Armrest folding structure and director chair

Abstract

The utility model discloses an armrest folding structure and a director chair and aims to overcome the defects that in the folding process of the director chair, the armrest position is prone to clamping hands, the size is large after the director chair is folded, and a backrest rod is prone to shaking. The armrest folding structure comprises an armrest rod and a supporting frame, the two ends of the armrest rod are connected with telescopic rods, the telescopic rods are telescopically connected to the supporting frame, and the armrest rod is pulled upwards and pressed downwards to achieve stretching and folding. The director chair comprises a chair frame, an armrest folding structure is installed on the chair frame, a backrest connecting seat is installed on an armrest rod, the backrest connecting seat is hinged to a backrest rod, a sunken groove is formed in the backrest connecting seat, and the side wall of the sunken groove limits the rear side, the left side and the right side of the lower portion of the backrest rod. Due to the armrest folding structure, the size is small after the armrest is folded, hands are not prone to being clamped in the folding process, and the backrest rod is good in stability and not prone to shaking.

Description

Technical Field

[0001] The utility model relates to furniture, and more particularly to an armrest folding structure and a director's chair. Background Art

[0002] At present, there are many types of director chairs with various functions. In order to facilitate carrying, many director chairs are designed to be very light and foldable for easy storage. However, in actual use, it is found that the armrests are easy to pinch hands during the folding process of the director chair. The volume is still large after folding. The armrests fold outward, which increases the thickness of the packaging. In addition, the backrest rod is only stressed through one hinge point, which has poor stability and is easy to shake under stress after long-term use. Utility Model Content

[0003] In order to overcome the above shortcomings, the utility model provides an armrest folding structure and a director's chair. The armrest has a small volume after being folded, and it is not easy to pinch the hand during the folding process. During the use of the director's chair, the backrest rod has good stability and is not easy to shake.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a folding armrest structure, including an armrest rod and a support frame, both ends of the armrest rod are connected to telescopic rods, the telescopic rods are telescopically connected to the support frame, and the armrest rod can be extended and folded by pulling up and pressing down.

[0005] When the handrail is in use, the handrail is pulled up to extend the telescopic rod upward and the handrail is stretched upward. When the handrail is folded, the handrail is pressed down to retract the telescopic rod into the support frame, and the volume is small after retracting and folding. The handrail does not need to be rotated during the process of pulling up and pressing down the handrail, and it is not easy to get your hands caught. The handrail folding structure of the patent application takes up a small volume of the handrail position after folding, and it is not easy to get your hands caught during the folding process.

[0006] Preferably, locking mechanisms are provided on the support frame and the telescopic rod correspondingly, a spring pin is provided on the locking mechanism, a locking hole is provided on the telescopic rod, and the spring pin is inserted into the locking hole to limit the telescopic rod.

[0007] After the handrail is pulled up and extended to the right position, the spring pin is inserted into the locking hole to lock the telescopic rod and ensure the stability of the handrail installation. Before the handrail is folded, the spring pin is pushed away from the locking hole to unload the constraint of the spring pin on the telescopic rod, and then the handrail can be pressed down and folded.

[0008] Preferably, a positioning spring is installed between the elastic pin and the support frame.

[0009] The positioning spring has a positioning effect on the spring pin, ensuring that the spring pin can be inserted into the locking hole on the telescopic rod.

[0010] Preferably, a push block is installed on the support frame, a rotatable connecting rod is installed on the support frame, a top block is provided on the connecting rod, and the push block is installed between the elastic pin and the top block; the connecting rod rotates so that the top block drives the push block to move, thereby driving the elastic pin to move out of the locking hole.

[0011] When the armrest is folded, the connecting rod rotates, the top block on the connecting rod deflects, and the top block hits the push block, causing the push block to move, and the push block pushes the elastic pin to move, so that the elastic pin is separated from the locking hole. When the entire director's chair is folded, the connecting rod will rotate with it, and the elastic pin will be separated from the locking hole at the same time, which facilitates the operation.

[0012] Preferably, an inclined guide surface is provided on the elastic pin, an inclined push surface is provided on the push block, the push surface is in contact with the guide surface, and an inclined push surface is provided on the push block, the push surface is in contact with the push block.

[0013] During the rotation of the connecting rod, the inclined pushing surface on the push block can push the push block to move. When the push block moves, the inclined pushing surface on it fits with the inclined guide surface on the elastic pin and pushes the elastic pin to move, so that the elastic pin is separated from the locking hole.

[0014] Preferably, a cross bar is provided on the support frame, both ends of the cross bar are connected to the locking head, and the spring pin and the push block are both installed on the locking head.

[0015] The arrangement of the locking head facilitates the installation of the locking mechanism.

[0016] Preferably, sleeves are provided on the support frame and corresponding to the telescopic rod, and the telescopic rod and the sleeves are adapted to be assembled together.

[0017] The telescopic rod and sleeve are matched together, which is stable and reliable.

[0018] A director's chair comprises a chair frame, a folding armrest structure is installed on the chair frame, a backrest connecting seat is installed on the armrest rod, the backrest connecting seat is hinged to the backrest rod, a recessed groove is provided on the backrest connecting seat, and the side walls of the recessed groove limit the rear side and left and right sides of the lower part of the backrest rod.

[0019] After the backrest rod is installed, the rear side and the left and right sides of the lower part of the backrest rod are limited, so that the lower part of the backrest rod can achieve rear support, left support and right support. Through the support force in three directions, the stability of the force on the backrest rod is guaranteed, and the backrest rod is not easy to shake during use.

[0020] Preferably, a support assembly is provided on the chair frame, and both sides of the support assembly are connected to the support frame. The support assembly includes two U-shaped support rods, and the open ends of the two support rods are hinged together. The support rods are hinged to the support frame, and connecting rods are hinged on both sides of the support rods, and the two connecting rods are hinged together relatively.

[0021] The support assembly is connected between the two support frames to ensure the stability of the entire director's chair. A seat cloth is connected between the two support frames for easy sitting. The two support rods are flattened to lock the entire director's chair. In the locked state, a flexible or hard net is set on the two support rods for storing items. The two connecting rods on the front side of the director's chair are hinged together, and the two connecting rods on the back side of the director's chair are hinged together, so that the entire director's chair forms a stable structure.

[0022] Preferably, a connector is provided at the lower end of the backrest rod, the connector is in an L-shaped structure, and the connector is installed in the recessed groove.

[0023] The backrest rod is hinged to the backrest connecting seat through a connecting head arranged at the lower end, so the assembly is convenient and the connection is reliable. The L-shaped connecting head has good adaptability to the concave groove, and the limiting is more reliable.

[0024] Compared with the prior art, the present invention has the following beneficial effects: (1) the armrest folding structure makes the armrest small in size after folding, and it is not easy to pinch the hand during folding; (2) when the director's chair is in use, the backrest rod has good stability and is not easy to shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of embodiment 1 of the utility model.

[0026] Figure 2 It is a schematic diagram of the structure of Example 1 of the utility model after folding.

[0027] Figure 3 It is a schematic diagram of the internal structure of the locking mechanism of the utility model.

[0028] Figure 4 It is a cross-sectional view of the locking mechanism position of the utility model.

[0029] Figure 5 It is a structural schematic diagram of embodiment 2 of the present utility model.

[0030] In the figure: 1, handrail rod, 2, support frame, 3, telescopic rod, 4, sleeve, 5, spring pin, 6, locking hole, 7, positioning spring, 8, pushing block, 9, connecting rod, 10, top block, 11, guide surface, 12, pushing surface, 13, top pushing surface, 14, cross bar, 15, locking head, 16, flange, 17, mounting seat, 18, connecting sleeve, 19, horizontal mounting groove, 20, vertical mounting groove, 21, connecting ear, 22, backrest connecting seat, 23, plug-in sleeve, 24, backrest rod, 25, recessed groove, 26, connecting head, 27, support rod, 28, sliding sleeve, 29, bottom rod, 30, support joint, 31, support boss, 32, storage plate, 33, support rod. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0032] Embodiment 1: A folding armrest structure (see attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 ), including a handrail 1 and a support frame 2, two support frames 2 are arranged opposite to each other on the left and right, each support frame 2 is provided with a handrail 1, both ends of the handrail 1 are connected to a telescopic rod 3, the telescopic rod 3 is telescopically connected to the support frame 2, and the handrail 1 is extended and folded by pulling up and pressing down. A sleeve 4 is provided on the support frame 2 and corresponding to the telescopic rod 3, and the telescopic rod 3 is adapted to be assembled with the sleeve 4.

[0033] The support frame 2 and the telescopic rod 3 are provided with locking mechanisms corresponding to each other, and the locking mechanisms are used to realize the locking and positioning of the telescopic rod 3. When the telescopic rod 3 is extended upward to the right position, the locking mechanism locks the telescopic rod 3. When the telescopic rod 3 needs to be moved, the locking mechanism is first unlocked. A spring pin 5 is provided on the locking mechanism, and a locking hole 6 is provided on the telescopic rod 3. The spring pin 5 is inserted into the locking hole 6 to limit the position of the telescopic rod 3. A positioning spring 7 is installed between the spring pin 5 and the support frame 2.

[0034] A push block 8 is installed on the support frame 2, a rotatable connecting rod 9 is installed on the support frame 2, a top block 10 is arranged on the connecting rod 9, and the push block 8 is installed between the elastic pin 5 and the top block 10; the connecting rod 9 rotates to make the top block 10 drive the push block 8 to move, thereby driving the elastic pin 5 to move out of the locking hole 6. An inclined guide surface 11 is arranged on the elastic pin 5, an inclined push surface 12 is arranged on the push block 8, and the push surface 12 is in contact with the guide surface 11, and an inclined push surface 13 is arranged on the top block 10, and the push surface 13 is in contact with the push block 8.

[0035] A cross bar 14 is provided on the support frame 2, and locking heads 15 are connected to both ends of the cross bar 14. The cross bar 14 is a hollow tubular structure, and a flange 16 is provided on the outer wall of the locking head 15. The locking head 15 is inserted into the end of the cross bar 14, and the flange 16 is limited on the end surface of the cross bar 14. The elastic pin 5 and the push block 8 are both installed on the locking head 15. The sleeve 4 is connected to the mounting seat 17, and the mounting seat 17 extends downward and is sleeved outside the sleeve 4. A connecting sleeve 18 extending laterally is provided on the mounting seat 17, and the connecting sleeve 18 is connected to the sleeve 4. The end of the cross bar 14 is adapted to be inserted into the connecting sleeve 18. The telescopic rod 3 and the sleeve 4 are circumferentially locked to prevent mutual rotation. As long as the inner holes of the telescopic rod 3 and the sleeve 4 are set to a non-circular structure, the circumferential locking of the telescopic rod 3 and the sleeve 4 can be achieved.

[0036] like Figure 3 , Figure 4As shown, a transverse mounting groove 19 and a vertical mounting groove 20 are provided in the locking head 15, and the transverse mounting groove 19 and the vertical mounting groove 20 are connected to each other to form a T-shaped structure. The elastic pin 5 and the positioning spring 7 are installed in the transverse mounting groove 19, and the positioning spring 7 abuts between the elastic pin 5 and the transverse mounting groove 19. The push block 8 is installed in the vertical mounting groove 20, and the lower end of the push block 8 extends outward from the locking head 15 and the cross bar 14. A connecting ear 21 is provided on the outer wall of the connecting sleeve 18, and the connecting rod 9 is hinged to the connecting ear 21. The top block 10 is installed on the upper end of the connecting rod 9.

[0037] When the handrail 1 is in use, the handrail 1 is pulled up to make the telescopic rod 3 extend upward, and the handrail 1 is stretched upward. When the handrail 1 is folded, the handrail 1 is pressed down to make the telescopic rod 3 retract and fold into the support frame 2, and the volume is small after retracting and folding. The handrail 1 does not need to be rotated during the process of pulling up and pressing down the handrail 1, and it is not easy to get the hand pinched.

[0038] After the handrail 1 is pulled up and stretched to the right position, the spring pin 5 is inserted into the locking hole 6 to lock the telescopic rod 3 and ensure the stability of the installation of the handrail 1. Before the handrail 1 is folded, the spring pin 5 is pushed away from the locking hole 6 to unload the constraint of the spring pin 5 on the telescopic rod 3, and then the handrail 1 can be pressed down and folded. When the handrail 1 is folded, the connecting rod 9 rotates, and the top block 10 set on the connecting rod 9 deflects, and the top block 10 hits the push block 8, so that the push block 8 moves, and the push block 8 pushes the spring pin 5 to move, so that the spring pin 5 is disengaged from the locking hole 6. When the entire director's chair is folded, the connecting rod 9 will rotate with it, and the spring pin 5 will be disengaged from the locking hole 6 at the same time, which is convenient for operation.

[0039] A director's chair comprises a chair frame, a folding armrest structure is installed on the chair frame, a backrest connecting seat 22 is installed on an armrest rod 1, the backrest connecting seat 22 is arranged at the rear end of the armrest rod 1, a plug-in sleeve 23 extending downward is arranged on the backrest connecting seat 22, the upper end of the telescopic rod 3 on the rear side of the armrest rod 1 is adapted to be inserted in the plug-in sleeve 23, and an L-shaped elbow is connected between the telescopic rod 3 on the front side of the armrest rod 1 and the armrest rod 1. The backrest connecting seat 22 is hinged to the backrest rod 24, and the backrest rod 24 is tilted backward from bottom to top. A recessed groove 25 is provided on the backrest connecting seat 22, and the side walls of the recessed groove 25 limit the rear side and left and right sides of the lower part of the backrest rod 24. A connector 26 is arranged at the lower end of the backrest rod 24, and the connector 26 is an L-shaped structure and is installed in the recessed groove 25. After the backrest rod 24 is installed, the rear side and the left and right sides of the lower part of the backrest rod 24 are limited, so that the lower part of the backrest rod 24 can realize rear support, left support, and right support. The force of the backrest rod 24 is supported in three directions, which ensures the stability of the force of the backrest rod 24. The backrest rod 24 is not easy to shake during use. The backrest rod 24 is hinged to the backrest connecting seat 22 through the connector 26 set at the lower end, which is convenient to assemble and reliable. The L-shaped connector 26 has good adaptability to the concave groove 25, and the limit is more reliable.

[0040] A support assembly is arranged on the chair frame, and both sides of the support assembly are connected to the support frame 2. The support assembly includes two U-shaped support rods 27, and the open ends of the two support rods 27 are hinged together. The support rods 27 are hinged on the support frame 2, and both sides of the support rods 27 are hinged to the connecting rods 9, and the two connecting rods 9 are hinged together to form a V-shaped structure. A sliding sleeve 28 is arranged on the support frame 2 and corresponding to the support rod 27, and the sliding sleeve 28 is slidably arranged, and the support rod 27 is rotatably connected to the sliding sleeve 28. The support frame 2 includes two sleeves 4 and a bottom rod 29 arranged between the two sleeves 4. The two ends of the bottom rod 29 and the lower ends of the two sleeves 4 are connected to a support joint 30. A vertical plug hole and a horizontal plug hole are arranged on the support joint 30. The lower end of the sleeve 4 is inserted into the vertical plug hole, and the bottom rod 29 is inserted into the horizontal plug hole. The lower end of the support joint 30 protrudes downward to form a support boss 31, and the support boss 31 supports the entire director's chair. The sliding sleeve 28 is slidably installed on the sleeve 4. The outer end of the support rod 27 is connected to the storage plate 32, the storage plate 32 and the support rod 27 are hinged with a support rod 33, and the storage plate 32 is hinged with a connecting ear 21 on the connecting sleeve 18. The backrest cloth is connected between the two backrest rods 24, and the seat cloth is connected between the two cross bars 14 to form a complete director's chair.

[0041] The support assembly is connected between the two support frames 2 to ensure the stability of the entire director's chair. The two support rods 27 are flattened to lock the entire director's chair. In the locked state, a flexible or hard net is set on the two support rods 27 for storing items. The two connecting rods 9 on the front side of the director's chair are hinged together, and the two connecting rods 9 on the back side of the director's chair are hinged together, so that the entire director's chair forms a stable structure.

[0042] When the director's chair is folded, the two support frames 2 are moved closer to each other, the backrest rod 24 is tilted forward, and then the armrest rod 1 is pressed down to retract the telescopic rod 3 into the sleeve 4, and the storage plate 32 is folded and stored, thereby forming a plate-shaped folding structure with a small volume.

[0043] Embodiment 2: A folding armrest structure (see attached Figure 3 , Attachment Figure 4 , Attachment Figure 5 ), including a handrail 1 and a support frame 2, two support frames 2 are arranged opposite to each other on the left and right, each support frame 2 is provided with a handrail 1, both ends of the handrail 1 are connected to a telescopic rod 3, the telescopic rod 3 is telescopically connected to the support frame 2, and the handrail 1 is extended and folded by pulling up and pressing down. A sleeve 4 is provided on the support frame 2 and corresponding to the telescopic rod 3, and the telescopic rod 3 is adapted to be assembled with the sleeve 4.

[0044] The support frame 2 and the telescopic rod 3 are provided with locking mechanisms corresponding to each other, and the locking mechanisms are used to realize the locking and positioning of the telescopic rod 3. When the telescopic rod 3 is extended upward to the right position, the locking mechanism locks the telescopic rod 3. When the telescopic rod 3 needs to be moved, the locking mechanism is first unlocked. A spring pin 5 is provided on the locking mechanism, and a locking hole 6 is provided on the telescopic rod 3. The spring pin 5 is inserted into the locking hole 6 to limit the position of the telescopic rod 3. A positioning spring 7 is installed between the spring pin 5 and the support frame 2.

[0045] A push block 8 is installed on the support frame 2, a rotatable connecting rod 9 is installed on the support frame 2, a top block 10 is arranged on the connecting rod 9, and the push block 8 is installed between the elastic pin 5 and the top block 10; the connecting rod 9 rotates to make the top block 10 drive the push block 8 to move, thereby driving the elastic pin 5 to move out of the locking hole 6. An inclined guide surface 11 is arranged on the elastic pin 5, an inclined push surface 12 is arranged on the push block 8, and the push surface 12 is in contact with the guide surface 11, and an inclined push surface 13 is arranged on the top block 10, and the push surface 13 is in contact with the push block 8.

[0046] A cross bar 14 is provided on the support frame 2, and locking heads 15 are connected to both ends of the cross bar 14. The cross bar 14 is a hollow tubular structure, and a flange 16 is provided on the outer wall of the locking head 15. The locking head 15 is inserted into the end of the cross bar 14, and the flange 16 is limited on the end surface of the cross bar 14. The elastic pin 5 and the push block 8 are both installed on the locking head 15. The sleeve 4 is connected to the mounting seat 17, and the mounting seat 17 extends downward and is sleeved outside the sleeve 4. A connecting sleeve 18 extending laterally is provided on the mounting seat 17, and the connecting sleeve 18 is connected to the sleeve 4. The end of the cross bar 14 is adapted to be inserted into the connecting sleeve 18. The telescopic rod 3 and the sleeve 4 are circumferentially locked to prevent mutual rotation. As long as the inner holes of the telescopic rod 3 and the sleeve 4 are set to a non-circular structure, the circumferential locking of the telescopic rod 3 and the sleeve 4 can be achieved.

[0047] like Figure 3 , Figure 4 As shown, a transverse mounting groove 19 and a vertical mounting groove 20 are provided in the locking head 15, and the transverse mounting groove 19 and the vertical mounting groove 20 are connected to each other to form a T-shaped structure. The elastic pin 5 and the positioning spring 7 are installed in the transverse mounting groove 19, and the positioning spring 7 abuts between the elastic pin 5 and the transverse mounting groove 19. The push block 8 is installed in the vertical mounting groove 20, and the lower end of the push block 8 extends outward from the locking head 15 and the cross bar 14. A connecting ear 21 is provided on the outer wall of the connecting sleeve 18, and the connecting rod 9 is hinged to the connecting ear 21. The top block 10 is installed on the upper end of the connecting rod 9.

[0048] When the handrail 1 is in use, the handrail 1 is pulled up to make the telescopic rod 3 extend upward, and the handrail 1 is stretched upward. When the handrail 1 is folded, the handrail 1 is pressed down to make the telescopic rod 3 retract and fold into the support frame 2, and the volume is small after retracting and folding. The handrail 1 does not need to be rotated during the process of pulling up and pressing down the handrail 1, and it is not easy to get the hand pinched.

[0049] After the handrail 1 is pulled up and stretched to the right position, the spring pin 5 is inserted into the locking hole 6 to lock the telescopic rod 3 and ensure the stability of the installation of the handrail 1. Before the handrail 1 is folded, the spring pin 5 is pushed away from the locking hole 6 to unload the constraint of the spring pin 5 on the telescopic rod 3, and then the handrail 1 can be pressed down and folded. When the handrail 1 is folded, the connecting rod 9 rotates, and the top block 10 set on the connecting rod 9 deflects, and the top block 10 hits the push block 8, so that the push block 8 moves, and the push block 8 pushes the spring pin 5 to move, so that the spring pin 5 is disengaged from the locking hole 6. When the entire director's chair is folded, the connecting rod 9 will rotate with it, and the spring pin 5 will be disengaged from the locking hole 6 at the same time, which is convenient for operation.

[0050] A director's chair comprises a chair frame, a folding armrest structure is installed on the chair frame, a backrest connecting seat 22 is installed on an armrest rod 1, the backrest connecting seat 22 is arranged at the rear end of the armrest rod 1, a plug-in sleeve 23 extending downward is arranged on the backrest connecting seat 22, the upper end of the telescopic rod 3 on the rear side of the armrest rod 1 is adapted to be inserted in the plug-in sleeve 23, and an L-shaped elbow is connected between the telescopic rod 3 on the front side of the armrest rod 1 and the armrest rod 1. The backrest connecting seat 22 is hinged to the backrest rod 24, and the backrest rod 24 is tilted backward from bottom to top. A recessed groove 25 is provided on the backrest connecting seat 22, and the side walls of the recessed groove 25 limit the rear side and left and right sides of the lower part of the backrest rod 24. A connector 26 is arranged at the lower end of the backrest rod 24, and the connector 26 is an L-shaped structure and is installed in the recessed groove 25. After the backrest rod 24 is installed, the rear side and the left and right sides of the lower part of the backrest rod 24 are limited, so that the lower part of the backrest rod 24 can realize rear support, left support, and right support. The force of the backrest rod 24 is supported in three directions, which ensures the stability of the force of the backrest rod 24. The backrest rod 24 is not easy to shake during use. The backrest rod 24 is hinged to the backrest connecting seat 22 through the connector 26 set at the lower end, which is convenient to assemble and reliable. The L-shaped connector 26 has good adaptability to the concave groove 25, and the limit is more reliable.

[0051] A support assembly is provided on the chair frame, and both sides of the support assembly are connected to the support frame 2. The support assembly includes two U-shaped support rods 27, and the open ends of the two support rods 27 are hinged together. The support rods 27 are hinged on the support frame 2, and both sides of the support rods 27 are hinged to the connecting rods 9, and the two connecting rods 9 are hinged together to form a V-shaped structure. A sliding sleeve 28 is provided on the support frame 2 and corresponds to the support rod 27. The sliding sleeve 28 is slidably provided, and the support rod 27 is rotatably connected to the sliding sleeve 28. The support frame 2 includes two sleeves 4 and a bottom rod 29 provided between the two sleeves 4. The two ends of the bottom rod 29 and the sleeves 4 are integrally structured, thereby forming a U-shaped support frame 2, and the entire director's chair is supported and stressed by the bottom rod 29. The sliding sleeve 28 is slidably installed on the sleeve 4. The outer end of the support rod 27 is connected to the storage plate 32, and a support rod 33 is hinged between the storage plate 32 and the support rod 27. The storage plate 32 is hinged to the connecting ear 21 on the connecting sleeve 18. The backrest cloth is connected between the two backrest rods 24, and the seat cloth is connected between the two crossbars 14 to form a complete director's chair.

[0052] The support assembly is connected between the two support frames 2 to ensure the stability of the entire director's chair. The two support rods 27 are flattened to lock the entire director's chair. In the locked state, a flexible or hard net is set on the two support rods 27 for storing items. The two connecting rods 9 on the front side of the director's chair are hinged together, and the two connecting rods 9 on the back side of the director's chair are hinged together, so that the entire director's chair forms a stable structure.

[0053] When the director's chair is folded, the two support frames 2 are moved closer to each other, the backrest rod 24 is tilted forward, and then the armrest rod 1 is pressed down to retract the telescopic rod 3 into the sleeve 4, and the storage plate 32 is folded and stored, thereby forming a plate-shaped folding structure with a small volume.

[0054] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A folding armrest structure, characterized in that: It includes a handrail and a support frame. Both ends of the handrail are connected to telescopic rods. The telescopic rods are telescopically connected to the support frame. The handrail is extended and folded by pulling up and pressing down. Sleeves are correspondingly arranged on the support frame and the telescopic rod, and the telescopic rod is adapted to be assembled with the sleeves.

2. The armrest folding structure according to claim 1, characterized in that: The support frame and the telescopic rod are correspondingly provided with locking mechanisms, the locking mechanism is provided with an elastic pin, the telescopic rod is provided with a locking hole, and the elastic pin is inserted into the locking hole to limit the telescopic rod.

3. The armrest folding structure according to claim 2, characterized in that: A positioning spring is installed between the elastic pin and the supporting frame.

4. The armrest folding structure according to claim 2, characterized in that: A push block is installed on the support frame, a rotatable connecting rod is installed on the support frame, a top block is arranged on the connecting rod, and the push block is installed between the elastic pin and the top block; the connecting rod rotates to make the top block drive the push block to move, thereby driving the elastic pin to move out of the locking hole.

5. The armrest folding structure according to claim 4, characterized in that: The elastic pin is provided with an inclined guide surface, the push block is provided with an inclined push surface, the push surface is in contact with the guide surface, the push block is provided with an inclined push surface, the push surface is in contact with the push block.

6. The armrest folding structure according to claim 4, characterized in that: A cross bar is arranged on the support frame, both ends of the cross bar are connected with locking heads, and the spring pin and the push block are both installed on the locking heads.

7. A director's chair, characterized in that: It comprises a chair frame, on which the armrest folding structure described in any one of claims 1 to 6 is installed, a backrest connecting seat is installed on the armrest rod, the backrest connecting seat is hinged to the backrest rod, the backrest connecting seat is provided with a recessed groove, and the side walls of the recessed groove limit the rear side and left and right sides of the lower part of the backrest rod.

8. The director's chair according to claim 7, characterized in that: A support assembly is arranged on the chair frame, and both sides of the support assembly are connected to the support frame. The support assembly includes two U-shaped support rods, the open ends of the two support rods are hinged together, the support rods are hinged on the support frame, and connecting rods are hinged on both sides of the support rods, and the two connecting rods are hinged together.

9. The director's chair according to claim 7, characterized in that: A connecting head is arranged at the lower end of the backrest rod, the connecting head is in an L-shaped structure, and the connecting head is installed in the concave groove.

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