Water stopping equipment for geological pumping test

Abstract

The utility model relates to the technical field of geological exploration, and discloses a water stop device for a geological water pumping test, which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is positioned above the main body mechanism, and the main body mechanism comprises a water pumping tank, a first water cavity, a second water cavity and a water inlet cylinder, the first water cavity is fixedly arranged at the upper end of the interior of the water pumping box, the second water cavity is fixedly arranged at the lower end of the interior of the water pumping box, the water inlet cylinder is fixedly installed at the front end of the water pumping box, and the main body mechanism further comprises a filter screen, a supporting plate and a waterproof motor. According to the water stopping equipment for the geological water pumping test, by installing the main body mechanism, when a water pumping box is used for water stopping operation of the geological test, a filter screen can filter pumped underground water, automatic cleaning of the filter screen is achieved in cooperation with the design of a waterproof motor and a scraper, the situation that the filter screen is blocked due to impurity accumulation is avoided, and the water stopping equipment is convenient to use. Therefore, stable operation of geological water pumping operation is guaranteed, and the protective property of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a water-stopping device used for geological pumping tests. Background Art

[0002] The geological pumping test is a test method used to evaluate the impact of groundwater level drop on underground structures and soil stability. In the geological pumping test, water-stopping equipment is required to isolate different aquifers to facilitate water sampling of the target water layer, thereby ensuring the reliability of the geological survey results.

[0003] The existing patent document with technical disclosure number CN209494560U provides a water-stopping device for hydrogeological exploration pumping test. The utility model serves the purpose of auxiliary water blocking and achieves a better water blocking effect, thereby facilitating the extraction of water from the lower part of the hole and making the lower pressure plate move more stably when subjected to water pressure resistance.

[0004] However, the existing water-stopping equipment used in geological pumping tests is not convenient for avoiding filter clogging when in use. When the existing water-stopping equipment for geological pumping tests filters groundwater, impurities adhere to the surface of the filter under the impact of water flow. If they are not cleaned in time, it will directly affect the normal sampling operation in the geological pumping test, which is not convenient for meeting people's usage needs. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a water-stopping device for geological pumping test, so as to solve the problem in the above background technology that the existing water-stopping device for geological pumping test is not convenient to avoid filter blockage when in use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water-stopping device for geological pumping test, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located above the main mechanism, and the main mechanism comprises a pumping box, a first water chamber, a second water chamber and a water inlet cylinder, wherein the first water chamber is fixedly arranged at the upper end inside the pumping box, the second water chamber is fixedly arranged at the lower end inside the pumping box, and the water inlet cylinder is fixedly installed at the front end of the pumping box;

[0009] The main body structure also includes a filter, a support plate, a waterproof motor, a connecting rod and a scraper. The filter is fixedly installed inside the water inlet cylinder, the support plate is fixedly installed at the front end of the water inlet cylinder, the waterproof motor is fixedly installed at the front end of the support plate, the connecting rod is fixedly installed at the transmission end at the rear end of the waterproof motor, and the scraper is fixedly installed at the outer end of the connecting rod.

[0010] Preferably, the auxiliary mechanism comprises a water pumping pipe, which is fixedly mounted on the upper end of the water pumping box, and the lower end of the water pumping pipe extends to the interior of the water pumping box.

[0011] Preferably, the auxiliary mechanism further includes a transfer tube and a first water pipe, the transfer tube is fixedly installed at the lower end of the water pumping pipe, the first water pipe is fixedly installed at the lower end of the transfer tube, and the first water pipe is located inside the first water cavity.

[0012] Preferably, the auxiliary mechanism also includes a second water pipe and a water-swellable waterstop strip, wherein the second water pipe is fixedly mounted on the lower end of the transfer tube, the lower end of the second water pipe extends to the interior of the second water cavity, and the water-swellable waterstop strip is fixedly mounted on the outer end of the pumping box.

[0013] Preferably, the auxiliary mechanism further comprises a water-blocking airbag and an air guide tube, wherein the water-blocking airbag is fixedly mounted on the outer end of the water pumping box, the water-blocking airbag is located above the water-swellable water-stop strip, and the air guide tube is fixedly mounted on the upper end of the water-blocking airbag.

[0014] Preferably, the auxiliary mechanism further comprises a hydraulic cylinder and an adjusting rod, wherein the hydraulic cylinder is fixedly mounted at the rear end inside the water pumping box, and the adjusting rod is fixedly mounted at the transmission end at the front end of the hydraulic cylinder.

[0015] Preferably, the auxiliary mechanism further comprises a blocking plate, the blocking plate is fixedly mounted on the front end of the adjusting rod, and the blocking plate is movably connected to the water inlet cylinder.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The water-stopping equipment for geological pumping test, by installing the main body mechanism, can realize that when the pumping box is used for water-stopping operation of geological test, the filter can filter the extracted groundwater, and the design of waterproof motor and scraper can realize automatic cleaning of the filter, avoiding the situation that the filter is blocked due to accumulation of impurities, so as to ensure the stable progress of geological pumping operation and improve the protection of the equipment;

[0018] 2. The water-stopping device used for geological pumping test, by installing auxiliary mechanisms, realizes that when the device is in use, the design of the water-expanding water-stopping strip and the water-blocking airbag provides double protection for the water intake hole, so as to reduce the interference with the sample in the stratified water extraction operation, improve the accuracy of the geological pumping test, and improve the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2This is a schematic diagram of the three-dimensional structure of the water pumping box of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the water inlet cylinder of the utility model;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the local details of the main mechanism of the utility model.

[0023] In the figure: 1. Main mechanism; 101. Pumping box; 102. First water chamber; 103. Second water chamber; 104. Water inlet cylinder; 105. Filter; 106. Support plate; 107. Waterproof motor; 108. Connecting rod; 109. Scraper; 2. Auxiliary mechanism; 201. Pumping pipe; 202. Transfer pipe; 203. First water pipe; 204. Second water pipe; 205. Water-swellable waterstop strip; 206. Water-blocking airbag; 207. Air guide tube; 208. Hydraulic cylinder; 209. Adjusting rod; 210. Sealing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: a water-stopping device for geological pumping test, comprising a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located above the main mechanism 1, the main mechanism 1 comprises a pumping box 101, a first water chamber 102, a second water chamber 103 and a water inlet cylinder 104, the first water chamber 102 is fixedly arranged at the upper end inside the pumping box 101, the second water chamber 103 is fixedly arranged at the lower end inside the pumping box 101, and the water inlet cylinder 104 is fixedly installed at the front end of the pumping box 101;

[0026] The main body mechanism 1 also includes a filter screen 105, a support plate 106, a waterproof motor 107, a connecting rod 108 and a scraper 109. The filter screen 105 is fixedly installed inside the water inlet cylinder 104, the support plate 106 is fixedly installed at the front end of the water inlet cylinder 104, the waterproof motor 107 is fixedly installed at the front end of the support plate 106, the connecting rod 108 is fixedly installed at the transmission end at the rear end of the waterproof motor 107, and the scraper 109 is fixedly installed at the outer end of the connecting rod 108. Groundwater enters the first water chamber 102 and the second water chamber 103 through the water inlet cylinder 104, the filter screen 105 filters the groundwater, and the waterproof motor 107 drives the connecting rod 108 to rotate, and the connecting rod 108 drives the scraper 109 to rotate, so as to clean the impurities attached to the filter screen 105 and ensure the normal water inlet operation of the water inlet cylinder 104.

[0027] The auxiliary mechanism 2 includes a water pumping pipe 201, which is fixedly installed at the upper end of the water pumping box 101, and the lower end of the water pumping pipe 201 extends to the inside of the water pumping box 101. The auxiliary mechanism 2 also includes a transfer pipe 202 and a first water pipe 203. The transfer pipe 202 is fixedly installed at the lower end of the water pumping pipe 201, and the first water pipe 203 is fixedly installed at the lower end of the transfer pipe 202. The first water pipe 203 is located inside the first water cavity 102. The auxiliary mechanism 2 also includes a second water pipe 204 and a water-expandable water stop strip 205. The second water pipe 204 is fixedly installed at the lower end of the transfer pipe 202. The lower end of the second water pipe 204 extends to the interior of the second water chamber 103, the water-expanding water-stop strip 205 is fixedly installed at the outer end of the water pumping box 101, the auxiliary mechanism 2 also includes a water-blocking airbag 206 and an air guide tube 207, the water-blocking airbag 206 is fixedly installed at the outer end of the water pumping box 101, the water-blocking airbag 206 is located above the water-expanding water-stop strip 205, the air guide tube 207 is fixedly installed at the upper end of the water-blocking airbag 206, the auxiliary mechanism 2 also includes a hydraulic cylinder 208 and an adjusting rod 209, the hydraulic cylinder 208 is fixedly installed at the rear end of the water pumping box 101, and the adjusting rod 209 is fixedly installed at the rear end of the water pumping box 101. The auxiliary mechanism 2 also includes a blocking plate 210 at the transmission end of the front end of the hydraulic cylinder 208. The blocking plate 210 is fixedly installed at the front end of the adjusting rod 209. The blocking plate 210 is movably connected to the water inlet cylinder 104. When the water pumping box 101 is used to perform water-stopping operations in geological water pumping tests, the staff lowers the water pumping box 101 into the water pumping hole and adjusts it to a depth suitable for sampling. The water-swelling water-stopping strip 205 expands when it encounters water to protect the water pumping box 101 and the inner wall of the water pumping hole. The staff inflates the water-blocking airbag 206 through the air guide tube 207 to expand the water-blocking airbag 206 to the ground. The water is lowered into layers for water stopping, and then the hydraulic cylinder 208 is started to drive the sealing plate 210 to separate from the water inlet cylinder 104. When it is necessary to extract the lower layer of water, the staff opens the valve of the second water pipe 204, and the water inside the second water cavity 103 is sucked into the pumping pipe 201 through the second water pipe 204 for sampling. When it is necessary to extract the upper layer of water, the staff closes the valve of the second water pipe 204, opens the valve of the first water pipe 203, and the water inside the first water cavity 102 is sucked into the pumping pipe 201 through the first water pipe 203 for sampling, thereby realizing water-stopping and layered sampling in the geological pumping test.

[0028] Working principle: When the pumping box 101 is used to perform water-stopping operations in geological water pumping tests, the staff lowers the pumping box 101 into the water pumping hole and adjusts it to a depth suitable for sampling. The water-stopping strip 205 expands when it encounters water to protect the inner wall of the pumping box 101 and the water pumping hole. The staff inflates the water-blocking airbag 206 through the air guide tube 207 to expand the water-blocking airbag 206 to perform layered water-stopping on the groundwater. Then the hydraulic cylinder 208 is started to drive the sealing plate 210 to separate from the water inlet cylinder 104. The groundwater enters the first water chamber 102 and the second water chamber 103 through the water inlet cylinder 104. The filter screen 105 filters the groundwater, and the waterproof motor 107 works. The connecting rod 108 is driven to rotate, and the connecting rod 108 drives the scraper 109 to rotate, so as to clean the impurities attached to the filter screen 105, and ensure the normal water inlet operation of the water inlet cylinder 104. When it is necessary to extract the lower layer of water, the staff opens the valve of the second water pipe 204, and the water inside the second water cavity 103 is sucked into the pumping pipe 201 through the second water pipe 204 for sampling. When it is necessary to extract the upper layer of water, the staff closes the valve of the second water pipe 204, opens the valve of the first water pipe 203, and the water inside the first water cavity 102 is sucked into the pumping pipe 201 through the first water pipe 203 for sampling, thereby realizing the water-stopping stratified sampling of the geological pumping test.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A water-stopping device for geological pumping test, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located above the main mechanism (1); the main mechanism (1) comprises a water pumping box (101), a first water chamber (102), a second water chamber (103) and a water inlet cylinder (104); the first water chamber (102) is fixedly arranged at the upper end inside the water pumping box (101); the second water chamber (103) is fixedly arranged at the lower end inside the water pumping box (101); and the water inlet cylinder (104) is fixedly installed at the front end of the water pumping box (101); The main body mechanism (1) further comprises a filter (105), a support plate (106), a waterproof motor (107), a connecting rod (108) and a scraper (109); the filter (105) is fixedly mounted inside the water inlet cylinder (104); the support plate (106) is fixedly mounted at the front end of the water inlet cylinder (104); the waterproof motor (107) is fixedly mounted at the front end of the support plate (106); the connecting rod (108) is fixedly mounted at the transmission end at the rear end of the waterproof motor (107); and the scraper (109) is fixedly mounted at the outer end of the connecting rod (108).

2. A water-stopping device for geological pumping test according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a water pumping pipe (201), wherein the water pumping pipe (201) is fixedly mounted on the upper end of the water pumping box (101), and the lower end of the water pumping pipe (201) extends to the interior of the water pumping box (101).

3. A water-stopping device for geological pumping test according to claim 2, characterized in that: The auxiliary mechanism (2) further comprises a transfer tube (202) and a first water pipe (203); the transfer tube (202) is fixedly mounted on the lower end of the water pumping pipe (201); the first water pipe (203) is fixedly mounted on the lower end of the transfer tube (202); and the first water pipe (203) is located inside the first water chamber (102).

4. A water-stopping device for geological pumping test according to claim 3, characterized in that: The auxiliary mechanism (2) further comprises a second water pipe (204) and a water-swellable water stop strip (205); the second water pipe (204) is fixedly mounted on the lower end of the transfer pipe (202); the lower end of the second water pipe (204) extends to the interior of the second water chamber (103); and the water-swellable water stop strip (205) is fixedly mounted on the outer end of the pumping box (101).

5. A water-stopping device for geological pumping test according to claim 4, characterized in that: The auxiliary mechanism (2) further comprises a water-blocking airbag (206) and an air guide tube (207); the water-blocking airbag (206) is fixedly mounted on the outer end of the water pumping box (101); the water-blocking airbag (206) is located above the water-swellable water stop strip (205); and the air guide tube (207) is fixedly mounted on the upper end of the water-blocking airbag (206).

6. A water-stopping device for geological pumping test according to claim 5, characterized in that: The auxiliary mechanism (2) further comprises a hydraulic cylinder (208) and an adjusting rod (209); the hydraulic cylinder (208) is fixedly mounted at the rear end inside the water pumping box (101); and the adjusting rod (209) is fixedly mounted at the transmission end at the front end of the hydraulic cylinder (208).

7. A water-stopping device for geological pumping test according to claim 6, characterized in that: The auxiliary mechanism (2) further comprises a blocking plate (210), wherein the blocking plate (210) is fixedly mounted on the front end of the adjusting rod (209), and the blocking plate (210) is movably connected to the water inlet cylinder (104).

Images