Hanging lug, equipment mounting device and cabinet

Abstract

The utility model relates to a hanging lug, an equipment installation device and a cabinet. The hanging lug comprises a plate body, an elastic piece, a U-shaped plate and a protruding block. The plate body is provided with a first end face and a second end face which are oppositely arranged. The plate body is also provided with a first end part and a second end part which are positioned at opposite positions; the U-shaped plate is fixedly connected to the first end of the plate body and located on the first end face. The elastic piece is mounted at the opening of the U-shaped plate; the protruding block is fixedly connected to the second end of the plate body and located on the first end face. A guide groove is formed in the end, close to the U-shaped plate, of the first end face. According to the hanging lug provided by the utility model, the guide groove is formed in the plate body and can guide the edge of the guide rail to slide to the opening of the U-shaped plate, so that the friction force between the edge of the guide rail and the plate body is reduced, and the plate body can be more conveniently and quickly mounted on the guide rail.

Description

Technical Field

[0001] The utility model relates to the field of equipment installation, and in particular to a hanging ear, an equipment installation device and a cabinet. Background Art

[0002] Currently, 19U vertical cabinets are widely used in industries such as new energy, wind power storage, and smart transportation. 19U vertical cabinets are equipped with German Industrial Standard (Deutsche Industrie Normen, DIN) rails for installing industrial electrical components; using rails is a way to install industrial electrical components. DIN rails are German industrial standard rails. Electrical components that support this standard can be easily clipped onto the rails without the need for screws.

[0003] Due to the large variety of products inside the 19U vertical cabinet, the installation position is not fixed and is relatively compact. In the security and communication industry, individual products often need to be placed in the top corners or bottom of the wall. During installation, there may be limited upper space or lower space, and there are many interferences.

[0004] Therefore, the current industry uses DIN rails to either use forward-facing or reverse-facing mounting ears for electrical components. However, in the long-term application practice, the inventors found that although the mounting ears of the prior art can clip electrical components onto the rails, the mounting ears are inconvenient to install onto or remove from the rails, are easily blocked, and cannot further improve the maintenance efficiency of electrical components. Utility Model Content

[0005] The utility model aims to provide a hanging ear, an equipment installation device and a cabinet, which can further improve the maintenance efficiency of electrical components.

[0006] The embodiment of the utility model is achieved as follows:

[0007] In the first aspect, the utility model provides a hanging ear, comprising a plate body, an elastic member, a U-shaped plate and a protruding block; the plate body has a first end face and a second end face arranged opposite to each other, and the plate body also has a first end portion and a second end portion in relative positions; the U-shaped plate is fixedly connected to the first end portion, and the U-shaped plate is located on the first end face; the elastic member is arranged at the opening of the U-shaped plate; the protruding block is fixedly connected to the second end portion of the plate body, and the protruding block is located on the first end face; a guide groove is provided on the first end face; the opening of the U-shaped plate is opened along a first direction, and the first direction is the direction in which the U-shaped plate points to the protruding block.

[0008] In one embodiment, the elastic member has a fixing portion and a supporting portion, the elastic member is fixedly installed in the opening of the U-shaped plate through the fixing portion, and the supporting portion extends out of the opening of the U-shaped plate; the guide groove is opened on the first end face, and the guide groove is close to the supporting portion and away from the fixing portion.

[0009] In one embodiment, the plate body is provided with a first through hole and a second through hole, and the first through hole and the second through hole are distributed along the first direction.

[0010] In one embodiment, the first through hole is a threaded hole or a countersunk hole; and / or; the second through hole is a threaded hole or a countersunk hole.

[0011] In one embodiment, a chamfer is provided at a connection between the protruding block and the plate body.

[0012] In one embodiment, the chamfer is inclined at a first preset angle α relative to the plane of the first end surface.

[0013] In one embodiment, the elastic member is a special-shaped spring, and the elastic member is inclined at a second preset angle β relative to the plane of the first end surface.

[0014] In one embodiment, the protruding block includes a wedge-shaped end and a guide end, and the wedge-shaped end and the guide end are sequentially arranged along the first direction; a thickness D of the guide end is 0.1 mm to 0.5 mm.

[0015] In one embodiment, the thickness D of the plate is 1 mm to 3 mm.

[0016] In one embodiment, the U-shaped plate includes a fixed end and a mating end; the U-shaped plate is fixedly connected to the plate body via the fixed end; a groove is formed on the mating end, and two edges outside the groove are of equal height.

[0017] In the second aspect, the utility model also provides an equipment installation device, including a guide rail and a hanging ear as described in any one of the above embodiments; the guide rail has a first installation side and a second installation side arranged opposite to each other; the hanging ear can be installed on the first installation side or the second installation side by means of an elastic member, and at least one hanging ear is provided.

[0018] In a third aspect, the utility model further provides a cabinet, comprising a cabinet body and an equipment installation device as described in the above embodiment, wherein the equipment installation device is detachably installed in the cabinet body through the guide rail.

[0019] The beneficial effect of the hanging ear provided in the embodiment of the utility model is that when the plate body is installed on the guide rail, the edge of the guide rail can abut against the plate body, so that the friction between the edge of the guide rail and the plate body is relatively large, so that the plate body needs to overcome the large friction force before it can be installed on the guide rail. Compared with the prior art, the hanging ear provided in the embodiment of the utility model is provided with a guide groove on the plate body, and the guide groove can guide the edge of the guide rail to slide to the opening of the U-shaped plate, thereby reducing the friction between the edge of the guide rail and the plate body, so that the plate body can be installed on the guide rail more conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of one embodiment of a hanging ear of the utility model from one perspective;

[0022] Figure 2 It is a structural schematic diagram of one embodiment of a hanging ear of the utility model from two viewing angles;

[0023] Figure 3 It is a structural schematic diagram of three perspectives of one embodiment of an equipment installation device of the utility model;

[0024] Figure 4 It is a structural schematic diagram including electrical components from three perspectives of one embodiment of an equipment installation device of the utility model;

[0025] Figure 5 It is a structural schematic diagram including electrical components from four perspectives of one embodiment of an equipment installation device of the utility model;

[0026] Figure 6 It is a structural schematic diagram including electrical components from three perspectives of another embodiment of an equipment installation device of the utility model;

[0027] Figure 7 It is a structural schematic diagram including electrical components from three perspectives of another embodiment of an equipment installation device of the utility model;

[0028] Figure 8 This is a five-view structural schematic diagram of one embodiment of a cabinet of the utility model;

[0029] Fig. 9The present invention is a schematic structural diagram of another embodiment of an elastic member for an ear hook according to one perspective.

[0030] icon:

[0031] 1000-mounting ear;

[0032] 100-plate body; 110-first end face; 112-guide groove; 120-second end face; 130-first through hole; 140-second through hole; 150-first end; 160-second end; 200-U-shaped plate; 210-fixed end; 220-matching end; 230-groove; 300-elastic member; 310-fixed portion; 320-support portion; 400-protruding block; 410-wedge-shaped end; 420-guide end; 500-guide angle;

[0033] 2000-equipment installation device; 2100-guide rail; 2110-first installation side; 2120-second installation side;

[0034] 3000-cabinet; 3100-cabinet; 3200-electrical components. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The embodiment of the utility model provides a hanging ear 1000, such as Figure 1 to Figure 2 As shown, the hanging ear 1000 includes a plate body 100, a U-shaped plate 200, an elastic member 300 and a protruding block 400. Figure 3 As shown, the mounting ear 1000 is used to be installed on the guide rail 2100. Figure 4 As shown, the hanging ear 1000 is also provided with an electrical component 3200 , and the electrical component 3200 is connected to the guide rail 2100 through the hanging ear 1000 .

[0042] like Figure 2 As shown, the plate body 100 has a first end surface 110 and a second end surface 120 which are arranged opposite to each other, and the first end surface 110 and the second end surface 120 are two opposite planes. The plate body 100 also has a first end 150 and a second end 160 which are located at opposite positions.

[0043] The U-shaped plate 200 is fixedly connected to the first end portion 150 of the plate body 100 , and the U-shaped plate 200 is located on the first end surface 110 ; the opening of the U-shaped plate 200 faces the protruding block 400 .

[0044] The elastic member 300 is disposed at the opening of the U-shaped plate 200. For example, the elastic member 300 has a fixing portion 310 and a supporting portion 320 that are fixed to each other. The fixing portion 310 is fixedly installed in the opening of the U-shaped plate 200. The supporting portion 320 of the elastic member 300 extends out of the opening of the U-shaped plate 200. The supporting portion 320 of the elastic member 300 can rebound relative to the fixing portion 310. For example, Figure 1 As shown, a depression point is provided on the U-shaped plate 200, so that the inner walls at the opening of the U-shaped plate 200 are pressed against each other, so that the fixing portion 310 provided in the opening of the U-shaped plate 200 is fixed at the opening. Exemplarily, a rivet is provided at the depression point, and the U-shaped plate 200 fixes the elastic member 300 at the opening of the U-shaped plate 200 through the rivet. In another embodiment, a pin is provided at the depression point, and the elastic member 300 is fixedly installed at the opening of the U-shaped plate 200 through the pin.

[0045] The protruding block 400 is fixed to the second end 160 of the plate 100 and is located on the first end surface 110. One end of the plate 100 is clamped on the guide rail 2100 through the U-shaped plate 200 and the elastic member 300, and the other end of the plate 100 is clamped on the other end of the guide rail 2100 through the protruding block 400.

[0046] A guide groove 112 is provided on one end of the first end surface 110 close to the U-shaped plate 200. In the prior art, when the plate body 100 is installed on the guide rail 2100, the edge of the guide rail 2100 abuts against the plate body 100, which will make the friction between the edge of the guide rail 2100 and the plate body 100 larger. Compared with the prior art, the hanging ear 1000 in this embodiment is provided with a guide groove 112 on the plate body 100. The guide groove 112 is located at the abutment between the plate body 100 and the edge of the guide rail 2100. The guide groove 112 can guide the edge of the guide rail 2100 to slide to the opening of the U-shaped plate 200, thereby reducing the friction between the edge of the guide rail 2100 and the plate body 100, so that the plate body 100 can be more conveniently installed on the guide rail 2100.

[0047] The opening of the U-shaped plate 200 is opened along a first direction, and the first direction is the direction from the U-shaped plate 200 to the protruding block 400 , that is, the first direction is the direction from the first end 150 to the second end 160 .

[0048] like Figure 2 As shown, in one embodiment, the guide groove 112 is opened on the first end surface 110, and the guide groove 112 is close to the supporting portion 320 of the elastic member 300 and away from the fixing portion 310 of the elastic member 300. The guide groove 112 is opened here, so that when the guide rail 2100 initially abuts against the first end surface 110 of the plate body 100, the guide rail 2100 can be guided by the guide groove 112 to slide to the opening of the U-shaped plate 200.

[0049] like Figure 1 As shown, in one embodiment, the plate body 100 is provided with a first through hole 130 and a second through hole 140, and the first through hole 130 and the second through hole 140 are distributed along a first direction. Exemplarily, the first through hole 130 and the second through hole 140 are distributed along a first straight line, and the first straight line is parallel to the first direction and passes through the indentation point. The electrical component 3200 is installed at the first through hole 130 and the second through hole 140 by bolts.

[0050] like Figure 1 As shown, in one embodiment, the first through hole 130 is a countersunk hole; the second through hole 140 is a countersunk hole. In another embodiment, the first through hole 130 is a threaded hole, and the second through hole 140 is a threaded hole. In another embodiment, the first through hole 130 is a threaded hole, and the second through hole 140 is a countersunk hole.

[0051] like Figure 2 As shown, in one embodiment, a chamfer 500 is provided at the connection between the protruding block 400 and the plate body 100, and the chamfer 500 is close to the first end face 110 and away from the second end face 120. The chamfer 500 can enable the hanging ear 1000 to better engage the guide rail 2100, thereby improving reliability.

[0052] like Figure 2 As shown, in one embodiment, the chamfer 500 is inclined at a first preset angle α relative to the plane of the first end face 110. Setting the first preset angle α can make the edge of the guide rail 2100 fit more closely with the chamfer 500, thereby improving installation reliability. Exemplarily, the first preset angle α is in the range of 30° to 65°. Exemplarily, in one embodiment, the first preset angle α=30°. Exemplarily, in one embodiment, the first preset angle α=40°. Exemplarily, in one embodiment, the first preset angle α=45°. Exemplarily, in one embodiment, the first preset angle α=65°.

[0053] like Figure 3 As shown, in one embodiment, the elastic member 300 is a special-shaped spring, and the elastic member 300 is inclined at a second preset angle β relative to the plane of the first end face 110. Exemplarily, the second preset angle β is in the range of 0°-10°. Exemplarily, in one embodiment, the second preset angle β=1°. Exemplarily, in one embodiment, the second preset angle β=2°. Exemplarily, in one embodiment, the second preset angle β=5°. Exemplarily, in one embodiment, the second preset angle β=10°. The elastic member 300 is tilted relative to the first end face 110, which can make the elastic member 300 abut against the guide rail 2100 more closely, thereby improving reliability.

[0054] Exemplarily, the elastic member 300 is made of an elastic metal material, such as spring steel. Figure 1 As shown, the elastic member 300 is an M-shaped structure, wherein the middle position of the elastic member 300 is an arc shape, that is, the fixing portion 310 of the elastic member 300 is an arc shape, and the arc-shaped structure of the elastic member 300 bypasses the concave point and extends out of the opening of the U-shaped plate 200. In one embodiment, as Fig. 9 As shown, the elastic member 300 is a V-shaped structure; of course, the elastic member 300 may also be other shapes, which will not be described here one by one.

[0055] like Figure 3 As shown, in one embodiment, the protruding block 400 includes a wedge-shaped end 410 and a guide end 420, and the wedge-shaped end 410 and the guide end 420 are sequentially arranged along the first direction; illustratively, the thickness D1 of the guide end 420 is 0.1 mm to 0.5 mm. Compared with the prior art, the lug 1000 provided in the embodiment of the utility model is provided with a guide end 420 with a smaller width, which can reduce the contact area of ​​the guide end 420 with other equipment, reduce friction, and facilitate installation. Compared with the prior art, the lug 1000 provided in the embodiment of the utility model can reduce the interference and friction between the protruding block 400 and other equipment, and improve the installation efficiency. The wedge-shaped end 410, through its own wedge-shaped structure, enables the plate body 100 to better engage with the guide rail 2100, thereby improving reliability.

[0056] like Figure 3 As shown, in one embodiment, the thickness D2 of the plate body 100 is 1 mm to 3 mm. Exemplarily, the thickness D2 of the plate body 100 is 1.5 mm. Exemplarily, in one embodiment, the thickness D2 of the plate body 100 is 1 mm. Exemplarily, in one embodiment, the thickness D2 of the plate body 100 is 3 mm. Compared with the prior art, the hanging ear 1000 provided in the embodiment of the utility model increases the thickness of the plate body 100, improves the strength of the plate body 100, reduces the deformation of the plate body 100, can prevent the plate body 100 from excessive deformation, and improves the installation reliability of the electrical components 3200.

[0057] like Figure 2 As shown, in one embodiment, the U-shaped plate 200 includes a fixed end portion 210 and a mating end portion 220; the U-shaped plate 200 is fixedly connected to the plate body 100 via the fixed end portion 210, as shown in FIG. Figure 3 As shown, the thickness of the fixed end portion 210 is equal to the thickness of the plate body 100. Figure 2 As shown, a groove 230 is provided on the mating end 220, and the two edges outside the groove 230 are of equal height. Compared with the prior art, the thickness of the edge of the groove 230 is reduced, which facilitates the removal of the hanging ear 1000 from the guide rail 2100 and the maintenance of the electrical components 3200.

[0058] For example, Figure 3 As shown, the connection between the fixed end 210 and the plate body 100 is a step-type structure, so that the plane of the fixed end 210 and the first end surface 110 of the plate body 100 are not in the same plane, so that the elastic member 300 and the first end surface 110 of the plate body 100 are spaced apart, and the space between the elastic member 300 and the first end surface 110 can accommodate the guide rail 2100.

[0059] For example, Figure 2 As shown, the connection between the fixed end 210 and the mating end 220 is an arc plate structure, which enables the fixed end 210 and the mating end 220 to be spaced apart. The interval between the fixed end 210 and the mating end 220 is the opening of the U-shaped plate 200, and the opening faces the raised block 400.

[0060] An embodiment of the utility model further provides an equipment installation device 2000, comprising a guide rail 2100 and a hanging ear 1000 of any one of the above embodiments.

[0061] like Figure 6 As shown, the guide rail 2100 has a first mounting side 2110 and a second mounting side 2120 that are oppositely disposed. Exemplarily, the guide rail 2100 is a DIN guide rail 2100 .

[0062] The hanging ear 1000 can be mounted on the first mounting side 2110 or the second mounting side 2120 by means of the elastic member 300. Figure 8 As shown, at least one hanging ear 1000 is provided on the guide rail 2100. For example, one hanging ear 1000 is provided on the guide rail 2100; in another embodiment, two hanging ears 1000 are provided on the guide rail 2100; in another embodiment, three hanging ears 1000 are provided on the guide rail 2100.

[0063] For example, Figure 4 and Figure 5 As shown, the electrical component 3200 is normally installed on the guide rail 2100 through the hanging ear 1000 without interference from other equipment or objects.

[0064] For example, Figure 6 As shown, the electrical component 3200 is relatively Figure 6 When there is an interfering device or object above the orientation, the electrical component 3200 is installed on the guide rail 2100 through the U-shaped plate 200 and the elastic member 300 of the hanging ear 1000, and the protruding block 400 is not in contact with the guide rail 2100.

[0065] For example, Figure 7 As shown, the electrical component 3200 is relatively Figure 7When there is an interfering device or object below in the orientation, the electrical component 3200 is installed on the guide rail 2100 through the U-shaped plate 200 and the elastic member 300 of the hanging ear 1000, and the protruding block 400 is not in contact with the guide rail 2100.

[0066] like Figure 8 As shown, an embodiment of the utility model further provides a cabinet 3000, comprising a cabinet body 3100 and a device installation device 2000 as in any of the above embodiments, wherein the device installation device 2000 is detachably installed in the cabinet body 3100 through a guide rail 2100. Exemplarily, the cabinet body 3100 is a 19U vertical cabinet 3000.

[0067] Exemplarily, a cabinet door and supporting legs are provided on the cabinet body 3100. Exemplarily, a plurality of equipment installation devices 2000 are provided in the cabinet 3000, and exemplary, the plurality of equipment installation devices 2000 are sequentially distributed from bottom to top; in another embodiment, the plurality of equipment installation devices 2000 are sequentially arranged along a horizontal straight line.

[0068] In one embodiment, a ventilation window is provided on the cabinet 3100, and the ventilation window is provided at the upper end of the cabinet 3100. In another embodiment, the ventilation window is provided at the lower end of the cabinet 3100. In one embodiment, ventilation windows are provided at both the upper end and the lower end of the cabinet 3100.

[0069] In one embodiment, a ventilation device is provided in the cabinet 3100, and the ventilation device is provided at the ventilation window. In another embodiment, the ventilation device is provided at the electrical component 3200. In one embodiment, ventilation devices are provided at both the electrical component 3200 and the ventilation window. The ventilation device includes at least one of the following: a blower, a fan, an air pump, etc.

[0070] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hanging ear, characterized in that: include: A plate body (100), the plate body (100) having a first end surface (110) and a second end surface (120) arranged opposite to each other, and the plate body (100) also having a first end portion (150) and a second end portion (160) at opposite positions; A U-shaped plate (200), the U-shaped plate (200) being fixedly connected to the first end portion (150), and the U-shaped plate (200) being located on the first end surface (110); an elastic member (300), the elastic member (300) being arranged at the opening of the U-shaped plate (200); A protruding block (400), the protruding block (400) being fixedly connected to the second end portion (160), and the protruding block (400) being located on the first end surface (110); The first end surface (110) is provided with a guide groove (112); The opening of the U-shaped plate (200) is opened along a first direction, and the first direction is the direction in which the U-shaped plate (200) points toward the protruding block (400).

2. The hanging ear according to claim 1, characterized in that: The elastic member (300) comprises a fixing portion (310) and a supporting portion (320), the elastic member (300) being fixedly installed in the opening of the U-shaped plate (200) through the fixing portion (310), and the supporting portion (320) extending out of the opening of the U-shaped plate (200); The guide groove (112) is formed on the first end surface (110), and the guide groove (112) is close to the supporting portion (320) and away from the fixing portion (310).

3. The hanging ear according to claim 1, characterized in that: The plate body (100) is provided with a first through hole (130) and a second through hole (140), and the first through hole (130) and the second through hole (140) are distributed along the first direction.

4. The hanging ear according to claim 3, characterized in that: The first through hole (130) is a threaded hole or a countersunk hole; And / or; the second through hole (140) is a threaded hole or a countersunk hole.

5. The hanging ear according to claim 1, characterized in that: A chamfer (500) is provided at the connection between the protruding block (400) and the plate body (100).

6. The hanging ear according to claim 5, characterized in that: The chamfer (500) is inclined at a first preset angle α relative to the plane of the first end surface (110).

7. The hanging ear according to claim 1, characterized in that: The elastic member (300) is a special-shaped spring, and the elastic member (300) is inclined at a second preset angle β relative to the plane of the first end surface (110).

8. The hanging ear according to claim 1, characterized in that: The protruding block (400) comprises a wedge-shaped end portion (410) and a guide end portion (420), and the wedge-shaped end portion (410) and the guide end portion (420) are sequentially arranged along the first direction; The thickness D1 of the guide end portion (420) is 0.1 mm to 0.5 mm.

9. The hanging ear according to claim 1, characterized in that: The thickness D2 of the plate body (100) is 1 mm to 3 mm.

10. The hanging ear according to claim 1, characterized in that: The U-shaped plate (200) comprises a fixed end (210) and a matching end (220); the U-shaped plate (200) is fixedly connected to the plate body (100) via the fixed end (210); a groove (230) is provided on the matching end (220), and two edges outside the groove (230) are of equal height.

11. An equipment installation device, characterized in that: include: A guide rail (2100), wherein the guide rail (2100) has a first mounting side edge (2110) and a second mounting side edge (2120) that are arranged opposite to each other; According to the hanging ear (1000) as described in any one of claims 1 to 10, the hanging ear (1000) can be mounted on the first mounting side (2110) or the second mounting side (2120) by snap-fitting the elastic member (300), and at least one hanging ear (1000) is provided.

12. A cabinet, characterized in that: include: Cabinet (3100); According to the equipment installation device (2000) of claim 11, the equipment installation device (2000) is detachably installed in the cabinet (3100) via the guide rail (2100).

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