Auxiliary locking structure applied to adjustable seat device

Abstract

The utility model discloses an auxiliary locking structure applied to an adjustable seat device, the adjustable seat device can move in the first direction, the auxiliary locking structure is arranged in the adjustable seat device, the auxiliary locking structure comprises a fixed shell, and two movable parts are symmetrically arranged in the fixed shell; the external air source assembly can drive the two movable parts to move oppositely in the second direction, the ends, away from each other, of the two movable parts extend out of the fixed shell in the second direction and are connected with the connecting blocks, the side walls, away from each other, of the two connecting blocks are provided with limiting rods, and the ends, away from the connecting blocks, of the limiting rods are limiting ends. The limiting end is used for limiting the adjustable seat device; when the adjustable seat device needs to be adjusted, the two movable parts are close to each other, so that the limiting of the adjustable seat device is relieved, the two movable parts are far away from each other after adjustment, so that the limiting end locks and limits the adjustable seat device, and the stability of the adjustable seat device is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of automobile parts, in particular to an auxiliary locking structure applied to an adjustable seat device. BACKGROUND

[0002] The automobile seat has a headrest and a leg rest. The headrest, also known as a backrest, is an auxiliary device provided to improve the comfort and safety of the vehicle. When the vehicle is impacted, the headrest can prevent the occupant's head from moving backward, relieving the neck injury. The headrest skin is made of blow-molded material or thin-shell foam vinyl chloride, as well as sewn fabric, artificial leather, etc. The framework is made of steel plate punched products, pipes, plastic injection molded products and blow molded products. The leg rest is a device provided to improve the comfort of the seat.

[0003] The existing automobile seat headrest and leg rest are unstable after adjusting the position and have abnormal noise during movement. Especially when the vehicle is rear-ended, the human body will fall backward due to inertia. At this time, the pressure of vehicle acceleration or deceleration is concentrated on the fragile neck and head of the human body, and the headrest serves as a buffer to protect the human head. If the headrest is unstable, it not only cannot protect the head and neck, but also can cause more serious injuries to the human body. Therefore, it is particularly important to solve the stability problem. SUMMARY

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an auxiliary locking structure applied to an adjustable seat device.

[0005] In a first aspect, the present application provides an auxiliary locking structure applied to an adjustable seat device. The adjustable seat device is moved along a first direction by a driving mechanism. The auxiliary locking structure is arranged inside the adjustable seat device and is in communication with an external air source assembly. The auxiliary locking structure is used to improve the fixing stability of the adjustable seat device after the adjustable seat device is moved. The auxiliary locking structure comprises:

[0006] A fixed housing is provided with an accommodation space inside. The accommodation space is in communication with the external air source assembly.

[0007] Two movable parts are symmetrically arranged in the accommodation space and extend to the outside of the accommodation space at the ends away from each other. The accommodation space is filled with air or discharged by the external air source assembly, and a reset assembly is arranged to drive the movable parts to move.

[0008] The movable part has a first state, a second state and a third state, when the movable part is in the first state, the two movable parts are away from each other and are in a first set position; when the movable part is in the second state, the two movable parts are close to each other and are in a second set position; when the movable part is in the third state, the two movable parts are simultaneously moved in the direction away from each other from the second set position to the first set position.

[0009] According to the technical scheme provided by the embodiment of the application, the movable part comprises a piston assembly, the piston assembly is movably installed in the accommodation space, and the accommodation space is divided into a first driving space and a first driven space, the first driving space and the first driven space are not communicated with each other, and the first driving space is communicated with the external air source assembly;

[0010] When the movable part is in the first state, the first driving space is deflated through the external air source assembly, the two movable parts are away from each other, and are in the first set position;

[0011] When the movable part is in the second state, the first driving space is inflated through the external air source assembly, and the two movable parts are simultaneously moved in the direction close to each other to the second set position;

[0012] When the movable part is in the third state, the first driving space is deflated through the external air source assembly, and the two movable parts are simultaneously moved in the direction away from each other, and are simultaneously moved to the first set position through the reset assembly;

[0013] Or, the piston assembly divides the accommodation space into a second driving space and a second driven space, the second driving space and the second driven space are not communicated with each other, and the second driving space is communicated with the external air source assembly;

[0014] When the movable part is in the first state, the second driving space is inflated through the external air source assembly, the two movable parts are away from each other, and are in the first set position;

[0015] When the movable part is in the second state, the second driving space is deflated through the external air source assembly, and the two movable parts are simultaneously moved in the direction close to each other to the second set position through the reset assembly;

[0016] When the movable part is in the third state, the second driving space is inflated through the external air source assembly, and the two movable parts are simultaneously moved in the direction away from each other, and are in the first set position.

[0017] According to the technical scheme provided in the embodiment of the present application, the fixed shell is provided with a through opening communicated with the accommodating space on each of two opposite side walls in the second direction, a fixed block is arranged at the through opening, and a movable opening is arranged through the fixed block in the second direction, and the movable opening is communicated with the accommodating space and the outside of the fixed shell at two ends respectively; the second direction is perpendicular to the first direction.

[0018] According to the technical scheme provided in the embodiment of the present application, the piston assembly comprises a movable block, the movable block is movably arranged in the accommodating space, and a through opening is arranged through the movable block in the second direction, and a first sealing ring and a wear-resistant ring are arranged on the circumferential side wall of the movable block in the second direction, and the first sealing ring is relatively close to the other movable block.

[0019] According to the technical scheme provided in the embodiment of the present application, the movable part further comprises a piston rod, the piston rod extends in the second direction, one end of the piston rod extends to the outside of the fixed shell through the through opening and the movable opening in the second direction in sequence and is connected with a connecting block, and a limiting rod extending in the second direction is connected to the side wall away from the piston rod of the connecting block.

[0020] According to the technical scheme provided in the embodiment of the present application, the reset assembly comprises a magnet, the magnet is fixedly arranged inside the accommodating space and located between the two movable parts, one end of the piston rod located inside the accommodating space is provided with a magnetic ring, and the magnetic poles at two ends of the magnet in the second direction are the same as the magnetic poles of the magnetic ring corresponding to the magnet.

[0021] According to the technical scheme provided in the embodiment of the present application, the reset assembly comprises a first elastic member, the first elastic member is arranged inside the accommodating space and located between the two movable parts, and the two ends of the first elastic member in the second direction are fixedly connected with one end of the two piston rods close to each other respectively.

[0022] According to the technical scheme provided in the embodiment of the present application, the reset assembly comprises a second elastic member, the second elastic member is arranged through the through opening in the second direction, and the two ends of the second elastic member are fixedly connected with the fixed block and the movable block respectively.

[0023] According to the technical scheme provided in the embodiment of the present application, the reset assembly comprises a third elastic member, the third elastic member is arranged inside the accommodating space and located between the two movable parts, and the two ends of the third elastic member in the second direction are fixedly connected with one end of the two piston rods close to each other respectively.

[0024] In a second aspect, the application provides an adjustable seat device, comprising the auxiliary locking structure mounted in the adjustable seat device, and at least one air bag arranged in the adjustable seat device, wherein the air bag is connected with an external air source assembly to drive the adjustable seat device to move in a first direction.

[0025] The inner wall of the adjustable seat device is provided with a plurality of limiting holes arranged in the first direction, and the limiting holes are matched with the end of the limiting rod away from the connecting block.

[0026] In summary, the application discloses an auxiliary locking structure applied to an adjustable seat device. The adjustable seat device can be driven by a driving mechanism to move in a first direction. The auxiliary locking structure is arranged in the adjustable seat device to lock and limit the adjustable seat device after moving. The auxiliary locking structure comprises a fixed shell, an accommodating space arranged in the fixed shell, and two movable parts symmetrically arranged in the accommodating space. The two movable parts can move towards each other under the action of an external air source assembly and a reset assembly.

[0027] When the adjustable seat device needs to be adjusted, the two movable parts move towards each other to release the limitation of the adjustable seat device. The adjustable seat device moves in the first direction to adjust the position. After adjustment, the two movable parts move away from each other to limit the adjustable seat device again. Thus, the stability of the adjustable seat device is ensured, the human body can be stably supported, and the human body is prevented from being hurt. BRIEF DESCRIPTION OF DRAWINGS

[0028] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the following drawings:

[0029] Figure 1 It is an exploded view of an adjustable seat device.

[0030] Figure 2 It is a top view and sectional view of an adjustable seat device.

[0031] Figure 3 It is an exploded view of an auxiliary locking structure.

[0032] Figure 4 It is a schematic view of a second air inlet and outlet hole.

[0033] Figure 5 It is a schematic view of a magnet.

[0034] Figure 6 It is a schematic view of a first elastic member.

[0035] Figure 7A schematic view of the second elastic member.

[0036] Figure 8 A schematic view of the third elastic member.

[0037] Reference numerals in the drawings: 1, fixed housing; 2, connecting block; 3, limiting rod; 4, fixed block; 5, movable block; 6, first sealing ring; 7, wear-resistant ring; 8, piston rod; 9, magnetic ring; 10, magnet; 11, first elastic member; 12, second elastic member; 13, third elastic member; 14, first air inlet and outlet hole; 15, headrest outer shell; 16, headrest outer shell cover; 17, limiting hole; 18, headrest inner shell; 19, limiting block; 20, movable hole; 21, guide sliding slot; 22, guide sliding rail; 23, stand; 24, avoidance groove; 25, air bag; 26, second sealing ring; 27, second air inlet and outlet hole; 28, first driving space; 29, first driven space; 30, second driving space; 31, second driven space; 32, through port; 33, third sealing ring. DETAILED DESCRIPTION

[0038] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and are not a limitation on the application. In addition, it should be noted that only the parts related to the application are shown in the drawings for ease of description.

[0039] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0040] Please refer to Figures 1 to 3 The auxiliary locking structure applied to the adjustable seat device, wherein the adjustable seat device is driven by a driving mechanism to be movable along a first direction, and the auxiliary locking structure can lock and limit the adjustable seat device, wherein the first direction is Figure 2 the vertical direction in the figure, and specifically, the auxiliary locking structure comprises:

[0041] The fixed housing 1 extends along a second direction, and the fixed housing 1 is internally provided with an accommodating space, and the fixed housing 1 is provided with a through port 32 on each of the two opposite side walls in the second direction, the through port 32 is provided with a fixed block 4, and the fixed block 4 is provided with a movable hole penetrating through along the second direction, and the movable hole is in communication with the accommodating space and the outside of the fixed housing 1 at both ends; the second direction is Figure 2 the horizontal direction in the figure, and the second direction is perpendicular to the first direction;

[0042] It should be noted that the fixed block 4 is provided with two second sealing rings 26 on the circumferential side wall;

[0043] Further, the two movable parts are symmetrically arranged inside the accommodating space, and the accommodating space is connected with an external air source assembly. By inflating and deflating the external air source assembly and setting a reset assembly, the two movable parts can be driven to move towards each other along the second direction.

[0044] Further, the movable part has a first state, a second state and a third state. When the movable part is in the first state, the two movable parts are away from each other and are in a first set position. When the movable part is in the second state, the two movable parts move towards each other and are in a second set position. When the movable part is in the third state, the two movable parts move away from each other from the second set position to the first set position.

[0045] Further, the movable part includes a movable block 5 movably arranged in the accommodating space, and a through hole is formed in the movable block 5 along the second direction.

[0046] Further, the movable block 5 is arranged with a first sealing ring 6 and a wear-resistant ring 7 along the second direction on the circumferential side wall, and the first sealing ring 6 is relatively close to the other movable block 5. Specifically, two installation grooves are formed in the circumferential side wall of the movable block 5, and the first sealing ring 6 and the wear-resistant ring 7 are arranged in the two installation grooves respectively.

[0047] Further, the movable part further includes a piston rod 8 extending along the second direction, one end of the piston rod 8 extending to the outside of the fixed shell 1 along the second direction through the through hole and the movable hole in sequence and connected with the connecting block 2, and the other end of the piston rod 8 is located inside the accommodating space.

[0048] Further, the two connecting blocks 2 are arranged with a limiting rod 3 on the side wall away from each other, the limiting rod 3 extends along the second direction, and the end of the limiting rod 3 away from the connecting block 2 is a limiting end for locking and limiting the adjustable seat device.

[0049] Further, the movable block 5 divides the accommodating space into a first driving space 28 and a first driven space 29, the first driving space 28 and the first driven space 29 are not connected with each other, and the fixed shell 1 is provided with a first air inlet and outlet hole 14 corresponding to the two first driving spaces 28 on the top, and is connected with an external air source assembly, and the two first driven spaces are close to each other.

[0050] Further, a reset assembly is further included for resetting the two movable parts.

[0051] Optionally, when the movable part is in the first state, the first driving space 28 is deflated by the external air source assembly, the two movable parts are away from each other, and are in the first set position. At this time, the two movable blocks 5 are located at both ends of the accommodating space in the second direction, the limiting rod 3 locks and limits the adjustable seat device, and the stability of the adjustable seat device is ensured.

[0052] When the movable part is in the second state, the first active space 28 is inflated by the external air source assembly, the two movable parts 5 move in the direction of approaching each other at the same time, and are in the second set position, and the reset assembly is acted on, at this time, the limiting rod 3 is disengaged from the adjustable seat device, and the locking and limiting of the adjustable seat device is released;

[0053] When the movable part is in the third state, the first active space 28 is deflated by the external air source assembly, and under the action of the reset assembly, the two movable parts 5 move in the direction of moving away from each other at the same time, from the second set position to the first set position, at this time, the limiting rod 3 again locks and limits the adjustable seat device.

[0054] Optionally, as shown in Figure 5 , the reset assembly includes a magnet 10, the magnet 10 is fixedly arranged inside the containing space, and is located between the two movable parts and between the two first driven spaces 29, and one end of the piston rod 8 inside the containing space is provided with a magnetic ring 9, the two ends of the magnet 10 in the second direction are respectively the same as the magnetic poles of the magnetic ring 9 corresponding to the magnet 10; the magnet 10 is provided with two third sealing rings 33;

[0055] Optionally, as shown in Figure 6 , the reset assembly includes a first elastic member 11, the two first driven spaces 29 are connected, the first elastic member 11 is arranged between the two movable parts and inside the first driven space 29, and the first elastic member 11 is fixedly connected to the one end close to the two piston rods 8 at the two ends in the second direction respectively; the first elastic member 11 can be a self-resetting spring; optionally, the two magnetic rings 9 have the same magnetic pole direction.

[0056] Embodiment two

[0057] Unlike embodiment one, in this embodiment, the movable part divides the containing space into a second active space 30 and a second driven space 31, the second active space 30 is located between the two movable parts, and the two second driven spaces 31 are respectively and symmetrically distributed on the two sides of the second active space 30 in the second direction, and the second active space 30 is provided with a second gas inlet and outlet hole 27 (as shown in Figure 5 ) on the top of the fixed body 1 corresponding to the second active space 30, and the second gas inlet and outlet hole 27 is connected with the external air source assembly, and the gas is filled into or extracted from the second active space 30 by starting the external air source assembly;

[0058] When the movable part is in the first state, the second active space 30 is inflated by the external air source assembly, the two movable parts move away from each other, and are in the first set position, and the reset assembly is acted on, at this time, the limiting rod 3 can lock and limit the adjustable seat device;

[0059] When the movable part is in the second state, the second active space 30 is deflated by the external air source assembly, and under the action of the reset assembly, the two movable parts simultaneously move in the direction of approaching each other to the second set position, at this time, the limiting rod 3 is away from the adjustable seat device, and the locking and limiting of the adjustable seat device are released;

[0060] When the movable part is in the third state, the second active space 30 is inflated by the external air source assembly, and the two movable parts simultaneously move in the direction of moving away from each other to the first set position, at this time, the limiting rod 3 again locks and limits the adjustable seat device.

[0061] Optionally, as shown in Figure 7 , the reset assembly includes a second elastic member 12, the second elastic member 12 is sleeved on the two piston rods 8, and the two ends of the second elastic member 12 are fixedly connected with the fixed block 4 and the movable block 5 respectively; the second elastic member 12 can be a self-resetting spring; optionally, the two magnetic rings 9 have the same magnetic pole;

[0062] Optionally, as shown in Figure 8 , the reset assembly includes a third elastic member 13, the third elastic member 13 is arranged inside the accommodating space and located between the two movable parts, and the two ends of the third elastic member 13 in the second direction are fixedly connected with the one ends of the two piston rods 8 close to each other; the third elastic member 13 can be a self-resetting spring piece; optionally, the two magnetic rings 9 have the same magnetic pole.

[0063] Embodiment three

[0064] An adjustable seat device, which applies the auxiliary locking structure proposed in embodiment one and embodiment two, specifically, as shown in Figure 1 and Figure 2 , an adjustable seat device includes a headrest, the headrest includes a headrest shell 15, a first accommodating groove is formed in a side wall of the headrest shell 15 in a first direction, and the headrest further includes a headrest shell cover 16 which is coupled with the headrest shell 15;

[0065] Further, a plurality of limiting holes 17 are arranged in the first direction on the two opposite side walls of the headrest shell 15 in a second direction, and the limiting holes 17 are in communication with the first accommodating groove;

[0066] Further, the headrest further includes a headrest inner shell 18, the headrest inner shell 18 is arranged in the first accommodating groove and has a rectangular structure and extends in the second direction, a second accommodating groove is formed in the top of the headrest inner shell 18, the auxiliary locking structure is arranged in the second accommodating groove, and limiting blocks 19 are arranged at the two ends of the second accommodating groove in the second direction, a movable hole 20 is formed in the limiting block 19 in the second direction, and the limiting end of the limiting rod 3 movably penetrates the movable hole 20 in the second direction, and the limiting end is matched with the limiting hole 17;

[0067] Further, the headrest inner shell 18 is provided with a guide sliding groove 21 on each of the two side walls away from each other in the second direction, and the guide sliding groove 21 is below the limiting block 19. The headrest outer shell 15 is provided with a guide sliding rail 22 extending in the first direction on each of the two inner walls close to each other in the second direction, and the guide sliding rail 22 is slidingly arranged in the guide sliding groove 21.

[0068] Further, the headrest inner shell 18 is provided with a guide sliding groove 21 on each of the two side walls away from each other in the second direction, and the guide sliding groove 21 is below the limiting block 19. The headrest outer shell 15 is provided with a guide sliding rail 22 extending in the first direction on each of the two inner walls close to each other in the second direction, and the guide sliding rail 22 is slidingly arranged in the guide sliding groove 21. Figure 1 The third direction is a vertical direction, and the third direction is perpendicular to the first direction and perpendicular to the second direction.

[0069] Further, optionally, the driving mechanism includes two air bags 25, and the two air bags 25 are arranged on the two side walls of the headrest inner shell 18 away from each other in the first direction, and the two air bags 25 are respectively connected to an external air source to realize inflation and deflation.

[0070] Optionally, the driving mechanism includes one air bag 25 and one spring, and the air bag 25 and the spring are arranged on the two side walls of the headrest inner shell 18 away from each other in the first direction, and the air bag 25 is connected to an external air source to realize inflation and deflation.

[0071] Optionally, the adjustable seat device can also be a leg support, and the leg support is provided with a limiting hole 17. After the leg support is adjusted to a position, the limiting rod 3 extends into the limiting hole 17 to lock and limit the leg support, increase the stability of the leg support after adjustment, and ensure the comfort of sitting.

[0072] Working principle: when the headrest needs to be adjusted, first make the two movable parts close to each other, move the two movable parts from the first set position to the second set position, drive the two limiting rods 3 to close to each other, and the limiting end is away from the limiting hole 17, and the locking and limiting of the headrest is released. Through the two external air sources, inflation and deflation operations are performed on the two air bags 25 respectively, that is, when the headrest needs to move in the first direction, the air bag 25 close to the moving direction of the headrest is inflated, and the other air bag 25 is deflated, so that the inflated air bag 25 can push the headrest to move. Under the sliding cooperation of the guide sliding rail 22 and the guide sliding groove 21, the headrest can move stably. When the headrest moves to a suitable position, make the two movable parts away from each other, drive the two limiting rods 3 to move away from each other, so that the limiting end extends into the limiting hole 17, and the locking and limiting of the headrest is realized.

[0073] It should be noted that if only the air bag 25 is used to fix the position of the adjustable seat device, the air bag 25 may slowly leak air during long-term storage of the gas, or be easily damaged when impacted, causing the position of the adjustable seat device to move unexpectedly, so the auxiliary locking structure is provided to improve the stability of the adjustable seat device, which can stably support the head and neck of the human body, avoiding injury to the human body.

[0074] The above description is merely preferred embodiments of the present application and a description of the principles of the technology used. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the present application (but not limited to).

Claims

1. An auxiliary locking structure applied to an adjustable seat device, the adjustable seat device being moved in a first direction by a driving mechanism, the auxiliary locking structure being provided inside the adjustable seat device and being communicated with an external air supply assembly for improving fixing stability of the adjustable seat device after the adjustable seat device is moved, characterized in that, The auxiliary locking structure comprises: A fixed shell (1) is internally provided with a containing space, which is communicated with the external air source assembly; Two movable parts are symmetrically movably arranged in the containing space, and the ends of the two movable parts away from each other extend to the outside of the containing space, the containing space is filled with air or discharged through the external air source assembly, and a reset assembly is arranged to drive the movable parts to move; The movable part has a first state, a second state and a third state, when the movable part is in the first state, the two movable parts are away from each other and are in a first set position, when the movable part is in the second state, the two movable parts are close to each other and are in a second set position, and when the movable part is in the third state, the two movable parts are simultaneously moved from the second set position to the first set position in the direction away from each other.

2. The auxiliary lock structure according to claim 1, characterized by The movable part comprises a piston assembly movably arranged in the containing space, and the containing space is divided into a first driving space (28) and a first driven space (29), the first driving space (28) and the first driven space (29) are not communicated with each other, and the first driving space (28) is communicated with the external air source assembly; When the movable part is in the first state, the first driving space (28) is discharged through the external air source assembly, the two movable parts are away from each other, and are in the first set position; When the movable part is in the second state, the first driving space (28) is filled with air through the external air source assembly, and the two movable parts are simultaneously moved to the second set position in the direction close to each other; When the movable part is in the third state, the first driving space (28) is discharged through the external air source assembly, the two movable parts are simultaneously moved in the direction away from each other, and are simultaneously moved to the first set position through the reset assembly; Or, the piston assembly divides the containing space into a second driving space (30) and a second driven space (31), the second driving space (30) and the second driven space (31) are not communicated with each other, and the second driving space (30) is communicated with the external air source assembly; When the movable part is in the first state, the second driving space (30) is filled with air through the external air source assembly, the two movable parts are away from each other, and are in the first set position; When the movable part is in the second state, the second driving space (30) is discharged through the external air source assembly, and the two movable parts are simultaneously moved to the second set position in the direction close to each other through the reset assembly; When the movable part is in the third state, the second driving space (30) is filled with air through the external air source assembly, and the two movable parts are simultaneously moved in the direction away from each other, and are in the first set position.

3. The auxiliary lock structure according to claim 2, characterized in that, The fixed shell (1) is provided with a through opening (32) on each of the two opposite side walls in the second direction, the through opening (32) is provided with a fixed block (4), and the fixed block (4) is provided with a movable opening in the second direction, and the two ends of the movable opening are communicated with the accommodating space and the outside of the fixed shell (1), respectively; the second direction is perpendicular to the first direction.

4. The auxiliary lock structure according to claim 3, characterized in that, The piston assembly comprises a movable block (5) movably arranged in the accommodating space, and the movable block (5) is provided with a through opening in the second direction, and the movable block (5) is provided with a first sealing ring (6) and a wear-resistant ring (7) arranged in the second direction on the circumferential side wall of the movable block (5), and the first sealing ring (6) is relatively close to the other movable block (5).

5. The auxiliary lock structure according to claim 4, characterized in that, The movable part further comprises a piston rod (8) extending in the second direction, and one end of the piston rod (8) extends to the outside of the fixed shell (1) through the through opening and the movable opening in the second direction and is connected with a connecting block (2), and the side wall of the connecting block (2) away from the piston rod (8) is connected with a limiting rod (3) extending in the second direction.

6. The auxiliary lock structure according to claim 5, wherein The reset assembly comprises a magnet (10) fixedly arranged in the accommodating space and located between the two movable parts, and one end of the piston rod (8) located in the accommodating space is provided with a magnetic ring (9), and the magnetic poles at the two ends of the magnet (10) in the second direction are the same as the magnetic poles of the magnetic ring (9) corresponding to the magnet (10).

7. The auxiliary lock structure according to claim 5, wherein The reset assembly comprises a first elastic member (11) arranged in the accommodating space and located between the two movable parts, and the two ends of the first elastic member (11) in the second direction are fixedly connected with one end of the two piston rods (8) close to each other.

8. The auxiliary lock structure according to claim 5, wherein The reset assembly comprises a second elastic member (12), and the second elastic member (12) is arranged on the piston rod (8), and the two ends of the second elastic member (12) are fixedly connected with the fixed block (4) and the movable block (5).

9. The auxiliary lock structure according to claim 5, wherein The reset assembly comprises a third elastic member (13) arranged in the accommodating space and located between the two movable parts, and the two ends of the third elastic member (13) in the second direction are fixedly connected with one end of the two piston rods (8) close to each other.

10. An adjustable seating device, characterized by, The adjustable seat device comprises the auxiliary locking structure according to any one of claims 1-9, and at least one air bag (25) is arranged in the adjustable seat device, and the air bag (25) is connected with an external air source assembly to drive the adjustable seat device to move in the first direction. A plurality of limiting holes (17) are arranged on the inner wall of the adjustable seat device in the first direction, and the limiting holes (17) are matched with one end of the limiting rod (3) away from the connecting block (2).

Images