Dynamic chassis with locking function

Abstract

The invention provides a dynamic chassis with a locking function, which comprises a swinging component and a fixing component, and an elastic body is arranged between the swinging component and the fixing component to realize that the swinging component swings relative to the fixing component along with swinging of a human body; the swing assembly comprises a shell assembly and a locking mechanism arranged on the shell assembly, the locking mechanism comprises a control piece and a locking piece, a locking space which is sunken in the radial direction is formed in the periphery of the fixing assembly, and the control piece rotates in the axial direction of the fixing assembly to drive the locking piece to move in the radial direction of the fixing assembly. When the control piece rotates towards the locking direction, the locking piece enters the locking space to lock swinging of the swinging assembly, and when the control piece rotates towards the unlocking direction, the locking piece leaves the locking space to enable the swinging assembly to swing; through the control piece, the locking piece and the locking space which are adaptively arranged, convenient and effective swing locking and unlocking are achieved.

Description

Technical Field

[0001] The invention relates to the field of office furniture, and in particular to a dynamic chassis with a locking function. Background Art

[0002] In today's life, more and more people spend most of their day in chairs; and for some office chairs, although the reclining function allows users to get a short rest, most of the time they stay in the same working posture, which can easily cause health problems due to sitting in the same posture for a long time; furthermore, from the comfort point of view, the fixed chassis makes the seat fixed and difficult to follow the inclination of the human body, so that the user cannot get comfortable feedback in different postures.

[0003] Therefore, a dynamic chassis is needed that can make the seat tilt in all directions as the user changes posture, improve comfort, and meet the different needs of users.

[0004] The Chinese invention patent CN201810389812.8 discloses a chassis structure of a swivel chair, comprising a bottom shell fixed to the bottom of the seat cushion of the swivel chair, a fixing seat installed at the upper end of the gas pressure rod of the swivel chair, and an elastic cylindrical elastomeric structure connected between the outer wall of the fixing seat and the inner wall of the bottom shell. The elastomeric structure is configured as an environmentally friendly silicone tube that can be deformed and has resilience when subjected to external force, so that an elastic connection structure is formed between the bottom shell and the fixing seat and relative movement can occur. A human body sits on the seat cushion and performs longitudinal swing in any direction of 360 degrees horizontally, which can drive the bottom shell to perform longitudinal swing, thereby realizing a slight up and down swing function; a mounting hole is provided in the middle of the fixing seat, and a cylinder switch is provided on the mounting hole; the chassis structure also includes a lifting handle hinged to the bottom shell through a handle pin shaft, the lifting handle is provided with a hinge hole that can be hinged to the handle pin shaft, and a notch is provided at the upper end of the bottom shell for the lifting handle to pass through; the outer side surface of the bottom shell is configured as an arc-shaped inclined surface inclined inward from top to bottom.

[0005] It can be seen that the swing of this type of chassis cannot be locked, so the chair using this type of chassis is always in a swinging state, which reduces the original stable supporting ability. Therefore, for a dynamic chassis, in addition to having a free swinging state, it should also retain a stable sitting state for users to choose and switch as needed. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, the present invention provides a dynamic chassis with a locking function, including a swinging component and a fixed component, an elastic body is arranged between the two to enable the swinging component to swing relative to the fixed component as the human body swings; the swinging component includes a shell component and a locking mechanism arranged on the shell component, the locking mechanism includes a control member and a locking member, the fixed component is formed with a radially recessed locking space on its outer periphery, the control member rotates axially along the fixed component, driving the locking member to move radially along the fixed component; when the control member rotates toward the locking direction, the locking member enters the locking space to lock the swing of the swinging component, and when the control member rotates toward the unlocking direction, the locking member leaves the locking space to enable the swinging component to swing; through the adaptively arranged control member, locking member and locking space, convenient and effective swing locking and unlocking are achieved.

[0007] The technical solution of the present invention is achieved in this way: A dynamic chassis with a locking function comprises a swinging assembly and a fixed assembly, wherein the swinging assembly is configured to be relatively fixed to a seat, and the fixed assembly is configured to be inserted with a lifting gas rod; an elastic body is arranged between the swinging assembly and the fixed assembly, and the swinging assembly swings relative to the fixed assembly in response to an external force and squeezes the elastic body, and the elastic body deforms and exerts its own elastic force on the swinging assembly; the swinging assembly comprises a shell assembly and a locking mechanism, wherein the elastic body is located between the shell assembly and the fixed assembly, and the locking mechanism is arranged on the shell assembly; the locking mechanism comprises a control member and a locking member, and the fixed assembly is formed with a radially recessed locking space on its outer periphery, the control member is arranged on the shell assembly for rotation along the circumference of the fixed assembly, and the locking member is arranged on the shell assembly for radial movement along the fixed assembly, and the control member has a locking direction and an unlocking direction; when the control member rotates toward the locking direction, the locking member is controlled to move to enter the locking space and prevent the swinging assembly from swinging on the fixed assembly; when the control member rotates toward the unlocking direction, the locking member is controlled to move to leave the locking space, and the swinging assembly can swing in any direction on the fixed assembly.

[0008] In the dynamic chassis, an elastic body is provided between the swing component and the fixed component to realize dynamic swing of the swing component relative to the fixed component. The user can swing forward, backward, left and right at all angles while sitting on it without getting tired due to maintaining the same sitting posture. The dynamic swing also greatly improves the sitting comfort.

[0009] The dynamic chassis is unlocked and locked by swinging through a locking mechanism, and the locking piece arranged on the shell assembly is locked into the locking space of the fixed assembly. The shell assembly and the fixed assembly will be stuck due to the locking piece, and no relative swing will occur between the two. Due to the particularity of the dynamic chassis, the locking method of plugging and unplugging the operating rod in the existing chassis is relatively inconvenient and has poor effect. First, since the swing can be performed at all angles, it is difficult to align the operating rod when it is inserted into the fixed assembly when locked, and the operating rod cannot penetrate the chassis. Therefore, when the operating rod is installed on the chassis, only a small section is supported by the swing assembly, which has poor stability and is prone to shaking and misoperation. The chassis may be unlocked or locked inexplicably, affecting the user experience. In the locking mechanism of the above scheme, the control member rotates circumferentially on the dynamic chassis. When the control member rotates, it drives the locking member to enter both the shell assembly and the fixed assembly or drives the locking member to stay only in the shell assembly, which is more conducive to smoothly and effectively realizing the switching between locking and unlocking; it is also easy to operate and avoids the problem of stability of the control member installation.

[0010] Preferably, the housing assembly is formed with an accommodating space, the accommodating space is communicated with the locking space, the locking member is located in the accommodating space and the locking member is rotatably arranged on the housing assembly. When the locking member is only in the accommodating space, the swing assembly can swing relative to the fixed assembly; when the locking member rotates in the accommodating space and a part of it enters the locking space, the locking member partially remains in the accommodating space, that is, the locking member exists in both the housing assembly and the fixed assembly, thereby fixing the swing assembly and the fixed assembly relatively.

[0011] Preferably, an elastic member is provided in the accommodating space, one end of the elastic member is fixed to the housing assembly, and the other end of the elastic member acts on the locking member and gives elastic force to the locking member to rotate away from the locking space. The elastic member can reset the locking member; at the same time, when the locking member is not aligned with the locking space, the elastic member can first give the locking member a force toward the fixed assembly, and after the locking member is aligned with the locking space, the locking member is naturally forced to enter the locking space, which has a delayed buffer locking effect, so there is no need to worry about the difficulty of aligning the locking member with the locking space and locking difficulties.

[0012] Preferably, the elastic member has a convex portion, and a protrusion is convexly provided on the control member. When the control member rotates toward the locking direction, the protrusion moves toward the protrusion and squeezes the protrusion to deform the elastic member toward the locking space, and the elastic member drives the locking member to rotate toward the locking space; when the control member rotates toward the unlocking direction, the protrusion leaves the protrusion, the elastic member recovers its deformation and drives the locking member to leave the locking space. When the control member rotates, the protrusion moves relative to the protrusion of the elastic member, and when the protrusion and the protrusion are against each other, the elastic member can be driven to bend toward the fixed component, so that when the locking member is aligned with the locking space, the locking member enters the locking space to complete the locking, and when the protrusion leaves the protrusion, the elastic member recovers its deformation by itself and unlocks the lock. The structure is simple and the operation is convenient.

[0013] Preferably, the elastic member includes two spring sheets, which are clamped on both sides of the locking member. The spring sheets clamp the locking member, and when the spring sheets are deformed, they can drive the locking member to rotate, thereby cleverly realizing the driving of locking and unlocking.

[0014] Preferably, the shell assembly includes an upper shell and a lower shell arranged vertically, each of the upper shell and the lower shell having a main body and an extension portion, the extension portion is located at the outer edge of the main body and protrudes outward from the main body, and an accommodating space is formed between the two extension portions; an installation space for accommodating the elastomer is opened on the main body.

[0015] Preferably, the housing assembly further comprises a bottom housing, which is fixedly arranged below the lower housing, and the control member is rotatably arranged between the bottom housing and the upper housing; a locking positioning hole and an unlocking positioning hole are provided on the bottom housing, and an elastic positioning member is provided on the control member, and when the control member rotates until the elastic positioning member enters the locking positioning hole, the locking member is in the locking space, and the moving chassis is in a locked state; when the control member rotates until the elastic positioning member enters the unlocking positioning hole, the locking member leaves the locking space, and the moving chassis is in an unlocked state. The bottom housing and the upper housing sandwich the control member, so that the control member is stably arranged in the housing assembly; the bottom housing is also provided with a locking positioning hole and an unlocking positioning hole, so that the control member is positioned when rotating, thereby providing feedback to the user.

[0016] Preferably, the locking space is annular, and a plurality of the locking members are arranged along the circumferential direction of the locking space. The plurality of locking members act simultaneously, making the locking more stable and the structure less prone to damage.

[0017] Preferably, the housing assembly includes an upper housing and a lower housing, each of which has a main body and an extension, the extension being located at the outer edge of the main body and protruding outward from the main body, the main body of the upper housing protruding upward from the extension, and the main body of the lower housing protruding downward from the extension; an installation space for accommodating the elastic body is provided on the main body. The upper housing and the lower housing are fixedly connected, and the two sandwich the elastic body from top to bottom to prevent the elastic body from detaching and losing the swinging function.

[0018] Preferably, the fixing assembly includes an upper fixing part, a lower fixing part and a pad located between the upper fixing part and the lower fixing part, and the upper fixing part, the pad and the lower fixing part are successively pressed against and fixedly connected from top to bottom; the upper fixing part and the lower fixing part both have a sleeve part and a mounting part extending outward from the outer edge of the sleeve part, the mounting part is used to mount the elastomer and a mounting hole is provided on the mounting part; there are two elastomers, and the two elastomers are respectively arranged between the upper fixing part and the upper shell and between the lower fixing part and the lower shell. The two elastomers are respectively sandwiched by the upper fixing part and the upper shell, and the lower fixing part and the lower shell, and the upper shell, the elastomer, the upper fixing part, the pad, the lower fixing part, another elastomer, and the lower shell form a multi-layer structure, and when swinging, the two elastomers are acted on at the same time, making the swing more stable and reliable, and having better buffering capacity.

[0019] Preferably, the elastomer is ring-shaped, and in the radial direction, the elastomer is sleeved on the fixing assembly, and the housing assembly is sleeved on the elastomer.

[0020] Preferably, the fixing assembly has a sleeve part, which is used to insert the lifting gas rod, and the shell assembly is provided with an avoidance hole for avoiding the sleeve part in the up-down direction, and there is a gap between the avoidance hole and the sleeve part, and the elastic body extends outward from the shell assembly at the gap. On the one hand, there is space for the swing assembly to swing, and on the other hand, it provides a swing limit, and the elastic body provides a buffer in the gap, so that there will be no collision between the sleeve part and the shell assembly, causing noise and component damage.

[0021] Preferably, the housing assembly is provided with a plurality of deformation holes for avoiding the elastic body and allowing the elastic body to obtain more deformation. The deformation holes can accommodate additional elastic bodies, especially when the elastic body deforms toward the deformation holes, the elastic body can produce more deformation, so that the swing effect is better.

[0022] Preferably, a plurality of deformation holes are centrally symmetrically arranged on the edge of the shell component.

[0023] The design starting point, concept and beneficial effects of the present invention using the above technical solution are: In the dynamic chassis, an elastic body is provided between the swing component and the fixed component to realize dynamic swing of the swing component relative to the fixed component. The user can swing forward, backward, left and right at all angles while sitting on it without getting tired due to maintaining the same sitting posture. The dynamic swing also greatly improves the sitting comfort.

[0024] The dynamic chassis is unlocked and locked by swinging through a locking mechanism, and the locking piece arranged on the shell assembly is locked into the locking space of the fixed assembly. The shell assembly and the fixed assembly will be stuck due to the locking piece, and no relative swing will occur between the two. Due to the particularity of the dynamic chassis, the locking method of plugging and unplugging the operating rod in the existing chassis is relatively inconvenient and has poor effect. First, since the swing can be performed at all angles, it is difficult to align the operating rod when it is inserted into the fixed assembly when locked, and the operating rod cannot penetrate the chassis. Therefore, when the operating rod is installed on the chassis, only a small section is supported by the swing assembly, which has poor stability and is prone to shaking and misoperation. The chassis may be unlocked or locked inexplicably, affecting the user experience. In the locking mechanism of the above scheme, the control member rotates circumferentially on the dynamic chassis. When the control member rotates, it drives the locking member to enter both the shell assembly and the fixed assembly or drives the locking member to stay only in the shell assembly, which is more conducive to smoothly and effectively realizing the switching between locking and unlocking; it is also easy to operate and avoids the problem of stability of the control member installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the dynamic chassis and the gas rod installation in the embodiment of the present invention; Figure 2 The three-dimensional structure of the dynamic chassis in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 3 The three-dimensional structure of the dynamic chassis in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 4 is a cross-sectional view of the dynamic chassis in an embodiment of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure when the locking member in the embodiment of the present invention does not enter the locking space; Figure 6 A top view of the embodiment of the present invention when the locking member does not enter the locking space; Figure 7 A top view of the locking member in the embodiment of the present invention when entering the locking space; Figure 8 It is a schematic diagram of the three-dimensional structure of the swing assembly in the embodiment of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing assembly in the embodiment of the present invention; Fig.10 An exploded view of a swing assembly and a fixed assembly in an embodiment of the present invention; Fig.11 FIG. 4 is an exploded view of the dynamic chassis in an embodiment of the present invention.

[0026] The reference numerals of the figures are as follows: swing assembly 1; fixing assembly 2; lifting gas rod 3; elastic body 4; control member 5; locking member 6; locking space 7; upper fixing member 8; lower fixing member 9; pad 10; sleeve portion 11; mounting portion 12; mounting hole 13; mounting protrusion 14; upper shell 15; lower shell 16; main body 17; extension portion 18; mounting space 19; deformation hole 20; avoidance hole 21; accommodating space 22; bottom shell 23; operating rod 24; locking positioning hole 25; unlocking positioning hole 26; elastic positioning member 27; pad 28; elastic member 29; spring sheet 291; convex portion 30; protrusion 31; groove 32. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of the present invention, the term "at least one" refers to one or more than one, unless otherwise clearly defined. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] The specific implementation methods of the present invention are as follows: like Figure 1-7As shown, the present invention provides a dynamic chassis with a locking function, including a swing component 1 and a fixed component 2, wherein the swing component 1 is configured to be relatively fixed to the seat, and the fixed component 2 is configured to be inserted with a lifting gas rod 3; an elastic body 4 is arranged between the swing component 1 and the fixed component 2, and the swing component 1 swings relative to the fixed component 2 in response to an external force and squeezes the elastic body 4, and the elastic body 4 deforms and exerts its own elastic force on the swing component 1; the swing component 1 includes a shell component and a locking mechanism, the elastic body 4 is located between the shell component and the fixed component 2, and the locking mechanism is arranged on the shell component; the locking mechanism includes a control member 5 and a locking member 6, a radially recessed locking space 7 is formed on the outer circumference of the fixed component 2, the control member 5 is rotatably arranged on the housing component along the circumferential direction of the fixed component 2, and the locking member 6 is radially movable on the housing component along the fixed component 2, and the control member 5 has a locking direction and an unlocking direction; when the control member 5 rotates toward the locking direction, the locking member 6 is controlled to move to enter the locking space 7 and prevent the swing component 1 from swinging on the fixed component 2; when the control member 5 rotates toward the unlocking direction, the locking member 6 is controlled to move to leave the locking space 7, and the swing component 1 can swing in any direction on the fixed component 2.

[0031] In the dynamic chassis, an elastic body 4 is provided between the swing component 1 and the fixed component 2 to realize dynamic swing of the swing component 1 relative to the fixed component 2. The user can sit on it and swing forward, backward, left and right at all angles without getting tired due to maintaining the same sitting posture. The dynamic swing also greatly improves the sitting comfort.

[0032] The dynamic chassis is unlocked and locked by swinging through the locking mechanism, and the locking member 6 arranged on the shell component is locked into the locking space 7 of the fixed component 2. The shell component and the fixed component 2 are stuck due to the locking member 6, and no relative swing occurs between the two. Due to the particularity of the dynamic chassis, the locking method of plugging and unplugging the operating rod 24 in the existing chassis is inconvenient and has poor effect. First, since the swing can be carried out at all angles, it is difficult to align the operating rod 24 inserted into the fixed component 2 when locking, and the operating rod 24 cannot penetrate the chassis, so the operating rod 24 is inserted into the fixed component 2. When the rod 24 is installed on the chassis, only a small section is supported by the swing component 1, which has poor stability and is prone to shaking and causing misoperation. The chassis may be unlocked or locked inexplicably, affecting the user experience. In the locking mechanism of the above scheme, the control member 5 rotates circumferentially on the dynamic chassis. When the control member 5 rotates, it drives the locking member 6 to enter both the shell component and the fixed component 2 or drives the locking member 6 to stay only in the shell component, which is more conducive to the smooth and effective switching between locking and unlocking. It is also easy to operate and avoids the problem of installation stability of the control member 5.

[0033] Specifically, if Figure 8-11As shown, there are two elastic bodies 4, which are respectively arranged on the upper and lower sides of the fixing assembly 2; the fixing assembly 2 includes an upper fixing member 8, a lower fixing member 9 and a pad 10 located between the upper fixing member 8 and the lower fixing member 9, the upper fixing member 8, the pad 10 and the lower fixing member 9 are successively abutted and fixedly connected from top to bottom, and the three are fixedly connected by four vertical bolts; the upper fixing member 8 and the lower fixing member 9 both have a sleeve portion 11 and a mounting portion 12 extending outward from the outer edge of the sleeve portion 11, the sleeve portion 11 is vertical and tubular, the mounting portion 12 is horizontal and plate-shaped, and the sleeve The tube portion 11 and the mounting portion 12 are integrally formed, the pad 10 is in the shape of an annular plate, and is located between the two mounting portions 12; the mounting portion 12 is used to mount the elastomer 4 and a mounting hole 13 is provided on the mounting portion 12, a mounting protrusion 14 is correspondingly provided on the elastomer 4, the elastomer 4 is annular, the elastomer 4 is sleeved on the sleeve portion 11, and the mounting protrusion 14 is inserted into the mounting hole 13; the sleeve portion 11 is used to insert the lifting gas rod 3, the sleeve portion 11 of the upper fixing member 8 protrudes upward from the mounting portion 12, and the sleeve portion 11 of the lower fixing member 9 protrudes downward from the mounting portion 12.

[0034] like Figure 8 As shown, the shell assembly includes an upper shell 15 and a lower shell 16, and the upper shell 15 and the lower shell 16 both have a main body 17 and an extension 18. The extension 18 is located at the outer edge of the main body 17 and protrudes outward from the main body 17. The main body 17 of the upper shell 15 protrudes upward from the extension 18, and the main body 17 of the lower shell 16 protrudes downward from the extension 18; the extension 18 is plate-shaped and is integrally formed with the main body 17; an installation space 19 for accommodating the elastomer 4 is opened on the main body 17; the upper shell 15 and the lower shell 16 are fixedly connected, and the two sandwich the elastomer 4 from top to bottom to prevent the elastomer 4 from detaching and losing the swinging function.

[0035] like Figure 4 , 10 As shown in Figures 1 and 11, in the radial direction, the elastomer 4 is sleeved on the fixing assembly 2, and the shell assembly is sleeved on the elastomer 4; the two elastomers 4 are respectively arranged between the upper fixing part 8 and the upper shell 15 and between the lower fixing part 9 and the lower shell 16. After the two elastomers 4 are respectively installed on the upper fixing part 8 and the lower fixing part 9, the upper shell 15 and the lower shell 16 cover the two and clamp the elastomer 4 and the fixing assembly 2; the two elastomers 4 are respectively clamped by the upper fixing part 8 and the upper shell 15, and the lower fixing part 9 and the lower shell 16, and the upper shell 15, the elastomer 4, the upper fixing part 8, the pad 10, the lower fixing part 9, the other elastomer 4, and the lower shell 16 form a multi-layer structure. When swinging, the two elastomers 4 are acted on at the same time, making the swing more stable and reliable, and the buffering capacity is also better.

[0036] like Fig. 9As shown, the shell assembly is provided with a plurality of deformation holes 20 for avoiding the elastomer 4 and allowing the elastomer 4 to obtain more deformation; the plurality of deformation holes 20 are centrally symmetrically arranged at the edge of the shell assembly; the deformation holes 20 can accommodate additional elastomers 4, especially when the elastomer 4 is deformed toward the deformation holes 20, the elastomer 4 can produce more deformation, so that the swinging effect is better.

[0037] like Figure 2 , 3 As shown, an avoidance hole 21 for avoiding the sleeve portion 11 is opened in the upper and lower directions of the shell assembly, specifically located on the main body 17 of the upper shell 15 and the main body 17 of the lower shell 16. There is a gap between the avoidance hole 21 and the sleeve portion 11, and the elastomer 4 extends out of the shell assembly at the gap; on the one hand, there is space for the swing assembly 1 to swing, and on the other hand, a swing limit is provided, and the elastomer 4 provides a buffer in the gap, so that no collision will occur between the sleeve portion 11 and the shell assembly, causing noise and component damage.

[0038] Furthermore, if Figure 4-8 10, the housing assembly is formed with a receiving space 22, the receiving space 22 is communicated with the locking space 7, the locking member 6 is located in the receiving space 22 and the locking member 6 is rotatably arranged on the housing assembly; specifically, the height of the extension portion 18 of the upper housing 15 is the same as the mounting portion 12 of the upper fixing member 8, the height of the extension portion 18 of the lower housing 16 is the same as the mounting portion 12 of the lower fixing member 9, and since the pad 10 provides a gap between the two mounting portions 12, there is also a gap between the two extension portions 18; the locking space 7 is formed between the two mounting portions 12, and the receiving space 22 is formed between the two extension portions 18 When the locking member 6 is only in the accommodating space 22, the swing assembly 1 can swing relative to the fixed assembly 2; when the locking member 6 rotates in the accommodating space 22 and a part of it enters the locking space 7, part of the locking member 6 remains in the accommodating space 22, that is, the locking member 6 exists in both the housing assembly and the fixed assembly 2, thereby fixing the swing assembly 1 and the fixed assembly 2 relatively; the locking space 7 and the accommodating space 22 are both annular, and in the accommodating space 22, a plurality of the locking members 6 are arranged along the circumferential direction; when a plurality of the locking members 6 act at the same time, the locking is more stable and the structure is not easily damaged. In this embodiment, four locking members 6 are evenly distributed, and each locking member 6 is provided with a corresponding elastic member 29.

[0039] Furthermore, if Figure 3 , 10As shown in Figures 11, the housing assembly further comprises a bottom housing 23, which is fixedly arranged below the lower housing 16, and the control member 5 is rotatably arranged between the bottom housing 23 and the upper housing 15; the outer edge of the bottom housing 23 has a flange to accommodate and limit the annular control member 5, and the control member 5 can rotate between the bottom housing 23 and the upper housing 15, and an operating rod 24 is fixedly arranged on the control member 5 for the user to push and pull; a locking positioning hole 25 and an unlocking positioning hole 26 are provided on the end surface of the bottom housing 23, and an elastic positioning member 27 is provided on the control member 5. When the control member 5 rotates until the elastic positioning member 27 enters the locking position, the locking position is released. When the control member 5 is rotated to the positioning hole 25, the locking member 6 is in the locking space 7, and the moving chassis is in a locked state; when the control member 5 is rotated to the elastic positioning member 27 and enters the unlocking positioning hole 26, the locking member 6 leaves the locking space 7, and the moving chassis is in an unlocked state; the bottom shell 23 and the upper shell 15 clamp the control member 5, so that the control member 5 is stably set in the shell assembly; the bottom shell 23 is also provided with a locking positioning hole 25 and an unlocking positioning hole 26, so that the control member 5 is positioned when rotating, thereby providing feedback to the user; the elastic positioning member 27 is a positioning pin with a spring, and its end is a hemisphere.

[0040] Specifically, if Figure 5-7 As shown in FIGS. 10 and 11, a cushion block 28 and an elastic member 29 corresponding to the number of locking blocks are provided in the accommodating space 22. The cushion block 28 is fixedly arranged on the housing assembly. One end of the elastic member 29 is fixed relatively to the housing assembly by being fixed on the cushion block 28. The other end of the elastic member 29 acts on the locking member 6 and gives the locking member 6 an elastic force to rotate away from the locking space 7. The elastic member 29 includes two spring pieces 291, and the two spring pieces 291 are clamped on both sides of the locking member 6. The spring pieces 291 clamp the locking member 6. When the spring pieces 291 are deformed, the locking member 6 can be driven to rotate, so as to cleverly realize the driving of locking and unlocking. Moreover, the elastic member 29 can reset the locking member 6. At the same time, when the locking member 6 is not aligned with the locking space 7, the elastic member 29 can first give the locking member 6 a force toward the fixing assembly 2. After the locking member 6 is aligned with the locking space 7, the locking member 6 is naturally forced to enter the locking space 7, which has a delayed buffering locking effect, so there is no need to worry about the problems of difficulty in aligning the locking member 6 with the locking space 7 and difficulty in locking.

[0041] The elastic member 29 has a convex portion 30, and a corresponding number of protrusions 31 are convexly provided on the control member 5. When the control member 5 rotates toward the locking direction, the protrusion 31 moves toward the protrusion 30 and squeezes the protrusion 30 to deform the elastic member 29 toward the locking space 7, and the elastic member 29 drives the locking member 6 to rotate toward the locking space 7; when the control member 5 rotates toward the unlocking direction, the protrusion 31 leaves the protrusion 30, the elastic member 29 recovers its deformation and drives the locking member 6 to leave the locking space 7; the protrusion 31 moves relative to the protrusion 30 of the elastic member 29 when the control member 5 rotates, and when the protrusion 31 and the protrusion 30 are against each other, the elastic member 29 can be driven to bend toward the fixing component 2, so that when the locking member 6 is aligned with the locking space 7, the locking member 6 enters the locking space 7 to complete the locking, and when the protrusion 31 leaves the protrusion 30, the elastic member 29 can recover its deformation by itself and be unlocked. The structure is simple and the operation is convenient.

[0042] In order to avoid the protrusion 31 on the control member 5, a groove 32 is opened on the main body 17 of the lower shell 16. The protrusion 31 can move in the groove 32. The groove 32 can also limit the protrusion 31 to prevent the control member 5 from rotating excessively and causing the protrusion 31 and the convex part 30 that were originally against each other to disengage, thereby causing the dynamic chassis that should be locked to unlock and swing, affecting use.

Claims

1. A dynamic chassis with locking function, characterized in that: It includes a swing component and a fixed component, the swing component is configured to be relatively fixed with the seat, and the fixed component is configured to be inserted with a lifting gas rod; an elastic body is arranged between the swing component and the fixed component, and the swing component swings relative to the fixed component in response to external force and squeezes the elastic body, and the elastic body deforms and exerts its own elastic force on the swing component; the swing component includes a shell component and a locking mechanism, the elastic body is located between the shell component and the fixed component, and the locking mechanism is arranged on the shell component; the locking mechanism includes a control member and a locking member, the fixed component is formed with a radially recessed locking space on its outer periphery, the control member is arranged on the shell component to rotate along the circumference of the fixed component, and the locking member is arranged on the shell component to move radially along the fixed component, and the control member has a locking direction and an unlocking direction; When the control member rotates toward the locking direction, the control locking member moves to enter the locking space and prevents the swinging assembly from swinging on the fixed assembly; when the control member rotates toward the unlocking direction, the control locking member moves to leave the locking space, and the swinging assembly can swing in any direction on the fixed assembly.

2. The dynamic chassis according to claim 1, characterized in that: The housing assembly is formed with an accommodating space, the accommodating space is communicated with the locking space, the locking piece is located in the accommodating space and the locking piece is rotatably arranged on the housing assembly.

3. The dynamic chassis according to claim 2, characterized in that: An elastic member is arranged in the accommodating space, one end of the elastic member is fixed to the housing assembly, and the other end of the elastic member acts on the locking member and gives the locking member an elastic force to rotate away from the locking space.

4. The dynamic chassis according to claim 3, characterized in that: The elastic member has a convex portion, and a protrusion is convexly provided on the control member. When the control member rotates toward the locking direction, the protrusion moves toward the convex portion and presses the convex portion to deform the elastic member toward the locking space, and the elastic member drives the locking member to rotate toward the locking space. When the control member rotates toward the unlocking direction, the protrusion leaves the convex portion, the elastic member recovers its deformation and drives the locking member to leave the locking space.

5. The dynamic chassis according to claim 3, characterized in that: The elastic member comprises two spring sheets, and the two spring sheets are clamped at two sides of the locking member.

6. The dynamic chassis according to claim 2, characterized in that: The shell assembly includes an upper shell and a lower shell arranged up and down. Both the upper shell and the lower shell have a main body and an extension part. The extension part is located at the outer edge of the main body and protrudes outward from the main body. An accommodating space is formed between the two extension parts. An installation space for accommodating the elastomer is opened on the main body.

7. The dynamic chassis according to claim 6, characterized in that: The housing assembly further comprises a bottom housing, which is fixedly arranged below the lower housing, and the control member is rotatably arranged between the bottom housing and the upper housing; a locking positioning hole and an unlocking positioning hole are provided on the bottom housing, and an elastic positioning member is provided on the control member, and when the control member is rotated until the elastic positioning member enters the locking positioning hole, the locking member is in the locking space, and the moving chassis is in a locked state; When the control member rotates until the elastic positioning member enters the unlocking positioning hole, the locking member leaves the locking space, and the moving chassis is in an unlocked state.

8. The dynamic chassis according to claim 1, characterized in that: The locking space is annular, and a plurality of the locking members are arranged along the circumferential direction of the locking space.

9. The dynamic chassis according to claim 1, characterized in that: The shell assembly includes an upper shell and a lower shell, each of which has a main body and an extension part. The extension part is located at the outer edge of the main body and protrudes outward from the main body. The main body of the upper shell protrudes upward from the extension part, and the main body of the lower shell protrudes downward from the extension part. An installation space for accommodating the elastomer is opened on the main body.

10. The dynamic chassis according to claim 9, characterized in that: The fixing assembly includes an upper fixing part, a lower fixing part and a pad located between the upper fixing part and the lower fixing part, and the upper fixing part, the pad and the lower fixing part are sequentially abutted against and fixedly connected from top to bottom; the upper fixing part and the lower fixing part both have a sleeve portion and a mounting portion extending outward from the outer edge of the sleeve portion, the mounting portion is used to install the elastomer and a mounting hole is opened on the mounting portion; there are two elastomers, and the two elastomers are respectively arranged between the upper fixing part and the upper shell body and between the lower fixing part and the lower shell body.

11. The dynamic chassis according to claim 1, characterized in that: The elastic body is ring-shaped. In the radial direction, the elastic body is sleeved on the fixing component, and the shell component is sleeved on the elastic body.

12. The dynamic chassis according to claim 1, characterized in that: The fixing component has a sleeve part, which is used to insert the lifting gas rod. The shell component is provided with an avoidance hole in the up and down directions for avoiding the sleeve part. There is a gap between the avoidance hole and the sleeve part, and the elastic body extends out of the shell component at the gap.

13. The dynamic chassis according to claim 1, characterized in that: The shell component is provided with a plurality of deformation holes for avoiding the elastic body and allowing the elastic body to obtain more deformation.

14. The dynamic chassis according to claim 13, characterized in that: A plurality of deformation holes are centrally and symmetrically arranged on the edge of the shell component.

Images