TWM506212U - Three-stage safety hook - Google Patents

Description

Three-section safety hook

The novel system provides a three-stage safety hook, in particular, a novel technique for releasing the lock hole by sequentially releasing the lock lever through the operation lever → pulling the lock lever to release the limit portion → forcing the lock lever to rotate toward the hook hole, thereby opening the hook hole. With this new design, the decoupling concerns are further minimized.

In rock climbing, mountaineering, construction. . In an environment where lifting is required, safety hooks and safety belts must be used to ensure the safety of personnel.

According to the US Patent No. 81177721, the invention discloses a state-of-the-art safety hook. However, the patent has the following shortcomings to be improved:

1. In the previous patent case, the opening hook hole for controlling whether the lock lever can be rotated simply by operating the lever is still in the category of the two-stage safety hook. Therefore, for the high-altitude use environment with multiple changes, the touch lever can be decoupled. Concerns, it is difficult to form a protective role.

2. When the front lock lever of the patent is subjected to the side impact force, the side impact force can only be transmitted to the hook body at a single point, which is easy to stress concentration, and the length of the lock rod is greatly limited, so the hook mouth cannot be correspondingly enlarged. In this way, when we engage in hooking or unhooking, we can't get in place once, which increases the trouble of operation.

The creator has carefully researched and improved the above-mentioned shortcomings of the patent, and finally developed the novel.

The present invention provides a three-stage safety hook, which comprises at least: a hook body having a hook hole extending through the thickness, and a hook body having a hook opening communicating with the inner and outer sides of the hook hole, the hook body being at the one end edge of the hook opening a spacing hole having a through hole, a first groove, and a limiting portion at a further end of the hook opening; a locking rod having a first bolt at one end thereof movable along the first slot, the first bolt capable of Moving along the first slot between the first and second positions, when the first pin moves to the first position, the other end of the lock bar is positioned at the limiting portion to close the hook opening, when the first pin moves to the second position At the same time, the other end of the lock lever can be interlocked at the position of the release limit portion; a first spring is actuated to hold the first bolt in the first position, and the other end of the actuation lock rod is kept positioned at the limit portion; The lever of the latching portion is pivotally connected to the shaft hole by a main shaft for swinging between the third to fourth positions, and when the lever is in the third position, the latching portion limits the first bolt to the first position And a second spring that is held in the third position to ensure that the lock bar locks the hook; if the hook is to be opened When the lever is operated to swing to the fourth position, the lock lever can be pulled to move the first bolt to the second position, and then the lock lever is rotated toward the hook hole to form a three-stage opening hook pattern. .

Therefore, the new three-stage opening hook mode can further enhance the safety of the new type of use, which is sufficient for the high-altitude use environment of multiple changes to make it accidentally touched. The decoupling concern is minimized. In addition, when the locking bar receives the side impact force, the locking bar can transmit the stress to the hook body through the limiting portion and the first bolt, so the present invention has the advantage of stress dispersion. Under the structural safety requirements, effectively increase the hook opening and lengthen the locking bar to make the hooking or unhooking operation smoother and faster.

10‧‧‧ hook body

10A‧‧‧ front

10B‧‧‧Back

10C‧‧‧ thickness

11‧‧‧ hook hole

110‧‧‧ hook mouth

12‧‧‧ 容容

13‧‧‧first slot

131‧‧‧First position

132‧‧‧second position

14‧‧‧Axis hole

15A‧‧‧First fixed tip

15B‧‧‧Second fixed tip

16‧‧‧second trough

17‧‧‧ hanging holes

18‧‧‧Limited

181‧‧‧ card slot

182‧‧‧ guiding slot

20‧‧‧Lock lever

21‧‧‧ lock plate

22‧‧‧ side panels

221‧‧‧ first hole

222‧‧‧ card block

223‧‧‧ second hole

23‧‧‧First bolt

24‧‧‧second bolt

25‧‧‧Assemble slot

26‧‧‧Turning Department

30‧‧‧First spring

31‧‧‧First presser foot

32‧‧‧Second presser foot

40‧‧‧Control lever

41‧‧‧End plate

42‧‧‧ visor

43‧‧‧ third hole

44‧‧‧ Spindle

45‧‧‧Card Department

451‧‧‧

50‧‧‧Second spring

51‧‧‧ Third presser foot

52‧‧‧Fourth presser foot

The first figure is an exploded view of the novel.

The second figure is a schematic view of the first combination of the partial control lever to the hook body.

The third figure is a schematic view of the combination of the present invention.

The fourth figure is a schematic diagram of the partial section lock bar after the combination of the present invention.

The fifth figure is a schematic diagram of the partial section lock lever and the control rod after the combination of the present invention.

The sixth figure is a schematic diagram of the first stage of the new pressing lever.

The seventh figure is a schematic diagram of the second stage of the new pulling lock bar.

The eighth figure is a schematic diagram of the third step of opening the hook hole by the new type of rotating lock bar.

Referring to Figures 1-8, the present invention includes at least a hook body 10 defining a thickness 10C between the front face 10A and the rear face 10B and having a hook hole 11 extending through the thickness 10C, and the hook body 10 The side has a hook 110 connecting the inner and outer surfaces of the hook hole 11 , and the other side of the hook body 10 is recessed with a groove 12 extending through the thickness 10C; the hook body 10 is spaced apart from the first slot of the thickness 10C at one end of the hook opening 110 13. A shaft hole 14 and a protruding surface 10A, 10B between the shaft hole 14 and the first groove 13 The first fixed tip 15A and the second fixed tip 15B, the first groove 13 defines a first position 131 close to the hook opening 110, and a second position 132 away from the hook opening 110, and the front face 10A and the rear face 10B of the hook body 10 are further A symmetrical recess having a center at the second position 132 is provided with a second slot 16 communicating with the hook hole 11. Further, the bottom edge of the hook body 10 is provided with a hanging hole 17 penetrating the thickness 10C, and the hanging hole 17 is provided for the seat belt In addition, the two sides 10A, 10B of the hook body 10 are more symmetrical, and a limiting portion 18 is recessed on the other end edge of the hook opening 110. The limiting portion 18 is formed by the intersecting slot 181 and the guiding slot 182. The card slot 181 is axially matched with the first slot 13, and the guiding slot 182 is between the oblique connecting slot 181 and the hooking hole 11; a locking lever 20 having a closing hook 110 The lock plate 21, the front and rear sides of the lock plate 21 are more vertically symmetrically folded with a side plate 22 for forming a frame body having a ㄇ-shaped cross section, and one end edge of the two side plates 22 is provided with a communication first groove 13 The first hole 221, the first hole 221 and the first slot 13 are inserted through the first pin 23, so that the lock bar 20 can drive the first pin 23 along the first slot 13 between the first position 131 and the second position 132. The lock bar 20 is folded at a free end on the two side plates 22 to form a block 222. When the first pin 23 is in the first position 131, the lock bar 20 is interlocked with the card block 222 and positioned on the card through the guiding slot 182. In the slot 181, the lock lever 20 is used to lock the hook 110. However, when the first bolt 23 is moved to the second position 132, the lock lever 20 moves the latch block 222 to the guide slot 182, so that the lock lever 20 is further The end is at a position of the release limiting portion 18 for opening the hook opening 110 that can swing toward the hook hole 11 along the guiding groove 182; In addition, the two side plates 22 are symmetrically disposed with a second hole 223 for respectively mounting the second pin 24, and when the first pin 23 is located at the first position 131, the second pin 24 is located in the hook hole 11, but When a pin 23 is located at the second position 132, the two second pins 24 are oppositely located at a position capable of cutting into the second slot 16, and when the lock lever 20 is pivoted toward the hook hole 11 at the second position 132, the second The slot 16 can limit the second pin 24 to swing about the second position 132, so that the lock bar 20 can stably open the hook port 110 without colliding with the wall surface of the hook hole 11; The assembly plate 25 is disposed on the lock plate 21 and the two side plates 22 respectively, so that the assembly groove 25 is mounted on the triggering portion 26 of the protruding lock plate 21 for providing the user to conveniently use the lock bar 20 and the rotary lock bar 20 to be used. a first spring 30, which is wound around the first pin 23, and has a first presser foot 31 elastically abutting against the first fixed tip 15A, and another device capable of pushing the lock plate with a predetermined elastic force. The second presser foot 32 of the inner surface of the second spring 30 is assembled between the hook body 10 and the lock lever 20 for actuating the first plug 23 to be held in the first position 131, and the synchronous actuating block The 222 is held in the card slot 181; a control rod 40 having an end plate 41 matching the thickness 10C, and a front and rear sides of the end plate 41 are more symmetrically folded with a shutter 42 to form a frame of the 断面-shaped section The end plate 41 is located outside the receiving slot 12, and the two shielding plates 42 are correspondingly inserted between the two side plates 22 and the two faces 10A, 10B of the hook body 10. The two shielding plates 42 are disposed at positions corresponding to the axial holes 14. The third hole 43 is configured to provide a main shaft 44 extending through the coupling shaft hole 14 and the third hole 43, so that the control rod 40 can swing between the third position and the fourth position with the main shaft 44 as a center; the two shutters 42 The latching portion 45 of the heart-shaped slot is symmetrically inserted into the latching portion 45, and when the lever 40 is in the third position, the slot 451 on the side of the latching portion 45 can be actuated. The first pin 23 is restrained from the first position 131. However, when the lever 40 is in the fourth position, the latch portion 45 can be actuated to release the first pin 23, so that the first pin 23 can be along the latch portion 45. The other side moves between the first position 131 and the second position 132; and a second spring 50 is wound around the two ends of the shaft hole 14 and is elastically abutted against the second fixed end 15B. The third presser foot 51 is further connected with a fourth presser foot 52 for pushing the inner surface of the end plate 41 with a predetermined elastic force, so that the second spring 50 is assembled between the hook body 10 and the control rod 50 for actuation. The lever 50 is held in the third position to ensure that the lock lever 20 is indeed in the position of the latching hook 110.

When the present invention is to operate the lock lever 20 and open the hook 110, The first stage of operation requires a pressure lever 40 as shown in FIG. 6 to overcome the actuation lever 40 of the second spring 50 to swing to the fourth position, so that the latch portion 45 releases the first bolt 23, following Therefore, the second operation lock lever 20 can be performed as shown in FIG. 7, so that the lock lever 20 moves the first bolt 23 to the second position 132, and the block 222 moves to the guide groove 182. Finally, the first The three-stage operation, as shown in the eighth figure, the forced lock lever 20 overcomes the preset spring force of the first spring 30, so that the lock lever 20 can be rotated counterclockwise toward the hook hole 11 to escape the guide slot 182 for completing the three sections. The hook port 110 operation mode is turned on.

Therefore, the present invention has at least the following advancements:

1. The new model must be operated through the three stages of the lever 40 and the lock lever 20. The mode can open the hook hole, which can further prevent the problem of decoupling caused by the wrong touch rod, and strengthen the safety protection effect.

2. The lock bar 20 of the present type of lock bar 20 is subjected to a side impact force. One end transmits stress to the hook body 10 through the first plug 23, and the other end transmits the stress to the hook body 10 through the block 222, and the first spring 30 can absorb a part of the stress, so the present invention has stress. The advantage of dispersion is to effectively increase the hook opening 110 and the lengthening locking rod 20 in accordance with the structural safety requirements, so as to make the hooking or unhooking operation smoother and faster.

In summary, the overall structural features of this creation can be said to be unprecedented in the existing structure, and it is a rather outstanding and excellent design, and no similar creation or disclosure is found in similar products. Published, it is in line with the application requirements of the new patent, and is submitted in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited by the scope of the present invention, that is, the equal variation and modification of the patent application scope of the present invention is within the scope of the present creation. .

10‧‧‧ hook body

10A‧‧‧ front

10B‧‧‧Back

10C‧‧‧ thickness

11‧‧‧ hook hole

110‧‧‧ hook mouth

12‧‧‧ 容容

13‧‧‧first slot

131‧‧‧First position

132‧‧‧second position

14‧‧‧Axis hole

15A‧‧‧First fixed tip

15B‧‧‧Second fixed tip

16‧‧‧second trough

17‧‧‧ hanging holes

18‧‧‧Limited

181‧‧‧ card slot

182‧‧‧ guiding slot

20‧‧‧Lock lever

21‧‧‧ lock plate

22‧‧‧ side panels

221‧‧‧ first hole

222‧‧‧ card block

223‧‧‧ second hole

23‧‧‧First bolt

24‧‧‧second bolt

25‧‧‧Assemble slot

26‧‧‧Turning Department

30‧‧‧First spring

31‧‧‧First presser foot

32‧‧‧Second presser foot

40‧‧‧Control lever

42‧‧‧ visor

43‧‧‧ third hole

44‧‧‧ Spindle

45‧‧‧Card Department

451‧‧‧

50‧‧‧Second spring

51‧‧‧ Third presser foot

52‧‧‧Fourth presser foot

Claims (9)

A three-section safety hook includes at least a hook body having a hook hole extending through a thickness, the hook hole further having a hook opening on a side of the hook body, the hook body being provided with a through thickness at an edge of the hook opening The shaft hole and the first slot are further provided with a limiting portion at the other end edge of the hook; a locking rod has a first bolt extending through the first slot at one end thereof, so that the locking rod can drive the first bolt along the first slot And moving between the first position and the second position, when the first pin is in the first position, the free end of the lock bar is positioned at the limiting portion, and when the first pin is in the second position, the free end of the lock bar is released. a position of the limiting portion; a first spring is mounted between the hook body and the lock bar for actuating the first bolt to be held in the first position, and the free end of the actuating lock lever is retained at the limiting portion; The lever is pivotally connected to the shaft hole by a main shaft for swinging between the third position and the fourth position. When the lever is in the third position, the latch portion limits the first bolt to the first position, but The first bolt can be released when the lever is in the fourth position; and a second spring is mounted between the hook body and the lever to actuate The rod is held in the third position to ensure that the lock rod locks the hook; if the hook is to be opened, the lever must be operated to swing to the fourth position, so that the lock rod can be pulled to move the first bolt to the second position, The forced lock lever is rotated toward the hook hole to form a three-stage open hook mode. The three-segment safety hook according to claim 1, wherein the hook body defines a first position close to the hook opening in the first groove, a second position away from the hook opening, and the hook body is further centered on the second position. a second slot connecting the hook hole; the lock rod is further mounted with a second bolt, and when the first bolt is in the first position, the second bolt is relatively located in the hook hole, but when the first bolt When in the second position, the second tether is located at a position that can be cut into the second slot, and the second slot can limit the second pin when the lock bar swings toward the hook hole at the center of the second position. The three-stage safety hook according to claim 2, wherein the lock bar has a lock plate capable of closing the hook mouth, and the front and rear sides of the lock plate are more symmetrically folded with one side plate, and one end edges of the two side plates are provided with the first bolt The first hole is mounted and a second hole for the second bolt is provided at an appropriate position. The three-segment safety hook according to claim 1, wherein the hook system defines a thickness between the front and the rear, and the front and the rear are more symmetrically disposed with a limiting portion at the other end edge of the hook opening, and the limiting portion is The intersecting card slot and the guiding groove are formed so that the card slot is matched with the axial direction of the first slot, and the guiding slot is obliquely connected between the card slot and the hook hole; the lock bar has a lock capable of closing the hook The front and rear sides of the lock plate are more symmetrically folded with one side plate, and the one end edges of the two side plates are provided with a first hole for the first bolt, and the other end of the lock bar is oppositely disposed with a card block. When the first bolt is in the first position, the interlocking block can be positioned in the card slot through the guiding slot for locking the hook of the locking bar, but when the locking bar is linked to the first pin to the second position, the card The block moves in the guiding groove so that the free end of the locking bar is in the release limit position. The three-section safety hook according to claim 3 or 4, wherein the hook system defines a thickness between the front and the rear, and a first fixing tip protruding from the front and the rear between the shaft hole and the first groove; A spring ring is wound around the first pin, and a first presser foot elastically abutting the first fixed pin is attached, and a second presser foot for pushing the lock plate with a predetermined elastic force is additionally connected. 3 or 4 of the three-section safety hook, the control rod is outside the hook The side plate is provided with an end plate, and the front plate and the rear side of the end plate are more symmetrically folded with a shielding plate, and the two shielding plates are provided with a third hole for the spindle to be installed at a position corresponding to the shaft hole. The three-section safety hook according to claim 6, wherein the two shielding plates are symmetrically disposed with the locking portion of the heart-shaped groove, so that the two ends of the first bolt are inserted into the locking portion, and when the lever is in the third position, The slot of one side of the latching portion can be restrained to limit the first bolt to the first position. When the lever is in the fourth position, the slot can be actuated to release the first bolt, so that the first bolt can be along the click portion The other side moves between the first position and the second position. The three-stage safety hook according to claim 6, wherein the hook system defines a thickness between the front and the rear, and a second fixing tip protruding from the front and the rear between the shaft hole and the first groove; the second spring The collar is wound around the two ends of the shaft hole, and a third presser foot elastically abutting against the second fixed end is connected, and a fourth presser foot capable of pushing the end plate with a predetermined elastic force is additionally connected. The three-section safety hook of 3 or 4 has a locking portion mounted on the lock lever for providing a pull lever and a rotary lock lever.