CN111244858A

CN111244858A - Cable antidetonation support

Info

Publication number: CN111244858A
Application number: CN202010069157.5A
Authority: CN
Inventors: 郭智昊
Original assignee: Fujian Chengtian Technology Co ltd
Current assignee: Fujian Chengtian Technology Co ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-06-05
Anticipated expiration: 2040-01-21
Also published as: CN111244858B

Abstract

The invention discloses a cable anti-seismic support, which comprises a ceiling and a cable, wherein a connecting piece is fixed on the lower surface of the ceiling through screws, a reinforcing frame is fixed at the bottom end of the connecting piece through bolts, a fixing pile is welded at the bottom end of the reinforcing frame, connecting piles are arranged on two sides of the bottom end of the fixing pile, the connecting pile is hinged with the fixing pile, the other end of the connecting pile is welded with a connecting frame, the upper surface of the connecting frame is provided with a wiring box, the upper surface of the wiring box is provided with a protective cover plate, the inner side of the wiring box is provided with an anti-seismic frame, both sides of the anti-seismic frame are provided with connecting mechanisms, a through groove is penetratingly arranged on the inner wall of the anti-seismic frame, an anti-seismic mechanism is arranged on the inner side of the through groove, the surface of antidetonation mechanism is equipped with the cable, the both sides of antidetonation mechanism all are equipped with the spring, the surface cover of spring is equipped with the sleeve. The invention has cable vibration retraction space, increases the tensile strength of the bracket and improves the anti-seismic performance.

Description

Cable antidetonation support

Technical Field

The invention relates to the technical field of cable supports, in particular to a cable anti-seismic support.

Background

The cable is generally a rope-like cable formed by twisting several or several groups of wires, each group of wires is insulated from each other and usually twisted around a center, and the whole is covered with a highly insulating covering layer, and the cable includes a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like, which are composed of single-strand or multi-strand wires and an insulating layer and are used for transmitting electricity and information.

In modern buildings, matched facilities such as a water suction pump, an elevator and fire alarm equipment are provided, the cables are required to transmit electricity or transmit information, when the cables are laid, a cable support is required to be used, the existing cables are mostly made of light steel materials, and the existing cable support needs to have certain shock resistance to ensure that the cable support cannot collapse under severe conditions to keep the normal work of the cables.

To this end, chinese patent application No.: 201710463757.8 discloses a cable anti-seismic support, which comprises a support base plate, a support frame, an anti-seismic frame, a ventilation plate and a wind shield, wherein the support frame is fixed on the support base plate, the anti-seismic frame is arranged in the inner cavity of the support frame, a turntable is arranged in a rotation groove and is rotationally connected with the rotation groove, and one end of the turntable, which is far away from a connecting column, is fixed on the support base plate through a supporting column; the inner side wall of the shockproof frame is correspondingly connected with a left tensioning rope and a right tensioning rope respectively, the top wall and the bottom wall of the shockproof frame are connected with reset springs respectively, the ventilating plate and the wind shield are fixed on two sides of the support frame respectively, and a ventilating hole is formed in the ventilating plate. Can make the cable receive wind-force through the setting up of ventilating board and deep bead, form a pressure differential at the both ends of cable to fine drive shockproof frame realizes the ascending rotation of horizontal direction, and then realizes buffering absorbing effect to the cable.

However, when the cable is installed indoors, the cable has no retraction space when being subjected to a transverse vibration pulling force, and the two ends or the surface of the cable are torn by vibration, so that the anti-seismic effect is affected.

Disclosure of Invention

The invention aims to provide an anti-seismic cable support, which aims to solve the problem that when a cable provided in the background art is subjected to transverse vibration pulling force, the cable has no folding and unfolding space, so that two ends or surfaces of the cable are torn by vibration, and the anti-seismic effect is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: an anti-seismic cable bracket comprises a ceiling and a cable, wherein a connecting piece is fixed on the lower surface of the ceiling through screws, a reinforcing frame is fixed at the bottom end of the connecting piece through bolts, a fixing pile is welded at the bottom end of the reinforcing frame, connecting piles are arranged on two sides of the bottom end of the fixing pile, the connecting pile is hinged with the fixing pile, the other end of the connecting pile is welded with a connecting frame, the upper surface of the connecting frame is provided with a wiring box, the upper surface of the wiring box is provided with a protective cover plate, the inner side of the wiring box is provided with an anti-seismic frame, both sides of the anti-seismic frame are provided with connecting mechanisms, a through groove is penetratingly arranged on the inner wall of the anti-seismic frame, an anti-seismic mechanism is arranged on the inner side of the through groove, the surface of antidetonation mechanism is equipped with the cable, the both sides of antidetonation mechanism all are equipped with the spring, the surface cover of spring is equipped with the sleeve, and the sleeve passes through the screw to be connected fixedly with the inner wall of antidetonation frame.

Preferably, the link is "U" shape structure, the link passes through the bolt and is fixed with the surface connection of wiring case, the both sides surface of link has all evenly penetrated and has seted up the through-hole.

Preferably, the even welding of surface of wiring case has the card stake, set up flutedly on the inner wall of protection apron, the buckle structure is constituteed with the card stake to the recess, the embedded sealed pad that has in protection apron's inner wall bottom, sealed pad is contradicted with the top of wiring case.

Preferably, the reinforcing frame and the connecting frame form a triangular structure, and the reinforcing frame and the connecting pile form a rotating structure through fixing piles.

Preferably, coupling mechanism includes adapter sleeve, mounting groove, connecting axle, torsional spring and fixed hook, the mounting groove has been seted up to the upper surface of adapter sleeve, the inboard of mounting groove is equipped with the fixed hook, the fixed hook is "L" shape structure, the bottom of fixed hook is run through and is provided with the connecting axle, the both ends of connecting axle all with the inner wall welded fastening of mounting groove, the surface cover of connecting axle is equipped with the torsional spring, and the one end of torsional spring is connected fixedly with the connecting axle, the other end and the fixed hook of torsional spring are connected fixedly, the elastic construction is constituteed with the torsional spring to the fixed hook.

Preferably, the outer surfaces of the two sides of the anti-seismic frame are provided with clamping grooves, the fixing hooks are clamped with the clamping grooves, the inner cavities of the clamping grooves are trapezoidal, and the connecting positions of the fixing hooks and the clamping grooves are matched.

Preferably, the anti-seismic mechanism comprises a fixing frame, a limiting rod, a rubber rod and a sliding groove, the sliding groove is formed in each of two sides of the fixing frame, the anti-seismic frame is connected with the sliding groove in an inserting mode, the inner wall of the sliding groove is smooth, the anti-seismic frame and the sliding groove form a sliding structure, and the fixing frame and the anti-seismic frame form the sliding structure through the sliding groove.

Preferably, the fixing frame is evenly provided with the gag lever post on the surface, the gag lever post is two liang of equidistance straight line distributions, the rubber pole is crisscross the arrangement with the gag lever post, the bottom of gag lever post and rubber pole all is fixed with the upper surface bonding of fixing frame.

Preferably, the cable is inserted into the limiting rod, one end of the spring is inserted into the inner side of the sleeve, the other end of the spring is abutted against the outer surface of the fixing frame, and the fixing frame and the spring form an elastic structure.

Compared with the prior art, the invention has the beneficial effects that: the cable anti-seismic support has a cable vibration retracting space, the tensile strength of the support is improved, and the anti-seismic performance is improved.

The cable fixing frame is provided with an anti-seismic frame, a sleeve, a spring, an anti-seismic mechanism and a through groove, the anti-seismic frame is arranged on the inner side of the wiring box, the connecting mechanisms are assembled on two sides of the anti-seismic frame, the anti-seismic frame is conveniently connected and fixed with the wiring box through the connecting mechanisms, the cable is conveniently laid, the through groove is formed in the anti-seismic frame, the fixing frame is connected with the through groove in a sliding manner, the spring is connected and fixed with the anti-seismic frame through the sleeve, the spring can be impacted when the fixing frame swings left and right in the anti-seismic frame, the impact force generated by the impact of the fixing frame is reduced due to the deformation of the spring, the cable can be inserted between the limiting rod and the rubber rod by uniformly arranging the limiting rod and the fixing frame on the surface of the fixing frame, a bent section is formed after the cable is assembled, when the wiring box is influenced, the cable-pulling-resistant support can increase the cable-pulling-resistant space, increase the tensile strength of the support and improve the anti-seismic performance.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

FIG. 3 is a schematic top view of the fixing frame of FIG. 2 according to the present invention;

FIG. 4 is a side view of the fixing frame of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 6 is a front sectional view of the connecting mechanism of fig. 2 according to the present invention.

In the figure: 1. a ceiling; 2. a connecting frame; 3. a wiring box; 4. a protective cover plate; 5. connecting piles; 6. fixing the pile; 7. a reinforcing frame; 8. a connecting member; 9. a connecting mechanism; 91. connecting sleeves; 92. mounting grooves; 93. a connecting shaft; 94. a torsion spring; 95. a fixed hook; 10. an anti-seismic frame; 11. a sleeve; 12. a spring; 13. an anti-seismic mechanism; 131. a fixed mount; 132. a limiting rod; 133. a rubber rod; 134. a chute; 14. a through groove; 15. a groove; 16. pile clamping; 17. a gasket; 18. a card slot; 19. an electrical cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown:

a cable anti-seismic support comprises a ceiling 1 and a cable 19, wherein a connecting piece 8 is fixed on the lower surface of the ceiling 1 through screws, a reinforcing frame 7 is fixed at the bottom end of the connecting piece 8 through bolts, a fixing pile 6 is welded at the bottom end of the reinforcing frame 7, connecting piles 5 are arranged on two sides of the bottom end of the fixing pile 6 and hinged with the fixing pile 6, a connecting frame 2 is welded at the other end of the connecting pile 5, the reinforcing frame 7 and the connecting frame 2 form a triangular structure, the reinforcing frame 7 and the connecting pile 5 form a rotating structure through the fixing pile 6, the reinforcing frame 7 and the fixing pile 6 are rotatably connected through the connecting pile 5, the reinforcing frame 7 can rotate on the connecting pile 5 through the fixing pile 6, the reinforcing frame 7 can rotate to adjust the position, when the surface of a ceiling 1 is uneven, the reinforcing frame 7 can also pass through rotation adjustment, so that the top end of the reinforcing frame 7 can drive the connecting piece 8 to be always attached to the surface, after the connecting frame 2 and the reinforcing frame 7 are installed on the ceiling 1, the stability is improved.

The upper surface of the connecting frame 2 is provided with a wiring box 3, the connecting frame 2 is in a U-shaped structure, the connecting frame 2 is fixedly connected with the outer surface of the wiring box 3 through bolts, the outer surfaces of the two sides of the connecting frame 2 are uniformly penetrated and provided with through holes, as shown in fig. 2, the wiring box 3 can be laid on the connection frame 2, and during actual construction, the combination frames of the connection frame 2 and the reinforcement frame 7 can be assembled into one group every three meters, the wiring box 3 can also be in a split design, through the flange structure concatenation, can reduce the construction degree of difficulty like this, also convenient transportation, convenient recycle also can make multistage wiring case 3 splice together through the welded mode, and wiring case 3 adopts stainless steel to make, can prevent the steam corrosion wiring case 3 in the air, and link 2 all makes by light steel material with enhancement frame 7, adopts the cavity design, and it is lighter weight, practices thrift the cost.

The upper surface of the wiring box 3 is provided with a protective cover plate 4, the outer surface of the wiring box 3 is evenly welded with clamping piles 16, the inner wall of the protective cover plate 4 is provided with a groove 15, the groove 15 and the clamping piles 16 form a buckle structure, the bottom end of the inner wall of the protective cover plate 4 is embedded with a sealing gasket 17, the sealing gasket 17 is abutted against the top end of the wiring box 3, as shown in fig. 5, the surface of the wiring box 3 is welded with the locking piles 16 at intervals, so that the locking piles 16 and the grooves 15 can be matched to fix the protective cover plate 4 and the wiring box 3, and the protective cover plate 4 can be conveniently detached, and the protective cover plate 4 is slightly deformed only by pulling outwards, so that the grooves 15 are far away from the locking piles 16, can open protective cover plate 4 from wiring case 3, protective cover plate 4 is stainless steel material, has better elasticity, makes protective cover plate 4 can resume the former state after slight deformation, and sealed pad 17 is the rubber material, and sealed pad 17 plays the effect that increases the leakproofness between protective cover plate 4 and the wiring case 3.

The wiring box 3 is provided with an anti-vibration frame 10 on the inner side, both sides of the anti-vibration frame 10 are provided with connecting mechanisms 9, each connecting mechanism 9 comprises a connecting sleeve 91, a mounting groove 92, a connecting shaft 93, a torsion spring 94 and a fixing hook 95, the upper surface of the connecting sleeve 91 is provided with the mounting groove 92, the inner side of the mounting groove 92 is provided with the fixing hook 95, the fixing hook 95 is of an L-shaped structure, the bottom end of the fixing hook 95 is provided with the connecting shaft 93 in a penetrating manner, both ends of the connecting shaft 93 are welded and fixed with the inner wall of the mounting groove 92, the outer surface of the connecting shaft 93 is sleeved with the torsion spring 94, one end of the torsion spring 94 is fixedly connected with the connecting shaft 93, the other end of the torsion spring 94 is fixedly connected with the fixing hook 95, the fixing hook 95 and the torsion spring 94 form an elastic structure, both outer surfaces of both sides of the anti, as shown in fig. 2 and 6, the fixing hook 95 is mounted on the connecting shaft 93, so that the fixing hook 95 can rotate in the mounting groove 92 through the connecting shaft 93, the torsion spring 94 is sleeved on the connecting shaft 93, one end of the torsion spring 94 is fixedly connected with the connecting shaft 93, the other end of the torsion spring 94 is fixedly connected with the fixing hook 95, so that the torsion spring 94 can provide elasticity for the fixing hook 95, the torsion spring 94 is in a contraction state in fig. 6, after the anti-seismic frame 10 is taken down from the connecting sleeve 91, the torsion spring 94 can deform to generate elasticity to be applied to the fixing hook 95, so that the top end of the fixing hook 95 is received in the mounting groove 92, and the anti-seismic frame 10 can be fixedly connected with the connecting mechanism 9 by engaging the top end of the fixing hook.

The inner wall of the anti-seismic frame 10 is penetrated with a through groove 14, the inner side of the through groove 14 is provided with an anti-seismic mechanism 13, the surface of the anti-seismic mechanism 13 is provided with a cable 19, both sides of the anti-seismic mechanism 13 are provided with springs 12, the outer surface of the spring 12 is sleeved with a sleeve 11, the sleeve 11 is connected and fixed with the inner wall of the anti-seismic frame 10 through screws, the anti-seismic mechanism 13 comprises a fixed frame 131, a limiting rod 132, a rubber rod 133 and a sliding groove 134, both sides of the fixed frame 131 are provided with the sliding groove 134, the anti-seismic frame 10 is connected with the sliding groove 134 in an inserting manner, the inner wall of the sliding groove 134 is smooth, the anti-seismic frame 10 and the sliding groove 134 form a sliding structure, the fixed frame 131 and the anti-seismic frame 10 form a sliding structure through the sliding groove 134, the surface of the fixed frame 131 is uniformly provided with the limiting rods 132, the limiting rods 132, the cable 19 is inserted into the limiting rod 132, one end of the spring 12 is inserted into the inner side of the sleeve 11, the other end of the spring 12 abuts against the outer surface of the fixing frame 131, the fixing frame 131 and the spring 12 form an elastic structure, as shown in fig. 2-4, the limiting rod 132 and the rubber rod 133 are uniformly arranged on the upper surface of the fixing frame 131, as shown in the drawing wire box 3, the cable 19 can be inserted into the limiting rod 132, one end of the cable 19 is bent, the cable 19 can be unfolded when the cable 19 is pulled, the cable 19 is prevented from being torn, the rubber rod 133 is made of rubber, the rubber rod 133 can be deformed when the cable 19 is unfolded, the cable 19 cannot be blocked, the fixing frame 131 is slidably connected with the anti-seismic frame 10 through the chute 134, the fixing frame 131 can slide left and right on the anti-seismic frame 10, when the fixing frame 131 swings left and right to impact the spring 12, the impact force of the fixing frame 131 can be buffered through, during actual installation, the anti-seismic mechanisms 13 are assembled one by one every three meters without being continuously tiled.

The working principle is as follows: when the ceiling fixing device is used, holes are drilled in the ceiling 1, expansion screws are installed, then the expansion screws are fastened, the expansion screws are connected and fixed with the ceiling 1, the top end of the connecting frame 2 is connected and fixed with the expansion screws, the angle between the reinforcing frame 7 and the connecting frame 2 is adjusted, holes are drilled in the ceiling 1 corresponding to the positions of the fixing holes in the connecting piece 8, the expansion screws are installed, then the expansion screws are fastened, the connecting piece 8 is installed on the expansion screws, nuts are sleeved on the expansion screws, and then the nuts are fastened, so that the reinforcing frame 7 is connected and fixed with the ceiling 1 through the connecting piece 8, and the installation of the connecting frame 2 and the reinforcing frame 7 can be completed;

then, the wiring box 3 is installed on the connecting frame 2 through bolts, as shown in fig. 1, the protective cover plate 4 is opened, the anti-seismic frame 10 is taken down from the connecting mechanism 9, the anti-seismic frame 10 is lifted up forcibly, the fixing hook 95 is far away from the clamping groove 18, the anti-seismic frame 10 can be taken down from the connecting sleeve 91, a row of cables 19 can be installed firstly by taking out one group of anti-seismic frames 10, after the anti-seismic frame 10 at the bottom of the wiring box 3 is filled with the cables 19, the other group of anti-seismic frame 10 is placed into the wiring box 3, two sides of the anti-seismic frame 10 are lapped on the connecting sleeve 91, the fixing hook 95 is pressed down by the anti-seismic frame 10, the fixing hook 95 is rotatably inserted into the clamping groove 18, and the anti-seismic frame 10 and the connecting mechanism 9 can be;

then, the cable 19 is arranged on the fixed frame 131 as shown in fig. 3, so that a part of the cable 19 inserted into the limiting rod 132 and the rubber rod 133 is bent, and a section of accommodating space is reserved when the cable 19 is transversely pulled;

through having logical groove 14 in antidetonation frame 10, and with mount 131 and logical groove 14 sliding connection, through all being connected with spring 12 in the both sides of mount 131, and be connected spring 12 and antidetonation frame 10 fixedly through sleeve 11, make mount 131 can strike spring 12 when horizontal hunting in antidetonation frame 10, make spring 12 deformation subdue the impact force that mount 131 striking produced, through evenly being provided with gag lever post 132 and mount 131 on the mount 131 surface, make cable 19 can insert and establish between gag lever post 132 and rubber pole 133, make cable 19 have crooked one section after the assembly, when wiring box 3 receives the vibrations influence, when transversely dragging, expand through the bending part of cable 19, can increase the receipts and releases space of cable 19 vibrations, tear cable 19 during the avoidance of vibrations.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A cable antidetonation support, includes ceiling (1) and cable (19), its characterized in that: the lower surface of the ceiling (1) is fixed with a connecting piece (8) through screws, the bottom of the connecting piece (8) is fixed with a reinforcing frame (7) through bolts, the bottom of the reinforcing frame (7) is welded with a fixing pile (6), both sides of the bottom of the fixing pile (6) are provided with connecting piles (5), the connecting piles (5) are hinged with the fixing pile (6), the other end of the connecting pile (5) is welded with a connecting frame (2), the upper surface of the connecting frame (2) is provided with a wiring box (3), the upper surface of the wiring box (3) is provided with a protective cover plate (4), the inner side of the wiring box (3) is provided with an anti-seismic frame (10), both sides of the anti-seismic frame (10) are provided with connecting mechanisms (9), the inner wall of the anti-seismic frame (10) is penetrated and provided with a through groove (14), the inner side of the through groove (14) is provided with an, the surface of antidetonation mechanism (13) is equipped with cable (19), the both sides of antidetonation mechanism (13) all are equipped with spring (12), the surface cover of spring (12) is equipped with sleeve (11), and sleeve (11) are fixed through the inner wall connection of screw with antidetonation frame (10).

2. An anti-seismic cable support according to claim 1, wherein: the connecting frame (2) is of a U-shaped structure, the connecting frame (2) is fixedly connected with the outer surface of the wiring box (3) through bolts, and the outer surfaces of the two sides of the connecting frame (2) are uniformly penetrated and provided with through holes.

3. An anti-seismic cable support according to claim 1, wherein: the utility model discloses a wiring case, including wiring case (3), protection apron (4), recess (15) are seted up to the even welding of surface of wiring case (3) card stake (16), set up on the inner wall of protection apron (4) fluted (15), the buckle structure is constituteed with card stake (16) in recess (15), the inner wall bottom of protection apron (4) is embedded to have sealed the pad (17), sealed pad (17) are contradicted with the top of wiring case (3).

4. An anti-seismic cable support according to claim 1, wherein: the triangular structure is formed by the reinforcing frame (7) and the connecting frame (2), and the rotating structure is formed by the reinforcing frame (7) and the connecting pile (5) through the fixing pile (6).

5. An anti-seismic cable support according to claim 1, wherein: coupling mechanism (9) are including adapter sleeve (91), mounting groove (92), connecting axle (93), torsional spring (94) and fixed hook (95), mounting groove (92) have been seted up to the upper surface of adapter sleeve (91), the inboard of mounting groove (92) is equipped with fixed hook (95), fixed hook (95) are "L" shape structure, the bottom of fixed hook (95) is run through and is provided with connecting axle (93), the both ends of connecting axle (93) all with the inner wall welded fastening of mounting groove (92), the surface cover of connecting axle (93) is equipped with torsional spring (94), and the one end of torsional spring (94) is connected fixedly with connecting axle (93), the other end and the fixed hook (95) of torsional spring (94) are connected fixedly, the elastic construction is constituteed with torsional spring (94) to fixed hook (95).

6. An anti-seismic cable support according to claim 5, wherein: clamping grooves (18) are formed in the outer surfaces of the two sides of the anti-seismic frame (10), the fixing hooks (95) are clamped with the clamping grooves (18), the inner cavities of the clamping grooves (18) are trapezoidal, and the connecting positions of the fixing hooks (95) and the clamping grooves (18) are matched.

7. An anti-seismic cable support according to claim 1, wherein: antidetonation mechanism (13) are including mount (131), gag lever post (132), rubber pole (133) and spout (134), spout (134) have all been seted up to the both sides of mount (131), antidetonation frame (10) and spout (134) are inserted and are closed and be connected, the inner wall of spout (134) is smooth, sliding structure is constituteed with spout (134) in antidetonation frame (10), sliding structure is constituteed with antidetonation frame (10) through spout (134) in mount (131).

8. An anti-seismic cable support according to claim 7, wherein: the utility model discloses a rubber pole, including mount (131), gag lever post (132), rubber pole (133), gag lever post (132) are two liang of equidistance straight line distributions, rubber pole (133) are crisscross the arranging with gag lever post (132), the bottom of gag lever post (132) and rubber pole (133) all is fixed with the upper surface bonding of mount (131).

9. An anti-seismic cable support according to claim 8, wherein: the cable (19) is inserted into the limiting rod (132), one end of the spring (12) is inserted into the inner side of the sleeve (11), the other end of the spring (12) is abutted against the outer surface of the fixing frame (131), and the fixing frame (131) and the spring (12) form an elastic structure.