to the side wall of the moving rod (12), and the screw rods (13) passing through the protruding ends of the moving rod (12) and pressing against the side wall of the main support plate (1).

5. The detachable assembled foundation pit supporting device according to claim 1 is characterized in that: The connection mechanism comprises a connection assembly and a locking assembly. The connection assembly comprises a shell (14) fixed on the side wall of the main support plate (1). Four connecting rods (15) are inserted into four sides of the shell (14). A disk (16) is rotatably connected to the inner wall of the shell (14). Four arc grooves (1601) are formed on the side wall of the disk (16). One end of the connecting rod (15) is slidably connected in the arc groove (1601). Two sleeves (17) are symmetrically fixed on the side wall of the auxiliary support plate (2).

6. A detachable assembled foundation pit supporting device according to claim 5, characterized in that: The locking assembly comprises a handle (18) fixed on the side wall of the disc (16), and a nut (19) is threadedly connected to the side wall of the handle (18).

7. The detachable assembled foundation pit supporting device according to claim 1 is characterized in that: A plurality of clamping grooves (102) are formed on both sides of the main support plate (1), and a plurality of clamping blocks (20) matching the clamping grooves (102) are fixed on both sides of the auxiliary support plate (2).

Images