CN216991758U - Knob pull-out ware - Google Patents

Abstract

The utility model discloses a knob extraction tool which comprises two movable rods (1), a shaft (2) and a support (3), wherein the shaft (2) comprises a head (2-1), a threaded rod (2-2) and a cylinder (2-3) which are sequentially connected from top to bottom, the two movable rods (1) are respectively connected to two sides of the top of the head (2-1), the support (3) comprises a support body (3-2), the top of the support body (3-2) is provided with a support body threaded hole (3-1) matched with the threaded rod (2-2), and the bottom of the support body (3-2) forms a U-shaped cavity. The two sides of the bottom of the knob are supported by the support, the front end of the shaft is aligned to the central positioning hole of the knob, the movable rod is rotated clockwise, the knob integrally moves upwards along the shaft along with the support under the action of the shaft and the support, and the knob is easily taken down.

Description

Knob pull-out ware

Technical Field

The utility model belongs to the technical field of maintenance tools, and particularly relates to a knob puller.

Background

Currently, in on-board equipment, the adjusting knob is an indispensable and irreplaceable part. The using condition of the device determines the quality of the airborne equipment. In the airborne equipment, once the installation position of the knob is determined, the adjustment cannot be performed, so that the rotation center of the knob and the center of the installation hole of the knob have great deviation, the knob or the knob rod can rub the installation hole wall of the knob, and even the knob or the knob rod cannot rotate. The mounting and dismounting of the knob is therefore particularly important.

The knob assembly mode of the aircraft equipment mainly comprises the following steps:

1. directly mounting, fixing by a transverse screw and locking;

2. the knob and the mounting rod are fixed by screws after being in wedge joint and compression mode.

The knob adopting the first mounting mode is convenient to mount and dismount, and the integrity of the knob can be ensured. The knob adopting the second assembly method is difficult to disassemble due to long-term pressure action, and is very easy to damage the knob or the mounting rod, thereby not only wasting time and labor, but also increasing the repair cost. Therefore, a knob puller is needed, which can safely, practically and conveniently take down the knob, reduce the damage to the rotary rod of the wave band switch and reduce the repair cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a knob puller, which can safely, practically and conveniently take down a knob, reduce the damage to a rotary rod of a wave band switch and reduce the repair cost.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a knob puller, which comprises two movable rods, a shaft and a bracket,

the shaft comprises a head, a threaded rod and a cylinder which are sequentially connected from top to bottom, the two movable rods are respectively connected with the two sides of the top of the head,

the support comprises a support body, a support body threaded hole matched with the threaded rod is formed in the top of the support body, and a U-shaped cavity is formed in the bottom of the support body.

Further, one end of the movable rod includes a threaded section.

Furthermore, both sides of the top of the head part respectively comprise a head part threaded hole, and the threaded section of the movable rod is in threaded connection with the head part threaded hole.

Further, the two movable bars are symmetrically arranged with respect to the head.

Further, the movable rod is formed by machining a 1Cr18Ni9Ti stainless steel rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses a through the nimble equipment of a plurality of parts, there is the improved space to the dismantlement of different knobs, compares whole preparation and has obvious advantage.

2. The puller fills the domestic blank aiming at the pulling of a special knob of certain airplane equipment.

3. The number of damaged knobs is reduced, and the repair cost is saved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model and do not constitute a limitation of the utility model. In the drawings:

fig. 1 is a schematic view of a knob extractor.

Fig. 2 is a schematic view of the movable rod structure.

Fig. 3 is a schematic view of the structure of the shaft.

Fig. 4 is a schematic view of a stent structure.

Fig. 5 is a top view of the bracket.

Fig. 6 is a schematic view of the knob extractor in use.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model. The utility model is more particularly described in the following paragraphs with reference to the accompanying drawings by way of example. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Referring to fig. 1-5, a knob extractor comprises two movable rods 1, a shaft 2 and a bracket 3,

the shaft 2 comprises a head 2-1, a threaded rod 2-2 and a cylinder 2-3 which are sequentially connected from top to bottom, the two movable rods 1 are respectively connected with the two sides of the top of the head 2-1,

the support 3 comprises a support body 3-2, a support body threaded hole 3-1 matched with the threaded rod 2-2 is formed in the top of the support body 3-2, and a U-shaped cavity is formed in the bottom of the support body 3-2.

Further, one end of the movable rod 1 includes a threaded section.

Furthermore, two sides of the top of the head 2-1 respectively comprise a head threaded hole, and the threaded section of the movable rod 1 is in threaded connection with the head threaded hole.

Further, the two movable bars 1 are symmetrically arranged with respect to the head 2-1.

The movable rod 1 is formed by processing a 1Cr18Ni9Ti stainless steel bar, the length of the rod is 40mm, the diameter of the rod is 5mm, an M5-7H thread is tapped on one section of the rod, the depth of the thread is 5mm, and the two parts are manufactured together and are used for being assembled on two sides of a shaft to play a lever effect of a rotating shaft.

The shaft 2 is machined from a 1Cr18Ni9Ti stainless steel bar, has the total length of 66mm and is divided into three parts, the front end of the shaft is a cylinder with the length of 26mm and the diameter of 2mm, the middle part of the shaft is a threaded rod with the length of 28mm and the diameter of M6-7H, the rear end of the shaft is a cylinder with the length of 12mm and the diameter of 12mm, and two M5-7H threaded holes with the depth of 5mm are symmetrically tapped at the center positions of the two sides of the cylinder. The part is in threaded connection with the support, and the shaft is guaranteed to translate in the parallel direction.

The bracket 3 is formed by processing a 1Cr18Ni9Ti stainless steel bar, the external dimension is 30mm multiplied by 22mm multiplied by 12mm, the middle is hollowed to form a cavity similar to a U shape, an M6-7H threaded hole is tapped at the center of 22mm multiplied by 12mm, a shaft is screwed into the threaded hole, and the shaft is enabled to move horizontally in the parallel direction.

The relationships between the components are as follows:

the movable rods are arranged on two sides of the shaft and play the lever action of the rotating shaft. The combined piece of the shaft and the movable rod is screwed into the threaded hole of the bracket, so that the shaft is ensured to translate in the parallel direction.

The assembly is completed according to the technical requirements of the assembly drawing, and the using steps of the utility model are as follows (figure 6):

the two sides of the bottom of the knob are supported by the support, the front end of the shaft is aligned to the central positioning hole of the knob, the movable rod is rotated clockwise, the knob integrally moves upwards along the shaft along with the support under the action of the shaft and the support, and the knob is easily taken down. Meanwhile, the length of the front end of the shaft is about 26mm, so that the tool can be applied to the disassembly of various knobs with positioning holes, and the application range of the extractor is enlarged.

The maximum suitable length is selected at the front end of the puller aiming at different knobs with positioning holes, and the disassembly of the knobs with the positioning holes can be met. The rear end of the shaft adopts a thread design, so that the vertical movement is reliable and does not deviate, the knob is taken out with the minimum resistance, and the damage to the knob and the rotary rod is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims (5)

1. A knob puller is characterized by comprising two movable rods (1), a shaft (2) and a bracket (3),

the shaft (2) comprises a head (2-1), a threaded rod (2-2) and a cylinder (2-3) which are sequentially connected from top to bottom, the two movable rods (1) are respectively connected with the two sides of the top of the head (2-1),

the support (3) comprises a support body (3-2), a support body threaded hole (3-1) matched with the threaded rod (2-2) is formed in the top of the support body (3-2), and a U-shaped cavity is formed in the bottom of the support body (3-2).

2. The knob extractor according to claim 1, characterized in that one end of said movable rod (1) comprises a threaded section.

3. The knob extractor according to claim 2, wherein both sides of the top of the head (2-1) respectively comprise a head threaded hole, and the threaded section of the movable rod (1) is in threaded connection with the head threaded hole.

4. The knob extractor according to claim 3, characterized in that said two movable rods (1) are symmetrically arranged with respect to the head (2-1).

5. Knob extractor according to any of the claims 1-4, characterized in that said movable rod (1) is machined from 1Cr18Ni9Ti stainless steel bar.

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