Sitting and reclining chair with multi-angle adjusting armrests

Abstract

The utility model discloses a sitting and reclining chair with multi-angle adjustable armrests, which comprises the armrests, a sitting module and a backrest module rotatably arranged at the rear end of the sitting module, an inner sleeve is arranged at the bottom end of the backrest module, an outer sleeve is arranged at the rear end of the sitting module, the inner sleeve is rotatably arranged in the outer sleeve, and each armrest comprises a swing arm and an armrest table. A sleeve part is arranged at the bottom end of the swing arm and arranged outside the outer sleeve in a sleeving mode, a first arc-shaped hole is formed in the outer sleeve, a second arc-shaped hole is formed in the inner sleeve, a connecting bolt is installed in the sleeve part and penetrates through the first arc-shaped hole and the second arc-shaped hole, the first arc-shaped hole is used for limiting the moving range of the connecting bolt, and the second arc-shaped hole is used for limiting the moving range of the connecting bolt. And the hole wall of one end of the second arc-shaped hole is a driving end and is used for driving the connecting bolt to rotate, so that when the chair state is switched to the deck chair state, the armrest table can swing backwards along with the sitting module, and the use experience is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sitting and lying chair technical field, concretely relates to a sitting and lying chair with multi-angle adjusting handrails. BACKGROUND

[0002] The sitting and lying chair is a chair capable of realizing sitting and lying, the sitting module is provided with a backrest module rotatably arranged at the rear end of the sitting module, and handrails are fixedly arranged at the left and right sides of the sitting module, when the backrest module is rotated backward to switch the chair from a sitting state to a lying state, the handrails cannot swing with the sitting module, so that the user cannot comfortably lean on the handrails when lying, and the handrails cannot swing to make way, so that the user can only walk out from the front of the chair when getting up and leaving the chair, and cannot directly walk out from the side of the chair, which is not convenient and fast, and a large space needs to be reserved in front of the chair, so that the space is large. SUMMARY

[0003] The utility model aims at providing a sitting and lying chair with multi-angle adjusting handrails to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a sitting and lying chair with multi-angle adjusting handrails, comprising a handrail, a sitting module and a backrest module rotatably arranged at the rear end of the sitting module, the bottom end of the backrest module is provided with an inner sleeve pipe, the rear end of the sitting module is provided with an outer sleeve pipe, the inner sleeve pipe is rotatably arranged in the outer sleeve pipe, the handrail comprises an arm and a handrail table arranged at the top end of the arm, the bottom end of the arm is provided with a sleeve part, the sleeve part is sleeved on the outside of the outer sleeve pipe to realize relative rotation, at least one pair of first arc-shaped holes is arranged on the outer sleeve pipe in a central symmetry mode, at least one pair of second arc-shaped holes is arranged on the inner sleeve pipe in a central symmetry mode, a connecting bolt is installed in the sleeve part, the connecting bolt penetrates the first arc-shaped hole and the second arc-shaped hole, the first arc-shaped hole is used for limiting the movement range of the connecting bolt, thereby limiting the swing angle range of the handrail table of the handrail, one end hole wall of the second arc-shaped hole is a driving end, which is used for driving the connecting bolt to rotate, thereby enabling the handrail table to swing backward with the sitting module when switching from a sitting state to a lying state.

[0005] Preferably, the angle adjustment range between the handrail table and the horizontal plane of the sitting and lying chair in the lying state is not more than the angle adjustment range between the handrail table and the horizontal plane of the sitting and lying chair in the sitting state.

[0006] Preferably, the maximum angle between the handrail table and the horizontal plane of the sitting and lying chair in the lying state is equal to the maximum angle between the handrail table and the horizontal plane of the sitting and lying chair in the sitting state, and the minimum angle between the handrail table and the horizontal plane of the sitting and lying chair in the lying state is greater than the minimum angle between the handrail table and the horizontal plane of the sitting and lying chair in the sitting state.

[0007] Preferably, the outer sleeve is two, two outer sleeves are arranged on the left and right sides of the rear end of the ride module respectively, and the two outer sleeves are coaxially sleeved on the left and right sides of the inner sleeve to realize relative rotation.

[0008] Preferably, each outer sleeve is provided with a pair of first arc-shaped holes which are centrally symmetric, the left and right sides of the inner sleeve are respectively provided with a pair of second arc-shaped holes which are centrally symmetric, and the first arc-shaped holes and the second arc-shaped holes on the same side are coaxially arranged, and the central angle of the second arc-shaped hole is larger than that of the first arc-shaped hole.

[0009] Preferably, the two first arc-shaped holes which are centrally symmetric are respectively located on the upper and lower sides of the outer sleeve, and the two second arc-shaped holes which are centrally symmetric are respectively located on the upper and lower sides of the inner sleeve, and the front end hole wall of the upper second arc-shaped hole and the rear end hole wall of the lower second arc-shaped hole are both driving ends.

[0010] Preferably, the outer sleeve and the inner sleeve are metal sleeves, and a bushing is arranged between the outer sleeve and the inner sleeve, the bushing being a plastic bushing fixedly connected with the outer sleeve.

[0011] Preferably, it further comprises a decorative sleeve plug, the sleeve part has a through hole penetrating left and right, the connecting bolt is a bolt, the decorative sleeve plug comprises a plug cover and a pipe body arranged on the inner side of the plug cover, the pipe body is provided with a clearance hole for the bolt to pass through, the pipe body is installed in the inner sleeve, and the plug cover is in sealing cooperation with the hole of the outer side of the sleeve part.

[0012] Preferably, it further comprises a lifting support module, the lifting support module comprises a support foot and an outer support pipe arranged on the support foot, the inner part of the outer support pipe is provided with a screw rod mechanism, the ride module comprises a seat surface frame and a cushion which is detachably installed on the seat surface frame, the bottom of the seat surface frame is provided with an inner support pipe, the inner support pipe is inserted into the inner part of the outer support pipe on the upper side, the inner part of the inner support pipe is fixedly installed with a sliding block, and the sliding block is slidingly arranged on the screw rod mechanism.

[0013] Preferably, the screw rod mechanism comprises a fixed seat, a screw rod, and a first conical gear and a second conical gear which are vertically transmissionally matched and installed in the fixed seat, the first conical gear is in external communication, the second conical gear is fixedly connected with the bottom end of the screw rod, the sliding block is slidingly arranged on the outer part of the screw rod, and the screw rod comprises a metal rod core and a plastic threaded sleeve which is wrapped on the outer part of the metal rod core.

[0014] Preferably, it further comprises a foot pedal module which is slidingly and telescopically arranged below the ride module, the lower side of the seat surface frame is provided with a guide pipe, the foot pedal module comprises two foot pedals, a longitudinal pipe and a transverse pipe which are mutually T-shaped, the longitudinal pipe is slidingly arranged in the guide pipe, and the two foot pedals are swingingly arranged on the left and right sides of the transverse pipe.

[0015] The utility model has the following beneficial effects:

[0016] (1) When the ride module rotates backward to switch the chair from the sitting state to the lying state, the driving end drives the connecting bolt to rotate, and then the armrest swings backward, so that the armrest table is adjusted from the horizontal state to the inclined state, so that the user's hands can naturally and comfortably lean on the armrest when lying down. This setting can realize the backward swing of the armrest to the most comfortable and appropriate angle position following the ride module, without the need for the user to frequently adjust, with better use experience and more humanization. In addition, whether in the sitting state or the lying state, the armrest table only needs to be swung backward to the maximum angle, so that the left and right sides of the ride module can be left with a larger space, so that the user can directly and quickly enter and exit from the side (left or right) of the chair in the case of entering and exiting (or emergency), which is more convenient and fast. In addition, the front of the chair does not need to reserve a larger activity space, thereby reducing the occupied space.

[0017] (2) The screw rod comprises a metal rod core and a plastic threaded sleeve wrapped outside the metal rod core. This setting makes the screw rod lighter and has lower economic cost, so that the chair is more portable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a top side view of an embodiment of the present application.

[0019] Figure 2 is a bottom side view of an embodiment of the present application.

[0020] Figure 3 is a right side view of an embodiment of the present application.

[0021] Figure 4 is a front view of an embodiment of the present application.

[0022] Figure 5 is a rear view of an embodiment of the present application.

[0023] Figure 6 is a longitudinal sectional view of an embodiment of the present application at one position of the connecting bolt.

[0024] Figure 7 is a longitudinal sectional view of an embodiment of the present application at another position of the connecting bolt.

[0025] Figure 8 is Figure 5 is a sectional view at A-A.

[0026] Figure 9 is a structural schematic view of a foot pedal module of an embodiment of the present application.

[0027] Figure 10is the position schematic view of the first arc-shaped hole, the second arc-shaped hole and the connecting bolt when the embodiment of the utility model is in the chair state and the angle between the handrail table and the horizontal plane is 0°.

[0028] Figure 11 is the position schematic view of the first arc-shaped hole, the second arc-shaped hole and the connecting bolt when the embodiment of the utility model is in the chair state and the angle between the handrail table and the horizontal plane is 0°.

[0029] Figure 12 is the position schematic view of the first arc-shaped hole, the second arc-shaped hole and the connecting bolt when the embodiment of the utility model is in the chair state and the angle between the handrail table and the horizontal plane is 0°.

[0030] Figure 13 is the position schematic view of the first arc-shaped hole, the second arc-shaped hole and the connecting bolt when the embodiment of the utility model is in the chair state and the angle between the handrail table and the horizontal plane is 0°.

[0031] Fig. 1 handrail table, 2 swing arm, 3 sleeve part, 4 seat module, 41 outer sleeve, 42 chair frame, 43 inner support tube, 44 seat cushion, 45 guide tube, 5 backrest module, 51 inner sleeve, 52 backrest tube, 53 back cushion, 54 waist support, 55 headrest, 6 first arc-shaped hole, 7 second arc-shaped hole, 71 drive end, 8 connecting bolt, 9 hydraulic telescopic rod, 10 bushing, 101 arc-shaped clearance hole, 11 decorative sleeve plug, 111 plug cover, 112 tube body, 113 through hole, 14 support foot, 15 outer support tube, 16 fixed seat, 17 screw rod, 18 first bevel gear, 19 second bevel gear, 20 sliding block, 21 longitudinal tube, 22 transverse tube, 23 foot pedal. DETAILED DESCRIPTION

[0032] To further illustrate the embodiments, the utility model provides with the attached drawings. These drawings are part of the utility model disclosure, which mainly serves to illustrate the embodiments, and can be combined with the relevant description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0033] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] Referring to Figures 1-13 As shown in the drawings, as an embodiment of the utility model, a sitting and lying chair with multi-angle adjusting handrails is provided, which comprises a handrail, a sitting module 4 and a backrest module 5 rotatably arranged at the rear end of the sitting module 4, the bottom end of the backrest module 5 is provided with an inner sleeve 51, the rear end of the sitting module 4 is provided with an outer sleeve 41, the inner sleeve 51 is rotatably arranged in the outer sleeve 41, the handrail comprises an arm 2 and a handrail table 1 arranged at the top end of the arm 2, the bottom end of the arm 2 is provided with a sleeve part 3, the sleeve part 3 is sleeved outside the outer sleeve 41 to realize relative rotation, at least one pair of first arc-shaped holes 6 which are centrally symmetrical are arranged on the outer sleeve 41, at least one pair of second arc-shaped holes 7 which are centrally symmetrical are arranged on the inner sleeve 51, a connecting bolt 8 is installed in the sleeve part 3, the connecting bolt 8 penetrates the first arc-shaped hole 6 and the second arc-shaped hole 7, the first arc-shaped hole 6 is used for limiting the movement range of the connecting bolt 8, thereby limiting the swing angle range of the handrail table 1 of the handrail, one end hole wall of the second arc-shaped hole 7 is a driving end 71, which is used for driving the connecting bolt 8 to rotate, thereby enabling the handrail table 1 to swing backward with the sitting module 4 when switching from the chair state to the lying chair state. Wherein, the angle adjusting range between the handrail table of the sitting and lying chair in the lying chair state and the horizontal plane is not more than the angle adjusting range between the handrail table of the sitting and lying chair in the chair state and the horizontal plane. Further, the maximum angle between the handrail table of the sitting and lying chair in the lying chair state and the horizontal plane is equal to the maximum angle between the handrail table of the sitting and lying chair in the chair state and the horizontal plane, and the minimum angle between the handrail table of the sitting and lying chair in the lying chair state and the horizontal plane is greater than the minimum angle between the handrail table of the sitting and lying chair in the chair state and the horizontal plane.

[0036] The above technical solution, when the chair is in the chair state, the angle between the armrest table 1 of the armrest and the horizontal plane is adjusted in the range of 0-45°, and under normal circumstances, the angle between the armrest table 1 of the armrest and the horizontal plane is 0°, so that the user's hands can naturally and comfortably lean on the armrest when sitting, and when the chair is in the reclining state, the angle between the armrest table 1 of the armrest and the horizontal plane is adjusted in the range of 15-45°, that is, when the sitting module 4 rotates backward to switch the chair from the chair state to the reclining state, the driving end 71 drives the connecting bolt 8 to rotate 15°, and then the armrest swings backward by 15°, so that the angle between the armrest table 1 and the horizontal plane is adjusted from 0° to 15°, so that the user's hands can naturally and comfortably lean on the armrest when lying down. This setting can realize the backward swing of the armrest to the most comfortable and appropriate angle position following the sitting module 4, without the need for the user to frequently adjust, with better use experience and more humanization. In addition, whether in the chair state or the reclining state, the armrest table 1 of the armrest can swing backward to adjust the angle between it and the horizontal plane to a maximum of 45°, so that the left and right sides of the sitting module 4 have a larger space for giving way, and then the user can directly and quickly enter and exit from the side (left or right) of the chair in the case of entering and exiting (or emergency), which is more convenient and fast, and the front of the chair does not need to reserve a larger space for movement, thereby reducing the occupied space.

[0037] Of course, in other embodiments, the angle between the armrest table of the armrest and the horizontal plane can also be adjusted in other numerical ranges, such as when the chair is in the chair state, the angle between the armrest table of the armrest and the horizontal plane is adjusted in the range of 0-60°, and when the chair is in the reclining state, the angle between the armrest table of the armrest and the horizontal plane is adjusted in the range of 20-60°. The adjustment and setting can be adjusted according to the specific circumstances, which is not limited herein.

[0038] In this embodiment, the outer sleeve 41 is two, and the two outer sleeves 41 are respectively arranged on the left and right sides of the rear end of the sitting module 4, and the two outer sleeves 41 are coaxially sleeved on the left and right sides of the inner sleeve 51 to realize relative rotation, thereby ensuring the rotation adjustment and assembly support stability between the sitting module 4 and the backrest module 5.

[0039] In this embodiment, the hydraulic telescopic rod 9 is installed between the backrest module 5 and the sitting module 4, which is used to realize the controllable adjustment of the rotation reset between the backrest module 5 and the sitting module 4.

[0040] In the embodiment, each outer sleeve 41 is provided with a pair of first arc-shaped holes 6 which are centrally symmetric, the left and right sides of the inner sleeve 51 are respectively provided with a pair of second arc-shaped holes 7 which are centrally symmetric, the first arc-shaped holes 6 and the second arc-shaped holes 7 on the same side are coaxially arranged, and the central angle of the second arc-shaped hole 7 is greater than that of the first arc-shaped hole 6. Among them, the two first arc-shaped holes 6 which are centrally symmetric are respectively located on the upper and lower sides of the outer sleeve 41, and the two second arc-shaped holes 7 which are centrally symmetric are respectively located on the upper and lower sides of the inner sleeve 51. The front end hole wall of the upper second arc-shaped hole 7 and the rear end hole wall of the lower second arc-shaped hole 7 are both driving ends 71, when switching from a seat state to a reclining chair state, the driving end 71 drives the connecting bolt 8 to rotate 15°, and then makes the armrest swing back 15°, so that the angle between the armrest table 1 and the horizontal plane is adjusted from 0° to 15°, and the centrally symmetric structure makes the adjustment process of the armrest more precise, stable and controllable.

[0041] In the embodiment, the outer sleeve 41 and the inner sleeve 51 are metal sleeves, and a bushing 10 is arranged between the outer sleeve 41 and the inner sleeve 51. The bushing 10 is a plastic bushing fixedly connected with the outer sleeve 41, which plays a role of compensating gap and reducing noise, thereby avoiding contact between the outer sleeve 41 and the inner sleeve 51 and reducing noise generated by relative rotation. The bushing 10 is provided with a pair of centrally symmetric arc-shaped clearance holes 101, and the central angle of the arc-shaped clearance hole 101 is greater than that of the first arc-shaped hole 6, so as to avoid interference with the movement of the connecting bolt 8.

[0042] In the embodiment, a decorative sleeve plug 11 is further included, the sleeve portion 3 has a through hole 113 penetrating left and right, the connecting bolt 8 is a bolt, the diameter of the through hole 113 corresponds to the diameter of the bolt, the decorative sleeve plug 11 includes a plug cover 111 and a pipe body 112 arranged on the inner side of the plug cover 111, the pipe body 112 is provided with a clearance hole for the connecting bolt 8 to pass through, the pipe body 112 is installed in the inner sleeve 51, and the plug cover 111 is in sealing engagement with the hole of the outer side of the sleeve portion 3. This arrangement makes the assembly process of the armrest, the outer sleeve 41 and the inner sleeve 51 more convenient and fast, the swing adjustment process of the armrest more stable, and the whole more beautiful.

[0043] In the embodiment, a lifting support module is further included, the lifting support module includes a support foot 14 and an outer support tube 15 arranged on the support foot 14, the inner part of the outer support tube 15 is provided with a screw rod mechanism, the seating module 4 includes a seat surface frame 42 and a seat cushion 44 which can be detachably installed on the seat surface frame 42, the bottom of the seat surface frame 42 is provided with an inner support tube 43, the inner support tube 43 is inserted into the inner part of the outer support tube 15 on the upper side, the inner part of the inner support tube 43 is fixedly installed with a sliding block 20, and the sliding block 20 is arranged on the screw rod mechanism in up and down sliding mode, thereby realizing height adjustment of the seating module 4.

[0044] Specifically, the screw mechanism comprises a fixed seat 16, a screw rod 17, and a first bevel gear 18 and a second bevel gear 19 vertically and transmissionally matched and mounted in the fixed seat 16, the first bevel gear 18 is communicated with the outside, the second bevel gear 19 is fixedly connected with the bottom end of the screw rod 17, a sliding block 20 is arranged on the outside of the screw rod 17 and slides up and down, the first bevel gear 18 is rotated through an external hexagonal handle, thereby driving the second bevel gear 19 and the screw rod 17 to rotate, so that the sliding block 20 slides up or down along the screw rod 17, thereby realizing height adjustment of the riding module 4.

[0045] In the embodiment, the footrest module is also arranged below the riding module 4 and slides forward and backward, the lower side of the seat frame 42 is provided with a guide pipe 45, the footrest module comprises two footrests 23, a longitudinal pipe 21 and a transverse pipe 22 which are mutually T-shaped, the longitudinal pipe 21 is arranged in the guide pipe 45 and slides forward and backward, the guide pipe 45 is used for forward and backward guiding and limiting the longitudinal pipe 21 and has higher supporting strength and plays a certain protection role, preventing the longitudinal pipe 21 from colliding with the feet of the user when sliding forward and backward, the two footrests 23 are arranged on the left and right sides of the transverse pipe 22 and swing forward and backward, and the swing angle is 180°, that is, when the footrests 23 are needed to be used, the footrest module is slid forward out of the lower side of the riding module 4, then the footrests 23 swing forward by 180° and extend to the front of the transverse pipe 22, realizing lengthening of the stroke and facilitating adaptation to the leg length of different users, when the footrests 23 are needed to be stored, the footrests 23 swing backward by 180° and are stored in the rear of the transverse pipe 22, then the footrest module is slid backward into the lower side of the riding module 4 and is hidden, and the overall occupied space is smaller.

[0046] In the embodiment, the backrest module 5 comprises a backrest pipe 52 arranged on the upper side of the inner sleeve pipe 51, the backrest pipe 52 is provided with a height-adjustable back cushion 53, a waist support 54 and a headrest 55, and the headrest 55 and the waist support 54 are respectively located on the upper and lower sides of the back cushion 53, so that different users can adaptively adjust the height of the back cushion 53, the waist support 54 and the headrest 55 according to the height and body shape, the adaptation is better, the comfort of riding is ensured, so that the students can keep correct and healthy riding postures and ensure the healthy development of the body, and when the backrest module 5 is stored, the occupied space is also reduced.

[0047] Although the utility model is specifically shown and introduced in combination with the preferred embodiment, those skilled in the art should understand that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all fall within the protection scope of the utility model.

Claims

1. A chair recliner having a multi-angle adjustable armrest, characterized by: The armrest includes an arm and an armrest table arranged at the top end of the arm, the bottom end of the arm is provided with a sleeve part, the sleeve part is sleeved outside the outer sleeve to realize relative rotation, the outer sleeve is provided with at least a pair of first arc-shaped holes which are centrally symmetric, the inner sleeve is provided with at least a pair of second arc-shaped holes which are centrally symmetric, the sleeve part is provided with a connecting bolt, the connecting bolt is arranged through the first arc-shaped hole and the second arc-shaped hole, the first arc-shaped hole is used for limiting the movement range of the connecting bolt, thereby limiting the swing angle range of the armrest table of the armrest, one end hole wall of the second arc-shaped hole is a driving end, which is used for driving the connecting bolt to rotate, thereby enabling the armrest table to swing backward with the seat module when switching from the chair state to the recliner state.

2. Recliner chair with multi-angle adjustment armrest according to claim 1, characterized in that: The angle adjustment range between the armrest table of the chair-recliner in the recliner state and the horizontal plane is not more than the angle adjustment range between the armrest table of the chair-recliner in the chair state and the horizontal plane.

3. The reclining chair having multi-angle adjustment armrest according to claim 1, characterized in that: The maximum angle between the armrest table of the chair-recliner in the recliner state and the horizontal plane is equal to the maximum angle between the armrest table of the chair-recliner in the chair state and the horizontal plane, and the minimum angle between the armrest table of the chair-recliner in the recliner state and the horizontal plane is greater than the minimum angle between the armrest table of the chair-recliner in the chair state and the horizontal plane.

4. The reclining chair having multi-angle adjustment armrest according to claim 1, characterized in that: The outer sleeve is two, the two outer sleeves are arranged on the left and right sides of the rear end of the seat module, and the two outer sleeves are coaxially sleeved on the left and right sides of the inner sleeve to realize relative rotation.

5. The chair recliner with multi-angle adjustment armrest according to claim 4, characterized in that: Each outer sleeve is provided with a pair of first arc-shaped holes which are centrally symmetric, the left and right sides of the inner sleeve are respectively provided with a pair of second arc-shaped holes which are centrally symmetric, and the first arc-shaped holes and the second arc-shaped holes on the same side are coaxially arranged, and the central angle of the second arc-shaped hole is greater than the central angle of the first arc-shaped hole.

6. Recliner chair with multi-angle adjustment armrest according to claim 5, characterized in that: The two first arc-shaped holes which are centrally symmetric are respectively located on the upper and lower sides of the outer sleeve, and the two second arc-shaped holes which are centrally symmetric are respectively located on the upper and lower sides of the inner sleeve, the front end hole wall of the upper second arc-shaped hole and the rear end hole wall of the lower second arc-shaped hole are driving ends.

7. The reclining chair having multi-angle adjustment armrest according to claim 1, characterized in that: The outer sleeve and the inner sleeve are metal sleeves, and a bushing is arranged between the outer sleeve and the inner sleeve, the bushing is a plastic bushing fixedly connected with the outer sleeve.

8. The reclining chair having multi-angle adjustment armrest according to claim 1, characterized in that: It also includes a decorative sleeve plug, the sleeve part has a through hole penetrating left and right, the connecting bolt is a bolt, the decorative sleeve plug includes a plug cover and a pipe body arranged on the inner side of the plug cover, the pipe body is provided with a clearance hole for the bolt to pass through, the pipe body is installed in the inner sleeve, and the plug cover is in sealing cooperation with the hole of the outer side of the sleeve part.

9. The reclining chair having multi-angle adjustment armrest according to claim 1, characterized in that: It also includes a lifting support module, the lifting support module includes a support foot and an outer support pipe arranged on the support foot, the inner part of the outer support pipe is provided with a screw rod mechanism, the seat module includes a seat surface frame and a seat cushion detachably installed on the seat surface frame, the bottom of the seat surface frame is provided with an inner support pipe, the inner support pipe is inserted into the inner part of the outer support pipe on the upper side, the inner part of the inner support pipe is fixedly installed with a sliding block, and the sliding block is arranged on the screw rod mechanism in an up-down sliding mode.

10. The chair recliner with multi-angle adjustment armrest according to claim 9, characterized in that: The screw mechanism comprises a fixed seat, a screw rod, and a first and a second conical gear vertically and in transmission cooperation in the fixed seat, the first conical gear being in external communication, the second conical gear being fixedly connected with the bottom end of the screw rod, the sliding block being arranged outside the screw rod in up-and-down sliding mode, and the screw rod comprising a metal rod core and a plastic threaded sleeve wrapped outside the metal rod core.

11. The reclining chair having multi-angle adjustment armrest according to claim 9, characterized in that: The footboard module is further arranged below the riding module in front-and-back sliding and telescopic mode, the lower side of the seat frame is provided with a guide pipe, the footboard module comprises two footboards, a longitudinal pipe and a transverse pipe in T-shaped mutual arrangement, the longitudinal pipe is arranged in the guide pipe in front-and-back sliding mode, and the two footboards are arranged on the left and right sides of the transverse pipe in front-and-back swinging mode.

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