Automatic spring lock structure of armrest

Abstract

The utility model belongs to the technical field of door and window hardware, and particularly relates to an automatic spring lock structure of a handrail, which solves the problems of unstable structure and poor safety in the prior art, and comprises a shell handrail, a lock body and a frame body, the interior of the shell handrail is of a cavity structure, the lock body is positioned in the cavity, and the frame body is arranged in the cavity. An upper hook body and a lower hook body are embedded in the two ends of the shell handrail correspondingly, adjusting screws are arranged on the upper hook body and the lower hook body correspondingly, first elastic pieces are arranged in the adjusting screws, and a child lock notch is formed in one side of the shell handrail. The hook heads of the upper hook body and the lower hook body extend into the window frame, and the upper hook body and the lower hook body hook the window frame tightly by screwing the adjusting screw, so that the shell handrail firmly wraps the lock body, is tightly attached to the frame body and is not prone to loosening, and the structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hardware, in particular to an automatic latching structure for a handrail. Background Art

[0002] At present, sliding doors and windows include a frame and a door leaf or window leaf that slides in the frame. In the sliding window, it is generally necessary to install a sliding door and window lock. The sliding door and window lock is more commonly used. The traditional latch lock has a simple structure. A hook body is provided in the frame, and a lock body is provided on the window leaf. When closing the window, the hook groove is engaged with the hook body. Under the action of the spring, the window leaf cannot move relative to the frame. When unlocking, the handle is pushed hard, and the handle rotates after overcoming the spring force, thereby separating the hook body from the hook groove.

[0003] The authorization announcement number in the prior art is: CN218493357U, and the name is an automatic latch structure for doors and windows, including a lock body, an unlocking assembly, a locking assembly, a window fixing part and an anti-theft assembly. A cover plate is provided on the rear side of the lock body, an unlocking cavity groove is provided on the front side, and an unlocking assembly is built in. A locking assembly is provided on the side close to the cover plate, and a window fixing part is installed above it, and an anti-theft assembly is installed below it. The locking assembly is a key part, which is composed of a locking groove, a first movable tongue piece, a second movable tongue piece and a fixed column. Two groups of fixed columns are respectively connected to the first and second movable tongue pieces. This design enables automatic closure to be achieved through the tension of the tongue piece spring after the tongue piece is opened. However, the lock body and the frame are not tightly joined. Screws are usually used to fix them on the market, which are easy to loosen. Traditional latches are easy to pull open, and ignorant children are also easy to pull and play with them. Inadvertently opening the door can easily cause danger.

[0004] The authorization announcement number in the prior art is: CN215255406U, and the name is a new type of door and window locking structure, which includes components such as window frame, window sash, arc groove, arc plate, locking groove, fixed seat, circular slide groove and circular locking rod. The window sash is hinged in the window frame, and an open arc groove is provided at the bottom of the window frame, and an arc plate is built in, and a plurality of locking grooves are opened on the plate. A fixed seat is provided on one side of the window sash, and a circular slide groove is opened in the seat. A circular locking rod is slidably installed in the groove. The bottom of the rod can be engaged with the locking groove, and the top is connected to a spring to achieve automatic reset. This design is convenient for locking the window sash to prevent it from moving at will. However, this patent has the same problems as the above patents and is less safe. Utility Model Content

[0005] The utility model aims to provide an automatic latching structure for an armrest, which solves the problems of unstable structure and poor safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic armrest lock structure, comprising an outer shell armrest, a lock body and a frame, the interior of the outer shell armrest is a cavity structure, the lock body is located inside the cavity, an upper hook body and a lower hook body are respectively embedded at both ends of the outer shell armrest, the upper hook body and the lower hook body are both provided with an adjustment screw, and an elastic member 1 is provided inside the adjustment screw;

[0007] A child lock notch is provided on one side of the shell armrest, and the interior of the lock body includes a pressing portion, a lock core, a child lock, a balance transmission line, a hook and a positioning column, and the child lock is installed inside the lock body.

[0008] Preferably, the pressing portion is located in the middle of the lock body, the pressing portion is configured as a button and a button fixing frame, the button is slidably connected to the inside of the button fixing block, and an elastic member 2 is disposed inside the button.

[0009] Preferably, two symmetrically arranged sleeve columns are provided inside the button, a brake piece is nested inside the sleeve columns, and two symmetrically arranged positioning columns are provided inside the lock body, and the sleeve columns correspond to the positioning columns.

[0010] Preferably, the lock core includes a double tongue piece, a hook spring and a pressure plate, the double tongue piece is movably hinged inside the lock core, one end of the double tongue piece extends outward, the other end of the double tongue piece is located above the child lock, and the double tongue piece is in contact with the gate piece.

[0011] Preferably, hook portions are provided on both sides of the button, and a balance transmission line and a hook are provided inside the lock body, and two ends of the balance transmission line are respectively hooked on the hook portions.

[0012] Preferably, a square groove is provided inside the frame, and the lock core portion has the same shape and size as the square groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model arranges the lock body and the frame, and the hook heads of the upper hook and the lower hook extend into the frame. By tightening the adjusting screw, the upper hook and the lower hook are respectively hooked to the frame, so that the outer shell armrest will firmly wrap the lock body and fit tightly to the frame without being easily loosened, and the structure is more stable.

[0015] 2. The utility model provides a child lock and double tongues, etc. When the user turns the child lock with a key outside the lock body, the bracket-shaped cylindrical child lock core can hold the double tongues, thereby limiting the movement of the tongues and making the lock immobile, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the shell handrail of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer shell handrail of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the pressing part of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the balanced transmission line of the utility model.

[0021] In the figure: 1. outer shell armrest; 101. upper hook body; 102. lower hook body; 103. adjusting screw; 104. elastic part 1; 2. lock body; 3. pressing part; 301. button; 302. button fixing frame; 303. gate piece; 304. elastic part 2; 305. sleeve column; 306. hook part; 4. lock core; 401. double tongue piece; 402. hook spring; 403. pressure plate; 5. child lock; 6. balance transmission line; 7. hook; 8. positioning column; 9. frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The automatic armrest lock structure includes an outer shell armrest 1, a lock body 2 and a frame 9. The inner part of the outer shell armrest 1 is a cavity structure. The lock body 2 is located inside the cavity. An upper hook 101 and a lower hook 102 are respectively nested at both ends of the outer shell armrest 1. An adjusting screw 103 is provided on the upper hook 101 and the lower hook 102. An elastic member 104 is provided inside the adjusting screw 103. A child lock 5 notch is provided on one side of the outer shell armrest 1. The inner part of the lock body 2 includes a pressing portion 3. lock cylinder 4, child lock 5, balance transmission line 6, hook 7 and positioning column 8. The child lock 5 is installed inside the lock body 2. Through the arrangement of the lock body 2 and the frame 9, the hook heads of the upper hook body 101 and the lower hook body 102 extend into the frame 9, and by tightening the adjusting screw 103, the upper hook body 101 and the lower hook body 102 are respectively hooked to the frame 9, so that the outer shell armrest 1 will firmly wrap the lock body 2, and stick to the frame 9 without being easy to loosen, and the structure is more stable.

[0024] See also Figure 3-4 The pressing part 3 is located in the middle of the lock body 2. The pressing part 3 is configured as a button 301 and a button fixing frame 302. The button 301 is slidably connected to the inside of the button fixing block. An elastic member 304 is provided inside the button 301. Through the configuration of the child lock 5 and the double tongue piece 401 and other structures, the user turns the child lock 5 with a key outside the lock body 2, and the bracket-shaped cylindrical child lock core 4 can support the double tongue piece 401, thereby limiting the movement of the tongue piece so that the lock cannot move, thereby increasing safety.

[0025] See also Figure 1-5 Two symmetrically arranged sleeve columns 305 are provided inside the button 301, and a gate piece 303 is nested inside the sleeve column 305. Two symmetrically arranged positioning columns 8 are provided inside the lock body 2, and the sleeve column 305 corresponds to the positioning column 8. The lock core 4 includes a double tongue piece 401, a hook spring 402 and a pressure plate 403. The double tongue piece 401 is movably hinged inside the lock core 4, one end of the double tongue piece 401 extends outward, and the other end of the double tongue piece 401 is located above the child lock 5. The double tongue piece 401 contacts the gate piece 303. Hooking parts 306 are provided on both sides of the button, and a balanced transmission line 6 and a hook 7 are provided inside the lock body 2. The two ends of the balanced transmission line 6 are respectively hooked on the hooking parts 306. A square groove is opened inside the frame 9, and the shape and size of the part of the lock core 4 are the same as those of the square groove.

[0026] The specific implementation process of the utility model is as follows: during installation, the user places the lock body 2 in the inner cavity of the outer shell armrest 1, and inserts it on the matching frame 9. The hook heads of the upper hook body 101 and the lower hook body 102 extend into the interior of the frame 9, and by tightening the adjustment screw 103, the hook body 101 is continuously penetrated into the interior of the hook body 101. Through the rebound force of the elastic member 104, the upper hook body 101 and the lower hook body 102 are respectively hooked to the frame 9. As the adjustment screw 103 is tightened, the outer shell armrest 1 will firmly wrap the lock body 2 and fit tightly to the frame 9. The body 9 is not easy to loosen. When in use, the button 301 is pressed, and the gate piece 303 moves downward to resist the double tongue piece 401. The double tongue pieces are opened outward respectively to realize the opening action, and the closing action is realized under the pulling force of the hook spring 402. The elastic member 304 provides an upward rebound force for the button 301 to realize the action of pressing down to open and rebounding to close. In order to make the user press easily and freely, the balance transmission line 6 plays a role in balancing the pressing force, so that the user can achieve a satisfactory pressing effect in any direction of pressing.

[0027] When the user turns the child lock 5 with a key outside the lock body 2, the bracket-shaped cylindrical child lock core can resist the double tongues 401, thereby limiting the movement of the tongues and making the lock unable to move, thereby increasing safety.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic armrest locking structure, comprising an outer armrest (1), a lock body (2) and a frame (9), characterized in that: The interior of the shell armrest (1) is a cavity structure, the lock body (2) is located inside the cavity, an upper hook body (101) and a lower hook body (102) are respectively nested at two ends of the shell armrest (1), an adjustment screw (103) is provided on the upper hook body (101) and the lower hook body (102), and an elastic member 1 (104) is provided inside the adjustment screw (103); A child lock (5) notch is provided on one side of the shell armrest (1); the interior of the lock body (2) comprises a pressing portion (3), a lock core (4), a child lock (5), a balance transmission line (6), a hook (7) and a positioning column (8); and the child lock (5) is installed inside the lock body (2).

2. The automatic armrest locking structure according to claim 1 is characterized in that: The pressing portion (3) is located in the middle of the lock body (2), and the pressing portion (3) is configured as a button (301) and a button fixing frame (302). The button (301) is slidably connected to the inside of the button fixing block, and an elastic member 2 (304) is provided inside the button (301).

3. The automatic armrest locking structure according to claim 2 is characterized in that: The button (301) is provided with two symmetrically arranged sleeve columns (305), a gate piece (303) is nested inside the sleeve columns (305), and the lock body (2) is provided with two symmetrically arranged positioning columns (8), the sleeve columns (305) and the positioning columns (8) correspond to each other.

4. The automatic armrest locking structure according to claim 3 is characterized in that: The lock core (4) comprises a double tongue piece (401), a hook spring (402) and a pressure plate (403); the double tongue piece (401) is movably hinged inside the lock core (4); one end of the double tongue piece (401) extends outward; the other end of the double tongue piece (401) is located above the child lock (5); and the double tongue piece (401) is in contact with the gate piece (303).

5. The automatic armrest locking structure according to claim 4 is characterized in that: Hooking portions (306) are arranged on both sides of the button, and a balanced transmission line (6) and a hook (7) are arranged inside the lock body (2), and both ends of the balanced transmission line (6) are respectively hooked on the hooking portions (306).

6. The automatic armrest locking structure according to claim 1 is characterized in that: A square groove is provided inside the frame (9), and the lock core (4) has the same shape and size as the square groove.

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