Traction rope anti-pulling device

Abstract

The present invention discloses a traction rope anti-pull device, which includes: a first connecting seat and a second connecting seat, wherein a locking column is installed in the middle of the other end surface of the first connecting seat, the outer wall of the locking column is recessed inward to form a first annular groove, and the other end surface of the second connecting seat is recessed inward to form a first positioning groove, and a plurality of first positioning holes are opened on the side wall of the first positioning groove, and a first steel ball is installed at the end of each first positioning hole close to the first positioning groove, and a first hexagon socket bolt is installed at the end of each first positioning hole away from the first positioning groove, and a first spring is abutted between the first hexagon socket bolt and the corresponding first steel ball; the locking column extends into the first positioning groove, and the first steel balls in the plurality of first positioning holes are clamped in the first annular groove. The present invention adopts a straight-insert and twist-insert locking structure, which locks firmly and can be separated quickly.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-pull devices, and in particular to an anti-pull device for a traction rope. Background Art

[0002] During engineering construction, many auxiliary materials are used, among which traction rope is one of them. Since the working principle of traction rope belongs to the traction force in physics, the transportation process is completed by means of external force.

[0003] In order to ensure the safe use of the traction rope during use, an anti-pull device is used. However, the existing anti-pull device has a complex overall structure and can withstand a small pulling force, which does not meet the requirements.

[0004] Therefore, those skilled in the art have provided a traction rope anti-pull device to solve the problems raised in the above background technology. Summary of the Invention

[0005] The invention provides a traction rope anti-pull device which adopts a straight-insert, twist-insert, lock, and straight-pull structure and has small dimensions, firm locking, and quick separation.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] Traction rope anti-pull device, including:

[0008] A first connecting seat, wherein a middle portion of one end surface of the first connecting seat protrudes outwardly to form a first square protrusion, a first through hole is formed in the middle portion of a side surface of the first square protrusion, and a locking column is installed in the middle portion of the other end surface of the first connecting seat, and an outer wall of the locking column is recessed inwardly to form a first annular groove;

[0009] a second connecting seat, wherein the middle portion of one end surface of the second connecting seat protrudes outward to form a second square protrusion, the middle portion of the side surface of the second square protrusion is provided with a second through hole, the other end surface of the second connecting seat is recessed inward to form a first positioning groove, a plurality of first positioning holes are provided on the side wall of the first positioning groove, a first steel ball is provided on the end portion of each first positioning hole close to the first positioning groove, a first hexagon socket bolt is installed on the end portion of each first positioning hole away from the first positioning groove, and a first spring is abutted between the first hexagon socket bolt and the corresponding first steel ball;

[0010] The locking column extends into the first positioning groove, and the first steel balls in the plurality of first positioning holes are clamped in the first annular groove.

[0011] Furthermore, a first bayonet ring is provided at the intersection of the first positioning hole and the first positioning groove, and the two ends of the first bayonet ring are respectively connected to the first positioning hole and the first positioning groove. The diameter of the first bayonet ring is smaller than the diameter of the first steel ball. The first steel ball is arranged in the corresponding first positioning hole, and the first steel ball is partially extended out of the bayonet ring through the corresponding first spring.

[0012] Furthermore, the locking column has a locking block at the end away from the first connecting seat, the diameter of the locking block is smaller than the diameter of the locking column, and the outer wall of the locking block is recessed inward to form a second annular groove.

[0013] Furthermore, a plurality of third positioning grooves are provided between the end of the locking column away from the first connecting seat and the first annular positioning groove, and the plurality of third positioning grooves are arranged along the circumference of the locking column.

[0014] Furthermore, the bottom of the first positioning groove is recessed inward to form a second positioning groove, and a second positioning hole is provided on the side wall of the second positioning groove corresponding to the first positioning hole. A second steel ball is provided at the end of the second positioning hole close to the second positioning groove, and a second hexagon socket bolt is installed at the end of the second positioning hole away from the second positioning groove, and a second spring is abutted between the second hexagon socket bolt and the corresponding second steel ball.

[0015] Furthermore, the locking block extends into the second positioning groove, and the second steel ball in the second positioning hole is clamped in the second annular groove.

[0016] Furthermore, a second bayonet ring is provided at the intersection of the second positioning hole and the second positioning groove, and the two ends of the second bayonet ring are respectively connected to the second positioning hole and the second positioning groove. The diameter of the second bayonet ring is smaller than the diameter of the second steel ball. The second steel ball is arranged in the corresponding first positioning hole, and the second steel ball is partially extended out of the second bayonet ring through the corresponding second spring.

[0017] Furthermore, the locking block has a plurality of first-degree positioning grooves between the end away from the locking column and the second annular groove, and a plurality of fourth positioning grooves are arranged along the circumference of the locking block.

[0018] Furthermore, the end surface of the second connecting seat close to the first connecting seat is recessed inward to form a locking through hole, and the locking through hole is located on one side of the first positioning groove. A retractable locking pin is provided in the locking through hole, and the end of the locking pin close to the second square protrusion is fixed by a hexagon socket screw, and the end of the locking pin away from the second square protrusion extends out of the locking through hole.

[0019] Furthermore, there is an annular protrusion on the end of the locking hole close to the first connecting seat, the diameter of the annular protrusion is smaller than the diameter of the locking hole, and part of the locking pin can extend out of the annular protrusion and can extend into the third positioning hole on the first connecting seat.

[0020] In the above technical solution, the traction rope anti-pull device provided by the present invention has the following beneficial effects:

[0021] 1. The axial connection is achieved by the engagement between the first annular groove on the locking column and the first steel ball, and the engagement between the second annular groove on the locking block and the second steel ball. The radial connection is achieved by inserting the locking pin into the third positioning hole.

[0022] 2. It adopts straight-insert, twist-lock and straight-pull structure, which has the characteristics of small size, firm locking and quick separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of a locked state of a traction rope anti-pull device provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 One of the cross-sectional views;

[0026] Figure 3 for Figure 1 The second cross-sectional view of .

[0027] Description of reference numerals:

[0028] 100, first connecting seat; 101, first square protrusion; 102, first through hole; 103, locking post; 104, first annular groove; 105, locking block; 106, second annular groove; 107, third positioning groove; 108, fourth positioning groove;

[0029] 200, second connecting seat; 201, second square protrusion; 202, second through hole; 203, first positioning groove; 204, first positioning hole; 205, first steel ball; 206, first hexagon socket bolt; 207, first spring; 208, first bayonet ring; 209, second positioning groove; 210, second positioning hole; 211, second steel ball; 212, second hexagon socket bolt; 213, second spring; 214, second bayonet ring; 215, locking through hole; 216, locking pin; 217, annular ridge. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-3 As shown;

[0032] The traction rope anti-pull device according to an embodiment of the present invention includes:

[0033] A first connecting base 100, wherein the middle portion of one end surface of the first connecting base 100 protrudes outward to form a first square protrusion 101, and a first through hole 102 is formed in the middle portion of the side surface of the first square protrusion 101. A locking column 103 is installed in the middle portion of the other end surface of the first connecting base 100, and the outer wall of the locking column 103 is recessed inward to form a first annular groove 104. A traction rope can pass through the first through hole 102 and be tied to the first connecting base;

[0034] A second connecting base 200, wherein the middle portion of one end surface of the second connecting base 200 protrudes outward to form a second square protrusion 201, and the middle portion of the side surface of the second square protrusion 201 is provided with a second through hole 202. The other end surface of the second connecting base 200 is recessed inward to form a first positioning groove 203. A plurality of first positioning holes 204 are provided on the side wall of the first positioning groove 203. A first steel ball 205 is provided at the end of each first positioning hole 204 close to the first positioning groove 203. A first hexagon socket head bolt 206 is installed at the end of each first positioning hole 204 away from the first positioning groove 203. A first spring 207 is abutted between the first hexagon socket head bolt 206 and the corresponding first steel ball 205. Another traction rope can pass through the second through hole 202 and be tied to itself;

[0035] The locking post 103 is inserted into the first positioning groove 203. The locking post 103 squeezes the first steel ball 205 in each first positioning hole 204 and retracts it into the positioning hole 204. When the first annular groove 104 on the locking post 103 moves to the position of the first steel ball 205, each first steel ball 205 is partially extended and locked in the first annular groove 104 under the action of the corresponding first spring 207. Then, the two traction ropes are respectively passed through the first through hole 102 and the second through hole 202 and tied to themselves to complete the assembly.

[0036] A first bayonet ring 208 is provided at the intersection of the first positioning hole 204 and the first positioning groove 203. The two ends of the first bayonet ring 208 are respectively connected to the first positioning hole 204 and the first positioning groove 203. The diameter of the first bayonet ring 208 is smaller than that of the first steel ball 205. The first steel ball 205 is disposed in the corresponding first positioning hole 204 and is partially extended from the first bayonet ring 208 by the corresponding first spring 207. Under the action of the first bayonet ring 208 and the first spring 207, the first steel ball 205 can be partially extended from the first bayonet ring 208. The first steel ball 205 can be retracted into the first positioning hole 204 under the action of an external force, thereby facilitating overall assembly.

[0037] The locking post 103 has a plurality of third positioning grooves 107 between the end away from the first connecting seat 100 and the first annular groove 104. These third positioning grooves 107 are arranged along the circumference of the locking post 103. The number of these third positioning grooves 107 is the same as the number of first steel balls 205 within the first positioning groove 203, and their positions correspond one-to-one. The depth of the third positioning grooves 107 is less than that of the first annular groove 104. The third positioning grooves 107 engage with corresponding first steel balls 205 and maintain positioning during assembly of the first and second connecting seats 100, 200.

[0038] The locking post 103 has a locking block 105 at the end away from the first connecting base 100. The locking block 105 has a smaller diameter than the locking post 103. The outer wall of the locking block 105 is recessed inward to form a second annular groove 106. The bottom of the first positioning groove 203 is recessed inward to form a second positioning groove 209. The sidewalls of the second positioning groove 209 are each provided with a second positioning hole 210 corresponding to the first positioning hole 204. The end of the second positioning hole 210 near the second positioning groove 209 is provided with a second steel ball 211. The end of the second positioning hole 210 away from the second positioning groove 209 is mounted with a second hexagon socket head bolt 212. A second spring 213 abuts between the second hexagon socket head bolt 212 and the corresponding second steel ball 211. The locking block 105 extends into the second positioning groove 209, and the second steel ball 211 in the second positioning hole 210 is retained in the second annular groove 106. The first connecting seat 100 and the second connecting seat 200 are further fixed by the cooperation between the second steel ball 211 and the second annular groove 106 , which can effectively prevent the two from separating along the axial direction.

[0039] A second bayonet ring 214 is provided at the intersection of the second positioning hole 210 and the second positioning groove 209. The two ends of the second bayonet ring 214 are respectively connected to the second positioning hole 210 and the second positioning groove 209. The diameter of the second bayonet ring 214 is smaller than the diameter of the second steel ball 211. The second steel ball 211 is arranged in the corresponding second positioning hole 210, and the corresponding second spring 213 is used to make the second steel ball 211 partially extend out of the second bayonet ring 214.

[0040] Under the action of the second bayonet ring 214 and the second spring 213, the second steel ball 211 can partially extend out of the second bayonet ring 214, and the second steel ball 211 can be retracted into the second bayonet ring 214 under the action of external force, which facilitates overall assembly.

[0041] The locking block 105 has a plurality of fourth positioning grooves 108 between the end away from the locking post 103 and the second annular groove 106. These fourth positioning grooves 108 are arranged along the circumference of the locking block 105. The number of these fourth positioning grooves is the same as the number of second steel balls 211 within the second positioning grooves 209, and their positions correspond one-to-one. The fourth positioning grooves 108 are less than the depth of the second positioning grooves 209. The fourth positioning grooves 108 engage with corresponding second steel balls 211 and maintain positioning during assembly of the first and second connecting bases 100 and 200.

[0042] The end surface of the second connecting base 200 near the first connecting base 100 is recessed inward to form a locking through-hole 215. The locking through-hole 215 is located on one side of the first positioning groove 203. A retractable locking pin 216 is disposed within the locking through-hole 215. The end of the locking pin 216 near the second square protrusion 201 is secured to the locking through-hole 215 by a hexagon socket screw (not shown). The end of the locking pin 216 away from the second square protrusion 201 extends out of the locking through-hole 215. The end of the locking through-hole 215 near the first connecting base 100 has an annular ridge 217. The diameter of the annular ridge 217 is smaller than the diameter of the locking through-hole 215. A portion of the locking pin 216 can extend beyond the annular ridge 217 and into the third positioning hole 109 on the first connecting base 100.

[0043] The locking pin 216 is extended into the third positioning hole 109 to limit the rotation between the first connecting seat 100 and the second connecting seat 200. Through the cooperation between the second annular groove 106 and the second steel ball 211 and the cooperation between the first annular groove 104 and the first steel ball 205, the connection strength between the first connecting seat 100 and the second connecting seat 200 can be effectively guaranteed, so that the two cannot be separated and remain in a locked state to achieve an anti-pull function.

[0044] The specific assembly steps are as follows:

[0045] 1. Inspection and confirmation before assembly;

[0046] Before assembly, check and confirm that the hexagon socket screw of the second connecting seat 200 of the device of the present application has been tightened so that the locking pin 216 is in a pre-tightened state in the axial direction. At this time, the end of the locking pin 216 extends out of the second connecting seat 200;

[0047] Lightly press the locking pin 216 axially, and the locking pin 216 can be retracted into the second connecting seat 200 and not protrude above the end surface of the second connecting seat 200; release the force, and the locking pin 216 can be reset. At this time, the locking pin is in a pre-tightened state;

[0048] 2. Install the first connecting base 100 into the second connecting base 200;

[0049] The locking post 103 and the locking block 105 of the first connecting base 100 are respectively inserted into the first positioning groove 203 and the second positioning groove 209 of the second connecting base 200, and at the same time, the locking pin 216 is positioned opposite the third positioning hole 109; until the first annular groove 104 on the locking post 103 is engaged with the first steel ball 205, and the second annular groove 106 of the locking block 105 is engaged with the second steel ball 211;

[0050] 3. Radial locking;

[0051] Rotate the first connecting seat 100 so that the locking pin 216 is inserted into the third positioning hole 109, and the assembly is completed. Then, the two traction ropes are respectively passed through the first through hole 102 and the second through hole 202, and tied to themselves; the two traction ropes can also be tied to the corresponding pull rings, and the two pull rings are respectively connected to the first square protrusion 101 and the second square protrusion 201 by screws, and one screw passes through the first square protrusion and one end of the corresponding pull ring, the first through hole 102, and the other end of the corresponding pull ring in sequence, and is fixed by a nut, and the outside of the nut is fixed by an open pin inserted into the screw; another screw passes through the second square protrusion and one end of the corresponding pull ring, the second through hole 202, and the other end of the corresponding pull ring in sequence, and is fixed by a nut, and the outside of the nut is fixed by an open pin inserted into the screw.

[0052] The fact that the first and second connectors 100, 200, cannot rotate radially relative to each other during the aforementioned process indicates that the device is fully assembled and locked. In this locked state, the first and second connectors 100, 200 cannot separate under a force of less than 1000N, maintaining a locked state to prevent pullout.

[0053] If the first connecting seat 100 and the second connecting seat 200 need to be separated, there are two methods. One is to apply an axial pulling force in the range of 1000N to 1500N on the pull ring to completely separate the first connecting seat 100 and the second connecting seat 200; the other is to use an Allen wrench to unscrew the Allen screw to disengage the locking pin 216 from the third positioning hole, rotate the first connecting seat 100 or the second connecting seat 200, so that the third positioning groove 107 of the device is opposite to the first steel ball 205, and the fourth positioning groove 108 is opposite to the second steel ball 209, so that the device can be easily separated.

[0054] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. The traction rope anti-pull device is characterized by: include: A first connecting seat (100), wherein the middle portion of one end surface of the first connecting seat (100) protrudes outward to form a first square protrusion (101), a first through hole (102) is provided in the middle portion of the side surface of the first square protrusion (101), a locking column (103) is installed in the middle portion of the other end surface of the first connecting seat (100), and the outer wall of the locking column (103) is recessed inward to form a first annular groove (104); A second connecting seat (200), wherein the middle portion of one end face of the second connecting seat (200) protrudes outward to form a second square protrusion, and the middle portion of the side face of the second square protrusion (201) is provided with a second through hole (202), and the other end face of the second connecting seat (200) is recessed inward to form a first positioning groove (203), and a plurality of first positioning holes (204) are provided on the side wall of the first positioning groove (203), and a first steel ball (205) is provided on the end of each first positioning hole (204) close to the first positioning groove (203), and a first hexagon socket bolt (206) is installed on the end of each first positioning hole (204) away from the first positioning groove (203), and a first spring (207) is abutted between the first hexagon socket bolt (206) and the corresponding first steel ball (205); The locking column (103) extends into the first positioning groove (203), and the first steel balls (205) in the plurality of first positioning holes (204) are clamped in the first annular groove (104); The locking column (103) has a locking block (105) at the end away from the first connecting seat (100), the diameter of the locking block (105) is smaller than the diameter of the locking column (103), and the outer wall of the locking block (105) is recessed inward to form a second annular groove (106); The bottom of the first positioning groove (203) is recessed inward to form a second positioning groove (209), and a second positioning hole (210) is provided on the side wall of the second positioning groove (209) corresponding to the first positioning hole (204), and a second steel ball (211) is provided on the end of the second positioning hole (210) close to the second positioning groove (209), and a second hexagon socket bolt (212) is installed on the end of the second positioning hole (210) away from the second positioning groove (209), and a second spring (213) is abutted between the second hexagon socket bolt (212) and the corresponding second steel ball (211); The locking block (105) extends into the second positioning groove (209), and the second steel ball (211) in the second positioning hole (210) is clamped in the second annular groove (106); The end surface of the second connecting seat (200) close to the first connecting seat (100) is recessed inward to form a locking through hole (215), and the locking through hole (215) is located on one side of the first positioning groove (203). A retractable locking pin (216) is provided in the locking through hole (215), and the end of the locking pin (216) close to the second square protrusion (201) is fixed by a hexagon socket screw, and the end of the locking pin (216) away from the second square protrusion (201) extends out of the locking through hole (215).

2. The traction rope anti-pull device according to claim 1, characterized in that: A first bayonet ring (208) is provided at the intersection of the first positioning hole (204) and the first positioning groove (203), and the two ends of the first bayonet ring (208) are respectively connected to the first positioning hole (204) and the first positioning groove (203). The diameter of the first bayonet ring (208) is smaller than the diameter of the first steel ball (205). The first steel ball (205) is arranged in the corresponding first positioning hole (204), and the first steel ball (205) is partially extended out of the first bayonet ring (208) through the corresponding first spring (207).

3. The traction rope anti-pull device according to claim 2, characterized in that: A plurality of third positioning grooves (107) are provided between the end of the locking column (103) away from the first connecting seat (100) and the first annular groove (104), and the plurality of third positioning grooves (107) are arranged along the circumference of the locking column (103).

4. The traction rope anti-pull device according to claim 3, characterized in that: A second bayonet ring (214) is provided at the intersection of the second positioning hole (210) and the second positioning groove (209), and both ends of the second bayonet ring (214) are respectively connected to the second positioning hole (210) and the second positioning groove (209), and the diameter of the second bayonet ring (214) is smaller than the diameter of the second steel ball (211), and the second steel ball (211) is arranged in the corresponding second positioning hole (210), and the second steel ball (211) is partially extended out of the second bayonet ring (214) through the corresponding second spring (213).

5. The traction rope anti-pull device according to claim 1, characterized in that: A plurality of fourth positioning grooves (108) are provided between the end of the locking block (105) away from the locking column (103) and the second annular groove (106), and the plurality of fourth positioning grooves (108) are arranged along the circumference of the locking block (105).

6. The traction rope anti-pull device according to claim 1, characterized in that: The locking through hole (215) has an annular ridge (217) at the end close to the first connecting seat (100), and the diameter of the annular ridge (217) is smaller than the diameter of the locking through hole (215). A portion of the locking pin (216) can extend out of the annular ridge (217) and can extend into the third positioning hole (109) on the first connecting seat (100).

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