Underground mine wind measurement support capable of being movably disassembled and assembled

Abstract

The invention discloses an underground mine wind measurement support capable of being movably disassembled and assembled, and relates to the technical field of underground mine wind measurement. The underground mine wind measurement support capable of being movably disassembled and assembled comprises a base and a stand column fixedly connected to the middle of the upper end face of the base, a plurality of sliding bases are arranged on the base in the circumferential direction at equal intervals in a sliding mode, a side plate is hinged to each sliding base through a connecting part, and a supporting frame is fixedly connected to the lower side wall of each side plate; after the second sleeve moves to the upper end position of the second stroke of the second sleeve, the guide part limits the second sleeve to form a second supporting mode, the supporting area can be synchronously increased along with rising of the overall height of the second sleeve, the supporting range is expanded in proportion when the gravity center rises, and therefore it is guaranteed that good stress stability is kept at different heights; meanwhile, in a non-wind measurement state, the side plates are erected and abut against one another to form a closed enclosure cavity, so that the wind measurement instrument can be contracted inside, the wind measurement instrument can be effectively protected when not in use, and impact damage to the instrument caused by sand carried by underground wind flow is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine downhole wind measurement, in particular to a movable and detachable underground mine wind measurement support. BACKGROUND

[0002] Mine downhole wind measurement is an important link in ventilation management. By measuring the wind speed, air volume and other parameters at different positions in the roadway, it can be determined whether the ventilation system is working normally, so as to timely find out safety hazards such as gas accumulation, dust retention or harmful gas diffusion. Therefore, wind measurement is an important means to ensure the safety of underground operation and meet the requirements of relevant regulations. Wind speed meters, air pressure gauges and other wind measurement equipment are usually used to measure different heights and cross-section positions in the roadway. In order to ensure the accuracy of the measurement point position and the stability of the instrument, a wind measurement support is often used for installation. Since the wind measurement points are widely distributed in the roadway and are often temporary measurement points, the measurement position often changes. Therefore, the support needs to have the characteristics of frequent movement, rapid deployment and folding. At present, a simple tripod-like structure is commonly used for easy carrying and arrangement.

[0003] However, although this type of tripod has a simple structure and is easy to operate, the support area after each deployment is fixed. When wind measurement is needed at different heights at the same location, the support center of gravity obviously moves upward as the height increases, and the support area cannot increase accordingly, resulting in a continuous decrease in overall stability as the height increases. In addition, under the action of underground air flow, the support is more likely to shake or even fall, especially when it is raised to the highest position, which leads to unstable wind measurement data.

[0004] In addition, in actual wind measurement operation, in order to improve efficiency, the wind measurement instrument is not separated from the support after the completion of the wind measurement, but is installed on the support for a long time, so that it can be quickly put into use when wind measurement is needed next time. Since the underground air flow often contains sand and stone particles, and due to the simple structure of the existing simple support, the support cannot provide the necessary protection for the wind measurement instrument. The wind measurement instrument is always in a completely exposed state without any shielding protection measures. Long-term exposure to high-speed air flow and the continuous impact of mixed particles can easily cause damage to the wind measurement instrument. SUMMARY

[0005] The present application provides a movable and detachable underground mine wind measurement support, which solves the technical problems of the conventional wind measurement support that the support area is fixed and cannot change with the height adjustment, the center of gravity moves upward and the stability decreases when the support is raised to measure wind at different height positions, and the existing support lacks a protective structure, resulting in long-term impact damage to the instrument housing and probe.

[0006] The application provides a movable and detachable underground mine wind measurement support, which comprises a base and a stand column fixedly connected to the middle part of the upper end face of the base, a plurality of sliding seats are circumferentially and equidistantly arranged on the base, a side plate is hingedly connected to each sliding seat through a connecting part, a support frame is fixedly connected to the lower side wall of each side plate, a first sleeve and a second sleeve are sequentially and slidably arranged outside the stand column from inside to outside, a guide part is arranged between the first sleeve, the second sleeve and the stand column, a first touch part is arranged on the first sleeve, a second touch part is arranged between the second sleeve and the sliding seat, a telescopic cross beam is detachably connected to the outside of the second sleeve through a clamping piece, a load bearing plate is detachably connected to the upper part of the telescopic cross beam, and the movable and detachable underground mine wind measurement support has three operation modes composed of a protection mode, a first support mode and a second support mode. When the protection mode is adopted, each side plate is in a folded state of standing up and abutting against each other, and the first sleeve and the second sleeve are respectively arranged in the inner cavity surrounded by the side plates; the first sleeve is pulled upward to move upward along the stand column by a first stroke, the first touch part cooperates with the connecting part to drive each side plate to expand outward and rotate to a position in line with the base, so that the support area is increased, the first sleeve is limited by the guide part after moving to the upper end position of the first stroke, and the first support mode is formed; the second sleeve is continuously pulled upward to move upward along the first sleeve by a second stroke, the second touch part drives each sliding seat to move outward, and then the expanded side plates are further expanded outward to increase the support area, the second sleeve is limited by the guide part after moving to the upper end position of the second stroke, and the second support mode is formed.

[0007] In a possible implementation manner, the connecting part comprises a mounting groove arranged on the sliding seat, a waist-shaped groove is arranged on the opposite groove walls of the mounting groove, a rotating shaft is slidably connected between the two waist-shaped grooves, an L-shaped corner plate is fixedly connected to the outside of the rotating shaft, the side plate is fixedly connected to the side of the horizontal section of the L-shaped corner plate away from the stand column, a guide groove is arranged on the opposite groove walls of the mounting groove, a guide column fixedly connected in the guide groove is arranged on the L-shaped corner plate, and the guide groove is composed of an arc section groove and a horizontal section groove communicated with the lower end of the arc section groove.

[0008] In a possible implementation manner, the first touch part comprises a sliding ring connected to the outside of the stand column in a spline cooperation manner and an insertion groove arranged on the vertical section of the L-shaped corner plate, the sliding ring is rotatably connected to the lower end of the first sleeve, a plurality of wedge-shaped seats matched with the insertion grooves are circumferentially and equidistantly fixedly connected to the outer wall of the sliding ring through a connecting plate, and the upper end side of the vertical section of the L-shaped corner plate is a slope.

[0009] In a possible implementation manner, the second touch part comprises a plurality of through holes circumferentially and equidistantly arranged on the side end face of the base and corresponding to the positions of the sliding seats, a plurality of L-shaped grooves circumferentially and equidistantly arranged on the base, a pull rope fixedly connected to the side of each sliding seat away from the stand column, and the end of the pull rope away from the sliding seat sequentially penetrates through the corresponding through hole and L-shaped groove and is fixedly connected to the outer wall of the second sleeve.

[0010] In a possible implementation, the guide part comprises a first guide assembly arranged between the inner wall of the first sleeve and the outer wall of the stand, the first guide assembly comprises a guide slot formed on the outer wall of the stand and a guide column fixedly connected to the inner wall of the first sleeve and slidingly connected in the guide slot, the guide slot comprises a vertical slot section, a horizontal slot section communicated with the lower end of the vertical slot section, and an inclined slot section communicated with the upper end of the vertical slot section, and the inner wall of the second sleeve is also provided with a second guide assembly which has the same structure as the first guide assembly.

[0011] In a possible implementation, the clamping piece comprises a column base, two left-right symmetrical clamping columns fixedly connected to the column base, and two front-rear symmetrical supporting plates fixedly connected to the outer wall of the second sleeve, the column base is located between the two supporting plates, the supporting plates are provided with two center-symmetrically distributed sliding-in grooves, the two clamping columns are respectively located in the corresponding sliding-in grooves, the supporting plates are provided with insertion holes communicated with the two sliding-in grooves, and the insertion holes are inserted with pin shafts.

[0012] In a possible implementation, a plurality of sink grooves are equidistantly formed on the base in the circumferential direction, the sliding seat is slidingly connected in the sink groove, and a columnar groove is formed on the side of the sink groove close to the stand, and a tension spring is fixedly connected between the columnar groove and the sliding seat.

[0013] In a possible implementation, two embedding grooves corresponding to the waist-shaped groove and communicated with the waist-shaped groove are formed on each sliding seat, a push block abutting against the outer part of the rotating shaft is slidingly connected in the embedding groove, and a compression spring is fixedly connected between the push block and the embedding groove.

[0014] As can be seen from the above technical solutions, the present application has the following advantages: in the present application, the side plates are unfolded to form a support surface together with the base during wind measurement, thereby enhancing the support stability, and during the wind measurement process, the side plates are distanced from each other and expanded outward as the height of the second sleeve increases, thereby further increasing the support area, making the support area increase synchronously with the overall height, and making the support range expand proportionally as the center of gravity rises, so that good stress stability is maintained at different heights, and the stability during wind measurement is ensured.

[0015] In the present application, the side plates are erected and abut against each other to form a closed enclosure structure in a non-wind measurement state, so that the wind measurement instrument can be accommodated in the inner cavity surrounded by the side plates, thereby obtaining sufficient protection effect when not in use, effectively blocking the impact of sand particles mixed in the downhole air flow, and avoiding damage to the wind measurement instrument caused by impact. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 The overall structural schematic diagram of the present application is provided (at this time in the first support mode).

[0018] Figure 2 The partial structural schematic diagram of the present application is provided (part of the side plate is hidden).

[0019] Figure 3 The base cross-sectional structural schematic diagram of the present application is provided.

[0020] Figure 4 The connecting part installation structural schematic diagram of the present application is provided.

[0021] Figure 5 The first cross-sectional structural schematic diagram of the slide of the present application is provided.

[0022] Figure 6 The second cross-sectional structural schematic diagram of the slide of the present application is provided.

[0023] Figure 7 The connecting structure split schematic diagram of the column, the first sleeve and the second sleeve of the present application is provided.

[0024] Figure 8 The guide part structural schematic diagram of the present application is provided.

[0025] Figure 9 The cross-sectional structural schematic diagram of the clamping piece of the present application is provided.

[0026] Figure 10 The structural schematic diagram of the present application in the protection mode is provided.

[0027] Figure 11 The structural schematic diagram of the present application in the second support mode is provided.

[0028] Wherein, the above-mentioned drawings include the following reference signs: 1, base; 2, stand; 3, sliding seat; 4, side plate; 5, connecting part; 51, mounting groove; 52, waist-shaped groove; 53, rotating shaft; 54, L-shaped angle plate; 55, guide groove; 56, guide column; 57, push block; 6, guide part; 61, guide groove; 62, guide column; 7, first touch part; 71, sliding ring; 72, insertion groove; 73, wedge-shaped seat; 8, second touch part; 81, L-shaped channel; 82, pull rope; 9, clamping piece; 91, column seat; 92, clamping column; 93, support plate; 94, sliding-in groove; 95, pin shaft; 10, first sleeve; 11, second sleeve; 12, telescopic cross beam; 13, support frame; 14, tension spring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objectives, features and advantages of the present application more apparent, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than the ways described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 7The application provides a technical scheme: a movable and detachable underground mine wind measurement support, which comprises a base 1 and a stand 2 fixedly connected to the middle part of the upper end face of the base 1, a plurality of counterweights are fixedly connected to the upper end face of the base 1 in a circumferential equidistant manner, and the counterweights are used for reducing the overall gravity center to enhance the stability of the base 1 support, a plurality of sliding seats 3 are slidingly arranged on the upper circumferential surface of the base 1 in an equidistant manner, a plurality of sink grooves are formed on the upper circumferential surface of the base 1 in an equidistant manner, the sliding seats 3 are slidingly connected in the sink grooves, a columnar groove is formed on one side of each sink groove close to the stand 2, a pull spring 14 is fixedly connected between the columnar groove and the sliding seat 3, a side plate 4 is hingedly connected to each sliding seat 3 through a connecting part 5, a support frame 13 is fixedly connected to the lower side wall of each side plate 4, a first sleeve 10 and a second sleeve 11 are slidingly arranged on the outside of the stand 2 in sequence from inside to outside, a guide part 6 is arranged between the first sleeve 10, the second sleeve 11 and the stand 2, a first touch part 7 is arranged on the first sleeve 10, a second touch part 8 is arranged between the second sleeve 11 and the sliding seat 3, a telescopic cross beam 12 is detachably connected to the outside of the second sleeve 11 through a clamping piece 9, a load-bearing plate is detachably connected to the upper part of the telescopic cross beam 12, and the load-bearing plate is arranged on the telescopic cross beam 12 in a cooperation mode of a screw hole. The movable and detachable underground mine wind measurement support has three operation modes composed of a protection mode, a first support mode and a second support mode: when the protection mode is adopted, each side plate 4 is in a folded state of standing up and abutting against each other, and the first sleeve 10 and the second sleeve 11 are respectively arranged in the inner cavity surrounded by the side plate 4; the first sleeve 10 is pulled upward along the stand 2 to move a first stroke, the first touch part 7 cooperates with the connecting part 5 to drive each side plate 4 to unfold outward and rotate to a position in line with the base 1, the support area is increased, after the first sleeve 10 moves to the upper end position of the first stroke, the guide part 6 limits the first sleeve 10 to form the first support mode; the second sleeve 11 is continuously pulled upward along the first sleeve 10 to move a second stroke, the second touch part 8 drives each sliding seat 3 to move outward, and then the unfolded side plates 4 are further expanded to increase the support area, after the second sleeve 11 moves to the upper end position of the second stroke, the guide part 6 limits the second sleeve 11 to form the second support mode.

[0031] Please refer to Figure 1 and Figure 9 In the embodiment, the clamping piece 9 comprises a column base 91, two left-right symmetrical clamping columns 92 fixedly connected to the column base 91 and two front-rear symmetrical supporting plates 93 fixedly connected to the outer wall of the second sleeve 11, the column base 91 is located between the two supporting plates 93, two center-symmetrically distributed sliding grooves 94 are formed in the supporting plates 93, the two clamping columns 92 are respectively located in the corresponding sliding grooves 94, the supporting plates 93 are provided with insertion holes in communication with the two sliding grooves 94, and a pin shaft 95 is inserted into the insertion hole.

[0032] The column base 91 and the two support plates 93 are in a separated state when not installed, and when it is necessary to synchronously retract the telescopic cross beam 12 into the erected side plate 4 along the second sleeve 11, the clamping column 92 close to the second sleeve 11 is slid into the sliding groove 94 away from the second sleeve 11, at this time the telescopic cross beam 12 can be changed into a vertical state; when it is necessary to install the wind measuring instrument to measure the wind, the two clamping columns 92 are distributed at the opening of the corresponding sliding grooves 94, then the telescopic cross beam 12 is rotated to drive the column base 91 to rotate, so that the clamping column 92 enters the sliding groove 94, and finally the pin shaft 95 is inserted into the insertion hole to limit the clamping column 92.

[0033] Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 In the embodiment, the connecting part 5 comprises a mounting groove 51 provided on the sliding seat 3, a waist-shaped groove 52 is provided on the opposite groove walls of the mounting groove 51, a rotating shaft 53 is slidably connected between the two waist-shaped grooves 52, an L-shaped angle plate 54 is fixedly connected to the outer part of the rotating shaft 53, the side plate 4 is fixedly connected to the side of the horizontal section of the L-shaped angle plate 54 away from the stand column 2, a guide groove 55 is provided on the opposite groove walls of the mounting groove 51, a guide column 56 is fixedly connected to the L-shaped angle plate 54 and slidably connected in the guide groove 55, the guide groove 55 is composed of an arc-shaped section groove and a horizontal section groove communicated with the lower end of the arc-shaped section groove, two embedding grooves corresponding to the waist-shaped grooves 52 are provided on each sliding seat 3, a push block 57 is slidably connected in the embedding groove and abuts against the outer part of the rotating shaft 53, and a top spring is fixedly connected between the push block 57 and the embedding groove.

[0034] Please refer to Figure 2 In the embodiment, the first touch part 7 comprises a sliding ring 71 connected to the outer part of the stand column 2 by means of spline cooperation and an insertion embedding groove 72 provided on the vertical section of the L-shaped angle plate 54, the sliding ring 71 is rotatably connected to the lower end of the first sleeve 10, a plurality of wedge-shaped seats 73 matched with the insertion embedding groove 72 are circumferentially equidistantly fixedly connected to the outer wall of the sliding ring 71 by means of a connecting plate, and the upper end side of the vertical section of the L-shaped angle plate 54 is a slope.

[0035] Please refer to Figure 7 and Figure 8 In the embodiment, the guide part 6 comprises a first guide assembly arranged between the inner wall of the first sleeve 10 and the outer wall of the stand column 2, the first guide assembly comprises a guide groove 61 provided on the outer wall of the stand column 2 and a guide column 62 fixedly connected to the inner wall of the first sleeve 10 and slidably connected in the guide groove 61, the guide groove 61 is composed of a vertical groove section, a horizontal groove section communicated with the lower end of the vertical groove section and an inclined groove section communicated with the upper end of the vertical groove section, and the inner wall of the second sleeve 11 and the outer wall of the first sleeve 10 are also provided with a second guide assembly having the same structure as the first guide assembly.

[0036] The wind measuring instrument is installed on the bearing plate, and in the protection mode: each side plate 4 is in the erected state, the first sleeve 10 and the second sleeve 11 are in the lowest position, the guide column 62 is located in the transverse groove section of the guide groove 61, the sliding ring 71 and the wedge-shaped seat 73 are also in the lowest position, the wedge-shaped seat 73 is in contact with the inserted groove 72, and the L-shaped angle plate 54 is limited, thereby indirectly keeping the side plate 4 in the erected state, and the compression spring is in the compressed state and the push block 57 is pushed against the rotating shaft 53. At this time, the telescopic cross beam 12 is in a vertical state, and the telescopic cross beam 12 drives the wind measuring instrument to be synchronized and retracted in the area surrounded by the side plate 4 (as shown in Figure 10 ), so as to realize the protection of the wind measuring instrument when the wind measurement is paused.

[0037] It should be noted that the wind measuring instrument can be selected from a wind speed meter or a wind pressure gauge, wherein the wind pressure gauge converts the wind speed into a measurable pressure difference through a pressure sensor, and then obtains the wind speed through signal processing and data calculation.

[0038] When it is necessary to measure the wind of the mine, the first sleeve 10 is manually rotated to drive the guide column 62 to slide into the vertical groove section of the guide groove 61, and then the first sleeve 10 is pulled upwards to move, and at the same time, the guide column 62 slides upwards along the vertical groove section of the guide groove 61, the first sleeve 10 drives the wedge-shaped seat 73 to move upwards synchronously through the sliding ring 71 and the fixed plate, (since the sliding ring 71 is connected with the stand column 2 in the spline connection mode, the sliding ring 71 can only move up and down), and the wedge-shaped seat 73 is removed from the contact with the L-shaped angle plate 54 after moving upwards.

[0039] Since the side plate 4 is fixedly connected with the support frame 13 outside, the center of gravity of the side plate 4 and the support frame 13 is offset outward, and the center of gravity line of the two is located on the side of the rotating shaft 53, then the side plate 4 is rotated outward by the L-shaped angle plate 54 under the self-weight, the L-shaped angle plate 54 is rotated to drive the guide column 56 to slide in the arc-shaped section groove of the guide groove 55, until the side plate 4 is rotated to the horizontal position, at this time, the support frame 13 is in contact with the ground, the guide column 56 is rotated to the horizontal section groove of the guide groove 55, and then the push block 57 is pushed to move the rotating shaft 53 in the waist-shaped groove 52 away from the stand column 2 under the driving of the compression spring, the rotating shaft 53 drives the L-shaped angle plate 54 to move horizontally, the L-shaped angle plate 54 drives the side plate 4 to move synchronously, and at the same time, the L-shaped angle plate 54 drives the guide column 56 to slide in the horizontal section groove of the guide groove 55, so that the L-shaped angle plate 54 cannot be rotated around the rotating shaft 53 at this time, thereby realizing the limiting and locking of the side plate 4 rotated to the horizontal state, so that the side plate 4 and the base 1 are located on the same plane, and the supporting effect is ensured.

[0040] Continue to pull the first sleeve 10 upwards along the stand 2 until the guide post 62 on the first sleeve 10 moves to the upper end of the vertical groove section of the guide groove 61 on the stand 2. At this time, the first sleeve 10 is rotated in the opposite direction to the initial rotation, thereby causing the guide post 62 to slide into the inclined groove section at the upper part of the guide groove 61. Then, the first sleeve 10 is released, and the guide post 62 slides into the guide groove 61 to limit the first sleeve 10 at this time. The first sleeve 10 cannot be lowered at this time, and the anemometer can be installed on the bearing plate for wind measurement at the current height. The unfolded side plates 4 and the base 1 jointly support the first sleeve 10 after being raised to enhance the stability of the raised center of gravity (as shown in Figure 1 ).

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 . In this embodiment, the second touch part 8 includes a plurality of through holes that are circumferentially and equidistantly arranged on the side end face of the base 1 and correspond to the positions of the sliding seats 3, and a plurality of L-shaped grooves 81 that are circumferentially and equidistantly arranged on the base 1. Each sliding seat 3 is fixedly connected with a cable 82 on the side away from the stand 2. The end of the cable 82 away from the sliding seat 3 passes through the corresponding through hole and L-shaped groove 81 in sequence and is fixedly connected to the outer wall of the second sleeve 11.

[0042] During the process of raising the first sleeve 10, the cable 82 is in a relaxed state, and the base 1 is located at the closest distance from the stand 2. At this time, the tension spring 14 is in a natural state. When it is necessary to raise the height again for wind measurement, the corresponding guide post 62 is first manually rotated to slide from the horizontal groove section of the guide groove 61 into the vertical groove section. Then, the second sleeve 11 is pulled upwards along the first sleeve to move. After the second sleeve 11 moves a distance, the cable 82 is in a taut state. Then, the taut cable 82 drives the lower part of itself to move in the L-shaped groove 81 and the through hole, thereby pulling the sliding seat 3 to move away from the stand 2. The sliding seat 3 drives the tension spring 14 to be stretched. The sliding seat 3 drives the side plates 4 to move synchronously through the rotating shaft 53 and the L-shaped angle plate 54, gradually increasing the support area. Until the second sleeve 11 drives the corresponding guide post 62 to move to the upper end of the vertical groove section of the guide groove 61 outside the first sleeve 10. At this time, each side plate 4 moves outward to the maximum distance. The second sleeve 11 is rotated to drive the guide post 62 to slide into the inclined groove section at the upper part of the guide groove 61 to limit and lock the second sleeve 11 after being raised. The support area is further increased by the outward movement of the side plates 4 away from each other, thereby indirectly enhancing the stability of the support (as shown in Figure 11 ).

[0043] The expansion and lateral extension distance of the upper travel control side plate 4 of the first sleeve 10 and the second sleeve 11 is controlled, so that the support area increases synchronously with the overall height, the support range expands proportionally when the gravity center rises, and good stress stability is ensured at different heights.

[0044] When the wind measurement operation at the highest position is completed and is temporarily not used, the telescopic beam 12 becomes a vertical state by operating the clamping piece 9, the corresponding guide column 62 is slid into the vertical groove segment in the guide groove 61 from the inclined groove segment in the guide groove 61 by reversely rotating the second sleeve 11, then the second sleeve 11 is lowered until the guide column 62 is slid into the lower end of the vertical groove segment in the guide groove 61, then the corresponding guide column 62 is moved to the horizontal groove segment in the guide groove 61 by rotating the second sleeve 11, and the cable 82 changes from the tensioned state to the initial relaxed state during the lowering of the second sleeve 11, so that the cable 82 gradually releases the pulling of the sliding seat 3, the tension spring 14 is reset to pull the sliding seat 3 to move close to the pull column, and the sliding seat 3 moves to the initial position.

[0045] Then, the corresponding guide column 62 is slid into the vertical groove segment in the guide groove 61 from the inclined groove segment in the guide groove 61 by rotating the first sleeve 10, then the first sleeve 10 is gradually lowered, the sliding ring 71 and the wedge-shaped seat 73 are simultaneously lowered by the first sleeve 10, the wedge-shaped seat 73 is lowered by a stroke, the inclined surface of the wedge-shaped seat 73 abuts against the vertical segment with an inclined surface of the L-shaped angle plate 54, the inclined surface of the wedge-shaped seat 73 and the inclined surface of the L-shaped angle plate 54 are pressed against each other, the L-shaped angle plate 54 moves close to the stand column 2, the L-shaped angle plate 54 simultaneously drives the side plate 4 to move synchronously, the L-shaped angle plate 54 simultaneously drives the pivot 53 to move in the waist-shaped groove 52 and the guide column 56 to move along the horizontal segment groove in the guide groove 55, until the guide column 56 is slid into the arc-shaped segment groove in the guide groove 55, at this time, the wedge-shaped seat 73 starts to slide into the insertion groove 72, the L-shaped angle plate 54 is pressed to rotate around the pivot 53 by the wedge-shaped seat 73, thereby driving the guide column 56 to slide along the arc-shaped segment groove in the guide groove 55, the L-shaped angle plate 54 in turn drives the side plate 4 to rotate, until the side plate 4 is erected again, at this time, the guide column 62 slides to the lower end of the vertical groove segment in the guide groove 61, finally, the guide column 62 is slid into the middle horizontal groove in the guide groove 61 by rotating the first sleeve 10, and the protection mode is switched.

[0046] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0047] In addition, the terms "first", "second", "one", "two" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0048] In the present application, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, therefore; any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A portable and detachable wind measuring support for underground mine, comprising a base and a column fixedly connected to the middle of the upper end surface of the base, characterized in that: The base is provided with a plurality of sliding seats arranged equidistantly in circumference, each of which is hingedly connected with a side plate through a connecting part, the lower side wall of the side plate is fixedly connected with a support frame, the outer part of the stand is sequentially sleeved with a first sleeve and a second sleeve from inside to outside, the first sleeve, the second sleeve and the stand are jointly provided with a guide part, the first sleeve is provided with a first touch part, the second sleeve is provided with a second touch part between the second sleeve and the sliding seat, the outer part of the second sleeve is detachably connected with a telescopic cross beam through a clamping piece, the upper part of the telescopic cross beam is detachably connected with a bearing plate. The movable and detachable underground mine wind measuring support has three operation modes of protection mode, first support mode and second support mode; In the protection mode, each side plate is in the folded state of standing up and abutting against each other, and the first sleeve and the second sleeve are respectively arranged in the inner cavity surrounded by the side plate; the first sleeve is pulled upward to move upward along the stand by a first stroke, so that the first touch part cooperates with the connecting part to drive each side plate to unfold outward and rotate to a position flush with the base, thereby increasing the support area; after the first sleeve moves to the upper end position of the first stroke, the guide part limits the first sleeve to form the first support mode; the second sleeve is continuously pulled upward to move upward along the first sleeve by a second stroke, so that the second touch part drives each sliding seat to move outward, and then the unfolded side plates are further expanded to increase the support area; after the second sleeve moves to the upper end position of the second stroke, the guide part limits the second sleeve to form the second support mode.

2. A portable, demountable underground mine surveying support according to claim 1, characterised in that: The connecting part comprises a mounting groove formed in the sliding seat, a waist-shaped groove is formed in the opposite groove wall of the mounting groove, a rotating shaft is jointly and slidably connected between the two waist-shaped grooves, an L-shaped angle plate is fixedly connected to the outer part of the rotating shaft, the side plate is fixedly connected to the side of the L-shaped angle plate away from the stand, a guide groove is formed in the opposite groove wall of the mounting groove, a guide column fixedly connected in the guide groove is fixedly connected to the L-shaped angle plate, and the guide groove is composed of an arc-shaped groove and a horizontal groove communicated with the lower end of the arc-shaped groove.

3. A portable, demountable underground mine surveying support according to claim 2, characterised in that: The first touch part comprises a sliding ring connected to the outer part of the stand by means of spline cooperation and an insertion groove formed in the vertical section of the L-shaped angle plate, the sliding ring is rotatably connected to the lower end of the first sleeve, the outer wall of the sliding ring is fixedly connected with a plurality of wedge-shaped seats which are inserted into the insertion grooves by means of a connecting plate, and the upper end side of the vertical section of the L-shaped angle plate is a slope.

4. A portable, dismountable underground mine anemometer support according to claim 1, characterized in that: The second touch part comprises a plurality of through holes equidistantly formed in the side end face of the base and corresponding to the positions of the sliding seats, and a plurality of L-shaped grooves equidistantly formed on the base, one side of each sliding seat away from the stand is fixedly connected with a cable, and the end of the cable away from the sliding seat is sequentially inserted into the corresponding through hole and L-shaped groove and fixedly connected to the outer wall of the second sleeve.

5. A portable, dismountable underground mine anemometer support according to claim 1, characterized in that: The guide part comprises a first guide assembly arranged between the inner wall of the first sleeve and the outer wall of the stand, the first guide assembly comprises a guide groove formed on the outer wall of the stand and a guide column fixedly connected to the inner wall of the first sleeve and slidably connected in the guide groove, the guide groove is composed of a vertical groove section, a horizontal groove section communicated with the lower end of the vertical groove section and an inclined groove section communicated with the upper end of the vertical groove section, and the inner wall of the second sleeve and the outer wall of the first sleeve are also provided with a second guide assembly which has the same structure as the first guide assembly.

6. A portable, dismountable underground mine anemometer support according to claim 1, characterized in that: The clamping piece comprises a column base, two left-right symmetrical clamping columns fixedly connected to the column base, and two front-back symmetrical supporting plates fixedly connected to the outer wall of the second sleeve, the column base is located between the two supporting plates, two centrally symmetrical sliding grooves are formed in the supporting plates, the two clamping columns are respectively located in the corresponding sliding grooves, a plug hole is formed in the supporting plate and communicates with the two sliding grooves, and a pin shaft is inserted into the plug hole.

7. A portable, collapsible underground mine anemometer support according to claim 1, characterised in that: A plurality of sunken grooves are equidistantly formed on the base in a circumferential direction, the sliding seat is slidingly connected in the sunken groove, a columnar groove is formed on one side of the sunken groove close to the stand column, and a tension spring is fixedly connected between the columnar groove and the sliding seat.

8. A portable, dismountable underground mine anemometer support according to claim 2, characterized in that: Two embedding grooves corresponding to the waist-shaped groove and communicating with the waist-shaped groove are formed in each sliding seat, a push block abutting against the rotating shaft is slidingly connected in the embedding groove, and a top spring is fixedly connected between the push block and the embedding groove.

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