Supporting and protecting device

Abstract

The utility model provides a supporting and protecting device, and relates to the technical field of tunnel engineering. A lower supporting plate is mounted at the top of the base in a sliding manner; the left side and the right side of the top of the base are each rotationally provided with a lifting screw. A lower supporting column is welded to the top of the lower supporting plate. An expansion supporting block is mounted at the top of the lower supporting column; an upper supporting column is mounted at the top of the extension supporting block; the inner sides of the tops of the lower supporting columns and the inner sides of the tops of the extension supporting blocks are each provided with a positioning clamping block in a sliding mode. One side of the lower supporting column and one side of the expansion supporting block are each provided with an adjusting knob in a threaded fit mode. And a guide rod is rotationally mounted at one end of each adjusting knob. According to the device, tunnels with different heights can be supported, a telescopic structure does not need to be used during adjustment, the loosening situation is avoided, and the use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a supporting and protecting device. Background Art

[0002] During the tunnel excavation process, a concrete cushion needs to be laid at the bottom of the excavated circular tunnel. In order to prevent the tunnel from collapsing, a supporting structure is needed to support the top of the tunnel during construction to ensure the safety of tunnel construction.

[0003] Because the height inside the tunnel is usually different, telescopic support columns are often used to support the top of the tunnel. Telescopic support columns are mostly positioned by bolts. The telescopic position is prone to loosening during support, and the stability is poor. Summary of the invention

[0004] The utility model provides a supporting and protecting device, which can support tunnels of different heights, and does not need to use a telescopic structure during adjustment, so there is no looseness, thereby improving the stability of use.

[0005] In a first aspect of the present disclosure, a supporting and protecting device is provided, specifically comprising: a base;

[0006] A lower support plate is slidably installed on the top of the base; a lifting screw is rotatably installed on the left and right sides of the top of the base; a lower support column is welded on the top of the lower support plate; an extension support block is installed on the top of the lower support column; an upper support column is installed on the top of the extension support block; a positioning block is slidably installed on the inner side of the top of the lower support column and the extension support block; an adjusting knob is also installed on one side of the lower support column and the extension support block through threaded cooperation; a guide rod is rotatably installed on one end of the adjusting knob.

[0007] In at least some embodiments, the guide rod is an inclined cylindrical rod, an inclined cylindrical hole is also provided on the inner side of the positioning block, and the guide rod can slide back and forth in the cylindrical hole on the inner side of the positioning block.

[0008] In at least some embodiments, the bottom of the extended support block and the bottom of the upper support column are each provided with two inverted T-shaped columnar protrusions, and the top of the lower support column and the top of the extended support block are also provided with two corresponding inverted T-shaped grooves.

[0009] In at least some embodiments, when the guide rod slides to the rearmost side, the positioning block will move down to the bottom, and when the guide rod slides to the frontmost side, the positioning block will move up to the top.

[0010] In at least some embodiments, a rectangular groove with a top opening is provided on the inner side of the top of the lower support column and the extended support block, and the positioning block can slide up and down in the rectangular groove on the top of the lower support column and the extended support block.

[0011] In at least some embodiments, the lower support plate is slidably supported by four round rods, and a threaded hole corresponding to the outer thread of the lifting screw is provided on both the left and right sides of the lower support plate.

[0012] In at least some embodiments, a rectangular groove is also provided at the middle position of the bottom of the extended support block and the upper support column, and when the positioning block slides upward, its top end can be embedded in the rectangular groove at the bottom of the extended support block and the upper support column.

[0013] The utility model provides a supporting protection device, which has the following beneficial effects:

[0014] The lower support column, the extended support block and the upper support column in the utility model are assembled together into a complete support column. During assembly, not only the overall height of the support column can be adjusted by adjusting the number of installed extended support blocks, but also the overall height of the support column can be fine-tuned by adjusting the height of the lower support plate. The device can support tunnels of different heights, and there is no need to use a telescopic structure during adjustment, so there will be no looseness, thereby improving stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the main shaft side of the overall structure of the present application;

[0019] Figure 2 A schematic diagram of the main shaft side when the extended support block is disassembled in the present application is shown;

[0020] Figure 3 A schematic diagram of the main shaft side of the lower support plate and the lower support column in the present application is shown;

[0021] Figure 4 It shows a schematic diagram of the shaft side after the present application is cut and the positioning block is moved downward;

[0022] Figure 5 It shows a schematic diagram of the shaft side after the present application is cut and the positioning block is moved upward;

[0023] Figure 6 A schematic diagram of the elevation side of the extended support block in the present application is shown;

[0024] Reference numerals list

[0025] 1. Base; 2. Lower support plate; 3. Lifting screw; 4. Lower support column; 5. Extension support block; 6. Upper support column; 7. Positioning block; 8. Adjustment knob; 9. Guide rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] The utility model proposes a supporting and protecting device, comprising: a base 1;

[0029] A lower support plate 2 is slidably installed on the top of the base 1, and the base 1 is used for sliding support of the lower support plate 2 and rotation support of the lifting screw 3, and the lower support plate 2 is used to support the lower support column 4; a lifting screw 3 is also rotatably installed on the left and right sides of the top of the base 1. When it is necessary to fine-tune the overall height of the device, the two lifting screws 3 can rotate synchronously. At this time, the two lifting screws 3 can drive the lower support plate 2 to slide up and down under the support of the round rod at the top of the base 1, so that the overall height of the device can be fine-tuned, and it is more adaptable when supporting tunnels of different heights; a lower support column 4 is welded on the top of the lower support plate 2, and the lower support column 4 can jointly support the top of the tunnel after being assembled with the extended support block 5 and the upper support column 6; an extended support block 5 is installed on the top of the lower support column 4, and the extended support block 5 can jointly support the top of the tunnel after being assembled with the lower support column 4 and the upper support column 6, and can be selected according to the tunnel height to be supported The number of expansion support blocks 5 installed is convenient for supporting tunnels of different heights; an upper support column 6 is installed on the top of the expansion support block 5, and the upper support column 6 can support the top of the tunnel together after being assembled with the lower support column 4 and the expansion support block 5; a positioning block 7 is slidably installed on the inner side of the top of the lower support column 4 and the expansion support block 5, and when the positioning block 7 slides to the top, its top will be embedded in the rectangular groove at the bottom of the expansion support block 5 and the upper support column 6, thereby limiting the expansion support block 5 and the upper support column 6 from sliding in the horizontal direction, and then the position of the expansion support block 5 and the upper support column 6 can be firmly fixed, so that the top of the tunnel can be stably supported; an adjusting knob 8 is also installed on one side of the lower support column 4 and the expansion support block 5 through threaded cooperation, and the adjusting knob 8 is used to adjust the front and rear position of the guide rod 9; a guide rod 9 is rotatably installed on one end of the adjusting knob 8, and the guide rod 9 can slide back and forth to adjust the height of the positioning block 7.

[0030] In the present disclosure, Figure 4 and Figure 5 As shown, the guide rod 9 is an inclined cylindrical rod, and an inclined cylindrical hole is also provided on the inner side of the positioning block 7, and the guide rod 9 can slide back and forth in the cylindrical hole on the inner side of the positioning block 7. During installation, the adjusting knob 8 can be rotated counterclockwise to drive the guide rod 9 to slide forward, and the positioning block 7 will move up to the top to achieve locking. When the device needs to be disassembled, the adjusting knob 8 can be rotated clockwise to push the guide rod 9 to slide backward, and the positioning block 7 will move down to the bottom, so that the extended support block 5 and the upper support column 6 can be unlocked, and then the extended support block 5 and the upper support column 6 can be disassembled.

[0031] In the present disclosure, Figure 1-Figure 6As shown, the bottom of the extended support block 5 and the bottom of the upper support column 6 are both provided with two inverted T-shaped columnar protrusions, and the top of the lower support column 4 and the top of the extended support block 5 are also provided with two corresponding inverted T-shaped grooves. When the extended support block 5 is installed on the top of the lower support column 4, it is only necessary to first embed the inverted T-shaped columnar protrusion at the bottom of the extended support block 5 into the inverted T-shaped groove at the top of the lower support column 4, so that the extended support block 5 and the lower support column 4 can be locked up and down. When the extended support block 5 is assembled up and down, the inverted T-shaped columnar protrusion at the bottom of the upper extended support block 5 can be embedded in the inverted T-shaped groove at the top of the lower extended support block 5, so that the upper and lower adjacent extended support blocks 5 can also be locked together. When the upper support column 6 is installed on the top of the extended support block 5, it is only necessary to first embed the inverted T-shaped columnar protrusion at the bottom of the upper support column 6 into the inverted T-shaped groove at the top of the extended support block 5, so that the upper support column 6 and the extended support block 5 can be locked up and down.

[0032] In the present disclosure, Figure 4 and Figure 5 As shown, when the guide rod 9 slides to the rearmost side, the positioning block 7 will move down to the bottom, and when the guide rod 9 slides to the frontmost side, the positioning block 7 will move up to the top. When the positioning block 7 slides up to the top, its top will be embedded in the rectangular groove at the bottom of the extension support block 5 and the upper support column 6, thereby limiting the extension support block 5 and the upper support column 6 from sliding in the horizontal direction, and then the position of the extension support block 5 and the upper support column 6 can be firmly fixed, so that the tunnel top can be stably supported. When the device needs to be disassembled later, the adjusting knob 8 can be rotated clockwise to push the guide rod 9 to slide backward. At this time, the positioning block 7 will move down to the bottom, so the extension support block 5 and the upper support column 6 can be unlocked, and then the extension support block 5 and the upper support column 6 can be disassembled.

[0033] In the present disclosure, Figure 4 and Figure 5 As shown, the inner side of the top of the lower support column 4 and the extended support block 5 is provided with a rectangular groove with a top opening, and the positioning block 7 can slide up and down in the rectangular grooves on the top of the lower support column 4 and the extended support block 5. When the positioning block 7 slides down to the bottom, it will be hidden in the rectangular grooves on the top of the lower support column 4 and the extended support block 5. Therefore, the extended support block 5 and the upper support column 6 can be slidably installed or removed, and when the positioning block 7 slides up to the top, its top end will be embedded in the rectangular grooves at the bottom of the extended support block 5 and the upper support column 6. Therefore, the extended support block 5 and the upper support column 6 can be restricted from sliding in the horizontal direction, thereby firmly fixing the position of the extended support block 5 and the upper support column 6.

[0034] In the present disclosure, Figure 4-Figure 6As shown, a rectangular groove is also provided at the middle position of the bottom of the extended support block 5 and the upper support column 6, and when the positioning block 7 slides upward, its top end can be embedded in the rectangular groove at the bottom of the extended support block 5 and the upper support column 6, thereby limiting the sliding of the extended support block 5 and the upper support column 6 in the horizontal direction, and furthermore, the position of the extended support block 5 and the upper support column 6 can be firmly fixed.

[0035] Embodiment 2, based on embodiment 1, as Figure 1-Figure 6 As shown, the lower support plate 2 is slidably supported by four round rods, and a threaded hole corresponding to the outer thread of the lifting screw 3 is provided on the left and right sides of the lower support plate 2. When it is necessary to fine-tune the overall height of the device, the two lifting screws 3 can be rotated synchronously. At this time, the two lifting screws 3 can drive the lower support plate 2 to slide up and down under the support of the round rods on the top of the base 1, so the overall height of the device can be fine-tuned, and it is more adaptable when supporting tunnels of different heights.

[0036] The working principle of this embodiment is as follows: when assembling this device, first place the base 1 on the ground in the tunnel, then take an extended support block 5 and install it on the top of the lower support column 4. When installing, you only need to first embed the inverted T-shaped columnar protrusion at the bottom of the extended support block 5 into the inverted T-shaped groove at the top of the lower support column 4, so that the extended support block 5 and the lower support column 4 can be locked up and down, and the number of extended support blocks 5 installed can be selected according to the tunnel height that needs to be supported, which is convenient for supporting tunnels of different heights. When assembling the extended support blocks 5 up and down, the inverted T-shaped columnar protrusion at the bottom of the upper extended support block 5 can be embedded in the inverted T-shaped groove at the top of the lower extended support block 5, so that the upper and lower adjacent extended support blocks 5 can also be locked together, and then the upper support column 6 can be installed on the top of the extended support block 5. When installing, you only need to first embed the inverted T-shaped columnar protrusion at the bottom of the upper support column 6 into the inverted T-shaped groove at the top of the extended support block 5, so that the upper support column 6 and the extended support block 5 can be locked up and down, and finally the adjusting knob 8 can be When all are rotated counterclockwise, the guide rod 9 slides forward, and the positioning block 7 will move up to the top. When the positioning block 7 slides up to the top, its top will be embedded in the rectangular groove at the bottom of the extended support block 5 and the upper support column 6, thereby limiting the sliding of the extended support block 5 and the upper support column 6 in the horizontal direction, and then the positions of the extended support block 5 and the upper support column 6 can be firmly fixed, so that the top of the tunnel can be stably supported. When it is necessary to fine-tune the overall height of the device, the two lifting screws 3 can be rotated synchronously. At this time, the two lifting screws 3 can drive the lower support plate 2 to slide up and down under the support of the round rod at the top of the base 1, so that the overall height of the device can be fine-tuned, and it is more adaptable to supporting tunnels of different heights. When it is necessary to disassemble the device later, the adjusting knob 8 can be rotated clockwise to push the guide rod 9 to slide backward. At this time, the positioning block 7 will move down to the bottom, so the extended support block 5 and the upper support column 6 can be unlocked, and then the extended support block 5 and the upper support column 6 can be disassembled.

[0037] In this article, there are a few points to note:

[0038] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0039] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0040] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A supporting and protecting device, comprising: Base; characterized in that: A lower support plate is slidably installed on the top of the base; a lifting screw is rotatably installed on the left and right sides of the top of the base; a lower support column is welded on the top of the lower support plate; an extension support block is installed on the top of the lower support column; an upper support column is installed on the top of the extension support block; a positioning block is slidably installed on the inner side of the top of the lower support column and the extension support block; an adjusting knob is also installed on one side of the lower support column and the extension support block through threaded cooperation; a guide rod is rotatably installed on one end of the adjusting knob.

2. A supporting and protecting device according to claim 1, characterized in that: The bottom of the extended support block and the bottom of the upper support column are both provided with two inverted T-shaped columnar protrusions, and the top of the lower support column and the top of the extended support block are also provided with two corresponding inverted T-shaped grooves.

3. A supporting and protecting device according to claim 1, characterized in that: A rectangular groove with a top opening is arranged on the inner side of the top of the lower support column and the extended support block, and the positioning block can slide up and down in the rectangular groove on the top of the lower support column and the extended support block.

4. A supporting and protecting device according to claim 1, characterized in that: A rectangular groove is also provided at the middle position of the bottom of the extended support block and the upper support column, and when the positioning block slides upward, the top end thereof can be embedded in the rectangular groove at the bottom of the extended support block and the upper support column.

5. A supporting and protecting device according to claim 1, characterized in that: The guide rod is an inclined cylindrical rod, and an inclined cylindrical hole is also provided on the inner side of the positioning block, and the guide rod can slide back and forth in the cylindrical hole on the inner side of the positioning block.

6. A supporting and protecting device according to claim 1, characterized in that: When the guide rod slides to the rearmost side, the positioning block will move down to the bottom, and when the guide rod slides to the frontmost side, the positioning block will move up to the top.

7. A supporting and protecting device according to claim 1, characterized in that: The lower support plate is slidably supported by four round rods, and a threaded hole corresponding to the outer thread of the lifting screw is arranged on both the left and right sides of the lower support plate.

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