Hydraulic vehicle safety catch

Abstract

The utility model discloses a hydraulic type automobile safety lock catch belongs to automobile lock technical field, its structure includes battery, electric wire, hydraulic oil pump, liquid storage tank, electric valve or solenoid valve, lock catch storehouse cavity, fork type lock catch, positive pressure spring, anti -oil button and start button, fixed mounting in the door frame inside of car, the straight lock column of fork type lock catch projects in the outside of door frame, when the crash sensor on the car detects the crash information that vehicle received, passes information to the electronic control unit of car, and the electronic control unit sends the signal of touch and starts hydraulic oil pump, or presses the start button, makes the circuit connection, will make hydraulic oil pump open, makes the hydraulic oil in the liquid storage tank along the liquid outlet pipe and enter the lock catch storehouse cavity, makes the pressure of lock tailboard front part and rise to push the lock tailboard of fork type lock catch and move to the back, makes the straight lock column and lock tongue and separate contact, makes the car door open.

Description

Technical Field

[0001] This utility model relates to a hydraulic car safety latch, belonging to the field of automotive lock technology, and in particular to a car door lock latch technology that can automatically unlock when a car collides. Background Technology

[0002] Car door locks, such as Figure 5 As shown: It typically consists of a lock body and a latch. The lock body includes a lock cylinder and a bolt, and is fixedly installed on the car door. It connects to the inner and outer handles via a lever. The latch, as shown... Figure 6 As shown: Also called a lock pin or door stop, it includes a U-shaped lock pin and a lock tail plate. The U-shaped lock pin and the lock tail plate are fixedly connected, forming a gap in the middle. It is fixedly installed on the door frame of the car, opposite to the lock body. When the car door is closed, the lock tongue is locked in the gap of the lock latch, thus locking the car door.

[0003] The shortcomings of existing car door lock latch technology:

[0004] The latch is fixedly installed on the car door frame and cannot be moved. In the event of a collision or a door lock malfunction that prevents the door from being opened, neither the people inside the car nor the rescue personnel outside can open the door by moving the latch. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a hydraulic car safety latch. This device can open the car door by moving the latch when a collision occurs or the door lock malfunctions and cannot be opened.

[0006] The technical solution of this utility model to solve the above problems is: a hydraulic car safety lock, the structure of which includes a battery, wires, a hydraulic oil pump, a hydraulic oil tank, an electric valve or a solenoid valve, a lock chamber, a fork-type lock, a positive pressure spring, a reverse oil button, and a start button; the lock chamber includes a front cover plate, a rear cover plate, and a housing, the front cover plate has one or two front through holes in the middle, two to five connecting through holes on the outside of the front through holes, and two to four external through holes on the outside of the connecting through holes, the front cover plate is fixed to the door frame of the car body near the door by screws passing through the external through holes. The connection involves a screw rod passing through a connecting through-hole in the front cover plate and connecting to an internal threaded hole on the front side of the housing. A boss, 3 mm to 20 mm wide and 3 mm to 10 mm high, is provided along the inner wall of the front part of the housing. A rear through-hole is provided in the middle of the rear cover plate, and two to five connecting through-holes are provided on the outer side of the rear through-hole. The screw rod passes through the connecting through-hole in the rear cover plate and connects to the internal threaded hole on the rear side of the housing. The fork-type latch includes a straight locking pin, a U-shaped pin cap, and a locking tail plate. The straight locking pin is one or two straight cylinders, and its rear part is fixedly connected to the front part of the locking tail plate. The locking tail plate is located within the latch chamber. At the rear of the boss, the straight locking pin of the fork-type latch protrudes from the front through-hole of the front cover plate outside the door frame, opposite the lock body on the door. A U-shaped pin cap fits onto the straight locking pin. A pressure spring is installed between the rear of the lock tail plate and the rear cover plate. The outlet of the hydraulic oil pump is connected to the housing between the front cover plate and the lock tail plate at the front of the latch compartment cavity through the outlet pipe. One end of the inlet pipe is connected to the inlet of the hydraulic oil pump, and the other end is located in the hydraulic oil storage tank. An electric valve or solenoid valve is installed on the return pipe, and one end of the return pipe is connected to the housing between the front cover plate and the lock tail plate at the front of the latch compartment cavity. The other end is connected to the hydraulic oil tank. The hydraulic oil pump is connected to one electrode of the battery via a wire, and the other wire is connected to the vehicle's electronic control unit. The vehicle's collision sensor is connected to the electronic control unit via a wire. The start button and the electronic control unit are connected to the other electrode of the battery via a wire. The electric valve or solenoid valve is connected to the battery via a wire. The backflow button is connected to the electric valve or solenoid valve via a wire, and the backflow button is connected to the other electrode of the battery via another wire. The battery, hydraulic oil pump, and hydraulic oil tank are mounted on the vehicle's chassis.

[0007] Its beneficial effects are:

[0008] This utility model of a hydraulic car safety lock is installed on the door frame of a car. The straight locking pin protrudes outside the door frame. The collision sensor on the car detects the collision information of the vehicle and transmits the information to the car's electronic control unit. The electronic control unit sends a signal to start the hydraulic oil pump, or the start button is pressed to connect the circuit, which will open the hydraulic oil pump and allow hydraulic oil to enter the lock chamber cavity along the outlet pipe. The pressure at the front of the lock tail plate increases, thereby pushing the lock tail plate of the fork lock to move backward, causing the straight locking pin to retract into the lock chamber cavity. The straight locking pin disengages from the lock tongue, allowing the car door to open. Attached Figure Description

[0009] The hydraulic car safety lock of this utility model will be further described with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the hydraulic car safety lock of this utility model. The front part of the hydraulic oil tank and the lock chamber cavity has been removed from the diagram.

[0011] Figure 2 This is a schematic diagram of the front cover plate of the hydraulic car safety lock of this utility model.

[0012] Figure 3 This is a schematic diagram of the rear cover plate of the hydraulic car safety lock of this utility model.

[0013] Figure 4 This is a schematic diagram of the fork-type latch of the hydraulic car safety latch of this utility model.

[0014] Figure 5 This is a schematic diagram of an existing technology latch and car door lock.

[0015] Figure 6 This is a top-view schematic diagram of an existing locking mechanism.

[0016] In the diagram, 1 is the lock body, 2 is the bolt, 3 is the lock cylinder, 4 is the latch, 5 is the battery, 6 is the straight lock pin, 7 is the lock tail plate, 8 is the pressure spring, 9 is the housing, 10 is the front cover plate, 11 is the hydraulic pump, 12 is the hydraulic oil tank, 13 is the wire, 14 is the collision sensor, 15 is the rear cover plate, 16 is the front through hole, 17 is the door, 18 is the door frame, 19 is the connecting through hole, 20 is the rear through hole, 21 is the backfill button, 22 is the start button, 23 is the U-shaped lock pin, 24 is the U-shaped pin cap, 25 is the electronic control unit, 26 is the screw rod, 27 is the external through hole, 28 is the boss, 29 is the outlet pipe, 30 is the inlet pipe, 31 is the solenoid valve, and 32 is the return pipe. Detailed Implementation

[0017] The principle and operation of this utility model's hydraulic automotive safety lock are explained in detail below with reference to the accompanying drawings:

[0018] A hydraulic car safety latch, such as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown: Its structure includes a battery, wires, a hydraulic pump, a hydraulic oil tank, an electric valve or solenoid valve, a locking chamber, a fork-type locking mechanism, a positive pressure spring, a reverse oil button, and a start button. The locking chamber includes a front cover, a rear cover, and a housing. The front cover has one or two front through holes in the middle, two to five connecting through holes on the outer side of the front through holes, and two to four external through holes on the outer side of the connecting through holes. The front cover is fixedly connected to the door frame of the vehicle body near the door by screws passing through the external through holes. The screws pass through the connecting through holes of the front cover and are connected to the front side of the housing. The internal threaded connection is used. A boss, 3 mm to 20 mm wide and 3 mm to 10 mm high, is provided along the inner wall of the front part of the housing. A rear through hole is provided in the middle of the rear cover plate, and two to five connecting through holes are provided on the outer side of the rear through hole. The screw rod passes through the connecting through holes of the rear cover plate and connects to the internal threaded hole on the rear side of the housing. The fork-type latch includes a straight locking pin, a ring-shaped pin cap, and a locking tail plate. The straight locking pin is one or two straight cylinders, and the rear part of the straight locking pin is fixedly connected to the front part of the locking tail plate. The locking tail plate is located in the latch chamber cavity, behind the boss. The straight locking pin of the fork-type latch... A through-hole protrudes from the front cover plate onto the outside of the door frame, opposite the lock body on the door. A U-shaped post cap fits onto the straight lock post. A pressure spring is installed between the rear of the lock tail plate and the rear cover plate. The outlet of the hydraulic oil pump is connected to the housing between the front cover plate and the lock tail plate at the front of the latch chamber through an outlet pipe. One end of the inlet pipe is connected to the inlet of the hydraulic oil pump, and the other end is located in the hydraulic oil reservoir. An electric valve or solenoid valve is installed on the return pipe. One end of the return pipe is connected to the housing between the front cover plate and the lock tail plate at the front of the latch chamber, and the other end is connected to the reservoir. The hydraulic oil tank is connected to the battery via a wire, and the hydraulic oil pump is connected to one electrode of the battery via another wire. The vehicle's collision sensor is connected to the electronic control unit via a wire. The start button and electronic control unit are connected to the other electrode of the battery via a wire. The electric valve or solenoid valve is connected to the battery via a wire. The backflow button is connected to the electric valve or solenoid valve via a wire, and the backflow button is connected to the other electrode of the battery via another wire. The battery, hydraulic oil pump, and hydraulic oil tank are mounted on the vehicle's chassis.

[0019] Existing collision sensors are typically used in conjunction with airbags and are usually installed at the front or sides of a vehicle to detect information such as the intensity and direction of a collision. When a collision reaches a certain threshold, a signal is sent to the control unit.

[0020] The Electronic Control Unit (ECU) is like the brain of a car. It receives signals from sensors, analyzes and judges the signals, and if the judgment result meets the conditions for triggering a certain device, it will issue a command to that device to complete the corresponding work.

[0021] Example 1

[0022] The process of using a hydraulic car safety lock

[0023] like Figure 1 As shown: This utility model of hydraulic car safety lock is installed on the door frame of a car. The straight locking pin protrudes outside the door frame. The collision sensor on the car detects the collision information received by the vehicle. When the collision reaches the trigger condition, the information is transmitted to the car's electronic control unit. The electronic control unit sends a signal to trigger the hydraulic oil pump of this utility model of hydraulic car safety lock to start, or the start button is pressed manually to connect the circuit, which will open the hydraulic oil pump. The hydraulic oil in the reservoir enters the front part of the lock tail plate in the lock chamber through the outlet pipe. The pressure in the front of the lock tail plate increases, thereby pushing the lock tail plate of the fork lock to move backward, causing the straight locking pin to retract into the lock chamber. The straight locking pin disengages from the lock tongue, allowing the car door to open. To return to the original state, the back oil button can be pressed to open the electric valve or solenoid valve on the return pipe. The hydraulic oil in the lock chamber returns to the reservoir, and the pressure spring pushes the lock tail plate, causing the straight locking pin to return to the state of protruding outside the door frame.

[0024] Regarding the potential dangers of hydraulic oil to vehicles, firstly, the locking chamber and hydraulic oil tank are very small. The locking chamber is no larger than the volume of a size D battery, approximately 43.1 cubic centimeters, while the hydraulic oil tank is about twice the size of the locking chamber, approximately 86.2 cubic centimeters. Relative to the size of a car, the potential danger from such a small volume of hydraulic oil is negligible. There is also the risk of the outlet and return pipes bursting. These pipes are located within the interlayer of the inner and outer steel plates of the door frame. When one door is impacted, the door frame may be bent and deformed, and the outlet and return pipes may be subjected to internal and external pressure. The steel plate provides protection, and while it may bend and deform, the risk of breakage is very small. Even if the outlet and return pipes on one side break, causing hydraulic oil to leak into the door frame's interlayer, the amount of oil is minimal and will not harm the occupants. The hydraulic oil tank is isolated from the occupants by the car body's steel plate, so any damage to it will not pose a significant safety risk. Compared to the fuel in a gasoline car's tank or the battery in an electric car's battery pack, the risk is much lower. Meanwhile, the hydraulic car safety lock on the other side can operate normally, ensuring that the other door can be opened normally, thus improving vehicle safety.

[0025] This utility model of hydraulic car safety lock can be used with existing mechanical or electronic door locks, enabling ordinary door locks to open the car door upon collision. It can also be used with car door locks that have a collision self-unlocking function to enhance the reliability of the collision self-unlocking door lock.

[0026] The circuit components described in the instruction manual for this hydraulic car safety lock have been simplified. For example, voltage conversion, relay isolation, and secondary control circuits are not mentioned as they are all existing technologies. Detailing them all in detail would be too cumbersome. This description is only used to illustrate the principle and logical relationship of the circuit involved in this utility model.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hydraulic car safety latch, an improvement on the latch in car locks, mainly composed of a fork-type latch, a latch chamber, and a battery, characterized in that: Its structure includes a battery, wires, a hydraulic pump, a hydraulic oil tank, an electric valve or solenoid valve, a locking chamber, a fork-type locking mechanism, a positive pressure spring, a reverse oil button, and a start button. The locking chamber includes a front cover, a rear cover, and a housing. The front cover has one or two front through holes in the middle, two to five connecting through holes on the outer side of the front through holes, and two to four external through holes on the outer side of the connecting through holes. The front cover is fixedly connected to the door frame of the vehicle body near the door by screws passing through the external through holes. The screws pass through the connecting through holes of the front cover and are connected to the inner side of the front of the housing. The fork-type latch uses a threaded connection. The front of the housing has a boss, 3mm to 20mm wide and 3mm to 10mm high, extending inwards along the inner wall. A rear through-hole is located in the center of the rear cover, with two to five connecting through-holes on the outer side. A screw rod passes through the connecting through-holes in the rear cover and connects to the internal threaded hole on the rear side of the housing. The fork-type latch includes a straight locking pin, a U-shaped pin cap, and a tail plate. The straight locking pin is one or two straight cylinders, with its rear fixedly connected to the front of the tail plate. The tail plate is located within the latch chamber, behind the boss. The straight locking pin of the fork-type latch passes through... The front through-hole of the front cover protrudes outside the door frame, opposite the lock body on the door. The circular post cap fits onto the straight lock post. A pressure spring is installed between the rear of the lock tail plate and the rear cover plate. The outlet of the hydraulic oil pump is connected to the housing between the front cover plate and the lock tail plate at the front of the latch compartment cavity through the outlet pipe. One end of the inlet pipe is connected to the inlet of the hydraulic oil pump, and the other end is located in the hydraulic oil storage tank. An electric valve or solenoid valve is installed on the return pipe. One end of the return pipe is connected to the housing between the front cover plate and the lock tail plate at the front of the latch compartment cavity, and the other end is connected to the hydraulic oil storage tank. The hydraulic oil tank is connected to the battery via a wire, and the hydraulic oil pump is connected to one electrode of the battery via another wire. The vehicle's collision sensor is connected to the electronic control unit via a wire. The start button and electronic control unit are connected to the other electrode of the battery via a wire. The electric valve or solenoid valve is connected to the battery via a wire. The backflow button is connected to the electric valve or solenoid valve via a wire, and the backflow button is connected to the other electrode of the battery via another wire. The battery, hydraulic oil pump, and hydraulic oil tank are mounted on the vehicle's chassis.

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