Picnic table and chair assembly provided with sunshade mechanism

Abstract

The present invention relates to the technical field of outdoor equipment, and in particular to a picnic table and chair assembly provided with a sunshade mechanism, comprising a table top, a seat, and a support frame, wherein the table top and the seat are arranged on the support frame, and when the support frame is unfolded, the table top and the seat are respectively parallel to the horizontal plane, and the height of the table top is higher than that of the seat, and the assembly comprises: a receiving cavity, arranged at one end in the width direction of the table top, extending from the side wall of the table top to the interior of the table top; a sunshade mechanism, arranged in the receiving cavity; an interlocking slot, arranged at the top of the table top, a shielding assembly being provided at the starting end of the interlocking slot, and the shielding assembly being used to open or close the entrance of the interlocking slot; and a telescopic mechanism, arranged at the end of the receiving cavity, wherein when the sunshade mechanism is placed in or taken out of the receiving cavity, the contact plate is pushed up by the parasol body or the adjustment spring, thereby causing the transmission assembly to operate and drive the shielding assembly to open or close. The present invention enables the picnic table and chair assembly to have a built-in sunshade mechanism, which is convenient and quick to assemble, and effectively improves the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of outdoor equipment, in particular to a picnic table and chair assembly provided with a sunshade mechanism. Background Art

[0002] With the improvement of living standards and the advocacy of healthy living, people have become keen on outdoor activities, such as outings or picnics in parks or riverbanks.

[0003] The traditional way of picnic is to lay out a tablecloth, place food on it, and carry out other entertainment activities on the tablecloth. However, this method makes people sit in an uncomfortable position and has hygiene problems.

[0004] At present, outdoor camping equipment has gradually entered people's field of vision, and portable tables and chairs are popular. Now portable tables and chairs mainly adopt the combination of folding stools and assembled tables. The assembled tables have separate tabletops and legs. After unfolding the legs, the tabletop is laid out, which can meet basic picnic needs.

[0005] However, during a picnic, there may be precipitation or strong sunlight outdoors. Without a tent or canopy, the picnic is easily affected by the sun or precipitation, making it impossible to proceed. Furthermore, carrying a parasol or tent requires a lot of space, which not only increases costs but also requires a lot of equipment to assemble and disassemble, which can easily lead to a poor picnic experience. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a picnic table and chair assembly provided with a sunshade mechanism, so as to solve the problems that the existing picnic tables and chairs cannot avoid the influence of precipitation or sunlight, and are difficult to assemble or require a lot of equipment.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a picnic table and chair assembly provided with a sunshade mechanism, comprising a table top, a seat and a support frame, wherein the table top and the seat are arranged on the support frame, and when the support frame is unfolded, the table top and the seat are respectively parallel to the horizontal plane, and the height of the table top is higher than the height of the seat, comprising:

[0008] The accommodating cavity is arranged at one end of the table board in the width direction and extends from the side wall of the table board to the interior of the table board;

[0009] The sunshade mechanism is arranged in the accommodating cavity and includes a parasol body and a connecting assembly. The parasol body and the connecting assembly are detachably connected, and the connecting assembly is connected to the open end of the accommodating cavity through a threaded connection;

[0010] The engaging chute is provided at the top of the table board and extends from the side wall of the table board to the inside of the table board. The starting end of the engaging chute is provided with a shielding component, which is used to open or close the entrance of the engaging chute; the connecting component can engage with the engaging chute and slide back and forth along the engaging chute, so that the parasol body is perpendicular to the table board;

[0011] The telescopic mechanism is arranged at the end of the accommodating cavity and includes a contact plate, an adjustment spring and a transmission assembly. The adjustment spring is arranged between the end of the accommodating cavity and the contact plate. The two ends of the transmission assembly are respectively connected to the contact plate and the shielding assembly. When the sunshade mechanism is placed in or taken out of the accommodating cavity, the contact plate is pushed up by the parasol body or the adjustment spring, thereby causing the transmission assembly to operate and drive the shielding assembly to open or close.

[0012] In one embodiment, the transmission assembly includes a ball screw, a first bearing, a first gear, a second gear and a transmission rod. The ball screw includes a nut pair and a screw pair. The nut pair is rotatably arranged at the end of the accommodating cavity through the first bearing. The nut pair is provided with a first gear. One end of the transmission rod is provided with a second gear. The other end of the transmission rod is transmission-connected to the shielding assembly, and the first gear is meshed with the second gear. One end of the screw pair is connected to the contact plate, and a screw groove is provided at the end of the accommodating cavity. The other end of the screw pair passes through the nut pair and enters the screw groove. Under the action of the contact plate, the screw pair moves back and forth along the screw groove and drives the nut pair to rotate, thereby causing the transmission rod to move and drive the shielding assembly.

[0013] In one embodiment, the shielding assembly includes a shielding plate, a translation rack and a third gear. The third gear is arranged at one end of the transmission rod close to the shielding plate. A translation rack is provided at the bottom of the shielding plate, and the third gear is engaged with the translation rack.

[0014] In one embodiment, a shielding groove is provided at the open end of the engaging slide groove corresponding to the shielding assembly, and the shielding plate is moved back and forth along the shielding groove under the action of the third gear.

[0015] In one embodiment, the connecting assembly includes a cover plate, a rotating screw plate and a connecting column. The connecting column is arranged on the cover plate, the rotating screw plate is sleeved on the connecting column, and the connecting column is detachably connected to the parasol body; the outer surface of the cover plate is connected to the inner wall of the open end of the accommodating cavity by a thread.

[0016] In one embodiment, a rotating handle is provided on the side of the cover away from the connecting column, and the engaging groove is cross-shaped as a whole; when in use, the cover, the rotating handle and part of the connecting column are engaged in the engaging groove, and the lower surface of the rotating screw plate abuts against the table top.

[0017] In one embodiment, a rotating baffle is provided above the engaging groove, and the rotating baffle is hinged on the table board; when the rotating baffle abuts against the table board, the upper surface of the rotating baffle is flush with the upper surface of the table board, and in the direction perpendicular to the table board, the projection area of ​​the engaging groove is within the projection area of ​​the rotating baffle.

[0018] In one embodiment, a lifting assembly is further included. The lifting assembly is vertically arranged inside the table top, and the lifting assembly is in transmission connection with the transmission assembly.

[0019] In one embodiment, the lifting assembly includes a lifting column and a lifting rack, a lifting gear set is provided on the transmission rod, and a lifting rack is provided on the side of the lifting column close to the transmission rod, and the lifting rack is engaged with the lifting gear set; the lifting column is arranged on the side of the hinge point of the rotating baffle and the table board close to the engaging groove, and the lifting column abuts against the rotating baffle; when the transmission rod drives the shielding assembly to close, it simultaneously drives the lifting column to descend, and when the transmission rod drives the shielding assembly to open, it simultaneously drives the lifting column to rise.

[0020] In one embodiment, a through hole is provided at the bottom of the accommodating cavity, and the through hole enables the accommodating cavity to communicate with the outside of the table top.

[0021] The beneficial effects of the present invention are as follows: Traditional picnic tables and chairs mainly adopt a steel frame hinged structure for portability considerations. The bracket structure is unfolded by rotation, and then the table top is laid. Although this solution takes portability into consideration, the overall function is too simple and can only meet basic picnic needs. In the face of sunlight and rain, the table surface and people are not shielded, resulting in a poor user experience. If the sunshade mechanism is pre-installed directly on the table surface, it will not only cause obstructions during transportation, but also when no sunshade is required, the sunshade mechanism will hinder the placement of objects on the table, resulting in a reduction in the placement area, and will cause obstructions when people take items, giving the user a similarly poor experience.

[0022] The present invention uses a accommodating cavity to embed the sunshade mechanism. When sunshade or rain protection is needed, the user can take out the sunshade mechanism and then put the connecting component into the interlocking slide groove, so that the sunshade mechanism as a whole can slide along the interlocking slide groove, thereby adjusting the position of the sunshade mechanism on the surface of the table board.

[0023] If only the sunshade mechanism is built-in, it needs to be manually pulled out of the storage cavity when it is used. In order to take into account the portability of the picnic table and chairs and improve the utilization rate of the overall space, the size of the storage cavity will not be too large. When the sunshade mechanism is placed in the storage cavity, the connecting component is embedded in the inner wall of the storage cavity and connected by threads. If the entire process is manually rotated and pulled out, the user experience is poor. Therefore, the present invention sets a telescopic mechanism in the storage cavity. Through the contact plate and the adjustment spring, the force of the sunshade mechanism is stored. After the connecting component is loosened, the sunshade mechanism can be pushed out of the storage cavity as a whole, making it convenient for users to use.

[0024] Furthermore, the engaging chute has an opening on the side wall of the table top. Since picnic tables and chairs need to be carried outdoors for use, they need to be frequently moved. During this process, debris such as leaves and hair may enter the engaging chute through the opening, hindering the sliding of the connecting assembly and limiting the position of the sunshade mechanism. Therefore, a shielding assembly is provided at the starting end of the engaging chute. By opening or closing the shielding assembly, the opening of the engaging chute is sealed to prevent debris from entering.

[0025] To eliminate the need for manual opening and closing of the sunshade assembly, the present invention incorporates a transmission assembly within the telescopic mechanism. This transmits the mechanism's motion to the sunshade assembly when the sunshade assembly is inserted or removed, allowing the sunshade assembly to close with insertion and open with removal. This further simplifies user operation and improves ease of use. Furthermore, the automatic opening and closing of the sunshade assembly prevents the user from forgetting to close the sunshade assembly, potentially leading to debris entering the engaging slots, further enhancing the user experience.

[0026] Other features and beneficial effects of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other beneficial effects of the present invention can be achieved and obtained by the structures and / or components specified in the description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention when it is unfolded;

[0028] Figure 2 This is a three-dimensional schematic diagram of multiple groups used in common according to an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of point E in the middle;

[0030] Figure 4 for Figure 2 A top view of

[0031] Figure 5 for Figure 2 The main view;

[0032] Figure 6 for Figure 5 Cross-section at AA;

[0033] Figure 7 An exploded view of a table top and the structure above it in one embodiment of the present invention;

[0034] Figure 8 for Figure 7 Exploded view of the middle sunshade mechanism when compressing the transmission assembly;

[0035] Figure 9 for Figure 7 Exploded view of the middle sunshade mechanism when it is embedded in the engaging groove;

[0036] Figure 10 A side view of a table top and the structure above it in one embodiment of the present invention;

[0037] Figure 11 for Figure 10 Cross-section at the middle BB;

[0038] Figure 12 A three-dimensional schematic diagram of a table top in one embodiment of the present invention;

[0039] Figure 13 for Figure 12 A top view of

[0040] Figure 14 for Figure 13 Cross-section at CC;

[0041] Figure 15 for Figure 13 Cross-section at middle DD;

[0042] Figure 16 Schematic diagram of the structure of the electromagnetic tensioning mechanism in one embodiment of the present invention.

[0043] Description of labels:

[0044] 1. Table top; 11. Accommodating cavity; 111. Screw groove; 112. Through hole; 12. Engaging slide; 121. Shielding groove; 13. Shielding assembly; 131. Shielding plate; 132. Translation rack; 14. Rotating baffle; 15. Lifting assembly; 151. Lifting column; 152. Lifting rack; 153. Lifting gear set; 2. Seat; 3. Support frame; 31. First support; 32. Second support; 33. First connecting rod; 34. Second connecting rod; 35. Lifting rod; 36. Rotating disk; 4. Sunshade mechanism; 41. Sunshade body; 42. Connecting rod Connecting assembly; 421, cover plate; 422, rotating screw plate; 423, connecting column; 424, rotating handle; 425, electromagnetic tensioning mechanism; 4251, telescopic guide column; 4252, rotating guide groove; 4253, first magnetic pole; 4254, second magnetic pole; 5, telescopic mechanism; 51, contact plate; 52, adjustment spring; 53, transmission assembly; 531, ball screw; 5311, nut pair; 5312, screw pair; 532, first bearing; 533, first gear; 534, second gear; 535, transmission rod; 536, third gear. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments; the technical features designed in different implementation modes of the present invention described below can be combined with each other as long as they do not conflict with each other; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0047] Please refer to Figures 1 to 15 A picnic table and chair assembly with a sunshade mechanism comprises a table top 1, a seat 2, and a support frame 3. The table top 1 and the seat 2 are arranged on the support frame 3. When the support frame 3 is unfolded, the table top 1 and the seat 2 are parallel to the horizontal plane, and the height of the table top 1 is higher than that of the seat 2. The assembly comprises:

[0048] The accommodating cavity 11 is provided at one end of the table top 1 in the width direction and extends from the side wall of the table top 1 toward the interior of the table top 1;

[0049] The sunshade mechanism 4 is disposed in the accommodating cavity 11 and includes a parasol body 41 and a connecting assembly 42. The parasol body 41 and the connecting assembly 42 are detachably connected, and the connecting assembly 42 is connected to the open end of the accommodating cavity 11 via threads.

[0050] The engaging groove 12 is provided at the top of the table top 1 and extends from the side wall of the table top 1 to the interior of the table top 1. A shielding assembly 13 is provided at the starting end of the engaging groove 12. The shielding assembly 13 is used to open or close the entrance of the engaging groove 12. The connecting assembly 42 can engage with the engaging groove 12 and slide back and forth along the engaging groove 12, so that the parasol body 41 is perpendicular to the table top 1.

[0051] The telescopic mechanism 5 is provided at the end of the accommodating cavity 11 and includes a contact plate 51, an adjustment spring 52, and a transmission assembly 53. The adjustment spring 52 is provided between the end of the accommodating cavity 11 and the contact plate 51. The two ends of the transmission assembly 53 are respectively connected to the contact plate 51 and the shielding assembly 13. The contact plate 51 is pushed up by the parasol body 41 or the adjustment spring 52, thereby causing the transmission assembly 53 to operate and drive the shielding assembly 13 to open or close. Specifically, the shielding assembly 13 can be in the form of a hinged rotating shield, or a shielding plate 131 that can be moved along the side wall of the table top 1. The transmission assembly 53 can be in the form of a pull rod, a screw, a pull rope, etc. Those skilled in the art can select a suitable shielding assembly 13 and a transmission assembly 53 according to their needs so that the shielding assembly 13 can be opened and closed as the sunshade mechanism 4 is taken in and put away. No specific limitation is made.

[0052] Specifically, the parasol body 41 can be in the form of a straight umbrella or a tri-fold umbrella, or can further be an automatic umbrella body. Those skilled in the art can choose according to their needs without specific limitation.

[0053] Since the transmission assembly 53 is arranged at the end of the accommodating cavity 11, the overall length is relatively long. If a transmission mechanism such as a pull rod is used, the transmission space required is relatively large, which is not conducive to the overall integration of the device. Therefore, the transmission assembly 53 includes a ball screw 531, a first bearing 532, a first gear 533, a second gear 534 and a transmission rod 535. The ball screw 531 includes a nut pair 5311 and a screw pair 5312. The nut pair 5311 is rotatably arranged at the end of the accommodating cavity 11 through the first bearing 532. The first gear 533 is sleeved on the nut pair 5311. One end of the transmission rod 535 is provided with a second gear 534. The other end of the transmission rod 535 is connected to the first gear 534. The shielding assembly 13 is connected in a transmission manner, with the first gear 533 meshing with the second gear 534. One end of the screw pair 5312 is connected to the contact plate 51. A screw slot 111 is provided at the end of the accommodating chamber 11. The other end of the screw pair 5312 passes through the nut pair 5311 and enters the screw slot 111. Under the action of the contact plate 51, the screw pair 5312 reciprocates along the screw slot 111 and drives the nut pair 5311 to rotate, thereby actuating the transmission rod 535 and driving the shielding assembly 13. Furthermore, after the ball screw 531 is provided, when the contact plate 51 is pushed up by the adjustment spring 52, the screw pair 5312 rotates the nut pair 5311, which can slow the ejection speed of the contact plate 51, allowing the entire sunshade mechanism 4 to be ejected slowly, preventing the sunshade mechanism 4 from being ejected quickly and causing injury to the user.

[0054] Since the sunshade mechanism 4 needs to be removed from the accommodating cavity 11 below the interlocking slot 12, the outward-folding shielding assembly 13 may scratch the user when the user loosens the sunshade mechanism 4. In addition, if the shielding assembly 13 is rotated and unfolded, it may be damaged by the impact of external objects during use. In severe cases, the transmission assembly 53 may be pulled and damaged, making the entire assembly unusable. Therefore, the shielding assembly 13 includes a shielding plate 131, a translation rack 132, and a third gear 536. The third gear 536 is arranged at one end of the transmission rod 535 near the shielding plate 131. The bottom of the shielding plate 131 is provided with a translation rack 132, and the third gear 536 is engaged with the translation rack 132. The use of a lateral translation method ensures that the user will not touch the shielding assembly 13 when taking in and out the sunshade mechanism 4, thereby preventing safety accidents. At the same time, it can reduce the possibility of the shielding assembly 13 being damaged by the impact of external objects on the shielding assembly 13 and causing damage to the transmission assembly 53.

[0055] Specifically, those skilled in the art may open corresponding channels or grooves in the table top 1 according to the structure of the transmission assembly 53 to accommodate the transmission assembly 53 and corresponding transmission components such as gears to ensure the normal operation of the device, without specific limitation.

[0056] Preferably, a guide column is provided on the side of the translation rack 132 close to the table top 1, and a guide groove is provided on the table top 1 corresponding to the guide column, so that the shielding plate 131 will not be detached during the reciprocating movement, thereby ensuring the shielding effect and smooth displacement.

[0057] In this embodiment, a shielding groove 121 is provided at the open end of the engaging slide groove 12 corresponding to the shielding component 13, and the shielding plate 131 is moved back and forth along the shielding groove 121 under the action of the third gear 536, that is, the shielding component 13 is embedded in the table top 1 as a whole and does not protrude from the side wall of the table top 1, thereby preventing external objects from interfering with the movement of the third gear 536 and the translation rack 132, thereby ensuring that the opening and closing actions of the shielding plate 131 can be carried out normally.

[0058] In this embodiment, the connecting assembly 42 comprises a cover plate 421, a rotating screw plate 422, and a connecting post 423. The connecting post 423 is mounted on the cover plate 421, and the rotating screw plate 422 is sleeved onto the connecting post 423. The connecting post 423 is detachably connected to the parasol body 41. The outer surface of the cover plate 421 is threadedly connected to the inner wall of the open end of the accommodating cavity 11. The rotating screw plate 422 can be raised and lowered along the connecting post 423 to control the tension between the connecting assembly 42 and the interlocking groove 12, locking the connection when necessary. Specifically, the diameter of the cover plate 421 is not less than the diameter of the rotating screw plate 422. This arrangement ensures that the supporting structure of the connecting assembly 42 is stable and that the connecting assembly 42 reliably supports the parasol body 41. Furthermore, the detachable connection between the connecting post 423 and the parasol body 41 allows for quick replacement of the parasol body 41. Furthermore, the parasol body 41 is connected to the connecting post 423 via a threaded sleeve. The threaded sleeve is fitted over the parasol body 41's handle, and a locking bolt is provided at the bottom of the handle to secure the handle within the threaded sleeve. The threaded sleeve is then screwed together with the connecting post 423. After the threaded sleeve is loosened and removed, the user can hold the parasol body 41 using the threaded sleeve. This allows the parasol body 41 to be used independently in special circumstances, improving the overall adaptability of the device.

[0059] Since the sunshade mechanism 4 is entirely placed within the accommodating cavity 11, it needs to be tightened or loosened when placed in or taken out. To ensure convenient operation and prevent slipping, a rotating handle 424 is provided on the side of the cover plate 421 away from the connecting post 423. The engaging groove 12 is generally cross-shaped. During use, the cover plate 421, the rotating handle 424, and part of the connecting post 423 are engaged within the engaging groove 12, and the lower surface of the rotating screw plate 422 abuts against the table top 1. At the same time, the rotating handle 424 allows the user to pull and grip the sunshade mechanism 4, making it convenient for the user to place the connecting assembly 42 as a whole into the engaging groove 12.

[0060] Although the side opening of the interlocking chute 12 can be blocked by the shielding assembly 13, the interlocking chute 12 is cross-shaped as a whole and still has an opening at the top. If it is not blocked, not only will foreign objects easily enter, but also objects such as food and toys may roll into the interlocking chute 12 during a picnic, which can easily give users a bad experience. Therefore, in this embodiment, a rotating baffle 14 is provided above the interlocking chute 12. The rotating baffle 14 is hinged to the table top 1. When the rotating baffle 14 abuts the table top 1, the upper surface of the rotating baffle 14 is flush with the upper surface of the table top 1, and the projection area of ​​the interlocking chute 12 in the direction perpendicular to the table top 1 is within the projection area of ​​the rotating baffle 14. The top of the interlocking chute 12 is blocked by the rotating baffle 14. When in use, the rotating baffle 14 is tilted on the surface of the table top 1, which can block objects on the surface of the table top 1 and effectively prevent objects from rolling into the interlocking chute 12.

[0061] Preferably, protective membranes are provided on both sides of the interlocking chute 12. The protective membranes are made of rubber or silicone sheets and extend from both sides of the interlocking chute 12 to the middle of the interlocking chute 12 and abut against it. During use, the connecting column 423 pushes open the intersection of the protective membranes and slides along the interlocking chute 12, and the lower surface of the rotating screw plate 422 abuts against the protective membrane. After the protective membranes are provided, when the sunshade mechanism 4 is inserted into the interlocking chute 12 and the rotating baffle 14 is opened, the top of the interlocking chute 12 also has a simple shielding function, which can prevent lighter impurities such as leaves and dust from entering the interlocking chute 12, ensuring that the connecting component 42 slides smoothly within the interlocking chute 12.

[0062] After being set, the rotating baffle 14 can block the top of the interlocking slot 12, but it needs to be manually flipped up. Since the sunshade mechanism 4 is relatively long, it usually requires the user to operate it with both hands during placement. If the rotating baffle 14 is not flipped up in advance, the user experience will be poor. Therefore, the present invention also provides a lifting assembly 15, which is vertically arranged in the table top 1. The lifting assembly 15 is connected to the transmission assembly 53. The transmission assembly 53 drives the lifting assembly 15 downward when the shielding assembly 13 is closed, and drives the lifting assembly 15 upward when the shielding assembly 13 is opened. Therefore, when the sunshade mechanism 4 is pulled out or put in, the rotating baffle 14 is automatically opened or closed, further simplifying the operation process. The user only needs to complete the removal, placement, and insertion of the sunshade mechanism 4 without complicated operations, effectively improving the user experience.

[0063] In this embodiment, the lifting assembly 15 includes a lifting column 151 and a lifting rack 152. A lifting gear set 153 is provided on the transmission rod 535. A lifting rack 152 is provided on the side of the lifting column 151 near the transmission rod 535, and the lifting rack 152 is meshed with the lifting gear set 153. The lifting column 151 is arranged on the side of the hinge point between the rotating baffle 14 and the table top 1 near the engaging groove 12, and the lifting column 151 abuts the rotating baffle 14. When the transmission rod 535 drives the shielding assembly 13 to close, it simultaneously drives the lifting column 151 down. When the transmission rod 535 drives the shielding assembly 13 to open, it simultaneously drives the lifting column 151 up. Specifically, the lifting gear set 153 adopts a double gear structure, with one gear mounted on the transmission rod 535 and then transmitted through the other gear and the lifting rack 152, so that the lifting and lowering of the lifting column 151 can cooperate with the shielding assembly 13 to ensure the opening and closing effect.

[0064] In this embodiment, a through hole 112 is provided at the bottom of the accommodating cavity 11 , and the through hole 112 enables the accommodating cavity 11 to communicate with the outside of the table top 1 .

[0065] In this embodiment, the support frame 3 includes a first support 31, a second support 32, a first connecting rod 33, a second connecting rod 34 and a lifting rod 35. The two ends of the first connecting rod 33 and the second connecting rod 34 are hinged on the first support 31 and the second support 32 respectively. The first connecting rod 33 and the second connecting rod 34 are arranged in parallel. The support frame 3 as a whole forms a four-link structure. The table top 1 is arranged on the first support 31, and the seat 2 is hinged to the middle part of the first connecting rod 33 and the second connecting rod 34. One end of the lifting rod 35 is provided with a support wheel, and the other end of the lifting rod 35 is hinged to the hinge point of the seat 2 and the first connecting rod 33 and continues to extend obliquely to the middle and upper part of the side wall of the seat 2, and finally is connected to the fixing hole on the side wall of the seat 2 through a pin.

[0066] In this embodiment, the table top 1 is connected to the support frame 3 via a rotating disk 36. The rotating disk 36 enables the table top 1 to rotate horizontally, thereby further changing the shading range of the sunshade mechanism 4 and improving the adaptability of the present invention.

[0067] In this embodiment, a connecting pin hole is provided on the side wall of the table top 1, and a placement slot is provided in the area covered by the rotating baffle 14 on the table top 1. A connecting pin is placed in the placement slot. The length of the connecting pin is twice the length of the connecting pin hole. This allows the two picnic table and chair assemblies to be fixed together via the connecting pin, preventing the table top 1 from rotating and separating, causing items to fall. Preferably, one end of the connecting pin is threaded, while the other end is unthreaded. This allows the threaded end to be screwed into the connecting pin hole, while the unthreaded end can be inserted and removed, preventing the connecting pin from falling or the two picnic table and chair assemblies from being unable to separate.

[0068] like Figure 16 As shown, in this embodiment, an electromagnetic tensioning mechanism 425 is disposed between the cover plate 421 and the rotating screw plate 422. The ends of the electromagnetic tensioning mechanism 425 are connected to the rotating guide slots 4252 of the cover plate 421 and the rotating screw plate 422, respectively, via telescopic guide posts 4251. This allows the electromagnetic tensioning mechanism 425 to cling to and rotate around the connecting post 423, preventing obstruction when the connecting assembly 42 engages the engaging slot 12. The electromagnetic tensioning mechanism 425 includes a first magnetic pole 4253 and a second magnetic pole 4254, which are disposed on the cover plate 421 and the rotating screw plate 422, respectively. The electromagnetic tensioning mechanism 425 is electrically connected to a switch on the parasol body 41, which is disposed on the connecting post 423. At the same time, the electromagnetic tensioning mechanism 425 has a built-in battery. When the switch of the parasol body 41 is triggered, the first magnetic pole 4253 and the second magnetic pole 4254 are energized and attracted to each other, generating a pulling force in the part of the rotating screw plate 422 that does not contact the engaging groove 12, thereby making the support of the connecting component 42 more stable.

[0069] Preferably, two sets of electromagnetic tensioning mechanisms 425 are provided, connected by a curved rod. This ensures that the two sets of electromagnetic tensioning mechanisms 425 are symmetrically distributed around the connecting column 423, allowing them to rotate synchronously during rotation. Specifically, the curved rods are positioned within the rotating guide grooves 4252, and two curved rods can be arranged to form a ring-shaped structure to ensure uniform force transmission between the two sets of electromagnetic tensioning mechanisms 425. Furthermore, a solar panel is provided on the surface of the parasol body 41, electrically connected to the battery of the electromagnetic tensioning mechanism 425, thereby replenishing the power of the electromagnetic tensioning mechanism 425 during use.

[0070] Although terms such as "accommodation cavity" and "sunshading mechanism" are frequently used in this document, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention; the terms "first," "second," and so on (if any) in the description and claims of the embodiments of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A picnic table and chair assembly with a sunshade mechanism, comprising a table top, a seat, and a support frame, wherein the table top and the seat are mounted on the support frame, and when the support frame is unfolded, the table top and the seat are parallel to a horizontal plane, and the height of the table top is higher than that of the seat, characterized in that: include: a receiving cavity, arranged at one end of the table board in the width direction, extending from the side wall of the table board toward the interior of the table board; a sunshade mechanism, disposed in the accommodating cavity, comprising a parasol body and a connecting assembly, wherein the parasol body and the connecting assembly are detachably connected, and the connecting assembly is connected to the open end of the accommodating cavity via a threaded connection; A fitting chute is provided on the top of the table board and extends from the side wall of the table board to the inside of the table board. A shielding component is provided at the starting end of the fitting chute, and the shielding component is used to open or close the entrance of the fitting chute; the connecting component can fit into the fitting chute and slide back and forth along the fitting chute, so that the parasol body is perpendicular to the table board; The telescopic mechanism is provided at the end of the accommodating cavity and includes a contact plate, an adjustment spring, and a transmission assembly. The adjustment spring is provided between the end of the accommodating cavity and the contact plate, and the two ends of the transmission assembly are respectively in transmission connection with the contact plate and the shielding assembly. When the sunshade mechanism is placed in or removed from the accommodating cavity, the contact plate is pushed up by the parasol body or the adjustment spring, thereby causing the transmission assembly to operate and drive the shielding assembly to open or close. The transmission assembly includes a ball screw, a first bearing, a first gear, a second gear and a transmission rod. The ball screw includes a nut pair and a screw pair. The nut pair is rotatably arranged at the end of the accommodating cavity through the first bearing. The first gear is sleeved on the nut pair. One end of the transmission rod is provided with the second gear. The other end of the transmission rod is transmission-connected to the shielding assembly, and the first gear is meshed with the second gear. One end of the screw pair is connected to the contact plate, a screw slot is provided at the end of the accommodating cavity, the other end of the screw pair passes through the nut pair and enters the screw slot, and the screw pair reciprocates along the screw slot under the action of the contact plate and drives the nut pair to rotate, thereby causing the transmission rod to move and drive the shielding component; The shielding assembly includes a shielding plate, a translation rack and a third gear, the third gear is arranged at one end of the transmission rod close to the shielding plate, the translation rack is provided at the bottom of the shielding plate, and the third gear is engaged with the translation rack; The opening end of the engaging slide groove is provided with a shielding groove corresponding to the shielding assembly, and the shielding plate is reset along the shielding groove under the action of the third gear.

2. The picnic table and chair assembly with a sunshade mechanism according to claim 1, characterized in that: The connecting assembly includes a cover plate, a rotating screw plate and a connecting column. The connecting column is arranged on the cover plate, and the rotating screw plate is sleeved on the connecting column. The connecting column is detachably connected to the parasol body; the outer surface of the cover plate is connected to the inner wall of the open end of the accommodating cavity through a threaded connection.

3. The picnic table and chair assembly with a sunshade mechanism according to claim 2, characterized in that: A rotating handle is provided on the side of the cover plate away from the connecting column, and the engaging groove is cross-shaped as a whole; when in use, the cover plate, the rotating handle and part of the connecting column are engaged in the engaging groove, and the lower surface of the rotating screw plate abuts against the table top.

4. The picnic table and chair assembly with a sunshade mechanism according to claim 1, characterized in that: A rotating baffle is provided above the engaging groove, and the rotating baffle is hinged to the table board; when the rotating baffle abuts against the table board, the upper surface of the rotating baffle is flush with the upper surface of the table board, and in the direction perpendicular to the table board, the projection area of ​​the engaging groove is within the projection area of ​​the rotating baffle.

5. The picnic table and chair assembly provided with a sunshade mechanism according to claim 4, characterized in that: It also includes a lifting component, which is arranged in the table top along the vertical direction and is in transmission connection with the transmission component.

6. The picnic table and chair assembly with a sunshade mechanism according to claim 5, characterized in that: The lifting assembly includes a lifting column and a lifting rack. A lifting gear set is provided on the transmission rod. The lifting rack is provided on the side of the lifting column close to the transmission rod, and the lifting rack is engaged with the lifting gear set. The lifting column is arranged on the side of the hinge point of the rotating baffle and the table board close to the engaging groove, and the lifting column abuts against the rotating baffle. When the transmission rod drives the shielding assembly to close, it simultaneously drives the lifting column to descend. When the transmission rod drives the shielding assembly to open, it simultaneously drives the lifting column to rise.

7. The picnic table and chair assembly with a sunshade mechanism according to claim 1, characterized in that: A through hole is provided at the bottom of the accommodating cavity, and the through hole enables the accommodating cavity to communicate with the outside of the table top.

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