Armrest lock mechanism with hovering function, seat and vehicle

Abstract

The utility model provides an armrest lock mechanism with a hovering function, a seat and a vehicle, the armrest lock mechanism comprises an armrest lock (1), the armrest lock comprises a fixed part, a rotating part and an armrest shaft (103), the fixed part is provided with a mounting cavity (A), the armrest shaft is connected with the rotating part, part of the armrest shaft (103) is located in the mounting cavity (A), and the fixed part and the rotating part are in axial limiting connection. The rotating part can rotate relative to the fixed part and is relatively locked with the fixed part when rotating to a preset position, the damping hovering assembly (3) is installed inside the installation cavity (A) and is in a compressed state in the axial direction, the damping hovering assembly (3) is sleeved with the handrail shaft (103), and at least part of the damping hovering assembly (3) is connected with the handrail shaft (103) in an anti-torque mode. Hover of the seat armrest is achieved through the damping hovering assembly, and the stability of the seat armrest is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile seats, and in particular to an armrest lock mechanism with a hovering function, a seat, and a vehicle. Background Art

[0002] Armrests are functional seat accessories, typically located on the side of the seat, providing support for the passenger's hands and offering a swivel adjustment function to enhance ride comfort. However, many current armrests lack a hovering function. Vehicle vibrations or collisions with passengers can cause them to automatically rotate downward, compromising comfort and potentially causing injury to the passenger. Utility Model Content

[0003] The purpose of this application is to provide an armrest lock mechanism, a seat and a vehicle with a hovering function, so as to realize the hovering of the seat armrest, improve the stability of the seat armrest and enhance the comfort of use.

[0004] To solve the above technical problems, the present application provides an armrest lock mechanism with a hovering function, comprising an armrest lock, wherein the armrest lock comprises a fixed member, a rotating member, and an armrest shaft, wherein the fixed member has a mounting cavity, the armrest shaft is connected to the rotating member, and a portion of the armrest shaft is located inside the mounting cavity, the fixed member and the rotating member are axially limitedly connected, the rotating member can rotate relative to the fixed member, and is locked relative to the fixed member when rotated to a preset position;

[0005] It also includes a damping suspension component, which is installed inside the installation cavity and is in a compressed state along the axial direction. The damping suspension component is sleeved on the armrest shaft, and at least part of the damping suspension component is torsionally connected to the armrest shaft.

[0006] The armrest lock mechanism of the present application has a hovering function and is additionally provided with a damping hovering component. The damping hovering component is installed inside the mounting cavity and is in a compressed state along the axial direction. The fixing part can apply a damping force to the damping hovering component. When the seat armrest is in the storage position and tends to move downward due to vehicle vibration or passenger collision, the structure in the damping hovering component that is torsionally connected to the armrest shaft tends to rotate together with the armrest shaft, and the damping force applied by the fixing part will hinder the rotation of the structure in the damping hovering component that is torsionally connected to the armrest shaft, thereby preventing the seat armrest from moving downward, improving the stability of the seat armrest, and improving the comfort of use; when the passenger adjusts the position of the seat armrest downward, the damping hovering component is axially squeezed by the fixing part, and a large friction torque will be generated during rotation, thereby enabling the seat armrest to hover, slowing down the falling speed of the seat armrest, so that the seat armrest can be stably maintained in the desired position, improving the comfort of use.

[0007] Optionally, the damping suspension assembly includes a damping spring plate and a driving plate, the damping spring plate and the driving plate are arranged along the axial direction of the armrest shaft, the driving plate is torsionally connected to the armrest shaft, and the damping spring plate is in a compressed state along the axial direction.

[0008] Optionally, the fixing member includes a fixing member body and a transition plate, the fixing member body and the rotating member are axially limitedly connected, and the transition plate is connected to a side of the fixing member body facing away from the rotating member;

[0009] The driving plate is closer to the transition plate than the damping spring plate, and the driving plate presses the transition plate under the elastic force of the damping spring plate.

[0010] Optionally, the damping suspension assembly includes a damping spring sheet, the damping spring sheet is in a compressed state along the axial direction, and the damping spring sheet is torsionally connected to the armrest shaft.

[0011] Optionally, at least part of the damping suspension assembly is provided with one of a protrusion and a recessed portion, and the armrest shaft is provided with the other of the protrusion and the recessed portion, and the protrusion and the recessed portion are plug-fitted together to achieve a torsional-resistant connection between the damping suspension assembly and the armrest shaft.

[0012] Optionally, the cross-sectional area of ​​the installation cavity is not less than the cross-sectional area of ​​the damping suspension assembly, and the depth of the installation cavity is less than the thickness of the damping suspension assembly in a natural state.

[0013] Optionally, the transition plate has a bulge protruding away from one end of the fixing member body, a mounting portion is formed inside the bulge, and the mounting portion forms the mounting cavity.

[0014] Optionally, a bushing is further included, wherein the bushing portion is located inside the mounting cavity, the bushing axially faces the side wall of the transition plate and contacts the transition plate, and the bushing axially faces away from the side wall of the transition plate and contacts the damping suspension assembly.

[0015] The present application also provides a seat, including a seat back, the seat back including a backrest frame, a seat armrest, and the aforementioned armrest lock mechanism with a hovering function, a fixing member connected to the backrest frame, and the seat armrest connected to the armrest shaft.

[0016] The seat of the present application includes the aforementioned armrest lock mechanism with a hovering function, and therefore has the same technical effect as the aforementioned armrest lock mechanism with a hovering function, which will not be repeated here.

[0017] The present application also provides a vehicle comprising the aforementioned seat.

[0018] The vehicle of the present application includes the aforementioned seat, and therefore has the same technical effects as the aforementioned seat, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A split diagram of a specific embodiment of the armrest lock mechanism with a hovering function provided by this application;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the armrest lock mechanism when the armrest lock is in a split state;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the armrest lock in the initial position of the armrest lock mechanism;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the armrest lock in the first working section of the armrest lock mechanism;

[0023] Figure 5 for Figure 1 A schematic diagram of the structure of the armrest lock in the second working section of the armrest lock mechanism;

[0024] Figure 6 for Figure 1 Schematic diagram of the structure of the slide plate and the components installed on the slide plate in the armrest lock mechanism;

[0025] Figure 7 for Figure 1 Diagram showing the armrest in different positions when the armrest lock mechanism is applied to the seat;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the slide plate, retaining spring and locking cam assembly in the armrest lock mechanism;

[0027] Figure 9 for Figure 1 Schematic diagram of the separate structure of the return spring, locking cam assembly and armrest shaft in the armrest lock mechanism;

[0028] Figure 10 for Figure 1 Axial cross-sectional view of the armrest lock mechanism;

[0029] Figure 11 for Figure 1 Structural diagram of the armrest lock in the armrest lock mechanism;

[0030] Figure 12 for Figure 11 Split diagram of the armrest lock;

[0031] in, Figures 1-12 The reference numerals in the figures are as follows:

[0032] 1-armrest lock; 100-ratchet; 1001-inner teeth; 1002-concave section; 1003-convex section; 101-slide plate; 102-return spring; 1021-external hook; 103-armrest shaft; 103a-ring groove; 104-slider; 1041-first protrusion; 1042-external teeth; 105-locking block; 1051-second protrusion; 106-holding spring; 107-unlocking block; 108-hook; 108a-groove; 109-locking cam; 110-camshaft sleeve; 110a-locking cam connecting hole; 110b-return spring connecting hole; 111-connecting boss; 112-sheath; 113-half-punch boss; 114-countersunk hole; 115-elastic retaining spring;

[0033] 2-transition plate; 200-convex hull; 200a-mounting portion; 200b-positioning hole;

[0034] A-installation cavity;

[0035] 3-damping hovering assembly; 300-damping spring sheet; 301-driving sheet;

[0036] 4-Bushing;

[0037] a-convex part; b-concave part;

[0038] 001-Backrest frame; 002-Seat armrest. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Before introducing the hovering function of the armrest lock mechanism of this embodiment, it is first necessary to understand the specific structure and working principle of the armrest lock in the armrest lock mechanism of this embodiment.

[0041] Please refer to Figures 1-9 , Figure 1 A split diagram of a specific embodiment of the armrest lock mechanism with a hovering function provided by this application; Figure 2 for Figure 1 A schematic diagram of the structure of the armrest lock mechanism when the armrest lock is in a split state; Figure 3 for Figure 1 A schematic diagram of the structure of the armrest lock in the initial position of the armrest lock mechanism; Figure 4 for Figure 1 A schematic diagram of the structure of the armrest lock in the first working section of the armrest lock mechanism; Figure 5 for Figure 1 A schematic diagram of the structure of the armrest lock in the second working section of the armrest lock mechanism; Figure 6 for Figure 1Schematic diagram of the structure of the slide plate and the components installed on the slide plate in the armrest lock mechanism; Figure 7 for Figure 1 Diagram showing the armrest in different positions when the armrest lock mechanism is applied to the seat; Figure 8 for Figure 1 Schematic diagram of the structure of the slide plate, return spring and locking cam assembly in the armrest lock mechanism; Figure 9 for Figure 1 Schematic diagram of the split structure of the return spring, locking cam assembly, and armrest shaft in the armrest lock mechanism.

[0042] In this embodiment, the armrest lock 1 specifically includes:

[0043] The ratchet 100 is used to connect the backrest frame 001 of the seat back. The ratchet 100 has inner teeth 1001. The inner periphery of the ratchet 100 has a smoothly connected concave section 1002 and a convex section 1003. Figure 3 It can be seen that the raised section 1003 is raised radially inward;

[0044] The slide plate 101, the locking cam assembly, the return spring 102 and the armrest shaft 103. The slide plate 101 is provided with a first slide groove extending in the radial direction. The locking cam assembly is connected to the armrest shaft 103. The armrest shaft 103 is used to connect to the seat armrest 002. The return spring 102 connects the slide plate 101 and the locking cam assembly, and the return spring 102 is in a pre-tensioned state.

[0045] Slider 104, locking block 105, holding spring 106 and unlocking block 107, slider 104 is slidably installed in the first slide groove, slider 104 is provided with a first protrusion 1041, the outer peripheral wall of slider 104 is provided with external teeth 1042, the locking cam assembly and slider 104 have a first matching surface for sliding fit, in the initial position of the armrest lock mechanism, as shown Figure 3 As shown, the first convex portion 1041 is located in the concave section 1002 , and the outer teeth 1042 are meshed with the inner teeth 1001 ;

[0046] The armrest lock mechanism has a first working section and a second working section. The first working section takes the initial position as the starting point. In the first working section, the seat armrest 002 can only rotate in one direction. The slider 104 can slide along the profile of the inner teeth 1001 under the side effect of the locking cam assembly and the helical gear, and gradually approach the raised section 1003. Figure 4 As shown;

[0047] In the second working section, the first protrusion 1041 abuts against the protruding section 1003, and the locking block 105 can at least lock the locking cam assembly and the slide plate 101 along the locking direction under the action of the retaining spring 106. There is a gap between the outer teeth 1042 and the inner teeth 1001, and the seat armrest 002 can rotate in both directions. The locking direction is the direction in which the outer teeth 1042 and the inner teeth 1001 re-engage, as shown in FIG. Figure 5 As shown;

[0048] A second protrusion 1051 is provided on the locking block 105, and the second protrusion 1051 has a first contour, and the unlocking block 107 has a second contour. When the armrest lock mechanism is in the second working section and rotates to a preset position in the direction close to the initial position, the first contour and the second contour gradually contact and slide together, and the unlocking block 107 pushes the locking block 105 to move in the direction away from the locking cam assembly until the locking block 105 and the locking cam assembly are disengaged, unlocking the slide plate 101 and the locking cam assembly, so that the armrest lock 1 can return to the initial position.

[0049] The armrest lock 1 is developed based on the traditional car seat recliner structure. When applied to a seat, it can realize one-way adjustment of the seat armrest 002 within a specific area, and can release the one-way adjustment after adjusting to the specific area so that it can return to its original position, restoring the one-way adjustment function.

[0050] like Figure 6 As shown, in this embodiment, the slide plate 101 is provided with a hook portion 108, the hook portion 108 has a groove 108a with an opening toward the center of the slide plate 101, the middle part of the return spring 102 is fixedly mounted on the locking cam assembly, and the outer hook 1021 of the return spring is clamped in the groove 108a to realize the connection between the return spring 102 and the slide plate 101 and the locking cam assembly.

[0051] like Figure 9 As shown, in this embodiment, the locking cam assembly includes a locking cam 109 and a camshaft sleeve 110, the locking cam 109 and the armrest shaft 103 are spline-connected, one of the side walls of the locking cam 109 is provided with a connecting boss 111, and the camshaft sleeve 110 is correspondingly provided with a locking cam connecting hole 110a; the connecting boss 111 and the locking cam connecting hole 110a are correspondingly plug-fitted, thereby realizing the relative fixation of the locking cam 109 and the camshaft sleeve 110, so that the two can rotate synchronously, and the camshaft sleeve 110 has a return spring connecting hole 110b; the inner hook of the return spring 102 is connected to the inside of the return spring connecting hole 110b.

[0052] like Figure 2 As shown, the armrest lock 1 also includes a sheath 112, which has a step surface inside. The ratchet 100 is movably installed inside the sheath 112, and the slide plate 101 is fixedly installed inside the sheath 112. The ratchet 100 is located between the step surface and the slide plate 101, so that the axial positions of the ratchet 100 and the slide plate 101 are relatively fixed, preventing the ratchet 100 and the slide plate 101 from detaching.

[0053] As mentioned above, the armrest lock 1 has a first working section and a second working section, and the seat armrest 002 also has a first adjustment section A1 and a second adjustment section A2. Figure 7 It is understood that when the armrest lock 1 is in the first working section, the seat armrest 002 is in the first adjustment section A1, and when the armrest lock 1 is in the second working section, the seat armrest 002 is in the second adjustment section A2. Figure 7 The direction indicated by the solid arrow is the rotation direction of the seat armrest 002 in the first adjustment section A1, and the direction indicated by the dotted arrow is the rotation direction of the seat armrest 002 in the second adjustment section A2, wherein:

[0054] The starting point of the first adjustment section A1 is the lowest usage position of the seat armrest 002. In the first adjustment section A1, the seat armrest 002 can only be lifted upwards.

[0055] In the second adjustment section A2, the seat armrest 002 can be lifted up to the storage position, and can also be pressed down until it returns to the lowest usage position of the seat armrest 002. At this time, the seat armrest 002 resumes the one-way adjustment state and switches to the first adjustment section A1.

[0056] It can be seen that the storage position of the seat armrest 002 is approximately flush with the seat back 001. At this time, the seat armrest 002 is only squeezed by the seat cover to maintain it in the storage position. It has poor stability and is easy to fall down during the vibration of the vehicle.

[0057] Based on this, this embodiment provides an armrest lock mechanism with a hovering function, which can maintain the stability of the seat armrest 002 in the storage position and prevent it from falling during the vibration of the vehicle. The armrest lock mechanism with a hovering function in this embodiment is introduced in detail below.

[0058] Please continue to refer to Figure 1 , Figure 2 and Figure 10 , Figure 10 for Figure 1 Axial cross-section of the armrest lock mechanism.

[0059] This embodiment provides an armrest lock mechanism with a hovering function, including an armrest lock 1. The armrest lock 1 includes a fixed member, a rotating member, and an armrest shaft 103. The fixed member has a mounting cavity A. The armrest shaft 103 is connected to the rotating member, and a portion of the armrest shaft 103 is located within the mounting cavity A. The fixed member and the rotating member are axially limitedly connected. The rotating member can rotate relative to the fixed member and is locked relative to the fixed member when rotated to a preset position.

[0060] It also includes a damping suspension component 3, which is installed inside the installation cavity A and is in a compressed state along the axial direction. The damping suspension component 3 is mounted on the armrest shaft 103, and at least part of the damping suspension component 3 is torsionally connected to the armrest shaft 103.

[0061] In this embodiment, the armrest lock mechanism with a hovering function is additionally provided with a damping hovering assembly 3. The damping hovering assembly 3 is installed inside the installation cavity A and is in a compressed state along the axial direction. The fixing member can apply a damping force to the damping hovering assembly 3. When the seat armrest 002 is in the storage position and tends to move downward due to reasons such as vehicle vibration or passenger collision, the structure in the damping hovering assembly 3 that is torsionally connected to the armrest shaft 103 tends to rotate together with the armrest shaft 103, and the damping force applied by the fixing member will hinder the rotation of the structure in the damping hovering assembly 3 that is torsionally connected to the armrest shaft 103, thereby preventing the seat armrest 002 from moving downward, improving the stability of the seat armrest 002, and enhancing the user comfort; when the passenger adjusts the position of the seat armrest 002 downward, the damping hovering assembly 3 is axially squeezed by the fixing member, and a large friction torque is generated during rotation, thereby achieving the hovering of the seat armrest 002, slowing down the falling speed of the seat armrest 002, so that the seat armrest 002 can be stably maintained in the desired position, improving the user comfort.

[0062] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the damping suspension assembly 3 includes a damping spring sheet 300 and a driving sheet 301. The damping spring sheet 300 and the driving sheet 301 are arranged along the axial direction of the armrest shaft 103. The driving sheet 301 is torsionally connected to the armrest shaft 103, and the damping spring sheet 300 is in a compressed state along the axial direction.

[0063] The drive plate 301 is torsionally connected to the armrest shaft 103, i.e., the drive plate 301 and the armrest shaft 103 are circumferentially limited, allowing them to rotate synchronously. The damping spring plate 300 is axially compressed, so that the end wall in the mounting cavity A that contacts the drive plate 301 and the damping spring plate 300 jointly apply a damping force to the drive plate 301. When the seat armrest 002 tends to move downward, the drive plate 301 and the armrest shaft 103 tend to rotate synchronously. The damping force applied to the drive plate 301 hinders the rotation of the drive plate 301, thereby preventing the seat armrest 002 from moving downward, improving the stability of the seat armrest 002 and enhancing user comfort. When the passenger adjusts the position of the seat armrest 002 downward, the drive plate 301 is axially squeezed and generates a large friction torque during rotation, achieving the hovering of the seat armrest 002, slowing the falling speed of the seat armrest 002, and allowing the seat armrest 002 to remain stably in the desired position.

[0064] In this embodiment, the fixing part includes a fixing part body and a transition plate 2. The fixing part body and the rotating part are axially limitedly connected. The transition plate 2 is connected to the side of the fixing part body facing away from the rotating part. The fixing part body and the transition plate 2 enclose an installation cavity A.

[0065] As can be seen from the foregoing, the fixed member body referred to here is the ratchet 100, and the rotating member is the slide plate 101, the locking cam assembly, and other structures mounted on the slide plate 101. In this embodiment, the fixed member adopts a separate structure consisting of the fixed member body and the transition plate 2. During assembly, the damping and hovering assembly 3 can be first mounted on the handrail shaft 103, and then the transition plate 2 is connected to the ratchet 100. The damping and hovering assembly 3 can be press-fitted between the transition plate 2 and the ratchet 100, making assembly more convenient and improving assembly efficiency.

[0066] In this embodiment, the driving plate 301 is closer to the transition plate 2 than the damping spring plate 300. The end of the damping spring plate 300 away from the driving plate 301 contacts the fixing body. The driving plate 301 presses the transition plate 2 under the elastic force of the damping spring plate 300. The damping spring plate 300 and the transition plate 2 can apply damping force to the driving plate 301.

[0067] In some other embodiments of the present application, it is also feasible that the driving plate 301 is closer to the fixing body than the damping spring plate 300. At this time, the end of the damping spring plate 300 away from the driving plate 301 contacts the transition plate 2, and the driving plate 301 is pressed against the fixing body under the elastic force of the damping spring plate 300, and the damping spring plate 300 and the fixing body apply a damping force to the driving plate 301.

[0068] In some other embodiments of the present application, the damping suspension assembly 3 includes a damping spring sheet 300 , which is in a compressed state along the axial direction and is torsionally connected to the armrest shaft 103 .

[0069] The damping spring piece 300 is torsionally connected to the armrest shaft 103 , that is, the damping spring piece 300 and the armrest shaft 103 are circumferentially limited so that the two can rotate synchronously. In this embodiment, the damping suspension component 3 is not provided with a driving plate 301. The axial ends of the damping spring plate 300 are in conflict with the corresponding end walls of the installation cavity A, thereby applying a damping force to the damping spring plate 300. When the seat armrest 002 tends to move downward, the damping spring plate 300 and the armrest shaft 103 tend to rotate synchronously. The damping force applied by the fixing member to the damping spring plate 300 will hinder the rotation of the damping spring plate 300, thereby preventing the seat armrest 002 from moving downward, improving the stability of the seat armrest 002, and improving the comfort of use; when the passenger adjusts the position of the seat armrest 002 downward, the damping force applied by the fixing member to the damping spring plate 300 can also realize the suspension of the seat armrest 002, slowing down the falling speed of the seat armrest 002, so that the seat armrest 002 can be stably maintained in the desired position.

[0070] It can be seen that in this embodiment, the damping suspension assembly 3 is no longer provided with a driving plate 301 , which reduces the number of parts of the damping suspension assembly 3 , simplifies the structure of the damping suspension assembly 3 , and reduces the cost.

[0071] Furthermore, in this embodiment, the inner peripheral wall of at least part of the damping suspension assembly 3 is provided with one of the protrusion a and the recessed portion b, and the outer peripheral wall of the armrest shaft 103 is provided with the other of the protrusion a and the recessed portion b, and the protrusion a and the recessed portion b are plug-fitted to achieve a torsional-resistant connection between the damping suspension assembly 3 and the armrest shaft 103.

[0072] Among them, Figure 1 In the embodiment shown, the inner peripheral wall of the driving plate 301 is provided with a protrusion a, and the outer peripheral wall of the armrest shaft 103 is provided with a recessed portion b. The recessed portion b extends along the axial direction of the armrest shaft 103 and passes through the end of the armrest shaft 103. The shapes of the protrusion a and the recessed portion b match. During installation, the protrusion a can enter the interior of the recessed portion b from the end of the armrest shaft 103, thereby realizing a torsion-resistant connection between the driving plate 301 and the armrest shaft 103. The connection method is simple and the connection is reliable.

[0073] Depend on Figure 1 and Figure 2 As can be seen, in this embodiment, the inner circumferential wall of the drive plate 301 is provided with two raised portions a, which are arranged radially opposite each other. The outer circumferential wall of the armrest shaft 103 is provided with two recessed portions b, which are inserted and fitted into the corresponding recessed portions b. In this way, the drive plate 301 and the armrest shaft 103 are connected to each other in a torsion-resistant manner through the insertion and fit of the two sets of raised portions a and recessed portions b, further improving the reliability of the connection between the drive plate 301 and the armrest shaft 103.

[0074] In practice, the inner circumferential wall of the drive plate 301 may be provided with at least one raised portion a, and the outer circumferential wall of the armrest shaft 103 may be provided with at least one recessed portion b. When the inner circumferential wall of the drive plate 301 is provided with a raised portion a, and the outer circumferential wall of the armrest shaft 103 is provided with a recessed portion b, while ensuring the reliability of the connection between the drive plate 301 and the armrest shaft 103, the processing steps of the drive plate 301 and the armrest shaft 103 are simplified, thereby improving the molding efficiency of the drive plate 301 and the armrest shaft 103.

[0075] In addition, in practice, the torsion-resistant connection between the damping suspension assembly 3 and the armrest shaft 103 can be realized in a variety of ways, such as providing a recessed portion b on the inner peripheral wall of the driving plate 301, the recessed portion b axially passing through the driving plate 301, and providing a raised portion a on the outer peripheral wall of the armrest shaft 103, the raised portion a extending axially along the armrest shaft 103.

[0076] In an embodiment in which the damping suspension assembly 3 is not provided with a drive plate 301, the inner peripheral wall of the damping spring plate 300 is provided with one of the protrusion a and the recessed portion b, and the outer peripheral wall of the armrest shaft 103 is provided with the other of the protrusion a and the recessed portion b. The protrusion a and the recessed portion b are plugged into each other to achieve a torsional-resistant connection between the damping spring plate 300 and the armrest shaft 103.

[0077] As mentioned above, the damping suspension assembly 3 is installed inside the installation cavity A and is in a compressed state along the axial direction. Therefore, in this embodiment, the cross-sectional area of ​​the installation cavity A is not less than the cross-sectional area of ​​the damping suspension assembly 3, ensuring that the installation cavity A has sufficient space in the lateral direction to accommodate the damping suspension assembly 3; at the same time, the depth of the installation cavity A is less than the thickness of the damping suspension assembly 3 in the natural state, so that when the transition plate 2 and the fixing body are fixedly connected, the damping suspension assembly 3 is compressed along the axial direction, ensuring that the transition plate 2 and the damping suspension assembly 3, and the fixing body and the damping suspension assembly 3 can be tightly fitted, thereby ensuring the reliable realization of the hovering function.

[0078] In addition, as can be seen from the foregoing, in some embodiments of the present application, the damping suspension assembly 3 includes at least a damping spring sheet 300. By adjusting the stiffness coefficient of the damping spring sheet 300, the magnitude of the damping force can be adjusted, thereby ensuring the smoothness of the position adjustment of the seat armrest 002 and achieving the suspension of the seat armrest 002.

[0079] Please continue to refer to Figure 10 In this embodiment, the transition plate 2 has a convex bulge 200 protruding away from one end of the fixing member body, and a mounting portion 200a is formed inside the convex bulge 200. The mounting portion 200a forms a mounting cavity A for accommodating the damping suspension assembly 3.

[0080] It can be seen that in this embodiment, the mounting portion 200a is formed on the transition plate 2, which facilitates processing and improves processing efficiency.

[0081] Please continue to refer to Figure 10 In this embodiment, the armrest lock mechanism also includes a bushing 4, which is partially located inside the installation cavity A. The bushing 4 axially faces the side wall of the transition plate 2 and contacts the transition plate 2, and the bushing 4 axially faces the side wall of the transition plate 2 and contacts the damping suspension assembly 3.

[0082] Specifically, the transition plate 2 has an axially through-hole, and the bushing 4 is roughly L-shaped. The bushing 4 is partially located inside the through-hole, and the armrest shaft 103 passes through the inside of the bushing 4. The bushing 4 eliminates the installation gap of the armrest shaft 103, improves the installation stability of the armrest shaft 103, and at the same time, reduces the processing difficulty of the armrest shaft 103 and the through-hole, and improves the processing efficiency. The bushing 4 has a folded portion at the end close to the armrest lock 1, and the folded portion is located inside the installation cavity A. On the one hand, the folded portion can play an axial limiting role on the bushing 4. During installation, the bushing 4 is inserted into the through-hole from the end close to the armrest lock 1. When the folded portion conflicts with the end wall of the installation cavity A, the bushing 4 is located in the preset installation position; on the other hand, the bushing 4 conflicts with the side wall of the damping suspension component 3 axially facing away from the transition plate 2, specifically Figure 10In the embodiment shown, the bushing 4 axially contacts the side wall of the transition plate 2 and the drive plate 301. Since the bushing 4 is usually made of plastic, when the drive plate 301 rotates with the armrest shaft 103, the rotational noise can be reduced and the riding comfort can be improved.

[0083] Please continue to refer to Figure 1 and Figure 2 In this embodiment, two half-punched bosses 113 are provided on the side wall of the fixing body facing the transition plate 2, and two positioning holes 200b are correspondingly provided on the transition plate 2. The shape of the positioning hole 200b is consistent with the shape of the half-punched boss 113. The half-punched boss 113 is inserted into the corresponding positioning hole 200b to realize the positioning of the fixing body and the transition plate 2, which is convenient for the subsequent fixation of the two. Since the fixing body and the transition plate 2 need to withstand the axial restoring force of the damping suspension assembly 3, in this embodiment, the fixing body and the transition plate 2 are fixed by welding, and the connection is reliable.

[0084] Of course, in practice, there is no limit to the number of half-punched bosses 113 provided on the fixing body, and there is no limit to the number of positioning holes 200b provided on the transition plate 2. For example, the number of half-punched bosses 113 provided on the fixing body can be more than two, and the number of positioning holes 200b provided on the transition plate 2 can also be more than two, both of which can achieve the positioning effect of the fixing body and the transition plate 2.

[0085] In this embodiment, the fixing body is provided with two half-punched bosses 113, and the transition plate 2 is provided with two positioning holes 200b. While ensuring the reliable positioning of the fixing body and the transition plate 2, the positioning structure is simplified, the processing technology of the fixing body and the transition plate 2 is simplified, and the processing efficiency is improved.

[0086] Please refer to Figure 11-12 , Figure 11 for Figure 1 Structural diagram of the armrest lock in the armrest lock mechanism; Figure 12 for Figure 11 Split diagram of the armrest lock.

[0087] In this embodiment, a countersunk hole 114 is provided on the side wall of the fixing body facing the transition plate 2, and also includes an elastic retaining spring 115. The elastic retaining spring 115 is located inside the countersunk hole 114. Due to the external contour restriction, the elastic retaining spring 115 and the fixing body will not rotate relative to each other. The inner ring of the elastic retaining spring 115 is designed with two protrusions, and an annular groove 103a is designed on the armrest shaft 103. The distance between the two protrusions of the elastic retaining spring 115 is smaller than the diameter of the armrest shaft 103. After assembly, the two protrusions of the elastic retaining spring 115 fall into the annular groove 103a, thereby realizing axial limitation of the armrest shaft 103 and preventing the armrest shaft 103 from escaping axially.

[0088] The present application also provides a seat, including a seat back, the seat back includes a backrest frame 001, and also includes a seat armrest 002, and the aforementioned armrest lock mechanism with a hovering function, the fixing part is connected to the backrest frame 001, and the seat armrest 002 is connected to the armrest shaft 103.

[0089] The seat of the present application includes the aforementioned armrest lock mechanism with a hovering function, and therefore has the same technical effect as the aforementioned armrest lock mechanism with a hovering function, which will not be repeated here.

[0090] Among them, the fixing parts are connected to the backrest frame 001, specifically the transition plate 2 is connected to the backrest frame 001, and the transition plate 2 and the backrest frame 001 can be connected by connecting parts such as bolts; the transition plate 2 and the backrest frame 001 can also be fixed by welding or other methods.

[0091] The seat armrest 002 and the armrest shaft 103 can be fixed by welding or other methods.

[0092] The present application also provides a vehicle comprising the aforementioned seat.

[0093] The vehicle of the present application includes the aforementioned seat, and therefore has the same technical effects as the aforementioned seat, which will not be repeated here.

[0094] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An armrest lock mechanism with a hovering function, characterized in that: The armrest lock (1) comprises a fixed part, a rotating part and an armrest shaft (103), wherein the fixed part has a mounting cavity (A), the armrest shaft (103) is connected to the rotating part, and a portion of the armrest shaft (103) is located inside the mounting cavity (A), the fixed part and the rotating part are axially limitedly connected, the rotating part can rotate relative to the fixed part, and is locked relative to the fixed part when rotated to a preset position. It also includes a damping suspension component (3), which is installed inside the installation cavity (A) and is in a compressed state along the axial direction. The damping suspension component (3) is sleeved on the handrail shaft (103), and at least a portion of the damping suspension component (3) is torsionally connected to the handrail shaft (103).

2. The armrest lock mechanism with hovering function according to claim 1, characterized in that: The damping suspension assembly (3) comprises a damping spring sheet (300) and a driving sheet (301), wherein the damping spring sheet (300) and the driving sheet (301) are arranged along the axial direction of the armrest shaft (103), the driving sheet (301) is connected to the armrest shaft (103) in a torsionally anti-connected manner, and the damping spring sheet (300) is in a compressed state along the axial direction.

3. The armrest lock mechanism with hovering function according to claim 1, characterized in that: The fixing member comprises a fixing member body and a transition plate (2), the fixing member body and the rotating member are axially limitedly connected, the transition plate (2) is connected to the side of the fixing member body facing away from the rotating member, and the fixing member body and the transition plate (2) enclose the mounting cavity (A).

4. The armrest lock mechanism with hovering function according to claim 1, characterized in that: The damping suspension assembly (3) comprises a damping spring sheet (300), the damping spring sheet (300) is in a compressed state along the axial direction, and the damping spring sheet (300) is torsionally connected to the armrest shaft (103).

5. The armrest lock mechanism with a hovering function according to any one of claims 1 to 4, characterized in that: At least part of the damping suspension assembly (3) is provided with one of the raised portion (a) and the recessed portion (b), and the handrail shaft (103) is provided with the other of the raised portion (a) and the recessed portion (b), and the raised portion (a) and the recessed portion (b) are plug-fitted to achieve a torsion-resistant connection between the damping suspension assembly (3) and the handrail shaft (103).

6. The armrest lock mechanism with a hovering function according to any one of claims 1 to 4, characterized in that: The cross-sectional area of ​​the installation cavity (A) is not less than the cross-sectional area of ​​the damping suspension component (3), and the depth of the installation cavity (A) is less than the thickness of the damping suspension component (3) in a natural state.

7. The armrest lock mechanism with hovering function according to claim 3, characterized in that: The transition plate (2) has a bulge (200) extending away from one end of the fixing member body, a mounting portion (200a) is formed inside the bulge (200), and the mounting portion (200a) forms the mounting cavity (A).

8. The armrest lock mechanism with hovering function according to claim 3, characterized in that: It also includes a bushing (4), wherein a portion of the bushing (4) is located inside the mounting cavity (A), the bushing (4) faces the side wall of the transition plate (2) in the axial direction and contacts the transition plate (2), and the bushing (4) faces away from the side wall of the transition plate (2) in the axial direction and contacts the damping suspension assembly (3).

9. A seat, characterized in that: The invention comprises a seat back, the seat back comprises a backrest frame (001), a seat armrest (002), and an armrest lock mechanism with a hovering function according to any one of claims 1 to 8, a fixing member is connected to the backrest frame (001), and the seat armrest (002) is connected to an armrest shaft (103).

10. A vehicle, characterized in that: Including the seat described in claim 9.

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