CN216642166U - Door type fore support - Google Patents

Abstract

The utility model discloses a door type forepoling which comprises a first upright post, a second upright post, a top beam, a first supporting seat and a second supporting seat, wherein the first upright post and the second upright post are arranged at intervals along the left-right direction; the top beam extends along the left-right direction, one end of the top beam is arranged on the first upright post, and the other end of the top beam is arranged on the second upright post; the first supporting seat the second supporting seat with the third supporting seat sets up along left right direction interval on the back timber, first supporting seat the second supporting seat with the third supporting seat is linked together, first supporting seat the second supporting seat with each in the third supporting seat is used for supporting the roof in tunnel. The portal type advance support has the advantages of low risk of damage or instability in roadway supporting operation and the like.

Description

Door type fore support

Technical Field

The utility model relates to the technical field of coal mine roadway support, in particular to a portal type advance support.

Background

The forepoling of the fully mechanized mining face is an important guarantee of roadway safety, and along with the increase of complexity of mining conditions, the requirement on the adaptability of the portal forepoling is continuously improved. The portal type advance support has the advantage of no repeated support and is rapidly developed in roadway support operation. The portal type advance support in the related art has the problems of poor roof connecting effect, easy damage or instability.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least in part, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides a portal type advance support to reduce the risk of damage or instability of the portal type advance support during roadway supporting operation.

The door type advance support comprises a first upright post, a second upright post, a top beam, a first supporting seat and a second supporting seat, wherein the first upright post and the second upright post are arranged at intervals along the left-right direction; the top beam extends along the left and right direction, one end of the top beam is provided with a first fixed seat, the other end of the top beam is provided with a second fixed seat, the first fixed seat is connected with the first upright post, and the second fixed seat is connected with the second upright post; the first supporting seat with the second supporting seat sets up along left right direction interval on the back timber, first supporting seat with each in the second supporting seat is used for supporting the roof in tunnel.

The portal type advance support has the advantages of good roof connecting effect during roadway supporting operation, low risk of damage or instability and the like.

In some embodiments, the first support seat includes a first seat body and a first hydraulic cylinder, the first seat body is configured to support a top plate of the roadway, the first hydraulic cylinder is disposed at a lower side of the first seat body, the first hydraulic cylinder includes a first cylinder body and a first piston rod, one of the first cylinder body and the first piston rod is connected to the top beam, and the other of the first cylinder body and the first piston rod is connected to the first seat body; the second supporting seat comprises a second seat body and a second hydraulic cylinder, the second seat body is used for supporting a top plate of the roadway, the second hydraulic cylinder is arranged on the lower side of the second seat body and comprises a second cylinder body and a second piston rod, one of the second cylinder body and the second piston rod is connected with the top beam, and the other of the second cylinder body and the second piston rod is connected with the second seat body.

In some embodiments, further comprising a first passage and a second passage, the first passage communicating with the first cylinder to inject hydraulic oil to the first cylinder; the second passage is communicated with the second cylinder body so as to inject hydraulic oil into the second cylinder body; wherein the first channel and the second channel are in communication.

In some embodiments, the supporting device further comprises a third supporting seat, the third supporting seat is located between the first supporting seat and the second supporting seat in the left-right direction, the first supporting seat, the second supporting seat and the third supporting seat are arranged at intervals in the left-right direction, the third supporting seat comprises a third seat body and a third hydraulic cylinder, and the third seat body is used for supporting a top plate of the roadway; the third hydraulic cylinder is arranged on the lower side of the third seat body and comprises a third cylinder body and a third piston rod, one of the third cylinder body and the third piston rod is connected with the top beam, and the other of the third cylinder body and the third piston rod is connected with the third seat body; wherein the third cylinder is in communication with each of the first and second passages.

In some embodiments, the length of the top beam in the left-right direction is adjustable to adjust the distance between the first upright and the second upright in the left-right direction.

In some embodiments, the top beam includes a fixed section, a first telescoping section, and a second telescoping section, the fixed section extending in a left-right direction; the fixed section is positioned between the first telescopic section and the second telescopic section in the left-right direction, and each of the first telescopic section and the second telescopic section is movably connected with the fixed section in the left-right direction so as to adjust the length of the top beam in the left-right direction; the first telescopic section is connected with the first stand column, the first supporting seat is arranged on the first telescopic section, the second telescopic section is connected with the second stand column, and the second supporting seat is arranged on the second telescopic section.

In some embodiments, the hydraulic device further comprises a fourth hydraulic cylinder and a fifth hydraulic cylinder, the fourth hydraulic cylinder comprises a fourth cylinder and a fourth piston rod, one of the fourth cylinder and the fourth piston rod is connected with the fixed section, and the other of the fourth cylinder and the fourth piston rod is connected with the first telescopic section, so that the fourth hydraulic cylinder drives the first telescopic section to move along the left-right direction; the fifth hydraulic cylinder comprises a fifth cylinder body and a fifth piston rod, one of the fifth cylinder body and the fifth piston rod is connected with the fixed section, and the other of the fifth cylinder body and the fifth piston rod is connected with the second telescopic section, so that the fifth hydraulic cylinder drives the second telescopic section to move along the left-right direction.

In some embodiments, the fixed section is a fixed cylinder, at least a portion of the first telescopic section is inserted into the fixed cylinder, at least a portion of the second telescopic section is inserted into the fixed cylinder, and at least a portion of the fourth hydraulic cylinder and at least a portion of the fifth hydraulic cylinder are arranged in the fixed cylinder; the first telescopic section is a first telescopic cylinder, and at least one part of the fourth hydraulic cylinder is arranged in the first telescopic cylinder; the second telescopic section is a second telescopic cylinder, and at least one part of the fifth hydraulic cylinder is arranged in the second telescopic cylinder.

In some embodiments, the first column and the second column are impact resistant columns, the door-type advance support further comprises a first pressure sensor, a second pressure sensor and an inclination angle sensor, and the first pressure sensor is arranged on the first column and used for monitoring the pressure of the emulsion in the first column; the second pressure sensor is arranged on the second upright column and used for monitoring the pressure of the emulsion in the second upright column; the tilt angle sensor is arranged on the top beam so as to monitor the tilt angle of the top beam.

In some embodiments, a camera is further included, the camera being provided on the roof rail to monitor a roof of the roadway.

Drawings

Fig. 1 is a usage state diagram of a portal type advance support according to an embodiment of the utility model.

Fig. 2 is a schematic structural view of a junction between the fixed section and the second telescopic section in fig. 1.

Reference numerals:

a portal type advance support 100;

a first upright 1;

a second upright 2;

a top beam 3; a fixed segment 301; a first telescoping section 302; a first fixed seat 3021; a second telescoping section 303; a second fixed seat 3031;

a first support 4; a first base 401; a first hydraulic cylinder 402; a first cylinder 4021;

a second support base 5; a second seat 501; a second hydraulic cylinder 502; the second cylinder 5021;

a third support seat 6; a third seat 601; a third hydraulic cylinder 602; the third cylinder 6021;

a fifth hydraulic cylinder 7; a fifth cylinder 701; a fifth piston rod 702;

a first pressure sensor 8;

a second pressure sensor 9;

a tilt sensor 10;

a camera 11;

a first channel 12;

a second channel 13;

a third fixing block 14; a fourth fixing block 15; a fifth pin 16; a sixth pin 17; a seventh pin 18; an eighth pin 19;

a roadway 200;

a top plate 20;

a bottom plate 30.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 and 2, a door type advance support 100 according to an embodiment of the present invention includes a first upright 1, a second upright 2, a top beam 3, a first support seat 4, and a second support seat 5. The first upright column 1 and the second upright column 2 are arranged at intervals along the left-right direction. The top beam 3 extends along the left-right direction, one end of the top beam 3 is arranged on the first upright post 1, and the other end of the top beam 3 is arranged on the second upright post 2. The first support seat 4 and the second support seat 5 are provided on the head beam 3 at an interval in the left-right direction, and each of the first support seat 4 and the second support seat 5 is used for supporting the roof 20 of the roadway 200.

Wherein the left-right direction and the up-down direction are as shown in fig. 1. For example, the first upright 1 is arranged on the left side of the second upright 2, the left end of the top beam 3 is arranged on the first upright 1, and the right end of the top beam 3 is arranged on the second upright 2.

The door-type forepoling among the correlation technique directly utilizes the roof that the back timber supported the tunnel, and when the roof surface convex-concave in tunnel was uneven, the back timber easily with roof local contact, lead to back timber local stress too big, door-type forepoling connects a top effect poor, causes the problem of door-type forepoling unstability even damage easily.

When the portal type advance support 100 of the embodiment of the utility model performs roadway support operation, the first upright post 1 and the second upright post 2 are used for supporting the top beam 3 at a position close to the top plate 20 of the roadway 200, and the first support seat 4 and the second support seat 5 arranged on the top beam 3 are used for supporting the top plate 20 of the roadway 200, so that the support effect on the top plate 20 of the roadway 200 is realized.

That is, the only thing that the door-type advance bracket 100 finally contacts with the roof panel 20 of the tunnel 200 is the first support seat 4 and the second support seat 5, not the entire roof rail 3. When the surface of the top plate 20 of the tunnel 200 is uneven, the first support seat 4 and the second support seat 5 are arranged at intervals in the left-right direction, and the unevenness of the top plate 20 can be avoided by the interval between the first support seat 4 and the second support seat 5, so that the top plate 20 can be better supported by the portal type advance support 100. For example, only two places of the same height of the first supporting seat 4 and the second supporting seat 5 with the top plate 20 need to be respectively corresponding and contacted, so that the first supporting seat 4 and the second supporting seat 5 can be ensured to play a supporting role for the top plate 20 of the tunnel 200. In the related art, the scheme that the whole top beam supports the top plate is utilized, when only one position in the top plate is low in height and other positions are high in height, the top beam can only contact with the low position of the top plate, and therefore local stress of the top beam is overlarge. Therefore, compared with the door-type advance support in the related art, the door-type advance support 100 of the embodiment of the utility model can better adapt to the condition that the surface of the top plate is uneven, improve the roof-contacting effect of the door-type advance support, and reduce the risks of instability and damage of the door-type advance support.

It will be understood by those skilled in the art that the above-mentioned lower height and higher height means that the height of the top plate 20 is considered to be lower when the distance between the top plate 20 and the bottom plate 30 is shorter, and the height of the top plate 20 is considered to be higher when the distance between the top plate 20 and the bottom plate 30 is longer, based on the plane of the bottom plate 30 of the roadway.

Therefore, the portal advance support 100 of the embodiment of the utility model has the advantages of good roof contact effect during roadway supporting operation, low risk of damage or instability and the like.

Optionally, first upright 1 and second upright 2 are impact resistant uprights.

The door-type advance support in the related art has the defect of poor stability, and is very easy to destabilize and damage under the action of dynamic load and impact.

The first upright column 1 and the second upright column 2 of the door-type advance support 100 in the embodiment of the utility model adopt anti-impact upright columns, and the anti-impact upright columns have a buffering yielding function to resist impact pressure, so that the self stability of the door-type advance support 100 can be improved, and the stability of the door-type advance support 100 under dynamic load and impact action is improved.

The portal advance support 100 of the embodiment of the present invention further includes a first pressure sensor 8, a second pressure sensor 9, and an inclination sensor 10. The first pressure sensor 8 is arranged on the first upright post 1 and used for monitoring the pressure of the emulsion in the first upright post 1; the second pressure sensor 9 is arranged on the second upright post 2 and is used for monitoring the pressure of the emulsion in the second upright post 2; a tilt sensor 10 is provided on the roof rail 3 for monitoring the tilt angle of the roof rail 3.

In the use process of the door-type advance support 100 of the embodiment of the utility model, the first pressure sensor 8 can be used for monitoring the pressure of the emulsion in the first upright post 1, so as to monitor the pressure of the first upright post 1 from the top plate 20; monitoring the pressure of the emulsion in the second column 2 by means of a second pressure sensor 9, thereby monitoring the pressure to which the second column is subjected from the top plate 20; the tilt angle of the roof beam 3 is monitored by means of a tilt sensor 10. Therefore, whether the portal advance support 100 is unstable or decompressed can be judged by combining the data monitored by the first pressure sensor 8, the second pressure sensor 9 and the tilt angle sensor 10.

Optionally, the door-type advance support 100 according to the embodiment of the present invention includes an alarm and a controller, the first pressure sensor 8, the second pressure sensor 9, the tilt sensor 10 and the alarm are all connected to the controller, and when a value monitored by the first pressure sensor 8 is greater than or equal to a first preset value, or a value monitored by the second pressure sensor 9 is greater than or equal to a second preset value, or a value monitored by the tilt sensor 10 is greater than or equal to a third preset value, the controller is used to control the alarm to alarm.

Therefore, the first pressure sensor 8, the second pressure sensor 9, the tilt sensor 10 and the alarm are used to form a state monitoring and early warning system of the portal advance support 100, so as to prevent the portal advance support 100 from being unstable or losing pressure.

Optionally, the portal type advance support 100 of the embodiment of the present invention further includes a camera 11, and the camera 11 is provided on the top beam 3 so as to monitor the roof panel 20 of the roadway 200.

For example, when the portal type advance support 100 is used for roadway support, the positions of the anchor rods and the anchor cables on the top plate 20 can be observed through the camera 11, so that the first support seat 4 and the second support seat 5 are prevented from being pressed against the anchor rods or the anchor cables, and the support stability of the portal type advance support 100 on the top plate 20 is improved.

In some embodiments, the portal type advance support 100 of the embodiment of the present invention further includes a third support seat 6, the third support seat 6 is disposed on the top beam 3, the third support seat 6 is used for supporting the top plate 20 of the roadway 200, the third support seat 6 is located between the first support seat 4 and the second support seat 5 in the left-right direction, and the first support seat 4, the second support seat 5, and the third support seat 6 are disposed at intervals in the left-right direction.

Therefore, the gate-type advance support 100 according to the embodiment of the present invention can support the top plate 20 of the roadway 200 by using the first support seat 4, the second support seat 5, and the third support seat 6 together, so as to increase the support area of the gate-type advance support 100 and the top plate 20 of the roadway 200, and to further improve the support stability of the gate-type advance support 100 to the top plate 20.

Of course, the number of the third supporting seats can be one, two, three or more than four according to the requirement.

In some embodiments, the first support seat 4 includes a first seat body 401 and a first hydraulic cylinder 402, and the first seat body 401 is used for supporting the top plate 20 of the tunnel 200. The first hydraulic cylinder 402 is arranged at the lower side of the first seat 401, the first hydraulic cylinder 402 comprises a first cylinder 4021 and a first piston rod, one of the first cylinder 4021 and the first piston rod is connected to the top beam 3, and the other of the first cylinder 4021 and the first piston rod is connected to the first seat 401.

The second support base 5 includes a second base 501 and a second hydraulic cylinder 502, and the second base 501 is used for supporting the top plate 20 of the tunnel 200. The second hydraulic cylinder 502 is disposed at a lower side of the second seat 501, the second hydraulic cylinder 502 includes a second cylinder 5021 and a second piston rod, one of the second cylinder 5021 and the second piston rod is connected to the top beam 3, and the other of the second cylinder 5021 and the second piston rod is connected to the second seat 501.

The third supporting seat 6 includes a third seat body 601 and a third hydraulic cylinder 602, and the third seat body 601 is used for supporting the top plate 20 of the tunnel 200. The third hydraulic cylinder 602 is arranged at the lower side of the third seat 601, the third hydraulic cylinder 602 comprises a third cylinder 6021 and a third piston rod, one of the third cylinder 6021 and the third piston rod is connected with the top beam 3, and the other of the third cylinder 6021 and the third piston rod is connected with the third seat 601.

For example, as shown in fig. 1, a first hydraulic cylinder 402 is disposed on the top beam 3, a first seat 401 is disposed on the first hydraulic cylinder 402, a first cylinder 4021 is connected to the top beam 3, and a first piston rod is connected to the first seat 401. The second hydraulic cylinder 502 is disposed on the top beam 3, the second seat 501 is disposed on the second hydraulic cylinder 502, the second cylinder 5021 is connected with the top beam 3, and the second piston rod is connected with the second seat 501. The third hydraulic cylinder 602 is arranged on the top beam 3, the third seat 601 is arranged on the third hydraulic cylinder 602, the third cylinder 6021 is connected with the top beam 3, and the third piston rod is connected with the third seat 601.

Therefore, when the gate-type advance support 100 of the embodiment of the present invention performs roadway supporting operation, the first hydraulic cylinder 402 is used to support the first seat body 401, and the first seat body 401 is used to support the top plate 20; the second seat body 501 is supported by the third hydraulic cylinder 502, and the top plate 20 is supported by the second seat body 501; the third base 601 is supported by the third hydraulic cylinder 601, and the top plate 20 is supported by the third base 601. The supporting strength of the first supporting seat 4, the second supporting seat 5 and the third supporting seat 6 is good, and the supporting stability of the door-type advance support 100 to the top plate 20 is improved.

Optionally, the portal type advance support 100 of the embodiment of the utility model further includes a first passage 12 and a second passage 13, the first passage 12 communicates with the first cylinder 4021 to inject hydraulic oil into the first cylinder 4021, and the second passage 13 communicates with the second cylinder 5021 to inject hydraulic oil into the second cylinder 5021. Wherein the first passage 12 and the second passage 13 communicate, and the third cylinder 6021 communicates with each of the first passage 12 and the second passage 13.

For example, as shown in fig. 1, one end of a first passage 12 communicates with a first cylinder 4021, the other end of the first passage 12 communicates with a third cylinder 6021, one end of a second passage 13 communicates with a second cylinder 5021, and the other end of the second passage 13 communicates with the third cylinder 6021, so that the first cylinder 4021, the second cylinder 5021, and the third cylinder 6021 all communicate with one another to form a communicator.

When the surface of the top plate 20 of the roadway 200 is uneven, when the top plate 20 is supported by the first support seat 4, the second support seat 5 and the third support seat 6, hydraulic oil in the first cylinder 4021, the second cylinder 5021 and the third cylinder 6021 can flow according to the difference in pressure applied to the first support seat 4, the second support seat 5 and the third support seat 6, so that the first support seat 4, the second support seat 5 and the third support seat 6 adapt to the uneven top plate 20, and the first support seat 4, the second support seat 5 and the third support seat 6 all contact with the top plate 20 and support the top plate 20.

For example, when the height at the top plate 20 corresponding to the first support seat 4 is low, and the height at the top plate 20 corresponding to the second support seat 5 and the third support seat 6 is high. In the initial stage, the pressure from the top plate 20 to which the first seat 401 is subjected is greater than the pressure from the top plate 20 to which the second seat 501 and the third seat 601 are subjected; this pressure is transmitted to the hydraulic oil in the first cylinder 4021, so that the hydraulic oil in the first cylinder 4021 flows into the second cylinder 5021 and the third cylinder 6021; the hydraulic oil flowing into the second cylinder 5021 pushes the second seat 501 to rise, the hydraulic oil flowing into the third cylinder 6021 pushes the third seat 601 to rise, and the first seat 401 is lowered due to the reduction of the hydraulic oil in the first cylinder 4021; finally, the first seat body 401, the second seat body 501 and the third seat body 601 are all contacted with the top board 20, and the pressure applied to the first seat body 401, the second seat body 501 and the third seat body 601 from the top board 20 is equivalent.

This is advantageous in further improving the stability of the door type leading support 100 in supporting the top plate 20.

In some embodiments, the length of the top beam 3 in the left-right direction is adjustable so as to adjust the distance between the first upright 1 and the second upright 2 in the left-right direction.

The back timber formula structure as an organic whole of gate-type forepoling among the correlation technique, length can not be adjusted for gate-type forepoling can only be used for setting for the strutting in the tunnel of width, and takes place the back that warp in the tunnel, for example, the both sides group shrink back in tunnel, leads to the unable normal antedisplacement of gate-type forepoling.

The length of the top beam 3 of the door-type advance support 100 is adjustable, on one hand, the distance between the first upright post 1 and the second upright post 2 in the left-right direction is different, so that the door-type advance support 100 can be used for supporting tunnels with different widths, and the tunnel adaptability of the door-type advance support 100 is improved; on the other hand, after the roadway is deformed, the length of the top beam 3 can be adjusted to enable the door-type advance support 100 to move forwards normally.

Optionally, the top beam 3 comprises a fixed section 301, a first telescopic section 302 and a second telescopic section 303, the fixed section 301 extending in the left-right direction. The fixed section 301 is located between the first telescopic section 302 and the second telescopic section 303 in the left-right direction, and each of the first telescopic section 302 and the second telescopic section 303 is movably connected to the fixed section 301 in the left-right direction so as to adjust the length of the roof rail 3 in the left-right direction. Wherein, first flexible section 302 links to each other with first stand 1, and first supporting seat 4 is established on first flexible section 302, and second flexible section 303 links to each other with second stand 2, and second supporting seat 5 is established on second flexible section 303.

For example, as shown in FIG. 1, first telescoping section 302 is positioned to the left of second telescoping section 303. The left end of the first telescopic section 302 is provided with a first fixed seat 3021, and the first fixed seat 3021 is connected with the first upright post 1 through a pin shaft. The right end of the second telescopic section 303 is provided with a second fixed seat 3031, and the second fixed seat 3031 is connected with the second upright post 2 through a pin shaft. The first supporting seat 4 is arranged corresponding to the first upright post 1, and the second supporting seat 5 is arranged corresponding to the second upright post 2.

When the length of the top beam 3 needs to be adjusted, the length adjustment of the top beam 3 can be achieved by moving either one of the first telescopic section 302 and the second telescopic section 303 in the left-right direction.

Optionally, first telescoping section 302 and second telescoping section 303 are symmetrically disposed about fixed section 301.

Optionally, a third support seat 6 is provided on the fixed segment 301.

The gate-type advance support 100 of the embodiment of the present invention further includes a fourth hydraulic cylinder and a fifth hydraulic cylinder 7, the fourth hydraulic cylinder includes a fourth cylinder body and a fourth piston rod, one of the fourth cylinder body and the fourth piston rod is connected to the fixed section 301, and the other of the fourth cylinder body and the fourth piston rod is connected to the first telescopic section 302, so that the fourth hydraulic cylinder drives the first telescopic section 302 to move in the left-right direction.

The fifth hydraulic cylinder 7 includes a fifth cylinder 701 and a fifth piston rod 702, one of the fifth cylinder 701 and the fifth piston rod 702 is connected to the fixed section 301, and the other of the fifth cylinder 701 and the fifth piston rod 702 is connected to the second telescopic section 303, so that the fifth hydraulic cylinder 7 drives the first telescopic section to move in the left-right direction.

For example, the fourth cylinder is connected to the fixed section 301, the fourth piston rod is connected to the first telescopic section 302, and the fourth hydraulic cylinder drives the first telescopic section 302 to move in the left-right direction; as shown in fig. 1 and 2, the fifth cylinder 701 is connected to the fixed section 301, the fifth piston rod 702 is connected to the second telescopic section 303, and the fifth hydraulic cylinder 7 drives the second telescopic section 303 to move in the left-right direction.

Thereby, the length adjustment of the top beam 3 is facilitated by means of the fourth hydraulic cylinder and the fifth hydraulic cylinder 7.

Optionally, the fixed section 301 is a fixed cylinder, at least a part of the first telescopic section 302 is inserted into the fixed cylinder, at least a part of the second telescopic section 303 is inserted into the fixed cylinder, and at least a part of the fourth hydraulic cylinder and at least a part of the fifth hydraulic cylinder 7 are arranged in the fixed cylinder. The first telescoping section 302 is a first telescoping cylinder, and at least a portion of the fourth hydraulic cylinder is disposed within the first telescoping cylinder. The second telescopic section 303 is a second telescopic cylinder, and at least a part of the fifth hydraulic cylinder 7 is arranged in the second telescopic cylinder.

For example, as shown in fig. 1 and 2, the fixed section 301 includes a left portion, a middle portion, and a right portion arranged in this order from left to right, a part of the fourth cylinder of the fourth hydraulic cylinder is located in the left portion, the fifth cylinder 701 of the fifth hydraulic cylinder 7 is located in the right portion, at least a part of the first telescopic section 302 is inserted in the left portion, and at least a part of the second telescopic section 303 is inserted in the right portion. A portion of a fourth piston rod is located within first telescoping section 302 and a portion of a fifth piston rod 702 is located within second telescoping section 303.

Therefore, on one hand, when the first telescopic section 302 and the second telescopic section 303 move along the left-right direction, at least one part of the first telescopic section 302 is inserted into the left side part, and at least one part of the second telescopic section 303 is inserted into the right side part, so that the fixed section 301 can be used for guiding the movement of the first telescopic section 302 and the second telescopic section 303, the first telescopic section 302 and the second telescopic section 303 are ensured to move along a set path, and the reliability of the portal type advance support 100 is improved; on the other hand, the fourth hydraulic cylinder and the fifth hydraulic cylinder 7 are both arranged inside the top beam 3, which is beneficial to simplifying the external structure of the door-type advance support 100.

Optionally, the door-type advance bracket 100 according to the embodiment of the present invention further includes a first fixed block, a second fixed block, a first pin, a second pin, a third pin, and a fourth pin. The fourth cylinder body is connected with the first fixed block through a first pin shaft, and the first fixed block is connected with the fixed section 301 through a second pin shaft; the fourth piston rod is connected with the second fixed block through a third pin shaft, and the second fixed block is connected with the first telescopic section 301 through a fourth pin shaft.

As shown in fig. 1 and 2, the door-type advance bracket 100 according to the embodiment of the present invention further includes a third fixing block 14, a fourth fixing block 15, a fifth pin 16, a sixth pin 17, a seventh pin 18, and an eighth pin 19. The fifth cylinder 701 is connected with a third fixed block 14 through a fifth pin 16, and the third fixed block 14 is connected with the fixed section 301 through a sixth pin 17; the fifth piston rod 702 is connected to the fourth fixed block 15 through the seventh pin 18, and the fourth fixed block 15 is connected to the second telescopic section 303 through the eighth pin 19.

When the fourth hydraulic cylinder is connected with the top beam 3, the fourth cylinder body is connected with the first fixed block through a first pin shaft, and meanwhile, a fourth piston rod is connected with the second fixed block through a third pin shaft; then, the first fixed block is connected with the fixed section 301 through a second pin, and the second fixed block is connected with the first telescopic section 301 through a fourth pin.

When the fifth hydraulic cylinder 7 is connected with the top beam 3, the fifth cylinder body 701 is connected with the third fixed block 14 through the fifth pin 16, and the fifth piston rod 702 is connected with the fourth fixed block 15 through the seventh pin 18; thereafter, the third fixed block 14 is connected to the fixed section 301 by a sixth pin 17, and the fourth fixed block 15 is connected to the second telescopic section 303 by an eighth pin 19.

Thereby, it is facilitated to mount the fourth and fifth hydraulic cylinders 7 on the roof rail 3.

The portal type advance support 100 of the embodiment of the utility model can adapt to the deformation of two sides of the roadway 200 and the top plate 20 by utilizing the adjustable length of the top beam 3, and has the characteristic of good adaptability; the hydraulic cylinder is mounted on the top beam 3 by utilizing the fixed block and the pin shaft, and the hydraulic cylinder has the characteristics of convenient mounting mode and easiness in assembly and disassembly; the working state of the portal advance support 100 is monitored in real time by utilizing the first pressure sensor 8, the second pressure sensor 9 and the inclination angle sensor 10, so that the portal advance support 100 has a perfect monitoring system, the reliable working state is ensured, and the automatic operation is easy; first stand 1 and second stand 2 adopt the stand of shocking resistance for gate-type leading support 100 has the buffering and lets presses the effect, can be better support to shock resistance and come to press.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A portal advance support, comprising:

the first upright post and the second upright post are arranged at intervals along the left-right direction;

the top beam extends along the left and right direction, one end of the top beam is provided with a first fixed seat, the other end of the top beam is provided with a second fixed seat, the first fixed seat is connected with the first upright post, and the second fixed seat is connected with the second upright post; and

first supporting seat and second supporting seat, first supporting seat with the second supporting seat sets up along left right direction interval on the back timber, first supporting seat with each in the second supporting seat is used for supporting the roof in tunnel.

2. The door-type advance support of claim 1, wherein the first support base comprises:

a first seat for supporting a roof of the roadway, an

The first hydraulic cylinder is arranged on the lower side of the first seat body and comprises a first cylinder body and a first piston rod, one of the first cylinder body and the first piston rod is connected with the top beam, and the other of the first cylinder body and the first piston rod is connected with the first seat body;

the second supporting seat comprises:

a second seat for supporting a roof of the roadway, an

The second hydraulic cylinder is arranged on the lower side of the second seat body and comprises a second cylinder body and a second piston rod, one of the second cylinder body and the second piston rod is connected with the top beam, and the other of the second cylinder body and the second piston rod is connected with the second seat body.

3. The door-type advance support of claim 2, further comprising:

a first passage that communicates with the first cylinder block so as to inject hydraulic oil into the first cylinder block; and

a second passage that communicates with the second cylinder body so as to inject hydraulic oil into the second cylinder body;

wherein the first channel and the second channel are in communication.

4. The door-type leading support according to claim 3, further comprising a third support seat, the third support seat being located between the first support seat and the second support seat in the left-right direction, the first support seat, the second support seat and the third support seat being spaced apart in the left-right direction, the third support seat comprising:

the third seat body is used for supporting a top plate of the roadway; and

the third hydraulic cylinder is arranged on the lower side of the third seat body and comprises a third cylinder body and a third piston rod, one of the third cylinder body and the third piston rod is connected with the top beam, and the other of the third cylinder body and the third piston rod is connected with the third seat body;

wherein the third cylinder is in communication with each of the first and second passages.

5. The door type advance support according to any one of claims 1 to 4, wherein the length of the top beam in the left-right direction is adjustable so as to adjust the distance between the first pillar and the second pillar in the left-right direction.

6. The door-type advance support of claim 5, wherein the top beam comprises:

a fixed section extending in a left-right direction;

the fixed section is positioned between the first telescopic section and the second telescopic section in the left-right direction, and each of the first telescopic section and the second telescopic section is movably connected with the fixed section in the left-right direction so as to adjust the length of the top beam in the left-right direction;

the first telescopic section is connected with the first stand column, the first supporting seat is arranged on the first telescopic section, the second telescopic section is connected with the second stand column, and the second supporting seat is arranged on the second telescopic section.

7. The door-type advance support of claim 6, further comprising:

the fourth hydraulic cylinder comprises a fourth cylinder body and a fourth piston rod, one of the fourth cylinder body and the fourth piston rod is connected with the fixed section, and the other of the fourth cylinder body and the fourth piston rod is connected with the first telescopic section, so that the fourth hydraulic cylinder drives the first telescopic section to move along the left-right direction; and

and the fifth hydraulic cylinder comprises a fifth cylinder body and a fifth piston rod, one of the fifth cylinder body and the fifth piston rod is connected with the fixed section, and the other of the fifth cylinder body and the fifth piston rod is connected with the second telescopic section, so that the fifth hydraulic cylinder drives the second telescopic section to move along the left-right direction.

8. The door-type advance support of claim 7, wherein the fixed section is a fixed cylinder, at least a portion of the first telescopic section is inserted into the fixed cylinder, at least a portion of the second telescopic section is inserted into the fixed cylinder, and at least a portion of the fourth hydraulic cylinder and at least a portion of the fifth hydraulic cylinder are disposed in the fixed cylinder;

the first telescopic section is a first telescopic cylinder, and at least one part of the fourth hydraulic cylinder is arranged in the first telescopic cylinder;

the second telescopic section is a second telescopic cylinder, and at least one part of the fifth hydraulic cylinder is arranged in the second telescopic cylinder.

9. The door-type advance support of any one of claims 1-4, wherein the first and second columns are impact resistant columns, the door-type advance support further comprising:

the first pressure sensor is arranged on the first upright column and used for monitoring the pressure of the emulsion in the first upright column;

the second pressure sensor is arranged on the second upright column and used for monitoring the pressure of the emulsion in the second upright column; and

an inclination sensor disposed on the top beam to monitor an inclination angle of the top beam.

10. The door-type advance support according to any one of claims 1 to 4, further comprising a camera provided on the top beam for monitoring a roof of the roadway.

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