Joint locking structure and bedside fence
By designing a joint locking structure including the first joint seat and the second joint seat, the problem of complex unlocking operation in the prior art is solved, and the problem that the fence cannot be folded easily when it is not needed is solved through the foldable bedside fence design, which realizes the simplicity, compactness, convenient operation and quick operation of the joint locking structure, and the safety of the bedside fence and space saving effect.
Patent Information
- Application Number
- CN202420741899.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The joint locking structure is now complex and inconvenient when unlocking, and the bedside fence cannot be folded easily and save space when it is not needed.
An articulated locking structure including a first joint seat and a second joint seat is designed, and a simple and compact locking and convenient and fast unlocking are achieved through the combination of pins, teeth and springs. At the same time, the bedside fence adopts a foldable design, which connects the upper U-shaped rod and the lower U-shaped rod through the joint locking structure to achieve convenient expansion and folding.
It realizes the simple, compact and convenient operation of the joint locking structure. The bedside fence can be folded easily when it is not needed to be used, ensuring safety and suitable for promotional applications.
Smart Images
Figure CN222633645U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to a joint locking structure and also relates to a bedside fence. [Background technology]
[0002] The joint locking structure is a locking structure used between components with a rotational relationship to lock the relative positions of the components. It is widely used in products such as child strollers, bedside fences and bed guardrails. The general joint locking structure includes two shells, each shell has a snap-fit groove arranged along the circumferential direction, and a gear that can move laterally is arranged in the space enclosed by the two shells. When the gear is engaged with the snap-fit grooves on both shells, the component is in a locked state. When the button is used to push the gear to disengage the snap-fit groove of one of the shells, the two shells can rotate relative to each other, and the component using this locking structure can also rotate relative to each other.
[0003] The utility model provides another joint locking structure and a bedside fence which are different from the aforementioned joint locking structure. [Contents of the utility model]
[0004] The utility model aims to overcome the deficiencies of the prior art and provide a joint locking structure which has a simple structure and is easy to operate.
[0005] The utility model also provides a bedside fence which has a simple structure and is easy to fold and operate.
[0006] The utility model is realized by the following technical solutions:
[0007] A joint locking structure 4 includes a first joint seat 41 and a second joint seat 42, wherein the first joint seat 41 is provided with a pin shaft 43, the second joint seat 42 is penetrated by the pin shaft 43 and can rotate relative to the first joint seat 41 around the pin shaft 43 and can slide along the axial direction of the pin shaft 43, the first joint seat 41 is provided with a plurality of first teeth 44 in a circumferential direction, the second joint seat 42 is provided with a second tooth 45 which can mesh with the first tooth 44 to lock the position of the second joint seat 42 relative to the first joint seat 41, the second joint seat 42 is provided with a mounting groove 46, the groove bottom 46a of the mounting groove 46 is provided with a through hole 46b for the pin shaft 43 to pass through, one end of the pin shaft 43 is provided with an outer convex portion 47 protruding from its outer circumferential surface, and a spring 48 which is sleeved on the pin shaft 43 and can push the second joint seat 42 so that the second tooth 45 and the first tooth 44 remain meshed is provided between the outer convex portion 47 and the groove bottom 46a of the mounting groove 46.
[0008] The first joint seat 41 includes a seat body 411, a receiving groove 412 is provided on the seat body 411, the first tooth 44 is protruding along the circumferential direction and is arranged at the bottom of the receiving groove 412, the second joint seat 42 is provided with an extension section 421 extending into the receiving groove 412, a protruding protrusion 422 is provided on the outer side wall of the extension section 421, and the second tooth 45 is arranged at the end of the protrusion 422.
[0009] The protruding portion 422 is provided with a notch 423 , and the groove wall of the accommodating groove 412 is provided with a limiting block 413 which can extend into the notch 423 and abut against the side wall of the protruding portion 422 to limit the rotation angle of the second joint seat 42 .
[0010] The outer protrusion 47 is a baffle sleeved on the pin shaft 43, one end of the spring 48 abuts against the baffle, and the other end abuts against the bottom 46a of the mounting groove 46, and a rivet joint 43a is provided on the pin shaft 43 to prevent the baffle from falling out.
[0011] Each of the second teeth 45 has a first inclined surface 45 a and a second inclined surface 45 b connected to the top of the first inclined surface 45 a . The surface shape of the first teeth 44 matches that of the second teeth 45 .
[0012] A bedside fence comprises a guardrail frame 1 and a support assembly 2 connected to the lower end of the guardrail frame 1, wherein the support assembly 2 comprises a support rod 21 connected to the guardrail frame 1 and a support foot 22 arranged at the lower end of the support rod 21 and capable of being pressed by a mattress 100, the guardrail frame 1 is connected to a fence frame 3 which can be rotated and unfolded or rotated and folded relative to the guardrail frame 1, the fence frame 3 comprises an upper U-shaped rod 31 and a lower U-shaped rod 32, and a joint locking structure 4 as described above is provided between the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32 and the guardrail frame 1, the first joint seat 41 is provided on the guardrail frame 1, the second joint seat 42 is connected to the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32, and a transmission rod 34 hinged to the upper U-shaped rod 31 and the lower U-shaped rod 32 is also provided between the upper U-shaped rod 31 and the lower U-shaped rod 32.
[0013] The guardrail frame 1 includes a left vertical rod 11 and a right vertical rod 12 spaced apart from each other, a vertical connecting rod 13 is provided on the inner side of the left vertical rod 11 and the right vertical rod 12, a lower cross bar 14 connected to the left vertical rod 11 and the right vertical rod 12 is provided at the lower end thereof, the lower end of the connecting rod 13 is connected to the lower cross bar 14, an upper cross bar 15 capable of sliding up and down along the upper end of the connecting rod 13 is provided, a first locking device 16 for locking the two is provided between the upper cross bar 15 and the connecting rod 13, and the left vertical rod 11 and the right vertical rod 12 are fixedly connected to the upper end of the connecting rod 13 via a connecting plate 17 respectively.
[0014] There are two support rods 21 and two support feet 22, one of which is slidably connected to the left vertical rod 11, and the other is slidably connected to the right vertical rod 12. The support rod 21 is provided with a plurality of adjustment holes 51, and the lower cross bar 14 is provided with a second locking device 52 that can engage with the corresponding adjustment holes 51 to lock the height position of the guardrail frame 1 and the fence frame 3.
[0015] The upper U-shaped rod 31 and the lower U-shaped rod 32 are tubular structures, and a V-shaped spring piece 61 is provided in the open end 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32, and a locking column 62 is provided on the V-shaped spring piece 61. The second joint seat 42 is provided with a sleeve tube 424 that can be sleeved on the open end 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32, and a card hole 63 that can engage with the locking column 62 is opened on the sleeve tube 424.
[0016] Compared with the prior art, the utility model has the following advantages:
[0017] 1. When the joint locking structure of the utility model is locked, the second teeth on the second joint seat are meshed with the first teeth on the first joint seat, and the relative positions of the second joint seat and the first joint seat are locked. When the joint locking structure needs to be unlocked, the second joint seat only needs to be slid outward along the axial direction of the pin shaft. During the sliding process, the second teeth are separated from the first teeth and the spring is compressed. At this time, the second joint seat can be rotated. When the second joint seat is rotated to a suitable position, the second joint seat is released. The spring elastically recovers and pushes the second joint seat to slide and reset along the pin shaft. The second teeth are meshed with the first teeth again, so that the second joint seat and the first joint seat are locked again, and the spring maintains the locked state. Therefore, the entire joint locking structure is simple and compact, and the unlocking operation is also very convenient and quick.
[0018] 2. The bedside fence of the utility model includes a guardrail body and a support assembly. The support foot is pressed by the mattress so that the bedside fence is fixed on the bed. The enclosure frame is connected to the guardrail body. Infants and young children can be placed in the enclosure frame when sleeping, which can prevent adults from accidentally pressing on infants and young children when turning over in sleep, ensuring safety. In addition, the enclosure frame can be folded relative to the guardrail body, and can be folded close to the guardrail body when not in use to save space. In addition, the open ends of the upper U-shaped rod and the lower U-shaped rod of the fence frame are connected to the guardrail body through the aforementioned joint locking structure. When folding or unfolding the enclosure frame, it is only necessary to rotate the upper U-shaped rod or the lower U-shaped rod, which is very convenient and quick to operate.
[0019] 3. The joint locking structure and bedside frame of the utility model are simple in structure and easy to operate, and are suitable for popularization and application.
Brief Description of the Drawings
[0020] Figure 1 It is one of the three-dimensional diagrams of the utility model;
[0021] Figure 2 This is the second stereogram of the utility model;
[0022] Figure 3 This is one of the side views of the utility model;
[0023] Figure 4 This is the second side view of the utility model;
[0024] Figure 5 It is an exploded view of the utility model;
[0025] Figure 6 yes Figure 5 Magnified view at A in the middle;
[0026] Figure 7 It is one of the three-dimensional diagrams of the second joint seat of the utility model;
[0027] Figure 8 This is the second stereoscopic view of the second joint seat of the utility model;
[0028] Fig. 9 It is a three-dimensional diagram of the first joint seat of the utility model;
[0029] Fig.10 It is a partial cross-sectional view of the utility model. [Specific implementation method]
[0030] The utility model is further described below in conjunction with the accompanying drawings:
[0031] like Figures 5 to 10As shown, a joint locking structure 4 includes a first joint seat 41 and a second joint seat 42, the first joint seat 41 is provided with a pin shaft 43, the second joint seat 42 is penetrated by the pin shaft 43 and can rotate relative to the first joint seat 41 around the pin shaft 43 and can slide along the axial direction of the pin shaft 43, the first joint seat 41 is provided with a plurality of first teeth 44 in a circumferential direction, the second joint seat 42 is provided with a second tooth 45 which can mesh with the first tooth 44 to lock the position of the second joint seat 42 relative to the first joint seat 41, the second joint seat 42 is provided with a mounting groove 46, the groove bottom 46a of the mounting groove 46 is provided with a through hole 46b for the pin shaft 43 to pass through, one end of the pin shaft 43 is provided with an outer convex portion 47 protruding from its outer circumferential surface, and a spring 48 which is sleeved on the pin shaft 43 and can push the second joint seat 42 so that the second tooth 45 and the first tooth 44 remain meshed is provided between the outer convex portion 47 and the groove bottom 46a of the mounting groove 46. When the joint locking structure of this embodiment is locked, the second teeth 45 on the second joint seat 42 are meshed with the first teeth 44 on the first joint seat 41, and the relative positions of the second joint seat 42 and the first joint seat 41 are locked. When the joint locking structure needs to be unlocked, it is only necessary to pull the second joint seat 42 to slide axially outward along the pin shaft 43. During the sliding process, the second teeth 45 are disengaged from the first teeth 44 and the spring 48 is compressed. At this time, the second joint seat 42 can be rotated. When the second joint seat 42 is rotated to a suitable position, the second joint seat 42 is released, and the spring 48 elastically recovers and pushes the second joint seat 42 to slide back along the pin shaft 43. The second teeth 45 are meshed with the first teeth 44 again, so that the second joint seat 42 and the first joint seat 41 are locked again, and the spring 48 maintains the locked state. Therefore, the entire joint locking structure is simple and compact, and the position of the second joint seat 2 can be adjusted by only pulling and turning during operation, and the operation is also very convenient and quick.
[0032] like Figures 7 to 10 As shown, the first joint seat 41 comprises a seat body 411, a receiving groove 412 is provided on the seat body 411, the first teeth 44 are protrudingly arranged at the bottom of the receiving groove 412 along the circumferential direction, the second joint seat 42 is provided with an insertion section 421 extending into the receiving groove 412, a protruding protrusion 422 is provided on the outer side wall of the insertion section 421, and the second teeth 45 are arranged at the end of the protrusion 422. In this embodiment, the insertion section 421 is inserted into the receiving groove 412, so that the second joint seat 42 can rotate smoothly relative to the first joint seat 41.
[0033] like Figures 7 to 9As shown, the protrusion 422 is provided with a notch 423, and the groove wall of the accommodating groove 412 is provided with a limit block 413 that can extend into the notch 423 and abut against the side wall of the protrusion 422 to limit the rotation angle of the second joint seat 42. When the second joint seat 42 rotates to a certain angle, the limit block 413 will abut against the side wall of the protrusion 422 to prevent the second joint seat 42 from continuing to rotate, thereby limiting the rotation angle of the second joint seat 42.
[0034] like Figure 6 and Fig.10 As shown, the outer protrusion 47 is a baffle sleeved on the pin 43, one end of the spring 48 abuts against the baffle, and the other end abuts against the groove bottom 46a of the mounting groove 46, and the pin 43 is provided with a rivet joint 43a to prevent the baffle from coming out. When the second joint seat 42 is pulled outward, the groove bottom 46a of the mounting groove 46 cooperates with the baffle to compress the spring 48, and when the second joint seat 42 is rotated to a suitable position, the spring 48 pushes the groove bottom 46a of the mounting groove 46 during the resetting process, so that the second joint seat 42 slides and resets, thereby causing the second tooth 45 to mesh with the first tooth 44 again.
[0035] like Figure 7 As shown, each of the second teeth 45 has a first inclined surface 45a and a second inclined surface 45b connected to the top of the first inclined surface 45a, and the surface shape of the first teeth 44 is adapted to the second teeth 45. Therefore, when the second joint seat 42 needs to be rotated, it is no longer necessary to pull the second joint seat 42 outward, but the second joint seat 42 can be directly rotated relative to the first joint seat 41. During the rotation process, the surface of the first teeth 44 can push the first inclined surface 45a or the second inclined surface 45b, so that the second joint seat 42 moves axially along the pin 43 during the rotation process, making the rotation of the second joint seat 42 more convenient and quick. The unlocking operation of the entire joint locking structure is to directly pull the second joint seat 42 to rotate.
[0036] like Figures 1 to 10As shown, a bedside fence includes a guardrail frame 1 and a support assembly 2 connected to the lower end of the guardrail frame 1, the support assembly 2 includes a support rod 21 connected to the guardrail frame 1 and a support foot 22 arranged at the lower end of the support rod 21 and capable of being pressed by a mattress 100, the guardrail frame 1 is connected to a fence frame 3 which can be rotated and unfolded or rotated and folded relative to the guardrail frame 1, the fence frame 3 includes an upper U-shaped rod 31 and a lower U-shaped rod 32, and a joint locking structure 4 as described above is provided between the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32 and the guardrail frame 1, the first joint seat 41 is provided on the guardrail frame 1, the second joint seat 42 is connected to the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32, and a transmission rod 34 hinged to the upper U-shaped rod 31 and the lower U-shaped rod 32 is also provided between the upper U-shaped rod 31 and the lower U-shaped rod 32. When the bedside guardrail is in use, a cloth cover is first put on the guardrail body 1 and the surrounding frame 3. When an adult takes an infant to sleep, the infant can be placed in the surrounding frame 3, which can prevent the adult from accidentally pressing the infant when turning over during sleep, thereby ensuring safety. In addition, when the surrounding frame is not needed, the upper U-shaped rod 31 or the lower U-shaped rod 32 can be rotated upward, and the joint locking structure 4 is directly unlocked during the rotation process, and the transmission rod 34 drives the lower U-shaped rod 32 or the upper U-shaped rod 31 to move, so that the entire surrounding frame 3 is folded relative to the guardrail body 1, and the surrounding frame 3 can be folded close to the guardrail body 1 to save space.
[0037] like Figures 1 to 5 As shown, the guardrail frame 1 comprises a left vertical rod 11 and a right vertical rod 12 spaced apart from each other, a vertical connecting rod 13 is provided inside the left vertical rod 11 and the right vertical rod 12, a lower cross bar 14 connected to the left vertical rod 11 and the right vertical rod 12 is provided at the lower end thereof, the lower end of the connecting rod 13 is connected to the lower cross bar 14, an upper cross bar 15 which can slide up and down along the upper end of the connecting rod 13 is provided, a first locking device 16 for locking the two is provided between the upper cross bar 15 and the connecting rod 13, and the left vertical rod 11 and the right vertical rod 12 are fixedly connected to the upper end of the connecting rod 13 through a connecting plate 17, respectively. After unlocking the locking device 16, the upper cross bar 15 can be lowered, which is convenient for the user to carry the infant in the enclosure frame 3 out and to take care of the infant. The first locking device 16 in this embodiment can adopt a conventional engaging structure of a card hole and a card pin, for example, a card hole is provided on the connecting rod 13, and a sliding card pin that can engage with the card hole is provided in the upper cross bar 15, which will not be repeated here.
[0038] like Figures 1 to 5As shown, the support rod 21 and the support foot 22 are both two, one of which is slidably connected to the left vertical rod 11, and the other is slidably connected to the right vertical rod 12. The support rod 21 is provided with a plurality of adjustment holes 51, and the lower cross bar 14 is provided with a second locking device 52 that can engage with the corresponding adjustment holes 51 to lock the height position of the guardrail frame 1 and the fence frame 3. In actual use, the appropriate height of the guardrail frame 1 and the fence frame 3 can be adjusted according to the thickness of the mattress 100, so that the bedside fence can adapt to different occasions. The second locking device 52 can adopt a sliding bayonet structure, which is locked when the bayonet engages with the adjustment hole 51, and the height of the guardrail frame 1 and the fence frame 3 can be adjusted when the bayonet exits the adjustment hole 51.
[0039] like Fig.10 As shown, the upper U-shaped rod 31 and the lower U-shaped rod 32 are tubular structures, and the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32 are provided with V-shaped spring pieces 61, and the V-shaped spring pieces 61 are provided with locking columns 62. The second joint seat 42 is provided with a sleeve pipe 424 that can be sleeved on the open ends 33 of the upper U-shaped rod 31 and the lower U-shaped rod 32, and the sleeve pipe 424 is provided with a clamping hole 63 that can be engaged with the locking column 62. When the infant is older, the surrounding frame body 3 can also be disassembled from the guardrail body 1. When disassembling, it is only necessary to press the locking column 62 to make the locking column 62 withdraw from the clamping hole 63, and then pull out the upper U-shaped rod 31 and the lower U-shaped rod 32, which is also very convenient to operate.
[0040] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.
Claims
1. A joint locking structure (4), characterized in that: The invention comprises a first joint seat (41) and a second joint seat (42), wherein the first joint seat (41) is provided with a pin shaft (43), the second joint seat (42) is inserted into the pin shaft (43) and can rotate relative to the first joint seat (41) around the pin shaft (43) and can slide along the axial direction of the pin shaft (43), the first joint seat (41) is provided with a plurality of first teeth (44) along the circumferential direction, and the second joint seat (42) is provided with a plurality of teeth (44) that can mesh with the first teeth (44) to lock the second joint seat (42) relative to the first joint seat (41). The second joint seat (42) is provided with a mounting groove (46), the bottom (46a) of the mounting groove (46) is provided with a through hole (46b) for the pin shaft (43) to pass through, one end of the pin shaft (43) is provided with an outer convex portion (47) protruding from its outer peripheral surface, and a spring (48) is provided between the outer convex portion (47) and the bottom (46a) of the mounting groove (46), which is sleeved on the pin shaft (43) and can push the second joint seat (42) to keep the second tooth (45) engaged with the first tooth (44).
2. The joint locking structure (4) according to claim 1, characterized in that: The first joint seat (41) comprises a seat body (411), a receiving groove (412) is provided on the seat body (411), the first tooth (44) is protruding along the circumferential direction and arranged at the bottom of the receiving groove (412), the second joint seat (42) is provided with an extending section (421) extending into the receiving groove (412), a protruding protrusion (422) is provided on the outer side wall of the extending section (421), and the second tooth (45) is arranged at the end of the protrusion (422).
3. The joint locking structure (4) according to claim 2, characterized in that: The protruding portion (422) is provided with a notch (423), and the groove wall of the accommodating groove (412) is provided with a limiting block (413) which can extend into the notch (423) and abut against the side wall of the protruding portion (422) to limit the rotation angle of the second joint seat (42).
4. The joint locking structure (4) according to claim 1, characterized in that: The outer protrusion (47) is a baffle sleeved on the pin shaft (43); one end of the spring (48) abuts against the baffle, and the other end abuts against the bottom (46a) of the mounting groove (46); and a rivet joint (43a) is provided on the pin shaft (43) to prevent the baffle from falling out.
5. The joint locking structure (4) according to claim 1, characterized in that: Each of the second teeth (45) has a first inclined surface (45a) and a second inclined surface (45b) connected to the top of the first inclined surface (45a), and the surface shape of the first teeth (44) is adapted to the second teeth (45).
6. A bedside fence, characterized in that: The invention comprises a guardrail frame (1) and a support assembly (2) connected to the lower end of the guardrail frame (1), wherein the support assembly (2) comprises a support rod (21) connected to the guardrail frame (1) and a support foot (22) arranged at the lower end of the support rod (21) and capable of being pressed by a mattress (100), wherein the guardrail frame (1) is connected to a fence frame (3) capable of being rotated and unfolded or rotated and folded relative to the fence frame (3), wherein the fence frame (3) comprises an upper U-shaped rod (31) and a lower U-shaped rod (32), wherein the upper U-shaped rod (31) and the lower U-shaped rod (32) are respectively A joint locking structure (4) as claimed in any one of claims 1 to 5 is provided between the open ends (33) of the U-shaped rod (31) and the lower U-shaped rod (32) and the guardrail frame (1), the first joint seat (41) is arranged on the guardrail frame (1), the second joint seat (42) is connected to the open ends (33) of the upper U-shaped rod (31) and the lower U-shaped rod (32), and a transmission rod (34) hinged to the upper U-shaped rod (31) and the lower U-shaped rod (32) is also provided between the upper U-shaped rod (31) and the lower U-shaped rod (32).
7. The bedside fence according to claim 6, characterized in that: The guardrail frame (1) comprises a left vertical rod (11) and a right vertical rod (12) spaced apart from each other, a vertical connecting rod (13) is provided inside the left vertical rod (11) and the right vertical rod (12), a lower cross rod (14) connected to the left vertical rod (11) and the right vertical rod (12) is provided at the lower end of the left vertical rod (11) and the right vertical rod (12), the lower end of the connecting rod (13) is connected to the lower cross rod (14), the upper end of the connecting rod (13) is provided with an upper cross rod (15) which can slide up and down along the connecting rod (13), a first locking device (16) for locking the two is provided between the upper cross rod (15) and the connecting rod (13), and the left vertical rod (11) and the right vertical rod (12) are fixedly connected to the upper end of the connecting rod (13) through a connecting plate (17) respectively.
8. The bedside guard according to claim 7, characterized in that: The supporting rods (21) and supporting feet (22) are both in the form of two pieces, one of which is slidably connected to the left vertical rod (11), and the other is slidably connected to the right vertical rod (12). The supporting rod (21) is provided with a plurality of adjustment holes (51), and the lower cross bar (14) is provided with a second locking device (52) which can engage with the corresponding adjustment holes (51) to lock the height position of the guardrail frame (1) and the fence frame (3).
9. The bedside guard according to claim 6, characterized in that: The upper U-shaped rod (31) and the lower U-shaped rod (32) are tubular structures, and V-shaped spring pieces (61) are arranged in the open ends (33) of the upper U-shaped rod (31) and the lower U-shaped rod (32), and a locking column (62) is arranged on the V-shaped spring piece (61), and a sleeve tube (424) capable of being sleeved on the open ends (33) of the upper U-shaped rod (31) and the lower U-shaped rod (32) is arranged on the second joint seat (42), and a clamping hole (63) capable of being engaged with the locking column (62) is arranged on the sleeve tube (424).