Control box with detachable hinge and opening and closing method

Abstract

The invention relates to a control box with a detachable hinge and an opening and closing method, the control box comprises a box body and a box cover, two box body side walls corresponding to the opening and closing direction of the box cover are fixedly provided with a plurality of jacks, and the box cover is fixedly provided with a plurality of connecting columns corresponding to the jacks; a plurality of plug connectors are further included, the plug connectors are arranged corresponding to the jacks in the side wall of the box body, one end of each single plug connector is provided with a connecting hole, the connecting holes are rotationally connected with the corresponding connecting columns, and the other end of each single plug connector is connected with the corresponding jack in an inserted mode; wherein the connecting column rotates in the connecting hole, so that the box cover swings in the opening and closing direction, the use requirements of a user in different opening and closing directions are met, and meanwhile, after the user installs the control box and uses the control box, the cover opening direction can be conveniently changed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control box, in particular to a control box with detachable hinge and opening and closing method. BACKGROUND

[0002] Some electrical components matched with small devices such as door machines need to be installed on the control box to play the role of waterproof and dustproof, prolong the service life of electrical components and ensure safety. The control box has a box body and a box cover. The box body is usually fixedly installed on the wall, the box cover is hinged to the box body through a fixed hinge, and the control board, driving board and other devices are installed in the box body. The line is led out from the side wall of the box body.

[0003] At present, most control boxes are left opening type. The through hole on the box body for threading is towards the ground after the control box is installed on the wall. However, for some space limited conditions, such as the right side of the installation position of the control box is a wall, the operation space of the left opening type control box is limited by the box cover after the box cover is opened, which brings inconvenience to the operator.

[0004] Although the hinge structure of some control boxes can be detached, the hinge position of the box body and the box cover is fixed. In order to avoid the operation space when the box cover is detached, the operator needs to use special tools to detach, and such operation may also damage the hinge structure. SUMMARY

[0005] In view of the above-mentioned shortcomings in the prior art, the present application provides a control box with detachable hinge and opening and closing method, so as to meet the use requirements of different opening and closing directions of users, and also facilitate the change of opening direction after the user installs the control box and uses it.

[0006] The technical scheme adopted by the present application is as follows: A control box with detachable hinge, comprising a box body and a box cover, a plurality of insertion holes are fixedly arranged on the two box body side walls corresponding to the opening and closing direction of the box cover, a plurality of connecting columns corresponding to the insertion holes are fixedly arranged on the box cover; Further comprising a plurality of insertion pieces, which are arranged corresponding to the plurality of insertion holes on one box body side wall, one end of each insertion piece is provided with a connecting hole, the connecting hole is rotationally connected with the corresponding connecting column, and the other end of each insertion piece is inserted into the corresponding insertion hole; The connecting column rotates in the connecting hole, so that the box cover swings along the opening and closing direction.

[0007] As a further improvement of the above technical scheme: Each insertion piece comprises: A body portion is slidingly connected with the insertion hole along the depth direction of the box body; The connecting hole is fixedly arranged at one end of the body portion along the sliding direction; A limiting part is located at the other end of the sliding direction of the body part, and the limiting part is elastically connected with the body part. When an external force is applied to the limiting part, the equivalent size of the plug-in part at the limiting part in the radial direction of the insertion hole can adapt to the change of the insertion hole. When the box body and the box cover are closed, the displacement of the body part towards the bottom of the box body is limited. When the box body and the box cover are separated, the displacement of the body part towards the outside of the box body is limited when the limiting part contacts the end of the insertion hole, and the connecting column rotates in the connecting hole to swing the box cover in the opening and closing direction.

[0008] The insertion hole is arranged on the inner wall of the box body.

[0009] The end of the body part is provided with two first protrusions along the axial direction of the connecting hole, and each first protrusion is provided with the connecting hole. The side wall of the connecting hole is provided with an opening. The box cover is provided with a second protrusion, the connecting column includes a first cylindrical body and a second cylindrical body fixed to the second protrusion, the first cylindrical body and the second cylindrical body are coaxially arranged on both sides of the second protrusion, and the first cylindrical body and the second cylindrical body are respectively connected with a connecting hole.

[0010] One end of the body part is provided with an avoiding hole, the limiting part is located in the avoiding hole, and a first elastic arm connects the limiting part with the inner wall of the avoiding hole. The connecting hole and the first elastic arm are respectively located on both sides of the limiting part along the sliding direction of the body part.

[0011] The end of the body part is provided with a second elastic arm, and the end of the second elastic arm is provided with the limiting part.

[0012] The body part includes a sheet-shaped body, and the sheet-shaped body is provided with a reinforcing rib on the side away from the limiting part.

[0013] The side wall of the box body is formed with a third protrusion, and the third protrusion is provided with the insertion hole.

[0014] The box body, the box cover and the plug-in part are all made of plastic material, the insertion hole is integrally formed with the box body, the connecting column is integrally formed with the box cover, and the plug-in part is an integrally formed structure.

[0015] A method for opening and closing a control box with a detachable hinge, the control box comprising a box body and a box cover, the box cover being provided with a plurality of connecting columns coaxial along the edge direction of the box cover, the box body being provided with a plurality of insertion holes, the insertion holes being slidably inserted with plug-in parts along the depth direction of the box body, and the connecting columns being rotationally matched with the connecting holes on the plug-in parts. When the box cover is opened, the box body and the box cover are separated along the depth direction of the box body, the plug-in part moves in the insertion hole towards the outside of the box body, and then the box cover is pushed to rotate the connecting column in the connecting hole, and the box cover is opened; When the box cover is closed, the box cover is pushed to swing towards the box body until the box cover is parallel to the abutting surface of the box body and the sealing structure on the box body is opposite to the box cover, the box cover is pushed to move the box cover and the plug-in part towards the inside of the box body, the box cover contacts the sealing structure on the box body, and then the box cover is connected with the box body by using the fastener.

[0016] The present application has the following advantages: The present application has the following advantages:

[0017] The present application has the following advantages: (1) The sliding plug-in connection of the plug-in part and the insertion hole is convenient for the installation and disassembly of the plug-in part, the plug-in part has a movement allowance in the insertion hole, the box cover and the box body can be in contact along the depth direction of the box body when the box cover is closed, the contact state of the box cover and the box body is uniform along the annular direction of the contact position, and the good sealing of the box cover and the box body is ensured.

[0018] (2) The sliding plug-in connection of the plug-in part and the insertion hole also facilitates the arrangement of the insertion hole on the inner wall of the box body, and the built-in hinge structure is arranged on the inside of the box body, so that the appearance of the control box and the safety of the hinge structure are ensured.

[0019] (3) The two connecting holes are symmetrically arranged at the end of the body part, the two cylindrical bodies are symmetrically arranged on the second protrusion of the box cover, the plug-in part and the rotating connection structure of the box cover are symmetrical structures about the insertion direction of the plug-in part, the plug-in part can be installed in the reverse direction after the opening and closing direction of the box cover is changed, and only one specification of the plug-in part can be designed to adapt to the box covers with different opening and closing directions.

[0020] (4) The first elastic arm elastically connecting the limiting part and the body part is arranged along the movement direction of the plug-in part, when the limiting part contacts the insertion hole, the component force of the limiting part in the bending direction of the first elastic arm is reduced, the failure of the first elastic arm is avoided, and the service life of the plug-in part is prolonged.

[0021] (5) The limiting part is directly connected with the end of the body part by the second elastic arm with elastic deformation, which shortens the size of the plug-in part in the sliding direction, and makes the plug-in part suitable for the case that the depth of the box body is limited.

[0022] (6) The plug-in part is connected with the plug hole in the sliding mode, and the plug-in part has a moving allowance in the plug hole, which can ensure the good sealing of the box cover and the box body by artificially controlling the relative position of the box cover and the box body when the box cover and the box body are closed, and reduces the requirement for the size of the hinged structure. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an exploded view of the control box according to an embodiment of the present application.

[0024] Figure 2 It is an exploded view of the control box according to an embodiment of the present application (another view).

[0025] Figure 3 It is a sectional view of the control box in the closed state according to an embodiment of the present application.

[0026] Figure 4 It is a state diagram of the box body and the box cover of the control box according to an embodiment of the present application in the state of being separated along the depth direction of the box body.

[0027] Figure 5 It is a state diagram of the control box according to another embodiment of the present application when the box cover is opened.

[0028] Figure 6 It is a structural schematic diagram of the plug-in part according to an embodiment of the present application.

[0029] Figure 7 It is a structural schematic diagram of the plug-in part according to an embodiment of the present application (another view).

[0030] Figure 8 It is a state diagram of the control box according to another embodiment of the present application when the box cover is opened.

[0031] Figure 9 It is a structural schematic diagram of the plug-in part according to another embodiment of the present application.

[0032] Figure 10 It is a structural schematic diagram of the plug-in part according to another embodiment of the present application (another view).

[0033] Figure 11 It is a state diagram of the control box according to an embodiment of the present application when the box cover is opened.

[0034] Wherein: 1, box body; 10, via hole; 11, third protrusion; 2. Insertion hole; 3. Connector; 31. Limiting part; 32. Body part; 33. Connecting hole; 34. First protrusion; 35. Clearance hole; 36. First elastic arm; 37. Reinforcing rib; 38. Second elastic arm; 4. Connecting column; 401. First cylinder; 402. Second cylinder; 5. Box lid; 51. Second protrusion. Detailed Implementation

[0035] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0036] like Figures 1-3 As shown, an embodiment of this application provides a control box with a detachable hinge, including a box body 1 and a box cover 5. Multiple insertion holes 2 are fixed on two side walls of the box body 1 corresponding to the opening and closing direction of the box cover 5, and multiple connecting posts 4 corresponding to the insertion holes 2 are fixed on the box cover 5. It also includes multiple connectors 3, which are provided with multiple sockets 2 on a side wall of a box 1. One end of a single connector 3 is provided with a connection hole 33, which is rotatably connected to the corresponding connecting post 4. The other end of a single connector 3 is inserted into the corresponding socket 2. The connecting post 4 rotates within the connecting hole 33, causing the cover 5 to swing in the opening and closing direction.

[0037] Specifically, such as Figure 1 As shown, the depth direction of box 1 is... Figure 1 In the diagram, X, Y, and Z represent the width and length directions of the rectangular opening of box 1. Typically, when box 1 is fixedly installed on a wall, the length direction of box 1 is vertical, and the width direction is horizontal. The insertion of connector 3 into socket 2 enables a detachable connection between connector 3 and box 1. The cover 5 is indirectly hinged to box 1 via a hinge with connector 3. The hinge connection between cover 5 and box 1 is located on one long side of box 1. Multiple connecting posts 4 are coaxial along the edge of cover 5. There are at least two connectors 3, which are arranged along the extension direction of the long side. The side wall of box 1 is provided with through holes 10 for wires to pass through, facilitating the lead-out of the connecting wires of the devices inside box 1. Typically, to ensure the waterproofness of the control box, through holes 10 face the ground.

[0038] In this embodiment, multiple insertion holes 2 are fixed on both side walls of the box body 1, and connecting posts 4 corresponding to the insertion holes 2 are fixed on both sides of the box cover 5, so that the box body 1 and the box cover 5 are equipped with a structure for hinged installation of the box cover 5, which facilitates changing the opening and closing direction of the box cover 5. The detachable hinge structure in this example includes connecting posts 4 and plug-in parts 3. The hinge can be detached and the opening and closing direction can be changed by connecting and separating the plug-in parts 3 from the connecting posts 4 and the box body 1.

[0039] When it is necessary to change the opening and closing direction of the lid 5, pull the connector 3 out of the socket 2, and at the same time separate the connecting hole 33 on the connector 3 from the current connecting post 4. Then connect the connecting hole 33 of the connector 3 to the connecting post 4 on another side wall of the box body 1, and then plug the connector 3 into the corresponding socket 2.

[0040] Specifically, such as Figure 11 As shown, when the insertion hole 2 is located on the outer wall of the box body 1, the connecting post 4 and the connecting hole 33 are both located outside the box cover 5 and the box body 1. The insertion piece 3 can be fixed relative to the box body 1. When the box cover 5 is opened and closed, it swings around the connecting post 4 that is fixed relative to the box body 1.

[0041] Multiple insertion holes 2 are fixed on both side walls of the box body 1. Connecting posts 4, which are used in conjunction with the insertion holes 2, are fixed on both sides of the corresponding box cover 5. The connecting posts 4 are detachably hinged to the insertion parts 3 and detachably inserted to the insertion holes 2, so that the box body 1 and the box cover 5 of the same specification can meet the configuration requirements of opening in two different directions. Only one set of molding molds for the box body 1 and the box cover 5 is needed, which reduces the production cost of the control box and meets the user's needs for different opening and closing directions. At the same time, it is also convenient for users to change the opening direction after installing and using the control box.

[0042] like Figures 1-4 As shown, in an exemplary embodiment, a single connector 3 includes a body portion 32, a connection hole 33, and a limiting portion 31.

[0043] The main body 32 is slidably connected to the insertion hole 2 along the depth direction of the box body 1; A connecting hole 33 is fixedly disposed at one end of the main body 32 along the sliding direction; The limiting part 31 is located at the other end of the sliding direction of the main body part 32. The limiting part 31 is elastically connected to the main body part 32. An external force is applied to the limiting part 31 so that the equivalent size of the plug 3 in the radial direction of the plug hole 2 can adapt to the change of the plug hole 2. When the box body 1 and the box cover 5 are closed, the contact between the box body 1 and the box cover 5 restricts the displacement of the main body 32 toward the bottom of the box body 1; After the box body 1 and the lid 5 are separated, when the limiting part 31 contacts the end of the insertion hole 2, it restricts the displacement of the main body part 32 toward the outside of the box body 1. The connecting post 4 rotates in the connecting hole 33, causing the lid 5 to swing in the opening and closing direction. The main body part 32 slides in the insertion hole 2, causing the box body 1 and the lid 5 to contact or separate along the depth direction of the box body 1.

[0044] Specifically, the insertion hole 2 is a through hole, and the insertion part 3 is movably inserted into the insertion hole 2, that is, has a sliding degree along the axis direction of the insertion hole 2. When the body part 32 is slidably connected with the insertion hole 2, the limiting part 31 and the connecting hole 33 are respectively located outside the two ends of the insertion hole 2, so as to limit the insertion part 3 along the axis direction of the insertion hole 2. The limiting part 31 is elastically connected with the body part 32, so that the limiting part 31 can be displaced relative to the body part 32. On one hand, the limiting part 31 can be inserted into the insertion hole 2 after being deformed. On the other hand, after the limiting part 31 passes through the insertion hole 2, the limiting part 31 can limit the insertion part 3 from being separated from the insertion hole 2, and the insertion part 3 can be disassembled and assembled without special tools.

[0045] In the embodiment, the body part 32 is slidably connected with the insertion hole 2, so that the body part 32 has a degree of freedom in the X direction, and the degrees of freedom of the body part 32 in the Y and Z directions in the insertion hole 2 are limited. Therefore, the box cover 5 can be hung on the box body 1 through the insertion part 3, and the box cover 5 can be swung relative to the box body 1. The sliding distance of the limiting part 31 relative to the insertion hole 2 is set such that, after the box body 1 and the box cover 5 are separated, the box body 1 and the box cover 5 do not interfere with each other when the connecting column 4 rotates in the connecting hole 33, so as to realize the swing of the box cover 5 relative to the box body 1 within a preset angle range. As shown in FIG. 6, the preset angle is 90 degrees. The sliding distance of the limiting part 31 relative to the insertion hole 2 is adaptively adjusted according to the specific structure of the box body 1 and the box cover 5 and the size of the preset angle. Figures 3-5

[0046] In the embodiment, the insertion part 3 is movably inserted into the insertion hole 2. The limiting part 31 elastically connected with the body part 32 of the insertion part 3 is arranged at the end of the insertion part 3, so as to facilitate the assembly and disassembly of the insertion part 3. The insertion part 3 has a movable amount in the insertion hole 2, so that the box cover 5 and the box body 1 can be in contact with each other along the depth direction of the box body 1 when the box cover 5 and the box body 1 are closed. The contact state of the box cover 5 and the box body 1 is uniform along the annular direction of the contact position, so as to ensure the good sealing of the box cover 5 and the box body 1.

[0047] The fixed hinge in the prior art is fixed on the box body 1 and the box cover 5. The contact gap of the box body 1 and the box cover 5 at the hinge position is affected by the support of the hinge structure, and then the sealing effect of the box body 1 and the box cover 5 is affected. If the good sealing of the box body 1 and the box cover 5 is to be ensured, the forming size of the hinge structure relative to the box body 1 and the box cover 5 needs to be accurately controlled. If soft sealing is adopted, the sealing structure may be unevenly stressed, which affects the sealing effect.

[0048] The electrical components in the box usually do not need to be frequently operated, and only need to be opened when being maintained. In the embodiment, the box cover 5 and the box body 1 are connected by the fastener along the periphery of the box cover 5 after the box cover 5 and the box body 1 of the control box are closed.​

[0049] A specific assembly process of the control box with detachable hinge (left opening form) of the embodiment is as follows: First, connect the connecting holes 33 on the plurality of splices 3 with the connecting columns 4 on the box cover 5, and the number of splices 3 is at least two; Then, elastically deform the limiting portions 31 on the splices 3, insert the limiting portions 31 into the insertion holes 2 and pass through the insertion holes 2, and then elastically deform the limiting portions 31 to reset, so that the limiting portions 31 and the connecting holes 33 are respectively located outside the two ends of the insertion holes 2 to limit the splices 3.

[0050] When the control box needs to be replaced to a right opening form: First, elastically deform the limiting portions 31 on the splices 3, and then pull out the limiting portions 31 from the insertion holes 2; Then, separate the connecting columns 4 from the connecting holes 33, and then detach the splices 3 from the box cover 5, and then install the splices 3 on the box cover 5 on the other side, and then splice the splices 3 with the insertion holes 2 on the other side, that is, the change of the opening direction of the control box is completed.

[0051] As shown in the Figures 1-3 , in an exemplary embodiment, the insertion holes 2 are arranged on the inner wall of the box body 1. Correspondingly, the connecting columns 4 are located on one side of the inner wall of the box body 1.

[0052] The sliding splicing connection of the splices 3 and the insertion holes 2 also facilitates the arrangement of the insertion holes 2 on the inner wall of the box body 1, and further embeds the hinge structure inside the box body 1, thereby ensuring the appearance beauty of the control box and the safety of the hinge structure.

[0053] As shown in the Figure 2 , Figures 5-7 , in an exemplary embodiment, the end of the body portion 32 is spaced apart by two first protrusions 34 along the axial direction of the connecting hole 33, and each first protrusion 34 is provided with a connecting hole 33, and the side wall of the connecting hole 33 is provided with an opening; The box cover 5 is provided with a second protrusion 51, the connecting column 4 includes a first cylindrical body 401 and a second cylindrical body 402 fixedly arranged on the second protrusion 51, the first cylindrical body 401 and the second cylindrical body 402 are coaxially arranged on both sides of the second protrusion 51, and the first cylindrical body 401 and the second cylindrical body 402 are respectively rotationally connected with a connecting hole 33.

[0054] The connecting hole 33 with the side wall opening arranged on the first protrusion 34 forms a hook structure, and when the connecting column 4 is assembled with the connecting hole 33, the first cylindrical body 401 and the second cylindrical body 402 can be pressed into the connecting hole 33 from the opening on the side wall of the connecting hole 33, and the first protrusion 34 on one side can support the second protrusion 51 along the axial direction of the connecting hole 33, thereby suspending the box cover 5 on the box body 1.

[0055] Two connecting holes 33 are symmetrically arranged at the end of the body part 32, and two cylinders are symmetrically arranged on the second protrusion 51 of the box cover 5, so that the rotating connection structure between each plug-in part 3 and the box cover 5 is a symmetric structure about the insertion direction of the plug-in part 3, facilitating the replacement of the opening and closing direction of the box cover 5, and the plug-in part 3 can be installed in the reverse direction, so that only one specification of plug-in part 3 can be designed to adapt to box covers 5 with different opening and closing directions.

[0056] As shown in Figures 6-7 one exemplary embodiment, one end of the body part 32 is provided with a clearance hole 35, the limiting part 31 is located in the clearance hole 35, and a first elastic arm 36 is further included, which connects the limiting part 31 and the inner wall of the clearance hole 35, and the connecting hole 33 and the first elastic arm 36 are respectively located on both sides of the limiting part 31 along the sliding direction of the body part 32.

[0057] Specifically, the limiting part 31 is elastically connected to the body part 32 through the first elastic arm 36, and a guide slope can be arranged on the limiting part 31, so that when the limiting part 31 contacts the insertion hole 2, the guide slope is forced to drive the limiting part 31 to swing, changing the equivalent size of the plug-in part 3 in the radial cross-sectional direction of the insertion hole 2, so that the plug-in part 3 can pass through the insertion hole 2, and when the limiting part 31 passes through the insertion hole 2, the first elastic arm 36 resets, the end of the limiting part 31 abuts against the end of the insertion hole 2, and the limiting force is along the sliding direction of the plug-in part 3, limiting the displacement of the body part 32 towards the outside of the box body 1.

[0058] The connecting hole 33, the limiting part 31, and the first elastic arm 36 elastically connecting the limiting part 31 and the body part 32 are arranged along the sliding direction of the plug-in part 3, and the first elastic arm 36 is arranged in the clearance hole 35 on the body part 32, so that when the limiting part 31 contacts the insertion hole 2, the component force applied to the limiting part 31 in the bending direction of the first elastic arm 36 is reduced, avoiding the failure of the first elastic arm 36 caused by the failure of the limiting part 31, and prolonging the service life of the plug-in part 3.

[0059] As shown in Figures 8-10 another exemplary embodiment, a second elastic arm 38 is arranged at the end of the body part 32, and the end of the second elastic arm 38 is provided with the limiting part 31.

[0060] Specifically, the limiting part 31 is elastically connected with the body part 32 through the second elastic arm 38, the limiting part 31 and the second elastic arm 38 form a hook at the end of the plug-in part 3, a guide inclined surface can be arranged on the limiting part 31, so that when the limiting part 31 contacts with the insertion hole 2, the guide inclined surface is forced to drive the limiting part 31 to swing, the equivalent size of the plug-in part 3 in the radial cross-sectional direction of the insertion hole 2 is changed, the plug-in part 3 can pass through the insertion hole 2, and when the limiting part 31 passes through the insertion hole 2, the end surface of the limiting part 31 on the side of the second elastic arm 38 contacts with the end of the insertion hole 2, and the displacement of the body part 32 towards the outside of the box body 1 is limited.

[0061] The second elastic arm 38 with elastic deformation is directly arranged at the end of the body part 32 to connect the limiting part 31, the size of the plug-in part 3 in the sliding direction is shortened, the plug-in part 3 is suitable for the case that the depth of the box body 1 is limited, and the control box size range suitable for the opening and closing direction structure of the box cover 5 can be changed.

[0062] As shown in Figure 7 , Figure 10 , in an exemplary embodiment, the body part 32 includes a sheet-shaped body, and the sheet-shaped body is provided with a reinforcing rib 37 on the side away from the limiting part 31. In the case of reducing the material amount of the plug-in part 3, the structural strength of the body part 32 is ensured.

[0063] As shown in Figure 1 , Figure 2 , in an exemplary embodiment, the side wall of the box body 1 is formed with a third protrusion 11, and the insertion hole 2 is arranged on the third protrusion 11.

[0064] The box body 1, the box cover 5 and the plug-in part 3 are all made of plastic material, the insertion hole 2 is integrally formed with the box body 1, the connecting column 4 is integrally formed with the box cover 5, and the plug-in part 3 is an integrally formed structure.

[0065] In an exemplary embodiment, as shown in Figures 3-5 , the application provides an opening and closing method of a control box with a detachable hinge, the control box includes a box body 1 and a box cover 5, the box cover 5 is provided with a plurality of connecting columns 4 coaxial along the edge direction of the box cover 5, the box body 1 is provided with a plurality of insertion holes 2, the plug-in part 3 is slidably inserted into the insertion hole 2 along the depth direction of the box body 1, and the connecting column 4 is rotationally matched with the connecting hole 33 on the plug-in part 3. When the box cover 5 is opened, the box body 1 and the box cover 5 are separated along the depth direction of the box body 1, the plug-in part 3 moves towards the outside of the box body 1 in the insertion hole 2, then the box cover 5 is pushed to make the connecting column 4 rotate in the connecting hole 33, and the box cover 5 is opened. When the box cover 5 is closed, the box cover 5 is pushed to swing towards the box body 1 until the box cover 5 is parallel to the abutting surface of the box body 1, and the sealing structure on the box cover 5 is opposite to the sealing structure on the box body 1. The box cover 5 is pushed to move towards the inside of the box body 1, and the box cover 5 contacts the sealing structure on the box body 1. Then, the box cover 5 is connected with the box body 1 by using fasteners. Specifically, after the box cover 5 and the box body 1 are closed, the box cover 5 and the box body 1 are connected by using fasteners along the periphery of the box cover 5, so that the box cover 5 and the box body 1 are well sealed.

[0066] The two side walls of the box body 1 corresponding to the opening and closing direction of the box cover 5 are fixed with a plurality of insertion holes 2, and the box cover 5 is fixed with a plurality of connecting columns 4 corresponding to the insertion holes 2. When it is needed to change the opening and closing direction of the box cover 5, the insertion piece 3 is pulled out of the insertion hole 2, and the connecting hole 33 on the insertion piece 3 is separated from the connecting column 4. Then, the connecting hole 33 on the insertion piece 3 is connected with the connecting column 4 on the other side wall of the box body 1, and the insertion piece 3 is inserted into the corresponding insertion hole 2.

[0067] The sliding insertion connection between the insertion piece 3 and the insertion hole 2 has a movement allowance of the insertion piece 3 in the insertion hole 2. When the box cover 5 and the box body 1 are closed, the relative position of the box cover 5 and the box body 1 is artificially controlled, so that the box cover 5 and the box body 1 are well sealed, and the requirement for the forming size of the hinged structure is reduced.

[0068] The above description is an explanation of the application, not a limitation of the application. The scope of the application is defined in the claims. Within the protection scope of the application, any form of modification can be made.

Claims

1. A control box with a detachable hinge, characterized in that: Includes a box body (1) and a box cover (5). Multiple insertion holes (2) are fixed on the two side walls of the box body (1) corresponding to the opening and closing direction of the box cover (5). Multiple connecting posts (4) corresponding to the insertion holes (2) are fixed on the box cover (5). It also includes multiple connectors (3), which are provided with multiple sockets (2) on the side wall of a box (1). One end of each connector (3) is provided with a connection hole (33), which is rotatably connected to the corresponding connecting post (4). The other end of each connector (3) is plugged into the corresponding socket (2). The connecting post (4) rotates within the connecting hole (33), causing the lid (5) to swing in the opening and closing direction.

2. The control box with a detachable hinge as described in claim 1, characterized in that: A single connector (3) includes: The main body (32) is slidably connected to the insertion hole (2) along the depth direction of the box (1); The connecting hole (33) is fixed at one end of the body part (32) along the sliding direction; The limiting part (31) is located at the other end of the sliding direction of the main body part (32). The limiting part (31) is elastically connected to the main body part (32). An external force is applied to the limiting part (31) so that the equivalent size of the plug (3) at the limiting part (31) in the radial direction of the plug hole (2) can adapt to the change of the plug hole (2). When the box body (1) and the box cover (5) are closed, the displacement of the main body (32) toward the bottom of the box body (1) is restricted. After the box body (1) is separated from the box cover (5), when the limiting part (31) contacts the end of the insertion hole (2), it restricts the displacement of the main body part (32) toward the outside of the box body (1), and the connecting post (4) rotates in the connecting hole (33), causing the box cover (5) to swing in the opening and closing direction.

3. The control box with a detachable hinge as described in claim 2, characterized in that: The insertion hole (2) is located on the inner wall of the box body (1).

4. The control box with a detachable hinge as described in claim 2, characterized in that: The end of the main body (32) is provided with two first protrusions (34) spaced apart along the axial direction of the connecting hole (33), and each first protrusion (34) is provided with the connecting hole (33), and the side wall of the connecting hole (33) is provided with an opening. The cover (5) is provided with a second protrusion (51). The connecting post (4) includes a first cylinder (401) and a second cylinder (402) fixed on the second protrusion (51). The first cylinder (401) and the second cylinder (402) are located on both sides of the second protrusion (51) and are coaxially arranged. The first cylinder (401) and the second cylinder (402) are rotatably connected to a connecting hole (33) respectively.

5. The control box with a detachable hinge as described in claim 2, characterized in that: One end of the main body (32) is provided with a clearance hole (35), the limiting part (31) is located in the clearance hole (35), and also includes a first elastic arm (36). The first elastic arm (36) connects the limiting part (31) to the inner wall of the clearance hole (35). The connecting hole (33) and the first elastic arm (36) are respectively located on both sides of the limiting part (31) along the sliding direction of the main body (32).

6. The control box with a detachable hinge as described in claim 2, characterized in that: The end of the main body (32) is provided with a second elastic arm (38), and the end of the second elastic arm (38) is provided with the limiting part (31).

7. The control box with a detachable hinge as described in claim 2, characterized in that: The main body (32) includes a sheet-like body, and a reinforcing rib (37) is provided on the side of the sheet-like body away from the limiting part (31).

8. The control box with a detachable hinge as described in claim 1, characterized in that: The side wall of the box (1) is formed with a third protrusion (11), and the third protrusion (11) is provided with the insertion hole (2).

9. The control box with a detachable hinge as described in claim 1, characterized in that: The box body (1), the box cover (5) and the connector (3) are all made of plastic. The socket (2) is integrally formed with the box body (1), the connecting post (4) is integrally formed with the box cover (5), and the connector (3) is an integrally formed structure.

10. A method for opening and closing a control box with a detachable hinge, characterized in that: The control box includes a box body (1) and a box cover (5). The box cover (5) is provided with a plurality of connecting posts (4) coaxial along the edge direction of the box cover (5). The box body (1) is provided with a plurality of insertion holes (2). A connector (3) is slidably inserted into the insertion hole (2) along the depth direction of the box body (1). The connecting posts (4) and the connecting holes (33) on the connector (3) are rotatably engaged. When the box cover (5) is opened, the box body (1) and the box cover (5) are separated along the depth direction of the box body (1), so that the plug (3) moves towards the outside of the box body (1) in the plug hole (2), and then the box cover (5) is pushed so that the connecting post (4) rotates in the connecting hole (33), and the box cover (5) is opened. When closing the lid (5), push the lid (5) so that the lid (5) swings toward the box body (1) until the mating surfaces of the lid (5) and the box body (1) are parallel and the sealing structure on the lid (5) is facing the box body (1). Push the lid (5) so that the lid (5) and the connector (3) move toward the inside of the box body (1) and the lid (5) contacts the sealing structure on the box body (1). Then use fasteners to connect the lid (5) to the box body (1).

Images