Endoscope self-locking device and endoscope

Abstract

The present invention relates to the technical field of endoscopes, and specifically to an endoscope self-locking device. It comprises a housing and a rotating handle, wherein a locking member 1 is fixedly arranged in the housing, wherein the locking member 1 is rotatably connected to a rotating shaft, and a locking mechanism for cooperating with the locking member 1 is movably connected to the rotating shaft; the locking mechanism comprises an operating rod, a roller, a locking member, a wedge block and a locking member 2, wherein the locking member is connected to the operating rod, wherein the operating rod cooperates with the wedge block, wherein the wedge block is arranged on the locking member 2, wherein the locking member 2 is movably connected to the rotating shaft, and wherein the locking member 2 can only move along the axial direction of the rotating shaft; wherein the operating rod controls the locking member 2 to cooperate with the locking member 1 to realize self-locking, and at the same time, the locking member locks the operating rod. The rotating handle of the present invention can realize self-locking, realize locking of the insertion tube, ensure the stability of the imaging of the insertion tube, and reduce the fatigue intensity of the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope self-locking device and an endoscope. Background Art

[0002] In endoscope products, the bending and rotation of the end of the insertion tube is achieved by turning the handle, but the bending and rotation of the insertion tube has a certain resilience. When the user does not apply force to the handle during operation, the insertion tube will rebound and deform. When observing a certain angle inside the human body, the user needs to keep applying force to the handle to keep the bending and rotation of the insertion tube in a specific position. However, if the user keeps applying force to control the insertion tube to remain in a specific position, it will cause fatigue to the user and the control stability is poor. Therefore, a self-locking structure needs to be provided to keep the insertion tube in a specific position. Summary of the invention

[0003] The object of the present invention is to provide an endoscope self-locking device to solve the technical problem in the prior art that the handle cannot achieve self-locking when the handle is turned to adjust the bending and rotation of the insertion tube.

[0004] The present invention is achieved through the following technical solutions:

[0005] An endoscope self-locking device comprises a housing and a rotating handle, wherein the rotating handle is connected to the housing and rotates relative to the housing;

[0006] The rotating handle comprises a toggle bracket, a left bracket, a right bracket and a rotating shaft, wherein the toggle bracket is fixedly connected to the left bracket and the right bracket respectively; the rotating shaft passes through the housing and is fixedly connected to the left bracket and the right bracket respectively;

[0007] A locking member 1 is fixedly disposed in the housing, the locking member 1 is rotatably connected to a rotating shaft, and a locking mechanism for cooperating with the locking member 1 is movably connected to the rotating shaft;

[0008] The locking mechanism comprises an operating rod, a roller, a locking piece, a wedge block and a second locking piece, wherein the locking piece is connected to the operating rod, the operating rod cooperates with the wedge block, the wedge block is arranged on the second locking piece, the second locking piece is movably connected to the rotating shaft, and the second locking piece can only move along the axial direction of the rotating shaft;

[0009] The operating rod controls the second locking member to cooperate with the first locking member to achieve self-locking, and the locking member locks the operating rod at the same time.

[0010] The locking part can be an existing structure, such as the sleeve, turntable and push rod provided in the existing ballpoint pen. The turntable can be telescopically fixed by pressing the push rod to make the turntable cooperate with the groove in the sleeve, and the turntable is connected to the operating rod. Since the structural shapes of the sleeve, turntable and push rod are all existing technologies, they will not be described in detail here.

[0011] The locking member includes the above structure but is not limited to the above structure.

[0012] Working principle: Rotate and slide the bracket to the required position, then press the operating lever to make the roller cooperate with the wedge block to push the locking piece 2 to move. When the locking piece 2 reaches the limit position, it cooperates with the locking piece 1 to lock, so that the rotating handle can be self-locking; at this time, the locking piece fixes the operating lever.

[0013] Preferably, the locking member 1 and the locking member 2 are engaged with each other through a toothed structure.

[0014] Preferably, the locking member 1 and the locking member 2 are both geared disc structures.

[0015] Preferably, a connecting block is provided on the second locking member, a connecting groove is provided on the connecting block along the axial direction of the rotating shaft, and the connecting block is slidably connected to the rotating shaft through the connecting groove.

[0016] It should be noted that two connecting shafts can be set on the rotating shaft, the connecting shafts are connected in the connecting grooves, and the connecting grooves can move relative to the connecting shafts; when in the locked state, the push rod acts on the locking member 2 to fix the connecting groove and the connecting shaft relatively.

[0017] Preferably, the roller is rotatably connected to the operating rod.

[0018] An endoscope comprises the above-mentioned self-locking device.

[0019] By adopting the above technical solution, the present invention has the following advantages:

[0020] 1. The rotating handle of the present invention can realize self-locking, realize locking of the insertion tube, ensure the stability of the insertion tube imaging, and reduce the fatigue intensity of the operator.

[0021] 2. In the present invention, both the locking member 1 and the locking member 2 are geared disc structures; the geared disc structure has a larger contact area and has a better restraining effect through tooth meshing and locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1The main view of

[0025] Figure 3 An exploded view of the present invention;

[0026] Figure 4 for Figure 3 's gaze diagram;

[0027] Figure 5 It is a structural schematic diagram of the locking mechanism of the present invention;

[0028] In the accompanying drawings: 10, rotating handle, 11, toggle bracket, 12, left bracket, 13, right bracket, 14, rotating shaft, 20, locking piece 1, 30, locking mechanism, 31, operating lever, 32, roller, 33, locking piece, 34, wedge block, 35, locking piece 2, 351, connecting block, 352, connecting groove. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Example 1

[0036] This embodiment provides an endoscope self-locking device, including a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing;

[0037] The rotating handle 10 includes a toggle bracket 11, a left bracket 12, a right bracket 13 and a rotating shaft 14. The toggle bracket 11 is fixedly connected to the left bracket 12 and the right bracket 13 respectively; the rotating shaft 14 passes through the housing and is fixedly connected to the left bracket 12 and the right bracket 13 respectively;

[0038] A locking member 20 is fixedly disposed in the housing, and the locking member 20 is rotatably connected to the rotating shaft 14, and a locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0039] The locking mechanism 30 includes an operating rod 31, a roller 32, a locking piece 33, a wedge block 34 and a second locking piece 35. The locking piece 33 is connected to the operating rod 31. The operating rod 31 cooperates with the wedge block 34. The wedge block 34 is arranged on the second locking piece 35. The second locking piece 35 is movably connected to the rotating shaft 14. The second locking piece 35 can only move along the axial direction of the rotating shaft 14.

[0040] The operating rod 31 controls the locking member 2 35 to cooperate with the locking member 1 20 to achieve self-locking, and the locking member 33 locks the operating rod 31 at the same time.

[0041] The locking member 33 may be an existing structure, such as the sleeve, turntable and push rod provided in an existing ballpoint pen. The turntable can be telescopically fixed by pressing the push rod to make the turntable cooperate with the groove in the sleeve. The turntable is connected to the operating rod 31. Since the structural shapes of the sleeve, turntable and push rod are all existing technologies, they will not be described in detail here.

[0042] The locking member 33 includes the above-mentioned structure but is not limited to the above-mentioned structure.

[0043] Working principle: rotate and move the bracket 11 to the required position, then press the operating rod 31 to make the roller 32 cooperate with the wedge block 34 to push the locking member 2 35 to move. When the locking member 2 35 reaches the limit position, it cooperates with the locking member 1 20 to lock, so that the rotating handle 10 can be self-locking; at this time, the locking member 33 fixes the operating rod 31.

[0044] Example 2

[0045] Based on Example 1, preferably, the locking member 1 20 and the locking member 2 35 are meshed through a tooth structure.

[0046] Preferably, the locking member 1 20 and the locking member 2 35 are both geared disc structures.

[0047] The gear teeth mesh with each other and have a larger contact surface, which can achieve a better locking effect.

[0048] The cooperation mode of the locking member 20 and the locking member 35 is not limited to the meshing of the toothed structure, and other structures that can make the locking member 20 and the locking member 35 cooperate to achieve the purpose of locking are all acceptable; for example, a groove can be provided on the locking member 20, and the outer diameter of the locking member 35 is adapted to the groove, and the locking member 35 falls into the groove, which can also achieve the purpose of the present invention.

[0049] Example 3

[0050] On the basis of Example 1 or 2, preferably, a connecting block 351 is provided on the locking member 35 , and a connecting groove 352 is provided on the connecting block 351 along the axial direction of the rotating shaft 14 , and the connecting block 351 is slidably connected to the rotating shaft 14 through the connecting groove 352 .

[0051] It should be noted that two connecting shafts can be set on the rotating shaft 14, and the connecting shafts are connected in the connecting groove 352, and the connecting groove 352 can move relative to the connecting shaft; when in the locked state, the push rod acts on the locking member 35 to fix the connecting groove 352 and the connecting shaft relatively.

[0052] The connecting blocks 351 are arranged on both sides of the rotating shaft 14, and the distance between the two connecting blocks 351 is greater than or equal to the diameter of the rotating shaft 14; the best way is that the distance is just adapted to the diameter of the rotating shaft 14, that is, the connecting block 351 can fit exactly on the rotating shaft 14, and the rotating shaft 14 has no effect on the movement of the connecting block 351.

[0053] During use, the operating rod 31 pushes the locking member 235 to move and cooperate with the locking member 1 20. At this time, the end of the connecting groove 352 away from the locking member 20 slides to the position closest to the locking member 20, and cooperates with the connecting shaft to achieve the effect of fixing the locking member 235 with the rotating shaft 14; the locking member 235 cooperates with the locking member 20 to fix the rotating handle 10, achieving the effect of self-locking of the rotating handle 10.

[0054] Example 4

[0055] Based on Embodiment 1, 2 or 3, preferably, the roller 32 is rotatably connected to the operating rod 31.

[0056] The rotating roller 32 can avoid damage to the roller 32 and the wedge block 34, thereby increasing the service life of the equipment.

[0057] Example 5

[0058] An endoscope comprises a housing and a rotating handle 10, wherein the rotating handle 10 is connected to the housing and rotates relative to the housing;

[0059] The rotating handle 10 includes a toggle bracket 11, a left bracket 12, a right bracket 13 and a rotating shaft 14. The toggle bracket 11 is fixedly connected to the left bracket 12 and the right bracket 13 respectively; the rotating shaft 14 passes through the housing and is fixedly connected to the left bracket 12 and the right bracket 13 respectively;

[0060] A locking member 20 is fixedly disposed in the housing, and the locking member 20 is rotatably connected to the rotating shaft 14, and a locking mechanism 30 for cooperating with the locking member 20 is movably connected to the rotating shaft 14;

[0061] The locking mechanism 30 includes an operating rod 31, a roller 32, a locking piece 33, a wedge block 34 and a second locking piece 35. The locking piece 33 is connected to the operating rod 31. The operating rod 31 cooperates with the wedge block 34. The wedge block 34 is arranged on the second locking piece 35. The second locking piece 35 is movably connected to the rotating shaft 14. The second locking piece 35 can only move along the axial direction of the rotating shaft 14.

[0062] The operating rod 31 controls the locking member 2 35 to cooperate with the locking member 1 20 to achieve self-locking, and the locking member 33 locks the operating rod 31 at the same time.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscope self-locking device, comprising a housing and a rotating handle (10), characterized in that: The rotating handle (10) is connected to the housing, and the rotating handle (10) rotates relative to the housing; the rotating handle (10) comprises a toggle bracket (11), a left bracket (12), a right bracket (13) and a rotating shaft (14); the toggle bracket (11) is fixedly connected to the left bracket (12) and the right bracket (13) respectively; the rotating shaft (14) passes through the housing and is fixedly connected to the left bracket (12) and the right bracket (13) respectively; A locking member (20) is fixedly disposed in the housing, the locking member (20) is rotatably connected to a rotating shaft (14), and a locking mechanism (30) for cooperating with the locking member (20) is movably connected to the rotating shaft (14); The locking mechanism (30) comprises an operating rod (31), a roller (32), a locking piece (33), a wedge block (34) and a second locking piece (35), wherein the locking piece (33) is connected to the operating rod (31), the operating rod (31) cooperates with the wedge block (34), the wedge block (34) is arranged on the second locking piece (35), the second locking piece (35) is movably connected to the rotating shaft (14), and the second locking piece (35) can only move along the axial direction of the rotating shaft (14); The operating rod (31) controls the second locking member (35) to cooperate with the first locking member (20) to achieve self-locking, and at the same time the locking member (33) locks the operating rod (31).

2. An endoscope self-locking device as claimed in claim 1, characterized in that: The locking member 1 (20) and the locking member 2 (35) are meshed with each other via a toothed structure.

3. An endoscope self-locking device as claimed in claim 2, characterized in that: The locking member 1 (20) and the locking member 2 (35) are both toothed disc structures.

4. The endoscope self-locking device according to claim 1, characterized in that: The second locking member (35) is provided with a connecting block (351), and a connecting groove (352) is provided on the connecting block (351) along the axial direction of the rotating shaft (14). The connecting block (351) is slidably connected to the rotating shaft (14) through the connecting groove (352).

5. The endoscope self-locking device according to claim 1, characterized in that: The roller (32) is rotatably connected to the operating rod (31).

6. An endoscope, characterized in that: Comprising the self-locking device according to any one of claims 1-5.

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