A portable vertical ball wind shielding device for centering mine underground surveying instruments

Abstract

The application discloses a centering portable vertical ball wind shielding device for mine underground surveying instruments, and belongs to the mine surveying field.The wind shielding device comprises a shell, a first light-transmitting plate fixedly installed on the shell, a second light-transmitting plate slidingly installed on the shell, and a clamping mechanism fixedly installed in the shell and used for fixing a laser collimator.The clamping mechanism comprises an adjusting rod fixedly installed in the shell, two symmetrically-distributed sliding rods slidingly installed on the adjusting rod, and two clamping plates fixedly installed at the ends of the two sliding rods and away from the adjusting rod and used for clamping the laser collimator.The wind shielding device rigidly fixes the equipment by the clamping plates, avoids the loosening problem caused by elastic fixing, improves the stability of equipment installation, effectively avoids the slippage displacement, and improves the measuring precision.

Description

Technical Field

[0001] This application relates to the field of mine well measurement technology, specifically a portable plumb bob windbreak device for centering underground mine measuring instruments. Background Technology

[0002] In coal mines, control points and centerline points are located at the top of the roadway. The measurement instruments are aligned using a suspended plumb bob. The accuracy of the instruments at each station significantly impacts the measurement of horizontal angles and distances. However, underground roadways experience varying degrees of wind, causing the suspended plumb bob to sway, thus affecting the speed and accuracy of the measuring instruments. Currently, windbreaks for the plumb bob alignment are often achieved using windproof cloths and curtains, but these methods are ineffective at points where wind flows intersect. Using laser alignment devices is also problematic due to the high elevation of the points and the dim lighting conditions underground, making it difficult to accurately determine the center of the measurement point. Furthermore, it's impossible to fix the measuring equipment in place, and any misalignment can affect the measurement results. Additionally, existing windbreak devices are inconvenient for operators.

[0003] Chinese utility model patent CN214096056U discloses a portable plumb bob windproof device for centering underground measuring instruments in mines. It uses a sliding rod and spring that work in conjunction with a sleeve to slide on the surface of the sliding rod. The sleeve drives a clamping plate to move, thus fixing the equipment inside the housing and preventing the equipment from shifting position when the housing falls. Anti-slip pads, a first glass plate, and a second glass plate improve the light transmission of the equipment inside the housing and also increase friction between the equipment and the housing, thereby improving the stability of the equipment inside. However, in actual use, the device uses springs, sleeves, and clamping plates to elastically hold centering devices such as laser alignment devices. In windy environments underground, this can cause shaking. The shaking can cause the internal springs to loosen, making it impossible to firmly fix the centering device and affecting measurement accuracy.

[0004] Therefore, this application provides a portable plumb bob windbreak device for centering underground measuring instruments in mines to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a portable plumb bob windbreak device for centering underground measuring instruments in mines, aiming to solve the problems mentioned in the background art, such as poor stability of existing windbreak devices when fixing centering equipment, which leads to reduced measurement accuracy.

[0006] To achieve the above objectives, this application provides the following technical solution: a portable plumb bob windbreak device for centering underground measuring instruments in mines, comprising a housing, a first light-transmitting plate fixedly mounted on the housing, a second light-transmitting plate slidably mounted on the housing, and a clamping mechanism fixedly mounted inside the housing for fixing a laser alignment device.

[0007] The clamping mechanism includes an adjusting rod fixedly installed inside the housing, two symmetrically distributed sliding rods slidably mounted on the adjusting rod, and two clamping plates for clamping the laser pointer fixedly mounted on the ends of the two sliding rods away from the adjusting rod;

[0008] The adjusting rod is positioned differently from the second light-transmitting plate. In use, the user opens the housing by pulling the second light-transmitting plate upwards, places the equipment to be used at the center of the bottom of the housing, and electrically connects the required wires through the top of the housing to the equipment. The distance between the two clamps on the adjusting rod is adjusted to secure the equipment between them. Then, the second light-transmitting plate is pulled down to close the housing, and the equipment is ready for use. The external traction rope is then secured to the top of the housing. After securing, the housing is released into the mine shaft for measurement. The clamps provide rigid fixation of the equipment, preventing loosening that can occur with elastic fixation, thus improving the stability of the equipment installation, effectively preventing slippage and displacement, and improving measurement accuracy.

[0009] Preferably, the adjusting rod has a sliding groove, and a bidirectional lead screw is rotatably installed in the sliding groove. Two sliding rods are screwed onto the bidirectional lead screw. One end of the bidirectional lead screw passes through the first light-transmitting plate, and a knob is fixedly installed on the end of the bidirectional lead screw located outside the first light-transmitting plate.

[0010] Preferably, to improve stability, the clamping plates are arranged in a V-shape, with two clamping plates symmetrically distributed. Each clamping plate has a first anti-slip piece fixedly installed on the inner sidewall of the V-shape, which can clamp different devices and improve the range of applications.

[0011] Preferably, in order to improve stability, a second anti-slip plate is fixedly installed at the center of the first light-transmitting plate on the bottom of the housing. The second anti-slip plate is located at the center of the two clamping plates, thereby making the clamping plates more stable when holding the centering device.

[0012] Preferably, to facilitate light transmission, the second anti-slip sheet is provided with a light-transmitting hole, which is located at the center of the bottom of the housing, allowing for centered illumination from the first light-transmitting plate on the side wall of the housing. This provides a variety of options and expands the applicability.

[0013] Preferably, to improve explosion-proof performance, the first and second light-transmitting plates are made of polycarbonate sheets, with stainless steel mesh embedded within them, further enhancing the explosion-proof effect of the polycarbonate sheets, thereby adapting to the underground working environment and extending the service life of the equipment.

[0014] The windproof device allows the user to open the housing by pulling up the second light-transmitting plate, then place the equipment to be used at the center of the bottom of the housing, and connect the required wires through the top of the housing to the equipment electrically. The distance between the two clamping plates on the adjusting rod is adjusted to secure the equipment between them. The second light-transmitting plate is then pulled down to close the housing, and the device can be used. The external traction rope is then secured to the top of the housing. After securing, the housing is released into the mine shaft for measurement. The clamping plates provide rigid fixation of the equipment, avoiding loosening issues that can occur with elastic fixation, thus improving the stability of the equipment installation, effectively preventing slippage and displacement, and improving measurement accuracy.

[0015] This windbreak device replaces the glass plate with a polycarbonate plate, which improves the impact resistance of the plate while ensuring good light transmission. The stainless steel mesh embedded in the polycarbonate plate further enhances the explosion-proof effect of the polycarbonate plate, thus adapting to the underground working environment and extending the service life of the equipment. Attached Figure Description

[0016] Figure 1 A schematic diagram of the external structure of a portable plumb bob windbreak device for centering underground measuring instruments in mines;

[0017] Figure 2 A schematic cross-sectional view of a portable plumb bob windbreak device for centering underground measuring instruments in mines;

[0018] Figure 3 This is a cross-sectional schematic diagram of a portable plumb bob windbreak device for centering underground measuring instruments in mines.

[0019] In the picture:

[0020] 1. Housing; 2. First light-transmitting plate; 3. Second light-transmitting plate; 4. Clamping mechanism; 41. Adjusting rod; 42. Slide rod; 43. Clamping plate; 44. Slide groove; 45. Two-way lead screw; 46. Knob; 47. First anti-slip plate; 48. Second anti-slip plate; 49. Light-transmitting hole; 5. Stainless steel mesh. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example 1

[0023] This embodiment provides a portable plumb bob windbreak device for centering underground measuring instruments in mines, such as... Figure 1-3As shown, the windproof device includes a housing 1, a first light-transmitting plate 2 fixedly mounted on the housing 1, a second light-transmitting plate 3 slidably mounted on the housing 1, and a clamping mechanism 4 fixedly mounted inside the housing 1 for fixing the laser pointer.

[0024] The clamping mechanism 4 includes an adjusting rod 41 fixedly installed inside the housing 1. Two symmetrically distributed slide rods 42 are slidably installed on the adjusting rod 41. Two clamping plates 43 for clamping the laser pointer are fixedly installed on the ends of the two slide rods 42 away from the adjusting rod 41.

[0025] The position of the adjusting rod 41 is different from that of the second light-transmitting plate 3.

[0026] In use, the user opens the housing 1 by pulling up the second light-transmitting plate 3, then places the equipment to be used at the center of the bottom of the housing 1, and connects the required wires through the top of the housing 1 to the equipment electrically. The distance between the two clamps 43 on the adjusting rod 41 is adjusted to fix the equipment between the two clamps 43. Then, the second light-transmitting plate 3 is pulled down to close the housing 1, and then the equipment can be used. The external traction rope is then fixed to the upper end of the housing 1. After the fixation is completed, the housing 1 is released into the mine shaft for measurement. The clamps 43 rigidly fix the equipment, avoiding the loosening problem that occurs with elastic fixation, thereby improving the stability of the equipment installation, effectively preventing slippage and displacement, and improving measurement accuracy.

[0027] Specifically, the adjusting rod 41 has a sliding groove 44, and a bidirectional lead screw 45 is rotatably installed in the sliding groove 44. Two sliding rods 42 are screwed onto the bidirectional lead screw 45. One end of the bidirectional lead screw 45 passes through the first light-transmitting plate 2, and a knob 46 is fixedly installed on the end of the bidirectional lead screw 45 located outside the first light-transmitting plate 2.

[0028] In use, turn knob 46, which drives the bidirectional lead screw 45 to rotate. The bidirectional lead screw 45 drives the two slide rods 42 to move in opposite directions within the slide groove 44, thereby adjusting the distance between the two slide rods 42. This allows for adjustment of the size between the two clamping plates 43 as needed, enabling the clamping of different equipment and improving the applicability.

[0029] More specifically, the clamping plate 43 is V-shaped, with two clamping plates 43 symmetrically distributed, and a first anti-slip piece 47 is fixedly installed on the inner side wall of the V-shape of each clamping plate 43.

[0030] When in use, when the centering device is clamped by the clamping plate 43, the clamping plate 43 contacts the outer wall of the centering device through the first anti-slip plate 47, which increases the friction between the clamping plate 43 and the centering device, thereby making the clamping plate 43 more stable when clamping the centering device.

[0031] Understandably, setting the clamp 43 to a V-shape allows it to fit the housings of different centering devices, providing a more stable clamp and preventing the centering device from slipping off.

[0032] Furthermore, a second anti-slip plate 48 is fixedly installed at the center of the first light-transmitting plate 2 on the bottom of the housing 1, and the second anti-slip plate 48 is located at the center of the two clamping plates 43.

[0033] When in use, the centering device is placed on the second anti-slip plate 48 to increase the friction between the centering device and the first light-transmitting plate 2, thereby improving the stability of the centering device installation.

[0034] Furthermore, the second anti-slip plate 48 has a light-transmitting hole 49, which is located at the center of the bottom of the housing 1.

[0035] When in use, the centering device can be placed on the second anti-slip plate 48. The light-emitting point of the centering device can be aligned with the light-transmitting hole 49 on the first light-transmitting plate 2 at the bottom of the housing 1 and irradiated vertically downwards. Alternatively, the centering device can be placed horizontally and irradiated from the first light-transmitting plate 2 on the side wall of the housing 1. This variety of options increases the applicability.

[0036] Example 2

[0037] Unlike Example 1, if a conventional glass plate is used as the light-transmitting element, debris often falls onto the well wall during underground work. The glass plate is fragile in this environment and its performance is poor. Therefore, the first light-transmitting plate 2 and the second light-transmitting plate 3 are polycarbonate plates, and stainless steel mesh 5 is embedded in the first light-transmitting plate 2 and the second light-transmitting plate 3.

[0038] When in use, a polycarbonate plate is used instead of a glass plate. While ensuring good light transmission, the impact resistance of the plate is improved. A stainless steel mesh 5 is embedded in the polycarbonate plate to further improve the explosion-proof effect of the polycarbonate plate, thereby adapting to the underground working environment and extending the service life of the equipment.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A portable plumb bob windbreak device for centering underground measuring instruments in mines, comprising a housing (1), a first light-transmitting plate (2) fixedly mounted on the housing (1), a second light-transmitting plate (3) slidably mounted on the housing (1), and a clamping mechanism (4) fixedly mounted inside the housing (1) for fixing a laser alignment device, characterized in that: The clamping mechanism (4) includes an adjusting rod (41) fixedly installed in the housing (1), and two symmetrically distributed slide rods (42) are slidably installed on the adjusting rod (41). Two clamping plates (43) for clamping the laser pointer are fixedly installed on the two slide rods (42) at the ends away from the adjusting rod (41). The adjustment rod (41) is positioned differently from the second light-transmitting plate (3).

2. The portable plumb bob windbreak device for centering underground measuring instruments according to claim 1, characterized in that: The adjusting rod (41) has a sliding groove (44), and a bidirectional lead screw (45) is rotatably installed in the sliding groove (44). Two sliding rods (42) are screwed onto the bidirectional lead screw (45). One end of the bidirectional lead screw (45) passes through the first light-transmitting plate (2), and a knob (46) is fixedly installed on the end of the bidirectional lead screw (45) located outside the first light-transmitting plate (2).

3. The portable plumb bob windbreak device for centering underground measuring instruments according to claim 1, characterized in that: The clamping plate (43) is V-shaped and the two clamping plates (43) are symmetrically distributed. The first anti-slip plate (47) is fixedly installed on the inner side wall of the V-shape of each clamping plate (43).

4. The portable plumb bob windbreak device for centering underground measuring instruments according to claim 3, characterized in that: A second anti-slip plate (48) is fixedly installed at the center of the first light-transmitting plate (2) on the bottom of the housing (1). The second anti-slip plate (48) is located at the center of the two clamping plates (43).

5. The portable plumb bob windbreak device for centering underground measuring instruments according to claim 4, characterized in that: The second anti-slip sheet (48) has a light-transmitting hole (49) located at the center of the bottom of the housing (1).

6. The portable plumb bob windbreak device for centering underground measuring instruments according to claim 1, characterized in that: The first light-transmitting plate (2) and the second light-transmitting plate (3) are polycarbonate plates, and stainless steel mesh (5) is embedded in the first light-transmitting plate (2) and the second light-transmitting plate (3).

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