Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the clamping fixture capable of adjusting the diameter of the cable, and solves the problem that the clamping fixture in the prior art cannot be adjusted to be suitable for clamping cables with different cable diameters.
In order to achieve the purpose, the invention adopts the following technical scheme:
a clamping fixture capable of adjusting diameter of a cable comprises a fixture base and a fixture cover plate; the fixture base comprises a base body, wherein one end of the base body is provided with a fastening end which can be adjusted in at least two stages, and the other end of the base body is provided with a rotating end which can be adjusted in at least two stages; the base body is also provided with two elastic air bags which extend upwards and are symmetrical relative to the longitudinal section, and the opposite side surfaces of the two elastic air bags are of cambered surface structures; one end of the fixture cover plate is in running fit with the rotating end, and the other end of the fixture cover plate is in buckling connection with the buckling end; the clamp cover plate, the clamp base and the two elastic air bags are enclosed to form a clamping cavity for clamping the cable; and adjusting the rotation matching position of the fixture cover plate and the rotation end and the buckling matching position of the fixture cover plate and the buckling end, and extruding the two elastic air bags to deform so as to adjust the adaptive cable diameter of the clamping cavity.
Preferably, the fastening end comprises a first supporting part fixedly connected to the base body and extending outwards and a hook part vertically fixedly connected to the first supporting part; and at least two stages of hook structures which are longitudinally arranged are arranged on the side surface of the hook part close to the elastic air bag.
Preferably, a positioning plate for positioning the fixture cover plate is further fixedly connected between the first supporting portion and the hooking portion.
Preferably, the rotating end comprises a second supporting part fixedly connected to the base body and extending outwards and a limiting part vertically fixedly connected to the second supporting part; a rotating seat is fixed between the second supporting part and the limiting part, and at least two rotating holes which are longitudinally arranged are formed in the rotating seat; the rotating bolt is detachably mounted in the rotating hole.
Preferably, the fixture cover plate comprises a cover plate body with an arc-shaped structure and a spring plate structure fixed at the arc-shaped top of the cover plate body; a rotating shaft sleeve coaxially matched with the rotating hole is fixedly connected to the part, close to the rotating end, of the cover plate body, and an avoiding groove matched with the rotating seat is further formed in the part, close to the rotating end, of the cover plate body; the cover plate body is fixedly connected with a reverse buckling structure in buckling fit with the hooking structure at a position close to the buckling end, and the cover plate body is further provided with a guide groove in fit with the positioning plate at a position close to the buckling end.
Preferably, the rotating end is further provided with a limiting assembly for preventing tripping, and the limiting assembly comprises at least two limiting holes which are arranged on the positioning plate and are longitudinally arranged, and a limiting shaft sleeve which is fixedly connected to the part, close to the buckling end, of the cover plate body and is coaxial with the limiting holes; the limiting shaft sleeve and the limiting hole are internally and detachably provided with an anti-falling bolt.
Preferably, the spring plate structure comprises two spring pressing pieces which are fixedly connected to the cover plate body and are symmetrical relative to the longitudinal section; the elastic pressing piece comprises a connecting piece fixedly connected on the cover plate body and an elastic pressing piece fixedly connected at the tail end of the connecting piece; the connecting piece obliquely extends along one side far away from the longitudinal section, and the elastic pressing piece extends along one side close to the longitudinal section; and the connecting piece is also fixedly connected with a limiting piece extending towards the elastic pressing piece.
Preferably, the bottom surface of the elastic pressing sheet facing the clamping cavity is of an arc surface structure.
Preferably, the included angle between the connecting piece and the elastic pressing piece is an acute angle.
Preferably, the cover plate body is provided with reinforcing ribs which are positioned on two sides of the avoiding groove and are convex.
Compared with the prior art, the invention has the following beneficial effects:
1. one end of the clamp cover plate is in adjustable buckling fit with the buckling end, and the other end of the clamp cover plate is in adjustable rotating fit with the rotating end; when different rotating positions and different buckling positions are selected and correspondingly matched to form a clamp cover plate, different extrusion forces are exerted on the two elastic air bags, so that a clamping cavity formed by enclosing can be matched with cables with different cable diameters for clamping;
2. the buckling end can adjust the buckling position in at least two stages, the rotating end correspondingly has the rotating position which can be adjusted in at least two stages, and the size of the clamping cavity adaptive to the cable diameter is adjusted by quickly adjusting the matching position of the clamping fixture cover plate at the buckling end and the rotating end, so that the clamping cavity is adaptive to clamping cables with different cable diameters.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic front view of the fixture base;
FIG. 3 is a schematic top view of the fixture base;
FIG. 4 is a schematic bottom view of the fixture base;
FIG. 5 is a schematic front view of the cover plate of the fixture;
FIG. 6 is a schematic bottom view of the cover plate;
FIG. 7 is a top view of the clamp cover plate illustrating the axial configuration;
FIG. 8 is a schematic view of an application installation configuration of the present invention;
in the figure, the fixture base 1, the base body 11, the fastening end 12, the first supporting portion 121, the fastening portion 122, the fastening structure 123, the positioning plate 124, the rotating end 13, the second supporting portion 131, the limiting portion 132, the rotating seat 133, the rotating hole 134, the rotating plug 135, the elastic airbag 14, the reinforcing rib plate 15, the fixture cover plate 2, the cover plate body 21, the elastic sheet structure 22, the elastic member 221, the connecting sheet 222, the elastic sheet 223, the limiting sheet 224, the rotating shaft sleeve 23, the avoiding groove 24, the inverted fastening structure 25, the guide groove 26, the reinforcing rib 27, the clamping cavity 3, the limiting component 4, the limiting hole 41, the limiting shaft sleeve 42, the anti-falling plug 43, and the nylon base 5.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1, an embodiment of the present invention discloses a clamping fixture capable of adjusting cable diameter change, including a fixture base 1 and a fixture cover plate 2; the fixture base 1 comprises a base body 11, wherein one end of the base body 11 is provided with a fastening end 12 capable of being adjusted in at least two stages, and the other end of the base body 11 is provided with a rotating end 13 capable of being adjusted in at least two stages; meanwhile, the base body 11 is further provided with two elastic air bags 14 which extend upwards and are symmetrical relative to the longitudinal section, and the opposite side surfaces of the two elastic air bags 14 are of cambered surface structures. One end of the fixture cover plate 2 is in running fit with the rotating end 13, and the other end of the fixture cover plate 2 is in buckling connection with the buckling end 12; a clamping cavity 3 for clamping the cable is formed by enclosing the clamp cover plate 2, the clamp base 1 and the two elastic air bags 14, and the cable is clamped through the clamping cavity 3; adjusting the rotation matching position of the fixture cover plate 2 and the rotation end 13 and the buckling matching position of the fixture cover plate 2 and the buckling end 12, and extruding the two elastic air bags 14 to deform so as to adjust the adaptive cable diameter of the clamping cavity 3; in practical application, the nylon base 5 is installed on the fixture base 1 and fixed on a wall through an expansion fastener, and during fixing, the nylon base 5 can reliably support on the wall to form a stable supporting system.
Meanwhile, the inner arc surface of the elastic air bag 14 is matched with the outer side of the cable, so that the cable has better coating performance and can be stably clamped; when the cable diameter of the cable changes, the installation state of the clamp cover plate 2 can be adjusted on site in time to adapt to stable clamping after the cable diameter changes; through adjusting fixture apron 2 when the pivoted position of end 13 and the buckle position of lock joint end 12 rotate, can play the squeezing action to two elasticity gasbags 14 through fixture apron 2 and make two elasticity gasbags 14 draw close in opposite directions and press from both sides tightly the cable of placing in centre gripping chamber 3 to have good axial drawing force after guaranteeing the cable centre gripping.
The rotating position and the buckling position between the fixture cover plate 2 and the fixture base 1 are adjusted to form different extrusion forces to the two elastic air bags 14, and the two elastic air bags 14 can be moved close to each other to change the size of the clamping cavity 3, so that the cables with different cable diameters can be adapted, and particularly, the cables can be adapted by adjusting the assembling state quickly on a construction site.
As shown in fig. 2 and 3, the buckling end 12 includes a first supporting portion 121 fixedly connected to the base body 11 and extending outward, and a hooking portion 122 vertically fixedly connected to the first supporting portion 121, and at least two stages of longitudinally arranged hooking structures 123 are disposed on a side surface of the hooking portion 122 close to the elastic airbag 14, wherein the first supporting portion 121, the hooking portion 122 and the base body 11 are integrally formed, so as to form a stable integral structure, and thus have good bearing strength and supporting strength; when the fixture cover plate 2 is fastened, the fixture cover plate 2 is fastened in the hooking structures 123 of different levels to realize the fastening depth of the fixture cover plate 2.
Meanwhile, a positioning plate 124 for positioning the fixture cover plate 2 is further fixedly connected between the first supporting portion 121 and the hooking portion 122, and the fixture cover plate 2 is guided and limited by the positioning plate 124 in the buckling process, so that the situation that the fixture cover plate 2 sideslips due to reverse acting force of a cable is avoided.
As shown in fig. 2 and 3, the rotating end 13 includes a second supporting portion 131 fixedly connected to the base body 11 and extending outward, and a limiting portion 132 vertically fixedly connected to the second supporting portion 131, and a rotating seat 133 is fixed between the second supporting portion 131 and the limiting portion 132, the rotating seat 133 is provided with at least two rotating holes 134 arranged longitudinally, and a rotating plug 135 is detachably mounted in the rotating hole 134; during assembly, the fixture cover plate 2 is installed on the rotating hole 134 through the rotating bolt 135, and downward fastening depth adjustment of the fixture cover plate 2 and extrusion acting force adjustment of the two elastic air bags 14, namely cable diameter adjustment of the adaptive clamping cavity 3, can be realized according to selection of the rotating holes 134 at different positions.
It should be noted that the base body 11, the first supporting portion 121, the positioning plate 124, the second supporting portion 131, the limiting portion 132 and the rotating seat 133 are integrally formed, so as to improve the strength and stability of the whole structure; in order to increase the strength between the base body 11 and the first and second support portions 121 and 131, as shown in fig. 4, a plurality of reinforcing ribs 15 are uniformly distributed in the width direction between the base body 11 and the first and second support portions 121 and 131; the integral molding can adopt die molding, and the material can adopt PA66 when in processing and manufacturing.
When the cables are compressed, the cable placed in the clamping cavity 3 types is clamped mainly by rotating and buckling the clamp cover plate 2, and the clamp cover plate 2 is required to have a good limiting effect and a cable compression effect; as shown in fig. 5, 6 and 7, the fixture cover plate 2 includes a cover plate body 21 having an arc structure and a spring structure 22 fixed on the arc top of the cover plate body 21, and a good guiding effect can be obtained when the cover plate body 21 is fastened and the two elastic airbags 14 are pressed against each other through the arc structure, so that the cover plate body 21 can reliably push the two elastic airbags 14; meanwhile, after the cable is compressed, the elastic sheet structure 22 plays a role in extruding and limiting the cable, so that the clamped cable can be fixed all around, and good circumferential drawing force is guaranteed.
In order to enable the cover plate body 21 to be matched with the rotating end 13 on the fixture base 1, the rotating shaft sleeve 23 coaxially matched with the rotating hole 134 is fixedly connected to the position, close to the rotating end 13, of the cover plate body 21, the position, close to the rotating end 13, of the cover plate body 21 is further provided with an avoiding groove 24 matched with the rotating seat 133, the rotating seat 133 is avoided through the avoiding groove 24, the cover plate body 21 can have a large rotating range, and interference of the rotating seat 133 cannot be caused after the rotating installation position is adjusted. Meanwhile, in order that the cover plate body 21 can be matched with the buckling end 12 on the fixture base 1, a reverse buckling structure 25 in buckling fit with the hooking structure 123 is fixedly connected to a position, close to the buckling end 12, of the cover plate body 21, and a guide groove 26 in fit with the positioning plate 124 is further formed in a position, close to the buckling end 12, of the cover plate body 21; the cover plate body 21 is limited after the reverse buckling structure 25 is clamped with the hooking structure 123, so that a relatively fixed state is formed between the cover plate body 21 and the base, and the cable is clamped; meanwhile, the guide groove 26 is matched with the positioning plate 124, so that the transverse limiting effect can be achieved when the cover plate body 21 is buckled, and the transverse sliding condition generated after the cover plate body 21 is subjected to the reverse acting force of the cable is avoided.
After the cover plate body 21 and the base body 11 are fastened and matched, reliable limiting needs to be performed again to avoid the possibility that the fastened and matched cover plate body comes off after being vibrated, as shown in fig. 1, fig. 2 and fig. 5, the rotating end 13 is further provided with a limiting component 4 for preventing tripping, the limiting component 4 comprises at least two limiting holes 41 which are arranged on the positioning plate 124 and longitudinally arranged, the positions of the limiting holes 41 are matched with the positions of the corresponding hooking and buckling structures 123, namely, the one-stage hooking and buckling structure 123 corresponds to one limiting hole 41, and after the hooking and buckling structure 123 of each stage is used for limiting and buckling the cover plate body 21, the limiting function is performed through the corresponding limiting hole 41; meanwhile, the anti-dropping cover plate comprises a limiting shaft sleeve 42 which is fixedly connected to the part, close to the buckling end 12, of the cover plate body 21 and is coaxial with the limiting hole 41, and an anti-dropping bolt 43 is detachably arranged in the limiting shaft sleeve 42 and the limiting hole 41; the anti-tripping bolt 43 sequentially passes through the limiting shaft sleeve 42 and the limiting hole 41 to secondarily limit the buckling end 12 of the cover plate body 21 and the base body 11, so that the tripping condition is avoided.
As shown in fig. 5 to 7, in order to compress the cable by the elastic sheet structure 22 after the cover plate body 21 is fastened in place, and in order to ensure that the cable is compressed by the elastic sheet structure 22 to be suitable for various states and that the elastic sheet structure 22 has good strength and elasticity, the elastic sheet structure 22 includes two elastic pressing members 221 which are fixedly connected to the cover plate body 21 and are symmetrical with respect to a longitudinal section, and each elastic pressing member 221 includes a connecting piece 222 which is fixedly connected to the cover plate body 21 and an elastic pressing piece 223 which is fixedly connected to the end of the connecting piece 222; the connecting piece 222 extends along a side away from the longitudinal section in an inclined manner, the pressing piece 223 extends along a side close to the longitudinal section, and the connecting piece 222 is further fixedly connected with a limiting piece 224 extending towards the pressing piece 223. When the cover plate body 21 is buckled downwards, the cable is contacted with the elastic sheet 223 and performs a process of extrusion or reset within the elastic strength range of the connecting sheet 222; meanwhile, in order to avoid the possibility that the spring plate 223 is broken after being pressed, the maximum deformation of the spring plate 223 is limited through the limiting plate 224, so that the spring plate structure 22 can have good structural stability when the cover plate body 21 is buckled to the maximum position.
In order to ensure that the spring plate 223 can be in good contact with the cable and maintain surface contact when the cable is extruded, the bottom surface of the spring plate 223 facing the clamping cavity 3 is in an arc-shaped structure; and guarantee that the spring plate 223 is clockwise to be out of shape when guaranteeing that apron body 21 is spacing downwards to the cable, prevent the cracked condition, let the contained angle between connection piece 222 and the spring plate 223 be the acute angle, can both guarantee to make progress the rotation of spring plate 223 after shell fragment structure 22 receives the counter-acting force to can play the effect of carrying out the extrusion location to the cable with guaranteeing to make progress the spring plate 223 under spacing piece 224 effect.
The whole cover plate body 21 bears higher reverse acting force after positioning the cable, and is easy to break under the action of force particularly in the middle of the cover plate body 21; in order to increase the strength of the cover plate body 21 and avoid the fracture, as shown in fig. 6 and 7, the cover plate body 21 is provided with a protruding reinforcing rib 27 located on both sides of the avoiding groove 24.
During actual installation, installation nylon base 5 can also satisfy the spacing support to the inflation fastener when guaranteeing from the wall height on fixture base 1, as shown in fig. 8, for actual installation application scene structure sketch map, when the installation, assemble nylon base 5 and fixture base 1 fast, then pass fixture base 1 and nylon base 5 after-fixing with the inflation fastener on the tunnel inner wall, and form the contact of 3 at least contact surfaces between nylon base 5 and tunnel inner wall, thereby can satisfy the outrigger.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.