Door opening brake protection device of explosion-proof diesel engine trackless rubber-tyred vehicle

Abstract

The utility model discloses an explosion-proof diesel engine trackless rubber-tyred vehicle door opening brake protection device which comprises a door opening control valve, a parking brake, a booster pump, a control valve and a safety control device, and the door opening control valve is connected with the safety control device, the booster pump, the control valve and the parking brake through a brake pressure pipeline. Through the fixing mechanism with unique design, the opening process of the cover is greatly simplified, an operator only needs to pull the sliding block upwards to enable the first clamping block to be separated from the first clamping groove, then pulls the side plate outwards to enable the second clamping block to be separated from the second clamping groove, and then the cover can be taken down; and then internal parts of the door opening control valve can be maintained, a wide operation space is provided for maintenance and overhaul of the internal parts such as the door position feeler lever, the clamping ring and the control valve element, and compared with the prior art, the maintenance time is remarkably shortened, the labor cost is reduced, and the equipment maintenance efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the safety equipment technical field of explosion -proof diesel engine trackless rubber -tyred vehicle, concretely is a kind of explosion -proof diesel engine trackless rubber -tyred vehicle door opening brake protection device. BACKGROUND

[0002] Explosion -proof diesel engine trackless rubber -tyred vehicle is widely used in underground operation environment such as coal mine, and it is mainly used for transporting personnel and material.In the process of vehicle driving, if the door is accidentally opened, it can cause great threat to the safety of people in the vehicle.

[0003] Through search, the patent with application No.CN200910033012.3 discloses a kind of mine explosion -proof diesel engine trackless rubber -tyred vehicle door opening brake protection device, including safety control device, force pump, control valve and parking brake, it is characterized by further comprising: door opening control valve, door opening control valve is connected with safety control device, force pump, control valve and parking brake by brake pressure line.The door opening control valve is composed of door position touch rod, snap ring, control valve core, cover, shell, pressing plate, spring, reset rod.

[0004] But in actual use, the above-mentioned patent has the following defects: it is not convenient to open the cover on the door opening control valve, and then it is not convenient to maintain the internal parts of the door opening control valve, therefore, we propose a kind of explosion -proof diesel engine trackless rubber -tyred vehicle door opening brake protection device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of explosion -proof diesel engine trackless rubber -tyred vehicle door opening brake protection device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of explosion -proof diesel engine trackless rubber -tyred vehicle door opening brake protection device, including door opening control valve, parking brake, force pump, control valve and safety control device, the door opening control valve is connected with safety control device, force pump, control valve and parking brake by brake pressure line, the door opening control valve includes door position touch rod, snap ring, control valve core, cover, shell, pressing plate, spring, reset rod and fixed mechanism, the top of shell is movably connected with cover, the cover is connected with shell by fixed mechanism.

[0007] Further, the fixed mechanism includes movable slot, side plate, movable rod, stop block, lifting groove, slide column, sliding block, sleeve spring, first clamping block, support plate, first clamping slot, second clamping slot and second clamping block, the top left and right sides of cover are all provided with movable slot, the left and right sides of cover are movably connected with side plate.

[0008] Further, the side plate is movably contacted between shell, and the side of side plate close to cover is fixedly connected with two movable rods.

[0009] Further, one end of the movable rod close to the cover penetrates the cover and the movable slot in sequence and extends to the inside of the movable slot, the movable rod is movably connected with the cover, the same stop block is fixedly connected to the end of the two movable rods away from the side plate, and the stop block is movably connected with the movable slot.

[0010] Further, the side plate is provided with a lifting slot on the side away from the cover, two sliding columns are fixedly connected to the bottom of the inner wall of the lifting slot, a sliding block is movably connected to the bottom of the inner wall of the lifting slot, the sliding column penetrates the sliding block and extends to the outside of the sliding block, the sliding column is slidably connected with the sliding block, the sliding block penetrates the lifting slot and extends to the outside of the lifting slot on the side away from the cover, a first clamping block is fixedly connected to the bottom of the sliding block, and support plates are fixedly connected to the upper parts of the left and right sides of the shell.

[0011] Further, the support plate is provided with a first clamping slot in the top, the first clamping block penetrates the lifting slot, the side plate and the first clamping slot in sequence and extends to the inside of the first clamping slot, the first clamping block is movably connected with the side plate, the first clamping block is movably clamped with the first clamping slot, and a sleeve spring is sleeved on the surface of the sliding column.

[0012] Further, the bottom of the sleeve spring abuts against the top of the sliding block, the top of the sleeve spring abuts against the top of the inner wall of the lifting slot, the left and right sides of the shell are provided with second clamping slots in the top, second clamping blocks are movably clamped in the second clamping slots, and the second clamping blocks are fixedly connected with the side plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a unique design fixed mechanism greatly simplifies the opening process of the cover, when maintaining, the operator only needs to pull the sliding block upwards, drives the first clamping block to move upwards simultaneously, extrudes the sleeve spring, makes the first clamping block separate from the first clamping slot, then pulls the side plate to the outside, makes the second clamping block separate from the second clamping slot, then can take down the cover, then can maintain the internal parts of the door control valve, provides the broad operating space for the maintenance of the door position touch rod, snap ring, control valve core and other internal parts, compared with prior art, the maintenance time is shortened obviously, the manpower cost is reduced, and the equipment maintenance efficiency is improved greatly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view structure schematic diagram of the utility model;

[0016] Figure 2 It is the safety parking brake principle diagram of the utility model;

[0017] Figure 3The utility model discloses a cover and shell assembly structure schematic view.

[0018] Figure 4 The utility model discloses a support plate structure schematic view.

[0019] Figure 5 The utility model discloses a side plate structure schematic view.

[0020] In the drawing: 1, door position touch rod;2, snap ring;3, control valve core;4, cover;5, shell;6, pressing plate;7, spring;8, reset rod;9, fixed mechanism;901, movable slot;902, side plate;903, movable rod;904, stopper;905, lifting groove;906, slide column;907, sliding block;908, sleeve spring;909, first clamping block;910, support plate;911, first clamping slot;912, second clamping slot;913, second clamping block;;10, door opening control valve;11, parking brake;12, force pump;13, control valve;14, safety control device. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0023] Please refer to Figures 1-5The application discloses a door opening brake protection device for an explosion-proof diesel engine trackless rubber-tyred vehicle.

[0024] The door opening control valve 10 comprises a door position touch rod 1, a clamping ring 2, a control valve core 3, a cover 4, a shell 5, a pressing plate 6, a spring 7, a reset rod 8 and a fixing mechanism 9.

[0025] The fixing mechanism 9 comprises an active groove 901, a side plate 902, an active rod 903, a stop block 904, a lifting groove 905, a sliding column 906, a sliding block 907, a spring sleeve 908, a first clamping block 909, a supporting plate 910, a first clamping groove 911, a second clamping groove 912 and a second clamping block 913.

[0026] The side plate 902 is in active contact with the shell 5.

[0027] The active rod 903 is in active connection with the cover 4.

[0028] The side plate 902 is provided with the lifting groove 905 on the side away from the cover 4.

[0029] The slider 907 extends through the lifting groove 905 and out of the lifting groove 905 on the side away from the cover 4. The bottom of the slider 907 is fixedly connected to the first locking block 909. Support plates 910 are fixedly connected to the upper left and right sides of the housing 5.

[0030] The support plate 910 has a first slot 911 at the top. The bottom of the first block 909 passes through the lifting groove 905, the side plate 902 and the first slot 911 in sequence and extends into the interior of the first slot 911. The first block 909 is movably connected to the side plate 902 and is movably engaged with the first slot 911. A spring 908 is sleeved above the surface of the sliding column 906. The bottom of the spring 908 abuts against the top of the slider 907 and the top of the spring 908 abuts against the top of the inner wall of the lifting groove 905. The top of both sides of the housing 5 has a second slot 912 at the top. A second block 913 is movably engaged inside the second slot 912 and is fixedly connected to the side plate 902.

[0031] Under normal use, after the vehicle stops, the driver should engage the handbrake, which will activate the parking brake 11, enabling the vehicle to stop. If the driver forgets to engage the handbrake, simply opening the door and exiting the vehicle will cause the door position contact rod 1 in the door opening control valve 10 to spring out under the action of spring 7, pushing the pressure plate 6 and actuating the control valve core 3. This will cause the safety control device 14, the booster pump 12, and the control valve 13 to work together to cut off the pressure to the axle to release the parking brake 11. The parking brake 11 will then automatically reset under the action of spring 7, achieving the parking brake function and preventing the vehicle from rolling away. When the driver gets back into the vehicle and closes the door, the door position contact rod 1, along with the pressure plate 6, will be pushed to the right by the door, manually resetting the reset rod 8. This will actuate the control valve core 3, connecting the release pressure to the parking brake 11, releasing the parking brake on the axle, and allowing the vehicle to drive normally. For vehicles with a passenger seat, an additional door opening control valve 10 can be installed on the door, similarly enabling the vehicle to stop with the door open.

[0032] In practical applications: When it is necessary to open the cover 4 to maintain the internal components of the door opening control valve 10, simply pull the slider 907 upward, which will cause the first locking block 909 to move upward, while squeezing the sleeve spring 908, thereby causing the first locking block 909 to disengage from the first locking groove 911. Then, pull the side plate 902 outward, which will cause the second locking block 913 to disengage from the second locking groove 912. Then the cover 4 can be removed, and the internal components of the door opening control valve 10 can be maintained.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A door-opening brake protection device for an explosion-proof diesel engine trackless rubber-tired vehicle, comprising a door-opening control valve (10), a parking brake (11), a booster pump (12), a control valve (13), and a safety control device (14), characterized in that: The door opening control valve (10) is connected to the safety control device (14), booster pump (12), control valve (13) and parking brake (11) through the brake pressure pipeline. The door opening control valve (10) includes a door position contact rod (1), a retaining ring (2), a control valve core (3), a cover (4), a housing (5), a pressure plate (6), a spring (7), a reset rod (8) and a fixing mechanism (9). The top of the housing (5) is movably connected to the cover (4), and the cover (4) and the housing (5) are connected by the fixing mechanism (9).

2. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 1, characterized in that: The fixing mechanism (9) includes a movable groove (901), a side plate (902), a movable rod (903), a stop block (904), a lifting groove (905), a sliding column (906), a slider (907), a sleeve spring (908), a first locking block (909), a support plate (910), a first locking groove (911), a second locking groove (912), and a second locking block (913). The top left and right sides of the cover (4) are provided with movable grooves (901), and the left and right sides of the cover (4) are movably connected with side plates (902).

3. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 2, characterized in that: The side plate (902) is in movable contact with the housing (5), and two movable rods (903) are fixedly connected to the side of the side plate (902) near the cover (4).

4. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 3, characterized in that: The end of the movable rod (903) near the cover (4) passes through the cover (4) and the movable groove (901) in sequence and extends into the interior of the movable groove (901). The movable rod (903) is movably connected to the cover (4). The ends of the two movable rods (903) away from the side plate (902) are fixedly connected to the same stop block (904). The stop block (904) is movably connected to the movable groove (901).

5. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 4, characterized in that: The side plate (902) away from the cover (4) has a lifting groove (905). Two sliding columns (906) are fixedly connected to the bottom of the inner wall of the lifting groove (905). A slider (907) is movably connected to the bottom of the inner wall of the lifting groove (905). The top of the sliding column (906) passes through the slider (907) and extends to the outside of the slider (907). The sliding column (906) and the slider (907) are slidably connected. The side of the slider (907) away from the cover (4) passes through the lifting groove (905) and extends to the outside of the lifting groove (905). A first locking block (909) is fixedly connected to the bottom of the slider (907). Support plates (910) are fixedly connected to the upper left and right sides of the housing (5).

6. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 5, characterized in that: The support plate (910) has a first slot (911) at the top. The bottom of the first block (909) passes through the lifting groove (905), the side plate (902) and the first slot (911) in sequence and extends into the interior of the first slot (911). The first block (909) is movably connected to the side plate (902). The first block (909) is movably engaged with the first slot (911). A spring (908) is sleeved above the surface of the sliding column (906).

7. The explosion-proof diesel engine trackless rubber-tired vehicle door opening brake protection device according to claim 6, characterized in that: The bottom of the spring (908) abuts against the top of the slider (907), and the top of the spring (908) abuts against the top of the inner wall of the lifting groove (905). The top of the left and right sides of the housing (5) are provided with second slots (912). The second slots (912) are movably engaged with second blocks (913). The second blocks (913) are fixedly connected to the side plate (902).

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