CN113800399B - Door machine stop device - Google Patents
Door machine stop device Download PDFInfo
- Publication number
- CN113800399B CN113800399B CN202110949546.1A CN202110949546A CN113800399B CN 113800399 B CN113800399 B CN 113800399B CN 202110949546 A CN202110949546 A CN 202110949546A CN 113800399 B CN113800399 B CN 113800399B
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- China
- Prior art keywords
- shaft
- groove
- shaped plate
- door machine
- channel
- 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.)
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- 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 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 230000035939 shock Effects 0.000 claims abstract description 36
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 230000000670 limiting effect Effects 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 4
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion 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
- 238000010276 construction 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
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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 door machine limiting device, which comprises: the steel channel is characterized in that an iron shoe is fixedly arranged at the bottom of the steel channel, a penetrating rail groove is formed in the bottom of the iron shoe, and penetrating 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 bending notches with obtuse angles and right angles are formed at two ends of the C-shaped plate; the damping columns are multiple in number and are inserted into the middle positions of the channel steel, each damping column comprises a shaft sleeve and a shaft body, and an outer spring is sleeved on the outer sides of the shaft sleeve and the shaft body; a door machine main body; according to the invention, through the arranged shock absorption column and the matched auxiliary structure, the pneumatic shock absorption structure and the spring shock absorption structure can be provided, and the inside of the shock absorption structure is extruded between the shaft sleeve and the shaft body to form the notch which continuously reduces the air outlet efficiency, so that the buffer pneumatic shock absorption structure can be formed.
Description
Technical Field
The invention relates to the field of auxiliary appliances of gantry cranes, in particular to a gantry crane limiting device.
Background
The portal crane, also called portal crane, is a variant of bridge crane, and is mainly used for loading and unloading operations of outdoor goods yard, stock yard goods and bulk goods.
Because the ship repairing engineering quantity is large, the time is tight, various steel structural members, pipe system prefabricated members, segmented prefabricated members and the like are arranged nearby a wharf portal crane (portal crane) walking area, construction and stacking are carried out simultaneously, when the portal crane is needed to be used, each member is operated by personnel of each department in a remote control mode, the portal crane can not be uniformly coordinated and commanded due to the fact that the portal crane is involved, the portal crane and the hanging parts thereof can not be uniformly and coordinately operated, the possibility of collision between the portal crane and logistics vehicles and stacking members in the area exists, in order to avoid potential safety hazards and accidents, movable baffle structures are arranged on two sides generally, and the portal crane can collide with limit switches of the portal crane, so that the portal crane stops moving.
Above-mentioned baffle structure is simple metal plate body generally, and the notch that moves with door machine movable rail assorted is seted up to the bottom, and this kind of structure is when receiving door machine striking, not only receives door machine impact easily to lead to the plate body to damage, and the limit switch of door machine appears damaging because of the impact easily moreover, has certain service problem.
Disclosure of Invention
The invention aims to provide a door machine limiting device which aims to solve the problem that an existing baffle plate structure is poor in damping effect.
In order to achieve the above purpose, the present invention provides the following technical solutions: a door machine stop device, comprising:
the steel channel is characterized in that an iron shoe is fixedly arranged at the bottom of the steel channel, a penetrating rail groove is formed in the bottom of the iron shoe, and penetrating 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 bending notches with obtuse angles and right angles are formed at two ends of the C-shaped plate; the damping columns are multiple in number and are inserted into the middle positions of the channel steel, each damping column comprises a shaft sleeve and a shaft body, an outer spring is sleeved on the outer sides of the shaft sleeve and the shaft body, and a conical rod is fixedly arranged at one end of the shaft body; a door machine main body.
The door machine comprises a door machine body, wherein limit switches are arranged on two sides of the door machine body, a rail is further arranged at the bottom of the door machine body, and the shape of the rail is matched with the notch of the rail 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 of first spread groove is unanimous with the quantity of shock strut.
The notch of the first connecting groove is matched with the shaft sleeve, 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 notch of the second connecting groove and is fixedly provided with a limiting sleeve, and two ends of the C-shaped plate are rotationally connected with limiting rings which are in threaded connection with the limiting rings and the limiting sleeve.
The shaft sleeve is characterized in that a shaft groove is formed in the shaft sleeve, an air groove is further formed in the joint of the conical rod and the shaft body, and the air 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 conical rod is of a frustum type structure, and the notch of the shaft groove is matched with the shaft body and the conical rod.
One end of the shaft groove, which is far away from the shaft body, is also provided with a cavity, and the cavity is used for collecting gas.
The C-shaped plate is made of stainless steel, and a through connecting groove is formed in the middle of the front surface of the iron shoe.
The upper portion of the track is provided with two groups of channel steel, a C-shaped plate and shock absorption columns, the two groups of channel steel, the C-shaped plate and the shock absorption columns are symmetrically arranged on two sides of the door machine main body, and the C-shaped plate is matched with the limit switch in position.
Compared with the prior art, the invention has the beneficial effects that:
through the shock-absorbing column and the assorted auxiliary structure that set up, can provide vapour-pressure type shock-absorbing structure and spring type shock-absorbing structure, the inside extrusion through between axle sleeve and the axis body, form the notch that constantly reduces the efficiency of giving vent to anger, can form the vapour-pressure type shock-absorbing structure of buffering, the spring structure in outside, supplementary reduction impact force, avoid impact speed too fast, lead to shock-absorbing structure can't play fine effect, still set up the C template in one side of shock-absorbing column, contact with limit switch through the C template, planar plate body can guarantee the abundant contact with limit switch, avoid appearing the dislocation, lead to the condition of unable extrusion limit switch, can provide the position restriction to the shock-absorbing column in addition, can also provide simple crooked effect of falling and shake, overall structure possesses stronger shock attenuation effect, conveniently dismantle the replacement, compared current simple structure's plate body structure, more possess 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 diagram showing the connection of a C-shaped plate to a shock strut in accordance with the present invention;
FIG. 4 is a schematic view of the shock strut of the present invention;
FIG. 5 is a cross-sectional view of a shock strut of the present invention;
FIG. 6 is a schematic view of the structure of the shaft body of the present invention;
FIG. 7 is a side view of the sleeve of the present invention;
fig. 8 is a connection diagram of the present invention and a door machine body.
In fig. 1-8: 10. channel steel; 11. an iron boot; 12. a screw hole; 13. a limit sleeve; 14. a limiting ring; 15. a rail groove; 16. a connecting groove; 17. a first connection groove; 18. a second connecting groove; 20. a C-shaped plate; 30. a shock-absorbing column; 31. an outer spring; 32. a shaft sleeve; 321. a shaft groove; 33. a shaft body; 331. an air tank; 332. a taper rod; 40. a door machine main body; 41. a limit switch; 42. a track.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution: a door machine stop device, comprising:
channel steel 10, C-shaped plate 20, shock-absorbing column 30, door machine main body 40.
Wherein, limit switches 41 are arranged on two sides of the door machine main body 40, a rail 42 is also arranged at the bottom of the door machine main body 40, the structure is in the prior art, and the rail 42 is used for moving the door machine main 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 notch of buckling, and C template 20 is when receiving the impact, can be followed and be obtuse angle and two notch department of buckling of right angle are crooked, reduce the impact that receives through the bending, and the condition of direct fracture takes place when avoiding C template 20 to receive the impact too big.
Wherein the number of the shock absorption columns 30 is plural, the shock absorption columns 30 are inserted into the middle position of the channel steel 10, the shock absorption columns 30 comprise a shaft sleeve 32 and a shaft body 33, an outer spring 31 is sleeved on the outer sides of the shaft sleeve 32 and the shaft body 33, a cone rod 332 is welded at one end of the shaft body 33, a shaft groove 321 is arranged in the shaft sleeve 32, an air groove 331 is further arranged at the joint of the cone rod 332 and the shaft body 33, the air grooves 331 are uniformly distributed at the middle position of each side surface of the shaft body 33, the shaft groove 321 is in a hexagonal structure, the shaft body 33 is in a hexagonal cylinder structure, the cone rod 332 is in a frustum structure, the notch of the shaft groove 321 is matched with the shaft body 33 and the cone rod 332, a cavity is further arranged at one end of the shaft groove 321 far away from the shaft body 33, when the C-shaped plate 20 is impacted, the cavity is extruded inwards, so that the shock absorption column 30 arranged on the inner side is impacted, the outer spring 31 is extruded at first, the air groove 331 on the surface of the shaft body 33 is continuously reduced in area on the outer side when the shaft body 33 moves towards the inner side of the shaft groove 321, the speed of extruding and exhausting air in the shaft groove 321 is continuously increased, the cone rod 332 is impacted by the air extruded from the inner side to the outer side, the speed of moving the shaft body 33 inwards can be reduced, after the air groove 331 is completely closed, the air is intensively extruded in the cavity at the tail end of the shaft groove 321, the excessive pressure provides a strong buffering effect, and a slow air acceleration process can be provided for the air groove 331, so that the speed of air pressure rise is avoided.
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 that of the shock absorption columns 30, the notch of the first connecting grooves 17 is matched with the shaft sleeve 32, the outer springs 31 are arranged on the outer sides of the first connecting grooves 17, the outer springs 31 are 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 further welded with a limit sleeve 13 at the notch of the second connecting groove 18, two ends of the C-shaped plate 20 are rotationally connected with limit rings 14, the C-shaped plate 20 is fixed on the outer side of the channel steel 10 in a threaded fixing mode between the limit rings 14 and the limit sleeve 13, a shaft sleeve 32 is cylindrical, threads are formed 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;
wherein, the C-shaped plate 20 is made of stainless steel metal, a through connecting groove 16 is arranged in the middle of the front surface of the iron shoe 11, and 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, so as to form a limit effect;
the upper portion of the track 42 is provided with two groups of channel steels 10, a C-shaped plate 20 and a shock absorption column 30, the two groups of channel steels 10, the C-shaped plate 20 and the shock absorption column 30 are symmetrically arranged on two sides of the door machine main body 40, the positions of the C-shaped plate 20 and the limit switch 41 are matched, and when the C-shaped plate 20 and the limit switch 41 collide, the moving mechanism of the door machine main body 40 can be closed.
Working principle: when the shock absorber is used, the iron shoe 11 is firstly arranged on the track 42, then each shock absorber column 30 is screwed into the first connecting groove 17, then the C-shaped plate 20 is connected with the shock absorber column 30, the notch matched with the shock absorber column 30 is formed in the inner side of the shock absorber column, the shaft body 33 is fixed on the C-shaped plate 20 by screwing the bolt from the other end of the shock absorber column, at the moment, the two ends of the C-shaped plate 20 are fixed with the limiting sleeve 13, the installation is completed, when the shock absorber is impacted, the limiting switch 41 can extrude the C-shaped plate 20, the C-shaped plate 20 can deform, meanwhile, the outer spring 31 is extruded, impact force is transferred through deformation, after deformation, the shaft body 33 can be extruded to the inner side of the shaft sleeve 32, the air groove 331 is continuously reduced, the inner 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 excessively large, the shaft body 33 cannot continuously move inwards, a triple shock absorber structure is arranged, and the shock absorber structure is mutually connected, so that the impact on the channel steel 10 is greatly reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A door machine stop device, characterized by comprising:
the steel channel comprises a channel steel (10), wherein an iron shoe (11) is fixedly arranged at the bottom of the channel steel (10), a penetrating rail groove (15) is formed in the bottom of the iron shoe (11), and penetrating screw holes (12) are formed in the front surface and the rear surface of the iron shoe (11);
the C-shaped plate (20) is arranged on one side of the channel steel (10), and two bending notches with obtuse angles and right angles are formed at two ends of the C-shaped plate (20);
the shock absorber comprises a plurality of shock absorber columns (30), wherein the shock absorber columns (30) are inserted into the middle position of the channel steel (10), each shock absorber column (30) comprises a shaft sleeve (32) and a shaft body (33), an outer spring (31) is sleeved on the outer sides of the shaft sleeve (32) and the shaft bodies (33), a conical rod (332) is fixedly arranged at one end of each shaft body (33), and the shaft bodies (33) are fixed on a C-shaped plate (20);
a door machine main body (40);
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, and the number of the first connecting grooves (17) is consistent with the number of the shock absorption columns (30);
the notch of the first connecting groove (17) is matched with the shaft sleeve (32), the outer spring (31) is arranged on the outer side of the first connecting groove (17), and the outer spring (31) is fixedly connected with the channel steel (10);
a limiting sleeve (13) is fixedly arranged at the notch of the second connecting groove (18) on the outer side of the channel steel (10), limiting rings (14) are rotatably connected to the two ends of the C-shaped plate (20), and the limiting rings (14) are in threaded connection with the limiting sleeve (13);
the inside of the shaft sleeve (32) is provided with a shaft groove (321), the joint of the cone rod (332) and the shaft body (33) is also provided with an air groove (331), and the air grooves (331) are uniformly distributed at 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 conical rod (332) is of a frustum structure, and the notch of the shaft groove (321) is matched with the shaft body (33) and the conical rod (332);
one end of the shaft groove (321) away from the shaft body (33) is also provided with a cavity, and the cavity is used for collecting gas.
2. A door operator stop as defined in claim 1, further comprising:
limit switches (41) are arranged on two sides of the door machine main body (40), a track (42) is further arranged at the bottom of the door machine main body (40), and the shape of the track (42) is matched with the notch of the rail groove (15).
3. A door stopper according to claim 1, comprising:
the C-shaped plate (20) is made of stainless steel, and a through connecting groove (16) is formed in the middle of the front surface of the iron shoe (11).
4. A door stopper according to claim 2, comprising:
the upper portion of track (42) is provided with two sets of channel-section steel (10), C template (20) and shock strut (30), two sets of channel-section steel (10), C template (20) and shock strut (30) are the symmetry and set up in the both sides of door machine main part (40), the position phase-match of C template (20) and limit switch (41).
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 CN113800399A (en) | 2021-12-17 |
| CN113800399B true 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2303619C (en) * | 2000-03-31 | 2009-12-08 | Martin Faucher | Support structures |
-
2021
- 2021-08-18 CN CN202110949546.1A patent/CN113800399B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| CN113800399A (en) | 2021-12-17 |
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