CN116733005A - Temporary support device for underground foundation pit construction - Google Patents
Temporary support device for underground foundation pit construction Download PDFInfo
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- CN116733005A CN116733005A CN202310716214.8A CN202310716214A CN116733005A CN 116733005 A CN116733005 A CN 116733005A CN 202310716214 A CN202310716214 A CN 202310716214A CN 116733005 A CN116733005 A CN 116733005A
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- support ring
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- support
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000005553 drilling Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000017105 transposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- 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
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- 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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- 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
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- 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)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of foundation pit supports, and discloses a temporary support device for underground foundation pit construction. According to the invention, the uppermost support ring of the support device is arranged at the top end of the foundation pit, when the first support plate is extruded by the inner wall of the foundation pit, the first support plate and the second support plate push the support ring to generate upward moving force through the sliding rail, the first curved rod, the rotary seat and the second curved rod, the support ring drives the sliding sleeve fixedly connected with the support ring to generate upward moving trend along the sliding rod, but as the bottom plane of the clamping hole at one side of the sliding sleeve close to the support ring is contacted with the plane at the bottom end of the clamping block, the sliding sleeve is limited to slide upward along the sliding rod, so that the support ring can only move downward and not move upward, and the whole inner wall of the foundation pit is supported rapidly.
Description
Technical Field
The invention belongs to the technical field of foundation pit supports, and particularly relates to a temporary support device for underground foundation pit construction.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation. In engineering construction, when the foundation pit is a large or deep foundation pit, the inner wall of the foundation pit is required to be supported so as to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.
The existing supporting mode of the foundation pit is that after the foundation pit is dug, a large number of iron sheets are sequentially attached to the inner wall of the foundation pit, a large number of supporting rods are arranged on the inner sides of the iron sheets in a crossing mode, and the adjacent supporting rods are fixed through threads, so that when the foundation pit is used, a large number of iron sheets and a large number of supporting rods are required to be sequentially installed, the installation speed is low, the efficiency is low, and meanwhile the problem of slow disassembly is solved; in addition, the existing foundation pit hole digging device drills downwards through an overlength thread drilling arm on the machine, so that the drilling depth and the diameter are limited by the length and the strength of the thread drilling arm, a foundation pit with large depth and large diameter cannot be drilled, in addition, after the drilling is finished, the thread drilling arm is needed, the supporting device can be installed only after the foundation pit is taken out, collapse is extremely easy to occur when the supporting device is installed, and the drilling is needed again and potential safety hazards are caused.
Disclosure of Invention
The invention aims to provide a temporary support device for underground foundation pit construction, which aims to solve the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an underground foundation pit construction is with temporary support device, includes a plurality of ring, a plurality of ring equidistance parallel arrangement, a plurality of the axis coincidence of ring, a plurality of the spout has all been seted up to the lateral surface of ring, and is adjacent two the middle part circumference equidistance of ring is equipped with multiunit stop gear, a plurality of the equal sliding sleeve in middle part of spout has a plurality of transposition, the quantity of transposition is even, and a plurality of the one end that the ring was kept away from to the transposition has all been movably sleeve the first curved bar, and is adjacent two first curved bar cross movable connection, adjacent two the one end that the ring was kept away from to the first curved bar slides and has cup jointed the slide rail, a plurality of the one end that the ring was kept away from to the slide rail is equal fixed mounting have first backup pad, and is a plurality of the equal sliding sleeve in middle part of first backup pad is close to the bottom both sides of a ring side first telescopic sleeve, a plurality of the second backup pad is close to the equal sliding sleeve in middle part both sides of a side of ring have with first backup pad sliding sleeve's first curved bar, adjacent movable sleeve has two sets of telescopic link's second movable sleeve has adjacent movable sleeve's bottom surface, two adjacent movable sleeve has the second curved bar cross movable sleeve has the bottom.
Preferably, the stop gear includes slide bar and sliding sleeve, the top fixed mounting of slide bar is at the lower surface of a ring, the bottom fixed mounting of sliding sleeve is at the upper surface of a ring, the slide bar slides and cup joints at the middle part of sliding sleeve, a plurality of mounting holes have been seted up to the slide bar near a ring side equidistance, one side fixed mounting that the ring was kept away from to the mounting hole inner chamber has first elastic pad, one end fixed mounting that first elastic pad was close to the ring has the fixture block, one side fixed mounting that the slide bar middle part is close to the ring inserts the gag lever post of establishing at the fixture block middle part, one side equidistance that the sliding sleeve is close to the ring is equipped with multiunit and fixture block slip joint's draw-in hole, the upper portion that a ring one side was kept away from to the draw-in hole is equipped with the inclined plane, a plurality of the spout has all been seted up to the lateral surface of ring.
Preferably, the drilling mechanism comprises a plurality of groups of guide rods, a plurality of groups of guide rods are respectively in sliding sleeve joint with adjacent guide grooves, a plurality of groups of installation grooves are fixedly arranged in the middle of the guide rods, a plurality of groups of installation grooves are formed in the circumference of the upper part of the installation seat at equal intervals, a second elastic piece is fixedly arranged on one side, close to a limiting mechanism, of an inner cavity of each installation groove, a pushing block in sliding sleeve joint with the adjacent installation groove is fixedly arranged on one side, close to the limiting mechanism, of each second elastic piece, a first inner gear ring is fixedly arranged on one side of the upper surface of the installation seat in a sliding sleeve joint manner, a first driving gear engaged with the first inner gear ring is fixedly arranged on one side of the upper surface of the installation seat, a pressing block in sliding sleeve joint with the adjacent installation grooves is fixedly arranged on the outer side of each second elastic piece, a second inner gear ring is fixedly arranged on the inner side of each pressing block, a second driving gear ring is fixedly arranged on the top end of the upper surface of the installation seat, a rotary drill is arranged on the top of the rotary drill, and the rotary drill is arranged on the top of the steel wire drill.
Preferably, the support ring is an equilateral polygon, and is made of a material with high quality and high strength.
The beneficial effects of the invention are as follows:
1. according to the invention, the uppermost support ring of the support device is arranged at the top end of the foundation pit, the support ring below the uppermost support ring is subject to self gravity to move downwards, the downward moving support ring drives the first support plate to move towards one side far away from the support ring through the swivel mount, the second curved bar, the first curved bar and the sliding rail, the first support plate drives the second support plate to move towards one side far away from the support ring, the first support plate and the second support plate are in contact with the inner wall of the foundation pit, the downward moving support ring stops moving downwards at the moment, the downward moving support ring drives the sliding sleeve fixedly connected with the downward moving support ring to move downwards along the side face of the sliding bar, otherwise, when the first support plate is extruded by the inner wall of the foundation pit, the first support plate and the second support plate reversely push the support ring to generate upward moving force through the sliding rail, the first curved bar, the swivel mount and the second curved bar, the support ring drives the upward moving trend of the support ring fixedly connected with the first support plate, but the sliding sleeve is limited to slide upwards along the plane of the bottom end of the clamping hole of the sliding sleeve, so that the sliding sleeve only can not move upwards along the plane of the bottom end of the clamping block, and the whole foundation pit can not be supported quickly.
2. According to the invention, after the position of the upper support ring is fixed, when the diameter of the inner wall of the foundation pit below the upper support ring is increased, the downward movement displacement of the lower support ring is increased, so that the expansion diameters of the first support plate and the second support plate are increased, the first support plate and the second support plate can still be clung to the inner wall of the foundation pit, otherwise, when the diameter of the inner wall of the foundation pit below the upper support ring is reduced, the downward movement distance of the lower support ring is reduced, so that the expansion diameters of the first support plate and the second support plate are reduced, the first support plate and the second support plate can still be clung to the inner wall of the foundation pit, the expansion diameters of the first support plate and the second support plate are automatically and rapidly adjusted according to the change of the diameters of the inner wall of the foundation pit, the first support plate and the second support plate are always clung to the inner wall of the foundation pit, and the problem that the first support plate and the second support plate are clung to the convex parts of the inner wall of the foundation pit and the concave parts of the first support plate and the inner wall of the foundation pit generate gaps is avoided, so that the support strength is reduced.
3. According to the invention, the second driving piece is started, the output shaft of the second driving piece drives the second inner gear ring to rotate through the second driving gear, the convex part on the outer side surface of the second inner gear ring is separated from the pressing block, the pressing block fixedly connected with the second elastic piece is pulled to move towards one side close to the support ring by the second elastic piece, the lower surface of the pressing block is separated from the upper surface of the bottommost support ring, then the first driving piece is started, the output shaft of the first driving piece drives the first inner gear ring to rotate through the first driving gear, the convex part on the outer side surface of the first inner gear ring pushes the push block to move towards one side far away from the support ring, the push block pushes the clamping block to move into the clamping hole, so that the support ring can drive the sliding sleeve to move upwards along the sliding rod, meanwhile, the upper surface of the bottom of the push block contacts with the bottom surface of the bottommost support ring, finally, the rotary lifter drives the traction steel wire to shrink, the drilling machine drives the mounting seat to move upwards, the support seat drives the bottommost support ring to move upwards, and the support ring above the support ring to move through the push block, and the support device is mounted at the same time.
Drawings
FIG. 1 is a schematic view of the overall appearance of the structure of the present invention;
FIG. 2 is a schematic view of a structural support ring of the present invention;
FIG. 3 is a diagram illustrating a structure of the present invention;
FIG. 4 is a schematic view of a second curved bar of the present invention;
FIG. 5 is a schematic view of a structural transfer machine according to the present invention;
FIG. 6 is a schematic diagram of a structural drill rig of the present invention;
FIG. 7 is a schematic view of a first driving member of the present invention;
fig. 8 is a schematic view of a first ring gear of the structure of the present invention;
FIG. 9 is a schematic view of a structural stop lever of the present invention;
FIG. 10 is a schematic view of a slide bar of the present invention;
FIG. 11 is a schematic view of a structural slip sleeve of the present invention;
FIG. 12 is a schematic view of a block according to the present invention.
In the figure: 1. a support ring; 101. a chute; 102. a guide groove; 2. a limiting mechanism; 201. a slide bar; 202. a sliding sleeve; 203. a first elastic pad; 204. a clamping block; 205. a limit rod; 3. rotating base; 4. a first curved bar; 5. a slide rail; 6. a first support plate; 7. a second support plate; 8. a first telescoping sleeve; 9. the second telescopic sleeve; 10. a connecting rod; 11. a second curved bar; 12. a drilling mechanism; 1201. a guide rod; 1202. a mounting base; 1203. a mounting groove; 1204. a second elastic member; 1205. a pushing block; 1206. a first ring gear; 1207. a first drive gear; 1208. a first driving member; 1209. briquetting; 1210. a second ring gear; 1211. a second drive gear; 1212. a second driving member; 1213. a drilling machine; 1214. and (5) a rotating lifter.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 12, the embodiment of the invention provides a temporary support device for underground foundation pit construction, which comprises a plurality of support rings 1, wherein the plurality of support rings 1 are equidistantly and parallelly arranged, sliding grooves 101 are formed in the outer side surfaces of the plurality of support rings 1, central axes of the plurality of support rings 1 are coincident, a plurality of groups of limiting mechanisms 2 are equidistantly arranged on the circumference of the middle part of each adjacent support ring 1, each limiting mechanism 2 comprises a sliding rod 201 and a sliding sleeve 202, the top end of each sliding rod 201 is fixedly arranged on the lower surface of the support ring 1, the bottom end of each sliding sleeve 202 is fixedly arranged on the upper surface of the support ring 1, each sliding rod 201 is in sliding sleeve connection with the middle part of each sliding sleeve 202, a plurality of mounting holes are formed in the side, close to the support ring 1, of the inner cavity of each mounting hole is fixedly provided with a first elastic pad 203, one end, close to the support ring 1, of each first elastic pad 203 is fixedly provided with a clamping block 204, one side, close to the middle part of each sliding rod 201, of each side, close to the support ring 1 is fixedly provided with a limiting rod 205, which is inserted into the middle part of the clamping block 204, the sliding sleeve 202 is provided with a plurality of groups of clamping holes which are in sliding sleeve connection with the clamping blocks 204 at equal intervals on one side close to the supporting ring 1, the upper part of one side of the clamping holes far away from the supporting ring 1 is provided with inclined planes, the outer side faces of the supporting rings 1 are provided with sliding grooves 101, the middle parts of the sliding grooves 101 are respectively in sliding sleeve connection with a plurality of rotating bases 3, the quantity of the rotating bases 3 is even, one ends of the rotating bases 3 far away from the supporting ring 1 are respectively in movable sleeve connection with a first curved rod 4, two adjacent first curved rods 4 are in cross movable connection, one ends of the two adjacent first curved rods 4 far away from the supporting ring 1 are respectively in sliding sleeve connection with a sliding rail 5, one ends of the sliding rails 5 far away from the supporting ring 1 are respectively fixedly provided with a first supporting plate 6, the middle parts of the first supporting plates 6 are respectively in sliding sleeve connection with a second supporting plate 7, two sides of the bottom of one side face of the supporting ring 1 are respectively and symmetrically fixedly provided with a first telescopic sleeve 8, the two sides of the middle part of one side surface of the supporting ring 1 are symmetrically and fixedly provided with second telescopic sleeves 9 which are in sliding sleeve connection with the first supporting plate 6, the bottom surface of the telescopic end of each first telescopic sleeve 8 is fixedly provided with a connecting rod 10 which is fixedly connected with the top surface of the telescopic end of each adjacent second telescopic sleeve 9, the bottoms of the plurality of rotary bases 3 are movably sleeved with second curved rods 11, the adjacent second curved rods 11 are movably sleeved in a crossing manner, the bottom ends of the plurality of second curved rods 11 are movably sleeved with the adjacent lower rotary bases 3, the inner side surfaces of the plurality of supporting rings 1 are symmetrically provided with a plurality of guide grooves 102, and the middle parts of the two guide grooves 102 at the lowest end are slidably provided with drilling mechanisms 12;
when the telescopic support device is used, the support ring 1 at the uppermost part of the support device is arranged at the top end of a foundation pit, the support ring 1 below the support ring 1 is subjected to self gravity to move downwards, the support ring 1 which moves downwards drives the rotary seat 3 which is in sliding sleeve connection with the support ring 1 to move downwards, when the two rotary seats 3 on each side of the support ring 1 which moves downwards, the two second curved bars 11 which are in movable sleeve connection with the support ring are pulled to rotate and close along the inner side of the central axis of the support ring 1, the second curved bars 11 which are adjacent to be close towards the inner side drive the rotary seat 3 which is in movable sleeve connection with the support ring along the middle of the chute 101, the two rotary seats 3 which are adjacent to be close towards the middle drive the two first curved bars 4 which are in movable sleeve connection with the support ring to rotate along the central axis of the middle, the slide rail 5 which is in sliding sleeve connection with the support ring 1 is pushed to move downwards, the slide rail 5 which drives the first support plate 6 to move downwards away from one side of the support ring 1, the first support plate 6 drives the second support plate 7 to move downwards away from one side of the support ring 1, and the first support plate 6 and the second support plate 7 are contacted with the inner wall 7 of the second support plate 7 in the inner side of the second support ring 1 which moves downwards along the central axis of the first support ring 7, and the second support ring 7 which moves downwards through the first support ring 7, and the second support 7 which moves downwards along the second support ring 7;
in addition, when the support ring 1 moves downwards, the downward moving support ring 1 drives the sliding sleeve 202 fixedly connected with the support ring 1 to move downwards, the inclined surface at the upper part of the clamping hole pushes the clamping block 204 sleeved with the sliding sleeve to move to the inner part of the clamping hole far away from the support ring 1, and the clamping block 204 presses the first elastic pad 203 to shrink, so that the support ring 1 drives the sliding sleeve 202 fixedly connected with the support ring 1 to move downwards along the inner cavity of the sliding rod 201, otherwise, when the first support plate 6 is extruded by the inner wall of the foundation pit, the first support plate 6 reversely presses the support ring 1 through the sliding rail 5, the first curved rod 4, the swivel mount 3 and the second curved rod 11 to generate upward moving force, and the support ring 1 drives the sliding sleeve 202 fixedly connected with the support ring 1 to generate upward moving trend along the side surface of the sliding rod 201, but the bottom surface of the clamping hole at one side of the sliding sleeve 202 close to the support ring 1 contacts with the surface at the bottom of the clamping block 204, so that the support ring 1 is limited to slide upwards along the sliding rod 201, and the support ring 1 can only move downwards and cannot move upwards, so that the whole inner wall of the foundation pit is supported quickly;
in addition, after the position of the supporting ring 1 above is fixed, when the diameter of the inner wall of the foundation pit below the supporting ring 1 above is enlarged, the downward movement distance of the supporting ring 1 below is enlarged, so that the expansion diameters of the first supporting plate 6 and the second supporting plate 7 are increased, the first supporting plate 6 and the second supporting plate 7 can still be closely attached to the inner wall of the foundation pit, otherwise, when the diameter of the inner wall of the foundation pit below the supporting ring 1 above is reduced, the downward movement distance of the supporting ring 1 below is reduced, so that the expansion diameters of the first supporting plate 6 and the second supporting plate 7 are reduced, the expansion diameters of the first supporting plate 6 and the second supporting plate 7 can be automatically adjusted according to the change of the diameter of the inner wall of the foundation pit, and therefore, when the diameter of the foundation pit is changed, the first supporting plate 6 and the second supporting plate 7 can always be contacted with the inner wall of the foundation pit, and the problem that the supporting strength is lowered due to the fact that the first supporting plate 6 and the second supporting plate 7 are in contact with the protruding part of the inner wall of the foundation pit is avoided.
As shown in fig. 6 to 8, the drilling mechanism 12 comprises a plurality of groups of guide rods 1201, the plurality of groups of guide rods 1201 are respectively in sliding sleeve joint with adjacent guide grooves 102, a plurality of groups of mounting grooves 1203 are fixedly arranged in the middle of the plurality of groups of guide rods 1201, a plurality of groups of mounting grooves 1203 are formed in the circumference of the upper part of the mounting seat 1202 at equal intervals, second elastic pieces 1204 are fixedly arranged on one sides of the inner cavities of the plurality of groups of mounting grooves 1203, a pushing block 1205 in sliding sleeve joint with the adjacent mounting grooves 1203 is fixedly arranged on one end of the second elastic pieces 1204 on one side of the limiting mechanism 2, a first inner gear ring 1206 is in sliding sleeve joint with the upper part of the inner side of the plurality of groups of pushing blocks 1205, a first driving gear 1207 is fixedly arranged on one side of the upper surface of the mounting seat 1202, a first driving gear 1207 meshed with the first inner gear ring 1206 is fixedly arranged on the top end of an output shaft of the first driving gear 1208, a pressing block 1209 is fixedly arranged on the outer side of the second elastic piece 1204 on one side of the limiting mechanism 1202, a second inner gear ring 1210 is in sliding sleeve joint with the upper part of the second inner gear ring 1212 on the inner side of the limiting mechanism 2, a second inner gear ring 1212 is fixedly arranged on the other side of the upper surface of the second inner gear ring 1214 is arranged on the second inner ring 1214, a top of the second inner gear ring 1213 is fixedly arranged on the top of the second inner gear ring 1213 is fixedly meshed with the top of the second driving gear ring 1213, and the top of the second driving gear 1213 is fixedly meshed with the second driving gear ring 1213;
when in use, the mounting seat 1202 drives the guide rod 1201 to slide downwards to the bottommost end of the support device along the guide groove 102, the second driving piece 1212 is started, the output shaft of the second driving piece 1212 drives the second driving gear 1211 to rotate, the second driving gear 1211 drives the second inner gear 1210 to rotate, the bulge part on the outer side surface of the second inner gear 1210 pushes the pressing block 1209 to move to the side far away from the middle part of the mounting seat 1202, the pressing block 1209 pulls the second elastic piece 1204 fixedly connected with the pressing block 1209 to stretch, the bottom surface of the pressing block 1209 is contacted with the upper surface of the bottommost support ring 1, the mounting seat 1202 pushes the bottommost support ring 1 to move downwards under the action of self gravity through the pressing block 1209, in addition, the drilling machine 1213 is started, and the drilling machine 1213 rotates to dig holes downwards, so that the support device is mounted at the same time of digging holes is realized;
after the hole digging is finished, the second driving piece 1212 is started again, the output shaft of the second driving piece 1212 drives the second inner gear 1210 to rotate through the second driving gear 1211, the protruding part of the outer side surface of the second inner gear 1210 is separated from the pressing block 1209, the pressing block 1209 fixedly connected with the second elastic piece 1204 is pulled to move to the side close to the supporting ring 1, the lower surface of the pressing block 1209 is separated from the upper surface of the bottommost supporting ring 1, then the first driving piece 1208 is started, the output shaft of the first driving piece 1208 drives the first driving gear 1207 to rotate, the first driving gear 1207 drives the first inner gear 1206 to rotate, the protruding part of the outer side surface of the first inner gear 1206 pushes the pushing block 1205 to move to the side far away from the middle part of the mounting seat 1202, the pushing block 1205 pushes the clamping block 204 to move to the inside of the clamping hole, so that the supporting ring 1 can drive the sliding sleeve 202 to move upwards along the sliding rod 201, in addition, the upper surface of the bottom of the pushing block 1205 is contacted with the bottom surface of the bottommost supporting ring 1, finally, the rotary lifter 1214 is started, the traction and the traction wire is contracted, the traction wire is driven to drive the drilling machine 1214 1213 to move the drilling machine 1213, the drilling machine 1213 to drive the mounting seat 1213 to move the bottom end of the mounting seat to move towards the bottom end of the supporting ring 1, and the supporting ring can be quickly moved to the bottom end of the supporting ring 1 through the supporting ring 1.
Working principle and using flow:
according to the invention, the uppermost support ring 1 of the support device is arranged at the top end of a foundation pit, the support ring 1 below the uppermost support ring 1 moves downwards under the self gravity, the downward moving support ring 1 drives the first support plate 6 to move towards the side far away from the support ring 1 through the swivel mount 3, the second curved bar 11, the first curved bar 4 and the sliding rail 5, the first support plate 6 drives the second support plate 7 to move towards the side far away from the support ring 1, when the first support plate 6 and the second support plate 7 are in contact with the inner wall of the foundation pit, the foundation pit is supported, the downward moving support ring 1 stops moving downwards at the moment, the downward moving support ring 1 drives the sliding sleeve 202 fixedly connected with the downward moving support ring 1 to move downwards along the side surface of the sliding bar 201, otherwise, when the first support plate 6 is extruded by the inner wall of the foundation pit, the first support plate 6 and the second support plate 7 reversely push the support ring 1 to generate upward moving force through the sliding rail 5, the first curved bar 4, the swivel mount 3 and the second curved bar 11, the support ring 1 drives the sliding sleeve 202 fixedly connected with the support ring 1 to move upwards along the sliding rod 201, but as the sliding sleeve 202 is close to the bottom end plane of the clamping hole at one side of the support ring 1 and contacts with the plane at the bottom end of the clamping block 204, the sliding sleeve 202 is limited to slide upwards along the sliding rod 201, so that the support ring 1 can only move downwards and cannot move upwards, and the whole inner wall of a foundation pit can be supported quickly, in addition, when the diameter of the inner wall of the foundation pit below the support ring 1 above is increased after the support ring 1 above is fixed, the downward movement displacement of the support ring 1 below is increased, the expansion diameters of the first support plate 6 and the second support plate 7 are increased, the first support plate 6 and the second support plate 7 can still be clung to the inner wall of the foundation pit, otherwise, the diameter of the inner wall of the foundation pit below the support ring 1 above is reduced, the distance that below branch ring 1 moved downwards will become little to the expansion diameter of first backup pad 6 and second backup pad 7 reduces, and the foundation ditch inner wall is hugged closely to first backup pad 6 and second backup pad 7, thereby realizes according to the change of foundation ditch inner wall diameter, automatic quick adjustment first backup pad 6 and the expansion diameter of second backup pad 7, makes first backup pad 6 and second backup pad 7 laminate the inner wall of foundation ditch all the time, when avoiding the foundation ditch diameter to change, first backup pad 6 and second backup pad 7 contact with the bellied part of foundation ditch inner wall, produce the space with the sunken part of foundation ditch inner wall, lead to the problem that the support intensity becomes low.
In addition, by starting the second driving piece 1212, the output shaft of the second driving piece 1212 drives the second inner gear 1210 to rotate through the second driving gear 1211, so that the protruding portion of the outer side surface of the second inner gear 1210 is separated from the pressing block 1209, the pressing block 1209 fixedly connected with the second elastic piece 1204 is pulled to move to a side close to the support ring 1, the lower surface of the pressing block 1209 is separated from the upper surface of the bottommost support ring 1, then the first driving piece 1208 is started, the output shaft of the first driving piece 1208 drives the first inner gear 1206 to rotate through the first driving gear 1207, the protruding portion of the outer side surface of the first inner gear 1206 pushes the pushing block 1205 to move to a side far away from the support ring 1, the pushing block 1205 pushes the clamping block 204 to move to the inside of the clamping hole, so that the support ring 1 can drive the sliding sleeve 202 to move upwards along the sliding rod 201, in addition, the upper surface of the bottom of the pushing block 1205 is contacted with the bottom surface of the bottommost support ring 1, finally, the lifter 1214 drives the traction steel wire to shrink, the traction steel wire drives the mounting seat 1202 to move upwards, the support ring 1202 drives the bottommost support ring 1 to move upwards through the pushing block 1205, the support ring 1205 moves upwards, the bottommost support ring 1 to move upwards, the support ring 1 is driven by the supporting ring 1 to move towards the bottom end 1, and the support ring 1 is also fast to move towards the support device, and the support device can be quickly removed by the support device.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an underground foundation ditch construction is with temporary support device, includes a plurality of support rings (1), its characterized in that: a plurality of the branch rings (1) are arranged in parallel at equal intervals, a plurality of the central axes of the branch rings (1) coincide, a plurality of the lateral surfaces of the branch rings (1) are all provided with sliding grooves (101), two adjacent branch rings are arranged at equal intervals in the middle circumference of the branch rings (1) and are provided with a plurality of groups of limiting mechanisms (2), a plurality of the sliding grooves (101) are arranged at the middle part in a sliding manner, a plurality of the rotating bases (3) are even in number, one ends of the rotating bases (3) far away from the branch rings (1) are movably sleeved with first curved bars (4), two adjacent branch rings (4) are connected in a crossed manner, one ends of the first curved bars (4) far away from the branch rings (1) are slidably sleeved with sliding rails (5), one sides of the sliding rails (5) far away from the branch rings (1) are fixedly provided with first supporting plates (6), the middle parts of the first supporting plates (6) are slidably sleeved with second supporting plates (7), two sides of the first supporting plates (6) are fixedly sleeved with the first supporting plates (8) close to the second supporting plates (8) which are fixedly arranged at the two sides of the first supporting plates (1), the bottom surface fixed mounting of the flexible end of first flexible cover (8) has connecting rod (10) with the flexible end top surface fixed connection of adjacent second flexible cover (9), a plurality of the bottom of swivel mount (3) has all movably sleeved second bent lever (11), and is adjacent second bent lever (11) alternately movable sleeve, adjacent two the bottom and the adjacent below of second bent lever (11) swivel mount (3) movably sleeve, a plurality of multiunit guide slot (102) have all been seted up to the medial surface of ring (1) symmetry, and the two sets of middle part of guide slot (102) of the lowest end slides and is equipped with drilling mechanism (12).
2. The temporary support device for underground foundation pit construction according to claim 1, wherein: stop gear (2) include slide bar (201) and sliding sleeve (202), the top fixed mounting of slide bar (201) is at the lower surface of branch ring (1), the bottom fixed mounting of sliding sleeve (202) is at the upper surface at branch ring (1), slide bar (201) slip cup joints the middle part at sliding sleeve (202), slide bar (201) are close to branch ring (1) side equidistance and have been seted up a plurality of mounting holes, one side fixed mounting that branch ring (1) was kept away from to the mounting hole inner chamber has first elastic pad (203), one end fixed mounting that branch ring (1) was close to first elastic pad (203) has fixture block (204), one side fixed mounting that branch ring (1) is close to in the middle part of slide bar (201) inserts and establishes gag lever post (205) at fixture block (204) middle part, one side equidistance that branch ring (1) is close to sliding sleeve is equipped with multiunit and fixture block (204) slip cup joint's card hole, the upper portion that branch ring (1) one side was kept away from to the card hole is equipped with the inclined plane, a plurality of spout (101) are all seted up to the outside face of branch ring (1).
3. The temporary support device for underground foundation pit construction according to claim 1, wherein: the drilling mechanism (12) comprises a plurality of groups of guide rods (1201), the guide rods (1201) are respectively and slidably sleeved with adjacent guide grooves (102), the middle part of each guide rod (1201) is fixedly provided with a mounting seat (1202), a plurality of groups of mounting grooves (1203) are formed in the circumference of the upper part of each mounting seat (1202) at equal intervals, one side, close to the middle part of each mounting seat (1202), of each mounting groove (1203) is fixedly provided with a second elastic element (1204), one side, close to a limiting mechanism (2), of each second elastic element (1204) is far away from one end of the middle part of each mounting seat (1202), a pushing block (1205) which is slidably sleeved with the adjacent mounting groove (1203) is fixedly arranged, the upper parts of the inner side surfaces of the pushing blocks (1205) are slidably sleeved with a first inner gear ring (1206), the top end of an output shaft of each mounting seat (1202) is fixedly provided with a first driving element (1208), the top end of an output shaft of each first driving gear (1207) which is fixedly arranged in engagement with the first inner gear ring (1206), one side, which is far away from the limiting mechanism (2) is fixedly provided with a second driving block (1209) which is fixedly sleeved with the outer side of the corresponding pressing block (1209), the top end of the output shaft of the second driving piece (1212) is fixedly provided with a second driving gear (1211) meshed with the second inner gear ring (1210), the middle part of the mounting seat (1202) is provided with a drilling machine (1213), the upper surface of the topmost support ring (1) is provided with a turning machine (1214), and a traction steel wire of the turning machine (1214) is arranged at the top end of the drilling machine (1213).
4. The temporary support device for underground foundation pit construction according to claim 1, wherein: the support ring (1) is an equilateral polygon, and the support ring (1) is made of a material with large mass and high strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310716214.8A CN116733005A (en) | 2023-06-15 | 2023-06-15 | Temporary support device for underground foundation pit construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310716214.8A CN116733005A (en) | 2023-06-15 | 2023-06-15 | Temporary support device for underground foundation pit construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116733005A true CN116733005A (en) | 2023-09-12 |
Family
ID=87904174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310716214.8A Pending CN116733005A (en) | 2023-06-15 | 2023-06-15 | Temporary support device for underground foundation pit construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116733005A (en) |
-
2023
- 2023-06-15 CN CN202310716214.8A patent/CN116733005A/en active Pending
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