Unlocking block, unlocking mechanism, armrest assembly, seat and vehicle

Abstract

The utility model discloses an unlocking block, an unlocking mechanism, an armrest assembly, a seat and a vehicle, and the unlocking block is used for the armrest assembly of the seat and comprises a main body part and a clamping part; the clamping part is connected to one side of the main body part and is suitable for being driven by the main body part to extend into a clamping groove of a locking assembly of the handrail assembly; wherein the clamping part comprises a first end and a second end which are opposite to each other, the first end is suitable for extending into the clamping groove, and the size of the clamping part in the extending direction of the clamping groove is gradually increased in the direction from the first end to the second end. The unlocking block is not prone to failure in the switching process of the locking state and the unlocking state of the armrest assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to an unlocking block, an unlocking mechanism, an armrest assembly, a seat and a vehicle. Background Art

[0002] The rear armrests of current high-end vehicle seats. At present, most vehicles have a rotatable armrest in the center of the rear seats. As the functionality of the armrests continues to increase, their structures become more and more complex and their weight continues to increase.

[0003] In order to achieve the rotation effect, the armrest assembly needs to be continuously switched between the locked and unlocked states. The existing armrest assembly is prone to failure during the process of switching between the locked and unlocked states. Utility Model Content

[0004] The utility model aims to provide an unlocking block, an unlocking mechanism, an armrest assembly, a seat and a vehicle, so as to solve the problem that the armrest assembly is prone to failure when switching between the locked and unlocked states.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In a first aspect, the utility model provides an unlocking block, which is used for an armrest assembly of a seat, comprising:

[0007] Main body;

[0008] A clamping portion, connected to one side of the main body, adapted to extend into a clamping slot of a locking assembly of the armrest assembly under the drive of the main body;

[0009] The clamping portion includes a first end and a second end opposite to each other, the first end is suitable for extending into the clamping slot, and the size of the clamping portion in the extending direction of the clamping slot gradually increases from the first end to the second end.

[0010] In one embodiment, the clamping portion includes a first transition surface and a second transition surface opposite to each other in an extending direction of the clamping slot, and at least one of the first transition surface and the second transition surface is a curved surface.

[0011] In one embodiment, the clamping portion includes a first transition surface and a second transition surface opposite to each other in an extending direction of the clamping slot, and at least one of the first transition surface and the second transition surface has an angle with a movement direction of the clamping portion extending into the clamping slot.

[0012] In one embodiment, the end surface of the clamping portion away from the main body is a first surface, the first surface is an arc surface, and the first surface extends along the circumference of the rotation axis of the main body.

[0013] In one embodiment, the unlocking block further includes a limiting portion, the limiting portion is connected to the second end, the end surface of the limiting portion facing away from the main body portion protrudes from the clamping portion, and the limiting portion is suitable for abutting against the locking assembly.

[0014] In one embodiment, the unlocking block further includes a connecting arm, which is connected to a side of the main body facing away from the engaging portion and is suitable for driving the main body to rotate so that the engaging portion extends into or out of the engaging slot.

[0015] In a second aspect, the utility model provides an unlocking mechanism, which is used for an armrest assembly of a seat, comprising:

[0016] The unlocking block as described in any one of the first aspects;

[0017] A locking assembly is provided with the card slot;

[0018] A driving component is arranged inside the armrest assembly, one end of which is connected to the unlocking block, and the driving component is used to drive the unlocking block to rotate so that the clamping portion extends into or exits the clamping slot.

[0019] In a third aspect, the utility model provides an armrest assembly, comprising the unlocking mechanism as described in the second aspect.

[0020] In one embodiment, the armrest assembly further includes a pin shaft, and the unlocking block is rotatably connected to the pin shaft.

[0021] In one embodiment, the armrest assembly further includes an elastic member, the elastic member is sleeved with the pin shaft, one end of the elastic member abuts against a main board of the armrest assembly, and the other end of the elastic member is connected to the unlocking block.

[0022] In one embodiment, the armrest assembly further includes a limit block, which is connected to a main board of the armrest assembly, and is suitable for limiting the connection arm of the unlocking block.

[0023] In a fourth aspect, the utility model provides a seat, comprising a backrest frame and an armrest assembly as described in any one of the third aspects, wherein the backrest frame is connected to the armrest assembly.

[0024] In a fifth aspect, the utility model provides a vehicle, comprising the armrest assembly as described in any one of the third aspect or the seat as described in the fourth aspect.

[0025] The unlocking block of the utility model is provided with a main body and a clamping part. The clamping part is driven by the main body to extend into the clamping slot to realize the locking of the armrest assembly, and the clamping part is withdrawn from the clamping slot to realize the unlocking of the armrest assembly. The size of the clamping part in the extending direction of the clamping slot gradually increases from the first end to the second end, so that the end face of the clamping part in contact with the clamping slot is a wedge-shaped surface, and the wedge-shaped surface plays the role of an inclined surface guide, so that the clamping part can be more easily extended into or withdrawn from the clamping slot, so that it is not easy to fail during the switching process of the locking and unlocking states of the armrest assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 is a three-dimensional diagram of a seat in one state of an embodiment;

[0028] Figure 2 is a three-dimensional diagram of a seat in another state of an embodiment;

[0029] Figure 3 is a three-dimensional diagram of a partial structure of an armrest assembly of an embodiment;

[0030] Figure 4 is an exploded view of a partial structure of an armrest assembly of an embodiment;

[0031] Figure 5 is a perspective view of an unlocking block of an embodiment;

[0032] Figure 6 is a perspective view of a locking assembly of an embodiment;

[0033] Figure 7 is a three-dimensional diagram of an unlocking state of an unlocking mechanism of an embodiment;

[0034] Figure 8 is a three-dimensional diagram of a locked state of an unlocking mechanism of an embodiment;

[0035] Fig. 9 is a three-dimensional diagram of another part of the structure of the armrest assembly of an embodiment;

[0036] Fig.10 is a stereoscopic view of an unlocking mechanism and a drive assembly of an embodiment.

[0037] Description of reference numerals:

[0038] 100-armrest assembly, 10-unlocking mechanism, 11-unlocking block, 111-main body, 1111-first mounting hole, 1112-first end surface, 112-clamping portion, 1121-first end, 1122-second end, 1123-first surface, 1124-first transition surface, 1125-second transition surface, 113-connecting arm, 1131-second mounting hole, 114-limiting portion, 115-accommodating groove, 12-locking assembly, 121-connecting rod, 1211-connecting portion, 1212-step portion, 1213-semicircular pin, 122-locking member, 1221-clamping slot, 13-driving assembly, 131-cable, 132-reset spring, 133-handle handle, 134-handle base, 135-transmission shaft, 136-adapter, 20-backrest frame, 21-first crossbeam, 22-second crossbeam, 23-connecting plate, 24-first side plate, 30-support frame, 31-first bracket, 311-main board, 312-positioning plate, 3121-positioning bolt column, 3122-positioning bolt, 313-pin shaft, 314-positioning cross column, 315-first bushing, 316-sleeve, 317-second bushing, 318-buckle, 319-transmission bolt, 32-second bracket, 321-armrest cover, 322-screen panel, 323-armrest cover opening handle mechanism, 33-elastic member, 34-limiting block, 200-seat, X-first direction, Z-second direction, Y-third direction. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0042] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] For reference Figure 1 , Figure 2 and Figure 3 The utility model provides a seat 200, comprising a backrest frame 20 and an armrest assembly 100, wherein the backrest frame 20 is connected to a connecting rod 121 of the armrest assembly 100. The armrest assembly 100 can be in a stowed state and a use state relative to the seat 200. Figure 1 As shown, when the armrest assembly 100 is in the use position, the armrest assembly 100 extends along the first direction X. Figure 2 As shown, when the armrest assembly 100 is in the stowed position, the armrest assembly 100 extends in the third direction Y, the axial direction of the connecting rod 121 is the second direction Z, and the first direction X, the second direction Z and the third direction Y intersect each other.

[0044] For reference Figure 1 The backrest frame 20 includes a first crossbeam 21, a second crossbeam 22 and a connecting plate 23, wherein the first crossbeam 21 and the second crossbeam 22 are the main load-bearing components. The first crossbeam 21 is generally welded from a bent steel pipe or a rectangular pipe, and the second crossbeam 22 is welded from a solid steel pipe or a rectangular pipe. The connecting plate 23 is a component connecting the first crossbeam 21 and the second crossbeam 22, and is generally stamped from a steel plate. The second bracket 32 ​​in the armrest assembly 100 is away from the backrest frame 20 relative to the first bracket 31.

[0045] The backrest frame 20 also includes a first side panel 24 and a second side panel, one end of the first side panel 24 and the second side panel is fixedly connected to the connecting plate 23, and the other end is fixedly connected to the connecting rod 121. The first side panel 24 and the second side panel are generally nearly "L" shaped, and a smooth transition is made at the transition point.

[0046] One end of the connecting rod 121 is connected and fixed to the first side plate 24, and the other end is connected and fixed to the second side plate. The end surface where the connecting rod 121 is connected to the first side plate 24 is provided with a semicircular pin 1213, and the end surface where the connecting rod 121 is connected to the second side plate is circular. The first side plate 24 is provided with a semicircular pin 1213 hole corresponding to the position of the semicircular pin 1213 of the connecting rod 121, and the semicircular pin 1213 is penetrated through the semicircular pin 1213 hole, and the connecting rod 121 is connected and fixed to the first side plate 24; the second side plate is provided with a circular hole position corresponding to the circular end of the connecting rod 121, and the backrest frame 20 also includes a special-shaped gasket, a circular gasket and a fixing bolt, and the fixing bolt is penetrated through the special-shaped gasket, the circular gasket, the circular hole position and connected to the connecting rod 121 in sequence, so that the connecting rod 121 is connected and fixed to the second side plate, thereby realizing the connection and fixation of the backrest frame 20 and the connecting rod 121, and ensuring that the connecting rod 121 and the backrest frame 20 do not rotate.

[0047] Whether the armrest assembly 100 is in the use position or in the stowed position, a physical structure needs to be provided to fix and limit the armrest assembly 100, so as to fully ensure the stability of the armrest assembly 100 in the use position and the stowed position, thereby ensuring the safety of the ride and improving the comfort of the armrest assembly 100.

[0048] For reference Figures 3 to 6 The utility model provides an unlocking mechanism 10, which is used for the armrest assembly 100 of the seat 200, and includes an unlocking block 11, a locking assembly 12 and a driving assembly 13. The locking assembly 12 includes a connecting rod 121 and a locking member 122, the locking member 122 is connected to the connecting rod 121, and the locking member 122 is provided with a card slot 1221. The driving assembly 13 is arranged inside the armrest assembly 100, one end of the driving assembly 13 is connected to the connecting arm 113, and the other end is exposed to the armrest assembly 100, and the driving assembly 13 is used to drive the unlocking block 11 to rotate, so that the clamping portion 112 of the unlocking block 11 extends into or out of the card slot 1221.

[0049] like Figure 7 As shown, when the engaging portion 112 of the unlocking block 11 exits the engaging slot 1221, there is a gap between the unlocking block 11 and the locking member 122, and the unlocking mechanism 10 is unlocked; Figure 8 As shown, when the engaging portion 112 of the unlocking block 11 extends into the engaging groove 1221 , the unlocking block 11 engages with the locking member 122 , thereby completing the locking of the unlocking mechanism 10 .

[0050] For reference Figure 6 The number of the locking member 122 can be one or more, without limitation. Optionally, the number of the locking members 122 is two, which are spaced apart at both ends of the connecting rod 121.

[0051] The number of the card slots 1221 can be one or more, without limitation. The multiple card slots 1221 are arranged at intervals on the outer peripheral surface of the locking member 122. Optionally, the bottom wall of the card slot 1221 can be an arc surface or a plane. When there are multiple card slots 1221, the unlocking mechanism 10 can complete the locking state at different positions, fully ensuring the stability of the unlocking mechanism 10.

[0052] Optionally, the locking member 122 is provided with two slots 1221, and the unlocking block 11 extends into different slots 1221 to realize that the armrest assembly 100 is in different positions relative to the backrest frame 20. Specifically, when the unlocking block 11 extends into the first slot 1221, the armrest assembly 100 is in the use position; when the unlocking block 11 exits the first slot 1221 and moves toward the second slot 1221, the armrest assembly 100 changes from the use position to the stowed position; when the unlocking block 11 extends into the second slot 1221, the armrest assembly 100 is in the stowed position.

[0053] Optionally, the locking member 122 is an annular member, that is, the peripheral surface of the locking member 122 between adjacent grooves is an arc surface, which facilitates the smoothness of the switching of the unlocking mechanism 10 between the locked and unlocked states, making the unlocking mechanism 10 more comfortable to use.

[0054] The locking member 122 is connected and fixed to the connecting rod 121 , and the connection method thereof can be welding, screw connection, clamping connection, etc., without limitation.

[0055] The connecting rod 121 is provided with a connecting portion 1211 and a step portion 1212. The connecting portion 1211 is arranged at both ends of the step portion 1212. The radial dimension of the step portion 1212 is larger than the radial dimension of the connecting portion 1211. One end of the connecting portion 1211 away from the step portion 1212 abuts against the support frame 30 of the armrest assembly 100 to achieve a limiting effect and avoid the deviation of the connecting rod 121.

[0056] At least one end face of the connecting rod 121 is a square face, that is, one end of the connecting rod 121 is a semicircular pin 1213 with a straight face feature, and the semicircular pin 1213 can limit the rotation of the connecting rod 121, and is easy to install and disassemble, can withstand a large load, and can enhance the overall structural stability of the unlocking mechanism 10. Optionally, the end face of the semicircular pin 1213 of the connecting rod 121 is square, and the end face of the other end of the connecting rod 121 is circular.

[0057] For reference Fig. 9 and Fig.10 The driving assembly 13 includes a cable 131, a reset spring 132, a hand grip 133, a hand grip base 134 and a transmission shaft 135. The hand grip base 134 is provided with two first mounting holes 1111 opposite to each other, and the two ends of the transmission shaft 135 are respectively provided with the mounting holes of the hand grip base 134 and connected to the hand grip base 134. The reset spring 132 is sleeved on the transmission shaft 135. The hand grip base 134 is also provided with a second mounting hole 1131, and the second mounting hole 1131 is used to realize the installation and fixation of the hand grip base 134. The hand grip handle 133 is rotatably connected to the hand grip base 134, the cable 131 is provided with a third mounting hole on the hand grip base 134, the cable 131 is connected to the hand grip handle 133, and the hand grip handle 133 is manually operated to drive the cable 131 to move. The hand grip base 134 is connected and fixed to the support frame 30.

[0058] The buckle handle 133 is connected to one end of the cable 131 away from the unlocking block 11 for convenient operation and control of the movement of the cable 131 .

[0059] One end of the transmission shaft 135 is connected to the buckle handle 133, and the other end is connected to the cable 131 to transmit power.

[0060] The material of the cable 131 can be steel wire or steel cable, one end of the cable 131 is connected to the transmission shaft 135, and the other end is connected to the unlocking block 11. The cable 131 can convert the rotational motion of the transmission shaft 135 into linear motion, thereby remotely driving the unlocking block 11 to rotate, and realizing the clamping portion 112 to extend into or exit the clamping slot 1221.

[0061] The return spring 132 is used to provide a return force. When the external force is eliminated, the return spring 132 can return the cable 131 to its original position, thereby ensuring the normal operation and reliability of the system.

[0062] The buckle base 134 is a supporting component in the drive assembly 13, and is used to fix the buckle handle 133 and the cable 131. The buckle base 134 has a certain rigidity and stability to ensure that it will not deform or loosen during operation. Optionally, the material of the buckle base 134 can be aluminum alloy, stainless steel, high-strength plastic, etc., without limitation.

[0063] Manually pulling the buckle handle 133 of the driving assembly 13 can drive the connecting arm 113 of the unlocking block 11 to move through the pull cable 131, so that the clamping portion 112 extends into or withdraws from the clamping slot 1221, thereby realizing the switching of the unlocking and locking states of the unlocking mechanism 10.

[0064] In the unlocking mechanism 10 of the utility model, when the unlocking block 11 exits the slot 1221 of the locking member 122, the unlocking mechanism 10 is unlocked, and the armrest assembly 100 can be switched from the stowed state to the use state, or from the use state to the stowed state, until the unlocking block 11 extends into the slot 1221 again, and the unlocking block 11 abuts against the surface of the locking member 122, the unlocking mechanism 10 is locked, and the armrest assembly 100 is stationary. The unlocking mechanism 10 is simple in operation and structure to switch between the unlocking and locking states through the locking member 122 and the unlocking block 11, and the unlocking force required is small. The unlocking mechanism 10 has good stability and can meet the requirements of passengers for easy unlocking. The unlocking mechanism 10 of the utility model has a reasonable structural design and has technical advantages such as high feasibility, strong practicality, and good operation convenience.

[0065] For reference Figure 5 The utility model provides an unlocking block 11, which is used for the armrest assembly 100 of the seat 200, and includes a main body 111 and a clamping portion 112. The main body 111 is suitable for rotating around the pin 313 of the armrest assembly 100. The clamping portion 112 is connected to one side of the main body 111, and is suitable for extending into the clamping groove 1221 of the locking member 122 of the armrest assembly 100. The clamping portion 112 includes a first end 1121 and a second end 1122 opposite to each other, and the first end 1121 is suitable for extending into the clamping groove 1221. From the first end 1121 to the second end 1122, the size of the clamping portion 112 in the extension direction of the clamping groove 1221 gradually increases.

[0066] The extending direction of the locking groove 1221 is the circumferential direction of the pin shaft 313 .

[0067] The unlocking block 11 is a metal material with a certain structural strength, specifically stainless steel, aluminum alloy, etc. The unlocking block 11 has high strength and durability, can withstand frequent unlocking and locking operations, and is not easy to rust or corrode.

[0068] In one embodiment, the unlocking block 11 further includes a connecting arm 113 , which is connected to a side of the main body 111 facing away from the engaging portion 112 and is suitable for driving the main body 111 to rotate around the pin shaft 313 so that the engaging portion 112 extends into or out of the engaging slot 1221 .

[0069] The cross-sectional shape of the connecting arm 113 can be an ellipse, a square, etc., without limitation. A second mounting hole 1131 is provided on the connecting arm 113. The unlocking mechanism 10 further includes a transmission bolt 319, which passes through the second mounting hole 1131 and is connected and fixed to the connecting arm 113. The transmission bolt 319 is connected to the cable 131. The cable 131 is subjected to force to drive the transmission bolt 319 to move, so that the clamping portion 112 of the unlocking block 11 can extend into or out of the clamping slot 1221.

[0070] The unlocking block 11 can be an integrated structure, that is, the main body 111, the clamping part 112 and the connecting arm 113 are an integrated structure prepared by an integrated process, and the integrated process can specifically be casting, stamping, etc. The unlocking block 11 can also be a split structure, that is, the main body 111, the clamping part 112 and the connecting arm 113 can be connected by welding, clamping, screwing, etc., without limitation.

[0071] The cross section of the main body 111 may be circular. A first mounting hole 1111 is opened on the main body 111 . The pin 313 passes through the first mounting hole 1111 . The main body 111 is rotatably connected to the pin 313 .

[0072] For reference Figure 3 , the cable 131 is provided with an adapter 136, and the adapter 136 is in an "L" shape, that is, the adapter 136 includes a first section and a second section connected, and there is an angle between the first section and the second section. The adapter 136 is a metal material or a high-strength plastic with a certain structural strength. Specifically, the metal material can be cast iron, cast steel, copper alloy, aluminum alloy, etc., without limitation. The adapter 136 can change the movement of the drive assembly 13 from the direction extending along the first section to the direction extending along the second section, so that the cable 131 can drive the transmission bolt 319 to move, so that the clamping portion 112 can extend into or out of the clamping slot 1221, so as to achieve the purpose of switching the unlocking mechanism 10 between the locked and unlocked states.

[0073] The unlocking block 11 of the utility model is provided with a main body 111 and a clamping part 112. The clamping part 112 extends into the clamping slot 1221 to lock the armrest assembly 100, and the clamping part 112 withdraws from the clamping slot 1221 to unlock the armrest assembly 100. The size of the clamping part 112 in the extension direction of the clamping slot 1221 gradually increases from the first end 1121 to the second end 1122, so that the end surface of the clamping part 112 in contact with the clamping slot 1221 is a wedge-shaped surface, and the wedge-shaped surface plays a role of inclined surface guidance, so that the clamping part 112 can be more easily extended into or withdrawn from the clamping slot 1221, so that the armrest assembly 100 is not easily invalidated during the switching process of the locked and unlocked states. The unlocking block 11 of the utility model makes the structural design of the unlocking mechanism 10 reasonable and simple, and has technical advantages such as high feasibility, strong practicality, and good operation convenience.

[0074] In one embodiment, the clamping portion 112 includes a first transition surface 1124 and a second transition surface 1125 that are opposite to each other in the extending direction of the clamping slot 1221 , and at least one of the first transition surface 1124 and the second transition surface 1125 is a curved surface.

[0075] In one embodiment, the first transition surface 1124 and the second transition surface 1125 are both arc surfaces, and the first transition surface 1124 and the second transition surface 1125 protrude in opposite directions.

[0076] The first transition surface 1124 and the second transition surface 1125 are opposite to each other in the extending direction of the slot 1221 , that is, the first transition surface 1124 and the second transition surface 1125 are opposite to each other in the axial direction of the pin shaft 313 .

[0077] Specifically, the middle region of the first transition surface 1124 is raised relative to the regions at both ends, that is, the middle region of the first transition surface 1124 is closer to the slot 1221 .

[0078] The protruding directions of the first transition surface 1124 and the second transition surface 1125 are opposite, which means that the first transition surface 1124 and the second transition surface 1125 are respectively used to abut against the two inner wall surfaces opposite to the slot 1221, and play a certain buffering transition role in the process of the locking portion 112 extending into or withdrawing from the slot 1221, which is beneficial to the switching of the unlocking mechanism 10 between the locked and unlocked states.

[0079] In one embodiment, the clamping portion 112 includes a first transition surface 1124 and a second transition surface 1125 opposite to each other in the extending direction of the clamping slot 1221 , and at least one of the first transition surface 1124 and the second transition surface 1125 has an angle with the movement direction of the clamping portion 112 extending into the clamping slot 1221 .

[0080] The movement direction of the clamping portion 112 extending into the clamping slot 1221 is the circumferential direction of the pin shaft 313 .

[0081] Optionally, the main body 111 has a first end face 1112, which is the end face of the main body 111 in the axial direction of the rotation axis along which the main body 111 rotates, and the first end face 1112 is the end face of the main body 111 located in the axial direction of the pin 313. The first end face 1112 may be parallel to the circumference of the pin 313, or may have an angle with the circumference of the pin 313. When the first end face 1112 is a plane and parallel to the circumference of the pin 313, the first end face 1112 is parallel to the movement direction of the clamping portion 112 extending into the clamping groove 1221. At least one of the first transition face 1124 and the second transition face 1125 has an angle with the movement direction of the clamping portion 112 extending into the clamping groove 1221, that is, at least one of the first transition face 1124 and the second transition face 1125 has an angle with the first end face 1112. Specifically, the first transition surface 1124 may have an angle with the circumference of the pin shaft 313, and the second transition surface 1125 may be parallel to the circumference of the pin shaft 313; or, the second transition surface 1125 may have an angle with the circumference of the pin shaft 313, and the first transition surface 1124 may be parallel to the circumference of the pin shaft 313; or, both the first transition surface 1124 and the second transition surface 1125 may have an angle with the circumference of the pin shaft 313.

[0082] When the first transition surface 1124 is a plane, the angle between any position of the first transition surface 1124 and the movement direction of the clamping portion 112 extending into the clamping slot 1221 remains unchanged; when the first transition surface 1124 is an arc surface, the angles between different positions on the first transition surface 1124 and the movement direction of the clamping portion 112 extending into the clamping slot 1221 may be different. The angle between the first transition surface 1124 and the movement direction of the clamping portion 112 extending into the clamping slot 1221 is 5°-20°, specifically, 5°, 10°, 15°, 20°, etc.

[0083] At least one of the first transition surface 1124 and the second transition surface 1125 has an angle with the movement direction of the clamping portion 112 extending into the clamping slot 1221, that is, the spacing between the first transition surface 1124 and the second transition surface 1125 on the first end 1121 side is smaller than the spacing between the second end 1122 side, which facilitates the clamping portion 112 to extend into or exit the clamping slot 1221, so that the armrest assembly 100 is not prone to failure during the switching process between the locked and unlocked states.

[0084] For reference Figure 5 In one embodiment, the end surface of the clamping portion 112 away from the main body 111 is a first surface 1123, the first surface 1123 is an arc surface, and the first surface 1123 extends along the circumference of the rotation axis of the main body 111. The circumference of the rotation axis of the main body 111 is the circumference of the pin 313.

[0085] The first surface 1123 is an arc surface extending along the circumference of the pin shaft 313, so that the clamping portion 112 can be more smoothly extended into and out of the clamping slot 1221, so that the armrest assembly 100 is not prone to failure during the switching process between the locked and unlocked states.

[0086] For reference Figure 3 and Figure 5 In one embodiment, the unlocking block 11 also includes a limiting portion 114, which is connected to the side of the main body 111 facing away from the connecting arm 113, and the limiting portion 114 is connected to the second end 1122. The end surface of the limiting portion 114 facing away from the main body 111 protrudes from the first surface 1123, and the limiting portion 114 is suitable for abutting against the locking member 122.

[0087] The limiting portion 114 may be a square block, and the limiting portion 114 and the main body 111 may be an integrated structure prepared by an integrated process, and the integrated process may specifically be casting, stamping, etc. The limiting portion 114 and the main body 111 may also be a split structure, that is, the connection method between the main body 111 and the limiting portion 114 may be welding, clamping, screwing, etc., without limitation.

[0088] The end surface of the limiting portion 114 facing away from the main body portion 111 protrudes from the first surface 1123 of the clamping portion 112, so that the limiting portion 114 has a limiting surface, and the limiting surface is connected to the first surface 1123. After the clamping portion 112 extends into the clamping groove 1221 to a certain depth, the limiting surface abuts against the axial end surface of the locking member 122 in the connecting rod 121. The limiting portion 114 is used to achieve relative fixation of the unlocking block 11 and the locking member 122, thereby achieving the stability of the locking state of the unlocking mechanism 10, which is beneficial to the structural stability of the unlocking mechanism 10.

[0089] For reference Figure 5 In one embodiment, a receiving groove 115 is provided at the connection between the main body 111 and the limiting portion 114, and the opening of the receiving groove 115 faces away from the clamping portion 112. The bottom wall of the receiving groove 115 can be an arc surface or a plane, without limitation.

[0090] The receiving groove 115 is used to receive the elastic member 33 . The elastic member 33 can limit the movement of the unlocking block 11 and help the unlocking block 11 to reset when the unlocking mechanism 10 is in the locked state, so that the unlocking mechanism 10 can remain stable in the locked state.

[0091] For reference Figure 1 and Figure 2 The utility model provides an armrest assembly 100, including an unlocking mechanism 10 and a support frame 30. The support frame 30 is rotatably connected to a connecting rod 121.

[0092] The support frame 30 includes a first bracket 31 and a second bracket 32 ​​connected to each other. The first bracket 31 is provided with a first groove and a second groove spaced apart, and the second bracket 32 ​​is provided with a third groove and a fourth groove spaced apart. The first groove and the third groove are combined to form a first connecting hole, and the second groove and the fourth groove are combined to form a second connecting hole. One end of the connecting rod 121 extends into the first connecting hole, and the other end of the connecting rod 121 extends into the second connecting hole.

[0093] The first bracket 31 and the second bracket 32 ​​can be plates with flanges, and the flanges are arranged on both sides of the plates. The connection method of the connecting rod 121 and the support frame 30 can be screwed, clamped, etc. The connection method of the first bracket 31 and the second bracket 32 ​​can be screwed, clamped, welded, etc., without limitation. The buckle base 134 is connected and fixed to the first bracket 31.

[0094] The first bracket 31 and the second bracket 32 ​​are both provided with support members, and there are multiple support members, which are arranged at intervals. The support member of the first bracket 31 is arranged on the end surface of the first bracket 31 facing the second bracket 32, and the support member of the second bracket 32 ​​is arranged on the end surface of the second bracket 32 ​​facing the first bracket 31. Support holes are provided on the support members, and the mounting members are penetrated through the support holes of the support members on the first bracket 31 and the support holes of the support members on the second bracket 32, so that the first bracket 31 and the second bracket 32 ​​are relatively fixed, so that the first groove and the third groove can be correspondingly enclosed to form a first connecting hole, and the second groove and the fourth groove can be correspondingly enclosed to form a second connecting hole. The first bracket 31 and the second bracket 32 ​​are enclosed to form a receiving cavity, and the unlocking mechanism 10 is received in the receiving cavity.

[0095] The bottom walls of the first groove, the second groove, the third groove and the fourth groove are provided with reinforcing ribs, which can be made of aluminum alloy, steel, high-strength plastic, etc., without limitation. The reinforcing ribs are interference fit with the connecting rod 121 to ensure the stability of the axis of the connecting rod 121, so that the rotation of the armrest assembly 100 is smoother, the structural strength of the rotating connection part 1211 is better, and the comfort is better.

[0096] The material of the support frame 30 can be modified PP (polypropylene), PC+ABS (polycarbonate + acrylonitrile-butadiene-styrene) and other materials. The armrest assembly 100 also includes a skin, which is coated on the outside of the support frame 30, which is conducive to improving the appearance of the armrest assembly 100 and improving the comfort of use of the armrest assembly 100. The material of the skin can be fabric, PVC (polyvinyl chloride), leather, etc., without limitation. The molding method of the support member and the first bracket 31 and the second bracket 32 ​​is insert injection molding. The support member can be firmly injected into the plastic as an insert to achieve a stable connection between the support member and the first bracket 31 and the second bracket 32, thereby improving the strength, rigidity and heat resistance of the product, and at the same time shortening the injection molding cycle, improving production efficiency, and improving product quality and reliability.

[0097] For reference Figure 1 The second bracket 32 ​​includes an armrest cover plate 321, a screen panel 322, a cup holder mechanism and an armrest cover opening handle mechanism 323 which are connected in sequence. The armrest cover opening handle mechanism 323 is connected and fixed to the driving assembly 13. The driving assembly 13 is manipulated by the armrest cover opening handle mechanism 323, and the unlocking block 11 can be driven to rotate relative to the pin shaft 313 through the cable 131, so that the clamping portion 112 can be extended into or out of the clamping slot 1221.

[0098] The armrest cover 321 is used to cover and protect the plates or components inside the armrest, and also to protect the passengers' hands and clothes from being soiled by dust and stains inside the armrest. The armrest cover 321 is usually made of plastic or metal material, and has the characteristics of being waterproof, anti-slip, and easy to clean.

[0099] The cup holder mechanism is a structural component used to fix and support a cup. It can provide a convenient cup holder for the driver or passenger to safely place and fix the cup during driving to prevent the cup from sliding or tipping over. The cup holder mechanism is usually made of plastic or metal materials, and its design needs to take into account the size, shape and weight of the cup to ensure that it can stably support the cup.

[0100] The screen panel 322 is a control panel installed on the armrest of the vehicle seat 200, and is usually used to control the heating, ventilation, massage and other functions of the seat 200. The screen panel 322 usually adopts a touch-screen design, with a simple and clear interface and easy operation. The screen panel 322 generally adopts a high-definition LCD (liquid crystal display) or LED (light-emitting diode) display, which can clearly display the various states and control options of the seat 200. At the same time, the screen panel 322 is also equipped with a variety of sensors and control circuits, which can sense the passenger's touch actions and the state of the seat 200, and make corresponding responses.

[0101] The armrest cover opening mechanism is used for passengers to open the armrest cover, which can be divided into a side-pull armrest cover opening handle, a flip-type armrest cover opening handle, a rotating armrest cover opening handle, etc. The armrest cover opening mechanism is convenient for passengers to use the armrest mechanism. The armrest assembly 100 is opened and folded by the armrest cover opening mechanism, and the safety and hygiene of the armrest assembly 100 can also be improved.

[0102] The unlocking mechanism 10 of the utility model is used for the armrest assembly 100. When the unlocking mechanism 10 is in the locked state, the clamping portion 112 extends into the clamping slot 1221, the limiting portion 114 abuts against the locking piece 122, the support frame 30 is fixed relative to the connecting rod 121, the armrest assembly 100 is stationary, and the armrest assembly 100 is in use or in a retracted state; when the unlocking mechanism 10 is in the unlocked state, the clamping portion 112 withdraws from the clamping slot 1221, there is a gap between the clamping portion 112 and the locking piece 122, the support frame 30 rotates relative to the connecting rod 121, the armrest assembly 100 moves, and the armrest assembly 100 is converted from the retracted state to the use state or from the use state to the retracted state. By adopting the above structure, the inclined guiding structure of the clamping part 112 can make the clamping part 112 better extend into and out of the clamping slot 1221, so as to realize better automatic resetting of the unlocking block 11 around the pin shaft 313 and under the action of the elastic member 33, while ensuring the locking strength and reasonably limiting the rotation angle of the unlocking block 11, so that the armrest assembly 100 can switch between the folded state and the use state.

[0103] For reference Figure 3 and Figure 4 In one embodiment, the support frame 30 includes a main board 311, a positioning plate 312 and a pin shaft 313. The main board 311 and the positioning plate 312 are arranged opposite to each other in the axial direction of the pin shaft 313. The two ends of the pin shaft 313 are respectively connected to the main board 311 and the positioning plate 312. The unlocking block 11 is arranged between the main board 311 and the positioning plate 312 and is rotatably connected to the pin shaft 313.

[0104] The main board 311 is the main body 111 of the first bracket 31. A positioning cross column 314 is also provided on the positioning plate 312. The positioning cross column 314 is composed of two mutually perpendicular columns to form a cross-shaped structure. The positioning cross column 314 is used to provide accurate positioning information to facilitate the measurement and positioning of various components in the handrail assembly 100. The positioning cross column 314 can be made of steel, such as angle steel, I-beam, etc., or a lightweight material such as aluminum alloy.

[0105] The main board 311, the positioning plate 312 and the positioning cross column 314 can be an integrated structure, that is, an integrated process prepared by an integrated process, which can be specifically casting, insert injection molding, etc. The main board 311, the positioning plate 312 and the positioning cross column 314 can also be a split structure, that is, connected by screwing, welding, clamping, etc.

[0106] The positioning plate 312 and the main board 311 are provided with corresponding mounting holes, and the pin 313 passes through the mounting holes and is connected and fixed to the main board 311 and the positioning plate 312. The mounting holes on the positioning plate 312 and the main board 311 are provided correspondingly to the first mounting holes 1111 on the main body 111, and the pin 313 is connected to the positioning plate 312, the main body 111 and the main board 311 in sequence.

[0107] For reference Figure 3 and Figure 4 A positioning bolt column 3121 and a positioning bolt 3122 are also provided on the positioning plate 312. The positioning bolt column 3121 is connected and fixed to the positioning plate 312. The positioning bolt 3122 is sleeved on the positioning bolt column 3121. The positioning bolt 3122 also abuts against the positioning plate 312. The positioning bolt column 3121 and the positioning bolt 3122 are used to fix the positioning plate 312.

[0108] A first bushing 315 is also provided between the pin shaft 313 and the main board 311. The first bushing 315 sleeves the pin shaft 313. The first bushing 315 is a sleeve-shaped structure, which is a sleeve used to support and protect other components. It is usually made of metal, plastic or rubber and can reduce friction, vibration and impact, and improve the life and stability of components. The first bushing 315 is used to ensure that the pin shaft 313 and the unlocking block 11 can rotate relative to the main board 311.

[0109] For reference Figure 3 and Figure 4 The armrest assembly 100 is also provided with a sleeve 316, the sleeve 316 is sleeved with a pin 313, the sleeve 316 is also connected and fixed to the positioning plate 312, and a second bushing 317 is provided between the sleeve 316 and the positioning plate 312, and the second bushing 317 is used to ensure that the sleeve 316, the pin 313, and the positioning plate 312 can rotate relative to the positioning plate 312.

[0110] The material of the shaft sleeve 316 can be plastic, metal, etc. Specifically, the specifications of the plastic shaft sleeve 316 include polyoxymethylene plastic shaft sleeve 316, nylon plastic shaft sleeve 316, polytetrafluoroethylene plastic shaft sleeve 316, Teflon plastic shaft sleeve 316, and Teflon plastic shaft sleeve 316, etc., without limitation.

[0111] The connection method between the sleeve 316 and the pin 313 can be a retaining spring connection, that is, a retaining spring groove is set at the end of the sleeve 316, and the retaining spring is set in the retaining spring groove. The retaining spring is used to fix the sleeve 316 to complete the connection and fixation between the sleeve 316 and the pin 313.

[0112] For reference Fig. 9 , the main board 311 is also provided with a buckle 318, which is used to fix the adapter 136 of the drive assembly 13. The connection between the buckle 318 and the main board 311 can be screwed, clamped, bonded, welded, etc., without limitation. The buckle 318 used to fix the adapter 136 is usually made of metal or plastic material, and has high strength and durability. The buckle 318 can be a screw-type buckle 318, a spring-type buckle 318, a latch-type buckle 318, etc., without limitation.

[0113] The main board 311 is also provided with a connection hole, which is arranged corresponding to the second mounting hole 1131 of the connecting arm 113. A connection gasket is arranged at one end of the cable 131 close to the connecting arm 113. The transmission bolt 319 of the unlocking mechanism 10 passes through the connection hole, the connection gasket and the second mounting hole 1131 in sequence, so as to realize the connection and fixation of the transmission bolt 319 with the cable 131 and the connecting arm 113. The transmission bolt 319 and the connecting arm 113 do not rotate relative to each other, so that the cable 131 drives the connecting arm 113 to move more smoothly. The cable 131 drives the transmission bolt 319 to move, thereby driving the connecting arm 113 to move, so that the main body 111 rotates around the pin 313, and the clamping part 112 is extended into or withdrawn from the clamping slot 1221.

[0114] The armrest assembly 100 of the utility model utilizes the unlocking mechanism 10 to switch between the use state and the stowed state. When the unlocking mechanism 10 is in the locked state, the armrest assembly 100 is stationary and the armrest assembly 100 is in the use or stowed state; when the unlocking mechanism 10 is in the unlocked state, the armrest assembly 100 moves and the armrest assembly 100 is switched from the stowed state to the use state or from the use state to the stowed state. The structure of the switching state of the armrest assembly 100 is simple, and the armrest assembly 100 has a physical structure to fix and limit the armrest assembly 100, whether it is in the use position or in the stowed position, which can fully ensure the stability of the armrest assembly 100 in the two positions, which not only ensures the safety of riding, but also improves the comfort of the armrest assembly 100.

[0115] For reference Figure 3 and Figure 4 In one embodiment, the armrest assembly 100 further includes an elastic member 33 , the elastic member 33 is sleeved with a pin shaft 313 , one end of the elastic member 33 abuts against the main board 311 , and the other end of the elastic member 33 is received in the receiving groove 115 of the unlocking block 11 .

[0116] The elastic member 33 can be a spring, a yellow sheet, etc. without limitation.

[0117] The elastic member 33 can be divided into a first elastic portion and a second elastic portion. The first elastic portion is a spring that spirally rises along the axial direction of the pin shaft 313. One end of the first elastic portion abuts against the main board 311, and the other end abuts against the unlocking block 11. The second elastic portion is a vertical elastic structure that extends along the axial direction of the pin shaft 313. The second elastic portion is accommodated in the accommodating groove 115 of the unlocking block 11.

[0118] When the armrest assembly 100 switches between the locked and unlocked states, the cable 131 forces the unlocking block 11 to overcome the resistance of the elastic member 33 and rotate, thereby realizing the rotation of the unlocking block 11, unlocking and locking the unlocking mechanism 10, and completing the position change of the armrest assembly 100. The elastic driving force of the elastic member 33 rotating around the pin 313 can keep the clamping portion 112 of the unlocking block 11 in the clamping groove 1221 or press on the surface of the locking member 122 to slide. On the one hand, the elastic member 33 can limit the movement of the unlocking block 11, so that the locked state of the unlocking mechanism 10 remains stable, and on the other hand, it is conducive to the automatic reset of the unlocking block 11.

[0119] For reference Figure 7 and Figure 8 In one embodiment, the support frame 30 further includes a limit block 34, which is connected to the main board 311, and the limit block 34 is suitable for limiting the connecting arm 113 to prevent the unlocking block 11 from over-rotating.

[0120] The connection method between the limit block 34 and the main board 311 can be an integrated process such as casting, insert injection molding, etc., or a separate process such as screw connection, welding, and clamping, without limitation.

[0121] The limit block 34 can be in the shape of a plate or a block, and there is no specific limitation. When the driving assembly 13 drives the unlocking block 11 to exit the slot 1221, the limit block 34 abuts against the connecting arm 113 to prevent the connecting arm 113 from continuing to rotate, and reasonably limits the rotation angle of the unlocking block 11 to prevent the elastic member 33 from being subjected to excessive force and causing the spring to fail, which is beneficial to improving the overall structural stability and extending the service life of the elastic member 33. At the same time, it is also beneficial to improve the user's operating experience during the process of folding and putting away the armrest assembly 100, and reduce the user's operating intensity.

[0122] When the clamping portion 112 of the unlocking block 11 exits the slot 1221, the unlocking mechanism 10 is unlocked, and the armrest assembly 100 begins to fall down, until the clamping portion 112 extends into the slot 1221 again, and the limiting portion 114 abuts against the surface of the locking member 122, thereby locking the unlocking mechanism 10. At the same time, the size of the clamping portion 112 on the pin 313 gradually increases from the first end 1121 to the second end 1122, forming an inclined guide, so that the clamping portion 112 is easier to extend into the slot 1221. When the driving assembly 13 is opened too much, the connecting arm 113 of the unlocking block 11 abuts against the limiting block 34 on the support frame 30 of the armrest assembly 100, limiting the excessive rotation of the unlocking block 11 and preventing the unlocking from failing. With the above structure, the inclined guide structure of the clamping part 112 can make the clamping part 112 better extend into and out of the clamping slot 1221, so that the unlocking block 11 can be better automatically reset around the pin shaft 313 and under the action of the elastic member 33, while ensuring the locking strength and reasonably limiting the rotation angle of the unlocking block 11.

[0123] For reference Figure 1 and Figure 2 The utility model provides a vehicle, comprising an armrest assembly 100 or a seat 200 as described in any one of the aforementioned embodiments.

[0124] The seat 200 may be a row seat 200, an independent seat 200, a folding seat 200, a sliding seat 200, etc., without limitation.

[0125] The armrest assembly 100 is used to divide the space of the seat 200. Whether in the use position or in the folded position, the armrest assembly 100 of the utility model has a physical structure such as a locking member 122 to fix and limit the armrest assembly 100, which can fully ensure the stability of the armrest assembly 100 in two positions, not only ensuring the safety of the ride, but also improving the comfort of the armrest assembly 100.

[0126] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0127] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An unlocking block, characterized in that: The unlocking block is used for the armrest assembly of the seat, including: Main body; A clamping portion, connected to one side of the main body, adapted to extend into a clamping slot of a locking assembly of the armrest assembly under the drive of the main body; The clamping portion includes a first end and a second end opposite to each other, the first end is suitable for extending into the clamping slot, and the size of the clamping portion in the extending direction of the clamping slot gradually increases from the first end to the second end.

2. The unlocking block according to claim 1, characterized in that: The clamping portion includes a first transition surface and a second transition surface opposite to each other in an extending direction of the clamping slot, and at least one of the first transition surface and the second transition surface is a curved surface.

3. The unlocking block according to claim 1, characterized in that: The clamping portion comprises a first transition surface and a second transition surface opposite to each other in the extending direction of the clamping slot, and at least one of the first transition surface and the second transition surface has an angle with the moving direction of the clamping portion extending into the clamping slot.

4. The unlocking block according to claim 1, characterized in that: An end surface of the clamping portion away from the main body is a first surface, the first surface is an arc surface, and the first surface extends along the circumferential direction of the rotation axis of the main body.

5. The unlocking block according to claim 1, characterized in that: The unlocking block further comprises a limiting portion, the limiting portion is connected to the second end, an end surface of the limiting portion facing away from the main body portion protrudes from the clamping portion, and the limiting portion is suitable for abutting against the locking assembly.

6. The unlocking block according to claim 1, characterized in that: The unlocking block further comprises a connecting arm, which is connected to a side of the main body facing away from the clamping portion and is suitable for driving the main body to rotate so that the clamping portion extends into or out of the clamping slot.

7. An unlocking mechanism, characterized in that: The unlocking mechanism is used for the armrest assembly of the seat, and comprises: The unlocking block according to any one of claims 1 to 6; A locking assembly is provided with the card slot; A driving assembly, one end of which is connected to the unlocking block, and the driving assembly is used to drive the unlocking block to rotate so that the engaging portion extends into or exits the engaging slot.

8. An armrest assembly, characterized in that: Comprising the unlocking mechanism as claimed in claim 7.

9. The armrest assembly according to claim 8, characterized in that: The armrest assembly also includes a pin shaft, and the unlocking block is rotatably connected to the pin shaft.

10. The armrest assembly according to claim 9, characterized in that: The armrest assembly further comprises an elastic member, the pin is sleeved on the elastic member, one end of the elastic member abuts against a main board of the armrest assembly, and the other end of the elastic member is connected to the unlocking block.

11. The armrest assembly according to claim 9, characterized in that: The armrest assembly further comprises a limit block, which is connected to a main board of the armrest assembly and is suitable for limiting the position of a connecting arm of the unlocking block.

12. A seat, characterized in that: It comprises a backrest frame and an armrest assembly as claimed in any one of claims 8 to 11, wherein the backrest frame is connected to the armrest assembly.

13. A vehicle, characterized in that: It comprises the armrest assembly as claimed in any one of claims 8 to 11 or the seat as claimed in claim 12.

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