Hole opening heat preservation device for tunnel construction

Abstract

The utility model discloses a tunnel opening heat preservation device for tunnel construction, which comprises a positioning door seat, a heat preservation moving door assembly, a supporting and blocking assembly, a lifting assembly and control switches, the control switches are fixedly installed on the left sides of the front face and the back face of the positioning door seat, and the lifting assembly is arranged at the center of the top of the positioning door seat. The supporting and blocking assembly is arranged on the surface of the lifting assembly, the heat preservation moving door assemblies are arranged in the centers of the front face and the back face of the positioning door seat, and each heat preservation moving door assembly comprises a positioning rod, a first motor, a blocking door, a first sliding groove, a first sliding block, a second sliding groove, a first threaded rod and a second sliding block. The portal heat preservation device for tunnel construction has the advantages of being good in heat preservation effect and high in stability, and the problems that a heat preservation shed is affected by severe weather and is prone to being blown away by strong wind, and meanwhile the heat loss speed is high when materials are transported back and forth are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel opening heat preservation device for tunnel construction. Background Art

[0002] Tunnel projects are structures built underground, underwater, or in mountains to lay railways or build roads for motor vehicles to pass. According to their location, they can be divided into three categories: mountain tunnel projects, underwater tunnel projects, and urban tunnel projects. Mountain tunnel projects are those that pass under mountains or hills to shorten distances and avoid steep slopes; underwater tunnel projects are those that pass under rivers or seabeds to cross rivers or straits; and urban tunnel projects are those that pass underground in cities to meet the needs of railways passing through large cities. Of these three types of tunnel projects, mountain tunnel projects are the most commonly built.

[0003] Most tunnels in northern China involve winter construction. When the tunnel depth is short, the temperature inside the tunnel cannot reach a constant level. If the ambient temperature is low, the concrete will freeze, which will affect the concrete's solidification and reduce its construction quality. Generally, in order to keep warm, workers will build an insulation shed at the tunnel entrance. However, due to bad weather, the insulation shed is easily blown away by strong winds. At the same time, when transporting materials back and forth, the heat is lost quickly. Therefore, there is an urgent need for a tunnel entrance insulation device to overcome the above defects. Utility Model Content

[0004] The purpose of the utility model is to provide a tunnel entrance insulation device for tunnel construction, which has the advantages of good insulation effect and high stability, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel entrance insulation device for tunnel construction, comprising a positioning door seat, an insulation moving door assembly, a support and blocking assembly, a lifting assembly and a control switch, the control switches are fixedly mounted on the left side of the front and back sides of the positioning door seat, the lifting assembly is arranged at the center of the top of the positioning door seat, the support and blocking assembly is arranged on the surface of the lifting assembly, the insulation moving door assemblies are all arranged at the center of the front and back sides of the positioning door seat, the insulation moving door assembly comprises a positioning rod, a first motor, a blocking door, a first slide groove, a first slider, a second slide groove, a first threaded rod and a second slider, the support and blocking assembly comprises a supporting U-shaped seat, an arc plate, an L-shaped wind shield plate, a limit groove and a limit rod, the lifting assembly comprises a positioning column, a through groove, a second motor, a third slide groove, a linkage rod, a second threaded rod, a mounting block, a synchronization column and a third slider.

[0006] Furthermore, the first motor is fixedly installed on the right side of the positioning rod, the second sliding groove is opened inside the positioning rod, the second slider slides in the inner cavity of the second sliding groove, and the inner thread of the second slider is connected to the first threaded rod.

[0007] Furthermore, the output shaft of the first motor passes through the inner cavity of the second slide groove and is fixedly connected to the right side of the first threaded rod. The blocking door is fixedly installed on the bottom of the second slider, and the first slide groove is opened inside the blocking door.

[0008] Furthermore, the first slider slides inside the first slide groove, the relatively close side of the first slider is fixedly connected to the two sides of the positioning door seat, the relatively close side of the positioning rod is fixedly connected to the two sides of the positioning door seat, and the limit grooves are both opened on both sides of the top of the positioning door seat.

[0009] Furthermore, the limiting rod slides in the inner cavity of the limiting groove, the supporting U-shaped seat is fixedly installed on the top of the limiting rod, the arc-shaped plates are fixedly installed on both sides of the inner cavity of the supporting U-shaped seat, and the L-shaped wind shield plates are fixedly installed on the front and back of the supporting U-shaped seat.

[0010] Furthermore, the positioning column is fixedly installed at the center of the top of the positioning door seat, the through slot is opened inside the positioning column, the second motor is fixedly installed at the bottom of the inner cavity of the through slot, and a third sliding slot is opened inside the positioning column and on both sides of the through slot.

[0011] Furthermore, the third slider slides inside the third slide groove, and a linkage rod is fixedly installed on the relatively close side of the third slider. The interior of the linkage rod is connected to the second threaded rod through a thread, and the output shaft of the second motor is fixedly connected to the bottom of the second threaded rod.

[0012] Furthermore, the mounting block is fixedly mounted on the top of the linkage rod, the synchronization columns are fixedly mounted on both sides of the top of the mounting block, and the top of the synchronization column is fixedly connected to the bottom of the supporting U-shaped seat.

[0013] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0014] The utility model mainly prevents wind from pouring into the interior of the tunnel opening by arranging a positioning door seat, blocks the front and back sides of the positioning door seat by arranging a heat-insulating movable door assembly, supports the top of the tunnel opening by arranging a supporting and blocking assembly, and improves the stability of the overall device, adjusts the position of the supporting and blocking assembly by arranging a lifting assembly, and controls the live equipment by arranging a control switch. When supporting the top of the tunnel opening, the second motor is turned on, and the second motor drives the second threaded rod to rotate, so that the linkage rod drives the mounting block, the third slider and the synchronous column to move upward, and under the action of the synchronous column, the supporting U-shaped seat drives the limiting rod and the L-shaped wind shield plate to move upward, and under the action of the L-shaped wind shield plate The top of the tunnel entrance is blocked to prevent wind from entering. When staff members enter or exit or transport materials, they can press the control switch on one side, and the first motor drives the first threaded rod to rotate, so that the second slider drives the blocking door to move to one side. After people enter the inner cavity of the positioning door seat, the first motor drives the first threaded rod to rotate, so that the second slider drives the blocking door to close, and the first motor on the other side drives the first threaded rod to rotate, so that the second slider drives the blocking door to open, thereby preventing heat loss from the tunnel entrance. It has the advantages of good thermal insulation effect and high stability, and solves the problem that the insulation shed is easily blown away by strong wind due to bad weather, and the heat loss rate is fast when transporting materials back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the support and blocking assembly of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the lifting assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the thermal insulation sliding door assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the thermal insulation sliding door assembly of the present invention.

[0020] In the figure: 1. Positioning door seat; 2. Insulated sliding door assembly; 21. Positioning rod; 22. First motor; 23. Blocking door; 24. First slide; 25. First slider; 26. Second slide; 27. First threaded rod; 28. Second slider; 3. Support and blocking assembly; 31. Support U-shaped seat; 32. Arc plate; 33. L-shaped wind shield; 34. Limiting groove; 35. Limiting rod; 4. Lifting assembly; 41. Positioning column; 42. Through groove; 43. Second motor; 44. Third slide; 45. Linking rod; 46. Second threaded rod; 47. Mounting block; 48. Synchronous column; 49. Third slider; 5. Control switch. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-5 As shown, a tunnel entrance insulation device for tunnel construction includes a positioning door seat 1, an insulation moving door assembly 2, a support and blocking assembly 3, a lifting assembly 4 and a control switch 5, the control switches 5 are fixedly mounted on the left side of the front and back sides of the positioning door seat 1, the lifting assembly 4 is arranged at the center of the top of the positioning door seat 1, the support and blocking assembly 3 is arranged on the surface of the lifting assembly 4, the insulation moving door assembly 2 is arranged at the center of the front and back sides of the positioning door seat 1, the insulation moving door assembly 2 includes a positioning rod 21, a first motor 22, a blocking door 23, a first slide 24, a first slider 25, a second slide 26, a first threaded rod 27 and a second slider 28, the support and blocking assembly 3 includes a supporting U-shaped seat 31, an arc plate 32, an L-shaped wind shield plate 33, a limiting groove 34 and a limiting rod 35, the lifting assembly 4 includes a positioning column 41, a through groove 42, a second motor 43, a third slide 44, a linkage rod 45, a second threaded rod 46, a mounting block 47, a synchronization column 48 and a third slider 49;

[0023] More specifically, by setting the control switch 5 to control the live equipment, when supporting the top of the tunnel entrance, the second motor 43 is turned on, and the second threaded rod 46 is driven to rotate by the second motor 43, so that the linkage rod 45 drives the mounting block 47, the third slider 49 and the synchronous column 48 to move upward, and under the action of the synchronous column 48, the support U-shaped seat 31 drives the limit rod 35 and the L-shaped wind shield 33 to move upward, and under the action of the L-shaped wind shield 33, the top of the tunnel entrance is blocked to prevent it from entering the wind. When there are staff When entering or exiting, the control switch 5 on one side can be pressed, and the first motor 22 drives the first threaded rod 27 to rotate, so that the second slider 28 drives the blocking door 23 to move to one side. After the person enters the inner cavity of the positioning door seat 1, the first motor 22 drives the first threaded rod 27 to rotate, so that the second slider 28 drives the blocking door 23 to close, and the first motor 22 on the other side drives the first threaded rod 27 to rotate so that the second slider 28 drives the blocking door 23 to open, thereby preventing the heat loss at the tunnel entrance, and has the advantages of good thermal insulation effect and high stability.

[0024] In some embodiments, the first motor 22 is fixedly installed on the right side of the positioning rod 21, the second slide groove 26 is opened inside the positioning rod 21, the second slider 28 slides in the inner cavity of the second slide groove 26, and the internal thread of the second slider 28 is connected to the first threaded rod 27. More specifically, the second slide groove 26 is set to limit the second slider 28 to prevent the second slider 28 from shaking during the movement, and the second slider 28 is set to limit the blocking door 23 to prevent the blocking door 23 from shaking during the movement.

[0025] In some embodiments, the output shaft of the first motor 22 passes through the inner cavity of the second slide groove 26 and is fixedly connected to the right side of the first threaded rod 27. The blocking door 23 is fixedly installed at the bottom of the second slider 28. The first slide groove 24 is opened inside the blocking door 23. More specifically, the first threaded rod 27 is driven by setting the first motor 22, and the blocking door 23 is moved to the specified position by the second slider 28.

[0026] In some embodiments, the first slider 25 slides inside the first slide groove 24, and the relatively close side of the first slider 25 is fixedly connected to the two sides of the positioning door seat 1, and the relatively close side of the positioning rod 21 is fixedly connected to the two sides of the positioning door seat 1, and the limiting grooves 34 are both opened on both sides of the top of the positioning door seat 1. More specifically, the first slide groove 24 is provided to limit the first slider 25 to prevent the first slider 25 from shaking during movement, and at the same time, the stability of the blocking door 23 during movement is improved, and the limiting groove 34 is provided to limit the limiting rod 35 to prevent the limiting rod 35 from shaking during movement.

[0027] In some embodiments, the limiting rod 35 slides in the inner cavity of the limiting groove 34, the supporting U-shaped seat 31 is fixedly installed on the top of the limiting rod 35, the curved plates 32 are fixedly installed on both sides of the inner cavity of the supporting U-shaped seat 31, and the L-shaped wind shields 33 are fixedly installed on the front and back of the supporting U-shaped seat 31. More specifically, the supporting U-shaped seat 31 is limited by setting the limiting rod 35 to prevent the supporting U-shaped seat 31 from shaking during movement, and the air circulating in the tunnel is blocked by setting the L-shaped wind shield 33 and the curved plate 32.

[0028] In some embodiments, the positioning column 41 is fixedly installed at the center of the top of the positioning door seat 1, the through slot 42 is opened inside the positioning column 41, the second motor 43 is fixedly installed at the bottom of the inner cavity of the through slot 42, and a third slide groove 44 is opened inside the positioning column 41 and on both sides of the through slot 42. More specifically, the second motor 43 is installed by setting the through slot 42, and the third slide groove 44 is set to limit the third slider 49 to prevent the third slider 49 from shaking during movement.

[0029] In some embodiments, the third slider 49 slides inside the third slide groove 44, and a linkage rod 45 is fixedly installed on the relatively close side of the third slider 49. The interior of the linkage rod 45 is connected to the second threaded rod 46 through a thread, and the output shaft of the second motor 43 is fixedly connected to the bottom of the second threaded rod 46. More specifically, the third slider 49 is provided to limit the two sides of the linkage rod 45 to prevent the linkage rod 45 from shaking during the movement. The second motor 43 is provided to drive the second threaded rod 46 to indirectly move the position of the linkage rod 45.

[0030] In some embodiments, the mounting block 47 is fixedly mounted on the top of the linkage rod 45, and the synchronization columns 48 are fixedly mounted on both sides of the top of the mounting block 47. The top of the synchronization column 48 is fixedly connected to the bottom of the support U-shaped seat 31. More specifically, the synchronization column 48 is installed by setting the mounting block 47, and the bottom of the inner cavity of the support U-shaped seat 31 is connected through the synchronization column 48, so that the linkage rod 45 and the support U-shaped seat 31 move synchronously.

[0031] Working principle:

[0032] Step 1: When supporting the top of the tunnel entrance, turn on the second motor 43, and the second motor 43 drives the second threaded rod 46 to rotate, so that the linkage rod 45 drives the mounting block 47, the third slider 49 and the synchronous column 48 to move upward. Under the action of the synchronous column 48, the support U-shaped seat 31 drives the limiting rod 35 and the L-shaped wind shield 33 to move upward. Under the action of the L-shaped wind shield 33, the top of the tunnel entrance is blocked to prevent wind from entering.

[0033] Step 2: When staff members enter or exit or transport materials, they can press the control switch 5 on one side, and the first motor 22 drives the first threaded rod 27 to rotate, so that the second slider 28 drives the blocking door 23 to move to one side. After the person enters the inner cavity of the positioning door seat 1, the first motor 22 drives the first threaded rod 27 to rotate, so that the second slider 28 drives the blocking door 23 to close, and the first motor 22 on the other side drives the first threaded rod 27 to rotate so that the second slider 28 drives the blocking door 23 to open, thereby preventing heat loss at the tunnel entrance, and has the advantages of good thermal insulation effect and high stability.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A tunnel entrance insulation device for tunnel construction, characterized by: The invention comprises a positioning door seat (1), a heat-insulating movable door assembly (2), a support and blocking assembly (3), a lifting assembly (4) and a control switch (5), wherein the control switches (5) are fixedly mounted on the left side of the front and back sides of the positioning door seat (1), the lifting assembly (4) is arranged at the center of the top of the positioning door seat (1), the support and blocking assembly (3) is arranged on the surface of the lifting assembly (4), the heat-insulating movable door assembly (2) is arranged at the center of the front and back sides of the positioning door seat (1), and the heat-insulating movable door assembly (2) comprises a positioning rod (21), a first motor (22), a blocking assembly (3), a lifting assembly (4), and a control switch (5). The invention relates to a door (23), a first sliding groove (24), a first slider (25), a second sliding groove (26), a first threaded rod (27) and a second slider (28); the support and blocking assembly (3) comprises a supporting U-shaped seat (31), an arc-shaped plate (32), an L-shaped wind shielding plate (33), a limiting groove (34) and a limiting rod (35); the lifting assembly (4) comprises a positioning column (41), a through groove (42), a second motor (43), a third sliding groove (44), a linkage rod (45), a second threaded rod (46), a mounting block (47), a synchronization column (48) and a third slider (49).

2. The tunnel entrance insulation device for tunnel construction according to claim 1, characterized in that: The first motor (22) is fixedly mounted on the right side of the positioning rod (21), the second slide groove (26) is opened inside the positioning rod (21), the second slider (28) slides in the inner cavity of the second slide groove (26), and the internal thread of the second slider (28) is connected to the first threaded rod (27).

3. The tunnel construction portal insulation device according to claim 1, characterized in that: The output shaft of the first motor (22) passes through the inner cavity of the second slide groove (26) and is fixedly connected to the right side of the first threaded rod (27); the blocking door (23) is fixedly installed on the bottom of the second slider (28); and the first slide groove (24) is opened inside the blocking door (23).

4. The tunnel entrance insulation device for tunnel construction according to claim 1, characterized in that: The first slider (25) slides inside the first slide groove (24), the relatively close side of the first slider (25) is fixedly connected to the two sides of the positioning door seat (1), the relatively close side of the positioning rod (21) is fixedly connected to the two sides of the positioning door seat (1), and the limiting grooves (34) are both opened on both sides of the top of the positioning door seat (1).

5. The tunnel entrance insulation device for tunnel construction according to claim 1, characterized in that: The limiting rod (35) slides in the inner cavity of the limiting groove (34), the supporting U-shaped seat (31) is fixedly mounted on the top of the limiting rod (35), the arc-shaped plates (32) are fixedly mounted on both sides of the inner cavity of the supporting U-shaped seat (31), and the L-shaped wind shielding plates (33) are fixedly mounted on the front and back of the supporting U-shaped seat (31).

6. The tunnel construction portal insulation device according to claim 1, characterized in that: The positioning column (41) is fixedly mounted at the center of the top of the positioning door seat (1); the through slot (42) is provided inside the positioning column (41); the second motor (43) is fixedly mounted at the bottom of the inner cavity of the through slot (42); and a third sliding slot (44) is provided inside the positioning column (41) and on both sides of the through slot (42).

7. The tunnel entrance insulation device for tunnel construction according to claim 1, characterized in that: The third slider (49) slides inside the third slide groove (44), and a linkage rod (45) is fixedly installed on a relatively close side of the third slider (49). The interior of the linkage rod (45) is connected to a second threaded rod (46) through a thread, and the output shaft of the second motor (43) is fixedly connected to the bottom of the second threaded rod (46).

8. The tunnel entrance insulation device for tunnel construction according to claim 1, characterized in that: The mounting block (47) is fixedly mounted on the top of the linkage rod (45), and the synchronization columns (48) are fixedly mounted on both sides of the top of the mounting block (47). The top of the synchronization column (48) is fixedly connected to the bottom of the support U-shaped seat (31).

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