CN219649751U - Stress application rod - Google Patents

Abstract

The utility model provides a afterburning stick, includes the shell, sets up the movable core group in the shell and avoid the limit structure that movable core group breaks away from the shell, movable core group includes more than two movable cores that can follow self axis direction and remove, adjacent be provided with the clearance between the movable core, be located movable core group terminal surface position on the shell and be provided with the instrument inserted hole. The movable core in the stressing rod is arranged in the shell, and when the stressing rod works, the inner hexagonal wrench can be inserted into the tool insertion port, so that part of the movable core is retreated along the thrust direction by the thrust given by the inner hexagonal wrench, and the movable core which is not pushed by the inner hexagonal wrench is in situ, so that an adaptive accommodating space is reserved for the inner hexagonal wrench, and therefore, the single stressing rod can effectively stress the inner hexagonal wrench with all specification parameters, and the working efficiency and convenience are effectively improved.

Description

Stress application rod

Technical Field

The utility model relates to the field of auxiliary tools, in particular to a stress application rod.

Background

In the routine equipment maintenance of power plant, there is extensive use scene in allen wrench. However, in certain working environments, the space is limited, and only the long shank side of the socket head cap wrench can be used for inserting the nut, and the maintenance personnel can use the short shank side for applying force. Because the short handle side is usually only about 3CM, the moment arm is short, maintenance personnel need to use a force applying rod to extend the side of the short handle to normally apply force, and sometimes the tail hole of the adjustable spanner can be sleeved into the short handle side, so that the adjustable spanner becomes an extension end of the short handle side to apply force, but the adjustable spanner is not a special power-assisted handle after all, and the use is inconvenient. The current hexagon socket wrench with a certain size is specially adapted to the hexagon socket wrench or the power-assisted handles on the market, so that the complete-size hexagon socket wrench cannot be assembled by one power-assisted rod, and when the hexagon socket wrench with various types is required to be adapted, a plurality of power-assisted handles are required to be carried, and inconvenience is caused.

In view of this, the present utility model has been made.

Disclosure of Invention

The utility model aims to provide a stress application rod which can be used for assembling an inner hexagonal wrench with full size, thereby improving applicability and convenience.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the utility model provides a stress application rod, which comprises a shell, a movable core group arranged in the shell and a limiting structure for preventing the movable core group from being separated from the shell, wherein the movable core group comprises more than two movable cores capable of moving along the axis direction of the movable core group, a movable gap is arranged between adjacent movable cores, and a tool inserting port is arranged on the shell and positioned at the end face of the movable core group.

In an alternative embodiment, the limit structure comprises a limit plate arranged in the shell, a limit hole for the movable core to pass through is formed in the limit plate, a limit part is arranged on one side, away from the tool insertion port, of the limit plate, and the outer diameter of the limit part is larger than the aperture of the limit hole.

In an alternative embodiment, one end of the movable core group, which is far away from the tool insertion port, is provided with a pushing structure for pushing the movable core to move towards the direction approaching the insertion port.

In an alternative embodiment, a magnetic material coating is disposed at one end of the movable core away from the tool insertion opening, and the pushing structure is a magnetic block fixed on the housing, and the magnetic block and one end of the magnetic material coating, which is close to the magnetic block, have the same magnetism.

In an alternative embodiment, the housing is cylindrical, and is provided with a tool insertion opening at one end and a magnet at the other end.

In an alternative embodiment, the inner diameter of the housing increases gradually in a direction away from the tool insertion opening, and the limiting plate is located at an end of the movable core away from the tool insertion opening.

In an alternative embodiment, the length of the shell is 130-160mm, the diameter of one end of the tool insertion opening is 20-40mm, and the difference of the inner diameters of the two ends of the shell is 8-15mm.

In an alternative embodiment, a hand-held part is arranged on the outer wall of the shell, and an anti-slip layer is arranged on the hand-held part.

In an alternative embodiment, a reinforcing plate is further arranged in the shell, and a through hole for the movable core to pass through is arranged on the reinforcing plate.

In an alternative embodiment, the diameter of the movable core is 0.4-0.6mm.

The embodiment of the utility model has the beneficial effects that:

the movable core in the stressing rod is arranged in the shell, and when the stressing rod works, the inner hexagonal wrench can be inserted into the tool insertion port, so that part of the movable core is retreated along the thrust direction by the thrust given by the inner hexagonal wrench, and the movable core which is not pushed by the inner hexagonal wrench is in situ, so that an adaptive accommodating space is reserved for the inner hexagonal wrench, and therefore, the single stressing rod can effectively stress the inner hexagonal wrench with all specification parameters, and the working efficiency and convenience are effectively improved.

The stress application bar of the utility model is also suitable for the extension of other wrench handles, is not limited by the shape of the wrench handle, and has universality as long as the stress application bar can be inserted into a tool insertion port in a poor manner.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the stress application bar in the present utility model.

Icon 1-shell; 2-a movable core group; 3-tool insertion opening; 4-limiting plates; 5-magnetic blocks.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, the present embodiment provides a stress application rod, including a housing 1, a movable core group 2 disposed in the housing 1, and a limiting structure for preventing the movable core group 2 from being separated from the housing 1, where the movable core group 2 includes more than two movable cores capable of moving along the axis direction thereof, a movable gap is disposed between adjacent movable cores, and a tool insertion port 3 is disposed on the housing 1 at the end surface of the movable core group 2.

In the stressing rod, the movable core is arranged in the shell 1, and when the stressing rod works, the inner hexagonal wrench can be inserted into the tool insertion port 3, so that part of the movable core is retreated along the thrust direction by the thrust given by the inner hexagonal wrench, and the movable core which is not subjected to the thrust of the inner hexagonal wrench is in situ, so that an adaptive accommodating space is reserved for the inner hexagonal wrench, and therefore, the single stressing rod can effectively stress the inner hexagonal wrench with all specification parameters, and the working efficiency and convenience are effectively improved.

The stress application bar of the present utility model is applicable to extension of other wrench handles, and is not limited by the shape of the wrench handle, as long as the tool insertion port 3 can be inserted poorly, and has universality.

In an alternative embodiment, the limit structure comprises a limit plate 4 arranged in the shell 1, a limit hole for the movable core to pass through is formed in the limit plate 4, a limit part is arranged on one side, away from the tool insertion port 3, of the limit plate 4, the outer diameter of the limit part is larger than the aperture of the limit hole, the movable core can be prevented from sliding out of the tool insertion port 3 due to the existence of the limit plate 4, and the movable core is separated from the shell 1.

In some preferred embodiments of the present utility model, the limiting plate 4 is disposed at an end of the movable core away from the tool insertion port 3, and two points on the movable core are limited by the tool insertion port 3 and the limiting plate 4, so that the movable core can be relatively orderly arranged in the housing 1.

In some embodiments, the stopper is a protrusion provided on the movable core, and in other embodiments, a diameter-increasing section is provided at the end of the movable core (the end remote from the tool insertion port 3).

In an alternative embodiment, a pushing structure for pushing the movable core to move toward the insertion opening is provided at an end of the movable core group 2 away from the tool insertion opening 3.

When the tool is inserted, the movable core adjacent to the movable core subjected to the thrust of the tool can be subjected to friction force and easily slide towards the tail end, so that the connection with a wrench is affected, and the friction force applied to the movable core can be counteracted by the thrust structure. In addition, the thrust structure can also enable the thrust of the iron core pushing structure under the non-working state, and the head end of the iron core can be positioned at the flush position of the stress application rod tool inserting port 3.

In an alternative embodiment, a magnetic material coating is disposed at the end of the movable core away from the tool insertion opening 3, the pushing structure is a magnetic block 5 fixed on the housing 1, and the magnetism of the magnetic block 5 is the same as that of the end of the magnetic material coating close to the magnetic block 5.

In some embodiments of the present utility model, the pushing structure may be an elastomer, such as a rubber block, but the problem of aging and deformation easily occurs after long-term use, so that the preferred embodiment applies force to the movable iron core through the repulsive force between the movable iron core and the magnetic block 5, and the present utility model has a simple structure and is convenient for maintenance.

In an alternative embodiment, the casing 1 is cylindrical, one end is provided with a tool insertion opening 3, and the other end is fixed with a magnetic block 5, so that the portable electronic device is convenient to hold.

In an alternative embodiment, the inner diameter of the housing 1 gradually increases along the direction away from the tool insertion opening 3, the limiting plate 4 is located at one end of the movable core away from the tool insertion opening 3, the inner diameter of one end of the limiting plate 4 increases, and a setting space is provided for the limiting plate 4.

In an alternative embodiment, the length of the shell 1 is 130-160mm, the diameter of the end where the tool insertion port 3 is located is 20-40mm, and the difference of the inner diameters of the two ends of the shell 1 is 8-15mm, so that the existing socket head wrench can be conveniently adapted.

In an alternative embodiment, a hand-holding part is arranged on the outer wall of the shell 1, and an anti-slip layer is arranged on the hand-holding part, so that the friction force between the hand-holding part and the palm is increased during operation, and slipping is prevented.

In an alternative embodiment, a reinforcing plate is further disposed in the housing 1, and a through hole for the movable core to pass through is disposed in the reinforcing plate, so that when the front end of the movable core group 2 does not extend out of the tool insertion port 3, a limiting effect on the movable core can be achieved, and the inclination of the movable core is avoided.

In some embodiments, the stiffener plate is positioned adjacent to the tool insertion opening 3 to provide support for the movable core and reduce the likelihood of deformation of the movable core due to forces.

In an alternative embodiment, the diameter of the movable core is 0.4-0.6mm.

Specifically, the inner hexagonal stressing rod provided by one embodiment of the utility model consists of a stressing rod body shell 1, an inner movable iron core, a rear end built-in sieve mesh and a tail end strong magnetic block 5.

The shape of the stressing rod body shell 1 is two sections of conical shapes with inconsistent diameters. The tool insertion port 3 is a circular shape having a diameter of 20mm, and the tip is a circular shape having a diameter of 30 mm. The length of the rod body is 150mm, and the outer side of the rod body is coated with a black fine particle rubber layer with the thickness of 1mm, so that the friction force between the rod body and the palm is increased during operation, and slipping is prevented.

The inside of the stressing rod is filled with a plurality of metal iron cores with the diameter of 0.5mm, and the iron cores are properly spaced, so that the iron cores can flexibly slide back and forth. Each iron core has a length of 130mm, the end of the iron core, which is applied with a force, is slightly thickened, the diameter is 0.6mm, and the end is coated with a magnetic material. The reinforcing bar is from 130mm department embeds there is a sieve, and the sieve is full of the hole that the diameter is 0.5mm, and every iron core all penetrates the sieve from the terminal side, stretches out the maximum length of sieve when the iron core, and flushes reinforcing bar working end, because the iron core end slightly is greater than the sieve aperture, will be blocked owner for the iron core can not the slippage out the reinforcing bar body.

The tail end of the stressing rod is a strong magnetic block 5 with the thickness of 5mm, the magnetism of the strong magnetic block is consistent with that of a magnetic material brushed on the tail end of the iron core, and the strong magnetic block 5 and the iron core repel each other, so that the iron core receives the repulsive force of the strong magnetic block 5 at the tail end in a non-working state, and the head end of the iron core can be positioned at the flush position of the working end of the stressing rod.

When the inner hexagonal short handle side is needed to be forced, the working face of the force application rod is sleeved on the short handle side, a plurality of iron cores are extruded by the short handle side, holes with the specification consistent with that of the short handle are automatically formed, the short handle is sleeved tightly, and then the inner hexagonal short handle side can be normally forced.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a afterburning stick, its characterized in that includes the shell, sets up the movable core group in the shell and avoid the limit structure that movable core group breaks away from the shell, movable core group includes more than two movable cores that can follow self axis direction and remove, the movable core is the iron core, adjacent be provided with the clearance between the movable core, be located movable core group terminal surface position on the shell and be provided with the instrument inserted hole.

2. The stress application rod according to claim 1, wherein the limit structure comprises a limit plate arranged in the housing, a limit hole for the movable core to pass through is formed in the limit plate, a limit part is arranged on one side, away from the tool insertion port, of the limit plate, and the outer diameter of the limit part is larger than the aperture of the limit hole.

3. The booster bar of claim 2 wherein an end of the movable core assembly remote from the tool insertion opening is provided with a pushing structure for pushing the movable core toward the insertion opening.

4. A force bar according to claim 3, wherein the movable core is provided with a coating of magnetic material at an end thereof remote from the tool insertion opening, the pushing structure is a magnet fixed to the housing, and the magnet is magnetically identical to an end of the coating of magnetic material adjacent to the magnet.

5. The bar of claim 4, wherein the housing is cylindrical and has a tool insertion opening at one end and a magnet at the other end.

6. The applicator stick of claim 5, wherein the inner diameter of the housing increases progressively in a direction away from the tool insertion port, and the stop plate is located at an end of the movable core away from the tool insertion port.

7. The bar of claim 6, wherein the length of the housing is 130-160mm, the diameter of the end of the tool insertion opening is 20-40mm, and the difference between the inner diameters of the two ends of the housing is 8-15mm.

8. The applicator stick of claim 1, wherein a grip is provided on the outer wall of the housing, and an anti-slip layer is provided on the grip.

9. The applicator stick of claim 1, wherein a stiffener is further disposed within the housing, the stiffener having a through hole disposed therethrough for the movable core.

10. The applicator stick of claim 1, wherein the movable core has a diameter of 0.4-0.6mm.