Novel bolt box

By designing a raised bending scratch plate on the panel of the latch box, the problem that the existing latch box needs to open slots on the door frame is solved, achieving the effect of simplifying installation and protecting the door frame.

CN223018370UActive Publication Date: 2025-06-24YONGKANG JUBALONG LOCK CO LTD
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Patent Information

Application Number
CN202421655870.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-06-24
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The scratch-proof design of the existing latch box requires reopening of slots on the door frame, which increases installation complexity and risk of damage and can easily affect the flatness of the door frame.

Method used

A new type of latch box is designed, with a bent anti-scratch plate on its panel. When the door lock tongue comes into contact with the scratch plate, the anti-scratch plate will move to the connecting groove to prevent the lock tongue from directly contacting the door frame and protecting the door frame from damage.

Benefits of technology

It realizes that the scratch plate is installed without reopening the slot on the door frame, which simplifies the installation process, avoids damage to the door frame, and ensures smooth and closes the door.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223018370U_ABST
    Figure CN223018370U_ABST
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Abstract

The utility model belongs to the technical field of locks, and particularly relates to a novel bolt box which comprises a box body embedded with a door frame and a panel covered on the box body, a connecting groove matched with a lock tongue of a door lock is arranged on the panel, a protruding portion is arranged on one side of the panel in an upward protruding mode, an anti-scraping plate for protecting the door frame is arranged on one side of the protruding portion outwards, and the anti-scraping plate is arranged on the other side of the panel. The anti-scraping plate is arranged in a bent mode, when the door frame is closed by the door body, the door lock bolt makes contact with the anti-scraping plate and moves into the connecting groove, and the bolt box with the anti-scraping plate is simple in structure, does not need to be provided with a groove in the door frame again, and is convenient for an operator to install.
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Description

Technical Field

[0001] The utility model belongs to the technical field of locks, and particularly relates to a new type of bolt box. Background Art

[0002] The bolt box is a device that cooperates with the lock tongue of the door lock. Usually, an installation groove is opened on the side of the door or the door frame, and the bolt box is installed in the installation groove. When the door is closed, the lock tongue on the door lock will contact the bolt box and be locked inward by the spring at one end of the lock tongue, so that it can be inserted into the bolt box. At present, the lock tongue repeatedly contacts and abuts against the door frame when closing the door, which is easy to damage the door frame. In order to prevent the door frame from being damaged, a scraping prevention plate is provided on the adjusting box. When the door is closed, the lock tongue will pass through the scraping prevention plate and move into the bolt box. However, the current design of the scraping prevention plate is usually to directly extend to one side on the panel, or a groove for accommodating the scraping prevention plate needs to be newly opened on the door frame. However, this method requires additional processes and users need to find someone to accurately open the groove again. Therefore, there is a need for a bolt box with a scraping prevention plate that does not require a new groove to be opened on the door frame and is convenient for operators to install. Summary of the Invention

[0003] The purpose of the utility model is to provide a bolt box with a scraping prevention plate that has a simple structure, does not require a new groove to be opened on the door frame, and is convenient for operators to install.

[0004] The purpose of the utility model is realized as follows:

[0005] A new type of bolt box includes a box body embedded in the door frame and a panel covering the box body. A connection groove for cooperating with the lock tongue of the door lock is provided on the panel. A convex portion protrudes upward on one side of the panel, and a scraping prevention plate for protecting the door frame is provided outward on one side of the convex portion. The scraping prevention plate is bent. When the door body closes the door frame, the lock tongue of the door lock contacts the scraping prevention plate and moves into the connection groove.

[0006] Further, the scraping prevention plate includes a guiding portion and an abutting portion, the guiding portion and the abutting portion are perpendicular to each other, and an arc portion is further provided between the guiding portion and the abutting portion.

[0007] Further, an adjusting box is movably arranged in the connection groove. The adjusting box includes a mounting seat and a sliding plate arranged on the mounting seat. A connecting plate for abutting against the inner wall of the box body is provided on the sliding plate. An insertion portion is provided on the connecting plate. A slot for the insertion portion to pass through is opened on the box body. When the sliding plate moves relative to the mounting seat, the insertion portion moves in the slot.

[0008] Further, a rolling seat is opened on the connecting plate, a connecting shaft is provided on the rolling seat, a roller for abutting against the lock tongue is provided on the connecting shaft, and the roller is rotatably arranged on the rolling seat through the connecting shaft.

[0009] Furthermore, an eccentric adjusting piece is provided on the sliding plate, and the eccentric adjusting piece is rotatably connected to the sliding plate. The eccentric adjusting piece includes a connecting part and a spiral part adapted to a screw tool, the connecting part is convexly provided on the upper surface of the sliding plate, and the spiral part is provided on the lower surface of the sliding plate.

[0010] Furthermore, the sliding plate is also provided with a guide plate, the sliding plate is provided with a guide hole, the guide plate is provided with a waist-shaped hole, a guide rod is provided in the guide hole, and the connecting part is provided in the waist-shaped hole.

[0011] Furthermore, the mounting seat is provided with bosses, the number of which is 3, and track grooves are formed between adjacent bosses. The driving connection part can drive the spiral part to rotate on the track groove.

[0012] Furthermore, a guide surface is provided on the boss.

[0013] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0014] The utility model discloses a novel latch box, comprising a box body embedded with a door frame and a panel covering the box body, the panel is provided with a connecting groove matched with a door lock tongue, an adjusting box is movably arranged in the connecting groove, a protrusion is upwardly protruded on one side of the panel, a scratch plate for protecting the door frame is outwardly provided on one side of the protrusion, the scratch plate is bent, when the door body closes the door frame, the door lock tongue contacts the scratch plate and moves into the connecting groove, the current design of the scratch plate is usually to extend directly to one side on the panel, or to need to open a groove for accommodating the scratch plate on the door frame, otherwise there will be a protruding area on the side of the door frame, which particularly affects the closing of the door, the utility model designs a protrusion on the panel, when the latch box is installed on one side of the door frame, the panel is parallel to the plane of the door frame, and the lower surface of the scratch plate can be normally close to the door frame, such as Figure 10 As shown, there will not be the problem that the anti-scratch plate is close to the door frame while there is a gap between the latch box and the installation groove, and people do not need to find a master to measure the size again to re-open the groove corresponding to the anti-scratch plate, and the possibility of accidentally damaging other places or the door frame when opening the groove is avoided. The manufacturing process is simple, which is convenient for manufacturers to manufacture and users to decorate. Users can close the door normally. An anti-scratch plate is set outward on one side of the raised part to better protect the door. When the door is closed, the lock tongue will not contact the door frame first but contact the anti-scratch plate first, thereby avoiding damage to the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the utility model.

[0016] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0017] Figure 3 This is a side view of the present utility model.

[0018] Figure 4 This is a separation view of the present utility model.

[0019] Figure 5 This is a three-dimensional view of the panel of the present utility model.

[0020] Figure 6 This is an exploded view of the adjustment box of the present utility model.

[0021] Figure 7 This is a three-dimensional view of the sliding plate of the present utility model.

[0022] Figure 8 This is a three-dimensional view of the mounting seat of the present utility model.

[0023] Figure 9 This is a three-dimensional view of the eccentric adjustment member of the present utility model.

[0024] Figure 10 This is a schematic diagram of the present utility model installed on the door frame.

[0025] The meanings represented by the reference numerals in the figure:

[0026] 1 - box body; 2 - panel; 3 - connection groove; 4 - adjustment box; 5 - convex portion; 6 - anti-scraping plate; 7 - guiding portion; 8 - abutting portion; 9 - arc portion; 10 - mounting seat; 11 - sliding plate; 12 - connecting plate; 13 - inserting portion; 14 - slot; 15 - rolling seat; 16 - connecting shaft; 17 - roller; 18 - eccentric adjustment member; 19 - connecting portion; 20 - spiral portion; 21 - guiding plate; 22 - guiding hole; 23 - kidney-shaped hole; 24 - guiding rod; 25 - boss; 26 - track groove; 27 - guiding surface. Specific embodiments

[0027] The present utility model will be further described below in conjunction with specific embodiments:

[0028] A new type of bolt box includes a box body 1 embedded in the door frame and a panel 2 covering the box body 1. A connection groove 3 for cooperating with the door lock tongue is provided on the panel 2. A convex portion 5 protrudes upward on one side of the panel 2, and an anti-scraping plate 6 for protecting the door frame is provided outward on one side of the convex portion 5. The anti-scraping plate 6 is bent. When the door body closes the door frame, the door lock tongue contacts the anti-scraping plate 6 and moves into the connection groove 3.

[0029] The utility model relates to a novel bolt box, which comprises a box body 1 embedded with a door frame and a panel 2 covering the box body 1. A connection groove 3 for cooperating with a door lock tongue is arranged on the panel 2. A convex part 5 protrudes upward on one side of the panel 2, and a scraping prevention plate 6 for protecting the door frame is arranged outward on one side of the convex part 5. The scraping prevention plate 6 is bent. When the door body closes the door frame, the door lock tongue contacts the scraping prevention plate 6 and moves into the connection groove 3. Currently, the design of the scraping prevention plate 6 is usually to directly extend to one side on the panel 2, or a groove for accommodating the scraping prevention plate 6 needs to be newly opened on the door frame. Otherwise, there will be a protruding part on the side of the door frame, which particularly affects closing the door. In the utility model, the convex part 5 is designed to protrude on the panel 2. When the bolt box is installed on one side of the door frame, the panel 2 is parallel to the plane of the door frame, and the lower surface of the scraping prevention plate 6 can normally fit tightly against the door frame, as Figure 10 shown. There will be no problem that the scraping prevention plate 6 fits tightly against the door frame while there is still a gap between the bolt box and the installation groove. Moreover, it is not necessary for people to find a master to measure the dimensions again and newly open a groove corresponding to the scraping prevention plate 6. It also avoids the possibility of accidentally damaging other places or the door frame during slotting. The manufacturing process is simple, which is convenient for the manufacturer to manufacture and the user to decorate. The user can normally close the door. The scraping prevention plate 6 is arranged outward on one side of the convex part 5, which can better protect the door frame. When the door is closed, the lock tongue will first contact the scraping prevention plate 6 instead of the door frame, avoiding damage to the door frame.

[0030] Preferably, the scraping prevention plate 6 comprises a guiding part 7 and an abutting part 8. The guiding part 7 and the abutting part 8 are relatively perpendicular, and an arc part 9 is also arranged between the guiding part 7 and the abutting part 8. In the utility model, the scraping prevention plate 6 is arranged to be bent, so that the scraping prevention effect is better and the door frame is better protected. At present, some scraping prevention plates 6 on the market are arranged on the adjusting box 4, resulting in that they cannot be designed to be bent. After the user operates the adjusting box 4 and the scraping prevention plate 6 moves accordingly, a part of the door frame position will be exposed, and the lock tongue will still touch the door frame when closing the door, which will cause that it cannot be installed closely against the door frame during installation without the need to expose an extra part. In the utility model, the scraping prevention plate 6 is arranged on the convex part 5, so that it can be installed closely against the door frame during installation, and when the adjusting box 4 is driven to move outward, it will not affect the use.

[0031] Preferably, an adjusting box 4 is movably arranged in the connection groove 3. The adjusting box 4 comprises a mounting seat 10 and a sliding plate 11 arranged on the mounting seat 10. A connecting plate 12 for abutting against the inner wall of the box body 1 is arranged on the sliding plate 11. An inserting part 13 is arranged on the connecting plate 12. A slot 14 for the inserting part 13 to pass through is opened on the box body 1. When the sliding plate 11 moves relative to the mounting seat 10, the inserting part 13 moves in the slot 14, facilitating the movement of the adjusting box 4.

[0032] Preferably, a rolling seat 15 is provided on the connecting plate 12. A connecting shaft 16 is provided on the rolling seat 15. A roller 17 for abutting against the lock tongue is provided on the connecting shaft 16. The roller 17 is rotatably arranged on the rolling seat 15 through the connecting shaft 16. The arrangement of the roller 17 is beneficial to reducing the friction between the lock tongue and the plug box during use and is beneficial to the rapid expansion and contraction of the lock tongue.

[0033] Preferably, an eccentric adjusting member 18 is provided on the sliding plate 11. The eccentric adjusting member 18 is rotatably connected to the sliding plate 11. The eccentric adjusting member 18 includes a connecting portion 19 adapted to a screw tool and a spiral portion 20. The connecting portion 19 protrudes from the upper surface of the sliding plate 11, and the spiral portion 20 is provided on the lower surface of the sliding plate 11.

[0034] Preferably, a guide plate 21 is further provided on the sliding plate 11. A guide hole 22 is provided on the sliding plate 11. A waist-shaped hole 23 is provided on the guide plate 21. A guide rod 24 is provided in the guide hole 22. The connecting portion 19 is arranged in the waist-shaped hole 23 to play a guiding role.

[0035] Preferably, a boss 25 is provided on the mounting seat 10. The number of bosses 25 is 3. An orbital groove 26 is formed between adjacent bosses 25. Driving the connecting portion 19 can drive the spiral portion 20 to rotate on the orbital groove 26, which is convenient for the user to use and adjust, facilitates the user to finely adjust the connecting plate 12, is beneficial to the tight connection between the lock tongue and the adjusting box 4, and the user can control the sliding of the sliding plate 11 by rotating the connecting portion 19, which is convenient for the user to adjust and control.

[0036] Preferably, a guide surface 27 is further provided on the boss 25 to make the rotation of the spiral portion 20 smoother.

[0037] The above embodiments are only the preferred embodiments of the present invention and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A novel latch box, comprising a box body (1) embedded in a door frame and a panel (2) covering the box body (1), characterized in that: The panel (2) is provided with a connecting groove (3) that cooperates with the door lock tongue. A protrusion (5) is protruding upward on one side of the panel (2). A scratch plate (6) for protecting the door frame is provided outward on one side of the protrusion (5). The scratch plate (6) is bent. When the door body closes the door frame, the door lock tongue contacts the scratch plate (6) and moves into the connecting groove (3).

2. A novel latch box according to claim 1, characterized in that: The anti-scratch plate (6) comprises a guide portion (7) and an abutment portion (8); the guide portion (7) and the abutment portion (8) are relatively perpendicular to each other, and an arc portion (9) is further provided between the guide portion (7) and the abutment portion (8).

3. A novel latch box according to claim 1 or 2, characterized in that: An adjusting box (4) is movably arranged in the connecting groove (3), and the adjusting box (4) comprises a mounting seat (10) and a sliding plate (11) arranged on the mounting seat (10); a connecting plate (12) abutting against the inner wall of the box body (1) is arranged on the sliding plate (11); an inserting portion (13) is arranged on the connecting plate (12); a slot (14) for the inserting portion (13) to pass through is opened on the box body (1); when the sliding plate (11) moves relative to the mounting seat (10), the inserting portion (13) moves in the slot (14).

4. A novel latch box according to claim 3, characterized in that: The connecting plate (12) is provided with a rolling seat (15), the rolling seat (15) is provided with a connecting shaft (16), the connecting shaft (16) is provided with a roller (17) for abutting against the locking tongue, and the roller (17) is rotatably arranged on the rolling seat (15) through the connecting shaft (16).

5. A novel latch box according to claim 3, characterized in that: The sliding plate (11) is provided with an eccentric adjusting member (18), the eccentric adjusting member (18) being rotatably connected to the sliding plate (11), the eccentric adjusting member (18) comprising a connecting portion (19) and a spiral portion (20) adapted to a screw tool, the connecting portion (19) being protrudingly arranged on the upper surface of the sliding plate (11), and the spiral portion (20) being arranged on the lower surface of the sliding plate (11).

6. A novel latch box according to claim 5, characterized in that: The sliding plate (11) is also provided with a guide plate (21), the sliding plate (11) is provided with a guide hole (22), the guide plate (21) is provided with a waist-shaped hole (23), a guide rod (24) is provided in the guide hole (22), and the connecting portion (19) is arranged in the waist-shaped hole (23).

7. A novel latch box according to claim 5, characterized in that: The mounting seat (10) is provided with bosses (25), the number of bosses (25) being three, and track grooves (26) being formed between adjacent bosses (25). The driving connection part (19) can drive the spiral part (20) to rotate on the track groove (26).

8. A novel latch box according to claim 7, characterized in that: The boss (25) is also provided with a guide surface (27).