CN213937268U

CN213937268U - Horizontal elbow for bridge frame

Info

Publication number: CN213937268U
Application number: CN202022464680.6U
Authority: CN
Inventors: 何传荣
Original assignee: Jiangsu Rongnian Electric Co ltd
Current assignee: Jiangsu Rongnian Electric Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-10
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a crane span structure is with curved logical of level, including the L venturi tube, first recess has all been seted up to four side inner walls of L venturi tube top opening part and four side inner walls of bottom opening part, the inside a plurality of spring that is equipped with of first recess, spring bottom and L venturi tube fixed connection, the fixed clamp plate that is equipped with in spring top, the clamp plate is located one side top of spring top and is equipped with the gag lever post through the bearing rotation, the clamp plate opposite side is articulated with L venturi tube inner wall activity. The utility model discloses a cable conductor is at the pulling in-process, because the effect of frictional force, gag lever post rotation, guide bar rotate and the down tube rotates, is transformed into rolling friction with the sliding friction that cable conductor and L venturi tube take place, makes frictional force reduce greatly, and is further, and the clamp plate contacts with the cable conductor surface all the time through the effect of spring elasticity, makes it obtain simple fixed, and stability is strong.

Description

Horizontal elbow for bridge frame

Technical Field

The utility model relates to a crane span structure technical field, concretely relates to horizontal elbow for crane span structure.

Background

The cable bridge is a horizontal bend which can connect cables to another device from one device inside in a tidy manner, does not affect the external appearance of the framework, and is used when the cables need to be bent in the framework, wherein bridge accessories such as a horizontal bend, an upper vertical tee, a lower vertical tee, a horizontal cross and the like need to be assembled according to the line trend of the cables in the actual cable laying construction.

But present level is curved to be led to when in-service use, and the cable conductor is curved when passing through inside wearing out at the level, because frictional force is too big, has probably damaged the outside protection cortex of cable conductor very much, and then has influenced the normal use of cable conductor, and the cable conductor is curved in the level and leads to inside loose in disorder, and stability is relatively poor.

Therefore, it is necessary to invent a horizontal elbow for a bridge frame to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a horizontal elbow for a bridge, which is characterized in that in the process of pulling a cable, due to the action of friction force, a limiting rod rotates, a guide rod rotates and an inclined rod rotates, so that the sliding friction between the cable and an L-shaped pipe is converted into rolling friction, and the friction force is greatly reduced; furthermore, the pressing plate is always contacted with the surface of the cable under the action of the elastic force of the spring, so that the pressing plate is simply fixed and has strong stability, and the defects in the technology are overcome.

In order to achieve the above object, the present invention provides the following technical solutions: a horizontal elbow for a bridge frame comprises an L-shaped pipe, wherein first grooves are respectively formed in the inner walls of four sides of the top opening and the inner walls of four sides of the bottom opening of the L-shaped pipe, a plurality of springs are arranged in the first groove, the bottom ends of the springs are fixedly connected with the L-shaped pipe, the top end of the spring is fixedly provided with a pressing plate, the top of one side of the pressing plate, which is positioned above the spring, is rotatably provided with a limiting rod through a bearing, the other side of the pressure plate is movably hinged with the inner wall of the L-shaped pipe, the bent part at the bottom and the bent part at the top of the L-shaped pipe are both provided with a first rotating rod through a bearing in a rotating way, a guide rod is fixedly arranged on the outer side of the first rotating rod, second grooves are respectively arranged on the inner walls of the front side and the rear side of the bent part of the L-shaped pipe, the second groove is internally provided with a second rotating rod, two ends of the second rotating rod are rotatably connected with the L-shaped pipe through bearings, and an inclined rod is fixedly arranged on the outer side of the second rotating rod.

Preferably, a plurality of the springs are uniformly distributed in the first groove in a rectangular array.

Preferably, two groups of four pressing plates are arranged at the top opening and the bottom opening of the L-shaped pipe and are in end contact with each other to form a rectangle.

Preferably, the diagonal rod is arranged inside the second groove, and the surface of the diagonal rod protrudes out of the front side of the second groove.

In the technical scheme, the utility model provides a technological effect and advantage:

when a cable penetrates into the L-shaped pipe and passes through the limiting rod, the limiting rod starts to rotate under the action of friction force, so that sliding friction with the pressing plate when the cable is pulled is converted into rolling friction, when the cable passes through the bent part of the L-shaped pipe, the inclined rod and the guide rod again generate rolling friction with the cable, and similarly, when the cable penetrates out from the opening at the bottom of the L-shaped pipe, the cable again generates rolling friction with the four limiting rods at the bottom of the L-shaped pipe, and after the cable penetrates out, the pressing plate can be always contacted with the surface of the cable under the action of spring elasticity, compared with the prior art, when the device is actually used, when the cable penetrates out from the inside of the horizontal bent pipe, the traditional sliding friction is converted into rolling friction, so that the friction force is greatly reduced, the outer protective skin layer of the cable is not easy to damage, and the cable can be simply fixed inside the horizontal bent pipe due to the action of the spring elasticity, the stability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a right side half sectional view of a bent portion of an L-shaped pipe of the present invention;

fig. 3 is a side view of the present invention.

Description of reference numerals:

the device comprises a 1L-shaped pipe, a 2 first groove, a 3 spring, a 4 pressing plate, a 5 limiting rod, a 6 first rotating rod, a 7 guide rod, an 8 second groove, a 9 second rotating rod and a 10 inclined rod.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a horizontal elbow for bridge frame as shown in figures 1-3, which comprises an L-shaped pipe 1, wherein first grooves 2 are arranged on the inner walls of four sides of the top opening and the inner walls of four sides of the bottom opening of the L-shaped pipe 1, a plurality of springs 3 are arranged in the first grooves 2, the bottom end of each spring 3 is fixedly connected with the L-shaped pipe 1, a pressing plate 4 is fixedly arranged at the top end of each spring 3, a limiting rod 5 is arranged at the top of one side of the pressing plate 4 above the corresponding spring 3 through the rotation of a bearing, the other side of the pressing plate 4 is movably hinged with the inner wall of the L-shaped pipe 1, a first rotating rod 6 is arranged at the bottom bending part and the top bending part of the L-shaped pipe 1 through the rotation of the bearing, a guide rod 7 is fixedly arranged at the outer side of the first rotating rod 6, second grooves 8 are arranged on the inner walls of the front and the back sides of the bending part of the L-shaped pipe 1, a second rotating rod 9 is arranged in the second groove 8, the two ends of the second rotating rod 9 are rotatably connected with the L-shaped pipe 1 through bearings, and an inclined rod 10 is fixedly arranged on the outer side of the second rotating rod 9.

Further, in the above technical solution, a plurality of the springs 3 are uniformly distributed in the first groove 2 in a rectangular array.

Further, in the above technical scheme, two sets of four pressing plates 4 at the top opening and the bottom opening of the L-shaped tube 1 are all in end contact to form a rectangle.

Further, in the above technical solution, the inclined rod 10 is disposed inside the second groove 8, and the surface of the inclined rod 10 protrudes from the front side of the second groove 8.

The implementation mode is specifically as follows: when the utility model is used, the worker fixes the device at the place needing to be used through the external parts, then the cable is penetrated through the opening at the top of the L-shaped pipe 1 and is penetrated out from the opening at the bottom of the L-shaped pipe, one end of the four pressing plates 4 at the top of the cable far away from the opening of the L-shaped pipe 1 is stressed to move downwards for a small distance when the cable is penetrated, the spring 3 is stressed to deform and contract, when the cable passes through the limiting rod 5, the limiting rod 5 starts to rotate due to the action of friction force, so that the sliding friction generated by the cable when being pulled and the pressing plates 4 is converted into rolling friction, the friction force is greatly reduced, when the cable passes through the bending part of the L-shaped pipe 1, the inclined rod 10 and the guide rod 7 also convert the sliding friction between the cable and the L-shaped pipe 1 into rolling friction, so that the friction force between the cable and the L-shaped pipe 1 is reduced again, similarly, when the cable passes through the bottom opening of the L-shaped pipe 1, the cable is rubbed with the L-shaped pipe 1 through the four limiting rods 5 at the bottom again in a rolling manner, thereby avoiding the damage of the sheath of the cable caused by excessive friction force, when the cable passes through the cable, the pressing plate 4 can be always contacted with the surface of the cable under the action of the elastic force of the spring 3, thereby simply fixing the cable, increasing the stability of the cable in the L-shaped pipe 1, and simultaneously not hindering the cable from being pulled out again through the bottom opening of the L-shaped pipe 1 due to the requirement of a user, the use is convenient, the embodiment particularly solves the problems that when the current horizontal bend in the prior art is actually used, the cable passes through the horizontal bend, the cable is too large in friction force, the outer protective sheath of the cable is possibly damaged, the normal use of the cable is influenced, and the cable is loose and messy in the horizontal bend, poor stability.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a crane span structure is with horizontal elbow, includes L venturi tube (1), its characterized in that: the inner walls of four sides of the top opening of the L-shaped pipe (1) and the inner walls of four sides of the bottom opening are respectively provided with a first groove (2), a plurality of springs (3) are arranged inside the first grooves (2), the bottom ends of the springs (3) are fixedly connected with the L-shaped pipe (1), the top end of each spring (3) is fixedly provided with a pressing plate (4), the top of one side, positioned above the springs (3), of each pressing plate (4) is rotatably provided with a limiting rod (5) through a bearing, the other side of each pressing plate (4) is movably hinged with the inner wall of the L-shaped pipe (1), the bent part at the bottom and the bent part at the top of the L-shaped pipe (1) are respectively rotatably provided with a first rotating rod (6) through bearings, the outer side of each first rotating rod (6) is fixedly provided with a guide rod (7), the inner walls of the front side and the rear side of the bent part of the L-shaped pipe (1) are respectively provided with a second groove (8), and a second rotating rod (9) is arranged inside each second groove (8), both ends of the second rotating rod (9) are rotatably connected with the L-shaped pipe (1) through bearings, and an inclined rod (10) is fixedly arranged on the outer side of the second rotating rod (9).

2. The horizontal elbow for the bridge frame of claim 1, wherein: a plurality of the springs (3) are uniformly distributed in the first groove (2) in a rectangular array.

3. The horizontal elbow for the bridge frame of claim 1, wherein: two sets of four pressing plates (4) are arranged at the top opening and the bottom opening of the L-shaped pipe (1) and are in end contact with each other to form a rectangle.

4. The horizontal elbow for the bridge frame of claim 1, wherein: the inclined rod (10) is arranged in the second groove (8), and the surface of the inclined rod (10) protrudes out of the front side of the second groove (8).