Elastic positioning concealed plug for door
By designing the door elastic positioning and obstructing the door, the coordination of the positioning pin and the fixed pin rod and the role of the elastic compression spring, the problem that existing locks cannot be locked due to debris blockage is solved, and the safety of the anti-theft door and the smoothness of the door are improved.
Patent Information
- Application Number
- CN202422249897.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-13
AI Technical Summary
Existing pin locks are easily blocked by dust and other debris during locking the door, resulting in reduced safety. The pin may fall under gravity, affecting the smooth opening and closing of the door.
An elastic positioning and obstruction plug for door is designed, including a hidden insert housing, a fixed latch rod and a positioning handle. Through the coordination of the positioning plug and the fixed latch rod, the positioning end is used to enter the positioning hole by using an elastic compression spring to lock the fixed latch rod to prevent it from being pushed or dropped at will.
It realizes safe locking of the security door, prevents the pin from falling, and improves the smoothness and safety of the door.
Smart Images
Figure CN223034742U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of locks, in particular to an elastic positioning concealed bolt for doors. Background Art
[0002] In anti-theft doors with two doors such as double-leaf doors and mother-and-son doors, locks with structures such as bolts are usually used to insert the bolts into the lock holes to fix one of the doors, so that the two doors can be better fixed to each other through the door lock. In the currently common bolt locks, the bolt needs to be pushed to unlock and completely pushed into the lock body before it can be locked by the locking structure to prevent the bolt from falling back into the lock hole or on the ground under its own gravity. Otherwise, it may cause scratches on the ground when opening and closing the door and affect the smoothness of the anti-theft door during the swinging process. In addition, when pushing the bolt into the lock hole for locking, the end of the bolt needs to enter the lock hole a certain distance before it can be locked by the locking structure. If the inside of the bottom of the lock hole is blocked by dust and other sundries, resulting in the bolt being unable to be pushed to the locked position for locking, at this time, the bolt can be randomly pushed and pulled to unlock, thus affecting the security of the anti-theft door equipped with the bolt lock. Content of the Utility Model
[0003] In view of the technical defects in the background art, the utility model provides an elastic positioning concealed bolt for doors, which solves the above technical problems and meets the actual requirements. The specific technical solutions are as follows:
[0004] An elastic positioning concealed bolt for doors includes a concealed bolt housing, a fixed bolt rod, and a positioning handle. The inside of the concealed bolt housing is hollow to form a bolt rod cavity. Both opposite ends of the concealed bolt housing are provided with bolt rod holes penetrating through to the bolt rod cavity. The fixed bolt rod is located in the bolt rod cavity, and its opposite ends respectively penetrate through the two bolt rod holes and extend outwards. The surface of the fixed bolt rod is penetrated with positioning bolt holes;
[0005] One side of the surface of the concealed bolt housing is provided with a positioning chute. A sliding through groove penetrating through to the bolt rod cavity is arranged in the positioning chute. A plurality of positioning holes are arranged on one side of the bolt rod cavity opposite to the sliding through groove. The positioning handle is located in the positioning chute and is provided with a positioning bolt that sequentially penetrates through the positioning chute, the positioning bolt hole, and then extends into the positioning hole. The end of the positioning bolt away from the positioning handle is provided with a positioning end with an outer diameter larger than that of the positioning bolt. A compression spring is sleeved on the surface of the positioning bolt, and both ends of the compression spring are respectively abutted against the positioning end and the fixed bolt rod.
[0006] As a further technical solution of the utility model, the plurality of positioning holes are linearly and evenly distributed along the extending direction of the fixed bolt rod.
[0007] As a further technical solution of the present utility model, at least two positioning pins are provided, the number and position of the positioning pin holes are matched with the positioning pins, and the distance between two adjacent positioning pins is the same as the distance between two adjacent positioning holes.
[0008] As a further technical solution of the present utility model, one end of the fixed pin rod is provided with a fixed end, and the outer diameter of the fixed end gradually decreases in a direction away from the center of the fixed pin rod.
[0009] As a further technical solution of the present utility model, the positioning handle is composed of a handle base and a handle pull ring. The handle base is fixedly connected to the positioning pin, and the handle pull ring is hinged to the handle base.
[0010] As a further technical solution of the present utility model, the extending directions of the positioning chute, the sliding through groove and the fixed pin rod are the same.
[0011] As a further technical solution of the present utility model, the edge of the concealed plug housing is provided with an outwardly extending mounting fixing plate, and a plurality of mounting holes are penetrated through the surface of the mounting fixing plate.
[0012] The beneficial effects of the present utility model are as follows:
[0013] By pushing and pulling the positioning handle of the present utility model, the positioning pin and the fixed pin rod move, so that the end of the fixed pin rod enters or leaves the keyhole, realizing the locking or unlocking of the anti-theft door. After the locking or unlocking operation of the anti-theft door is completed, the positioning pin makes the positioning end enter the positioning hole under the action of the compression spring, so that the fixed pin rod is in a locked state and cannot continue to move. The fixed pin rod cannot leave the keyhole by random pushing and pulling, improving the security of the anti-theft door. Moreover, the fixed pin rod will not fall into the keyhole or on the ground under its own gravity, improving the smoothness when opening the anti-theft door. Description of the Drawings
[0014] Figure 1 is a schematic structural diagram of an elastic positioning concealed plug for a door.
[0015] Figure 2 is an exploded schematic diagram of an elastic positioning concealed plug for a door.
[0016] Figure 3 is a cross-sectional view of an elastic positioning concealed plug for a door.
[0017] Figure 4 is a schematic structural diagram of an elastic positioning concealed plug for a door from another angle.
[0018] Wherein: the concealed insertion housing 1, the bolt rod cavity 11, the bolt rod hole 12, the positioning chute 13, the sliding through slot 14, the positioning hole 15, the mounting fixing plate 16, the mounting hole 17, the fixed bolt rod 2, the positioning bolt hole 21, the fixed end 22, the positioning handle 3, the handle base 31, the handle pull ring 32, the positioning bolt 4, the positioning end 41, the compression spring 5. Specific embodiments
[0019] The following combines the accompanying drawings and related embodiments to illustrate the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the present utility model relates to the relevant necessary components in the technical field, which should be regarded as the well-known technologies in the technical field and can be known and mastered by those skilled in the technical field.
[0020] As Figure 1 、 2 、3, and 4 show, an elastic positioning concealed insertion for a door includes a concealed insertion housing 1, a fixed bolt rod 2, and a positioning handle 3. The interior of the concealed insertion housing 1 is hollow to form a bolt rod cavity 11. Bolt rod holes 12 penetrating through to the bolt rod cavity 11 are provided at both opposite ends of the concealed insertion housing 1. The fixed bolt rod 2 is located in the bolt rod cavity 11 and its opposite ends respectively penetrate through the two bolt rod holes 12 and extend outwards. A positioning bolt hole 21 penetrates through the surface of the fixed bolt rod 2; a positioning chute 13 is provided on one side of the surface of the concealed insertion housing 1, and a sliding through slot 14 penetrating through to the bolt rod cavity 11 is provided in the positioning chute 13. A plurality of positioning holes 15 are provided on one side of the bolt rod cavity 11 opposite to the sliding through slot 14. The plurality of positioning holes 15 are linearly and evenly distributed along the extending direction of the fixed bolt rod 2. The positioning handle 3 is located in the positioning chute 13 and is provided with a positioning bolt 4 that sequentially penetrates through the positioning chute 13, the positioning bolt hole 21, and then extends into the positioning hole 15. A positioning end 41 with an outer diameter larger than that of the positioning bolt 4 is provided at one end of the positioning bolt 4 away from the positioning handle 3. A compression spring 5 is sleeved on the surface of the positioning bolt 4, and both ends of the compression spring are respectively abutted against the positioning end 41 and the fixed bolt rod 2.
[0021] The present utility model is mainly used as a lock in anti-theft doors with two doors such as double-leaf doors and mother-and-child doors. Specifically, it can be used as a concealed bolt structure inside the anti-theft door. After an installation groove is opened on the surface of the anti-theft door, the concealed insertion housing 1 is embedded into the installation groove and fixed to the anti-theft door. After the fixation, the side of the concealed insertion housing 1 provided with the positioning chute 13 is located on the surface of the anti-theft door. A gap allowing the fixed bolt rod 2 to move is provided between the fixed bolt rod 2 and the bolt rod hole 12. The anti-theft door is fixed by inserting the movable fixed bolt rod 2 into the lock hole on the ground. At the same time, since the positioning bolt 4 penetrates through the positioning bolt hole 21 on the surface of the fixed bolt rod 2, the positioning end 41 of the positioning bolt 4 can enter the positioning hole 15 under the elastic force of the compression spring 5, thereby locking the fixed bolt rod 2 so that it cannot move further, realizing the fixation of the anti-theft door and locking the fixed bolt rod 2 at the same time.
[0022] Working principle of the utility model: Pull the positioning pin 4 away from the positioning hole 15 by the positioning handle 3 and compress the compression spring 5. When the positioning end 41 of the positioning pin 4 leaves the positioning hole 15, the fixed pin rod 2 is in the unlocked state. Since the extending directions of the positioning chute 13, the sliding through groove 14 and the fixed pin rod 2 are the same, by pushing the positioning handle 3 to move along the positioning chute 13 and the positioning pin 4 moves synchronously along the sliding through groove 14, the fixed pin rod 2 moves along its own extending direction, so that the end of the fixed pin rod 2 enters or leaves the keyhole, realizing locking or unlocking of the anti-theft door. After the above operations are completed, remove the pulling force applied to the positioning handle 3. The compression spring 5 releases elastic force to push the positioning pin 4 to reset and the positioning end 41 re-enters the positioning hole 15, realizing locking of the fixed pin rod 2. When the anti-theft door is locked, the fixed pin rod 2 cannot leave the keyhole by random pushing or pulling, improving the security of the anti-theft door. When the anti-theft door is unlocked, the fixed pin rod 2 will not fall into the keyhole or on the ground under its own gravity, improving the smoothness when opening the door.
[0023] It should be noted that during the reset process of the positioning pin 4 under the elastic force of the compression spring 5, the positioning end 41 may abut against the inside of the pin rod cavity 11 and does not enter the positioning hole 15, making the fixed pin rod 2 still in a movable state. When the fixed pin rod 2 moves under its own gravity or external force, the positioning pin 4 will move synchronously until the positioning end 41 enters the nearest positioning hole 15, making the fixed pin rod 2 in the locked state, avoiding the fixed pin rod 2 leaving the keyhole by random pushing or pulling or falling into the keyhole or on the ground under its own gravity, improving the security of the anti-theft door and the smoothness when opening the door. Moreover, several positioning holes 15 are evenly distributed along a straight line. Each positioning hole 15 can cooperate with the positioning pin 4 to lock the fixed pin rod 2. The end of the fixed pin rod 2 does not need to completely enter the keyhole to be locked. The fixed pin rod 2 does not need to completely enter the anti-theft door to be locked. The locking position of the fixed pin rod 2 is more flexible, improving the convenience during the use of the utility model.
[0024] Furthermore, the length of the sliding through groove 14 is less than that of the positioning chute 14. The movement range of the positioning handle 3 is limited by the cooperation of the two opposite ends of the sliding through groove 14 and the positioning pin 4. When the positioning pin 4 moves to the two opposite ends along the sliding through groove 14, the positioning handle 3 and the inner walls at both ends of the positioning chute 13 will not abut against each other, avoiding pinching the hand between the positioning handle 3 and the inner wall at the end of the positioning chute 13 during the process of pulling the positioning handle 3, improving the security of the utility model.
[0025] In summary, in the present utility model, the positioning bolt 4 and the fixed bolt rod 2 are moved by pushing and pulling the positioning handle 3, so that the end of the fixed bolt rod 2 enters or leaves the keyhole, thereby locking or unlocking the anti-theft door. After the locking or unlocking operation of the anti-theft door is completed, under the action of the compression spring 5, the positioning end 41 of the positioning bolt 4 enters the positioning hole 15, so that the fixed bolt rod 2 is in a locked state and cannot move further. The fixed bolt rod 2 cannot leave the keyhole by random pushing and pulling, improving the security of the anti-theft door. Moreover, the fixed bolt rod 2 will not fall into the keyhole or on the ground under its own gravity, improving the smoothness when opening the anti-theft door.
[0026] As Figure 2 , 3 shown, as one of the preferred embodiments of the present utility model, at least two positioning bolts 4 are provided, the number and position of the positioning bolt holes 21 are matched with those of the positioning bolts 4, and the distance between two adjacent positioning bolts 4 is the same as the distance between two adjacent positioning holes 15; preferably two positioning bolts 4 are provided in the present utility model, and the distance between two adjacent positioning holes 15 is the same as the distance between the two positioning bolts 4. When the fixed bolt rod 2 is in the locked state, the positioning ends 41 of the two positioning bolts 4 are both located in the positioning holes 15, improving the stability and firmness of the fixed bolt rod 2 in this state. Moreover, after the present utility model is used for a long time, the positioning bolts 4 are prone to mechanical fatigue under the long-term external forces such as friction force and pushing and pulling force, and are likely to break and cannot work continuously. When one of the positioning bolts 4 breaks, the fixed bolt rod 2 can still be locked by the other positioning bolt 4, and the normal operation of the present utility model can still be ensured during the repair interval.
[0027] As Figure 2 , 3 shown, as one of the preferred embodiments of the present utility model, one end of the fixed bolt rod 2 is provided with a fixed end 22, and the outer diameter of the fixed end 22 gradually decreases in the direction away from the center of the fixed bolt rod 2; the fixed bolt rod 2 forms a frustum of a cone structure at the fixed end 22, so that the surface of the fixed end 22 forms an inclined surface, that is, the outer diameter of the fixed bolt rod 2 gradually decreases at the fixed end 22. When it is necessary to use the fixed bolt rod 2 to lock the anti-theft door, the fixed bolt rod 2 can more easily insert into the keyhole through the fixed end 22.
[0028] As Figure 2 , 3As shown in Figure 4, as one of the preferred embodiments of the utility model, the positioning handle 3 is composed of a handle base 31 and a handle pull ring 32. The handle base 31 is fixedly connected to the positioning latch 4, and the handle pull ring 32 is hinged to the handle base 31; the handle pull ring 32 is used to pull the handle base 31 to make the positioning latch 4 and the fixed latch rod 2 move synchronously, so as to lock and unlock the anti-theft door. The handle pull ring 32 is connected to the handle base 31 by a hinge. During the pulling of the positioning handle 3, the handle pull ring 32 can swing with the change of the force direction, so that it is easier to be pulled, and the handle pull ring 32 can swing into the positioning slide groove 13 without protruding outward, thereby improving the surface flatness of the utility model after being installed in the anti-theft door.
[0029] Furthermore, grooves or through holes matching the fingers can be provided on the surface of the handle pull ring 32, so that the user has a fulcrum when pulling the handle base 31 through the handle pull ring 32, thereby making the positioning handle 3 easier to pull, avoiding the fingers or nails being scratched due to the fingers and the handle pull ring 32 slipping during the pulling of the positioning handle 3, thereby improving the safety of the utility model.
[0030] like Figure 1 , 2 As shown in Figures 3 and 4, as one of the preferred embodiments of the utility model, an edge of the concealed plug shell 1 is provided with an outwardly extending mounting plate 16, and a plurality of mounting holes 17 are penetrated through the surface of the mounting plate 16; the mounting holes 17 are distributed at the four corners outside the edge of the concealed plug shell 1, and the mounting holes 17 and the mounting plate 16 are matched with tools such as fixing screws, so that the utility model can be installed and fixed in the anti-theft door, thereby improving the convenience and firmness of installation.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. An elastic positioning concealed latch for a door, comprising a concealed latch housing (1), a fixed latch rod (2), and a positioning handle (3), characterized in that: The interior of the concealed plug housing (1) is hollow to form a latch rod cavity (11), and opposite ends of the concealed plug housing (1) are provided with latch rod holes (12) penetrating the latch rod cavity (11), the fixed latch rod (2) is located in the latch rod cavity (11), and opposite ends thereof respectively penetrate the two latch rod holes (12) to extend outwards, and a positioning latch hole (21) is penetrated on the surface of the fixed latch rod (2); A positioning groove (13) is provided on one side of the surface of the concealed plug housing (1), and a sliding groove (14) is provided in the positioning groove (13) and penetrates into the latch rod cavity (11). A plurality of positioning holes (15) are provided in the latch rod cavity (11) on a side opposite to the sliding groove (14). The positioning handle (3) is located in the positioning groove (13) and is provided with a positioning pin (4) which penetrates through the positioning groove (13) and the positioning pin hole (21) in sequence and then extends into the positioning hole (15). The positioning pin (4) is provided with a positioning end (41) having an outer diameter greater than that of the positioning pin (4) at one end away from the positioning handle (3). A compression spring (5) is sleeved on the surface of the positioning pin (4), and the two ends of the compression spring are respectively in contact with the positioning end (41) and the fixed latch rod (2).
2. The elastic positioning concealed insert for door according to claim 1, characterized in that: The plurality of positioning holes (15) are evenly distributed in a straight line along the extension direction of the fixed latch rod (2).
3. The elastic positioning concealed insert for door according to claim 1, characterized in that: At least two positioning pins (4) are provided, the number and positions of the positioning pin holes (21) match those of the positioning pins (4), and the distance between two adjacent positioning pins (4) is the same as the distance between two adjacent positioning holes (15).
4. The elastic positioning concealed insert for door according to claim 1, characterized in that: A fixed end (22) is provided at one end of the fixed latch rod (2), and the outer diameter of the fixed end (22) gradually decreases in a direction away from the center of the fixed latch rod (2).
5. The elastic positioning concealed insert for door according to claim 1, characterized in that: The positioning handle (3) is composed of a handle base (31) and a handle pull ring (32); the handle base (31) is fixedly connected to the positioning pin (4); and the handle pull ring (32) is hinged to the handle base (31).
6. The elastic positioning concealed insert for door according to claim 1, characterized in that: The positioning sliding groove (13), the sliding through groove (14) and the fixed latch rod (2) all extend in the same direction.
7. The elastic positioning concealed insert for door according to claim 1, characterized in that: An outwardly extending mounting plate (16) is provided at the edge of the concealed plug housing (1), and a plurality of mounting holes (17) are penetrated through the surface of the mounting plate (16).