Seat

Abstract

The seat provided by the utility model comprises the bracket, and the seat plate, the back plate, the counterweight part and the rotating part which are positioned on the bracket, and the seat plate is turned over relative to the bracket through the rotating part, so that the seat plate has a first state in which the counterweight part is driven to abut against the back plate and a second state in which the counterweight part is driven to be separated from the back plate; the balance weight part is located at the tail end of the seat plate and protrudes out of the upper end face of the seat plate so that the balance weight part can abut against the back plate in the first state, the upper end face of the balance weight part is made of soft materials, and when the balance weight part is switched to the first state, the upper end face of the balance weight part makes contact with the lower end face of the back plate to form a first elastic buffer area. On the one hand, impact sound and vibration generated by contact of the seat plate and the back plate can be avoided, noise can be effectively avoided, the mute effect is achieved, on the other hand, impact force caused by direct collision of the seat plate and the back plate can be reduced, the buffering protection effect during overturning is achieved, the influence on abrasion of the contact position of the back plate and the seat plate due to frequent overturning is effectively reduced, and the service life of the seat plate is prolonged. Therefore, the service life of the seat is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, in particular to a seat. BACKGROUND

[0002] At present, in order to improve space utilization and cleaning convenience, university auditorium, lecture hall and report hall and other places generally adopt the seat with automatic turnover function. However, when the user leaves the seat, these seats are quickly automatically turned over and folded, resulting in noise due to the rapid collision of the seat plate and the back plate structure, which seriously affects the classroom quality and user experience. In addition, most of such automatic folding seats adopt torsional spring structure at the connecting part of the seat plate and the support to realize automatic turnover. But this design is easy to wear out with time, not only increases the risk of equipment damage, but also frequently appears abnormal sound problem in the later use process, further increases noise. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a seat, which solves the problem of loud noise when the existing seat is turned over.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A seat, comprising a support, a seat plate located on the support, a back plate, a counterweight part and a rotating part, the seat plate can be turned over relative to the support through the rotating part, the counterweight part is connected with the seat plate, the seat plate has a first state of driving the counterweight part to abut against the back plate and a second state of driving the counterweight part to separate from the back plate, the counterweight part is located at the end of the seat plate and protrudes from the upper end surface of the seat plate, so that the counterweight part abuts against the back plate in the first state.

[0006] Wherein, the upper end surface of the counterweight part is made of soft material, so that the upper end surface of the counterweight part abuts against the lower end surface of the back plate to form a first elastic buffer zone when the seat plate switches to the first state.

[0007] Further, the number of the counterweight part is one, which is located at the end of the seat plate and extends outward along the first center line of the seat plate, wherein the direction of the first center line of the seat plate is perpendicular to the direction of the turning shaft of the seat plate around the rotating part.

[0008] The counterweight part is several parts, which are all located at the end of the seat plate and symmetrically arranged along the first center line of the seat plate, wherein the direction of the first center line of the seat plate is perpendicular to the direction of the turning shaft of the seat plate around the rotating part.

[0009] Further, the counterweight part comprises a counterweight layer and a buffer layer made of soft material, the buffer layer covers and is bonded to the upper surface of the counterweight layer, and the counterweight layer is fixedly connected to the upper surface of the seat plate.

[0010] Further, the counterweight part is detachably fixedly connected to the seat plate.

[0011] Further, the rotating part is located between the counterweight part and a second middle line of the seat plate, and the direction of the second middle line is the same as the direction of the turning shaft of the seat plate around the rotating part.

[0012] Further, the rotating part comprises a rotating shaft assembly, the rotating shaft assembly is connected to the seat plate, the inner wall of the support is provided with a mounting through hole, and the rotating shaft assembly is rotationally connected to the mounting through hole to drive the seat plate to realize switching between the first state and the second state around the support.

[0013] Further, the rotating shaft assembly comprises a rotating shaft fixing member and a rotating shaft body, the rotating shaft fixing member is fixedly connected to the lower end surface of the seat plate, the rotating shaft fixing member has an accommodation cavity for accommodating the rotating shaft body, one end of the rotating shaft body is rotationally connected to the accommodation cavity, and the other end of the rotating shaft body is rotationally connected to the mounting through hole.

[0014] Further, the support comprises a plurality of branch supports arranged side by side, the seat plate, the back plate and the counterweight part are connected between two adjacent branch supports, two adjacent seats share the same branch support, and the rotating shaft assembly is arranged on the opposite surfaces of the two branch supports of the same seat.

[0015] Further, the rotating shaft assembly is a mute damping rotating shaft assembly.

[0016] Further, the surface of the back plate is provided with a back pad, so that when switched to the second state, the contact surface of the seat plate and the back pad forms a second elastic buffer zone.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] The utility model provides a seat, including support, the seat plate of being located on the support, backboard, counterweight part and rotation part, make the seat plate overturn relative support through rotation part, make the seat plate have the first state of counterweight part and backboard and drive counterweight part and backboard separate second state, counterweight part is located the end of seat plate and protrudes from the upper end surface of seat plate to counterweight part and backboard when the first state, and the upper end surface of counterweight part uses soft material, when switching for the first state, the upper end surface of counterweight part and the lower end surface of backboard contact and form first elastic buffer zone, on one hand, can avoid the impact sound and vibration produced when the seat plate and backboard contact, further effectively avoid the noise generation, obtain the quiet effect, on the other hand, can reduce the impact force brought by the seat plate direct collision backboard, play the buffer protection effect when overturning, effectively reduce the influence of wearing and tearing of the contact of backboard and seat plate because of frequent overturning use, thereby prolong the service life of seat. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 The structural schematic diagram of the seat provided in one embodiment of the utility model.

[0021] Figure 2 The structural schematic diagram of the seat provided in one embodiment of the utility model.

[0022] Figure 3 The structural schematic diagram of the seat provided in one embodiment of the utility model.

[0023] Figure 4 The structural schematic diagram of the seat provided in one embodiment of the utility model.

[0024] Explanation of reference signs:

[0025] 1, support, 11, mounting through hole, 12, branch support, 2, seat plate, 3, backboard, 31, back cushion, 4, counterweight part, 5, rotation part, 51, pivot assembly, 511, pivot fixing piece, 512, pivot body, 6, first center line, 7, second center line. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] As shown in the accompanying Figure 1 to the accompanying Figure 3 , a seat includes a support 1, a seat plate 2 located on the support 1, a back plate 3, a counterweight part 4 and a rotating part 5, based on the principle of lever, with the rotating part 5 as the fulcrum, the seat plate 2 can be flipped relative to the support 1 through the rotating part 5, so that the seat plate 2 has a first state of driving the counterweight part 4 to abut against the back plate 3 and a second state of driving the counterweight part 4 to separate from the back plate 3. In one embodiment, the rotating part 5 is in the form of a rotating shaft to flip the seat plate 2 around the support 1; in another embodiment, the rotating part 5 is in the form of a hinge to flip the seat plate 2 around the support 1. The counterweight part 4 is located at the end of the seat plate 2 and protrudes from the upper end surface of the seat plate 2, so that the counterweight part 4 abuts against the back plate 3 in the first state, and the upper end surface of the counterweight part 4 is made of soft material, so that when the seat plate 2 is switched to the first state, the upper end surface of the counterweight part 4 contacts the lower end surface of the back plate 3 to form a first elastic buffer zone, avoiding direct impact of the seat plate 2 on the back plate 3. Among them, the soft material can be rubber, silicone and sponge and the like, and the user can select according to the actual use, which is not limited here.

[0030] Specifically, as shown in the accompanying Figure 3As shown, when the seat is in an unused state, i.e., the second state, because the counterweight part 4 is located at the end of the seat plate 2, the overall center of gravity of the seat plate 2 in the second state is low and close to the ground, not only can the seat be stabilized in the second state, but also can improve the stability of the seat and reduce the risk of accidental overturning. When the user uses the seat, the force is applied to the side of the seat plate 2 away from the counterweight part 4, so that the seat plate 2 rotates counterclockwise around the support 1 through the rotating part 5, at this time the weight of the counterweight part 4 helps to make the rotation more stable, the counterweight part 4 rotates with the seat plate 2, as the seat plate 2 gradually approaches the horizontal position with the ground, the soft upper end surface of the counterweight part 4 will contact the lower end surface of the back plate 3, forming a first elastic buffer zone, at this time the first state is switched, as shown in FIG. 2. Figure 2 As shown, when the user gets up and leaves the seat, at this time there is no longer an external force to support the seat plate 2 to remain in a horizontal position, the gravity of the counterweight part 4 becomes a driving force, which will again drive the seat plate 2 to rotate clockwise around the support 1 through the rotating part 5, without relying on elastic elements such as springs to achieve automatic reset of the seat plate 2 to the second state, as shown in FIG. 1. Figure 3

[0031] The seat of the utility model, as shown in Figure 2 and as shown in Figure 3 , the seat plate 2 is turned relative to the support 1 through the rotating part 5, so that the seat plate 2 completes the switching between the first state and the second state, and the upper end surface of the counterweight part 4 is made of soft material, so that when the seat is switched to the first state, the upper end surface of the counterweight part 4 contacts the lower end surface of the back plate 3 to form a first elastic buffer zone. On the one hand, it can avoid the impact sound and vibration caused by the contact between the seat plate 2 and the back plate 3, thereby effectively avoiding noise and obtaining a mute effect. On the other hand, it can reduce the impact force caused by the direct collision of the seat plate 2 with the back plate 3, play a buffering protection role when turning over, effectively reduce the influence of wear and tear at the contact between the back plate 3 and the seat plate 2 due to frequent turning over, thereby prolonging the service life of the seat. In addition, the traditional automatic turning connection structure is a traditional torsional spring structure, which is prone to elastic failure or fracture due to metal fatigue, and may produce abnormal noise due to friction in frequent use. The combination of the counterweight part 4 and the rotating part 5 can avoid material fatigue risk and avoid noise caused by metal friction.

[0032] ​In some embodiments of the utility model, the number of counterweight parts 4 is one, and the design of single counterweight part 4 can effectively simplify the seat structure, so that the overall structure of the seat is more compact. The counterweight part 4 is located at the end of the seat plate 2 and extends symmetrically outward along the first center line 6 of the seat plate 2, so that the weight distribution of the counterweight part 4 on the seat is more uniform, further enhancing the overall balance and stability of the seat. The first center line 6 of the seat plate 2 is perpendicular to the direction of the rotation axis of the rotating part 5. Alternatively, the counterweight part 4 is several parts, all of which are located at the end of the seat plate 2 to more evenly distribute the weight. Due to the existence of multiple first elastic buffers, the multiple counterweight parts 4 can better disperse the impact force exerted by the back plate 3 in the first state, avoid material fatigue or damage to the counterweight part 4 caused by single-point overload, further enhance the shock-absorbing effect, and protect the seat plate 2. In addition, after the seat is used for a long time, due to the redundant design of the counterweight part 4, if a certain counterweight part 4 is damaged, other counterweight parts 4 can still be used normally. The several counterweight parts 4 are all located at the end of the side of the seat plate 2 close to the rotating part 5 and are symmetrically arranged along the first center line 6 of the seat plate 2. Similarly, the first center line 6 of the seat plate 2 is perpendicular to the direction of the rotation axis of the rotating part 5. Specifically, when switched to the first state, the upper end surface of at least two counterweight parts 4 symmetrically arranged along the first center line 6 is in contact with the lower end surface of the back plate 3 to achieve the effect of silence and buffering.

[0033] In some embodiments of the utility model, the counterweight part 4 comprises a counterweight layer and a buffer layer made of soft material, the buffer layer covers and is bonded to the upper surface of the counterweight layer, so that the buffer layer abuts against the back plate 3 in the first state, and the counterweight layer is fixedly connected to the upper surface of the seat plate. In one implementation, the counterweight layer and the buffer layer are arranged in an upper-lower splicing manner; in another implementation, the buffer layer is wrapped around the outer periphery of the counterweight layer.

[0034] In some embodiments of the utility model, the counterweight part 4 is detachably connected to the seat plate 2. On the one hand, different weights of counterweight parts 4 can be replaced according to the use requirements to adapt to different application scenarios, such as use by children in primary schools or use by adults in universities, to further ensure the stability of the seat plate 2 when it is flipped. On the other hand, when the surface of the counterweight part 4 is worn after the seat is used for a long time, the counterweight part 4 can be individually replaced without replacing the entire seat plate 2, effectively reducing the maintenance cost.

[0035] In some embodiments of the utility model, as shown in FIG. 4, the counterweight part 4 comprises a counterweight layer 41 and a buffer layer 42 made of soft material. Figure 1As shown, the rotating part 5 is located between the counterweight part 4 and the second center line 7 of the seat plate 3, so as to position the overturning shaft of the seat plate rotating around the support between the counterweight part 4 and the second center line 7 of the seat plate 3, which can optimize the gravity center distribution of the seat plate 2, and can reduce the torque required by the user to adjust the seat plate 3, and only a small overturning force can overturn the seat plate 3 to the first state, and when the user leaves the seat, the counterweight part 4 can play a role to form an automatic reset trend to switch to the second state. It is worth noting that the direction of the second center line 7 is the same as the direction of the overturning shaft of the seat plate 3 around the rotating part 5.

[0036] In some embodiments of the present application, as shown in the accompanying drawings Figure 2 and the accompanying drawings Figure 3 As shown, the rotating part 5 includes a rotating shaft assembly 51, the rotating shaft assembly 51 is connected with the seat plate 2, the inner wall of the support 1 is provided with a mounting through hole 11, and the rotating shaft assembly 51 is rotationally connected with the mounting through hole 11. The closed through hole design can eliminate the offset of the rotating shaft assembly 51 in the direction perpendicular to the axial direction, avoid the jamming or abnormal sound caused by the shaft center shaking when the seat plate 2 is overturned, and ensure the structural stability of the seat. When the seat plate 2 needs to switch between the first state and the second state, the rotating shaft assembly 51 rotates in the mounting through hole 11 to drive the seat plate 2 to overturn around the support 1.

[0037] In some embodiments of the present application, as shown in the accompanying drawings Figure 2 and the accompanying drawings Figure 3 As shown, the rotating shaft assembly 51 includes a rotating shaft fixing part 511 and a rotating shaft body 512, the rotating shaft fixing part 511 is fixedly connected with the lower end surface of the seat plate 2, the rotating shaft fixing part 511 has a containing cavity for containing the rotating shaft body 512, one end of the rotating shaft body 512 is rotationally connected in the containing cavity, so as to avoid the stress concentration caused by the direct rigid connection between the seat plate 2 and the rotating shaft body 512, reduce the deformation risk of the seat plate 2, and the other end is rotationally connected in the mounting through hole 11. The inner wall of the containing cavity can be pre-coated with a lubricating coating to further ensure smooth overturning and avoid noise caused by friction. Preferably, the rotating shaft fixing part 511 can be detached from the seat plate 2, when the rotating shaft body 512 is worn out due to long-term use, the rotating shaft fixing part 511 is detached and directly pulled out from the mounting through hole 11 for replacement, without the need to disassemble the entire seat plate 2.

[0038] In some embodiments of the present application, as shown in the accompanying drawings Figure 4 In order to save materials and space, a plurality of seats are combined to form a row of seats, the support 1 includes a plurality of parallelly arranged sub-supports 12, and the seat plate 2, the back plate 3 and the counterweight part 4 are connected between two adjacent sub-supports 12, and the two adjacent seats share the same sub-support 12, so that the structures of the adjacent seats support each other, improving the stability of the row of seats, and the rotating shaft assembly 51 is arranged on the opposite surfaces of the two sub-supports 12 of the same seat, and the seat plate 2 can be overturned relative to the sub-support 12 through the rotating shaft assembly 51.

[0039] In some embodiments of this utility model, when the environment is sensitive to noise, in order to further avoid noise caused by friction when the seat plate 2 is flipped, the rotating shaft assembly 51 is selected as a silent damping rotating shaft assembly so that the seat plate 2 is almost silent when flipped.

[0040] In some embodiments of this utility model, as shown in the appendix Figure 1 To be continued Figure 3 As shown, a back pad 31 is provided on the surface of the back panel 3 facing the seat panel 2. When the seat panel 2 is switched to the second state, the contact surface between the seat panel 2 and the back pad 31 forms a second elastic buffer zone. On the one hand, this effectively reduces noise when the seat panel 2 and the back panel 3 are in contact in the second state, providing a quieter user environment. On the other hand, the back pad 31 can absorb impact forces, reducing wear caused by direct collision between the seat panel 2 and the back panel 3, and extending the service life of the seat panel 2 and the back panel 3. Preferably, the back pad 31 is made of soft materials such as sponge or rubber. Users can choose according to their actual usage, and no limitation is made here.

[0041] In some embodiments of this utility model, as shown in the appendix Figure 1 As shown, the bottom of the bracket 1 is provided with bolt holes. The bracket 1 is fixed to the ground by bolts to prevent the seat from moving or tipping over due to external forces, and to facilitate the quick installation or removal of the seat.

[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A type of seat, characterized in that, The device includes a support frame, a seat plate, a back plate, a counterweight, and a rotating part. The seat plate can be flipped relative to the support frame via the rotating part. The counterweight is connected to the seat plate. The seat plate has a first state in which the counterweight abuts against the back plate and a second state in which the counterweight separates from the back plate. The counterweight is located at the end of the seat plate and protrudes from the upper surface of the seat plate, so that in the first state the counterweight abuts against the back plate. The upper surface of the counterweight is made of a soft material, so that when the seat plate is switched to the first state, the upper surface of the counterweight abuts against the lower surface of the back plate to form a first elastic buffer zone.

2. The seat as described in claim 1, characterized in that, The counterweight is a single unit located at the end of the seat plate and extending symmetrically outward along the first centerline of the seat plate, wherein the direction of the first centerline of the seat plate is perpendicular to the direction of the seat plate about the rotation axis of the rotating part; or The counterweight consists of several separate parts, all located at the end of the seat plate and symmetrically arranged along the first center line of the seat plate, wherein the direction of the first center line of the seat plate is perpendicular to the direction of the rotation axis of the seat plate around the rotating part.

3. The seat as described in claim 1, characterized in that, The counterweight includes a counterweight layer and a buffer layer made of soft material. The buffer layer covers and is bonded to the upper surface of the counterweight layer, and the counterweight layer is fixedly connected to the upper surface of the seat plate.

4. The seat as described in claim 3, characterized in that, The counterweight is detachably and fixedly connected to the seat plate.

5. The seat as described in claim 1, characterized in that, The rotating part is located between the counterweight part and the second centerline of the seat plate, and the direction of the second centerline is the same as the direction of the rotation axis of the seat plate around the rotating part.

6. The seat as claimed in claim 1, characterized in that, The rotating part includes a rotating shaft assembly, which is connected to the base plate. The inner wall of the bracket is provided with a mounting through hole. The rotating shaft assembly is rotatably connected to the mounting through hole to drive the base plate to rotate around the bracket to switch between the first state and the second state.

7. The seat as described in claim 6, characterized in that, The rotating shaft assembly includes a rotating shaft fixing component and a rotating shaft body. The rotating shaft fixing component is fixedly connected to the lower end face of the base plate. The rotating shaft fixing component has a receiving cavity for accommodating part of the rotating shaft body. One end of the rotating shaft body is rotatably connected to the receiving cavity, and the other end is rotatably connected to the mounting through hole.

8. The seat as described in claim 6, characterized in that, The support includes multiple sub-supports arranged side by side, and the seat plate, the back plate and the counterweight are connected between two adjacent sub-supports. Two adjacent seats share the same sub-support, and the pivot assembly is arranged on the opposite surfaces of two sub-supports of the same seat.

9. The seat as claimed in claim 6, characterized in that, The shaft assembly is a silent damping shaft assembly.

10. The seat as claimed in claim 1, characterized in that, The surface of the back plate is provided with a back pad so that when switching to the second state, the contact surface between the seat plate and the back pad forms a second elastic buffer zone.

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