Coupling device for assisting ultrasonic thickness gauge

Abstract

The utility model discloses a coupling device for assisting an ultrasonic thickness gauge. The coupling device comprises a coupling agent containing part, a movable part detachably connected to the bottom of the coupling agent containing part, and a spray gun assembly arranged at the lower end of the movable part and capable of vertically moving along the side wall of the movable part. And a probe of the ultrasonic thickness gauge is placed and limited in the movable part. The coupling agent containing part comprises a coupling agent containing box which is detachably connected to the top of the movable part and is provided with a first cavity for containing a coupling agent, and a coupling agent outlet is formed in the bottom of the first cavity; the first partition plate is arranged on the inner side wall of the coupling agent containing box in a sliding manner; and the gas one-way valve is arranged at the upper end of the couplant containing box and can be communicated with air in the couplant containing box. According to the utility model, the probe and the coupling agent are placed in the same device, so that the probe is prevented from being used for detection after the coupling agent is smeared in actual detection, the operation procedures and dangers are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrasonic thickness measurement, and particularly relates to a coupling device assisting an ultrasonic thickness gauge. Background Art

[0002] At present, the equipment used for non-destructive testing of steel thickness at home and abroad is composed of a host and a probe. Figure 1 In daily testing, ultrasonic thickness gauges are often used for non-destructive testing of steel thickness. The probe is directly connected to the ultrasonic thickness gauge. A coupling agent needs to be applied to the steel. The probe is in close contact with the steel through the coupling agent, so that the steel thickness can be accurately measured.

[0003] However, in actual testing environments, such as steel structure factories (with large spans and high floor heights), it is necessary to measure while standing on a ladder or climbing onto a steel beam. When operating an ultrasonic thickness gauge according to normal procedures, coupling agent should be applied to the steel first, and then measurement should be performed. This often leads to some problems. For example, during the frequent switching of the coupling agent and the thickness gauge, the coupling agent or the thickness gauge may easily fall off the steel beam, making on-site testing difficult and posing a certain risk to the operator.

[0004] Therefore, it is necessary to develop a coupling device to assist the ultrasonic thickness gauge to solve the above problems that arise in daily testing work. Utility Model Content

[0005] The purpose of the utility model is to provide a coupling device to assist an ultrasonic thickness gauge, which solves the problem that existing ultrasonic thickness gauges are difficult to adapt to different testing environments. The probe and coupling agent are placed in the same device, so that in actual testing, it is avoided to apply coupling agent before using the probe for testing, which reduces the operation process and dangers and prevents the probe from falling. It serves the testing work, optimizes the steel thickness testing work, brings convenience to the testing personnel, and improves work efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides a coupling device for assisting an ultrasonic thickness gauge, the coupling device comprising: a coupling agent holding component, a movable component detachably connected to the bottom of the coupling agent holding component, and a spray gun assembly disposed at the lower end of the movable component and vertically movable along the side wall of the movable component; wherein the probe of the ultrasonic thickness gauge is placed and restrained within the movable component.

[0007] The coupling agent holding component includes: a coupling agent box detachably connected to the top of the movable component, having a first cavity for holding the coupling agent, and a coupling agent outlet provided at the bottom of the first cavity; a first partition slidably disposed on the inner side wall of the coupling agent box to divide the first cavity into an upper air cavity and a lower coupling agent cavity; and a gas one-way valve disposed at the upper end of the coupling agent box to communicate with the air in the coupling agent box.

[0008] The movable component includes: an movable chamber, a top of which is detachably connected to the bottom of the coupling agent holding component, a through hole being provided at the center of the bottom thereof, a hollow cylindrical partition plate being vertically provided in the movable chamber at the circumference of the through hole; the hollow cylindrical partition plate dividing the movable chamber into a coupling agent flow chamber and a probe mounting chamber, the coupling agent outflow port being opposite to the coupling agent flow chamber, a spray gun mounting groove penetrating the bottom of the coupling agent flow chamber being provided, and the coupling agent flow chamber being in a sealed state; the probe mounting chamber being used for mounting a probe; a lead groove embedded in the side walls of the movable chamber and the hollow cylindrical partition plate, and being used for leading the wiring of the ultrasonic thickness gauge from outside the movable chamber into the probe mounting chamber; an elastic member being placed in the coupling agent flow chamber and below the lead groove; and a limiting member for limiting the probe in the probe mounting chamber.

[0009] The spray gun assembly is disposed in the coupling agent flow chamber and passes through the spray gun mounting slot. One end of the elastic member is abutted against the spray gun assembly, and the other end is abutted against the lead groove. The spray gun assembly is provided with a liquid one-way valve connected to the nozzle and the coupling agent flow chamber.

[0010] Preferably, a detachable box cover is provided on the top of the coupling agent box, and the gas one-way valve is provided on the box cover.

[0011] Preferably, the bottom of the coupling agent box is connected to the top of the hollow cylindrical partition plate through a thread; the bottom of the coupling agent box is provided with a threaded rod, and the top of the hollow cylindrical partition plate is provided with a threaded hole adapted to the threaded rod.

[0012] Preferably, a sliding groove is provided on the inner side wall of the coupling agent box, and the first partition is slidably provided in the sliding groove.

[0013] Preferably, an embedding groove is provided on the side walls opposite to the upper ends of the active chamber and the hollow cylindrical partition plate; the lead groove is embedded in the embedding groove and sealed with the contact portion between the active chamber and the hollow cylindrical partition plate.

[0014] Preferably, the lead wire groove includes: a "U"-shaped card slot; one end of the bottom of the card slot is supported in the embedding slot of the hollow columnar partition board, and the other end of the bottom of the card slot is supported in the embedding slot of the activity room; the card slot is used for leading out the wiring of the ultrasonic thickness gauge.

[0015] Preferably, the lead wire groove further includes: an annular first support plate; the bottom of the card slot is fixedly connected to the first support plate; symmetrically fixed connection second support plates are also provided on the first support plate; mounting grooves are symmetrically opened on the inner side wall of the activity room, and the end of the second support plate is supported in the mounting groove.

[0016] Preferably, the spray gun assembly includes: an annular plate, which is arranged at the bottom of the coupling agent flow cavity and sleeved on the hollow columnar partition board; a spray head, which is fixedly connected to the lower surface of the annular plate, passes through the spray gun mounting groove, and in the initial state, the distance from the bottom of the spray head to the lower surface of the bottom of the activity room is greater than the distance from the probe to the lower surface of the bottom of the activity room, and the spray head, the annular plate and the coupling agent flow cavity are communicated; a nozzle, which is arranged on the spray head and faces the central axis direction of the activity room; and a liquid one-way valve, which is arranged on the pipeline where the spray head, the annular plate and the coupling agent flow cavity are communicated.

[0017] Preferably, a rubber pad for sealing is arranged on the lower surface of the bottom of the coupling agent storage box; rubber pads for sealing are arranged at the parts of the first partition board in contact with the coupling agent storage box; rubber pads for sealing are arranged at the parts of the annular plate in contact with the coupling agent flow cavity.

[0018] Preferably, the limiting member includes: a cushion block and a snap ring; wherein, the cushion block is arranged between the coupling agent storage box and the probe and is used for limiting the top of the probe; the snap ring is arranged on the lower surface of the bottom of the activity room and is located at the circumference of the through hole and is used for limiting the bottom of the probe.

[0019] The coupling device for assisting an ultrasonic thickness gauge of the present utility model solves the problem that it is difficult for the existing ultrasonic thickness gauge to adapt to different detection environments and the detection is difficult, and has the following advantages:

[0020] (1) The coupling device for assisting an ultrasonic thickness gauge of the present utility model places the probe and the coupling agent in the same device. In actual detection, it avoids using the probe for detection after applying the coupling agent, reduces the operation process and risks, and avoids the probe from falling, serves the detection work, optimizes the steel thickness detection work, brings convenience to the detection personnel, and improves the work efficiency;

[0021] (2) The coupling device of the auxiliary ultrasonic thickness gauge of the present invention combines a coupling agent holding part, a movable part and a spray gun assembly. The design utilizes the elastic member in the movable part to enable the spray gun assembly to move up and down continuously in the movable part, and utilizes the one-way flow of the gas check valve and the liquid check valve to change the volume and pressure of the cavity during the pressing process, thereby achieving the outflow of the coupling agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of an existing ultrasonic thickness gauge and probe.

[0023] Figure 2 It is a three-dimensional schematic diagram of the coupling device of the auxiliary ultrasonic thickness gauge of the present invention.

[0024] Figure 3 It is a side sectional view of the coupling device of the auxiliary ultrasonic thickness gauge of the present invention.

[0025] Figure 4 It is a three-dimensional schematic diagram of the coupling agent containing component of the present invention.

[0026] Figure 5 This is a schematic diagram of the interior of the coupling agent containing component of the present invention.

[0027] Figure 6 It is a three-dimensional schematic diagram of the box cover for containing the coupling agent component of the present invention.

[0028] Figure 7 It is a three-dimensional schematic diagram of the first partition of the utility model.

[0029] Figure 8 A three-dimensional diagram of the movable parts and spray gun assembly of the utility model Figure 1 .

[0030] Figure 9 A three-dimensional diagram of the movable parts and spray gun assembly of the utility model Figure 2 .

[0031] Figure 10 It is a three-dimensional schematic diagram of the activity room of the present utility model.

[0032] Figure 11 It is a three-dimensional schematic diagram of the wire guide duct of the present invention.

[0033] Figure 12 It is a three-dimensional schematic diagram of the clamping ring of the present invention.

[0034] Figure 13 It is a three-dimensional schematic diagram of the spray gun assembly of the present invention. DETAILED DESCRIPTION

[0035] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] A coupling device for assisting an ultrasonic thickness gauge, see Figures 2 to 13 The coupling device comprises a coupling agent container 100, a movable component 200, and a spray gun assembly 300. The movable component 200 is detachably connected to the bottom of the coupling agent container 100. The spray gun assembly 300 is disposed at the lower end of the movable component 200 and is vertically movable along the sidewall of the movable component 200. The ultrasonic thickness gauge probe is placed and restrained within the movable component 200.

[0037] The coupling agent container 100 comprises a coupling agent container 110, a first partition 120, and a gas check valve 130. The coupling agent container 110 is detachably attached to the top of the movable component 200 and defines a first cavity 111 for containing coupling agent. A coupling agent outlet 112 is provided at the bottom of the first cavity 111. The first partition 120 slides along the inner wall of the coupling agent container 110, dividing the first cavity 111 into an upper air chamber and a lower coupling agent chamber. The gas check valve 130 is located at the upper end of the coupling agent container 110 and communicates with the air within the container 110.

[0038] The movable component 200 comprises an active chamber 210, a wire guide slot 220, an elastic member 230, and a stopper 240. The top of the active chamber 210 is detachably connected to the bottom of the couplant container 100. A through-hole 211 runs through the center of the bottom. A hollow cylindrical partition 212 is vertically positioned within the active chamber 210, circumferentially around the through-hole 211. The hollow cylindrical partition divides the active chamber 210 into a couplant flow chamber and a probe mounting chamber. The couplant outlet 112 faces the couplant flow chamber. A spray gun mounting slot extends through the bottom of the couplant flow chamber, ensuring a sealed seal. The probe mounting chamber is used to mount a probe. The wire guide slot 220 is embedded in the sidewalls of the active chamber 210 and the hollow cylindrical partition 212 and is used to route the ultrasonic thickness gauge's wiring from outside the active chamber 210 into the probe mounting chamber. The elastic member 230 is positioned within the couplant flow chamber, below the wire guide slot 220. The limiting member 240 is used to limit the probe in the probe installation cavity.

[0039] The above spray gun assembly 300 is disposed in the coupling agent flow cavity and passes through the spray gun mounting groove. One end of the elastic member 230 abuts against the spray gun assembly 300, and the other end abuts against the lead wire groove 220. A liquid one-way valve 340 communicating with the nozzle 330 and the coupling agent flow cavity is provided on the spray gun assembly 300.

[0040] According to a specific embodiment of the present invention, a detachable lid is provided on the top of the coupling agent storage box 110, and the gas one-way valve 130 is provided on the lid.

[0041] According to a specific embodiment of the present invention, the bottom of the coupling agent storage box 110 is threadedly connected to the top of the hollow columnar partition plate 212.

[0042] Exemplarily, a threaded rod 113 is provided at the center of the bottom of the coupling agent storage box 110, and a threaded hole adapted to the threaded rod 113 is provided at the top of the hollow columnar partition plate 212. The threaded rod 113 is threadedly connected in the threaded hole.

[0043] According to a specific embodiment of the present invention, a sliding groove 114 is provided on the inner side wall of the coupling agent storage box 110, and the first partition plate 120 is slidably disposed in the sliding groove 114.

[0044] According to a specific embodiment of the present invention, embedding grooves are provided on the opposite side walls of the upper ends of the activity room 210 and the hollow columnar partition plate 212. The lead wire groove 220 is embedded in the embedding groove, and the contact part with the activity room 210 and the hollow columnar partition plate 212 is sealed.

[0045] According to a specific embodiment of the present invention, the lead wire groove 220 includes a "U"-shaped card slot. One end of the bottom of the card slot is supported in the embedding groove of the hollow columnar partition plate, and the other end of the bottom of the card slot is supported in the embedding groove of the activity room 210; the card slot is used to lead out the wiring of the ultrasonic thickness gauge.

[0046] According to a specific embodiment of the present invention, the lead wire groove 220 further includes an annular first support plate. The bottom of the card slot is fixedly connected to the first support plate. Second support plates are symmetrically and fixedly connected to the first support plate. Installation grooves are symmetrically provided on the inner side wall of the activity room 210, and the ends of the second support plates are supported in the installation grooves.

[0047] According to a specific embodiment of the present invention, the spray gun assembly 300 includes an annular plate 310, a spray head 320, a nozzle 330, and a liquid check valve 340. The annular plate 310 is positioned at the bottom of the couplant flow chamber and is nested within the hollow cylindrical partition plate 212. The spray head 320 is fixedly connected to the lower surface of the annular plate 310 and extends through the spray gun mounting slot. In the initial state, the distance between the bottom of the spray head 320 and the lower surface of the bottom of the active chamber 210 is greater than the distance between the probe and the lower surface of the bottom of the active chamber 210. The spray head 320, the annular plate 310, and the couplant flow chamber are in communication. The nozzle 330 is positioned on the spray head 320 and faces the central axis of the active chamber 210. The liquid check valve 340 is located on the pipe connecting the spray head 320, the annular plate 310, and the couplant flow chamber.

[0048] According to a specific embodiment of the present invention, a rubber gasket is provided on the lower surface of the bottom of the coupling agent cartridge 110 for sealing. A rubber gasket is also provided on the first partition plate 120 where it contacts the coupling agent cartridge 110. A rubber gasket is also provided on the annular plate 310 where it contacts the coupling agent flow chamber for sealing. This rubber gasket ensures a tight seal within the chamber.

[0049] According to a specific embodiment of the present invention, the position-limiting member 240 includes a spacer 241 and a retaining ring 242. The spacer 241 is positioned between the coupling agent container 110 and the probe to limit the top of the probe. The retaining ring 242 is positioned on the bottom surface of the active chamber 210, circumferentially around the through hole 211, to limit the bottom of the probe.

[0050] For example, the pad 241 can be designed with different thicknesses according to the length of the probe to ensure that the pad 241 can just fit against the bottom of the threaded rod 113 of the coupling agent box 110 .

[0051] For example, the retaining ring 242 can be designed in multiple models to accommodate various types of probes. Rings of different heights can be set on the inner side of the retaining ring so that the bottom lower surface of the probe is at least flush with the bottom lower surface of the retaining ring 242 to ensure that the probe can contact the surface of the object to be detected.

[0052] The working mode and principle of the coupling device of the auxiliary ultrasonic thickness gauge of the utility model are as follows:

[0053] During use, the coupling agent is placed in the coupling agent container 110, and the first partition 120 is installed in the coupling agent container 110, sealing the top opening of the coupling agent container 110. The probe is connected to the ultrasonic thickness gauge's wiring and placed in the probe mounting cavity. The wiring is led out through the lead slot 220. A spacer 241 of varying thickness is selected based on the probe's height. The spacer 241 should fit snugly against the bottom of the threaded rod 113 of the coupling agent container 110. The spacer 241 and the retaining ring 242 provide a fixed position for the probe.

[0054] When the spray gun assembly 300 is pressed, the nozzle 320 moves upward along the couplant flow chamber. The volume within the chamber is compressed, increasing the pressure. The couplant in the couplant flow chamber is sprayed out of the nozzle 330 through the liquid one-way valve 340 and onto the steel. As the nozzle 320 moves upward, the probe moves downward relative to the nozzle 320, so that it is flush with the bottom of the nozzle 320 and contacts the steel to be tested, thereby performing the test.

[0055] The spray gun assembly 300 is released and reset under the action of the elastic member 230. Since the liquid check valve 340 on the spray gun assembly 300 only allows outflow but not inflow, the couplant does not flow back. The cavity volume increases, but the liquid flows out, causing the pressure inside to decrease. At this time, outside air enters the air cavity of the couplant cartridge 110 through the gas check valve 130 at the top of the couplant cartridge 110, pushing the first partition 120 downward and squeezing the couplant into the couplant flow cavity.

[0056] In summary, the coupling device of the auxiliary ultrasonic thickness gauge of the present invention places the probe and the coupling agent in the same device. In actual testing, it is avoided to apply the coupling agent before using the probe for testing, which reduces the operation process and danger, and prevents the probe from falling, thereby improving work efficiency.

[0057] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A coupling device for assisting an ultrasonic thickness gauge, characterized in that: The coupling device comprises: a coupling agent holding component (100), a movable component (200) detachably connected to the bottom of the coupling agent holding component (100), and a spray gun assembly (300) arranged at the lower end of the movable component (200) and vertically movable along the side wall of the movable component (200); wherein the probe of the ultrasonic thickness gauge is placed and limited in the movable component (200); Wherein, the coupling agent containing component (100) comprises: a coupling agent box (110) detachably connected to the top of the movable component (200), having a first cavity (111) for containing the coupling agent, and a coupling agent outlet (112) provided at the bottom of the first cavity (111); a first partition (120) slidably disposed on the inner side wall of the coupling agent box (110) to divide the first cavity (111) into an upper air cavity and a lower coupling agent cavity; and a gas one-way valve (130), which is arranged at the upper end of the coupling agent box (110) and is communicable with the air in the coupling agent box (110); The movable part (200) comprises: The active chamber (210) has a top that is detachably connected to the bottom of the coupling agent holding component (100), and a through hole (211) is provided at the center of the bottom thereof. A hollow cylindrical partition plate (212) is vertically provided in the active chamber (210) at the circumference of the through hole (211); the hollow cylindrical partition plate divides the active chamber (210) into a coupling agent flow chamber and a probe installation chamber, the coupling agent outlet (112) is opposite to the coupling agent flow chamber, and a spray gun installation groove is provided at the bottom of the coupling agent flow chamber, and the coupling agent flow chamber is in a sealed state; the probe installation chamber is used to install the probe; A lead groove (220) is embedded in the side walls of the active chamber (210) and the hollow cylindrical partition plate (212) and is used to lead the wiring of the ultrasonic thickness gauge from outside the active chamber (210) into the probe installation cavity; an elastic member (230) placed in the coupling agent flow cavity and below the lead groove (220); and a limiting member (240) for limiting the position of the probe within the probe installation cavity; The spray gun assembly (300) is arranged in the coupling agent flow chamber and passes through the spray gun installation slot. One end of the elastic member (230) is clamped to the spray gun assembly (300), and the other end is clamped to the lead groove (220). The spray gun assembly (300) is provided with a liquid one-way valve (340) that is connected to the nozzle (330) and the coupling agent flow chamber.

2. The coupling device for auxiliary ultrasonic thickness gauge according to claim 1, characterized in that: A detachable box cover is provided on the top of the coupling agent box (110), and the gas one-way valve (130) is provided on the box cover.

3. The coupling device for assisting an ultrasonic thickness gauge according to claim 1, characterized in that: The bottom of the coupling agent box (110) is connected to the top of the hollow cylindrical partition plate (212) through a threaded connection; the bottom of the coupling agent box (110) is provided with a threaded rod (113), and the top of the hollow cylindrical partition plate (212) is provided with a threaded hole adapted to the threaded rod (113).

4. The coupling device for assisting an ultrasonic thickness gauge according to claim 1, characterized in that: A sliding groove (114) is provided on the inner sidewall of the coupling agent storage box (110), and the first partition plate (120) is slidably arranged in the sliding groove (114).

5. The coupling device for assisting an ultrasonic thickness gauge according to claim 1, characterized in that: Insertion grooves are provided on the opposite sidewalls at the upper ends of the activity room (210) and the hollow columnar partition plate (212); The lead wire groove (220) is embedded in the insertion groove and is sealed at the contact parts with the activity room (210) and the hollow columnar partition plate (212).

6. The coupling device for auxiliary ultrasonic thickness gauge according to claim 5, characterized in that: The lead wire groove (220) includes: a "U"-shaped card slot; One end of the bottom of the card slot is supported in the insertion groove of the hollow columnar partition plate, and the other end of the bottom of the card slot is supported in the insertion groove of the activity room (210); One end of the elastic member (230) is clamped against the spray gun assembly (300), and the other end is clamped against the bottom of the card slot; The card slot is used for leading out the wiring of the ultrasonic thickness gauge.

7. The coupling device for assisting an ultrasonic thickness gauge according to claim 6, characterized in that: The lead wire groove (220) further includes: an annular first support plate; The bottom of the card slot is fixedly connected to the first support plate; Second support plates are symmetrically and fixedly connected to the first support plate; mounting grooves are symmetrically provided on the inner sidewall of the activity room (210), and the ends of the second support plates are supported in the mounting grooves.

8. The coupling device for assisting an ultrasonic thickness gauge according to claim 1, characterized in that: The spray gun assembly (300) includes: An annular plate (310) which is arranged at the bottom of the coupling agent flow cavity and sleeved on the hollow columnar partition plate (212); A spray head (320) which is fixedly connected to the lower surface of the annular plate (310), passes through the spray gun mounting groove, and in the initial state, the distance from the bottom of the spray head (320) to the lower surface of the bottom of the activity room (210) is greater than the distance from the probe to the lower surface of the bottom of the activity room (210), and the spray head (320), the annular plate (310) and the coupling agent flow cavity are connected; A nozzle (330) which is arranged on the spray head (320) and faces the central axis direction of the activity room (210); And A liquid one-way valve (340) which is arranged on the pipeline where the spray head (320), the annular plate (310) and the coupling agent flow cavity are connected.

9. The coupling device for assisting an ultrasonic thickness gauge according to claim 8, characterized in that: A rubber pad for sealing is provided on the lower surface of the bottom of the coupling agent storage box (110); A rubber pad for sealing is provided at the part of the first partition plate (120) in contact with the coupling agent storage box (110); A rubber pad for sealing is provided at the part of the annular plate (310) in contact with the coupling agent flow cavity.

10. The coupling device for assisting an ultrasonic thickness gauge according to claim 1, characterized in that: The limiting member (240) includes: a cushion block (241) and a snap ring (242); Wherein, the cushion block (241) is arranged between the coupling agent storage box (110) and the probe and is used for limiting the top of the probe; The snap ring (242) is arranged on the lower surface of the bottom of the activity room (210) and is at the circumference of the through hole (211) and is used for limiting the bottom of the probe.

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