Water pressure experiment device

Abstract

The utility model provides a water pressing experiment device, which belongs to the technical field of experiment devices and comprises a water tank, a water suction pump, a water suction pipe, a water pressing pipe, a water injection straight pipe, a filter screen and a limit ring. The water suction pump is fixedly arranged on the water tank. The water pumping pipe penetrates through the top wall of the water tank so that one end of the water pumping pipe can be located in the water tank, and the other end of the water pumping pipe is fixedly connected with a water inlet of the water pump. One end of the water pressing pipe is fixedly connected with a water outlet of the water pump. The water injection straight pipe is vertically arranged and slidably penetrates through the top wall of the water tank. The filter screen is located in the water tank and fixedly attached to the bottom face of the water injection straight pipe. The water injection straight pipe is fixedly sleeved with the limiting ring, and the limiting ring abuts against the top face of the water tank. According to the water pressure experiment device provided by the utility model, when water is injected into the water tank through the water injection straight pipe, particulate matters in the water can be filtered by the filter screen, so that the phenomenon that the accuracy of a water pressure experiment is influenced when more particulate matters are contained in the water is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of experimental device technology, and more specifically, it relates to a water pressure test device. Background Technology

[0002] In geological exploration, borehole water pressure tests are often used to calculate and understand the development of rock fractures and permeability. During the test, a water-stop plug is inserted into the borehole, and then water is injected into a tube in the middle of the plug using a water pressure testing device. The water flows through this tube and then contacts the borehole wall. Water pressure tests typically use on-site water samples, which sometimes contain a significant amount of particulate matter, affecting the accuracy of the test. Utility Model Content

[0003] The purpose of this invention is to provide a water pressure test device, which aims to solve the problem that the accuracy of the water pressure test is affected when the water contains a large amount of particulate matter.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A water pressure testing device is provided, comprising a water tank, a water pump, a pumping pipe, a pressure pipe, a straight injection pipe, a filter screen, and a limiting ring. The water pump is fixedly mounted on the water tank. The pumping pipe penetrates the top wall of the water tank, such that one end of the pumping pipe is located inside the water tank, and the other end of the pumping pipe is fixedly connected to the inlet of the water pump. One end of the pressure pipe is fixedly connected to the outlet of the water pump. The straight injection pipe is vertically arranged and slides through the top wall of the water tank. The filter screen is located inside the water tank and is fixedly attached to the bottom surface of the straight injection pipe. The limiting ring is sleeved and fixed outside the straight injection pipe and abuts against the top surface of the water tank.

[0005] In one possible implementation, the water pressure testing device further includes a U-shaped handle. The U-shaped handle is connected to the water injection straight pipe, and the middle part of the U-shaped handle is a lifting section.

[0006] In one possible implementation, the U-shaped handle is rotatably connected to the middle of the water injection pipe about a horizontal axis, so that the lifting part can be located directly above the water injection pipe or on one side of the water injection pipe in the radial direction.

[0007] In one possible implementation, the water pressure testing device further includes two sets of connecting assemblies located on opposite sides of the radial direction of the water injection straight pipe. Each connecting assembly includes a fixed shaft and a rotating pipe. The fixed shaft is horizontally positioned and one end is fixedly connected to the water injection straight pipe. The rotating pipe is rotatably sleeved around the fixed shaft. The two ends of the U-shaped handle are respectively fixedly connected to the rotating pipes in the two sets of connecting assemblies.

[0008] In one possible implementation, the water pressure testing device further includes a fixing block and a limiting rod. The fixing block is fixed to the water tank. The limiting rod is located on one side of the radial direction of the water injection pipe, the limiting rod is horizontally positioned with one end facing the water injection pipe, the limiting rod slides through the fixing block, and the end face of the limiting rod facing the water injection pipe has an inwardly recessed portion. When the rotation of the U-shaped handle causes the lifting portion and the limiting rod to be on the same side of the water injection pipe, and the lifting portion and the recessed portion to be in the same horizontal space, the sliding of the limiting rod allows the recessed portion to fit against the lifting portion.

[0009] In one possible implementation, the water pressure testing device further includes a vehicle body. The vehicle body is used to support the water tank and is fixedly connected to the water tank.

[0010] In one possible implementation, the limiting rod has a quadrangular prism structure.

[0011] In one possible implementation, the side of the fixing block is provided with a threaded hole, and the water pressure testing device further includes a compression screw. The screw threaded into the threaded hole is used to compress the limiting rod.

[0012] In one possible implementation, the compression screw is a hand-tightening screw.

[0013] In one possible implementation, the water pressure testing device further includes two anti-detachment rings. Both anti-detachment rings are sleeved and fixed outside the limiting rod, and are respectively located on the side of the fixing block facing and away from the water injection straight pipe.

[0014] In this embodiment, the free end of the pressure pipe is connected to the pipe in the middle of the stop plug. Water is injected into the water tank through the injection straight pipe, and the water pump draws water from the water tank through the pumping pipe, then injects water into the pipe in the middle of the stop plug through the pressure pipe. When water is injected into the water tank through the injection straight pipe, the filter screen filters out particulate matter in the water, thus preventing the accuracy of the pressure test from being affected when the water contains a large amount of particulate matter. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of the water pressure test device provided in the embodiment of this utility model;

[0017] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the water pressure test device provided in an embodiment of the present utility model;

[0019] Figure 4 A schematic diagram of the structure of the water injection straight pipe and some components in the water pressure test device provided in this embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the limiting rod in the water pressure test device provided in this embodiment of the utility model.

[0021] In the diagram: 1. Water tank; 2. Water pump; 3. Pumping pipe; 4. Pressurizing pipe; 5. Water injection straight pipe; 6. Filter screen; 7. Limiting ring; 8. U-shaped handle; 81. Lifting part; 9. Connecting assembly; 91. Fixed shaft; 92. Rotating pipe; 10. Vehicle body; 110. Fixing block; 120. Limiting rod; 1201. Recessed part; 130. Extrusion screw; 140. Anti-detachment ring; 150. Flow meter; 160. Pressure gauge. Detailed Implementation

[0022] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and settings of connection relationships, positional relationships, power mechanisms, power supply systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and settings in a well-known manner.

[0024] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] The terms “length,” “width,” “up,” “down,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1 to 4 The water pressure testing device provided by this utility model will now be described. The water pressure testing device includes a water tank 1, a water pump 2, a pumping pipe 3, a pressure pipe 4, a straight water injection pipe 5, a filter screen 6, and a limiting ring 7. The water pump 2 is fixed to the water tank 1. The pumping pipe 3 penetrates the top wall of the water tank 1, so that one end of the pumping pipe 3 is located inside the water tank 1, and the other end of the pumping pipe 3 is fixedly connected to the inlet of the pumping pipe 2. One end of the pressure pipe 4 is fixedly connected to the outlet of the pumping pipe 2. The straight water injection pipe 5 is vertically arranged and slides through the top wall of the water tank 1. The filter screen 6 is located inside the water tank 1 and is fixedly attached to the bottom surface of the straight water injection pipe 5. The limiting ring 7 is sleeved and fixed outside the straight water injection pipe 5 and abuts against the top surface of the water tank 1.

[0028] The water pressure test apparatus provided by this utility model, compared with the prior art, has a free end of the water pressure pipe 4 connected to the pipe in the middle of the stop plug. Water is injected into the water tank 1 through the water injection straight pipe 5, and the water pump 2 draws water from the water tank 1 through the water pumping pipe 3, and then injects water into the pipe in the middle of the stop plug through the water pressure pipe 4. When water is injected into the water tank 1 through the water injection straight pipe 5, the filter screen 6 filters out particulate matter in the water, thus avoiding the impact on the accuracy of the water pressure test when the water contains a large amount of particulate matter.

[0029] In this embodiment, the limiting ring 7 prevents the water injection pipe 5 from sliding entirely into the water tank 1. When there are many particles on the filter screen 6, the water injection pipe 5 slides upward and detaches from the top wall of the water tank 1, then the particles inside the water injection pipe 5 are poured out, and the filter screen 6 is cleaned.

[0030] In the prior art, the water-stop plug is generally inserted into the borehole through a hollow drill rod, and the drill rod is connected to the pipe in the middle of the water-stop plug. Therefore, in this embodiment, the free end of the water-pressing pipe 4 can be connected to the drill rod to indirectly achieve the connection with the water-stop plug.

[0031] In order to measure the pressure and flow rate inside the water pressure pipe 4, a flow meter 150 and a pressure gauge 160 can be installed on the water pressure pipe 4.

[0032] In some embodiments, see Figure 2 The water pressure test device also includes a U-shaped handle 8. The U-shaped handle 8 is connected to the water injection straight pipe 5, and the middle part of the U-shaped handle 8 is a lifting part 81. The operator can hold the lifting part 81 and then drive the water injection straight pipe 5 to slide upward and separate from the top wall of the water tank 1.

[0033] In some embodiments, see Figure 2 The U-shaped handle 8 is rotatably connected to the middle of the water injection straight pipe 5 around a horizontal axis, so that the lifting part 81 can be positioned directly above the water injection straight pipe 5 or on one radial side of the water injection straight pipe 5. When it is necessary to slide the water injection straight pipe 5 upward against the top wall of the water tank 1, the U-shaped handle 8 is driven to rotate, so that the lifting part 81 reaches directly above the water injection straight pipe 5, and then the operator can hold the lifting part 81 to drive the water injection straight pipe 5 upward. When it is necessary to inject water into the water injection straight pipe 5, the U-shaped handle 8 is driven to rotate, so that the lifting part 81 reaches one radial side of the water injection straight pipe 5, thereby avoiding the lifting part 81 from interfering with the injection of water into the water injection straight pipe 5. After the water injection straight pipe 5 slides away from the top wall of the water tank 1, the operator can hold the lifting part 81 with one hand and drive the water injection straight pipe 5 to rotate with the other hand, thereby emptying the particles inside the water injection straight pipe 5.

[0034] In some embodiments, see Figure 2 and Figure 4 The water pressure test apparatus also includes two sets of connecting components 9, located on opposite sides of the radial direction of the water injection straight pipe 5. Each connecting component 9 includes a fixed shaft 91 and a rotating pipe 92. The fixed shaft 91 is horizontally positioned and fixedly connected at one end to the water injection straight pipe 5. The rotating pipe 92 is rotatably fitted over the fixed shaft 91. The two ends of the U-shaped handle 8 are fixedly connected to the rotating pipe 92 in each of the two connecting components 9. The rotatable connection between the U-shaped handle 8 and the water injection straight pipe 5 is indirectly achieved through the rotational engagement of the rotating pipe 92 and the fixed shaft 91.

[0035] In some embodiments, see Figure 1 and Figure 3 The water pressure testing apparatus also includes a vehicle body 10. The vehicle body 10 is used to support the water tank 1 and is fixedly connected to the water tank 1. Moving the water pressure testing apparatus is achieved through the vehicle body 10, which is relatively labor-saving.

[0036] In some embodiments, see Figure 2and Figure 5 The water pressure test device also includes a fixing block 110 and a limiting rod 120. The fixing block 110 is fixed to the water tank 1. The limiting rod 120 is located on one side of the radial direction of the water injection pipe 5. The limiting rod 120 is horizontally set with one end facing the water injection pipe 5. The limiting rod 120 slides through the fixing block 110, and the end face of the limiting rod 120 facing the water injection pipe 5 has an inwardly recessed portion 1201. When the rotation of the U-shaped handle 8 causes the lifting portion 81 and the limiting rod 120 to be on the same side of the water injection pipe 5, and the lifting portion 81 and the recessed portion 1201 are in the same horizontal space, the sliding of the limiting rod 120 allows the recessed portion 1201 to fit against the lifting portion 81, thereby restricting the U-shaped handle 8 from continuing to rotate. At the same time, it can also restrict the upward movement of the water injection pipe 5, thereby preventing the water injection pipe 5 from exiting the top wall of the water tank 1 due to the bumps of the vehicle body 10 during the movement of the vehicle body 10. After the limit rod 120 slides away from the lifting part 81, the U-shaped handle 8 can continue to rotate.

[0037] In some embodiments, the aforementioned feature limiting rod 120 may be adopted as follows: Figure 2 and Figure 5 The structure shown. See also Figure 2 and Figure 5 The limiting rod 120 has a quadrangular prism structure. This restricts the rotation of the limiting rod 120, thereby facilitating the fit between the recessed part 1201 and the lifting part 81.

[0038] In some embodiments, see Figure 2 The fixing block 110 has a threaded hole on its side, and the water pressure test device also includes a squeezing screw 130. The screw of the squeezing screw 130 is threaded into the threaded hole and is used to squeeze the limiting rod 120. By squeezing the limiting rod 120 with the screw of the squeezing screw 130, the limiting rod 120 is prevented from sliding, thereby keeping the recessed portion 1201 in contact with the lifting portion 81.

[0039] In some embodiments, the clamping screw 130 is a hand-tightening screw. In this way, the operator can tighten the clamping screw 130 without the aid of tools.

[0040] In some embodiments, see Figure 2 The water pressure test device also includes two anti-detachment rings 140. Both anti-detachment rings 140 are sleeved and fixed outside the limiting rod 120, and are located on the side of the fixing block 110 facing and away from the water injection straight pipe 5, respectively. The limiting block 110 prevents the limiting rod 120 from sliding off the fixing block 110 by limiting the two anti-detachment rings 140.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressurized water experimental apparatus characterized by, The water tank comprises: a water tank; a water pump fixed on the water tank; a water suction pipe penetrating the top wall of the water tank, so that one end of the water suction pipe is located in the water tank, and the other end of the water suction pipe is fixedly connected with the water inlet of the water pump; a water pressure pipe, one end of which is fixedly connected with the water outlet of the water pump; a water filling straight pipe vertically arranged and slidingly penetrating the top wall of the water tank; a filter screen located in the water tank and fixedly attached to the bottom surface of the water filling straight pipe; and a limiting ring fixedly sleeved on the outside of the water filling straight pipe and abutting against the top surface of the water tank.

2. The pressurized water testing apparatus of claim 1, wherein, Further comprising: a U-shaped handle connected with the water filling straight pipe, the middle part of the U-shaped handle being a lifting part.

3. The pressurized water testing apparatus of claim 2, wherein The U-shaped handle is rotationally connected with the middle part of the water filling straight pipe around a horizontal axis, so that the lifting part can be located directly above the water filling straight pipe or on one side of the water filling straight pipe in the radial direction.

4. The pressurized water testing apparatus of claim 3, wherein Further comprising two groups of connecting assemblies, one group of connecting assemblies being located on each side of the water filling straight pipe in the radial direction, the connecting assembly comprising: a fixed shaft horizontally arranged and having one end fixedly connected with the water filling straight pipe; a rotating pipe rotatably sleeved on the outside of the fixed shaft; wherein the two ends of the U-shaped handle are fixedly connected with the rotating pipes of the two groups of connecting assemblies, respectively.

5. The pressurized water testing apparatus of claim 4, wherein, Further comprising: a vehicle body for supporting the water tank and fixedly connected with the water tank.

6. The pressurized water testing apparatus of claim 5, wherein, Further comprising: a fixed block fixedly arranged on the water tank; a limiting rod located on one side of the water filling straight pipe in the radial direction, the limiting rod being horizontally arranged and having one end facing the water filling straight pipe, the limiting rod being slidingly arranged in the fixed block, and the end surface of the limiting rod facing the water filling straight pipe having a recessed part recessed inwardly; wherein when the rotation of the U-shaped handle causes the lifting part and the limiting rod to be located on the same side of the water filling straight pipe and the lifting part and the recessed part to be located in the same horizontal space, the sliding of the limiting rod can cause the recessed part to be attached to the lifting part.

7. The pressurized water testing apparatus of claim 6, wherein, The limiting rod has a quadrangular prism structure.

8. The pressurized water testing apparatus of claim 6, wherein, The side surface of the fixed block is provided with a threaded hole, and the water pressure testing device further comprises: a pressing screw screwedly connected in the threaded hole and used for pressing the limiting rod.

9. The pressurized water testing apparatus of claim 8, wherein, The pressing screw is a hand screw.

10. The pressurized water testing apparatus of claim 6, wherein, Further comprising: two anti-disengagement rings, each being fixedly sleeved on the outside of the limiting rod, and the two anti-disengagement rings being located on the side of the fixed block facing and away from the water filling straight pipe, respectively.

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