Connecting device for jet erosion experimental equipment

Abstract

The utility model provides a connecting device for jet erosion experimental equipment, relates to the technical field of sample erosion, and solves the technical problem in the prior art that the arrangement of the experimental equipment is influenced when a field sample jet erosion experiment is carried out in a complex terrain environment. According to the connecting device for the jet erosion experiment equipment, a jet mechanism is used for containing a sample needing to be subjected to an erosion experiment and spraying water flow to the contained sample; the air cylinder mechanism is used for containing a water source and injecting the water source into the jet flow mechanism in a single jet flow mode; the connecting mechanism comprises a connecting pipe made of a rubber hose, one end of the connecting pipe is connected to the air cylinder mechanism, and the other end of the connecting pipe is connected to the jet flow mechanism; the jet flow mechanism and the air cylinder mechanism are connected through the connecting pipe made of a rubber hose material capable of being freely bent, and the connecting pipe can extend to a complex terrain environment to bypass rocks and trees, so that the device can be flexibly arranged in a field experiment environment.

Description

Technical Field

[0001] The utility model relates to the technical field of sample erosion, in particular to a connecting device for jet erosion experimental equipment. Background Art

[0002] The jet erosion test is an analytical method for quantifying the erosion resistance and erosion parameters. It aims to simulate the erosion effect of fluid on the surface of the target material through a stable jet formed by a controllable fluid (such as water or air). The particles or fluid molecules in the jet hit the surface of the material, causing erosion. By adjusting the pressure, speed, angle of the jet and the type and properties of the test material, the erosion effect under different conditions can be observed and analyzed, and then the critical shear force required to start erosion and the soil separation rate coefficient per unit of applied shear stress can be estimated using the principles of jet dynamics.

[0003] Soil jet erosion experiments usually use an experimental device consisting of the following components:

[0004] -Adjustable head box: used to control the pressure and flow rate of the jet.

[0005] -Spot meter: accurately measures readings during the scouring process and monitors the degree of erosion.

[0006] -Jet pipe and nozzle: produces a directed high-speed jet.

[0007] -Jet immersion box: holds soil samples to facilitate observation of erosion processes.

[0008] - Deflector: used to prevent water flow from directly impacting the sample during the experiment and to shut off the water flow when taking readings to ensure accurate measurements.

[0009] The jet tube is fixed on the top cover. At the beginning of the experiment, the air in the tube needs to be discharged through the air vent valve to ensure the stability of the jet.

[0010] At present, when conducting field soil jet erosion experiments, the complexity of the terrain, especially in places with messy rocks and dense trees, will affect the layout of the experimental equipment, making the experiment difficult to conduct.

[0011] Therefore, it is urgent to develop a connection device for jet erosion experimental equipment to solve the above-mentioned technical problems. Utility Model Content

[0012] The purpose of the utility model is to provide a connection device for jet erosion experimental equipment to solve the technical problem of the prior art that affects the layout of the experimental device when conducting field soil jet erosion experiments in complex terrain environments. The preferred technical solutions among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0013] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0014] The utility model provides a connection device for jet erosion experimental equipment, comprising:

[0015] A jet mechanism, used for containing a sample to be subjected to an erosion test and spraying water toward the contained sample;

[0016] The cylinder mechanism is used to contain the water source and inject the water source into the jet mechanism in a single jet mode;

[0017] The connecting mechanism comprises a connecting pipe made of a rubber hose material, one end of the connecting pipe is connected to the cylinder mechanism, and the other end of the connecting pipe is connected to the jet mechanism.

[0018] Furthermore, the connecting mechanism also includes a sealing head fixedly connected to one end of the cylinder mechanism for spraying water, and the sealing head is provided with a receiving hole and a connecting hole that are interconnected. The connecting hole is used to connect to the jet mechanism, and the receiving hole is used to embed a connecting pipe.

[0019] Furthermore, the connecting pipe is completely embedded in the accommodating hole and abuts against the connecting point between the communicating hole and the accommodating hole, and the inner diameter of the connecting pipe is larger than the diameter of the connecting hole connected to the accommodating hole.

[0020] Furthermore, the communicating hole is arranged in a conical shape, and the inner diameter of the communicating hole gradually decreases from the end connected to the jet mechanism to the end of the communicating hole connected to the accommodating hole.

[0021] Furthermore, the jet mechanism includes a base assembly for accommodating a sample to be subjected to an erosion experiment and a jet assembly for spraying water to the sample, and the jet assembly is interconnected with a connecting pipe.

[0022] Furthermore, the jet assembly includes a rotating frame, a rotating frame central axis and a nozzle for spraying water into the base assembly, the rotating frame central axis is fixedly connected to the base assembly, the rotating frame is rotatably arranged on the rotating frame central axis, the nozzle is fixedly connected to the rotating frame central axis, and the nozzle is communicated with a connecting pipe.

[0023] Furthermore, the jet assembly also includes a base fixedly connected to the base assembly, the central axis of the rotating frame is fixedly connected to the base, an arc-shaped groove is provided on the base along the rotation path of the nozzle, and a water inlet connected to the jet mechanism is also provided on the base.

[0024] Furthermore, the jet assembly also includes a swing frame spring and a swing frame nut, wherein the swing frame spring is sleeved on the swing frame middle shaft, the swing frame nut is screwed on the swing frame middle shaft and abuts against the swing frame spring, and the swing frame spring abuts against the swing frame.

[0025] Furthermore, the jet assembly also includes a depth gauge fixedly connected to the rotating frame, the rotation path of the depth gauge on the base is the same as the rotation path of the nozzle, and the depth gauge can be inserted into the water inlet, and the water inlet is set in the middle of the arc-shaped groove.

[0026] Furthermore, the jet assembly also includes a right-angle rubber hose fixedly connected to the nozzle, and one end of the right-angle rubber hose away from the nozzle is sleeved and fixed on the connecting pipe.

[0027] The preferred technical solution of the utility model can also produce at least the following technical effects:

[0028] During use, the jet mechanism and the cylinder mechanism are connected by using a connecting pipe made of freely bendable rubber hose. The experimental device can also be flexibly arranged in complex outdoor environments by using connecting pipes of different lengths. The connecting pipe can be extended to complex terrain environments to bypass rocks and trees so that the device can be flexibly arranged in the outdoor experimental environment, thereby solving the technical problems in the prior art that affect the arrangement of the experimental device when conducting jet erosion experiments on field samples in complex terrain environments. 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 overall structure provided by an embodiment of the utility model;

[0031] Figure 2 It is a schematic diagram of the structure of the cylinder mechanism provided by the embodiment of the utility model;

[0032] Figure 3 It is an internal cross-sectional view of the connection mechanism provided by the embodiment of the utility model;

[0033] Figure 4 It is a cross-sectional view of the interior of the jet mechanism provided by the embodiment of the utility model;

[0034] Figure 5 This is a schematic diagram of the basic ring cutter structure provided by an embodiment of the utility model;

[0035] Figure 6 It is a schematic diagram of the sample ring knife structure provided by an embodiment of the utility model;

[0036] Figure 7It is a schematic diagram of the structure of the immersion water tank provided in the embodiment of the utility model.

[0037] Description of reference numerals: 100, cylinder mechanism; 110, cylinder body; 120, piston; 130, reset air inlet; 140, propulsion air inlet; 150, gas reversing valve; 160, water injection port; 170, firing chamber; 180, piston accommodating chamber; 200, jet mechanism; 210, jet assembly; 211, nozzle; 212, rotating frame; 213, caliper hand wheel; 214, rotating frame hand wheel; 215, depth gauge; 216, base; 2161, arc-shaped embedded groove; 216 2. Water inlet; 217. Central axis of the rotating frame; 218. Nut of the rotating frame; 219. Spring of the rotating frame; 220. Immersed water tank; 221. Water film cavity; 230. Drain pipe; 240. Basic ring knife; 241. Cutting edge; 242. First sample holding cavity; 250. Sample ring knife; 251. Second sample holding cavity; 260. Base; 300. Connecting mechanism; 310. Sealing head; 311. Holding hole; 312. Connecting hole; 320. Connecting pipe; 330. Right-angle rubber hose. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0039] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] The following is combined with Figure 1-7 The present application is further described in detail. An embodiment of the present application discloses a connection device for a jet erosion experimental device.

[0042] Reference Figure 1 As shown, a connecting device for jet erosion experimental equipment includes a jet mechanism 200, a cylinder mechanism 100 and a connecting mechanism 300.

[0043] The cylinder mechanism 100 includes a cylinder assembly for containing water flow and a pneumatic assembly for supplying gas to the cylinder assembly.

[0044] The cylinder assembly is used to accommodate external water flow and store the external water flow inside the cylinder assembly, and then use the external gas provided by the pneumatic assembly to push the water flow through the connecting mechanism 300 into the jet mechanism 200 to complete a single jet.

[0045] The pneumatic assembly is used to connect the external air source with the cylinder assembly, so as to provide a stable air source to the cylinder assembly to ensure the completion of a single jet operation.

[0046] The jet mechanism 200 includes a base assembly for obtaining samples and accommodating the erosion jet experiment and a jet assembly 210 for spraying water to the soil. The jet assembly 210 is interconnected with the cylinder assembly through a connecting mechanism 300 to receive the water emitted by the cylinder assembly and spray the water into the base assembly to complete the soil jet erosion experiment.

[0047] Reference Figure 1 and Figure 2 As shown, the cylinder assembly includes a cylinder body 110 and a piston 120, and a piston accommodating chamber 180 and a firing chamber 170 are provided inside the cylinder body 110. The piston accommodating chamber 180 and the firing chamber 170 are connected in sequence, and the piston 120 is in the piston accommodating chamber 180 in the unactivated state, and the piston 120 slides from the piston accommodating chamber 180 to the firing chamber 170 in the activated state. The end of the firing chamber 170 away from the piston accommodating chamber 180 is connected to the connecting mechanism 300, and a water injection port 160 connected to the firing chamber 170 is provided at the end of the cylinder body 110 connected to the connecting mechanism 300, and a sealing screw is screwed on the water injection port 160.

[0048] Water is injected into the firing chamber 170 through the water injection port 160 , and after the water required for one experiment is fully injected, the water injection port 160 is sealed with a sealing bolt.

[0049] The sealing screws use national standard 12.9 grade M6 screws, which are not shown in the drawings of this specification.

[0050] At this time, the pneumatic assembly is started, and the pneumatic assembly pushes the piston 120 to extend from the piston accommodating chamber 180 into the firing chamber 170, and pushes the water in the firing chamber 170 to be fired toward the jet assembly 210. The characteristics of the cylinder are used to achieve a single shot, and the amount of water injected each time is fixed to the capacity of the firing chamber 170. The amount of water required is small, and water can be added to the firing chamber 170 through the water injection port 160 for each experiment.

[0051] In addition, the cylinder assembly is small in size and does not require an additional large water tank, which solves the problem that the device for field soil submerged jet erosion experiments is too large and inconvenient to operate.

[0052] Reference Figure 1 and Figure 2 As shown, the pneumatic assembly includes a gas reversing valve 150 for connecting to an external gas source, and the gas inlet of the gas reversing valve 150 can be connected to a small compressed gas cylinder that is easy to carry. The small compressed gas cylinder is small in size and easy to carry, and does not require electric drive, which solves the problem of power supply required for field experiments of the experimental device. At the same time, the supplementary gas can be supplemented by an air pump. During the experiment, the small compressed gas cylinder and the air pump can continuously provide compressed gas to the cylinder body 110.

[0053] The end of the cylinder body 110 away from the firing chamber 170 is provided with a propulsion air inlet 140 for driving the piston 120 to be pushed out, and the middle of the cylinder body 110 is provided with a reset air inlet 130 for driving the piston 120 to be reset. The propulsion air inlet 140 and the reset air inlet 130 are respectively connected to the gas reversing valve 150. The gas reversing valve 150 is used to adjust the charging of the propulsion air inlet 140 or the reset air inlet 130. When the regulating piston 120 is pushed out, the gas reversing valve 150 is adjusted to charge the propulsion air inlet 140 alone, and the piston 120 is extended out of the piston accommodating chamber 180. When the regulating piston 120 is reset, the gas reversing valve 150 is adjusted to charge the reset air inlet 130 alone, while keeping the propulsion air inlet 140 unobstructed, so as to achieve the adjustment of the extension and reset of the piston 120.

[0054] Reference Figure 2 and Figure 3As shown, the connection mechanism 300 includes a connection pipe 320 and a sealing head 310, and the sealing head 310 is fixedly connected to the end of the cylinder body 110. The sealing head 310 is provided with a receiving hole 311 and a communicating hole 312 inside, one end of the communicating hole 312 is connected to the firing chamber 170, and the other end of the communicating hole 312 is connected to the receiving hole 311. The communicating hole 312 is connected to the receiving hole 311 in a horizontal straight line.

[0055] One end of the connecting tube 320 is connected to the jet assembly 210, and the other end of the connecting tube 320 is embedded in the receiving hole 311, and the inner diameter of the connecting tube 320 is larger than the diameter of the connecting hole 312 connected to one end of the connecting tube 320. In this way, when the water flow in the firing chamber 170 rushes into the communicating hole 312 at a faster speed under the push of the piston 120, it can easily enter the connecting tube 320. The impact of the water flow on the end of the connecting tube 320 connected to the sealing head 310 is reduced, and the connecting tube 320 is prevented from rushing out of the receiving hole 311 under the action of water pressure.

[0056] The inner diameter of the communicating hole 312 is tapered, and the inner diameter of the communicating hole 312 gradually decreases from one end close to the cylinder body 110 to one end connected to the connecting pipe 320 .

[0057] The connecting pipe 320 uses a freely bendable rubber hose connection device, and the experimental device can be flexibly arranged in a complex outdoor environment by using rubber hoses of different lengths. The rubber hose can be extended to a complex terrain environment to bypass rocks and trees so that the device can be flexibly arranged in an outdoor experimental environment.

[0058] The connecting mechanism 300 also includes a right-angle rubber hose 330 connected to the jet assembly 210. The right-angle rubber hose 330 is fixedly connected to one end of the connecting pipe 320 away from the sealing head 310, so that the right-angle rubber hose 330 is arranged between the jet assembly 210 and the connecting pipe 320, thereby facilitating the erosion test of the erosion sample and preventing the connecting pipe 320 made of the rubber hose from affecting the normal use of the jet assembly 210 during the experiment.

[0059] Reference Figure 4 and Figure 5 As shown, the base assembly includes a basic ring knife 240 and a base member. The basic ring knife 240 is arranged in a cylindrical shape, and a first sample accommodating cavity 242 is provided along the axis of the basic ring knife 240, one end of the basic ring knife 240 is fixedly connected to a basic edge, the basic edge is arranged in a circular ring shape, and the basic edge is extended outward and inward in the radial direction of the basic ring knife 240, and the end of the basic ring knife 240 connected to the basic edge protrudes from the basic edge.

[0060] The other end of the basic ring cutter 240 is provided with a cutting edge 241 for inserting into the soil to be tested, and the cutting edge 241 is provided along the circumferential direction of the basic ring cutter 240 .

[0061] During field sampling, the foundation edge is connected to the jet assembly 210, and then the annular cutting edge 241 of the foundation ring cutter 240 is directly inserted into the soil to be sampled, so that experiments can be conducted directly on the field in-situ soil without destroying the soil structure.

[0062] The base member is detachably connected to one end of the basic ring cutter 240 with the cutting edge 241, thereby sealing the first sample accommodating chamber 242, making it easier to conduct soil erosion experiments in the laboratory. The diversity of experimental equipment is improved, the number of experimental equipment is reduced, and the volume of experimental equipment is effectively reduced.

[0063] Reference Figure 4 and Figure 6 As shown, the base member includes a base 260 and a sample ring 250. The base 260 is set in a disc shape, and a circular groove is opened on one side of the base 260, and the sample ring 250 is embedded in the groove. The sample ring 250 is set in a columnar body, and the sample ring 250 is penetrated by a second sample accommodating cavity 251 along the direction of its axis.

[0064] The card slot is used to achieve positioning during the connection process between the sample ring knife 250 and the base 260, and the side walls of the card slot are respectively fitted with the inner and outer walls of the sample ring knife 250 to achieve sealing of one end of the second sample containing cavity 251, effectively ensuring the sealing of one end of the second sample containing cavity 251.

[0065] Furthermore, the base edge of the base cutter ring 240 and the base 260 are both provided with bolt through holes for inserting positioning bolts.

[0066] The basic knife ring 240 is sleeved on one end of the sample knife ring 250 away from the base 260, and the end of the sample knife ring 250 away from the base 260 abuts against the end face of the base edge, thereby realizing the splicing of the basic knife ring 240 and the sample knife ring 250, and the outer wall of the sample knife ring 250 abuts against the inner wall of the basic knife ring 240, so that the first sample accommodating cavity 242 and the second sample accommodating cavity 251 form a new sample accommodating space for accommodating the soil to be tested.

[0067] When the base ring 240 is sleeved on the sample ring 250, and the base edge extending from the first sample accommodating cavity 242 abuts against the end of the sample ring 250, the positioning bolts are passed through the bolt holes of the base 260 and the base edge of the base ring 240 in sequence, thereby fixing the base ring 240, the sample ring 250 and the base 260 in the same vertical direction.

[0068] After the first sample accommodating cavity 242 of the basic ring knife 240, the second sample accommodating cavity 251 of the sample ring knife 250 and the base 260 are assembled, the end of the basic ring knife 240 away from the sample ring knife 250 can be used to form a new sample accommodating space with the first sample accommodating cavity 242 and the second sample accommodating cavity 251 to place the sample to be tested in the new sample accommodating space to complete the jet erosion experiment.

[0069] The detachable connection between the basic knife ring 240, the sample knife ring 250 and the base 260 facilitates the transportation of the experimental device during the field sampling experiment.

[0070] Reference Figure 4 and Figure 7 As shown, the base assembly also includes an immersion water tank 220 and a drain pipe 230. The immersion water tank 220 is cylindrically arranged and is sleeved on the basic ring knife 240. The end of the immersion water tank 220 abuts against the side wall of the basic edge in the first accommodating cavity, and the outer wall of the immersion water tank 220 abuts against the inner wall of the basic ring knife 240, thereby realizing the limiting and positioning function of the immersion water tank 220.

[0071] A water film cavity 221 is formed through the immersion water tank 220. During the experiment, the immersion water tank 220 is filled with aqueous solution to cover the soil to be tested, thereby providing a submerged environment for the in-situ soil submerged jet erosion experiment.

[0072] The drain pipe 230 is fixedly connected to the side wall of the immersion water tank 220, and the drain pipe 230 and the immersion water tank 220 are interconnected, and the drain pipe 230 is arranged away from the end of the immersion water tank 220 connected to the base ring knife 240. The aqueous solution injected into the water film cavity 221 is lower than the lowest connection point between the drain pipe 230 and the immersion water tank 220.

[0073] During the experiment, the drain pipe 230 is used to discharge the experimental product to prevent excessive water flow injected into the first sample accommodating chamber 242 and the second sample accommodating chamber 251, which may cause excessive pressure inside the experimental device and damage the experimental device.

[0074] A first connecting ear for connecting the basic ring knife 240 is fixedly connected to the immersion water tank 220. Two first connecting ears are provided. The two first connecting ears are symmetrically arranged on the immersion water tank 220, and each first connecting ear is provided with a bolt through hole for passing a positioning bolt.

[0075] Reference Figure 1 and Figure 4As shown, the jet assembly 210 includes a cover plate and a base 216. The peripheral side wall of the cover plate is fixedly connected with two second connecting ears for matching the first connecting ears. The cover plate is used to cover the immersion water tank 220 to seal the end of the immersion water tank 220 away from the basic ring knife 240. The two second connecting ears just correspond to the two first connecting ears, and the two second connecting ears are also respectively provided with bolt through holes.

[0076] In this connection process, the positioning bolts are passed through the bolt holes of the first connection ear and the second connection ear and inserted into the bolt through holes of the foundation edge, and nuts are screwed onto the positioning bolts and abut against the side wall of the foundation edge, thereby achieving the assembly and fixation of the cover plate, the immersion water tank 220 and the foundation ring knife 240.

[0077] The base 216 is provided with a plurality of screw holes, and the plurality of screw holes are arranged circumferentially with the center of the base 216 as the center.

[0078] The base 216 is in contact with the cover plate, and a waterproof gasket is sandwiched between the base 216 and the cover plate. The cover plate passes through a screw from one end facing the immersion tank 220 and passes through the screw holes in sequence, thereby achieving a fixed connection between the base 216 and the cover plate.

[0079] The jet assembly 210 further includes a rotating frame 212, a rotating frame middle shaft 217 and a rotating frame spring 219. The rotating frame middle shaft 217 is fixedly connected to the center position of the base 216. The rotating frame 212 is sleeved on the rotating frame middle shaft 217. The spring is sleeved on the rotating frame middle shaft 217, and the rotating frame 212 is clamped between the rotating frame spring 219 and the base 216. A rotating frame nut 218 is screwed on the rotating frame middle shaft 217, and the rotating frame nut 218 abuts against the rotating frame spring 219. By adjusting the distance between the rotating nut on the rotating frame middle shaft 217 and the base 216, the compression of the spring is changed, so that the compression force of the spring is transmitted to the rotating frame 212 and pressed against the base 216.

[0080] The jet assembly 210 also includes a nozzle 211 connected to the right-angle rubber hose 330, and a clamping groove is provided on the rotating frame 212, that is, the rotating frame 212 is provided with two clamping plates integrally connected to the rotating frame 212, and the two clamping plates are symmetrically arranged and extend away from the axis, the clamping groove is arranged between the two clamping plates, the nozzle 211 is inserted and passes through the clamping groove, and a rotating frame handwheel 214 is provided on the two clamping plates, one end of the rotating frame handwheel 214 passes through one of the clamping plates and is screwed on the other clamping plate, and the distance between the two clamping plates is changed by rotating the rotating frame handwheel 214 to complete the clamping and fixing of the nozzle 211.

[0081] The vibration generated by the nozzle 211 during the process of spraying water is transmitted to the base 216 and eliminated by the rotating frame spring 219, thereby ensuring the stability of the nozzle 211 during the process of spraying water and preventing the rotating frame 212 from vibrating and rotating during the experiment.

[0082] The nozzle 211 will rotate along with the rotating frame 212 when the rotating frame 212 rotates around the rotating frame central axis 217 as the axis.

[0083] The base 216 is provided with an arc-shaped embedded groove 2161 penetrating along the rotation path of the nozzle 211, and a water inlet 2162 connected to the arc-shaped embedded groove 2161 is penetrating along the axis direction of the central axis 217 of the rotating frame on the base 216. The water inlet 2162 penetrates the cover plate and is connected to the water film cavity 221. The water inlet 2162 is arranged in the middle of the arc-shaped embedded groove 2161.

[0084] When conducting an experiment, the rotating frame 212 drives the nozzle 211 to align with the water inlet 2162, and the nozzle 211 flushes water from the water inlet 2162 into the water film cavity 221 and impacts the test sample to complete the jet erosion experiment.

[0085] Reference Figure 1 and Figure 4 As shown, the jet assembly 210 also includes a depth gauge 215 and a caliper hand wheel 213. A plug hole is provided on the base 216. The depth gauge 215 is inserted into the plug hole and can slide freely along the plug hole. The caliper hand wheel 213 is screwed to the side wall of the base 216 and the end thereof passes through the plug hole for abutting against the depth gauge 215.

[0086] When the depth gauge 215 is not in use, the caliper hand wheel 213 is rotated to press against the depth gauge 215 .

[0087] When the depth gauge 215 is needed, the rotating frame 212 is rotated to drive the nozzle 211 to move away from the water inlet 2162. At the same time, the rotating frame 212 drives the depth gauge 215 to rotate and align the depth gauge 215 with the water inlet 2162. The caliper hand wheel 213 is rotated to release the depth gauge 215 to measure the experimental data.

[0088] And record the experimental data of the soil submerged jet erosion experiment to complete the soil submerged jet erosion experiment.

[0089] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which 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 of the claims.

Claims

1. A connection device for jet erosion experimental equipment, characterized in that: include: A jet mechanism (200) is used to accommodate a sample to be subjected to an erosion test and to spray water toward the accommodated sample; The cylinder mechanism (100) is used to contain a water source and inject the water source into the jet mechanism (200) in a single jet manner; The connecting mechanism (300) comprises a connecting pipe (320) made of a rubber hose material, one end of the connecting pipe (320) is connected to the cylinder mechanism (100), and the other end of the connecting pipe (320) is connected to the jet mechanism (200).

2. A connection device for jet erosion experimental equipment according to claim 1, characterized in that: The connection mechanism (300) further comprises a sealing head (310) fixedly connected to one end of the cylinder mechanism (100) for spraying water, wherein the sealing head (310) is provided with a receiving hole (311) and a connecting hole (312) which are interconnected, wherein the connecting hole (312) is used for connecting with the jet mechanism (200), and the receiving hole (311) is used for embedding a connecting pipe (320).

3. A connection device for jet erosion experimental equipment according to claim 2, characterized in that: The connecting tube (320) is completely embedded in the accommodating hole (311) and abuts against the connecting point between the communicating hole (312) and the accommodating hole (311), and the inner diameter of the connecting tube (320) is larger than the diameter of the connecting hole (312) at the connection point with the accommodating hole (311).

4. A connection device for jet erosion experimental equipment according to claim 2, characterized in that: The communicating hole (312) is arranged in a conical shape, and the inner diameter of the communicating hole (312) gradually decreases from one end connected to the jet mechanism (200) to one end of the communicating hole (312) connected to the accommodating hole (311).

5. A connection device for jet erosion experimental equipment according to claim 1, characterized in that: The jet mechanism (200) comprises a base (260) component for accommodating a sample to be subjected to an erosion experiment and a jet component (210) for spraying water onto the sample. The jet component (210) is connected to a connecting pipe (320).

6. A connection device for jet erosion experimental equipment according to claim 5, characterized in that: The jet assembly (210) comprises a rotating frame (212), a rotating frame middle axis (217), and a spray head (211) for spraying water into a base (260) assembly, wherein the rotating frame middle axis (217) is fixedly connected to the base (260) assembly, the rotating frame (212) is rotatably arranged on the rotating frame middle axis (217), the spray head (211) is fixedly connected to the rotating frame middle axis (217), and the spray head (211) is communicated with a connecting pipe (320).

7. A connection device for jet erosion experimental equipment according to claim 6, characterized in that: The jet assembly (210) further comprises a base (216) fixedly connected to the base (260) assembly, the central axis (217) of the rotating frame is fixedly connected to the base (216), an arc-shaped embedded groove (2161) is provided on the base (216) along the rotation path of the nozzle (211), and a water inlet (2162) connected to the jet mechanism (200) is also provided on the base (216).

8. A connection device for jet erosion experimental equipment according to claim 7, characterized in that: The jet assembly (210) further comprises a swing frame spring (219) and a swing frame nut (218), wherein the swing frame spring (219) is sleeved on the swing frame middle shaft (217), the swing frame nut (218) is screwed on the swing frame middle shaft (217) and abuts against the swing frame spring (219), and the swing frame spring (219) abuts against the swing frame (212).

9. A connection device for jet erosion experimental equipment according to claim 6, characterized in that: The jet assembly (210) further comprises a depth gauge (215) fixedly connected to the rotating frame (212); the rotation path of the depth gauge (215) on the base (216) is the same as the rotation path of the spray head (211); the depth gauge (215) can be inserted into the water inlet (2162); and the water inlet (2162) is arranged in the middle of the arc-shaped embedding groove (2161).

10. A connection device for jet erosion experimental equipment according to claim 7, characterized in that: The jet assembly (210) further comprises a right-angle rubber hose (330) fixedly connected to the nozzle (211); one end of the right-angle rubber hose (330) away from the nozzle (211) is sleeved and fixed on the connecting pipe (320).

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