Rope grabbing device

Abstract

A shell is provided with a rope seat part and a box part, the rope seat part is provided with a rope groove, the box part is in pivot joint with a cam part, the cam part can be matched with the rope groove to clamp a rope body arranged in the rope groove in a penetrating mode, the box part is provided with a limiting part capable of moving forwards and backwards towards the rope seat part, and the limiting part is provided with a limiting wheel used for guiding the rope body. The box part is pivoted with a locking piece which can be reset after being rotated, and the locking piece is provided with a first arm and a second arm; a linkage piece capable of swinging in a pivoted mode is connected to the box part in a pivoted mode, the linkage piece is provided with an abutting end, and the linkage piece can selectively abut against the cam piece through the abutting end to limit the cam to the position where the rope body is clamped or swing to the position where the second arm is shifted in a pivoted mode, so that the first arm is rotated away from the position where the limiting piece is limited; when the rope limiting device is arranged on a rope body, a user can conveniently place the rope body into the rope groove in a mode of moving and retreating the limiting piece, and the position of the limiting piece is fixed by the locking piece after the limiting wheel abuts against the rope body, so that the rope body which is arranged in the rope groove in a penetrating manner is prevented from accidentally falling out of the rope groove.

Description

Technical Field

[0001] The utility model relates to a safety device, in particular to a rope grabber used for fixing a rope body. Background Art

[0002] The existing rope grab is used for safety belt combination, and the outer shell of the rope grab has a rope opening, a rope groove is arranged on one side of the outer shell corresponding to the opposite sides of the rope opening, and a cam and a limiting wheel are fixedly arranged on the other side. When the rope grab is used, the rope body enters the rope groove from the rope opening, the cam cooperates with the wall surface of the rope groove to clamp the rope body in one direction, and the limiting wheel contacts the rope body to guide the rope body to slide along the rope groove.

[0003] Although the safety belt of the user can be fixed to the rope body by the above-mentioned existing rope grab, and the rope grab can move unidirectionally along the rope body to provide the user with a safety protection effect, since the limiting wheel of the existing rope grab is fixed to the outer shell and extends into the rope placement opening, it will inevitably hinder the rope body from being placed into the rope groove through the rope placement opening, causing the rope grab to be unable to be quickly placed on the rope body. Utility Model Content

[0004] In view of this, an object of the utility model is to provide a rope grab having a limiting wheel that can move forward and backward toward the rope opening, and a safety device that is provided in conjunction with the limiting wheel to prevent the limiting wheel from accidentally retreating, so that the rope grab can be quickly set on the rope body.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a rope grabber, including a shell, a cam member, a limiting member, a locking member, and a linkage member. The shell has a rope seat and a box; the rope seat has a rope groove for a rope body to pass through, and the rope groove passes through the opposite sides of the shell and has a wall. The cam member is pivotally connected to the box and can pivot between a first position and a second position; the cam member has a cam member; when the cam member is in the first position, it clamps the rope body together with the wall. The limiting member is arranged in the box and can move between a third position and a fourth position, and the limiting member has a limiting wheel; when the limiting member is in the third position, the limiting wheel is closer to the rope groove than when the limiting member is in the fourth position, thereby limiting the rope body in the rope groove.

[0006] The locking member is pivotally connected to the box portion and can pivot between a fifth position and a sixth position. The locking member has a first arm and a second arm. When the locking member is in the fifth position, the first arm restricts the limiting member from moving from the third position to the fourth position. A locking member spring is combined between the locking member and the box portion to reset the locking member to the fifth position. The linking member is pivotally connected to the box portion and can pivot between a seventh position and an eighth position. The linking member has a top end and a seat belt coupling portion. When the linking member is in the fifth position, the top end abuts against the cam member to restrict the cam member to the first position. When the linking member is in the sixth position, the second arm is moved to allow the first arm to pivot from the position restricting the limiting member to the sixth position.

[0007] Preferably, a track is formed in the box portion of the utility model, and the box portion has a cover plate, the cover plate has a button through hole, and the two sides of the button through hole have a first section and a second section with a width narrower than the first section; the limiting member has a slider, the slider is movably arranged on the track and has a button groove; a button is accommodated in the button groove, and a button spring is arranged in the button groove to push against the button; the button extends out of the first section, and the button has a neck around it, the neck is staggered with the edge of the second section, and the width of the neck is narrower than the width of the opposite sides of the second section.

[0008] Preferably, the two ends of the slider in the utility model in opposite directions respectively have a limiting wheel seat and a stopping portion, and the limiting wheel is rotatably connected to the limiting wheel seat; the first arm of the locking member points to the stopping portion along the extension direction of the track, limiting the slider of the limiting member from moving from the third position to the fourth position along the track.

[0009] Preferably, the box portion of the utility model has a spring seat at one end of the track away from the rope seat portion; the slider has a limiting member spring groove, the limiting member spring groove has a closed end, a limiting member spring is arranged in the limiting member spring groove, and the two ends of the limiting member spring respectively abut against the closed end and the spring seat.

[0010] Preferably, the rope groove of the utility model has an exit and an entrance at both ends in opposite directions; when the limiting member moves from the fourth position to the third position, the limiting wheel extends from the box portion toward the exit.

[0011] Preferably, the rope groove of the utility model extends along the direction of a rope threading axis, and the opposite directions of the rope threading axis corresponding to the outlet and the inlet are respectively a first direction and a second direction; the cam member has a cam member pivot portion, the cam member pivot portion is pivoted to the box portion, and the cam portion is connected to one side of the cam member pivot portion and has a center of gravity; when the cam member is located at the second position, the center of gravity is located on the side of the cam member pivot portion facing the second direction closer to the rope seat portion.

[0012] Preferably, a cam member spring is combined between the cam member and the box portion of the utility model, and the cam member spring applies a biasing force to the cam member, causing the cam member to tend to pivot toward the first position, and the influence of the biasing force on the pivotal movement of the cam member is smaller than the influence of gravity on the pivotal movement of the cam member.

[0013] Preferably, the rope seat portion of the utility model is connected to a closure seat at one end corresponding to the entrance, and the closure seat has two opposite side plates, and a pair of inclined holes are formed relatively on the two side plates, and the side of the two inclined holes close to the box portion is closer to the entrance, and the other side of the two inclined holes facing away from the box portion is farther away from the entrance; a closure is arranged in the closure seat, and the closure has a guide rod, and both ends of the guide rod are inserted into the two inclined holes; when the closure is pulled by gravity to move along the two inclined holes to a position closer to the box portion, the closure closes the entrance.

[0014] Preferably, the shell of the utility model has a base plate, and the two sides of the base plate are respectively connected to the rope seat portion and the box portion, a rope placement opening is formed between the base plate, the rope seat portion and the box portion, and the portion of the base plate adjacent to the rope seat portion has a rope placement recess; at least part of the cam portion of the cam member extends into the rope placement opening; when the limiting member is in the third position, the limiting wheel extends into the rope placement opening.

[0015] Preferably, the cam member of the utility model moves from the second position to the first position along a rotation direction, and the cam portion has a top surface on the side opposite to the rotation direction for the top end of the linkage member to abut against, thereby limiting the cam member to the first position.

[0016] When the utility model is used, the safety belt coupling portion of the linkage member can be used to fix the safety belt on the user, and when the rope body for climbing a tree or hanging on a bracket is passed through the rope groove of the shell, the rope body is restricted between the wall surface and the limiting wheel, and the cam member can cooperate with the wall surface to clamp and fix the rope body, and the rope groove can slide unidirectionally along the rope groove; during the sliding process of the rope body along the rope groove, it can slide more smoothly along the rope groove under the rotatable guidance of the limiting wheel.

[0017] The effect of the utility model is that, since the limiting member is restricted by the locking member, it will not retreat to the fourth position at will, so that when the rope body is restricted between the wall surface of the rope groove and the limiting wheel and guided by the limiting wheel, it will not be out of the state of contacting the limiting wheel and being restricted by the limiting wheel, thereby preventing the rope body from accidentally escaping from the rope groove. When the shell of the utility model is set on the rope body, by rotating the linkage member to the eighth position, the first arm of the locking member can be pivoted from the position restricting the limiting member to the sixth position, and the limiting member can be moved to the fourth position at this time, preventing the limiting wheel from hindering the rope body from entering the rope groove from between the rope seat part and the box part, so that the rope grabber can be quickly set on the rope body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of a preferred embodiment of the utility model.

[0019] Figure 2 It is an exploded view of the above preferred embodiment of the utility model.

[0020] Figure 3 It is a front view of the above preferred embodiment of the utility model.

[0021] Figure 4 for Figure 3 Cross-sectional view in the 4-4 direction.

[0022] Figure 5 It is a top view of the above preferred embodiment of the utility model.

[0023] Figure 6 for Figure 5 Cross-sectional view in the 6-6 direction.

[0024] Figure 7 This is a front view of the above preferred embodiment of the utility model with the cover removed.

[0025] Figure 8 for Figure 7 Schematic diagram of the action of the linking member moving to the eighth position, the cam member moving to the second position, the locking member moving to the sixth position, and the limiting member moving to the fourth position.

[0026] Fig. 9 The above preferred embodiment of the utility model is adjusted to Figure 8 The state is used to set the action diagram of the rope body.

[0027] Fig.10 It is a schematic diagram of the operation of the above preferred embodiment of the utility model after being placed upside down.

[0028] Description of reference numerals:

[0029] 100: Rope grab

[0030] 10: Shell

[0031] 12: Substrate

[0032] 121: Rope notch

[0033] 14: Rope seat

[0034] 141: Rope groove

[0035] 142: Wall

[0036] 143: Export

[0037] 144: Entrance

[0038] 16: Box

[0039] 161: Bottom plate

[0040] 1611: Track

[0041] 1612: Locking piece pivot seat

[0042] 1613: Spring seat

[0043] 1614: Linkage pivot seat

[0044] 1615: Cam pivot seat

[0045] 162: Sidewall

[0046] 1621: Linkage perforation

[0047] 163: Cover

[0048] 1631: Button punching

[0049] 1632: First paragraph

[0050] 1633: Second paragraph

[0051] 18: Closure seat

[0052] 181: Side panels

[0053] 182: Slanted hole

[0054] 19: Closure

[0055] 191: Guide rod

[0056] 20: Cam parts

[0057] 22: Cam member pivoting portion

[0058] 24: Cam section

[0059] 241: Paw

[0060] 242: Top surface

[0061] 26: Cam spring

[0062] 30: Restricted Parts

[0063] 32: Slider

[0064] 321: Restricted wheel seat

[0065] 322: Stopper

[0066] 323: Restriction Round

[0067] 324: Button slot

[0068] 325: Spring slot for limiting part

[0069] 326: Closed End

[0070] 327: Limiting spring

[0071] 34: Button

[0072] 341: Button spring

[0073] 342: Neck

[0074] 40: Locking piece

[0075] 42: Pivot hole

[0076] 44: First Arm

[0077] 46: Second Arm

[0078] 48: Locking spring

[0079] 50: Linkage

[0080] 52: Push rod

[0081] 521: Reach the top

[0082] 54: Linking member pivotal part

[0083] 56: handle

[0084] 561: Seat belt joint

[0085] 58: Linkage spring

[0086] A: Rope opening

[0087] B: Rope body

[0088] G: Center of gravity

[0089] L: Rope threading shaft

[0090] L1: First direction

[0091] L2: Second direction

[0092] L3: Rotation direction

[0093] S: Assembly space DETAILED DESCRIPTION

[0094] In order to more clearly illustrate the present invention, a preferred embodiment is given below with detailed description in conjunction with the accompanying drawings. Figures 1 to 6 As shown, a rope grab 100 of a preferred embodiment of the utility model comprises a housing 10 and a cam member 20, a limiting member 30, a locking member 40 and a linkage member 50 respectively combined with the housing 10, wherein:

[0095] Please see Figures 1 to 3 As shown, the housing 10 has a base plate 12, and two opposite sides of the base plate 12 are connected to a rope seat 14 and a box 16 respectively, and a rope placement opening A is formed between the base plate 12, the rope seat 14 and the box 16. The rope seat 14 has a rope groove 141, which is a U-shaped groove and extends through the opposite sides of the housing 10 along a rope threading axis L. The rope groove 141 is connected to the rope placement opening A and has a wall surface 142. The rope groove 141 has an outlet 143 and an inlet 144 at two ends located in opposite directions along the rope threading axis L; the rope groove 141 is used to pass the rope body, and the surface of the rope body abuts against the wall surface 142 and passes through the outlet 143 and the inlet 144. The rope threading axis L is the central axis of the rope body that is in a straight state when it is inserted into the rope groove 141. Two opposite directions of the rope threading axis L corresponding to the outlet 143 and the inlet 144 are defined as a first direction L1 and a second direction L2 .

[0096] The rope seat 14 is connected to a closure seat 18 at one end corresponding to the inlet 144. The closure seat 18 has two opposite side plates 181. A pair of inclined holes 182 are formed in the two side plates 181. The two inclined holes 182 are closer to the inlet 144 on the side close to the box 16, and the other side of the two inclined holes 182 away from the box 16 is farther away from the inlet 144. A closure 19 is arranged in the closure seat 18. The closure 19 is a groove wheel and a guide rod 191 is passed through the axis position. Both ends of the guide rod 191 are passed through the two inclined holes 182, so that the closure 19 can be pulled by gravity and move along the two inclined holes 182 to a position to close or open the inlet 144. The base plate 12 has a rope placement recess 121 at a portion adjacent to the rope seat 14. The rope placement recess 121 leads to the rope placement opening A.

[0097] The box portion 16 is opposite to the rope seat portion 14 across the rope placement opening A. The box portion 16 has a bottom plate 161, the bottom plate 161 is connected to the base plate 12, a side wall 162 is connected to the edge of the box portion 16, a cover plate 163 is combined with the side wall 162, and an assembly space S is formed between the bottom plate 161, the side wall 162 and the cover plate 163, and the assembly space S is communicated with the rope placement opening A. The bottom plate 161 has a track 1611 and a locking member pivot seat 1612 on the side corresponding to the first direction L1, the track 1611 is a linear track extending in a direction perpendicular to the rope threading axis L, and a spring seat 1613 is provided at one end of the track 1611 away from the rope seat portion 14, the track 1611 is closer to the rope seat portion 14 than the locking member pivot seat 1612, and in the preferred embodiment, the locking member pivot seat 1612 is a shaft.

[0098] The bottom plate 161 has a linking member pivot seat 1614 on one side corresponding to the second direction L2, and a cam member pivot seat 1615 in the middle of the bottom plate 161. The cam member pivot seat 1615 is located between the track 1611 and the linking member pivot seat 1614. The side wall 162 has a linking member through hole 1621 on the side away from the rope seat 14. The cover plate 163 has a button through hole 1631 at a position corresponding to the track 1611. The button through hole 1631 is a long hole extending in a direction perpendicular to the rope threading axis L. The button through hole 1631 has a first section 1632 and a second section 1633 on two sides in opposite directions. The first section 1632 is closer to the rope seat 14 than the second section 1633 . The width of the second section 1633 on two opposite sides corresponding to the first direction L1 and the second direction L2 is smaller than the width of the first section 1632 on two opposite sides corresponding to the first direction L1 and the second direction L2 .

[0099] Please see Figures 2 to 6 As shown, the cam member 20 is disposed in the assembly space S and has a cam member pivoting portion 22, one side of the cam member pivoting portion 22 is connected to a cam portion 24; Figure 8 As shown, the cam member 20 has a center of gravity G at the cam portion 24. The cam member 20 is pivotally connected to the cam member pivot seat 1615 of the box portion 16 by the cam member pivot portion 22 so as to be pivotable between a first position and a second position; the state of the cam member 20 at the first position is as shown in FIG. Figure 6 As shown, the cam member 20 is in the second position as shown in FIG. Figure 8 As shown, when the cam member 20 is located at the second position, the center of gravity G is located at the side of the cam member pivoting portion 22 that is closer to the rope seat portion 14 in the second direction L2. When the cam member 20 is located at the first position, the portion of the cam portion 24 that extends into the rope placement opening A is larger than the portion of the cam portion 24 that extends into the rope placement opening A when the cam member 20 is located at the second position; and the shortest distance between the cam portion 24 and the deepest part of the wall surface 142 is smaller than the diameter of the rope body; therefore, when the cam portion 24 of the cam member 20 is located at the first position, it can clamp the rope body inserted into the rope groove 141 together with the wall surface 142.

[0100] A cam spring 26 is coupled between the cam member 20 and the bottom plate 161 of the box portion 16. The cam spring 26 applies a biasing force to the cam member 20, causing the cam member 20 to tend to pivot toward the first position. The biasing force has a smaller influence on the pivoting movement of the cam member 20 than gravity. Figure 3 and Figure 6 As shown, the cam member 20 moves from the second position to the first position along a rotation direction L3, and the outer side surface of the cam portion 24 is a concave arc surface and has a plurality of ratchet claws 241. Figure 3 and Figures 7 and 8 As shown, after the cam member 20 moves from the first position to the second position, the corner of the cam portion 24 facing the rotation direction L3 still protrudes from the rope placement opening A, and the front of the corner is concave, which will not hinder the rope body from moving through the rope placement opening A into the rope groove 141; the side of the cam portion 24 opposite to the rotation direction L3 has a top surface 242.

[0101] As described above, the cam member spring 26 applies a biasing force to the cam member 20, so that the cam member 20 tends to pivot toward the first position; Figure 3 and Figures 6 to 8As shown, when a rope is inserted into the rope groove 141, even if the cam member 20 is in the second position, the cam portion 24 of the cam member 20 will slightly pivot toward the rope placement opening A due to the bias force. At this time, if the rope moves along the rope threading axis L relative to the housing 10 in the first direction L1, the friction between the surface of the rope and the outer side surface of the corner or adjacent corner of the cam portion 24 can drive the cam member 20 to continue to rotate in the direction of the first position until the rope is clamped by the cam portion 24 and the wall surface 142. At this time, the housing 10 cannot move along the rope threading axis L relative to the rope in the second direction L2. On the contrary, if the rope moves along the rope threading axis L in the second direction L2, the cam portion 24 of the cam member 20 will be released, so that the cam member 20 will rotate away in the direction of the second position; that is, when the rope is inserted into the rope groove 141, the housing 10 can freely move along the rope threading axis L relative to the rope in the first direction L1.

[0102] Please see Figures 1 to 3 and Figure 6 As shown, the limiting member 30 is disposed in the assembly space S and has a slider 32 and a button 34. The slider 32 has a limiting wheel seat 321 at one end facing the rope seat 14, and a stopper 322 at the other end of the slider 32 away from the rope seat 14. A limiting wheel 323 is rotatably coupled to the limiting wheel seat 321, and the limiting wheel 323 is a groove wheel. The limiting member 30 can move forward and backward between a third position and a fourth position relative to the rope placement port A by setting the slider 32 on the track 1611 of the box portion 16. The state of the limiting member 30 in the third position is shown in FIG. Figure 3 As shown, the state where the limiting member 30 is located at the fourth position is as shown in FIG. Figure 8 The slider 32 has a button slot 324 on one side facing the cover plate 163, and has a limiter spring slot 325 on the other side facing the track 1611. The limiter spring slot 325 has a closed end 326. A limiter spring 327 is disposed in the limiter spring slot 325. Two opposite ends of the limiter spring 327 abut against the closed end 326 and the spring seat 1613, respectively, to push the limiter 30 to the third position.

[0103] When the limiting member 30 is located at the third position, the limiting wheel 323 is closer to the rope groove 141 than when the limiting member 30 is located at the fourth position. The limiting wheel 323 is used to limit the rope body in the rope groove 141. The limiting wheel 323 and the wall surface 142 of the rope groove 141 can cooperate to limit the rope body inserted into the rope groove 141, so as to prevent the rope body from escaping from the rope groove 141. Furthermore, since the limiting wheel 323 is a groove wheel and contacts the rope body, the limiting wheel 323 that contacts the rope body and is rotatable can be used to guide the rope body to slide in the rope groove 141. Specifically, when the limiting member 30 moves from the fourth position to the third position, the limiting wheel 323 extends from the box portion 16 toward the exit 143, so that the limiting wheel 323 extends into the rope placement opening A and contacts the rope body, thereby limiting the rope body in the rope groove 141.

[0104] Continue to view Figures 1 to 3 and Figure 6 As shown, the button 34 is in the shape of a cover body and the inner part is accommodated in the button groove 324, and the inner end of the button 34 is limited in the button groove 324. A button spring 341 is arranged in the button groove 324, and the button spring 341 is used to push the button 34 so that the button 34 extends out of the first section 1632 of the button through hole 1631. The contour around the button 34 is consistent with the size of the first section 1632, and the button 34 has a neck 342 around it. The neck 342 and the edge of the second section 1633 are staggered in the direction in which the button 34 extends out of the first section 1632, and the width of the neck 342 on the opposite sides corresponding to the first direction L1 and the second direction L2 is narrower than the width of the edge of the second section 1633 on the opposite sides corresponding to the first direction L1 and the second direction L2. Through the above-mentioned design, when the limiting member 30 is located in the third position, the button 34 protruding from the first section 1632 is restricted in the position of the first section 1632 and cannot move; the limiting member 30 can be moved to the fourth position only when the user presses the button 34 and the neck 342 moves backward due to the button 34 and faces the edge of the second section 1633 in the direction in which the button 34 extends out of the first section 1632.

[0105] Please see Figures 2 to 3 and Figure 6 As shown, the locking member 40 is disposed in the assembly space S and has a pivot hole 42 in the middle, and is surrounded by a first arm 44 and a second arm 46. The locking member 40 is fitted into the locking member pivot seat 1612 of the box portion 16 with the pivot hole 42 so as to be pivotable between a fifth position and a sixth position; the state of the locking member 40 in the fifth position is shown in FIG. Figure 6As shown, the state where the locking member 40 is located at the sixth position is as shown in FIG. Figure 8 As shown. A locking member spring 48 is combined between the locking member 40 and the bottom plate 161 of the box portion 16. When the locking member 40 rotates away from the fifth position, the locking member spring 48 is used to restore the locking member 40 to the fifth position. The first arm 44 of the locking member 40 points to the stopper 322 of the slider 32 along the extension direction of the track 1611, and the second arm 46 extends toward the second direction L2; therefore, as shown in FIG. Figure 6 and Figure 7 As shown, when the locking member 40 is located at the fifth position, the first arm 44 restricts the restriction member 30 from moving from the third position to the fourth position.

[0106] Please see Figures 1 to 3 and Figure 6 As shown, the linkage 50 is a long rod and has a push rod 52, a linkage pivot portion 54 and a handle 56 connected in sequence; the push rod 52 and the linkage pivot portion 54 of the linkage 50 extend into the assembly space S, the push rod 52 has a push top 521 at one end facing the rope seat portion 14, and the handle 56 has a safety belt coupling portion 561 at one end away from the rope seat portion 14; in this preferred embodiment, the safety belt coupling portion 561 is a rope threading hole. The linkage 50 is pivotally connected to the linkage pivot seat 1614 of the box portion 16 by the linkage pivot portion 54 and can be pivoted between a seventh position and an eighth position, and the handle 56 passes outward from the linkage through hole 1621 of the box portion 16, so that the safety belt coupling portion 561 is located outside the box portion 16 for coupling with the safety belt. A linking spring 58 is coupled between the linking pivot portion 54 and the bottom plate 161 of the box portion 16 . When the linking spring 58 rotates away from the seventh position, the linking spring 58 is used to restore the linking spring 58 to the seventh position.

[0107] like Figure 6 As shown, when the linkage member 50 is located at the seventh position, the abutting top 521 abuts against the abutting surface 242 of the cam member 20, thereby limiting the cam member 20 to the first position. Figure 8As shown, when the linkage 50 is located at the eighth position, the second arm 46 of the locking member 40 is moved by the handle 56, so that the locking member 40 rotates clockwise and drives the first arm 44 to pivot from the fifth position to the sixth position, so that the first arm 44 rotates from the fifth position that restricts the limiting member 30 to the sixth position that does not restrict the limiting member 30. Therefore, the locking member 40 releases the limiting member 30, and the user can press the button 34 to move the limiting member 30 to the fourth position so that the limiting wheel 323 moves into the box portion 16, as shown in FIG. Figure 8 and Fig. 9 As shown, by the way that the limiting wheel 323 no longer extends into the rope placement opening A, it is avoided that the limiting wheel 323 hinders the rope body from moving from the rope placement opening A to the rope groove 141 of the rope seat portion 14.

[0108] When the rope grab 100 of the present invention needs to be installed on the rope body, please refer to Figure 1 and Figures 7 to 9 As shown, the safety belt is first coupled to the safety belt coupling portion 561 of the linkage 50, and then the rope placement opening A of the housing 10 needs to be opened so that the rope body B can enter the rope groove 141 of the rope seat portion 14 through the rope placement opening A. In the process of opening the rope placement opening A of the housing 10, the user first pulls the handle 56 of the linkage 50 to rotate the linkage 50 counterclockwise from the seventh position to the eighth position, at which time the abutting top 521 of the linkage 50 leaves the position abutting the abutting surface 242, and the handle 56 moves the second arm 46 of the locking member 40.

[0109] When the abutting surface 242 of the cam member 20 is no longer abutted by the abutting top end 521 of the linkage member 50, the center of gravity G of the cam member 20 is pulled by gravity to rotate the cam member 20 counterclockwise from the first position to the second position, so that the portion of the cam portion 24 other than the corner of the cam portion 24 in the rotation direction L3 moves into the assembly space S of the box portion 16. When the handle 56 moves the second arm 46 of the locking member 40, the locking member 40 rotates clockwise from the fifth position to the sixth position, and the first arm 44 of the locking member 40 pivots from the fifth position that restricts the limiting member 30 to the sixth position, releasing the limiting member 30. At this time, the user can press the button 34 of the limiting member 30 to align the neck 342 with the edge of the second section 1633, and then push the button 34 to move from the position of the first section 1632 to the second section 1633. At this time, the slider 32 moves along the track 1611 toward the locking member 40, so that the limiting member 30 moves from the fifth position to the sixth position. The limiting wheel 323 moves with the slider 32 into the assembly space S of the box portion 16, thereby opening the rope opening A of the housing 10.

[0110] When the rope opening A of the housing 10 is opened, please refer to Figures 8 to 9 As shown, the user holds the housing 10, tilts the housing 10 relative to the rope body B, fits the rope placement notch 121 of the housing 10 onto the rope body B, and then moves the housing 10 forward to allow the rope body B to pass through the rope placement opening A and enter the rope groove 141 of the rope seat 14. Then, the user releases the button 34. Figure 6 As shown, the limiting member spring 327 pushes the slider 32 back to the third position; Figure 7 and Fig. 9 As shown, at this time, the limiting wheel 323 moves into the rope placement opening A and abuts against the rope body B, and the locking member 40 is also reset to the fifth position, thus completing the operation of placing the rope grab 100 of the present invention on the rope body B.

[0111] When the rope grab 100 of the utility model is used, Figure 3 As shown, the housing 10 is arranged in such a manner that the first direction L1 faces upwards and the second direction L2 faces downwards, that is, towards the ground. Figure 8 The status becomes Fig.10When the cam member 20 is located at the second position, the center of gravity G is located at the side of the cam member pivoting portion 22 that is closer to the rope seat portion 14 in the second direction L2. Therefore, when the housing 10 is turned upside down, the center of gravity G of the cam member 20 is pulled by gravity to rotate clockwise to the first position to close the rope placement opening A. At the same time, the closing member 19 is also pulled by gravity to slide the guide rod 191 along the inclined hole 182 to the position where the closing member 19 closes the entrance 144, so that the rope body cannot pass through the rope placement opening A and the entrance 144 is placed in the rope groove 141, thereby preventing the housing 10 from being set on the rope body in the wrong direction.

[0112] The above description is only a preferred feasible embodiment of the present utility model. Any equivalent changes made by applying the specification and claims of the present utility model should be included in the patent scope of the present utility model.

Claims

1. A rope grab, characterized in that: include: A housing having a rope seat and a box; the rope seat having a rope groove for a rope body to pass through, the rope groove passing through two opposite sides of the housing and having a wall surface; a cam member, pivotally connected to the box portion and capable of pivoting between a first position and a second position; the cam member has a cam portion; when the cam member is at the first position, it clamps the rope body together with the wall surface; a limiting member, disposed on the box portion and movable between a third position and a fourth position, the limiting member having a limiting wheel; when the limiting member is located at the third position, the limiting wheel is closer to the rope groove than when the limiting member is located at the fourth position, thereby limiting the rope body in the rope groove; a locking member, pivotally connected to the box portion and capable of pivoting between a fifth position and a sixth position, the locking member having a first arm and a second arm, and when the locking member is located at the fifth position, the first arm restricts the restriction member from moving from the third position to the fourth position; a locking member spring is combined between the locking member and the box portion to reset the locking member to the fifth position; as well as A linkage is pivotally connected to the box portion and can pivot between a seventh position and an eighth position, the linkage having a top abutting end and a safety belt coupling portion; when the linkage is located at the seventh position, the top abutting end abuts against the cam member to limit the cam member to the first position; when the linkage is located at the eighth position, the second arm is moved to allow the first arm to pivot from the position that limits the limiting member toward the sixth position.

2. The rope grab according to claim 1, characterized in that: A track is formed in the box part, and the box part has a cover plate, the cover plate has a button through hole, and the two sides of the button through hole have a first section and a second section narrower than the first section; the limiting member has a slider, the slider is movably arranged on the track and has a button groove; A button is accommodated in the button groove, and a button spring is arranged in the button groove to resist the button; the button extends out of the first section, and has a neck around it, the neck is staggered with the edge of the second section, and the width of the neck is narrower than the width of the opposite sides of the second section.

3. The rope grab according to claim 2, characterized in that: The two ends of the slider in opposite directions respectively have a limiting wheel seat and a stopping portion, and the limiting wheel is rotatably connected to the limiting wheel seat; the first arm of the locking member points to the stopping portion along the extension direction of the track, limiting the slider of the limiting member from moving from the third position to the fourth position along the track.

4. The rope grab according to claim 2, characterized in that: The box portion has a spring seat at one end of the track away from the rope seat portion; the slider has a limiting member spring groove, the limiting member spring groove has a closed end, a limiting member spring is arranged in the limiting member spring groove, and the two ends of the limiting member spring respectively abut against the closed end and the spring seat.

5. The rope grab according to claim 1, characterized in that: The two ends of the rope groove in opposite directions are provided with an exit and an entrance; when the limiting member moves from the fourth position to the third position, the limiting wheel extends from the box portion toward the exit.

6. The rope grab according to claim 5, characterized in that: The rope groove extends along the direction of a rope threading axis, and the opposite directions of the rope threading axis corresponding to the outlet and the inlet are respectively a first direction and a second direction; the cam member has a cam member pivot portion, the cam member pivot portion is pivotally connected to the box portion, and the cam portion is connected to one side of the cam member pivot portion and has a center of gravity; when the cam member is located at the second position, the center of gravity is located on the side of the cam member pivot portion facing the second direction closer to the rope seat portion.

7. The rope grab according to claim 6, characterized in that: A cam spring is combined between the cam member and the box portion, and the cam spring applies a biasing force to the cam member, causing the cam member to tend to pivot toward the first position, and the influence of the biasing force on the pivotal movement of the cam member is smaller than the influence of gravity on the pivotal movement of the cam member.

8. The rope grab according to claim 5, characterized in that: The rope seat portion is connected to a closure seat at one end corresponding to the entrance, and the closure seat has two opposite side plates, and two inclined holes are formed relatively on the two side plates, and the two inclined holes are closer to the entrance on the side close to the box portion, and the other side of the two inclined holes facing away from the box portion is farther away from the entrance; a closure is arranged in the closure seat, and the closure has a guide rod, and both ends of the guide rod are inserted into the two inclined holes; when the closure is pulled by gravity to move along the two inclined holes to a position closer to the box portion, the closure closes the entrance.

9. The rope grab according to claim 8, characterized in that: The housing has a base plate, and the two sides of the base plate are respectively connected to the rope seat portion and the box portion, a rope placement opening is formed between the base plate, the rope seat portion and the box portion, and a portion of the base plate adjacent to the rope seat portion has a rope placement recess; at least part of the cam portion of the cam member extends into the rope placement opening; when the limiting member is located at the third position, the limiting wheel extends into the rope placement opening.

10. The rope grab according to claim 1, characterized in that: The cam member moves from the second position to the first position along a rotation direction. The cam portion has a top-butting surface on a side opposite to the rotation direction for the top-butting surface of the linkage member to abut against, thereby limiting the cam member to the first position.

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