CN115027573B

CN115027573B - Liftable large truck fender mud cover

Info

Publication number: CN115027573B
Application number: CN202210747495.9A
Authority: CN
Inventors: 于志刚; 张瑞民; 李平
Original assignee: Chengdu Vocational and Technical College of Industry
Current assignee: Chengdu Vocational and Technical College of Industry
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-01-06
Anticipated expiration: 2042-06-29
Also published as: CN115027573A; ZA202208515B

Abstract

The invention discloses a liftable large truck mud guard, which belongs to the technical field of automobiles and comprises a chassis frame, wherein a displacement sensing mechanism, a driving mechanism and a locking mechanism are sequentially fixed on the chassis frame from front to back, and the locking mechanism comprises: the device comprises a guide part, a connecting part and an unlocking part, wherein the connecting part is connected inside the guide part in a sliding mode, the unlocking part is installed on one side of the guide part in a fitting mode, the upper end of the connecting part is fixedly connected with a driving mechanism, the lower end of the connecting part is fixedly connected with a connecting frame, a displacement sensing mechanism is fixedly connected with the connecting frame through a synchronous support, and the lower end of the connecting frame is fixedly connected with a mud guard cover. According to the invention, the automatic lifting and locking functions of the truck mud guard can be realized through the driving mechanism and the locking mechanism, so that the truck can meet the driving requirements of different road conditions, and the driving adaptability of the truck is enhanced.

Description

Liftable large truck fender mud cover

Technical Field

The invention belongs to the technical field of automobiles, and particularly relates to a liftable mud guard cover of a large truck.

Background

The fender mud cover is the plate-type structure of installing at wheel outer frame back, and it can prevent that earth and grit from splashing to the person, reduces the emergence of incident, can also prevent simultaneously that earth from splashing pull rod and bulb on, avoids these parts to rust because of too early, and promotes the maintenance cost in vehicle later stage to in rainfall weather, the fender mud cover can also reduce the rainwater that splashes and block the field of vision of automobile body both sides and rear vehicle, reduces the potential safety hazard.

However, in the prior art, the relative height between the mud guard and the tire is generally not adjustable, and when a muddy road section is encountered, mud is easily accumulated between the tire and the mud guard to form blockage; when the truck runs on a highway section, the flying stones are easy to roll up, and pedestrians and vehicles coming from the rear are injured by the flying stones. Therefore, how to provide a liftable mud guard for a large truck is one of the problems that needs to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide a liftable large truck mud guard cover to solve the defects in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a liftable large truck fender mud cover, includes the chassis frame, the chassis frame is fixed with displacement sensing mechanism, actuating mechanism and kayser mechanism by preceding back in proper order, kayser mechanism includes: guide part, joining part and unblock part, joining part sliding connection be in guide part's inside, the laminating of unblock part is installed one side of guide part, joining part's upper end with actuating mechanism fixed connection, lower extreme and link fixed connection, displacement sensing mechanism through synchronous support with link fixed connection, the lower extreme and the fender mud cover fixed connection of link.

Preferably, the displacement sensing mechanism includes: the lower end of the displacement sensor is provided with an expansion sleeve, and the end part of the expansion sleeve is fixedly connected with the synchronous support.

Preferably, actuating mechanism includes the pneumatic cylinder, the output and the hydraulic telescoping rod fixed connection of pneumatic cylinder, hydraulic telescoping rod's tip with join up part fixed connection.

Preferably, a guide rail is arranged in the guide part, the engaging part is slidably mounted in the guide rail, and two side walls of the guide part are provided with locking grooves.

Preferably, it includes the slider to link up the part, the slider sets up inside the guide rail, the other end of slider is provided with two parallel trapezoidal boards, two run through between the trapezoidal board and be provided with the pivot, the pivot both ends are all rotated and are connected with the spring bolt, link through the diaphragm synchronization between two spring bolts, two the lower extreme of trapezoidal board is fixedly connected with L type still and links up the piece, the L type links up the piece will actuating mechanism links up with the link, the L type still is provided with the spring on linking up the piece, spring one end with L type links up piece fixed connection, the other end with diaphragm fixed connection.

Preferably, the unlocking means includes: the miniature hydraulic cylinder is fixed on the chassis frame, the output end of the miniature hydraulic cylinder is fixedly connected with the unlocking plate, one side of the unlocking plate, which is close to the lock tongue, is provided with movable lock grooves in one-to-one correspondence to the lock grooves, the size of the lock grooves is completely the same as that of the movable lock grooves, and the lock tongue is matched with the lock grooves and the movable lock grooves for use.

Preferably, the upper part of the unlocking plate is provided with a limiting groove, the length of the limiting groove is equal to the vertical length of the locking groove, and a limiting screw is further arranged in the limiting groove.

Compared with the prior art, the liftable large truck mud guard provided by the invention has the following advantages:

according to the liftable mud guard for the large truck, the automatic lifting and locking functions of the mud guard for the truck can be realized through the driving mechanism and the locking mechanism, when the truck runs on a muddy road section, the height of the mud guard can be increased, and the phenomenon that mud is accumulated between a tire and the mud guard to form blockage is avoided; when the truck runs on a high-speed road section, the height of the mud guard cover can be reduced, so that sand and stones can be better prevented from splashing, the safety of pedestrians and vehicles coming from the rear can be protected, the truck can meet the running requirements of different road conditions, and the running adaptability of the truck is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

fig. 4 is a schematic diagram of the present invention in an unlocked state.

In the figure: 1-chassis frame, 2-displacement sensing mechanism, 21-displacement sensor, 22-telescopic sleeve, 3-driving mechanism, 31-hydraulic cylinder, 32-hydraulic telescopic rod, 4-latch mechanism, 41-guide part, 411-locking groove, 42-connecting part, 421-trapezoidal plate, 422-locking tongue, 423-transverse plate, 424-L type connecting block, 425-spring, 43-unlocking part, 431-micro hydraulic cylinder, 432-unlocking plate, 433-movable locking groove, 434-limiting groove, 435-limiting screw, 5-connecting frame, 6-synchronizing bracket and 7-mud guard cover.

Detailed Description

The technical scheme of the invention is further explained by combining the drawings and the embodiment as follows:

referring to fig. 1-4, the invention provides a liftable mud guard for a large truck, which comprises a chassis frame 1, wherein a displacement sensing mechanism 2, a driving mechanism 3 and a locking mechanism 4 are sequentially fixed on the chassis frame 1 from front to back, and the locking mechanism 4 comprises: guide part 41, link part 42 and unblock part 43, link part 42 sliding connection be in the inside of guide part 41, unblock part 43 laminating is installed one side of guide part 41, the upper end of link part 42 with actuating mechanism 3 fixed connection, lower extreme and link 5 fixed connection, displacement sensing mechanism 2 through synchronous support 6 with link 5 fixed connection, the lower extreme and the fender mud cover 7 fixed connection of link 5.

As a preferred embodiment, the displacement sensing mechanism 2 includes: displacement sensor 21, displacement sensor 21's lower extreme is provided with telescopic tube 22, telescopic tube 22's tip with synchronous support 6 fixed connection. The output end of the displacement sensor 21 is electrically connected with the input end of the central controller, the input end of the displacement sensor 21 is electrically connected with the output end of the hydraulic cylinder 31, and the input end of the hydraulic cylinder 31 is electrically connected with the output end of the central controller. During driving, the central controller controls the extension and contraction of the hydraulic cylinder 31 according to the vehicle speed information, and the displacement sensor 21 is used for monitoring the extension and contraction length of the hydraulic cylinder 31 and feeding the length information back to the central controller so as to control the extension and contraction length of the hydraulic cylinder 31.

In a preferred embodiment, the driving mechanism 3 includes a hydraulic cylinder 31, an output end of the hydraulic cylinder 31 is fixedly connected to a hydraulic telescopic rod 32, and an end of the hydraulic telescopic rod 32 is fixedly connected to the engaging member 42. The driving mechanism 3 provides power for the lifting of the mud guard 7.

As a preferred embodiment, a guide rail is arranged in the guide part 41, the engaging part 42 is slidably mounted in the guide rail, locking grooves 411 are formed on two side walls of the guide part 41, and the vertical length of the locking grooves 411 is a.

As a preferred embodiment, the engaging member 42 includes a sliding block, the sliding block is disposed inside the guide rail, the other end of the sliding block is provided with two parallel trapezoidal plates 421, a rotating shaft penetrates between the two trapezoidal plates 421, both ends of the rotating shaft are rotatably connected with locking tongues 422, the two locking tongues 422 are synchronously linked through a transverse plate 423, the lower ends of the two trapezoidal plates 421 are further fixedly connected with L-shaped engaging blocks 424, the L-shaped engaging blocks 424 engage the driving mechanism 3 with the connecting frame 5, springs 425 are further disposed on the L-shaped engaging blocks 424, one end of each spring 425 is fixedly connected with the L-shaped engaging blocks 424, and the other end of each spring 425 is fixedly connected with the transverse plate 423. The spring 425 can provide the tongue 422 with a tendency to insert into the locking slot 411 and the movable locking slot 433.

As a preferred embodiment, the unlocking member 43 includes: the miniature hydraulic cylinder 431 is fixed on the chassis frame 1, the output end of the miniature hydraulic cylinder 431 is fixedly connected with the unlocking plate 432, one side of the unlocking plate 432, which is close to the bolt 422, is provided with movable locking grooves 433 in one-to-one correspondence with the locking grooves 411, the locking grooves 411 and the movable locking grooves 433 are identical in size, and the bolt 422 is matched with the locking grooves 411 and the movable locking grooves 433 for use. When the unlocking is needed, the micro hydraulic cylinder 431 pushes the unlocking plate 432 to move downwards, the bolt 422 is separated from the locking groove 411 under the action of the unlocking plate 432, and the unlocking plate 432 blocks the upper stop and the middle stop, so that the bolt 422 slides into the lower stop.

As a preferred embodiment, the upper portion of the unlocking plate 432 is provided with a limiting groove 434, the length of the limiting groove 434 is equal to the vertical length of the locking groove 411, which is a, and a limiting screw 435 is further disposed in the limiting groove 434. The unlocking plate is limited to move downwards by a distance a by the limit groove 434 and the limit screw 435.

The working principle of the invention is as follows:

the latch mechanism divide into three fender position in the preferred this embodiment, is last fender, well fender and the next fender of difference. The upper gear is used for a muddy road section, and the speed of the automobile is 20 km/h; the middle gear is used for an urban road section, and the speed of the vehicle is between 20km/h and 60 km/h; the lower gear is used for national roads and high-speed road sections, and the speed of the lower gear is between 60km/h and 100 km/h.

When the speed of the truck is increased to 60km/h after the truck enters a national road, the locking mechanism 4 needs to be lowered from a middle gear to a low gear, when the central controller receives the speed of 60km/h, the micro hydraulic cylinder 431 pushes the unlocking plate 432 to move downwards, so that the bolt 422 is separated from the locking groove 411, the unlocking plate 432 blocks the upper gear and the middle gear, the central controller controls the hydraulic telescopic rod 32 of the hydraulic cylinder 31 to extend downwards to enable the connecting frame 5 to move downwards, the telescopic sleeve 22 of the displacement sensing mechanism 2 is displaced by the same distance as the connecting frame 5 under the action of the synchronous support 6, accurate displacement length information is obtained and fed back to the central controller, when the displacement length reaches the lower gear, the central controller sends an instruction to stop the hydraulic cylinder 31 to extend out, the bolt 422 is embedded into the lower gear to be fixed, and when the gear shifting needs to be upward, the hydraulic cylinder 31 only needs to drive the hydraulic telescopic rod 32 to move upward.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a big freight train fender mud cover of liftable, its characterized in that, includes chassis frame (1), chassis frame (1) is fixed with displacement sensing mechanism (2), actuating mechanism (3) and latch mechanism (4) by preceding in proper order after to, latch mechanism (4) include: guide part (41), joining part (42) and unblock part (43), joining part (42) sliding connection is in the inside of guide part (41), unblock part (43) laminating is installed one side of guide part (41), join in the upper end of part (42) with actuating mechanism (3) fixed connection, lower extreme and link (5) fixed connection, displacement sensing mechanism (2) through synchronous support (6) with link (5) fixed connection, the lower extreme and fender mud cover (7) fixed connection of link (5).

2. A liftable large truck mudguard according to claim 1, wherein said displacement sensing mechanism (2) comprises: displacement sensor (21), the lower extreme of displacement sensor (21) is provided with telescopic sleeve (22), telescopic sleeve (22) the tip with synchronizing bracket (6) fixed connection.

3. A liftable large truck mudguard according to claim 1, characterized in that said driving mechanism (3) comprises a hydraulic cylinder (31), the output end of said hydraulic cylinder (31) is fixedly connected with a hydraulic telescopic rod (32), and the end of said hydraulic telescopic rod (32) is fixedly connected with said engagement member (42).

4. A liftable large truck mudguard according to claim 1, characterized in that a guide rail is arranged in the guide member (41), the engaging member (42) is slidably mounted in the guide rail, and locking grooves (411) are formed on two side walls of the guide member (41).

5. The liftable large truck fender mud cover of claim 4, characterized in that, the linking part (42) includes a slider, the slider is disposed inside the guide rail, the other end of the slider is provided with two parallel trapezoidal plates (421), a rotating shaft is disposed between the two trapezoidal plates (421) in a penetrating manner, both ends of the rotating shaft are rotatably connected with lock tongues (422), the two lock tongues (422) are synchronously linked through a transverse plate (423), the lower ends of the two trapezoidal plates (421) are also fixedly connected with an L-shaped linking block (424), the L-shaped linking block (424) connects the driving mechanism (3) with the connecting frame (5), the L-shaped linking block (424) is further provided with a spring (425), one end of the spring (425) is fixedly connected with the L-shaped linking block (424), and the other end is fixedly connected with the transverse plate (423).

6. A liftable truck mudguard according to claim 5, characterized in that the unlocking member (43) comprises: miniature pneumatic cylinder (431) and unlocking plate (432), miniature pneumatic cylinder (431) are fixed on chassis frame (1), its output with unlocking plate (432) fixed connection, unlocking plate (432) are close to movable locked groove (433) with locked groove (411) one-to-one are seted up to one side of spring bolt (422), locked groove (411) are the same with movable locked groove (433) size of a dimension, spring bolt (422) with locked groove (411), movable locked groove (433) cooperation are used.

7. The liftable large truck mud guard according to claim 6, wherein a limit groove (434) is formed in the upper portion of the unlocking plate (432), the length of the limit groove (434) is equal to the vertical length of the locking groove (411), and a limit screw (435) is further arranged in the limit groove (434).