Commercial vehicle door check mounting and sealing structure

Abstract

The present application relates to a commercial vehicle door check mounting and sealing structure, comprising: a cab body, comprising a side wall door frame, wherein a vehicle door is connected to the side wall door frame by means of a door hinge, and a mounting hole for mounting a door check is formed at the end of an A pillar of the side wall door frame close to a floor; and the door check, wherein the door check comprises a check housing fixed in the side wall door frame by means of the mounting hole, and a check arm having one end rotatably connected to the vehicle door is slidably connected in the check housing. In the commercial vehicle door check mounting and sealing structure of the embodiments of the present application, the door check is arranged on the side wall door frame, and is located at the end of the A pillar of the side wall door frame close to the floor. On the one hand, the door check is mounted on the interior of the side wall door frame by means of the mounting hole of the side wall door frame, thereby solving the problem of the complexity of mounting and dismounting for maintenance of the door check, and saving manpower and material resources. On the other hand, the door check is arranged in the side wall door frame, allowing for door glass to be fully lowered without interfering with the movement of the vehicle window.

Description

Commercial vehicle door stopper mounting and sealing structure TECHNICAL FIELD

[0001] The present application relates to the technical field of commercial vehicle cabs, in particular to a commercial vehicle door stopper mounting and sealing structure. BACKGROUND

[0002] Currently, with the development of science and technology, people's living standards are improving, and the requirements for vehicle performance are also increasing; the door stopper is a kind of vehicle part for limiting the door, which has the function of limiting the opening and closing degree of the door. The door stopper is generally arranged between the upper and lower hinges of the door, which can limit some specific positions of the door, so that the door can neither close nor open automatically.

[0003] On the one hand, it can limit the maximum opening angle of the door to prevent the outer plate of the door from colliding with the vehicle body; on the other hand, it can control the door to remain open according to actual needs, for example, when the vehicle is parked on a slope or it is windy, it can prevent the door from closing automatically. Thus, the door has a limiting function, which increases the satisfaction of consumers in use.

[0004] In related technologies, the existing door stopper is arranged in the door panel, and the stopper housing has two bolts. During installation, the worker needs to put one hand into the panel to align the stopper bolt and the limiting arm with the hole in the inner plate of the door, and the other hand is used to install and tighten the nut from the outside. The installation process is complex and time-consuming.

[0005] When the stopper needs to be replaced due to failure, the inner trim panel and the waterproof curtain of the door accessories need to be disassembled first, and then the stopper can be removed. The maintenance process is very complex and consumes manpower and resources.

[0006] Since the inside of the door panel is not sealed and has a drainage hole, when the vehicle is driven in a sandy environment, sand and dust enter the inside of the door panel through the door drainage hole and adhere to the door stopper, which may cause abnormal noise of the door stopper.

[0007] The commercial vehicle door is heavy, and the greater the hinge spacing, the better. Therefore, the door stopper can only be arranged between the two hinges in the height direction of the door. The movement envelope of the door stopper at this height will block the glass lowering stroke, resulting in more head exposure after the glass is lowered, which is inconvenient for the driver and passengers. SUMMARY

[0008] The embodiments of the present application provide a commercial vehicle door stopper mounting and sealing structure to solve the problem that the door stopper is arranged on the door and located between the two hinges in related technologies, and the movement envelope of the door stopper at this height will block the glass lowering stroke.

[0009] The embodiment of the application provides a commercial vehicle door stopper mounting and sealing structure, which comprises:

[0010] The cab body comprises a side door frame connected with a door through a door hinge, and an A column of the side door frame is provided with a mounting hole for mounting a door stopper at one end close to a floor;

[0011] The door stopper comprises a stopper housing fixed in the side door frame through the mounting hole, and a limiting arm with one end rotatably connected with the door is slidably connected in the stopper housing.

[0012] The commercial vehicle door stopper mounting and sealing structure of the embodiment of the application arranges the door stopper on the side door frame and at one end of the A column of the side door frame close to the floor, so that the door stopper is conveniently mounted from outside to inside.

[0013] On the one hand, the door stopper is mounted in the side door frame through the mounting hole of the side door frame, so that the problems of complicated installation and maintenance and disassembly of the door stopper are solved, and manpower and material resources are saved. On the other hand, after the door stopper is arranged in the side door frame, the door glass can be completely lowered, and the passing property of the vehicle window is not affected.

[0014] In some embodiments: the door stopper further comprises a side wall mounting plate fixedly connected with the stopper housing, a through hole for penetrating a fastener is formed in the side wall mounting plate, and a sliding hole for penetrating the limiting arm is formed in the side wall mounting plate;

[0015] A threaded hole is formed in the side door frame and located at the outer periphery of the mounting hole and matched with the through hole, and the fastener is sequentially penetrated into the through hole and the threaded hole to fix the side wall mounting plate on the outer wall of the side door frame.

[0016] In the embodiment of the application, the threaded hole is formed in the side door frame and located at the outer periphery of the mounting hole and matched with the through hole, and when the side wall mounting plate and the stopper housing are jointly mounted on the side door frame, the fastener is sequentially penetrated into the through hole of the side wall mounting plate and the threaded hole of the side door frame, and then the side wall mounting plate is fixed on the outer wall of the side door frame 110 by tightening the fastener.

[0017] In the related art, the door stopper is mounted in the door, and when the door stopper is mounted, the door stopper is first arranged in the door panel, the stopper housing is provided with two bolts, and the worker needs to put one hand into the panel to align the bolt on the stopper housing and the limiting arm with the hole of the inner plate of the door and penetrate out. The other hand is on the outside of the door to screw the nut and install and tighten, and the installation process is complex and time-consuming.

[0018] In this application, when installing the door limiter, the limiter arm, the limiter housing, and the side panel mounting plate are aligned with the mounting holes in sequence on the outside of the side panel door frame. Then, fasteners are inserted into the through holes of the side panel mounting plate and the threaded holes on the side panel door frame and tightened to install and fix the door limiter on the side panel door frame. The installation procedure is simpler and more efficient.

[0019] In some embodiments, a sealing gasket of the same shape as the side panel mounting plate is provided between the side panel mounting plate and the side door frame. The sealing gasket is used to fill the gap between the side panel mounting plate and the side door frame to prevent external sand and dust from entering the door limiter and causing abnormal noise.

[0020] In some embodiments: a sealing sleeve is snapped onto one end of the limiting arm near the door, and the sealing sleeve is adapted to a sliding hole on the side mounting plate;

[0021] When the door is closed, the limiting arm moves the sealing sleeve toward the side door frame until the sealing sleeve seals within the sliding hole. The sealing sleeve seals the gap between the sliding hole and the limiting arm to prevent external dust from entering the door limiter and causing abnormal noise.

[0022] In some embodiments: the end of the limiting arm near the vehicle door is provided with an annular groove for connecting the sealing sleeve, and the sealing sleeve is snapped into the annular groove to restrict the sliding of the sealing sleeve on the limiting arm.

[0023] In some embodiments: the end of the limiting arm near the vehicle door is provided with a positioning groove that restricts the sealing sleeve from rotating circumferentially on the limiting arm, and a positioning block that is adapted to the positioning groove protrudes from the sealing sleeve and is located in the positioning groove.

[0024] In some embodiments: one end of the limiting arm connected to the door is rotatably connected to a door mounting bracket, the door mounting bracket is connected to the limiting arm via a pivot, and the door mounting bracket is connected to the inner panel of the door via fasteners.

[0025] In some embodiments: a side panel is fixedly connected to the inner side of the side door frame, and an avoidance hole is provided on the side panel for the limiting arm to extend into. A dust cover with an opening at one end and closed around the perimeter is connected to the side of the side panel away from the side door frame. The dust cover closes the avoidance hole and partially accommodates the limiting arm.

[0026] In some embodiments: the dust cover is an injection molded part, and the outer wall of the opening end of the dust cover is provided with an annular groove for engaging the inner side panel. The annular groove passes through the clearance hole and engages with the inner side panel. The opening end of the dust cover is sealed to the limiter housing.

[0027] The dust cover in this embodiment is used to prevent the limiting arm from being exposed. The end of the limiting arm away from the door is located inside the dust cover, so that the limiting arm is in a closed cavity, avoiding the problem of abnormal noise caused by external sand and dust coming into contact with the limiting arm. The opening end of the dust cover is sealed to the limiter housing, and the limiter housing blocks the opening end of the dust cover to prevent sand and dust from entering the interior of the dust cover from the opening end.

[0028] In some embodiments, the limiting arm has an overall “~” shaped curved structure.

[0029] The beneficial effects of the technical solution provided in this application include:

[0030] This application provides a commercial vehicle door limiter installation and sealing structure. The commercial vehicle door limiter installation and sealing structure includes a cab body, which comprises a side door frame connected to a door via a door hinge. An installation hole for installing the door limiter is provided at the A-pillar end of the side door frame near the floor. The door limiter includes a limiter housing fixed inside the side door frame via the installation hole, and a limiter arm slidably connected within the limiter housing, one end of which is rotatably connected to the door.

[0031] Therefore, the commercial vehicle door limiter installation and sealing structure of this application embodiment arranges the door limiter on the side door frame, specifically at the A-pillar end of the side door near the floor. Arranging the door limiter on the side door frame facilitates installation from the outside in. On one hand, the door limiter is installed inside the side door frame through mounting holes, solving the problem of complex installation, maintenance, and disassembly of the door limiter, saving manpower and resources. On the other hand, arranging the door limiter inside the side door frame allows the door glass to be fully lowered without affecting window accessibility. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 is a structural schematic diagram of an embodiment of this application;

[0034] Figure 2 is a magnified view of part A in Figure 1;

[0035] Figure 3 is a schematic diagram of the door limiter installed on the side door frame according to an embodiment of this application;

[0036] Figure 4 is a cross-sectional view of the door limiter installed on the side door frame according to an embodiment of this application;

[0037] Figure 5 is an exploded view of the door limiter installed on the side door frame according to an embodiment of this application;

[0038] Figure 6 is a schematic diagram of the dust cover installed on the inner side panel according to an embodiment of this application;

[0039] Figure 7 is a structural schematic diagram of the door limiter according to an embodiment of this application;

[0040] Figure 8 is a partial structural schematic diagram of the door limiter according to an embodiment of this application;

[0041] Figure 9 is a schematic diagram of the structure of the limiting arm according to an embodiment of this application;

[0042] Figure 10 is a schematic diagram of the structure of the sealing sleeve according to an embodiment of this application.

[0043] Reference numerals: 100, Cab body; 110, Side door frame; 111, A-pillar; 112, Mounting hole; 113, Threaded hole; 114, Side inner panel; 120, Floor; 130, Door; 140, Door hinge; 200, Door limiter; 210, Limiter housing; 220, Limiting arm; 221, Annular groove; 222, Positioning groove; 230, Side mounting plate; 231, Fastener; 240, Sealing gasket; 250, Dust cover; 251, Annular groove; 260, Sealing sleeve; 261, Positioning block; 270, Door mounting bracket. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] This application provides a commercial vehicle door limiter installation and sealing structure, which can solve the problem in related technologies where the door limiter is arranged on the door and located between two hinges, and the motion envelope of the door limiter at this height will block the downward stroke of the glass.

[0046] Referring to Figures 1 to 5, this application embodiment provides a commercial vehicle door limiter installation and sealing structure, including:

[0047] The cab body 100 includes a side door frame 110, which is connected to a door 130 via a door hinge 140. The door 130 opens or closes the side door frame 110 by pivoting on the door hinge 140. A mounting hole 112 for installing a door limiter 200 is provided at the A-pillar 111 of the side door frame 110 near the floor 120.

[0048] The door limiter 200 includes a limiter housing 210 fixed inside the side door frame 110 through a mounting hole 112. A limiter arm 220 is slidably connected inside the limiter housing 210, with one end rotatably connected to the door 130. The two ends of the limiter arm 220 are respectively connected to the limiter housing 210 and the door 130 to keep the door 130 at a set opening.

[0049] The commercial vehicle door limiter installation and sealing structure of this application embodiment arranges the door limiter 200 on the side door frame 110, and is located at the end of the side door frame 110 near the floor 120 at the A-pillar 111. Arranging the door limiter 200 on the side door frame 110 facilitates the installation of the door limiter 200 from the outside to the inside.

[0050] On the one hand, the door limiter 200 is installed inside the side door frame 110 through the mounting hole 112, which solves the problem of complicated installation, maintenance and disassembly of the door limiter 200 and saves manpower and resources. On the other hand, the door limiter 200, when placed inside the side door frame 110, allows the door glass to be fully lowered without affecting the passage of the window.

[0051] In some alternative embodiments: Referring to Figures 2 to 5, this application provides a commercial vehicle door limiter installation and sealing structure. The door limiter 200 of the commercial vehicle door limiter installation and sealing structure also includes a side mounting plate 230 fixedly connected to the limiter housing 210. The side mounting plate 230 and one end of the limiter housing 210 are fixedly connected to each other to form an integral whole.

[0052] A through hole is provided on the side mounting plate 230 for inserting a fastener 231. The through hole is used to insert the fastener 231 to fix the side mounting plate 230 to the side door frame 110. A sliding hole is provided for inserting the limiting arm 220. The sliding hole is used to avoid the limiting arm 220, so that the limiting arm 220 passes through the side mounting plate 230 and enters the limiter housing 210.

[0053] A threaded hole 113 is provided on the side frame 110, located on the outer periphery of the mounting hole 112 and adapted to the through hole. When the side mounting plate 230 and the limiter housing 210 are installed together on the side frame 110, the fastener 231 is inserted into the through hole of the side mounting plate 230 and the threaded hole 113 on the side frame 110 in sequence, and then the side mounting plate 230 is fixed to the outer wall of the side frame 110 by fastening the fastener 231.

[0054] In related technologies, the door limiter 200 is installed inside the door 130. When installing the door limiter 200, it is first necessary to place it inside the door sheet metal. The limiter housing 210 has two bolts. During installation, the worker needs to reach inside the sheet metal with one hand to align the bolts on the limiter housing 210 and the limiter arm 220 with the holes in the inner door panel. The other hand is used to tighten the nuts on the outside of the door 130. The installation process is complex and time-consuming.

[0055] In this application, when installing the door limiter 200, the limiting arm 220, the limiter housing 210, and the side mounting plate 230 are aligned with the mounting hole 112 on the outside of the side door frame 110 in sequence. Then, the fastener 231 is inserted into the through hole of the side mounting plate 230 and the threaded hole 113 on the side door frame 110 and tightened to install and fix the door limiter 200 on the side door frame 110. The installation procedure is simpler and more efficient.

[0056] In some alternative embodiments: Referring to Figures 4, 5 and 7, this application provides a commercial vehicle door limiter mounting and sealing structure. The side mounting plate 230 of the commercial vehicle door limiter mounting and sealing structure is further provided with a sealing gasket 240 with the same shape as the side mounting plate 230 between the side door frame 110 and the side mounting plate 230. The sealing gasket 240 is used to fill the gap between the side mounting plate 230 and the side door frame 110 to prevent external sand and dust from entering the door limiter 200 and causing abnormal noise.

[0057] In some alternative embodiments: Referring to Figures 3, 4, 5 and 7, this application provides a commercial vehicle door limiter mounting and sealing structure. The limiting arm 220 of the commercial vehicle door limiter mounting and sealing structure is snapped to a sealing sleeve 260 near the end of the door 130. The sealing sleeve 260 is adapted to the sliding hole on the side mounting plate 230.

[0058] When the door 130 is closed, the limiting arm 220 moves the sealing sleeve 260 toward the side door frame 110 until the sealing sleeve 260 seals the sliding hole. The sealing sleeve 260 seals the gap between the sliding hole and the limiting arm 220 to prevent external sand and dust from entering the door limiter 200 and causing abnormal noise.

[0059] In some alternative embodiments: Referring to Figures 8 to 10, this application provides a commercial vehicle door limiter installation and sealing structure. The limiting arm 220 of the commercial vehicle door limiter installation and sealing structure has an annular groove 221 for connecting a sealing sleeve 260 at one end near the door 130. The sealing sleeve 260 is snapped into the annular groove 221 to restrict the sliding of the sealing sleeve 260 on the limiting arm 220.

[0060] The lateral cross-section of the limiting arm 220 is rectangular. The annular groove 221 is opened around the limiting arm 220. The sealing sleeve 260 is also roughly rectangular. The center of the sealing sleeve 260 has a through hole that fits onto the limiting arm 220. When the sealing sleeve 260 is fitted onto the limiting arm 220, it is press-fitted with the annular groove 221 to seal the gap between the sealing sleeve 260 and the limiting arm 220.

[0061] The end of the limiting arm 220 near the connecting door 130 is provided with a positioning groove 222 that restricts the circumferential rotation of the sealing sleeve 260 on the limiting arm 220. A positioning block 261 protrudes from the sealing sleeve 260 and is adapted to fit the positioning groove 222. The positioning block 261 is located within the positioning groove 222. There are four positioning grooves 222, each located between two adjacent side walls of the limiting arm 220.

[0062] The positioning block 261 has four pieces and is integrally formed with the sealing sleeve 260. When the positioning block 261 is inserted into the positioning slot 222, the positioning slot 222 and the positioning block 261 cooperate with each other to restrict the sealing sleeve 260 from rotating circumferentially on the limiting arm 220, so that the sealing sleeve 260 can reliably seal with the sliding hole on the side mounting plate 230.

[0063] In some alternative embodiments: Referring to Figures 2, 7, and 8, this application provides a commercial vehicle door limiter mounting and sealing structure. One end of the limiting arm 220 of this commercial vehicle door limiter mounting and sealing structure, which connects to the door 130, is rotatably connected to a door mounting bracket 270. The door mounting bracket 270 is installed at the bottom of the inner door panel. The door mounting bracket 270 is connected to the limiting arm 220 via a pivot, and the door mounting bracket 270 is connected to the inner door panel via fasteners 231.

[0064] When the door 130 rotates from the closed state to the open state, the door 130 drives the limiting arm 220 to gradually pull out from the limiter housing 210 via the door mounting bracket 270. Since the movement trajectory of the door mounting bracket 270 is towards the outside and front of the side door frame 110, the door mounting bracket 270 is rotatably connected to the limiting arm 220 via a pivot, allowing the door 130 to open and close freely.

[0065] The limiting arm 220 has an overall "~" shaped curved structure, which facilitates its connection to the door 130 and allows it to move along the trajectory of the door mounting bracket 270, preventing jamming, wear, and abnormal noise between the limiting arm 220 and the limiter housing 210. The limiting arm 220 includes a metal frame and a rubber layer covering the outer periphery of the metal frame. The rubber layer is used to prevent abnormal noise when the door limiter 200 moves.

[0066] In some alternative embodiments: Referring to Figures 4 and 6, this application provides a commercial vehicle door limiter mounting and sealing structure. A side panel 114 is fixedly connected to the inner side of the side frame 110 of this commercial vehicle door limiter mounting and sealing structure. An allowance hole for the limiting arm 220 to extend into is provided on the side panel 114. A dust cover 250 with an open end and closed perimeter is connected to the side of the side panel 114 away from the side frame 110. The dust cover 250 is used to close the allowance hole and partially accommodate the limiting arm 220, preventing the limiting arm 220 from being exposed.

[0067] The dust cover 250 is an injection-molded part located below the floor 120. The outer wall of the opening end of the dust cover 250 is provided with an annular groove 251 for engaging the inner side panel 114. The annular groove 251 passes through the clearance hole and engages with the inner side panel. The opening end of the dust cover 250 is sealed to the limiter housing 210.

[0068] The dust cover 250 is used to prevent the limiting arm 220 from being exposed. The end of the limiting arm 220 away from the door 130 is located inside the dust cover 250, so that the limiting arm 220 is in a closed cavity, avoiding the problem of abnormal noise caused by external sand and dust coming into contact with the limiting arm 220. The open end of the dust cover 250 is sealed to the limiter housing 210, and the limiter housing 210 blocks the open end of the dust cover 250 to prevent sand and dust from entering the interior of the dust cover 250 from the open end.

[0069] Working principle

[0070] This application provides a commercial vehicle door limiter installation and sealing structure. The commercial vehicle door limiter installation and sealing structure of this application includes a cab body 100, which includes a side door frame 110. The side door frame 110 is connected to a door 130 via a door hinge 140. A mounting hole 112 for installing a door limiter 200 is provided at one end of the A-pillar 111 of the side door frame 110 near the floor 120. The door limiter 200 includes a limiter housing 210 fixed inside the side door frame 110 through the mounting hole 112. A limiter arm 220 is slidably connected inside the limiter housing 210, with one end rotatably connected to the door 130.

[0071] Therefore, the commercial vehicle door limiter installation and sealing structure of this application embodiment arranges the door limiter 200 on the side door frame 110, and is located at the end of the side door frame 110 near the floor 120 at the A-pillar 111. Arranging the door limiter 200 on the side door frame 110 facilitates the installation of the door limiter 200 from the outside to the inside. On the one hand, the door limiter 200 is installed inside the side door frame 110 through the mounting hole 112, which solves the problem of complex installation, maintenance and disassembly of the door limiter 200, saving manpower and resources. On the other hand, the door limiter 200 being arranged inside the side door frame 110 allows the door glass to be fully lowered without affecting the window's passability.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A commercial vehicle door check mounting and sealing structure, characterized by, The utility model relates to a commercial vehicle door stopper installation and sealing structure, including: A cab body (100) including a side door frame (110) connected with a door (130) through a door hinge (140), an A column (111) of the side door frame (110) is provided with a mounting hole (112) for installing a door stopper (200) at one end close to a floor (120); The door stopper (200) includes a stopper shell (210) fixed inside the side door frame (110) through the mounting hole (112), and a limiting arm (220) rotatably connected with the door (130) at one end is slidably connected in the stopper shell (210).

2. The commercial vehicle door stopper installation and sealing structure of claim 1, wherein: The door stopper (200) further includes a side wall mounting plate (230) fixedly connected with the stopper shell (210), the side wall mounting plate (230) is provided with a through hole for penetrating a fastener (231) and a sliding hole for penetrating the limiting arm (220); The side door frame (110) is provided with a threaded hole (113) located at the outer periphery of the mounting hole (112) and matched with the through hole, and the fastener (231) is sequentially penetrated into the through hole and the threaded hole (113) to fix the side wall mounting plate (230) on the outer wall of the side door frame (110).

3. The commercial vehicle door stopper installation and sealing structure of claim 2, wherein: A sealing gasket (240) with the same shape as the side wall mounting plate (230) is further arranged between the side wall mounting plate (230) and the side door frame (110), and the sealing gasket (240) is used to fill the gap between the side wall mounting plate (230) and the side door frame (110).

4. The commercial vehicle door stopper installation and sealing structure of claim 2, wherein: A sealing sleeve (260) is snap-connected to the end of the limiting arm (220) close to the door (130), and the sealing sleeve (260) is matched with the sliding hole on the side wall mounting plate (230); When the door (130) is closed, the limiting arm (220) drives the sealing sleeve (260) to move towards the side door frame (110) until the sealing sleeve (260) is sealed in the sliding hole.

5. The commercial vehicle door stopper installation and sealing structure of claim 4, wherein: The limiting arm (220) is provided with an annular clamping groove (221) at the end close to the door (130) for connecting the sealing sleeve (260), and the sealing sleeve (260) is snap-connected in the annular clamping groove (221) to limit the sliding of the sealing sleeve (260) on the limiting arm (220).

6. The commercial vehicle door stopper installation and sealing structure of claim 4, wherein: The limiting arm (220) is provided with a positioning clamping groove (222) near one end connected with the door (130) for limiting the circumferential rotation of the sealing sleeve (260) on the limiting arm (220), the sealing sleeve (260) is provided with a positioning clamping block (261) matching with the positioning clamping groove (222), and the positioning clamping block (261) is located in the positioning clamping groove (222).

7. The commercial vehicle door limiter mounting and sealing structure of claim 1, wherein: One end of the limiting arm (220) connected with the door (130) is rotatably connected with a door mounting bracket (270), the door mounting bracket (270) is connected with the limiting arm (220) through a rotating shaft, and the door mounting bracket (270) is connected with the inner door panel of the door (130) through fasteners (231).

8. The commercial vehicle door limiter mounting and sealing structure of claim 1, wherein: The inner side of the side wall door frame (110) is fixedly connected with a side wall inner panel (114), the side wall inner panel (114) is provided with a avoiding hole extending into the limiting arm (220), and the side away from the side wall door frame (110) of the side wall inner panel (114) is connected with a dust cover (250) with an open end and a closed periphery, the dust cover (250) seals the avoiding hole and partially contains the limiting arm (220).

9. The commercial vehicle door limiter mounting and sealing structure of claim 8, wherein: The dust cover (250) is an injection molding part, the outer wall of the open end of the dust cover (250) is provided with an annular groove (251) clamping the side wall inner panel (114), the annular groove (251) is inserted into the avoiding hole and clamped with the side wall inner panel (114), and the open end of the dust cover (250) is sealingly connected with the limiter housing (210).

10. The commercial vehicle door limiter mounting and sealing structure of claim 1, wherein: The limiting arm (220) is in a whole "~" shaped curve structure.

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