CN114439324A - Tool-free quick locking structure of box door lock and locking method thereof - Google Patents
Tool-free quick locking structure of box door lock and locking method thereof Download PDFInfo
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- CN114439324A CN114439324A CN202210287986.XA CN202210287986A CN114439324A CN 114439324 A CN114439324 A CN 114439324A CN 202210287986 A CN202210287986 A CN 202210287986A CN 114439324 A CN114439324 A CN 114439324A
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- box door
- pull rod
- box
- handle
- elastic sleeve
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 17
- 238000009966 trimming Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/52—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
- E05B65/5207—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement
- E05B65/5215—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement sliding
- E05B65/5223—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement sliding perpendicular to the surface on which the lock is mounted
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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Abstract
The invention relates to a tool-free quick locking structure of a box door lock and a locking method thereof, wherein the tool-free quick locking structure comprises a box door, a pull rod is arranged inside and outside the box door in a penetrating way, a handle is rotatably arranged at the end part of the pull rod positioned outside the box door, and a first binding surface and a second binding surface which are adjacent are arranged on the handle; the pull rod is vertical to the axial direction of the pull rod relative to the rotation center line of the handle, and the distance between the rotation center line and the first attaching surface is smaller than the distance between the rotation center line and the second attaching surface; the pull rod positioned at the inner side of the box door is sleeved with an elastic sleeve; when the second binding surface is bound with the box door, the elastic sleeve is compressed and deformed axially; through the rotating of handle, the pull rod is outwards pulled to the axial for the elastic sleeve compression deformation of suit on the pull rod inboard, and the elastic sleeve circumferencial direction size increase after the deformation, and then compress tightly on the box wall, thereby realize the locking between chamber door and the box, easy operation is convenient quick, and the practicality is good.
Description
Technical Field
The invention relates to the technical field of box door locks, in particular to a tool-free quick locking structure of a box door lock and a locking method thereof.
Background
For an electrical case needing to frequently open a door plate, a mechanical lock with a clamping and hanging hard-contact spring bolt structure is widely used, and an anti-corrosion protective layer at the contact part with a case body is easily scratched in the using process, so that the case is scrapped in advance; when the door plate of the case is locked with the case body, most of the lock tongues extend into the case body, the lock body is positioned on the inner side of the sealing rubber strip in a closed shape, and on the premise of requiring high IP grade, the joint of the lock body and the door plate needs to be sealed, so that the cost is increased, and hidden danger is left for reliability; on the other hand, the vibration in the transportation process easily causes the case locking side door plate to droop due to gravity sliding, and the case locking side door plate is a short plate which is difficult to avoid in the case body of the existing lock structure.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a tool-free quick locking structure of a box door lock with a reasonable structure and a locking method thereof, so that the box door lock is locked with a box body, the operation is simple, convenient and quick, the box door lock cannot be damaged due to hard contact with the box body in the opening and closing use process, and the practicability is good.
The technical scheme adopted by the invention is as follows:
a tool-free quick lock structure of a box door lock comprises a box door, wherein a pull rod is arranged inside and outside the box door in a penetrating mode, a handle is rotatably arranged at the end portion of the pull rod positioned outside the box door, and a first binding surface and a second binding surface which are adjacent to each other are arranged on the handle; the pull rod is perpendicular to the axial direction of the pull rod relative to the rotation center line of the handle, and the distance between the rotation center line and the first attaching surface is smaller than the distance between the rotation center line and the second attaching surface; the pull rod positioned at the inner side of the box door is sleeved with an elastic sleeve; when the second binding face is bound with the box door, the elastic sleeve is compressed and deformed axially.
As a further improvement of the above technical solution:
the end part of the pull rod is provided with a rotating pin in a penetrating way along the diameter direction, the pull rod is rotatably arranged relative to the handle through the rotating pin, and the axial direction of the rotating pin is consistent with the rotating central line of the pull rod.
A cross-surface groove is formed through the first attaching surface and the second attaching surface, the end part of the pull rod extends into the cross-surface groove, and a rotating pin at the end part of the pull rod penetrates through the cross-surface groove and is locked with the handle; and in the process that the pull rod rotates relative to the handle, the pull rod moves between the first attaching surface and the second attaching surface along the cross-surface groove.
The pull rod is a chamfered edge pin, and a chamfered edge hole matched with the section of the chamfered edge pin is formed in the box door.
The box door is provided with a guide piece in a penetrating and welding mode, the guide piece is provided with a trimming hole in a penetrating mode, the trimming hole is matched with the cross section of the trimming pin, and the trimming pin penetrates through the trimming hole.
The inner end of the pull rod extends outwards to form a bulge, or a nut is locked at the inner end of the pull rod.
The box door lock is characterized by also comprising a box body, wherein one side of the box door is rotatably arranged with the box body, and the other opposite side of the box door is attached and locked with the box body through a box door lock; the box body is provided with a through hole for the elastic sleeve to pass through, and the diameter size of the elastic sleeve after compression deformation is larger than that of the through hole.
The side surface of the box body facing the box door is fixedly provided with a bracket, the through hole is arranged on the bracket in a penetrating way, and the elastic sleeve passing through the through hole is positioned between the bracket and the box body; the inner wall surface of the through hole extends to form a conical surface, and a small opening of the conical surface is arranged towards the box door.
The side surface of the box door facing the box body is convexly provided with a sealing strip, and the sealing strip is parallel to the edges of the box door and the box body which are jointed and locked; the edge of the box body is bent towards the direction of the box door and extends to form a folded edge, and when the box body and the box door are attached and closed, the folded edge is close to and extrudes force to be applied to the sealing strip.
A locking method of a tool-free quick lock structure of a box door lock comprises the following steps:
rotating the handle to make the first jointing surface joint with the box door, and the elastic sleeve is in a free state;
the box door is pushed to approach the box body until the elastic sleeve at the inner end of the pull rod penetrates through the through hole on the box body;
rotating the handle, wherein the surface of the handle, which is attached to the box door, is changed from the first attaching surface to the second attaching surface until the second attaching surface is attached to the box door; in the process, the handle gradually pulls the pull rod outwards in the axial direction, the axial size of the pull rod positioned on the inner side of the box door is reduced, the elastic sleeve is deformed by compression, and the diameter size of the elastic sleeve after final compression is larger than the size of the through hole in the box body, so that locking between the box door and the box body is realized.
The invention has the following beneficial effects:
the elastic sleeve on the pull rod extends into the corresponding lock hole of the box body, and the pull rod is axially and outwards pulled through the rotation of the handle, so that the elastic sleeve sleeved on the inner side of the pull rod is compressed and deformed, the circumferential size of the deformed elastic sleeve is increased and is larger than the lock hole on the box body, and the elastic sleeve is further pressed on the circumferential wall surface of the lock hole of the box body, so that the locking between the box door and the box body is realized, and the operation is simple, convenient and quick; in addition, the elastic sleeve is a flexible part, the elastic sleeve after deformation is in contact with the box body and is pressed tightly to realize locking, and hard contact is replaced by flexible contact, so that the damage to the appearance of the box body in the opening, closing and locking processes is effectively avoided, and the practicability is good;
the invention also comprises the following advantages:
the arrangement of the cross-surface groove provides a guide for the relative rotation between the pull rod and the handle, so that the opening and closing operation of the box door lock is more stable, reliable and smooth;
the pull rod is in a chamfered edge pin structure, so that the pull rod is prevented from rotating relative to the box door along the axial direction and only moves along the axial direction, and the reliability of the use of the box door lock is assisted;
the arrangement of the guide piece on the box door improves the contact engagement length of the box door and the pull rod, so that the matching between the pull rod and the box door is more stable.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
FIG. 3 is a schematic view of the installation of the present invention on the box door and box body.
Fig. 4 is a schematic view of the installation of the guide piece and the sealing strip on the door of the refrigerator.
FIG. 5 is a schematic view showing the elastic sleeve of the present invention before it is inserted into the through hole of the case.
Fig. 6 is a cross-sectional view of fig. 5.
FIG. 7 is a schematic view of the elastic sleeve of the present invention before locking after extending into the through hole of the box body.
Fig. 8 is a cross-sectional view of fig. 7.
FIG. 9 is a schematic view of the elastic sleeve of the present invention after it is inserted into the through hole of the box and locked.
Fig. 10 is a cross-sectional view of fig. 9.
Fig. 11 is a partial enlarged view of a portion a in fig. 10.
Wherein: 1. a handle; 2. rotating the pin; 3. a pull rod; 4. a guide piece; 5. an elastic sleeve; 6. a nut; 7. a support; 8. a box door; 9. a box body;
11. a first binding face; 12. a second binding surface; 13. a cross-surface groove; 14. a pin hole;
41. cutting an edge hole;
71. a conical surface;
81. a sealing strip;
91. and (7) folding edges.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and fig. 2, the tool-free quick lock structure for a box door lock of the present embodiment includes a box door 8, a pull rod 3 is installed inside and outside the box door 8, a handle 1 is rotatably installed at an end of the pull rod 3 located outside the box door 8, and the handle 1 is provided with a first abutting surface 11 and a second abutting surface 12 which are adjacent to each other; the rotating center line of the pull rod 3 relative to the handle 1 is vertical to the axial direction of the pull rod 3, and the distance a between the rotating center line and the first attaching surface 11 is smaller than the distance b between the rotating center line and the second attaching surface 12; the pull rod 3 positioned at the inner side of the box door 8 is sleeved with an elastic sleeve 5; when the second binding surface 12 is bound with the box door 8, the elastic sleeve 5 is compressed and deformed axially.
After the part of the elastic sleeve 5 on the pull rod 3 extends into the corresponding lock hole of the box body 9, the pull rod 3 is pulled outwards in the axial direction through the rotation of the handle 1, so that the elastic sleeve 5 sleeved on the inner side of the pull rod 3 is compressed and deformed, the size of the circumferential direction of the elastic sleeve 5 is increased and is larger than the lock hole in the box body 9 after the deformation, and then the elastic sleeve is pressed on the circumferential wall surface of the lock hole of the box body 9, and the locking between the box door 8 and the box body 9 is realized.
In this embodiment, elastic sleeve 5 is the flexible component, compresses tightly with 9 contacts of box through elastic sleeve 5 after the deformation and realizes the locking, has replaced hard contact by the flexible contact, has effectively avoided the damage of switching locking in-process to 9 outward appearances of box, has still avoided the contact pitting corrosion that the hard contact that the lock frequently opened leads to because of the friction simultaneously.
In this embodiment, one of the first attaching surface 11 and the second attaching surface 12 of the handle 1 is attached to the side surface of the box door 8, and when the first attaching surface 11 is attached to the side surface of the box door 8, the elastic sleeve 5 is in a free state, and the box door lock is in an open state; when the second binding surface 12 is bound with the side surface of the box door 8, the elastic sleeve 5 is in a compressed state, and the box door lock is in a closed state.
In this embodiment, when the pull rod 3 is pulled outward in the axial direction, the inner end of the pull rod 3 limits the elastic sleeve 5 to fall off, so that the elastic sleeve 5 is compressed and deformed due to the shortening of the sheathing length on the pull rod 3.
The end part of the pull rod 3 is provided with a rotating pin 2 in a penetrating way along the diameter direction, the pull rod 3 is rotatably arranged relative to the handle 1 through the rotating pin 2, and the axial direction of the rotating pin 2 is consistent with the rotating central line of the pull rod 3.
In this embodiment, the end of the pull rod 3 may also be rotationally riveted with the handle 1 by a rivet, which is a rotation center line of the pull rod 3 in the axial direction.
A cross-surface groove 13 is formed through the first attaching surface 11 and the second attaching surface 12, the end part of the pull rod 3 extends into the cross-surface groove 13, and the rotating pin 2 at the end part of the pull rod 3 penetrates through the cross-surface groove 13 to be locked with the handle 1; when the pull rod 3 rotates relative to the handle 1, the pull rod 3 moves between the first attachment surface 11 and the second attachment surface 12 along the cross surface groove 13; the arrangement of the cross-surface groove 13 provides a guide for the relative rotation between the pull rod 3 and the handle 1, so that the opening and closing operation of the box door lock is more stable, reliable and smooth.
In this embodiment, a pin hole 14 for the rotation pin 2 to be locked is formed through the handle 1 and the span groove 13.
In this embodiment, the cross-surface groove 13 may not be provided, the pull rod 3 is attached to the surface of the handle 1, the surface is adjacently connected to the first attachment surface 11 and the second attachment surface 12, the pull rod 3 is attached to the surface of the handle 1 to rotate relatively, and the surface serves as an attachment guide for the relative rotation of the pull rod 3.
The pull rod 3 is a chamfered edge pin, and a chamfered edge hole 41 matched with the section of the chamfered edge pin is formed in the box door 8; the pull rod 3 is in a chamfered edge pin structure, so that the rotation of the pull rod relative to the box door 8 along the axial direction is avoided, and the pull rod only moves along the axial direction, so that the reliability of the use of the box door lock is assisted.
As shown in fig. 3 and 4, the door 8 is welded with the guide piece 4, the guide piece 4 is provided with a trimming hole 41, the trimming hole 41 is matched with the cross section of the trimming pin, and the trimming pin penetrates through the trimming hole 41; the setting of guide vane 4 on chamber door 8 has promoted the contact linking length of chamber door 8 with pull rod 3 for the cooperation between pull rod 3 and the chamber door 8 is more stable.
In this embodiment, the guide vane 4 is a stepped annular structure, and includes an outer cylinder with a large diameter and an outer cylinder with a small diameter which are axially consistent; wherein the outer cylinder of minor diameter clamps with chamber door 8 and cooperates, and the outer cylinder of major diameter is hugged closely on 8 medial surfaces of chamber door, and the outer cylinder lateral surface of major diameter is close to with elastic sleeve 5.
The end side of the inner end of the pull rod 3 extends outwards to form a bulge, or the end of the inner end of the pull rod 3 is locked with a nut 6, and the elastic sleeve 5 sleeved on the pull rod 3 is axially limited by the bulge or the nut 6, so that the elastic sleeve 5 is placed to be separated.
The refrigerator further comprises a refrigerator body 9, one side of the refrigerator door 8 is rotatably installed with the refrigerator body 9, and the other opposite side of the refrigerator door 8 is attached to and locked with the refrigerator body 9 through a refrigerator door lock; the box body 9 is provided with a through hole for the elastic sleeve 5 to pass through, the diameter size of the elastic sleeve 5 after compression deformation is larger than that of the through hole, and the through hole is a lock hole arranged on the box body 9.
The side surface of the box body 9 facing the box door 8 is fixedly provided with the support 7, the through hole is arranged on the support 7 in a penetrating manner, the elastic sleeve 5 which penetrates through the through hole is positioned between the support 7 and the box body 9, the requirement of forming a lock hole on the box body 9 is avoided through the arrangement of the support 7, and the sealing performance after the box body 9 and the box door 8 are matched and locked is guaranteed through effective assistance; the inner wall surface of the through hole extends to form a conical surface 71, a small opening of the conical surface 71 is arranged towards the box door 8, and the diameter of the small opening of the conical surface 71 is consistent with the diameter of the through hole.
In this embodiment, support 7 can be the U type structure of opening towards box 9, and the bottom of two parallel arms of U type structure all extends there is the protrusion, and the protrusion cartridge realizes the location to box 9 in, then welds dress with support 7 and box 9 and fastens.
In this embodiment, when the elastic sleeve 5 extends into the through hole and the elastic sleeve 5 is compressed and deformed under the pulling of the pull rod 3, the expanded outer wall surface of the elastic sleeve 5 is tightly attached to the conical surface 71 to realize locking, and the arrangement of the conical surface 71 helps to increase the attachment area between the outer wall surface of the elastic sleeve 5 and the bracket 7 during locking, so as to improve the reliability of locking.
The side surface of the box door 8 facing the box body 9 is convexly provided with a sealing strip 81, and the sealing strip 81 is parallel to the edges of the box door 8 and the box body 9 which are jointed and locked; the edge of the box body 9 is bent towards the direction of the box door 8 and extends to form a folded edge 91, when the box body 9 and the box door 8 are attached and closed, the folded edge 91 is close to and extrudes force applied to the sealing strip 81, so that the sealing performance between the box door 8 and the box body 9 after locking is effectively guaranteed, and the boosting is used for promoting and guaranteeing the IP grade.
In the embodiment, an included angle alpha between the first binding surface 11 and the second binding surface 12 is 70-95 degrees, and the first binding surface and the second binding surface are in transition connection through an arc structure;
in this embodiment, the first attachment surface 11 is located at the end of the handle 1 in the length direction, and when the first attachment surface 11 is attached to the side surface of the box door 8, the handle 1 is approximately vertical to the box door 8; the second attaching surface 12 is located above or below the first attaching surface 11, and the rotating handle 1 is pushed upwards or downwards to pull the pull rod 3.
In this embodiment, the second attaching surface 12 is located below the first attaching surface 11, the rotating handle 1 is pushed downward to pull the pull rod 3, the downward force application locking mode is convenient for daily operation, and the length direction of the handle 1 is similar to the side surface of the box door 8 in a locking state.
In this embodiment, the locking manner of the embedded expansion between the box door 8 and the box body 9 can prevent the non-hinge side of the box door 8 from sagging due to the action of gravity, thereby greatly prolonging the mechanical life of the chassis; on the other hand, the locking mode of embedding expansion can also avoid abnormal damage of the case caused by bumping and shaking in the logistics process, thereby reducing the after-sale maintenance cost of the production manufacturer.
The locking method of the tool-free quick locking structure of the box door lock comprises the following steps:
the first step is as follows: as shown in fig. 5 and fig. 6, the handle 1 is rotated to make the first abutting surface 11 abut against the door 8, and at this time, the elastic sleeve 5 is in a free state, which is a standby operation, so that the elastic sleeve 5 can smoothly extend into the lock hole of the door 8;
the second step is that: as shown in fig. 7 and 8, the box door 8 is pushed to approach the box body 9 until the elastic sleeve 5 at the inner end of the pull rod 3 passes through the through hole on the box body 9; at this time, the folded edge 91 of the box body 9 is close to the sealing strip 81 of the box door 8, and the folded edge 91 is tightly attached to the sealing strip 81 under the external force;
the third step: as shown in fig. 9, by rotating the handle 1, the surface of the handle 1, which is attached to the box door 8, changes from the first attachment surface 11 to the second attachment surface 12 until the second attachment surface 12 is attached to the box door 8; in the process, the distance between the central line of the rotating pin 2, namely the rotating central line of the pull rod 3 relative to the handle 1, and the side surface of the box door 8 is increased, the handle 1 gradually pulls the pull rod 3 outwards in the axial direction from a smaller distance a to a larger distance b, the axial size of the pull rod 3 positioned on the inner side of the box door 8 is reduced, the elastic sleeve 5 is compressed and deformed, and the diameter size of the elastic sleeve 5 after final compression is larger than the size of the through hole on the box body 9, as shown in fig. 10 and 11, the locking between the box door 8 and the box body 9 is realized.
In this embodiment, the outer wall surface of the compressed elastic sleeve 5 is tightly attached to the tapered surface 71 of the bracket 7, thereby realizing locking.
The invention realizes the soft contact locking between the box door and the box body, has simple, convenient and quick operation and can reliably ensure the sealing performance after the locking.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (10)
1. The utility model provides a case lock exempts from instrument to lock structure soon, includes chamber door (8), its characterized in that: a pull rod (3) is arranged inside and outside the box door (8) in a penetrating mode, a handle (1) is rotatably arranged at the end portion of the pull rod (3) located on the outer side of the box door (8), and a first binding surface (11) and a second binding surface (12) which are adjacent to each other are arranged on the handle (1); the pull rod (3) is perpendicular to the axial direction of the pull rod (3) relative to the rotation center line of the handle (1), and the distance between the rotation center line and the first attaching surface (11) is smaller than the distance between the rotation center line and the second attaching surface (12); the pull rod (3) positioned at the inner side of the box door (8) is sleeved with an elastic sleeve (5); when the second binding surface (12) is bound with the box door (8), the elastic sleeve (5) is compressed and deformed axially.
2. The tool-free quick locking structure of a box door lock as claimed in claim 1, characterized in that: the end part of the pull rod (3) is provided with a rotating pin (2) in a penetrating way along the diameter direction, the pull rod (3) is rotatably arranged relative to the handle (1) through the rotating pin (2), and the axial direction of the rotating pin (2) is consistent with the rotating central line of the pull rod (3).
3. A box door lock tool-free quick-locking structure as claimed in claim 2, wherein: a cross-surface groove (13) is formed through the first attaching surface (11) and the second attaching surface (12), the end of the pull rod (3) extends into the cross-surface groove (13), and the rotating pin (2) at the end of the pull rod (3) penetrates through the cross-surface groove (13) and is locked with the handle (1); in the process that the pull rod (3) rotates relative to the handle (1), the pull rod (3) moves between the first attaching surface (11) and the second attaching surface (12) along the cross surface groove (13).
4. A box door lock tool-free quick-locking structure as claimed in claim 2, wherein: the pull rod (3) is a chamfered edge pin, and the box door (8) is provided with a chamfered edge hole (41) matched with the section of the chamfered edge pin.
5. The box door lock tool-free quick-locking structure of claim 4, wherein: the box door (8) is provided with a guide sheet (4) in a penetrating and welding mode, the guide sheet (4) is provided with a trimming hole (41) in a penetrating mode, the trimming hole (41) is matched with the cross section of a trimming pin, and the trimming pin penetrates through the trimming hole (41).
6. A box door lock tool-free quick-locking structure as claimed in claim 1, wherein: the inner end of the pull rod (3) extends outwards to form a bulge, or the inner end of the pull rod (3) is locked with a nut (6).
7. A box door lock tool-free quick-locking structure as claimed in claim 1, wherein: the refrigerator door is characterized by further comprising a refrigerator body (9), one side of the refrigerator door (8) is rotatably installed with the refrigerator body (9), and the other opposite side of the refrigerator door (8) is attached to the refrigerator body (9) through a refrigerator door lock and locked; the box body (9) is provided with a through hole for the elastic sleeve (5) to pass through, and the diameter size of the elastic sleeve (5) after compression deformation is larger than that of the through hole.
8. A box door lock tool-free quick lock structure as claimed in claim 7, wherein: a bracket (7) is fixedly arranged on the side surface of the box body (9) facing the box door (8), the through hole is arranged on the bracket (7) in a penetrating manner, and the elastic sleeve (5) penetrating through the through hole is positioned between the bracket (7) and the box body (9); a conical surface (71) extends from the inner wall surface of the through hole, and a small opening of the conical surface (71) is arranged towards the box door (8).
9. A box door lock tool-free quick lock structure as claimed in claim 8, wherein: the side surface of the box door (8) facing the box body (9) is convexly provided with a sealing strip (81), and the sealing strip (81) is parallel to the edges of the box door (8) and the box body (9) which are jointed and locked; the edge of the box body (9) is bent towards the direction of the box door (8) and extends to form a folded edge (91), and when the box body (9) and the box door (8) are attached and closed, the folded edge (91) is close to and extrudes and applies force to the sealing strip (81).
10. The locking method of the tool-free quick-locking structure of the box door lock as claimed in claim 7, is characterized in that: the method comprises the following steps:
rotating the handle (1) to enable the first attaching surface (11) to be attached to the box door (8), wherein the elastic sleeve (5) is in a free state;
the box door (8) is pushed to approach the box body (9) until the elastic sleeve (5) at the inner end of the pull rod (3) penetrates through the through hole on the box body (9);
rotating the handle (1), wherein the surface, attached to the box door (8), of the handle (1) is changed from the first attaching surface (11) to the second attaching surface (12) until the second attaching surface (12) is attached to the box door (8); in the process, the handle (1) gradually pulls the pull rod (3) outwards in the axial direction, the axial size of the pull rod (3) positioned on the inner side of the box door (8) is reduced, the elastic sleeve (5) is compressed and deformed, the diameter size of the elastic sleeve (5) after final compression is larger than the size of a through hole in the box body (9), and locking between the box door (8) and the box body (9) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210287986.XA CN114439324A (en) | 2022-03-23 | 2022-03-23 | Tool-free quick locking structure of box door lock and locking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210287986.XA CN114439324A (en) | 2022-03-23 | 2022-03-23 | Tool-free quick locking structure of box door lock and locking method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114439324A true CN114439324A (en) | 2022-05-06 |
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ID=81359705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210287986.XA Pending CN114439324A (en) | 2022-03-23 | 2022-03-23 | Tool-free quick locking structure of box door lock and locking method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114439324A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4763935A (en) * | 1987-03-25 | 1988-08-16 | Southco, Inc. | Door or panel fastener |
| US5931516A (en) * | 1998-01-06 | 1999-08-03 | Southco, Inc. | Swell latch assembly |
| CN1307165A (en) * | 2000-01-25 | 2001-08-08 | 泷源制造株式会社 | Rotary operating door lock handle means capable of pulling out |
| US20040154361A1 (en) * | 2003-02-07 | 2004-08-12 | Dohn Trempala | Locking cap system |
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2022
- 2022-03-23 CN CN202210287986.XA patent/CN114439324A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4763935A (en) * | 1987-03-25 | 1988-08-16 | Southco, Inc. | Door or panel fastener |
| US5931516A (en) * | 1998-01-06 | 1999-08-03 | Southco, Inc. | Swell latch assembly |
| CN1307165A (en) * | 2000-01-25 | 2001-08-08 | 泷源制造株式会社 | Rotary operating door lock handle means capable of pulling out |
| US20040154361A1 (en) * | 2003-02-07 | 2004-08-12 | Dohn Trempala | Locking cap system |
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Application publication date: 20220506 |