Robot and method for detecting stability of hole wall of pile hole and toxic gas in hole

Abstract

The invention relates to the technical field of auxiliary devices of detection equipment, in particular to a robot and method for detecting the stability of the wall of a pile hole and poisonous gas in the hole, and the robot can be automatically clamped according to the size of the pile hole and automatically ascends and descends for detection after being clamped. The method for detecting the soil texture of the poison gas in the deep pit comprises the following steps: according to the types of harmful gases possibly existing, oxygen, methane, hydrogen sulfide, carbon monoxide and the like, detecting the soil texture of the poison gas in the deep pit, and detecting the soil texture of the poison gas in the deep pit. A multi-parameter gas detector capable of detecting the gases is selected, so that all operators are properly trained to know how to correctly use the detector and deal with emergency situations; and determining that the sensor works normally and is not damaged or blocked, and placing the gas detector at different heights of the pile hole, generally performing detection once from the bottom to the top at a certain distance so as to obtain comprehensive data.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment attachments, and in particular to a pile hole wall stability and hole poisonous gas detection robot and method. Background Art

[0002] Building pile holes refer to circular or nearly circular deep holes dug in construction projects for the purpose of building pile foundations. Pile holes are an important part of building foundations, and they ensure the stability and durability of buildings by transferring loads to deeper, more stable strata. Pile holes can be used for many types of pile foundation structures, such as bored piles, manually dug piles, etc. During the excavation process, especially deep underground or in strata containing organic matter, toxic gases such as methane, hydrogen sulfide, carbon monoxide, etc. may be produced. These gases may not only pose a threat to the life and safety of construction workers, but may also cause explosions or fires. Many countries and regions have strict laws and regulations requiring air quality testing before underground operations to ensure the health and safety of workers. The most common existing pile hole gas detection equipment is gas detectors; gas detectors are a type of equipment used to detect pile hole gas during construction, and they have been widely used in the field of construction; When using the existing gas detector, first select a multi-parameter gas detector that can detect harmful gases such as oxygen, methane, hydrogen sulfide, carbon monoxide, etc. according to the types of harmful gases that may exist, and place the gas detector at different heights in the pile hole. Usually, a test is performed at a certain distance from the bottom to the top to obtain comprehensive data, record the gas concentration at each test point, and compare it with the safety threshold. It was found in the use of the existing gas detector that the existing gas detector requires manual operation and cannot be automatically raised and lowered for fixed-point detection, which makes the detection process more dangerous and causes an imbalance in the recording points, thereby resulting in low working efficiency of the equipment. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a pile hole wall stability and toxic gas detection robot and method, which can be automatically clamped according to the size of the pile hole, and automatically lifted and lowered for detection after clamping, so as to improve the automation level of the equipment.

[0004] 1. A method for detecting soil quality of deep pit poisonous gas of the present invention comprises: S1: Based on the types of harmful gases that may be present, choose a multi-parameter gas detector that can detect oxygen, methane, hydrogen sulfide, carbon monoxide, etc., and ensure that all operators have received appropriate training on how to use the detector correctly and respond to emergencies; S2: Confirm that the sensor is working properly and is not damaged or blocked. The gas detector is placed at different heights of the pile hole. Usually, the detection is carried out at a certain distance from the bottom to the top to obtain comprehensive data. During this process, the start-up equipment is supported according to the size of the pile hole, supported externally, and fixed inside the pile hole; S3: Start the equipment to lift and lower. For pile holes with greater depth, a pump-suction gas detector with a long tube can be used to insert the probe into the pile hole for sampling. During this process, start the equipment to extend and retract the probe to take soil samples and detect gas concentration.

[0005] Preferably, the detection points of the pile hole are set at 1-3m / section.

[0006] Preferably, the soil sampling of pile holes is 1%-10% of the total number of piles.

[0007] 4. A deep pit toxic gas soil detection robot, suitable for the detection method as described in any one of claims 1-3, comprising a mounting plate and a detection device, the detection device is evenly mounted on the mounting plate, the detection device also comprises a supporting device, a clamping mechanism, a lifting device, a gas extraction device and a sampling device, the connecting end of the supporting device is connected to the top of the mounting plate, a first mounting seat is arranged on the supporting device, the clamping mechanism passes through the first mounting seat and is rotatably connected to the supporting device, a second mounting seat is arranged on the mounting plate, the lifting mechanism passes through the second mounting seat and is rotatably connected to the mounting plate, the connecting end of the gas extraction device is connected to the output end of the lifting mechanism, and the sampling device is evenly mounted on the gas extraction device.

[0008] Preferably, the supporting device also includes an annular sleeve, a pad, a first electric push rod, a push plate, a joint, a lifting ring, a support arm and a support rod. The bottom end of the annular sleeve is connected to the top end of the mounting plate, a working chamber is arranged through the annular sleeve, the pad and the working chamber are fixedly mounted, the connecting end of the first electric push rod is connected to the top end of the pad, the connecting end of the push plate is connected to the output end of the first electric push rod, the connecting end of the lifting ring is connected to the top end of the push plate, a third mounting seat is arranged on the push plate and the support arm, two groups of connecting ends of the joint respectively pass through the corresponding third mounting seat and are rotatably connected to the corresponding support arm and the push plate, a fourth mounting seat is arranged on the annular sleeve, the connecting end of the support arm is rotatably connected to the annular sleeve through the fourth mounting seat, a long groove is arranged in the support arm, and multiple groups of support rods respectively pass through the corresponding long grooves and are slidably connected to the corresponding support arms.

[0009] Preferably, the clamping mechanism also includes connecting rods, inner supports, springs and movable connecting blocks. The three groups of inner supports respectively pass through the corresponding first mounting seats and are rotatably connected to the working chamber. The inner supports and the push plates are each provided with a fifth mounting seat. The connecting ends of the three groups of connecting rods respectively pass through the corresponding fifth mounting seats and are rotatably connected to the corresponding inner supports and the push plates. The three groups of inner supports are each provided with a first sliding groove. The three groups of movable connecting blocks respectively pass through the corresponding first sliding grooves and are slidably connected to the corresponding inner supports. The three groups of springs are respectively fixedly mounted on the corresponding movable connecting blocks.

[0010] Preferably, the lifting mechanism also includes a winch, a steel cable, a hanging plate, a positioning plate, a driving motor, a belt, a driving wheel and a driven wheel. The connecting end of the positioning plate is connected to the connecting end of the mounting plate, the connecting end of the driving motor is connected to the connecting end of the positioning plate, a positioning hole is provided on the positioning plate, the output end of the driving motor passes through the positioning hole and is connected to the connecting end of the driving wheel, the winch passes through the second mounting seat and is rotatably connected to the mounting plate, the connecting end of the winch passes through the second mounting seat and is connected to the connecting end of the driven wheel, belt grooves are provided on the driving wheel and the driven wheel, the belt passes through the belt grooves and is fixedly mounted on the driving wheel and the driven wheel, the steel cable is evenly installed on the winch, and the output end of the steel cable is connected to the connecting end of the hanging plate.

[0011] Preferably, the gas extraction device also includes a motor, a tripod and a gas detector. A through hole is provided in the hanging plate, the connecting end of the motor passes through the through hole and the hanging plate fixing set, the connecting end of the tripod is connected to the connecting end of the motor, a groove is provided on the tripod, the hanging plate passes through the groove and is slidably connected to the tripod, and the connecting end of the gas detector is connected to the connecting end of the tripod.

[0012] Preferably, the sampling device also includes an adjusting rod, a second electric push rod, a top block, a third electric push rod, a sampling needle and an adjusting ring. The adjusting ring is rotatably connected to the hanging plate. An adjusting seat is provided on the tripod. The adjusting rod passes through the adjusting seat and is rotatably connected to the tripod. The connecting end of the top block is hinged to the adjusting rod. Positioning seats are provided on the top block and the adjusting ring. The connecting end and the output end of the second electric push rod pass through the corresponding positioning seats and are rotatably connected to the top block and the adjusting ring respectively. The connecting ends of the two groups of third electric push rods are connected to the connecting end of the tripod, and the connecting ends of the two groups of sampling needles are respectively connected to the output ends of the corresponding third electric push rods.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the device performs fixed-point detection by lifting the gas detection device and performing fixed-point detection on the pile hole, thereby improving the detection accuracy and quality of the device; (2) The lifting and lowering are controlled by electric power, so that the equipment can be operated and recorded automatically, avoiding unnecessary safety problems and dangers such as inhalation of dangerous gases caused by manual operation, thereby ensuring the safety of equipment and operation; (3) By means of internal support and external fixation, the clamping stability of the equipment is provided, so that the equipment can be stably raised and lowered in the pile hole, thereby providing operational stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the connection structure between the mounting plate and the winch of the present invention; Figure 3 It is a schematic diagram of the connection structure between the annular sleeve and the first electric push rod of the present invention; Figure 4 It is a schematic diagram of the connection structure of the hanging plate and the tripod of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the annular sleeve of the present invention; Markings in the accompanying drawings: 1, mounting plate; 201, first mounting seat; 202, second mounting seat; 301, annular sleeve; 302, pad; 303, first electric push rod; 304, push plate; 305, joint; 306, lifting ring; 307, support arm; 308, support rod; 309, working chamber; 310, third mounting seat; 311, fourth mounting seat; 312, long groove; 401, connecting rod; 402, inner support; 403, spring; 404, movable connecting block; 405, fifth mounting seat; 406, first slide groove; 50 1. Winch; 502. Steel cable; 503. Hanging plate; 504. Positioning plate; 505. Driving motor; 506. Belt; 507. Driving wheel; 508. Driven wheel; 509. Positioning hole; 510. Belt groove; 601. Motor; 602. Tripod; 603. Gas detector; 604. Through hole; 605. Groove; 701. Adjusting rod; 702. Second electric push rod; 703. Top block; 704. Adjusting ring; 705. Third electric push rod; 706. Sampling needle; 707. Adjusting seat; 708. Positioning seat. DETAILED DESCRIPTION

[0015] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] Embodiment: A pile hole wall stability and hole poisonous gas detection robot and method of the present invention also includes: S1: Based on the types of harmful gases that may be present, choose a multi-parameter gas detector that can detect oxygen, methane, hydrogen sulfide, carbon monoxide, etc., and ensure that all operators have received appropriate training on how to use the detector correctly and respond to emergencies; S2: Confirm that the sensor is working properly and is not damaged or blocked. The gas detector is placed at different heights of the pile hole. Usually, the detection is carried out at a certain distance from the bottom to the top to obtain comprehensive data. During this process, the start-up equipment is supported according to the size of the pile hole, supported externally, and fixed inside the pile hole; S3: Start the equipment to lift and lower. For pile holes with greater depth, a pump-suction gas detector with a long tube can be used to insert the probe into the pile hole for sampling. During this process, start the equipment to extend and retract the probe to take soil samples and detect gas concentration.

[0017] As a preferred embodiment of the above, a pile hole wall stability and hole poisonous gas detection robot and method of the present invention also include: S1: During the operation of the equipment, the first electric push rod is first started to extend and retract in the annular sleeve, and the first electric push rod is supported by the pad so that it can be pushed stably. During this process, the push plate is pushed by the first electric push rod to make it rise and fall, and the support arm connected to it is driven to rise and fall during the lifting process. During the connection between the push plate and the support arm, the central connection is hinged, and the support arm is given a flexible rotation space through the joint so that it does not have a rotation dead angle; S2: In this process, the support arm is limited by the mounting seat on the annular sleeve, so that it rotates orderly on the mounting seat, and is unfolded or stored by rotation. After unfolding, the corresponding support rod is slid to extend it in the corresponding support arm, so as to extend the diameter, so that it can be extended larger to adapt to pile holes of different sizes; S3: During the hoisting of the annular sleeve, the equipment is hoisted by using lifting rings to reduce the cost and difficulty of equipment transportation.

[0018] As a preferred embodiment of the above, a pile hole wall stability and hole poisonous gas detection robot and method of the present invention also include: S1: When the equipment is clamped, the first electric push rod is started for sliding lifting, and the connecting rods hinged thereto slide in the same direction. Through the same-direction sliding of the connecting rods, the inner support on the annular sleeve is pulled to make it rotate and support in the pile hole; S2: After supporting, the movable connection block connected thereto slides in the first slide groove, and the inner diameter is adjusted by sliding, and the reaction force of the spring is cooperated to perform work support; S3: After the equipment is used, the first electric push rod is started to retract, and the inner support and the support arm are rotated to fold and buckle, so as to effectively utilize the space.

[0019] As a preferred embodiment of the above, a pile hole wall stability and hole poisonous gas detection robot and method of the present invention also include: S1: During the detection of the pile hole, the driving motor is started, the driving motor is fixed by a positioning plate, and its output end is connected to the driving wheel, and the driving wheel drives the driven wheel to rotate in the operating mode, and the winch rotates; S2: Place gas detectors at different heights in the pile hole, usually from the bottom to the top, and conduct tests at certain intervals to obtain comprehensive data, record the gas concentration at each test point, and compare it with the safety threshold; S3: Gas monitoring should be carried out continuously during excavation, especially in areas with poor ventilation or complex geological structures. Once the gas concentration is found to be close to or exceeds the safety limit, the operation should be stopped immediately and appropriate ventilation measures should be taken. S4: The image perception function can be added as needed. The camera can be used to collect images around the deep hole to evaluate the type and degree of damage of the rock and soil on the hole wall. The perception function of soil temperature, humidity and soil hardness can be added to collect the temperature and humidity of the side wall of the deep hole. At the same time, the hardness of the rock and soil on the hole wall can be measured by a pressure probe. The stability of the hole wall can be comprehensively judged based on the image, temperature, humidity and soil hardness. The safety of the gas in the hole can be judged based on the toxic gas sensing device.

[0020] As a preferred embodiment of the above, a pile hole wall stability and hole poisonous gas detection robot and method of the present invention also include: S1: During the gas detection process, the gas detector is driven down by the hanging plate to take samples. For shallow pile holes, a detection point can be set every 1-2 meters. For pile holes of medium depth, it is recommended to set a detection point every 2-3 meters. For deep pile holes, it may be necessary to set detection points more densely, such as every 1-2 meters, especially in areas where the concentration of harmful gases is expected to vary greatly; S2: If the geological structure is complex and there are different types of soil or rock layers, testing should be carried out at each different layer to ensure that all potential risk areas are covered. In this process, soil testing is required. During the testing process, the motor is started to drive the tripod to rotate. The position of the sampling needle can be adjusted by rotating the tripod to facilitate sampling at all positions on the surface of the pile hole; S3: In this process, the second electric push rod is started to adjust the angle of the top block and the adjusting rod connected thereto. After the adjustment, the top block is driven to adaptively fix the surface wall of the pile hole. After fixation, the third electric push rod is started to drive the sampling needle to be inserted into the soil of the pile hole, and sampling is performed by insertion.

[0021] The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

[0022] The “first”, “second” and “third” in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for detecting the stability of pile hole wall and poisonous gas in the hole, characterized in that: include: S1: Based on the types of harmful gases that may be present, choose a multi-parameter gas detector that can detect oxygen, methane, hydrogen sulfide, carbon monoxide, etc., and ensure that all operators have received appropriate training on how to use the detector correctly and respond to emergencies; S2: Confirm that the sensor is working properly and is not damaged or blocked. The gas detector is placed at different heights of the pile hole. Usually, the detection is carried out at a certain distance from the bottom to the top to obtain comprehensive data. During this process, the start-up equipment is supported according to the size of the pile hole, supported externally, and fixed inside the pile hole; S3: Start the equipment to lift and lower. For pile holes with greater depth, a pump-suction gas detector with a long tube can be used to insert the probe into the pile hole for sampling. During this process, start the equipment to extend and retract the probe to take soil samples and detect gas concentration.

2. A pile hole wall stability and hole poisonous gas detection method as claimed in claim 1, characterized in that: It also includes setting the detection points of the pile holes to 1-3m / section.

3. A pile hole wall stability and hole poisonous gas detection method as claimed in claim 2, characterized in that: It also includes soil sampling of pile holes for 1%-10% of the total number of piles.

4. A pile hole wall stability and toxic gas detection robot, suitable for the detection method according to any one of claims 1 to 3, comprising a mounting plate (1) and a detection device, wherein the detection device is evenly mounted on the mounting plate (1); characterized in that: The detection device further comprises a supporting device, a clamping mechanism, a lifting device, a gas extraction device and a sampling device; the connecting end of the supporting device is connected to the top end of the mounting plate (1); a first mounting seat (201) is provided on the supporting device; the clamping mechanism passes through the first mounting seat (201) and is rotatably connected to the supporting device; a second mounting seat (202) is provided on the mounting plate (1); the lifting mechanism passes through the second mounting seat (202) and is rotatably connected to the mounting plate (1); the connecting end of the gas extraction device is connected to the output end of the lifting mechanism; and the sampling device is evenly mounted on the gas extraction device.

5. A pile hole wall stability and hole poisonous gas detection robot as claimed in claim 4, characterized in that: The supporting device further comprises an annular sleeve (301), a pad (302), a first electric push rod (303), a push plate (304), a joint (305), a lifting ring (306), a supporting arm (307) and a supporting rod (308); the bottom end of the annular sleeve (301) is connected to the top end of the mounting plate (1); a working chamber (309) is provided through the annular sleeve (301); the pad (302) and the working chamber (309) are fixedly mounted; the connecting end of the first electric push rod (303) is connected to the top end of the pad (302); the connecting end of the push plate (304) is connected to the output end of the first electric push rod (303); the connecting end of the lifting ring (306) and the push plate The push plate (304) is connected to the top of the support arm (304), and a third mounting seat (310) is provided on both the push plate (304) and the support arm (307). The two groups of connecting ends of the joint (305) respectively pass through the corresponding third mounting seats (310) and are rotatably connected to the corresponding support arm (307) and the push plate (304). The annular sleeve (301) is provided with a fourth mounting seat (311). The connecting end of the support arm (307) is rotatably connected to the annular sleeve (301) through the fourth mounting seat (311). The support arm (307) is provided with a long slot (312). The plurality of groups of support rods (308) respectively pass through the corresponding long slots (312) and are slidably connected to the corresponding support arms (307).

6. A pile hole wall stability and hole poisonous gas detection robot as claimed in claim 5, characterized in that: The clamping mechanism also includes a connecting rod (401), an inner support (402), a spring (403) and a movable connecting block (404); the three groups of inner supports (402) respectively pass through the corresponding first mounting seats (201) and are rotatably connected to the working chamber (309); the inner supports (402) and the push plate (304) are each provided with a fifth mounting seat (405); the connecting ends of the three groups of connecting rods (401) respectively pass through the corresponding fifth mounting seats (405) and are rotatably connected to the corresponding inner supports (402) and the push plate (304); the three groups of inner supports (402) are each provided with a first sliding groove (406); the three groups of movable connecting blocks (404) respectively pass through the corresponding first sliding groove (406) and are slidably connected to the corresponding inner supports (402); and the three groups of springs (403) are respectively fixedly mounted on the corresponding movable connecting blocks (404).

7. A pile hole wall stability and hole poisonous gas detection robot as claimed in claim 6, characterized in that: The lifting mechanism further comprises a winch (501), a steel cable (502), a hanging plate (503), a positioning plate (504), a driving motor (505), a belt (506), a driving wheel (507) and a driven wheel (508); a connecting end of the positioning plate (504) is connected to a connecting end of the mounting plate (1); a connecting end of the driving motor (505) is connected to a connecting end of the positioning plate (504); a positioning hole (509) is provided on the positioning plate (504); an output end of the driving motor (505) passes through the positioning hole (509) and is connected to a connecting end of the driving wheel (507); Then, the winch (501) passes through the second mounting seat (202) and is rotatably connected to the mounting plate (1); the connection end of the winch (501) passes through the second mounting seat (202) and is connected to the connection end of the driven wheel (508); a belt groove (510) is provided on the driving wheel (507) and the driven wheel (508); the belt (506) passes through the belt groove (510) and is fixedly mounted on the driving wheel (507) and the driven wheel (508); the steel cable (502) is evenly mounted on the winch (501); and the output end of the steel cable (502) is connected to the connection end of the suspension plate (503).

8. A pile hole wall stability and hole poisonous gas detection robot as claimed in claim 7, characterized in that: The gas extraction device also includes a motor (601), a tripod (602) and a gas detector (603). A through hole (604) is provided in the hanging plate (503). The connecting end of the motor (601) passes through the through hole (604) and is fixedly mounted on the hanging plate (503). The connecting end of the tripod (602) is connected to the connecting end of the motor (601). A groove (605) is provided on the tripod (602). The hanging plate (503) passes through the groove (605) and is slidably connected to the tripod (602). The connecting end of the gas detector (603) is connected to the connecting end of the tripod (602).

9. A pile hole wall stability and hole poisonous gas detection robot as claimed in claim 8, characterized in that: The sampling device further comprises an adjusting rod (701), a second electric push rod (702), a top block (703), a third electric push rod (705), a sampling needle (706) and an adjusting ring (704); the adjusting ring (704) and the hanging plate (503) are rotatably connected; an adjusting seat (707) is provided on the tripod (602); the adjusting rod (701) passes through the adjusting seat (707) and is rotatably connected to the tripod (602); the connecting end of the top block (703) and the adjusting rod (701) are The top block (703) and the adjusting ring (704) are hinged, and a positioning seat (708) is provided on each of the top block (703) and the adjusting ring (704). The connecting end and the output end of the second electric push rod (702) respectively pass through the corresponding positioning seat (708) and are rotatably connected to the top block (703) and the adjusting ring (704). The connecting ends of the two groups of third electric push rods (705) are both connected to the connecting ends of the tripod (602), and the connecting ends of the two groups of sampling needles (706) are respectively connected to the output ends of the corresponding third electric push rods (705).

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