External hinge

Abstract

The utility model relates to an external hinge, which comprises a movable hinge plate, a static hinge plate and a hinge shaft, a first shaft seat part of the movable hinge plate and a second shaft seat part of the static hinge plate are provided with correspondingly matched shaft insertion holes, and the hinge shaft is inserted into the shaft insertion hole of the first shaft seat part and the shaft insertion hole of the second shaft seat part to form the relative rotation connection of the movable hinge plate and the static hinge plate. The movable hinge plate and the static hinge plate can relatively rotate to a closed state, the first shaft seat part comprises two first outer decoration wall plates which are arranged in an L shape, a first shaft positioning part with a shaft inserting hole is arranged on the inner side of a corner between the two first outer decoration wall plates, and the second shaft seat part comprises two second outer decoration wall plates which are arranged in an L shape, and a second shaft positioning part with a shaft inserting hole is arranged on the inner side of a corner between the two second outer decoration wall plates. A second shaft positioning part with a shaft inserting hole is arranged on the inner side of a corner between the two second exterior wall plates, and when the movable hinge plate and the static hinge plate are in a closed state, the two first exterior wall plates and the two second exterior wall plates are aligned one by one. The hinge shaft mounting structure is designed in a built-in manner, can be integrated with an equipment body during mounting and use, and has the advantage of simple appearance.

Description

Technical Field

[0001] The utility model relates to a hardware accessory, more specifically a hinge. Background Art

[0002] The hinge usually includes a movable hinge plate installed on the door leaf and a static hinge plate installed on the door frame. A protruding hinge seat is formed on one side of the installation plate of the movable hinge plate and the static hinge plate. The hinge shaft is inserted into the shaft hole of the hinge seat to achieve the connection between the movable hinge plate and the static hinge plate. In order to reduce the impact of the hinge on the appearance of the equipment, some existing hinges adopt an internal structure design, but for some occasions, it is necessary to use an external structure hinge, that is, the hinge is exposed outside the equipment cabinet (such as an electrical cabinet) after installation. However, when the door leaf is closed, the external hinge of the existing structure protrudes from the equipment body (such as the electrical cabinet), specifically the hinge seat part, which has the defect of being unsightly during installation and use. Summary of the invention

[0003] Purpose of the utility model invention: To overcome the defects of the prior art, the utility model provides an external hinge with a hinge shaft installation structure hidden inside, so that when the door hinge is installed and used, it can be integrated with the equipment body and has the advantage of a simple appearance.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An external hinge comprises a movable hinge plate, a static hinge plate and a hinge shaft, wherein the movable hinge plate comprises a first mounting plate and a first shaft seat portion, the static hinge plate comprises a second mounting plate and a second shaft seat portion, the first shaft seat portion and the second shaft seat portion are provided with corresponding shaft insertion holes, the hinge shaft is inserted into the shaft insertion hole of the first shaft seat portion and the shaft insertion hole of the second shaft seat portion to form a relatively rotatable connection between the movable hinge plate and the static hinge plate, and the movable hinge plate and the static hinge plate can be relatively rotated to a closed state, characterized in that: the first shaft seat portion comprises two first exterior decorative wall panels arranged in an L shape, so that the two first exterior decorative wall panels are separated The first and second exterior decorative wall panels are respectively a first exterior decorative wall panel A and a first exterior decorative wall panel B connected to the first mounting plate, the inner side of the corner between the two first exterior decorative wall panels has a first shaft positioning portion with a shaft insertion hole, the second shaft seat portion includes two second exterior decorative wall panels arranged in an L shape, the two second exterior decorative wall panels are respectively a second exterior decorative wall panel B and a second exterior decorative wall panel A connected to the second mounting plate, the inner side of the corner between the two second exterior decorative wall panels is provided with a second shaft positioning portion with a shaft insertion hole, when the movable hinge plate and the static hinge plate are in a closed state, the two first exterior decorative wall panels and the two second exterior decorative wall panels are aligned one by one.

[0006] Preferably, a recess is provided on the second shaft seat portion, the first shaft seat portion is inserted into the recess, and the second exterior wall panel A forms a vertical side wall extending along the axial direction of the hinge shaft through the recess, and the vertical side wall is a concave arc surface with the center of the hinge shaft as the center of the circle, and the vertical outer side wall of the first exterior wall panel A is a convex arc surface with the center of the hinge shaft as the center of the circle, and the convex arc surface and the concave arc surface are adapted to each other, so that when the movable hinge plate and the static hinge plate are in a closed state, an anti-peep structural seam is formed between the convex arc surface and the concave arc surface.

[0007] Preferably, both ends of the second shaft seat portion are provided with recesses, and the movable hinge plate is provided with two first shaft seat portions which are inserted into the recesses in a one-to-one correspondence, and an avoidance recess is formed between the two first shaft seat portions, and the second shaft seat portion is inserted into the avoidance recess.

[0008] The two ends of the hinge parts are provided with an L-shaped groove, and the two ends of the hinge parts are respectively provided with an L-shaped groove that matches the two hinge shafts and radially passes through the shaft insertion hole. The L-shaped groove includes a main groove body extending axially and a transverse locking groove located at the inner end portion of the main groove body. The anti-slip transverse pin and the wall stop of the main groove body are used to limit the hinge shaft to the first shaft seat part axially, and the anti-slip transverse pin is stuck in the transverse locking groove to lock the hinge shaft axially in the disassembly position.

[0009] Preferably, a second mounting plate is vertically arranged on the edge of the second exterior wall panel A and is flipped and extended toward the protruding direction of the second exterior wall panel B, and a number of triangular reinforcing ribs are provided on the inner sides of the corners of the second mounting plate and the second exterior wall panel A; the edge of the first exterior wall panel B extends to form a first mounting plate.

[0010] Preferably, the top surface of the first mounting plate is lower than the outer surface of the first exterior decorative wall plate B to form a step-shaped groove.

[0011] By adopting the above technical scheme, two mutually perpendicular first exterior wall panels are formed on the moving hinge plate, and the first shaft seat portion with the shaft insertion hole is arranged on the inner side of the corner of the two first exterior wall panels to achieve shielding of the first shaft seat portion; two mutually perpendicular second exterior wall panels are formed on the static hinge plate, and the second shaft seat portion with the shaft insertion hole is arranged on the inner side of the corner of the two second exterior wall panels to achieve shielding of the second shaft seat portion; therefore, when the moving hinge plate and the static hinge plate are in a closed state, the two first exterior wall panels and the two second exterior wall panels correspond one to one, so that when the hinge is in a closed state, two mutually perpendicular exposed surfaces are formed on the hinge, and the two exposed surfaces hide the part where the hinge shaft is inserted, so that the first exterior wall panel and the second exterior wall panel can be used to be flush with the equipment body to integrate into one; thereby achieving a simple and beautiful appearance of the equipment body after the hinge is installed.

[0012] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model when the exterior hinge is in a closed state;

[0014] Figure 2 This is an exploded view of the exterior hinge of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the static hinge plate assembly of the utility model when the hinge shaft is in the pop-up state;

[0016] Figure 4 It is a structural schematic diagram of the static hinge plate assembly of the utility model when the hinge shaft is retracted;

[0017] Figure 5 This is a structural schematic diagram of the movable hinge plate of the utility model;

[0018] Figure 6 This is a structural schematic diagram of the static hinge plate of the utility model;

[0019] Figure 7 The utility model is a structural diagram of a cabinet equipped with an external hinge. DETAILED DESCRIPTION

[0020] See attached Figures 1 to 6The utility model discloses an external hinge, comprising a movable hinge plate 1, a static hinge plate 2 and a hinge shaft 3, wherein the movable hinge plate 1 comprises a first mounting plate 11 and a first shaft seat portion 12, the static hinge plate 2 comprises a second mounting plate 21 and a second shaft seat portion 22, the first shaft seat portion 12 and the second shaft seat portion 22 are provided with corresponding shaft insertion holes, the hinge shaft 3 is inserted into the shaft insertion hole of the first shaft seat portion 12 and the shaft insertion hole of the second shaft seat portion 22 to form a relatively rotatable connection between the movable hinge plate 1 and the static hinge plate 2, the movable hinge plate 1 and the static hinge plate 2 can be relatively rotated to a closed state, in which the door leaf of the equipment body is in a closed state (see attached Figure 7 ), the first shaft seat portion 12 includes two first exterior wall panels 121 arranged in an L shape, and the inner side of the corner between the two first exterior wall panels 121 has a first shaft positioning portion 122 with a shaft insertion hole, and the second shaft seat portion 22 includes two second exterior wall panels 221 arranged in an L shape, and the inner side of the corner between the two second exterior wall panels 221 is provided with a second shaft positioning portion 222 with a shaft insertion hole, when the movable hinge plate 1 and the static hinge plate 2 are in a closed state, the two first exterior wall panels 121 and the two second exterior wall panels 221 are aligned one by one. For the convenience of describing the invention, the two first exterior wall panels 121 are respectively the first exterior wall panel A121-A and the first exterior wall panel B121-B connected to the first mounting plate 11, and the two second exterior wall panels 221 are respectively the second exterior wall panel B221-B and the second exterior wall panel A221-A connected to the second mounting plate 21. Then, in the hinge closed state, the first exterior wall panel A121-A and the second exterior wall panel A221-A are aligned, and the first exterior wall panel B121-B and the second exterior wall panel B221-B are aligned. Figure 7 As shown, the device body equipped with external hinges, when the door is closed, that is, the external hinges are in a closed state, the first external wall panel 121 and the second external wall panel 221 present two mutually perpendicular exposed surfaces, which are L-shaped and can be integrated with the device body. Two mutually perpendicular first exterior wall panels are formed on the moving hinge plate, and the first shaft seat portion with the shaft insertion hole is arranged on the inner side of the corner of the two first exterior wall panels to shield the first shaft seat portion; two mutually perpendicular second exterior wall panels are formed on the stationary hinge plate, and the second shaft seat portion with the shaft insertion hole is arranged on the inner side of the corner of the two second exterior wall panels to shield the second shaft seat portion; therefore, when the moving hinge plate and the stationary hinge plate are in a closed state, the two first exterior wall panels and the two second exterior wall panels correspond one to one, so that when the hinge is in a closed state, two L-shaped exposed surfaces are formed on the hinge, and the two exposed surfaces hide the part where the hinge shaft is inserted, so that the first exterior wall panel and the second exterior wall panel can be used to be flush with the equipment body to integrate into one; thereby achieving a simple and beautiful appearance of the equipment body after the hinge is installed.

[0021] A recess 220 is provided on the second shaft seat portion 22, and the first shaft seat portion 12 is inserted into the recess 220. The second exterior wall panel A221-A forms a vertical side wall 2200 extending axially along the hinge shaft 3 through the recess 220. The vertical side wall 2200 is a concave arc surface with the center of the hinge shaft 3 as the center of the circle. The vertical outer side wall 1211 of the first exterior wall panel A121-A is a convex arc surface with the center of the hinge shaft as the center of the circle. The convex arc surface and the concave arc surface are adapted to each other, so that when the movable hinge plate 1 and the static hinge plate 2 are in a closed state, an anti-peeping structural seam c is formed between the convex arc surface and the concave arc surface. The first axial seat portion of the movable hinge plate 1 is placed in the recessed portion of the second axial seat portion of the static hinge plate to achieve a compact arrangement. Moreover, the second exterior decorative wall panel A forms a vertical side wall extending along the axial direction of the hinge shaft through the recessed portion, which cooperates with the vertical outer side wall of the first exterior decorative wall panel A, and cooperates with the convex arc surface and the concave arc surface to achieve a more compact fit. When the movable hinge plate and the static hinge plate are in a closed state, an anti-peep structural seam is formed between the convex arc surface and the concave arc surface, which ensures that the internal structure of the cabinet cannot be peeped from the outside and increases the overall aesthetics.

[0022] A recess 220 is provided at both ends of the second shaft seat 22, and two first shaft seats 12 are provided on the movable hinge plate 1, which are inserted into the recess 220 in a one-to-one correspondence. An avoidance recess 10 is formed between the two first shaft seats 12, and the second shaft seat 22 is inserted into the avoidance recess 10. A hinge shaft 3 is movably inserted at both ends of the second shaft seat 22, and a locking reset spring 4 is abutted at one end of the hinge shaft 3. The locking reset spring 4 is arranged between the two hinge shafts 3. The locking reset spring 4 is a helical compression spring. The other end of the hinge shaft 3 is a locking end 31 that can be inserted into the shaft insertion hole of the first shaft seat 12. A tool operating structure is provided on the top of the locking end 31, such as a straight groove, or a plum blossom groove, etc., see Figure 3 and Figure 4 The hinge shaft 3 has a connection position and a disassembly position along the axial direction, such as Figure 3 As shown, when the hinge shaft 3 is in the connection position, the locking end 31 pops out of the shaft insertion hole of the second shaft seat portion 22 and is inserted into the shaft insertion hole on the first shaft seat portion 12, as shown in FIG. Figure 4As shown, when the hinge shaft 3 is in the disassembly position, the locking end 31 is retracted into the shaft insertion hole of the second shaft seat portion 22 and exits the shaft insertion hole on the first shaft seat portion 12. The two hinge shafts 3 are provided with an anti-dropping transverse pin 32 radially protruding on the hinge shaft 3. At both ends of the second shaft positioning portion 222, there are respectively provided with an L-shaped slot 2221 that corresponds to the two hinge shafts 3 one by one and radially penetrates to the shaft insertion hole. The anti-dropping transverse pins 32 on the two hinge shafts 3 pass through the corresponding L-shaped slots 2221 respectively. The L-shaped slot 2221 includes a main slot body extending axially and a transverse locking slot located at the inner end of the main slot body. When the hinge shaft 3 switches between the connection position and the disassembly position, the anti-dropping transverse pin 32 moves in the main slot body. When the hinge shaft 3 is in the disassembly position, the anti-dropping transverse pin 32 corresponds to the transverse locking slot position. The hinge shaft 3 is rotated and the anti-dropping transverse pin 32 is stuck in the transverse locking slot (as shown in FIG. Figure 4 As shown in the figure, the hinge shaft 3 is locked in the disassembly position, and the anti-dropping cross pin 32 and the wall stop of the main groove body are used to constrain the hinge shaft 3 axially on the first shaft seat portion 12. The movable hinge plate and the static hinge plate of the hinge can be quickly and conveniently separated and assembled, which is convenient for the terminal customer to install and disassemble during maintenance without removing the hinge from the equipment body.

[0023] In order to make the installation part hidden after installation, the edge of the second exterior panel A221-A is vertically arranged with a second installation plate 21 that is turned and extended toward the convex direction of the second exterior panel B221-B, and a number of triangular reinforcing ribs 23 are arranged inside the corner of the second installation plate 21 and the second exterior panel A221-A; the edge of the first exterior panel B121-B extends to form the first installation plate 11. Figure 7 As shown, the second mounting plate of the static hinge is turned inward and extended to be hidden inside. After the door panel is closed, the second mounting plate can be conveniently and reliably hidden.

[0024] Furthermore, the top surface of the first mounting plate 11 is lower than the outer surface of the first exterior panel B121-B to form a stepped groove 110. Figure 7 As shown, this can achieve that the surface of the door leaf after installation is flush with the outer surface of the first exterior decorative wall panel B, making the overall appearance neater and more beautiful.

Claims

1. An external hinge, comprising a movable hinge plate, a stationary hinge plate and a hinge shaft, wherein the movable hinge plate comprises a first mounting plate and a first shaft seat portion, the stationary hinge plate comprises a second mounting plate and a second shaft seat portion, the first shaft seat portion and the second shaft seat portion are provided with corresponding shaft insertion holes, the hinge shaft is inserted into the shaft insertion hole of the first shaft seat portion and the shaft insertion hole of the second shaft seat portion to form a relatively rotatable connection between the movable hinge plate and the stationary hinge plate, and the movable hinge plate and the stationary hinge plate can be relatively rotated to a closed state, characterized in that: The first shaft seat portion includes two first exterior wall panels arranged in an L shape, the two first exterior wall panels are respectively the first exterior wall panels A, and the first exterior wall panel B connected to the first mounting plate, and the inner side of the corner between the two first exterior wall panels has a first shaft positioning portion with a shaft insertion hole, and the second shaft seat portion includes two second exterior wall panels arranged in an L shape, the two second exterior wall panels are respectively the second exterior wall panels B, and the second exterior wall panel A connected to the second mounting plate, and the inner side of the corner between the two second exterior wall panels is provided with a second shaft positioning portion with a shaft insertion hole, and when the movable hinge plate and the static hinge plate are in a closed state, the two first exterior wall panels and the two second exterior wall panels are aligned one by one.

2. The exterior hinge according to claim 1, characterized in that: A recess is provided on the second shaft seat portion, the first shaft seat portion is inserted into the recess, and the second exterior wall panel A forms a vertical side wall extending along the axial direction of the hinge shaft through the recess, and the vertical side wall is a concave arc surface with the center of the hinge shaft as the center of the circle, and the vertical outer side wall of the first exterior wall panel A is a convex arc surface with the center of the hinge shaft as the center of the circle, and the convex arc surface and the concave arc surface are adapted to each other, so that when the movable hinge plate and the static hinge plate are in a closed state, an anti-peep structural seam is formed between the convex arc surface and the concave arc surface.

3. The exterior hinge according to claim 2, characterized in that: Both ends of the second shaft seat are provided with recesses, and the movable hinge plate is provided with two first shaft seats which are inserted into the recesses in a one-to-one correspondence, and an escape recess is formed between the two first shaft seats, and the second shaft seat is inserted into the escape recess.

4. The exterior hinge according to claim 3, characterized in that: The two ends of the second shaft positioning part are respectively provided with an L-shaped groove which corresponds to the two hinge shafts and radially penetrates the shaft insertion hole, and the anti-slip cross pins on the two hinge shafts respectively pass through the corresponding L-shaped grooves, and the L-shaped grooves include a main groove body extending along the axial direction, and a transverse locking groove located at the inner end portion of the main groove body, and the anti-slip cross pin and the wall stop of the main groove body are used to limit the hinge shaft axially on the first shaft seat part, and the anti-slip cross pin is stuck in the transverse locking groove to form a hinge shaft axial locking position.

5. The exterior hinge according to claim 1, characterized in that: A second mounting plate is vertically arranged on the edge of the second exterior wall panel A and is flipped and extended in the protruding direction of the second exterior wall panel B. A number of triangular reinforcing ribs are provided on the inner side of the corners of the second mounting plate and the second exterior wall panel A; the edge of the first exterior wall panel B extends to form a first mounting plate.

6. The exterior hinge according to claim 5, characterized in that: The top surface of the first mounting plate is lower than the outer surface of the first exterior decorative wall plate B to form a step-shaped groove.

Images