Drawing connecting rod structure

Abstract

The utility model discloses a drawing connecting rod structure, which is applied to a rack-mounted server and comprises a connecting rod, a pressing plate and a plurality of rolling bearings, a plurality of screw columns are symmetrically arranged on the two sides of the pressing plate, the rolling bearings are embedded in the outer cylindrical surfaces of the screw columns, screws are screwed into the screw columns so that the pressing plate can be fixedly connected with a machine case shell of the rack-mounted server, the connecting rod is arranged between the pressing plate and the machine case shell in a penetrating mode, and the connecting rod is connected with a front panel of the rack-mounted server. The front panel is driven to be opened and closed on the case shell; and in the pulling and moving process of the connecting rod, the upper edge and the lower edge of the connecting rod are in contact with the outer cylindrical surfaces of the rolling bearings. The push-pull connecting rod structure has the characteristics of compact structure, small size, convenience in installation, high stability and the like, and overcomes the defects of unsmooth hand feeling, serious abrasion of contact surfaces of parts, larger and larger fit clearance between the parts and the like due to the adoption of a sliding friction mode in the conventional push-pull connecting rod structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connecting rod structure technical field, concretely relates to a pull-out connecting rod structure. BACKGROUND

[0002] In the broadcast television, audio and video transmission industry, many rack servers will be provided with movable pull-out connecting rod structures to facilitate maintenance or replacement of internal parts. Most of the existing pull-out connecting rod structures rivet a screw column or a positioning pin on the equipment shell, open a long slot in the center of the connecting rod, and set the slot of the connecting rod on the outer cylindrical surface of the screw column or the positioning pin, and the connecting rod contacts the bottom surface of the shell to form a guide, and the pull-out is realized by sliding.

[0003] In addition, there is also a pull-out connecting rod structure in the prior art, which rivets two screw columns in the vertical direction above the equipment shell, and the connecting rod is guided by the contact between the outer edge of the connecting rod and the cylindrical surface of the screw column, and the pull-out is also realized by sliding. A pressing plate is also needed to be arranged between the two screw columns in the vertical direction to prevent the connecting rod from falling.

[0004] In summary, the existing pull-out connecting rod structure has the following shortcomings:

[0005] (1) The user experience is poor due to the sliding friction between the movable parts;

[0006] (2) The connecting rod can be offset in angle up and down due to too few fixed points, and the pull-out process is not smooth enough;

[0007] (3) The sliding friction can cause damage to the surface coating of the parts, which not only affects the appearance, but also causes oxidation and other phenomena on the surface of the parts, affecting the service life of the parts;

[0008] (4) With the increase of the working time of the pull-out connecting rod, the wear will become more and more serious, and the fitting gap between the parts will become larger and larger. UTILITY MODEL CONTENTS

[0009] The utility model solves the technical problem of the prior art, and provides a pull-out connecting rod structure with compact structure, small size, convenient installation and high stability.

[0010] In order to solve the above technical problems, the utility model adopts the technical scheme that:

[0011] A pull rod structure applied in a rack-mounted server, comprising a connecting rod, a pressing plate and a plurality of rolling bearings; a plurality of screw columns are symmetrically arranged on both sides of the pressing plate, the rolling bearings are nested on the outer cylindrical surface of the screw columns, and screws are screwed into the screw columns to achieve the connection and fixation of the pressing plate and the cabinet shell of the rack-mounted server; the connecting rod is arranged between the pressing plate and the cabinet shell, the connecting rod is connected with the front panel of the rack-mounted server and drives the front panel to open and close on the cabinet shell; during the pulling movement of the connecting rod, the upper edge and the lower edge of the connecting rod are in contact with the outer cylindrical surface of the plurality of rolling bearings.

[0012] As a further improvement of the utility model, one end of the connecting rod is provided with a connecting hole, and the connecting hole is used for connecting the front panel of the rack-mounted server and driving the front panel to open and close on the cabinet shell.

[0013] As a further improvement of the utility model, the other end of the connecting rod is provided with a limiting hook, and the side of the pressing plate is provided with a groove; when the connecting rod is pulled to the limit position, the limiting hook is buckled in the groove to limit the movement of the connecting rod.

[0014] As a further improvement of the utility model, one side of the connecting rod is provided with a stepped surface, and the stepped surface is close to the connecting hole.

[0015] As a further improvement of the utility model, a plurality of convex blocks are arranged on the pressing plate at equal intervals, and the convex blocks are in contact with the connecting rod.

[0016] As a further improvement of the utility model, the screw column is riveted on the pressing plate.

[0017] As a further improvement of the utility model, the bottom edge of the pressing plate is flush with the bottom plate of the cabinet shell.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The pull rod structure of the utility model realizes the connection and fixation of the pressing plate and the cabinet shell of the rack-mounted server by symmetrically arranging a plurality of screw columns on both sides of the pressing plate and screwing the screws into the screw columns, which is simple and reliable; the rolling bearings are nested on the outer cylindrical surface of the screw columns, the connecting rod is arranged between the pressing plate and the cabinet shell, and the front panel is driven to open and close on the cabinet shell by the connecting rod; during the pulling movement of the connecting rod, the upper edge and the lower edge of the connecting rod are in contact with the outer cylindrical surface of the plurality of rolling bearings, and the rolling friction mainly exists between the rolling bearings and the connecting rod, which effectively reduces the mutual abrasion between parts and avoids the oxidation caused by the damage to the surface coating of the parts to shorten the service life; at the same time, the plurality of rolling bearings can also support the connecting rod to prevent the connecting rod from being pulled smoothly due to the upward and downward angular deviation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure principle schematic view of the pull link structure in the embodiment of the utility model;

[0021] Figure 2 It is the side view structure principle schematic view of the pull link structure in the embodiment of the utility model;

[0022] Figure 3 It is the whole structure principle schematic view of the pull link structure in the embodiment of the utility model from another perspective;

[0023] Figure 4 It is the sectional view structure principle schematic view of the pull link structure in the embodiment of the utility model;

[0024] Figure 5 It is the arrangement principle schematic view of the link in the case shell in the embodiment of the utility model;

[0025] Legend: 100, case shell; 1, link; 2, pressing plate; 21, recess; 3, rolling bearing; 4, screw column; 5, connecting hole; 6, limiting hook; 7, screw; 8, convex bundle; 9, step surface. DETAILED DESCRIPTION

[0026] The utility model will be further described below in conjunction with the drawings and specific preferred embodiments, but it is not therefore to limit the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0028] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features with "first" and "second" can explicitly or implicitly include one or more features, and in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0029] EMBODIMENT

[0030] AsFigure 1 、 Figure 2 and Figure 4 As shown in the utility model discloses a pull link structure, pull link structure is applied to rack server, including connecting rod 1, pressing plate 2 and multiple rolling bearings 3. Along the movement direction of connecting rod 1, four screw columns 4 are riveted on the both sides of pressing plate 2 symmetrically, and four rolling bearings 3 are nested on the outer cylindrical surface of corresponding screw column 4 respectively, after installing pressing plate 2 to the inside of the case body 100 of rack server, the screw 7 is screwed into the inside of the side portion of case body 100 and screw column 4, to realize the connection and fixation of pressing plate 2 and the case body 100 of rack server. Connecting rod 1 is arranged between pressing plate 2 and case body 100, can prevent connecting rod 1 from falling during pulling process, and connecting rod 1 is connected with the front panel of rack server, and drives the front panel to open and close on case body 100. In the process of pulling and moving connecting rod 1, the upper edge and the lower edge of connecting rod 1 are in contact with the outer cylindrical surface of two rolling bearings 3 respectively.

[0031] As Figure 1 shown, connecting rod 1 moves left and right during pulling, and rolling bearing 3 will do circular motion due to the influence of friction, so that the surface wear of connecting rod 1 is greatly reduced, the surface of the part is protected, and the hand feeling of pulling is improved. Moreover, there are two contact points on the same side of connecting rod 1, and there are four contact points on the upper and lower sides of connecting rod 1, so that connecting rod 1 will not be offset in the up-down direction, so that the smoothness during pulling is ensured, and the user experience is improved.

[0032] In other embodiments, a metal cylinder with the same size as rolling bearing 3 can be used instead of rolling bearing 3, and appropriate lubricating oil is used, so that the metal cylinder rolls on screw column 4, and also can realize circular motion with connecting rod 1, and achieve the same purpose. Moreover, compared with rolling bearing 3, it has cost advantage, and also can hang a component with greater weight at the front end of connecting rod 1.

[0033] In other embodiments, a POM (race steel) plastic cylinder with the same size as rolling bearing 3 can be used instead of rolling bearing 3, and appropriate lubricating oil is used, so that the plastic cylinder rolls on screw column 4, and also can realize circular motion with connecting rod 1, and achieve the same purpose. Compared with the scheme of rolling bearing 3 and metal cylinder, it has cost performance.

[0034] As Figure 1 shown, the front end of connecting rod 1 is provided with connecting hole 5, and connecting hole 5 is used for connecting the front panel of rack server and driving the front panel to open and close on case body 100. Figure 3 As Figure 3 shown, the rear end of connecting rod 1 is provided with limiting hook 6, and the side portion of pressing plate 2 is provided with recess 21, when connecting rod 1 is pulled to the limit position, limiting hook 6 is buckled in recess 21, to limit the movement of connecting rod 1, to avoid that connecting rod 1 is pulled out completely.

[0035] like Figure 5 As shown, a stepped surface 9 is provided on one side of the connecting rod 1, resulting in a certain step difference on the connecting rod 1, and the stepped surface 9 is close to the connecting hole 5. After the pull-out connecting rod structure is installed on both inner sides of the chassis housing 100, it ensures a stable connection between the connecting hole 5 and the front panel of the rack server, without taking up too much installation space inside the chassis housing 100.

[0036] like Figure 4 As shown, since the front end of the connecting rod 1 will be attached to components such as the front panel of the rack-mounted server and needs to bear a certain weight, in order to prevent this weight from pressing on the four screw posts 4, the bottom edge of the pressure plate 2 is extended to be flush with the bottom plate of the chassis housing 100. This allows for better utilization of the supporting force of the bottom surface of the chassis housing 100, making the entire pull-out connecting rod structure more stable. Multiple protrusions 8 are evenly spaced on the pressure plate 2, and the protrusions 8 contact the connecting rod 1. The protrusions 8 can eliminate the gap caused by the inconsistent thickness between the rolling bearing 3 and the connecting rod 1, and also reduce the contact area between the connecting rod 1 and the pressure plate 2, preventing large-area contact and excessive friction.

[0037] In this embodiment, four screw posts 4 are symmetrically arranged on both sides of the pressure plate 2. Screws 7 are screwed into the screw posts 4, thus achieving a simple and reliable connection between the pressure plate 2 and the rack server chassis 100. Rolling bearings 3 are nested on the outer cylindrical surface of the screw posts 4, and a connecting rod 1 is inserted between the pressure plate 2 and the chassis 100. The connecting rod 1 drives the front panel to open and close on the chassis 100, allowing for convenient replacement of the service boards inside the chassis 100. Furthermore, during the pulling and moving of the connecting rod 1, both the upper and lower edges of the connecting rod 1 contact the outer cylindrical surfaces of the multiple rolling bearings 3. The rolling friction between the rolling bearings 3 and the connecting rod 1 is primarily rolling friction, which, compared to sliding friction, effectively reduces mutual wear between parts and avoids damage to the surface coating of parts, preventing oxidation and shortening of service life. Simultaneously, the multiple rolling bearings 3 also support the connecting rod 1, preventing vertical angular displacement of the connecting rod 1 and resulting in uneven pulling.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pull link structure, characterized by, The pull rod structure is applied to a rack server, comprising a connecting rod (1), a pressing plate (2) and a plurality of rolling bearings (3); the pressing plate (2) is symmetrically provided with a plurality of screw columns (4) on both sides, the rolling bearings (3) are nested on the outer cylindrical surface of the screw columns (4), the screw columns (4) are screwed with screws (7) inside, so as to realize the connection and fixation of the pressing plate (2) and the cabinet shell (100) of the rack server, the connecting rod (1) is arranged between the pressing plate (2) and the cabinet shell (100), the connecting rod (1) is connected with the front panel of the rack server and drives the front panel to open and close on the cabinet shell (100); during the pulling and moving of the connecting rod (1), the upper edge and the lower edge of the connecting rod (1) are in contact with the outer cylindrical surface of the plurality of rolling bearings (3).

2. The pull link structure of claim 1, wherein One end of the connecting rod (1) is provided with a connecting hole (5), the connecting hole (5) is used for connecting the front panel of the rack server and driving the front panel to open and close on the cabinet shell (100).

3. The pull link structure of claim 2, wherein The other end of the connecting rod (1) is provided with a limiting hook (6), the side of the pressing plate (2) is provided with a groove (21), when the connecting rod (1) is pulled to the limit position, the limiting hook (6) is buckled in the groove (21), so as to limit the movement of the connecting rod (1).

4. The pull link structure of claim 2, wherein One side of the connecting rod (1) is provided with a stepped surface (9), the stepped surface (9) is close to the connecting hole (5).

5. The puller link structure according to any one of claims 1 to 4, characterized in that, A plurality of convex blocks (8) are equidistantly arranged on the pressing plate (2), the convex blocks (8) are in contact with the connecting rod (1).

6. The puller link structure according to any one of claims 1 to 4, characterized by The screw column (4) is riveted on the pressing plate (2).

7. The puller link structure according to any one of claims 1 to 4, characterized by The bottom edge of the pressing plate (2) is flush with the bottom plate of the cabinet shell (100).

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