Folding joint structure

Abstract

The invention provides a folding joint structure. The folding joint structure comprises a first connecting base, a second connecting base, an adjusting piece, a limiting piece and an elastic piece. The first connecting seat is provided with a first connecting hole, the second connecting seat is provided with a second connecting hole, two symmetrically arranged first limiting parts are arranged on the inner wall of the first connecting hole, two symmetrically arranged second limiting parts are arranged on the inner wall of the second connecting hole, and the adjusting part is used for driving the limiting part to enter the first limiting hole from the second limiting hole. The elastic piece is used for driving the limiting piece to move towards the adjusting piece; the second connecting seat has a first position and a second position relative to the first connecting seat; when the second connecting base is located at the first position and the second position, one part of the limiting piece is clamped to the first limiting part, and the other part of the limiting piece is clamped to the second limiting part; and when the second connecting seat rotates between the first position and the second position, the limiting piece is clamped to the first limiting part and is separated from the second limiting part. The folding joint structure is very convenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of folding joint structures, and in particular to a folding joint structure. Background Art

[0002] The folding joint structure is mainly used for the folding parts of tools such as carts. In general carts, the folding process of the folding joint structure needs to be unlocked first and then folded. In other words, the entire folding process needs to be divided into two actions, namely the unlocking action and the folding action, which is very troublesome to operate. Summary of the invention

[0003] The purpose of the present invention is to provide a folding joint structure, aiming to solve the problem of inconvenient operation of the existing folding joint structure.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A folding joint structure is provided, comprising a first connecting seat, a second connecting seat, an adjusting member, a limiting member and an elastic member; the first connecting seat is provided with a first connecting hole, the second connecting seat is provided with a second connecting hole, the inner wall of the first connecting hole is provided with two symmetrically arranged first limiting portions, the inner wall of the second connecting hole is provided with two symmetrically arranged second limiting portions, the first limiting portion and the second limiting portion are both used to limit the rotation of the limiting member, the adjusting member is used to drive the limiting member to enter the first limiting hole from the second limiting hole, and the elastic member is used to drive the limiting member to move toward the adjusting member;

[0006] The second connecting seat has a first position and a second position relative to the first connecting seat; when the second connecting seat is in the first position and the second position, a part of the limiting member is engaged with the first limiting portion, and another part of the limiting member is engaged with the second limiting portion; when the second connecting seat rotates between the first position and the second position, the limiting member is engaged with the first limiting portion and disengaged from the second limiting portion.

[0007] Optionally, a first limiting groove is provided on an outer wall of the limiting member, and both the first limiting portion and the second limiting portion can be snap-connected to the first limiting groove.

[0008] Optionally, the outer wall of the limiting member is provided with a second limiting groove, and the adjusting member is provided with an adjusting block, and the adjusting block can be plugged into the second limiting groove.

[0009] Optionally, the shape of the second limiting groove and the shape of the adjusting block are both triangles that fit each other.

[0010] Optionally, it also includes a support column, which is threadedly connected to the first connecting seat, the elastic member is a spring, the spring is sleeved on the support column, a through hole is provided in the middle of the limiting member, the support column is inserted into the through hole, and the limiting member is located between the spring and the adjusting member.

[0011] Optionally, an adjusting column is provided on a side of the adjusting member close to the limiting member, and the adjusting column is inserted into the through hole.

[0012] Optionally, a handle is provided on a side of the adjusting member away from the limiting member.

[0013] Optionally, it further includes a first connecting rod, which is plugged into the first connecting seat.

[0014] Optionally, a second connecting rod is further included, and the second connecting rod is plugged into the second connecting seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The folding joint structure provided by the present invention rotates the adjusting member to make the adjusting block leave the second limiting groove, thereby pushing the limiting member to leave the second limiting hole and completely enter the first limiting hole. The adjusting member contacts the second limiting portion during continued rotation, thereby driving the second connecting seat to rotate, thereby completing the folding function. Compared with the existing entire folding process which requires two actions, the folding joint structure of the present invention can be folded with only one rotation action, which is very convenient to operate.

[0017] 2. The folding joint structure provided by the present invention is provided with an elastic member. The elastic member is squeezed and in a compressed state during the folding and storage process. After folding and storage, the limiting member moves toward the second connecting seat under the elastic force of the elastic member. After the second connecting seat rotates 180 degrees, since the two second limiting parts are symmetrically arranged, the limiting member can be snapped onto the second limiting part, thereby completing the locking, which is very convenient to operate.

[0018] 3. The folding joint structure provided by the present invention can transform the storage state into the unfolding state by rotating the adjusting piece in the opposite direction, which is very convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1It is a structural schematic diagram of the folding joint structure of the present invention;

[0021] Figure 2 It is an exploded schematic diagram of the folding joint structure of the present invention.

[0022] In the figure: 1. first connecting seat; 11. first connecting hole; 12. first limiting part; 2. second connecting seat; 21. second connecting hole; 3. adjusting member; 31. adjusting block; 32. adjusting column; 33. handle; 4. limiting member; 41. first limiting groove; 42. second limiting groove; 43. through hole; 5. elastic member; 6. first connecting rod; 7. second connecting rod; 8. supporting column. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0026] Combine the following Figure 1 and Figure 2 The folding joint structure of the present invention is described.

[0027] like Figure 1 and Figure 2As shown, the present invention provides a folding joint structure, including a first connecting seat 1, a second connecting seat 2, an adjusting member 3, a limiting member 4 and an elastic member 5; the first connecting seat 1 is provided with a first connecting hole 11, the second connecting seat 2 is provided with a second connecting hole 21, the inner wall of the first connecting hole 11 is provided with two symmetrically arranged first limiting portions 12, the inner wall of the second connecting hole 21 is provided with two symmetrically arranged second limiting portions, the first limiting portion 12 and the second limiting portion are both used to limit the rotation of the limiting member 4, the adjusting member 3 is used to drive the limiting member 4 to enter the first limiting hole from the second limiting hole, and the elastic member 5 is used to drive the limiting member 4 to move toward the adjusting member 3.

[0028] Among them, the second connecting seat 2 has a first position and a second position relative to the first connecting seat 1; when the second connecting seat 2 is in the first position and the second position, a part of the limiting member 4 is clamped in the first limiting portion 12, and the other part of the limiting member 4 is clamped in the second limiting portion; when the second connecting seat 2 rotates between the first position and the second position, the limiting member 4 is clamped in the first limiting portion 12 and disengaged from the second limiting portion.

[0029] The folding joint structure provided by the present invention rotates the adjusting member 3 to make the adjusting block 31 leave the second limiting groove 42, thereby pushing the limiting member 4 to leave the second limiting hole and completely enter the first limiting hole. The adjusting member 3 contacts the second limiting portion during continued rotation, thereby driving the second connecting seat 2 to rotate, thereby completing the folding function. Compared with the existing folding process that requires two actions to complete the entire folding process, the folding joint structure of the present invention can be folded with only one rotation action, which is very convenient to operate.

[0030] In addition, the folding joint structure provided by the present invention can transform the storage state into the unfolding state by rotating the adjusting member 3 in the opposite direction, which is very convenient to operate.

[0031] In some embodiments, the outer wall of the limiting member 4 is provided with a first limiting groove 41, and the first limiting portion 12 and the second limiting portion can be snapped into the first limiting groove 41, which can limit the rotation of the limiting member 4. It can be understood that the mutual rotation between the first connecting seat 1 and the second connecting seat 2 can also be prevented.

[0032] In some embodiments, the outer wall of the limiting member 4 is provided with a second limiting groove 42, and the adjusting member 3 is provided with an adjusting block 31, which can be inserted into the second limiting groove 42, and can limit the self-rotation of the adjusting member 3 to ensure that the adjusting member 3 will not rotate without external force.

[0033] In some embodiments, the shape of the second limiting groove 42 and the shape of the adjustment block 31 are both mutually compatible triangles. The setting of the triangle can allow the adjustment member 3 to push the limiting member 4 to leave the second limiting portion during rotation, completing two operations in one action, which is very convenient to operate.

[0034] In some embodiments, it also includes a support column 8, which is threadedly connected to the first connecting seat 1, the elastic member 5 is a spring, the spring is sleeved on the support column 8, a through hole 43 is provided in the middle of the limiting member 4, the support column 8 is inserted into the through hole 43, and the limiting member 4 is located between the spring and the adjusting member 3.

[0035] The folding joint structure provided by the present invention is provided with an elastic member 5. The elastic member 5 is squeezed and in a compressed state during the folding and storage process. After folding and storage, the limit member 4 moves toward the second connecting seat 2 under the elastic force of the elastic member 5. After the second connecting seat 2 rotates 180 degrees, since the two second limit parts are symmetrically arranged, the limit member 4 can be clamped on the second limit part, thereby completing the locking, which is very convenient to operate.

[0036] In some embodiments, an adjusting column 32 is provided on one side of the adjusting member 3 close to the limiting member 4 , and the adjusting column 32 is inserted into the through hole 43 , so that the rotation is smoother.

[0037] In some embodiments, a handle 33 is provided on the side of the adjusting member 3 away from the limiting member 4 to facilitate manual operation of rotating the adjusting member 3, making it more convenient to use.

[0038] In some embodiments, a first connecting rod 6 is further included, and the first connecting rod 6 is plugged into the first connecting seat 1, which is more convenient to use.

[0039] In some embodiments, a second connecting rod 7 is further included, and the second connecting rod 7 is plugged into the second connecting seat 2, which is more convenient to use.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A folding joint structure, characterized in that: The invention comprises a first connecting seat (1), a second connecting seat (2), an adjusting member (3), a limiting member (4) and an elastic member (5); the first connecting seat (1) is provided with a first connecting hole (11), the second connecting seat (2) is provided with a second connecting hole (21), the inner wall of the first connecting hole (11) is provided with two symmetrically arranged first limiting portions (12), the inner wall of the second connecting hole (21) is provided with two symmetrically arranged second limiting portions, the first limiting portion (12) and the second limiting portion are both used to limit the rotation of the limiting member (4), the adjusting member (3) is used to drive the limiting member (4) from the second limiting hole to enter the first limiting hole, and the elastic member (5) is used to drive the limiting member (4) to move toward the adjusting member (3); The second connecting seat (2) has a first position and a second position relative to the first connecting seat (1); when the second connecting seat (2) is in the first position and the second position, a part of the limiting member (4) is engaged with the first limiting portion (12), and another part of the limiting member (4) is engaged with the second limiting portion; when the second connecting seat (2) rotates between the first position and the second position, the limiting member (4) is engaged with the first limiting portion (12) and disengaged from the second limiting portion.

2. The folding joint structure according to claim 1, characterized in that: The outer wall of the limiting member (4) is provided with a first limiting groove (41), and the first limiting portion (12) and the second limiting portion can both be snap-connected to the first limiting groove (41).

3. The folding joint structure according to claim 2, characterized in that: The outer wall of the limiting member (4) is provided with a second limiting groove (42), and the adjusting member (3) is provided with an adjusting block (31), and the adjusting block (31) can be plugged into the second limiting groove (42).

4. The folding joint structure according to claim 3, characterized in that: The shape of the second limiting groove (42) and the shape of the adjustment block (31) are both mutually compatible triangles.

5. The folding joint structure according to claim 4, characterized in that: It also includes a support column (8), the support column (8) is threadedly connected to the first connecting seat (1), the elastic member (5) is a spring, the spring is sleeved on the support column (8), a through hole (43) is provided in the middle of the limiting member (4), the support column (8) is inserted into the through hole (43), and the limiting member (4) is located between the spring and the adjusting member (3).

6. The folding joint structure according to claim 5, characterized in that: An adjusting column (32) is provided on one side of the adjusting member (3) close to the limiting member (4), and the adjusting column (32) is inserted into the through hole (43).

7. The folding joint structure according to claim 6, characterized in that: A handle (33) is provided on a side of the adjusting member (3) away from the limiting member (4).

8. The folding joint structure according to claim 1, characterized in that: It also comprises a first connecting rod (6), wherein the first connecting rod (6) is plugged into the first connecting seat (1).

9. The folding joint structure according to claim 1, characterized in that: It also comprises a second connecting rod (7), wherein the second connecting rod (7) is plugged into the second connecting seat (2).

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