Liftable cover plate device of automobile front cabin

Abstract

The utility model discloses a liftable front cabin cover plate device of an automobile. The liftable front cabin cover plate device comprises a mounting foundation, a front cabin cover plate and a cover plate lifting mechanism, wherein the front cabin cover plate is arranged on the mounting foundation in a manner that the whole front cabin cover plate can be driven to lift vertically; the cover plate lifting mechanism is arranged on the mounting foundation and is used for completing vertical lifting of the front cabin cover plate; after the front cabin cover plate is lifted, an air flow channel communicated in the front-back direction of the vehicle body is formed; a front cabin cover plate of a traditional automobile is designed to be of a structure capable of vertically ascending and descending, in the driving process, ascending of the front cabin cover plate can be actively controlled, heat dissipation of a front cabin of the automobile can be improved through an air flow channel formed after the front cabin cover plate is ascended, and therefore the driving requirement under the hot working condition is met; due to the fact that the front cabin cover plate is of a vertical lifting structure, control over the lifting height is facilitated, and driving safety cannot be affected under the condition that the lifting distance is not large. And meanwhile, the height position of the front cabin cover plate is raised after the front cabin cover plate is raised, and pedestrian protection during collision is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile component structure design, and in particular relates to a liftable front engine compartment cover device for an automobile. Background Art

[0002] The front engine cover of a car, also known as the hood, plays a good protective role for the components in the front engine compartment of the car, and can also play a partial supporting role when a pedestrian collision occurs. It is one of the important parts of the car. The engine cover of a traditional car is usually hinged to the body at the rear end, and locked to the body at the front end through a cover lock. The engine cover can only be opened in a flip-up manner. In the hot summer, the engine and other parts often overheat due to insufficient heat dissipation during the driving process of the car. Since the existing engine cover can only be opened in a flip-up manner, it will have a great impact on the driving vision after opening. Therefore, it is usually not opened during driving. The engine cover can only be opened after parking to dissipate heat in the cabin, which is not conducive to the heat dissipation of the engine and other parts in the cabin in hot weather. In addition, for pedestrian protection, it is usually hoped that the engine cover is as high as possible, so as to reduce the bending amount of the pedestrian's thigh during the collision. However, the height position of the existing engine cover is fixed, which is not conducive to pedestrian protection when a collision occurs. At the same time, therefore, it is urgent to provide a front engine cover device that can be beneficial to the heat dissipation of the components in the front engine compartment and pedestrian protection. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a liftable front engine compartment cover device for an automobile, which can facilitate heat dissipation of components in the engine compartment and protection of pedestrians by controlling the lifting and lowering of the front engine compartment cover.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liftable front engine compartment cover device for a car, comprising a mounting base, a front engine compartment cover arranged on the mounting base in a manner that can be driven vertically to be lifted as a whole, and a cover lifting mechanism arranged on the mounting base for the front engine compartment cover to complete the vertical lifting; after the front engine compartment cover is raised, an air flow channel is formed between the front engine compartment cover and the vehicle body along the front and rear direction of the vehicle body.

[0005] Furthermore, the cover lifting mechanism includes four lifting struts installed on the installation base and respectively connected to the four corners of the front cabin cover, and a driving component installed on the installation base for driving the lifting struts to move up and down.

[0006] Furthermore, the mounting base includes a vehicle body connecting seat conformably arranged to the hatch on the top of the front engine room of the vehicle, the lifting strut is a lead screw, and the cover lifting mechanism also includes four lead screw nut sleeves respectively installed on the four lifting struts corresponding to the outer sleeves, and the lead screw nut sleeves are rotatably installed on the vehicle body connecting seat; the driving assembly includes a driving motor and a transmission assembly, and the driving motor is transmission-connected to any one of the four lead screw nut sleeves through the transmission assembly, and the cover lifting mechanism also includes a synchronous belt transmission-connected to the four lead screw nut sleeves for driving the four lead screw nut sleeves to rotate synchronously.

[0007] Furthermore, the drive motor is fixedly installed at the bottom of the vehicle body connecting seat, and the transmission assembly includes an active bevel gear drivingly connected to the end of the output shaft of the drive motor and a driven bevel gear meshing with the active bevel gear, and a coaxial tube; the driven bevel gear is coaxially arranged with the screw nut sleeve at the corresponding position and is transmission-connected to the screw nut sleeve through the coaxial tube.

[0008] Furthermore, the screw is provided with an anti-rotation slide groove arranged along the length direction of the screw, and the cover lifting mechanism also includes an anti-rotation seat installed on the body connecting seat, and the anti-rotation seat is provided with a limiting slider slidably connected to the anti-rotation slide groove.

[0009] Furthermore, both ends of the anti-rotation slide groove in the length direction do not penetrate the end portion of the lead screw.

[0010] Furthermore, the anti-rotation seat includes an L-shaped connection bracket fixed to the bottom of the vehicle body connection seat and a limiting sleeve fixed to the L-shaped connection bracket, the limiting sleeve is movably outer-mounted on the lead screw, and the limiting slider is formed in the limiting sleeve.

[0011] Furthermore, the vehicle body connecting seat is provided with a mounting groove with a top opening, the lead screw nut sleeve and the synchronous belt are arranged in the mounting groove, and the mounting base also includes a mounting groove sealing plate covering the mounting groove.

[0012] Furthermore, the two corners of the front engine cover plate close to the rear of the vehicle body are hinged to the two lifting struts at the corresponding positions; the two corners of the front engine cover plate close to the front of the vehicle body are fixed with plug-in sleeves, the plug-in sleeves are plugged into the tops of the lifting struts at the corresponding positions, and the plug-in sleeves are provided with locking components for locking the plug-in sleeves with the lifting struts at the corresponding positions.

[0013] Furthermore, the locking assembly includes a locking sleeve fixed on the outer wall of the plug-in sleeve, a locking rod movably sleeved in the locking sleeve, and a reset spring arranged in the locking sleeve for resetting the locking rod. A locking hole is provided on the outer wall of the top of the lifting support rod corresponding to the plug-in sleeve, and one end of the locking rod is inserted into the locking hole; the locking sleeve is also provided with a locking rod limiting portion for preventing the locking rod from rebounding.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a liftable front engine compartment cover device for a vehicle. By designing the front engine compartment cover of a traditional vehicle as a vertically liftable structure, the lifting of the front engine compartment cover can be actively controlled during driving. The air flow channel formed after the front engine compartment cover is lifted can help improve the heat dissipation of the front engine compartment of the vehicle, thereby meeting the driving needs under hot working conditions. Since the front engine compartment cover is a vertically liftable structure, it is convenient to control the lifting height, and will not affect the driving safety when the lifting distance is not large. At the same time, the height position of the front engine compartment cover is increased after lifting, which is beneficial to the protection of pedestrians when a collision occurs.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model installed on the vehicle body

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model

[0019] Figure 3 for Figure 2 A partial enlarged view of point D in the middle

[0020] Figure 4 for Figure 2 Schematic diagram of the structure after removing the installation slot cover

[0021] Figure 5 This is a cross-sectional structural diagram of the utility model

[0022] Figure 6 for Figure 5 A partial enlarged view of the center

[0023] Figure 7 for Figure 5 A partial enlarged view of point B in the middle

[0024] Figure 8 for Figure 5 A partial enlarged view of the center C

[0025] Figure markings: 1-installation base; 101-body connecting seat; 101a-installation groove; 102-installation groove sealing plate; 2-front engine compartment cover; 201-plug sleeve; 202-locking assembly; 202a-locking sleeve; 202b-locking rod; 202c-reset spring; 202d-locking rod limiter; 3-lifting support rod; 3a-anti-rotation slide groove; 3b-locking hole; 4-driving assembly; 401-driving motor; 402-transmission assembly; 402a-active bevel gear; 402b-driven bevel gear; 402c-coaxial tube; 5-screw nut sleeve; 501-outer gear ring; 502-upper sliding bearing; 503-lower sliding bearing; 6-synchronous belt; 7-anti-rotation seat; 7a-limiting slider; 701-L-type connecting bracket; 702-limiting sleeve; 8-body main body. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other without conflict.

[0027] See also Figure 1-8 , the present embodiment discloses a liftable front engine compartment cover device for an automobile, comprising a mounting base 1, a front engine compartment cover 2 arranged on the mounting base 1 in a manner that the entire cover can be driven to be lifted vertically, and a cover lifting mechanism arranged on the mounting base 1 for the front engine compartment cover 2 to complete the vertical lifting; after the front engine compartment cover 2 is lifted, an air flow channel 2a is formed between the front engine compartment cover 2 and the vehicle body 8 along the front and rear direction of the vehicle body; it should be noted that the mounting base 1 is not limited here, and can be the vehicle body 8 corresponding to the top hatch of the front engine compartment of the automobile, such as the cabin side beam of the front engine compartment of the automobile, or it can be an independent mounting base, and the mounting base is assembled on the vehicle body 8; the design of the front engine compartment cover 2 here is the same as that of the traditional engine compartment cover, which is determined according to the specific vehicle body shape and is an existing structure, which will not be repeated here; the "vertical" in the "vertical lifting" here refers to the height direction of the vehicle body; the cover lifting mechanism here can also have a variety of optional modes, such as a screw nut mechanism, a cylinder or hydraulic cylinder lifting mechanism, etc., which are not limited here;

[0028] In the above structural design, by designing the front engine compartment cover plate 2 of the traditional automobile as a vertically liftable structure, during driving, the lifting of the front engine compartment cover plate 2 can be actively controlled, and the air flow channel 2a formed after the front engine compartment cover plate 2 is lifted can help improve the heat dissipation of the front engine compartment of the automobile, thereby meeting the driving needs under hot working conditions; since the front engine compartment cover plate 2a is a vertically liftable structure, it is conducive to controlling the lifting height, and will not affect driving safety when the lifting distance is not large. In practice, it is generally sufficient to lift it by 10-30mm, and the specific safety is guaranteed. The proof does not affect the driver's driving field of vision; at the same time, the height position of the front engine cover is improved after being raised, so as to reduce the bending of the pedestrian's thigh during the collision, which is beneficial to the protection of pedestrians when a collision occurs, especially suitable for cars with lower front ends; in practice, for pedestrian collision protection, visual sensors and other devices are usually arranged at the front bumper position of the car, and when a collision is detected, the front engine cover can be raised. The pedestrian collision protection mechanism here is the same as the control logic of the traditional ejection-type engine cover, which will not be elaborated here.

[0029] In this embodiment, the cover lifting mechanism includes four lifting struts 3 installed on the installation base 1 and respectively connected to the four corners of the front engine compartment cover 2, and a driving assembly 4 installed on the installation base 1 for driving the lifting struts 3 to lift and lower. The driving assembly 4 here depends on the type of the specific lifting struts 3. For example, when the lifting struts 3 are lead screws, the driving assembly 4 can be a motor drive structure; it can be understood that for traditional cars, although the details of the front engine compartment cover 2 are different, the overall structure is usually approximately rectangular. Therefore, in this structural design, by designing the lifting struts 3 in the four corners, it can be ensured that the front engine compartment cover 2 is stably supported, and in pedestrian collision protection, the front engine compartment cover 2 has a good bearing capacity and reliability; at the same time, the four lifting struts 3 designed at the four corners have a small wind resistance, which is conducive to forming an air flow channel 2a between the front engine compartment cover 2 and the body 8, and in this structure, the air flow channel 2a also has a channel transverse to the body, which is conducive to further improving the heat dissipation effect in the front engine compartment and reducing the driving resistance.

[0030] In this embodiment, the mounting base 1 includes a vehicle body connection seat 101 that is conformally arranged with the hatch on the top of the front engine room of the automobile. Specifically, the vehicle body connection seat 101 here is a U-shaped bottom plate. During use, the vehicle body connection seat 101 can be installed on the vehicle body 8 by bolt connection or the like, which is not limited here; the lifting strut 3 is a lead screw, and the cover lifting mechanism also includes four lead screw nut sleeves 5 respectively installed on the four lifting struts 3 corresponding to the outer sleeves. Here, the installation of the lead screw 3 and the lead screw nut sleeve 5 is an existing structure, the simplest of which is a threaded fitting installation, which will not be repeated here. The lead screw nut sleeve 5 can be rotatably installed on the vehicle body connection seat 101; it should be noted that the principle of the nut sleeve rotating and the lead screw making a linear motion is used here to realize the lifting and lowering of the lead screw, and the lead screw lifting is adopted to take advantage of the To precisely control the lifting height; the driving assembly 4 includes a driving motor 401 and a transmission assembly 402, the driving motor 401 is connected to any one of the four screw nut sleeves 5 through the transmission assembly 402, specifically, the driving motor 401 is connected to a screw nut sleeve 5 near the rear of the vehicle body, the transmission connection refers to a connection that can realize power transmission, the transmission assembly 402 preferably adopts a gear transmission form for power transmission, the cover lifting mechanism also includes a synchronous belt 6 connected to the four screw nut sleeves 5 for driving the four screw nut sleeves 5 to rotate synchronously, specifically, the synchronous belt 6 preferably adopts a toothed belt, an outer sleeve is fixed on the outer circumference of the screw nut sleeve 5 or an outer gear ring 501 is integrally formed, and the synchronous belt 6 is meshed and connected with the outer gear ring 501;

[0031] In the above structural design, the four screw nut sleeves 5 are driven to rotate in unison by a synchronous belt, which is conducive to the synchronous lifting and lowering of the four screws and to ensure the smooth lifting and lowering of the cover. At the same time, only one drive motor 401 is required; the layout space in the front cabin is greatly saved and the compactness is high. In addition, a separate body connecting seat 101 is used to facilitate overall disassembly and installation, simplifying the structural design of the body main body 8.

[0032] In this embodiment, the drive motor 401 is fixedly installed at the bottom of the vehicle body connecting seat 101. Specifically, the drive motor 401 is fixed to the vehicle body connecting seat 101 through a motor mounting plate. The transmission assembly 402 includes an active bevel gear 402a drivingly connected to the end of the output shaft of the drive motor 401 and a driven bevel gear 402b meshingly connected to the active bevel gear 402a, and a coaxial tube 402c. The "drive connection" here can be a key connection, etc.; the driven bevel gear 402b is coaxially arranged with the screw nut sleeve 5 at the corresponding position and is transmission-connected to the screw nut sleeve 5 through the coaxial tube 402c. It should be noted that the coaxial tube 402c is coaxially sleeved on On the lead screw, it only realizes the power transmission from the driven bevel gear 402b to the lead screw nut sleeve 5. Its inner diameter is larger than the outer diameter of the lead screw and does not affect the lifting and lowering of the lead screw. The driven bevel gear 402b can be an integrated structure with the coaxial tube 402c, or it can be assembled by interference fit, or connected by screws, etc. The top of the coaxial tube 402c can be connected to the lead screw nut sleeve 5 by spline connection, or screw connection, etc. to realize power transmission; in this structural design, by fixing the drive motor 401 on the body connecting seat 101, it is convenient to disassemble and assemble together with the body connecting seat 101, which is convenient for disassembly and assembly; bevel gear transmission is adopted here to realize spatial staggered transmission, which is conducive to further improving the compactness of the overall layout.

[0033] In this embodiment, the screw is provided with an anti-rotation groove 3a arranged along the length direction of the screw, and the cover lifting mechanism also includes an anti-rotation seat 7 installed on the body connecting seat 101. The anti-rotation seat 7 can be fixed on the body connecting seat 101 by welding, screw connection, etc., and the anti-rotation seat 7 is provided with a limiting slider 7a slidably connected to the anti-rotation groove 3a; in this structural design, by designing the anti-rotation groove 3a and the limiting slider 7a, the screw can be effectively limited from rotating together with the screw nut sleeve 5, ensuring that the screw can only be lifted vertically, thereby improving the reliability of the structure; it should be noted that, in practice, since the tops of the four screws need to be connected to the front cabin cover 2, the rotation of the screw has been restricted. The anti-rotation groove 3a and the limiting slider 7a are designed here to improve the overall reliability. At the same time, the designed anti-rotation groove 3a can play a certain installation positioning role to ensure the accurate assembly position of each screw.

[0034] In this embodiment, both ends of the anti-rotation slide groove 3a in the length direction are not set through the end of the screw; this structural design can play an over-limit role to prevent the front engine compartment cover 2 from rising too high or falling too low to damage the body connecting seat 101, further improving the overall safety.

[0035] In this embodiment, the anti-rotation seat 7 includes an L-shaped connecting bracket 701 fixed to the bottom of the vehicle body connecting seat 101 and a limiting sleeve 702 fixed on the L-shaped connecting bracket 701, such as being fixed by welding, and the limiting sleeve 702 is movably mounted on the lead screw, and the limiting slider 7a is formed in the limiting sleeve 702; in this structural design, the overall structure of the anti-rotation seat 7 is simple, which is convenient for processing and manufacturing and has good structural strength; at the same time, the limiting sleeve 702 and the lead screw nut sleeve 5 can form two-point radial limitations on the lead screw in the vertical direction, thereby reducing the vibration of the lead screw during operation and helping to reduce operating noise.

[0036] In this embodiment, the vehicle body connecting seat 101 is provided with a mounting groove 101a with a top opening. Specifically, the cross-section of the mounting groove 101a is a U-shaped groove. The screw nut sleeve 5 and the synchronous belt 6 are both arranged in the mounting groove 101a. The mounting base 1 also includes a mounting groove sealing plate 102 covering the mounting groove 101a. The mounting groove sealing plate 102 can be fixed to the vehicle body connecting seat 101 by screws. If necessary, a sealing gasket can be designed between the mounting groove sealing plate 102 and the vehicle body connecting seat 101; by designing the mounting groove 101a and the mounting groove sealing plate 102, it is beneficial to form a seal for the screw nut sleeve 5 and the synchronous belt 6 to prevent dust, rainwater, etc. from contaminating the screw nut sleeve 5 and the synchronous belt 6; at the same time, the design of the mounting groove sealing plate 102 is beneficial to complete the stable installation of the screw nut sleeve 5. Specifically, as shown here, an upper sliding bearing 502 and a lower sliding bearing 503 are respectively designed at the upper and lower ends of the screw nut sleeve 5, ensuring that the screw nut sleeve 5 can rotate stably in situ.

[0037] In this embodiment, the two corners of the front engine compartment cover 2 near the rear of the vehicle body are hinged to the two lifting struts 3 at the corresponding positions. Like a transmission car, they are usually hinged with an axis to ensure that the front engine compartment cover 2 can be flipped open as a whole around the rear hinge point; the two corners of the front engine compartment cover 2 near the front of the vehicle body are fixed with plug-in sleeves 201, such as welding, and the plug-in sleeves 201 are plugged into the top of the lifting struts 3 at the corresponding positions. Usually, a certain assembly gap is reserved between the plug-in sleeves 201 and the lifting struts 3 to ensure that the front engine compartment cover 2 can be flipped open. A locking assembly 202 is provided for locking the plug sleeve 201 with the lifting strut 3 at the corresponding position. The locking assembly 202 can be an electronic lock or a mechanical lock. In this structural design, the front engine compartment cover 2 can ensure normal lifting and lowering. The provided locking assembly 202 can ensure that the front engine compartment cover 2 is still reliably connected when it is raised, thereby ensuring safety during driving. When it is lowered, it can replace the original cover lock of the car, and directly rely on the locking assembly 202 to ensure that the front engine compartment cover 2 is closed and locked. When the front engine compartment cover 2 needs to be opened, the locking assembly 202 can be opened.

[0038] In this embodiment, the locking assembly 202 includes a locking sleeve 202a fixed to the outer wall of the plug sleeve 201, such as welding, and of course it can also be an integrated structure, a locking rod 202b movably sleeved in the locking sleeve 202a, and a reset spring 202c arranged in the locking sleeve 202a for resetting the locking rod 202b. A locking hole 3b is provided on the outer wall of the top of the lifting support rod 3 corresponding to the plug sleeve 201, and one end of the locking rod 202b is inserted into the locking hole 3b; the locking sleeve 202a is also provided with a locking hole 3b for preventing the locking rod 20 2b rebound lock rod limit part 202d, specifically, here the lock rod limit part 202d is a limit bracket welded and fixed on the lock sleeve 202a, and a pull handle is designed on the lock rod 202b; the locking assembly 202 here is actually a common spring lock pin structure; when in use, first pull out the lock rod 202b, and then rotate the lock rod 202b to make the pull handle stuck on the lock rod limit part 202d to prevent the lock rod 202b from rebounding, and then, the front cabin cover 2 can be opened upwards; the locking assembly 202 in this structure has a simple structure,

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A detachable cover device for the front engine compartment of an automobile, characterized in that: It comprises a mounting base (1), a front cabin cover plate (2) arranged on the mounting base (1) in a manner that the entire cover plate can be driven to be vertically lifted, and a cover plate lifting mechanism arranged on the mounting base (1) for the front cabin cover plate (2) to complete the vertical lifting; When the front engine compartment cover (2) is raised, an air flow passage (2a) communicating along the front-rear direction of the vehicle body is formed between the front engine compartment cover (2) and the vehicle body (8).

2. The vehicle front cabin liftable cover device according to claim 1, characterized in that: The cover lifting mechanism comprises four lifting struts (3) mounted on a mounting base (1) and respectively connected to four corners of a front cabin cover (2), and a driving assembly (4) mounted on the mounting base (1) and used for driving the lifting struts (3) to move up and down.

3. The vehicle front cabin liftable cover device according to claim 2, characterized in that: The installation base (1) comprises a vehicle body connection seat (101) configured to conform to a hatch on the top of a front engine compartment of the vehicle, the lifting strut (3) is a lead screw, and the cover lifting mechanism further comprises four lead screw nut sleeves (5) respectively corresponding to the outer sleeves and mounted on the four lifting struts (3), and the lead screw nut sleeves (5) are rotatably mounted on the vehicle body connection seat (101); The driving assembly (4) comprises a driving motor (401) and a transmission assembly (402); the driving motor (401) is drivingly connected to any one of the four screw nut sleeves (5) via the transmission assembly (402); and the cover lifting mechanism further comprises a synchronous belt (6) drivingly connected to the four screw nut sleeves (5) for driving the four screw nut sleeves (5) to rotate synchronously.

4. The vehicle front cabin liftable cover device according to claim 3, characterized in that: The driving motor (401) is fixedly mounted on the bottom of the vehicle body connection seat (101); the transmission assembly (402) comprises an active bevel gear (402a) drivingly connected to the end of the output shaft of the driving motor (401), a driven bevel gear (402b) meshingly connected to the active bevel gear (402a), and a coaxial tube (402c); the driven bevel gear (402b) is coaxially arranged with a lead screw nut sleeve (5) at a corresponding position and is transmission-connected to the lead screw nut sleeve (5) via the coaxial tube (402c).

5. The vehicle front cabin liftable cover device according to claim 3, characterized in that: The lead screw is provided with an anti-rotation slide groove (3a) arranged along the length direction of the lead screw, and the cover lifting mechanism also includes an anti-rotation seat (7) installed on the vehicle body connecting seat (101), and the anti-rotation seat (7) is provided with a limiting slider (7a) slidably connected to the anti-rotation slide groove (3a).

6. The vehicle front cabin liftable cover device according to claim 5, characterized in that: Both ends of the anti-rotation sliding groove (3a) in the length direction do not penetrate the end of the lead screw.

7. The vehicle front cabin liftable cover device according to claim 5, characterized in that: The anti-rotation seat (7) comprises an L-shaped connection bracket (701) fixed to the bottom of the vehicle body connection seat (101) and a limiting sleeve (702) fixed to the L-shaped connection bracket (701); the limiting sleeve (702) is movably mounted on the lead screw, and the limiting slider (7a) is formed in the limiting sleeve (702).

8. The vehicle front cabin liftable cover device according to claim 3, characterized in that: The vehicle body connection seat (101) is provided with a mounting groove (101a) with a top opening, the lead screw nut sleeve (5) and the synchronous belt (6) are both arranged in the mounting groove (101a), and the mounting base (1) also includes a mounting groove sealing plate (102) covering the mounting groove (101a).

9. The vehicle front cabin liftable cover device according to claim 2, characterized in that: The two corners of the front engine compartment cover (2) close to the rear of the vehicle body are hinged to two lifting struts (3) at corresponding positions; The front engine compartment cover (2) is fixed with a plug-in sleeve (201) at two corners close to the front of the vehicle body, the plug-in sleeve (201) is plugged into the top of the lifting strut (3) at the corresponding position, and the plug-in sleeve (201) is provided with a locking assembly (202) for locking the plug-in sleeve (201) with the lifting strut (3) at the corresponding position.

10. The vehicle front cabin liftable cover device according to claim 9, characterized in that: The locking assembly (202) comprises a locking sleeve (202a) fixed on the outer wall of the plug-in sleeve (201), a locking rod (202b) movably sleeved in the locking sleeve (202a), and a reset spring (202c) arranged in the locking sleeve (202a) for resetting the locking rod (202b); a locking hole (3b) is arranged on the outer wall of the top of the lifting support rod (3) corresponding to the plug-in sleeve (201), and one end of the locking rod (202b) is inserted into the locking hole (3b); the locking sleeve (202a) is also provided with a locking rod limiting portion (202d) for preventing the locking rod (202b) from rebounding.

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