Control rod pre-installation structure of vehicle door handle

Abstract

The utility model discloses a control rod pre-installation structure of a car door handle, which comprises a handle base connected with a car door metal plate and a handle arranged on the handle base, a connecting rotating shaft is inserted on the handle base, a control rod is rotatably arranged on the connecting rotating shaft in a sliding mode, the control rod is connected with an unlocking pull rope, and the unlocking pull rope is connected with the handle base. The connecting rotating shaft is sleeved with a pre-tightening spring, one end of the pre-tightening spring abuts against the handle base, and the other end of the pre-tightening spring abuts against the control rod so that the control rod can be kept at the current position. The handle base is provided with a connecting groove allowing the unlocking end of the handle to be placed in, the control rod is provided with a connecting part, the connecting part is kept in an insertion path of the unlocking end under the action of the pre-tightening spring, and the unlocking end abuts against the connecting part through the connecting groove so that the connecting part can slide away from the connecting groove and compress the pre-tightening spring. And the pre-tightening spring drives the control rod to reset, so that the connecting part and the unlocking end are clamped and form transmission.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a pre-installation structure for a door handle control lever. Background Technology

[0002] The door handle is one of the most frequently used parts of a vehicle. It usually contains a complex mechanical linkage mechanism to transmit the user's pulling action to the door lock, thereby unlocking and opening the door.

[0003] Existing car door handles typically consist of an outer handle housing and an internal mechanical transmission mechanism. The core of the internal mechanism is a rotatable control lever, which is mounted on a handle base fixed to the door sheet metal via a connecting shaft. One end of the control lever is connected to the door lock mechanism via a pull rope or linkage, while the other end is designed with a connecting part for mating with the external handle connection end. The handle is installed by connecting with the handle through the connecting part.

[0004] However, due to the lack of a pre-tightening structure in existing door handles, operators must first roughly align the connecting end of the external handle with the connecting part on the control lever. However, since the control lever is not effectively positioned, its connecting part is often not in the correct position. This forces operators to use their fingers or tools to reach into the narrow space, move and force the control lever to the appropriate position, and while maintaining this state, coordinate with the other hand to push the handle connecting end in and engage it. The whole process requires both hands to work together in a limited field of vision, which is not only time-consuming and laborious, but also very easy to cause assembly failure or component damage due to inaccurate alignment or improper force. This is the main bottleneck affecting assembly efficiency and quality. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes a pre-installation structure for the control lever of a car door handle.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A pre-installed structure for a control lever of a car door handle includes a handle base connected to the sheet metal of the car door and a handle disposed on the handle base. A connecting shaft is inserted into the handle base, and a control lever is rotatably mounted on the connecting shaft. The control lever is connected to an unlocking pull cord. A pre-tensioning spring is sleeved on the connecting shaft. One end of the pre-tensioning spring abuts against the handle base, and the other end of the pre-tensioning spring abuts against the control lever to keep the control lever in its current position.

[0008] The handle base has a connecting groove for the unlocking end of the handle to be inserted. The control rod has a connecting part. The connecting part is held in the insertion path of the unlocking end under the action of the pre-tightening spring. The unlocking end presses against the connecting part through the connecting groove, causing the connecting part to slide away from the connecting groove and compress the pre-tightening spring. The pre-tightening spring drives the control rod to reset, so that the connecting part and the unlocking end are engaged and form a transmission.

[0009] Preferably, the unlocking end of the handle has a snap-fit ​​groove for the connecting part to be inserted. With the above improvement, when the control rod is reset under the action of the pre-tightening spring, the connecting part will directly enter the snap-fit ​​groove from the side, realizing quick snap-fit ​​with the handle. Compared with the conventional door handle structure, the assembly speed and efficiency are further improved.

[0010] Preferably, the unlocking end of the handle is provided with a driving ramp, which abuts against the connecting part and forces the connecting part away from the connecting groove. Through the above improvement, by setting a driving ramp at the unlocking end, it can smoothly push the connecting part of the control rod when inserted into the connecting groove to compress the preload spring and realize the relocation of the control rod. In this process, the operator does not need to operate the control rod on the back of the door sheet metal, further improving the smoothness of operation.

[0011] Preferably, a first positioning protrusion is formed on the handle base, and a second positioning protrusion is formed on the control rod. The two ends of the preload spring are respectively sleeved on the first positioning protrusion and the second positioning protrusion. Through the above improvement, one end of the preload spring is sleeved on the first positioning protrusion and the other end is sleeved on the second positioning protrusion to ensure the stability and reliability of the preload spring installation and to avoid the preload spring from shifting during compression.

[0012] Preferably, the control lever is provided with a return spring, which is sleeved on the connecting shaft. One end of the return spring abuts against the handle base, and the other end of the return spring abuts against the control lever. With the above improvements, after the user completes the door opening action and releases the handle, the return spring can immediately provide a stable and reliable torque to drive the handle to quickly and smoothly return to the initial closed position automatically.

[0013] Preferably, the control rod has a positioning groove for inserting a return spring, and a sliding gap is formed between the return spring and the control rod. The handle base has a limiting groove for inserting one end of the return spring. Through the above improvements, the positioning groove and the limiting groove are used to limit and fix the return spring, thereby ensuring the stability of the return spring installation when the control rod slides. In addition, a certain sliding gap is set between the return spring and the control rod to prevent the position of the return spring from shifting when the handle base slides.

[0014] Preferably, the control lever is provided with a reset counterweight, and the reset counterweight is positioned away from the connecting part. Through the above improvement, by providing a reset counterweight on the control lever and positioning it away from the connecting part, the gravitational torque is used to assist the handle in resetting, making the handle reset action gentler, smoother and quieter. At the same time, the reliability of the reset action under long-term use is improved, and the service life of the reset spring is extended.

[0015] Preferably, the handle base has an insertion groove for inserting the connecting shaft, and when the connecting shaft is inserted into the insertion groove, one end of the connecting shaft abuts against the handle base. Through the above improvements, a precise and stable installation positioning is provided for the connecting shaft, and the abutting fit between the connecting shaft and the handle base ensures the installation accuracy of the connecting shaft position.

[0016] Preferably, the handle base has a guide opening that is opposite to the insertion slot, and the guide opening tends to converge along the insertion direction of the connecting shaft. Through the above improvements, precise initial guidance is provided for the assembly of the connecting shaft, and the accuracy and smoothness of the installation of the connecting shaft are improved.

[0017] Preferably, the control lever is provided with a trigger protrusion. With the above improvements, a micro switch can be set on the handle base. When the control lever is rotated to a certain angle, the trigger protrusion will abut against the micro switch to generate a reliable trigger signal. This realizes the direct conversion of mechanical action into electrical signal, which can be used to trigger welcome lights, lock / unlock feedback prompts, or link with the body controller and other extended functions, enriching the intelligence and interactive experience of the door handle.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects: By installing a pre-tightening spring on the connecting shaft, a pre-tightening force is provided to the control rod. In the pre-installation state, the control rod is stably held in the installation position under the action of the pre-tightening spring. During installation, the operator directly inserts the unlocking end of the handle into the connecting groove. At this time, the connecting part of the control rod makes room under the action of the handle, eliminating the need for the manual sliding control rod alignment operation required in conventional assembly. When the handle is inserted into place, the control rod automatically resets under the action of the pre-tightening spring, so that the connecting part accurately snaps into the handle to complete the assembly. This not only eliminates the conventional sliding steps of door handle assembly and greatly shortens the assembly time, but also achieves precise and smooth engagement through the guiding and resetting function of the pre-tightening spring, significantly improving assembly efficiency, operational convenience and component reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the handle and the car door sheet metal of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the handle and handle base of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the handle base and control lever of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure for mounting the connecting shaft of this utility model;

[0023] Figure 5 This is a schematic diagram of the control lever of this utility model;

[0024] Figure 6 This is a cross-sectional view of the handle base and control lever of this utility model.

[0025] Figure 7 For the present utility model Figure 3 A magnified view of a section at point A in the middle;

[0026] In the diagram: 1. Door sheet metal; 2. Handle base; 3. Connecting shaft; 4. Control lever; 5. Preload spring; 6. Connecting groove; 7. Connecting part; 8. Handle; 1.1. First positioning protrusion; 1.2. Second positioning protrusion; 1.3. Return spring; 1.4. Positioning groove; 1.5. Sliding clearance; 1.6. Limiting groove; 1.7. Return counterweight; 2.1. Snap-fit ​​groove; 2.2. Insertion groove; 2.3. Guide opening; 2.4. Trigger protrusion; 2.5. Drive slope; 3.1. Locking block; 3.2. Locking hook; 3.3. Rotation groove; 3.4. Guide plate. Detailed Implementation

[0027] 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.

[0028] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a pre-installed structure for a door handle control lever includes a handle base 2 connected to a door sheet metal 1, and a handle 8 disposed on the handle base 2. A connecting shaft 3 is inserted into the handle base 2, and a control lever 4 is rotatably mounted on the connecting shaft 3. The control lever 4 is connected to an unlocking pull rope. A pre-tension spring 5 is sleeved on the connecting shaft 3. One end of the pre-tension spring 5 abuts against the handle base 2, and the other end of the pre-tension spring 5 abuts against the control lever 4, so that the control lever 4 is held in the current position.

[0030] Specifically, one end of the handle 8 is provided with a locking block 3.1, and the other end is provided with a locking hook 3.2. The locking hook 3.2 is used as the unlocking end of the handle 8 and is connected to the control rod 4. The handle base 2 is provided with a rotating groove 3.3 for the locking block 3.1 to be inserted. During the installation process, the locking block 3.1 can be inserted into the rotating groove 3.3 first, and then the locking hook 3.2 can be connected to the control rod 4.

[0031] Furthermore, the handle base 2 is provided with a connecting groove 6 for the unlocking end of the handle 8 to be inserted, and the control rod 4 is provided with a connecting part 7. The connecting part 7 is held in the insertion path of the unlocking end under the action of the pre-tightening spring 5. The unlocking end presses against the connecting part 7 through the connecting groove 6, causing the connecting part 7 to slide away from the connecting groove 6 and compress the pre-tightening spring 5. After the connecting part 7 reaches the snap-fit ​​position, the pre-tightening spring 5 drives the control rod 4 to reset, so that the connecting part 7 snaps with the unlocking end and forms a transmission.

[0032] During the entire installation process of the handle 8, the operator only needs to insert the hook 3.2 into the connecting groove 6. As the hook 3.2 is inserted into the connecting groove 6, it will push open the connecting part 7. At this time, the control rod 4 moves away from the connecting groove 6 along the connecting shaft 3 under the pressure, and at the same time compresses the pre-tension spring 5, thus making room for the hook 3.2 to be inserted. There is no need to perform the manual sliding alignment operation of the control rod 4 required in conventional assembly. When the hook 3.2 is inserted into place, the control rod 4 automatically resets under the action of the pre-tension spring 5, so that the connecting part 7 is accurately engaged with the hook 3.2 to complete the assembly. This not only eliminates the conventional sliding steps of door handle 8 assembly, greatly shortening the assembly time, but also achieves precise and smooth engagement through the guiding and resetting function of the pre-tension spring 5, significantly improving assembly efficiency, operation convenience and component reliability.

[0033] When the control lever 4 is in the pre-installation position, it is stopped in the connecting groove 6 by the pre-tension spring 5, thereby ensuring the reliability of the connection between the control lever 4 and the handle 8.

[0034] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7As shown, to further explain the engagement between the handle 8 and the control lever 4, when the unlocking end of the handle 8 is inserted into the connecting groove 6 along the Y-axis, it will abut against the connecting part 7 and force the connecting part 7 to move along the X-axis to compress the preload spring 5. The unlocking end of the handle 8 has a locking groove 2.1 for the connecting part 7 to be inserted. The opening of the locking groove 2.1 faces the connecting part 7. After the unlocking end of the handle 8 is inserted into the position aligned with the locking groove 2.1, the locking groove 2.1 and the connecting part 7 are positioned opposite each other. At this time, when the control lever 4 is reset under the action of the preload spring 5, the connecting part 7 will directly enter the locking groove 2.1 from the side, realizing a quick engagement with the handle 8. Compared with the conventional door handle structure, this further improves the assembly speed and efficiency.

[0035] Furthermore, the unlocking end of the handle 8 is provided with a driving slope 2.5. After the unlocking end of the handle 8 is inserted into the connecting groove 6, the driving slope 2.5 abuts against the connecting part 7 and forces the connecting part 7 away from the connecting groove 6. The driving slope 2.5 enables the handle 8 to automatically and smoothly push the control lever 4 to compress the spring and make way when it is inserted into the connecting groove 6, further improving the smoothness of operation.

[0036] Preferably, a first positioning protrusion 1.1 is formed on the handle base 2, and a second positioning protrusion 1.2 is formed on the control lever 4. The two ends of the preload spring 5 are respectively sleeved on the first positioning protrusion 1.1 and the second positioning protrusion 1.2. One end of the preload spring 5 is sleeved on the first positioning protrusion 1.1 and the other end is sleeved on the second positioning protrusion 1.2 to ensure the stability and reliability of the installation of the preload spring 5 and to prevent the preload spring 5 from shifting during compression.

[0037] like Figure 2-7 As shown, in a further explanation of the implementation of the control lever 4, a return spring 1.3 is provided on the control lever 4. The return spring 1.3 is sleeved on the connecting shaft 3, and one end of the return spring 1.3 abuts against the handle base 2, and the other end abuts against the control lever 4. After the user completes the door opening action and releases the handle 8, the return spring 1.3 can immediately provide a stable and reliable torque to drive the handle 8 to quickly and smoothly spring back to the initial closed position automatically.

[0038] Specifically, a positioning groove 1.4 is formed on the control lever 4 for inserting the return spring 1.3, and a sliding gap 1.5 is formed between the return spring 1.3 and the control lever 4. A limiting groove 1.6 is formed on the handle base 2 for inserting one end of the return spring 1.3. The positioning groove 1.4 and the limiting groove 1.6 are used to limit and fix the return spring 1.3, thereby ensuring the stability of the return spring 1.3 when the control lever 4 slides.

[0039] A certain sliding gap 1.5 is provided between the return spring 1.3 and the control lever 4, so that when the control lever 4 slides under the action of the handle 8, it will not cause the position of the return spring 1.3 to shift.

[0040] Preferably, the control lever 4 is provided with a reset counterweight 1.7, and the reset counterweight 1.7 is set away from the connecting part 7. The gravity torque is used to assist the handle 8 in resetting, making the reset action of the handle 8 gentler, smoother and quieter. At the same time, it improves the reliability of the reset action under long-term use, and can effectively reduce the torque required for the reset spring 1.3 to reset, which helps to extend the service life of the reset spring 1.3.

[0041] Preferably, the limiting groove 1.6 is V-shaped to facilitate the installation of the return spring 1.3.

[0042] Preferably, the return spring 1.3 is a torsion spring.

[0043] like Figure 3 , Figure 7 As shown, in some other embodiments, the control lever 4 is provided with a trigger protrusion 2.4. A micro switch can be provided on the handle base 2. When the control lever 4 is rotated to a certain angle, the trigger protrusion 2.4 will abut against the micro switch to generate a reliable trigger signal. This realizes the direct conversion of mechanical action into electrical signal. It can be used to trigger welcome lights, lock / unlock feedback prompts, or link with the body controller and other extended functions, enriching the intelligence and interactive experience of the door handle 8.

[0044] like Figure 2 , Figure 3 , Figure 4 As shown, further explanation of the installation of the connecting shaft 3 is provided: the handle base 2 is provided with an insertion groove 2.2 for the connecting shaft 3 to be inserted; when the connecting shaft 3 is inserted into the insertion groove 2.2, one end of the connecting shaft 3 abuts against the handle base 2, providing a precise and stable installation position for the connecting shaft 3. The abutting fit between the connecting shaft 3 and the handle base 2 ensures the installation accuracy of the connecting shaft 3.

[0045] Furthermore, a guide port 2.3 is formed on the handle base 2 opposite to the insertion slot 2.2. The guide port 2.3 tends to converge along the insertion direction of the connecting shaft 3. The guide port 2.3 with the guiding convergence tendency is set on the opposite side of the insertion slot 2.2, which provides precise initial guidance for the assembly of the connecting shaft 3 and improves the accuracy and smoothness of the installation of the connecting shaft 3.

[0046] The handle base 2 has inclined guide plates 3.4, and the guide openings 2.3 are formed between the guide plates 3.4.

[0047] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A pre-installed structure for a door handle control lever, comprising a handle base (2) connecting to a door sheet metal (1), and a handle (8) disposed on the handle base (2), characterized in that, A connecting shaft (3) is inserted into the handle base (2). A control rod (4) is rotatably mounted on the connecting shaft (3). The control rod (4) is connected to an unlocking pull rope. A pre-tension spring (5) is sleeved on the connecting shaft (3). One end of the pre-tension spring (5) abuts against the handle base (2), and the other end of the pre-tension spring (5) abuts against the control rod (4) so ​​that the control rod (4) is held in the current position. The handle base (2) has a connecting groove (6) for the unlocking end of the handle (8) to be inserted. The control rod (4) has a connecting part (7). The connecting part (7) is held in the insertion path of the unlocking end under the action of the pre-tightening spring (5). The unlocking end presses against the connecting part (7) through the connecting groove (6), causing the connecting part (7) to slide away from the connecting groove (6) and compress the pre-tightening spring (5). The pre-tightening spring (5) drives the control rod (4) to reset, so that the connecting part (7) is engaged with the unlocking end and forms a transmission.

2. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: The handle (8) has a snap-fit ​​groove (2.1) on the unlocking end side for the connecting part (7) to be inserted.

3. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: The unlocking end of the handle (8) is provided with a driving slope (2.5), which abuts against the connecting part (7) and forces the connecting part (7) away from the connecting groove (6).

4. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: A first positioning protrusion (1.1) is formed on the handle base (2), a second positioning protrusion (1.2) is formed on the control rod (4), and the two ends of the preload spring (5) are respectively sleeved on the first positioning protrusion (1.1) and the second positioning protrusion (1.2).

5. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: A reset spring (1.3) is provided on the control lever (4). The reset spring (1.3) is sleeved on the connecting shaft (3), and one end of the reset spring (1.3) abuts against the handle base (2), and the other end of the reset spring (1.3) abuts against the control lever (4).

6. The pre-installation structure for the control lever of a car door handle according to claim 5, characterized in that: The control lever (4) has a positioning groove (1.4) for inserting the reset spring (1.3), and a sliding gap (1.5) is formed between the reset spring (1.3) and the control lever (4). The handle base (2) has a limiting groove (1.6) for inserting one end of the reset spring (1.3).

7. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: The control lever (4) is provided with a reset counterweight (1.7), and the reset counterweight (1.7) is disposed away from the connecting part (7).

8. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: The handle base (2) has an insertion groove (2.2) for inserting the connecting shaft (3), and one end of the connecting shaft (3) abuts against the handle base (2).

9. The pre-installation structure for the control lever of a car door handle according to claim 8, characterized in that: The handle base (2) has a guide opening (2.3) that is opposite to the insertion slot (2.2), and the guide opening (2.3) tends to converge along the insertion direction of the connecting shaft (3).

10. The pre-installation structure for the control lever of a car door handle according to claim 1, characterized in that: The control lever (4) is provided with a trigger protrusion (2.4).

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