A dust isolation door for automobile

Abstract

The present invention belongs to the technical field of automobile doors, and specifically relates to a dust isolation door for automobiles; it comprises an isolation door frame, an automobile door body, a latch positioning mechanism and an extrusion sealing mechanism, wherein the automobile door body is provided inside the isolation door frame, the automobile door body is provided with a latch positioning mechanism, and an extrusion sealing mechanism is provided between the automobile door body and the isolation door frame; the present invention facilitates the stable positioning of the isolation door, avoids the isolation door from easily opening during the closing process, and improves the closing stability; at the same time, it facilitates further extrusion of the isolation door sealing structure, so that the sealing time of the sealing structure is longer, thereby improving the sealing convenience of the present invention.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile doors, and particularly relates to a dust isolation door for automobiles. Background Art

[0002] Conventional automotive dust isolation doors on the market lack stable positioning when closed. In the event of a dust explosion, the doors can easily open under the impact, rendering them ineffective in providing isolation and protection. Existing automotive dust isolation doors lack a corresponding extrusion structure at the seal, and the sealing strips become loose after a period of use, failing to meet initial sealing requirements and affecting the door's sealing performance. This requires regular replacement of the sealing strips, which is not only time-consuming and labor-intensive, but also increases operating costs. Therefore, there is an urgent need for an automotive dust isolation door that addresses this issue. Summary of the Invention

[0003] In order to overcome the above problems, the present invention provides a dust isolation door for automobiles; it includes a high-strength steel wire rod, a telescopic rod, a follow-up vertical plate, a positioning rod, a limiting cross bar, a sheet-like extrusion frame, an adjusting push piece and an externally threaded adjusting rod. The telescopic rod is inserted into the right side of the fixed seat, and the right end face of the telescopic rod is welded with a follow-up vertical plate. The limiting cross bars are symmetrically inserted on the upper and lower sides of the follow-up vertical plate, and the right end face of the follow-up vertical plate is symmetrically connected with the positioning rods on the upper and lower sides. This design solves the problem that the original isolation door has poor positioning effect during the closing process. Adjustment push pieces are symmetrically embedded on the left and right sides and the upper and lower sides of the automobile door body, and a sheet-like extrusion frame is embedded on the rear end face of a small stainless steel compression spring. This design solves the problem that the original isolation door sealing structure does not have extrusion ability, resulting in poor sealing timeliness. The present invention has a reasonable structure, good positioning stability, strong sealing performance, and a wide range of applications.

[0004] A dust isolation door for an automobile comprises an isolation door frame 1, an automobile door body 2, a latch positioning mechanism 3, and an extrusion sealing mechanism 4. The automobile door body 2 is disposed inside the isolation door frame 1, the latch positioning mechanism 3 is disposed on the front end surface of the automobile door body 2, and multiple groups of extrusion sealing mechanisms 4 are disposed between the automobile door body 2 and the isolation door frame 1.

[0005] The latch positioning mechanism 3 includes a fixed seat 31, a high-strength steel screw rod 32, a telescopic rod 33, a follower vertical plate 34, a positioning plug rod 35, a positioning seat 37, a supporting mechanism, a rotating disk 321, and a rectangular telescopic rod 324; wherein the fixed seat 31 is fixed to the left side of the front end face of the automobile door body 2, a high-strength steel screw rod 32 is provided on the left side of the fixed seat 31, the left side of the high-strength steel screw rod 32 is matched in the fixed seat 31 through a limiting ring 311, and the left end of the rectangular telescopic rod 324 is fixed with a rotating disk 321, and the right side is inserted in the high-strength steel screw rod 32. The steel screw rod 32 is fastened to the high-strength steel screw rod 32 by a hand-turned positioning screw 323. A telescopic rod 33 is inserted into the right side of the fixing seat 31. At the same time, the high-strength steel screw rod 32 is threadedly connected to the telescopic rod 33. A follower vertical plate 34 is fixed to the right side of the telescopic rod 33. The upper and lower ends of the follower vertical plate 34 are respectively sleeved in the support mechanism on the front end surface of the automobile door body 2, and the upper and lower ends of the right side of the follower vertical plate 34 are respectively provided with positioning rods 35. The positioning rod 35 is connected in conjunction with the positioning seat 37 fixed to the right side of the front end of the isolation door frame 1;

[0006] The extrusion sealing mechanism 4 includes an EPDM sealing strip 41, a sheet-like extrusion frame 42, a small stainless steel compression spring 43, an adjustment push piece 44, a follower block 45, an external thread adjustment rod 46, a detachable baffle 47 and an oil-resistant silicone rubber sealing frame 48; wherein a cavity is provided in the automobile door body 2, a detachable baffle 47 is provided on the front end surface of the automobile door body 2 at the end of the cavity, and an adjustment push piece 44 and a sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity at the rear end of the detachable baffle 47, and the adjustment push piece 44 and the sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity, and the adjustment push piece 44 and the sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity. A small stainless steel compression spring 43 is provided between the sheet 44 and the sheet-like extrusion frame 42. At the same time, an oil-resistant silicone rubber sealing frame 48 is bonded to the rear end face of the sheet-like extrusion frame 42. An EPDM sealing strip 41 is bonded to the inner wall of the isolation door frame 1, and the EPDM sealing strip 41 is in contact with the corresponding oil-resistant silicone rubber sealing frame 48; the externally threaded adjustment rod 46 passes through the detachable baffle 47 and is connected to the adjustment push piece 44 through the follower block 45, and the externally threaded adjustment rod 46 is threadedly connected to the detachable baffle 47.

[0007] The left side of the front end face of the automobile door body 2 is connected to the isolation door frame 1 through a heavy hinge 21, and a door handle 22 is provided on the right side of the front end face of the automobile door body 2.

[0008] The support mechanism includes a fixed side plate 38 and a limiting cross bar 39, wherein the upper and lower ends of the follower vertical plate 34 are respectively sleeved in the upper and lower limiting cross bars 39, and the left and right sides of the limiting cross bars 39 are respectively fixed to the front end surface of the automobile door body 2 through the fixed side plates 38.

[0009] It also includes a limit seat 36, wherein the limit seats 36 are fixed at the upper and lower ends of the right side of the front end surface of the automobile door body 2 respectively, one end of the positioning rod 35 is fixed on the follower vertical plate 34, and the other end passes through the corresponding limit seat 36 and is connected to the positioning seat 37.

[0010] The high-strength steel screw rod 32 has a rectangular cavity 322 on the left side thereof, and a rectangular telescopic rod 324 is inserted into the rectangular cavity 322.

[0011] A storage cavity is provided at the front end of the fixing seat 31, in which the high-strength steel screw rod 32 and the follower vertical plate 34 are both fitted. A detachable limit cover is installed on the left side of the front end of the fixing seat 31, and a limit ring 311 is fitted in the detachable limit cover. The left side of the high-strength steel screw rod 32 is sleeved in the limit ring 311.

[0012] An internal thread cavity is formed on the inner wall of the telescopic rod 33 , and a high-strength steel screw rod 32 is threadedly connected in the internal thread cavity.

[0013] A first reinforcing oblique piece is welded between the telescopic rod 33 and the follower vertical plate 34 , and a second reinforcing oblique piece is welded between the positioning rod 35 and the follower vertical plate 34 .

[0014] A set of extrusion sealing mechanisms 4 is provided between the four corners of the automobile door body 2 and the isolation door frame 1 .

[0015] A hexagonal clamp 461 is fixed to the front end of the external thread adjustment rod 46 located outside the detachable blocking piece 47 .

[0016] Beneficial effects of the present invention:

[0017] The present invention adds a fixed seat, a high-strength steel screw rod, a telescopic rod, a follow-up vertical plate, a positioning rod and a limiting cross bar. This design facilitates the stable positioning of the isolation door, prevents the isolation door from easily opening during the closing process, solves the problem of poor positioning effect of the original isolation door during the closing process, and improves the closing stability of the isolation door.

[0018] The present invention adds an EPDM sealing strip, a sheet extrusion frame, a small stainless steel compression spring, an adjustment push piece, an externally threaded adjustment rod and an oil-resistant silicone rubber sealing frame. This design facilitates further extrusion of the isolation door sealing structure, making the sealing structure more effective for a longer period of time, solving the problem that the original isolation door sealing structure does not have the extrusion ability, resulting in poor sealing timeliness, and improving the sealing convenience of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 is a front cross-sectional view of the latch positioning mechanism of the present invention;

[0022] Figure 3 is an extrusion sealing mechanism and a top cross-sectional view of the extrusion sealing mechanism of the present invention;

[0023] Figure 4 for Figure 3 A magnified view of middle A;

[0024] In the figure: 1-isolation door frame, 2-car door body, 21-heavy-duty hinge, 22-door handle, 3-latch positioning mechanism, 31-fixed seat, 32-high-strength steel screw, 321-rotating plate, 322-rectangular cavity, 323-hand-turn positioning screw, 324-rectangular telescopic rod, 33-telescopic rod, 34-follow-up vertical plate, 35-positioning plug rod, 36-limiting seat, 37-positioning seat, 38-fixed side plate, 39-limiting cross bar, 311-limiting ring, 4-extrusion sealing mechanism, 41-EPDM sealing strip, 42-sheet extrusion frame, 43-stainless steel small compression spring, 44-adjusting push piece, 441-anti-slip ring, 45-follow-up block, 46-externally threaded adjusting rod, 461-hexagonal clamp, 47-detachable baffle, 48-oil-resistant silicone rubber sealing frame. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0026] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] Example 1

[0030] A dust isolation door for an automobile comprises an isolation door frame 1, an automobile door body 2, a latch positioning mechanism 3, and an extrusion sealing mechanism 4. The automobile door body 2 is disposed inside the isolation door frame 1, the latch positioning mechanism 3 is disposed on the front end surface of the automobile door body 2, and multiple groups of extrusion sealing mechanisms 4 are disposed between the automobile door body 2 and the isolation door frame 1.

[0031] The latch positioning mechanism 3 includes a fixed seat 31, a high-strength steel screw rod 32, a telescopic rod 33, a follower vertical plate 34, a positioning plug rod 35, a positioning seat 37, a supporting mechanism, a rotating disk 321, and a rectangular telescopic rod 324; wherein the fixed seat 31 is fixed to the left side of the front end face of the automobile door body 2, and a high-strength steel screw rod 32 is provided on the left side of the front end of the fixed seat 31. The left side of the high-strength steel screw rod 32 is matched in the fixed seat 31 through a limiting ring 311 (a limiting ring 311 is sleeved on the left side of the annular side of the high-strength steel screw rod 32, and the limiting ring 311 is matched and connected in the fixed seat 31). A rotating disk 321 is fixed to the left end portion, and the right side is inserted into a high-strength steel screw rod 32 and fastened to the high-strength steel screw rod 32 by a hand-tightened positioning screw 323. A telescopic rod 33 is inserted into the right side of the front end of the fixing seat 31. The high-strength steel screw rod 32 is threadedly connected to the telescopic rod 33, and a follower vertical plate 34 is fixed to the right side of the telescopic rod 33. The upper and lower ends of the follower vertical plate 34 are respectively sleeved in the support mechanism on the front face of the automobile door body 2. Positioning rods 35 are respectively provided at the upper and lower ends of the right side of the follower vertical plate 34. The positioning rods 35 are cooperatively connected to the positioning seat 37 fixed to the right side of the front face of the isolation door frame 1.

[0032] The extrusion sealing mechanism 4 includes an EPDM sealing strip 41, a sheet-like extrusion frame 42, a small stainless steel compression spring 43, an adjustment push piece 44, a follower block 45, an external thread adjustment rod 46, a detachable baffle 47 and an oil-resistant silicone rubber sealing frame 48; wherein a cavity is provided in the automobile door body 2, a detachable baffle 47 is provided on the front end surface of the automobile door body 2 at the end of the cavity, and an adjustment push piece 44 and a sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity at the rear end of the detachable baffle 47, and the adjustment push piece 44 and the sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity, and the adjustment push piece 44 and the sheet-like extrusion frame 42 are embedded in the automobile door body 2 cavity. A small stainless steel compression spring 43 is provided between the sheet 44 and the sheet-like extrusion frame 42. At the same time, an oil-resistant silicone rubber sealing frame 48 is bonded to the rear end face of the sheet-like extrusion frame 42. An EPDM sealing strip 41 is bonded to the inner wall of the isolation door frame 1, and the EPDM sealing strip 41 is in contact with the corresponding oil-resistant silicone rubber sealing frame 48; the externally threaded adjustment rod 46 passes through the detachable baffle 47 and is connected to the adjustment push piece 44 through the follower block 45, and the externally threaded adjustment rod 46 is threadedly connected to the detachable baffle 47.

[0033] The upper and lower ends of the left side of the front end surface of the automobile door body 2 are respectively connected to the isolation door frame 1 through heavy hinges 21, and a door handle 22 is provided on the right side of the front end surface of the automobile door body 2.

[0034] The support mechanism includes a fixed side plate 38 and a limiting cross bar 39, wherein the upper and lower ends of the follower vertical plate 34 are respectively sleeved in the upper and lower limiting cross bars 39, and the left and right sides of the limiting cross bars 39 are respectively fixed to the front end surface of the automobile door body 2 through the fixed side plates 38.

[0035] It also includes a limit seat 36, wherein the limit seats 36 are fixed at the upper and lower ends of the right side of the front end surface of the automobile door body 2 respectively, one end of the positioning rod 35 is fixed on the follower vertical plate 34, and the other end passes through the corresponding limit seat 36 and is connected to the positioning seat 37.

[0036] The high-strength steel screw rod 32 has a rectangular cavity 322 on the left side thereof, and a rectangular telescopic rod 324 is inserted into the rectangular cavity 322.

[0037] A storage cavity is provided at the front end of the fixing seat 31, in which the high-strength steel screw rod 32 and the follower vertical plate 34 are both fitted. A detachable limit cover is installed on the left side of the front end of the fixing seat 31, and a limit ring 311 is fitted in the detachable limit cover. The left side of the high-strength steel screw rod 32 is sleeved in the limit ring 311.

[0038] An internal thread cavity is formed on the inner wall of the telescopic rod 33 , and a high-strength steel screw rod 32 is threadedly connected in the internal thread cavity.

[0039] A first reinforcing oblique piece is welded between the telescopic rod 33 and the follower vertical plate 34 , and a second reinforcing oblique piece is welded between the positioning rod 35 and the follower vertical plate 34 .

[0040] A set of extrusion sealing mechanisms 4 is provided between the four corners of the automobile door body 2 and the isolation door frame 1 .

[0041] A hexagonal clamp 461 is fixed to the front end of the external thread adjustment rod 46 located outside the detachable blocking piece 47 .

[0042] Example 2

[0043] See also Figure 1-Figure 4 A dust isolation door for an automobile comprises an isolation door frame 1, an automobile door body 2, a latch positioning mechanism 3 and an extrusion sealing mechanism 4, wherein the automobile door body 2 is arranged inside the isolation door frame 1, the latch positioning mechanism 3 is arranged on the front end surface of the automobile door body 2, and the extrusion sealing mechanism 4 is arranged inside the automobile door body 2;

[0044] The latch positioning mechanism 3 includes a fixed seat 31, a high-strength steel screw rod 32, a telescopic rod 33, a follower vertical plate 34, a positioning rod 35, a limiting seat 36, a positioning seat 37, a fixed side plate 38, a limiting cross bar 39 and a limiting ring 311;

[0045] The extrusion sealing mechanism 4 includes an EPDM sealing strip 41 , a sheet-shaped extrusion frame 42 , a small stainless steel compression spring 43 , an adjustment push piece 44 , a follower block 45 , an externally threaded adjustment rod 46 , a detachable baffle 47 and an oil-resistant silicone rubber sealing frame 48 .

[0046] In the latch positioning mechanism 3, a fixed seat 31 is installed on the left side of the front end face of the automobile door body 2, a high-strength steel screw rod 32 is provided on the front side of the fixed seat 31, and a limiting ring 311 is provided on the left side of the annular side face of the high-strength steel screw rod 32, a telescopic rod 33 is inserted on the right side of the fixed seat 31, and a follower vertical plate 34 is welded to the right end face of the telescopic rod 33, and a limiting cross bar 39 is symmetrically inserted on the upper and lower sides of the follower vertical plate 34. The left and right end faces of the limiting cross bar 39 are symmetrically installed with fixed side plates 38, and the upper and lower sides of the right end face of the follower vertical plate 34 are symmetrically connected with a positioning rod 35, a limiting seat 36 is welded on the right side of the front end face of the automobile door body 2, and a positioning seat 37 is welded on the right side of the front end face of the isolation door frame 1.

[0047] The left side of the high-strength steel screw rod 32 is provided with a rectangular cavity 322, and a rectangular telescopic rod 324 is inserted into the rectangular cavity 322. A rotating disk 321 is welded to the left end face of the rectangular telescopic rod 324. A hand-turned positioning screw 323 is engaged with the left side of the high-strength steel screw rod 32. The fixing seat 31 is a detachable structure. A detachable limit cover is installed on the front side of the left end face of the fixing seat 31. A storage cavity is provided on the front side of the fixing seat 31, and the storage cavity matches the telescopic rod 33. The rectangular cavity 322 and the rectangular telescopic rod 324 are convenient for adjusting the left and right positions of the rotating disk 321 so that users with different usage habits can use it. The hand-turned positioning screw 323 is convenient for positioning the rectangular telescopic rod 324, and the rotating disk 321 is convenient for users to adjust the high-strength steel screw rod 3 2 is rotated, and the detachable limit cover is convenient for limiting the limit ring 311 to prevent the limit ring 311 from shaking and slipping during use. The storage cavity facilitates the telescopic rod 33 to perform left and right telescopic movements inside the fixed seat 31. An internal threaded cavity is opened inside the telescopic rod 33, and the internal threaded cavity is engaged with the high-strength steel screw rod 32. A first reinforcing oblique piece is welded on the right side of the annular side of the telescopic rod 33, and two groups of positioning rods 35 of equal specifications are connected. A second reinforcing oblique piece is welded on the left side of the annular side of the two groups of positioning rods 35. The internal threaded cavity enables the telescopic rod 33 to have the ability to telescope left and right. The first reinforcing oblique piece makes the connection between the telescopic rod 33 and the follower vertical plate 34 more stable, and the second reinforcing oblique piece makes the connection between the positioning rod 35 and the follower vertical plate 34 more stable.

[0048] There are two groups of limit cross bars 39 of equal specifications, and four groups of fixed side panels 38 of equal specifications are installed. The fixed side panels 38 are detachable structures, and two groups of limit seats 36 and positioning seats 37 of equal specifications are welded. The two groups of limit cross bars 39 are convenient for limiting and guiding the follower vertical plates 34 to avoid shaking and offsetting of the follower vertical plates 34 during the left and right movement. The four groups of fixed side panels 38 are convenient for supporting and fixing the two groups of limit cross bars 39, the two groups of limit seats 36 are convenient for limiting the two groups of positioning rods 35, and the two groups of positioning seats 37 are convenient for positioning the two groups of positioning rods 35, thereby positioning the automobile door body 2.

[0049] In the extrusion sealing mechanism 4, removable baffles 47 are symmetrically installed on the left and right sides and the upper and lower sides of the front end face of the automobile door body 2, and an externally threaded adjusting rod 46 is set in the middle position inside the removable baffle 47. The rear end of the externally threaded adjusting rod 46 is connected to a follower block 45. Adjustment push pieces 44 are symmetrically embedded on the left and right sides and the upper and lower sides of the interior of the automobile door body 2. A small stainless steel compression spring 43 is clamped on the rear end face of the adjustment push piece 44. A sheet-like extrusion frame 42 is embedded on the rear end face of the small stainless steel compression spring 43. An oil-resistant silicone rubber sealing frame 48 is bonded to the rear end face of the sheet-like extrusion frame 42, and an EPDM sealing strip 41 is bonded to the inner wall of the isolation door frame 1.

[0050] There are four groups of detachable baffles 47 and other specifications installed. An internal threaded through hole is provided in the middle position of the detachable baffle 47, and the internal threaded through hole is engaged with the external threaded adjustment rod 46. There are four groups of external threaded adjustment rods 46 and other specifications. The front end surfaces of the four groups of external threaded adjustment rods 46 are welded with hexagonal clamps 461. The internal threaded through hole enables the external threaded adjustment rod 46 to move back and forth, and the hexagonal clamps 461 are convenient for users to rotate the external threaded adjustment rod 46 with the help of an external wrench. There are four embedded push pieces 44 and other specifications. The front end faces of the four groups of adjusting push pieces 44 are all equipped with anti-slip rings 441, and there are four groups of stainless steel small compression springs 43 and other specifications. There are four groups of follower blocks 45 and other specifications. The front end face of the follower block 45 is connected to the rear end face of the externally threaded adjusting rod 46 by welding. The anti-slip ring 441 prevents the follower block 45 from slipping during use, and the follower block 45 prevents the adjusting push piece 44 from rotating together with the externally threaded adjusting rod 46, and also facilitates the externally threaded adjusting rod 46 to drive the adjusting push piece 44 to move back and forth for adjustment.

[0051] A heavy-duty hinge 21 is provided on the left side of the front end face of the automobile door main body 2, and two groups of heavy-duty hinges 21 of the same specifications are provided. A door handle 22 is welded on the right side of the front end face of the automobile door main body 2. The isolation door frame 1 is installed and fixed at a designated position inside the automobile door. The heavy-duty hinge 21 enables the automobile door main body 2 to have the ability to swing back and forth to open and close, and the door handle 22 makes it convenient for the user to pull the automobile door main body 2 back and forth to open and close.

[0052] The use process of the present invention:

[0053] When the car door body 2 is closed, the user only needs to rotate the high-strength steel screw rod 32 counterclockwise through the rotating disk 321 to make the telescopic rod 33 drive the follower vertical plate 34 to move to the right, and the follower vertical plate 34 will drive the two sets of positioning rods 35 to move to the right together, until the two sets of positioning rods 35 are inserted into the corresponding two sets of positioning seats 37, so as to firmly position the car door body 2 and prevent the car door body 2 from being easily opened by impact force. Similarly, by rotating the high-strength steel screw rod 32 clockwise, the follower vertical plate 34 can drive the two sets of positioning rods 35 to move to the left together, until the two sets of positioning rods 35 are separated from the two sets of positioning seats 37. At this time, the car door body 2 can be opened. During this process, the two sets of limiting cross bars 39 will limit and guide the follower vertical plate 34 to prevent the follower vertical plate 34 from shaking and deviating during the left and right movement, and the two sets of limiting seats 36 will limit the two sets of positioning rods 35 to prevent the positioning rods 35 from deviating during the left and right movement.

[0054] During the closing process of the automobile door body 2, the EPDM sealing strip 41 makes the sealing between the rear end face of the automobile door body 2 and the isolation door frame 1 better. After the EPDM sealing strip 41 has been used for a period of time, it will be slightly deformed. At this time, the user only needs to use an external wrench to rotate the hexagonal clamp 461 clockwise at equal intervals, so that the four groups of external threaded adjustment rods 46 can drive the four groups of adjustment push pieces 44 to move equidistantly toward the rear end, thereby applying an extrusion force to the four groups of stainless steel small compression springs 43. At this time, the extrusion force of the stainless steel small compression springs 43 will be enhanced, so that the sheet extrusion frame 42 can apply an extrusion force toward the rear end to the oil-resistant silicone rubber sealing frame 48, which not only makes the fit between the oil-resistant silicone rubber sealing frame 48 and the EPDM sealing strip 41 better, but also causes the EPDM sealing strip 41 to produce slight deformation and expansion, thereby increasing the sealing timeliness of the EPDM sealing strip 41.

[0055] During later use, the four sets of detachable baffles 47 are removed respectively, and then the four sets of external threaded adjustment rods 46 and adjustment push pieces 44 can be removed respectively, and then the stainless steel small compression spring 43, the sheet extrusion frame 42 and the oil-resistant silicone rubber sealing frame 48 can be disassembled, maintained or replaced in turn.

[0056] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention. These simple variations all fall within the scope of protection of the present invention.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0058] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A dust isolation door for automobile, characterized in that: The invention comprises an isolation door frame (1), an automobile door body (2), a latch positioning mechanism (3) and an extrusion sealing mechanism (4), wherein the automobile door body (2) is arranged inside the isolation door frame (1), the latch positioning mechanism (3) is arranged on the front end surface of the automobile door body (2), and a plurality of extrusion sealing mechanisms (4) are arranged between the automobile door body (2) and the isolation door frame (1); The latch positioning mechanism (3) comprises a fixed seat (31), a high-strength steel screw rod (32), a telescopic rod (33), a follower vertical plate (34), a positioning plug rod (35), a positioning seat (37), a supporting mechanism, a rotating disk (321), and a rectangular telescopic rod (324); wherein the fixed seat (31) is fixed to the left side of the front end face of the automobile door body (2); a high-strength steel screw rod (32) is provided on the left side inside the fixed seat (31); the left side of the high-strength steel screw rod (32) is fitted in the fixed seat (31) through a limiting ring (311); the left end of the rectangular telescopic rod (324) is fixed with a rotating disk (321); the right side is inserted into the high-strength steel screw rod (32) and the left end is fixed with a rotating disk (321). The high-strength steel screw rod (32) is fastened in the high-strength steel screw rod (32) by a hand-turned positioning screw (323), a telescopic rod (33) is inserted into the right side of the fixed seat (31), and the high-strength steel screw rod (32) is threadedly connected in the telescopic rod (33), and a follower vertical plate (34) is fixed on the right side of the telescopic rod (33), the upper and lower ends of the follower vertical plate (34) are respectively sleeved in the support mechanism on the front end surface of the automobile door body (2), and the upper and lower ends of the right side of the follower vertical plate (34) are respectively provided with positioning rods (35), and the positioning rods (35) are matched and connected in the positioning seat (37) fixed on the right side of the front end of the isolation door frame (1); The extrusion sealing mechanism (4) comprises an EPDM sealing strip (41), a sheet-shaped extrusion frame (42), a small stainless steel compression spring (43), an adjustment push piece (44), a follower block (45), an external thread adjustment rod (46), a detachable baffle (47) and an oil-resistant silicone rubber sealing frame (48); wherein a cavity is provided in the automobile door body (2), a detachable baffle (47) is provided on the front end surface of the automobile door body (2) at the end of the cavity, an adjustment push piece (44) and a sheet-shaped extrusion frame (42) are embedded in the cavity of the automobile door body (2) at the rear end of the detachable baffle (47), and the adjustment push piece (44) and the sheet-shaped extrusion frame (42) are embedded in the cavity of the automobile door body (2), and the adjustment push piece (44) and the sheet-shaped extrusion frame (42) are embedded in the cavity of the automobile door body (2) at the rear end of the detachable baffle (47). A small stainless steel compression spring (43) is provided between the push piece (44) and the sheet-like extrusion frame (42), and an oil-resistant silicone rubber sealing frame (48) is bonded to the rear end surface of the sheet-like extrusion frame (42). An EPDM sealing strip (41) is bonded to the inner wall of the isolation door frame (1), and the EPDM sealing strip (41) is in contact with the corresponding oil-resistant silicone rubber sealing frame (48); the externally threaded adjustment rod (46) passes through the detachable baffle (47) and is connected to the adjustment push piece (44) through the follower block (45), and the externally threaded adjustment rod (46) and the detachable baffle (47) are threadedly connected; The support mechanism includes a fixed side plate (38) and a limiting cross bar (39), wherein the upper and lower ends of the follower vertical plate (34) are respectively sleeved in the upper and lower limiting cross bars (39), and the left and right sides of the limiting cross bar (39) are respectively fixed to the front end surface of the automobile door body (2) through the fixed side plate (38); The front end of the fixed seat (31) is provided with a receiving cavity, the high-strength steel screw rod (32) and the follower vertical plate (34) are both fitted in the receiving cavity, and a detachable limit cover is installed on the left side of the front end of the fixed seat (31), the limit ring (311) is fitted in the detachable limit cover, and the left side of the high-strength steel screw rod (32) is sleeved in the limit ring (311); An internal thread cavity is formed on the inner wall of the telescopic rod (33), and a high-strength steel screw rod (32) is threadedly connected to the internal thread cavity.

2. The dust isolation door for automobile according to claim 1, characterized in that: The left side of the front end face of the automobile door body (2) is connected to the isolation door frame (1) via a heavy hinge (21), and a door handle (22) is provided on the right side of the front end face of the automobile door body (2).

3. The dust isolation door for automobile according to claim 1, characterized in that: It also includes a limit seat (36), wherein the limit seats (36) are fixed to the upper and lower ends of the right side of the front end surface of the automobile door body (2), and one end of the positioning rod (35) is fixed to the follower vertical plate (34), and the other end passes through the corresponding limit seat (36) and is connected to the positioning seat (37).

4. The dust isolation door for automobile according to claim 1, characterized in that: A rectangular cavity (322) is provided on the left side of the interior of the high-strength steel screw rod (32), and a rectangular telescopic rod (324) is inserted into the rectangular cavity (322).

5. The dust isolation door for automobile according to claim 1, characterized in that: A first reinforcing oblique piece is welded between the telescopic rod (33) and the follower vertical plate (34), and a second reinforcing oblique piece is welded between the positioning insertion rod (35) and the follower vertical plate (34).

6. The dust isolation door for automobile according to claim 1, characterized in that: A set of extrusion sealing mechanisms (4) are provided between the four corners of the automobile door body (2) and the isolation door frame (1).

7. The dust isolation door for automobile according to claim 1, characterized in that: A hexagonal clamp (461) is fixed to the front end portion of the externally threaded adjustment rod (46) located outside the detachable baffle (47).

Images