CN216290020U

CN216290020U - Porous annular concrete pipe for cable

Info

Publication number: CN216290020U
Application number: CN202121705094.4U
Authority: CN
Inventors: 郭志涛; 王亚兰
Original assignee: Shandong Zhongneng Tower Co ltd
Current assignee: Shandong Zhongneng Tower Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-04-12
Anticipated expiration: 2031-07-26

Abstract

The utility model relates to a porous annular concrete pipe for cables, which comprises a plurality of bodies which are sequentially spliced end to end, wherein the bodies are provided with a plurality of cable holes for cables to penetrate through. According to the utility model, through the arrangement of the plurality of bodies, the processed bodies are directly spliced into the concrete pipe on site during construction, so that the construction procedures of site formwork erecting, pouring, maintenance and the like are reduced, the time consumed by site construction is reduced, the construction speed is improved, meanwhile, the bodies are manufactured in a factory, the raw materials enter the factory to leave the factory, the conditions such as the temperature during manufacturing are ensured in the factory, and meanwhile, each link has a quality control point and inspection, so that the quality of the concrete pipe is ensured; through the setting of concrete and steel reinforcement cage, the intensity of body has been strengthened.

Description

Porous annular concrete pipe for cable

Technical Field

The utility model belongs to the field of power transmission equipment, and particularly relates to the technical field of cable access to transformer substation channels and overhead lines.

Background

With the development of national economy and science and technology, the demand of urban industrial electricity and resident electricity is increased. A large number of traditional overhead lines shuttle at each corner of a city, so that the appearance of the city is seriously influenced, and the rhythm of rapid development of the city cannot be kept up with. The overhead line is shifted to the underground from the ground, which is a great trend of the development of the power industry, and the problem that the urban cable erection influences the urban beauty can be well solved. The existing modes for solving the problem of the overhead line entering the ground are a pipe gallery, a cable trench, an underground buried pipe and the like. The most common method is cable trench and underground pipe burying, for example, the pipe burying construction process, which generally comprises the steps of firstly digging and tamping earthwork, constructing a cushion layer, compacting the cushion layer, laying and fixing the cable pipe, building a template, pouring concrete, vibrating and compacting, and maintaining. Therefore, a large amount of work is completed on site, the time consumed on site is long, the consumed manpower, the consumed machinery and the time cost are high, and the construction speed is low. The on-site pouring and maintenance have requirements on temperature and season, and the quality of the on-site poured concrete cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the porous annular concrete pipe for the cable, so that the time consumed by field construction is reduced, the construction speed is improved, and the quality of the concrete pipe is ensured.

The porous annular concrete pipe for the cable comprises a plurality of bodies which are sequentially spliced end to end, wherein a plurality of cable holes for the cable to pass through are formed in the bodies.

According to the preferred scheme, through the arrangement of the bodies, the processed bodies are directly spliced into the concrete pipe on site during construction, the construction procedures of site formwork erecting, pouring, maintenance and the like are reduced, the time consumed by site construction is reduced, the construction speed is improved, meanwhile, the bodies are manufactured in a factory, the raw materials enter the factory to leave a factory from the factory, the conditions such as temperature during manufacturing are guaranteed in the factory, and meanwhile, each link is provided with a quality control point and inspection, so that the quality of the concrete pipe is guaranteed.

Preferably, the body includes the concrete to and be located the framework of steel reinforcement in the concrete, the framework of steel reinforcement includes along the spiral muscle of body axial extension to and follow the body axial extension and evenly arrange the strengthening rib along body circumference, the strengthening rib is followed spiral muscle inboard and spiral muscle rigid coupling.

According to the preferred scheme, the strength of the body is enhanced through the arrangement of the concrete and the steel reinforcement framework, when the body is produced, the spiral ribs and the reinforcing ribs are welded by using a seam welder, the steel reinforcement framework is molded, the steel reinforcement framework is placed in a cylindrical porous annular concrete pipe steel mould, the core mould is fixed at a specific position, the concrete is poured, and the centrifugal steam curing process is adopted for molding. And opening the mold after the body reaches the mold opening strength, and drawing out the core mold, wherein a cavity, namely a cable hole, is formed at the position of the core mold.

Preferably, still including being located two body concatenation departments and along a plurality of connecting device of body circumference even setting, connecting device is including the screw rod that spanes the concatenation face, the screw rod has two fixed plates along body axial run through in proper order, and two fixed plates are fixed respectively on two bodies, it has two lock nut to go back threaded connection on the screw rod, and two fixed plates are located between two lock nut.

This preferred scheme is when using, through rotating lock nut, makes lock nut top to the fixed plate on to extrude two fixed plates and remove in opposite directions, simultaneously because fixed plate and this body coupling, consequently, two lock nut drive two fixed plates and have the trend of relative motion, under the effect of lock nut, fixed plate, screw rod, realize the connection between two bodies.

Preferably, two nut groups which are arranged along the axial direction of the body are arranged on the circumferential surface of the body, each nut group comprises embedded nuts which are uniformly and fixedly connected in the body along the circumferential direction of the body, the embedded nuts of the two nut groups are correspondingly arranged, and the two embedded nuts which are correspondingly arranged are respectively in threaded connection with the two fixing plates on the same connecting device.

This preferred scheme is convenient for realize the loading and unloading of fixed plate and embedded nut through embedded nut's setting.

Preferably, the pitch of the two ends of the spiral rib is smaller than that of the middle of the spiral rib. The intensity at body both ends is further strengthened in this preferred scheme's setting, guarantees the joint strength of body both ends junction.

Preferably, the body comprises a plug part arranged on one end face of the body, the diameter of the plug part is smaller than that of the body, and the other end face of the body is provided with a slot part matched with the plug part.

This preferred scheme is through the setting of plug portion and slot part, when giving the body connection to the positioning action.

Preferably, the outer circumferential surface of the plug portion is tapered. The preferred scheme is that the conical arrangement is adopted, so that the body is connected in a guiding mode.

Preferably, the plug structure further comprises a sealing gasket positioned at the groove bottom of the groove part, a gap exists between the plug part and the groove bottom of the groove part, and the thickness of the gap is smaller than that of the sealing gasket. This preferred scheme plays sealed effect through the setting of seal ring.

Preferably, the gap between the splicing surfaces of the two bodies is coated with sealant. This preferred scheme plays sealed waterproof effect through sealed setting up of gluing.

Preferably, the bottom surface of the body is a flat surface. The plane is arranged, the line-surface contact is changed into the surface-surface contact, and the horizontal height is easier to control during installation.

The utility model has the beneficial effects that: through the arrangement of the bodies, the processed bodies are directly spliced into the concrete pipe on site during construction, so that the construction processes of site formwork erecting, pouring, maintenance and the like are reduced, the time consumed by site construction is reduced, the construction speed is improved, meanwhile, the bodies are manufactured in a factory, the raw materials enter the factory and leave the factory after being delivered, the conditions such as the temperature during manufacturing are ensured in the factory, and meanwhile, each link is provided with a quality control point and inspection, so that the quality of the concrete pipe is ensured; through the setting of concrete and steel reinforcement cage, the intensity of body has been strengthened.

Drawings

FIG. 1 is a schematic partial front view of a body;

FIG. 2 is a schematic cross-sectional view taken at A-A in FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at C;

FIG. 5 is a schematic view of a splice of two bodies;

FIG. 6 is an enlarged view of FIG. 5 at D;

shown in the figure:

1. the body, 2, strengthening rib, 3, spiral muscle, 4, embedded nut, 5, fixed plate, 6, screw rod, 7, seal ring, 8, sealed glue, 9, lock nut, 10, plug portion, 11, slot portion, 12, plane.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to the attached drawings 1-6, the porous annular concrete pipe for the cable comprises a plurality of bodies 1 which are sequentially spliced end to end, sealant 8 is coated in a gap of splicing surfaces of the two bodies 1, the bottom surface of each body 1 is a plane 12, seven cable holes for allowing cables to pass through are formed in each body 1, the axis of one cable hole is collinear with the axis of each body 1, the other six cable holes are uniformly distributed in the circumferential direction of the cable hole, and the axes of the other six cable holes are parallel to the axis of each body 1.

The diameter of each cable hole is larger than 1.5 times of the outer diameter of the cable, so that heat dissipation is facilitated during the operation of the cable. The number of the cable holes can be adjusted according to the requirements of customers so as to meet the requirements of the customers, a porous cable channel is formed, and the value of the porous annular concrete pipe is increased.

Body 1 includes the concrete to and be located the steel reinforcement framework in the concrete, steel reinforcement framework includes along 1 axial extension of body spiral muscle 3 to and along 1 axial extension of body and along 1 circumference reinforcing rib 2 of evenly arranging, reinforcing rib 2 follows 3 inboard and the 3 rigid couplings of spiral muscle, the pitch at 3 both ends of spiral muscle is less than middle pitch.

The body 1 comprises a plug part 10 arranged on one end face of the body 1, the diameter of the plug part 10 is smaller than that of the body 1, the outer circumferential surface of the plug part 10 is conical, and the other end face of the body 1 is provided with a slot part 11 matched with the plug part 10.

Sealing washer 7 is arranged at the bottom of slot part 11, and a gap exists between plug part 10 and the bottom of slot part 11, and the thickness of the gap is smaller than that of sealing washer 7.

Porous annular concrete pipe is still including being located 1 concatenation departments of two bodies and along a plurality of connecting device of 1 circumference even setting of body, connecting device is including crossing the screw rod 6 of concatenation face, screw rod 6 has two fixed plates 5 along 1 axial of body run through in proper order, it has two lock nut 9 to go back threaded connection on the screw rod 6, and two fixed plates 5 are located between two lock nut 9, and fixed plate 5 includes the roof and the rigid coupling is at the fixing bolt of roof bottom surface, sets up the perforation that supplies the screw rod to run through on the roof.

Be equipped with on the periphery of body 1 along its axial two sets of nut groups of arranging, nut group is including the embedded nut 4 of the even rigid coupling in body 1 along body 1 circumference, embedded nut 4 and fixing bolt threaded connection, and the embedded nut 4 of two sets of nut groups corresponds the setting, and two embedded nuts 4 that correspond the setting respectively with 5 threaded connection of two fixed plates on the same connecting device.

The embedded nuts are arranged between 4 positions and two adjacent reinforcing ribs 2.

When the self-locking type self-locking device is used, the bodies 1 are conveyed to the site, the bodies 1 are sequentially arranged, the planes 12 of the bodies 1 are in contact with a cushion layer, then the sealing rings are placed at the bottoms of the slot parts 11, the plug parts 10 of the next bodies 1 are inserted into the slots, then the fixing plates 5 are connected with the embedded nuts 4, the two fixing plates 5 penetrate through the screw rods 6, the locking nuts are rotated to be pressed against the fixing plates 5, the two fixing plates are extruded under the action of the two locking nuts, connection between the two bodies is achieved, and the like, all the connecting devices are installed in place, and therefore sequential installation of the bodies 1 is achieved.

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and 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 changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.

Claims

1. Porous annular concrete pipe for cable, its characterized in that: including a plurality of bodies (1) of head and the tail concatenation in proper order, set up the cable hole that a plurality of power supply cables passed on body (1), body (1) includes the concrete to and be located the framework of steel reinforcement in the concrete, framework of steel reinforcement includes spiral muscle (3) along body (1) axial extension, and follows body (1) axial extension and evenly arrange strengthening rib (2) along body (1) circumference, strengthening rib (2) are followed spiral muscle (3) inboard and spiral muscle (3) rigid coupling.

2. The porous annular concrete pipe for a cable according to claim 1, wherein: still including being located two body (1) concatenation departments and along a plurality of connecting device of body (1) circumference even setting, connecting device is including crossing screw rod (6) of concatenation face, screw rod (6) have two fixed plates (5) along body (1) axial run through in proper order, and two fixed plates (5) are fixed respectively on two bodies (1), it has two lock nut (9) to go back threaded connection on screw rod (6), and two fixed plates (5) are located between two lock nut (9).

3. The porous annular concrete pipe for a cable according to claim 2, wherein: be equipped with on the periphery of body (1) along its axial two sets of nut groups of arranging, nut group is including along the even rigid coupling in body (1) of body (1) circumference embedded nut (4), and embedded nut (4) of two sets of nut groups correspond the setting, and correspond two embedded nut (4) of setting and respectively with two fixed plate (5) threaded connection on the same connecting device.

4. The porous annular concrete pipe for a cable according to claim 1, wherein: the screw pitches at the two ends of the spiral rib (3) are smaller than the screw pitch in the middle.

5. The porous annular concrete pipe for a cable according to claim 1, wherein: the plug part (10) is arranged on one end face of the body (1), the diameter of the plug part (10) is smaller than that of the body (1), and the slot part (11) matched with the plug part (10) is arranged on the other end face of the body (1).

6. The porous annular concrete pipe for a cable according to claim 5, wherein: the outer circumferential surface of the plug portion (10) is conical.

7. The porous annular concrete pipe for a cable according to claim 6, wherein: the plug structure further comprises a sealing washer (7) positioned at the bottom of the slot part (11), a gap exists between the plug part (10) and the bottom of the slot part (11), and the thickness of the gap is smaller than that of the sealing washer (7).

8. The porous annular concrete pipe for a cable according to claim 1, wherein: and sealant (8) is coated in the gap of the splicing surfaces of the two bodies (1).

9. The porous annular concrete pipe for a cable according to claim 1, wherein: the bottom surface of the body (1) is a plane (12).