Experimental setup for studying ultrasound imaging

Abstract

The present invention relates to an experimental device for studying ultrasonic imaging, comprising an ultrasonic imaging transducer fixing frame, an ultrasonic imaging transducer is fixed on the ultrasonic imaging transducer fixing frame, an acoustic window is provided on the outer sleeve of the ultrasonic imaging transducer, the lower end of the ultrasonic imaging transducer fixing frame is located in the acoustic window, an upper connecting rod is fixedly connected to the upper end of the ultrasonic imaging transducer fixing frame, the upper connecting rod passes through the upper end of the acoustic window for connection with a slide rail mechanism, and the upper connecting rod and the acoustic window are fixedly sealed and connected; the ultrasonic imaging transducer is connected to one end of an electrical connection unit, the other end of the electrical connection unit passes through the acoustic window and is connected to a power source, an oil injection hole is provided on the acoustic window, and an oil nozzle is threadedly connected at the oil injection hole. The present invention can study the law of interaction between ultrasonic waves and well wall cracks and rock stratification, and there is no need to install the ultrasonic imaging transducer to a logging instrument, thereby improving the feasibility of the experiment and having the advantages of simple and convenient operation.

Description

Technical Field

[0001] The invention belongs to the technical field of instrument testing, and in particular relates to an experimental device for studying ultrasonic imaging. Background Art

[0002] The high-temperature circumferential acoustic imaging logging instrument is used to ultrasonically scan the borehole wall of an open hole or cased well to produce detailed images. The imaging data of the ultrasonic imaging transducer can evaluate the effectiveness of the buried hill fractures and holes. Among them, the ultrasonic imaging transducer of the instrument is installed on the rotating part of the instrument, so that the well wall can be scanned 360 degrees around the well. During specific logging, the ultrasonic imaging transducer of the instrument emits high-frequency ultrasonic pulses and measures the arrival time and amplitude of the echo. The amplitude of the echo is affected by the well wall structure, and the arrival time of the echo reflects the distance from the transducer to the well wall.

[0003] In order to further study the interaction between ultrasonic waves and well wall cracks and rock stratification, so as to better guide well logging, a lot of experimental research work is needed. Therefore, it is necessary to establish an experimental device that simulates the downhole experimental environment and is close to the actual downhole working state of the instrument. Summary of the invention

[0004] In order to solve all or part of the above problems, the purpose of the present invention is to provide an experimental device for studying ultrasonic imaging. The experimental device for studying ultrasonic imaging of the present invention can study the laws of interaction between ultrasonic waves and well wall cracks and rock stratification, and there is no need to install the ultrasonic imaging transducer on the logging instrument, thereby improving the feasibility of the experiment.

[0005] According to one aspect of the present invention, there is provided an experimental device for studying ultrasonic imaging, comprising an ultrasonic imaging transducer fixing frame, on which an ultrasonic imaging transducer is fixed, an outer sleeve of the ultrasonic imaging transducer is provided with an acoustic window, the lower end of the ultrasonic imaging transducer fixing frame is located in the acoustic window, the upper end of the ultrasonic imaging transducer fixing frame is fixedly connected with an upper connecting rod, the upper connecting rod passes through the upper end of the acoustic window for connection with a slide rail mechanism, and the upper connecting rod and the acoustic window are fixedly and sealedly connected; the ultrasonic imaging transducer is connected to one end of an electrical connection unit, the other end of the electrical connection unit passes through the acoustic window and is connected to a power source, an oil filling hole is provided on the acoustic window, and an oil nozzle is threadedly connected to the oil filling hole.

[0006] Further, the upper connecting rod is sealingly connected to an upper sealing cover, the upper sealing cover is limited on the upper connecting rod, and the upper sealing cover is sealingly connected to the acoustic window; the lower end of the ultrasonic imaging transducer fixing frame is fixedly connected to a lower connecting rod, the lower connecting rod is sealingly connected to a lower sealing cover, the lower sealing cover is limited on the lower connecting rod, and the lower sealing cover is sealingly connected to the acoustic window;

[0007] Limiting convex rings are respectively arranged on the outer circumferences of the upper sealing cover and the lower sealing cover, and the two limiting convex rings are arranged far away from each other, and the acoustic window is limited between the two limiting convex rings; the upper sealing cover is configured to be able to rotate following the upper connecting rod, and the other end of the electrical connection unit passes through the upper sealing cover to be connected to the power supply.

[0008] Furthermore, a lower stopper is threadedly connected to a side of the lower connecting rod away from the ultrasonic imaging transducer, a lower limiting ring is provided at the upper end of the lower connecting rod, and the lower sealing cover is limited between the lower stopper and the lower limiting ring.

[0009] Furthermore, an upper stopper is threadedly connected to a side of the upper connecting rod away from the ultrasonic imaging transducer, an upper limit ring is provided at the lower end of the upper connecting rod, and the upper sealing cover is limited between the upper stopper and the upper limit ring.

[0010] Furthermore, a positioning screw is fixedly connected to the upper connecting rod, and a positioning groove is provided on the inner wall of the upper sealing cover. The length direction of the positioning groove is parallel to the axis of the upper connecting rod. The positioning screw is located in the positioning groove, and the upper connecting rod rotates to drive the upper sealing cover to rotate through the positioning screw.

[0011] Furthermore, the upper and lower ends of the acoustic window are respectively provided with reinforcement sleeves, and one end of each reinforcement sleeve away from the other reinforcement sleeve is respectively connected to a hook head, and the hook head is located between the acoustic window and the corresponding limiting convex ring.

[0012] Furthermore, the oil filling hole is arranged on the upper sealing cover, and the oil filling hole is threadedly connected to the oil nozzle; and a positioning mark is arranged on the outer side of the upper sealing cover.

[0013] Furthermore, the electrical connection unit includes a connecting column and a first pin, the connecting column is fixed on the ultrasonic imaging transducer fixing frame, the first pin is fixedly sealed on the upper sealing cover, the connecting column is electrically connected to the electrical connection line of the ultrasonic imaging transducer, the connecting column is connected to one end of the first pin, and the other end of the first pin is used to connect to a power supply.

[0014] Furthermore, the first plug pin is electrically connected to a second plug pin through plugging, the second plug pin is used to connect to a power source, and the first plug pin is sealed and connected to the second plug pin;

[0015] The first plug pin is a female plug pin, and the second plug pin is a male plug pin plugged with the female plug pin; a female plug pin compartment is provided on the upper sealing cover, the first plug pin is threadedly connected to the female plug pin compartment, and the first plug pin is sealed and connected to the upper sealing cover through an end face seal;

[0016] The ultrasonic imaging transducer fixing frame is provided with a wiring groove and a winding post, and there are two connecting posts. The electrical connecting wire of the ultrasonic imaging transducer and the first pin are electrically connected to any one of the connecting posts at the same time.

[0017] Furthermore, the upper end of the upper connecting rod is fixedly connected to the lower connecting block, the lower connecting block is fixedly connected to the upper connecting block by screws, the upper connecting block is connected to a threaded connecting rod, the head of the threaded connecting rod is located in the countersunk groove on the upper connecting block, and the rod portion of the threaded connecting rod is used to connect to the slide rail mechanism.

[0018] It can be seen from the above technical solution that the experimental device for studying ultrasonic imaging provided by the present invention has the following beneficial effects:

[0019] The present invention can study the law of interaction between ultrasonic waves and well wall cracks and rock stratification, and does not need to install the ultrasonic imaging transducer on the logging instrument, thereby improving the feasibility of the experiment and having the advantages of simple and convenient operation.

[0020] The configuration of the present invention can facilitate the disassembly and installation of the ultrasonic imaging transducer, and has the advantage of convenient installation and disassembly;

[0021] The arrangement of the positioning slide groove and the positioning engraved line of the present invention ensures accurate identification of the direction of the ultrasonic imaging transducer after assembly, thereby improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of an experimental device for studying ultrasonic imaging according to an embodiment of the present invention connected to a slide rail mechanism;

[0023] Figure 2 A schematic diagram of an experimental device for studying ultrasonic imaging according to an embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of an experimental device for studying ultrasonic imaging according to an embodiment of the present invention;

[0025] Figure 4 It is a structural schematic diagram of an ultrasonic imaging transducer fixing frame according to an embodiment of the present invention;

[0026] Figure 5 is a cross-sectional view of an ultrasonic imaging transducer fixing frame according to an embodiment of the present invention;

[0027] Figure 6 It is a structural schematic diagram of an upper sealing cover according to an embodiment of the present invention;

[0028] Figure 7 is a cross-sectional view of an upper sealing cover according to an embodiment of the present invention;

[0029] Figure 8 is a cross-sectional view of a lower sealing cover according to an embodiment of the present invention;

[0030] Fig. 9 is a cross-sectional view of a female pin according to an embodiment of the present invention;

[0031] Fig.10 is a cross-sectional view of a lower connecting plate according to an embodiment of the present invention;

[0032] Fig.11 is a cross-sectional view of an upper connecting plate according to an embodiment of the present invention;

[0033] The accompanying drawings are marked as follows: experimental device 1, slide rail mechanism 2, ultrasonic imaging transducer 101, ultrasonic imaging transducer fixing frame 102, lower connecting rod 1021, upper connecting rod 1022, lower limit ring 1023, upper limit ring 1024, wiring groove 1025, winding column 1026, upper sealing cover 103, upper O-ring groove 1031, female pin compartment 1032, oil filling hole 1033, positioning scale line 1034, positioning slide groove 1035, lower sealing cover 104, lower O-ring groove 1041, limiting convex ring 1042, lower stopper 105, acoustic window 106, reinforcement sleeve 107, oil nozzle 108, positioning screw 109, connecting column 110, female pin 111, end face sealing groove 1111, inner wall sealing groove 1112, male pin 112, upper connecting block 113, center countersunk threaded hole 1131, outer ring countersunk threaded hole 1132, lower connecting block 114, outer ring threaded hole 1141, center threaded hole 1142, upper stopper 115. DETAILED DESCRIPTION

[0034] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of an experimental device for studying ultrasonic imaging of the present invention in conjunction with the accompanying drawings.

[0035] The ultrasonic imaging transducer used in well logging is installed on the rotating part of the logging instrument, so that it can scan the well wall 360 degrees around the well. When the logging instrument is underground, the ultrasonic imaging transducer is immersed in oil and separated from the external mud by an acoustic window. Therefore, the experimental device used to study ultrasonic imaging needs to meet the following requirements: on the one hand, the ultrasonic imaging transducer can rotate, on the other hand, the ultrasonic imaging transducer can be in an oil environment, and thirdly, the oil environment can be separated from the external mud by the acoustic window.

[0036] Specifically, Figure 2 , Figure 3As shown, it shows an experimental device for studying ultrasonic imaging according to an embodiment of the present invention, including an ultrasonic imaging transducer fixing frame 102, on which an ultrasonic imaging transducer 101 is fixed, an acoustic window 106 is provided on the outside of the ultrasonic imaging transducer 101, the lower end of the ultrasonic imaging transducer fixing frame 102 is located in the acoustic window 106, the upper end of the ultrasonic imaging transducer fixing frame 102 is fixedly connected with an upper connecting rod 1022, the upper connecting rod 1022 passes through the upper end of the acoustic window 106 for connection with the slide rail mechanism 2, and the upper connecting rod 1022 and the acoustic window 106 are fixedly sealed and connected; the ultrasonic imaging transducer 101 is connected to one end of the electrical connection unit, and the other end of the electrical connection unit passes through the acoustic window 106 and is connected to a power source, an oil filling hole 1033 is provided on the acoustic window 106, and an oil nozzle 108 is threadedly connected to the oil filling hole 1033.

[0037] Specifically, Figure 1 As shown, the experimental device 1 of this embodiment is connected to the slide rail mechanism 2 via an upper connecting rod 1022. The slide rail mechanism 2 adopts, for example, an existing structure of a laboratory. The slide rail mechanism 2 is used to drive the upper connecting rod 1022, the acoustic window 106, the ultrasonic imaging transducer fixing frame 102 and the ultrasonic imaging transducer 101 of this embodiment to rotate, thereby enabling the ultrasonic imaging transducer 101 to rotate 360 ​​degrees.

[0038] The ultrasonic imaging transducer 101 of this embodiment is located in a closed cavity formed by the acoustic window 106 and the upper connecting rod 1022, thereby achieving the purpose of isolating the environment in which the ultrasonic imaging transducer 101 is located from the external environment. Again, the setting of the oil filling hole 1033 on the acoustic window 106 can facilitate the injection of oil into the closed cavity, so that the ultrasonic imaging transducer 101 can be placed in an oil environment, and by placing the entire experimental device 1 of this embodiment in a mud environment, the actual situation that the oil environment is isolated from the external mud through the acoustic window 106 can be simulated.

[0039] As for the slide rail mechanism 2, on the one hand, it can drive the experimental device 1 of this embodiment to move along the X-axis, Y-axis and Z-axis, and on the other hand, it can drive the ultrasonic imaging transducer 101 to rotate, thereby ensuring that the ultrasonic imaging transducer 101 can reach the position required by the experiment to ensure the smooth progress of the experiment.

[0040] Again, the ultrasonic imaging transducer 101 of this embodiment is connected to the power source outside the closed cavity through the electrical connection unit, thereby realizing the electrical connection of the entire device.

[0041] When conducting specific experiments, taking the study of the interaction between ultrasound and cracks in the well wall as an example, different cracks are set in the external mud environment, and the ultrasonic imaging transducer 101 is driven to rotate by the slide rail mechanism 2. At the same time, the ultrasonic imaging transducer 101 emits ultrasound waves outward and receives echoes reflected after passing through the cracks, and then corresponding research and analysis are carried out based on the echoes.

[0042] This embodiment can study the interaction between ultrasonic waves and well wall cracks and rock stratification, and does not require the ultrasonic imaging transducer 101 to be installed on the logging instrument, thus having the advantage of simple and convenient operation.

[0043] In one embodiment, if Figure 3 As shown, the upper connecting rod 1022 is sealingly connected to the upper sealing cover 103, the upper sealing cover 103 is limited on the upper connecting rod 1022, and the upper sealing cover 103 is sealingly connected to the acoustic window 106; the lower end of the ultrasonic imaging transducer fixing frame 102 is fixedly connected to the lower connecting rod 1021, the lower connecting rod 1021 is sealingly connected to the lower sealing cover 104, the lower sealing cover 104 is limited on the lower connecting rod 1021, and the lower sealing cover 104 is sealingly connected to the acoustic window 106; limiting convex rings 1042 are respectively arranged on the outer circumference of the upper sealing cover 103 and the lower sealing cover 104, the two limiting convex rings 1042 are arranged far away from each other, and the acoustic window 106 is limited between the two limiting convex rings 1042; the upper sealing cover 103 is configured to be able to rotate with the upper connecting rod 1022, and the other end of the electrical connection unit passes through the upper sealing cover 103 to be connected to the power supply.

[0044] Specifically, the upper sealing cover 103 is limited on the upper connecting rod 1022, and the upper connecting rod 1022 and the upper sealing cover 103, the upper sealing cover 103 and the acoustic window 106 are all sealed connected; the lower sealing cover 104 is limited on the lower connecting rod 1021, and the lower connecting rod 1021 and the lower sealing cover 104, the lower sealing cover 104 and the acoustic window 106 are all sealed connected, thereby achieving isolation between the closed cavity and the external mud.

[0045] Again, the upper sealing cover 103 is configured to rotate with the upper connecting rod 1022, and the other end of the electrical connection unit passes through the upper sealing cover 103 to connect with the power supply, thereby realizing the connection with the external power supply when the ultrasonic imaging transducer 101 rotates. As an alternative, the lower sealing cover 104 can also be configured to rotate with the upper connecting rod 1022, and the other end of the electrical connection unit passes through the lower sealing cover 104 to connect with the power supply.

[0046] Among them, Figure 3As shown, a lower stopper 105 is threadedly connected to a side of the lower connecting rod 1021 away from the ultrasonic imaging transducer 101 , a lower limiting ring 1023 is provided at the upper end of the lower connecting rod 1021 , and the lower sealing cover 104 is limited between the lower stopper 105 and the lower limiting ring 1023 .

[0047] In this embodiment, the lower sealing cover 104 is limited between the lower stopper 105 and the lower limit ring 1023, wherein the lower limit ring 1023 is located at the upper end of the lower connecting rod 1021, and the inner diameter of the lower sealing cover 104 is smaller than the outer diameter of the lower limit ring 1023, so that the lower limit ring 1023 can be blocked above the lower sealing cover 104; wherein the lower stopper 105 is threadedly connected to the lower connecting rod 1021, so that the lower sealing cover 104 can be pressed on the lower limit ring 1023 by adjusting the lower stopper 105, so as to achieve the purpose of limiting the lower sealing cover 104 by the lower stopper 105 and the lower limit ring 1023. In specific implementation, the lower stopper 105 is, for example, a nut.

[0048] For the lower sealing cover 104, Figure 8 As shown, a lower O-ring groove 1041 is provided on the outer wall and the inner wall, the lower sealing cover 104 is sealed and connected to the acoustic window 106 via a sealing ring in the lower O-ring groove provided on the outer wall, and the lower sealing cover 104 is sealed and connected to the lower connecting rod 1021 via a sealing ring in the lower O-ring groove provided on the inner wall.

[0049] Among them, Figure 3 As shown, an upper stopper 115 is threadedly connected to the side of the upper connecting rod 1022 away from the ultrasonic imaging transducer 101 , an upper limit ring 1024 is provided at the lower end of the upper connecting rod 1022 , and the upper sealing cover 103 is limited between the upper stopper 115 and the upper limit ring 1024 .

[0050] In this embodiment, the upper sealing cover 103 is limited between the upper stopper 115 and the upper limit ring 1024, wherein the upper limit ring 1024 is located at the lower end of the upper connecting rod 1022, and the inner diameter of the upper sealing cover 103 is smaller than the outer diameter of the upper limit ring 1024, so that the upper limit ring 1024 can be blocked below the upper sealing cover 103; wherein the upper stopper 115 is threadedly connected to the upper connecting rod 1022, so that the upper sealing cover 103 can be pressed on the upper limit ring 1024 by adjusting the upper stopper 115, so as to achieve the purpose of limiting the upper sealing cover 103 by the upper stopper 115 and the upper limit ring 1024. In specific implementation, the upper stopper 115 is, for example, a nut.

[0051] For the upper sealing cover 103, as Figure 6 , Figure 7As shown, an upper O-ring groove 1031 is provided on the outer wall and the inner wall, the upper sealing cover 103 is sealed and connected to the acoustic window 106 via a sealing ring provided in the upper O-ring groove of the outer wall, and the upper sealing cover 103 is sealed and connected to the upper connecting rod 1022 via a sealing ring provided in the upper O-ring groove of the inner wall.

[0052] Among them, the upper connecting rod 1022, the ultrasonic imaging transducer fixing frame 102 and the lower connecting rod 1021 can be an integrally formed structure or an integral structure formed by welding, wherein the upper limit ring 1024 is arranged between the upper connecting rod 1022 and the ultrasonic imaging transducer fixing frame 102, and the lower limit ring 1023 is arranged between the lower connecting rod 1021 and the ultrasonic imaging transducer fixing frame 102.

[0053] Among them, Figure 3 As shown, a positioning screw 109 is fixedly connected to the upper connecting rod 1022, and a positioning groove 1035 is opened on the inner wall of the upper sealing cover 103. The length direction of the positioning groove 1035 is parallel to the axis of the upper connecting rod 1022. The positioning screw 109 is located in the positioning groove 1035. The rotation of the upper connecting rod 1022 drives the upper sealing cover 103 to rotate through the positioning screw 109.

[0054] In order to facilitate the electrical connection between the ultrasonic imaging transducer 101 and the power supply when it rotates, it can be known from the above that the upper sealing cover 103 is configured to rotate with the upper connecting rod 1022. Specifically, a threaded hole is provided on the upper connecting rod 1022, and a positioning screw 109 is threadedly connected to the threaded hole. The positioning screw 109 is located in the positioning slot 1035 of the upper sealing cover 103. When the upper connecting rod 1022 rotates under the drive of the slide rail mechanism 2, the positioning screw 109 pushes the side wall of the positioning slot 1035, thereby achieving the purpose of the upper sealing cover 103 rotating with the upper connecting rod 1022. The length direction of the positioning slot 1035 is parallel to the axis of the upper connecting rod 1022.

[0055] The arrangement of this embodiment has the advantage of convenient installation and disassembly. Taking installation as an example, first, the lower sealing cover 104 is put on the lower connecting rod 1021 to make the two sealed, then the upper and lower blocks 105 are screwed on the lower end, and then the sound window 106 is put on the lower sealing cover 104, and the upper sealing cover 103 is put on the upper connecting rod 1022, so that the sound window 106 is respectively sealed and connected to the upper sealing cover 103 and the lower sealing cover 104, and the upper sealing cover 103 is sealed and connected to the upper connecting rod 1022, and finally the upper block 115 is screwed on.

[0056] Among them, Figure 3As shown, the upper and lower ends of the acoustic window 106 are respectively sleeved with reinforcement sleeves 107 , and one end of each reinforcement sleeve 107 away from another reinforcement sleeve 107 is connected to a hook head, which is located between the acoustic window 106 and the corresponding limiting convex ring 1042 .

[0057] The reinforcement sleeve 107 of this embodiment is used to ensure that the acoustic window 106 is always mounted on the upper sealing cover 103 and the lower sealing cover 104, thereby preventing the sealing effect between the acoustic window 106 and the upper sealing cover 103 or the acoustic window 106 and the lower sealing cover 104 from being deteriorated due to radial expansion of the acoustic window 106 due to heat.

[0058] Among them, Figure 3 , Figure 7 As shown, the oil filling hole 1033 is provided on the upper sealing cover 103, and the oil filling hole 1033 is threadedly connected with the oil nozzle 108; Figure 6 As shown, a positioning score line 1034 is provided on the outer side of the upper sealing cover 103 .

[0059] The oil filling hole 1033 is used to add oil into the closed cavity, and the oil nozzle 108 is used to seal the oil in the closed cavity.

[0060] The center lines of the positioning groove 1035 and the positioning line 1034 of this embodiment are in the same plane, and after assembly, the direction of the ultrasonic imaging transducer 101 can be determined by the positioning line 1034. The arrangement of the positioning groove 1035 and the positioning line 1034 of this embodiment ensures accurate identification of the direction of the ultrasonic imaging transducer 101 after assembly, thereby improving the accuracy of the experiment.

[0061] In one embodiment, if Figure 3 As shown, the electrical connection unit includes a connecting column 110 and a first pin, the connecting column 110 is fixed on the ultrasonic imaging transducer fixing frame 102, the first pin is fixedly sealed on the upper sealing cover 103, the connecting column 110 is electrically connected to the electrical connection line of the ultrasonic imaging transducer 101, the connecting column 110 is connected to one end of the first pin, and the other end of the first pin is used to connect to a power source.

[0062] In this embodiment, the electrical connection unit includes a connection column 110 and a first pin. The electrical connection line of the ultrasonic imaging transducer 101 is electrically connected to the connection column 110. The connection column 110 is connected to one end of the first pin, and the other end of the first pin is used to connect to a power source. In order to prevent leakage of oil in the closed cavity, the first pin is fixedly sealed on the upper sealing cover 103 in this embodiment.

[0063] Among them, the first pin is electrically connected to the second pin through plugging, the second pin is used to connect to the power supply, and the first pin is sealed and connected to the second pin; the first pin is a female pin 111, and the second pin is a male pin 112 plugged with the female pin 111; a female pin magazine 1032 is provided on the upper sealing cover 103, the first pin is threadedly connected to the female pin magazine 1032, and the first pin is sealed and connected to the upper sealing cover 103 through an end face seal.

[0064] The arrangement of the first pin and the second pin in this embodiment facilitates the connection between the ultrasonic imaging transducer 101 and the power supply, and the first pin and the second pin are connected by plugging. Fig. 9 As shown, the first pin is provided with an end face sealing groove 1111 and an inner wall sealing groove 1112. The first pin is sealed with the end face of the upper sealing cover 103 through a sealing ring in the end face sealing groove 1111. The first pin is sealed with the male pin 112 through the inner wall sealing groove 1112. The first pin is threadedly connected with the female pin compartment 1032.

[0065] Among them, Figure 4 , Figure 5 As shown, a wiring groove 1025 and a winding post 1026 are provided on the ultrasonic imaging transducer fixing frame 102 , and the wiring groove 1025 and the winding post 1026 are used to facilitate the wiring of the ultrasonic imaging transducer 101 . The winding post 1026 is, for example, arranged between the ultrasonic imaging transducer fixing frame 102 and the upper limit ring 1024 .

[0066] There are two connecting posts 110. When connecting, the electrical connection line and the first pin of the ultrasonic imaging transducer 101 can be electrically connected to any one of the connecting posts. The two connecting posts are provided to facilitate the electrical connection between the ultrasonic imaging transducer 101 and the power supply.

[0067] Among them, Figure 3 As shown, the upper end of the upper connecting rod 1022 is fixedly connected to the lower connecting block 114, and the lower connecting block 114 is fixedly connected to the upper connecting block 113 by screws. The upper connecting block 113 is connected to a threaded connecting rod, and the head of the threaded connecting rod is located in the countersunk groove on the upper connecting block 113. The rod portion of the threaded connecting rod is used to connect with the slide rail mechanism 2.

[0068] In this embodiment, Fig.11 As shown, the upper connecting block 113 is provided with four outer countersunk threaded holes 1132 and one central countersunk threaded hole 1131, wherein the four outer countersunk threaded holes 1132 are used for threaded connection with the lower connecting block 114 through screws, and the central countersunk threaded hole 1131 is used for connecting a threaded connecting rod and placing the head of the threaded connecting rod, and the threaded connecting rod is used to connect with the existing slide rail mechanism 2 in the laboratory; Fig.10As shown, the lower connecting block 114 of this embodiment is provided with four outer threaded holes 1141 and one central threaded hole 1142, wherein the four outer threaded holes 1141 are used to cooperate with the four outer countersunk threaded holes 1132, and the central threaded hole 1142 is threadedly connected to the upper end of the upper connecting rod 1022. The arrangement of this embodiment facilitates the connection between the experimental device 1 and the slide rail mechanism 2.

[0069] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0070] In addition, the terms "one", "two", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0071] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An experimental device for studying ultrasonic imaging, characterized in that: It comprises an ultrasonic imaging transducer fixing frame, on which an ultrasonic imaging transducer is fixed, an outer sleeve of the ultrasonic imaging transducer is provided with an acoustic window, the lower end of the ultrasonic imaging transducer fixing frame is located in the acoustic window, the upper end of the ultrasonic imaging transducer fixing frame is fixedly connected with an upper connecting rod, the upper connecting rod passes through the upper end of the acoustic window for connection with a slide rail mechanism, and the upper connecting rod and the acoustic window are fixedly and sealedly connected; the ultrasonic imaging transducer is connected to one end of an electrical connection unit, the other end of the electrical connection unit passes through the acoustic window and is connected to a power source, an oil filling hole is provided on the acoustic window, and an oil nozzle is threadedly connected to the oil filling hole; The upper connecting rod is sealingly connected with an upper sealing cover, the upper sealing cover is limited on the upper connecting rod, and the upper sealing cover is sealingly connected with the acoustic window; the lower end of the ultrasonic imaging transducer fixing frame is fixedly connected with a lower connecting rod, the lower connecting rod is sealingly connected with a lower sealing cover, the lower sealing cover is limited on the lower connecting rod, and the lower sealing cover is sealingly connected with the acoustic window; Limiting convex rings are respectively arranged on the outer circumferences of the upper sealing cover and the lower sealing cover, and the two limiting convex rings are arranged far away from each other, and the acoustic window is limited between the two limiting convex rings; the upper sealing cover is configured to be able to rotate following the upper connecting rod, and the other end of the electrical connection unit passes through the upper sealing cover to be connected to the power supply.

2. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: A lower stopper is threadedly connected to a side of the lower connecting rod away from the ultrasonic imaging transducer, a lower limiting ring is arranged at the upper end of the lower connecting rod, and the lower sealing cover is limited between the lower stopper and the lower limiting ring.

3. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: An upper stopper is threadedly connected to a side of the upper connecting rod away from the ultrasonic imaging transducer, an upper limit ring is arranged at the lower end of the upper connecting rod, and the upper sealing cover is limited between the upper stopper and the upper limit ring.

4. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: A positioning screw is fixedly connected to the upper connecting rod, and a positioning slot is provided on the inner wall of the upper sealing cover. The length direction of the positioning slot is parallel to the axis of the upper connecting rod. The positioning screw is located in the positioning slot, and the upper connecting rod rotates to drive the upper sealing cover to rotate through the positioning screw.

5. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: The upper and lower ends of the acoustic window are respectively sleeved with reinforcement sleeves, and one end of each reinforcement sleeve away from another reinforcement sleeve is respectively connected with a hook head, and the hook head is located between the acoustic window and the corresponding limiting convex ring.

6. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: The oil filling hole is arranged on the upper sealing cover, and the oil filling hole is threadedly connected with the oil nozzle; and a positioning mark is arranged on the outer side of the upper sealing cover.

7. The experimental device for studying ultrasonic imaging according to claim 1, characterized in that: The electrical connection unit includes a connecting column and a first pin, the connecting column is fixed on the ultrasonic imaging transducer fixing frame, the first pin is fixedly sealed on the upper sealing cover, the connecting column is electrically connected to the electrical connection line of the ultrasonic imaging transducer, the connecting column is connected to one end of the first pin, and the other end of the first pin is used to connect to a power supply.

8. The experimental device for studying ultrasonic imaging according to claim 7, characterized in that: The first plug pin is electrically connected to a second plug pin through plugging, the second plug pin is used to connect to a power source, and the first plug pin is sealed and connected to the second plug pin; The first pin is a female pin, and the second pin is a male pin plugged into the female pin; The upper sealing cover is provided with a female pin compartment, the first pin is threadedly connected to the female pin compartment, and the first pin is sealed and connected to the upper sealing cover through an end face seal; The ultrasonic imaging transducer fixing frame is provided with a wiring groove and a winding post, and there are two connecting posts. The electrical connecting wire of the ultrasonic imaging transducer and the first pin are electrically connected to any one of the connecting posts at the same time.

9. The experimental device for studying ultrasonic imaging according to any one of claims 1 to 8, characterized in that: The upper end of the upper connecting rod is fixedly connected to the lower connecting block, the lower connecting block is fixedly connected to the upper connecting block by screws, the upper connecting block is connected to a threaded connecting rod, the head of the threaded connecting rod is located in the countersunk groove on the upper connecting block, and the rod portion of the threaded connecting rod is used to connect to the slide rail mechanism.

Images