A concealed door handle installation structure

Abstract

This utility model belongs to the field of automotive parts technology. Specifically, it relates to a concealed door handle mounting structure. The concealed door handle mounting structure includes a door sheet metal and a handle body. The door sheet metal has mounting holes and includes a stop block and a clamping block. The stop block is mounted on the handle body, and the clamping block passes through the stop block and the mounting holes to connect with the door sheet metal. The clamping block has a clamping structure. By continuing to tighten the bolts, the raised protrusion in the stop hole is compressed, and the clamping head gradually conforms to the door sheet metal. Simultaneously, the sliding spiral sleeve slides axially to compensate for the tolerance in the clamping direction, ultimately tightly fixing the handle body, stop block, and clamping block to the door sheet metal. This results in better assembly of the handle body and prevents the handle from loosening.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology. Specifically, this utility model relates to a concealed door handle installation structure. Background Technology

[0002] In recent years, with the rapid development of automotive electrification and intelligence, concealed door handles have been widely used due to their aesthetic appeal and high-tech feel. In the domestic market, the proportion of new cars equipped with concealed door handles has exceeded 60%. However, in the process of market application, concealed door handles have exposed many problems. Existing concealed handles require high precision in parts and skilled assembly; improper assembly often leads to loosening of the handle later, affecting its usability.

[0003] Chinese patent (publication number: 219691313U) discloses a concealed electric door handle for automobiles, belonging to the field of automotive parts. It includes a handle cover, a handle body, a drive rod, a support plate, a connecting rod, a swing arm, a transmission rod, a swivel rod, and a tie rod. The handle cover is mounted on the handle body, and the support plate is fixed to the automotive door sheet metal. The handle body, drive rod, swing arm, and transmission rod are all mounted on the support plate. However, this concealed handle is difficult to assemble, and the handle is prone to loosening later. Utility Model Content

[0004] This utility model is designed to solve the above-mentioned problems and aims to provide a concealed door handle installation structure with good assembly effect and less tendency for the handle to loosen. To achieve the above objective, the technical solution adopted by this utility model is as follows: a concealed door handle installation structure, including a car door sheet metal and a handle body, wherein the car door sheet metal is provided with an installation hole, and includes a stop block and a pressing block. The stop block is disposed on the handle body, and the pressing block passes through the stop block and the installation hole and is connected to the car door sheet metal. The pressing block is provided with a pressing structure.

[0005] The clamping block includes a guide cone and a clamping head. One end of the clamping head is connected to the guide cone, and the other end of the clamping head is connected to a sliding shaft. The guide cone and the clamping head pass through the mounting hole. The clamping head abuts against the body sheet metal, and the sliding shaft cooperates with the stop block.

[0006] The stop block includes a stop block body, a stop hole that mates with the sliding shaft, a stop boss on the sliding shaft, a guide hole that mates with the stop boss on the stop block, a limit boss inside the stop hole, and the stop boss abutting against the limit boss.

[0007] The clamping structure includes a locking bolt, the end of the sliding shaft has a threaded hole, the handle body is connected to a sliding spiral sleeve, the sliding spiral sleeve abuts against the stop block body, and the locking bolt passes through the sliding spiral sleeve and connects to the threaded hole.

[0008] A damping rib is provided inside the stop hole, and a damping groove is provided on the sliding shaft, with the damping rib located inside the damping groove.

[0009] The stop block body is provided with a connecting ear plate, the connecting ear plate is connected to a limit pin, and the handle body is provided with a positioning hole that cooperates with the limit pin.

[0010] A lifting protrusion is provided inside the stop hole, and the lifting protrusion abuts against the clamping head.

[0011] A damping rib is provided inside the stop hole, and a damping groove is provided on the sliding shaft, with the damping rib located inside the damping groove.

[0012] A gasket is provided between the locking bolt and the sliding screw sleeve.

[0013] The stop block body is provided with a weight reduction groove.

[0014] The technical advantages of this utility model are as follows: First, pre-positioning assembly is performed. The stop block is aligned with and inserted into the positioning hole of the handle body via the limiting pin on its connecting ear plate, thus completing the precise positioning of the stop block and the handle body. The sliding shaft of the clamping block is then inserted into the stop hole of the stop block. After the stop boss on the sliding shaft passes through the guide hole of the stop block, the sliding shaft is rotated to engage the damping rib with the damping groove. Next, the clamping block is lifted, and with the help of the conical guiding action of its guide cone, it is aligned with the mounting hole on the door sheet metal, and the guide cone is... The clamping heads are inserted into the mounting holes one by one. During insertion, the clamping heads are compressed. After they are fully inserted, they return to their original shape and abut against one side of the door sheet metal, while the stop boss abuts against the other side of the door sheet metal. Then, the tightening stage begins. First, the sliding screw sleeve is installed on the handle body, with one end abutting against the stop block body. Next, the locking bolt is passed through the sliding screw sleeve and rotates into the threaded hole at the end of the sliding shaft. The locking bolt is gradually tightened. During this process, the clamping block rotates relative to the stop block. When it rotates to 45°, the limiting boss in the stop hole of the stop block abuts against the stop boss of the sliding shaft, limiting further rotation. As the bolt is tightened further, the lifting boss in the stop hole is compressed, and the clamping heads gradually fit against the door sheet metal. At the same time, the sliding screw sleeve slides axially to compensate for the tolerance in the clamping direction. Finally, the handle body, stop block, clamping block, and door sheet metal are tightly fixed together, completing the entire installation process. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following: Figure 1This is a cross-sectional view of the overall structure of a concealed door handle installation structure according to this utility model; Figure 2 This is a schematic diagram of the stop block structure of a concealed door handle installation structure according to this utility model; Figure 3 This is a sectional view of a stop block in a concealed door handle installation structure according to this utility model; Figure 4 This is a schematic diagram of the pressing block structure of a concealed door handle installation structure according to this utility model; Figure 5 This is a schematic diagram showing the state of the stop hole and clamping block during transportation of a concealed door handle installation structure according to this utility model. Figure 6 This is a schematic diagram of the assembly of the stop hole and the clamping block in a concealed door handle installation structure according to this utility model.

[0016] The markings in the diagram are as follows: 1. Door sheet metal; 2. Handle body; 201. Positioning hole; 3. Stop block; 301. Stop block body; 302. Stop hole; 303. Guide hole; 304. Limiting boss; 305. Damping rib; 306. Lifting boss; 4. Pressing block; 401. Guide cone; 402. Pressing head; 403. Sliding shaft; 404. Damping groove; 405. Threaded hole; 5. Stopping boss; 6. Pressing structure; 601. Locking bolt; 602. Sliding spiral sleeve; 7. Gasket; 8. Weight reduction groove; 9. Connecting ear plate; 901. Limiting pin. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0018] like Figures 1-6 As shown, a concealed door handle mounting structure includes a door panel 1 and a handle body 2. The door panel 1 has mounting holes and includes a stop block 3 and a clamping block 4. The stop block 3 is mounted on the handle body 2, and the clamping block 4 passes through the stop block 3 and the mounting holes to connect with the door panel 1. The clamping block 4 has a clamping structure 6. The handle body 2 is connected to the stop block 3, and the stop block 3 is connected to the clamping block 4. By pressing one end of the clamping block 4 into the mounting holes, the clamping block 4 is connected to the door panel 1. Finally, the clamping structure 6 further secures the connection between the stop block 3, the clamping block 4, and the handle body 2 and the door panel 1.

[0019] The clamping block 4 includes a guide cone 401 and a clamping head 402. One end of the clamping head 402 is connected to the guide cone 401, and the other end is connected to a sliding shaft 403. The guide cone 401 and the clamping head 402 pass through the mounting hole, and the clamping head 402 abuts against the body sheet metal. The sliding shaft 403 cooperates with the stop block 3. The guide cone 401 adopts a tapered structure, which can accurately locate the mounting hole of the door sheet metal 1 and reduce the alignment difficulty. Utilizing the guiding characteristics of the tapered inclined surface, the clamping head 402 can smoothly pass through the mounting hole, reducing installation resistance. Through the stop block 3, it is initially connected to the handle body 2. After the guide cone 401 and the clamping head 402 pass through the mounting hole, the handle body 2 can be initially fixed. Through the cooperation of the sliding shaft 403 and the stop block 3, the clamping block 4 and the stop block 3 are engaged together.

[0020] The stop block 3 includes a stop block body 301, a stop hole 302 that mates with the sliding shaft 403 on the stop block body 301, a stop boss 5 on the sliding shaft 403, a guide hole 303 that mates with the stop boss 5 on the stop block 3, and a limiting boss 304 provided in the stop hole 302, with the stop boss 5 abutting against the limiting boss 304. The stop block 3 is connected to the handle body 2. The stop block body 301 is a ring structure. A stop hole 302 is provided at the center of the stop block body 301. The stop hole 302 cooperates with the sliding shaft 403. The stop bosses 5 are symmetrically connected on the sliding shaft 403. The guide hole 303 allows the stop bosses 5 to pass through the stop hole 302, so that the sliding shaft 403 and the stop bosses 5 can pass through the stop hole 302. After the stop bosses 5 pass through the guide hole 303, the sliding shaft 403 is rotated to complete the initial assembly of the stop block 3 relative to the clamping block 4. If the stop block 3 and the clamping block 4 need to be installed on the vehicle, the clamping structure 6 is installed and clamped. During the clamping process, the stop block 3 rotates 45 degrees relative to the clamping block 4, and the stop boss 5 abuts against the limiting boss 304. The limiting boss 304 limits the stop boss 5. The handle base 3 is initially connected to the stop block 3. The stop block 3 and the clamping block 4 are clamped by the clamping structure 6, thereby fixing the hidden door handle base 3 and the door sheet metal 1 together.

[0021] The clamping structure 6 includes a locking bolt 601, a threaded hole 405 at the end of the sliding shaft 403, a sliding screw sleeve 602 connected to the handle body 2, the sliding screw sleeve 602 abutting against the main body of the stop block 3, and the locking bolt 601 passing through the sliding screw sleeve 602 and connecting to the threaded hole 405. The sliding screw sleeve 602 is threaded onto the handle body 2. The sliding screw sleeve 602, the stop block 3, and the clamping block 4 are coaxially arranged. After the clamping block 4 is connected to the door sheet metal 1, the locking bolt 601 passes through the sliding screw sleeve 602 and the stop block 3 and is threaded onto the clamping block 4. The end of the locking bolt 601 abuts against the sliding screw sleeve 602. The sliding screw sleeve 602 is threaded onto the handle body 2. During the locking process of the locking bolt 601, the sliding screw sleeve 602 can slide forward or backward along the axial direction, thus absorbing the tolerance in the direction parallel to the clamping direction. The sliding screw sleeve 602 drives the handle body 2, thereby clamping the handle body 2 and the door sheet metal 1 together, completing the assembly and fixing the hidden door handle and the door sheet metal 1 together.

[0022] The stop block body 301 is provided with a connecting ear plate 9, which is connected to a limit pin 901. The handle body 2 has a positioning hole 201 that mates with the limit pin 901. The connecting ear plate 302, the limit pin 303, and the positioning hole 201 together constitute the precise positioning between the stop block 3 and the handle body 2. The connecting ear plate 9 extends from the stop block body 301 to provide an installation position for the limit pin 901, which mates with the positioning hole 201 on the handle body 2. During assembly, the limit pin 901 is aligned and inserted into the positioning hole 201, which quickly determines the accurate position of the stop block 3 on the handle body 2, effectively limiting the relative displacement and rotation of the stop block 3 and the handle body 2 in the plane.

[0023] A lifting boss 306 is provided inside the stop hole 302, and the lifting boss 306 abuts against the clamping head 402. The lifting boss 306 is located inside the stop hole 302 and abuts against the clamping head 402. In the initial state, the lifting boss 306 lifts the clamping block 4 upward, ensuring that there is a sufficient gap between the clamping head 402 and the door sheet metal 1. During the clamping process of the clamping structure 6, the lifting boss 306 is compressed, allowing the clamping head 402 to fit against the door sheet metal and form a reliable clamping. At the same time, the elastic reaction force of the lifting boss 306 helps to improve the anti-loosening ability of the mounting point and enhance the connection stability.

[0024] A damping rib 305 is provided inside the stop hole 302, and a damping groove 404 is provided on the sliding shaft 403, with the damping rib 305 located within the damping groove 404. The damping ribs 305 are symmetrically arranged inside the stop hole 302. During transportation and handling, the sliding shaft 403 and the stop boss 5 can pass through the stop hole 302 and rotate the sliding shaft 403, causing the damping rib 305 and the damping groove 404 to generate appropriate friction. This effectively prevents the clamping block 4 from rotating unexpectedly due to vibration, tilting, or other external forces when not in use, avoiding component misalignment or structural damage. Simultaneously, during the tightening process of the locking bolt 601, under the action of rotational torque, the sliding shaft 403 can also compress the damping rib 305 until the stop boss 5 abuts against the limiting boss 304. After installation, the sliding shaft 403 is less likely to loosen under the action of the damping rib 305.

[0025] A washer 7 is provided between the locking bolt 601 and the sliding screw sleeve 602. The washer 7 prevents the locking bolt 601 from directly rubbing against the end face of the sliding screw sleeve 602 during tightening, reducing wear and indentations on the sliding screw sleeve 602 and keeping the contact surface flat. The washer 7 can evenly transmit pressure, making the sliding screw sleeve 602 more balanced and reducing the risk of loosening caused by uneven force.

[0026] The stop block body 301 is provided with a weight reduction groove 8. Without affecting the structural strength of the stop block 3, the weight reduction groove 8 reduces the amount of material used and the overall weight of the part by partially hollowing out the material. At the same time, it increases the heat dissipation area on the surface of the stop block body 301, which helps to better dissipate the heat generated by friction during operation and reduce the risk of thermal deformation.

[0027] During assembly, pre-positioning assembly is performed first. The stop block 3 is aligned with and inserted into the positioning hole 201 of the handle body 2 via the limiting pin 901 on its connecting ear plate 9, completing the precise positioning of the stop block 3 and the handle body 2. The sliding shaft 403 of the clamping block 4 is then inserted into the stop hole 302 of the stop block 3. After the stop boss 5 on the sliding shaft 403 passes through the guide hole 303 of the stop block 3, the sliding shaft 403 is rotated to engage the damping rib 305 with the damping groove 404. Then, with the help of the conical guidance of its guide cone 401, it is aligned with the mounting hole on the door sheet metal 1, and the guide cone 401 is aligned with the clamping head 40. 2. The clamping head 402 is inserted into the mounting holes in sequence. During the insertion of the clamping head 402, it is squeezed. After the clamping head 402 is fully inserted, it returns to its original shape and abuts against one side of the door sheet metal 1. The stop boss 5 abuts against the other side of the door sheet metal 1. Then, the tightening stage begins. First, the sliding screw sleeve 602 is installed on the handle body 2, so that one end abuts against the stop block body 301. Then, the locking bolt 601 is inserted through the sliding screw sleeve 602 and rotates to engage with the threaded hole 405 at the end of the sliding shaft 403. The locking bolt 601 is gradually tightened. During the process, the clamping block 4 will rotate relative to the stop block 3. When it rotates to 45°, At this time, the limiting boss 304 in the stop hole 302 of the stop block 3 abuts against the stop boss 5 of the sliding shaft 403, restricting further rotation; continue to tighten the locking bolt 601, the lifting boss 306 in the stop hole 302 is compressed, the pressing head 402 gradually fits against the door sheet metal 1, and at the same time the sliding spiral sleeve 602 slides along the axial direction to compensate for the tolerance of the pressing direction, and finally the handle body 2, the stop block 3, the pressing block 4 are tightly fixed to the door sheet metal 1, completing the entire installation process.

[0028] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A concealed door handle mounting structure, comprising a door sheet metal (1) and a handle body (2), wherein the door sheet metal (1) is provided with mounting holes, characterized in that, It includes a stop block (3) and a clamping block (4). The stop block (3) is set on the handle body (2). The clamping block (4) passes through the stop block (3) and the mounting hole and is connected to the door sheet metal (1). The clamping block (4) is provided with a clamping structure (6).

2. The concealed door handle installation structure according to claim 1, characterized in that: The clamping block (4) includes a guide cone (401) and a clamping head (402). One end of the clamping head (402) is connected to the guide cone (401), and the other end of the clamping head (402) is connected to a sliding shaft (403). The guide cone (401) and the clamping head (402) pass through the mounting hole. The clamping head (402) abuts against the body sheet metal. The sliding shaft (403) cooperates with the stop block (3).

3. The concealed door handle installation structure according to claim 2, characterized in that: The stop block (3) includes a stop block body (301), a stop hole (302) that cooperates with the sliding shaft (403) is provided on the stop block body (301), a stop boss (5) is provided on the sliding shaft (403), a guide hole (303) that cooperates with the stop boss (5) is provided on the stop block (3), a limit boss (304) is provided in the stop hole (302), and the stop boss (5) abuts against the limit boss (304).

4. The concealed door handle installation structure according to claim 3, characterized in that: The clamping structure (6) includes a locking bolt (601), the end of the sliding shaft (403) is provided with a threaded hole (405), the handle body (2) is connected to a sliding screw sleeve (602), the sliding screw sleeve (602) abuts against the main body of the stop block (3), and the locking bolt (601) passes through the sliding screw sleeve (602) and connects to the threaded hole (405).

5. The concealed door handle installation structure according to claim 3, characterized in that: The stop block body (301) is provided with a connecting ear plate (9), the connecting ear plate (9) is connected to a limit pin (901), and the handle body (2) is provided with a positioning hole (201) that cooperates with the limit pin (901).

6. The concealed door handle installation structure according to claim 3, characterized in that: A lifting boss (306) is provided inside the stop hole (302), and the lifting boss (306) abuts against the pressing head (402).

7. The concealed door handle installation structure according to claim 3, characterized in that: A damping rib (305) is provided in the stop hole (302), and a damping groove (404) is provided on the sliding shaft (403), with the damping rib (305) located in the damping groove (404).

8. The concealed door handle installation structure according to claim 4, characterized in that: A gasket (7) is provided between the locking bolt (601) and the sliding screw sleeve (602).

9. The concealed door handle installation structure according to claim 3, characterized in that: The stop block body (301) is provided with a weight reduction groove (8).

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