Clamping unit convenient to disassemble and replace

Abstract

The clamping unit comprises a positioning pin and a hook assembly clamping base which are coaxially connected, the positioning pin is connected to the tail end of a hook assembly and extends outwards in the radial direction of the hook assembly, and the tail end of the hook assembly is detachably connected to the front end of the clamping base in the axial direction; and the positioning pin is rotated until the positioning pin is locked on the side wall of the clamping base. The parts of the clamping unit are decomposed, all the parts of the clamping unit can be refined, all the parts are convenient to disassemble and replace, the cost is saved, the replacement convenience is improved, and the beneficial effects of being convenient to disassemble, higher in flexibility, precise in clamping and positioning, good in cooperative adjustment effect and the like are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of bionic fishing bait processing, and in particular to a clamping assembly that is easy to disassemble and replace. Background Art

[0002] When fishing with lures, lures are used to lure fish to the bait. The shape of the lures is similar to that of small fish, shrimp or insects. In the production process of lures, plastic, metal or silicone are used as raw materials. After the lures are shaped, they need to be painted.

[0003] In the prior art, manual spraying is mainly used. The operator holds a spray gun and sprays paint on the lures hung on the assembly line. After spraying the front side, the back side is sprayed. During the spraying process, the paint is easy to spread and splash, and some flying paint will be left on the fixtures on the assembly line, especially the clamping ends of the fixtures, which need to be cleaned regularly. However, in order to achieve precise clamping and to unify the clamping positions of each lure in the fixture, the clamping parts of the existing fixtures are fixedly connected to the output ends of their transmission parts, which is time-consuming and laborious to clean. Once one of the transmission parts is damaged, it cannot be replaced separately.

[0004] Therefore, there is an urgent need for a clamping unit that can ensure clamping accuracy and is easy to disassemble and replace. Summary of the invention

[0005] The purpose of the present application is to provide a clamping unit that is easy to disassemble and replace, so as to solve the problems existing in the prior art such as difficulty in replacing the clamping parts, poor flexibility, and difficulty in cleaning.

[0006] The embodiments of the present application can be implemented through the following technical solutions:

[0007] A clamping unit that is easy to disassemble and replace, comprising a positioning pin and a hook assembly connected in the same axial direction, an elastic body, and a clamping base.

[0008] The positioning pin is connected to the end of the hook assembly and extends radially outward along the hook assembly;

[0009] The front end of the hook assembly is used to clamp the material pulled along its axial direction, and the end of the hook assembly is detachably connected to the front end of the clamping base along the axial direction and rotated to lock the positioning pin to the side wall of the clamping base;

[0010] The elastic body is accommodated in the interior of the clamping base, and under the action of the hook assembly, axial compression deformation occurs in the interior of the clamping base, and the elastic force of the elastic body continuously transmits the force to the positioning pin to lock it on the side wall of the clamping base.

[0011] Furthermore, the front edge of the hook assembly extends axially outward in a hook shape and is used as a clamping end. The other end of the hook assembly is connected to a positioning pin that penetrates radially thereof. One end of the hook assembly connected to the positioning pin is detachably connected to the front end of the clamping base, and both ends of the positioning pin pass through the side walls of the clamping base.

[0012] Furthermore, the end side wall at the front end of the clamping base is provided with two centrally symmetrical limiting connection grooves, and the limiting connection grooves are at least arranged to extend in three different directions along the clamping base, and the ends are blind ends, and the at least three different directions are axial, circumferential, and axial, respectively.

[0013] Furthermore, the rear end of the clamping base accommodates the output end of the transmission shaft, and the connection position between the output end of the transmission shaft and the clamping base is fixed by a connecting piece, so that the rear end of the clamping base can block the displacement of the elastic body;

[0014] The two ends of the elastomer are respectively matched with the hook assembly and the output end of the transmission shaft. Under the action of the hook assembly and the output end of the transmission shaft, the elastomer undergoes compression deformation along its axial direction, and the elastic force of the elastomer transmits the axial force of the groove wall at the end of the limiting connection groove to the positioning pin.

[0015] Furthermore, the limiting connecting groove includes a first limiting connecting groove, a second limiting connecting groove, and a third limiting connecting groove. The first limiting connecting groove is axially interlinked with the second limiting connecting groove, the second limiting connecting groove is circumferentially interlinked with the third limiting connecting groove, and the blind end of the third limiting connecting groove extends axially toward the front end.

[0016] Furthermore, the hook assembly and the clamping base are coaxially arranged, and the clamping center of the clamping base of the hook assembly is located on the axis of the hook assembly.

[0017] Furthermore, the hook assembly comprises a detachably connected positioning connector, a limiting hook, and a connecting base, wherein the outer surface of the connecting base at one end facing away from the positioning pin is provided with a limiting groove, and the end of the limiting hook is coaxially connected to the limiting groove of the connecting base, and its axial and radial displacements are limited by the inner side wall of the limiting groove;

[0018] One end of the positioning connector passes through the end of the limiting hook along the radial direction of the connecting base and is connected to the middle of the limiting groove to limit the circumferential displacement of the limiting hook.

[0019] Furthermore, the limiting groove includes a first groove and a second groove, the first groove is connected to the second groove along its axial direction, the end of the second groove is a blind end, the distance l1 between the two inner walls of the first groove is smaller than the distance l2 between the two inner walls of the second groove, and accordingly, the end side wall of the limiting hook is stepped and adapted to the inner wall of the limiting groove.

[0020] Furthermore, the limit hook is a long, wide plate structure, which includes a handle and a hooking part connected in sequence along the Y-axis direction;

[0021] The hook portion is in a U-shaped shape on the XY plane, so as to be connected with the circular hook ring of the lure;

[0022] The inner wall of the hooking portion is provided with a limiting connection surface, which is bent into a hook shape toward the side inside the web, and the plane where the web is located is used as a reference plane for clamping and positioning.

[0023] Furthermore, the position-limiting connection surface includes an inner curved surface, and a vertical surface tangent to one side of the inner curved surface and extending along the Y-axis direction, so as to limit the connection position of the circular hanging ring at the hooking portion;

[0024] When the inner curved surface is observed in the positive direction of the Y-axis, the inner curved surface is an arc-shaped curved surface structure or a saddle-shaped surface structure.

[0025] The embodiment of the present application provides a clamping unit that is easy to disassemble and replace and has at least the following beneficial effects:

[0026] By decomposing the components of the clamping unit, the present application can refine the components of the clamping unit, facilitate disassembly and replacement of the components, save costs, improve the convenience of replacement, and be more flexible. It has the advantages of easy disassembly, strong flexibility, and precise clamping and positioning.

[0027] On this basis, in order to ensure that the disassembled parts can fit accurately and the clamping accuracy will not be reduced due to the action of various component forces, on the one hand, the present application sets the hook assembly as a limit hook that can cooperate with the lure hanging ring, and on the other hand, sets the hook assembly to cooperate with the clamping base through an elastomer and lock it in a fixed position of the clamping base, and the elastic force applied by the elastomer to the hook assembly is consistent with the direction of the pulling force of the object clamping hook, thereby ensuring the stability of the clamping.

[0028] In addition, by providing a reference surface at the clamping end of the hook assembly, the present application can facilitate the positioning of the clamping angle, thereby ensuring that the lures in two adjacent clamping kits can be rotated and adjusted to the same orientation and angle, ensuring not only the flexibility of disassembly, but also the advantage of a unified clamping orientation unique to a fixed connection, and the advantage of a good coordinated adjustment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1a , Figure 1b They are schematic diagrams of application scenarios of a clamping unit that is easy to disassemble and replace according to the present application;

[0030] Figure 2 This is a schematic diagram of a disassembled state of a clamping unit that is easy to disassemble and replace in the present application;

[0031] Figure 3 A structural schematic diagram for supplementing the description of the limiting connection groove of the clamping base in this application;

[0032] Figure 4 It is a structural schematic diagram of an embodiment of a connection base station in the present application;

[0033] Figure 5 A structural schematic diagram for supplementing the description of the limiting groove for connecting the base in the present application;

[0034] Figure 6 This is a schematic structural diagram of an embodiment of a limit hook in the present application;

[0035] Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle circle Ⅰ;

[0036] Figure 8 A front view of a limit hook in a preferred embodiment;

[0037] Fig. 9 for Figure 8 A partial enlarged schematic diagram of the middle circle II;

[0038] Fig.10 for Fig. 9 Schematic diagram of the CC section;

[0039] Fig.11 This is a schematic diagram of the overall structure of the hanging part in a preferred embodiment;

[0040] Fig.12 A front view of a hanging portion in a preferred embodiment;

[0041] Fig.13 for Fig.12 Schematic diagram of the DD section.

[0042] Numbers in the figure

[0043] Base plate 11, transmission assembly 12, first transmission part 122; second transmission part 123; transmission shaft 124; clamping kit 13, positioning connector 1330,

[0044] 1331-limiting hook, handle 13312, connecting section 13312-1, main section 13312-2, tail section 13312-3, hanging section 13313, root 13313-1, vertical surface 13313-1a, curved section 13313-2, inner curved surface 13313-2a, tip 13313-3, inclined surface 13313-3a, artificial bait 9, circular hanging ring 9a.

[0045] Connecting base 1332, limiting groove 13321, first groove 133210, second groove 133211, second base connecting hole 13322, first base connecting hole 13323, positioning pin 1333, elastic body 1334, clamping base 1335, limiting connecting groove 13351, first limiting connecting groove 133511, second limiting connecting groove 133512, third limiting connecting groove 133513. DETAILED DESCRIPTION

[0046] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0047] In addition, various components on the drawings are enlarged (thickened) or reduced (thinned) for ease of understanding, but this practice is not intended to limit the scope of protection of the present application.

[0048] Words importing the singular also include the plural and vice versa.

[0049] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, the words first, second, etc. are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance, and their names may be different in the detailed description and claims of the present application.

[0050] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0051] Figure 1a , Figure 1b They are schematic diagrams of application scenarios of a clamping unit that is easy to disassemble and replace in the present application, wherein: Figure 1b The schematic diagram of the structure with the protective cover removed is as follows: Figure 1a , Figure 1b As shown, a clamping unit that is easy to disassemble and replace is provided with at least two. The two clamping units are arranged opposite to each other on both sides of the base plate 11. The two clamping units 133 arranged opposite to each other together constitute a group of clamping kits 13. One end of the two clamping kits 13 in the same group is used to clamp the head and tail of the lure respectively, and the other end of the clamping kit 13 is connected to the output end of the transmission shaft of the transmission component 12. Under the rotation of the transmission component 12, the two clamping kits 13 in the same group cooperate to rotate synchronously, so that each surface of the lure can be rotated to a specified position, so that the spraying device can spray the specified position.

[0052] In some preferred embodiments, the transmission device 12 includes a first transmission part 122, a second transmission part 123 and a transmission shaft 124, the first transmission part 122 and the second transmission part 123 transmit power through the transmission shaft 124, and each transmission part is provided with a plurality of output ends connected to the clamping unit, and the protective cover 14 includes a first cover body 141 and a second cover body 142 which are separately arranged, and each cover body is respectively mounted on the outside of the two transmission parts of the transmission device 12, so as to protect the two transmission parts of the transmission device 12 respectively.

[0053] In some preferred embodiments, since the first transmission part 122 and the second transmission part 123 are respectively disposed at two ends of the clamp frame 11 and are disposed opposite to each other, the first transmission part 122 and the second transmission part 123 are connected for transmission via a transmission shaft 124 .

[0054] Since the clamping unit will twist under the rotation of the transmission assembly 12, in order to avoid matching deviation of the detachable structure of the clamping unit during the twisting process and to ensure that the clamping unit can still firmly clamp the lure during the rotation process, the applicant has optimized the structure of the clamping unit.

[0055] Specifically, as shown in Figure 2, the clamping unit includes a positioning pin 1333 and a coaxially connected hook assembly, an elastomer 1334, and a clamping base 1335, the positioning pin 1333 is connected to the end of the hook assembly and extends radially outward along the hook assembly, the end of the hook assembly is axially detachably connected to the front end of the clamping base 1335, and is rotated to lock the positioning pin 1333 to the side wall of the clamping base 1335.

[0056] Although, one end of the hook assembly connected to the locating pin 1333 is accommodated in the clamping base 1335, and the limiting connecting groove 13351 is used to limit the limiting pin 1333, the hook assembly will not shake along its circumferential and radial directions, and a detachable connection between the hook assembly and the clamping base 1335 can be achieved. However, once the transmission assembly 12 drives the clamping base 1335 to rotate, the torque will cause the relative position of the connection between the hook assembly and the clamping base 1335 to change, and any slight deviation will make the head and tail ends of the lure unable to rotate synchronously, thereby causing the lure to twist, and it is impossible to accurately spray the paint at the specified position of the lure. For this reason, the applicant further optimized the structure of the clamping unit.

[0057] Furthermore, the clamping base 1335 is a cylindrical structure with a hollow interior, and a transmission shaft is connected to the rear end of the clamping base 1335. The elastomer 1334 is accommodated inside the clamping base 1335 and undergoes elastic deformation inside the clamping base 1335. The elastic force of the elastomer 1334 continuously transmits the force that locks the positioning pin 1333 on the side wall of the clamping base 1335, so as to ensure the stability of the connection between the hook assembly and the clamping base 1335.

[0058] Therefore, the significance of the present application lies in that it can realize the detachable installation of each component, which is convenient for replacing / cleaning each component, and can also realize that each component is firmly matched together without any position deviation under the action of external force.

[0059] The structure of the present application is described in detail below in conjunction with specific embodiments.

[0060] In some preferred embodiments, one end of the hook assembly extends outward along its axial direction in a hook shape and is used as a clamping end, and the other end is connected to a positioning pin 1333 that penetrates radially thereof, and one end of the hook assembly connected to the positioning pin 1333 is detachably connected to the front end of the clamping base 1335, and the positioning pin 1333 passes through the side wall of the clamping base 1335 along the radial direction of the clamping base 1335.

[0061] Furthermore, the end side wall of the front end of the clamping base 1335 is provided with two centrally symmetrical limiting connection grooves 13351, and the limiting connection groove 13351 is at least arranged to extend in three different directions along the clamping base 1335, and the end is a blind end, and the at least three different directions are axial, circumferential, and axial respectively, so that the end of the hook assembly connected to the positioning pin 1333 can be assembled inside the clamping base 1335 along the axial direction of the clamping base 1335, and then rotated along the circumferential direction of the clamping base 1335 until it is axially displaced again to the end of the limiting connection groove 13351, at this time, the limiting connection groove 13351 limits the positioning pin 1333 to prevent it from circumferential position displacement.

[0062] Furthermore, the rear end of the clamping base 1335 accommodates the output end of the transmission shaft, and the connection position between the output end of the transmission shaft and the output end of the transmission shaft is fixed by a connecting piece. The elastic body 1334 is accommodated in the interior of the clamping base 1335, and the two ends are respectively matched with the hook assembly and the output end of the transmission shaft. Under the action of the hook assembly and the output end of the transmission shaft, the elastomer 1334 undergoes elastic deformation, and the elastic force of the elastomer 1334 transmits the axial force of the groove wall at the end of the limiting connection groove 13351 to the locating pin 1333, so that the locating pin 1333 is firmly limited at the end of the limiting connection groove 13351 without axial shaking. Once the transmission assembly 12 drives the clamping base 1335 to rotate, the elastic member 1334 can resist the torque generated during the rotation process to ensure that the hook assembly and the clamping base 1335 will not be shifted in relative position due to the rotational movement.

[0063] In some preferred embodiments, the limiting connection groove 13351 includes a first limiting connection groove 133511, a second limiting connection groove 133512, and a third limiting connection groove 133513. The first limiting connection groove 133511 is axially connected to the second limiting connection groove 133512, the second limiting connection groove 133512 is circumferentially connected to the third limiting connection groove 133513, and the blind end of the third limiting connection groove 133513 extends axially toward the front end. Accordingly, when one end of the hook assembly is assembled in the clamping base 1335 and the positioning pin When 1333 is limited at the blind end of the third limiting connecting groove 133513, the elastomer 1334 is compressed between the hook assembly and the output end of the transmission shaft. Under the elastic force of the elastomer 1334, the hook assembly is always displaced along its axial direction toward the outside of the clamping base 1335. Since the elastic force of the elastomer 1334 is consistent with the direction of the pulling force applied by another clamping unit arranged oppositely, the accuracy of the assembly position between the hook assembly and the clamping base 1335 can be guaranteed, avoiding the relative displacement of the assembly position due to the pulling force of clamping the fake bait, thereby ensuring the accuracy of clamping.

[0064] Of course, if the blind end of the third limiting connecting groove 133513 is extended axially toward the outer end, the elastomer 1334 is stretched between the hook assembly and the output end of the transmission shaft, and the stability of the connection between the hook assembly and the clamping base 1335 can also be achieved. However, once the fake bait is clamped in the same group of clamping kits 13, the clamping units arranged opposite to each other will change the assembly position of the hook assembly and the clamping base 1335 due to the inconsistent pulling force of their respective elastomers 1334. This change in assembly position has no effect on the clamping kit 13 of only this group of spraying. However, in order to achieve batch processing, a plurality of the clamping kits are usually arranged along the X direction on the substrate 11, which are used to clamp a plurality of fake baits for simultaneous spraying. Once the assembly position of each group is changed, the clamping positions of the plurality of fake baits will be uneven, which will directly affect the spraying quality.

[0065] In some preferred embodiments, the elastic body 1334 is a spring, or may be an elastic component in the form of rubber, a balloon, etc., and the specific form is not further limited here.

[0066] In some preferred embodiments, in order to facilitate disassembly, the positioning pin 1333 and the hook assembly are detachably connected, and one end of the hook assembly is provided with a first base connecting hole 13323 running along its diameter, and the positioning pin 1333 is detachably connected to the first base connecting hole 13323.

[0067] In some preferred embodiments, in order to further increase the flexibility of the structure, the hook assembly adopts a detachable structure, and the hook assembly includes a detachably connected positioning connector 1330, a limiting hook 1331, and a connecting base 1332. The outer surface of the connecting base 1332 at one end facing away from the positioning pin 1333 is provided with a limiting groove 13321. One end of the limiting hook 1331 is coaxially connected to the limiting groove 13321 of the connecting base 1332, and its axial and radial displacements are limited by the inner wall of the limiting groove 13321. The other end of the limiting hook 1331 extends outward along its axial direction in a hook shape, which is used to hook the connecting ring of the lure.

[0068] In some preferred embodiments, a second base connecting hole 13322 is provided in the middle of the limiting groove 13321 and penetrates therethrough in a radial direction. One end of the positioning connecting member 1330 passes through the limiting hook 1331 in a radial direction of the connecting base 1332 and is connected to the second base connecting hole 13322, so as to fix the connection position between the limiting hook 1331 and the connecting base 1332 and avoid circumferential position displacement of the limiting hook 1331.

[0069] Specifically, the limiting groove 13321 includes a first groove 133210 and a second groove 133211. The first groove 133210 is connected to the second groove 133211 along its axial direction. The end of the second groove 133211 is a blind end. The distance l1 between the two inner walls of the first groove 133210 is smaller than the distance l2 between the two inner walls of the second groove 133211. Accordingly, the end side wall of the limiting hook is stepped and matched with the inner wall of the limiting groove 13321, so as to limit the end of the limiting hook 1331 through the limiting groove 13321.

[0070] In some preferred embodiments, the bottom surface of the limiting groove 13321 is flat, and correspondingly, the end of the limiting hook 1331 is flat, so as to increase the stability of the connection.

[0071] In some preferred embodiments, the limiting hook 1331 is a long, wide-width plate structure, and the end of the limiting hook 1331 is bent into a hook shape toward the side within the width. The plane where the width is located serves as a reference plane for clamping and positioning, and is used as a reference plane for the clamping end of the hook assembly to facilitate calibration of the installation position.

[0072] For ease of description, in this specification, the Y-axis represents the length direction of the limit hook (i.e., the extension direction of the limit hook from one end to the other end), the X-axis represents the width direction of the limit hook (i.e., the maximum dimension of the cross section of the limit hook perpendicular to the length direction), and the Z-axis represents the thickness direction of the limit hook.

[0073] Specifically, Figure 6 As shown, the limiting hook 1331 is an integrated plate structure extending along the Y-axis direction and having thickness along the Z-axis direction, and includes a handle 13312 and a hook portion 13313. The handle 13312 is a long, wide-surface plate structure, and its wide surface can be used as a positioning reference surface when the limiting hook is installed in the limiting groove 13321. One end of the hook portion 13313 is connected to the handle 13312, and the other end is bent into a hook shape along the wide surface of the handle 13312 toward its side, that is, the hook portion 13313 is in a U-shape on the XY plane, so as to be matched and connected with the circular hanging rings 9a at both ends of the lure 9.

[0074] Specifically, the handle 13312 includes a connecting section 13312-1, a main section 13312-2 and a tail section 13312-3. The connecting section 13312-1 is located at the end of the handle 13312 away from the hook portion 13313, and is used to fix the limit hook on the clamp device; the tail section 13312-3 is located at the end of the handle 13312 close to the hook portion 13313, and its width gradually decreases along the Y-axis direction, and its narrower end is adjacent to the hook portion 13313, so as to reserve space for the bending of the hook portion 13313, so that when the hook portion 13313 is connected to the circular hanging ring 9a, the center O of the circular hanging ring 9a is on the axis l of the limit hook.

[0075] Furthermore, the hooking portion 13313 includes a root 13313-1, a bent portion 13313-2 and a tip 13313-3, wherein the root 13313-1 is connected to the handle 13312 and extends along the Y-axis direction; the tip 13313-3 extends in a direction inclined at an angle α with the negative Y-axis. If the angle α is too small, it is not convenient for the tip 13313-3 to be hooked with the circular hanging ring 9a. If the angle α is too large, it is easy for the hanging ring to slip out of the limiting hook when the lure rotates. Preferably, the angle α is in the range of 30-50°; the two ends of the bent portion 13313-2 are respectively connected to the root 13313-1 and the tip 13313-3.

[0076] Furthermore, the inner side surfaces of the root 13313-1, the curved portion 13313-2 and the tip 13313-3 close to the circular hanging ring 9a are respectively a vertical surface 13313-1a, an inner curved surface 13313-2a and an inclined surface 13313-3a, and the three surfaces together constitute a limiting connection surface for the circular hanging ring 9a, wherein the two sides of the inner curved surface 13313-2a are respectively tangent to the vertical surface 13313-1a and the inclined surface 13313-3a, and the vertical surface 13313-1a is parallel to the YZ plane and is used to orient the hanging ring and assist in limiting when connected to the circular hanging ring 9a; when the inner curved surface 13313-2a is observed in the positive direction of the Y axis, the inner curved surface 13313-2a is an arc-shaped curved surface structure, specifically, as Fig. 9 and Fig.10 As shown, the arc-shaped curved surface structure specifically refers to a structure in which the intersection line A1 of the inner curved surface 13313-2a and the XY plane is an arc and the intersection line A2 of the inner curved surface 13313-2a and the YZ plane is a straight line. Preferably, the intersection line A1 is consistent with the cross-sectional circular curvature of the circular hanging ring 9a. When the circular hanging ring 9a is connected to the limiting hook described in the present application, the circular hanging ring 9a is inserted by the tip 13313-3, and its clamping direction is first limited so that the circular hanging ring 9a moves along the extension direction of the vertical surface 13313-1a, and then is clamped into the inner curved surface 13313-2 that matches it to achieve precise positioning during clamping.

[0077] In some preferred embodiments, the applicant further optimizes the structure of the inner curved surface 13313-2a, such as Figures 11 to 13 As shown, when the inner curved surface 13313-2a is observed in the positive direction of the Y axis, the inner curved surface 13313-2a is in a saddle surface structure, that is, a parabola with an opening upward is constructed on the XY plane, and then a parabola with an opening downward is constructed on the YZ plane, the tops of the two parabolas overlap at one point, and then the first parabola is allowed to slide on the other parabola to form a saddle surface; preferably, the intersection line A1 of the inner curved surface 13313-2a and the XY plane is an arc line consistent with the cross-sectional circular curvature of the circular hanging ring 9a, and the intersection line A2 of the inner curved surface 13313-2a and the YZ plane is an arc line consistent with the inner circular curvature of the circular hanging ring 9a; the saddle surface structure of the inner curved surface 13313-2a forms a surface contact with the circular hanging ring 9a, and the line contact between the arc-shaped curved surface structure and the circular hanging ring 9a further improves the connection stability between the two. .

[0078] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications may be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A clamping unit that is easy to disassemble and replace, characterized in that: include: The positioning pin (1333) and the coaxially connected hook assembly, elastic body (1334), and clamping base (1335) are The positioning pin (1333) is connected to the end of the hook assembly and extends radially outward along the hook assembly; The front end of the hook assembly is used to clamp the material pulled along its axial direction, and the end of the hook assembly is detachably connected to the front end of the clamping base (1335) along the axial direction and rotated to lock the positioning pin (1333) to the side wall of the clamping base (1335); The elastomer (1334) is accommodated inside the clamping base (1335), and under the action of the hook assembly, axial compression deformation occurs inside the clamping base (1335), and the elastic force of the elastomer (1334) continuously transmits the force of locking the positioning pin (1333) on the side wall of the clamping base (1335).

2. The clamping unit that is easy to disassemble and replace according to claim 1 is characterized in that: The front edge of the hook assembly extends axially outward in a hook shape and is used as a clamping end. The other end of the hook assembly is connected to a positioning pin (1333) that penetrates radially thereof. One end of the hook assembly connected to the positioning pin (1333) is detachably connected to the front end of the clamping base (1335), and both ends of the positioning pin (1333) pass through the side walls of the clamping base (1335).

3. The clamping unit that is easy to disassemble and replace according to claim 2 is characterized in that: The end side wall of the front end of the clamping base (1335) is provided with two centrally symmetrical limiting connection grooves (13351), and the limiting connection grooves (13351) are at least arranged to extend along three different directions of the clamping base (1335), and the ends are blind ends, and the at least three different directions are axial, circumferential, and axial, respectively.

4. The clamping unit that is easy to disassemble and replace according to claim 3 is characterized in that: The rear end of the clamping base (1335) accommodates the output end of the transmission shaft, and the connection position between the clamping base and the output end of the transmission shaft is fixed by a connecting piece, so that the rear end of the clamping base (1335) can block the displacement of the elastic body (1334); The two ends of the elastic body (1334) are respectively matched with the hook assembly and the output end of the transmission shaft. Under the action of the hook assembly and the output end of the transmission shaft, the elastic body (1334) undergoes compression deformation along its axial direction, and the elastic force of the elastic body (1334) transmits the axial force of the groove wall at the end of the limiting connection groove (13351) to the positioning pin (1333).

5. The clamping unit that is easy to disassemble and replace according to claim 4 is characterized in that: The limiting connecting groove (13351) includes a first limiting connecting groove (133511), a second limiting connecting groove (133512), and a third limiting connecting groove (133513); the first limiting connecting groove (133511) is axially connected to the second limiting connecting groove (133512); the second limiting connecting groove (133512) is circumferentially connected to the third limiting connecting groove (133513); and the blind end of the third limiting connecting groove (133513) extends axially toward the front end.

6. The clamping unit that is easy to disassemble and replace according to claim 6 is characterized in that: The hook assembly and the clamping base (1335) are coaxially arranged, and the clamping center of the hook assembly clamping base (1335) is located on the axis of the hook assembly.

7. The clamping unit that is easy to disassemble and replace according to claim 1 is characterized in that: The hook assembly comprises a detachably connected positioning connector (1330), a limiting hook (1331), and a connecting base (1332); a limiting groove (13321) is provided on the outer surface of one end of the connecting base (1332) facing away from the positioning pin (1333); the end of the limiting hook (1331) is coaxially connected to the limiting groove (13321) of the connecting base (1332), and its axial and radial displacements are limited by the inner side wall of the limiting groove (13321); One end of the positioning connector (1330) passes through the end of the limiting hook (1331) along the radial direction of the connecting base (1332) and is connected to the middle of the limiting groove (13321) to limit the circumferential displacement of the limiting hook (1331).

8. The clamping unit that is easy to disassemble and replace according to claim 6 is characterized in that: The limiting groove (13321) includes a first groove (133210) and a second groove (133211), the first groove (133210) is connected to the second groove (133211) along its axial direction, the end of the second groove (133211) is a blind end, the distance l1 between the two inner walls of the first groove (133210) is smaller than the distance l2 between the two inner walls of the second groove (133211), and accordingly, the end side wall of the limiting hook is stepped and adapted to the inner wall of the limiting groove (13321).

9. The clamping unit that is easy to disassemble and replace according to claim 6 is characterized in that: The limiting hook (1331) is a long, wide plate-like structure, comprising a handle (13312) and a hooking portion (13313) which are sequentially connected along the Y-axis direction; The hooking portion (13313) is shaped like a U on the XY plane, so as to be matched and connected with the circular hook ring (9a) of the lure (9); The inner wall of the hooking portion (13313) is provided with a limiting connection surface, and the limiting connection surface is bent into a hook shape toward the side inside the web, and the plane where the web is located serves as a reference plane for clamping and positioning.

10. The clamping unit that is easy to disassemble and replace according to claim 6, characterized in that: The limiting connection surface includes an inner curved surface (13313-2a), and a vertical surface (13313-1a) tangent to one side of the inner curved surface (13313-2a) and extending along the Y-axis direction, so as to limit the connection position of the circular hanging ring (9a) at the hooking portion (13313); When the inner curved surface (13313-2a) is observed in the positive direction of the Y-axis, the inner curved surface (13313-2a) is an arc-shaped curved surface structure or a saddle-shaped surface structure.

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