Elastic chassis structure for seat

Abstract

The utility model discloses an elastic chassis structure for a seat. The elastic chassis structure comprises a seat plate, a top plate, an elastic plate and an elastic adjusting component, a cavity is defined between the top plate and the seat plate, the rear section of the upper end of the elastic plate makes contact with the top plate, the elastic adjusting assembly comprises an adjusting seat, an adjusting piece and a transmission assembly, the adjusting seat is arranged in the cavity in a front-back movable mode, the upper end of the adjusting seat makes contact with the lower end of the elastic plate, and the adjusting piece is connected to the adjusting seat through the transmission assembly. The adjusting seat moves back and forth on the cavity under the control of the transmission assembly so as to adjust the bending position of the elastic plate; thus, the elastic plate is used for replacing a traditional spring structure, the elastic adjusting assembly is arranged in a matched mode to change the bending point position of the elastic plate, therefore, backrest force adjustment is achieved, the experience effect of a user is improved, meanwhile, the overall appearance of the product is flat, the overall size of the product is reduced, operation is easy, use is convenient, usability is good, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field technology of seat chassis especially is a seat elastic chassis structure. BACKGROUND

[0002] With the improvement of people's life quality, the requirement of the seat and other commonly used furniture is also higher and higher, mainly reflected in the use comfort; the use scene of the seat is many, especially in the office, all the time of people working is almost spent with the seat; usually, the seat chassis has pre-pressure, when the user sits on the seat, the seat chassis leans back by the corresponding angle, at the same time, the pressure of the seat chassis of users with different height and weight is different, and the leaning back strength of the seat is also different.

[0003] In the prior art, the inside of the seat chassis generally adopts a spring adjusting structure to realize the backrest elastic force function; however, the structure design is poor, because the pre-pressure design of the chassis of different seats is different, and the adjusting mode of the seat chassis is different, the volume of the spring adjusting structure is increased, the overall volume of the seat chassis is increased, which is not conducive to the elastic force adjusting operation of the seat chassis, the experience effect of the user is reduced, the usability is poor, and the application range is small.

[0004] Therefore, it is necessary to study a new technical scheme to solve the above problems. UTILITY MODEL CONTENT

[0005] Therefore, the utility model mainly aims at the defects of the prior art, and provides a seat elastic chassis structure, which uses an elastic plate to replace the traditional spring structure, cooperates with the setting of the elastic force adjusting assembly, changes the bending point position of the elastic plate, realizes the adjustment of the backrest force, improves the experience effect of the user, is simple to operate, convenient to use, good in usability, and wide in application range.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A seat elastic chassis structure, comprising a seat plate, a top plate, an elastic plate and an elastic force adjusting assembly; wherein: the top plate is arranged at the upper end of the seat plate, a cavity is formed between the top plate and the seat plate, the elastic plate and the elastic force adjusting assembly are arranged on the cavity, the elastic plate is arranged in front and back, the rear position of the upper end of the elastic plate is in contact with the top plate, the front position of the upper end of the elastic plate is fixed with the seat plate, the elastic force adjusting assembly is arranged at the front position of the lower end of the elastic plate, the elastic force adjusting assembly comprises an adjusting seat, an adjusting part and a transmission assembly, the adjusting seat is movably arranged on the cavity, the upper end of the adjusting seat is in contact with the lower end of the elastic plate, the adjusting part is connected to the adjusting seat through the transmission assembly, and the adjusting seat moves forward and backward on the cavity under the control of the transmission assembly to adjust the bending position of the elastic plate.

[0008] As a preferred scheme, the transmission assembly comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel and the driven wheel are rotatably arranged on the chamber and arranged at a front-rear interval, the transmission belt is sleeved on the driving wheel and the driven wheel, the transmission belt is provided with a first connecting part for connecting with the adjusting seat, the adjusting seat is provided with a second connecting part matched with the first connecting part, the first connecting part and the second connecting part are matched and connected with each other, the other end of the adjusting member is exposed outside the seat plate, one end of the adjusting member extends into the chamber and is connected to the driving wheel, and the other end of the adjusting member is provided with an operation part.

[0009] As a preferred scheme, the elastic plate is provided with two plates arranged at a left-right interval, and correspondingly, the adjusting seat and the transmission assembly are each provided with two plates arranged corresponding to the two elastic plates, and one end of the adjusting member is connected to the driving wheels of the two transmission assemblies.

[0010] As a preferred scheme, the elastic plate is a glass fiber elastic plate.

[0011] As a preferred scheme, the chamber is further provided with a lifting mechanism, the lifting mechanism comprises a fixed seat, a trigger member, a gas pressure rod and a first pull wire, the fixed seat is arranged at the center position of the chamber, the trigger member is rotatably arranged on the fixed seat through a rotating shaft, the front end of the trigger member is provided with a trigger part, the rear end of the trigger member is provided with a linkage part, the lower end of the seat plate is provided with an avoiding opening communicated with the chamber, the avoiding opening is located below the linkage part, one end of the first pull wire is connected to the linkage part, and the other end of the first pull wire extends out of the avoiding opening, the gas pressure rod has a trigger head, and the trigger head is located beside the trigger part, the first pull wire is pulled to rotate the trigger member on the fixed seat, and the trigger part is brought into contact with the trigger head of the gas pressure rod.

[0012] As a preferred scheme, a tail plate and a backrest locking assembly are further included, the tail plate is rotatably arranged on the seat plate, the backrest locking assembly is arranged on the chamber, the backrest locking assembly comprises a locking member, an elastic reset member and a second pull wire, the lower end of the locking member is rotatably arranged on the chamber, the rear end of the locking member is provided with a locking part, one end of the second pull wire is connected to the front end of the locking member, and the other end of the second pull wire extends out of the seat plate through the lower end of the chamber, the tail plate is provided with a plurality of lock grooves arranged at an interval along the rotating direction of the tail plate, the locking part is adapted to be positioned on one of the lock grooves, and the two ends of the elastic reset member act on the locking member and the chamber, respectively.

[0013] The utility model discloses have obvious advantages and beneficial effects compared with prior art, specifically speaking, from above technical scheme can know, it is mainly through the design of each component, utilize elastic plate to replace traditional spring structure, cooperate the setting of elastic force adjusting assembly, to change the bending point position of elastic plate, thereby realize the regulation of back force, improve the experience effect of user, simultaneously, product overall appearance is flat, reduce the volume of product whole, and the structure design is ingenious and reasonable, and simple operation is convenient to use, and the usability is good, and the scope of application is wide.

[0014] In order to more clearly set forth the structural features and efficacy of the utility model, below, combining with the specific embodiment to the utility model is explained in detail. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional schematic diagram of the embodiment of the utility model;

[0016] Fig. 2 It is the exploded view of the embodiment of the utility model;

[0017] Fig. 3 It is the first sectional view of the embodiment of the utility model;

[0018] Fig. 4 It is the second sectional view of the embodiment of the utility model.

[0019] Brief description of drawings:

[0020] 11, seat plate 12, top plate

[0021] 13, elastic plate 14, elastic force adjusting assembly

[0022] 141, adjusting seat 142, adjusting piece

[0023] 143, transmission assembly 144, driving wheel

[0024] 145, driven wheel 146, transmission belt

[0025] 147, first connecting portion 148, second connecting portion

[0026] 149, operation portion 15, chamber

[0027] 151, groove 152, cover plate

[0028] 153, avoiding mouth 161, fixed seat

[0029] 162, trigger piece 163, trigger portion

[0030] 164, linkage portion 17, tail plate

[0031] 18, backrest locking assembly 181, locking piece

[0032] 182, elastic reset piece 183, locking portion. DETAILED DESCRIPTION

[0033] Please refer to Figs. 1 to 4 The specific structure of the embodiment of the utility model is shown.

[0034] A kind of elastic bottom plate structure for seat, including seat plate 11, top plate 12, elastic plate 13 and elastic adjusting assembly 14;Wherein: the top plate 12 is set to the upper end of seat plate 11, chamber 15 is formed around between the top plate 12 and seat plate 11, the elastic plate 13 and elastic adjusting assembly 14 are all set on chamber 15, the elastic plate 13 is set to extend forward and backward, the upper end rear section position of the elastic plate 13 is in contact with top plate 12, the upper end front section position of the elastic plate 13 is fixed with seat plate 11;

[0035] The elastic adjusting assembly 14 is set to the lower end front section position of elastic plate 13, the elastic adjusting assembly 14 includes adjusting seat 141, adjusting piece 142 and transmission assembly 143, the adjusting seat 141 can be set to move forward and backward on chamber 15, the upper end of the adjusting seat 141 is in contact with the lower end of the elastic plate 13, the adjusting piece 142 is connected to adjusting seat 141 by transmission assembly 143, the adjusting seat 141 moves forward and backward on chamber 15 under the control of transmission assembly 143, to adjust the bending position of elastic plate 13;

[0036] Specifically, the transmission assembly 143 includes driving wheel 144, driven wheel 145 and transmission belt 146, the driving wheel 144, driven wheel 145 can be rotatably set on chamber 15 and are arranged with forward and backward spacing, the transmission belt 146 is sleeved on driving wheel 144, driven wheel 145, first connecting portion 147 for being connected with adjusting seat is arranged on the transmission belt 146, second connecting portion 148 matched with first connecting portion is arranged on the adjusting seat 141, the first connecting portion 147 and the second connecting portion 148 are matched and connected with each other, one end of the adjusting piece 142 extends into chamber and is connected to driving wheel 144, the other end of the adjusting piece 142 is exposed outside seat plate 11, the other end of the adjusting piece is provided with operating portion 149;

[0037] In the embodiment, the elastic plates 13 are arranged in two and are spaced apart left and right, and correspondingly, the adjusting seats 141 and the transmission assemblies 143 are also arranged in two and correspond to the two elastic plates 13, the two adjusting seats 141 are arranged in connection with each other, one end of the adjusting member 142 is connected with the driving wheels 144 of the two transmission assemblies 143, preferably, the elastic plates 13 are glass fiber elastic plates; in this way, through the design of the components, the elastic plates are used to replace the traditional spring structure, and the elastic force adjusting assembly is arranged to change the bending point position of the elastic plates, so that the backrest force is adjusted, the experience effect of the user is improved, meanwhile, the overall shape of the product is flat, the overall volume of the product is reduced, the structure design is ingenious and reasonable, the operation is simple, the use is convenient, the usability is good, and the application range is wide.

[0038] The lifting mechanism is arranged in the chamber 15, and comprises a fixing seat 161, a triggering member 162, a gas pressure rod and a first pull wire (not shown in the figure). The fixing seat 161 is arranged at the center position of the chamber 15. The triggering member 162 is rotatably arranged on the fixing seat 161 through a rotating shaft. The front end of the triggering member 162 is provided with a triggering part 163. The rear end of the triggering member 162 is provided with a linkage part 164. The lower end of the seat plate 11 is provided with an avoiding opening 153 which is communicated with the chamber. The avoiding opening 153 is located at the lower side of the linkage part 164. One end of the first pull wire is connected to the linkage part 164, and the other end of the first pull wire extends out of the avoiding opening 153. The gas pressure rod (not shown in the figure) is provided with a triggering head. The triggering head is located beside the triggering part 163. In use, the first pull wire is pulled to rotate the triggering member on the fixing seat, and the triggering part is brought into contact with the triggering head of the gas pressure rod. In this way, the arrangement of the lifting mechanism enables the seat to have a lifting function, so as to meet the use requirements of the user.

[0039] The tail plate 17 is rotatably arranged on the seat plate 11. The backrest locking assembly 18 is arranged on the chamber 15. The backrest locking assembly 18 comprises a locking member 181, an elastic reset member 182 and a second pull wire (not shown in the figure). The lower end of the locking member 181 is rotatably arranged on the chamber 15. The rear end of the locking member 181 is provided with a locking part 183. One end of the second pull wire is connected to the front end of the locking member 181, and the other end of the second pull wire extends out of the lower end of the chamber 15 to the seat plate 11 through the avoiding opening 153. The tail plate 17 is provided with a plurality of lock grooves (not shown in the figure) which are arranged at intervals along the rotating direction of the tail plate. The locking part 183 is fitted and located on one of the lock grooves. The two ends of the elastic reset member 182 act on the locking member 181 and the chamber 15 respectively.

[0040] In use, the second pull wire is pulled to rotate the linkage locking piece and make the locking part disengage from the locking groove, and after the tail plate is rotated to be adjusted, the second pull wire is released, the linkage locking piece is rotated under the elastic resetting action of the elastic resetting piece and makes the locking part positioned on the locking groove, so that the adjustment and locking of the tail plate are realized, and the multifunctional use of the product is realized.

[0041] Specifically, the chamber 15 is provided with a groove 151 corresponding to the locking piece, the groove 151 has a pivot joint part extending upward, the locking piece 181 is arranged at the upper end of the groove 151, the locking piece 181 is provided with a pivot hole matched and connected with the pivot joint part, and the elastic resetting piece 182 is arranged on the groove 151; and the chamber 15 is further provided with a positioning column located on one side of the groove, the upper end of the positioning column is provided with a cover plate 152, and the cover plate 152 is fixed on the positioning column through a connecting piece; in this way, the positioning column and the cover plate are arranged to protect and limit the locking piece, so as to ensure the stability of the locking piece in use.

[0042] The design focus of the utility model lies in that it mainly uses the elastic plate to replace the traditional spring structure through the design of various components, cooperates with the setting of the elastic adjusting assembly to change the bending point position of the elastic plate, thereby realizing the adjustment of the backrest force, improves the experience effect of the user, meanwhile, the overall shape of the product is flat, reduces the overall volume of the product, the structure design is ingenious and reasonable, the operation is simple, the use is convenient, the usability is good, and the application range is wide.

[0043] The above is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model, so any slight modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the range of the technical scheme of the utility model.

Claims

1. A resilient floor pan structure for a seat, characterized by: The utility model provides a seat, top plate, elastic plate and elastic adjusting assembly are included, wherein: The top plate is arranged on the upper end of the seat plate, a chamber is formed between the top plate and the seat plate, the elastic plate and the elastic adjusting assembly are arranged on the chamber, the elastic plate is arranged in front and back, the upper end of the elastic plate is in contact with the top plate, the upper end of the elastic plate is fixed with the seat plate, the elastic adjusting assembly is arranged on the lower end of the elastic plate, the elastic adjusting assembly includes adjusting seat, adjusting part and transmission assembly, the adjusting seat is movably arranged on the chamber, the upper end of the adjusting seat is in contact with the lower end of the elastic plate, the adjusting part is connected with the adjusting seat through the transmission assembly, The transmission assembly includes driving wheel, driven wheel and transmission belt, the driving wheel and the driven wheel are rotatably arranged on the chamber and are arranged at intervals in front and back, the transmission belt is sleeved on the driving wheel and the driven wheel, the transmission belt is provided with a first connecting part for connecting with the adjusting seat, the adjusting seat is provided with a second connecting part matched with the first connecting part, the first connecting part and the second connecting part are matched and connected with each other, one end of the adjusting part is connected with the driving wheel and extends into the chamber, the other end of the adjusting part is exposed outside the seat plate, the other end of the adjusting part is provided with an operation part, the adjusting seat moves forward and backward on the chamber under the control of the transmission assembly to adjust the bending position of the elastic plate.

2. A resilient seat pan structure according to claim 1, wherein: The elastic plate is provided with two elastic plates arranged at intervals left and right, correspondingly, the adjusting seat and the transmission assembly are provided with two adjusting seats and two transmission assemblies corresponding to the two elastic plates, one end of the adjusting part is connected with the driving wheels of the two transmission assemblies.

3. The resilient seat pan structure according to claim 1, wherein: The elastic plate is a glass fiber elastic plate.

4. The resilient seat pan structure of claim 1, wherein: The chamber is further provided with a lifting mechanism, the lifting mechanism includes a fixed seat, a trigger, a gas pressure rod and a first pull wire, the fixed seat is arranged at the center of the chamber, the trigger is rotatably arranged on the fixed seat through a rotating shaft, the front end of the trigger is provided with a trigger part, the rear end of the trigger is provided with a linkage part, the lower end of the seat plate is provided with an avoiding opening communicated with the chamber, the avoiding opening is located below the linkage part, one end of the first pull wire is connected to the linkage part, and the other end of the first pull wire extends out of the avoiding opening, the gas pressure rod has a trigger head, the trigger head is located beside the trigger part, the first pull wire is pulled to rotate the trigger on the fixed seat, and the trigger part is in contact with the trigger head of the gas pressure rod.

5. The resilient seat pan structure of claim 1, wherein: Further including a tail plate and a backrest locking assembly, the tail plate is rotatably arranged on the seat plate, the backrest locking assembly is arranged on the chamber, the backrest locking assembly includes a locking part, an elastic reset part and a second pull wire, the lower end of the locking part is rotatably arranged on the chamber, the rear end of the locking part is provided with a locking part, one end of the second pull wire is connected to the front end of the locking part, and the other end of the second pull wire extends out of the seat plate through the lower end of the chamber, a plurality of lock grooves are arranged on the tail plate at intervals along the rotating direction of the tail plate, the locking part is adaptively positioned on one of the lock grooves, and the elastic reset part acts on the locking part and the chamber respectively.

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