A rock fissure water collection device

Abstract

The present invention provides a rock fissure water collection device, belonging to the field of rock fissure water collection technology. It includes: a collection mechanism, used to collect rock fissure water, whose outer wall is covered with a first water collection layer; a support and protection mechanism, whose interior is hollow to form a receiving space, one end of the support and protection mechanism is connected to the collection mechanism, and the outer wall of the support and protection mechanism is covered with a second water collection layer, and the first water collection layer and the second water collection layer do not contact each other; a negative pressure storage mechanism, which is connected to the collection mechanism through a liquid delivery pipeline, a part of the liquid delivery pipeline is located in the receiving space, and the rock fissure water collected by the collection mechanism is transported to the negative pressure storage mechanism through the liquid delivery pipeline under the negative pressure of the negative pressure storage mechanism for storage. The present invention has the advantages of simple structure, low cost, good fissure water collection effect, can quickly capture fissure water samples after rainfall, high stability, easy to carry, easy to use, and can meet the needs of collecting fissure water of different depths in karst areas.

Description

Technical Field

[0001] The invention relates to the technical field of rock fissure water collection, and in particular to a rock fissure water collection device. Background Art

[0002] In the prior art, in the process of studying the fissure water in the rock, it is necessary to collect the fissure water in the rock. However, the current mainstream collection method is: in the process of collecting the rock fissure water, it is necessary to excavate the rock profile for collection, which is highly destructive and has an irreversible impact on the ecological environment. The excavation of the rock profile causes the fissure to be exposed to the environment, which changes the physical and chemical indicators of the fissure water, and the collection cost is high and the effect is poor. Therefore, a method of collecting rock fissure water by drilling is also proposed. Although it is less destructive and basically does not damage the ecological environment, it is difficult to collect it in this way because the content of rock fissure water itself is relatively low, resulting in a small content of fissure water in the rock collected in the end, and the collection effect is poor, which is not enough to support subsequent research, and the prior art is difficult to collect the fissure water in deep boreholes, and the fissure water at the bottom of the borehole is also easily mixed with the upper fissure water, which is not conducive to analysis and research. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a rock fissure water collection device to solve the above-mentioned problems of collecting rock fissure water by digging rock profiles, which is highly destructive and has irreversible effects on the ecological environment. The excavation of rock profiles causes the fissures to be exposed to the environment, which changes the physical and chemical indicators of the fissure water, and the collection cost is high and the effect is poor; and the method of collecting by drilling, the content of the fissure water in the collected rock is small, the collection effect is poor, which is not enough to support subsequent research, it is difficult to collect fissure water in deep boreholes, and the fissure water at the bottom of the borehole is also easily mixed by the upper fissure water, which is not conducive to analysis and research.

[0004] In order to achieve the above-mentioned object, an embodiment of the present invention provides a rock fissure water collection device, the device comprising:

[0005] A collection mechanism, wherein the outer wall of the collection mechanism is covered with a first water collection layer, and the collection mechanism is used to collect rock fissure water;

[0006] A support and protection mechanism, wherein the interior of the support and protection mechanism is hollow to form a receiving space, one end of the support and protection mechanism is connected to the collection mechanism, and the outer wall of the support and protection mechanism is covered with a second water-collecting layer, and the first water-collecting layer and the second water-collecting layer are not in contact with each other;

[0007] The negative pressure storage mechanism is connected to the collection mechanism through a liquid delivery pipeline, a part of which is located in the accommodating space of the supporting and protecting mechanism. The rock fissure water collected by the collection mechanism is transported to the negative pressure storage mechanism through the liquid delivery pipeline for storage under the negative pressure of the negative pressure storage mechanism.

[0008] Optionally, the collecting mechanism is a clay head.

[0009] Optionally, the first water collection layer and the second water collection layer are both absorbent cotton.

[0010] Optionally, the supporting and protecting mechanism is a sleeve with a hollow interior.

[0011] Optionally, the negative pressure storage mechanism is a negative pressure bottle having an internal accommodating space.

[0012] Optionally, the device further comprises:

[0013] The negative pressure stabilizing mechanism is used to keep the negative pressure in the negative pressure storage mechanism stable.

[0014] Optionally, a pressure sensor is provided on the negative pressure storage mechanism to obtain the pressure value in the negative pressure storage mechanism;

[0015] The negative pressure stabilization mechanism comprises:

[0016] Protective case;

[0017] An air pump is arranged inside the protective shell, and the air pump is connected to the negative pressure storage mechanism through an air extraction pipeline;

[0018] The controller is arranged in the protective shell and connected to the vacuum pump and the pressure sensor. It is used to control the vacuum pump to pump air when the pressure value in the negative pressure storage mechanism is greater than a set threshold, and to control the vacuum pump to stop pumping air when the pressure value in the negative pressure storage mechanism is less than or equal to the set threshold.

[0019] Optionally, the controller is further used for:

[0020] When a collection instruction is received, the vacuum pump is controlled to start working, and after a preset time period from the moment the collection instruction is received, the vacuum pump is controlled to stop working; the collection instruction is triggered by a button.

[0021] Optionally, a handle is provided at the top of the protective shell;

[0022] A plurality of retractable support rods are arranged at intervals at the bottom end of the protective shell.

[0023] Optionally, the support rod comprises:

[0024] A fixed sleeve, wherein the interior of the fixed sleeve is hollow, the top of the fixed sleeve is fixed to the bottom of the protective shell, and the inner wall of the bottom of the fixed sleeve is provided with an internal thread;

[0025] A movable rod, the top of which is located in the fixed sleeve, and the outer wall of the top of the movable rod is provided with an external thread, the movable rod is fixed to the fixed sleeve by threads, and the height of the protective shell is adjusted by rotating the movable rod.

[0026] This technical solution has the advantages of simple structure, low cost, good fissure water collection effect, can quickly capture fissure water samples after rainfall, high stability, easy to carry, and convenient to use. It can meet the needs of karst areas for accurate collection of fissure water at different depths, and only requires drilling into the rock. The borehole has a small diameter, low destructiveness, little impact on the ecology, good borehole sealing, no pollution to the fissure water, simple, fast, and low cost.

[0027] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a cross-sectional schematic diagram of the first rock fissure water collection device provided by the present invention;

[0030] Figure 2 It is a structural schematic diagram of a second rock fissure water collection device provided by the present invention;

[0031] Figure 3 It is a partial structural schematic diagram of the negative pressure stabilization mechanism provided by the present invention;

[0032] Figure 4 It is a schematic diagram of the working process of the negative pressure stabilization mechanism provided by the present invention;

[0033] Figure 5 It is a structural schematic diagram of the support rod provided by the present invention.

[0034] 1-collection mechanism; 2-first water collection layer; 3-support and protection mechanism;

[0035] 4-second water collection layer; 5-negative pressure storage mechanism; 6-liquid delivery pipeline;

[0036] 7-negative pressure stabilizing mechanism; 31-blocking sheet; 51-pressure sensor;

[0037] 52-liquid level sensor; 71-protective shell; 72-air pump;

[0038] 73-exhaust pipe; 74-controller; 75-handle;

[0039] 76-support rod; 761-fixed sleeve; 762-movable rod. Implementation

[0040] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention. In the embodiment of the present invention, unless otherwise stated, the directional words such as "up, down, left, right" used generally refer to the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, or the directional or positional relationship in which the product of the invention is usually placed when used. The terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. The terms "parallel", "vertical", etc. do not mean that the components are absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted. The terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "roughly" and "substantially" are intended to illustrate that the relevant content does not require absolute accuracy, but may have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "substantially" have similar meanings to the above. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. 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] Figure 1 It is a cross-sectional schematic diagram of the first rock fissure water collection device provided by the present invention; Figure 2 It is a structural schematic diagram of a second rock fissure water collection device provided by the present invention; Figure 3It is a partial structural schematic diagram of the negative pressure stabilization mechanism provided by the present invention; Figure 4 It is a schematic diagram of the working process of the negative pressure stabilization mechanism provided by the present invention; Figure 5 It is a structural schematic diagram of the support rod provided by the present invention.

[0042] like Figure 1 As shown, this embodiment provides a rock fissure water collection device, the device comprising:

[0043] A collection mechanism 1, wherein the outer wall of the collection mechanism 1 is covered with a first water collection layer 2, and the collection mechanism 1 is used to collect rock fissure water;

[0044] A supporting and protecting mechanism 3, wherein the interior of the supporting and protecting mechanism 3 is hollow to form a containing space, one end of the supporting and protecting mechanism 3 is connected to the collecting mechanism 1, and the outer wall of the supporting and protecting mechanism 3 is covered with a second water collecting layer 4, and the first water collecting layer 2 and the second water collecting layer 4 are not in contact with each other;

[0045] The negative pressure storage mechanism 5 is connected to the collection mechanism 1 through a liquid delivery pipe 6, a part of which is located in the accommodating space of the supporting and protecting mechanism 3. The rock fissure water collected by the collection mechanism 1 is transported to the negative pressure storage mechanism 5 through the liquid delivery pipe 6 for storage under the negative pressure of the negative pressure storage mechanism 5.

[0046] In this embodiment, before collecting rock fissure water, a portable core drill is used to drill a hole vertically or horizontally in the rock, and the diameter of the hole is slightly larger than the diameter of the collection mechanism 1 and the support and protection mechanism 3; in actual operation, the thickness of the first water-collecting layer 2 and the second water-collecting layer 4 can also be adjusted according to the diameter of the hole, so that the device and the hole can be adapted; after the drilling is completed and the core is taken out, the position of the fissure where the water sample needs to be collected (such as the depth) is recorded, and the collection mechanism 1 is inserted from the hole so that the collection mechanism 1 is located at the position of the fissure where the water sample needs to be collected, and negative pressure is formed in the negative pressure storage mechanism 5 by means of pumping air, etc., to start collecting rock fissure water. Among them, the first water-collecting layer 2 is capable of absorbing the fissure water at the fissure position where water samples need to be collected, and penetrates into the collection mechanism 1, and is transported to the negative pressure storage mechanism 5 through the liquid delivery pipe 6; the support and protection mechanism 3 can protect the liquid delivery pipe 6 to ensure the normal delivery of the fissure water; the second water-collecting layer 4 arranged on the outer wall of the support and protection mechanism 3 can absorb water, and is arranged at a certain distance from the first water-collecting layer 2 to isolate the fissure water at other positions, so as to ensure that the fissure water collected by the collection mechanism 1 is only the fissure water at the fissure position where water samples need to be collected, so as to improve the accuracy of the collection. In addition, since the negative pressure storage mechanism 5 is under negative pressure inside, and it is connected to the collection mechanism 1 through the liquid delivery pipe 6, there is also a certain negative pressure inside the collection mechanism 1.

[0047] Furthermore, the collecting mechanism 1 is a clay head.

[0048] Specifically, since the negative pressure storage mechanism 5 is connected to the clay head through the liquid delivery pipe 6, there is also a certain negative pressure in the clay head. In order to ensure the collection effect of the fissure water, the liquid delivery pipe 6 is arranged inside the clay head.

[0049] Furthermore, the first water collection layer 2 and the second water collection layer 4 are both absorbent cotton.

[0050] Specifically, the first water-collecting layer 2 and the second water-collecting layer 4 may be made of PVA absorbent cotton, which can ensure the adsorption effect of fissure water.

[0051] Furthermore, the supporting and protecting mechanism 3 is a sleeve with a hollow interior.

[0052] Specifically, the supporting and protecting mechanism 3 is a hollow PVC tube. The PVC tube has a certain structural strength, which is convenient for delivering the collecting mechanism 1 into the hole. At the same time, a holding space is formed inside to accommodate the liquid conveying pipeline 6 to prevent the liquid conveying pipeline 6 from being squeezed, thereby ensuring the normal delivery of fissure water.

[0053] In another embodiment, in order to prevent rainwater, shallow rock fissure water, etc. from penetrating downward through the hole wall, a second water-collecting layer 4 is provided on the outer wall of the casing to absorb water. Although there is a certain interval between the first water-collecting layer 2 and the second water-collecting layer 4, in order to prevent the water collected by the second water-collecting layer 4 from continuing to move downward and infiltrating into the first water-collecting layer 2, a blocking sheet 31 is integrally formed on the outer wall of the casing near the end of the collection mechanism 1. The cross-section of the blocking sheet 31 is an L-shaped structure, and a holding space is formed between the blocking sheet 31 and the outer wall of the casing, such as Figure 2 As shown, the end of the second water-collecting layer 4 is located in the accommodation space, and the accommodation space formed between the blocking sheet 31 and the outer wall of the sleeve is used to block the water collected by the second water-collecting layer 4 to prevent the water from penetrating downwards.

[0054] In this embodiment, the clay head and the PVC tube can be glued and fixed to each other. The clay head is set as a cylinder, and the first end of the clay head is spherical. The second end of the clay head is provided with a step portion, which is located inside the PVC tube and contacts the inner wall of the PVC tube. The step portion is glued and fixed to the inner wall of the PVC tube by glue. In order to increase the stability of the connection position, multiple annular protrusions are provided on the step portion and the inner wall of the PVC tube to ensure that the clay head is separated from the PVC tube during the outward pulling process. A closed cavity is provided inside the clay head, and the liquid delivery pipeline 6 is located in the closed cavity, so that the closed cavity also forms a negative pressure to achieve the collection of fissure water.

[0055] Furthermore, the negative pressure storage mechanism 5 is a negative pressure bottle having an internal accommodation space.

[0056] In this embodiment, the negative pressure storage mechanism 5 adopts an ordinary sealed bottle, and the gas in the bottle can be evacuated by a vacuum pump to make it a negative pressure bottle.

[0057] Furthermore, if Figure 2 As shown, the device also includes:

[0058] The negative pressure stabilizing mechanism 7 is used to keep the negative pressure in the negative pressure storage mechanism 5 stable.

[0059] In this embodiment, during the fissure water collection process, as the collection time goes by, the negative pressure storage mechanism 5 will slowly decrease, reducing the fissure water adsorption effect. Therefore, the negative pressure in the negative pressure storage mechanism 5 is kept stable by the negative pressure stabilization mechanism 7.

[0060] Furthermore, if Figure 2-4 As shown, the negative pressure storage mechanism 5 is provided with a pressure sensor 51 for obtaining the pressure value in the negative pressure storage mechanism 5;

[0061] The negative pressure stabilization mechanism 7 comprises:

[0062] Protective shell 71;

[0063] An air pump 72 is disposed inside the protective shell 71, and the air pump 72 is connected to the negative pressure storage mechanism 5 through an air extraction pipeline 73;

[0064] The controller 74 is arranged in the protective shell 71 and is connected to the vacuum pump 72 and the pressure sensor 51. It is used to control the vacuum pump 72 to pump air when the pressure value in the negative pressure storage mechanism 5 is greater than a set threshold, and to control the vacuum pump 72 to stop pumping air when the pressure value in the negative pressure storage mechanism 5 is less than or equal to the set threshold.

[0065] Specifically, in the present embodiment, the vacuum pump 72 and the controller 74 are powered by a power supply, which is a prior art known to those skilled in the art and will not be described in detail here.

[0066] In this embodiment, the air pump 72 and the controller 74 are arranged in the protective shell 71 to protect the air pump 72 and the controller 74. The sealing structure of the protective shell 71 can prevent rainwater from entering the protective shell 71. In order to facilitate maintenance and utilization, the protective shell 71 is provided with an openable and closable housing door.

[0067] The pressure value in the negative pressure storage mechanism 5 collected by the pressure sensor 51 is obtained through the controller 74. When the pressure value in the negative pressure storage mechanism 5 is greater than the set threshold, the vacuum pump 72 is controlled to pump air. When the pressure value in the negative pressure storage mechanism 5 is less than or equal to the set threshold, the vacuum pump 72 is controlled to stop pumping air. This can ensure that the negative pressure value in the negative pressure storage mechanism 5 is in a stable state, and realize automatic adjustment to ensure the effect of fissure water collection.

[0068] More specifically, the controller 74 controls the vacuum pump 72 in the following manner: the operating frequency of the vacuum pump 72 can be changed through a frequency converter to change its operating power, or the power on and off of the vacuum pump 72 can be directly controlled through a power switch, thereby achieving control of the vacuum pump 72.

[0069] More specifically, if Figure 4 As shown, the controller 74 can be configured as a single chip microcomputer, a control chip, etc.

[0070] Furthermore, the controller 74 is also used for:

[0071] When the acquisition instruction is received, the vacuum pump 72 is controlled to start working, and after a preset time period from the moment the acquisition instruction is received, the vacuum pump 72 is controlled to stop working; the acquisition instruction is triggered by a button.

[0072] In this embodiment, in order to accurately determine when the device stops running, in addition to presetting the working time of the device in the controller 74, a liquid level sensor 52 can also be set in the negative pressure storage mechanism 5 (i.e., the negative pressure bottle), and the liquid level sensor 52 is connected to the controller 74. When the liquid level in the negative pressure storage mechanism 5 (i.e., the negative pressure bottle) reaches the set liquid level value and / or after the preset time has passed since the moment of receiving the collection instruction, the controller 74 controls the air pump 72 to stop working. Among them, the collection instruction is triggered by a button, such as after the device is installed, the collection instruction is triggered when the power button of the controller is turned on. The controller 74 receives the collection instruction to start the fissure water collection, and controls the air pump 72 to start working. When it starts working, the negative pressure storage mechanism 5 does not meet the set value, so the air pump 72 pumps the pressure value in the negative pressure storage mechanism 5 to less than or equal to the set threshold, and the air pump 72 temporarily stops pumping.

[0073] In another embodiment, a valve is provided on the liquid delivery pipeline 6, and the valve is connected to the controller 74. When the valve is working normally, the valve is in a conducting state. When the valve is energized, the electromagnetic coil generates an electromagnetic suction force to suck up the valve core, so that the pipeline closing element is pressed on the valve seat, thereby disconnecting the pipeline. Specifically, a liquid electromagnetic valve with a working voltage of 3.5V can be used. When the liquid level in the negative pressure storage mechanism 5 (i.e., the negative pressure bottle) reaches the set liquid level value and / or after a preset time period from the moment of receiving the collection instruction, the controller 74 controls the vacuum pump 72 to stop working, and at the same time, controls the valve on the liquid delivery pipeline 6 to close.

[0074] Furthermore, if Figure 2 As shown, a handle 75 is provided at the top of the protective shell 71;

[0075] A plurality of retractable support rods 76 are spaced apart at the bottom end of the protective shell 71 .

[0076] Specifically, since the collection of fissure water in rocks is usually carried out in a field environment, in order to facilitate the movement of the protective shell 71, a handle 75 is provided on the top of the protective shell 71, and the handle 75 is rotatably connected to the protective shell 71 through a pin shaft.

[0077] In addition, in order to stably place the protective shell 71 on the uneven ground in the wild, a plurality of retractable support rods 76 are arranged at intervals at the bottom of the protective shell 71. The retractable amount of the support rods 76 is adjusted accordingly according to the inclination of the ground to achieve stable support of the protective shell 71. At the same time, a certain distance is made between the protective shell 71 and the ground to prevent rainwater on the surface from entering the protective shell 1 in case of rain. In another embodiment, in order to ensure that the protective shell 71 can be stably placed, the bottom end of the support rod 76 is set to a pointed structure to ensure that it can be inserted into the ground surface to achieve the fixation of the protective shell 71.

[0078] Furthermore, if Figure 5 As shown, the support rod 76 includes:

[0079] A fixed sleeve 761, wherein the interior of the fixed sleeve 761 is hollow, and the top of the fixed sleeve 761 is fixed to the bottom of the protective shell 71, and the inner wall of the bottom of the fixed sleeve 761 is provided with an internal thread;

[0080] The movable rod 762 has a top end located in the fixed sleeve 761, and an outer wall of the top end of the movable rod 762 is provided with an external thread. The movable rod 762 is fixed to the fixed sleeve 761 by threads, and the height of the protective shell 71 can be adjusted by rotating the movable rod 762.

[0081] Specifically, in this embodiment, the support rod 76 is configured to include a fixed sleeve 761 and a movable rod 762, and the fixed sleeve 761 and the movable rod 762 are fixed by threads, and the extension length of the movable rod 762 relative to the fixed sleeve 761 can be adjusted by rotating the movable rod 762, thereby adjusting the height of the protective shell 71. The support rods 76 can be configured as four, distributed in a rectangular structure, or configured as three, distributed in a triangular structure.

[0082] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0083] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0084] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including a number of instructions to enable a single-chip microcomputer, a chip or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0085] In addition, various implementation modes of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed by the embodiments of the present invention.

Claims

1. A rock fissure water collection device, characterized in that: The device comprises: A collection mechanism (1), wherein the outer wall of the collection mechanism (1) is coated with a first water collection layer (2), and the collection mechanism (1) is used to collect rock fissure water. The collection mechanism (1) is a clay head, and a closed cavity is arranged inside the clay head; A support and protection mechanism (3), wherein the support and protection mechanism (3) is hollow inside to form a receiving space, one end of the support and protection mechanism (3) is connected to the collection mechanism (1), and the outer wall of the support and protection mechanism (3) is covered with a second water-collecting layer (4), the first water-collecting layer (2) and the second water-collecting layer (4) are not in contact with each other, the support and protection mechanism (3) is a sleeve with a hollow interior, and a blocking sheet (31) is integrally formed on the outer wall of the end of the sleeve close to the collection mechanism (1), and a receiving space is formed between the blocking sheet (31) and the outer wall of the sleeve, and the end of the second water-collecting layer (4) is located in the receiving space; The negative pressure storage mechanism (5) is connected to the collection mechanism (1) via a liquid delivery pipeline (6), a portion of the liquid delivery pipeline (6) is located in the accommodation space of the support and protection mechanism (3), and the end of the liquid delivery pipeline (6) is located in the closed cavity. The rock fissure water collected by the collection mechanism (1) is transported to the negative pressure storage mechanism (5) through the liquid delivery pipeline (6) for storage under the negative pressure of the negative pressure storage mechanism (5); The device also includes: A negative pressure stabilizing mechanism (7) for maintaining the negative pressure in the negative pressure storage mechanism (5) stable; the negative pressure storage mechanism (5) is provided with a pressure sensor (51) for acquiring the pressure value in the negative pressure storage mechanism (5); The negative pressure stabilizing mechanism (7) comprises: Protective shell (71); An air pump (72) is arranged inside the protective shell (71), and the air pump (72) is connected to the negative pressure storage mechanism (5) via an air extraction pipeline (73); a controller (74), arranged in the protective shell (71), connected to the air extraction pump (72) and the pressure sensor (51), and used for controlling the air extraction pump (72) to extract air when the pressure value in the negative pressure storage mechanism (5) is greater than a set threshold, and controlling the air extraction pump (72) to stop extracting air when the pressure value in the negative pressure storage mechanism (5) is less than or equal to the set threshold; The controller (74) is also used to: When a collection instruction is received, the vacuum pump (72) is controlled to start working, and after a preset time period has passed since the collection instruction was received, the vacuum pump (72) is controlled to stop working; the collection instruction is triggered by a button.

2. The rock fissure water collection device according to claim 1, characterized in that: The first water collection layer (2) and the second water collection layer (4) are both absorbent cotton.

3. The rock fissure water collection device according to claim 1, characterized in that: The negative pressure storage mechanism (5) is a negative pressure bottle having an internal accommodation space.

4. The rock fissure water collection device according to claim 1, characterized in that: A handle (75) is provided at the top of the protective shell (71); A plurality of retractable support rods (76) are arranged at intervals at the bottom end of the protective shell (71).

5. The rock fissure water collection device according to claim 4, characterized in that: The support rod (76) comprises: A fixed sleeve (761), wherein the interior of the fixed sleeve (761) is hollow, and the top end of the fixed sleeve (761) is fixed to the bottom end of the protective shell (71), and the inner wall of the bottom end of the fixed sleeve (761) is provided with an internal thread; A movable rod (762), the top end of the movable rod (762) is located in the fixed sleeve (761), and the outer wall of the top end of the movable rod (762) is provided with an external thread, the movable rod (762) and the fixed sleeve (761) are fixed by threads, and the height of the protective shell (71) is adjusted by rotating the movable rod (762).

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