Back door sealing structure and vehicle

Abstract

The utility model provides a back door sealing structure and a vehicle, and belongs to the technical field of vehicle sealing structures, the back door sealing structure comprises a lower back door and an upper back door arranged above the lower back door, and the upper back door and the lower back door are both movably connected to a vehicle body. The sealing structure further comprises a first sealing strip and a second sealing strip which are arranged on the top of the lower back door, the first sealing strip and the second sealing strip are arranged in the circumferential direction of the lower back door, the first sealing strip is arranged on the outer side of the second sealing strip, and when the upper back door and the lower back door are both in a closed state, the second sealing strip is arranged on the outer side of the second sealing strip. The first sealing strip and the second sealing strip are used for sealing a gap between the upper back door and the lower back door. The utility model provides a back door sealing structure and a vehicle and aims to solve the problems that in the prior art, a sealing strip is arranged on an upper back door to achieve sealing of the upper back door and a lower back door, the sealing strip is prone to displacement, and the sealing effect is affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle sealing structures, and more specifically, relates to a rear door sealing structure and a vehicle. Background Technique

[0002] Vehicles are important means of transportation for getting around, carrying people, and transporting goods. With the continuous development of social economy, people's living standards are also constantly improving. Vehicles are becoming more and more common in people's lives and work. It can save time for travel, improve work efficiency, and bring great convenience to people's lives and work. A trunk is usually provided at the rear of the vehicle, and the trunk is used to place the user's luggage and items to improve the storage function of the vehicle. Usually, an opening is provided on the trunk, and a rear door is provided at the opening. The rear door can open and close the trunk opening to facilitate the user to place luggage and items through the opening.

[0003] Currently, the traditional rear door opening methods mainly include: hatchback type, up-and-down opening type, side opening type, left-and-right opening type. The main function of the rear door is to achieve the storage and covering function of the trunk items. In order to ensure the sealing performance between the rear door and the trunk when the rear door is in the closed state, a rear door sealing strip is installed on the sheet metal edge of the trunk to achieve the seal between the rear door and the trunk.

[0004] For the up-and-down opening type rear door, a sealing strip is usually provided on the upper rear door and fixedly connected to the upper rear door through a buckle or adhesive. However, since both the upper rear door and the lower rear door can be opened, the requirement for sealing performance is higher. Merely relying on the sealing strip provided on the upper rear door is difficult to meet the sealing requirements. In addition, the opening frequency of the upper rear door is much higher than that of the lower rear door. When the upper rear door is opened, the top of the sealing strip is connected to the upper rear door, and there is no support component at the bottom to provide support force for it. Therefore, a reverse acting force is formed between the gravity of the sealing strip and the pulling force of the upper rear door on it, resulting in an extremely unstable connection between the sealing strip and the upper rear door. Moreover, when the upper rear door is closed, a vibration force is generated between the upper rear door and the lower rear door, causing the sealing strip provided on the upper rear door to be squeezed and deformed. Over time, it is easy to cause the position of the sealing strip to change, thereby affecting the sealing effect. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a rear door sealing structure and a vehicle, aiming to solve the problem that in the prior art, a sealing strip is provided on the upper rear door to achieve the seal between the upper rear door and the lower rear door, and it is easy to cause the displacement of the sealing strip and affect the sealing effect.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is:

[0007] In a first aspect, a rear door sealing structure is provided, which includes a lower rear door and an upper rear door disposed above the lower rear door. Both the upper rear door and the lower rear door are movably connected to the vehicle body. The structure further includes a first sealing strip and a second sealing strip disposed at the top of the lower rear door. Both the first sealing strip and the second sealing strip are arranged along the circumference of the lower rear door, and the first sealing strip is disposed outside the second sealing strip. When both the upper rear door and the lower rear door are in a closed state, the first sealing strip and the second sealing strip are used to seal the gap between the upper rear door and the lower rear door.

[0008] In combination with the first aspect, in a possible implementation, the first sealing strip includes a fixing piece and a sealing piece disposed at the top of the fixing piece. The axis of the sealing piece forms an angle with the axis of the fixing piece, and the fixing piece is connected to the lower rear door. The sealing piece is used to abut against the upper rear door for sealing.

[0009] In combination with the first aspect, in a possible implementation, the sealing piece is bent outwardly towards the outside of the vehicle body to form an arc-shaped sheet member.

[0010] In combination with the first aspect, in a possible implementation, the sealing piece is provided with reinforcing ribs along its extending path.

[0011] In combination with the first aspect, in a possible implementation, the second sealing strip is provided with a through deformation channel along its extending path, and the cross-section of the second sealing strip is triangular. The base of the triangle is connected to the lower rear door.

[0012] In combination with the first aspect, in a possible implementation, the lower rear door is provided with a mounting groove, and the bottom of the second sealing strip is provided with a mounting rib adapted to the mounting groove. The mounting rib is inserted into the mounting groove.

[0013] In combination with the first aspect, in a possible implementation, the rear door sealing structure further includes a third sealing strip disposed between the lower rear door and the vehicle body floor. The third sealing strip is used to seal the gap between the lower rear door and the vehicle body floor.

[0014] In combination with the first aspect, in a possible implementation, the third sealing strip includes a fixing portion and a sealing portion connected to the rear side of the fixing portion. The fixing portion is provided with a fixing groove, and the fixing groove is in plug-in fit with the vehicle body floor. The sealing portion abuts against the lower rear door.

[0015] In combination with the first aspect, in a possible implementation, the sealing portion is provided with an extrusion channel along its extending path.

[0016] The beneficial effects of the rear door sealing structure provided by the present utility model are as follows: Compared with the prior art, in the rear door sealing structure of the present utility model, a first sealing strip and a second sealing strip are respectively arranged from outside to inside at the top of the lower rear door. When both the upper rear door and the lower rear door are closed, the first sealing strip and the second sealing strip respectively abut against the upper rear door. The present utility model adopts a double-layer sealing structure to seal the upper rear door and the lower rear door, which can not only improve the sealing effect and prevent external water flow from entering the trunk, but also still seal the gap between the upper rear door and the lower rear door after the sealing of the first sealing strip or the second sealing strip fails. In addition, both the first sealing strip and the second sealing strip in the present utility model are arranged at the top of the lower rear door. Since the opening frequency of the lower rear door is lower than that of the upper rear door, the lower rear door can provide effective supporting force for the first sealing strip and the second sealing strip, improve the firmness of the connection between the first sealing strip and the second sealing strip and the lower rear door, and reduce the probability of their displacement.

[0017] In a second aspect, an embodiment of the present utility model further provides a vehicle, including the above-mentioned rear door sealing structure.

[0018] The beneficial effects of the vehicle provided by the present utility model are as follows: Compared with the prior art, the above-mentioned rear door sealing structure is adopted, and a first sealing strip and a second sealing strip are respectively arranged from outside to inside at the top of the lower rear door. When both the upper rear door and the lower rear door are closed, the first sealing strip and the second sealing strip respectively abut against the upper rear door. The present utility model adopts a double-layer sealing structure to seal the upper rear door and the lower rear door, which can not only improve the sealing effect and prevent external water flow from entering the trunk, but also still seal the gap between the upper rear door and the lower rear door after the sealing of the first sealing strip or the second sealing strip fails. In addition, both the first sealing strip and the second sealing strip in the present utility model are arranged at the top of the lower rear door. Since the opening frequency of the lower rear door is lower than that of the upper rear door, the lower rear door can provide effective supporting force for the first sealing strip and the second sealing strip, improve the firmness of the connection between the first sealing strip and the second sealing strip and the lower rear door, and reduce the probability of their displacement. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the rear door sealing structure provided by the embodiment of the present utility model;

[0021] Figure 2 It is Figure 1 A partial enlarged view of part A in

[0022] Figure 3 is Figure 1 A partial enlarged view of part B in it;

[0023] Figure 4 It is a schematic structural diagram of a vehicle provided by an embodiment of the present invention.

[0024] In the figure: 1, upper back door; 101, outer panel; 102, support frame; 103, interior panel; 104, tail wing; 2, lower back door; 3, vehicle body floor; 4, first sealing strip; 401, fixing piece; 402, sealing piece; 403, reinforcing rib; 5, second sealing strip; 501, deformation channel; 502, installation rib; 6, third sealing strip; 601, fixing part; 602, sealing part; 6021, extrusion channel. Specific embodiments

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] In the claims, the description and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., are all used to distinguish different objects and are not used to describe a specific order. The orientation terms "upper" and "lower" in the claims, the description and the accompanying drawings of the present invention are the same as the up and down directions of the vehicle body, the terms "left" and "right" are the same as the left and right directions of the vehicle body, the terms "front" and "rear" are the same as the front and rear directions of the vehicle body, and the term "inner side" is the side close to the passenger compartment in the left and right directions and the front and rear directions of the vehicle body, and vice versa is the "outer side". Unless otherwise specified, the remaining orientation terms, such as "vertical", "clockwise", "counterclockwise", etc., indicate the orientation and position relationship based on the orientation and position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present invention. In the claims, the description and the above-mentioned accompanying drawings of the present invention, unless otherwise clearly defined, when using terms such as "fixed connection" or "fixedly connected", should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrally connected and being fixed by other devices or elements. In the claims, the description and the above-mentioned accompanying drawings of the present invention, when using terms such as "comprising", "having" and their variants, are intended to mean "including but not limited to".

[0027] It should be noted that when the sealing strip is arranged on the upper back door, since the opening frequency of the upper back door is greater than that of the lower back door, when the upper back door is closed, the sealing strip contacts the lower back door. At this time, the sealing strip is the active force-applying party and the lower back door is the force-receiving party. Therefore, the sealing strip and the upper back door are more likely to displace as moving bodies.

[0028] Please refer to Figures 1 to 3 as well. Now, the back door sealing structure and the vehicle provided by the present utility model will be described. The back door sealing structure includes a lower back door 2 and an upper back door 1 disposed above the lower back door 2. Both the upper back door 1 and the lower back door 2 are movably connected to the vehicle body. It further includes a first sealing strip 4 and a second sealing strip 5 disposed at the top of the lower back door 2. Both the first sealing strip 4 and the second sealing strip 5 are arranged along the circumferential direction of the lower back door 2, and the first sealing strip 4 is disposed outside the second sealing strip 5. When both the upper back door 1 and the lower back door 2 are in the closed state, the first sealing strip 4 and the second sealing strip 5 are used to seal the gap between the upper back door 1 and the lower back door 2.

[0029] Compared with the prior art, for the back door sealing structure provided by the present utility model, the first sealing strip 4 and the second sealing strip 5 are respectively arranged from outside to inside at the top of the lower back door 2. When both the upper back door 1 and the lower back door 2 are closed, the first sealing strip 4 and the second sealing strip 5 respectively abut against the upper back door 1. The present utility model adopts a double-layer sealing structure to seal the upper back door 1 and the lower back door 2, which can not only improve the sealing effect and prevent external water flow from entering the trunk, but also still seal the gap between the upper back door 1 and the lower back door 2 after the sealing failure of the first sealing strip 4 or the second sealing strip 5. In addition, both the first sealing strip 4 and the second sealing strip 5 in the present utility model are arranged at the top of the lower back door 2. Since the opening frequency of the lower back door 2 is lower than that of the upper back door 1, the lower back door 2 can provide an effective supporting force for the first sealing strip 4 and the second sealing strip 5, improve the firmness of the connection between the first sealing strip 4 and the second sealing strip 5 and the lower back door 2, and reduce the probability of their displacement.

[0030] Optionally, both the first sealing strip 4 and the second sealing strip 5 are flexible members, such as rubber members or EVA members

[0031] Optionally, the first sealing strip 4 and the second sealing strip 5 are respectively bonded to the lower back door 2.

[0032] Optionally, the upper back door 1 and the lower back door 2 can be rotatably or slidably connected to the vehicle body. For example, the upper back door 1 is slidably connected to the vehicle body and the lower back door 2 is rotatably connected to the vehicle body.

[0033] Optionally, the upper back door 1 includes a support frame 102 and an outer panel 101 disposed above the support frame 102, and further includes an interior panel 103 disposed at the lower part of the support frame 102, and a spoiler 104 disposed at the rear side of the outer panel 101. The first sealing strip 4 abuts against the spoiler 104, and the second sealing strip 5 abuts against the support frame 102.

[0034] Optionally, the support frame 102 has a reinforcing portion bent downward.

[0035] In some embodiments, refer to Figures 1 to 2 , the first sealing strip 4 includes a fixing piece 401 and a sealing piece 402 disposed on the top of the fixing piece 401. The axis of the sealing piece 402 forms an angle with the axis of the fixing piece 401, and the fixing piece 401 is connected to the lower back door 2. The sealing piece 402 is used to abut against the upper back door 1 for sealing.

[0036] The sealing piece 402 extends upward from the fixing piece 401 and forms an angle with the fixing piece 401. The fixing piece 401 can increase the contact area with the lower back door 2 and improve the firmness of the connection. The sealing piece 402 abuts against the upper back door 1 to block external water flow, air flow, etc. outside the trunk.

[0037] Specifically, the plate surface of the fixing piece 401 forms an angle with the plate surface of the sealing piece 402, and the plate surface of the fixing piece 401 is attached to the lower back door 2.

[0038] In some embodiments, refer to Figure 2 , the sealing piece 402 is bent outward to the vehicle body to form an arc-shaped sheet member.

[0039] Since the sealing piece 402 needs to abut against the upper back door 1 and there will be a vibration force with the lower back door 2 when the upper back door 1 is closed, the sealing piece 402 is an arc-shaped sheet member and is in extrusion contact with the inner surface of the sealing piece 402 when the upper back door 1 is closed, reducing the pressure and avoiding the fracture of the sealing piece 402 under the action of the extrusion force. In addition, the sealing piece 402 is arranged to be bent outward to the vehicle body. Compared with the scheme of bending inward to the vehicle body, the impact direction of the water flow is opposite to the bending direction of the sealing piece 402, avoiding the situation that the sealing piece 402 is further bent by the impact force of the water flow resulting in sealing failure.

[0040] In some embodiments, refer to Figure 2 , the sealing piece 402 is provided with a reinforcing rib 403 along its extending path.

[0041] The reinforcing rib 403 can improve the strength and anti-deformation ability of the sealing piece 402, avoid the fracture and damage of the sealing piece 402 caused by the vibration force generated when the upper back door 1 is closed and the impact force of the water flow, and improve the service life of the sealing piece 402.

[0042] In some embodiments, refer toFigure 1 The second sealing strip 5 is provided with a through deformation channel 501 along its extending path, and the cross-section of the second sealing strip 5 is triangular, with the base of the triangle connected to the lower back door 2.

[0043] Since the second sealing strip 5 is located inside the first sealing strip 4 and belongs to secondary sealing, the impact of water flow received will be reduced, so there is no need to be set as a sheet-like member. In this embodiment, the second sealing strip 5 is set as a member with a triangular cross-section. On the one hand, because a triangle has stability and is not easy to deform,

[0044] In some embodiments, please refer to Figure 2 The lower back door 2 is provided with a mounting groove, and the bottom of the second sealing strip 5 is provided with a mounting rib 502 adapted to the mounting groove, and the mounting rib 502 is inserted into the mounting groove.

[0045] The mounting boss is inserted into the mounting groove, increasing the contact area with the lower back door 2 and improving the firmness of the connection. Both the mounting groove and the lower back door 2 are coated with adhesive, and the second sealing strip 5 is fixed by an adhesive bonding method. The mounting groove can also limit the mounting rib 502 to prevent the second sealing strip 5 from shifting.

[0046] Specifically, the mounting groove is provided along the circumferential direction of the lower back door 2.

[0047] In some embodiments, please refer to Figure 1 and Figure 3 The back door sealing structure further includes a third sealing strip 6 provided between the lower back door 2 and the vehicle body floor 3, and the third sealing strip 6 is used to seal the gap between the lower back door 2 and the vehicle body floor 3.

[0048] The third sealing strip 6 is used to seal the gap between the lower back door 2 and the vehicle body floor 3. Since the lower back door 2 is movably connected to the vehicle body, there is a gap between the lower back door 2 and the vehicle body floor 3 when the lower back door 2 is closed, avoiding rigid contact between the lower back door 2 and the vehicle body floor 3 and causing damage. The third sealing strip 6 can not only seal the gap between the lower back door 2 and the vehicle body floor 3, but also play a buffering role when the lower back door 2 is closed, avoiding rigid contact between the lower back door 2 and the vehicle body floor 3.

[0049] In some embodiments, please refer to Figure 3 The third sealing strip 6 includes a fixing part 601 and a sealing part 602 connected to the rear side of the fixing part 601. The fixing part 601 is provided with a fixing groove, and the fixing groove is in plug-in fit with the vehicle body floor 3, and the sealing part 602 abuts against the lower back door 2.

[0050] The vehicle body floor 3 is inserted into the fixing groove, which increases the contact area between the fixing part 601 and the vehicle body floor 3, and improves the connection stability and firmness. The sealing part 602 abuts against the lower back door 2, and seals the gap between the lower back door 2 and the vehicle body floor 3 through the extrusion deformation of the sealing part 602.

[0051] In some embodiments, please refer to Figure 3 , an extrusion channel 6021 is formed in the sealing part 602 along its extending path.

[0052] Since the extrusion channel 6021 is formed in the sealing part 602, the deformation amount of the sealing part 602 is increased, the vibration force generated when the lower back door 2 is closed is alleviated, and the larger deformation amount can effectively ensure the sealing effect.

[0053] Optionally, the third sealing strip 6 is a flexible member, such as a rubber member or an EVA member.

[0054] Based on the same inventive concept, the present utility model also provides a vehicle. Please refer to Figure 4 , the vehicle includes the above-mentioned back door sealing structure.

[0055] For the vehicle provided by the present utility model, the above-mentioned back door sealing structure is adopted. The first sealing strip 4 and the second sealing strip 5 are respectively arranged from outside to inside at the top of the lower back door 2. When both the upper back door 1 and the lower back door 2 are closed, the first sealing strip 4 and the second sealing strip 5 respectively abut against the upper back door 1. The present utility model adopts a double-layer sealing structure to seal the upper back door 1 and the lower back door 2, which can not only improve the sealing effect and prevent external water flow from entering the trunk, but also still seal the gap between the upper back door 1 and the lower back door 2 after the sealing of the first sealing strip 4 or the second sealing strip 5 fails. In addition, the first sealing strip 4 and the second sealing strip 5 in the present utility model are both arranged at the top of the lower back door 2. Since the opening frequency of the lower back door 2 is lower than that of the upper back door 1, the lower back door 2 can provide an effective supporting force for the first sealing strip 4 and the second sealing strip 5, improve the connection firmness between the first sealing strip 4 and the second sealing strip 5 and the lower back door 2, and reduce the probability of their displacement.

[0056] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The back door sealing structure is characterized by: The invention comprises a lower back door (2) and an upper back door (1) arranged above the lower back door (2), wherein the upper back door (1) and the lower back door (2) are both movably connected to the vehicle body, and further comprises a first sealing strip (4) and a second sealing strip (5) arranged at the top of the lower back door (2), wherein the first sealing strip (4) and the second sealing strip (5) are both arranged along the circumference of the lower back door (2), and the first sealing strip (4) is arranged on the outside of the second sealing strip (5), and when the upper back door (1) and the lower back door (2) are both in a closed state, the first sealing strip (4) and the second sealing strip (5) are used to seal the gap between the upper back door (1) and the lower back door (2).

2. The tailgate sealing structure according to claim 1, characterized in that: The first sealing strip (4) comprises a fixing plate (401) and a sealing plate (402) arranged on the top of the fixing plate (401), the axis of the sealing plate (402) forms an angle with the axis of the fixing plate (401), and the fixing plate (401) is connected to the lower back door (2), and the sealing plate (402) is used to abut and seal with the upper back door (1).

3. The tailgate sealing structure according to claim 2, characterized in that: The sealing sheet (402) is bent toward the outside of the vehicle body to form an arc-shaped sheet member.

4. The tailgate sealing structure according to claim 2, characterized in that: The sealing sheet (402) is provided with reinforcing ribs (403) along its extension path.

5. The tailgate sealing structure according to claim 1, characterized in that: The second sealing strip (5) is provided with a continuous deformation channel (501) along its extension path, and the cross section of the second sealing strip (5) is a triangle, the base of the triangle being connected to the lower back door (2).

6. The tailgate sealing structure according to claim 1, characterized in that: The lower back door (2) is provided with a mounting groove, and the bottom of the second sealing strip (5) is provided with a mounting convex strip (502) adapted to the mounting groove, and the mounting convex strip (502) is inserted into the mounting groove.

7. The tailgate sealing structure according to claim 1, characterized in that: The rear door sealing structure further comprises a third sealing strip (6) arranged between the lower rear door (2) and the vehicle body floor (3), wherein the third sealing strip (6) is used to seal the gap between the lower rear door (2) and the vehicle body floor (3).

8. The tailgate sealing structure according to claim 7, characterized in that: The third sealing strip (6) comprises a fixing portion (601) and a sealing portion (602) connected to the rear side of the fixing portion (601); the fixing portion (601) is provided with a fixing groove, the fixing groove is plugged into the vehicle body floor (3), and the sealing portion (602) abuts against the lower tailgate (2).

9. The tailgate sealing structure according to claim 8, characterized in that: The sealing portion (602) is provided with an extrusion channel (6021) along its extension path.

10. A vehicle, characterized in that A tailgate sealing structure according to any one of claims 1 to 9.

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