Easily-installed high-precision stepless adjustment keel frame type cabinet and installation method

Abstract

The invention relates to the technical field of self-service equipment, and provides an easy-to-install high-precision stepless adjustment keel frame type cabinet and an installation method.The cabinet comprises a panel assembly, a bill reading module, an industrial personal computer, a power source, a recycling scanner, a side plate and a keel frame, and is characterized in that the keel frame comprises a keel assembly and a plug-in type self-locking connecting assembly; the keel assembly comprises a plurality of longitudinal scale section bars and transverse scale section bars, and the longitudinal scale section bars and the transverse scale section bars are each provided with a groove with the cross section in an inverted-T shape. The longitudinal scale section bar and the transverse scale section bar are detachably connected through the plug-in type self-locking connecting assembly and the profile groove assembly. The cabinet has the advantages of being convenient to assemble, accurate in positioning and anti-loosening, and the whole cabinet has higher modifiability and adaptability.

Description

Technical Field

[0001] The present application belongs to the technical field of self-service equipment, and more specifically, to an easy-to-install high-precision stepless adjustable keel frame cabinet and an installation method. Background Art

[0002] With the development of financial electronicization and informatization, self-service equipment has been widely used in banking business and plays an increasingly important role. Common financial self-service equipment includes ATMs, self-service inquiry terminals, self-service payment terminals, online banking experience machines, etc.

[0003] Existing self-service equipment generally includes cabinets, panel components, power supplies and other components. Self-service equipment with different functions are equipped with corresponding functional modules. Among them, the cabinet includes a frame and side panels. The frame is generally composed of multiple aluminum alloy profiles. Existing aluminum alloy profiles are generally assembled by iron plate welding, or by rotating screws with angle plates or by embedding nuts into the grooves of the profiles in advance. During assembly, the angle plates are aligned first and then the screws are tightened. The overall operation is extremely inconvenient, and the rotating screws are not rotated in place during installation, resulting in loose installation, inconvenient position adjustment, and inaccurate positioning. Summary of the invention

[0004] In view of one of the shortcomings of the frame assembly in the above-mentioned prior art, the purpose of the embodiment of the present application is to provide an easy-to-install high-precision stepless adjustable keel frame cabinet, which has the advantages of easy assembly, accurate positioning and anti-loosening.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide an easy-to-install high-precision stepless adjustable keel frame cabinet, comprising: a panel assembly, a bill reading module, an industrial computer, a power supply, a recycling scanner, a side panel and a keel frame, wherein the keel frame comprises: a keel assembly and an insert-type self-locking connection assembly, wherein the keel assembly comprises a plurality of longitudinal scale profiles and transverse scale profiles, wherein the longitudinal scale profiles and the transverse scale profiles are both provided with a groove with a convex cross-section, wherein the longitudinal scale profiles and the transverse scale profiles are detachably connected by being assembled with the groove through the insert-type self-locking connection assembly;

[0006] The plug-in self-locking connection assembly includes: an L-shaped base, a locking spindle, an elastic hook, an anti-loosening piece and a locking screw. The locking spindle is movably arranged on the L-shaped base. The two elastic hooks are symmetrically arranged on the locking spindle and automatically expand outward. The locking spindle is provided with a receiving groove for accommodating the elastic hooks. The elastic hook protrudes from the outer side surface of the L-shaped base. The anti-loosening piece is sleeved on the locking screw and is located on the inner side surface of the L-shaped base. The locking screw is threadedly connected to the locking spindle.

[0007] In one embodiment, the elastic hook includes a rotating shaft, an outer elastic hook, and a hook spring. One end of the outer elastic hook is rotatably arranged in the accommodation groove through the rotating shaft. One end of the hook spring is fixed to the bottom of the accommodation groove, and the other end is fixed to the middle of the outer elastic hook, and in the natural state, the outer elastic hook is ejected out of the accommodation groove.

[0008] In one embodiment, the outer side wall of the accommodation groove is a limiting surface for the opening angle of the hook. The opening angle range of the outer elastic hook is 0 - 50°.

[0009] In one embodiment, the L-shaped base is provided with an installation hole for the locking main shaft to move. One end of the locking main shaft located inside the L-shaped base is provided with an annular boss, and the diameter of the annular boss is greater than the diameter of the installation hole.

[0010] In one embodiment, a locking spring is further sleeved on the locking main shaft. One end of the locking spring abuts against the inner side surface of the L-shaped base, and the other end abuts against the inside of the anti-loosening member.

[0011] In one embodiment, two limiting baffles for restricting the rotation of the locking main shaft are provided on the outer side surface of the L-shaped base.

[0012] In one embodiment, the anti-loosening member is a cylindrical structure, and one end of the anti-loosening member in contact with the L-shaped base is provided with a circle of anti-loosening one-way teeth.

[0013] In one embodiment, one end of the locking main shaft inserted into the type groove is provided with a guiding surface.

[0014] In one embodiment, the minimum scale on the longitudinal scale profile and the transverse scale profile is 1 mm.

[0015] Another object of the present application is to provide an installation method for an easily installed high-precision steplessly adjustable keel frame type cabinet. Based on the above-mentioned easily installed high-precision steplessly adjustable keel frame type cabinet, the installation method includes the following steps:

[0016] Step S1: Cut appropriate longitudinal scale profiles and transverse scale profiles according to the designed length, and cut according to the scales on the scale profiles.

[0017] Step S2. After determining the assembly positions of each longitudinal scale profile and transverse scale profile, first insert the rotating limit plates and locking spindles protruding from the two outer sides of the L-shaped base into the corresponding grooves of the longitudinal scale profile and transverse scale profile respectively. During the insertion process, the notch of the groove will automatically squeeze the elastic hook, causing it to be received into the accommodating groove. After the accommodating groove on the locking spindle is completely inserted into the groove, the hook spring will automatically eject the outer elastic hook. The elastic force of the locking spring causes the locking spindle to have a tendency to pop out of the groove, so that the outer elastic hook bites with the inner wall of the groove, initially tensioning the longitudinal scale profile and the transverse scale profile under force;

[0018] Step S3. By tightening the locking screw and pulling the locking spindle, the outer elastic hook bites tightly against the inner wall of the groove. At the same time, the anti-loosening part rotates clockwise under the frictional force of the locking screw. After the locking screw is tightened, the assembly of the longitudinal scale profile and the transverse scale profile is completed;

[0019] At this time, the tooth direction of the anti-loosening one-way teeth on the anti-loosening part is counterclockwise. When the reverse torque causes loosening, the tip of the anti-loosening one-way teeth abuts against the surface of the L-shaped base to prevent loosening;

[0020] Step S4. According to the design requirements, assemble the panel assembly, bill reading module, industrial computer, power supply, recycling scanner, and side plate at the corresponding positions on the keel frame;

[0021] Step S5. According to the appearance requirements, replace the side plate with the corresponding skin color.

[0022] The beneficial effects of an easy-to-install high-precision steplessly adjustable keel frame type cabinet and installation method provided by this application are as follows:

[0023] 1. The keel frame adopts multiple longitudinal scale profiles and transverse scale profiles with built-in scales, so that the assembly accuracy is higher, the installation is more intuitive, and the installation difficulty is simplified;

[0024] 2. The profile installation can be directly fixed through the plug-in self-locking connection component, and it has a certain installation pre-tightening effect. There is no need to embed connection nuts in the profiles in advance. At the same time, it solves the problems that the sliding nut cannot be rotated in place during installation, resulting in the installation not being locked, and the omission or under-placement of the embedded nuts during the profile construction. It greatly improves the installation efficiency and the reliability of the installation. At the same time, due to the existence of the scales, stepless adjustment can be achieved;

[0025] 3. Compared with traditional self-service devices, the cabinet of the present application has higher transformability and adaptability due to the adoption of the above-mentioned keel framework. If the cabinet is widened, only the width of the keel transverse scale profile needs to be changed, and the outer skins on both sides can continue to be used, making the change simpler. If the color is to be changed, only the color of the skin needs to be changed, and the cabinet body does not need to be replaced. The keels of scrapped devices can be reused, achieving zero scrap, zero inventory, and zero stagnation to a certain extent. It has great advantages compared with traditional integral welding devices. Traditional welded cabinets cannot be reused after being scrapped, and to a certain extent, the production cost and scrap cost of traditional cabinets increase sharply.

[0026] 4. The production cycle of the cabinet with a keel framework is shorter. The keel components only need to intercept the scale profiles of the corresponding lengths for installation, and then the corresponding modules can be installed, reducing processes such as blanking, bending, riveting, welding, grinding, puttying, and spraying compared with traditional cabinets. The production cycle is short and the installation is more flexible, with better adjustability and installability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic diagram of the overall structure of the cabinet provided in the embodiment of the present application;

[0029] Figure 2 It is an exploded structure schematic diagram of the cabinet provided in the embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the overall structure of the keel framework in the embodiment of the present application;

[0031] Figure 4 It is a cross-sectional structure schematic diagram of the connection between the plug-in self-locking connection component and the scale profile in the embodiment of the present application;

[0032] Figure 5 It is a three-dimensional structure schematic diagram of the plug-in self-locking connection component in the embodiment of the present application;

[0033] Figure 6 It is a cross-sectional structure schematic diagram of the plug-in self-locking connection component in the embodiment of the present application.

[0034] Among them, the reference numerals in the drawings are as follows:

[0035] 1. Panel assembly; 2. Bill reading module; 3. Industrial control computer; 4. Power supply; 5. Recycling scanner; 6. Side plate; 7. Keel frame; 71. Keel assembly; 711. Longitudinal scale profile; 712. Transverse scale profile; 713. Groove; 72. Plug-in self-locking connection assembly; 721. L-shaped base; 7211. Limit baffle; 722. Locking spindle; 7221. Accommodation groove; 7222. Annular boss; 7223. Locking spring; 7224. Guide surface; 7225. Opening limit surface; 723. Elastic hook; 7231. Rotating shaft; 7232. Outer elastic hook; 7233. Hook spring; 724. Anti-loosening part; 7241. Anti-loosening one-way tooth; 725. Locking screw; 8. Rear upper plate; 9. Rear lower plate; 10. Second-generation ID card; 11. Gas spring; 12. Skin connecting piece; 13. Lower door; 14. External skin. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0040] Such as Figures 1 - 6As shown in the figure, a kind of easy - to - install high - precision stepless - adjustment keel - framed cabinet provided by the embodiments of the present application will be described. This easy - to - install high - precision stepless - adjustment keel - framed cabinet includes: a panel assembly 1, a bill reading module 2, an industrial computer 3, a power supply 4, a recycling scanner 5, a second - generation ID card machine, side plates 6, a bottom plate, and a keel frame 7. The side plates 6 include a left side plate, a right side plate, and a rear side plate. The upper and lower parts of the rear side plate are respectively a rear upper plate 8 and a rear lower plate 9; the panel assembly 1 can be opened and supported by a gas spring 11. An external skin 14 can be provided on the side plates 6, and a skin connecting member 12 is provided on the keel frame 7 for fixedly connecting the side plates and the external skin to the keel frame 7 by means of screws. The above - mentioned components are all conventional components of the cabinet, and their structures and installation processes will not be introduced in detail here. The main improvement point of this embodiment lies in the improvement of the specific structure of the keel frame 7.

[0041] As Figures 3 - 6 shown, the keel frame 7 includes: a keel assembly 71 and an insert - type self - locking connection assembly 72. The keel assembly 71 includes multiple longitudinal scale profiles 711 and transverse scale profiles 712. The multiple longitudinal scale profiles 711 and transverse scale profiles 712 are spliced together to form a frame structure and are fixed by the insert - type self - locking connection assembly 72. In this embodiment, both the longitudinal scale profiles 711 and the transverse scale profiles 712 are provided with a convex - shaped groove 713 in cross - section. The overall outer contour of the cross - section of the scale profile is square or rectangular, and each side is provided with scales and the groove 713. Among them, the function of the groove 713 is to install the insert - type self - locking connection assembly 72 so as to assemble the longitudinal scale profiles 711 and the transverse scale profiles 712 together by means of the insert - type self - locking connection assembly 72.

[0042] Specifically, the longitudinal scale profiles 711 and the transverse scale profiles 712 are detachably connected through the assembly of the insert - type self - locking connection assembly 72 and the groove 713; among them, the insert - type self - locking connection assembly 72 includes: an L - shaped base 721, a locking main shaft 722, an elastic hook 723, a locking prevention member 724, and a locking screw 725. Among them, the two outer sides of the L - shaped base 721 are respectively attached to the longitudinal scale profile 711 and the transverse scale profile 712, and the locking main shaft 722 is movably arranged on the L - shaped base 721, as Figure 5As shown in the figure, there are four locking spindles 722. Every two locking spindles 722 are used to connect with the longitudinal scale profile 711 or the transverse scale profile 712. There are two elastic hooks 723 on each locking spindle 722. The two elastic hooks 723 are symmetrically arranged on the locking spindle 722 and expand outwards automatically so that after being inserted into the groove 713, they can bite with the inner wall of the groove 713. There is a receiving groove 7221 for accommodating the elastic hook 723 on the locking spindle 722, which is convenient for accommodating the elastic hook 723 during the process of inserting into the groove 713. The elastic hook 723 protrudes from the outer side of the L-shaped base 721. The anti-loosening part 724 is sleeved on the locking screw 725 and located on the inner side of the L-shaped base 721. The locking screw 725 is threadedly connected with the locking spindle 722. When the locking screw 725 is tightened, it will drive the anti-loosening part 724 to rotate and pull the locking spindle 722, making the elastic hook 723 bite more tightly with the inner wall of the groove 713 and the anti-loosening part 724 prevent the locking screw 725 from loosening, ensuring the firmness of the assembly of the longitudinal scale profile 711 and the transverse scale profile 712.

[0043] In this embodiment, the elastic hook 723 includes: a rotating shaft 7231, an outer elastic hook 7232 and a hook spring 7233. Among them, one end of the outer elastic hook 7232 is rotatably arranged in the receiving groove 7221 through the rotating shaft 7231. One end of the hook spring 7233 is fixed at the bottom of the receiving groove 7221, and the other end is fixed in the middle of the outer elastic hook 7232. In the natural state, the hook spring 7233 pops the outer elastic hook 7232 out of the receiving groove 7221, that is, the two outer elastic hooks 7232 expand outwards automatically without external force.

[0044] In this embodiment, the outer side wall of the receiving groove 7221 (the side wall away from the L-shaped base 721) is the hook angle opening limit surface 7225. When the outer elastic hook 7232 is fully opened, it abuts against the hook angle opening limit surface 7225 to limit the further opening of the outer elastic hook 7232. The angle opening range of the outer elastic hook 7232 is 0-50°. When the outer elastic hook 7232 is received in the receiving groove 7221, the opening angle is 0°, and when the outer elastic hook 7232 is locked, the fully opened angle is 50°.

[0045] Specifically, there is an installation hole for the movement of the locking spindle 722 on the L-shaped base 721. One end of the locking spindle 722 located inside the L-shaped base 721 is provided with an annular boss 7222. The diameter of the annular boss 7222 is larger than the diameter of the installation hole. The annular boss 7222 is provided to prevent the locking spindle 722 from falling off the L-shaped base 721. After the locking spindle 722 is assembled on the L-shaped base 721, the annular boss 7222 cooperates with the automatically expanding elastic hook 723 to ensure that the locking spindle 722 will not fall off.

[0046] In this embodiment, a locking spring 7223 is further sleeved on the locking main shaft 722. One end of the locking spring 7223 abuts against the inner side surface of the L-shaped base 721, and the other end abuts against the inner side of the anti-loosening member 724. The function of the locking spring 7223 is to make the locking main shaft 722 tend to move towards the inner side of the L-shaped base 721. So that after the outer spring hook 7232 is inserted into the groove 713, under the elastic force of the locking spring 7223, the locking main shaft 722 has a tendency to pop out, and when locking the outer spring of the main shaft, the outer spring hook 7232 is driven to move out of the groove 713 synchronously, so that the outer spring hook 7232 and the inner wall of the groove 713 achieve preliminary engagement and pre-tightening.

[0047] In this embodiment, two limiting baffles 7211 for restricting the rotation of the locking main shaft 722 are provided on the outer side surface of the L-shaped base 721. The two limiting baffles 7211 are located on two opposite side surfaces of the locking main shaft 722 where the outer spring hook 7232 is not installed. The function of the limiting baffle 7211 is to keep the locking main shaft 722 only able to move linearly, avoiding the locking main shaft 722 from rotating when the locking screw is turned, so as to ensure that the outer spring hook 7232 can engage and lock with the inner wall of the groove 713.

[0048] In this embodiment, the anti-loosening member 724 is of a cylindrical structure, and a circle of anti-loosening one-way teeth 7241 is provided at one end of the anti-loosening member 724 in contact with the L-shaped base 721; when the locking screw 725 is tightened clockwise, the tooth direction of the anti-loosening one-way teeth 7241 is counterclockwise, and when the reverse torque is loosened, the tooth tips of the anti-loosening one-way teeth 7241 abut against the L-shaped base 721, increasing the resistance and achieving the anti-loosening effect.

[0049] In this embodiment, since the cross-section of the groove 713 is convex-shaped and the size of the entrance end is smaller, in order to facilitate the insertion of the locking main shaft 722, a guiding surface 7224 is provided at one end of the locking main shaft 722 inserted into the groove 713. Similarly, the guiding surface 7224 is also provided on the limiting baffle 7211.

[0050] In this embodiment, in order to facilitate the determination of the length dimension of the scale profile, the minimum scale on the longitudinal scale profile 711 and the transverse scale profile 712 is 1 mm.

[0051] This embodiment also provides an installation method for an easily installed high-precision steplessly adjustable keel frame type cabinet. Based on the above-mentioned easily installed high-precision steplessly adjustable keel frame type cabinet, the installation method includes the following steps:

[0052] Step S1, cut the longitudinal scale profile 711 and the transverse scale profile 712 with appropriate lengths according to the designed length, and cut according to the scale on the scale profile; in this way, there is no need to use a ruler-like tool for measurement, and the accuracy is relatively high;

[0053] Step S2: After all the required scale profiles are cut, the scales on the scale profiles are installed according to the design requirements. After the assembly positions of the longitudinal scale profiles 711 and the transverse scale profiles 712 are determined, the plug-in self-locking connection assembly 72 is inserted, as follows:

[0054] First, insert the rotation limit plates and locking spindles 722 protruding on the two outer surfaces of the L-shaped base 721 into the corresponding grooves 713 of the longitudinal scale profile 711 and the transverse scale profile 712 respectively. During the insertion process, the guide surface 7224 and the notch of the groove 713 are guided. When the insertion is continued, the notch of the groove 713 will automatically squeeze the elastic hook 723, and the outer hook spring is compressed, so that the outer elastic hook 7232 is stored in the accommodating groove 7221 After the receiving groove 7221 on the locking spindle 722 is completely inserted into the groove 713, the notch extrusion force on the outer spring hook 7232 disappears, and the hook spring 7233 automatically pops out the outer spring hook 7232, and under the action of the angle opening limit surface 7225, the outer spring hook 7232 opens 50 degrees. In addition, at this time, the outer spring hook 7232 is hooked on the inner wall of the groove 713, and the limit baffle 7211 limits the rotation of the locking spindle 722;

[0055] At the same time, the elastic force of the locking spring 7223 makes the locking spindle 722 have a tendency to pop out of the groove 713, that is, the locking spindle 722 has a pulling force to pull outward, so that the outer elastic hook 7232 is engaged with the inner wall of the groove 713, so that the longitudinal scale profile 711 and the transverse scale profile 712 are initially tightened by force;

[0056] Step S3, after the positions of the longitudinal scale profile 711 and the transverse scale profile 712 are basically fixed, by tightening the locking screw 725 (clockwise), the locking screw 725 pulls the locking spindle 722 during the rotation process, so that the outer elastic hook 7232 bites the inner wall of the groove 713, and at the same time, the anti-loosening member 724 is rotated clockwise by the friction force of the locking screw 725. After the locking screw 725 is locked, the assembly of the longitudinal scale profile 711 and the transverse scale profile 712 is completed; the locking screw 725 can be automatically tightened by an electric tool, or it can be loosened and tightened;

[0057] After the locking screw 725 is locked, the anti-loosening member 724 is synchronously anti-loosening: the anti-loosening one-way tooth 7241 on the anti-loosening member 724 is anti-clockwise, and when the reverse torque is loosened, the tooth tip of the anti-loosening one-way tooth 7241 presses against the surface of the L-shaped base 721, which has a large resistance to prevent loosening;

[0058] Step S4. After the keel frame 7 is assembled, according to the design requirements, other components of the cabinet are respectively installed at the corresponding positions on the keel frame 7. For example, the panel assembly 1, the bill reading module 2, the industrial control computer 3, the power supply 4, the recycling scanner 5, and the side plate 6 are assembled at the corresponding positions on the keel frame 7. Different types of cabinets have different functional modules, which are not specifically defined herein.

[0059] Step S5. According to the appearance requirements, replace the side plate 6 with the corresponding skin color.

[0060] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An easy-to-install high-precision infinitely adjustable keel frame cabinet, comprising: A panel assembly (1), a bill reading module (2), an industrial computer (3), a power supply (4), a recycling scanner (5), a side panel (6) and a keel frame (7), characterized in that the keel frame (7) comprises: a keel assembly (71) and an insert-type self-locking connection assembly (72), the keel assembly (71) comprises a plurality of longitudinal scale profiles (711) and transverse scale profiles (712), the longitudinal scale profiles (711) and the transverse scale profiles (712) are both provided with a groove (713) with a convex cross-section, and the longitudinal scale profiles (711) and the transverse scale profiles (712) are detachably connected by being assembled with the insert-type self-locking connection assembly (72) and the groove (713); The plug-in self-locking connection assembly (72) comprises: an L-shaped base (721), a locking spindle (722), an elastic hook (723), an anti-loosening member (724) and a locking screw (725); the locking spindle (722) is movably arranged on the L-shaped base (721); two elastic hooks (723) are symmetrically arranged on the locking spindle (722) and automatically expand outward; the locking spindle (722) is provided with a receiving groove (7221) for accommodating the elastic hook (723); the elastic hook (723) protrudes from the outer side surface of the L-shaped base (721); the anti-loosening member (724) is sleeved on the locking screw (725) and is located on the inner side surface of the L-shaped base (721); the locking screw (725) is threadedly connected to the locking spindle (722).

2. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 1, characterized in that: The elastic hook (723) comprises: a rotating shaft (7231), an externally elastic hook (7232) and a hook spring (7233); one end of the externally elastic hook (7232) is rotatably arranged in the receiving groove (7221) through the rotating shaft (7231); one end of the hook spring (7233) is fixed to the bottom of the receiving groove (7221), and the other end is fixed to the middle of the externally elastic hook (7232); and in a natural state, the externally elastic hook (7232) is ejected from the receiving groove (7221).

3. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 2, characterized in that: The outer side wall of the accommodating groove (7221) is a limit surface (7225) for opening the pull hook angle, and the angle opening range of the externally elastic pull hook (7232) is 0-50°.

4. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 3, characterized in that: The L-shaped base (721) is provided with a mounting hole for the locking spindle (722) to move, and an annular boss (7222) is provided at one end of the locking spindle (722) located inside the L-shaped base (721), wherein the diameter of the annular boss (7222) is greater than the diameter of the mounting hole.

5. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 4, characterized in that: A locking spring (7223) is also sleeved on the locking spindle (722), one end of the locking spring (7223) abuts against the inner side surface of the L-shaped base (721), and the other end abuts against the inner side of the anti-loosening component (724).

6. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 5, characterized in that: Two limit baffles (7211) for limiting the rotation of the locking spindle (722) are provided on the outer side surface of the L-shaped base (721).

7. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 6, characterized in that: The anti-loosening member (724) is a cylindrical structure, and one end of the anti-loosening member (724) in contact with the L-shaped base (721) is provided with a circle of anti-loosening one-way teeth (7241).

8. The easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 7, characterized in that: One end of the locking spindle (722) inserted into the groove (713) is provided with a guide surface (7224).

9. The easy-to-install high-precision stepless adjustable keel frame cabinet according to any one of claims 1 to 8, characterized in that: The minimum scale on the longitudinal scale profile (711) and the transverse scale profile (712) is 1 mm.

10. A method for installing an easy-to-install high-precision stepless adjustable keel frame cabinet, based on the easy-to-install high-precision stepless adjustable keel frame cabinet according to claim 8, characterized in that: The installation method comprises the following steps: Step S1, cutting a suitable longitudinal scale profile (711) and a transverse scale profile (712) according to the designed length, and cutting according to the scales on the scale profile; Step S2: After determining the assembly positions of the longitudinal scale profiles (711) and the transverse scale profiles (712), the rotation limit plates and the locking spindles (722) protruding on the two outer sides of the L-shaped base (721) are respectively inserted into the corresponding grooves (713) of the longitudinal scale profiles (711) and the transverse scale profiles (712). During the insertion process, the notch of the groove (713) automatically squeezes the elastic hook (723) so that it is received in the receiving groove (7221). After the receiving groove (7221) on the locking spindle (722) is completely inserted into the groove (713), the hook spring (7233) automatically pops out the outer hook (7232), and the elastic force of the locking spring (7223) makes the locking spindle (722) have a tendency to pop out of the groove (713), so that the outer hook (7232) is engaged with the inner wall of the groove (713), so that the longitudinal scale profile (711) and the transverse scale profile (712) are initially tensioned; Step S3, by tightening the locking screw (725), the locking spindle (722) is pulled, so that the outer retractable hook (7232) bites the inner wall of the groove (713), and at the same time, the anti-loosening member (724) rotates clockwise due to the friction force of the locking screw (725). After the locking screw (725) is locked, the assembly of the longitudinal scale profile (711) and the transverse scale profile (712) is completed; At this time, the anti-loosening one-way tooth (7241) on the anti-loosening member (724) is in a counterclockwise direction. When the reverse torque is loosened, the tooth tip of the anti-loosening one-way tooth (7241) presses against the surface of the L-shaped base (721) to prevent loosening; Step S4: according to the design requirements, the panel assembly (1), the bill reading module (2), the industrial computer (3), the power supply (4), the recycling scanner (5), and the side panel (6) are assembled at corresponding positions on the keel frame (7); Step S5: Replace the side panels (6) with the corresponding skin color according to the appearance requirements.

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