Vehicle-mounted display instrument of heavy-duty car

Abstract

The invention relates to the technical field of automobile parts, in particular to a heavy-duty automobile vehicle-mounted display instrument which comprises an instrument panel body, a first positioning block, a second positioning block, a limiting structure, a supporting structure, a linkage structure, a jacking structure, a fixing structure, a back plate, a transparent cover, a sealing ring and a mounting hole. The instrument panel body can be installed on the connecting frame through the limiting structure, the situation that the data plug is damaged due to the fact that the hand slips when the instrument panel body is grabbed by hand and stress is uneven when the instrument panel body is upwarped by a screwdriver is avoided, and the convenience and safety of disassembling the data plug are improved. And meanwhile, limiting on the instrument panel body can be rapidly relieved by pulling the limiting structure, so that rapid disassembly of the instrument panel body is achieved, overhaul and maintenance of the instrument panel body are facilitated, the situation that the limiting structure needs to be pulled by hands all the time in the disassembly process can be avoided through the supporting structure, and therefore operation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive components, and more specifically, to an on-vehicle display instrument for heavy-duty vehicles. Background Art

[0002] An automotive instrument panel, as a device for an automotive display instrument that can reflect the working conditions of various vehicle systems, provides real-time vehicle status information for the driver. It usually consists of multiple parts, including a speedometer, a tachometer, an odometer, a fuel gauge, a water temperature gauge, etc. These parts display various parameters of the vehicle through pointers or numbers. A transparent cover is installed at the front end of the automotive instrument panel to shield and protect the display screen and pointers at the front end of the instrument panel. A detachable and washable back panel is installed at the back, and at the same time, a data connector is also provided at the back. By docking between the data plug on the vehicle and the data connector, power supply and data transmission can be carried out for the instrument panel.

[0003] However, a latch is generally provided on the conventional vehicle data plug. By setting the latch, the data plug on the vehicle and the data connector on the instrument panel can be prevented from falling off after being plugged in. However, during the process of removing the data plug, due to the tight connection between the two under the action of the latch, it is easy for the hand to slip when grasping the data plug and pulling it out. At this time, tools such as a flat-blade screwdriver need to be used to pry it up. During the prying process, since the data plug is stressed unilaterally, uneven stress is likely to cause damage to the data plug. Therefore, it is not convenient to remove the data plug, resulting in poor convenience and safety of the data plug removal operation. Moreover, generally, the instrument panel is installed on the vehicle through the cooperation of multiple bolts and nuts. Therefore, when it is damaged and needs to be disassembled and repaired, multiple nuts need to be turned to disassemble it, which is time-consuming and laborious to operate. Thus, it is not convenient for the quick disassembly of the instrument panel, resulting in low efficiency of the instrument panel maintenance. At the same time, during the disassembly process, the bolts and nuts are also likely to fall into the interior of the vehicle. It is not convenient to take out the bolts and nuts after they fall into the narrow space inside the vehicle. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides an on-vehicle display instrument for heavy-duty vehicles.

[0005] The technical solution adopted by the present invention to solve its technical problems is as follows: A vehicle-mounted display instrument for heavy trucks, including a dashboard body, a back plate is detachably installed on the dashboard body, two first positioning blocks are fixedly connected to the back plate, two second positioning blocks are fixedly connected to the back plate, both the first positioning block and the second positioning block are engaged with a connecting frame, a limiting structure is provided on the connecting frame, a linkage structure is provided on the connecting frame, a supporting structure is provided on the connecting frame, a fixing structure is provided on the dashboard body, a transparent cover is provided on one side of the dashboard body, a sealing ring is abutted between the transparent cover and the dashboard body, a plurality of mounting holes are provided on the connecting frame, and a jacking structure is provided on the back plate;

[0006] The jacking structure includes a guide post and a top plate. A plurality of guide posts are slidably connected to the back plate. The same top plate is fixedly connected to one side of adjacent two of the guide posts. Two rotating shafts are provided on one side of the top plate. The rotating shafts are rotatably connected to the back plate. A resisting block is fixedly connected to the rotating shaft. The two resisting blocks located on one side of the top plate are abutted against the top plate. A gear is fixedly connected to the rotating shaft. Adjacent two of the gears are meshed with each other. A connecting rod is fixedly connected to one of the rotating shafts located on one side of the top plate. A handle is fixedly connected between adjacent two of the connecting rods.

[0007] Specifically, a V-shaped structure is formed between adjacent two of the resisting blocks. A second spring is sleeved outside the guide post. One end of the second spring abuts against the guide post, and the other end of the second spring abuts against the back plate.

[0008] Specifically, the limiting structure includes a guide seat and a sliding rod. Four guide seats are fixedly connected to the connecting frame. The sliding rod is slidably connected to the guide seat. The same clamping plate is fixedly connected to one ends of two of the sliding rods. One end of one of the clamping plates is engaged with one side of the two first positioning blocks, and one end of the other clamping plate is engaged with the other side of the two first positioning blocks. The same pulling plate is fixedly connected to the other ends of the two sliding rods. A first spring is sleeved outside the sliding rod. One end of the first spring abuts against the guide seat, and the other end of the first spring abuts against the clamping plate.

[0009] Specifically, the cross section of one end of the first positioning block close to the connecting frame is in a trapezoidal structure, and the cross section of one end of the second positioning block close to the connecting frame is in a trapezoidal structure.

[0010] Specifically, the cross section of one end of the clamping plate close to the first positioning block is in a trapezoidal structure, and the overall cross section of the clamping plate is in an L-shaped structure.

[0011] Specifically, the support structure includes a support rod and a limiting groove. The pull plate is rotatably connected to the support rod. One end of the support rod is in contact with the connecting frame, and one side of the support rod is in contact with the pull plate. The pull plate is provided with a limiting groove.

[0012] Specifically, the linkage structure includes a connecting column and a rotating rod. The connecting column is fixedly connected to the connecting frame. The rotating rod is rotatably connected to the connecting column. Two first guide shafts are fixedly connected to both ends of the rotating rod. A first guide groove is provided on the card plate. The first guide shaft extends to the interior of the adjacent first guide groove and is slidably connected to the card plate.

[0013] Specifically, the fixed structure includes a connecting seat and a clamping seat, two connecting seats are fixedly connected on both sides of the transparent cover, and clamping seats are fixedly connected on both sides of the instrument panel body. The clamping seats are clamped with adjacent connecting seats, and two clamping blocks are slidably connected on the clamping seat, and the clamping blocks are clamped with the connecting seats, and a third spring is provided between the two clamping blocks.

[0014] Specifically, a slide plate is slidably connected to the base, two second guide grooves are provided on the slide plate, a second guide shaft is fixedly connected to the block, and the second guide shaft extends to the inside of the adjacent second guide groove and is slidably connected to the slide plate.

[0015] Specifically, the cross section of the slide away from one end of the connecting seat is L-shaped, the cross section of the clamping block close to one end of the connecting seat is trapezoidal, and the cross section of the clamping seat close to one end of the connecting seat is trapezoidal.

[0016] The beneficial effects of the present invention are:

[0017] (1) The lifting structure enables the data plug to be quickly disassembled without the aid of a screwdriver, thereby avoiding slipping of the hand when grasping it by hand and damage to the data plug due to uneven force when lifting it with a screwdriver, thereby improving the convenience and safety of data plug disassembly.

[0018] (2) The instrument panel body can be installed on the connecting frame through the limiting structure, and the limiting of the instrument panel body can be quickly released by pulling the limiting structure, thereby realizing rapid disassembly of the instrument panel body and facilitating the inspection and maintenance of the instrument panel body. The supporting structure can avoid the need to pull the limiting structure by hand during the disassembly process, thereby improving the convenience of operation.

[0019] (3) The fixing structure can realize the installation and fixing of the transparent mask, and can also realize the rapid disassembly of the transparent mask. Therefore, when the transparent mask is scratched or damaged, it can be quickly replaced, thereby being more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic structural diagram of the overall structure of a preferred embodiment of a heavy-duty vehicle on-vehicle display instrument provided by the present invention;

[0022] Figure 2 For Figure 1 An enlarged schematic view of part A shown;

[0023] Figure 3 It is a schematic structural diagram of the connection structure between the instrument panel body and the sealing ring of the present invention;

[0024] Figure 4 For Figure 3 An enlarged schematic view of part B shown;

[0025] Figure 5 It is a schematic structural diagram of the connection structure between the guide seat and the sliding rod of the present invention;

[0026] Figure 6 For Figure 5 An enlarged schematic view of part C shown;

[0027] Figure 7 It is a schematic structural diagram of the connection structure between the pull plate and the limiting groove of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the connection structure between the connection seat and the clamping block of the present invention.

[0029] In the figure: 1, instrument panel body; 2, first positioning block; 3, second positioning block; 4, connecting frame; 5, limiting structure; 501, guide seat; 502, sliding rod; 503, clamping plate; 504, pull plate; 505, first spring; 6, supporting structure; 601, supporting rod; 602, limiting groove; 7, linkage structure; 701, connecting column; 702, rotating rod; 703, first guiding shaft; 704, first guiding groove; 8, jacking structure; 801, guiding column; 802, top plate; 803, second spring; 804, rotating shaft; 805, abutting block; 806, gear; 807, connecting rod; 808, handle; 9, fixing structure; 901, connection seat; 902, clamping seat; 903, sliding plate; 904, second guiding groove; 905, second guiding shaft; 906, clamping block; 907, third spring; 10, back plate; 11, transparent cover; 12, sealing ring; 13, mounting hole. Specific embodiments

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] AsFigure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in ,

[0032] , Figure 1 , Figure 5 , and Figure 6 , a vehicle-mounted display instrument for a heavy-duty vehicle according to the present invention includes a dashboard body 1. A back plate 10 is detachably mounted on the dashboard body 1. Two first positioning blocks 2 are fixedly connected to the back plate 10. Two second positioning blocks 3 are fixedly connected to the back plate 10. Both the first positioning block 2 and the second positioning block 3 are engaged with a connecting frame 4. A limiting structure 5 is provided on the connecting frame 4. A linkage structure 7 is provided on the connecting frame 4. A supporting structure 6 is provided on the connecting frame 4. A fixing structure 9 is provided on the dashboard body 1. A transparent cover 11 is provided on one side of the dashboard body 1. A sealing ring 12 is abutted between the transparent cover 11 and the dashboard body 1. A plurality of mounting holes 13 are provided on the connecting frame 4. A jacking structure 8 is provided on the back plate 10;

[0032] As Figure 1 , Figure 5 and Figure 6As shown, the jacking structure 8 includes guide posts 801 and a top plate 802. A plurality of guide posts 801 are slidably connected to the back plate 10. The same top plate 802 is fixedly connected to one side of two adjacent guide posts 801. Two rotating shafts 804 are provided on one side of the top plate 802. The rotating shafts 804 are rotatably connected to the back plate 10. A resisting block 805 is fixedly connected to the rotating shaft 804. The two resisting blocks 805 on one side of the top plate 802 are in contact with the top plate 802. A gear 806 is fixedly connected to the rotating shaft 804. Adjacent gears 806 are meshed with each other. A connecting rod 807 is fixedly connected to one of the rotating shafts 804 on one side of the top plate 802. A handle 808 is fixedly connected between two adjacent connecting rods 807. A V-shaped structure is formed between two adjacent resisting blocks 805. A second spring 803 is sleeved outside the guide post 801. One end of the second spring 803 abuts against the guide post 801, and the other end of the second spring 803 abuts against the back plate 10. That is, when it is necessary to pull out the data plug, the handle 808 can be held and pushed away from the dashboard body 1. The handle 808 will drive the two connecting rods 807 to move. The movement of the connecting rods 807 will drive the rotating shafts 804 to rotate. The rotation of the rotating shafts 804 will drive the gears 806 and the resisting blocks 805 to rotate simultaneously. Since the two gears 806 are meshed with each other, the rotation of one rotating shaft 804 will drive the adjacent other rotating shaft 804 to move in the opposite direction through the transmission of the gears 806, so that the two resisting blocks 805 move relative to each other simultaneously. During the movement of the two resisting blocks 805, they can contact and move a top plate 802 on one side of them. The movement of the top plate 802 will drive the two guide posts 801 to slide on the back plate 10, and the first spring 505 contracts. The two guide posts 801 can play a role in guiding the movement of the top plate 802. The simultaneous movement of the two top plates 802 will contact the data plug and push the data plug out of the data connector on the dashboard body 1, thus realizing the rapid extraction of the data plug, avoiding the situation of hand slipping when grasping by hand and uneven force when prying with a screwdriver, which may cause damage to the data plug, thereby improving the convenience and safety of the data plug disassembly operation. And because the length of the connecting rod 807 is long and the length of the resisting block 805 is short, according to the lever principle, it is more labor-saving to rotate the handle 808, so it is more convenient to use.

[0033] Specifically, as Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the limiting structure 5 includes a guide seat 501 and a slide bar 502. Four guide seats 501 are fixedly connected to the connecting frame 4. A slide bar 502 is slidably connected to the guide seat 501. One end of two slide bars 502 is fixedly connected to the same clamping plate 503. One end of one clamping plate 503 is clamped between one side of two first positioning blocks 2, and one end of the other clamping plate 503 is clamped between the other side of two first positioning blocks 2. The other ends of two slide bars 502 are fixedly connected to the same pulling plate 504. A first spring 505 is sleeved on the outside of the slide bar 502. One end of the first spring 505 abuts against the guide seat 501, and the other end of the first spring 505 abuts against the clamping plate 503. The support structure 6 includes a support rod 601 and a limiting groove 602. A support rod 601 is rotatably connected to the pulling plate 504. One end of the support rod 601 abuts against the connecting frame 4, and one side of the support rod 601 abuts against the pulling plate 504. A limiting groove 602 is provided on the pulling plate 504. The linkage structure 7 includes a connecting column 701 and a rotating rod 702. A connecting column 701 is fixedly connected to the connecting frame 4. A rotating rod 702 is rotatably connected to the connecting column 701. Two first guide shafts 703 are fixedly connected to both ends of the rotating rod 702. A first guide groove 704 is provided on the clamping plate 503. The first guide shaft 703 extends into the adjacent first guide groove 704 and is slidably connected to the clamping plate 503. That is, during the use process, the connecting frame 4 can be installed on the vehicle through a plurality of mounting holes 13 in cooperation with bolts and nuts. After the installation is completed, the dashboard body 1 can be moved to one side of the connecting frame 4, and then the dashboard body 1 is moved towards the connecting frame 4. During the movement of the dashboard body 1, two first positioning blocks 2 and two second positioning blocks 3 can pass through the connecting frame 4. Since the cross-section of the first positioning block 2 near the connecting frame 4 is trapezoidal, it can play a guiding role when the first positioning block 2 is clamped with the connecting frame 4. Since the cross-section of the second positioning block 3 near the connecting frame 4 is trapezoidal, it can play a guiding role when the second positioning block 3 is clamped with the connecting frame 4. The dashboard body 1 can be positioned by the simultaneous clamping of two first positioning blocks 2 and two second positioning blocks 3 with the connecting frame 4. And since the cross-section of the clamping plate 503 near the first positioning block 2 is trapezoidal, during the movement of the first positioning block 2, it can abut against the two clamping plates 503 to move away from each other. When the dashboard body 1 abuts against the connecting frame 4, the two first springs 505 will simultaneously elongate, causing the clamping plate 503 to automatically move towards the two first positioning blocks 2 and be clamped with the clamping plate 503. At this time, the first positioning block 2 cannot move, so the dashboard body 1 cannot move either, thus realizing the installation of the dashboard body 1. When the dashboard body 1 is damaged and needs to be disassembled and repaired, one of the pulling plates 504 can be pulled,One of the pull plates 504 drives the two sliding rods 502 to drive one of the clamping plates 503 to move away from the two first positioning blocks 2. During the movement of one of the clamping plates 503, it will drive one of the first guide grooves 704 thereon to move. While the first guide groove 704 is moving, the first guide shaft 703 will slide inside the first guide groove 704, and at the same time, the rotating rod 702 rotates. The rotation of the rotating rod 702 will drive the other first guide shaft 703 to slide inside the other first guide groove 704, so that the other clamping plate 503 also moves away from the two first positioning blocks 2. Therefore, only by pulling one pull plate 504 can the two clamping plates 503 move away from the first positioning blocks 2 at the same time, thus avoiding the need to pull two pull plates 504 simultaneously, effectively improving the convenience of operation. When the pull plate 504 is pulled to a certain position, the support rod 601 can be rotated so that the other side thereof abuts against the pull plate 504, and then the pull plate 504 can be released. At this time, the support rod 601 will support the pull plate 504, thus avoiding the first spring 505 from elongating to drive the clamping plate 503 to engage with the first positioning block 2 again after the pull plate 504 is released, and avoiding the need to keep pulling the pull plate 504 during the disassembly process, thus effectively improving the convenience of operation. Since the two clamping plates 503 are not engaged with the first positioning block 2 at this time, the instrument panel body 1 can be directly taken away from one side of the connecting frame 4, thus realizing the rapid disassembly of the instrument panel body 1, shortening the disassembly time, improving the convenience of the disassembly operation, and thus improving the maintenance efficiency of the instrument panel body 1.,

[0034] Specifically, such as Figure 1 、 Figure 3 and Figure 4As shown, the fixed structure 9 includes a connecting seat 901 and a clamping seat 902, two connecting seats 901 are fixedly connected on both sides of the transparent cover 11, and clamping seats 902 are fixedly connected on both sides of the instrument panel body 1, and the clamping seats 902 are clamped with adjacent connecting seats 901, and two clamping blocks 906 are slidably connected on the clamping seat 902, and the clamping blocks 906 are clamped with the connecting seat 901, and a third spring 907 is abutted between the two clamping blocks 906, and a slide plate 903 is slidably connected on the clamping seat 902, and two second guide grooves 904 are provided on the slide plate 903, and a second guide shaft 905 is fixedly connected to the clamping block 906, and the second guide shaft 905 extends to the inside of the adjacent second guide groove 904 and is connected to the slide plate The two slide plates 903 are slidably connected, that is, the display screen and the pointer at the front end of the instrument panel body 1 can be shielded and protected by the transparent cover 11, and the sealing ring 12 can improve the sealing between the transparent cover 11 and the instrument panel body 1, thereby preventing dust and water from entering the interior of the instrument panel body 1 through the gap between the transparent cover 11 and the instrument panel body 1. When the transparent cover 11 is scratched or damaged, it can be removed by pressing the two slide plates 903 at the same time. Since the cross-section of one end of the slide plate 903 is an L-shaped structure, the contact area with the hand can be increased when pressed, thereby improving the comfort of operation. The movement of the slide plate 903 will drive the two second guide grooves 904 to move, and the movement of the second guide grooves 904 will cause the second guide shaft 905 to move inside the second guide grooves 904. The second spring 907 is pressed against the bottom of the slide 903, and the second spring 907 is pressed against the bottom of the slide 903. The spring 907 is pressed against the bottom of the slide 903, and the second spring 907 is pressed against the bottom of the slide 903. The quick disassembly of the cover 11 facilitates the replacement of the transparent cover 11. During the installation of the new transparent cover 11, the connecting seat 901 can be engaged with the clamping seat 902, thereby realizing the positioning of the transparent cover 11. Since the cross-section of the clamping seat 902 near one end of the connecting seat 901 is a trapezoidal structure, it can play a role in guiding the movement when the clamping seat 902 and the connecting seat 901 are engaged. Moreover, since the cross-section of one end of the clamping block 906 is a trapezoidal structure, it can resist the clamping block 906 during the movement of the connecting seat 901 and automatically move toward the inside of the clamping seat 902. After the connecting seat 901 reaches a specific position, the clamping block 906 is automatically engaged with the connecting seat 901 under the action of the third spring 907, thereby facilitating the quick installation of the transparent cover 11.

[0035] When the present invention is in use, during the using process, the connecting frame 4 can be installed on the vehicle through a plurality of mounting holes 13 in cooperation with bolts and nuts. When the dashboard body 1 is damaged and needs to be disassembled and repaired, by pulling one of the pull plates 504, the movement of one of the pull plates 504 will drive the two slide bars 502 to drive one of the clamping plates 503 to move away from the two first positioning blocks 2. During the movement of one of the clamping plates 503, one of the first guide grooves 704 thereon will be driven to move. While the first guide groove 704 is moving, the first guide shaft 703 will slide inside the first guide groove 704, and at the same time, the rotating rod 702 will rotate. The rotation of the rotating rod 702 will drive the other first guide shaft 703 to slide inside the other first guide groove 704, so that the other clamping plate 503 also moves away from the two first positioning blocks 2. Therefore, only by pulling one pull plate 504 can the two clamping plates 503 be made to move away from the first positioning blocks 2 at the same time, thus avoiding the need to pull two pull plates 504 simultaneously, effectively improving the operation convenience. When the pull plate 504 is pulled to a certain position, the support rod 601 can be rotated so that the other side thereof abuts against the pull plate 504, and then the pull plate 504 can be released. At this time, the support rod 601 will support the pull plate 504, thus avoiding the first spring 505 from stretching to drive the clamping plate 503 to be engaged with the first positioning block 2 again after the pull plate 504 is released, and avoiding the need to keep pulling the pull plate 504 during the disassembly process, thus effectively improving the operation convenience. Since the two clamping plates 503 are not engaged with the first positioning blocks 2 at this time, the dashboard body 1 can be directly taken away from one side of the connecting frame 4, thus realizing the rapid disassembly of the dashboard body 1, shortening its disassembly time, improving the convenience of its disassembly operation, and thus improving the maintenance efficiency of the dashboard body 1;

[0036] When the data plug needs to be unplugged, the handle 808 can be held and pushed away from the instrument panel body 1. The handle 808 will drive the two connecting rods 807 to move. The movement of the connecting rod 807 will drive the shaft 804 to rotate. The rotation of the shaft 804 will drive the gear 806 and the block 805 to rotate at the same time. Since the two gears 806 are meshed with each other, the rotation of one shaft 804 will drive the other adjacent shaft 804 to move in the opposite direction through the gear 806, so that the two blocks 805 move relative to each other at the same time. During the movement, the two blocks 805 can resist the movement of a top plate 802 on one side. The movement of the top plate 802 will drive the two guide columns 801 Sliding on the back plate 10, the first spring 505 contracts, and the two guide columns 801 can guide the top plate 802 in motion. The two top plates 802 move simultaneously to contact the data plug and push the data plug out from the data connector on the instrument panel body 1, thereby realizing the rapid removal of the data plug, avoiding the slipping of the hand when grabbing it by hand and the uneven force when lifting it with a screwdriver, thereby improving the convenience and safety of the data plug removal operation. In addition, since the length of the connecting rod 807 is long and the length of the block 805 is short, it is more labor-saving when turning the handle 808 according to the lever principle, so that it is more convenient to use;

[0037] The transparent cover 11 can shield and protect the display screen and pointer at the front end of the instrument panel body 1, and the sealing ring 12 can improve the sealing between the transparent cover 11 and the instrument panel body 1, thereby preventing dust and water from entering the interior of the instrument panel body 1 through the gap between the transparent cover 11 and the instrument panel body 1. When the transparent cover 11 is scratched or damaged, the two slide plates 903 can be pressed at the same time. The movement of the slide plates 903 will drive the two second guide grooves 904 to move. The movement of the second guide grooves 904 will cause the second guide shaft 905 to move inside the second guide grooves 904. At the same time, the two blocks 906 will move away from the connecting seat 901 at the same time, and the third spring 907 will contract. As the slide plate 903 is continuously pushed, the two blocks 906 will not engage with the connecting seat 901. Then, the slide plate 903 is continued to be pushed. During the movement, the end of the slide plate 903 will come into contact with the transparent cover 11, thereby being able to push the transparent cover 11 out a certain distance, so that the internal slot on the connecting seat 901 and the block 906 are staggered. Therefore, after releasing the slide plate 903, it is possible to avoid the block 906 from engaging with the connecting seat 901 again under the action of the third spring 907, thereby improving the convenience of operation. Next, the damaged transparent cover 11 can be removed from one side of the instrument panel body 1, thereby realizing the rapid disassembly of the transparent cover 11 and facilitating the replacement of the transparent cover 11.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heavy-duty vehicle on-board display instrument, characterized in that: The instrument panel body (1) comprises an instrument panel body (1), a back plate (10) being detachably mounted on the instrument panel body (1), two first positioning blocks (2) being fixedly connected to the back plate (10), two second positioning blocks (3) being fixedly connected to the back plate (10), the first positioning blocks (2) and the second positioning blocks (3) both being engaged with a connecting frame (4), the connecting frame (4) being provided with a limiting structure (5), the connecting frame (4) being provided with a linkage structure (7), the connecting frame (4) being provided with a supporting structure (6), the instrument panel body (1) being provided with a fixing structure (9), a transparent cover (11) being provided on one side of the instrument panel body (1), a sealing ring (12) being in contact with the transparent cover (11) and the instrument panel body (1), a plurality of mounting holes (13) being provided on the connecting frame (4), and a jacking structure (8) being provided on the back plate (10); The lifting structure (8) comprises a guide column (801) and a top plate (802); a plurality of guide columns (801) are slidably connected to the back plate (10); one side of two adjacent guide columns (801) is fixedly connected to the same top plate (802); one side of the top plate (802) is provided with two rotating shafts (804); the rotating shafts (804) are rotatably connected to the back plate (10); a stopper (805) is fixedly connected to the rotating shaft (804); the two stopper blocks (805) located on one side of the top plate (802) are in contact with the top plate (802); a gear (806) is fixedly connected to the rotating shaft (804); two adjacent gears (806) are meshed with each other; a connecting rod (807) is fixedly connected to one of the rotating shafts (804) located on one side of the top plate (802); a handle (808) is fixedly connected between two adjacent connecting rods (807).

2. A heavy-duty vehicle on-board display instrument according to claim 1, characterized in that: A V-shaped structure is formed between two adjacent abutting blocks (805); a second spring (803) is sleeved on the outside of the guide column (801); one end of the second spring (803) abuts against the guide column (801); and the other end of the second spring (803) abuts against the back plate (10).

3. A heavy-duty vehicle on-board display instrument according to claim 1, characterized in that: The limiting structure (5) comprises a guide seat (501) and a sliding rod (502), the connecting frame (4) is fixedly connected with four guide seats (501), the guide seat (501) is slidably connected with a sliding rod (502), one end of two sliding rods (502) is fixedly connected with a same clamping plate (503), one end of one of the clamping plates (503) is clamped with one side of two first positioning blocks (2), one end of the other clamping plate (503) is clamped with the other side of the two first positioning blocks (2), the other end of the two sliding rods (502) is fixedly connected with a same pulling plate (504), the outer part of the sliding rod (502) is sleeved with a first spring (505), one end of the first spring (505) is in contact with the guide seat (501), and the other end of the first spring (505) is in contact with the clamping plate (503).

4. A heavy-duty vehicle on-board display instrument according to claim 3, characterized in that: The cross-section of the first positioning block (2) close to one end of the connecting frame (4) is a trapezoidal structure, and the cross-section of the second positioning block (3) close to one end of the connecting frame (4) is a trapezoidal structure.

5. A heavy-duty vehicle on-board display instrument according to claim 3, characterized in that: The cross section of the clamping plate (503) at one end close to the first positioning block (2) is in a trapezoidal structure, and the cross section of the clamping plate (503) as a whole is in an L-shaped structure.

6. A heavy-duty vehicle on-board display instrument according to claim 3, characterized in that: The support structure (6) comprises a support rod (601) and a limiting groove (602); the support rod (601) is rotatably connected to the pull plate (504); one end of the support rod (601) is in contact with the connecting frame (4); one side of the support rod (601) is in contact with the pull plate (504); and the limiting groove (602) is provided on the pull plate (504).

7. A heavy-duty vehicle on-board display instrument according to claim 3, characterized in that: The linkage structure (7) comprises a connecting column (701) and a rotating rod (702); the connecting column (701) is fixedly connected to the connecting frame (4); the rotating rod (702) is rotatably connected to the connecting column (701); two first guide shafts (703) are fixedly connected to both ends of the rotating rod (702); a first guide groove (704) is provided on the clamping plate (503); the first guide shaft (703) extends to the inside of an adjacent first guide groove (704) and is slidably connected to the clamping plate (503).

8. The heavy-duty vehicle on-board display instrument according to claim 1, characterized in that: The fixing structure (9) comprises a connecting seat (901) and a clamping seat (902); two connecting seats (901) are fixedly connected on both sides of the transparent cover (11); two clamping seats (902) are fixedly connected on both sides of the instrument panel body (1); the clamping seats (902) are clamped with adjacent connecting seats (901); two clamping blocks (906) are slidably connected to the clamping seats (902); the clamping blocks (906) are clamped with the connecting seat (901); and a third spring (907) is provided to abut against the two clamping blocks (906).

9. A heavy-duty vehicle on-board display instrument according to claim 8, characterized in that: The holder (902) is slidably connected to a slide plate (903), the slide plate (903) is provided with two second guide grooves (904), the block (906) is fixedly connected to a second guide shaft (905), the second guide shaft (905) extends to the inside of an adjacent second guide groove (904) and is slidably connected to the slide plate (903).

10. A heavy-duty vehicle on-board display instrument according to claim 9, characterized in that: The cross section of the slide plate (903) at one end away from the connecting seat (901) is L-shaped, the cross section of the clamping block (906) at one end close to the connecting seat (901) is trapezoidal, and the cross section of the clamping seat (902) at one end close to the connecting seat (901) is trapezoidal.

Images