A dual-mode lifting seesaw

Abstract

The present invention discloses a dual-mode lifting seesaw. The adult chair and the children's chair are linked by a connecting rod. There are an upper frame rotating shaft, a middle frame rotating shaft, and a lower frame rotating shaft provided at the left side of the support. There is a vertical chute provided at the right side of the support. There are a chair upper rotating shaft, a chair middle rotating shaft, and a chair lower rotating shaft provided on the adult chair. The middle connecting rod includes a horizontal part and an inclined part. A rod chute is provided on the inclined part and the rod chute is located outside the vertical chute. The upper connecting rod is respectively rotatably connected to the chair upper rotating shaft and the upper frame rotating shaft. The horizontal part is respectively rotatably connected to the chair middle rotating shaft and the middle frame rotating shaft. The lower connecting rod is respectively rotatably connected to the chair lower rotating shaft and the lower frame rotating shaft. A slider and a sliding shaft are provided on the children's chair. The slider is slidably installed in the vertical chute, and the sliding shaft is slidably installed in the rod chute. It has the technical features that one side seat can realize rotary translation and lifting, the other side seat can perform up-and-down linear lifting, and the distance of the rotary translation and lifting end can be adjusted to adapt to the weight difference of players, etc.

Description

Technical Field

[0001] The invention relates to a seesaw, and more specifically to a dual-mode lifting seesaw, belonging to the field of sports facilities. Background Art

[0002] Seesaw is a common sports and entertainment facility. At present, the patent technology of seesaw focuses more on versatility, safety and adaptability. For example, the technologies of "a self-balancing device for seesaw and its control method" application number: 202011277138.8, "an adjustable seesaw" application number: 202010404207.0, and "a new multifunctional automatic adjustment fitness seesaw" application number: 201910950283.9 all use different technical means to solve the use problem when there is a large difference in weight on both sides of the seesaw. For example, the technologies of "a children's seesaw with protection function" application number 202011200486.5 and "an active protective seesaw to prevent head tilting" application number 202011153319.X all use different technical means to solve the safety problems existing in conventional seesaws. Some other technologies use a connecting rod mechanism to keep the seat horizontal. For example, the application number of “A Safety Seesaw” is CN201020634304.0, which discloses that “it is composed of a base, a main seesaw, a secondary seesaw and a seat. The base, the main seesaw and the secondary seesaw are connected by axes, and the connecting lines of the connecting axes form a parallelogram, which can keep the seat always level. A safety belt is fixed on the backboard of the seat. When young children use it, the adult can fasten the safety belt to ensure their safety.” The application number of the "invisible seesaw" is: CN200820065857.1, which discloses that "it includes a seat 1, a vertical pole 2, a base 3 and a linkage double rod 4. The linkage double rod 4 and the two vertical poles 1 form a parallelogram and are installed on the base 3 through a rotating shaft 5, just like a tray balance. The upper ends of the two vertical poles 2 are installed with a seesaw seat, and the lower ends are equipped with a shock-absorbing spring. The entire structure, except for the seat, is installed in a pit and covered with a cover. Only the seat that can be tilted is on the ground. The invisible seesaw increases the safety and invisible fun of the seesaw, and is especially suitable for kindergarten children." This technology uses a four-bar linkage to keep the seats on both sides in a horizontal state when in use, but its disadvantage is that it simply applies the four-bar linkage without further development, and is relatively monotonous in action and gameplay.

[0003] Therefore, for the current seesaw field, if new movement movements can be provided for the seesaw based on both practical technology and market feasibility, it will have positive social and market value. Summary of the invention

[0004] To solve the above-mentioned problems in the prior art, the present invention provides a dual-mode lifting seesaw with the technical features that one side seat can be rotated, translated and lifted, the other side seat can be lifted linearly up and down, and the distance of the rotating, translating and lifting end can be adjusted to adapt to the weight differences of players.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] A dual-mode lifting seesaw, comprising a bracket, an adult chair and a children's chair. The adult chair and the children's chair are linked by a connecting rod. From top to bottom, a frame upper rotating shaft, a frame middle rotating shaft and a frame lower rotating shaft are arranged on the left side of the bracket 1. A vertical sliding groove is also opened on the right side of the bracket. From top to bottom, a chair upper rotating shaft, a chair middle rotating shaft and a chair lower rotating shaft are arranged on the adult chair. The connecting rod includes an upper connecting rod, a middle connecting rod and a lower connecting rod. The middle connecting rod includes a horizontal part and an inclined part formed by inclining upward and extending from the right end of the horizontal part. A rod sliding groove is opened on the inclined part and the rod sliding groove is located outside the vertical sliding groove. The upper connecting rod is respectively rotatably connected to the chair upper rotating shaft and the frame upper rotating shaft. The horizontal part is respectively rotatably connected to the chair middle rotating shaft and the frame middle rotating shaft. The lower connecting rod is respectively rotatably connected to the chair lower rotating shaft and the frame lower rotating shaft. A slider and a sliding shaft are arranged on the children's chair. The slider is slidably installed in the vertical sliding groove, and the sliding shaft is slidably installed in the rod sliding groove.

[0007] Preferably, a plurality of upper shaft holes are arranged on the upper connecting rod, a plurality of middle shaft holes are arranged on the horizontal part, and a plurality of lower shaft holes are arranged on the lower connecting rod. The chair upper rotating shaft and the frame upper rotating shaft are respectively rotatably connected to an upper shaft hole on the upper connecting rod. The chair middle rotating shaft and the frame middle rotating shaft are respectively rotatably connected to a middle shaft hole on the middle connecting rod. The chair lower rotating shaft and the frame lower rotating shaft are respectively rotatably connected to a lower shaft hole on the lower connecting rod.

[0008] Preferably, the upper shaft holes at the left and right ends of the upper connecting rod are respectively rotatably connected to the chair upper rotating shaft and the frame upper rotating shaft. The middle shaft hole at the right end of the horizontal part is rotatably connected to the frame middle rotating shaft, and the chair middle rotating shaft is rotatably connected to the corresponding middle shaft hole on the horizontal part. The lower shaft holes at the left and right ends of the lower connecting rod are respectively rotatably connected to the chair lower rotating shaft and the frame lower rotating shaft. When the adult chair rotates upward, under the action of the upper connecting rod and the lower connecting rod, the adult chair moves in a horizontal state. The rod sliding groove on the inclined part rotates downward, driving the slider to move downward along the vertical sliding groove and the sliding shaft to move along the rod sliding groove, realizing the descent of the children's chair. When the adult chair rotates downward, under the action of the upper connecting rod and the lower connecting rod, the adult chair moves in a horizontal state. The rod sliding groove on the inclined part rotates upward, driving the slider to move upward along the vertical sliding groove and the sliding shaft to move along the rod sliding groove, and the children's chair realizes an ascent.

[0009] Preferably, the bracket includes a left bracket and a right bracket. The height of the left bracket is greater than that of the right bracket, and an intermediate bracket is connected between the upper ends of the left bracket and the right bracket. The upper bracket shaft, the middle bracket shaft, and the lower bracket shaft are equidistantly arranged on the left bracket. The vertical chute is formed on the right bracket. The upper bracket shaft, the middle bracket shaft, and the lower bracket shaft are respectively arranged at the same height as the upper chair shaft, the middle chair shaft, and the lower chair shaft.

[0010] Preferably, there are two upper connecting rods, two middle connecting rods, and two lower connecting rods. The two upper connecting rods, the two middle connecting rods, and the two lower connecting rods are respectively located on both sides of the bracket and are symmetrically arranged. The children's chair is connected with a frame rod. There are two frame rods which are symmetrically arranged on both sides of the bracket. The slider is located between the frame rods. Two sliding shafts are rotatably arranged on the slider. The sliding shafts respectively pass through the frame rods and are respectively slidably and rotatably arranged in a rod chute.

[0011] Preferably, the children's chair includes a seat panel and a protection frame. The seat panel is connected to the lower end of the frame rod, and the protection frame is connected to the upper end of the frame rod. A backrest and armrests are connected to the protection frame. The adult chair includes a seat and a connecting member connected to the seat. The upper chair shaft, the middle chair shaft, and the lower chair shaft are located on the connecting member. Armrests are provided on the connecting member.

[0012] Preferably, the length of the horizontal part is greater than the length of the upper connecting rod. The upper connecting rod and the lower connecting rod have the same length.

[0013] Preferably, the frame rod and the protection frame are rotatably connected.

[0014] Preferably, the bottom of the bracket is connected with a base. A plurality of mounting holes are formed in the base for passing through fixing bolts to be connected to a mounting surface.

[0015] Preferably, there are two upper connecting rods, two middle connecting rods, and two lower connecting rods. The two upper connecting rods, the two middle connecting rods, and the two lower connecting rods are respectively located on both sides of the bracket and are symmetrically arranged. The children's chair is connected with a frame rod. There are two frame rods which are symmetrically arranged on both sides of the bracket. The slider is located between the frame rods. Two sliding shafts are connected to the slider. The sliding shafts respectively pass through the frame rods and are respectively slidably arranged in a rod chute.

[0016] Beneficial effects: Compared with the existing seesaw devices, the present invention realizes the rotational and translational movement on the adult chair side of the seesaw and the vertical movement on the children's chair side, and can adjust the movement height of the children's chair and adapt to different technical effects of the weight differences of players through different assembly methods; the vertical lifting of the children's chair avoids children being thrown out and falling, and multiple assembly methods enable the seesaw to meet the needs of various usage scenarios; the use of a connecting rod drive structure is safe, reliable, and has a high durability; the overall structure is simple, convenient for processing, easy to install and move on-site, simple for maintenance and repair, easy for mass production and market promotion, and has good market value and social value. Brief Description of the Drawings

[0017] Figure 1 is the structural decomposition schematic diagram of the present invention.

[0018] Figure 2 is the part detail schematic diagram of the present invention.

[0019] Figure 3 is the partial installation schematic diagram of the present invention.

[0020] Figure 4 is the structural schematic diagram of the usage state 1 of Mode 1 of the present invention.

[0021] Figure 5 is the scene schematic diagram of the usage state 1 of Mode 1 of the present invention.

[0022] Figure 6 is the structural schematic diagram of the usage state 2 of Mode 1 of the present invention.

[0023] Figure 7 is the cross-sectional view of the usage state 2 of Mode 1 of the present invention.

[0024] Figure 8 is the scene schematic diagram of the usage state 2 of Mode 1 of the present invention.

[0025] Figure 9 is the scene schematic diagram of the usage state 3 of Mode 1 of the present invention.

[0026] Figure 10 is the cross-sectional view of the usage state 3 of Mode 1 of the present invention.

[0027] Figure 11 is the scene schematic diagram of the usage state 1 of Mode 2 of the present invention.

[0028] Figure 12 is the cross-sectional view of the usage state 1 of Mode 2 of the present invention.

[0029] Figure 13 is the scene schematic diagram of the usage state 2 of Mode 2 of the present invention.

[0030] Figure 14It is a cross-sectional view of the usage state 2 of installation mode 2 of the present invention.

[0031] Figure 15 It is a schematic diagram of the usage state 3 of mode 2 of the present invention.

[0032] Figure 16 It is a cross-sectional view of the usage state 3 of mode 2 of the present invention.

[0033] Figure 17 It is a schematic diagram of the usage state 1 of mode 3 of the present invention.

[0034] Figure 18 It is a cross-sectional view of the usage state 1 of mode 3 of the present invention.

[0035] Figure 19 It is a schematic diagram of the usage state 2 of mode 3 of the present invention.

[0036] Figure 20 It is a structural schematic diagram of the usage state 2 of mode 3 of the present invention.

[0037] Figure 21 It is a schematic diagram of the usage state 3 of mode 3 of the present invention.

[0038] Figure 22 It is a structural schematic diagram of the usage state 3 of mode 3 of the present invention.

[0039] In the figure: 1. Bracket; 1.1 Upper bracket rotating shaft; 1.2 Middle bracket rotating shaft; 1.3 Lower bracket rotating shaft; 1.4 Vertical sliding groove; 2. Adult chair; 2.1 Upper chair rotating shaft; 2.2 Middle chair rotating shaft; 2.3 Lower chair rotating shaft; 3. Children's chair; 3.1 Slide block; 3.2 Slide shaft; 4. Upper connecting rod; 4.1 Upper shaft hole; 5. Middle connecting rod; 5.1 Middle shaft hole; 5.2 Rod sliding groove; 6. Lower connecting rod; 6.1 Lower shaft hole. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] In the description of the invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. However, the connections at various places do not affect the multi-position folding of this application. For those of ordinary skill in the art, the specific meanings of the above terms in this invention can be understood according to specific circumstances.

[0043] The creativity of this invention lies in the adoption of a set of link mechanisms, combined with sliding and rotating actions, which realizes that one side of the seesaw can perform rotational translation motion, and the other side can perform vertical lifting motion. By changing the connection conditions between the left and right rotating shafts and the shaft holes, the switching of different motion modes is achieved, which not only meets the needs of matching different weights for use, but also solves the problems that young children cannot control conventional seesaws and there are motion risks at the same time.

[0044] As Figures 1-22 Shown is a specific embodiment of a dual-mode lifting seesaw. This embodiment of a dual-mode lifting seesaw includes a bracket 1, an adult chair 2, and a children's chair 3. The adult chair 2 and the children's chair 3 are linked by connecting rods. From top to bottom, a frame upper rotating shaft 1.1, a frame middle rotating shaft 1.2, and a frame lower rotating shaft 1.3 are provided on the left side of the bracket 1. A vertical chute 1.4 is also opened on the right side of the bracket 1. From top to bottom, a chair upper rotating shaft 2.1, a chair middle rotating shaft 2.2, and a chair lower rotating shaft 2.3 are provided on the adult chair 2. The connecting rods include an upper connecting rod 4, a middle connecting rod 5, and a lower connecting rod 6. The middle connecting rod 5 includes a horizontal part and an inclined part formed by inclining upward and extending from the right end of the horizontal part. A rod chute 5.2 is opened on the inclined part and the rod chute 5.2 is located outside the vertical chute 1.4. The upper connecting rod 4 is respectively rotatably connected to the chair upper rotating shaft 2.1 and the frame upper rotating shaft 1.1. The horizontal part is respectively rotatably connected to the chair middle rotating shaft 2.2 and the frame middle rotating shaft 1.2. The lower connecting rod 6 is respectively rotatably connected to the chair lower rotating shaft 2.3 and the frame lower rotating shaft 1.3. A slider 3.1 and a sliding shaft 3.2 are provided on the children's chair 3. The slider 3.1 is slidably installed in the vertical chute 1.4, and the sliding shaft 3.2 is slidably installed in the rod chute 5.2.

[0045] In a preferred embodiment, a plurality of upper shaft holes 4.1 are provided on the upper connecting rod 4, a plurality of middle shaft holes 5.1 are provided on the horizontal portion, and a plurality of lower shaft holes 6.1 are provided on the lower connecting rod 6. The upper chair rotating shaft 2.1 and the upper frame rotating shaft 1.1 are respectively rotatably connected to an upper shaft hole 4.1 on the upper connecting rod 4, the middle chair rotating shaft 2.2 and the middle frame rotating shaft 1.2 are respectively rotatably connected to a middle shaft hole 5.1 on the middle connecting rod 5, and the lower chair rotating shaft 2.3 and the lower frame rotating shaft 1.3 are respectively rotatably connected to a lower shaft hole 6.1 on the lower connecting rod 6.

[0046] In this application, the connection positions of the upper shaft holes 4.1, the middle shaft holes 5.1, and the lower shaft holes 6.1 on the upper connecting rod 4, the middle connecting rod 5, and the lower connecting rod 6 can be adjusted respectively.

[0047] A specific adjustment mode (such as translating the middle connecting rod 5 to the right): When the middle frame rotating shaft 1.2 and the middle chair rotating shaft 2.2 on the bracket 1 and the adult chair 2 are selected to be connected to the middle shaft hole 5.1 on the left side of the middle connecting rod 5, the acting angle of the rod chute 5.2 on the sliding shaft 3.2 during the rotation of the middle connecting rod 5 can be changed. When the adult chair 2 moves downward, the rod chute 5.2 can lift the child chair 3 to a higher position.

[0048] In this application, the connection positions of the middle chair rotating shaft 2.2 and the middle frame rotating shaft 1.2 to the middle shaft holes 5.1 on the middle connecting rod 5, the connection positions of the upper chair rotating shaft 2.1 and the upper frame rotating shaft 1.1 to the upper shaft holes 4.1 on the upper connecting rod 4, and the connection positions of the lower chair rotating shaft 2.3 and the lower frame rotating shaft 1.3 to the upper and lower shaft holes 6.1 on the lower connecting rod 6 can also be adjusted. When compared with the previous mode, when the upper shaft hole 4.1 and the lower shaft hole 6.1 on the left side of the upper connecting rod 4 and the lower connecting rod 6 are respectively connected to the upper frame rotating shaft 1.1 and the lower frame rotating shaft 1.3, the distance between the adult chair 2 and the bracket 1 can be shortened. With the distance between the child chair 3 and the bracket 1 remaining unchanged, the function of adjusting the weight balance on both sides can be achieved. In addition to changing the shaft hole mating relationship between the upper connecting rod 4, the lower connecting rod 6 and the bracket 1, the shaft hole mating relationship between the upper connecting rod 4, the lower connecting rod 6 and the adult chair 2 can also be changed, or the connection relationships of the two connecting parts can be changed simultaneously for adjustment. When adjusting the connection hole position 5.1 of the middle connecting rod 5, since the middle connecting rod 5 itself has a special-shaped design (horizontal portion and inclined portion), the child chair 3 on the right side can achieve different lifting heights while the adult chair on the left side remains at the same height.

[0049] In a preferred embodiment, the upper shaft holes 4.1 at the left and right ends of the upper connecting rod 4 are respectively rotatably connected to the upper chair rotating shaft 2.1 and the upper frame rotating shaft 1.1, the middle shaft hole 5.1 at the right end of the horizontal portion is rotatably connected to the middle frame rotating shaft 1.2, and the middle chair rotating shaft 2.2 is rotatably connected to the corresponding middle shaft hole 5.1 on the horizontal portion. The lower shaft holes 6.1 at the left and right ends of the lower connecting rod 6 are respectively rotatably connected to the lower chair rotating shaft 2.3 and the lower frame rotating shaft 1.3;

[0050] Principle of movement: When the adult chair 2 rotates upward, under the action of the upper connecting rod 4 and the lower connecting rod 6, the adult chair 2 moves in a horizontal state. The rod chute 5.2 on the inclined part rotates downward, driving the slider 3.1 to move downward along the vertical chute 1.4 and the sliding shaft 3.2 to move along the rod chute 5.2, realizing the lowering of the child chair 3; when the adult chair 2 rotates downward, under the action of the upper connecting rod 4 and the lower connecting rod 6, the adult chair 2 moves in a horizontal state. The rod chute 5.2 on the inclined part rotates upward, driving the slider 3.1 to move upward along the vertical chute 1.4 and the sliding shaft 3.2 to move along the rod chute 5.2, and the child chair 3 rises.

[0051] In a preferred embodiment, the bracket 1 includes a left bracket and a right bracket. The height of the left bracket is greater than that of the right bracket, and an intermediate bracket is connected between the upper ends of the left bracket and the right bracket. The left bracket, the right bracket, and the intermediate bracket are integrally formed. The upper bracket rotating shaft 1.1, the middle bracket rotating shaft 1.2, and the lower bracket rotating shaft 1.3 are equidistantly arranged on the left bracket. The vertical chute 1.4 is provided on the right bracket. The upper bracket rotating shaft 1.1, the middle bracket rotating shaft 1.2, and the lower bracket rotating shaft 1.3 are respectively arranged at the same height as the chair upper rotating shaft 2.1, the chair middle rotating shaft 2.2, and the chair lower rotating shaft 2.3. The same height setting can be conveniently designed such that when the upper connecting rod 4, the middle connecting rod 5, and the lower connecting rod 6 are horizontal, the adult chair 2 and the child chair 3 are horizontally stable.

[0052] In a preferred embodiment, two upper connecting rods 4, two middle connecting rods 5, and two lower connecting rods 6 are provided. The two upper connecting rods 4, the two middle connecting rods 5, and the two lower connecting rods 6 are respectively located on both sides of the bracket 1 and are symmetrically arranged; the child chair 3 is connected with frame rods. Two frame rods are provided and are symmetrically arranged on both sides of the bracket 1. The slider 3.1 is located between the frame rods. Two sliding shafts 3.2 are rotatably provided on the slider 3.1. The sliding shafts 3.2 respectively pass through the frame rods and are respectively slidably and rotatably arranged in a rod chute 5.2. The number is designed as 2, making the structure more firm. The sliding shafts 3.2 respectively pass through the frame rods and are respectively slidably and rotatably arranged in a rod chute 5.2 can reduce friction and wear, and the structure change response is fast.

[0053] In a preferred embodiment, the child chair 3 includes a seat panel and a protection frame. The seat panel is connected to the lower end of the frame rod, and the protection frame is connected to the upper end of the frame rod. A backrest and armrests are connected to the protection frame; the adult chair 2 includes a seat and a connecting member connected to the seat. The chair upper rotating shaft 2.1, the chair middle rotating shaft 2.2, and the chair lower rotating shaft 2.3 are located on the connecting member, and armrests are provided on the connecting member. In a preferred embodiment, the frame rod and the protection frame are rotatably connected. The rotation connection method can be structures such as a rotating shaft and a gear.

[0054] In a preferred embodiment, the length of the transverse portion is greater than that of the upper connecting rod 4, and the lengths of the upper connecting rod 4 and the lower connecting rod 6 are the same, so that it is easy to adjust so that when the adult chair 2 is downward, the rod slide groove 5.2 can raise the child chair 3 to a higher position.

[0055] In a preferred embodiment, the bottom of the bracket 1 is connected to a base, and the base is provided with a plurality of mounting holes for connecting to a mounting surface by passing fixing bolts, which has a simple structure and strong practicality.

[0056] In a preferred embodiment, two of the upper connecting rods 4, the middle connecting rods 5 and the lower connecting rods 6 are provided, and the two upper connecting rods 4, the two middle connecting rods 5 and the two lower connecting rods 6 are respectively located on both sides of the bracket 1 and are symmetrically arranged; the child chair 3 is connected to a frame rod, and the frame rods are provided with two and are symmetrically arranged on both sides of the bracket 1, and the slider 3.1 is located between the frame rods, and the slider 3.1 is connected to two sliding shafts 3.2, and the sliding shafts 3.2 are respectively passed through the frame rods and can be slidably arranged in a rod sliding groove 5.2.

[0057] According to different connection methods, the seesaw has at least 3 combined installation modes. Figures 4-22 As shown, the use of the present invention is as follows:

[0058] Mode 1 (standard mode): Figures 4-10 In the state shown, the three rotating shafts (rotating shafts 1.1, 1.2 and 1.3) on the bracket 1 and the three rotating shafts (rotating shafts 2.1, 2.2 and 2.3) on the adult chair 2 are respectively connected to the upper shaft hole 4.1, the middle shaft hole 5.1 and the lower shaft hole 6.1 on the two outer sides of the upper connecting rod 4, the middle connecting rod 5 and the lower connecting rod 6. At the same time, the slider 3.1 is placed in the vertical slide groove 1.4, and the rod slide groove 5.2 on the middle rod 5 is placed on the slide shaft 3.2. When the above positions are locked and connected, when the adult end rotates the seat 2 up or down, the seat moves in a horizontal state under the action of the upper connecting rod 4 and the lower connecting rod 6. Under the transmission of the middle connecting rod 5 through the shaft hole 5.1, the rod slide groove 5.2 and the slide shaft 3.2 and the constraint of the vertical slide groove 1.4, the child chair 3 is lifted up and down.

[0059] Mode 1 has better motion controllability and safety. Users can use it without making any adjustments. It is suitable for most situations and scenarios.

[0060] Mode 2 (i.e., moving the middle connecting rod 5 to the right): adjust the connection position of the shaft hole 5.1 of the middle connecting rod 5, such as Figures 11-16In the state shown, when the bracket 1 and the chair center rotating shaft 2.2 on the adult chair 2 and the frame center rotating shaft 1.2 are connected to the shaft hole 5.1 on the left side of the middle connecting rod 5, the action angle of the rod slide 5.2 on the slide shaft 3.2 can be changed when the middle connecting rod 5 rotates. When the adult chair 2 is downward, the rod slide 5.2 can raise the child chair 3 to a higher position, such as Figure 9 and Figure 11 comparison.

[0061] Compared with Mode 1, Mode 2 provides a higher degree of freedom for the children's chair, which is more interesting and suitable for players who can accept certain challenges.

[0062] Mode 3: Adjust the connection positions of the shaft holes 4.1, 5.1, and 6.1 on the upper connecting rod 4, the middle connecting rod 5, and the lower connecting rod 6 respectively. Figures 17-22 In the state shown, when the connection holes 4.1 and 6.1 on the upper connecting rod 4 and the lower connecting rod 6 are connected to the upper rotating shaft 1.1 and the lower rotating shaft 1.3 respectively, the distance between the adult chair 2 and the bracket 1 can be shortened, and the weight balance of both sides can be adjusted when the distance between the child chair 3 and the bracket 1 remains unchanged. Figure 13 and Figure 19 In addition to changing the matching relationship between the upper and lower connecting rods 4 and 6 and the shaft holes of the bracket 1, the matching relationship between the upper connecting rod 4 and the lower connecting rod 6 and the shaft holes of the adult chair 2 can also be changed, or the connection relationship of the two connecting parts can be changed at the same time to adjust. When adjusting the connection hole 5.1 of the middle connecting rod 5, because the middle connecting rod 5 itself adopts a special-shaped design, the right child chair can achieve different lifting heights while the left adult chair remains at the same height.

[0063] Compared with Mode 1 and Mode 2, Mode 3 has a more complicated adjustment method, but it can match the needs of users with different weights and different requirements, and has more action characteristics, making it suitable for players with multiple usage needs.

[0064] Finally, it should be noted that the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the protection scope of the present invention.

Claims

1. A dual-mode lifting seesaw, characterized in that: It includes a bracket (1), an adult chair (2), and a child chair (3). The adult chair (2) and the child chair (3) are linked by connecting rods. From top to bottom, a shaft on the bracket (1) (1.1), a middle shaft on the bracket (1) (1.2), and a lower shaft on the bracket (1) (1.3) are provided on the left side of the bracket (1). A vertical chute (1.4) is also provided on the right side of the bracket (1). From top to bottom, a shaft on the adult chair (2) (2.1), a middle shaft on the adult chair (2) (2.2), and a lower shaft on the adult chair (2) (2.3) are provided on the adult chair (2). The connecting rods include an upper connecting rod (4), a middle connecting rod (5), and a lower connecting rod (6). The middle connecting rod (5) includes a horizontal part and an inclined part formed by tilting upward and extending from the right end of the horizontal part. A rod chute (5.2) is provided on the inclined part and the rod chute (5.2) is located outside the vertical chute (1.4). The upper connecting rod (4) is rotatably connected to the shaft on the chair (2.1) and the shaft on the bracket (1.1) respectively. The horizontal part is rotatably connected to the middle shaft on the chair (2.2) and the middle shaft on the bracket (1.2) respectively. The lower connecting rod (6) is rotatably connected to the lower shaft on the chair (2.3) and the lower shaft on the bracket (1.3) respectively. A slider (3.1) and a sliding shaft (3.2) are provided on the child chair (3). The slider (3.1) is slidably installed in the vertical chute (1.4). The sliding shaft (3.2) is slidably installed in the rod chute (5.2). A plurality of upper shaft holes (4.1) are provided on the upper connecting rod (4). A plurality of middle shaft holes (5.1) are provided on the horizontal part. A plurality of lower shaft holes (6.1) are provided on the lower connecting rod (6). The shaft on the chair (2.1) and the shaft on the bracket (1.1) are respectively rotatably connected to an upper shaft hole (4.1) on the upper connecting rod (4). The middle shaft on the chair (2.2) and the middle shaft on the bracket (1.2) are respectively rotatably connected to a middle shaft hole (5.1) on the middle connecting rod (5). The lower shaft on the chair (2.3) and the lower shaft on the bracket (1.3) are respectively rotatably connected to a lower shaft hole (6.1) on the lower connecting rod (6). The upper shaft holes (4.1) at the left and right ends of the upper connecting rod (4) are respectively rotatably connected to the chair upper rotating shaft (2.1) and the frame upper rotating shaft (1.1). The middle shaft hole (5.1) at the right end of the transverse part is rotatably connected to the frame middle rotating shaft (1.2), and the chair middle rotating shaft (2.2) is rotatably connected to the corresponding middle shaft hole (5.1) on the transverse part. The lower shaft holes (6.1) at the left and right ends of the lower connecting rod (6) are respectively rotatably connected to the chair lower rotating shaft (2.3) and the frame lower rotating shaft (1.3). When the adult chair (2) rotates upwards, under the action of the upper connecting rod (4) and the lower connecting rod (6), the adult chair (2) moves in a horizontal state. The rod chute (5.2) on the inclined part rotates downwards, driving the slider (3.1) to move downwards along the vertical chute (1.4) and the sliding shaft (3.2) to move along the rod chute (5.2), realizing the lowering of the child chair (3). When the adult chair (2) rotates downwards, under the action of the upper connecting rod (4) and the lower connecting rod (6), the adult chair (2) moves in a horizontal state. The rod chute (5.2) on the inclined part rotates upwards, driving the slider (3.1) to move upwards along the vertical chute (1.4) and the sliding shaft (3.2) to move along the rod chute (5.2), and the child chair (3) rises. The bracket (1) includes a left bracket and a right bracket. The height of the left bracket is greater than that of the right bracket, and an intermediate bracket is connected between the upper ends of the left bracket and the right bracket. The frame upper rotating shaft (1.1), the frame middle rotating shaft (1.2), and the frame lower rotating shaft (1.3) are arranged at equal intervals on the left bracket. The vertical chute (1.4) is opened on the right bracket. The frame upper rotating shaft (1.1), the frame middle rotating shaft (1.2), and the frame lower rotating shaft (1.3) are respectively arranged at the same height as the chair upper rotating shaft (2.1), the chair middle rotating shaft (2.2), and the chair lower rotating shaft (2.3).

2. The dual-mode lifting seesaw according to claim 1, wherein: There are two upper connecting rods (4), two middle connecting rods (5), and two lower connecting rods (6). The two upper connecting rods (4), the two middle connecting rods (5), and the two lower connecting rods (6) are respectively located on both sides of the bracket (1) and are symmetrically arranged. The child chair (3) is connected with frame rods. There are two frame rods and they are symmetrically arranged on both sides of the bracket (1). The slider (3.1) is located between the frame rods. Two sliding shafts (3.2) are rotatably arranged on the slider (3.1). The sliding shafts (3.2) respectively pass through the frame rods and are respectively slidably and rotatably arranged in a rod chute (5.2).

3. The dual-mode lifting seesaw according to claim 1, wherein: The child chair (3) includes a seat panel and a protection frame. The seat panel is connected to the lower end of the frame rod, and the protection frame is connected to the upper end of the frame rod. A backrest and armrests are connected to the protection frame. The adult chair (2) includes a seat and a connecting piece connected to the seat. The chair upper rotating shaft (2.1), the chair middle rotating shaft (2.2), and the chair lower rotating shaft (2.3) are located on the connecting piece. Armrests are provided on the connecting piece.

4. A dual-mode lifting seesaw according to claim 1, characterized in that: The length of the transverse part is greater than the length of the upper connecting rod (4). The upper connecting rod (4) and the lower connecting rod (6) have the same length.

5. The dual-mode lifting seesaw according to claim 2, wherein: The frame rod and the protection frame are rotatably connected.

6. The dual-mode lifting seesaw according to claim 1, wherein: The bottom of the bracket (1) is connected with a base, and a plurality of mounting holes are formed in the base for passing through and fixing bolts to be connected to the mounting surface.

7. A dual-mode lifting seesaw according to claim 1, characterized in that: There are two upper connecting rods (4), two middle connecting rods (5), and two lower connecting rods (6). The two upper connecting rods (4), the two middle connecting rods (5), and the two lower connecting rods (6) are respectively located on both sides of the bracket (1) and are symmetrically arranged; the children's chair (3) is connected with a frame rod. There are two frame rods and they are symmetrically arranged on both sides of the bracket (1). The slider (3.1) is located between the frame rods. Two sliding shafts (3.2) are connected to the slider (3.1). The sliding shafts (3.2) are respectively passed through the frame rods and are respectively slidably arranged in a rod chute (5.2).

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