Plane lock

Abstract

The utility model relates to a plane lock which comprises a lock shell, a lock bolt, a rotating shaft piece, a torsion spring and a handle. A containing cavity is formed in the lock shell. The lock bolt comprises a first support arm, a second support arm and a lock block; the first support arm and the second support arm are respectively provided with a linkage part, and the first support arm is connected with the second support arm through a locking block; the linkage part of the first support arm and the linkage part of the second support arm penetrate through the via hole of the lock shell and extend into the accommodating cavity; first sealing rings are respectively arranged between the first support arm and the lock shell and between the second support arm and the lock shell; the rotating shaft piece penetrates through the through holes of the linkage parts of the first support arm and the second support arm, and second sealing rings are respectively arranged between one large head part of the rotating shaft piece and the first support arm and between the other large head part of the rotating shaft piece and the second support arm; one end of the handle is synchronously and rotationally connected with the linkage parts of the first support arm and the second support arm; a spring coil of the torsion spring is sleeved on the rotating shaft piece, one torsion arm of the torsion spring acts on the handle, and the other torsion arm of the torsion spring acts on the containing cavity. The utility model has the characteristics of good waterproof performance, good sealing performance, wide application range and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a plane lock. Background Art

[0002] Existing flat locks are generally like the technical solution of Chinese patent application No. 2019216680446, entitled "A cabinet lock that is easy to operate", where the handle and the lock bolt are integrally formed. After installation, the lock bolt passes through the bottom surface of the accommodating cavity of the base. Such a structure requires a through hole to be formed on the bottom surface of the base to connect the bottom of the accommodating cavity with the outside world, so that after application, the accommodating cavity of the base is connected to the inside of the cabinet. When such a flat lock is applied to the outer box door of a cabinet or a motorhome, water or water vapor outside the cabinet can easily enter the cabinet through the through hole of the base, causing damage to electrical components in the cabinet or moisture in the items, so that the existing flat locks have the disadvantages of not having waterproof performance, poor sealing, and a narrow application range. Based on the shortcomings of the existing flat locks when in use, it is urgent to improve the existing flat locks. Utility Model Content

[0003] The utility model aims to provide a plane lock, which has the advantages of simple structure, scientific design, good waterproof performance, good sealing performance and wide application range.

[0004] The technical solution of the utility model is implemented as follows: a flat lock, comprising a lock shell, a lock bolt, a rotating shaft, a torsion spring and a handle; a receiving cavity is formed on the front of the lock shell; in particular,

[0005] The lock bolt comprises a first arm, a second arm and a lock block; one end of each of the first arm and the second arm is provided with a linkage portion, a through hole is formed on each of the linkage portions of the first arm and the second arm, and the other end of the first arm is fixedly connected with the other end of the second arm through the lock block;

[0006] A through hole communicating with the accommodating cavity is formed on two opposite side surfaces of the lock shell; the linkage part of the first arm and the linkage part of the second arm correspond to the two through holes of the lock shell one by one, and the linkage part of the first arm and the linkage part of the second arm respectively pass through the through holes of the lock shell and extend into the accommodating cavity, so that the lock bolt can be rotatably mounted on the lock shell; the linkage part of the first arm and the linkage part of the second arm are arranged opposite to each other; a first sealing ring is respectively arranged between the first arm and the outer wall surface of the lock shell and between the second arm and the outer wall surface of the lock shell; the first sealing ring between the first arm and the outer wall surface of the lock shell is sleeved on the linkage part of the first arm, and the first sealing ring between the second arm and the outer wall surface of the lock shell is sleeved on the linkage part of the second arm;

[0007] The rotating shaft member passes through the through hole of the linkage part of the first arm and the second arm, and a large head is formed at both ends of the rotating shaft member; a second sealing ring is respectively arranged between the large head of the rotating shaft member and the side of the first arm facing away from the lock housing, and between the other large head of the rotating shaft member and the side of the second arm facing away from the lock housing, and each second sealing ring is sleeved on the rotating shaft member;

[0008] One end of the handle extends into the accommodating cavity and is synchronously rotatably connected with the linkage parts of the first arm and the second arm; a locking mechanism is also provided between the handle and the lock shell, and the locking mechanism causes the handle to be locked with the lock shell when the handle covers the accommodating cavity;

[0009] The spring coil of the torsion spring is sleeved on the rotating shaft member, one torsion arm of the torsion spring acts on a surface of the handle facing the lock housing, and the other torsion arm of the torsion spring acts on the bottom surface of the accommodating cavity.

[0010] The lock bolt and the handle of the present invention are separately constructed, and after the lock bolt is rotatably installed on the lock shell, a first sealing ring is respectively provided between the first arm and the outer wall surface of the lock shell, and between the second arm and the outer wall surface of the lock shell; after the rotating shaft member passes through the linkage part of the first arm and the linkage part of the second arm, a second sealing ring is respectively provided between a large head of the rotating shaft member and a side of the first arm facing away from the lock shell, and between another large head of the rotating shaft member and a side of the second arm facing away from the lock shell; such a structure enables the present invention to be applied to a cabinet in a humid environment or a cabinet that is often in contact with water, so that the accommodating cavity of the lock shell and the internal space of the cabinet are sealed, and water vapor or water will not enter the interior of the cabinet from the gap between the linkage parts of the first arm and the second arm and the through hole of the lock shell, nor will it enter the interior of the cabinet from the gap between the through hole of the linkage parts of the first arm and the second arm and the rotating shaft member, so that the internal environment of the cabinet is kept dry, so that the present invention has the advantages of good waterproof performance, good sealing and wide application range.

[0011] Furthermore, the locking block and the first arm are integrally formed.

[0012] Furthermore, a connecting hole is formed on one end of the second arm connected to the locking block; one end of the locking block is connected to the first arm, and a connecting protrusion is formed on the other end of the locking block; the connecting protrusion passes through the connecting hole of the second arm, and a connecting head is formed on the connecting protrusion, and the second arm is clamped and fixed between the connecting head and the end face of the locking block.

[0013] Furthermore, the rotating shaft member is a rivet, a large head of the rotating shaft member is a rivet head, and another large head of the rotating shaft member is formed by a reverse riveting process.

[0014] Furthermore, the locking mechanism includes a button and a card block; the card block is arranged in the accommodating cavity of the lock shell; the button is rotatably mounted on the side of the handle facing the lock shell, and the rotation axis of the button relative to the handle is parallel to the axis of the rotating shaft; a through hole is formed on the handle to expose the button; the torsion arm of the torsion spring on the handle is pressed against the button, so that the button rotates and keeps close contact with the handle; a lock hook portion is formed on the side of the button facing the lock shell, and when the handle is covered on the accommodating cavity, the lock hook portion is engaged with the card block to lock the handle and the lock shell.

[0015] Furthermore, a lock core is rotatably mounted on the handle; the lock core is located on the side of the lock hook portion facing away from the card block, and a push block is mounted on the lock core; when the handle is closed on the accommodating cavity, rotating the lock core can cause the push block to abut against the lock hook portion, so that the button cannot rotate relative to the handle.

[0016] Furthermore, a screw hole is provided on the locking block, a bolt is threadedly connected to the screw hole, a double nut structure is threadedly connected to the bolt, and the bolt is fixed to the locking block through the double nut structure.

[0017] Furthermore, an annular eave is formed on the edge of the cavity opening of the accommodating cavity of the lock shell; and a sealing gasket is also included; the sealing gasket is sleeved on the lock shell, and the sealing gasket is located on the bottom surface of the annular eave.

[0018] The utility model has the advantages of simple structure, scientific design, good waterproof performance, good sealing performance and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment in a locked state.

[0020] Figure 2 It is a schematic diagram of the structure of the embodiment in the unlocked state.

[0021] Figure 3 It is a schematic diagram of the top view of the structure of the embodiment in the locked state.

[0022] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction.

[0023] Figure 5 It is a schematic diagram of the main structure of the embodiment in a locked state.

[0024] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the BB direction (without the torsion spring).

[0025] Figure 7 Schematic diagram of the structure of the lock bolt of the embodiment.

[0026] Explanation of the reference numerals: 1-lock housing; 11-accommodating chamber; 12-annular eaves; 13-first top pressure surface; 14-second top pressure surface; 2-lock bolt; 21-first support arm; 22-second support arm; 23-lock block; 231-connecting protrusion; 232-connecting head; 24-linkage part; 25-perforation; 3-rotating shaft; 31-large head; 4-torsion spring; 5-handle; 6-first sealing ring; 7-second sealing ring; 8-locking mechanism; 81-button; 82-block; 83-lock hook; 84-top pressure part; 9-lock cylinder; 91-top pressure block; 92-notch; 10-bolt; 20-double nut structure; 30-sealing gasket. DETAILED DESCRIPTION

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a flat lock of this embodiment includes a lock housing 1, a lock bolt 2, a rotating shaft 3, a torsion spring 4 and a handle 5; a receiving cavity 11 is formed on the front of the lock housing 1;

[0028] The lock bolt 2 includes a first arm 21, a second arm 22 and a locking block 23; one end of each of the first arm 21 and the second arm 22 is provided with a linkage portion 24, and a through hole 25 is formed on each of the linkage portions 24 of the first arm 21 and the second arm 22, and the other end of the first arm 21 is fixedly connected with the other end of the second arm 22 through the locking block 23;

[0029] A through hole connected to the accommodating chamber 11 is formed on two opposite side surfaces of the lock housing 1; the linkage portion 24 of the first arm 21 and the linkage portion 24 of the second arm 22 correspond to the two through holes of the lock housing 1 one by one, and the linkage portion 24 of the first arm 21 and the linkage portion 24 of the second arm 22 respectively pass through the through holes of the lock housing 1 and extend into the accommodating chamber 11, so that the lock bolt 2 can be rotatably mounted on the lock housing 1; the linkage portion 24 of the first arm 21 and the linkage portion 24 of the second arm 22 are arranged opposite to each other; a first sealing ring 6 is respectively provided between the first arm 21 and the outer wall surface of the lock housing 1 and between the second arm 22 and the outer wall surface of the lock housing 1; the first sealing ring 6 between the first arm 21 and the outer wall surface of the lock housing 1 is sleeved on the linkage portion 24 of the first arm 21, and the first sealing ring 6 between the second arm 22 and the outer wall surface of the lock housing 1 is sleeved on the linkage portion 24 of the second arm 22;

[0030] The rotating shaft member 3 passes through the through hole 25 of the linkage part 24 of each of the first arm 21 and the second arm 22, and a large head 31 is formed at each end of the rotating shaft member 3; a second sealing ring 7 is respectively arranged between the large head 31 of the rotating shaft member 3 and a side of the first arm 21 facing away from the lock housing 1, and between the other large head 31 of the rotating shaft member 3 and a side of the second arm 22 facing away from the lock housing 1, and each second sealing ring 7 is sleeved on the rotating shaft member 3;

[0031] One end of the handle 5 extends into the accommodating cavity 11 and is synchronously rotatably connected with the linkage parts 24 of the first arm 21 and the second arm 22; in order to enable the handle 5 to be synchronously rotatably connected with the first arm 21 and the second arm 22, the linkage parts 24 of the first arm 21 and the second arm 22 are each formed with a prism-shaped structure part and a cylindrical part rotatably mounted on the through hole of the lock shell 1, and the through holes 25 of the linkage parts 24 of the first arm 21 and the second arm 22 are arranged along their respective midlines, and the prism-shaped structure part is specifically a hexagonal prism, and one end of the handle 5 is formed with a hexagonal hole for the prism-shaped structure parts of the first arm 21 and the second arm 22 to penetrate; a locking mechanism 8 is also provided between the handle 5 and the lock shell 1, and the locking mechanism 8 causes the handle 5 to be locked with the lock shell 1 when the handle 5 covers the accommodating cavity 11;

[0032] The coil of the torsion spring 4 is sleeved on the rotating shaft 3, one torsion arm of the torsion spring 4 acts on the side of the handle 5 facing the lock housing 1, and the other torsion arm of the torsion spring 4 acts on the bottom surface of the accommodating cavity 11. With such a structure, after the planar lock is applied to a cabinet in a humid environment or a use environment that is often in contact with water, the accommodating cavity 11 of the lock housing 1 and the internal space of the cabinet are sealed, and water vapor or water will not enter the interior of the cabinet from the gap between the respective linkage parts 24 of the first arm 21 and the second arm 22 and the through hole of the lock housing 1, nor will it enter the interior of the cabinet from the gap between the through hole 25 of the respective linkage parts 24 of the first arm 21 and the second arm 22 and the rotating shaft 3, so that the internal environment of the cabinet is kept dry, so that the planar lock has the advantages of good waterproof performance, good sealing and wide application range.

[0033] In order to make the structure of the lock bolt 2 more solid and reduce the assembly of parts and components, and improve production efficiency, as Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, the locking block 23 and the first arm 21 are integrally formed.

[0034] In order to make the connection structure between the second arm 22 and the locking block 23 more reasonable, as shown in FIG. Figure 1 , Figure 5 , Figure 6 , Figure 7As shown, a connecting hole is formed on one end of the second arm 22 connected to the locking block 23; one end of the locking block 23 is connected to the first arm 21, and a connecting protrusion 231 is formed on the other end of the locking block 23; the connecting protrusion 231 passes through the connecting hole of the second arm 22, and a connecting head 232 is formed on the connecting protrusion 231, and the second arm 22 is clamped and fixed between the connecting head 232 and the end face of the locking block 23, and the connecting head 232 on the connecting protrusion 231 is formed by flattening one end of the connecting protrusion 231 by molding.

[0035] In order to make the structure of the rotating shaft 3 more reasonable, Figure 5 , Figure 6 As shown, the rotating shaft member 3 is a rivet, a large head 31 of the rotating shaft member 3 is a rivet head, and another large head 31 of the rotating shaft member 3 is formed by a reverse riveting process.

[0036] In order to make the structure of the locking mechanism 8 more reasonable, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the locking mechanism 8 includes a button 81 and a block 82; the block 82 is arranged in the accommodating cavity 11 of the lock shell 1; the button 81 is rotatably mounted on the side of the handle 5 facing the lock shell 1, and the rotation axis of the button 81 relative to the handle 5 is parallel to the axis of the rotating shaft 3; a through hole is formed on the handle 5 to expose the button 81; the torsion arm of the torsion spring 4 acting on the handle 5 is pressed against the button 81, so that the button 81 rotates and keeps close contact with the handle 5; a lock hook portion 83 is formed on the side of the button 81 facing the lock shell 1, and when the handle 5 is covered on the accommodating cavity 11, the lock hook portion 83 is clamped with the block 82 to lock the handle 5 and the lock shell 1.

[0037] In order to prevent the plane lock from being opened by mistake and improve the safety of the plane lock, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a lock core 9 is rotatably mounted on the handle 5; the lock core 9 is located on the side of the lock hook portion 83 facing away from the clamping block 82, and a pressing block 91 is mounted on the lock core 9; when the handle 5 is covered on the accommodating cavity 11, the lock core 9 can be rotated to cause the pressing block 91 to abut against the lock hook portion 83, so that the button 81 cannot rotate relative to the handle 5. In order to make the structure of the lock core 9 preventing the button 81 from rotating more reasonable, a pressing portion 84 is formed on the side of the lock hook portion 83 facing the pressing block 91; the pressing block 91 is a cylindrical member, and a notch 92 is formed on the bottom surface of the pressing block 91; when the button 81 needs to be unlocked, the lock core 9 can be rotated to cause the notch 92 of the pressing block 91 to face the pressing portion 84, so that the button 81 can be pressed to unlock.

[0038] In order to adjust the tightness of the door during application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, a screw hole is provided on the lock block 23, a bolt 10 is threadedly connected to the screw hole, a double nut structure 20 is threadedly connected to the bolt 10, and the bolt 10 is fixed to the lock block 23 through the double nut structure 20. In such a structure, the distance between the bolt head of the bolt 10 and the lock block 23 can be adjusted through the double nut structure 20, and the bolt head of the bolt 10 is against the inner surface of the cabinet door when locking.

[0039] In order to make the plane lock more sealed during application, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the lock case 1 is formed with an annular eave 12 along the edge of the cavity 11; and further comprises a sealing gasket 30; the sealing gasket 30 is sleeved on the lock case 1, and the sealing gasket 30 is located on the bottom surface of the annular eave 12. When in use, the sealing gasket 30 is sandwiched between the annular eave 12 and the outer surface of the cabinet, so as to prevent water from flowing into the cabinet through the gap between the annular eave 12 and the outer surface of the cabinet.

[0040] In order to make the structure of the plane lock more reasonable and prevent the lock bolt 2 from rotating too much under the action of the torsion spring 4, Figure 1 , Figure 2 , Figure 5 As shown, a first pressing surface 13 and a second pressing surface 14 are formed on the lock housing 1; the first pressing surface 13 is located on the side of the first arm 21 facing away from the lock block 23; the second pressing surface 14 is located on the side of the second arm 22 facing away from the lock block 23; in the unlocked state, the first arm 21 of the lock bolt 2 abuts against the first pressing surface 13, and the second arm 22 abuts against the second pressing surface 14.

[0041] In order to increase the structural strength of the lock bolt 2 , the first arm 21 , the second arm 22 and the lock block 23 of the lock bolt 2 are all made of stainless steel.

Claims

1. A flat lock, comprising a lock housing, a lock bolt, a rotating shaft, a torsion spring and a handle; a receiving cavity is formed on the front of the lock housing; characterized in that: The lock bolt comprises a first arm, a second arm and a lock block; one end of each of the first arm and the second arm is provided with a linkage portion, a through hole is formed on each of the linkage portions of the first arm and the second arm, and the other end of the first arm is fixedly connected with the other end of the second arm through the lock block; A through hole communicating with the accommodating cavity is formed on two opposite side surfaces of the lock shell; the linkage part of the first arm and the linkage part of the second arm correspond to the two through holes of the lock shell one by one, and the linkage part of the first arm and the linkage part of the second arm respectively pass through the through holes of the lock shell and extend into the accommodating cavity, so that the lock bolt can be rotatably mounted on the lock shell; the linkage part of the first arm and the linkage part of the second arm are arranged opposite to each other; a first sealing ring is respectively arranged between the first arm and the outer wall surface of the lock shell and between the second arm and the outer wall surface of the lock shell; the first sealing ring between the first arm and the outer wall surface of the lock shell is sleeved on the linkage part of the first arm, and the first sealing ring between the second arm and the outer wall surface of the lock shell is sleeved on the linkage part of the second arm; The rotating shaft member passes through the through hole of the linkage part of the first arm and the second arm, and a large head is formed at both ends of the rotating shaft member; a second sealing ring is respectively arranged between the large head of the rotating shaft member and the side of the first arm facing away from the lock housing, and between the other large head of the rotating shaft member and the side of the second arm facing away from the lock housing, and each second sealing ring is sleeved on the rotating shaft member; One end of the handle extends into the accommodating cavity and is synchronously rotatably connected with the linkage parts of the first arm and the second arm; a locking mechanism is also provided between the handle and the lock shell, and the locking mechanism causes the handle to be locked with the lock shell when the handle covers the accommodating cavity; The spring coil of the torsion spring is sleeved on the rotating shaft member, one torsion arm of the torsion spring acts on a surface of the handle facing the lock housing, and the other torsion arm of the torsion spring acts on the bottom surface of the accommodating cavity.

2. A flat lock according to claim 1, characterized in that: The locking block and the first arm are integrally formed.

3. A flat lock according to claim 2, characterized in that: A connecting hole is formed on one end of the second arm connected to the locking block; one end of the locking block is connected to the first arm, and a connecting protrusion is formed on the other end of the locking block; the connecting protrusion passes through the connecting hole of the second arm, and a connecting head is formed on the connecting protrusion, and the second arm is clamped and fixed between the connecting head and the end face of the locking block.

4. A flat lock according to claim 1, characterized in that: The rotating shaft part is a rivet, a large head of the rotating shaft part is a rivet head, and the other large head of the rotating shaft part is formed by a reverse riveting process.

5. A flat lock according to claim 1, characterized in that: The locking mechanism includes a button and a card block; the card block is arranged in the accommodating cavity of the lock shell; the button is rotatably mounted on the side of the handle facing the lock shell, and the rotation axis of the button relative to the handle is parallel to the axis of the rotating shaft; a through hole is formed on the handle to expose the button; the torsion arm of the torsion spring on the handle is pressed against the button, so that the button rotates and keeps close contact with the handle; a lock hook portion is formed on the side of the button facing the lock shell, and when the handle covers the accommodating cavity, the lock hook portion is engaged with the card block to lock the handle and the lock shell.

6. A flat lock according to claim 5, characterized in that: A lock core is rotatably mounted on the handle; the lock core is located on the side of the lock hook portion facing away from the clamping block, and a pressing block is mounted on the lock core; when the handle is closed on the accommodating cavity, rotating the lock core can cause the pressing block to abut against the lock hook portion, so that the button cannot rotate relative to the handle.

7. A flat lock according to claim 1, characterized in that: A screw hole is provided on the locking block, a bolt is threadedly connected to the screw hole, a double nut structure is threadedly connected to the bolt, and the bolt is fixed to the locking block through the double nut structure.

8. A flat lock according to claim 1, characterized in that: The lock shell is provided with an annular eave along the edge of the cavity opening of the accommodating cavity; and further comprises a sealing gasket; the sealing gasket is sleeved on the lock shell, and the sealing gasket is located on the bottom surface of the annular eave.

9. A flat lock according to claim 1, characterized in that: A first pressing surface and a second pressing surface are formed on the lock housing; the first pressing surface is located on the side of the first arm facing away from the lock block; the second pressing surface is located on the side of the second arm facing away from the lock block; in the unlocked state, the first arm of the lock bolt abuts against the first pressing surface, and the second arm abuts against the second pressing surface.

10. A flat lock according to any one of claims 1 to 9, characterized in that: The first support arm, the second support arm and the locking block of the locking bolt are all made of stainless steel.

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