Adjustable spool

Abstract

The adjustable spool comprises a middle cylinder, a flange plate and a fixing seat, a sliding groove is formed in the middle cylinder, a push rod is connected in the sliding groove in a sleeved mode, and one end, located on the periphery of the middle cylinder, of the push rod is connected with an arc-shaped plate used for adjustment through bolts. And an air cushion is connected to the side, located on the push rod, in the sliding groove through gluing. The adjustable spool is simple and compact in structure, low in cost, easy to operate, more flexible and reliable to use and suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field of product packaging, in particular to an adjustable I-shaped wheel. Background Art

[0002] The I-shaped wheel is a tool used to wind metal wires or steel ropes. In the process of packaging metal wires or steel ropes, it can limit the wires from winding around the I-shaped wheel cylinder and prevent them from falling off, so it has been widely used.

[0003] Publication No.: CN206636921U discloses an I-shaped wheel, including a body, the body is a circular tubular structure, the two ends are connected to the flange edge, and the connection between the inner ring of the body and the inner ring of the flange edge is an inclined surface structure. The tooling is directly inserted into the inner ring of the body for matching connection. The setting of the inclined surface structure can improve the matching degree, the connection between the tooling and the body is tighter, and the dynamic balance can be improved during the movement process, and the stability of high-speed operation can be increased.

[0004] At present, the existing I-shaped wheels have the following disadvantages when in use: lack of diameter adjustment mechanism, usually the size of the I-shaped wheels is fixed, resulting in poor flexibility in use for different packaging requirements, and the I-shaped wheels of corresponding sizes need to be replaced. To this end, we propose an adjustable I-shaped wheel. Summary of the invention

[0005] The main purpose of the utility model is to provide an adjustable spool, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An adjustable I-shaped wheel comprises a middle cylinder, a flange and a fixing seat. A sliding groove is provided in the middle cylinder, a push rod is sleeved in the sliding groove, one end of the push rod is located on the periphery of the middle cylinder and is connected to an arc plate for adjustment by bolts, and an air cushion is connected to one side of the push rod in the sliding groove by gluing.

[0008] Furthermore, a fixing seat is fixedly provided on one side of the middle tube, an air outlet end of the fixing seat is connected to the air cushion, an elastic body is provided on one side of the fixing seat, the fixing seat is connected to the elastic body by gluing, and the middle tube is connected to the fixing seat by screws.

[0009] Furthermore, a return spring is provided in the sliding groove on the outer periphery of the push rod.

[0010] Furthermore, a one-way valve is arranged at the air inlet end of the fixing seat, a valve core is arranged on the surface of the fixing seat, and the fixing seat is connected to the one-way valve and the valve core via a slot.

[0011] Furthermore, flanges are provided at both ends of the middle cylinder. The flange includes a reserved hole, and the middle cylinder is connected to the flange by bolts.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By providing the middle cylinder, the sliding groove, the push rod, the arc plate and the air cushion, it is possible to use the inflation to generate deformation to push the arc plate to slide, thereby increasing the use diameter of the spool, so as to adapt to various different packaging requirements. The structure is simple and compact, the cost is low, and the use is more flexible and reliable.

[0014] By providing the fixed seat, the elastic body, the one-way valve and the valve core, the air cushion can be inflated through the elastic deformation generated by manual pressing, and the operation is simple and labor-saving, and the practical value is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. 1 is an overall structural schematic diagram of an adjustable spool of the utility model.

[0016] Figure 2 FIG. 2 is a structural schematic diagram of the middle cylinder and the arc plate of an adjustable spool of the utility model.

[0017] Figure 3 FIG. 3 is a schematic cross-sectional structure diagram of the middle cylinder of an adjustable spool of the utility model.

[0018] Figure 4 FIG. 4 is a structural schematic diagram of the fixed seat of an adjustable spool of the utility model.

[0019] In the figure: 1, middle cylinder; 2, flange; 3, arc plate; 4, sliding groove; 5, push rod; 6, air cushion; 7, fixed seat; 8, elastic body; 9, one-way valve; 10, valve core; 11, return spring; 12, reserved hole. EMBODIMENTS

[0020] In order to make the technical means, creative features, achieving purposes and effects of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0021] As shown in FIGS. Figure 1 、 2 and 3, an adjustable spool includes a middle cylinder 1, a flange 2 and a fixed seat 7. A sliding groove 4 is formed in the middle cylinder 1. A push rod 5 is sleeved and connected in the sliding groove 4. One end of the push rod 5 is located outside the middle cylinder 1 and is connected by bolts with an arc plate 3 for adjustment. An air cushion 6 is adhesively connected to one side of the push rod 5 in the sliding groove 4.

[0022] Among them, a fixed seat 7 is fixedly arranged on one side inside the middle cylinder 1. The air outlet end of the fixed seat 7 is communicated with an air cushion 6, and an elastic body 8 is arranged on one side of the fixed seat 7.

[0023] In this embodiment, as Figure 3 and 4 shown, through the fixed seat 7 and the elastic body 8, it is convenient to use the elastic deformation generated by pressing for manual inflation operation. The structure is simple and compact, the cost is low and easy to operate, and the use is more flexible and convenient.

[0024] Among them, a return spring 11 is sleeved around the push rod 5 inside the sliding groove 4.

[0025] In this embodiment, as Figure 3 shown, it is convenient to use the elastic driving force to drive the push rod 5 to retract for a reset action.

[0026] Among them, a one-way valve 9 is arranged at the air inlet end of the fixed seat 7, and a valve core 10 is arranged on the surface of the fixed seat 7.

[0027] In this embodiment, as Figure 4 shown, through the one-way valve 9 and the valve core 10, it is convenient to control the air inlet and outlet of the air cushion 6.

[0028] Among them, flange plates 2 are arranged at both ends of the middle cylinder 1, and the flange plates 2 include reserved holes 12.

[0029] In this embodiment, as Figure 1 and 2 shown, through the flange plates 2 and the reserved holes 12, it is convenient to be fixedly connected with the middle cylinder 1 by bolts to form an idler wheel for use.

[0030] It should be noted that the present utility model is an adjustable idler wheel. During operation, first, the operator manually presses the elastic body 8 according to the actual packaging needs to generate elastic deformation, sucks external air into the air cushion 6 through the one-way valve 9, and the deformation generated by the inflation of the air cushion 6 pushes the push rod 5 to slide out of the sliding groove 4, driving the arc-shaped plate 3 to slide outward, so that the use diameter of the idler wheel can be increased, greatly improving the flexibility and convenience of use. Then, the middle cylinder 1 and the flange plate 2 are fixedly connected by bolts through the reserved holes 12 for use. After use, the air cushion 6 can be deflated by pulling out the valve core 10, and the elastic driving force of the return spring 11 is used to drive the push rod 5 to retract for a reset action. The overall structure is simple and compact, the cost is low and easy to operate, the use is more flexible and convenient, and the practical value is relatively high.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable spool, comprising a middle cylinder (1), a flange (2) and a fixing seat (7), characterized in that: The middle tube (1) is provided with a sliding groove (4), a push rod (5) is sleeved in the sliding groove (4), one end of the push rod (5) is located at the periphery of the middle tube (1) and is connected to an arc plate (3) for adjustment by bolts, and an air cushion (6) is connected to one side of the push rod (5) in the sliding groove (4) by gluing.

2. The adjustable spool according to claim 1, characterized in that: A fixing seat (7) is fixedly arranged on one side of the middle tube (1); an air outlet end of the fixing seat (7) is connected to the air cushion (6); and an elastic body (8) is arranged on one side of the fixing seat (7).

3. The adjustable spool according to claim 1, characterized in that: A return spring (11) is sleeved on the outer periphery of the push rod (5) in the sliding groove (4).

4. The adjustable spool according to claim 1, characterized in that: A one-way valve (9) is provided at the air inlet end of the fixing seat (7), and a valve core (10) is provided on the surface of the fixing seat (7).

5. The adjustable spool according to claim 1, characterized in that: Both ends of the middle tube (1) are provided with flanges (2), and the flanges (2) include reserved holes (12).

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