Guard for a rear platform of a water sprinkling vehicle

Abstract

The utility model discloses a protection device of rear platform of watering cart, including setting on watering cart's rear platform, and the rear platform includes base and the guardrail with the platform entrance, and the guardrail is equipped with the gate mechanism at the platform entrance, and the gate mechanism includes drive assembly and a plurality of baffle, and one end rotationally connected with the same vertical rod of a plurality of baffles, and drive assembly opens and closes the platform entrance through the deflection of baffle and vertical rod, and the guardrail is equipped with the safety belt mechanism, and the safety belt mechanism includes the bandage and the belt for binding personnel. The utility model discloses the baffle and vertical rod of deflection adjustment on the base cooperate with the guardrail to form the rear platform of both sides closed to guarantee the safety of personnel when working on it, and through the deflection adjustment of baffle and vertical rod, the one side opening of guardrail can be adjusted, so as to facilitate personnel to go up and down the rear platform.

Description

Technical Field

[0001] This utility model relates to the field of water truck rear platform technology, and in particular to a protective device for water truck rear platform. Background Technology

[0002] A water sprinkler truck mainly consists of a truck chassis, water tank, power take-off, water pump, piping system, and rear work platform. The rear work platform is a standard feature of water sprinkler trucks, installed at the very rear of the truck, behind the tank. Its main components include: base, guardrails, rear spray pipes, and high-mounted water cannon.

[0003] To facilitate personnel getting on and off the rear work platform of the water truck, the guardrail is usually designed with one side closed and the other side open. The platform can be accessed from the open side of the guardrail using the step. However, while this makes it convenient for personnel to get on and off the platform, the open position of the step on the guardrail poses a safety hazard. There is a risk that personnel may fall while the vehicle is in motion due to incomplete protection.

[0004] A search revealed that Chinese utility model patent CN201544842U discloses a water truck working platform, consisting of a platform base plate and guardrails. The platform features guardrails I and II fixed to the edges of the upper surface of the platform base plate, a rear combined light frame symmetrically fixed to the lower surface of the platform base plate, and a rear bumper fixed to the lower surface of the platform base plate via bumper vertical supports. These vertical supports are used in pairs and symmetrically distributed on both sides of the center line of the platform base plate. Connecting blocks are symmetrically fixed to the platform longitudinal beams. The platform base plate consists of a platform crossbeam, platform longitudinal beams, the platform base plate itself, and a water gun bracket. The platform crossbeams are perpendicular to the platform longitudinal beams, and the platform longitudinal beams are used in pairs. While this water truck working platform comprises a base plate and guardrails, its guardrails have an open access point, resulting in incomplete protection and a risk of personnel falling from the access point, thus compromising the safety of personnel working on the rear platform. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a protective device for the rear platform of a sprinkler truck, and the main technical problem to be solved is how to ensure the safety of personnel on the rear working platform of the sprinkler truck.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A protective device for the rear platform of a water sprinkler truck includes a rear platform installed on the water sprinkler truck. The rear platform includes a base and a guardrail with an access point. The guardrail has a gate mechanism at the access point. The gate mechanism includes a drive component and several baffles. One end of each baffle is rotatably connected to the same upright. The drive component opens and closes the access point by driving the baffles and the upright to deflect. The guardrail is equipped with a safety belt mechanism, which includes straps and a waist belt for restraining personnel.

[0007] Furthermore, the guardrail is fixedly connected to the housing at the platform entrance, and the drive assembly includes a worm gear that passes through the top of the housing.

[0008] Furthermore, a turntable is fixedly connected to the top of the worm gear, and a handle is rotatably connected to one side of the top of the turntable.

[0009] Furthermore, several rotating shafts are rotatably connected between the inner walls of both sides of the housing, and worm gears are connected to the outside of the rotating shafts via keys, with the worm gears meshing with the worm.

[0010] Furthermore, a baffle is installed through one side of the housing, and the number of baffles is the same as that of the rotating shaft and they correspond one-to-one. The end of the baffle in the housing is fixedly connected to the rotating shaft.

[0011] Furthermore, loops are fixedly connected to both sides of the guardrail, and the two ends of the straps are fixedly connected to the two loops respectively.

[0012] Furthermore, two spring buckles are provided on the outer side of the strap, and the two ends of the belt are respectively fixedly connected to the two spring buckles.

[0013] Furthermore, a positioning sleeve is fixedly connected to the top of the base on the outside of the upright. A side plate is rotatably connected to one side of the positioning sleeve. A torsion spring is fixedly connected between the side plate and the positioning sleeve. A lever is fixedly connected to the outside of the side plate.

[0014] Furthermore, a locking block is provided through one side of the positioning sleeve, and the locking block is fixedly connected to the side plate at one end of the outer side of the positioning sleeve. A slot that matches the locking block is opened at the bottom outer side of the upright.

[0015] The beneficial effects of this utility model are as follows: 1. This application uses adjustable baffles and uprights on the base to cooperate with the guardrail to form a rear platform that is enclosed on both sides, ensuring the safety of personnel working on it. By adjusting the baffles and uprights, one side of the guardrail can be opened to facilitate personnel getting on and off the rear platform. In addition, personnel can be restrained by straps and waist belts to prevent the danger of falling, and the position of the waist belt on the straps is adjustable, so it does not restrict the movement of personnel on the rear platform. 2. By setting a worm gear to drive the worm wheel to rotate, the deflection of the baffle and the upright can be adjusted. The reverse self-locking effect of the transmission between the two can maintain the stability of the latter two after the deflection is adjusted. Therefore, it can ensure that the baffle and the upright cooperate with the guardrail to provide protection for the personnel on the rear platform. 3. By setting a positioning sleeve at the landing point of the upright on the base, and using the locking block on the positioning sleeve to cooperate with the locking groove on the upright, the upright can be locked to further ensure its stability, so as to avoid accidental contact with the turntable and handle, which would cause the guardrail to be opened. Therefore, the safety of personnel on the rear platform can be further guaranteed. Attached Figure Description

[0016] Figure 1 This is a perspective view of a protective device for the rear platform of a sprinkler truck according to Embodiment 1 of this application; Figure 2 This is a side sectional view of the housing of a protective device for the rear platform of a sprinkler truck according to Embodiment 1 of this application; Figure 3 This is a perspective view of a protective device for the rear platform of a sprinkler truck according to Embodiment 2 of this application; Figure 4 This is a perspective view of the positioning sleeve of a protective device for the rear platform of a sprinkler truck according to Embodiment 2 of this application.

[0017] Explanation of icon numbers: Rear platform 1, base 101, guardrail 102, collar 2, strap 3, spring buckle 4, waist belt 5, handle 6, turntable 7, housing 8, baffle 9, upright 10, worm gear 11, worm wheel 12, shaft 13, positioning sleeve 14, torsion spring 15, paddle 16, side plate 17, locking block 18. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

[0019] Example 1 See attached document Figure 1-2 This application provides a protective device for the rear platform of a water sprinkler truck, including a rear platform 1 installed on the water sprinkler truck. The rear platform 1 includes a base 101 and a guardrail 102 with a platform opening. The guardrail 102 has a gate mechanism at the platform opening. The gate mechanism includes a drive component and several baffles 9. One end of the several baffles 9 is rotatably connected to the same upright 10. The drive component opens and closes the platform opening by driving the baffles 9 and the upright 10 to deflect.

[0020] Preferably, the guardrail 102 is fixedly connected to the housing 8 at the platform opening. The guardrail 102 is typically designed to be open on one side and closed on the other, with the open side serving as the platform opening. The drive assembly includes a worm gear 11 that passes through the top of the housing 8. A turntable 7 is fixedly connected to the top of the worm gear 11, and a handle 6 is rotatably connected to one side of the top of the turntable 7.

[0021] Preferably, several rotating shafts 13 are rotatably connected between the inner walls of both sides of the housing 8. Worm gears 12 are connected to the outside of each rotating shaft 13 via keys. The worm gears 12 mesh with the worm 11, and the transmission between the worm 11 and the worm gears 12 has a reverse self-locking effect, thus ensuring the stability of the baffle 9 and the upright 10 after deflection adjustment. A baffle 9 is disposed through one side of the housing 8, and the number of baffles 9 is the same as the number of rotating shafts 13, with each baffle 9 corresponding to one of them. One end of the baffle 9 within the housing 8 is fixedly connected to a rotating shaft 13.

[0022] When it is necessary to work on the rear platform of the sprinkler truck, the handle 6 can be cranked to adjust the turntable 7 to rotate. The turntable 7 drives the worm wheel 12 to rotate through the worm gear 11. The worm wheel 12 drives the baffle 9 to deflect through the rotating shaft 13. In this way, the baffle 9 and the upright 10 can be adjusted to deflect upward, thereby opening the access point on the guardrail 102.

[0023] Then, one can climb onto the rear platform 1 from the access point, and can reverse the handle 6 to adjust the baffle 9 and the upright 10 to deflect downwards, so as to re-close the access point and make the guardrail 102 closed. In this case, the guardrail 102 can provide more adequate protection for the personnel on the rear platform 1.

[0024] Preferably, the guardrail 102 is equipped with a safety belt mechanism, which includes a strap 3 and a waist belt 5 for restraining personnel. Loops 2 are fixedly connected to both sides of the guardrail 102. The loops 2 are secured to the guardrail 102 by bolts. By loosening the bolts, the height of the loops 2 on the guardrail 102 can be adjusted to accommodate workers of different heights. The two ends of the straps 3 are fixedly connected to two loops 2 respectively. Two spring buckles 4 are provided on the outer side of the straps 3, and the two ends of the waist belt 5 are fixedly connected to two spring buckles 4 respectively.

[0025] In addition, after the staff wraps the belt 5 around their waist, they can fasten the spring buckles 4 at both ends of the belt 3. At this time, the belt 3 and the belt 5 can form a ring structure to restrain the staff and prevent them from falling. Since the spring buckles 4 can still move along the length of the belt after being fastened to the belt 3, it can provide the staff with a range of movement on the rear platform 1 to ensure flexibility.

[0026] Example 2 See attached document Figure 3-4This application provides a protective device for the rear platform of a water sprinkler truck. Compared with embodiment 1, in order to further ensure the safety of personnel on the rear platform 1, a positioning sleeve 14 is fixedly connected to the top of the base 101 at the outside of the upright 10. A side plate 17 is rotatably connected to one side of the positioning sleeve 14. A torsion spring 15 is fixedly connected between the side plate 17 and the positioning sleeve 14. A lever 16 is fixedly connected to the outside of the side plate 17.

[0027] Preferably, a locking block 18 is provided through one side of the positioning sleeve 14. The locking block 18 is fixedly connected to the side plate 17 at one end of the outer side of the positioning sleeve 14, and a slot adapted to the locking block 18 is provided at the bottom outer side of the upright rod 10. Since the positioning sleeve 14 is set on the base 101, the lever 16 can be operated with the foot, while the handle 6 and the turntable 7 can be operated by hand to conveniently adjust the opening and closing of the platform.

[0028] After the upright 10 is adjusted downwards and falls on the base 101, the bottom end of the upright 10 will enter the positioning sleeve 14. At this time, the side plate 17 will be pressed tightly against the surface of the positioning sleeve 14 under the elastic force of the torsion spring 15, thus pushing the locking block 18 into the slot on the upright 10, thereby locking the upright 10 to further ensure its stability, so as to prevent accidental contact with the handle 6 and the turntable 7 from changing the sealing state of the baffle 9 and the upright 10 on the platform opening, thus further ensuring the safety of personnel on the rear platform 1. When it is necessary to unlock the upright 10, simply move the lever 16 to adjust the side plate 17 to deflect, thereby causing the locking block 18 to deflect to separate from the upright 10. In this case, the upright 10 can be adjusted to leave the positioning sleeve 14.

[0029] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A protective device for the rear platform of a sprinkler truck, comprising a rear platform (1) installed on the sprinkler truck, the rear platform (1) comprising a base (101) and a guardrail (102) having a platform opening, characterized in that, The guardrail (102) is equipped with a gate mechanism at the platform entrance. The gate mechanism includes a drive assembly and several baffles (9). One end of each baffle (9) is rotatably connected to the same upright (10). The drive assembly opens and closes the platform entrance by driving the baffles (9) and the upright (10) to deflect. The guardrail (102) is equipped with a safety belt mechanism, which includes a strap (3) and a waist belt (5) for restraining personnel.

2. The protective device for the rear platform of a sprinkler truck according to claim 1, characterized in that, The guardrail (102) is fixedly connected to the housing (8) at the platform entrance, and the drive assembly includes a worm gear (11) that passes through the top of the housing (8).

3. The protective device for the rear platform of a sprinkler truck according to claim 2, characterized in that, The top end of the worm (11) is fixedly connected to a turntable (7), and a handle (6) is rotatably connected to one side of the top end of the turntable (7).

4. The protective device for the rear platform of a sprinkler truck according to claim 2, characterized in that, Several rotating shafts (13) are rotatably connected between the inner walls of the two sides of the housing (8). A worm wheel (12) is connected to the outside of the rotating shaft (13) by a key. The worm wheel (12) meshes with the worm (11).

5. A protective device for the rear platform of a sprinkler truck according to claim 4, characterized in that, The baffle (9) is disposed through one side of the housing (8). The number of baffles (9) is the same as that of the rotating shaft (13) and they correspond one-to-one. One end of the baffle (9) in the housing (8) is fixedly connected to the rotating shaft (13).

6. A protective device for the rear platform of a sprinkler truck according to claim 1, characterized in that, Both sides of the guardrail (102) are fixedly connected with collars (2), and the two ends of the strap (3) are fixedly connected to the two collars (2) respectively.

7. A protective device for the rear platform of a sprinkler truck according to claim 6, characterized in that, Two spring buckles (4) are provided on the outer side of the strap (3), and the two ends of the waist belt (5) are respectively fixedly connected to the two spring buckles (4).

8. A protective device for the rear platform of a sprinkler truck according to claim 1, characterized in that, The top of the base (101) is fixedly connected to a positioning sleeve (14) on the outside of the upright (10). A side plate (17) is rotatably connected to one side of the positioning sleeve (14). A torsion spring (15) is fixedly connected between the side plate (17) and the positioning sleeve (14). A paddle (16) is fixedly connected to the outside of the side plate (17).

9. A protective device for the rear platform of a sprinkler truck according to claim 8, characterized in that, A locking block (18) is provided through one side of the positioning sleeve (14). The locking block (18) is fixedly connected to the side plate (17) at one end outside the positioning sleeve (14). A slot adapted to the locking block (18) is provided at the bottom outer side of the upright (10).

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