Electronic endoscope leak detection connecting assembly and electronic endoscope integral sealing detection equipment

Abstract

The utility model discloses an electronic endoscope leak hunting connecting assembly which comprises a locking cover sleeve, a valve gland and a leak hunting valve body which are coaxially arranged, a rotating cylinder is arranged outside the front end of the leak hunting valve body, a valve element is arranged inside the front end of the leak hunting valve body, and the rotating cylinder is connected with the locking cover sleeve through a fixing pin. A guide inclined face is arranged at the front end of the outer wall of the valve gland, the sealing ring and the guide inclined face are in contact extrusion to form radial sealing, and the contact face is located between the front-end circumferential edge and the rear-end circumferential edge. Direct axial plugging is replaced by a rotating mode, and the guide inclined plane is arranged, so that a sealing ring cannot be scratched by sharp edges, the sealing ring is prevented from being damaged, the service life is prolonged, the sealing reliability and safety are improved, meanwhile, the structure is simple, and the machining difficulty is reduced. The utility model also discloses electronic endoscope integral sealing detection equipment comprising the electronic endoscope leak hunting connection assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to endoscope detection technical field, especially, relate to a kind of electronic endoscope leak detection connecting assembly. In addition, the utility model further relates to a kind of electronic endoscope whole body sealing detection equipment comprising the electronic endoscope leak detection connecting assembly described above. BACKGROUND

[0002] Electronic endoscope as a kind of medical equipment, it has very extensive application in medical process, in order to guarantee the reliability and stability of electronic endoscope, ensure that it can work normally, electronic endoscope finished product needs to be carried out whole body sealing test. When carrying out sealing test, leak detector is needed to determine whether endoscope exists leakage.

[0003] Among them, in order to guarantee that leak detector and endoscope are stably connected, corresponding connecting assembly needs to be used, and the connecting assembly includes locking cover sleeve and valve gland, the front end of locking cover sleeve is provided with the pin of connecting leak detector, valve gland is connected with subsequent equipment, when using, valve gland is inserted into the inside of locking cover sleeve, and sealing ring is arranged on the inner wall of locking cover sleeve, and radial sealing is formed by contacting with valve gland. In the prior art, in order to realize the switching of the open and closed state of leak detection connecting assembly, valve gland needs to be directly axially inserted and pulled out in locking cover sleeve, which can damage sealing ring. Further, the front end of valve gland chamfer has protruding edge, which is relatively sharp, and the edge can scratch sealing ring when repeatedly axially inserting and pulling out valve gland, so that the service life of sealing ring is reduced, and the problem of poor sealing occurs.

[0004] Therefore, how to provide an electronic endoscope leak detection connecting assembly avoiding damaging sealing ring is a technical problem to be solved by those skilled in the art at present. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an electronic endoscope leak detection connecting assembly, which replaces direct axial insertion and pulling out by rotating mode, and sets guiding slope, so that the edge of valve gland does not touch sealing ring, avoids damaging sealing ring, prolongs service life and improves sealing reliability. Another object of the utility model is to provide an electronic endoscope whole body sealing detection equipment comprising the electronic endoscope leak detection connecting assembly described above.

[0006] In order to solve the above technical problems, the utility model provides a kind of electronic endoscope leak detection connection assembly, including coaxially arranged locking cover sleeve, valve gland and leak detection valve body, the front end of the leak detection valve body is inserted into the valve gland, the valve gland is inserted into the locking cover sleeve inside by the rear end opening of the locking cover sleeve, the locking cover sleeve inner wall is provided with sealing ring, the valve gland outer wall is compressed the sealing ring, the front end of the leak detection valve body is provided with rotating cylinder, the front end inside of the leak detection valve body is provided with valve core, the rotating cylinder is connected by fixed pin The locking cover sleeve, the front end of the leak detection valve body is provided with rotating slide groove, and the transmission pin passing through the rotating slide groove is connected with the valve core and the rotating cylinder;

[0007] Preferably, the front end of the valve gland outer wall is provided with a guide slope, the diameter of the front end circumferential edge of the guide slope is smaller than the inner diameter of the sealing ring, the diameter of the rear end circumferential edge of the guide slope is larger than the inner diameter of the sealing ring, after the valve gland is installed in place, the front end circumferential edge passes through the sealing ring, the sealing ring is in contact with the guide slope to form a radial seal, and the contact surface is located between the front end circumferential edge and the rear end circumferential edge.

[0008] Preferably, the valve gland is provided with a guide pin, and the locking cover sleeve is provided with a guide groove at a corresponding position, the guide pin is embedded in the guide groove, and rotating the locking cover sleeve drives the rotating cylinder and the valve core to rotate synchronously, and the guide pin slides along the guide groove.

[0009] Preferably, the rotating slide groove is a spiral groove, and the guide groove is an L-shaped guide groove, and the rotating cylinder and the valve core move forward and backward while rotating.

[0010] Preferably, the leak detection valve body is provided with a communication hole penetrating front and back, the valve core is arranged at the front end inside the communication hole, the communication hole is a stepped hole, the diameter of the front end of the stepped hole is larger than the diameter of the rear end, the valve core is embedded in the front end of the stepped hole, and the rear end surface of the valve core can tightly close the step surface of the stepped hole, and the valve core is provided with flat square notches on both sides.

[0011] Preferably, the rear end surface of the valve core is provided with a sealing gasket.

[0012] Preferably, the rear end of the valve gland outer wall is a cylindrical surface, the diameter of the cylindrical surface matches the diameter of the locking cover sleeve inner wall, and the diameter of the rear end circumferential edge is smaller than or equal to the diameter of the cylindrical surface.

[0013] Preferably, the front end circumferential edge and the front end surface of the valve gland are smoothly transitioned, and the rear end circumferential edge and the front end of the cylindrical surface are smoothly transitioned.

[0014] Preferably, the guide slope is specifically a conical surface with gradually increasing diameter from the front end to the rear end or an outwardly convex arc surface.

[0015] Preferably, the guide slope is specifically two conical surfaces arranged continuously, the diameters of the two conical surfaces gradually increase from the front end to the rear end, and the included angle between the front end conical surface and the axis is smaller than the included angle between the rear end conical surface and the axis.

[0016] The utility model provides a kind of electronic endoscope overall sealed detection equipment, including the electronic endoscope leak detection connecting assembly of any one described above.

[0017] The utility model provides a kind of electronic endoscope leak detection connecting assembly, including coaxially arranged locking cover sleeve, valve gland and leak detection valve body, locking cover sleeve front end is provided with the pin for connecting leak detection meter, leak detection valve body's front end inserts valve gland, the rear end of leak detection valve body is used to connect electronic endoscope cavity to be measured, valve gland is inserted into locking cover sleeve interior by locking cover sleeve rear end opening, locking cover sleeve inner wall is provided with annular groove, annular groove is provided with sealing ring, valve gland outer wall compacts sealing ring, leak detection valve body is provided with the through hole of communication in front and back, leak detection valve body's front end outside is provided with rotating cylinder, leak detection valve body's through hole front end inside is provided with valve core, rotating cylinder is connected locking cover sleeve by fixed pin, leak detection valve body front end is provided with rotary sliding slot, drive pin that passes through rotary sliding slot connects valve core and rotating cylinder, rotating locking cover sleeve is rotated with the rotation of rotating cylinder and valve core, so that valve core closes or opens through hole.

[0018] When switching on and off state is needed, rotating locking cover sleeve, and then rotating rotating cylinder and valve core, the relative position of valve core and through hole is changed while valve core rotates, so that valve core closes or opens through hole, and through hole is connected with electronic endoscope cavity to be measured and leak detection meter respectively, that is, the on or off of electronic endoscope cavity to be measured and leak detection meter is realized by the position transformation of valve core, and leakage detection can be carried out in on state. Replace direct axial plug-in by rotating mode, there is no sharp edge to scratch sealing ring, avoid damaging sealing ring, prolong service life, improve sealing reliability and safety, while simple structure, reduce processing difficulty.

[0019] Further, the front end of the valve gland outer wall is provided with a guide slope, since the diameter of the front end circumferential edge of the guide slope is smaller than the inner diameter of the sealing ring, during the process of inserting the valve gland into the locking cover sleeve, the front end of the valve gland directly passes through the sealing ring, the front end circumferential edge does not touch the sealing ring, and with the continuous insertion, since the diameter of the rear end circumferential edge of the guide slope is larger than the inner diameter of the sealing ring, the guide slope gradually increases, the guide slope contacts the sealing ring, and then the sealing ring is extruded to form a radial seal, meanwhile, due to the axial positioning of the sealing ring and the length setting of the guide slope, after installation, the contact surface is located between the front end circumferential edge and the rear end circumferential edge, that is, the rear end circumferential edge also does not touch the sealing ring. During the repeated insertion and extraction of the valve gland, the sealing ring only contacts the surface structure, and the two end edges do not touch the sealing ring, so that the sealing ring is not scratched by sharp edges, the sealing ring is prevented from being damaged, the service life is prolonged, the sealing reliability and safety are improved, meanwhile, the structure is simple, the machining difficulty is reduced.

[0020] The utility model also includes a kind of electronic endoscope integral sealing detection equipment comprising above-mentioned electronic endoscope leak detection connecting component, since above-mentioned electronic endoscope leak detection connecting component has above-mentioned technical effect, above-mentioned electronic endoscope integral sealing detection equipment should also have same technical effect, and here will not be introduced in detail. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic view of one embodiment of the electronic endoscope leak detection connecting component provided by the utility model;

[0022] Figure 2 It is an external structure schematic view of one embodiment of the electronic endoscope leak detection connecting component provided by the utility model;

[0023] Figure 3 It is an internal structure schematic view of one embodiment of the electronic endoscope leak detection connecting component provided by the utility model;

[0024] Figure 4 It is a valve body structure schematic view of one embodiment of the electronic endoscope leak detection connecting component provided by the utility model;

[0025] Figure 5 It is a cross-sectional schematic view of embodiment one of the electronic endoscope leak detection connecting component provided by the utility model;

[0026] Figure 6 It is a local enlarged view of guide slope in embodiment one of the electronic endoscope leak detection connecting component provided by the utility model;

[0027] Figure 7 It is a local enlarged view of guide slope in embodiment two of the electronic endoscope leak detection connecting component provided by the utility model;

[0028] Figure 8 Figure 3 is a partial enlarged view of the guide inclined surface of the third embodiment of the electronic endoscope leak detection connecting assembly provided by the present application.

[0029] The locking cover sleeve 1, the valve gland 2, the sealing ring 3, the guide inclined surface 4, the front end circumferential edge 41, the rear end circumferential edge 42, the leak detection valve body 5, the electronic endoscope cavity to be detected 6, the rotating cylinder 7, the valve core 8, the fixing pin 9, the transmission pin 10, the guide pin 11, and the L-shaped guide groove 12. DETAILED DESCRIPTION

[0030] The core of the present application is to provide an electronic endoscope leak detection connecting assembly, which replaces direct axial plug-in with rotation, and sets a guide inclined surface so that the edge of the valve gland does not touch the sealing ring, avoids damaging the sealing ring, prolongs the service life, and improves the sealing reliability. Another core of the present application is to provide an electronic endoscope overall sealing detection device comprising the electronic endoscope leak detection connecting assembly.

[0031] In order to enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Please refer to Figures 1 to 4 , Figure 1 Figure 1 is a cross-sectional schematic view of an embodiment of the electronic endoscope leak detection connecting assembly provided by the present application; Figure 2 Figure 1 is a cross-sectional schematic view of an embodiment of the electronic endoscope leak detection connecting assembly provided by the present application; Figure 3 Figure 1 is a cross-sectional schematic view of an embodiment of the electronic endoscope leak detection connecting assembly provided by the present application; Figure 4 Figure 1 is a cross-sectional schematic view of an embodiment of the electronic endoscope leak detection connecting assembly provided by the present application;

[0033] The utility model discloses a kind of electronic endoscope leak detection connection components, including coaxially arranged locking cover sleeve 1, valve gland 2 and leak detection valve body 5, locking cover sleeve 1 front end is provided with the pin for connecting leak detection meter, the front end of leak detection valve body 5 is inserted into valve gland 2, the rear end of leak detection valve body 5 is used to connect electronic endoscope cavity to be measured 6, wherein electronic endoscope cavity to be measured 6 is electronic endoscope mirror body light guide part base cavity, locking cover sleeve 1 is cylindrical structure, locking cover sleeve 1 front end is closed and is provided with pin, pin is provided with through hole connection inside locking cover sleeve 1, and locking cover sleeve 1 rear end is provided with opening, in drawing, left end is front end, right end is rear end, valve gland 2 is also cylindrical structure, and both ends are open, during installation, valve gland 2 is inserted into inside locking cover sleeve 1 from locking cover sleeve 1 rear end opening, make valve gland 2 outer wall and locking cover sleeve 1 inner wall contact. Meanwhile, locking cover sleeve 1 inner wall is provided with annular groove, annular groove is provided with sealing ring 3, valve gland 2 outer wall compacts sealing ring 3.

[0034] The front end of leak detection valve body 5 is provided with rotating cylinder 7 outside, the front end of leak detection valve body 5 is provided with valve core 8 inside, while leak detection valve body 5 front end is provided with rotating sliding slot in corresponding position, and is provided with a transmission pin 10, transmission pin 10 passes through rotating sliding slot, both ends of transmission pin 10 are connected with valve core 8 and rotating cylinder 7 respectively, and further provided with a fixed pin 9, both ends of fixed pin 9 are connected with rotating cylinder 7 and locking cover sleeve 1 respectively, by above-mentioned connection mode, locking cover sleeve 1, rotating cylinder 7 and valve core 8 can rotate synchronously.

[0035] When switching on and off state is needed, rotating locking cover sleeve 1, and then driving rotating cylinder 7 and valve core 8 to rotate, while valve core 8 rotates, the relative position with communication hole is changed, so that valve core 8 moves along axial direction to close or open communication hole, and communication hole is communicated with electronic endoscope cavity to be measured 6 and leak detection meter respectively, that is, the on or off of electronic endoscope cavity to be measured 6 and leak detection meter is realized by the position transformation of valve core 8, when on, leak detection work can be carried out. By rotating mode instead of direct axial plug, there is no sharp edge to scratch sealing ring, avoid damaging sealing ring, prolong service life, improve sealing reliability and safety, while simple structure, reduce processing difficulty.

[0036] Further, relative displacement will also be generated between locking cover sleeve 1 and valve gland 2 during rotation, in order to make relative displacement more smoothly, corresponding guide structure needs to be set, guide pin 11 is set in valve gland 2, and guide groove is set in corresponding position of locking cover sleeve 1, guide pin 11 is embedded in guide groove, when rotating locking cover sleeve 1 drives rotating cylinder 7 and valve core 8 to rotate synchronously, guide pin 11 will slide along guide groove, realize limiting during rotation.

[0037] In order to make the valve core 8 rotate while moving axially, the rotating sliding groove is a spiral groove, and the spiral structure can generate axial thrust while rotating, that is, the rotating cylinder 7 and the valve core 8 rotate while pushing the valve core 8 to move forward and backward, in an embodiment, the angle between the extension track of the spiral groove on the side wall of the leak detection valve body 5 and the corresponding radial section is uniformly arranged, that is, when the valve core 8 rotates at a uniform speed, the speed of axial displacement is also uniform. In another embodiment, the angle between the extension track of the spiral groove on the side wall of the leak detection valve body 5 and the corresponding radial section gradually increases and then gradually decreases, that is, when the valve core 8 rotates at a uniform speed, the speed of axial displacement gradually increases and then gradually decreases, and during the axial movement of the valve core 8, the movement speed near the starting point and the ending point is slow, preventing bumping, and the movement speed in the middle process is fast, improving the switching speed.

[0038] Further, the guide groove is an L-shaped guide groove 12, which realizes guiding and limiting during rotation, and the guide pin 11 slides in the circumferential part of the L-shaped guide groove 12 during normal rotation, and the guide pin 11 can also be clamped into the radial part of the L-shaped guide groove 12 and be clamped to be immobile, or other shapes of guide grooves can be used, such as S-shaped grooves or U-shaped grooves, that is, the guide pin can be clamped into the radial part at both ends and be clamped to be immobile at both ends.

[0039] In the electronic endoscope leak detection connecting assembly provided by the specific embodiment of the utility model, the communication hole is a stepped hole, the front end diameter of the stepped hole is larger than the rear end diameter, the valve core 8 is embedded into the front end of the stepped hole, and the rear end surface of the valve core 8 can tightly abut against the step surface of the closed stepped hole, and flat square notches are arranged on both sides of the valve core 8, the communication hole is closed by the mode that the rear end surface of the valve core 8 tightly abuts against the step surface of the stepped hole, the sealing effect is guaranteed, leakage is effectively avoided, further, the rear end surface of the valve core 8 is provided with a sealing gasket, and a pit can also be arranged at the center of the rear end surface of the sealing gasket, the step surface center of the stepped hole is provided with a surrounding edge surrounding the stepped hole, and when closed, the surrounding edge is embedded into the pit, and the sealing effect is further improved. The communication hole can also be a conical hole, the front end diameter of the conical hole is larger than the rear end diameter, a sealing ring is arranged on the outer periphery of the rear end of the valve core 8, and during the axial movement of the valve core 8, the sealing ring can contact or separate the inner wall of the conical hole, so as to realize the closing and opening of the communication hole.

[0040] The specific working process is as follows: the rear end of the leak detection valve body 5 is fixedly connected with the cavity 6 of the electronic endoscope to be detected, the leak detection valve body 5 and the valve gland 2 are fixed, the plug pin at the front end of the locking cover sleeve 1 is connected with the leak detection meter, in the initial state, the sealing gasket at the rear end of the valve core 8 closes the communication hole of the leak detection valve body 5, when detection is needed, the communication hole is opened, the rotating locking cover sleeve 1 is rotated, the fixed pin 9 and the transmission pin 10 drive the rotating cylinder 7 and the valve core 8 to rotate, since the rotating sliding groove is a spiral structure, the valve core 8 is axially moved forward relative to the leak detection valve body 5 during rotation, the sealing gasket at the rear end of the valve core 8 is away from the stepped surface of the communication hole of the leak detection valve body 5, and then the communication hole is opened, the gas flow can pass through the flat square notch on both sides of the valve core 8, after rotation, the gas flow channel is switched to the opened state, that is, the leak detection state, the leak detection meter is pressurized by air from the mirror body end, so that the sealing test is realized.

[0041] Please refer to Figures 5 to 8 , Figure 5 It is a cross-sectional view of the embodiment one of the electronic endoscope leak detection connecting assembly provided by the utility model. Figure 6 It is a local enlarged view of the guide inclined surface in the embodiment one of the electronic endoscope leak detection connecting assembly provided by the utility model. Figure 7 It is a local enlarged view of the guide inclined surface in the embodiment two of the electronic endoscope leak detection connecting assembly provided by the utility model. Figure 8 It is a local enlarged view of the guide inclined surface in the embodiment three of the electronic endoscope leak detection connecting assembly provided by the utility model.

[0042] The front end of the outer wall of the valve gland 2 is provided with a guide inclined surface 4, the front end circumferential edge 41 of the guide inclined surface 4 is located at the front end of the valve gland 2, the rear end circumferential edge 42 of the guide inclined surface 4 is located at the middle part of the valve gland 2, the valve gland 2 is divided into two parts, the front end is a guide section, and the rear end is a cylindrical section. The diameter of the front end circumferential edge 41 of the guide inclined surface 4 is smaller than the inner diameter of the sealing ring 3, the diameter of the rear end circumferential edge 42 of the guide inclined surface 4 is greater than the inner diameter of the sealing ring 3, after the valve gland 2 is installed in place, the front end circumferential edge 41 penetrates through the sealing ring 3, the sealing ring 3 is in contact with the guide inclined surface 4 and is extruded to form a radial seal, and the contact surface is located between the front end circumferential edge 41 and the rear end circumferential edge 42.

[0043] In the embodiment one, the guide slope 4 is specifically a conical surface with the diameter gradually increasing from the front end to the rear end, that is, the guide section is a circular truncated cone structure with the front end smaller than the rear end, and the guide section and the cylindrical section with the cylindrical structure form the valve gland 2. Since the diameter of the front end circumferential edge 41 of the guide slope 4 is smaller than the inner diameter of the sealing ring 3, during the process of inserting the valve gland 2 into the locking cover sleeve 1, the front end of the valve gland 2 directly passes through the sealing ring 3, and the front end circumferential edge 41 does not touch the sealing ring 3. With the continuous insertion, since the diameter of the rear end circumferential edge 42 of the guide slope 4 is larger than the inner diameter of the sealing ring 3, the guide slope 4 gradually increases, and the guide slope 4 contacts the sealing ring 3, thereby extruding the sealing ring 3 to form a radial seal. At the same time, due to the axial positioning of the sealing ring 3 and the length setting of the guide slope 4, after installation, the contact surface is located between the front end circumferential edge 41 and the rear end circumferential edge 42, that is, the rear end circumferential edge 42 also does not touch the sealing ring 3. During the repeated insertion and extraction of the valve gland 2, the sealing ring 3 only contacts the surface structure, and the two end edges do not touch the sealing ring 3, so that the sealing ring 3 is not scratched by the sharp edges, the sealing ring 3 is prevented from being damaged, the service life is prolonged, and the sealing reliability and safety are improved. At the same time, the structure is simple, the processing difficulty is reduced, and the like.

[0044] Preferably, the front end circumferential edge 41 is smoothly transitioned with the front end surface of the valve gland 2. Further, the rear end of the outer wall of the valve gland 2 is a cylindrical surface, the diameter of the cylindrical surface matches the inner diameter of the inner wall of the locking cover sleeve 1, and the diameter of the rear end circumferential edge 42 is smaller than or equal to the diameter of the cylindrical surface. At the same time, the rear end circumferential edge 42 is transitioned with the front end arc of the cylindrical surface, so that the transitions at all places are smoother.

[0045] In the embodiment one, the guide slope 4 is specifically a conical surface with the diameter gradually increasing from the front end to the rear end, that is, the guide section is a circular truncated cone structure with the front end smaller than the rear end, and the guide section and the cylindrical section with the cylindrical structure form the valve gland 2. Since the diameter of the front end circumferential edge 41 of the guide slope 4 is smaller than the inner diameter of the sealing ring 3, during the process of inserting the valve gland 2 into the locking cover sleeve 1, the front end of the valve gland 2 directly passes through the sealing ring 3, and the front end circumferential edge 41 does not touch the sealing ring 3. With the continuous insertion, since the diameter of the rear end circumferential edge 42 of the guide slope 4 is larger than the inner diameter of the sealing ring 3, the guide slope 4 gradually increases, and the guide slope 4 contacts the sealing ring 3, thereby extruding the sealing ring 3 to form a radial seal. At the same time, due to the axial positioning of the sealing ring 3 and the length setting of the guide slope 4, after installation, the contact surface is located between the front end circumferential edge 41 and the rear end circumferential edge 42, that is, the rear end circumferential edge 42 also does not touch the sealing ring 3. During the repeated insertion and extraction of the valve gland 2, the sealing ring 3 only contacts the surface structure, and the two end edges do not touch the sealing ring 3, so that the sealing ring 3 is not scratched by the sharp edges, the sealing ring 3 is prevented from being damaged, the service life is prolonged, and the sealing reliability and safety are improved. At the same time, the structure is simple, the processing difficulty is reduced, and the like.

[0046] Please refer to Figure 3 and Figure 4 , Figure 3 is a partial enlarged view of the guide slope in the second embodiment of the electronic endoscope leak detection connecting assembly provided by the utility model; Figure 4 is a partial enlarged view of the guide slope in the third embodiment of the electronic endoscope leak detection connecting assembly provided by the utility model.

[0047] In the embodiment two, the guide slope 4 is an outward convex arc surface, which increases the extrusion pressure on the sealing ring 3 and improves the sealing effect.

[0048] In the embodiment three, the guide slope 4 is specifically two taper surfaces arranged continuously, the diameters of the two taper surfaces are gradually increased from the front end to the rear end, and the angle between the front end taper surface and the axis is smaller than the angle between the rear end taper surface and the axis. That is, the cross-section structure is a concave broken line, which makes the installation more smooth and ensures the sealing contact effect.

[0049] In addition to the electronic endoscope leak detection connecting assembly described above, the specific embodiment of the utility model further provides an electronic endoscope overall sealing detection equipment including the electronic endoscope leak detection connecting assembly, and the structures of other parts of the electronic endoscope overall sealing detection equipment refer to the prior art, and will not be repeated here.

[0050] The electronic endoscope leak detection connecting assembly and the electronic endoscope overall sealing detection equipment provided by the utility model are introduced in detail above. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. An electronic endoscope leak test connection assembly comprising: The utility model provides a leak detection valve, which comprises a locking cover sleeve (1), a valve gland (2) and a leak detection valve body (5) arranged coaxially, the front end of the leak detection valve body (5) is inserted into the valve gland (2), the valve gland (2) is inserted into the locking cover sleeve (1) through the rear end opening of the locking cover sleeve (1), a sealing ring (3) is arranged on the inner wall of the locking cover sleeve (1), the outer wall of the valve gland (2) is in close contact with the sealing ring (3), a rotating cylinder (7) is arranged on the outer wall of the front end of the leak detection valve body (5), a valve core (8) is arranged in the inner wall of the front end of the leak detection valve body (5), the rotating cylinder (7) is connected to the locking cover sleeve (1) through a fixing pin (9), a rotating sliding groove is arranged on the front end of the leak detection valve body (5), a transmission pin (10) penetrating through the rotating sliding groove is connected to the valve core (8) and the rotating cylinder (7). The outer wall of the valve gland (2) is provided with a guide inclined surface (4), the diameter of the front end circumferential edge (41) of the guide inclined surface (4) is smaller than the inner diameter of the sealing ring (3), the diameter of the rear end circumferential edge (42) of the guide inclined surface (4) is larger than the inner diameter of the sealing ring (3), after the valve gland (2) is installed in place, the front end circumferential edge (41) penetrates through the sealing ring (3), the sealing ring (3) is in contact with the guide inclined surface (4) to form a radial seal, and the contact surface is located between the front end circumferential edge (41) and the rear end circumferential edge (42).

2. The electronic borescope leak detection connection assembly of claim 1, wherein, The valve gland (2) is provided with a guide pin (11), the locking cover sleeve (1) is provided with a guide groove at a corresponding position, the guide pin (11) is embedded in the guide groove, the locking cover sleeve (1) is rotated to drive the rotating cylinder (7) and the valve core (8) to rotate synchronously, and the guide pin (11) slides along the guide groove.

3. The electronic borescope leak test connection assembly of claim 2, wherein, The rotating sliding groove is a spiral groove, the guide groove is an L-shaped guide groove (12), and the rotating cylinder (7) and the valve core (8) rotate while pushing the valve core (8) to move forward and backward.

4. The electronic endoscope leak test connection assembly of claim 3, wherein, The leak detection valve body (5) is provided with a communication hole penetrating through the front and back, the valve core (8) is arranged at the front end in the communication hole, the communication hole is a stepped hole, the diameter of the front end of the stepped hole is larger than the diameter of the rear end, the valve core (8) is embedded in the front end of the stepped hole, and the rear end surface of the valve core (8) can tightly abut against the step surface of the stepped hole to close the stepped hole, and flat square notches are arranged on both sides of the valve core (8).

5. The electronic borescope leak test connection assembly of claim 4, wherein, The rear end surface of the valve core (8) is provided with a sealing gasket.

6. The electronic endoscope leak test connection assembly of any one of claims 1 to 5, wherein, The rear end of the outer wall of the valve gland (2) is a cylindrical surface, the diameter of the cylindrical surface matches the diameter of the inner wall of the locking cover sleeve (1), and the diameter of the rear end circumferential edge (42) is smaller than or equal to the diameter of the cylindrical surface.

7. The electronic borescope leak detection connection assembly of claim 6, wherein, The front end circumferential edge (41) and the front end surface of the valve gland (2) are smoothly connected, and the rear end circumferential edge (42) and the front end of the cylindrical surface are smoothly connected.

8. The electronic borescope leak detection connection assembly of claim 7, wherein, The guide inclined surface (4) is a conical surface or an outward convex arc-shaped surface, and the diameter gradually increases from the front end to the rear end.

9. The electronic borescope leak detection connection assembly of claim 7, wherein, The guiding slope (4) is specifically two continuous arranged conical surfaces, the diameters of the two conical surfaces are gradually increased from the front end to the rear end, and the included angle between the front end conical surface and the axis is smaller than the included angle between the rear end conical surface and the axis.

10. An electronic endoscope overall seal detection apparatus characterized by comprising: An electronic endoscope leak detection connection assembly as claimed in any one of claims 1 to 9.

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