Knock signal experimental device

Abstract

The utility model discloses a knocking signal experiment device which comprises a pipe body, one end of the pipe body is provided with an opening, the other end of the pipe body is provided with a length-adjustable handle assembly, a knocking device is arranged in the pipe body in a sliding mode, and a locking trigger device is arranged outside the pipe body. The knocking device is locked through the locking and triggering device, and after the knocking device reaches a preset position, the knocking device is triggered through the locking and triggering device, so that the knocking device knocks a rock wall; the knocking force of the device is adjustable, the knocking force is fixed every time after adjustment, and high-position knocking is also facilitated.

Description

Technical Field

[0001] The utility model relates to a knocking signal experimental device. Background Art

[0002] Microseismic monitoring points are set up on the surface of the Yunhe Coal Mine, and combined with the existing microseismic monitoring points underground, a new microseismic monitoring network covering the entire mine is formed. Wireless 4G technology is used to collect mine production activity signals, elastic wave signals released by micro-fractures of the working face and overlying rock mass, and weak microseismic events are detected by analyzing the characteristics of microseismic waveform signals and using advanced algorithms based on machine learning and waveform matching. The distribution of the "three zones" is determined by comprehensively utilizing microseismic positioning, focal mechanism solutions, and CT inversion, and the laws of rock burst pressure on isolated working faces are studied to ensure the safety of coal mining in the Yunhe Coal Mine.

[0003] 1. Research on microseismic event templates based on waveform similarity

[0004] Aiming at the characteristics of weak signal and low signal-to-noise ratio of microseismic events caused by microfractures of coal and rock masses, a method suitable for identifying microseismic events induced by microfractures of coal and rock masses is proposed: a microseismic event template monitoring method based on waveform similarity.

[0005] 2. Research on accurate positioning of microseismic events in coal and rock mass throughout the mine

[0006] For the microseismic signals generated by coal and rock microfractures and mining production signals, in addition to using the arrival time information of the microseismic events, it is also necessary to consider the azimuth information of the microseismic events. This project will further study the advanced microseismic location method based on the double difference location algorithm combining the arrival time and azimuth of the microseismic events.

[0007] 3. Analysis and research on characteristics of microseismic waveform signals in coal and rock mass

[0008] The elastic wave signals released by micro-fractures of coal and rock mass under the influence of mining disturbance are continuously collected to study their waveform signal characteristics, including amplitude, frequency, energy and focal mechanism information.

[0009] 4. CT inversion imaging research

[0010] Using the microseismic signals and mining production signals generated by coal-rock microfractures, CT inversion imaging research is carried out through spatial positioning. Furthermore, by obtaining the changes in velocity in time and space, the development process of the "three belts" is portrayed.

[0011] 5. Study on the movement law of overlying rock strata in coal mine 3 based on microseismic source and imaging

[0012] Traditional research on the movement of overlying rock formations in coal seams only relies on the spatial distribution of microseismic activity. This project is based on comprehensive microseismic monitoring results, including high-precision microseismic positioning, source mechanism, and CT inversion imaging velocity changes, to more reliably and comprehensively study the movement of overlying rock formations in the No. 3 coal seam of Yunhe Coal Mine.

[0013] On the one hand, safe production can improve the production progress of coal mines and bring huge economic benefits to enterprises; on the other hand, it can be combined with each other to improve the accuracy of advance warning and effectively ensure the safety of mine production.

[0014] In the process of setting up the microseismic monitoring system, it is necessary to install sensors on the rock wall, then knock around the sensors, record the time of the knocking, and analyze the sensor's detection data to determine whether any vibration occurred at the recorded time point.

[0015] In the prior art, the tapping test is performed manually by hammering or anchoring. This tapping method has a limited height. Secondly, the strength of each tapping is uncontrollable, which affects the accuracy of the test. For example, the tapping distance is far, and the tapping strength is sometimes insufficient and sometimes too great, resulting in the sensor sometimes not receiving a signal, which easily leads to misjudgment of whether the sensor is in a normal working state.

[0016] Based on the above problems, we designed a knocking signal experimental device with adjustable knocking force. After adjustment, the knocking force can be fixed each time, which is also convenient for knocking at high places. Utility Model Content

[0017] The technical problem to be solved by the utility model is to provide a knocking signal experimental device with adjustable knocking force, which can fix the knocking force each time after adjustment and is also convenient for knocking at a high place.

[0018] The utility model is realized by the following technical solutions:

[0019] A knocking signal experimental device comprises a tube body, one end of which is provided with an opening, and the other end of which is provided with a handle assembly with adjustable length, a knocking device is slidably arranged inside the tube body, and a locking trigger device is arranged outside the tube body, and the knocking device is locked by the locking trigger device. After reaching a predetermined position, the knocking device is triggered by the locking trigger device, so that the knocking device knocks on a rock wall.

[0020] Preferably, a bracket body is threadedly connected to the opening of the tube body, and under the support of the bracket body, the opening of the tube body is separated from the rock wall.

[0021] Preferably, the handle assembly comprises a plurality of handle rods connected to each other, the interior of the handle rods is hollow, and the knocking device cooperates with the handle rods.

[0022] Preferably, the knocking device includes a knocking rod, which is coaxial with the tube body, a pull rope is fixed to the right end of the knocking rod, and the pull rope extends outward after passing through the handle rod, a sliding sleeve is fixed to the knocking rod, the sliding sleeve fits the inner wall of the tube body, a sliding groove is arranged at the outer wall of the tube body, a stepped hole is arranged at the position corresponding to the sliding groove, a limiting ring is arranged at the orifice of the stepped hole, the limiting ring is matched in the sliding groove and can slide along the sliding groove, a locking rod is arranged in the stepped hole, a sliding ring is arranged at the bottom of the locking rod, the limiting ring forms a limit for the outward sliding of the sliding ring, a spring is filled in the stepped hole, the spring acts on the locking rod, and under the action of the spring, the locking rod extends to the outside of the sliding groove, a first spring is matched through the sliding sleeve, the first spring acts between the inner end surface of the tube body and the sliding sleeve, when the first spring is released, the knocking rod is elastically excited to the left side, and the locking trigger device cooperates with the locking rod.

[0023] Preferably, the left end of the knocking rod is detachably equipped with a knocking block.

[0024] Preferably, the locking trigger device includes an outer ring body, the outer ring body cooperates with the tube body, the outer side of the outer ring body is provided with a screw for locking with the tube body, the inner side of the outer ring body is provided with a slider that cooperates with the slide groove, the slider is detachable, the inner side of the outer ring body is provided with an inclined groove for introducing the locking rod, and the end of the inclined groove is provided with a locking hole that cooperates with the locking rod, when the locking rod slides along the inclined groove, the spring is compressed, and when the locking rod corresponds to the locking hole, the spring is released, and the locking hole radially penetrates the outer ring body, and a push rod is slidably arranged in the lock hole, and the end of the push rod away from the axis of the outer ring body penetrates outward and cooperates with a limiting cap, and a second spring is arranged on the push rod, the second spring acts between the outer ring body and the limiting cap, and a force groove is penetrated on the rod body of the push rod The force-bearing groove has an inclined bottom surface, and an assembly hole is penetrated on the end surface of the outer ring body, the assembly hole is perpendicular to the lock hole and corresponds to the force-bearing groove, and a guide groove is arranged on the hole wall of the assembly hole, and a pull rod is matched with the assembly hole, and an operating handle is matched between the ends of the two pull rods, and the operating handle slides along the handle rod, and a first pull rope is matched with the operating handle, and a first limiting cap is arranged at the end of the pull rod away from the operating handle, and a third spring is sleeved on the pull rod, and the third spring acts between the outer ring body and the first limiting cap, and a push block matching the guide groove is arranged on the pull rod, and when the push block slides along the guide groove, it acts on the inclined bottom surface of the force-bearing groove, and at this time, the push rod slides toward the direction of the tube body and acts on the locking rod, so that the locking rod disengages from the lock hole.

[0025] The beneficial effects of the utility model are:

[0026] Advantage 1: The length of the handle assembly in the device can be stacked, so that it can strike high places on the rock wall to complete multi-point tests.

[0027] Advantage two, this device can adjust the locking position of the knocking device each time by locking the position of the trigger device, so that the knocking force of the knocking device is consistent each time it is triggered, and the force of the knocking signal test is uniform. Under the same knocking force, the test point is gradually farther away from the sensor until the sensor can no longer detect the knocking signal. At this time, the detection range of the sensor can be defined, and the detection is more practical, avoiding misjudgment of the sensor's working status due to uneven knocking force.

[0028] Advantage three: The operation method of the device is simple. The power of the striking device is accumulated by pulling the pull rope, and is released by pulling the first pull rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 This is a schematic diagram after the handle bar is partially removed;

[0032] Figure 3 is a cross-sectional view of the device;

[0033] Figure 4 This is the enlarged view of point A;

[0034] Figure 5 This is an enlarged view of point B;

[0035] Figure 6 It is a side view of the outer ring body. DETAILED DESCRIPTION

[0036] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0037] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0038] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1 A knocking signal experimental device shown includes a tube body 1, one end of the tube body 1 is provided with an opening, and the other end is equipped with a handle assembly 2 with adjustable length, a knocking device 3 is slidably arranged inside the tube body 1, and a locking trigger device 4 is arranged outside the tube body 1. The knocking device 3 is locked by the locking trigger device 4. After reaching a predetermined position, the knocking device 3 is triggered by the locking trigger device 4, so that the knocking device 3 knocks on the rock wall.

[0042] See also Figure 2 As shown, a support body 5 is threadedly connected to the opening of the tube body 1. Under the support of the support body 5, the opening of the tube body 1 is separated from the rock wall.

[0043] The setting of the bracket body 5 ensures that a sufficient distance is maintained between the opening of the tube body 1 and the rock wall, so that the striking device 3 has a sufficient displacement distance.

[0044] See also Figure 2 and Figure 3 As shown, the handle assembly 2 includes a plurality of handle rods 21 spliced ​​to each other, the interior of the handle rods 21 is hollow, and the knocking device 3 cooperates with the handle rods 21 .

[0045] The length of the handle bar 21 can be combined by threaded connection, so that the device can meet the operation requirements of different heights.

[0046] See also Figure 3 and Figure 4 As shown, the knocking device 3 includes a knocking rod 31, which is coaxial with the tube body 1. A pull rope 32 is fixed to the right end of the knocking rod 31, and the pull rope 32 extends outward after passing through the handle rod 21. A sliding sleeve 33 is fixed to the knocking rod 31, and the sliding sleeve 33 fits the inner wall of the tube body 1. A sliding groove 121 is arranged on the outer wall of the tube body 1. The sliding sleeve 33 is provided with a stepped hole (not shown) at a position corresponding to the sliding groove 121, and a limiting ring 34 is arranged at the orifice of the stepped hole. The limiting ring 34 is matched in the sliding groove 121 and can slide along the sliding groove 121. A locking rod 35 is arranged in the stepped hole, a slip ring 36 is arranged at the bottom of the locking rod 35, the limiting ring 34 limits the outward sliding of the slip ring 36, a spring 37 is filled in the stepped hole, the spring 37 acts on the locking rod 35, under the action of the spring 37, the locking rod 35 extends to the outside of the sliding groove 121, and is matched with a first spring 38 through the sliding sleeve 33, the first spring 38 acts between the inner end surface of the tube body 1 and the sliding sleeve 33, when the first spring 38 is released, the knocking rod 31 is elastically excited to the left side, and the locking trigger device 4 cooperates with the locking rod 35.

[0047] In the above technical solution, energy is stored by compressing the first spring 38, and the compression of the first spring 38 is limited by the locking trigger device 4 in cooperation with the locking rod. When it needs to be triggered, the locking trigger device 4 contacts the locking rod 35, and the first spring 38 is released at this time, and the knocking rod 31 knocks the rock wall.

[0048] See also Figure 3 As shown, the left end of the knocking rod 31 is detachably matched with a knocking block 3331.

[0049] The knocking block 3331 is a wearable part, and by being replaceable, the maintenance cost of the equipment is further reduced.

[0050] See also Figures 2 to 6As shown, the locking trigger device 4 includes an outer ring body 41, the outer ring body 41 cooperates with the tube body 1, the outer ring body 41 is provided with a screw 42 for locking with the tube body 1, the outer ring body 41 is provided with a slider 43 for cooperating with the slide groove inside, the slider 43 is detachable, the outer ring body 41 is provided with an inclined groove 44 for introducing the locking rod 35, and the end of the inclined groove 44 is provided with a locking hole 45 for cooperating with the locking rod 35, when the locking rod 35 slides into the inclined groove 44, the spring 3 7 is compressed, and when the lock rod 35 corresponds to the lock hole 45, the spring 37 is released, and the lock hole 45 radially penetrates the outer ring body 41, and a push rod 46 is slidably arranged in the lock hole 45, and the end of the push rod 46 away from the axis of the outer ring body 41 penetrates outward and cooperates with a limiting cap 47, and a second spring 48 is arranged on the push rod 46, and the second spring 48 acts between the outer ring body 41 and the limiting cap 47, and a force groove 49 is penetrated on the rod body of the push rod 46, and the force groove 49 has an inclined The outer ring body 41 has an inclined bottom surface, and an assembly hole 410 is penetrated on the end surface of the outer ring body 41. The assembly hole 410 is vertically penetrated with the lock hole 45 and corresponds to the force groove 49. A guide groove 411 is provided at the hole wall of the assembly hole 410. A pull rod 412 is matched through the assembly hole 410. An operating handle 413 is matched between the ends of the two pull rods 412. The operating handle 413 slides along the handle rod 21. A first pull rope 414 is matched through the operating handle 413, and the pull rod 412 is away from the operating handle 21. A first limiting cap 415 is provided at the end of the handle 413, and a third spring 416 is sleeved on the pull rod 412. The third spring 416 acts between the outer ring body 41 and the first limiting cap 416. A push block 417 cooperating with the guide groove 411 is provided on the pull rod 412. When the push block 417 slides along the guide groove 411, it acts on the inclined bottom surface of the force groove 49. At this time, the push rod 46 slides toward the direction of the tube body 1 and acts on the locking rod 35, so that the locking rod 35 disengages from the locking hole 45.

[0051] The above technical solution can be operated over a long distance through the first pull rope 414. When the first pull rope 414 is pulled down, the pull rod 412 is pulled, and the force groove 49 is acted on by the push block 417, so that the push rod pushes the locking rod 35 out of the locking hole 45 toward the direction of the tube body 1. At this time, the first spring 38 is released and the knocking rod 31 is stimulated.

[0052] After the triggering, the pull rope is released, and the pull rod is reset under the action of the third spring 416. After the pull rod is reset, the force on the push rod 46 disappears, and the push rod 46 is also reset under the action of the second spring.

[0053] When the next excitation is needed, the pull rope 32 is pulled so that the first spring is compressed again and the locking rod 35 is re-fitted into the locking hole 45 .

[0054] By operating the pull rope 32 and the first pull rope 414, the device can adapt to the assembly length of the handle bar.

[0055] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A knock signal experimental device, characterized in that: It includes a tube body, one end of which is provided with an opening, and the other end of which is installed with a handle assembly with adjustable length. A knocking device is slidably arranged inside the tube body, and a locking trigger device is arranged outside the tube body. The knocking device is locked by the locking trigger device. After reaching a predetermined position, the knocking device is triggered by the locking trigger device, so that the knocking device knocks the rock wall.

2. The knock signal experimental device according to claim 1, characterized in that: A bracket body is threadedly connected to the opening of the tube body, and under the support of the bracket body, the opening of the tube body is separated from the rock wall.

3. The knock signal experimental device according to claim 1, characterized in that: The handle assembly comprises a plurality of handle rods connected to each other, the interior of the handle rods is hollow, and the knocking device cooperates with the handle rods.

4. The knock signal experimental device according to claim 3, characterized in that: The knocking device includes a knocking rod, which is coaxial with the tube body. A pull rope is fixed to the right end of the knocking rod, and the pull rope extends outward after passing through the handle rod. A sliding sleeve is fixed to the knocking rod, and the sliding sleeve fits the inner wall of the tube body. A sliding groove is arranged at the outer wall of the tube body. The sliding sleeve is provided with a stepped hole at a position corresponding to the sliding groove, and a limiting ring is arranged at the orifice of the stepped hole. The limiting ring is matched in the sliding groove and can slide along the sliding groove. A locking rod is arranged in the stepped hole, and a sliding ring is arranged at the bottom of the locking rod. The limiting ring forms a limit for the outward sliding of the sliding ring. A spring is filled in the stepped hole, and the spring acts on the locking rod. Under the action of the spring, the locking rod extends to the outside of the sliding groove. A first spring is matched through the sliding sleeve, and the first spring acts between the inner end surface of the tube body and the sliding sleeve. When the first spring is released, the knocking rod is elastically excited to the left, and the locking trigger device cooperates with the locking rod.

5. The knock signal experimental device according to claim 4, characterized in that: The left end of the knocking rod is detachably matched with a knocking block.

6. The knocking signal experimental device according to claim 4, characterized in that: The locking trigger device includes an outer ring body, which cooperates with the tube body, a screw for locking with the tube body is arranged on the outside of the outer ring body, a slider for cooperating with the slide groove is arranged on the inside of the outer ring body, and the slider is detachable, and an inclined groove for introducing the locking rod is arranged inside the outer ring body, and a locking hole for cooperating with the locking rod is arranged at the end of the inclined groove. When the locking rod slides into the inclined groove, the spring is compressed, and when the locking rod corresponds to the locking hole, the spring is released, and the locking hole radially penetrates the outer ring body, and a push rod is slidably arranged in the lock hole, and the end of the push rod away from the axis of the outer ring body penetrates outward and cooperates with a limiting cap, and a second spring is arranged on the push rod, and the second spring acts between the outer ring body and the limiting cap. A force groove is penetrated on the rod body of the push rod, The force groove has an inclined bottom surface, and an assembly hole is penetrated on the end surface of the outer ring body. The assembly hole is perpendicular to the lock hole and corresponds to the force groove. A guide groove is arranged on the hole wall of the assembly hole, and a pull rod is matched through the assembly hole. An operating handle is matched between the ends of the two pull rods, and the operating handle slides along the handle rod. A first pull rope is matched through the operating handle. A first limiting cap is arranged at the end of the pull rod away from the operating handle, and a third spring is sleeved on the pull rod. The third spring acts between the outer ring body and the first limiting cap. A push block matching the guide groove is arranged on the pull rod. When the push block slides along the guide groove, it acts on the inclined bottom surface of the force groove. At this time, the push rod slides toward the direction of the tube body and acts on the lock rod, so that the lock rod disengages from the lock hole.

Images