CN109629484B - Road post with buffer function - Google Patents
Road post with buffer function Download PDFInfo
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- CN109629484B CN109629484B CN201811512713.0A CN201811512713A CN109629484B CN 109629484 B CN109629484 B CN 109629484B CN 201811512713 A CN201811512713 A CN 201811512713A CN 109629484 B CN109629484 B CN 109629484B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/02—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions free-standing; portable, e.g. for guarding open manholes ; Portable signs or signals specially adapted for fitting to portable barriers
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a road post with a buffering function, which comprises a base, a buffering mechanism and an L-shaped upright post, wherein the L-shaped upright post is arranged on the base; an accommodating cavity and an accommodating groove communicated with the accommodating cavity are arranged in the base; the buffer mechanism comprises a cylinder, a push plate and elastic pieces, wherein the cylinder is partially positioned in the accommodating groove, the push plate is positioned in the accommodating cavity and is rigidly connected with the cylinder, the elastic pieces are positioned on two sides of the push plate, the cylinder comprises a first end and a second end, the first end extends into the accommodating cavity, the second end is opposite to the first end, and the second end is fixedly connected with one end of the upright post; the push plate is provided with a sliding groove, the sliding groove is formed in two opposite surfaces of the push plate, one end of the elastic piece is movably clamped with the push plate through a sliding block, and the other end of the elastic piece is connected with the inner side wall of the accommodating cavity. The road pillar with the buffering function rotates and retreats when colliding with a vehicle, so that damage caused by a strong action of the road pillar with the vehicle is avoided.
Description
Technical Field
The invention relates to the field of highway facilities, in particular to a road post with a buffering function.
Background
The guidepost is a common roadblock, and is mainly used for isolating or sealing off a specific road section including a passage or an entrance and an exit to prevent vehicles from passing through. The existing road post is generally hard without a buffer mechanism, and when the road post collides with a vehicle coming and going, the road post and the vehicle can be damaged to different degrees even if the collision is slight.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a road post with a buffering function, which can rotate and avoid retreating when colliding with a vehicle, so as to avoid damage caused by a strong action with the vehicle.
In order to solve the technical problems, the invention adopts the following technical scheme: the road pillar with the buffering function comprises a base, a buffering mechanism and a stand column. The base is internally provided with an accommodating cavity and an accommodating groove, and the accommodating groove is communicated with the accommodating cavity; the buffer mechanism comprises a cylinder, a push plate and an elastic piece, at least part of the cylinder is accommodated in the accommodating groove, the first end of the cylinder extends into the accommodating cavity, the push plate is positioned in the accommodating cavity, one end of the push plate is rigidly connected with the cylinder, two opposite surfaces of the push plate are respectively provided with a sliding groove, a sliding block is movably clamped in the sliding groove, the elastic piece is positioned on two sides of the push plate, one end of the elastic piece is connected with the sliding block, and the other end of the elastic piece is connected with the inner side wall of the accommodating cavity; the stand is the L type, the stand sets up just outside the base the one end of stand with the second end fixed connection of cylinder. The base is further internally provided with an annular groove surrounding the accommodating groove, a blocking block is fixedly arranged in the annular groove, a supporting block is fixedly arranged on the outer surface of the cylinder, when the cylinder is accommodated in the accommodating groove, the supporting block is accommodated in the annular groove, the supporting block rotates along with the cylinder and moves in the annular groove, and when the supporting block supports against the blocking block, the cylinder is fixed.
The road pillar with the buffering function comprises the base, the buffering mechanism mainly arranged in the base and the L-shaped upright post arranged outside the base, wherein one end of the upright post is fixedly connected with the buffering mechanism, when the road pillar with the buffering function is used, the base is buried underground, and the upright post is exposed on the ground, so that when the L-shaped upright post is collided by a vehicle and the like, a generating moment can be generated, the elastic piece is deformed through the matching of the cylinder of the buffering mechanism and the push plate, and the upright post rotates and retreats by taking the cylinder as a rotating shaft, so that the upright post and a collider are prevented from being damaged due to the strong action with the vehicle and the like; meanwhile, the road pillar with the buffering function comprises an annular groove, a blocking block and a supporting block, after the cylinder rotates for a certain angle, the supporting block supports the blocking block to enable the cylinder to stop rotating, and then the stand column is fixed, so that a vehicle and the like are blocked.
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 are briefly introduced below, and it is obvious that the drawings in the following description are 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 top view of a road pillar with a buffering function according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 2;
FIG. 4 is a schematic view of the cylinder of FIG. 3 after rotation;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 6 is a sectional view taken along line D-D of FIG. 4;
fig. 7 is a front view of a push plate of a road post with a buffering function provided by the present invention;
FIG. 8 is a sectional view taken along line F-F of FIG. 7;
fig. 9 is a front view of a slide block of a road post with a buffering function provided by the invention.
Description of reference numerals:
10: a base; 10 a: a first portion; 10 b: a second portion; 101: an accommodating cavity; 102: a containing groove; 103: a ring groove; 1031: a blocking block; 20: a buffer mechanism; 201: a cylinder; 2011: a holding block; 202: pushing the plate; 2021: a chute; 203: an elastic member; 2031: a slider; 2032: positioning blocks; 30: a column; 301: a linker; 302: and a blocking body.
Detailed Description
In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly and completely apparent, the technical solutions in the embodiments of the present invention will be 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 9, the roadbed column with a buffering function comprises a base 10, a buffering mechanism 20 and a column 30. An accommodating cavity 101 and an accommodating groove 102 are formed in the base 10, and the accommodating groove 102 is communicated with the accommodating cavity 101; the buffer mechanism 20 comprises a cylinder 201, a push plate 202 and an elastic piece 203, wherein at least part of the cylinder 201 is accommodated in the accommodating groove 102, a first end of the cylinder 201 extends into the accommodating cavity 101, the push plate 202 is located in the accommodating cavity 101, one end of the push plate 202 is rigidly connected with the cylinder 201, two opposite surfaces of the push plate 202 are respectively provided with a sliding groove 2021, a sliding block 2031 is movably clamped in the sliding groove 2021, the elastic piece 203 is located on two sides of the push plate 202, one end of the elastic piece 203 is connected with the sliding block 2031, and the other end of the elastic piece 203 is connected with the inner side wall of the accommodating cavity 101; the upright column 30 is L-shaped, and the upright column 30 is disposed outside the base 10 and one end of the upright column 30 is fixedly connected to the second end of the cylinder 201. The base 10 is further provided with a ring groove 103 surrounding the containing groove 102, the ring groove 103 is fixedly provided with a blocking block 1031, the outer surface of the cylinder 201 is fixedly provided with a propping block 2011, when the cylinder 201 is contained in the containing groove 102, the propping block 2011 is contained in the ring groove 103, the propping block 2011 rotates along with the cylinder 201 and moves in the ring groove 103, and when the propping block 2011 props against the blocking block 1031, the cylinder 201 is fixed.
The road pillar with the buffering function comprises the base 10, the buffering mechanism 20 mainly arranged in the base 10 and the L-shaped upright post 30 arranged outside the base 10, wherein one end of the upright post 30 is fixedly connected with the buffering mechanism 20, when the road pillar with the buffering function is used, the base 10 is buried underground, and the upright post 30 is exposed on the ground, so that when the L-shaped upright post 30 is collided by a collision body, a moment can be generated, the elastic piece 203 is deformed through the matching of the cylinder 201 of the buffering mechanism 20 and the push plate 202, and then the upright post 30 rotates and retreats by taking the cylinder 201 as a rotating shaft, so that the upright post 30 and the collision body are prevented from being damaged due to a strong action with the collision body; meanwhile, the road pillar with the buffering function comprises the ring groove 103, the blocking block 1031 and the abutting block 2011, and after the cylinder rotates for a certain angle, the abutting block 2011 abuts against the blocking block 1031 to stop the rotation of the cylinder 201, so that the pillar 30 is fixed, and a vehicle and the like are blocked; in addition, after the collision body leaves, the pillar 30 is restored by the elastic member 203.
Specifically, the base 10 serves as a support structure for a road pillar having a buffering function, and the base 10 is a solid structure, so that the pillar 20 is stabilized. The base 10 may be circular or polygonal in cross-section. In this embodiment, the base 10 is preferably rectangular in cross-section. When the post with the buffering function is installed, the base 10 is buried underground, and the upper surface of the base 10 is flush with the ground. The base 10 may be formed by casting reinforced concrete or by manufacturing steel, but is not limited thereto.
Further, the base 10 is provided to include two separate portions, a first portion 10a and a second portion 10b, respectively. Preferably, in this embodiment, the first portion 10a and the second portion 10b are symmetrically disposed. By providing the base 10 to comprise two separate parts, it is useful to fit the damping mechanism 20 within the base 10.
Specifically, the accommodating cavity 101 is a cavity formed in the base 10 and is used for accommodating the push plate 202 and the elastic member 203. In this embodiment, half of the receiving cavity 101 is located in the first portion 10a and the other half is located in the second portion 10 b. Preferably, in this embodiment, the cross section of the accommodating cavity 101 is rectangular. In other embodiments, the cross section of the accommodating cavity 101 may also be configured as a circle, a regular hexagon, or the like.
Specifically, the receiving groove 102 is a groove formed on the base 10, and is used for receiving the cylinder 201. An opening at one end of the accommodating groove 102 is located on the upper surface of the base 10, and the other end of the accommodating groove 102 extends into the accommodating cavity 101. Similarly, in the present embodiment, half of the receiving groove 102 is located in the first portion 10a and the other half is located in the second portion 10 b. Preferably, in this embodiment, the receiving groove 102 is a cylinder shape adapted to the cylinder 201, that is, the cross section of the receiving groove 102 is circular, so as to ensure the stability of the cylinder 201 and prevent the cylinder 201 from swinging in the receiving groove 102. In other embodiments, the receiving cavity 102 may also be configured in a prism shape, for example, the cross section of the receiving cavity 102 is square, rectangular, or regular hexagon.
Further, in this embodiment, the accommodating groove 102 is disposed through the accommodating cavity 101. In detail, the receiving groove 102 passes through the center of the receiving groove 102. In this way, when the cylinder 201 is disposed in the receiving groove 102, the cylinder 201 may also be disposed to penetrate the receiving cavity 101, so as to enhance the stability of the cylinder 201.
Further, in the present embodiment, the bottom of the accommodating groove 102 is an inwardly concave spherical arc. In this way, the bottom of the cylinder 201 may also be set to be in a spherical arc shape matched with the bottom of the accommodating groove 102, so as to increase the stressed area of the bottom of the cylinder 201 and reduce the wear of the cylinder 201. In other embodiments, the bottom of the receiving groove 102 may also be a cone, and correspondingly, the bottom of the cylinder 201 is a cone matched with the bottom of the receiving groove 102.
Specifically, in this embodiment, a portion of the cylinder 201 is located in the accommodating groove 102, one end of the cylinder 201 extends into the accommodating cavity 101, and another portion of the cylinder 201 is located outside the base 10. In this embodiment, the accommodating groove 102 penetrates through the accommodating cavity 101, the cylinder 201 is also configured to penetrate through the accommodating cavity 101, the bottom of the accommodating groove 102 is in a spherical arc shape, and then the cylinder 201 is also configured in a spherical arc shape matched with the bottom of the accommodating groove 102. In addition, in the present embodiment, the cylinder 201 has a solid structure, and in other embodiments, the cylinder 201 may have a hollow structure, which is not limited herein.
Specifically, the push plate 202 is vertically disposed in the accommodating cavity 101, and one end of the push plate 202 is rigidly connected to the cylinder 201, and preferably, in this embodiment, the push plate 202 is rigidly connected to the cylinder 201 by welding. In some embodiments, the push plate 202 can also be formed as an integral part. In other embodiments, the push plate 202 can be rigidly connected to the cylinder 201 by a detachable connection, which is not limited herein.
Further, in this embodiment, the number of the push plates 202 is two, and the two push plates 202 are disposed oppositely. In some embodiments, the number of push plates 202 is one; in other embodiments, the number of the push plates 202 can also be three or more, and is not limited herein.
Specifically, the elastic member 203 is disposed on two sides of the push plate 202, specifically, between the push plate 202 and the inner sidewall of the accommodating cavity 101. In detail, one end of the elastic element 203 is connected to the inner sidewall of the accommodating cavity 101, specifically, one end of the elastic element 203 is connected to a positioning block 2032 fixedly disposed on the inner sidewall of the accommodating cavity 101. Preferably, in this embodiment, the elastic member 203 is horizontally disposed in the accommodating cavity 101, and in a natural state, the elastic member 203 is perpendicular to the push plate 202, where the natural state refers to a state where the upright 30 is not impacted.
Further, the other end of the elastic member 203 is connected to the slider 2031, specifically, the elastic member 203 is connected to one end of the slider 2031, and the other end of the slider 2031 is movably clamped in the sliding groove 2021. According to the invention, by arranging the sliding groove 2021 and the sliding block 2031, the sliding block 2031 is connected with the elastic part 203, and in the rotating process of the cylinder 201, the sliding block 2031 moves in the sliding groove 2021, so that the elastic part 203 is prevented from being stretched or compressed arbitrarily, and the stability of the performance of the elastic part 203 is ensured. In detail, the sliding groove 2021 is formed by inward recessing of the surface of the push plate 202. Preferably, in this embodiment, the cross section of the sliding groove 2021 is an inverted T shape, that is, the opening of the sliding groove 2021 is small in size and the bottom is large in size. In other embodiments, the cross section of the sliding groove 2021 is in a shape of an inverted trapezoid, an arc, or the like. The sliding groove 2021 is horizontally disposed, and the sliding groove 2021 has an opening at one end of the pushing plate 202 and is sealed at the other end, so that the sliding block 2031 and the sliding groove 2021 can be conveniently combined together through the opening, and one end of the sealed sliding groove can effectively prevent the sliding block 2031 from sliding out of the sliding groove 2021 after assembly, wherein one end of the pushing plate 202 is the end of the pushing plate 202 connected to the cylinder 201, and the other end is the end away from the cylinder 201. Meanwhile, the other end of the sliding block 2031 movably clamped in the sliding groove 2021 is configured to be matched with the sliding groove 2021. In this embodiment, the other end of the slider 2031 is T-shaped.
Further, in this embodiment, the elastic member 203 is a spring. Preferably, the elastic member 203 is a conical spring, so that the elastic member 203 has a first end with a larger size and a second end with a smaller size, wherein the first end is connected with the positioning block 2032, and the second end is connected with the sliding block 2031. In this embodiment, the elastic member 203 is configured as a conical spring, so that the stability of the elastic member 203 during the rotation of the cylinder 201 is enhanced.
Still further, in this embodiment, the number of the elastic members 203 is multiple, specifically 8, and the positions of the elastic members 203 correspond to each other.
Specifically, the upright post 30 includes a connecting body 301 and a blocking body 302, one end of the connecting body 301 is fixedly connected to the other end of the cylinder 201, the other end of the connecting body 301 is fixedly connected to one end of the blocking body 302, and the connecting body 301 and the blocking body 302 are perpendicular to each other, so that the upright post 30 is L-shaped. In this embodiment, the connecting body 301 and the blocking body 302 are fixedly connected by welding; in other embodiments, the connecting body 301 and the blocking body 302 can be integrally formed.
Further, in this embodiment, the connecting body 301 is configured as a solid structure, which facilitates to enhance the strength of the connecting body 301. Preferably, in this embodiment, the blocking body 302 is a hollow structure, and by setting the blocking body 302 as a hollow structure, not only the material can be saved and the manufacturing cost of the road pillar can be reduced, but also the weight of the upright post 30 can be reduced to facilitate transportation and handling, and at the same time, the weight reduction of the upright post 30 can also reduce the stress of the base 10, prevent the base 10 from being crushed, and prolong the service life of the road pillar. In other embodiments, the connecting body 301 may be configured as a hollow structure, or the blocking body 302 may be configured as a solid structure, which is not limited herein.
Further, the shape of the baffle 302 is a vertical cylinder. Because the blocking body 302 is a part exposed to the ground, the cylindrical shape can effectively avoid the existence of sharp parts such as corners, thereby reducing the damage or damage of people or objects when impacting on the upright 30. In addition to providing the blocking body 302 as a vertical cylinder, in other embodiments, the blocking body 302 may be provided with other shapes, such as Y-shape, S-shape, etc., so that the road pillar can also serve as a decoration.
In addition, in this embodiment, the base 10 further includes the ring groove 103, the ring groove 103 is disposed in the base 10, and the ring groove 103 is disposed around the accommodating groove 102 and is communicated with the accommodating groove 102. Preferably, in this embodiment, the ring groove 103 is formed by inwardly recessing a sidewall of the receiving groove 102. The number of the ring grooves 103 in the base 10 may be one or more. In this embodiment, the number of the ring grooves 103 is one, and the ring grooves 103 are disposed on one side of the accommodating cavity 101, specifically, on one side of the accommodating cavity 101 close to the bottom end of the accommodating groove 102. In some embodiments, the ring groove 103 may also be disposed on a side of the receiving cavity 101 away from the bottom end of the receiving groove 102; in other embodiments, when the number of the ring grooves 103 is multiple, the ring grooves 103 may be respectively located on two sides of the accommodating cavity 101, or both the ring grooves 103 may be located on the same side of the accommodating cavity 101, which is not limited herein.
Further, the blocking piece 1031 is further disposed in the ring groove 103, and the blocking piece 1031 is fixedly connected with the ring groove 103. In this embodiment, the blocking block 1031 is integrally formed with the base 10, specifically, the sidewall of the ring groove 103 protrudes outward. In other embodiments, the blocking piece 1031 may be fixedly disposed in the ring groove 103 by bonding, welding, screwing, etc.
Furthermore, the abutting block 2011 is fixedly arranged on the outer surface of the cylinder 201, when the cylinder 201 is accommodated in the accommodating groove 102, the abutting block 2011 is accommodated in the ring groove 103, the abutting block 2011 moves in the ring groove 103 along with the rotation of the cylinder 201, meanwhile, when the abutting block 2011 abuts against the blocking block 1031, the cylinder 201 is blocked to stop rotating, and the upright post 30 also stops rotating, so that when an out-of-control vehicle collides with the upright post 30, the upright post 30 is fixed after rotating for a certain angle through the buffer mechanism 20, so that the vehicle is blocked, and the damage to the buffer mechanism 20 caused by the overlarge rotation angle of the upright post 30 is avoided.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A road post with a buffering function is characterized by comprising: the buffer mechanism comprises a base, a buffer mechanism and an L-shaped upright post; an accommodating cavity and an accommodating groove communicated with the accommodating cavity are arranged in the base; the buffer mechanism comprises a cylinder, a push plate and elastic pieces, wherein the cylinder is partially positioned in the accommodating groove, the push plate is positioned in the accommodating cavity and is rigidly connected with the cylinder, the elastic pieces are positioned on two sides of the push plate, the cylinder comprises a first end and a second end, the first end extends into the accommodating cavity, the second end is opposite to the first end, and the second end is fixedly connected with one end of the upright post; the two opposite surfaces of the push plate are respectively provided with a sliding groove, one end of the elastic piece and the push plate are movably clamped with the sliding grooves through a sliding block, and the other end of the elastic piece is connected with the inner side wall of the accommodating cavity; the base is further internally provided with a ring groove surrounding the accommodating groove, a blocking block is fixedly arranged in the ring groove, the outer surface of the cylinder is fixedly provided with a propping block, when the cylinder is accommodated in the accommodating groove, the propping block is accommodated in the ring groove, the propping block moves in the ring groove along with the rotation of the cylinder, and when the propping block props against the blocking block, the cylinder is fixed; the accommodating groove penetrates through the accommodating cavity; the base comprises a first part and a second part which are symmetrically arranged; the stand include with the connector that the cylinder is connected and with the fender body that the connector is connected, the connector with the fender body each other sets up perpendicularly.
2. The post with a buffering function according to claim 1, wherein the elastic member is a spring.
3. The post with a buffering function according to claim 2, wherein the elastic member is a conical spring.
4. The road post with the buffering function as claimed in claim 1, wherein the bottom of the receiving groove is in the shape of an inwardly concave spherical arc.
5. The road post with the buffering function as claimed in claim 4, wherein the bottom of the cylinder is in a spherical arc shape matched with the bottom of the containing groove.
6. The post according to claim 1, wherein the cross-section of the receiving groove is circular.
7. The road post with the buffering function as claimed in claim 1, wherein the number of the push plates is two, and the two push plates are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512713.0A CN109629484B (en) | 2018-12-11 | 2018-12-11 | Road post with buffer function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512713.0A CN109629484B (en) | 2018-12-11 | 2018-12-11 | Road post with buffer function |
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| CN109629484A CN109629484A (en) | 2019-04-16 |
| CN109629484B true CN109629484B (en) | 2021-11-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203499357U (en) * | 2013-09-26 | 2014-03-26 | 深圳坚朗海贝斯智能科技有限公司 | Automatic resetting mechanism |
| CN106223193A (en) * | 2016-07-26 | 2016-12-14 | 山东交通学院 | Cushion bumper structure at a kind of road and crossing |
| CN207794834U (en) * | 2018-01-02 | 2018-08-31 | 李宝坚 | A kind of lockset clutch |
| CN207847419U (en) * | 2018-01-17 | 2018-09-11 | 浙江金迪门业有限公司 | A kind of rotary timber |
| US10132101B1 (en) * | 2017-10-04 | 2018-11-20 | Thanomsak Hongthong | Rotatable legs for security barricades |
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2018
- 2018-12-11 CN CN201811512713.0A patent/CN109629484B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203499357U (en) * | 2013-09-26 | 2014-03-26 | 深圳坚朗海贝斯智能科技有限公司 | Automatic resetting mechanism |
| CN106223193A (en) * | 2016-07-26 | 2016-12-14 | 山东交通学院 | Cushion bumper structure at a kind of road and crossing |
| US10132101B1 (en) * | 2017-10-04 | 2018-11-20 | Thanomsak Hongthong | Rotatable legs for security barricades |
| CN207794834U (en) * | 2018-01-02 | 2018-08-31 | 李宝坚 | A kind of lockset clutch |
| CN207847419U (en) * | 2018-01-17 | 2018-09-11 | 浙江金迪门业有限公司 | A kind of rotary timber |
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| CN109629484A (en) | 2019-04-16 |
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