A quick-locking device for preventing loosening of metal hose connections

Abstract

This utility model discloses a quick-locking device for preventing loosening of metal hose connections, including a hook, a buckle, a wire rope, a handle, a switch, a housing, a ratchet, and a pawl. The ratchet and pawl are located inside the housing. The handle is fixedly connected to the ratchet via a rotating shaft. The rotating shaft has a wire rope hole. The wire rope passes through the wire rope hole, with one end connected to the hook and the other end connected to the buckle. The switch is connected to the pawl. When the switch is rotated in a first direction, the pawl can engage with the ratchet for a limited position. When the switch is rotated in a second direction opposite to the first direction, the pawl can release from the ratchet engagement. This utility model simplifies the operation process for preventing loosening of metal hoses and equipment connections, reduces the workload of personnel, improves work efficiency, ensures the connection quality of metal hoses and equipment, and reduces potential risks during operation.

Description

Technical Field

[0001] This utility model belongs to the field of anti-loosening and locking technology of connectors, and in particular relates to a quick-locking device for anti-loosening of metal hose connections. Background Technology

[0002] When a system's metal hoses are connected to other metal hoses or to fixed filling pipelines and equipment via quick couplings, to prevent propellant leakage due to loosening of the connection, anti-loosening measures (commonly known as securing the connection) are required. Currently, the traditional method for securing the connection is manual wire binding. The specific procedure is as follows: first, wrap the handles, hammer heads, or bolt heads on both sides of the connection with wire; then, use a flathead screwdriver or similar tool to insert into the middle of the wire and twist it into a spiral shape to achieve a tightening effect, thereby preventing the connection from loosening. Figure 1 As shown. The traditional method of securing connections with wire has the following main problems: First, it is complicated and inefficient. This method involves multiple steps, including estimating and cutting the wire length, winding and connecting the wire, tightening the wire, and cutting off excess length. The operation is quite complicated, and each connection takes about 3 to 5 minutes to secure, which is time-consuming. For example, it takes about 2 hours to complete the entire task, becoming a major bottleneck restricting the work progress. Second, it requires high operating skills. The wire securing method involves multiple steps and requires a high level of operating experience, especially in the wire tightening step. If the force is not properly controlled, it may not achieve the anti-loosening effect, or it may lead to excessive tension affecting the connection quality, or even causing the wire to fatigue and break. Personnel without operating training and experience are usually not competent enough to do this. Third, multiple risks exist. Wire securing requires tools such as diagonal pliers and screwdrivers. Careless operation can easily lead to the risk of falling objects from heights. The sharp ends of the wire often cause cuts to the operator. In addition, incomplete cleaning of the cut excess wire can become a hidden danger in the system. Utility Model Content

[0003] The purpose of this utility model is to provide a quick-locking device for preventing loosening of metal hose connections, which simplifies the operation process of preventing loosening of metal hoses and equipment connections, reduces the workload of personnel, improves work efficiency, ensures the connection quality of metal hoses and equipment, reduces the risk of accidents during operation, and achieves safe and efficient propellant loading / transfer operations, while directly saving the consumption of materials such as iron wire.

[0004] The technical solution adopted in this utility model is:

[0005] A quick-locking device for preventing loosening of a metal flexible hose connection includes a hook, a buckle, a wire rope, a handle, a switch, a housing, a ratchet, and a pawl;

[0006] The ratchet and pawl are located inside the housing. The handle is fixedly connected to the ratchet via a rotating shaft. A wire rope hole is provided on the rotating shaft. The wire rope passes through the wire rope hole and is connected at one end to the hook and at the other end to the buckle. The switch is connected to the pawl. When the switch is rotated in the first direction, the pawl can engage with the ratchet and be limited. When the switch is rotated in the second direction opposite to the first direction, the pawl can release from engaging with the ratchet and be limited.

[0007] Furthermore, the end of the switch located inside the housing is connected to the inner side of the pawl, and the end face of the switch located inside the housing is larger in the middle and smaller at both ends.

[0008] Furthermore, it also includes a spring, one end of which abuts against the inside of the housing and the other end of which abuts against the outer side of the pawl.

[0009] Furthermore, the pawl includes an upper pawl and a lower pawl, the spring includes an upper spring and a lower spring, the end of the switch located inside the housing is located between the upper pawl and the lower pawl, one end of the upper spring abuts against the inside of the housing and the other end abuts against the outer side of the upper pawl, one end of the lower spring abuts against the inside of the housing and the other end abuts against the outer side of the lower pawl.

[0010] Furthermore, holes are provided on both sides of the shell, through which the steel wire rope passes out from inside the shell.

[0011] The beneficial effects of this utility model are:

[0012] 1. Significantly Improved Work Efficiency: Currently, after connecting metal hoses and equipment, the traditional method of applying safety locks requires a dedicated person to use multiple tools, resulting in a complex and multi-step process. The quick-locking device, however, simplifies operation, eliminating the need for frequent use of multiple tools. Simply twisting the handle quickly completes the anti-loosening locking operation for one connection within 2 minutes. Removal is also straightforward; simply switching the switch to the unlock position allows for quick detachment. Overall work efficiency is more than doubled compared to the traditional method. For some tasks, where there are over a hundred safety lock points after connecting metal hoses and equipment, the quick-locking device can shorten this process to within one hour.

[0013] 2. Guaranteed operational quality: Compared with the traditional method of securing metal hoses and equipment connections, the quick-locking device effectively reduces reliance on operational experience. Due to the adjustable length and elasticity of the wire rope, it is highly adaptable, achieving both anti-loosening and locking of the connection while effectively controlling the locking force. The operation process does not affect the sealing of the connection, ensuring connection quality. The entire securing process is standardized, orderly, and precise.

[0014] 3. Effective reduction of safety risks: The quick-locking device is used to secure the connection. Except for a small, lightweight special wrench, no pliers, screwdrivers or other tools are needed for operation, reducing the risk of falling objects from heights. When securing the connection, the quick-locking device uses a steel wire rope to prevent loosening, eliminating the need for iron wire and thus avoiding accidental injury to personnel during operation. It also eliminates the hidden dangers caused by excess material.

[0015] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached image description:

[0016] Figure 1 This is a schematic diagram of the traditional safety lock method for preventing loosening of metal flexible hose connections.

[0017] Figure 2 This is a schematic diagram of the overall design of the metal flexible hose connection anti-loosening and quick-locking device of this utility model.

[0018] Figure 3 This is a partial schematic diagram of the anti-loosening and quick-locking device for metal flexible hose connection of this utility model.

[0019] Figure 4 This is a partial schematic diagram of the anti-loosening and quick-locking device for metal flexible hose connection of this utility model.

[0020] Figure 5 This is a disassembly diagram of the internal structure of the metal flexible hose connection anti-loosening and quick-locking device of this utility model.

[0021] Figure 6 This is a schematic diagram of the internal structure of the metal flexible hose connection anti-loosening and quick-locking device of this utility model.

[0022] Figure 7 This is a diagram showing the ratchet and pawl not engaging.

[0023] Figure 8 This is a schematic diagram of the ratchet and the upper pawl engaging.

[0024] Figure 9 This is a schematic diagram of the ratchet and lower pawl engaging. Detailed Implementation

[0025] The specific embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention.

[0026] The directional terms such as up, down, left, right, front, back, clockwise, and counterclockwise mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] Combination Figure 2-6 A quick-locking device for preventing loosening of a metal flexible hose connection includes a hook 1, a buckle 2, a wire rope 3, a handle 4, a switch 5, a housing 6, a ratchet 7, and a pawl 8.

[0028] The ratchet 7 and pawl 8 are located inside the housing 6. The handle 4 is fixedly connected to the ratchet 7 via a rotating shaft 4-1. A wire rope hole 4-2 is provided on the rotating shaft 4-1. The wire rope 3 passes through the wire rope hole 4-2 and one end is connected to the hook 1, and the other end is connected to the buckle 2. The switch 5 is connected to the pawl 8. When the switch 5 is rotated in the first direction, the pawl 8 can engage with the ratchet 7 for a limited position. When the switch 5 is rotated in the second direction opposite to the first direction, the pawl 8 can release from engaging with the ratchet 7 for a limited position.

[0029] The quick-locking device consists of a handle 4 for turning the ratchet 7 and the lower shaft 4-1, a pawl 8 for locking the ratchet 7 after the handle 4 is released to prevent it from rotating in the opposite direction, a switch 5 for switching the pawl 8's position, a thin steel wire rope 3 passing through the shaft 4-1 for tightening the stress points on both sides of the connection, and a housing 6 for assembling the components. The working principle of the quick-locking device is as follows: When locking, the switch 5 is switched to the locking position. By manually turning the handle 4 clockwise, the ratchet 7 and shaft 4-1 rotate. The thin steel wire rope 3, passing through the shaft hole, is gradually tightened as it winds around the axle. Due to the action of the switch 5, the pawl 8 restricts the ratchet 7 to rotate only clockwise. When the handle 4 is tightened to a certain extent, the anti-loosening locking effect of the connection is achieved. To remove the quick-locking device, simply switch the switch 5 to the unlocking position, and the thin steel wire rope 3 will automatically loosen, allowing the quick-locking device to be quickly removed.

[0030] In actual operation, the quick-locking device switcher is placed in the unlocking position. The thin steel wire rope 3 is pulled out to a suitable length. The loops 2 and hooks 1 at both ends of the steel wire rope are respectively attached to the force points (handle, striking head, or bolt head) on both sides of the connection part. Then, the switcher 5 is placed in the locking position, and the handle 4 is turned clockwise quickly. The thin steel wire rope 3 is gradually tightened, ultimately achieving the function of quickly locking the connection part to prevent loosening. To compensate for the mechanical backlash of the ratchet teeth and the elasticity of the thin steel wire rope, the torque of the handle can be increased using a special wrench to adjust the tension to a suitable level and ensure the connection quality.

[0031] The main technical parameters of the quick-locking device in this embodiment are shown in Table 1.

[0032] Table 1 Main Technical Parameters of the Quick Locking Device

[0033]

[0034] Preferably, combined with Figure 7 The end of the switcher 5 located inside the housing 6 is connected to the inner side of the pawl 8. The end face of the switcher 5 located inside the housing 6 is larger in the middle and smaller at both ends.

[0035] Preferably, it also includes a spring 9, one end of which abuts against the inside of the housing 6 and the other end of which abuts against the outer side of the pawl 8. After the switch 5 is moved to the unlock position, the pawl 8 can be reset under the elastic force of the spring 9.

[0036] Preferably, combined with Figure 7-9 The pawl 8 includes an upper pawl 8-1 and a lower pawl 8-2, and the spring 9 includes an upper spring 9-1 and a lower spring 9-2. The end of the switch 5 located inside the housing 6 is between the upper pawl 8-1 and the lower pawl 8-2. One end of the upper spring 9-1 abuts against the inside of the housing 6 and the other end abuts against the outer side of the upper pawl 8-1. One end of the lower spring 9-2 abuts against the inside of the housing 6 and the other end abuts against the outer side of the lower pawl 8-2.

[0037] In this embodiment, the upper pawl 8-1 and the lower pawl 8-2 serve only one function in actual use. Figure 8 This is a schematic diagram showing the upper pawl 8-1 engaging with the ratchet 7. In this state, the lower pawl 8-2 does not engage. When the switch 5 is rotated in the opposite direction, as shown... Figure 9 As shown, the lower pawl 8-2 is engaged with the ratchet 7, and the upper pawl 8-1 does not engage in this state.

[0038] Preferably, holes are provided on both sides of the housing 6, and the steel wire rope 3 passes through the holes and exits from the housing 6.

[0039] One end of the wire rope 3 is a loop, and the other end is a self-locking hook. When it needs to be locked, pull out the thin wire rope to a suitable length, and put the loops and hooks at both ends of the wire rope on the force points on both sides of the connection part. Set the switch to the locking position, turn the handle clockwise, and the thin wire rope will be tightened, realizing the function of fast locking to prevent loosening of the connection part.

[0040] Quick-locking devices can improve work efficiency, reduce reliance on experience, ensure connection quality, and avoid potential risks, thereby solving the problems of traditional methods such as cumbersome operation, low efficiency, high skill requirements, difficulty in guaranteeing connection quality, and multiple risks.

[0041] Finally, it should be noted that the above description is only for illustrating the implementation of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-locking device for preventing loosening of metal flexible hose connections, characterized in that, Includes hook (1), buckle (2), wire rope (3), handle (4), switcher (5), housing (6), ratchet (7) and pawl (8); The ratchet (7) and pawl (8) are located inside the housing (6). The handle (4) is fixedly connected to the ratchet (7) via a rotating shaft (4-1). A wire rope hole (4-2) is provided on the rotating shaft (4-1). The wire rope (3) passes through the wire rope hole (4-2) and one end is connected to the hook (1), and the other end is connected to the buckle (2). The switch (5) is connected to the pawl (8). When the switch (5) is rotated in the first direction, the pawl (8) can engage with the ratchet (7) for a limited position. When the switch (5) is rotated in the second direction opposite to the first direction, the pawl (8) can release from engaging with the ratchet (7) for a limited position.

2. The metal flexible hose connection anti-loosening and quick-locking device according to claim 1, characterized in that, The end of the switch (5) located inside the housing (6) is connected to the inner side of the pawl (8). The end face of the switch (5) located inside the housing (6) is larger in the middle and smaller at both ends.

3. The metal flexible hose connection anti-loosening and quick-locking device according to claim 2, characterized in that, It also includes a spring (9), one end of which abuts against the inside of the housing (6) and the other end of which abuts against the outer side of the pawl (8).

4. The metal flexible hose connection anti-loosening and quick-locking device according to claim 3, characterized in that, The pawl (8) includes an upper pawl (8-1) and a lower pawl (8-2), and the spring (9) includes an upper spring (9-1) and a lower spring (9-2). The end of the switch (5) located inside the housing (6) is located between the upper pawl (8-1) and the lower pawl (8-2). One end of the upper spring (9-1) abuts against the inside of the housing (6) and the other end abuts against the outer side of the upper pawl (8-1). One end of the lower spring (9-2) abuts against the inside of the housing (6) and the other end abuts against the outer side of the lower pawl (8-2).

5. The metal flexible hose connection anti-loosening and quick-locking device according to claim 4, characterized in that, Holes are provided on both sides of the shell (6), and the wire rope (3) passes through the holes and exits from the shell (6).

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