An escape mechanism for construction machinery vehicles

Abstract

This utility model discloses an escape mechanism for an engineering machinery vehicle, including a cab body and a rear window glass installed on the right side of the cab body. Two gas springs are installed between the rear window glass and the cab body to push the rear window glass to tilt at an angle. A rear window lock cylinder is fixedly connected to the rightmost side of the upper outer wall of the rear window glass, and a rear window latch is fixedly connected to the right inner wall of the cab body to connect with the rear window lock cylinder and restrict the position of the rear window glass. By installing a fixed rod, a window breaker, and a movable head, when the rear window lock cylinder and gas springs are damaged, the movable head can be rotated so that the sharp part of the window breaker faces the rear window glass, and the fixed rod is pushed so that the window breaker smashes into the rear window glass. The driver or passengers can quickly operate the device to break the rear window glass, providing an emergency window-breaking method for the people inside the vehicle and ensuring that it can reliably play a role in critical moments.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering machinery vehicle body, specifically relating to an escape mechanism for engineering machinery vehicles. Background Technology

[0002] Currently, the rear windows of construction machinery cabs are glued to the cab's sheet metal. To cope with different working environments, construction machinery cabs need more comprehensive and safer functions. With traditional glued glass, in dangerous situations, the operator could be trapped inside the cab and unable to escape independently.

[0003] However, if the rear window is secured with a latch, and the latch or gas spring is damaged, escape through the rear window will be impossible. Utility Model Content

[0004] The purpose of this utility model is to provide an escape mechanism for engineering machinery vehicles, so as to solve the problem mentioned in the background art that if the latch or gas spring is damaged, it will be impossible to escape through the rear window.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an escape mechanism for an engineering machinery vehicle, comprising a cab body and a rear window glass installed on the right side of the cab body; Two gas springs are installed between the rear window glass and the cab body to push the rear window glass to tilt at an angle; The rear window lock cylinder is fixedly connected to the rightmost side of the upper outer wall of the rear window glass. The right inner wall of the cab body is fixedly connected to a rear window latch, which connects with the rear window lock cylinder to restrict the position of the rear window glass. A fixed rod is provided on the upper side of the inner wall of the right end of the cab body. A movable head is provided on the lower outer wall of the fixed rod. Window breakers are fixedly connected to the outer walls of both the front and rear ends of the movable head.

[0006] Preferably, a fixing block is provided on the inner wall of the right end of the cab body, and a positioning rod is provided between the fixing rod and the fixing block to limit the position of the center of rotation of the fixing rod.

[0007] Preferably, a fixing spring is fixedly connected between the fixing rod and the fixing block to provide power for the fixing rod to push the window-breaking head.

[0008] Preferably, the upper outer wall of the movable head is fixedly connected to a limiting shaft inserted into the fixed rod to limit the rotation angle of the movable head.

[0009] Preferably, the outer wall of the right end of the fixing block is provided with a limiting groove that opens to the right, and the inner wall of the right end of the cab body is fixedly connected with a fixing strip to limit the position of the fixing block.

[0010] Preferably, the lower outer wall of the fixing block is fixedly connected to a limit frame near both the front and rear sides to limit the position of the window breaking head.

[0011] Preferably, two rear window hinges are provided between the rear window glass and the cab body to limit the position of the rotation center of the rear window glass.

[0012] Preferably, a sealing strip is provided inside the right outer wall of the cab body.

[0013] Compared with the prior art, this utility model provides an escape mechanism for engineering machinery vehicles, which has the following beneficial effects: By installing a fixed rod, a window breaker head, and a movable head, when the rear window lock cylinder and gas spring are damaged, the movable head can be rotated so that the sharp part of the window breaker head faces the rear window glass. Then, the fixed rod is pushed so that the window breaker head smashes into the rear window glass. The driver or passengers can quickly operate the device to break the rear window glass, providing an emergency window-breaking method for the people inside the vehicle and ensuring that it can reliably play a role in critical moments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an escape mechanism for an engineering machinery vehicle according to the present invention.

[0015] Figure 2 This is a partial side view structural diagram of the cab body of this utility model.

[0016] Figure 3 This is a partial structural schematic diagram of the side cross-section of the fixing block area of ​​this utility model.

[0017] Figure 4 This is a partial structural schematic diagram of the front cross-section of the fixing block area of ​​this utility model.

[0018] In the diagram: 1. Rear window glass; 2. Rear window lock cylinder; 3. Cab body; 4. Gas spring; 5. Sealing strip; 6. Rear window hinge; 7. Rear window latch; 8. Fixing strip; 9. Fixing block; 10. Fixing rod; 11. Window breaker; 12. Movable head; 13. Limiting groove; 14. Limiting bracket; 15. Positioning rod; 16. Limiting shaft; 17. Fixing spring. Detailed Implementation

[0019] 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.

[0020] This utility model provides, for example Figure 1-4 The escape mechanism of an engineering machinery vehicle shown includes a cab body 3 and a rear window glass 1 installed on the right side of the cab body 3; Two gas springs 4 are installed between the rear window glass 1 and the cab body 3 to push the rear window glass 1 to tilt at an angle; The rear window lock cylinder 2 is fixedly connected to the rightmost side of the upper outer wall of the rear window glass 1; A rear window latch 7 is fixedly connected to the inner wall of the right end of the cab body 3 to connect with the rear window lock cylinder 2 and restrict the position of the rear window glass 1. The rear window hinge 6, rear window gas spring 4, and rear window lock are assembled onto the rear window glass 1 by bolts. The rear window glass 1 is then fixed onto the cab body 3 by the rear window hinge 6. The gap between the rear window glass 1 and the cab body is adjusted, and the bolts of the gas spring 4 and the rear window latch 7 are tightened. When escape is needed, the rear window lock cylinder 2 is operated with a key to separate the rear window lock cylinder 2 from the rear window latch 7. Due to the action of the high-pressure gas inside, the gas spring 4 begins to push the rear window glass 1. The rear window glass 1 tilts upward around the connection point with the cab body 3 and gradually opens to a suitable angle. After the rear window glass 1 is opened, escape can be made through the rear window glass 1. A fixed rod 10 is installed on the upper side of the inner wall of the right end of the cab body 3. A movable head 12 is installed on the lower outer wall of the fixed rod 10. A window-breaking head 11 is fixedly connected to the outer walls of both the front and rear ends of the movable head 12. The operator holds the fixed rod 10 with both hands and pushes the fixed rod 10 towards the rear window glass 1 with the connection point between the fixed rod 10 and the cab body 3 as the fulcrum. The sharp part of the window-breaking head 11 hits the rear window glass 1 and applies impact force to the glass, causing the rear window glass 1 to break. The operator can escape to a safe area through the hole formed by the break in the rear window glass 1.

[0021] As shown in the figure, a fixing block 9 is provided on the inner wall of the right end of the cab body 3. A positioning rod 15 is provided between the fixing rod 10 and the fixing block 9 to limit the position of the rotation center of the fixing rod 10. A fixing spring 17 is fixedly connected between the fixing rod 10 and the fixing block 9 to provide power for the fixing rod 10 to push the window breaker head 11.

[0022] When using the window breaker 11, first pull out the fixing rod 10. The fixing rod 10 will swing left and right under the restriction of the positioning rod 15. When pulling the fixing rod 10 to the left, the fixing spring 17 will be stretched simultaneously. Then rotate the movable head 12 so that the sharp end of the window breaker 11 is aligned with the rear window glass 1. Then release the fixing rod 10 and the fixing spring 17 will retract. The impact force of the retraction will cause the window breaker 11 to shatter the rear window glass 1.

[0023] As shown in the figure, a limiting shaft 16 is fixedly connected to the upper outer wall of the movable head 12, which is inserted into the fixed rod 10, to limit the rotation angle of the movable head 12.

[0024] When the movable head 12 rotates under external force, it can drive the window breaking head 11 to rotate synchronously, thereby adjusting the orientation of the window breaking head 11.

[0025] like Figure 4 As shown, a limiting groove 13 with a right-opening opening is provided on the outer wall of the right end of the fixing block 9. A fixing strip 8 is fixedly connected to the inner wall of the right end of the cab body 3 to limit the position of the fixing block 9. Limiting brackets 14 are fixedly connected to the lower outer wall of the fixing block 9 and near the front and rear sides to limit the position of the window breaker head 11.

[0026] When using the window breaker 11, the fixing block 9 can also be slid to the left and right sides. The fixing block 9 can be removed from the fixing strip 8. At this time, the fixing block 9 can be held by hand and the rear window glass 1 can be broken manually by using the window breaker 11. When the fixing block 9 is reset, the limiting groove 13 opened on the fixing block 9 can be aligned with one side of the fixing strip 8 and then slid so that the limiting groove 13 and the fixing strip 8 are engaged, which can restrict the position of the fixing block 9.

[0027] like Figure 1 As shown, two rear window hinges 6 are provided between the rear window glass 1 and the cab body 3 to limit the position of the rotation center of the rear window glass 1. A sealing strip 5 is provided inside the right outer wall of the cab body 3.

[0028] Each rear window hinge 6 connects the rear window glass 1 and the cab body 3 respectively, precisely limiting the position of the rotation center of the rear window glass 1. This allows the rear window glass 1 to tilt stably around a fixed center under the push of the gas spring 4, ensuring the accuracy and stability of the opening and closing of the rear window. When the rear window glass 1 is closed and locked, the sealing strip 5 is elastically deformed by the pressure of the rear window glass 1, filling the gap between the rear window glass 1 and the cab body 3, preventing external dust, rain, noise and other external factors from entering the cab, providing a comfortable and quiet driving environment for the driver and passengers.

[0029] The implementation principle of this embodiment is as follows: The rear window hinge 6, rear window gas spring 4, and rear window lock are assembled onto the rear window glass 1 using bolts. The rear window hinge 6 then fixes the assembled rear window glass 1 to the cab body 3. The gap between the rear window glass 1 and the cab body is adjusted, and the bolts of the gas spring 4 and the rear window latch 7 are tightened. When escape is required, the key is used to operate the rear window lock cylinder 2, causing the rear window lock cylinder 2 to separate from the rear window latch 7. Due to the high-pressure gas inside, the gas spring 4 begins to push the rear window glass 1. By tilting upwards around the connection point with the cab body 3 and gradually opening to a suitable angle, the rear window 1 can be opened for escape. The operator holds the fixing rod 10 with both hands and uses the connection point between the fixing rod 10 and the cab body 3 as a fulcrum to push the fixing rod 10 towards the rear window 1. The sharp part of the window breaker 11 hits the rear window 1, applying impact force to the glass and causing it to crack. The operator can then escape to a safe area through the opening formed by the crack in the rear window 1.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An escape mechanism for an engineering machinery vehicle, comprising a cab body (3) and a rear window glass (1) installed on the right side of the cab body (3); Two gas springs (4) are installed between the rear window glass (1) and the cab body (3) to push the rear window glass (1) to tilt at an angle; The rear window lock cylinder (2) is fixedly connected to the rightmost side of the upper outer wall of the rear window glass (1); The right end inner wall of the cab body (3) is fixedly connected to a rear window latch (7) to connect with the rear window lock cylinder (2) and restrict the position of the rear window glass (1); characterized in that A fixed rod (10) is provided on the upper side of the inner wall of the right end of the cab body (3). A movable head (12) is provided on the lower outer wall of the fixed rod (10). A window breaker (11) is fixedly connected to the outer walls of both the front and rear ends of the movable head (12).

2. A vehicle escape mechanism for a construction machine according to claim 1, characterized in that: A fixing block (9) is provided on the inner wall of the right end of the cab body (3), and a positioning rod (15) is provided between the fixing rod (10) and the fixing block (9) to limit the position of the rotation center of the fixing rod (10).

3. An engineered machine vehicle escape mechanism as claimed in claim 1, characterized in that: A fixing spring (17) is fixedly connected between the fixing rod (10) and the fixing block (9) to provide power for the fixing rod (10) to push the window breaker head (11).

4. The escape mechanism for an engineering machinery vehicle according to claim 1, characterized in that: The upper outer wall of the movable head (12) is fixedly connected to a limiting shaft (16) inserted into the fixed rod (10) to limit the rotation angle of the movable head (12).

5. An engineered machine vehicle escape mechanism as claimed in claim 2, characterized by: The outer wall of the right end of the fixing block (9) is provided with a limiting groove (13) that opens to the right, and the inner wall of the right end of the cab body (3) is fixedly connected with a fixing strip (8) to limit the position of the fixing block (9).

6. An engineered machine vehicle escape mechanism as claimed in claim 2, characterized by: Limiting frames (14) are fixedly connected to the lower outer wall of the fixing block (9) and close to the front and rear sides respectively, so as to limit the position of the window breaking head (11).

7. A work machine escape mechanism according to claim 1, characterized in that: Two rear window hinges (6) are provided between the rear window glass (1) and the cab body (3) to limit the position of the rotation center of the rear window glass (1).

8. A work machine escape mechanism according to claim 1, characterized in that: A sealing strip (5) is provided inside the outer wall of the right end of the cab body (3).

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