JP3170942U - Safety hook - Google Patents

Abstract

A safety hook capable of preventing erroneous pressing is provided. A safety hook according to the present invention includes a bowl-shaped main body, a retainer, and a pressing plate. The saddle-shaped body 10 has an opening 11. The retainer 20 has an extension plate 21 that is rotatably coupled to the opening 11 and extends so as to straddle the opening 11 of the bowl-shaped main body 10. The extension plate 21 has a sliding groove 211 and a movable pin 212. The movable pin 211 is fitted into the through hole 12 of the bowl-shaped main body 10. The holding plate 30 is provided on the side opposite to the opening 11 of the bowl-shaped main body 10, and a pin 31 slidable through the sliding groove 211 passes therethrough. [Selection] Figure 2

Description

  The present invention relates to a safety hook, and more particularly to a safety hook with a safety tenon.

  Workers working at heights tie a special rope to their body and attach it to a safety hook according to safety measures and regulations. As a result, in the event of an emergency, it is supported by a safety hook to ensure the life safety of the worker. A conventional safety hook (shown in FIG. 1) includes a main body 1, a pressing plate 2, and a retainer 3. A sliding groove 4 is provided on the retainer 3, and a slidable pin 5 is provided on the holding plate 2 inside the sliding groove 4. By pushing the pressing plate 2, the pin 5 is driven to slide inside the sliding groove 4. This makes it convenient to hang or remove the rope simply by pushing the retainer 3.

  However, when the pressing plate 2 of the conventional safety hook is pressed by an inappropriate external force or is pressed by mistake, the retainer 3 is opened, causing the rope to come out, and the operator of the hanging height work It may pose a danger to life safety. Therefore, it is necessary to improve the safety hook.

  In order to solve the above-described problem, an object of the present invention is to provide a safety hook capable of preventing erroneous pressing.

  In order to achieve the above object, a safety hook according to the present invention includes a bowl-shaped main body, a retainer, and a pressing plate. The saddle-shaped main body has an opening and a through hole. The retainer has an extension plate that is rotatably connected to the opening of the bowl-shaped body and extends so as to straddle the opening of the bowl-shaped body. The extension plate has a sliding groove and a movable pin. The movable pin can be fitted into the through hole of the bowl-shaped main body. The pressing plate is provided on the opposite side of the opening of the bowl-shaped main body, and a pin slidable through the sliding groove passes therethrough.

(Effect of device)
The first effect of the present invention is to prevent the rope from coming out by driving the retainer by erroneously pressing the pressing plate during use. Thereby, a 2nd safety measure can be comprised and a user's life safety can be ensured.

  The second effect of the present invention is that the operation is convenient due to the movable pin of the safety hook according to the present invention. In addition, it has high safety and does not move due to the impact of external force or the touch of the operator when used.

  The third effect of the present invention is that the safety nut screwed to the thread of the presser is rotated and adjusted in position by the safety hook removing device according to the present invention, and comes into contact with the removal table. Thereby, it is possible to prevent the pressing tool from being pressed unexpectedly or to release the safety nut unexpectedly, and the detaching device and the latch can be quickly removed and replaced.

It is a front view of the conventional safety hook. 1 is an exploded perspective view of a safety hook according to an embodiment of the present invention. 1 is a perspective view of a safety hook according to an embodiment of the present invention. It is operation | movement schematic (the 1) of the fixing tool of the safety hook by one Embodiment of this invention. It is operation | movement schematic (the 2) of the fixing tool of the safety hook by one Embodiment of this invention. It is the schematic diagram (the 1) of the safety hook by one Embodiment of this invention. It is a schematic diagram (the 2) of the safety hook by one Embodiment of this invention. It is a schematic diagram (the 3) of the safety hook by one Embodiment of this invention. It is a mimetic diagram showing the state where the safety nut of the safety hook by one embodiment of the present invention was fastened. It is a schematic diagram which shows the state which the safety nut of the safety hook by one Embodiment of this invention loosened. It is a schematic diagram which shows the state by which the pressing tool of the safety hook by one Embodiment of this invention was pressed down.

Hereinafter, a safety hook according to an embodiment of the present invention will be described with reference to the drawings.
(One embodiment)
Please refer to FIG. The safety hook according to the present invention mainly includes a bowl-shaped main body 10, a retainer 20, and a pressing plate 30. The saddle-shaped main body 10 has an opening 11 and a through hole 12. The retainer 20 has an extension plate 21 that is rotatably coupled to the opening 11 and extends so as to straddle the opening 11 of the bowl-shaped main body 10. The extension plate 21 has a sliding groove 211 and a movable pin 212. The movable pin 212 can be fitted into the through hole 12 of the bowl-shaped main body 10.

  The safety hook further comprises a pin receiver. The movable pin 212 passes through the pin receiver 50. The pin receiver 50 is provided with at least one restriction groove 51 having an inclined surface on the inner wall. The movable pin 212 is provided with a fixture 213 slidable along the slope of the restriction groove 51 at one end. Further, the pin receiver 50 has a mounting portion 53 formed so as to protrude from the inner wall, and a screwed lid 52 that is rotatably closed on the outer wall. The screwed lid 52 has a fixing groove 521 that can accommodate the end of at least one fixing tool 213. When the screwed lid 52 rotates, the fixing tool 213 is driven and slid along the inclined surface of the restriction groove 51, and the movable pin 212 is pulled out from the through hole 12 or fitted into the through hole 12 and fixed. Can do. The holding plate 30 is provided on the opposite side of the opening 11 of the bowl-shaped main body 10, and a pin 31 that can slide in the sliding groove 211 passes therethrough.

  Furthermore, a detaching device 40 that can be coupled to the latch 60 is provided at the bottom of the bowl-shaped main body 10. The detaching device 40 includes a detaching base 41 coupled to the bowl-shaped main body 10 and a pressing member 42 penetrating the detaching base 41. The detachment base 41 has a plurality of fixed balls 411 attached to the outer wall. The retainer 42 has an accommodation groove 421 formed on the outer wall. The detachment base 41 and the latch 60 are coupled by a plurality of fixed balls 411. When the presser 42 is pressed, the fixed ball 411 is separated from the latch 60 and the detachment base 41 and the latch 60 are separated. Further, the presser 42 has a screw thread 422 for screwing the safety nut 43. The safety nut 43 rotates and adjusts the position on the screw thread 422, abuts on the removal base 41, and can prevent the pressing tool 42 from being pressed unexpectedly.

  As shown in FIGS. 4 and 5, when the user connects the rope to the safety hook according to the present embodiment, first, the screwed lid 52 is turned, and the fixture 213 is driven to slide along the slope of the limiting groove 51. The movable pin 212 is pulled out from the hole 12. At this time, the safety hook cannot be used while still holding the retainer 20. The pin 31 slidable in the sliding groove 211 is fixed to one end of the sliding groove 211 (shown in FIG. 6). Even if the retainer 20 is pressed, the retainer 20 cannot move in the direction of the bowl-shaped main body 10.

  The user pushes the pressing plate 30, drives and moves the pin 31 (shown in FIG. 7), and presses and moves the retainer 20 (shown in FIG. 8). Thereafter, the presser plate 30 and the retainer 20 are loosened, the screwed lid 52 is turned, the fixture 213 is driven and slid along the inclined surface of the limiting groove 51, and the movable pin 212 is fitted into the through hole 12. As a result, even if the user accidentally presses the holding plate 30 and the braking pin 31 is driven, the retainer 20 can be pressed or moved by the movable pin 212 fitted and fixed to the through hole 12. It is not possible to ensure the safety of the user effectively.

  The safety hook according to the present embodiment is provided with a detaching device 40 that can be coupled to the latch 60 at the bottom of the bowl-shaped main body 10. The removal device 40 can be applied to various latches 60. The ropes having different thicknesses can be quickly passed through the latch 60, so that the latch 60 and the detachment base 41 can be quickly combined. Further, in order to prevent the combined latch 60 and the detaching device 40 from being separated, the safety nut 43 is tightened to the presser 42 (shown in FIG. 9). Thereby, it can be prevented that the user accidentally presses the pressing member 42 and the latch 60 is separated from the detaching device 40 and detached.

  When the user replaces the latch 60, the safety nut 43 is loosened to the upper end (shown in FIG. 10) of the thread 422 of the retainer 42. Thereby, the user can hold down the pressing tool 42 appropriately. A plurality of fixed balls 411 attached to the outer wall of the detachment base 41 can be drawn into a receiving groove 421 (shown in FIG. 11) formed on the presser 42, and the detachment base 41 and the latch 60 can be separated. This makes it convenient to connect or separate the detachment base 41 and the latch 60.

DESCRIPTION OF SYMBOLS 10 ... Shaft-shaped main body 11 ... Opening part 12 ... Through-hole 20 ... Retainer 21 ... Extension plate 211 ... Sliding groove 212 ... Movable pin 213 ... Fixing tool 30・ ・ Presser plate 31 ・ ・ ・ Pin 40 ・ ・ ・ Removal device 41 ・ ・ ・ Removal base 411 ・ ・ ・ Fixed ball 42 ・ ・ ・ Presser 421 ・ ・ ・ Accommodating groove 422 ・ ・ ・ Screw thread 43 ・ ・ ・ Safety Nut 50 ... Pin holder 51 ... Restriction groove 52 ... Screw-in lid 521 ... Fixing groove 53 ... Mounting part 60 ... Latch

Claims (3)

A bowl-shaped body having an opening and a through hole;
A movable pin that is rotatably coupled to the opening of the bowl-shaped body, extends so as to straddle the opening of the bowl-shaped body, and has a sliding groove and one end fitted into the through hole of the bowl-shaped body. A retainer having an extension plate provided with;
A holding plate which is provided on the opposite side of the opening of the bowl-shaped main body and through which a slidable pin penetrates the sliding groove;
A safety hook characterized by comprising: An at least one restricting groove having an inclined surface on the inner wall, a mounting portion formed so as to protrude from the inner wall, and a pin holder having a screwed lid that is rotatably closed on the outer wall;
The movable pin penetrates the pin receiver, and is provided with a fixture that is slidable along the slope of the restriction groove at one end,
The screwed lid has a fixing groove for receiving an end of at least one of the fixtures,
When the screwed lid is turned, the fixture is driven to slide along the inclined surface of the restriction groove, and the movable pin is pulled out of the through hole or fitted and fixed to the through hole. The safety hook according to claim 1, wherein: At the bottom of the bowl-shaped body, a detachable device that can be combined with a latch is provided,
The detaching device includes a detaching base that is coupled to the bowl-shaped main body and has a plurality of fixed balls attached to an outer wall, and a pressing tool that penetrates the detaching base and has a housing groove formed in the outer wall.
The presser has a thread for screwing a safety nut,
The safety nut can rotate and come into contact with the removal table,
The detachment base and the latch are coupled by the plurality of fixed balls,
2. The safety hook according to claim 1, wherein when the presser is pressed, the plurality of fixed balls are separated from the latch, and the detachment base and the latch are separated.

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