A tunnel lining concrete pressure detection device

Abstract

The present invention relates to the field of construction detection technology, and specifically provides a tunnel lining concrete pressure detection device, comprising a trolley panel, a positioning mechanism, a pressure detection mechanism and a locking mechanism; the positioning mechanism comprises a sealing cylinder, a wedge block, a push rod, an annular push plate and a locking slider; the pressure detection mechanism comprises a detection platform, a pressure sensor and a mounting seat, and the pressure sensor is used to detect the tunnel lining concrete pressure after abutting against the detection platform, and the sealing cylinder can automatically achieve preliminary locking after moving to the top end to be flush with the trolley panel, so that it is convenient to re-tighten the positioned sealing cylinder through the locking mechanism later, so that the sealing cylinder can remain stable during operation, and when performing pressure detection, the detection platform can also remain flush with the sealing cylinder and the trolley panel, and transmit the pressure to the pressure sensor, thereby solving the problem of uneven casting surface when detecting the lining concrete pressure.

Description

Technical Field

[0001] The invention relates to the technical field of construction detection, and in particular to a tunnel lining concrete pressure detection device. Background Art

[0002] Since whether the concrete is fully poured is related to the quality of the entire lining, the pouring of the secondary lining vault is the most important part of the entire secondary lining operation process, which directly affects the quality of the entire lining. Since the trolley template needs to bear its own weight, the weight of the concrete, and the pressure of the pumping, the detection range of the existing detection technology is often only one point, and the detection contact diameter is about 20mm. When stones fall into the detection point or concrete solidifies at the detection point, the actual size of the pressure cannot be detected, thus affecting the pouring quality.

[0003] Patent document publication number CN117554174A discloses a road bridge tunnel lining concrete pressure detection device, including a trolley panel, a detection platform, a pressure processing unit, a force collector and an adjustment component, wherein the adjustment component includes a cylinder, a base, a driving member, a bidirectional threaded rod, a rotating seat, two sleeves and two connecting rods, the cylinder is connected to the trolley panel, the pressure processing unit is arranged on the outer wall of the cylinder, the force collector is arranged between the base and the detection platform, the driving member is fixedly connected to the cylinder, the rotating seat is rotatably connected to the cylinder, the two ends of the bidirectional threaded rod are respectively fixedly connected to the rotating seat and the driving member, the two sleeves are threadedly matched with the bidirectional threaded rod, and the two ends of each connecting rod are respectively rotatably connected to the base and the corresponding sleeve. However, this patent still has some shortcomings: it is difficult to align the surface of the detection platform with the trolley panel, and pits or misalignment are easily generated on the concrete surface after pouring, which affects the quality of the pouring surface. Summary of the invention

[0004] In order to solve the problem that the surface of the detection platform is difficult to align with the trolley panel during pressure detection, resulting in an uneven surface of poured concrete, the present invention provides a tunnel lining concrete pressure detection device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a tunnel lining concrete pressure detection device, including a trolley panel, a detection hole is opened on the trolley panel, a positioning mechanism and a pressure detection mechanism are installed in the detection hole, and the bottom of the positioning mechanism is fixedly connected to the trolley panel through a locking mechanism; the positioning mechanism includes a sealing cylinder, a wedge block, a push rod, an annular push plate and a locking slider, the outer wall of the sealing cylinder is slidably and sealedly connected to the detection hole, the outer wall of the sealing cylinder is also opened with a receiving groove, the wedge block is horizontally slidably installed in the receiving groove, the annular push plate is slidably sleeved on the sealing cylinder, the push rod passes through the bottom of the receiving groove and is fixedly connected to the annular push plate, and the locking slider is horizontally slidably installed At the top end of the push rod, when the wedge block extends out of the accommodating groove, the bottom of the wedge block can block the top of the locking slider to limit the push rod. When the wedge block is completely retracted into the accommodating groove, the annular push plate can push the push rod to move upward. When the push rod moves upward, the inclined surface of the wedge block can squeeze one end of the locking slider out of the accommodating groove and abut against the inner wall of the detection hole. The pressure detection mechanism includes a detection platform, a pressure sensor and a mounting seat. The detection platform is slidably installed on the top of the sealing cylinder for contacting the tunnel lining concrete. The mounting seat is installed on the inner side of the sealing cylinder. The pressure sensor is fixed on the mounting seat. After the pressure sensor abuts against the detection platform, it is used to detect the pressure of the tunnel lining concrete.

[0006] Preferably, the locking mechanism includes a support plate, an adjustment plate and an adjustment seat, the adjustment seat is fixed on the trolley panel, a strip groove is provided on the adjustment seat, the adjustment plate is slidably installed in the strip groove and can be locked by bolts, the support plate is fixed on the adjustment plate, and the sealing tube is vertically fixed on the support plate.

[0007] Preferably, a telescopic pin head is also installed on the side of the testing platform, and the inner wall of the sealing cylinder is provided with a pin hole for accommodating the telescopic pin head. The upper surface of the telescopic pin head is horizontally arranged, and the lower surface of the telescopic pin head is a sloped surface. When the telescopic pin head is engaged with the pin hole, the upper surface of the testing platform is flush with the upper surface of the sealing cylinder and the trolley panel, and the telescopic pin head can be pressed into the testing platform when the testing platform moves downward.

[0008] Preferably, a slide groove penetrating the sealing cylinder is provided on the side wall at the lower portion of the sealing cylinder, and a buffer spring is fixed to the edge of the mounting seat, and the end of the buffer spring passes through the slide groove and is fixedly connected to the inner ring of the annular push plate.

[0009] Preferably, a thrust spring is installed between the annular push plate and the support plate, and the thrust spring is used to push the annular push plate to move upward.

[0010] Preferably, a shift ring is rotatably mounted on the outer ring of the annular push plate, and two limit posts are fixed below the shift ring at equal intervals along the circumference of the shift ring. When the shift ring is rotated, the bottoms of the two limit posts can abut against the upper surface of the support plate.

[0011] Preferably, a bayonet is provided at the bottom of the locking slider, and a positioning block is fixed at the bottom of the accommodating groove. When the locking slider moves downward to the positioning block, the positioning block can be inserted into the bayonet and push the locking slider to move horizontally into the accommodating groove.

[0012] Preferably, a spring sheet is fixed between the wedge-shaped block and the side wall of the receiving groove, and the spring sheet is used to push the wedge-shaped block out of the receiving groove.

[0013] The beneficial effect of the present invention is that a positioning mechanism is provided, and through the cooperation of the wedge block, the push rod and the locking slider of the positioning mechanism, the sealing cylinder can automatically achieve preliminary locking after moving to the top end and flush with the trolley panel, so that the sealing cylinder that has been positioned can be tightened again through the locking mechanism later, so that the sealing cylinder can remain stable during operation, and when performing pressure testing, the testing table can also remain flush with the sealing cylinder and the trolley panel, and the pressure is transmitted to the pressure sensor, which solves the problem of uneven casting surface that is easily caused when testing the pressure of the lining concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of a best embodiment of a tunnel lining concrete pressure detection device of the present invention;

[0016] Figure 2 It is a structural schematic diagram of a wedge-shaped block of a tunnel lining concrete pressure detection device of the present invention in a retracted state;

[0017] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 It is a structural schematic diagram of a dial ring of a tunnel lining concrete pressure detection device of the present invention;

[0019] Figure 5It is a structural schematic diagram of an adjustment seat of a tunnel lining concrete pressure detection device of the present invention;

[0020] Figure 6 It is a structural schematic diagram of a wedge-shaped block of a tunnel lining concrete pressure detection device of the present invention in an extended state;

[0021] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0022] 1. Carriage panel; 2. Detection hole; 3. Positioning mechanism; 4. Pressure detection mechanism; 5. Locking mechanism; 6. Sealing cylinder; 7. Wedge block; 8. Push rod; 9. Annular push plate; 10. Locking slider; 11. Accommodating groove; 12. Detection platform; 13. Pressure sensor; 14. Mounting seat; 15. Support plate; 16. Adjustment plate; 17. Adjustment seat; 18. Strip groove; 19. Bolt; 20. Telescopic pin head; 21. Slide groove; 22. Buffer spring; 23. Thrust spring; 24. Dial ring; 25. Limit column; 26. Bayonet; 27. Positioning block; 28. Reset spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0025] like Figures 1 to 7 As shown, the present invention provides an embodiment of a tunnel lining concrete pressure detection device, including a trolley panel 1, a detection hole 2 is opened on the trolley panel 1, a positioning mechanism 3 and a pressure detection mechanism 4 are installed in the detection hole 2, and the bottom of the positioning mechanism 3 is fixedly connected to the trolley panel 1 through a locking mechanism 5.

[0026] The positioning mechanism 3 includes a sealing cylinder 6, a wedge block 7, a push rod 8, an annular push plate 9 and a locking slider 10. The outer wall of the sealing cylinder 6 is slidably and sealedly connected to the detection hole 2. The outer wall of the sealing cylinder 6 is also provided with a receiving groove 11. The wedge block 7 is horizontally slidably installed in the receiving groove 11. A reset spring piece 28 is also fixed between the wedge block 7 and the side wall of the receiving groove 11. The reset spring piece 28 is used to push the wedge block 7 out of the receiving groove 11.

[0027] The annular push plate 9 is slidably sleeved on the sealing tube 6 , and a thrust spring 23 is also installed between the annular push plate 9 and the support plate 15 , and the thrust spring 23 is used to push the annular push plate 9 to move upward.

[0028] The push rod 8 passes through the bottom of the accommodating groove 11 and is fixedly connected to the annular push plate 9. The locking slider 10 is horizontally slidably installed on the top of the push rod 8. When the wedge block 7 extends out of the accommodating groove 11, the bottom of the wedge block 7 can block the top of the locking slider 10 to limit the push rod 8. When the wedge block 7 is completely retracted into the accommodating groove 11, the annular push plate 9 can push the push rod 8 to move upward. When the push rod 8 moves upward, the inclined surface of the wedge block 7 can squeeze one end of the locking slider 10 out of the accommodating groove 11 and abut against the inner wall of the detection hole 2. A bayonet 26 is provided at the bottom of the locking slider 10, and a positioning block 27 is also fixed to the bottom of the accommodating groove 11. When the locking slider 10 moves downward to the positioning block 27, the positioning block 27 can be inserted into the bayonet 26 and push the locking slider 10 to move horizontally into the accommodating groove 11.

[0029] The working principle of the positioning mechanism 3 is as follows: when installing the positioning mechanism 3, first insert the sealing cylinder 6 into the detection hole 2 and make the upper end of the sealing cylinder 6 extend out of the detection hole 2. When the sealing cylinder 6 enters the detection hole 2, the wedge block 7 and the locking slider 10 are completely pressed into the receiving groove 11 so that the sealing cylinder 6 can move into place smoothly. Then, the annular push plate 9 is pressed down to the lowest point, and the annular push plate 9 drives the push rod 8 and the locking slider 10 to move down to the bottom end of the receiving groove 11. At this time, the reset spring 28 can push the wedge block 7 to slide out horizontally until the inclined surface of the wedge block 7 completely extends out of the receiving groove 11, and the bottom of the wedge block 7 abuts against the top of the locking slider 10 to prevent the push rod 8 from moving up and keep the thrust spring 23 in a compressed state; when positioning, pull the sealing cylinder 6 downward, and at this time the inclined surface of the wedge block 7 is along the detection hole 2, the inner edge of the wedge block 7 slides downward, and when the top of the sealing cylinder 6 is flush with the upper end of the detection hole 2, that is, the upper surface of the trolley panel 1, the highest point of the inclined surface of the wedge block 7 is kept flush with the top of the sealing cylinder 6. At this time, the wedge block 7 can be completely pressed into the receiving groove 11, so that the wedge block 7 no longer blocks the locking slider 10 and the push rod 8. At this time, the push rod 8 is pushed and moved upward by the thrust spring 23. During the upward movement of the push rod 8, the locking slider 10 is driven to move upward and contact the inclined surface of the wedge block 7 pressed into the receiving groove 11. Then, the locking slider 10 moves upward along the inclined surface of the wedge block 7. Therefore, the locking slider 10 will be squeezed out of the receiving groove 11 by the wedge block 7 during the upward movement, so that the locking slider 10 can be pressed against the inner wall of the detection hole 2, thereby achieving the effect of preliminary locking of the sealing cylinder 6.

[0030] The pressure detection mechanism 4 includes a detection platform 12, a pressure sensor 13 and a mounting seat 14. The detection platform 12 is slidably mounted on the top of the sealing cylinder 6 for contacting the tunnel lining concrete. The mounting seat 14 is mounted on the inner side of the sealing cylinder 6. The pressure sensor 13 is fixed on the mounting seat 14. The pressure sensor 13 is used to detect the pressure of the tunnel lining concrete after abutting against the detection platform 12. A sliding groove 21 penetrating the sealing cylinder 6 is also provided on the side wall at the lower part of the sealing cylinder 6. A buffer spring 22 is also fixed on the edge of the mounting seat 14. The end of the buffer spring 22 passes through the sliding groove 21 and is fixedly connected to the inner ring of the annular push plate 9.

[0031] When performing pressure testing, the annular push plate 9 moves upward and drives the mounting seat 14 and the pressure sensor 13 to move upward through the buffer spring piece 22 until the pressure sensor 13 abuts against the detection platform 12 above, and the pressure sensor 13 is pressed against the bottom of the detection platform 12 through the buffer spring piece 22. The pressure during the pouring of the tunnel lining concrete can be transmitted to the pressure sensor 13 through the detection platform 12. When pressure testing is not needed, the pressure sensor 13 is separated from the detection platform 12 by pulling down the annular push plate 9, which can also protect the pressure sensor 13.

[0032] The outer ring of the annular push plate 9 is rotatably mounted with a shift ring 24 , and two limit posts 25 are fixed at equal intervals along the circumference of the shift ring 24 below the shift ring 24 . When the shift ring 24 is rotated, the bottoms of the two limit posts 25 can abut against the upper surface of the support plate 15 .

[0033] When the thrust spring 23 pushes the annular push plate 9 into place, the annular push plate 9 is supported only by the thrust spring 23, which may easily cause the annular push plate 9 to shake downward due to vibration, thereby causing the buffer spring 22 and the mounting seat 14 to move downward, causing the pressure sensor 13 to separate from the detection table 12. Therefore, after the annular push plate 9 moves upward into place, the dial ring 24 is rotated to make the limiting pillar at the bottom of the dial ring 24 move to the upper surface of the support plate 15, and the annular push plate 9 can be limited by the limiting pillar to assist the thrust spring 23, thereby preventing the annular push plate 9 from moving downward during work. When the pressure detection is completed, the dial ring 24 is rotated again to make the limiting pillar separate from the support plate 15, and the annular push plate 9 can move up and down.

[0034] The locking mechanism 5 includes a support plate 15, an adjustment plate 16 and an adjustment seat 17. The adjustment seat 17 is fixed on the trolley panel 1. A strip groove 18 is provided on the adjustment seat 17. The adjustment plate 16 is slidably installed in the strip groove 18 and can be locked by a bolt 19. The support plate 15 is fixed on the adjustment plate 16. The sealing cylinder 6 is vertically fixed on the support plate 15. The strip groove 18 and the bolt 19 cooperate to arbitrarily adjust the position of the adjustment seat 17, so that the sealing cylinder 6 can be locked and fixed to the support plate 15 by the bolt 19 after moving into place, thereby preventing the sealing cylinder 6 from slipping during operation and improving the stability of the detection platform 12 during operation.

[0035] A telescopic pin head 20 is also installed on the side of the testing platform 12, and the inner wall of the sealing cylinder 6 is provided with a pin hole for accommodating the telescopic pin head 20. The upper surface of the telescopic pin head 20 is arranged horizontally, and the lower surface of the telescopic pin head 20 is a sloped surface. When the testing platform 12 moves downward, the telescopic pin head 20 can be pressed into the testing platform 12, so that the testing platform 12 can smoothly transmit pressure downward. When the pressure sensor 13 is pressed against the testing platform 12, the telescopic pin head 20 is completely inserted into the pin hole. When the telescopic pin head 20 is engaged with the pin hole, the upper surface of the testing platform 12 is flush with the upper surface of the sealing cylinder 6 and the trolley panel 1.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above are only preferred implementation methods of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A tunnel lining concrete pressure detection device, comprising a trolley panel (1), wherein the trolley panel (1) is provided with a detection hole (2), characterized in that: A positioning mechanism (3) and a pressure detection mechanism (4) are installed in the detection hole (2); the bottom of the positioning mechanism (3) is fixedly connected to the trolley panel (1) via a locking mechanism (5); The positioning mechanism (3) comprises a sealing cylinder (6), a wedge block (7), a push rod (8), an annular push plate (9) and a locking slider (10); the outer wall of the sealing cylinder (6) is slidably and sealingly connected to the detection hole (2); the outer wall of the sealing cylinder (6) is also provided with a receiving groove (11); the wedge block (7) is horizontally slidably installed in the receiving groove (11); the annular push plate (9) is slidably sleeved on the sealing cylinder (6); the push rod (8) passes through the bottom of the receiving groove (11) and is fixedly connected to the annular push plate (9); the locking slider (10) is The locking slider (10) is horizontally slidably mounted on the top of the push rod (8); when the wedge block (7) extends out of the receiving groove (11), the bottom of the wedge block (7) can block the top of the locking slider (10) to limit the push rod (8); when the wedge block (7) is completely received in the receiving groove (11), the annular push plate (9) can push the push rod (8) to move upward; when the push rod (8) moves upward, the inclined surface of the wedge block (7) can squeeze one end of the locking slider (10) out of the receiving groove (11) and abut against the inner wall of the detection hole (2); The pressure detection mechanism (4) comprises a detection platform (12), a pressure sensor (13) and a mounting seat (14); the detection platform (12) is slidably mounted on the top of the sealing cylinder (6) for contacting the tunnel lining concrete; the mounting seat (14) is mounted on the inner side of the sealing cylinder (6); the pressure sensor (13) is fixed on the mounting seat (14); and the pressure sensor (13) is used to detect the pressure of the tunnel lining concrete after abutting against the detection platform (12).

2. A tunnel lining concrete pressure detection device as claimed in claim 1, characterized in that: The locking mechanism (5) comprises a support plate (15), an adjustment plate (16) and an adjustment seat (17); the adjustment seat (17) is fixed on the trolley panel (1); a strip groove (18) is provided on the adjustment seat (17); the adjustment plate (16) is slidably mounted in the strip groove (18) and can be locked by means of a bolt (19); the support plate (15) is fixed on the adjustment plate (16); and the sealing cylinder (6) is vertically fixed on the support plate (15).

3. A tunnel lining concrete pressure detection device as claimed in claim 1, characterized in that: A telescopic pin head (20) is also installed on the side of the detection platform (12); the inner wall of the sealing cylinder (6) is provided with a pin hole for accommodating the telescopic pin head (20); the upper surface of the telescopic pin head (20) is arranged horizontally; the lower surface of the telescopic pin head (20) is a sloped surface; when the telescopic pin head (20) is engaged with the pin hole, the upper surface of the detection platform (12) is flush with the upper surface of the sealing cylinder (6) and the trolley panel (1); when the detection platform (12) moves downward, the telescopic pin head (20) can be pressed into the detection platform (12).

4. A tunnel lining concrete pressure detection device as claimed in claim 1, characterized in that: A slide groove (21) penetrating the seal cylinder (6) is provided on the side wall at the lower portion of the seal cylinder (6), and a buffer spring (22) is fixed to the edge of the mounting seat (14), and an end of the buffer spring (22) passes through the slide groove (21) and is fixedly connected to the inner ring of the annular push plate (9).

5. A tunnel lining concrete pressure detection device as claimed in claim 2, characterized in that: A thrust spring (23) is also installed between the annular push plate (9) and the support plate (15), and the thrust spring (23) is used to push the annular push plate (9) to move upwards.

6. A tunnel lining concrete pressure detection device as claimed in claim 2, characterized in that: A shifting ring (24) is rotatably mounted on the outer ring of the annular push plate (9), and two limit posts (25) are fixed at equal intervals along the circumference of the shifting ring (24) below the shifting ring (24). When the shifting ring (24) is rotated, the bottoms of the two limit posts (25) can abut against the upper surface of the support plate (15).

7. A tunnel lining concrete pressure detection device as claimed in claim 1, characterized in that: The bottom of the locking slide block (10) is provided with a bayonet (26), and the bottom of the receiving groove (11) is also fixed with a positioning block (27); when the locking slide block (10) moves downward to the positioning block (27), the positioning block (27) can be inserted into the bayonet (26) and push the locking slide block (10) to move horizontally into the receiving groove (11).

8. A tunnel lining concrete pressure detection device as claimed in claim 1, characterized in that: A reset spring (28) is also fixed between the wedge-shaped block (7) and the side wall of the receiving groove (11), and the reset spring (28) is used to push the wedge-shaped block (7) out of the receiving groove (11).

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