Truck cab rollover rearward fall protection device

Abstract

The utility model discloses a truck cab overturns and prevents falling back protection device, including the mounting panel, the one side outer wall on mounting panel rotatory installation has the unlocking handle, the one side of unlocking handle and the one end of brake line butt joint, the other end of brake line and the lock tongue, the lock tongue welding sleeve pipe one side outer wall, the bottom of sleeve pipe installs inside the support, the top of sleeve pipe is provided with the butt joint peg, the wing surface of vehicle girder is fixed through the support to sleeve pipe, the top of sleeve pipe is connected with cab through butt joint peg, the mounting panel is installed in the wing surface of vehicle girder through the mounting hole of its predetermine, the utility model, telescopic link stretches forward in the process of cab forward overturning, when cab overturns to the predetermine position, telescopic link will enter the locking state in the inside sleeve pipe under the action of lock tongue, prevents cab falling back, to the maintenance personnel and plays a kind of auxiliary protection function, until through manual dialing unlocking handle, removes locking.

Description

Technical Field

[0001] This utility model relates to the field of protection device technology, specifically a protective device to prevent a truck cab from falling back after it has overturned. Background Technology

[0002] Currently, most truck cabs on the market are equipped with a cab tilting mechanism. This mechanism allows drivers or mechanics to easily tilt the cab, exposing components hidden underneath, thus simplifying maintenance and cleaning processes and shortening emergency repair time. However, when drivers or mechanics open the tilting mechanism and tilt the cab forward to prepare for maintenance, there is often a risk of the cab falling back down. Even with the single safety device currently used—mostly hydraulic cylinders supporting the cab—there are still safety hazards such as hydraulic cylinder failure or damage. In the event of an accident, this could cause serious personal injury to the driver or mechanic.

[0003] To prevent risks arising from the failure of a single support rod protection device after the cab overturns, an auxiliary protection device to prevent the truck cab from falling back after overturning has been designed. Utility Model Content

[0004] The purpose of this utility model is to provide a protective device to prevent the truck cab from falling back after it overturns, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device to prevent a truck cab from falling back after tipping over, comprising a mounting plate, wherein an unlocking handle is rotatably mounted on one side of the outer wall of the mounting plate, and one side of the unlocking handle is connected to one end of the brake cable.

[0006] The other end of the brake cable is connected to the locking tongue. The locking tongue is welded to the outer wall of one side of the sleeve. The bottom of the sleeve is installed inside the support. The top of the sleeve is provided with a connecting bolt. The sleeve is fixed to the wing surface of the vehicle beam by the support. The upper end of the sleeve is connected to the cab by the connecting bolt. The mounting plate is installed on the wing surface of the vehicle beam through the preset mounting holes thereon.

[0007] Preferably, a connecting block is movably and through-mounted on one side of the outer wall of the unlocking handle via a connecting bolt, and one side of the connecting block is connected to the tightening line inside the brake line.

[0008] Preferably, a limiting strip is integrally installed on the outer wall of the top of the mounting plate, and one side of the limiting strip is in contact with the outer wall of the unlocking handle when it is perpendicular to the handle.

[0009] Preferably, a connecting block is detachably fixedly installed on the surface of the latch, one side of the connecting block is connected to one end of the brake line, the bottom of one end of the latch is rotatably installed inside the positioning seat through a rotating shaft, and the latch is fixedly installed on the outer wall of the sleeve through the positioning seat.

[0010] Preferably, a telescopic rod is inserted into the sleeve when it moves inside, and a connecting bolt is installed through one side of the telescopic rod. A rectangular opening communicating with the inner cavity is opened on one side of the outer wall of the top of the sleeve.

[0011] Preferably, one end of the locking tongue passes through the rectangular opening and presses against the outer wall of the telescopic rod inside the sleeve, and the brake line is fixedly installed in the mounting plate and the positioning seat recess near the outer walls of both ends, respectively.

[0012] Preferably, a rotating rod is horizontally fixedly installed in the mounting opening on one side of the support, and the bottom of the sleeve is movably sleeved on the outer wall of the rotating rod.

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

[0014] The anti-fall protection device for the cab of this container truck has a telescopic rod that extends forward as the cab flips. When the cab flips to the preset position, the telescopic rod will enter a locked state inside the sleeve under the action of the locking tongue, preventing the cab from falling back. This provides auxiliary protection for maintenance personnel until the lock is released by manually turning the unlocking handle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the unlocking handle of this utility model;

[0017] Figure 3 This is a side view of the sleeve connection of this utility model;

[0018] Figure 4 This is a top view schematic diagram of the sleeve connection structure of this utility model.

[0019] In the diagram: 1. Mounting plate; 11. Limiting strip; 2. Unlocking handle; 21. Connecting block; 3. Brake line; 4. Locking tongue; 41. Connecting block; 42. Positioning seat; 5. Sleeve; 51. Telescopic rod; 52. Rectangular opening; 6. Support; 61. Rotating rod; 7. Connecting bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a protective device to prevent the cab of a truck from falling back after it overturns, including a mounting plate 1, an unlocking handle 2 is rotatably mounted on one side of the outer wall of the mounting plate 1, and one side of the unlocking handle 2 is connected to one end of the brake line 3.

[0022] The other end of the brake line 3 is connected to the locking tongue 4. The locking tongue 4 is welded to the outer wall of the sleeve 5 on one side. The bottom of the sleeve 5 is installed inside the support 6. The top of the sleeve 5 is provided with a connecting bolt 7. The sleeve 5 is fixed to the wing surface of the vehicle beam through the support 6. The upper end of the sleeve 5 is connected to the cab through the connecting bolt 7. The mounting plate 1 is installed on the wing surface of the vehicle beam through the pre-set mounting holes on it.

[0023] Preferably, a connecting block 21 is movably and continuously installed on one side of the outer wall of the unlocking handle 2 via a connecting bolt, and one side of the connecting block 21 is connected to the tightening line inside the brake line 3.

[0024] A limiting strip 11 is integrally installed on the outer wall of the top of the mounting plate 1. One side of the limiting strip 11 is in contact with the outer wall of the unlocking handle 2 when it is perpendicular. A connecting block 41 is detachably fixedly installed on the surface of the latch 4. One side of the connecting block 41 is connected to one end of the brake line 3. The bottom of one end of the latch 4 is rotatably installed inside the positioning seat 42 via a pivot. The latch 4 is fixedly installed on the outer wall of the sleeve 5 via the positioning seat 42.

[0025] When the sleeve 5 moves, a telescopic rod 51 is inserted inside. A connecting bolt 7 is installed through one side of the telescopic rod 51. A rectangular opening 52 is opened on the outer wall of one side of the top of the sleeve 5, connecting to its inner cavity. One end of the locking tongue 4 passes through the rectangular opening 52 and presses against the outer wall of the telescopic rod 51 inside the sleeve 5. The brake line 3 is fixedly installed in the recesses of the mounting plate 1 and the positioning seat 42 near its two ends. A rotating rod 61 is horizontally fixedly installed in the mounting opening on one side of the support 6. The bottom of the sleeve 5 is movably sleeved on the outer wall of the rotating rod 61.

[0026] Pull the unlocking handle 2 away from the limit bar 11. This will cause the unlocking handle 2 to pull the steel wire inside the brake cable 3 through the docking block 21. The steel wire inside the brake cable 3, under tension, will cause the locking tongue 4 to flip to one side, thereby freeing one end of the locking tongue 4 from the pressure on the telescopic rod 51.

[0027] In use, the support 6 and mounting plate 1 are pre-installed on the flange of the vehicle beam. Then, the top of the telescopic rod 51 is connected to the docking part at the bottom of the cab via the docking bolt 7. When the cab tilts forward, the telescopic rod 51 moves outward from inside the sleeve 5, while the bottom of the sleeve 5 rotates adaptively within the mounting opening of the support 6 via the rotating rod 61. After the truck cab tilts, the locking tongue 4, under the action of the brake line 3, firmly presses against the outer wall of the telescopic rod 51, thus fixing the telescopic rod 51 inside the sleeve 5. In this way, the sleeve 5 and the telescopic rod 51 are supported between the cab and the beam.

[0028] Working principle: When using the anti-fall protection device after the truck cab is overturned, the telescopic rod 51 extends forward as the cab is overturned. When the cab is overturned to the preset position, the telescopic rod 51 will enter the locking state inside the sleeve 5 under the action of the locking tongue 4, preventing the cab from falling back and playing an auxiliary protection role for maintenance personnel. The locking is released by manually moving the unlocking handle 2, at which point the cab can be overturned and reset.

[0029] The anti-fall-back device provided in this technical solution is an additional safety device added when used in conjunction with the original hydraulic cylinder support structure of the truck.

[0030] This is the feature of the anti-fall protection device after the truck cab overturns. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective device to prevent a truck cab from falling back after tipping over, comprising a mounting plate (1), characterized in that, An unlocking handle (2) is rotatably mounted on one side of the outer wall of the mounting plate (1), and one side of the unlocking handle (2) is connected to one end of the brake line (3). The other end of the brake line (3) is connected to the locking tongue (4). The locking tongue (4) is welded to the outer wall of one side of the sleeve (5). The bottom of the sleeve (5) is installed inside the support (6). The top of the sleeve (5) is provided with a connecting bolt (7). The sleeve (5) is fixed to the wing surface of the vehicle beam through the support (6). The upper end of the sleeve (5) is connected to the cab through the connecting bolt (7). The mounting plate (1) is installed on the wing surface of the vehicle beam through the preset mounting holes thereon.

2. The anti-fall protection device for a truck cab after tipping over as described in claim 1, characterized in that: A docking block (21) is movably and through-mounted on one side of the outer wall of the unlocking handle (2) via a connecting bolt. One side of the docking block (21) is connected to the tightening line inside the brake line (3).

3. The anti-fall protection device for a truck cab after tipping over as described in claim 1, characterized in that: A limiting strip (11) is integrally installed on the outer wall of the top of the mounting plate (1). One side of the limiting strip (11) is in contact with the outer wall of the unlocking handle (2) when it is perpendicular to the other side.

4. The anti-fall protection device for a truck cab after tipping over as described in claim 1, characterized in that: A connecting block (41) is detachably fixedly installed on the surface of the latch (4). One side of the connecting block (41) is connected to one end of the brake line (3). The bottom of one end of the latch (4) is rotatably installed inside the positioning seat (42) through a rotating shaft. The latch (4) is fixedly installed on the outer wall of the sleeve (5) through the positioning seat (42).

5. A truck cab rollover protection device according to claim 1, characterized in that: When the sleeve (5) moves inside, a telescopic rod (51) is inserted. A connecting bolt (7) is installed through one side of the telescopic rod (51). A rectangular opening (52) communicating with the inner cavity is opened on one side of the outer wall of the top of the sleeve (5).

6. The anti-fall protection device for a truck cab after tipping over according to claim 1, characterized in that: One end of the locking tongue (4) passes through the rectangular opening (52) and presses against the outer wall of the telescopic rod (51) inside the sleeve (5). The brake line (3) is fixedly installed in the recesses of the mounting plate (1) and the positioning seat (42) near the outer walls of both ends.

7. The anti-fall protection device for a truck cab after tipping over according to claim 1, characterized in that: A rotating rod (61) is horizontally fixedly installed in the mounting port on one side of the support (6), and the bottom of the sleeve (5) is movably sleeved on the outer wall of the rotating rod (61).

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