A kind of impact locking hook device for welding heat-insulated gas cylinder carrier

Abstract

The utility model discloses a kind of for welding heat-insulated gas cylinder carrying vehicle's impact locking hook device, it is related to gas cylinder carrying equipment technical field, to solve the problem of existing welding heat-insulated gas cylinder carrying process easy to fall, operation is complicated, low safety. The device includes fixed plate, suspension hook, impact plate, locking handle and adjusting rack, by impact trigger suspension hook automatic locking gas cylinder protection ring, and by handle control unlocking, realize fast, safe, labor-saving carrying operation. The utility model is applicable to 175L to 210L welding heat-insulated gas cylinder, can improve carrying efficiency by more than 30%, reduce the incidence of safety accident, with significant practical value.

Description

Technical Field

[0001] This utility model relates to the technical field of gas cylinder handling equipment, specifically to an impact locking hook device for a safety handling vehicle for 175L to 210L welded insulated gas cylinders. Background Technology

[0002] Welded insulated gas cylinders, as key equipment for storing cryogenic liquids, are widely used in industrial production, with millions in use globally and requiring millions of handling operations daily. Currently, there is a lack of specialized handling tools in China for 175L to 210L welded insulated gas cylinders. Manual lifting or general-purpose forklifts are commonly used. When lifting manually, the heavy cylinders (120kg-400kg) can cause worker fatigue, leading to cylinders falling and causing equipment damage and personal injury. When using general-purpose forklifts, the lack of specialized locking mechanisms allows cylinders to easily shake or even tip over during transport, posing significant safety hazards.

[0003] Furthermore, some existing locking devices are cumbersome to operate, requiring manual engagement of the hooks. This not only increases labor intensity but also prolongs the time spent on each transport, resulting in low transport efficiency. Therefore, developing a dedicated locking device that can lock quickly, is labor-saving to operate, and is highly safe has become an urgent need in the industry. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an impact locking hook device for a welding insulation gas cylinder transport vehicle, which is suitable for fast and safe transport of welding insulation gas cylinders.

[0005] The technical solution adopted by this utility model to solve the above problems is: an impact locking hook device for welding insulated gas cylinder transport vehicles, the structure of which includes: Fixed plate: Made of Q235 and S30408 ​​steel plate, 4-6mm thick, it is fixed to the frame of the transport vehicle by bolts. It is equipped with a rack and pinion, which can be adjusted in the vertical direction to adapt to different vehicle models.

[0006] The suspension hook is constructed from two S30408 ​​hook plates bolted together, enhancing strength and reducing weight. The hook head's radius of curvature is matched to the gas cylinder's protective ring (R=25-30mm). An oil-impregnated bearing is installed at the rotating shaft to reduce rotational resistance. The suspension hook connects to the impact plate assembly via a connecting block and positive / negative screws, allowing it to rotate within a 0°-42° range around the rotating shaft (0° open, 42° closed). Adjusting the positive / negative screws adjusts the rotation angle limits, thereby regulating the hook's opening size and minimum opening when closed.

[0007] Impact plate: Made of S30408 ​​(6mm thick), welded and fixed to the impact plate connecting plate, linked to the suspension hook via a positive and negative thread assembly, and simultaneously linked to the locking assembly. A spring is used to receive the impact force of the gas cylinder protection ring and transmit it to the suspension hook, and a double spring resets the mechanism.

[0008] Locking handle: Made of engineering plastic, it is connected to the locking pin via a pull rod and spring return. A return spring (spring stiffness coefficient 5N / mm) is sleeved on the outside of the pull rod. When the suspension hook is in the open or closed position, the spring compression is 15mm, storing the return kinetic energy.

[0009] Adjustable rack: Set vertically along the fixed plate with a tooth pitch of 8mm, it engages with the locking block. The height of the suspension hook can be adjusted by moving along the rack (adjustment range 250mm), adapting to the height difference of the protective ring of gas cylinders from 175L to 210L.

[0010] Working principle Locking process: The operator pushes the transport trolley so that the front wheels touch the bottom of the gas cylinder, lifts the rear end of the trolley, and the gas cylinder protective ring hits the impact plate; the impact force is transmitted to the suspension hook through the impact plate, driving the suspension hook to rotate upward around the rotation axis (from 0° to 42°), and the hook head engages with the protective ring; at this time, the locking pin is locked by the spring force of the return spring, the suspension hook remains in the closed state, and the gas cylinder is stably fixed.

[0011] Unlocking process: After the gas cylinder is moved to the designated position and upright, the operator pulls the locking handle. The lever drives the locking pin to move in the opposite direction against the spring force. At the same time, the impact plate assembly and the suspension hook assembly are reset under the action of the double springs. The suspension hook returns to the 0° open position, the gas cylinder protective ring disengages from the hook, and the unlocking is completed.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. Significantly improved safety: The dual mechanism of automatic locking upon impact and spring reset unlocking avoids cylinder detachment caused by human error. Tests have shown that it can reduce the handling accident rate by more than 90% and prevent cylinders from sliding when being handled at an angle.

[0013] 2. Effortless and efficient operation: The impact-triggered locking eliminates the need for manual bending and fastening, reducing the single operation time from 30 seconds in existing technologies to 5 seconds, and increasing handling efficiency by 600%; the reset spring assists in unlocking, with an operating force of ≤10N, which is only 1 / 5 of that of existing manual devices.

[0014] 3. High adaptability: The height can be adjusted from 0-250mm by adjusting the rack, covering the protective ring height range of 175L to 210L gas cylinders, and its versatility is better than existing fixed-size devices.

[0015] 4. Durable structure: Key components are made of high-strength steel, and the impact plate buffer layer can absorb 80% of the impact energy, extending the service life of the device to more than 5,000 times (the average service life of existing devices is 2,000 times). Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of this utility model (natural state: the hook is open). Figure 2 This is a schematic diagram of the structure of the present invention (working state: the suspension hook is closed).

[0017] Figure 3 This is a schematic diagram of the internal structure of this utility model (transmission assembly).

[0018] In the diagram: 1 - Locking handle, 2 - Fixing plate, 3 - Impact plate, 4 - Schematic cross-section of protective ring, 5 - Suspension hook, 6 - Adjusting rack. Detailed Implementation

[0019] The technical solution of this utility model will be described in more detail below with reference to preferred embodiments. However, these embodiments are merely descriptions of preferred implementations of this utility model and should not be construed as limiting the scope of this utility model in any way.

[0020] As shown in Figure 1, the fixing plate 2 is connected to the transport vehicle frame by M6 bolts, and the waist-shaped hole allows for ±50mm horizontal adjustment; the rotating shaft of the suspension hook 5 meshes with the adjusting rack 6, and the height position is fixed by the locking nut on the rotating shaft; the rubber buffer layer of the impact plate 3 contacts the gas cylinder protection ring (diagram section 4) to ensure no rigid damage during impact; the locking handle 1 is connected to the locking pin through a φ14mm pull rod to lock the suspension hook 5, and the return spring has a natural length of 40mm, and achieves locking when compressed to 25mm.

[0021] In actual operation, for a 175L gas cylinder (protective ring height 1460mm), the suspension hook 5 is adjusted to a height of 750mm; for a 210L gas cylinder (protective ring height 1700mm), it is adjusted to a height of 1700mm. Upon impact, the gas cylinder protective ring strikes the impact plate 3 at a speed of 0.5m / s, and the suspension hook 5 locks within 0.3 seconds; to unlock, pull the locking handle 1 to the end of its stroke (approximately 250mm), and the suspension hook 5 resets within 0.2 seconds.

[0022] 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 invention should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An impact locking hook device for a welding insulated gas cylinder transport vehicle, characterized in that, include: A fixed plate is fixedly connected to the frame of the transport vehicle; a suspension hook is hinged to the fixed plate via a rotating shaft and can rotate around the rotating shaft between an open position and a closed position; an impact plate is located on the side of the suspension hook near the front end of the transport vehicle and is linked to the suspension hook; a locking handle is connected to the suspension hook via a transmission assembly and is used to control the suspension hook to return from the closed position to the open position; when the impact plate is subjected to the impact force of the gas cylinder protection ring, the suspension hook rotates from the open position to the closed position to hook the gas cylinder protection ring; when the locking handle is operated, the suspension hook returns from the closed position to the open position.

2. The impact locking hook device for a welding insulation gas cylinder transport vehicle according to claim 1, characterized in that: The device includes an adjusting rack, which is fixed vertically to the fixed plate. The rotation axis of the suspension hook is engaged with the adjusting rack, and the height of the suspension hook can be adjusted by moving the rotation axis along the adjusting rack.

3. The impact locking hook device for a welding insulation gas cylinder transport vehicle according to claim 1, characterized in that: The transmission assembly includes a pull rod and a return spring. One end of the pull rod is connected to the locking handle, and the other end is hinged to the suspension hook. The return spring is sleeved on the outside of the pull rod, with one end abutting against the fixing plate and the other end abutting against the suspension hook. When the suspension hook is in the closed position, the return spring is in a compressed state. When the locking handle is operated to pull the pull rod, the return spring releases its elastic force to drive the suspension hook to return to the open position.

4. The impact locking hook device for a welding insulation gas cylinder transport vehicle according to claim 1, characterized in that: The impact plate is cushioned by a spring on the side away from the suspension hook.

5. The impact locking hook device for a welding insulation gas cylinder transport vehicle according to claim 1, characterized in that: The fixing plate is provided with a waist-shaped hole that extends horizontally, for adjusting the fixing plate to the transport vehicle frame by bolts.

6. The impact locking hook device for a welding insulation gas cylinder transport vehicle according to claim 1, characterized in that: The impact plate and the suspension hook are fixed by welding, and the included angle between them is 120°-150°.

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