CN113833352B - Rail guard for construction - Google Patents
Rail guard for construction Download PDFInfo
- Publication number
- CN113833352B CN113833352B CN202111188368.1A CN202111188368A CN113833352B CN 113833352 B CN113833352 B CN 113833352B CN 202111188368 A CN202111188368 A CN 202111188368A CN 113833352 B CN113833352 B CN 113833352B
- Authority
- CN
- China
- Prior art keywords
- baffle
- block
- drill rod
- rack
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 27
- 238000009435 building construction Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000000670 limiting effect Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims 8
- 239000002689 soil Substances 0.000 abstract description 15
- 238000005381 potential energy Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 230000036961 partial effect Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
- E04H17/22—Anchoring means therefor, e.g. specially-shaped parts entering the ground; Struts or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a protective guard for building construction, which effectively solves the problems that the protective guard is unstable in connection with the ground due to the interference of external force in the using process and vehicles and people in the vehicles are protected after the vehicles impact the protective guard; the device comprises drill rods and support rods, wherein a baffle is connected between the two support rods, the two support rods correspond to the two drill rods one by one, and the drill rods are connected with inserted rods in a sealing and sliding manner along the radial direction; after the drill rod vertically drills into soil, the plurality of inserted rods in the drill rod are transversely inserted into the soil, the stability of the drill rod is effectively guaranteed, when a vehicle with a low speed impacts the protective guard, kinetic energy of the vehicle is absorbed by the spring and converted into elastic potential energy, a buffering effect is achieved, when the vehicle with the high speed impacts the protective guard, partial kinetic energy of the vehicle is absorbed, the first rotating plate and the second rotating plate rotate for a certain angle, the vehicle which continues to move forwards is prevented from being turned over to cause secondary damage, and the safety of the vehicle and personnel is effectively guaranteed.
Description
Technical Field
The invention relates to the field of protective guards, in particular to a protective guard for building construction.
Background
In the process of urban road construction, a foundation pit needs to be dug deeply, a 2.5m high guard rail is arranged on the adjacent edge of the foundation pit of a main road, the existing guard rail is generally fixed on a road at the edge of the foundation pit through a vertically-installed expansion screw, the pre-tightening effect is realized by utilizing the principle that a steel sheet of the expansion screw is screwed inwards along with the screw and a soil layer is embedded into the periphery, and the expansion screw has the characteristics of convenience in installation and wide application range; but the expansion screw is not fixed completely and reliably, and can be loosened when the load has large vibration; the edge of a foundation pit is generally surrounded by a plurality of protective guards, each protective guard is connected with a foundation through an expansion screw, and on an urban main road, the flow of people and vehicles is large, the road surface is crowded, and the protective guards inevitably generate a shaking phenomenon due to the interference of external force; when weather changes, such as the phenomenon of strong wind, heavy rain and hail, the guard rail is easy to shake under the influence of horizontal load, the shake of the two guard rails can aggravate the loosening of the expansion screws, so that the protection effect of the guard rail is greatly reduced, even the guard rail is inclined and collapsed, the maintenance frequency of the installation positions of the guard rail and the ground is increased, and on the basis, the fixing effect of the guard rail still needs to be improved.
Meanwhile, the expansion screw is installed at one time and cannot be reused, so that waste of raw materials is caused; after the guard rail is removed, the ground still has residues of expansion screws, which aggravates the subsequent cleaning burden.
The existing protective guard is usually made of rigid materials and mainly plays roles of warning and separating, when a vehicle is out of control and collides with the protective guard, a vehicle head is in contact with the protective guard, wherein the vehicle head of the vehicle with lower impact speed collides with the protective guard to cause mechanical damage, and personnel in the vehicle can be affected seriously to cause casualties; the vehicle with high impact speed can use the impact part as a fulcrum to overturn in the direction close to the railing, and at the moment, the whole vehicle body is in contact with the railing and physically collides with the railing, so that secondary injury to people in the vehicle is caused.
Disclosure of Invention
In order to solve the technical problems, the invention provides the protective guard for building construction, which effectively solves the problems that the protective guard is not stably connected with the ground due to the interference of external force in the using process and vehicles and people in the vehicles are protected after the vehicles impact the protective guard.
The solution is as follows: a protective guard for building construction comprises two vertically arranged drill rods and two vertically arranged support rods, wherein a baffle is connected between the two support rods, the two support rods correspond to the two drill rods one by one, the interiors of the drill rods are cavities, threads are arranged on the outer side walls of the drill rods, a rotating shaft is coaxially and rotatably connected onto the drill rods, a clamping block is connected onto the upper end of the rotating shaft, a square groove is formed in the upper end surface of the clamping block, the center of the square groove is overlapped with the center of the rotating shaft, a clamping groove matched with the clamping block is connected onto the lower end of each support rod, a locking structure is connected between each clamping block and the corresponding clamping groove, a pressing block is slidably connected onto the outer side wall of each drill rod along the vertical direction, a sliding block is slidably connected onto the rotating shaft through a spline along the vertical direction, the pressing block is fixedly connected with the sliding block, when the sliding block is driven to vertically move upwards to a set distance, the sliding block is separated from the rotating shaft, and a vertically arranged first spring is connected between the upper end surface of the sliding block and the lower end surface of the sliding block, the rotary shaft is fixedly provided with a limiting block arranged below the sliding block, the drill rod is provided with a moving block arranged below the limiting block along the vertical direction in a sliding manner, an external thread is arranged on the rotary shaft, an internal thread matched with the external thread is arranged on the moving block, the rotary shaft and the moving block are in spiral transmission, the moving block is provided with a plurality of vertical first racks, the drill rod is connected with a plurality of lead screws arranged along the radial direction in a rotating manner, the lead screws are sleeved with rotating gears meshed with the first racks, the drill rod is connected with an inserted bar in a sliding manner along the radial direction in a sealing manner, the inserted bar is sleeved on the lead screws, the inserted bar is provided with an internal thread matched with the lead screws, the lead screws and the inserted bar are in spiral transmission, the rotary shaft is connected with a second spring arranged below the moving block, and the second spring is arranged vertically.
Preferably, locking mechanism includes the wedge that radially sets up along the drilling rod, and the wedge face of wedge is down and towards the drilling rod axis direction, and the radial elastic sliding connection of drilling rod is followed with the draw-in groove to the wedge, has the button along the radial elastic sliding connection of drilling rod on the draw-in groove, is connected with the rope on the button, and the one end and the button of rope are connected, and the one end of rope is kept away from the one end of drilling rod axis with the wedge and is connected, and when pressing the button, the wedge is followed the drilling rod and is radially slided to the direction of keeping away from the drilling rod axis.
Preferably, the baffle comprises first baffle and second baffle, the vertical setting of first baffle and one of them bracing piece fixed connection, the vertical setting of second baffle and another bracing piece fixed connection, first baffle and second baffle are in the coplanar, the second baffle is upper and lower extreme is equipped with the slide bar of vertical setting respectively, be equipped with along length direction on the first baffle with slide bar assorted spout, the slide bar freely slides in the spout, be connected with the third spring that the level set up between slide bar left end and the first baffle, be connected with the fourth spring that the level set up between slide bar right-hand member and the first baffle.
Preferably, a first transmission mechanism is connected between a first rotating plate and a sliding rod which are rotatably connected to the first baffle plate through a shaft arranged along the length direction of the first baffle plate, the first rotating plate rotates under the transmission of the first transmission mechanism when the sliding rod moves rightwards relative to the first baffle plate, a second rotating plate is rotatably connected to the second baffle plate through a shaft arranged along the length direction of the second baffle plate, a second transmission mechanism is connected between the second rotating plate and the first baffle plate, and the second rotating plate rotates under the action of the second transmission mechanism when the first baffle plate moves leftwards relative to the second baffle plate.
Preferably, the first transmission mechanism comprises a second rack, the second rack is connected with the first baffle in a sliding manner along the length direction of the first baffle, the second rack is positioned at the upper end of the first baffle, the length direction of the second rack is in the same direction as the length direction of the second baffle, a fifth spring is connected between the left end surface of the second rack and the first baffle, a first pull rope is connected between the second rack and one of the slide bars, the first pull rope is not in a tightened state under normal conditions, a first gear meshed with the second rack is rotatably connected onto the first baffle through a vertically arranged shaft, a first ratchet wheel is coaxially connected onto the first gear, a first pawl matched with the first ratchet wheel is rotatably connected onto the first baffle, a first torsion spring is connected between the first pawl and the first baffle, the first torsion spring enables the first pawl to be always contacted with the first ratchet wheel, and the first rotation plate is in transmission through a bevel gear pair,
preferably, the second transmission mechanism comprises a third rack, the third rack is connected with the second baffle in a sliding manner along the length direction of the second baffle, the length direction of the third rack is in the same direction as the length direction of the second baffle, a second pull rope is connected between the third rack and the first baffle, the second pull rope is not in a tightened state under normal conditions, a sixth spring is connected between the third rack and the second rotating plate, a second gear meshed with the third rack is connected to the second baffle in a rotating manner through a vertically arranged shaft, a second ratchet wheel is coaxially connected to the second gear, a second pawl matched with the second ratchet wheel is connected to the second baffle in a rotating manner, a second torsion spring is connected between the second pawl and the second baffle, the second torsion spring enables the second pawl and the second ratchet wheel to be always in contact, and the second rotating plate and the second gear are in bevel gear pair transmission.
Preferably, the first and second strings are not normally under tension.
Preferably, a rubber layer is laid on the outer surfaces of the first rotating plate and the second rotating plate.
Preferably, the end of the inserted rod far away from the center of the drill rod is a tip.
By applying the technical scheme of the invention, the invention has the following beneficial effects:
1. after the drilling rod vertically creeps into ground, in a plurality of inserted bars in the drilling rod can insert soil along the radial slip of drilling rod, drilling rod and inserted bar received a plurality of horizontal and vertical extrusion forces of soil this moment, the effectual steadiness of guaranteeing the drilling rod has strengthened the fixed effect between guard plate and the basis.
2. When a vehicle with a lower speed collides the guard rail, the first baffle plate and the second baffle plate rotate and form a certain included angle, the third spring is stretched, the fourth spring is compressed, kinetic energy brought by the vehicle is converted into potential energy of the third spring and the fourth spring to be absorbed, and the vehicle is effectively prevented from being damaged due to rigid impact.
3. When a vehicle with higher speed collides the guard rail, the first baffle plate and the second baffle plate rotate and form a certain included angle, when the third spring is stretched and the elastic potential energy of the fourth spring cannot completely absorb the kinetic energy of the vehicle, the first transmission mechanism and the second transmission mechanism are triggered, the first rotating plate and the second rotating plate rotate for a certain angle and are arranged right above the vehicle, rubber is adhered to the outer side surfaces of the first rotating plate and the second rotating plate, the first rotating plate and the second rotating plate block the forward vehicle from overturning, and the vehicle and personnel in the vehicle are prevented from being secondarily injured.
4. When the protective guard is removed, the drill rod can be directly removed and can be continuously recycled, the waste of raw materials is reduced, and the construction cost is effectively saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a partial structural schematic diagram of the locking mechanism of the present invention.
Fig. 5 is a perspective sectional view of the drill rod of the present invention.
Fig. 6 is an enlarged view of a portion a of fig. 3 according to the present invention.
FIG. 7 is a top sectional view of the locking mechanism of the present invention.
Fig. 8 is a schematic structural view of a first rotating plate and the like of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a drill stem; 2. a support bar; 3. a first baffle plate; 4. a second baffle; 5. a rotating shaft; 6. a clamping block; 7. a card slot; 8. a square groove; 9. pressing into blocks; 10. a slider; 11. a first spring; 12. a limiting block; 13. a moving block; 14. a second spring; 15. a first rack; 16. a lead screw; 17. a rotating gear; 18. inserting a rod; 19. a wedge block; 20. a seventh spring; 21. a button; 22. an eighth spring; 23. a rope; 24. a first baffle plate; 25. a second baffle; 26. a slide bar; 27. a chute; 28. a third spring; 29. a fourth spring; 30. a second rack; 31. a fifth spring; 32. a second gear; 33. a first ratchet wheel; 34. a first pawl; 35. a first pull cord; 36. a second pull cord; 37. a third rack; 38. a sixth spring; 39. a second gear; 40. a second ratchet; 41. a second pawl; 42. a first rotating plate; 43. a second rotating plate; 44. a first gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes the embodiments of the present invention in further detail with reference to fig. 1 to 8.
Embodiment 1, a protective guard for building construction, comprising two vertically arranged drill rods 1 and two vertically arranged support rods 2, wherein the two support rods 2 correspond to the two drill rods 1 one by one, the support rods 2 and the drill rods 1 are coaxially arranged, a baffle is connected between the two support rods 2 and consists of a first baffle 3 and a second baffle 4, the inside of the drill rod 1 is a cavity, the outer side wall of the drill rod 1 is provided with threads, the drill rod 1 is coaxially and rotatably connected with a rotating shaft 5, the lower end of the rotating shaft 5 is arranged in the drill rod 1 and rotatably connected with the lower end of the drill rod 1, the upper end of the rotating shaft 5 is arranged outside the drill rod 1, the upper end of the rotating shaft 5 is connected with a fixture block 6, the fixture block 6 is circular, the fixture block 6 is coaxially and fixedly connected with the rotating shaft 5, the upper end face of the fixture block 6 is provided with a square groove 8, the center of the square groove 8 coincides with the center of the rotating shaft 5, and the square groove 8 is arranged for use when the drill rod 1 is installed, when in use, the electric drill is held manually, a square block matched with the square groove 8 is sleeved on an output shaft of the electric drill, the electric drill drives the square block to rotate, the square block drives the rotating shaft 5 to rotate, the square block and the electric drill can be matched for repeated cycle use, the lower end of the support rod 2 is connected with a clamping groove 7 matched with the clamping block 6, a locking structure is connected between the clamping block 6 and the clamping groove 7, the purpose of the locking mechanism is that after the clamping block 6 is directly inserted into the clamping groove 7 to be matched with the clamping groove 7, the clamping groove 7 cannot be separated from the clamping block 6, after the locking mechanism is unlocked, the clamping block 6 can be separated from the clamping groove 7, the outer side wall of the drill rod 1 is provided with an external spline, the pressing block 9 is provided with an internal spline matched with the external spline on the drill rod 1, the pressing block 9 and the drill rod 1 slide along the vertical direction, the upper end of the rotating shaft 5 is provided with an external spline, the sliding block 10 is provided with an internal spline matched with the external spline on the rotating shaft 5, the sliding block 10 and the rotating shaft 5 slide along the vertical direction, the pressing block 9 is fixedly connected with the sliding block 10, when the pressing block 9 drives the sliding block 10 to vertically move upwards for a certain distance, an internal spline on the sliding block 10 is separated from an external spline on the rotating shaft 5, a vertically arranged first spring 11 is connected between the upper end surface of the sliding block 10 and the lower end surface of the clamping block 6, the first spring 11 provides a vertical downward thrust for the sliding block 10, a limiting block 12 arranged below the sliding block 10 is fixedly arranged on the rotating shaft 5, the limiting block 12 is positioned in the drill rod 1, an external spline is arranged on the inner side wall of the drill rod 1, a key slot matched with the external spline on the inner side wall of the drill rod 1 is arranged on the moving block 13, the moving block 13 and the drill rod 1 slide along the vertical direction, an external thread is arranged on the rotating shaft 5, an internal thread matched with the external thread is arranged on the moving block 13, the rotating shaft 5 and the moving block 13 are in screw transmission through the thread, and a second spring 14 positioned below the moving block 13 is connected on the rotating shaft 5, the second spring 14 is vertically arranged, the lower end of the second spring 14 is connected with the rotating shaft 5, the upper end of the second spring 14 is a free end, the range of the external thread on the rotating shaft 5 is between the lower end surface of the limit block 12 and the upper end of the second spring 14, the moving block 13 is vertically provided with two first racks 15, the drill rod 1 is rotatably connected with two pairs of screw rods 16 arranged in the drill rod 1, the screw rods 16 are radially arranged, each pair of screw rods 16 is oppositely arranged on two sides of the drill rod 1 relative to the axial direction of the drill rod 1, one end of each screw rod 16 close to the axial direction of the drill rod 1 is sleeved with a rotating gear 17 meshed with the first rack 15, the other end of each screw rod 16 is sleeved with an inserted rod 18, the inserted rod 18 is provided with internal threads matched with the screw rod 16, the screw rods 16 and the inserted rods 18 are in screw transmission through threads, when the screw rods 16 rotate forwards, the inserted rods 18 move towards the direction far away from the axial direction of the drill rod 1, the side wall of the drill rod 1 is provided with 18 holes, the inserted rods 18 holes are arranged between two adjacent threads, the inserted link 18 is in hole sealing sliding fit with the inserted link 18, in an initial state, the inserted link 18 penetrates through the wall of the drill rod 1, the vertex of the inserted link 18 is overlapped with the outer side wall of the drill rod 1, and the other end of the inserted link 18 is arranged in the drill rod 1.
When the electric drill is used, when a worker installs the drill rod 1, the worker holds an electric drill, a square block matched with the square groove 8 is sleeved on an output shaft of the electric drill, the square block is inserted into the square groove 8, the top point of the drill rod 1 is contacted with the ground, a forward rotation switch of the electric drill is started, the worker presses the electric drill while drilling during construction, the electric drill drives the square block to rotate forward, the rotating shaft 5 rotates forward under the action of the electric drill, the rotating shaft 5 drives the sliding block 10 to rotate forward, the sliding block 10 drives the pressing block 9 to rotate forward, the pressing block 9 drives the drill rod 1 to rotate forward, the moving block 13 is also synchronously rotated forward with the drill rod 1 and the rotating shaft 5, when the drill rod 1 rotates forward, the drill rod 1 starts to drill downwards under the action of the external thread on the outer side wall of the drill rod 1 and the worker under the pressing action, when the drill rod 1 drills to the lower end face of the pressing block 9 to be contacted with the ground, the pressing block 9 is subjected to a vertical upward reverse action force on the ground, when the drill rod 1 moves downwards, the pressing block 9 rubs with the ground, the pressing block 9 moves upwards relative to the drill rod 1 while rotating and rotating, the pressing block 9 drives the sliding block 10 to move upwards relative to the drill rod 1 when moving upwards relative to the drill rod 1, when the sliding block 10 moves to an inner spline on the sliding block 10 relative to the drill rod 1 and is separated from an outer spline on the rotating shaft 5, the sliding block 10 stops rotating, the pressing block 9 stops rotating at the same time, the drill rod 1 stops rotating at the same time, the moving block 13 also stops rotating at the same time, when the drill rod 1 stops rotating, the rotating shaft 5 still continues to rotate, at the moment, the moving block 13 has two moving trends, one downward moving trend and one trend for driving the drill rod 1 to rotate, because the external thread on the outer side wall of the drill rod 1 and the soil have great extrusion resistance, in addition, the lower end face of the pressing block 9 contacts with the ground to generate great extrusion force, at the drill rod 1 cannot continue to drill downwards, and the great resistance needs to be overcome when the moving block 13 is driving the drill rod 1 to rotate forwards, because the rotating shaft 5 and the moving block 13 are in spiral transmission, the possibility that the pressing block 9 drives the drill rod 1 to rotate is eliminated, the moving block 13 vertically moves downwards relative to the drill rod 1 under the action of the spiral transmission of the rotating shaft 5, the moving block 13 drives the first rack 15 to vertically move downwards, the rotating gear 17 rotates forwards under the action of the first rack 15, the rotating gear 17 drives the lead screw 16 to rotate forwards, the inserted rod 18 moves along the radial direction of the drill rod 1 in a direction away from the axis of the drill rod 1 under the action of the lead screw 16, the inserted rod 18 penetrates through the inserted rod 18 on the side wall of the drill rod 1 to be inserted into soil, when the moving block 13 moves downwards and is separated from the external thread on the rotating shaft 5, the second spring 14 is compressed, the second spring 14 provides a vertical upward thrust for the moving block 13, at the moment, the first rack 15 does not move downwards, the rotating gear 17 stops rotating, the lead screw 16 stops rotating, and the inserted rod 18 reaches the maximum stroke, however, the inserted rod 18 is still in threaded connection with the screw rod 16, at this time, the installation of the drill rod 1 is completed, then another drill rod 1 is installed, and after the installation of the two drill rods 1 is completed, the clamping grooves 7 on the two support rods 2 are only required to be installed in a matched manner with the clamping blocks 6 on the rotating shaft 5.
When the drill rod 1 is dismounted, a worker only needs to reversely rotate the electric drill, the worker still needs to forcibly press the electric drill to rotate when the electric drill reversely rotates, the moving block 13 is connected with the external thread on the rotating shaft 5 under the action of the second spring 14, the moving block 13 vertically moves upwards, the moving block 13 drives the first rack 15 to move upwards, the rotating gear 17 reversely rotates under the action of the first rack 15, the rotating gear 17 drives the lead screw 16 to reversely rotate, the inserted rod 18 moves into the drill rod 1 under the action of the lead screw 16, the moving block 13 then moves upwards relative to the drill rod 1, when the moving block 13 moves to be in contact with the limiting block 12, the moving block 13 cannot move any more, the moving block 13 synchronously reversely rotates under the action of the rotating shaft 5, the moving block 13 drives the drill rod 1 to reversely rotate while reversely rotating, when the drill rod 1 reversely rotates, the worker does not forcibly press the drill rod 1, and the drill rod 1 gradually vertically moves upwards under the reactive force between the external thread on the side wall and soil, the sliding block 10 moves downwards relative to the rotating shaft 5 under the action of the first spring 11, and when the sliding block 10 moves to the inner spline on the sliding block 10 to be matched with the outer spline on the rotating shaft 5, the sliding block 10, the pressing block 9, the drill rod 1 and the rotating shaft 5 synchronously rotate reversely until the drill rod 1 is completely drilled out of the ground.
Embodiment 2, on the basis of embodiment 1, the locking mechanism includes two wedge blocks 19 arranged along the radial direction of the drill rod 1, a wedge surface of each wedge block 19 is used in cooperation with a fixture block 6, the wedge surface of each wedge block 19 faces downward and towards the axial direction of the drill rod 1, each wedge block 19 and each fixture groove 7 slide along the radial direction of the drill rod 1, a seventh spring 20 is connected between each wedge block 19 and each fixture groove 7, each seventh spring 20 provides the wedge block 19 with a thrust along the radial direction of the drill rod 1 and towards the axial direction of the drill rod 1, each fixture groove 7 is connected with a button 21 in a sliding manner along the radial direction of the drill rod 1, an eighth spring 22 is connected between each button 21 and each fixture groove 7, each eighth spring 22 provides the button 21 with a thrust along the radial direction of the drill rod 1 and away from the axial direction of the drill rod 1, each button 21 is connected with a rope 23, the rope 23 is made of a high-strength steel wire, one end of the rope 23 is connected with each button 21, one end of the rope 23 is connected with one end of the wedge block 19 far away from the axial direction of the drill rod 1, when the button 21 is pressed, the seventh spring 20 and the eighth spring 22 are compressed and the wedge-shaped block 19 is moved in a direction radially away from the axis of the drill rod 1 along the drill rod 1.
When using, when the draw-in groove 7 on the bracing piece 2 and the cooperation of the fixture block 6 in the pivot 5 are installed, wedge 19's wedge at first contacts with fixture block 6, at this moment, draw-in groove 7 is for fixture block 6 downstream, wedge 19 is to keeping away from the direction removal of fixture block 6 under the effect of fixture block 6, when draw-in groove 7 moves the up end contact of draw-in groove 7 with fixture block 6, wedge 19 resets under seventh spring 20's effect, fixture block 6 is tightly blocked by two wedge 19 and is died, when draw-in groove 7 and fixture block 6 installation were accomplished, bracing piece 2 can rotate for drilling rod 1, when needing fixture block 6 and draw-in groove 7 separation, press button 21, upwards pull out bracing piece 2 with strength, make fixture block 6 and draw-in groove 7 separation.
Embodiment 3, based on embodiment 1, the baffle plate comprises a first baffle plate 3 and a second baffle plate 4, the first baffle plate 3 is vertically disposed and fixedly connected to the left side supporting rod 2, the second baffle plate 4 is vertically disposed and fixedly connected to the right side supporting rod 2, the first baffle plate 3 and the second baffle plate 4 are in the same plane, a gap is left between the first baffle plate 3 and the second baffle plate 4, when the first baffle plate 3 and the second baffle plate 4 rotate around the supporting rod 2, the first baffle plate 3 and the second baffle plate 4 do not interfere with each other, the upper end and the lower end of the second baffle plate 4 are respectively provided with a vertically disposed sliding rod 26, the first baffle plate 3 is provided with a sliding slot 27 matching with the sliding rod 26 along the length direction, the sliding rod 26 freely slides in the sliding slot 27, a third spring 28 is connected between the left end of the sliding rod 26 and the first baffle plate 3, the third spring 28 is horizontally disposed, the third spring 28 provides the sliding rod 26 with a pulling force along the length direction of the first baffle plate 3 and deviating from the sliding rod 26, a fourth spring 29 is connected between the right end of slide bar 26 and first block 3, and fourth spring 29 applies a pushing force to slide bar 26 along the length of first block 3 and toward slide bar 26.
In use, when a vehicle impacts the lower part of the first baffle plate 3 or the second baffle plate 4, the first baffle plate 3 and the second baffle plate 4 rotate relative to the drill rod 1 under the impact of the vehicle, the third spring 28 is stretched, the fourth spring 29 is compressed, the kinetic energy of the vehicle is converted into the potential energy of the spring, the vehicle is cushioned,
embodiment 4 is based on embodiment 3, in which a first rotation plate 42 is rotatably connected to the first baffle plate 3 via a shaft disposed along a length direction of the first baffle plate (3), a first transmission mechanism is connected between the first rotation plate 42 and the slide bar (26), the first transmission mechanism includes a second rack 30, the second rack 30 is slidably connected to the first baffle plate 3 along the length direction of the first baffle plate 3, the length direction of the second rack 30 is the same as the length direction of the first baffle plate 3, a fifth spring 31 is connected between a left end surface of the second rack 30 and the first baffle plate 3, the fifth spring 31 provides a pulling force to the second rack 30 along the length direction of the first baffle plate 3 and away from the second rack 30, a first pulling rope 35 is connected between the second rack 30 and the slide bar 26, the first pulling rope 35 is not under a tightened state under normal conditions, the first pulling rope 35 is made of a high-strength steel wire, a first gear 44 engaged with the second rack 30 is rotatably connected to the first baffle plate 3 via a vertically disposed shaft, the first gear 44 is coaxially connected with a first ratchet wheel 33, the first baffle plate 3 is rotatably connected with a first pawl 34 matched with the first ratchet wheel 33, a first torsion spring is connected between the first pawl 34 and the first baffle plate 3, the first pawl 34 and the first ratchet wheel 33 are kept in a state of being always in contact by the first torsion spring, the first baffle plate 3 is rotatably connected with a first rotating plate 42 through a shaft arranged along the length direction of the first baffle plate 3, and the first rotating plate 42 and the first gear 44 are in bevel gear pair transmission.
A second rotating plate 43 is rotatably connected to the second baffle 4 through a shaft arranged along the length direction of the second baffle 4, a second transmission mechanism is connected between the second rotating plate 43 and the sliding rod 26, the second transmission mechanism comprises a third rack 37, the third rack 37 is slidably connected to the second baffle 4 along the length direction of the second baffle 4, the length direction of the third rack 37 is the same as the length direction of the second baffle 4, a second pull rope 36 is connected between the third rack 37 and the first baffle 3, the second pull rope 36 is not in a tight state in an initial state, the second pull rope 36 is made of a high-strength steel wire, a sixth spring 38 is connected between the third rack 37 and the second baffle 4, the sixth spring 38 gives a pulling force to the third rack 37 along the length direction of the second baffle 4 and away from the third rack 37, a second gear 39 meshed with the third rack 37 is rotatably connected to the second baffle 4 through a shaft arranged vertically, the second gear 39 is coaxially connected with a second ratchet wheel 40, a second pawl 41 matched with the second ratchet wheel 40 is rotatably connected to the second baffle 4, a second torsion spring is connected between the second pawl 41 and the second baffle 4, the second pawl 41 and the second ratchet wheel 40 are kept in a contact state all the time by the second torsion spring, a second rotating plate 43 is rotatably connected to the second baffle 4 through a shaft arranged along the length direction of the second baffle 4, and the second rotating plate 43 and the second gear 39 are in bevel gear pair transmission.
In use, when a vehicle with a higher speed impacts the guard rail, the elastic potential energy of the third spring 28 and the fourth spring 29 is insufficient to completely absorb the kinetic energy of the vehicle, the third spring 28 continues to be stretched, the fourth spring 29 continues to be compressed, the first pull rope 35 which is not tightened is stretched by the sliding rod 26, the second pull rope 36 which is not tightened is stretched by the first baffle plate 3, the second rack 30 moves rightwards, the third rack 37 moves leftwards, the first gear 44 and the second gear 39 rotate, the first rotating plate 42 and the second rotating plate 43 rotate right above the vehicle, a layer of rubber layer is laid on the outer surfaces of the first rotating plate 42 and the second rotating plate 43 to prevent the vehicle from being damaged secondarily by the first rotating plate 42 and the second rotating plate 43 when the vehicle overturns, the first rotating plate 42 does not reset under the action of the first ratchet wheel 33 and the first pawl 34 after rotating, after the second rotating plate 43 rotates, the second rotating plate cannot reset under the action of the second ratchet wheel 40 and the second ratchet teeth, and when the first rotating plate 42 and the second rotating plate 43 need to reset, only the first pawl 34 and the second pawl 41 need to be shifted to be separated from the first ratchet wheel 33 and the second ratchet wheel 40, and then the first rotating plate 42 and the second rotating plate 43 are rotated to reset.
When the invention is used, a construction worker presses the electric drill by holding the electric drill, a square block matched with the square groove 8 is fixedly sleeved on the electric drill, the top of a drill rod 1 is contacted with a ground installation position, the worker presses the electric drill and turns on a forward rotation switch of the electric drill, the drill rod 1 rotates forward under the action of the electric drill, the drill rod 1 rotates downward when rotating forward, when the drill rod 1 drills until a press block 9 is contacted with the ground, the press block 9 moves upward relative to the drill rod 1 under the action of the ground, when the press block 10 moves to be separated from a rotating shaft 5, the slide block 10 stops rotating, the press block 9 and the drill rod 1 also stop rotating, a moving block 13 moves downward under the action of the rotating shaft 5, a first rack 15 moves downward under the action of the moving block 13, the rotating gear 17 rotates forward under the action of the first rack 15, a screw rod 16 rotates forward under the action of the rotating gear 17, an inserted rod 18 passes through an inserted rod 18 hole on the side wall of the drill rod 1 to be inserted into soil under the action of the screw rod 16, after the drill rod 1 is installed, the next drill rod 1 is installed, when two drill rods 1 are all installed, the support rod 2 is installed, the clamping groove 7 in the support rod 2 is installed in a matched mode with the clamping block 6 in the rotating shaft 5, the locking mechanism is locked after the clamping groove 7 and the clamping block 6 are installed, the support rod 2 is guaranteed not to be separated from the drill rod 1 when being impacted by a vehicle, when the baffle is slightly impacted by the vehicle, kinetic energy of the vehicle is converted into potential energy of a third spring 28 and a fourth spring 29, the potential energy of the third spring 28 and the fourth spring 29 plays a buffering role on the vehicle, when the baffle is impacted by the vehicle with higher speed, after the third spring 28 and the fourth spring 29 absorb partial kinetic energy of the vehicle, the first rotating plate 42 and the second rotating plate 43 are opened, the vehicle is prevented from crossing over the baffle, secondary injury to the vehicle and personnel in the vehicle is prevented, when the first rotating plate 42 and the second rotating plate 43 are reset, the first pawl 34 is manually stirred to be separated from the first ratchet wheel 33, then the first rotating plate 42 is rotated to reset, the second pawl 41 is manually shifted to separate from the second ratchet wheel 40, and then the second rotating plate 43 is rotated to reset; when needs are demolishd, press the button 21 switch, upwards lift up bracing piece 2 and make draw-in groove 7 and fixture block 6 separation, then the construction worker holds the electric drill by hand, overlap on the electric drill output shaft inherent with square groove 8 assorted square piece, make square piece and square groove 8 cooperation, the electric drill of reversal, in inserted bar 18 withdrawed to drilling rod 1 earlier, in the drilling rod 1 was all withdrawed to inserted bar 18 back, drilling rod 1 drilled out ground under the effect of outside wall screw thread and soil, dismantlement completion.
When the drill rod vertically drills into soil, the plurality of inserted rods in the drill rod are transversely inserted into the soil, the stability of the drill rod is effectively guaranteed, the fixing effect between the protective guard and the foundation is enhanced, when a vehicle with a low speed impacts the protective guard, the kinetic energy of the vehicle is absorbed by the third spring and the fourth spring and converted into elastic potential energy, the vehicle is buffered, when the vehicle with a high speed impacts the protective guard, part of the kinetic energy of the vehicle is absorbed, the first rotating plate and the second rotating plate rotate for a certain angle, the vehicle which continues to move forwards is prevented from overturning, secondary injury to the vehicle and personnel in the vehicle is prevented, the safety of the vehicle and the personnel is effectively guaranteed, when the protective guard is dismounted, the drill rod can be directly dismounted and continuously recycled, and the construction cost is effectively saved.
Claims (8)
1. A protective guard for building construction comprises two vertically arranged drill rods (1) and two vertically arranged support rods (2), and is characterized in that a baffle is connected between the two support rods (2), the two support rods (2) correspond to the two drill rods (1) one by one, a cavity is formed inside the drill rods (1), threads are arranged on the outer side wall of each drill rod (1), a rotating shaft (5) is coaxially and rotatably connected onto each drill rod (1), a clamping block (6) is connected onto the upper end of each rotating shaft (5), a square groove (8) is formed in the upper end face of each clamping block (6), the center of each square groove (8) coincides with the center of each rotating shaft (5), a clamping groove (7) matched with each clamping block (6) is connected onto the lower end of each support rod (2), a locking structure is connected between each clamping block (6) and each clamping groove (7), a pressing block (9) is slidably connected onto the outer side wall of each drill rod (1) along the vertical direction, a sliding block (10) is slidably connected onto each rotating shaft (5) along the vertical direction through a spline, the pressing block (9) is fixedly connected with the sliding block (10), when the pressing block (9) drives the sliding block (10) to vertically move upwards to a set distance, the sliding block (10) is separated from the rotating shaft (5), a first spring (11) which is vertically arranged is connected between the upper end face of the sliding block (10) and the lower end face of the clamping block (6), a limiting block (12) which is arranged below the sliding block (10) is fixed on the rotating shaft (5), a moving block (13) which is arranged below the limiting block (12) is connected on the drill rod (1) in a sliding mode along the vertical direction, an external thread is arranged on the rotating shaft (5), an internal thread which is matched with the external thread is arranged on the moving block (13), the rotating shaft (5) and the moving block (13) are in spiral transmission, a plurality of vertical first racks (15) are arranged on the moving block (13), a plurality of lead screws (16) which are arranged along the radial direction are connected on the drill rod (1) in a rotating mode, a rotating gear (17) which is meshed with the first racks (15) is sleeved on the lead screws (16), the drill rod (1) is connected with an insert rod (18) in a sliding mode along the radial direction in a sealing mode, the insert rod (18) is sleeved on a lead screw (16), internal threads matched with the lead screw (16) are formed in the insert rod (18), the lead screw (16) and the insert rod (18) are in spiral transmission, a second spring (14) located below a moving block (13) is connected to a rotating shaft (5), and the second spring (14) is vertically arranged.
2. The protective guard for building construction according to claim 1, wherein the locking structure comprises a wedge-shaped block (19) which is arranged along the radial direction of the drill rod (1), the wedge-shaped surface of the wedge-shaped block (19) faces downwards and towards the axial direction of the drill rod (1), the wedge-shaped block (19) is elastically and slidably connected with the clamping groove (7) along the radial direction of the drill rod (1), the clamping groove (7) is elastically and slidably connected with a button (21) along the radial direction of the drill rod (1), a rope is connected onto the button (21), one end of the rope is connected with one end, far away from the axial direction of the drill rod (1), of the wedge-shaped block (19), and when the button (21) is pressed, the wedge-shaped block (19) slides along the radial direction, far away from the axial direction of the drill rod (1), along the drill rod (1).
3. Guard rail for building construction according to claim 1, characterized in that the baffle consists of a first baffle (3) and a second baffle (4), the first baffle (3) is vertically arranged and fixedly connected with one of the support rods (2), the second baffle (4) is vertically arranged and fixedly connected with the other support rod (2), the first baffle (3) and the second baffle (4) are in the same plane, the second baffle (4) is arranged on the second baffle (4), the lower extreme is equipped with slide bar (26) of vertical setting respectively, is equipped with on first baffle (3) along length direction with slide bar (26) assorted spout (27), slide bar (26) freely slide in spout (27), be connected with third spring (28) that the level set up between slide bar (26) left end and first baffle (3), be connected with fourth spring (29) that the level set up between slide bar (26) right-hand member and first baffle (3).
4. A guard rail for building construction according to claim 3, wherein a first rotation plate (42) is rotatably connected to the first barrier (3) through a shaft provided in a longitudinal direction of the first barrier (3), a first transmission mechanism is connected between the first rotation plate (42) and the slide bar (26), the first rotation plate (42) is rotated by the first transmission mechanism when the slide bar (26) moves rightward with respect to the first barrier (3), a second rotation plate (43) is rotatably connected to the second barrier (4) through a shaft provided in a longitudinal direction of the second barrier (4), a second transmission mechanism is connected between the second rotation plate (43) and the first barrier (3), and the second rotation plate (43) is rotated by the second transmission mechanism when the first barrier (3) moves leftward with respect to the second barrier (4).
5. The guard rail for building construction according to claim 4, wherein the first transmission mechanism comprises a second rack (30), the second rack (30) is connected with the first baffle (3) in a sliding manner along the length direction of the first baffle (3), the second rack (30) is positioned at the upper end of the first baffle (3), the length direction of the second rack (30) is in the same direction as the length direction of the second baffle (4), a fifth spring (31) is connected between the left end surface of the second rack (30) and the first baffle (3), a first pull rope (35) is connected between the second rack (30) and one of the sliding rods (26), the first pull rope (35) is not in a tightened state under normal conditions, a first gear (44) meshed with the second rack (30) is rotatably connected to the first baffle (3) through a vertically arranged shaft, a first ratchet wheel (33) is coaxially connected to the first gear (44), a first pawl (34) matched with the first ratchet wheel (33) is connected to the first baffle plate (3) in a rotating mode, a first torsion spring is connected between the first pawl (34) and the first baffle plate (3), the first pawl (34) is kept in contact with the first ratchet wheel (33) all the time through the first torsion spring, and the first rotating plate (42) and the first gear (44) are in bevel gear pair transmission.
6. The protective guard for building construction according to claim 4, wherein the second transmission mechanism comprises a third rack (37), the third rack (37) is connected with the second baffle (4) in a sliding manner along the length direction of the second baffle (4), the length direction of the third rack (37) is in the same direction as the length direction of the second baffle (4), a second pull rope (36) is connected between the third rack (37) and the first baffle (3), the second pull rope (36) is not in a tightened state under normal conditions, a sixth spring (38) is connected between the third rack (37) and the second rotating plate (43), a second gear (39) meshed with the third rack (37) is connected to the second baffle (4) in a rotating manner through a vertically arranged shaft, a second ratchet wheel (40) is coaxially connected to the second gear (39), and a second pawl (41) matched with the second ratchet wheel (40) is connected to the second baffle (4) in a rotating manner, a second torsion spring is connected between the second pawl (41) and the second baffle (4), the second pawl (41) and the second ratchet wheel (40) are kept in constant contact through the second torsion spring, and the second rotating plate (43) and the second gear (39) are in transmission through a bevel gear pair.
7. A guard rail for building construction according to claim 4, wherein a rubber layer is coated on the outer surfaces of the first rotating plate (42) and the second rotating plate (43).
8. Guard rail for building construction according to claim 1, characterized in that the end of the inserted rod (18) away from the centre of the drill rod (1) is pointed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188368.1A CN113833352B (en) | 2021-10-12 | 2021-10-12 | Rail guard for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188368.1A CN113833352B (en) | 2021-10-12 | 2021-10-12 | Rail guard for construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113833352A CN113833352A (en) | 2021-12-24 |
| CN113833352B true CN113833352B (en) | 2022-05-31 |
Family
ID=78968742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111188368.1A Expired - Fee Related CN113833352B (en) | 2021-10-12 | 2021-10-12 | Rail guard for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833352B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434270B (en) * | 2022-10-08 | 2023-09-26 | 江苏旺材科技有限公司 | Semi-rigid superposed beam anti-collision guardrail and construction method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4801128A (en) * | 1987-03-06 | 1989-01-31 | Lawrence Taylor | Ground imbedded support system |
| US20060081826A1 (en) * | 2004-10-18 | 2006-04-20 | Kuo-Ho Cheng | Protective railing |
| CN207513309U (en) * | 2017-10-31 | 2018-06-19 | 李晓锐 | A kind of construction safety column convenient for assembling |
| CN208024084U (en) * | 2018-03-05 | 2018-10-30 | 岳庆伟 | Municipal administration protection isolated column |
| CN210422126U (en) * | 2019-06-21 | 2020-04-28 | 四川同达建设有限公司 | Building construction rail guard |
| CN112443195B (en) * | 2020-12-15 | 2021-11-19 | 浙江博元建设股份有限公司 | BIM-based protective guard for building engineering |
-
2021
- 2021-10-12 CN CN202111188368.1A patent/CN113833352B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN113833352A (en) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113833352B (en) | Rail guard for construction | |
| CN112523437B (en) | Roof snow shoveling device | |
| CN220035235U (en) | Dam side slope construction protective structure | |
| CN210684457U (en) | Road and bridge rail guard | |
| CN110241756B (en) | Intelligent roadblock safety anti-collision device | |
| CN111424588A (en) | Rail guard with energy-absorbing device is used for alleviating road surface collision | |
| CN108533062B (en) | Construction is with enclosing fender | |
| CN114876255B (en) | Cantilever type parking equipment with two layers of lifting and traversing functions and working method thereof | |
| CN213102641U (en) | Construction waste recovery device | |
| CN213804961U (en) | Building bridge protection network with breakage-proof stone drops | |
| CN114784740A (en) | Convertible intelligent cable pit support of shrink | |
| CN217352128U (en) | Bridge guardrail with support frame | |
| CN108978589B (en) | Movable water and soil conservation separates unrestrained device | |
| CN214215802U (en) | Device for railway safe driving | |
| CN214330006U (en) | Safety device is used in building engineering construction | |
| CN212497107U (en) | Construction steel rust cleaning device | |
| CN201415852Y (en) | Manual rail unloading safety protector | |
| CN216518065U (en) | Protection device for be used for tunnel construction | |
| CN114802340B (en) | Duplex car arrester for mine construction | |
| CN211335991U (en) | Rail holding type car arrester | |
| CN220868065U (en) | Buffer gear and banister delay device | |
| CN213836416U (en) | Impact-resistant hydraulic lifting type roadblock machine | |
| CN215482588U (en) | Traffic safety guardrail for road and bridge | |
| CN211037742U (en) | Safety device is used in construction | |
| CN216109870U (en) | Civil construction engineering construction access way protective device structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220510 Address after: 250000 Room 202, No. 54 Ma'anshan Road, Shizhong District, Jinan City, Shandong Province Applicant after: Shandong Taishan Construction Engineering Development Group Co.,Ltd. Address before: 226600 No.18 Zhongba South Road, Hai'an town, Hai'an County, Nantong City, Jiangsu Province Applicant before: JIANGSU SUZHONG CONSTRUCTION GROUP Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220531 |