Tunnel air duct moving support

Abstract

The invention relates to the field of tunnel construction, in particular to a tunnel air duct moving support which comprises a supporting structure, a frame-shaped structure formed by a bottom plate, a stand column and an adjusting plate, two moving blocks connected to the adjusting plate in a sliding mode, and an adjusting assembly used for adjusting the distance between the two moving blocks and arranged on the adjusting plate. And arc-shaped grooves are formed in the two moving blocks correspondingly, guide grooves are formed in the two moving blocks correspondingly, and two clamping plates are slidably connected into the two guide grooves correspondingly. The distance between the two moving blocks is adjusted through the two-way lead screw, the cooperation design of the arc-shaped grooves and the clamping plates is combined, the supporting requirements of air ducts with different diameters can be flexibly met, the two-way lead screw is used for driving the moving blocks to move symmetrically, the two sections of the air ducts are fixed in a wrapping mode through the two sets of clamping plates, and the clamping effect is good. An arc-shaped included angle formed by the two sides when a traditional single supporting plate is used for supporting is effectively avoided, airflow resistance caused by local bending of the air duct is reduced, and therefore the wind power transmission loss is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to a movable support for a tunnel air duct. Background Art

[0002] An air duct is an important auxiliary facility for cooperating with ventilation equipment to convey fresh air for tunnel construction. The air duct is usually installed at the entrance or key positions of the tunnel to guide air into the tunnel or discharge smoke. The air duct plays an important role in the tunnel ventilation system and can provide uniform, diffused and optimized ventilation effects to ensure the air circulation and quality in the tunnel.

[0003] After retrieval, in the Chinese patent with the publication number CN220929477U, a support for the collapse of an air duct in a highway gas tunnel is disclosed. When the lower support iron frame is placed below the collapsed air duct, the height of the lower support iron frame can be adjusted through a non-sparking adjustment component, so that the arc-shaped support plate can lift the collapsed position of the air duct to make the collapsed section of the air duct become a straight section. At this time, the air duct is no longer bent, and the air loss will be reduced synchronously, and the power consumption of the power supply equipment will be reduced.

[0004] Although the above solution uses a support frame with an arc-shaped support plate to support the air duct, however, the air duct is directly placed on the support plate. The vibration generated when the air flows at high speed in the air duct will cause the air duct to displace, and then the air duct will fall off the support plate. Moreover, when using a single support plate to support the air duct, when the air duct is relatively long at the support part, a large arc angle will be formed on both sides of the support plate, which will cause loss of wind force transmission.

[0005] Therefore, the present invention provides a movable support for a tunnel air duct to solve the above problems. Summary of the Invention

[0006] In view of the above situation, to overcome the defects of the prior art, the present invention provides a movable support for a tunnel air duct to solve the problems that the air duct is directly placed on the support plate, the vibration generated when the air flows at high speed in the air duct will cause the air duct to displace, and then the air duct will fall off the support plate, and when using a single support plate to support the air duct, when the air duct is relatively long at the support part, a large arc angle will be formed on both sides of the support plate, which will cause loss of wind force transmission.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A movable support for a tunnel air duct, comprising:

[0009] A support structure, comprising a frame structure formed by a bottom plate, a column and an adjustment plate.

[0010] Two moving blocks are both slidably connected to the adjusting plate. An adjusting component for adjusting the distance between the two moving blocks is arranged on the adjusting plate. Arc-shaped grooves are formed in both of the two moving blocks, and guiding grooves are formed in both of the two moving blocks. Two clamping plates are slidably connected in both of the two guiding grooves.

[0011] A control component is arranged above the adjusting plate and is used for simultaneously sliding the two groups of clamping plates in the guiding grooves and completing the fixation of the air duct in combination with the arc-shaped grooves.

[0012] A rolling component is arranged on the bottom plate and is used for assisting in supporting the support component to walk on the ground.

[0013] A linkage component is arranged on the support structure and is used for simultaneously opening and closing the limit of the rolling component and the limit of the air duct.

[0014] Preferably, the adjusting component includes two moving grooves formed in the adjusting plate. The bottom ends of the two moving blocks are respectively slidably connected in the two moving grooves. A bidirectional lead screw is rotatably connected to the adjusting plate, and two sections of the bidirectional lead screw are respectively located in the two moving grooves. The two moving blocks are respectively threadedly connected to the two sections of the bidirectional lead screw.

[0015] Preferably, anti-slip grooves are formed on both sides of the inner wall of the moving groove. Anti-slip blocks are fixedly connected to both side surfaces of the moving block, and the anti-slip blocks are slidably connected in the anti-slip grooves.

[0016] Preferably, the control component includes an adjusting groove formed in the moving block, and the adjusting groove is communicated with the guiding groove. A hinge seat is arranged in the adjusting groove. Hinge rods are hinged to both ends of the hinge seat, and the ends of the hinge rods far from the hinge seat are hinged to the clamping plate. A guiding rod is fixedly connected in the guiding groove, and the clamping plate is slidably connected to the guiding rod.

[0017] Preferably, the control component further includes a linkage seat. A first adjusting lead screw is rotatably connected to the linkage seat. A linkage plate is threadedly connected to the first adjusting lead screw. Card slots are formed in both of the two hinge seats. The two ends of the linkage plate are respectively slidably connected in the two card slots. Two guiding rods are fixedly connected to the adjusting plate. The guiding rod is slidably connected to the linkage plate, and the bottom end of the guiding rod is fixedly connected to the adjusting plate.

[0018] Preferably, an elastic layer is fixedly connected to the clamping plate, and a handle is fixedly connected to one side surface of the adjusting plate.

[0019] Preferably, the rolling component includes two groups of support seats fixedly connected to the bottom surface of the bottom plate. A rotating groove is formed in each support seat, and a roller is rotatably connected in each rotating groove.

[0020] Preferably, the linkage assembly includes a through hole formed in the adjusting plate. The bottom end of the linkage seat is slidably connected to the through hole. A connecting shaft is fixedly connected to the bottom end of the linkage seat. The bottom end of the connecting shaft penetrates through the bottom plate and is fixedly connected to a T-shaped block. The connecting shaft is slidably connected to the bottom plate. Limiting blocks are fixedly connected to four corners of the connecting shaft.

[0021] Preferably, the linkage assembly further includes a second adjusting screw rod rotatably connected to the bottom plate. A control plate is fixedly connected to the middle section of the connecting shaft. One end of the control plate is threadedly connected to the second adjusting screw rod.

[0022] Preferably, a deviation prevention rod is fixedly connected to the control plate. One end of the deviation prevention rod is fixedly connected to the bottom plate. An adaptation groove is formed in one side surface of the limiting block close to the roller.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. By adjusting the distance between the two moving blocks through the bidirectional screw rod and combining the coordinated design of the arc-shaped groove and the clamping plate, it can flexibly adapt to the support requirements of air ducts with different diameters. Moreover, by driving the moving blocks to move symmetrically using the bidirectional screw rod, the two groups of clamping plates form a wrapped fixation at both ends of the air duct, effectively avoiding the arc-shaped angles formed on both sides during traditional single pallet support, reducing the air flow resistance caused by local bending of the air duct, and thus significantly reducing the wind power transmission loss.

[0025] 2. By setting the control assembly and the linkage assembly, through the mechanical linkage of the linkage plate, the hinge rod, and the guide rod, the clamping plate can uniformly press and fix the air duct, avoiding the wear of the air duct caused by rigid contact while maintaining stable clamping. When operating the second adjusting screw rod, the linkage assembly can not only release the clamping of the air duct but also synchronously release the roller limit. Using this linkage mechanism greatly simplifies the operation process of moving and fixing the bracket, avoiding the tediousness of the step-by-step operation of traditional equipment. Description of the Drawings

[0026] Figure 1 is a three-dimensional Figure 1 .

[0027] Figure 2 is of the present invention Figure 1 is an enlarged schematic view of the structure at A in the present invention.

[0028] Figure 3 is a three-dimensional Figure 2 .

[0029] Figure 4 is of the present invention Figure 3 is an enlarged schematic view of the structure at B in the present invention.

[0030] Figure 5 is a cross-sectional view of the present invention.

[0031] Figure 6 This is a schematic structural diagram of the rolling component in the present invention.

[0032] Figure 7 This is a top view of the present invention.

[0033] In the figure: 1, bottom plate; 2, column; 3, adjusting plate; 4, support seat; 5, rotating groove; 6, roller; 7, limiting block; 8, moving groove; 9, bidirectional lead screw; 10, moving block; 11, arc groove; 12, adjusting groove; 13, guiding groove; 14, clamping plate; 15, elastic layer; 16, guiding rod; 17, hinge seat; 18, hinge rod; 19, through hole; 20, linkage seat; 21, first adjusting lead screw; 22, linkage plate; 23, clamping groove; 24, guiding rod; 25, handle; 26, anti - detachment groove; 27, anti - detachment block; 28, connecting shaft; 29, control board; 30, second adjusting lead screw; 31, anti - deviation rod; 32, I - shaped block; 33, matching groove. Detailed implementation manners

[0034] Next, each embodiment of the present invention will be described in detail with reference to the Figures 1 to 7 accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0035] A tunnel air duct moving support includes a support structure, two moving blocks 10, a control component, a rolling component, and a linkage component.

[0036] The support structure includes a frame - shaped structure formed by a bottom plate 1, columns 2, and an adjusting plate 3. The two ends of the columns 2 are respectively welded to the bottom plate 1 and the adjusting plate 3, and reinforcing ribs can also be designed on the columns 2 to improve the stability of the frame - shaped structure.

[0037] Both of the two moving blocks 10 are slidably connected to the adjusting plate 3, and an adjusting component for adjusting the distance between the two moving blocks 10 is provided on the adjusting plate 3.

[0038] In this embodiment, the adjusting component includes two moving grooves 8 opened on the adjusting plate 3. The bottom ends of the two moving blocks 10 are respectively slidably connected to the two moving grooves 8. A bidirectional lead screw 9 is rotatably connected to the adjusting plate 3, and the two sections of the bidirectional lead screw 9 are respectively located in the two moving grooves 8. The two moving blocks 10 are respectively threadedly connected to the two sections of the bidirectional lead screw 9.

[0039] The bidirectional lead screw 9 is a rod with opposite threads designed at both ends, and one end of the bidirectional lead screw 9 is located outside the adjusting plate 3. When the bidirectional lead screw 9 is rotated, due to the different threads at both ends of the bidirectional lead screw 9, the two moving blocks 10 will move closer to or away from each other, thereby adjusting the distance between the two moving blocks 10.

[0040] Wherein, anti - detachment grooves 26 are provided on both sides of the inner wall of the moving groove 8. Anti - detachment blocks 27 are fixedly connected to both side surfaces of the moving block 10, and the anti - detachment blocks 27 are slidably connected in the anti - detachment grooves 26. In order to prevent the moving block 10 from having a longitudinal displacement, the stability of the moving block 10 can be improved by driving the anti - detachment blocks 27 to slide in the anti - detachment grooves 26 through the moving block 10.

[0041] Arc - shaped grooves 11 are provided on both moving blocks 10. Guide grooves 13 are provided in both moving blocks 10. Two clamping plates 14 are slidably connected in both guide grooves 13. After placing the air duct on the arc - shaped groove 11, the air duct on the arc - shaped groove 11 can be limited by the clamping plates 14 abutting against the outer wall of the air duct.

[0042] In this embodiment, the control component is arranged above the adjusting plate 3 and is used to simultaneously slide the two groups of clamping plates 14 in the guide grooves 13 and cooperate with the arc - shaped grooves 11 to fix the air duct. The control component includes an adjusting groove 12 provided in the moving block 10, and the adjusting groove 12 is communicated with the guide groove 13. An articulated seat 17 is arranged in the adjusting groove 12. Articulated rods 18 are hinged to both ends of the articulated seat 17, and the end of the articulated rod 18 far from the articulated seat 17 is hinged to the clamping plate 14. A guide rod 16 is fixedly connected in the guide groove 13, and the clamping plate 14 is slidably connected to the guide rod 16.

[0043] When adjusting the two groups of clamping plates 14 simultaneously, the articulated seat 17 can be lifted and lowered in the adjusting groove 12 to make the articulated rod 18 rotate on the articulated seat 17, so that the clamping plate 14 slides on the guide rod 16, thereby adjusting the distance between the two clamping plates 14 and fixing the air duct between the two clamping plates 14.

[0044] Wherein, the control component further includes a linkage seat 20. A first adjusting screw rod 21 is rotatably connected to the linkage seat 20. A linkage plate 22 is threadedly connected to the first adjusting screw rod 21. Card slots 23 are provided on both articulated seats 17. Both ends of the linkage plate 22 are slidably connected in the two card slots 23 respectively. Two guide rods 24 are fixedly connected to the adjusting plate 3. The guide rods 24 are slidably connected to the linkage plate 22, and the bottom ends of the guide rods 24 are fixedly connected to the adjusting plate 3.

[0045] When simultaneously controlling the two articulated seats 17, since the articulated seats 17 can slide on the linkage plate 22 through the card slots 23, the lateral movement of the articulated seats 17 will not affect the control of the linkage plate 22 on the articulated seats 17. After rotating the first adjusting screw rod 21, the linkage plate 22 can be longitudinally moved, so that the linkage plate 22 drives the articulated seats 17 to lift and lower through the card slots 23.

[0046] An elastic layer 15 is fixedly connected to the clamping plate 14. By using the elastic layer 15 to contact the air duct, the air duct is fixed in a soft contact manner, which can absorb the vibration generated by the air duct. One side of the adjusting plate 3 is fixedly connected with a handle 25, and the adjusting plate 3 can be pushed through the handle 25.

[0047] In this embodiment, the rolling assembly is arranged on the bottom plate 1 and is used to assist in supporting the support assembly to walk on the ground. The rolling assembly includes two groups of support seats 4 fixedly connected to the bottom surface of the bottom plate 1. Each support seat 4 is provided with a rotating groove 5, and a roller 6 is rotatably connected in each rotating groove 5.

[0048] By using the roller 6 to rotate in the rotating groove 5, the support seat 4 supports the bottom plate 1, so that when the roller 6 rolls on the ground, it can drive the bottom plate 1 to move, thereby adjusting the support position.

[0049] In this embodiment, the linkage assembly is arranged on the support structure and is used to simultaneously open and close the limit of the rolling assembly and the limit of the air duct. The linkage assembly includes a through hole 19 opened on the adjusting plate 3. The bottom end of the linkage seat 20 is slidably connected in the through hole 19. The bottom end of the linkage seat 20 is fixedly connected with a connecting shaft 28. The bottom end of the connecting shaft 28 penetrates through the bottom plate 1 and is fixedly connected with an I-shaped block 32. The connecting shaft 28 is slidably connected with the bottom plate 1, and limit blocks 7 are fixedly connected to the four corners of the connecting shaft 28.

[0050] By using the connecting shaft 28 to drive the linkage seat 20 and the I-shaped block 32 to move synchronously at the same time, when the linkage seat 20 descends to the initial position, the first adjusting screw rod 21 can drive the linkage plate 22 to move to the initial position. At this time, the clamping plate 14 can fix the air duct, and the linkage seat 20 drives the I-shaped block 32 to also move to the limiting position through the connecting shaft 28. At this time, the limit block 7 abuts against the roller 6 to limit the roller 6 and prevent the support structure from displacing. When the first adjusting screw rod 21 drives the linkage plate 22 to rise to the release position, the clamping plate 14 moves away from the air duct to release the fixation of the air duct, and the limit block 7 also moves away from the roller 6. While releasing the fixation of the air duct, the limit of the bottom plate 1 is released, and the position of the bracket can be adjusted.

[0051] Among them, the linkage assembly further includes a second adjusting screw rod 30 rotatably connected to the bottom plate 1. The middle section of the connecting shaft 28 is fixedly connected with a control plate 29, and one end of the control plate 29 is threadedly connected to the second adjusting screw rod 30.

[0052] When adjusting the connecting shaft 28, the control plate 29 can be moved on the second adjusting screw rod 30 by rotating the second adjusting screw rod 30, thereby adjusting the position of the connecting shaft 28.

[0053] Further, a deviation prevention rod 31 is fixedly connected to the control panel 29, and one end of the deviation prevention rod 31 is fixedly connected to the bottom plate 1. An adaptation groove 33 is formed in a side surface of the limit block 7 close to the roller 6.

[0054] The deviation prevention rod 31 is used to guide the control panel 29 to improve the stability of the control panel 29 during movement. The adaptation groove 33 can completely cover the limit block 7 on the roller 6 to ensure the limiting effect on the roller 6.

[0055] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0056] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A tunnel wind duct mobile bracket, characterized in that: include: The supporting structure comprises a frame structure formed by a base plate (1), a column (2) and an adjustment plate (3); Two moving blocks (10) are both slidably connected to the adjustment plate (3); the adjustment plate (3) is provided with an adjustment component for adjusting the distance between the two moving blocks (10); the two moving blocks (10) are both provided with an arc groove (11); the two moving blocks (10) are both provided with a guide groove (13); and two clamping plates (14) are slidably connected in the two guide grooves (13); A control assembly is arranged above the adjustment plate (3) and is used to simultaneously slide the two groups of clamping plates (14) in the guide groove (13) and to fix the air duct in combination with the arc groove (11); A rolling assembly is arranged on the bottom plate (1) and is used to assist in supporting the supporting assembly to move on the ground; The linkage assembly is arranged on the supporting structure and is used to simultaneously open and close the limit of the rolling assembly and the limit of the wind tube.

2. A tunnel wind tube mobile support according to claim 1, characterized in that: The adjustment component comprises two movable grooves (8) provided on the adjustment plate (3), the bottom ends of the two movable blocks (10) are respectively slidably connected in the two movable grooves (8), a bidirectional screw rod (9) is rotatably connected to the adjustment plate (3), and two sections of the bidirectional screw rod (9) are respectively located in the two movable grooves (8), and the two movable blocks (10) are respectively threadedly connected to the two sections of the bidirectional screw rod (9).

3. A tunnel wind tube mobile support according to claim 2, characterized in that: Anti-slip grooves (26) are provided on both sides of the inner wall of the movable groove (8), and anti-slip blocks (27) are fixedly connected to both side surfaces of the movable block (10), and the anti-slip blocks (27) are slidably connected in the anti-slip grooves (26).

4. The tunnel wind tube mobile support according to claim 1, characterized in that: The control assembly comprises an adjustment slot (12) provided in the moving block (10), and the adjustment slot (12) is communicated with the guide slot (13); a hinge seat (17) is provided in the adjustment slot (12); both ends of the hinge seat (17) are hinged with hinge rods (18), and one end of the hinge rod (18) away from the hinge seat (17) is hinged on the clamping plate (14); a guide rod (16) is fixedly connected in the guide slot (13), and the clamping plate (14) is slidably connected to the guide rod (16).

5. The tunnel wind tube mobile support according to claim 4, characterized in that: The control assembly further comprises a linkage seat (20), a first adjusting screw rod (21) being rotatably connected to the linkage seat (20), a linkage plate (22) being threadedly connected to the first adjusting screw rod (21), a clamping groove (23) being provided on both of the two hinge seats (17), two ends of the linkage plate (22) being slidably connected to the two clamping grooves (23), two guide rods (24) being fixedly connected to the adjustment plate (3), a guide rod (24) being slidably connected to the linkage plate (22), and a bottom end of the guide rod (24) being fixedly connected to the adjustment plate (3).

6. The tunnel wind tube mobile bracket according to claim 1, characterized in that: An elastic layer (15) is fixedly connected to the clamping plate (14), and a handle (25) is fixedly connected to one side of the adjustment plate (3).

7. The tunnel wind tube mobile support according to claim 1, characterized in that: The rolling assembly comprises two groups of support seats (4) fixedly connected to the bottom surface of the base plate (1), each of the support seats (4) is provided with a rotation groove (5), and each of the rotation grooves (5) is rotatably connected with a roller (6).

8. The tunnel wind tube mobile support according to claim 7, characterized in that: The linkage assembly comprises a through hole (19) provided on the adjustment plate (3); the bottom end of the linkage seat (20) is slidably connected in the through hole (19); the bottom end of the linkage seat (20) is fixedly connected to a connecting shaft (28); the bottom end of the connecting shaft (28) passes through the bottom plate (1) and is fixedly connected to an I-shaped block (32); the connecting shaft (28) is slidably connected to the bottom plate (1); and the four corners of the connecting shaft (28) are fixedly connected to limit blocks (7).

9. The tunnel wind tube mobile support according to claim 8, characterized in that: The linkage assembly also includes a second adjusting screw (30) rotatably connected to the base plate (1); a control plate (29) is fixedly connected to the middle section of the connecting shaft (28), and one end of the control plate (29) is threadedly connected to the second adjusting screw (30).

10. The tunnel wind tube mobile support according to claim 9, characterized in that: An anti-deflection rod (31) is fixedly connected to the control panel (29), and one end of the anti-deflection rod (31) is fixedly connected to the bottom plate (1). An adaption groove (33) is provided on a side of the limit block (7) close to the roller (6).

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