CN111764729B

CN111764729B - Temporary cable supporting rack for construction

Info

Publication number: CN111764729B
Application number: CN202010585265.8A
Authority: CN
Inventors: 高志惠; 何志康; 蒋义
Original assignee: China MCC5 Group Corp Ltd
Current assignee: China MCC5 Group Corp Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-08-24
Anticipated expiration: 2040-06-24
Also published as: CN111764729A

Abstract

The invention discloses a temporary cable support frame for construction, which belongs to the technical field of cable overhead and is mainly used for splitting the support frame into a fixed rod and a movable rod which are connected through a movable joint structure, so that when a constructor faces the condition that the support frame needs to be bent, the position between the fixed rod and the movable rod can be adjusted through the movable joint structure, and the normal operation of cable erection engineering is facilitated.

Description

Temporary cable supporting rack for construction

Technical Field

The invention relates to the technical field of cable overhead, in particular to a temporary cable support frame for construction.

Background

In the middle of the project construction, often the condition that needs arrange transmission cable temporarily to satisfy job site power consumption demand appears. In contrast, the national ministry of construction promulgates release JGJ46-2005 "construction site temporary electricity utilization safety specifications", which specifies in detail the standards for the installation of overhead cables, wherein in some special construction environments, it is extremely difficult to deploy a support frame to meet the standard requirements. At this time, the support part on the support frame can normally support the cable by bending the shaft part of the support frame by the constructor. But it is obviously inconvenient to bend the rod body part of the support frame on site, and the strength performance of the bent support frame has great loss, so that certain potential safety hazards are caused.

Disclosure of Invention

The invention aims to provide a temporary cable support frame for construction, wherein a rod body part of the temporary cable support frame can be quickly bent so as to be suitable for the condition that the temporary cable support frame needs to be bent in the cable erection process.

The embodiment of the invention is realized by the following steps:

the utility model provides a construction is with interim cable supporting rack, includes the supporting rack body, the support frame body mainly comprises dead lever and movable rod, be connected through the activity joint structure between the tip of dead lever and movable rod, be equipped with the bearing part that is used for the support to live the cable on the movable rod.

Preferably, the movable joint structure comprises a ball hole arranged at the end of the fixed rod and a connecting ball arranged at the end of the movable rod, and the connecting ball and the ball hole are matched with each other to form a spherical pair.

Preferably, the connecting ball is made of an insulating material.

Preferably, the device further comprises a tensioning assembly, wherein the tensioning assembly comprises a plurality of first fixing pieces fixedly arranged on the outer surface of the fixed rod along the circumferential direction of the fixed rod, a plurality of second fixing pieces fixedly arranged on the outer surface of the movable rod along the circumferential direction of the movable rod and corresponding to the first fixing pieces, and a flexible structure with two ends respectively used for connecting the corresponding first fixing pieces and the second fixing pieces and with an adjustable length.

Preferably, the flexible structure mainly comprises a first steel wire rope, a movable lock catch and a second steel wire rope which are sequentially arranged from one end, connected with the first fixing piece, of the flexible structure to the other end, connected with the second fixing piece, of the flexible structure, wherein the movable lock catch comprises a lock catch sleeve and a lock core, the lock core is in sliding fit with an inner hole of the lock catch sleeve, the lock core can coaxially rotate relative to the lock catch sleeve, the lock catch sleeve is connected with the first steel wire rope, and the lock core is connected with the second steel wire rope;

still be equipped with on the hasp sleeve along its downthehole axial extension's sliding tray, be formed with on the lock core stretch into to the sliding tray in and with sliding tray sliding fit's stopper, the sliding tray is provided with a plurality ofly along its extending direction interval with the spacing groove of stopper looks adaptation, works as the stopper slides along the sliding tray to the open end of spacing groove when, the stopper can be followed the lock core and is gone into for the telescopic rotation action card of hasp in the middle of the spacing groove.

Preferably, the open end of spacing groove is the slot shape to when the stopper card is gone into in the spacing groove, extrude the stopper and make it take place elastic deformation, the stopper is elastic recovery behind the open end through the spacing groove.

Preferably, the soil layer anchoring device further comprises an anchoring inhaul cable and an anchoring plug, one end of the anchoring inhaul cable is connected with the fixed rod, the other end of the anchoring inhaul cable is connected with the anchoring plug, and the anchoring plug is used for anchoring in the soil layer.

Preferably, the periphery of the fixed rod is sleeved with an anchoring ring, and the fixed rod is connected with the anchoring inhaul cable through the anchoring ring.

Preferably, the inner circumferential surface of the anchoring ring is fixedly connected with a plurality of elastic friction members which are uniformly arranged along the circumferential direction at intervals, the anchoring ring is connected with the fixing rod through the elastic friction members, and the fixing rod and the elastic friction members are mutually pressed and matched to generate friction force, so that the anchoring ring is fixed at the axial position of the fixing rod.

Preferably, a contact arc surface attached to the periphery of the fixing rod is formed on the elastic friction member, and the elastic friction member is in contact with the periphery of the fixing rod through the contact arc surface.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

(1) the invention mainly splits the supporting frame into the fixed rod and the movable rod which are connected through the movable joint structure, so that when a constructor faces the situation that the supporting frame needs to be bent, the relative position between the fixed rod and the movable rod can be adjusted through the movable joint structure, and the normal operation of cable erection engineering is facilitated.

(2) In order to realize the locking of the movable joint structure, the invention is correspondingly provided with the tensioning assembly to tension the movable rod and the fixed rod, thereby improving the mutual contact friction force between the ball hole and the connecting ball, so that the movable rod can overcome the tendency that the supporting part of the movable rod moves relative to the fixed rod after being provided with the cable.

(3) The connecting ball forming the movable joint structure is correspondingly made of insulating materials so as to cut off the electricity conduction of the fixed rod and the movable rod, thereby improving the use safety of the whole supporting frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a flexure structure according to embodiment 1 of the present invention;

fig. 3 is a schematic cross-sectional view taken along line a-a in fig. 1.

[ description of specific symbols ]:

1-fixed rod, 2-movable rod, 3-supporting part, 4-connecting ball, 5-first fixing part, 6-second fixing part, 7-flexing structure, 701-first steel wire rope, 702-second steel wire rope, 703-locking sleeve, 704-lock core, 705-sliding groove, 706-limiting block, 707-limiting groove, 8-anchoring inhaul cable, 9-anchoring plug, 10-anchoring ring and 11-elastic friction part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, embodiment 1 provides a temporary cable support for construction, which is characterized by including a support body, where the support body mainly includes a fixed rod 1 and a movable rod 2, the fixed rod 1 is connected with an end of the movable rod 2 through a movable joint structure, and the movable rod 2 is provided with a support portion 3 for supporting a cable.

This embodiment 1 is mainly with the dead lever 1 and the movable rod 2 that the supporting rack body split is connected through the activity joint structure to make constructor when the supporting rack body's the condition of buckling in the face of needs, can adjust the relative position between the supporting part 3 on dead lever 1 and the movable rod 2 through the activity joint structure, make things convenient for the normal clear of cable erection engineering.

The above-mentioned movable joint structure can be selected from the prior art, and as a preferred embodiment, in this embodiment 1, the movable joint structure includes a ball hole provided at the end of the fixed rod 1, and a connecting ball 4 provided at the end of the movable rod 2, and the connecting ball 4 and the ball hole are adapted to each other to form a spherical pair. The spherical pair is used as a movable joint structure, so that the capability of the movable rod 2 to freely move in a large range can be guaranteed, and the support frame can be effectively guaranteed to be suitable for various bending requirements.

Further, in this embodiment 1, the connecting ball 4 is made of an insulating material, so that the connecting ball 4 can block the electricity conduction between the movable rod 2 and the fixed rod 1, thereby improving the safety of the entire support frame.

Further, in order to ensure that the support portion 3 of the movable rod 2 can stably support the cable, the movable rod 2 and the fixed rod 1 need to be locked therebetween, that is, the movable joint structure needs to be locked. Therefore, in this embodiment 1, the device further includes a tensioning assembly, the tensioning assembly includes a plurality of first fixing elements 5 fixed on the outer surface of the fixing rod 1 along the circumferential direction of the fixing rod 1, a plurality of second fixing elements 6 fixed on the outer surface of the movable rod 2 along the circumferential direction of the movable rod 2 and corresponding to the first fixing elements 5, and a flexible structure 7 with two ends respectively used for connecting the corresponding first fixing elements 5 and the corresponding second fixing elements 6 and with an adjustable length.

Wherein, with the contraction of the flexing structure 7, it provides a pulling force to the first fixing piece 5 and the second fixing piece 6, and the contact pressure between the ball hole on the fixed bar 1 and the connecting ball 4 on the movable bar 2 is gradually increased by the pulling force, thereby overcoming the tendency that the movable bar 2 actually has a movement relative to the fixed bar 1 due to the cable erected on the bearing 3 thereof.

It should be noted that the distance between the connecting ball 4 and the bearing 3 in the axial direction of the movable rod 2 is not made too long to avoid that the moment arm of the cable applying a load to the bearing 3 is too large and the locking effect of the movable joint structure is affected.

More specifically, referring to fig. 2, regarding the specific style of the flexible structure 7 and the realization of the adjustable length function, in this embodiment 1, the flexible structure 7 is mainly composed of a first steel wire rope 701, a movable lock catch and a second steel wire rope 702 which are sequentially arranged along the end thereof used for connecting with the first fixing member 5 to the end thereof used for connecting with the second fixing member 6, the movable lock catch includes a lock catch sleeve 703 and a lock core 704, the lock core 704 is in sliding fit with the inner hole of the lock catch sleeve 703, the lock core 704 can coaxially rotate relative to the lock catch sleeve 703, the lock catch sleeve 703 is connected with the first steel wire rope 701, and the lock core 704 is connected with the second steel wire rope 702;

the locking sleeve 703 is further provided with a sliding groove 705 extending axially along an inner hole thereof, the lock cylinder 704 is provided with a limiting block 706 extending into the sliding groove 705 and slidably fitting the sliding groove 705, the sliding groove 705 is provided with a plurality of limiting grooves 707 adapted to the limiting block 706 at intervals along the extending direction thereof, and when the limiting block 706 slides to the opening end of the limiting groove 707 along the sliding groove 705, the limiting block 706 can be clamped in the limiting groove 707 along with the rotation of the lock cylinder 704 relative to the locking sleeve 703.

After the lock cylinder 704 moves to a proper position along the axial direction of the lock sleeve 703 in the inner hole of the lock sleeve 703, an operator can rotate the whole lock cylinder 704 along the circumferential direction, so that the limiting block 706 on the lock cylinder 704 is clamped in the limiting groove 707, and the relative movement between the lock cylinder 704 and the lock sleeve 703 in the axial direction is limited, so that the whole flexible structure 7 can tighten the fixed rod 1 and the movable rod 2.

In order to improve the stability of the clamping connection between the limiting block 706 and the limiting groove 707 and prevent the limiting block 706 from being accidentally separated from the limiting groove 707 after the fixed rod 1 and the movable rod 2 are tightened by the whole flexing structure 7, as a preferred embodiment, in this embodiment 1, the opening end of the limiting groove 707 is in a narrow-mouth shape, so that when the limiting block 706 is clamped in the limiting groove 707, the limiting block 706 is pressed and elastically deformed, and the limiting block 706 elastically recovers after passing through the opening end of the limiting groove 707; wherein, the open end of the above-mentioned spacing groove 707 is the narrow mouth shape specifically indicates: the opening end of the limiting groove 707 is narrower than other parts, and the elastic deformation for preventing the accidental separation between the limiting groove 707 and the limiting block 706 has the advantages of simple structure and convenient implementation.

In addition, in the embodiment 1, an anchoring cable 8 and an anchoring plug 9 are further included, one end of the anchoring cable 8 is connected with the fixing rod 1, and the other end of the anchoring cable is connected with the anchoring plug 9, and the anchoring plug 9 is used for anchoring in the soil layer. When the fixing frame is used, an implementer can apply pulling force to the fixing rod 1 through the anchoring plug 9, so that the fixing rod 1 is stably stressed, and the whole supporting frame body is stably stressed.

According to the difference of the bending degree between the movable rod 2 and the fixed rod 1 and the difference of the load born by the supporting part 3 on the movable rod 2, the position of the connecting point between the anchoring inhaul cable 8 and the fixed rod 1 is often required to be adjusted for many times, so that the fixed rod 1 can be in a state of stress balance by the tension provided by the anchoring inhaul cable 8.

Referring to fig. 1 and 3, as a preferred embodiment, in embodiment 1, an anchoring ring 10 is sleeved on an outer periphery of the fixing rod 1, the fixing rod 1 is connected to an anchoring cable 8 through the anchoring ring 10, a plurality of elastic friction members 11 are fixedly connected to an inner peripheral surface of the anchoring ring 10, the elastic friction members 11 are uniformly arranged along a circumferential direction of the fixing rod at intervals, the anchoring ring 10 is connected to the fixing rod 1 through the elastic friction members 11, and the fixing rod 1 and the elastic friction members 11 are mutually pressed and matched to generate a friction force, so that a position of the anchoring ring 10 in an axial direction of the fixing rod 1 is fixed.

Wherein, the implementation personnel application of force is in anchor ring 10, overcomes above-mentioned frictional force, can make whole anchor ring 10 along the axial displacement of dead lever 1, compares in other pipe strap installed parts such as staple bolt, and anchor ring 10 that this embodiment 1 provided does not have the disassembling process when position control, and it is more convenient to use.

As a preferred embodiment, in the embodiment 1, the elastic friction member 11 is formed with a contact arc surface which is attached to the outer circumference of the fixing rod 1, and the elastic friction member 11 is in contact with the outer circumference of the fixing rod 1 through the contact arc surface, so as to optimize the contact form between the elastic friction member 11 and the fixing rod 1.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary cable support frame for construction is characterized by comprising a support frame body, wherein the support frame body mainly comprises a fixed rod and a movable rod, the fixed rod is connected with the end part of the movable rod through a movable joint structure, and the movable rod is provided with a supporting part for supporting a cable; the movable joint structure comprises a ball hole arranged at the end part of the fixed rod and a connecting ball arranged at the end part of the movable rod, and the connecting ball and the ball hole are mutually matched to form a spherical pair;

the tensioning assembly comprises a plurality of first fixing pieces fixedly arranged on the outer surface of the fixed rod along the circumferential direction of the fixed rod, a plurality of second fixing pieces fixedly arranged on the outer surface of the movable rod along the circumferential direction of the movable rod and corresponding to the first fixing pieces, and a flexible structure with two ends respectively used for connecting the corresponding first fixing pieces and the second fixing pieces and with adjustable length;

the flexible structure is mainly composed of a first steel wire rope, a movable lock catch and a second steel wire rope which are sequentially arranged from one end, connected with the first fixing piece, of the flexible structure to the end, connected with the second fixing piece, of the flexible structure, wherein the movable lock catch comprises a lock catch sleeve and a lock core, the lock core is in sliding fit with an inner hole of the lock catch sleeve, the lock core can coaxially rotate relative to the lock catch sleeve, the lock catch sleeve is connected with the first steel wire rope, and the lock core is connected with the second steel wire rope;

2. A construction temporary cable support according to claim 1, wherein the connecting balls are made of an insulating material.

3. A construction temporary cable support according to claim 1, wherein the open end of the stopper groove is formed in a narrow shape so as to press and elastically deform the stopper when the stopper is caught in the stopper groove, the stopper being elastically restored after passing through the open end of the stopper groove.

4. A construction temporary cable support according to claim 1, further comprising an anchoring cable having one end connected to the fixing rod and the other end connected to an anchoring plug for anchoring in the ground.

5. A temporary cable support for construction according to claim 4, wherein an anchor ring is fitted around the outer circumference of the fixing rod, and the fixing rod is connected to the anchor cable through the anchor ring.

6. A temporary cable support for construction as claimed in claim 5, wherein a plurality of elastic friction members are fixedly coupled to an inner circumferential surface of the anchoring ring at regular intervals along a circumferential direction thereof, the anchoring ring is coupled to the fixing rod by the elastic friction members, and the fixing rod and the elastic friction members are press-fitted to each other to generate a frictional force to fix the position of the anchoring ring in an axial direction of the fixing rod.

7. A construction temporary cable support according to claim 6, wherein the elastic friction member is formed with a contact arc surface to be fitted to an outer circumference of the fixing rod, and the elastic friction member is brought into contact with the outer circumference of the fixing rod through the contact arc surface.