CN213274873U - Collision target suspension device - Google Patents
Collision target suspension device Download PDFInfo
- Publication number
- CN213274873U CN213274873U CN202120874515.XU CN202120874515U CN213274873U CN 213274873 U CN213274873 U CN 213274873U CN 202120874515 U CN202120874515 U CN 202120874515U CN 213274873 U CN213274873 U CN 213274873U
- Authority
- CN
- China
- Prior art keywords
- rod
- suspension
- limiting
- roof
- connecting frame
- 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.)
- Active
Links
Images
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model discloses a collision mark target linkage. In the collision target suspension device, a roof connecting frame is detachably connected with a roof luggage rack; the vertical support rod is connected with the car roof connecting frame and is vertical to the plane of the car roof connecting frame; the suspension rod is rotatably connected with the vertical support rod through a rotating connecting piece, two ends of the suspension rod are respectively a suspension end and a limiting end, the suspension end comprises a suspension hook, and the suspension hook is used for being connected with a suspended object; the counterweight table is connected with the limiting end and is used for balancing the weight of the hung object; the separable fixing piece is used for enabling the limiting end to be in contact with and abut against the limiting rod when no external force acts; the limiting rod is connected with the roof connecting frame and used for limiting the position of the suspension rod when no external force acts; the stay cord is used for pulling the suspension rod. The embodiment of the utility model provides a technical scheme has realized the simulation of dynamic collision mark target.
Description
Technical Field
The embodiment of the utility model provides a relate to linkage technical field, especially relate to a collision mark target linkage.
Background
The active safety system is mainly characterized in that various electronic induction control systems and mechanical systems are utilized to monitor the running state of an automobile in a running computer, when collision occurs or running danger occurs, the active safety system can estimate a collision coefficient, then remind a driver of cautious running, actively intervene in running control under emergency, is a first barrier for running safety, prevents accidents, and avoids dangerous situations and accidents.
In order to ensure the safety of practical use, the active safety system needs to be subjected to collision test before being applied to a production vehicle, generally, an actual collision target comprises a static target and a dynamic target, the static target can be simulated by placing the collision target at a preset position, the dynamic target needs to be moved according to a preset requirement, and the simulation difficulty is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a collision mark target linkage to realize the simulation of dynamic collision mark target.
An embodiment of the utility model provides a collision mark target linkage, include:
the car roof comprises a car roof connecting frame, a vertical supporting rod, a suspension rod, a counterweight table, a separable fixing piece, a rotary connecting piece, a plurality of stay ropes and a limiting rod;
the roof connecting frame is used for being detachably connected with a roof luggage rack;
the vertical support rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame;
the hanging rod is rotatably connected with the vertical supporting rod through the rotating connecting piece, two ends of the hanging rod are respectively a hanging end and a limiting end, the hanging end comprises a hanging hook, and the hanging hook is used for being connected with a hung object; the distance between the hanging end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, and the first distance is larger than the second distance;
the counterweight table is connected with the limiting end and used for balancing the suspended object and keeping the suspension rod horizontal;
the separable fixing piece is used for enabling the limiting end to be in contact and abut against the limiting rod when no external force acts;
the limiting rod is connected with the roof connecting frame and used for limiting the position of the suspension rod when no external force acts;
two ends of each stay rope are respectively connected with the suspension rod and the vertical support rod, and the stay ropes are used for pulling the suspension rods.
The collision target suspension device provided by the embodiment of the utility model comprises a roof connecting frame, a vertical support rod, a suspension rod, a counterweight table, a separable fixing part, a rotating connecting piece, a plurality of stay ropes and a limiting rod, wherein the roof connecting frame is detachably connected with a roof luggage rack, the vertical support rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame, the suspension rod is rotatably connected with the vertical support rod through the rotating connecting piece, the two ends of the suspension rod are respectively a suspension end and a limiting end, the suspension end comprises a suspension hook which is used for being connected with a suspended object, the distance between the suspension end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, the first distance is larger than the second distance, the counterweight table is connected with the limiting end, the counterweight table is used for being the suspended object, and the counterweight table keeps the suspension rod horizontal, the separable fixing part is used for making spacing end and gag lever post contact and offset when no exogenic action, and the gag lever post is connected with roof connection frame for when no exogenic action, inject the position that hangs the pole, each props the both ends of stay cord and is connected with hanging pole and vertical support pole respectively, props the stay cord and is used for dragging and hangs the pole. The simulation of dynamic collision targets is realized, the movable targets are provided for the collision test of the vehicle active safety technology, and the smooth collision test is facilitated.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of a collision target suspension device at a first viewing angle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a collision target suspension device at a second viewing angle according to an embodiment of the present invention;
fig. 3 is a schematic view of a practical application scenario of a collision target suspension device according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description will be given, with reference to the accompanying drawings and preferred embodiments, to the specific embodiments, structures, features and effects of a collision target suspension device according to the present invention.
An embodiment of the utility model provides a collision mark target linkage, include:
the car roof comprises a car roof connecting frame, a vertical supporting rod, a suspension rod, a counterweight table, a separable fixing piece, a rotary connecting piece, a plurality of stay ropes and a limiting rod;
the roof connecting frame is used for being detachably connected with a roof luggage rack;
the vertical support rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame;
the hanging rod is rotatably connected with the vertical supporting rod through the rotating connecting piece, two ends of the hanging rod are respectively a hanging end and a limiting end, the hanging end comprises a hanging hook, and the hanging hook is used for being connected with a hung object; the distance between the hanging end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, and the first distance is larger than the second distance;
the counterweight table is connected with the limiting end and used for balancing the suspended object and keeping the suspension rod horizontal;
the separable fixing piece is used for enabling the limiting end to be in contact and abut against the limiting rod when no external force acts;
the limiting rod is connected with the roof connecting frame and used for limiting the position of the suspension rod when no external force acts;
two ends of each stay rope are respectively connected with the suspension rod and the vertical support rod, and the stay ropes are used for pulling the suspension rods.
The collision target suspension device provided by the embodiment of the utility model comprises a roof connecting frame, a vertical support rod, a suspension rod, a counterweight table, a separable fixing part, a rotating connecting piece, a plurality of stay ropes and a limiting rod, wherein the roof connecting frame is detachably connected with a roof luggage rack, the vertical support rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame, the suspension rod is rotatably connected with the vertical support rod through the rotating connecting piece, the two ends of the suspension rod are respectively a suspension end and a limiting end, the suspension end comprises a suspension hook which is used for being connected with a suspended object, the distance between the suspension end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, the first distance is larger than the second distance, the counterweight table is connected with the limiting end, the counterweight table is used for being the suspended object, and the counterweight table keeps the suspension rod horizontal, the separable fixing part is used for making spacing end and gag lever post contact and offset when no exogenic action, and the gag lever post is connected with roof connection frame for when no exogenic action, inject the position that hangs the pole, each props the both ends of stay cord and is connected with hanging pole and vertical support pole respectively, props the stay cord and is used for dragging and hangs the pole. The simulation of dynamic collision targets is realized, the movable targets are provided for the collision test of the vehicle active safety technology, and the smooth collision test is facilitated.
The above is the core idea of the present application, and the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, under the premise that creative work is not done by ordinary skilled in the art, all other embodiments obtained all belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other embodiments that depart from the specific details disclosed herein, and one skilled in the art may readily devise many other varied embodiments that are not limited to the specific details disclosed herein.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the schematic drawings showing the structure of the device are not partially enlarged according to the general scale, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and height should be included in the actual fabrication.
Fig. 1 is a schematic structural diagram of a collision target suspension device at a first viewing angle according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of a collision target suspension device at a second viewing angle according to an embodiment of the present invention. As shown in fig. 1 and 2, the collision target suspension device includes a roof attachment frame 101, a vertical support rod 102, a suspension rod 103, a counterweight table 104, a separable fastener 105, a swivel joint 106, a plurality of stay cords 108, and a stopper rod 107.
The roof connecting frame 101 is used for being detachably connected with a roof rack, and the vertical support rod 102 is connected with the roof connecting frame 101 and is perpendicular to the plane of the roof connecting frame 101.
The hanging rod 103 is rotatably connected with the vertical supporting rod 102 through a rotating connecting piece 106, two ends of the hanging rod 103 are respectively a hanging end A and a limiting end B, the hanging end A comprises a hanging hook, and the hanging hook is used for being connected with a hung object. The distance between the hanging end a and the rotating connecting piece 106 is a first distance, the distance between the limiting end B and the rotating connecting piece 106 is a second distance, and the first distance is greater than the second distance.
The counterweight table 104 is connected with the limit end B, the counterweight table 104 is used for balancing a suspended object and keeping the suspension rod 103 horizontal, the separable fixing piece is used for enabling the limit end B to be in contact and abut against the limit rod 107 when no external force acts, the limit rod 107 is connected with the roof connecting frame 101 and is used for limiting the position of the suspension rod 103 when no external force acts, two ends of each stay rope 108 are respectively connected with the suspension rod 103 and the vertical support rod 102, and the stay ropes 108 are used for pulling the suspension rod 103.
It should be noted that the usage scenario of the impact target suspension device provided in this embodiment includes: in the collision test of the active safety system of the large vehicle, the collision target suspension device is placed and fixed on a luggage rack of a vehicle roof, the suspension hook is adopted to suspend the collision target, the limit end of the suspension rod is contacted and offset with the limit rod under the action of the separable fixing piece, and the counterweight object is placed on the counterweight table, so that the collision target is suspended at a preset height, and the suspension rod is prevented from falling into a collision range in a collision process to influence a test result. After the arrangement is completed, the collision target 3 is suspended to the oblique side of the vehicle 1 by the collision target suspension device 2, as shown in fig. 3. In the collision test, the vehicle drives the collision target and removes, and the target is removed in the simulation, and the test vehicle collides the collision target, hangs the pole and receives the effect of collision target tensile force, and its spacing end separates with the gag lever post, cushions the impact, avoids collision target linkage to damage.
It should be further noted that the separation fixing piece is connected with the limiting end and the limiting rod when no external force acts on the separation fixing piece, and the rotating rod is prevented from rotating back and forth due to unfixed position when no collision occurs.
Illustratively, the stay cord may be a rigid cord to increase the stability of the structure while ensuring the pulling ability.
Optionally, in order to avoid the limiting rod from being too high, the limiting end of the suspension rod can be set to form a limiting protrusion towards one side of the limiting rod, the forming mode of the limiting protrusion can be, for example, a right-angled triangle formed by the connecting rod, and one right-angled edge of the right-angled triangle is the same as the extending direction of the limiting rod. So, the height that the gag lever post can set up is less, can offset with hanging the pole, inject the position of hanging the pole. In other embodiments of this embodiment, the limit end of the suspension rod and the limit rod may also have other structures, which is not specifically limited in this embodiment.
In this embodiment, the structure of the rotary joint may include, for example: and the connecting pipe is sleeved on the vertical supporting rod and can rotate relative to the fixed vertical supporting rod. The connecting pipe is connected with the suspension rod through a connecting rod.
The collision target suspension device provided by the embodiment comprises a roof connecting frame, a vertical supporting rod, a suspension rod, a counterweight table, a separable fixing part, a rotating connecting piece, a plurality of stay ropes and a limiting rod, wherein the roof connecting frame is detachably connected with a roof luggage rack, the vertical supporting rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame, the suspension rod is rotatably connected with the vertical supporting rod through the rotating connecting piece, two ends of the suspension rod are respectively provided with a suspension end and a limiting end, the suspension end comprises a suspension hook which is used for being connected with a suspended object, the distance between the suspension end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, the first distance is larger than the second distance, the counterweight table is connected with the limiting end, the counterweight table is used for balancing the suspended object, and the suspension rod is kept horizontal, the separable fixing part is used for making spacing end and gag lever post contact and offset when no exogenic action, and the gag lever post is connected with roof connection frame for when no exogenic action, inject the position that hangs the pole, each props the both ends of stay cord and is connected with hanging pole and vertical support pole respectively, props the stay cord and is used for dragging and hangs the pole. The simulation of dynamic collision targets is realized, the movable targets are provided for the collision test of the vehicle active safety technology, and the smooth collision test is facilitated.
Optionally, the embodiment of the utility model provides a collision mark target linkage can also include many elasticity and strengthen the rope, the both ends that the rope is strengthened to the elasticity respectively with hang pole and vertical support pole and be connected, the rope is strengthened to the elasticity is used for dragging and hangs the pole.
It should be noted that, in the actual test process, the collision mark target has certain weight, and the impact acts on the target of collision and also can make the target linkage atress of collision, for avoiding propping the disconnection of unable exogenic action that bears of stay cord, leads to hanging the end of hanging the pole and fall to the ground, and this embodiment sets up elasticity reinforcing rope, with prop the stay cord and draw jointly drag and hang the pole, and is concrete, can all set up an elastic rope in every position of propping the stay cord.
For example, both ends of the elastic reinforcing cord may be coupled to the suspension bar or the vertical support bar in the form of a hook, and either end of the elastic reinforcing cord may be temporarily coupled to a standby position in a conventional manner and then coupled to a corresponding position when necessary.
Alternatively, the elastic reinforcing cord may be a spring cord or an elastic cord, or the like.
In this embodiment, the roof connection frame includes a frame body including at least one connection hole through which the connection rod passes, at least one connection rod, and at least two latches connecting the connection rod and a roof rack of the vehicle.
Exemplarily, the number of the connecting rods can be two, and each connecting rod corresponds to two latches and is respectively used for connecting two ends of the corresponding connecting rod with the left side and the right side of the roof upper luggage rack.
It should be noted that, the roof connection frame provided by the embodiment has a simple structure, and the connection manner is firm and convenient to implement.
Illustratively, the impact target may comprise a dummy.
It should be noted that, in the test process of the active safety system of a large vehicle, a human is an important target, and for a human in a stationary state, simulation can be performed by placing a dummy at a predetermined position, but simulation of a moving human is not easy to perform, and the collision target suspension device provided in this embodiment effectively solves the above problems.
It is understood that, according to different application scenarios, in other embodiments of this embodiment, the collision target may also be another object besides a dummy, which is not specifically limited in this embodiment.
With continued reference to fig. 1 and 2, the impact target suspension device may further include a directional bar 113, the directional bar 113 being connected to the suspension end a, the directional bar 113 being used to fix the orientation of the impact target.
It should be noted that, because the collision mark target is through rope and suspension hook connection hang, at practical in-process, the collision mark target easily takes place rotatoryly, influences the testing process, takes place for avoiding above-mentioned problem, and this embodiment sets up the orientation lever. For example, in the case where the impact target is a dummy, the shoulder of the dummy may be fixed to the orientation bar.
Illustratively, as shown in FIG. 1, the directional bar 113 is inverted T-shaped.
Thus, the position width of the orientation rod for connecting with the collision target is large, and the connection of the collision target is convenient.
Optionally, with continued reference to fig. 1, the impact target suspension device may further include at least one tilt support rod 109, wherein both ends of the at least one tilt support rod 109 are connected to the vertical support rod 102 and the roof connecting frame 101, respectively, and the tilt support rod 109 is used for supporting the vertical support rod 102.
It should be noted that, the vertical support rod is only connected with the roof connecting frame at the bottom, and the bearable power is less, easily emptys, and the inclined support rod provided by this embodiment can support the vertical support rod, improves vertical support rod intensity. For example, the vertical support bar may be disposed at a corner of the roof connecting frame, and two inclined support bars having different sizes may be disposed between two sides of the roof connecting frame connected to the corner.
Illustratively, as shown in fig. 1, the at least one inclined supporting rod 109 includes a first inclined supporting rod, the detachable fixing member 105 may be a spring, both ends of the spring are respectively connected to the first inclined supporting rod and the limiting end B, and the first inclined supporting rod, the limiting rod 107 and the hanging rod 103 are sequentially arranged along a rotation direction of the hanging rod 103 after being detached from the limiting rod 107 by an external force.
It can be understood that, the spring is in the tensile state all the time, so when no effort, receives the spring tension effect, hangs the limited end and the gag lever post of pole and offsets, fixed connection, when receiving the exogenic action, the extension of spring degree increase, hangs the pole and separates with the gag lever post, carries out the buffering of doing all can, later can also be close to the gag lever post under the effort of spring, realizes reseing.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (8)
1. A bump target suspension device, comprising:
the car roof comprises a car roof connecting frame, a vertical supporting rod, a suspension rod, a counterweight table, a separable fixing piece, a rotary connecting piece, a plurality of stay ropes and a limiting rod;
the roof connecting frame is used for being detachably connected with a roof luggage rack;
the vertical support rod is connected with the roof connecting frame and is vertical to the plane of the roof connecting frame;
the hanging rod is rotatably connected with the vertical supporting rod through the rotating connecting piece, two ends of the hanging rod are respectively a hanging end and a limiting end, the hanging end comprises a hanging hook, and the hanging hook is used for being connected with a hung object; the distance between the hanging end and the rotating connecting piece is a first distance, the distance between the limiting end and the rotating connecting piece is a second distance, and the first distance is larger than the second distance;
the counterweight table is connected with the limiting end and used for balancing the suspended object and keeping the suspension rod horizontal;
the separable fixing piece is used for enabling the limiting end to be in contact and abut against the limiting rod when no external force acts;
the limiting rod is connected with the roof connecting frame and used for limiting the position of the suspension rod when no external force acts;
two ends of each stay rope are respectively connected with the suspension rod and the vertical support rod, and the stay ropes are used for pulling the suspension rods.
2. The impact target suspension device of claim 1, wherein a plurality of elastic reinforcing cords are connected at both ends thereof to the suspension rod and the vertical support rod, respectively, and the elastic reinforcing cords are used for pulling the suspension rod.
3. The impact target suspension device of claim 1, wherein the roof connecting frame comprises a frame body, at least one connecting rod and at least two latches;
the frame body includes at least one connection hole;
the connecting rod penetrates through the connecting hole;
the latch is connected with the connecting rod and a luggage rack of the vehicle.
4. The impact target suspension device of claim 1 wherein the impact target comprises a dummy.
5. The impact target suspension device of claim 1 further comprising an orientation bar connected to the suspension end, the orientation bar for fixing the orientation of the impact target.
6. The impact target suspension device of claim 5 wherein the orientation bar is inverted T-shaped.
7. The impact target suspension device according to claim 1, further comprising at least one inclined support bar, both ends of the at least one inclined support bar being connected to the vertical support bar and the roof connecting frame, respectively, the inclined support bar supporting the vertical support bar.
8. The impact target suspension device according to claim 7, wherein the at least one inclined support rod comprises a first inclined support rod, the separable fixing member is a spring, two ends of the spring are respectively connected with the first inclined support rod and the limiting end, and the first inclined support rod, the limiting rod and the suspension rod are sequentially arranged along a rotation direction of the suspension rod after the suspension rod is separated from the limiting rod under the action of an external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120874515.XU CN213274873U (en) | 2021-04-26 | 2021-04-26 | Collision target suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120874515.XU CN213274873U (en) | 2021-04-26 | 2021-04-26 | Collision target suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213274873U true CN213274873U (en) | 2021-05-25 |
Family
ID=75955152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120874515.XU Active CN213274873U (en) | 2021-04-26 | 2021-04-26 | Collision target suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213274873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978722A (en) * | 2021-11-22 | 2022-01-28 | 辐途汽车科技(苏州)有限公司 | Automatic driving collision test system and operation method for unmanned aerial vehicle mounted dummy |
-
2021
- 2021-04-26 CN CN202120874515.XU patent/CN213274873U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978722A (en) * | 2021-11-22 | 2022-01-28 | 辐途汽车科技(苏州)有限公司 | Automatic driving collision test system and operation method for unmanned aerial vehicle mounted dummy |
| CN113978722B (en) * | 2021-11-22 | 2024-01-30 | 辐途汽车科技(苏州)有限公司 | Unmanned aerial vehicle-mounted dummy automatic driving collision test system and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213274873U (en) | Collision target suspension device | |
| CN211550967U (en) | A cloud platform shock attenuation equipment for on high-speed mobile device | |
| CN205790783U (en) | Helmet automatic takeup support | |
| CN105565146B (en) | Suspension hook holding structure, crane and suspension hook fixing means | |
| CN112411992B (en) | Construction platform is prevented shaking by suspension type for construction | |
| CN205029274U (en) | Fixed bolster that faces cable | |
| CN207738330U (en) | A kind of slipping tail hanging apparatus | |
| CN117208754B (en) | Lifting device for special-shaped building structure | |
| CN202869826U (en) | Hanging frame device for vehicle body modal testing | |
| CN204642850U (en) | A kind of wallboard piling bin | |
| CN205934098U (en) | A gallows for car spring shock absorber support electrophoresis passivation treating | |
| CN204152219U (en) | Side fascia stone tongs | |
| CN105417342A (en) | Torsion-resisting glass hanging bracket | |
| CN205322010U (en) | Wooden hat rack | |
| CN204079244U (en) | A kind of Combined changable is apart from suspension rod | |
| CN220914927U (en) | Cable support | |
| CN201232840Y (en) | Hanger assembly for display | |
| CN205087791U (en) | 24 passageway passenger car road hoist device for analogue test | |
| CN204944858U (en) | Self-equilibrating high-order heavy duty load charger | |
| CN109205455A (en) | A kind of air-conditioner set integral hoisting platform and its construction method | |
| CN210763897U (en) | Hoisting equipment for large steel member | |
| CN216006667U (en) | Inclined fine adjustment device at bottom of triangular hanging basket | |
| CN217297060U (en) | Anti-collision device for tower crane and tower crane thereof | |
| CN211286008U (en) | Quick-connecting type walking wheel | |
| CN217988198U (en) | Safety belt hanging device for high-altitude operation near edge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |