Quadrilateral seesaw with four-connecting-rod structure

Abstract

The utility model relates to the technical field of playing equipment, in particular to a quadrilateral seesaw with a four-connecting-rod structure, which comprises a base, a support arranged at the top of the base, a four-connecting-rod assembly arranged at the top of the support, lifting rods arranged at two ends of the four-connecting-rod assembly, and seat cushions arranged at the tops of the outer ends of the lifting rods. The four-connecting-rod assembly comprises two transverse rods and two vertical rods, and the middles of the two transverse rods are rotationally connected with the support through bearings. According to the quadrilateral seesaw of the four-connecting-rod structure, the four-connecting-rod assembly is adopted, so that the seesaw achieves more stable fluctuating motion. The four-connecting-rod assembly is formed by connecting the two transverse rods and the two vertical rods through the bearings and the pin shafts, by means of the structure, force can be dispersed more evenly when the seesaw fluctuates up and down, impact force caused by sudden rising and falling is reduced, and therefore the risk that children fall down in the playing process and other accidents happen is greatly reduced. The seesaw disclosed by the utility model is also obviously improved in the aspect of structural stability.

Description

Technical Field

[0001] The utility model relates to the technical field of amusement equipment, in particular to a quadrilateral seesaw with a four-link structure. Background Art

[0002] As a classic children's amusement ride, the seesaw has long been a favorite. However, traditional seesaw designs often utilize narrow wooden or iron pieces, supported and rotated by simple bearings. While this design is structurally simple, it presents numerous practical challenges.

[0003] First, traditional seesaws have a large range of rise and fall, which can easily cause children to lose their balance or even fall during play due to the sudden rise and fall. This unstable operation experience not only affects children's fun, but also poses a potential threat to their safety.

[0004] Secondly, the design of traditional seesaws also has shortcomings in terms of structural stability. Due to its simple structure, the seesaw is prone to deformation or damage when subjected to heavy loads or used for a long time, thus shortening the service life of the equipment. Utility Model Content

[0005] The purpose of the present invention is to provide a quadrilateral seesaw with a four-link structure to solve the problem in the above-mentioned background art that the traditional seesaw has a large rise and fall amplitude, and children are prone to lose balance due to sudden rises and falls during play, and even fall down and other accidents.

[0006] To achieve the above-mentioned purpose, the utility model provides a quadrilateral seesaw with a four-link structure, comprising a base, a bracket installed on the top of the base, a four-link assembly installed on the top of the bracket, lifting rods installed at both ends of the four-link assembly, a seat cushion installed on the top of the outer end of the lifting rod, and the four-link assembly including two cross bars and two vertical bars, the middle parts of the two cross bars are rotatably connected to the bracket through bearings, and the two ends of the cross bar are rotatably connected to the end heads of the vertical bars through pins.

[0007] Preferably, the lifting rod is arranged horizontally, and one end is welded to the middle outer wall of the vertical rod.

[0008] Preferably, a reinforcing rib is installed on the top of the base near the outer side of the bracket.

[0009] Preferably, a plurality of mounting holes are provided on the surface of the base, and the base is fixed to the ground by bolts.

[0010] Preferably, a handrail is installed above the middle portion of the lifting rod.

[0011] Preferably, a foot support is installed below the middle portion of the lifting rod.

[0012] Preferably, the two vertical rods are of equal length, the two horizontal rods are of equal length, and the length of the horizontal rod is greater than the length of the vertical rod.

[0013] Preferably, the seat cushion is made of silicone material.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The four-link structure of the quadrilateral seesaw of the present invention utilizes a four-link assembly to achieve a smoother ups and downs motion. The four-link assembly consists of two horizontal bars and two vertical bars connected by bearings and pins. This structure allows the seesaw to more evenly distribute force when it rises and falls, reducing the impact of sudden rises and falls, thereby significantly reducing the risk of accidents such as falls during play.

[0016] Furthermore, the seesaw's structural stability is significantly improved. The base is bolted to the ground, ensuring overall structural stability. Furthermore, reinforcing ribs are installed on the top of the base, further enhancing its strength and durability. The design of the four-link assembly and lifting rod also prevents the seesaw from deforming or damaging under heavy loads or during prolonged use, extending its service life.

[0017] In summary, the quadrilateral seesaw with a four-link structure of the present invention not only provides a smoother and safer play experience, but also has excellent structural stability and durability, and is an important innovation in the field of children's amusement equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 Schematic diagram of the structure of the four-link assembly in the present invention;

[0020] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0021] The meaning of each number in the figure is:

[0022] 1. Base; 11. Reinforcement ribs; 12. Mounting holes; 2. Bracket; 21. Bearing; 3. Four-link assembly; 31. Crossbar; 32. Vertical bar; 33. Pin; 4. Lifting rod; 41. Seat cushion; 5. Armrest; 6. Footrest. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a quadrilateral seesaw with a four-link structure. Figure 1-Figure 3 As shown, it includes a base 1, a bracket 2 is mounted on the top of the base 1, a four-link assembly 3 is mounted on the top of the bracket 2, a lifting rod 4 is mounted on both ends of the four-link assembly 3, and a seat cushion 41 is mounted on the top of the outer end of the lifting rod 4. The four-link assembly 3 includes two cross bars 31 and two vertical bars 32. The middle parts of the two cross bars 31 are rotatably connected to the bracket 2 through bearings 21, and the two ends of the cross bars 31 are rotatably connected to the ends of the vertical bars 32 through pins 33. The seesaw uses the four-link assembly 3 as the core transmission structure. This design enables the seesaw to maintain a high degree of stability and smoothness during movement. The four-link assembly 3 is flexibly connected by two cross bars 31 and two vertical bars 32 through bearings 21 and pins 33. This connection method not only ensures the smoothness of the seesaw during ups and downs, but also effectively disperses the force during movement, reducing the impact caused by sudden rises and falls, thereby improving the safety of children during play.

[0025] Secondly, the design of the lifting rod 4 further enhances the stability and maneuverability of the seesaw. The lifting rod 4 is horizontally positioned and welded to the central outer wall of the vertical rod 32. This design allows the seesaw to more evenly distribute loads, preventing structural deformation or damage caused by excessive localized forces. Furthermore, a seat cushion 41 is mounted on the top of the outer end of the lifting rod 4, providing a comfortable and stable ride for children.

[0026] In this embodiment, the lifting rod 4 is horizontally positioned, with one end welded to the middle outer wall of the vertical rod 32. This design ensures a secure and reliable connection between the lifting rod 4 and the vertical rod 32, enhancing the overall structural strength of the seesaw. The horizontal positioning of the lifting rod 4 makes the seesaw more stable during raising and lowering, providing a safer and more comfortable ride for children. Furthermore, the welded connection improves the durability of the seesaw, reducing the risk of loosening or damage due to long-term use.

[0027] Specifically, a reinforcing rib 11 is installed on the top of the base 1, near the outside of the bracket 2. The addition of the rib 11 significantly enhances the structural strength and rigidity of the base 1, improving the overall load-bearing capacity of the seesaw. This design makes the seesaw more stable when subjected to heavy loads or external impacts, making it less likely to deform or damage, thereby extending the device's service life.

[0028] Furthermore, the base 1 is provided with a plurality of mounting holes 12 on its surface, and the base 1 is fixed to the ground via bolts. This mounting method ensures that the seesaw is firmly fixed to the ground, avoiding safety hazards caused by shaking or movement of the device during use. The design of the mounting holes 12 also facilitates the installation and removal of the seesaw, facilitating maintenance and replacement of the device.

[0029] Furthermore, a handrail 5 is mounted above the middle portion of the lifting rod 4. This provides children with an additional support point, making it easier for them to grip and maintain balance while playing. This not only increases children's sense of security while riding the seesaw, but also improves their ability to control the device, making the game more enjoyable and stable.

[0030] Furthermore, a foot support 6 is mounted below the middle portion of the lifting rod 4. This provides a place for children to rest their feet, allowing them to sit more comfortably on the seat while playing. It also stabilizes the seesaw, reducing instability caused by children's wobbling feet and improving the overall safety of the device.

[0031] Furthermore, the two vertical rods 32 are of equal length, the two horizontal rods 31 are of equal length, and the length of the horizontal rod 31 is greater than the length of the vertical rod 32. The design of the horizontal rod 31 being longer than the vertical rod 32 also optimizes the motion trajectory of the seesaw, making the height change greater, making it more in line with the game needs and psychological characteristics of children.

[0032] Furthermore, the seat cushion 41 is made of silicone. Silicone offers excellent softness and elasticity, providing a comfortable and stable ride for children. It also boasts excellent wear resistance and anti-aging properties, ensuring the cushion remains intact for extended periods, extending the lifespan of the device. Furthermore, silicone is easy to clean and maintain, facilitating routine maintenance.

[0033] When the quadrilateral seesaw with the four-link structure of the present invention is in use, first when the seesaw is not in use, the four-link assembly 3 is in a balanced state, the lifting rods 4 on both sides are at the same height, and the seat cushion 41 is placed horizontally.

[0034] When a child sits on one side of the seat cushion 41, their weight is transferred to the four-bar assembly 3 through the lifting rod 4, breaking the equilibrium state. According to the principle of leverage, the lifting rod 4 on that side will start to rise, while the other side will fall, forming the initial movement of the seesaw.

[0035] As the child moves or exerts force on the seat cushion 41, the seesaw will move up and down around the bearing 21 on the bracket 2. The four-link assembly 3, through its unique motion characteristics, ensures that the seesaw remains stable during the ups and downs, reducing the impact caused by sudden rises and falls.

[0036] Design elements such as the reinforcing ribs 11, mounting holes 12, armrests 5, and foot supports 6 provide additional safety for the seesaw. They enhance the structural strength and stability of the device and prevent safety accidents caused by external impact or improper operation by children.

[0037] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A quadrilateral seesaw with a four-link structure, comprising a base (1), characterized in that: A bracket (2) is installed on the top of the base (1), a four-link assembly (3) is installed on the top of the bracket (2), lifting rods (4) are installed at both ends of the four-link assembly (3), a seat cushion (41) is installed on the top of the outer end of the lifting rod (4), and the four-link assembly (3) includes two cross bars (31) and two vertical bars (32), the middle parts of the two cross bars (31) are rotatably connected to the bracket (2) through bearings (21), and the two ends of the cross bar (31) are rotatably connected to the end of the vertical bar (32) through pins (33).

2. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: The lifting rod (4) is arranged horizontally, and one end is welded to the middle outer wall of the vertical rod (32).

3. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: A reinforcing rib (11) is installed on the top of the base (1) near the outer side of the bracket (2).

4. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: A plurality of mounting holes (12) are provided on the surface of the base (1), and the base (1) is fixed to the ground by bolts.

5. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: A handrail (5) is installed above the middle of the lifting rod (4).

6. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: A foot support (6) is installed below the middle of the lifting rod (4).

7. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: The two vertical rods (32) are of equal length, the two horizontal rods (31) are of equal length, and the length of the horizontal rod (31) is greater than the length of the vertical rod (32).

8. The quadrilateral seesaw with a four-bar linkage structure according to claim 1, characterized in that: The seat cushion (41) is made of silica gel material.

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