Novel strabismus hook

Abstract

The utility model relates to a novel strabismus hook which comprises an outer shell, a first drag hook fixedly connected with the outer surface of the outer shell and perpendicular to the bottom face of the outer shell, and a second drag hook fixedly connected through a connecting rod, one end of the second drag hook is inserted into the outer shell, the other end of the second drag hook extends outwards from the interior of the outer shell, and scale marks are arranged on the surface of the connecting rod. The starting point on the scale line corresponds to the position of the joint of the second drag hook and the connecting rod, the first drag hook and the second drag hook are located on the same side of the connecting rod and are parallel to each other, the end of the connecting rod is connected with a moving assembly, and the second drag hook is driven to move in the direction away from or close to the first drag hook through translation movement of the moving assembly. According to the utility model, a doctor is helped to determine the operation amount of extraocular muscle interception, the measurement result is more accurate, one doctor can simultaneously straighten and fix the extraocular muscle position muscle and directly measure the distance between the two draw hooks in the process, and the operation is simple and rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical instrument technical field especially relates to a novel strabismus hook. BACKGROUND

[0002] The strabismus hook is used for the instrument of operation, is mainly used for cutting, suture or lifting the tissue and organ in operation. Its surface is smooth, will not produce scratch or damage patient tissue. In operation, the doctor needs to select the strabismus hook of different shape and size according to the need, to reach the best operation effect;

[0003] The utility model discloses a novel strabismus operation hook, including first rod body, second rod body, draw hook and measuring assembly, the rear end of first rod body and second rod body is connected with first measuring rod and second measuring rod respectively, the middle part of second rod body is hinged with the middle part of first rod body, the rear end of two draw hooks is fixedly connected in the front end part of first rod body and second rod body, and the side surface of two draw hooks away from each other is all provided with suture slot along the axial direction, the measuring assembly is arranged between first measuring rod and second measuring rod, and is used for measuring the opening distance between two draw hooks, although the purpose that the opening distance between two draw hooks can be measured is reached, but in the process of using, the value of observation measurement is carried out in the part close to the holding, and the opening angle of two draw hooks is not favorable to control and stabilize when the reading shield operation space is adopted in the holding mode, leading to inaccurate reading, therefore, the above problem needs to be solved. UTILITY MODEL CONTENTS

[0004] The utility model provides a novel strabismus hook, helps the doctor to determine the operation amount of eye extraocular muscle cutting, and the measurement result is more accurate, and one doctor single -handed operation can complete the straightening fixation of eye extraocular muscle position muscle simultaneously, and the distance between two draw hooks is directly measured in this process, and the operation is simple and fast.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a novel strabismus hook, comprising a housing, a first draw hook fixedly connected with the outer surface of the housing and perpendicular to the bottom surface of the housing, and a second draw hook fixedly connected with a connecting rod inserted into the housing at one end and extending outward from the inside of the housing at the other end, the connecting rod is provided with a scale line on the surface, the starting point on the scale line corresponds to the connection position of the second draw hook and the connecting rod, the first draw hook and the second draw hook are located on the same side of the connecting rod and are parallel to each other, the end of the connecting rod is connected with a moving assembly, and the second draw hook is driven to move away from or close to the first draw hook through the translational movement of the moving assembly.

[0006] As a further improvement, the moving assembly comprises an extension rod and a sleeve which is sleeved on the surface of the extension rod and fixed with the surface of the extension rod, and the extension rod is an extension segment of the connecting rod from the connecting position with the second hook to the horizontal direction away from the shell.

[0007] As a further improvement, the connecting rod comprises a core rod and a stopper fixed with one end of the core rod, the scale line is arranged on the outer surface of the core rod, the other end of the core rod away from the stopper is fixed with the second hook, the extension rod is an extension segment of the core rod from the connecting position with the second hook to the horizontal direction away from the shell, and one side end surface of the shell is provided with a socket for inserting the core rod.

[0008] As a further improvement, the moving assembly comprises an extension rod and a plate-shaped pressing part formed on one side end of the extension rod, the extension rod is arranged inside the shell and the other end of the extension rod away from the pressing part is fixed with the other end of the connecting rod away from the second hook, one side end surface of the shell is provided with an insertion port which is in communication with the inside of the shell, and the pressing part extends outside the shell from the position of the insertion port.

[0009] As a further improvement, the connecting rod comprises a core rod and a stopper fixed with one end of the core rod, the scale line is arranged on the outer surface of the core rod, the other end of the core rod away from the stopper is fixed with the second hook, the other end of the extension rod away from the pressing part is fixed on the other side surface of the stopper away from the core rod, the surface of the core rod is sleeved with a spring, one side end surface of the shell is provided with a socket for inserting the core rod, one end of the spring is in contact with the surface of the core rod connected with the stopper, and the other end of the spring is in contact with the circumferential edge of the socket.

[0010] As a further improvement, the socket is matched with the cross-sectional shape of the core rod.

[0011] As a further improvement, the side wall outer surface of the stopper is in circumferential contact with the inner wall surface of the shell.

[0012] As a further improvement, the shell is provided with a rectangular fixing port at the symmetrical position of the two side surfaces and corresponding to the position of the extension rod, the shell is provided with a gear, the center of the gear corresponds to the position of the two fixing ports, the extension rod is a rack, one side of the rack is in meshing engagement with the gear, the center of the gear is a rectangular positioning port, a fixing pin for limiting the rotation of the gear is inserted from the position of the fixing port, the fixing pin comprises a rectangular body limiting part matched with the shapes of the positioning port and the fixing port, and a cylindrical insertion part with a rectangular positioning port as an inscribed circle, and one end of the insertion part is integrally formed with one end of the fixing part.

[0013] As a further improvement, the rectangular body limiting part is provided with two, and the two rectangular body limiting parts are integrally connected with the two ends of the cylindrical insertion part.

[0014] As a further improvement, the support portion is formed by extending the plug-in interface perpendicularly from the outer periphery of the housing side wall surface.

[0015] The above technical scheme of the utility model has the following beneficial effects: the utility model discloses the strabismus hook in the unused state, and the surface of the first pull hook and the second pull hook is in contact, so that it is more convenient to store and place in the unused state, and when the first pull hook and the second pull hook are in contact and placed, the cross section of the end away from the connecting rod is increased, so that the hand is prevented from being injured by mistake, and the first pull hook and the second pull hook can be conveniently inserted into the space between the sclera and the extraocular muscle from the end portion by the doctor, when the surface of the first pull hook and the second pull hook is in contact, the starting point on the scale line is flush with the plug-in position of the shell, force is applied to the end of the moving assembly extending out of the shell by the operator, the second pull hook moves in parallel in the direction away from the first pull hook under the action of the force, and finally the extraocular muscle is pulled and fixed, in the process that the second pull hook moves away from the first pull hook, the scale position on the scale line corresponding to the plug-in is changed, after the position of the second pull hook is finally fixed, the medical staff can directly read the scale corresponding to the plug-in position, the operation amount of the extraocular muscle is determined by the doctor, the measurement result is more accurate, and one-handed operation of the doctor can complete the straightening and fixing of the extraocular muscle position muscle and directly measure the distance between the two pull hooks in the process, so that the operation is simple and rapid. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure schematic view of one of the embodiments of the utility model;

[0017] Figure 2 It is an overall structure schematic view of one of the embodiments of the utility model;

[0018] Figure 3 It is an overall structure schematic view of one of the embodiments of the utility model;

[0019] Figure 4 It is an overall structure schematic view of one of the embodiments of the utility model;

[0020] Figure 5 It is an overall structure schematic view of one of the embodiments of the utility model.

[0021] Mark: 1, the shell, 2, the first pull hook, 3, the connecting rod, 4, the second pull hook, 5, the scale line, 6, the moving assembly, 7, the lengthening rod, 8, the outer sleeve, 9, the core rod, 10, the stop block, 11, the plug-in, 12, the pressing portion, 13, the plug-in interface, 14, the spring, 15, the fixed mouth, 16, the gear, 17, the positioning mouth, 18, the fixed pin, 19, the limiting portion, 20, the plug-in portion, 21, the support portion. DETAILED DESCRIPTION

[0022] The following examples further illustrate the content of the present application, but should not be construed as limiting the present application. Any modification or replacement made to the method, steps or conditions of the present application without departing from the spirit and essence of the present application shall fall within the scope of the present application.

[0023] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples.

[0024] Please refer to Figures 1 to 5The utility model discloses a novel strabismus hook, including shell 1 and with the outer surface fixed connection of shell 1 and with the bottom surface perpendicular of shell 1 first pull hook 2, and the fixed connection of second pull hook 4 through one end plug -in in shell 1 and the other end from the inside of shell 1 outward extension connecting rod 3, the surface of connecting rod 3 is provided with scale line 5, the starting point on scale line 5 corresponds the connecting place of second pull hook 4 and connecting rod 3, first pull hook 2 and second pull hook 4 are located the same side of connecting rod 3 and the position parallel with each other, the end of connecting rod 3 connects moving assembly 6, and the parallel movement of moving assembly 6 will drive second pull hook 4 to move away or close to first pull hook 2 direction activity, the strabismus hook of the application is used in the surgery of strabismus patient, and the eye extraocular muscle of patient needs to be cut off and sutured in strabismus surgery, according to the different degree of strabismus, the operation amount of muscle cutting is different, so after using first pull hook 2 and second pull hook 4 to straighten and fix the eye extraocular muscle, the distance between the two pull hooks must be measured quickly and accurately, in the application, at least one end of shell 1 is provided with the socket 11 for the plug -in of connecting rod 3, because one end of connecting rod 3 is inserted from the plug -in position of socket 11 and is inserted in shell 1, the other end is fixed and perpendicular and is connected with second pull hook 4, because the parallel movement of moving assembly 6 will drive second pull hook 4 to move away or close to first pull hook 2 direction activity, so the movement of moving assembly 6 makes connecting rod 3 from the plug -in position of socket 11 to stretch out to the outside of shell 1, thereby drive second pull hook 4 to move away from first pull hook 2, the specific moving assembly 6 can be: moving assembly 6 is located in the inside of shell 1 and moves along the inside surface of shell 1 to the direction close to socket 11 or away from socket 11 and moves in parallel, one end of moving assembly 6 is fixedly connected with the end of connecting rod 3 away from second pull hook 4, and one end of moving assembly 6 away from connecting rod 3 extends to the outside of shell 1 in the direction away from socket 11, at this time, in the state that the strabismus hook is not used, the surface of first pull hook 2 and second pull hook 4 contacts, which is more convenient for storage in the unused state, at the same time, when first pull hook 2 and second pull hook 4 contact and place, the section of one end away from connecting rod 3 increases, to avoid accidentally hurting the hand, and it is convenient for the doctor to stretch first pull hook 2 and second pull hook 4 from the end into the sclera and eye extraocular muscle, when the surface of first pull hook 2 and second pull hook 4 contacts, the starting point on scale line 5 is flush with the position of socket 11 of shell 1, by exerting force on one end of moving assembly 6 that stretches out of shell 1, under the action of the thrust, second pull hook 4 moves away from first pull hook 2 in parallel, finally realizes the straightening and fixing of eye extraocular muscle, in the process that second pull hook 4 moves away from first pull hook 2, the scale position on scale line 5 corresponding to socket 11 changes, finally, after the position of second pull hook 4 is fixed, medical staff can directly read the scale corresponding to the position of socket 11, that is the distance between first pull hook 2 and second pull hook 4, to help the doctor to determine the operation amount of eye extraocular muscle cutting, and the measurement result is more accurate,And one doctor single-handed operation can be completed at the same time on the eye muscle position straight fixed muscle while directly measuring the distance between the two hooks in the process, simple and fast operation, the specific moving assembly 6 can also be: the moving assembly 6 includes the extension rod 7 which is extended from the connecting rod 3 connecting with the second hook 4 to the horizontal direction away from the shell 1, and the sleeve 8 which is sleeved on the surface of the extension rod 7 and fixed with the surface of the extension rod 7, before use, the surface of the first hook 2 and the second hook 4 is in contact, in use, the operator first stretches the first hook 2 and the second hook 4 from the end into the sclera and the extraocular muscle, at this time, the starting point on the scale line 5 is flush with the position of the socket 11 of the shell 1, further, the operator holds the sleeve 8 position, because the sleeve 8 is sleeved and fixed on the surface of the extension rod 7, and one end of the extension rod 7 is integrated with the connecting rod 3, so in the process of moving the operator holding the sleeve 8, under the action of tension, the second hook 4 gradually moves away from the first hook 2 in parallel direction, finally realizes the flat fixation of the extraocular muscle, in the process of the second hook 4 moving away from the first hook 2, the scale position on the scale line 5 corresponding to the socket 11 changes, finally the second hook 4 position is fixed, the medical staff can directly read the scale corresponding to the position of the socket 11, which is the distance between the first hook 2 and the second hook 4, the measurement result is more accurate, which helps the doctor to determine the operation amount of the extraocular muscle, the above scheme needs one doctor to operate with both hands, retains the habit of operating with both hands, and the use of the strabismus hook instrument of the structure is more quickly mastered.

[0025] Please see Figure 1As shown, specifically, the moving assembly 6 comprises an extension rod 7 and a sleeve 8 sleeved on the surface of the extension rod 7 and fixed with the surface of the extension rod 7, the extension rod 7 is an extension section of the connecting rod 3 from the connecting position with the second hook 4 to the horizontal direction away from the shell 1, in use, while keeping the habit of the doctor's hands operation, the extension rod 7 is driven to move away from the shell 1 by pulling the sleeve 8, since the extension rod 7 is an extension section of the connecting rod 3 from the connecting position with the second hook 4 to the horizontal direction away from the shell 1, and the connecting rod 3 is fixedly connected with one end of the second hook 4, therefore, when the extension rod 7 moves away from the shell 1, the connecting rod 3 is gradually stretched out of the shell 1, and finally the second hook 4 is moved away from the first hook 2 in parallel, and finally the eye external muscle is pulled and fixed, in the process that the second hook 4 moves away from the first hook 2, the scale position of the scale line 5 corresponding to the socket 11 changes, and finally the doctor can directly read the scale corresponding to the position of the socket 11, that is, the distance between the first hook 2 and the second hook 4, the measurement result is more accurate, and helps the doctor to determine the operation amount of the eye external muscle, the above scheme needs one doctor to operate with both hands, although when the use is completed, the connecting rod 3 can be retracted into the shell 1 by pushing the sleeve 8, and finally the first hook 2 and the second hook 4 are in contact, the storage space of the whole instrument occupies a large space, but the habit of the doctor's hands operation is better kept, and this is convenient for the doctor to master and operate the strabismus hook instrument of the structure more quickly.

[0026] Please refer to Figure 1 As shown, specifically, the connecting rod 3 comprises a core rod 9 and a stop block 10 fixedly connected with one end of the core rod 9, the scale line 5 is arranged on the outer surface of the core rod 9, one end of the core rod 9 away from the stop block 10 is fixedly connected with the second hook 4, the extension rod 7 is an extension section of the core rod 9 from the connecting position with the second hook 4 to the horizontal direction away from the shell 1, one side end surface of the shell 1 is provided with a socket 11 for inserting the core rod 9, the cross section of the stop block 10 is larger than that of the socket 11, and one end of the core rod 9 away from the stop block 10 is stretched out of and retracted into the shell 1 from the position of the socket 11, since the cross section of the stop block 10 is larger than that of the socket 11, the connecting rod 3 is prevented from being pulled out of the shell 1 in the process that the second hook 4 moves away from the first hook 2, and the integration of the instrument structure is ensured.

[0027] Please refer to Figures 2 to 5As shown, specifically, the moving assembly 6 includes an elongated rod 7 and a plate-shaped pressing portion 12 formed at one end of the elongated rod 7, the elongated rod 7 is arranged inside the shell 1 and one end of the elongated rod 7 away from the pressing portion 12 is fixedly connected with one end of the connecting rod 3 away from the second hook 4, one side end surface of the shell 1 is provided with a plug-in port 13 in communication with the inside of the shell 1, the pressing portion 12 extends outside the shell 1 from the position of the plug-in port 13, the pressing portion 12 is placed outside the shell 1, in the process of use, by the operator applying pressure to one end of the pressing portion 12, pushing it to the inside of the shell 1, since the elongated rod 7 is arranged inside the shell 1 and one end of the elongated rod 7 away from the pressing portion 12 is fixedly connected with one end of the connecting rod 3 away from the second hook 4, the elongated rod 7 drives the connecting rod 3 to extend from one end of the shell 1, finally making the second hook 4 move in parallel away from the first hook 2, finally realizing the straightening and fixing of the extraocular muscle, in the process of the second hook 4 moving away from the first hook 2, the scale position of the scale line 5 corresponding to the plug-in port 11 changes, finally after the position of the second hook 4 is fixed, the medical staff can directly read the scale corresponding to the position of the plug-in port 11, which is the distance between the first hook 2 and the second hook 4, helping the doctor to determine the operation amount of the extraocular muscle, the measurement result is more accurate, and the above-mentioned strabismus hook can be operated by one hand of the doctor at the same time to complete the straightening and fixing of the extraocular muscle and directly measure the distance between the two hooks in the process, which is simple and fast.

[0028] Please see Figure 3As shown, specifically, the connecting rod 3 includes a core rod 9 and a stop block 10 fixedly connected to one end of the core rod 9, the scale line 5 is arranged on the outer surface of the core rod 9, the other end of the core rod 9 away from the stop block 10 is fixedly connected with the second draw hook 4, the other end of the extension rod 7 away from the pressing part 12 is fixedly connected to the other side surface of the stop block 10 away from the core rod 9, the surface of the core rod 9 is sleeved with a spring 14, the side end surface of the shell 1 is provided with a socket 11 for inserting the core rod 9, the socket 11 and the insertion port 13 are respectively arranged on the two end surfaces of the shell 1 opposite to each other, one end of the spring 14 is in contact with the surface of the core rod 9 connected with the stop block 10, the other end of the spring 14 is in contact with the circumferential edge of the socket 11, when the operator presses the pressing part 12, the extension rod 7 is pressed to press the pressing block, the pressing block further pushes the core rod 9 out of the position of the socket 11 to extend, so that the second draw hook 4 is away from the first draw hook 2, because the surface of the core rod 9 is sleeved with the spring 14, one end of the spring 14 is in contact with the surface of the core rod 9 connected with the stop block 10, and the other end of the spring 14 is in contact with the circumferential edge of the socket 11, in the process that the stop block 10 approaches the position of the socket 11, the spring 14 is gradually compressed while maintaining a certain resilience, so that the stability of the core rod 9 extending out of the shell 1 is ensured, the second draw hook 4 is prevented from being too fast away from the first draw hook 2, the distance between the first draw hook 2 and the second draw hook 4 is accurately measured, and after the measurement is completed, the pressing part 12 is released, the spring 14 is automatically reset by springing back, the second draw hook 4 is automatically driven to return to the position and approach and contact the first draw hook 2, and the use is more convenient.

[0029] Please refer to Figure 1 As shown, specifically, the shape of the socket 11 is matched with the cross-sectional shape of the core rod 9, so that the process of the connecting rod 3 extending out of the socket 11 is more stable and avoids shaking, the parallel and away of the second draw hook 4 relative to the first draw hook 2 is ensured, and the measurement result is more accurate.

[0030] Please refer to Figure 3 and Figure 5 As shown, specifically, the side wall outer surface of the stop block 10 is in circumferential contact with the inner wall surface of the shell 1, so that the process of the core rod 9 extending out of the position of the socket 11 is more stable and avoids shaking, the parallel and away of the second draw hook 4 relative to the first draw hook 2 is further ensured, and the measurement result is more accurate.

[0031] Please refer to Figure 4 and Figure 5As shown, specifically, the two sides of the shell 1 are provided with rectangular fixed ports 15 at the symmetrical positions corresponding to the positions of the extended rod 7, the gear 16 is arranged in the shell 1, the center of the gear 16 corresponds to the positions of the two fixed ports 15, the extended rod 7 is a rack, one side of the rack is engaged with the gear 16, the center of the gear 16 is a rectangular positioning port 17, the fixed pin 18 is inserted into the fixed port 15 to limit the rotation of the gear 16, the fixed pin 18 comprises a rectangular body limiting portion 19 and a cylindrical insertion portion 20, the rectangular body limiting portion 19 is adapted to the shapes of the rectangular positioning port 17 and the fixed port 15, and the cross section of the cylindrical insertion portion 20 is a circle inscribed in the rectangular positioning port 17, one end of the insertion portion 20 is integrally formed with one end of the fixed portion, when the cylindrical insertion portion 20 is inserted into the rectangular positioning port 17 and the fixed port 15, the gear 16 rotates when the rack moves, when the rectangular body limiting portion 19 is inserted into the rectangular positioning port 17 and the fixed port 15, the gear 16 is locked, so that the rack cannot move, during use, after the pressing portion 12 is pushed, the rack starts to move towards the direction of the insertion port 11, because one side of the rack is engaged with the gear 16, and the cross section of the insertion portion 20 of the fixed pin 18 is a circle inscribed in the rectangular positioning port 17, the insertion portion 20 is integrally inserted into the rectangular positioning port 17 and the fixed port 15, so the gear 16 rotates in place, the pushing block 10 drives the core rod 9 to extend out of the shell 1 from the insertion port 11, when the position of the second pull hook 4 is stable, the scale at the position of the insertion port 11 on the core rod 9 can be read, when the measurement is completed, the positions of the first pull hook 2 and the second pull hook 4 need to be fixed, the rectangular body limiting portion 19 can be directly pushed into the fixed port 15, so that the rectangular body limiting portion 19 is inserted into the rectangular positioning port 17 and the fixed port 15 at the same time, the rotation of the gear 16 is limited, the position of the rack is fixed, and finally the positions of the first pull hook 2 and the second pull hook 4 are fixed, and the positions of the first pull hook 2 and the second pull hook 4 are kept, which is convenient for doctors to operate.

[0032] Please refer to Figure 4 As shown, specifically, the rectangular body limiting portion 19 is provided with two, the two rectangular body limiting portions 19 are integrally formed with the two ends of the cylindrical insertion portion 20, which is convenient for use in different sides of the eye.

[0033] Please refer to Figures 2 to 5 As shown, specifically, the support portion 21 is formed by extending from the outer periphery of the insertion port 13 to the side wall surface of the shell 1 in the vertical direction, which can be used as a support during the process of pushing the pressing portion 12, and is more labor-saving and convenient.

[0034] The above-described embodiments are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A novel oblique hook, characterized in that: The device includes a housing (1) and a first hook (2) fixedly connected to the outer surface of the housing (1) and perpendicular to the bottom surface of the housing (1), and a second hook (4) fixedly connected by a connecting rod (3) with one end inserted into the housing (1) and the other end extending outward from the inside of the housing (1). The connecting rod (3) has a scale line (5) on its surface. The starting point on the scale line (5) corresponds to the connection point between the second hook (4) and the connecting rod (3). The first hook (2) and the second hook (4) are located on the same side of the connecting rod (3) and are parallel to each other. The end of the connecting rod (3) is connected to a moving component (6). The translational movement of the moving component (6) will drive the second hook (4) to move away from or towards the first hook (2).

2. The novel squint hook according to claim 1, characterized in that: The moving component (6) includes an extension rod (7) and an outer sleeve (8) fitted onto and fixed to the surface of the extension rod (7), wherein the extension rod (7) is an extension of the connecting rod (3) from its connection with the second hook (4) in a horizontal direction away from the outer shell (1).

3. The novel squint hook according to claim 2, characterized in that: The connecting rod (3) includes a core rod (9) and a stop block (10) fixedly connected to one end of the core rod (9). The scale line (5) is set on the outer surface of the core rod (9). The end of the core rod (9) away from the stop block (10) is fixedly connected to the second hook (4). The extension rod (7) is the horizontal extension of the core rod (9) from the connection point with the second hook (4) away from the outer shell (1). The outer shell (1) has a socket (11) on one end surface for inserting the core rod (9). The cross section of the stop block (10) is larger than that of the socket (11).

4. The novel squinting hook according to claim 1, characterized in that: The moving component (6) includes an extension rod (7) and a plate-shaped pressing part (12) formed with one end of the extension rod (7). The extension rod (7) is disposed inside the housing (1) and the end of the extension rod (7) away from the pressing part (12) is fixedly connected to the end of the connecting rod (3) away from the second hook (4). A plug-in interface (13) communicating with the interior is provided on one end face of the housing (1). The pressing part (12) extends out of the housing (1) from the plug-in interface (13).

5. The novel squint hook according to claim 4, characterized in that: The connecting rod (3) includes a core rod (9) and a stop block (10) fixedly connected to one end of the core rod (9). The scale line (5) is set on the outer surface of the core rod (9). The end of the core rod (9) away from the stop block (10) is fixedly connected to the second hook (4). The end of the extension rod (7) away from its pressing part (12) is fixedly connected to the other side surface of the stop block (10) away from the core rod (9). A spring (14) is sleeved on the surface of the core rod (9). A socket (11) for inserting the core rod (9) is opened on one end surface of the outer shell (1). One end of the spring (14) is in contact with the surface of the stop block (10) connected to the core rod (9), and the other end of the spring (14) is in contact with the circumferential edge of the socket (11).

6. The novel oblique hook according to claim 3 or 5, characterized in that: The shape of the socket (11) is adapted to the cross-sectional shape of the core rod (9).

7. The novel squinting hook according to claim 6, characterized in that: The outer surface of the side wall of the stop (10) is in circumferential contact with the inner wall surface of the outer shell (1).

8. The novel squint hook according to claim 5, characterized in that: Rectangular fixing holes (15) are provided at symmetrical positions on both sides of the outer shell (1) and at positions corresponding to the extension rod (7). A gear (16) is provided inside the outer shell (1). The center of the gear (16) corresponds to the positions of the two fixing holes (15). The extension rod (7) is a rack. One side of the rack meshes with the gear (16). The center of the gear (16) is a rectangular positioning hole (17). A fixing pin (18) for restricting the rotation of the gear (16) is inserted from the fixing hole (15). The fixing pin (18) includes a rectangular limiting part (19) that is adapted to the shape of the positioning hole (17) and the fixing hole (15), and a cylindrical insertion part (20) with a cross-section that is the inscribed circle of the rectangular positioning hole (17). One end of the insertion part (20) is integrally formed with one end of the fixing part.

9. The novel squint hook according to claim 8, characterized in that: Two rectangular limiting parts (19) are provided, and the two rectangular limiting parts (19) are integrally formed and connected to the two ends of the cylindrical insertion part (20).

10. The novel squint hook according to claim 4, characterized in that: A support portion (21) extends vertically from the outer periphery of the insertion interface (13) toward the side wall surface of the outer shell (1).

Images