Combined student bed with safety linkage guard mechanism

Abstract

The application discloses a combined student bed with a safety linkage protection mechanism, which comprises a bed body assembly and a staircase assembly connected to one side of the bed body assembly, wherein the staircase assembly comprises two hollow vertical cylinders arranged in parallel and a plurality of tread plates arranged at intervals between the two vertical cylinders. A rotating rod is rotatably arranged in each vertical cylinder through an upper elastic rotating seat and a lower elastic rotating seat, the rotating rod is provided with a handle and a plurality of supporting blocks corresponding to the tread plates, and the vertical cylinder is provided with a first turning port and a second turning port for the handle and the supporting blocks to extend out. When the handle is rotated, the rotating rod drives the supporting blocks to synchronously rotate into the lower part of the tread plate to form auxiliary support; after external force is removed, the rotating rod is reset under the action of the elastic rotating seat, so that the supporting blocks rotate away from the tread plate. The vertical cylinder is connected with the bed body assembly through a first gasket and a first fastening bolt, and the tread plate is connected with the vertical cylinder through a second gasket and a second fastening bolt. The application can link and support a plurality of tread plates, improve the bearing stability of the staircase assembly and facilitate combined installation.

Description

Technical Field

[0001] This invention relates to the field of student bed technology, and specifically to a modular student bed with a safety linkage protection mechanism. Background Technology

[0002] Modular student beds typically consist of a bed frame and a staircase. The staircase usually includes two vertical bars and multiple treads positioned between them. Users reach the upper bunk by stepping on each tread.

[0003] Existing stair treads are typically fixed to vertical bars using bolts, connectors, or welded structures. When users climb, the treads are repeatedly subjected to downward stomping loads, and the connections at the tread ends may loosen over time, affecting the tread's stability. To improve the load-bearing capacity of the treads, fixed supports can be installed under each tread. However, these fixed supports, always positioned under the treads and in a supporting state, are susceptible to fatigue, deformation, or decreased support performance due to the treads' own weight, daily vibrations, and repeated stomping loads and impacts. Furthermore, with separate fixed supports for each tread, the support positions cannot be adjusted according to the staircase's usage. Therefore, a modular student bed is needed that can provide coordinated auxiliary support for multiple treads during user climbing and automatically retract its support position after use. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the stair treads of existing modular student beds mainly rely on the end connection structure to bear the stepping load. When fixed support members are set under the treads, the fixed support members are in a supporting state for a long time, and are prone to fatigue or deformation due to long-term contact, vibration and repeated stress. Moreover, multiple fixed support members cannot change their support positions synchronously according to the usage of the stairs.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a combined student bed with a safety linkage protection mechanism, including a bed frame assembly and a stair assembly connected to one side of the bed frame assembly, wherein the stair assembly includes two parallel vertical tubes and a plurality of treads arranged vertically at intervals between the two vertical tubes; Each of the vertical cylinders is provided with an upper elastic rotating seat, a lower elastic rotating seat, and a rotating rod rotatably connected between the two. The rotating rod is provided with a handle and multiple support blocks corresponding to the pedals. The vertical cylinder has a first turning port for the handle to extend out and a plurality of second turning ports for the plurality of support blocks to extend out respectively, and each of the second turning ports is located below the corresponding pedal; The grip can drive the rotating rod to rotate, so that multiple support blocks can simultaneously rotate into the area below the corresponding pedal and form auxiliary support; the upper elastic rotating seat and the lower elastic rotating seat are used to drive the rotating rod to elastically reset, so that multiple support blocks can simultaneously rotate away from the corresponding pedal.

[0006] Furthermore, each of the vertical cylinders has a through-hole at its top, and a first pad is provided at the location of the positioning hole on the vertical cylinder. A first fastening bolt is provided through the first pad and the positioning hole, and the first fastening bolt is connected to the edge of the bed assembly after passing through the first pad and the positioning hole.

[0007] Furthermore, the side of the first pad facing the vertical cylinder is a curved surface adapted to the outer circumferential surface of the vertical cylinder, and the side of the first pad facing away from the vertical cylinder is a flat surface.

[0008] Furthermore, a blind hole is provided above each of the second steering ports, and a second pad and a second fastening bolt are provided at both ends of each pedal. The second fastening bolt passes through the corresponding second pad and is connected to the corresponding blind hole to fix the pedal between the two vertical cylinders.

[0009] Furthermore, the side of the second pad facing the vertical cylinder is a curved surface adapted to the outer circumferential surface of the vertical cylinder, and the side of the second pad facing away from the vertical cylinder is a flat surface.

[0010] Furthermore, the first turning port is opened on the side of the two vertical cylinders that are far apart from each other, and a plurality of second turning ports are opened on the side of the two vertical cylinders that are close to each other. Both the first turning port and the second turning port extend circumferentially along the vertical cylinders.

[0011] Furthermore, the first steering port allows the grip to rotate 90° with the rotating rod, and the second steering port allows the support block to rotate 90° with the rotating rod.

[0012] Furthermore, the upper elastic rotating seat and the lower elastic rotating seat are respectively fixedly installed at the upper and lower ends inside the vertical cylinder, and the rotating rod extends along the axial direction of the vertical cylinder and is coaxially installed with the vertical cylinder.

[0013] Furthermore, multiple support blocks are spaced apart along the axial direction of the rotating rod, and a support block is respectively provided below each end of each pedal; the support block has an auxiliary support state in which it rotates into the underside of the pedal and contacts the lower surface of the pedal, and a reset state in which it rotates away from the pedal and disengages from the lower surface of the pedal.

[0014] Compared with the prior art, the present invention has the following beneficial effects.

[0015] This invention features rotating rods installed within two hollow vertical cylinders, each equipped with a handle and multiple support blocks corresponding to the footboards. When climbing, the user rotates the handle, causing the rotating rod to simultaneously rotate multiple support blocks on the same side under each footboard, allowing the fixed connection structure at the footboard end and the support blocks beneath the footboard to share the stepping load. After use and removal of the external force applied to the handle, the rotating rod returns to its original position under the action of the upper and lower elastic rotating seats, causing the multiple support blocks to simultaneously rotate away from the footboard. The support blocks do not need to remain in the supporting position under the footboard at all times, reducing the time they are subjected to the footboard's weight, daily vibration, and repeated loads. Furthermore, one handle can control multiple support blocks on the same side, eliminating the need to operate the support components under each footboard individually. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a combined student bed with a safety linkage protection mechanism according to the present invention; Figure 2 This is a schematic diagram of the staircase component in the present invention; Figure 3 This is a structural schematic diagram of the vertical cylinder and its connection with the bed frame assembly and the pedal in this invention; Figure 4 This is a schematic diagram of the structure of the rotating rod, grip, and multiple support blocks in this invention; Figure 5 This is a schematic diagram of the pedal and its two-end connection structure in this invention; Figure 6 This is a partial structural diagram of the support block in the present invention when it is rotated away from below the pedal and in a non-supported state; Figure 7 This is a partial structural diagram of the support block when it is moved under the pedal and in an auxiliary support state in this invention.

[0017] In the diagram: 1. Staircase assembly; 2. Bed frame assembly; 101. Vertical cylinder; 102. Tread; 1011. First turning port; 1012. Second turning port; 1013. Blind hole; 1014. Positioning hole; 1015. First pad; 1016. First fastening bolt; 1017. Upper elastic rotating seat; 1018. Lower elastic rotating seat; 1019. Rotating rod; 1021. Second pad; 1022. Second fastening bolt; 120. Handle; 121. Support block. Detailed Implementation

[0018] like Figure 1-7As shown, this embodiment provides a modular student bed with a safety linkage protection mechanism. The student bed includes a staircase assembly 1 and a bed frame assembly 2. The bed frame assembly 2 forms the upper bunk and its basic load-bearing structure, while the staircase assembly 1 is located on one side of the bed frame assembly 2 for users to get in and out of the bed. The staircase assembly 1 and the bed frame assembly 2 are manufactured separately and then assembled. This facilitates transportation and on-site assembly, and also allows for easy disassembly when the staircase assembly 1 needs inspection or replacement.

[0019] The staircase assembly 1 includes two parallel vertical cylinders 101 and multiple treads 102. The two vertical cylinders 101 are arranged vertically and spaced apart horizontally. The multiple treads 102 are arranged sequentially along the height of the vertical cylinders 101, and each tread 102 is laterally connected between the two vertical cylinders 101. When a user climbs, their feet step on the treads 102 at different heights in sequence. The two vertical cylinders 101 bear the load transmitted by the treads 102 and provide vertical support for the entire staircase assembly 1.

[0020] The vertical cylinder 101 is a hollow tubular structure. This hollow structure serves two purposes: firstly, it meets the basic support requirements of the staircase assembly 1; secondly, it creates an installation space within the vertical cylinder 101 to accommodate the upper elastic rotating seat 1017, the lower elastic rotating seat 1018, the rotating rod 1019, and the inner connecting portion of the support block 121. The vertical cylinder 101 is preferably made of a circular metal tube, and the treads 102 can be made of metal plates, metal profiles, or strip-shaped footrests formed by bending metal plates. The actual dimensions can be determined based on the height of the bed assembly 2, the number of treads, and the usage requirements.

[0021] Each vertical cylinder 101 has a through-hole 1014 at its top. A connection position for the first fastening bolt 1016 is pre-drilled at the edge of the bed assembly 2 near the edge of the stair assembly 1. When installing the stair assembly 1, first bring the two vertical cylinders 101 close to the edge of the bed assembly 2, aligning the positioning holes 1014 with the connection positions on the bed assembly 2, and then complete the connection using the first fastening bolt 1016. The first fastening bolt 1016 passes through the first pad 1015 and the positioning hole 1014 sequentially, and is screwed into the edge of the bed assembly 2. After the first fastening bolt 1016 is tightened, the upper part of the vertical cylinder 101 is confined to one side of the bed assembly 2, thus combining the stair assembly 1 with the bed assembly 2.

[0022] The first pad 1015 is positioned at the location of the positioning hole 1014. The side of the first pad 1015 facing the vertical cylinder 101 is curved, fitting the outer circumference of the vertical cylinder 101; the side of the first pad 1015 facing away from the vertical cylinder 101 is flat. During installation, the curved surface rests against the arc surface of the vertical cylinder 101, while the flat surface provides stable support for the bolt head or fastening end of the first fastening bolt 1016. Because the surface of the circular vertical cylinder 101 is not flat, if the fastening part directly presses against the arc surface, the contact position is prone to skewness, and the force is concentrated. The first pad 1015 transforms the arc contact position into a flatter bearing position, preventing the first fastening bolt 1016 from shifting during tightening and ensuring that the tightening force is transmitted more evenly to the vertical cylinder 101.

[0023] Each pedal 102 has a second pad 1021 and a second fastening bolt 1022 at both ends. Multiple blind holes 1013 are provided along the height direction on the side of the two vertical cylinders 101 that are close to each other. Each blind hole 1013 is located above the corresponding second turning opening 1012 and corresponds to the installation height of each pedal 102. The blind holes 1013 have threads that mate with the second fastening bolts 1022. When installing the pedal 102, place it between the two vertical cylinders 101, aligning the installation positions of both ends of the pedal 102 with the blind holes 1013 on both sides. Then, screw the second fastening bolts 1022 through the second pads 1021 and into the blind holes 1013. After tightening the second fastening bolts 1022 at both ends, the pedal 102 is fixed between the two vertical cylinders 101.

[0024] The second pad 1021 has a curved surface facing the vertical cylinder 101 that conforms to the outer circumference of the vertical cylinder 101, and a flat surface facing away from the vertical cylinder 101. Its function is similar to that of the first pad 1015. The curved surface conforms to the outer surface of the vertical cylinder 101, and the flat surface forms the bearing position for the end of the pedal 102 and the second fastening bolt 1022. The second pad 1021 reduces the shaking caused by the small contact area between the end of the pedal 102 and the circular vertical cylinder 101, and also prevents significant skewness of the end of the pedal 102 when the second fastening bolt 1022 is tightened. When assembling multiple pedals 102, they can be installed sequentially from bottom to top, and the second fastening bolts 1022 at both ends of each pedal 102 can be tightened alternately to keep the pedals 102 horizontal.

[0025] An upper elastic rotating seat 1017 is fixedly installed at the upper end inside each vertical cylinder 101, and a lower elastic rotating seat 1018 is fixedly installed at the lower end inside each vertical cylinder 101. The upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 are arranged opposite each other along the axis of the vertical cylinder 101. The upper end of the rotating rod 1019 is connected to the upper elastic rotating seat 1017, and the lower end is connected to the lower elastic rotating seat 1018. The rotating rod 1019 extends along the axial direction of the vertical cylinder 101 and is coaxially arranged with the vertical cylinder 101. With simultaneous support at both the upper and lower ends, the rotating rod 1019 can remain vertical inside the vertical cylinder 101 and can rotate around its own axis.

[0026] The upper elastic rotary seat 1017 and the lower elastic rotary seat 1018 can be rotary seats with torsion reset components. During installation, the seat body is fixed inside the vertical cylinder 101, and the end of the rotating rod 1019 is inserted into the rotating part of the rotary seat. One end of the torsion reset component is connected to the seat body, and the other end is connected to the rotating rod 1019 or the rotating part. When the rotating rod 1019 is rotated by an external force, the torsion reset component undergoes elastic deformation and stores a reset force; after the external force is removed, the reset force drives the rotating rod 1019 to rotate in the opposite direction. The combined action of the upper elastic rotary seat 1017 and the lower elastic rotary seat 1018 can ensure that the rotating rod 1019 is subjected to more even force and can also reduce the sway caused by single-end support. The specific structure of the elastic rotary seat can adopt a common torsion spring shaft seat, as long as it can support the rotation of the rotating rod 1019 and reset it after the external force is removed.

[0027] A handle 120 is provided on the upper part of the rotating rod 1019. One end of the handle 120 is fixedly connected to the rotating rod 1019, and the other part extends out of the vertical tube 101 through the first turning port 1011. The first turning ports 1011 on the two vertical tubes 101 are respectively opened on the side of the two vertical tubes 101 that are far apart from each other, so that the two handles 120 are located on the left and right outer sides of the stair assembly 1 respectively. This position makes it convenient for the user to grab the handles with both hands when climbing the stair assembly 1, and also reduces interference between the handles 120 and the steps 102.

[0028] The first turning port 1011 extends circumferentially along the vertical cylinder 101, and its circumferential length is adapted to the angle at which the handle 120 needs to rotate. In this embodiment, the first turning port 1011 allows the handle 120 to rotate 90° with the rotating rod 1019. The width of the first turning port 1011 is slightly larger than the thickness of the connection between the handle 120 and the rotating rod 1019, so that the handle 120 will not be stuck by the tube wall of the vertical cylinder 101 when rotating. The two ends of the first turning port 1011 can also serve as travel boundaries. When the handle 120 is rotated to one end of the first turning port 1011, the support block 121 is in a non-supported state; when the handle 120 is rotated to the other end, the support block 121 is in an auxiliary support state. In this way, the state of the support block 121 can be determined by the position of the handle 120.

[0029] Each rotating rod 1019 has multiple support blocks 121 spaced axially. The number of support blocks 121 is the same as the number of pedals 102 on that side, and each support block 121 is located below the corresponding pedal 102. The support blocks 121 on the two vertical cylinders 101 correspond to each other, so each pedal 102 has one support block 121 below each end. The inner side of the support block 121 is fixedly connected to the rotating rod 1019, and the outer side extends out of the vertical cylinder 101 through the second turning port 1012. When the rotating rod 1019 rotates, all the support blocks 121 on the same rotating rod 1019 rotate synchronously with the rotating rod 1019.

[0030] Second turning openings 1012 are formed on the side of the two vertical cylinders 101 that are close to each other, and are located below each pedal 102. Each second turning opening 1012 extends circumferentially along the vertical cylinder 101 and allows the support block 121 to rotate 90°. The height and width of the second turning opening 1012 are adapted to the shape of the support block 121, allowing the support block 121 to rotate out through the opening while maintaining necessary clearance. The second turning openings 1012 are aligned vertically, ensuring that the support blocks 121 below both ends of the same pedal 102 are at the same height.

[0031] The support block 121 is a block-shaped component with a certain thickness. One end of it extending out of the vertical cylinder 101 forms a support portion for supporting the lower surface of the pedal 102. The upper side of the support block 121 is configured as a support surface that can contact the lower surface of the pedal 102. When the support block 121 is rotated under the pedal 102, the support surface approaches or abuts the lower surface of the pedal 102. The thickness, extension length, and installation height of the support block 121 are coordinated to ensure that it can bear the downward load transmitted by the pedal 102 after reaching the auxiliary support position, without interfering with the end of the pedal 102 or the second pad block 1021 during rotation.

[0032] The support block 121 has a non-supported state and an auxiliary support state. Figure 6 The position of support block 121 in its unsupported state is shown. In this state, support block 121 is rotated outwards from below pedal 102, offset from and out of contact with the lower surface of pedal 102. Pedal 102 is then fixed and supported by the second pads 1021 at both ends and the second fastening bolts 1022. Because support block 121 does not maintain support contact with pedal 102, the weight of pedal 102 and the slight vibrations generated by the bed during daily use will not continuously act on support block 121.

[0033] Figure 7The position of support block 121 in auxiliary support state is shown. After the handle 120 drives the rotating rod 1019 to rotate, the support block 121 rotates along the second turning port 1012 into the space below the pedal 102, and its supporting surface contacts the lower surface of the pedal 102. When the pedal 102 is subjected to a stepping load, the original fastening connection structure at both ends of the pedal 102 remains connected, and the two support blocks 121 simultaneously support the pedal 102 from below. Thus, the load on the pedal 102 is no longer concentrated only on the second fastening bolt 1022 and its connection position, but can also be transmitted to the two vertical cylinders 101 through the support blocks 121.

[0034] When the student bed is not using the staircase component 1, the handle 120 is in its initial position, and the support block 121 remains in place. Figure 6 The diagram shows the unsupported state. In this state, the upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 apply a reset effect to the rotating rod 1019, preventing it from rotating on its own due to ordinary vibration. Multiple support blocks 121 are rotated away from their corresponding pedals 102, avoiding prolonged pressure under the pedals 102.

[0035] When preparing to climb, the user can first stand in front of the staircase assembly 1 and grasp the handles 120 on the outside of the two vertical cylinders 101 with both hands. Applying rotational force to the handles 120 causes them to rotate along their respective first turning openings 1011. Each handle 120 drives the rotating rod 1019 inside its corresponding vertical cylinder 101 to rotate synchronously. Since multiple support blocks 121 are fixed to the same rotating rod 1019, the multiple support blocks 121 on the same side do not need to be operated individually, but instead simultaneously turn along their respective second turning openings 1012 towards the footplate 102.

[0036] Once both handles 120 are rotated to the auxiliary support position, the support blocks 121 at both ends of each pedal 102 are in place. The user then steps on each pedal 102 in sequence to climb upwards. Regardless of which pedal 102 the user steps on, there are support blocks 121 at both ends of that pedal 102 for support. The support blocks 121 located under other pedals 102 also maintain their auxiliary support position, so the user does not need to reoperate the corresponding support blocks 121 when switching feet between different pedals 102.

[0037] When a user steps on pedal 102, the foot load is first applied to pedal 102. Part of the load is transferred to the vertical cylinder 101 via both ends of pedal 102, the second pad 1021, and the second fastening bolt 1022. Another part is transferred to the support blocks 121 on both sides via the lower surface of pedal 102, and then to the vertical cylinder 101 via the support blocks 121 and their mounting positions with the rotating rod 1019 and the vertical cylinder 101. The end connection and bottom support of pedal 102 work together to reduce the possibility of the end connection of pedal 102 bearing the entire stepping load alone.

[0038] Once the user has finished climbing or left the stair assembly 1, the rotational force applied to the handle 120 is removed. The upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 release their restoring force, causing the rotating rod 1019 to rotate in the opposite direction. The handle 120 returns to its initial position along the first turning port 1011, and the multiple support blocks 121 on the same rotating rod 1019 also rotate back synchronously along the second turning port 1012. After the support blocks 121 leave the underside of the pedal 102, they return to their original positions. Figure 6 The state shown. The entire reset process is completed by the elastic rotating seat, without requiring the user to retract the support blocks 121 under each pedal 102 separately.

[0039] The resetting force provided by the upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 should be sufficient to drive the rotating rod 1019, the handle 120, and the multiple support blocks 121 to complete the resetting process. However, the force should not be too large, so as to avoid requiring excessive force from the user when rotating the handle 120. During actual assembly, appropriate torsional resetting components can be selected based on the length of the rotating rod 1019, the number of support blocks 121, and the friction conditions of each rotating part. The rotating rod 1019 and the elastic rotating seat should be coaxial, and the edges of the first turning opening 1011 and the second turning opening 1012 should be flat to reduce rotational resistance.

[0040] The linkage structures within the two vertical cylinders 101 are independent of each other. The left handle 120 controls the left rotating rod 1019 and all its support blocks 121, while the right handle 120 controls the right rotating rod 1019 and all its support blocks 121. In use, rotating either handle 120 engages the support blocks 121 at both ends of the pedal 102, thus activating the auxiliary support mechanism. This arrangement eliminates the need for a separate transverse transmission component between the two vertical cylinders 101, allowing for installation within the internal space of the cylinders 101 and facilitating separate assembly and maintenance.

[0041] The staircase assembly 1 can be assembled in the following order: first, install the internal linkage structure, then install the treads 102. First, fix the upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 inside the vertical cylinder 101, and install the rotating rod 1019 between them. Then, extend the handle 120 from the first turning port 1011, and extend each support block 121 from its corresponding second turning port 1012. Check whether the handle 120 and each support block 121 can rotate 90° within their respective openings. After smooth rotation, install the multiple treads 102 between the two vertical cylinders 101 using the second pad 1021 and the second fastening bolt 1022. Finally, fix the staircase assembly 1 to one side of the bed frame assembly 2 using the first pad 1015 and the first fastening bolt 1016.

[0042] After assembly, the handles 120 on both sides can be rotated for inspection. When the handles 120 are rotated to one end, each support block 121 should be located below the pedal 102 and form a supporting relationship with the lower surface of the pedal 102. After releasing the handles 120, the rotating rod 1019 should return to its initial position under the action of the upper elastic rotating seat 1017 and the lower elastic rotating seat 1018, and each support block 121 should disengage from the pedal 102. If individual support blocks 121 rub against the second turning port 1012, the installation angle or opening edge of the support block 121 can be adjusted so that multiple support blocks 121 on the same rotating rod 1019 can move synchronously.

[0043] After a period of use, check whether the first fastening bolt 1016 and the second fastening bolt 1022 are loose, and check the rotation of the handle 120, the rotating rod 1019, and the support block 121. Since the support block 121 can automatically rotate away from the tread 102 when the stair assembly 1 is not in use, its supporting surface will not be subjected to the weight of the tread 102 and daily vibrations for a long time. The support block 121 only moves under the tread 102 to provide auxiliary support when the user operates the handle 120 and climbs. This preserves the original fixed connection of the tread 102 while allowing multiple support blocks 121 to uniformly enter or exit the support position according to the usage state of the stair assembly 1.

[0044] The first pad 1015 and the second pad 1021 also facilitate the assembly and disassembly of the stair assembly 1. When the stair assembly 1 needs to be removed, the first fastening bolt 1016 can be loosened to separate the vertical cylinder 101 from the bed assembly 2. When a single tread 102 needs to be replaced, the second fastening bolts 1022 at both ends of the tread 102 can be loosened without removing the other treads 102 and the linkage structure inside the vertical cylinder 101. During reinstallation, the first pad 1015 and the second pad 1021 can still fit against the vertical cylinder 101 using their respective curved surfaces, reducing the possibility of misalignment in the connection position after repeated assembly.

[0045] In this embodiment, the safety linkage protection mechanism consists of an upper elastic rotating seat 1017, a lower elastic rotating seat 1018, a rotating rod 1019, and a handle 120 and multiple support blocks 121 connected to the rotating rod 1019, all housed within two vertical cylinders 101. The handle 120 is used to input rotational motion, and the rotating rod 1019 transmits this motion to the multiple support blocks 121 on the same side. The support blocks 121 provide auxiliary support for each step 102 during climbing. The upper elastic rotating seat 1017 and the lower elastic rotating seat 1018 reset the mechanism after the external force is removed. The components cooperate according to the above relationship, enabling the auxiliary support action of the multiple steps 102 to be completed centrally, and allowing the support blocks 121 to retract from their supporting position when the stair assembly 1 is not in use.

Claims

1. A modular student bed with a safety linkage protection mechanism, comprising a bed frame assembly (2) and a staircase assembly (1) connected to one side of the bed frame assembly (2), wherein the staircase assembly (1) comprises two parallel vertical cylinders (101) and a plurality of treads (102) spaced vertically between the two vertical cylinders (101), characterized in that: Each of the vertical cylinders (101) is provided with an upper elastic rotating seat (1017), a lower elastic rotating seat (1018), and a rotating rod (1019) rotatably connected between the two. The rotating rod (1019) is provided with a handle (120) and a plurality of support blocks (121) corresponding to the pedal (102). The vertical tube (101) is provided with a first turning port (1011) for the handle (120) to extend out and a plurality of second turning ports (1012) for the plurality of support blocks (121) to extend out respectively, and each of the second turning ports (1012) is located below the corresponding pedal (102); The grip (120) can drive the rotating rod (1019) to rotate, so that multiple support blocks (121) can rotate synchronously into the lower part of the corresponding pedal (102) and form auxiliary support; the upper elastic rotating seat (1017) and the lower elastic rotating seat (1018) are used to drive the rotating rod (1019) to elastically reset, so that multiple support blocks (121) can rotate synchronously away from the corresponding pedal (102).

2. A modular student bed with a safety linkage protection mechanism according to claim 1, characterized in that: Each of the vertical cylinders (101) has a through-hole (1014) at its top. A first pad (1015) is provided at the location of the positioning hole (1014) on the vertical cylinder (101). A first fastening bolt (1016) is provided through the first pad (1015). The first fastening bolt (1016) passes through the first pad (1015) and the positioning hole (1014) and is connected to the edge of the bed assembly (2).

3. A modular student bed with a safety linkage protection mechanism according to claim 2, characterized in that: The side of the first pad (1015) facing the vertical cylinder (101) is a curved surface that matches the outer peripheral surface of the vertical cylinder (101), and the side of the first pad (1015) facing away from the vertical cylinder (101) is a flat surface.

4. A modular student bed with a safety linkage protection mechanism according to claim 1, characterized in that: Each of the second turning ports (1012) is provided with a blind hole (1013) above it. Each of the pedals (102) is provided with a second pad (1021) and a second fastening bolt (1022) at both ends. The second fastening bolt (1022) passes through the corresponding second pad (1021) and is connected to the corresponding blind hole (1013) to fix the pedal (102) between the two vertical cylinders (101).

5. A combined student bed with a safety linkage protection mechanism according to claim 4, characterized in that: The side of the second pad (1021) facing the vertical cylinder (101) is a curved surface that matches the outer peripheral surface of the vertical cylinder (101), and the side of the second pad (1021) facing away from the vertical cylinder (101) is a flat surface.

6. A modular student bed with a safety linkage protection mechanism according to claim 1, characterized in that: The first turning port (1011) is opened on the side of the two vertical cylinders (101) that are far apart from each other, and a plurality of second turning ports (1012) are opened on the side of the two vertical cylinders (101) that are close to each other. The first turning port (1011) and the second turning port (1012) both extend circumferentially along the vertical cylinder (101).

7. A modular student bed with a safety linkage protection mechanism according to claim 6, characterized in that: The first steering port (1011) allows the grip (120) to rotate 90° with the rotating rod (1019), and the second steering port (1012) allows the support block (121) to rotate 90° with the rotating rod (1019).

8. A modular student bed with a safety linkage protection mechanism according to claim 1, characterized in that: The upper elastic rotating seat (1017) and the lower elastic rotating seat (1018) are respectively fixedly installed at the upper and lower ends inside the vertical cylinder (101), and the rotating rod (1019) extends along the axial direction of the vertical cylinder (101) and is coaxially installed with the vertical cylinder (101).

9. A modular student bed with a safety linkage protection mechanism according to claim 1, characterized in that: Multiple support blocks (121) are spaced apart along the axial direction of the rotating rod (1019), and a support block (121) is respectively provided below each end of each pedal (102); the support block (121) has an auxiliary support state in which it rotates into the pedal (102) and contacts the lower surface of the pedal (102), and a reset state in which it rotates away from the pedal (102) and disengages from the lower surface of the pedal (102).

Images