Locker storage units

Abstract

The present invention relates to the technical field of lockers, and in particular to a storage unit of a locker for a vending machine, a logistics cabinet, etc., which comprises a locker body, a lock shaft assembly, a lock nut assembly, and a cabinet door movably connected to the locker body; one of the lock shaft assembly and the lock nut assembly is arranged on the locker body, and the other of the lock shaft assembly and the lock nut assembly is arranged on the cabinet door; the lock shaft assembly comprises a lock shaft driver and a lock shaft member connected to the output end of the lock shaft driver; the lock shaft member comprises a lock head provided with a thread; the lock nut assembly comprises a lock nut body, and the lock head is threadedly connected to the lock nut body or is connected in abutting relation. The present invention can realize the automatic rotation of the cabinet door relative to the cabinet body, and realize automatic opening and closing of the cabinet door; can reduce or eliminate the axial force received by the output end of the lock shaft driver, which is beneficial to improving the service life of the lock shaft driver; the holding force between the cabinet body and the cabinet door is substantially constant, which can ensure a stable sealing effect between the cabinet body and the cabinet door.

Description

Technical Field

[0001] The present invention relates to the technical field of storage cabinets, and in particular to storage units of storage cabinets such as vending machines and logistics cabinets. Background Art

[0002] Traditional storage units in vending machines, logistics cabinets, and other storage units typically consist of a cabinet body and a hinged door. The hinged axis between the cabinet body and the door is equipped with a torsion spring. A latch (usually in a U-shape) is located at one end of the door (the other end of the door hinged to the cabinet body), and the cabinet body is equipped with a corresponding lock structure. Because the door cannot be automatically locked and unlocked, it must be opened and closed manually. Specifically, when opening the door, the lock structure is disconnected from the latch, allowing the door to automatically open due to the spring force. When closing the door, the door must be manually pushed to close.

[0003] Especially under the current COVID-19 situation, there is an increased demand for vending machines and logistics cabinets that can automatically open and close the cabinet doors at the same time; it is hoped that the storage cavity of the storage cabinet body can be better sealed.

[0004] In summary, the existing technology has at least the following technical problems:

[0005] First, it is impossible to achieve automatic locking and unlocking of the cabinet door. Human body needs to touch the cabinet door, which increases the chance of human body contact with germs.

[0006] Second, the reliability of the door lock structure that automatically opens and closes the cabinet door needs to be further improved.

[0007] Third, the hinges between the cabinet body and the cabinet door cannot achieve the force-releasing effect and have low reliability. Summary of the Invention

[0008] One purpose of the present invention is to solve or alleviate the above-mentioned first technical problem.

[0009] The means adopted by the present invention are as follows: a storage unit of a storage cabinet comprises a storage cabinet body, a lock shaft assembly, a lock nut assembly and a cabinet door movably connected to the storage cabinet body; one of the lock shaft assembly and the lock nut assembly is arranged on the storage cabinet body, and the other of the lock shaft assembly and the lock nut assembly is arranged on the cabinet door; the lock shaft assembly comprises a lock shaft driving component and a lock shaft component connected to the output end of the lock shaft driving component; the lock shaft component comprises a lock head provided with a thread; the lock nut assembly comprises a lock nut body, and the lock head is threadedly connected to the lock nut body or is abutted against it.

[0010] The present invention has the following effects: the cabinet door can be automatically locked and unlocked; and in the unlocked state, the cabinet door and the storage cabinet body are aligned, making it easy to open the cabinet door.

[0011] According to a further technical solution, the shaft locking member and the shaft locking driving member are connected in a straight sliding manner roughly along the rotation axis of the shaft locking driving member.

[0012] The axial force received by the output end of the shaft lock driving component can be reduced or eliminated, which is beneficial to improving the service life of the shaft lock driving component.

[0013] According to a further technical solution, the shaft lock assembly further comprises a constant pressure elastic member, which is respectively connected to the storage cabinet body and the shaft lock member, so that the shaft lock member tends to approach the shaft lock drive member.

[0014] The holding force between the storage cabinet body and the cabinet door is substantially constant, which can ensure that the sealing effect between the storage cabinet body and the cabinet door is substantially stable.

[0015] A further technical solution is that the lock shaft component is provided with a constant pressure ear, the constant pressure elastic component is a spring and its two ends are respectively against the constant pressure ear and the storage cabinet body; the constant pressure elastic component is sleeved on the lock shaft component and its axis roughly coincides with the rotation axis of the output end of the lock shaft driving component.

[0016] A further technical solution is that the lock shaft component includes a small diameter section connected to the lock head, and the small diameter section is located between the lock shaft driving component and the lock head; the diameter of the circumscribed circle of the cross-section of the small diameter section is the small diameter section diameter, and the inner diameter of the tooth top of the thread of the lock mother body is the thread top diameter, then the small diameter section diameter is less than or equal to the thread top diameter.

[0017] It can prevent the lock shaft drive component from being overloaded and damaged, and can also ensure a stable sealing effect between the storage cabinet body and the cabinet door.

[0018] The shaft lock component comprises a large diameter section whose diameter is larger than that of the small diameter section; the axial length between the large diameter section and the lock head is greater than or equal to the thickness of the lock mother body.

[0019] The contact area is large and the strength is high, and it is also convenient to process the shaft lock parts.

[0020] According to a further technical solution, when the lock head is screwed into the lock body, the lock shaft member can be disconnected from the output end of the lock shaft driving member.

[0021] A further technical solution is that the lock shaft member is provided with a slot, the lock shaft driving member is embedded in the slot, and when the lock head is screwed into the lock mother body, the output end of the lock shaft driving member is pulled out from the slot.

[0022] The risk of damage to the lock shaft drive component can be reduced; and the use of a storage unit of a faulty locker can be avoided.

[0023] A further technical solution also includes a seal arranged between the storage cabinet body and the cabinet door.

[0024] The sealing effect between the storage cabinet body and the cabinet door can be improved.

[0025] A further technical solution also includes a door shaft assembly, and the cabinet door and the storage cabinet body are hinged through the door shaft assembly that can output rotational power.

[0026] The cabinet door can be automatically rotated relative to the storage cabinet body, and the cabinet door can be automatically opened and closed.

[0027] In summary, the present invention can achieve the following technical effects:

[0028] 1} It can realize the automatic rotation of the cabinet door relative to the storage cabinet body, and realize automatic opening and closing of the cabinet door.

[0029] 2} It can reduce or eliminate the axial force received by the output end of the lock shaft driving component, which is beneficial to improving the service life of the lock shaft driving component.

[0030] 3} The holding force between the cabinet body and the cabinet door is approximately constant, which can ensure that the sealing effect between the cabinet body and the cabinet door is approximately stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 3D is a schematic perspective view of a storage unit of a locker according to a first embodiment of the present invention.

[0032] Figure 2 3D is a schematic perspective view of a storage unit of a locker according to a first embodiment of the present invention.

[0033] Figure 3 3D is a schematic exploded perspective view of a storage unit of a locker according to a first embodiment of the present invention.

[0034] Figure 4 It is a schematic three-dimensional exploded view of the door hinge assembly 3 according to the first embodiment of the present invention.

[0035] Figure 5 It is a schematic three-dimensional exploded view of the door hinge assembly 3 according to the first embodiment of the present invention.

[0036] Figure 6 It is a schematic cross-sectional view of the door hinge assembly 3 according to the first embodiment of the present invention; the cross section is a plane passing through the axis of the force-releasing support body 64 and perpendicular to the rotation axis of the driving connector 62.

[0037] Figure 7 1 is a perspective exploded schematic diagram of the lock nut assembly 5 according to the first embodiment of the present invention.

[0038] Figure 8 2 is a perspective schematic diagram of a shaft locking member 41 according to the first embodiment of the present invention.

[0039] Figure 9 1 is a schematic top view of a storage unit of a locker according to embodiment 1 of the present invention.

[0040] Figure 10 This is a schematic diagram of section 1 SEC1.

[0041] Figure 11 This is a schematic diagram of section 2 SEC2.

[0042] Figure 12 Arrow ARR1 represents the elastic force provided by the constant pressure elastic member 43, so that the cabinet door 2 has a tendency to move due to the drive of the lock nut assembly 5 and the lock shaft member 41.

[0043] Figure 13 It is a schematic perspective exploded view of the door hinge assembly 3 according to the second embodiment of the present invention.

[0044] Figure 14 It is a schematic perspective exploded view of the door hinge assembly 3 according to the second embodiment of the present invention.

[0045] Figure 15 It is a half-section schematic diagram of the door hinge assembly 3 according to the second embodiment of the present invention; line LINE1 represents the dotted line corresponding to the force release groove 65.

[0046] Arrow ARR1; Section 1 SEC1; Section 2 SEC2; Section 3 SEC3; Line 1 LINE1; Cabinet body 1; Lock shaft sleeve 14; Side panel 18; Hinge shaft 19; Cabinet door 2; Shaft connector 21; Shaft connection hole 211; Door connection ear 219; Door shaft assembly 3; Door shaft carrier 31; Door shaft drive member 32; Door shaft output shaft 33; Lock shaft assembly 4; Lock shaft member 41; Lock head 411; Small diameter section 412; Small diameter section diameter 413; Constant pressure ear 414; large diameter section 415; slot 419; lock shaft drive member 42; constant pressure elastic member 43; lock nut assembly 5; lock nut carrier 51; slide groove 511; guide slope 519; lock nut body 52; slider 521; thread top diameter 523; lock nut elastic member 53; force release structure 6; drive connector 62; transmission member 63; accommodating chamber 636; force release support body 64; force release groove 65; positioning protrusion 652; groove wall angle 659; force release elastic member 66; sealing member 8. DETAILED DESCRIPTION

[0047] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0048] As a specific embodiment, the storage unit of the locker according to the first embodiment of the present invention includes a locker body 1 , a lock shaft assembly 4 , a lock nut assembly 5 and a cabinet door 2 movably connected to the locker body 1 .

[0049] One or more storage cabinets 1 are provided on a vending machine, a courier cabinet, etc. The storage cabinet 1 has a storage cavity (not shown in the drawings) for accommodating items (such as courier packages, etc., which are not shown in the drawings).

[0050] One of the lock shaft assembly 4 and the lock nut assembly 5 is arranged on the storage cabinet body 1 , and the other of the lock shaft assembly 4 and the lock nut assembly 5 is arranged on the cabinet door 2 .

[0051] The lock shaft assembly 4 includes a lock shaft driver 42 and a lock shaft member 41 connected to the output end of the lock shaft driver 42. The lock shaft driver 42 is a device that outputs rotational force, such as a reduction motor, etc.; the output end of the lock shaft driver 42 outputs rotational power to the lock shaft member 41, so that the lock shaft driver 42 drives the lock shaft member 41 to rotate. The lock shaft driver 42 is fixed to the storage cabinet body 1, so that the lock shaft assembly 4 is set on the storage cabinet body 1 or the cabinet door 2. The lock shaft driver 42 is electrically connected to a conventional control device, such as a PLC, a single-chip microcomputer, etc., so that the lock shaft driver 42 can operate according to demand (such as running a program).

[0052] The shaft locking member 41 includes a locking head 411 provided with threads.

[0053] The lock nut assembly 5 includes a lock nut body 52, and a lock head 411 is threadedly connected or abutted against the lock nut body 52. In this case, the cabinet door 2 is locked. As a specific embodiment, after the lock head 411 rotates through the lock nut body 52, one end of the lock head 411 abuts against one end of the lock nut body 52, so that the lock head 411 and the lock nut body 52 are abutted.

[0054] The lock nut 52 is directly or indirectly mounted on the cabinet body 1 or the cabinet door 2. For example, the lock nut 52 is fixed to the cabinet body 1 or the cabinet door 2 by bolts, so that the lock nut 52 is directly mounted on the cabinet body 1 or the cabinet door 2. The lock nut 52 can be mounted on the cabinet body 1 or the cabinet door 2 via a lock nut carrier 51 (described later), so that the lock nut 52 is indirectly mounted on the cabinet body 1 or the cabinet door 2.

[0055] The working principle is that when locking is required, the cabinet door 2 is brought close to the storage cabinet body 1 (for example, pushed manually, or driven by the door shaft assembly 3 described later) until the lock head 411 is inserted into the lock nut 52, and then the lock shaft driving component 42 drives the lock shaft component 41 to rotate, so that the lock head 411 is threadedly connected to the lock nut 52; at this time, the cabinet door 2 is in a locked state, and the cabinet door 2 cannot move away from the storage cabinet body 1 due to the threaded connection between the lock head 411 and the lock nut 52; it can ensure that the storage cavity of the storage cabinet body 1 is airtight.

[0056] When unlocking is required, the lock shaft driver 42 drives the lock shaft 41 to rotate in the opposite direction until the lock head 411 is separated from the lock matrix 52. At this time, the cabinet door 2 is in the unlocked state, and the cabinet door 2 can be away from the storage cabinet body 1; and because the lock head 411 pushes the lock matrix 52, a gap is created between the cabinet door 2 and the storage cabinet body 1; the cabinet door 2 can be opened by inserting a hand into the gap.

[0057] As can be seen from the above, the storage unit of the locker according to the first embodiment of the present invention can realize automatic locking and unlocking of the cabinet door 2; and in the unlocked state, the cabinet door 2 and the storage cabinet body 1 are aligned, making it easy to open the cabinet door 2.

[0058] The shaft lock member 41 and the shaft lock driver 42 are connected in a linear sliding manner roughly along the rotation axis of the shaft lock driver 42. The shaft lock member 41 is provided with a slot 419 with an oblate cross section, and the shaft lock driver 42 is inserted into the slot 419, so that the shaft lock member 41 and the shaft lock driver 42 are connected in a linear sliding manner roughly along the rotation axis of the shaft lock driver 42. As another embodiment, the shaft lock member 41 and the shaft lock driver 42 are connected in a linear sliding manner through a linear bearing (not shown in the drawings). This can reduce or eliminate the axial force received by the output end of the shaft lock driver 42, which is beneficial to improving the service life of the shaft lock driver 42.

[0059] The lock shaft assembly 4 also includes a constant-pressure elastic member 43, which is connected to the cabinet body 1 and the lock shaft member 41, respectively, so that the lock shaft member 41 tends to approach the lock shaft driver 42. The elastic force provided by the constant-pressure elastic member 43 is approximately constant (the deformation is approximately constant). The cabinet door 2 is driven closer to the cabinet body 1 by the lock nut assembly 5 and the lock shaft member 41, so that the holding force between the cabinet body 1 and the cabinet door 2 is approximately constant, thereby ensuring a generally stable sealing effect between the cabinet body 1 and the cabinet door 2.

[0060] The shaft lock 41 is provided with a constant pressure ear 414. The constant pressure elastic member 43 is a spring, and its two ends respectively abut against the constant pressure ear 414 and the locker body 1, so that the shaft lock 41 tends to approach the shaft lock drive 42. The constant pressure elastic member 43 is mounted on the shaft lock 41, and its axis roughly coincides with the rotation axis of the output end of the shaft lock drive 42.

[0061] The lock shaft component 41 includes a small diameter section 412 connected to the lock head 411, and the small diameter section 412 is located between the lock shaft driver 42 and the lock head 411; the diameter of the circumscribed circle of the cross section of the small diameter section 412 is the small diameter section diameter 413, and the inner diameter of the tooth top of the thread of the lock nut 52 is the thread top diameter 523, then the small diameter section diameter 413 is less than or equal to the thread top diameter 523. As a specific embodiment, the cross section of the small diameter section 412 is a circular, rectangular, or other shape. After the lock head 411 is threadedly connected to the lock nut 52, the lock shaft driver 42 drives the lock shaft component 41 to continue rotating, so that after the lock head 411 completely passes through the lock nut 52, one end of the lock head 411 abuts against one end of the lock nut 52, so that the lock head 411 and the lock nut 52 are connected in an abutting manner. At this time, even if the lock shaft driver 42 drives the lock head 411 to continue rotating (for example, because the sensor detecting the cabinet door 2 is damaged, it is mistakenly believed that the cabinet door 2 is not locked and the lock shaft driver 42 is controlled to continue rotating), the lock head 411 slips relative to the lock matrix 52, which can prevent the lock head 411 from being locked (one end of the lock head 411 abuts against one end of the inner wall of the lock matrix 52, limiting the lock head 411 from moving linearly along the rotation axis of the lock shaft driver 42). At the same time, since the thickness of the lock matrix 52 is constant, after the lock head 411 completely passes through the lock matrix 52, when one end of the lock head 411 abuts against one end of the lock matrix 52, the displacement of the lock head 411 is constant, which makes the elastic deformation of the constant pressure elastic member 43 constant, thereby ensuring a stable sealing effect between the storage cabinet body 1 and the cabinet door 2.

[0062] The shaft lock 41 includes a large-diameter section 415 with a larger diameter than the small-diameter section 412. The axial length between the large-diameter section 415 and the lock head 411 is equal to or greater than the thickness of the lock nut 52. The large-diameter section 415 is capable of linear sliding connection with the locker body 1. This provides a large contact area and high strength, while also facilitating machining of the shaft lock 41 (for example, facilitating the drilling of a hole in the shaft lock 41 to provide space for a tool recess that may be required during machining).

[0063] As another embodiment, when the lock head 411 is rotated into (i.e., away from the lock shaft driver 42) the lock mother body 52, the lock shaft member 41 can be disconnected from the output end of the lock shaft driver 42. For example, the lock shaft member 41 is provided with a slot 419, and the lock shaft driver 42 is inserted into the slot 419. When the lock head 411 is rotated into the lock mother body 52, the output end of the lock shaft driver 42 is withdrawn from the slot 419, so that the lock shaft member 41 is disconnected from the output end of the lock shaft driver 42; at this time, even if the lock shaft driver 42 continues to rotate due to a fault (such as due to sensor damage, etc.), the lock shaft driver 42 is rotating without load, which can reduce the risk of damage to the lock shaft driver 42. It should be noted that, under this embodiment, when the lock head 411 is screwed into the lock mother body 52, the lock shaft 41 can be disconnected from the output end of the lock shaft driving component 42, and the lock head 411 cannot be driven to reverse by the output end of the lock shaft driving component 42. It is necessary to rely on maintenance personnel to troubleshoot the fault and manually reverse and reset the lock head 411, thereby avoiding the use of the storage unit of the faulty locker.

[0064] As a more specific embodiment, the storage unit of the locker according to Example 1 of the present invention further includes a seal 8 disposed between the locker body 1 and the door 2. Specifically, the seal 8 is made of an elastic material such as rubber or a silicone strip, and has a closed annular or curved strip cross-section. The seal 8 is secured to the locker body 1 and / or the door 2. When the door 2 approaches the locker body 1, the locker body 1 and the door 2 clamp the seal 8. This improves the sealing effect between the locker body 1 and the door 2.

[0065] As a more specific embodiment, the storage unit of the locker according to Example 1 of the present invention further includes a door hinge assembly 3. The cabinet door 2 is hingedly connected to the cabinet body 1 via the door hinge assembly 3, which is capable of outputting rotational power, so that the cabinet door 2 is movably connected to the cabinet body 1. This enables automatic rotation of the cabinet door 2 relative to the cabinet body 1, thereby automatically opening and closing the cabinet door 2. As another embodiment, the cabinet door 2 and the cabinet body 1 are movably connected by a linear sliding connection or a detachable connection.

[0066] The lock nut assembly 5 also includes a lock nut carrier 51 disposed on the cabinet body 1 or the cabinet door 2. A plurality of lock matrices 52 are slidably connected to the lock nut carrier 51. The direction of the sliding connection between the lock matrices 52 and the lock nut carrier 51 is perpendicular to the axis of the lock head 411 and along the axis of the lock head 411. When the lock head 411 and the lock nut 52 are slightly misaligned, the lock head 411 abuts against one end of the lock nut 52, causing the lock nut 52 to slide relative to the lock nut carrier 51 and away from the axis of the lock head 411, causing the inner cavity (provided with threads) of the lock nut 52 to expand outward. This reduces the alignment accuracy requirements between the lock head 411 and the lock nut 52, making alignment easier. In addition, during the threaded connection between the lock head 411 and the lock nut 52, the lock nut 52 is forced to slide relative to the lock nut carrier 51 and away from the axis of the lock head 411, so that the lock nut 52 is separated from the lock head 411, and the contact area between the threads of the lock nut 52 and the threads of the lock head 411 is reduced, thereby making it easier for the lock head 411 to rotate relative to the lock nut 52 and improving reliability. It should be noted that the lock nut 52 can rely on the friction between the lock nut carrier 51 to achieve the rotation of the lock head 411 relative to the lock nut 52.

[0067] The outer walls of all the lock nuts 52 are combined to form a truncated cone-shaped outer wall, and the inner wall of the lock nut carrier 51 is also truncated cone-shaped. The outer walls of the lock nuts 52 are respectively fitted with the inner walls of the lock nut carrier 51; thus, there are multiple lock nuts 52 and they are respectively slidably connected to the lock nut carrier 51.

[0068] The lock nut 52 is connected to the lock nut carrier 51 in a linear sliding manner. When the lock head 411 rotates relative to the lock nut 52, the lock nut 52 does not rotate with the lock head 411. Therefore, the lock head 411 only needs to rotate a small number of turns (relative to the lock nut 52, the friction between the lock nut carrier 51 enables the lock head 411 to rotate relative to the lock nut 52) to be screwed into the same depth of the lock nut 52. The threaded connection between the lock shaft 41 and the lock nut 52 is more efficient.

[0069] The lock nut carrier 51 is provided with a sliding groove 511, and the lock nut body 52 is provided with a slider 521. The slider 521 is inserted into the sliding groove 511, so that the lock nut body 52 is linearly slidably connected to the lock nut carrier 51.

[0070] The width of the chute 511 gradually increases as it moves away from the entrance end of the lock nut carrier 51. Specifically, the chute 511 has a trapezoidal cross-section, as does the slider 521. When the slider 521 slides to the bottom of the trapezoid (the larger of the parallel sides), it can swing relative to the chute 511, allowing the lock head 411 to rotate more easily relative to the lock nut 52, resulting in higher reliability.

[0071] The lock nut assembly 5 also includes a lock nut elastic member 53. The lock nut body 52 abuts against the inner wall of the entrance end of the lock nut carrier 51. The lock nut elastic member 53 is connected to the lock nut body 52 and the lock nut carrier 51, respectively, so that the lock nut body 52 tends to approach the entrance end of the lock nut carrier 51. When the lock head 411 is rotated out of the entrance end of the lock nut carrier 51, the lock nut body 52 can ensure that the lock nut body 52 is reset, which provides high reliability.

[0072] The lock nut elastic member 53 is a spring and its two ends respectively abut against the lock nut body 52 and the inlet end of the lock nut carrier 51 , so that the lock nut body 52 tends to approach the inlet end of the lock nut carrier 51 .

[0073] The threads of the lock head 411 are two or more parallel threads that correspond to the threads of the lock nut 52. For example, the threads of the lock head 411 and the threads of the lock nut 52 are three parallel threads. This reduces the alignment accuracy requirements between the lock head 411 and the lock nut 52.

[0074] The cross-section of one end of the lock head 411 gradually decreases in diameter from the outside of the lock head 411 to the inside of the lock head 411. For example, one end of the lock head 411 may be truncated cone-shaped, with the top of the cone tangent to the side of the cone. This can reduce the alignment accuracy requirements between the lock head 411 and the lock nut carrier 51.

[0075] The inlet end of the lock nut carrier 51 is provided with a guide slope 519. The guide slope 519 can play a guiding role and can reduce the alignment accuracy requirement between the lock head 411 and the lock nut carrier 51.

[0076] As a more specific embodiment, the door hinge assembly 3 of the first embodiment of the present invention includes a door hinge driving member 32, a door hinge output shaft 33 and a force release structure 6.

[0077] The force release structure 6 includes a driving connection member 62, a transmission member 63, a force release support body 64, and a force release groove 65. As a specific embodiment, there are two or more force release grooves 65. As a specific embodiment, the cross section of the force release groove 65 is annular sector-shaped.

[0078] The drive connector 62 is connected to the rotation output end of the door shaft drive member 32; the transmission member 63 is fixedly connected to the door shaft output shaft 33. The door shaft drive member 32 is a device such as a motor that can output rotational power.

[0079] One of the force-releasing supporting body 64 and the force-releasing groove 65 is provided on the driving connecting member 62 , and the other of the force-releasing supporting body 64 and the force-releasing groove 65 is provided on the transmission member 63 , and the force-releasing supporting body 64 is inserted into the force-releasing groove 65 .

[0080] The force-releasing member 64 is directly or indirectly elastic, and the elastic force provided by the force-releasing member 64 is substantially perpendicular to the rotational axis of the door shaft drive member 32. For example, the force-releasing member 64 may be a spherical crown-shaped protrusion made of elastic plastic fixed to the drive connector 62 or the transmission member 63, thereby directly providing the force-releasing member 64 with elasticity. For example, the force-releasing member 64 may be provided with elasticity through other components, thereby indirectly providing the force-releasing member 64 with elasticity.

[0081] Working principle: Before use, the door shaft output shaft 33 is fixedly connected to the cabinet door 2 (for example, by the embodiment described below), and the door shaft driving member 32 is installed on the storage cabinet body 1. When the door shaft driving member 32 is controlled to start, the door shaft output shaft 33 drives the cabinet door 2 to rotate, thereby realizing automatic opening and closing of the cabinet door 2.

[0082] When the cabinet door 2 reaches the extreme position during the process of opening or closing, for example, the cabinet door 2 is closed until it is supported by the storage cabinet body 1, or the cabinet door 2 is opened until it is supported by the storage cabinet body 1, so that the cabinet door 2 cannot continue to rotate; at this time, the force release supporting body 64 undergoes elastic deformation and slides out of the force release groove 65, so that the door shaft drive member 32 can continue to rotate and release the force.

[0083] That is, it can prevent the door shaft driver 32 from being overloaded and damaged. At the same time, there is no need to determine the rotation angle of the door shaft driver 32 based on the position of the cabinet door 2. Accordingly, the door shaft driver 32 does not need to select a more expensive motor such as a servo motor, thereby reducing costs.

[0084] The force-releasing structure 6 also includes a force-releasing elastic member 66, which is respectively connected to the force-releasing supporting body 64, so that the force-releasing supporting body 64 has a tendency to approach the force-releasing groove 65; at the same time, the force-releasing supporting body 64 is indirectly elastic. The force-releasing elastic member 66 is respectively connected to the force-releasing supporting body 64, the drive connecting member 62 or the transmission member 63 in a resisting manner, so that the force-releasing supporting body 64 has a tendency to approach the force-releasing groove 65. It can make the force-releasing supporting body 64 have a greater elastic force, ensuring the force-releasing effect. As a specific embodiment, the outer wall of the drive connecting member 62 and the inner wall of the transmission member 63 are both circular, and the drive connecting member 62 is embedded in the transmission member 63.

[0085] The transmission member 63 is provided with a through-receiving cavity 636, and the force-releasing supporting bodies 64 are exposed from both ends of the accommodating cavity 636, and the force-releasing elastic members 66 respectively resist the force-releasing supporting bodies 64. The elastic forces provided by the two force-releasing supporting bodies 64 are equal, which can ensure that the transmission member 63 is centered relative to the driving connecting member 62 (the axis lines coincide), and will not resist each other unilaterally to cause a large friction force, thereby ensuring a stable force-releasing effect. As a specific embodiment, the force-releasing elastic member 66 is a spring, the cross-section of the accommodating cavity 636 is circular, the force-releasing supporting body 64 is spherical, and the force-releasing supporting body 64 is embedded in the accommodating cavity 636.

[0086] The door hinge assembly 3 also includes a door hinge carrier 31, to which a door hinge driver 32 is fixed. A drive connector 62 or transmission member 63 is hingedly connected to the door hinge carrier 31. The door hinge assembly 3 can be preassembled into a single piece before use, facilitating ease of use and assembly. For example, the side cross-section of the drive connector 62 is circular and embedded in the door hinge carrier 31, allowing the drive connector 62 to be hingedly connected to the door hinge carrier 31. This reduces or prevents wobble during rotation of the drive connector 62.

[0087] The cabinet further includes a cabinet body 1 and a cabinet door 2 hingedly connected to the cabinet body 1; a door shaft driving member 32 is disposed on the cabinet body 1 (for example, via a door shaft carrier 31), and a door shaft output shaft 33 is fixedly connected to the cabinet door 2. The door shaft output shaft 33 drives the cabinet door 2 to rotate, thereby enabling the cabinet door 2 to be automatically opened and closed.

[0088] It also includes an axis connecting member 21 provided with an axis connecting hole 211; the axis connecting member 21 extends outward (i.e., away from the direction of the rotation axis centerline of the door axis driving member 32) to form a door connecting ear 219; the door connecting ear 219 is fixedly connected to the cabinet door 2, the door axis output shaft 33 is inserted into the axis connecting hole 211, and the transmission member 63 is against the cabinet door 2, so that the transmission member 63 is fixedly connected to the door axis output shaft 33. As a specific embodiment, the cross-section of the door axis output shaft 33 is oblate (the shape of a circle separated by two parallel straight lines and without two circular segments) and is embedded in the axis connecting hole 211. This facilitates the assembly between the cabinet door 2 and the door axis output shaft 33.

[0089] As a more specific implementation, the door hinge assembly 3 of the second embodiment of the present invention includes a door hinge driving member 32, a door hinge output shaft 33 and a force release structure 6.

[0090] The force release structure 6 includes a driving connection member 62 , a transmission member 63 , a force release supporting body 64 , and a force release groove 65 .

[0091] The driving connecting member 62 is connected to the rotation output end of the door shaft driving member 32; the transmission member 63 is fixedly connected to the door shaft output shaft 33.

[0092] One of the force-releasing supporting body 64 and the force-releasing groove 65 is provided on the driving connecting member 62 , and the other of the force-releasing supporting body 64 and the force-releasing groove 65 is provided on the transmission member 63 , and the force-releasing supporting body 64 is inserted into the force-releasing groove 65 .

[0093] The inner wall of the force release groove 65 is directly or indirectly elastic. The drive connector 62 is fixedly connected to the rotation output end of the door shaft driver 32 and inserted into the force release groove 65. The drive connector 62 is approximately perpendicular to the rotation axis of the door shaft driver 32. For example, the inner wall of the force release groove 65 is made of plastic (which is elastic), so that the inner wall of the force release groove 65 directly has elastic force.

[0094] The cross section of the force release groove 65 is approximately triangular.

[0095] The cross section of the force release groove 65 is approximately an isosceles triangle.

[0096] The angle of the side wall of the force release groove 65 is a groove wall angle 659 , and the groove wall angle 659 is greater than or equal to 45 degrees and less than 90 degrees.

[0097] The driving connecting member 62 is cylindrical; the top of the triangular cross section of the force release groove 65 fits with the driving connecting member 62.

[0098] A positioning protrusion 652 is provided on the side wall of the force release groove 65 .

[0099] Working principle: when the cabinet door 2 reaches the extreme position during the process of opening or closing, for example, the cabinet door 2 is closed until it is supported by the storage cabinet body 1, or the cabinet door 2 is opened until it is supported by the storage cabinet body 1, so that the cabinet door 2 cannot continue to rotate; at this time, the inner wall of the force release groove 65 undergoes elastic deformation and the force release supporting body 64 slides out of the force release groove 65, so that the door shaft drive member 32 can continue to rotate and release the force.

[0100] That is, it can prevent the door shaft driver 32 from being overloaded and damaged. At the same time, there is no need to determine the rotation angle of the door shaft driver 32 based on the position of the cabinet door 2. Accordingly, the door shaft driver 32 does not need to select a more expensive motor such as a servo motor, thereby reducing costs.

[0101] The door hinge assembly 3 also includes a door hinge carrier 31, to which a door hinge driver 32 is fixed. A drive connector 62 or transmission member 63 is hingedly connected to the door hinge carrier 31. The door hinge assembly 3 can be preassembled into a single piece before use, facilitating ease of use and assembly. For example, the side cross-section of the transmission member 63 is circular and embedded within the door hinge carrier 31. This reduces or prevents shaking of the transmission member 63 during rotation.

[0102] The cabinet further includes a cabinet body 1 and a cabinet door 2 hingedly connected to the cabinet body 1; a door shaft driving member 32 is disposed on the cabinet body 1 (for example, via a door shaft carrier 31), and a door shaft output shaft 33 is fixedly connected to the cabinet door 2. The door shaft output shaft 33 drives the cabinet door 2 to rotate, thereby enabling the cabinet door 2 to be automatically opened and closed.

[0103] The device further includes a force-releasing elastic member 66, which is respectively connected to the transmission member 63, the cabinet body 1, or the cabinet door 2 (for example, passing through the cabinet body 1 and abutting against the cabinet door 2), so that the transmission member 63 tends to approach the door shaft driver 32. The transmission member 63 is connected to the cabinet door 2 so that the transmission member 63 can drive the cabinet door 2 to rotate while sliding linearly relative to the rotation output end of the door shaft driver 32. This allows the inner wall of the force-releasing groove 65 to have a large elastic force, ensuring a force-releasing effect.

[0104] The cabinet door 2 is further provided with a shaft connecting member 21 having a shaft connecting hole 211. The shaft connecting member 21 extends outward (i.e., away from the rotation axis of the door shaft driving member 32) to form a door connecting ear 219. The door connecting ear 219 is fixedly connected to the cabinet door 2. The door shaft output shaft 33 is inserted into the shaft connecting hole 211, so that the transmission member 63 is connected to the cabinet door 2, allowing the transmission member 63 to drive the cabinet door 2 to rotate while being able to slide linearly relative to the rotation output end of the door shaft driving member 32. This facilitates the assembly between the cabinet door 2 and the door shaft output shaft 33.

[0105] The release elastic member 66 is a spring and is substantially coaxial with the rotation axis of the door shaft drive member 32. The release elastic member 66 abuts against the cabinet door 2. The release elastic member 66 can rotate synchronously with the transmission member 63 and the cabinet door 2 without generating noise and having high reliability.

[0106] The terms "first", "second", etc. used in the present invention do not indicate any order, quantity or importance, but are only used for distinction.

[0107] As used herein, the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

[0108] Terms indicating orientation or position used in the present invention, such as top, bottom, side, longitudinal, lateral, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are intended to reflect relative positions rather than absolute positions.

[0109] As used herein, terms such as "substantially," "entirely," "approximately," and "closely" are qualifiers intended to indicate that a characteristic exists but a certain degree of deviation is permitted. The amount of such deviation may vary depending on the specific context; for example, the specific context of dimensional deviation may include, but is not limited to, national standards for dimensional tolerances.

Claims

1. A storage unit of a storage cabinet, comprising a storage cabinet body (1), a lock shaft assembly (4), a lock nut assembly (5) and a cabinet door (2) movably connected to the storage cabinet body (1); one of the lock shaft assembly (4) and the lock nut assembly (5) is arranged on the storage cabinet body (1), and the other of the lock shaft assembly (4) and the lock nut assembly (5) is arranged on the cabinet door (2); comprising a door shaft driving member (32), a door shaft output shaft (33) and a force release structure (6); the force release structure (6) comprises a driving connecting member (62), a transmission member (63), a force release supporting body (64), and a force release groove (65); the driving connecting member (62) is connected to the rotation output end of the door shaft driving member (32); the transmission member (63) is fixedly connected to the door shaft output shaft (33); the door shaft driving member (32) is fixedly connected to the storage cabinet body (1), and the door shaft output shaft (33) is fixedly connected to the cabinet door (2); Its characteristics are: The shaft lock assembly (4) includes a shaft lock drive member (42) and a shaft lock member (41) connected to the output end of the shaft lock drive member (42); the shaft lock drive member (42) is a motor, and the shaft lock member (41) includes a locking head (411) provided with a thread; the lock nut assembly (5) includes a lock nut body (52), and the locking head (411) is connected to the lock nut body (52) by thread or in abutting manner; the shaft lock member (41) and the shaft lock drive member (42) are connected in a straight line sliding manner approximately along the rotation axis of the shaft lock drive member (42); the shaft lock assembly (4) also includes a constant pressure elastic member (43), and the constant pressure elastic member (43) are respectively connected to the storage cabinet body (1) and the lock shaft member (41), so that the lock shaft member (41) has a tendency to approach the lock shaft driving member (42); one of the force-releasing supporting body (64) and the force-releasing groove (65) is arranged on the driving connecting member (62), and the other of the force-releasing supporting body (64) and the force-releasing groove (65) is arranged on the transmission member (63), and the force-releasing supporting body (64) is inserted into the force-releasing groove (65); the force-releasing supporting body (64) is directly or indirectly elastic, and the elastic force provided by the force-releasing supporting body (64) is approximately perpendicular to the rotation axis of the door shaft driving member (32).

2. The storage unit of the locker according to claim 1, wherein: The shaft locking member (41) is provided with a constant pressure ear (414), the constant pressure elastic member (43) is a spring and its two ends are respectively against the constant pressure ear (414) and the storage cabinet body (1), the constant pressure elastic member (43) is sleeved on the shaft locking member (41) and its axis roughly coincides with the rotation axis of the output end of the shaft locking drive member (42).

3. The storage unit of the locker according to claim 1, wherein: The shaft lock component (41) includes a small diameter section (412) connected to the lock head (411), and the small diameter section (412) is located between the shaft lock driving component (42) and the lock head (411); the diameter of the circumscribed circle of the cross section of the small diameter section (412) is the small diameter section diameter (413), and the inner diameter of the tooth top of the thread of the lock mother body (52) is the thread top diameter (523), so that the small diameter section diameter (413) is less than or equal to the thread top diameter (523).

4. The storage unit of the locker according to claim 3, wherein: The shaft lock component (41) comprises a large diameter section (415) having a diameter larger than that of the small diameter section (412); the axial length between the large diameter section (415) and the lock head (411) is greater than or equal to the thickness of the lock mother body (52).

5. The storage unit of the locker according to claim 1, wherein: When the lock head (411) is screwed into the lock body (52), the shaft lock component (41) can be disconnected from the output end of the shaft lock driving component (42).

6. The storage unit of the locker according to claim 5, wherein: The shaft lock member (41) is provided with a slot (419), and the shaft lock driver (42) is embedded in the slot (419). When the lock head (411) is screwed into the lock mother body (52), the output end of the shaft lock driver (42) is drawn out from the slot (419).

7. The storage unit of the locker according to any one of claims 1 to 6, characterized in that: It also includes a sealing member (8) arranged between the storage cabinet body (1) and the cabinet door (2).

8. The storage unit of the locker according to any one of claims 1 to 6, characterized in that: The cabinet door (2) and the storage cabinet body (1) are hingedly connected via the door shaft assembly (3) capable of outputting rotational power.

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