CN112431844B

CN112431844B - Hinge locking mechanism

Info

Publication number: CN112431844B
Application number: CN202011194116.5A
Authority: CN
Inventors: 荣星; 陈亚洲; 胡志超; 李波; 潘川川; 陈少炯; 史刚林; 陈军; 魏仁晖; 张琦豪
Original assignee: Jimei University
Current assignee: Jimei University
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2023-12-05
Anticipated expiration: 2040-10-30
Also published as: CN112431844A

Abstract

The invention discloses a hinge locking mechanism which comprises a first connecting piece, a second connecting piece, a plug connector, a sliding sleeve and a button, wherein a jack is arranged in the first connecting piece; the second connecting piece is hinged with the first connecting piece, and a first clamping groove and a second clamping groove are sequentially formed in the second connecting piece; the plug connector can be axially and movably arranged in the second connecting piece, and a first elastic reset piece is arranged between the plug connector and the second connecting piece; the sliding sleeve is sleeved at the hinge joint of the second connecting piece and the first connecting piece in an axial sliding manner, and is fixedly connected with the plug connector; the button is hinged on the sliding sleeve, and a bolt penetrating through the sliding sleeve is arranged at one end of the button. The invention improves the use safety and has simple and convenient operation.

Description

Hinge locking mechanism

Technical Field

The invention relates to the technical field of locking mechanisms, in particular to a hinge locking mechanism.

Background

The hinge locking mechanism has very wide application, such as the head of folding bicycles and scooters, the support leg of clothes hangers, the support leg of folding tables, the lamp post of folding desk lamps, etc. The folding mechanism can save storage and transportation space, and the folding mechanism can be used without opening the hinge locking mechanism.

Among the prior art, hinge locking mechanism includes folding upper cover, folding lower cover and retaining member, and the retaining member includes spanner, eccentric block and compresses tightly the piece, and folding upper cover is articulated through the pivot with folding lower cover, and spanner and the embedded eccentric block of one end of compressing tightly the piece are equipped with the eccentric hole on the eccentric block, and the eccentric hole of eccentric block is worn to locate in the pivot, when folding upper cover lid was in folding lower cover, the spanner can drive the motion of compressing tightly the piece through the eccentric block to with folding upper cover and folding lower cover locking and loosening.

The hinge locking mechanism is not provided with a safety protection device for preventing false touch, so that in the use process, a spanner controlling the folding mechanism is likely to be sprung open due to false operation of personnel, hooking of clothes or other foreign matters, and the like, so that the upper folding cover and the lower folding cover are opened, and safety accidents and even personnel injury are caused; in the hinge locking mechanism, the wrench can only be arranged on one side of the hinge connection and cannot be arranged in a place which is not easy to touch by mistake according to requirements; the upper folding cover, the lower folding cover, the wrench and the pressing piece of the hinge locking mechanism form a hinge on the same axis, so that in order to prevent the mechanism from shaking, a gap at the hinge is necessarily small, and as the folding times are increased, the abrasion of the parts is aggravated, so that the gap is increased, and the upper folding cover and the lower folding cover rotate and shake along the axis direction of the rotating shaft and generate noise.

Disclosure of Invention

The present invention aims to solve at least to some extent one of the technical problems in the above-described technology. Therefore, the invention aims to provide a hinge locking mechanism to improve the use safety and simplify the operation; avoiding loosening or shaking caused by long-time use and multiple opening and closing.

To achieve the above object, an embodiment of the present invention provides a hinge locking mechanism, including:

the first connecting piece is provided with a jack;

the second connecting piece is hinged with the first connecting piece, and a first clamping groove and a second clamping groove are sequentially formed in the second connecting piece;

the plug connector can be axially and movably arranged in the second connecting piece, and a first elastic reset piece is arranged between the plug connector and the second connecting piece;

the sliding sleeve can axially and slidably sleeved at the hinge joint of the second connecting piece and the first connecting piece, and the sliding sleeve is fixedly connected with the plug connector;

the button is hinged to the sliding sleeve, and a bolt penetrating through the sliding sleeve is arranged at one end of the button; when the plug pin is inserted into the first clamping groove, the sliding sleeve is sleeved on the second connecting piece and the first connecting piece at the same time, and the plug connector is inserted into the jack; when the bolt is inserted into the second clamping groove, the sliding sleeve is sleeved on the second connecting piece, the first connecting piece is released from being sleeved, and the plug connector is separated from the jack.

According to the hinge locking mechanism provided by the embodiment of the invention, when the first connecting piece and the second connecting piece are locked, the first connecting piece is rotated to a position overlapped with the axis of the second connecting piece, the sliding sleeve drives the bolt of the button to be inserted into the first clamping groove, at the moment, the sliding sleeve is sleeved on the first connecting piece and the second connecting piece at the same time, and the plug connector is inserted into the jack, so that the strength is enhanced and the double locking effect is achieved, and the first connecting piece and the second connecting piece are locked.

The first elastic reset piece is arranged between the plug-in piece and the second connecting piece in a locking state, and is always used for providing elasticity for the plug-in piece to be inserted into the jack of the first connecting piece, so that even if a button is touched by mistake, the plug pin of the plug-in piece is separated from the first clamping groove, under the action of the elasticity of the first elastic reset piece, the plug-in piece cannot be separated from the jack of the first connecting piece, the sliding sleeve cannot be separated from the first connecting piece, the hinge locking mechanism is required to be opened, the push button is required to be pressed down, and meanwhile, the sliding force is applied to compress the first elastic reset piece, so that the reliability of hinge connection is ensured, and the use safety is improved.

When the first connecting piece and the second connecting piece are folded, the button is pressed to enable the bolt of the button to be tilted upwards to be separated from the first clamping groove of the second connecting piece, and meanwhile the sliding sleeve moves away from the hinge joint of the first connecting piece and the second connecting piece until the bolt of the button is embedded into the second clamping groove of the second connecting piece, at the moment, the sliding sleeve is sleeved on the second connecting piece and releases the sleeve connection of the first connecting piece, the plug connector is separated from the jack, and then folding action can be executed, so that the first connecting piece rotates to a required folding position relative to the second connecting piece. Therefore, the invention improves the use safety and has simple and convenient operation.

In addition, the hinge locking mechanism according to the embodiment of the present invention may further have the following additional technical features:

further, the other end of the button is provided with a second elastic reset piece, one end of the second elastic reset piece abuts against the button, and the other end of the second elastic reset piece abuts against the sliding sleeve.

Further, the jack of the first connecting piece is a conical hole, and the insertion end of the plug connector and the conical hole are correspondingly arranged to be conical bolts.

Further, the tapered plug pin is in clearance fit with the tapered hole of the first connecting piece.

Further, a gap is left between the tapered plug and the end of the first connector; a gap is reserved between the bolt of the button and the first clamping groove of the second connecting piece.

Further, the sliding sleeve is connected with the plug connector through a rivet, and a sliding groove for the rivet to slide is formed in the second connector along the axial direction.

Further, an abutting plate is arranged in the second connecting piece, one end of the first elastic resetting piece abuts against the abutting plate, and the other end of the first elastic resetting piece abuts against the plug connector.

Further, the plug connector comprises a limiting rod, one end of the limiting rod is connected with the plug connector, the other end of the limiting rod can slide through the abutting plate and is provided with a limiting head, and a limiting gap is reserved between the limiting head and the abutting plate.

Further, when the sliding sleeve is sleeved on the second connecting piece and the first connecting piece at the same time, the first connecting piece and the second connecting piece are coaxially arranged.

Further, the sliding sleeve comprises an operating handle which is sleeved on the sliding sleeve.

Drawings

FIG. 1 is a schematic view of a hinge locking mechanism according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a hinge locking mechanism according to an embodiment of the present invention in a locked state;

FIG. 3 is a cross-sectional view of a hinge locking mechanism in a folded state according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a second connector according to an embodiment of the present invention.

Description of the reference numerals

First connector 1 jack 11

First clamping groove 21 of second connecting piece 2

The second clamping groove 22 is provided with a first elastic reset piece 23

Chute 24 abuts against plate 25

Plug connector 3 sliding sleeve 4

Button 5 latch 51

Second elastic restoring element 52 rivet 6

Stop lever 7 stop head 71

The handle 8 is operated.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

When the first connecting piece and the second connecting piece are locked, namely the locking function is realized, the first connecting piece is rotated to a position overlapped with the axis of the second connecting piece, the sliding sleeve drives the bolt of the button to be inserted into the first clamping groove, and at the moment, the sliding sleeve is sleeved on the first connecting piece and the second connecting piece at the same time, and the inserting piece is inserted into the inserting hole, so that the first connecting piece and the second connecting piece are locked. The first elastic reset piece is arranged between the plug-in piece and the second connecting piece in a locking state, and is always used for providing elasticity for the plug-in piece to be inserted into the jack of the first connecting piece, so that even if a button is touched by mistake, the plug pin of the plug-in piece is separated from the first clamping groove, under the action of the elasticity of the first elastic reset piece, the plug-in piece cannot be separated from the jack of the first connecting piece, the sliding sleeve cannot be separated from the first connecting piece, the hinge locking mechanism is required to be opened, the push button is required to be pressed down, and meanwhile, the sliding force is applied to compress the first elastic reset piece, so that the reliability of hinge connection is ensured, and the use safety is improved.

When the first connecting piece and the second connecting piece are folded, namely, when the folding function is realized, the button is pressed to enable the bolt of the button to be upturned to be separated from the first clamping groove of the second connecting piece, meanwhile, the sliding sleeve moves away from the hinge joint of the first connecting piece and the second connecting piece until the bolt of the button is embedded into the second clamping groove of the second connecting piece, at the moment, the sliding sleeve is sleeved on the second connecting piece and releases the sleeving of the first connecting piece, the plug connector is separated from the jack, and then folding action can be executed to enable the first connecting piece to rotate to a required folding position relative to the second connecting piece. Therefore, the invention improves the use safety and has simple and convenient operation.

In order that the above-described aspects may be better understood, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, a hinge locking mechanism according to an embodiment of the present invention includes a first connector 1, a second connector 2, a plug connector 3, a sliding sleeve 4 and a button 5.

The first connector 1 is provided with a jack 11 therein. The second connecting piece 2 is hinged with the first connecting piece 1, and a first clamping groove 21 and a second clamping groove 22 are sequentially formed in the second connecting piece 2. The plug connector 3 is axially movably arranged in the second connecting piece 2, a first elastic reset piece 23 is arranged between the plug connector 3 and the second connecting piece 2, and the first elastic reset piece 23 can be a compression spring. The sliding sleeve 4 can axially slide and is sleeved at the hinge joint of the second connecting piece 2 and the first connecting piece 1, and the sliding sleeve 4 is fixedly connected with the plug connector 3. The button 5 is hinged on the sliding sleeve 4, and one end of the button 5 is provided with a bolt 51 penetrating through the sliding sleeve 4. When the plug pin 51 is inserted into the first clamping groove 21, the sliding sleeve 4 is sleeved on the second connecting piece 2 and the first connecting piece 1 at the same time, and the plug connector 3 is inserted into the jack 11. When the plug pin 51 is inserted into the second clamping groove 22, the sliding sleeve 4 is sleeved on the second connecting piece 2, the first connecting piece 1 is released from the sleeve, and the plug connector 3 is separated from the jack 11.

As shown in fig. 2, when the first connector 1 and the second connector 2 are locked, the first connector 1 is rotated to a position overlapping with the axis of the second connector 2, the sliding sleeve 4 drives the plug pin 51 of the button 5 to be inserted into the first clamping groove 21, at this time, the sliding sleeve 4 is sleeved on the first connector 1 and the second connector 2 at the same time, and the plug connector 3 is inserted into the insertion hole 11, so that the strength reinforcing and double locking effects are achieved, and the first connector 1 and the second connector 2 are locked.

Preferably, in the locking state, when the sliding sleeve 4 is sleeved on the second connecting piece 2 and the first connecting piece 1 at the same time, the first connecting piece 1 and the second connecting piece 2 are coaxially arranged, so that the whole structure is compact.

In the locking state of locking the first connecting piece 1 and the second connecting piece 2, as the first elastic reset piece 23 is arranged between the plug-in piece 3 and the second connecting piece 2, the first elastic reset piece 23 always provides elasticity for the plug-in piece 3 to be inserted into the jack 11 of the first connecting piece 1, so that even if the push button 5 is touched by mistake to enable the plug pin 51 to be separated from the first clamping groove 21, under the action of the elasticity of the first elastic reset piece 23, the plug-in piece 3 cannot be separated from the jack 11 of the first connecting piece 1, the sliding sleeve 4 cannot be separated from the first connecting piece 1, the hinge locking mechanism can be realized only by pressing the push button 5 and applying sliding force to compress the first elastic reset piece 23, and double self-locking ensures the reliability of hinge connection, thereby improving the use safety.

As shown in fig. 3, when the first connector 1 and the second connector 2 are folded, the button 5 is pressed to enable the latch 51 of the button to tilt upwards to be separated from the first clamping groove 21 of the second connector 2, and meanwhile the sliding sleeve 4 moves away from the hinge joint of the first connector 1 and the second connector 2 until the latch 51 of the button 5 is embedded into the second clamping groove 22 of the second connector 2, at this time, the sliding sleeve 4 is sleeved on the second connector 2 and releases the sleeve connection of the first connector 1, the plug connector 3 is separated from the jack 11, and then the folding action can be performed to enable the first connector 1 to rotate to a required folding position relative to the second connector 2. Therefore, the invention improves the use safety and has simple and convenient operation.

In some examples, the other end of the button 5 is provided with a second elastic return 52, which second elastic return 52 may be a compression spring, one end of the second elastic return 52 abutting the button 5 and the other end abutting the sliding sleeve 4. The button 5 realizes self-locking under the action of the second elastic reset piece 52, so that safety problems caused by mistakenly pressing the button 5 are prevented. Meanwhile, the button 5 can be arranged at any position on the sliding sleeve 4 which is not easy to touch by mistake according to the requirement.

In some examples, the insertion hole 11 of the first connector 1 is a tapered hole, and the insertion end of the plug 3 is provided as a tapered plug corresponding to the tapered hole. The conical bolt is tightly matched with the conical hole of the first connecting piece 1 to realize locking, the conical bolt and the matching surface on the first connecting piece 1 are worn along with the increase of the using times, the matching surface between the conical bolt and the first connecting piece 1 is more closely and precisely worn, the conical bolt and the first connecting piece 1 are tightly matched and cannot be separated under the action of the first elastic resetting piece 23, the purposes of preventing the first connecting piece 1 and the second connecting piece 2 from rotating along the axial direction and swinging along the radial direction are achieved, and the problems of overlarge gap and relative sliding and noise caused by the wear are solved. The matching taper of the tapered plug pin and the tapered hole can select different tapers according to the use situation and the requirement.

Preferably, the tapered plug pin is in clearance fit with the tapered hole of the first connector 1. With the increase of the use times, the mating surfaces on the plug connector 3 and the first connector 1 are worn, so that the mating surfaces are more closely and precisely.

In some examples, a gap is left between the tapered latch and the end of the first connector 1, and at the same time, a gap is left between the latch 51 of the button 5 and the first clamping groove 21 of the second connector 2, so as to compensate for the wear of the tapered latch and the mating surface on the first connector 1, and ensure that the tapered latch is tightly and gaplessly matched with the first connector 1 under the action of the first elastic reset member 23.

In some examples, the sliding sleeve 4 is connected with the plug-in unit 3 through the rivet 6, and a sliding groove 24 for sliding the rivet 6 is axially arranged on the second connecting piece 2, so that the plug-in unit 3 is driven to synchronously axially move through the rivet 6 when the sliding sleeve 4 slides.

In some examples, the second connecting piece 2 is provided with an abutting plate 25, one end of the first elastic reset piece 23 abuts against the abutting plate 25, and the other end of the first elastic reset piece 23 abuts against the plug piece 3, so that the plug piece 3 is tightly matched with the first connecting piece 1 and cannot be separated under the action of the first elastic reset piece 23. The provision of the abutment plate 25 makes the first elastic restoring member 23 convenient to assemble, and makes the first elastic restoring member 23 not deformed in a long-term use state.

In some examples, the invention further comprises a limiting rod 7, one end of the limiting rod 7 is connected with the plug connector 3, the other end of the limiting rod 7 can slide through the abutting plate 25 and is provided with a limiting head 71, and a limiting gap is reserved between the limiting head 71 and the abutting plate 25. The limiting rod 7 prevents the rotation along the axial direction and the swinging along the radial direction between the first connecting piece 1 and the second connecting piece 2, thereby solving the problems of overlarge gap and relative sliding and noise caused by abrasion; at the same time, the time limit head 71 can prevent the situation that the plug connector 3 excessively deviates to the direction of the first connector 1 due to abrasion, thereby influencing the use safety.

In some examples, the present invention further comprises an operating handle 8, wherein the operating handle 8 is sleeved on the sliding sleeve 4. The size of the operating handle 8 is designed according to comfortable hand holding and convenient force application, the appearance design is simple and attractive, and different materials can be selected for different occasions, so that the operating handle is more comfortable.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A hinge locking mechanism comprising:

the first connecting piece is provided with a jack;

2. A hinge locking mechanism as claimed in claim 1 wherein a second resilient return member is provided at the other end of the button, the second resilient return member having one end abutting the button and the other end abutting the sliding sleeve.

3. The hinge locking mechanism of claim 2, wherein the insertion hole of the first connector is a tapered hole, and the insertion end of the plug member is provided as a tapered plug corresponding to the tapered hole.

4. A hinge locking mechanism as claimed in claim 3 wherein said tapered spigot engages with said tapered bore of said first connector without play.

5. A hinge locking mechanism as claimed in claim 4 wherein said tapered plug leaves a gap between said tapered plug and said first connector end; a gap is reserved between the bolt of the button and the first clamping groove of the second connecting piece.

6. The hinge locking mechanism of claim 5, wherein the sliding sleeve is connected to the plug-in unit by a rivet, and the second connecting unit is provided with a sliding slot for sliding the rivet in the axial direction.

7. The hinge locking mechanism of claim 6, wherein an abutment plate is provided in the second connector, one end of the first resilient return member abuts against the abutment plate, and the other end of the first resilient return member abuts against the connector.

8. The hinge locking mechanism of claim 7, further comprising a stop lever, wherein one end of the stop lever is connected to the plug, and the other end of the stop lever is slidably disposed through the abutment plate and provided with a stop head, and a stop gap is reserved between the stop head and the abutment plate.

9. The hinge locking mechanism of claim 1, wherein said first connector is coaxially disposed with said second connector when said sliding sleeve is simultaneously engaged with said second connector and said first connector.

10. A hinge lock mechanism according to any one of claims 1 to 9, further comprising an operating handle, said operating handle being sleeved on said sliding sleeve.