A multiple protection structure parachute safety catch

Abstract

The utility model relates to the technical field of parachute safety lock and discloses a parachute safety lock with multiple protection structures, which comprises a lock body, a lock bolt spring seat is connected to one end of the lock body through a connecting piece, a lock bolt is connected to the lock bolt spring seat, a lock seat is connected to the other end of the lock body, first mounting holes are formed in one side of the lock bolt and the lock seat, and mounting grooves are formed in the other side of the lock bolt and the lock seat and opposite to the first mounting holes. The utility model is provided with a lock bolt spring seat, first mounting holes, mounting grooves, lock nuts, second mounting holes, first connecting holes, second connecting holes, first fastening bolts and second fastening bolts, and the mutual cooperation between them can realize the design of the lock bolt and the lock seat, which are most prone to wear in the lock, as an independent and replaceable module, so that the lock does not need to be replaced as a whole during maintenance, and only the worn module needs to be replaced, thereby reducing the cost.

Description

Technical Field

[0001] This utility model relates to the field of parachute safety lock technology, specifically a parachute safety lock with a multi-protection structure. Background Technology

[0002] The parachute safety lock is the most crucial main connection and release device in a modern parachute harness system. It serves two main functions: first, during the jump, it securely connects the parachute canopy to the jumper's harness system, bearing the enormous impact force of parachute opening and flight loads; second, in emergencies, the jumper can quickly activate the device to jettison the malfunctioning main parachute, thus clearing the way for the reserve parachute to deploy and saving lives.

[0003] Existing parachute safety locks require replacement of the entire lock when a part wears out, increasing costs. Furthermore, they lack protection at the connection between the latch and the lock seat, leading to accidental unlocking due to unintended contact. This compromises the safety of the lock when locked and necessitates improvements in security. Additionally, the lack of a multi-protection structure necessitates a parachute safety lock with a multi-protection structure to address these technical issues. Utility Model Content

[0004] The purpose of this utility model is to provide a parachute safety lock with a multi-protection structure to solve the problems mentioned in the background art. In use, when a certain part is worn, the entire lock needs to be replaced, which increases the cost. Secondly, it cannot provide limiting protection at the connection between the locking tongue and the locking seat, which may lead to accidental unlocking due to accidental contact. Therefore, the safety of the lock when it is locked needs to be improved, and it lacks a multi-protection structure.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A parachute safety lock with a multi-protection structure includes a lock body. One end of the lock body is connected to a latch spring seat via a connector, and a latch is connected to the latch spring seat. The other end of the lock body is connected to a lock seat. A first mounting hole is provided on one side of both the latch and the lock seat. A mounting groove is provided on the other side of both the latch and the lock seat, opposite to the first mounting hole. A locking nut is provided in each of the two mounting grooves. A second mounting hole is provided at one end of the lock body. A first connecting hole and a second connecting hole are respectively provided on the latch and the lock seat. A first fastening bolt passes through the first mounting hole, the first connecting hole, and the second mounting hole and is threadedly fastened to the locking nut in the mounting groove. A second fastening bolt passes through the first mounting hole, the second connecting hole, and the second mounting hole and is threadedly fastened to the locking nut in the mounting groove at one end of the latch. An external thread is provided circumferentially at one end of the latch, and a limit nut is threadedly connected to the external thread section of the latch.

[0006] In a preferred embodiment of this invention, the diameter of the first mounting hole is larger than the diameter of the second mounting hole.

[0007] In a preferred embodiment of this invention, the diameter of the first connecting hole is the same as the diameter of the second mounting hole.

[0008] In a preferred embodiment of this invention, the diameter of the second connecting hole is the same as the diameter of the second mounting hole.

[0009] As a preferred technical solution of this utility model, after the limiting nut is rotated to one end of the locking tongue, the connection between the locking tongue and the locking seat can be fitted into it.

[0010] As a preferred technical solution of this utility model, the shape and size of the lock tongue and the lock seat are adapted to each other.

[0011] As a preferred embodiment of this utility model, both the first fastening bolt and the second fastening bolt are internal hex bolts.

[0012] As a preferred embodiment of this utility model, the mounting groove is a hollow hexagonal structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This utility model, by setting a latch spring seat, a first mounting hole, a mounting groove, a locking nut, a second mounting hole, a first connecting hole, a second connecting hole, a first fastening bolt, and a second fastening bolt, utilizes the mutual cooperation between them to design the latch and the lock seat, which are the most easily worn parts of the lock, as an independent, replaceable module. This eliminates the need to replace the entire lock during maintenance; only the worn module needs to be replaced, thus reducing costs.

[0014] This utility model provides a limit nut by providing an external thread on one end of the latch and connecting a limit nut to the threaded section of the latch, thereby limiting and protecting the connection between the latch and the lock seat, preventing accidental unlocking caused by accidental contact, improving the safety of the lock when it is locked, and thus achieving multiple protections. Attached Figure Description

[0015] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention after the limiting nut is removed; Figure 3This is a partial structural diagram of the back of the present invention; Figure 4 This is a schematic diagram of the locking tongue of this utility model; Figure 5 This is a cross-sectional view of the end face at the connection between the lock body and the lock seat of this utility model. Figure 6 This is a schematic diagram of the lock base of this utility model.

[0016] In the diagram: 1. Lock body; 2. Connector; 3. Lock tongue spring seat; 4. Lock tongue; 5. Lock seat; 6. First connecting hole; 7. Second connecting hole; 8. First fastening bolt; 9. Second fastening bolt; 10. Mounting groove; 11. External thread; 12. Limit nut; 13. Second mounting hole; 14. Locking nut; 15. First mounting hole. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0018] Please see Figure 1-6 A parachute safety lock with a multi-protection structure includes a lock body 1. One end of the lock body 1 is connected to a latch spring seat 3 via a connector 2. A latch 4 is connected to the latch spring seat 3. The other end of the lock body 1 is connected to a lock seat 5. A first mounting hole 15 is provided on one side of both the latch 4 and the lock seat 5. A mounting groove 10 is provided on the other side of both the latch 4 and the lock seat 5 opposite to the first mounting hole 15. A locking nut 14 is provided in each of the two mounting grooves 10. A second mounting hole 13 is provided at one end of the lock body 1. A first connecting hole 6 and a second connecting hole 7 are provided on the latch 4 and the lock seat 5, respectively. A first fastening bolt 8 passes through the first mounting hole 15 and the second mounting hole 13, connecting the latch spring seat 3 and the latch 4. A connecting hole 6 and a second mounting hole 13 are threadedly fastened to the locking nut 14 in the mounting groove 10. One end of the lock seat 5 and the lock body 1 are threadedly fastened to the locking nut 14 in the mounting groove 10 by passing through the first mounting hole 15, the second connecting hole 7 and the second mounting hole 13 via the second fastening bolt 9. By utilizing their mutual cooperation, the lock tongue 4 and the lock seat 5, which are the most easily worn parts of the lock, can be designed as an independent and replaceable module. This eliminates the need to replace the entire lock during maintenance, allowing only the worn module to be replaced, thus reducing costs. One end of the lock tongue 4 is provided with an external thread 11 in the circumferential direction. The external thread 11 on the lock tongue 4 is threadedly connected to a limit nut 12.

[0019] The diameter of the first mounting hole 15 is larger than the diameter of the second mounting hole 13.

[0020] The diameter of the first connecting hole 6 is the same as the diameter of the second mounting hole 13.

[0021] The diameter of the second connecting hole 7 is the same as the diameter of the second mounting hole 13.

[0022] When the limiting nut 12 is rotated to one end of the latch 4, it can fit the connection between the latch 4 and the lock seat 5, thereby limiting and protecting the connection between the latch 4 and the lock seat 5, avoiding accidental unlocking caused by accidental contact, improving the safety of the lock when it is locked, and thus achieving multiple protections.

[0023] The shapes and sizes of the latch 4 and the lock base 5 are compatible.

[0024] Among them, the first fastening bolt 8 and the second fastening bolt 9 are both internal hex bolts.

[0025] The mounting groove 10 is a hollow hexagonal structure.

[0026] The working principle and usage process of this utility model are as follows: First, the user rotates the latch 4 around the connector 2 so that it engages in the slot of the lock seat 5. When the latch 4 and the lock seat 5 are engaged, they interlock based on their own structural shape, which is the first layer of protection. One end of the latch 4 is machined with an external thread 11. After the lock is closed, the user can rotate the limiting nut 12 so that it moves along the thread towards the joint between the latch 4 and the lock seat 5. The limiting nut 12 will eventually lock the joint between the latch 4 and the lock seat 5. This action forms a huge physical barrier in the structure, preventing the latch 4 from coming off the lock seat due to accidental vibration, impact or snagging. This is the most critical second layer of protection, which limits and protects the joint between the latch 4 and the lock seat 5, avoids accidental unlocking caused by accidental contact, improves the safety when the lock is locked, and thus achieves multiple protections. Both the first fastening bolt 8 and the second fastening bolt 9 are internal hex bolts, which require special tools to operate. The locking nut 14 that matches them is hidden in the hexagonal mounting groove 10 and cannot be rotated at all. This design makes it almost impossible for the entire connection point to loosen accidentally in daily use. After the limit nut 12 is tightened, its threaded connection itself also has the characteristic of self-locking and anti-loosening, which further ensures safety. When the latch 4 or lock seat 5 wears down due to long-term use, there is no need to replace the entire expensive lock. Maintenance personnel only need to use an Allen wrench to easily loosen and remove the first fastening bolt 8 or the second fastening bolt 9, remove the worn old module such as the latch 4, replace it with a brand new module of the same specification, align the new module, insert the fastening bolt and tighten it to the specified torque. Since the locking nut 14 is always fixed in the groove of the module, there is no risk of losing small parts during the replacement process. Assembly is very simple and quick. This allows the latch 4 and lock seat 5, which are the most easily worn parts in the lock, to be designed as an independent, replaceable module. This eliminates the need to replace the entire lock during maintenance; only the worn module needs to be replaced, reducing costs. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.

[0027] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A parachute safety lock with a multi-protection structure, comprising a lock body (1), characterized in that: One end of the lock body (1) is connected to a latch spring seat (3) via a connector (2), and a latch (4) is connected to the latch spring seat (3). The other end of the lock body (1) is connected to a lock seat (5). A first mounting hole (15) is provided on one side of both the latch (4) and the lock seat (5). A mounting groove (10) is provided on the other side of both the latch (4) and the lock seat (5) opposite to the first mounting hole (15). A locking nut (14) is provided in each of the two mounting grooves (10). A second mounting hole (13) is provided at one end of the lock body (1). A first connecting hole (6) and a second connecting hole (7) are provided on the latch (4) and the lock seat (5) respectively. The locking tongue spring seat (3) and the locking tongue (4) are connected by a first fastening bolt (8) passing through the first mounting hole (15), the first connecting hole (6) and the second mounting hole (13) and threadedly fastened to the locking nut (14) in the mounting groove (10). One end of the locking seat (5) and the locking body (1) are connected by a second fastening bolt (9) passing through the first mounting hole (15), the second connecting hole (7) and the second mounting hole (13) and threadedly fastened to the locking nut (14) in the mounting groove (10). One end of the locking tongue (4) is provided with an external thread (11) in the circumferential direction. The external thread (11) section on the locking tongue (4) is threadedly connected to a limit nut (12).

2. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: The diameter of the first mounting hole (15) is larger than the diameter of the second mounting hole (13).

3. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: The diameter of the first connecting hole (6) is the same as the diameter of the second mounting hole (13).

4. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: The diameter of the second connecting hole (7) is the same as the diameter of the second mounting hole (13).

5. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: After the limiting nut (12) is rotated to one end of the locking tongue (4), the connection between the locking tongue (4) and the locking seat (5) can be fitted into it.

6. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: The shape and size of the latch (4) and the lock seat (5) are compatible.

7. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: Both the first fastening bolt (8) and the second fastening bolt (9) are internal hex bolts.

8. The parachute safety lock with a multi-protection structure according to claim 1, characterized in that: The mounting groove (10) is a hollow hexagonal structure.

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