A type of sliding concealed car door handle

Abstract

This utility model relates to a sliding concealed car door handle, belonging to the technical field of car door handles. It includes: a mounting bracket for connecting to the car door sheet metal; a transmission assembly including a cam hinged to the mounting bracket, a parallelogram-shaped rod mechanism, a transmission rod, and a tie rod connecting the rods. The parallelogram-shaped rod mechanism includes a front push rod that mates with the cam, a rear push rod that mates with the transmission rod, and a connecting rod hinged between the two. The transmission rod has a cylindrical platform at its side end that mates with the tie rod connecting the rod, and the cylindrical platform is configured to abut against the tie rod connecting the rod when the transmission rod rotates; and a handle assembly, the front end of which is hinged to the front push rod, and the rear end of which is hinged to the transmission rod. The sliding concealed car door handle provided by this utility model, through improvements to the transmission assembly structure, not only enhances the overall rigidity of the handle-related structures but also reduces space occupation, thus broadening its applicability.

Description

Technical Field

[0001] This utility model relates to the field of car door handle technology, specifically a push-type concealed car door handle. Background Technology

[0002] Concealed car door handles are widely used in new energy vehicles, offering advantages such as aesthetic appeal, low wind resistance, and a high-tech feel. Chinese patent CN220955142U discloses a motion mechanism for a concealed car door handle. In this mechanism, the rear push rod makes line-surface contact with the handle assembly, and the rear push rod and transmission rod are hinged roughly parallel to each other on both sides of the bracket. This structure typically requires sufficient installation space and is unsuitable for narrow door handles. If it needs to be installed in a narrow door handle, the structure of the rear push rod or transmission rod needs to be thinned, resulting in insufficient rigidity and potentially creating safety hazards. Therefore, improvements to the existing structure are urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a push-type concealed car door handle, which aims to improve the transmission structure of the concealed car door handle so that it can ensure structural rigidity and safety while having a wide range of applications.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a push-type concealed car door handle, comprising a mounting bracket, a transmission assembly, and a handle assembly. The mounting bracket is used to connect the car door sheet metal. The transmission assembly includes a cam hinged to the mounting bracket, a parallelogram rod mechanism, a transmission rod, and a tie rod. The parallelogram rod mechanism includes a front push rod that mates with the cam, a rear push rod that mates with the transmission rod, and a connecting rod hinged between the two. The side end of the transmission rod is provided with a cylindrical platform that mates with the tie rod. The cylindrical platform is configured to abut against the tie rod when the transmission rod rotates. The handle assembly has its front end hinged to the front push rod and its end hinged to the transmission rod.

[0005] In a preferred embodiment, the connecting rods are configured as two sets, respectively hinged to both sides of the front push rod and the rear push rod.

[0006] In a preferred embodiment, the transmission rod is provided with a hinge post at a position corresponding to the handle assembly, and the end of the handle assembly is provided with an elongated hole that mates with the hinge post.

[0007] In a preferred embodiment, the transmission rod has a groove structure on the side facing the rear push rod that roughly matches the rear push rod. The rear push rod is placed in the groove so that the two are coaxially hinged to the mounting bracket. The groove positions of the rear push rod and the transmission rod are in line-surface fit.

[0008] In a preferred embodiment, the transmission assembly further includes an inertial block connected to the mounting bracket, the inertial block being disposed on one side of the tie rod and configured to lock the position of the tie rod using inertial force in the event of a severe vehicle collision.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The sliding concealed car door handle provided by this utility model improves the structure of the transmission components, resulting in greater overall rigidity of the handle and reduced space occupation, thus broadening its applicability. Specifically, by improving the fit between the rear push rod, transmission rod, and handle assembly, the rear push rod and transmission rod are made to fit together linearly and are then hinged to the handle assembly via the transmission rod. This structure occupies less space, and the rear push rod and transmission rod can be reinforced. Furthermore, by incorporating a parallelogram-shaped linkage mechanism with two sets of connecting rods, the overall rigidity of the structure can be further enhanced. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the sliding concealed car door handle in this embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the parallelogram rod mechanism in an embodiment of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the transmission component and handle assembly in an embodiment of the present utility model;

[0014] Figure 4 This is a schematic diagram of the structure of the rear push rod and transmission rod cooperating in an embodiment of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the transmission rod and handle assembly in an embodiment of the present utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the transmission rod, the tie rod, and the inertia block in an embodiment of this utility model;

[0017] Figure 7 This is a schematic diagram of the handle assembly in a flush position according to an embodiment of the present utility model;

[0018] Figure 8 This is a schematic diagram of the handle assembly in the extended state in an embodiment of this utility model;

[0019] Figure 9 This is a schematic diagram of the handle assembly in its maximum open state in an embodiment of this utility model.

[0020] The meanings of the labels in the diagram are as follows:

[0021] 1. Mounting bracket; 2. Cam; 3. Front push rod; 4. Connecting rod; 5. Rear push rod; 6. Transmission rod; 61. Hinge column; 62. Cylindrical platform; 7. Handle assembly; 71. Long slot; 8. Tie rod connecting rod; 9. Inertia block; 11. Rotating end of bracket; 12. Hinge end of connecting rod; 13. Hinge end of handle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] This embodiment discloses a sliding concealed car door handle, including a mounting bracket 1 connected to the car door sheet metal, a transmission component connected through the mounting bracket 1, and a handle assembly 7.

[0025] like Figure 1 As shown, the transmission assembly includes a cooperating cam 2, a parallelogram-shaped linkage mechanism, a transmission rod 6, and a tie rod 8. The rotation of the cam 2 drives the parallelogram-shaped linkage mechanism and the transmission rod 6, thereby pushing the handle assembly 7 to the extended position. Manually pulling the handle assembly 7 causes the transmission rod 6 to rotate and act on the tie rod 8. The tie rod 8 further acts on a microswitch to open the door electrically or mechanically by the tie rod mechanism.

[0026] Specifically, cam 2 is rotatably connected to one side of mounting bracket 1. When the user touches the door opening switch, the capacitive sensor receives the sensing signal and transmits it to the vehicle control system. The control system sends a signal to the actuator to drive cam 2 to rotate. This control structure belongs to the prior art.

[0027] See Figure 2The parallelogram-shaped linkage mechanism includes a front push rod 3 and a rear push rod 5, which are respectively hinged to the mounting bracket 1, and two sets of connecting rods 4 hinged between the front push rod 3 and the rear push rod 5. The two sets of connecting rods 4 are respectively hinged to both sides of the front push rod 3 and the rear push rod 5.

[0028] Specifically, the front push rod 3 and the rear push rod 5 are each provided with a bracket rotation end 11 and a connecting rod hinge end 12. The bracket rotation end 11 is hinged to the mounting bracket 1 through a rotation shaft, and the connecting rod hinge end 12 is hinged to the connecting rod 4 through a hinge shaft.

[0029] One side of the front push rod 3 is in line with the cam 2, and the other side of the front push rod 3 is also provided with a handle hinge end 13. The handle hinge end 13 is hinged to the front end of the handle assembly 7. Under the action of the cam 2, the front push rod 3 rotates around its rotation axis, which drives the connecting rod 4 and the rear push rod 5 to move on the one hand, and pushes the front end of the handle assembly 7 to move on the other hand.

[0030] Combination Figures 3-5 The rear push rod 5 and the transmission rod 6 are in a line-surface fit. Specifically, the transmission rod 6 has a groove structure on the side facing the rear push rod 5 that roughly matches the rear push rod 5. The rear push rod 5 is placed in the groove, so that the two are coaxially hinged to the mounting bracket 1. The groove positions of the rear push rod 5 and the transmission rod 6 are in a line-surface fit. The rear push rod 5 receives the thrust from the connecting rod 4, causing it to rotate around its rotation axis. At the same time, the rotation pushes the transmission rod 6 to rotate around its own rotation axis. This integrated fit structure does not occupy too much space, making it more applicable and allowing enough space to reinforce the rear push rod 5 and the transmission rod 6 separately, thereby enhancing their rigidity. The other end of the transmission rod 6 is provided with a hinge post 61, which is hinged to the elongated hole 71 at the end of the handle assembly 7, and the hinge post 61 can slide within the elongated hole 71. Furthermore, driven by cam 2, the parallelogram linkage mechanism is linked, the front push rod 3 pushes the front end of the handle assembly 7 to move, and the rear push rod 5 pushes the transmission rod 6 to push the end of the handle assembly 7 out, thereby pushing the car door handle assembly 7 out to the out position.

[0031] See Figure 6The transmission rod 6 is also fixed to a cylindrical platform 62 for cooperating with the tie rod 8. The cylindrical platform 62 is roughly located at the middle of the transmission rod 6. The tie rod 8 is located on the side of the transmission shaft and is hinged to the mounting bracket 1. The transmission rod 6 is pushed by the rear push rod 5 to rotate. When the movement ends, the cylindrical platform 62 contacts the tie rod 8, generating a line-surface contact preload. At this time, the driver or passenger pulls the handle assembly 7 to make it rotate around the hinge axis with the front push rod 3. At the same time, it drives the transmission rod 6 to continue to rotate and press against the tie rod 8 until the tie rod 8 triggers the micro switch to unlock electrically, or moves to its mechanical unlocking stroke in the case of a power failure of the whole vehicle. At this time, the tie rod 8 drives the tie rod to unlock the door, and the door opens.

[0032] In this embodiment, the transmission assembly also includes an inertial block 9 connected to the mounting bracket 1. The inertial block 9 is disposed on one side of the tie rod 8 and is configured to lock the position of the tie rod 8 by inertial force when the vehicle is involved in a violent collision, preventing it from rotating, thereby preventing the door from opening accidentally and protecting the safety of the driver and passengers. The cooperation structure of the inertial block 9 and the tie rod 8 in this embodiment is the prior art, and its structure will not be described in detail here.

[0033] Combination Figures 7-9 For ease of understanding, the working principle of the sliding concealed car door handle provided in this embodiment is explained as follows:

[0034] The handle assembly 7 moves from the flush position to the extended position: the front push rod 3 and the rear push rod 5 are respectively hinged to the mounting bracket 1, and the parallelogram rod mechanism formed by the front push rod 3, the connecting rod 4, and the rear push rod 5 is linked under the action of the cam 2. The front push rod 3 rotates around its rotation axis, causing the front end of the handle assembly 7 hinged to it to be extended. The rear push rod 5 rotates around its rotation axis, causing the transmission rod 6, which is in line-surface contact with it, to push the end of the handle assembly 7 to be extended, thus completing the transition from the flush state to the extended state.

[0035] From the extended position to the maximum open position: The transmission rod 6 is hinged to the mounting bracket 1 and hinged to the elongated hole 71 of the handle assembly 7 through the hinge post 61. When the transmission rod 6 is pushed out by the rear push rod 5 to the end position, the transmission rod 6 makes line-surface contact with the tie rod 8. At this time, the handle assembly 7 is manually pulled to make the transmission rod 6 rotate around its hinge axis with the mounting bracket 1 and continue to contact the tie rod 8 and transmit pressure, thereby driving the tie rod 8 to rotate and trigger the micro switch to release the power (in this case, the handle assembly 7 only needs to rotate a small angle), or continue to rotate until its limit position, finally driving the tie rod to open the door (mechanical opening in emergency power failure state).

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flat push type hidden car door handle, characterized in that, include: Mounting bracket (1) is used to connect the door sheet metal; The transmission assembly includes a cam (2) hinged to the mounting bracket (1), a parallelogram rod mechanism, a transmission rod (6), and a tie rod (8). The parallelogram rod mechanism includes a front push rod (3) that engages with the cam (2), a rear push rod (5) that engages with the transmission rod (6), and a connecting rod (4) hinged between the two. The transmission rod (6) has a cylindrical platform (62) at its side end that engages with the tie rod (8). The cylindrical platform (62) is configured to abut against the tie rod (8) when the transmission rod (6) rotates. The handle assembly (7) is hinged at the front end to the front push rod (3) and at the end to the transmission rod (6).

2. The concealed door handle of claim 1, wherein, The connecting rod (4) is configured in two sets, which are respectively hinged to the front push rod (3) and the rear push rod (5) on both sides.

3. The concealed door handle of claim 1, wherein, The transmission rod (6) is provided with a hinge post (61) at the position corresponding to the handle assembly (7), and the end of the handle assembly (7) is provided with an elongated hole (71) that cooperates with the hinge post (61).

4. The concealed door handle of claim 1, wherein, The transmission rod (6) has a groove structure on the side facing the rear push rod (5) that roughly matches the rear push rod (5). The rear push rod (5) is placed in the groove so that the two are coaxially hinged to the mounting bracket (1). The groove positions of the rear push rod (5) and the transmission rod (6) are in line-surface fit.

5. The concealed door handle of claim 1, wherein, The transmission assembly also includes an inertial block (9) connected to the mounting bracket (1). The inertial block (9) is located on one side of the tie rod (8) and is configured to lock the position of the tie rod (8) by using inertial force when the vehicle is involved in a violent collision.

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