Balance fan cover and electronic balance comprising same

Abstract

The invention provides a balance fan housing and an electronic balance comprising the same, the balance fan housing comprises a fan housing upper cover, a fan housing bottom shell and at least two fan housing columns, the bottom end face of the fan housing upper cover is provided with at least one first limiting part and at least one second limiting part, the first limiting part protrudes outwards and is parallel to the extension direction of the fan housing columns, and the second limiting part protrudes outwards and is parallel to the extension direction of the fan housing columns. The second limiting part protrudes outwards and is perpendicular to the extending direction of the fan cover stand column. The fan cover stand column comprises a first end part and a second end part, and the first end part is provided with at least one first limiting hole and at least one second limiting hole; the first limiting parts are connected with the corresponding first limiting holes, the second limiting parts are correspondingly connected with the second limiting holes, and the second ends of the fan cover stand columns are fixedly connected with the fan cover bottom shell. Through the effective connection mode of mutual connection between the holes in the fan housing stand columns and the bosses of the fan housing upper cover, the fan housing has the advantages that the production efficiency is improved, the cost is reduced, and after-sales personnel can conveniently maintain and replace the fan housing.

Description

Technical Field

[0001] The invention relates to the field of electronic balances, and in particular to a balance wind shield and an electronic balance comprising the same. Background Art

[0002] An electronic balance is a balance that uses electromagnetic force to balance and weigh objects. The characteristics of an electronic balance are accurate and reliable weighing, fast and clear display, automatic detection system, simple automatic calibration device, overload protection and other devices. Electronic balances are usually suitable for industry, agriculture, commerce, schools, hospitals, scientific research and other units, which have certain requirements for sensitivity and stability.

[0003] These workplaces are easily affected by the external environment when weighing. Therefore, electronic balances are usually equipped with balance windshields, which become an indispensable part of electronic balances.

[0004] However, in the balance windshield, the existing connection method between the balance windshield column and the top cover is very complicated. Usually, the balance windshield column is fixed to the balance windshield cover by screws and connecting plates. The balance windshield column and the windshield top cover are tightly connected and assembled together with the windshield bottom shell to form a complete balance windshield. This structure requires screws to fix the column to the top cover of the windshield, and a metal plate component is also required to fix the relative positions of the left and right columns of the windshield.

[0005] Due to the large number of parts involved, the assembly process is complicated, the assembly time of the production line is long, the production line workers need a lot of time to complete, and the cost is high. At the same time, for the after-sales service team, the later maintenance is more troublesome.

[0006] In view of this, the inventor of the present application has designed a balance wind shield and an electronic balance including the same, in order to overcome the above technical problems. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the connection method between the windshield column and the top cover of the balance windshield is very complicated and the maintenance is cumbersome, and to provide a balance windshield and an electronic balance including the same.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] The present invention provides a balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield columns arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, wherein the wind shield upper cover is provided with at least one first limiting portion and at least one second limiting portion on the bottom end surface thereof, the first limiting portion protruding outwards and parallel to the extension direction of the wind shield column, the second limiting portion protruding outwards and perpendicular to the extension direction of the wind shield column;

[0010] The wind shield column comprises a first end and a second end, and the first end is provided with at least one first limiting hole and at least one second limiting hole;

[0011] The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, which is used to detachably connect the wind hood column to the wind hood upper cover, and the second end of the wind hood column is fixedly connected to the wind hood bottom shell.

[0012] The present invention also provides a balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield columns arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, wherein at least one first limiting portion and at least one second limiting portion are arranged on the upper end surface of the wind shield bottom shell;

[0013] The first limiting portion protrudes outward and is parallel to the extension direction of the wind shield column, and the second limiting portion protrudes outward and is perpendicular to the extension direction of the wind shield column; the wind shield column includes a first end and a second end, and the first end is provided with at least one first limiting hole and at least one second limiting hole;

[0014] The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, which is used to detachably connect the wind hood column to the wind hood bottom shell, and the second end of the wind hood column is fixedly connected to the wind hood upper cover.

[0015] The present invention also provides a balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield uprights arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, wherein at least one first limiting portion and at least one second limiting portion are respectively arranged on the bottom end surface of the wind shield upper cover and the upper end surface of the wind shield bottom shell;

[0016] Wherein, the first limiting portion protrudes outward and is parallel to the extension direction of the wind shield column, and the second limiting portion protrudes outward and is perpendicular to the extension direction of the wind shield column; the wind shield column includes a first end and a second end, and the first end and the second end are respectively provided with at least one first limiting hole and at least one second limiting hole;

[0017] The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, so as to detachably connect the wind shield column to the wind shield upper cover and the wind shield bottom shell.

[0018] According to an embodiment of the present invention, the first end of the wind shield column further includes a side portion, and the side portion is used to position the second limiting hole.

[0019] According to one embodiment of the present invention, the wind shield upper cover includes two mounting columns and a crossbeam arranged parallel to each other, the mounting columns are connected by the crossbeam, the first limiting portions are respectively located on the mounting columns, and the second limiting portions are respectively located on the mounting columns.

[0020] According to an embodiment of the present invention, the wind shield column is a hollow columnar structure.

[0021] According to an embodiment of the present invention, the first limiting portion is a cylinder, and the first limiting hole is a circular hole.

[0022] According to one embodiment of the present invention, the second limiting portion includes a limiting protrusion, and a mounting seat is arranged on the bottom end surface of the wind shield upper cover, and the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole.

[0023] According to one embodiment of the present invention, the second limiting portion includes a limiting protrusion, and a mounting seat is arranged on the upper end surface of the wind cover bottom shell, and the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole.

[0024] According to an embodiment of the present invention, the second limiting portion includes a limiting protrusion, a mounting seat is provided on the bottom end surface of the wind shield upper cover, the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole;

[0025] A mounting seat is arranged on the upper end surface of the wind shield bottom shell, the limiting protrusion is fixed on the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected with the corresponding second limiting hole.

[0026] According to one embodiment of the present invention, at least one reinforcing rib is provided between the second side surface of the mounting seat and the corresponding wind shield upper cover or the wind shield bottom shell.

[0027] According to an embodiment of the present invention, a position locking boss is further provided on the wind shield upper cover or the wind shield bottom shell. The position locking boss is located on a side close to the mounting seat and is used to limit the position of the wind shield column.

[0028] According to an embodiment of the present invention, the first end surface of the position locking boss is configured as an inclined surface, the first end surface faces the second limiting portion, and the inclined surface is inclined from top to bottom.

[0029] According to an embodiment of the present invention, a limiting groove is provided on the wind shield upper cover or the wind shield bottom shell, the limiting groove further comprises a limiting wall, and the limiting groove is located on a side close to the limiting protrusion;

[0030] The first limiting portion and the first limiting hole are rotatably connected, and the wind hood column is rotatable in the limiting groove. When the wind hood column is in a locked position, there is a distance between the wind hood column and the limiting wall of the limiting groove; when the wind hood column is in an unlocked position, the wind hood column abuts against the limiting wall of the limiting groove.

[0031] According to an embodiment of the present invention, the limiting groove is configured as a notch.

[0032] The present invention further provides an electronic balance, which is characterized in that the electronic balance comprises the balance wind shield and a balance body as described above, and the balance wind shield is installed on the balance body.

[0033] The positive and progressive effects of the present invention are:

[0034] The balance wind shield and the electronic balance including the same of the present invention optimize the traditional way of fixing the balance wind shield column to the wind shield upper cover by screws and connecting plates to a way of effectively connecting by mutual clamping between the opening on the wind shield column and the boss on the wind shield upper cover.

[0035] The balance wind shield is effectively connected by mutually snapping the opening on the wind shield column and the boss on the wind shield upper cover, thereby fixing the wind shield column and the wind shield upper cover, solving the problem of complex assembly process and long assembly time of the production line of the existing structure.

[0036] In addition, the balance wind hood also has the advantages of improving production efficiency, reducing costs, and facilitating maintenance and replacement by after-sales personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always represent the same features, wherein:

[0038] Figure 1 The figure is a schematic structural diagram of an embodiment of an electronic balance of the present invention.

[0039] Figure 2 The figure is a schematic structural diagram of an embodiment of a balance wind shield of the present invention.

[0040] Figure 3 The figure is an exploded schematic diagram of an embodiment of a balance wind shield of the present invention.

[0041] Figure 4 The present invention is a structural schematic diagram of the assembly position of the wind shield column in one embodiment of the balance wind shield of the present invention.

[0042] Figure 5 The figure is a schematic structural diagram of the assembly position of the wind shield upper cover in one embodiment of the balance wind shield of the present invention.

[0043] Figure 6 The present invention is a schematic structural diagram of the assembly position of the wind shield column and the wind shield upper cover in one embodiment of the balance wind shield of the present invention.

[0044] Figure 7 The figure is a schematic diagram of the arrangement of reinforcing ribs in one embodiment of the balance wind shield of the present invention.

[0045] Figure 8 This is a schematic diagram of the state before rotation and locking when the wind shield column and the wind shield upper cover are assembled in one embodiment of the balance wind shield of the present invention.

[0046] Fig. 9 The present invention is a schematic diagram of a balance wind shield in one embodiment of the present invention. The wind shield column and the wind shield upper cover are assembled and rotated and locked.

[0047] Fig.10 It is a partial cross-sectional view of a balance wind shield in one embodiment of the present invention after the wind shield upright column and the wind shield upper cover are assembled and rotated and locked.

[0048] [Reference Signs]

[0049] Balance wind shield 100

[0050] Balance body 200

[0051] Wind shield cover 110

[0052] Wind shield bottom shell 120

[0053] Wind shield column 130

[0054] The first limiting portion 111

[0055] The first limiting hole 131

[0056] The second limiting portion 112

[0057] The second limiting hole 132

[0058] Mounting column 113

[0059] Beam 114

[0060] Mounting Block 115

[0061] Limiting protrusion 116

[0062] Reinforcement 117

[0063] Position locking boss 118

[0064] First end surface 1181

[0065] Limiting slot 119

[0066] Limit wall 1191 DETAILED DESCRIPTION

[0067] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0068] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present invention, examples of which are shown in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0069] Furthermore, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the present invention specification may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this document.

[0070] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings connoted by each term.

[0071] like Figure 1As shown, the present invention discloses an electronic balance, which includes a balance wind shield 100 and a balance body 200, wherein the balance wind shield 100 is mounted on the balance body 200. In the prior art, the column of the balance wind shield is fixed to the upper cover of the balance wind shield by screws and connecting plates. One end of the column of the balance wind shield is fastened to the upper cover of the balance wind shield, and the other end of the column of the balance wind shield is assembled with the bottom shell of the wind shield to form a complete balance wind shield.

[0072] This structure requires screws to fix the column to the top cover of the windshield, and a metal plate component is required to fix the relative position of the left and right columns of the windshield. This installation method is very complicated, involves many parts and is not convenient for later maintenance.

[0073] Therefore, the present invention improves the installation structure of the wind shield column and the wind shield upper cover in the balance wind shield 100, and at the same time achieves the stability and convenience of installation. The specific structure of the balance wind shield 100 in the present invention is described in detail below.

[0074] like Figure 2 and Figure 3 As shown, the balance wind shield 100 disclosed in the present invention includes a wind shield upper cover 110, a wind shield bottom shell 120 opposite to the wind shield upper cover, and at least two wind shield columns 130 arranged in a vertical direction, connecting the wind shield upper cover 110 and the wind shield bottom shell 120. The wind shield column 130 includes a first end and a second end, and the first end of each wind shield column 130 is detachably connected to the wind shield upper cover 110, such as a snap connection or a rotation connection, etc. The second end of each wind shield column 130 is fixedly connected to the wind shield bottom shell 120, for example, by screws or other fixed connecting members, the wind shield column 130 and the wind shield bottom shell 120 are fixedly connected.

[0075] Alternatively, the technical solution of the present application may also be configured as follows: the first end of the hood column 130 is detachably connected to the hood bottom shell 120, such as by snap connection or rotation connection, etc. The second end of the hood column 130 is fixedly connected to the hood upper cover 110, such as by screws or other fixed connectors, to fix the hood column 130 and the hood upper cover 110.

[0076] Alternatively, the technical solution of the present application may also be configured as follows: the two ends of the wind shield column 130 are detachably connected to the wind shield upper cover 110 and the wind shield bottom shell 120 respectively, such as by snap-on or rotational connection.

[0077] Through the above installation method, the wind shield columns 130 are arranged parallel to each other at one end of the wind shield upper cover 110 and the wind shield bottom shell 120, and the wind shield upper cover 110, the wind shield bottom shell 120 and the wind shield columns 130 form a frame structure, and the windshield is surrounded by the four sides of the frame structure.

[0078] The above embodiments can achieve the purpose of the present invention and are within the protection scope of this application. Since the above embodiments are all based on one principle, the following mainly describes in detail the example of the hood column 130 being detachably connected to the hood upper cover 110 and fixedly connected to the hood bottom shell 120.

[0079] refer to Figure 4 and Figure 5 As shown, in this embodiment, at least one first limiting portion 111 and at least one second limiting portion 112 are provided on the bottom end surface of the wind shield upper cover 110. The first limiting portion 111 protrudes outward and is parallel to the extension direction of the wind shield column (for example, protruding downward along the bottom end surface of the wind shield upper cover 110) ( Figure 5 Only the first limiting portion 111 on one side of the wind shield upper cover 110 is shown, and in fact the structure on the other side is a consistent symmetrical structure), and at least one first limiting hole 131 ( Figure 4 Only the structure on one wind shield column 130 is shown, and the other wind shield columns 130 adopt the same structure). The first limiting portion 111 is installed in the corresponding first limiting hole 131, and the structures of the first limiting portion 111 and the first limiting hole 131 correspond to each other.

[0080] A second stopper 112 is further provided on the bottom end surface of the wind shield upper cover 110, and the second stopper 112 protrudes outward and is perpendicular to the extension direction of the wind shield column 130 (for example, protruding toward the side along the bottom end surface of the wind shield upper cover 110) ( Figure 5 Only the second limiting portion 112 on one side of the wind shield upper cover 110 is shown, and in fact the structure on the other side is a consistent symmetrical structure). The first end of the wind shield column 130 also includes a side portion for arranging a second limiting hole 132 ( Figure 4 Only the structure on one wind shield column 130 is shown, and the other wind shield columns 130 adopt the same structure). The second limiting portion 112 is connected to the second limiting hole 132 correspondingly, and the structures of the second limiting portion 112 and the second limiting hole 132 correspond to each other.

[0081] In some embodiments, the structure of the wind shield upper cover 110 can be preferably configured to include two mounting columns 113 and a crossbeam 114 arranged parallel to each other, and the mounting columns 113 are connected by the crossbeam 114. The first limiting portions 111 are respectively disposed on the two mounting columns 113, and the second limiting portions 112 are respectively disposed on the two mounting columns 113.

[0082] The structure of the wind shield column 130 is a hollow columnar structure. In this way, the first limiting portion 111 is installed in the first limiting hole 131, so that a rotation connection is formed between the first limiting portion 111 and the first limiting hole 131, thereby driving the wind shield column 130 to be rotated relative to the wind shield upper cover 110.

[0083] See also Figures 4 to 6 As shown, in some embodiments, the first limiting portion 111 and the first limiting hole 131 are rotatably connected, the first limiting portion 111 can be preferably a cylindrical structure, and the first limiting hole 131 can be preferably a circular hole structure. Of course, this is only an example, and other connection structures that can achieve rotation can all achieve the technical solution of the present invention and are within the protection scope of the present invention.

[0084] In some embodiments, the second limiting portion 112 may preferably include a limiting protrusion 116. A mounting seat 115 is provided on the bottom end surface of the wind shield upper cover 110. For example, in this embodiment, the mounting seat 115 is provided on the corresponding mounting column 113. The mounting seat 115 includes a first side surface and a second side surface. The limiting protrusion 116 is fixed to the first side surface of the mounting seat 115, so that the limiting protrusion 116 is correspondingly connected to the corresponding second limiting hole 132. A plurality of reinforcing ribs 117 are provided between the second side surface of the mounting seat 115 and the corresponding mounting column 113.

[0085] Of course, when the hood bottom shell 120 is detachably connected to the hood column 130, the mounting seat 115 can also be arranged on the hood bottom shell 120, and the limiting protrusion 116 is fixed to one side of the mounting seat 115, so that the limiting protrusion 116 is correspondingly connected to the corresponding second limiting hole 132. A plurality of reinforcing ribs 117 are arranged between the second side surface of the mounting seat 115 and the corresponding mounting column 113.

[0086] Similarly, when the hood upper cover 110 and the hood bottom shell 120 are detachably connected to the hood column 130, the mounting seat 115 is mounted on the hood upper cover 110 and the hood bottom shell 120, respectively, and the limiting protrusion 116 is fixed to one side of the mounting seat 115, so that the limiting protrusion 116 is correspondingly connected to the corresponding second limiting hole 132. A plurality of reinforcing ribs 117 are arranged between the other side of the mounting seat 115 and the corresponding mounting column 113.

[0087] The structural principles adopted above are all consistent and within the protection scope of this application. Only one embodiment is taken as an example here, and those skilled in the art should understand the evolution of the other two structural modes.

[0088] In this embodiment, the mounting seat 115 and the limiting protrusion 116 can meet the requirements of the balance wind shield strength and packaging and transportation protection by adjusting the thickness, shape, width and other design parameters of the structure, and the structure of the wind shield column 130 that matches it also needs to be adjusted accordingly.

[0089] For the mounting base 115, the following is an example based on the specific data from the actual test:

[0090] For example, the length of the mounting seat 115 of one embodiment of the present invention is 27 mm, the wall thickness is 2.2 mm, and the height is 16 mm. In actual tests, it is found that the wall thickness of the mounting seat 115 has the greatest influence on the tensile strength.

[0091] The approximate relationship between the wall thickness of the mounting base 115 and the maximum tensile force that the connection between the fan shield column can withstand is as follows:

[0092] When the wall thickness of the mounting seat 115 is 0-1mm, the maximum tension ranges from 0-300N. When the wall thickness of the mounting seat 115 is 1-2mm, the maximum tension ranges from 300-800N. When the wall thickness of the mounting seat 115 is 2-3mm, the maximum tension ranges from 800-1200N. When the wall thickness of the mounting seat 115 is more than 3mm, the maximum tension ranges from more than 1200N.

[0093] For the limiting protrusion 116, the following is an example based on specific data from actual testing:

[0094] For example, the length of the limiting protrusion 116 of an embodiment of the present invention is 22 mm, the width is 3.7 mm, and the height is 2 mm. In actual tests, it is found that the width of the limiting protrusion 116 has the greatest influence on the tensile strength. The approximate relationship between the width of the limiting protrusion 116 and the maximum tensile force that the column connection can withstand is as follows:

[0095] When the width of the limiting protrusion 116 is 0-1 mm, the maximum tension ranges from 0-350 N. When the width of the limiting protrusion 116 is 1-2 mm, the maximum tension ranges from 350-950 N. When the width of the limiting protrusion 116 is 2-4 mm, the maximum tension ranges from 950-1500 N. When the width of the limiting protrusion 116 is greater than 4 mm, the maximum tension ranges from greater than 1500 N.

[0096] The limiting protrusion 116 here can preferably adopt an elliptical strip structure, a circular strip structure or a polygonal strip structure. The shape of the second limiting hole 132 matches the shape of the limiting protrusion 116. When the wind shield column 130 and the wind shield upper cover 110 are assembled, the limiting protrusion 116 and the second limiting hole 132 are correspondingly buckled.

[0097] Of course, this is only an example, and the shapes of the limiting protrusion 116 and the second limiting hole 132 are not limited to the oval or the shapes listed above, and they need to match each other according to actual needs. Other achievable clamping structures can implement the technical solution of the present invention and are within the protection scope of the present invention.

[0098] like Figure 7 As shown, the reinforcing ribs 117 can meet the requirements of the balance wind shield strength and packaging and transportation protection by adjusting their shape, quantity, thickness and arrangement.

[0099] For example, the number of reinforcing ribs 117 in one embodiment of the present invention can be preferably set to 5, with a thickness of 2 mm, arranged in parallel, uniform and equidistant, and in the shape of an oblique chamfered triangular rib structure. Specifically, the strength of the balance windshield and the requirements of packaging and transportation protection can be met by adjusting the number, thickness, arrangement and shape of the reinforcing ribs 117.

[0100] In some embodiments, the wind shield upper cover 110 or the wind shield bottom shell 120 may also be provided with a position locking boss 118. For example, in this embodiment, a position locking boss 118 is provided on the mounting column 113 of the wind shield upper cover 110, located on a side close to the mounting seat 115, for limiting the position of the wind shield column 130. The first end face 1181 of the position locking boss 118 may preferably be set as an inclined surface, and the first end face 1181 faces the second limiting portion 112, so that a limiting groove is formed between the first end face 1181 and the second limiting portion 112. For example, the inclined surface in this embodiment is set to be inclined from top to bottom, and the inclination angle of the inclined surface may be set to 45° or 60°.

[0101] In this embodiment, the position locking boss 118 may preferably be a "raised slope" shaped structure. Of course, in addition to this, the position locking boss 118 may also be an arc-shaped boss, a cylindrical boss, a square boss, and other shapes and structures that can achieve the locking purpose. These structures are all within the protection scope of this application.

[0102] In addition, the wind shield upper cover 110 or the wind shield bottom shell 120 may also be provided with a limiting groove 119. For example, in this embodiment, the limiting groove 119 is provided on the crossbeam 114 of the wind shield upper cover 110. For example, the limiting groove 119 may preferably be provided as a notch. In this embodiment, the limiting groove 119 is located at the connection between the crossbeam 114 and the mounting column 113, and is used to control the rotation angle of the wind shield column 130. The limiting groove 119 has a limiting wall 1191.

[0103] The first limiting portion 111 and the first limiting hole 131 are rotatably connected, and the wind shield column 130 can rotate in the limiting groove 119. When the wind shield column 130 is in the locked position, there is a distance (such as Fig. 9 When the wind shield column 130 is in the unlocked position, the wind shield column 130 abuts against the limiting wall 1191 (as shown in FIG. Figure 8 shown).

[0104] By adjusting the shape and width of the limit slot 119, the rotation angle of the wind shield column 130 during installation can be adjusted. In addition, corresponding notches can be designed on the wind shield column 130 to serve as the limit slot 119, as long as the avoidance function can be achieved. These structures are all within the protection scope of this application.

[0105] like Figures 8 to 10 As shown, during the installation of the hood column 130 and the hood upper cover 110, the second limiting portion 112 and the first limiting portion 111 are inserted into the hollow structure at one end of the hood column 130. The specific installation process is as follows:

[0106] First, hold the hood cover 110 and the hood column 130, align the first limiting hole 131 of the hood column 130 with the first limiting portion 111 of the hood cover 110, so that the first limiting portion 111 is inserted into the first limiting hole 131 to form a rotation connection. The hood column 130 is pre-positioned initially.

[0107] Then, the wind shield column 130 is tilted slightly to avoid the position locking boss 118, and the wind shield column 130 is rotated clockwise around the first limiting portion 111 so that the second limiting portion 112 on the wind shield upper cover 110 is installed in the second limiting hole 132 on the wind shield column 130.

[0108] When the second limiting hole 132 is locked with the second limiting portion 112, the outer wall of one side of the fan shield column 130 is locked at the position locking boss 118. This structure can effectively limit the movement of the fan shield column 130, making the connection between the fan shield column 130 and the fan shield upper cover 110 more stable.

[0109] Next, the wind shield column 130 is straightened. At this time, the wind shield column 130 and the wind shield upper cover 110 are effectively connected together.

[0110] According to the above structural description, in the process of installing the fan shield column 130 and rotating it clockwise, the fan shield upper cover 110 is specially designed with a limit groove 119 and a position locking boss 118. Among them, the limit groove 119 can control the fan shield column 130 to rotate within a certain angle, and the position locking boss 118 can make the fan shield column 130 more tightly connected to the fan shield upper cover 110 and not easy to withdraw.

[0111] Considering the particularity of the application environment of the balance wind shield, a higher degree of stability is required. Therefore, according to the actual situation, the embodiment of the present application can improve the strength of the overall structure of the product by adjusting the external dimensions of the second limiting portion 112 on the wind shield upper cover 110, thereby meeting the requirements of product structural stability, functionality, and packaging and transportation. The second limiting portion 112 of the wind shield upper cover 110 and the second limiting hole 132 of the wind shield column 130 cooperate with each other, so that the wind shield upper cover 110 and the wind shield column 130 are stably connected together.

[0112] Finally, the wind shield bottom shell 120 and the wind shield column 130 are assembled together by screws to form a stable and reliable balance wind shield 100.

[0113] As described above, the balance wind shield of the present invention aims to provide a simple, reliable and convenient connection structure between the wind shield column and the wind shield upper cover. The operator only needs to align the first limiting hole on the wind shield column with the first limiting part on the wind shield upper cover, insert it and rotate the wind shield column clockwise, so that the second limiting part on the wind shield upper cover is clamped in the second limiting hole on the wind shield column, and the position of the wind shield column is fixed.

[0114] When the fan shield column needs to be removed, hold the fan shield upper cover and rotate the fan shield column counterclockwise to a certain angle, so that the fan shield column can be easily and conveniently taken out from the fan shield upper cover.

[0115] This structure can be used to improve product reliability, save screws and sheet metal parts, improve production efficiency of production lines, and facilitate the work of service and maintenance teams.

[0116] The present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or multiple times in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0117] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield columns arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, characterized in that: At least one first limiting portion and at least one second limiting portion are provided on the bottom end surface of the wind shield upper cover, the first limiting portion protrudes outward and is parallel to the extension direction of the wind shield column, and the second limiting portion protrudes outward and is perpendicular to the extension direction of the wind shield column; The wind shield column comprises a first end and a second end, and the first end is provided with at least one first limiting hole and at least one second limiting hole; The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, which is used to detachably connect the wind hood column to the wind hood upper cover, and the second end of the wind hood column is fixedly connected to the wind hood bottom shell.

2. A balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield columns arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, characterized in that: At least one first limiting portion and at least one second limiting portion are provided on the upper end surface of the wind shield bottom shell; The first limiting portion protrudes outward and is parallel to the extension direction of the wind shield column, and the second limiting portion protrudes outward and is perpendicular to the extension direction of the wind shield column; the wind shield column includes a first end and a second end, and the first end is provided with at least one first limiting hole and at least one second limiting hole; The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, which is used to detachably connect the wind hood column to the wind hood bottom shell, and the second end of the wind hood column is fixedly connected to the wind hood upper cover.

3. A balance wind shield, comprising a wind shield upper cover, a wind shield bottom shell opposite to the wind shield upper cover, and at least two wind shield columns arranged in a vertical direction, connecting the wind shield upper cover and the wind shield bottom shell, characterized in that: At least one first limiting portion and at least one second limiting portion are respectively arranged on the bottom end surface of the wind shield upper cover and the upper end surface of the wind shield bottom shell; Wherein, the first limiting portion protrudes outward and is parallel to the extension direction of the wind shield column, and the second limiting portion protrudes outward and is perpendicular to the extension direction of the wind shield column; the wind shield column includes a first end and a second end, and the first end and the second end are respectively provided with at least one first limiting hole and at least one second limiting hole; The first limiting portion is connected to the corresponding first limiting hole, and the second limiting portion is correspondingly connected to the second limiting hole, so as to detachably connect the wind shield column to the wind shield upper cover and the wind shield bottom shell.

4. The balance wind shield according to any one of claims 1 to 3, characterized in that: The first end of the wind shield column also includes a side portion, and the side portion is used to position the second limiting hole.

5. The balance wind shield according to any one of claims 1 to 3, characterized in that: The wind shield upper cover includes two mounting columns and a cross beam which are arranged in parallel with each other. The mounting columns are connected by the cross beam. The first limiting parts are respectively located on the mounting columns, and the second limiting parts are respectively located on the mounting columns.

6. The balance wind shield according to any one of claims 1 to 3, characterized in that: The wind shield column is a hollow columnar structure.

7. The balance wind shield according to any one of claims 1 to 3, characterized in that: The first limiting portion is a cylinder, and the first limiting hole is a round hole.

8. The balance wind shield according to claim 1, characterized in that: The second limiting portion includes a limiting protrusion, and a mounting seat is arranged on the bottom end surface of the wind shield upper cover, and the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole.

9. The balance wind shield according to claim 2, characterized in that: The second limiting portion includes a limiting protrusion, and a mounting seat is arranged on the upper end surface of the wind cover bottom shell, and the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole.

10. The balance wind shield according to claim 3, characterized in that: The second limiting portion includes a limiting protrusion, a mounting seat is arranged on the bottom end surface of the wind shield upper cover, the mounting seat includes a first side surface and a second side surface, wherein the limiting protrusion is fixed to the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected to the corresponding second limiting hole; A mounting seat is arranged on the upper end surface of the wind shield bottom shell, the limiting protrusion is fixed on the first side surface of the mounting seat, and the limiting protrusion is correspondingly connected with the corresponding second limiting hole.

11. The balance wind shield according to any one of claims 8 to 10, characterized in that: At least one reinforcing rib is arranged between the second side surface of the mounting seat and the corresponding wind shield upper cover or the wind shield bottom shell.

12. The balance wind shield according to claim 11, characterized in that: A position locking boss is also provided on the wind shield upper cover or the wind shield bottom shell. The position locking boss is located on a side close to the mounting seat and is used to limit the position of the wind shield column.

13. The balance wind shield according to claim 12, characterized in that: The first end surface of the position locking boss is configured as an inclined surface, the first end surface faces the second limiting portion, and the inclined surface is inclined from top to bottom.

14. The balance wind shield according to any one of claims 8 to 10, characterized in that: A limiting groove is provided on the wind shield upper cover or the wind shield bottom shell, the limiting groove further comprises a limiting wall, and the limiting groove is located on a side close to the limiting protrusion; The first limiting portion and the first limiting hole are rotatably connected, and the wind hood column is rotatable in the limiting groove. When the wind hood column is in a locked position, there is a distance between the wind hood column and the limiting wall of the limiting groove; when the wind hood column is in an unlocked position, the wind hood column abuts against the limiting wall of the limiting groove.

15. The balance wind shield according to claim 14, characterized in that The limiting groove is configured as a notch.

16. An electronic balance, characterized in that: The electronic balance comprises a balance wind shield as described in any one of claims 1 to 15 and a balance body, wherein the balance wind shield is mounted on the balance body.

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