Dead lock additional lock

Abstract

The utility model discloses an additional lock of a dull lock, which comprises a bottom plate in an annular shape, and anti-skidding lines are arranged on the surface of the bottom plate; the groove is formed in the surface of the bottom plate, and the shape of the groove is annular; the boss is arranged on the surface of the bottom plate; one end of the cylindrical pin is fixedly connected with one side of the surface of the bottom plate; the first shell is movably arranged on the surface of the cylindrical pin in a sleeving manner; the second shell is movably arranged on the surface of the cylindrical pin in a sleeving manner; and one side of the closed ring is fixedly connected with one side of the surface of the first shell. According to the dull lock additional lock, the bottom plate, the grooves and the bosses are arranged, the bottom plate is used in the same way, the four bosses are arranged at the bottom end of the dull lock additional lock and are sunken into a hole opening door, the positioning effect is achieved, and even if the dull lock additional lock shakes, the lock body cannot fall off randomly due to the fact that the first shell and the second shell are tightly attached to the grooves.

Description

Technical Field

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

[0002] As the name suggests, a door lock is a device used to lock the door to prevent others from opening the door.

[0003] Patent Publication No. CN215255241U discloses a deadbolt lock structure comprising a housing, a tongue core structure mounted within the housing, a nut, and a lock ruler. The nut is drivingly connected to the tongue core structure. The nut is provided with a transmission hole, into which one end of the lock ruler is inserted. The transmission hole comprises a main hole adapted to fit within the lock ruler body and an indicator hole connected to the main hole to prevent assembly errors. The lock ruler comprises a lock ruler body and an indicator block disposed on the lock ruler body corresponding to the indicator hole. The lock ruler body is inserted into the main hole, and the indicator block is inserted into the indicator hole. By designing the transmission hole and lock ruler, the lock ruler can only be inserted into the nut in one direction, thereby preventing the lock ruler from being unusable due to incorrect installation.

[0004] As shown in the above technology, the ordinary deadbolt additional lock is fixed to the deadbolt through a base plate, and the latch is used inside the door to clamp the knob and outside the door to cover the lock hole for installation. Finally, the latch is locked with a padlock. The base plate does not have a positioning function. Once the additional lock shell is shaken after installation, the lock body is very likely to fall off. The internal and external locking devices cannot be used interchangeably, and the interchangeability is poor. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a deadlock additional lock, which solves the problem that the base plate has no positioning function, the additional lock shell is likely to fall off once it encounters shaking after installation, and the internal and external locking devices cannot be used interchangeably, resulting in poor interchangeability.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a deadlock additional lock, comprising:

[0007] A bottom plate, the bottom plate is annular in shape, and the surface of the bottom plate is provided with anti-slip lines;

[0008] A groove is provided on the surface of the bottom plate, and the shape of the groove is set to be annular;

[0009] A boss, the boss being arranged on the surface of the bottom plate;

[0010] A cylindrical pin, one end of which is fixedly connected to one side of the bottom plate surface;

[0011] a first housing, the first housing being movably sleeved on the surface of the cylindrical pin;

[0012] a second housing, the second housing being movably sleeved on the surface of the cylindrical pin;

[0013] a closed ring, one side of which is fixedly connected to one side of the first shell surface;

[0014] A symmetrical closed loop group, one side of which is fixedly connected to one side of the second shell surface.

[0015] Preferably, four bosses are evenly and symmetrically arranged.

[0016] Preferably, the number of the cylindrical pins is set to two, and the surface is polished smooth.

[0017] Preferably, the first shell and the second shell are both semicircular in shape, and reinforcement ribs are provided on the surface.

[0018] Preferably, the surface of the closed ring is polished smooth.

[0019] Preferably, the symmetrical closed loop group and the closed loop are adapted to each other.

[0020] Beneficial effects

[0021] The utility model provides a deadbolt additional lock. Compared with the prior art, it has the following beneficial effects:

[0022] (1) The deadbolt lock additional lock utilizes the arrangement of a base plate, a groove and a boss. The base plate is also used. Four bosses are sunken into the hole in the door to achieve a positioning effect. Even if shaking occurs, the lock body will not fall off randomly because the first shell and the second shell are tightly attached to the groove. A groove is provided at the top of the base plate for the first shell and the second shell to be stuck when locked. After locking the deadbolt lock and locking the knob inside the door, the key outside the door can also unlock the deadbolt lock.

[0023] (2) The deadbolt additional lock adopts a universal design, so this device can be used outside the door or inside the door, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0025] Figure 2 This is a bottom elevation view of the present utility model;

[0026] Figure 3 This is a top view of the utility model;

[0027] Figure 4 This is a cross-sectional illustration of the utility model.

[0028] In the figure: 1, bottom plate; 2, groove; 3, boss; 4, cylindrical pin; 5, first shell; 6, second shell; 7, closed ring; 8, symmetrical closed loop group. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 4 , this utility model provides two technical solutions:

[0031] Embodiment 1, deadbolt additional lock, comprising:

[0032] The bottom plate 1 is annular in shape and has anti-slip textures on its surface;

[0033] Groove 2, groove 2 is opened on the surface of the bottom plate 1, and the shape of groove 2 is set to be annular;

[0034] Boss 3, boss 3 is arranged on the surface of the bottom plate 1;

[0035] A cylindrical pin 4, one end of which is fixedly connected to one side of the surface of the base plate 1;

[0036] A first housing 5, which is movably sleeved on the surface of the cylindrical pin 4;

[0037] A second housing 6, which is movably sleeved on the surface of the cylindrical pin 4;

[0038] A closed ring 7, one side of which is fixedly connected to one side of the surface of the first housing 5;

[0039] A symmetrical closed-loop group 8, one side of the symmetrical closed-loop group 8 is fixedly connected to one side of the surface of the second shell 6, and the bottom plate 1, groove 2 and boss 3 are set. The bottom plate 1 is also used. Four bosses 3 are sunken into the open door to achieve a positioning effect. Even if shaking occurs, the lock body will not fall off randomly because the first shell 5 and the second shell 6 are tightly attached to the groove 2. A groove 2 is provided at the top of the bottom plate 1, which is used to get stuck when the first shell 5 and the second shell 6 are locked. After locking the deadlock and locking the knob inside the door, the key outside the door can also unlock the deadlock.

[0040] The main difference between the second embodiment and the first embodiment is that: the deadbolt has an additional lock, four bosses 3 are evenly and symmetrically arranged, the number of cylindrical pins 4 is set to two, the surface is polished smoothly, the first shell 5 and the second shell 6 are both semicircular in shape, and reinforcing ribs are set on the surface. The surface of the closed ring 7 is polished smoothly, the symmetrical closed loop group 8 and the closed ring 7 are adapted to each other, and a universal design is adopted, so this device can be used both outside the door and inside the door, and has strong adaptability.

[0041] The base plate 1 has four bosses, which can play a positioning role during installation and prevent external forces from moving the base plate 1 after installation. The base plate 1 has a stepped structure that can cooperate with the step position of the cylindrical shell and play a limiting role after locking. The lock shell consists of two halves, a first shell 5 and a second shell 6, and is fixed with two cylindrical pins 4, and is convenient for rotation. After the left and right shells are merged, there is a center hole in the middle lock position, which can be inserted into the lock beam of the padlock, so that the padlock can be used for locking. The shell adopts a cylindrical appearance, which is convenient for penetration and use.

[0042] At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.

[0043] During operation, the base plate 1 is added to the bottom of the deadlock. The deadlock does not belong to the scope of this application. After the first shell 5 and the second shell 6 are closed, the closed ring 7 and the symmetrical closed loop group 8 are interlaced, and then locked with a padlock. After use, the device is restored.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Deadlock additional lock, characterized in that, include: A bottom plate (1), the bottom plate (1) is annular in shape, and a surface of the bottom plate (1) is provided with anti-slip patterns; A groove (2), the groove (2) being provided on the surface of the bottom plate (1), and the shape of the groove (2) being set to be annular; A boss (3), the boss (3) being arranged on the surface of the base plate (1); A cylindrical pin (4), one end of which is fixedly connected to one side of the surface of the base plate (1); A first housing (5), the first housing (5) being movably sleeved on the surface of the cylindrical pin (4); A second housing (6), the second housing (6) being movably sleeved on the surface of the cylindrical pin (4); a closed ring (7), one side of the closed ring (7) being fixedly connected to one side of the surface of the first housing (5); A symmetrical closed loop group (8), one side of the symmetrical closed loop group (8) is fixedly connected to one side of the surface of the second shell (6).

2. The deadbolt additional lock according to claim 1, characterized in that: Four bosses (3) are evenly and symmetrically arranged.

3. The deadbolt additional lock according to claim 1, characterized in that: The number of the cylindrical pins (4) is set to two, and the surface is polished smooth.

4. The deadbolt additional lock according to claim 1, characterized in that: The first shell (5) and the second shell (6) are both semicircular in shape, and reinforcement ribs are provided on the surfaces.

5. The deadbolt additional lock according to claim 1, characterized in that: The surface of the closed ring (7) is polished and smooth.

6. The deadbolt additional lock according to claim 1, characterized in that: The symmetrical closed loop group (8) and the closed loop (7) are adapted to each other.

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