A double-spring type unhooking structure

Abstract

This utility model relates to the field of marine spring tow hook technology, specifically a double-spring release structure, including: a hook connected to a shaft core, and a lower mounting mechanism installed on the spring tow hook body; the upper mounting mechanism has an upper circular hole; the lower mounting mechanism has a lower circular hole; the advantages are: by actuating the cylinder to push the locking block, one end of the locking block is disengaged from the locking groove, thus releasing the locking of the shaft core, and the shaft core can slide along the upper through groove and slide out along the lower through groove, which can achieve quick release without manual release, simple operation, and easy for personnel to use. Moreover, by unscrewing and removing the bolts on the upper sliding block and the lower spring tow hook body, the upper and lower mounting mechanisms can be disassembled, and the spring spring can be removed and replaced with a new spring spring, which facilitates the later maintenance of the device without replacing the entire spring tow hook body, reducing the cost of use.

Description

Technical Field

[0001] This utility model relates to the field of ship spring tow hook technology, specifically a double-spring unhooking structure. Background Technology

[0002] A spring tow hook, equipped with a buffer and release mechanism, is a specialized hook used to secure towlines. It is used on tugboats to attach towlines and facilitate release. It reliably connects to the towed vessel or floating body for towing and transmits towing force to the main hull structure via connecting components such as tow bar frames, tow hook mounts, or tow bar plates.

[0003] In the prior art, the spring in the spring hook acts as a buffer and needs to work in conjunction with the spring shaft.

[0004] However, traditional transmission spring hooks still require manual disengagement, which is complicated and inconvenient for practical use. Therefore, this utility model proposes a double-spring disengagement structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a double-spring release structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-spring type release structure, comprising: a hook, the hook being connected to a shaft core, one end of the shaft core being engaged in a lower through groove opened on the spring tow hook body, a lower mounting mechanism being installed on the spring tow hook body, an upper sliding block being engaged on the spring tow hook body, an upper mounting mechanism being installed on the upper sliding block, a cylinder being provided on the upper sliding block, the telescopic end of the cylinder being connected to the locking block, one end of the locking block being engaged in a locking groove opened on the side of the shaft core, and one end of the shaft core being engaged in an upper through groove opened on the upper sliding block;

[0007] The upper mounting mechanism has an upper circular hole, in which a mounting cylinder is inserted. The mounting cylinder is connected to a spring seat, and a spring spring is fixedly installed on the spring seat.

[0008] The lower mounting mechanism has a lower circular hole.

[0009] Preferably, the lower mounting mechanism has a lower circular hole, which is a circular hole structure. A mounting cylinder is inserted into the lower circular hole and is fixedly connected to the spring seat. The spring seat is a circular plate structure, and a spring is fixedly installed on the spring seat. The other end of the spring is fixedly connected to the spring seat.

[0010] Preferably, the lower mounting mechanism is a combination of an "I"-shaped plate and a square plate. A limiting block is fixedly connected to the lower mounting mechanism. The limiting block has a "convex" plate-shaped structure. Rubber pads are fixedly connected to both the upper and lower sides of the limiting block. One end of the limiting block is stuck in the limiting groove. The limiting block can slide along the limiting groove, which has a square groove-shaped structure.

[0011] Preferably, the lower end of the lower mounting mechanism can be inserted into the lower mounting groove opened on the spring hook body, the lower circular hole opened on the lower mounting mechanism is aligned with the lower mounting hole opened on the spring hook body, and the bolt passes through the lower mounting hole opened on the spring hook body and is threadedly connected to the mounting cylinder.

[0012] Preferably, the upper sliding block has an "I" shaped plate structure, a cylinder is fixedly installed on the upper sliding block, and a locking block is fixedly installed on the telescopic end of the cylinder. The locking block has a "convex" shaped plate structure, one end of the locking block is locked in a slot opened on the shaft core, and one end of the shaft core is locked in an upper through groove opened on the upper sliding block. The upper through groove has a circular groove structure.

[0013] Preferably, the upper mounting mechanism is a combination of an "I"-shaped plate and a square plate. The upper mounting mechanism has a limit groove. One end of the upper mounting mechanism is locked in the upper mounting groove on the upper sliding block. The upper circular hole on the upper mounting mechanism is aligned with the upper mounting hole on the upper sliding block. The bolt passes through the upper mounting hole and is threadedly connected to the mounting cylinder inside the upper circular hole.

[0014] Preferably, one end of the shaft is engaged in a lower through groove on the spring hook body, the shaft can slide along the lower through groove, and a hook is rotatably connected to the shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention proposes a double-spring release structure. By actuating a cylinder to push a locking block, one end of the locking block disengages from the locking groove, thus releasing the lock on the shaft. The shaft slides along the upper through groove and can then slide out along the lower through groove, achieving rapid release without manual intervention. This simple operation makes it easy for personnel to use. Furthermore, by unscrewing and removing the bolts on the upper sliding block and the lower spring hook body, the upper and lower mounting mechanisms can be disassembled, allowing the springs to be removed and replaced with new ones. This facilitates future maintenance of the device without replacing the entire spring hook body, reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0018] Figure 2 This is an installation diagram of the present invention under normal use;

[0019] Figure 3 This is a schematic diagram showing the disassembled parts of the device structure of this utility model;

[0020] Figure 4 This is a partial structural diagram of the device of this utility model;

[0021] Figure 5 This is a schematic diagram of part of the structure of the device of this utility model;

[0022] Figure 6 This is a partial schematic diagram of the structure of the device of this utility model.

[0023] In the diagram: 1. Spring hook body; 2. Hook; 3. Shaft core; 4. Lower through groove; 5. Upper through groove; 6. Slot; 7. Slot block; 8. Cylinder; 9. Upper sliding block; 10. Upper mounting groove; 11. Upper mounting mechanism; 12. Limiting groove; 13. Spring seat; 14. Elastic spring; 15. Limiting block; 16. Rubber pad; 17. Lower mounting mechanism; 18. Mounting cylinder; 19. Lower round hole; 20. Upper round hole; 21. Lower mounting groove; 22. Lower mounting hole; 23. Upper mounting hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] Please see Figures 1 to 6 This utility model provides a technical solution: a double-spring type release structure, including: a hook 2, the hook 2 is connected to a shaft core 3, one end of the shaft core 3 is locked in a lower through groove 4 opened on the spring tow hook body 1, a lower mounting mechanism 17 is installed on the spring tow hook body 1, an upper sliding block 9 is locked on the spring tow hook body 1, an upper mounting mechanism 11 is installed on the upper sliding block 9, a cylinder 8 is provided on the upper sliding block 9, the telescopic end of the cylinder 8 is connected to the locking block 7, one end of the locking block 7 is locked in a locking groove 6 opened on the side of the shaft core 3, and one end of the shaft core 3 is locked in an upper through groove 5 opened on the upper sliding block 9; the upper mounting mechanism 11 has an upper circular hole 20, an mounting cylinder 18 is locked in the upper circular hole 20, the mounting cylinder 18 is connected to a spring seat 13, and a spring spring 14 is fixedly installed on the spring seat 13; the lower mounting mechanism 17 has a lower circular hole 19.

[0027] In practical use, by activating cylinder 8 to push block 7, one end of block 7 is disengaged from slot 6, thus releasing the lock on shaft 3. Shaft 3 can slide along upper through slot 5 and slide out along lower through slot 4, achieving quick unhooking.

[0028] Example 2

[0029] Based on Embodiment 1, an upper sliding block 9 is provided for ease of use. The upper sliding block 9 has an "I" shaped plate structure. A cylinder 8 is fixedly installed on the upper sliding block 9. A locking block 7 is fixedly installed on the telescopic end of the cylinder 8. The locking block 7 has a "convex" shaped plate structure. One end of the locking block 7 is locked in the slot 6 opened on the shaft core 3, and one end of the shaft core 3 is locked in the upper through groove 5 opened on the upper sliding block 9. The upper through groove 5 has a circular groove structure, and the slot 6 has a square groove structure. By activating the cylinder 8 to push the locking block 7, one end of the locking block 7 is disengaged from the slot 6, thereby releasing the lock on the shaft core 3. The shaft core 3 then slides along the upper through groove 5.

[0030] One end of the shaft core 3 is engaged in the lower through groove 4 opened on the spring tow hook body 1. The shaft core 3 can slide along the lower through groove 4. A hook 2 is rotatably connected to the shaft core 3. The hook 2 is fixedly connected to the shaft core 3 through the middle rotatable part that is fixedly connected to the shaft core 3. The shaft core 3 can slide out along the lower through groove 4. Through the cooperation of the above structures, the spring tow hook body 1 can achieve quick unhooking without manual unhooking. The operation is simple and convenient for personnel to use.

[0031] Example 3

[0032] Based on Embodiment 2, a lower installation mechanism 17 is provided to facilitate subsequent maintenance. The lower installation mechanism 17 is a combination of an "I"-shaped plate and a square plate. A limiting block 15 is fixedly connected to the lower installation mechanism 17. The limiting block 15 has a "convex" plate-shaped structure. Rubber pads 16 are fixedly connected to both the upper and lower surfaces of the limiting block 15. One end of the limiting block 15 is stuck in the limiting groove 12. The limiting block 15 can slide along the limiting groove 12. The limiting groove 12 has a square groove-shaped structure. The rubber pads 16 have a "convex" plate-shaped structure. The rubber pads 16 can provide cushioning to avoid rigid collision between the limiting block 15 and the upper installation mechanism 11. By allowing the limiting block 15 to slide along the limiting groove 12, the upper installation mechanism 11 and the lower installation mechanism 17 are slidably connected so as not to affect the normal operation of the spring spring 14.

[0033] The lower end of the lower mounting mechanism 17 can be snapped into the lower mounting groove 21 formed on the main body 1 of the spring tow hook. The lower circular hole 19 formed on the lower mounting mechanism 17 is exactly aligned with the lower mounting hole 22 formed on the main body 1 of the spring tow hook. A bolt passes through the lower mounting hole 22 formed on the main body 1 of the spring tow hook and is threadedly connected to the mounting cylinder 18. The lower mounting groove 21 has a "convex" - shaped groove structure. Personnel can remove the bolt on the main body 1 of the spring tow hook by turning it.

[0034] The upper mounting mechanism 11 is a combination of an "I" - shaped plate and a square plate. A limiting groove 12 is formed on the upper mounting mechanism 11. One end of the upper mounting mechanism 11 is snapped into the upper mounting groove 10 formed on the upper sliding block 9. The upper circular hole 20 formed on the upper mounting mechanism 11 is exactly aligned with the upper mounting hole 23 formed on the upper sliding block 9. A bolt passes through the upper mounting hole 23 and is threadedly connected to the mounting cylinder 18 in the upper circular hole 20. The upper mounting groove 10 has a "convex" - shaped groove structure. By turning and removing the bolt on the upper sliding block 9, the locking of the upper mounting mechanism 11 and the lower mounting mechanism 17 is released. Personnel can slide the upper mounting mechanism 11 and the lower mounting mechanism 17 out of the upper mounting groove 10 and the lower mounting groove 21. All parts involved in this device are made of high - strength materials and are all subjected to anti - corrosion treatment, which are all prior arts and will not be described here.

[0035] The lower circular hole 19 is formed on the lower mounting mechanism 17. The lower circular hole 19 has a circular hole structure. An installation cylinder 18 is clamped in the lower circular hole 19. The installation cylinder 18 is fixedly connected to the spring seat 13. The spring seat 13 has a circular plate - like structure. A resilient spring 14 is fixedly installed on the spring seat 13. The other end of the resilient spring 14 is fixedly connected to the spring seat 13. Then, the upper mounting mechanism 11 and the lower mounting mechanism 17 can be pulled, so that the installation cylinder 18 on the spring seat 13 is disengaged from the upper circular hole 20 formed on the upper mounting mechanism 11 and the lower circular hole 19 formed on the lower mounting mechanism 17. Then, the resilient spring 14 can be removed and a new resilient spring 14 can be replaced. Then, the installation can be carried out through the reverse steps, which is convenient for personnel to maintain the device later, without replacing the entire main body 1 of the spring tow hook, reducing the usage cost.

[0036] Working principle: During actual use, by starting the air cylinder 8 to push the block 7, one end of the block 7 is disengaged from the card slot 6, and the locking of the shaft core 3 is released. The shaft core 3 slides along the upper through - slot 5 and can slide out along the lower through - slot 4, realizing quick unhooking without manual unhooking by personnel. The operation is simple and convenient for personnel to use. And by turning and removing the bolts on the upper sliding block 9 and the lower main body 1 of the spring tow hook, the upper mounting mechanism 11 and the lower mounting mechanism 17 can be disassembled. Then, the resilient spring 14 can be removed and a new resilient spring 14 can be replaced, which is convenient for personnel to maintain the device later, without replacing the entire main body 1 of the spring tow hook, reducing the usage cost.

[0037] 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 double-spring release mechanism, comprising: Hook (2), hook (2) is connected to shaft (3), one end of shaft (3) is stuck in the lower through groove (4) opened on the spring tow hook body (1), characterized in that: the spring tow hook body (1) is equipped with a lower mounting mechanism (17), the spring tow hook body (1) is stuck with an upper sliding block (9), the upper sliding block (9) is equipped with an upper mounting mechanism (11), the upper sliding block (9) is provided with a cylinder (8), the telescopic end of the cylinder (8) is connected to the locking block (7), one end of the locking block (7) is stuck in the locking groove (6) opened on the side of shaft (3), and one end of shaft (3) is stuck in the upper through groove (5) opened on the upper sliding block (9); The upper mounting mechanism (11) has an upper circular hole (20) and an mounting cylinder (18) is inserted in the upper circular hole (20). The mounting cylinder (18) is connected to the spring seat (13) and a spring spring (14) is fixedly installed on the spring seat (13). The lower mounting mechanism (17) has a lower circular hole (19) on it.

2. The double-spring release structure according to claim 1, characterized in that: The lower mounting mechanism (17) has a lower circular hole (19), which is a circular hole structure. An mounting cylinder (18) is inserted in the lower circular hole (19). The mounting cylinder (18) is fixedly connected to the spring seat (13). The spring seat (13) is a circular plate structure. A spring spring (14) is fixedly installed on the spring seat (13). The other end of the spring spring (14) is fixedly connected to the spring seat (13).

3. The double-spring release structure according to claim 1, characterized in that: The lower mounting mechanism (17) is a combination of an "I" shaped plate and a square plate. A limiting block (15) is fixedly connected to the lower mounting mechanism (17). The limiting block (15) has a "convex" plate-shaped structure. Rubber pads (16) are fixedly connected to both the upper and lower sides of the limiting block (15). One end of the limiting block (15) is stuck in the limiting groove (12). The limiting block (15) can slide along the limiting groove (12). The limiting groove (12) has a square groove-shaped structure.

4. The double-spring release structure according to claim 1, characterized in that: The lower end of the lower mounting mechanism (17) can be inserted into the lower mounting groove (21) opened on the spring tow hook body (1). The lower circular hole (19) opened on the lower mounting mechanism (17) is aligned with the lower mounting hole (22) opened on the spring tow hook body (1). The bolt passes through the lower mounting hole (22) opened on the spring tow hook body (1) and is threadedly connected to the mounting cylinder (18).

5. The double-spring release structure according to claim 1, characterized in that: The upper sliding block (9) has an "I" shaped plate structure. A cylinder (8) is fixedly installed on the upper sliding block (9). A locking block (7) is fixedly installed on the telescopic end of the cylinder (8). The locking block (7) has a "convex" shaped plate structure. One end of the locking block (7) is locked in the slot (6) opened on the shaft core (3). One end of the shaft core (3) is locked in the upper through groove (5) opened on the upper sliding block (9). The upper through groove (5) has a circular groove structure.

6. The double-spring release structure according to claim 1, characterized in that: The upper mounting mechanism (11) is a combination of an "I" shaped plate and a square plate. The upper mounting mechanism (11) has a limiting groove (12). One end of the upper mounting mechanism (11) is stuck in the upper mounting groove (10) on the upper sliding block (9). The upper round hole (20) on the upper mounting mechanism (11) is aligned with the upper mounting hole (23) on the upper sliding block (9). The bolt passes through the upper mounting hole (23) and is threadedly connected to the mounting cylinder (18) in the upper round hole (20).

7. The double-spring release structure according to claim 1, characterized in that: One end of the shaft core (3) is engaged in the lower through groove (4) opened on the spring tow hook body (1). The shaft core (3) can slide along the lower through groove (4). A hook (2) is rotatably connected to the shaft core (3).

Images