CN220819187U - Folding balance fan housing and electronic balance comprising same - Google Patents

Abstract

The utility model provides a folding balance fan housing and an electronic balance comprising the same, wherein the folding balance fan housing comprises a fan housing upper cover, a plurality of fan housing upright posts and a fan housing bottom shell, one end parts of the fan housing upright posts are correspondingly connected with one end parts of the fan housing upper cover through at least one first connecting piece, when the first connecting piece is fastened, the fan housing upright posts and the fan housing upper cover are mutually fixed, and when the first connecting piece is released, the fan housing upright posts and the fan housing upper cover can mutually rotate and fold; the other end of the fan housing upright post is correspondingly connected with one end of the fan housing bottom shell through at least one second connecting piece, when the second connecting piece is fastened, the fan housing upright post and the fan housing bottom shell are mutually fixed, and when the second connecting piece is loosened, the fan housing upright post and the fan housing bottom shell can mutually rotate and fold. The utility model can cancel the form of integral package of the original balance fan housing, thereby solving the problem of large occupied space of the existing fan housing package. The packaging and transporting cost is reduced, and the cost of the product is further reduced.

Description

Folding balance fan housing and electronic balance comprising same

Technical Field

The utility model relates to the field of electronic balances, in particular to a folding balance fan housing and an electronic balance comprising the same.

Background

In the field of electronic balances, a balance cover is an indispensable part. In general, the electronic balance with high precision is easily affected by external conditions, such as air flow, natural wind, external vibration, etc., during the use process, so that the weighing of the electronic balance can be fluctuated. The effect of the balance fan housing is to effectively improve the influence of external factors, so that weighing data are more accurate.

In the prior art, the fan housing part of the electronic balance is generally integrally placed in a box during packaging, so that the balance fan housing can be safely and smoothly transported to customers.

The transportation mode of the whole package of the existing balance fan housing can occupy more package space, and meanwhile, the transportation is inconvenient due to large volume.

In view of the above, the present inventors have devised a foldable balance fan housing and an electronic balance including the same, so as to overcome the above-mentioned problems.

Disclosure of utility model

The utility model aims to overcome the defects that in the prior art, the whole package and transportation of a balance fan cover occupy more package space and cause inconvenient transportation and the like, and provides a folding balance fan cover and an electronic balance comprising the folding balance fan cover.

The utility model solves the technical problems by the following technical proposal:

The foldable balance fan cover is characterized by comprising a fan cover upper cover, a plurality of fan cover stand columns and a fan cover bottom shell, wherein one end parts of the fan cover stand columns are correspondingly connected with one end parts of the fan cover upper cover through at least one first connecting piece;

The other end of the fan housing upright post is correspondingly connected with one end of the fan housing bottom shell through at least one second connecting piece, when the second connecting piece is fastened, the fan housing upright post and the fan housing bottom shell are mutually fixed, and when the second connecting piece is loosened, the fan housing upright post and the fan housing bottom shell can be mutually rotated and folded.

According to one embodiment of the utility model, a first rotating connecting part is arranged at one end part of the fan housing upright post, a second rotating connecting part is arranged at one end part of the fan housing upper cover, and the first rotating connecting part is correspondingly connected with the second rotating connecting part;

The fan cover is characterized in that a third rotating connecting part is arranged at the other end part of the fan cover upright post, a fourth rotating connecting part is arranged at one end part of the fan cover bottom shell, and the third rotating connecting part and the fourth rotating connecting part are correspondingly connected.

According to one embodiment of the utility model, the first rotating connecting part is a rotating groove, the second rotating connecting part is a rotating boss, the two side walls of the rotating groove are respectively provided with a first positioning hole, the rotating boss is provided with a second positioning hole, the first positioning holes are in one-to-one correspondence with the second positioning holes, and the first positioning holes are connected through the first connecting piece.

According to one embodiment of the utility model, the rotating groove is formed in the top of the fan housing upright post, the rotating boss vertically extends downwards along the bottom end of the fan housing upper cover, and the rotating boss is inserted into the rotating groove.

According to one embodiment of the utility model, the first rotating connecting part is a rotating boss, the second rotating connecting part is a rotating groove, the two side walls of the rotating groove are respectively provided with a first positioning hole, the rotating boss is provided with a second positioning hole, the first positioning holes are in one-to-one correspondence with the second positioning holes, and the first positioning holes are connected through the first connecting piece.

According to one embodiment of the utility model, the rotating boss is arranged at the top of the fan housing upright post, the rotating groove is arranged on the bottom end face of the fan housing upper cover, and the rotating boss is inserted in the rotating groove.

According to one embodiment of the utility model, the third rotating connecting part is a rotating groove, the fourth rotating connecting part is a rotating boss, the two side walls of the rotating groove are respectively provided with a third positioning hole, the rotating boss is provided with a fourth positioning hole, the third positioning holes are in one-to-one correspondence with the fourth positioning holes, and the third positioning holes are connected through the second connecting piece.

According to one embodiment of the utility model, the rotating groove is formed in the bottom of the fan housing upright post, the rotating boss extends vertically upwards along the upper end face of the fan housing bottom shell, and the rotating boss is inserted into the rotating groove.

According to one embodiment of the utility model, the third rotating connecting part is a rotating boss, the fourth rotating connecting part is a rotating groove, the two side walls of the rotating groove are respectively provided with a third positioning hole, the rotating boss is provided with a fourth positioning hole, the third positioning holes are in one-to-one correspondence with the fourth positioning holes, and the third positioning holes are connected through the second connecting piece.

According to one embodiment of the utility model, the rotating boss is arranged at the bottom of the fan housing upright post, the rotating groove is arranged on the upper end face of the fan housing bottom shell, and the rotating boss is inserted in the rotating groove.

According to one embodiment of the utility model, the first and second connectors are pins.

According to one embodiment of the utility model, when the balance fan cover is in any unfolded or folded state, the positions of the upper cover of the fan cover, the stand column of the fan cover and the bottom shell of the fan cover are all limited through surface contact.

According to one embodiment of the utility model, the fan cover is provided with a first limiting part, and when the balance fan cover is in a unfolded state, the first limiting part is abutted against the first surface of the fan cover upright post; when the balance fan cover is in a folded state, the first limiting part is abutted against the second surface of the fan cover upright post, and an included angle is formed between the first surface and the second surface; or the first limiting part is propped against the third surface of the fan cover bottom shell, and an included angle is formed between the first surface and the third surface when the balance fan cover is in a folded state.

According to one embodiment of the utility model, the fan housing bottom shell is provided with a second limiting part, and when the balance fan housing is in the unfolded state, the second limiting part is abutted against the fourth surface of the fan housing upright post; when the balance fan cover is in a folded state, the second limiting part is abutted against a fifth surface of the fan cover upright post, and an included angle is formed between the fourth surface and the fifth surface;

Or the second limiting part is propped against the sixth surface of the upper cover of the fan cover, and an included angle is formed between the fourth surface and the sixth surface when the balance fan cover is in a folding state.

The utility model also provides a folding balance fan cover, which is characterized by comprising a fan cover upper cover, a plurality of fan cover upright posts and a fan cover bottom shell, wherein one end part of each fan cover upright post is correspondingly connected with one end part of the fan cover upper cover through at least one first connecting piece, or one end part of each fan cover upright post is correspondingly connected with one end part of the fan cover bottom shell through at least one first connecting piece;

When the first connecting piece is fastened, the fan housing upright post and the fan housing upper cover or the fan housing bottom shell are mutually fixed, and when the first connecting piece is loosened, the fan housing upright post and the fan housing upper cover or the fan housing bottom shell can mutually rotate and fold.

The utility model also provides an electronic balance which is characterized by comprising the folding balance fan cover.

The utility model has the positive progress effects that:

the folding balance fan housing and the electronic balance comprising the same optimize the traditional mode of integrally packaging the balance fan housing into a foldable packaging mode. The folding balance fan housing can cancel the integral packaging form of the original balance fan housing, so that the problem of large occupied space of the traditional fan housing packaging is solved.

In addition, the folding balance fan housing reduces packaging and transportation costs, and further reduces the cost of products.

Drawings

The above and other features, properties and advantages of the present utility model will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which like reference characters designate like features throughout the drawings, and in which:

fig. 1 is a perspective view of a folding balance cover of the present utility model.

Fig. 2 is an exploded view of the folding balance cover of the present utility model.

Fig. 3 is a schematic structural view of a rotating boss on a fan cover of the folding balance fan cover.

Fig. 4 is a schematic structural view of a rotating groove at the upper part of a fan housing upright post in the folding balance fan housing of the present utility model.

Fig. 5 is a schematic structural view of a rotating groove in the lower part of a fan housing upright post in a folding balance fan housing according to the present utility model.

Fig. 6 is a schematic structural view of a rotating boss on a bottom case of a fan housing of the folding balance of the present utility model.

Fig. 7 is a schematic structural view of a pin in a folding balance fan housing according to the present utility model.

Fig. 8 is a state diagram showing an initial state of the folding balance cover before folding packaging according to the present utility model.

Fig. 9 is a schematic view of the folding balance fan housing of the present utility model after first turning and folding.

Fig. 10 is a schematic view of the folding balance fan housing of the present utility model after the folding of the folding balance fan housing.

Fig. 11 is a side view of the folding balance cover of the present utility model in an initial state prior to folding packaging.

Fig. 12 is a side view of the folding balance cover of the present utility model after first rotation folding.

Fig. 13 is a side view of the folding balance cover of the present utility model after a secondary rotational folding.

Fig. 14 is a schematic view of yet another folding packaging mode of the folding balance cover of the present utility model.

Fig. 15 is a schematic view of another folding packaging mode of the folding balance cover of the present utility model.

[ Reference numerals ]

Cover 100

Fan housing upright post 200

Fan housing bottom case 300

First connector 400

Second connector 500

First rotation connection portion 210

Second rotation connection portion 110

First positioning hole 211

Second positioning hole 111

Third rotational connection 220

Fourth rotational connection 310

Third positioning hole 221

Fourth positioning hole 311

Bottom surface 130 of the upper cover of the fan housing

Bottom surface 320 of fan housing bottom shell

Detailed Description

In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.

Embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Furthermore, although terms used in the present utility model are selected from publicly known and commonly used terms, some terms mentioned in the present specification may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present utility model is understood, not simply by the actual terms used but by the meaning of each term lying within.

As shown in fig. 1 and 2, the present utility model discloses a folding balance fan housing, which includes a fan housing upper cover 100, a plurality of fan housing columns 200, and a fan housing bottom case 300. One end of the hood pillar 200 is connected to one end of the hood upper 100 by at least one first connector 400. The other end of the fan housing column 200 is correspondingly connected to one end of the fan housing bottom case 300 by at least one second connection member 500. The end portion may be a positive end portion or a side end portion, and the type and position of the end portion are not limited within the scope of the present utility model.

When the first connector 400 is fastened, the fan housing upright post 200 and the fan housing upper cover 100 are fixed to each other, and when the first connector 400 is released, the fan housing upright post 200 and the fan housing upper cover 100 can be folded in a mutually rotating manner. Similarly, when the second connector 500 is fastened, the fan housing stand 200 and the fan housing bottom case 300 are fixed to each other, and when the second connector 500 is released, the fan housing stand 200 and the fan housing bottom case 300 can be folded by rotating each other.

As shown in fig. 2, referring to fig. 3 to 6, a first rotation connection portion 210 is provided at one end of the hood upright 200, a second rotation connection portion 110 is provided at one end of the hood upper 100, and the first rotation connection portion 210 and the second rotation connection portion 110 are correspondingly connected.

In one embodiment, the first rotational connection 210 is configured as a rotational groove at the top of the nacelle stand 200 and the second rotational connection 110 is configured as a rotational boss at one end of the nacelle cover 100. First positioning holes 211 are respectively formed in the two side walls of the rotating groove, and second positioning holes 111 are formed in the rotating boss.

The end portion may be a positive end portion or a side end portion, and the type and position of the end portion are not limited within the scope of the present application.

The rotating grooves are formed in the top of the fan housing upright post 200, and the rotating bosses vertically extend downwards along the bottom end of the fan housing upper cover 100, so that the rotating bosses are inserted into the rotating grooves. The first positioning holes 211 are in one-to-one correspondence with the second positioning holes 111, and then connected by the first connection 400. The first connector 400 may be a pin (as shown in fig. 7).

When the folding balance fan housing is installed, the fan housing upper cover 100 is placed right above the fan housing upright post 200, and then the rotating boss (i.e. the second rotating connecting part 110) on the fan housing upper cover 100 is vertically inserted into the rotating groove (i.e. the first rotating connecting part 210) at the top of the fan housing upright post, so that the upper cover rotating positioning hole (i.e. the second positioning hole 111) and the upright post top positioning hole (i.e. the first positioning hole 211) are concentric, and the plurality of second positioning holes 111 and the plurality of first positioning holes 211 are respectively in one-to-one correspondence.

Then, a plurality of pins (i.e., the first connector 400) are inserted into the corresponding upper cover rotation positioning holes (i.e., the second positioning holes 111) and the column top positioning holes (i.e., the first positioning holes 211), and then the pins (i.e., the first connector 400) are adjusted to a screwed state. Similarly, the pins on the other side are installed in the same way. The top of the hood upper cover 100 and the two hood uprights 200 are now installed to a fixed position, the result of which is shown in fig. 8.

Similarly, in one embodiment, a third rotation connection portion 220 is provided at the other end of the fan housing upright 200, a fourth rotation connection portion 310 is provided at one end of the fan housing bottom case 300, and the third rotation connection portion 220 and the fourth rotation connection portion 310 are correspondingly connected.

Correspondingly, the third rotation connecting portion 220 is configured as a rotation groove, the fourth rotation connecting portion 310 is a rotation boss, the two side walls of the rotation groove are respectively provided with a third positioning hole 221, and the rotation boss is provided with a fourth positioning hole 311.

The rotating grooves are formed in the bottoms of the fan housing upright posts 200, the rotating bosses vertically extend upwards along the upper end face of the fan housing bottom shell 300, and the rotating bosses are inserted into the rotating grooves. The third positioning holes 221 are in one-to-one correspondence with the fourth positioning holes 311 and are connected through the second connecting piece 500. Here, the second connector 500 may be a pin (as shown in fig. 7).

When the folding balance fan housing is installed, the fan housing bottom shell 300 is placed on a horizontal plane, the fan housing upright post 200 is vertically placed right above the bottom shell rotating boss (namely, the fourth rotating connecting part 310), and then the upright post bottom rotating groove (namely, the third rotating connecting part 220) is vertically inserted into the bottom shell rotating boss (namely, the fourth rotating connecting part 310), so that the upright post bottom positioning hole (namely, the third positioning hole 221) and the bottom shell rotating positioning hole (namely, the fourth positioning hole 311) are concentric, and the third positioning holes 221 and the fourth positioning holes 311 are respectively in one-to-one correspondence.

Then, a plurality of pins (i.e., the second connecting piece 500) are inserted into the bottom shell rotation positioning holes (i.e., the fourth positioning holes 311) and the column bottom positioning holes (i.e., the third positioning holes 221), the pins (i.e., the second connecting piece 500) are adjusted to be in a screwed state, and the bottoms of the two fan housing columns 200 are all installed in the same way. Similarly, the pins on the other side are installed in the same way. The bottom of the two fan housing columns 200 and the fan housing bottom case 300 are mounted to a fixed position, and the effect is shown in fig. 8.

Of course, the rotating boss and the rotating groove may be selectively disposed on the fan housing upper cover 100, the fan housing upright post 200, and the fan housing bottom shell 300, and the rotating boss and the rotating groove may be freely combined to realize the rotating folding function.

For example, in another embodiment, the first rotation connection portion 210 may be further provided as a rotation boss, and the second rotation connection portion 110 may be further provided as a rotation groove. First positioning holes 211 are respectively formed on two side walls of the rotating groove, and second positioning holes 111 (not shown) are formed on the rotating boss.

The rotating boss is arranged at the top of the fan housing upright post 200, the rotating groove is arranged on the bottom end surface of the fan housing upper cover 100, and the rotating boss is inserted in the rotating groove. The first positioning holes 211 are connected with the second positioning holes 111 through the first connecting member 400 in a one-to-one correspondence. Here, the pins (as shown in fig. 7) may be used for the first connecting pieces 400.

For example, in another embodiment, the third rotation connection portion 220 may be further configured as a rotation boss, and the fourth rotation connection portion 310 may be further configured as a rotation groove, where the two sidewalls of the rotation groove are respectively provided with a third positioning hole 221, and the rotation boss is provided with a fourth positioning hole 311 (not shown in the figure).

The rotating boss is arranged at the bottom of the fan housing upright post 200, the rotating groove is arranged on the upper end surface of the fan housing bottom shell 300, and the rotating boss is inserted in the rotating groove. The third positioning holes 221 are in one-to-one correspondence with the fourth positioning holes 311 and are connected through the second connecting piece 500. Here, the second connector 500 may be a pin (as shown in fig. 7).

As shown in fig. 8, when the balance fan housing is in the state of fig. 8, one of the second connecting pieces 500 on both sides is removed, and then the other second connecting piece 500 on both sides is slightly loosened, so that the whole body formed by the fan housing upper cover 100 and the two fan housing upright posts 200 rotates 90 degrees clockwise around the bottom shell rotation positioning hole (namely, the fourth positioning hole 311). The other second connector 500 on both sides is then screwed down, and the first folding operation of the balance cover is completed, and the installation effect of the folding cover is shown in fig. 9.

When the balance cover is in the state of fig. 9, one of the first connectors 400 on both sides is removed, and the other first connector 400 on both sides is slightly loosened, so that the cover upper cover 100 can rotate 90 degrees clockwise around the top positioning hole (i.e., the first positioning hole 211) of the upright post, and the bottom surface 130 of the cover upper cover and the bottom surface 320 of the cover bottom shell just contact together. The other first connector 400 on both sides is then tightened again, and the secondary folding operation of the balance cover is completed, and the installation effect of the folded cover is shown in fig. 10.

As for the state before folding (as shown in fig. 8) described above, the state at the time of first folding (as shown in fig. 9), the state at the time of second folding (as shown in fig. 10) is seen from the side, resulting in the states of fig. 11 to 13. The folding process of the balance cover can be seen more intuitively as shown in fig. 11 to 13. Through the twice rotating folding of the balance fan housing, the folding of the whole balance fan housing can be completed, and the packaging space is greatly reduced.

According to the structural description and the description of the folding process, when the balance fan housing is in any unfolded or folded state, the mutual connection parts among the upper cover of the fan housing, the stand column of the fan housing and the bottom shell of the fan housing are all limited through surface contact.

More specifically, the cover 100 has a first limit portion that abuts against the first face of the cover upright 200 when the balance cover is in the extended state. When the balance fan housing is in the folded state, the first limiting portion abuts against the second surface of the fan housing upright 200, and an included angle (for example, 90 °) is formed between the first surface and the second surface. Or the first limiting portion abuts against the third surface of the fan housing bottom case 300. An included angle (e.g., 90 °) is formed between the first face and the third face when the balance cover is in the folded state.

The first limiting portion may be a limiting surface, for example, a certain surface of the upper cover 100 of the fan housing in fig. 9 and 10, and abuts against a certain surface of the bottom shell 300 of the fan housing when being folded, so as to achieve the purpose of limiting; or a certain surface of the fan housing upper cover 100 is abutted against a certain surface of the fan housing upright post 200 when being folded, so that the limiting purpose is realized.

The first limiting portion may be a portion having a plurality of limiting surfaces, for example, as shown in fig. 14 and 15, where a portion of the fan housing upper cover 100 and the fan housing upright post 200 have a plurality of limiting surfaces that abut against each other, so as to achieve the purpose of limiting; or a plurality of limiting surfaces are arranged between the upper cover 100 and a certain part of the fan housing and the bottom shell 300 of the fan housing to mutually abut against each other, so that the purpose of limiting is realized.

In another embodiment, the cover bottom case 300 has a second limiting portion, and when the balance cover is in the unfolded state, the second limiting portion abuts against the fourth surface of the cover pillar 200. When the balance fan housing is in the folded state, the second limiting portion abuts against the fifth surface of the fan housing upright 200, and an included angle (for example, 90 °) is formed between the fourth surface and the fifth surface. Or the second limiting portion abuts against the sixth surface of the fan housing upper cover 100. An included angle (e.g., 90 °) is formed between the fourth face and the sixth face when the balance cover is in the folded state.

The second limiting portion may be a limiting surface, for example, a certain surface of the fan housing bottom case 300 in fig. 9 and 10, and abuts against a certain surface of the fan housing upright post 200 when folded, so as to achieve the purpose of limiting; or a certain surface of the fan housing bottom case 300 is abutted against a certain surface of the fan housing upper cover 100 when folded, thereby achieving the purpose of limiting.

The second limiting portion may be a portion having a plurality of limiting surfaces, for example, as shown in fig. 14 and 15, where a portion of the fan housing bottom case 300 and the fan housing upright post 200 have a plurality of limiting surfaces that abut against each other, so as to achieve the purpose of limiting.

The surface contact can be used for limiting the rotation angle, the rotation angle is not controlled manually, and the folding can be realized by only rotating to the limiting position, so that the whole folding mode is more convenient and easy to operate.

The structure and the folding process describe the situation that the upper end and the lower end of the fan housing upright post can be respectively folded with the upper cover and the bottom shell of the fan housing, and in fact, the folding balance fan housing can also be arranged to be of a single-side folding structure. Specifically, the folding balance wind turbine includes a wind turbine upper cover 100, a plurality of wind turbine columns 200 and a wind turbine bottom case 300, wherein one end of each wind turbine column 200 is correspondingly connected to one end of the wind turbine upper cover 100 by at least one first connector 400, or one end of each wind turbine column 200 is correspondingly connected to one end of the wind turbine bottom case 300 by at least one first connector 400.

When the first connector 400 is fastened, the cowl upright 200 and the cowl top cover 100 or the cowl bottom cover 300 are fixed to each other. When the first connector 400 is released, the fan housing upright 200 and the fan housing upper cover 100 or the fan housing bottom case 300 can be mutually rotated and folded.

Of course, the above examples are all examples of the folding manner of the folding balance fan housing, and are not limiting, and the folding manner of the folding balance fan housing can be changed according to actual requirements, and are all within the scope of the present application, and are not described in detail herein.

Similarly, the folding rotation directions shown in fig. 8, 9, 11 and 12 are only examples, and are not limiting, and the folding rotation modes can be changed according to actual requirements, which are all within the scope of the present application, and are not described in detail herein.

In addition, the utility model also provides an electronic balance, which comprises the folding balance fan housing.

One way of achieving folding of the electronic balance housing is exemplified above, as well as various derived folding ways, as shown in fig. 14 and 15, respectively. The folding principle is similar to the above-described process, and is not described herein, and is also within the scope of the present application. The person skilled in the art can choose the appropriate folding method according to the actual situation.

In summary, the folding balance fan housing and the electronic balance comprising the same optimize the traditional mode of integrally packaging the balance fan housing into a foldable packaging mode. The folding balance fan housing can cancel the integral packaging form of the original balance fan housing, so that the problem of large occupied space of the traditional fan housing packaging is solved.

In addition, the folding balance fan housing reduces packaging and transportation costs, and further reduces the cost of products.

It will be apparent to those skilled in the art from this disclosure that the foregoing disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements and adaptations of the utility model may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within the present disclosure, and therefore, such modifications, improvements, and adaptations are intended to be within the spirit and scope of the exemplary embodiments of the present disclosure.

Meanwhile, the present application uses specific words to describe embodiments of the present application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application.

Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (16)

1. The foldable balance fan cover is characterized by comprising a fan cover upper cover, a plurality of fan cover stand columns and a fan cover bottom shell, wherein one end parts of the fan cover stand columns are correspondingly connected with one end parts of the fan cover upper cover through at least one first connecting piece;

The other end of the fan housing upright post is correspondingly connected with one end of the fan housing bottom shell through at least one second connecting piece, when the second connecting piece is fastened, the fan housing upright post and the fan housing bottom shell are mutually fixed, and when the second connecting piece is loosened, the fan housing upright post and the fan housing bottom shell can be mutually rotated and folded.

2. The folding balance fan cover according to claim 1, wherein a first rotating connecting part is arranged at one end part of the fan cover upright post, a second rotating connecting part is arranged at one end part of the fan cover upper cover, and the first rotating connecting part is correspondingly connected with the second rotating connecting part;

The fan cover is characterized in that a third rotating connecting part is arranged at the other end part of the fan cover upright post, a fourth rotating connecting part is arranged at one end part of the fan cover bottom shell, and the third rotating connecting part and the fourth rotating connecting part are correspondingly connected.

3. The folding balance fan cover according to claim 2, wherein the first rotating connecting portion is a rotating groove, the second rotating connecting portion is a rotating boss, first positioning holes are respectively formed in two side walls of the rotating groove, second positioning holes are formed in the rotating boss, the first positioning holes and the second positioning holes are in one-to-one correspondence, and the first positioning holes and the second positioning holes are connected through the first connecting piece.

4. The folding balance fan cover according to claim 3, wherein the rotating groove is formed in the top of the fan cover upright post, the rotating boss vertically extends downwards along the bottom end of the fan cover upper cover, and the rotating boss is inserted into the rotating groove.

5. The folding balance fan cover according to claim 2, wherein the first rotating connecting portion is a rotating boss, the second rotating connecting portion is a rotating groove, first positioning holes are respectively formed in two side walls of the rotating groove, second positioning holes are formed in the rotating boss, and the first positioning holes and the second positioning holes are in one-to-one correspondence and are connected through the first connecting piece.

6. The folding balance fan housing of claim 5, wherein the rotating boss is arranged at the top of the fan housing upright post, the rotating groove is arranged on the bottom end surface of the fan housing upper cover, and the rotating boss is inserted in the rotating groove.

7. The folding balance fan cover according to claim 2, wherein the third rotating connecting portion is a rotating groove, the fourth rotating connecting portion is a rotating boss, third positioning holes are respectively formed in two side walls of the rotating groove, fourth positioning holes are formed in the rotating boss, and the third positioning holes are in one-to-one correspondence with the fourth positioning holes and are connected through the second connecting piece.

8. The folding balance fan cover according to claim 7, wherein the rotating groove is formed in the bottom of the fan cover upright post, the rotating boss extends vertically upwards along the upper end face of the fan cover bottom shell, and the rotating boss is inserted into the rotating groove.

9. The folding balance fan cover according to claim 2, wherein the third rotating connection portion is a rotating boss, the fourth rotating connection portion is a rotating groove, third positioning holes are respectively formed in two side walls of the rotating groove, fourth positioning holes are formed in the rotating boss, and the third positioning holes are in one-to-one correspondence with the fourth positioning holes and are connected through the second connecting piece.

10. The folding balance fan housing of claim 9, wherein the rotating boss is disposed at the bottom of the fan housing upright, the rotating groove is disposed on the upper end surface of the fan housing bottom shell, and the rotating boss is inserted into the rotating groove.

11. The folding balance cover of claim 1, wherein said first connector and said second connector are pins.

12. The folding balance cover of any of claims 1-11, wherein when the balance cover is in any unfolded or folded state, the interconnection between the cover top cover, the cover post, and the cover bottom shell is limited by surface contact.

13. The folding balance cover of any one of claims 1-11, wherein the cover upper cover has a first limit portion that abuts against a first face of the cover upright when the balance cover is in an expanded state; when the balance fan cover is in a folded state, the first limiting part is abutted against the second surface of the fan cover upright post, and an included angle is formed between the first surface and the second surface; or the first limiting part is propped against the third surface of the fan cover bottom shell, and an included angle is formed between the first surface and the third surface when the balance fan cover is in a folded state.

14. The folding balance cover of any one of claims 1-11, wherein the cover bottom shell has a second limit portion that abuts against a fourth face of the cover post when the balance cover is in an unfolded state; when the balance fan cover is in a folded state, the second limiting part is abutted against a fifth surface of the fan cover upright post, and an included angle is formed between the fourth surface and the fifth surface;

Or the second limiting part is propped against the sixth surface of the upper cover of the fan cover, and an included angle is formed between the fourth surface and the sixth surface when the balance fan cover is in a folding state.

15. The foldable balance fan cover is characterized by comprising a fan cover upper cover, a plurality of fan cover stand columns and a fan cover bottom shell, wherein one end part of each fan cover stand column is correspondingly connected with one end part of the fan cover upper cover through at least one first connecting piece, or one end part of each fan cover stand column is correspondingly connected with one end part of the fan cover bottom shell through at least one first connecting piece;

When the first connecting piece is fastened, the fan housing upright post and the fan housing upper cover or the fan housing bottom shell are mutually fixed, and when the first connecting piece is loosened, the fan housing upright post and the fan housing upper cover or the fan housing bottom shell can mutually rotate and fold.

16. An electronic balance, characterized in that it comprises a folding balance cover according to any one of claims 1-15.