CN219374587U - Housing assembly and endoscope - Google Patents

Abstract

The utility model discloses a housing assembly and an endoscope. The housing assembly includes a first housing and a second housing. The first housing includes a first main body portion and a first support portion. The first end of the first support portion in the extending direction is connected to the first main body portion. The second housing includes a second body portion, a second support portion, and an extension portion. The first end of the second support portion in the extending direction is connected to the second main body portion. The extension part is arranged on the second supporting part and protrudes out of the second end of the extension direction of the second supporting part. The second body part is covered on the first body part. The second end of the extending direction of the first supporting part is abutted with the second end of the extending direction of the second supporting part, and the extending part is abutted against the side wall of the first supporting part. The housing assembly can be used for an endoscope, and the first support part can be used for installing the guide wheel of the endoscope, so that the stability of the installation of the guide wheel is improved, and further, the traction wheel is prevented from easily loosening and falling off.

Description

Housing assembly and endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a shell assembly and an endoscope.

Background

An endoscope is a commonly used medical instrument, is an inspection instrument capable of directly entering a natural pipeline of a human body, and can provide sufficient diagnostic information for doctors to treat diseases. The endoscope includes an insertion portion and an operation portion. The proximal end of the insertion part is connected with the operation part, and the direction of the distal end of the insertion part can be regulated and controlled by the operation part, so that the insertion part can enter the body through the human body cavity or the operation incision.

In the related art, the operating portion includes a housing and a traction wheel. The traction wheel is arranged in the shell. The traction rope is arranged in the insertion part, the proximal end of the traction rope is connected with the traction wheel, and the distal end of the traction rope is connected with the distal end of the insertion part, so that the length of the traction rope wound on the traction wheel is adjusted by rotating the traction wheel, and the distal end of the insertion part is driven to deflect. However, the endoscope in the related art is easy to loose or drop the traction wheel during use, so that the steering angle of the front end of the insertion part is smaller, and even the steering function is lost.

Disclosure of Invention

The utility model discloses a shell assembly and an endoscope, which are used for solving the problem that a traction wheel in the related art is easy to loosen and fall off.

In order to solve the problems, the utility model adopts the following technical scheme:

in one aspect, the present application provides a housing assembly. The housing assembly may be used with an endoscope. Specifically, the housing assembly includes a first housing and a second housing. The first housing includes a first main body portion and a first support portion. The first end of the first support portion in the extending direction is connected to the first main body portion. The second housing includes a second body portion, a second support portion, and an extension portion. The first end of the second support portion in the extending direction is connected to the second main body portion. The extension part is arranged on the second supporting part and protrudes out of the second end of the extension direction of the second supporting part. The second body part is covered on the first body part. The second end of the extending direction of the first supporting part is abutted with the second end of the extending direction of the second supporting part, and the extending part is abutted against the side wall of the first supporting part.

The technical scheme adopted by the utility model can achieve the following beneficial effects:

in the above-mentioned provided housing assembly, the extension portion is abutted against the side wall of the first supporting portion, so as to provide support for the second end of the extension direction of the first supporting portion, so as to improve the strength of the first supporting portion, and further be beneficial to preventing the first supporting portion from deflection deformation. In the case of the housing assembly for an endoscope, the first support portion may be utilized to provide support for the traction wheel, thereby helping to prevent the traction wheel from loosening and falling off.

According to some alternative embodiments, the extension includes a support section and a guide section. The support section is supported on the side wall of the first support part. The first end of the extending direction of the support section is connected with the second support part. The second end of the support section in the extending direction is connected to the guide section. The guide section has a guide surface. The guide surface is inclined in a direction away from the first support portion along an end of the guide section near the support section toward an end of the guide section away from the support section.

According to some alternative embodiments, the second end of the first support portion in the extending direction has a first mounting groove. The first mounting groove includes a groove bottom section. The groove bottom section is an arc concave surface. The distance between the center of the arc-shaped concave surface and the end face of the second end of the extending direction of the first supporting part is a first distance. The distance between the second end of the extending direction of the support section and the end face of the second end of the extending direction of the first support section is a second distance. The second distance is greater than or equal to the first distance.

According to some alternative embodiments, the first mounting groove further comprises a notch section. The notch section is communicated with the groove bottom section. The second end of the second support portion in the extending direction includes a protruding portion. At least part of the boss is located in the slot segment. And a first mounting hole is formed between the protruding part and the bottom of the first mounting groove.

According to some alternative embodiments, the two side walls of the protruding portion in the groove width direction of the first mounting groove are respectively abutted against the inner wall of the first mounting groove.

According to some alternative embodiments, the side of the boss opposite the groove bottom section has a second mounting groove. The second mounting groove is an arc-shaped groove, and the circle center of the arc-shaped groove coincides with the circle center of the arc-shaped concave surface.

According to some alternative embodiments, an endoscope includes a traction wheel and a traction cable. The traction wheel is connected with the first supporting part in a rotating fit way. The hauling rope is located the first side of traction wheel, and hauling rope links to each other with the traction wheel. The extension portion is abutted against a side wall of the first supporting portion adjacent to the first side of the traction wheel.

According to some alternative embodiments, the first housing further comprises a reinforcement portion and two first support portions. The reinforcement portion is disposed on the first body portion. The two first supporting parts are arranged at intervals along the axial direction of the traction wheel. One side wall of the two first supporting parts is propped against the extending part, and the other side wall is connected with the reinforcing part. The second shell comprises two second supporting parts, and one second supporting part is correspondingly connected with one first supporting part.

According to some alternative embodiments, the first housing has a second mounting hole. The second mounting hole penetrates the reinforcement portion and the first body portion, and the second mounting hole communicates with an inner space of the first housing and an outer space of the first housing. The endoscope further includes a channel tube penetrating the second mounting hole, and the channel tube is connected to the reinforcement portion.

In another aspect, the present application provides an endoscope. The endoscope has the same technical characteristics as the shell assembly provided by the application, and can achieve the same technical effects, and the technical effects are not repeated here.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a housing assembly provided in some alternative embodiments of the present application;

FIG. 2 is a schematic illustration of a second housing provided in some alternative embodiments of the present application;

FIG. 3 is a cross-sectional view of a second housing provided in some alternative embodiments of the present application;

FIG. 4 is a schematic view of a first housing provided in some alternative embodiments of the present application;

FIG. 5 is a cross-sectional view of a first housing provided in some alternative embodiments of the present application;

FIG. 6 is a schematic illustration of the assembly of a first housing and a second housing provided in some alternative embodiments of the present application;

FIG. 7 is a cross-sectional view of an endoscope provided in some alternative embodiments of the present application;

FIG. 8 is a schematic view of an endoscope in which a traction wheel, a first support, and a second support are assembled, as provided by some alternative embodiments of the present application;

FIG. 9 is a second cross-sectional view of an endoscope provided in some alternative embodiments of the present application;

fig. 10 is a schematic view of an endoscope provided in accordance with some alternative embodiments of the present application.

Reference numerals illustrate: 100-a first housing; 110-a first body portion; 111-a first accommodation groove; 120-a first support; 121-a first mounting groove; 1211-groove bottom section; 1212-slot segments; 130-reinforcement; 140-reinforcing ribs; 101-a first mounting hole; 102-a second mounting hole; 200-a second housing; 210-a second body portion; 211-a second accommodation groove; 220-a second support; 221-a boss; 2211-a second mounting groove; 230-extensions; 231-a support section; 232-a guide section; 2321-guiding surfaces; 240-a snap; 300-traction wheel; 400-hauling rope; 500-channel tube; 600-operating lever.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the various embodiments of the present application, "proximal" and "distal" refer to the endoscope and its accessories in the environment of use, relative to the user's proximal-distal position, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

In the related art, a housing of an endoscope includes an upper housing and a lower housing. The upper shell is covered on the lower shell. And mounting columns are arranged in the upper shell and the lower shell. Under the condition that the upper shell and the lower shell are covered, the mounting column arranged on the upper shell is in butt joint with the mounting column arranged on the lower shell. In order to facilitate the installation, a mounting groove for accommodating the rotating shaft of the traction wheel is formed in the mounting column of the lower shell. Under the condition that the upper shell is covered on the lower shell, the mounting column arranged on the upper shell seals the notch of the mounting groove so as to prevent the traction wheel rotating shaft from sliding off the notch of the mounting groove. However, after the traction wheel receives the pulling force of the traction rope, the traction wheel mainly depends on the mounting column arranged on the lower shell to provide support. Therefore, the moment applied to the mounting column arranged on the lower shell is large, deformation is easy to occur, and the traction wheel is loosened and falls off.

In view of the above technical problems, the present application provides a housing assembly and an endoscope. The housing assembly includes a first housing and a second housing. The first housing includes a first support portion. The second housing includes a second support portion and an extension portion. After the second housing is assembled to the first housing, the first support portion and the second support portion are butted. And the extension part is supported on the side wall of the first supporting part, so that the second supporting part can provide support for the first supporting part, both ends of the second supporting part can be supported, and the strength of the first supporting part is improved. Therefore, the shell assembly is beneficial to solving the problem that the traction wheel is easy to loosen and fall off.

The housing assembly and the endoscope provided in the embodiments of the present application will be described in detail below with reference to fig. 1 to 10 by way of specific embodiments and application scenarios thereof.

In a first aspect, the present application provides a housing assembly. The housing assembly may be used for an endoscope, for example. According to some alternative embodiments, the housing assembly may be used as a housing for an operative portion in an endoscope to provide a mounting base for other components in the endoscope. Illustratively, where the housing assembly is used with an endoscope, a traction wheel in the endoscope is disposed within the housing assembly.

Referring to fig. 1, according to some alternative embodiments, the housing assembly includes a first housing 100 and a second housing 200. The first housing 100 includes a first body portion 110 and a first support portion 120. The first end of the first support portion 120 in the extending direction is connected to the first body portion 110.

Referring to fig. 4 and 5, the first body portion 110 is a basic structural member. In some alternative embodiments, the first body portion 110 has a first receiving groove 111. The first receiving groove 111 may be used to mount other components. Illustratively, where the housing assembly is used with an endoscope, the first receiving groove 111 may be used for, but is not limited to, mounting circuit boards, traction wheels, channel tubes, and the like. Alternatively, the first support 120 is located in the first receiving groove 111 such that the first support 120 may provide a mounting base for components mounted in the first receiving groove 111. In an alternative embodiment, the first support 120 may provide a mounting base for the traction wheel of the endoscope.

Referring to fig. 2 and 3, the second housing 200 includes a second body portion 210, a second supporting portion 220, and an extending portion 230. The first end of the second support portion 220 in the extending direction is connected to the second body portion 210. The extension portion 230 is disposed on the second supporting portion 220, and the extension portion 230 protrudes from a second end of the second supporting portion 220 in the extending direction.

Referring to fig. 2 and 3, the second housing 200 is a basic structural member. In some alternative embodiments, the second body portion 210 has a second receiving groove 211. The second receiving groove 211 provides an installation space for installing other components. Optionally, the second supporting portion 220 is located in the second accommodating groove 211, so that the second supporting portion 220 may provide support for components located in the second accommodating groove 211.

Referring to fig. 1, the second body 210 is covered with the first body 110. The second end of the first support portion 120 in the extending direction and the second end of the second support portion 220 in the extending direction are abutted, and the extending portion 230 abuts against the sidewall of the first support portion 120. Illustratively, when the second body portion 210 is covered on the first body portion 110, a receiving chamber for mounting components is formed between the first body portion 110 and the second body portion 210.

In the above embodiment, the first supporting portion 120 is abutted with the second supporting portion 220, so that the second supporting portion 220 can provide support for the second end of the extending direction of the first supporting portion 120. The extension portion 230 abuts against the side wall of the first supporting portion 120, so that the extension portion 230 can provide a supporting force perpendicular to the extending direction of the first supporting portion 120 for the first supporting portion 120, thereby being beneficial to improving the strength of the first supporting portion 120. Thus, the housing assembly is beneficial for improving the stability of the components mounted on the first support 120.

In some alternative embodiments, the extension 230 may be disposed on the more stressed side of the first support 120 as desired. Illustratively, as shown in fig. 7, in the case where the housing assembly is used as a housing of an endoscope, the first support 120 is used to mount a traction wheel 300 of the endoscope. Traction sheave 300 is subjected to a greater pulling force of traction rope 400. The first supporting portion 120 is easily bent and deformed to a side close to the traction rope 400. In some preferred embodiments, the extension 230 is disposed on a side of the first support 120 facing the traction rope 400.

In some alternative embodiments, the number of extensions 230 in the second housing 200 may be multiple. For example, the plurality of extension parts 230 may be disposed at different sides of the first support part 120 such that the plurality of extension parts 230 may provide support for a plurality of directions of the first support part 120. For example, the extension part 230 may be disposed at one or more sides of the first supporting part 120 where the force is greater according to the force receiving direction of the first supporting part 120.

In some alternative embodiments, as shown in fig. 1, the extension 230 includes a support section 231 and a guide section 232. The support section 231 is supported to a sidewall of the first support part 120 to provide support for the first support part 120 through the support section 231. Illustratively, the support segment 231 extends along the extending direction of the first support 120. Optionally, the supporting section 231 is snugly supported on the sidewall of the first supporting portion 120. The first end of the support section 231 in the extending direction is connected to the second support part 220. The second end of the support section 231 in the extending direction is connected to the guide section 232. Guide section 232 has a guide surface 2321. The guide surface 2321 is inclined in a direction away from the first support 120 along an end of the guide section 232 near the support section 231 toward an end of the guide section 232 away from the support section 231.

Referring to fig. 6 and 7, during the installation, one end of the second housing 200 may be aligned with and snapped into one end of the first housing 100. And then the other end of the second housing 200 is fastened with the first housing 100. As shown in fig. 6, the guide section 232 is beneficial for snapping and stopping the extension 230 against the sidewall of the first support 120.

In some alternative embodiments, referring to fig. 1 and 6, the first end of the second housing 200 in the extending direction is provided with a catching part 240. Illustratively, the catch 240 is located on a side of the extension 230 proximate to the first support 120. Illustratively, the latch 240 is disposed at an end of the second housing 200 on a side of the extension 230 near the first support 120.

In some alternative embodiments, when the second housing 200 covers the first housing 100, the fastening portion 240 is fastened to the first housing 100 and/or a component disposed on the first housing 100. As an alternative embodiment, during the process of assembling the first housing 100 and the second housing 200, the fastening portion 240 may be fastened to the first housing 100, so as to provide positioning support for the second housing 200 to rotate relative to the first housing 100 through the fastening portion 240, thereby being beneficial to reducing difficulty in aligning and installing the second housing 200 and the first housing 100.

Referring to fig. 1, 4 and 5, according to some alternative embodiments, the second end of the first support 120 in the extending direction has a first mounting groove 121. In alternative embodiments, the first mounting slot 121 may be used to mount a component.

Referring to fig. 7 and 8, in the case where the housing assembly is used for an endoscope, the first mounting groove 121 may be used to mount the rotation shaft of the traction wheel 300. Specifically, the rotation shaft of the traction wheel 300 and the inner wall of the first mounting groove 121 form a revolute pair, so that the traction wheel 300 can rotate relative to the first housing 100.

In some alternative embodiments, the width of the groove wall of the side of the first mounting groove 121 adjacent to the extension 230 is the first width. The width of the groove wall of the side of the first mounting groove 121 away from the extension 230 is the second width. The first width is greater than the second width. This can increase the strength of the groove wall of the side of the first mounting groove 121 adjacent to the extension 230 in the case where the size of the first support 120 is fixed.

In some alternative embodiments, as shown in fig. 5 and 8, the first mounting groove 121 includes a groove bottom segment 1211. The trough bottom segment 1211 is a curved concave surface. Referring to fig. 8, a distance between a center of the arc-shaped concave surface and an end surface of the second end of the extending direction of the first supporting portion 120 is a first distance. The distance between the second end of the support section 231 in the extending direction and the end face of the second end of the first support 120 in the extending direction is a second distance.

The second distance is greater than or equal to the first distance. Illustratively, the first mounting groove 121 may be used to mount a spindle. The second distance is greater than or equal to the first distance, so that the supporting force, provided by the supporting section 231 for the first supporting portion 120, perpendicular to the extending direction of the first supporting portion 120 can pass through the center of the arc-shaped concave surface, and further is beneficial to transmitting the radial acting force received by the rotating shaft to the extending portion 230, so as to provide support for the first supporting portion 120, and improve the bearing capacity of the first supporting portion 120.

In some alternative embodiments, as shown in fig. 1, the first mounting slot 121 further includes a slot segment 1212. The slot segment 1212 communicates with the slot base segment 1211. The second end of the second support part 220 in the extending direction includes a boss 221. At least a portion of the boss 221 is located in the slot segment 1212, and a first mounting hole 101 is formed between the boss 221 and the bottom of the first mounting slot 121.

In the above embodiment, at least part of the protruding portion 221 is located in the slot segment 1212, so that the inner side of the slot wall of the first mounting slot 121 can at least partially abut against the protruding portion 221, which is beneficial to improving the connection strength of the abutting portion of the first supporting portion 120 and the second supporting portion 220, and improving the stability of the components mounted on the first supporting portion 120.

In some alternative embodiments, as shown in fig. 1, both side walls of the boss 221 in the groove width direction of the first mounting groove 121 are respectively stopped against the inner wall of the first mounting groove 121. Illustratively, the width of the gap between the boss 221 and the extension 230 is equal to the width of the groove wall of the first mounting groove 121 on the side adjacent to the extension 230. This is beneficial for improving the compactness and stability of the assembly of the first support 120 and the second support 220.

In some alternative embodiments, the side of the boss 221 opposite the groove bottom segment 1211 has a second mounting groove 2211. The second mounting groove 2211 is an arc-shaped groove so that the second mounting groove 2211 is in rotating fit with the rotating shaft in the first mounting groove 121. Illustratively, the radius of the second mounting groove 2211 is substantially equal to the radius of the bottom of the first mounting groove 121. In some alternative embodiments, the center of the arc-shaped recess coincides with the center of the arc-shaped concave surface, so as to prevent the rotation shaft in the first mounting groove 121 from picking, which is beneficial to improving the stability of assembling the rotation shaft with the first supporting portion 120 and the second supporting portion 220.

In the above embodiment, the protruding portion 221 is provided with the second mounting groove 2211, so that a low rotation pair is formed between the rotating shaft in the first mounting groove 121 and the protruding portion 221, and the reliability of the rotating fit structure between the rotating shaft and the first supporting portion 120 and the second supporting portion 220 is improved. In addition, the boss 221 is provided with a second mounting groove 2211 such that the rotation shaft in the first mounting groove 121 may be at least partially caught in the second mounting groove 2211. Therefore, the protrusion 221 can provide a supporting force perpendicular to the extending direction of the first supporting portion 120 for the rotating shaft in the first mounting groove 121, thereby being beneficial to reducing the stress of the first supporting portion 120 and preventing the deformation of the first supporting portion 120.

In some alternative embodiments, referring to fig. 7, an endoscope includes a traction wheel 300 and a traction cable 400. Traction wheel 300 is rotatably coupled to first support 120. The traction rope 400 is located at a first side of the traction wheel 300, and the traction rope 400 is connected with the traction wheel 300. Extension 230 abuts a sidewall of first support 120 adjacent to a first side of traction wheel 300. In this way, the first supporting portion 120 can transfer the acting force applied by the first supporting portion 120 perpendicular to the extending direction of the first supporting portion 120 to the extending portion 230, so as to disperse part of the acting force through the extending portion 230, thereby being beneficial to preventing the first supporting portion 120 from deforming and improving the stability of the traction wheel 300 mounted on the first supporting portion 120. Thus, in the case where the housing assembly is used for an endoscope, the housing assembly is useful for solving the problem that the traction wheel is easily detached.

In some alternative implementations, the first housing 100 includes two first supporting portions 120 disposed at intervals to be supported at both ends of the rotation shaft of the traction wheel 300 by the two first supporting portions 120. Further alternatively, the second housing 200 includes two second supporting portions 220 disposed at intervals. Illustratively, one second support 220 corresponds to one first support 120. In a state where the second housing 200 is assembled to the first housing 100, the second support 220 is abutted with the corresponding first support 120. In this way, the first and second cases 100 and 200 can provide support with both ends of the rotation shaft of the traction wheel 300, respectively, thereby being beneficial to improving the stability of the installation of the traction wheel 300.

In some alternative embodiments, second housing 200 includes a plurality of extensions 230. In some alternative embodiments, the first housing 100 includes two or more first support portions 120. Each first support 120 corresponds to one extension 230, so that each first support 120 may provide support through at least one extension 230, which is beneficial for improving the strength of each first support 120.

In some alternative embodiments, the first housing 100 further includes a reinforcement 130 and two first support portions 120. The reinforcement portion 130 is provided to the first body portion 110. The two first supporting portions 120 are disposed at intervals along the axial direction of the traction wheel 300. One of the two first supporting portions 120 is abutted against the extending portion 230, and the other is connected to the reinforcing portion 130. The second housing 200 includes two second supporting portions 220, and one second supporting portion 220 is correspondingly connected to one first supporting portion 120.

In the above embodiment, the reinforcement 130 is beneficial to increase the strength of the first support 120, and thus to increase the reliability of the installation of the traction wheel 300.

One of the two first supporting portions 120 has a sidewall abutting against the extension portion 230, and the other sidewall is connected to the reinforcement portion 130, which is beneficial to improving the uniformity of the strength of the two first supporting portions 120. Therefore, after the traction wheel 300 is stressed, the bending deformation amounts of the two first supporting parts 120 are substantially uniform. Thereby helping to prevent deflection of traction wheel 300. In the endoscope, the pulling or releasing of the pulling rope 400 is realized by rotating the pulling wheel 300 to adjust the length of the pulling rope 400 wound on the pulling wheel 300, and the distal steering of the insertion part of the endoscope is further realized. Therefore, the embodiment can avoid the deviation of the position of the traction rope 400 wound on the traction wheel 300 caused by the inconsistent bending deformation amount of the two first supporting parts 120, ensure that the traction rope 400 can be wound on the traction wheel 300 at a preset position, and improve the precision of the distal end steering of the endoscope insertion part.

According to some alternative embodiments, as shown in fig. 4, the first housing 100 has a second mounting hole 102. Illustratively, the second mounting hole 102 penetrates the reinforcement part 130 and the first body part 110, and the second mounting hole 102 communicates with the inner space of the first housing 100 and the outer space of the first housing 100. In this way, components inside the housing assembly may be connected to external devices through the second mounting holes 102. Illustratively, where the housing assembly is used with an endoscope, the endoscope further includes a channel tube 500. The channel pipe 500 penetrates the second mounting hole 102, and the channel pipe 500 is connected with the reinforcement 130. In this way, not only can the strength of the first support 120 be increased by the reinforcement 130, but also it can be used to provide support for the mounting channel tube 500. Illustratively, the channel tube 500 may be, but is not limited to, an instrument channel, a suction channel of an endoscope.

In some alternative embodiments, the reinforcement 130 and the first support 120 are of unitary construction, which is beneficial for further improving the strength of the first support 120.

Referring to fig. 4 and 7, in some alternative embodiments, the first housing 100 further includes a stiffener 140. Illustratively, the reinforcing ribs 140 are disposed at both sides of the first supporting portion 120 in the thickness direction. The reinforcing ribs 140 are respectively connected to the side wall of the first supporting portion 120 and the inner side wall of the first body portion 110. Illustratively, the surface of the reinforcing rib 140 is perpendicular to the surface of the first supporting portion 120.

In the above embodiment, the reinforcing ribs 140 are beneficial to further improve the strength of the first supporting portion 120, and thus to improve the stability of the traction wheel 300 mounted on the first supporting portion 120.

In another aspect, the present application provides an endoscope. Referring to fig. 7-10, an endoscope provided herein includes a housing assembly provided herein in an embodiment. Illustratively, the endoscope includes an operating portion. The housing assembly may serve as a housing portion of the operating portion.

Referring to fig. 7-9, according to some alternative embodiments, the endoscope further includes a traction wheel 300 and a traction cable 400. Wherein traction wheel 300 is in rotational engagement with first support 120. The proximal end of the traction rope 400 is connected to the traction wheel 300. The distal end of the pull cord 400 is coupled to the distal end of the endoscope insertion portion to rotate the pull cord 400 by the traction wheel 300 to thereby bend and steer the distal end of the insertion portion.

In some alternative embodiments, the extension 230 of the second housing 200 of the housing assembly is positioned on the side of the first support 120 adjacent to the traction rope 400 such that the pulling force generated by the traction rope 400 can be transferred to the extension 230 to enhance the stability of the traction wheel 300 installation. Therefore, the endoscope is advantageous in that the pulling wheel 300 is prevented from loosening and falling off, and the reliability of the bending and steering function of the insertion front end of the endoscope is ensured.

According to some alternative embodiments, referring to fig. 9 and 10, the endoscope further comprises a lever 600. Illustratively, the lever 600 is coupled to the traction wheel 300 to rotate the traction wheel 300 relative to the first support 120 via the lever 600.

Referring to fig. 10, in some alternative embodiments, the second housing 200 is provided with an avoidance port, and the operation rod 600 penetrates through the second housing 200 from the avoidance port, so that an operator can operate the traction wheel 300 to rotate from the outside of the housing assembly through the operation rod 600, and further drive the distal end of the endoscope insertion portion to bend and turn.

In some alternative embodiments, referring to fig. 9, the endoscope further comprises a channel tube 500. Illustratively, the proximal end of the channel tube 500 is disposed within the housing assembly. Illustratively, a portion of the channel tube 500 may pass out of the housing assembly from the second mounting aperture 102 such that the proximal end of the channel tube 500 may be connected to a device external to the housing assembly. For example, the channel tube 500 may be connected to a negative pressure device located outside the housing assembly to suck the liquid or gas in the body through the negative pressure device.

The endoscope of the embodiment of the application can be a bronchoscope, a nephroscope, a esophagoscope, a gastroscope, a enteroscope, an otoscope, a rhinoscope, an stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope and the like. The embodiment of the present application does not particularly limit the kind of endoscope.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model.

Claims (10)

1. A housing assembly for an endoscope, the housing assembly comprising a first housing (100) and a second housing (200),

the first housing (100) comprises a first main body part (110) and a first supporting part (120), and a first end of the first supporting part (120) in the extending direction is connected with the first main body part (110);

the second housing (200) comprises a second main body part (210), a second supporting part (220) and an extending part (230), wherein a first end of the second supporting part (220) in the extending direction is connected with the second main body part (210), the extending part (230) is arranged on the second supporting part (220), and the extending part (230) protrudes out of a second end of the second supporting part (220) in the extending direction;

the second body part (210) is covered on the first body part (110), the second end of the first support part (120) in the extending direction is abutted with the second end of the second support part (220) in the extending direction, and the extending part (230) is abutted against the side wall of the first support part (120).

2. The housing assembly according to claim 1, wherein the extension part (230) comprises a support section (231) and a guide section (232), the support section (231) being supported on a side wall of the first support part (120), a first end of the support section (231) in the extension direction being connected to the second support part (220), a second end of the support section (231) in the extension direction being connected to the guide section (232);

the guide section (232) has a guide surface (2321), and is inclined in a direction away from the first support section (120) along an end of the guide section (232) close to the support section (231) toward an end of the guide section (232) away from the support section (231).

3. The housing assembly according to claim 2, wherein the second end of the first support portion (120) in the extending direction has a first mounting groove (121), the first mounting groove (121) includes a groove bottom section (1211), the groove bottom section (1211) is an arc-shaped concave surface, a distance between a center of the arc-shaped concave surface and an end face of the second end of the first support portion (120) in the extending direction is a first distance,

the distance between the second end of the extending direction of the support section (231) and the end face of the second end of the extending direction of the first support part (120) is a second distance; the second distance is greater than or equal to the first distance.

4. The housing assembly of claim 3, wherein the first mounting slot (121) further comprises a slot segment (1212), the slot segment (1212) being in communication with the slot base segment (1211); the second end of the second support part (220) in the extending direction comprises a protruding part (221), at least part of the protruding part (221) is positioned on the notch section (1212), and a first mounting hole (101) is formed between the protruding part (221) and the bottom of the first mounting groove (121).

5. The housing assembly according to claim 4, wherein both side walls of the boss (221) in the groove width direction of the first mounting groove (121) are respectively stopped against the inner wall of the first mounting groove (121).

6. The housing assembly of claim 5, wherein a side of the boss (221) opposite the groove bottom section (1211) has a second mounting groove (2211), the second mounting groove (2211) is an arc-shaped groove, and a center of the arc-shaped groove coincides with a center of the arc-shaped concave surface.

7. The housing assembly according to any one of claims 1 to 6, wherein the endoscope comprises a traction wheel (300) and a traction rope (400), the traction wheel (300) is connected to the first support (120) in a rotationally engaged manner, the traction rope (400) is located on a first side of the traction wheel (300), and the traction rope (400) is connected to the traction wheel (300); the extension (230) terminates at a sidewall of the first support (120) adjacent a first side of the traction wheel (300).

8. The housing assembly according to claim 7, wherein the first housing (100) further comprises a reinforcement portion (130) and two of the first support portions (120), the reinforcement portion (130) being provided to the first body portion (110);

the two first supporting parts (120) are arranged at intervals along the axial direction of the traction wheel (300); one side wall of the first supporting part (120) is propped against the extending part (230), and the other side wall is connected with the reinforcing part (130);

the second housing (200) includes two second supporting portions (220), and one second supporting portion (220) is correspondingly connected to one first supporting portion (120).

9. The housing assembly according to claim 8, wherein the first housing (100) has a second mounting hole (102), the second mounting hole (102) penetrates the reinforcement portion (130) and the first main body portion (110), and the second mounting hole (102) communicates with an inner space of the first housing (100) and an outer space of the first housing (100);

the endoscope further includes a channel tube (500), the channel tube (500) penetrates the second mounting hole (102), and the channel tube (500) is connected with the reinforcement portion (130).

10. An endoscope comprising the housing assembly of any one of claims 1 to 9.