Fan base small magnet assembly assembling tool

Abstract

A fan base small magnet assembly assembling tool comprises an outer sleeve and an inner rod, an upper end cover is arranged at the upper end of the outer sleeve, a through hole is formed in the center of the upper end cover, a lower end cover is arranged at the lower end of the outer sleeve, a positioning pipe is coaxially arranged in the lower end cover in a downward extending mode, and the inner rod is coaxially arranged in the outer sleeve. The upper end of the inner rod coaxially extends upwards to be connected with a driving rod, the driving rod penetrates through a through hole in the upper end cover, the lower end of the inner rod coaxially extends downwards to be provided with a pressing rod, the upper portion of the pressing rod is sleeved with a spring, the inner rod is upwards biased through the spring, and the lower end face of the pressing rod is located above the lower end face of the positioning pipe. A workpiece gap is formed between the lower end face of the pressing rod and the lower end face of the positioning pipe, two or more axial cracks are evenly distributed in the side wall of the lower end of the positioning pipe in the circumferential direction, and any axial crack is opened in the lower end face of the positioning pipe. The assembling efficiency of the fan base workpiece is improved, the operation is more convenient, and the installation process is simplified.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a fan assembly tool, and especially to an assembly tool for a small magnet assembly at the base of a fan. Background Art

[0002] A small magnet is fixedly installed at the axis center of the base of some fans to axially fix the steel shaft of the fan blade rotor by magnetic adsorption. A wear-resistant gasket made of graphite is arranged between the small magnet and the end face of the adjacent fan blade rotor steel shaft, and the small magnet and the wear-resistant gasket form a small magnet assembly. A first blind hole is arranged at the axis center of the base of the fan, and a second blind hole is coaxially arranged in the bottom surface of the first blind hole, and the diameter of the second blind hole is smaller than that of the first blind hole. In the prior art, a solid cylindrical steel pressing rod is arranged at the actuating end of a manual press, the small magnet assembly is magnetically adsorbed on the lower end surface of the pressing rod, the manual press is operated, and the small magnet assembly is pressed into the second blind hole of the base, and the small magnet assembly and the base are fixedly connected by interference fit. The manual press occupies a large working space, and during its installation process, it is necessary to accurately adjust the position of the base to make the second blind hole concentric with the pressing rod, and the operation is relatively cumbersome. When the manual press applies too much force, the small magnet will also be broken. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an assembly tool for a small magnet assembly at the base of a fan to solve the problems pointed out in the above background art.

[0004] The present utility model provides an assembly tool for a small magnet assembly of a fan base, which includes an outer sleeve and an inner rod. An upper end cover is arranged at the upper end of the outer sleeve. A through hole is arranged at the center of the upper end cover, and the diameter of the through hole is smaller than the inner diameter of the outer sleeve. A lower end cover is arranged at the lower end of the outer sleeve. A positioning tube extends coaxially downward in the lower end cover, and the diameter of the positioning tube is smaller than the inner diameter of the outer sleeve. The inner rod is coaxially arranged inside the outer sleeve, and the length of the inner rod is smaller than the distance between the upper end cover and the lower end cover. The inner rod and the outer sleeve are arranged as an axial sliding pair. The upper end of the inner rod extends coaxially upward to be connected with a driving rod, and the diameter of the driving rod is smaller than the diameter of the inner rod. The driving rod passes through the through hole in the upper end cover. The lower end of the inner rod extends coaxially downward to be provided with a pressing rod, and the diameter of the pressing rod is smaller than the diameter of the inner rod. The lower end of the pressing rod extends into the positioning tube. A spring is sleeved on the upper part of the pressing rod, and the spring is located between the lower end cover of the outer sleeve and the lower end face of the inner rod. The spring biases the inner rod upward. The lower end face of the pressing rod is located above the lower end face of the positioning tube, and a workpiece gap is arranged between the lower end face of the pressing rod and the lower end face of the positioning tube. Two or more axial cracks are uniformly distributed along the circumferential direction on the lower end side wall of the positioning tube, and any one of the axial cracks opens in the lower end face of the positioning tube.

[0005] In the present utility model, rapid positioning is achieved through the outer sleeve, and rapid installation is carried out by using the inner rod. The cooperation of the middle spring provides rapid resilience, ensuring rapid manual assembly and improving efficiency.

[0006] In an implementation manner of the present utility model, 4 axial cracks are uniformly distributed along the circumferential direction in the lower end side wall of the positioning tube.

[0007] In an implementation manner of the present utility model, the outer sleeve is composed of an upper tube and a lower tube which are threadedly connected axially.

[0008] In an implementation manner of the present utility model, the workpiece gap is greater than or equal to the axial length of the small magnet assembly to be assembled.

[0009] In an implementation manner of the present utility model, a nylon gasket is arranged between the spring and the lower end cover of the outer sleeve.

[0010] In an implementation manner of the present utility model, a nylon gasket is arranged between the inner rod and the upper end cover.

[0011] As described above, the assembly tool for the small magnet assembly of the fan base of the present utility model has the following beneficial effects:

[0012] Compared with the prior art, the assembly tool for the small magnet assembly of the fan base provided by the present utility model realizes quick positioning through an outer sleeve, quick installation by using an inner rod, and provides quick resilience by cooperating with a spring in the middle, ensuring quick assembly during hand-held operation, improving efficiency, achieving the portability of the quick positioning and installation tool, reducing related accessories or dedicated machines, and simplifying the installation process. Brief Description of the Drawings

[0013] Figure 1 It shows a schematic diagram of the overall structure of the assembly tool for the small magnet assembly of the fan base according to the embodiment of the present utility model.

[0014] Figure 2 It shows a schematic diagram of the internal structure of the assembly tool for the small magnet assembly of the fan base according to the embodiment of the present utility model.

[0015] Figure 3 It shows a schematic diagram of the operation process of the assembly tool for the small magnet assembly of the fan base according to the embodiment of the present utility model. Detailed Embodiments

[0016] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0017] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. The drawings only show the components related to the present utility model rather than being drawn according to the number, shape, and size of the components during actual implementation. The type, quantity, and ratio of each component during actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0018] Refer to Figures 1 to 3 The following embodiments of the present utility model provide an assembly tool for the small magnet assembly of the fan base. Compared with the prior art, the assembly tool for the small magnet assembly of the fan base provided by the present utility model realizes quick positioning through an outer sleeve, quick installation by using an inner rod, and provides quick resilience by cooperating with a spring in the middle, ensuring quick assembly during hand-held operation, improving efficiency, achieving the portability of the quick positioning and installation tool, reducing related accessories or dedicated machines, and simplifying the installation process.

[0019] The technical solutions in the embodiments of the present utility model will be described in detail below with reference to the drawings in the embodiments of the present utility model.

[0020] As Figure 1 and Figure 2 shown, the assembly tool for the small magnet component of the fan base of the present utility model includes an outer sleeve 1 and an inner rod 202. An upper end cover is provided at the upper end of the outer sleeve 1. A through hole is coaxially provided in the upper end cover, and the diameter of the through hole is smaller than the inner diameter of the outer sleeve 1. A lower end cover is provided at the lower end of the outer sleeve 1. A positioning tube 301 extends coaxially downward in the lower end cover. The diameter of the positioning tube 301 is smaller than the inner diameter of the outer sleeve 1. The inner rod 202 is coaxially arranged inside the outer sleeve 1. The length of the inner rod 202 is smaller than the distance between the upper end cover and the lower end cover. The outer diameter of the inner rod 202 is matched with the inner diameter of the outer sleeve 1. The inner rod 202 and the outer sleeve 1 are arranged as an axial sliding pair. An actuating rod 201 extends coaxially upward at the upper end of the inner rod 202. The diameter of the actuating rod 201 is smaller than the diameter of the inner rod 202. The actuating rod 201 passes through the through hole in the upper end cover. A pressing rod 203 extends coaxially downward at the lower end of the inner rod 202. The diameter of the pressing rod 203 is smaller than the diameter of the inner rod 202. The lower end of the pressing rod 203 extends into the positioning tube 301. A spring 204 is sleeved on the upper part of the pressing rod 203. The spring 204 is located between the lower end cover of the outer sleeve 1 and the lower end face of the inner rod 202. The spring 204 biases the inner rod 202 upward. The lower end face of the pressing rod 203 is above the lower end face of the positioning tube 301. A workpiece gap is provided between the lower end face of the pressing rod 203 and the lower end face of the positioning tube 301. More than two axial cracks 302 are evenly distributed along the circumferential direction in the lower end side wall of the positioning tube 301. Any one of the axial cracks 302 opens in the lower end face of the positioning tube 301.

[0021] Further, four axial cracks 302 are evenly distributed along the circumferential direction in the lower end side wall of the positioning tube 301.

[0022] Further, the outer sleeve 1 is composed of an upper tube 101 and a lower tube 102 which are threadedly connected axially, facilitating the installation and disassembly of the upper tube 101 and the lower tube 102, and also facilitating the removal of the inner rod 202 inside, and convenient for the maintenance and replacement of internal components.

[0023] Further, the workpiece gap is greater than or equal to the axial length of the small magnet component to ensure that the small magnet component can be placed into the workpiece gap.

[0024] Further, a nylon gasket 103 is provided between the spring 204 and the lower end cover of the outer sleeve 1.

[0025] Further, a nylon gasket 103 is provided between the inner rod 202 and the upper end cover.

[0026] Specifically, the nylon gaskets 104 are respectively installed at the upper and lower ends inside the outer sleeve 1, so that when the pressing drive rod 201 is pressed, the collision and wear are reduced when the bottom end of the inner rod 202 contacts the end of the outer sleeve 1. And the elastic action of the spring 204 enables the collision and wear to be reduced when the inner rod 202 contacts the top end of the outer sleeve 1 when the inner rod 202 is reset, which can play a protective role.

[0027] As Figure 3 shown, the working process of the present utility model is as follows: The user holds the outer sleeve 1 by hand, first uses the jaws formed by the axial crack at the lower end of the positioning tube 301 to clamp the workpiece B (small magnet assembly), and then inserts the positioning tube 301 into the first blind hole in the fan base A, presses down the drive rod 201, and the pressing rod 203 presses the workpiece B (small magnet assembly) into the second blind hole in the fan base A to complete the assembly. Then, the outer sleeve 1 is pulled to take out the entire tool. Under the reset action of the spring 204, the inner rod 202 is pushed back to its original position, facilitating the installation of the next workpiece B.

[0028] Compared with the prior art, the effects of the present utility model are positive and obvious. The present utility model uses the hand-held outer sleeve 1 to guide the pressing rod 203, eliminating the need for a manual press and reducing the occupation of the working space. During its installation process, the positioning tube 301 is convenient to position with the fan base, and the small magnet assembly is accurately positioned with the second blind hole. By directly applying force to the pressing rod 203 by hand, the problem that the small magnet is easily broken when applying force through a manual press is avoided.

[0029] It should be noted that the inner rod 202 is made of plastic PP material, making the entire tool lighter and more convenient for hand-held operation. The assembly tool for the small magnet assembly of the fan base provided by the present utility model quickly positions through the outer sleeve, quickly installs using the inner rod, and is equipped with a spring in the middle to provide a quick return force, ensuring quick assembly during hand-held operation, improving efficiency, realizing the portability of the quick positioning and installation tool, reducing related accessories or dedicated machines, and simplifying the installation process.

[0030] The descriptions of the processes or structures corresponding to the above respective drawings each have their own emphases. For the parts not detailed in a certain process or structure, reference can be made to the relevant descriptions of other processes or structures.

[0031] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. An assembly tool for a small magnet component of a fan base, characterized in that It includes an outer sleeve and an inner rod. An upper end cover is provided at the upper end of the outer sleeve. A through hole is provided at the center of the upper end cover, and the diameter of the through hole is smaller than the inner diameter of the outer sleeve. A lower end cover is provided at the lower end of the outer sleeve. A positioning tube extends coaxially downward in the lower end cover, and the diameter of the positioning tube is smaller than the inner diameter of the outer sleeve. The inner rod is coaxially arranged inside the outer sleeve. The length of the inner rod is smaller than the distance between the upper end cover and the lower end cover. The inner rod and the outer sleeve are arranged as an axial sliding pair. The upper end of the inner rod extends coaxially upward to connect with a driving rod, and the diameter of the driving rod is smaller than the diameter of the inner rod. The driving rod passes through the through hole in the upper end cover. The lower end of the inner rod extends coaxially downward to provide a pressing rod, and the diameter of the pressing rod is smaller than the diameter of the inner rod. The lower end of the pressing rod extends into the positioning tube. A spring is sleeved on the upper part of the pressing rod, and the spring is located between the lower end cover of the outer sleeve and the lower end face of the inner rod. The spring biases the inner rod upward. The lower end face of the pressing rod is located above the lower end face of the positioning tube. A workpiece gap is provided between the lower end face of the pressing rod and the lower end face of the positioning tube. Two or more axial fissures are evenly distributed along the circumference on the lower side wall of the positioning tube, and any one of the axial fissures opens in the lower end face of the positioning tube.

2. The small magnet component assembly tool for the fan base according to claim 1, characterized in that, Four axial fissures are evenly distributed along the circumference in the lower side wall of the positioning tube.

3. The assembly tool for the small magnet assembly of the fan base according to claim 2, characterized in that, The outer sleeve is composed of an upper tube and a lower tube which are axially connected by threads.

4. The assembly tool for the small magnet assembly of the fan base according to claim 1, characterized in that, The workpiece gap is greater than or equal to the axial length of the small magnet assembly to be assembled.

5. The assembly tool for the small magnet assembly of the fan base according to claim 1, characterized in that A nylon gasket is provided between the spring and the lower end cover of the outer sleeve.

6. The assembly tool for the small magnet assembly of the fan base according to claim 1 or 5, characterized in that, A nylon gasket is provided between the inner rod and the upper end cover.

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