Automatic rope braiding device

Abstract

The utility model discloses an automatic rope braiding device which comprises a shell, a rotary drum, a crochet hook, a gear transmission mechanism and a rocking handle, the rotary drum is arranged in a cavity of the shell, the crochet hook is connected to the rotary drum in a sliding mode in the longitudinal direction, and a guide sliding block on the crochet hook is in sliding fit with a guide groove in the wall of the cavity of the shell. The shell is rotationally connected with a rocking handle, the rocking handle drives the rotary drum to rotate through a gear transmission mechanism, the crochet hook slides up and down under the guide of a guide groove in the cavity wall of the shell in the rotating process of the rotary drum, the shell comprises an upper part, a middle part and a lower part, and the upper part is connected with the lower part through the middle part; according to the scheme, the structure of the shell and the butt joint structure of the upper portion, the middle portion and the bottom are improved, the guide groove is formed between the bottom end face of the upper portion and the protruding ring of the middle cavity wall, installation of an internal rotary drum, a gear transmission mechanism and the like is facilitated, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rope braiding devices, in particular to an automatic rope braiding device. Background Art

[0002] In order to improve the efficiency of manual rope braiding, hand-cranked rope braiding machines have appeared on the market. A rotating drum is installed in the shell cavity, and a crank is installed on the shell. The crank is connected to the rotating drum through a transmission mechanism. Multiple hooks are slidably connected to the peripheral wall of the rotating drum. The hooks slide in the guide grooves on the shell cavity wall. The crank is used to drive the rotating drum to rotate, and the hooks are synchronously moved up and down relative to the shell, thereby realizing rope braiding. The defect is that the structural design of the shell is unreasonable, which makes assembly more troublesome and needs to be improved. Utility Model Content

[0003] To solve at least one of the above technical deficiencies, the present invention provides the following technical solutions:

[0004] The present application document discloses an automatic rope braiding device, including a shell, a rotating drum, a hook, a gear transmission mechanism, and a crank. The rotating drum is arranged in the shell cavity and is connected to the hook by longitudinal sliding on the rotating drum. The guide slider on the hook slides with the guide groove on the shell cavity wall. The shell is rotatably connected to the crank and the crank drives the rotating drum to rotate through the gear transmission mechanism. During the rotation of the rotating drum, the hook slides up and down under the guidance of the guide groove on the shell cavity wall. The shell includes an upper part, a middle part and a lower part. The upper part and the lower part are connected by the middle part. A guide groove is formed between the bottom end surface of the upper part and the convex ring convexly formed on the outside of the middle cavity wall.

[0005] In this solution, the structure of the shell is improved, and the upper, middle and bottom parts are butt-jointed, and a guide groove is formed between the upper bottom end surface and the convex ring of the middle cavity wall, which facilitates the installation of the internal rotating drum, gear transmission mechanism, etc. and improves assembly efficiency.

[0006] Furthermore, the upper portion and the middle portion are engaged and fixed, which facilitates assembly and molding.

[0007] Furthermore, the upper part is in the shape of a stepped cylinder, and the middle cavity wall is embedded in the embedded groove formed at the upper step interface. The bottom end of the upper part is in the middle cavity, and the cavity wall is embedded in the embedded groove so that the upper and middle parts are fixed and easy to assemble. The bottom end of the upper part extends into the middle cavity to form a guide groove. This structure facilitates the installation of the rotating drum and the crochet hook.

[0008] Furthermore, a sealing ring is provided between the head end of the drum and the corresponding upper cavity wall to improve the sealing performance and reduce the influence of debris on the gear transmission mechanism.

[0009] Furthermore, the middle molded support ring at the lower part, the bottom end of the rotating drum extends into the ring opening of the support ring and is clearance-fitted, the gear transmission mechanism includes meshing bevel gear 1 and bevel gear 2, the bevel gear 1 is connected to the crank handle, the bevel gear 2 is connected to the rotating drum and the support ring abuts against the bevel gear 2 above it, the support ring can guide the rotation of the rotating drum and improve the stability of the rotation, and after the rotating drum is docked with the upper and middle parts, the lower part can be installed to dock with the middle part, and the rotating drum can be supported by the support ring to facilitate assembly and molding.

[0010] Furthermore, the lower portion and the middle portion are connected via fasteners, thereby improving the stability of the connection.

[0011] Furthermore, it also includes a rope locking mechanism, which includes a main body and a plug plate, a through hole connecting the top end surface and the bottom end surface is provided on the main body, a plug hole is provided on the hole wall of the through hole and the plug hole extends to the circumferential surface of the main body, the plug plate is elastically slidably connected to the plug hole, and a rope threading hole is provided on the plug plate. Under normal conditions, the rope threading hole and the through hole are misaligned and the end of the plug plate extends from the hole mouth of the plug hole. The plug plate is pressed and moved to make the rope threading hole opposite to the through hole. When in use, the plug plate can be moved to make its rope threading hole correspond to the through hole, and then the rope end can be passed through the rope threading hole. When the external force is removed, the plug plate is reset to the initial position where the rope threading hole and the through hole are misaligned, and the rope end is clamped, which is simple and easy to operate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The utility model improves the shell structure of the rope braiding device, which facilitates the installation of the rotating drum and the gear transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

[0015] Figure 1 Schematic diagram of the structure of the automatic rope braiding device in Example 1;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the automatic rope braiding device;

[0017] Figure 3 It is a schematic diagram of the shell decomposition structure;

[0018] Figure 4 It is a structural diagram of the rope locking mechanism;

[0019] Figure 5 It is a structural diagram of the convex ring;

[0020] Figure 6 It is a structural diagram of the plugboard;

[0021] Wherein, the accompanying drawings are marked as follows:

[0022] 1. Housing; 2. Crank handle; 3. Hook; 4. Drum; 5. Sealing ring; 6. Gear drive mechanism; 7. Rope locking mechanism; 10. Upper part; 11. Middle part; 12. Lower part; 13. Guide groove; 31. Guide slider; 61. Bevel gear 2; 62. Bevel gear 1; 71. Main body; 72. Insert plate; 73. Rope hole; 74. Spring; 100. Groove; 101. Bottom end face; 111. Raised ring; 121. Support ring. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 As shown, the automatic rope braiding device in this example includes a housing 1, a rotating drum 4, a hook 3, a gear transmission mechanism 6, and a crank 2. The rotating drum 4 is installed in the cavity of the housing 1. A groove is formed along the axial direction on the circumference of the rotating drum 4. The hook 3 is slidably connected to the groove. A guide slider 31 is provided on the lower part of the hook 3. The guide slider 31 is partially located in the guide groove 13 on the cavity wall of the housing 1 and is clearance-fitted to form a sliding connection. The crank 2 is rotatably connected to the housing 1 and the rotating drum 4 is driven to rotate by the gear transmission mechanism 6. During the rotation of the rotating drum, under the guidance of the guide groove, the hook slides up and down relative to the rotating drum in the longitudinal direction (i.e., axial direction).

[0026] In this example, the shell 1 includes an upper part 10, a middle part 11 and a lower part 12. The upper part 10 and the lower part 12 are connected by the middle part 11. The upper part, the middle part and the lower part are all cylindrical. The upper part 10, the middle part 11 and the lower part 12 are docked and fixed to form the shell 1, wherein a guide groove 13 is formed between the bottom end surface of the upper part 10 and the convex ring 111 convexly formed on the outer wall of the cavity of the middle part 11. If the cavity wall of the middle part 11 is stepped and the convex ring 111 is formed at the step interface, the convex ring is inclined, and the corresponding bottom end surface of the upper part is also inclined. After the upper part and the middle part are docked and fixed, the bottom end of the upper part 10 extends into the cavity of the middle part 11 and a guide groove 13 is formed between the bottom end surface of the upper part 12 and the convex ring 111 at the cavity wall of the middle part 11.

[0027] To facilitate the docking of the upper and middle parts, in this example, the upper part 10 and the middle part 11 are embedded and fixed, wherein the upper part 10 is a stepped cylindrical shape, and an embedded groove 100 is formed inwardly at the upper step interface. When the upper part and the middle part are docked, the cavity wall of the head end of the middle part 11 is embedded in the embedded groove 100 to fix them as a whole, and the bottom end of the upper part 10 extends into the cavity of the middle part 11 to form a guide groove 13 between the bottom end surface 101 and the convex ring 111.

[0028] In this example, the lower part 12 of the shell 1 supports the rotating drum 4, such as a support ring 121 formed at the top surface of the lower part 12 of the shell, and the supporting ring 121 supports the rotating drum 4. Specifically, the gear transmission mechanism is such as the common bevel gear matching type, such as including bevel gear 1 62 and bevel gear 2 61. A hole is formed on the circumferential surface of the middle part 11 of the shell, and the end of the crank handle 2 passes through the hole and the bevel gear 1 62 is sleeved on the end of the crank handle 2. The bottom end of the rotating drum 4 is sleeved with bevel gear 2 61, and the bevel gear 1 62 is meshed with the bevel gear 2 61. A ring body, namely the supporting ring 121, is convexly formed on the top surface of the lower part 12 of the shell, so that the supporting ring abuts against the bevel gear 2 61 to form support for the rotating drum 4. The bottom end of the rotating drum 4 extends into the ring opening of the support ring 121 and the clearance between the circumferential wall of the bottom end of the rotating drum 4 and the ring opening wall is matched.

[0029] When assembling the shell structure, the rotating drum, the crank handle and the gear transmission mechanism are installed in the middle of the shell, and then the lower part of the shell can be installed to form a support limit for the rotating drum, and then the upper part of the shell can be installed.

[0030] As for the fixation of the lower and middle parts of the shell, any method such as interlocking fixation or snap fixation is possible. In this example, screws are used as fasteners for fixation. After the periphery of the top end of the lower part abuts against the corresponding bottom end of the middle part, they can be screwed in axially or radially to fix the middle and lower parts of the shell as one.

[0031] In addition, a sealing ring 5 can be added and put on the head end of the drum 4 so that the sealing ring abuts against the upper cavity wall to form a seal and reduce the entry of debris.

[0032] A rope locking mechanism 7 can also be added, such as Figure 4 、 Figure 6When the handle is cranked, the gear transmission mechanism rotates, and the hook needle slides up and down relative to the shell body under the guidance of the guide groove.

[0033] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic rope braiding device, comprising a housing (1), a rotating drum (4), a hook (3), a gear transmission mechanism (6), and a crank (2), wherein a rotating drum (4) is provided in the cavity of the housing (1) and the rotating drum (4) is connected to the hook (3) by sliding along the longitudinal direction, a guide slider (31) on the hook (3) is slidably matched with a guide groove (13) on the cavity wall of the housing (1), the housing (1) is connected to the crank (2) by rotation and the crank (2) drives the rotating drum to rotate through the gear transmission mechanism (6), and during the rotation of the rotating drum, the hook (3) slides up and down under the guidance of the guide groove (13) on the cavity wall of the housing (1), characterized in that The shell (1) comprises an upper part (10), a middle part (11) and a lower part (12); the upper part (10) and the lower part (12) are connected by the middle part (11); a guide groove (13) is formed between the bottom end surface (101) of the upper part (10) and a convex ring (111) formed on the outer wall of the cavity of the middle part (11).

2. The automatic rope braiding device according to claim 1, wherein: The upper part (10) and the middle part (11) are engaged and fixed.

3. The automatic rope braiding device according to claim 2, wherein: The upper part (10) is in the shape of a stepped cylinder, the cavity wall of the middle part (11) is embedded in the embedded groove (100) formed at the upper step interface, and the bottom end of the upper part (10) is located in the cavity of the middle part (11).

4. The automatic rope braiding device according to claim 1, wherein: A sealing ring (5) is provided between the head end of the rotating drum (4) and the corresponding upper cavity wall.

5. The automatic rope braiding device according to claim 1, wherein: A support ring (121) is formed at the top end of the lower portion (12), and the bottom end of the rotating drum (4) extends into the ring opening of the support ring (121) and is clearance-fitted therewith. The gear transmission mechanism (6) comprises a meshing bevel gear 1 (62) and a bevel gear 2 (61), wherein the bevel gear 1 (62) is connected to the crank handle (2), the bevel gear 2 (61) is connected to the rotating drum (4), and the support ring (121) abuts against the bevel gear 2 (61) above it.

6. The automatic rope braiding device according to claim 1, wherein: The lower part (12) and the middle part (11) are connected via fasteners.

7. The automatic rope braiding device according to claim 1, wherein: The invention also includes a rope locking mechanism (7), which includes a body (71) and an inserting plate (72). The body (71) is provided with a through hole communicating with the top end surface and the bottom end surface. A plug hole is provided at the hole wall of the through hole and the plug hole extends to the peripheral surface of the body. The inserting plate (72) is elastically slidably connected to the plug hole. A rope threading hole (73) is provided on the inserting plate. Under normal conditions, the rope threading hole and the through hole are misaligned and the end of the inserting plate extends from the hole mouth. Pressing and moving the inserting plate makes the rope threading hole face the through hole.

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