TWM479958U - Structure improvement of anti-falling device - Google Patents

Description

Anti-drop device improved structure

The present invention relates to the technical field of the structure of the anti-drop device, and more particularly to an improved structure of the anti-drop device with better safety and convenient operation.

A conventional anti-drop device for use in aerial work, as shown in the Taiwan Patent Application No. I349727, which was originally filed by the Japanese Patent Application No. I-349727, which is mainly characterized in that the left and right sections of a shaft member are axially spaced apart from each other to form a symmetrical complex ratchet. , the shaft member is provided with a hanging seat for hanging the safety rope of the upper-air working person, and the axially movable claw seat is respectively sleeved on the left and right sections of the shaft member, the claw seat Having a movable clip and a control member coupled to the movable clamp, the control member has a one-way latching tooth, and the spring is acted upon to engage the one-way latching tooth with the ratchet, so that the two claws are When the shaft members are facing each other, the one-way teeth of the two control members can sequentially enter and exit the ratchet teeth along the pushing direction. When the two claw seats move in the opposite direction along the shaft member, the two control members are unidirectional. The latches are blocked by the ratchet and cannot be moved. Instead, the two control members need to be pressed to release the one-way latches from the ratchets, so that the two claws can be moved in the opposite direction along the shaft member, thereby achieving One-way clamping without arbitrarily opening. Thereby, the two clamping seats are clamped on the H-shaped steel, so that the anti-drop device can be moved along the H-shaped steel, thereby providing the staff connected thereto with the safety when walking at a height such as a beam or a cross-beam... Full protection.

However, the conventional anti-drop device only applies the force to the two claws in one direction. The control member on the seat releases the two claw seats so as to be movable outward along the shaft member, so that the two movable clamps can be disengaged from the clamping of the H-shaped steel beam or the H-shaped rail. In particular, the two control members usually rely on the elastic force of the spring to make the one-way latch teeth and the ratchet teeth engage, so that the two control members are easily accidentally pressed to cause the one-way latch to be disengaged. The situation of ratcheting, so its safety is not good. In particular, it is used in high-altitude operations. Once such a small security hole causes an accident, it usually endangers personal life and cannot be ignored.

The control device of the conventional anti-drop device can be pressed as long as it is pressed in one direction. The shaft member is released to allow the claw seat to move freely in the axial direction, so that there is a problem of poor safety.

This creation provides an improved structure for the fall arrester, including a shaft Parts, two jaws and two pins. Wherein, the shaft member has a polygonal shape, and has a hanging seat for the safety rope of the aerial workman to hang. The shaft member has two segments of left and right symmetry, and a plurality of ratchet teeth are respectively arranged along the axial direction on the two segments. The two jaws are respectively axially movably sleeved on the left and right sections of the shaft member, and each jaw comprises a clamping seat, a control member and a spring. The clamping seat has a set of holes, an arcuate hole, a receiving hole and a clamping portion, the sleeve hole is polygonal and is sleeved on the shaft member only axially movable, the curved hole is transverse Passing through to the opposite sides and the lower side is in communication with the sleeve hole, the insertion hole is transversely penetrated to the opposite sides, and the clamping portion is for clamping in an H On the end of the parallel piece of steel. The control member is coupled to the holder and swingable between a clamping position and a release position, the control member having a latch movably disposed in the arcuate hole and disposed on the holder Two perforations on opposite sides. When the control member is in the clamping position, the latch is engaged with the ratchet and the two punches are aligned with the receptacle; when the control is in the release position, the latch is disengaged from the ratchet and the two perforations are offset from the Jack. The spring is disposed between the clamping seat and the control member to provide an elastic force, so that the control member is normally located in the clamping position, and the clamping bolt can follow the pushing direction in sequence when the clamping jaws are facing each other. The ratcheting of the entering and exiting is unidirectionally locked, and when the push is reversed, the latch is caught by the ratchet and cannot be opened. The two latches can be respectively inserted into the two through holes and the insertion holes of the two jaws to limit the control member to the clamping position.

The improved structure of the anti-drop device provided by the present invention can be Two pins are inserted into the two perforations and the insertion holes of the two jaws to limit the control member to the clamping position. In this way, the control member can be prevented from being accidentally pressed to disengage the latch from the ratchet, thereby preventing the two jaws from being arbitrarily moved on the shaft member and being separated from the H-shaped steel. Security. Moreover, as long as the pin is extracted from the two through holes and the insertion hole, the two clamping jaws can be directly pushed to face each other, so that the card bolts enter and exit the ratchet teeth in a sequential direction along the pushing direction to form a single Engage to achieve the purpose of clamping on the H-beam. In addition, when the latch is pulled out from the two through holes and the jack, the control member can be directly swung to the release position to disengage the latch from the ratchet, so that the two jaws can be outwardly Move axially to disengage the H-beam. Therefore, it is very convenient in operation and use.

1‧‧‧ shaft parts

10‧‧‧ hanging pedestal

11‧‧‧ ratchet

12‧‧‧through hole

13‧‧‧Limiting bolts

14‧‧‧ Nuts

2‧‧‧claw

20‧‧‧Clip seat

200‧‧‧ Bevel

201‧‧‧Spring slot

202‧‧‧ Groove

203‧‧‧ pivot slot

21‧‧‧Controls

210‧‧‧Press film

211‧‧‧ side film

212‧‧‧ card plug

213‧‧‧ pivot

214‧‧‧Perforation

22‧‧‧ Spring

23‧‧‧ Set of holes

24‧‧‧Arc hole

25‧‧‧ jack

26‧‧‧Clamping Department

260‧‧‧ card slot

261‧‧‧ convex

262‧‧‧Roller

3‧‧‧Latch

30‧‧‧ head

31‧‧‧Elastic convex

32‧‧‧ sling

33‧‧‧Fixed parts

34‧‧‧ fixing screws

4‧‧‧H-beam

40‧‧‧parallel

5‧‧‧High-altitude workers

50‧‧‧Safety rope

The first figure is a three-dimensional exploded view of the creation.

Figure 2 is a three-dimensional combination diagram of the creation.

Figure 3 is a schematic cross-sectional view of the creation.

Figure 4 is a schematic diagram of the action of the present clip on the H-beam.

Figure 5 is a reference diagram of the usage status of this creation.

Figure 6 is a schematic diagram of the action when the creation is opened outward.

Figure 7 is another embodiment of the present creation.

Referring to Figures 1 to 6, it is shown that the improved structure of the anti-drop device of the present invention comprises a shaft member 1, two jaws 2 and two pins 3. Wherein: the shaft member 1 is hexagonal, and has a hanging seat 10 at the center thereof for the safety rope 50 of the aerial workman 5 to hang. The shaft member 1 has two segments symmetrical left and right, and a plurality of ratchet teeth 11 are respectively disposed on the two segments along the axial interval. The two ends of the shaft member 1 respectively have through holes 12 penetrating the opposite sides, and the two through holes 12 are respectively passed through the two limiting bolts 13 through which the ends of the two limiting bolts 13 pass. After 12, a nut 14 is screwed separately.

The two jaws 2 are respectively axially movably sleeved on the left and right sections of the shaft member 1. Each jaw 2 includes a clamping seat 20, a control member 21 and a spring 22. The holder 20 has a set of holes 23, an arcuate hole 24, a socket 25 and a clamping portion 26. The sleeve hole 23 is polygonal and sleeved on the shaft member 1, so that the holder 20 is only It can move axially on the shaft member 1. The arcuate hole 24 extends transversely to the opposite sides, and the lower side communicates with the upper side of the sleeve hole 23. The receptacle 25 extends transversely to the opposite sides. The clamping portion 26 is formed with a card slot 260 opening inwardly, and the slots 260 of the two jaws 2 are for clamping on both ends of the parallel piece 40 of the H-shaped steel 4. The outer edge of the top surface of the holder 20 has a slope 200 having a spring groove 201 thereon. The opposite sides of the holder 20 respectively have two grooves 202, and the two grooves 202 have two pivot grooves 203 on opposite groove walls. The control member 21 is coupled to the holder 20 and swingable between a carding position and a release position. The control member 21 includes a pressing piece 210, two side pieces 211, and a latch 212. The pressing piece 210 is located above the inclined surface 200. The two side pieces 211 extend from the two ends of the pressing piece 210 to the two grooves 202. The two side pieces 211 respectively have two pivot posts 213 and two The through holes 214 are pivotally disposed in the two pivot slots 203, and the two through holes 214 are aligned with the insertion holes 25. The latch 212 is disposed in the arcuate hole 24, and the two ends are respectively coupled to the two side sheets 211. The spring 22 is disposed in the spring groove 201, and the upper end is disposed on the bottom surface of the pressing piece 210 to provide an elastic force to position the control member 21 in the clamping position.

The two pins 3 can be respectively inserted into the two through holes 214 and the insertion holes 25 of the two jaws 2 to restrict the control member 21 to the locking position. Each of the latches 3 has a head 30 having a larger outer diameter at one end, and the other end has an elastically compressible portion to pass through the two through holes 214 and the insertion hole 25 to convexly define one of the elastic projections 31 on the other side. The head 30 is fastened to one end of a sling 32. The other end of the sling 32 has a fixing member 33. The fixing member 33 is screwed to the top surface of the holder 20 by a fixing screw 34. on.

Please refer to the figures 1 and 3, indicating that the spring 22 is provided. An elastic force causes the control member 21 to be normally located in the clamping position, and when the control member 21 is in the clamping position, the latch 212 is engaged with the ratchet 11 and the two through holes 214 are aligned with the jack 25. At this time, when the two pins 3 are respectively inserted into the two through holes 214 and the insertion holes 25 of the two jaws 2, the control member 21 can be restricted to the locking position.

Please refer to the pictures shown in Figures 1, 4 and 5, indicating that when inserting the two When the pin 3 is respectively pulled out from the two through holes 214 and the insertion holes 25 of the two jaws 2, the two clamping jaws 2 can be pushed to face each other, so that the locking bolts 212 can enter and exit the thorns in sequence according to the pushing direction. The teeth 11 are unidirectionally locked. If the two jaws 2 are to be pushed in the reverse direction at this time, the latch 212 may not be opened due to the ratcheting of the ratchets 11. Therefore, when the two jaws 2 are sandwiched on the H-shaped steel 4 along the shaft member 1 and the safety rope 50 on the worker 5 is attached to the hanger 10 on the shaft member 1, It can be used for the aerial workman 5 to walk at a high altitude such as a suspended beam or a cross sill, and the safety rope 50 on the body can drive the fall arrester to slide along the H-shaped steel 4 limit position. Moreover, by sandwiching the two jaws 2 on the H-shaped steel 4, it is possible to lift the high-altitude workers 5 when they accidentally fall to ensure safety.

Please refer to the figures shown in Figures 1 and 6. It is pointed out that when the two pins are pulled out At 3 o'clock, the control member 21 can be pressed to swing to the release position, and when the control member 21 is in the release position, the latch 212 will be disengaged from the ratchet 11 and the two perforations 214 will also deviate from the Jack 25. At this time, the two jaws 2 can be axially pushed outward to be opened to release the sandwiching state of the H-beam 4.

Moreover, by the adjustment action of the above two jaws 2, it can be made Applicable to H-beam 4 of various specifications. In addition, by blocking the two sets of restriction bolts 13 and the nut 14, the two jaws 2 can be prevented from being disengaged from both ends of the shaft member 1.

Please refer to FIG. 7 , which is another embodiment of the present creation. The structure is substantially the same as that of the above embodiment, except that the clamping portion 26 of the two jaws 2 of the embodiment has a convex portion 261 and two rollers 262 which are freely rotatable and arranged in parallel, and the convex portion 261 and the two A roller slot 260 is formed between the rollers 262 to open inwardly. The slot 260 of the two jaws 2 is for clamping on the end of the parallel piece 40 of the H-shaped steel 4, and the anti-drop device is disposed on the H by the rollers 262 on the two jaws 2 The steel 4 moves more smoothly.

Since the improved structure of the fall arrest device of the present invention can be The latch 3 is inserted into the two through holes 214 and the insertion holes 25 of the two jaws 2 to restrict the control member 21 to the locking position. In this way, the control member 21 can be prevented from being accidentally pressed to release the latch 212 from the ratchet 11 , thereby preventing the two jaws 2 from arbitrarily moving on the shaft member 1 and being disengaged from the H-shaped steel 4 . Therefore, it has better security. Moreover, as long as the latch 3 is pulled out from the two through holes 214 and the insertion hole 25, the two clamping jaws 2 can be directly pushed to face each other, so that the latching pins 212 can enter and exit one by one in the driving direction. The ratchet 11 forms a one-way locking for the purpose of being clamped on the H-section steel 4. In addition, when the latch 3 is pulled out from the two through holes 214 and the insertion hole 25, the control member 21 can also be swung to the release position by manual pressing to disengage the latch 212 from the ratchet 11 . In this way, the two jaws 2 can be moved axially outwards to disengage the clamping of the H-section steel 4. Therefore, it is very convenient and fast in operation and use. speed.

1‧‧‧ shaft parts

10‧‧‧ hanging pedestal

11‧‧‧ ratchet

12‧‧‧through hole

13‧‧‧Limiting bolts

14‧‧‧ Nuts

2‧‧‧claw

20‧‧‧Clip seat

200‧‧‧ Bevel

201‧‧‧Spring slot

202‧‧‧ Groove

203‧‧‧ pivot slot

21‧‧‧Controls

210‧‧‧Press film

211‧‧‧ side film

212‧‧‧ card plug

213‧‧‧ pivot

214‧‧‧Perforation

22‧‧‧ Spring

23‧‧‧ Set of holes

24‧‧‧Arc hole

25‧‧‧ jack

26‧‧‧Clamping Department

260‧‧‧ card slot

3‧‧‧Latch

30‧‧‧ head

31‧‧‧Elastic convex

32‧‧‧ sling

33‧‧‧Fixed parts

34‧‧‧ fixing screws

Claims (10)

The improved structure of the anti-drop device comprises: a shaft member having a polygonal shape, and a hanging seat for hanging by a safety rope of an aerial worker, the shaft member having two left and right symmetrical sections, the two sections The upper jaws are respectively provided with a plurality of ratchets along the axial interval; the two clamping jaws are respectively axially movably sleeved on the left and right sections of the shaft member, each jaw comprising a clamping seat and a control member And a spring having a set of holes, an arcuate hole, a socket and a clamping portion, the sleeve hole being polygonally disposed on the shaft member for axial movement, the arc hole The transverse direction penetrates to the opposite sides, and the lower side communicates with the sleeve hole, the insertion hole is transversely penetrated to the opposite sides, and the clamping portion is for clamping on the end of the parallel piece of the H-shaped steel, the The control member is coupled to the holder and swingable between a clamping position and a release position, the control member having a latch movably disposed in the arcuate hole and disposed on the holder Two perforations on opposite sides, when the control member is in the clamping position, the latch is engaged with the ratchet and the two perforations are aligned a jack, when the control member is in the release position, the latch is disengaged from the ratchet and the two perforations are offset from the receptacle, the spring being disposed between the clamp and the control member to provide an elastic force for the control The piece is normally located in the clamping position, and when the two clamping jaws are facing each other, the clamping pin can be unidirectionally locked in and out of the passing ratchet in the driving direction, and the card is locked in the reverse pushing. The ratchet is clamped and cannot be opened; and the two latches are respectively inserted into the two through holes and the insertion holes of the two jaws to restrict the control member to the locking position. The improved structure of the anti-drop device according to claim 1, wherein the top surface of the holder is outside The edge has a beveled surface, the bevel has a spring groove, the control member comprises a pressing piece and two side pieces, the pressing piece is fastened above the inclined surface, and the two side pieces extend from the two ends of the pressing piece to the Two opposite sides of the clip, the two ends of the clip are coupled to the two side sheets, the two perforations are respectively disposed on the two side sheets, the spring is disposed in the spring groove and the upper end is mounted on the pressing piece Bottom surface. The improved structure of the anti-drop device according to claim 2, wherein the opposite sides of the clamping seat respectively have two pivoting grooves, and the two side plates respectively have two pivot posts for pivoting in the two pivoting grooves. The improved structure of the anti-drop device according to claim 2, wherein the opposite sides of the holder respectively have two grooves for accommodating the two side pieces to swing therein. The improved structure of the anti-drop device according to claim 1, wherein the latch has one end having a larger outer diameter at one end, and the other end has elastic compressibility to pass through the two perforations and the insertion hole to be convexly disposed at another One of the side protrusions is attached to one end of a sling, and the other end of the sling is coupled to the holder. The improved structure of the anti-drop device according to claim 5, wherein the other end of the sling has a fixing member, and the fixing member is screwed on the holder by a fixing screw. The improved structure of the anti-drop device according to claim 1, wherein the two ends of the shaft member respectively have through holes penetrating the opposite sides, and the two through holes are respectively for the two limiting bolts to pass through, the two limiting bolts After the ends pass through the two through holes, a nut is respectively screwed. The improved structure of the anti-drop device according to claim 1, wherein the shaft member and the sleeve hole are in a hexagonal shape that can be oppositely sleeved. The improved structure of the anti-drop device according to claim 1, wherein the clamping portion of the clamping jaw forms a card slot opening inwardly, and the clamping groove of the two clamping jaws is for clamping in the H-shaped steel. On the end of the parallel piece. The improved structure of the anti-drop device according to claim 1, wherein the clamping portion of the two jaws has a convex portion and two rollers that are freely rotatable and arranged in parallel, and the convex portion and the two rollers are formed. The card slot that opens inwardly, the card slot of the two jaws can be clamped on the end of the parallel piece of the H-shaped steel.