TWI519260B - Auxiliary seat - Google Patents

Description

Auxiliary seat

The present invention relates to an auxiliary seat; in particular, the present invention is an inductive power assisted seat having an auxiliary lift and sit down function.

According to a report by the National Development Council on the "Recommendation of the Republic of China Population", the National Development Council estimates that China's population structure is rapidly aging. It is estimated that in 2018, the elderly population in Taiwan will reach 14%, reaching the "aged society." In 2025, we entered the "super-age society". More than 20% of the population aged 65 or above will have more elderly people needing us to care and take care of. Therefore, in order to cope with the aging society, more and more elderly people need to take care of themselves, and getting up and sitting in daily life is the most important basic movement. Many elderly people fall accidents when they get up. With sitting down during the action.

In the current environment, the auxiliary seat can be more labor-saving and reduce the risk of falling, but today's commercially available auxiliary seats are mostly in the form of a single seat with a high sitting surface, and the appearance has obvious auxiliary features, reducing the willingness of the elderly to use. The shape is also awkward in the living room; while the sofa in the general living room is one of the most important furniture, but the sitting height of the sofa is low, which is not conducive to the elderly, nor does it conform to the general design principle. It is also possible to use the sofa as other family members, and it is necessary to design a sofa that assists in getting up and sitting down.

Therefore, the inventor has previously filed a related patent application for the pneumatic bar assisted lifting seat (the new M372119 of the Republic of China and the new M430212 of the Republic of China). The inventor is constantly creating The spirit of the new research, in the aforementioned technical foundation and current research results, the design of the use of sensors to control the lifting of the auxiliary lifting seat, more convenient to use the operator to meet the needs of the elderly; in addition, the inventor will also use The lifting mechanism is redesigned in a modular way so that it can be mounted on any type of seat or sofa, which will help mass production.

It is an object of the present invention to provide an auxiliary seat, such as an inductive electric assisted lift-up sofa seat suitable for elderly people, to improve the problems encountered by an elderly person when getting up or sitting down.

Another object of the present invention is to provide an auxiliary seat that utilizes a modularized push-pull rod set that can be mounted on any form of seat or sofa to solve the problem of mass production.

Another object of the present invention is to provide an auxiliary seat for lifting and lowering the sofa cushion by pushing the thrust of the rod group and the pulling force of the retracting rod. When sitting, the buttocks will first contact the raised cushion to avoid falling down. The situation occurs, and when the body is raised, the cushion is lifted forward and upward, which can assist the elderly person to get up and relieve the burden of physical strength when getting up, so that the purpose of assisting the elderly to get up and sit down smoothly can be achieved.

The auxiliary seat of the present invention includes components such as a seat frame, a seat cushion, a sensing assembly, and a lifting device. The seat frame further has a bearing portion and a backrest portion, and the backrest portion is adjacent to the bearing portion, and the seat cushion is disposed on the seat frame, and further has a receiving groove at the bottom surface of the seat cushion, and the receiving groove is provided with The sensing component can be used to sense the ride state of the user by sensing the design of the component, thereby achieving the purpose of driving the lifting device. In addition, at the bottom surface of the groove of the accommodating groove, a plate member may be further disposed to ensure the sensing result of the sensing component to avoid a misjudgment.

In addition, the lifting device in the auxiliary seat of the present invention is designed in a modular manner to improve the mass production of the product, and the lifting device further includes a positioning frame group, a fixing rod, a connecting rod, and the first a support frame, a second support frame and a push-pull rod set, wherein the positioning frame set is fixed in the carrying portion, and the positioning frame set has a first positioning component and a second positioning component, and the first positioning component is located in the positioning frame group At the top end portion, the second positioning member is located at a position of the middle of the positioning frame group; the fixing rod is coupled to the bottom of the positioning frame group, the connecting rod is disposed on the positioning frame group, and further, the connecting rod has a connecting member, and The fixing rod has a fixing member; the first supporting frame is disposed on the connecting rod, and the second supporting frame is coupled to the first supporting frame, wherein the first connecting frame is provided with a first connecting portion at the middle portion thereof. One end of the first support frame has a first joint end portion connected to the connecting member, the other end of the first support frame has a first pivot end portion, and further, one end of the second support frame has a second joint end portion, The other end of the second support frame has a second pivotal end portion, and the second pivotal end portion is pivotally connected to the first pivotal end portion; finally, the push rod group is disposed on the positioning frame group, respectively The second positioning component, the second joint end portion, the fixing component and the first joint portion are assembled, and the first support frame can be pushed or retracted by the push-up action or the cooperation of the push-pull rod group, and the second support frame is simultaneously linked The support frame enables the first support frame and the second support frame to be lifted up or folded downward.

Furthermore, the push-pull rod set in the auxiliary seat of the present invention includes a telescopic rod, a first fixing rod, a second fixing rod, and a coupling between the first fixing rod and the second fixing rod. a rod, wherein the first fixing rod is coupled to the second joint end, the second fixing rod is assembled to the second positioning member, and the telescopic rod is coupled between the first support frame and the fixed rod, The telescopic rod further includes a transmission component disposed on an end of the telescopic rod adjacent to the fixed component to provide a pushing force or a restoring force to push or retract the telescopic rod.

In addition to the above components, the seat cushion of the auxiliary seat of the present invention further includes a first seat cushion, a second seat cushion and a cushion, wherein the cushion is integrally fixed to the backrest portion, and the seat cushion is disposed on the first support frame, and the second seat cushion is disposed on the first support frame. Then disposed on the second support frame, and the first seat cushion and the second seat cushion are partially coupled to each other. In addition, the auxiliary seat further includes a first control switch and a second control switch, wherein the first control open relationship is disposed at a position of the upper portion of the backrest portion, and the second control open relationship is disposed at a position of the upper portion of the load bearing portion 11, The first control switch and the second control switch are electrically connected to the telescopic rod, thereby controlling the movement of the transmission component in the telescopic rod to achieve the purpose of pushing up or retracting the telescopic rod.

〔this invention〕

10‧‧‧ Chair frame

11‧‧‧Loading Department

12‧‧‧ Backrest

20‧‧‧ Chair cushion

21‧‧‧First cushion

22‧‧‧Second cushion

23‧‧‧Cushion

24‧‧‧ accommodating slots

25‧‧‧ boards

30‧‧‧Sensing components

40‧‧‧ lifting device

41‧‧‧ positioning frame set

411‧‧‧First positioning unit

412‧‧‧Second positioning unit

42‧‧‧Fixed rod

421‧‧‧Fixed parts

43‧‧‧ Connecting rod

431‧‧‧Connecting parts

44‧‧‧First support frame

441‧‧‧ First Link

442‧‧‧ first joint end

443‧‧‧First pivot end

45‧‧‧second support frame

451‧‧‧second joint end

452‧‧‧Second pivotal end

46‧‧‧Pushing rod group

461‧‧‧ Telescopic rod

462‧‧‧First fixed rod

463‧‧‧Second fixed rod

464‧‧‧ coupling rod

465‧‧‧Transmission components

50‧‧‧First control switch

60‧‧‧Second control switch

70‧‧‧ boards

[study]

a‧‧‧Put

b‧‧‧Frame

C‧‧‧ angle

1 is a side view of a conventional auxiliary seat; FIG. 2 is a side elevational view of an auxiliary seat embodiment of the present invention; FIG. 3 is a front elevational view and partial enlarged view of an embodiment of the auxiliary seat of the present invention; Figure 4 is a schematic exploded view of the lifting device of the present invention; Figure 5 is a schematic view showing the raised state of the lifting device of the present invention; and Figure 6 is a schematic view of the control unit of the present invention.

Referring to Figure 1, the inventor obtained the patent of the new M430212 of the Republic of China. It can be seen from the side view of the conventional auxiliary seat shown in Figure 1. In the process of pushing the push rod a, in order to avoid Because the angle of the push rod a is adjusted, the horizontal component is too large, and the power can be transmitted more effectively. Therefore, the frame b of the front section of the seat cushion is designed to have an angle c, so that the action can be smoothly performed. However, in order to solve the situation that the horizontal component is too large, the frame b having the angle c is designed, and the processing process needs to be increased in the manufacturing process, which is waste of material resources and labor costs, and reduces the product. Economic effects.

The auxiliary seat of the present invention, as shown in the embodiment of Figures 2 and 3, includes a seat frame 10, a seat cushion 20, a sensing assembly 30 and a lifting device 40. The chair frame 10 has a bearing portion 11 and a backrest portion 12, and the backrest portion 12 is adjacent to the carrying portion 11. The seat cushion 20 is disposed on the seat frame 10. The sensing component of the embodiment needs to be specifically described. The sensing system 30 is disposed in the accommodating groove 24, and the sensing component 30 is located at the bottom surface of the seat cushion 20, and more specifically, the accommodating groove 24 is disposed at the bottom surface of the seat cushion 20. The design between the chair frame 10 and the seat cushion 20 can be used to sense the riding state of the user, thereby achieving the purpose of driving the lifting device 40, and further, at the bottom surface of the receiving groove 24, There is a plate member 25, and the plate member 25 is a rigid material and abuts against the sensing component 30, thereby ensuring the sensing result of the sensing component 30 to avoid misjudgment; in addition, the lifting device 40 of the present invention is adopted. Designed in a modular way to increase the mass production of the product.

The design of the lifting device will be further explained below. Please refer to FIG. 4 at the same time. Since the lifting device is modular, it can be easily combined into a general seat or a sofa. The lifting device 40 includes a positioning frame group. 41. A fixing rod 42, a connecting rod 43, a first supporting frame 44, a second supporting frame 45, and a member of the push-roding rod group 46, wherein the positioning frame group 41 is a pair of triangular metal frame bodies in this embodiment. The two positioning brackets 41 are fixed in the carrying portion 11, that is, the two triangular brackets are respectively fixedly disposed on two sides of the inner surface of the carrying portion 11, and the positioning frame group 41 has a first positioning member 411 thereon. And the second positioning member 412 (ie, each of the triangular brackets has a first positioning member 411 and a second positioning member 412, but for simplicity of illustration, only one of the triangular brackets is indicated), wherein the first positioning member is located The top positioning portion of the positioning frame group 41 is located at the top end of the positioning frame group 41.

The fixing rod 42 described above is coupled to the bottom of the positioning frame group 41, and the connecting rod 43 Then, it is disposed on the positioning frame group 41. In more detail, the fixing rod 42 is located at the bottom of the carrying portion 11, and the connecting rod 43 is assembled with the first positioning member 411 of the positioning frame group 41, and further, the connecting rod 43 has In the embodiment of the present invention, the connecting member 431 is two, which are respectively disposed near the end of the connecting rod 43, and the fixing rod 42 has a fixing member 421. In the embodiment, the fixing member 421 is disposed in the embodiment. At the middle of the fixed rod 42.

The first support frame 44 is disposed on the connecting rod 43 and the second support frame 45 is coupled to the first support frame 44. The first support frame 44 is provided with a first connecting portion 441 at the middle portion of the first support frame 44. One end of a support frame 44 has a first joint end portion 442 that is coupled to the connecting member 431. The other end of the first support frame 44 has a first pivot end portion 443. Further, one end of the second support frame 45 has a first end. The second end portion 451 has a second pivot end 452, and the second pivot end 452 is pivotally connected to the first pivot end 443.

The above-mentioned push-pull rod set 46 is disposed on the positioning frame set 42. First, the push-pull rod set 46 is used as the main power source of the lifting device 40, so it must be separately associated with the second positioning member 412, The second joint end portion 451, the fixing member 421 and the first joint portion 441 are assembled, and the first support frame 44 can be pushed or retracted by the push-up action or the cooperation of the push-up lever group 46, and the second support is simultaneously linked. The frame 45 enables the first support frame 44 and the second support frame 45 to be lifted up or folded downward.

In the following, the connection relationship between the components of the push-rod group 46 will be further described. Referring to FIG. 5, the push-pull rod set 46 includes a telescopic rod 461, a first fixing rod 462, and a second fixing rod 463. And the coupling rod 464, wherein the coupling rod 464 is assembled between the first fixing rod 462 and the second fixing rod 463, and the first fixing rod 462 is assembled on the second joint end 451. The second fixing rod 463 is assembled on the second positioning member 412 of the positioning frame group 41; finally, the aforementioned telescopic rod 461 is Between the first support frame 44 and the fixed rod 42 , in detail, one end of the telescopic rod 461 is pivotally connected to the first joint portion 441 , and the other end of the telescopic rod 461 is pivotally fixed to the fixed rod 42 . On the component 421, in addition, the telescopic rod 461 further includes a transmission assembly 465 disposed on one end of the telescopic rod 461 adjacent to the fixing member 421 to provide a pushing force or a restoring force to push or retract the telescopic rod 461.

In addition to the above components, the seat cushion 20 further includes a first seat cushion 21, a second seat cushion 22 and a cushion 23, wherein the cushion 23 is integrally fixed to the backrest portion 12, and the first seat cushion 21 is disposed on the first support frame 44. The second seat cushion 22 is disposed on the second support frame 45, and the first seat cushion 21 and the second seat cushion 22 are partially coupled to each other. It is to be noted that the accommodating groove 24 is located at the bottom surface of the seat cushion 20 in the embodiment. In the embodiment, the accommodating groove 24 is located on the bottom surface of the second seat cushion 22, thereby the user is seated on the seat cushion 20. The sensing component 30 disposed on the bottom surface of the second seat cushion 22 can be used to sense the riding state of the user, thereby achieving the purpose of driving the lifting device 40.

In addition, as shown in FIG. 2 and FIG. 5 , the auxiliary control seat of the embodiment further includes a first control switch 50 and a second control switch 60 , wherein the first control switch 50 is disposed on the backrest portion 12 . The upper control switch 50 is electrically connected to the telescopic rod 461, so as to control the transmission assembly 462 in the telescopic rod 461 to achieve the purpose of pushing up the telescopic rod 461; and the second control switch 60 is set. The second control switch 50 is in parallel relationship with the first control switch 50, and is also electrically connected to the telescopic rod 461, and is also actuated by controlling the transmission component 462 in the telescopic rod 461. To achieve the purpose of pushing up the telescopic rod 461.

As shown in FIG. 6, the power source of the auxiliary seat of the embodiment is the telescopic rod 461. Therefore, in order to allow the user to operate smoothly, a circuit board 70 is disposed at an appropriate position on the seat frame 10, and the circuit board 70 is electrically Connecting the sensing component 30, the telescopic rod 461, and the first and second control switches 50, 60, The user can operate the lifting and lowering of the telescopic rod 461 by the first and second control switches 50, 60. In the implementation, the first and second control switches 50, 60 can be respectively disposed on the back of the chair and the armrest or other suitable places, so that the user can operate the seat surface up and down regardless of whether sitting or standing; in addition, The auxiliary seat has two functions. One is that when the user sits down, the raised seat cushion 20 can be automatically lowered to the positioning position, and the second is that when the user gets up and leaves, the seat surface will automatically fall back to the position. The function.

A specific embodiment of the sensing component 30 of the present invention is to provide two serially connected micro-switches under the seat surface of the seat cushion 20 as an element for controlling the seat surface of the seat cushion 20 to descend; when the user wants to sit down, To avoid falling down, the user can first use the first control switch 50, 60 on the back of the chair to raise the seat surface, and first rest the buttocks on the seat cushion 20. After the user is seated, the seat cushion 20 will Automatically descend to positioning to complete the action. When the seating surface of the seat cushion 20 is subjected to an average force down, the sensing assembly 30 (e.g., two microswitches) can be activated. The purpose of the series connection of the micro switch is to avoid accidental contact. When the user accidentally touches the seat cushion 20, the two micro-switches cannot be pressed at the same time because of uneven force, and the circuit will not be turned on. 20 will not fall; in addition, for safety reasons, a delay program is designed on the circuit board 70. When both micro-switches are pressed, it takes 3 seconds to continue pressing, and the seat surface will be pressed. begin descending.

In the setting of the automatic homing function, when the seat cushion 20 is raised, the previously pressed micro switch is released, and after 10 minutes of unmanned operation, the telescopic rod 461 is controlled by the circuit board 70, and the seat cushion 20 is automatically Drop back to position.

In summary, it can be seen that the telescopic rod 461 and the transmission assembly 465 in the push-rod group 46 (which can be used in the implementation of the electric linear push rod) serve as a power source for the lifting and lowering of the seat cushion 20 of the auxiliary seat, by pushing the rod group. The thrust of the telescopic rod 461 of 46 and the pulling force of the retraction force lift the first cushion 21 and the second cushion 22 of the auxiliary seat to achieve the purpose of assisting the elderly to get up and sit down smoothly. After the extension rod 461 is pushed out, the first support frame 44 and the second support frame 45 are linked, and the second support frame 45 is coupled by the first fixing rod 462, the second fixing rod 463 and the coupling rod 464. Providing a supporting effect, and having an angle between the first support frame 44 and the second support frame 45, and the first seat cushion 21 and the second seat cushion 22 on the first support frame 44 and the second support frame 45 are only between each other The parts are connected, so that the first support frame 44 and the second support frame 45 can be combined to form an angled support surface, so that the user can get up smoothly. Otherwise, after the extension rod 461 is retracted, the first support frame 44 and the first support frame are linked. The support frame 45 can support the user sitting on the first seat cushion 21 and the second seat cushion 22 to sit down slowly by the linkage of the first fixing rod 462, the second fixing rod 463 and the coupling rod 464. There is no situation of falling down. In addition, since the power source used in the embodiment of the present invention can be, for example, an electric linear push rod, in order to allow the user to operate smoothly, including two sets of control buttons to control the telescopic rod 461 and the transmission assembly 465, in the above implementation In the example, the two sets of control buttons are respectively a first control switch 50 and a second control switch 60, and the two sets of control switches are respectively disposed at the upper position of the backrest portion 12 and the upper portion of the load bearing portion 11 (ie, the seat back) And the armrest) allows the user to manipulate the seat surface of the seat cushion 20 to rise regardless of the sitting or standing state. Further, when the user wants to perform the sitting movement, after the user touches the second seat cushion 22, After the sensing component 30 on the bottom surface of the second seat cushion 22 detects the signal, the sitting surface of the raised seat cushion 20 can be automatically lowered to the positioning, or when the user gets up and leaves for a period of time, the sitting surface automatically descends to the position. .

For the lifting device 40 of the auxiliary seat, the invention adopts a modular design, and the lifting device 40 is an independent mechanism, which can be applied to a plurality of wooden frames in the sofa, as long as the positioning frame group 41, the fixing rod 42, and the connection The rods 43, the first support frame 44, the second support frame 45, and the members of the push-pull rod set 46 are screwed to complete the installation. Consider the cost, manpower, time resources required for the future development of the product, as well as the accuracy of the installation and positioning of the lifting device 40 and the strength of the structure. In the present embodiment, the positioning frame group 41 in the lifting device 40 is a pair of triangular metal frame bodies, which improves the overall strength in addition to the process of reducing the firing.

In addition, according to the structure of the embodiment of the present invention, 20 subjects were compared when using the assisting function when performing the sitting motion, and the angle of the trunk leaning forward when using the auxiliary function was found, and 20 subjects were not using the auxiliary function. At the time of sitting, the average torso forward angle was 48.8 degrees, and after using the auxiliary function, the average torso forward angle of sitting was 45.5 degrees. The average angle differs by 3.3 degrees, and the data indicates that, in contrast, the auxiliary function makes the subject less laborious when performing the sitting action. After the dependent sample t test, its significance p value=0.018<0.05, reaching a significant standard, as shown in the following table, it is speculated that because the auxiliary function is opened, the cushion rises and approaches the subject, so that the subject does not need to push the trunk too much. Tilt your hips to the support and keep your body in a stable condition.

Observing the maximum value of the forward tilt angle when sitting down, it can be found that the maximum forward tilt angle is 62 degrees when using the auxiliary seat of the present invention, especially when the sitting condition of the sample is found, and the sitting function is not used. At the time, the average torso forward angle was 54.3 degrees, but there was a sitting down situation. It was speculated that it may be due to the subject’s own habit of sitting habits, or because the torso strategy of sitting down was wrong, and the body was chosen to fall. Not sitting down smoothly on the chair. On the other hand, after the subject used the auxiliary function, the seat surface was raised, and the subject smoothly leaned the buttocks against the seat cushion, thereby causing a large difference in the angle of the trunk forward.

When the auxiliary function is used to help the subject to sit down, the lower limbs will not be subjected to excessive torque because the seat surface is higher and closer to the buttocks, and the subject tends to lean when sitting down. Therefore, the action of sitting down is smoother, and the situation of falling down is not observed.

Comparing 20 subjects using the non-auxiliary sofa prototype, and the auxiliary seat of the present invention, it was found that when the subject did not use the auxiliary function to perform the lifting task, the average forward tilt angle of the 20-bit was 43.5 degrees, and the standard deviation was 4.12. When the subject got up using the auxiliary function, the average forward rake angle of the 20 digits was 37.3 degrees, and the standard deviation was 7.53. The average difference between the two is 6.2 degrees. The angle of the starting angle indicates that when the subject gets up using the auxiliary function, it is less labor-saving than when the auxiliary function is not used. Through the dependent sample t test, its significance p = 0.00 < 0.05, reaching a significant standard. It is speculated that the auxiliary function will raise the buttocks of the subject, and the power of the electric push rod will share the force used by the lower limbs, so that the subject can stand up without performing the compensatory movement of the trunk forward, so when getting up, The forward tilt angle of the trunk is smaller than the lower one.

The present invention has been described by the above-described related embodiments, but the above embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, modifications and equivalents of the spirit and scope of the invention are included in the scope of the invention.

10‧‧‧ Chair frame

11‧‧‧Loading Department

12‧‧‧ Backrest

20‧‧‧ Chair cushion

21‧‧‧First cushion

22‧‧‧Second cushion

23‧‧‧Cushion

40‧‧‧ lifting device

41‧‧‧ positioning frame set

421‧‧‧Fixed parts

43‧‧‧ Connecting rod

431‧‧‧Connecting parts

44‧‧‧First support frame

441‧‧‧ First Link

442‧‧‧ first joint end

443‧‧‧First pivot end

45‧‧‧second support frame

451‧‧‧second joint end

452‧‧‧Second pivotal end

46‧‧‧Pushing rod group

461‧‧‧ Telescopic rod

462‧‧‧First fixed rod

463‧‧‧Second fixed rod

464‧‧‧ coupling rod

465‧‧‧Transmission components

50‧‧‧First control switch

60‧‧‧Second control switch

Claims (12)

An auxiliary seat includes: a chair frame including a carrying portion and a backrest portion, the backrest portion is adjacent to the carrying portion; a seat cushion disposed on the chair frame; a sensing component a lifting device is disposed on the bottom surface of the seat cushion and located between the seat frame and the seat cushion; and a lifting device is disposed in the carrying portion, the lifting device comprises: a positioning frame group fixedly disposed in the bearing portion On the two sides of the surface, the positioning frame group has a first positioning component and a second positioning component, wherein the first positioning component is located at a top end portion of the positioning frame group, and the second positioning component is located at the positioning frame a fixing rod is coupled to the bottom of the positioning frame and located at the bottom of the bearing portion, the fixing rod further has a fixing component; a connecting rod is disposed on the positioning frame group And connecting with the first positioning component, and the connecting rod further has a connecting component; a first supporting frame is disposed on the connecting rod, wherein the first supporting frame has a first connecting portion at a middle portion thereof And one end of the first support frame has a first joint end, the other end of the first support frame has a first pivot end, and the first joint end is coupled to the connecting component; a second support frame is coupled to the first a support frame, and one end of the second support frame has a second joint end, and the other end of the second support frame has a second pivot end, and the second pivot end is connected to the first a pivoting end portion is pivotally connected to the positioning frame group, and is respectively coupled to the second positioning component, the second coupling end portion, the fixing component and the first connecting portion, The first support frame can be pushed or retracted by the push-up action or the cooperative action of the push-pull rod set, and the second support frame is linked at the same time, so that the first support frame and the second support frame can be lifted upwards. The purpose of raising or lowering; and a first control switch is disposed at the upper portion of the backrest portion, electrically connected to the push-roding rod set and the sensing component, thereby controlling the receiving rod group or receiving the sensing state of the sensing component To control the push rod set. The auxiliary seat of claim 1, wherein the seat cushion further comprises a first seat cushion and a second seat cushion, and the first seat cushion is disposed on the first support frame, and the second seat cushion is And disposed on the second support frame, and the first seat cushion and the second seat cushion are partially coupled to each other. The auxiliary seat according to the second aspect of the invention, wherein the bottom surface of the second seat is provided with a receiving groove, and the sensing component is disposed in the receiving groove. The auxiliary seat according to claim 3, wherein a bottom plate is provided at a bottom surface of the groove of the receiving groove, and the sensing component abuts the plate. The auxiliary seat according to claim 1 or 2, wherein the seat cushion further comprises a cushion integrally fixed to the backrest portion. The auxiliary seat according to claim 2, wherein the push-pull rod set comprises: a telescopic rod coupled between the first support frame and the fixed rod; a first fixed rod, assembled On the second joint end; a second fixing rod is assembled on the second positioning member; and a coupling rod is coupled between the first fixing rod and the second fixing rod . The auxiliary seat according to claim 6, wherein one end of the telescopic rod is pivotally connected to the first joint portion, and the other end of the telescopic rod is pivotally connected to the fixing member. The auxiliary seat of claim 7, wherein the telescopic rod further comprises a transmission component disposed on an end of the telescopic rod adjacent to the fixing component, thereby providing a pushing force or a restoring force to push Extend or retract the telescopic rod. The auxiliary seat according to claim 7, wherein the first control opening is electrically connected to the telescopic rod, thereby controlling the transmission component in the telescopic rod. The auxiliary seat according to claim 1 or 9, further comprising a second control switch disposed at an upper position of the carrying portion, and the second control switch is also electrically connected to the extension A reduction rod is used to control the transmission assembly in the telescopic rod. The auxiliary seat according to claim 10, further comprising a circuit board disposed on the chair frame, the circuit board electrically connecting the sensing component, the telescopic rod and the first and second control switches . The auxiliary seat according to claim 1, wherein the positioning frame assembly comprises a pair of triangular metal frame bodies.