CN112796282A - Self-resetting anti-collision device suitable for column type pier and construction method thereof - Google Patents
Self-resetting anti-collision device suitable for column type pier and construction method thereof Download PDFInfo
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- CN112796282A CN112796282A CN202110140879.XA CN202110140879A CN112796282A CN 112796282 A CN112796282 A CN 112796282A CN 202110140879 A CN202110140879 A CN 202110140879A CN 112796282 A CN112796282 A CN 112796282A
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- 238000010276 construction Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 296
- 239000010959 steel Substances 0.000 claims abstract description 296
- 239000011381 foam concrete Substances 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims description 39
- 239000011150 reinforced concrete Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 9
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 238000005381 potential energy Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- 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
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- 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
- F16F15/06—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 with metal springs
- F16F15/067—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 with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of column pier collision avoidance, and particularly discloses a self-resetting collision avoidance device suitable for a column pier and a construction method thereof. When a ship impacts the anti-collision steel block, the kinetic energy of the ship is converted into the elastic potential energy inside the device and the kinetic energy of the steel ball, and meanwhile, the foam concrete inside the device can absorb the residual impact force and enable the impacting ship to obtain the kinetic energy far away from the device, so that the damage of the huge impact force generated by ship impact on a bridge pier is buffered, and the loss of waterway traffic transportation accidents on social economy and casualties is reduced.
Description
Technical Field
The invention relates to the technical field of pillar pier collision avoidance, in particular to a self-resetting collision avoidance device suitable for a pillar pier and a construction method thereof.
Background
In recent years, with the continuous improvement of comprehensive national power and the high-speed development of national economy, the transportation industry of China is developed more and more. In the transportation industry of China, waterway transportation is one of the main transportation modes of China all the time, and becomes an important component of the transportation industry of China. However, the transportation of water and land brings convenience and brings a series of safety problems about the impact of ships on bridges, and due to the continuous change of natural environment, such as the change of water level, the change of water flow speed, misoperation of ship drivers and other reasons, disastrous accidents caused by the impact of ships on bridges frequently occur.
When a ship impacts a bridge, the ship is damaged to a certain extent, bridge piers are damaged greatly, even more serious accidents such as bridge breakage and the like are caused, traffic line paralysis is caused, and huge losses of social economy and personnel safety are caused.
However, since most bridge piers are cylindrical, how to invent a self-resetting anti-collision device suitable for column piers can reduce the damage probability of the bridge piers, reduce the loss of running ships and better guarantee the life safety of personnel is a problem which needs to be solved urgently by technical personnel in the field.
Based on the consideration, the invention designs the self-resetting anti-collision device suitable for the column pier.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-resetting anti-collision device suitable for a column pier and a construction method thereof, which buffer the collision of a ship on the bridge pier and can protect the bridge pier under a large impact force, so that the bridge pier is prevented from being broken, and the ship can obtain certain kinetic energy to be far away from the bridge pier.
In order to realize the purpose of the invention, the invention adopts the technical scheme that:
the invention discloses a self-resetting anti-collision device suitable for a column pier, which comprises a device body arranged on a bearing platform, and is characterized in that: the device body comprises an anti-collision steel block, a steel stop block, an oblique steel spring, an inner steel block substrate, an outer steel block substrate, an annular outer steel plate, an annular middle steel plate, an annular inner steel plate, an annular steel plate, a steel ball, foam concrete and a reinforced concrete column,
the annular inner steel plate is of an annular structure, and the inner wall of the annular inner steel plate is connected with the outer wall of the bridge pier through a plurality of reinforced concrete columns; the annular middle steel plate is of an annular structure, and the inner wall of the annular middle steel plate is connected with the outer wall of the annular inner steel plate through foam concrete pouring;
the inner steel block substrate is of an annular structure, the inner wall of the inner steel block substrate is fixedly connected with the outer wall of the annular middle steel plate, and the inner wall of the outer steel block substrate is welded with the outer wall of the inner steel block substrate;
a plurality of steel balls are placed on the top of the inner steel block substrate; the annular steel plate is placed on the top of the outer steel block substrate in an annular structure, the outer wall of the annular steel plate is connected with the inner wall of the annular outer steel plate through a plurality of first steel springs, the outer wall of the annular outer steel plate is connected with the inner wall of the anti-collision steel plate through a plurality of second steel springs, and the inner wall of the annular outer steel plate is connected with the steel ball through an oblique steel spring;
the anti-collision steel plates are of semicircular annular structures, and a gap for the steel check block to pass through is formed between the end parts of the two anti-collision steel plates; the inner end of the steel stopper is connected to the annular outer steel plate.
The steel stop block is of a fishtail structure, the width of the outer end of the steel stop block is larger than the gap between the two anti-collision steel plates, and the width of the inner end of the steel stop block is smaller than the gap between the two anti-collision steel plates; and a third steel spring connected with the inner wall of the outer end of the steel stop block and the anti-collision steel plate is arranged between the inner wall of the outer end of the steel stop block and the anti-collision steel plate.
The annular outer steel plate, the annular middle steel plate and the annular inner steel plate are coaxial and have annular structures with gradually reduced outer diameters, and the heights of the annular outer steel plate, the annular middle steel plate and the annular inner steel plate are equal; the height of the annular steel plate is half of that of the annular outer steel plate.
The oblique steel spring is obliquely arranged, and the axis of the oblique steel spring passes through the center of the steel ball.
And a plurality of pile foundations fixed at the bottom of the bearing platform are arranged at the bottom of the bearing platform.
A construction method of a self-resetting anti-collision device suitable for a column pier comprises the following steps:
the method comprises the following steps: forming a reinforced concrete column by using foam concrete and reinforcing steel bars to connect and fix the pier and the annular inner steel plate;
step two: fixedly connecting an annular middle steel plate and an annular inner steel plate by pouring foam concrete, sequentially welding an inner steel block substrate and an outer steel block substrate on the outer side of the annular middle steel plate, placing four steel balls on the inner steel block substrate, placing the annular steel plate on the outer steel block substrate, and respectively welding two ends of an oblique steel spring on the steel balls and the annular steel plate so as to connect the two;
step three: the two ends of the first steel springs are respectively welded on the annular steel plate and the annular outer steel plate to connect the two steel springs; then, two ends of a plurality of second steel springs are respectively welded on the annular outer steel plate and the anti-collision steel block to connect the annular outer steel plate and the anti-collision steel block;
step four: and the two steel stop blocks are welded on the outer side of the annular outer steel plate and are connected with the outer side of the anti-collision steel block by welding a third steel spring.
The invention has the beneficial effects that:
1. the invention can better buffer the huge impact force generated when a ship impacts the bridge pier during waterway transportation, protect the stability and safety of the bridge pier, and simultaneously lead the impacting ship to obtain the self-resetting kinetic energy so as to be far away from the bridge pier, thereby effectively reducing the social, economic and casualty losses generated after the traffic accident that the ship impacts the bridge pier during waterway transportation occurs.
2. The foam concrete provided by the invention has low elasticity and shock absorption: the porosity of the foam concrete gives it a low modulus of elasticity, which gives it a good absorption and dispersion of impact loads. And a large number of steel springs and steel balls in the invention can better buffer huge energy generated by ship impact. Therefore, the foam concrete, the steel spring and the steel ball supplement each other, and the disaster cost caused by the huge impact force generated by ship impact on the bridge pier is reduced.
3. All the structures of the invention are made of durable materials, and the service life is longer.
Drawings
FIG. 1 is an overall three-dimensional schematic of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a three-dimensional schematic view of a structural separation;
FIG. 5 is a cross-sectional view of a reinforced concrete column;
fig. 6 is a schematic view of the device applied to a bridge pier.
In the figure, 1, an anti-collision steel block, 2, a second steel spring, 3, an annular outer steel plate, 4, a first steel spring, 5, an annular steel plate, 6, an outer steel block base, 7, an inner steel block base, 8, a steel ball, 9, an oblique steel spring, 10, an annular middle steel plate, 11, foam concrete, 12, an annular inner steel plate, 13, a reinforced concrete column, 14, a pier, 15, a steel stop, 16, a third steel spring, 17, foam concrete, 18, a steel bar, 19, a device body, 20, a beam body, 21, a support, 22, a bridge stop block body, 23, a bearing platform, 24 and a pile foundation.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
see fig. 1-6.
The invention discloses a self-resetting anti-collision device suitable for a column pier, which comprises an anti-collision steel block 1, an annular outer steel plate 3, an annular steel plate 5, an annular middle steel plate 10, an annular inner steel plate 12, a second steel spring 2, a first steel spring 4, an oblique steel spring 9, an outer steel block substrate 6, an inner steel block substrate 7, steel balls 8, foam concrete 11 and 17, a reinforced concrete column 13 and a steel stop block 15, wherein the outer steel plate 3, the annular middle steel plate 10, the annular inner steel plate 12, the second steel spring 2, the first steel spring 4, the oblique steel spring 9, the outer.
As shown in fig. 3, the outer sides of two anti-collision steel blocks 1 are connected with two steel stoppers 15 through third steel springs 16 respectively, the inner sides of the anti-collision steel blocks are connected with an annular outer steel plate 3 through a plurality of second steel springs 2, the inner sides of the annular outer steel plate 3 are connected with an annular steel plate 5 through a plurality of first steel springs 4, and the annular steel plate is connected with four steel balls 8 through oblique steel springs 9. When the device is naturally placed, the steel ball is positioned on the inner steel block substrate 7, and the oblique spring 9 is suspended above the outer steel block substrate 6. The inner side of the inner steel block substrate 7 is sequentially provided with an annular middle steel plate 10, foam concrete 11 and an annular inner steel plate 12. The bridge pier 14 and the annular inner steel plate 12 are connected by a reinforced concrete column 13 composed of foam concrete 17 and reinforcing steel bars 18.
As shown in fig. 2, the annular outer steel plate 3, the annular steel plate 5, the annular middle steel plate 10 and the annular inner steel plate 12 are coaxial and have an annular structure with an outer diameter gradually decreasing. Wherein the annular outer steel plate 3, the annular middle steel plate 10 and the annular inner steel plate 12 are annular steel plates with equal height, and the height of the annular steel plate 5 is half of that of the annular outer steel plate 3, the annular middle steel plate 10 and the annular inner steel plate 12.
As shown in fig. 2, when the device is naturally placed, the annular steel plate 5 is placed on the outer steel block substrate 6, the oblique steel spring 9 is suspended above the outer steel block substrate 6, and the steel ball 8 is placed on the inner steel block substrate 7.
The construction method comprises the following steps: the pier 14 and the annular inner steel plate 12 are fixedly connected by a reinforced concrete column 13 formed by foam concrete 17 and reinforcing steel bars 18, and then the annular middle steel plate 10 and the annular inner steel plate 12 are fixedly connected by pouring foam concrete 11. And then welding an inner steel block substrate 7 and an outer steel block substrate 6 in sequence on the outer side of the annular middle steel plate 10, placing four steel balls 8 on the inner steel block substrate 7, placing the annular steel plate 5 on the outer steel block substrate 6, and respectively welding two ends of a slant steel spring 9 on the steel balls 8 and the annular steel plate 5 so as to connect the two, ensuring that the direction of the slant steel spring 9 deviates at least 45 degrees relative to the axis formed by the circle center of the steel ball 8 to the nearest point of the annular steel plate 5, and enabling the slant steel spring 9 to be compressed so as to facilitate the steel ball 8 to rotate anticlockwise on the inner steel block substrate 7. Then, the two ends of the first steel springs 4 are respectively welded on the annular steel plate 5 and the annular outer steel plate 3 to connect the two. Then the two ends of a plurality of second steel springs 2 are respectively welded on the annular outer steel plate 3 and the anti-collision steel block 1 to be connected. And then the two fishtail-shaped steel stoppers 15 are welded on the outer side of the annular outer steel plate 3, and are connected with the outer side of the anti-collision steel block 1 by welding the third steel spring 16, and the fishtail-shaped steel stoppers 15 and the third steel spring 16 can prevent the anti-collision steel block 1 from moving outwards too much.
The working principle of the invention is as follows: when a ship impacts the anti-collision steel block 1, the anti-collision steel block 1 moves towards the inner side, the second steel spring 2 contracts, and the third steel spring 16 stretches, so that the annular outer steel plate 3 is driven to move, the first steel spring 4 contracts, and therefore the side, subjected to impact force, of the annular steel plate 5 is driven to move inwards on the outer steel block substrate 6 and the inclined steel spring 9 contracts, so that the steel ball 8 rotates anticlockwise on the inner steel block substrate 7, and kinetic energy brought by vehicle impact is basically converted into elastic potential energy of the second steel spring 2, 4, 16, the inclined steel spring 9 and kinetic energy of the steel ball 8.
Meanwhile, since the foam concrete 11 has low elastic shock absorption, the impact force generated when the steel balls 8 strike the annular middle steel plate 10 during movement can be absorbed by the foam concrete 11.
Afterwards, the second steel springs 2 and 4 are restored to the original state, and finally the anti-collision steel block 1 moves outwards, so that kinetic energy is brought to a ship impacting process, the ship moves towards the direction far away from the device, and the self-resetting effect is achieved.
Meanwhile, the fishtail-shaped steel stop block 15 and the third steel spring 16 can prevent the anti-collision steel block 1 from moving too much outwards.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (6)
1. The utility model provides a from crashproof device that restores to throne suitable for column pier, is including setting up device body (19) on cushion cap (23), its characterized in that: the device body (19) comprises an anti-collision steel block (1), a steel stop block (15), an oblique steel spring (9), an inner steel block substrate (7), an outer steel block substrate (6), an annular outer steel plate (3), an annular middle steel plate (10), an annular inner steel plate (12), an annular steel plate (5), steel balls (8), foam concrete (11) and a reinforced concrete column (13),
the annular inner steel plate (12) is of an annular structure, and the inner wall of the annular inner steel plate is connected with the outer wall of the pier (14) through a plurality of reinforced concrete columns (13); the annular middle steel plate (10) is of an annular structure, and the inner wall of the annular middle steel plate is connected with the outer wall of the annular inner steel plate (12) through foam concrete (11) in a pouring mode;
the inner steel block substrate (7) is of an annular structure, the inner wall of the inner steel block substrate is fixedly connected with the outer wall of the annular middle steel plate (10), and the inner wall of the outer steel block substrate (6) is welded with the outer wall of the inner steel block substrate (7);
a plurality of steel balls (8) are placed on the top of the inner steel block substrate (7); the annular steel plate (5) is placed on the top of the outer steel block substrate (6) in an annular structure, the outer wall of the annular steel plate is connected with the inner wall of the annular outer steel plate (3) through a plurality of first steel springs (4), the outer wall of the annular outer steel plate (3) is connected with the inner wall of the anti-collision steel plate (1) through a plurality of second steel springs (2), and the inner wall of the annular outer steel plate (3) is connected with the steel ball (8) through an oblique steel spring (9);
the anti-collision steel plates (1) are of semicircular annular structures, and a gap for the steel stop block (15) to penetrate through is formed between the end parts of the two anti-collision steel plates (1); the inner end of the steel stop block (15) is connected to the annular outer steel plate (3).
2. The self-resetting anti-collision device suitable for the pier stud of claim 1, wherein: the steel stop block (15) is of a fishtail structure, the width of the outer end of the steel stop block is larger than the gap between the two anti-collision steel plates (1), and the width of the inner end of the steel stop block is smaller than the gap between the two anti-collision steel plates (1); and a third steel spring (16) connected with the inner wall of the outer end of the steel stop block (15) and the anti-collision steel plate (1) is arranged between the inner wall of the outer end of the steel stop block and the anti-collision steel plate.
3. The self-resetting anti-collision device suitable for the pier stud of claim 2, wherein: the annular outer steel plate (3), the annular steel plate (5), the annular middle steel plate (10) and the annular inner steel plate (12) are coaxial and have annular structures with gradually reduced outer diameters, and the annular outer steel plate (3), the annular middle steel plate (10) and the annular inner steel plate (12) are equal in height; the height of the annular steel plate (5) is half of that of the annular outer steel plate (3).
4. The self-resetting anti-collision device suitable for the pier stud of claim 1, wherein: the oblique steel spring (9) is obliquely arranged, and the axis of the oblique steel spring passes through the center of the steel ball (8).
5. The self-resetting anti-collision device suitable for the pier stud of claim 1, wherein: the bottom of the bearing platform (23) is provided with a plurality of pile foundations (24) fixed at the water bottom.
6. A construction method of a self-resetting anti-collision device suitable for a column pier is characterized by comprising the following steps:
the method comprises the following steps: a reinforced concrete column (13) is formed by foam concrete (17) and reinforcing steel bars (18) to connect and fix the pier (14) and the annular inner steel plate (12);
step two: fixedly connecting an annular middle steel plate (10) with an annular inner steel plate (12) by pouring foam concrete (11), sequentially welding an inner steel block substrate (7) and an outer steel block substrate (6) on the outer side of the annular middle steel plate (10), placing four steel balls (8) on the inner steel block substrate (7), placing an annular steel plate (5) on the outer steel block substrate (6), and respectively welding two ends of an oblique steel spring (9) on the steel balls (8) and the annular steel plate (5) so as to connect the two;
step three: the two ends of the first steel springs (4) are respectively welded on the annular steel plate (5) and the annular outer steel plate (3) to connect the two; then, two ends of a plurality of second steel springs (2) are respectively welded on the annular outer steel plate (3) and the anti-collision steel block (1) to connect the two;
step four: and two steel stoppers (15) are welded on the outer side of the annular outer steel plate (3) and are connected with the outer side of the anti-collision steel block (1) by welding a third steel spring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110140879.XA CN112796282B (en) | 2021-02-02 | Self-resetting anti-collision device suitable for column pier and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110140879.XA CN112796282B (en) | 2021-02-02 | Self-resetting anti-collision device suitable for column pier and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112796282A true CN112796282A (en) | 2021-05-14 |
| CN112796282B CN112796282B (en) | 2024-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647347A (en) * | 2022-12-28 | 2023-01-31 | 河北泰禾高温流体科技股份有限公司 | High-safety anti-collision sliding gate mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647347A (en) * | 2022-12-28 | 2023-01-31 | 河北泰禾高温流体科技股份有限公司 | High-safety anti-collision sliding gate mechanism |
| CN115647347B (en) * | 2022-12-28 | 2023-03-03 | 河北泰禾高温流体科技股份有限公司 | High-safety anti-collision sliding gate mechanism |
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