CN111960311A - Safety brake device - Google Patents

Abstract

A safety braking device includes a base, a sliding part, a first pushing part, a reel and a first emergency stop structure. The sliding part, the first pushing part, the reel and the first emergency stopping structure are arranged on On the base, the reel is used to wind up or release a rope body. The first pushing member provides a first pushing force to act on the sliding member. When the end of the rope body connected to the load is subjected to an instant downward force greater than When the first pushing force of the first pushing member is applied, the emergency stop structure is activated to stop the reel from releasing the rope body, which can cause a timely stopping action when a person or object falls.

Description

safety catch

technical field

The present invention relates to a safety catch device; in particular, it refers to a safety catch device for avoiding falling.

Background technique

In workplaces such as roofs, factories, elevators, construction sites, etc., in order to prevent the load from falling, the operator will fix one end of the rope to a safe and stable base, and the other end is connected to the load. When it is dropped carefully, it can prevent the load from falling directly and cause damage.

The load can be carried goods or workers, for example, workers working on construction sites, the risk of their work increases with the height of the working position, so when working at high places, the workers will be equipped with There is a safety anti-falling device, wherein one end of the safety anti-falling device is fixed on a stable support, and the other end is fastened to the body of the staff, thereby ensuring the personal safety of the staff.

Similar problems caused by falling may also occur at home, such as those with limited mobility or the elderly, when between squatting stands or when going up and down stairs, it may be due to the lack of flexibility of the limbs or the difficulty of the limbs to support the weight of the body. There is a risk of falling or falling, and the resulting consequences will have personal safety concerns. Therefore, if there is a mechanism that can stop the action in time when the person or object falls, it will avoid the occurrence of undue danger.

SUMMARY OF THE INVENTION

In view of this, an object of the present invention is to provide a safety detent device, which can stop the action in time when a person or object falls.

In order to achieve the above purpose, the present invention provides a safety catch device comprising a base, a sliding member, a first push member, a wire reel and a first emergency stop structure, wherein the base includes two side plates, the two side plates are separated by a distance and have a chute respectively; the sliding piece can move between a first position and a second position along the chute of the two side plates; the first top The pusher provides a first push force to act on the slider, and keeps the slider to move to the first position; the reel includes a reel and a rope body, and the reel is rotatable It is arranged between the two side plates and used to wind up or release the rope body. One end of the rope body bypasses the sliding member and connects the load; the first emergency stop structure includes a first actuating member and a first A positioning member, the first actuating member is connected to the sliding member, the first positioning member is linked with the reel, when the rope body is subjected to an instantaneous downward force greater than the first pusher of the first pusher When pushing force, the rope body pulls the sliding member to move from the first position to the second position, and the first actuating member and the first positioning member form a latch.

The effect of the present invention is that when the end of the rope body connected to the load is subjected to an instantaneous downward force greater than the first thrust force of the first push member, the first actuating member and the first positioning member form a latch, so that the The reel stops releasing the rope, so that when the person or object connected by the rope falls, it can stop the action in time at the moment of the fall.

Description of drawings

1 is a perspective view of a safety catch device according to a first preferred embodiment of the present invention;

Fig. 2 is the bottom view of the safety catch device of the above-mentioned preferred embodiment;

Fig. 3 is the schematic diagram of the safety catch device of the above-mentioned preferred embodiment;

4 is a schematic diagram of the safety catch device of the above-mentioned preferred embodiment;

5 is a schematic diagram of a safety catch device according to a second preferred embodiment of the present invention;

6 is a schematic diagram of the safety catch device of the above preferred embodiment;

Fig. 7 is the side view of Fig. 6;

FIG. 8 is a schematic diagram of the safety catch device of the above-mentioned preferred embodiment;

FIG. 9 is a side view of FIG. 8 .

FIG. 10 is a schematic diagram of some components of the safety catch device according to a preferred embodiment of the present invention.

【Symbol Description】

[this invention]

100 safety catches

10 Pedestals

12 Side plate 12a Chute 14 Turning piece

14a Limit groove 16 Fixed block 17 Sleeve

18 The first convex rod 19 Limit pulley

20 slides

22 sliding roller 22a limit groove 24 axis

26 guide block 28 second protruding rod

30 First push piece

40 reels

42 reel 44 rope body

52 The first actuating piece 54 The connecting piece 56 The first positioning piece

56a ratchet

200 safety catches

60 Second emergency stop structure

61 The second actuating piece 62 The second positioning piece 63 The positioning rail

63a track 63b positioning hole 64 link rod

64a First end 64b Pivot 65 Top rod

65a second end 66 steel ball 67 adjusting piece

68 coil spring 69 shaft

70 Second push piece

80 rollers

82 Sleeve 82a Side hole

F momentary downward force

F1 first thrust

P1 first position

P2 second position

F2 second top thrust

P3 third position

P4 fourth position

Detailed ways

In order to explain the present invention more clearly, the preferred embodiments are listed and described in detail with the accompanying drawings as follows. Please refer to FIG. 1 to FIG. 4 , which is a safety catch device 100 according to a first preferred embodiment of the present invention. The safety catch device 100 includes a base 10 , a sliding member 20 , a first push member 30 , and a winding wire device 40 and the first emergency stop structure.

The base 10 includes two side plates 12 and a steering member 14 separated by a distance. The two side plates 12 respectively have corresponding sliding grooves 12a. Block 16, the block 16 is fixed and a first protruding rod 18 is connected. The steering member 14 is a pulley in this embodiment, and the pulley is rotatably disposed between the two side plates 12 through a shaft.

In this embodiment, the sliding member 20 includes a sliding roller 22 and a shaft center 24 . The shaft center 24 passes through the sliding roller 22 and two ends respectively pass through the sliding grooves 12 a , so that the sliding member 20 can slide between the two side plates 12 . It moves between the first position P1 and the second position P2 along the chute 12a. Two ends of the shaft center 24 of the sliding member 20 passing through the chute 12a are respectively connected with a guide block 26 , and a second protruding rod 28 is connected on the guide block 26 .

The first pushing member 30 is a compression spring in this embodiment. Both ends of the compression spring are respectively sleeved on the first protruding rod 18 and the second protruding rod 28 . The thrust force F1 acts on the guide block 26, so that the sliding member 20 keeps moving to the first position P1.

The reel 40 includes a reel 42, a rope body 44 and a coil spring (not shown). The reel 42 is rotatably disposed between the two side plates 12 through a shaft, one end of the rope body 44 is fixed on the reel 42 , and the coil spring is hidden inside the reel 42 , and its rewinding force drives the reel 42 to rotate and rewind the rope body 44 . The other end of the rope body 44 first bypasses the sliding roller 22, then bypasses the steering member 14, and then hangs down and is connected with a load. The load can be a person or an object. The steering member 14 is arranged on the reel 42 and the sliding roller. 22 and between the reel 42 and the sliding roller 22 .

The first emergency stop structure includes a first actuating member 52 , a connecting member 54 and a first positioning member 56 . The two ends of the first actuating member 52 respectively pass through the chute 12a , and the connecting member 54 is arranged outside the chute 12a . The first actuating member 52 and the sliding roller 22 are simultaneously connected, so the first actuating member 52 is connected to the sliding roller 22 through the connecting member 54 . The first positioning member 56 is a ratchet wheel including a plurality of ratchet teeth 56 a, which is coaxially disposed with the reel 42 and can rotate coaxially.

The above is a description of the composition of the safety detent device 100 according to the first preferred embodiment of the present invention, and the operation mode of the safety detent device 100 will be described in detail below.

Please refer to FIGS. 3 and 4 , when the momentary downward force F on the rope body 44 is greater than the first thrust force F1 provided by the first pushing member 30 to act on the sliding member 20 , the rope body 44 pulls the sliding roller 22 Then the compression spring of the first pushing member 30 is compressed. At this time, the sliding roller 22 moves from the first position P1 shown in FIG. 2 to the second position P2 shown in FIG. 3 , and drives the first actuating member 52 and the ratchet wheel at the same time. The upper ratchet teeth 56a form a latch, so the reel 42 that rotates coaxially with the ratchet also stops rotating, and the reel 42 stops releasing the rope body 44 .

In this embodiment, the safety catch device 100 is used for home protection, the base 10 is arranged above the area where the elderly are prone to fall, such as a bathroom, a bedroom, etc., and the rope body 44 is connected to one end of the load and is connected to a mobile device. Inconvenient old people, when the old man's center of gravity is unstable and falls, the rope body 44 will be pulled, so that the first actuating member 52 and the ratchet teeth 56a on the ratchet wheel form a jam, so that the reel 42 cannot rotate to release the rope body 44, Therefore, the old man stops falling, so that the old man can be prevented from falling heavily on the ground when he accidentally falls, and the head or other parts of the body will be hit.

When the old man regains the center of gravity and stands up, the downward force on the rope body 44 is less than the first push force F1, the compression spring of the first push member 30 releases its stored potential energy, and pushes the sliding roller 22 toward the first pusher 30. At the position P1, the sliding roller 22 drives the first actuating member 52 to disengage from the ratchet 56a of the first positioning member 56, so the reel 42 returns to a rotatable state, that is, when the elderly slowly moves to a position away from the base 10 , the rope body 44 will be pulled to rotate the reel 42 and the rope body 44 will be released. The rope body 44 will bypass the sliding roller 22 and drive the sliding roller 22 to rotate and release the rope body 44. On the contrary, when the old man moves close to the base At the position of 10, the rope body 44 will be loosened. At this time, the reel 42 is rotated by the rewinding force of the coil spring to wind up the rope body 44, so that the rope body 44 is maintained in a tensioned state.

Both the sliding roller 22 and the wheel body of the steering member 14 in the above-mentioned embodiment are formed with an annular concave limiting groove 22a and a limiting groove 14a, which can be used for the rope body 44 to be disposed therein and confine the rope body 44 in the limiting position. The slot 22a and the limit slot 14a move in the position to prevent the rope body 44 from slipping off. In this embodiment, the base 10 further includes a limit pulley 19, which is rotatably disposed between the two side plates 12 through a shaft. Adjacent to the steering member 14, a sliding space is formed between the surface of the limiting pulley 19 and the limiting groove 14a of the steering member 14, and when the rope body 44 passes through the sliding space, it will be confined therein. The rope body 44 slips off during the movement.

As shown in FIG. 5 to FIG. 9 , it is a safety catch device 200 according to the second preferred embodiment of the present invention, and its structure is substantially the same as that of the safety catch device 100 in the first preferred embodiment. The device 200 further includes a second emergency stop structure 60 , a second pusher 70 , a plurality of rollers 80 and a sleeve 82 .

The second emergency stop structure 60 includes a second actuating member 61 , a second positioning member 62 and a positioning rail 63 , and the second actuating member 61 is the guide block 26 in the above-mentioned embodiment, which will not be described herein again. The second positioning member 62 includes a link rod 64 and a top rod 65. The link rod 64 is pivotally disposed on the base 10 through a pivot shaft 64b, and one end of the link rod 64 forms a first end 64a It is arranged in the sleeve 82 , and the other end is passed through the side hole 82 a of the sleeve 82 and abuts against the ejector rod 65 . The ejector rod 65 is disposed in the sleeve 17 on the base 10 in a linearly displaceable manner. The ejector rod 65 forms a second end 65a at the end of the ejector rod 65 which is in contact with the linkage rod 64 , whereby the linkage rod 64 can It is linked with the movable ejector rod 65 and moves between the third position P3 and the fourth position P4. The positioning rail 63 has a rail 63a and a plurality of positioning holes 63b, and the plurality of positioning holes 63b are arranged along the long axis of the rail 63a.

A plurality of rollers 80 are rotatably disposed above the base 10 through their axles, and the rollers 80 can cooperate with the rails 63a to move in the rails 63a, whereby the rollers 80 can drive the base 10 along the long axis of the rails 63a. direction to move. The sleeve 82 is a structure with an accommodating space inside, and is fixed to the base 10 and disposed above the guide block 26 when it is at the first position P1.

The second pushing member 70 is a compression spring, which is disposed in the accommodating space of the sleeve 82 , one end of which is abutted against the inner wall of the sleeve 82 and the other end is abutted on the link rod 64 . When enabled, the second push force F2 is generated to act on the linkage rod 64, so that the sliding member 20 maintains the movement to the third position P3.

When the sliding member 20 is in the first position P1, the compression spring of the second pushing member 70 provides the second pushing force F2 on the link rod 64, so that the first end 64a of the link rod 64 abuts against the second actuating member 61 is located at a third position P3. In this embodiment, the second emergency stop structure includes a steel ball 66, and the first end 64a of the linkage rod 64 indirectly contacts the second actuating member 61 through the steel ball 66, However, other embodiments are not limited to this. For example, the first end 64a of the linkage rod 64 can also directly contact the second actuating member 61 or indirectly contact the second actuating member 61 through other components. When the sliding member 20 is located at the second position P2, as shown in FIG. 7 and FIG. 8 , the compression spring of the second pushing member 70 releases its stored potential energy, and pushes the linkage rod 64 downward to In the fourth position, the end of the linkage rod 64 that is in contact with the ejector rod 65 pivots upward to drive the ejector rod 65 to move upward, and the second end 65a of the ejector rod 65 is inserted into one of the positioning holes 63b on the track 63a to connect with the positioning hole 63b. The rail 63 forms a snap-fit.

In this embodiment, the safety catch device 200 is arranged above the stairs, and its load is an elderly person with inconvenience. The problem of the limited movement range of the conventional safety anti-fall device is improved, and when the elderly accidentally falls or falls, not only will the first actuating member 52 and the first positioning member 56 be stuck, but the reel 42 cannot be rotated and released At the same time, the rope body 44 is linked with the ejector rod 65 to be inserted into the positioning hole 63b on the track 63a to form a snap against the positioning rail 63, so that the base 10 cannot move relative to the positioning rail 63. Therefore, when the elderly triggers the safety catch device 200 to act. After moving, the old man is protected by the safety catch device 200 to stop falling and stop moving.

In the above-mentioned embodiment, the coil spring is hidden inside the reel 42. In other embodiments, the position of the coil spring is not limited to being arranged inside the reel 42. As shown in FIG. The wire device 40 includes an adjusting member 67 , a coil spring 68 and a shaft rod 69 . The adjusting member 67 is detachably coupled to the side plate 12 through a fixing member, and one end of the coil spring 68 is fixed on the adjusting member 67 , and the other end is fixed on the shaft 69 , wherein the shaft 69 moves with the reel 42 , so that when the user removes the fixing member, the adjusting member 67 can move along the axis of the shaft 69 , rotates relative to the side plate 12, so the user can rotate the adjusting member 67 to change the torsion force exerted by the coil spring 68 on the shaft 69 and the reel 42, and when the user rotates the adjusting member 67 to the desired When the position is adjusted, the user can install the fixing piece again, so that the adjusting piece 67 is fixed and positioned by the fixing piece, that is, the torsion adjustment of the coil spring 68 is completed.

The above descriptions are only preferred feasible embodiments of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the scope of the patent of the present invention.

Claims (10)

1. A safety brake device, comprising:

a base, including two side plates, the two side plates are separated by a space and respectively provided with a sliding chute;

a sliding part which can move between a first position and a second position along the sliding grooves of the two side plates;

the first pushing piece provides a first pushing force to act on the sliding piece and enables the sliding piece to keep moving to the first position;

a reel, including a reel wheel and a rope body, the reel wheel is rotatably arranged between the two side plates and used for reeling or releasing the rope body, one end of the rope body bypasses the sliding piece and is connected with a load; and

and the first emergency stop structure comprises a first actuating part and a first positioning part, the first actuating part is connected with the sliding part, the first positioning part is linked with the winding wheel, when the rope body is subjected to instant downward force which is larger than the first pushing force of the first pushing part, the rope body pulls the sliding part to move from the first position to the second position, and the first actuating part and the first positioning part form clamping and abutting.

2. Safety braking device according to claim 1, characterized in that it comprises:

a second emergency stop structure, including a second actuating component, a second positioning component and a positioning rail, the second actuating component is connected to the sliding component, the second positioning component can move between a third position and a fourth position and has a first end and a second end which are opposite and linked, wherein when the sliding component is located at the first position, the first end of the second positioning component is abutted against the second actuating component and located at the third position, and when the sliding component is located at the second position, the second positioning component moves to the fourth position; and

and the second pushing piece provides a second pushing force to act on the second positioning piece so that the second positioning piece is kept to move towards the fourth position, and when the sliding piece moves towards the second position and the second positioning piece moves towards the fourth position from the third position, the second end of the second positioning piece is clamped against the positioning rail.

3. The safety brake device according to claim 1, wherein the base includes at least one steering member disposed between the two side plates, the steering member being located below the sliding member and adjacent to the winding wheel.

4. The safety brake device as claimed in claim 3, wherein the diverting member is a pulley having a limiting groove for limiting the rope in the limiting groove.

5. The safety brake device as claimed in claim 2, wherein the positioning rail has a rail and a plurality of positioning holes disposed along a longitudinal direction of the rail, the base includes a plurality of rollers engaged with the rail of the positioning rail to move along the longitudinal direction of the rail, and the second end of the second positioning member is inserted into one of the positioning holes to engage with the positioning rail.

6. The safety brake device according to claim 5, wherein the second positioning member comprises a linkage rod and a rod, the linkage rod is pivotally mounted on the base, the rod is linearly movably mounted on the base, one end of the linkage rod forms the first end, and one end of the rod forms the second end.

7. The safety brake device as claimed in claim 1, wherein the sliding member includes a sliding roller, and when the rope is subjected to a downward force, the winding roller rotates and releases the rope, and the rope passes around the sliding roller and drives the sliding roller to rotate.

8. The safety brake device as claimed in claim 7, wherein the sliding roller has a limiting groove for limiting the rope in the limiting groove.

9. The safety brake device according to claim 1, wherein the first positioning member comprises a ratchet wheel which is coaxially disposed and rotatable with the winding wheel.

10. The safety brake device as claimed in claim 6, wherein the second emergency stop structure includes a ball, and the first end of the linkage indirectly abuts the second actuator through the ball.

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