Steel wire rope locking device

Abstract

The utility model provides a steel wire rope locking device which comprises a left sleeve, a conical plug, balls, a spring, an extension piece and a right sleeve, a conical hole section is arranged in the left sleeve, the conical plug comprises a conical section, the conical section is provided with at least two ball holes, the balls are movably matched with the ball holes, the extension piece comprises threads with opposite rotating directions, and the right sleeve is provided with a spring. The left end and the right end of the extending part are in threaded fit with the left sleeve and the right sleeve respectively, the conical plug is extruded through elastic force of the spring and moves towards the conical hole section of the left sleeve, the balls on the conical plug can be pushed due to narrowing of the conical inner wall of the conical hole section of the left sleeve, and the balls move towards the center of the conical plug and get close to one another. Therefore, the steel wire rope penetrating through the locking device is extruded, and the locking effect is achieved. The locking device is simple in locking operation, can be locked by using a common tool, and can be operated by a common user.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking device technical field, in particular to a steel wire rope locking device. BACKGROUND

[0002] The steel wire rope locking device has very wide application, for example, some balustrade developers try to use horizontal steel wire or steel wire rope to form balustrade according to building specification, and the locking device of steel wire rope is involved, and the locking device of steel wire rope is also involved on some elevator equipment or hoisting equipment. SUMMARY

[0003] Therefore, the utility model provides a steel wire rope locking device for at least one of the above problems.

[0004] The utility model adopts the following scheme to realize:

[0005] The utility model discloses a steel wire rope locking device, characterized in that comprising:

[0006] The left sleeve is hollow cylindrical structure, the inside of left sleeve is equipped with taper hole section, smooth section and first internal thread section who sets gradually, is equipped with first through -hole in the first end of left sleeve, first through -hole can be used to wear steel wire rope, the first through -hole connects the small diameter end of taper hole section, the large diameter end of taper hole section connects smooth section, first internal thread section extends to the second end of left sleeve;

[0007] The taper plug is displaceable in the inside of left sleeve, and the taper plug is provided with a second center through -hole penetrating the taper plug along the axial direction, and the taper plug comprises a taper section which is adapted to the taper hole section of the left sleeve.

[0008] The ball is movable in the ball hole, and the number of balls corresponds to the number of ball holes.

[0009] an extension piece, the extension piece being provided with a first outer threaded section and a second outer threaded section, the first outer threaded section being adapted to the first inner threaded section, the first outer threaded section and the second outer threaded section being located at two ends of the extension piece away from each other, the first outer threaded section and the second outer threaded section having opposite screw directions;

[0010] a spring, two ends of the spring abutting against the conical plug and the extension piece respectively; and

[0011] a right sleeve, the right sleeve comprising a right sleeve body and a stopper provided at a first end of the right sleeve body, the right sleeve further being provided with a second inner threaded section, the second inner threaded section extending inwardly from a second end of the right sleeve body, the second outer threaded section being adapted to the second inner threaded section.

[0012] wherein, in one embodiment, the ball hole has an outer diameter D1 facing the outer tapered surface of the tapered section, and an inner diameter D2 facing the second central through hole, and the diameter of the ball is defined as D, then D1>D>D2.

[0013] wherein, in one embodiment, the conical plug further comprises a circular ring section, the circular ring section being connected to the small-diameter end of the tapered section, the circular ring section being adapted to the first through hole.

[0014] wherein, in one embodiment, the conical plug further comprises a spring positioning ring, the spring positioning ring being provided at an end face of the large-diameter end of the tapered section, the extension piece further being provided with a spring positioning groove at one end facing the first outer threaded section, the spring positioning ring and the spring positioning groove positioning two ends of the spring respectively.

[0015] wherein, in one embodiment, the first end of the left sleeve is provided with a limiting part.

[0016] wherein, in one embodiment, the limiting part has a hexagonal cross section.

[0017] wherein, in one embodiment, the stopper is provided with an actuating structure for rotationally actuating the right sleeve; the actuating structure being a polygonal groove provided on the stopper.

[0018] wherein, in one embodiment, the stopper is provided with an actuating structure for rotationally actuating the right sleeve; the stopper being a polygonal structure, the polygonal edges of the stopper forming the actuating structure.

[0019] wherein, in one embodiment, the ball holes are uniformly distributed along the outer peripheral surface of the tapered section.

[0020] In one embodiment, the outer diameter of the left sleeve is equal to the outer diameter of the right sleeve body of the right sleeve.

[0021] The technical scheme has the following technical effects:

[0022] The utility model provides a steel wire rope locking device, including left sleeve, taper plug, ball, spring, extension piece and right sleeve, the inside of left sleeve is equipped with taper hole section, taper plug includes taper section, taper section is equipped with at least two ball holes, ball is movable cooperation in ball hole, extension piece includes opposite screw thread, and the left and right ends of extension piece are respectively screwed with left sleeve and right sleeve, and the taper plug is moved to the taper hole section of left sleeve through the spring elasticity extrusion, and the ball on the taper plug is pushed because the taper inner wall of taper hole section of left sleeve is narrow, and a plurality of balls move to the center of taper plug and approach each other, thereby extruding the steel wire rope of inside passing of locking device, reach locking effect. The locking device locking operation is simple, and ordinary tool can be locked, and general user can operate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the explosion map of the steel wire rope locking device of the utility model embodiment;

[0024] Figure 2 It is the perspective view of the steel wire rope locking device of the embodiment;

[0025] Figure 3 It is the full cross-sectional view of the steel wire rope locking device of the embodiment;

[0026] Figure 4 It is the perspective view of the left sleeve of the embodiment;

[0027] Figure 5 It is the full cross-sectional view of the left sleeve of the embodiment;

[0028] Figure 6 It is the perspective view of the taper plug of the embodiment;

[0029] Figure 7 It is the full cross-sectional view of the taper plug of the embodiment;

[0030] Figure 8 It is Figure 7 the cross-sectional view of A-A section in;

[0031] Figure 9 It is the perspective view of the extension piece of the embodiment;

[0032] Figure 10 It is the full cross-sectional view of the extension piece of the embodiment;

[0033] Figure 11is a perspective view of the right sleeve of this embodiment;

[0034] Figure 12 is a full cross-sectional view of the right sleeve of this embodiment;

[0035] Figure 13 is a cross-sectional view of the steel wire rope locking device connected to the upright of this embodiment. DETAILED DESCRIPTION

[0036] To further illustrate the embodiments, the drawings are provided. These drawings are part of the disclosure of the present application, which mainly serve to illustrate the embodiments, and can be used in conjunction with the relevant description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0037] The present application will be further described in conjunction with the drawings and specific embodiments.

[0038] As shown in the drawings, Figures 1-13 The present embodiment provides a steel wire rope locking device 1. In particular with reference to Figure 13 , the steel wire rope locking device 1 can be used to be installed in a through hole 3 on a railing upright 2 to connect a steel wire rope 4 to the railing upright 2. The steel wire rope locking device 1 includes a left sleeve 10, a tapered plug 20, a ball 30, a spring 40, an extension piece 50, and a right sleeve 60.

[0039] The left sleeve 10 is a hollow cylindrical structure, and a first end of the left sleeve 10 is provided with a limiting portion 11, which can be limited so as to limit the rotation of the left sleeve 10. For example, in the present embodiment, the limiting portion 11 is limited by the clamping of a mounting tool; the cross section of the limiting portion 11 is hexagonal, and the mounting tool can be a wrench or a special mounting tool, but is not limited thereto. The cross section of the limiting portion 11 can be other non-circular shapes, such as a quadrilateral cross section of the limiting portion 11. The limiting portion 11 can play a better limiting role, but in some other embodiments, the limiting portion 11 can be omitted, and the outer circumferential surface of the left sleeve 10 can be clamped by a tool to limit the left sleeve 10.

[0040] The inside of the left sleeve 10 includes a tapered hole section 13, a smooth section 14, and a first internal thread section 15 arranged in sequence. A first through hole 12 is provided at the first end of the left sleeve 10, the first through hole 12 connects the small diameter end of the tapered hole section 13, and the first through hole 12 can be used to pass through the steel wire rope 4. The large diameter end of the tapered hole section 13 is connected to the smooth section 14. The first internal thread section 15 extends to the second end of the left sleeve 10. The first end and the second end are two opposite ends of the left sleeve 10.

[0041] With reference to Figures 1-3 , Figures 6-8 , the tapered plug 20 is movably arranged in the left sleeve 10. In the embodiment, the tapered plug 20 comprises a circular ring segment 21, a tapered segment 22 and a spring positioning ring 23. The circular ring segment 21 is connected to the small-diameter end of the tapered segment 22, and the spring positioning ring 23 is arranged on the end face of the large-diameter end of the tapered segment 22. The tapered segment 22 is arranged to be matched with the tapered hole segment 13 of the left sleeve 10. The tapered plug 20 is provided with a second central through hole 24 penetrating the tapered plug 20 in the axial direction, and the tapered segment 22 is provided with a plurality of ball holes 25 extending inward from the outer tapered surface of the tapered segment 22 to communicate with the second central through hole 24. The ball holes 25 can cooperate with the balls 30, so that the balls 30 can be movably matched with the ball holes 25. In the embodiment, the ball holes 25 are provided with three, but not limited to this, the ball holes 25 can be provided with two; or the ball holes 25 are provided with four or more, which will make the tapered plug 20 have a larger volume. The circular ring segment 21 can be matched with the first through hole 12, thereby playing a guiding role for the movement of the tapered plug 20 in the left sleeve 10. In other embodiments, the circular ring segment 21 and the spring positioning ring 23 can also not be arranged.

[0042] With reference to Figures 6-8 , in the embodiment, the ball holes 25 have an outer diameter D1 facing the outer tapered surface of the tapered segment 22, and an inner diameter D2 facing the second central through hole 24. Defining the diameter of the ball 30 as D, preferably D1>D>D2, that is, the ball hole 25 is a tapered hole, thereby facilitating the installation of the ball 30 in the ball hole 25.

[0043] With reference to Figures 1-3 , Figure 9 , Figure 10 , the extension piece 50 is provided with a first outer threaded segment 51 and a second outer threaded segment 52. The first outer threaded segment 51 can be matched with the first inner threaded segment 15. The first outer threaded segment 51 and the second outer threaded segment 52 are respectively located at two ends of the extension piece 50 away from each other, and the screw directions of the first outer threaded segment 51 and the second outer threaded segment 52 are opposite. For example, the first outer threaded segment 51 is left-handed thread, and the second outer threaded segment 52 is right-handed thread; or vice versa. The length of the second outer threaded segment 52 is greater than that of the first outer threaded segment 51. The extension piece 50 is also provided with a third central through hole 53 penetrating the extension piece 50 in the axial direction. The two ends of the spring 40 respectively abut against the tapered plug 20 and the extension piece 50. The end of the extension piece 50 facing the first outer threaded segment 51 is also provided with a spring positioning groove 54. The spring positioning ring 23 and the spring positioning groove 54 respectively position the two ends of the spring 40.

[0044] With reference to Figures 1-3 , Figure 11 , Figure 12The right sleeve 60 comprises a right sleeve body 61 and a stopper 62 arranged at the first end of the right sleeve body 61. The diameter of the stopper 62 is greater than the diameter of the through hole 3 on the railing post 2, so as to limit the position of the steel wire rope locking device 1 on the railing post 2. The stopper 62 is provided with an actuating structure 63 which can be used to rotate and actuate the right sleeve 60. In the embodiment, the actuating structure 63 is a polygonal groove 63, such as a hexagonal groove, arranged on the stopper 62. However, it is not limited thereto. In other embodiments, the stopper 62 is integrally formed as a polygonal structure, and the polygonal edge of the stopper 62 forms the actuating structure 63. Alternatively, in other embodiments, the actuating structure 63 can also be other non-circular structures. However, in other embodiments, the actuating structure 63 can also not be provided, and the right sleeve 60 is clamped by a tool to achieve rotation and actuation of the right sleeve 60.

[0045] In the embodiment, a second internal thread segment 64 is further arranged in the right sleeve 60 and extends inwardly from the second end of the right sleeve body 61. The second external thread segment 52 can be adapted to the second internal thread segment 64.

[0046] When installing, the balls 30 are loaded into the ball holes 25 of the conical plug 20, and preferably, the balls 30 are coated with butter (with viscosity) to facilitate the loading of the balls 30 into the ball holes 25. The conical plug 20 is placed into the left sleeve 10, and then the spring 40 is placed in, and then the extension piece 50 is screwed into the left sleeve 10, at this time the spring 40 will squeeze the conical plug 20 to move towards the conical hole section 13 of the left sleeve 10, and the balls 30 on the conical plug 20 will be pushed due to the narrowing of the conical inner wall of the conical hole section 13 of the left sleeve 10, and the balls 30 will move towards the center of the conical plug 20 and approach each other. At this time, the steel wire rope 4 can be threaded in the locking device 1, and the balls 30 move towards the center of the conical plug 20 and squeeze the steel wire rope 4 threaded in the locking device 1, achieving the effect of locking the steel wire rope 4. Then the right sleeve 60 is screwed into the extension piece 50, at this time it can not be tightened. The preliminarily assembled locking device 1 is installed into the through hole 3 of the stand 2, and the steel wire rope 4 can also not be threaded into the locking device 1 in the previous operation process, but is threaded into the locking device 1 at this time, and the limiting part 11 of the left sleeve 10 is fixed on the left side of the stand 2 with a tool, and the polygonal slot 63 of the right sleeve 60 is inserted into the right side of the stand 2 with a tool, and the right sleeve 60 is rotated and tightened, because the extension piece 50 includes threads with opposite rotation directions, during the rotation process, the left sleeve 10 and the right sleeve 60 at the left and right ends of the extension piece 50 move horizontally in opposite directions / away from each other. Therefore, when the right sleeve 60 is rotated from one direction, the rotation of the threads of the right sleeve 60 will drive the rotation of the extension piece 50, so that the threads of the extension piece 50 are further screwed into the left sleeve 10, thereby further locking the steel wire rope 4. After locking the steel wire rope 4, continuing to rotate the right sleeve 60 can achieve the effect of tensioning the steel wire rope 4. The locking operation of the locking device 1 is simple, and ordinary tools can be used for locking, and general users can operate.

[0047] After installation is completed, the only part of the locking device 1 that is exposed outside the stand 2 is the stop part 62 of the right sleeve 60.

[0048] Preferably, the ball holes 25 are uniformly distributed along the outer circumferential surface of the conical section 22, which is more balanced for the clamping force of the steel wire rope 4.

[0049] Preferably, the outer diameter of the left sleeve 10 is equal to the outer diameter of the right sleeve body 61 of the right sleeve 60, and here the equal includes strict equality and approximate equality, thereby facilitating the locking device 1 to pass through the through hole 3 of the stand 2.

[0050] When the steel wire rope 4 needs to be taken out, the left end of the conical plug 20 is pushed by a hollow tool inserted into the left sleeve 10, so that the conical plug 20 moves away from the conical hole section 13 of the left sleeve 10, and the balls 30 loosen the steel wire rope 4, and the steel wire rope 4 can be easily pulled out, so that the unlocking operation of the steel wire rope 4 is also very convenient.

[0051] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A wire rope locking device, characterized in that, include: The left sleeve is a hollow cylindrical structure. Inside the left sleeve, there are a tapered hole section, a smooth section and a first internal thread section arranged in sequence. A first through hole is provided at the first end of the left sleeve. The first through hole can be used to pass through a steel wire rope. The first through hole is connected to the small diameter end of the tapered hole section. The large diameter end of the tapered hole section is connected to the smooth section. The first internal thread section extends to the second end of the left sleeve. A conical plug is disposed displaceably inside the left sleeve. The conical plug has a second central through hole extending axially through the conical plug. The conical plug includes a conical section, which is configured to fit the conical hole section of the left sleeve. The conical section has at least two ball bearing holes, which extend inward from the outer conical surface of the conical section to communicate with the second central through hole. Ball bearings, which are movably fitted into the ball bearing holes, and the number of ball bearings corresponds to the number of ball bearing holes; An extension member is provided with a first external thread section and a second external thread section. The first external thread section can be adapted to the first internal thread section. The first external thread section and the second external thread section are respectively located at two mutually distant ends on the extension member. The helical directions of the first external thread section and the second external thread section are opposite. A spring, the two ends of which respectively abut against the conical plug and the extension; and The right sleeve includes a right sleeve body and a stop portion disposed at a first end of the right sleeve body; the right sleeve also has a second internal thread section, the second internal thread section extending inward from the second end of the right sleeve body, and the second external thread section being adaptable to the second internal thread section.

2. The wire rope locking device according to claim 1, characterized in that: The ball bearing hole has an outer diameter D1 facing the outer conical surface of the conical segment and an inner diameter D2 facing the second central through hole. The diameter of the ball bearing is defined as D, then D1>D>D2.

3. The wire rope locking device according to claim 1, characterized in that: The tapered plug also includes an annular segment connected to the small-diameter end of the tapered segment, and the annular segment can mate with the first through hole.

4. The wire rope locking device according to claim 1, characterized in that: The tapered plug also includes a spring positioning ring, which is located on the end face of the large-diameter end of the tapered section; the extension is also provided with a spring positioning groove at one end facing the first external thread section, and the spring positioning ring and the spring positioning groove respectively position the two ends of the spring.

5. The wire rope locking device according to claim 1, characterized in that: The first end of the left sleeve is provided with a limiting part.

6. The wire rope locking device according to claim 5, characterized in that: The cross-section of the limiting part is hexagonal.

7. The wire rope locking device according to claim 1, characterized in that: The stop portion is provided with an actuation structure that can be used to rotate and actuate the right sleeve; the actuation structure is a polygonal groove provided on the stop portion.

8. The wire rope locking device according to claim 1, characterized in that: The stop portion is provided with an actuation structure that can be used to rotate and actuate the right sleeve; the stop portion is a polygonal structure, and the polygonal edges of the stop portion form the actuation structure.

9. The wire rope locking device according to claim 1, characterized in that: The ball bearing holes are evenly distributed along the outer circumferential surface of the tapered section.

10. The wire rope locking device according to claim 1, characterized in that: The outer diameter of the left sleeve is equal to the outer diameter of the right sleeve body of the right sleeve.

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