Leak detection tool for electronic endoscope hose

Abstract

The invention belongs to the technical field of endoscope detection, and particularly relates to a leak detection tool for an electronic endoscope hose. The two ends of the rack are fixedly connected with an air inlet connector and an expansion plug respectively, the endoscope hose is connected between the air inlet connector and the expansion plug, and the air inlet connector is connected with an air inlet valve; wherein the expansion plug is used for plugging one end of the endoscope hose, and gas enters the endoscope hose from the gas inlet connector; the foam spraying assembly is used for spraying foam to the joints of the endoscope hose, the air inlet connector and the expansion plug; the endoscope hose is connected between the expansion plug and the air inlet connector, the air bag air inlet mechanism injects air into the endoscope hose, the expansion head expands after the air bag air inlet mechanism pressurizes the endoscope hose to a certain value, the sealing performance of the two ends of the endoscope hose is guaranteed, and the purpose of soft leakage detection of an endoscope is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of endoscope detection, in particular to a leak detection tool for an electronic endoscope hose. Background Art

[0002] Medical electronic flexible endoscopes are well known in the industry as waterproof medical devices. In order to improve the yield rate during the manufacturing process, endoscopes are generally subject to multiple sealing tests when they are made into semi-finished and finished products. The insertion part of the endoscope concentrates precision electronic devices and precision mechanical structures, so it is necessary to conduct rigorous leak detection on them.

[0003] However, the important joints of the endoscope hose have a complex internal structure, and leak detection at the semi-finished product joints is difficult to achieve. In addition, the leak detection points have specific pressure value pressure resistance leakage requirements. Therefore, endoscope leak detection can only be fully performed after the finished product is assembled, and the scope body needs to be disassembled to check for leaks, which is very inefficient. When the existing leak detection device is used to leak the endoscope hose, the sealing of the endoscope hose joint is poor, and the leak is not easy to find, which affects the test results of the endoscope hose. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an electronic endoscope hose leak detection tool, which is equipped with a spraying component to spray foam on the connection of the endoscope hose to ensure the sealing of the connection, and then detect the side leakage of the endoscope hose, aiming to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: the electronic endoscope hose leak detection tool proposed in the present invention includes: a frame; an air inlet connector and an expansion plug are respectively fixedly connected at both ends of the frame, the endoscope hose is connected between the air inlet connector and the expansion plug, and the air inlet connector is connected to an air inlet valve; wherein the expansion plug is used to plug one end of the endoscope hose, and the gas enters the endoscope hose from the air inlet connector; a foam spraying assembly is used to spray foam on the connection between the endoscope hose and the air inlet connector and the expansion plug.

[0006] As a preferred technical solution of the present invention, the foam spray assembly includes a connecting frame, a pair of annular frames are symmetrically fixedly connected at both ends of the connecting frame, and an opening is provided at one end of the annular frame; and an annular sliding hole is provided on the annular sliding hole, a reciprocating slider is slidably connected to the annular sliding hole, and a spray pipe is fixedly connected to the slider, and when the slider slides from one end of the annular sliding hole to the other end, the foam is evenly sprayed on the connection of the endoscope hose through the spray pipe.

[0007] As a preferred technical solution of the present invention, a foam compression tank is installed on the connecting frame, and the foam compression tank is connected to the spraying pipe through a connecting pipe.

[0008] As a preferred technical solution of the present invention, a pair of moving blocks are slidably connected to the connecting frame, a rotating disk is rotatably connected to the moving block, and a connecting rod is rotatably connected between the rotating disk and the slider; a driving mechanism is installed at the center of the connecting frame to drive the moving block to slide back and forth, wherein each time the moving block moves back and forth, it can drive the slider to slide from one end of the annular sliding hole to the other end.

[0009] As a preferred technical solution of the present invention, a rotating part is coaxially connected to the rotating disk, and a rack matching the rotating part is fixedly connected to the connecting frame; the rotating part includes: an outer gear ring, which is meshed with the rack; a ratchet, which is rotatably connected to the inside of the outer gear ring, and the ratchet is coaxially fixedly connected to the rotating disk, and a pawl is connected to the inner wall of the outer gear ring, and an elastic part is fixedly connected between the pawl and the inner wall of the outer gear ring.

[0010] As a preferred technical solution of the present invention, the driving mechanism includes: a pair of coaxially rotating rollers, the surfaces of which are provided with a pair of spiral grooves in opposite directions; a guide frame fixedly connected to the connecting frame; a guide block slidably connected to the guide frame, and the guide block is fixedly connected to the moving block via a fixed rod.

[0011] As a preferred technical solution of the present invention, a driving motor is installed on the connecting frame to drive the rotating roller to rotate; an arc block that slides with the spiral groove is connected to the guide block, and when the rotating roller rotates, it drives the guide block to slide back and forth on the guide frame.

[0012] As a preferred technical solution of the present invention, the air intake valve is connected to a hollow screw, a sleeve is movably connected to the surface of the screw, an expansion head is connected to the screw for blocking the inner hole of the endoscope hose, and a butterfly nut is connected to the screw for driving the sleeve to move.

[0013] The beneficial effects of the present invention are: 1. The present invention connects the endoscope hose between the expansion plug and the air inlet joint, and injects gas into the endoscope hose through the airbag air inlet mechanism. After the pressure is increased to a certain value, the expansion head expands, thereby ensuring the sealing of both ends of the endoscope hose and achieving the purpose of soft leak detection of the endoscope.

[0014] 2. The present invention is provided with a foam spraying assembly to spray foam on the connection between the endoscope hose and the expansion plug and the air inlet joint, which makes it easy to observe the sealing condition of the connection of the endoscope hose. A driving mechanism is also provided to drive the spraying pipe to reciprocate, thereby achieving comprehensive spraying around the endoscope hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the electronic endoscope hose leak detection tool proposed by the present invention.

[0016] Figure 2This is a schematic structural diagram of the foam spraying assembly proposed by the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the driving mechanism proposed in the present invention.

[0018] Figure 4 This is a schematic structural diagram of the rotating part proposed in the present invention.

[0019] Figure 5 This is a schematic structural diagram of the air intake connector proposed by the present invention.

[0020] In the figure: 1, frame; 2, foam spraying assembly; 21, connecting frame; 22, driving mechanism; 221, rotating roller; 222, guide frame; 223, guide block; 224, arc block; 225, spiral groove; 23, moving block; 24, rotating member; 241, outer gear ring; 242, ratchet; 243, ratchet pawl; 244, elastic member; 26, fixing rod; 27, rotating disk; 28, rack; 29, Annular frame; 210, annular sliding hole; 211, opening; 212, sliding block; 213, spray pipe; 214, connecting pipe; 215, foam compression tank; 216, driving motor; 217, connecting rod; 3, air inlet connector; 31, air inlet valve; 32, screw; 33, nut; 34, expansion head; 35, sliding sleeve; 4, expansion plug; 5, air bag air inlet mechanism; 51, pressure gauge; 6, endoscope hose. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Embodiment: This embodiment discloses an electronic endoscope hose leak detection tool, such as Figure 1-Figure 5 As shown, it includes: a frame 1; an air inlet connector 3 and an expansion plug 4 are fixedly connected at both ends of the frame 1, an endoscope hose 6 is connected between the air inlet connector 3 and the expansion plug 4, and an air inlet valve 31 is connected to the air inlet connector 3; wherein, the expansion plug 4 can block one end of the endoscope hose 6 after the air is expanded, and the gas enters the endoscope hose 6 from the air inlet connector 3; an airbag air inlet mechanism 5 is connected to the air inlet connector 3, which is used to inflate the endoscope hose 6, and a pressure gauge 51 is connected to the airbag air inlet mechanism 5, and the airbag air inlet mechanism 5 continuously pressurizes the endoscope hose 6 with a pressure of 0-40Kpa, and maintains the pressure for a period of time, and the pressure change is observed through the pressure gauge 51.

[0023] like Figure 2-4As shown, the foam spraying assembly 2 is used to spray foam on the connection between the endoscope hose 6 and the air inlet connector 3 and the expansion plug 4 to observe whether there is air leakage at the connection; the foam spraying assembly 2 includes a connecting frame 21, the connecting frame 21 is fixedly connected to the frame 1, and a pair of annular frames 29 are symmetrically fixedly connected at both ends of the connecting frame 21, the annular frames 29 are sleeved on the periphery of the connection at both ends of the endoscope hose 6, and an opening 211 is provided at one end of the annular frame 29 to facilitate the installation of the annular frame 29; and an annular sliding hole 210 is provided on the annular sliding hole 210, and a reciprocating slider 212 is slidably connected to the annular sliding hole 210, and a spraying pipe 213 is fixedly connected to the slider 212, and a spraying hole is provided on the spraying pipe 213, and the spraying hole is always facing the connection of the endoscope hose 6, and a foam compression tank 215 is installed on the connecting frame 21, and the foam compression tank 215 is connected to the The connecting pipe 214 is connected to the spray pipe 213, and a valve is connected to the foam compression tank 215. When the valve is opened, foam can be automatically sprayed out from the spray pipe 213. When the slider 212 slides from one end of the annular sliding hole 210 to the other end, the foam is evenly sprayed on the connection of the endoscope hose 6 through the spray pipe 213; a pair of moving blocks 23 are slidably connected to the connecting frame 21, and a rotating disk 27 is rotatably connected to the moving block 23. There is a large friction between the rotating disk 27 and the moving block 23. A connecting rod 217 is rotatably connected between the rotating disk 27 and the slider 212, and one end of the connecting rod 217 is rotatably connected to the edge of the rotating disk 27; a driving mechanism 22 is installed in the center of the connecting frame 21 for driving the moving block 23 to slide back and forth, wherein each back and forth movement of the moving block 23 can drive the slider 212 to slide from one end of the annular sliding hole 210 to the other end.

[0024] Among them, Figure 2 and Figure 4As shown, a rotating member 24 is coaxially connected to the rotating disk 27, and a rack 28 cooperating with the rotating member 24 is fixedly connected to the connecting frame 21; the rotating member 24 includes: an outer ring gear 241, the outer ring gear 241 meshes with the rack 28; a ratchet 242, the ratchet 242 is rotatably connected to the inside of the outer ring gear 241, and the ratchet 242 is coaxially fixedly connected to the rotating disk 27, a pawl 243, connected to the inner wall of the outer ring gear 241, and an elastic member 244 is fixedly connected between the pawl 243 and the inner wall of the outer ring gear 241; when the moving block 23 moves in the direction away from the annular frame 29, it drives the slider 212 to slide from one end of the annular sliding hole 210 to the center position, and the rack 28 drives the outer ring gear 241 to rotate. At this time, when the outer ring gear 241 rotates, it drives the ratchet 242 to rotate, and when the ratchet 242 rotates, it drives the rotating disk 27 to rotate, so that the connection point between the connecting rod 217 and the rotating disk 27 can From the left side to the right side; when the moving block 23 moves toward the direction close to the annular frame 29, due to the exchange of the connection position of the connecting rod 217 and the rotating disk 27, the connecting rod 217 pushes the slider 212 to slide from the center of the annular sliding hole 210 to the other end position. During the movement of the moving block 23, the rack 28 drives the outer gear ring 241 to rotate in the opposite direction. At this time, when the outer gear ring 241 rotates, the ratchet 242 remains stationary and the rotating disk 27 does not rotate; thereby, when the moving block 23 reciprocates back and forth, it can drive the slider 212 to slide from one end of the annular sliding hole 210 to the other end, ensuring that the spray pipe 213 evenly sprays foam on the surrounding surface of the connection of the endoscope hose 6 to avoid the presence of missed spraying positions, wherein an opening 211 is provided on the annular frame 29, and the spraying area of ​​the spray pipe 213 can cover the position of the connection of the endoscope hose 6 corresponding to the opening 211.

[0025] like Figure 3 As shown, the driving mechanism 22 includes: a pair of coaxially rotating rollers 221, the two rotating rollers 221 correspond to the two moving blocks 23 respectively, and a pair of spiral grooves 225 in opposite directions are provided on the surface of the rotating rollers 221; a guide frame 222, which is fixedly connected to the connecting frame 21; a guide block 223 is slidably connected to the guide frame 222, and the guide block 223 is fixedly connected to the moving block 23 through a fixing rod 26, and an arc block 224 slidably matched with the spiral groove 225 is connected to the guide block 223, when the arc block 224 can slide from the end of one of the spiral grooves 225 to the head end of the other spiral groove 225, a driving motor 216 is installed on the connecting frame 21, which is used to drive the rotating rollers 221 to rotate, and the driving motor 216 drives the two rotating rollers 221 to rotate simultaneously through gears, and when the rotating rollers 221 rotate, the guide block 223 is driven to slide back and forth on the guide frame 222, thereby driving the moving block 23 to slide on the connecting frame 21.

[0026] like Figure 5As shown, a hollow screw 32 is connected to the air inlet valve 31, a sleeve 35 is movably connected to the surface of the screw 32, an expansion head 34 for blocking the inner hole of the endoscope hose 6 is connected to the screw 32, a butterfly nut 33 is connected to the screw 32 for driving the sleeve 35 to move, the sleeve 35 is used to adjust the position of the expansion head 34, and the expansion head 34 expands after being inflated to block the inner hole of the endoscope hose 6.

[0027] Working principle: install the two ends of the endoscope hose 6 on the expansion head 34 and the expansion plug 4 respectively. After the expansion head 34 and the expansion plug 4 are inflated, they respectively block and seal the two ends of the endoscope hose 6. Then, the airbag air intake mechanism 5 continuously pressurizes the endoscope hose 6 with a pressure of 0-40Kpa, and the foam spraying assembly 2 is used to evenly spray foam on the surrounding surface of the connection at both ends of the endoscope hose 6. During the spraying process, open the valve on the foam compression tank 215, start the drive motor 216 to drive the moving block 23 to move back and forth, and then drive the slider 212 to slide from one end of the annular slide hole 210 to the other end. During the sliding process, the spraying pipe 213 evenly sprays foam on the surrounding surface of the connection at both ends of the endoscope hose 6, thereby avoiding air leakage at the connection at both ends of the endoscope hose 6 affecting the test results. Under the premise of ensuring the sealing of the connection at both ends of the endoscope hose 6, observe the changes in the pressure gauge 51.

[0028] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Electronic endoscope hose leak detection tool, characterized in that: include: Rack(1); An air intake connector (3) and an expansion plug (4) are fixedly connected to both ends of the frame (1), an endoscope hose (6) is connected between the air intake connector (3) and the expansion plug (4), and an air intake valve (31) is connected to the air intake connector (3); The expansion plug (4) is used to plug one end of the endoscope hose (6), and gas enters the endoscope hose (6) from the air inlet connector (3); the air inlet connector (3) is connected to an airbag air inlet mechanism (5) for inflating the endoscope hose (6), and the airbag air inlet mechanism (5) is connected to a pressure gauge (51); The foam spraying assembly (2) is used to spray foam on the connection between the endoscope hose (6), the air inlet connector (3) and the expansion plug (4).

2. The electronic endoscope hose leak detection tool according to claim 1, characterized in that: The foam spraying assembly (2) comprises a connecting frame (21), a pair of annular frames (29) are symmetrically fixedly connected at both ends of the connecting frame (21), and an opening (211) is provided at one end of the annular frame (29); and an annular sliding hole (210) is provided on the annular sliding hole (210), a sliding block (212) capable of reciprocating movement is slidably connected to the annular sliding hole (210), and a spraying pipe (213) is fixedly connected to the sliding block (212), and when the sliding block (212) slides from one end of the annular sliding hole (210) to the other end, foam is evenly sprayed on the connection points at both ends of the endoscope hose (6) through the spraying pipe (213).

3. The electronic endoscope hose leak detection tool according to claim 2, characterized in that: A foam compression tank (215) is installed on the connecting frame (21), and the foam compression tank (215) is connected to the spraying pipe (213) via a connecting pipe (214).

4. The electronic endoscope hose leak detection tool according to claim 3, characterized in that: A pair of moving blocks (23) are slidably connected to the connecting frame (21), a rotating disk (27) is rotatably connected to the moving blocks (23), and a connecting rod (217) is rotatably connected between the rotating disk (27) and the slider (212); a driving mechanism (22) is installed at the center of the connecting frame (21) for driving the moving blocks (23) to slide back and forth, wherein each back and forth movement of the moving blocks (23) can drive the slider (212) to slide from one end of the annular sliding hole (210) to the other end.

5. The electronic endoscope hose leak detection tool according to claim 4, characterized in that: A rotating member (24) is coaxially connected to the rotating disk (27), and a rack (28) cooperating with the rotating member (24) is fixedly connected to the connecting frame (21); the rotating member (24) comprises: an outer gear ring (241), the outer gear ring (241) meshing with the rack (28); a ratchet (242), the ratchet (242) rotatably connected inside the outer gear ring (241), and the ratchet (242) is coaxially fixedly connected to the rotating disk (27); a ratchet pawl (243), connected to the inner wall of the outer gear ring (241), and an elastic member (244) is fixedly connected between the ratchet pawl (243) and the inner wall of the outer gear ring (241).

6. The electronic endoscope hose leak detection tool according to claim 5, characterized in that: The driving mechanism (22) comprises: a pair of coaxially rotating rollers (221), the surfaces of the rotating rollers (221) being provided with a pair of spiral grooves (225) in opposite directions; a guide frame (222) fixedly connected to the connecting frame (21); a guide block (223) slidably connected to the guide frame (222), and the guide block (223) being fixedly connected to the moving block (23) via a fixing rod (26).

7. The electronic endoscope hose leak detection tool according to claim 6, characterized in that: The connecting frame (21) is provided with a driving motor (216) for driving the rotating roller (221) to rotate; the guide block (223) is connected with an arc block (224) that slidably cooperates with the spiral groove (225); when the rotating roller (221) rotates, the guide block (223) is driven to slide back and forth on the guide frame (222).

8. The electronic endoscope hose leak detection tool according to claim 7, characterized in that: The air inlet valve (31) is connected to a hollow screw (32), a sliding sleeve (35) is movably connected to the surface of the screw (32), an expansion head (34) for blocking the inner hole of the endoscope hose (6) is connected to the screw (32), and a butterfly nut (33) is connected to the screw (32) for driving the sliding sleeve (35) to move.

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