Height adjusting device of seat cushion, seat and vehicle

Abstract

The utility model relates to a height adjusting device of a seat cushion, a seat and a vehicle, and the height adjusting device comprises an air bag used for supporting the seat cushion; the switch comprises an inflation contact for controlling the air bag to be inflated and a deflation contact for controlling the air bag to be deflated; the valve body is arranged close to the switch in a swinging manner and is provided with a first end for triggering the inflation contact and a second end for triggering the inflation contact; the driving part comprises a driving mechanism, a driving mechanism and a transmission rope, the transmission rope is connected between the driving mechanism and the valve body and used for transmitting driving force, the transmission rope is configured to have a tensioning state and a releasing state under driving of the driving mechanism, and in the releasing state, the valve body is driven to swing in the first direction, so that the first end triggers the inflation contact, and the second end triggers the inflation contact; the height of the seat cushion is increased; and in the tensioning state, the valve body is driven to swing in the second direction deviating from the first direction, so that the second end makes contact with the gas discharging contact, and the height of the seat cushion is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle accessories, and in particular to a height adjustment device for a seat cushion, a seat and a vehicle. Background Art

[0002] During the driving process, in order to meet the riding comfort and seat height requirements of the driver and passengers, it is necessary to set height and shock absorbing devices on the vehicle seats, for example, through pneumatic means, that is, inflating and deflating the airbag to achieve shock absorption and height adjustment at the same time. With the development of society, the degree of digitalization of medium and heavy truck models continues to improve. Truck driver seats are frequently used components. The common design scheme is to use a manual switch to control the valve of the air valve. The driver hopes to adjust the height of the seat cushion in a more intelligent and convenient way than manual control, so as to improve driving comfort. Utility Model Content

[0003] A first object of the present disclosure is to provide a height adjustment device for a seat cushion, which can at least partially solve the technical problems existing in the related art.

[0004] A second object of the present disclosure is to provide a seat provided with the seat cushion height adjustment device provided by the present disclosure.

[0005] A third object of the present disclosure is to provide a vehicle comprising the seat provided by the present disclosure.

[0006] In order to achieve the above object, the present disclosure provides a seat cushion height adjustment device, comprising:

[0007] air bags, which support the seat cushions;

[0008] A switch, comprising an inflation contact for controlling inflation of the airbag and a deflation contact for controlling deflation of the airbag;

[0009] a valve body, swingably disposed near the switch, and having a first end for triggering the inflation contact and a second end for triggering the deflation contact; and

[0010] The driving part includes a driving mechanism, the driving mechanism and a transmission rope, the transmission rope is connected between the driving mechanism and the valve body for transmitting the driving force, and the transmission rope is configured to have a tensioned state and a released state under the drive of the driving mechanism.

[0011] In the release state, the valve body is driven to swing toward a first direction, so that the first end triggers the inflation contact to increase the height of the seat cushion;

[0012] In the tensioned state, the valve body is driven to swing toward a second direction away from the first direction, so that the second end triggers the deflation contact to reduce the height of the seat cushion.

[0013] Optionally, the driving mechanism is a linear driving mechanism.

[0014] Optionally, the driving mechanism comprises:

[0015] A lead screw motor, used to output driving force;

[0016] A screw seat having a threaded hole; and

[0017] A lead screw rod has an external thread on its outer wall, one end of the lead screw rod is threaded into the threaded hole, and the other end is connected to the transmission rope, and the lead screw rod is configured to be able to reciprocate axially under the drive of the lead screw motor so that the transmission rope has a tensioned state and a released state.

[0018] Optionally, the driving part further includes a pull ring, which includes a ring portion and a handle portion connected to the ring portion at one end, the other end of the handle portion is connected to the transmission rope, and the ring portion is connected to the first end or the second end.

[0019] Optionally, a control button electrically connected to the driving mechanism is further included, configured to control the rotation direction of the lead screw motor to drive the lead screw.

[0020] A second aspect of the present disclosure provides a seat, comprising a seat cushion, a cushion frame for supporting the seat cushion, and a height adjustment device for the seat cushion, wherein the height adjustment device for the seat cushion is the height adjustment device for the seat cushion described above.

[0021] Optionally, the airbag is detachably accommodated inside the seat cushion frame.

[0022] Optionally, the seat further comprises a mounting shaft with one end fixed to the vehicle body, and the valve body is swingably mounted on the other end of the mounting shaft.

[0023] Optionally, a through hole is opened at the center position of the valve body, and the mounting shaft includes a small neck and a large neck formed at both ends of the small neck, wherein the outer diameter of the small neck is not larger than the inner diameter of the through hole so as to pass through the through hole, and the outer diameter of the large neck is larger than the inner diameter of the through hole.

[0024] According to a third aspect of the present disclosure, a vehicle is provided, comprising a vehicle body and the seat described above.

[0025] Through the above technical solution, a height adjustment device is arranged at the bottom of the seat cushion, and the transmission rope is driven by the driving mechanism to switch between the tensioned state and the released state to control the valve body to swing in different directions, so that the two ends of the valve body can trigger the inflation contact and the deflation contact respectively, so that the airbag can switch between the inflation state and the deflated state, thereby raising or lowering the height of the seat cushion, making the control process of the seat cushion height adjustment more intelligent and efficient, and greatly improving the driving and riding comfort.

[0026] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0028] Figure 1 is a partial structural schematic diagram of a seat provided in an exemplary embodiment of the present disclosure;

[0029] Figure 2 is a partial structural schematic diagram of a seat cushion height adjustment device provided by an exemplary embodiment of the present disclosure;

[0030] Figure 3 yes Figure 2 A magnified view of part A;

[0031] Figure 4 It is a partial structural schematic diagram of a seat cushion height adjustment device provided in another exemplary embodiment of the present disclosure.

[0032] Description of Reference Numerals

[0033] 10-seat cushion frame; 20-airbag; 30-switch; 31-inflation contact; 32-deflation contact; 40-valve body; 41-first end; 42-second end; 43-connecting ring; 44-through hole; 50-driving part; 51-driving mechanism; 51a screw seat; 51b-screw screw; 52-transmission rope; 53-pull ring; 53a-ring part; 53b-handle part; 60-control button; 71-first air supply pipe; 72-second air supply pipe; 80-control valve; 90-air source body. DETAILED DESCRIPTION

[0034] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0035] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" are used in reference to the outline of the corresponding parts; directional words such as "upper", "lower", "top" and "bottom" are defined according to the usage habits of the height adjustment device provided by the present disclosure, and "upper", "lower", "top" and "bottom" can be the longitudinal directions of the vehicle; in addition, such as Figure 3 As shown, the direction indicated by the S arrow is the first direction, and the reverse direction is the second direction. The terms used in this disclosure, such as "first" and "second", are used to distinguish one element from another element and do not have order and importance. In addition, when the following description refers to the drawings, the same reference numerals in different drawings represent the same or similar elements.

[0036] Reference Figure 1-Figure 3 The present disclosure provides a height adjustment device for a seat cushion, which may include an airbag 20, a switch 30, a valve body 40, and a drive unit 50. The airbag 20 may be used to support the seat cushion to achieve shock absorption of the seat cushion, thereby improving the comfort of the seat cushion. The switch 30 may include an inflation contact 31 for controlling the inflation of the airbag 20 and a deflation contact 32 for controlling the deflation of the airbag 20. When the inflation contact 31 is triggered, gas is filled into the airbag 20 to increase the volume of the airbag 20, so that the airbag 20 can push up the seat cushion to increase the height of the seat cushion; when the deflation contact 32 is triggered, gas is discharged from the airbag 20 to reduce the volume of the airbag 20, thereby canceling the pushing of the seat cushion to reduce the height of the seat cushion. The valve body 40 is swingably arranged near the switch 30. The valve body 40 may include a first end 41 and a second end 42 arranged at two ends in the height direction thereof. The first end 41 may be used to trigger the inflation contact 31, and the second end 42 may be used to trigger the deflation contact 32. This enables only one valve body 40 to trigger two contacts with different functions to achieve the raising and lowering of the seat height, reduces the use of components and space occupation, and complies with the principle of lightweight design. In addition, the valve body 40 triggers the inflation contact 31 and the deflation contact 32 in two directions that deviate from each other, thereby avoiding the occurrence of false touches, making the height adjustment process of the seat cushion by the height adjustment device more accurate and reliable. The driving part 50 may include a driving mechanism 51 and a transmission rope 52. The driving mechanism 51 may be used to output driving force. The transmission rope 52 may be connected between the driving mechanism 51 and the valve body 40 to transmit driving force. The transmission rope 52 is configured to have a tensioned state and a released state under the drive of the driving mechanism 51. When switching to the released state, the transmission rope 52 may drive the valve body 40 to swing in a first direction, so that the first end 41 triggers the inflation contact 31 to increase the height of the seat cushion. When switching to the tensioned state, the transmission rope 52 may drive the valve body 40 to swing in a second direction away from the first direction, so that the second end 42 triggers the deflation contact 32 to lower the height of the seat cushion.

[0037] Specifically, refer to Figure 1-Figure 3 In the embodiment provided by the present disclosure, the transmission rope 52 can be tightened in the direction away from the valve body 40 during the process of switching to the tensioned state, and drive the first end 41 to move away from the inflation contact 31, thereby driving the valve body 40 to swing in the second direction, for example, driving the valve body 40 to swing to a state gradually tilted from top to bottom close to the switch 30 body, so that the second end 42 can move in the direction close to the deflation contact 32 and contact the deflation contact 32, thereby triggering the deflation contact 32 to release the gas in the airbag 20, thereby lowering the seat cushion height; the transmission rope 52 can be released in the direction close to the valve body 40 during the process of switching to the released state, and the tension on the first end 41 is released, thereby driving the valve body 40 to swing in the first direction, for example, driving the valve body 40 to swing to a state gradually tilted from bottom to top close to the switch 30 body, so that the first end 41 can contact the inflation contact 31, thereby triggering the inflation contact 31 to fill the gas into the airbag 20, thereby raising the seat cushion height. By tightening and releasing the transmission rope 52 to drive the valve body 40 to swing in different directions, not only can the reliability of driving the valve body 40 and the switching efficiency of the airbag 20 in the inflated state and the deflated state be ensured, but also the space occupancy rate of the height adjustment device can be reduced.

[0038] In the embodiments provided in the present disclosure, reference is made to Figure 1-Figure 4The vehicle mentioned below may also include an air source assembly, which may include an air source body 90, an air supply pipe, and a control valve 80, wherein the air source body 90 may be a brake air source for the entire vehicle, the air supply pipe may include a first air supply pipe 71 and a second air supply pipe 72, and the control valve 80 may be a three-way valve. One end of the first air supply pipe 71 may be connected to the air source body 90, the other end of the first air supply pipe 71 may be connected to the A port of the three-way valve, one end of the second air supply pipe 72 may be connected to the airbag 20, the other end of the second air supply pipe 72 may be connected to the B port of the three-way valve, and the C port of the three-way valve may be connected to the outside atmosphere. When the inflation contact 31 is triggered, the A port and the B port of the three-way valve are opened, and the C port of the three-way valve is closed, so that the first air supply pipe 71 and the second air supply pipe 72 are connected, so that the gas can be transported to the airbag 20 through the gas source body 90, the first air supply pipe 71, the control valve 80 and the second air supply pipe 72 in sequence, so that the airbag 20 is inflated, thereby raising the height of the seat cushion; when the deflation contact 32 is triggered, the A port of the three-way valve is closed, and the B port and the C port of the three-way valve are opened, so that the gas in the airbag 20 can be discharged to the outside atmosphere through the second air supply pipe 72, the B port of the three-way valve and the C port of the three-way valve, so that the airbag 20 is deflated, thereby lowering the height of the seat cushion. When neither the inflation contact 31 nor the deflation contact 32 is triggered, the A port of the three-way valve, the B port of the three-way valve and the C port of the three-way valve are all closed, thereby cutting off the conduction between the first air supply pipe 71 and the second air supply pipe 72. At the same time, the conduction between the second air supply pipe 72 and the outside atmosphere is also cut off, so that the airbag 20 is neither inflated nor deflated, so that the seat cushion remains at the current height.

[0039] Through the above technical solution, a height adjustment device is arranged at the bottom of the seat cushion, and the transmission rope 52 is driven by the driving mechanism 51 to switch between the tensioned state and the released state to control the valve body 40 to swing in different directions, so that the two ends of the valve body 40 can respectively trigger the inflation contact 31 and the deflation contact 32, so that the airbag 20 can switch between the inflation state and the deflation state, thereby raising or lowering the height of the seat cushion, making the control process of the height adjustment of the seat cushion more intelligent and efficient, and greatly improving the driving and riding comfort.

[0040] According to the embodiment provided in the present disclosure, the driving mechanism 51 can be a linear driving mechanism, so as to ensure the driving effect and driving accuracy of the valve body 40, so that the entire height adjustment device can have strong stability during the working process.

[0041] Reference Figure 1 and Figure 2The driving mechanism 51 may include a lead screw motor (not shown in the figure), a lead screw seat 51a and a lead screw 51b. Among them, the lead screw motor can be used to output driving force. A threaded hole may be opened on the lead screw seat 51a. An external thread is provided on the outer wall of the lead screw 51b, one end of the lead screw 51b can be screwed into the threaded hole, and the other end of the lead screw 51b can be connected to the transmission rope 52, and the lead screw 51b can be configured to be able to reciprocate along its own axis under the drive of the lead screw motor, so that the transmission rope 52 has a tensioned state and a released state, thereby ensuring the switching efficiency and convenience of the transmission rope 52 between the tensioned state and the released state, thereby improving the height adjustment efficiency of the seat cushion.

[0042] Reference Figure 2 and Figure 3 The driving part 50 may further include a pull ring 53, and the pull ring 53 may include a ring portion 53a and a handle portion 53b. One end of the handle portion 53b may be connected to the handle portion 53b connected to the ring portion 53a, and the other end of the handle portion 53b is connected to the transmission rope 52, and the ring portion 53a may be connected to the first end 41 or the second end 42. In the embodiment provided by the present disclosure, the ring portion 53a may be connected to the first end 41, and a connecting ring 43 may be provided at the first end 41, and the ring portion 53a may be sleeved on the connecting ring 43, so as to ensure the reliability of the installation position of the ring portion 53a. By providing the pull ring 53, the stability of the connection between the transmission rope 52 and the valve body 40 can be greatly improved, so as to avoid the situation where the transmission rope 52 is separated from the valve body 40, and ensure the driving effect of the transmission rope 52 on the valve body 40.

[0043] Reference Figure 1 and Figure 2 The height adjustment device provided by the present disclosure may further include a control button 60, the driving mechanism 51 may be electrically connected to the control button 60, and the control button 60 may be configured to control the rotation direction of the lead screw motor driving the lead screw 51b, so that the operator can conveniently control the lead screw motor to perform corresponding operations. In the embodiment provided by the present disclosure, the control button 60 may include a first button and a second button, and the first button and the second button may be used to respectively control the valve body 40 to swing in the first direction or in the second direction, so as to adjust the height of the seat cushion according to the needs of the operator by pressing a button.

[0044] Reference Figure 1 In a second aspect of the present disclosure, a seat is provided, which may include a seat cushion, a seat cushion frame 10 for supporting the seat cushion, and a seat cushion height adjustment device, wherein the seat cushion height adjustment device is the seat cushion height adjustment device described above. The seat has all the beneficial effects of the seat cushion height adjustment device provided by the present disclosure, which will not be described in detail here.

[0045] Reference Figure 1 The airbag 20 is detachably accommodated inside the seat cushion frame 10 , which can ensure the stability of the setting position of the airbag 20 on the one hand, and on the other hand, ensure the reliability of the airbag 20 driving the seat cushion frame 10 , while facilitating the inspection and maintenance of the airbag 20 .

[0046] Reference Figure 2 The seat may further include a mounting shaft (not shown in the figure) having one end fixed to the vehicle body (not shown in the figure) to ensure the stability of the mounting position of the mounting shaft, and the valve body 40 may be swingably mounted on the other end of the mounting shaft so that the valve body 40 can swing back and forth around the axis of the mounting shaft, thereby realizing the swing of the valve body 40 in the first direction or in the second direction, thereby ensuring the stability of the valve body 40 during the swinging process, so that the valve body 40 will not move or deviate during the swinging process.

[0047] Further, refer to Figure 2 According to an embodiment provided by the present disclosure, a through hole 44 may be provided at the center of the valve body 40, and the mounting shaft may include a small neck portion and a large neck portion formed at both ends of the small neck portion, wherein the outer diameter of the small neck portion may be no larger than the inner diameter of the through hole 44 so as to pass through the through hole 44, and the outer diameter of the large neck portion is larger than the inner diameter of the through hole 44, thereby enabling the valve body 40 to be swingably mounted on the mounting shaft while preventing the valve body 40 from being separated from the mounting shaft, thereby ensuring the stability of the valve body 40 during the swinging process, and making the triggering of the inflation contact 31 and the deflation contact 32 more accurate.

[0048] According to a third aspect of the present disclosure, a vehicle is also provided, the vehicle comprising a vehicle body and the seat described above. The vehicle has all the beneficial effects of the seat described above, which will not be described in detail here.

[0049] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0051] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A height adjustment device for a seat cushion, characterized in that: include: An air bag (20) for supporting a seat cushion; A switch (30) comprising an inflation contact (31) for controlling inflation of the airbag (20) and a deflation contact (32) for controlling deflation of the airbag (20); a valve body (40) swingably disposed near the switch (30) and having a first end (41) for triggering the inflation contact (31) and a second end (42) for triggering the deflation contact (32); and The driving part (50) comprises a driving mechanism (51) and a transmission rope (52), wherein the transmission rope (52) is connected between the driving mechanism (51) and the valve body (40) for transmitting a driving force, and the transmission rope (52) is configured to have a tensioned state and a released state under the drive of the driving mechanism (51). In the release state, the valve body (40) is driven to swing in a first direction, so that the first end (41) triggers the inflation contact (31) to increase the height of the seat cushion; In the tensioned state, the valve body (40) is driven to swing in a second direction away from the first direction, so that the second end (42) triggers the deflation contact (32) to reduce the height of the seat cushion.

2. The height adjustment device according to claim 1, characterized in that: The driving mechanism (51) is a linear driving mechanism.

3. The height adjustment device according to claim 2, characterized in that: The driving mechanism (51) comprises: A lead screw motor, used to output driving force; A screw seat (51a) is provided with a threaded hole; and A lead screw (51b) is provided with an external thread on its outer wall, one end of the lead screw (51b) is threaded into the threaded hole, and the other end is connected to the transmission rope (52), and the lead screw (51b) is configured to be able to reciprocate along the axial direction under the drive of the lead screw motor, so that the transmission rope (52) has a tensioned state and a released state.

4. The height adjustment device according to claim 3, characterized in that: The driving portion (50) further comprises a pull ring (53), wherein the pull ring (53) comprises a ring portion (53a) and a handle portion (53b) one end of which is connected to the ring portion (53a), the other end of the handle portion (53b) is connected to the transmission rope (52), and the ring portion (53a) is connected to the first end (41) or the second end (42).

5. The height adjustment device according to claim 4, characterized in that: It also includes a control button (60) electrically connected to the driving mechanism (51), configured to be able to control the rotation direction of the lead screw motor to drive the lead screw (51b).

6. A seat, characterized in that: It comprises a seat cushion, a seat cushion frame (10) for supporting the seat cushion, and a seat cushion height adjustment device, wherein the seat cushion height adjustment device is a seat cushion height adjustment device according to any one of claims 1 to 5.

7. The seat according to claim 6, characterized in that The airbag (20) is detachably accommodated inside the seat cushion frame (10).

8. The seat according to claim 7, characterized in that The seat also includes a mounting shaft with one end fixed to the vehicle body, and the valve body (40) is swingably mounted on the other end of the mounting shaft.

9. The seat according to claim 8, characterized in that A through hole (44) is provided at the center of the valve body (40), and the mounting shaft comprises a small neck and a large neck formed at two ends of the small neck, wherein the outer diameter of the small neck is not larger than the inner diameter of the through hole (44) so ​​as to be used for passing through the through hole (44), and the outer diameter of the large neck is larger than the inner diameter of the through hole (44).

10. A vehicle, characterized in that: The invention comprises a vehicle body and a seat according to any one of claims 6 to 9.

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