CN217925420U - Two-section damping hinge - Google Patents

Abstract

The utility model relates to a two-period form damping hinge, including moving the hinge plate, quiet hinge plate and hinge pin, it is used for buffering to move the buffering damping mechanism of relative motion between hinge plate and the hinge pin to be equipped with in the articulated shaft cover of hinge plate, still including the location damping fin, the location damping fin is including overlapping on the hinge pin and constituting friction damping complex ring with the hinge pin, the arch has the location end on the ring, it is equipped with positioning groove on the articulated shaft cover of hinge plate to move, positioning groove stretches into in the positioning groove, positioning groove has along articulated shaft circumference and opens to backstop terminal surface and closure to the backstop terminal surface with the cooperation of location end backstop, opening to backstop terminal surface and closure to form between the backstop terminal surface and supply the location end to move in positioning groove internalization in order to impel location damping fin along with articulated shaft pivoted idle stroke, positioning end is through opening to backstop terminal surface backstop, thereby through location damping fin and hinge pin correspondence cooperation in order to provide the damping force that the hinge plate locking is hovered. The hinge plate can be positioned and a larger opening angle can be realized.

Description

Two-section damping hinge

Technical Field

The utility model relates to a hinge, especially damping hinge.

Background

A hinge, also known as a hinge, is a mechanical device used to connect two solid bodies and allow rotation between them. The existing damping hinge has the advantage of balanced damping force by the friction force generated by interference fit between the damping fin and the rotating shaft, so that the damping force exists between the movable hinge plate and the fixed hinge in a rotating manner. But traditional damping hinge does not have locate function to make the cabinet door opening degree of installation use can not obtain control, this causes the damping hinge can't satisfy some user demands. If for guaranteeing electric power cabinet's safety in utilization, the automatic design of popping out of cabinet door adoption is usually, and the cabinet door also is equipped with the damping hinge in order to guarantee the automatic security of popping out of cabinet door, but the automatic bullet of cabinet door is opened power, the self of cabinet door assembles the retardation that forms etc. and is different for the degree of opening of the automatic door of popping out of cabinet can not guarantee unanimously, thereby has the cabinet door in disorder when making a plurality of electric power cabinets use, not aesthetic defect.

Disclosure of Invention

The utility model discloses the invention purpose: for overcoming the defect that prior art exists, the utility model provides a can realize moving two-period form damping hinge of hinge plate location, can realize great opening angle simultaneously.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a two-period form damping hinge, is including moving hinge plate, quiet hinge plate and hinge pin, moves hinge plate and quiet hinge plate and articulates through the hinge pin, moves and is equipped with in the hinge pin cover of hinge plate to be used for the buffering to move the buffer damping mechanism of relative motion between hinge plate and the hinge pin, its characterized in that: the positioning damping piece comprises a ring which is sleeved on the hinge shaft and forms friction damping fit with the hinge shaft, a positioning end head protrudes from the ring, a positioning groove is arranged on the hinge shaft sleeve of the movable hinge plate and extends into the positioning groove, the positioning groove is provided with an opening-direction stopping end face and a closing-direction stopping end face which are matched with the positioning end head in a stopping way along the circumferential direction of the hinge shaft, an idle stroke for the positioning end head to move in the positioning groove to promote the positioning damping piece to rotate along with the hinge shaft is formed between the opening-direction stopping end face and the closing-direction stopping end face, and the positioning end head is stopped by the opening-direction stopping end face so as to provide damping force for stopping hovering of the movable hinge plate through corresponding fit of the positioning damping piece and the hinge shaft.

The working principle of the two-stage damping hinge of the present invention is that, the movable hinge plate is driven by the opening driving force (the driving force is usually the force for driving the movable hinge plate to automatically spring open, such as the elastic driving force from a spring hinge), the movable hinge plate rotates towards the opening direction, the buffering damping mechanism provides the buffering damping force, so as to realize the deceleration buffering of the movable hinge plate, in the initial opening process (which can be generally called as the automatic spring open stage), the positioning end of the positioning damping sheet rotates towards the stop end surface in the positioning groove, the positioning damping sheet rotates along with the hinge shaft in the idle stroke, until the positioning end touches the stop end surface, the positioning damping sheet and the hinge shaft are in damping fit, under the action of the additional increased friction damping force, the accurate stopping and hovering of the movable hinge plate are realized, thereby the initial opening angle of the movable hinge plate is limited, that is usually the automatic spring open angle of the movable hinge plate; when making two-section type damping hinge be applied to on the electric power cabinet door, can guarantee that the automatic opening position that pops open of cabinet door is unanimous. Because of the design of the positioning damping fin, additional force can be applied to the movable hinge plate again, the positioning damping fin is pushed to the positioning end face by the opening of the movable hinge plate, and the positioning damping fin and the hinge shaft rotate relatively, so that the movable hinge plate obtains a larger opening angle. The stopping and positioning of the movable hinge plate are achieved by adopting the damping force of the hinge shaft and the positioning damping sheet, the stopping force control of the movable hinge plate is easier, the abrasion of the positioning damping sheet is small, and the device has the advantages of simple structure, convenience in processing, reliability in working and long service life.

Preferably, the ring is an annular elastic open ring, one open end of the elastic open ring is provided with the positioning end head in a protruding mode along the radial direction, the positioning groove is formed in a hinge shaft sleeve of the movable hinge plate, and the elastic open ring is elastically held on the hinge shaft, so that the positioning damping sheet is in damping fit with the hinge shaft. Under this structural design, have the advantage of location damping fin simple structure, and can be convenient control damping force through the quantity of adjustment location damping fin and set for, convenient processing.

Preferably, the buffering damping mechanism comprises a decelerating damping sheet, the decelerating damping sheet comprises a split ring with an opening, the split ring is sleeved on the hinge shaft in an interference mode to form a friction damping fit, one opening end of the split ring protrudes to form a fixed end, a fixed groove is arranged in a hinge shaft sleeve of the movable hinge plate, and the fixed end is inserted into the fixed groove. Under this structural design, the damping mechanism is simple in structure. The fixing grooves and the positioning grooves are axially arranged and are axially and correspondingly communicated. This facilitates the assembly operation of the hinge.

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

Drawings

Fig. 1 is a schematic structural view of a two-stage damping hinge according to an embodiment of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a partial cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is an exploded view of a two-stage damping hinge according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a movable hinge plate according to an embodiment of the present invention.

Detailed Description

Referring to the drawings, the utility model discloses a two-stage damping hinge, including moving hinge plate 1, quiet hinge plate 2 and hinge pin 3, move hinge plate 1 and quiet hinge plate 2 and articulate through hinge pin 3, be equipped with in the hinge bush 11 of moving hinge plate 1 and be used for the buffering to move the buffering damping mechanism of relative motion between hinge plate 1 and the hinge pin 3, buffering damping mechanism adopts the following structural design among the prior art, specifically does: the buffer damping mechanism comprises a deceleration damping fin 4, the number of the deceleration damping fins 4 can be set as required, the deceleration damping fin 4 comprises an open ring 41 with an opening, the open ring 41 is sleeved on the hinge shaft 3 in an interference manner to form friction damping fit, one open end of the open ring 41 is protruded with a fixed end 42, a fixed groove 111 is arranged in the hinge shaft sleeve 11 of the movable hinge plate 1, and the fixed end 42 is inserted into the fixed groove 111; for solving the positioning problem of the existing damping hinge, the following improved structure design is adopted: the hinge plate comprises a hinge shaft 3 and a positioning damping sheet 5, wherein the positioning damping sheet 5 comprises a ring 51 which is sleeved on the hinge shaft 3 and forms friction damping fit with the hinge shaft 3, a positioning end 52 is protruded on the ring 51, a positioning groove 112 is arranged on a hinge shaft sleeve 11 of the movable hinge plate 1, the positioning end 52 extends into the positioning groove 112, the positioning groove 112 is provided with an opening direction stopping end surface 1121 and a closing direction stopping end surface 1122 which are matched with the positioning end 52 in a stopping way along the circumferential direction of the hinge shaft 3, an idle stroke for enabling the positioning end 52 to move in the positioning groove 112 to drive the positioning damping sheet 5 to rotate along with the hinge shaft 3 is formed between the opening direction stopping end surface 1121 and the closing direction stopping end surface 1122, and the positioning end 52 is stopped by the opening direction stopping end surface 1121, so that the positioning damping sheet 5 is correspondingly matched with the hinge shaft 3 to provide damping force for stopping and hovering of the movable hinge plate 1.

The ring 51 is an annular elastic open ring, one open end of the elastic open ring is provided with the positioning end 52 in a protruding manner along the radial direction, the positioning groove 112 is formed in the hinge shaft sleeve 11 of the movable hinge plate 1, and the elastic open ring is elastically held on the hinge shaft 3, so that the positioning damping sheet 5 is in damping fit with the hinge shaft 3. The elastic opening ring is in interference fit with the hinge shaft to form friction damping, the positioning damping fins are simple in structure and convenient to install, the damping force setting can be conveniently controlled by adjusting the number of the positioning damping fins, and the processing is convenient. It is to be understood that the ring may be shaped like a washer, and the elastic member may axially press the ring against the damping washer fixed to the hinge shaft to achieve frictional damping.

Moreover, under the design that the ring 51 is an annular elastic open ring, the fixing grooves 111 and the positioning grooves 112 can be axially arranged, and the fixing grooves 111 and the positioning grooves 112 are axially and correspondingly communicated. This facilitates the assembly operation of the hinge.

The working principle of the two-stage damping hinge of the present invention is that, the movable hinge plate 1 is driven by the opening driving force (the driving force is usually the force for driving the movable hinge plate to automatically spring open, such as the elastic driving force from a spring hinge), the movable hinge plate 1 rotates to the opening direction, the buffering damping mechanism provides the buffering damping force to realize the speed reduction buffering of the movable hinge plate, in the initial opening process (which can be generally called as the automatic spring open stage), the positioning end 52 of the positioning damping fin 5 rotates to the stop end 1121 in the positioning groove 112, the positioning damping fin 5 rotates in the idle stroke along with the hinge shaft 3 until the positioning end 52 touches the stop end 1121, the positioning damping fin 5 and the hinge shaft 3 are in damping fit, under the action of the additionally increased friction damping force, the accurate stopping hovering of the movable hinge plate 1 is realized, thereby the initial opening angle of the movable hinge plate is limited, that is usually the automatic spring open angle of the movable hinge plate; due to the adoption of the design of the positioning damping fin, an additional force can be applied to the movable hinge plate again, the positioning damping fin 5 is pushed to the positioning end surface 1121 by the opening of the movable hinge plate 1, and the positioning damping fin 5 and the hinge shaft 3 rotate relatively, so that the movable hinge plate 1 obtains a larger opening angle. During the hinge closing operation, the movable hinge plate rotates towards the closing direction, and the positioning end 52 of the positioning damping sheet 5 rotates relatively in the positioning groove 112 until the positioning end 52 and the closing direction stop end face 1122 contact the stop; in the hinge closing operation process under the condition that a certain opening angle still exists after the hinge automatically bounces off, a further need continues to apply closing force to the movable hinge plate 1, and the positioning damping sheet 5 pushes the stop end face 1122 to rotate in the closing direction of the movable hinge plate 1 until the hinge is completely closed. The utility model discloses a hinge adopts the design of two-period form damping structure, and buffering damping mechanism satisfies the speed reduction buffering effect of traditional damping hinge, and the design of location damping fin realizes that the accurate reliable location of moving the hinge plate hovers, and the damping force of hinge pin and location damping fin reaches the locking location of moving the hinge plate, and the locking force control of moving the hinge plate is easier, and the wearing and tearing of location damping fin are little, have simple structure, processing convenience, reliable operation and long service life's advantage.

Claims (4)

1. The utility model provides a two-section type damping hinge, is including moving hinge plate, quiet hinge plate and hinge pin, moves hinge plate and quiet hinge plate and hinges through the hinge pin, moves and is equipped with in the hinge pin cover of hinge plate to be used for buffering to move the buffering damping mechanism of relative motion between hinge plate and the hinge pin, its characterized in that: the positioning damping piece comprises a ring which is sleeved on the hinge shaft and forms friction damping fit with the hinge shaft, a positioning end head protrudes from the ring, a positioning groove is arranged on the hinge shaft sleeve of the movable hinge plate and extends into the positioning groove, the positioning groove is provided with an opening-direction stopping end face and a closing-direction stopping end face which are matched with the positioning end head in a stopping way along the circumferential direction of the hinge shaft, an idle stroke for the positioning end head to move in the positioning groove to promote the positioning damping piece to rotate along with the hinge shaft is formed between the opening-direction stopping end face and the closing-direction stopping end face, and the positioning end head is stopped by the opening-direction stopping end face so as to provide damping force for stopping hovering of the movable hinge plate through corresponding fit of the positioning damping piece and the hinge shaft.

2. The two-stage damped hinge of claim 1, wherein: the ring is an annular elastic opening ring, one opening end of the elastic opening ring is provided with the positioning end head in a protruding mode along the radial direction, the positioning groove is formed in the hinge shaft sleeve of the movable hinge plate, and the elastic opening ring is elastically held on the hinge shaft, so that the positioning damping sheet is in damping fit with the hinge shaft.

3. The two-piece damped hinge of claim 1, wherein: the buffer damping mechanism comprises a deceleration damping sheet, the deceleration damping sheet comprises a split ring with an opening, the split ring is sleeved on the hinge shaft in an interference mode to form friction damping fit, one opening end of the split ring protrudes to form a fixed end, a fixed groove is arranged in the hinge shaft sleeve of the movable hinge plate, and the fixed end is inserted into the fixed groove.

4. The two-piece damped hinge of claim 2, wherein: the buffering damping mechanism comprises a decelerating damping sheet, the decelerating damping sheet comprises a split ring with an opening, the split ring is sleeved on the hinge shaft in an interference mode to form friction damping fit, one opening end of the split ring protrudes to form a fixed end, a fixed groove is arranged in a hinge shaft sleeve of the movable hinge plate, the fixed end is inserted into the fixed groove, the fixed groove and the positioning groove are axially arranged, and the fixed groove and the positioning groove are axially and correspondingly communicated.

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