A deformation displacement monitoring device for a tailings filling retaining wall

Abstract

The present invention relates to the technical field of retaining wall deformation and displacement monitoring, and discloses a deformation and displacement monitoring device for a tailings backfill retaining wall, which includes a first anchor rod and a housing. The first anchor rod is buried in the retaining wall, and the housing is installed on the ground. A displacement sensor and a differential lever mechanism are provided on the housing, and a pull rod is slidably arranged on the displacement sensor; the differential lever mechanism includes a second anchor rod slidably arranged on the housing, a first rotating rod is rotatably arranged on the housing, a first lever is arranged on the first rotating rod, the left end of the first lever is connected to the second anchor rod, and the right end of the first lever is connected to the pull rod. This deformation and displacement monitoring device for a tailings backfill retaining wall uses a differential lever to amplify the displacement of the anchor rod, improves the measurement accuracy of the displacement transmitter, cancels the displacement error of the wall caused by temperature changes through a temperature self-compensating bimetallic structure, and installs a multi-stage alarm mechanism with a self-locking function to give an alarm when the deformation of the retaining wall is severe.

Description

Technical Field

[0001] The present invention relates to the technical field of retaining wall deformation displacement monitoring, and particularly to a deformation displacement monitoring device for a tailings filling retaining wall. Background Art

[0002] A retaining wall is a structure that supports the subgrade fill or hillside soil mass and prevents the fill or soil mass from deforming and becoming unstable. A tailings filling retaining wall is a retaining wall formed by filling with unclassified and dewatered full-size tailings as filling aggregate, which is uniformly mixed with a certain proportion of cementitious material and water.

[0003] In order to ensure the stability and safety of the retaining wall, monitoring its deformation displacement can timely detect abnormal deformations of the retaining wall, provide a basis for taking corresponding reinforcement or repair measures, and thus avoid possible safety accidents.

[0004] A displacement transmitter can be used to monitor the deformation of the tailings filling retaining wall, but conventional displacement transmitters have low sensitivity, are difficult to capture small deformations, lack environmental (such as temperature) compensation capabilities, and are prone to false alarms due to the thermal expansion and contraction of the wall. Summary of the Invention

[0005] The present invention provides a deformation displacement monitoring device for a tailings filling retaining wall, which has the beneficial effects of adopting a differential lever to amplify the displacement of the anchor rod, improving the measurement accuracy of the displacement transmitter, offsetting the displacement error of the wall caused by temperature changes through a temperature self-compensating bimetallic structure, and installing a multi-stage alarm mechanism with a self-locking function to alarm when the deformation of the retaining wall is severe, solving the problems in the prior art mentioned in the above background art that conventional displacement transmitters have low sensitivity, are difficult to capture small deformations, lack temperature compensation capabilities, and are prone to false alarms due to the thermal expansion and contraction of the wall.

[0006] The present invention provides the following technical solution: A deformation displacement monitoring device for a tailings filling retaining wall, including a first anchor rod and a housing. The first anchor rod is embedded in the retaining wall, the housing is installed on the ground, a displacement sensor and a differential lever mechanism are arranged on the housing, and a pull rod is slidably arranged on the displacement sensor.

[0007] The differential lever mechanism includes a second anchor rod slidably arranged on the housing, a first rotating rod is rotatably arranged on the housing, a first lever is arranged on the first rotating rod, the left end of the first lever is connected to the second anchor rod, the right end of the first lever is connected to the pull rod, and the distance between the first rotating rod and the left end of the first lever is less than the distance between the first rotating rod and the right end of the first lever.

[0008] It further includes a temperature difference compensation mechanism. The temperature difference compensation mechanism includes a third chute opened on the first anchor rod. The second anchor rod is slidably connected in the third chute. Two metal plates are arranged on the second anchor rod, and the coefficient of thermal expansion of the metal plate on the left is greater than that of the metal plate on the right.

[0009] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: a first connection seat is arranged on the second anchor rod, a first chute is opened on the first connection seat, a second connection seat is arranged on the pull rod, a second chute is opened on the second connection seat, and first connection shafts are arranged at both ends of the first lever. The two first connection shafts are respectively slidably connected in the first chute and the second chute;

[0010] The differential lever mechanism is used to realize the displacement of the pull rod driven by the first anchor rod with a transmission ratio greater than one, and the temperature difference compensation mechanism is used to offset the deformation of the first anchor rod caused by temperature change.

[0011] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: an adjusting rod is slidably arranged on the second anchor rod, both metal plates are connected to the adjusting rod, and a first knob is threadedly installed on the second anchor rod. The adjusting rod is rotatably connected to the first knob.

[0012] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: it further includes a first-level alarm mechanism and a first delay transmission mechanism. The first-level alarm mechanism includes a first sound and light alarm arranged on the housing, a first button is arranged on the first sound and light alarm, and a first trigger rod is slidably arranged in the housing;

[0013] The first delay transmission mechanism is used to realize the transmission between the pull rod and the first trigger rod, and trigger the first button through the displacement of the first trigger rod.

[0014] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: the first delay transmission mechanism includes a third connection seat arranged on the pull rod and a fourth connection seat arranged on the first trigger rod. A second rotating rod is rotatably arranged in the housing, a second lever is arranged on the second rotating rod, and the third connection seat and the fourth connection seat are respectively connected to both ends of the second lever.

[0015] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall according to the present invention, wherein: the first delay transmission mechanism further includes a first connecting rod, and both ends of the first connecting rod are provided with second connecting shafts. A fourth sliding groove is formed on the left side of the second lever. The second connecting shaft on the left is rotatably connected to the third connecting seat, and the second connecting shaft on the right is slidably connected to the fourth sliding groove;

[0016] A fifth sliding groove is formed on the fourth connecting seat. A third connecting shaft is provided on the right side of the second lever, and the third connecting shaft is slidably connected to the fifth sliding groove.

[0017] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall according to the present invention, wherein: it further includes a secondary alarm mechanism and a second delay transmission mechanism. The secondary alarm mechanism includes a second sound and light alarm arranged on the housing. A second button is arranged on the second sound and light alarm, and a second trigger rod is slidably arranged in the housing;

[0018] The second delay transmission mechanism is used to realize the transmission between the first trigger rod and the second trigger rod, and trigger the second button through the displacement of the second trigger rod;

[0019] The structure of the second delay transmission mechanism is the same as that of the first delay transmission mechanism. The second delay transmission mechanism includes a fifth connecting seat arranged on the second trigger rod and a sixth connecting seat arranged on the first trigger rod. A third rotating rod is rotatably arranged in the housing, and a third lever is arranged on the third rotating rod. The fifth connecting seat and the sixth connecting seat are respectively connected to both ends of the third lever.

[0020] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall according to the present invention, wherein: two first locking mechanisms are symmetrically arranged in the housing, and the two first locking mechanisms are respectively connected to the second rotating rod and the third rotating rod;

[0021] The first locking mechanism includes a clockwork spring. The third rotating rod is elastically connected to the inner wall of the housing through the clockwork spring. A first sliding seat is slidably arranged on the housing. A ratchet wheel is arranged on the third rotating rod. A pawl is rotatably arranged on the first sliding seat. The pawl meshes with the ratchet wheel, and a spring piece is further arranged on the first sliding seat;

[0022] A second knob is threadedly installed on the housing, and the second knob is rotatably connected to the first sliding seat.

[0023] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: a second locking mechanism is further provided on the housing, the second locking mechanism includes a limiting block arranged on the third rotating rod, a second sliding seat is slidably arranged on the housing, a limiting groove is formed on the second sliding seat, and the limiting block is slidably connected in the limiting groove;

[0024] A third knob is threadedly installed on the housing, and the third knob is connected to the second sliding seat.

[0025] As an alternative solution of the deformation displacement monitoring device for the tailings filling retaining wall of the present invention, wherein: the housing includes a first mounting seat, a second mounting seat and a third mounting seat, the displacement sensor and the differential lever mechanism are arranged on the first mounting seat, the primary alarm mechanism and the first delay transmission mechanism are arranged on the second mounting seat, and the secondary alarm mechanism and the second delay transmission mechanism are arranged on the third mounting seat;

[0026] The second mounting seat is slidably connected to the first mounting seat, the third mounting seat is slidably connected to the second mounting seat, support legs are arranged on both the first mounting seat and the second mounting seat, a fourth knob is threadedly installed on the first mounting seat, the fourth knob is rotatably connected to the second mounting seat, a fifth knob is threadedly installed on the second mounting seat, and the fifth knob is rotatably connected to the third mounting seat.

[0027] The present invention has the following beneficial effects:

[0028] 1. For the deformation displacement monitoring device of the tailings filling retaining wall, the displacement of the anchor rod is amplified by the differential lever, improving the measurement accuracy of the displacement transmitter, so that the minute deformation displacement of the retaining wall can also be accurately measured.

[0029] 2. For the deformation displacement monitoring device of the tailings filling retaining wall, the false displacement of the anchor rod caused by the thermal expansion and contraction of the internal environment temperature of the retaining wall can be reversely offset by the bending of a group of bimetallic plates due to thermal expansion and contraction. And the initial bending degree of the bimetallic plate can be adjusted to control the environmental temperature change amount required for the automatic compensation trigger of the temperature difference, so as to adapt to different working environments.

[0030] 3. For the deformation displacement monitoring device of the tailings filling retaining wall, a multi-stage alarm device is also provided, and each stage of the alarm device uses the displacement of the anchor rod for delayed triggering. When the displacement is within the first-level low-risk range, the alarm is not triggered. When the displacement reaches the second-level risk range, the first group of alarms is triggered. When the displacement further increases, the first group and the second group of alarms will be triggered, and so on. And a self-locking device is set for the alarm mechanism to avoid misresetting.

[0031] 4. When the risk level of the displacement amount of the tailings filling retaining wall deformation displacement monitoring device is relatively high, in addition to issuing an alarm and waiting for the staff to handle it, a second self-locking structure is set up, which can lock the displacement of the anchor rod, provide a certain reaction force, and play a role in resisting the continuous deformation of the wall to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the whole invention.

[0033] Figure 2 It is a schematic cross-sectional structural diagram of the whole invention.

[0034] Figure 3 It is a schematic cross-sectional structural diagram of the second mounting seat in the invention.

[0035] Figure 4 It is an exploded structural diagram of the housing in the invention.

[0036] Figure 5 It is a partial exploded structural diagram of the invention.

[0037] Figure 6 For the present invention Figure 5 The partial enlarged structural diagram at A in it.

[0038] Figure 7 It is a schematic diagram of the first working state of the invention.

[0039] Figure 8 It is a schematic diagram of the second working state of the invention.

[0040] Figure 9 It is a schematic diagram of the third working state of the invention.

[0041] Figure 10 It is a schematic diagram of the fourth working state of the invention.

[0042] Figure 11 It is a schematic diagram of the fifth working state of the invention.

[0043] In the figure: 100, the first anchor bolt; 200, the housing; 210, the first mounting seat; 220, the second mounting seat; 230, the third mounting seat; 240, the support leg; 250, the fourth knob; 260, the fifth knob; 300, the displacement sensor; 310, the pull rod; 400, the differential lever mechanism; 410, the second anchor bolt; 420, the first rotating rod; 430, the first lever; 440, the first connecting seat; 450, the first sliding groove; 460, the second connecting seat; 470, the second sliding groove; 480, the first connecting shaft; 500, the temperature difference compensation mechanism; 510, the third sliding groove; 520, the metal plate; 530, the adjusting rod; 540, the first knob; 600, the first-level alarm mechanism; 610, the first sound and light alarm; 620, the first button; 630, the first trigger rod; 700, the first delay transmission mechanism; 710, the third connecting seat; 720, the fourth connecting seat; 730, the second rotating rod; 740, the second lever; 750, the first connecting rod; 760, the second connecting shaft; 770, the fourth sliding groove; 780, the fifth sliding groove; 790, the third connecting shaft; 800, the second-level alarm mechanism; 810, the second sound and light alarm; 820, the second button; 830, the second trigger rod; 900, the second delay transmission mechanism; 910, the fifth connecting seat; 920, the sixth connecting seat; 930, the third rotating rod; 940, the third lever; 950, the second connecting rod; 960, the fourth connecting shaft; 970, the sixth sliding groove; 980, the seventh sliding groove; 990, the fifth connecting shaft; 1000, the first locking mechanism; 1010, the clockwork spring; 1020, the first sliding seat; 1030, the ratchet wheel; 1040, the ratchet pawl; 1050, the spring piece; 1060, the second knob; 1100, the second locking mechanism; 1110, the limiting block; 1120, the second sliding seat; 1130, the limiting groove; 1140, the third knob. Specific implementation mode

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0045] Embodiment 1, please refer to Figures 1-5 , a deformation displacement monitoring device for a tailings filling retaining wall, including a first anchor bolt 100 and a housing 200. The first anchor bolt 100 is buried in the retaining wall, the housing 200 is installed on the ground, a displacement sensor 300 and a differential lever mechanism 400 are arranged on the housing 200, and a pull rod 310 is slidably arranged on the displacement sensor 300.

[0046] The differential lever mechanism 400 includes a second anchor rod 410 slidably disposed on the housing 200. A first rotating rod 420 is rotatably disposed on the housing 200. A first lever 430 is disposed on the first rotating rod 420. The left end of the first lever 430 is connected to the second anchor rod 410, and the right end of the first lever 430 is connected to the pull rod 310. Moreover, the distance between the first rotating rod 420 and the left end of the first lever 430 is less than the distance between the first rotating rod 420 and the right end of the first lever 430.

[0047] It further includes a temperature difference compensation mechanism 500. The temperature difference compensation mechanism 500 includes a third chute 510 formed on the first anchor rod 100. The second anchor rod 410 is slidably connected in the third chute 510. Two metal plates 520 are disposed on the second anchor rod 410, and the coefficient of thermal expansion of the metal plate 520 on the left side is greater than that of the metal plate 520 on the right side.

[0048] A first connection seat 440 is disposed on the second anchor rod 410. A first chute 450 is formed on the first connection seat 440. A second connection seat 460 is disposed on the pull rod 310. A second chute 470 is formed on the second connection seat 460. First connection shafts 480 are disposed at both ends of the first lever 430, and the two first connection shafts 480 are respectively slidably connected in the first chute 450 and the second chute 470.

[0049] The differential lever mechanism 400 is used to realize the displacement of the pull rod 310 driven by the first anchor rod 100 with a transmission ratio greater than one. The temperature difference compensation mechanism 500 is used to offset the deformation of the first anchor rod 100 caused by temperature changes.

[0050] In this embodiment: As Figure 7 shown, the first anchor rod 100 can be deeply buried in the tailings filling retaining wall by means of drilling or the like. The first anchor rod 100 will displace with the deformation of the retaining wall. For example, when it is set that the retaining wall deforms and displaces to the right, the first anchor rod 100 displaces to the right. The housing 200 is supported on the ground by a plurality of support legs 240. The housing 200 is composed of three sections, which are a first mounting seat 210, a second mounting seat 220, and a third mounting seat 230 from left to right. The displacement sensor 300 installed in the first mounting seat 210 can be a pull rod type displacement sensor. The measurement module inside the displacement sensor 300 can convert the distance of the displacement of the pull rod 310 in the up and down direction into an electrical signal, and can be connected to a remote monitoring system for digital display.

[0051] In order to improve the sensitivity of the displacement sensor 300 measurement, it is necessary to amplify the displacement of the first anchor rod 100 in proportion. Specifically, when the first anchor rod 100 moves to the right, it drives the second anchor rod 410 and the first connecting seat 440 to move to the right synchronously. The rightward movement of the first connecting seat 440 causes the first lever 430 to rotate counterclockwise based on the first rotating rod 420. The first connecting shaft 480 on the left side of the first lever 430 slides down along the first chute 450. At the same time, the first connecting shaft 480 on the right side of the first lever 430 slides to the left along the second chute 470 and drives the pull rod 310 to move upward. Since the first lever 430 is a differential lever and the first rotating rod 420 is close to the left end of the first lever 430, after the first lever 430 amplifies a rated multiple, the displacement sensor 300 measures the displacement of the pull rod 310, and then converts it according to the fixed multiple between the displacement of the first anchor rod 100 and the displacement of the pull rod 310.

[0052] In addition, it is also considered that the first anchor rod 100 is usually made of metal, which is stronger, but it will be affected by the thermal expansion and contraction of the wall. For example, when the temperature of the wall is high, the first anchor rod 100 expands due to heat and will generate a false displacement to the right, rather than the wall actually deforming with a rightward displacement. At this time, the temperature difference compensation mechanism 500 can offset this error value.

[0053] Specifically, the second anchor rod 410 and the first anchor rod 100 are not fixedly connected, but are connected through a bimetallic plate composed of two metal plates 520. The bimetallic plate is composed of two metals with significantly different coefficients of thermal expansion, such as copper with a high CTE and steel with a low CTE, which are compounded by rolling or welding. When the temperature rises, the metal plate 520 with a high coefficient of thermal expansion on the left forces the bimetallic plate to bend to the right until it abuts against the inner wall of the first anchor rod 100 and then further bends, pulling the second anchor rod 410 closer to the first anchor rod 100, that is, causing the second anchor rod 410 to move a certain distance to the left relative to the first anchor rod 100, thereby offsetting the false displacement in the right direction generated by the thermal expansion of the first anchor rod 100.

[0054] Similarly, when the first anchor rod 100 contracts due to cold, a false displacement to the left is generated. At this time, the bimetallic plate bends to the left, causing the second anchor rod 410 to move to the right.

[0055] Embodiment 2. This embodiment is an improved description based on Embodiment 1. Specifically, please refer to Figures 1-5 , an adjusting rod 530 is slidably arranged on the second anchor rod 410. Both metal plates 520 are connected to the adjusting rod 530. A first knob 540 is threadedly installed on the second anchor rod 410. The adjusting rod 530 is rotatably connected to the first knob 540.

[0056] In this embodiment, in order to adapt to different working environments, an adjustable working state is also set for the bimetallic plate. By turning the first knob 540 clockwise or counterclockwise, the adjusting rod 530 can be driven to move left and right. When the adjusting rod 530 moves to the left, the degree of leftward bending of the bimetallic plate increases, and a higher ambient temperature is required to make the bimetallic plate bend to the right and press against the inner wall of the first anchor rod 100 and further pull the second anchor rod 410 relatively to the left. Similarly, when the adjusting rod 530 moves to the right, only a relatively small increase in ambient temperature is required to make the second anchor rod 410 be pulled relatively to the left.

[0057] Embodiment 3 is an improved description based on Embodiment 1. Specifically, please refer to Figures 1-11 , and further includes a first-level alarm mechanism 600 and a first delay transmission mechanism 700. The first-level alarm mechanism 600 includes a first sound and light alarm 610 arranged on the housing 200. A first button 620 is arranged on the first sound and light alarm 610. A first trigger rod 630 is slidably arranged in the housing 200.

[0058] The first delay transmission mechanism 700 is used to realize the transmission between the pull rod 310 and the first trigger rod 630, and trigger the first button 620 through the displacement of the first trigger rod 630.

[0059] The first delay transmission mechanism 700 includes a third connection seat 710 arranged on the pull rod 310 and a fourth connection seat 720 arranged on the first trigger rod 630. A second rotating rod 730 is rotatably arranged in the housing 200. A second lever 740 is arranged on the second rotating rod 730. The third connection seat 710 and the fourth connection seat 720 are respectively connected to both ends of the second lever 740.

[0060] The first delay transmission mechanism 700 further includes a first connecting rod 750. Both ends of the first connecting rod 750 are provided with second connecting shafts 760. A fourth sliding groove 770 is opened on the left side of the second lever 740. The second connecting shaft 760 on the left is rotatably connected to the third connection seat 710, and the second connecting shaft 760 on the right is slidably connected in the fourth sliding groove 770.

[0061] A fifth sliding groove 780 is opened on the fourth connection seat 720. A third connecting shaft 790 is arranged on the right side of the second lever 740. The third connecting shaft 790 is slidably connected in the fifth sliding groove 780.

[0062] It further includes a second-level alarm mechanism 800 and a second delay transmission mechanism 900. The second-level alarm mechanism 800 includes a second sound and light alarm 810 arranged on the housing 200. A second button 820 is arranged on the second sound and light alarm 810. A second trigger rod 830 is slidably arranged in the housing 200.

[0063] The second delay transmission mechanism 900 is used to realize the transmission between the first trigger rod 630 and the second trigger rod 830, and trigger the second button 820 through the displacement of the second trigger rod 830.

[0064] The structure of the second delay transmission mechanism 900 is the same as that of the first delay transmission mechanism 700. The second delay transmission mechanism 900 includes a fifth connection seat 910 arranged on the second trigger rod 830 and a sixth connection seat 920 arranged on the first trigger rod 630. A third rotating rod 930 is rotatably arranged in the housing 200, and a third lever 940 is arranged on the third rotating rod 930. The fifth connection seat 910 and the sixth connection seat 920 are respectively connected to both ends of the third lever 940.

[0065] The second delay transmission mechanism 900 further includes a second connecting rod 950. Both ends of the second connecting rod 950 are provided with fourth connecting shafts 960. A sixth chute 970 is opened on the right side of the third lever 940. The fourth connecting shaft 960 on the right side is rotatably connected to the fifth connection seat 910, and the fourth connecting shaft 960 on the left side is slidably connected in the sixth chute 970.

[0066] A seventh chute 980 is opened on the sixth connection seat 920. A fifth connecting shaft 990 is arranged on the left side of the third lever 940. The fifth connecting shaft 990 is slidably connected in the seventh chute 980.

[0067] In this embodiment: An active alarm function is also designed for the device. When the measured displacement of the retaining wall is less than a certain magnitude, neither the first-level alarm mechanism 600 nor the second-level alarm mechanism 800 will be triggered. When the displacement reaches the range of the first-level alarm mechanism 600, the first-level alarm mechanism 600 triggers an audible and visual alarm. When the displacement reaches the range of the second-level alarm mechanism 800, both the first-level alarm mechanism 600 and the second-level alarm mechanism 800 trigger an audible and visual alarm.

[0068] Specifically, when the first trigger rod 630 moves downward to press against the first button 620, it will trigger the operation of the first audible and visual alarm 610. When the second trigger rod 830 moves upward to press against the second button 820, it will trigger the operation of the second audible and visual alarm 810. Due to the need for hierarchical triggering, a delay transmission needs to be carried out sequentially between the pull rod 310, the first trigger rod 630, and the second trigger rod 830.

[0069] Reference Figures 7-10 , first when the displacement of the first anchor rod 100 is within the first-level range, such as Figure 8As shown, the draw bar 310 and the third connecting seat 710 move upward. At this time, the second lever 740 is maintained in the horizontal normal state by the elastic force of the clockwork spring 1010. When the draw bar 310 and the third connecting seat 710 start to move upward, they will not immediately drive the second lever 740 to rotate. In the first-level range, when the third connecting seat 710 moves upward, it drives the first connecting rod 750 to rotate clockwise based on the second connecting shaft 760 on the left. At this time, the second connecting shaft 760 on the right moves leftward along the fourth chute 770 and does not drive the second lever 740 to rotate. That is, neither the first trigger lever 630 nor the second trigger lever 830 displaces, and the first-level alarm mechanism 600 and the second-level alarm mechanism 800 do not operate.

[0070] When the displacement of the first anchor bolt 100 is in the second-level range, as Figure 9 shown, when the third connecting seat 710 moves upward, it drives the first connecting rod 750 to continue rotating clockwise based on the second connecting shaft 760 on the left. Until the second connecting shaft 760 on the right moves to the leftmost side of the fourth chute 770, when the draw bar 310 and the third connecting seat 710 continue to move upward, they will drive the second lever 740 to rotate clockwise based on the second lever 730. At this time, the third connecting shaft 790 will move leftward along the fifth chute 780 and push the fifth chute 780 and the first trigger lever 630 downward. The downward movement of the first trigger lever 630 and the sixth connecting seat 920 causes the third lever 940 to rotate counterclockwise based on the third lever 930. At this time, the second connecting rod 950 rotates clockwise based on the fourth connecting shaft 960 on the right, and the fourth connecting shaft 960 on the left moves rightward along the sixth chute 970 and does not drive the fifth connecting seat 910 and the second trigger lever 830 to move downward. That is, the first trigger lever 630 moves downward, the second trigger lever 830 does not displace, the first-level alarm mechanism 600 operates, and the second-level alarm mechanism 800 does not operate.

[0071] When the displacement of the first anchor bolt 100 is in the third-level range, as Figure 10 shown, the second connecting rod 950 continues to rotate clockwise based on the fourth connecting shaft 960 on the right. Until the fourth connecting shaft 960 on the left reaches the rightmost side of the sixth chute 970, the third lever 940 continues to rotate counterclockwise based on the third lever 930, driving the fifth connecting seat 910 and the second trigger lever 830 to move upward. At this time, both the first-level alarm mechanism 600 and the second-level alarm mechanism 800 operate.

[0072] Embodiment 4 is an improved description based on Embodiment 3. Specifically, please refer to Figures 1-6 , two first locking mechanisms 1000 are symmetrically arranged in the housing 200, and the two first locking mechanisms 1000 are respectively connected to the second lever 730 and the third lever 930.

[0073] The first locking mechanism 1000 includes a clockwork spring 1010. The third rotating rod 930 is elastically connected to the inner wall of the housing 200 through the clockwork spring 1010. A first sliding seat 1020 is slidably arranged on the housing 200. A ratchet wheel 1030 is arranged on the third rotating rod 930. A pawl 1040 is rotatably arranged on the first sliding seat 1020. The pawl 1040 meshes with the ratchet wheel 1030. A spring piece 1050 is also arranged on the first sliding seat 1020.

[0074] A second knob 1060 is threadedly installed on the housing 200. The second knob 1060 is rotatably connected to the first sliding seat 1020.

[0075] A second locking mechanism 1100 is also arranged on the housing 200. The second locking mechanism 1100 includes a limiting block 1110 arranged on the third rotating rod 930. A second sliding seat 1120 is slidably arranged on the housing 200. A limiting groove 1130 is formed on the second sliding seat 1120. The limiting block 1110 is slidably connected in the limiting groove 1130.

[0076] A third knob 1140 is threadedly installed on the housing 200. The third knob 1140 is connected to the second sliding seat 1120.

[0077] In this embodiment: In order to prevent accidental reset, a first locking mechanism 1000 is added to the second rotating rod 730 and the third rotating rod 930. The tooth directions of the ratchet wheels 1030 and the pawls 1040 in the two first locking mechanisms 1000 are opposite. Taking the first locking mechanism 1000 on the right side as an example, when the third rotating rod 930 rotates counterclockwise, the ratchet wheel 1030 and the third rotating rod 930 rotate counterclockwise together. At this time, the tooth direction of the ratchet wheel 1030 and the pawl 1040 is in the same direction, and the ratchet wheel 1030 can rotate counterclockwise. The spring piece 1050 presses the pawl 1040 towards the ratchet wheel 1030, and the ratchet wheel 1030 will drive the pawl 1040 to continuously swing.

[0078] When the first anchor rod 100 is displaced and reset to the left for some reason, the third rotating rod 930 has a tendency to rotate clockwise and reset under the action of the reset elastic force of the clockwork spring 1010, but the ratchet wheel 1030 is blocked by the pawl 1040 and cannot rotate clockwise. Therefore, both the first trigger rod 630 and the third rotating rod 930 cannot be reset in the reverse direction. The first sound and light alarm 610 and the second sound and light alarm 810 keep operating and can only be manually released by the staff. The manual release method is to turn the second knob 1060 to drive the first sliding seat 1020 and the pawl 1040 to move backward, so that the ratchet wheel 1030 is disengaged from the pawl 1040. At this time, the first trigger rod 630 or the third rotating rod 930 will be reset under the elastic force of the clockwork spring 1010.

[0079] At this time, when the deformation displacement of the first anchor rod 100 reaches the third-level range, the risk is relatively high. At this time, in addition to waiting for the staff to receive the alarm for handling, the second locking mechanism 1100 also plays a role in resisting the further rightward movement of the wall.

[0080] Specifically, when the limiting block 1110 touches the inner wall of the limiting groove 1130 as it rotates counterclockwise along with the third rotating rod 930, the third rotating rod 930 can no longer rotate counterclockwise, and a leftward resistance force is applied to the first anchor rod 100 in the reverse direction. Moreover, the upper limit of the rightward displacement of the first anchor rod 100 can also be adjusted. Just rotate the third knob 1140 to drive the second sliding seat 1120 to rotate and change the position of the limiting groove 1130.

[0081] In addition, as Figure 11 shown, when the second rotating rod 730 is locked and cannot rotate counterclockwise to reset, if the first anchor rod 100 moves leftward and causes the pull rod 310 and the third connecting seat 710 to descend, there will be no hindrance. At this time, the second connecting shaft 760 on the right side of the first connecting rod 750 will slide rightward along the fourth sliding groove 770.

[0082] Embodiment 5 is an improved description based on Embodiment 4. Specifically, please refer to Figures 1-4 , the housing 200 includes a first mounting seat 210, a second mounting seat 220, and a third mounting seat 230. The displacement sensor 300 and the differential lever mechanism 400 are arranged on the first mounting seat 210, the first-level alarm mechanism 600 and the first delay transmission mechanism 700 are arranged on the second mounting seat 220, and the second-level alarm mechanism 800 and the second delay transmission mechanism 900 are arranged on the third mounting seat 230.

[0083] The second mounting seat 220 is slidably connected to the first mounting seat 210, the third mounting seat 230 is slidably connected to the second mounting seat 220. Support legs 240 are arranged on both the first mounting seat 210 and the second mounting seat 220. A fourth knob 250 is threadedly mounted on the first mounting seat 210, the fourth knob 250 is rotatably connected to the second mounting seat 220. A fifth knob 260 is threadedly mounted on the second mounting seat 220, and the fifth knob 260 is rotatably connected to the third mounting seat 230.

[0084] In this embodiment: The three-level range of the displacement of the first anchor rod 100 can also be adjusted. By rotating the fourth knob 250, the second mounting seat 220 can be driven to move leftward or rightward relative to the first mounting seat 210, so as to adjust the initial position of the second connecting shaft 760 on the right side of the first connecting rod 750 in the fourth sliding groove 770. By rotating the fifth knob 260, the initial position of the fourth connecting shaft 960 on the left side of the second connecting rod 950 in the sixth sliding groove 970 can be adjusted.

[0085] It should be noted that in this text, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0086] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A deformation displacement monitoring device for a tailings filling retaining wall, comprising a first anchor rod (100) and a housing (200), characterized in that: The first anchor rod (100) is embedded in the retaining wall, the housing (200) is installed on the ground, a displacement sensor (300) and a differential lever mechanism (400) are provided on the housing (200), and a pull rod (310) is slidably arranged on the displacement sensor (300); The differential lever mechanism (400) includes a second anchor rod (410) slidably arranged on the housing (200), a first rotating rod (420) is rotatably arranged on the housing (200), a first lever (430) is arranged on the first rotating rod (420), the left end of the first lever (430) is connected to the second anchor rod (410), the right end of the first lever (430) is connected to the pull rod (310), and the distance between the first rotating rod (420) and the left end of the first lever (430) is less than the distance between the first rotating rod (420) and the right end of the first lever (430); It further includes a temperature difference compensation mechanism (500), the temperature difference compensation mechanism (500) includes a third chute (510) opened on the first anchor rod (100), the second anchor rod (410) is slidably connected in the third chute (510), two metal plates (520) are arranged on the second anchor rod (410), and the coefficient of thermal expansion of the metal plate (520) on the left side is greater than that of the metal plate (520) on the right side; A first connecting seat (440) is arranged on the second anchor rod (410), a first chute (450) is opened on the first connecting seat (440), a second connecting seat (460) is arranged on the pull rod (310), a second chute (470) is opened on the second connecting seat (460), and first connecting shafts (480) are arranged at both ends of the first lever (430), and the two first connecting shafts (480) are respectively slidably connected in the first chute (450) and the second chute (470); The differential lever mechanism (400) is used to realize the displacement of the pull rod (310) driven by the first anchor rod (100) with a transmission ratio greater than one, and the temperature difference compensation mechanism (500) is used to offset the deformation of the first anchor rod (100) caused by temperature change.

2. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 1, characterized in that: An adjusting rod (530) is slidably arranged on the second anchor rod (410), both of the two metal plates (520) are connected to the adjusting rod (530), and a first knob (540) is threadedly installed on the second anchor rod (410), and the adjusting rod (530) is rotatably connected to the first knob (540).

3. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 1, wherein: It further includes a first-level alarm mechanism (600) and a first delay transmission mechanism (700), the first-level alarm mechanism (600) includes a first sound and light alarm (610) arranged on the housing (200), a first button (620) is arranged on the first sound and light alarm (610), and a first trigger rod (630) is slidably arranged in the housing (200); The first delay transmission mechanism (700) is used to realize the transmission between the pull rod (310) and the first trigger rod (630), and trigger the first button (620) through the displacement of the first trigger rod (630).

4. The deformation displacement monitoring device for a tailings filling retaining wall according to claim 3, characterized in that: The first delay transmission mechanism (700) includes a third connection seat (710) arranged on the pull rod (310) and a fourth connection seat (720) arranged on the first trigger rod (630). A second rotating rod (730) is rotatably arranged in the housing (200), and a second lever (740) is arranged on the second rotating rod (730). The third connection seat (710) and the fourth connection seat (720) are respectively connected to both ends of the second lever (740).

5. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 4, wherein: The first delay transmission mechanism (700) further includes a first connecting rod (750). Both ends of the first connecting rod (750) are provided with second connecting shafts (760). A fourth sliding groove (770) is formed on the left side of the second lever (740). The second connecting shaft (760) on the left side is rotatably connected to the third connection seat (710), and the second connecting shaft (760) on the right side is slidably connected in the fourth sliding groove (770). A fifth sliding groove (780) is formed on the fourth connection seat (720). A third connecting shaft (790) is arranged on the right side of the second lever (740), and the third connecting shaft (790) is slidably connected in the fifth sliding groove (780).

6. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 4, characterized in that: It further includes a secondary alarm mechanism (800) and a second delay transmission mechanism (900). The secondary alarm mechanism (800) includes a second sound and light alarm (810) arranged on the housing (200). A second button (820) is arranged on the second sound and light alarm (810). A second trigger rod (830) is slidably arranged in the housing (200). The second delay transmission mechanism (900) is used to realize the transmission between the first trigger rod (630) and the second trigger rod (830), and trigger the second button (820) through the displacement of the second trigger rod (830). The structure of the second delay transmission mechanism (900) is the same as that of the first delay transmission mechanism (700). The second delay transmission mechanism (900) includes a fifth connection seat (910) arranged on the second trigger rod (830) and a sixth connection seat (920) arranged on the first trigger rod (630). A third rotating rod (930) is rotatably arranged in the housing (200), and a third lever (940) is arranged on the third rotating rod (930). The fifth connection seat (910) and the sixth connection seat (920) are respectively connected to both ends of the third lever (940).

7. A deformation displacement monitoring device for a tailings filling retaining wall according to claim 6, characterized in that: Two first locking mechanisms (1000) are symmetrically arranged in the housing (200), and the two first locking mechanisms (1000) are respectively connected to the second rotating rod (730) and the third rotating rod (930). The first locking mechanism (1000) includes a clockwork spring (1010). The third rotating rod (930) is elastically connected to the inner wall of the housing (200) through the clockwork spring (1010). A first sliding seat (1020) is slidably arranged on the housing (200). A ratchet wheel (1030) is arranged on the third rotating rod (930). A pawl (1040) is rotatably arranged on the first sliding seat (1020). The pawl (1040) engages with the ratchet wheel (1030). A spring piece (1050) is also arranged on the first sliding seat (1020). A second knob (1060) is threadedly installed on the housing (200). The second knob (1060) is rotatably connected to the first sliding seat (1020).

8. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 6, characterized in that: A second locking mechanism (1100) is also arranged on the housing (200). The second locking mechanism (1100) includes a limiting block (1110) arranged on the third rotating rod (930). A second sliding seat (1120) is slidably arranged on the housing (200). A limiting groove (1130) is formed on the second sliding seat (1120). The limiting block (1110) is slidably connected in the limiting groove (1130). A third knob (1140) is threadedly installed on the housing (200). The third knob (1140) is connected to the second sliding seat (1120).

9. The deformation displacement monitoring device for the tailings filling retaining wall according to claim 6, characterized in that: The housing (200) includes a first mounting seat (210), a second mounting seat (220) and a third mounting seat (230). The displacement sensor (300) and the differential lever mechanism (400) are arranged on the first mounting seat (210). The primary alarm mechanism (600) and the first delay transmission mechanism (700) are arranged on the second mounting seat (220). The secondary alarm mechanism (800) and the second delay transmission mechanism (900) are arranged on the third mounting seat (230). The second mounting seat (220) is slidably connected to the first mounting seat (210). The third mounting seat (230) is slidably connected to the second mounting seat (220). Support legs (240) are arranged on both the first mounting seat (210) and the second mounting seat (220). A fourth knob (250) is threadedly installed on the first mounting seat (210). The fourth knob (250) is rotatably connected to the second mounting seat (220). A fifth knob (260) is threadedly installed on the second mounting seat (220). The fifth knob (260) is rotatably connected to the third mounting seat (230).

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