Box body and disc-mounted meter

Abstract

The embodiment of the utility model discloses a box body and a disc-mounted meter. The box body comprises a first shell and a second shell connected with the first shell in a buckled mode. The two opposite side faces of the first shell are each provided with a first elastic external expansion structure, the first elastic external expansion structures extend in the direction of the second shell, the elastic direction of the first elastic external expansion structures faces the outside of the box body, the tail ends of the first elastic external expansion structures are provided with first buckles facing the outside of the box body, and the second shell is provided with two first clamping grooves connected with the two first buckles in a buckled mode. Rigid plates which extend towards the direction of the second shell and comprise hollow parts are arranged on the two side faces, not provided with the first elastic external expansion structures, of the first shell, second elastic external expansion structures with the elastic direction facing the exterior of the box body are arranged in the hollow parts, and second buckles facing the exterior of the box body are arranged at the tail ends of the second elastic external expansion structures; the second shell is provided with two second clamping grooves which are connected with the two second buckles in a buckled mode. And more stable installation of the box body can be realized through the two different buckle types.

Description

Technical Field

[0001] The embodiments of this specification belong to the field of boxes, and specifically relate to a box. Background Art

[0002] Between the upper and lower shells of a box, screws, snap structures, adhesives, etc. are often used for fixation. The way of fixing with an adhesive is relatively sealed, but it is more sensitive to temperature. For a box with heat-generating devices inside, it is easy to automatically open due to the decrease in the viscosity of the adhesive caused by high temperature. And for a box fixed with an adhesive, if the internal devices need to be repaired and replaced, it is also more difficult to open the box again; Another common way to fix a box is to use screws. Screws are fixed stably and firmly, but tools are needed to tighten or loosen the screws for installation. The installation is rather troublesome, and thread stripping is likely to occur during the installation process. In addition, after long-term use, screws are likely to become loose due to vibration, or rust due to moisture and oxygen in the air, resulting in difficulty in disassembly in the later stage; Therefore, there is an urgent need for a box that is not only simple and firm to install, but also convenient to open again after long-term use. Utility Model Content

[0003] The embodiments of this specification provide a box that is not only simple and firm to install, but also convenient to open again after long-term use.

[0004] In a first aspect, the embodiments of this specification provide a box, including: a first shell and a second shell that is snap-connected to the first shell;

[0005] On two opposite sides of the first shell, there are both first elastic outward expansion structures that extend towards the second shell and whose elastic directions face the outside of the box. At the end of the first elastic outward expansion structure, there is a first snap facing the outside of the box. On the second shell, there are two first slots that are snap-connected to the two first snaps;

[0006] On the two side surfaces of the first shell where the first elastic outward expansion structure is not provided, there are rigid plates that extend towards the second shell and include hollow parts. Inside the hollow parts, there are second elastic outward expansion structures whose elastic directions face the outside of the box. At the end of the second elastic outward expansion structure, there is a second snap facing the outside of the box. On the second shell, there are two second slots that are snap-connected to the two second snaps.

[0007] As a preferred solution, the heights of the first snap and the second snap are staggeredly arranged.

[0008] As a preferred solution, inside the second shell, there is a first accommodation groove for accommodating the first elastic outward expansion structure after expansion; inside the second shell, there is also a second accommodation groove for accommodating the second elastic outward expansion structure after expansion.

[0009] In a second aspect, an embodiment of the present specification provides a panel-mounted meter, including the box body described in the first aspect of the embodiment, a display panel is provided on the outer top surface or the outer bottom surface of the box body, and a first PCB board connected to the display panel is provided inside the box body;

[0010] On one side of the box body close to the display panel, a first support member for supporting the first PCB board is provided. On one side of the box body close to the display panel, at least a pair of third elastic outward expansion structures respectively arranged on both sides inside the box body are also provided. A third buckle for clamping the first PCB board is provided at the end of the third elastic outward expansion structure.

[0011] As a preferred solution, at least a pair of mounting structures are oppositely arranged on the peripheral surface of the box body, and fixing members are mounted on the mounting structures;

[0012] An elastic rod is further provided at one end of the fixing member away from the display panel. A serrated portion is provided on the side of the elastic rod facing the box body, and an engaging portion meshing with the serrated portion is provided on the outer surface of the box body;

[0013] A fourth elastic outward expansion structure with an elastic direction facing the outside of the box body is further provided on the fixing member.

[0014] As a preferred solution, a holding portion protruding towards the outside of the box body is provided at the top of the elastic rod.

[0015] As a preferred solution, the mounting structure is a slot structure, and the slot structure is narrower at the top and wider at the bottom in the depth direction of the slot.

[0016] As a preferred solution, the first support member includes at least one support post. The support post includes a first column body and a second column body provided on the first column body and having a diameter smaller than that of the first column body. Insertion holes with the same number as the support posts and a diameter adapted to the diameter of the second column body are provided on the first PCB board.

[0017] As a preferred solution, a second PCB board connected to the first PCB board is further provided inside the box body;

[0018] On one side of the box body close to the display panel, a second support member for supporting the second PCB board is provided. On the surface of the box body opposite to the surface where the display panel is provided, a first abutting portion for abutting against the surface of the second PCB board is provided.

[0019] As a preferred solution, at least a pair of second abutting portions respectively abutting against the opposite two sides of the second PCB board are further provided on the surface of the box body opposite to the surface where the display panel is provided.

[0020] The beneficial effects brought by the technical solutions provided by some embodiments of the present specification at least include:

[0021] By providing two different types of snap structures on two opposite sides of the box body respectively, and through the cooperation of the two different types of snap structures, the box body can be clamped more firmly. Moreover, the second snap is arranged on a rigid plate with a hollow part, and the rigid plate can better fix and support the box body, thereby avoiding the shell deformation caused by the increase of the external environment temperature or the temperature rise of the components inside the box body, and further avoiding the loosening of the snap, making the installation structure of the whole box body more stable. In addition, the snap structure can be stably clamped by simply pressing directly, which is convenient for installation. Furthermore, the snap structure, especially the snap made of oxidation-resistant material, has relatively stable properties and is durable. Even if the components inside the box need to be maintained and replaced later, the box body installed with the snap structure is still convenient to open again. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this specification, the drawings required for the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this specification. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is an exploded structural schematic diagram of a box body provided by an embodiment of this specification

[0024] Figure 2 is an overall structural schematic diagram of a box body provided by an embodiment of this specification.

[0025] Figure 3 is a structural schematic diagram of the first housing.

[0026] Figure 4 is a structural schematic diagram of the second housing.

[0027] Figure 5 is a structural schematic diagram of the fixing member.

[0028] Figure 6 is a structural schematic diagram of the first support member.

[0029] In the figure: 1. First housing; 2. Second housing; 3. First elastic outward expansion structure; 4. First buckle; 5. First card slot; 6. Rigid plate; 7. Second elastic outward expansion structure; 8. Second buckle; 9. Second card slot; 10. First accommodation groove; 11. Second accommodation groove; 12. Display panel; 13. First PCB board; 14. First support member; 1401. First cylinder; 1402. Second cylinder; 15. Third elastic outward expansion structure; 16. Third buckle; 17. Fixing member; 18. Elastic rod; 19. Serrated portion; 20. Engaging portion; 21. Fourth elastic outward expansion structure; 22. Holding portion; 23. Slot structure; 24. Insertion hole; 25. Second PCB board; 26. Second support member; 27. First abutting portion; 28. Second abutting portion. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of this specification will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this specification.

[0031] The terms "first", "second", "third", etc. in the specification, claims and the above accompanying drawings of this specification are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0032] The following description provides examples and does not limit the scope, applicability or examples set forth in the claims. Changes can be made to the functions and arrangements of the described elements without departing from the scope of the content of this specification. Each example can appropriately omit, substitute or add various processes or components. For example, the described methods can be executed in a different order than the described order, and various steps can be added, omitted or combined. In addition, the features described in some examples can be combined into other examples.

[0033] Please refer to Figure 1 , Figure 1 which shows an exploded structural schematic diagram of a box body provided by an embodiment of this specification.

[0034] As Figures 1-4 shown, the system can at least include a first housing 1 and a second housing 2 that is snap-connected to the first housing 1;

[0035] On both opposite sides of the first housing 1, there are provided first elastic outward expansion structures 3 extending towards the second housing 2 with the elastic direction facing the outside of the box body. At the end of the first elastic outward expansion structure 3, there is a first buckle 4 facing the outside of the box body. On the second housing 2, there are two first card slots 5 snap-connected to the two first buckles 4.

[0036] On the two side surfaces of the first housing 1 where the first elastic outward expansion structure 3 is not provided, there are provided rigid plates 6 extending towards the second housing 2 and including hollow parts. Inside the hollow parts, there are second elastic outward expansion structures 7 with the elastic direction facing the outside of the box body. At the end of the second elastic outward expansion structure 7, there is a second buckle 8 facing the outside of the box body. On the second housing 2, there are two second card slots 9 snap-connected to the two second buckles 8.

[0037] It can be seen that the first housing 1 and the second housing 2 are snap-fitted through different types of buckles respectively provided on the opposite two side surfaces, that is, the first buckle 4 and the second buckle 8. On the one hand, the buckle structure is simple to install, and only needs to be pressed in place to complete the installation. On the other hand, through two different types of buckle forms, the installation between the first housing 1 and the second housing 2 is more stable. In addition, because the second buckle 8 is provided in the hollow part of the rigid plate 6, the rigid plate 6 also plays a certain supporting role for the second housing 2, which can well prevent the problem that the second housing 2 is sunken inward during use, resulting in the loosening and falling off of the buckle, making the box body more firm.

[0038] It can be understood that, in order to prevent the box body from loosening and falling off due to the unsteady buckle, the stability of the buckle can also be increased by increasing the width and thickness of the first buckle 4 and the second buckle 8.

[0039] It can be understood that if the box body is large and one side of the box body is long, in order to play a better reinforcement role, multiple groups of the same type or different types of buckle structures can also be provided on one side of the box body to make the installation of the box body more firm.

[0040] It can be understood that if the box body is quadrilateral, a set of first buckle 4 structures and second buckle 8 structures can be respectively provided on the opposite two surfaces. If the box body is polygon and the number of sides is even, multiple sets of first buckle 4 structures or second buckle 8 structures can be provided. If the box body is polygon and the number of sides is odd, the first buckle 4 structures and the second buckle 8 structures can also be provided at intervals, which can be determined according to the specific scenario requirements.

[0041] It can be understood that the first elastic outward expansion structure 3 and the second elastic outward expansion structure 7 can be elastic outward expansion plates or elastic outward expansion rods, etc.

[0042] Please refer to Figures 1-4 As shown, in an embodiment of the present specification, the heights of the first buckle 4 and the second buckle 8 are arranged in a staggered manner.

[0043] It can be understood that the first buckle 4 and the second buckle 8 are arranged at different heights. In this way, when the second housing 2 is pulled outwards under the action of an external force, the first card slot 5 and the first buckle 4, and the second card slot 9 and the second buckle 8 will abut against each other from two surfaces at different heights respectively. Because there are resistances from multiple cross-sections at different heights, the force required to open the box will be greater. Therefore, the first buckle 4 and the second buckle 8 at different heights are set to make the installation of the box more firm and not easily loosen.

[0044] Please refer to Figure 4 As shown, in an embodiment of the present specification, a first accommodation groove 10 for accommodating the first elastic outward expansion structure 3 after outward expansion is provided in the second housing 2; a second accommodation groove 11 for accommodating the second elastic outward expansion structure 7 after outward expansion is also provided in the second housing 2.

[0045] It can be understood that because the first accommodation groove 10 for accommodating the first elastic outward expansion structure 3 after outward expansion and the second accommodation groove 11 for accommodating the second elastic outward expansion structure 7 after outward expansion are provided on the second housing 2, the first elastic outward expansion structure 3 and the second elastic outward expansion structure 7 can extend into the side wall of the second housing 2 for fitting, so that the first buckle 4 at the bottom of the first elastic outward expansion structure 3 can penetrate deeper into the first card slot 5 on the side wall of the second housing 2, and the second buckle 8 at the bottom of the second elastic outward expansion structure 7 can penetrate deeper into the second card slot 9 on the side wall of the second housing 2. Therefore, the abutting area between the first buckle 4 and the first card slot 5, and between the second buckle 8 and the second card slot 9 will be larger, resulting in a more firm clamping of the box.

[0046] Please refer to Figure 1 or Figure 2 As shown, the present specification also provides a panel meter.

[0047] Please refer to Figure 1 or Figure 2 As shown, the panel meter at least includes the box described in the above embodiment. A display panel 12 is provided on the outer top surface or the outer bottom surface of the box, and a first PCB board 13 connected to the display panel 12 is provided in the box;

[0048] On one surface of the box close to the display panel 12, a first support member 14 for supporting the first PCB board 13 is provided. On one surface of the box close to the display panel 12, at least a pair of third elastic outward expansion structures 15 respectively arranged on both sides inside the box are also provided. A third buckle 16 for clamping the first PCB board 13 is provided at the end of the third elastic outward expansion structure 15.

[0049] It can be understood that one side of the first PCB board 13 inside the box body is supported by the first support member 14, and the other side is fixed by the third buckle 16. In this way, both sides of the first PCB board 13 are fixed by the first support member 14 and the third buckle 16 respectively to achieve the effect of stable installation.

[0050] Preferably, the top of the third buckle 16 can be an inclined surface, and the end far from the first PCB board 13 is higher than the end close to the first PCB board 13. In this way, when installing the first PCB board 13, the first PCB can be pressed down along the inclined surface of the top of the third buckle 16 from top to bottom until the third buckle 16 buckles the first PCB board 13. Such an inclined surface makes the installation of the first PCB board 13 more convenient. When the first PCB board 13 is installed in place, the third elastic outward expansion structure 15 also retracts from the outward expansion state and is located on both sides of the first PCB board 13. In this way, the third elastic outward expansion structure 15 also plays a role in limiting the first PCB board 13 left and right at the same time.

[0051] It can be understood that the third elastic outward expansion structure 15 can be an elastic outward expansion plate or an elastic outward expansion rod, etc.

[0052] Please refer to Figure 2 and Figure 5 As shown, in an embodiment of the present specification, at least a pair of mounting structures are oppositely arranged on the peripheral surfaces of the box body, and a fixing member 17 is mounted on the mounting structure;

[0053] An elastic rod 18 is further provided at one end of the fixing member 17 away from the display panel 12. A serrated portion 19 is provided on the side of the elastic rod 18 facing the box body, and an engaging portion 20 meshing with the serrated portion 19 is provided on the outer surface of the box body;

[0054] A fourth elastic outward expansion structure 21 with an elastic direction facing the outside of the box body is further provided on the fixing member 17.

[0055] It can be understood that the panel meter is usually installed on the surface of the cabinet door or a dedicated instrument panel. By opening a hole in the installation position that is adapted to the panel meter housing, the panel meter housing is placed in the opening, and the display panel 12 is exposed on the installation plane for viewing and operation. If the opening in the installation position is smaller than or equal to the cross-sectional size of the panel meter housing, it is impossible to place it, or the friction between the side wall of the opening and the outer surface of the panel meter housing is relatively large, making it difficult to place. Therefore, for convenient placement, the opening is usually slightly larger than the panel meter housing. However, this will cause the panel meter housing to shake left and right in the opening, and unstable installation will not only make it inconvenient to operate the operation panel but also affect the service life of the panel meter because the panel meter housing often collides with the side wall of the opening. Therefore, a fixing member 17 is installed on the panel meter housing. The fixing member 17 is connected to the housing of the panel meter in a limited position through an installation structure. One end of the fixing member 17 away from the display panel 12 is also provided with an elastic rod 18. A serrated portion 19 is provided on the side of the elastic rod 18 facing the housing. An engaging portion 20 that meshes with the serrated portion 19 is provided on the outer surface of the housing. The fixing between the fixing member 17 and the housing is achieved through the engagement of the serrated portion 19 and the engaging portion 20. Because a fourth elastic outward expansion structure 21 with an elastic direction facing the outside of the housing is provided on the fixing member 17, the fourth elastic outward expansion structure 21 will abut against the side wall of the opening to prevent the panel meter housing from shaking left and right.

[0056] It can be understood that the fixing member 17 is connected to the housing in a limited position through an installation structure. In addition, the fixing member 17 is also fixed in position with the housing through an engaging structure. The engaging structure is provided on the elastic rod 18 at one end of the fixing member 17. Because the elastic rod 18 has elasticity, the abutment between the serrated portion 19 and the engaging portion 20 can be eliminated by pushing the elastic rod 18 away from the engaging portion 20, and then the fixing member 17 and the housing can be separated.

[0057] It can be understood that the first elastic outward expansion structure 3 can be an elastic outward expansion plate or an elastic outward expansion rod, etc.

[0058] Please refer to Figure 2 and Figure 5 As shown, in an embodiment of the present specification, a holding portion 22 protruding outward from the housing is provided at the top of the elastic rod 18.

[0059] It can be understood that because it is necessary to push the elastic rod 18 away from the engaging portion 20 to eliminate the abutment between the serrated portion 19 and the engaging portion 20, and then the fixing member 17 and the housing can be separated. Therefore, to more conveniently push the elastic rod 18, a holding portion 22 protruding outward from the housing can be provided at the top of the elastic rod 18 to facilitate pushing the elastic rod 18 away from the engaging portion 20.

[0060] It can be understood that, in order to prevent the holding part 22 from slipping when pushed, the holding part 22 can be provided with an anti-slip structure, such as setting the surface of the holding part 22 as a frosted structure, or adding some bumps or textures, etc.

[0061] Please refer to Figure 2 and Figure 5 As shown, in an embodiment of the present specification, the installation structure is a slot structure, and the slot structure is wider at the bottom than at the top in the depth direction of the slot.

[0062] It can be understood that through the slot structure provided on the surface of the box body and the fixing member 17, the fixing member 17 is first slid into a position close to the display panel 12 of the box body through the slot structure, and then the serrated portion 19 provided on the elastic rod 18 is engaged with the engaging portion 20 provided on the box body to realize the connection between the fixing member 17 and the box body. In order to ensure that the fixing member 17 does not separate from the box body when the fixing member 17 is slid into the box body through the slot structure and has not yet been engaged, the slot is set to be wider at the bottom than at the top in the depth direction of the slot, so that once inserted into the slot structure, the two are not easily separated.

[0063] Please refer to Figure 3 and Figure 6 As shown, in an embodiment of the present specification, the first support member 14 includes at least one support column, the support column includes a first column body 1401 and a second column body 1402 provided on the first column body 1401 and having a diameter smaller than that of the first column body 1401, and the first PCB board 13 is provided with insertion holes 24 having the same number as the support columns and a diameter adapted to the diameter of the second column body 1402.

[0064] It can be understood that since the first PCB board 13 is provided with insertion holes 24 having the same number as the support columns and a diameter adapted to the diameter of the second column body 1402, the second column body 1402 can be inserted into the first PCB board 13 through the insertion holes 24. Also, since the insertion holes 24 only match the second column body 1402, that is, the diameter of the insertion holes 24 and the diameter of the second column body 1402 are both smaller than the diameter of the first column body 1401, the first support member 14 supports the first PCB board 13 through the first column body 1401 and limits the first PCB board 13 through the second column body 1402, so that it is easier to align the relative positions between the first PCB board 13 and the box body during installation, making the installation more convenient.

[0065] Please refer to Figure 1 , Figure 3 or Figure 4 As shown, in an embodiment of the present specification, a second PCB board 25 connected to the first PCB board 13 is further provided in the box body;

[0066] On one side of the box body close to the display panel 12, there is a second support member 26 for supporting the second PCB board 25, and on the surface of the box body opposite to the surface where the display panel 12 is provided, there is a first abutting portion 27 for abutting against the surface of the second PCB board 25.

[0067] It can be understood that the two opposite surfaces of the second PCB board 25 located inside the box body are respectively limited by the second support member 26 and the first abutting portion 27, so that the second PCB board 25 is stably installed between the second support member 26 and the first abutting portion 27.

[0068] Please refer to Figure 1 、 Figure 3 or Figure 4 As shown in the figure, in one embodiment of this specification, on the surface of the box body opposite to the surface where the display panel 12 is provided, there are also at least a pair of second abutting portions 28 respectively abutting against the opposite two side edges of the second PCB board 25.

[0069] It can be understood that if the box body vibrates, the up-and-down limitation of the second support member 26 and the first abutting portion 27 limits the possibility of the second PCB board 25 shaking up and down, but the second PCB board 25 may still shake left and right, resulting in a collision between the second PCB board 25 and the inner side wall of the box body. As is well known, the circuits on the PCB board are usually composed of fine electronic circuits, so the PCB is a relatively precise component, and the collision caused by the vibration of the box body is more likely to cause circuit damage. Therefore, it is particularly important to limit the left-and-right shaking of the second PCB board 25. Therefore, there are at least a pair of second abutting portions 28 respectively abutting against the opposite two side edges of the second PCB board 25 in the box body to prevent the second PCB board 25 from colliding with the box body.

[0070] It can be understood that the second abutting portion 28 can be an abutting rod, an abutting plate or an abutting column, etc. For better abutting effect, preferably, a groove structure with the same number as the second abutting portion 28 can be provided on the second PCB board 25 to match the second abutting portion 28.

[0071] The above-described embodiments are merely described in the preferred embodiment manner of this specification, and do not limit the scope of this specification. Without departing from the design spirit of this specification, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of this specification shall fall within the protection scope determined by the claims of this specification.

Claims

1. A box, characterized in that: It includes a first shell and a second shell connected with the first shell by snapping; Two opposite sides of the first shell are provided with first elastic outward expansion structures extending toward the second shell and with elastic directions toward the outside of the box, the ends of the first elastic outward expansion structures are provided with first buckles facing the outside of the box, and the second shell is provided with two first slots buckled to the two first buckles; A rigid plate extending toward the second shell and including a hollow portion is provided on both side surfaces of the first shell where the first elastic outward expansion structure is not provided, a second elastic outward expansion structure with an elastic direction toward the outside of the box is provided in the hollow portion, a second buckle facing the outside of the box is provided at the end of the second elastic outward expansion structure, and two second slots connected to the two second buckles are provided on the second shell.

2. A box according to claim 1, characterized in that: The first buckle and the second buckle are arranged with a height offset.

3. A box according to claim 1, characterized in that: The second shell is provided with a first accommodating groove for accommodating the first elastic outward-expanding structure after outward expansion; the second shell is also provided with a second accommodating groove for accommodating the second elastic outward-expanding structure after outward expansion.

4. A disk-mounted meter, characterized in that: The box comprises the box as claimed in any one of claims 1 to 3, wherein a display panel is provided on the outer top surface or the outer bottom surface of the box, and a first PCB board connected to the display panel is provided in the box; A first supporting component for supporting the first PCB board is provided on one surface of the box body close to the display panel, and at least one pair of third elastic outward expansion structures are also provided on one surface of the box body close to the display panel, respectively provided on both sides of the box body, and a third buckle for engaging the first PCB board is provided at the end of the third elastic outward expansion structure.

5. A disk-mounted meter according to claim 4, characterized in that: At least one pair of mounting structures are arranged on the surfaces around the box body, and fixing parts are installed on the mounting structures; An elastic rod is further provided at one end of the fixing member away from the display panel, a sawtooth portion is provided on the side of the elastic rod facing the box body, and an engaging portion engaged with the sawtooth portion is provided on the outer surface of the box body; The fixing member is also provided with a fourth elastic outward expansion structure with its elastic direction facing the outside of the box body.

6. A disk-mounted meter according to claim 5, characterized in that: The top of the elastic rod is provided with a holding portion protruding toward the outside of the box.

7. A disk-mounted meter according to claim 5, characterized in that: The installation structure is a slot structure, and the slot structure is narrow at the top and wide at the bottom in the depth direction of the slot.

8. A disk-mounted meter according to claim 4, characterized in that: The first supporting component includes at least one supporting column, which includes a first column and a second column arranged on the first column and having a diameter smaller than the diameter of the first column. The first PCB board is provided with insertion holes whose number is consistent with the number of supporting columns and whose diameter is adapted to the diameter of the second column.

9. A disk-mounted meter according to claim 4, characterized in that: The box body is also provided with a second PCB board connected to the first PCB board; A second supporting component for supporting the second PCB is disposed on a surface of the box body close to the display panel, and a first abutting portion for abutting against the surface of the second PCB is disposed on a surface of the box body opposite to the surface where the display panel is disposed.

10. A disk-mounted meter according to claim 9, characterized in that: At least one pair of second abutting portions are also provided on a surface of the box body opposite to the surface on which the display panel is arranged, respectively abutting against two opposite side edges of the second PCB board.

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