Fireproof and prying-resistant metal protection component for lock body

Abstract

The utility model relates to the technical field of lock body protection, and discloses a lock body fireproof and prying-resistant metal protection component which comprises a door body, a lock body is arranged in the door body, and a protection mechanism is arranged in the door body. The protection mechanism comprises a protection shell, the lock body is located in the protection shell, the protection shell is clamped into the door body, four supporting columns are fixedly connected to the inner wall of the protection shell, the side faces, close to each other, of the two supporting columns make contact with the upper surface and the bottom face of the lock body correspondingly, and two rotating rods are rotationally connected into the protection shell. And two threaded grooves are formed in the outer surface of each rotating rod. According to the fireproof and prying-resistant metal protection component for the lock body, after an outer-layer iron sheet of an anti-theft door is damaged, the protection shell can provide secondary protection for the lock body, so that the lock body is not prone to being directly pried and damaged, and the effects that the lock body is matched with a protection mechanism, the fireproof and anti-theft effect is effectively improved, and the overall use safety of the lock body is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lock body protection, in particular to a fireproof and pry-proof metal protection component for a lock body. Background Art

[0002] The lock body is one of the components of the lock. There are many kinds of lock bodies, the common ones are one-way lock bodies, three-way lock bodies, four-way lock bodies, etc. The lock body is generally used on anti-theft doors and is responsible for the basic anti-theft work of the anti-theft doors. The lock core controls the operation of the lock body. The lock body is responsible for opening and locking doors and windows, and plays an important role in anti-theft. When installing the lock body, it is usually directly inserted into the reserved slot of the anti-theft door, and then the door handle is installed and the lock body is fixed through bolts and other structures to complete the installation of the lock body.

[0003] The utility model with the existing authorization announcement number CN217205893U discloses a lock body, including a lock shell, a lock cylinder dial wheel, an unlocking member, a transmission member and a main lock tongue assembly, wherein the lock cylinder dial wheel is rotatably arranged on the lock shell; the unlocking member is rotatably arranged on the lock shell, and the unlocking member is arranged on the rotation path of the lock cylinder dial wheel; the transmission member is rotatably arranged on the lock shell.

[0004] The above technical scheme is adopted to improve the efficiency of the lock cylinder dial wheel in driving the transmission part to rotate, and reduce the rotation angle required for the lock cylinder dial wheel to drive the main lock tongue assembly to retract relative to the lock shell, so as to realize small-angle unlocking of the lock body and avoid the phenomenon that the lock cannot be unlocked by rotating the lock cylinder dial wheel. However, with the above technical scheme, the lock body is directly stuck in the anti-theft door when in use, and the fire-proof, pry-proof and supporting effects of the lock body itself are poor. After the outer iron sheet of the anti-theft door is damaged, the lock body can be directly damaged and pried open, thereby affecting the safety of the lock body. At the same time, when the handle is installed, the outer iron sheet of the anti-theft door will sink inward as the screws are tightened, affecting the overall appearance of the lock body when in use.

[0005] Therefore, those skilled in the art provide a fireproof and pry-proof metal protection component for a lock body to solve the problems raised in the above background technology. Utility Model Content

[0006] The utility model aims to provide a fireproof and pry-proof metal protection component for a lock body, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A fireproof and pry-proof metal protection component for a lock body, comprising a door body, a lock body is arranged inside the door body, and a protection mechanism is arranged inside the door body;

[0009] The protection mechanism includes a protection shell, the lock body is located inside the protection shell, the protection shell is clamped inside the door body, the inner wall of the protection shell is fixedly connected with four support columns, and the side surfaces of the two groups of support columns close to each other are respectively in contact with the upper surface and the bottom surface of the lock body, the interior of the protection shell is rotatably connected with two rotating rods, the outer surface of each rotating rod is provided with two thread grooves, the thread directions of each group of thread grooves are opposite, each rotating rod is threadedly connected to two moving seats through the thread grooves, and the interior of each moving seat is movably hinged with two guide rods, and each group of guide rods is movably hinged with a pushing column at one end away from the moving seat, and each pushing column is slidably connected to the interior of the protective shell, and each pushing column is fixedly connected with a conical groove plate at one end away from the rotating rod, and each conical groove plate is clamped inside the protective shell.

[0010] As a further solution of the utility model: the upper surface and the bottom surface of the protective shell are fixedly connected to two positioning strips, and each of the positioning strips is clamped inside the door body.

[0011] As a further solution of the utility model: the upper surface and the bottom surface of the lock body are fixedly connected with a mounting plate, the interior of each mounting plate is threaded with a screw, the right end of each screw passes through the mounting plate and extends to the interior of the protective shell, and each screw is threadedly connected to the protective shell.

[0012] As a further solution of the utility model: four clamping grooves are provided on the front and back of the lock body, and eight clamping strips are fixedly connected to the inner side wall of the protective shell, and each of the clamping strips is clamped in the inside of the clamping groove.

[0013] As a further solution of the utility model: two auxiliary through grooves are provided on the front and back of the protective shell, and handle grooves are provided on the front and back of the door body.

[0014] As a further solution of the utility model: the left end of each rotating rod is fixedly connected with a rotating block, and the left side surface of each rotating block is provided with a rotating groove.

[0015] As a further solution of the utility model: the right end of each rotating rod is fixedly connected to a limiting ring, and each limiting ring is rotatably connected to the inside of the protective shell.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can fix the position of the lock body in the door body by arranging a protective shell, reduce the influence of high temperature of fire on the lock body, and at the same time, the protective shell cooperates with the support column to fill the gap between the lock body and the outer iron sheet of the anti-theft door, so that when the handle is installed, the outer iron sheet of the anti-theft door will not be sunken inwards due to the tightening of the screws, affecting the overall appearance of the lock body when in use; and when the outer iron sheet of the anti-theft door is damaged, the protective shell can provide secondary protection for the lock body, so that the lock body is not easily directly pried open and damaged, so that the lock body cooperates with the protective mechanism to effectively increase its fire prevention and theft prevention effect, and improve The role of the overall safety of the lock body is that through the rotating connection between the rotating rod and the protective shell, and the threaded grooves in opposite directions on the rotating rod, turning the rotating rod can drive the two moving seats closer to each other, and then cooperating with the guide rod to push the pushing columns slidably connected inside the protective shell away from each other, forcing the conical groove plate to separate from the protective shell and contact with the inner wall of the iron sheet of the anti-theft door. At this time, the friction between the conical groove plate and the anti-theft door can be used to increase the firmness of the protective shell installed inside the anti-theft door, so that the protective shell can better protect the lock body, thereby achieving the effect of further increasing the anti-pry performance of the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a fireproof and pry-proof metal protection component of a lock body;

[0019] Figure 2 A schematic diagram of the structure of a protective shell in a fireproof and pry-proof metal protective component of a lock body;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of a lock body in a fireproof and pry-proof metal protection component of the lock body;

[0021] Figure 4 It is a schematic diagram of a three-dimensional structure of a protective shell in a fireproof and pry-proof metal protective component of a lock body;

[0022] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a rotating rod in a fireproof and pry-proof metal protective component of a lock body.

[0023] In the figure: 1. door body; 2. lock body; 3. protection mechanism; 301. protection shell; 302. support column; 303. rotating rod; 304. threaded groove; 305. moving seat; 306. guide rod; 307. push column; 308. tapered groove plate; 4. positioning strip; 5. mounting plate; 6. screw; 7. snap-in groove; 8. snap-in strip; 9. auxiliary through groove; 10. handle groove; 11. rotating block; 12. rotating groove; 13. limit ring. DETAILED DESCRIPTION

[0024] See also Figure 1-5A fireproof and pry-proof metal protection component for a lock body includes a door body 1, a lock body 2 is arranged inside the door body 1, a protection mechanism 3 is arranged inside the door body 1, the protection mechanism 3 includes a protection shell 301, the lock body 2 is located inside the protection shell 301, the upper surface and the bottom surface of the protection shell 301 are fixedly connected with two positioning strips 4, each positioning strip 4 is clamped inside the door body 1, the positioning strip 4 can assist the protection shell 301 to be clamped inside the door body 1, and increase the accuracy of the protection shell 301 during installation.

[0025] The protective shell 301 is clamped in the interior of the door body 1, and four support columns 302 are fixedly connected to the inner wall of the protective shell 301. The side surfaces of the two groups of support columns 302 that are close to each other are respectively in contact with the upper surface and the bottom surface of the lock body 2. The upper surface and the bottom surface of the lock body 2 are fixedly connected with mounting plates 5, and the interior of each mounting plate 5 is threadedly connected with screws 6. The right end of each screw 6 passes through the mounting plate 5 and extends to the interior of the protective shell 301. Each screw 6 is threadedly connected to the protective shell 301. The mounting plate 5 cooperates with the screws 6 to fix the lock body 2 on the protective shell 301, thereby increasing the connection tightness between the lock body 2 and the protective shell 301.

[0026] The protective shell 301 is internally rotatably connected to two rotating rods 303, and the outer surface of each rotating rod 303 is provided with two threaded grooves 304, and the thread directions of each group of threaded grooves 304 are opposite. The front and back sides of the lock body 2 are provided with four snap-in grooves 7, and the inner side wall of the protective shell 301 is fixedly connected to eight snap-in strips 8, and each snap-in strip 8 is snap-into the inside of the snap-in groove 7. The snap-in strips 8 cooperate with the snap-in grooves 7 to snap the position of the lock body 2 inside the protective shell 301, so that the connection between the lock body 2 and the protective shell 301 is tighter and more reliable.

[0027] Each rotating rod 303 is threadedly connected to two movable seats 305 through a threaded groove 304, and each movable seat 305 has two guide rods 306 movably hinged inside. Two auxiliary through grooves 9 are provided on the front and back of the protective shell 301, and handle grooves 10 are provided on the front and back of the door body 1. The auxiliary through grooves 9 can allow the protective shell 301 to reserve the socket required for installing the handle to ensure that the lock body 2 can be used normally, and the handle grooves 10 can reserve a handle socket on the door body 1.

[0028] The end of each guide rod 306 away from the movable seat 305 is movably hinged with a push column 307, and each push column 307 is slidably connected to the inside of the protective shell 301. The left end of each rotating rod 303 is fixedly connected to a rotating block 11, and a rotating groove 12 is provided on the left side of each rotating block 11. The rotating block 11 cooperates with the rotating groove 12 to facilitate the user to twist the rotating rod 303 with a wrench, thereby increasing the convenience of rotating the rotating rod 303.

[0029] The end of each push column 307 away from the rotating rod 303 is fixedly connected to a conical groove plate 308, and each conical groove plate 308 is clamped in the inside of the protective shell 301. The right end of each rotating rod 303 is fixedly connected to a limiting ring 13, and each limiting ring 13 is rotatably connected to the inside of the protective shell 301. The limiting ring 13 rotates inside the protective shell 301, which can limit the position of the rotating rod 303 inside the protective shell 301 without affecting the smooth rotation of the rotating rod 303, thereby preventing the rotating rod 303 from loosening from the protective shell 301.

[0030] The working principle of the utility model is: when in use, firstly, the protective shell 301 is clamped into the door body 1 through the positioning strip 4, and then the lock body 2 is fixed inside the protective shell 301 by using the mounting plate 5 in cooperation with the screws 6, and the clamping strips 8 and the clamping grooves 7. At this time, the position of the lock body 2 in the door body 1 can be fixed by the protective shell 301, reducing the impact of the high temperature of the fire on the lock body 2. At the same time, the protective shell 301 cooperates with the support column 302 to fill the gap between the lock body 2 and the outer iron sheet of the anti-theft door, and then when the handle is installed, the outer iron sheet of the anti-theft door will not be sunken inwards due to the tightening of the bolts, affecting the overall aesthetics of the lock body when in use. Moreover, when the outer iron sheet of the anti-theft door is damaged, the protective shell 301 can provide secondary protection for the lock body 2, so that the lock body 2 is not easily directly pried open and damaged, allowing the lock body to cooperate with the protective mechanism The fireproof and anti-theft effects of the lock body are effectively increased when the lock body is used, thereby greatly improving the overall safety of the lock body. In addition, through the rotational connection relationship between the rotating rod 303 and the protective shell 301, and the threaded grooves 304 on the rotating rod 303 in opposite directions, the rotating block 11 cooperates with the rotating groove 12 to twist the rotating rod 303 to drive the two moving seats 305 to approach each other, and then cooperate with the guide rod 306 to push the pushing column 307 slidably connected inside the protective shell 301 away from each other, forcing the cone groove plate 308 to separate from the protective shell 301 and contact the inner wall of the iron sheet of the anti-theft door. At this time, the friction between the cone groove plate 308 and the anti-theft door can increase the firmness of the protective shell 301 installed inside the anti-theft door, so that the protective shell 301 can better protect the lock body 2, thereby further improving the anti-pry performance of the lock body.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fireproof and pry-proof metal protection component for a lock body, comprising a door body (1), characterized in that: A lock body (2) is arranged inside the door body (1), and a protection mechanism (3) is arranged inside the door body (1); The protection mechanism (3) comprises a protection shell (301), the lock body (2) is located inside the protection shell (301), the protection shell (301) is clamped inside the door body (1), the inner wall of the protection shell (301) is fixedly connected with four support columns (302), the side surfaces of two groups of support columns (302) close to each other are respectively in contact with the upper surface and the bottom surface of the lock body (2), the interior of the protection shell (301) is rotatably connected with two rotating rods (303), the outer surface of each rotating rod (303) is provided with two thread grooves (304), and the thread direction of each group of the thread grooves (304) is On the contrary, each of the rotating rods (303) is threadedly connected to two moving seats (305) through a threaded groove (304), and each of the moving seats (305) is movably hinged with two guide rods (306) inside, and each group of guide rods (306) is movably hinged with a push column (307) at one end away from the moving seat (305), and each of the push columns (307) is slidably connected to the inside of the protective shell (301), and each of the push columns (307) is fixedly connected to a conical groove plate (308) at one end away from the rotating rod (303), and each of the conical groove plates (308) is clamped in the inside of the protective shell (301).

2. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The upper surface and the bottom surface of the protective shell (301) are fixedly connected to two positioning strips (4), and each positioning strip (4) is clamped inside the door body (1).

3. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The upper surface and the bottom surface of the lock body (2) are fixedly connected to a mounting plate (5), and each mounting plate (5) is threadedly connected to a screw (6) inside, and the right end of each screw (6) passes through the mounting plate (5) and extends to the inside of the protective shell (301), and each screw (6) is threadedly connected to the protective shell (301).

4. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The front and back sides of the lock body (2) are each provided with four snap-in grooves (7), and the inner side wall of the protective shell (301) is fixedly connected with eight snap-in strips (8), and each of the snap-in strips (8) is snap-into the inside of the snap-in groove (7).

5. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The front and back sides of the protective shell (301) are each provided with two auxiliary through slots (9), and the front and back sides of the door body (1) are each provided with a handle slot (10).

6. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The left end of each rotating rod (303) is fixedly connected to a rotating block (11), and the left side surface of each rotating block (11) is provided with a rotating groove (12).

7. The fireproof and pry-proof metal protection component for a lock body according to claim 1, characterized in that: The right end of each rotating rod (303) is fixedly connected to a limiting ring (13), and each limiting ring (13) is rotatably connected to the inside of the protective shell (301).

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