Server handle strip free of screw fixation

Abstract

The invention discloses a screw-fixing-free server handle strip, and relates to the technical field of server equipment.The screw-fixing-free server handle strip comprises a mounting frame, a first containing cavity used for containing a server is formed in the mounting frame, and a supporting strip is mounted at the bottom of the first containing cavity; the two opposite outer side walls of the installation frame are each provided with at least one first limiting assembly used for limiting displacement of the server. The contact part of the first limiting assembly is used for abutting against the side face of the server, when the first limiting assembly of the screw-free fixing structure and the server are pushed into the installation frame, the side face of the server extrudes the contact part of the elastic limiting piece, the elastic limiting piece is forced to transversely deform and longitudinally move under the guidance of the elasticity of the elastic limiting piece and the first pin, and therefore the server is automatically clamped. The plug-and-play of the server is achieved, tools are not needed in the installation process, and the operation steps are greatly simplified.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of server devices, in particular to a server handle strip free of screw fixation. BACKGROUND

[0002] With the rapid development of data center and cloud computing technology, server devices are evolving towards high density, modularity and high availability. Under this background, the efficiency of device maintenance and replacement in the server cabinet has become a key factor affecting the operation and maintenance cost and business continuity of the data center. In the traditional server installation method, screws are generally used to directly fix the server on the slide rail or tray of the cabinet. Although this fixing method is firm and reliable, when performing hardware upgrade, fault maintenance or routine maintenance, the operator needs to use special tools to tighten or disassemble multiple screws, which is time-consuming and tedious, not only increasing the workload of the operation and maintenance personnel, but also prolonging the downtime of the server.

[0003] To solve this problem, some tool-free installation schemes have appeared in the market, such as using buckles, elastic pieces or quick latches. However, the existing schemes often have the following limitations: first, the locking force provided by some simple buckle structures is insufficient, which may cause the server to loosen during device vibration or accidental collision, posing a safety hazard; second, although some complex quick-release devices are reliable in locking, they are high in cost or have poor compatibility with standard cabinets, making it difficult to deploy on a large scale, increasing the complexity and cost of the system. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide a server handle strip free of screw fixation.

[0005] The purpose of the present application is achieved by the following technical solutions: A server handle strip free of screw fixation, comprising a mounting frame, a first accommodating cavity for accommodating a server is arranged inside the mounting frame, a support strip is installed at the bottom of the first accommodating cavity, and at least one first limiting component for limiting the displacement of the server is installed on each of the two outer side walls of the mounting frame; The first limiting component comprises an elastic limiting sheet, a first pin and two accommodating boxes, a slanted groove is symmetrically formed on the side surface of the mounting frame, the two accommodating boxes are fixedly connected to the side surface of the mounting frame, the contact part of the middle part of the elastic limiting sheet is used for abutting against the side surface of the server, and the two ends of the elastic limiting sheet are inserted into the corresponding accommodating boxes through the slanted groove; A first strip-shaped through groove is formed on the elastic limiting sheet, and one end of the first pin passes through the first strip-shaped through groove and is fixedly connected to the outer side wall of the mounting frame.

[0006] Preferably, the accommodating box comprises a box body, a guide optical axis is arranged on each of the upper and lower sides of the box body, a slidable sleeve is arranged on each of the guide optical axes, a connecting shaft is fixedly connected between the two sleeves, one end of the elastic limiting sheet inserted into the box body is fixedly connected with the connecting shaft, and a spring is connected between the inner wall of the box body and the connecting shaft.

[0007] Preferably, at least one second limiting assembly for limiting displacement of the server is further arranged on each of the opposite outer side walls of the mounting frame, and the second limiting assembly is arranged in the length direction of the mounting frame and spaced apart from the first limiting assembly. The second limiting assembly comprises two elastic plates symmetrically arranged, the middle part of the elastic plate is fastened to the side of the mounting frame by a fixing screw, a latch is arranged at the end of the elastic plate, a through hole is arranged on the side wall of the mounting frame for the latch to pass through, and the latch is used to be inserted into the pin hole on the side of the server after passing through the through hole.

[0008] Preferably, a cover plate is fixedly connected to the side of the mounting frame, the cover plate is used to connect the side plate of the cabinet, and the inner wall of the side plate of the cabinet is fixedly connected with a cabinet support frame.

[0009] Preferably, the anti-derailing moving assembly is further arranged on the cabinet support frame and connected with the mounting frame to drive the forward and backward displacement of the mounting frame.

[0010] Preferably, the anti-derailing moving assembly comprises a first housing fixedly connected with the cabinet support frame and a second housing fixedly connected with the side of the mounting frame. A first guide rail is horizontally arranged in the first housing, a second guide rail is horizontally arranged in the second housing, and the second housing is slidingly connected with the first housing. An active slot is arranged on the bottom of the first housing and the top of the second housing respectively, a slide seat assembly is arranged between the first guide rail and the second guide rail, the top of the slide seat assembly is slidingly connected with the first guide rail, and the bottom of the slide seat assembly is slidingly connected with the second guide rail.

[0011] Preferably, the slide seat assembly comprises a first connecting bracket, a second connecting bracket is fixedly connected to each of the four corners of the first connecting bracket, a rotatable V-shaped guide wheel is arranged on each of the upper and lower sides of the second connecting bracket, and the two V-shaped guide wheels arranged on the same second connecting bracket are in rolling contact with the upper and lower sides of the first guide rail or the second guide rail.

[0012] Preferably, the anti-derailing moving assembly further comprises a first driving assembly, the first driving assembly comprises a third shell fixedly connected to the bottom of the first shell, a winding wheel and a right-angle shaft reduction motor for driving the winding wheel to rotate are installed in the third shell, a traction rope is wound on the winding wheel, a pulley is installed in the first shell, and the traction rope is fixedly connected to the side of the first connecting support of the sliding seat assembly after passing through the first shell and around the pulley.

[0013] Preferably, a rack is horizontally installed in the first shell. The sliding seat assembly comprises a first connecting support, one second connecting support is fixedly connected to each side of the top of the first connecting support, one rotatable V-shaped guide wheel is installed on each of the upper and lower sides of the second connecting support, and the two V-shaped guide wheels on the same second connecting support are in rolling contact with the upper and lower sides of the second guide rail. A containing groove is formed in the sliding seat assembly, a second driving assembly is installed in the containing groove, the driving assembly comprises a helical gear meshing with the rack, a worm meshing with the helical gear, and a servo motor for driving the worm to rotate, the servo motor is fixed to the inner wall of the containing groove, the worm is supported on the inner wall of the containing groove through bearings at both ends, and the helical gear is rotatably connected to the inner wall of the containing groove.

[0014] Preferably, a hinge is installed on the mounting frame, and a reversible handle is installed on the hinge.

[0015] A cabinet rear cover is installed on the cabinet support frame, a second strip-shaped through groove is formed in the cabinet rear cover, and the mounting frame can pass through the second strip-shaped through groove.

[0016] The beneficial effects of the present application are: Firstly, the present application provides a screw-free fixing structure, when the server is pushed into the mounting frame, the side surface of the server extrudes the contact part of the elastic limiting piece, forcing the elastic limiting piece to deform laterally and displace vertically under the guidance of the first column pin and the elasticity of the elastic limiting piece, thereby automatically clamping the server, realizing the "plug and play" of the server, and eliminating the need for tools during the installation process, greatly simplifying the operation steps and improving the installation and disassembly efficiency. The structure is simple and easy to implement, and solves the problem of traditional screw fixing.

[0017] Secondly, a precise buffering and force increasing mechanism composed of a guide optical axis, a sleeve, a connecting shaft and a spring is added, the spring force and the elasticity of the elastic limiting piece are superimposed, which significantly enhances the strength, stability and adjustability of the clamping force. It can more effectively resist vibration, prevent loosening, avoid damage to the server caused by excessive initial pressure, and improve the reliability and durability of the fixing system.

[0018] Third, a second limiting assembly consisting of a flexible plate, fixing screws, and pins is added, providing an independent physical locking mechanism as a powerful supplement to the elastic clamping. This mechanical interlock provides a higher level of safety, effectively preventing server displacement under extreme conditions, and is suitable for harsh environments with extremely high requirements for fixed reliability.

[0019] IV. The mounting frame and cabinet are connected by an anti-derailment moving component (including a slide and guide rail), and the traction rope is wound and released by a motor-driven winding wheel, realizing automated pulling of the server and achieving convenient operation from fixed to moving. Fixed installation requires no tools, and moving can be controlled electrically with one button, greatly reducing the physical burden on maintenance personnel and improving operational accuracy and efficiency. It is particularly suitable for high-density deployment and cabinet environments that require frequent maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the handle strip of the present invention; Figure 2 For the present invention Figure 1 A top-view structural diagram; Figure 3 For the present invention Figure 1 Side view; Figure 4 This is a schematic diagram of the internal structure of the container box of the present invention; Figure 5 This is a schematic diagram of the connection structure of the second limiting component of the present invention; Figure 6 This is an overall schematic diagram of the mounting frame of the present invention installed in the cabinet. Figure 7 For the present invention Figure 6 A top-view structural diagram; Figure 8 This is a schematic diagram of the structure of the first anti-derailment moving component of the present invention; Figure 9 This is a schematic diagram of the second type of anti-derailment moving component structure of the present invention; In the diagram, 1. Mounting frame; 101. Inclined groove; 102. Through hole; 2. Support bar; 3. First limiting assembly; 31. Elastic limiting plate; 311. Contact part; 312. First strip-shaped through groove; 32. First pin; 33. Receiving box; 331. Box body; 332. Spring; 333. Guide optical axis; 334. Sleeve; 335. Connecting shaft; 4. Handle; 5. Hinge; 6. Second limiting assembly; 61. Pin; 62. Elastic plate; 63. Fixing screw; 7. Cover plate; 8. Anti-derailment moving assembly; 81. First housing; 82. Second housing 83. Body; 84. First guide rail; 85. Second guide rail; 86. Slide assembly; 87. V-shaped guide wheel; 88. First connecting bracket; 89. Second connecting bracket; 80. First drive assembly; 81. Third housing; 82. Right-angle shaft geared motor; 83. Winding wheel; 864. Traction rope; 87. Second drive assembly; 88. Helical gear; 89. Worm gear; 80. Servo motor; 81. Rack; 82. Movable slot; 9. Cabinet side panel; 10. Cabinet support frame; 11. Cabinet rear cover; 1101. Second strip through slot. Detailed Implementation

[0021] Example 1: like Figures 1-3 As shown, this embodiment provides a screwless server handle strip, which mainly consists of a mounting frame 1. The mounting frame 1 has a rectangular first receiving cavity inside, specifically for placing the server body. To support the server and prevent it from sagging, a support strip 2 is fixedly installed at the bottom of the first receiving cavity.

[0022] To achieve screwless and rapid fixing, at least one first limiting component 3 is installed on the outer walls of both the left and right sides of the mounting frame 1. The core of each first limiting component 3 is a U-shaped elastic limiting piece 31. Symmetrical inclined grooves 101 are formed on the sides of the mounting frame 1, and two receiving boxes 33 are fixed to the outer side of the mounting frame 1. The extensions at both ends of the elastic limiting piece 31 pass through these two inclined grooves 101 and are inserted into the corresponding receiving boxes 33. Simultaneously, the elastic limiting piece 31 has an inwardly protruding contact portion 311 in its center.

[0023] When the server is horizontally inserted into the first receiving cavity of the mounting frame 1, its sides press against the contact portion 311 of the elastic limiting piece 31. Since both ends of the elastic limiting piece 31 are constrained by the receiving box 33, the pressure in the middle forces the elastic limiting piece 31 to undergo lateral elastic deformation. Simultaneously, guided by the first pin 32 passing through the first strip-shaped through-slot 312 on the elastic limiting piece 31, both ends of the elastic limiting piece 31 will experience slight longitudinal displacement along the inclined groove 101. This combined action of "lateral deformation generating clamping force" and "longitudinal displacement adapting to the insertion process" allows the elastic limiting piece 31 to automatically and tightly abut against the side of the server, firmly securing it within the mounting frame 1 without the need for any screws.

[0024] This embodiment achieves "plug-and-play" server installation through the aforementioned flexible limiting structure. The installation process requires no tools; simply pushing the server in completes the fixation, simplifying the operation and improving maintenance efficiency. It is suitable for scenarios requiring frequent server hardware replacements.

[0025] Example 2: This embodiment optimizes the structure of the receiving box 33 based on embodiment 1, such as... Figure 4 As shown, the housing 33 includes a closed housing 331. A guide shaft 333 is fixed to each of the upper and lower inner walls of the housing 331. A sleeve 334, which can slide along each guide shaft 333, is fitted onto each guide shaft 333. The upper and lower sleeves 334 are rigidly connected as one unit by a connecting shaft 335. The end of an elastic limiting piece 31 inserted into the housing 331 is fixed to the connecting shaft 335. Furthermore, a spring 332, in a compressed or pre-tightened state, is connected between the inner wall of the housing 331 (e.g., the left side wall) and the connecting shaft 335.

[0026] When the server is inserted and presses against the elastic limiting piece 31, the force is transmitted to the sleeves 334 on both sides through the connecting shaft 335, causing them to slide along the guide optical axis 333 and further compress the spring 332. Once the server is in place, the potential energy stored in the spring 332 is converted into a reverse thrust, which is evenly applied to both ends of the elastic limiting piece 31 through the connecting shaft 335 and the sleeves 334. This additional spring force, combined with the elastic force of the elastic limiting piece 31 itself, acts on the sides of the server, providing a stronger, more stable, and adjustable clamping force.

[0027] This embodiment significantly enhances the clamping effect and reliability of the first limiting component by introducing a precision buffering and force-amplifying mechanism consisting of a "guide optical axis-sleeve-spring". The spring force makes the fixation more secure and effectively resists vibration; at the same time, this structure makes the clamping force controllable, ensuring both fixation strength and preventing damage to the server casing due to excessive initial deformation pressure.

[0028] Example 3: This embodiment adds an auxiliary mechanical locking device, namely a second limiting component 6, to embodiment 1 or 2. The second limiting component 6 and the first limiting component 3 are spaced apart along the length of the mounting frame 1, as shown below. Figure 4 As shown. This assembly is mounted on the outer wall of the mounting frame 1 and includes two symmetrically distributed elastic plates 62 (such as metal springs). The middle of each elastic plate 62 is fastened to the mounting frame 1 by a fixing screw 63, so that its end can be turned like a lever. A pin 61 is installed at the end of the elastic plate 62. Correspondingly, a through hole 102 is formed in the side wall of the mounting frame 1.

[0029] Pin holes are pre-set at corresponding positions on the side of the server. After the server is inserted into the mounting frame 1 and initially fixed by the first limiting component 3, the operator can manually push the pins 61 on both sides into the through holes 102, and finally insert them into the pin holes of the server. Due to the elasticity of the elastic plate 62, the pins 61 can maintain a stable locked state. When disassembly is required, simply use your fingers to simultaneously push the free ends of the two elastic plates 62 outwards to disengage the pins 61 from the pin holes of the server, and then the server can be pulled out.

[0030] This embodiment provides a physical locking mechanism as a supplement to elastic clamping. The second limiting component 6 is equivalent to a manually operated "safety bolt," providing absolutely reliable mechanical interlocking to prevent the server from shifting under extreme vibration or accidental pulling, further enhancing the security of the equipment fixation, and is suitable for environments with extremely high reliability requirements.

[0031] Example 4: This embodiment integrates screwless fixing and electric sliding functions into one unit. For example... Figures 6-8 As shown, a cover plate 7 is fixedly connected to the side of the mounting frame 1. The cover plate 7 is used to connect the cabinet side panel 9. A cabinet support frame 10 is fixed to the inner wall of the cabinet side panel 9. Based on the mounting frame 1 being connected to the cabinet through the cover plate 7, the entire handle strip device also includes a set of anti-derailment moving components 8.

[0032] The anti-derailment moving assembly 8 includes a first housing 81 fixed to the cabinet support frame 10 and a second housing 82 that slides relative to the first housing 81. The first housing 81 contains a first guide rail 83, and the second housing 82 contains a second guide rail 84. A sliding assembly 85 is located between the two, with a V-shaped guide wheel 851 at its top engaging with the first guide rail 83 and a V-shaped guide wheel 851 at its bottom engaging with the second guide rail 84, thereby enabling the second housing 82 (which drives the mounting frame 1 and the server) to slide smoothly relative to the first housing 81 (fixed to the cabinet).

[0033] To reliably lock the server when it is pulled out or pushed into its extreme position, preventing accidental slippage, a first drive assembly 86 is also provided. This includes a third housing 861 mounted at the bottom of the first housing 81, housing a right-angle shaft geared motor 862 and a winding reel 863. The right-angle shaft geared motor 862 drives the winding reel 863 to wind and unwind a traction rope 864. The traction rope 864 passes around a pulley inside the first housing 81 and is finally fixed to the first connecting bracket 852 of the slide assembly 85. Activating the right-angle shaft geared motor 862 automatically pulls the server out or pushes it into the rack by wind and unwinding the rope.

[0034] This embodiment simplifies the entire process of server installation, fixing, and removal. Fixing relies on flexible limiters, requiring no tools; moving is achieved through electric control with one-button operation, making it particularly suitable for high-density server rack deployments. It significantly reduces the physical burden on maintenance personnel and improves operational accuracy and efficiency.

[0035] Example 5: This embodiment provides another high-precision, high-load electric translation solution. For example... Figure 9 As shown, a horizontal rack 874 is fixedly installed inside the first housing 81 of its anti-derailment moving assembly 8.

[0036] The slide assembly 85 has an internal receiving slot that integrates the second drive assembly 87. This drive assembly includes a helical gear 871 that precisely meshes with a rack 874, a worm gear 872 that meshes perpendicularly with the helical gear 871, and a servo motor 873 that drives the worm gear 872. The slide assembly 85 is rollably connected to the second guide rail 84 within the second housing 82 via a set of V-shaped guide wheels 851 at its top.

[0037] During operation, the servo motor 873 drives the worm gear 872 to rotate, which in turn drives the helical gear 871 to rotate. Since the helical gear 871 meshes with the fixed rack 874, according to the gear and rack transmission principle, the slide assembly 85 will move linearly along the rack 874, thereby driving the mounting frame 1 and the server to move back and forth through its connection with the second housing 82. The worm gear pair has a reverse self-locking characteristic and can reliably stop at any position.

[0038] This embodiment employs a transmission scheme of "servo motor + worm gear + rack and pinion," which offers advantages such as high transmission accuracy, strong load-bearing capacity, smooth operation, precise positioning, and power-off self-locking. It is particularly suitable for heavy-duty servers or applications requiring precise control of the pull-out position (such as docking with backplane interfaces).

[0039] Example 6: This example focuses on facilitating manual pulling of the installation frame 1, such as... Figure 1As shown. On the front of the mounting frame 1, a handle 4 that can flip left and right is mounted via a hinge 5. The hinge 5 can be a hinge or a pivot structure.

[0040] Under normal conditions, when the server is fully pushed into the rack, handle 4 can be flipped inward to fit against the mounting frame 1, keeping the front of the rack flat, saving space and maintaining a neat appearance. When manual operation of the server is required, flipping handle 4 outward provides a comfortable point of leverage, making it easy for maintenance personnel to manually pull out or push the server in.

Claims

1. A screwless server handle strip, characterized in that, The system includes a mounting frame (1), which has a first receiving cavity for accommodating the server inside. A support bar (2) is installed at the bottom of the first receiving cavity. At least one first limiting component (3) for limiting the displacement of the server is installed on each of the two opposite outer walls of the mounting frame (1). The first limiting component (3) includes an elastic limiting piece (31), a first pin (32) and two receiving boxes (33). The mounting frame (1) has symmetrically opened inclined grooves (101) on its side. The two receiving boxes (33) are fixedly connected to the side of the mounting frame (1). The elastic limiting piece (31) has a contact part (311) in the middle. The contact part (311) abuts against the side of the server. The two ends of the elastic limiting piece (31) pass through the inclined grooves (101) and are inserted into the corresponding receiving boxes (33). The elastic limiting piece (31) has a first strip-shaped through groove (312), and the first pin (32) passes through one end of the first strip-shaped through groove (312) and is fixedly connected to the outer wall of the mounting frame (1).

2. The screwless server handle strip according to claim 1, characterized in that, The container (33) includes a box body (331), with a guide optical shaft (333) installed on each of the upper and lower sides of the box body (331). Each guide optical shaft (333) is fitted with a slidable sleeve (334), and a connecting shaft (335) is fixedly connected between the two sleeves (334). One end of the elastic limiting piece (31) inserted into the box body (331) is fixedly connected to the connecting shaft (335), and a spring (332) is connected between the inner wall of the box body (331) and the connecting shaft (335).

3. The screwless server handle strip according to claim 1, characterized in that, At least one second limiting component (6) for limiting the displacement of the server is also installed on each of the two opposite outer side walls of the mounting frame (1). The second limiting component (6) and the first limiting component (3) are spaced apart along the length direction of the mounting frame (1). The second limiting component (6) includes two symmetrically distributed elastic plates (62). The middle part of the elastic plate (62) is fastened to the side of the mounting frame (1) by a fixing screw (63). A pin (61) is installed at the end of the elastic plate (62). A through hole (102) is provided on the side wall of the mounting frame (1) for the pin (61) to pass through. The pin (61) is used to pass through the through hole (102) and then insert into the pin hole on the side of the server.

4. A screwless server handle strip according to claim 1, characterized in that, The mounting frame (1) is fixedly connected to a cover plate (7) on its side. The cover plate (7) is used to connect the cabinet side panel (9). The cabinet support frame (10) is fixed to the inner wall of the cabinet side panel (9).

5. A screwless server handle strip according to claim 4, characterized in that, It also includes an anti-derailment moving component (8), which is installed on the cabinet support frame (10) and connected to the mounting frame (1) to drive its front and rear displacement.

6. A screwless server handle strip according to claim 5, characterized in that, The anti-derailment moving component (8) includes a first housing (81) fixedly connected to the cabinet support frame (10) and a second housing (82) fixedly connected to the side of the mounting frame (1). A first guide rail (83) is horizontally installed inside the first housing (81), and a second guide rail (84) is installed inside the second housing (82). The second housing (82) is slidably connected to the first housing (81). The bottom of the first housing (81) and the top of the second housing (82) are respectively provided with movable grooves (88). A slide assembly (85) is provided between the first guide rail (83) and the second guide rail (84). The top of the slide assembly (85) is slidably connected to the first guide rail (83), and the bottom of the slide assembly (85) is slidably connected to the second guide rail (84).

7. A screwless server handle strip according to claim 6, characterized in that, The slide assembly (85) includes a first connecting bracket (852), and a second connecting bracket (853) is fixedly connected to each of the four corners of the first connecting bracket (852). A rotatable V-shaped guide wheel (851) is installed on the upper and lower sides of the second connecting bracket (853). The two V-shaped guide wheels (851) located on the same second connecting bracket (853) are in rolling contact with the upper and lower sides of the first guide rail (83) or the second guide rail (84), respectively.

8. A screwless server handle strip according to claim 6, characterized in that, The anti-derailment moving assembly (8) further includes a first drive assembly (86), which includes a third housing (861) fixedly connected to the bottom of the first housing (81). The third housing (861) is equipped with a winding wheel (863) and a right-angle shaft reduction motor (862) for driving the winding wheel (863) to rotate. A traction rope (864) is wound on the winding wheel (863). A pulley is installed in the first housing (81). The traction rope (864) passes through the first housing (81) and around the pulley, and is fixedly connected to the side of the first connecting bracket (852) of the slide assembly (85).

9. A screwless server handle strip according to claim 6, characterized in that, A rack (874) is horizontally installed inside the first housing (81); The slide assembly (85) includes a first connecting bracket (852), and a second connecting bracket (853) is fixedly connected to each of the top two sides of the first connecting bracket (852). A rotatable V-shaped guide wheel (851) is installed on each of the upper and lower sides of the second connecting bracket (853). The two V-shaped guide wheels (851) located on the same second connecting bracket (853) are in rolling contact with the upper and lower sides of the second guide rail (84). The slide assembly (85) has an internal receiving groove, and a second drive assembly (87) is installed in the receiving groove. The drive assembly includes a helical gear (871) meshing with the rack (874), a worm gear (872) meshing with the helical gear (871), and a servo motor (873) for driving the worm gear (872) to rotate. The servo motor (873) is fixed to the inner wall of the receiving groove, and the two ends of the worm gear (872) are supported on the inner wall of the receiving groove by bearings. The helical gear (871) is rotatably connected to the inner wall of the receiving groove.

10. A screwless server handle strip according to claim 5, characterized in that, A hinge (5) is mounted on the mounting frame (1), and a flip-up handle (4) is mounted on the hinge (5). A cabinet back cover (11) is installed on the cabinet support frame (10). A second strip-shaped through groove (1101) is provided on the cabinet back cover (11). The second strip-shaped through groove (1101) allows the mounting frame (1) to pass through.

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