CN218341973U

CN218341973U - Hidden nut assembling and disassembling tool

Info

Publication number: CN218341973U
Application number: CN202222554088.4U
Authority: CN
Inventors: 李伦; 王昕�; 李方圆; 杨启兵; 柳胜; 周争涛
Original assignee: Avic Chengfei Commercial Aircraft Co ltd
Current assignee: Avic Chengfei Commercial Aircraft Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-01-20
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a hide nut handling instrument relates to a mechanical tool, and the purpose provides one kind both can the exclusive use, can cooperate the hidden nut handling instrument that the power wrench used again. The utility model adopts the technical proposal that: hide nut handling instrument, including switching pole and adapter, the one end of switching pole sets up decides power spanner connection structure, decide power spanner connection structure be used for with decide power spanner and cooperate, the other end of switching pole is fixed or can dismantle the connection adapter, the adapter sets up hidden nut fixed knot structure to one side of connecting the pole dorsad, hidden nut fixed knot structure is used for cooperating with the hidden nut that needs installation or dismantlement, the switching pole still sets up and is used for making the switching pole around its central line pivoted handle. The hidden nut assembling and disassembling tool is used for assembling and disassembling the hidden nut, and the hidden nut can be screwed down to required torque by matching with a fixed-force wrench.

Description

Hidden nut assembling and disassembling tool

Technical Field

The utility model relates to a mechanical tool specifically is an instrument that is used for supplementary installation and dismantles hidden nut.

Background

There are structures in aircraft that hide nuts, which means that the nuts are in a fully or partially enclosed structure. When a common wrench is used for mounting or dismounting the hidden nut, the wrench cannot be used for dismounting and mounting the hidden nut because the rotating plane of the wrench is blocked by a structural part outside the nut.

The patent with the publication number of CN 202716206U discloses a fixed-force wrench adapter rod, which comprises a wrench head and a connecting rod, wherein the end face of the wrench head is provided with an inner square hole, the end head of the connecting rod is provided with a square shaft, and the square shaft is matched and connected with the square hole; the other end of the wrench head is a large regular hexagonal inner hole, and one end of the connecting rod is provided with a small regular hexagonal inner hole. This decide power spanner switching pole can realize hiding the installation and the dismantlement of nut, but must cooperate decide power spanner just can use, unable exclusive use. In addition, the connecting rod of this decide power spanner switching pole sets up the one end of little regular hexagon hole and is used for cooperating with the nut, can only use with the outer hexagon nut cooperation of specific dimensions, and the commonality is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hidden nut handling instrument that both can the exclusive use, can cooperate the fixed force spanner to use again.

The utility model adopts the technical proposal that: hide nut handling instrument, including switching pole and adapter, the one end of switching pole sets up decides power spanner connection structure, and the other end fixed connection of switching pole can dismantle the connection adapter, and the adapter sets up hidden nut fixed knot structure back to one side of connecting the pole, and the switching pole still sets up and is used for making the switching pole around its central line pivoted handle.

Further, the method comprises the following steps: the adapter is at least two, and the size of the hidden nut fixed knot of each adapter constructs is different, and each adapter all can be dismantled with the switching pole and be linked to.

Further, the method comprises the following steps: the adapter rod is detachably connected with the adapter through a key groove structure.

Specifically, the method comprises the following steps: the constant force wrench attachment structure is a notch in the shape of a regular quadrangular prism, for example, a 1/4 inch notch.

Specifically, the method comprises the following steps: the switching pole, adapter and handle are all 30CrMnSiA material.

Further, the method comprises the following steps: the handle is a straight rod, a through hole is formed in one end, close to the fixed-force wrench connecting structure, of the adapter rod, the handle is installed in the through hole, and the center line of the handle is perpendicular to the center line of the adapter rod.

Specifically, the method comprises the following steps: one side of the adapter back-to-back rotating connecting rod is provided with at least three claw heads along the circumferential direction.

Further, the method comprises the following steps: and all the claw heads of the adapter are arranged at equal central angles.

Further, the method comprises the following steps: a counter bore is arranged in a circle corresponding to the claw head of the adapter.

The utility model has the advantages that: a hidden nut fixing structure is arranged on one side of the adapter and can be matched with a hidden nut to be installed or disassembled; one end of the adapter rod is provided with a fixed-force wrench connecting structure which can be matched with a fixed-force wrench; the adapter rod is further provided with a handle, and the adapter rod can be rotated by the handle to rotate around the center line of the adapter rod. To the installation and the dismantlement of hiding the nut, hide nut handling instrument both can cooperate the constant force spanner to use, also can the exclusive use. The hidden nut assembling and disassembling tool can quickly complete the assembling and disassembling of the hidden nut, and the hidden nut can be screwed down to required torque by matching with a fixed-force wrench.

The adapter is at least two, and the hidden nut fixed knot of each adapter constructs the size difference, can the different specifications of adaptation hide the nut respectively, improves the commonality to the hidden nut of different specifications.

Drawings

Fig. 1 is a schematic structural view of the nut-concealed handling tool of the present invention.

Figure 2 is a schematic view of the side of the adapter opposite the extension bar of the embodiment shown in figure 1.

Fig. 3 is a schematic view of a hidden nut for use with the hidden nut handling tool of the present invention.

Reference numerals are as follows: the device comprises an adapter rod 1, a notch 11, an adapter 2, a claw head 21, a counter bore 22, a handle 3 and a hidden nut 4.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The utility model discloses hide nut handling instrument is used for hiding the installation and the dismantlement of nut. As shown in figure 1, the hidden nut assembling and disassembling tool comprises an adapter rod 1 and an adapter 2, wherein one end of the adapter rod 1 is provided with a fixed-force wrench connecting structure, and the other end of the adapter rod 1 is fixedly connected with or detachably connected with the adapter 2. The fixed-force wrench connecting structure is used for being connected with the fixed-force wrench and can transmit the torque of the fixed-force wrench, and for example, the fixed-force wrench connecting structure is a notch 11 in a regular quadrangular prism shape. Specifically, the constant force wrench is attached to a 1/4 inch slot 11. Adapter 2 is used for direct and hide the nut cooperation to exert moment to hiding the nut, realize the unscrewing or screwing up of hiding the nut. The adapter rod 1 is further provided with a handle 3, and the handle 3 is used for manually operating the adapter rod 1 to enable the adapter rod 1 to rotate around the central line of the adapter rod 1. In order to achieve the labor-saving effect, the handle 3 is a straight rod, a through hole is formed in one end, close to the fixed-force wrench connecting structure, of the adapter rod 1, the handle 3 is installed in the through hole, and the center line of the handle 3 is perpendicular to the center line of the adapter rod 1. The handle 3 can be fixed to the adapter rod 1, for example by a welded connection, or the handle 3 can be in a clearance fit with a through hole of the adapter rod 1. When the handle 3 is in clearance fit with the through hole of the adapter rod 1, the assembly is convenient, and the adapter rod 1 can be operated through the handle 3 in a labor-saving manner. The adapter rod 1, the adapter 2 and the handle 3 are all made of metal materials, such as 30CrMnSiA materials.

The adapter rod 1 and the adapter 2 can be fixedly connected, for example, the adapter rod 1 and the adapter 2 are integrated or welded, and the adapter 2 has only one specification; or, the adapter rod 1 and the adapter 2 are detachably connected, and at this time, one or more adapters 2 can be equipped. When being equipped with two or more than two adapters 2, each adapter 2 all can be dismantled with switching pole 1 and link, and the size of the hidden nut fixed knot who hides of each adapter 2 is different to the hidden nut of adaptable not equidimension specification. Can dismantle between switching pole 1 and the adapter 2 and be connected the back, can transmit the moment of torsion between switching pole 1 and the adapter 2 can. For example, the adapter rod 1 and the adapter 2 are detachably connected through a key groove structure. Specifically, one of the adapter rod 1 and the adapter 2 is provided with a square head, and the other is provided with a notch matched with the square head, for example, a 1/4 inch notch.

One side of adapter 2 dorsad contra-rotating extension rod 1 sets up hides nut fixed knot and constructs, hides nut fixed knot and constructs the cooperation that is used for adapter 2 and hidden nut, realizes the transmission of moment. The hidden nut fixing structure can be a counter bore with the shape consistent with the outer contour of the hidden nut; alternatively, referring to fig. 1 and 2, at least three claw heads 21 are arranged on one side of the adapter 2 opposite to the extension bar 1 along the circumferential direction, and the claw heads 21 form a clamping fixing point from the outside of the hidden nut. In order to balance the forces on the respective claws 21, the respective claws 21 of the adapter 2 are arranged at an equal center angle. For example, at least four claw heads 21 are arranged in the circumferential direction on the side of the adapter 2 facing away from the extension bar 1, and the central angle formed by two adjacent claw heads 21 is 90 °, see fig. 2.

In order to adapt to the hidden nut with the special shape, for example, as shown in fig. 3, in order to adapt to the hidden nut 4 with the arc surface on the outer side, a counter bore 22 is arranged in the circle corresponding to the claw head 21 of the adapter 2, and the counter bore 22 is used for accommodating the arc surface of the hidden nut 4. The left dotted line portion of fig. 1 is the counterbore 22, and the inner circle of fig. 2 is the counterbore 22.

When using hidden nut handling instrument, hide the nut with the installation object earlier and put into the counter bore that corresponds, reuse the adapter 2 of hiding the nut handling instrument and hide the nut cooperation to through handle 3 manual tightening hidden nut in advance, use at last to decide power spanner and the butt joint of adapter rod 1, screw up through deciding power spanner and decide power to required moment. The hidden nut assembling and disassembling tool can quickly complete the installation of the hidden nut, and can be screwed to the required torque, and can also be used for disassembling the hidden nut.

Claims

1. Hide nut handling instrument, including switching pole (1) and adapter (2), the one end of switching pole (1) sets up decides power spanner connection structure, and the other end fixed connection of switching pole (1) can dismantle and connect adapter (2), and adapter (2) are carried on the back and are set up hidden nut fixed knot structure, its characterized in that to one side of connecting pole (1): the switching rod (1) is also provided with a handle (3) which is used for enabling the switching rod (1) to rotate around the central line thereof.

2. The blind nut handling tool of claim 1 wherein: adapter (2) are two at least, and the size of the hidden nut fixed knot of each adapter (2) constructs is different, and each adapter (2) all can be dismantled with switching pole (1) and link.

3. The blind nut handling tool of claim 1 wherein: the adapter rod (1) and the adapter (2) are detachably connected through a key groove structure.

4. The blind nut handling tool of claim 1 wherein: the fixed force spanner connecting structure is a notch (11) in a regular quadrangular prism shape.

5. The blind nut handling tool of claim 4 wherein: the notches (11) are 1/4 inch notches.

6. The blind nut handling tool of claim 1 wherein: the adapter rod (1), the adapter (2) and the handle (3) are all made of 30CrMnSiA materials.

7. A blind nut handling tool as claimed in any one of claims 1 to 6 wherein: the handle (3) is a straight rod, a through hole is formed in one end, close to the fixed-force wrench connecting structure, of the adapter rod (1), the handle (3) is installed in the through hole, and the center line of the handle (3) is perpendicular to the center line of the adapter rod (1).

8. A blind nut handling tool as claimed in any one of claims 1 to 6 wherein: one side of the adapter (2) back to the connecting rod (1) is provided with at least three claw heads (21) along the circumferential direction.

9. The blind nut handling tool of claim 8 wherein: each claw head (21) of the adapter (2) is arranged at an equal central angle.

10. The blind nut handling tool of claim 8 wherein: a counter bore (22) is arranged in a circle corresponding to the claw head (21) of the adapter (2).