Multi-position interlocking locking mechanism and storage bed

Abstract

The utility model relates to life furniture technical field, specifically disclose a multi -position linkage locking mechanism and storage bed, include: locking mechanism shell, rotation axis, rotary hook board, a plurality of telescopic bolt subassembly, transmission assembly, tension spring, when rotary hook board is driven positive rotation by tension spring, the upper end of rotary hook board is clamped tightly and arranges the skeleton, and the middle part of rotary hook board is driven each telescopic bolt subassembly to extend to clamping tightly and arranges the skeleton through rotation axis and transmission assembly in proper order, when rotary hook board is driven reverse rotation, the upper end of rotary hook board is separated from the skeleton, and the middle part of rotary hook board is driven each telescopic bolt subassembly to retract to separate from the skeleton through rotation axis and transmission assembly in proper order. The multi -position linkage locking mechanism and storage bed provided by the utility model can effectively solve the problem that the existing locking mechanism can only be positioned and locked to single one position, and cannot satisfy the multi -position locking demand of user.

Description

Technical Field

[0001] This utility model relates to the field of living furniture technology, and in particular to a multi-position linkage locking mechanism and a storage bed. Background Technology

[0002] A storage bed typically includes a bed frame that surrounds and forms the storage space, and a slatted frame that is hinged to the headboard to cover the upper opening of the storage space. The storage space can be opened or closed by rotating the footboard of the slatted frame.

[0003] To prevent the slatted frame from being accidentally opened, some storage beds have a locking mechanism at the foot of the bed. Only after opening the locking mechanism to release the limit lock on the slatted frame can the foot of the bed be rotated to open the slatted frame.

[0004] However, existing locking mechanisms can only limit and lock a single position of the frame, resulting in poor reliability and stability, and cannot meet users' multi-position locking needs.

[0005] Therefore, the existing locking mechanism needs to be improved to solve the problem that it can only limit and lock a single position of the frame, and cannot meet the user's multi-position locking needs.

[0006] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] One objective of this invention is to provide a multi-position linkage locking mechanism and storage bed, which can effectively solve the problem that existing locking mechanisms can only limit and lock a single position, and cannot meet the user's multi-position locking needs.

[0008] To achieve the above objectives, this utility model provides a multi-position linkage locking mechanism, comprising:

[0009] Locking mechanism housing for mounting on the inside of the bed frame;

[0010] The rotating shaft is rotatably connected to the housing of the locking mechanism at its center.

[0011] A rotating hook plate is located inside the housing of the locking mechanism and is synchronously connected to the rotating shaft in the middle; the upper end of the rotating hook plate is engaged with the frame, and the lower end forms an operating part;

[0012] Several telescopic pin assemblies, each of which is used for mounting on a bed frame;

[0013] The transmission assembly has one end connected to the rotating shaft and the other end connected to each of the telescopic pin assemblies.

[0014] A tension spring connects the locking mechanism housing and the rotating hook plate;

[0015] in,

[0016] When the rotating hook plate is driven to rotate in the forward direction by the tension spring, the upper end of the rotating hook plate clamps the frame, and the middle part of the rotating hook plate sequentially drives each of the telescopic pin assemblies to extend and clamp the frame through the rotating shaft and the transmission assembly.

[0017] When the operating part is driven to rotate in the opposite direction, the upper end of the rotating hook plate disengages from the frame, and the middle part of the rotating hook plate sequentially drives each of the telescopic pin assemblies to retract to disengage from the frame through the rotating shaft and the transmission assembly.

[0018] Optionally, the telescopic pin assembly includes:

[0019] A fixing sleeve is used to fix the bed frame to the side and has a pin hole with an opening facing the side of the slatted frame.

[0020] A sliding pin, which is slidably installed in the pin hole;

[0021] The sliding pin has a pin rack portion on its circumferential surface, and the fixing sleeve has an avoidance window corresponding to the position of the pin rack portion.

[0022] Optionally, the transmission assembly includes:

[0023] A first gear, which is fixedly connected to the rotating shaft;

[0024] A first transmission rod, one end of which is meshed with the first gear, is used to be driven by the first gear to slide back and forth relative to the bed frame along the bed width direction;

[0025] The second gear meshes with the other end of the first transmission rod;

[0026] The second transmission rod has one end fixed to the second gear and is used to rotate around the length of the bed by being driven by the second gear.

[0027] The third gear is fixed to the other end of the second transmission rod and meshes with the pin rack portion, and is used to drive the sliding pin to slide along the bed frame direction.

[0028] Optionally, the number of telescopic pin assemblies is two, and each telescopic pin assembly is provided with a set of the first transmission rod, the second gear, the second transmission rod, and the third gear.

[0029] The first gear is simultaneously engaged with both of the first transmission rods.

[0030] Optionally, the axes of all gears are located in the same horizontal plane;

[0031] One of the first transmission rods engages with the top of the first gear, and the sliding pin corresponding to the first transmission rod engages with the bottom of the corresponding third gear;

[0032] Another of the first transmission rods engages with the bottom of the first gear, and the sliding pin corresponding to the first transmission rod engages with the top of the corresponding third gear.

[0033] Optionally, the upper end of the rotating hook plate is provided with a slot with an opening facing away from the tension spring.

[0034] Optional, also includes:

[0035] A rotating limiting member is rotatably mounted on the housing of the locking mechanism and is located on the side of the rotating hook plate away from the tension spring;

[0036] A pin tumbler lock, comprising an outer lock cylinder mounted on the housing of the locking mechanism, and an inner lock bolt located within the outer lock cylinder and pulverically connected to the rotation limiting member;

[0037] The rotating limiting member has a locked state in which it is driven by the internal bolt to rotate to abut against the rotating hook plate to restrict the reverse rotation of the rotating hook plate; and an unlocked state in which it is driven by the internal bolt to rotate to disengage from the rotating hook plate to release the rotation restriction on the rotating hook plate.

[0038] Optionally, the operating part is fitted with a magnetic sleeve for magnetically absorbing and holding the key.

[0039] Optionally, a limiting stop is provided on the side of the rotating hook plate near the tension spring;

[0040] The limiting stop is used to prevent the rotating hook plate, which is in the unlocked state, from continuing to rotate in the opposite direction.

[0041] On the other hand, a storage bed is provided, characterized in that it includes:

[0042] A bed frame, wherein the interior of the bed frame has a hollow space;

[0043] In any of the multi-position linkage locking mechanisms described above, the locking mechanism housing of the multi-position linkage locking mechanism is installed and fixed on the inner side of the bed frame, and the telescopic pin assembly and transmission assembly of the multi-position linkage locking mechanism are located in the hollow space.

[0044] The slatted frame has one end hinged to the bed frame and the other end provided with a limiting post for engaging with the rotating hook plate of the multi-position linkage locking mechanism. The side of the slatted frame is provided with a pin hole for the telescopic pin assembly to be inserted.

[0045] The beneficial effects of this utility model are as follows: It provides a multi-position linkage locking mechanism and a storage bed, the working process of which is as follows:

[0046] S10: Initial Locking State

[0047] The rotating hook plate remains in the forward rotation direction under the tension of the tension spring (default locked direction). At this time:

[0048] ① The upper end of the rotating hook plate clamps the limiting post of the slat frame, restricting the vertical movement of the slat frame.

[0049] ②The middle part of the rotating hook plate drives the transmission component through the rotating shaft, which transmits power to each telescopic pin component.

[0050] ③ The telescopic pin assembly extends under the transmission action of the transmission assembly and inserts into multiple corresponding pin holes on the side of the slat frame to achieve multi-position lateral locking.

[0051] At this time, the frame is simultaneously fixed by the rotating hook plate (vertical direction) and multiple pins (horizontal direction), forming a linkage lock, which significantly improves stability.

[0052] S20: Unlocking Process

[0053] When a user needs to open the storage bed:

[0054] S201: Force on the operating part: The foot moves the operating part at the lower end of the rotating hook plate laterally, overcoming the tension of the tension spring and causing it to rotate in the opposite direction.

[0055] S202: Linked Release:

[0056] ① Rotate the upper part of the hook plate to disengage from the frame and release the vertical limit.

[0057] ② The rotating shaft rotates with the rotating hook plate, and through the transmission component, it drives all the telescopic pin components to retract synchronously and disengage from the insertion holes on the frame.

[0058] S203: Spare frame design:

[0059] At this point, the slatted frame is completely unlocked and can be rotated around the hinge point at the foot of the bed to open, revealing the storage space.

[0060] S30: Relocking process

[0061] When closing the slat frame:

[0062] S301: Automatic Reset: After the operating part is released, the tension spring pulls the rotating hook plate to reset in the forward direction, and the upper end re-clamps the frame.

[0063] S302: Pin linkage: The rotating shaft pushes the telescopic pin assembly to extend again through the transmission component, completing multi-position locking.

[0064] Therefore, the multi-position linkage locking mechanism and storage bed provided by this utility model can effectively solve the problem that existing locking mechanisms can only limit and lock a single position, and cannot meet the user's multi-position locking needs. Attached Figure Description

[0065] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0066] Figure 1 A schematic diagram of the storage bed provided in the embodiment;

[0067] Figure 2 A schematic diagram of the transmission assembly provided in the embodiment;

[0068] Figure 3 A schematic diagram of the internal structure of the locking mechanism housing provided for an embodiment (unlocked state);

[0069] Figure 4 A schematic diagram of the internal structure of the locking mechanism housing provided for the embodiment (locked state).

[0070] In the picture:

[0071] 100. Bed frame; 100a. Hollow space; 200. Slatted frame; 200a. Pin hole; 300. Multi-position linkage locking mechanism;

[0072] 1. Locking mechanism housing;

[0073] 2. Rotary hook plate; 201. Slot; 202. Operating unit;

[0074] 3. Tension spring;

[0075] 4. Rotational limiting component;

[0076] 5. Limiting stop;

[0077] 6. Pin tumbler lock; 601. External lock cylinder; 602. Internal bolt;

[0078] 7. Magnetic sheath;

[0079] 8. Telescopic pin assembly; 801. Fixing sleeve; 802. Sliding pin;

[0080] 9. Transmission assembly; 901. First gear; 902. First transmission rod; 903. Second gear; 904. Second transmission rod; 905. Third gear;

[0081] 10. Rotation axis. Detailed Implementation

[0082] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0083] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0084] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0085] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0086] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0087] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0088] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0089] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0090] This utility model provides a multi-position linkage locking mechanism and storage bed, suitable for compact spaces such as small apartments and student dormitories, and especially suitable for families with children or pets, achieving safe storage and efficient space utilization. The multi-position linkage locking mechanism and storage bed provided by this utility model effectively solve the problem that existing locking mechanisms can only limit locking to a single position, failing to meet users' multi-position locking needs.

[0091] See Figure 1 The storage bed provided in this embodiment includes a bed frame 100, a slatted frame 200, and a multi-position linkage locking mechanism 300 installed on the bed frame 100.

[0092] One end of the slatted frame 200 is hinged to the bed frame 100, and the other end is provided with a limiting post for engaging with the multi-position linkage locking mechanism 300.

[0093] See Figure 2 and Figure 3 The multi-position linkage locking mechanism 300 includes a locking mechanism housing 1, a rotating shaft 10, a rotating hook plate 2, several telescopic pin assemblies 8, a transmission assembly 9, and a tension spring 3.

[0094] The locking mechanism housing 1 is installed on the inner side of the foot of the bed frame 100. The bed frame 100 has a hollow space 100a inside, and the telescopic pin assembly 8 and the transmission assembly 9 are located in the hollow space 100a.

[0095] One end of the rotating shaft 10 is located inside the locking mechanism housing 1, the middle part of the rotating shaft 10 is rotatably connected to the locking mechanism housing 1, and the other end of the rotating shaft 10 is located outside the locking mechanism housing 1 and extends into the hollow space 100a;

[0096] The rotating hook plate 2 is located inside the locking mechanism housing 1, and the middle part of the rotating hook plate 2 is synchronously connected to the rotating shaft 10; the upper end of the rotating hook plate 2 is provided with a slot 201 extending to the top of the locking mechanism housing 1 to facilitate engagement with the frame 200; the lower end of the rotating hook plate 2 extends to the bottom of the locking mechanism housing 1 to form an operating part 202.

[0097] Each of the telescopic pin assemblies 8 is used for mounting on the bed frame 100. Optionally, it is mounted on the left or right sides of the bed frame 100.

[0098] One end of the transmission component 9 is connected to the end of the rotating shaft 10 located outside the locking mechanism housing 1, and the other end is connected to each of the telescopic pin assemblies 8.

[0099] The tension spring 3 connects the locking mechanism housing 1 and the rotating hook plate 2.

[0100] When the rotating hook plate 2 is driven to rotate in the forward direction by the tension spring 3, the upper end of the rotating hook plate 2 clamps the frame 200, and the middle part of the rotating hook plate 2 drives each of the telescopic pin assemblies 8 to extend and clamp the frame 200 through the rotating shaft 10 and the transmission assembly 9 in sequence.

[0101] When the operating part 202 is driven to rotate in the opposite direction, the upper end of the rotating hook plate 2 disengages from the frame 200, and the middle part of the rotating hook plate 2 drives each of the telescopic pin assemblies 8 to retract to disengage from the frame 200 in sequence through the rotating shaft 10 and the transmission assembly 9.

[0102] Furthermore, the opening of the slot 201 faces away from the tension spring 3. Correspondingly, the frame 200 is provided with a limiting post for engaging with the slot 201. When the tension spring 3 drives the rotating hook plate 2 to rotate in the forward direction, the upper end of the rotating hook plate 2 rotates, causing the slot 201 to engage with the limiting post, thereby restricting the upward movement of the frame 200 relative to the bed frame 100.

[0103] The multi-position linkage locking mechanism 300 provided in this embodiment works as follows:

[0104] S10: Initial Locking State

[0105] The rotating hook plate 2 remains in the forward rotation direction (default locked direction) under the tension of the tension spring 3. At this time:

[0106] ① The upper end of the rotating hook plate 2 is clamped to the limiting post of the frame 200, restricting the vertical movement of the frame 200.

[0107] ② The middle part of the rotating hook plate 2 drives the transmission component 9 through the rotating shaft 10, which transmits power to each telescopic pin component 8.

[0108] ③ The telescopic pin assembly 8 extends under the transmission action of the transmission assembly 9 and inserts into multiple corresponding pin holes 200a on the side of the frame 200 to achieve multi-position lateral locking.

[0109] At this time, the frame 200 is simultaneously fixed by the rotating hook plate 2 (vertical direction) and multiple pins (horizontal direction), forming a linkage lock, which significantly improves stability.

[0110] S20: Unlocking Process

[0111] When a user needs to open the storage bed:

[0112] S201: Force on the operating part 202: The foot moves the operating part 202 at the lower end of the rotating hook plate 2 laterally, overcoming the tension of the tension spring 3 and causing it to rotate in the opposite direction.

[0113] S202: Linked Release:

[0114] ① Rotate the upper end of the hook plate 2 out of the locking mechanism of the frame 200, and release the vertical limit.

[0115] ② The rotating shaft 10 rotates with the rotating hook plate 2, and drives all the telescopic pin assemblies 8 to retract synchronously through the transmission assembly 9, disengaging from the insertion holes on the frame 200.

[0116] S203: Spare frame 200 freedom:

[0117] At this point, the slatted frame 200 is completely unlocked and can be rotated open around the hinge point at the foot of the bed to reveal the storage space.

[0118] S30: Relocking process

[0119] When the slat frame is closed at 200:

[0120] S301: Automatic Reset: After the operating part 202 is released, the tension spring 3 pulls the rotating hook plate 2 to reset in the forward direction, and the upper end re-clamps the frame 200.

[0121] S302: Pin linkage: The rotating shaft 10 pushes the telescopic pin assembly 8 to extend again through the transmission assembly 9, completing the multi-position locking.

[0122] Therefore, the multi-position linkage locking mechanism 300 and storage bed provided by this utility model can effectively solve the problem that existing locking mechanisms can only limit and lock a single position, and cannot meet the user's multi-position locking needs.

[0123] In this embodiment, the telescopic pin assembly 8 includes a fixed sleeve 801 and a sliding pin 802. The fixed sleeve 801 is used to fix the bed frame 100 to the side position and has a pin hole 200a with an opening facing the side position of the slatted frame 200; the sliding pin 802 is slidably installed in the pin hole 200a.

[0124] The sliding pin 802 has a pin rack portion on its circumferential surface, and the fixed sleeve 801 has an avoidance window corresponding to the position of the pin rack portion.

[0125] The transmission assembly 9 includes a first gear 901, a first transmission rod 902, a second gear 903, a second transmission rod 904, and a third gear 905.

[0126] The first gear 901 is fixedly connected to the rotating shaft 10;

[0127] One end of the first transmission rod 902 is meshed with the first gear 901 and is used to be driven by the first gear 901 to slide back and forth relative to the bed frame 100 along the bed width direction;

[0128] The second gear 903 is meshed with the other end of the first transmission rod 902;

[0129] One end of the second transmission rod 904 is fixedly connected to the second gear 903, and is used to rotate around the length of the bed by being driven by the second gear 903;

[0130] The third gear 905 is fixed to the other end of the second transmission rod 904 and meshes with the pin rack portion, for driving the sliding pin 802 to slide and extend along the bed frame 100.

[0131] In this embodiment, there are two telescopic pin assemblies 8, and each telescopic pin assembly 8 is provided with a set of first transmission rod 902, second gear 903, second transmission rod 904 and third gear 905; wherein, the first gear 901 is simultaneously engaged with both first transmission rods 902.

[0132] Furthermore, the axes of all gears lie in the same horizontal plane;

[0133] One of the first transmission rods 902 is engaged with the top of the first gear 901, and the sliding pin 802 corresponding to the first transmission rod 902 is engaged with the bottom of the corresponding third gear 905;

[0134] Another first transmission rod 902 engages with the bottom of the first gear 901, and the sliding pin 802 corresponding to the first transmission rod 902 engages with the top of the corresponding third gear 905.

[0135] This allows the sliding pins 802 on both sides to extend outwards or retract inwards simultaneously.

[0136] In this embodiment, the opening of the slot 201 facing left is used as an example. When the foot-operated unit 202 drives the upper end of the rotating hook plate 2 to rotate to the right, the rotating hook plate 2 drives the first tooth to rotate clockwise via the rotating shaft 10. The clockwise rotation of the first tooth causes the first transmission rods 902 on both the left and right sides to slide inward, thereby causing all the second gears 903 and all the third gears 905 to rotate counterclockwise.

[0137] The telescopic pin assembly 8 on the left side of the bed frame 100 is located below the third gear 905 on the left side of the bed frame 100. Therefore, when the third gear on the left side of the bed frame 100 rotates clockwise, the sliding pin 802 will slide inward toward the fixed sleeve 801, thereby releasing the left side limit of the slatted frame 200.

[0138] Correspondingly, the telescopic pin assembly 8 on the right side of the bed frame 100 is located above the third gear 905 on the right side of the bed frame 100. Therefore, when the third gear on the right side of the bed frame 100 rotates clockwise, the sliding pin 802 will slide inward toward the fixed sleeve 801, thereby releasing the right side limit of the slatted frame 200.

[0139] In some other embodiments, a single telescopic pin assembly 8 may be provided, or multiple third gears 905 may be provided on the second transmission rod 904, with each third gear 905 corresponding to a telescopic pin assembly 8. This embodiment does not limit this.

[0140] The multi-position linkage locking mechanism 300 provided in this embodiment also includes a rotation limiting member 4 and a tumbler lock 6. The rotation limiting member 4 is rotatably mounted on the locking mechanism housing 1 and is located on the side of the rotating hook plate 2 away from the tension spring 3;

[0141] The pin tumbler lock 6 includes an outer lock cylinder 601 mounted on the locking mechanism housing 1, and an inner lock bolt 602 located inside the outer lock cylinder 601 and connected to the rotation limiting member 4.

[0142] The rotating limiting member 4 is driven by the internal locking bolt 602 to rotate to abut against the rotating hook plate 2, thereby restricting the reverse rotation of the rotating hook plate 2 (e.g., Figure 4 As shown); and having an unlocked state where it is driven to rotate by the internal bolt 602 to disengage from the rotating hook plate 2, thereby releasing the rotation restriction on the rotating hook plate 2 (as shown). Figure 3 (As shown).

[0143] First, the structure of pin tumbler lock 6 will be explained.

[0144] A pin tumbler lock (6) is a classic mechanical lock, named for its internal core structure consisting of multiple sets of pins (small metal cylinders). A pin tumbler lock (6) mainly includes an outer cylinder 601, an inner bolt 602 located within the outer cylinder 601 and having a keyhole, and several spring pins installed within the outer cylinder 601 and partially extending into the keyhole of the inner bolt 602.

[0145] After inserting the key into the keyhole, the key will push the spring pins outward:

[0146] If the key is a compatible key, all the spring pins will be pushed out of the inner bolt 602 at the same time. At this time, as long as the key is turned, the inner bolt 602 will rotate relative to the outer lock cylinder 601 with the key.

[0147] Conversely, if the key is not a compatible key, at least some of the spring pins cannot be pushed out of the inner bolt 602. In this case, even if the key is turned, the inner bolt 602 cannot rotate relative to the outer cylinder 601.

[0148] The specific structure and working principle of the pin tumbler lock 6 are existing technologies and are not the focus of this utility model. The focus of this utility model is to use the pin tumbler lock 6 to achieve the position locking of the rotation limiter 4. Therefore, the specific structure and working principle of the pin tumbler lock 6 will not be described in detail.

[0149] Normally, the rotation limiter 4 is horizontal and abuts against the left side of the operating part 202, thereby restricting the leftward rotation of the operating part 202. At this time, the locking state of the frame 200 is released. If it is necessary to open the frame 200, the key needs to be inserted into the keyhole and turned. This will cause the rotation limiter 4 to rotate 90° to a vertical position through the internal locking bolt 602. At this time, the rotation limiter 4 can no longer restrict the leftward rotation of the operating part 202. Therefore, the operating part 202 can be kicked to the left to release the restriction on the frame 200.

[0150] Optionally, the operating part 202 is fitted with a magnetic sleeve 7 for magnetically absorbing and storing the key. If the main purpose of the pin tumbler lock 6 is not for theft prevention, but to prevent children from accidentally opening the frame 200 and causing injury, there is no need to conceal the key. The key can be directly magnetically fixed to the bottom of the magnetic sleeve 7 for easy retrieval.

[0151] In this embodiment, a limiting stop 5 is provided on the side of the rotating hook plate 2 near the tension spring 3; the limiting stop 5 is used to restrict the rotating hook plate 2 from continuing to rotate in the opposite direction when it is in the unlocked state.

[0152] The multi-position linkage locking mechanism 300 and storage bed provided in this embodiment have the following advantages:

[0153] ① Multi-position linkage locking: Through the linkage design of rotating hook plate 2 and telescopic pin assembly 8, synchronous locking in the vertical (slot 201 + limit post) and horizontal (sliding pin 802 + pin hole 200a) directions is achieved, improving the overall stability of the storage bed.

[0154] ② Gear transmission synchronous control: The mechanical structure of gear set (first, second and third gears) and transmission rod is adopted to ensure that the telescopic pins on both sides extend and retract synchronously, avoiding uneven locking caused by failure on one side.

[0155] ③ Child safety protection: The pin tumbler lock 6 works in conjunction with the rotating limiter 4 to prevent children from accidentally unlocking the operation part 202. The storage space can only be opened by unlocking with a key.

[0156] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A multi-position linkage locking mechanism, characterized in that, include: Locking mechanism housing (1) for mounting on the inside of bed frame (100); The rotating shaft (10) is rotatably connected to the housing (1) of the locking mechanism in the middle; The rotating hook plate (2) is located inside the housing (1) of the locking mechanism and is synchronously connected to the rotating shaft (10) in the middle; the upper end of the rotating hook plate (2) is engaged with the frame (200) and the lower end forms an operating part (202). A plurality of telescopic pin assemblies (8), each of the telescopic pin assemblies (8) being used for mounting on the bed frame (100); The transmission assembly (9) is connected at one end to the rotating shaft (10) and at the other end to each of the telescopic pin assemblies (8); A tension spring (3) connects the locking mechanism housing (1) and the rotating hook plate (2). in, When the rotating hook plate (2) is driven to rotate in the forward direction by the tension spring (3), the upper end of the rotating hook plate (2) clamps the frame (200), and the middle part of the rotating hook plate (2) drives each telescopic pin assembly (8) to extend to clamp the frame (200) through the rotating shaft (10) and the transmission assembly (9). When the operating part (202) is driven to rotate in the opposite direction, the upper end of the rotating hook plate (2) disengages from the frame (200), and the middle part of the rotating hook plate (2) drives each telescopic pin assembly (8) to retract to disengage from the frame (200) in sequence through the rotating shaft (10) and the transmission assembly (9).

2. The multi-position linkage locking mechanism according to claim 1, characterized in that, The telescopic latch assembly (8) includes: A fixing sleeve (801) is used to fix the bed frame (100) to the side position and is provided with a pin hole (200a) with an opening facing the side position of the slatted frame (200). A sliding pin (802) is slidably installed in the pin hole (200a); The sliding pin (802) has a pin rack portion on its circumferential surface, and the fixed sleeve (801) has an avoidance window corresponding to the position of the pin rack portion.

3. The multi-position linkage locking mechanism according to claim 2, characterized in that, The transmission assembly (9) includes: The first gear (901) is fixedly connected to the rotating shaft (10); The first transmission rod (902) has one end meshing with the first gear (901) and is used to be driven by the first gear (901) to slide back and forth relative to the bed frame (100) in the direction of bed width. The second gear (903) meshes with the other end of the first transmission rod (902); The second transmission rod (904) has one end fixed to the second gear (903) and is used to be driven by the second gear (903) to rotate around the length of the bed. The third gear (905) is fixed at the other end of the second transmission rod (904) and meshes with the pin rack portion to drive the sliding pin (802) to slide along the bed frame (100).

4. The multi-position linkage locking mechanism according to claim 3, characterized in that, The telescopic pin assembly (8) is in the form of two, and each telescopic pin assembly (8) is provided with a set of the first transmission rod (902), the second gear (903), the second transmission rod (904), and the third gear (905). The first gear (901) is simultaneously engaged with both first transmission rods (902).

5. The multi-position linkage locking mechanism according to claim 4, characterized in that, The axes of all gears lie in the same horizontal plane; One of the first transmission rods (902) is engaged with the top of the first gear (901), and the sliding pin (802) corresponding to the first transmission rod (902) is engaged with the bottom of the corresponding third gear (905); Another of the first transmission rods (902) engages with the bottom of the first gear (901), and the sliding pin (802) corresponding to the first transmission rod (902) engages with the top of the corresponding third gear (905).

6. The multi-position linkage locking mechanism according to claim 1, characterized in that, The upper end of the rotating hook plate (2) is provided with a slot (201) with an opening facing away from the tension spring (3).

7. The multi-position linkage locking mechanism according to claim 1, characterized in that, Also includes: Rotary limiting member (4), the rotary limiting member (4) is rotatably mounted on the locking mechanism housing (1) and located on the side of the rotary hook plate (2) away from the tension spring (3); The pin tumbler lock (6) includes an outer lock cylinder (601) mounted on the locking mechanism housing (1) and an inner lock bolt (602) located inside the outer lock cylinder (601) and pulverically connected to the rotation limiter (4). The rotating limiting member (4) is in a locked state where it is driven by the internal bolt (602) to rotate to abut against the rotating hook plate (2) to restrict the rotating hook plate (2) from rotating in the opposite direction; and in an unlocked state where it is driven by the internal bolt (602) to rotate away from the rotating hook plate (2) to release the rotation restriction on the rotating hook plate (2).

8. The multi-position linkage locking mechanism according to claim 1, characterized in that, The operating part (202) is fitted with a magnetic sleeve (7) for magnetically absorbing and holding the key.

9. The multi-position linkage locking mechanism according to claim 1, characterized in that, The rotating hook plate (2) is provided with a limiting stop (5) on the side near the tension spring (3); The limiting stop (5) is used to restrict the rotating hook plate (2) in the unlocked state from continuing to rotate in the opposite direction.

10. A storage bed, characterized in that, include: A bed frame (100) has a hollow space (100a) inside. The multi-position linkage locking mechanism (300) according to any one of claims 1-9, wherein, The locking mechanism housing (1) of the multi-position linkage locking mechanism (300) is installed and fixed on the inner side of the bed frame (100), and the telescopic pin assembly (8) and transmission assembly (9) of the multi-position linkage locking mechanism (300) are located in the hollow space (100a). The slatted frame (200) has one end hinged to the bed frame (100) and the other end provided with a limiting post for engaging with the rotating hook plate (2) of the multi-position linkage locking mechanism (300). The side of the slatted frame (200) is provided with a pin hole (200a) for the telescopic pin assembly (8) to be inserted.

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