CN112049524A

CN112049524A - Anti-theft door lock

Info

Publication number: CN112049524A
Application number: CN202011042836.XA
Authority: CN
Inventors: 秦松; 黄连好
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2020-12-08

Abstract

The invention relates to the field of locks, in particular to a security door lock which comprises a door lock main body, wherein first sliding grooves are formed in two sides of the front side of the door lock main body, a second sliding groove is formed in the middle of the front side of the door lock main body and is of an arc-shaped structure, a handle is rotatably connected to the door lock main body at the circle center of the second sliding groove, third sliding grooves are formed in the upper end and the lower end of the handle, the third sliding grooves are communicated with the outer portion of one side, away from the door lock main body, of the handle, and second screw holes are formed in the middle of one. According to the door lock, the first protection plate and the second protection plate are arranged on the door lock main body, the fixing mechanism is arranged on the first protection plate, the inserting mechanism is arranged on the second protection plate, and the fixing mechanism and the inserting mechanism are used for connecting the first protection plate and the second protection plate together to seal the door lock main body when the door lock is used, so that a lock hole of the door lock main body is isolated from the outside, and moisture in air is prevented from entering the interior of the door lock main body to corrode and damage mechanical elements in the door lock main body.

Description

Anti-theft door lock

Technical Field

The invention relates to the field of locks, in particular to an anti-theft door lock.

Background

The lock is one of important components on the anti-theft door and is used for locking the anti-theft door and preventing thieves from entering a room to steal.

When the burglary-resisting door lock that uses at present, because it does not have any protective structure to set up on the lock of most burglary-resisting doors, when meetting rainy or snowy day, the inside of lock is entered through saying to humid air, corrode inside partial mechanical element easily, if when peripheral air is comparatively dry, produce static easily when locking handle and user's hand contact, make the user feel uncomfortable, and when the handle number of times of pulling locking is too much, cause the handle to rock easily, influence the staff and use.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a security door lock, which solves the problems that when the existing security door lock is used, as no protective structure is arranged on the locks of most security doors, wet air enters the interior of the lock through the lock in rainy and snowy days, part of mechanical elements in the lock are easily corroded, if peripheral air is dry, static electricity is easily generated when the locked handle is in contact with the hand of a user, the user feels uncomfortable, and when the locked handle is pulled for too many times, the handle is easily shaken, and the use of workers is influenced.

The technical scheme adopted by the invention for solving the technical problems is as follows: a security door lock comprises a door lock main body, wherein first sliding grooves are formed in two sides of the front side of the door lock main body, a second sliding groove is formed in the middle of the front side of the door lock main body and is of an arc-shaped structure, a handle is rotatably connected to the door lock main body at the circle center of the second sliding groove, third sliding grooves are formed in the upper end and the lower end of the handle, the third sliding grooves are communicated with the outer portion of one side, away from the door lock main body, of the handle, second screw holes are formed in the middle of one side, away from the door lock main body, of the handle, an anti-static sleeve is installed on the peripheral outer wall of one side, away from the door lock main body, a mounting hole is formed in one side, close to the door lock main body, of the handle, a limiting mechanism is installed in the mounting hole, the upper end and the lower end of the front side, fixing mechanisms are installed on two sides of the lower end of the front side of the first protection plate, inserting mechanisms are installed on two sides of the upper end of the front side of the second protection plate, and the inserting mechanisms are matched with the fixing mechanisms on the same side.

Specifically, prevent that static cover includes fixed cover, fixed cover is established on the peripheral outer wall of handle, equal fixedly connected with card strip on the upper and lower end inner wall of fixed cover, the inside of the equal sliding connection of card strip at homonymy third spout, the cover is established and fixedly connected with rubber sleeve on the peripheral outer wall of fixed cover, one side middle part that the lock main part was kept away from to fixed cover runs through and threaded connection has first screw thread branch, first screw thread branch is close to the inside of one end threaded connection at the second screw of lock main part, the one end fixedly connected with runner that the lock main part was kept away from to first screw thread branch.

Specifically, stop gear includes the dead lever, peg graft in the inside of mounting hole in the front of dead lever, the first slider of back fixedly connected with of dead lever, first slider sliding connection is in the inside of second spout, first screw has been seted up in the front of dead lever, the inside threaded connection of first screw has second screw thread branch, the front of second screw thread branch extends to the outside and the fixedly connected with bull stick of first screw, the diameter of the diameter ratio of bull stick is big, bull stick sliding connection is in the inside of mounting hole.

Specifically, the front surface of the rotating rod is fixedly connected with a rotating plate, and the front surface of the rotating plate is flush with the front surface of the handle.

Concretely, fixed establishment all includes the card frame, the card frame all is U-shaped structure and equal fixed connection on first guard plate, fixed chamber has all been seted up to the positive inside of card frame, the back in fixed chamber all runs through and has seted up logical groove, the equal sliding connection in inside in fixed chamber has the slide, the equal fixedly connected with extrusion head in the back of slide, the equal fixedly connected with branch in the positive middle part of slide, branch all overlaps on being close to the one end circumference outer wall of place slide and is equipped with first compression spring, the equal fixed connection in the back of first compression spring is in the front of homonymy slide, the equal fixed connection in the front of first compression spring is on the positive inner wall in the fixed chamber in place.

Specifically, the one end that the place slide was kept away from to branch all runs through and sliding connection is on the positive lateral wall in the fixed chamber in place, the equal fixedly connected with clamp plate of one end that the place slide was kept away from to branch.

The plug-in mechanism all includes the picture peg, the equal fixed connection of picture peg is on the second guard plate, the upper end of picture peg openly all is seted up flutedly, the spacing groove has all been seted up on the both sides inner wall of recess, the equal sliding connection in inside of recess has the spacing head, the equal sliding connection in both sides of spacing head is in the inside of homonymy spacing groove, the equal fixedly connected with second compression spring in the back of spacing head, the equal fixed connection in the back of second compression spring is on the back inner wall of place recess.

Specifically, the size of first guard plate and second guard plate is the same, the equal fixedly connected with second slider in both sides lower extreme at the first guard plate back and the second guard plate back both sides upper end.

The invention has the beneficial effects that:

(1) according to the door lock, the first protection plate and the second protection plate are arranged on the door lock main body, the fixing mechanism is arranged on the first protection plate, the inserting mechanism is arranged on the second protection plate, and the fixing mechanism and the inserting mechanism are used for connecting the first protection plate and the second protection plate together to seal the door lock main body when the door lock is used, so that a lock hole of the door lock main body is isolated from the outside, and moisture in air is prevented from entering the interior of the door lock main body to corrode and damage mechanical elements in the door lock main body.

(2) The anti-static sleeve is arranged on the handle, the hand of a user is separated from the handle by the anti-static sleeve, and the static electricity generated in the process that the user pulls the handle is prevented from being electrified to the user, so that the user feels uncomfortable.

(3) The limiting mechanism is arranged on the handle, and when the handle is used, the fixed rod, the first sliding block, the second threaded support rod and the rotating rod of the limiting mechanism are used for pulling one side of the handle connected with the door lock main body, so that the phenomenon that when the handle is pulled for too many times, the part connected with the handle and the door lock main body is loosened, and the use of workers is influenced is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of the external structure provided by the present invention;

fig. 2 is a schematic structural view of a first sliding chute and a second sliding chute provided by the invention;

FIG. 3 is a cut-away view of the handle and anti-static cover of the present invention as connected;

FIG. 4 is a schematic structural view of a limiting mechanism provided in the present invention;

FIG. 5 is a schematic structural view of a fixing mechanism provided in the present invention;

FIG. 6 is a schematic structural diagram of a plugging mechanism provided in the present invention;

FIG. 7 is a schematic structural view of the fixing mechanism and the plugging mechanism provided by the present invention when they are connected;

fig. 8 is a schematic diagram of the first protection plate and the second protection plate according to the present invention.

In the figure: 1. a door lock main body; 2. a first chute; 3. a second chute; 4. a handle; 5. an anti-static sleeve; 51. fixing a sleeve; 52. clamping the strip; 53. a rubber sleeve; 54. a first threaded strut; 55. a rotating wheel; 6. mounting holes; 7. a limiting mechanism; 71. fixing the rod; 72. a first slider; 73. a first screw hole; 74. a second threaded strut; 75. a rotating rod; 76. rotating the plate; 8. a fixing mechanism; 81. clamping a frame; 82. a fixed cavity; 83. a through groove; 84. a slide plate; 85. an extrusion head; 86. a strut; 87. pressing a plate; 88. a first compression spring; 9. a plug-in mechanism; 91. inserting plates; 92. a groove; 93. a limiting groove; 94. a limiting head; 95. a second compression spring; 10. a first guard plate; 11. a second guard plate; 12. a second slider; 13. a second screw hole; 14. and a third chute.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the anti-theft door lock according to the present invention includes a door lock main body 1, wherein both sides of the front surface of the door lock main body 1 are provided with first sliding grooves 2, the middle part of the front surface of the door lock main body 1 is provided with second sliding grooves 3, the second sliding grooves 3 are of an arc structure, a handle 4 is rotatably connected to the door lock main body 1 at the center of the circle of the second sliding grooves 3, both upper and lower ends of the handle 4 are provided with third sliding grooves 14, the third sliding grooves 14 are communicated with the outside of one side of the handle 4 away from the door lock main body 1, the middle part of one side of the handle 4 away from the door lock main body 1 is provided with a second screw hole 13, the outer wall of the periphery of one side of the handle 4 away from the door lock main body 1 is provided with an anti-static cover 5, one side of the handle 4 close to the door lock, lower extreme difference sliding connection has first guard plate 10 and second guard plate 11 on the front of lock main part 1, the equal sliding connection of second slider 12 is in the inside of the first spout 2 of homonymy, fixing mechanism 8 is all installed to the both sides of the positive lower extreme of first guard plate 10, grafting mechanism 9 is all installed to the both sides of the positive upper end of second guard plate 11, grafting mechanism 9 all with the 8 phase-matches of homonymy fixing mechanism, connect grafting mechanism 9 in the inside of homonymy fixing mechanism 8 during the use, link together first guard plate 10 and second guard plate 11, seal lock main part 1, avoid the moisture in the air to get into the inside of lock main part 1 through the keyhole of lock main part 1, the inside mechanical element of corrosion damage lock main part 1.

Specifically, the fixing mechanisms 8 all include a clamping frame 81, the clamping frame 81 is of a U-shaped structure and is fixedly connected to the first protection plate 10, a fixing cavity 82 is formed in the front of the clamping frame 81, a through groove 83 is formed in the back of the fixing cavity 82 in a penetrating manner, a sliding plate 84 is slidably connected to the inside of the fixing cavity 82, an extrusion head 85 is fixedly connected to the back of the sliding plate 84, a supporting rod 86 is fixedly connected to the middle of the front of the sliding plate 84, one end of the supporting rod 86, far away from the sliding plate 84, is slidably connected to the side wall of the front of the fixing cavity 82 in a penetrating manner, a pressing plate 87 is fixedly connected to one end of the supporting rod 86, far away from the sliding plate 84, a first compression spring 88 is sleeved on the circumferential outer wall of one end of the supporting rod 86, near the sliding plate 84, and the back of the first compression spring 88 is fixedly connected to the front, the front surfaces of the first compression springs 88 are fixedly connected to the inner wall of the front surface of the fixed cavity 82, the plugging mechanism 9 is fixed by the clamping frame 81 during connection, and the plugging mechanism 9 is extruded by the extrusion head 85 during disassembly, so that the plugging mechanism 9 is conveniently pulled out from the clamping frame 81.

Specifically, grafting mechanism 9 all includes picture peg 91, the equal fixed connection of picture peg 91 is on second guard plate 11, recess 92 has all been seted up on the upper end of picture peg 91 openly, spacing groove 93 has all been seted up on recess 92's the both sides inner wall, the equal sliding connection in inside of recess 92 has spacing head 94, the equal sliding connection in both sides of spacing head 94 is in the inside of homonymy spacing groove 93, the equal fixedly connected with second compression spring 95 in the back of spacing head 94, the equal fixed connection in the back of second compression spring 95 is on the back inner wall of place recess 92, and through with spacing head 94 card in fixing mechanism 8's inside, link together picture peg 91 and fixing mechanism 8, and then link together first guard plate 10 and second guard plate 11.

Specifically, first guard plate 10 is the same with the size of second guard plate 11, the equal fixedly connected with second slider 12 in both sides lower extreme at the first guard plate 10 back and the 11 back both sides upper end of second guard plate is convenient for connect first guard plate 10 and second guard plate 11 on lock main part 1, protects lock main part 1.

Specifically, prevent that static cover 5 includes fixed cover 51, fixed cover 51 cover is established on the peripheral outer wall of handle 4, equal fixedly connected with card strip 52 on the upper and lower end inner wall of fixed cover 51, the equal sliding connection of card strip 52 is in the inside of homonymy third spout 14, establish and fixedly connected with rubber sleeve 53 on the peripheral outer wall of fixed cover 51, one side middle part that lock main part 1 was kept away from to fixed cover 51 runs through and threaded connection has first screw thread branch 54, first screw thread branch 54 is close to the inside of one end threaded connection at second screw 13 of lock main part 1, the one end fixedly connected with runner 55 that lock main part 1 was kept away from to first screw thread branch 54 utilizes fixed cover 51 and rubber sleeve 53 to keep apart handle 4, avoids user's hand direct and handle 4 contact to produce static.

Specifically, the limiting mechanism 7 includes a fixing rod 71, the front of the fixing rod 71 is inserted into the mounting hole 6, the back of the fixing rod 71 is fixedly connected with a first slider 72, the first slider 72 is slidably connected inside the second sliding groove 3, the front of the fixing rod 71 is provided with a first screw hole 73, the inner thread of the first screw hole 73 is connected with a second threaded support rod 74, the front of the second threaded support rod 74 extends to the outside of the first screw hole 73 and is fixedly connected with a rotating rod 75, the diameter of the rotating rod 75 is larger than that of the fixing rod 71, the rotating rod 75 is slidably connected inside the mounting hole 6, the front of the rotating rod 75 is fixedly connected with a rotating plate 76, the front of the rotating plate 76 is flush with the front of the handle 4, one side of the handle 4 connected with the door lock main body 1 is pulled by the fixing rod 71, the first slider 72, the second threaded support rod 74 and the rotating rod 75, the load of the connecting part of the handle 4 and the door lock main body 1 is reduced, and the phenomenon that the handle 4 shakes due to excessive pulling times is avoided.

When the anti-theft door is used, the anti-theft door is installed on the anti-theft door, the first protection plate 10 and the second protection plate 11 are slid towards the direction close to the handle 4 after the anti-theft door is closed until the first protection plate 10 and the second protection plate 11 are abutted together, one end, close to the first protection plate 10, of the insertion plate 91 of the insertion mechanism 9 is inserted into the clamping frame 81 of the fixing mechanism 8 at the moment, the limiting head 94 is firstly extruded into the groove 92 by the inner wall of the clamping frame 81 in the process, the second compression spring 95 is in a compressed state at the moment, when the groove 92 is aligned with the through groove 83 of the fixing mechanism 8, the limiting head 94 penetrates through the through groove 83 and is inserted into the fixing cavity 82 and abutted against the extrusion head 85 under the elastic action of the second compression spring 95, the first protection plate 10 and the second protection plate 11 are connected together at the moment, when the anti-theft door is unlocked at the same side, the supporting rod 86 is extruded by the pressing plate 87, the supporting rod 86 extrudes the limiting head 94, in the process, the extrusion head 85 continuously stretches the first compression spring 88, then slides the second protection plate 11 downwards, pulls the insertion plate 91 out of the inside of the clamping frame 81, exposes the keyhole of the door lock body 1, releases the pressing plate 87, the pressing head 85 is pulled back to the original position by the elastic force of the first compression spring 88, and then the first protection plate 10 is slid to the upper end of the door lock body 1, the key is inserted into the keyhole of the door lock body 1 to perform the unlocking action, the handle 4 is held, and is held on the anti-static sleeve 5 to avoid static electricity generated when the handle 4 is contacted with the hand of the user, then, the handle 4 is rotated clockwise, and in the process, the fixing rod 71, the first slider 72, the second threaded support rod 74 and the rotating rod 75 of the limiting mechanism 7 can pull one side of the handle 4, which is connected with the door lock main body 1, so that the looseness of the connection part of the handle 4 and the door lock main body 1 caused by the excessive pulling times of the handle 4 is avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The anti-theft door lock comprises a door lock main body (1) and is characterized in that first sliding grooves (2) are formed in two sides of the front side of the door lock main body (1), a second sliding groove (3) is formed in the middle of the front side of the door lock main body (1), the second sliding groove (3) is of an arc-shaped structure, a handle (4) is rotatably connected onto the door lock main body (1) at the circle center of the second sliding groove (3), third sliding grooves (14) are formed in the upper end and the lower end of the handle (4), the third sliding grooves (14) are communicated with the outer portion of one side, away from the door lock main body (1), of the handle (4), a second screw hole (13) is formed in the middle of one side, away from the door lock main body (1), an anti-static sleeve (5) is installed on the outer wall of the periphery of one side, away from the door lock main body (1), of the handle (4) runs through one side, close to the door lock, the internally mounted of mounting hole (6) has stop gear (7), the lower extreme difference sliding connection has first guard plate (10) and second guard plate (11) on the front of lock main part (1), the equal sliding connection in the inside of the first spout of homonymy (2) of second slider (12), fixed establishment (8) are all installed to the both sides of the positive lower extreme of first guard plate (10), grafting mechanism (9) are all installed to the both sides of the positive upper end of second guard plate (11), grafting mechanism (9) all with homonymy fixed establishment (8) phase-match.

2. A security door lock according to claim 1, wherein: prevent static cover (5) including fixed cover (51), fixed cover (51) cover is established on the peripheral outer wall of handle (4), equal fixedly connected with card strip (52) on the upper and lower end inner wall of fixed cover (51), the inside at homonymy third spout (14) of equal sliding connection of card strip (52), overlap on the peripheral outer wall of fixed cover (51) and establish and fixedly connected with rubber sleeve (53), one side middle part that lock main part (1) was kept away from in fixed cover (51) runs through and threaded connection has first screw thread branch (54), one end threaded connection that first screw thread branch (54) are close to lock main part (1) is in the inside of second screw (13), the one end fixedly connected with runner (55) of lock main part (1) are kept away from in first screw thread branch (54).

3. A security door lock according to claim 1, wherein: the limiting mechanism (7) comprises a fixing rod (71), the front face of the fixing rod (71) is inserted into the mounting hole (6), a first sliding block (72) is fixedly connected to the back face of the fixing rod (71), the first sliding block (72) is connected to the inside of the second sliding groove (3) in a sliding mode, a first screw hole (73) is formed in the front face of the fixing rod (71), a second threaded support rod (74) is connected to the inner thread of the first screw hole (73), the front face of the second threaded support rod (74) extends to the outer portion of the first screw hole (73), a rotating rod (75) is fixedly connected to the outer portion of the first screw hole (73), the diameter of the rotating rod (75) is larger than that of the fixing rod (71), and the rotating rod (75) is connected to the inside of the mounting hole (6.

4. A security door lock according to claim 3, wherein: the front surface of the rotating rod (75) is fixedly connected with a rotating plate (76), and the front surface of the rotating plate (76) is flush with the front surface of the handle (4).

5. A security door lock according to claim 1, wherein: the fixing mechanisms (8) respectively comprise clamping frames (81), the clamping frames (81) are respectively in a U-shaped structure and are respectively fixedly connected to the first protection plates (10), the front inside of the clamping frame (81) is provided with a fixed cavity (82), the back of the fixed cavity (82) is provided with a through groove (83) in a penetrating way, sliding plates (84) are connected inside the fixed cavities (82) in a sliding manner, extrusion heads (85) are fixedly connected on the back surfaces of the sliding plates (84), the middle part of the front surface of the sliding plate (84) is fixedly connected with a supporting rod (86), the circumferential outer wall of one end of the supporting rod (86) close to the sliding plate (84) is sleeved with a first compression spring (88), the back surfaces of the first compression springs (88) are fixedly connected with the front surface of the slide plate (84) on the same side, the front surfaces of the first compression springs (88) are fixedly connected to the inner wall of the front surface of the fixed cavity (82).

6. A security door lock according to claim 5, wherein: one end, far away from the sliding plate (84), of the supporting rod (86) penetrates through and is connected to the front side wall of the fixed cavity (82) in a sliding mode, and one end, far away from the sliding plate (84), of the supporting rod (86) is fixedly connected with a pressing plate (87).

7. A security door lock according to claim 1, wherein: grafting mechanism (9) all include picture peg (91), the equal fixed connection of picture peg (91) is on second guard plate (11), the upper end of picture peg (91) openly all sets up fluted (92), spacing groove (93) have all been seted up on the both sides inner wall of recess (92), the equal sliding connection in inside of recess (92) has spacing head (94), the equal sliding connection in both sides of spacing head (94) is in the inside of homonymy spacing groove (93), the equal fixedly connected with second compression spring (95) in the back of spacing head (94), the equal fixed connection in the back of second compression spring (95) is on the back inner wall of place recess (92).

8. A security door lock according to claim 1, wherein: the size of first guard plate (10) and second guard plate (11) is the same, the equal fixedly connected with second slider (12) in both sides lower extreme at first guard plate (10) back and second guard plate (11) back both sides upper end.