Leveling device for an aluminum door

Abstract

The application provides a leveling device for an aluminum door, comprising a fixed body, a supporting unit, a locking unit and an adjustable magnet pin. The supporting unit is installed at a first end of the fixed body, the locking unit is installed on the fixed body, and the adjustable magnet pin is installed at a second end of the fixed body. The fixed body is fixed on a door lock hole through the supporting unit and the locking unit, and after the door is closed, the adjustable magnet pin is adsorbed on a door frame sheet metal to fix the door, and the adjustable magnet pin is rotated to adjust the door to be leveled. The application reduces the cost, the size and the weight, and has high applicability.

Description

Technical Field

[0001] This invention relates to the field of vehicle door inspection, and more specifically to a leveling device for an aluminum vehicle door. Background Technology

[0002] With the development of lightweight vehicles, more and more vehicle projects, especially new energy vehicles, are using aluminum materials, such as all-aluminum four-door models. However, the external matching and leveling of aluminum four-doors cannot be achieved using simple and common magnetic blocks like steel doors, which presents many inconveniences in actual operation. Currently, there is no sufficiently simple and easy-to-use solution.

[0003] Chinese patent CN217805032U discloses a door leveling device, including two suction cups, a connecting strip, a support plate, and a support rod. The connecting strip connects the two suction cups, and the support plate is positioned between the two suction cups, with the bottom surface of the support plate and the bottom surfaces of the two suction cups on the same side of the connecting strip. The support rod is perpendicular to the support plate. The first end of the support rod is connected to the connecting strip, and the second end is fixedly connected to the support plate. This technical solution allows one suction cup to be attached near the flatness control reference point of the front door, and the other suction cup to be attached near the flatness control reference point of the rear door, or one suction cup to be attached near the flatness control reference point of the rear door, and the other suction cup to be attached near the flatness control reference point of the vehicle body, thus achieving a connection and fixation between the front and rear doors, or between the rear door and the vehicle body. A support plate is set between the two suction cups. The support plate abuts against the connection between the front door and the rear door, or the connection between the rear door and the vehicle body, to achieve the leveling of the flatness control reference point of the front door and the rear door, or the leveling of the flatness control reference point of the rear door and the vehicle body.

[0004] However, this solution has the following drawbacks: 1. The suction cup's precision is not high, and it is affected by the surface condition of the car door sheet metal. For example, the presence of oil or dust particles on the surface will affect the suction effect. 2. The operation process is inconvenient. The device is relatively bulky. After installation and leveling the flatness control reference point, if further adjustments are needed, especially for the rear door, both sets of devices for the front and rear doors must be removed. After the door adjustment is completed, both sets of devices must be reinstalled for leveling, resulting in low efficiency and failing to meet the demands of high-speed production. 3. The processing cost is high, making it unsuitable for mass production scenarios.

[0005] The current improved solution involves designing a leveling device on the door frame. This device is secured to the door frame stop with bolts, and a spiral pin pushes the door out from the inside, achieving the leveling adjustment required for the aluminum four-door frame. The leveling device includes a fixed main body, a locking unit, an adjustable screw pin, and an auxiliary spring fixing unit. The fixed main body is secured to the sheet metal stop, and the locking unit firmly locks the main body to the door frame through tightening. The adjustable screw pin has an adjustable screw, allowing for door leveling adjustment and ensuring door stability. The auxiliary spring fixing unit locks and fixes the adjustable screw pin, ensuring the adjusted position is securely fixed. This leveling device design allows users to easily level the aluminum four-door frame, ensuring the door closes smoothly and aligned.

[0006] However, this improved solution still has the following drawbacks: First, the operation is cumbersome and time-consuming, requiring multiple adjustments to the tension spring, resulting in wasted effort. Second, the spring tension is not ideal, causing the door to wobble during adjustment and affecting judgment accuracy. Finally, it's easy to forget to loosen the spring before opening the door, leading to spring over-elasticity failure and high maintenance costs. Summary of the Invention

[0007] The purpose of this invention is to design a novel leveling device based on the structural characteristics of aluminum doors. This leveling device is fixed to the door lock hole, and taking advantage of the steel nature of the car body, a magnetic adjustable pin is incorporated to meet the needs of adjusting, leveling, and securing the aluminum door.

[0008] The present invention proposes a leveling device for an aluminum car door, comprising: a fixed body, a support unit, a locking unit, and an adjustable magnetic pin. The support unit is installed at the first end of the fixed body, the locking unit is installed on the fixed body, and the adjustable magnetic pin is installed at the second end of the fixed body.

[0009] The fixed body is fixed to the door lock hole by the support unit and the locking unit. After the door is closed, the adjustable magnetic pin is attracted to the door frame sheet metal to fix the door. The adjustable magnetic pin can be rotated to adjust the door level.

[0010] In one embodiment, the fixing body is a bent plate, which includes a first main board, a second main board, a third main board, and a fourth main board. The first end of the first main board is the first end of the fixing body, the second end of the first main board is connected to the first end of the second main board, the second end of the second main board is connected to the first end of the third main board, the second end of the third main board is connected to the first end of the fourth main board, and the second end of the fourth main board is the second end of the fixing body.

[0011] Among them, the first motherboard and the second motherboard form a first angle, the second motherboard and the third motherboard bracket form a second angle, and the third motherboard and the fourth motherboard form a third angle.

[0012] In one embodiment, the support unit includes a sleeve and a first fastener. The sleeve has a through hole with an internal thread. The first fastener includes a first connector and a first stop. The outer wall of the first connector has an external thread. The first stop is located at the first end of the first connector. The diameter of the first stop is larger than the diameter of the first connector. The external thread on the outer wall of the first connector matches the internal thread on the through hole of the sleeve. The second end of the first connector is inserted into the first main board from one side. The first connector is threadedly connected to the sleeve that is attached to the other side of the first main board.

[0013] In one embodiment, the first main board has a first hole, the diameter of which matches the diameter of the through hole in the sleeve and the diameter of the first connector. The diameter of the first hole is smaller than the diameter of the first stop. The second end of the first connector is inserted into the first hole from one side of the first main board, and the first connector is threadedly connected to the sleeve that fits on the other side of the first hole.

[0014] In one embodiment, the locking unit includes a second fastener and a first locking member. The first locking member has a through hole with an internal thread. The second fastener includes a second connector and a second stop. The outer wall of the second connector has an external thread. The second stop is located at the first end of the second connector, and the diameter of the second stop is larger than the diameter of the second connector. The external thread on the outer wall of the second connector matches the internal thread on the through hole of the first locking member. The second end of the second connector is inserted into the third main board from one side, and the second connector is threadedly connected to the first locking member, which is attached to the other side of the third main board.

[0015] In one embodiment, the third main board has a second hole, the diameter of which matches the diameter of the through hole in the first locking member and the diameter of the second connector. The diameter of the second hole is smaller than the diameter of the second stop. The second end of the second connector is inserted into the second hole from one side of the third main board, and the second connector is threadedly connected to the first locking member that is attached to the other side of the second hole.

[0016] In one embodiment, the second fastener is a screw and the first locking element is a nut.

[0017] In one embodiment, the adjustable magnetic pin includes a second locking member and a third fastener. The second locking member has a through hole inside and an internal thread on the through hole. The second locking member is fixed to one side of the fourth main board. The third fastener includes a third connector and a third stop. The third stop is magnetic. The outer wall of the third connector has an external thread. The third stop is located at the first end of the third connector. The diameter of the third stop is larger than the diameter of the third connector. The external thread on the outer wall of the third connector matches the internal thread on the through hole of the first locking member. The second end of the third connector is inserted into the fourth main board from the other side. The third connector is threadedly connected to the second locking member fixed to one side of the fourth main board.

[0018] The door is leveled by rotating and adjusting the third fastener.

[0019] In one embodiment, the fourth main board has a third hole, the diameter of which matches the diameter of the through hole in the second locking member and the diameter of the third connector. The diameter of the third hole is smaller than the diameter of the third stop. The second end of the third connector is inserted into the third hole from the other side of the fourth main board, and the third connector is threadedly connected to the second locking member fixed to one side of the third hole.

[0020] In one embodiment, the second locking element is a threaded washer, and the third fastener is a magnetic screw.

[0021] The leveling device for aluminum car doors of the present invention has the following beneficial effects:

[0022] 1. This invention can save installation and disassembly time, meeting the needs of high-speed production.

[0023] 2. The leveling device of the present invention has obvious cost advantages and can meet the needs of large-scale application scenarios.

[0024] 3. The leveling device proposed in this invention has a volume much smaller than that of existing leveling devices, and its weight is also much lower. The leveling device of this invention offers excellent stability on the production line as it moves with the vehicle, has no adverse effects when doors are opened, and provides significant advantages in terms of convenience during cyclic transfers.

[0025] 4. This invention can well support and complement the application of new technologies in automatic gap and surface difference detection systems. Before detection, this device can be used to maintain the stability of the four-door matching state.

[0026] 5. The leveling device of the present invention can be used for all four doors without distinguishing between left and right doors. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an aluminum car door leveling device according to an embodiment of the present invention.

[0028] Figure 2a , Figure 2b , Figure 2c , Figure 2d This is a general schematic diagram of the various angles of an aluminum car door leveling device according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram illustrating the application of an aluminum car door leveling device according to an embodiment of the present invention.

[0030] The components are: 1. Fixed body; 2. Support unit; 21. Sleeve; 22. First fastener; 3. Locking unit; 31. Second fastener; 32. First locking element; 4. Adjustable magnetic pin; 41. Second locking element; 42. Third fastener. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 for illustrative purposes only and are not intended to limit the invention.

[0032] like Figure 1 As shown, this invention proposes a leveling device for an aluminum car door, comprising: a fixed body 1, a support unit 2, a locking unit 3, and an adjustable magnetic pin 4. The support unit 2 is installed at the first end of the fixed body 1, the locking unit 3 is installed on the fixed body 1, and the adjustable magnetic pin 4 is installed at the second end of the fixed body 1. The fixed body 1 is fixed to the door lock hole via the support unit 2 and the locking unit 3. After the car door is closed, the adjustable magnetic pin 4 is attracted to the door frame sheet metal to fix the car door. The car door is leveled by rotating and adjusting the adjustable magnetic pin 4.

[0033] Furthermore, the fixing body 1 is a bent plate, which includes a first main board, a second main board, a third main board, and a fourth main board. The first end of the first main board is the first end of the fixing body 1; the second end of the first main board is connected to the first end of the second main board; the second end of the second main board is connected to the first end of the third main board; the second end of the third main board is connected to the first end of the fourth main board; and the second end of the fourth main board is the second end of the fixing body 1. A first angle is formed between the first and second main boards; a second angle is formed between the second and third main board supports; and a third angle is formed between the third and fourth main boards. It should be understood that the first, second, and third angles can be adjusted as needed.

[0034] Furthermore, the support unit 2 includes a sleeve 21 and a first fastener 22. The sleeve 21 has a through hole with internal threads. The first fastener 22 includes a first connector and a first stop. The outer wall of the first connector has external threads, and the first stop is located at the first end of the first connector. The diameter of the first stop is larger than the diameter of the first connector, and the external threads on the outer wall of the first connector match the internal threads on the through hole of the sleeve 21. The second end of the first connector is inserted into the first main board from one side, and the first connector is threadedly connected to the sleeve on the other side of the first main board.

[0035] Furthermore, the first main board has a first hole, the diameter of which matches the diameter of the through hole in the sleeve and the diameter of the first connector. The diameter of the first hole is smaller than the diameter of the first stop. The second end of the first connector is inserted into the first hole from one side of the first main board, and the first connector is threadedly connected to the sleeve that fits on the other side of the first hole.

[0036] In one specific embodiment, the first fastener is a bolt.

[0037] Furthermore, the locking unit 3 includes a second fastener 31 and a first locking member 32. The first locking member 32 has a through hole with internal threads. The second fastener 31 includes a second connector and a second stop. The outer wall of the second connector has external threads, and the second stop is located at the first end of the second connector. The diameter of the second stop is larger than the diameter of the second connector, and the external threads on the outer wall of the second connector match the internal threads on the through hole of the first locking member 32. The second end of the second connector is inserted into the third main board from one side, and the second connector is threadedly connected to the first locking member 32, which is attached to the other side of the third main board.

[0038] Furthermore, a second hole is formed on the third main board. The diameter of the second hole matches the diameter of the through hole in the first locking member 32 and the diameter of the second connector. The diameter of the second hole is smaller than the diameter of the second stop. The second end of the second connector is inserted into the second hole from one side of the third main board, and the second connector is threadedly connected to the first locking member 32, which is fitted to the other side of the second hole.

[0039] In one specific embodiment, the second fastener is a screw and the first locking element is a nut.

[0040] Furthermore, the adjustable magnetic pin 4 includes a second locking member 41 and a third fastener 42. The second locking member 41 has a through hole with internal threads, and is fixed to one side of the fourth main board. The third fastener 42 includes a third connector and a third stop. The third stop is magnetic, and the outer wall of the third connector has external threads. The third stop is located at the first end of the third connector, and its diameter is larger than that of the third connector. The external threads on the outer wall of the third connector match the internal threads on the through hole of the first locking member. The second end of the third connector is inserted into the fourth main board from the other side, and is threadedly connected to the second locking member 41 fixed to one side of the fourth main board. The door can be leveled by rotating and adjusting the third fastener 42.

[0041] Furthermore, a third hole is opened on the fourth main board. The diameter of the third hole matches the diameter of the through hole in the second locking member 41 and the diameter of the third connector. The diameter of the third hole is smaller than the diameter of the third stop. The second end of the third connector is inserted into the third hole from the other side of the fourth main board. The third connector is threadedly connected to the second locking member 41 fixed on one side of the third hole.

[0042] In one specific embodiment, the second locking element is a threaded washer, and the third fastener is a magnetic screw.

[0043] Figure 2a , Figure 2b , Figure 2c , Figure 2d This is a general schematic diagram of various angles of an aluminum car door leveling device according to an embodiment of the present invention. The application of the aluminum car door leveling device according to an embodiment of the present invention is as follows: Figure 3 As shown in the diagram, in one embodiment of the present invention, the leveling device for an aluminum car door is installed in the door lock hole. A sleeve 21 rests against end A of the door lock hole, and a second fastener 31 (e.g., a screw) is inserted into end B of the door lock hole. The device is then fixed using the elastic tension of the fixing body 1 (e.g., a bent plate). The leveling device is thus installed. After the door is closed, a third fastener 42 (e.g., a magnetic screw) adheres to the sheet metal C of the side door frame to secure the door. The leveling function of the door can be achieved by rotating and adjusting the third fastener 42 (e.g., the magnetic screw).

[0044] The leveling device for aluminum car doors of the present invention has the following beneficial effects:

[0045] 1. This invention can save installation and disassembly time, meeting the needs of high-speed production.

[0046] 2. The leveling device of the present invention has obvious cost advantages and can meet the needs of large-scale application scenarios.

[0047] 3. The leveling device proposed in this invention has a volume much smaller than that of existing leveling devices, and its weight is also much lower. The leveling device of this invention offers excellent stability on the production line as it moves with the vehicle, has no adverse effects when doors are opened, and provides significant advantages in terms of convenience during cyclic transfers.

[0048] 4. This invention can well support and complement the application of new technologies in automatic gap and surface difference detection systems. Before detection, this device can be used to maintain the stability of the four-door matching state.

[0049] 5. The leveling device of the present invention can be used for all four doors without distinguishing between left and right doors.

[0050] This invention provides a new solution for leveling aluminum four-door doors. It should be understood that due to differences in door structure and size among different vehicle models, the size and structure of the fixing body 1, the distance and angle between the support unit 2 and the locking unit 3, and the size of the adjustable magnetic pin 4 may require corresponding adjustments.

[0051] It should be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" used in the description of this application should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal connection of two components. Those skilled in the art can understand its specific meaning in this application according to the specific circumstances. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] The embodiments described above are merely further illustrations of the present invention and are not intended to limit the present invention in any other way. The present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding modifications and changes based on the present invention, but all such modifications and changes should fall within the protection scope of the present invention.

Claims

1. A leveling device for an aluminum car door, characterized in that, include: The fixed body comprises a support unit, a locking unit, and an adjustable magnetic pin. The support unit is installed at the first end of the fixed body, the locking unit is installed on the fixed body, and the adjustable magnetic pin is installed at the second end of the fixed body. The fixed body is fixed to the door lock hole by the support unit and the locking unit. After the door is closed, the adjustable magnetic pin is attracted to the door frame sheet metal to fix the door. The adjustable magnetic pin can be rotated to adjust the door level. The fixing body is a bent plate, which includes a first main board, a second main board, a third main board and a fourth main board. The first end of the first main board is the first end of the fixing body. The second end of the first main board is connected to the first end of the second main board. The second end of the second main board is connected to the first end of the third main board. The second end of the third main board is connected to the first end of the fourth main board. The second end of the fourth main board is the second end of the fixing body. Among them, the first motherboard and the second motherboard form a first angle, the second motherboard and the third motherboard form a second angle, and the third motherboard and the fourth motherboard form a third angle.

2. The leveling device for an aluminum door according to claim 1, characterized in that, The support unit includes a sleeve and a first fastener. The sleeve has a through hole with an internal thread. The first fastener includes a first connector and a first stop. The outer wall of the first connector has an external thread. The first stop is located at the first end of the first connector. The diameter of the first stop is larger than the diameter of the first connector. The external thread on the outer wall of the first connector matches the internal thread on the through hole of the sleeve. The second end of the first connector is inserted into the first main board from one side. The first connector is threadedly connected to the sleeve that is attached to the other side of the first main board.

3. The levelling device of an aluminium door according to claim 2, characterised in that, The first main board has a first hole. The diameter of the first hole matches the diameter of the through hole in the sleeve and the diameter of the first connector. The diameter of the first hole is smaller than the diameter of the first stop. The second end of the first connector is inserted into the first hole from one side of the first main board. The first connector is threadedly connected to the sleeve that fits on the other side of the first hole.

4. The leveling device for an aluminum door according to claim 1, wherein The locking unit includes a second fastener and a first locking member. The first locking member has a through hole and an internal thread. The second fastener includes a second connector and a second stop. The outer wall of the second connector has an external thread. The second stop is located at the first end of the second connector. The diameter of the second stop is larger than the diameter of the second connector. The external thread on the outer wall of the second connector matches the internal thread on the through hole of the first locking member. The second end of the second connector is inserted into the third main board from one side. The second connector is threadedly connected to the first locking member, which is attached to the other side of the third main board.

5. The levelling device of an aluminium door according to claim 4, characterised in that, The third main board has a second hole. The diameter of the second hole matches the diameter of the through hole in the first locking member and the diameter of the second connector. The diameter of the second hole is smaller than the diameter of the second stop. The second end of the second connector is inserted into the second hole from one side of the third main board. The second connector is threadedly connected to the first locking member that fits on the other side of the second hole.

6. Levelling device for an aluminium door according to claim 4 or 5, characterised in that The second fastener is a screw, and the first locking element is a nut.

7. The leveling device for an aluminum door according to claim 1, wherein The adjustable magnetic pin includes a second locking member and a third fastener. The second locking member has a through hole inside and an internal thread on the through hole. The second locking member is fixed to one side of the fourth main board. The third fastener includes a third connector and a third stop. The third stop is magnetic. The outer wall of the third connector has an external thread. The third stop is located at the first end of the third connector. The diameter of the third stop is larger than the diameter of the third connector. The external thread on the outer wall of the third connector matches the internal thread on the through hole of the first locking member. The second end of the third connector is inserted into the fourth main board from the other side. The third connector is threadedly connected to the second locking member fixed to one side of the fourth main board. The door is leveled by rotating and adjusting the third fastener.

8. The leveling device for an aluminum car door according to claim 7, characterized in that, The fourth main board has a third hole. The diameter of the third hole matches the diameter of the through hole in the second locking member and the diameter of the third connector. The diameter of the third hole is smaller than the diameter of the third stop. The second end of the third connector is inserted into the third hole from the other side of the fourth main board. The third connector is threadedly connected to the second locking member fixed on one side of the third hole.

9. The leveling device for an aluminum car door according to claim 7 or 8, characterized in that, The second locking element is a threaded washer, and the third fastener is a magnetic screw.

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