Telescopic portable hole detection device

Abstract

The utility model discloses a telescopic portable hole detection device, which belongs to the technical field of coal mining and comprises a fixing plate, a plurality of groups of folding rods are fixedly mounted on the top surface of the fixing plate, every two adjacent groups of folding rods are rotationally sleeved with each other, and laser-engraved scale marks are engraved on the outer wall of one group of folding rods close to the fixing plate. The outer wall of each set of folding rods is fixedly sleeved with a fixing structure used for fixing and limiting the unfolding state of the folding rods. A push rod is slidably mounted in the set of folding rods away from the fixing plate, a probe used for monitoring the condition in a drill hole in real time is fixedly mounted at the top end of the push rod, a clamping structure used for clamping and taking out drill hole rock debris is mounted outside the probe, and the clamping structure is fixedly connected with the top faces of the folding rods. The folding rod needs to be stretched to the proper length to meet the requirement for drilling of different depths, rapid limiting and unlocking of the folding rod are achieved in cooperation with a fixing structure, manual labor is reduced, and construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically a retractable and portable borehole probe device. Background Technology

[0002] Mines are highly hazardous to impact. To effectively reduce the stress in the surrounding rock and ensure safe production, blasting decompression operations must be carried out. According to standardized specifications, before blasting decompression, exploratory drilling must be conducted to ensure that the actual exploratory hole depth reaches the designed depth of the charging hole.

[0003] Chinese patent discloses an all-around geological detection device for mines (publication number CN222526280U). This patent includes: a support mechanism, a detection rod, and a detection mechanism. The support mechanism includes a sleeve and a three-jaw chuck, with the three-jaw chuck located outside the sleeve. The detection rod is inserted into the sleeve. The detection mechanism is located at the front end of the detection rod and includes a fixing tube and a detection component. The detection component is inserted into the front end of the fixing tube. The three-jaw chuck is unfolded and fixed at the opening. The detection component is located at the front end of the detection rod. The detection rod moves in and out of the sleeve, changing the depth of the detection component within the hole, and the detection component is used to detect the interior of the hole.

[0004] Therefore, based on the above search and combined with existing information, due to the complex environment, narrow space and frequent bends in mine roadways, it is not only inconvenient for workers to move around when carrying long-sized blasting rods, but also easy to bump into the roadway walls, posing a safety hazard. However, this patent uses a multi-section detachable blasting rod, which requires frequent disassembly in actual operation, resulting in wear at the component connection points, leading to a decrease in accuracy, affecting the accuracy of the borehole, and increasing maintenance costs. At the same time, it increases manual labor, reduces construction efficiency, and is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this invention is to provide a retractable and portable probe device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A retractable portable hole-probing device includes a fixed plate. Multiple sets of folding rods are fixedly installed on the top surface of the fixed plate, and each pair of adjacent folding rods are rotatably sleeved with each other. The outer wall of the set of folding rods closest to the fixed plate is engraved with laser-engraved scale lines to facilitate the viewing of hole depth and size. The outer wall of each set of folding rods is fixedly sleeved with a fixing structure for fixing and restricting the unfolded state of the folding rods.

[0008] A push rod is slidably installed inside a set of folding rods away from the fixed plate. A probe for real-time monitoring of the borehole is fixedly installed at the top of the push rod. A clamping structure for clamping and removing borehole cuttings is installed outside the probe, and the clamping structure is fixedly connected to the top surface of the folding rod.

[0009] As a further embodiment of this utility model, the fixing structure includes a fixing collar, and multiple fixing collars are provided and symmetrically and evenly distributed on the top outer wall of each group of folding rods. Two spring plates for limiting are fixedly installed in the inner cavity of each fixing collar. Multiple slots are opened on the outer wall of each group of folding rods, and the end of the spring plate away from the fixing collar is located in the slot, thereby restricting the folding rod from moving up and down and extending and retracting at will.

[0010] As a further improvement of this utility model, a positioning ring for auxiliary limiting is fixedly installed at the bottom end of the folding rod. The positioning ring limits the downward movement range of the folding rod. Through multi-level limiting, mechanical interference caused by excessive overlapping of the folding rod during the shrinking process can be effectively prevented.

[0011] As a further embodiment of this utility model, the clamping structure includes a base, which is fixedly installed on the top surface of the topmost set of folding rods. Inside the base, a gripper for clamping is rotatably installed via a pin. A push block for driving the gripper to rotate is fixedly sleeved on the outer wall of the push rod.

[0012] As a further embodiment of this utility model, the top end of the push block is rotatably connected to an auxiliary rod for assisting in controlling the opening and closing of the gripper via a pin, and the end of the auxiliary rod away from the push block is rotatably connected to the gripper via a pin.

[0013] As a further improvement of this utility model, the outer wall of the topmost set of folding rods is threaded with a threaded sleeve for protecting the gripper. By rotating and moving the threaded sleeve upward, it gradually covers the gripper, thus protecting it when it is not in use.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When using this utility model, the multi-segment nested folding rod extends to a suitable length during borehole drilling to meet the needs of different drilling depths. Combined with a fixing structure, it effectively prevents the folding rod from retracting due to operational vibrations, external forces, or other factors, ensuring the accuracy of borehole data. Furthermore, the folding rod can be quickly limited and unlocked using only spring plates, slots, and through-grooves, making it simple, fast, and efficient. This effectively improves the efficiency of device deployment and retraction, adapts to the needs of rapid use in different work sites, reduces manual labor, and improves construction efficiency.

[0016] 2. When this utility model is used, the clamping structure can work with the probe to penetrate deep into the borehole, accurately clamp and remove the drill cuttings, so that the operator can further judge the geological conditions at the borehole, providing more accurate information support for subsequent blasting and pressure relief operations, which helps to optimize the blasting plan and improve the effect and safety of blasting and pressure relief. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a retractable portable probe device.

[0018] Figure 2 This is a cross-sectional view of the internal structure of a retractable portable probe device.

[0019] Figure 3 This is an exploded view of the fixed structure in a retractable portable probe device.

[0020] Figure 4 This is a cross-sectional view of the clamping structure in a retractable portable probe device.

[0021] Figure 5 This is a detailed diagram of the clamping structure in a retractable portable probe device.

[0022] In the diagram: 1. Fixing plate; 2. Folding rod; 3. Push rod; 4. Probe; 501. Fixing collar; 502. Spring plate; 503. Slot; 504. Positioning shaft; 505. Through slot; 506. Positioning ring; 601. Base; 602. Gripper; 603. Push block; 604. Auxiliary rod; 605. Protective plate; 606. Threaded sleeve; 607. Serrated block; 608. Electric rod; 609. Rack; 610. Gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figure 1 , Figure 2A retractable portable borehole probe includes a fixed plate 1. Multiple sets of folding rods 2 are fixedly mounted on the top surface of the fixed plate 1, with each pair of adjacent sets of folding rods 2 rotatably nested within each other. The nested design between adjacent folding rods 2 ensures both smooth extension and retraction and the rigidity of the overall structure, enabling convenient and quick access and use in various work environments, thus improving work efficiency. The outer wall of the set of folding rods 2 closest to the fixed plate 1 is engraved with laser-engraved scale lines to facilitate viewing the depth and size of the borehole. After the probe head reaches the bottom of the borehole, the depth and size can be determined by referring to… The line can confirm the actual hole depth. The outer wall of each set of folding rods 2 is fixedly fitted with a fixing structure to fix and limit the unfolded state of the folding rods 2. Since the folding rods 2 need to be extended to a suitable length during the borehole exploration operation, the fixing structure can prevent the folding rods 2 from retracting due to factors such as operation vibration and external force contact, which would affect the accuracy of the borehole exploration. It can ensure that the folding rods 2 remain stable after unfolding. The borehole depth measurement is carried out by the scale line. The stable folding rods 2 make the scale line reading accurate, providing a reliable basis for subsequent key parameters such as the charging depth, and ensuring that the blasting and decompression operation proceeds as planned.

[0025] A push rod 3 is slidably installed inside a set of folding rods 2 away from the fixed plate 1. A probe 4 for real-time monitoring of the borehole is fixedly installed at the top of the push rod 3. A clamping structure for clamping and removing borehole cuttings is installed on the outside of the probe 4, and the clamping structure is fixedly connected to the top surface of the folding rod 2.

[0026] Specifically, the folding rod 2 is made of aluminum alloy, which is lightweight and corrosion-resistant. The scale lines have undergone special treatment, exhibiting excellent wear resistance and corrosion resistance, ensuring long-term readability even in humid and dusty mining environments. The probe 4 can monitor the borehole in real time, allowing operators to understand the internal conditions, such as any abnormalities or whether the borehole depth meets requirements. It can also be used with a clamping structure to remove borehole cuttings. By observing the state and composition of the cuttings, operators can further assess the geological conditions at the borehole, providing more accurate information support for subsequent blasting and decompression operations. This helps optimize blasting plans and improve the effectiveness and safety of blasting and decompression. The probe 4 uses a combination design of a three-axis accelerometer and a high-definition camera, which can simultaneously acquire the geometric parameters and internal images of the borehole, while also transmitting data information through a wireless transmission system.

[0027] Please see Figure 2 , Figure 3The fixing structure includes a fixing collar 501. Multiple fixing collars 501 are provided and symmetrically and evenly distributed on the top outer wall of each group of folding rods 2. Two spring plates 502 for limiting are fixedly installed in the inner cavity of each fixing collar 501. Multiple slots 503 are opened on the outer wall of each group of folding rods 2, and the end of the spring plate 502 away from the fixing collar 501 is located in the slot 503, thereby restricting the folding rod 2 from moving up and down and extending and retracting at will.

[0028] Specifically, each fixing collar 501 has a positioning shaft 504 for positioning spring sheet 502 fixedly connected to its inner cavity, and the spring sheet 502 is fixedly sleeved on the outer wall of the positioning shaft 504.

[0029] More specifically, each set of folding rods 2 has a through groove 505 near the outer wall of the spring plate 502, and the spring plate 502 can pass through the through groove 505 and accurately engage with the slot 503. At the same time, the outer walls of the through groove 505 and the slot 503 are chamfered to facilitate the easy insertion or removal of the spring plate 502, ensuring reliable locking and easy operation. When it is necessary to extend the folding rod 2, the operator only needs to rotate the folding rod 2 and use the chamfered edges of the through groove 505 and the slot 503 to smoothly squeeze out the spring plate 502 and retract it into the fixed collar 501. At the same time, it completes the preparation for the next limit. After the folding rod 2 moves to a suitable position that meets the work requirements, the folding rod 2 is rotated in the opposite direction. When the slot 503 and the through groove 505 are aligned, the spring plate 502 will release its elasticity instantly and re-insert into the corresponding slot 503, thereby efficiently and reliably achieving the re-limiting of the folding rod 2 and ensuring that the folding rod 2 remains in a stable extended state during the borehole operation.

[0030] A positioning ring 506 for auxiliary limiting is fixedly installed at the bottom end of the folding rod 2. The positioning ring 506 limits the downward movement range of the folding rod 2. Through the multi-level limiting method, the mechanical interference caused by excessive overlapping of the folding rod 2 during the shrinking process can be effectively prevented.

[0031] Specifically, there are multiple positioning rings 506. Except for the folding rod 2 that is directly connected to the fixing plate 1 at the bottom, each of the other folding rods 2 is equipped with a positioning ring 506, forming a graded limiting system. At the same time, in order to ensure that the folding rod 2 remains stably connected in the extended state, the outer diameter of each fixing collar 501 is equal to the outer diameter of the corresponding lower folding rod 2. This can ensure that the folding rod 2 can slide freely, and completely avoid the risk of slippage of the folding rod 2 due to excessive axial displacement. This effectively improves the structural reliability and operational safety of the folding rod 2 under complex working conditions, and ensures accurate limiting without affecting the smoothness of sliding.

[0032] Example 2: Please refer to Figure 2 , Figure 4 , Figure 5Based on embodiment 1, the clamping structure includes a base 601, which is fixedly installed on the top surface of the topmost set of folding rods 2. Inside the base 601, a gripper 602 for clamping is rotatably installed via a pin. The outer wall of the push rod 3 is fixedly fitted with a push block 603 that drives the gripper 602 to rotate.

[0033] Specifically, the base 601 has an active groove at its axis for moving the push block 603. The diameter of the fully extended gripper 602 in the active groove of the push block 603 is equal to the diameter of the topmost set of folding rods 2, which ensures that the gripper 602 can be extended normally and that the gripper 602 in the extended state will not obstruct the overall movement of the device.

[0034] The top of the push block 603 is rotatably connected to an auxiliary rod 604 for assisting in controlling the opening and closing of the gripper 602 via a pin. The end of the auxiliary rod 604 away from the push block 603 is rotatably connected to the gripper 602 via a pin.

[0035] Specifically, the gripper 602 and the auxiliary rod 604 are each provided with three rods in a three-pronged symmetrical layout. Each auxiliary rod 604 has a protective plate 605 fixedly connected to one side to protect the probe 4. When the gripper 602 retracts, the protective plate 605 gradually moves closer to each other along with the auxiliary rod 604, and finally closes to form a protective cavity covering the probe 4, thereby protecting the probe 4 and preventing rock debris from scratching or abrading it. At the same time, each protective plate 605 has an arc-shaped groove on the side near the probe 4. When the three protective plates 605 are combined, they form a round hole, ensuring that the protective plate 605 maintains an equidistant gap with the probe 4 when closed, providing sufficient protection without affecting the operation of the probe 4.

[0036] More specifically, each gripper 602 has a serrated block 607 on its inner wall, which can help fix and limit the rock cuttings to prevent them from loosening and falling off.

[0037] The outer wall of the topmost set of folding rods 2 is threaded with a threaded sleeve 606 for protecting the gripper 602. By rotating and moving the threaded sleeve 606 upward, it gradually covers the gripper 602 to protect it when it is not in use.

[0038] Specifically, the outer wall of the topmost set of folding rods 2 is provided with threaded protrusions, and the inner wall of the threaded sleeve 606 is provided with corresponding threaded grooves.

[0039] The bottom end of the push rod 3 is fixedly connected to an electric rod 608 for providing power, and the electric rod 608 is fixedly connected to the inside of the topmost set of folding rods 2. The outer wall of the push rod 3 is fixedly installed with a rack 609 for auxiliary limiting, and the inner wall of the topmost set of folding rods 2 is fixedly installed with a gear 610, and the gear 610 meshes with the rack 609. The gear 610 is used to limit the push rod 3 in the stopped state.

[0040] The working principle of this utility model is as follows:

[0041] First, place the fixing plate 1 in a suitable position. The operator rotates the folding rod 2 and uses the chamfered edges of the through groove 505 and slot 503 to squeeze out the spring plate 502, causing it to retract into the fixing collar 501, so that the folding rod 2 can be extended. After reaching the suitable position, rotate in the opposite direction and the spring plate 502 is reinserted into the slot 503 to achieve the limit and ensure that the folding rod 2 is stably extended.

[0042] After the device is deployed, the probe 4 is inserted into the borehole through the folding rod 2 and the push rod 3. The probe 4 monitors the situation inside the borehole in real time, checking for any abnormalities and whether the borehole depth meets the standard, providing operators with information on the internal condition of the borehole. In conjunction with the reference line on the outer wall of the folding rod 2 near the fixed plate 1, the depth and size of the hole are measured.

[0043] When rock cuttings appear in the borehole and need to be removed, the electric rod 608 pushes the push rod 3, causing the push block 603 on the outer wall of the push rod 3 to move in the movable groove at the axis of the base 601. The movement of the push block 603 drives the auxiliary rod 604, which in turn controls the opening and closing of the gripper 602. At the same time, the gripper 602 and the auxiliary rod 604 are arranged in a three-pronged symmetrical layout. The three grippers 602 can grab the rock cuttings, and the sawtooth block 607 on the inner wall is used to help fix and limit the position, so as to prevent the rock cuttings from loosening and falling off.

[0044] Meanwhile, during the movement of push rod 3, the rack 609 fixedly installed on its outer wall meshes with the gear 610. When the electric rod 608 pushes push rod 3 forward, the rack 609 drives the gear 610 to rotate. When probe 4 reaches the predetermined position, the electric rod 608 stops working. At this time, due to the meshing relationship between gear 610 and rack 609, gear 610 will limit push rod 3 in the stopped state, preventing push rod 3 from undergoing unnecessary displacement due to external vibration or other factors, and ensuring that probe 4 is stably in the designated position for monitoring the situation inside the borehole.

[0045] Furthermore, when the gripper 602 retracts, the protective plate 605 connected to it gradually approaches each other along with the auxiliary rod 604, eventually closing to form a protective cavity covering the probe 4. The arc-shaped groove on the side of the protective plate 605 near the probe 4 forms a round hole when they merge, maintaining an equidistant gap with the probe 4 to prevent rock debris from scratching or abrading the probe 4, while not affecting its operation.

[0046] After the final operation is completed, rotate the threaded sleeve 606 to move it downwards, releasing the protection of the gripper 602. Then reverse the extension steps of the folding rod 2 to retract it, making it easy to carry and store, thus achieving convenient storage of the device.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A retractable portable probe device, comprising a fixing plate (1), characterized in that, The top surface of the fixed plate (1) is fixedly installed with multiple sets of folding rods (2), and each pair of adjacent folding rods (2) are rotated and sleeved with each other. The outer wall of the set of folding rods (2) close to the fixed plate (1) is engraved with laser-engraved scale lines to facilitate the viewing of hole depth and size. The outer wall of each set of folding rods (2) is fixedly sleeved with a fixing structure for fixing and restricting the unfolded state of the folding rods (2). A push rod (3) is slidably installed inside a set of folding rods (2) away from the fixed plate (1). A probe (4) for real-time monitoring of the borehole is fixedly installed at the top of the push rod (3). A clamping structure for clamping and removing borehole cuttings is installed on the outside of the probe (4), and the clamping structure is fixedly connected to the top surface of the folding rod (2).

2. The retractable portable probe device according to claim 1, characterized in that, The fixing structure includes a fixing collar (501). Multiple fixing collars (501) are provided and symmetrically and evenly distributed on the top outer wall of each group of folding rods (2). Two spring plates (502) for limiting are fixedly installed in the inner cavity of each fixing collar (501). Multiple slots (503) are opened on the outer wall of each group of folding rods (2), and the end of the spring plate (502) away from the fixing collar (501) is located in the slot (503), thereby restricting the folding rod (2) from moving up and down and extending and retracting at will.

3. The retractable portable probe device according to claim 2, characterized in that, The bottom end of the folding rod (2) is fixedly equipped with a positioning ring (506) for auxiliary positioning, which limits the downward movement range of the folding rod (2).

4. The retractable portable probe device according to claim 1, characterized in that, The clamping structure includes a base (601), which is fixedly installed on the top surface of the topmost set of folding rods (2). Inside the base (601), a gripper (602) for clamping is rotatably installed via a pin. The outer wall of the push rod (3) is fixedly fitted with a push block (603) that drives the gripper (602) to rotate.

5. A retractable portable probe device according to claim 4, characterized in that, The top end of the push block (603) is rotatably connected by a pin to an auxiliary rod (604) for assisting in controlling the opening and closing of the gripper (602). The end of the auxiliary rod (604) away from the push block (603) is rotatably connected to the gripper (602) by a pin.

6. A retractable portable probe device according to claim 4, characterized in that, The outer wall of the topmost set of folding rods (2) is threaded with a threaded sleeve (606) for protecting the gripper (602).

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