High-strength special vehicle door lock

Abstract

The utility model provides a high-strength special car door lock which comprises a lock body fixed on a door and a lock catch fixed on a door frame, the lock body comprises a lock shell fixed on the door, a rotating shaft is rotatably arranged in one end of the lock shell, a pull handle is fixed on the rotating shaft, a spring bolt is fixed on the other side of the pull handle on the rotating shaft, and the lock catch is fixed on the lock shell. After the pull handle is pressed down, the spring bolt is clamped on the lock catch to lock the door; the vehicle door is opened or closed by lifting or closing the pull handle, so that the vehicle door is simple and convenient to open and close; the inner door opening device is further arranged on the inner side of the vehicle door, so that inner door opening is safer and more convenient; the pull handle can lock the vehicle door through a mechanical lock and a padlock, and double safety protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of special vehicle door locks, in particular to a high-strength special vehicle door lock. Background Art

[0002] Special vehicles such as mobile emergency rescue vehicles provide necessary rescue conditions for power, communication and emergency rescue sites. The door locks of such vehicles need to withstand greater stress due to the special use of built-in equipment. Existing car door locks are passenger car door locks and container door locks. The strength of passenger car door locks is insufficient, resulting in many vehicle doors being opened accidentally. Container door locks are fixed up and down with connecting rods, and the lock part affects the appearance and poses a safety hazard. Utility Model Content

[0003] The utility model aims to provide a high-strength special vehicle door lock, which has small volume, high strength, is convenient for opening and closing doors and has good safety.

[0004] The technical solution of the utility model is as follows:

[0005] A high-strength special vehicle door lock comprises a lock body fixed on the door and a lock buckle fixed on the door frame, wherein the lock body comprises a lock shell fixed on the door, a rotating shaft is rotatably arranged in one end of the lock shell, a pull handle is fixed on the rotating shaft, a lock tongue is fixed on the other side of the pull handle on the rotating shaft, and when the pull handle is pressed down, the lock tongue is clamped on the lock buckle to lock the door.

[0006] Among them, a mounting plate is fixed in the lock shell, and a pressing seat is hinged on the mounting plate. After the pull handle is pressed down and closed, the pressing seat can clamp the pull handle; a locking plate is arranged on the pressing seat, and a mechanical lock is arranged on the pull handle. When the mechanical lock is closed, the locking plate is locked, and the pressing seat cannot be pressed down.

[0007] Wherein, the lock includes a fixing plate fixed on the door frame, vertical plates arranged on both sides of the fixing plate and a fixing shaft arranged on the vertical plates.

[0008] Among them, a through hole is provided on the lock shell corresponding to the position of the lock plate, and an inner door opening device is provided on the back side of the lock shell on the door. The inner door opening device includes a sleeve fixed on the door and a spring and a push rod arranged on the sleeve. The push rod is facing the through hole, and the lock plate is pushed out when the push rod is pressed down, the card seat is pressed to open, and the handle is pulled to open, so that the door can be opened from the inside.

[0009] Wherein, a second spring is arranged between the lock housing and the pull handle.

[0010] Wherein, an elastic limiting block is installed in the lock housing.

[0011] Among them, a lock plate is arranged on the mounting plate, a second lock plate is arranged on the pull handle, and a padlock can be installed between the lock plate and the first lock plate.

[0012] Wherein, a protective cover is arranged at the mechanical lock position on the handle.

[0013] Wherein, an induction switch is installed on the lock housing, and the induction switch is electrically connected to the special vehicle light circuit, and the light turns on when the vehicle door is opened.

[0014] The utility model has the following beneficial effects:

[0015] The utility model realizes opening or closing of the vehicle door by lifting or closing the pull handle, which makes the door opening and closing simple; an inner door opening device is also arranged on the inner side of the vehicle door, which makes the inner door opening safer and more convenient; the pull handle can realize locking of the vehicle door by a mechanical lock and a padlock, thereby achieving double safety protection. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the structure of the utility model after the handle is closed;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model after the handle is lifted;

[0019] The reference numerals in the figure are as follows:

[0020] 1-lock body; 2-lock buckle; 3-lock shell; 4-rotating shaft; 5-pull handle; 6-lock tongue; 7-mounting plate; 8-pressing seat; 9-torsion spring; 10-engaging surface; 11-locking plate; 12-mechanical lock; 13-fixed plate; 14-vertical plate; 15-fixed shaft; 16-through hole; 17-inner door opening device; 18-sleeve 19-push rod; 20-spring two; 21-elastic limit block; 22-lock plate; 23-lock plate two; 24-protective cover; 25-induction switch; 26-door; 27-door frame. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] like Figure 1-3 As shown, a high-strength special vehicle door lock includes a lock body 1 fixed on a special vehicle compartment door 26 and a lock buckle 2 fixed on a door frame 27, wherein the lock body 1 includes a lock shell 3 fixed on the door 26, a rotating shaft 4 is rotatably provided in one end of the lock shell 3, a pull handle 5 is fixed on the rotating shaft 4, a lock tongue 6 is fixed on the other side of the pull handle 5 on the rotating shaft 4, and when the pull handle 5 is pressed down, the lock tongue 6 is stuck on the lock buckle 2 to lock the door.

[0023] Furthermore, a mounting plate 7 is fixed in the lock shell 3, a pressing seat 8 is hinged on the mounting plate 7, a torsion spring 9 is arranged on the pressing seat 8, a locking surface 10 is arranged on the pull handle 5, after the pull handle 5 is pressed down and closed, the pressing seat 8 clamps the locking surface 10, so that the pull handle 5 can be clamped; a locking plate 11 is arranged on the pressing seat 8, and a mechanical lock 12 is arranged on the pull handle 5, when the mechanical lock 12 is closed, the locking plate 11 is locked, and the pressing seat 8 cannot be pressed down, and the pressing seat 8 can be pressed freely when the mechanical lock 12 is opened.

[0024] Furthermore, the lock buckle 2 includes a fixed plate 13 fixed on the door frame 27, vertical plates 14 arranged on both sides of the fixed plate 13, and a fixed shaft 15 arranged on the vertical plate 14; the fixed shaft 15 is fixed to the vertical plate 14 through a nut; the lock buckle 2 of this structure has high overall strength and can fit tightly with the lock tongue 6; the fixed shaft 15 is fixed with a nut for easy maintenance and replacement.

[0025] Furthermore, a through hole 16 is provided on the lock shell 3 at a position corresponding to the lock plate 11, and an inner door opening device 17 is provided on the back side of the lock shell 3 on the door. The inner door opening device 17 includes a sleeve 18 fixed on the door and a spring and a push rod 19 provided on the sleeve 18. The push rod 19 faces the through hole 16. When the push rod 19 is pressed down, the lock plate 11 is pushed out, the card seat 8 is pressed to open, and the handle 5 is opened, so that the door is opened from the inside.

[0026] Furthermore, a spring 20 is provided between the lock housing 3 and the handle 5, so that the handle 5 can be closed with less effort.

[0027] Furthermore, an elastic limit block 21 is installed in the lock housing 3; when the handle 5 is opened, the elastic limit block 21 plays a role in bouncing the handle 5 open; after the handle 5 is pressed down, the elastic limit block 21 is used to limit the pressed position of the handle 5.

[0028] Furthermore, a lock plate 22 is provided on the mounting plate 7, and a second lock plate 23 is provided on the pull handle 5. A padlock can be installed between the lock plate 22 and the first lock plate.

[0029] Furthermore, a protective cover 24 is provided at the position of the mechanical lock 12 on the handle 5 .

[0030] Furthermore, a sensing switch 25 is installed on the lock housing 3, and the sensing switch 25 is electrically connected to a dedicated vehicle light circuit, so that the lights are turned on when the vehicle door is opened, thereby improving vehicle safety.

[0031] Furthermore, the lock housing 3 is formed by stamping and welding of stainless steel, which is rust-proof and wear-resistant, greatly improving the service life of the door lock; the lock tongue 6 is made of stainless steel wire cutting, and the lock tongue 6 and the rotating shaft 4 are interference fit to increase its stability and strength; the rotating shaft 4 is made of solid stainless steel rod, which greatly improves the firmness, making it less likely for the vehicle door to be accidentally opened while driving.

[0032] In the description of the utility model, it is necessary to understand that the terms "left side", "right side", "inside", "front end", "rear end", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0033] In the utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-strength special vehicle door lock, comprising a lock body (1) fixed on a door (26) and a lock catch (2) fixed on a door frame (27), characterized in that: The lock body (1) comprises a lock shell (3) fixed on the door (26); a rotating shaft (4) is rotatably arranged in one end of the lock shell (3); a pull handle (5) is fixed on the rotating shaft (4); a lock tongue (6) is fixed on the other side of the pull handle (5) on the rotating shaft (4); when the pull handle (5) is pressed down, the lock tongue (6) is clamped on the lock buckle (2) to lock the door.

2. A high-strength special door lock according to claim 1, characterized in that: A mounting plate (7) is fixed inside the lock housing (3), and a pressing seat (8) is hinged on the mounting plate (7). When the pull handle (5) is pressed down and closed, the pressing seat (8) can lock the pull handle (5); a locking plate (11) is arranged on the pressing seat (8), and a mechanical lock (12) is arranged on the pull handle (5). When the mechanical lock (12) is closed, the locking plate (11) is locked, and the pressing seat (8) cannot be pressed down.

3. A high-strength special door lock according to claim 1, characterized in that: The lock buckle (2) comprises a fixing plate (13) fixed on a door frame (27), vertical plates (14) arranged on both sides of the fixing plate (13), and a fixing shaft (15) arranged on the vertical plates (14).

4. A high-strength special door lock according to claim 1, characterized in that: A through hole (16) is provided on the lock housing (3) at a position corresponding to the lock plate (11); an inner door opening device (17) is provided on the back side of the lock housing (3) on the door (26); the inner door opening device (17) comprises a shaft sleeve (18) fixed on the door, a spring and a push rod (19) provided on the shaft sleeve (18); the push rod (19) faces the through hole (16); when the push rod (19) is pressed down, the lock plate (11) is pushed out, the card seat (8) is pressed to open, and the handle (5) is opened, so that the door is opened from the inside.

5. A high-strength special vehicle door lock according to claim 1, characterized in that: A second spring (20) is provided between the lock housing (3) and the pull handle (5).

6. A high-strength special vehicle door lock according to claim 1, characterized in that: An elastic limiting block (21) is installed in the lock housing (3).

7. A high-strength special vehicle door lock according to claim 2, characterized in that: A lock plate (22) is provided on the mounting plate (7), a second lock plate (23) is provided on the pull handle (5), and a padlock can be installed between the lock plate (22) and the first lock plate.

8. A high-strength special vehicle door lock according to claim 1, characterized in that: A protective cover (24) is provided on the pull handle (5) at the position of the mechanical lock (12).

9. A high-strength special vehicle door lock according to any one of claims 1 to 8, characterized in that: The lock housing (3) is provided with an induction switch (25), which is electrically connected to a dedicated vehicle light circuit, so that the vehicle light turns on when the vehicle door is opened.

Images