Steel wire rope locking device and handrail system

Abstract

The utility model provides a steel wire rope locking device and a handrail system, the steel wire rope locking device comprises a left sleeve, a tapered plug, a ball, a spring, an extension piece, a right sleeve, an outer sleeve and a separation blade, the separation blade is used for locking and connecting the outer sleeve to the side wall of a stand column, and the outer sleeve and the left sleeve are in threaded connection and fastened, so that the locking device is installed on the stand column. The locking device and the stand column form a firm whole, and the installed locking device and stand column can avoid the problem that parts in the locking device loosen and fall off during transportation. When the steel wire rope locking device is used, a steel wire rope can penetrate into the locking device, the balls move towards the center of the conical plug and extrude the steel wire rope penetrating into the locking device, the effect of locking the steel wire rope is achieved, and the locking device is simple in locking operation and can be operated by a common user.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking device technical field, especially a kind of steel wire rope locking device and the balustrade system comprising the steel wire rope locking device. BACKGROUND

[0002] The steel wire rope locking device is widely used, for example, some balustrade developers try to use horizontal steel wire or steel wire rope to form balustrade according to building specification, which involves the locking device of steel wire rope. Some elevator equipment or hoisting equipment also involves the locking device of steel wire rope. When building a steel wire rope balustrade system, many accessories are needed, including stand, locking device, decorative accessory, installation tool, installation tool includes hydraulic clamp, clamping tool, wrench, etc. Some existing steel wire rope locking devices need to be installed and connected by machine or special installation tool. In most cases, the steel wire rope locking device has the disadvantage of inconvenient installation. Ordinary users or even semi-skilled technicians will find it difficult or impossible to install, which greatly limits the promotion and use of the steel wire rope locking device in its field.

[0003] In addition, the locking device is not guided or instructed during installation. The installer may cause the metal parts of the entire locking device to scatter due to incorrect rotation direction during installation. Also, during transportation after pre-assembly, the problem of scattered parts may occur, which greatly affects the product experience of customers.

[0004] In addition, in order to further improve the aesthetics of the balustrade system, the locking device is considered to be built-in in the stand. During installation, no more tools and accessories are needed. Only the steel wire rope is inserted into the locking device of the stand, and the installation is completed by locking with a hex wrench. This has been the pursuit of the industry. SUMMARY

[0005] Therefore, the utility model provides a steel wire rope locking device and a balustrade system to solve at least one of the above problems.

[0006] The utility model adopts the following scheme to realize:

[0007] The utility model provides a steel wire rope locking device, characterized by comprising:

[0008] A left sleeve is a hollow cylindrical structure, the inside of the left sleeve is provided with a tapered hole section, a smooth section and a first internal thread section connected in sequence, a first through hole is provided at the first end of the left sleeve, the first through hole can be used for passing 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, and the outer circumferential surface of the left sleeve is provided with a third external thread;

[0009] A tapered plug is movably arranged in the inside of the left sleeve, the tapered plug is provided with a second central through hole penetrating the tapered plug in the axial direction, the tapered plug comprises a tapered section which is arranged to be matched with the tapered hole section of the left sleeve, and the tapered section is provided with at least two ball holes which extend inwardly from the outer tapered surface of the tapered section to communicate with the second central through hole;

[0010] A plurality of balls are movably matched in the ball holes, the number of the balls corresponds to the number of the ball holes;

[0011] An extension piece is provided with a first external thread section and a second external thread section, the first external thread section can be matched with the first internal thread section, the first external thread section and the second external thread section are respectively located at two ends of the extension piece which are away from each other, and the screw directions of the first external thread section and the second external thread section are opposite;

[0012] A spring is arranged at two ends of the tapered plug and the extension piece respectively; and

[0013] A right sleeve comprises a right sleeve body and a stopper arranged at the first end of the right sleeve body, the diameter of the stopper is greater than the diameter of the first column through hole on the railing column, a second internal thread section is further arranged in the right sleeve, the second internal thread section extends inwardly from the second end of the right sleeve body, and the second external thread section can be matched with the second internal thread section;

[0014] An outer sleeve comprises an outer sleeve body, a clamping portion and a screwing portion connected in sequence, a third internal thread is arranged in the outer sleeve body, the third internal thread can be matched and screwed with the third external thread, the outer sleeve is provided with a fourth through hole penetrating the outer sleeve in the axial direction, the clamping portion can be clamped and matched with the second column through hole of the column, and the screwing portion is provided with a fourth external thread;

[0015] A stop sheet is provided with a fourth internal thread, the fourth internal thread can be matched and screwed with the fourth external thread to connect the outer sleeve to the side wall of the column.

[0016] Wherein, in one embodiment, the clamping portion is a cylindrical shape with a positioning surface.

[0017] Wherein, in one embodiment, the positioning surface is provided with two, two said positioning surface is provided opposite, the second column through hole is able to with the two said positioning surface clamping portion of the two clamping surface.

[0018] Wherein, in one embodiment, the ball hole has an outer diameter D1 towards the outer tapered surface of the tapered section, and an inner diameter D2 towards the second center through hole, defining the diameter of the ball as D, then D1>D>D2.

[0019] Wherein, in one embodiment, the tapered plug further comprises a circular ring section, the circular ring section is connected to the small diameter end of the tapered section, the circular ring section can be matched with the first through hole.

[0020] Wherein, in one embodiment, the tapered plug further comprises a spring positioning ring, the spring positioning ring is provided on the end face of the large diameter end of the tapered section; the end of the extension piece towards the first external thread section is further provided with a spring positioning groove, the spring positioning ring and the spring positioning groove respectively position the two ends of the spring.

[0021] Wherein, in one embodiment, the ball hole is uniformly distributed along the outer peripheral surface of the tapered section.

[0022] Wherein, in one embodiment, the outer diameter of the left sleeve is equal to the outer diameter of the right sleeve body.

[0023] The utility model further provides a kind of handrail system, it is characterized in that, including steel wire rope, stand and the steel wire rope locking device as any preceding one, the stand is hollow structure, the stand has opposite two side walls, opposite two side walls are respectively provided with first column through hole and second column through hole, the steel wire rope locking device can be installed on the stand by the first column through hole and the second column through hole, to connect the steel wire rope on the stand.

[0024] Wherein, in one embodiment, the first column through hole is a circular hole, and the second column through hole is a square hole.

[0025] Through the technical scheme provided by the utility model, the following technical effects are achieved:

[0026] 1. The utility model provides a steel wire rope locking device and railing system, steel wire rope locking device includes left sleeve, taper plug, ball, spring, extension piece, right sleeve, outer sleeve and baffle, uses the baffle and locks the outer sleeve connection in the lateral wall of stand, outer sleeve is connected with left sleeve screw thread and is fastened, to install locking device in stand, locking device and stand form firm whole, the locking device that installed with stand can avoid the problem that locking device internal part rotates loose and falls in transportation. When using, only need to pass into locking device in steel wire rope, can reach the effect of locking steel wire rope, locking device locking operation is simple, general user uses simple tool can operate.

[0027] 2. The inside of left sleeve is equipped with taper hole section, taper plug includes taper section, taper section is equipped with at least 2 ball holes, ball movable cooperation is in ball hole, extension piece includes opposite screw thread, extension piece left and right two ends are respectively screwed with left sleeve and right sleeve, through the spring force extrusion of taper plug, taper plug moves towards the taper hole section of left sleeve, the ball on taper plug will be pushed because the taper inner wall of taper hole section of left sleeve narrows, multiple balls move towards the center of taper plug and approach each other, thereby extruding the steel wire rope that passes in locking device inside, reaches locking effect, locking device locking operation is simple. DRAWINGS

[0028] Figure 1 It is the perspective view of the railing system of the utility model embodiment;

[0029] Figure 2 It is the explosion view of the railing system of this embodiment hides part stand;

[0030] Figure 3 It is the full cutaway view of the railing system of this embodiment;

[0031] Figure 4 It is the perspective view of the taper plug of this embodiment;

[0032] Figure 5 It is the full cutaway view of the taper plug of this embodiment;

[0033] Figure 6 It is Figure 5 The section view of A-A section in;

[0034] Figure 7 It is the perspective view of the extension piece of this embodiment;

[0035] Figure 8 It is the full cutaway view of the extension piece of this embodiment;

[0036] Figure 9 It is the perspective view of the right sleeve of this embodiment;

[0037] Figure 10 This is a full sectional view of the right sleeve in this embodiment;

[0038] Figure 11 This is a perspective view of the left sleeve in this embodiment;

[0039] Figure 12 This is a full sectional view of the left sleeve of this embodiment;

[0040] Figure 13 This is a perspective view of the outer sleeve of this embodiment;

[0041] Figure 14 This is a full sectional view of the outer sleeve of this embodiment;

[0042] Figure 15 This is a perspective view of the column in this embodiment;

[0043] Figure 16 This is a perspective view of the baffle in this embodiment;

[0044] Figure 17 This is a schematic diagram illustrating the process of connecting the wire rope locking device to the column in this embodiment. Detailed Implementation

[0045] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0046] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0047] like Figures 1-17 As shown, this embodiment provides a guardrail system, including a wire rope, a wire rope locking device 1a, and a post 2a. Specifically, refer to... Figures 1-3 , Figure 15 The post 2a has a hollow structure and two opposing side walls. A first post through hole 3a and a second post through hole 3b are respectively provided on the opposing side walls. The wire rope locking device 1a can be installed on the post 2a through the first post through hole 3a and the second post through hole 3b to connect the wire rope to the post 2a. The wire rope locking device 1a includes a left sleeve 10, a conical plug 20, a ball bearing 30, a spring 40, an extension 50, a right sleeve 60, an outer sleeve 70, and a baffle 80.

[0048] Reference Figures 1-3 , Figures 11-12The left sleeve 10 is a hollow cylindrical structure, and the inside of the left sleeve 10 comprises a conical hole section 13, a smooth section 14 and a first internal thread section 15 arranged in sequence. A first through hole 12 is arranged at the first end of the left sleeve 10, the first through hole 12 is connected to the small-diameter end of the conical hole section 13, and the first through hole 12 can be used to pass through the steel wire rope. The large-diameter end of the conical 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. The outer circumferential surface of the left sleeve 10 is provided with a third external thread 16.

[0049] Referring to Figures 1-3 , Figures 4-6 The conical plug 20 is arranged in the inside of the left sleeve 10 in a displaceable manner. In this embodiment, the conical plug 20 comprises a circular ring section 21, a conical section 22 and a spring positioning ring 23. The circular ring section 21 is connected to the small-diameter end of the conical section 22, and the spring positioning ring 23 is arranged on the end face of the large-diameter end of the conical section 22. The conical section 22 is arranged to be matched with the conical hole section 13 of the left sleeve 10. The conical plug 20 is provided with a second central through hole 24 which penetrates the conical plug 20 in the axial direction, and the conical section 22 is provided with a plurality of ball holes 25 which extend inwardly from the outer conical surface of the conical section 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 this embodiment, the ball holes 25 are provided with three ball holes, but are not limited to this, the ball holes 25 can be provided with two ball holes; or, the ball holes 25 are provided with four or more ball holes, which will make the conical plug 20 have a larger volume. The circular ring section 21 can cooperate with the first through hole 12, thereby playing a guiding role for the movement of the conical plug 20 in the inside of the left sleeve 10. In other embodiments, the circular ring section 21 and the spring positioning ring 23 can also not be arranged.

[0050] Referring to Figures 4-6 In this embodiment, the ball holes 25 have an outer diameter D1 facing the outer conical surface of the conical section 22, and an inner diameter D2 facing the second central through hole 24. The diameter of the balls 30 is defined as D, and preferably D1>D>D2, that is, the ball holes 25 are conical holes, thereby facilitating the installation of the balls 30 in the ball holes 25.

[0051] Referring to Figures 1-3 , Figure 7 , Figure 8The extension member 50 is provided with a first outer threaded section 51 and a second outer threaded section 52. The first outer threaded section 51 is adapted to be engaged with the first inner threaded section 15. The first outer threaded section 51 and the second outer threaded section 52 are located at two ends of the extension member 50 respectively, and the screwing directions of the first outer threaded section 51 and the second outer threaded section 52 are opposite. For example, the first outer threaded section 51 is left-handed thread, and the second outer threaded section 52 is right-handed thread; or vice versa. The length of the second outer threaded section 52 is greater than that of the first outer threaded section 51. The extension member 50 is further provided with a third central through hole 53 which penetrates the extension member 50 in the axial direction. The two ends of the spring 40 abut against the tapered plug 20 and the extension member 50 respectively. The extension member 50 is further provided with a spring positioning groove 54 at one end of the first outer threaded section 51. The spring positioning ring 23 and the spring positioning groove 54 position the two ends of the spring 40 respectively.

[0052] With reference to Figures 1-3 , Figure 9 , Figure 10 The right sleeve 60 comprises a right sleeve body 61 and a stopper 62 provided at the first end of the right sleeve body 61. The diameter of the stopper 62 is greater than that of the first column through hole 3a on the railing column 2a, so that the right sleeve 60 is limited on the railing column 2a.

[0053] In the embodiment, the right sleeve 60 is further provided with a second inner threaded section 64 which extends inwardly from the second end of the right sleeve body 61. The second outer threaded section 52 is adapted to be engaged with the second inner threaded section 64.

[0054] With reference to Figures 1-3 , Figures 11-14 The outer sleeve 70 comprises an outer sleeve body 71, a clamping portion 72 and a screwing portion 73 which are connected in sequence. The outer sleeve body 71 is provided with a third inner thread 75 which is adapted to be engaged with the third outer thread 16. The outer sleeve 70 is provided with a fourth through hole 74 which penetrates the outer sleeve 70 in the axial direction.

[0055] In the embodiment, the clamping portion 72 is a columnar shape with positioning faces 721. The positioning faces 721 are provided in two, and the two positioning faces 721 are arranged oppositely. However, it is not limited to this. The cross section of the clamping portion 72 can be non-circular. For example, in some other embodiments, the cross section of the clamping portion 72 is square or other polygonal shape.

[0056] The second column through hole 3b is adapted to be clamped with the clamping portion 72 of the outer sleeve 70. In the embodiment, the second column through hole 3b is a square hole, so that the second column through hole 3b is adapted to be clamped with the two positioning faces 721 of the clamping portion 72.

[0057] The screwing part 73 is provided with a fourth external thread 731, the blocking piece 80 is provided with a fourth internal thread 81, the fourth external thread 731 can be screwed with the fourth internal thread 81 to connect the outer sleeve 70 to the side wall of the stand column 2a.

[0058] When installing, the balls 30 are loaded into the ball holes 25 of the tapered plug 20, preferably, the balls 30 are coated with butter (with viscosity) to facilitate the loading of the balls 30 into the ball holes 25. The tapered plug 20 is placed into the left sleeve 10, 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 tapered plug 20 to move towards the tapered hole section 13 of the left sleeve 10, the balls 30 on the tapered plug 20 will be pushed because the tapered inner wall of the tapered hole section 13 of the left sleeve 10 narrows, and the plurality of balls 30 move towards the center of the tapered plug 20 and close to each other. Then the right sleeve 60 is screwed into the extension piece 50 to obtain a preliminarily assembled locking device, at this time the locking device has not yet been connected with the outer sleeve 70 and the blocking piece 80, as shown in Figure 17 .

[0059] Continuing to refer to Figure 17 , the clamping part 72 of the outer sleeve 70 is clamped and matched with the second stand column through hole 3b, and the screwing part 73 is exposed outside the stand column 2a. The outer sleeve 70 is locked and connected to the side wall of the stand column 2a using the blocking piece 80, the preliminarily assembled locking device is passed through the first stand column through hole 3a of the stand column 2a, and the outer sleeve 70 is threadedly connected with the left sleeve 10 and fastened, so as to install the locking device 1a to the stand column 2a, and the locking device 1a and the stand column 2a form a firm whole. The installed locking device 1a and the stand column 2a can be directly transported, and the problem of rotation loosening and falling of the internal parts of the locking device 1a is avoided.

[0060] When in use, only the steel wire rope 4 needs to be passed into the locking device 1, and the plurality of balls 30 move towards the center of the tapered plug 20 and squeeze the steel wire rope 4 passed in the locking device 1, so as to achieve the effect of locking the steel wire rope 4. During the operation, a wrench is used to make fine adjustment through the right sleeve 60 at the right end. The locking operation of the locking device 1 is simple, and a general user can operate using a simple tool.

[0061] Preferably, the ball holes 25 are uniformly distributed along the outer circumferential surface of the tapered section 22, which is more balanced for the clamping force of the steel wire rope.

[0062] 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 the equal here includes strict equality and approximate equality, so as to facilitate the locking device 1 to pass through the first stand column through hole 3a of the stand column 2a.

[0063] When the steel wire rope needs to be taken out, the left end of the conical plug 20 is pushed into the left sleeve 10 through the hollow tool, the conical plug 20 is moved away from the conical hole section 13 of the left sleeve 10, the ball 30 is loosened, and the steel wire rope can be easily pulled out, so that the unlocking operation of the steel wire rope is also very convenient.

[0064] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, those skilled in the art should understand 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 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. At the first end of the left sleeve, there is a first through hole for threading a steel wire rope. The first through hole is connected to the small diameter end of the tapered hole section, and 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, and the outer circumferential surface of the left sleeve is provided with a third external thread. 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 the first end of the right sleeve body. The diameter of the stop portion is larger than the diameter of the first post through hole on the railing post. The right sleeve is also provided with a second internal thread section, which extends inward from the second end of the right sleeve body. The second external thread section can be adapted to the second internal thread section. The outer sleeve includes an outer sleeve body, a snap-fit ​​part, and a screw-fit part connected in sequence. The outer sleeve body is provided with a third internal thread, which can be screwed into the third external thread. The outer sleeve is provided with a fourth through hole that axially penetrates the outer sleeve. The snap-fit ​​part can be snapped into the second through hole of the column. The screw-fit part is provided with a fourth external thread. The baffle is provided with a fourth internal thread, which can be screwed into the fourth external thread to connect the outer sleeve to the side wall of the column.

2. The wire rope locking device according to claim 1, characterized in that: The snap-fit ​​part is a cylindrical shape with a positioning surface.

3. The wire rope locking device according to claim 2, characterized in that: The positioning surface is provided in two ways, and the two positioning surfaces are arranged opposite to each other. The second column through hole is a square hole that can engage with the two positioning surfaces of the snap-fit ​​part.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. A railing system, characterized in that, The device includes a wire rope, a column, and a wire rope locking device as described in any one of claims 1-8. The column is a hollow structure with opposite side walls. A first column through hole and a second column through hole are respectively provided on the opposite side walls. The wire rope locking device can be installed on the column through the first column through hole and the second column through hole to connect the wire rope to the column.

10. The railing system according to claim 9, characterized in that: The first column through hole is a round hole, and the second column through hole is a square hole.

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