CN220575740U

CN220575740U - Assembly fixture for end part of endoscope lens

Info

Publication number: CN220575740U
Application number: CN202322255033.8U
Authority: CN
Inventors: 黄义
Original assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Current assignee: Changzhou Lianying Zhirong Medical Technology Co ltd
Priority date: 2023-08-21
Filing date: 2023-08-21
Publication date: 2024-03-12
Anticipated expiration: 2033-08-21

Abstract

The utility model discloses an assembly fixture of an end part of an endoscope lens, which is used for assembling a head end cover onto a head end seat; the assembly fixture comprises a plurality of locking rods and a driving mechanism, wherein the locking rods are used for penetrating different reserved cavities shared by the head end cover and the head end seat, and positioning the head end cover and the head end seat so that the head end cover and the head end seat are coaxially arranged; the driving mechanism is connected with at least one locking rod and used for driving the head end cover to move towards the head end seat along the axial direction of the locking rod and assembled on the head end seat. Therefore, the assembly between the head end cover and the head end seat is convenient, the assembly difficulty is reduced, the assembly efficiency is improved, the assembly precision between the head end cover and the head end seat is ensured, and the consistency of the product of the end part of the endoscope lens is ensured after the assembly.

Description

Assembly fixture for end part of endoscope lens

Technical Field

The utility model belongs to the technical field related to medical instruments, and particularly relates to an assembly tool for the head end of an endoscope.

Background

Endoscopes, which are commonly used in clinical examinations of patients, can clearly image the natural lumen of the human body, and find out that the affected part is subjected to biopsy sampling or surgical treatment.

The head end of the endoscope insertion part is used as a tail end carrier for realizing the functions of the endoscope, and the assembly precision of the head end has obvious influence on the realization quality of the functions of optical imaging of the endoscope, instrument guiding, water vapor flushing and the like. Wherein, the head end of endoscope includes head end cover and head end seat, and the protruding camera lens and the illumination lens that are equipped with of one end towards the head end cover on the head end seat, and the one end that deviates from the head end cover on the head end seat is connected and is communicated with the pipeline. At present, the assembly between the upper head end cover and the head end seat at the end part of the endoscope head is mainly finished manually. However, because the head end cover and the head end seat have small parts, high precision and great assembly difficulty, the efficiency in manual assembly is low, the cost is high, and the consistency of the assembled head end part is difficult to ensure.

Disclosure of Invention

In view of the foregoing, it is desirable to provide an assembly fixture for an end portion of an endoscope lens for solving the above-mentioned problems.

An assembly fixture for an end part of an endoscope lens is used for assembling a head end cover onto a head end seat; the assembly fixture comprises:

the locking rods are used for penetrating different reserved channels shared by the head end cover and the head end seat, and positioning the head end cover and the head end seat so that the head end cover and the head end seat are coaxially arranged;

the driving mechanism is connected with at least one locking rod and used for driving the head end cover to move towards the head end seat along the axial direction of the locking rod and assembled on the head end seat.

It can be understood that the coaxiality between the head end cover and the head end seat is ensured by using a plurality of locking rods which penetrate through different reserved cavities shared by the head end cover and the head end seat, and then the head end cover is driven by the driving mechanism to move towards the head end seat along the axial direction of the locking rods, so that the assembly between the head end cover and the head end seat is convenient, the assembly difficulty is reduced, the assembly efficiency is improved, the assembly precision after the assembly between the head end cover and the head end seat is ensured, and the product consistency of the end part of the endoscope lens is ensured after the assembly.

In one embodiment, the assembly fixture further comprises a pressing gasket, the pressing gasket is used for being attached to the head end cover, and the pressing gasket can push the head end cover under the drive of the locking rod or the driving mechanism.

It can be appreciated that the pressing gasket is used for pushing the top end cover, so that the contact area between the assembly fixture and the head end cover when the top end cover is pushed can be increased, and the stability of the head end cover moving towards the head end seat is improved.

In one embodiment, the compaction pad is formed with an avoidance area for avoiding the imaging lens and the illumination lens on the head end seat.

In one embodiment, the number of the driving mechanisms is a plurality, and the driving mechanisms are in one-to-one correspondence with the locking rods.

In one embodiment, the locking rod is disposed through the preformed channel;

the driving mechanism is arranged on the part, extending out of the reserved cavity, of the locking rod and is used for driving the locking rod to push against the head end cover.

In one embodiment, the locking lever is provided with a limit head, which is located outside the head end cover, and the locking lever can push against the head end cover through the limit head.

In one embodiment, the driving mechanism comprises a first driving piece and a limiting piece, and the first driving piece is in threaded connection with the locking rod;

along the radial direction of the locking rod, the limiting piece is partially inserted into the part, extending out of the first driving piece, of the locking rod.

It will be appreciated that the drive of the locking lever in its axial direction is achieved by the screw thread arrangement between the first drive member and the locking lever, which facilitates the drive of the head end cover towards the head end seat.

In one embodiment, the driving mechanism further comprises a connecting screw sleeve, and the connecting screw sleeve is sleeved on the locking rod and is in screw connection with the first driving piece;

the connecting screw sleeve can push the limiting piece under the driving of the first driving piece.

In one embodiment, the locking rod extends into the preformed channel;

the locking rod is connected with and communicated with an air bag at one end positioned in the reserved cavity, the air bag can be inflated through the locking rod, and the inflated air bag is in butt joint limit with the cavity wall of the reserved cavity.

In one embodiment, the driving mechanism comprises a second driving piece, and the second driving piece is arranged on a part, located outside the head end cover, of the locking rod and is in threaded connection with the locking rod.

It can be appreciated that, utilize the screw thread cooperation structure between second driving piece and the locking lever, on the basis that the locking lever is spacing through gasbag and pipeline butt after the inflation, the head end lid of accessible screw the mode of second driving piece is pushed out and is moved towards the head end seat, so, can be convenient for order about the drive of head end lid towards head end seat removal.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the assembly fixture for the end part of the endoscope lens, disclosed by the utility model, ensures the coaxiality between the end cover and the head end seat by penetrating the plurality of locking rods of different reserved cavities shared by the end cover and the head end seat, and drives the end cover to move towards the head end seat along the axial direction of the locking rods by using the driving mechanism, so that the assembly between the end cover and the head end seat is facilitated, the assembly difficulty is reduced, the assembly efficiency is improved, the assembly precision between the end cover and the head end seat is ensured, and the product consistency of the end part of the endoscope lens is ensured after the assembly.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of an assembly tool according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of an assembly tool according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an assembly fixture according to an embodiment of the present disclosure when the assembly fixture is applied to assembly of a head end cover and a head end seat;

FIG. 4 is a schematic structural diagram of an assembly tool according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of an assembly fixture according to an embodiment of the present disclosure when the head end cover and the head end seat are assembled;

fig. 6 is a cross-sectional view of an assembly tool according to an embodiment of the present disclosure in a limited engagement with a pipe.

Reference numerals: 100. assembling a tool; 10. a locking lever; 11. a positioning head; 12. an air bag; 13. a plug; 20. a driving mechanism; 21. a first driving member; 22. a limiting piece; 23. connecting a screw sleeve; 24. a second driving member; 30. compressing the gasket; 31. an avoidance zone; 201. a head end cap; 202. a head end seat; 2021. an imaging lens; 2022. an illumination lens; 203. a pipeline; 2031. the inner wall of the tube.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The assembly fixture 100 of the endoscope head part claimed in the application is used for assembling the head end 201 onto the head end base 202.

As shown in fig. 1 to 3, fig. 5 and fig. 6, the assembly fixture 100 provided in an embodiment of the present application includes a plurality of locking rods 10 and a driving mechanism 20, wherein the plurality of locking rods 10 are used for penetrating different reserved channels (not shown) shared by the head end cover 201 and the head end seat 202, and positioning the head end cover 201 and the head end seat 202 so that the head end cover 201 and the head end seat 202 are coaxially disposed; the driving mechanism 20 is connected to at least one locking rod 10, and is used for driving the head cover 201 to move towards the head end base 202 along the axial direction of the locking rod 10, and is assembled to the head end base 202. It should be noted that, the above-mentioned head end cover 201 and the head end seat 202 are coaxially disposed, specifically, the coaxiality between the head end cover 201 and the head end seat 202 can satisfy the use requirement of assembling between the head end cover 201 and the head end seat 202 when the head end cover 201 moves toward the head end seat 202 along the axial direction of the locking rod 10.

It can be understood that, the coaxiality between the head end cover 201 and the head end seat 202 is ensured by using a plurality of locking rods 10 penetrating different reserved cavities shared by the head end cover 201 and the head end seat 202, and then the head end cover 201 can move on the locking rod 10 along the axial direction of the locking rod 10, so that the head end cover 201 can be driven to move towards the head end seat 202 along the axial direction of the locking rod 10 by using the driving mechanism 20, and the assembly between the head end cover 201 and the head end seat 202 is realized. In this way, not only is the assembly between the head end cover 201 and the head end base 202 facilitated, and the assembly difficulty is reduced and the assembly efficiency is improved, but also the assembly precision between the head end cover 201 and the head end base 202 after assembly is ensured, and the consistency of products of the end part of the endoscope lens after assembly is ensured.

It should be noted that, when different reserved channels shared by the head end cover 201 and the head end seat 202 are penetrated by the plurality of locking rods 10, positioning of positions of the head end cover 201 and the head end seat 202 on the plurality of locking rods 10 can be achieved, positioning between the head end cover 201 and the head end seat 202 can be achieved, and coaxiality between the head end cover 201 and the head end seat 202 can be ensured. Of course, the portion of the locking lever 10 located in the head end cap 201 is in clearance fit with the head end cap 201, and the portion of the locking lever 10 located in the head end seat 202 is in clearance fit with the head end seat 202.

As shown in fig. 1, 2, 4 and 6, the number of the locking rods 10 is two, wherein one locking rod 10 is arranged through a water vapor channel (not shown) formed by the head end cover 201 and the head end seat 202 together, and the other locking rod 10 is arranged through a clamp channel (not shown) formed by the head end cover 201 and the head end seat 202 together. It should be noted that the water vapor channel and the clamp channel are two reserved channels shared by the head end cover 201 and the head end base 202, and the assembly tool 100 of the embodiment fully utilizes the water vapor channel and the clamp channel shared by the head end cover 201 and the head end base 202 to realize the assembly of the head end cover 201 on the head end base 202.

In some application scenarios, after the head end cover 201 is assembled to the head end seat 202, the assembled endoscope head end portion communication assembly tool 100 can be moved into the heating cavity for heating so that the glue between the head end cover 201 and the head end seat 202 is solidified, and the two locking rods 10 are respectively inserted into the water vapor channel and the clamp channel, so that the glue between the head end cover 201 and the head end seat 202 can be prevented from entering the water vapor channel and the clamp channel, and further the quality of the endoscope head end portion product obtained after the assembly tool 100 is assembled can be further improved.

As shown in fig. 3 and 5, in some embodiments, the assembly fixture 100 of the present embodiment further includes a pressing gasket 30, where the pressing gasket 30 is used to attach the head end cover 201, and the pressing gasket 30 can push the head end cover 201 under the driving of the locking rod 10 or the driving mechanism 20; in this way, the contact area between the assembly fixture 100 and the head end cover 201 when the head end cover 201 is pushed can be increased, so that the movement stability of the head end cover 201 moving towards the head end seat 202 can be improved. Of course, in other embodiments, the locking rod 10 or the driving mechanism 20 may be used to directly push the plug end cap 201 toward the head end seat 202, which is not described herein.

In some embodiments, the locking rod 10 is disposed through the pressing gasket 30, so that the locking rod 10 or the driving mechanism 20 can push the head end cover 201 toward the head end seat 202 along the axial direction of the locking rod 10 through the pressing gasket 30, and at the same time, the pressing gasket 30 can cover and seal a reserved cavity where the head end cover 201 is assembled with the head end seat 202, so as to ensure that the head end cover 201 is heated after being assembled with the head end seat 202, and glue between the head end cover 201 and the head end seat 202 cannot be in the reserved cavity. It is of course obvious to a person skilled in the art that the locking bar 10 may not pass through the compression washer 30, and for this purpose, the locking bar 10 may be bent towards the compression washer 30, and the bending part of the locking bar 10 is used to push the compression washer 30 against the head end cover 201.

In some embodiments, the avoidance area 31 is formed on the compression pad 30 to avoid the imaging lens 2021 and the illumination lens 2022 on the head end seat 202, so that position interference between the imaging lens 2021 and the illumination lens 2022 on the head end seat 202 of the compression pad 30 can be avoided, and the area of the compression pad 30 can be set as large as possible, which has the effect of further improving the contact area between the compression pad 30 and the head end cover 201.

As shown in fig. 3 and 5, in some embodiments, the number of driving mechanisms 20 is plural, and plural driving mechanisms 20 are disposed in one-to-one correspondence with plural locking rods 10, so that there may be plural points of action to drive the head cover 201 to move toward the head end seat 202 along the axial direction of the locking rod 10. Of course, it is also possible for a person skilled in the art to have only one drive mechanism 20.

As shown in fig. 3, in some embodiments, the locking bar 10 is disposed through the preformed channel; the driving mechanism 20 is installed on the part of the locking rod 10 extending out of the reserved cavity, and is used for driving the locking rod 10 to push the top end cover 201. That is, when the assembly fixture 100 of this embodiment works, the driving mechanism 20 can drive the locking rod 10 to move along the axial direction of the locking rod 10, and push the head end cover 201 toward the head end seat 202. It should be noted that, the locking rod 10 is disposed through the reserved cavity, so when the head end seat 202 is connected to and communicated with the pipeline 203, the head end cover 201, the head end seat 202 and the pipeline 203 can jointly form the reserved cavity, and at this time, the driving mechanism 20 is connected to the part of the locking rod 10 extending out of the pipeline 203; when the head end seat 202 is not connected to and in communication with the pipeline, the driving mechanism is connected to the part of the locking rod 10 extending out of the head end seat 202.

As shown in fig. 1 to 3, the lock lever 10 of this embodiment is provided with the stopper head 11, the stopper head 11 is located outside the head end cover 201, and the lock lever 10 can push the head end cover 201 by the stopper head 11, for example, the lock lever 10 can push the pressing washer 30 with the stopper head 11 to drive the head end cover 201 to move toward the head end seat 202 in the axial direction of the lock lever 10. It should be noted that, the above-mentioned spacing head 11 may be configured as an integral structure with the locking rod 10, or may be configured as a split structure between the spacing head 11 and the locking rod 10, and specifically, the spacing head 11 may be mounted on the locking rod 10 by means of threads, welding, fastening, or the like.

As shown in fig. 1 to 3, the driving mechanism 20 of the embodiment includes a first driving member 21 and a limiting member 22, where the first driving member 21 is screwed to the locking rod 10; the limiting member 22 is partially inserted into the portion of the locking lever 10 extending from the first driving member 21 along the radial direction of the locking lever 10. That is, the assembly fixture 100 of this embodiment can utilize the threaded structure between the first driving member 21 and the locking rod 10 to realize driving of the locking rod 10 moving along the axial direction thereof, so that driving of the head end cover 201 to move toward the head end seat 202 can be facilitated.

As shown in fig. 1 to 3, the driving mechanism 20 of this embodiment further includes a connecting screw sleeve 23, where the connecting screw sleeve 23 is sleeved on the locking rod 10 and screwed with the first driving member 21; the connecting screw sleeve 23 can push the limiting piece 22 under the driving of the first driving piece. That is, the stopper 22 can restrict the axial movement of the connecting screw sleeve 23 on the lock lever 10 and realize the urging of the movement of the lock lever 10 in the axial direction thereof. The connecting screw sleeve 23 is in clearance fit with the locking lever 10. Of course, it is also possible for a person skilled in the art to screw the first driving member 21 directly to the locking lever 10, and the abutment between the first driving member 21 and the limiting member 22 is used to drive the locking lever 10 to move along the axial direction thereof.

As shown in fig. 4-6, in some embodiments, the locking bar 10 protrudes into the preformed channel; wherein, the one end that is located the reservation intracavity on the locking lever 10 is connected and is linked together with gasbag 12, and gasbag 12 can be inflated through locking lever 10, and the gasbag 12 that inflates after inflating can be spacing with the chamber way wall butt of reservation intracavity, so, can realize wearing to establish the locking between locking lever 10 and the pipeline 203 of head end 201 and head end seat 202. Of course, when the pipe 203 is connected to and communicated with the head end seat 202, the locking rod 10 may specifically extend into the pipe 203, and specifically, the locking of the locking rod 10 is achieved by the abutment between the inflated airbag 12 and the pipe inner wall 2031 of the pipe 203. It should be noted that, the locking rod 10 extends into the reserved cavity, so when the head end base 202 is connected to and communicated with the pipeline 203, the head end cover 201, the head end base 202 and the pipeline 203 may jointly form the reserved cavity, and at this time, the wall of the cavity where the air bag 12 abuts against and is limited may be the inner wall 2031 of the pipeline 203, or the wall of the cavity where the air bag 12 abuts against and is limited may also be the inner wall of the head end base 202; when the head end seat 202 is not connected to and communicates with the pipeline, the wall of the chamber where the air bag 12 abuts the limit is the inner wall of the head end seat 202.

As shown in fig. 6, the locking rod 10 of this embodiment is further detachably provided with a plug 13 at an end extending out of the head end 201, so as to plug the locking rod 10, so that the locking rod 10 can be separated from an inflation mechanism (not shown), and the assembly limit of the locking rod 10 on the pipeline 203 is maintained.

As shown in fig. 4 to 6, the driving mechanism 20 of this embodiment includes a second driving member 24, and the second driving member 24 is provided on the lock lever 10 at a position outside the head cover 201 and is screwed with the lock lever 10. By means of the threaded matching structure between the second driving piece 24 and the locking rod 10, on the basis that the locking rod 10 is limited by abutting the inflated air bag 12 with the pipeline 203, the head end cover 201 can be pushed to move towards the head end seat 202 by screwing the second driving piece 24, and driving of driving the head end cover 201 to move towards the head end seat 202 can be facilitated.

In summary, when the assembly fixture 100 for an endoscope lens end portion of the present utility model works, a plurality of locking rods 10 are inserted into the head end cover 201 and the head end seat 202 by using a reserved cavity shared by the head end cover 201 and the head end seat 202, and the plurality of locking rods 10 penetrating the head end cover 201 and the head end seat 202 are positioned, so that coaxiality between the head end cover 201 and the head end seat 202 can be ensured, damage to the camera lens 2021 and the illumination lens 2022 on the head end seat 202 in the process of moving the head end cover 201 towards the head end seat 202 is prevented, and finally, the head end cover 201 is driven to move towards the head end seat 202 along the axial direction of the locking rods 10 by using the driving mechanism 20, and assembly of the head end seat 202 on the head end seat 202 is realized.

The technical features of the above embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.

Claims

1. An assembly fixture for an end part of an endoscope lens is used for assembling a head end cover (201) onto a head end seat (202); the assembly fixture (100) is characterized by comprising:

the locking rods (10) are used for penetrating different reserved channels shared by the head end cover (201) and the head end base (202), and positioning the head end cover (201) and the head end base (202) so that the head end cover (201) and the head end base (202) are coaxially arranged;

and the driving mechanism (20) is connected with at least one locking rod (10) and is used for driving the head end cover (201) to move towards the head end seat (202) along the axial direction of the locking rod (10) and is assembled on the head end seat (202).

2. The tool for assembling an end portion of an endoscope lens according to claim 1, wherein the tool for assembling (100) further comprises a pressing gasket (30), the pressing gasket (30) is used for being attached to the end cover (201), and the pressing gasket (30) can push against the end cover (201) under the drive of the locking rod (10) or the driving mechanism (20).

3. The tool for assembling an end portion of an endoscope lens according to claim 2, wherein an avoidance area (31) is formed on the compression pad (30) and is used for avoiding the imaging lens (2021) and the illumination lens (2022) on the head end base (202).

4. The tool for assembling an end portion of an endoscope lens according to claim 1, wherein the number of the driving mechanisms (20) is plural, and the driving mechanisms (20) are in one-to-one correspondence with the locking rods (10).

5. The tool for assembling an end of an endoscope lens according to claim 1, characterized in that said locking rod (10) is arranged through said preformed channel;

the driving mechanism (20) is arranged at the part of the locking rod (10) extending out of the reserved cavity and is used for driving the locking rod (10) to push against the head end cover (201).

6. The tool for assembling an end portion of an endoscope lens according to claim 5, wherein the locking rod (10) is provided with a limit head (11), the limit head (11) is located outside the head end cover (201), and the locking rod (10) can push against the head end cover (201) through the limit head (11).

7. The tool for assembling an end of an endoscope lens according to claim 5, wherein the driving mechanism (20) comprises a first driving piece (21) and a limiting piece (22), and the first driving piece (21) is in threaded connection with the locking rod (10);

along the radial direction of the locking rod (10), the limiting piece (22) is partially inserted into the part, extending out of the first driving piece (21), of the locking rod (10).

8. The tool for assembling an end of an endoscope lens according to claim 7, wherein the driving mechanism (20) further comprises a connecting screw sleeve (23), and the connecting screw sleeve (23) is sleeved on the locking rod (10) and is in screw connection with the first driving piece (21);

the connecting screw sleeve (23) can push the limiting piece (22) under the driving of the first driving piece (21).

9. The tool for assembling an end of an endoscope head according to claim 1, characterized in that said locking rod (10) extends into said preformed channel;

the locking rod (10) is connected with and communicated with an air bag (12) at one end positioned in the reserved cavity, the air bag (12) can be inflated through the locking rod (10), and the inflated air bag (12) is in butt joint limit with the cavity wall of the reserved cavity.

10. The tool for assembling an end portion of an endoscope lens according to claim 9, wherein the driving mechanism (20) comprises a second driving member (24), and the second driving member (24) is disposed on a portion of the locking rod (10) located outside the end cover (201) and is screwed with the locking rod (10).