Swing rigid separation frame

Abstract

The utility model discloses a swinging rigid separation frame which comprises a cable clamp, a connecting rod and a connecting rod, the separation frame assembly comprises a rotating shaft, a locking piece, a knuckle bearing and two arch-shaped frames, each arch-shaped frame is provided with at least two free arms connected at one end, rotating holes are formed in the positions, connected with the free arms, of the arch-shaped frames, the two arch-shaped frames are arranged back to back in the mode that the free arms face outwards, and the two ends of the rotating shaft are inserted into the rotating holes of the two arch-shaped frames respectively; the rotating shaft is rotationally matched with the rotating hole, locking pieces are arranged at the two ends of the rotating shaft, and knuckle bearings are arranged between the locking pieces and the arch-shaped frame; wherein the free end of the free arm is provided with a cable clamp. Multi-dimensional damping is provided for the inhaul cable, the frequency of the inhaul cable is adjusted, and shock absorption and vibration suppression are conducted on the cable net.

Description

Technical Field

[0001] The utility model relates to the field of prestressing, in particular to a swinging rigid partition frame. Background Art

[0002] Cables are slender structural members, which are easily vibrated by external excitations such as wind, rain, and beam and tower vibrations. In order to suppress the vibration of cables, measures such as installing dampers and auxiliary cables are often adopted in engineering. Dampers absorb and convert the vibration energy of the bridge to reduce the vibration amplitude, thereby ensuring the stability of the bridge. Auxiliary cables connect the cables into a cable network to increase the resistance to vibration. However, commonly used dampers or auxiliary cables can usually only provide shock absorption in one dimension along their own length, while the vibration of cables is multi-dimensional. The vibration dimension of the cable and the shock absorption dimension of the damping usually cannot overlap, resulting in poor suppression effect of damping or auxiliary cables on multi-dimensional vibration. Utility Model Content

[0003] The utility model aims to provide a swinging rigid spacer, which provides multiple-dimensional damping for the cable, adjusts the cable frequency, and reduces shock and vibration of the cable net.

[0004] A swinging rigid spacer comprises: a cable clamp; a spacer assembly, wherein the spacer assembly comprises a rotating shaft, a locking piece, a joint bearing, and two bow frames, wherein the bow frame is provided with at least two free arms connected at one end, and the bow frame is provided with a rotating hole at the connection between the free arms, and the two bow frames are arranged back to back with the free arms facing outward, and the two ends of the rotating shaft are respectively inserted into the rotating holes of the two bow frames, and the rotating shaft is rotatably matched with the rotating holes, and the locking pieces are provided at both ends of the rotating shaft, and the joint bearing is provided between the locking piece and the bow frame; wherein the free end of the free arm is provided with the cable clamp.

[0005] In one embodiment, the swinging rigid partition also includes a first rebound member, and the rotating shaft includes a left rotating shaft and a right rotating shaft arranged at intervals, the first end of the left rotating shaft is inserted into the rotating hole of one of the bow-shaped frames, and the first end of the right rotating shaft is inserted into the rotating hole of another of the bow-shaped frames, and the left rotating shaft and the right rotating shaft are connected via the first rebound member.

[0006] In one embodiment, the rotating shaft also includes an outer sleeve, an inner sleeve, and a sleeve cover. The second end of the left rotating shaft is connected to the first end of the outer sleeve, the second end of the right rotating shaft is connected to the first end of the inner sleeve, the second end of the inner sleeve is inserted into the outer sleeve from the second end of the outer sleeve, the outer wall of the second end of the inner sleeve is provided with a convex step, the second end of the outer sleeve is installed with the sleeve cover, the sleeve cover limits the convex step, and the first rebound member is arranged in the outer sleeve and the inner sleeve.

[0007] In one embodiment, the end surface of the first end of the outer sheath is provided with a concave first cover body, the first cover body forms a first connecting hole on a side facing the left rotating shaft, the first cover body forms a first step on a side facing away from the left rotating shaft, the left rotating shaft is inserted into the first connecting hole, and the first rebound piece is sleeved outside the first step; or\and, the end surface of the first end of the inner sheath is provided with a concave second cover body, the second cover body forms a second connecting hole on a side facing the right rotating shaft, the second cover body forms a second step on a side facing away from the right rotating shaft, the right rotating shaft is installed in the second connecting hole, and the rebound piece is sleeved outside the second step.

[0008] In one embodiment, the outer end surface of the first end of the outer sheath is arc-shaped; or, the outer end surface of the first end of the inner sheath is arc-shaped.

[0009] In one embodiment, the first resilient member is in a compressed state.

[0010] In one embodiment, a locking rod is provided between the two free arms of the bow-shaped frame.

[0011] In one of the embodiments, the bow frame is provided with a groove, and the joint bearing is embedded in the groove.

[0012] In one of the embodiments, a second resilient member is provided between the spherical bearing and the locking member.

[0013] In one embodiment, the cable clamp and the free arm are rotatably connected, and the rotation axis of the cable clamp relative to the free arm intersects with the axis of the rotation shaft.

[0014] Compared with the prior art, the swing rigid partition of the utility model has the following advantages:

[0015] 1. The cable clamp and the bow frame can rotate relative to each other, the bow frames can rotate relative to each other, and the bow frames can squeeze each other, so that the vibration synergy between two adjacent cables is destroyed, and the vibration of the cables becomes fragmented and small, avoiding the vibration of the cable net as a whole, thereby reducing the vibration of the cable net. When the cables begin to vibrate, the free arms of the bow frame deform, and the bow frame suppresses the vibration of the cables. As the vibration increases, the cable clamp and the bow frame rotate relative to each other, and the bow frames rotate relative to each other, so that the vibrations between adjacent cables are staggered and the resonance is destroyed. When the amplitude becomes larger and larger, the rebound member is compressed and restored, further destroying the resonance between adjacent cables, so that the overall amplitude of the cable net is not large and will not suffer structural damage.

[0016] 2. A joint bearing is arranged on the rotating shaft so that the bow frames can swing relative to each other, thereby further reducing vibration and suppressing shock.

[0017] 3. The rotating shaft adopts a separate left rotating shaft and a right rotating shaft, and uses a rebound part for soft connection, so that the swing between the bow-shaped frames has resilience, which further reduces vibration and suppresses shock.

[0018] 4. The end surfaces of the first ends of the outer sheath and the inner sheath are arc-shaped, so that the bow frame can swing better.

[0019] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of a swinging rigid spacer connecting two cables in Embodiment 1 of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of a top view structure;

[0023] Figure 3 This is a structural schematic diagram of a swinging rigid partition frame according to a first embodiment of the utility model;

[0024] Figure 4 yes Figure 3 A schematic diagram of a top view structure;

[0025] Figure 5 This is a schematic structural diagram of one of the bow-shaped frames in Embodiment 1 of the present utility model;

[0026] Figure 6 It is a structural schematic diagram of an extended implementation method of Example 1 of the utility model;

[0027] Figure 7 It is a structural schematic diagram of a cable clamp of an extended implementation mode of Example 1 of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the swing rigid partition frame of the second embodiment of the utility model;

[0029] Fig. 9 yes Figure 8 A schematic diagram of a local enlarged structure;

[0030] Fig.10 It is a partial structural schematic diagram of the swing rigid partition frame of the third embodiment of the utility model;

[0031] Fig.11 It is a partial structural schematic diagram of a swinging rigid partition frame according to a fourth embodiment of the utility model.

[0032] Among them, 100, cable clamp, 110, first half clamp, 120, second half clamp, 130, 130', half clamp ear plate, 140, 140', half clamp ear hole, 200, partition frame assembly, 210a, 210b, bow frame, 211a, 211b, free arm, 212a, 212b, rotation hole, 213a, 213b, locking rod, 214, free arm ear plate, 215, free arm ear hole, 216a, 216b, positioning sleeve, 220, groove, 300, rotation axis, 310, left rotation axis, 320, right rotation axis, 330, outer sheath, 331, the first A cover body, 332, a first connecting hole, 333, a first step, 334, an outer end surface of the first end of the outer sleeve, 340, an inner sleeve, 341, a second cover body, 342, a second connecting hole, 343, a second step, 344, an outer end surface of the first end of the inner sleeve, 345, a convex step, 350, a sleeve cover, 360a, 360b, a locking piece, 361a, 361b, a locking piece sleeve, 370a, 370b, a spherical bearing, 371a, 371b, a bearing sleeve, 400, a first rebound piece, 410a, 410b, a second rebound piece, 500, a cable. DETAILED DESCRIPTION

[0033] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figures 1 to 7 As shown, the swing rigid spacer of this embodiment includes: a cable clamp 100; a spacer assembly 200, the spacer assembly 200 includes a rotating shaft 300, locking members 360a, 360b, a joint bearing, a first resilient member 400, and two arch frames 210a, 210b. Taking the arch frame 210a as an example, the arch frame 210b has the same structure as the arch frame 210a. The arch frame 210a is provided with two free arms 211a, 211b connected at one end. The arch frame 210a is provided with a rotating hole 212a at the connection of the free arms 211a. The arch frame 210b is provided with two free arms 211a, 211b. 1b, the arch frame 210b is provided with a rotation hole 212b at the connection of the free arm 211b, the two arch frames 210a, 210b are arranged back to back with the free arms 211a, 211b facing outwards, the two ends of the rotating shaft 300 are respectively inserted into the rotation holes 212a, 212b of the two arch frames 210a, 210b, the rotating shaft 300 is rotatably matched with the rotating holes 212a, 212b, the two ends of the rotating shaft 300 are provided with locking members 360a, 360b, and a joint bearing 370a is provided between the locking member 360a and the arch frame 210a. In this embodiment, Figure 3Only one joint bearing 370a is shown in the figure, but it is not limited to this embodiment. Joint bearings can also be set between the locking member 360b and the bow frame 210b at the same time; wherein, the free ends of the free arms 211a and 211b are provided with a cable clamp 100. The two bow frames 210a and 210b can rotate relative to the rotating shaft 300, so that the two bow frames 210a and 210b can rotate with the rotating shaft 300 as the axis. A first resilient member 400 is set between the two bow frames 210a and 210b, so that the two bow frames 210a and 210b can move closer to or farther from each other. The apertures of the rotating holes 212a and 212b are slightly larger than the diameter of the rotating shaft 300. With the help of the joint bearing 370a, the bow frames 210a and 210b can swing to a certain extent relative to the axis of the rotating shaft 300. In this way, the spacer of this embodiment provides three-dimensional degrees of freedom for the cables, fragments the vibration of the cables, makes the vibrations of adjacent cables asynchronous, and suppresses the vibration of the cable network. In this embodiment, two free arms 211a, 211b are respectively provided on the arch frames 210a, 210b, but it is not limited to this embodiment, and more than three free arms may also be provided.

[0037] The arch frame 210a is provided with a groove 220, and the joint bearing 370a is embedded in the groove 220. The arch frame 210a can well follow the swing of the joint bearing 370a through the groove 220, so that the swing friction is borne by the joint bearing, thereby avoiding the wear of the arch frame 210a.

[0038] The first rebound member 400 includes a spring, specifically, a pressure spring, which is not limited to the present embodiment and may also be a disc spring or other elastic element. The spring sleeve is arranged outside the rotating shaft 300, and the edges of the rotating holes 212a and 212b are provided with positioning sleeves 216a and 216b. The two ends of the spring are respectively inserted into the positioning sleeves 216a and 216b on the two bow frames 210a and 210b. The positioning sleeves 216a and 216b constrain the spring, so that the spring always provides rebound force for the two bow frames 210a and 210b, suppresses the vibration and swing of the two bow frames 210a and 210b, and suppresses the vibration of the cable.

[0039] In this embodiment, a joint bearing 370a is provided between the locking member 360a and the bow frame 210a. However, the present invention is not limited to this embodiment, and a joint bearing may also be provided between the locking member 360b and the bow frame 210b.

[0040] The joint bearing 370a is sleeved on the rotating shaft 300. The joint bearing 370a allows the bow frame 210a to swing relative to the axis of the rotating shaft 300, providing an additional dimension of freedom for the vibration of the cable, further fragmenting the cable vibration and destroying the resonance of adjacent cables.

[0041] The cable clamp 100 and the free arms 211a, 211b are rotationally connected, and the rotation axis of the cable clamp 100 relative to the free arms 211a, 211b intersects with the axis of the rotation shaft 300. In this embodiment, the rotation directions of the two are substantially perpendicular. By arranging a plurality of different rotational free dimensions on the partition frame, the vibration directions between adjacent cables are staggered and mutually restrained so as to attenuate the vibration. Taking the free arm 211a as an example, the structure of the free arm 211b is the same as that of the free arm 211a. A free arm ear plate 214 is provided at the end of the free arm 211a, and a free arm ear hole 215 is provided on the free arm ear plate 214. The cable clamp 100 includes a first half clamp 110 and a second half clamp 120. The first half clamp 110 is provided with a half clamp ear plate 130, and a half clamp ear hole 140 is provided on the half clamp ear plate 130. The second half clamp 120 is mounted on the first half clamp 110 by bolts. In another embodiment, Figure 6 , 7 As shown, the second half clamp 120 is also provided with a half clamp ear plate 130', and the half clamp ear plate 130' is provided with a half clamp ear hole 140'. The second half clamp 120 is installed on another swinging rigid partition frame through the half clamp ear plate 130' and the half clamp ear hole 140', which can realize the connection between multiple cables.

[0042] In this embodiment, the first resilient member 400 is in a state of being compressed by the two arch frames 210a and 210b, and automatically rebounds to the initial position of the two arch frames 210a and 210b.

[0043] In this embodiment, the two free arms 211a on the bow frame 210a are bent toward each other to form a curved bow shape, and the two free arms 211b on the bow frame 210b are bent toward each other to form a curved bow shape. However, this embodiment is not limited thereto, and the following design may also be used. Figure 6 The U-shape shown may be a V-shape or other angular shape, but a bow shape may achieve a better shock absorbing effect.

[0044] The cable clamp 100 of the utility model and the bow frames 210a and 210b can rotate relative to each other, the bow frames 210a and 210b can rotate relative to each other, the bow frames 210a and 210b can be squeezed against each other, and the bow frames 210a and 210b can swing against each other, so that the vibration coordination between two adjacent cables 500 is destroyed, and the vibration of the cables 500 becomes fragmented and tiny, avoiding the overall vibration of the cables and the cable net, thereby reducing the vibration of the cable net. When the cable 500 begins to vibrate, deformation occurs between the free arms of the bow frames 210a and 210b, and the bow frames 210a and 210b suppress the vibration of the cable. As the vibration increases, relative rotation occurs between the cable clamp 100 and the bow frames 210a and 210b, and relative rotation occurs between the bow frames 210a and 210b, so that the vibrations between adjacent cables are staggered and the resonance is destroyed. When the amplitude becomes larger and larger, the first rebound element 400 is compressed and restored, further destroying the resonance between adjacent cables, so that the overall amplitude of the cable net is not large and will not suffer structural damage.

[0045] A locking rod is provided between the two free arms on a single arch frame, a locking rod 213a is provided between the two free arms 211a on the arch frame 210a, and a locking rod 213b is provided between the two free arms 211b on the arch frame 210b. The free arm length that matches the distance between the cables 100 in different structures is not necessarily the free arm length with the best shock absorption effect. In this embodiment, a locking rod is provided between the two free arms, and the length of the free end of the free arm is controlled by setting the length of the locking rod, thereby obtaining a better shock absorption effect. Figure 5 As shown, D is the length of the free end of the free arm.

[0046] Embodiment 2

[0047] The difference between the second embodiment and the first embodiment is that:

[0048] like Figure 8 , 9As shown, the rotating shaft 300 includes a left rotating shaft 310 and a right rotating shaft 320 which are arranged at intervals. The rotating shaft 300 also includes an outer sheath 330, an inner sheath 340, and a sheath cover 350. The first end of the left rotating shaft 310 is inserted into the rotating hole 212a of one arch frame 210a, and the first end of the right rotating shaft 320 is inserted into the rotating hole 212b of another arch frame 210b. The second end of the left rotating shaft 310 is connected to the first end of the outer sheath 330, and the second end of the right rotating shaft 320 is connected to the inner sheath 340. The first end of the sheath 340 is connected, the second end of the inner sheath 340 is inserted into the outer sheath 330 from the second end of the outer sheath 330, the outer wall of the second end of the inner sheath 340 is provided with a convex step 345, the second end of the outer sheath 330 is installed with a sheath cover 350, the sheath cover 350 restricts the convex step 345 from sliding out of the outer sheath 330, thereby restricting the outer sheath 330 and the inner sheath 340 from separating from each other, and the first resilient member 400 is disposed in the outer sheath 330 and the inner sheath 340. The left rotating shaft 310 and the right rotating shaft 320 are softly connected through the first resilient member 400, and the first resilient member 400 includes a spring, and the two ends of the spring are respectively connected to the left rotating shaft 310 and the right rotating shaft 320.

[0049] The end surface of the first end of the outer sleeve 330 is provided with a concave first cover body 331, the first cover body 331 forms a first connecting hole 332 on a side facing the left rotating shaft 310, and the first cover body 331 forms a first step 333 on a side facing away from the left rotating shaft 310, the left rotating shaft 310 is inserted into the first connecting hole 332 and is threadedly connected, and the first rebound member 400 in this embodiment includes a spring, one end of the spring is sleeved outside the first step 333; the end surface of the first end of the inner sleeve 340 is provided with a concave second cover body 341, the second cover body 341 forms a second connecting hole 342 on a side facing the right rotating shaft 320, and the second cover body 341 forms a second step 343 on a side facing away from the right rotating shaft 320, the right rotating shaft 320 is installed in the second connecting hole 342 and is threadedly connected, and the other end of the spring of the first rebound member 400 is sleeved outside the second step 343.

[0050] One of the bow frames 210a can rotate relative to the axis of the left shaft 310, and the other bow frame 210b can rotate relative to the axis of the right shaft 320. The left shaft 310 and the right shaft 320 can move closer to or farther away from each other by means of the stretching and compression of the first rebound member 400. The left shaft 310 and the right shaft 320 can also swing relative to each other by means of the bending of the first rebound member 400 itself, thereby providing more degrees of freedom for the vibration of the cable, making the swing of the cable more fragmented, and further achieving shock absorption and vibration suppression.

[0051] The outer end surface 334 of the first end of the outer sheath 330 is in an arc shape, and the outer end surface 344 of the first end of the inner sheath 340 is in an arc shape. The outer end surface 334 of the first end of the outer sheath 330 abuts against the arch frame 210a, and the outer end surface 344 of the first end of the inner sheath 340 abuts against another arch frame 210b. The outer end surfaces 334 and 344 of the first ends of the outer sheath 330 and the inner sheath 340 are set to be basically arc-shaped, so that the outer sheath 330 and the inner sheath 340 can swing relative to the arch frames 210a and 210b by means of the joint bearing 370a. More degrees of freedom are provided for the vibration of the cable 500, so that the swing of the cable 500 is further fragmented, and shock absorption and vibration suppression are further achieved.

[0052] Embodiment 3

[0053] The difference between the third embodiment and the second embodiment is that:

[0054] In addition to the joint bearing 370a provided between the locking member 360a and the arch frame 210a, a joint bearing 370b is provided between the locking member 360b and the arch frame 210b, which is more conducive to the independent swing of the two arch frames 210a and 210b. The rotating shaft 300 passes through the joint bearings 370a and 370b.

[0055] A second resilient member 410a is provided between the joint bearing 370a and the locking member 360a, a second resilient member 410b is provided between the joint bearing 370b and the locking member 360b, the second resilient members 410a and 410b are sleeved outside the rotating shaft 300, a bearing sleeve 371a is provided on the joint bearing 370a, a bearing sleeve 371b is provided on the joint bearing 370b, and a locking member sleeve 360a is provided on the locking member 360a. 1a, a locking member sleeve 361b is provided on the locking member 360b, the second resilient members 410a and 410b are springs or disc springs, the second resilient members 410a and 410b are sleeved on the rotating shaft 300, the two ends of the second resilient member 410a are respectively inserted into the bearing sleeve 371a and the locking member sleeve 361a, and the two ends of the second resilient member 410b are respectively inserted into the bearing sleeve 371b and the locking member sleeve 361b, as shown in FIG. Fig.10 As shown, the second resilient member 410b is a spring.

[0056] Embodiment 4

[0057] The difference between the fourth embodiment and the third embodiment is that:

[0058] like Fig.11 As shown, the first resilient member 400 is a disc spring, and both ends of the disc spring abut against two bow frames respectively.

[0059] The second resilient member 410a is a disc spring, one end of which abuts against the locking member 360a and the other end of which abuts against the joint bearing 370a. The second resilient member 410b is a disc spring, one end of which abuts against the locking member 360b and the other end of which abuts against the joint bearing 370b.

[0060] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A swinging rigid partition frame, characterized in that: include: Cable clamp; A spacer assembly, the spacer assembly comprises a rotating shaft, a locking piece, a joint bearing, and two arch frames, the arch frame is provided with at least two free arms connected at one end, the arch frame is provided with a rotating hole at the connection of the free arms, the two arch frames are arranged back to back with the free arms facing outward, the two ends of the rotating shaft are respectively inserted into the rotating holes of the two arch frames, the rotating shaft is rotatably matched with the rotating holes, the locking pieces are provided at both ends of the rotating shaft, and the joint bearing is provided between the locking piece and the arch frame; Wherein, the free end of the free arm is provided with the cable clamp.

2. A swing rigid spacer according to claim 1, characterized in that: It also includes a first rebound member, and the rotating shaft includes a left rotating shaft and a right rotating shaft arranged at intervals, the first end of the left rotating shaft is inserted into the rotating hole of one of the bow-shaped frames, and the first end of the right rotating shaft is inserted into the rotating hole of another of the bow-shaped frames, and the left rotating shaft and the right rotating shaft are connected by the first rebound member.

3. A swing rigid spacer according to claim 2, characterized in that: The rotating shaft also includes an outer sleeve, an inner sleeve, and a sleeve cover. The second end of the left rotating shaft is connected to the first end of the outer sleeve, the second end of the right rotating shaft is connected to the first end of the inner sleeve, the second end of the inner sleeve is inserted into the outer sleeve from the second end of the outer sleeve, the outer wall of the second end of the inner sleeve is provided with a convex step, the second end of the outer sleeve is installed with the sleeve cover, the sleeve cover limits the convex step, and the first rebound member is arranged in the outer sleeve and the inner sleeve.

4. A swing rigid spacer according to claim 3, characterized in that: The end surface of the first end of the outer sheath is provided with a concave first cover body, the first cover body forms a first connecting hole on a side facing the left rotating shaft, the first cover body forms a first step on a side facing away from the left rotating shaft, the left rotating shaft is inserted into the first connecting hole, and the first resilient member is sleeved outside the first step; Or\and, the end face of the first end of the inner sleeve is provided with a concave second cover body, the second cover body forms a second connecting hole on the side facing the right rotating shaft, the second cover body forms a second step on the side facing away from the right rotating shaft, the right rotating shaft is installed in the second connecting hole, and the rebound piece is arranged outside the second step.

5. A swing rigid spacer according to claim 4, characterized in that: The outer end surface of the first end of the outer sheath is arc-shaped; or, the outer end surface of the first end of the inner sheath is arc-shaped.

6. A swing rigid spacer according to claim 2, characterized in that: The first resilient member is in a compressed state.

7. A swing rigid spacer according to claim 1, characterized in that: A locking rod is arranged between the two free arms of the bow-shaped frame.

8. A swing rigid spacer according to claim 1, characterized in that: The bow-shaped frame is provided with a groove, and the joint bearing is embedded in the groove.

9. A swing rigid spacer according to any one of claims 1 to 8, characterized in that: A second resilient member is provided between the spherical bearing and the locking member.

10. A swing rigid spacer according to any one of claims 1 to 8, characterized in that: The cable clamp is rotatably connected to the free arm, and a rotation axis of the cable clamp relative to the free arm intersects with an axis of the rotation shaft.

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