Hidden hinge

Abstract

The utility model relates to a hinge, in particular to a hidden hinge which is installed on a door, has a hiding effect and can be automatically closed. According to the technical scheme, the hidden hinge is characterized in that a right supporting frame comprises an upper right connecting plate and a lower right connecting plate which are independently arranged, mounting columns are oppositely and symmetrically arranged on the upper right connecting plate and the lower right connecting plate respectively, the two ends of a second right connecting shaft are arranged on the mounting columns respectively, and the two ends of the second right connecting shaft are fixedly connected with the upper right connecting plate and the lower right connecting plate respectively. By the adoption of the scheme, the hidden hinge overcomes the defects in the prior art, and the upper right connecting plate or the lower right connecting plate of the hidden hinge is convenient to install and replace.

Description

Technical Field

[0001] The utility model relates to a hinge, in particular to a novel concealed hinge which is installed on a door and has a concealing effect and can automatically close the door. Background Art

[0002] Hinges are required for the installation of door leaves. Concealed hinges are used for the sake of appearance and safety. The concealed hinges on the market only serve as the hinge function of the door leaf. If you want to achieve the effect of automatic hydraulic buffer closing, you need to install a concealed door closer, which is extremely inconvenient. After the installation of ordinary multi-functional hydraulic hinges, the hinge tube body is exposed and the volume is large, which will affect the overall appearance of the door leaf and is not easy to install and maintain. The above problems bring a lot of inconvenience to users.

[0003] Through searching, we also found a patent that is close to the present application document. The patent number is 201922463281.5, which is a concealed hinge. The patent application date is December 31, 2019, and the publication date is October 2, 2020. The technical points of the patent are: a concealed hinge, characterized in that the left shell body includes a left outer shell and a left bracket, and the left outer shell is provided with a cavity for accommodating the left bracket, and each end of the left outer shell has a left mounting plate extending therefrom, and the left bracket includes a left bottom plate, and each end of the left bottom plate has a left side plate extending upward from the end of the left bottom plate, and each end of the two left side plates has a left flange plate extending therefrom horizontally, and the two left mounting plates are each close to the cavity There is a step surface at the position of the body, and both of the two step surfaces have left threaded holes. The two step surfaces are respectively used to accommodate the two left flange plates on the left bracket, and the two left flange plates respectively have a left through hole, and the two left side plates are mirror-imaged to each other and set the upper left through hole and the lower left through hole from top to bottom; the specific way in which the left shell body is connected to the left shaft portion is: the left shaft portion contains a left shaft portion through hole, and a left fixed shaft is passed through the left shaft portion through hole, and the two ends of the left fixed shaft are embedded in the two upper left through holes; the specific way in which a left functional shaft that can store and release energy is set inside the left shell body is: one end of the left functional shaft is fixedly connected to one of the lower left through holes, and the other end of the left functional shaft is rollingly connected to the other lower left through hole. The right shell comprises a right outer shell and a right bracket, the right outer shell is provided with a cavity for accommodating the right bracket, each end of the right outer shell has a right mounting plate extending therefrom, the right bracket comprises a right bottom plate, each end of the right bottom plate has a right side plate extending upward from the end of the right bottom plate, each end of the two right side plates has a right flange plate extending therefrom horizontally, each of the two right mounting plates has a step surface near the cavity, both of the two step surfaces have right threaded holes, and each of the two step surfaces is used to accommodate the two right flange plates on the right bracket, and the two The right flange plates each have a right through hole, and the two right side plates are mirror-imaged to each other and are provided with an upper right through hole and a lower right through hole from top to bottom; the specific manner in which the right shell body is connected to the right shaft portion is: the right shaft portion contains a right shaft portion through hole, a right fixed shaft passes through the right shaft portion through hole, and the two ends of the right fixed shaft are embedded in the two upper right through holes; the specific manner in which a right functional shaft capable of storing and releasing energy is provided inside the right shell body is: one end of the right functional shaft is fixedly connected to one of the lower right through holes, and the other end of the right functional shaft is rollingly connected to the other lower right through hole.From the above description we can see that the left bracket and the right bracket of the patent are a complete whole. The problem with the above structure is that when the bracket is connected to the outer shell, the strength of the fixing screws is very high, and the overall size of the bracket is also very high. Once the size is small, it is difficult for a fixing screw to support a large force and it is easy to fail. In addition, the bracket is also subjected to great force, prone to deformation, and inconvenient to install. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a new type of concealed hinge with a split right bracket, which is easy to install and can well decompose gravity.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a concealed hinge, including a left mounting unit and a right mounting unit, the left mounting unit including a left shell, a left support frame, a left first connecting shaft, a left second connecting shaft and a left hinge plate, wherein the left support frame includes a left upper connecting plate, a left lower connecting plate and a bottom plate, the left upper connecting plate, the left lower connecting plate and the bottom plate are integrally or fixedly arranged, the upper left connecting plate and the lower left connecting plate are respectively extended with flange plates, the flange plates are provided with mounting holes, and the left support frame is fixedly installed with the left shell through the mounting holes, and the right mounting unit includes a right shell, a right support frame, a right first connecting shaft, a right second connecting shaft and a right hinge plate, characterized in that: the right support frame includes an independently arranged right upper connecting plate and a right lower connecting plate The connecting plate, the independent setting here means that there is no fixation or integral setting between the two, the installation area is between the upper right connecting plate and the lower right connecting plate, the right first connecting shaft and the right second connecting shaft are placed in the installation area, the upper right connecting plate and the lower right connecting plate are respectively provided with installation columns facing and symmetrically, the two ends of the right second connecting shaft are respectively arranged on the installation columns, the first end of the left hinge plate is connected to the left first connecting shaft, the second end of the left hinge plate is connected to the right second connecting shaft, and the two sides of the second end of the left hinge plate are directly or indirectly in conflict with the ends of the two installation columns, the first end of the right hinge plate is connected to the right first connecting shaft, the second end of the right hinge plate is connected to the left second connecting shaft, and the middle parts of the left hinge plate and the right hinge plate are connected by a pin shaft.

[0006] By adopting the above solution, the right support frame is decomposed into two independent upper right connecting plates and lower right connecting plates, which is very convenient when installing the second end of the left hinge plate. In addition, since the gravity of the door is very large, one of the upper right connecting plate and the lower right connecting plate that bears the gravity is prone to wear after long-term use of the door, causing abnormal noise when opening and closing the door. At this time, replacement will be relatively simple, and only one needs to be replaced.

[0007] A further configuration of the utility model is: a card slot or a card block is provided on the upper right connecting plate, a card block or a card slot cooperating with the card slot or the card block is provided at a corresponding position on the right outer shell, the upper right connecting plate is connected to the right outer shell by bolts after the card slot and the card block cooperate, a card slot or a card block is also provided on the lower right connecting plate, a card block or a card slot cooperating with the card slot or the card block is provided at a corresponding position on the right outer shell, and the lower right connecting plate is connected to the right outer shell by bolts after the card slot and the card block cooperate.

[0008] By adopting the above solution, the upper right connecting plate cooperates with the right outer shell by means of a block and a slot, and the lower right connecting plate cooperates with the right outer shell by means of a block and a slot. In this way, the force of the right support frame can be well decomposed and transmitted to the right outer shell, thereby greatly increasing the bearing capacity of the product and extending the service life of the product.

[0009] The utility model is further configured as follows: a left functional axis is arranged between the upper left connecting plate and the lower left connecting plate of the left support frame, the left first connecting axis is controlled by the functional axis, and the connecting portion between the left first connecting axis and the functional axis is located in the middle of the functional axis, the left hinge plate as a whole is a "T"-shaped structure, the length of one end connected to the functional axis is equivalent to the distance between the upper left connecting plate and the lower left connecting plate, and the end is placed between the upper left connecting plate and the lower left connecting plate and covers the functional axis, the other end of the left hinge plate is a raised portion, the overall length of the right hinge plate is equivalent to the distance between the upper right connecting plate and the lower right connecting plate, a square notch is arranged in the middle of the right hinge plate, the distance between the mounting columns on the upper right connecting plate and the lower right connecting plate is equivalent to the width of the square notch, the size of the square notch is equivalent to the raised portion of the left hinge plate, and the top of the raised portion of the left hinge plate passes through the square notch and is connected to the right second connecting axis.

[0010] By adopting the above scheme, the bearing capacity and firmness of the left hinge plate and the right hinge plate are increased, especially the right hinge plate forms a frame structure and is not easy to deform. In addition, in the above scheme, the end of the left hinge connected to the left first connecting shaft can be made as long as possible, so that the entire left functional shaft can be covered to achieve shielding and protection of the left functional shaft, thereby extending the service life of the functional shaft. In addition, the overall appearance is beautiful, and the distance between the mounting columns on the upper right connecting plate and the lower right connecting plate is equivalent to the width of the square notch, so that the protrusion passes through the square notch and is then connected to the right second connecting shaft, so that the end of the protrusion is just in contact with the mounting column.

[0011] The utility model is further configured as follows: a right functional shaft is arranged between the right upper connecting plate and the right lower connecting plate of the right support frame, the right first connecting shaft is controlled by the right functional shaft, and the connecting portion between the right first connecting shaft and the right functional shaft is located in the middle of the right functional shaft, the right hinge plate is a frame-shaped structure as a whole, the length of one end of the right hinge plate connected to the right functional shaft is equivalent to the distance between the right upper connecting plate and the right lower connecting plate, and the end is placed between the right upper connecting plate and the right lower connecting plate and covers the right functional shaft.

[0012] By adopting the above solution, the end of the right hinge connected to the right first connecting axis can be made as long as possible, so that the entire right functional axis can be covered to achieve shielding and protection of the right functional axis, extend the service life of the functional axis, and improve the overall appearance.

[0013] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0015] Figure 2 It is the internal structure of the left support frame of the embodiment of the utility model;

[0016] Figure 3 This is an internal structural diagram of the right support frame of an embodiment of the utility model;

[0017] Figure 4 This is a structural diagram of the right housing of an embodiment of the utility model;

[0018] Figure 5 This is a structural diagram of the right support frame of the embodiment of the utility model;

[0019] Figure 6 It is a three-dimensional diagram of the left hinge plate of the embodiment of the utility model;

[0020] Figure 7 It is a three-dimensional diagram of the left hinge plate of the embodiment of the utility model. DETAILED DESCRIPTION

[0021] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that the descriptions of "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0023] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] like Figure 1-7 As shown, a concealed hinge includes a left installation unit 1 and a right installation unit 2, the left installation unit 1 includes a left shell 11, a left support frame 12, a left first connecting shaft 13, a left second connecting shaft 14 and a left hinge plate 15, wherein the left support frame 12 includes a left upper connecting plate 121, a left lower connecting plate 122 and a bottom plate 123, the left upper connecting plate 121, the left lower connecting plate 122 and the bottom plate 123 are integrally or fixedly arranged, the upper left connecting plate 121 and the lower left connecting plate 122 are respectively extended with flange plates, and the flange plates are provided with mounting holes, and the left support frame 12 is connected to the left shell 1 through the mounting holes. 1 is fixedly installed. These technical features are also described in the comparative documents in the background technology, and will not be described in detail in this embodiment. The right installation unit 2 includes a right shell 21, a right support frame 22, a right first connecting shaft 23, a right second connecting shaft 24 and a right hinge plate 25. In this embodiment, the right support frame 22 includes an independently arranged upper right connecting plate 221 and a lower right connecting plate 222. A card slot 2211 or a card block is arranged on the upper right connecting plate 221, and a card block or a card slot 211 cooperating with the card slot 2211 or the card block is arranged at a corresponding position on the right shell 21. The upper right connecting plate 221 is connected by a card The slot and the block are matched and connected to the right housing 21 by bolts. The right lower connecting plate 222 is also provided with a slot or a block. The corresponding position on the right housing 21 is provided with a block or a slot matched with the slot or the block. The right lower connecting plate 222 is connected to the right housing 21 by bolts after matching with the slot and the block. The installation area is between the upper right connecting plate 221 and the lower right connecting plate 222. The right first connecting shaft 23 and the right second connecting shaft 24 are placed in the installation area. The left hinge plate 15 and the right hinge plate 25 are respectively connected by the left first connecting shaft 13, the left second connecting shaft 14, the right first connecting shaft 23 and the right second connecting shaft The two connecting shafts 24 constitute an articulated linkage arrangement, wherein the articulation principle of the left hinge plate 15 and the right hinge plate 25 is the same as that in the background technology, and we will not describe it in detail. In this embodiment, the right support frame 22 is decomposed into two independent upper right connecting plates 221 and lower right connecting plates 222, wherein the upper right connecting plate 221 cooperates with the right outer shell 21 by means of a block and a slot, and the lower right connecting plate 222 cooperates with the right outer shell 21 by means of a block and a slot, so that the force of the right support frame 22 can be well decomposed and transmitted to the right outer shell 21, thereby greatly increasing the bearing capacity of the product and extending the service life of the product.

[0025] In the embodiment of the utility model, the upper right connecting plate 221 and the lower right connecting plate 222 are respectively provided with mounting posts 223 facing and symmetrically, the two ends of the right second connecting shaft 24 are respectively provided on the mounting posts 223, the first end of the left hinge plate 15 is connected to the left first connecting shaft 13, the second end of the left hinge plate 15 is connected to the right second connecting shaft 24, and the two sides of the second end of the left hinge plate 15 directly or indirectly contact and cooperate with the ends of the two mounting posts 223, the first end of the right hinge plate 25 is connected to the right first connecting shaft 23, the second end of the right hinge plate 25 is connected to the left second connecting shaft 14, and the middle parts of the left hinge plate 15 and the right hinge plate 25 are connected by a pin. By adopting the above scheme, when the product is used, the contact force between the two sides of the second end of the left hinge plate 15 and the ends of the two mounting posts 223 is transmitted to the right housing 21 through the right support frame 22, which is also to increase the load-bearing capacity and improve the convenience of installation.

[0026] In the embodiment of the utility model, a left functional shaft 16 is arranged between the left upper connecting plate 121 and the left lower connecting plate 122 of the left supporting frame 12. The function of the left functional shaft 16 is consistent with the patent in the background technology. Its purpose is to drive the left first connecting shaft 13 to rotate so as to realize the function of automatic door closing. The left first connecting shaft 13 is controlled by the left functional shaft 16. The left hinge plate 15 is a "T"-shaped structure as a whole. The length of one end of the left hinge plate 15 connected to the left functional shaft 16 is equivalent to the distance between the upper left connecting plate 121 and the lower left connecting plate 122, and the end is placed between the upper left connecting plate 121 and the lower left connecting plate 122. The connecting plates 122 are between and cover the left functional axis 16. The other end of the left hinge plate 15 is a protrusion 151. The overall length of the right hinge plate 25 is equivalent to the distance between the upper right connecting plate 221 and the lower right connecting plate 222. A square notch 251 is provided in the middle of the right hinge plate 25. The distance between the two mounting columns 223 on the upper right connecting plate 221 and the lower right connecting plate 222 is equivalent to the width of the square notch 251. The size of the square notch 251 is equivalent to the protrusion 151 of the left hinge plate 15. The top of the protrusion 151 of the left hinge plate 15 passes through the square notch 251 and is connected to the right second connecting axis 24.

[0027] A right functional shaft 26 is arranged between the right upper connecting plate 221 and the right lower connecting plate 222 of the right supporting frame 22, the right first connecting shaft 23 is controlled by the right functional shaft 26, and the connecting portion between the right first connecting shaft 23 and the right functional shaft 26 is located in the middle of the right functional shaft 26, the right hinge plate 25 is a frame-shaped structure as a whole, the length of one end of the right hinge plate 25 connected to the right functional shaft 26 is equivalent to the distance between the right upper connecting plate 221 and the right lower connecting plate 222, and the end is placed between the right upper connecting plate 221 and the right lower connecting plate 222 and covers the right functional shaft 26; adopting the above scheme, the bearing capacity and firmness of the left hinge plate 15 and the right hinge plate 25 are increased, especially the right hinge plate 25 is a frame structure, which is not easy to deform, the function of the right functional shaft 26 is the same as that of the left functional shaft 16, so that the product has the function of automatic door closing, in addition, the left hinge plate 15 and the right hinge plate 25 are both covered on the left and right functional shafts, thus playing the role of protecting the left and right functional shafts.

Claims

1. A concealed hinge, comprising a left mounting unit and a right mounting unit, wherein the left mounting unit comprises a left housing, a left support frame, a left first connecting shaft, a left second connecting shaft and a left hinge plate, wherein the left support frame comprises a left upper connecting plate, a left lower connecting plate and a bottom plate, the left upper connecting plate, the left lower connecting plate and the bottom plate are integrally or fixedly arranged, the left upper connecting plate and the left lower connecting plate are respectively extended with flange plates, the flange plates are provided with mounting holes, the left supporting frame is fixedly mounted with the left housing through the mounting holes, the right mounting unit comprises a right housing, a right support frame, a right first connecting shaft, a right second connecting shaft and a right hinge plate, characterized in that: The right supporting frame includes an independently arranged right upper connecting plate and a right lower connecting plate, and an installation area is formed between the right upper connecting plate and the right lower connecting plate, and the right first connecting shaft and the right second connecting shaft are placed in the installation area, and the right upper connecting plate and the right lower connecting plate are respectively provided with mounting columns facing and symmetrically, and the two ends of the right second connecting shaft are respectively arranged on the mounting columns, and the first end of the left hinge plate is connected to the left first connecting shaft, and the second end of the left hinge plate is connected to the right second connecting shaft, and the two sides of the second end of the left hinge plate are directly or indirectly in conflict with the ends of the two mounting columns, and the first end of the right hinge plate is connected to the right first connecting shaft, and the second end of the right hinge plate is connected to the left second connecting shaft, and the middle parts of the left hinge plate and the right hinge plate are connected by a pin shaft.

2. A concealed hinge according to claim 1, characterized in that: A slot or a block is provided on the upper right connecting plate, and a block or a slot cooperating with the slot or the block is provided at a corresponding position on the right outer shell. The upper right connecting plate is connected to the right outer shell by bolts after the slot and the block cooperate. A slot or a block is also provided on the lower right connecting plate, and a block or a slot cooperating with the slot or the block is provided at a corresponding position on the right outer shell. The lower right connecting plate is connected to the right outer shell by bolts after the slot and the block cooperate.

3. A concealed hinge according to claim 2, characterized in that: A left functional axis is arranged between the upper left connecting plate and the lower left connecting plate of the left support frame, the left first connecting axis is controlled by the left functional axis, and the connecting part between the left first connecting axis and the left functional axis is located in the middle of the left functional axis, the left hinge plate as a whole is a "T" shaped structure, the length of one end connected to the left functional axis is equivalent to the distance between the upper left connecting plate and the lower left connecting plate, and the end is placed between the upper left connecting plate and the lower left connecting plate and covers the left functional axis, the other end of the left hinge plate is a raised portion, the overall length of the right hinge plate is equivalent to the distance between the upper right connecting plate and the lower right connecting plate, a square notch is arranged in the middle of the right hinge plate, the distance between the mounting columns on the upper right connecting plate and the lower right connecting plate is equivalent to the width of the square notch, the size of the square notch is equivalent to the raised portion of the left hinge plate, and the top of the raised portion of the left hinge plate passes through the square notch and is connected to the right second connecting axis.

4. A concealed hinge according to claim 2, characterized in that: A right functional shaft is arranged between the right upper connecting plate and the right lower connecting plate of the right support frame, the right first connecting shaft is controlled by the right functional shaft, and the connecting part between the right first connecting shaft and the right functional shaft is located in the middle of the right functional shaft, the right hinge plate is a frame-shaped structure as a whole, and the length of one end of the right hinge plate connected to the right functional shaft is equivalent to the distance between the right upper connecting plate and the right lower connecting plate, and the end is placed between the right upper connecting plate and the right lower connecting plate and covers the right functional shaft.

5. The concealed hinge according to claim 3, characterized in that: A right functional shaft is arranged between the right upper connecting plate and the right lower connecting plate of the right support frame, the right first connecting shaft is controlled by the right functional shaft, and the connecting part between the right first connecting shaft and the right functional shaft is located in the middle of the right functional shaft, the right hinge plate is a frame-shaped structure as a whole, and the length of one end of the right hinge plate connected to the right functional shaft is equivalent to the distance between the right upper connecting plate and the right lower connecting plate, and the end is placed between the right upper connecting plate and the right lower connecting plate and covers the right functional shaft.

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