Leisure chair with caster locking mechanism

Abstract

The utility model discloses a leisure chair with a caster locking mechanism. The leisure chair comprises a mounting frame, the caster locking mechanism and an armrest adjusting mechanism, a gas spring is arranged in the middle of the upper end face of the mounting frame, a second mounting frame is arranged on the end face of the telescopic end of the gas spring, a supporting plate is mounted on the upper end face of the second mounting frame through bolts, a backrest mounting frame is mounted on the rear side of the lower end face of the supporting plate through bolts, and a backrest is mounted on the front side face of the upper end of the backrest mounting frame through bolts; a seat silica gel pad is installed on the upper end face of the supporting plate through bolts, and a backrest silica gel pad is installed on the front end face of the backrest through bolts. According to the leisure chair with the trundle locking mechanism, the groove is formed in the lower side of the locking block, so that the magnitude of the locking force of the trundle can be selected by lightly treading or heavily treading the pedal according to the use requirements, resetting is facilitated by lightly treading, locking is facilitated by heavily treading, and the problem that locking of the existing trundle locking mechanism is inconvenient to cancel after locking is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of lounge chair technology, specifically a lounge chair with a caster locking mechanism. Background Technology

[0002] A lounge chair is a type of chair designed for people to sit on. Its distinguishing feature is that the height of the seat can be adjusted. The seat slides vertically onto a base, which can be placed directly on the ground or has casters installed on its lower surface.

[0003] Existing caster locking mechanisms for lounge chairs typically involve a pedal and a locking block. When a user presses down the pedal, the locking block is brought close to the caster to lock it. However, this method has some drawbacks. Once locked, it is inconvenient to unlock the caster. Therefore, we propose a lounge chair with an integrated caster locking mechanism. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a lounge chair with a caster locking mechanism. By opening a groove on the lower side of the locking block, the locking force of the caster can be selected by lightly or heavily pressing the pedal according to the usage needs. Lightly pressing facilitates reset, while heavy pressing facilitates locking, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lounge chair with a caster locking mechanism, comprising a mounting frame, a caster locking mechanism, and an armrest adjustment mechanism;

[0006] Mounting bracket: A gas spring is provided in the middle of its upper end face. A second mounting bracket is provided on the end face of the telescopic end of the gas spring. A support plate is installed on the upper end face of the second mounting bracket by bolts. A backrest mounting bracket is installed on the rear side of the lower end face of the support plate by bolts. A backrest is installed on the front side of the upper end of the backrest mounting bracket by bolts. A seat silicone pad is installed on the upper end face of the support plate by bolts. A backrest silicone pad is installed on the front side of the backrest by bolts.

[0007] Caster locking mechanism: It includes positioning mounting plates, rotating seats, first mounting brackets and casters. The positioning mounting plates are symmetrically installed on the front and rear sides of the lower end face of the mounting bracket by bolts. The middle of the lower end face of the four positioning mounting plates is rotatably connected to the first mounting bracket by the rotating seats. The left and right inner walls of each first mounting bracket are rotatably connected to the casters. The middle of the front side of the upper end face of the two first mounting brackets on the same front side and the middle of the rear side of the upper end face of the two first mounting brackets on the same rear side are provided with clearance grooves.

[0008] Armrest adjustment mechanism: It is symmetrically arranged on the left and right sides in the middle of the lower end face of the mounting frame. This lounge chair with caster locking mechanism has a groove on the lower side of the locking block. The user can lightly or heavily press the pedal to select the locking force of the caster according to the usage needs. Lightly pressing makes it easy to reset, and heavily pressing makes it easy to lock. It effectively solves the problem that it is inconvenient to cancel the locking after the existing caster locking mechanism is locked.

[0009] Furthermore, the caster locking mechanism also includes a first support, a pivot, a lever, a torsion spring, a first rotating arm, and a pedal. The first supports are symmetrically arranged on the front side of the upper end face of two first mounting brackets on the same front side and the rear side of the upper end face of two first mounting brackets on the same rear side. A pivot is rotatably connected between the relative inner surfaces of the two first supports on the same first mounting bracket. A lever is provided on the lower side of the middle outer surface of each pivot. A torsion spring is provided between the relative inner surfaces of the two first supports on the same first mounting bracket and the adjacent end face of the lever. The torsion springs are respectively fixedly sleeved on the outer surfaces of adjacent pivots. The first rotating arms are respectively arranged on the left and right end faces of each pivot. A pedal is provided between the relative inner surfaces of the two first rotating arms on the same pivot. This is the driven mechanism of the caster locking mechanism.

[0010] Furthermore, the caster locking mechanism also includes a locking block, a second limiting groove, and a limiting slider. The second limiting groove is symmetrically opened on the front side of the upper end face of the two first mounting brackets on the same front side and the rear side of the upper end face of the two first mounting brackets on the same rear side. Limiting sliders are slidably connected between the left and right inner sides of the two second limiting grooves on the same first mounting bracket and between the left and right inner sides of the clearance groove. Locking blocks are fixedly connected between the lower end faces of the four limiting sliders on the same first mounting bracket. This constitutes a sliding limiting mechanism for the caster locking mechanism.

[0011] Furthermore, the caster locking mechanism also includes a second rotating arm, a first limiting groove, and a first limiting bracket. The second rotating arm is rotatably connected to the middle of the front face of the upper end face of two locking blocks on the same front side and the middle of the rear face of the upper end face of two locking blocks on the same rear side. The left and right sides of the two second rotating arms on the same locking block are rotatably connected to the first limiting bracket. The first limiting groove is opened in the middle of the front face of each second rotating arm. The first limiting groove on each second rotating arm is slidably connected to the front and rear end sliding columns of the adjacent paddles. This constitutes the rotation limiting mechanism of the caster locking mechanism.

[0012] Furthermore, the handrail adjustment mechanism includes a handrail fixing frame, a third rotating arm, a second limiting frame, a handrail sliding frame, a third limiting groove, and a handrail. The handrail fixing frames are symmetrically arranged on the lower end face of the support plate. The front and rear ends of the upper end faces of the two handrail fixing frames opposite to their outer ends are rotatably connected to the third rotating arm through the second support. The second limiting frame is rotatably connected between the middle outer sides of the two third rotating arms on the same handrail fixing frame. The handrail sliding frame is rotatably connected between the upper ends of the two third rotating arms on the same handrail fixing frame. The left and right ends of the two handrail sliding frames are provided with third limiting grooves. The handrail is slidably connected between the inner sides of the two third limiting grooves on the same handrail sliding frame. This constitutes the adjustment mechanism of the handrail adjustment mechanism.

[0013] Furthermore, the handrail adjustment mechanism also includes an adjustment knob, which is threadedly connected to the middle of the lower end face of the two handrail sliding frames and the middle of the opposite outer side of the two second supports located on the front side, and is a locking element of the handrail adjustment mechanism.

[0014] Furthermore, it also includes supports, which are symmetrically arranged on the right side of the lower end face of the support plate. An adjusting rod and a gas spring height adjustment mechanism are rotatably connected between the opposite inner surfaces of the two supports.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This lounge chair with a caster locking mechanism has the following advantages:

[0016] 1. The user sits on the silicone seat cushion and reaches up to pull the adjustment lever. The upward movement of the far end of the adjustment lever causes the ball at the inner end of the adjustment lever to move downward, pressing down the actuating lever of the gas spring. The downward movement of the actuating lever opens the valve body, connecting the air chambers on both sides of the piston head. Under the pressure of the user on the lounge chair, the telescopic end of the gas spring is compressed. Then, the user releases the adjustment lever, and the actuating lever returns to its original position, thus adjusting the height of the lounge chair. Next, the user loosens the adjustment knob on the outside of the second support, rotates the third rotating arm to the appropriate position, and then tightens the adjustment knob on the outside of the second support. Then, the user loosens the adjustment knob on the lower side of the armrest sliding frame, slides the armrest to the appropriate position, and then tightens the adjustment knob on the lower side of the armrest sliding frame, thus adjusting the position of the armrest. This method is suitable for users of different body types.

[0017] 2. When locking the casters, the user can lightly or firmly press the pedal as needed. To simply fix the chair in place, lightly pressing the pedal causes it to rotate downwards around its pivot. This rotation, via the first rotating arm, drives the pivot, which in turn rotates the lever. The lever, limited by the first limit bracket, then rotates the second rotating arm. Simultaneously, the lever's sliding pin slides against the first limit groove of the second rotating arm. Limited by the limit slider, the second rotating arm moves the locking block closer to the caster, locking it in place. To move the chair again, simply push the chair; the torsion spring's return action will move the locking block away from the caster. The locking mechanism allows the wheel to slide away from the wheel, thus unlocking it. When the user needs to move the chair or otherwise lock the wheel, they can press the pedal firmly to move the locking block closer to the wheel, allowing the lower groove of the locking block to pass over the wheel and lock the wheel in place. To unlock the wheel, the user can lift the pedal upwards. This chair with a wheel locking mechanism allows the user to adjust the locking force by pressing the pedal lightly or firmly, depending on their needs. Light pressing facilitates reset, while firm pressing locks the wheel, effectively solving the problem of inconvenience in unlocking existing wheel locking mechanisms. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of the handrail adjustment mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the caster locking mechanism of this utility model;

[0021] Figure 4 This is a cross-sectional view of the caster locking mechanism of this utility model.

[0022] In the diagram: 1. Mounting bracket, 2. Caster locking mechanism, 201. Positioning mounting plate, 202. Rotating seat, 203. First mounting bracket, 204. Caster, 205. First support, 206. Rotating shaft, 207. Paddle, 208. Torsion spring, 209. First rotating arm, 210. Pedal, 211. Second rotating arm, 212. First limiting slide groove, 213. First limiting frame, 214. Locking block, 215. Second limiting slide groove, 216. Limiting slider, 3. Armrest adjustment mechanism, 31. Armrest fixing frame, 32. Third rotating arm, 33. Second limiting frame, 34. Armrest sliding frame, 35. Third limiting slide groove, 36. Armrest, 37. Adjustment knob, 4. Gas spring, 5. Second mounting bracket, 6. Support plate, 7. Backrest mounting bracket, 8. Backrest, 9. Seat silicone pad, 10. Backrest silicone pad, 11. Support, 12. Adjustment rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This embodiment provides a technical solution: a lounge chair with a caster locking mechanism, including a mounting frame 1, a caster locking mechanism 2, and an armrest adjustment mechanism 3;

[0025] Mounting bracket 1: A gas spring 4 is provided in the middle of its upper end face. A second mounting bracket 5 is provided on the telescopic end face of the gas spring 4. A support plate 6 is installed on the upper end face of the second mounting bracket 5 by bolts. A backrest mounting bracket 7 is installed on the rear side of the lower end face of the support plate 6 by bolts. A backrest 8 is installed on the front side of the upper end of the backrest mounting bracket 7 by bolts. A seat silicone pad 9 is installed on the upper end face of the support plate 6 by bolts. A backrest silicone pad 10 is installed on the front side of the backrest 8 by bolts. It also includes a support 11. The support 11 is symmetrically arranged on the right side of the middle of the lower end face of the support plate 6. An adjusting rod 12 is rotatably connected between the opposite inner sides of the two supports 11.

[0026] Caster locking mechanism 2 includes a positioning mounting plate 201, a rotating seat 202, a first mounting bracket 203, and casters 204. The positioning mounting plates 201 are symmetrically mounted on the front and rear sides of the lower end face of the mounting bracket 1 by bolts. The lower end face of each of the four positioning mounting plates 201 is rotatably connected to the first mounting bracket 203 via the rotating seat 202. The left and right inner walls of each first mounting bracket 203 are rotatably connected to the casters 204. The upper end face of the two front first mounting brackets 203 and the upper end face of the two rear first mounting brackets 203 are provided with clearance grooves. The caster locking mechanism 2 also includes a first support 205, a rotating shaft 206, a lever 207, a torsion spring 208, a first rotating arm 209, and a pedal 2. 10. First supports 205 are symmetrically arranged on the front upper surfaces of two first mounting brackets 203 on the same front side and on the rear upper surfaces of two first mounting brackets 203 on the same rear side. A rotating shaft 206 is rotatably connected between the relative inner surfaces of the two first supports 205 on the same first mounting bracket 203. A lever 207 is provided on the lower side of the outer surface of the middle portion of each rotating shaft 206. A torsion spring 208 is provided between the relative inner surfaces of the two first supports 205 on the same first mounting bracket 203 and the adjacent end faces of the lever 207. The torsion springs 208 are fixedly sleeved on the outer surfaces of adjacent rotating shafts 206. First rotating arms 209 are respectively arranged on the left and right end faces of each rotating shaft 206. A pedal 210 is provided between the opposite inner surfaces of the rotating arm 209. The caster locking mechanism 2 also includes a locking block 214, a second limiting groove 215, and a limiting slider 216. The second limiting grooves 215 are symmetrically opened on the front side of the upper end face of the two first mounting brackets 203 on the same front side and the rear side of the upper end face of the two first mounting brackets 203 on the same rear side. The left and right inner surfaces of the two second limiting grooves 215 on the same first mounting bracket 203 and the left and right inner surfaces of the clearance groove are slidably connected to the limiting sliders 216. The lower end faces of the four limiting sliders 216 on the same first mounting bracket 203 are fixedly connected to the locking block 214. The caster locking mechanism 2 also includes a second rotating arm 211 and a first limiting groove 212. The first limiting bracket 213 and the second rotating arm 211 are rotatably connected to the middle of the front face of the upper end face of the two locking blocks 214 on the same front side and the middle of the rear face of the upper end face of the two locking blocks 214 on the same rear side, respectively. The first limiting bracket 213 is rotatably connected between the left and right sides of the two second rotating arms 211 located on the same locking block 214. The first limiting groove 212 is respectively opened in the middle of the front end face of each second rotating arm 211. The first limiting groove 212 on each second rotating arm 211 is slidably connected to the front and rear end sliding columns of the adjacent paddles 207. When the user needs to lock the casters, the user can lightly or heavily step on the pedal 210 as needed. When the user only needs to fix the lounge chair in place, the user lightly steps on the pedal 210.The pedal 210 rotates downwards around the pivot 206. This rotation of the pedal 210 drives the pivot 206 to rotate via the first rotating arm 209. The pivot 206 then drives the paddle 207 to rotate. Under the rotational limitation of the first limiting bracket 213, the paddle 207 drives the second rotating arm 211 to rotate. Simultaneously, the sliding pin of the paddle 207 slides against the first limiting groove 212 of the second rotating arm 211. Under the limitation of the limiting slider 216, the second rotating arm 211 drives the locking block 214 closer to the caster 204, thereby locking the caster 204 in the groove on the lower side of the locking block 214. When the user needs to move the caster again for leisure... When the chair is in use, simply push the chair firmly. The torsion spring 208 will then return the chair to its original position, causing the locking block 214 to slide away from the caster 204, thus unlocking the caster 204. When the chair needs to be moved or moved and the caster 204 needs to be locked in place, the user can press down on the pedal 210. This will move the locking block 214 closer to the caster 204, allowing the lower groove of the locking block 214 to pass over the caster 204, thus locking the caster 204. To unlock the caster 204 again, simply lift the pedal 210 upwards.

[0027] Handrail adjustment mechanism 3: It is symmetrically arranged on the lower end face of the mounting frame 1. The handrail adjustment mechanism 3 includes a handrail fixing frame 31, a third rotating arm 32, a second limiting frame 33, a handrail sliding frame 34, a third limiting slide groove 35, and a handrail 36. The handrail fixing frame 31 is symmetrically arranged on the lower end face of the support plate 6. The front and rear ends of the upper end faces of the two handrail fixing frames 31, which are opposite to the outer ends, are rotatably connected to the third rotating arm 32 through the second support. The two third rotating arms 32 located on the same handrail fixing frame 31 are rotatably connected between the middle of the outer side faces. A second limiting frame 33 is provided. A handrail sliding frame 34 is rotatably connected between the upper ends of two third rotating arms 32 located on the same handrail fixing frame 31. Each of the left and right ends of the two handrail sliding frames 34 has a third limiting groove 35. A handrail 36 is slidably connected between the inner surfaces of the two third limiting grooves 35 on the same handrail sliding frame 34. The handrail adjustment mechanism 3 also includes an adjustment knob 37, which is threadedly connected to the middle of the lower end face of the two handrail sliding frames 34 and the middle of the opposite outer surfaces of the two second supports located on the front side. When a person sits... On the silicone seat cushion, reach up and pull the adjustment lever 12 upwards. The distal end of the adjustment lever 12 moves upwards, causing the ball at the inner end of the adjustment lever 12 to move downwards, pressing down the actuating rod of the gas spring 4. The downward movement of the actuating rod opens the valve body, connecting the air chambers on both sides of the piston head. Under the pressure of the person on the lounge chair, the telescopic end of the gas spring 4 is compressed. Then, the person releases the adjustment lever 12, and the actuating rod returns to its original position, thus achieving height adjustment of the lounge chair. Then, the person loosens the adjustment knob 37 on the outer side of the second support. After the person rotates the third rotating arm 32 to the appropriate position, the outer side of the second support... Tighten the adjustment knob 37, then loosen the adjustment knob 37 on the lower side of the armrest sliding frame 34, slide the armrest 36 to the appropriate position, and then tighten the adjustment knob 37 on the lower side of the armrest sliding frame 34 to adjust the position of the armrest. This lounge chair with a caster locking mechanism has a groove on the lower side of the locking block, which allows the user to lightly or heavily press the pedal to select the locking force of the casters according to their needs. Lightly pressing facilitates reset, while heavy pressing facilitates locking, effectively solving the problem that it is inconvenient to cancel the locking after locking in existing caster locking mechanisms.

[0028] The working principle of the lounge chair with caster locking mechanism provided by this utility model is as follows: When a person sits on the silicone seat cushion, they reach out and push the adjusting rod 12 upwards. The upward movement of the distal end of the adjusting rod 12 causes the ball at the inner end of the adjusting rod 12 to move downwards, pressing down the starting rod of the gas spring 4. The downward movement of the starting rod causes the valve body to open, connecting the air chambers on both sides of the piston head. Under the pressure of the person on the lounge chair, the telescopic end of the gas spring 4 is compressed. Then, the person releases the adjusting rod 12, and the starting rod returns to its original position, thus realizing the height adjustment of the lounge chair. Then, the person loosens the adjusting knob 37 on the outside of the second support. After the person rotates the third rotating arm 32 to the appropriate position, the adjusting knob 37 on the outside of the second support is then loosened. 7. Tighten the knob. Then, loosen the adjustment knob 37 on the lower side of the armrest sliding frame 34. After sliding the armrest 36 to the appropriate position, tighten the adjustment knob 37 on the lower side of the armrest sliding frame 34 to adjust the position of the armrest. When the casters need to be locked, the user can lightly or heavily press the pedal 210 as needed. When the user only needs to fix the chair in place, lightly press the pedal 210. The pedal 210 rotates downward around the pivot 206. The rotation of the pedal 210 drives the pivot 206 to rotate through the first rotating arm 209. The rotation of the pivot 206 drives the paddle 207 to rotate. The paddle 207 rotates under the rotation limit of the first limit frame 213. The second rotating arm 211 rotates, and as it rotates, the sliding pin of the paddle 207 slides against the first limiting groove 212 of the second rotating arm 211. Under the limitation of the limiting slider 216, the second rotating arm 211 rotates, causing the locking block 214 to move closer to the caster 204, thereby locking the caster 204 in the groove on the lower side of the locking block 214. When the person needs to move the chair again, they only need to push the chair forcefully, and with the reset action of the torsion spring 208, the locking block 214 slides away from the caster 204, thus releasing the caster 204. When the person needs to move the chair or otherwise lock the caster 204, the person can... By pressing the pedal 210 hard, the locking block 214 is moved closer to the caster 204, and the groove on the lower side of the locking block 214 passes over the caster 204, so that the side of the locking block 214 away from the caster 204 is closer to the caster 204, thereby fixing and locking the caster 204. When it is necessary to unlock, the user can lift the pedal 210 upward to release the lock on the caster 204. This lounge chair with a caster locking mechanism, by opening a groove on the lower side of the locking block, allows the user to lightly or heavily press the pedal to select the locking force of the caster according to their needs. Light pressing facilitates reset, while heavy pressing facilitates locking, effectively solving the problem that it is inconvenient to unlock the existing caster locking mechanism after locking.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lounge chair with a caster locking mechanism, characterized in that: It includes a mounting bracket (1), a caster locking mechanism (2), and a handrail adjustment mechanism (3); Mounting bracket (1): A gas spring (4) is provided in the middle of its upper end face. A second mounting bracket (5) is provided on the telescopic end face of the gas spring (4). A support plate (6) is installed on the upper end face of the second mounting bracket (5) by bolts. A backrest mounting bracket (7) is installed on the rear side of the lower end face of the support plate (6) by bolts. A backrest (8) is installed on the front side of the upper end of the backrest mounting bracket (7) by bolts. A seat silicone pad (9) is installed on the upper end face of the support plate (6) by bolts. A backrest silicone pad (10) is installed on the front side of the backrest (8) by bolts. Caster locking mechanism (2): It includes a positioning mounting plate (201), a rotating seat (202), a first mounting bracket (203) and a caster (204). The positioning mounting plate (201) is symmetrically mounted on the front and rear sides of the lower end face of the mounting bracket (1) by bolts. The middle of the lower end face of the four positioning mounting plates (201) is rotatably connected to the first mounting bracket (203) through the rotating seat (202). The left and right inner walls of each first mounting bracket (203) are rotatably connected to the caster (204). The middle of the front side of the upper end face of the two first mounting brackets (203) on the same front side and the middle of the rear side of the upper end face of the two first mounting brackets (203) on the same rear side are provided with clearance grooves. Handrail adjustment mechanism (3): It is symmetrically arranged on the lower end face of the mounting frame (1) in the middle.

2. The lounge chair with caster locking mechanism according to claim 1, characterized in that: The caster locking mechanism (2) further includes a first support (205), a pivot (206), a paddle (207), a torsion spring (208), a first rotating arm (209), and a pedal (210). The first supports (205) are symmetrically arranged on the front side of the upper end face of the two first mounting brackets (203) on the same front side and the rear side of the upper end face of the two first mounting brackets (203) on the same rear side. The two first supports (205) on the same first mounting bracket (203) are rotatably connected to the opposite inner surfaces of each other. A lever (207) is provided on the lower side of the outer side of the middle part of the shaft (206). A torsion spring (208) is provided between the opposite inner side of the two first supports (205) on the same first mounting bracket (203) and the adjacent end face of the lever (207). The torsion spring (208) is fixedly sleeved on the outer side of the adjacent shaft (206). The first rotating arm (209) is provided on the left and right end faces of each shaft (206). A pedal (210) is provided between the opposite inner sides of the two first rotating arms (209) on the same shaft (206).

3. The lounge chair with caster locking mechanism according to claim 2, characterized in that: The caster locking mechanism (2) further includes a locking block (214), a second limiting groove (215), and a limiting slider (216). The second limiting groove (215) is symmetrically opened on the front side of the upper end face of the two first mounting brackets (203) on the same front side and the rear side of the upper end face of the two first mounting brackets (203) on the same rear side. The left and right inner sides of the two second limiting grooves (215) on the same first mounting bracket (203) and the left and right inner sides of the clearance groove are slidably connected to the limiting slider (216). The lower end faces of the four limiting sliders (216) on the same first mounting bracket (203) are fixedly connected to the locking block (214).

4. The lounge chair with caster locking mechanism according to claim 3, characterized in that: The caster locking mechanism (2) further includes a second rotating arm (211), a first limiting groove (212), and a first limiting bracket (213). The second rotating arm (211) is rotatably connected to the middle of the front side of the upper end face of two locking blocks (214) on the same front side and the middle of the rear side of the upper end face of two locking blocks (214) on the same rear side. The first limiting bracket (213) is rotatably connected between the left and right sides of the two second rotating arms (211) on the same locking block (214). The first limiting groove (212) is opened in the middle of the front end face of each second rotating arm (211). The first limiting groove (212) on each second rotating arm (211) is slidably connected to the front and rear end sliding columns of the adjacent paddles (207).

5. The lounge chair with caster locking mechanism according to claim 1, characterized in that: The handrail adjustment mechanism (3) includes a handrail fixing frame (31), a third rotating arm (32), a second limiting frame (33), a handrail sliding frame (34), a third limiting slide groove (35), and a handrail (36). The handrail fixing frames (31) are symmetrically arranged on the lower end face of the support plate (6). The upper end faces of the two handrail fixing frames (31) are opposite to each other. The front and rear ends of the two handrail fixing frames (31) are rotatably connected to the third rotating arm (32) through the second support. The handrail fixing frames (31) are located on the same handrail fixing frame. A second limiting frame (33) is rotatably connected between the middle of the outer side of the two third rotating arms (32) on the same handrail fixing frame (31). A handrail sliding frame (34) is rotatably connected between the upper ends of the two third rotating arms (32) on the same handrail fixing frame (31). A third limiting groove (35) is provided at both the left and right ends of the two handrail sliding frames (34). A handrail (36) is slidably connected between the inner sides of the two third limiting grooves (35) on the same handrail sliding frame (34).

6. The lounge chair with caster locking mechanism according to claim 5, characterized in that: The handrail adjustment mechanism (3) also includes an adjustment knob (37), which is threadedly connected to the middle of the lower end face of the two handrail sliding frames (34) and the middle of the opposite outer side of the two second supports located on the front side.

7. The lounge chair with caster locking mechanism according to claim 1, characterized in that: It also includes supports (11), which are symmetrically arranged on the right side of the lower end face of the support plate (6), and an adjusting rod (12) is rotatably connected between the opposite inner sides of the two supports (11).

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