Three-screw fixing machine case

Abstract

The utility model relates to a three screw fixed machine case belongs to computer equipment technical field, solved the existing technology in the upper shell and lower shell of machine case between only use screw and fix, lead to the machine case all around a large number of screw exposure, influence appearance and user's use experience and the expansion space of machine case appearance design is limited problem. A kind of three screw fixed machine case including upper shell, lower shell and screw;The first side and third side of upper shell include slide bar, second side includes convex column, fourth side is provided with screw;Correspondingly, lower shell and the corresponding side of first side and third side include sliding slot, the side corresponding to second side of lower shell includes recess, the side corresponding to fourth side of lower shell is provided with screw hole;Screw has three. Realized only in the side application of three screws of upper shell, it is helpful to improve the aesthetic degree of appearance and user's use experience, also provide greater expansion space for machine case appearance design.

Description

Technical Field

[0001] This utility model relates to the field of computer equipment technology, and in particular to a three-screw fixed chassis. Background Technology

[0002] In the existing technology, the upper and lower shells of the chassis are fixed together using only screws. In order to pass the GJB151B electromagnetic compatibility test, the screw spacing is usually 60 mm, resulting in a large number of screws (15 to 25 screws) being exposed around the chassis, which affects the appearance, user experience and limits the expansion space of chassis appearance design. Utility Model Content

[0003] Based on the above analysis, this utility model aims to provide a three-screw fixed chassis to solve the problem that in the prior art, the upper and lower shells of the chassis are fixed only with screws, resulting in a large number of screws being exposed around the chassis, affecting the appearance and user experience, and limiting the expansion space of the chassis appearance design.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] A three-screw fixed chassis includes a lower shell, a conductive rubber pad, a cover plate, an upper shell, and screws; the conductive rubber pad is disposed between the cover plate and the lower shell, and the upper shell is located above the cover plate.

[0006] The upper shell includes a first side, a second side, a third side, and a fourth side. The first side and the third side are arranged opposite to each other, as are the second side and the fourth side. Each of the first and third sides includes a sliding rod, the second side includes a protruding post, and the fourth side is provided with a screw. Correspondingly, the lower shell also includes four sides. The two sides of the lower shell corresponding to the first and third sides of the upper shell each include a sliding groove, which corresponds to the sliding rod. The side of the lower shell corresponding to the second side of the upper shell includes a groove, which corresponds to the protruding post. The side of the lower shell corresponding to the fourth side of the upper shell has a screw hole, which corresponds to a screw.

[0007] There are three screws and three screw holes.

[0008] Furthermore, the slide includes a first branch and a second branch that are perpendicular to each other. The first branch is perpendicular to the plane where the upper shell is located, and the second branch is parallel to the plane where the upper shell is located. The first end of the first branch is the opening of the slide, and the second end of the first branch is connected to the first end of the second branch. When the slide rod moves from the opening of the slide to the second end of the second branch, the upper shell moves to a position where the chassis can be locked with screws.

[0009] Furthermore, the first side and the third side also include a boss, and the slide rod is disposed on the boss; the conductive pads of the first side and the third side are higher than the conductive pads of the second side and the fourth side, so that the conductive pads of the first side and the third side can avoid the boss.

[0010] Furthermore, the first and third sides of the upper shell are each provided with three sliding rods, and the second side of the upper shell is provided with three protruding posts; correspondingly, the two sides of the lower shell corresponding to the first and third sides of the upper shell each include three sliding grooves, and the sides of the lower shell corresponding to the second side of the upper shell each include three grooves.

[0011] Furthermore, the chassis also includes a positioning indicator mechanism, which includes a push rod assembly, a spring, a top column assembly, and a cam assembly.

[0012] Furthermore, the push rod assembly includes a push rod, the end of which, away from the slide rod, includes a first inclined surface; the top column assembly includes a top column, the end of which, away from the upper shell, includes a second inclined surface; the movement of the push rod in the first direction can push the top column to move in the second direction through the cooperation between the first inclined surface and the second inclined surface, the first direction being perpendicular to the second direction.

[0013] Furthermore, the cam assembly includes a cylindrical cam, the cylindrical cam including a cam groove extending along the circumferential and axial directions of the cylindrical cam;

[0014] The top post assembly also includes a driven post. The top post moves along the second direction, causing the driven post to move along the second direction. One end of the driven post is inserted into the cam groove of the cylindrical cam. As the driven post moves along the second direction, the cylindrical cam rotates.

[0015] Furthermore, the cam assembly also includes a pointer disposed at the top of the cylindrical cam, which protrudes from the upper housing, and the pointer is located outside the upper housing.

[0016] Furthermore, when the push rod is not pushed, the slide rod is in the first position, the push rod is at the first end, the top column is at the lowest end, and the pointer on the cylindrical cam is at the first end;

[0017] When the slide rod reaches the second end of the second branch of the slide groove, the slide rod is in the second position, the push rod is in the second end, the top column is in the highest position, the pointer on the cylindrical cam is in the second end, and the chassis can be locked by the screw.

[0018] Furthermore, an indicator mark is provided on the top surface of the upper shell, and when the pointer points to the indicator mark, the pointer is at the second end.

[0019] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0020] 1. This three-screw-fixed chassis includes an upper shell, a lower shell, and screws. The first and third sides of the upper shell include sliding rods, the second side includes a protruding post, and the fourth side is provided with a screw. Correspondingly, the lower shell has sliding grooves on its corresponding sides to the first and third sides, a recess on its corresponding side to the second side, and screw holes on its corresponding side to the fourth side. There are three screws. Compared to using 15 to 25 screws to fix the upper shell around its perimeter, this invention uses only three screws on one side of the upper shell, significantly reducing the number of screws used, improving the aesthetics and user experience, and providing greater design flexibility for the chassis.

[0021] 2. The three-screw fixed chassis also includes a positioning indicator mechanism, which includes a push rod assembly, a spring, a top column assembly, and a cam assembly. By observing the direction of the pointer of the positioning indicator mechanism, it can be determined whether the slide rod has slid to the second end of the second branch of the slide groove, and whether the upper shell has moved to a position where the chassis can be locked by screws. This is beneficial for locking the chassis with screws and also for protecting components such as the protruding column and the slide rod, thereby improving the service life of the chassis.

[0022] 3. The three-screw fixed chassis has an indicator mark on the top surface of the upper shell. When the pointer points to the indicator mark, the slide rod is located at the second end of the second branch of the slide groove. By observing the relative position of the pointer and the indicator mark, it can be determined whether the slide rod has slid to the second end of the second branch of the slide groove and whether the upper shell has moved to a position where the chassis can be locked with screws. This is beneficial for locking the chassis with screws and also helps to protect components such as protrusions and slide rods, thereby improving the service life of the chassis.

[0023] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0024] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0025] Figure 1 This is an exploded view of the three-screw fixed chassis of this utility model;

[0026] Figure 2 A schematic diagram of the sliding groove provided on the lower shell;

[0027] Figure 3 A schematic diagram of the slide bar installed on the upper shell;

[0028] Figure 4 This is an assembly drawing of the slide rail and slide rod.

[0029] Figure 5 This is an assembly drawing of the protruding post and groove;

[0030] Figure 6 for Figure 5 A magnified view of a portion of region A in the middle;

[0031] Figure 7 This is a schematic diagram of the slide bar positioning indicator mechanism when it is in the first position.

[0032] Figure 8 This is a schematic diagram of the slider positioning indicator mechanism when it is in the second position.

[0033] Figure 9 This is a diagram showing a pointer and indicator marker.

[0034] Figure label:

[0035] 1-Lower shell; 101-Slide groove; 1011-First branch; 1012-Second branch; 102-Groove; 2-Conductive pad; 3-Cover plate; 4-Upper shell; 401-Boss; 402-Slide rod; 403-Protrusion; 5-Screw;

[0036] 6-Position indication mechanism; 601-Push rod assembly; 6011-Push rod; 6012-Limit post; 6013-Spring fixing post; 602-Spring; 603-Top post assembly; 6031-Top post; 6032-Driven post; 6033-Sleeve; 604-Cam assembly; 6041-Cylindrical cam; 60411-Cam groove; 6042-Pointer; 6043-Bearing; 6044-Bearing fixing post;

[0037] 7-Push rod hole; 8-Side wall; 9-Indicator mark. Detailed Implementation

[0038] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0039] Example 1

[0040] like Figure 1 As shown, the chassis includes a lower shell 1, a conductive pad 2, a cover plate 3, an upper shell 4, and screws 5. The conductive pad 2 is disposed between the cover plate 3 and the lower shell 1, and the upper shell 4 is located above the cover plate 3. The upper shell 4 includes a first side, a second side, a third side, and a fourth side, with the first and third sides facing each other, and the second and fourth sides facing each other. Wherein, as... Figure 3 As shown, both the first and third sides include a slide bar 402, and both sides also include a boss 401. The slide bar 402 is mounted on the boss 401. The second side includes a protrusion 403, and the fourth side is provided with a screw 5. Correspondingly, the lower shell 1 also includes four sides, as shown... Figure 2 As shown, the two sides of the lower shell 1 corresponding to the first and third sides of the upper shell 4 each include a sliding groove 101, which corresponds to the sliding rod 402; the side of the lower shell 1 corresponding to the second side of the upper shell 4 includes a groove 102, which corresponds to the protrusion 403. Figure 5 and Figure 6 (The assembly diagram of groove 102 and protrusion 403 is shown). Screw holes are opened on the corresponding sides of the fourth side of the lower shell 1 and the upper shell 4, and the screw holes correspond to the screws 5.

[0041] Conductive pad 2 can be an aluminum-plated silver conductive pad.

[0042] like Figure 4As shown, the slide 101 is L-shaped and includes two mutually perpendicular first branches 1011 and second branches 1012. The first branch 1011 is perpendicular to the plane where the upper shell 4 is located, and the second branch 1012 is parallel to the plane where the upper shell 4 is located. The first end of the first branch 1011 is the opening of the slide 101, and the second end of the first branch 1011 is connected to the first end of the second branch 1012. When the slide rod 402 moves from the opening of the slide 101 to the second end of the second branch 1012, the upper shell 4 moves to a position where the chassis can be locked by the screws 5.

[0043] The conductive pads 2 on the first and third sides are higher than the conductive pads 2 on the second and fourth sides, which allows the conductive pads 2 on the first and third sides to avoid the boss 401.

[0044] Optionally, the first and third sides of the upper shell 4 are each provided with three sliding rods 402, the second side of the upper shell 4 is provided with three protrusions 403, and the fourth side of the upper shell 4 is provided with three screws 5; correspondingly, the two sides of the lower shell 1 corresponding to the first and third sides of the upper shell 4 each include three sliding grooves 101, the sides of the lower shell 1 corresponding to the second side of the upper shell 4 include three grooves 102, and the sides of the lower shell 1 corresponding to the fourth side of the upper shell 4 are provided with three screw holes.

[0045] Compared to the use of 15 to 25 screws 5 to fix the upper shell 4 around its perimeter, this utility model only uses three screws 5 on one side of the upper shell 4, which greatly reduces the use of screws, helps to improve the aesthetics of the appearance and the user experience, and also provides greater room for expansion in the design of the chassis appearance.

[0046] Example 2

[0047] Another specific embodiment of this utility model is as follows: Figure 7 and Figure 8 As shown, based on Embodiment 1, the chassis also includes a positioning indicator mechanism 6, which is used to indicate the second end of the second branch 1012 of the sliding groove 101 of the slide bar 402, that is, the upper shell 4 moves to a position where the chassis can be locked by the screw 5.

[0048] Since the slide bar 402 and the slide groove 101 are inside the chassis, it is difficult to observe whether the slide bar 402 has moved to the second end of the second branch 1012 of the slide groove 101. If the slide bar 402 has not moved to the second end of the second branch 1012 of the slide groove 101, tightening the chassis with screw 5 may easily cause incomplete tightening or damage to components (such as the protrusion 403, slide bar 402, etc.), which is not conducive to improving the service life of the chassis.

[0049] The positioning indicator mechanism 6 includes a push rod assembly 601, a spring 602, a top column assembly 603, and a cam assembly 604.

[0050] The push rod assembly 601 includes a push rod 6011, a limiting post 6012, and a spring fixing post 6013. The limiting post 6012 is disposed on the peripheral wall of the push rod 6011, which helps to reduce the possibility of the push rod 6011 disengaging from its operating position. The spring fixing post 6013 is disposed at the end of the push rod 6011 away from the slide groove 101, and is used to fix the spring 602.

[0051] Spring 602 is connected between spring fixing post 6013 and side wall 8, and spring 602 is used to reset push rod 6011.

[0052] The top post assembly 603 includes a top post 6031, a driven post 6032, and a sleeve 6033. One end of the sleeve 6033 is fixed to the bottom surface of the upper shell 4, and a cylindrical groove is formed on the sleeve 6033. One end of the driven post 6032 is connected to the side wall of the top post 6031, and the other end extends out from the cylindrical groove.

[0053] The cam assembly 604 includes a cylindrical cam 6041, a pointer 6042, a bearing 6043, and a bearing retainer 6044. The cylindrical cam 6041 protrudes from the upper housing 4 and includes a cam groove 60411 distributed on the peripheral wall of the cylindrical cam 6041. The cam groove 60411 extends both circumferentially and axially along the cylindrical cam 6041, optionally covering 180 degrees circumferentially. The pointer 6042 is located at the top of the cylindrical cam 6041, i.e., outside the upper housing 4. The inner peripheral wall of the bearing 6043 is connected to a portion of the outer peripheral wall of the cylindrical cam 6041. One end of the bearing retainer 6044 is connected to the outer peripheral wall of the bearing 6043, and the other end is connected to the side wall 8. The bearing retainer 6044 is used to fix the bearing 6043.

[0054] A push rod hole 7 is provided on the side wall of the second branch of the slide groove 101 away from the first branch. One end of the push rod 6011 can contact the slide rod 402, and the other end extends out of the push rod hole 7.

[0055] The end of push rod 6011 away from slide rod 402 includes a first inclined surface. The end of top post 6031 away from upper shell 4 includes a second inclined surface. Push rod 6011 can push top post 6031 through the cooperation between the first and second inclined surfaces, i.e. Figure 7 and Figure 8 The first direction movement of the push rod 6011 (left and right movement in the figure) can be converted into the second direction movement of the top column 6031 (up and down movement in the figure), with the first direction perpendicular to the second direction.

[0056] The top post 6031 moves along the second direction (moving up and down in the figure), causing the driven post 6032 on the top post 6031 to move along with the top post 6031 in the second direction (moving up and down in the figure). One end of the driven post 6032 is inserted into the cam groove 60411 of the cylindrical cam 6041. As the driven post 6032 moves along the second direction (moving up and down in the figure), the cylindrical cam 6041 rotates clockwise and counterclockwise, causing the pointer 6042 on the top of the cylindrical cam 6041 to rotate clockwise and counterclockwise.

[0057] When implementing, such as Figure 7 As shown, when push rod 6011 is not pushed, i.e., in the first position, push rod 6011 is at the first end (left end in the figure), top post 6031 is at the lowest end, and pointer 6042 on cylindrical cam 6041 is at the first end (left end in the figure). Figure 8 As shown, when the slide bar 402 reaches the second end of the second branch 1012 of the slide groove 101, that is, when it is in the second position, the push rod 6011 is at the second end (right end in the figure), the top column 6031 is at the highest end, and the pointer 6042 on the cylindrical cam 6041 is at the second end (right end in the figure). At this time, the chassis can be locked by the screw 5.

[0058] In this embodiment, by observing the direction of the pointer 6042 of the position indicator mechanism 6, it can be determined whether the slide bar 402 has slid to the second end of the second branch 1012 of the slide groove 101, and whether the upper shell 4 has moved to a position where the chassis can be locked by the screw 5. This is beneficial for locking the chassis by the screw 5, and also for protecting components such as the protrusion 403 and the slide bar 402, thereby improving the service life of the chassis.

[0059] Optionally, an indicator mark 9 is provided on the top surface of the upper shell 4. For example... Figure 9 As shown, when pointer 6042 points to indicator mark 9, pointer 6042 is at the second end (right end in the figure), and at this time, slide bar 402 is located at the second end of the second branch 1012 of slide groove 101. When pointer 6042 moves away from indicator mark 9, pointer 6042 is at the first end (left end in the figure), and at this time, push rod 6011 is not pushed, and slide bar 402 is away from the second end of the second branch 1012 of slide groove 101.

[0060] Using the positioning indicator mechanism 6, by observing the relative position of the pointer 6042 and the indicator mark 9, it is helpful for the user to determine whether the slide bar 402 has slid to the second end of the second branch 1012 of the slide groove 101, and whether the upper shell 4 has moved to a position where the chassis can be locked by the screw 5. This is beneficial for locking the chassis by the screw 5, and also for protecting components such as the protrusion 403 and the slide bar 402, thereby improving the service life of the chassis.

[0061] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-screw fixed chassis, characterized in that, The chassis includes a lower shell, a conductive pad, a cover plate, an upper shell, and screws; the conductive pad is disposed between the cover plate and the lower shell, and the upper shell is located above the cover plate; The upper shell includes a first side, a second side, a third side, and a fourth side. The first side and the third side are arranged opposite to each other, as are the second side and the fourth side. Each of the first and third sides includes a sliding rod, the second side includes a protruding post, and the fourth side is provided with a screw. Correspondingly, the lower shell also includes four sides. The two sides of the lower shell corresponding to the first and third sides of the upper shell each include a sliding groove, which corresponds to the sliding rod. The side of the lower shell corresponding to the second side of the upper shell includes a groove, which corresponds to the protruding post. The side of the lower shell corresponding to the fourth side of the upper shell has a screw hole, which corresponds to a screw. There are three screws and three screw holes.

2. The three-screw fixed chassis according to claim 1, characterized in that, The slide includes a first branch and a second branch that are perpendicular to each other. The first branch is perpendicular to the plane where the upper shell is located, and the second branch is parallel to the plane where the upper shell is located. The first end of the first branch is the opening of the slide, and the second end of the first branch is connected to the first end of the second branch. When the slide rod moves from the opening of the slide to the second end of the second branch, the upper shell moves to a position where the chassis can be locked with screws.

3. The three-screw fixed chassis according to claim 1, characterized in that, The first side and the third side also include a boss, and the slide rod is disposed on the boss; the conductive pads of the first side and the third side are higher than the conductive pads of the second side and the fourth side, so that the conductive pads of the first side and the third side can avoid the boss.

4. The three-screw fixed chassis according to claim 1, characterized in that, The first and third sides of the upper shell are each provided with three sliding rods, and the second side of the upper shell is provided with three protruding posts; correspondingly, the two sides of the lower shell corresponding to the first and third sides of the upper shell each include three sliding grooves, and the sides of the lower shell corresponding to the second side of the upper shell each include three grooves.

5. The three-screw fixed chassis according to claim 2, characterized in that, It also includes a positioning indicator mechanism, which comprises a push rod assembly, a spring, a top column assembly, and a cam assembly.

6. The three-screw fixed chassis according to claim 5, characterized in that, The push rod assembly includes a push rod, the end of which, away from the slide rod, includes a first inclined surface; the top column assembly includes a top column, the end of which, away from the upper shell, includes a second inclined surface; the movement of the push rod in a first direction can push the top column to move in a second direction through the cooperation between the first inclined surface and the second inclined surface, the first direction being perpendicular to the second direction.

7. The three-screw fixed chassis according to claim 6, characterized in that, The cam assembly includes a cylindrical cam, the cylindrical cam including a cam groove extending along the circumferential and axial directions of the cylindrical cam; The top post assembly also includes a driven post. The top post moves along the second direction, causing the driven post to move along the second direction. One end of the driven post is inserted into the cam groove of the cylindrical cam. As the driven post moves along the second direction, the cylindrical cam rotates.

8. The three-screw fixed chassis according to claim 7, characterized in that, The cam assembly also includes a pointer disposed on top of the cylindrical cam, which protrudes from the upper housing, and the pointer is located outside the upper housing.

9. The three-screw fixed chassis according to claim 8, characterized in that, When the push rod is not pushed, the slide rod is in the first position, the push rod is at the first end, the top column is at the lowest end, and the pointer on the cylindrical cam is at the first end; When the slide rod reaches the second end of the second branch of the slide groove, the slide rod is in the second position, the push rod is in the second end, the top column is in the highest position, the pointer on the cylindrical cam is in the second end, and the chassis can be locked by the screw.

10. The three-screw fixed chassis according to claim 9, characterized in that, The top surface of the upper shell is provided with an indicator mark, and when the pointer points to the indicator mark, the pointer is at the second end.

Images