Joint assembly and infant nursing table comprising same

Abstract

The joint assembly comprises a first joint and a second joint, the second joint is arranged on the first joint in a rotatable mode, the joint assembly further comprises a first elastic locking rod, the two ends of the first elastic locking rod are provided with a first moving end and a first locking end respectively, and the first moving end and the first locking end are arranged on the first elastic locking rod. A first mounting space is arranged on the first joint, the first elastic lock rod is movably arranged on the first mounting space, the first moving end and the first locking end respectively extend out of the first mounting space, a second locking hole is formed in the position, corresponding to the first locking end, of the second joint, and the first locking end extends into the second locking hole; according to the joint assembly, relative rotation and relative locking of the second joint are controlled through the first elastic locking rod, so that unfolding and folding operation of the second joint is simple and labor-saving, and the second joint is stable in state after being unfolded.

Description

Technical Field

[0001] The utility model relates to the technical field of baby care equipment, in particular to a joint component and a baby care table comprising the joint component. Background Art

[0002] The existing baby care table, see Chinese utility model patent number: 2020204310309, name: a baby care table, authorization announcement date: February 9, 2021, includes a support frame, a load-bearing frame and a table top; the load-bearing frame is movably connected to the support frame and carries the table top, and the support frame, the load-bearing frame and the table top are all foldable structures. The utility model can be folded, and the table top is carried by the load-bearing frame, so that the table top has a large load-bearing capacity.

[0003] In the above-mentioned baby care table, the first front support rod, the second front support rod, the first rear support rod and the second rear support rod can all be formed by splicing two short rods, the middle part of the first front support rod is hinged to the middle part of the second front support rod, and the middle part of the first rear support rod is hinged to the middle part of the second rear support rod.

[0004] However, the baby care table with the above structure still has the following shortcomings: (1) The two adjacent support rods are folded by being hinged in the middle. In order to ensure the stability of the connection between the two adjacent support rods in the middle, the locking force of the two adjacent support rods is increased when they are hinged, which also makes the folding operation of the two support rods more laborious. Utility Model Content

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a joint assembly which is simple to unfold and fold, saves effort, and has a stable state after the joint assembly is unfolded.

[0006] Another object of the utility model is to provide a baby care table which is easy to unfold and fold, saves effort, has a stable state of joint components after unfolding, and has a small volume after folding.

[0007] The purpose of the utility model is achieved in this way:

[0008] A joint assembly comprises a first joint and a second joint, wherein the second joint is rotatably arranged on the first joint, and is characterized in that the first joint further comprises a first elastic locking rod, wherein the two ends of the first elastic locking rod are respectively provided with a first movable end and a first locking end, a first installation space is provided on the first joint, the first elastic locking rod is movably arranged on the first installation space, and the first movable end and the first locking end respectively extend out of the first installation space, a second locking hole is provided at a position of the second joint corresponding to the first locking end, and the first locking end extends into the second locking hole; in this joint assembly, when the second joint needs to be unfolded, it is only necessary to rotate the second joint until the first elastic locking rod and the second locking hole on the second joint correspond, at which time the first locking end of the first elastic locking rod will be inserted into the second locking hole, and when the second joint needs to be folded, it is only necessary to pull the first movable end so that the first locking end is disengaged from the second locking hole, at which time the second joint can be easily rotated to realize the folding of the second joint, and the whole process is simple and labor-saving to operate, and furthermore, the first locking end is inserted into the second locking hole to realize the relative locking of the second joint on the first joint, thereby ensuring the stability of the state of the second joint after unfolding.

[0009] The purpose of the utility model can also be solved by the following technical measures:

[0010] Specifically, the first elastic locking rod includes a first moving block, a first spring and a first locking rod. The first moving block is fixedly connected to one end of the first locking rod, and the other end of the first locking rod is provided with the first locking end. The first moving block constitutes the first moving end, and the two ends of the first spring are respectively against the side wall of the first installation space and the first locking rod; the first moving block facilitates the user to pull the first locking rod to move, thereby compressing the first spring. When the user releases the first moving block, the first locking rod will move under the elastic reset force of the first spring.

[0011] Specifically, a first locking block extends from one end of the first locking rod, and a hemispherical first locking end is provided on the first locking block. A first connecting column extends outward from the center of the other end of the first locking rod, and one end of the first connecting column extends out of the first installation space and is fixedly connected to the first movable block. The first spring is sleeved on the first connecting column, and the two ends of the first spring are respectively abutted against the side wall of the first installation space and the other end of the first locking rod; the hemispherical first locking end facilitates its extension into the second locking hole, and the first connecting column provides a stable connection carrier for the first spring, thereby making the abutment between the first spring and the first locking rod stable.

[0012] Specifically, the first movable block is provided with a seating groove and a through countersunk hole connected to the seating groove, one end of the first connecting column is inserted into the seating groove and a connecting through hole is opened on the first connecting column corresponding to the through countersunk hole, a connecting screw extends from top to bottom into the through countersunk hole and passes through the connecting through hole of the first connecting column; so that the first movable block can be stably connected to one end of the first connecting column. At the same time, this screw connection method is simple to operate and easy to implement.

[0013] Specifically, it also includes a third joint and a second elastic locking rod. The third joint is rotatably placed on the first joint and the third joint is located above the second joint. The two ends of the second elastic locking rod are respectively a second movable end and a second locking end. A second installation space is provided on the first joint. The second elastic locking rod is movably placed on the second installation space, and the second movable end and the second locking end respectively extend out of the second installation space. A third locking hole is opened at the position of the third joint corresponding to the second locking end, and the second locking end extends into the third locking hole. The third joint is unfolded and folded on the first joint through the second elastic locking rod, and its operation is also relatively simple and labor-saving. Furthermore, the second locking end cooperates with the third locking hole to realize relative locking of the third joint on the first joint, thereby ensuring the stability of the state of the third joint after unfolding.

[0014] Specifically, it also includes a fourth joint and a third elastic locking rod. The fourth joint is rotatably placed on the first joint and the fourth joint is located above the third joint. The two ends of the third elastic locking rod are respectively a third movable end and a third locking end. A third installation space is provided on the first joint. The third elastic locking rod is movably placed on the third installation space, and the third movable end and the third locking end respectively extend out of the third installation space. A fourth locking hole is opened at the position of the fourth joint corresponding to the third locking end, and the third locking end extends into the fourth locking hole. The fourth joint is unfolded and folded on the first joint through the third elastic locking rod, and its operation is also relatively simple and labor-saving. Furthermore, the third locking end cooperates with the fourth locking hole to realize relative locking of the fourth joint on the first joint, thereby ensuring the stability of the fourth joint after unfolding.

[0015] Specifically, the first joint is provided with a first limiting portion, the second joint is provided with a second lower limiting portion and a second upper limiting portion, the third joint is provided with a third lower limiting portion and a third upper limiting portion, and the fourth joint is provided with a fourth limiting portion. The first limiting portion abuts against the second lower limiting portion, the second upper limiting portion abuts against the third lower limiting portion, and the third upper limiting portion abuts against the fourth limiting portion. Through the abutment and cooperation between the limiting portions, the extreme positions of the second joint, the third joint and the fourth joint in the unfolded state are limited, thereby facilitating the user's rotation operation.

[0016] Specifically, a circular ring-shaped flange is arranged on the first joint, and the second joint, the third joint and the fourth joint are sequentially arranged on the outer circumference of the circular ring-shaped flange, and a mounting seat is arranged on the inner circumference of the circular ring-shaped flange, and the first mounting space, the second mounting space and the third mounting space are opened in the mounting seat; the circular ring-shaped flange facilitates the second joint, the third joint and the fourth joint to realize rotation on the first joint; the mounting seat provides a carrier for the first mounting space, the second mounting space and the third mounting space, and its structure is simple and easy to implement.

[0017] Specifically, it also includes a moving seat, which has an inner groove, a first moving groove, a second moving groove and a third moving groove, the first moving groove, the second moving groove and the third moving groove are respectively connected to the inner groove, the moving seat is sleeved on the outer side of the mounting seat through the inner groove, the first moving end extends into the first moving groove, the second moving end extends into the second moving groove, and the third moving end extends into the third moving groove; the moving seat can simultaneously realize the simultaneous movement of the first moving end, the second moving end and the third moving end, and then realize the simultaneous rotation of the second joint, the third joint and the fourth joint, and its implementation effect is better.

[0018] Another purpose of the utility model is achieved in this way:

[0019] A baby care table including the above-mentioned joint assembly is characterized in that it includes two of the joint assemblies, a first bracket, a second bracket, a support frame, a care table cloth and four support legs, the two ends of the first bracket are respectively fixedly connected to the first joints of the two joint assemblies, the two ends of the second bracket are respectively fixedly connected to the second joints of the two joint assemblies, the four support legs are respectively fixedly connected to the third joints and the fourth joints of the two joint assemblies, the two ends of the support frame are respectively rotatably connected to the first bracket and the second bracket, the two ends of the care table cloth are respectively sleeved on the upper part of the first bracket and the upper part of the second bracket, and the care table cloth is located above the support frame; this baby care table can realize the folding or unfolding of the first bracket, the second bracket and the four support legs through the two joint assemblies, and its operation is also relatively simple and labor-saving. In addition, when folding the above-mentioned baby care table, the first bracket and the second bracket can be folded downward, and the four support legs can also be folded inwardly, so that the first bracket, the second bracket and the four support legs are overlapped, thereby ensuring that the volume of the baby care table after folding is small, the space occupied is small, and it is convenient to place.

[0020] The beneficial effects of the utility model are as follows:

[0021] (1) In this joint assembly, when the second joint needs to be unfolded, it is only necessary to rotate the second joint until the first elastic locking rod and the second locking hole on the second joint correspond to each other. At this time, the first locking end of the first elastic locking rod will be inserted into the second locking hole. When the second joint needs to be folded, it is only necessary to pull the first movable end so that the first locking end is disengaged from the second locking hole. At this time, the second joint can be easily rotated to achieve the folding of the second joint. The whole process is simple and labor-saving to operate. In addition, by inserting the first locking end into the second locking hole, the second joint is relatively locked on the first joint, thereby ensuring the stability of the state of the second joint after unfolding.

[0022] (2) By means of the abutment and cooperation between the various limiting parts, the extreme positions of the second joint, the third joint and the fourth joint in the unfolded state are limited, thereby facilitating the user's rotation operation.

[0023] (3) This baby care table can realize the folding or unfolding of the first bracket, the second bracket and the four supporting legs through two joint components, and its operation is relatively simple and labor-saving. In addition, when folding the above-mentioned baby care table, the first bracket and the second bracket can be folded downward, and the four supporting legs can be folded inward, so that the first bracket, the second bracket and the four supporting legs overlap, thereby ensuring that the volume of the baby care table after folding is small, the space occupied is small, and it is easy to place. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the joint assembly of the utility model.

[0025] Figure 2 It is a cross-sectional view of the joint assembly of the utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A.

[0027] Figure 4 This is a disassembled diagram of the joint assembly of the utility model.

[0028] Figure 5 This is a disassembled view of the first elastic locking rod of the utility model.

[0029] Figure 6 It is a schematic diagram of the unfolded state of the baby care table of the utility model.

[0030] Figure 7 The utility model is a schematic diagram of the baby care table in the folded state. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0032] Example, combined with Figures 1 to 5As shown, a joint assembly includes a first joint 1 and a second joint 2, wherein the second joint 2 is rotatably placed on the first joint 1, and is characterized in that it also includes a first elastic locking rod 3, wherein the two ends of the first elastic locking rod 3 are respectively provided with a first movable end 31 and a first locking end 32, a first installation space 11 is provided on the first joint 1, the first elastic locking rod 3 is movably placed on the first installation space 11, and the first movable end 31 and the first locking end 32 respectively extend out of the first installation space 11, a second locking hole 21 is opened at the position of the second joint 2 corresponding to the first locking end 32, and the first locking end 32 extends into the second locking hole 21.

[0033] As a specific solution, the first elastic locking rod 3 includes a first moving block, a first spring 33 and a first locking rod 34. The first moving block is fixedly connected to one end of the first locking rod 34, and the other end of the first locking rod 34 is provided with the first locking end 32. The first moving block constitutes the first moving end 31, and the two ends of the first spring 33 are respectively against the side wall of the first installation space 11 and the first locking rod 34.

[0034] In this embodiment, a first locking block 341 extends from one end of the first locking rod 34, and a hemispherical first locking end 32 is provided on the first locking block 341. A first connecting column 342 extends outward from the center of the other end of the first locking rod 34. One end of the first connecting column 342 extends out of the first installation space 11 and is fixedly connected to the first moving block. The first spring 33 is sleeved on the first connecting column 342, and the two ends of the first spring 33 are respectively against the side wall of the first installation space 11 and the other end of the first locking rod 34.

[0035] In this embodiment, the first movable block is provided with a seating groove 311 and a through countersunk hole 312 connected to the seating groove 311, one end of the first connecting column 342 is inserted into the seating groove 311 and a connecting through hole 343 is opened on the first connecting column 342 at a position corresponding to the through countersunk hole 312, and a connecting screw 4 extends from top to bottom into the through countersunk hole 312 and passes through the connecting through hole 343 of the first connecting column 342.

[0036] As a more specific solution, it also includes a third joint 5 and a second elastic locking rod 6. The third joint 5 is rotatably placed on the first joint 1 and the third joint 5 is located above the second joint 2. The two ends of the second elastic locking rod 6 are respectively a second movable end 61 and a second locking end 62. A second installation space 12 is provided on the first joint 1. The second elastic locking rod 6 is movably placed on the second installation space 12, and the second movable end 61 and the second locking end 62 respectively extend out of the second installation space 12. A third locking hole 51 is opened on the third joint 5 corresponding to the second locking end 62, and the second locking end 62 extends into the third locking hole 51.

[0037] As a better embodiment, it also includes a fourth joint 7 and a third elastic locking rod 8. The fourth joint 7 is rotatably placed on the first joint 1 and the fourth joint 7 is located above the third joint 5. The two ends of the third elastic locking rod 8 are respectively a third movable end 81 and a third locking end 82. A third installation space 13 is provided on the first joint 1. The third elastic locking rod 8 is movably placed on the third installation space 13, and the third movable end 81 and the third locking end 82 respectively extend out of the third installation space 13. A fourth locking hole 71 is opened at the position of the fourth joint 7 corresponding to the third locking end 82, and the third locking end 82 extends into the fourth locking hole 71.

[0038] The structures of the second elastic locking rod 6 and the third elastic locking rod 8 are the same as those of the first elastic locking rod 3 , and will not be described in detail here.

[0039] In this embodiment, a first limiting portion 14 is provided on the first joint 1, a second lower limiting portion 22 and a second upper limiting portion 23 are provided on the second joint 2, a third lower limiting portion 52 and a third upper limiting portion 53 are provided on the third joint 5, and a fourth limiting portion 72 is provided on the fourth joint 7. The first limiting portion 14 abuts against the second lower limiting portion 22, the second upper limiting portion 23 abuts against the third lower limiting portion 52, and the third upper limiting portion 53 abuts against the fourth limiting portion 72; more specifically, the first limiting portion 14 and the fourth limiting portion 72 are both limiting surfaces, and the second lower limiting portion 22, the second upper limiting portion 23, the third lower limiting portion 52 and the third upper limiting portion 53 are all limiting blocks.

[0040] In this embodiment, a circular ring-shaped flange 15 is provided on the first joint 1, and the second joint 2, the third joint 5 and the fourth joint 7 are sequentially arranged on the outer periphery of the circular ring-shaped flange 15, and a mounting seat 16 is provided on the inner periphery of the circular ring-shaped flange 15, and the first mounting space 11, the second mounting space 12 and the third mounting space 13 are opened in the mounting seat 16.

[0041] As a more preferred embodiment, it also includes a moving seat 9, which has an inner groove 91, a first moving groove 92, a second moving groove 93 and a third moving groove 94. The first moving groove 92, the second moving groove 93 and the third moving groove 94 are respectively connected to the inner groove 91. The moving seat 9 is sleeved on the outer side of the mounting seat 16 through the inner groove 91. The first moving end 31 extends into the first moving groove 92, the second moving end 61 extends into the second moving groove 93, and the third moving end 81 extends into the third moving groove 94. One end of the moving seat 9 also extends outward with an extension portion 95 for the convenience of users to pull.

[0042] Combination Figure 6 and Figure 7As shown, a baby care table including the above-mentioned joint assembly is characterized in that it includes two of the joint assemblies, a first bracket 10, a second bracket 20, a support frame 30, a nursing table cloth 40 and four supporting legs 50, the two ends of the first bracket 10 are respectively fixedly connected to the first joints 1 of the two joint assemblies, the two ends of the second bracket 20 are respectively fixedly connected to the second joints 2 of the two joint assemblies, the four supporting legs 50 are respectively fixedly connected to the third joint 5 and the fourth joint 7 of the two joint assemblies, the two ends of the support frame 30 are respectively rotatably connected to the first bracket 10 and the second bracket 20, the two ends of the nursing table cloth 40 are respectively sleeved on the upper part of the first bracket 10 and the upper part of the second bracket 20, and the nursing table cloth 40 is located above the support frame 30.

Claims

1. A joint assembly comprising a first joint (1) and a second joint (2), wherein the second joint (2) is rotatably disposed on the first joint (1), and wherein: The invention also includes a first elastic locking rod (3), wherein the first elastic locking rod (3) is respectively provided with a first movable end (31) and a first locking end (32); a first installation space (11) is provided on the first joint (1); the first elastic locking rod (3) is movably placed on the first installation space (11), and the first movable end (31) and the first locking end (32) respectively extend out of the first installation space (11); a second locking hole (21) is opened at a position corresponding to the first locking end (32) of the second joint (2), and the first locking end (32) extends into the second locking hole (21).

2. The joint assembly according to claim 1, wherein: The first elastic locking rod (3) comprises a first moving block, a first spring (33) and a first locking rod (34); the first moving block is fixedly connected to one end of the first locking rod (34); the other end of the first locking rod (34) is provided with the first locking end (32); the first moving block constitutes the first moving end (31); and the two ends of the first spring (33) respectively abut against the side wall of the first installation space (11) and the first locking rod (34).

3. The joint assembly according to claim 2, wherein: A first locking block (341) extends from one end of the first locking rod (34), and a hemispherical first locking end (32) is provided on the first locking block (341). A first connecting column (342) extends outward from the center of the other end of the first locking rod (34), and one end of the first connecting column (342) extends out of the first installation space (11) and is fixedly connected to the first moving block. The first spring (33) is sleeved on the first connecting column (342), and the two ends of the first spring (33) respectively abut against the side wall of the first installation space (11) and the other end of the first locking rod (34).

4. The joint assembly according to claim 3, wherein: The first movable block is provided with a seating groove (311) and a through countersunk hole (312) connected to the seating groove (311); one end of the first connecting column (342) is inserted into the seating groove (311) and a connecting through hole (343) is opened on the first connecting column (342) at a position corresponding to the through countersunk hole (312); a connecting screw (4) extends from top to bottom into the through countersunk hole (312) and passes through the connecting through hole (343) of the first connecting column (342).

5. The joint assembly according to claim 1, wherein: The invention also includes a third joint (5) and a second elastic locking rod (6), wherein the third joint (5) is rotatably disposed on the first joint (1) and the third joint (5) is located above the second joint (2), and the two ends of the second elastic locking rod (6) are respectively a second movable end (61) and a second locking end (62), and a second installation space (12) is provided on the first joint (1), and the second elastic locking rod (6) is movably disposed on the second installation space (12), and the second movable end (61) and the second locking end (62) respectively extend out of the second installation space (12), and a third locking hole (51) is opened at a position of the third joint (5) corresponding to the second locking end (62), and the second locking end (62) extends into the third locking hole (51).

6. The joint assembly according to claim 5, wherein: The invention also includes a fourth joint (7) and a third elastic locking rod (8), wherein the fourth joint (7) is rotatably disposed on the first joint (1) and the fourth joint (7) is located above the third joint (5), and the two ends of the third elastic locking rod (8) are respectively a third movable end (81) and a third locking end (82), and a third installation space (13) is provided on the first joint (1). The third elastic locking rod (8) is movably disposed on the third installation space (13), and the third movable end (81) and the third locking end (82) respectively extend out of the third installation space (13), and a fourth locking hole (71) is opened on the fourth joint (7) at a position corresponding to the third locking end (82), and the third locking end (82) extends into the fourth locking hole (71).

7. The joint assembly according to claim 6, wherein: The first joint (1) is provided with a first limiting portion (14), the second joint (2) is provided with a second lower limiting portion (22) and a second upper limiting portion (23), the third joint (5) is provided with a third lower limiting portion (52) and a third upper limiting portion (53), and the fourth joint (7) is provided with a fourth limiting portion (72). The first limiting portion (14) is offset against the second lower limiting portion (22), the second upper limiting portion (23) is offset against the third lower limiting portion (52), and the third upper limiting portion (53) is offset against the fourth limiting portion (72).

8. The joint assembly according to claim 6, wherein: The first joint (1) is provided with a circular convex edge (15), the second joint (2), the third joint (5) and the fourth joint (7) are sequentially sleeved on the outer periphery of the circular convex edge (15), the inner periphery of the circular convex edge (15) is provided with a mounting seat (16), and the mounting seat (16) is provided with the first mounting space (11), the second mounting space (12) and the third mounting space (13).

9. The joint assembly according to claim 8, wherein: The invention also includes a movable seat (9), wherein the movable seat (9) is provided with an inner groove (91), a first movable groove (92), a second movable groove (93) and a third movable groove (94), wherein the first movable groove (92), the second movable groove (93) and the third movable groove (94) are respectively connected to the inner groove (91), and the movable seat (9) is sleeved on the outer side of the mounting seat (16) through the inner groove (91), wherein the first movable end (31) extends into the first movable groove (92), the second movable end (61) extends into the second movable groove (93), and the third movable end (81) extends into the third movable groove (94).

10. A baby care table comprising the joint assembly according to any one of claims 6 to 9, characterized in that: The invention comprises two joint assemblies, a first bracket (10), a second bracket (20), a support frame (30), a nursing table cloth (40) and four supporting legs (50), wherein the two ends of the first bracket (10) are respectively fixedly connected to the first joints (1) of the two joint assemblies, the two ends of the second bracket (20) are respectively fixedly connected to the second joints (2) of the two joint assemblies, the four supporting legs (50) are respectively fixedly connected to the third joints (5) and the fourth joints (7) of the two joint assemblies, the two ends of the support frame (30) are respectively rotatably connected to the first bracket (10) and the second bracket (20), the two ends of the nursing table cloth (40) are respectively sleeved on the upper part of the first bracket (10) and the upper part of the second bracket (20), and the nursing table cloth (40) is located above the support frame (30).

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