CN112157617A

CN112157617A - Power-assisted wrench

Info

Publication number: CN112157617A
Application number: CN202010953332.7A
Authority: CN
Inventors: 田辉
Original assignee: Suzhou Inspur Intelligent Technology Co Ltd
Current assignee: Suzhou Inspur Intelligent Technology Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-01-01
Anticipated expiration: 2040-09-11
Also published as: CN112157617B

Abstract

The invention designs a power-assisted wrench, and belongs to the technical field of accessory parts for communication equipment. The technical scheme is as follows: the improved wrench is characterized by comprising a bottom shell, wherein a wrench is arranged on the bottom shell, the wrench is rotatably arranged on the bottom shell through a wrench rotating shaft, and a wrench handle capable of being pulled is arranged on the wrench through a linear guide structure. The force application force arm is lengthened by using a telescopic structure, so that the limitation that the pulling-out force and the pulling-in force are smaller due to the short force arm of the existing vertical spanner is overcome. The scheme can unlock, pull out and pull out the plug-in card with large plug-in force by using a single finger. In addition, the requirement for space is small.

Description

Power-assisted wrench

Technical Field

The invention relates to the technical field of accessory parts for communication equipment, in particular to a power-assisted wrench for the communication equipment.

Background

At present, many card insertion modules in communication equipment are provided with plugging power-assisted wrenches. The horizontal spanner generally occupies the height space of the card insertion panel, and can not be used on some cards which do not allow the card insertion panel to occupy the height space. At this moment, a vertical spanner needs to be considered, but the height of the existing vertical spanner is limited by the height of a card to be inserted, the vertical spanner is generally not too long, the spanner is too short, so that on one hand, hands cannot hold and apply force, and on the other hand, the lever ratio is small, and the vertical spanner hardly meets the requirements when being used for inserting cards with large insertion and extraction forces.

Therefore, a vertically-arranged power-assisted wrench which can solve the problems that when the space of a panel is limited, the force application is limited because a hand can not hold the card and the large-insertion-and-extraction-force card can not be extracted is developed, and the card can be extracted by only using a single finger when the space of the panel is limited.

Disclosure of Invention

The invention provides a power-assisted wrench aiming at the defects of the prior art, and solves the technical problem that a large-insertion-force card cannot be pulled out when the space of a panel is limited.

The technical scheme of the invention is as follows: the power-assisted wrench comprises a bottom shell, wherein a wrench is arranged on the bottom shell, the wrench is rotatably arranged on the bottom shell through a wrench rotating shaft, and a wrench handle capable of being pulled is arranged on the wrench through a linear guide structure. The arm of force of the force application point is prolonged through the telescopic spanner handle capable of being pulled, the arm of force of the spanner handle pulled out is increased during use, the lever ratio of the spanner to be stressed is increased under the action of the lever principle, the finger pressing force is correspondingly reduced, and pulling is easier. When not in use, the wrench handle is retracted, thus saving space. The novel vertical wrench has the advantages that the overall occupied space is small, the appearance is neat and attractive, the large-insertion-force plug-in card can be pulled out through a single finger in a limited panel space, the working principle is reliable, and the problem that the traditional vertical wrench is limited in pulling-out and pulling-in force due to the fact that the force arm is short under the condition that the space is small is solved.

The invention is further improved in that the bottom shell is also provided with an auxiliary guide structure of a wrench handle. The auxiliary guide structure enables the force applied when the finger is hooked and pulled to be always in the horizontal direction, and the force application is kept stable.

The invention further improves that the auxiliary guide structure comprises a limiting column, the limiting column is arranged on the bottom shell, and the side surface of the limiting column can be in contact with the upper end surface of the wrench handle to realize a limiting effect. Through spacing post, at spanner handle pull-out in-process, spacing post side can be tangent with the slide bar up end for the atress is in the horizontal direction all the time when the finger colludes and draws, keeps the application of force stable.

The invention further improves that at least one group of limiting columns is provided.

The invention is further improved in that the tail part of the handle of the wrench is also provided with a drawing limit structure. The limiting effect on the drawing action is realized through the drawing limiting structure.

The invention further improves the structure that the drawing limiting structure comprises a stop nail, the stop nail is arranged at the tail part of the handle of the wrench, and the side surface of the head part of the stop nail can contact with the side wall of the wrench to realize the limiting effect. Simple structure and reliable distance.

In a further improvement of the invention, at least one group of stop nails is provided.

In a further improvement of the invention, the head of the wrench handle is also provided with a locking device. The handle of the wrench can be locked when not in use through the locking device, so that the handle of the wrench cannot be jumped to cause occupied space or damage.

The invention is further improved in that the locking device comprises a locking piece, the middle part of the locking piece is rotatably arranged in a groove arranged at the head of the handle of the wrench through a rotating shaft, one end part of the locking piece is provided with a clamping hook, the clamping hook can be matched with a clamping hook hole arranged at the top end of the wrench to limit the handle of the wrench, and an elastic piece is arranged between the other end of the locking piece far away from the clamping hook and the bottom end of the groove. The recess makes things convenient for the staff application of force, and the design is close to heart rationally, and through the general locking piece of lever, when the staff pressed into the recess, the one end of pressing down and installing the elastic component made the locking piece other end perk, so the trip that sets up on the other end just cancels the cooperation with the trip hole, has just also relieved locking state, pulls out the spanner handle smoothly. The locking state is the same, after the wrench handle is pushed back, the locking device is automatically locked, and the wrench handle and the wrench can be reliably locked by utilizing the elasticity of the elastic piece. Simple structure and principle are reliable.

The wrench handle further comprises a side cover, the side cover can be buckled with the bottom shell to form a shell, one end of the shell is open, and the head of the wrench handle is positioned outside the shell. The occupied space is small, the shell protects the internal structure from being damaged, and the service life is prolonged.

The vertical spanner has the advantages of making up the defects of the existing vertical spanner technology and effectively solving the problem that hands cannot hold and apply force in the process of wrenching when the space is limited. Through retractable's structure, effectively increase the lever ratio of spanner atress for can extract the big plug-in and pull out power plug-in card through single finger, it is convenient to use, does not receive the space restriction. Meanwhile, the wrench is provided with a locking device and a drawing limiting structure, so that the wrench has a good self-locking function, is reliable in locking and stable in performance, and improves wrench operation experience.

In addition, the invention has the advantages of reliable design principle, simple structure, humanization and very wide application prospect.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a horizontally pulled-out state according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the structure of the embodiment of the present invention in a horizontally pulled-out state.

Fig. 3 is a schematic perspective view of the embodiment of the present invention in an inoperative state.

Fig. 4 is a schematic cross-sectional view of the structure of the embodiment of the present invention in the inoperative state.

Fig. 5 is a schematic structural sectional view of the embodiment of the present invention in an operating state.

In the figure, 1, a side cover, 2, a bottom shell, 3, a wrench rotating shaft, 4, a wrench, 5, a handheld handle, 6, a buckle, 7, a sliding rod, 8, a groove, 9, a locking piece, 10, a limiting column, 11, a clamping hook, 12, an elastic piece, 13, a clamping hook hole, 14, a stop nail, 15 and a card inserting.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following explains key terms appearing in the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be directly connected to each other, indirectly connected to each other through an intermediate member, or connected to each other through the inside of two members. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in the figures, the power-assisted wrench specifically comprises a shell, wherein the shell comprises a bottom shell 2, a side cover 1 is arranged opposite to the bottom shell 2, the bottom shell 2 and the side cover 1 can be buckled relatively in a size matching mode, and a cavity with two open ends is formed in the middle. An opening can be established on the same position of homonymy with the concrete bottom shell 2 of side cap 1, wears to be equipped with spanner pivot 3 in the casing, 3 one ends of spanner pivot and 1 fixed connection of side cap, the other end and bottom shell 2 fixed connection.

The last rotation of spanner pivot 3 is connected with spanner 4, and the casing is located spanner 4's periphery, and spanner 4 is concrete can adopt following structure: the bottom end of the wrench 4 is provided with a protruding groove-shaped buckle 6, and the buckle 6 is matched with the size of the opening and can extend out of the opening. The wrench 4 is provided with a wrench handle which can be pulled and pulled through a linear guide structure.

The linear guide structure can specifically adopt the following structure: one end of one side surface of the wrench 4 far away from the buckle 6 is provided with a sliding groove which is sunken towards the other side surface of the wrench 4.

The wrench handle can adopt the following structure: including slide bar 7 and the handheld handle 5 of setting at slide bar 7 head, slide bar 7 inserts in the spout can realize the pull of spanner handle with spout sliding fit. The tail of slide bar 7 is equipped with pull limit structure, and pull limit structure includes that at least a set of ends position nail 14, ends position nail 14 and installs the afterbody at slide bar 7. The handle 5 is exposed out of the shell, and a groove 8 is arranged on the handle 5. A notch communicated with the groove 8 is formed at one end of the handle 5 close to the sliding rod 7, and a locking device is arranged in the notch.

Locking means includes locking piece 9 and with 9 matched with trip hole 13 of locking piece, the specific mountable of locking piece 9 is in the opening, the middle part of locking piece 9 is rotated with handheld handle 5 through the pivot and is connected, 9 tip of locking piece is equipped with trip 11, trip 11 can be spacing to the spanner handle with the trip hole 13 cooperation that sets up on 4 tops of spanner, the other end of keeping away from trip 11 on the locking piece 9 passes through elastic component 12 and is connected with the bottom of opening. The elastic member 12 may be a spring, a torsion spring, a leaf spring, or other similar structural members capable of generating elastic force.

In addition, still include at least a set of spacing post 10, spacing post 10 one end and side cap 1 fixed connection, the other end and drain pan 2 fixed connection, spacing post 10 is parallel with spanner pivot 3, spacing post 10 is located the upper end of slide bar 7, spacing post 10 side can be tangent with slide bar 7 up end.

The working process of the invention can be divided into: pulling out and pulling in processes.

Pulling out: after the finger stretched into recess 8 of handheld handle 5, will press the one end of locking piece 9 in the lump, until the trip 11 on the locking piece 9 other end and the trip hole 13 on spanner 4 break away from, the spanner handle can be toward pulling out this moment, at the pull-out in-process, spanner 4 and slide bar 7 can not produce rotary motion owing to the effect of spacing post 10 on the casing for the atress is in the horizontal direction all the time when the finger colludes and draws, keeps the application of force stable. When the handle of the wrench is pulled outwards to the bottom, the stop nail 14 on the handle can contact with the side wall of the wrench 4 to realize limiting. Pressing the handle 5 with a finger will drive the wrench 4 to rotate around the wrench rotation shaft 3 and generate a pulling force to be pulled outwards. The card 15 to be operated is aligned and forced by the latch 6.

Pulling in process: contrary to the pulling-in process, the finger pushes the lower end face of the handle 5 from the lower part to drive the whole wrench handle to rotate to generate the pulling-in force. The clamping card 15 which needs to be operated is aligned by the buckle 6 to apply force, and the work is completed. Then the handle is rotated to the level of the handle, the handle is pushed inwards, and the hook 11 on the other end of the locking piece 9 naturally hooks the hook hole 13 on the wrench 4 under the action of the elastic piece 12.

The vertical spanner has the advantages of making up the defects of the existing vertical spanner technology and solving the problem of the limitation of small pulling-out and pulling-in force caused by the short force arm of the traditional vertical spanner. Through the structure extension application of force arm that uses retractable, reduced the finger application of force relatively promptly through leverage, effectively solve the limited condition in space, pull the problem that the process staff can't grip the application of force, can't plug power plug-in card greatly. The maximum distance that the wrench handle can be pulled out is limited through the drawing limiting structure, the structure is simple, the principle is reliable, the wrench handle is guaranteed not to fall out, otherwise, time is needed to be spent for installation and adjustment, time and labor are wasted, and efficiency is low. The shell can be directly operated only by leaving an opening for exposing the buckle 6 of the wrench for operation, and the space is saved by the design. The limiting column 10 ensures that the finger force application is kept horizontal and stable in the telescopic process of the wrench handle. The locking problem of the wrench 4 and the wrench handle is solved through the locking device, the wrench handle can be unlocked by the way by the operation of stretching into the groove 8 with the help of fingers, and the operation is natural and smooth. The groove 8 enables the fingers to apply force comfortably, and the fingers can smoothly hook outwards and pull and press downwards, so that the operation experience of the wrench is improved. The whole process of unlocking, pulling out and pulling out can be carried out by a single finger, and the requirement on the operation space is reduced to the minimum.

Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a power wrench, characterized by includes drain pan (2), be provided with spanner (4) on drain pan (2), spanner (4) are rotatable through spanner pivot (3) and are installed on drain pan (2), install the spanner handle that can the pull through sharp guide structure on spanner (4).

2. A power wrench as claimed in claim 1, wherein the base shell (2) is further provided with a wrench handle auxiliary guide structure.

3. The power wrench as claimed in claim 2, wherein the auxiliary guide structure comprises a limiting post (10), the limiting post (10) is disposed on the bottom shell (2), and the side surface of the limiting post (10) can contact with the upper end surface of the wrench handle to realize a limiting effect.

4. A wrench as claimed in claim 3, wherein at least one of the retaining posts (10) is provided.

5. The power wrench as claimed in claim 1, wherein the wrench handle further comprises a pull-out limiting structure at a rear portion of the wrench handle.

6. A power wrench as claimed in claim 5, wherein the draw-out limiting structure comprises a stop nail (14), the stop nail (14) is mounted at the tail of the wrench handle, and the side surface of the head of the stop nail (14) can contact with the side wall of the wrench (4) to realize a limiting effect.

7. A power wrench as claimed in claim 6, wherein there is at least one set of said stop pins (14).

8. A power wrench as claimed in claim 1, wherein the head of the handle is provided with a locking means.

9. A power wrench as claimed in claim 8, wherein the locking device comprises a locking member (9), the middle part of the locking member (9) is rotatably mounted in a groove (8) formed in the head of the wrench handle through a rotating shaft, a hook (11) is arranged at one end of the locking member (9), the hook (11) can be matched with a hook hole (13) formed in the top end of the wrench (4) to limit the wrench handle, and an elastic member (12) is arranged between the other end of the locking member (9) far away from the hook (11) and the bottom end of the groove (8).

10. The power wrench as claimed in claim 1, further comprising a side cover (1), wherein the side cover (1) can be fastened to the bottom shell (2) to form a housing, one end of the housing is open, and the head of the wrench handle is located outside the housing.