Buckle and endoscope having the buckle

Abstract

The present application discloses a buckle and an endoscope having the buckle, the buckle comprises a base and a platform, the base comprises a body having an inner cavity, a first guide groove formed in the inner cavity, a sliding plate arranged in the first guide groove, and an elastic member arranged between the sliding plate and the body, the lower part of the inner cavity has an opening, and a receiving hole is arranged on the sliding plate at a position opposite to the opening; the platform comprises a boss that can enter the inner cavity from the opening and be inserted into the receiving hole. The boss can push the sliding plate to move along the first guide groove during the insertion into the receiving hole, so that the elastic member is deformed, and the sliding plate can be reset under the elastic force of the elastic member and engage with the boss, so that the base is engaged with the platform.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to a buckle and an endoscope having the buckle. Background Art

[0002] A snap fastener is a mechanism used for embedding and connecting one part with another part or for overall locking. In different application scenarios, snap fasteners come in various forms.

[0003] An endoscope is a commonly used medical device. An endoscope generally includes an insertion component that can be inserted into a patient's body and a control handle outside the patient's body that controls the movement of the insertion component. During the use of the endoscope, doctors often need to select insertion components of different types or specifications according to the different conditions of the patients. In the prior art, it is inconvenient to replace the insertion component of the endoscope during use, which brings great inconvenience to the preoperative preparation work of the surgery using the endoscope. The hospital even needs to be equipped with multiple sets and types of endoscopes, which greatly increases the hospital's operating costs. For this reason, it is necessary to provide a buckle that facilitates the assembly and disassembly of the insertion component and the control handle. Summary of the invention

[0004] One of the embodiments of the present application provides a buckle, which includes a card seat and a card platform, the card seat includes a main body with an inner cavity, a first guide groove formed in the inner cavity, a sliding plate arranged in the first guide groove, and an elastic member arranged between the sliding plate and the main body, the bottom of the inner cavity has an opening, and a receiving hole is provided on the sliding plate at a position opposite to the opening; the card platform includes a boss that can enter the inner cavity from the opening and be inserted into the receiving hole; wherein, the boss can push the sliding plate to move along the first guide groove during the process of inserting into the receiving hole, so that the elastic member is deformed, and after the boss is inserted into the receiving hole, the sliding plate can be reset under the elastic force of the elastic member and engage with the boss, so that the card seat is snapped with the card platform.

[0005] In some embodiments, the main body includes a bottom wall and side walls surrounding the bottom wall, the bottom wall and the side walls form the inner cavity, and the opening is formed on the bottom wall; the main body also includes two first guide plates arranged in the inner cavity and respectively located on the left and right sides of the opening, and the first guide groove is formed between the two first guide plates.

[0006] In some embodiments, the elastic member is a compression spring, the front end of the elastic member abuts against the rear end of the sliding plate, and the rear end of the elastic member abuts against the inner surface of the side wall.

[0007] In some embodiments, the main body also includes two second guide plates arranged in the inner cavity and located on the rear side of the opening, the two second guide plates are spaced apart so that a second guide groove is formed therebetween, the extension direction of the second guide groove is parallel to the extension direction of the first guide groove, the rear end of the sliding plate is connected to a guide rod, the guide rod can extend into the second guide groove and can reciprocate along the second guide groove, and the elastic member is located in the second guide groove and is sleeved on the guide rod.

[0008] In some embodiments, an open groove is provided on the side wall, and the open groove is located at the front end of the inner cavity. A button is connected to the front end of the sliding plate, and the button is located in the open groove. When the elastic component is in an initial state, the button protrudes forward through the open groove. When the button is pressed backward, the sliding plate can be pushed backward to compress the elastic component so that the engaged sliding plate and the boss can be separated.

[0009] In some embodiments, a third guide groove is provided on the sliding plate, and the extension direction of the third guide groove is parallel to the second guide groove. A limiting pin that can extend into the third guide groove is provided on the bottom wall of the main body. When the sliding plate slides in the first guide groove, the limiting pin can slide in the third guide groove to constrain the sliding plate to slide along the extension direction of the first guide groove.

[0010] In some embodiments, the third guide groove, the button and the guide rod are located in a straight line.

[0011] In some embodiments, an upwardly extending baffle is further provided on the bottom wall of the main body, and the baffle is located in the accommodating hole. When the limiting pin is located at the front end of the third guide groove, the front edge of the accommodating hole can abut against the baffle.

[0012] In some embodiments, the body, the inner cavity and the boss are all cylindrical, and the opening is circular.

[0013] In some embodiments, a groove is provided on the boss. When the boss is inserted into the receiving hole of the sliding plate, the boss can push the sliding plate to move so that the sliding plate drives the elastic component to deform until the groove moves to the sliding plate. The sliding plate can be stuck in the groove under the elastic force of the elastic component.

[0014] In some embodiments, the groove is an arc-shaped groove that smoothly transitions with the outer wall of the boss.

[0015] In some embodiments, a fourth guide groove extending in the up-down direction is provided on one of the outer wall surface of the boss of the card table and the inner wall surface of the opening of the card seat, and a guide column is provided on the other one, wherein when the boss is inserted into the receiving hole of the sliding plate or when the boss exits the receiving hole of the sliding plate, the guide column can slide along the fourth guide groove.

[0016] In some embodiments, the buckle further includes an upper cover plate that can be disposed in the inner cavity and covers the upper portion of the sliding plate, and the upper cover plate is detachably connected to the body.

[0017] Another embodiment of the present application provides an endoscope, which includes the buckle described in any of the above technical solutions.

[0018] In some embodiments, the endoscope further includes a control handle, a bending tube and a lens assembly, one end of the bending tube is connected to the lens assembly, the other end of the bending tube is connected to the control handle via the buckle, one of the bending tube and the control handle is connected to the buckle's seat, and the other is connected to the card base.

[0019] In some embodiments, the endoscope also includes a plurality of traction ropes connected between the control handle and the bending tube and a pad provided between the clamping seat of the buckle and the clamping platform. The control handle can pull the bending tube to bend through the plurality of traction ropes, and the pad is provided with a plurality of limiting holes for the traction ropes to pass through. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in the form of exemplary embodiments, which will be described in detail by way of the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0021] Figure 1 is a schematic diagram of a three-dimensional structure of a buckle according to some embodiments of the present application;

[0022] Figure 2 It is a schematic diagram of installing a card holder and a card stand of a clip according to some embodiments of the present application;

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the main body of the card seat of the buckle shown in some embodiments of the present application;

[0024] Figure 4 is a schematic diagram of a three-dimensional structure of a sliding plate of a clamping seat according to some embodiments of the present application;

[0025] Figure 5It is a schematic diagram of the three-dimensional structure of the backing plate of the endoscope shown in some embodiments of the present application.

[0026] Explanation of the accompanying drawings: 1 is a card seat, 2 is a card table, 3 is an upper cover plate, 4 is a fourth guide groove, 5 is a guide column, 6 is a pad, 11 is a body, 12 is a sliding plate, 13 is an elastic member, 21 is a boss, 22 is an annular step, 23 is a groove, 31 is a through hole, 61 is a limiting hole, 111 is an inner cavity, 112 is an opening, 113 is a bottom wall, 114 is a side wall, 115 is an opening groove, 116 is a first guide plate, 117 is a second guide plate, 118 is a limiting nail, 119 is a baffle, 121 is a accommodating hole, 122 is a guide rod, 123 is a button, 124 is a third guide groove, 1161 is a first guide groove, and 1171 is a second guide groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] On the contrary, the present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application as defined by the claims. Further, in order to make the public have a better understanding of the present application, some specific details are described in detail in the detailed description of the present application below. Those skilled in the art can fully understand the present application without the description of these details.

[0029] The embodiment of the present application relates to a buckle, which can connect two separate parts. For example, it is used on an endoscope to connect a curved tube inserted into a patient's body with a control handle. Of course, the buckle of the present application can also be used in other scenarios to connect two parts, such as furniture or daily necessities, and the present application does not make specific restrictions on this.

[0030] Figure 1 is a schematic diagram of a three-dimensional structure of a buckle according to some embodiments of the present application, Figure 2 is a schematic diagram of installing a card holder and a card stand of a clip according to some embodiments of the present application, Figure 3 is a schematic diagram of the three-dimensional structure of the main body of the clip holder according to some embodiments of the present application, Figure 4 1 is a schematic diagram of a three-dimensional structure of a sliding plate of a clamping seat according to some embodiments of the present application. Figure 1-4 The buckle 1000 involved in the embodiment of the present application is described in detail. It should be noted that the following embodiments are only used to explain the present application and do not constitute a limitation on the present application.

[0031] In the embodiments of the present application, Figure 1-4 As shown, the buckle 1000 may include a card seat 1 and a card platform 2. The card seat 1 may include a body 11 having an inner cavity 111, a first guide groove 1161 formed in the inner cavity 111, a sliding plate 12 disposed in the first guide groove 1161, and an elastic member 13 disposed between the sliding plate 12 and the body 11. The inner cavity 111 has an opening 112 at the bottom, and a receiving hole 121 is disposed on the sliding plate 12 at a position opposite to the opening 112. The card platform 2 may include a boss 21 that can enter the inner cavity 111 from the opening 112 and be inserted into the receiving hole 121. The boss 21 can push the sliding plate 12 to move along the first guide groove 1161 during the process of inserting into the receiving hole 121, so that the elastic member 13 is deformed. After the boss 21 is inserted into the receiving hole 121, the sliding plate 12 can be reset under the elastic force of the elastic member 13 and engage with the boss 21, so that the card seat 1 and the card platform 2 are engaged. During the use of the buckle 1000 of the present application, the body 11 of the card holder 1 and the card platform 2 can be respectively connected to two separate parts to be connected, and then the two separate parts to be connected can be connected by the buckle 1000 of the present application. In some embodiments, the connection between the body 11 of the card holder 1 and the part to be connected and the connection between the card platform 2 and the part to be connected can be fixedly connected by bonding, welding, etc., or detachably connected by card connection, threaded connection, etc. In some embodiments, the elastic member 13 can be selected as a tension spring, a compression spring, a rubber body or a spring sheet, etc., and the present application does not specifically limit it here.

[0032] In some embodiments, the body 11 may include a bottom wall 113 and a side wall 114 surrounding the bottom wall 113, the bottom wall 113 and the side wall 114 enclose an inner cavity 111, and the opening 112 is formed on the bottom wall 113. The body 11 may also include two first guide plates 116 disposed in the inner cavity 111 and respectively located on the left and right sides of the opening 112, and a first guide groove 1161 is formed between the two first guide plates 116. Such a structural design of the body 11 of the card holder 1 is not only convenient for production and manufacturing, but also has a high structural strength. In some alternative embodiments, the first guide groove 1161 may be a groove body opened on the bottom wall 113, and a protrusion structure that can be inserted into the groove body may be provided on the sliding plate 12 to enable the sliding of the sliding plate 12 along the first guide groove 1161.

[0033] In some embodiments, the elastic member 13 may be a compression spring, the front end of the elastic member 13 abuts against the rear end of the sliding plate 12, and the rear end of the elastic member 13 abuts against the inner surface of the side wall 114. In this embodiment, when the boss 21 is inserted into the receiving hole 121, the boss 21 pushes the sliding plate 12 to move backward along the first guide groove 1161, so that the sliding plate 12 compresses the compression spring, and thereafter, when the boss 21 is inserted into the preset position, the sliding plate 12 can move forward and reset under the elastic force of the elastic member 13, thereby engaging with the boss 21. In some alternative embodiments, the elastic member 13 may also be set as a tension spring, and when the boss 21 is inserted into the receiving hole 121, the boss 21 pushes the sliding plate 12 to cause the tension spring to be stretched and deformed.

[0034] In some embodiments, the body 11 further includes two second guide plates 117 disposed in the inner cavity 111 and located at the rear side of the opening 112. The two second guide plates 117 are spaced apart so that a second guide groove 1171 is formed therebetween. The extension direction of the second guide groove 1171 is parallel to the extension direction of the first guide groove 1161. The rear end of the sliding plate 12 is connected to a guide rod 122 parallel to the extension direction of the second guide groove 1171. The guide rod 122 can extend into the second guide groove 1171 and can reciprocate along the second guide groove 1171. The elastic member 13 is located in the second guide groove 1171 and is sleeved on the guide rod 122. The second guide groove 1171 and the guide rod 122 can constrain the position of the elastic member 13 to prevent the elastic member 13 from deviating during the deformation process, thereby improving the working stability of the buckle 1000 of the present application. It should be noted that the extension direction of the first guide groove 1161 refers to the direction in which the sliding plate 12 moves in the first guide groove 1161 , and the extension direction of the second guide groove 1171 refers to the direction in which the guide rod 122 moves in the second guide groove 1171 .

[0035] In some embodiments, an opening slot 115 is provided on the side wall 114, and the opening slot 115 is located at the front end of the inner cavity 111 of the side wall 114. A button 123 is connected to the front end of the sliding plate 12, and the button 123 is located in the opening slot 115. When the elastic member 13 is in the initial state, the button 123 protrudes forward through the opening slot 115. When the card holder 1 and the card platform 2 are in a state of being engaged, if the card holder 1 and the card platform 2 are to be separated, the button 123 is pressed backward. When the button 123 is pressed backward, the sliding plate 12 can be pushed backward to compress the elastic member 13, so that the boss 21 can be withdrawn from the receiving hole 121 of the sliding plate 12, so that the engaged sliding plate 12 and the boss 21 can be separated. In some alternative embodiments, a limit groove can be provided on the side wall 114, and the limit groove is located on the left or right side of the inner cavity 111. The position of the corresponding limit groove of the sliding plate 12 is connected to a lever, which extends from the limit groove. The sliding plate 12 can also be pushed backward by pushing the lever backward.

[0036] In some embodiments, the sliding plate 12 is provided with a third guide groove 124, the extension direction of the third guide groove 124 is parallel to the second guide groove 1171, and the bottom wall 113 of the body 11 is provided with a limiting nail 118 that can extend into the third guide groove 124. When the sliding plate 12 slides in the first guide groove 1161, the limiting nail 118 can slide in the third guide groove 124 to constrain the sliding plate to slide along the extension direction of the first guide groove 1161. Under the cooperation of the limiting nail 118 and the third guide groove 124, the forward and backward sliding distances of the sliding plate 12 are limited, which can not only prevent the sliding plate 12 from falling out of the body 11, but also protect the guide rod 122 and the side wall 114, prevent the guide rod 122 from colliding with the groove wall of the second guide groove 1171, thereby avoiding the guide rod 122 from breaking, etc., and extending the service life of the buckle 1000 of the present application. In addition, the third guide groove 124 and the limiting pin 118 further limit the sliding track of the sliding plate 12, which can prevent the collision between the guide rod 122 and the second guide plate 117 caused by the deviation of the sliding plate 12. In some alternative embodiments, the third guide groove 124 can be set on the bottom wall of the body 11, and the limiting pin 118 can be set on the sliding plate 12. Those skilled in the art can specifically select the setting positions of the limiting pin 118 and the third guide groove 124 according to actual conditions. Preferably, the third guide groove 124, the button 123 and the guide rod 122 are located in a straight line. The third guide groove 124 and the button 123 are located in front of the receiving hole 121 of the sliding plate 12, and the guide rod 122 is located behind the receiving hole 121. The entire sliding plate 12 has a reasonable layout, high structural stability, and is easy to manufacture. It should be noted that the extension direction of the third guide groove 124 refers to the direction in which the limiting pin 118 moves in the third guide groove 124.

[0037] In some embodiments, a baffle 119 extending upward is further provided on the bottom wall 113 of the body 11, and the baffle 119 is located in the receiving hole 121. When the limiting pin 118 is located at the front end of the third guide groove 124, the front edge of the receiving hole 121 can abut against the baffle 119. The baffle 119 limits the distance of the sliding plate 12 moving backward, and further protects the limiting pin 118 and the guide rod 122, thereby further extending the service life of the buckle 1000 of the present application.

[0038] In some embodiments, in order to avoid interference with surrounding structures as much as possible during the use of the buckle 1000, the body 11, the inner cavity 111 and the boss 21 are all cylindrical, and the opening 112 is circular. In some alternative embodiments, the card table 2 also includes a base connected to the bottom of the boss 21, which is also cylindrical, and the outer diameter of the boss 21 is smaller than the outer diameter of the base, and the outer diameter of the base is roughly equal to the outer diameter of the body 11. Through such a setting, after the card seat 1 is connected to the card table 2, the shape of the entire buckle 1000 is regular, which is convenient for use and storage. In some alternative embodiments, the opening 112 can also be other shapes, such as square, triangle, hexagon, ellipse or irregular shape. At this time, the inner cavity 111 and the boss 21 can be designed as corresponding cylindrical shapes. When the opening is a polygon, its corners can be a smooth transition.

[0039] In some embodiments, a groove 23 is provided on the boss 21. When the boss 21 is inserted into the receiving hole 121 of the sliding plate 12, the boss 21 can push the sliding plate 12 to move so that the sliding plate 12 drives the elastic member 13 to deform until the groove 23 moves to the sliding plate 12, and the sliding plate 12 can be stuck in the groove 23 under the elastic force of the elastic member 13. In some alternative embodiments, in order to make the sliding plate 12 more firmly engaged with the boss 21, the groove 23 can be an arc-shaped groove 23 with a smooth transition to the outer wall of the boss 21. In some alternative embodiments, an annular step 22 (or chamfer) is provided on the outer surface of the upper end of the boss 21, and the groove 23 is provided below the annular step 22, and the outer diameter of the annular step 22 gradually increases from top to bottom. Since the outer diameter of the annular step 22 gradually increases from top to bottom, the annular step 22 can be more easily inserted into the inner cavity 111 and gradually push the sliding plate 12 to slide backward. In some alternative embodiments, in order to make the boss 21 push the sliding plate more smoothly, the position on the sliding plate 12 that contacts the boss 21 may also be set to be a step, or a slope (inclined surface), etc.

[0040] In some embodiments, a fourth guide groove 4 extending in the up-down direction is provided on one of the outer wall surface of the boss 21 of the card table 2 and the inner wall surface of the opening 112 of the card seat 1, and a guide column 5 is provided on the other. When the boss 21 is inserted into the receiving hole 121 of the sliding plate 12 or when the boss 21 exits the receiving hole 121 of the sliding plate 12, the guide column 5 can slide along the fourth guide groove 4. Preferably, the guide column 5 is provided on the baffle 119 of the sliding plate 12 and extends in the up-down direction. By providing the guide column 5 and the fourth guide groove 4, it is convenient to determine the insertion angle of the boss 21 (determine the position of the groove 23) when the boss 21 is inserted into the inner cavity 111, so as to facilitate the engagement of the boss 21 with the sliding plate 12; in addition, it is also possible to prevent the boss 21 from rotating circumferentially relative to the body 11 during the insertion of the boss 21 into the inner cavity 111 and after the engagement of the boss 21 with the sliding plate 12 is completed.

[0041] In some embodiments, the buckle 1000 of the present application may further include an upper cover plate 3 that can be arranged in the inner cavity 111 and covers the upper part of the sliding plate 12, and the upper cover plate 3 is detachably connected to the body 11. The upper cover plate 3 can protect the connection structure between the body 11 and the sliding plate 12. In addition, the upper cover plate 3 can be used to connect with the components to be clamped using the buckle 1000 of the present application, so as to reduce the connection structure such as the mounting hole on the body 11 and improve the structural strength of the body 11. The upper cover plate 3 can be connected to the body 11 in a variety of ways, such as threaded connection, clamping, etc. In some alternative embodiments, threaded holes are provided on the first guide plate 116 and the second guide plate 117 of the body 11, and through holes 31 are correspondingly provided on the upper cover plate 3, and the upper cover plate 3 can be connected to the body 11 by screws. The threaded holes are arranged on the first guide plate 116 and the second guide plate 117, which can avoid the setting of the threaded holes to reduce the structural strength of the body 11 as much as possible, and can also ensure that the connection and disassembly of the upper cover plate 3 and the body 11 are more convenient.

[0042] The beneficial effects that the buckle 1000 disclosed in this application may bring include but are not limited to: (1) the connection and disassembly of the card platform 2 and the card base 1 are very convenient; (2) the connection between the card platform 2 and the card base 1 is firm and reliable after the card platform 2 and the card base 1 are connected; (3) the buckle 1000 has a simple structure, is stable and reliable in use, and has a long service life. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0043] Another embodiment of the present application provides an endoscope, which includes the buckle 1000 of any of the above technical solutions. By using the buckle 1000 in any of the above technical solutions, different functions and different models of accessories of the endoscope can be easily replaced, so as to improve the efficiency of preoperative preparation and reduce hospital operating costs.

[0044] In some embodiments, the endoscope further comprises a control handle, a curved tube and a lens assembly, wherein the curved tube can carry the lens assembly and be inserted into a human body passage, so that the doctor can observe the patient's lesion site through the lens assembly, and the control handle can control the steering of the lens assembly on the curved tube, so that the doctor can observe the patient's lesion site more clearly and comprehensively. One end of the curved tube is connected to the lens assembly, and the other end of the curved tube is connected to the control handle through a buckle 1000, and one of the curved tube and the control handle is connected to the card seat 1 of the buckle 1000, and the other is connected to the card table 2. Preferably, the control handle is connected to the card seat 1, and the curved tube is connected to the card table 2. Since both the curved tube and the lens assembly need to be inserted into the patient's body, during the use of the endoscope, the operator can select different curved tubes and lens assemblies according to the actual situation of the patient (such as the patient's age, the degree of opening of the upper and lower jaws of the patient, and the specific surgical operation required by the patient, etc.), and can conveniently clip the curved tube and the lens assembly to the control handle. In some alternative embodiments, the lens assembly and the curved tube can also be connected by a buckle 1000.

[0045] Figure 5 It is a schematic diagram of the three-dimensional structure of the backing plate of the endoscope shown in some embodiments of the present application. In some embodiments, the endoscope may also include a plurality of traction cables connected between the control handle and the bending tube and a backing plate 6 provided between the card seat 1 and the card table 2 of the buckle 1000. The control handle can pull the bending tube to bend through the plurality of traction cables, and the backing plate 6 is provided with a plurality of limiting holes 61 for the traction cables to pass through. In some alternative embodiments, the backing plate 6 is also provided with a threaded hole so that the backing plate 6 and the upper cover plate 3 can be connected by a threaded connector. After using the buckle 1000 of the present application, the limiting hole 61 can ensure that the traction cable can continue to effectively control the bending tube to bend under the action of the control handle. In some alternative embodiments, the upper cover plate 3 is also provided with a plurality of limiting holes 61 for the traction cable to pass through, so as to further ensure that the traction cable can stably and effectively pull the bending tube to bend.

[0046] The beneficial effects that the endoscope disclosed in this application may bring include but are not limited to: (1) a control handle can be used with a variety of specifications and functions of bending tubes and lens assemblies, thereby reducing the cost of using the endoscope; (2) the operation of replacing the bending tube and lens assembly is simple and convenient, thereby improving the efficiency of preoperative preparation. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0047] It should be particularly emphasized that the directions or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0048] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A buckle, characterized in that: The card base (1) comprises a card seat (1) and a card table (2), wherein the card seat (1) comprises a body (11) having an inner cavity (111), a first guide groove (1161) formed in the inner cavity (111), a sliding plate (12) arranged in the first guide groove (1161), and an elastic member (13) arranged between the sliding plate (12) and the body (11); The bottom of the inner cavity (111) has an opening (112), and a receiving hole (121) is provided on the sliding plate (12) at a position opposite to the opening (112); the card platform (2) comprises a boss (21) capable of entering the inner cavity (111) from the opening (112) and being inserted into the receiving hole (121); The boss (21) is capable of pushing the sliding plate (12) to move along the first guide groove (1161) during the process of being inserted into the receiving hole (121), so that the elastic component (13) is deformed; after the boss (21) is inserted into the receiving hole (121), the sliding plate (12) is capable of being reset under the elastic force of the elastic component (13) and being engaged with the boss (21), so that the base (1) is engaged with the base (2).

2. The buckle according to claim 1, characterized in that: The body (11) comprises a bottom wall (113) and a side wall (114) surrounding the bottom wall (113), wherein the bottom wall (113) and the side wall (114) enclose the inner cavity (111), and the opening (112) is formed on the bottom wall (113); the body (11) further comprises two first guide plates (116) arranged in the inner cavity (111) and respectively located on the left and right sides of the opening (112), and the first guide groove (1161) is formed between the two first guide plates (116).

3. The buckle according to claim 2, characterized in that: The elastic component (13) is a compression spring, the front end of the elastic component (13) abuts against the rear end of the sliding plate (12), and the rear end of the elastic component (13) abuts against the inner surface of the side wall (114).

4. The buckle according to claim 3, characterized in that: The body (11) further comprises two second guide plates (117) arranged in the inner cavity (111) and located at the rear side of the opening (112); the two second guide plates (117) are arranged at intervals so that a second guide groove (1171) is formed therebetween; the extension direction of the second guide groove (1171) is parallel to the extension direction of the first guide groove (1161); the rear end of the sliding plate (12) is connected to a guide rod (122); the guide rod (122) can extend into the second guide groove (1171) and can reciprocate along the second guide groove (1171); the elastic member (13) is located in the second guide groove (1171) and is sleeved on the guide rod (122).

5. The buckle according to claim 4, characterized in that: The side wall (114) is provided with an open groove (115), and the open groove (115) is located at the front end of the inner cavity (111). The front end of the sliding plate (12) is connected with a button (123), and the button (123) is located in the open groove (115). When the elastic member (13) is in an initial state, the button (123) protrudes forward through the open groove (115). When the button (123) is pressed backward, the sliding plate (12) can be pushed backward to compress the elastic member (13), so that the sliding plate (12) and the boss (21) that are engaged with each other can be separated.

6. The buckle according to claim 5, characterized in that: The sliding plate (12) is provided with a third guide groove (124), and the extension direction of the third guide groove (124) is parallel to the second guide groove (1171). The bottom wall (113) of the main body (11) is provided with a limiting nail (118) capable of extending into the third guide groove (124). When the sliding plate (12) slides in the first guide groove (1161), the limiting nail (118) can slide in the third guide groove (124) to constrain the sliding plate (12) to slide along the extension direction of the first guide groove (1161).

7. The buckle according to claim 6, characterized in that: The third guide groove (124), the button (123) and the guide rod (122) are located on a straight line.

8. The buckle according to claim 6, characterized in that: The bottom wall (113) of the body (11) is also provided with a baffle (119) extending upward, and the baffle (119) is located in the receiving hole (121). When the limiting pin (118) is located at the front end of the third guide groove (124), the front side edge of the receiving hole (121) can abut against the baffle (119).

9. The buckle according to claim 1, characterized in that: The body (11), the inner cavity (111) and the boss (21) are all cylindrical, and the opening (112) is circular.

10. The buckle according to claim 9, characterized in that: The boss (21) is provided with a groove (23). When the boss (21) is inserted into the receiving hole (121) of the sliding plate (12), the boss can push the sliding plate (12) to move so that the sliding plate (12) drives the elastic component (13) to deform until the groove (23) moves to the sliding plate (12). The sliding plate (12) can be stuck in the groove (23) under the elastic force of the elastic component (13).

11. The buckle according to claim 10, characterized in that: The groove (23) is an arc-shaped groove that smoothly transitions with the outer wall of the boss (21).

12. The buckle according to any one of claims 1 to 11, characterized in that: A fourth guide groove (4) extending in the up-down direction is provided on one of the outer wall surface of the boss (21) of the card table (2) and the inner wall surface of the opening (112) of the card seat (1), and a guide column (5) is provided on the other, wherein when the boss (21) is inserted into the receiving hole (121) of the sliding plate (12) or when the boss (21) is withdrawn from the receiving hole (121) of the sliding plate (12), the guide column (5) can slide along the fourth guide groove (4).

13. The buckle according to any one of claims 1 to 11, characterized in that: It also includes an upper cover plate (3) that can be arranged in the inner cavity (111) and covers the upper part of the sliding plate (12), and the upper cover plate (3) is detachably connected to the body (11).

14. An endoscope, characterized in that: A buckle comprising the buckle described in any one of claims 1-13.

15. The endoscope according to claim 14, characterized in that The endoscope further comprises a control handle, a bending tube and a lens assembly, one end of the bending tube is connected to the lens assembly, the other end of the bending tube is connected to the control handle via the buckle, one of the bending tube and the control handle is connected to the buckle seat (1), and the other is connected to the card base (2).

16. The endoscope according to claim 15, characterized in that It also includes a plurality of traction ropes connected between the control handle and the bending tube and a pad (6) provided between the clamping seat (1) of the buckle and the clamping platform (2); the control handle can pull the bending tube to bend through the plurality of traction ropes; and the pad (6) is provided with a plurality of limiting holes (61) for the traction ropes to pass through.

Images