阅读说明：本技术 一种浮动螺纹安装式插箱 (Floating thread installation type plug box ) 是由 邓礼兵 贲安然 黄莹瑛 胡全丹 李勉 魏观祥 于 2020-04-20 设计创作，主要内容包括：本发明公开了一种浮动螺纹安装式插箱,包括框架总成和活动设置于所述框架总成内的至少两组螺纹条总成；插件面板从所述框架总成的一侧插入；所述框架总成朝向插件面板插入方向的一侧具有前挡板；所述螺纹条总成包含多个首尾相接布置的螺纹条；每个所述螺纹条上均设有螺纹孔,所述前挡板上设有与面板螺钉一一对应的安装孔,所述安装孔的孔径a略大于所述面板螺钉的外径b,面板螺钉穿过所述安装孔后与所述螺纹条中的一个螺纹孔紧配。本发明中螺纹条在横梁槽内具有活动间隙,面板螺钉在安装孔内具有活动间隙,两层活动间隙叠加组合,满足插件随机拼装时的微调空间需求,避免咬死现象的发生,同时限制在合理范围内,不会随螺纹条间隙累积使产品堆积一起。(The invention discloses a floating thread installation type plug-in box, which comprises a frame assembly and at least two groups of thread strip assemblies movably arranged in the frame assembly; a card panel inserted from one side of the frame assembly; the side of the frame assembly facing the insertion direction of the plug-in board panel is provided with a front baffle plate; the thread strip assembly comprises a plurality of thread strips which are arranged end to end; every all be equipped with the screw hole on the screw thread strip, be equipped with the mounting hole with panel screw one-to-one on the preceding baffle, the aperture a of mounting hole slightly is greater than panel screw's external diameter b, panel screw pass behind the mounting hole with a screw hole tight fit in the screw thread strip. According to the invention, the thread strips are provided with movable gaps in the cross beam grooves, the panel screws are provided with movable gaps in the mounting holes, and the two layers of movable gaps are superposed and combined, so that the requirement of fine adjustment space during random assembly of the plug-in units is met, the occurrence of seizure phenomenon is avoided, and meanwhile, the product accumulation along with the thread strip gaps is avoided within a reasonable range.)

1. The utility model provides a screw thread installation formula subrack floats which characterized in that: comprises a frame assembly (1) and at least two groups of thread strip assemblies (2) movably arranged in the frame assembly (1);

the plug-in panel (3) is inserted from one side of the frame assembly (1) and is arranged in the inner cavity of the frame assembly (1);

the side, facing the inserting direction of the plug-in panel (3), of the frame assembly (1) is provided with a front baffle (5);

screw thread strip assembly (2) contain a plurality of end to end connect the screw thread strip of arranging, every all be equipped with on the screw thread strip with panel screw (7) cooperation fixed screw hole (4), be equipped with on preceding baffle (5) with panel screw (7) one-to-one mounting hole (6), the aperture a of mounting hole (6) slightly is greater than the external diameter b of panel screw (7), panel screw (7) pass behind mounting hole (6) with a screw hole (4) tight fit in the screw thread strip.

2. The floating thread installation jack of claim 1, wherein: the relationship between the aperture a of the mounting hole (6) and the outer diameter b of the panel screw (7) is as follows: a-b is more than or equal to 0.5mm and more than or equal to 0.8 mm.

3. The floating thread installation jack of claim 1, wherein: along in the direction of insertion of plug-in components panel (3), the place ahead of preceding baffle (5) has screw thread strip accommodation space (9), every place a set of screw thread strip assembly (2) in screw thread strip accommodation space (9).

4. The floating thread installation jack of claim 1, wherein: the thread strip accommodating space (9) is internally provided with an upper groove (10) and a lower groove (11) which are clamped at two ends of the thread strip assembly (2), and the opening directions of the upper groove (10) and the lower groove (11) are both vertical to the length of the thread strip assembly (2) and the central axis of the thread hole (4).

5. The floating thread installation jack of claim 1, wherein: the frame assembly (1) comprises a shell (101) and a cross beam (102) fixed inside the shell (101), the shell (101) penetrates through along the insertion direction of the plug-in panel (3), the cross beam (102) is located behind the front baffle (5), an accommodating groove (1021) is arranged on one side, facing the front baffle (5), of the cross beam (102), and the accommodating groove (1021) and the front baffle (5) and the wall surfaces of the shell (101) located at two ends of the cross beam (102) form a thread strip accommodating space (9).

6. The floating thread installation jack of claim 5, wherein: the frame assembly (1) further comprises a guide rail plate (103) laid on the inner surface of the shell (101), a plurality of guide grooves (1031) are formed in the guide rail plate (103), the opening direction of the guide grooves (1031) is perpendicular to the inserting direction of the plug-in board (3), and the guide grooves (1031) extend along the inserting direction of the plug-in board (3).

7. The floating thread installation jack of claim 6, wherein: the thread strip assemblies (2) are provided with two groups and are respectively connected with the upper end and the lower end of the plug-in panel (3).

8. The floating thread installation jack of claim 7, wherein: a beam (102) and a guide rail plate (103) are sequentially fixed on the inner top surface and the inner bottom surface of the shell (101), and the plug-in panel (3) is inserted between the two guide grooves (1031) of the guide rail plate (103).

9. The floating thread installation jack of claim 6, wherein: the shell (101) and the guide rail plate (103) are made of galvanized steel sheet materials, and the cross beam (102) is made of aluminum materials.

10. The floating thread installation box of any one of claims 5 to 9, wherein: the front of the shell (101) is provided with a clamping portion (14) which is turned over backwards, and the cross beam (102) abuts against the rear end face of the clamping portion (14).

Technical Field

The invention relates to the technical field of power grid control protection type plug boxes, in particular to a floating thread installation type plug box.

Background

At present, the power grid control protection type plug-in box mainly has an aluminum profile frame structure, the overall shielding performance is limited, and the back plug-in installation mainly has two modes: one is to adopt movable thread strips in the section bar cross beam for installation, and the installation mode is used for the reserved space for fine adjustment when the plug-in units are combined side by side. However, due to the combination mode of a plurality of sectional type thread strips, along with factors such as the installation sequence of each plug-in unit, the gap can be accumulated to one direction of the case, so that the gap between the other set of plug-in units is larger or the plug-in units cannot be placed in the case; the other is to replace the thread strip with a fixed thread sleeve structure, which can cause the insert to lack the adjusting clearance and cause seizure.

The control protection case in the power industry has very high requirements on the whole electromagnetic shielding performance, the steel plate has high shielding performance, the treatment-free steel plate is more and more widely applied, the case shell is formed by the treatment-free steel plate, the whole shielding performance is better, but the metal plate upper threads generally adopt hole flanging or rivet pressing screw sleeves, the installation and adjustment mobility of plug-in components is not strong, the thin metal plate material is easy to change, and a complex structure is difficult to process to have higher precision. Therefore, the excellent combination form of the metal plate and the movable threaded strip has important significance for improving the performance of the control and protection case product and the mass production processing manufacturability.

Disclosure of Invention

In order to solve the technical problem that the plug-in box in the prior art is easy to cause larger clearance between plug-in components or is easy to cause seizure, the invention provides a floating thread mounting type plug-in box to solve the problem.

The technical scheme adopted by the invention for solving the technical problems is as follows: a floating thread mounting type plug box comprises a frame assembly and at least two groups of thread strip assemblies movably arranged in the frame assembly; the plug-in panel is inserted from one side of the frame assembly and is arranged in the inner cavity of the frame assembly; the side of the frame assembly facing the insertion direction of the plug-in board panel is provided with a front baffle plate; the thread strip assembly comprises a plurality of thread strips which are arranged end to end; every all be equipped with on the screw thread strip with panel screw cooperation fixed screw hole, be equipped with the mounting hole with panel screw one-to-one on the preceding baffle, the aperture a of mounting hole slightly is greater than panel screw's external diameter b, panel screw pass behind the mounting hole with a screw hole tight fit in the screw thread strip.

Preferably, the relationship between the aperture a of the mounting hole and the outer diameter b of the panel screw is as follows: a-b is more than or equal to 0.5mm and more than or equal to 0.8 mm.

Furthermore, along the direction of insertion of the plug-in board panel, a threaded strip accommodating space is arranged in front of the front baffle, and a group of threaded strip assemblies are placed in each threaded strip accommodating space.

Furthermore, an upper groove and a lower groove which are clamped at two ends of the threaded bar assembly are arranged in the threaded bar accommodating space, and the opening directions of the upper groove and the lower groove are both perpendicular to the length of the threaded bar assembly and the central axis of the threaded hole.

Furthermore, the frame assembly comprises a shell and a cross beam fixed inside the shell, the shell is penetrated along the insertion direction of the plug-in panel, the cross beam is located behind the front baffle, an accommodating groove is formed in one side, facing the front baffle, of the cross beam, and thread strip accommodating spaces are formed by the accommodating groove, the front baffle and shell wall surfaces located at two ends of the cross beam.

Furthermore, the frame assembly further comprises a guide rail plate laid on the inner surface of the shell, a plurality of guide grooves are formed in the guide rail plate, the opening direction of each guide groove is perpendicular to the insertion direction of the plug-in panel, and the guide grooves extend along the insertion direction of the plug-in panel.

Preferably, the thread strip assembly is provided with two groups, and the two groups are respectively connected with the upper end and the lower end of the plug-in panel.

Preferably, a cross beam and a guide rail plate are sequentially fixed on the inner top surface and the inner bottom surface of the shell, and the plug-in panel is inserted between the guide grooves of the two guide rail plates.

Preferably, the shell and the guide rail plate are made of galvanized steel sheets, and the cross beam is made of aluminum materials.

Furthermore, a clamping portion which is turned over backwards is arranged in front of the shell, and the cross beam is abutted to the end face of the rear side of the clamping portion.

The invention has the beneficial effects that:

(1) according to the floating thread mounting type insert box, the front baffle is arranged in front of the thread strip assembly, the front baffle is provided with the mounting hole, the panel screw penetrates through the mounting hole and then is fixed with the threaded hole, the thread strip is in the movable gap in the cross beam groove, the panel screw is in the movable gap in the mounting hole, the two layers of movable gaps are overlapped and combined to form a combined movable gap, the requirement of fine adjustment space during random assembly of inserts is met, the occurrence of seizure phenomenon is avoided, meanwhile, the floating thread mounting type insert box is limited within a reasonable range, products cannot be stacked together along with accumulation of the thread strip gap, and the floating thread mounting type insert box can be made of easily-deformed sheet metal materials, so that the shielding performance of the structure.

(2) The invention has good processing manufacturability, low processing cost and good integral shielding performance of the case, avoids metal plate processing complex structure by section mould forming, and is suitable for batch production.

(3) According to the invention, through a specially designed crossbeam structure, the thread strip assembly can be placed in the crossbeam accommodating groove, so that the thread strip can be adjusted within the internal clearance range, and meanwhile, the sheet metal guide rail plate and the shell are tightly combined.

(4) The cross beam is surrounded by the guide rail and the shell, the overall consistency is still kept on the appearance, and the application of the treatment-free steel plate is advocated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of an embodiment of a floating screw-mounted box according to the present invention;

FIG. 2 is a front view of an embodiment of a floating screw mount type of a box according to the present invention;

FIG. 3 is a right side view of an embodiment of the floating thread installation type of a box according to the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 2;

FIG. 5 is a sectional view taken along line B-B of FIG. 3;

FIG. 6 is an enlarged view at M in FIG. 1;

FIG. 7 is an enlarged view taken at N in FIG. 4;

FIG. 8 is a schematic view of the assembly of the card panel in the present invention;

FIG. 9 is a perspective view of the cross-beam of the present invention;

FIG. 10 is a cross-sectional schematic view of the beam shown in FIG. 9;

fig. 11 is a perspective view of an embodiment of the guide rail plate according to the present invention.

In the figure, 1, a frame assembly, 101, a shell, 1011, a rear baffle, 102, a cross beam, 1021, a containing groove, 103, a guide rail plate, 1031, a guide groove, 2, a threaded strip assembly, 3, a plug-in panel, 4, a threaded hole, 5, a front baffle, 6, a mounting hole, 7, a panel screw, 8, a riveting sleeve, 9, a threaded strip containing space, 10, an upper groove, 11, a lower groove, 12, a splayed guide section, 13, a stud, 14 and a clamping part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, specifically, the positional relationship with the housing 101 as a reference, the card panel 3 is inserted from the front to the rear of the housing 101, the card panel 3 is vertically inserted into the housing 101 in the direction of gravity (that is, the vertical direction), the top surface is located above the direction of gravity of the housing 101, and the bottom surface is located below the direction of gravity of the housing 101.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1-7, a floating thread installation type plug box comprises a frame assembly 1 and at least two groups of thread strip assemblies 2 movably arranged in the frame assembly 1; the plug-in panel 3 is inserted into the inner cavity of the frame assembly 1 from one side of the frame assembly 1; the frame assembly 1 is provided with a front baffle 5 at one side facing the inserting direction of the plug-in panel 3; the thread strip assembly 2 comprises a plurality of thread strips which are arranged end to end; each threaded strip is provided with a threaded hole 4 matched and fixed with a panel screw 7, the front baffle is provided with a mounting hole 6 corresponding to the panel screws 7 one to one, the aperture a of the mounting hole 6 is slightly larger than the outer diameter b of the panel screw 7, and the panel screw 7 passes through the mounting hole 6 and then is tightly matched with one threaded hole 4 in each threaded strip.

The framework assembly 1 is used for accommodating and supporting the plug-in panel 3 and is used as a connecting structure of the thread strip assemblies 2 and the plug-in panel 3, each group of thread strip assemblies 2 is used for connecting a panel screw 7 at one end of the plug-in panel 3, usually, two ends of the plug-in panel 3 in the gravity direction are respectively connected with one group of thread strip assemblies 2, when only one row of plug-in panels 3 are installed in the framework assembly 1, only one group of thread strip assemblies 2 needs to be respectively arranged at the top and the bottom of the framework assembly 1, when the plug-in panels 3 are arranged in a multi-row mode, more than two groups of thread strip assemblies 2 need to be arranged, and preferably, the number of the thread strip assemblies 2 is twice of the number of the.

The thread strip assembly 2 is movably arranged in the frame assembly 1, meanwhile, the thread strip assembly 2 is formed by connecting a plurality of thread strips end to end (as shown in figure 5, the thread strip assembly 2 is composed of 6 thread strips, a vertical dividing line is arranged between the adjacent thread strips), the end-to-end connection only represents the end-to-end connection on the position, no substantive connection relation exists between the adjacent thread strips, therefore, each thread strip is arranged in the frame assembly 1, especially in the length direction of the thread strip assembly 2, each thread strip has a certain moving space, the front baffle is a fixed structure, the mounting hole 6 on the front baffle plays a role in pre-positioning a panel screw 7, when the panel screw 7 passes through the mounting hole 6, the panel screw 7 has certain moving space in the radial direction of the mounting hole 6, so that each panel plug-in is limited in a reasonable range, and products cannot be stacked together along with the accumulation of gaps of the thread strips.