Self-resetting prompt drop structure

Abstract

The utility model relates to the technical field of seat adjustment, in particular to a self-resetting prompt drop structure which comprises a prompt drop base, a prompt drop valve, a prompt drop button and a pressing type lock catch. A first mounting hole is formed in the prompt drop base, and the prompt drop valve penetrates through the first mounting hole to be clamped and fixed on the prompt drop base; a second mounting hole is further formed in the prompt drop base, the pressing type lock catch penetrates through the second mounting hole to be clamped and fixed on the prompt drop base, and the pressing type lock catch extends out of one end of the prompt drop base to be clamped with the prompt drop button; a third mounting hole is further formed in the prompt drop base, the prompt drop button penetrates through the third mounting hole to be clamped and fixed to the prompt drop base, and the prompt drop button is used for opening and closing the prompt drop valve; according to the design of the quick-drop structure, the quick-drop button is pressed, the quick-drop button acts on the quick-drop valve, the quick-drop valve is correspondingly opened or closed, the pneumatic element connected with the quick-drop valve executes corresponding inflation or deflation, and therefore the height of the automobile seat is quickly adjusted, and the lifting efficiency of the automobile seat is improved.

Description

Technical Field

[0001] The present application relates to the technical field of seat adjustment, and in particular to a self-resetting quick-descent structure. Background Art

[0002] A car seat is a seat that you sit on when you ride in a car. It includes a seat frame, a seat cushion, a backrest frame, a backrest, a safety belt, a slide rail, a lifter, and a recliner, etc. Currently, car seats are divided into front seats and rear seats according to their position.

[0003] The lifting device of an existing automobile seat discloses a manual lifting adjustment device with double ratchet transmission and interchangeable brake blocks, comprising a handle plate, a mounting plate, a rotating plate, a left ratchet, a right ratchet, an inner tooth dial, a brake block, an A retaining spring, a B retaining spring, a transmission cam, a housing, a central shaft, an output gear, a reset spring, and an end sleeve; when the seat height needs to be adjusted, force is applied from the input end, and the manual operating handle pulls the handle plate to make a circular angular rotation: when the handle plate is rotated counterclockwise, the left guide column and the right guide column of the left ratchet and the right ratchet are guided by the guide groove of the mounting plate, the left tooth segment of the left ratchet is engaged with the inner teeth of the inner tooth dial to drive the inner tooth dial to rotate counterclockwise, and the circumferential shift fork of the inner tooth dial applies force to four brake blocks, one above and one below, one behind and one behind, through the circumferential notch of the brake block, and the four brake blocks are forced to overcome the A retaining spring, the B retaining spring, the left guide column and the right guide column of the left ratchet are guided by the guide groove of the mounting plate, and the left guide column of the left ratchet and the right guide column of the inner tooth dial are engaged with the inner teeth of the inner tooth dial to drive the inner tooth dial to rotate counterclockwise, and the circumferential shift fork of the inner tooth dial applies force to four brake blocks, one above and one below, one behind and one behind, through the circumferential notch of the brake block, and the four brake blocks are forced to overcome the A retaining spring, the B retaining spring, the left guide column and the right guide column of the left ratchet and the right guide column of the right ratchet are guided by the guide groove of the mounting plate, and the left guide column and the right guide column of the left ratchet and the right guide column of the right ratchet are guided by the guide groove of the mounting plate, the left guide column and the right guide column of the left ratchet and the right guide The elastic force of the retaining spring is used to centripetally clamp the transmission cam and drive the output gear and the end sleeve to rotate counterclockwise. The output gear converts the counterclockwise rotation into a lifting motion for adjusting the height of the car seat through the rack meshing with it.

[0004] The existing full-airbag car seat has many parts in the lifting device. When adjusting the seat height, the handle plate needs to be manually shaken in a circular motion. The rotation direction of the handle plate determines the rise or fall of the seat. The operation method is complicated and affects the lifting efficiency of the car seat. Utility Model Content

[0005] In order to improve the lifting efficiency of a car seat, the present application provides a self-resetting quick-descent structure.

[0006] The self-resetting rapid descent structure provided in this application adopts the following technical solution:

[0007] A self-resetting rapid descent structure, comprising a rapid descent base, a rapid descent valve, a rapid descent button and a press-type lock buckle;

[0008] The descent base is provided with a first mounting hole, and the descent valve passes through the first mounting hole and is fixed on the descent base by clamping;

[0009] The rappelling base is also provided with a second mounting hole, the push-type lock buckle passes through the second mounting hole and is fixed on the rappelling base, one end of the push-type lock buckle extends out of the rappelling base and is engaged with the rappelling button, and the push-type lock buckle can be extended and retracted along the extension and retraction direction of the rappelling valve;

[0010] The quick-descent base is also provided with a third mounting hole, the quick-descent button is arranged through the third mounting hole, and the extension section of the quick-descent button can slide along the quick-descent base, and the quick-descent button is used to open and close the quick-descent valve.

[0011] By adopting the above technical solution, the quick-descent valve and the push-type lock are fixedly installed on the quick-descent base, and the quick-descent button is engaged with the quick-descent base. By pressing the quick-descent button, the quick-descent button acts on the quick-descent valve, so that the quick-descent valve opens or closes accordingly, and the pneumatic component connected to the quick-descent valve performs corresponding inflation or deflation, thereby allowing the height of the car seat to be quickly adjusted, thereby improving the lifting efficiency of the car seat.

[0012] In a specific possible implementation method, the speed drop valve is provided with an elastic valve stem, one end of the elastic valve stem extends into the inner cavity of the speed drop valve and slides in the inner cavity of the speed drop valve, and the elastic valve stem extends out of the speed drop valve and is engaged with the first mounting hole;

[0013] The quick-drop valve is provided with an air inlet and an air outlet.

[0014] By adopting the above technical solution, the elastic valve stem is engaged with the first mounting hole, which facilitates the installation and fixation of the quick-drop valve. The elastic valve stem slides in the inner cavity of the quick-drop valve, which facilitates the opening or closing of the quick-drop valve, thereby facilitating the lifting and lowering of the seat.

[0015] In a specific possible implementation scheme, the push-type lock includes a shell, a main body and two spring buckles;

[0016] The main body extends into the inner cavity of the shell, and the main body can slide along the inner cavity of the shell;

[0017] The two spring buckles are arranged at one end of the main body extending out of the housing, and the movement states of the spring buckles include a locked state and an unlocked state.

[0018] In the engaged state, the main body is completely inserted into the inner cavity of the shell, and the distance between the two ends of the spring buckles away from the main body is the smallest, and the spring buckles are engaged with the descent button;

[0019] In the unlocked state, one end of the main body extends out of the inner cavity of the shell, and the distance between the two spring buckles away from one end of the main body increases, and the spring buckles are disengaged from the descent button;

[0020] The shell is clamped and fixed on the rappelling base through the second mounting hole.

[0021] By adopting the above technical solution, the push-type lock buckle is engaged on the rappelling base through the shell, which facilitates the installation and fixation of the push-type lock buckle. When the main body is fully extended into the inner cavity of the shell, the two spring buckles are close to each other, and the spring buckle engages and fixes the rappelling button, thereby realizing the limited fixation of the rappelling button; when the main body extends out of the inner cavity of the shell, the two spring buckles are separated from each other, and the spring buckle is disengaged from the rappelling button, thereby releasing the fixation of the rappelling button.

[0022] In a specific possible implementation scheme, the speed descent button includes a key cap and an abutment rod; the abutment rod is integrally arranged in the middle of the key cap, and the abutment rod abuts against one end of the elastic valve rod extending out of the speed descent base.

[0023] By adopting the above technical solution, the abutment rod is integrally arranged in the middle of the keycap, and the abutment rod abuts against one end of the elastic valve stem extending out of the speed-drop base. When the keycap is pressed, the abutment rod generates downward pressure on the elastic valve stem, causing the elastic valve stem to slide in the inner cavity of the elastic valve, so that the elastic valve stem blocks the inner cavity of the speed-drop valve, thereby closing the speed-drop valve and stopping the pneumatic component from ventilating the car seat, thereby achieving a reduction in the height of the car seat.

[0024] In a specific possible implementation scheme, the descent button further includes a limiting guide rod and a clamping rod;

[0025] The limiting guide rod is integrally arranged on the side of the key cap, and the limiting guide rod extends into the third mounting hole, the length of the limiting guide rod is greater than the thickness of the descent base, and the limiting guide rod can slide along the third mounting hole;

[0026] The clamping rod is arranged on the side of the key cap, and the clamping rod and the limiting guide rod are arranged close to the adjacent two side walls of the key cap, and one end of the clamping rod away from the key cap can be clamped with the spring buckle.

[0027] By adopting the above technical solution, the limiting guide rod is clamped in the third mounting hole, so that when the speed-drop button is pressed, the limiting guide rod can slide along the third mounting hole, avoiding the displacement of the speed-drop button and improving the stability of pressing the speed-drop button; at the same time, the end of the clamping rod away from the keycap can be clamped with the spring buckle, so as to facilitate the spring buckle to fix the position of the speed-drop button.

[0028] In a specific feasible implementation scheme, an elastic claw is integrally provided at one end of the limiting guide rod extending out of the third mounting hole, and the elastic claw extends out of one end of the rappelling base, and the maximum outer diameter of the elastic claw in the extended state is greater than the diameter of the third mounting hole, and the maximum outer diameter of the elastic claw in the contracted state is smaller than the diameter of the third mounting hole.

[0029] By adopting the above technical solution, an elastic claw is set, and when the speed-drop valve is opened, the elastic valve stem lifts the abutment rod, thereby causing the speed-drop button to pop up, and the elastic claw abuts against the end face of the third mounting hole, so that the third mounting hole forms a limit for the speed-drop button, preventing the speed-drop button from detaching from the speed-drop base, thereby improving the stability of the speed-drop button.

[0030] In a specific possible implementation manner, two limiting guide rods are provided, and the two guiding limiting rods are provided close to opposite side walls of the key cap.

[0031] By adopting the above technical solution, the two limit guide rods are both engaged in the third mounting hole. When the keycap is pressed, the two limit guide rods slide in the third mounting hole, avoiding the displacement of the quick-drop button during the pressing process, and further improving the stability of pressing the quick-drop button.

[0032] In a specific possible implementation manner, two of the clamping rods are provided, and the two clamping rods are provided close to two opposite side walls of the key cap.

[0033] By adopting the above technical solution, two clamping rods are provided, and when the keycap is pressed, the two clamping rods are both clamped in the spring buckle, the quick-drop valve is closed, and the ventilation of the car seat stops, thereby avoiding the quick-drop button from resetting automatically, facilitating improving the clamping quality of the clamping rods, and further facilitating the quick-drop of the car seat.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The designed quick-descent structure fixes the quick-descent valve and the push-type lock buckle on the quick-descent base, and the quick-descent button is snap-connected with the quick-descent base. When the quick-descent button is pressed, the clamping rod forms a downward pressure on the spring buckle, so that the main body shrinks in the shell, and the shell clamps and fixes the main body so that the two spring buckles are close to each other. The spring buckle is snapped on the side wall of the clamping rod in the retracted state, so that the quick-descent button will not rebound when pressed, the quick-descent valve is closed, and the ventilation of the car seat stops, thereby realizing quick descent; when the quick-descent button is pressed again, the main body continues to shrink downward, the shell releases the main body, the two spring buckles move away from each other, the clamping rod and the spring buckle are disengaged, and the quick-descent button pops up, so that the quick-descent valve is opened, and the ventilation of the car seat is thereby raised; by pressing the quick-descent button, the opening and closing of the quick-descent valve is realized, thereby realizing the lifting and lowering of the car seat, thereby improving the lifting and lowering efficiency of the car seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of a self-resetting rapid descent structure according to an embodiment.

[0037] Figure 2 It is a schematic diagram of the assembly of a self-resetting rapid descent structure according to an embodiment.

[0038] Figure 3 The invention is a schematic diagram of a descent base of a self-resetting descent structure in an embodiment.

[0039] Figure 4 It is a schematic diagram of a quick-drop valve with a self-resetting quick-drop structure in an embodiment.

[0040] Figure 5 The invention is a schematic diagram of a quick-descent button of a self-resetting quick-descent structure in an embodiment.

[0041] Figure 6 It is a schematic diagram of a push-type lock buckle with a self-resetting quick-descent structure in an embodiment.

[0042] Description of the drawings: 1. Quick-descent base; 11. First mounting hole; 12. Second mounting hole; 13. Third mounting hole; 2. Quick-descent valve; 21. Elastic valve stem; 22. Air inlet; 23. Air outlet; 3. Quick-descent button; 31. Key cap; 32. Abutment rod; 33. Limiting guide rod; 331. Elastic claw; 34. Clamping rod; 4. Push-type lock; 41. Shell; 42. Spring buckle; 43. Main body. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-6 This application is described in further detail.

[0044] The embodiment of the present application discloses a self-resetting rapid descent structure.

[0045] Reference Figure 1 and Figure 2 , a self-resetting descent structure, comprising a descent base 1, a descent valve 2, a descent button 3 and a press-type lock 4; Figure 3 A first mounting hole 11, a second mounting hole 12 and a third mounting hole 13 are provided on the rappelling base 1; the rappelling valve 2 is fixed on the rappelling base 1 through the first mounting hole 11, the push-type lock buckle 4 is fixed on the rappelling base 1 through the second mounting hole 12, and the rappelling button 3 is fixed on the rappelling base 1 through the third mounting hole 13.

[0046] Reference Figure 2 and Figure 4 One end of the quick-drop valve 2 is provided with two elastic valve stems 21, and the two elastic valve stems 21 are deeply inserted into the valve cavity of the quick-drop valve 2. The elastic valve stems 21 slide in the valve cavity of the quick-drop valve 2 to realize the opening or closing of the quick-drop valve 2; the other end of the quick-drop valve 2 is provided with an air inlet 22 and an air outlet 23, wherein the air inlet 22 is connected to the air pump, and the air outlet 23 is connected to the cylinder. When the quick-drop valve 2 is opened, the air pump inputs gas to the cylinder through the quick-drop valve 2, and the cylinder drives the car seat to rise. When the quick-drop valve 2 is closed, the air pump stops supplying gas, and the car seat drops.

[0047] Reference Figure 2 and Figure 6 The push-type lock buckle 4 includes a shell 41, a main body 43 and two spring buckles 42. The main body 43 is engaged in the inner cavity of the shell 41. The two spring buckles 42 are fixedly connected to one end of the main body 43 extending out of the shell 41. The main body 43 can be extended and retracted in the inner cavity of the shell 41. The shell 41 is engaged and fixed on the rappelling base 1 through the second mounting hole 12. When force is applied to the push-type lock buckle 4, the main body 43 shrinks downward, the two spring buckles 42 are close to each other, and the shell 41 locks and fixes the main body 43. When force is applied to the push-type lock buckle 4 again, the main body 43 continues to shrink downward, the shell 41 releases the main body 43, and the two spring buckles 42 move away from each other.

[0048] Reference Figure 2 and Figure 5The speed-drop button 3 includes a key cap 31, a limiting guide rod 33, two clamping rods 34 and an abutting rod 32; the two abutting rods 32 are integrally arranged at the middle position of the bottom wall of the key cap 31, and the two abutting rods 32 are respectively abutted with one end of the two elastic valve stems 21 extending out of the speed-drop base 1; the limiting guide rod 33 is integrally arranged on the side of the bottom wall of the key cap 31, the limiting guide rod 33 is clamped in the third mounting hole 13, the length of the limiting guide rod 33 is greater than the thickness of the speed-drop base 1, and the limiting guide rod 33 can slide along the third mounting hole 13, and the limiting guide rod One end of 33 extending out of the third mounting hole 13 is integrally provided with an elastic claw 331, and the maximum outer diameter of the elastic claw 331 in the expanded state is larger than the diameter of the third mounting hole 13, and the maximum outer diameter of the elastic claw 331 in the contracted state is smaller than the diameter of the third mounting hole 13; the limiting guide rod 33 can be one, two, or three, but whenever the speed descent button 3 is pressed, the limiting guide rod 33 can slide smoothly in the third mounting hole 13. In this embodiment, two limiting guide rods 33 are provided, and the two limiting guide rods 33 are about the speed descent The button 3 is symmetrically arranged; the two clamping rods 34 are arranged near the opposite side walls of the key cap 31, and the end of the clamping rod 34 away from the key cap 31 is clamped with the spring buckle 42, and the outer contour of the end of the clamping rod 34 away from the key cap 31 is matched with the inner contour of the spring buckle 42 when it is contracted. When the speed-drop button 3 is pressed, the push-type lock buckle 4 is subjected to the downward pressure, the main body 43 slides downward, the two spring buckles 42 approach each other, and the end of the clamping rod 34 away from the key cap 31 is clamped and fixed by the spring buckle 42. When the main body 43 is clamped and fixed to the shell 4 1, the clamping rod 34 is fixed accordingly, so that the speed-down button 3 limits and fixes the elastic valve stem 21, the elastic valve stem 21 closes the speed-down valve 2, and the car seat descends; the push-type lock buckle 4 and the clamping rod 34 can be one pair, two pairs, or three pairs, as long as the spring clamp buckle 42 can limit and fix the clamping rod 34. In this embodiment, two pairs of push-type lock buckles 4 and clamping rods 34 are arranged, and the two pairs of clamping rods 34 are symmetrically arranged on two sides perpendicular to the edge where the guide rod is located, and the two pairs of push-type lock buckles 4 and the clamping rods 34 are arranged correspondingly.

[0049] The implementation principle of a self-resetting fast-drop structure of the present embodiment is as follows: first, the fast-drop valve 2 is installed in the first mounting hole 11, and the push-type lock buckle 4 is installed in the second mounting hole 12, and the elastic claw 331 is adjusted to make the elastic claw 331 contract, and the elastic claw 331 is pushed into the third mounting hole 13, and the key cap 31 is pushed so that the limiting guide rod 33 extends out of the third mounting hole 13, and the elastic claw 331 is abutted against the end surface of the third mounting hole 13 after being relaxed. At this time, the clamping rod 34 abuts against the spring buckle 42, and the abutting rod 32 abuts against the elastic valve stem 21 of the fast-drop valve 2, and the air inlet 22 provided on the fast-drop valve 2 is connected to the air pump, and the air outlet 23 is connected to the cylinder; in the initial state, the elastic valve stem 21 lifts the abutting rod 32, so that the fast-drop button 3 pops up, the fast-drop valve 2 is opened, and the elastic claw 331 abuts against the end surface of the third mounting hole 13, forming a limiting fixation on the limiting guide rod 33, so that the limiting The position guide rod 33 is fixed on the speed-dropping base 1, and the air pump continuously supplies air to the cylinder through the speed-dropping valve 2, and the cylinder pushes the car seat to maintain the raised state. When the height of the car seat needs to be lowered, the speed-dropping button 3 is pressed, and the key cap 31 pushes the limit guide rod 33, the abutment rod 32 and the clamping rod 34 to move downward together, and the abutment rod 32 drives the elastic valve stem 21 to move downward, and the elastic valve stem 21 closes the speed-dropping valve 2, and the air pump stops supplying air, and the car seat is lowered accordingly; at the same time, the clamping rod 34 forms a downward pressure on the push-type lock buckle 4, so that the main body 43 shrinks in the shell 41, and the shell 41 clamps and fixes the main body 43. At this time, the two spring buckles 42 are close to each other and retracted. The spring buckles 42 are clamped on the side wall of the clamping rod 34 in the retracted state, so that the speed-dropping button 3 will not rebound when pressed, thereby causing the elastic valve stem 21 to continuously close the speed-dropping valve 2, and the car seat remains in the lowered state.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A self-resetting rapid descent structure, characterized in that: It comprises a quick-descent base (1), a quick-descent valve (2), a quick-descent button (3) and a push-type lock buckle (4); The descent base (1) is provided with a first mounting hole (11), and the descent valve (2) passes through the first mounting hole (11) and is fixed on the descent base (1) by snapping; The descent base (1) is also provided with a second mounting hole (12), the push-type lock buckle (4) passes through the second mounting hole (12) and is fixed on the descent base (1), one end of the push-type lock buckle (4) extending out of the descent base (1) is engaged with the descent button (3), and the push-type lock buckle (4) can be extended and retracted along the extension and retraction direction of the descent valve (2); The descent base (1) is also provided with a third mounting hole (13), the descent button (3) is arranged through the third mounting hole (13), and an extension section of the descent button (3) can slide along the descent base (1), and the descent button (3) is used to open and close the descent valve (2).

2. A self-resetting rapid descent structure according to claim 1, characterized in that: The quick-drop valve (2) is provided with an elastic valve stem (21), one end of the elastic valve stem (21) extends into the inner cavity of the quick-drop valve (2) and slides in the inner cavity of the quick-drop valve (2), and the part of the elastic valve stem (21) extending out of the quick-drop valve (2) is engaged with the first mounting hole (11); The quick-drop valve (2) is provided with an air inlet (22) and an air outlet (23).

3. A self-resetting rapid descent structure according to claim 2, characterized in that: The push-type lock buckle (4) comprises a shell (41), a main body (43) and two spring buckles (42); The main body (43) extends into the inner cavity of the outer shell (41), and the main body (43) can slide along the inner cavity of the outer shell (41); The two spring buckles (42) are arranged at one end of the main body (43) extending out of the housing (41), and the movement states of the spring buckles (42) include a locked state and an unlocked state; In the engaged state, the main body (43) is completely inserted into the inner cavity of the shell (41), and the distance between the two ends of the spring buckles (42) away from the main body (43) is the smallest, and the spring buckles (42) are engaged with the descent button (3); In the unlocked state, one end of the main body (43) extends out of the inner cavity of the shell (41), and the distance between the two spring buckles (42) away from one end of the main body (43) increases, and the spring buckles (42) are separated from the descent button (3); The housing (41) passes through the second mounting hole (12) and is snap-fitted and fixed on the rappelling base (1).

4. A self-resetting rapid descent structure according to claim 3, characterized in that: The speed-drop button (3) comprises a key cap (31) and an abutment rod (32); the abutment rod (32) is integrally arranged in the middle of the key cap (31), and the abutment rod (32) abuts against one end of the elastic valve rod (21) extending out of the speed-drop base (1).

5. A self-resetting rapid descent structure according to claim 4, characterized in that: The quick-descent button (3) further comprises a limiting guide rod (33) and a clamping rod (34); The limiting guide rod (33) is integrally arranged on the side of the key cap (31), and the limiting guide rod (33) extends into the third mounting hole (13), the length of the limiting guide rod (33) is greater than the thickness of the descent base (1), and the limiting guide rod (33) can slide along the third mounting hole (13); The clamping rod (34) is arranged on the side of the keycap (31), and the clamping rod (34) and the limiting guide rod (33) are arranged close to the adjacent two side walls of the keycap (31), and one end of the clamping rod (34) away from the keycap (31) can be clamped with the spring buckle (42).

6. A self-resetting rapid descent structure according to claim 5, characterized in that: An elastic claw (331) is integrally provided at one end of the limiting guide rod (33) extending out of the third mounting hole (13); the elastic claw (331) extends out of one end of the rappelling base (1); and the maximum outer diameter of the elastic claw (331) in a stretched state is greater than the diameter of the third mounting hole (13); and the maximum outer diameter of the elastic claw (331) in a contracted state is less than the diameter of the third mounting hole (13).

7. A self-resetting rapid descent structure according to claim 6, characterized in that: The limiting guide rods (33) are provided in two numbers, and the two guiding limiting rods are provided close to the opposite side walls of the key cap (31).

8. The self-resetting rapid descent structure according to claim 6, characterized in that: The number of the clamping rods (34) is two, and the two clamping rods (34) are arranged close to the two opposite side walls of the key cap (31).

Images