CN112431844B - A hinge locking mechanism - Google Patents

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

A hinge locking mechanism

Technical field

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

Background technique

The hinge locking mechanism is widely used, such as the front of folding bicycles and scooters, the legs of clothes drying racks, the legs of folding tables, the light poles of folding desk lamps, etc. The use of a folding mechanism can save storage and transportation space, and the use of the folding mechanism is inseparable from the hinge locking mechanism.

In the prior art, the hinge locking mechanism includes a folding upper cover, a folding lower cover and a locking member. The locking member includes a wrench, an eccentric block and a pressing member. The folding upper cover and the folding lower cover are hinged through a rotating shaft. The wrench and pressing member An eccentric block is embedded in one end of the piece, and the eccentric block is provided with an eccentric hole. The rotating shaft passes through the eccentric hole of the eccentric block. When the folded upper cover is covered with the folded lower cover, the wrench can drive the pressing member to move through the eccentric block. Thereby locking and unlocking the folding upper cover and the folding lower cover.

The above-mentioned hinge locking mechanism does not have a safety protection device to prevent accidental contact. Therefore, during use, it is likely that due to incorrect operation by personnel, hooking of clothes or other foreign objects, etc., the wrench that controls the folding mechanism will spring open, causing the upper and lower folding covers to open. , causing safety accidents and even personal injuries; in the above-mentioned hinge locking mechanism, the wrench can only be installed on one side of the hinge connection, and cannot be installed in a place where it is not easily touched by accident according to requirements; the upper and lower folding covers of the above-mentioned hinge locking mechanism , the wrench and the pressing piece form a hinge on the same axis. In order to prevent the mechanism from shaking, the gap at the hinge must be very small. As the number of folds increases, the wear of the components increases, so the gap increases, causing the up and down folding. The cover rotates and shakes along the axis of the shaft and generates noise.

Contents of the invention

The present invention aims to solve one of the technical problems in the above-mentioned technologies, at least to a certain extent. Therefore, the purpose of the present invention is to propose a hinge locking mechanism to improve the safety of use and make the operation easier; to avoid loosening or shaking caused by long-term use and multiple opening and closing.

In order to achieve the above object, an embodiment of the present invention proposes a hinge locking mechanism, which includes:

A first connecting piece, the first connecting piece is provided with a socket;

a second connecting piece, the second connecting piece is hingedly connected to the first connecting piece, and the second connecting piece is sequentially provided with a first clamping slot and a second clamping slot;

A plug-in connector, which is axially movable and disposed in the second connector, and a first elastic return member is provided between the plug-in connector and the second connector;

Sliding sleeve, the sliding sleeve can be axially slidably sleeved at the hinge joint between the second connecting piece and the first connecting piece, and the sliding sleeve is fixedly connected to the plug connector;

Button, the button is hinged on the sliding sleeve, and one end of the button is provided with a plug passing through the sliding sleeve; when the plug is inserted into the first slot, the sliding sleeve is sleeved on the sliding sleeve at the same time. The second connecting piece is on the first connecting piece, and the plug connector is inserted into the jack; when the plug is inserted into the second slot, the sliding sleeve is sleeved on the second connecting piece. On and off the socket of the first connecting piece, and the plug connector is separated from the socket.

According to a hinge locking mechanism according to an embodiment of the present invention, when locking the first connecting piece and the second connecting piece, the first connecting piece is rotated to a position coincident with the axis of the second connecting piece, and the sliding sleeve drives the latch of the button Insert the first card slot. At this time, 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 socket to enhance the strength and double locking, thereby connecting the first connection piece. The piece is locked with the second connecting piece.

In the locked state of the first connecting piece and the second connecting piece, since there is a first elastic return member between the plug connector and the second connector, the first elastic return member always inserts the plug connector into the first connector. The socket provides elastic force. Therefore, even if the button is accidentally touched to cause the latch to detach from the first slot, under the elastic force of the first elastic return member, the plug connector will not detach from the socket of the first connecting member, and the sliding sleeve will not detach from the first slot. It will not break away from the first connecting piece. To open the hinge locking mechanism, you must press the button and apply sliding force to compress the first elastic return piece. The double self-locking ensures the reliability of the hinge connection, thereby improving the safety of use.

When folding the first connecting piece and the second connecting piece, pressing the button causes the latch to tilt up and disengage from the first slot of the second connecting piece, and at the same time, the sliding sleeve moves away from the hinge of the first connecting piece and the second connecting piece. Until the latch of the button is embedded in the second slot of the second connector, at this time, the sliding sleeve is sleeved on the second connector and the first connector is unsocketed, and the connector is separated from the jack, and then the folding can be performed action to rotate the first connecting piece relative to the second connecting piece to the required folding position. Therefore, the present invention improves the safety of use and is easy to operate.

In addition, the hinge locking mechanism proposed according to the above embodiments of the present invention may also have the following additional technical features:

Furthermore, a second elastic return member is provided at the other end of the button. One end of the second elastic return member is against the button and the other end is against the sliding sleeve.

Further, the insertion hole of the first connector is a tapered hole, and the insertion end of the plug connector is configured as a tapered plug corresponding to the tapered hole.

Further, the tapered plug fits the tapered hole of the first connecting piece without any gap.

Further, there is a gap between the tapered plug and the end of the first connecting member; there is a gap between the plug of the button and the first slot of the second connecting member.

Further, the sliding sleeve and the plug-in connector are connected by rivets, and the second connecting member is provided with a slide groove along the axial direction for the rivet to slide.

Further, a resisting plate is provided in the second connecting member, one end of the first elastic restoring member abuts the resisting plate, and the other end of the first elastic restoring member abuts the plug connector.

Furthermore, it also includes a limiting rod. One end of the limiting rod is connected to the plug connector. The other end of the limiting rod can slide through the abutment plate and is provided with a limiting head. The limiting head is connected to the A limiting gap is reserved between the resisting plates.

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.

Furthermore, it also includes an operating handle, which is sleeved on the sliding sleeve.

Description of drawings

Figure 1 is a schematic structural diagram of a hinge locking mechanism according to an embodiment of the present invention;

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

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

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

Label description

First connector 1 jack 11

Second connecting member 2 First card slot 21

The second slot 22 and the first elastic return member 23

Chute 24 against plate 25

Connector 3 Sliding sleeve 4

Button 5 Pin 51

Second elastic return member 52 rivet 6

Limiting rod 7 Limiting head 71

Operating handle 8.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and are not to be construed as limiting the present invention.

When locking the first connecting piece and the second connecting piece, that is, when realizing the locking function, the present invention rotates the first connecting piece to a position coinciding with the axis of the second connecting piece, and the sliding sleeve drives the latch of the button to insert into the first card. slot, at this time, 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 socket, thereby locking the first connecting piece and the second connecting piece. In the locked state of the first connecting piece and the second connecting piece, since there is a first elastic return member between the plug connector and the second connector, the first elastic return member always inserts the plug connector into the first connector. The socket provides elastic force. Therefore, even if the button is accidentally touched to cause the latch to detach from the first slot, under the elastic force of the first elastic return member, the plug connector will not detach from the socket of the first connecting member, and the sliding sleeve will not detach from the first slot. It will not break away from the first connecting piece. To open the hinge locking mechanism, you must press the button and apply sliding force to compress the first elastic return piece. The double self-locking ensures the reliability of the hinge connection, thereby improving the safety of use.

When the first connecting piece and the second connecting piece are folded, that is, when the folding function is realized, the button is pressed so that the latch is lifted up and separated from the first slot of the second connecting piece, and at the same time, the sliding sleeve is moved away from the first connecting piece and the second connecting piece. The hinge of the connecting piece moves until the pin of the button is embedded in the second slot of the second connecting piece. At this time, the sliding sleeve is sleeved on the second connecting piece and releases the sleeve of the first connecting piece, and the plug connector is detached from the plug. hole, a folding action can then be performed to rotate the first connecting piece relative to the second connecting piece to a desired folding position. Therefore, the present invention improves the safety of use and is easy to operate.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a thorough understanding of the invention, and to fully convey the scope of the invention to those skilled in the art.

In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation modes.

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

The first connector 1 is provided with an insertion hole 11 . The second connecting piece 2 is hingedly connected to the first connecting piece 1, and the second connecting piece 2 is provided with a first slot 21 and a second slot 22 in sequence. The plug connector 3 is axially movable and disposed in the second connector 2. A first elastic return member 23 is provided between the connector 3 and the second connector 2. The first elastic return member 23 may be a compression spring. The sliding sleeve 4 can be axially slidably sleeved at the hinge joint between the second connecting piece 2 and the first connecting piece 1 , and the sliding sleeve 4 is fixedly connected to 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 latch 51 that passes through the sliding sleeve 4. When the latch 51 is inserted into the first slot 21 , the sliding sleeve 4 is simultaneously sleeved on the second connector 2 and the first connector 1 , and the connector 3 is inserted into the socket 11 . When the latch 51 is inserted into the second slot 22 , the sliding sleeve 4 is sleeved on the second connector 2 and is released from the first connector 1 , and the connector 3 is separated from the socket 11 .

As shown in Figure 2, when locking the first connecting piece 1 and the second connecting piece 2, the first connecting piece 1 is rotated to a position that coincides with the axis of the second connecting piece 2, and the sliding sleeve 4 drives the latch 51 of the button 5 Insert the first card slot 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 connector 3 is inserted into the socket 11 to enhance the strength and double locking. , thereby locking the first connecting member 1 and the second connecting member 2.

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

In the locked state of the first connector 1 and the second connector 2, since the first elastic return member 23 is provided between the plug connector 3 and the second connector 2, the first elastic return member 23 is always plugged in. The plug 3 is inserted into the socket 11 of the first connecting piece 1 to provide elastic force. Therefore, even if the button 5 is mistakenly touched and its latch 51 is separated from the first slot 21, under the elastic force of the first elastic return piece 23, the plug connector 3 It will not break away from the socket 11 of the first connector 1, and the sliding sleeve 4 will not break away from the first connector 1. To open the hinge locking mechanism, you must press the button 5 and apply sliding force to compress the first elastic return member 23. , double self-locking ensures the reliability of the hinge connection, thereby improving the safety of use.

As shown in Figure 3, when folding the first connecting piece 1 and the second connecting piece 2, press the button 5 to cause its latch 51 to tilt up and disengage from the first slot 21 of the second connecting piece 2, and at the same time, the sliding sleeve 4 moves away. The hinge joint between the first connecting member 1 and the second connecting member 2 moves until the pin 51 of the button 5 is inserted into the second slot 22 of the second connecting member 2. At this time, the sliding sleeve 4 is sleeved on the second connecting member 2. The socket of the first connector 1 is released, and the connector 3 is detached from the socket 11, and then the folding action can be performed to rotate the first connector 1 to the required folding position relative to the second connector 2. Therefore, the present invention improves the safety of use and is easy to operate.

In some examples, a second elastic return member 52 is provided at the other end of the button 5 . The second elastic return member 52 may be a compression spring. One end of the second elastic return member 52 abuts the button 5 and the other end abuts the sliding sleeve 4 . The button 5 realizes self-locking under the action of the second elastic return member 52 to prevent safety problems caused by mistakenly pressing the button 5 . At the same time, the button 5 can be arranged at any position on the sliding sleeve 4 that is not easy to be accidentally touched as needed.

In some examples, the insertion hole 11 of the first connector 1 is a tapered hole, and the insertion end of the plug connector 3 is configured as a tapered plug corresponding to the tapered hole. The tapered pin is tightly matched with the tapered hole of the first connector 1 to achieve locking. As the number of uses increases, the mating surfaces of the tapered pin and the first connector 1 will be worn, and the wear will cause them to become damaged. The mating surface is more appropriate and precise. Under the action of the first elastic return member 23, it is ensured that the tapered pin and the first connector 1 are closely matched and will not separate, thereby preventing the first connector 1 and the second connector 2 from being separated. Rotation along the axis and swing in the radial direction occur, thereby solving the problems of excessive clearance, relative sliding and noise caused by wear. The matching taper of the tapered pin and the tapered hole can be selected according to the use occasion and needs.

Preferably, the tapered plug fits the tapered hole of the first connector 1 without any gap. As the number of uses increases, the mating surfaces on the plug connector 3 and the first connector 1 will wear, making the mating surfaces more appropriate and precise.

In some examples, there is a gap between the tapered pin and the end of the first connector 1, and at the same time, there is a gap between the pin 51 of the button 5 and the first slot 21 of the second connector 2 to compensate for the taper. The mating surfaces of the cone-shaped latch and the first connecting member 1 are worn, ensuring that under the action of the first elastic return member 23, the tapered latch and the first connecting member 1 fit tightly without any gap.

In some examples, the sliding sleeve 4 and the plug-in connector 3 are connected through rivets 6 , and the second connecting piece 2 is provided with a slide groove 24 for the rivet 6 to slide in the axial direction, so that the sliding sleeve 4 can be driven by the rivet 6 when the sliding sleeve 4 is slid. The plug connector 3 performs synchronous axial movement.

In some examples, the second connecting member 2 is provided with a resisting plate 25 , one end of the first elastic restoring member 23 abuts against the resisting plate 25 , and the other end of the first elastic restoring member 23 abuts on the plug connector 3 , in the first Under the action of the elastic return member 23, it is ensured that the plug connector 3 and the first connecting member 1 are closely matched and will not separate. The arrangement of the abutment plate 25 makes it easy to assemble the first elastic return member 23 and prevents the first elastic return member 23 from deforming under long-term use.

In some examples, the present invention also includes a limiting rod 7. One end of the limiting rod 7 is connected to the plug connector 3. The other end of the limiting rod 7 can slide through the abutment plate 25 and is provided with a limiting head 71. The limiting head 71 A limiting gap is reserved between 71 and the abutment plate 25. The limiting rod 7 prevents rotation along the axis and swing in the radial direction between the first connecting piece 1 and the second connecting piece 2, thereby solving the problems of excessive clearance, relative sliding and noise caused by wear; At the same time, the limiting head 71 can prevent the plug connector 3 from excessively deflecting in the direction of the first connector 1 due to wear, thereby affecting the safety of use.

In some examples, the present invention also includes an operating handle 8 , which is sleeved on the sliding sleeve 4 . The size of the operating handle 8 is designed according to the comfort of the hand and the convenience of exerting force. The appearance design is simple and beautiful. Different materials can be selected for different use occasions, making the operation more comfortable.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The directions or positions indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" etc. The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore It should not be construed as a limitation of the present invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly provided and limited, the term "above" or "below" a first feature of a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the invention. In this specification, schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may join and combine the different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present invention. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present invention. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A hinge locking mechanism, including: A first connecting piece, the first connecting piece is provided with a socket; a second connecting piece, the second connecting piece is hingedly connected to the first connecting piece, and the second connecting piece is sequentially provided with a first clamping slot and a second clamping slot; A plug-in connector, which is axially movable and disposed in the second connector, and a first elastic return member is provided between the plug-in connector and the second connector; Sliding sleeve, the sliding sleeve can be axially slidably sleeved at the hinge joint between the second connecting piece and the first connecting piece, and the sliding sleeve is fixedly connected to the plug connector; Button, the button is hinged on the sliding sleeve, and one end of the button is provided with a plug passing through the sliding sleeve; when the plug is inserted into the first slot, the sliding sleeve is sleeved on the sliding sleeve at the same time. On the second connector and the first connector, the plug connector is inserted into the jack; when the plug is inserted into the second slot, the sliding sleeve is sleeved on the second connector And the socket of the first connecting piece is released, and the plug connector is separated from the socket. 2. A hinge locking mechanism according to claim 1, characterized in that the other end of the button is provided with a second elastic return member, one end of the second elastic return member abuts the button, and the other end abuts the button. By the sliding sleeve. 3. A hinge locking mechanism according to claim 2, characterized in that the insertion hole of the first connector is a tapered hole, and the insertion end of the plug-in connector is configured to be a tapered hole corresponding to the tapered hole. shaped latch. 4. A hinge locking mechanism according to claim 3, characterized in that the tapered plug fits the tapered hole of the first connecting member without any gap. 5. A hinge locking mechanism according to claim 4, characterized in that there is a gap between the tapered latch and the end of the first connecting member; the latch of the button and the second There is a gap between the first slots of the connecting piece. 6. A hinge locking mechanism according to claim 5, characterized in that the sliding sleeve and the plug-in connector are connected by rivets, and the second connecting member is axially provided with a hole for the rivet. Sliding chute. 7. A hinge locking mechanism as claimed in claim 6, characterized in that a resisting plate is provided in the second connecting member, and one end of the first elastic return member abuts against the resisting plate, so The other end of the first elastic return member is against the plug connector. 8. A hinge locking mechanism as claimed in claim 7, further comprising a limiting rod, one end of which is connected to the plug connector, and the other end of which can slide through A limiting head is provided through the resisting plate, and a limiting gap is reserved between the limiting head and the resisting plate. 9. A hinge locking mechanism according to claim 1, characterized in that when the sliding sleeve is sleeved on the second connecting piece and the first connecting piece at the same time, the first connecting piece It is arranged coaxially with the second connecting piece. 10. A hinge locking mechanism according to any one of claims 1 to 9, characterized in that it further includes an operating handle, and the operating handle is sleeved on the sliding sleeve.