CN218818769U

CN218818769U - Epoxy resin coating composite steel pipe for underground coal mine

Info

Publication number: CN218818769U
Application number: CN202222620546.XU
Authority: CN
Inventors: 刘惠文; 孙玉玺; 潘辉
Original assignee: Weifang Juli Building Materials Co ltd
Current assignee: Weifang Juli Building Materials Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-04-07
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a colliery is compound steel pipe of epoxy coating in pit, including first steel pipe, second steel pipe and sleeve pipe, set up the logical groove that two symmetries set up on the sheathed tube lateral wall, two it is same as the fixed establishment that carries out fixing to first steel pipe and second steel pipe all to be provided with in the logical inslot, fixed establishment includes two sliders of sliding connection in logical inslot, two the lower extreme of slider all is seted up flutedly, two equal sliding connection has trapezoidal piece in the recess, through two spring elastic connection between the inner wall of trapezoidal piece and recess, four fixed blocks of fixedly connected with on the sheathed tube lateral wall, four the fixed block is the rectangular distribution. The utility model discloses rational in infrastructure, through setting up fixed establishment, realize being connected first steel pipe and second steel pipe, compare in traditional connected mode, it is comparatively convenient that this connected mode installation is dismantled.

Description

Epoxy resin coating composite steel pipe for underground coal mine

Technical Field

The utility model relates to a steel pipe technical field especially relates to a colliery is compound steel pipe of epoxy coating in pit.

Background

The steel pipe has a hollow section, is a steel material having a length much greater than the diameter or circumference, is classified into a circular, square, rectangular and irregular steel pipe according to the sectional shape, is classified into a carbon structural steel pipe, a low alloy structural steel pipe, an alloy steel pipe and a composite steel pipe according to the material quality, and is classified into a steel pipe for a conveying pipeline, an engineering structure, a thermal device, a petrochemical industry, a machine manufacturing, a geological drilling, a high-pressure device, and the like according to the use.

The steel pipe that generally uses in the coal mine is the effect of support, construction mostly, but traditional steel pipe often need use the ring flange when connecting, need weld two ring flanges respectively to the both ends of two steel pipes, and the rethread bolt is fixed two ring flanges, but because there are more bolt and nut on the ring flange, such mode is very inconvenient when dismantling, and after using for a long time, the nut on the ring flange is easy not hard up moreover, can influence the fastness of connecting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the colliery is compound steel pipe of epoxy coating for underground use that proposes, through setting up fixed establishment, realizes being connected first steel pipe and second steel pipe, compares in traditional connected mode, and this connected mode installation is dismantled comparatively conveniently.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a colliery is compound steel pipe of epoxy coating for pit, includes first steel pipe, second steel pipe and sleeve pipe, set up the logical groove that two symmetries set up on the sheathed tube lateral wall, two it all is provided with the fixed establishment who goes on fixing to first steel pipe and second steel pipe to lead to the inslot, fixed establishment includes two sliders of sliding connection at leading to the inslot, two the lower extreme of slider all sets up flutedly, two equal sliding connection has trapezoidal piece in the recess, through two spring elastic connection between the inner wall of trapezoidal piece and recess, four fixed blocks of fixedly connected with, four on the sheathed tube lateral wall the fixed block is the rectangle and distributes.

Preferably, connecting discs are fixedly sleeved on the first steel pipe and the second steel pipe, and the connecting discs are matched with the sleeve.

Preferably, two fixed blocks on the same side are connected with a double-threaded rod in a co-rotating manner, and the double-threaded rod penetrates through the two sliding blocks and is in threaded connection with the two sliding blocks.

Preferably, one end of the double-end threaded rod penetrates through one of the fixing blocks and is fixedly connected with the first handle.

Preferably, a plurality of positioning holes which are circumferentially arranged at equal intervals are formed in the two fixing blocks.

Preferably, a positioning rod is connected to the first handle in a penetrating and sliding mode, the positioning rod is matched with the positioning hole, a second handle is fixedly connected to the end portion of the positioning rod, and the second handle is elastically connected with the first handle through a spring.

Compared with the prior art, the utility model, its beneficial effect does:

1. through setting up fixed establishment, insert the cover intraductal with first steel pipe and second steel pipe, connection pad extrusion trapezoidal piece makes it contract to the recess in, make two connection pad contacts, and two connection pads are located between the slider at both ends, rotate two first handles afterwards and drive the rotation of double threaded rod, make two sliders rather than threaded connection draw close to the centre, drive two trapezoidal pieces and draw close to the centre, two liang of trapezoidal pieces carry out the centre gripping to the connection pad, the realization is connected first steel pipe and second steel pipe, compare in traditional connected mode, it is comparatively convenient that this connected mode installation is dismantled.

2. Through setting up locating lever and locating hole, when rotating first handle, pulling second handle drives the locating lever and removes outside the locating hole, after fixed the completion, loosen the second handle, the locating lever inserts in the locating hole of suitable position under the effect of spring, avoids double-end threaded rod not hard up, leads to the slider to remove, influences fixed effect.

Drawings

FIG. 1 is a schematic structural view of an epoxy resin coated composite steel pipe for underground coal mine according to the present invention;

FIG. 2 is a cross-sectional view of the epoxy resin coated composite steel pipe for underground coal mine provided by the present invention;

fig. 3 is an enlarged view of a structure in fig. 2.

In the figure: the device comprises a first steel pipe 1, a second steel pipe 2, a connecting disc 3, a sleeve 4, a fixing block 5, a sliding block 6, a through groove 7, a double-end threaded rod 8, a trapezoidal block 9, a groove 10, a first handle 11, a positioning hole 12, a second handle 13, a spring 14 and a positioning rod 15.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Referring to fig. 1-3, a compound steel pipe of epoxy resin coating for pit in colliery, including first steel pipe 1, second steel pipe 2 and sleeve pipe 4, set up two logical grooves 7 that the symmetry set up on the lateral wall of sleeve pipe 4, all be provided with the fixed establishment that carries out fixing to first steel pipe 1 and second steel pipe 2 in two logical grooves 7, fixed establishment includes two sliders 6 of sliding connection in logical groove 7, recess 10 is all seted up to the lower extreme of two sliders 6, equal sliding connection has trapezoidal piece 9 in two recesses 10, through two spring 14 elastic connection between the inner wall of trapezoidal piece 9 and recess 10, four fixed blocks 5 of fixedly connected with on the lateral wall of sleeve pipe 4, four fixed blocks 5 are the rectangular distribution, all fixed connection pad 3 that has cup jointed on first steel pipe 1 and the second steel pipe 2, connection pad 3 cooperatees with sleeve pipe 4.

Two fixed blocks 5 on the same side are connected with a double-threaded rod 8 in a rotating mode, the double-threaded rod 8 penetrates through the two sliding blocks 6 and is in threaded connection with the sliding blocks, and one end of the double-threaded rod 8 penetrates through one of the fixed blocks 5 and is fixedly connected with a first handle 11.

A plurality of positioning holes 12 which are circumferentially arranged at equal intervals are formed in each of the two fixing blocks 5, a positioning rod 15 is connected to the first handle 11 in a penetrating and sliding mode, the positioning rod 15 is matched with the positioning holes 12, the end portion of the positioning rod 15 is fixedly connected with a second handle 13, the second handle 13 is elastically connected with the first handle 11 through a spring 14, when the first handle 11 is rotated, the second handle 13 is pulled to drive the positioning rod 15 to move out of the positioning holes 12, after fixing is completed, the second handle 13 is loosened, the positioning rod 15 is inserted into the positioning holes 12 in the proper position under the action of the spring 14, and therefore the situation that the double-threaded rod 8 is loosened is avoided, the sliding block 6 is moved, and the fixing effect is influenced.

When the utility model is used, the first steel pipe 1 and the second steel pipe 2 are inserted into the sleeve 4, the connecting disc 3 extrudes the trapezoidal blocks 9 to enable the trapezoidal blocks to shrink towards the inside of the groove 10, so that the two connecting discs 3 are contacted, the two connecting discs 3 are positioned between the sliders 6 at the two ends, then the two first handles 11 are rotated to drive the double-end threaded rod 8 to rotate, the two sliders 6 in threaded connection with the connecting disc are drawn towards the middle, the two trapezoidal blocks 9 are driven to be drawn towards the middle, the connecting discs 3 are clamped by the two trapezoidal blocks 9, the first steel pipe 1 and the second steel pipe 2 are connected, and compared with the traditional connecting mode, the connecting mode is convenient to install and disassemble;

when the first handle 11 is rotated, the second handle 13 is pulled to drive the positioning rod 15 to move out of the positioning hole 12, after the fixing is completed, the second handle 13 is loosened, the positioning rod 15 is inserted into the positioning hole 12 in a proper position under the action of the spring 14, and the phenomenon that the double-threaded rod 8 is loosened to cause the sliding block 6 to move to influence the fixing effect is avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a colliery is compound steel pipe of epoxy coating for pit, includes first steel pipe (1), second steel pipe (2) and sleeve pipe (4), its characterized in that, set up logical groove (7) that two symmetries set up on the lateral wall of sleeve pipe (4), two all be provided with in leading to groove (7) and carry out the fixed establishment to first steel pipe (1) and second steel pipe (2), fixed establishment includes two slider (6) of sliding connection in leading to groove (7), two recess (10) are all seted up to the lower extreme of slider (6), two equal sliding connection has trapezoidal piece (9) in recess (10), through two spring (14) elastic connection between the inner wall of trapezoidal piece (9) and recess (10), fixedly connected with four fixed block (5) on the lateral wall of sleeve pipe (4), four fixed block (5) are the rectangle and distribute.

2. The epoxy resin coating composite steel pipe for the underground coal mine according to claim 1, wherein the first steel pipe (1) and the second steel pipe (2) are fixedly sleeved with connecting discs (3), and the connecting discs (3) are matched with the sleeve (4).

3. The epoxy resin coated composite steel pipe for the underground coal mine according to claim 2, wherein a double-threaded rod (8) is connected between the two fixing blocks (5) on the same side in a co-rotating manner, and the double-threaded rod (8) penetrates through the two sliding blocks (6) and is in threaded connection with the two sliding blocks.

4. The epoxy resin coated composite steel pipe for the underground coal mine according to claim 3, wherein one end of the double-end threaded rod (8) passes through one of the fixing blocks (5) and is fixedly connected with a first handle (11).

5. The epoxy resin coated composite steel pipe for the underground coal mine according to claim 4, wherein a plurality of positioning holes (12) are formed in each of the two fixing blocks (5) at equal intervals in the circumferential direction.

6. The epoxy resin coating composite steel pipe for the underground coal mine according to claim 5, wherein a positioning rod (15) is connected to the first handle (11) in a penetrating and sliding manner, the positioning rod (15) is matched with the positioning hole (12), a second handle (13) is fixedly connected to the end of the positioning rod (15), and the second handle (13) is elastically connected with the first handle (11) through a spring (14).