Folding chair frame

Abstract

The utility model particularly discloses a folding chair frame. The folding chair frame comprises a foldable chair frame, a telescopic rod is arranged on the chair frame, connecting blocks are arranged at the two ends of the telescopic rod, and adjusting rods and screwing blocks are arranged on the connecting blocks; the adjusting rod is provided with a clamping block, the screwing block is provided with a threaded through hole and is in threaded connection with the adjusting rod, and the screwing block can rotate to adjust the distance between the clamping block and the connecting block, so that the clamping block is matched with the connecting block to clamp the mounting platform. According to the technical scheme, the folding chair frame is provided, and by changing the mounting structure of the folding chair frame, the folding chair frame can adapt to and be mounted on mounting platforms with different sizes, so that the folding chair frame has better universality.

Description

Technical Field

[0001] The utility model relates to the technical field of folding chair frames, in particular to a folding chair frame. Background Art

[0002] The folding chair frame can be unfolded for use or folded for storage, and has a wide range of applications. It is usually made of materials such as metal, plastic or wood. Currently, the folding chair frame is also actually used in kayaks, small yachts or hovercrafts. The folding chair frame is used as a seat in the above application environment, and occupies less space after being folded and stored.

[0003] The above-mentioned folding chair frame used on kayaks, small yachts or hovercrafts needs to adapt to the installation conditions of different environments. Specifically, in boats or other environments where folding chair frames are used, the sizes of the installation platforms used to install the folding chair frames are different. Existing folding chair frames are difficult to adapt to the installation of installation platforms of different sizes. Utility Model Content

[0004] The purpose of the utility model is to provide a folding chair frame. By changing the installation structure of the folding chair frame, the folding chair frame can adapt to and be installed on installation platforms of different sizes, so that the folding chair frame has better versatility.

[0005] According to the purpose of the present application, a folding chair frame is provided, including a foldable chair frame; a telescopic rod is provided on the chair frame, connecting blocks are provided at both ends of the telescopic rod, and an adjusting rod and a twisting block are provided on the connecting block; a clamping block is provided on the adjusting rod, and the twisting block is provided with a threaded through hole and is threadedly connected to the adjusting rod, and the twisting block can be rotated to adjust the distance between the clamping block and the connecting block, so that the clamping block and the connecting block cooperate to clamp the mounting platform.

[0006] In some embodiments, at least two telescopic rods are provided on the chair frame.

[0007] In some embodiments, a first through hole is further provided at both ends of the telescopic rod; a second through hole matching the first through hole is provided on the connecting block; the connecting block is sleeved on the telescopic rod, the first through hole cooperates with the second through hole to form a limiting hole, and the adjusting rod cooperates with the limiting hole to limit the connecting block.

[0008] In some embodiments, a size of the first through hole is smaller than a size of the second through hole.

[0009] In some embodiments, the cross section of the twist block is spline-shaped.

[0010] In some embodiments, a rotating seat is further provided on the chair frame; the rotating seat includes two rotating disks, and the two rotating disks are rotatably connected; the two rotating disks are respectively connected to the chair frame and the mounting platform.

[0011] In some embodiments, the two rotating disks are respectively connected to the chair frame and the mounting platform using a bolt structure.

[0012] In some embodiments, the telescopic rod includes a sleeve and two support rods; the two support rods are slidably connected to the two ends of the sleeve, and both ends of the sleeve are provided with locking sleeves, and the locking sleeves are used to lock or unlock the support rods.

[0013] In some embodiments, the locking sleeve is provided with hand-tightening grooves.

[0014] In some embodiments, the chair frame includes a seat and a seat back; a transfer seat is provided between the seat and the seat back; the seat and the transfer seat are bolted together; and the seat back is rotatably connected to the transfer seat.

[0015] According to the technical solution of the utility model, the folding chair frame includes a foldable chair frame, and the chair frame is provided with a telescopic rod, and connecting blocks are provided at both ends of the telescopic rod, and the distance between the two connecting blocks can be adjusted by the telescopic rod, so that the chair frame can adapt to and be installed on installation platforms of different sizes, thereby increasing its versatility; an adjusting rod and a screw block are provided on the connecting block, and a clamping block is provided on the adjusting rod, and the screw block is provided with a threaded through hole and is threadedly connected to the adjusting rod, and the screw block and the adjusting rod are detachably connected and have a simple structure; the screw block can be rotated to adjust the distance between the clamping block and the connecting block, so that the clamping block and the connecting block cooperate to clamp the installation platform, and the chair frame can be detachably installed and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, properties and advantages of the present application will become more apparent through the following description in conjunction with the accompanying drawings and embodiments. It should be noted that the drawings are only examples and are not drawn in proportion, and should not be used to limit the scope of protection of the present application, wherein:

[0017] Figure 1 A three-dimensional diagram of the folding chair frame of the present application;

[0018] Figure 2 A three-dimensional diagram of the chair frame of the present application;

[0019] Figure 3 It is a three-dimensional assembly diagram of the telescopic rod structure of the present application;

[0020] Figure 4 A three-dimensional assembly diagram of the connection block structure of the present application;

[0021] Figure 5 A three-dimensional diagram of the support rod of the present application;

[0022] Figure 6 A three-dimensional diagram of the rotating seat of the present application;

[0023] Figure 7 A reference diagram showing the telescopic rod of the folding chair frame of the present application in a retracted state;

[0024] Figure 8 A reference diagram showing the telescopic rod of the folding chair frame of the present application in the unfolded state;

[0025] Fig. 9 A reference diagram of the folding chair frame of the present application in a folded state;

[0026] In the figure: 1, chair frame; 10, chair surface; 11, seat; 111, connecting rod; 12, chair back; 13, adapter; 2, telescopic rod; 21, sleeve; 211, locking sleeve; 2111, hand-tightening groove; 22, support rod; 3, connecting block; 31, sleeve hole; 4, adjustment rod; 41, clamping block; 5, screw block; 51, threaded through hole; 61, first through hole; 62, second through hole; 7, rotating seat; 71, rotating disk; 711, connecting part; 712, protruding part. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0028] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The phrase appearing in the specification does not necessarily refer to the same embodiment, nor is it limited to mutually exclusive independent or alternative embodiments. It should be understood by those skilled in the art that the embodiments of the present invention may be combined with other embodiments without structural conflicts.

[0029] In the description of this article, unless otherwise clearly specified and limited, the technical terms "installed", "connected", "connected" and the like should be understood in a broad sense, and can be movable connection, fixed connection or integrated. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0030] In the description of this document, terms indicating orientation or positional relationships, such as "up", "down", "left", "right", "height", "length", and "width", are intended to accurately describe the embodiments and simplify the description, but are not intended to limit the parts or structures involved to having a specific orientation, being installed or operated in a specific orientation.

[0031] See also Figure 1, shown is a three-dimensional diagram of the folding chair frame of the present application, the folding chair frame 1 includes a foldable chair frame 1, and the chair frame 1 is provided with a seat surface 10; the chair frame 1 is provided with a telescopic rod 2, specifically, the telescopic rod 2 can be extended or shortened, and connecting blocks 3 are provided at both ends of the telescopic rod 2, and the spacing between the two connecting blocks 3 can be adjusted to change with the length of the telescopic rod 2; further, preferably, at least two telescopic rods 2 are provided on the chair frame 1, the two telescopic rods 2 are located at the bottom of the chair frame 1, and the two telescopic rods 2 are arranged in parallel and spaced apart; in some embodiments, the chair frame 1 is also provided with a rotating seat 7, and the rotating seat 7 is located at the bottom of the chair frame 1.

[0032] See also Figure 2 , shown is a three-dimensional diagram of the chair frame of the present application, the chair frame 1 includes a seat 11 and a backrest 12; an adapter seat 13 is provided between the seat 11 and the backrest 12, the seat 11 and the adapter seat 13 are bolted, and the backrest 12 is rotatably connected to the adapter seat 13; the seat 11 includes two connecting rods 111, the two connecting rods 111 are arranged in parallel and spaced apart, and the connecting rod 111 is provided with four threaded holes, two of which match the telescopic rod 2, and the telescopic rod 2 is connected to the connecting rod 111 by a bolt structure, and the length axes of the connecting rod 111 and the telescopic rod 2 are perpendicular to each other, and the other two threaded holes match the rotating seat 7, and the rotating seat 7 is connected to the connecting rod 111 by a bolt structure.

[0033] See also Figure 3 , shown is a three-dimensional assembly diagram of the telescopic rod structure of the present application, the telescopic rod 2 includes a sleeve 21 and two support rods 22, the sleeve 21 is located between the two support rods 22, the support rod 22 can be inserted into and slide in the sleeve 21, and the two support rods 22 are respectively slidably connected to the two ends of the sleeve 21; further, both ends of the sleeve 21 are provided with locking sleeves 211, the locking sleeves 211 are used to lock or unlock the support rod 22, if not indicated in the figure, the locking sleeve 211 is connected to the sleeve 21 with a threaded structure, or the locking sleeve 211 can be connected to the sleeve 21 with a pin structure, and then the support rod 22 is inserted into the sleeve 21 and locked or unlocked by the locking sleeve 211.

[0034] Preferably, in this embodiment, the locking sleeve 211 is provided with hand-tightening threads 2111 .

[0035] Preferably, in this embodiment, the sleeve 21 and the support rod 22 are hollow round rods.

[0036] See also Figure 4 and Figure 5, shown are the three-dimensional assembly diagram of the connection block structure of the present application and the three-dimensional diagram of the support rod, respectively, the connection block 3 is provided with a sleeve hole 31, the support rod 22 is inserted into the connection block 3 through the sleeve hole 31, and the connection block 3 is sleeved on the support rod 22; the connection block 3 is provided with an adjusting rod 4 and a screw block 5, the adjusting rod 4 is provided with a clamping block 41, the connection block 3 is located between the screwing block 5 and the clamping block 41, the clamping block 41 is located at the end of the adjusting rod 4, the end of the adjusting rod 4 away from the clamping block 41 is provided with an external thread, the screwing block 5 is provided with a threaded through hole 51 and is threadedly connected to the adjusting rod 4, further, the two ends of the telescopic rod 2 are also provided with a first through hole 61, the connection block 3 is provided with a first through hole 61 connected to the first through hole The second through hole 62 matches the hole 61, the connecting block 3 is sleeved on the telescopic rod 2, the first through hole 61 and the second through hole 62 cooperate to form a limiting hole, and the adjusting rod 4 cooperates with the limiting hole to limit the connecting block 3; specifically, after the screw block 5 is rotated, the adjusting rod 4 can be driven to move and pass through the threaded through hole 51, and the screw block 5 can be rotated to adjust the distance between the clamping block 41 and the connecting block 3. The clamping block 41 cooperates with the connecting block 3 to clamp the installation platform. The installation platform here refers to the installation track, which is provided with a through hole matching the adjusting rod 4, and the size of the through hole is smaller than the clamping block 41, and the installation track is located between the connecting block 3 and the clamping block 41.

[0037] Preferably, in this embodiment, the size of the first through hole 61 is smaller than that of the second through hole 62 , which can increase the allowable error range of the opening and facilitate the adjustment rod 4 to be inserted into the first through hole 61 through the second through hole 62 .

[0038] Preferably, in this embodiment, the cross section of the screw block 5 is spline-shaped to facilitate screwing of the screw block 5 .

[0039] See also Figure 6 , shown is a three-dimensional diagram of the rotating seat of the present application, a rotating seat 7 is also provided on the chair frame 1, the rotating seat 7 includes two rotating disks 71, the two rotating disks 71 are rotatably connected, the two rotating disks 71 are respectively connected to the chair frame 1 and the mounting platform, preferably, the two rotating disks 71 are respectively connected to the chair frame 1 and the mounting platform by a bolt structure; specifically, the rotating disk 71 includes a connecting portion 711 and a protruding portion 712, the outer contour of the connecting portion 711 is rectangular, the outer contour of the protruding portion 712 is circular, the connecting portion 711 and the protruding portion 712 are integrally formed, further, the protruding portion 712 is protruded relative to the connecting portion 711, the protruding portions 712 of the two rotating disks 71 are relatively arranged and rotatably connected, and the connecting portion 711 is provided with a bolt through hole for connecting the chair frame 1 or the mounting platform.

[0040] See also Figure 7-Figure 8, shown are reference figures of the use state of the telescopic rod of the folding chair frame of the present application in a retracted state, reference figures of the use state of the telescopic rod of the folding chair frame in an extended state, and reference figures of the use state of the folding chair frame in a folded state. The folding chair frame 1 is provided with a telescopic rod 2 and a connecting block 3 structure. The role of the structure is that the spacing between the two connecting blocks 3 can be adjusted by the telescopic rod 2, so that the chair frame 1 can adapt to and be installed on installation platforms of different sizes, and has good versatility. The clamping block 41 cooperates with the connecting block 3 to clamp the installation platform, and the chair frame 1 can be detachably installed and has good stability. The folding chair frame 1 is provided with a rotating disk 71. The role of the folding chair frame 1 is to enable the folding chair frame 1 to rotate on a kayak, a small yacht or a hovercraft to adjust the riding direction of the passengers. The role of the foldable structure of the chair frame 1 is that it can reduce the space occupied by it in the environment.

[0041] The purpose of the above embodiments is to explain the present invention in detail in conjunction with the accompanying drawings so that those skilled in the art can understand the technical concept of the present invention. Within the scope of the claims of the present invention, the optimization or equivalent replacement of the structure of the parts involved, and the combination of the implementation methods in different embodiments without conflict of structure and principle, all fall within the protection scope of the present invention.

Claims

1. A foldable chair frame, comprising a foldable chair frame (1); characterized in that: The chair frame (1) is provided with a telescopic rod (2), both ends of the telescopic rod (2) are provided with connecting blocks (3), and the connecting block (3) is provided with an adjusting rod (4) and a twisting block (5); The adjusting rod (4) is provided with a clamping block (41), the screwing block (5) is provided with a threaded through hole (51) and is threadedly connected to the adjusting rod (4), and the screwing block (5) can be rotated to adjust the distance between the clamping block (41) and the connecting block (3), so that the clamping block (41) and the connecting block (3) cooperate to clamp the installation platform.

2. The folding chair frame according to claim 1, characterized in that: At least two telescopic rods (2) are provided on the chair frame (1).

3. The folding chair frame according to claim 1, characterized in that: Both ends of the telescopic rod (2) are also provided with first through holes (61); The connecting block (3) is provided with a second through hole (62) matching the first through hole (61); The connecting block (3) is sleeved on the telescopic rod (2), the first through hole (61) and the second through hole (62) cooperate to form a limiting hole, and the adjusting rod (4) cooperates with the limiting hole to limit the connecting block (3).

4. The folding chair frame according to claim 3, characterized in that: The size of the first through hole (61) is smaller than the size of the second through hole (62).

5. The folding chair frame according to claim 1, characterized in that: The cross section of the twist block (5) is spline-shaped.

6. The folding chair frame according to claim 1, characterized in that: The chair frame (1) is also provided with a rotating seat (7); The rotating seat (7) comprises two rotating disks (71), and the two rotating disks (71) are rotatably connected; The two rotating disks (71) are respectively connected to the chair frame (1) and the mounting platform.

7. The folding chair frame according to claim 6, characterized in that: The two rotating disks (71) are respectively connected to the chair frame (1) and the installation platform by means of a bolt structure.

8. The folding chair frame according to claim 1, characterized in that: The telescopic rod (2) comprises a sleeve (21) and two supporting rods (22); The two support rods (22) are respectively slidably connected to the two ends of the sleeve (21), and both ends of the sleeve (21) are provided with locking sleeves (211), and the locking sleeves (211) are used to lock or unlock the support rods (22).

9. The folding chair frame according to claim 8, characterized in that: The locking sleeve (211) is provided with hand-twisting threads (2111).

10. The folding chair frame according to claim 1, characterized in that: The chair frame (1) comprises a seat (11) and a backrest (12); A transfer seat (13) is provided between the seat (11) and the backrest (12); The chair seat (11) is connected to the adapter seat (13) by bolts; The chair back (12) is rotatably connected to the adapter seat (13).

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