A commercial vehicle front mask structure

Abstract

The application discloses a front cover structure of a commercial vehicle, and belongs to the technical field of front covers.The front cover structure comprises a cover body, a front extension mechanism and a lifting mechanism.The lifting mechanism comprises a lifting mechanism decoration cover, a lifting drive motor and two lifting modules, and the lifting modules are connected with the cover body.The front extension mechanism comprises a front extension drive motor and two fixed seats.The fixed seats are connected with connecting seats which are connected with the lifting mechanism decoration cover through connecting rods arranged in parallel from top to bottom.A rotating shaft is arranged on each fixed seat, a driving swing rod is arranged on the rotating shaft, a supporting rod is arranged on each connecting rod, and the supporting rod is rotatably connected with the driving swing rod.The output end of the front extension drive motor is connected with the rotating shaft.The front extension mechanism is used for realizing the front extension action of the lifting mechanism and the cover body, the lifting mechanism is used for realizing the convenient lifting and opening of the cover body, there is no sweeping action, the requirement for the space in the front part of the cover body is small, the limitation of the opening of the cover body is avoided, the knocking accidents caused by the opening of the cover body are effectively avoided, and the safety is good.

Description

Technical Field

[0001] This invention belongs to the field of front cover technology, specifically a front cover structure for commercial vehicles. Background Technology

[0002] As a component unique to commercial vehicles, the front grille serves a similar function to the hood and grille of passenger cars, primarily providing aesthetic appeal and air filtration. Due to the maintenance needs of the internal components, the front grille requires an opening mechanism.

[0003] Traditionally, front hoods open using a hinged rotation mechanism. The hood is connected to the front of the commercial vehicle's cab via a hinge, and during opening, it rotates around the hinge axis, being held up manually or by a gas spring strut. However, this method results in a large tilting angle, leading to a large sweeping area. This not only requires ample space for opening the hood but also increases the risk of injury to nearby workers. Summary of the Invention

[0004] To address the problems of traditional front cover opening mechanisms that use a hinged rotation, resulting in a large front cover rotation angle and a large sweeping area, which not only requires a large opening space for the front cover but also easily causes injury to nearby workers, this invention provides a front cover structure for commercial vehicles.

[0005] This invention is achieved through the following technical solution:

[0006] A front grille structure for a commercial vehicle includes a grille body, a forward extension mechanism, and a lifting mechanism. The lifting mechanism includes a lifting mechanism decorative cover, a lifting drive motor, and two lifting modules. The two lifting modules are positioned on the left and right sides of the rear of the lifting mechanism decorative cover. The output end of the lifting drive motor is respectively connected to the two lifting modules. The lifting modules are connected to the grille body via a grille mounting bracket. The forward extension mechanism includes a forward extension drive motor that can be connected to the front of the cab and two left and right fixed seats. The fixed seats are connected to a connecting seat that is connected to the lifting mechanism decorative cover via vertically parallel connecting rods. A rotating shaft is rotatably mounted on the fixed seats, and a drive swing rod is mounted on the rotating shaft. A support rod is rotatably connected to a connecting rod, and the support rod is rotatably connected to the drive swing rod. The output end of the forward extension drive motor is connected to the rotating shaft.

[0007] A further improvement of the present invention is that the support rod is connected and installed with the upper connecting rod.

[0008] Further improvements of the present application also have, the driving swing rod is further provided with abutting limiting portion;Supporting rod is rotatably connected with connecting rod through first pin shaft, supporting rod is rotatably connected with driving swing rod through second pin shaft;Driving swing rod is driven to rotate by front extension driving motor, when second pin shaft is upwardly beyond the line of first pin shaft, abutting limiting portion is abutted with fixed seat, and front extension mechanism realizes self-locking.

[0009] Further improvements of the present application also have, the fixed seat is the open slot steel structure to front, fixed seat web plate is positioned and installed with cab front wall, and fixed seat wing plate is rotatably connected with connecting rod rear end.

[0010] Further improvements of the present application also have, the connecting seat is the open slot steel structure to rear, connecting seat web plate is positioned and installed with lifting mechanism cover, and connecting seat wing plate is rotatably connected with connecting rod front end.

[0011] Further improvements of the present application also have, connecting rod rear end rotatably connected installation is in fixed seat wing plate inner side, and connecting rod front end rotatably connected installation is in connecting seat wing plate outer side.

[0012] Further improvements of the present application also have, lifting module includes worm, worm wheel, intermediate gear and vertical rack from inside to outside in turn, and face shield fixing frame is installed on the both ends of rack.

[0013] Further improvements of the present application also have, face shield body includes riveted face shield outer plate and face shield inner plate, and face shield inner plate rear side is riveted with installation reinforcing plate connected with face shield fixing frame.

[0014] Further improvements of the present application also have, face shield inner plate rear side middle part upper and lower sides are respectively riveted with support upper lining plate and support lower lining plate;Vertical slide rail is installed between support upper lining plate and support lower lining plate, and lifting mechanism cover front side middle part is installed with sliding block slidingly matched with slide rail.

[0015] Further improvements of the present application also have, face shield outer plate adopts aluminum plate material, and its upper part is provided with several horizontal strip-shaped reinforcing protrusions.

[0016] From the above technical scheme, the beneficial effects of the present application are:

[0017] Through front extension driving motor in front extension mechanism driving swing rod driving rotation, thereby driving connecting rod through supporting rod, realize the front extension action of lifting mechanism and face shield body, then realize the lifting action of face shield body through lifting driving motor of lifting mechanism driving lifting module, so that the convenient opening of face shield body can be realized.The overall structure is simple, convenient to use, and good in practicality, the face shield body is opened only after a small distance of front extension, and then is opened by lifting, without sweeping action, the requirement for front space of face shield body opening is smaller, avoids the limitation of face shield body opening, and effectively avoids the knocking accident of face shield body opening, and good in safety. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the front part of the mask body according to a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the rear part of the mask body according to a specific embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the extension mechanism structure according to a specific embodiment of the present invention.

[0023] Figure 5 This is a cross-sectional structural diagram of the extension mechanism according to a specific embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the lifting mechanism structure according to a specific embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the transmission principle of the lifting mechanism according to a specific embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the closed state of the mask body according to a specific embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the mask body in the forward-extended state according to a specific embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of the mask body in the open state according to a specific embodiment of the present invention.

[0029] In the attached diagram: 100, mask body; 101, mask outer plate; 102, mask inner plate; 103, mounting reinforcing plate; 104, supporting upper liner; 105, supporting lower liner; 106, reinforcing protrusion; 200, forward extension mechanism; 201, forward extension drive motor; 202, forward extension drive shaft; 203, fixed seat; 204, connecting rod; 205, connecting seat; 206, drive swing arm; 207, support rod; 208, rotating shaft; 209, abutment limiting part; 300, lifting mechanism; 301, lifting drive motor; 302, lifting module; 303, lifting module fixing frame; 304, mask fixing frame; 305, lifting mechanism decorative cover; 306, worm gear; 307, worm wheel; 308, rack; 309, intermediate gear. Detailed Implementation

[0030] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0031] like Figure 1 , 4 As shown in Figures 5, 6, and 7, an optional embodiment of the present invention discloses a front grille structure for a commercial vehicle, including a grille body 100, a forward extension mechanism 200, and a lifting mechanism 300. The lifting mechanism 300 includes a lifting mechanism decorative cover 305, a lifting drive motor 301, and two lifting modules 302. The two lifting modules 302 are respectively positioned and installed on the left and right sides of the rear of the lifting mechanism decorative cover 305 via lifting module fixing brackets 303. The left and right dual output ends of the lifting drive motor 301 are respectively connected to the two lifting modules 302. The lifting modules 302 are connected to the grille fixing bracket 304. The mask body 100 is connected and installed; the forward extension mechanism 200 includes a forward extension drive motor 201 that can be connected and installed with the front of the cab and two left and right fixed seats 203. The fixed seats 203 are connected to the connecting seat 205, which is connected and installed with the decorative cover 305 of the lifting mechanism, through the vertically parallel connecting rod 204. A rotating shaft 208 is rotatably installed on the fixed seat 203. A drive swing rod 206 is installed on the rotating shaft 208. A support rod 207 is rotatably connected to the connecting rod 204. The support rod 207 is rotatably connected to the drive swing rod 206; the output end of the forward extension drive motor 201 is connected to the rotating shaft 208.

[0032] When the mask body 100 is opened, the driving swing rod 206 is driven to rotate by the forward extension driving motor 201 in the forward extension mechanism 200, so that the connecting rod 204 is driven to rotate through the support rod 207, the forward extension action of the lifting mechanism 300 and the mask body 100 is realized, and then the lifting action of the mask body 100 is realized by the lifting driving motor 301 of the lifting mechanism 300 driving the lifting module 302, so that the mask body 100 can be conveniently opened. The overall structure is simple, convenient to use, good in practicability, the mask body 100 is opened only after being forwardly extended by a small distance, then being lifted and opened, there is no sweeping action, the opening of the front part of the mask body 100 requires smaller space, the limitation of the opening of the mask body 100 is avoided, the knocking accident of the opening of the mask body 100 is effectively avoided, and the safety is good.

[0033] The output shaft of the forward extension driving motor 201 is connected with the rotating shaft 208 through the forward extension driving shaft 202, the output shaft of the forward extension driving motor 201, the forward extension driving shaft 202 and the rotating shaft 208 are in an integrated structure, and are fixedly installed with the driving swing rod 206 and rotatably installed with the fixed seat 203.

[0034] As shown in Figures 4-5 The support rod 207 is connected and installed with the upper connecting rod 204. The rotating shaft 208 is rotatably installed at the middle position of the fixed seat 203. Through the driving of the driving swing rod 206, when the driving swing rod 206 and the support rod 207 are on the same straight line, the mask body 100 is in a completely forwardly extended state.

[0035] In another optional embodiment of the application, a commercial vehicle front mask structure is disclosed, which comprises a mask body 100, a forward extension mechanism 200 and a lifting mechanism 300. The lifting mechanism 300 comprises a lifting mechanism decorative cover 305, a lifting driving motor 301 and two lifting modules 302. The two lifting modules 302 are positioned and installed on the left and right sides of the rear part of the lifting mechanism decorative cover 305 through the lifting module fixing frame 303. The left and right double output ends of the lifting driving motor 301 are respectively in transmission connection with the two lifting modules 302. The lifting module 302 is connected and installed with the mask body 100 through the mask fixing frame 304. The forward extension mechanism 200 comprises a forward extension driving motor 201 capable of being connected and installed with the cab front wall and two fixed seats 203. The fixed seat 203 is connected with the connecting seat 205 connected and installed with the lifting mechanism decorative cover 305 through the connecting rod 204 arranged in parallel from top to bottom. The rotating shaft 208 is rotatably installed on the fixed seat 203. The driving swing rod 206 is installed on the rotating shaft 208. The support rod 207 is rotatably connected with the driving swing rod 206 on the connecting rod 204. The output end of the forward extension driving motor 201 is connected with the rotating shaft 208. As shown in Figure 5As shown, the driving swing rod 206 is further provided with an abutting limiting part 209; the support rod 207 is rotatably connected with the connecting rod 204 through a first pin shaft, and rotatably connected with the driving swing rod 206 through a second pin shaft; the driving swing rod 206 is driven to rotate by the front extension driving motor 201, and when the second pin shaft passes the line connecting the first pin shaft and the rotation shaft 208 upward, the abutting limiting part 209 abuts against the fixed seat 203, i.e. the front extension mechanism 200 realizes the locking of the dead point position, thereby ensuring the reliable stability of the front extension support of the face shield body 100.

[0036] As shown in Figure 1 , 4 , 5, the fixed seat 203 is a groove steel structure with an opening forward, the web of the fixed seat 203 is positioned and installed with the cab front wall, and the wing plate of the fixed seat 203 is rotatably connected with the rear end of the connecting rod 204. The connecting seat 205 is a groove steel structure with an opening backward, the web of the connecting seat 205 is positioned and installed with the lifting mechanism cover 305, and the wing plate of the connecting seat 205 is rotatably connected with the front end of the connecting rod 204. And the fixed seat 203 and the connecting seat 205 on each side correspond to two groups of connecting rods 204 and two groups of driving swing rods 206 and support rods 207 on the left and right, and each group is connected and installed with the two wing plates of the fixed seat 203 (the connecting seat 205). This effectively ensures the stability and reliability of the front extension action of the front extension mechanism 200 to the face shield body 100.

[0037] Further, as shown in Figure 5 , when the second pin shaft passes the line connecting the first pin shaft and the rotation shaft 208 upward, the abutting limiting part 209 abuts against the front side of the web of the fixed seat 203, and the front side of the web of the fixed seat 203 is covered with a rubber protective layer, which effectively protects the abutting limiting part 209 from wear and tear.

[0038] Further, the rear end of the connecting rod 204 is rotatably connected and installed inside the wing plate of the fixed seat 203, and the front end of the connecting rod 204 is rotatably connected and installed outside the wing plate of the connecting seat 205. This ensures the reliable stability of the action of the connecting rod 204.

[0039] As shown in Figures 6-7 , the lifting module 302 includes a worm 306, a worm gear 307, an intermediate gear 309 and a vertical rack 308 engaged in sequence from inside to outside, and the face shield fixed frame 304 is installed on the upper and lower ends of the rack 308. The worm 306 is driven by the left and right double output ends of the lifting driving motor 301, thereby realizing the lifting drive of the rack 308 through the worm gear 307 and the intermediate gear 309, so as to realize the lifting and opening of the face shield body 100, and the convenience of opening the face shield body 100; and the worm and gear transmission structure can realize the stability of transmission, and can realize the automatic hovering of the face shield body 100, and has a self-locking function.

[0040] As shown in Figures 1-3As shown, the mask body 100 includes a riveted mask outer plate 101 and a mask inner plate 102, and the rear side of the mask inner plate 102 is riveted with a mounting reinforcing plate 103 connected and mounted with the mask fixing frame 304. By connecting and mounting the mounting reinforcing plate 103 with the mask fixing frame 304, the reliability of the connection between the mask body 100 and the lifting mechanism 300 is realized.

[0041] Further, the upper and lower sides of the middle part of the rear side of the mask inner plate 102 are respectively riveted with a support upper lining plate 104 and a support lower lining plate 105; a vertical slide rail is mounted between the support upper lining plate 104 and the support lower lining plate 105, and a sliding block that is in sliding cooperation with the slide rail is mounted on the front middle part of the lifting mechanism cover 305. By cooperating the sliding block with the slide rail, the vertical guidance of the mask body 100 relative to the lifting mechanism 300 is realized, and the accuracy and stability of the lifting action of the mask body 100 are ensured.

[0042] Among them, the mask outer plate 101 adopts an aluminum plate with a thickness of 1.0mm, and a plurality of transverse strip-shaped reinforcing protrusions 106 are formed on the upper part of the metal plate, which has lighter weight and better structural strength, realizing the lightweight design of the front mask.

[0043] The front mask structure of the commercial vehicle realizes the forward stretching action of the lifting mechanism 300 and the mask body 100 through the forward stretching drive motor 201 in the forward stretching mechanism 200 to drive the driving swing rod 206 to rotate, thereby driving the connecting rod 204 to rotate through the support rod 207, and realizes the lifting action of the mask body 100 through the lifting drive motor 301 of the lifting mechanism 300 to drive the lifting module 302 to realize the lifting action of the mask body 100, so that the convenient opening of the mask body 100 can be realized. The overall structure is simple, convenient to use, and good in practicality. The mask body 100 is only opened after being stretched forward by a small distance, and then lifted to open, without sweeping action. The opening of the mask body 100 requires less space in the front part, avoids the limitation of the opening of the mask body 100, and effectively avoids the knocking accident of the opening of the mask body 100, which is good in safety.

[0044] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other.

[0045] In the specification and claims of the present application and the above-mentioned drawings, the terms "upper", "lower", "outer side", "inner side" and the like, if any, are used to distinguish the relative relationship in position, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A front grille structure for a commercial vehicle, characterized in that, The device includes a mask body (100), a forward extension mechanism (200), and a lifting mechanism (300). The lifting mechanism (300) includes a lifting mechanism decorative cover (305), a lifting drive motor (301), and two lifting modules (302). The two lifting modules (302) are positioned on the left and right sides of the rear of the lifting mechanism decorative cover (305). The output end of the lifting drive motor (301) is connected to the two lifting modules (302) respectively. The lifting modules (302) are connected to the mask body (100) through a mask fixing bracket (304). The forward extension mechanism (200) includes a mechanism that can communicate with the driver. The front extension drive motor (201) and two fixed seats (203) are connected and installed in the front of the cab. The fixed seats (203) are connected to the connecting seat (205) which is connected and installed in the decorative cover (305) of the lifting mechanism through the connecting rod (204) arranged in parallel. A rotating shaft (208) is rotatably installed on the fixed seat (203). A drive swing rod (206) is installed on the rotating shaft (208). A support rod (207) is rotatably connected to a connecting rod (204). The support rod (207) is rotatably connected to the drive swing rod (206). The output end of the front extension drive motor (201) is connected to the rotating shaft (208).

2. The commercial vehicle front grille structure according to claim 1, characterized in that, The support rod (207) is connected and installed with the upper connecting rod (204).

3. The commercial vehicle front grille structure according to claim 2, characterized in that, The drive rocker arm (206) is also provided with an abutment limiting part (209); the support rod (207) is rotatably connected to the connecting rod (204) through the first pin, and the support rod (207) is rotatably connected to the drive rocker arm (206) through the second pin; the drive rocker arm (206) is driven to rotate by the forward extension drive motor (201), and when the second pin passes upward through the line connecting the rotating shaft (208) and the first pin, the abutment limiting part (209) abuts and limits with the fixed seat (203), and the forward extension mechanism (200) achieves self-locking.

4. The commercial vehicle front grille structure according to claim 1, characterized in that, The fixed seat (203) is a channel steel structure with an opening facing forward. The web of the fixed seat (203) is positioned and installed with the front of the cab. The wing plate of the fixed seat (203) is rotatably connected to the rear end of the connecting rod (204).

5. The commercial vehicle front grille structure according to claim 4, characterized in that, The connecting seat (205) is a channel steel structure with the opening facing backward. The web of the connecting seat (205) is positioned and installed with the decorative cover (305) of the lifting mechanism. The wing plate of the connecting seat (205) is rotatably connected to the front end of the connecting rod (204).

6. The commercial vehicle front grille structure according to claim 5, characterized in that, The rear end of the connecting rod (204) is rotatably connected to the inner side of the wing plate of the fixed seat (203), and the front end of the connecting rod (204) is rotatably connected to the outer side of the wing plate of the connecting seat (205).

7. The commercial vehicle front grille structure according to claim 1, characterized in that, The lifting module (302) includes a worm (306), a worm wheel (307), an intermediate gear (309), and a vertical rack (308) that mesh sequentially from the inside to the outside. The mask fixing bracket (304) is installed at the upper and lower ends of the rack (308).

8. The commercial vehicle front grille structure according to claim 1, characterized in that, The mask body (100) includes a mask outer plate (101) and a mask inner plate (102) that are riveted together. A mounting reinforcement plate (103) that is riveted to the rear side of the mask inner plate (102) and connected to the mask fixing frame (304) is installed.

9. The commercial vehicle front grille structure according to claim 8, characterized in that, The upper support plate (104) and the lower support plate (105) are riveted to the upper and lower sides of the rear middle of the inner panel (102) of the mask respectively; a vertical slide rail is installed between the upper support plate (104) and the lower support plate (105); a slider that slides with the slide rail is installed in the middle of the front side of the decorative cover (305) of the lifting mechanism.

10. The commercial vehicle front grille structure according to claim 8, characterized in that, The outer panel (101) of the mask is made of aluminum plate, and its upper part is provided with several horizontal strip-shaped reinforcing protrusions (106).

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