Constant force spring assembly structure for lifting support and assembly method

Abstract

The present application belongs to the technical field of lifting support, and discloses a constant force spring assembly structure and assembly method for a lifting support. The constant force spring assembly structure comprises a fixing member, a sliding member and a cover plate assembly. The sliding member is slidably arranged on the fixing member, and the fixing member is provided with a mounting opening. The constant force spring comprises a fixed part and a coil spring part. The fixed part is fixedly connected with the sliding member, and the coil spring part is opposite to the mounting opening. The cover plate assembly is detachably buckled at the mounting opening, and comprises a cover plate and a spring support seat. The cover plate assembly has a pre-installation position and a fastening position. When the cover plate assembly moves from the pre-installation position to the fastening position, the spring support seat pushes the coil spring part away from the fixed part to pre-tighten the constant force spring. When the constant force spring is assembled, the fixed part is first installed on the sliding member, and the fixing member is connected with the sliding member. At this time, the constant force spring is not pre-tightened. Then, the fixing member and the sliding member are driven to slide relative to each other to confirm whether the sliding is smooth. Subsequently, the cover plate assembly is installed to pre-tighten the constant force spring, and the operation is more labor-saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lifting support, in particular to a constant force spring assembly structure and method for lifting support. BACKGROUND

[0002] The lifting support can be used to support display boards or displays, and has the function of providing the display or display board with adjustable height, so that the display or display board can be positioned at a height comfortable for users to watch.

[0003] Taking a display as an example, the gravity of the display is large. In order to balance the gravity of the display and enable the display to be stopped at any height position, a constant force spring is usually used to provide a pulling force balanced with the gravity of the display. Specifically, the lifting support includes a fixed part and a sliding part, the fixed part and the sliding part are connected by a sliding block and a sliding rail, the display can be installed on the sliding part, and the constant force spring is installed between the fixed part and the sliding part. During the lifting of the sliding part relative to the fixed part, the constant force spring is stretched. The pulling force of the constant force spring is basically constant during the stretching process, which can better balance and match the display with constant gravity, and realize the stop of the height position of the display during lifting.

[0004] In the prior art, the assembly structure of the constant force spring is relatively complex, the operation steps during assembly are cumbersome, and the operation space during installation of the constant force spring is limited, causing inconvenience in installation. In addition, in the prior art, the fixed part and the sliding part are connected by a sliding block and sliding rail mechanism, and the constant force spring is installed and pre-tightened at this time. At this time, if the sliding part is pushed up and down to confirm the sliding smoothness, the assembly personnel will find it difficult to push the sliding part against the elastic force of the constant force spring, and thus it is impossible to test whether the sliding part slides smoothly relative to the fixed part.

[0005] Therefore, there is an urgent need for a constant force spring assembly structure and method for lifting support to solve the above problems. SUMMARY

[0006] The present application aims to provide a constant force spring assembly structure and method for lifting support, which can simplify the assembly steps of the constant force spring, and the constant force spring can be installed and pre-tightened after confirming the sliding smoothness.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] On the one hand, a constant force spring assembly structure for lifting support is provided, which includes a fixed part, a sliding part and a cover plate assembly.

[0009] The sliding member is slidably arranged on the fixed member, the fixed member is provided with a mounting opening, the constant force spring comprises a fixed part and a coil spring part, the fixed part is fixedly connected with the sliding member, and the coil spring part faces the mounting opening;

[0010] The cover plate assembly is detachably buckled at the mounting opening, and comprises a cover plate and a spring support seat arranged on the cover plate;

[0011] The cover plate assembly has a pre-installation position and a fastening position, when the cover plate assembly is moved from the pre-installation position to the fastening position, the spring support seat pushes the coil spring part away from the fixed part to pre-tighten the constant force spring.

[0012] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the application, the spring support seat is provided with a containing groove, the coil spring part is clamped into the containing groove, and the containing groove is arc-shaped.

[0013] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the application, a plurality of rows of the constant force springs are arranged on the sliding member in the vertical direction, and one spring support seat is arranged corresponding to each row of the constant force springs;

[0014] The cover plate assembly further comprises a first support and a second support, and the first support and the second support are both used for mounting the spring support seat;

[0015] The first support is fixedly arranged on the cover plate, the lowermost spring support seat is mounted on the first support, the second support is detachably connected to the cover plate, and one or more second supports are arranged above the first support.

[0016] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the application, the first support and the second support are both provided with a first positioning hole and a second positioning hole, and the first positioning hole and the second positioning hole are diagonally arranged;

[0017] The spring support seat is diagonally provided with a first positioning column and a second positioning column, the first positioning column is in plug-in fit with the first positioning hole, and the second positioning column is in plug-in fit with the second positioning hole;

[0018] The first positioning column and the second positioning column have the same diameter or different diameters.

[0019] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the application, a counterbore is arranged on the bottom wall of the containing groove, a first fastener is arranged in the counterbore, and the first fastener is connected with the first support or the second support.

[0020] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the present application, the second support comprises a connecting plate and a bearing plate connected vertically, and the spring support base is connected to the bearing plate;

[0021] The connecting plate is provided with a plurality of third positioning holes, and the cover plate is provided with a plurality of third positioning columns which are inserted into the third positioning holes one by one;

[0022] The connecting plate and the cover plate are locked and fixed by a second fastener;

[0023] The cover plate is provided with a positioning convex strip, and the connecting plate is arranged on the positioning convex strip at the connection with the bearing plate.

[0024] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the present application, the second support comprises a connecting plate and a bearing plate connected vertically, and the spring support base is connected to the bearing plate;

[0025] The sliding part is provided with a spring positioning column, the fixed part is provided with a spring positioning hole, the spring mounting piece is provided with a mounting positioning hole, and the spring positioning column is inserted into the spring positioning hole and the mounting positioning hole;

[0026] The locking piece can penetrate the spring mounting piece, the fixed part, and be connected with the sliding part.

[0027] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the present application, the fixed part is recessed with a mounting groove at the edge of the mounting port, the cover plate is provided with a first convex platform on the side facing the fixed part, the spring support base is connected to the first convex platform, the first convex platform is embedded in the mounting port, the cover plate is embedded in the mounting groove, and the outer side surface of the cover plate is flush with the outer side surface of the fixed part.

[0028] As a preferred scheme of the constant force spring assembly structure for the lifting support provided by the present application, the bottom of the mounting groove is further provided with a limiting groove, the cover plate is provided with a second convex platform on the side facing the fixed part, the second convex platform is located below the first convex platform, and the second convex platform can be clamped into the limiting groove.

[0029] On the other hand, a constant force spring assembly method is provided, which is applied to the constant force spring assembly structure as described above, and comprises the following steps:

[0030] S1, the fixed part of the constant force spring is mounted on the sliding part, and the fixed part is connected with the sliding part in sliding mode;

[0031] S2, drive the fixed part and the sliding part to slide relative to each other, and confirm whether the sliding smoothness meets the design requirement;

[0032] S3, assemble the cover plate assembly;

[0033] S4, place the cover plate assembly in the pre-installation position, and make the spring support seat contact with the constant force spring;

[0034] S5, push the cover plate assembly from the pre-installation position to the fastening position, so that the spring support seat pushes the constant force spring to be pre-tightened;

[0035] S6, lock the cover plate assembly on the fixed part.

[0036] The beneficial effects of the present application are:

[0037] The present application provides a constant force spring assembly structure and assembly method for a lifting support. The spring support seat on the cover plate assembly can cooperate with the constant force spring, and push the coil spring part to stretch to generate a pre-tightening force. When the constant force spring is assembled, first, the fixed part of the constant force spring is installed on the sliding part, and the fixed part and the sliding part are connected in sliding mode. At this time, the sliding part can slide relative to the fixed part, but the constant force spring is not pre-tightened. Then, the fixed part and the sliding part are driven to slide relative to each other to confirm whether the sliding smoothness meets the design requirement. Once the constant force spring is pre-tightened, the internal elastic force is equivalent to the gravity of the display. Therefore, if the constant force spring is pre-tightened when the sliding smoothness is confirmed, a larger elastic force needs to be overcome to drive the fixed part and the sliding part to slide relative to each other. However, in the present application, the sliding smoothness of the fixed part and the sliding part is confirmed without the interference of the constant force spring, and the elastic force of the constant force spring does not need to be overcome, so the operation is more labor-saving. After confirming the sliding smoothness, the cover plate assembly is assembled, and the assembled cover plate assembly is placed in the pre-installation position to make the spring support seat contact with the constant force spring. Then, the cover plate assembly is pushed from the pre-installation position to the fastening position. During this process, the spring support seat pushes the coil spring part to move away from the fixed part to pre-tighten the constant force spring, so that the constant force spring has an elastic force equivalent to the gravity of the display. Finally, the cover plate assembly is locked on the fixed part to complete the installation and pre-tightening of the constant force spring. Thereafter, the fixed part is installed on the frame of the lifting support, and the display is installed on the sliding part. The height position of the display can be adjusted at will by sliding the display up and down, and the display can be stopped at any height position and will not fall. The constant force spring assembly structure provided by the present application can simplify the assembly steps of the constant force spring, and the constant force spring can be installed and pre-tightened after confirming the sliding smoothness of the fixed part and the sliding part, so the operation is simple and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is the isometric view of the constant force spring assembly structure for the lifting support provided by the present application;

[0039] Figure 2 is an exploded schematic view of the constant force spring assembly structure for the lifting support provided by the embodiment of the present application;

[0040] Figure 3 is a first installation process diagram of the constant force spring provided by the embodiment of the present application;

[0041] Figure 4 is a second installation process diagram of the constant force spring provided by the embodiment of the present application; Figure 3

[0042] Figure 5 is a third installation process diagram of the constant force spring provided by the embodiment of the present application;

[0043] Figure 6 is a fourth installation process diagram of the constant force spring provided by the embodiment of the present application;

[0044] Figure 7 is a fourth installation process diagram of the constant force spring provided by the embodiment of the present application;

[0045] Figure 8 is an isometric view of the cover plate assembly provided by the embodiment of the present application;

[0046] Figure 9 is an exploded schematic view of the cover plate assembly provided by the embodiment of the present application;

[0047] Figure 10 is an isometric view of the spring support seat provided by the embodiment of the present application;

[0048] Figure 11 is an exploded schematic view of the spring mounting piece and the constant force spring provided by the embodiment of the present application.

[0049] in the figure:

[0050] 1, fixing member; 2, sliding member; 3, cover plate assembly; 4, spring mounting piece;

[0051] 11, mounting opening; 12, mounting groove; 13, limiting groove;

[0052] 21, spring positioning column; 22, third fixing hole;

[0053] 31, cover plate; 32, spring support seat; 33, first support; 34, second support;

[0054] 311, third positioning column; 312, positioning protrusion; 313, first boss; 314, second boss;

[0055] ​321, accommodating groove; 322, first positioning column; 323, second positioning column; 324, counterbore; 325, groove; 326, connecting rib;

[0056] 331, first positioning hole; 332, second positioning hole;

[0057] 341, connecting plate; 342, bearing plate;

[0058] 3411, third positioning hole; 3412, connecting hole;

[0059] 41, mounting positioning hole; 42, first fixing hole;

[0060] 51, guide rail; 52, sliding block;

[0061] 100, constant force spring; 101, fixed part; 102, coiled spring part; 1011, spring positioning hole; 1012, second fixing hole. DETAILED DESCRIPTION

[0062] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0063] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0064] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0065] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and other orientation or position relationships are based on the orientation or position relationships shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0066] As shown in Figure 1 and Figure 2 , the present embodiment provides a constant force spring assembly structure for an elevating support, for assembling a constant force spring 100. The constant force spring assembly structure comprises a fixing member 1, a sliding member 2, and a cover plate assembly 3.

[0067] Wherein, referring to Figure 2 , Figure 3 and Figure 4 , the sliding member 2 is slidably arranged on the fixing member 1, the fixing member 1 is provided with a mounting port 11, the constant force spring 100 comprises a fixed part 101 and a coil spring part 102, the fixed part 101 is fixedly connected with the sliding member 2, and the coil spring part 102 is opposite to the mounting port 11; the cover plate assembly 3 is detachably buckled at the mounting port 11, and comprises a cover plate 31 and a spring support seat 32 arranged on the cover plate 31, the spring support seat 32 is used for supporting the coil spring part 102 of the constant force spring 100; the cover plate assembly 3 has a pre-installation position and a fastening position at the mounting port 11, when the cover plate assembly 3 is moved from the pre-installation position to the fastening position, the spring support seat 32 pushes the coil spring part 102 away from the fixed part 101 to pre-tighten the constant force spring 100.

[0068] In the constant force spring assembly structure provided by the present embodiment, the spring support seat 32 on the cover plate assembly 3 can cooperate with the constant force spring 100 and push the coil spring part 102 to stretch to generate a pre-tightening force. When assembling the constant force spring 100, first, the fixed part 101 of the constant force spring 100 is installed on the sliding member 2, as shown in Figure 3 , which is a schematic view of the constant force spring 100 installed on the sliding member 2.

[0069] After the fixed part 101 of the constant force spring 100 is installed on the sliding member 2, the fixing member 1 is slidably connected with the sliding member 2, and when connected, the mounting port 11 of the fixing member 1 is opposite to the constant force spring 100, as shown in Figure 5As shown in FIG. 6, it is a schematic diagram of the fixed part 1 and the sliding part 2 after the sliding connection, wherein the constant force spring 100 is exposed through the installation port 11. At this time, the sliding part 2 can slide relative to the fixed part 1, but the constant force spring 100 is not pre-tightened, and then the fixed part 1 and the sliding part 2 can be driven to slide relative to each other to confirm whether the sliding smoothness meets the design requirements. Once the constant force spring 100 is pre-tightened, the internal elastic force is equivalent to the gravity of the display, so if the constant force spring 100 has been pre-tightened when confirming the sliding smoothness, a larger elastic force needs to be overcome to drive the fixed part 1 and the sliding part 2 to slide relative to each other. In the embodiment, when confirming the sliding smoothness of the fixed part 1 and the sliding part 2, there is no interference of the constant force spring 100, and the elastic force of the constant force spring 100 does not need to be overcome, so the operation is more labor-saving.

[0070] After confirming the sliding smoothness between the fixed part 1 and the sliding part 2, the cover plate assembly 3 is assembled, as shown in FIG. 7. Figure 8 As shown in FIG. 7, it is a schematic diagram of the assembled cover plate assembly 3, specifically connecting the spring support seat 32 to the cover plate 31. Then, the assembled cover plate assembly 3 is placed in a pre-installation position, so that the spring support seat 32 is in contact with the constant force spring 100, as shown in FIG. 8. Figure 6 As shown in FIG. 8, it is a schematic diagram of the cover plate assembly 3 in the pre-installation position, at this time, the cover plate assembly 3 is not in the final fixed state, and the purpose is to pre-combine the spring support seat 32 and the coil spring part 102 of the constant force spring 100.

[0071] After the spring support seat 32 and the coil spring part 102 are combined, the cover plate assembly 3 is pushed upward from the pre-installation position to the fastening position, in this process, the spring support seat 32 pushes the coil spring part 102 to move away from the fixed part 101, so as to pre-tighten the constant force spring 100, so that the constant force spring 100 has an elastic force equivalent to the gravity of the display, and finally the cover plate assembly 3 is locked on the fixed part 1, completing the installation and pre-tightening of the constant force spring 100. As shown in FIG. 9. Figure 7 As shown in FIG. 9, it is a schematic diagram of the cover plate assembly 3 in the fastening position, wherein, by comparing Figure 6 and Figure 7 It can be seen that the coil spring part 102 of the constant force spring 100 is pushed upward by the spring support seat 32 by a certain distance, and the coil spring part 102 is stretched, so that the internal elastic force of the constant force spring 100 is generated.

[0072] Then, the fixed part 1 is installed on the frame body of the lifting support, and the display is installed on the sliding part 2. The display can be slid up and down to adjust the height position of the display at will, and the display can be stopped at any height position and will not fall. The constant force spring assembly structure provided by the embodiment can simplify the assembly steps of the constant force spring 100, and the constant force spring 100 can be installed and pre-tightened after confirming the sliding smoothness of the fixed part 1 and the sliding part 2, which is simple and labor-saving.

[0073] Referring to Figure 2 andFigure 3 The mechanism for achieving the sliding connection between the fixing member 1 and the sliding member 2 is a guide rail 51 and a sliding block 52. Specifically, the guide rail 51 is arranged on the sliding member 2 in the vertical direction, the sliding block 52 is in sliding cooperation with the guide rail 51, and the fixing member 1 is fixedly connected with the sliding block 52. When confirming whether the fixing member 1 and the sliding member 2 slide smoothly, the fixing member 1 and the sliding block 52 are connected by screws, but the screws are not tightened so as to be adjusted subsequently. When confirming that the sliding smoothness meets the design requirements, the screws are tightened.

[0074] In the embodiment, two guide rails 51 are arranged on the sliding member 2 at intervals, two sliding blocks 52 are arranged on each guide rail 51 in correspondence with the sliding, the two sides of the fixing member 1 are fixedly connected with the corresponding two sliding blocks 52 respectively, and the two guide rails 51 are symmetric with respect to the center of the fixing member 1 and the sliding member 2, so as to ensure the stability of the display when sliding and the uniformity of the stress of the fixing member 1.

[0075] Referring to Figure 2 and Figure 5 , the fixing member 1 is provided with two mounting openings 11, and the left and right sides of the sliding member 2 are each provided with a constant force spring 100, and the two constant force springs 100 are each opposite to one mounting opening 11. Correspondingly, the cover plate assembly 3 is provided with two, which are respectively arranged at the positions of the two mounting openings 11. When the two cover plate assemblies 3 are moved from the pre-installation position to the fastening position, the two constant force springs 100 can be pre-tightened, that is, the two constant force springs 100 together provide a spring force balanced with the gravity of the display.

[0076] Referring to Figure 4 , the coil spring part 102 is in a cylindrical shape. In order to match the shape of the coil spring part 102, in the embodiment, referring to Figure 8 and Figure 9 , the spring support seat 32 is provided with a receiving groove 321, the receiving groove 321 is arc-shaped, and the coil spring part 102 is clamped into the receiving groove 321, so as to realize the cooperation between the spring support seat 32 and the coil spring part 102. After the coil spring part 102 is clamped into the arc-shaped receiving groove 321, the spring support seat 32 is more easily pushed to stretch. Further referring to Figure 3 and Figure 4The left and right sides of the sliding piece 2 are each provided with a plurality of rows of constant force springs 100 in the vertical direction, and the constant force springs 100 in each row are arranged in sequence in the horizontal direction. In this embodiment, three constant force springs 100 are arranged in each row, and correspondingly, three accommodation grooves 321 are arranged on the spring support seat 32 in the horizontal direction, the three accommodation grooves 321 are separated by a partition plate, and the three constant force springs 100 are correspondingly clamped into the three accommodation grooves 321, so that the three constant force springs 100 are accurately stretched in the same direction and will not deviate during the stretching process. That is, the arrangement of the accommodation grooves 321 on the spring support seat 32 enables the coil spring part 102 to be stably positioned inside at all times, and provides a guiding effect for the stretching of the coil spring part 102 during the upward and downward sliding of the sliding piece 2 on the display.

[0077] Further, one spring support seat 32 is arranged corresponding to each row of constant force springs 100, for supporting the plurality of constant force springs 100 in the row. Referring to Figure 8 and Figure 9 The cover plate assembly 3 further comprises a first support 33 and a second support 34, and the first support 33 and the second support 34 are both used for mounting the spring support seat 32. The bottom wall of the accommodation groove 321 is provided with a countersunk hole 324, and a first fastener (not shown in the figure) is arranged in the countersunk hole 324, and the first fastener is connected with the first support 33 or the second support 34. When fixing the spring support seat 32, the first fastener is used to penetrate the countersunk hole 324 of the spring support seat 32 and is connected with the first support 33 or the second support 34.

[0078] In this embodiment, the first fastener is a screw.

[0079] Referring to Figure 8 The first support 33 is fixedly arranged on the cover plate 31, the lowermost spring support seat 32 is mounted on the first support 33, the second support 34 is detachably connected to the cover plate 31, and one or more second supports 34 are arranged above the first support 33. That is, one first support 33 is arranged, one or more second supports 34 can be arranged according to the number of rows of constant force springs 100, the first support 33 is located at the lowermost position, and all the second supports 34 are located above the first support 33. In this embodiment, two rows of constant force springs 100 are arranged on the left and right sides of the sliding piece 2, so that two spring support seats 32 are arranged on each cover plate assembly 3, and correspondingly, one first support 33 and one second support 34 are arranged.

[0080] In this embodiment, referring to Figure 9, the first support 33 is a flat plate which is integrally formed with the cover plate 31. When assembling the cover plate assembly 3, first, a spring support seat 32 is installed on the first support 33, at this time, the second support 34 has not been installed, and the upper part of the first support 33 is not blocked, so a tool can be used to pass a first fastener (screw) through the countersunk hole 324 of the spring support seat 32 and screw it into the first support 33. Subsequently, the second support 34 is installed above the spring support seat 32, and the corresponding spring support seat 32 is installed on the second support 34, and the assembly of the cover plate assembly 3 is completed. Since the second support 34 is detachable on the cover plate 31, the spring support seat 32 on the first support 33 can be fixed after installation, avoiding insufficient operation space when fixing the lower spring support seat 32.

[0081] If three or more rows of constant force springs 100 are arranged on the left and right sides of the sliding member 2, two or more second supports 34 need to be arranged on the cover plate 31, and the plurality of second supports 34 are vertically spaced above the first support 33. After installing the spring support seat 32 on the lower second support 34, the adjacent upper second support 34 is installed, and the spring support seat 32 is fixed on the second support 34 to avoid interference during installation.

[0082] Referring to Figure 9 , the first support 33 and the second support 34 are provided with first positioning holes 331 and second positioning holes 332, and the first positioning holes 331 and the second positioning holes 332 are diagonally arranged; referring to Figure 10 , the spring support seat 32 is diagonally provided with first positioning columns 322 and second positioning columns 323, the first positioning columns 322 are inserted and matched with the first positioning holes 331, and the second positioning columns 323 are inserted and matched with the second positioning holes 332. When installing the spring support seat 32, it is placed on the first support 33 or the second support 34, and the first positioning column 322 is inserted into the first positioning hole 331, and the second positioning column 323 is inserted into the second positioning hole 332, so as to position the installation position of the spring support seat 32, so that the countersunk hole 324 at the bottom of the accommodating groove 321 is exactly opposite to the threaded hole on the first support 33 (the second support 34), facilitating the subsequent connection of the first fastener. In addition, the diagonally arranged first positioning column 322 and second positioning column 323 make the positioning more accurate.

[0083] Further, in the embodiment, referring to Figure 10 , the diameters of the first positioning column 322 and the second positioning column 323 are different, and correspondingly, referring to Figure 9 , the diameters of the first positioning hole 331 and the second positioning hole 332 are also different, so that the installation of the spring support seat 32 has a foolproof function, ensuring that the installation direction of the spring support seat 32 is correct. Of course, in other embodiments, the diameters of the first positioning column 322 and the second positioning column 323 can also be the same.

[0084] Referring to Figure 9 , the second support 34 comprises a connecting plate 341 and a bearing plate 342 connected vertically, the connecting plate 341 is connected with the cover plate 31, and the spring support seat 32 is connected to the bearing plate 342. Specifically, a plurality of third positioning holes 3411 (two in this embodiment) are arranged on the connecting plate 341, a plurality of third positioning columns 311 (two in this embodiment) are arranged on the cover plate 31, and the third positioning columns 311 are inserted into the third positioning holes 3411 one by one. Further, the cover plate 31 is provided with a positioning convex strip 312, and the connecting plate 341 and the bearing plate 342 are arranged on the positioning convex strip 312. By arranging the third positioning columns 311 and the positioning convex strip 312, the installation position of the second support 34 can be accurately positioned. The positioning convex strip 312 is arranged horizontally, and the second support 34 is placed on the positioning convex strip 312, which can ensure the levelness of the second support 34.

[0085] Referring to Figure 9 , the connecting plate 341 and the cover plate 31 are locked and fixed by a second fastener (not shown in the figure), which is preferably a screw. The connecting plate 341 is provided with two connecting holes 3412, and the cover plate 31 is provided with two threaded holes. After the second support 34 is positioned by the third positioning columns 311 and the positioning convex strip 312, the connecting holes 3412 and the threaded holes are one-to-one opposite, and then the second fastener is used for fixing.

[0086] Referring to Figure 10 , the bottom of the spring support seat 32 is provided with a plurality of grooves 325, and the adjacent grooves 325 form connecting ribs 326. The arrangement of the grooves 325 can reduce the material of the spring support seat 32 and reduce the cost, and the arrangement of the connecting ribs 326 can ensure the strength of the entire spring support seat 32 and avoid deformation after long-term use.

[0087] Referring to Figure 4 and Figure 11Each constant force spring 100 is installed on the sliding piece 2 through the spring mounting piece 4 and a locking piece (not shown). The sliding piece 2 is provided with a spring positioning column 21, the fixed part 101 is provided with a spring positioning hole 1011, and the spring mounting piece 4 is provided with a mounting positioning hole 41. When the constant force spring 100 is installed, the spring positioning column 21 is inserted into the spring positioning hole 1011 and the mounting positioning hole 41, and then the locking piece penetrates the spring mounting piece 4, the fixed part 101, and is connected with the sliding piece 2, so that the fixed part 101 is clamped between the spring mounting piece 4 and the sliding piece 2. Specifically, the spring mounting piece 4 is provided with a first fixing hole 42 on both sides of the mounting positioning hole 41, the fixed part 101 is provided with a second fixing hole 1012 on both sides of the spring positioning hole 1011, and the sliding piece 2 is provided with a third fixing hole 22 on both sides of the spring positioning column 21. After the fixed part 101 and the spring mounting piece 4 are positioned by the spring positioning column 21, the first fixing hole 42, the second fixing hole 1012 and the third fixing hole 22 are opposite one by one, and then the locking piece is penetrated and fixed. Alternatively, the locking piece is a screw.

[0088] Referring to Figure 2 and Figure 5 , the fixed part 1 is recessed with a mounting groove 12 at the edge of the mounting port 11. Referring to Figure 8 , the side of the cover plate 31 facing the fixed part 1 is convexly provided with a first boss 313, the first and second brackets 33 and 34 for installing the spring support seat 32 are installed on the first boss 313, the first boss 313 is embedded into the mounting port 11, and the cover plate 31 is embedded into the mounting groove 12. That is, a first stepped structure is formed between the cover plate 31 and the first boss 313, a second stepped structure is formed between the groove wall of the mounting groove 12 and the inner wall surface of the mounting port 11, and the first and second stepped structures are embedded, so that the cover plate assembly 3 is positioned and stabilized at the fastening position at the same time. Further, the outer side surface of the cover plate 31 is flush with the outer side surface of the fixed part 1, so as to avoid interference with the later installation due to the existence of the protruding part.

[0089] Referring to Figure 2 and Figure 5 , the groove bottom of the mounting groove 12 is further provided with a limiting recess 13, referring to Figure 8 , the side of the cover plate 31 facing the fixed part 1 is convexly provided with a second boss 314, the second boss 314 is located below the first boss 313, and the second boss 314 can be clamped into the limiting recess 13, so as to further improve the stability of the cover plate assembly 3 after installation. After the cover plate assembly 3 is moved from the pre-installation position to the fastening position, the screw is penetrated through the cover plate 31 and screwed into the bottom wall of the mounting groove 12.

[0090] The embodiment also provides a constant force spring assembly method applied to the constant force spring assembly structure as described above, and the constant force spring assembly method comprises the following steps:

[0091] S1, install the fixed part 101 of the constant force spring 100 on the sliding part 2, and make the fixed part 1 and the sliding part 2 slideably connected, as shown in Figure 3 and Figure 5 ;

[0092] S2, drive the fixed part 1 and the sliding part 2 to slide relative to each other, and confirm whether the sliding smoothness meets the design requirements;

[0093] S3, assemble the cover plate assembly 3;

[0094] S4, place the cover plate assembly 3 in a pre-installation position, and make the spring support seat 32 contact with the constant force spring 100, as shown in Figure 6 ;

[0095] S5, push the cover plate assembly 3 to move from the pre-installation position to the fastening position, so that the spring support seat 32 pushes the pre-tightened constant force spring 100, as shown in Figure 7 ;

[0096] S6, lock the cover plate assembly 3 on the fixed part 1. As shown in Figure 1 , it is a schematic diagram of the cover plate assembly 3 after being locked.

[0097] The constant force spring assembly method provided in the embodiment is that when confirming whether the fixed part 1 and the sliding part 2 slide smoothly, the constant force spring 100 is not pre-tightened, and when sliding the fixed part 1 up and down, there is no interference of the constant force spring 100, and there is no need to overcome the elastic force of the constant force spring 100, so the operation is more labor-saving. After confirming the sliding smoothness, the cover plate assembly 3 is installed to pre-tighten the constant force spring 100, so that the constant force spring 100 has an elastic force equivalent to the gravity of the display, and finally the cover plate assembly 3 is locked on the fixed part 1, completing the installation and pre-tightening of the constant force spring 100. After that, the fixed part 1 is installed on the frame body of the lifting support, and the display is installed on the sliding part 2, and sliding the display up and down can make the display stop at any height position.

[0098] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A constant-force spring assembly structure for a lifting support, characterized in that, Includes a fastener (1), a slider (2), and a cover plate assembly (3); The sliding member (2) is slidably disposed on the fixing member (1). The fixing member (1) is provided with a mounting port (11). The constant force spring (100) includes a fixing part (101) and a coil spring part (102). The fixing part (101) is fixedly connected to the sliding member (2), and the coil spring part (102) is directly opposite the mounting port (11). The cover plate assembly (3) is detachably fastened to the mounting port (11), and includes a cover plate (31) and a spring support seat (32) disposed on the cover plate (31). The cover plate assembly (3) has a pre-installation position and a fastening position. When the cover plate assembly (3) moves from the pre-installation position to the fastening position, the spring support seat (32) pushes the coil spring (102) away from the fixing part (101) to pre-tighten the constant force spring (100). The spring support seat (32) is provided with a receiving groove (321), the coil spring part (102) is inserted into the receiving groove (321), and the receiving groove (321) is arc-shaped; The sliding member (2) is provided with multiple rows of constant force springs (100) along the vertical direction, and each row of constant force springs (100) is provided with a spring support seat (32). The cover plate assembly (3) further includes a first bracket (33) and a second bracket (34), both of which are used to install the spring support seat (32). The first bracket (33) is fixed on the cover plate (31), the lowest spring support seat (32) is installed on the first bracket (33), the second bracket (34) is detachably connected to the cover plate (31), and one or more second brackets (34) are arranged above the first bracket (33).

2. The constant force spring assembly structure for a lifting support according to claim 1, characterized in that, Both the first bracket (33) and the second bracket (34) are provided with a first positioning hole (331) and a second positioning hole (332), and the first positioning hole (331) and the second positioning hole (332) are arranged diagonally. The spring support base (32) is provided with a first positioning post (322) and a second positioning post (323) diagonally. The first positioning post (322) is inserted into the first positioning hole (331), and the second positioning post (323) is inserted into the second positioning hole (332). The diameters of the first positioning post (322) and the second positioning post (323) may be the same or different.

3. The constant force spring assembly structure for a lifting support according to claim 1, characterized in that, The bottom wall of the receiving groove (321) is provided with a countersunk hole (324), and a first fastener is inserted into the countersunk hole (324). The first fastener is connected to the first bracket (33) or the second bracket (34).

4. The constant force spring assembly structure for a lifting support according to claim 1, characterized in that, The second bracket (34) includes a vertically connected connecting plate (341) and a bearing plate (342), and the spring support seat (32) is connected to the bearing plate (342); The connecting plate (341) is provided with a plurality of third positioning holes (3411), and the cover plate (31) is provided with a plurality of third positioning posts (311), and the plurality of third positioning posts (311) are inserted into the plurality of third positioning holes (3411) in a corresponding manner. The connecting plate (341) and the cover plate (31) are locked together by a second fastener; The cover plate (31) is provided with a positioning protrusion (312), and the connection between the connecting plate (341) and the bearing plate (342) is placed on the positioning protrusion (312).

5. The constant-force spring assembly structure for a lifting support according to any one of claims 1-4, characterized in that, It also includes a spring mounting plate (4) and a locking element; The sliding member (2) is provided with a spring positioning post (21), the fixing part (101) is provided with a spring positioning hole (1011), the spring mounting plate (4) is provided with a mounting positioning hole (41), and the spring positioning post (21) is inserted into the spring positioning hole (1011) and the mounting positioning hole (41); The locking member can pass through the spring mounting plate (4) and the fixing part (101) and is connected to the sliding member (2).

6. The constant-force spring assembly structure for a lifting support according to any one of claims 1-4, characterized in that, The fastener (1) has a recessed mounting groove (12) at the edge of the mounting opening (11). The cover plate (31) has a first boss (313) protruding on the side facing the fastener (1). The spring support seat (32) is connected to the first boss (313). The first boss (313) is embedded in the mounting opening (11). The cover plate (31) is embedded in the mounting groove (12). The outer side of the cover plate (31) is flush with the outer side of the fastener (1).

7. The constant force spring assembly structure for a lifting support according to claim 6, characterized in that, The bottom of the mounting groove (12) is also provided with a limiting groove (13). The cover plate (31) has a second protrusion (314) protruding on the side facing the fixing member (1). The second protrusion (314) is located below the first protrusion (313), and the second protrusion (314) can be inserted into the limiting groove (13).

8. A method for assembling a constant-force spring, characterized in that, The constant force spring assembly structure as described in any one of claims 1-7, wherein the constant force spring assembly method comprises the following steps: S1. Install the fixing part (101) of the constant force spring (100) onto the sliding member (2) and make the fixing member (1) and the sliding member (2) slidably connected; S2. Drive the fixing member (1) to slide relative to the sliding member (2) to confirm whether the smoothness of sliding meets the design requirements; S3. Assemble the cover plate assembly (3); S4. Place the cover plate assembly (3) in the pre-installation position so that the spring support seat (32) contacts the constant force spring (100); S5. Push the cover plate assembly (3) from the pre-installation position to the fastening position so that the spring support seat (32) pushes the pre-tightened constant force spring (100). S6. Lock the cover plate assembly (3) onto the fastener (1).

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