Beach chair and stepless adjusting mechanism thereof
By employing a stepless adjustment mechanism on the beach chair, and using a drive unit to drive the toothed buckle to move on the rack, the backrest angle can be steplessly adjusted. This solves the problem of fixed backrest adjustment positions and inconvenient operation of existing beach chairs, and provides a simple, convenient, and multi-angle user experience.
Patent Information
- Application Number
- CN202520233637.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing beach chairs only have a few fixed backrest adjustment positions, which cannot meet users' needs for multi-angle use. In addition, the existing stepless adjustment mechanism is complex in structure and inconvenient to operate.
The stepless adjustment mechanism includes an armrest tube, a sliding member, a first rack, a toothed buckle, and a drive unit. The drive unit drives the toothed buckle to move on the first rack, so that the protruding teeth of the toothed buckle lock into the tooth groove, restricting the movement of the sliding member on the armrest tube and realizing stepless adjustment of the backrest angle.
It achieves stepless adjustment of the backrest angle, has a simple structure, is easy to operate, and meets users' needs for multi-angle use.
Smart Images
Figure CN223715308U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to beach chair technical field, especially to a beach chair and its stepless adjusting mechanism. BACKGROUND
[0002] The beach chair on the market generally has foldable structure, and realizes the support to the user's body by cooperating with the chair cloth extended from the upper end of the backrest pipe to the front end of the seat pipe.
[0003] At present, the backrest adjustment of part beach chair only has several fixed gears, and cannot satisfy the use demand of multi-angle of the user.
[0004] In addition, part beach chair adopts the stepless adjusting mechanism of utility model patent CN222264826U to realize the backrest adjustment of multi-gear or stepless gear, but the structure of the stepless adjusting mechanism is relatively complex, and the operation of gear locking is also relatively inconvenient. UTILITY MODEL CONTENTS
[0005] Therefore, the utility model provides a beach chair and its stepless adjusting mechanism to solve the above problems, which can realize the stepless adjustment of backrest angle.
[0006] To achieve the above purpose, the utility model provides the technical scheme as follows:
[0007] The utility model provides a stepless adjusting mechanism, including handrail pipe, sliding piece, first rack fixed in the handrail pipe and the tooth buckle and drive unit set on the sliding piece, the sliding piece can be assembled in the handrail pipe, and the drive unit is used for driving the tooth buckle to the first rack movement, and the convex tooth of the tooth buckle is locked in the tooth groove of the first rack, to limit the sliding piece moves on the handrail pipe, and then forms the stepless gear adjustment setting.
[0008] Further, the drive unit includes a rotating handle and a rotating gear, the rotating gear is rotatably assembled in the sliding piece, and the rotating handle is fixedly connected to the rotating gear, the tooth buckle has a second rack matched with the rotating gear, and the rotating gear is engaged with the second rack, the rotating handle drives the rotating gear to rotate and drives the second rack to rise and fall, so as to drive the tooth buckle to rise and fall, and then realize the switching of the convex tooth of the tooth buckle between the position of clamping and away from the tooth groove of the first rack, the tooth buckle is provided with a let go groove for letting go the movement track of the rotating gear.
[0009] Further, the driving unit comprises a rotating handle, a rotating member and a movable member, the rotating member is assembled to the rotating handle; the clasp is provided with a guide groove, the guide groove comprises a transverse groove and a longitudinal groove which are connected and arranged in upper and lower positions, the movable member is movably arranged in the guide groove and the rotating member; the rotating handle drives the rotating member to rotate and drives the movable member to slide between the transverse groove and the longitudinal groove, so as to drive the clasp to rise and fall, and then realize the switching of the convex teeth of the clasp between the position of clamping and the position of being away from the tooth groove of the first rack.
[0010] Further, the clasp has two spaced apart protruding parts, and the two protruding parts are provided with the guide groove, and the rotating member is rotatably arranged between the two protruding parts.
[0011] Further, the rotating member is provided with a mounting hole, and the rotating handle is provided with a mounting portion matched with the mounting hole, the mounting portion is arranged in the mounting hole, so that the rotating member and the rotating handle are synchronously arranged.
[0012] Further, the elastic member is further arranged, and the elastic member is fixed to the sliding member; the elastic part of the elastic member is abutted to the tooth surface of the first rack, so as to dampen the movement of the sliding member on the armrest pipe.
[0013] Further, the elastic member has a suspended elastic sheet part, the elastic sheet part has a protrusion protruding towards the first rack, and the protrusion is elastically abutted to the tooth surface of the first rack; the elastic sheet part is the elastic part.
[0014] The utility model provides a kind of beach chair, including seat pipe, backrest pipe, the foot pipe assembly for supporting and above-mentioned stepless adjustment mechanism;The foot pipe assembly includes front foot pipe and rear foot pipe, the rear foot pipe is rotatably connected to the front foot pipe, and the front foot pipe is rotatably connected to the sliding member;The front foot pipe and the rear foot pipe are rotatably connected to the seat pipe respectively, and the backrest pipe is rotatably connected to the seat pipe;The sliding member is slidably sleeved on the armrest pipe;Chair cloth is sleeved on the seat pipe and the backrest pipe.
[0015] Further, the front foot pipe and the seat pipe are provided with hole position offset sleeve, the hole position offset sleeve is fixedly sleeved on the seat pipe, and the front foot pipe is hinged to the end of the hole position offset sleeve away from the seat pipe;The hole position offset sleeve is used for the seat pipe after folding respectively with the front foot pipe and the rear foot pipe parallel.
[0016] Further, the backrest pipe is provided with rotatable support foot pipe;The support foot pipe is used to support the backrest pipe when being unfolded.
[0017] The utility model discloses a technical scheme has following beneficial effect:
[0018] Through the slide piece can be slidably equipped in the handrail pipe, realize that the slide piece can freely move to any adjustment gear in the unlocking state, then through the drive unit drive the tooth buckle to the first rack movement, realize the convex tooth of the tooth buckle is locked in the tooth groove of the first rack, that is, limit the slide piece moves on the handrail pipe, further realize the stepless adjustment of backrest angle, and the utility model has simple structure, convenient operation. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 As shown in the beach chair schematic diagram of example one without chair cloth and unfolded as the seat state;
[0020] Figure 2 As shown in the exploded view of stepless adjustment mechanism in example one;
[0021] Figure 3 As shown in the schematic diagram of tooth buckle in example one;
[0022] Figure 4 As shown in the beach chair schematic diagram of example one with chair cloth and unfolded as the seat state;
[0023] Figure 5 As shown in the beach chair schematic diagram of example one with chair cloth and unfolded as the deck chair state;
[0024] Figure 6 As shown in the beach chair schematic diagram of example one with chair cloth and folded as the folding state;
[0025] Figure 7 As shown in the schematic diagram of hole position offset sleeve in example one;
[0026] Figure 8 As shown in the exploded view of stepless adjustment mechanism in example two;
[0027] Figure 9 As shown in the schematic diagram of tooth buckle in example two. DETAILED DESCRIPTION
[0028] To further illustrate the embodiments, the utility model provides with the drawing. These drawings are part of the utility model disclosure, mainly use to explain the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment. With reference to these contents, the person skilled in the art should understand other possible implementation ways and the advantages of the utility model. The components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.
[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0030] Example 1
[0031] Reference Figures 1 to 7 As shown, Embodiment 1 provides a beach chair, including as follows: Figure 1 The seat post 2, backrest post 3, footrest assembly for support, and stepless adjustment mechanism 1 are shown, and the seat post 2 and backrest post 3 are fitted with the following: Figure 4 The chair cloth shown is 7.
[0032] like Figure 1 and Figure 2 As shown, the stepless adjustment mechanism 1 includes a handrail tube 101, a sliding member 102, a first rack 103 fixed to the handrail tube 101, a toothed buckle 104 and a drive unit disposed on the sliding member 102. Of course, the handrail tube 101 is equipped with a handrail 8.
[0033] Specifically, the sliding component 102 is a sliding sleeve, such as... Figure 3 The toothed buckle 104 shown has a protruding tooth 114 at its top. The sliding member 102 is slidably sleeved on the handrail tube 101. The driving unit is used to drive the toothed buckle 104 to move toward the first rack 103 and lock the protruding tooth 114 of the toothed buckle 104 into the tooth groove of the first rack 103, so as to restrict the sliding member 102 from moving on the handrail tube 101, thereby forming a stepless gear adjustment setting.
[0034] In this embodiment, as Figure 1 The leg assembly shown includes a front leg tube 4 and a rear leg tube 5. Specifically, the seat tube 2, backrest tube 3, front leg tube 4, and rear leg tube 5 are all U-shaped, and the backrest tube 3 is equipped with a rotatable support leg tube 6. That is, the support leg tube 6 is assembled to the backrest tube 3 through a clamp connector 12. The support leg tube 6 is used to support the backrest tube 3 when it is unfolded. At the same time, the beach chair turns into... Figure 5 The structure of the recliner shown.
[0035] During assembly, the upper end of the rear leg tube 5 is rotatably connected to the upper part of the front leg tube 4 via the duckbill connector 10. The upper end of the front leg tube 4 is rotatably connected to the bottom of the sliding member 102. The middle parts of the front leg tube 4 and the rear leg tube 5 are rotatably connected to the front and rear parts of the seat tube 2, respectively. The lower end of the backrest tube 3 is rotatably connected to the rear end of the seat tube 2 via the U-shaped connector 11. The seat tube 2, backrest tube 3, front leg tube 4, rear leg tube 5, and the stepless adjustment mechanism 1 together constitute the folding structure of the beach chair, thus ensuring that the beach chair can be folded into the shape shown in the image. Figure 6 The folded state shown, or unfolded as shown Figure 4 The seat status shown or as Figure 5 The recliner is shown in the picture.
[0036] More specifically, such as Figure 2The shown driving unit comprises a rotating handle 105 and a rotating gear 106 fixedly connected with each other, and the rotating gear 106 is rotatably assembled in the sliding piece 102 through a rotating shaft mechanism.
[0037] The toothed buckle 104 is provided with a second gear rack 109 matched with the rotating gear 106, the rotating gear 106 is engaged with the second gear rack 109, and the toothed buckle 104 is provided with a clearance groove 110 for allowing the movement track of the rotating gear 106 to be allowed.
[0038] When the rotating handle 105 is rotated, the rotating handle 105 drives the rotating gear 106 to rotate, the rotating gear 106 drives the second gear rack 109 to ascend and descend, the second gear rack 109 synchronously drives the toothed buckle 104 to ascend and descend, so as to switch the teeth 114 of the toothed buckle 104 between the positions of clamping and away from the tooth grooves of the first gear rack 103, that is, switch the sliding piece 102 and the armrest tube 101 between the locked state and the unlocked state, and the first gear rack 103 has a plurality of continuously distributed tooth grooves, each tooth groove corresponds to an adjustment gear position, and one-to-one corresponds to a backrest angle, so that the stepless adjustment mechanism 1 of the embodiment has a plurality of gear positions for adjustment to form corresponding backrest angles.
[0039] By slidably assembling the sliding piece 102 in the armrest tube 101, the sliding piece 102 can be freely moved to any adjustment gear position in the unlocked state, and then the driving unit drives the toothed buckle 104 to move towards the first gear rack 103, so that the teeth 114 of the toothed buckle 104 are locked in the tooth grooves of the first gear rack 103, that is, the movement of the sliding piece 102 on the armrest tube 101 is limited, thereby realizing stepless adjustment of the backrest angle, and the stepless adjustment mechanism 1 of the embodiment has simple structure and convenient operation.
[0040] Of course, in other embodiments, the sliding piece 102 can also be slidably assembled in the armrest tube 101 through a guide rail and a guide groove structure.
[0041] In another preferred embodiment, as shown in Figure 1 and Figure 2 The stepless adjustment mechanism 1 further comprises an elastic member 111, such as an elastic member 111 made of plastic or metal material, the elastic member 111 is fixed to the sliding piece 102, and the elastic part of the elastic member 111 abuts against the tooth surface of the first gear rack 103 to form a damping arrangement for the movement of the sliding piece 102 on the armrest tube 101.
[0042] In the specific embodiment, the elastic member 111 has a suspended elastic piece part, and the elastic member 111 adopts a multi-fold line structure, the elastic piece part has a protrusion protruding towards the first gear rack 103, and the protrusion elastically abuts against the tooth surface of the first gear rack 103, at this time, the elastic piece part is the elastic part of the elastic member 111.
[0043] When the handle tube 101 and the sliding member 102 are in the unlocked state, the user needs to force to overcome the elastic limit of the elastic piece of the elastic member 111, make the elastic piece of the elastic member 111 elastically deform, force the protrusion of the elastic piece of the elastic member 111 to be out of the restriction of the tooth groove of the first rack 103, and then realize the movement of the sliding member 102 along the extension direction of the first rack 103, and the protrusion of the elastic member 111 slides on the tooth surface of the first rack 103. At this time, the user can feel obvious feedback when adjusting the gear.
[0044] Of course, in other embodiments, the elastic member 111 can also adopt the elastic sliding block structure composed of a spring and a sliding block to realize the damping effect.
[0045] In another preferred embodiment, as shown in Figure 1 and Figure 7 The hole position offset sleeve 9 is fixedly sleeved on the seat tube 2, and the front tube 4 is hinged to the lower end of the hole position offset sleeve 9 away from the seat tube 2, and cooperates with the hole position offset sleeve 9 to realize that the seat tube 2 is nearly parallel to the front tube 4 and the rear tube 5 after the beach chair is folded, so that the overall size of the beach chair after being folded can be reduced.
[0046] Embodiment two
[0047] Referring to Figure 8 and Figure 9 The embodiment two provides a beach chair, and the structure of the embodiment two is basically the same as that of the embodiment one, and the difference lies in that the driving unit of the embodiment includes a rotating handle 105', a rotating member 107 and a movable member 108, as shown in Figure 8 The rotating member 107 is assembled on the rotating handle 105', and the tooth buckle 104' is provided with a guide groove, as shown in Figure 9 The guide groove includes a transverse groove 112 and a longitudinal groove 113 which are connected and arranged in an upper and lower manner, and the movable member 108 is movably arranged in the guide groove and the rotating member 107.
[0048] The rotating handle 105' drives the rotating member 107 to rotate and drive the movable member 108 to slide between the transverse groove 112 and the longitudinal groove 113, so as to drive the protruding teeth 114 of the tooth buckle 104' to switch between the clamping position and the position away from the tooth groove of the first rack 103.
[0049] In the embodiment, the movable member 108 is a bolt or a pin, the tooth buckle 104' has two protruding parts 115 which are arranged at intervals, the two protruding parts 115 are provided with symmetrical guide grooves, and the rotating member 107 is rotatably inserted between the two protruding parts 115.
[0050] The rotating member 107 is provided with a square mounting hole, the rotating handle 105' is provided with a square mounting portion matched with the mounting hole, the mounting portion is inserted into the mounting hole, so that the rotating member 107 and the rotating handle 105' are synchronously rotated.
[0051] When the rotating handle 105' drives the rotating member 107 to rotate in the first direction, the rotating member 107 drives the movable member 108 to move to the transverse groove 112, the movable member 108 synchronously drives the tooth buckle 104' to move upward, until the protruding teeth 114 of the tooth buckle 104' are clamped in the tooth groove of the first gear rack 103, and the tooth buckle 104' is locked on the first gear rack 103, so that the sliding member 102 and the handrail pipe 101 are locked on each other.
[0052] When the rotating handle 105' drives the rotating member 107 to rotate in the second direction opposite to the first direction, the rotating member 107 drives the movable member 108 to move from the transverse groove 112 to the longitudinal groove 113, the movable member 108 synchronously drives the tooth buckle 104' to move downward, until the protruding teeth 114 of the tooth buckle 104' are away from the tooth groove of the first gear rack 103, and the tooth buckle 104' is unlocked from the first gear rack 103, so that the sliding member 102 and the handrail pipe 101 are unlocked from each other, that is, the sliding member 102 can freely move to any adjusting position in the unlocked state.
[0053] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art 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 the changes are within the protection scope of the utility model.
Claims
1. A continuously variable adjustment mechanism characterized by: The application relates to a stepless adjustment mechanism for a chair, which comprises a handrail tube, a sliding member, a first gear rack fixed to the handrail tube, and a toothed buckle and a driving unit arranged on the sliding member. The sliding member is slidably arranged on the handrail tube, and the driving unit is used for driving the toothed buckle to move towards the first gear rack and locking the convex teeth of the toothed buckle in the tooth groove of the first gear rack to limit the movement of the sliding member on the handrail tube, thereby forming a stepless gear adjustment setting.
2. Continuously variable adjustment mechanism according to claim 1, characterized in that The driving unit comprises a rotating handle and a rotating gear, the rotating gear is rotatably arranged on the sliding member, and the rotating handle is fixedly connected to the rotating gear; the toothed buckle has a second gear rack matched with the rotating gear, and the rotating gear is engaged with the second gear rack; the rotating handle drives the rotating gear to rotate and drives the second gear rack to ascend and descend, so as to drive the toothed buckle to ascend and descend, thereby switching the convex teeth of the toothed buckle between the position of clamping and the position of being away from the tooth groove of the first gear rack; the toothed buckle is provided with a clearance groove for allowing the movement track of the rotating gear.
3. The infinitely adjustable mechanism of claim 1, wherein: The driving unit comprises a rotating handle, a rotating member and a movable member, the rotating member is arranged on the rotating handle; the toothed buckle is provided with a guide groove, the guide groove comprises a transverse groove and a longitudinal groove which are connected and arranged in an upper and lower mode, the movable member is movably arranged in the guide groove and the rotating member; the rotating handle drives the rotating member to rotate and drives the movable member to slide between the transverse groove and the longitudinal groove, so as to drive the toothed buckle to ascend and descend, thereby switching the convex teeth of the toothed buckle between the position of clamping and the position of being away from the tooth groove of the first gear rack.
4. A continuously variable adjustment mechanism according to claim 3, characterised in that: The toothed buckle has two protruding parts arranged at intervals, and the two protruding parts are both provided with the guide groove, and the rotating member is rotatably arranged between the two protruding parts.
5. A continuously variable adjustment mechanism according to claim 4, characterised in that: The rotating member is provided with a mounting hole, the rotating handle is provided with a mounting part matched with the mounting hole, and the mounting part is arranged in the mounting hole, so that the rotating member and the rotating handle are synchronously rotated.
6. A continuously variable adjustment mechanism according to any one of claims 1 to 5, wherein: The stepless adjustment mechanism further comprises an elastic member, the elastic member is fixed to the sliding member, and the elastic part of the elastic member abuts against the tooth surface of the first gear rack to form a damping setting for the movement of the sliding member on the handrail tube.
7. A continuously variable adjustment mechanism according to claim 6, characterised in that: The elastic member has a spring part arranged in a suspended mode, the spring part has a protrusion protruding towards the first gear rack, and the protrusion elastically abuts against the tooth surface of the first gear rack; the spring part is the elastic part.
8. A beach chair characterized by: The stepless adjustment mechanism comprises a seat tube, a backrest tube, a foot tube assembly for support and the stepless adjustment mechanism according to any one of claims 1-7; the foot tube assembly comprises a front foot tube and a rear foot tube, the rear foot tube is rotatably connected to the front foot tube, and the front foot tube is rotatably connected to the sliding member; the front foot tube and the rear foot tube are rotatably connected to the seat tube respectively, and the backrest tube is rotatably connected to the seat tube; the sliding member is slidably sleeved on the handrail tube; the seat tube and the backrest tube are sleeved with chair cloth.
9. The beach chair of claim 8, wherein: The front leg tube and the seat tube are provided with a hole position offset sleeve, the hole position offset sleeve is fixedly sleeved on the seat tube, and the front leg tube is hingedly connected to one end of the hole position offset sleeve away from the seat tube; the hole position offset sleeve is parallel to the front leg tube and the rear leg tube when the seat tube is folded.
10. The beach chair of claim 8, wherein: The backrest tube is provided with a rotatable supporting leg tube; the supporting leg tube is used for supporting the backrest tube when the backrest tube is unfolded.