Automatic parking switch of passenger car

Abstract

The invention relates to the technical field of parking switch equipment, in particular to a passenger car automatic parking switch which comprises a switch body and further comprises a secondary clamping column arranged in the switch body, a main clamping column is slidably connected to the position, corresponding to the secondary clamping column, of the upper portion of the switch body, and a main button is connected to the upper portion of the main clamping column through a main pressing column. In the using process, in the upward moving process of a sliding sleeve, a bag body is gradually extruded, and extrusion force enables gas in the bag body to enter a piston cylinder through a communicating pipe to extrude a sliding plate, so that the sliding plate drives a clamping block to move in the direction away from an extrusion circular truncated cone; the extrusion force enables the clamping block to cancel the limiting state of the extrusion circular truncated cone, and then the stability of the parking microswitch after the parking function is driven by pressing is guaranteed through alternate use of the two kinds of limiting.

Description

Technical Field

[0001] The present invention relates to the technical field of parking switch equipment, in particular to an automatic parking switch for a passenger car. Background Art

[0002] With technological advancements, electronic parking systems are increasingly being used in cars. They offer a sense of intelligence, safety, and convenience, and will be the future trend in vehicle switches. Besides saving space and offering a sleek appearance, they are also user-friendly for novice car owners. Because electronic parking brakes can be operated with one button, they avoid the issues of traditional parking brakes that can cause the car to slip. This makes them much safer.

[0003] Currently, mainstream electronic parking brakes utilize integrated calipers, integrating the motor into the caliper and eliminating the latch mechanism. Hydraulic braking is used for normal driving, while electric braking is used for parking. This approach requires electronic circuitry to control the rear wheel braking system, making it relatively complex. When the driver presses a button, the signal propagates through a series of channels, ultimately causing the rear calipers to lock the wheels.

[0004] The automatic parking switch is primarily installed on the right side of the driver's seat, near the armrest. It replaces the existing parking brake and is typically installed on high-end vehicles, saving significant interior space. However, existing automatic parking switches are insensitive during activation, making it difficult to clearly sense the operating status. Furthermore, the button is loose, making it prone to slipping or failure to brake during emergency braking, compromising driving safety. Furthermore, automatic parking switches are typically electronic, unlike traditional parking brakes that require physical activation. Sometimes, drivers may accidentally activate the switch, preventing the vehicle from starting properly or being unable to engage a gear when parking. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatic parking switch for a passenger car, which can effectively solve the problem that the automatic parking switch in the prior art is prone to accidental touch.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an automatic parking switch for a passenger vehicle, comprising a switch body and a secondary engaging post disposed within the switch body. A primary engaging post is slidably connected to an upper portion of the switch body at a position corresponding to the secondary engaging post. A primary button is connected to an upper portion of the primary engaging post via a primary pressing post. A parking microswitch is disposed within the switch body at a position corresponding to a lower portion of the secondary engaging post. The primary and secondary engaging posts are connected via an auxiliary assembly. In which, the auxiliary component includes a secondary pressing column connected to the lower part of the main locking column, the lower part of the secondary pressing column extends inside the secondary locking column to a position close to the parking microswitch and is connected thereto, the parking microswitch and the secondary locking column are elastically slidably connected, the annular outer surface of the secondary locking column is slidably connected with a sliding sleeve, and a limiting groove is provided on the upper part of the inner surface of the sliding sleeve, and a semi-elliptical groove is provided on the annular inner surface of the secondary locking column at a position corresponding to the limiting groove, and a ball is rolled inside the semi-elliptical groove, and a clamping groove is provided on the annular outer surface of the main locking column at a position corresponding to the ball.

[0007] Furthermore, the cross section of the slot is trapezoidal.

[0008] Furthermore, the auxiliary component also includes a movable groove opened inside the main locking column, the lower end of the main pressing column extends to the inside of the movable groove and is connected to an extrusion plate, the extrusion plate and the movable groove are elastically slidably connected, and the lower part of the annular inner side surface of the extrusion plate is provided with evenly distributed connecting holes in a ring shape, and the connecting holes extend away from one end of the movable groove to a position close to the sliding sleeve.

[0009] Furthermore, a limiting plate is connected to the annular outer side surface of the main pressing column near the upper portion of the main engaging column.

[0010] Furthermore, the auxiliary component also includes an extrusion cone connected to the middle part of the annular outer surface of the secondary pressing column, and a mounting groove is provided inside the secondary locking column at a position corresponding to the extrusion cone. Two piston cylinders are symmetrically provided inside the secondary locking column at positions corresponding to the extrusion cone. A piston rod is elastically and slidably connected inside the piston cylinder, and the piston rod extends from one end of the piston cylinder away from the piston cylinder to a position close to the extrusion cone and is connected to a clamping block.

[0011] Furthermore, the top surface of the clamping block is in an inclined shape, ensuring that the extrusion force of the extrusion cone on the clamping block can effectively cause the clamping block to move.

[0012] Furthermore, a sac is connected to the side of the secondary locking column at a position corresponding to the piston cylinder, a sliding plate is connected to the end face of the piston rod away from the piston cylinder, the sliding plate and the piston cylinder are elastically slidably connected, and a connecting tube is connected to the upper part of the annular side of the piston cylinder corresponding to the sac, and the connecting tube extends from one end of the sac to a position close to the sliding plate and the piston rod.

[0013] Furthermore, a buffer airbag is provided inside the secondary engaging column at a position corresponding to the communicating tube, and the communicating tube and the buffer airbag are in communication with each other.

[0014] Compared with the known prior art, the technical solution provided by the present invention is that after the pressing work of the main button is canceled, under the action of the elastic force that restores the elastic deformation between the extrusion plate and the movable groove, the extrusion plate moves upward inside the movable groove, and the gas inside the switch body returns to the inside of the movable groove through the connecting hole. At this time, under the action of the air pressure difference, the sliding sleeve moves upward on the annular outer surface of the secondary engaging column until, in the process of the movement of the sliding sleeve, the ball is gradually squeezed. The squeezing force causes the ball to move in the direction close to the engaging groove and gradually enter the interior of the engaging groove. At the same time, the interior of the sliding sleeve presses the ball tightly. At this time, the engaging work of the main engaging column and the secondary engaging column is completed, thereby ensuring the stability of the main engaging column and the secondary engaging column after connection. At the same time, in the process of the sliding sleeve moving upward, the sac is gradually squeezed. The squeezing force causes the gas inside the sac to enter the interior of the piston cylinder through the connecting tube to squeeze the sliding plate, causing it to drive the block to move away from the extrusion table. The squeezing force causes the block to cancel the restriction on the extrusion table, and then the two restrictions are used alternately to ensure the stability of the parking function after the parking micro switch is pressed.

[0015] At the same time, when the user accidentally touches the main press column, due to the elastic connection between the extrusion plate at the bottom of the main press column and the movable groove, the force of the accidental touch is relatively small, and therefore will not trigger the closing or releasing of the switch. Furthermore, when the main press column is pressed by a heavy object, the main press column is pressed for a long time, and the capsule has enough time to return to the position on the extrusion table, that is, to engage the extrusion table, thereby avoiding the problem of accidental touch from many aspects and ensuring the stability of the switch during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0017] Figure 1 It is a complete structural diagram of the present invention; Figure 2 This is a structural schematic diagram of the parking mechanism of the present invention in an initial state; Figure 3 This is a structural schematic diagram of the parking mechanism of the present invention in the connection process; Figure 4 This is a structural schematic diagram of the parking mechanism of the present invention in a parking state; Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 6 For the present invention Figure 3 Enlarged view of point B in the middle; Figure 7 For the present invention Figure 4 Enlarged view of point C in the middle; Figure 8 For the present invention Figure 3 Enlarged view of point D in the middle; Figure 9 It is a structural schematic diagram of the sliding sleeve of the present invention.

[0018] The numbers in the figure represent: 1. switch body; 2. main button; 3. main pressing column; 4. main engaging column; 5. secondary engaging column; 6. secondary pressing column; 7. parking micro switch; 8. sliding sleeve; 9. limiting groove; 10. semi-elliptical groove; 11. ball; 12. engaging groove; 13. movable groove; 14. extrusion plate; 15. limiting plate; 16. connecting hole; 17. mounting groove; 18. extrusion cone; 20. piston cylinder; 21. piston rod; 22. block; 23. sliding plate; 24. bladder body; 25. connecting pipe; 26. cushioning airbag. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] The present invention will be further described below with reference to the embodiments.

[0021] Example: Refer to Figures 1 to 9 The automatic parking switch for a passenger car includes a switch body 1 and a secondary engaging column 5 disposed inside the switch body 1. A main engaging column 4 is slidably connected to the upper portion of the switch body 1 corresponding to the position of the secondary engaging column 5. The upper portion of the main engaging column 4 is connected to the main button 2 via a main pressing column 3. A parking microswitch 7 is provided inside the switch body 1 at a position corresponding to the lower portion of the secondary engaging column 5. The main engaging column 4 and the secondary engaging column 5 are connected by an auxiliary component. Among them, the auxiliary component includes a secondary pressing column 6 connected to the lower part of the main locking column 4, and the lower part of the secondary pressing column 6 extends inside the secondary locking column 5 to a position close to the parking microswitch 7 and is connected to it. The parking microswitch 7 and the secondary locking column 5 are elastically slidably connected, and the annular outer surface of the secondary locking column 5 is slidably connected with a sliding sleeve 8. A limiting groove 9 is provided on the upper part of the inner surface of the sliding sleeve 8. A semi-elliptical groove 10 is provided on the annular inner surface of the secondary locking column 5 at a position corresponding to the limiting groove 9. A ball 11 is rolled inside the semi-elliptical groove 10, and a card groove 12 is provided on the annular outer surface of the main locking column 4 at a position corresponding to the ball 11.

[0022] When the parking switch is needed, the user presses the main button 2. Since the limit groove 9 and the ball 11 are in non-corresponding positions in the initial state, Figure 5 As shown, the main engaging column 4 is blocked by the ball 11 and cannot move downward normally. The main button 2 squeezes the movable groove 13 through the main pressing column 3. The squeezing force causes the squeezing plate 14 to overcome the elastic force of the elastic connection with the movable groove 13 and move downward inside the movable groove 13. During the movement of the squeezing plate 14, it squeezes the gas inside the movable groove 13. The squeezing force causes the gas inside the movable groove 13 to enter the cavity inside the switch body 1 through the connecting hole 16. As the amount of gas entering the cavity inside the switch body 1 increases, the squeezing force of the gas causes the sliding sleeve 8 to move downward on the outer surface of the secondary engaging column 5 until the limiting groove 9 and the ball 11 are in corresponding positions, as shown in FIG. Figure 6 As shown, at this time, the user's pressing force causes the primary locking post 4 to drive the secondary pressing post 6 to overcome the elastic force between it and the secondary locking post 5 and move downward. During the downward movement of the primary locking post 4, the primary locking post 4 squeezes the ball 11, and the squeezing force causes the ball 11 to move toward the limit groove 9 until the ball 11 is completely inside the semi-elliptical groove 10. At this time, the blocking force of the ball 11 on the primary locking post 4 disappears, and the primary locking post 4 can move downward until the primary locking post 4 and the secondary locking post 5 contact each other. At this time, the position of the ball 11 corresponds to the position of the locking groove 12. At the same time, during the downward movement of the secondary pressing post 6, it gradually squeezes the parking micro switch 7, triggering the parking micro switch 7 to activate the parking brake function. This operation is the input of an electronic signal, which is a conventional technical means in the prior art and will not be described here. When the user feels that the primary locking post 4 is pressed tightly against the primary button 2, he can cancel the pressing operation of the primary button 2.

[0023] The auxiliary component also includes a movable groove 13 opened inside the main locking column 4. The lower end of the main pressing column 3 extends to the inside of the movable groove 13 and is connected to the extrusion plate 14. The extrusion plate 14 and the movable groove 13 are elastically slidably connected. The lower part of the annular inner side surface of the extrusion plate 14 is annularly provided with evenly distributed connecting holes 16. The connecting holes 16 extend from one end away from the movable groove 13 to a position close to the sliding sleeve 8.

[0024] It is worth noting that when the pressing operation on the main button 2 is canceled, under the action of the elastic force that restores the elastic deformation between the extrusion plate 14 and the movable groove 13, the extrusion plate 14 moves upward inside the movable groove 13, and the gas inside the switch body 1 returns to the inside of the movable groove 13 through the connecting hole 16. At this time, under the action of the air pressure difference, the sliding sleeve 8 moves upward on the annular outer surface of the secondary engaging column 5 until, in the process of the movement of the sliding sleeve 8, the ball 11 is gradually squeezed. The squeezing force causes the ball 11 to move toward the direction close to the engaging groove 12 and gradually enter the inside of the engaging groove 12. At the same time, the inside of the sliding sleeve 8 presses the ball 11 tightly. At this time, the engaging operation of the main engaging column 4 and the secondary engaging column 5 is completed, thereby ensuring the stability of the main engaging column 4 and the secondary engaging column 5 after connection.

[0025] The auxiliary component also includes an extrusion platform 18 connected to the middle part of the annular outer surface of the secondary pressing column 6. A mounting groove 17 is provided inside the secondary locking column 5 at a position corresponding to the extrusion platform 18. Two piston cylinders 20 are symmetrically provided inside the secondary locking column 5 at positions corresponding to the extrusion platform 18. A piston rod 21 is elastically and slidably connected inside the piston cylinder 20. The piston rod 21 extends from one end of the piston cylinder 20 to a position close to the extrusion platform 18 and is connected to a clamping block 22.

[0026] The side of the secondary locking column 5 is connected to a sac 24 at a position corresponding to the piston cylinder 20, and the end face of the piston rod 21 away from the piston cylinder 20 is connected to a sliding plate 23. The sliding plate 23 and the piston cylinder 20 are elastically slidably connected. The upper part of the annular side of the sac 24 corresponding to the piston cylinder 20 is connected to a connecting tube 25. The end of the connecting tube 25 away from the sac 24 extends to a position close to the sliding plate 23 and the piston rod 21.

[0027] Furthermore, in the process of the limit groove 9 moving downward, since in the initial state, the bottom of the sliding sleeve 8 is in a state of squeezing the capsule 24, at this time, the sliding sleeve 8 cancels the squeezing state of the capsule 24, and the gas between the sliding plate 23 and the piston rod 21 returns to the inside of the capsule 24 through the connecting pipe 25. At this time, the squeezing force of the gas on the sliding plate 23 disappears, and under the elastic force of the elastic movement between the piston rod 21 and the piston cylinder 20, the piston rod 21 drives the block 22 to move in the direction close to the secondary pressing column 6. It is worth noting that in the sliding sleeve 8 When part of the total stroke is completed, the extrusion state of the capsule 24 is cancelled, that is, during the movement of the sliding sleeve 8, the piston rod 21 drives the block 22 to move to a position where it hinders the extrusion table 18. At this time, during the downward movement of the extrusion table 18, the extrusion table 18 gradually squeezes the inclined surface of the block 22. The extrusion force causes the block 22 and the piston rod 21 to overcome the elastic force between them and the piston cylinder 20 and move in the direction away from the extrusion table 18 until the extrusion table 18 is at the lower part of the block 22. At this time, the extrusion force of the extrusion table 18 on the block 22 disappears. Under the elastic force of the piston cylinder 20 to restore its elastic deformation, the block 22 on the extrusion table The stage 18 acts as a barrier to prevent the main engaging column 4 from moving upward when the user cancels the pressure on the main pressing column 3, thereby further ensuring its stability during use. Furthermore, in the process of the sliding sleeve 8 moving upward, the capsule 24 is gradually squeezed. The squeezing force causes the gas inside the capsule 24 to enter the interior of the piston cylinder 20 through the connecting tube 25 to squeeze the sliding plate 23, thereby driving the block 22 to move away from the squeezing stage 18. The squeezing force causes the block 22 to cancel the restriction on the squeezing stage 18, and then the two restrictions are used alternately to ensure the stability of the parking micro switch 7 after the parking function is driven.

[0028] Reference Figure 8 A buffer air bag 26 is provided inside the secondary engaging column 5 at a position corresponding to the communicating tube 25 , and the communicating tube 25 and the buffer air bag 26 are in communication with each other.

[0029] Furthermore, when the user needs to cancel the parking function, by pressing the main pressing column 3, the sliding sleeve 8 moves downward to cancel the restriction state of the ball 11. Under the elastic force of the elastic deformation between the secondary pressing column 6 and the secondary engaging column 5, the main engaging column 4 gradually returns to the initial state, and the parking state is canceled. It is worth noting that since a buffer airbag 26 is provided between the sac body 24 and the piston cylinder 20, in the process of the sac body 24 restoring the elastic deformation, the elastic force of the buffer airbag 26 restoring the elastic deformation is less than the elastic deformation force of the elastic part between the piston rod 21 and the piston cylinder 20. The magnitude of the elastic force of the elastic part and the buffer airbag 26 can be controlled by their materials, sizes, etc. This is a conventional technical means in the prior art, so it will not be elaborated here. The gas inside the buffer airbag 26 will first enter the interior of the buffer airbag 26, and will only enter the local part of the piston cylinder 20 after the buffer airbag 26 has completed its expansion. Then, the card block 22 can be controlled by controlling the time of pressing the main pressing column 3. When the vehicle is in the parking state, the user only needs to press the main pressing column 3 for a long time, that is, stop when the main pressing column 3 is moved. When the vehicle is in the parking state, the user only needs to press the main pressing column 3 for a short time, that is, cancel the pressing immediately when the main pressing column 3 is moved. It is worth noting that through the above arrangement, when the user accidentally touches the main pressing column 3, due to the elastic connection between the extrusion plate 14 at the lower part of the main pressing column 3 and the movable groove 13, the force of the accidental touch is relatively small, and it will not trigger the closing or releasing of the closed state of the switch. Further, when the main pressing column 3 is pressed by a heavy object, the main pressing column 3 is pressed for a long time, and the capsule 24 has enough time to return to the position on the extrusion cone 18, that is, to engage the extrusion cone 18, thereby avoiding the problem of accidental touch in many aspects and ensuring the stability of the switch during use.

[0030] Reference Figure 9 The cross section of the slot 12 is trapezoidal, which ensures that the slot 12 has an extrusion effect on the ball 11 during separation.

[0031] Reference Figure 3 The annular outer side surface of the main pressing column 3 is connected to a limiting plate 15 near the upper part of the main engaging column 4 to limit the moving distance of the main pressing column 3.

[0032] Reference Figure 2 The top surface of the block 22 is in an inclined shape, ensuring that the extrusion force of the extrusion table 18 on the block 22 can well cause the block 22 to move.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A passenger car automatic parking switch, comprising a switch body (1), characterized in that: Also includes: A secondary engaging column (5) is provided inside the switch body (1); the upper portion of the switch body (1) is slidably connected to a main engaging column (4) at a position corresponding to the secondary engaging column (5); the upper portion of the main engaging column (4) is connected to a main button (2) via a main pressing column (3); a parking micro switch (7) is provided inside the switch body (1) at a position corresponding to the lower portion of the secondary engaging column (5); the main engaging column (4) and the secondary engaging column (5) are connected via an auxiliary component; The auxiliary component includes a secondary pressing column (6) connected to the lower part of the main engaging column (4), the lower part of the secondary pressing column (6) extends inside the secondary engaging column (5) to a position close to the parking micro switch (7) and is connected thereto, the parking micro switch (7) and the secondary engaging column (5) are elastically slidably connected, the annular outer surface of the secondary engaging column (5) is slidably connected to a sliding sleeve (8), the upper part of the inner surface of the sliding sleeve (8) is provided with a limiting groove (9), the annular inner surface of the secondary engaging column (5) is provided with a semi-elliptical groove (10) at a position corresponding to the limiting groove (9), the interior of the semi-elliptical groove (10) is provided with a rolling ball (11), and the annular outer surface of the main engaging column (4) is provided with a clamping groove (12) at a position corresponding to the ball (11).

2. The automatic parking switch for a passenger vehicle according to claim 1, characterized in that: The cross section of the clamping slot (12) is trapezoidal in shape.

3. The automatic parking switch for a passenger vehicle according to claim 1, characterized in that: The auxiliary component further comprises a movable groove (13) provided inside the main engaging column (4); the lower end of the main pressing column (3) extends into the interior of the movable groove (13) and is connected to an extrusion plate (14); the extrusion plate (14) and the movable groove (13) are elastically slidably connected; the lower portion of the annular inner side surface of the extrusion plate (14) is provided with evenly distributed communicating holes (16) in the form of an annular ring; the communicating holes (16) extend from one end away from the movable groove (13) to a position close to the sliding sleeve (8).

4. The automatic parking switch for a passenger vehicle according to claim 3, characterized in that: The annular outer side surface of the main pressing column (3) is connected to a limiting plate (15) near the upper portion of the main engaging column (4).

5. The automatic parking switch for a passenger vehicle according to claim 1, characterized in that: The auxiliary component also includes an extrusion cone (18) connected to the middle of the annular outer side surface of the secondary pressing column (6), a mounting groove (17) is provided in the interior of the secondary engaging column (5) at a position corresponding to the extrusion cone (18), and two piston cylinders (20) are symmetrically provided in the interior of the secondary engaging column (5) at positions corresponding to the extrusion cone (18), a piston rod (21) is elastically and slidably connected to the interior of the piston cylinder (20), and the piston rod (21) extends from one end of the piston cylinder (20) to a position close to the extrusion cone (18) and is connected to a clamping block (22).

6. The automatic parking switch for a passenger vehicle according to claim 5, characterized in that: The top surface of the clamping block (22) is in the shape of an inclined plane.

7. The automatic parking switch for a passenger vehicle according to claim 5, characterized in that: The side of the secondary engaging column (5) is connected to a capsule (24) at a position corresponding to the piston cylinder (20), the end surface of the piston rod (21) away from the piston cylinder (20) is connected to a sliding plate (23), the sliding plate (23) and the piston cylinder (20) are elastically slidably connected, and the upper part of the annular side surface of the capsule (24) corresponding to the piston cylinder (20) is connected to a connecting tube (25), and one end of the connecting tube (25) away from the capsule (24) extends to a position close to the position between the sliding plate (23) and the piston rod (21).

8. The automatic parking switch for a passenger vehicle according to claim 7, characterized in that: A buffer air bag (26) is provided inside the secondary engaging column (5) at a position corresponding to the communicating tube (25), and the communicating tube (25) and the buffer air bag (26) are in communication with each other.

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