Ventilation valve and box body

Abstract

The utility model relates to the technical field of ventilation valve installation, and discloses a ventilation valve and a box body, the ventilation valve comprises an installation seat, a first nut and a valve body, the middle part of the valve body is provided with a connecting rod screwed with the first nut, the installation seat comprises a bottom plate, the bottom plate is provided with a first installation hole, and the edge of the bottom plate is sequentially connected with a first edge, a second edge, a third edge and a fourth edge; the first edge and the third edge are provided with first limiting parts, and the free ends of the first limiting parts extend towards the side away from the bottom plate and incline towards the middle of the bottom plate. Second limiting parts are arranged on the second edge and the fourth edge and comprise first plates and second plates, the first plates are connected with the bottom plate, the free ends of the first plates extend towards the side away from the bottom plate and are connected with the second plates, and the second plates extend towards the outer side of the bottom plate and are provided with second mounting holes; the first nut is arranged between the first limiting part and the second limiting part, and the connecting rod penetrates through the first mounting hole. The ventilation valve can be directly replaced outside the box body, so that the opening frequency of the box body is reduced, and the leakproofness in the box body is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation valve installation technical field, especially a ventilation valve and box. BACKGROUND

[0002] With the profound reform of global energy structure, the popularization and application of renewable energy have become the development trend of the world today. Under this background, the inverter as the key equipment connecting renewable energy power generation equipment and power grid, its importance is increasingly prominent.

[0003] Because the internal integration and energy density of inverter equipment are also higher and higher, under the influence of internal devices and working environment temperature, the equipment can cause the big pressure difference of inside and outside, therefore needs to install the ventilation valve on the product to protect the internal device of inverter, and then prolongs the service life of inverter.

[0004] The existing ventilation valve is arranged in the box of inverter, when the equipment box needs to do airtightness verification or the ventilation valve body needs to be replaced, the equipment box must be opened to operate the ventilation valve, the operation is cumbersome, is not easy to maintain, and if the box is frequently opened, the sealing property of the box can be reduced, and normal use is affected. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a ventilation valve that can be directly replaced outside the box.

[0006] In order to solve the above technical problem, the utility model provides a ventilation valve, which comprises a mounting seat, a first nut and a valve body, a connecting rod is arranged in the middle of the valve body and is screwed with the first nut.

[0007] The mounting seat comprises a bottom plate, a first mounting hole is arranged in the middle of the bottom plate, two opposite edges of the bottom plate are a first edge and a third edge, a second edge and a fourth edge are arranged adjacent to the first edge and the third edge, and the first edge, the second edge, the third edge and the fourth edge are connected end to end; a first limiting part is arranged on the first edge and the third edge, the free end of the first limiting part extends away from the bottom plate and inclines to the middle of the bottom plate; a second limiting part is arranged on the second edge and the fourth edge, the second limiting part comprises a first plate and a second plate, the first plate is connected with the bottom plate, the free end of the first plate extends away from the bottom plate, the free end of the first plate is connected with the second plate, the second plate extends to the outside of the bottom plate, and a second mounting hole is arranged on the second plate; wherein the first nut is arranged between the first limiting part and the second limiting part, and the connecting rod passes through the first mounting hole.

[0008] Furthermore, the first plate of the two second limiting portions is disposed between the two first limiting portions, and a gap is formed between the first plate of the two second limiting portions and the two first limiting portions.

[0009] Furthermore, the base plate, the first limiting part, and the second limiting part are integrally formed, and the mounting base is made of a bendable material.

[0010] Furthermore, the inclination angle α between the first plate of the second limiting part and the bottom plate is 75° to 90°.

[0011] Furthermore, the free end of the first limiting part is provided with a bent section.

[0012] Furthermore, the bent sections of the two first limiting portions are arranged facing away from each other.

[0013] A second aspect of this utility model provides a housing, comprising:

[0014] The sidewall has a third mounting hole and two fourth mounting holes.

[0015] A vent valve, wherein the vent valve includes a valve body as described above, the mounting base is disposed on the inner side of the side wall, and the second plate abuts against the side wall, the valve body is disposed on the outer side of the side wall, and the connecting rod passes through the third mounting hole, the first nut, and the first mounting hole in sequence.

[0016] A fastening assembly is provided through the fourth mounting hole and the second mounting hole to fix the mounting base onto the housing.

[0017] Furthermore, the fastening assembly includes a screw and a second nut connected to the screw, the screw being disposed on the outer side of the sidewall and passing through the fourth mounting hole and the second mounting hole, and the second nut being disposed at the end of the second plate away from the sidewall.

[0018] Furthermore, the diameters of both the first mounting hole and the third mounting hole are smaller than the outer diameter of the first nut.

[0019] Furthermore, the third mounting hole includes at least one of a circular hole and a polygonal hole.

[0020] Compared with the prior art, the beneficial effects of this embodiment of the vent valve and housing are as follows: The mounting base is provided with a first limiting part and a second limiting part to limit the first nut. The free end of the first limiting part extends away from the bottom plate and tilts towards the middle of the bottom plate, its tilting function being used to clamp the first nut placed therein. The second limiting part includes a first plate and a second plate. The free end of the first plate extends away from the bottom plate and is used to clamp the first nut. The second plate is connected to the free end of the first plate and extends outward from the bottom plate. The outward extension of the second plate does not affect the first nut located in the mounting base. A second mounting hole is provided on the second plate. By using a fastening component acting on the second mounting hole of the second plate and a fourth mounting hole on the side wall, the mounting base can be securely installed onto the inner side of the housing side wall. The valve body of the vent valve can be connected to the first nut by passing through the third mounting hole on the outer side wall of the box. This allows the vent valve to be replaced directly from the outside of the box, reducing the frequency of opening the box and ensuring the airtightness and waterproofness of the box. It also helps to save installation space inside the box. Attached Figure Description

[0021] Figure 1 This is an exploded structural diagram of the vent valve in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the mounting base in an embodiment of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the mounting base from another angle in an embodiment of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the first nut of the vent valve installed on the mounting base in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the vent valve body installed on the mounting base in an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the unfolded structure of the mounting base in an embodiment of this utility model;

[0027] Figure 7 This is a schematic diagram of the fastening assembly fixing the mounting base to the side wall in an embodiment of this utility model;

[0028] Figure 8 This is a schematic diagram of the sidewall structure in an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the box in an embodiment of this utility model.

[0030] In the diagram, 100 is the housing; 1 is the vent valve; 10 is the mounting base; 11 is the base plate; 111 is the first mounting hole; 12 is the first limiting part; 121 is the bent section; 13 is the second limiting part; 131 is the first plate; 132 is the second plate; 133 is the second mounting hole; 14 is the mounting groove; 20 is the first nut; 30 is the valve body; 301 is the connecting rod; 2 is the side wall; 21 is the third mounting hole; 22 is the fourth mounting hole; 3 is the fastening assembly; 31 is the screw; and 32 is the second nut. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the embodiments of the application, "parallel" refers to a state in which the angle formed by two lines, a line and a surface, or a surface is -1° to 1°. "Perpendicular" refers to a state in which the angle formed by two lines, a line and a surface, or a surface is 89° to 91°. Equal distances, equal angles, or equal areas refer to a state in which the tolerance range is -1% to 1%.

[0036] See Figures 1 to 9 As shown, a preferred embodiment of the present utility model includes a vent valve 1, a mounting base 10, a first nut 20 and a valve body 30, wherein a connecting rod 301 is provided in the middle of the valve body 30 and is screwed to the first nut 20.

[0037] The mounting base 10 includes a base plate 11, a first limiting part 12, and a second limiting part 13. The base plate 11 has a first mounting hole 111 in its center. Two opposite sides of the base plate 11 are designated as a first side and a third side. Adjacent to the first and third sides are a second side and a fourth side, which are connected end-to-end. The first limiting part 12 is located on the first and third sides, and the second limiting part 13 is located on the second and fourth sides.

[0038] In this embodiment of the utility model, the first limiting part 12 and the second limiting part 13 are together enclosed on one side of the base plate 11, and the base plate 11, the first limiting part 12, and the second limiting part 13 enclose a mounting groove 14, which is used to install the first nut 20.

[0039] Specifically, the base plate 11 can be square, rectangular, circular, or other shapes, with the first and third sides having the same length, and the second and fourth sides having the same length. Additionally, the first and second sides can have the same length. In practical use, the base plate 11 can be designed to completely accommodate the first nut 20 within the mounting groove 14, allowing the first and second limiting parts to elastically press against the first nut 20. The first mounting hole 111 on the base plate 11 can be any shape, such as circular or polygonal, but its size must allow the connecting rod 301 of the valve body 30 to pass through, enabling operations such as checking the airtightness of the box 100 from outside the box 100.

[0040] In this embodiment, the free end of the first limiting part 12 extends away from the base plate 11 and is inclined toward the middle of the base plate 11; the second limiting part includes a first plate 131 and a second plate 132. The first plate 131 is connected to the base plate 11, the free end of the first plate 131 extends away from the base plate 11, the free end of the first plate 131 is connected to the second plate 132, the second plate 132 extends outward from the base plate 11, and a second mounting hole 133 is provided on the second plate 132.

[0041] Specifically, the first plates 131 of the first limiting part 12 and the second limiting part 13 are plate-shaped structures. The height of the first limiting part 12 and the height of the first plates 131 in the second limiting part 13 are similar. Since the first nut 20 is disposed in the mounting groove 14, and for the stability of the first nut 20, the base plate 11, the first limiting part 12, the first plates 131 of the second limiting part 13, and the first nut 20 are arranged to abut against each other during installation. Optionally, in order to completely surround the first nut 20, the height of the first limiting part 12 and the height of the first plates 131 in the second limiting part 13 should be greater than or equal to the height of the first nut 20. Preferably, the height of the first limiting part 12 and the height of the first plates 131 in the second limiting part 13 should be equal to the height of the first nut 20.

[0042] Specifically, the second plate 132 of the second limiting part 13 is connected to the first plate 131 of the second limiting part 13, and the second plate 132 has a plate-like structure. When the mounting base 10 is installed on the side wall 2 of the housing 100, the second plate 132 of the second limiting part 13 is completely in contact with the side wall 2 of the housing 100. By fixing the second plate 132 of the second limiting part 13 to the side wall 2 of the housing 100, the operation of installing the mounting base 10 onto the side wall 2 of the housing 100 is completed.

[0043] In this embodiment of the invention, the mounting base 10 has a simple structure, and its structure can secure the first nut 20 of the vent valve 1 in the mounting base 10, thereby ensuring the stability of the subsequent installation of the valve body 30. Furthermore, the operation of installing the mounting base 10 onto the side wall 2 of the housing 100 where the vent valve 1 needs to be used is simple.

[0044] In one embodiment of this utility model, the base plate 11, the first limiting part 12 and the second limiting part 13 are integrally formed, and the mounting base 10 is made of a bendable material.

[0045] Alternatively, the flexible materials may include stainless steel, aluminum alloy, copper, and other metal materials.

[0046] Preferably, in this embodiment, the mounting base 10 is made of sheet metal.

[0047] Specifically, the base plate 11, the first limiting part 12, and the second limiting part 13 are all made of plate material, and the first limiting part 12 is connected to the base plate 11, and the second limiting part 13 is also connected to the base plate 11. Since the mounting base 10 is made of bendable sheet metal, the first limiting part 12 and the second limiting part 13 can be bent or straightened. See [reference needed] Figure 5 As shown, when the base plate 11, the first limiting part 12 and the second limiting part 13 are all on the same plane, the mounting base 10 is in an unassembled unfolded state.

[0048] During the manufacturing process of the mounting base 10, the blanking method is laser blanking, and the blanking is based on the unfolded drawing of the mounting base 10, that is, the mounting base 10 is in its unassembled unfolded state as the basis for blanking. After blanking is completed, the first limiting part 12 and the second limiting part 13 can be bent according to actual needs to form the mounting base 10 with a mounting groove 14 in the middle. There is no need to weld the mounting base 10, which simplifies the manufacturing process of the mounting base 10.

[0049] In this embodiment, the first plate 131 of the two second limiting portions 13 is disposed between the two first limiting portions 12, and a gap is formed between the first plate 131 of the two second limiting portions 13 and the two first limiting portions 12.

[0050] See Figure 5 As shown, specifically, the first limiting part 12 is disposed on the first side and the third side of the base plate 11, and the length of the side connecting the first limiting part 12 to the base plate 11 is longer than the sum of the thickness of the first side (or the third side) and the thickness of the two second plates 132.

[0051] In other words, when the mounting base 10 is in the assembly state, the second limiting part 13 is located between the two first limiting parts 12. The first limiting part 12 can contact the edge of the first plate 131 in the second limiting part 13, thereby clamping the first plate 131 and ensuring that the position of the first plate 131 remains unchanged.

[0052] In this embodiment, the inclination angle α between the first plate 131 of the second limiting part 13 and the bottom plate 11 is 75° to 90°.

[0053] Specifically, the side connecting the first plate 131 and the second (or fourth) side of the base plate 11 in the second limiting part 13 has the same length as the second (or fourth) side. When in the assembly state, the first plate 131 is positioned between the two first limiting parts 12. The tilt angle α between the first plate 131 and the base plate 11 is 75° to 90°. If the tilt angle α is less than 75° or greater than 90°, the second limiting part 13 cannot securely fix the first nut 20. If the tilt angle α is less than 75°, the length between the contact point between the first plate 131 and the first nut 20 and the contact point between the first nut 20 and the base plate 11 is short, making it impossible to securely fasten the first nut 20. If the tilt angle α is greater than 90°, the second limiting part 13 and the first limiting part 12 do not form a fully connected state, and the first nut 20 may fall off the mounting base 10 from the first plate 131. In use, the tilt degree of the first plate 131 can be adjusted according to actual needs.

[0054] See Figure 2 As shown, in one embodiment of the present invention, the free end of the first limiting part 12 is provided with a bent section 121.

[0055] Optionally, the bending segment 121 provided at the free end of the first limiting part 12 can be a straight edge bend or an arc bend, and the bending segment 121 can be bent towards the bottom center or towards the bottom outer side.

[0056] In one embodiment of this utility model, the bent sections 121 of the two first limiting portions 12 are arranged facing away from each other. The oppositely arranged bent sections 121 are equivalent to a gripping element at the free end of the first limiting portion 12. When using this embodiment, the bent sections 121 provide the operator with a natural and easy-to-grip area, reducing the risk of hand slippage. It also improves safety by preventing the operator's hands from being cut or squeezed when the side panels are thin or sharp. By setting the bent sections 121, these sharp edges can be hidden or blunted, significantly reducing the risk of injury and improving overall safety.

[0057] See Figure 6As shown, a second aspect of this utility model provides a housing 100, including: a side wall 2, a vent valve 1, and a fastening assembly 3. The side wall 2 is provided with a third mounting hole 21 and two fourth mounting holes 22; the vent valve 1 includes a vent valve 1 body and a first nut 20, and the vent valve 1 body and the first nut 20 are connected by a threaded connection between the external thread of the vent valve 1 body and the internal thread of the first nut 20.

[0058] Specifically, the mounting base 10 is disposed on one side of the side wall 2 located inside the housing 100, and the second plate 132 abuts against the side wall 2. The second mounting hole 133 on the second plate 132 is aligned with the two fourth mounting holes 22 on the side wall 2. The fastening component 3 passes through the fourth mounting hole 22 and the second mounting hole 133 in sequence so that the mounting base 10 is securely mounted on the side wall 2.

[0059] Specifically, the fastening assembly 3 includes a screw 31 and a second nut 32 connected to the screw 31. The connection between the screw 31 and the second nut 32 can be achieved through the external thread of the screw 31 and the internal thread of the second nut 32. The screw 31 is located on the outer side of the side wall 2 and passes through the fourth mounting hole 22 and the second mounting hole 133 in sequence. The second nut 32 is located at the end of the second plate 132 away from the side wall 2.

[0060] Simultaneously, after the mounting base 10 is installed onto the side wall 2, the first nut 20 is positioned between the first limiting part 12, the second limiting part 13 of the mounting base 10, and the side wall 2. In other words, the first nut 20 of the vent valve 1 is surrounded in the middle by the mounting base 10 and the side wall 2. A third mounting hole 21 is provided on the side wall 2. When the valve body of the vent valve 1 located on the outer side wall 2 of the housing 100 passes through the third mounting hole 21, it can be connected to the first nut 20 located on the inner side wall 2 of the housing 100, thereby completing the installation of the vent valve 1. During installation, the valve body of the vent valve 1 passes sequentially through the third mounting hole 21, the first nut 20, and the first mounting hole 111.

[0061] In this embodiment, the diameter of the first mounting hole 111 is smaller than the outer diameter of the first nut 20, and the diameter of the third mounting hole 21 is smaller than the outer diameter of the first nut 20. This arrangement prevents the first nut 20 from falling out of the first mounting hole 111 or the third mounting hole 21 and thus detaching from the mounting base 10 and the side wall 2. The diameter limitation of the first mounting hole 111 and the third mounting hole 21 allows the first nut 20 to be securely installed between the mounting base 10 and the side wall 2, thereby providing a stable support for the valve body of the vent valve 1 connected thereto.

[0062] Optionally, the third mounting hole 21 can be at least one of a circular hole and a polygonal hole; the corresponding connecting rod 301 of the valve body 30 can be at least one of a cylindrical body and a polygonal body, so that the connecting rod 301 of the valve body 30 can pass smoothly through the third mounting hole 21.

[0063] The working process of this utility model is as follows: First, place the first nut 20 of the vent valve 1 on the assembled mounting base 10, so that the first plates 131 of the first limiting part 12 and the second limiting part 13 elastically press against the first nut 20; Second, place the mounting base 10 on the side wall 2 located inside the box 100, so that the second mounting hole 133 of the second plate 132 is aligned with the fourth mounting hole 22 of the side wall 2, and fix the mounting base 10 to the side wall 2 inside the box 100 by the fastening assembly 3; Finally, pass the valve body 30 of the vent valve 1 located outside the box 100 through the third mounting hole 21, so that its connecting rod 301 is connected to the first nut 20, until the valve body 30 can no longer be rotated, indicating that the vent valve 1 has been installed. If the valve body 30 needs to be replaced, rotate the valve body 30 to separate its connecting rod 301 from the first nut 20, and a new valve body 30 can be installed.

[0064] In summary, this utility model embodiment provides a vent valve and a housing. The mounting base includes a first limiting part and a second limiting part that limit the movement of a first nut. The first and second limiting parts elastically press against the first nut. The free end of the first limiting part extends away from the base plate and tilts towards the center of the base plate, its tilting serving to secure the first nut placed therein. The second limiting part includes a first plate and a second plate. The free end of the first plate extends away from the base plate and is used to secure the first nut. The second plate connects to the free end of the first plate and extends outward from the base plate; this outward extension does not affect the first nut positioned in the mounting base. A second mounting hole is provided on the second plate. By using a fastening component acting on the second mounting hole of the second plate and a fourth mounting hole on the side wall, the mounting base can be securely installed onto the inner side of the housing's side wall. The valve body of the vent valve can be connected to the first nut by passing through the third mounting hole on the outer side wall of the box. This allows the vent valve to be replaced directly from the outside of the box, reducing the frequency of opening the box and ensuring the airtightness and waterproofness of the box. It also helps to save installation space inside the box.

[0065] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A vent valve, characterized in that, It includes a mounting base, a first nut, and a valve body, wherein a connecting rod that is screwed to the first nut is provided in the middle of the valve body; The mounting base includes: The base plate has a first mounting hole in the middle, and two opposite sides of the base plate are the first side and the third side. The second side and the fourth side are adjacent to the first side and the third side. The first side, the second side, the third side and the fourth side are connected end to end. A first limiting portion is provided on the first side and the third side, the free end of the first limiting portion extends away from the bottom plate and is inclined towards the middle of the bottom plate; A second limiting part is provided on the second side and the fourth side. The second limiting part includes a first plate and a second plate. The first plate is connected to the bottom plate. The free end of the first plate extends away from the bottom plate. The free end of the first plate is connected to the second plate. The second plate extends outward from the bottom plate. A second mounting hole is provided on the second plate. The first nut is disposed between the first limiting part and the second limiting part, and the connecting rod passes through the first mounting hole.

2. The vent valve according to claim 1, characterized in that, The base plate, the first limiting part, and the second limiting part are integrally formed, and the mounting base is made of a bendable material.

3. The vent valve according to claim 2, characterized in that, The first plate of the two second limiting portions is disposed between the two first limiting portions, and a gap is formed between the first plate of the two second limiting portions and the two first limiting portions.

4. The vent valve according to claim 3, characterized in that, The inclination angle α between the first plate of the second limiting part and the bottom plate is 75° to 90°.

5. The vent valve according to claim 1, characterized in that, The free end of the first limiting part is provided with a bent section.

6. The vent valve according to claim 5, characterized in that, The bent sections of the two first limiting portions are arranged facing away from each other.

7. A box, characterized in that, include: The sidewall has a third mounting hole and two fourth mounting holes. A vent valve, wherein the vent valve is the vent valve according to any one of claims 1-6, the mounting base is disposed on the inner side of the side wall, and the second plate abuts against the side wall, the valve body is disposed on the outer side of the side wall, and the connecting rod passes through the third mounting hole, the first nut, and the first mounting hole in sequence; A fastening assembly is provided through the fourth mounting hole and the second mounting hole to fix the mounting base onto the housing.

8. The housing according to claim 7, characterized in that, The fastening assembly includes a screw and a second nut connected to the screw. The screw is located on the outer side of the sidewall and passes through the fourth mounting hole and the second mounting hole. The second nut is located at the end of the second plate away from the sidewall.

9. The housing according to claim 7, characterized in that, The diameters of both the first mounting hole and the third mounting hole are smaller than the outer diameter of the first nut.

10. The housing according to claim 9, characterized in that, The third mounting hole includes at least one of a circular hole and a polygonal hole.

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