CN117266185B - Excavation slope protection equipment for rock foundation pit - Google Patents
Excavation slope protection equipment for rock foundation pit Download PDFInfo
- Publication number
- CN117266185B CN117266185B CN202311567062.6A CN202311567062A CN117266185B CN 117266185 B CN117266185 B CN 117266185B CN 202311567062 A CN202311567062 A CN 202311567062A CN 117266185 B CN117266185 B CN 117266185B
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- Prior art keywords
- slope protection
- action
- connecting ring
- rod
- foundation pit
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 15
- 239000011435 rock Substances 0.000 title claims abstract description 15
- 230000009471 action Effects 0.000 claims abstract description 132
- 239000002689 soil Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/202—Securing of slopes or inclines with flexible securing means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a square excavation slope protection device for a rock foundation pit, which relates to the field of slope protection, wherein a plurality of first connecting rings and a plurality of second connecting rings which are in one-to-one correspondence are respectively arranged at the joint of two adjacent slope protection nets, the first connecting rings and the second connecting rings which are mutually corresponding form a hollow circle, and the first connecting rings and the second connecting rings can circumferentially rotate on the corresponding slope protection nets; the junction of two adjacent bank protection nets is provided with first action pole and second action pole respectively, and first action pole and first go-between meshing, second action pole and second go-between meshing, and first action pole and second action pole are rotatory, make first go-between and second go-between syntropy circumference rotation 90 degrees. Through second action pole and first action pole rotation, make the first go-between and the second go-between of the junction of two adjacent slope protection nets rotate, realize the quick connect of two slope protection nets, simplified the operation, improved connecting efficiency.
Description
Technical Field
The invention relates to the field of slope protection, in particular to a square excavation slope protection device for a rock foundation pit.
Background
In the construction process of foundation pit construction, in order to protect the bottom of a foundation pit, a foundation pit slope protection is usually arranged on the soil slope around a foundation pit support, and the foundation pit slope protection is covered on a soil layer to prevent soil from flowing to the bottom of the pit caused by soil slope collapse due to rain wash of the soil layer, so that the phenomenon of silt or quicksand at the bottom of the pit is caused, and normal construction is influenced.
The conventional foundation pit slope protection adopts a concrete spray anchor construction method, namely binding reinforcing steel meshes and protective nets on the slope surface of the foundation pit, arranging water discharge holes, and then spraying concrete under high pressure to form a reinforced concrete surface layer slope protection with the thickness of about 8 centimeters so as to prevent water and soil loss of the slope soil layer.
However, the protection net is usually assembled by adopting a plurality of small protection nets, operators are required to assemble between two adjacent protection nets in the actual operation process, each node is required to be riveted by iron wires, the operation is troublesome and the construction time is long. The spliced protective net is easy to slide and fall off in the use process, and the protective effect is poor.
Disclosure of Invention
The invention aims to provide a square excavation slope protection device for a rock foundation pit, which is convenient and fast to operate, stable in connection and not easy to fall off by rapidly and conveniently completing connection between two slope protection nets through a first connecting ring and a second connecting ring and a first action rod and a second action rod at the joint of the slope protection nets.
The purpose is realized by adopting the following technical scheme:
the utility model provides a rock foundation pit's side slope protection equipment of digging, includes a plurality of bank protection nets, and the junction of two adjacent bank protection nets is provided with a plurality of first go-between and a plurality of second go-between of one-to-one respectively, and specific, one of them bank protection net's junction is provided with a plurality of first go-between, and another bank protection net's junction is provided with a plurality of second go-between, and first go-between and second go-between one-to-one on two bank protection nets, and when two bank protection nets are connected, corresponding first go-between and second go-between constitute hollow circle.
The junction of one of them bank protection net is provided with a plurality of adapter sleeves, and a plurality of first go-between are connected respectively in a plurality of adapter sleeves, and the junction of another bank protection net is provided with a plurality of adapter sleeves, and a plurality of second go-between are connected respectively in a plurality of adapter sleeves, and the effect of adapter sleeve is fixed first go-between and second go-between.
When the first connecting ring and the second connecting ring form a hollow circle and rotate by 90 degrees in the same direction and circumference, one end of the first connecting ring rotates from the connecting sleeve of one slope protection net to the connecting sleeve of the other slope protection net, and the other end of the first connecting ring is still positioned in the connecting sleeve of the other slope protection net. One end of the second connecting ring rotates from the connecting sleeve of the other slope protection net to the connecting sleeve of one slope protection net, and the other end of the second connecting ring is still positioned in the connecting sleeve of the other slope protection net. The two slope protection nets are mutually connected through the first connecting ring and the second connecting ring.
The first connecting ring and the second connecting ring are rotated to realize the interconnection of the two slope protection nets, various technical means for rotating the first connecting ring and the second connecting ring can be realized through manual rotation or other structures, and for the device, in order to further simplify the operation, the inventor designs a first acting rod and a second acting rod on the basis of the structure, the first acting rod is meshed with a plurality of first connecting rings, the second acting rod is meshed with a plurality of second connecting rings, and the first acting rod and the second acting rod rotate to enable the first connecting ring and the second connecting ring to rotate by 90 degrees in the same direction and circumference. The straight line where the first action rod and the second action rod are located is perpendicular to the axes of the first connecting ring and the second connecting ring, gears are arranged on the first connecting ring and the second connecting ring and meshed with the first action rod and the second action rod, and then when the first action rod and the second action rod rotate circumferentially, the first connecting ring and the second connecting ring rotate circumferentially in the same direction. Preferably, the slope protection net is provided with at least three first connecting rings and second connecting rings.
Compared with the prior art, on connecting two adjacent slope protection nets, the first action rod and the second action rod can be directly rotated by an operator to adjust all first connecting rings and second connecting rings of the slope protection nets to rotate, each slope protection net does not need to be independently adjusted, the operation is greatly simplified, and the two adjacent slope protection nets can be firmly connected, so that the separation of the adjacent slope protection nets can be effectively avoided, and the slope protection net is more convenient to use for a long time.
When two adjacent slope protection nets are preliminarily connected, namely, when a hollow circle formed by the first connecting ring and the second connecting ring is not rotated, the expansion part to be expanded of the expansion bolt is preliminarily connected in the hollow circle, the expansion part to be preliminarily connected with the foundation pit, the position of the hollow circle is fixed, then the first connecting ring and the second connecting ring are rotated, two adjacent slope protection nets are connected, after connection, the expansion bolt is further connected, the expansion part to be expanded is expanded in the foundation pit and the inner ring of the hollow circle, the first connecting ring and the second connecting ring are further fixed to be connected with the foundation pit, meanwhile, the expansion part is acted on the inner ring of the hollow circle, the friction force between the expansion part and the hollow circle is increased, and the circumferential rotation of the first connecting ring and the second connecting ring is avoided to enable the two slope protection nets to be separated.
Specifically, when the first acting rod and the second acting rod are respectively meshed with the first connecting ring and the second connecting ring, so that the first connecting ring and the second connecting ring circumferentially rotate, the first connecting ring and the first acting rod can be connected through a gear, and the second connecting ring and the second acting rod are also connected through the gear; the first action rod and the second action rod are respectively provided with a plurality of spring sections, the first connecting ring and the second connecting ring are respectively provided with corresponding gears, the spring sections are meshed with the gears, and the first action rod and the second action rod are flexible rods. The length of the first action rod and the second action rod is not less than the height of the slope protection net.
Wherein the flexible pole is the flexible pole that can crooked to arbitrary shape, the benefit of flexible pole and spring section is the slope protection net when accomodating, through acting on first action pole and second action pole, the slope protection net can crooked folding, be convenient for operate and use, simultaneously to the foundation ditch of different structures, can be with the upper end bending of first action pole and second action pole for different angles, and then be applicable to the structure that one end is located the top of foundation ditch, the other end is located the side of foundation ditch, be applicable to the foundation ditch of different angles, more be convenient for widely used.
On the basis, in order to further improve the connection stability between the two slope protection nets, the inventor is provided with a plurality of locking pieces on the first action rod and the second action rod, and the locking pieces are in one-to-one correspondence with the hollow circles; the locking piece comprises two connecting blocks and two connecting grooves, wherein one connecting block and one connecting groove are positioned on the first action rod, and the other connecting block and the other connecting groove are positioned on the second action rod; the connecting block on the first action rod and the connecting groove on the second action rod are positioned on the same height, and the connecting groove on the first action rod and the connecting block on the second action rod are positioned on the same height; the connecting block on the first action rod is connected with a first connecting plate with a telescopic length, and the first connecting plate is meshed with the first connecting ring; the connecting block on the second action rod is connected with a second connecting plate with a telescopic length, and the second connecting plate is meshed with the second connecting ring;
when the first connecting ring and the second connecting ring rotate circumferentially, the first connecting plate is extended, one end of the first connecting plate is inserted into the connecting groove on the second acting rod, the second connecting plate is extended, and one end of the second connecting plate is inserted into the connecting groove on the first acting rod.
After the first connecting plate and the second connecting plate are respectively inserted on the second action rod and the first action rod, the second action rod and the first action rod cannot circumferentially rotate, and then the first connecting ring and the second connecting ring are controlled to be fixed in position, so that the fixed connection of two adjacent slope protection nets is realized, the separation of the two slope protection nets is further avoided, and the use efficiency is improved.
Further, the slope protection net comprises two small slope protection nets, the two small slope protection nets are connected through a flexible connecting piece, and the flexible connecting piece can enable the included angle between the two small slope protection nets to be 0-180 degrees. The flexible connecting piece has two effects, and one of them, the flexible connecting piece is located the center department of two little bank protection nets, to being separated into the further connection of two little bank protection nets, compares with the slope protection net that is a slice holistic directly, and the flexible connecting piece has stabilized the steadiness between two little bank protection nets, avoids taking place to break away from between the center department of slope protection net and the foundation ditch, has improved the guard action effect of slope protection net. And two, the flexible connecting piece enables the two small slope protection nets to be placed in a spreading manner, and can be placed in an overlapping manner, so that the slope protection nets are convenient to store and use.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the excavation slope protection equipment for the rock foundation pit, the second action rod and the first action rod rotate, so that the first connecting ring and the second connecting ring at the joint of two adjacent slope protection nets rotate, and the two slope protection nets are connected quickly. This device does not need operating personnel to connect the operation one by one in the junction, and direct rotation first action bars and second action bars can, has simplified the operation, has improved connection efficiency.
The device is connected simultaneously on two slope protection nets through the first connecting ring and the second connecting ring, can realize firm connection, is difficult to separate between two slope protection nets, improves the connection steadiness.
And, this device inserts respectively on second action pole and first action pole through first connecting plate and second connecting plate after, makes first action pole and second action pole fixed, does not carry out circumference rotation, and then further fixed first go-between and second go-between's position, avoids further emergence rotation to make the bank protection net separation.
Simultaneously, all first connecting plates, second connecting plates, first connecting rings and second connecting rings at the junction are all operated through the rotation of first action bars and second action bars, and when locking, first connecting plates, second connecting plates insert second action bars and first action bars and also realize through rotatory first action bars and second action bars simultaneously, need not unnecessary operation, more be convenient for operation use.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic view of the slope protection net structure in embodiment 1;
FIG. 2 is a schematic view of the structure of the embodiment 1 when two adjacent slope protection nets are connected;
FIG. 3 is a schematic view showing the structure of the locking member in accordance with embodiment 2 in which both the first connecting plate and the second connecting plate are shortened;
FIG. 4 is a schematic view showing the elongated structures of the first and second connection plates in the locking member of embodiment 2;
FIG. 5 is a schematic view showing the original state of the spring section and the gear in embodiment 3;
FIG. 6 is a schematic view showing the elongation structures of the first and second connection plates after the spring section and the gear rotate in embodiment 3;
fig. 7 is a sectional view of the slope protection net in example 4 at the connecting groove.
In the drawings, the reference numerals and corresponding part names:
the slope protection device comprises a small slope protection net, a first action rod, a first connecting ring, a first connecting plate, a second connecting ring, a second action rod, a second connecting plate, a flexible connecting piece, a connecting block, a slope protection net, a lower slope protection net, a connecting groove and a spring section, wherein the small slope protection net is arranged at the bottom of the slope protection net, the first action rod, the first connecting ring, the first connecting plate, the second connecting ring, the second action rod, the second connecting plate, the flexible connecting piece, the connecting block and the spring section.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.
Example 1
As shown in fig. 1-2, including a plurality of slope protection nets, two adjacent slope protection nets are first slope protection net and second slope protection net respectively, the junction of first slope protection net is provided with three first go-between 3, the junction of second slope protection net is provided with three second go-between 5, three first go-between 3 and three second go-between 5 one-to-one, three first go-between 3 and three second go-between 5 are the semicircle form, and when first slope protection net and second slope protection net are connected, as shown in fig. 2, hollow circle is constituteed to corresponding first go-between 3 and second go-between 5, the both ends of first go-between 3 contact with the both ends of second go-between 5. The junction of first bank protection net is provided with the adapter sleeve, and the adapter sleeve is hollow rubber adapter sleeve, and every first go-between 3 corresponds two adapter sleeves, and the both ends of first go-between 3 are connected with two adapter sleeves respectively. The junction of second bank protection net is provided with the adapter sleeve, and the adapter sleeve is hollow rubber adapter sleeve, and every second go-between corresponds two adapter sleeves, and the both ends of second go-between are connected with two adapter sleeves respectively.
The first slope protection net is provided with a first action rod 2, the second slope protection net is provided with a second action rod 6, the first action rod 2 is meshed with three first connecting rings 3, the second action rod 6 is meshed with three second connecting rings 5, when the first action rod 2 and the second action rod 6 rotate, the first connecting rings 3 and the second connecting rings 5 rotate by 90 degrees in the same direction and in the circumferential direction, one end of the first connecting ring 3 moves from a connecting sleeve which corresponds to the first slope protection net and is positioned below to a connecting sleeve which is positioned above, and the other end of the first connecting ring 3 moves from a connecting sleeve which corresponds to the first slope protection net and is positioned above to a connecting sleeve which corresponds to the second slope protection net. One end of the second connecting ring 5 moves from the connecting sleeve corresponding to the second slope protection net and positioned below to the connecting sleeve corresponding to the first slope protection net, and the other end of the second connecting ring moves from the connecting sleeve corresponding to the second slope protection net and positioned above to the connecting sleeve positioned below, so that the fixed connection of the first slope protection net and the second slope protection net is realized.
In some embodiments, the first action rod and the second action rod are respectively provided with a gear, the first connecting ring and the second connecting ring are respectively provided with a corresponding gear, the gears of the first action rod are meshed with the gears of the first connecting ring, the gears of the second action rod are meshed with the gears of the second connecting ring, and when the first action rod and the second action rod rotate, the first connecting ring and the second connecting ring are driven to rotate in the same direction and in the circumferential direction.
Example 2
On the basis of the embodiment 1, as shown in fig. 3, a plurality of locking pieces are arranged on the first action rod 2 and the second action rod 6, and the locking pieces are in one-to-one correspondence with the hollow circles; when there are three first connection rings 3 and three second connection rings 5, the device has three locking elements comprising two connection blocks 9, two connection slots 12, a first connection plate 4 with a telescopic length and a second connection plate 7 with a telescopic length. One of the connecting blocks 9 and one of the connecting grooves 12 are positioned on the first action bars 2, and the other connecting block 9 and the other connecting groove 12 are positioned on the second action bars 6; and the connecting block 9 on the first action bar 2 and the connecting groove 12 on the second action bar 6 are positioned at the same height, and the connecting groove 12 on the first action bar 2 and the connecting block 9 on the second action bar 6 are positioned at the same height.
The connecting block 9 on the first action bar 2 is connected with one end of the first connecting plate 4, the first connecting plate 4 is meshed with the first connecting ring 3, the first connecting plate 4 comprises two connecting plates connected in a sleeved mode, gears are arranged on the connecting plates located outside, after the connecting plates located outside move, the connecting plates located inside are exposed, and the first connecting plate 4 stretches.
The connecting block 9 on the second action bars 6 is connected with one end of the second connecting plate 7, the second connecting plate 7 is meshed with the second connecting ring 5, the second connecting plate 7 comprises two connecting plates connected in a sleeved mode, gears are arranged on the connecting plates located outside, after the connecting plates located outside move, the connecting plates located inside are exposed, and the second connecting plate 7 stretches.
In the original state, as shown in fig. 3, both the first connection plate and the second connection plate are in the shortened original state. When the first and second connection rings 3 and 5 are rotated in the circumferential direction, as shown in fig. 4, the first connection ring 3 is engaged with a gear on the first connection plate and drives the connection plate outside the first connection plate to move until being inserted into the connection groove 12 at the same height. The second connecting ring 5 is meshed with a gear on the second connecting plate 7 and drives the connecting plate outside the second connecting plate to move until the connecting plate is inserted into the connecting groove 12 at the same height.
In this embodiment, the positions of the connecting grooves are set, when the first connecting ring 3 and the second connecting ring 5 are rotated by 90 degrees in the circumferential direction, the axis of one connecting groove 12 is collinear with the axis of the first connecting plate 4, the axis of the other connecting groove 12 is collinear with the axis of the second connecting plate 7, one end of the first connecting plate is inserted into the second acting rod 6, one end of the second connecting plate 7 is inserted into the first acting rod 2, and at this time, the first acting rod 2 and the second acting rod 6 are locked and do not rotate in the circumferential direction.
In this embodiment, the connecting block 9 on the first action bar 2 can circumferentially rotate on the first connecting plate 4, the connecting block 9 on the second action bar 6 can circumferentially rotate on the second connecting plate 7, the connecting block on the first action bar circumferentially rotates together with the first action bar, a rotating groove is formed in the side face of the connecting block, one end of the first connecting plate 4 is connected in the rotating groove of the connecting block, and when the connecting block circumferentially rotates together with the first action bar, one end of the first connecting plate is in the rotating groove.
The connecting block on the second action bar rotates along with the second action bar in the circumferential direction, a rotating groove is formed in the side face of the connecting block of the second action bar, one end of the second connecting plate 7 is connected in the corresponding rotating groove, and when the connecting block rotates along with the second action bar in the circumferential direction, one end of the second connecting plate is arranged in the rotating groove. Neither the first connection plate 4 nor the second connection plate 7 rotates.
Example 3
As shown in fig. 5, the first action bar 2 and the second action bar 6 are provided with a plurality of spring segments 13, the first connecting ring 3 and the second connecting ring 5 are provided with corresponding gears, and the spring segments 13 are meshed with the gears. The first action bars 2 and the second action bars 6 are flexible bars. The first action bar 2 and the second action bar 6 comprise flexible connecting rods and rubber layers sleeved on the flexible connecting rods, and spring sections are sleeved on the rubber layers, so that the first action bar 2 and the second action bar 6 can be bent to any angle to be suitable for different slopes when the multifunctional electric motor is used. The length of first action pole 2 and second action pole 6 is not less than the height of bank protection net, and in general bank protection net includes two pavements, has the contained angle between two pavements, and the one end of first action pole 2 and second action pole 6 is located one and lays the surface, can fix a position fast, and the other end is located another and lays the surface, and the crooked required angle of first action pole 2 and second action pole 6, more convenient to use.
In the original state, as shown in fig. 5, the spring section 13 is located between the connecting block 9 and the connecting groove 12, the connecting block 9 on the first acting rod 2 is connected with one end of the first connecting plate 4, the other end of the first connecting plate 4 is meshed with the first connecting ring 3, the connecting block 9 on the second acting rod 6 is connected with one end of the second connecting plate 7, and the other end of the second connecting plate 7 is meshed with the second connecting ring 5.
After the first action bar 2 and the second action bar are rotated, as shown in fig. 6, the first connection plate 4 and the second connection plate 7 are extended, one end of the first connection plate is inserted into the connection groove 12 of the second action bar 6, and one end of the second connection plate 7 is inserted into the connection groove 12 of the first action bar 2.
Example 4
The slope protection net comprises two small slope protection nets 1, the two small slope protection nets 1 are connected through a flexible connecting piece 8, and the flexible connecting piece 8 can enable the included angle between the two small slope protection nets 1 to be 0-180 degrees. When in use, the two small slope protection nets 1 are tiled and positioned on the same plane, the included angle between the two small slope protection nets 1 is 180 degrees, and when in storage, the two small slope protection nets 1 are overlapped and placed, and the included angle between the two small slope protection nets 1 is 0 degree. The flexible connecting piece is of an existing structure.
As shown in fig. 7, the small slope protection net 1 sequentially comprises an upper slope protection net 10 and a lower slope protection net 11 from top to bottom, the first connecting ring 3 and the second connecting ring 5 are located between the upper slope protection net 10 and the lower slope protection net 11, and the first connecting ring 3 and the second connecting ring 5 can both circumferentially rotate on the upper slope protection net 10 and the lower slope protection net 11. The first connection plate 4 and the second connection plate 7 are connected between the upper slope protection net 10 and the lower slope protection net 11, and can move between the upper slope protection net 10 and the lower slope protection net 11. Fig. 7 is a sectional view of the first link 3 and the second link 5 at the connecting groove after rotating 90 degrees, and one end of the second link 7 is inserted into the connecting groove 12 of the first acting lever 2.
When the hollow circle formed by the first connecting ring 3 and the second connecting ring 5 is not rotated, the to-be-expanded part of the expansion bolt is connected in the hollow circle, the to-be-expanded part is initially connected with the foundation pit, the position of the hollow circle is fixed, then the first connecting ring 3 and the second connecting ring 5 are rotated, two adjacent slope protection nets are connected, after connection, the expansion bolt is further connected, the to-be-expanded part is expanded in the foundation pit and the inner ring of the hollow circle, the first connecting ring 3 and the second connecting ring 5 are further fixed to be connected with the foundation pit, meanwhile, the friction force between the expansion part and the hollow circle is increased through the action of the expansion part on the inner ring of the hollow circle, and the first connecting ring 3 and the second connecting ring 5 are prevented from rotating circumferentially to separate the two slope protection nets.
The use of "first," "second," etc. herein is for clarity of description only and is not intended to limit any order or emphasize importance, etc. to distinguish between corresponding components. In addition, the term "coupled" as used herein may be directly coupled or indirectly coupled via other components, unless otherwise indicated.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The utility model provides a rock foundation pit's excavation slope protection equipment, includes a plurality of slope protection nets, and its characterized in that, the junction of two adjacent slope protection nets is provided with a plurality of first go-between (3) and a plurality of second go-between (5) of one-to-one respectively, and first go-between (3) and second go-between (5) the mutual correspondence constitutes hollow circle, and first go-between (3) and second go-between (5) can be at the last circumference rotation of corresponding slope protection net;
the connection parts of two adjacent slope protection nets are respectively provided with a first action rod (2) and a second action rod (6), the first action rods (2) are meshed with the first connecting ring (3), the second action rods (6) are meshed with the second connecting ring (5), the first action rods (2) and the second action rods (6) rotate, the first connecting ring (3) and the second connecting ring (5) rotate by 90 degrees in the same direction and the circumferential direction, and a plurality of locking pieces are arranged on the first action rods (2) and the second action rods (6) and correspond to a plurality of hollow circles one by one; the locking piece comprises two connecting blocks (9) and two connecting grooves (12), wherein one connecting block (9) and one connecting groove (12) are positioned on the first acting rod (2), and the other connecting block (9) and the other connecting groove (12) are positioned on the second acting rod (6); the connecting block (9) on the first action rod (2) and the connecting groove (12) on the second action rod (6) are positioned on the same height, and the connecting groove (12) on the first action rod (2) and the connecting block (9) on the second action rod (6) are positioned on the same height; the connecting block (9) on the first acting rod (2) is connected with a first connecting plate (4) with a telescopic length, and the first connecting plate (4) is meshed with the first connecting ring (3); a connecting block (9) on the second action rod (6) is connected with a second connecting plate (7) with a telescopic length, and the second connecting plate (7) is meshed with the second connecting ring (5); when the first connecting ring (3) and the second connecting ring (5) rotate circumferentially, the first connecting plate (4) is extended, one end of the first connecting plate is inserted into the connecting groove (12) on the second action rod (6), the second connecting plate (7) is extended, and one end of the second connecting plate is inserted into the connecting groove (12) on the first action rod (2).
2. The excavation slope protection device of a rock foundation pit according to claim 1, characterized in that a plurality of connecting sleeves corresponding to each other are respectively arranged at the joint of two adjacent slope protection nets, a first connecting ring (3) is connected in the connecting sleeve of one of the slope protection nets, and a second connecting ring (5) is connected in the connecting sleeve of the other slope protection net.
3. The excavation slope protection equipment for the rock foundation pit according to claim 1, wherein a plurality of spring sections (13) are arranged on the first action rod (2) and the second action rod (6), corresponding gears are arranged on the first connecting ring (3) and the second connecting ring (5), and the spring sections (13) are meshed with the gears.
4. A rock foundation pit excavation slope protection apparatus as claimed in claim 3, characterized in that the first action bars (2) and the second action bars (6) are flexible bars.
5. The excavation slope protection device of a rock foundation pit according to claim 1, characterized in that the slope protection net comprises two small slope protection nets (1), the two small slope protection nets (1) are connected through a flexible connecting piece (8), and the flexible connecting piece (8) can enable an included angle between the two small slope protection nets (1) to be 0-180 degrees.
6. The excavation slope protection device of a rock foundation pit according to claim 1, wherein the slope protection net sequentially comprises an upper slope protection net (10) and a lower slope protection net (11) from top to bottom, the first connecting ring (3) and the second connecting ring (5) are located between the upper slope protection net (10) and the lower slope protection net (11), and the first connecting ring (3) and the second connecting ring (5) can both circumferentially rotate on the upper slope protection net (10) and the lower slope protection net (11).
7. The excavation slope protection equipment of the rock foundation pit according to claim 1, characterized in that at least three first connecting rings (3) and second connecting rings (5) are arranged on the slope protection net.
8. The excavation slope protection apparatus of a geotechnical foundation pit according to claim 4, wherein the length of the first action bars (2) and the second action bars (6) is not less than the height of the slope protection net.
9. The excavation slope protection equipment of the rock foundation pit according to claim 1, characterized in that the hollow circle formed by the first connecting ring (3) and the second connecting ring (5) is connected with the foundation pit through expansion bolts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311567062.6A CN117266185B (en) | 2023-11-23 | 2023-11-23 | Excavation slope protection equipment for rock foundation pit |
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| CN202311567062.6A CN117266185B (en) | 2023-11-23 | 2023-11-23 | Excavation slope protection equipment for rock foundation pit |
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| CN117266185B true CN117266185B (en) | 2024-02-13 |
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