CN215859321U - Protective device for vehicle maintenance - Google Patents
Protective device for vehicle maintenance Download PDFInfo
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- CN215859321U CN215859321U CN202121551444.6U CN202121551444U CN215859321U CN 215859321 U CN215859321 U CN 215859321U CN 202121551444 U CN202121551444 U CN 202121551444U CN 215859321 U CN215859321 U CN 215859321U
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- cover plate
- guide rail
- transmission assembly
- guard
- vehicle
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Abstract
The application relates to a protector for vehicle maintenance, protector includes: the cover plate is used for covering at least part of an opening part of the trench in an unfolded state, the trench is arranged in a vehicle maintenance site, and the cover plate comprises a first end and a second end which are respectively arranged at two ends of the cover plate opposite to each other along the unfolding direction; the cover plate is at least partially laid on the guide rail, and the first end of the cover plate is connected with the guide rail in a sliding manner along the extending direction of the guide rail; the first transmission assembly is connected with the first end and is used for transmitting the first end so as to drive the first end to slide along the guide rail in the unfolding direction and further unfold the cover plate; and the second transmission assembly is connected with the second end and used for transmitting the second end so as to drive the first end to slide along the guide rail in the opposite direction of the unfolding direction and further retract the cover plate. The problem of the trench in the maintenance place that exists has the potential safety hazard that personnel fell among the prior art is solved.
Description
Technical Field
The application relates to the technical field of maintenance equipment, in particular to a protection device for vehicle maintenance.
Background
In a field for repairing a vehicle, a trench is often provided. When the maintainer overhauls the vehicle, the vehicle traveles to the chassis of vehicle can at least partial opening that covers the trench for the maintainer who is arranged in the trench can overhaul the chassis of vehicle, waits to overhaul to accomplish, and the vehicle is driven away from the trench. However, when the vehicle does not need to be repaired, the trench having the open opening may cause a certain safety hazard, for example, a person may fall into the trench.
SUMMERY OF THE UTILITY MODEL
The application provides a protector for vehicle maintenance to there is the problem of the potential safety hazard that personnel fell in the trench of the maintenance place that exists among the solution prior art.
The application provides a protector for vehicle maintenance, protector includes:
the cover plate is used for covering at least part of an opening part of a trench in an unfolded state, the trench is arranged in a vehicle maintenance site, the cover plate comprises a first end and a second end, and the first end and the second end are respectively arranged at two ends, opposite to each other, of the cover plate in the unfolding direction;
the first end of the cover plate is connected with the guide rail in a sliding mode along the extending direction of the guide rail;
the first transmission assembly is connected with the first end and is used for transmitting the first end so as to drive the first end to slide along the guide rail in the unfolding direction and further unfold the cover plate;
and the second transmission assembly is connected with the second end and used for transmitting the second end so as to drive the first end to slide along the guide rail in the direction opposite to the unfolding direction, and then the cover plate is folded.
In an alternative embodiment of the present disclosure, the first transmission assembly includes a traction member and a motor coupled to one end of the traction member; the other end of the traction piece is in driving connection with the first end.
In an alternative embodiment of the present disclosure, the second transmission assembly includes a motorized pulley, and the second end is connected to an outer circumferential side of the motorized pulley.
In an optional embodiment of the present specification, the apparatus further includes a vehicle detection device, a distance between a setting position of the vehicle detection device and the guide rail does not exceed a distance threshold, and the vehicle detection device is connected to the second transmission assembly to control the second transmission assembly to drive the cover plate to retract when the vehicle detection device detects that the vehicle moves towards the guide rail.
In an alternative embodiment of the present description, the vehicle detection device comprises a photoelectric switch.
In an alternative embodiment of the present disclosure, the number of the vehicle detection devices is at least two, wherein at least one vehicle detection device is disposed adjacent to a beginning end of the guideway, and at least one vehicle detection device is disposed adjacent to an end of the guideway, the beginning end and the end being opposite ends of the guideway in the unfolding direction.
In an alternative embodiment of the present disclosure, the cover plate includes a plurality of cover plate units, the plurality of cover plate units are sequentially arranged along the unfolding direction, and the connection between the adjacent cover plate units is a reversible connection.
In an optional embodiment of the present disclosure, the cover plate unit includes a body, a connecting protrusion and a connecting groove, and the connecting protrusion and the connecting groove are respectively disposed at two opposite ends of the body in the unfolding direction;
the connecting protrusion on the cover plate unit is embedded into the connecting groove of the other cover plate unit adjacent to the connecting protrusion in a turnover mode.
In an alternative embodiment of the present disclosure, the opening of the connecting groove includes a first stopping edge and a second stopping edge extending along the unfolding direction and oppositely arranged along the turning direction; the size of the first stopping edge along the unfolding direction is larger than that of the second stopping edge along the unfolding direction.
In an optional embodiment of the present disclosure, the connecting protrusion includes a first protrusion and a second protrusion extending along the unfolding direction and disposed opposite to each other along the flipping direction; the size of the first protrusion along the unfolding direction is smaller than that of the second protrusion along the unfolding direction.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the protector for vehicle inspection that this application embodiment provided includes apron, guide rail, first transmission assembly and second transmission assembly through this specification. The cover plate is unfolded along the guide rail under the transmission of the first transmission assembly, so that an opening part of the trench is covered, and people are prevented from falling; the cover plate is folded along the guide rail under the transmission of the second transmission assembly, so that the opening part of the trench is opened, and the convenience for maintenance personnel to maintain the vehicle is realized. It can be seen that the protector in this specification can effectually solve the trench in the maintenance place and have the problem of the potential safety hazard that personnel fell.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present specification and together with the description, serve to explain the principles of the specification.
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of at least a portion of a guard for vehicle service according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of at least a portion of a guard for vehicle service according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of at least a portion of a guard for vehicle service according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of at least a portion of a guard for vehicle service according to an embodiment of the present disclosure;
FIG. 5 is an enlarged view of the area A corresponding to FIG. 4;
FIG. 6 is a partial schematic structural view of a cover plate of a guard device for vehicle maintenance according to an embodiment of the present application.
Wherein, the reference numbers are as follows:
1-cover plate, 11-first end of cover plate, 12-second end of cover plate, 13-cover plate unit of cover plate;
131-the main body of the main body,
132-connecting projection, 1321-first projection, 1322-second projection,
133-connecting groove, 1331-first stop edge, 1332-second stop edge;
2-guide rail, 21-start of guide rail, 22-end of guide rail;
3-the first transmission assembly, 31-the traction member of the first transmission assembly, 32-the motor of the first transmission assembly, 33-the reel of the first transmission assembly, 34-the first support member of the first transmission assembly;
4-a second transmission assembly, 41-a motorized roller of the second transmission assembly, 42-a second support of the second transmission assembly;
5-vehicle detection device, 51-one of the vehicle detection devices, 52-the other of the vehicle detection devices.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
The present specification introduces a guard for vehicle service. When the protection device in this specification is in a use state, cooperate with a trench arranged in an overhaul field. Any site that can be used for vehicle inspection, whether it is used for vehicle inspection only or not, can be regarded as the vehicle inspection site in this specification. The trench referred to in this specification may be a pit-like structure depressed into the ground in an inspection site. The trench can have the normal upwards opening of seting up along vertical direction, and maintainer when overhauing the vehicle can get into in the trench through the opening to overhaul the vehicle in the trench.
The protection device in the specification is suitable for being matched with ditches of different models, sizes and opening positions. When the trench is specially used for overhauling the passenger car, the size of the trench in the long side direction is possibly larger, and the hidden danger of falling of people caused by the large size is more serious.
The guard in this specification comprises a cover plate 1, a guide rail 2, a first transmission assembly 3 and a second transmission assembly 4, as shown in figures 1 to 4.
Wherein, the cover plate 1 is used for covering at least part of the opening part of the trench in the unfolded state, the trench is opened in the vehicle maintenance site, the cover plate 1 comprises a first end 11 and a second end 12, and the first end 11 and the second end 12 are respectively arranged at two opposite ends of the cover plate 1 along the unfolding direction (the direction D shown in figure 1).
In this specification, the "deployed state" may be a fully deployed state (i.e., the cover 1 is deployed to the limit) or a partially deployed state (e.g., the cover 1 is deployed by 80%, and the other 20% is in a stowed state). In the unfolded state of the cover 1, at least partial covering of the opening of the trench is achieved, so that persons are prevented from falling into the trench from the position of the covered opening of the trench.
The guide rails 2 serve at least to define the direction of extension of the cover plate 1. At least part of the cover plate 1 is laid on the guide rail 2, and the first end 11 is slidably connected with the guide rail 2 along the extending direction of the guide rail 2. In this specification, the extending direction of the guide rail 2 may be parallel to the unfolding direction, or the extending direction of the guide rail 2 may form an angle with the unfolding direction.
In the protection device in this specification, when in use, the guide rail 2 may be disposed along the long side direction of the opening of the trench, and the guide rail 2 may be disposed on the long side of the opening, and the long side provides support for the guide rail 2. In addition, in an alternative embodiment of the present description, the protection device may further comprise a support (not shown in the figures), on which the rail 2 is laid, and the support is provided for the rail 2 by the support.
In the related art, a guide mechanism that can be used to define the extending direction of the cover plate 1 may be used as the guide rail 2 in this specification.
In an alternative embodiment, the guide rail 2 is laid in the longitudinal direction of the trench, and an opening with a normal line along the horizontal direction is arranged on the guide rail, as shown in fig. 2. At least a portion (e.g., a first end) of the cover plate 1 is inserted into the guide rail from the opening such that the guide rail provides a limit to the sliding of the cover plate 1.
Optionally, the number of the guide rails 2 is two, and the openings of the two guide rails 2 are opposite to each other.
For convenience of description, the end of the guide rail 2 adjacent to the first end 11 of the cover plate 1 in the state that the cover plate 1 is unfolded to the limit is referred to as a terminal 22; the end of the rail 2 adjacent to the first end 11 of the cover 1 is referred to as the start 21, with the cover 1 in a fully retracted state (i.e. with the cover 1 fully retracted).
The second transmission assembly 4 is connected to the second end 12 to drive the first end 11 to slide along the guide rail 2 in the direction opposite to the unfolding direction in a manner of transmitting the second end 12 of the cover plate 1, so that the first end 11 slides to the starting end 21, and the cover plate 1 is retracted.
It can be seen that the present description provides a guard for vehicle service, by which the guard comprises a cover plate 1, a guide rail 2, a first transmission assembly 3 and a second transmission assembly 4. The cover plate 1 is unfolded along the guide rail 2 under the transmission of the first transmission component 3, so as to cover the opening part of the trench and prevent people from falling; the cover plate 1 is folded along the guide rail 2 under the transmission of the second transmission component 4, so that the opening part of the trench is opened, and a maintainer can conveniently overhaul a vehicle. It can be seen that the protector in this specification can effectually solve the trench in the maintenance place and have the problem of the potential safety hazard that personnel fell.
Alternatively, in practical applications, at least one of the guide rail 2, the first transmission assembly 3 and the second transmission assembly 4 may be disposed inside the trench.
In an alternative embodiment of the present description, as shown in fig. 2 and 3, in order to realize the transmission of the first transmission assembly 3 to the cover plate 1, the first transmission assembly 3 comprises a traction member 31 and a motor 32 connected with one end of the traction member 31; the other end of the pulling member 31 is in driving connection with the first end 11. When the cover plate 1 is unfolded, the motor 32 rotates to retract the pulling member 31, and then the first end 11 connected with the pulling member 31 is driven to move along the unfolding direction. In this specification, the pulling member 31 may be a steel wire, a nylon rope, or the like. The motor 32 may be a reduction motor or the like.
In an alternative embodiment of the present disclosure, the first transmission assembly 3 may further include a winding drum 33, and the traction member 31 is connected to the motor 32 through the winding drum 33. When the cover plate 1 is controlled to be unfolded, the motor 32 drives the winding drum 33 to rotate, so that the pulling member 31 is wound on the winding drum 33, and the first end 11 is driven to move along the unfolding direction.
Optionally, the first transmission assembly 3 may further comprise a first support 34. The first support members 34 are connected to both axial ends of the drum 33, provide support for the drum 33, and provide a space for the traction member 31 to be wound on the drum 33.
Further optionally, as shown in fig. 4, the second transmission assembly 4 includes a motorized pulley 41, and the second end 12 is connected to an outer circumferential side of the motorized pulley 41, when the cover plate 1 is retracted, the motorized pulley 41 rotates to drive the second end 12 to turn over the cover plate 1 along a rotation direction of the motorized pulley 41, and further wind around the outer circumferential side of the motorized pulley 41 to retract the cover plate 1.
Alternatively, the axial direction of the motorized pulley 41 is perpendicular to the unwinding direction and parallel to the horizontal direction.
The second transmission assembly 4 may also include a second support 42. The second support members 42 are coupled to both axial ends of the motorized pulley 41 to provide support for the motorized pulley 41 and to provide a space for the cover plate 1 to be wound around the motorized pulley 41.
It can be seen that the cover plate 1 in the present specification can be retracted at least on the outer peripheral side of the motorized pulley 41, and in order to retract the cover plate 1, in an alternative embodiment of the present specification, the cover plate 1 may be a rubber plate having a certain flexibility in the turning direction.
In order to improve the support of a person who steps on the cover plate 1 and improve the flatness of the cover plate 1 in the unfolded state, in another alternative embodiment of the present specification, as shown in fig. 5 and 6, the cover plate 1 includes a plurality of cover plate units 13, the plurality of cover plate units 13 are arranged in sequence in the unfolding direction, and the connection between the adjacent cover plate units 13 is a reversible connection. Alternatively, the cover unit 13 is made of a material having rigidity higher than that of rubber. In this embodiment, when the cover plate 1 is folded and unfolded, the cover plate 1 can be folded and unfolded through the flip fit between the cover plate units 13, and on the other hand, the elastic deformation of the cover plate units 13 is reduced, so that the cover plate 1 has sufficient support capability for people stepping on the cover plate 1 in the unfolded state.
Optionally, the material of the cover plate unit 13 is at least one of a polycarbonate plate, PVC, and PE.
In an alternative embodiment of the present description, the cover unit 13 may be a hinge, and the hinge may include a first member, a second member, and a first shaft, and the first member and the second member may be reversibly connected by the first shaft such that the first member and the second member may be turned along the first shaft. Of the two connected cover units 13, a first piece of one cover unit 13 is fixedly connected (e.g., welded, riveted, etc.) to a second piece of the other cover unit 13; it is also possible that a first part of one cover unit 13 and a second part of one cover unit 13 are pivotably connected by a second shaft to achieve a pivotable connection between the cover units 13.
In another alternative embodiment of the present specification, the cover unit 13 includes a body 131, a connecting protrusion 132, and a connecting groove 133, and the connecting protrusion 132 and the connecting groove 133 are respectively disposed at two opposite ends of the body 131 in the unfolding direction. The coupling projection 132 of the cover unit 13 is reversibly inserted into the coupling groove 133 of the other cover unit 13 adjacent to the coupling projection 132.
In an alternative embodiment, to achieve the connection between two adjacent cover plate units 13, the connecting protrusion 132 may include a connecting rod and a spherical end, wherein two ends of the connecting rod are connected with the body 131 and the spherical end respectively. In two adjacent cover plate units 13, the volume of the groove-like structure of the connecting groove 133 of one cover plate unit 13 is larger than that of the spherical end of the other cover plate unit 13, so that the spherical end embedded in the groove-like structure can rotate in the groove-like structure. And, the opening of the groove-like structure has an area smaller than the sectional area of the ball-shaped end so that the ball-shaped end is not separated from the connection groove 133 to realize the reversible connection between the adjacent two cover plate units 13. Furthermore, the connecting rod can extend into the trough-like structure, connecting with the spherical end.
In another alternative embodiment, to realize the connection between two adjacent cover plate units 13, the opening of the connecting groove 133 includes a first stopping edge 1331 and a second stopping edge 1332 extending along the unfolding direction and oppositely arranged along the turning direction; the dimension of the first stop edge 1331 in the deployment direction is greater than the dimension of the second stop edge 1332 in the deployment direction. In addition, the connection projection 132 includes a first projection 1321 and a second projection 1322 extending in the unfolding direction and arranged opposite to each other in the turning direction; the dimension of first projection 1321 in the expansion direction is smaller than the dimension of second projection 1322 in the expansion direction.
Optionally, the first projection 1321 is located between the first stop edge 1331 and the second projection 1322, and the second projection 1322 is located between the second stop edge 1332 and the first projection 1321. The first protrusion 1321 is bent toward the first stopping edge 1331, and the second protrusion 1322 is bent toward the second stopping edge 1332. So that, when bent, the end of the first projection 1321 slides along at least part of the contour of the first stop edge 1331 and the end of the second projection 1322 slides along at least part of the contour of the second stop edge 1332.
In order to provide a stable support in the direction of the compressive stress when the cover plate 1 is subjected to the compressive stress in the unfolded state. In an alternative embodiment of the present description, the side of the cover plate on which the first stop edge 1331 is provided is disposed towards the outside of the trench, and the side of the cover plate on which the second stop edge 1332 is provided is disposed towards the inside of the trench.
Through the protector in each preceding embodiment, can carry out effectual sheltering from to the opening of trench when not overhauing the vehicle promptly to reduce the potential safety hazard that personnel fell.
In addition, the protection device in this specification is through the structural design and/or the selection of material to the apron unit, the support of the apron in the compressive stress direction of effectual improvement. Especially in being used for carrying out the place of overhauing to oversize vehicles such as passenger train, freight train, the size of trench is probably great along the size on long limit, and the support capacity to the apron on long limit direction is higher this moment, and protector in this specification then can be better be applicable to along the great trench of size on long limit.
In an alternative embodiment of the present description, the cover 1 is retracted to open the opening of the trench in order to allow the vehicle to be serviced. The guard in this description may also include a vehicle detection device 5. The distance between the set position of the vehicle detection device 5 and the guide rail 2 does not exceed a distance threshold (may be a preset empirical value), and the vehicle detection device 5 is connected with the second transmission assembly 4 so as to control the second transmission assembly 4 to drive the cover plate 1 to be folded when the vehicle detection device 5 detects that an object moves towards the guide rail 2.
In an alternative embodiment of the present description, as shown in fig. 1, the vehicle detection device 5 is two. One of the vehicle detecting devices 52 is disposed adjacent to the start 21 of the guideway 2 and the other vehicle detecting device 51 is disposed adjacent to the end 22 of the guideway 2. The vehicle detecting device 5 can detect and control the state of the cover 1 in time regardless of which end the vehicle is driven to approach the guideway.
The present specification does not exclude the case where the vehicle detection apparatus 5 is two or more, if necessary.
Alternatively, the vehicle detection apparatus may include a weight detection unit. The weight detecting unit may be disposed on the ground for detecting the weight of the object pressed thereon. When the detected weight of the object is greater than a weight threshold (a preset value, for example, one ton), it is determined that the object is a vehicle, and the second transmission assembly 4 is controlled to retract the cover plate 1.
In addition, in another alternative embodiment of the present specification, the vehicle detection device 5 includes an optoelectronic switch, and when the approach of the vehicle is detected, the second transmission assembly 4 is controlled to drive the cover plate 1 to retract.
In a further alternative embodiment of the present description, the guard may further comprise a control switch. The control switch is connected with the first transmission component 3, and under the triggering of the maintainer, the first transmission component 3 is controlled to drive the cover plate 1 to be unfolded.
In an alternative embodiment of the present description, the end 22 of the guide rail 2 is provided with a stop catch (not shown in the figures) that stops the cover plate 1 sliding in the unfolding direction. When the first end 11 slides along the unfolding direction to abut against the stop, the first end 11 cannot slide along the unfolding direction any more, and the motor 32 is automatically closed due to overlarge torsion, and the first end 11 is not driven to slide along the unfolding direction any more.
In an alternative embodiment of the present description, the guard further comprises an alarm member (not shown). The prompting component can emit a sound signal (in this case, the prompting component can include a loudspeaker), a light signal (in this case, the prompting component can include an indicator light), and the prompting component is connected with the second transmission assembly 4. The prompting component sends a prompting signal after detecting that the operation of the second transmission assembly 4 is stopped so as to prompt a maintainer that the cover plate is folded and can enter the trench for operation.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present disclosure, and is intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the specification. Thus, the description is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A guard for vehicle service, the guard comprising:
the cover plate (1) is used for covering at least part of an opening part of a trench in a unfolded state, the trench is arranged in a vehicle maintenance site, the cover plate (1) comprises a first end (11) and a second end (12), and the first end (11) and the second end (12) are respectively arranged at two opposite ends of the cover plate (1) along the unfolding direction;
the guide rail (2) is laid at least partially on the cover plate (1), and the first end (11) is connected with the guide rail (2) in a sliding mode along the extending direction of the guide rail (2);
the first transmission assembly (3) is connected with the first end (11) and is used for transmitting the first end (11) so as to drive the first end (11) to slide along the guide rail (2) in the unfolding direction and further unfold the cover plate (1);
the second transmission assembly (4) is connected with the second end (12) and used for transmitting the second end (12) to drive the first end (11) to slide along the guide rail (2) in the direction opposite to the unfolding direction, and then the cover plate (1) is folded.
2. Guard device according to claim 1, characterized in that said first transmission assembly (3) comprises a traction member (31) and an electric motor (32) connected to one end of said traction member (31); the other end of the traction piece (31) is in driving connection with the first end (11).
3. Guard device according to claim 1, characterized in that the second transmission assembly (4) comprises a motorized pulley (41), the second end (12) being connected to the outer peripheral side of the motorized pulley (41).
4. Guard device according to claim 1, characterized in that it further comprises a vehicle detection device (5) located at a distance from the guideway (2) not exceeding a distance threshold, said vehicle detection device being connected to the second transmission assembly (4) to control the second transmission assembly (4) to bring the cover plate (1) to the retracted position when the vehicle detection device detects that the vehicle is moving towards the guideway (2).
5. The guard according to claim 4, wherein the vehicle detection device comprises a photoelectric switch.
6. Guard means according to claim 4, characterized in that the vehicle detection devices (5) are at least two, wherein at least one vehicle detection device (5) is arranged adjacent to a beginning of the guide rail (2) and at least one vehicle detection device (5) is arranged adjacent to an end of the guide rail (2), the beginning and end being respectively opposite ends of the guide rail (2) in the deployment direction.
7. Guard according to claim 1, characterised in that the cover plate (1) comprises a plurality of cover plate units (13), which cover plate units (13) are arranged one after the other in the unfolding direction, the connection between adjacent cover plate units (13) being a reversible connection.
8. Guard device according to claim 7, characterized in that the cover unit (13) comprises a body (131), a connecting projection (132) and a connecting groove (133), the connecting projection (132) and the connecting groove (133) being respectively provided at opposite ends of the body (131) in the deployment direction;
the connecting protrusion (132) on the cover plate unit (13) is reversibly inserted into the connecting groove (133) of another cover plate unit (13) adjacent to the connecting protrusion (132).
9. Guard means according to claim 8, characterized in that the opening of the connecting groove (133) comprises a first stop edge (1331) and a second stop edge (1332) extending in the deployment direction and arranged opposite in the direction of inversion; the dimension of the first stop edge (1331) in the deployment direction is greater than the dimension of the second stop edge (1332) in the deployment direction.
10. Guard means according to claim 8, characterized in that said attachment projection (132) comprises a first projection (1321) and a second projection (1322) extending in said deployment direction and arranged opposite one another in said overturning direction; the dimension of the first projection (1321) in the deployment direction is smaller than the dimension of the second projection (1322) in the deployment direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551444.6U CN215859321U (en) | 2021-07-08 | 2021-07-08 | Protective device for vehicle maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551444.6U CN215859321U (en) | 2021-07-08 | 2021-07-08 | Protective device for vehicle maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215859321U true CN215859321U (en) | 2022-02-18 |
Family
ID=80333258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121551444.6U Active CN215859321U (en) | 2021-07-08 | 2021-07-08 | Protective device for vehicle maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215859321U (en) |
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2021
- 2021-07-08 CN CN202121551444.6U patent/CN215859321U/en active Active
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