CN215558404U

CN215558404U - Prevent connecting rod of quadrangle deformation

Info

Publication number: CN215558404U
Application number: CN202121793105.9U
Authority: CN
Inventors: 丛海军; 张国庆
Original assignee: Shanghai Fitcher Intelligent Technology Co ltd
Current assignee: Shanghai Fitcher Intelligent Technology Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-18
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a connecting rod capable of preventing quadrilateral deformation, which comprises two levers (1), a power assembly (2) and a limiting rod (6); the power assembly (2) is hinged to the upper end of one lever (1), and an output shaft of the power assembly (2) is hinged to the upper end of the other lever (1); the centers of the two levers (1) are hinged with a connecting rod (3), and the inner sides of the two levers (1) are both provided with a clamping beam (4); one end of the limiting rod (6) is arranged right above one end of the connecting rod (3) and is hinged to a lever (1); the other end of the limiting rod (6) is arranged below the other end of the connecting rod (3), and the other end of the limiting rod (6) is hinged to the other lever (1). The utility model can only be opened and closed integrally, so when the pulling force of two or more hoisting points of the crane is uneven, the quadrilateral structure fundamentally avoids the possibility of deformation of the whole structure to one side, and the safety is greatly improved.

Description

Prevent connecting rod of quadrangle deformation

Technical Field

The utility model relates to the field of wind power generation, in particular to a connecting rod capable of preventing quadrilateral deformation.

Background

As shown in fig. 1, in practical engineering applications, there are many occasions where clamping an object is realized by using a parallelogram in cooperation with an oil cylinder or an electric cylinder as a power source, and a clamping end can move within a certain range to clamp an object with a certain width. When the clamping fixture is used as hoisting equipment, due to the instability of a parallelogram, when the pulling force of two or more hoisting points is uneven, the whole quadrilateral structure is easy to deform to one side, so that the clamping force of the fixture is influenced, and potential safety hazards exist.

Disclosure of Invention

The utility model aims to solve the technical problem that the connecting rod capable of preventing the quadrilateral deformation can only be opened and closed integrally, so that when the tension of two or more hoisting points hoisted is uneven, the quadrilateral structure fundamentally avoids the possibility that the whole structure deforms to one side, and the safety is greatly improved.

The connecting rod for preventing the quadrilateral deformation is realized by the following technical scheme: comprises two levers, a power component and a limiting rod;

the power assembly is hinged at the upper end of one lever, and an output shaft of the power assembly is hinged at the upper end of the other lever; the centers of the two levers are hinged with a connecting rod, and the inner sides of the two levers are both provided with a clamping beam; one end of the limiting rod is arranged right above one end of the connecting rod and is hinged on a lever; the other end of the limiting rod is arranged below the other end of the connecting rod, and the other end of the limiting rod is hinged to the other lever.

As the preferred technical scheme, both ends of the limiting rod are provided with the fixed shafts and the limiting nuts, and both ends of the limiting rod are hinged to the two levers through the fixed shafts and the limiting nuts.

Preferably, the clamped piece is clamped between the clamping beams at the inner sides of the two levers.

As a preferred technical scheme, the power assembly is an oil cylinder or an electric cylinder.

The utility model has the beneficial effects that: the utility model can only be opened and closed integrally, so when the pulling force of two or more hoisting points of the crane is uneven, the quadrilateral structure fundamentally avoids the possibility of deformation of the whole structure to one side, and the safety is greatly improved.

Drawings

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

FIG. 1 is a schematic plan view of a prior art structure;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic diagram of the point location of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 2-3, the connecting rod for preventing quadrilateral deformation of the utility model comprises two levers 1, a power assembly 2 and a limiting rod 6;

the power assembly 2 is hinged to the upper end of one lever 1, and an output shaft of the power assembly 2 is hinged to the upper end of the other lever 1; the centers of the two levers 1 are hinged with a connecting rod 3, and the inner sides of the two levers 1 are both provided with a clamping beam 4; one end of the limiting rod 6 is arranged right above one end of the connecting rod 3 and is hinged on a lever 1; the other end of the limiting rod 6 is arranged below the other end of the connecting rod 3, and the other end of the limiting rod 6 is hinged to the other lever 1.

In this embodiment, the both ends of gag lever post 6 all are provided with fixed axle 7 and stop nut 8, and the both ends of gag lever post 6 all articulate on two levers 1 through fixed axle 7 and stop nut 8.

In this embodiment, the clamp beams 4 on the inner sides of the two levers 1 clamp the clamped piece 5.

In this embodiment, the power assembly 2 is an oil cylinder or an electric cylinder.

The working principle is as follows:

as shown in fig. 4, the hinge point of the power assembly and the hinge point of the output shaft of the power assembly are respectively set as a point a and a point B; taking the hinged point of the connecting rod on the two levers as a point C and a point D, arranging a point E right above one end of the connecting rod, and arranging a point F right below the other end of the connecting rod; one end of the limiting rod is arranged at a point F right above the connecting rod through a fixed shaft, the other end of the limiting rod is arranged at a point E right below the connecting rod through the fixed shaft, the connecting rod is hinged with the fixed shaft, and the fixed shaft is arranged on the lever; the distance a from the fixed shaft E to the connecting rod hinge point D is required to be equal to the distance b from the fixed shaft F to the connecting rod hinge point C, so that when the original quadrilateral clamp is opened or closed, the stroke of the end point E of the limiting rod on one side of the connecting rod is completely equal to the stroke of the other end point F of the limiting rod, the moving directions are the same, and the original quadrilateral clamp cannot be influenced to be opened or closed.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a prevent connecting rod of quadrangle deformation which characterized in that: comprises two levers (1), a power component (2) and a limiting rod (6);

the power assembly (2) is hinged to the upper end of one lever (1), and an output shaft of the power assembly (2) is hinged to the upper end of the other lever (1); the centers of the two levers (1) are hinged with a connecting rod (3), and the inner sides of the two levers (1) are both provided with a clamping beam (4); one end of the limiting rod (6) is arranged right above one end of the connecting rod (3) and is hinged to a lever (1); the other end of the limiting rod (6) is arranged below the other end of the connecting rod (3), and the other end of the limiting rod (6) is hinged to the other lever (1).

2. The quadrilateral deformation resistant connecting rod of claim 1, wherein: and both ends of the limiting rod (6) are provided with a fixed shaft (7) and a limiting nut (8), and both ends of the limiting rod (6) are hinged on the two levers (1) through the fixed shaft (7) and the limiting nut (8).

3. The quadrilateral deformation resistant connecting rod of claim 1, wherein: the clamping beams (4) at the inner sides of the two levers (1) clamp a clamped piece (5).

4. The quadrilateral deformation resistant connecting rod of claim 1, wherein: the power assembly (2) is an oil cylinder or an electric cylinder.