Linear push-out driving device

Abstract

The utility model belongs to the field of automobile parts, and provides a linear push-out driving device which comprises a shell, a push rod, a push rod and a push rod. The driving assembly and the telescopic rod are arranged in the containing cavity, and the output end of the driving assembly is movably arranged on the telescopic rod in a sleeving mode, so that the driving assembly can drive the telescopic rod to do linear reciprocating motion when doing rotary motion, and the vehicle door handle is pushed out. Compared with the prior art, the automobile door handle has the advantages that when the telescopic rod moves linearly, the two elastic pieces are driven to make contact with different circuits, signals of the position where the automobile door handle is located are given to customers under the condition that different closed-loop circuits are formed, the customers can conduct corresponding operation conveniently, and the use experience feeling of the customers is improved; and meanwhile, the linear reciprocating motion of the telescopic rod is directly achieved through the rotary motion generated when the worm is meshed with the output bevel gear, the structure is simple, the number of parts is reduced, and meanwhile the manufacturing cost and noise generated during operation are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts, and particularly relates to a linear push driving device. Background Art

[0002] With the rapid development of new energy vehicles, the pace of electrification and intelligentization of automobiles is getting faster and faster, and the electric optimization of automobile parts is essential.

[0003] The automobile door handle is an important part of the door system. More and more automobiles are beginning to adopt hidden door handles at present. However, the overall structure of the existing automobile door handle push driving device is relatively complex. That is, in the case of using more parts, it not only increases the manufacturing cost and generates noise during operation, but also the user cannot know the signal when the door handle is pushed out or retracted. Furthermore, it is not conducive to the user's operation, seriously affecting the user experience. Content of the Utility Model

[0004] Aiming at the above deficiencies existing in the prior art, the technical problem to be solved by the utility model is to propose a workpiece processing device and method with simple operation, which adds a secondary cavity and a reserved cavity in the mold cavity, and processes the product with multiple fixture tools, and finally processes the workpiece with an array of cutting heads.

[0005] The technical solution adopted by the utility model to solve its technical problems is to propose a linear push driving device, including: a housing, with an accommodation cavity formed inside;

[0006] A driving component and a telescopic rod, arranged in the accommodation cavity. The output end of the driving component is movably sleeved on the telescopic rod, so that when the driving component makes a rotational motion, it can drive the telescopic rod to make a linear reciprocating movement for pushing out the door handle;

[0007] A first circuit, a second circuit and a third circuit are arranged side by side in the accommodation cavity. The same end of the first circuit, the second circuit and the third circuit is connected to an external counterpart. Among them, a contact gap is formed at the end of the second circuit and the third circuit close to the telescopic rod. The telescopic rod is provided with a first elastic sheet and a second elastic sheet connected to each other. The first elastic sheet is movably pressed against the first circuit, and the second elastic sheet is movably pressed against the second circuit or the third circuit;

[0008] When the first elastic sheet is movably pressed against the first circuit and the second elastic sheet is movably pressed against the third circuit, the first circuit and the third circuit form a closed-loop circuit to form an electrical signal in the state where the door handle is not pushed out;

[0009] The second elastic piece can cross the contact gap and press against the second circuit when the telescopic rod moves linearly, so that the first circuit and the second circuit form a closed-loop circuit to form an electrical signal when the door handle is in the pushed-out state.

[0010] In the above linear push-out driving device, a bent portion is formed at the end of the third circuit, and the bent portion is located on one side of the end of the second circuit and jointly forms the contact gap with it.

[0011] In the above linear push-out driving device, the driving assembly includes:

[0012] A driving member is arranged in the accommodating cavity, and a worm is coaxially connected to the driving end of the driving member;

[0013] An output helical gear is arranged in the accommodating cavity, the output helical gear is movably sleeved on the telescopic rod, and is movably meshed with the worm.

[0014] In the above linear push-out driving device, the telescopic rod is a lead screw, and a spiral portion is arranged in the output helical gear, and the spiral portion is movably sleeved on the lead screw.

[0015] In the above linear push-out driving device, the housing is composed of an upper cover and a lower cover. A first groove is formed in the upper cover, and a second groove is formed in the lower cover. When the upper cover is connected to the lower cover, the first groove and the second groove jointly form the accommodating cavity.

[0016] In the above linear push-out driving device, the upper cover and the lower cover also jointly form a limiting groove. A limiting block is connected to the end of the telescopic rod, and the first elastic piece and the second elastic piece are both connected to the limiting block, and the limiting block is movably abutted against the two inner walls of the limiting groove.

[0017] In the above linear push-out driving device, connection holes are arranged at the peripheries of the upper cover and the lower cover, and buffer gaskets are arranged in the connection holes to reduce the vibration generated during the operation of the driving device.

[0018] In the above linear push-out driving device, a sealing ring sleeved on the end of the telescopic rod is also arranged between the upper cover and the lower cover.

[0019] In the above linear push-out driving device, a PCB board and a waterproof ring are also arranged on the housing. The PCB board can be connected to the first elastic piece and the second elastic piece, and the waterproof ring is sleeved on the PCB board.

[0020] In the above-mentioned linear pushing drive device, a PIN angled plug is provided on the housing, and the PIN angled plug is connected to an external counterpart.

[0021] Compared with the prior art, the advantages of the present utility model are as follows: through the contact gap formed between the second circuit and the third circuit, and in cooperation with the telescopic rod moving linearly to drive the first elastic piece and the second elastic piece to contact different circuits, signals at the position of the customer's car door handle are given under different closed-loop circuits, so as to facilitate corresponding operations by the customer, greatly improving the customer's usage experience; moreover, by directly using the rotational movement when the worm is engaged with the output bevel gear to realize the linear reciprocating movement of the telescopic rod, the overall structure is simple, the operation is convenient and fast, while reducing the use of components, it also reduces the manufacturing cost and the noise generated during operation. Description of the Drawings

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is Figure 1 a schematic structural view after removing the upper cover;

[0024] Figure 3 is a schematic installation structure view between the drive assembly, the telescopic rod, and each circuit and elastic piece;

[0025] Figure 4 is an exploded view of the telescopic rod and the output bevel gear when the telescopic rod is inside the upper cover.

[0026] In the figures, 1. housing; 10. upper cover; 100. first groove; 11. lower cover; 110. second groove; 12. accommodation cavity; 13. limiting groove; 14. connecting hole; 140. buffer gasket; 15. sealing ring; 16. PCB board; 17. waterproof ring; 18. PIN angled plug;

[0027] 2. drive assembly; 20. drive member; 21. worm; 22. output bevel gear; 220. spiral part;

[0028] 3. telescopic rod; 30. first elastic piece; 31. second elastic piece; 32. limiting block;

[0029] 40. first circuit; 41. second circuit; 42. third circuit; 420. bending part; 43. contact gap. Detailed Embodiments

[0030] The following are specific embodiments of the present utility model in combination with the drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0031] Such as Figures 1 to 4As shown in the figure, a linear push driving device of the present utility model includes: a housing 1, with an accommodation cavity 12 formed inside; a driving assembly 2 and a telescopic rod 3, arranged in the accommodation cavity 12. The output end of the driving assembly 2 is movably sleeved on the telescopic rod 3, so that when the driving assembly 2 makes a rotational movement, it can drive the telescopic rod 3 to make a linear reciprocating movement for pushing out the door handle; a first circuit 40, a second circuit 41, and a third circuit 42 are arranged side by side in the accommodation cavity 12. The same end of the first circuit 40, the second circuit 41, and the third circuit 42 are all connected to an external counterpart. Among them, a contact gap 43 is formed at the end of the second circuit 41 and the third circuit 42 close to the telescopic rod 3. The telescopic rod 3 is provided with a first elastic piece 30 and a second elastic piece 31 connected to each other. The first elastic piece 30 is movably pressed against the first circuit 40, and the second elastic piece 31 is movably pressed against the second circuit 41 or the third circuit 42; when the first elastic piece 30 is movably pressed against the first circuit 40 and the second elastic piece 31 is movably pressed against the third circuit 42, the first circuit 40 and the third circuit 42 form a closed-loop circuit to form an electrical signal in the state where the door handle is not pushed out; the second elastic piece 31 can cross the contact gap 43 and press against the second circuit 41 due to the linear movement of the telescopic rod 3, so that the first circuit 40 and the second circuit 41 form a closed-loop circuit to form an electrical signal in the state where the door handle is in the pushed-out state.

[0032] This solution mainly realizes the generation of electrical signals while the door handle switches between two extreme positions. Specifically, when the telescopic rod 3 is in Figure 2 the state shown, at this time the door handle is hidden inside the door. As can be seen from Figure 2 , the first elastic piece 30 connected to the left end of the telescopic rod 3 is pressed against and in contact with the first circuit 40, and the second elastic piece 31 is pressed against the third circuit 42. Therefore, the first circuit 40 and the second circuit 41 rely on the first elastic piece 30 and the second elastic piece 31 to jointly form a circuit to provide the customer with an electrical signal indicating that the door handle is in the hidden state. Similarly, when the driving assembly 2 drives the telescopic rod 3 along Figure 2When moving linearly to the right, the first elastic piece 30 and the second elastic piece 31 can generate displacements synchronously with the telescopic rod 3. During this process, the first elastic piece 30 always tightly abuts against the first circuit 40. When the second elastic piece 31 crosses the contact gap 43, it causes the first circuit 40 to form a separate circuit (i.e., a closed-loop circuit cannot be formed). Only when the telescopic rod 3 completely pushes out the door handle, the second elastic piece 31 can tightly abut against the end of the second circuit 41, enabling the second circuit 41 to form a closed-loop circuit with the first circuit 40, and then an electrical signal indicating that the door handle is in the fully extended state can be given to the customer. Therefore, this linear push-out driving device gives signals of the position of the door handle to the customer under different closed-loop circuits, facilitating the customer to perform corresponding operations and greatly improving the customer's usage experience. Moreover, by directly using the rotational motion of the driving component 2 to realize the linear reciprocating movement of the telescopic rod 3, the overall structure is simple, the operation is convenient and fast. While reducing the use of components, it also reduces the manufacturing cost and the noise generated during operation.

[0033] Preferably, two first elastic pieces 30 and two second elastic pieces 31 are provided in this solution to ensure that the elastic pieces can always tightly abut against the corresponding circuits when moving linearly back and forth with the telescopic rod 3, thereby improving the stability when the electrical signal is generated. At the same time, the first elastic pieces 30 and the second elastic pieces 31 in this solution are both made of metal elastic pieces.

[0034] A bent portion 420 is formed at the end of the third circuit 42. The bent portion 420 is located on one side of the end of the second circuit 41 and jointly forms the contact gap 43 with it.

[0035] As Figure 3 shown, in order to ensure that the second elastic piece 31 can be in movable contact with the end of the second circuit 41 or the third circuit 42 when moving linearly back and forth with the telescopic rod 3, a bent portion 420 is formed at the end of the third circuit 42. The bent portion 420 is set at a right angle, so that the connection line between the bent portion 420 and the end of the second circuit 41 is parallel to the direction of the linear reciprocating movement of the telescopic rod 3. Further, it is ensured that when the second elastic piece 31 contacts the bent portion 420, the closed-loop circuit formed with the first circuit 40 gives an electrical signal indicating that the door handle is in the hidden state to the customer, and when the second elastic piece 31 contacts the end of the second circuit 41, the closed-loop circuit formed with the first circuit 40 gives an electrical signal indicating that the door handle is in the fully extended state to the customer.

[0036] The driving component 2 includes: a driving member 20 disposed in the accommodation cavity 12. A driving end of the driving member 20 is coaxially connected with a worm 21; an output helical gear 22 is disposed in the accommodation cavity 12. The output helical gear 22 is movably sleeved on the telescopic rod 3 and is movably meshed with the worm 21.

[0037] As Figure 2 WithFigure 3 As shown, when the driving member 20 drives the worm 21 to rotate, the output bevel gear 22 can drive the telescopic rod 3 to make linear reciprocating movements during the rotation process. Preferably, the telescopic rod 3 in this solution is a lead screw, and a spiral portion 220 is provided inside the output bevel gear 22. The spiral portion 220 is movably sleeved on the lead screw, so that the output bevel gear 22 can be converted into a linear reciprocating movement of the telescopic rod 3 when it makes a rotational motion. This structure simplifies the driving device, reduces the use of parts, avoids frequent subsequent maintenance, and reduces the generation of noise. It should be noted that the working principle of the output bevel gear 22 and the telescopic rod 3 is the same as that of the ball screw, which will not be described in detail here.

[0038] The housing 1 is composed of an upper cover 10 and a lower cover 11 . A first groove 100 is formed in the upper cover 10 , and a second groove 110 is formed in the lower cover 11 . When the upper cover 10 is connected to the lower cover 11 , the first groove 100 and the second groove 110 together form a receiving chamber 12 .

[0039] like Figure 2 and Figure 4 As shown, the housing 1 is composed of an upper cover 10 and a lower cover 11. The accommodating cavity 12 formed by the first groove 100 and the second groove 110 can play a certain limiting and guiding effect on the installation of the driving member 20, the output bevel gear 22 and the telescopic rod 3, and effectively avoids the displacement of the driving member 20 during operation and affects the stability of the output bevel gear 22 and the worm 21 when they are actively engaged, which also provides a guarantee for the smoothness of the door handle during the pushing process.

[0040] The upper cover 10 and the lower cover 11 also form a limiting groove 13 together. The end of the telescopic rod 3 is connected to the limiting block 32. The first spring piece 30 and the second spring piece 31 are both connected to the limiting block 32, and the limiting block 32 movably abuts against the two inner walls of the limiting groove 13.

[0041] like Figure 2 As shown, the limit block 32 is arranged at the left end of the telescopic rod 3, and the limit groove 13 formed by the upper cover 10 and the lower cover 11 is used, so that when the telescopic rod 3 moves back and forth in a straight line under the drive of the output bevel gear 22, the limit block 32 can be movably pressed against the inner walls on both sides of the limit groove 13, that is, one place is the state where the second spring piece 31 is movably pressed against the above-mentioned bending portion 420, and the other place is the state where the second spring piece 31 is movably pressed against the end of the second line 41, which provides a guarantee for the accuracy of the position of the door handle when it is pushed out or retracted.

[0042] The upper cover 10 and the lower cover 11 are both provided with connection holes 14 at their peripheries. Buffer pads 140 are provided in the connection holes 14 to mitigate vibrations generated when the driving device is in operation.

[0043] like Figure 2 andFigure 4 As shown, the connecting hole 14 allows a bolt to pass through. When the upper cover 10 is pressed against the lower cover 11, the two can be connected together by bolts. This method is simple to operate, convenient for installation and disassembly, and also provides convenience for subsequent maintenance and replacement. During the installation process, the buffer gasket 140 can achieve a good buffering effect and is also beneficial to reducing the vibration generated during the operation of the driving member 20, the output bevel gear 22, and the telescopic rod 3.

[0044] Preferably, as Figure 4 shown, a sealing ring 15 sleeved on the end of the telescopic rod 3 is also provided between the upper cover 10 and the lower cover 11. The sealing ring 15 can effectively prevent external dust and water stains from entering the housing 1, thereby effectively extending the service life of the driving device.

[0045] Preferably, a PCB board 16 and a waterproof ring 17 are also provided on the housing 1. The PCB board 16 can be connected to the first elastic piece 30, the second elastic piece 31, the driving member 20, and an external counterpart to achieve the effect of passing an electric signal; and the waterproof ring 17 is sleeved on the PCB board 16, playing a role in sealing, waterproofing, and fixing the PCB board 16.

[0046] In the present solution, a PIN - angle connection plug 18 is provided on the housing 1. When the PIN - angle connection plug 18 is connected to an external counterpart (not shown in the figure), the whole vehicle issues an electric signal command, and the driving member 20 starts to work. The driving end of the driving member 20 drives the worm 21 to start rotating, thereby driving the output bevel gear 22 to rotate. Through the principle of the ball - screw structure, the telescopic rod 3 makes a linear motion, and then the door handle is extended. When it reaches the limit position, the PCB board 16 receives the signal and then feeds it back to the whole vehicle, and the whole vehicle gives another signal, and the driving member 20 stops moving. On the contrary, when the motor rotates in reverse, the telescopic rod 3 retracts.

[0047] It should be noted that the driving member 20 in the present solution can be replaced by other driving devices such as a stepper motor or a servo motor.

[0048] It should be noted that all the directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indicators will also change accordingly.

[0049] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise specifically defined.

[0050] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A linear ejection drive device, characterized in that: include: A housing having a receiving cavity formed therein; A driving assembly and a telescopic rod are arranged in the accommodating cavity, and an output end of the driving assembly is movably sleeved on the telescopic rod, so that when the driving assembly performs a rotational motion, the telescopic rod can be driven to perform a linear reciprocating motion, so as to push out the door handle; The first circuit, the second circuit and the third circuit are arranged side by side in the accommodating cavity, and the same ends of the first circuit, the second circuit and the third circuit are all connected to an external counterpart, wherein a contact gap is formed between the second circuit and the third circuit at the ends close to the telescopic rod, and the telescopic rod is provided with a first elastic sheet and a second elastic sheet connected to each other, the first elastic sheet movably presses against the first circuit, and the second elastic sheet movably presses against the second circuit or the third circuit; When the first elastic piece moves against the first circuit and the second elastic piece moves against the third circuit, the first circuit and the third circuit form a closed loop circuit to generate an electrical signal indicating that the door handle is not pushed out; The second elastic sheet can cross the contact gap and press against the second circuit when the telescopic rod moves linearly, so that the first circuit and the second circuit form a closed loop circuit to generate an electrical signal indicating that the door handle is in the pushed-out state.

2. A linear ejection drive device according to claim 1, characterized in that: A bending portion is formed at the end of the third line. The bending portion is located at one side of the end of the second line and forms the contact gap together with the bending portion.

3. A linear ejection drive device according to claim 1, characterized in that: The drive assembly comprises: A driving member is disposed in the accommodating cavity, wherein a driving end of the driving member is coaxially connected with a worm; An output helical gear is arranged in the accommodating cavity. The output helical gear is movably sleeved on the telescopic rod and movably meshed with the worm.

4. A linear ejection drive device according to claim 3, characterized in that: The telescopic rod is a lead screw, a spiral portion is arranged inside the output bevel gear, and the spiral portion is movably sleeved on the lead screw.

5. A linear ejection drive device according to claim 3, characterized in that: The shell is composed of an upper cover and a lower cover. A first groove is formed in the upper cover, and a second groove is formed in the lower cover. When the upper cover is connected to the lower cover, the first groove and the second groove together form the accommodating cavity.

6. A linear ejection drive device according to claim 5, characterized in that: The upper cover and the lower cover also form a limiting groove together, the end of the telescopic rod is connected to a limiting block, the first elastic sheet and the second elastic sheet are both connected to the limiting block, and the limiting block movably abuts against two inner walls of the limiting groove.

7. A linear ejection drive device according to claim 5, characterized in that: The upper cover and the lower cover are both provided with connection holes at their peripheries, and buffer pads are provided in the connection holes to mitigate vibrations generated when the driving device is in operation.

8. A linear ejection drive device according to claim 5, characterized in that: A sealing ring is also provided between the upper cover and the lower cover and is sleeved on the end of the telescopic rod.

9. A linear ejection drive device according to claim 6, characterized in that: A PCB board and a waterproof ring are also provided on the housing. The PCB board can be connected to the first elastic sheet and the second elastic sheet. The waterproof ring is sleeved on the PCB board.

10. A linear ejection drive device according to claim 1, characterized in that: The housing is provided with a PIN angle plug, and the PIN angle plug is connected to an external counterpart.

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