CN214328904U - Foundation ditch retaining structure for housing construction - Google Patents

Foundation ditch retaining structure for housing construction Download PDF

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Publication number
CN214328904U
CN214328904U CN202120561173.6U CN202120561173U CN214328904U CN 214328904 U CN214328904 U CN 214328904U CN 202120561173 U CN202120561173 U CN 202120561173U CN 214328904 U CN214328904 U CN 214328904U
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China
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base
bracing piece
rod
driving
retaining structure
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CN202120561173.6U
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Chinese (zh)
Inventor
戴鑫
袁剑波
陈洁
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Jiangsu Wanlong Construction Co ltd
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Jiangsu Wanlong Construction Co ltd
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Abstract

The utility model relates to a foundation ditch retaining structure for housing construction, including base and the fender breast board of setting on the base, detachable stationary phase even has a plurality of bracing pieces on the base, the periphery of bracing piece and the one end butt that keeps away from the foundation ditch edge of fender breast board, be provided with the fixed slot on the base, the fixed slot is used for supplying bracing piece bottom gomphosis, be provided with the fixing device who is used for maintaining bracing piece bottom and fixed slot gomphosis state on the base, be provided with the separator part who is used for removing bracing piece bottom and fixed slot gomphosis state on the base. This application has soil retaining structure and blocks the effect that the effect is excellent to the soil around the foundation ditch.

Description

Foundation ditch retaining structure for housing construction
Technical Field
The application relates to the field of housing construction, in particular to a foundation pit retaining structure for housing construction.
Background
The retaining plate is a temporary retaining structure for preventing the collapse of grooves and foundation pits earthwork, generally comprises supporting plates and cross braces, and is made of common steel, wood and bamboo. The steel pile retaining plate support is characterized in that a groove-shaped steel plate pile is driven by a pile driver before grooves and foundation pits are excavated, and after the pile is driven, a cross brace is arranged to reinforce the groove-shaped steel plate pile while earthwork excavation is carried out.
The utility model with the bulletin number of CN212582697U discloses a foundation pit retaining structure for a house building, which belongs to the technical field of foundation pit support and comprises a plurality of upright posts, a plurality of inserted bars are arranged on the upright posts, water-stop plates are arranged between the adjacent upright posts, each water-stop plate comprises a plurality of splicing plates, both ends of each splicing plate are respectively provided with a connecting block, a moving block is arranged on the surface of each connecting block, which is opposite to the splicing plates, a groove body is arranged on each upright post along the height direction of the upright post, both sides of each upright post are respectively provided with a strip-shaped opening along the height direction of the upright post, the strip-shaped openings are communicated with the groove body, the same end of the groove body and the strip-shaped openings runs through the upright post, a fixing part for fixing the moving blocks into the groove body is arranged in the groove body, the water-stop plates are arranged into a plurality of splicing plates, the water-stop plates are convenient to transport, and the splicing plates with different numbers can be suitable for the side walls of foundation pits with different heights, the application range of the water-stop sheet is improved.
With respect to the related art in the above, the inventor believes that when the pressure of the two sides of the foundation pit on the retaining plate is large, the relative position relationship between the retaining plate and the ground is likely to be shifted, resulting in a possibility that the retaining effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to improve the retaining effect of retaining structure to soil around the foundation ditch, this application provides a foundation ditch retaining structure for housing construction.
The application provides a pair of foundation ditch soil retaining structure for housing construction adopts following technical scheme:
the utility model provides a foundation ditch retaining structure for housing construction, includes the base and sets up the fender native board on the base, detachable stationary phase even has a plurality of bracing pieces on the base, the periphery of bracing piece and the one end butt that keeps off the native board and keep away from the foundation ditch edge, be provided with the fixed slot on the base, the fixed slot is used for supplying bracing piece bottom gomphosis, be provided with the fixing device who is used for maintaining bracing piece bottom and fixed slot gomphosis state on the base, be provided with the separator part who is used for removing bracing piece bottom and fixed slot gomphosis state on the base.
By adopting the technical scheme, the supporting rods are abutted against the soil retaining plate, so that the bearing capacity of the soil retaining plate to soil is improved, the soil retaining capacity to soil is improved, the supporting rods are detachably and fixedly connected with the base, the whole base occupies a small area and is convenient to transport, whether the supporting rods are installed or how many the supporting rods are installed can be selected according to the softness degree of soil, so that the soil around a foundation pit is effectively blocked, and the soil retaining effect of a soil retaining structure is improved; through the arrangement of the fixing device and the separating part, the support rod and the base are convenient to disassemble and assemble.
Optionally, the fixing device includes a ratchet and a pawl that are engaged with each other, the ratchet is fixedly connected to the side wall of the fixing block, the pawl is rotatably connected to the base, and an elastic member for driving the pawl to be engaged with the ratchet is arranged on the base.
Through adopting above-mentioned technical scheme, under the normality, under the elastic force of elastic component for the pawl meshes with the ratchet all the time, makes the bracing piece only can slide in the fixed slot towards, realizes that bracing piece and base are stably connected, thereby carries out the outrigger to retaining the native board, improves the fender soil effect of retaining the native structure.
Optionally, the separating component comprises a separating rod arranged on the base in a sliding mode, the separating rod slides along the height direction of the base, the separating rod is connected with the pawl, and a transmission piece used for driving the bottoms of the plurality of supporting rods and the embedded state of the fixing grooves to be released is arranged on the base.
Through adopting above-mentioned technical scheme, when needs separation bracing piece and base, the release lever that slides drives the pawl that links to each other with the release lever and keeps away from the ratchet and rotate, and then pawl and ratchet separation to can reduce the volume of base with bracing piece and base separation, the transportation of being convenient for, through the setting of driving medium, can be with a plurality of release levers and base synchronous separation, user easy and simple to handle.
Optionally, the transmission member includes a transmission rod slidably disposed on the base, and the transmission rod is connected to two adjacent separating rods.
Through adopting above-mentioned technical scheme, when needs separation bracing piece and base, a release lever slides, through the setting of transfer line, the synchronous rotation of release lever that drives and the transfer line links to each other in step, and then drives a plurality of pawls and ratchet separation, realizes a plurality of release levers and base synchronous separation, and user's easy and simple to handle.
Optionally, the separation rod is rotatably connected with a limiting rod, the rotation center line of the limiting rod is parallel to the height direction of the base, a plurality of clamping grooves are formed in the base corresponding to the limiting rod, the clamping grooves are arranged in the height direction of the base, and the clamping grooves are used for embedding the limiting rod.
Through adopting above-mentioned technical scheme, under the normality, gag lever post and the block groove that is close to the pawl reduce the user and miss the trip lever that touches for be connected unstably between bracing piece and the base, after the trip lever that slides separates to drive pawl and ratchet, rotate gag lever post to gag lever post and keep away from the block groove gomphosis of clamping jaw, need not the user and maintain the state that pawl and ratchet separated, convenient to use person separates bracing piece and base.
Optionally, the support rod is rotatably connected with a support rod, an accommodating groove for accommodating the support rod is formed in the support rod, a sliding groove is formed in the support rod and used for being connected with the support rod in a sliding mode, and a limiting assembly used for limiting the support rod to slide is arranged on the support rod.
Through adopting above-mentioned technical scheme, after bracing piece and pedestal connection are stable, rotate branch to with the accepting groove separation to along the spout branch that slides, make branch and ground butt, make to enclose out triangle stable structure between branch, bracing piece and the ground, carry out the outrigger to retaining the native board, further improve the retaining effect of retaining the native structure.
Optionally, the limiting assembly comprises a limiting block, a rotating shaft is arranged on the supporting rod, the rotating shaft is parallel to the length direction of the base, the limiting block is arranged on the rotating shaft in a sliding mode, the limiting block slides along the length direction parallel to the base, a plurality of limiting grooves used for being embedded with the limiting block are formed in the supporting rod, a driving piece used for driving the limiting block to be embedded with the limiting grooves is arranged on the supporting rod, and a driving piece used for driving the limiting block to be separated from the limiting grooves is arranged on the supporting rod.
Through adopting the above technical scheme, under the normality, branch is located the accepting groove, make the area of bracing piece little, be convenient for transport, branch is difficult for taking place to damage simultaneously, the life of extension bracing piece, when the branch that slides as needs, through driving piece, drive stopper and spacing groove separation, thereby branch slides, when sliding to a certain distance, the stopper is under the driving action of driving piece, automatic sliding to with the spacing groove gomphosis, make the branch carry out the stable support to the bracing piece, further improve the fender soil effect of retaining structure.
Optionally, the driving piece comprises a driving rod and a driving rope, the driving rod is rotatably connected to the supporting rod, one end of the driving rope is connected with the driving rod, and the other end of the driving rope is connected with the limiting block.
Through adopting above-mentioned technical scheme, when branch slides as needs, the rotation drives pole receipts winding and moves the rope to the stopper that the drive links to each other with the drive rope is kept away from the spacing groove and is slided, makes branch can slide along the bracing piece, thereby makes the branch carry out the outrigger to the bracing piece, realizes the outrigger to retaining the native board.
Optionally, one end of the support rod, which is far away from the rotating shaft, is provided with a butting block, and the butting block is used for butting against the ground.
Through adopting above-mentioned technical scheme, butt piece and ground looks butt improve the supporting effect of ground to branch, and then improve the supporting effect of branch to the bracing piece to improve the supporting effect to retaining soil, thereby realize improving the retaining soil effect of retaining soil structure.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the supporting rods are detachably and fixedly connected to the base, when soil around a foundation pit is soft or pressure is applied on the soil retaining plate too much, the soil retaining plate can be supported by installing the supporting rods, the bearing capacity of the soil retaining plate is improved, the soil retaining effect of a soil retaining structure is improved, the supporting rods and the base are stably connected through the fixing device, the soil retaining plate is stably supported, and a user can detach the supporting rods through the separation part, so that the base occupies a small area and is convenient to transport;
2. through sliding branch to separating with the accepting groove to make branch, bracing piece and ground enclose out stable triangle-shaped, make to carry out the outrigger to the bracing piece, thereby improve the supporting effect to retaining plate, realize the outrigger to soil around the foundation ditch.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a solid view of a cross-sectional structure according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a support rod in the embodiment of the present application.
Fig. 4 is an enlarged view of a portion B in fig. 3.
Fig. 5 is an enlarged view of a portion C in fig. 3.
Fig. 6 is an enlarged view of a portion a in fig. 1.
Fig. 7 is a schematic cross-sectional view of a support rod in an embodiment of the present application.
Fig. 8 is an enlarged view of a portion D in fig. 7.
Description of reference numerals: 1. a base; 11. a soil guard plate; 12. fixing grooves; 13. a clamping groove; 2. a support bar; 21. a strut; 211. A rotating shaft; 2111. a receiving groove; 212. a butting block; 22. an accommodating groove; 23. a chute; 24. a limiting groove; 3. a fixing device; 31. a ratchet; 32. a pawl; 33. an elastic member; 4. a separating member; 41. a separating lever; 411. a limiting rod; 5. a limiting component; 51. a limiting block; 52. a drive member; 6. a driver; 61. driving the rod; 62. driving the rope; 7. a transmission member; 71. and a transmission rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses foundation ditch soil retaining structure for housing construction. Referring to fig. 1 and 2, a foundation ditch retaining structure for housing construction includes base 1 and the fender apron 11 of setting on base 1, and the detachable fixed a plurality of bracing pieces 2 that link to each other on base 1, and the quantity of bracing piece 2 is 2 in this embodiment, and the periphery wall of bracing piece 2 and the one end looks butt that keeps away from soil of fender apron 11, and the shape of bracing piece 2 can be round bar, also can be the square bar, selects the square bar in this embodiment. The base 1 is provided with a fixing groove 12 for embedding one end of the support rod 2 close to the ground, and the fixing groove 12 is used for embedding the support rod 2. The base 1 is provided with a fixing device 3 for maintaining the state in which the support bar 2 is fitted in the fixing groove 12.
Referring to fig. 3, the base 1 is provided with a separating member 4 for releasing the state in which the supporting bar 2 is fitted into the fixing groove 12. The support rod 2 is rotatably connected with a support rod 21 for improving the supporting effect of the support rod 2 on the retaining plate 11.
Through the detachable fixed phase of bracing piece 2 and linking to on base 1, when soil around the foundation ditch produced great pressure to retaining plate 11, can support retaining plate 11 through erection bracing piece 2, improve the retaining effect of retaining plate 11, make the connection between bracing piece 2 and base 1 more stable through the setting of fixing device 3, thereby stably support retaining plate 11, improve the retaining effect, through the setting of spacer 4, can separate base 1 and bracing piece 2, be convenient for the transportation of retaining structure; through the setting of branch 21, carry out the outrigger to bracing piece 2 to further improve the supporting effect to retaining soil board 11, further improve the retaining soil effect of retaining soil structure.
Referring to fig. 3 and 4, the fixing device 3 includes a ratchet 31 and a pawl 32 engaged with each other, the ratchet 31 is welded to the side wall of the support rod 2, the pawl 32 is rotatably connected to the base 1, the rotation center line of the pawl 32 is parallel to the width direction of the base 1, the base 1 is provided with an elastic member 33 for driving the pawl 32 to engage with the ratchet 31, the elastic member 33 may be a spring plate or a torsion spring, but any elastic member capable of driving the pawl 32 to engage with the ratchet 31 may be used, and a torsion spring is used in this embodiment. One end of the torsion spring is connected with the pawl 32, far away from one end of the ratchet 31, in a gluing manner, and the other end of the torsion spring is connected with the base 1 in a gluing manner.
Under the spring action of torsional spring, drive pawl 32 meshes with ratchet 31 all the time for bracing piece 2 only can slide towards fixed slot 12, and then makes being connected of bracing piece 2 and base 1 stable, thereby supports retaining plate 11, shares the partial power that applies in retaining plate 11, improves the retaining effect that retains retaining plate 11.
Referring to fig. 5 and 6, the separating unit 4 includes a separating rod 41, the separating rod 41 slides along the height direction of the base 1, the separating rod 41 is connected to the pawl 32, one end of the separating rod 41 near the side wall of the base 1 is hinged to a limiting rod 411, the rotation center line of the limiting rod 411 is parallel to the height direction of the base 1, a plurality of engaging grooves 13 are formed in the base 1 corresponding to the limiting rod 411, the engaging grooves 13 are used for the engagement of the limiting rod 411, the number of the engaging grooves 13 in this embodiment is 2, and the engaging grooves 13 are arranged along the height direction of the base 1.
In a normal state, the limiting rod 411 is embedded in the clamping groove 13 far away from the supporting rod 2, so that the connection between the supporting rod 2 and the base 1 is stable, when the supporting rod 2 and the base 1 need to be separated, the limiting rod 411 is rotated to be separated from the clamping groove 13, the limiting rod 411 slides along the height direction of the base 1, the separating rod 41 is driven to slide, the pawl 32 is driven to be separated from the ratchet 31, the limiting rod 411 is embedded in the clamping groove 13 close to the supporting rod 2, a user does not need to keep the state that the pawl 32 is separated from the ratchet 31, and the user can conveniently separate the supporting rod 2 from the base 1.
Referring to fig. 3, a transmission member 7 for driving the plurality of separation rods 41 to synchronously slide is arranged on the base 1, the transmission member 7 includes a transmission rod 71 slidably arranged on the base 1, and the transmission rod 71 is connected with two adjacent separation rods 41 in a welding manner.
Through the setting of driving medium 7, the user only need slide a release lever 41 and can drive the release lever 41 that links to each other with transfer line 71 and slide to drive a plurality of pawls 32 that link to each other with release lever 41 and the separation of ratchet 31, thereby can take off bracing piece 2 conveniently, make bearing structure's whole area less, subsequent transportation of being convenient for.
Referring to fig. 7 and 8, the supporting rod 2 is provided with an accommodating groove 22, and the accommodating groove 22 is used for accommodating the supporting rod 21, so that the supporting rod 21 is located in the supporting rod 2 in a normal state, the supporting rod 21 is not easily damaged in a transportation process, and the service life of the supporting rod 21 is prolonged. The support rod 21 is welded and connected with a rotating shaft 211, the central axis of the rotating shaft 211 is arranged in parallel to the length direction of the base 1, one end of the support rod 21 close to the ground is fixedly provided with a butting block 212, the butting block 212 is used for butting against the ground, and the bottom surface of the butting block 212 is parallel to the ground. The supporting rod 2 is provided with a sliding groove 23, the sliding groove 23 is used for sliding and connecting the rotating shaft 211, the sliding groove 23 is communicated with the accommodating groove 22, and the supporting rod 2 is provided with a limiting component 5 for limiting the sliding of the supporting rod 2.
When bracing piece 2 and base 1 are stably connected, rotate branch 21 and accepting groove 22 separation, thereby branch 21 to butt piece 212 and the ground butt slide, and then under spacing effect of spacing subassembly 5, make branch 21 carry out the outrigger to bracing piece 2, thereby make bracing piece 2 carry out the outrigger to retaining plate 11, thereby improve the retaining soil effect of retaining soil structure, setting through butt piece 212, the area of contact on increase branch 21 and ground, thereby improve the stability of being connected on branch 21 and ground, make and stably support bracing piece 2, improve the retaining soil effect of retaining soil structure.
Referring to fig. 8, the limiting assembly 5 includes a limiting block 51 slidably disposed on the rotating shaft 211, the limiting block 51 slides along the radial direction of the rotating shaft 211, a limiting groove 24 is disposed on the support rod 2 corresponding to the limiting block 51, the limiting groove 24 is used for the limiting block 51 to be embedded, a driving member 52 for driving the limiting block 51 and the limiting groove 24 is disposed on the support rod 21, the driving member 52 may be a spring or an elastic piece, but it is only necessary to drive an elastic element for embedding the limiting block 51 and the limiting groove 24, and a spring is used in this embodiment. Offer the groove 2111 of accomodating that is used for accommodating stopper 51 on the pivot 211, the one end of spring is glued with the one end that stopper 51 kept away from spacing groove 24 and is linked to each other, and the other end of spring is glued with the inner wall of accommodating groove 2111 and is linked to each other. The support rod 2 is provided with a driving piece 6 for driving the limit block 51 to be separated from the limit groove 24.
After bracing piece 2 and base 1 are stably connected, rotate branch 21 and accepting groove 22 separation, branch 21 to butt piece 212 slide with ground looks butt back, under the driving action of driving piece 52, stopper 51 automatic sliding to with spacing groove 24 gomphosis, and then branch 21, bracing piece 2 and ground enclose out stable triangle-shaped, thereby branch 21 stably supports bracing piece 2, improve the bracing piece 2 to the supporting effect who keeps off native board 11, and then improve the fender soil effect that keeps off native board 11, through the setting of driving piece 6, after the construction, can separate stopper 51 and spacing groove 24, make branch 21 be located bracing piece 2, reduce the area of bracing piece 2, be convenient for transport.
Referring to fig. 7 and 8, driving piece 6 includes driving rod 61 and driving rope 62, and driving rod 61 rotates to be connected on branch 21, and the central axis of driving rod 61 is on a parallel with 1 width direction of base, and the one end that drives rope 62 splices with driving rod 61 and links to each other, and the other end that drives rope 62 splices with the one end that spacing groove 24 was kept away from to stopper 51 and links to each other.
After the engineering, rotate drive rod 61 rolling and drive rope 62, and then drive and drive stopper 51 that rope 62 links to each other and keep away from spacing groove 24 and slide for branch 21 can slide along spout 23, thereby slide branch 21 and imbed in the accepting groove 22, be convenient for follow-up transportation to bracing piece 2.
The implementation principle of foundation ditch retaining structure for housing construction of the embodiment of this application is: through bracing piece 2 and the base 1 is detachable fixed continuous, when the pressure that keeps off soil board 11 and bear is too big, through the erection bracing board, carry out the outrigger to keeping off soil board 11 to improve the fender soil effect of retaining soil structure, through fixing device 3's setting, make the bracing piece 2 and base 1 between be connected stably, thereby further improve the support to keeping off soil board 11, thereby further improve the fender soil effect of retaining soil structure.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a foundation ditch retaining structure for housing construction, includes base (1) and sets up fender breast board (11) on base (1), its characterized in that: the utility model discloses a foundation ditch, including base (1), bracing piece (2), the one end butt at foundation ditch edge is kept away from with fender native board (11) to the periphery of bracing piece (2), be provided with fixed slot (12) on base (1), fixed slot (12) are used for supplying bracing piece (2) bottom gomphosis, be provided with fixing device (3) that are used for maintaining bracing piece (2) bottom and fixed slot (12) gomphosis state on base (1), be provided with on base (1) and be used for relieving bracing piece (2) bottom and fixed slot (12) gomphosis state separable set (4).
2. The retaining structure for foundation pit of building construction according to claim 1, characterized in that: the fixing device (3) comprises a ratchet (31) and a pawl (32) which are meshed with each other, the ratchet (31) is fixedly connected to the side wall of the fixing block, the pawl (32) is rotatably connected to the base (1), and an elastic part (33) used for driving the pawl (32) to be meshed with the ratchet is arranged on the base (1).
3. The retaining structure for foundation pit of house building according to claim 2, characterized in that: the separation part (4) comprises a separation rod (41) which is arranged on the base (1) in a sliding mode, the separation rod (41) slides along the height direction of the base (1), the separation rod (41) is connected with the pawl (32), and a transmission piece (7) which is used for driving the bottoms of the support rods (2) to be released from the embedded state of the fixing grooves (12) is arranged on the base (1).
4. The retaining structure for foundation pit of house building according to claim 3, characterized in that: the transmission piece (7) comprises a transmission rod (71) which is arranged on the base (1) in a sliding mode, and the transmission rod (71) is connected with the two adjacent separating rods (41).
5. The retaining structure for foundation pit of house building according to claim 3, characterized in that: the utility model discloses a separation pole, including separation pole (41), spacing pole (411) are connected with in the rotation, the direction of height of spacing pole (411) is on a parallel with base (1) in the direction of rotation central line of spacing pole (411), it is provided with a plurality of block groove (13) to correspond spacing pole (411) on base (1), block groove (13) are arranged along base (1) direction of height and are set up, block groove (13) are used for supplying spacing pole (411) gomphosis.
6. The retaining structure for foundation pit of building construction according to claim 1, characterized in that: the utility model discloses a supporting rod, including bracing piece (2), be provided with on bracing piece (2) and be used for acceping the accepting groove (22) of branch (21), be provided with spout (23) on bracing piece (2), spout (23) are used for sliding with branch (21) and are connected, be provided with on bracing piece (2) and be used for restricting spacing subassembly (5) that branch (21) slided.
7. The retaining structure for foundation pit of building construction according to claim 6, characterized in that: spacing subassembly (5) include stopper (51), be provided with pivot (211) on bracing piece (2), pivot (211) are on a parallel with base (1) length direction and set up, stopper (51) slide and set up on pivot (211), stopper (51) slide along the length direction who is on a parallel with base (1), be provided with a plurality of spacing grooves (24) that are used for supplying stopper (51) gomphosis on bracing piece (2), be provided with driving piece (52) that are used for driving stopper (51) and spacing groove (24) gomphosis on bracing piece (2), be provided with on bracing piece (2) and be used for driving piece (6) that stopper (51) and spacing groove (24) separated.
8. The retaining structure for foundation pit of building construction according to claim 7, wherein: the driving piece (6) comprises a driving rod (61) and a driving rope (62), the driving rod (61) is rotatably connected to the supporting rod (21), one end of the driving rope (62) is connected with the driving rod (61), and the other end of the driving rope (62) is connected with the limiting block (51).
9. The retaining structure for foundation pit of building construction according to claim 6, characterized in that: one end, far away from the rotating shaft (211), of the support rod (21) is provided with a butt joint block (212), and the butt joint block (212) is used for being abutted to the ground.
CN202120561173.6U 2021-03-18 2021-03-18 Foundation ditch retaining structure for housing construction Active CN214328904U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120561173.6U CN214328904U (en) 2021-03-18 2021-03-18 Foundation ditch retaining structure for housing construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120561173.6U CN214328904U (en) 2021-03-18 2021-03-18 Foundation ditch retaining structure for housing construction

Publications (1)

Publication Number Publication Date
CN214328904U true CN214328904U (en) 2021-10-01

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ID=77889653

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Application Number Title Priority Date Filing Date
CN202120561173.6U Active CN214328904U (en) 2021-03-18 2021-03-18 Foundation ditch retaining structure for housing construction

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Country Link
CN (1) CN214328904U (en)

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