A plug-in unit for rectangular plug-in and installation method

Abstract

The present invention discloses a plug-in unit for a rectangular plug-in, comprising: a hollow rectangular plug-in; a support base arranged at the bottom of the rectangular plug-in; a compensation component for shielding or filling the gap between the plug-in end face of the rectangular plug-in and the upper surface of the bottom plate of the support base; and a threaded connector for fixing the rectangular plug-in to the support base. The beneficial effects of adopting the above technical solution are: according to the problem that the plug-in unit is fixed in position and cannot be adjusted, and the gap formed after adjustment affects the decorative effect, the plug-in is fixed with a threaded connection after being plugged in, which is conducive to later adjustment and replacement; in addition, the gap formed by the adjustment of the plug-in can be filled or shielded by the compensation component, so that the adjustment of the plug-in does not affect the decorative effect of the decorative parts of the plug-in unit, which has good practical value and economic significance.

Description

Technical Field

[0001] The invention relates to the technical field of building decoration, and in particular to a plug-in unit for a rectangular plug-in unit and an installation method. Background Art

[0002] The healthy and rapid development of the decoration industry has driven the technological progress of many related industries, especially the connection structure between decorative parts. As we all know, decorative materials are mainly used for decoration, with the characteristics of light weight and beautiful appearance. Therefore, decoration materials rarely use heavy-load connection methods, but mostly use light connection methods, among which plug-in connection is one of the important light connection methods and is widely used.

[0003] In the prior art, the plug-in units are different due to the different plug-ins. According to the external structure, the plug-ins are divided into circular plug-ins and rectangular plug-ins. For rectangular plug-ins, plug-in connection is used and then other connection methods are used to fix them together, such as threaded fastening. For rectangular plug-ins made of metal, they are generally further fixed by welding. Although these two auxiliary fixing methods can meet the strength requirements for the plug-in, there is a problem that the relative position is fixed and cannot be adjusted after the connection is fixed. If an error occurs, it cannot be adjusted or replaced. Therefore, this technical field requires a plug-in unit that is quick to install, easy to disassemble, and flexible to adjust. Summary of the invention

[0004] In order to solve the technical problem that the relative position of the plug-in unit is fixed and cannot be adjusted, and it is difficult to adjust and replace it later, the technical solution of the present invention is as follows:

[0005] A plug-in unit for a rectangular plug-in, comprising: a rectangular plug-in, a hollow rectangular tube, divided into a plug-in section close to a plug-in end face and a working section other than the plug-in section, wherein a through hole is provided on the side of the plug-in section; a support base, arranged at the bottom of the rectangular plug-in, comprising a bottom plate for fixing and carrying the rectangular plug-in; a compensation component, arranged at the upper part of the support base, for shielding or filling a gap between the plug-in end face of the rectangular plug-in and the upper surface of the bottom plate of the support base, comprising a compensation sleeve, wherein the compensation sleeve is arranged on the support base; a threaded connector, for fixing the rectangular plug-in on the support base.

[0006] The beneficial effects of adopting the above technical solution are: in the design process, full consideration is given to the problems faced by the plug-in unit, such as fixed position, inability to adjust, and the gap formed after adjustment affecting the decorative effect. Firstly, the plug-in is plugged in and then fixed with a threaded connection, which is conducive to later adjustment and replacement; more importantly, the gap formed by the adjustment of the plug-in can be filled or blocked by a compensation component, so that the adjustment of the plug-in does not affect the decorative effect of the decorative parts of the plug-in unit at all, and it is convenient to load and unload, with good practical value and economic significance.

[0007] As a further improvement of the present invention, the support base also includes a support plate, which is provided with a waist-shaped notch in a vertical direction, at least two of the support plates are fixed in parallel to the bottom plate, and the waist-shaped notches on the support plates are aligned, and the bottom plate is provided with an annular groove, and the shape and arrangement position of the annular groove match the compensation sleeve; the compensation component also includes an elastic connecting member, which is evenly arranged in the annular groove, and the lower end of the elastic connecting member is fixedly connected to the bottom plate groove, and the upper end is connected to the bottom surface of the compensation sleeve, the shape of the compensation sleeve is consistent with the rectangular plug-in, and the compensation sleeve has a highest position and a lowest position. When the compensation sleeve is in the lowest position due to the applied force, the upper end surface of the compensation sleeve is not lower than the upper surface of the bottom plate, and when the compensation sleeve is in the highest position without the applied force, the lower end surface of the compensation sleeve is not higher than the upper surface of the bottom plate.

[0008] The beneficial effects of adopting the above technical solution are: the setting of the waist-shaped notch is conducive to the adjustment of the plug-in along the length direction of the waist-shaped notch; in addition, the compensation component is set to be consistent with the shape of the rectangular plug-in, and can be elastically raised and lowered along the annular groove on the bottom plate of the base. When the plug-in is adjusted, the gap formed by the plug-in adjustment is automatically filled under the elastic force of the elastic connecting piece, thereby avoiding the exposure of the internal structure of the decorative component and affecting the decorative effect.

[0009] As a further improvement of the present invention, the elastic connecting member is a spring, the annular groove on the base plate is divided into four linear grooves which are perpendicular to each other, and each linear groove is provided with at least two springs, which are symmetrically arranged along the center line of the linear groove.

[0010] The beneficial effect of adopting the above technical solution is that the elastic connecting parts are symmetrically arranged in a straight groove, and at least two parts are arranged, which helps to keep the bottom of the compensation sleeve under uniform force and smooth lifting and lowering.

[0011] As a further improvement of the present invention, the through hole on the rectangular plug-in is a threaded through hole, the threaded connector is divided into a head and a screw, a polygonal groove is provided on the end face of the screw, the head of the threaded connector is located on the inner side of the rectangular plug-in, and the screw end face of the polygonal groove faces outward.

[0012] The beneficial effect of adopting the above technical solution is: a groove is set on the screw end face of the threaded connector and the head of the threaded connector is set inside the rectangular plug-in, which facilitates adjustment of the threaded connector from the screw direction outside the rectangular plug-in.

[0013] As a further improvement of the present invention, the number of the support plates is consistent with the number of the side plates of the rectangular plug-in, the waist-shaped notch on the support plate is centrally arranged, and the distance between the lowest point of the waist-shaped notch and the upper surface of the base plate is not greater than the distance between the lowest point of the threaded through hole of the rectangular plug-in and the end face of the plug-in section.

[0014] The beneficial effect of adopting the above technical solution is: for a rectangular plug-in, the number of support plates can be one pair of two pieces, or two pairs of four pieces. When the number of support plates is consistent with the number of side plates of the rectangular plug-in, that is, two pairs of four pieces, the plug-in is not only supported more firmly, but also smoother during the adjustment process.

[0015] As a further improvement of the present invention, the inner shape of the compensation sleeve is consistent with the outer shape of the rectangular plug-in, and is fixed on the supporting base. The compensation sleeve is provided with a threaded through hole, and the rectangular plug-in connection section is provided with a U-shaped notch matching the threaded through hole of the compensation sleeve, and the U-shaped notch opens downward. The threaded connector is divided into a head and a screw, and a polygonal groove is provided on the end face of the screw. The head of the threaded connector is located on the inner side of the U-shaped notch of the rectangular plug-in, and the end face of the screw including the polygonal groove faces outward through the threaded through hole of the compensation sleeve.

[0016] The beneficial effect of adopting the above technical solution is that the plug-in sleeve is arranged inside the compensation sleeve, so as to cover the gap formed by the adjustment of the plug-in. In this way, the bottom plate of the base does not need to be grooved, the structure is simple, and the base processing cost can be effectively saved.

[0017] As a further improvement of the present invention, the distance from the lowest point of the bottom of the U-shaped notch of the rectangular plug-in to the plug-in end face is not less than the distance between the highest point of the threaded through hole of the compensation sleeve and the upper surface of the base plate, and is not greater than the distance between the center point of the threaded through hole of the compensation sleeve and the upper surface of the compensation sleeve.

[0018] The beneficial effect of adopting the above technical solution is that the setting length of the U-shaped notch of the rectangular plug-in is adapted to the height of the compensating sleeve, which can avoid the risk of the notch being exposed due to the U-shaped notch being too long, or the problem that the rectangular plug-in cannot be plugged into the bottom due to the U-shaped notch being too short.

[0019] As a further improvement of the present invention, an inner support plate is provided inside the rectangular plug-in, and a threaded hole is provided in the middle of the inner support plate. The plug-in unit also includes an adjustment component, and the adjustment component includes an adjustment knob, a change-direction transmission gear group and a threaded transmission column. The adjustment knob is arranged on the side of the compensation sleeve, and the change-direction transmission gear group includes two mutually meshing helical gears and a gear support rod supporting the gears, wherein one of the helical gears is connected to the adjustment knob through the gear support rod, and the lower end of the other helical gear is vertically fixed to the upper surface of the base plate through the gear support rod, and the upper end is connected and fixed to the threaded transmission column, and the other end of the threaded transmission column passes through the threaded hole of the inner support plate.

[0020] The beneficial effect of adopting the above technical solution is that the introduction of the adjustment component provides another method of adjusting the lifting of the rectangular plug-in, that is, using the bevel gear to change the direction of the drive screw to rotate, thereby driving the lifting of the rectangular plug-in, eliminating the additional manpower cooperation in the aforementioned adjustment process. The purpose of lifting the rectangular plug-in can be achieved by simply turning the adjustment knob on the outside of the rectangular plug-in, which can significantly save the manpower required for adjusting the plug-in unit. For heavier plug-ins, the advantages of this adjustment method are more obvious.

[0021] As a further improvement of the present invention, the adjusting knob is arranged directly below the threaded through hole of the compensation sleeve, and a polygonal recessed groove is provided at the center of the adjusting knob.

[0022] The beneficial effect of adopting the above technical solution is that the adjusting knob is arranged directly below the threaded through hole of the central compensation sleeve, and is arranged by utilizing the U-shaped notch of the rectangular plug-in. There is no need to open a separate notch on the rectangular plug-in, thus saving the processing cost of the rectangular plug-in. The polygonal recessed groove of the adjusting knob can prevent the knob from protruding from the outer surface of the compensation sleeve and affecting the decorative effect.

[0023] A method for installing a rectangular plug-in unit comprises the following steps:

[0024] Step (1): Mark the installation position of the rectangular plug-in according to the drawing, and mark the position with a line;

[0025] Step (ii): installing the compensation assembly on the support base, and installing the support base to a designated position according to the marked position;

[0026] Step (iii): plugging the rectangular plug-in into the support base, and ensuring that the compensation component completely covers or fills the gap between the rectangular plug-in and the support base;

[0027] Step (four): After all rectangular plug-ins are initially plugged in, the plug-in depth of individual rectangular plug-ins is adjusted according to a predetermined height and a secondary fixation is performed to complete the plug-in installation of the rectangular plug-ins.

[0028] The beneficial effects of adopting the above technical solution are: standardizing the installation process for installation can significantly improve the installation efficiency, reduce idle work, rework and the like, and make the installation quality more uniform and stable, and not be affected by the technical level of the installers.

[0029] A rectangular plug-in unit is installed using any one of the plug-in units described in the above technical solutions.

[0030] The beneficial effect of adopting the above technical solution is that the rectangular plug-in adopts any one of the plug-in units in the above technical solution to achieve the purpose of quick installation, convenient disassembly and flexible adjustment, effectively solving the problem that the installation position of the traditional plug-in unit is relatively fixed and cannot be adjusted. If an error occurs, it cannot be adjusted or replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 The front view of the plug-in unit of the rectangular plug-in of the present invention is shown in FIG. Figure 1 .

[0033] Figure 2 It is a top view schematic diagram of the plug-in unit of the rectangular plug-in unit of the present invention.

[0034] Figure 3 The front view of the plug-in unit of the rectangular plug-in of the present invention is shown in FIG. Figure 2 .

[0035] Figure 4 It is a schematic cross-sectional view of the plug-in unit of the rectangular plug-in unit of the present invention in the AA direction.

[0036] The corresponding parts represented by the numbers in the figure are as follows:

[0037] Rectangular plug-in 1; inner support plate 11; support base 2; bottom plate 21; support plate 22; compensation component 3; (filling type) compensation sleeve 31; elastic connector 32; (shielding type) compensation sleeve 33; threaded connector 4; adjustment component 5; adjustment knob 51; direction-changing transmission gear set 52; bevel gear 521; gear support rod 522; threaded transmission column 53. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0039] In order to achieve the purpose of the present invention, the technical solution provided by the present invention is:

[0040] like Figure 1-2 As shown, a plug-in unit for a rectangular plug-in comprises: a rectangular plug-in 1, a hollow rectangular tube, divided into a plug-in section close to a plug-in end face and a working section other than the plug-in section, and a through hole is provided on the side of the plug-in section; a support base 2, arranged at the bottom of the rectangular plug-in 1, comprising a bottom plate 21, for fixing and carrying the rectangular plug-in 1; a compensation component 3, arranged on the upper part of the support base 2, for shielding or filling the gap between the plug-in end face of the rectangular plug-in 1 and the upper surface of the support base bottom plate 21, comprising a compensation sleeve 31, and the compensation sleeve 31 is arranged on the support base 2; a threaded connector 4, for fixing the rectangular plug-in 1 on the support base 2.

[0041] The beneficial effects of adopting the above technical solution are: in the design process, full consideration is given to the problems faced by the plug-in unit, such as fixed position, inability to adjust, and the gap formed after adjustment affecting the decorative effect. Firstly, the plug-in is plugged in and then fixed with a threaded connection, which is conducive to later adjustment and replacement; more importantly, the gap formed by the adjustment of the plug-in can be filled or blocked by a compensation component, so that the adjustment of the plug-in does not affect the decorative effect of the decorative parts of the plug-in unit at all, and it is convenient to load and unload, with good practical value and economic significance.

[0042] In other embodiments of the present invention, Figure 1-2 As shown, the support base 2 also includes a support plate 22, which is provided with a waist-shaped notch in a vertical direction. At least two support plates 22 are fixed in parallel on the bottom plate 21, and the waist-shaped notches on the support plates 22 are aligned. An annular groove is provided on the bottom plate 21, and the shape and arrangement position of the annular groove match the compensation sleeve 31; the compensation component 3 also includes an elastic connector 32, which is evenly arranged in the annular groove, and the lower end of the elastic connector 32 is fixedly connected to the groove of the bottom plate 21, and the upper end is connected to the bottom surface of the compensation sleeve 31. The shape of the compensation sleeve 31 is consistent with the rectangular plug-in 1. The compensation sleeve 31 has a highest position and a lowest position. When the compensation sleeve 31 is in the lowest position due to the applied force, the upper end surface of the compensation sleeve 31 is not lower than the upper surface of the bottom plate 21. When the compensation sleeve 31 is not subjected to the applied force and is in the highest position, the lower end surface of the compensation sleeve 31 is not higher than the upper surface of the bottom plate 21.

[0043] The beneficial effects of adopting the above technical solution are: the setting of the waist-shaped notch is conducive to the adjustment of the plug-in along the length direction of the waist-shaped notch; in addition, the compensation component is set to be consistent with the shape of the rectangular plug-in, and can be elastically raised and lowered along the annular groove on the bottom plate of the base. When the plug-in is adjusted, the gap formed by the plug-in adjustment is automatically filled under the elastic force of the elastic connecting piece, thereby avoiding the exposure of the internal structure of the decorative component and affecting the decorative effect.

[0044] In other embodiments of the present invention, Figure 1 As shown, the elastic connecting member 32 is a spring, and the annular groove on the bottom plate 21 is divided into four linear grooves which are perpendicular to each other, and each linear groove is provided with at least two springs, which are symmetrically arranged along the center line of the linear groove.

[0045] The beneficial effect of adopting the above technical solution is that the elastic connecting parts are symmetrically arranged in a straight groove, and at least two parts are arranged, which helps to keep the bottom of the compensation sleeve under uniform force and smooth lifting and lowering.

[0046] In other embodiments of the present invention, Figure 2 As shown, the through hole on the rectangular plug-in 1 is a threaded through hole, the threaded connector 4 is divided into a head and a screw, a polygonal groove is provided on the end face of the screw, the head of the threaded connector is located on the inner side of the rectangular plug-in 1, and the screw end face of the polygonal groove faces outward.

[0047] The beneficial effect of adopting the above technical solution is: a groove is set on the screw end face of the threaded connector and the head of the threaded connector is set inside the rectangular plug-in, which facilitates adjustment of the threaded connector from the screw direction outside the rectangular plug-in.

[0048] In other embodiments of the present invention, Figure 2 As shown, the number of support plates 22 is consistent with the number of side plates of the rectangular plug-in 1, the waist-shaped notch on the support plate 22 is centrally arranged, and the distance between the lowest point of the waist-shaped notch and the upper surface of the bottom plate 21 is not greater than the distance between the lowest point of the threaded through hole of the rectangular plug-in 1 and the end face of the plug-in section.

[0049] The beneficial effect of adopting the above technical solution is: for a rectangular plug-in, the number of support plates can be one pair of two pieces, or two pairs of four pieces. When the number of support plates is consistent with the number of side plates of the rectangular plug-in, that is, two pairs of four pieces, the plug-in is not only supported more firmly, but also smoother during the adjustment process.

[0050] In other embodiments of the present invention, Figure 3As shown, the inner shape of the compensation sleeve 33 is consistent with the outer shape of the rectangular plug-in 1, and is fixed on the supporting base 2. A threaded through hole is provided on the compensation sleeve 33, and the plug-in section of the rectangular plug-in 1 is provided with a U-shaped notch matching the threaded through hole of the compensation sleeve 33, and the U-shaped notch opens downward. The threaded connector 4 is divided into a head and a screw, and a polygonal groove is provided on the end face of the screw. The head of the threaded connector 4 is located on the inner side of the U-shaped notch of the rectangular plug-in 1, and the end face of the screw including the polygonal groove faces outward through the threaded through hole of the compensation sleeve 33.

[0051] The beneficial effect of adopting the above technical solution is that the plug-in sleeve is arranged inside the compensation sleeve, so as to cover the gap formed by the adjustment of the plug-in. In this way, the bottom plate of the base does not need to be grooved, the structure is simple, and the base processing cost can be effectively saved.

[0052] In other embodiments of the present invention, Figure 3 As shown, the distance from the lowest point of the bottom of the U-shaped notch of the rectangular plug-in 1 to the plug-in end face is not less than the distance between the highest point of the threaded through hole of the compensation sleeve 33 and the upper surface of the base plate 21, and is not greater than the distance between the center point of the threaded through hole of the compensation sleeve 33 and the upper surface of the compensation sleeve 33.

[0053] The beneficial effect of adopting the above technical solution is that the setting length of the U-shaped notch of the rectangular plug-in is adapted to the height of the compensating sleeve, which can avoid the risk of the notch being exposed due to the U-shaped notch being too long, or the problem that the rectangular plug-in cannot be plugged into the bottom due to the U-shaped notch being too short.

[0054] In other embodiments of the present invention, Figure 4 As shown, an inner support plate 11 is provided inside the rectangular plug-in 1, and a threaded hole is provided in the middle of the inner support plate 11. The plug-in unit also includes an adjustment component 5, which includes an adjustment knob 51, a direction-changing transmission gear set 52 and a threaded transmission column 53. The adjustment knob 51 is arranged on the side of the compensation sleeve 33. The direction-changing transmission gear set 52 includes two mutually meshing bevel gears 521 and a gear support rod 522 for supporting the gears. One of the bevel gears 521 is connected to the adjustment knob 51 through the gear support rod 522, and the lower end of the other bevel gear 521 is vertically fixed to the upper surface of the base plate 21 through the gear support rod 522, and the upper end is connected and fixed to the threaded transmission column 53, and the other end of the threaded transmission column 53 passes through the threaded hole of the inner support plate 11.

[0055] The beneficial effect of adopting the above technical solution is that the introduction of the adjustment component provides another method of adjusting the lifting of the rectangular plug-in, that is, using the bevel gear to change the direction of the drive screw to rotate, thereby driving the lifting of the rectangular plug-in, eliminating the additional manpower cooperation in the aforementioned adjustment process. The purpose of lifting the rectangular plug-in can be achieved by simply turning the adjustment knob on the outside of the rectangular plug-in, which can significantly save the manpower required for adjusting the plug-in unit. For heavier plug-ins, the advantages of this adjustment method are more obvious.

[0056] In other embodiments of the present invention, Figure 3 As shown, the adjusting knob 51 is arranged directly below the threaded through hole of the compensation sleeve 33 , and a polygonal recessed groove is arranged at the center of the adjusting knob 51 .

[0057] The beneficial effect of adopting the above technical solution is that the adjusting knob is arranged directly below the threaded through hole of the central compensation sleeve, and is arranged by utilizing the U-shaped notch of the rectangular plug-in. There is no need to open a separate notch on the rectangular plug-in, thus saving the processing cost of the rectangular plug-in. The polygonal recessed groove of the adjusting knob can prevent the knob from protruding from the outer surface of the compensation sleeve and affecting the decorative effect.

[0058] In some other embodiments of the present invention, a method for installing a rectangular plug-in unit comprises the following steps:

[0059] Step (a): Mark the installation position of the rectangular plug-in 1 according to the drawing, and mark the position by drawing lines;

[0060] Step (ii): installing the compensation assembly 3 on the support base 2, and installing the support base 2 to the designated position according to the marked position;

[0061] Step (three): plug the rectangular plug-in 1 into the support base 2, and ensure that the compensation component 3 completely covers or fills the gap between the rectangular plug-in 1 and the support base 2;

[0062] Step (four): After all the rectangular plug-ins 1 are initially plugged in, the plug-in depth of individual rectangular plug-ins 1 is adjusted according to a predetermined height and a secondary fixation is performed to complete the plug-in installation of the rectangular plug-ins 1.

[0063] The beneficial effects of adopting the above technical solution are: standardizing the installation process for installation can significantly improve the installation efficiency, reduce idle work, rework and the like, and make the installation quality more uniform and stable, and not be affected by the technical level of the installers.

[0064] In other embodiments of the present invention, a rectangular plug-in is installed using the plug-in unit of any one of the above technical solutions.

[0065] The beneficial effect of adopting the above technical solution is that the rectangular plug-in adopts any one of the plug-in units in the above technical solution to achieve the purpose of quick installation, convenient disassembly and flexible adjustment, effectively solving the problem that the installation position of the traditional plug-in unit is relatively fixed and cannot be adjusted. If an error occurs, it cannot be adjusted or replaced.

[0066] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in unit for a rectangular plug-in, characterized in that: include: The rectangular plug-in (1) is a hollow rectangular tube, which is divided into a plug-in section close to the plug-in end face and a working section other than the plug-in section, and a through hole is provided on the side surface of the plug-in section; A supporting base (2), arranged at the bottom of the rectangular plug-in (1), comprising a bottom plate (21) for fixing and carrying the rectangular plug-in (1); A compensation component (3) is arranged on the upper part of the support base (2) to cover or fill the gap between the plug-in end surface of the rectangular plug-in (1) and the upper surface of the support base bottom plate (21), comprising a compensation sleeve (31), wherein the compensation sleeve (31) is arranged on the support base (2); A threaded connector (4) for fixing the rectangular insert (1) on the supporting base (2); The support base (2) further comprises a support plate (22), the support plate (22) being provided with a waist-shaped notch in a vertical direction, at least two of the support plates (22) being fixed in parallel on the bottom plate (21), and the waist-shaped notches on the support plates (22) being aligned, and an annular groove being provided on the bottom plate (21), and the shape and arrangement position of the annular groove matching those of the compensation sleeve (31); the compensation assembly (3) further comprises an elastic connector (32), the elastic connector (32) being evenly arranged in the annular groove, and the elastic connector (32) ) the lower end is fixedly connected to the groove of the bottom plate (21), and the upper end is connected to the bottom surface of the compensation sleeve (31); the shape of the compensation sleeve (31) is consistent with the rectangular plug-in (1); the compensation sleeve (31) has a highest position and a lowest position; when the compensation sleeve (31) is in the lowest position due to the applied force, the upper end surface of the compensation sleeve (31) is not lower than the upper surface of the bottom plate (21); when the compensation sleeve (31) is in the highest position without the applied force, the lower end surface of the compensation sleeve (31) is not higher than the upper surface of the bottom plate (21); The inner shape of the compensating sleeve (31) is consistent with the outer shape of the rectangular plug-in (1), and is fixed on the supporting base (2). The compensating sleeve (31) is provided with a threaded through hole. The plug-in section of the rectangular plug-in (1) is provided with a U-shaped notch matching the threaded through hole of the compensating sleeve (31), and the U-shaped notch opens downward. The threaded connector (4) is divided into a head and a screw rod. A polygonal groove is provided on the end face of the screw rod. The head of the threaded connector (4) is located on the inner side of the U-shaped notch of the rectangular plug-in (1), and the end face of the screw rod including the polygonal groove faces outward through the threaded through hole of the compensating sleeve (31).

2. The plug-in unit for a rectangular plug-in according to claim 1, characterized in that The elastic connecting member (32) is a spring, and the annular groove on the bottom plate (21) is divided into four straight grooves that are perpendicular to each other, and each straight groove is provided with at least two springs, and the springs are arranged symmetrically along the center line of the straight groove.

3. The plug-in unit for a rectangular plug-in according to claim 2, characterized in that The through hole on the rectangular plug-in (1) is a threaded through hole, and the threaded connector (4) is divided into a head and a screw, and a polygonal groove is provided on the end face of the screw. The head of the threaded connector (4) is located on the inner side of the rectangular plug-in (1), and the screw end face of the polygonal groove faces outward.

4. The plug-in unit for a rectangular plug-in according to claim 3, characterized in that The number of the support plates (22) is consistent with the number of the side plates of the rectangular plug-in (1), the waist-shaped notch on the support plate (22) is centrally arranged, and the distance between the lowest point of the waist-shaped notch and the upper surface of the bottom plate (21) is not greater than the distance between the lowest point of the threaded through hole of the rectangular plug-in (1) and the end face of the plug-in section.

5. The plug-in unit for a rectangular plug-in according to claim 1, characterized in that The distance from the lowest point of the bottom of the U-shaped notch of the rectangular plug-in (1) to the plug-in end face is not less than the distance between the highest point of the threaded through hole of the compensation sleeve (31) and the upper surface of the base plate, and is not greater than the distance between the center point of the threaded through hole of the compensation sleeve (31) and the upper surface of the compensation sleeve (31).

6. The plug-in unit for a rectangular plug-in according to claim 5, characterized in that The rectangular plug-in (1) is provided with an inner support plate (11) inside, and a threaded hole is provided in the middle of the inner support plate (11). The plug-in unit also includes an adjustment component (5), and the adjustment component (5) includes an adjustment knob (51), a direction-changing transmission gear set (52) and a threaded transmission column (53). The adjustment knob (51) is arranged on the side of the compensation sleeve (31). The direction-changing transmission gear set (52) includes two mutually meshing bevel gears (521) and a gear support rod (522) for supporting the gears, wherein one bevel gear (521) is connected to the adjustment knob (51) through the gear support rod (522), and the lower end of the other bevel gear (521) is vertically fixed to the upper surface of the base plate (21) through the gear support rod (522), and the upper end is connected and fixed to the threaded transmission column (53), and the other end of the threaded transmission column (53) passes through the threaded hole of the inner support plate (11).

7. The plug-in unit for a rectangular plug-in according to claim 6, characterized in that The adjusting knob (51) is arranged directly below the threaded through hole of the compensating sleeve (31), and a polygonal recessed groove is arranged at the center of the adjusting knob (51).

8. A method for installing a rectangular plug-in unit, characterized in that: The method for installing a plug-in unit for a rectangular plug-in according to any one of claims 1 to 7 comprises the following steps: Step (1): Marking the installation position of the rectangular plug-in (1) according to the drawing, and marking the position with a line; Step (ii): installing the compensation component (3) on the support base (2), and installing the support base (2) to a designated position according to the marked position; Step (three): plugging the rectangular plug-in (1) into the support base (2), and ensuring that the compensation component (3) completely covers or fills the gap between the rectangular plug-in (1) and the support base (2); Step (four): After all the rectangular plug-ins (1) are initially plugged in, the plug-in depth of each rectangular plug-in (1) is adjusted according to a predetermined height and a secondary fixation is performed to complete the plug-in installation of the rectangular plug-in (1).

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