A sliding connection device
By introducing a sliding connection device into the telescopic bed frame, the swing state of the swing frame is controlled, solving the problem of frictional resistance when the leg telescopic frame moves, and achieving smooth sliding of the auxiliary frame on the main frame.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG KANGTAI INDAL
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-31
AI Technical Summary
In existing telescopic bed frames, the frictional resistance is relatively large when the leg extension frame moves relative to the bed frame support frame.
A sliding connection device was designed, comprising a movable frame, a swing frame, and a swing state control mechanism. By adjusting the swing state of the swing frame, the frictional resistance when the auxiliary frame slides relative to the main frame is reduced.
By controlling the swing state of the swing frame, the frictional resistance of the auxiliary frame during the forward and backward sliding process is reduced, enriching the design ideas of the bed frame.
Smart Images
Figure CN224572463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to connecting device technology, specifically, to a sliding connecting device. Background Technology
[0002] Patent application CN203988851U discloses a retractable massage bed frame, which includes a leg extension frame that can move relative to the bed frame support to adjust the length of the bed frame. A shortcoming of the aforementioned patent application is that the leg extension frame experiences significant frictional resistance when moving relative to the bed frame support. Therefore, this application is filed. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a sliding connection device that can be applied to telescopic bed frames to solve the problem of large frictional resistance when the leg telescopic frame moves relative to the bed support frame in existing bed frames.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a sliding connection device suitable for installation between a main frame and an auxiliary frame, enabling the auxiliary frame to move relative to the main frame in the front-back direction. The sliding connection device comprises: two movable frames spaced apart in the left-right direction and configured to move relative to the auxiliary frame in the front-back direction; two swing frames spaced apart in the front-back direction, with both sides of each swing frame pivotally connected to the movable frame and the main frame respectively; the two swing frames swing synchronously under control, and can sequentially switch between a forward tilting state, a longitudinally extending state, and a backward tilting state; and a swing state control mechanism installed on the movable frames, capable of switching between a swing-allowed state and a swing-impeded state. When the swing state control mechanism is in the swing-allowed state, it allows the two swing frames to swing synchronously; when it is in the swing-impeded state, it impedes the synchronous swing of the two swing frames.
[0005] Preferably, the swing state control mechanism includes two adjustment components, each corresponding to one of the two swing frames; wherein the adjustment component located at the front is controlled by a front trigger and switches between a first state that allows the swing frame located at the front to swing forward relative to the auxiliary frame and a second state that prevents the swing frame located at the front from swinging forward relative to the auxiliary frame; wherein the adjustment component located at the rear is controlled by a rear trigger and switches between a first state that allows the swing frame located at the rear to swing backward relative to the auxiliary frame and a second state that prevents the swing frame located at the rear from swinging backward relative to the auxiliary frame.
[0006] Preferably, the front trigger and the rear trigger are located on the auxiliary frame.
[0007] Preferably, both of the adjustment components include a movable member and an elastic member; wherein the movable member is rotatable relative to the movable frame to switch between a position that hinders the swing of the swing frame and a position that allows the swing of the swing frame to swing; wherein the elastic member applies an elastic force to the movable member to maintain its tendency to rotate toward the position that hinders the swing of the swing frame.
[0008] Preferably, two sets of roller assemblies are provided between the movable frame and the auxiliary frame to guide the movable frame to move relative to the auxiliary frame in the front-back direction.
[0009] Preferably, two sets of roller assemblies are provided between the movable frame and the auxiliary frame to guide the movable frame to move relative to the auxiliary frame in the front-back direction; the two roller assemblies correspond to the two adjustment assemblies respectively, and the elastic element of each adjustment assembly is disposed between the movable member and the corresponding roller assembly.
[0010] Preferably, the swing frame includes two swing rods spaced apart from each other on the left and right, and a connecting rod located between the two swing rods; the two sides of the swing rods are respectively pivotally connected to the movable frame and the main frame.
[0011] Preferably, the moving member has an obstruction portion, and the swing frame has an obstructed portion, such that when the obstruction portion and the obstructed portion are in contact, the swing frame cannot rotate in a predetermined direction.
[0012] Preferably, the elastic element is a telescopic spring or a torsion spring.
[0013] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects: The sliding connection device of this application is suitable for installation between the main frame and the auxiliary frame of the telescopic bed frame, and enables the auxiliary frame to move relative to the main frame in the front-back direction. The swing frame of the sliding connection device is controlled by the swing state control mechanism to switch the swing state of the swing frame, thereby controlling whether the swing frame can swing. By adjusting the swing state of the swing frame, the gap between the auxiliary frame and the main frame in the vertical direction can be adjusted, which helps to reduce the frictional resistance experienced by the auxiliary frame during the front-back sliding process. The solution of this application enriches the design ideas of the bed frame. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0015] Figure 1 and Figure 2 Schematic diagrams of an embodiment of a retractable bed frame are shown from different perspectives;
[0016] Figure 3 A first exploded view of an embodiment of a retractable bed frame is shown;
[0017] Figure 4 A second exploded view of an embodiment of a retractable bed frame is shown;
[0018] Figure 5 A third exploded view of an embodiment of a retractable bed frame is shown;
[0019] Figure 6 and Figure 7 Schematic diagrams of the sliding connection device of a retractable bed frame according to different perspectives are shown.
[0020] Figure 8 A first exploded view of a sliding connection device for a retractable bed frame according to an embodiment is shown;
[0021] Figure 9 A second exploded view of a sliding connection device for a retractable bed frame according to one embodiment is shown;
[0022] Figure 10 A diagram illustrating the front-to-back movement of the auxiliary frame relative to the main frame is shown in one embodiment of a retractable bed frame.
[0023] Figure 11 A diagram illustrating the positional changes of the rotating component of a retractable bed frame according to an embodiment is provided.
[0024] Figure 12 and Figure 13 Schematic diagrams of the moving component of one embodiment are shown from different perspectives;
[0025] Figure 14 and Figure 15 Schematic diagrams of the moving part and the elastic part of another embodiment are shown from different perspectives.
[0026] Figure label:
[0027] Main frame 1, first frame 1A, second frame 1B, auxiliary frame 2, sliding connection device 3, pad 4. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0030] Combination Figures 1 to 14 In one embodiment, the retractable bed frame of this application includes a main frame 1, an auxiliary frame 2, a sliding connecting device 3, and a mattress 4. The sliding connecting device 3 is located between the main frame 1 and the auxiliary frame 2, allowing the auxiliary frame 2 to move relative to the main frame 1 in the front-rear direction (see reference). Figure 10 The following will be explained in detail with reference to the illustrations. For ease of explanation, the X direction in the illustrations refers to the direction of the bed frame from left to right, the Y direction refers to the direction of the bed frame from front to back, and the Z direction refers to the direction of the bed frame from bottom to top.
[0031] [Main Frame] Combination Figures 1 to 3 The main frame 1 includes a first frame 1A and a second frame 1B.
[0032] The first frame 1A is the main structure of the main frame 1, and its bottom is equipped with support feet. The first frame 1A has a mounting opening G, and a rack P is mounted on it. The massage mechanism (not shown) can pass through the mounting opening G, allowing the traveling gears on both sides of the massage mechanism to mesh with the rack P. When the traveling gears rotate, the massage mechanism can move in the forward and backward direction. The massage mechanism may be, for example, the massage mechanism disclosed in patent application CN202510510082.2, but it is not the focus of this application and will not be described further.
[0033] The second frame 1B is installed at the upper middle position of the first frame 1A. The second frame 1B includes a cuboid frame and connecting rods located on the left and right sides of the frame. The second frame 1B is connected to the first frame 1A through the connecting rods. The second frame 1B and the first frame 1A cooperate to support the user's limbs.
[0034] A fitting block (not shown) may be provided at the position of the mounting port G. The fitting block can be detachably fixed to the first frame 1A by screws. The fitting block is used to cover the mounting port G.
[0035] A pad 4 is installed on the main frame 1. The pad 4 has a relief groove 41 to provide space for the swing frame 32 to swing. The pad 4 supports the user's limbs (such as the head and upper body).
[0036] [Auxiliary Frame] The auxiliary frame 2 assists the main frame 1 in supporting the user. The auxiliary frame 2 is connected to the main frame 1 via a sliding connection device 3, allowing it to move relative to the main frame 1 in the front-back direction. A second pad supporting the user's limbs (lower body) can be installed on the auxiliary frame 2. Combined with... Figure 4The auxiliary frame 2 includes an upper support 21 located on the upper side and a leg support 22 located on the front side. The sliding connection device 3 is located between the main frame 1 and the upper support 21. Sliding grooves 23 are provided on the left and right sides of the upper support 21.
[0037] [Sliding Connection Device] The sliding connection device 3 is located between the main frame 1 and the auxiliary frame 2, allowing the auxiliary frame 2 to move relative to the main frame 1 in the front-back direction. In this embodiment, the sliding connection device 3 includes a movable frame 31, a swing frame 32, a swing state control mechanism 33 (including two adjustment components 34), and a roller assembly 35.
[0038] The movable frame 31 has an outer contour that is roughly rectangular. Two movable frames 31 are spaced apart in the left-right direction and are configured to move relative to the auxiliary frame 2 in the front-back direction. Specifically, the front and rear sides of the two movable frames 31 are supported in the slide grooves 23 of the auxiliary frame 2 by roller assemblies 35, thereby allowing the movable frames 31 to move relative to the auxiliary frame 2 in the front-back direction. The roller assembly 35 includes rollers 35A and a rotating shaft 35B; rollers 35A are disposed in the slide grooves 23 and mounted on the rotating shaft 35B. Through this installation method, the movable frames 31 are configured to move relative to the auxiliary frame 2 in the front-back direction.
[0039] The two swing frames 32 are spaced apart in the front-to-back direction. Both sides of each swing frame 32 are pivotally connected to the movable frame 31 and the main frame 1, respectively. The swing frames 32 swing synchronously in a controlled manner, and can sequentially change between a forward tilting state, a longitudinally extended state, and a backward tilting state. Each swing frame 32 includes two swing rods 32A spaced apart to the left and right, and a connecting rod 32B located between the two swing rods 32A. Both sides of the swing rods 32A are pivotally connected to the movable frame 31 and the main frame 1, respectively. A fitting component 32C is provided on the upper side of each swing rod 32A. The fitting component 32C can be fixed to the upper side of the swing rod 32A by a pin. The fitting component 32C is used to cooperate with the adjustment assembly 34 to control whether the swing frame 32 can swing.
[0040] The swing state control mechanism 33 is installed on the movable frame 31 and can switch between the swing-allowed state and the swing-obstructed state. When the swing state control mechanism 33 is in the swing-allowed state, it allows the two swing frames 32 to swing synchronously. When it is in the swing-obstructed state, it obstructs the two swing frames 32 from swinging synchronously.
[0041] Specifically, combined Figure 10When the auxiliary frame 2 moves from front to back relative to the main frame 1, the front side of the auxiliary frame 2 passes through the first displacement segment L1, the second displacement segment L2 and the third displacement segment L3 in sequence. The swing state control mechanism 33 is configured such that: during the process of the auxiliary frame 2 moving from front to back through the first displacement segment L1, it is in a swing-allowed state, so that the two swing frames 32 can synchronously change from a forward tilting state to a longitudinally extended state; during the process of the auxiliary frame 2 moving from front to back through the second displacement segment L2, it is in a swing-resistance state, so that the two swing frames 32 can remain in a longitudinally extended state. At this time, there is a set gap H between the lower side of the auxiliary frame 2 and the main frame 1, ensuring that when the auxiliary frame 2 moves back and forth relative to the main frame 1, the auxiliary frame 2 will not be obstructed by the main frame 1 or the pad 4 installed on the main frame 1, which helps to reduce the frictional resistance experienced by the auxiliary frame during the back and forth sliding process; during the process of the auxiliary frame 2 moving from front to back through the third displacement segment L3, it is in a swing-allowed state, so that the two swing frames 32 can synchronously change from a longitudinally extended state to a backward tilting state.
[0042] In this embodiment, the swing state control mechanism 33 is controlled by the front trigger T1 and the rear trigger T2 to switch between the swing-allowed state and the swing-resisting state. Specifically, in combination with Figure 10 The rear trigger T2 is configured to allow the swing state control mechanism 33 to switch between a swing-allowed state and a swing-resistance state when it moves to the junction of the first displacement segment L1 and the second displacement segment L2 on the front side of the auxiliary frame 2. The front trigger T1 is configured to allow the swing state control mechanism 33 to switch between a swing-allowed state and a swing-resistance state when it moves to the junction of the second displacement segment L2 and the third displacement segment L3 on the front side of the auxiliary frame 2.
[0043] In this embodiment, the swing state control mechanism 33 includes two adjustment components 34, corresponding to the two swing frames 32 respectively. Figure 10 The adjustment component 34 located at the front is controlled by the front trigger T1, and switches between a first state that allows the swing frame 32 located at the front to swing forward relative to the auxiliary frame 2, and a second state that prevents the swing frame 32 located at the front from swinging forward relative to the auxiliary frame 2 (corresponding to...). Figure 10 (Middle and bottom diagrams); The adjustment component 34 located at the rear is controlled by the rear trigger T2, switching between a first state that allows the rear swing frame 32 to swing backward relative to the auxiliary frame 2, and a second state that prevents the rear swing frame 32 from swinging backward relative to the auxiliary frame 2 (corresponding to...). Figure 10 (The middle and top images).
[0044] In this embodiment, both adjustment components 34 include a movable element 34A, an elastic element 34B, and a shaft support 34C. The movable element 34A is mounted on the movable frame 31 via the shaft support 34C, thereby allowing the movable element 34A to rotate relative to the movable frame 31, switching between a position that hinders the swing of the swing frame 32 and a position that allows the swing of the swing frame 32 to swing. Figure 12 and Figure 13 The moving part 34A has an obstruction part G11, a pressure-bearing part G12, and a connecting part G13, which are combined Figure 11 The mating part 32C has an obstruction portion G21. When the obstruction portion G11 is in contact with the obstruction portion G21, it will obstruct the rotation of the mating part 32C, preventing the swing frame 32 from rotating in the predetermined direction. Figure 11 To further explain how the swing frame 32 located on the front side is controlled by the adjustment assembly 34 and the front trigger member T1, when the pressure-receiving part G12 of the moving member 34A of the adjustment assembly 34 located on the front side is pressed by the front trigger member T1, the moving member 34A rotates from a position that hinders the swing of the swing frame 32 to a position that allows the swing frame 32 to swing (in Figure 11 (Rotating counterclockwise from a viewing angle), the obstructing part G11 separates from the obstructed part G21. At this time, the swing frame 32 located on the front side can swing forward relative to the auxiliary frame 2. The elastic member 34B applies an elastic force to the moving member 34A to maintain its tendency to rotate toward the position that obstructs the swing frame 32 (in... Figure 11 (The rotation tends to be clockwise from the viewing angle). In this embodiment, the elastic element 34B is a telescopic spring, and the elastic element 34B is disposed between the joint portion G13 of the moving element 34A and the corresponding roller assembly 35's pivot 35B (the elastic element 34B may be provided with a hook portion that hooks onto the pivot 35B, not shown in the figure). For the specific method of how the swing frame 32 located on the rear side is controlled by the corresponding adjustment assembly 34 and the rear trigger T2, please refer to [reference needed]. Figure 11 This is consistent with the previous explanation and will not be repeated here. Additionally, it should be noted that, in conjunction with... Figure 11 It can be understood that the moving part 34A of the adjustment component 34 located on the front side does not prevent the swing frame 32 located on the front side from swinging backward relative to the auxiliary frame 2. Correspondingly, the moving part 34A of the adjustment component 34 located on the rear side does not prevent the swing frame 32 located on the rear side from swinging forward relative to the auxiliary frame 2.
[0045] [Variant Embodiments] The above is one embodiment of the bed frame described in this application. It should be understood that other variations of this application are also possible. In another embodiment, the rollers of the roller assembly 35 can be replaced with sliders. Figure 14 and Figure 15In another embodiment, the elastic element 34B can be adjusted to a torsion spring, which is sleeved on the shaft support 34C, with the two torsion arms respectively abutting against the moving element 34A and the rotating shaft 35B. In the previous embodiment, the front trigger element T1 and the rear trigger element T2 are mechanical triggering structures. However, it should be understood that under the concept of this utility model, the swing frame 32 can also be adjusted to swing under electrical signal control (that is, an electrical control structure can be set to control the swing frame 32 to swing). Correspondingly, the front trigger element T1 and the rear trigger element T2 can be adjusted to trigger elements that can trigger the operation of the electrical control structure, such as the common electromagnetic induction structure.
[0046] This application also provides a massage bed, which includes the aforementioned bed frame. The main frame 1 and the auxiliary frame 2 can be equipped with massage mechanisms.
[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A sliding connection device adapted to be installed between a main frame (1) and a sub frame (2) and enabling the sub frame (2) to move in a front and back direction with respect to the main frame (1), characterized in that, The sliding connection device includes: Two movable frames (31) are spaced apart in the left-right direction and are configured to move relative to the auxiliary frame (2) in the front-back direction; Two swing frames (32) are spaced apart in the front-to-back direction, and both sides of the two swing frames (32) are respectively pivotally connected to the movable frame (31) and the main frame (1). The two swing frames (32) swing synchronously in a controlled manner, and can change sequentially between a forward tilting state, a longitudinal extension state and a backward tilting state. A swing state control mechanism (33) is installed on the movable frame (31) and can switch between a swing-allowed state and a swing-impeded state. When the swing state control mechanism (33) is in the swing-allowed state, it allows the two swing frames (32) to swing synchronously. When it is in the swing-impeded state, it prevents the two swing frames (32) from swinging synchronously.
2. The sliding connection device according to claim 1, characterized in that, The swing state control mechanism (33) includes two adjustment components (34), and the two adjustment components (34) correspond to the two swing frames (32) respectively; The adjustment component (34) located at the front is controlled by the front trigger (T1) and switches between a first state that allows the swing frame (32) located at the front to swing forward relative to the auxiliary frame (2) and a second state that prevents the swing frame (32) located at the front from swinging forward relative to the auxiliary frame (2). The adjustment component (34) located at the rear is controlled by the rear trigger (T2) and switches between a first state that allows the swing frame (32) located at the rear to swing backward relative to the auxiliary frame (2) and a second state that prevents the swing frame (32) located at the rear from swinging backward relative to the auxiliary frame (2).
3. The sliding connection device according to claim 2, wherein The front trigger (T1) and the rear trigger (T2) are located on the auxiliary frame (2).
4. The sliding connection device according to claim 2, characterized in that, in, Both of the aforementioned adjustment components (34) include a movable element (34A) and an elastic element (34B); The movable member (34A) is rotatable relative to the movable frame (31) to switch between a position that hinders the swing of the swing frame (32) and a position that allows the swing frame (32) to swing. The elastic element (34B) applies an elastic force to the moving element (34A) to maintain its tendency to rotate toward a position that hinders the swing of the swing frame (32).
5. The slip joint device of claim 2, wherein, Two sets of roller assemblies (35) are provided between the movable frame (31) and the auxiliary frame (2) to guide the movable frame (31) to move relative to the auxiliary frame (2) in the front-back direction.
6. The slip joint device of claim 4, wherein, Two sets of roller assemblies (35) are provided between the movable frame (31) and the auxiliary frame (2) to guide the movable frame (31) to move relative to the auxiliary frame (2) in the front-back direction; the two roller assemblies (35) correspond to the two adjustment assemblies (34) respectively, and the elastic element (34B) of each adjustment assembly (34) is disposed between the movable element (34A) and the corresponding roller assembly (35).
7. The slip joint device of claim 1, wherein, The swing frame (32) includes two swing rods (32A) spaced apart on the left and right, and a connecting rod (32B) located between the two swing rods (32A); the two sides of the swing rods (32A) are respectively pivotally connected to the movable frame (31) and the main frame (1).
8. The slip joint device of claim 4, wherein, The moving member (34A) has an obstruction part (G11), and the swing frame (32) has an obstructed part (G21). When the obstruction part (G11) and the obstructed part (G21) are in contact, the swing frame (32) cannot rotate in a predetermined direction.
9. The slip joint device of claim 4, wherein, The elastic element (34B) is a telescopic spring or a torsion spring.