Mask structure applied to truck and truck

Abstract

The mask structure comprises a mask, the mask is installed on the front portion of a truck head of the truck through a shifting mechanism, the mask is provided with a working position covering an inner cavity of the truck head and an avoiding position located below the inner cavity to open the inner cavity, and the mask is switched between the working position and the avoiding position through the shifting mechanism. When the mask is located at the avoiding position, the mask extends in the vertical direction and is close to the vehicle head. The mask structure comprises the mask and the shifting mechanism for installing the mask on the front portion of the vehicle head, the shifting mechanism can drive the mask to be switched between the working position and the avoiding position, and due to the fact that the mask extends in the vertical direction and is close to the vehicle head when located at the avoiding position, the mask can occupy the space of the front portion of the vehicle head to the minimum extent; an operator can stand on the front side of the vehicle head to overhaul and maintain components in the inner cavity of the vehicle head, and the mask is located below the inner cavity, so that the middle space and the upper space of the inner cavity cannot be interfered or hindered.

Description

Technical Field

[0001] The present application belongs to the technical field of automobile accessories, and specifically relates to a mask structure used for a truck and a truck. Background Art

[0002] The mask is a plate-like structure installed at the front end of the vehicle, the lower part of the windshield, and the upper part of the bumper. It mainly plays the role of shielding, protecting internal components, and filtering air. Existing masks used in trucks are mainly divided into the following two types: one is a fixed mask, which is fixedly connected to the front of the vehicle. When inspecting or replacing the components inside the front of the vehicle corresponding to the mask, the mask needs to be disassembled and then installed on the front of the vehicle after the inspection and maintenance work is completed. The whole operation process is very cumbersome. The other is a hinged flip mask, in which the mask is movably connected to the vehicle body through a rotating hinge, with the top of the mask as the rotating fulcrum, and the mask is flipped outward to open and close, eliminating the need to remove the mask. However, this method has the following problems: the hinged rotation method is structurally limited, and the rotation angle of the mask cannot exceed 90°, which causes great inconvenience for the inspection and maintenance of the truck, such as repair and maintenance of wipers, filling of oil in the brake oil tank, etc.; and the flipping of the mask will occupy the space in front of the vehicle, and the operator can only stand on the side of the mask to operate, further increasing the difficulty of operation; in addition, the hinged connection method requires that the seam line of the mask at the hinge must be a downward curved arc segment, that is, the curvature of the arc segment needs to be consistent with the curvature radius of the mask, otherwise it may affect the flipping of the mask and adversely affect the appearance of the vehicle. Summary of the invention

[0003] The present application provides a mask structure applied to a truck to solve at least one of the above-mentioned technical problems.

[0004] The technical solution adopted in this application is:

[0005] A mask structure applied to a truck includes a mask, which is installed at the front of the truck head through a shifting mechanism. The mask has a working position for covering an inner cavity of the truck head and a avoidance position located below the inner cavity to open the inner cavity. The mask is switched between the working position and the avoidance position through the shifting mechanism. When the mask is in the avoidance position, the mask extends in a vertical direction and is close to the truck head.

[0006] The mask structure for trucks described in this application also includes the following additional technical features:

[0007] The shifting mechanism includes a first rotating member and a second rotating member which are respectively hinged to the mask and the vehicle head. The mask, the first rotating member, the second rotating member and the vehicle head together form a parallel four-bar linkage mechanism, so that the mask can be switched between a working position and an avoidance position under the drive of the first rotating member and the second rotating member, and the mask remains extended in the vertical direction during the movement.

[0008] The first rotating member is provided with a first limiting portion, and the second rotating member is provided with a second limiting portion. The mask is locked in the avoidance position through the limiting cooperation between the first limiting portion and the second limiting portion.

[0009] The first limiting portion is provided with a first limiting groove, the second limiting portion is provided with a second limiting groove aligned with the first limiting groove, and the mask structure also includes a limiting plug shaft, which is passed through the first limiting groove and the second limiting groove to achieve limiting cooperation between the first limiting portion and the second limiting portion.

[0010] The first rotating member is provided with a first stop surface, and the second rotating member is provided with a second stop surface. When the mask switches from the avoidance position to the working position, the first stop surface and the second stop surface abut against each other to limit the mask to the working position.

[0011] The first rotating member is provided with a first inner groove facing the second rotating member, the second rotating member is provided with a second inner groove opposite to the first inner groove, the first stop surface is opened on the side of the first inner groove close to the vehicle front, and the second stop surface is opened on the side of the second inner groove close to the mask. When the mask is in the working position, at least a portion of the first rotating member is located inside the second inner groove, and at least a portion of the second rotating member is located inside the first inner groove, so that the first rotating member partially overlaps with the second rotating member.

[0012] The displacement mechanism also includes an elastic reset member, which can drive the mask to move from the avoidance position to the working position.

[0013] The elastic reset member is a spring, the first rotating member and the second rotating member are respectively provided with a first hanging ear and a second hanging ear which are opposite to each other, and two ends of the elastic reset member are respectively hung on the first hanging ear and the second hanging ear.

[0014] A first positioning plate extending vertically is provided on the side of the mask facing the front of the vehicle, a second positioning plate aligned with the first positioning plate is provided on the side of the front of the vehicle facing the mask, and the first rotating member and the second rotating member are hinged to the first positioning plate and the second positioning plate respectively.

[0015] The present application also provides a truck, including a front part, and also including a mask structure applied to the truck as described above, wherein the mask structure is installed on the front part.

[0016] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0017] 1. The mask structure of the present application includes a mask and a shifting mechanism for installing the mask on the front of the vehicle. The shifting mechanism can drive the mask to switch between the working position and the avoidance position. Since the mask extends in the vertical direction and is close to the vehicle head when in the avoidance position, the mask can occupy the space in the front of the vehicle head to the minimum extent; on the one hand, the operator can stand in front of the vehicle head to perform maintenance and other operations on the components in the inner cavity of the vehicle head, especially when filling the oil in the rotating oil pot in the vehicle head, the mask is located below the inner cavity, so it will not interfere with the middle and upper spaces of the inner cavity, and the operator can easily fill the oil into the oil filling port above the rotating oil pot; on the other hand, the requirements for the vehicle body maintenance space are reduced. For trucks, especially large trucks with a long wheelbase, due to the length of the vehicle body, the maintenance space of many indoor maintenance sites is relatively compact compared to trucks. Therefore, when the vehicle body is aligned with other maintenance equipment, the space in the front of the vehicle head may be relatively narrow, which has a certain impact on the opening of the mask. When the mask in the present application is opened, it is close to the front of the vehicle, which minimizes the occupation of the front space of the vehicle, thereby providing a larger working space for the operator and reducing the difficulty of operations such as maintenance of the vehicle front.

[0018] Similarly, the mask of the present application provides a larger space for the placement of maintenance equipment. The structural design of the mask in traditional technology uses the upper end as a fulcrum for flipping, which makes it impossible for large operating equipment to be operated at the front of the vehicle. The space at the front of the vehicle can only accommodate some equipment whose vertical height is lower than the mask. When the components in the inner cavity need to be repaired, replaced or other work that requires the assistance of large equipment to be completed, the mask needs to be removed before the operation can be carried out, and the mask will be assembled to the front of the vehicle after the operation is completed, which makes the operation process cumbersome and reduces the operating efficiency.

[0019] Secondly, the design of the mask being close to the front of the vehicle when the mask is in the avoidance position provides a clear field of vision for the user to intuitively observe the inner cavity environment, especially when the operator needs to use light to assist in observing the inner cavity environment under night vision conditions. Since the mask will not block the light source, the light source can be placed at any position in front of the front of the vehicle, and light exposure at any angle can provide the operator with a clear inner cavity field of vision, that is, the mask structure of the present application can effectively reduce the operator's requirements for the position of the light source when operating at night.

[0020] 2. As a preferred embodiment of the present application, by setting a first rotating member and a second rotating member, and cooperating with the vehicle head and the mask to form a parallel four-bar linkage, the mask is always kept vertical during the movement between the working position and the avoidance position, that is, the mask is always kept nearly parallel to the front face of the vehicle head during the movement; in this way, on the one hand, the occupation of the front space of the vehicle head caused by the flipping of the mask is avoided, thereby reducing the occupation demand for the space in front of the vehicle head; on the other hand, the first rotating member and the second rotating member drive the mask to make the movement process of the mask more flexible, and the traditional system is simple and convenient with a low failure rate; in addition, the first rotating member and the second rotating member drive the mask to move by rotating, which can reduce the friction resistance of the mask during the movement process, so that the operator can achieve the movement of the mask by applying a smaller force to the mask, thereby optimizing the user experience; furthermore, since the mask is always kept vertical during the movement, when the operator applies force to the mask to drive the mask to move, he can choose a certain position of the mask as the force application point without changing the force application point. For example, when the inner cavity is opened, the top of the mask can be used as the force point, and the mask can be pressed down to achieve the movement of the mask from the working position to the avoidance position. When the inner cavity is closed, the bottom of the mask can be selected as the force point, and the mask can be lifted up to achieve the switch from the avoidance position to the working position. That is, the mask can be moved in two directions only vertically downward or upward, which greatly reduces the difficulty of mask movement.

[0021] Furthermore, the switching of the mask between the working position and the avoidance position is driven by the first rotating member and the second rotating member. During the movement, the contact point between the mask and the front of the vehicle is not used as a fulcrum, thereby eliminating the restrictions on the structural form of the mask, so that the mask can be set into different forms according to various needs such as structure and aesthetics.

[0022] 3. As a preferred embodiment of the present application, by setting a first limit portion on the first rotating member and a second limit portion on the second rotating member, on the one hand, the mask can be temporarily locked in the avoidance position. When the operator places the mask in the avoidance position and operates on the inner cavity, there is no need to worry about the unstable position of the mask affecting the operator's work.

[0023] Furthermore, when the mask rotates to the avoidance position, the first limit groove is aligned with the second limit groove, and the operator can learn the position state of the mask by observing the alignment of the first limit groove and the second limit groove to avoid excessive movement of the mask. When the mask moves to the avoidance position, the limit plug shaft is inserted into the first limit groove and the second limit groove in sequence, so as to fix the mask in the avoidance position. Preferably, the limit plug shaft includes a fixing part and a carrying part, and the fixing part and the carrying part are arranged at an angle so that the fixing part is inserted into the first limit groove and the second limit groove, and then the carrying part is carried on the edge of the first limit groove or the second limit groove to prevent the limit plug shaft from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the lower vehicle head in one embodiment of the present application. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of the lower vehicle head in one embodiment of the present application. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the structure of the lower vehicle head in one embodiment of the present application. Figure 3 ;

[0028] Figure 4 This is a schematic diagram of the structure of the shifting mechanism in one embodiment of the present application. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the structure of the shifting mechanism in one embodiment of the present application. Figure 2 ;

[0030] Figure 6 This is a schematic diagram of the structure of the shifting mechanism in one embodiment of the present application. Figure 3 ;

[0031] Figure 7 This is a schematic diagram of the structure of the shifting mechanism in one embodiment of the present application. Figure 4 ;

[0032] in:

[0033] 1 mask, 11 first positioning plate;

[0034] 2 shifting mechanism;

[0035] 3 first rotating member, 31 first limiting portion, 32 first inner groove, 33 first hanging ear;

[0036] 4 second rotating member, 41 second limiting portion, 42 second inner groove, 43 second hanging ear;

[0037] 5 headstock, 51 second positioning plate;

[0038] 6 limit plug shaft;

[0039] 7. Elastic reset element. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0042] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0045] As an important component of the front of the vehicle, the mask mainly plays the role of shielding and protecting the inner cavity structure. However, traditional masks are usually fixed to the front of the vehicle or can only open the inner cavity by flipping, which brings many changes to the maintenance of the inner cavity.

[0046] The present application discloses a mask structure for use in trucks, such as Figures 1 to 7 As shown, the mask 1 includes a mask 1, which is installed at the front of the front of the truck 5 through a shifting mechanism 2. The mask 1 has a working position covering the inner cavity of the front 5 and a avoidance position located below the inner cavity to open the inner cavity. The mask 1 is switched between the working position and the avoidance position through the shifting mechanism 2. When the mask 1 is in the avoidance position, the mask 1 extends in the vertical direction and is close to the front 5.

[0047] in, Figure 1 The middle mask 1 is in the working position, Figure 2 The middle mask 1 is in a position between the working position and the avoidance position. Figure 3 The middle mask 1 is in the avoidance position.

[0048] The mask structure of the present application includes a mask 1 and a shifting mechanism 2 for mounting the mask 1 on the front of a vehicle head 5. The shifting mechanism 2 can drive the mask 1 to switch between a working position and an avoidance position. Since the mask 1 extends in the vertical direction and is close to the vehicle head 5 when in the avoidance position, the mask 1 can occupy the space in front of the vehicle head 5 to a minimum extent. On the one hand, an operator can stand in front of the vehicle head 5 to perform maintenance and other operations on the components in the inner cavity of the vehicle head 5. In particular, when filling the oil of the rotating oil pot in the vehicle head 5, the mask 1 is located below the inner cavity, so it will not interfere with the middle and upper spaces of the inner cavity. The operator can easily fill the oil into the oil filling port above the rotating oil pot. On the other hand, the requirements for the vehicle body maintenance space are reduced. For trucks, especially large trucks with a long wheelbase, due to the length of the vehicle body, the maintenance space of many indoor maintenance sites is relatively compact compared to trucks. Therefore, when the vehicle body is aligned with other maintenance equipment, the space in front of the vehicle head 5 may be relatively narrow, which has a certain impact on the opening of the mask 1. When the mask 1 in the present application is opened, it is close to the front of the vehicle 5, which minimizes the occupation of the front space of the front of the vehicle 5, thereby providing a larger working space for the operator and reducing the difficulty of operations such as maintenance of the front of the vehicle 5.

[0049] Similarly, the mask 1 of the present application provides a larger space for placing maintenance equipment. The structural design of the mask 1 in the traditional technology, which uses the upper end as a fulcrum for flipping, makes it impossible for large operating equipment to operate in front of the vehicle head 5. The space in front of the vehicle head 5 can only accommodate some equipment with a vertical height lower than the mask 1. When the components in the inner cavity need to be repaired, replaced or other work that requires the assistance of large equipment to be completed, the mask 1 needs to be removed before the operation can be carried out, and the mask 1 can be assembled to the vehicle head 5 after the operation is completed, which makes the operation process cumbersome and reduces the operating efficiency.

[0050] Secondly, the flip-up mask 1 in the prior art, when the inner cavity is opened, is abutted against the front of the vehicle 5 at the top, and then the mask 1 is flipped outward at an angle to the front of the vehicle 5, and the mask 1 blocks the sunlight, lamps and other light sources above to a considerable extent, and the light cannot be irradiated into the inner cavity from top to bottom or horizontally. The light source can only be placed at the bottom of the mask 1, so that the light covers the inner cavity from bottom to top, making the narrow operating space more compact; while in the present application, the design of the mask 1 abutting against the front of the vehicle 5 when the mask 1 is in the avoidance position provides a clear field of vision for the user to intuitively observe the inner cavity environment, especially when the operator needs to observe the inner cavity environment with the aid of light in the night vision state, because the mask 1 will not block the light source, the light source can be selected to be placed at any position in front of the front of the vehicle 5, and the light irradiation at any angle can provide the operator with a clear inner cavity field of vision, that is, the mask structure of the present application can effectively reduce the operator's requirements for the position of the light source when operating at night.

[0051] The mask 1 and the front of the vehicle 5 mentioned in the present application are close to each other, which means that the mask 1 is in contact with the front of the vehicle 5, or there is a distance D between the mask 1 and the front of the vehicle 5, D≤3cm. However, it should be pointed out that no matter what form of closeness is used, the distance between the mask 1 and the front of the vehicle 5 is roughly equal, that is, the mask 1 is roughly parallel to the front of the vehicle 5.

[0052] As a preferred embodiment of the present application, Figures 1 to 4 As shown, the shifting mechanism 2 includes a first rotating member 3 and a second rotating member 4 which are respectively hinged to the mask 1 and the vehicle head 5. The mask 1, the first rotating member 3, the second rotating member 4 and the vehicle head 5 together form a parallel four-bar linkage mechanism, so that the mask 1 can be switched between the working position and the avoidance position under the drive of the first rotating member 3 and the second rotating member 4, and the mask 1 remains vertical during the movement.

[0053] By providing the first rotating member 3 and the second rotating member 4, and cooperating with the vehicle head 5 and the mask 1 to form a parallel four-bar linkage, the mask 1 is always kept vertical during the movement between the working position and the avoidance position, that is, the mask 1 is always kept nearly parallel to the front face of the vehicle head 5 during the movement; in this way, on the one hand, the occupation of the front space of the vehicle head 5 caused by the flipping of the mask 1 is avoided, thereby reducing the occupation demand for the space in front of the vehicle head 5; on the other hand, the first rotating member 3 and the second rotating member 4 drive the mask 1 to make the movement process of the mask 1 more flexible, and the traditional system is simple and convenient with a low failure rate; in addition, the first rotating member 3 and the second rotating member 4 drive the mask 1 to move by rotating, which can reduce the friction resistance of the mask 1 during the movement process, so that the operator can apply a small force to the mask 1 to achieve the movement of the mask 1, thereby optimizing the user experience; furthermore, since the mask 1 is always kept vertical during the movement, when the operator applies force to the mask 1 to drive the mask 1 to move, a certain position of the mask 1 can be selected as the force application point without changing the force application point. For example, when the inner cavity is opened, the top of the mask 1 can be used as a force application point, and the mask 1 can be pressed downward to realize the movement of the mask 1 from the working position to the avoidance position. When the inner cavity is closed, the bottom of the mask 1 can be selected as a force application point, and the mask 1 can be lifted up to realize the switch from the avoidance position to the working position. That is, the mask 1 can be moved in two directions only vertically downward or upward, which greatly reduces the movement difficulty of the mask 1. Furthermore, the switch between the working position and the avoidance position of the mask 1 is driven by the first rotating member 3 and the second rotating member 4. During the movement, the contact point between the mask 1 and the vehicle head 5 is not used as a fulcrum, thus eliminating the restriction requirements on the structural form of the mask, so that the mask 1 can be set in different forms according to various needs such as structure and aesthetics.

[0054] Specifically, the parallel four-bar linkage under this embodiment means that during the movement of the mask 1, the first rotating member 3 and the second rotating member 4 are equal in length and remain approximately parallel, so that the connection points of the first rotating member 3 and the second rotating member 4 with the mask 1 are approximately coincident in the vertical direction, thereby ensuring the verticality of the mask 1, thereby achieving the approximate parallelism between the mask 1 and the front of the vehicle 5, thereby combining the mask 1, the first rotating member 3, the second rotating member 4, and the front of the vehicle 5 to form a parallel four-bar linkage with high transmission efficiency.

[0055] As a preferred embodiment of this implementation, Figure 5 As shown, the first rotating member 3 is provided with a first limiting portion 31, and the second rotating member 4 is provided with a second limiting portion 41, and the mask 1 is locked in the avoidance position through the limiting cooperation between the first limiting portion 31 and the second limiting portion 41.

[0056] By providing a first limiting portion 31 on the first rotating member 3 and a second limiting portion 41 on the second rotating member 4, on the one hand, the mask 1 can be temporarily locked in the avoidance position. When the operator places the mask 1 in the avoidance position and operates on the inner cavity, there is no need to worry about the unstable position of the mask 1 affecting the operator's work.

[0057] As a preferred example under this embodiment, a first limiting groove is provided on the first limiting portion 31, and a second limiting groove is provided on the second limiting portion 41 to be aligned with the first limiting groove. The mask structure further includes a limiting plug shaft 6, and the limiting plug shaft 6 is inserted through the first limiting groove and the second limiting groove to achieve the limiting cooperation between the first limiting portion 31 and the second limiting portion 41. When the mask 1 rotates to the avoidance position, the first limiting groove is aligned with the second limiting groove, and the operator can know the position state of the mask 1 by observing the alignment of the first limiting groove and the second limiting groove to avoid excessive movement of the mask 1. When the mask 1 moves to the avoidance position, the limiting plug shaft 6 is inserted into the first limiting groove and the second limiting groove in sequence, so as to fix the mask 1 in the avoidance position. Preferably, the limiting plug shaft 6 includes a fixing part and a carrying part, and the fixing part and the carrying part are arranged at an angle so that after the fixing part passes through the first limiting groove and the second limiting groove, the carrying part is carried on the edge of the first limiting groove or the second limiting groove to prevent the limiting plug shaft 6 from slipping.

[0058] Specifically, Figure 5 The first rotating member 3 and the second rotating member 4 correspond to the working positions of the mask 1, Figure 6 The first rotating member 3 and the second rotating member 4 correspond to the position where the mask 1 switches between the working position and the avoidance position. Figure 7 The first rotating member 3 and the second rotating member 4 correspond to the avoidance position of the mask 1.

[0059] As another preferred embodiment of this embodiment, the first rotating member 3 is provided with a first stop surface, and the second rotating member 4 is provided with a second stop surface. When the mask 1 switches from the avoidance position to the working position, the first stop surface and the second stop surface abut against each other to limit the mask 1 to the working position. By setting the first stop surface and the second stop surface, on the one hand, the movement trajectory of the mask 1 is restricted. When the mask 1 moves to the avoidance position, it cannot continue to move under the restriction of the first stop surface and the second stop surface, thereby avoiding the risk of damage caused by excessive movement of the mask 1 and then the excessive rotation angle of the first rotating member 3 and the second rotating member 4; on the other hand, the setting of the first stop surface and the second stop surface increases the stability of the relative locking of the first rotating member 3 and the second rotating member 4.

[0060] As a preferred example under this embodiment, Figure 5As shown, the first rotating member 3 is provided with a first inner groove 32 facing the second rotating member 4, the second rotating member 4 is provided with a second inner groove 42 opposite to the first inner groove 32, the first stop surface is provided on the side of the first inner groove 32 close to the vehicle head 5, and the second stop surface is provided with the side of the second inner groove 42 close to the mask 1. When the mask 1 is in the working position, at least part of the first rotating member 3 is located inside the second inner groove 42, and at least part of the second rotating member 4 is located inside the first inner groove 32, so that the first rotating member 3 and the second rotating member 4 partially overlap. By providing the first inner groove 32 and the second inner groove 42, when the mask 1 is in the avoidance position, the first inner groove 32 can accommodate part of the second rotating member 4, and the second inner groove 42 can accommodate part of the first rotating member 3, so that the first rotating member 3 and the second rotating member 4 are at least partially overlapped, and the rotation amplitude of the first rotating member 3 and the second rotating member 4 is increased, so that the mask 1 has a larger travel trajectory driven by the first rotating member 3 and the second rotating member 4. Thus, the distance between the mask 1 and the front of the vehicle 5 in the avoidance position is shortened, the close fit between the mask 1 and the front of the vehicle 5 is improved, and the occupation of the front space of the front of the vehicle 5 is further reduced. In addition, the first stop surface is provided in the first inner groove 32, and the second stop surface is provided in the second inner groove 42, so that the first inner groove 32 and the second inner groove 42 not only have the function of increasing the rotation angle of the first rotating member 3 and the second rotating member 4, but also further integrate the function of providing the first stop surface and the second stop surface for the first rotating member 3 and the second rotating member 4, so that the functions are further integrated, and the structural design of the mask structure is optimized.

[0061] As another preferred embodiment of this embodiment, Figure 4 , Figure 6 , Figure 7 As shown, the displacement mechanism 2 further includes an elastic reset member 7, and the elastic reset member 7 can drive the mask 1 to move from the avoidance position to the working position.

[0062] By setting the elastic reset member 7, when the operator needs to move the mask 1 to the working position after completing the operation, the first rotating member 3 and the second rotating member 4 can rotate under the elastic force of the elastic reset member 7 to drive the mask 1 to move. The operator does not need to apply force to the mask 1 to achieve the switching of the mask 1 from the avoidance position to the working position.

[0063] Preferably, if Figure 7As shown, the elastic reset member 7 is a spring, and the first rotating member 3 and the second rotating member 4 are respectively provided with a first hanging ear 33 and a second hanging ear 43 in a relative position, and the two ends of the elastic reset member 7 are respectively hung on the first hanging ear 33 and the second hanging ear 43. Setting the elastic reset member 7 as a spring has the advantages of simple structure and simplified design; the first hanging ear 33 and the second hanging ear 43 are arranged in a relative position on the first rotating member 3 and the second rotating member 4, on the one hand, a mounting position is provided for the spring, and on the other hand, the relative position of the first hanging ear 33 and the second hanging ear 43 provides a guide for the extension direction of the spring, thereby providing a guide for the elastic force feedback of the spring to the first rotating member 3 and the second rotating member 4, and improving the action accuracy of the spring on the first rotating member 3 and the second rotating member 4.

[0064] As another preferred embodiment of this embodiment, Figure 7 As shown in (right 9), the side of the mask 1 facing the front of the vehicle 5 is provided with a first positioning plate 11 extending vertically, the side of the front of the vehicle 5 facing the mask 1 is provided with a second positioning plate 51 aligned with the first positioning plate 11, and the first rotating member 3 and the second rotating member 4 are respectively hinged to the first positioning plate 11 and the second positioning plate 51. By providing the first positioning plate 11 and the second positioning plate 51, on the one hand, a mounting position is provided for the first rotating member 3 and the second rotating member 4, and on the other hand, the force bearing area of ​​the connection between the first rotating plate and the second rotating plate and the mask 1 and the front of the vehicle 5 is increased, thereby avoiding the occurrence of stress concentration.

[0065] Preferably, the number of the first rotating members 3 and the number of the second rotating members 4 are both two, which are symmetrically distributed at both ends of the mask 1 in the horizontal direction.

[0066] The present application also provides a truck, including a front 5, and also including the mask structure applied to the truck as described above, wherein the mask structure is installed on the front 5. The truck mask structure of the present application is simple in design, and the mask 1 can be opened relatively easily, and the mask 1 occupies a small space, thereby reducing the demand for operating space.

[0067] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0068] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0069] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A mask structure applied to a truck, characterized in that: The invention comprises a mask, which is installed at the front of the front of the truck through a shifting mechanism. The mask has a working position for covering the inner cavity of the front of the truck and a avoidance position for being located below the inner cavity to open the inner cavity. The mask is switched between the working position and the avoidance position through the shifting mechanism. When the mask is in the avoidance position, the mask extends in the vertical direction and is close to the front of the truck.

2. The mask structure for trucks according to claim 1, characterized in that: The shifting mechanism includes a first rotating member and a second rotating member which are respectively hinged to the mask and the vehicle head. The mask, the first rotating member, the second rotating member and the vehicle head together form a parallel four-bar linkage mechanism, so that the mask can be switched between a working position and an avoidance position under the drive of the first rotating member and the second rotating member, and the mask remains vertical during the movement.

3. The mask structure for trucks according to claim 2, characterized in that: The first rotating member is provided with a first limiting portion, and the second rotating member is provided with a second limiting portion, and the mask is locked in the avoidance position through the limiting cooperation between the first limiting portion and the second limiting portion.

4. The mask structure for trucks according to claim 3, characterized in that: The first limiting portion is provided with a first limiting groove, the second limiting portion is provided with a second limiting groove aligned with the first limiting groove, and the mask structure also includes a limiting plug shaft, which is passed through the first limiting groove and the second limiting groove to achieve limiting cooperation between the first limiting portion and the second limiting portion.

5. The mask structure for trucks according to claim 2, characterized in that: The first rotating member is provided with a first stop surface, and the second rotating member is provided with a second stop surface. When the mask switches from the avoidance position to the working position, the first stop surface and the second stop surface abut against each other to limit the mask to the working position.

6. The mask structure for trucks according to claim 5, characterized in that: The first rotating member is provided with a first inner groove facing the second rotating member, the second rotating member is provided with a second inner groove opposite to the first inner groove, the first stop surface is opened on the side of the first inner groove close to the vehicle front, and the second stop surface is opened on the side of the second inner groove close to the mask. When the mask is in the working position, at least a portion of the first rotating member is located inside the second inner groove, and at least a portion of the second rotating member is located inside the first inner groove, so that the first rotating member partially overlaps with the second rotating member.

7. The mask structure for trucks according to claim 2, characterized in that: The displacement mechanism also includes an elastic reset member, which can drive the mask to move from the avoidance position to the working position.

8. The mask structure for trucks according to claim 7, characterized in that: The elastic reset member is a spring, the first rotating member and the second rotating member are respectively provided with a first hanging ear and a second hanging ear which are opposite to each other, and two ends of the elastic reset member are respectively hung on the first hanging ear and the second hanging ear.

9. The mask structure for trucks according to claim 2, characterized in that: A first positioning plate extending vertically is provided on the side of the mask facing the front of the vehicle, a second positioning plate aligned with the first positioning plate is provided on the side of the front of the vehicle facing the mask, and the first rotating member and the second rotating member are hinged to the first positioning plate and the second positioning plate respectively.

10. A truck, comprising a front end, characterized in that: It also includes a mask structure applied to a truck as described in any one of claims 1 to 9, wherein the mask structure is installed on the front of the vehicle.

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