Chuck fixing structure

Abstract

The utility model discloses a chuck fixing structure, including needle bar clamping subassembly and spanner, the one end of handle is equipped with mounting hole, needle bar clamping subassembly sets up in mounting hole, round bar is installed on needle bar clamping subassembly through spanner, through setting installation cover, elastic cover and extruding cover, through using spanner drive extruding cover and elastic cover to the inboard movement of installation cover, realize the clamping of elastic cover to round bar, even if the very small force of the weaver, through installing spanner also can be very easy and fast, and firm and reliable dismounting changes round bar, convenient to use, the utility model discloses a chuck fixing structure can be easily and quickly dismounted and changed needle head to overcome the defect of the prior art.

Description

Technical Field

[0001] This utility model relates to a clamp fixing structure. Background Technology

[0002] On the market, needles with a diameter of 2.0mm or less do not have threads. They cannot be quickly disassembled or reassembled. The needle and handle are glued together. If the needle breaks, or if a different size hook needle is needed, a professional is required to carefully heat the joint between the needle tail and the handle to soften the glue, then use pliers to quickly pull the needle out.

[0003] Traditional methods are time-consuming and labor-intensive. Many crochet hook handles are made of wood, resin, or plastic, which can easily cause the handle to crack and become unusable during the baking process, resulting in significant waste. Moreover, micro crochet hooks with a tip smaller than 0.8mm are extremely prone to breakage during crocheting, making the replacement of hook tips a persistent problem.

[0004] Therefore, a clamp fixing structure is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the existing defects and provide a clamp fixing structure that allows for easy and quick disassembly and replacement of needles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamp fixing structure, including a needle bar clamping assembly and a wrench; a mounting hole is opened at one end of the handle, the needle bar clamping assembly is disposed in the mounting hole, and the round rod is mounted on the needle bar clamping assembly through the wrench.

[0007] Preferably, the needle bar clamping assembly includes a mounting sleeve and an elastic component. The mounting sleeve is disposed within the mounting hole. The elastic component includes an elastic sleeve and a compression sleeve. The surface of the elastic sleeve has an elastic groove. The center of the elastic sleeve and the compression sleeve are respectively provided with a first fixing hole and a second fixing hole. The surface of the round rod is movably connected within the first fixing hole and the second fixing hole. The surface of the compression sleeve is threadedly connected within the mounting sleeve. The end face of the elastic sleeve contacts the end face of the compression sleeve. The elastic sleeve is located within the mounting sleeve.

[0008] Preferably, the mounting sleeve has a circular hole, the bottom of the circular hole has a tapered hole that matches the bottom of the elastic sleeve, and the upper end of the circular hole has a threaded part that is threadedly connected to the compression sleeve.

[0009] Preferably, the outer wall of the mounting sleeve is provided with multiple anti-slip grooves.

[0010] Preferably, the compression sleeve has multiple slots evenly distributed around its circumference on the side facing away from the mounting sleeve, the wrench has a through hole in its middle, and multiple locking blocks are evenly distributed around the inner wall of the through hole. The number of slots is the same as the number of locking blocks, and one end of each locking block protrudes to the side wall of the wrench.

[0011] Preferably, the surface of the round rod is provided with a hardening coating, which is one of titanium nitride coating, titanium carbonitride coating, titanium aluminum nitride coating, diamond-like carbon coating, or diamond coating.

[0012] Preferably, the round rod can be a hook hook.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This clamp fixing structure, by setting an installation sleeve, an elastic sleeve and a compression sleeve, uses a wrench to drive the compression sleeve and the elastic sleeve to move inward to the installation sleeve, so that the elastic sleeve clamps the round rod. Even a weaver with little strength can easily, quickly and reliably disassemble and replace the round rod with an installation wrench, making it convenient to use. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is an overall schematic diagram of the clamp fixing structure of this utility model; Figure 2 This is a split diagram of the clamp fixing structure of this utility model; Figure 3 This is a sectional view of the mounting sleeve in the clamp fixing structure of this utility model; Figure 4 This is a combined diagram of the elastic sleeve and the compression sleeve of this utility model; Figure 5 This is a schematic diagram of the needle bar clamping assembly for this utility model; Figure 6 This is a schematic diagram of the structure of this practical wrench.

[0015] In the diagram: 1. Handle; 101. Mounting hole; 2. Needle bar clamping assembly; 201. Mounting sleeve; 202. Round hole; 203. Elastic sleeve; 204. Elastic groove; 205. Compression sleeve; 206. Second fixing hole; 207. First fixing hole; 208. Round rod; 209. Threaded part; 210. Tapered hole; 211. Slot; 3. Wrench; 301. Through hole; 302. Locking block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-6 As shown, a clamping structure includes a needle bar clamping assembly 2 and a wrench 3; one end of the handle 1 has a mounting hole 101, the needle bar clamping assembly 2 is disposed in the mounting hole 101, and the round rod 208 is mounted on the needle bar clamping assembly 2 by the wrench 3. The round rod 208 can be a hook needle, but is not limited to a hook needle, and can also be a product such as a drill bit.

[0018] Specifically, the needle bar clamping assembly 2 includes a mounting sleeve 201 and an elastic component. The mounting sleeve 201 is disposed in the mounting hole 101. The elastic component includes an elastic sleeve 203 and a compression sleeve 205. An elastic groove 204 is formed on the surface of the elastic sleeve 203. A first fixing hole 207 and a second fixing hole 206 are respectively provided through the center of the elastic sleeve 203 and the compression sleeve 205. The surface of the round rod 208 is movably connected in the first fixing hole 207 and the second fixing hole 206. The surface of the compression sleeve 205 is threadedly connected to the mounting sleeve 201. The end face of the elastic sleeve 203 contacts the end face of the compression sleeve 205. The elastic sleeve 203 is located in the mounting sleeve 201.

[0019] A preferred option is to integrate the compression sleeve 205 and the elastic sleeve 203 in the elastic assembly as a single unit, which reduces the number of parts. See details... Figure 4 .

[0020] Specifically, the mounting sleeve 201 has a circular hole 202 inside, the bottom of the circular hole 202 has a tapered hole 210 that matches the bottom of the elastic sleeve 203, and the upper end of the circular hole 202 has a threaded part 209, which is threadedly connected to the compression sleeve 205. (See reference) Figure 2 , Figure 2 The example shows three. During installation, it can extend into the mounting hole 101, and the compression sleeve 205 can be completely screwed into the mounting hole 101.

[0021] Specifically, the outer wall of the mounting sleeve 201 is evenly provided with multiple anti-slip grooves, which makes the mounting sleeve 201 fit more securely in the mounting hole 101.

[0022] Specifically, during installation, the tail of the round rod 208 is inserted into the first fixing hole 207 and the second fixing hole 206. The elastic sleeve 203 is inserted into the mounting sleeve 201, and then the compression sleeve 205 is screwed into the mounting sleeve 201. The wrench 3 is inserted, and the round rod 208 passes through the through hole 301. The locking blocks 302 correspond to their respective locking grooves 211. At this time, the wrench 3 is rotated, and the wrench 3 drives the compression sleeve 205 to rotate. The threads and threaded part 209 on the outside of the compression sleeve 205 are connected to each other. The compression sleeve 205 drives the elastic sleeve 203 to move into the mounting sleeve 201 until the tapered shape at the bottom of the elastic sleeve 203 and the tapered hole 210 match and compress the elastic groove 204. At this time, the first fixing hole 207 compresses the round rod 208 inward. The round rod 208 is then fixed in the first fixing hole 207. During disassembly, the compression sleeve 205 can be rotated in the opposite direction by the wrench 3.

[0023] Specifically, the surface of the round rod 208 is coated with a hardening coating, which is one of titanium nitride, titanium carbonitride, titanium aluminum nitride, diamond-like carbon, or diamond. This makes the needle surface smoother, significantly improving the needle's wear resistance, bending strength, and fracture strength, and greatly extending the needle's lifespan.

[0024] Specifically, the elastic component can be exposed on the end face of the handle or hidden inside the handle. If the elastic component is not exposed, the shape of the handle can be designed more freely, perfectly conforming to the shape of the fingers to grip, so that even after a long period of use, the hand will not get tired.

[0025] This clamp fixing structure, by setting up an installation sleeve 201, an elastic sleeve 203, and a compression sleeve 205, allows the compression sleeve 205 and the elastic sleeve 203 to move inward toward the installation sleeve 201 using a wrench 3, thereby clamping the round rod 208 with the elastic sleeve 203. Even a woman with little strength can easily, quickly, and reliably disassemble and replace the round rod 208 using the installation wrench 3, making it convenient to use.

[0026] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamp fixing structure, characterized in that, It includes a needle bar clamping assembly (2) and a wrench (3); one end of the handle (1) has a mounting hole (101), the needle bar clamping assembly (2) is disposed in the mounting hole (101), and the round rod (208) is mounted on the needle bar clamping assembly (2) through the wrench (3).

2. The clamp fixing structure according to claim 1, characterized in that, The needle bar clamping assembly (2) includes a mounting sleeve (201) and an elastic component. The mounting sleeve (201) is disposed in the mounting hole (101). The elastic component includes an elastic sleeve (203) and a compression sleeve (205). An elastic groove (204) is provided on the surface of the elastic sleeve (203). A first fixing hole (207) and a second fixing hole (206) are respectively provided through the center of the elastic sleeve (203) and the compression sleeve (205). The surface of the round rod (208) is movably connected in the first fixing hole (207) and the second fixing hole (206). The surface of the compression sleeve (205) is threadedly connected in the mounting sleeve (201). The end face of the elastic sleeve (203) contacts the end face of the compression sleeve (205). The elastic sleeve (203) is located in the mounting sleeve (201).

3. The clamp fixing structure according to claim 2, characterized in that, The mounting sleeve (201) has a round hole (202) inside. The bottom of the round hole (202) has a tapered hole (210) that matches the bottom of the elastic sleeve (203). The upper end of the round hole (202) has a threaded part (209) that is threaded to the compression sleeve (205).

4. The clamp fixing structure according to claim 2, characterized in that, The outer wall of the mounting sleeve (201) is provided with multiple anti-slip grooves.

5. The clamp fixing structure according to claim 2, characterized in that, The compression sleeve (205) has multiple slots (211) evenly distributed around its circumference on one side away from the mounting sleeve (201). The wrench (3) has a through hole (301) in the middle. Multiple blocks (302) are evenly distributed around the inner wall of the through hole (301). The number of slots (211) is the same as the number of blocks (302). One end of the block (302) protrudes to the side wall of the wrench (3).

6. The clamp fixing structure according to claim 1, characterized in that, The surface of the round rod (208) is provided with a hardening coating, which is one of titanium nitride coating, titanium carbonitride coating, titanium aluminum nitride coating, diamond-like carbon coating or diamond coating.

7. The clamp fixing structure according to claim 1, characterized in that, The round rod (208) can be a crochet hook.

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