Pull cylinder structure
By designing a bundle strip threader in the pull tube and using a runner to drive the bundle strips to pass out, the problems of cumbersome operation and needle breakage of the traditional pull tube are solved, and the bundle strips can be passed through quickly and conveniently.
Patent Information
- Application Number
- CN202421184103.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-28
AI Technical Summary
When the traditional pull-up tube is penetrated, needles are needed to assist in the threading of the bundle. It is cumbersome and laborious, and there is a risk of breakage when using thinner needles.
A pulling tube structure is designed that includes the main body of the pulling tube, the strap guide rod and the strap threading device. The strap threading device is composed of a support, a runner and a spring. The runner drives the strapping strips to pass through the pulling tube through rotation. .
By setting up the runner, the bundle strip can be quickly and conveniently passed through the pull tube without using a needle for assistance, thus avoiding cumbersome operation and the risk of needle breakage.
Smart Images

Figure CN222374931U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of textile tools, in particular to a pull tube structure. Background Art
[0002] When hemming the cloth, it is necessary to use a pull tube structure to fold the straps to facilitate subsequent sewing. Before sewing, the straps need to be passed through the pull tube. The currently commonly used method of threading the straps is generally to insert the straps first, and then use a needle-like tool to reach into the pull tube to push the straps out of the pull tube outlet. The operation is cumbersome and laborious, and there is a risk of breakage when using a thinner needle. In view of the above defects, the present application is proposed. Utility Model Content
[0003] The utility model aims to provide a pull tube structure, which solves the problem of cumbersomeness and low efficiency caused by the need to use a needle to assist in the insertion of bundle strips in the traditional pull tube.
[0004] In order to solve the above problems, the utility model provides a pull-cylinder structure, including a pull-cylinder body, a strap guide rod and a strap threader, the strap threader including a support, a rotating wheel and a spring, the rotating wheel is installed on a slider, the support is provided with a groove for the slider to slide, the spring is connected to the slider, the pull-cylinder body is provided with a through hole, the rotating wheel can enter the pull-cylinder body through the through hole, the rotating wheel is pressed to make it contact with the strap, and the rotating wheel is rotated to drive the strap to pass out.
[0005] According to an embodiment of the utility model, an anti-slip structure is provided on the outer circumferential surface of the rotating wheel.
[0006] According to an embodiment of the utility model, the spring is connected to the inner side of the slider and is used to push the rotating wheel out of the pull cylinder body.
[0007] According to an embodiment of the utility model, the spring is connected to the outer side of the slider and is used to push the rotating wheel into the pull cylinder body.
[0008] According to an embodiment of the utility model, the strapping tube threader further includes a locking assembly, and the locking assembly is used to fix the position of the rotating wheel.
[0009] According to an embodiment of the utility model, the locking assembly includes a locking pin and a locking hole, and the locking hole is respectively arranged on the support member and the sliding block.
[0010] According to an embodiment of the utility model, the support member is installed on the pull cylinder body through a rotating member.
[0011] According to an embodiment of the utility model, the strapping guide rod is installed in a detachable manner.
[0012] According to an embodiment of the utility model, a plug hole is provided on the pull cylinder body, and a plug is connected to the end of the strapping guide rod.
[0013] According to an embodiment of the utility model, the pull tube body is a single-sided pull tube or a double-sided pull tube.
[0014] The beneficial effect of the utility model is that by setting a rotating wheel, when performing the operation of threading the strap, the rotating wheel can be pressed to make it contact with the strap, and the rotating wheel is rotated to drive the strap to pass through the outlet end of the pull tube body, thereby achieving the effect of assisting the strap to pass through the pull tube quickly and conveniently without the need for a needle for assistance. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0016] Figure 1 It is the overall structural diagram of the pull tube structure;
[0017] Figure 2 It is a schematic diagram of the structure of the bundle tube threader. DETAILED DESCRIPTION
[0018] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.
[0019] [Example 1]
[0020] Pull tube structure, such as Figure 1 , including a pull tube body 1, a strap guide rod 2 and a strap threader 4, as shown Figure 2 The strap threader 4 includes a support 42, a rotating wheel 41 and a spring 46. The rotating wheel 41 is installed on a slider 45. A groove for the slider 45 to slide is provided in the support 42. The spring 46 is connected to the slider 45. A through hole 3 is provided on the pull tube body 1. The rotating wheel 41 can enter the pull tube body 1 through the through hole 3. The rotating wheel 41 is pressed to make it contact with the strap. The rotating wheel 41 is rotated to drive the strap to pass through the outlet end 11 of the pull tube body 1.
[0021] Preferably, the through hole 3 is shaped as Figure 1 As shown, a long strip area is also included, which is used to assist with the use of a needle when it is difficult to achieve the effect of strip threading using a rotating wheel.
[0022] A connecting plate 43 is connected to the bottom of the support member 42, and the connecting plate 43 is installed on the pull cylinder body 1 by using screws. The outer circumferential surface of the rotating wheel 41 is provided with an anti-skid structure, and the anti-skid structure generally adopts anti-skid ridges arranged along the circumferential surface. The rotating wheel 41 is generally made of plastic. Optionally, a spring 46 can be connected to the inner side or outer side of the slider 45, and the effects of the two sides are respectively used to push the rotating wheel 41 out of the pull cylinder body 1 and to push the rotating wheel 41 into the pull cylinder body 1. In this embodiment, the spring is arranged on the inner side of the slider 45, such as Figure 2 In the unpressed state, the rotating wheel 41 is outside the pull tube body 1. After the strap is passed around the strap guide rod 2, it is inserted into the pull tube body 1. The rotating wheel 41 is pressed to make it contact with the cloth, and then the rotating wheel 41 is rotated to drive the strap to pass through the outlet end 11 of the pull tube body 1.
[0023] Optionally, the support member 42 is mounted on the connecting plate 43 via a rotating member 44, and the rotating member 44 may be a hinge. When the strapping tube threader 4 is blocked during sewing, such as Figure 1 The strapping tube-threading device 4 can be rotated upwards, or the screws on the connecting plate 43 can be directly unscrewed and removed.
[0024] In this embodiment, the strapping guide rod 2 is detachably installed, and the strapping guide rod 2 with a suitable length and spacing can be selected according to the thickness and material of the fabric. Specifically, Figure 1 A socket 12 is provided on the pull tube body 1, and a plug is connected to the end of the bundle guide rod 2. The plug and the socket 12 are interference fit or fixed by screws.
[0025] The pull tube body 1 can be a single-sided pull tube or a double-sided pull tube.
[0026] Embodiment 2 is different from Embodiment 1 in that, in this embodiment, a spring is arranged on the outside of a slider 45. When not pressed, the rotating wheel 41 is in contact with the cloth inside the pull tube body 1 under the action of the spring. When threading the cloth, the rotating wheel 41 needs to be lifted first. After the strap is passed through, during the hemming sewing process, the rotating wheel 41 continues to contact and roll with the center line of the cloth to achieve the effect of assisting the subsequent folding of the strap. Preferably, the rotating wheel 41 is arranged to be gradually thinner from the inside to the outside.
[0027] Embodiment 3, on the basis of embodiment 2, in order to adapt to different thicknesses of fabrics and achieve the effect of assisting the pulling of the tube, the strapping tube threader 4 also includes a locking assembly, which can be a bolt, which is mounted on the support 42, one end of which is located in the groove, and the bolt is rotated to press the slider 45 for adjustment. In this embodiment, the locking assembly is used to fix the position of the rotating wheel 41, such as Figure 2The locking assembly includes a locking pin and a locking hole. The locking holes are respectively arranged on the support member 42 and the slider 45, namely, locking hole 1 47 and locking hole 2 48. After adjusting the rotating wheel 41 to a suitable height, the locking hole 1 47 and the locking hole 2 48 are aligned, and the locking pin is inserted to lock the position.
[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.
Claims
1. Pull-tube structure, characterized by: The invention comprises a pull-bar body (1), a strap guide rod (2) and a strap threader (4), wherein the strap threader (4) comprises a support member (42), a rotating wheel (41) and a spring (46), wherein the rotating wheel (41) is mounted on a slider (45), wherein a groove for the slider (45) to slide is provided in the support member (42), wherein the spring (46) is connected to the slider (45), and wherein a through hole (3) is provided on the pull-bar body (1), wherein the rotating wheel (41) can enter into the pull-bar body (1) through the through hole (3), wherein the rotating wheel (41) is pressed to make it contact with the strap, and wherein the rotating wheel (41) is rotated to drive the strap to pass through.
2. The pull tube structure according to claim 1, characterized in that: The outer circumferential surface of the rotating wheel (41) is provided with an anti-slip structure.
3. The pull tube structure according to claim 2, characterized in that: The spring (46) is connected to the inner side of the slider (45) and is used to push the rotating wheel (41) out of the pull cylinder body (1).
4. The pull tube structure according to claim 2, characterized in that: The spring (46) is connected to the outside of the slider (45) and is used to push the rotating wheel (41) into the pull cylinder body (1).
5. The pull tube structure according to claim 4, characterized in that: The strapping tube threader (4) further comprises a locking assembly, wherein the locking assembly is used to fix the position of the rotating wheel (41).
6. The pull tube structure according to claim 5, characterized in that: The locking assembly comprises a locking pin and a locking hole, wherein the locking holes are respectively arranged on the support member (42) and the sliding block (45).
7. The pull tube structure according to claim 1, characterized in that: The support member (42) is mounted on the pull tube body (1) via a rotating member (44).
8. The pull tube structure according to any one of claims 1 to 4, characterized in that: The strapping guide rod (2) is detachably mounted.
9. The pull tube structure according to claim 8, characterized in that: The pull tube body (1) is provided with a plug hole (12), and the end of the strapping guide rod (2) is connected with a plug.
10. The pull tube structure according to claim 1, characterized in that: The pull tube body (1) is a single-sided pull tube or a double-sided pull tube.