CN113800399A - Quick-witted stop device of door - Google Patents
Quick-witted stop device of door Download PDFInfo
- Publication number
- CN113800399A CN113800399A CN202110949546.1A CN202110949546A CN113800399A CN 113800399 A CN113800399 A CN 113800399A CN 202110949546 A CN202110949546 A CN 202110949546A CN 113800399 A CN113800399 A CN 113800399A
- Authority
- CN
- China
- Prior art keywords
- shaft
- groove
- limiting device
- shock absorption
- gantry
- 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.)
- Granted
Links
- 230000035939 shock Effects 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 230000000670 limiting effect Effects 0.000 claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000013016 damping Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/50—Applications of limit circuits or of limit-switch arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/04—Safety gear for preventing collisions, e.g. between cranes or trolleys operating on the same track
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a gantry crane limiting device, which comprises: the iron shoe is fixedly installed at the bottom of the channel steel, a through rail groove is formed in the bottom of the iron shoe, and through screw holes are formed in the front surface and the rear surface of the iron shoe; the C-shaped plate is arranged on one side of the channel steel, and two bent notches which are obtuse angles and right angles are formed in two ends of the C-shaped plate; the damping columns are arranged in a plurality and are inserted into the middle of the channel steel, each damping column comprises a shaft sleeve and a shaft body, and outer springs are sleeved on the outer sides of the shaft sleeves and the shaft bodies; a gantry crane main body; according to the invention, through the arrangement of the shock absorption column and the matched auxiliary structure, a pneumatic shock absorption structure and a spring shock absorption structure can be provided, a notch which continuously reduces the air outlet efficiency is formed in the shock absorption column through the extrusion between the shaft sleeve and the shaft body, and a buffered pneumatic shock absorption structure can be formed.
Description
Technical Field
The invention relates to the field of auxiliary instruments of portal cranes, in particular to a gantry crane limiting device.
Background
A portal crane, also called a gantry crane, is a deformation of a bridge crane and is mainly used for loading and unloading outdoor goods yards, stockyard goods and bulk goods.
Because the ship repair engineering quantity is large, the time is tight, various steel structural members, piping prefabricated members, segmented prefabricated members and the like are constructed and stacked simultaneously near a walking area of a wharf portal crane (portal crane), and each member is remotely controlled by personnel of each department when the portal crane is needed to be used.
Above-mentioned baffle structure is simple metal plate body usually, and the bottom is seted up and is removed track assorted notch with the door machine, and this kind of structure not only receives the door machine to strike easily and leads to the plate body to damage when receiving the impact of door machine, and the limit switch who leads to the door machine because of striking easily damages moreover, has certain service problem.
Disclosure of Invention
The invention aims to provide a door machine limiting device to solve the problem that an existing baffle plate structure is poor in damping effect.
In order to achieve the purpose, the invention provides the following technical scheme: a door machine limiting device, comprising:
the iron shoe is fixedly installed at the bottom of the channel steel, a through rail groove is formed in the bottom of the iron shoe, and through screw holes are formed in the front surface and the rear surface of the iron shoe; the C-shaped plate is arranged on one side of the channel steel, and two bent notches which are obtuse angles and right angles are formed in two ends of the C-shaped plate; the damping columns are arranged in a plurality and are inserted into the middle of the channel steel, each damping column comprises a shaft sleeve and a shaft body, outer springs are sleeved on the outer sides of the shaft sleeves and the shaft bodies, and a taper rod is fixedly mounted at one end of each shaft body; the door machine main part.
The gantry crane comprises a gantry crane main body, wherein limit switches are arranged on two sides of the gantry crane main body, a track is further arranged at the bottom of the gantry crane main body, and the shape of the track is matched with the shape of a notch of a track groove.
The inside of channel-section steel is provided with a plurality of first spread grooves and second spread groove, the quantity of second spread groove is two, the quantity in first spread groove is unanimous with the quantity of shock attenuation post.
The notch and the shaft sleeve of the first connecting groove are matched, the outer spring is arranged on the outer side of the first connecting groove, and the outer spring is fixedly connected with the channel steel.
The outer side of the channel steel is located at the groove opening of the second connecting groove and is fixedly provided with a limiting sleeve, the two ends of the C-shaped plate are connected with limiting rings in a rotating mode, and the C-shaped plate is in threaded connection with the limiting rings and the limiting sleeve.
The inner part of the shaft sleeve is provided with a shaft groove, the joint of the taper rod and the shaft body is further provided with a gas groove, and the gas grooves are uniformly distributed in the middle of each side face of the shaft body.
The shaft groove is of a hexagonal structure, the shaft body is of a hexagonal cylinder structure, the taper rod is of a frustum structure, and the notch of the shaft groove is matched with the shaft body and the taper rod.
One end of the shaft groove, which is far away from the shaft body, is also provided with a section of cavity, and the cavity is used for gas collection.
The C-shaped plate is made of stainless steel metal, and a through connecting groove is formed in the middle of the front surface of the iron boot.
The upper portion of the track is provided with two groups of channel steel, C-shaped plates and shock absorption columns, the two groups of channel steel, C-shaped plates and shock absorption columns are symmetrically arranged on two sides of the gantry crane main body, and the C-shaped plates are matched with the position of the limit switch.
Compared with the prior art, the invention has the beneficial effects that:
through the shock absorption column and the matched auxiliary structure, a pneumatic shock absorption structure and a spring shock absorption structure can be provided, a notch which can continuously reduce the air outlet efficiency is formed in the shock absorption structure by the extrusion between the shaft sleeve and the shaft body, a buffered pneumatic shock absorption structure can be formed, the spring structure at the outer side assists in reducing the impact force, the condition that the pneumatic shock absorption structure cannot be well extruded due to the overhigh impact speed is avoided, in addition, a C-shaped plate is arranged at one side of the shock absorption column and is contacted with a limit switch through the C-shaped plate, the planar plate body can ensure the full contact with the limit switch, the dislocation is avoided, the condition that the limit switch cannot be extruded is avoided, the position limitation on the shock absorption column can be provided, in addition, the simple bending shock absorption effect can be provided, the shock absorption effect of the whole structure is stronger, the disassembly and replacement are convenient, compared with the plate body structure with the simple structure, has more practical effect.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the channel of the present invention;
FIG. 3 is a connection view of the C-shaped plate and the shock-absorbing column of the present invention;
FIG. 4 is a schematic structural view of the shock post of the present invention;
FIG. 5 is a cross-sectional view of a shock post of the present invention;
FIG. 6 is a schematic structural view of a shaft according to the present invention;
FIG. 7 is a side view of the bushing of the present invention;
fig. 8 is a connection diagram of the present invention with the door machine main body.
In FIGS. 1-8: 10. channel steel; 11. an iron shoe; 12. a screw hole; 13. a limiting sleeve; 14. a limiting ring; 15. a rail groove; 16. connecting grooves; 17. a first connecting groove; 18. a second connecting groove; 20. c-shaped plates; 30. a shock-absorbing post; 31. an outer spring; 32. a shaft sleeve; 321. a shaft groove; 33. a shaft body; 331. an air tank; 332. a tapered rod; 40. a gantry crane main body; 41. a limit switch; 42. a track.
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.
Referring to fig. 1-8, the present invention provides a technical solution: a door machine limiting device, comprising:
the steel channel 10, C type board 20, shock attenuation post 30, door owner body 40.
Wherein, the both sides of door owner body 40 are provided with limit switch 41, the bottom of door owner body 40 still is provided with track 42, and here structure is prior art, and track 42 is used for the removal of door owner body 40.
The bottom of the channel steel 10 is welded with an iron shoe 11, the bottom of the iron shoe 11 is provided with a through rail groove 15, the front surface and the rear surface of the iron shoe 11 are provided with through screw holes 12, the shape of the rail 42 is matched with the notch of the rail groove 15, the channel steel 10 can move along the rail 42 through the rail groove 15, and the screw holes 12 are used for fixing the iron shoe 11 and the rail 42 through bolts to provide an auxiliary position limiting effect;
wherein, C template 20 sets up in one side of channel-section steel 10, the both ends of C template 20 all are provided with and are obtuse angle and two right-angled notches of buckling, and C template 20 can be crooked along being obtuse angle and two right-angled notches of buckling when receiving the impact, reduces the impact that receives through the bending, avoids C template 20 to receive and strikes the condition emergence of direct fracture when too big.
The shock absorbing columns 30 are a plurality of, the shock absorbing columns 30 are all inserted into the middle position of the channel steel 10, each shock absorbing column 30 comprises a shaft sleeve 32 and a shaft body 33, the outer sides of the shaft sleeve 32 and the shaft body 33 are sleeved with an outer spring 31, one end of the shaft body 33 is welded with a taper rod 332, a shaft groove 321 is formed in the shaft sleeve 32, a gas groove 331 is formed in the joint of the taper rod 332 and the shaft body 33, the gas grooves 331 are uniformly distributed in the middle position of each side surface of the shaft body 33, the shaft groove 321 is of a hexagonal structure, the shaft body 33 is of a hexagonal cylinder structure, the taper rod 332 is of a frustum-shaped structure, the notch of the shaft groove 321 is matched with the shaft body 33 and the taper rod 332, one end of the shaft groove 321, which is far away from the shaft body 33, is provided with a cavity, the cavity is used for collecting gas, and when the C20 is impacted, the cavity can be extruded towards the inner side, make to set up in inboard shock attenuation post 30 and receive the impact, at first for outer spring 31 receives the extrusion, drive axis body 33 to the inboard removal of axle groove 321, when moving, the area that the gas groove 331 on axis body 33 surface is located the outside constantly reduces, make the inside gas of axle groove 321 constantly accelerate by extrusion exhaust's speed, nevertheless make awl pole 332 receive inside outside extrusion gas's impact, can reduce the inboard speed that removes of axis body 33, after gas groove 331 totally closed, gaseous concentrated extrusion in the cavity of axle groove 321 tail end, too big pressure provides stronger buffering effect, and because gas groove 331 who sets up, can provide slow gas acceleration process, avoid the speed that atmospheric pressure rises too fast.
The inside of the channel steel 10 is provided with a plurality of first connecting grooves 17 and second connecting grooves 18, the number of the second connecting grooves 18 is two, the number of the first connecting grooves 17 is consistent with the number of the shock absorption columns 30, notches of the first connecting grooves 17 are matched with the shaft sleeve 32, the outer spring 31 is arranged on the outer side of the first connecting grooves 17, the outer spring 31 is fixedly connected with the channel steel 10, the first connecting grooves 17 are used for limiting the shock absorption columns 30, and the second connecting grooves 18 are used for limiting the C-shaped plates 20;
the outer side of the channel steel 10 is positioned at the notch of the second connecting groove 18, a limiting sleeve 13 is further welded, two ends of the C-shaped plate 20 are rotatably connected with limiting rings 14, the limiting rings 14 are in threaded connection with the limiting sleeves 13, the C-shaped plate 20 is fixed on the outer side of the channel steel 10 in a threaded fixing mode between the limiting rings 14 and the limiting sleeves 13, the shaft sleeve 32 is cylindrical, threads are arranged on the outer side of the shaft sleeve 32, and the shaft sleeve 32 is in threaded connection with the first connecting groove 17, namely is directly fixed with the channel steel 10 in a threaded mode;
the C-shaped plate 20 is made of stainless steel metal, a through connecting groove 16 is formed in the middle of the front surface of the iron shoe 11, a metal rod body can be inserted into the connecting groove 16 to connect the iron shoes 11 on the rails on the two sides, and a limiting effect is formed;
wherein, track 42's upper portion is provided with two sets of channel-section steel 10, C template 20 and shock-absorbing column 30, and is two sets of channel-section steel 10, C template 20 and shock-absorbing column 30 are the symmetry and set up the both sides at door owner main part 40, C template 20 and limit switch 41's position phase-match, when C template 20 and limit switch 41 clashed, can close the moving mechanism of door owner main part 40.
The working principle is as follows: when the shock absorption shoe is used, the iron shoe 11 is firstly installed on the track 42, each shock absorption column 30 is screwed into the first connecting groove 17, the C-shaped plate 20 is connected with the shock absorption column 30, a notch matched with the shock absorption column 30 is formed in the inner side of the shock absorption column, a bolt is screwed from the other end to fix the shaft body 33 on the C-shaped plate 20, at the moment, two ends of the C-shaped plate 20 are fixed with the limiting sleeve 13 to complete installation, when the shock is received, the limiting switch 41 can extrude the C-shaped plate 20, the C-shaped plate 20 can deform, the outer spring 31 is extruded at the same time, the impact force is transferred by the deformation of the two structures, and after the deformation, the shaft body 33 can be extruded towards the inner side of the shaft sleeve 32, so that the air groove 331 is continuously reduced, the internal air pressure of the shaft groove 321 is continuously increased, when the air groove 331 is completely closed, the air pressure in the shaft groove 321 is too high, the shaft body 33 can not continuously move towards the inner side, and a triple shock absorption structure is arranged, the structures are connected with each other, so that the impact on the channel steel 10 is greatly reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a quick-witted stop device of door, its characterized in that includes:
a channel steel (10),
an iron shoe (11) is fixedly mounted at the bottom of the channel steel (10), a through rail groove (15) is formed in the bottom of the iron shoe (11), and through screw holes (12) are formed in the front surface and the rear surface of the iron shoe (11);
a C-shaped plate (20),
the C-shaped plate (20) is arranged on one side of the channel steel (10), and two bent notches which are obtuse angles and right angles are formed in two ends of the C-shaped plate (20);
a shock-absorbing column (30),
the number of the shock absorption columns (30) is multiple, the shock absorption columns (30) are all inserted into the middle of the channel steel (10), each shock absorption column (30) comprises a shaft sleeve (32) and a shaft body (33), outer springs (31) are sleeved on the outer sides of the shaft sleeves (32) and the shaft bodies (33), and a taper rod (332) is further fixedly mounted at one end of each shaft body (33);
a door machine main body (40).
2. A gantry limiting device as recited in claim 1, further comprising:
the both sides of door machine main part (40) are provided with limit switch (41), the bottom of door machine main part (40) still is provided with track (42), the shape of track (42) and the notch phase-match of rail groove (15).
3. A gantry limiting device as recited in claim 1, further comprising:
the inside of channel-section steel (10) is provided with a plurality of first connecting grooves (17) and second connecting groove (18), the quantity of second connecting groove (18) is two, the quantity of first connecting groove (17) is unanimous with the quantity of shock attenuation post (30).
4. A gantry limiting device as recited in claim 3, further comprising:
the notch and axle sleeve (32) phase-match of first connecting groove (17), outer spring (31) set up in the outside of first connecting groove (17), outer spring (31) and channel-section steel (10) fixed connection.
5. A gantry limiting device as recited in claim 3, comprising:
the outside of channel-section steel (10) is located notch department of second spread groove (18) and still fixed mounting has stop collar (13), the both ends of C template (20) are all rotated and are connected with spacing ring (14), with spacing ring (14) and stop collar (13) threaded connection.
6. A gantry limiting device as recited in claim 1, further comprising:
the novel bearing is characterized in that a shaft groove (321) is formed in the shaft sleeve (32), an air groove (331) is further formed in the connection position of the taper rod (332) and the shaft body (33), and the air grooves (331) are uniformly distributed in the middle of each side face of the shaft body (33).
7. The door operator limiting device according to claim 6, further comprising:
the shaft groove (321) is of a hexagonal structure, the shaft body (33) is of a hexagonal cylinder structure, the taper rod (332) is of a frustum structure, and a notch of the shaft groove (321) is matched with the shaft body (33) and the taper rod (332).
8. A gantry limiting device according to claim 7, comprising:
one end of the shaft groove (321) far away from the shaft body (33) is also provided with a section of cavity which is used for gas collection.
9. A gantry limiting device as recited in claim 1, comprising:
the C-shaped plate (20) is made of stainless steel metal, and a through connecting groove (16) is formed in the middle of the front surface of the iron shoe (11).
10. A gantry limiting device as recited in claim 2, comprising:
the upper portion of track (42) is provided with two sets of channel-section steel (10), C template (20) and shock attenuation post (30), and is two sets of channel-section steel (10), C template (20) and shock attenuation post (30) are the symmetry and set up the both sides at door owner body (40), C template (20) and limit switch (41) position phase-match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110949546.1A CN113800399B (en) | 2021-08-18 | 2021-08-18 | Door machine stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110949546.1A CN113800399B (en) | 2021-08-18 | 2021-08-18 | Door machine stop device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113800399A true CN113800399A (en) | 2021-12-17 |
| CN113800399B CN113800399B (en) | 2023-12-26 |
Family
ID=78893717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110949546.1A Active CN113800399B (en) | 2021-08-18 | 2021-08-18 | Door machine stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113800399B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020014568A1 (en) * | 2000-03-31 | 2002-02-07 | Martin Faucher | Support structures |
| CN101993007A (en) * | 2009-08-15 | 2011-03-30 | 广西华力集团有限公司 | Pipe crane hoisting arm limiting device with buffer mechanism |
| CN109012549A (en) * | 2018-09-06 | 2018-12-18 | 魏善行 | A kind of resin reaction kettle automatic blending bracket of coolant liquid circulation |
| CN109056505A (en) * | 2018-09-27 | 2018-12-21 | 北方民族大学 | A kind of bridge earthquake resistance limiting device being convenient for changing |
| CN208906998U (en) * | 2018-10-26 | 2019-05-28 | 师卫锋 | A kind of civil engineering bridge construction anticollision device, collision-prevention device of crane |
| CN211097057U (en) * | 2019-05-13 | 2020-07-28 | 三峡大学附属仁和医院 | Full-automatic floor type burning lamp for orthopedic nursing |
-
2021
- 2021-08-18 CN CN202110949546.1A patent/CN113800399B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020014568A1 (en) * | 2000-03-31 | 2002-02-07 | Martin Faucher | Support structures |
| CN101993007A (en) * | 2009-08-15 | 2011-03-30 | 广西华力集团有限公司 | Pipe crane hoisting arm limiting device with buffer mechanism |
| CN109012549A (en) * | 2018-09-06 | 2018-12-18 | 魏善行 | A kind of resin reaction kettle automatic blending bracket of coolant liquid circulation |
| CN109056505A (en) * | 2018-09-27 | 2018-12-21 | 北方民族大学 | A kind of bridge earthquake resistance limiting device being convenient for changing |
| CN208906998U (en) * | 2018-10-26 | 2019-05-28 | 师卫锋 | A kind of civil engineering bridge construction anticollision device, collision-prevention device of crane |
| CN211097057U (en) * | 2019-05-13 | 2020-07-28 | 三峡大学附属仁和医院 | Full-automatic floor type burning lamp for orthopedic nursing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113800399B (en) | 2023-12-26 |
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