Door lock structure with indoor emergency unlocking function

Abstract

The utility model discloses a door lock structure with an indoor emergency unlocking function, and particularly relates to the field of door locks, the door lock structure comprises a rear panel and a front panel which are used for being installed on a door, a lock body is arranged between the rear panel and the front panel, the lock body comprises a shell, a spring bolt is movably arranged at one end of the shell, two sides of the spring bolt are fixedly connected with pull rods, and the pull rods are fixedly connected with the lock body. The end, away from the spring bolt, of the pull rod movably penetrates through the shell and extends to the outer side of the shell. A pull plate is slidably installed on the rear panel, one end of the pull plate is connected with the end, located on the outer side of the shell, of the pull rod, and a push button is installed at the other end of the pull plate and arranged on the side, away from the lock body, of the rear panel. According to the utility model, by pushing the push button, the push button drives the pull plate and the pull rod to pull the spring bolt towards the inner side of the shell, so that the purpose of opening a door can be realized, the purpose of emergency door opening can also be realized indoors even under the extreme condition that a transmission structure such as a shifting peach or a square tube is damaged, and dangers can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of door locks, and more specifically, to a door lock structure with an indoor emergency unlocking function. Background Art

[0002] Door locks are a common and vital safety device. In our daily lives, whether it is at home, in commercial places or in public buildings, they are indispensable. Door locks are generally composed of a lock body, a lock tongue, front and rear panel components, a door handle, etc. The door can be opened by turning the door handle to drive the lock tongue to retract into the lock body.

[0003] In the extreme case that the transmission structure or the lock body disc is damaged, the current door lock cannot be opened indoors. Utility Model Content

[0004] The utility model provides a door lock structure with an indoor emergency unlocking function, and aims to solve the problem that the existing door lock cannot open the door indoors in the extreme case that the transmission structure or the lock body disc is damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a door lock structure with an indoor emergency unlocking function, comprising a rear panel and a front panel for installation on the door, a lock body is arranged between the rear panel and the front panel, the lock body comprises a shell, a lock tongue is movably arranged at one end of the shell, and pull rods are fixedly connected to both sides of the lock tongue, and one end of the pull rod away from the lock tongue movably passes through the shell and extends to the outside of the shell; a pull plate is slidably installed on the rear panel, one end of the pull plate is connected to an end of the pull rod located on the outside of the shell, and a push button is installed on the other end of the pull plate, and the push button is arranged on the side of the rear panel away from the lock body.

[0006] In a preferred embodiment, one end of the pull rod located outside the housing has a bent portion, and one end of the pull plate extends into a position between the bent portion and the end of the lock body.

[0007] In a preferred embodiment, a peach is rotatably connected to the inside of the shell, and both sides of the peach have protrusions. Side grooves are opened on the side walls of the two pull rods, and the two protrusions are respectively located on the inner sides of the two side grooves. An elastic component is arranged on the inner side of the shell, and the two ends of the elastic component are respectively connected to the lock tongue and the shell. The elastic component is used to keep the lock tongue on the inner side of the shell, and a square pass is inserted on the peach.

[0008] In a preferred embodiment, a rear handle is rotatably connected to the rear panel, a front handle is rotatably connected to the front panel, and two ends of the square tube are fixedly mounted to the rear handle and the front handle respectively.

[0009] In a preferred embodiment, a knob is rotatably connected to the rear handle, a fake gallbladder is rotatably connected to the interior of the front handle, a connecting piece and a transmission piece are sequentially arranged inside the fake gallbladder near one end of the front panel, the fake gallbladder is connected to the connecting piece, a locking ruler is arranged inside the square tube, and the two ends of the locking ruler are respectively inserted into the knob, the connecting piece and the transmission piece.

[0010] In a preferred embodiment, two guide grooves are provided on the side walls of the transmission member, iron beads are provided inside the two guide grooves, grooves are provided on both sides of the front panel, and notches are provided on both sides of the end of the front handle. When the iron beads are located in the notches and grooves and the front handle and the front panel are engaged, the rear handle and the front handle are locked.

[0011] In a preferred embodiment, one end of the guide groove has a slope.

[0012] In a preferred embodiment, a slot is provided at one end of the fake heart near the outer side of the front handle.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model can achieve the purpose of opening the door by pushing the push button, so that the push button drives the pull plate and the pull rod to pull the lock tongue toward the inner side of the shell. Even in the extreme case that the transmission structure such as the peach or the square pass is damaged, the purpose of emergency door opening can be achieved indoors to avoid the occurrence of danger.

[0015] 2. The utility model can achieve the purpose of locking and unlocking by turning the knob indoors, and can also achieve the purpose of locking and unlocking by turning the false heart with a tool outdoors.

[0016] 3. The utility model utilizes the principle of magnet attraction to suck out the lock tongue, thereby reducing the need to lock with a key or lift the rear handle or front handle to lock. The lock tongue is hooked on the column on the housing by an elastic component, and the lock tongue is in a retracted state when the door is open, which facilitates straight-pushing the door to close, reduces the collision between the lock tongue and the door frame, and reduces noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a top view of the utility model.

[0019] Figure 3 It is a schematic diagram of the local structure of the utility model Figure 1 .

[0020] Figure 4 It is a structural schematic diagram of the lock body of the utility model.

[0021] Figure 5 For this utility model Figure 4 Top view of the .

[0022] Figure 6 It is a cross-sectional view of the local structure of the utility model.

[0023] Figure 7 It is a schematic diagram of the local structure of the utility model Figure 2 .

[0024] Figure 8 For this utility model Figure 7 Exploded diagram.

[0025] Fig. 9 It is a schematic diagram of the local structure of the utility model Figure 3 .

[0026] Fig.10 It is a schematic diagram of the local structure of the utility model Figure 4 .

[0027] The accompanying drawings are marked as follows: 1. rear panel; 11. rear handle; 12. knob; 2. front panel; 20. groove; 21. front handle; 210. notch; 22. false heart; 221. straight groove; 3. lock body; 31. shell; 32. lock tongue; 321. elastic component; 33. pull rod; 331. side groove; 332. bending part; 34. peach; 341. protrusion; 4. pull plate; 41. push button; 5. square tube; 6. lock ruler; 61. transmission part; 611. guide groove; 612. inclined surface; 62. iron bead; 63. connecting part; 7. buckle box. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] Refer to the instruction manual Figure 1-Figure 10 A door lock structure with an indoor emergency unlocking function includes a rear panel 1 and a front panel 2 for installation on the door, a lock body 3 is arranged between the rear panel 1 and the front panel 2, the lock body 3 includes a shell 31, a lock tongue 32 is movably arranged at one end of the shell 31, and both sides of the lock tongue 32 are fixedly connected with a pull rod 33, and the end of the pull rod 33 away from the lock tongue 32 movably passes through the shell 31 and extends to the outside of the shell 31.

[0030] The shell 31 is internally rotatably connected with a paddle 34, both sides of which have protrusions 341, and the side walls of the two pull rods 33 are provided with side grooves 331, the two protrusions 341 are respectively located on the inner sides of the two side grooves 331, and an elastic component 321 is provided on the inner side of the shell 31, and the two ends of the elastic component 321 are respectively connected to the lock tongue 32 and the shell 31, and the elastic component 321 is used to keep the lock tongue 32 on the inner side of the shell 31, and a square tube 5 is inserted into the paddle 34.

[0031] A rear handle 11 is rotatably connected to the rear panel 1 , a front handle 21 is rotatably connected to the front panel 2 , and two ends of the square passage 5 are fixedly mounted to the rear handle 11 and the front handle 21 , respectively.

[0032] In this embodiment, the rear panel 1 is installed on the inner side of the door, the front panel 2 is installed on the outer side of the door, and the elastic component 321 is a tension spring. When the door is opened, the tension spring keeps the lock tongue 32 on the inner side of the housing 31. A buckle box 7 is installed on the door frame, and a magnet is arranged inside the buckle box 7. A magnet is also arranged at the end of the lock tongue 32. When the door is closed, the two magnets attract each other, overcome the tension of the tension spring, and thus attract the lock tongue 32 to the inner side of the buckle box 7 to achieve the purpose of locking the door. When opening the door, the rear handle 11 or the front handle 21 is rotated to drive the square tube 5 to rotate, and the square tube 5 drives the peach 34 to rotate. The peach 34 pulls the side groove 331 through the protrusion 341 to drive the pull rod 33 to move, and the pull rod 33 pulls the lock tongue 32 to move toward the inside of the housing 31, so that the lock tongue 32 is separated from the buckle box 7, and the purpose of opening the door is achieved.

[0033] Refer to the instruction manual Figure 1-Figure 6 A pull plate 4 is slidably installed on the rear panel 1, one end of the pull plate 4 is connected to one end of the pull rod 33 located outside the shell 31, and the other end of the pull plate 4 is installed with a push button 41, which is arranged on the side of the rear panel 1 away from the lock body 3.

[0034] One end of the pull rod 33 located outside the housing 31 has a bent portion 332 , and one end of the pull plate 4 extends into a position between the bent portion 332 and the end of the lock body 3 .

[0035] In this embodiment, in the extreme case that the transmission structure such as the peach 34 or the square passage 5 is damaged, when it is necessary to open the door indoors, Figure 6 and Figure 4 As shown, the push button 41 is pushed, and the push button 41 pulls the pull rod 33 through the pull plate 4, thereby driving the lock tongue 32 to move toward the inside of the housing 31, thereby achieving the purpose of opening the door without turning the rear handle 11 or the front handle 21.

[0036] Refer to the instruction manual Figure 1-Figure 3 and Figure 6-Figure 10The rear handle 11 is rotatably connected to a knob 12, the interior of the front handle 21 is rotatably connected to a fake gallbladder 22, the interior of the fake gallbladder 22 near the front panel 2 is sequentially provided with a connecting member 63 and a transmission member 61, the fake gallbladder 22 is connected to the connecting member 63, and a locking ruler 6 is provided inside the square passage 5, and the two ends of the locking ruler 6 are respectively inserted into the knob 12, the connecting member 63 and the transmission member 61.

[0037] Furthermore, two guide grooves 611 are provided on the side wall of the transmission member 61, and iron beads 62 are provided inside the two guide grooves 611. Grooves 20 are provided on both sides inside the front panel 2, and notches 210 are provided on both sides of the end of the front handle 21. The iron beads 62 are located inside the notches 210 and the grooves 20. When the front handle 21 and the front panel 2 are engaged, the rear handle 11 and the front handle 21 are locked.

[0038] Furthermore, one end of the guide groove 611 has a slope 612 .

[0039] Furthermore, a straight groove 221 is formed at one end of the fake heart 22 close to the outer side of the front handle 21 .

[0040] In this embodiment, when the door needs to be locked, the knob 12 is turned inside the door, the knob 12 drives the lock ruler 6 to rotate, the lock ruler 6 drives the transmission member 61 to rotate, and the transmission member 61 presses the iron bead 62 into the groove 20 through the inclined surface 612, and the front handle 21 and the front panel 2 are engaged, so that the iron bead 62 locks the front panel 2 and the front handle 21. Since the front handle 21 is locked on the front panel 2, the front handle 21 and the rear handle 11 can no longer be rotated, and the door cannot be opened by the front handle 21 and the rear handle 11.

[0041] When unlocking, the knob 12 is rotated in the opposite direction, and the knob 12 drives the transmission member 61 to rotate through the lock ruler 6, or the false liner 22 is rotated, and the false liner 22 drives the transmission member 61 to rotate through the connecting member 63, so that the inclined surface 612 leaves the iron bead 62, and the door is unlocked. When the rear handle 11 and the front handle 21 are rotated again, the front handle 21 rotates relative to the front panel 2, and the iron bead 62 can slide out of the groove 20, so that the iron bead 62 can no longer play the purpose of anti-locking, and the door can be unlocked and opened.

[0042] It should be noted that since the fake liner 22 is outside the door, the fake liner 22 is set on the inner side of the front handle 21 and cannot be unlocked directly by hand. However, a straight groove 221 is set on the fake liner 22. The purpose of unlocking can be achieved by using a tool or a coin stuck in the straight groove 221 and rotating it. This design can also be used in an emergency.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A door lock structure with indoor emergency unlocking function, characterized in that: The invention comprises a rear panel (1) and a front panel (2) for installation on a door, a lock body (3) is arranged between the rear panel (1) and the front panel (2), the lock body (3) comprises a shell (31), a lock tongue (32) is movably arranged at one end of the shell (31), both sides of the lock tongue (32) are fixedly connected with a pull rod (33), and the end of the pull rod (33) away from the lock tongue (32) movably penetrates the shell (31) and extends to the outside of the shell (31); A pull plate (4) is slidably mounted on the rear panel (1), one end of the pull plate (4) is connected to an end of the pull rod (33) located outside the shell (31), and a push button (41) is mounted on the other end of the pull plate (4), and the push button (41) is arranged on a side of the rear panel (1) away from the lock body (3).

2. A door lock structure with indoor emergency unlocking function according to claim 1, characterized in that: One end of the pull rod (33) located outside the shell (31) has a bent portion (332), and one end of the pull plate (4) extends into a position between the bent portion (332) and the end of the lock body (3).

3. A door lock structure with indoor emergency unlocking function according to claim 1, characterized in that: A paddle (34) is rotatably connected inside the shell (31), and both sides of the paddle (34) are provided with protrusions (341). Side grooves (331) are provided on the side walls of the two pull rods (33), and the two protrusions (341) are respectively located on the inner sides of the two side grooves (331). An elastic component (321) is provided on the inner side of the shell (31), and the two ends of the elastic component (321) are respectively connected to the lock tongue (32) and the shell (31), and the elastic component (321) is used to keep the lock tongue (32) on the inner side of the shell (31). A square tube (5) is inserted into the paddle (34).

4. A door lock structure with indoor emergency unlocking function according to claim 3, characterized in that: The rear panel (1) is rotatably connected to a rear handle (11), the front panel (2) is rotatably connected to a front handle (21), and the two ends of the square tube (5) are respectively fixedly mounted to the rear handle (11) and the front handle (21).

5. A door lock structure with indoor emergency unlocking function according to claim 4, characterized in that: The rear handle (11) is rotatably connected to a knob (12), the interior of the front handle (21) is rotatably connected to a false heart (22), the interior of the false heart (22) close to one end of the front panel (2) is provided with a connecting piece (63) and a transmission piece (61) in sequence, the false heart (22) is connected to the connecting piece (63), and the interior of the square tube (5) is provided with a locking ruler (6), and the two ends of the locking ruler (6) are respectively inserted into the interior of the knob (12), the connecting piece (63) and the transmission piece (61).

6. A door lock structure with indoor emergency unlocking function according to claim 5, characterized in that: Two guide grooves (611) are provided on the side wall of the transmission member (61), and iron beads (62) are provided inside the two guide grooves (611). Grooves (20) are provided on both sides inside the front panel (2), and notches (210) are provided on both sides of the end of the front handle (21). The iron beads (62) are located inside the notches (210) and the grooves (20). When the front handle (21) and the front panel (2) are engaged, the rear handle (11) and the front handle (21) are locked.

7. A door lock structure with indoor emergency unlocking function according to claim 6, characterized in that: One end of the guide groove (611) has an inclined surface (612).

8. The door lock structure with indoor emergency unlocking function according to claim 5, characterized in that: The fake gallbladder (22) is provided with a straight groove (221) at one end thereof which is located close to the outer side of the front handle (21).

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