Leakage detection tool for handle shell

Abstract

The utility model provides a leak detection tool for a handle shell, and relates to the field of medical instruments. The leak detection tool for the handle shell comprises a base, a profiling clamping block and a plugging block, the profiling clamping block and the plugging block are arranged on the base and detachably connected with the handle shell, the plugging block plugs one end of the handle shell, the profiling clamping block is connected to the other end of the handle shell, an air inlet hole is formed in the profiling clamping block, and the air inlet hole is communicated with the plugging block. And the handle shell is communicated with an external air source through the air inlet. According to the leak detection tool, the number of parts used for fixing and sealing the handle shell is small, and tedious assembly is not needed, so that the handle shell is rapidly fixed and sealed, and the detection efficiency of leak detection of the handle shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a leak testing fixture for a handle housing. Background Technology

[0002] Endoscopes are precision medical instruments that can be inserted into the body through the mouth or other orifices, allowing medical personnel to observe lesions within the patient's body in real time. Endoscopes have a handle for medical personnel to hold and operate. The handle is hollow and houses various mechanical components and image analysis and transmission instruments. The quality of the handle housing affects the proper functioning of its internal components and the instrument itself.

[0003] Currently, some handle housings produced have microcracks. These microcracks can cause air leakage, affecting the product's pass rate. Therefore, the handle housing needs to be tested for leaks before being assembled into the final endoscope. However, current leak detection devices for handle housings have many components, making assembly and disassembly very cumbersome, resulting in low testing efficiency. Utility Model Content

[0004] This utility model provides a leak testing fixture for handle housings, which enables quick fixing and disassembly of handle housings, thereby improving the testing efficiency of handle housings.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] An embodiment of this utility model provides a leak testing fixture for a handle housing, which includes:

[0007] Base;

[0008] The contouring block is set on the base and is used to detachably connect to the handle housing. The contouring block is provided with an air inlet for connecting to an external air source and for communicating with the handle housing.

[0009] A sealing block is set on the base and is used to detachably connect to the handle housing. The sealing block is used to seal the handle housing.

[0010] Optionally, a clamping element is also provided on the base, which is connected to the sealing block and drives the sealing block to move.

[0011] Optionally, the conformal block includes a plug-in end for plugging into one end of the handle housing, with an air inlet extending through the plug-in end.

[0012] Optionally, the sealing block includes a sealing head and an overlapping groove, wherein the sealing head is used to insert into the end of the handle housing, and the clamping member overlaps the overlapping groove.

[0013] Optionally, the clamping component includes a fixed base, a slide, and a connecting piece;

[0014] The fixed base includes a sliding sleeve and a hinged end seat. A handle is hinged to the hinged end seat. The sliding cylinder and the sliding sleeve are slidably engaged. The two ends of the connecting piece are respectively connected to the sliding cylinder and the handle.

[0015] The end of the slide tube furthest from the handle overlaps with the overlap groove.

[0016] Optionally, the clamping component also includes a screw and a first movable nut and a second movable nut sleeved on the screw, both of which are threadedly connected to the screw.

[0017] The screw is threaded to the slide cylinder, and a fixing nut is provided at the end of the screw, which overlaps the lap groove.

[0018] Optionally, the number of contour blocks, sealing blocks, and clamping parts are all multiple and correspond one-to-one.

[0019] Optionally, the base is provided with a frame, which includes multiple slots, and multiple contoured blocks are respectively assembled in the multiple slots.

[0020] Optionally, the slot wall is provided with a guide protrusion, and the contoured block is provided with a guide groove, the guide protrusion and the guide groove being adapted to each other.

[0021] Optionally, a cutout groove is provided on the base, and the cutout groove is located directly below the handle housing.

[0022] The beneficial effects of the leak-testing fixture for the handle housing in this embodiment of the present invention include, for example:

[0023] The leak testing fixture for the handle housing includes a base, a contouring block, and a sealing block. Both the contouring block and the sealing block are mounted on the base and are detachably connected to the handle housing. The sealing block seals one end of the handle housing, and the contouring block is connected to the other end. The contouring block has an air inlet, allowing the handle housing to communicate with an external air source. This leak testing fixture uses few components for fixing and sealing the handle housing, eliminating the need for complex assembly and enabling rapid fixing and sealing of the handle housing, thereby improving the efficiency of leak detection for the handle housing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a first-view schematic diagram of the leak-testing fixture structure of the handle housing provided in an embodiment of this utility model;

[0026] Figure 2 This is a second-view schematic diagram of the leak-testing fixture structure of the handle housing provided in an embodiment of this utility model;

[0027] Figure 3 This is a first-view schematic diagram of the contour-following card block structure provided in an embodiment of the present utility model;

[0028] Figure 4 This is a second-view schematic diagram of the contour-following card block structure provided in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the sealing block and sealing gasket provided in the embodiments of this utility model;

[0030] Figure 6 This is a schematic diagram of the clamping member provided in an embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the structure when the screw and the sealing block are connected in an embodiment of this utility model;

[0032] Figure 8 This is a schematic diagram of the structure of the rack provided in an embodiment of this utility model.

[0033] Icons: 1-Base; 10-Baseboard; 101-Hollowed Groove; 102-Handheld Groove; 11-Stop Block; 12-Support Column; 2-Shaped Clamping Block; 20-Air Inlet; 21-Plug-in End; 211-Sealing Ring Mounting Groove; 22-Guide Slide Groove; 23-Adapter; 3-Sealing Block; 30-Sealing Head; 31-Overlap Groove; 32-Sealing Gasket; 4-Frame; 40-Clamping Groove; 401-Guide Rib; 5-Clamping Component; 50-Fixed Base; 501-Sliding Sleeve; 502-Hinged End Seat; 503-Handle; 51-Slide Cylinder; 52-Connecting Plate; 53-Screw; 54-Fixed Nut; 55-First Movable Nut; 56-Second Movable Nut; 6-Handle Housing; 60-Pliers Mouth; 61-Pluging Head. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0042] An embodiment of this utility model provides a leak testing fixture for a handle housing, which will be described in detail below.

[0043] Please refer to Figure 1 and Figure 2 The leak detection fixture for the handle housing includes a base 1, a contoured locking block 2, and a sealing block 3. Both the contoured locking block 2 and the sealing block 3 are mounted on the base 1 and are detachably connected to the handle housing 6. The sealing block 3 is used to seal the handle housing 6. The contoured locking block 2 is provided with an air inlet 20, which is used to connect to an external air source and communicate with the handle housing 6. Gas is injected into the handle housing 6 through the external air source to detect leaks. This leak detection fixture can seal and fix the handle housing 6 using only three components: the base 1, the contoured locking block 2, and the sealing block 3. Compared to existing detection devices that require complex assembly, this leak detection fixture has fewer components and can quickly fix / disassemble and seal the handle housing 6 without complicated assembly, thus improving the efficiency of leak detection.

[0044] In order to press the sealing block 3 onto the handle housing 6, a pressing member 5 is also provided on the base 1. The pressing member 5 is connected to the sealing block 3, and the pressing member 5 drives the sealing block 3 to move, thereby pressing the handle housing 6 between the sealing block 3 and the conforming block 2, thus fixing the handle housing 6.

[0045] Specifically, the base 1 includes a base plate 10, a stop block 11, and a support column 12; the support column 12 is connected to the lower part of the base plate 10 and serves to support the base plate 10 and other components on the base plate 10; the stop block 11 is fixed on the side surface of the base plate 10 away from the support column 12 and is used to block the contouring block 2. When the clamping member 5 applies pressure to the handle housing 6, the stop block 11 and the contouring block 2 block the handle housing 6 at the other end opposite to the blocking block 3, thereby fixing the handle housing 6 between the blocking block 3 and the contouring block 2.

[0046] The base plate 10 is also provided with a cutout groove 101 and a handheld groove 102. The cutout groove 101 is located directly below the handle housing 6. When the handle housing 6 is installed between the conformal clip 2 and the sealing block 3, the cutout groove 101 provides a larger operating space to facilitate quick installation / removal of the handle housing 6. The handheld groove 102 is for the convenience of the user to move the entire leak testing fixture. Before and after the leak test, the user can directly hold the leak testing fixture in the handheld groove 102 and take it away.

[0047] refer to Figure 3 and Figure 4The contour block 2 is provided with an air inlet 20, which penetrates the contour block 2 and is connected to the hollow interior of the handle housing 6. Gas can be injected into the handle housing 6 through the air inlet 20 to achieve the detection of the handle housing 6.

[0048] The contour block 2 also includes a plug-in end 21, the shape of which matches the end of the handle housing 6. The plug-in end 21 is plugged into the end of the handle housing 6, and the air inlet 20 passes through the plug-in end 21.

[0049] In order to achieve a sealed connection between the plug end 21 and the handle housing 6, at least one sealing ring mounting groove 211 is provided on the plug end 21. A sealing ring is arranged in the sealing ring mounting groove 211 to achieve a sealed connection with the handle housing 6.

[0050] It should be noted that in order to quickly connect to an external air supply device, an adapter 23 is connected to the air inlet 20. The adapter 23 is sealed to the contour block 2 using sealant. The other end of the adapter 23 is fitted with a vent pipe, which is connected to the external air supply device.

[0051] refer to Figure 5 The sealing block 3 includes a sealing head 30 and an overlapping groove 31. The sealing head 30 is adapted to the end of the handle housing 6 and is inserted into the end of the handle housing 6 to seal the handle housing 6. To further improve the sealing performance between the sealing block 3 and the handle housing 6, a sealing gasket 32 ​​is fitted on the sealing head 30, so that the sealing gasket 32 ​​is in contact with the end face of the handle housing 6.

[0052] The overlap groove 31 is away from the sealing head 30, and the clamping member 5 overlaps with the overlap groove 31, thus connecting the clamping member 5 and the sealing block 3 together through the overlap groove 31.

[0053] refer to Figure 6 and Figure 7 The clamping component 5 includes a fixed base 50, a slide cylinder 51, and a connecting piece 52.

[0054] The fixed base 50 is connected to the base plate 10 by screws. The fixed base 50 includes a sliding sleeve 501 and a hinged end seat 502. A handle 503 is hinged to the hinged end seat 502. The rotation direction of the handle 503 is along the axial direction of the sliding sleeve 501. The sliding cylinder 51 is sleeved inside the sliding sleeve 501 and slides in cooperation with the sliding sleeve 501. The two ends of the connecting piece 52 are respectively connected to the sliding cylinder 51 and the handle 503. One end of the sliding cylinder 51 away from the handle 503 overlaps with the overlap groove 31. When the handle 503 is rotated, the handle 503 drives the sliding cylinder 51 to slide along the sliding sleeve 501. The sliding cylinder 51 then drives the sealing block 3 that overlaps with it to move, thereby applying pressure to fix or loosen the handle housing 6.

[0055] It should be mentioned that the axial direction of the handle housing 6 is on the same straight line as the axial direction of the sliding sleeve 501.

[0056] As an example, the clamping component 5 also includes a screw 53, a section of the slide cylinder 51 is hollow, and the inner wall of the hollow is provided with internal threads. One end of the screw 53 is threadedly connected to the slide cylinder 51. At this time, the sealing block 3 is provided on the end of the screw 53 away from the handle 503. A fixing nut 54 is provided on the end of the screw 53 near the sealing block 3. The fixing nut 54 is locked in the overlapping groove 31 of the sealing block 3, so that the movement of the slide cylinder 51 drives the screw 53 and the sealing block 3 to move synchronously.

[0057] The screw 53 is also fitted with a first movable nut 55 and a second movable nut 56. Both the first movable nut 55 and the second movable nut 56 are threadedly connected to the screw 53. The first movable nut 55 and the second movable nut 56 can rotate and move along the external thread of the outer wall of the screw 53. When the first movable nut 55 is screwed into the fixed nut 54, it is used to press against the sealing block 3 and fix the sealing block 3 on the screw 53. When the first movable nut 55 is screwed into the sliding sleeve 501, it is used to loosen the sealing block 3. At this time, the sealing block 3 can be removed from the screw 53.

[0058] The first movable nut 55 is close to the handle housing 6, and the second movable nut 56 is close to the sliding sleeve 501. When the second movable nut 56 is in contact with the first movable nut 55, the second movable nut 56 can prevent the first movable nut 55 from sliding to the sliding sleeve 501, thereby ensuring the reliability of the sealing block 3 fixed on the screw 53.

[0059] The detachable connection between the sealing block 3 and the screw 53 facilitates the replacement of different models and types of sealing blocks 3 to match different handle housings 6.

[0060] Because existing testing devices can only test one handle housing 6 at a time, batch testing is not possible, resulting in low testing efficiency. To address this, the leak-testing fixture of this invention features a frame 4 on a base 1, through which multiple contoured locking blocks 2 are arranged. Simultaneously, clamping components 5 and sealing blocks 3, corresponding to the number of contoured locking blocks 2, are arranged on the base 1, thereby achieving rapid fixation of multiple handle housings 6 and thus enabling batch testing.

[0061] refer to Figure 8 The frame 4 has multiple slots 40, and each slot 40 has at least two guide ridges 401 on its wall. The contour block 2 has a guide groove 22. The guide ridges 401 and the guide grooves 22 are matched. The guide grooves 22 of the contour block 2 are aligned with the guide ridges 401 and assembled into the slots 40 of the frame 4. The contour block 2 installed in the slots 40 is fixed and will not move, and is used to press against the handle housing 6.

[0062] Of course, the size and shape of the multiple slots 40 can be different, so as to quickly fix different types and / or sizes of handle housings 6 at the same time.

[0063] Refer again Figure 1 Some types of handle housings 6 are also equipped with a clamping port 60, through which corresponding operating components are arranged to enable operations such as applying medication to lesions during endoscopic examination. When performing an air leakage test on the handle housing 6, a plugging head 61 that matches the clamping port 60 must be used to plug and seal the clamping port 60.

[0064] In this embodiment, both the sealing block 3 and the sealing gasket 32 ​​can be made of silicone; the shape of the conforming block 2 can also be other structures, as long as it is compatible with the handle housing 6.

[0065] Of course, this leak testing fixture can not only be used to test and fix the handle housing 6 for leaks, but also to test and fix other objects such as tubular cylinders. The difference is that the corresponding contour block 2 and sealing block 3 need to be replaced.

[0066] How to use the leak detection fixture of this utility model:

[0067] When using this leak-testing fixture to test the handle housing 6, first select the conformal locking block 2 that matches the handle housing 6 and fix the conformal locking block 2 on the base plate 10. Then, tighten the plug head 61 onto the clamping port 60 on the handle housing 6. Align one end of the handle housing 6 with the insertion end 21 of the conformal locking block 2, so that the insertion end 21 is inserted into the port of the handle housing 6. Then align the other end of the handle housing 6 with the sealing head 30, press down the handle 503 to push the screw 53 to move, so that the sealing head 30 is inserted into the port of the handle housing 6 and pressed tightly. Connect the vent tube to the adapter 23, inflate the handle housing 6 with air, and then put the leak-testing fixture with the handle housing 6 fixed on it into the liquid. Observe whether continuous bubbles appear on the handle housing 6 to determine whether the handle housing 6 is leaking. Alternatively, set a pressure detector on the vent tube and judge whether the handle housing 6 is leaking by observing the pressure value change of the pressure detector before and after inflation.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A leak-testing fixture for a handle housing, characterized in that, include: Base (1); A contouring block (2) is provided on the base (1). The contouring block (2) is used to be detachably connected to the handle housing (6). The contouring block (2) is provided with an air inlet (20). The air inlet (20) is used to connect to an external air source and is used to communicate with the handle housing (6). A blocking block (3) is disposed on the base (1). The blocking block (3) is used to detachably connect with the handle housing (6) and to block the handle housing (6).

2. The leak testing fixture for the handle housing according to claim 1, characterized in that, The base (1) is also provided with a clamping member (5), which is connected to the sealing block (3) and the clamping member (5) drives the sealing block (3) to move.

3. The leak testing fixture for the handle housing according to claim 1, characterized in that, The contoured locking block (2) includes a plug-in end (21) for plugging into one end of the handle housing (6), and the air inlet (20) passes through the plug-in end (21).

4. The leak testing fixture for the handle housing according to claim 2, characterized in that, The sealing block (3) includes a sealing head (30) and an overlapping groove (31). The sealing head (30) is used to insert into the end of the handle housing (6), and the clamping member (5) overlaps the overlapping groove (31).

5. The leak testing fixture for the handle housing according to claim 4, characterized in that, The clamping component (5) includes a fixed base (50), a slide cylinder (51), and a connecting piece (52); The fixed base (50) includes a sliding sleeve (501) and a hinged end seat (502). A handle (503) is hinged to the hinged end seat (502). The sliding cylinder (51) is slidably engaged with the sliding sleeve (501). The two ends of the connecting piece (52) are respectively connected to the sliding cylinder (51) and the handle (503). One end of the slide tube (51) away from the handle (503) overlaps the overlapping groove (31).

6. The leak testing fixture for the handle housing according to claim 5, characterized in that, The clamping component (5) also includes a screw (53) and a first movable nut (55) and a second movable nut (56) sleeved on the screw (53), wherein the first movable nut (55) and the second movable nut (56) are threadedly connected to the screw (53); The screw (53) is threadedly connected to the slide (51), and the end of the screw (53) is also provided with a fixing nut (54), and the fixing nut (54) overlaps the overlapping groove (31).

7. The leak testing fixture for the handle housing according to claim 2, characterized in that, The number of each of the contour block (2), the sealing block (3), and the clamping member (5) is multiple and corresponds one-to-one.

8. The leak testing fixture for the handle housing according to claim 1, characterized in that, The base (1) is provided with a frame (4), which includes multiple slots (40), and multiple contoured blocks (2) are respectively assembled in the multiple slots (40).

9. The leak testing fixture for the handle housing according to claim 8, characterized in that, The slot (40) has a guide protrusion (401) on its wall and the contoured block (2) has a guide groove (22) on its wall. The guide protrusion (401) is adapted to the guide groove (22).

10. The leak-testing fixture for the handle housing according to any one of claims 1 to 9, characterized in that, The base (1) has a hollowed-out groove (101) located directly below the handle housing (6).

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