CN116398199B - Tunnel portal supporting device - Google Patents
Tunnel portal supporting device Download PDFInfo
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- CN116398199B CN116398199B CN202310612658.7A CN202310612658A CN116398199B CN 116398199 B CN116398199 B CN 116398199B CN 202310612658 A CN202310612658 A CN 202310612658A CN 116398199 B CN116398199 B CN 116398199B
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 157
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a tunnel portal supporting device, which comprises: a frame body; the middle part of the threaded rod is rotationally connected with the frame body; the two thread sleeves are respectively sleeved at two ends of the threaded rod in a thread manner; the support mechanism comprises a plurality of first movable pieces, a plurality of first support rods and a plurality of support plates, each pair of first movable pieces comprises a pair of first movable rods and a first movable block, and two ends of each first movable rod are respectively hinged with the threaded sleeve and the first movable block; each first supporting rod is detachably connected with the first movable block, one side face of each supporting plate is connected with the first supporting rod, and the other side face of each supporting plate is abutted to the inner wall of the curved surface of the tunnel. The tunnel portal supporting device provided by the invention has the advantages of small volume, simple structure, convenience in disassembly and storage, capability of adjusting the supporting range according to the size of the tunnel portal, great improvement of the application range of the supporting device and higher economical practicability.
Description
Technical Field
The invention relates to the technical field of tunnel supporting equipment. More particularly, the present invention relates to a tunnel portal support device.
Background
In building road repairing construction, when a hillside is blocked, in order to reduce the distance, a tunnel is usually required to be excavated, and roads on two sides of the hillside are communicated; in the process of tunnel excavation, firstly, tunnel openings are excavated, then construction of the internal building of the tunnel is carried out, in the process, the tunnel openings are required to be supported so as to avoid tunnel slump, and effective support of the inner walls of the tunnel openings is improved.
In the conventional technology, the tunnel supporting device is set to be multi-angle to achieve the purpose of improving the supporting effect of the tunnel portal, for example, the patent of the invention with the publication number of CN115324619B discloses a temporary multi-angle supporting device for a tunnel, which solves the purpose of improving the supporting effect, but the supporting device in the patent technology has the defects of large volume, complex structure and inconvenient storage, and the supporting range cannot be adjusted according to the inner diameter of the tunnel, so that the applicability is poor.
Disclosure of Invention
It is an object of the present invention to solve at least the above problems and to provide at least the advantages to be described later.
It is still another object of the present invention to provide a tunnel portal supporting device, which solves the above-mentioned technical drawbacks of the related art.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a tunnel portal supporting device including:
a frame body;
the threaded rod is horizontally arranged above the frame body along the longitudinal direction, and the middle part of the threaded rod is rotationally connected with the frame body through a rotating mechanism;
the two thread sleeves are respectively sleeved at two ends of the threaded rod in a threaded manner, and the threaded rod rotates to drive the two thread sleeves to move reversely and horizontally; the bottom of each thread bush is longitudinally and slidably connected with the frame body;
a support mechanism, comprising:
the first movable pieces are distributed along the circumferential direction by taking the axis of the threaded rod as the center, each pair of first movable pieces comprises two first movable rods which are arranged in one-to-one correspondence with the two threaded sleeves and a first movable block arranged between the two first movable rods, one end of each first movable rod is hinged with the corresponding threaded sleeve, and the other end of each first movable rod is hinged with the corresponding first movable block;
the first movable blocks are arranged on the first support rods, and one end of each first support rod is detachably connected with each first movable block;
each first supporting rod is correspondingly provided with a supporting plate, each supporting plate is of an arc-shaped structure, one side face of each supporting plate is connected with the other end of each first supporting rod, and the other side face of each supporting plate is in butt joint with the curved surface inner wall of the tunnel portal.
Preferably, the tunnel portal supporting device, the supporting mechanism further includes:
the two pairs of second movable pieces are symmetrically arranged below the threaded rod in the transverse direction, each pair of second movable pieces comprises two second movable rods which are arranged in one-to-one correspondence with the two threaded sleeves and a second movable block arranged between the two second movable rods, one end of each second movable rod is hinged with the corresponding threaded sleeve, and the other end of each second movable rod is hinged with the corresponding second movable block;
the two support blocks are symmetrically arranged on two sides of the frame body along the transverse direction, the vertical section of each support block along the transverse direction is a right triangle, the straight edge of the support block which is horizontally arranged is connected with the frame body in a sliding manner along the transverse direction, and the straight edge which is vertically arranged can be abutted with the inner wall of the side face of the tunnel portal;
the two second support rods are arranged in a corresponding manner, one end of each second support rod is detachably connected with the corresponding second movable block, and the other end of each second support rod extends downwards in an inclined manner and is abutted with the inclined side of the corresponding support block;
the two first support rods in a horizontal state are respectively and correspondingly provided with one third support rod, the upper end of each third support rod is connected with the bottom of the corresponding support plate, and the lower end of each third support rod extends vertically downwards and is connected with the bevel edge of the corresponding support block.
Preferably, the tunnel portal supporting device, the support body includes:
the fixed plate is horizontally arranged below the threaded rod;
the two sliding rods are respectively arranged at two ends of the fixed plate along the longitudinal direction, each threaded sleeve is correspondingly provided with one sliding rod, the upper end of each sliding rod is connected with the corresponding threaded sleeve, and the lower end of each sliding rod extends vertically downwards and is connected with the fixed plate along the longitudinal sliding direction;
the two movable plates are respectively arranged at two sides of the fixed plate along the transverse direction, and each movable plate is connected with the fixed plate along the transverse direction in a sliding manner; each supporting block is correspondingly provided with a movable plate, and the bottom of each supporting block is connected with the corresponding movable plate.
Preferably, the tunnel portal supporting device, the rotating mechanism includes:
the first bevel gear is coaxially and fixedly sleeved in the middle of the threaded rod;
the rotating shaft is vertically arranged below the threaded rod and is positioned between the two sliding rods; the lower end of the rotating shaft is rotationally connected with the fixed plate; the rotation of the rotating shaft is driven by a motor fixedly arranged on the fixed plate;
and the second bevel gear is coaxially and fixedly sleeved at the upper end of the rotating shaft, and is meshed with the first bevel gear.
Preferably, the tunnel portal supporting device is characterized in that a bearing sleeve is sleeved at the middle part of the rotating shaft in a rotating mode, and two ends of the bearing sleeve are connected with the two sliding rods through a first telescopic rod respectively.
Preferably, the tunnel portal supporting device further comprises a travelling mechanism, which comprises:
the bottom plate is horizontally arranged below the fixed plate;
the two electric telescopic rods are vertically arranged between the bottom plate and the fixed plate and are positioned at two ends of the fixed plate; two ends of each electric telescopic rod are respectively connected with the bottom plate and the fixed plate;
the connecting rod is horizontally arranged, and two ends of the connecting rod are respectively connected with the upper ends of the two electric telescopic rods;
the first universal wheels are arranged at the bottom of the bottom plate;
the upper end of each second telescopic rod is connected with the corresponding movable plate, and the lower end of each second telescopic rod extends vertically and downwards and is provided with a second universal wheel;
and the two third telescopic rods are horizontally arranged corresponding to one second telescopic rod, and the upper end of each third telescopic rod is connected with the corresponding second telescopic rod.
Preferably, the tunnel portal supporting device, the travelling mechanism further comprises two fourth telescopic rods, one second telescopic rod is horizontally arranged correspondingly, and the lower end of each fourth telescopic rod is connected with the bottom plate.
Preferably, in the tunnel portal supporting device, a mounting groove is formed in the inclined edge of each supporting block, the lower end of the third supporting rod extends to the mounting groove, and a groove is formed in the third supporting rod; the other end of the second supporting rod is provided with a convex block matched with the groove.
The invention at least comprises the following beneficial effects:
1. according to the tunnel portal supporting device, the supporting frame can be driven to be unfolded and folded only by rotating the threaded rod, so that the supporting plate is pushed to be unfolded and folded, the supporting device is rapidly assembled and disassembled, the supporting operation efficiency is improved, meanwhile, the storability of the supporting device in an idle state is improved, in addition, the supporting device can provide multi-angle support for the tunnel portal, the supporting effect is improved, and the supporting device is further suitable for supporting tunnel portals with different sizes and wide in application range;
2. in order to further improve the supporting effect, the invention utilizes the triangle stability principle to arrange a pair of second movable pieces, supporting blocks, two second supporting plates and two third supporting rods to form a plurality of triangle supports, thereby greatly improving the stability and the supporting effect of the whole supporting device;
3. the invention is provided with the travelling mechanism, is convenient for the movement of the supporting device, and is connected with the frame body through the electric telescopic rod, so that the supporting device can be suitable for supporting tunnel openings with different height and size, and the application range of the invention is further enlarged.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a tunnel portal supporting device according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1;
FIG. 3 is a cross-sectional view of B-B of FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 1;
FIG. 5 is a schematic view of the structure of the threaded rod, two screw caps, a plurality of first movable members, the rotating mechanism and the fixed plate according to another embodiment of the present invention;
FIG. 6 is a top view of the threaded rod, two threaded caps, and a plurality of first movable members in an expanded state according to another embodiment of the present invention;
fig. 7 is a top view of the threaded rod, two screw caps, and a plurality of first movable members in a contracted state according to another embodiment of the present invention.
Reference numerals illustrate: 1-a tunnel portal; 2-a threaded rod; 21-a sleeve; 211-a fixed rod; 3-a thread sleeve; 41-a first movable bar; 42-a first movable block; 43-a first support bar; 44-a support plate; 45-a second movable bar; 46-a second movable block; 47-a second support bar; 48-supporting blocks; 49-a third support bar; 51-a fixed plate; 52-a sliding rod; 53-a movable plate; 61-a first bevel gear; 62-rotating shaft; 63-an electric motor; 64-a second bevel gear; 65-bearing sleeve; 66-a first telescopic rod; 71-a bottom plate; 72-an electric telescopic rod; 73-connecting rods; 74-a first universal wheel; 75-a second telescopic rod; 76-a second universal wheel; 77-a third telescopic rod; 78-fourth telescopic rod.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 are not to be construed as limiting the present invention.
As shown in fig. 1 to 7, the present invention provides a tunnel portal supporting device, which includes:
a frame body;
the threaded rod 2 is horizontally arranged above the frame body along the longitudinal direction, and the middle part of the threaded rod 2 is rotationally connected with the frame body through a rotating mechanism; the direction of the vehicle running in the tunnel is longitudinal, the direction perpendicular to the vehicle running direction is transverse, as shown in fig. 1, the direction perpendicular to the paper surface is longitudinal, and the direction parallel to the paper surface is transverse;
the two thread sleeves 3 are respectively arranged at two ends of the threaded rod 2, and the threaded rod 2 rotates to drive the two thread sleeves 3 to move reversely and horizontally; the bottom of each thread bush 3 is connected with the frame body in a sliding way along the longitudinal direction;
a support mechanism, comprising:
the first movable pieces are distributed along the circumferential direction by taking the axis of the threaded rod 2 as the center, each pair of first movable pieces comprises two first movable rods 41 which are arranged in one-to-one correspondence with the two threaded sleeves and a first movable block 42 which is arranged between the two first movable rods, one end of each first movable rod 41 is hinged with the corresponding threaded sleeve 3, and the other end of each first movable rod 41 is hinged with the corresponding first movable block 42;
the first support rods 43 are arranged on the first movable blocks 42 correspondingly, and one end of each first support rod 43 is detachably connected with the first movable block 42;
each first supporting rod 43 is correspondingly provided with one supporting plate 44, each supporting plate 44 is of an arc-shaped structure, one side surface of each supporting plate 44 is connected with the other end of the corresponding first supporting rod 43, and the other side surface is abutted with the curved inner wall of the tunnel portal 1; the plurality of backup pads form the arc structure that matches with the tunnel portal curved surface, every backup pad and the curved surface inner wall butt in tunnel portal to carry out the multi-angle to the curved surface inner wall in tunnel portal.
In the technical scheme, the invention provides a tunnel portal supporting device, which comprises a frame body, a threaded rod horizontally and rotatably arranged above the frame body, two threaded sleeves respectively sleeved at two ends of the threaded rod, and a supporting mechanism for supporting the inner wall of a curved surface of a tunnel portal 1, wherein the supporting mechanism comprises a plurality of first movable pieces which are distributed at intervals along the circumferential direction and are positioned at the upper half part of the threaded rod, a plurality of first supporting rods which are detachably connected with the plurality of first movable pieces in a one-to-one correspondence manner, and a plurality of supporting plates which are arranged in a one-to-one correspondence manner with the plurality of first supporting rods; the threaded rod is provided with external threads, the inside of the threaded sleeve is provided with internal threads matched with the external threads, the threaded sleeve can be sleeved on the threaded rod in a spiral rotating manner, the threaded rod rotates around the axis of the threaded rod to drive the two threaded sleeves to horizontally move along the axial direction of the threaded rod, and the rotation of the threaded rod can drive the two threaded sleeves to horizontally move synchronously towards the directions far away from each other or close to each other through the design of the thread direction; each first movable piece comprises two first movable rods and first movable blocks arranged between the two first movable rods, the first movable blocks are distributed at intervals along the circumferential direction by taking the axis of the threaded rod as the center line, a semicircular arc structure with the center of the circle located on the axis of the threaded rod and surrounding the upper half part of the threaded rod is formed, one end of each first movable rod is hinged with a corresponding threaded sleeve, the other end of each first movable rod is hinged with one side of the first movable block, the two threaded sleeves move towards the directions close to each other, the included angle between the two first movable rods can be driven to be gradually reduced, the first movable blocks are pushed along the radial direction of the threaded rod towards the direction far away from the threaded rod, namely all the first movable blocks can be synchronously driven to move along the radial direction of the threaded rod only by rotating the threaded rod; each first movable block is detachably connected with a first supporting rod, each first supporting rod extends along the radial direction of the threaded rod, the free end of each first supporting rod is connected with an arc-shaped supporting plate, and the supporting plates are arranged to be in an arc shape and can be better attached to the inner wall of a curved surface of a tunnel portal, so that the supporting effect is improved;
the threaded rod, the two threaded sleeves and the first movable parts are used as frames of the supporting mechanism, the plurality of first supporting rods and the plurality of supporting plates are used as detachable supporting elements, when the supporting device is in an idle state, the two threaded sleeves are positioned at the position with the largest distance from each other, at the moment, for each first movable part, the included angle formed by the two first movable rods is the largest, the first movable block is positioned at the position closest to the threaded rod, the frames of the supporting mechanism are of a strip-shaped structure in a furled state, as shown in fig. 7, the supporting elements can be collected in a collecting bag (can be hung on a frame body), and the whole supporting device is simple in structure, convenient to store, small in size and convenient to move to a tunnel portal of a construction site;
when the tunnel opening is required to be supported, the frame body is moved to the tunnel opening, the frame body keeps a threaded rod to enter the tunnel opening in a longitudinal state, and a first supporting rod and a supporting plate are arranged on each first movable block; then, the rotating mechanism is started to drive the threaded rod to rotate around the axis of the threaded rod, the two threaded sleeves are driven to synchronously move towards the directions close to each other, and further, the two first movable rods arranged in pairs (the two first movable rods of each first movable piece are the first movable rods arranged in pairs) are driven to rotate, the first movable block is pushed to radially move towards the direction away from the threaded rod along the threaded rod, and further, the supporting plate is pushed to move towards the direction close to the curved surface inner wall of the tunnel portal, so that the supporting plate is suitable for supporting the tunnel portal with different sizes until the supporting plate contacts with the curved surface inner wall of the tunnel portal, the threaded rod is stopped from rotating, and as shown in fig. 1 and 6, a plurality of supporting plates form multi-angle supporting to the curved surface inner wall of the tunnel portal, wherein the two first supporting rods on two sides are in a horizontal state along the transverse direction, so that the two supporting plates on two sides can be abutted against the side inner wall of the tunnel portal, and the supporting effect and the supporting stability of the whole supporting device are improved;
after the tunnel portal supporting operation is finished, the supporting device is disassembled, specifically: the threaded rod is reversely rotated to drive the two threaded sleeves to move towards the direction away from each other, namely, the state of the first movable block in the figure 6 is returned to the state of the second movable block in the figure 7, and the first support rod and the support plate on each first movable block are detached and placed in the storage bag again, so that the next use is facilitated;
the supporting device provided by the invention not only has the advantages of being capable of supporting the inner wall of the tunnel portal at multiple angles and flexibly adjusting the supporting device according to the size of the tunnel portal, but also has the advantages of convenience and rapidness in assembly and disassembly and rapid support, and in addition, the supporting device is small in size, convenient to store, simple in structure, low in manufacturing cost and high in economical practicability.
The detachable connection of the first support rod and the first movable block can be realized by adopting a conventional technical means, for example, a threaded hole can be formed in the middle of the first movable block, threads matched with the threaded hole are formed in the outer wall of one end of the first support rod, one end of the first support rod is rotatably inserted into the threaded hole in a penetrating manner, and one end of the first support rod is fastened through a nut, so that the assembly and the disassembly are convenient; and the detachable connection can be realized in a mortise and tenon clamping mode, and the details are not repeated here.
In another technical scheme, the tunnel portal supporting device, the supporting mechanism further includes:
two pairs of second movable pieces are symmetrically arranged below the threaded rod in the transverse direction, each pair of second movable pieces comprises two second movable rods 45 which are arranged in one-to-one correspondence with the two threaded sleeves and a second movable block 46 arranged between the two second movable rods 45, one end of each second movable rod 45 is hinged with the corresponding threaded sleeve 3, and the other end of each second movable rod is hinged with the corresponding second movable block 46;
the two support blocks 48 are symmetrically arranged on two sides of the frame body along the transverse direction, the vertical section of each support block 48 along the transverse direction is a right triangle, the straight edge of the support block 48 which is horizontally arranged is connected with the frame body in a sliding manner along the transverse direction, and the straight edge which is vertically arranged can be abutted with the inner wall of the side face of the tunnel portal 1;
two second support rods 47, each second movable block 46 is correspondingly provided with one second support rod 47, one end of each second support rod 47 corresponding to the second movable block 46 is detachably connected, and the other end extends downwards in an inclined way and is abutted with the inclined side of the corresponding support block 48;
the two third support rods 49 are respectively and correspondingly arranged on the two first support rods 43 in a horizontal state, the upper end of each third support rod 49 is connected with the bottom of the corresponding support plate 44, and the lower end of each third support rod 49 extends vertically downwards and is connected with the inclined edge of the corresponding support block 48.
In the above technical scheme, in order to further improve the support stability of the support device of the present invention, a plurality of second moving parts, two support blocks, two second support rods and two third support rods are arranged at the lower part of the threaded rod, so that two ends of the support mechanism are supported on the frame body through the second support rods and the third support rods; specific: the two second movable pieces and the first movable piece are identical in shape and action principle, and are different in angle, details of the second movable pieces are not repeated here, the second movable pieces are detachably connected with the second support rods, the second support rods extend along the radial direction of the threaded rods, the second movable pieces are detachably connected with the first movable pieces and the first support rods, and the details of the second movable pieces are not repeated here, so that reference is made to the above; the second support rod extends obliquely downwards and can be abutted with the inclined edge of the support block, the third support rod is vertically arranged at the bottom of the support plate corresponding to the first support rod in a horizontal state and is used for supporting the support plate in the horizontal state, the support stability is improved, the lower end of the third support rod is connected with the inclined edge of the support block, one straight edge of the support block is abutted with the inner wall of the side face of the tunnel portal, the other straight edge of the support block is arranged on the frame body, the second movable piece, the second support rod and the third support rod form triangular support under the connection effect of the support plate and the support block, and the stability of the lower support of the support device is greatly improved by utilizing the principle of triangle stability.
In another technical scheme, tunnel portal strutting arrangement, the support body includes:
a fixing plate 51 horizontally provided below the threaded rod 2;
the two sliding rods 52 are respectively arranged at two ends of the fixed plate 51 along the longitudinal direction, each threaded sleeve 3 is correspondingly provided with one sliding rod 52, the upper end of each sliding rod 52 is connected with the corresponding threaded sleeve 3, and the lower end of each sliding rod 52 extends vertically downwards and is connected with the fixed plate 51 along the longitudinal sliding direction;
two movable plates 53 respectively disposed on two sides of the fixed plate 51 in the transverse direction, each movable plate 53 being slidably connected to the fixed plate 51 in the transverse direction; each supporting block 48 is correspondingly provided with a movable plate 53, and the bottom of the supporting block 48 is connected with the corresponding movable plate 53.
In the technical scheme, the invention discloses a concrete structure of a frame body, wherein the frame body comprises a fixed plate for supporting the ground of a tunnel, two sliding rods for longitudinally and slidably connecting a threaded sleeve and the fixed plate, and two movable plates for transversely and slidably connecting a supporting block and the fixed plate, the fixed plate can be of a strip-shaped structure extending longitudinally, the two threaded sleeves do not rotate along with a threaded rod, the bottoms of the threaded sleeves are connected with the fixed plate through the sliding rods, and when the threaded rod rotates, under the limiting effect of the sliding rods, the threaded sleeves do not rotate along with the threaded rod but move horizontally along the longitudinal direction, so that a supporting frame is driven to be unfolded and folded; further, two movable plates are respectively arranged on two sides of the fixed plate in a sliding manner along the transverse direction, when the supporting frame is unfolded, the first supporting rods in a horizontal state move along the transverse direction towards the direction close to the inner wall of the tunnel, the corresponding supporting plates are driven to move along the transverse direction, the movable plates are driven to move along the transverse direction relative to the fixed plate, the movable plates provide mounting supporting sites for the supporting plates, the movable plates further meet the requirement of moving along the transverse direction, and when the supporting frame is folded, the movable plates can retract relative to the fixed plates, so that the volume of the supporting device in an idle state can be reduced;
in order to improve the steadiness of threaded rod 2 to and to the spacing of two thread bush 3 towards the horizontal migration of the direction of keeping away from each other, rotate the cover at the both ends of threaded rod 2 and establish sleeve 21, sleeve 21 passes through bearing assembly rotation with threaded rod 2 and is connected for sleeve 21 can not interfere the rotation of threaded rod 1 around self axis, every sleeve 21 is connected with fixed plate 51 through the dead lever 211 of vertical setting, supports threaded rod pivoted stability at both ends, and then improves support efficiency of construction, improves the inside supporting effect in tunnel portal.
In another technical scheme, tunnel portal strutting arrangement, slewing mechanism includes:
the first bevel gear 61 is coaxially and fixedly sleeved in the middle of the threaded rod 2;
a rotating shaft 62 vertically arranged below the threaded rod 2 and located between the two sliding rods 52; the lower end of the rotating shaft 62 is rotatably connected with the fixed plate 51; the rotation of the rotating shaft 62 is driven by a motor 63 fixedly arranged on the fixed plate 51; the motor is arranged on the upper surface of the fixed plate, and an output shaft of the motor extends vertically upwards and is connected with the lower end of the rotating shaft;
the second bevel gear 64 is coaxially and fixedly sleeved at the upper end of the rotating shaft 62, and the second bevel gear 64 is meshed with the first bevel gear 61.
In the technical scheme, as shown in fig. 5, the invention discloses a specific structure of a rotating mechanism, the specific rotating mechanism comprises a first bevel gear coaxially and fixedly sleeved in the middle of a threaded rod, a rotating shaft vertically rotating below the threaded rod and a second bevel gear coaxially and fixedly sleeved at the upper end of the rotating shaft, the rotating shaft is driven by a motor, the second bevel gear is meshed with the first bevel gear, the motor is started, the rotating shaft is driven to rotate around the axis of the rotating shaft, the second bevel gear is driven to rotate, and under the meshing effect, the first bevel gear is driven to rotate, so that the threaded rod is driven to rotate around the axis of the rotating shaft; and the motor drive is arranged, so that the electric automation degree of the supporting device is improved, and the supporting construction operation efficiency is improved.
In another technical scheme, the tunnel portal supporting device is characterized in that a bearing sleeve 65 is sleeved in the middle of the rotating shaft 62 in a rotating manner, and two ends of the bearing sleeve 65 are respectively connected with the two sliding rods 52 through a first telescopic rod 66. In order to improve the stability of pivot installation and during rotation, further be connected pivot and two slide bars through bearing and first telescopic link to realize the support to the pivot middle part, avoid the pivot of vertical setting to take place slope or unnecessary displacement.
In another technical scheme, tunnel portal strutting arrangement, still include running gear, it includes:
a bottom plate 71 horizontally provided below the fixing plate 51;
two electric telescopic rods 72, which are vertically disposed between the bottom plate 71 and the fixed plate 51, and are disposed at both ends of the fixed plate 51; two ends of each electric telescopic rod 72 are respectively connected with the bottom plate 71 and the fixed plate 51;
a connecting rod 73 horizontally arranged, both ends of which are respectively connected with the upper ends of the two electric telescopic rods 72;
a plurality of first universal wheels 74 provided at the bottom of the base plate 71;
the two second telescopic rods 75 and one movable plate 53 are correspondingly provided with one second telescopic rod 75, the upper end of each second telescopic rod 75 is connected with the corresponding movable plate 53, and the lower end of each second telescopic rod extends vertically downwards and is provided with a second universal wheel 76;
two third telescopic rods 77, one third telescopic rod 77 is horizontally arranged corresponding to one second telescopic rod 75, and each third telescopic rod 77 connects the upper end of the corresponding second telescopic rod 75 with the connecting rod 73.
In the technical scheme, the walking mechanism is further arranged, so that the support device is convenient to move, and meanwhile, the electric telescopic rod is arranged, and the height of the frame body is adjusted, so that the support device disclosed by the invention can be suitable for supporting tunnel openings with different height sizes, and the application range is further enlarged; the bottom plate is specifically arranged below the fixed plate, the bottom plate is connected with the fixed plate through the electric telescopic rods of the lifting assembly, the two electric telescopic rods are arranged at the two ends of the fixed plate, the stability is better, the upper ends of the electric telescopic rods are connected through the connecting rods, and the stability of the electric telescopic rods is improved; the bottom of the bottom plate is provided with a plurality of first universal wheels, so that the movement is convenient, and preferably, the bottom of the bottom plate is correspondingly provided with one first universal wheel at a position close to the top angle, wherein one first universal wheel is matched with a brake, so that the temporary stop positioning of the supporting device is convenient; the two movable plates are supported above the ground of the tunnel through the two second telescopic rods, and the second universal wheels are arranged at the bottoms of the two second telescopic rods, so that the movable plates can move conveniently and the whole supporting device can move conveniently, and the second universal wheels are matched with brakes, so that the movable plates can be positioned temporarily after being moved in place conveniently; the second telescopic link is connected with the connecting rod through the third telescopic link for the flexible of electric telescopic link drives the free flexible of second telescopic link.
In another technical scheme, the tunnel portal supporting device further comprises two fourth telescopic rods 78, one fourth telescopic rod 78 is horizontally arranged on one second telescopic rod 75 correspondingly, and each fourth telescopic rod 78 connects the lower end of the corresponding second telescopic rod 75 with the bottom plate 71. In order to improve the stability of two second telescopic links, further lower extreme and the bottom plate of second telescopic link are connected through the fourth telescopic link, avoid the second telescopic link to take place slope or unnecessary displacement.
In another technical scheme, in the tunnel portal supporting device, a mounting groove is formed in the inclined side of each supporting block 48, the lower end of the third supporting rod 49 extends to the mounting groove, and a groove is formed in the third supporting rod 49; the other end of the second support bar 47 is provided with a protrusion matching with the groove (the mounting groove, the groove and the protrusion are not shown in the figure, and are all realized by means of the prior art, so that the protrusion on the second support bar is clamped and connected with the groove on the third support bar in the mounting groove). The other end of the second supporting rod is inserted into the mounting groove, the protruding block is clamped in the groove, the protruding block is preferably made of elastic rubber, the protruding block can be extruded into the groove under the action of external propelling force, and the protruding block can be removed from the groove under the action of external pulling force; when supporting the tunnel portal, the threaded rod rotates to drive the supporting mechanism to prop open the in-process, and the lug extrudes and enters the groove to butt the second supporting rod and the third supporting rod, so that the stability of the whole device supporting is improved.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be readily apparent to those skilled in the art.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (6)
1. Tunnel portal strutting arrangement, its characterized in that includes:
a frame body;
the threaded rod is horizontally arranged above the frame body along the longitudinal direction, and the middle part of the threaded rod is rotationally connected with the frame body through a rotating mechanism;
the two thread sleeves are respectively sleeved at two ends of the threaded rod in a threaded manner, and the threaded rod rotates to drive the two thread sleeves to move reversely and horizontally; the bottom of each thread bush is longitudinally and slidably connected with the frame body;
a support mechanism, comprising:
the first movable pieces are distributed along the circumferential direction by taking the axis of the threaded rod as the center, each pair of first movable pieces comprises two first movable rods which are arranged in one-to-one correspondence with the two threaded sleeves and a first movable block arranged between the two first movable rods, one end of each first movable rod is hinged with the corresponding threaded sleeve, and the other end of each first movable rod is hinged with the corresponding first movable block;
the first movable blocks are arranged on the first support rods, and one end of each first support rod is detachably connected with each first movable block;
each first supporting rod is correspondingly provided with a supporting plate, each supporting plate is of an arc-shaped structure, one side surface of each supporting plate is connected with the other end of each first supporting rod, and the other side surface of each supporting plate is abutted to the curved inner wall of the tunnel portal;
wherein, the supporting mechanism still includes:
the two pairs of second movable pieces are symmetrically arranged below the threaded rod in the transverse direction, each pair of second movable pieces comprises two second movable rods which are arranged in one-to-one correspondence with the two threaded sleeves and a second movable block arranged between the two second movable rods, one end of each second movable rod is hinged with the corresponding threaded sleeve, and the other end of each second movable rod is hinged with the corresponding second movable block;
the two support blocks are symmetrically arranged on two sides of the frame body along the transverse direction, the vertical section of each support block along the transverse direction is a right triangle, the straight edge of the support block which is horizontally arranged is connected with the frame body in a sliding manner along the transverse direction, and the straight edge which is vertically arranged can be abutted with the inner wall of the side face of the tunnel portal;
the two second support rods are arranged in a corresponding manner, one end of each second support rod is detachably connected with the corresponding second movable block, and the other end of each second support rod extends downwards in an inclined manner and is abutted with the inclined side of the corresponding support block;
the upper end of each third supporting rod is connected with the bottom of the corresponding supporting plate, and the lower end of each third supporting rod extends vertically downwards and is connected with the bevel edge of the corresponding supporting block;
the frame body includes:
the fixed plate is horizontally arranged below the threaded rod;
the two sliding rods are respectively arranged at two ends of the fixed plate along the longitudinal direction, each threaded sleeve is correspondingly provided with one sliding rod, the upper end of each sliding rod is connected with the corresponding threaded sleeve, and the lower end of each sliding rod extends vertically downwards and is connected with the fixed plate along the longitudinal sliding direction;
the two movable plates are respectively arranged at two sides of the fixed plate along the transverse direction, and each movable plate is connected with the fixed plate along the transverse direction in a sliding manner; each supporting block is correspondingly provided with a movable plate, and the bottom of each supporting block is connected with the corresponding movable plate.
2. The tunnel portal support apparatus of claim 1 wherein the rotation mechanism comprises:
the first bevel gear is coaxially and fixedly sleeved in the middle of the threaded rod;
the rotating shaft is vertically arranged below the threaded rod and is positioned between the two sliding rods; the lower end of the rotating shaft is rotationally connected with the fixed plate; the rotation of the rotating shaft is driven by a motor fixedly arranged on the fixed plate;
and the second bevel gear is coaxially and fixedly sleeved at the upper end of the rotating shaft, and is meshed with the first bevel gear.
3. The tunnel portal supporting device as claimed in claim 2, wherein the middle part of the rotating shaft is rotatably sleeved with a bearing sleeve, and two ends of the bearing sleeve are respectively connected with two sliding rods through a first telescopic rod.
4. A tunnel portal support as claimed in claim 3 further comprising a running gear comprising:
the bottom plate is horizontally arranged below the fixed plate;
the two electric telescopic rods are vertically arranged between the bottom plate and the fixed plate and are positioned at two ends of the fixed plate; two ends of each electric telescopic rod are respectively connected with the bottom plate and the fixed plate;
the connecting rod is horizontally arranged, and two ends of the connecting rod are respectively connected with the upper ends of the two electric telescopic rods;
the first universal wheels are arranged at the bottom of the bottom plate;
the upper end of each second telescopic rod is connected with the corresponding movable plate, and the lower end of each second telescopic rod extends vertically and downwards and is provided with a second universal wheel;
and the two third telescopic rods are horizontally arranged corresponding to one second telescopic rod, and the upper end of each third telescopic rod is connected with the corresponding second telescopic rod.
5. The tunnel portal support of claim 4, wherein the running gear further comprises two fourth telescoping rods, one second telescoping rod being horizontally disposed in correspondence with one fourth telescoping rod, each fourth telescoping rod connecting the lower end of the corresponding second telescoping rod with the base plate.
6. The tunnel portal supporting device as claimed in claim 1, wherein a mounting groove is provided on a hypotenuse of each supporting block, the lower end of the third supporting rod extends to the mounting groove, and a groove is provided on the third supporting rod; the other end of the second supporting rod is provided with a convex block matched with the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310612658.7A CN116398199B (en) | 2023-05-29 | 2023-05-29 | Tunnel portal supporting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310612658.7A CN116398199B (en) | 2023-05-29 | 2023-05-29 | Tunnel portal supporting device |
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| CN116398199A CN116398199A (en) | 2023-07-07 |
| CN116398199B true CN116398199B (en) | 2023-08-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117868927B (en) * | 2024-03-11 | 2024-05-03 | 南方电网调峰调频发电有限公司工程建设管理分公司 | Tunnel supporting device |
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| JP2000145388A (en) * | 1998-11-16 | 2000-05-26 | Kanazawa Seisakusho:Kk | Form device for tunnel |
| CN109162744A (en) * | 2018-10-11 | 2019-01-08 | 长沙小如信息科技有限公司 | A kind of constructing tunnel tunnel arched door support device |
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| CN112647982A (en) * | 2020-12-24 | 2021-04-13 | 重庆北永建设工程有限公司 | Tunnel bearing structure is used in civil air defense engineering tunnel construction |
| CN112814700A (en) * | 2021-01-05 | 2021-05-18 | 深圳市天翊建设有限公司 | Shield area foundation pit support structure and construction process |
| CN114542118A (en) * | 2022-03-01 | 2022-05-27 | 安徽沃恒建设工程项目管理有限公司 | Pipe gallery tunnel assembly type construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000145388A (en) * | 1998-11-16 | 2000-05-26 | Kanazawa Seisakusho:Kk | Form device for tunnel |
| CN109162744A (en) * | 2018-10-11 | 2019-01-08 | 长沙小如信息科技有限公司 | A kind of constructing tunnel tunnel arched door support device |
| CN209959266U (en) * | 2019-05-27 | 2020-01-17 | 四川发展天瑞矿业有限公司 | Longwall formula caving mining working face supporting construction |
| CN112647982A (en) * | 2020-12-24 | 2021-04-13 | 重庆北永建设工程有限公司 | Tunnel bearing structure is used in civil air defense engineering tunnel construction |
| CN112814700A (en) * | 2021-01-05 | 2021-05-18 | 深圳市天翊建设有限公司 | Shield area foundation pit support structure and construction process |
| CN114542118A (en) * | 2022-03-01 | 2022-05-27 | 安徽沃恒建设工程项目管理有限公司 | Pipe gallery tunnel assembly type construction method |
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| CN116398199A (en) | 2023-07-07 |
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