Cabinet door fixing device

Abstract

This invention provides a cabinet door fixing device, including a fixing block, a connecting rod slider mechanism, and a guide member. The fixing block is fastened to the cabinet frame, the guide member is arranged on one side of the cabinet door, and the connecting rod slider mechanism is arranged within and slidably connected to the guide member. The fixing block has a locking structure, and the connecting rod slider mechanism has a slider structure that is engaged within the locking structure and can slide along the depth direction of the locking structure. The depth of the locking structure is less than the stroke of the connecting rod slider mechanism. The cabinet door fixing device provided by this invention uses a slider instead of a roller, and the groove structure that mates with the slider is in a closed state. The slider is mounted on the connecting rod through a movable connection structure, which satisfies the fixing strength while allowing for an arbitrary increase in the number of fixing points, thereby solving the problems of reliability and sealing of cabinet door installation in vibration environments.

Description

Technical Field

[0001] This invention relates to the field of frequency converter cabinet technology, specifically to a cabinet door fixing device. Background Art

[0002] To facilitate the disassembly and maintenance of internal components, industrial frequency converter cabinets typically feature doors with hinges on one side and a lock on the other. The lock side of the cabinet door generally uses upper and lower connecting rods, with rollers at the ends of the rods for locking. While traditional door installation structures are simple, the combination of rollers and semi-open grooves generally results in weak installation strength. In environments with vibration, this can easily cause the cabinet door to wobble. Furthermore, only the upper and lower rollers and the middle part of the lock provide three points of fixation. Due to structural limitations, even if the cabinet door is tall, it's impossible to add an additional fixing point in the middle for enhanced stability. The higher the door, the less secure the lock becomes, affecting the tightness of the door seal and reducing the cabinet's protection level. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a cabinet door fixing device that uses a slider instead of a roller, and the groove structure that cooperates with the slider is in a closed state. The slider is installed on the connecting rod through a movable connection structure, which satisfies the fixing strength while allowing the number of fixing points to be increased arbitrarily, thereby solving the problems of the reliability of cabinet door installation in vibration environment and the sealing of cabinet door.

[0004] To solve the above-mentioned technical problems, the technical solution proposed by this invention is as follows:

[0005] A cabinet door fixing device includes a fixing block, a linkage slider mechanism, and a guide member. The fixing block is fastened to the cabinet frame, the guide member is arranged on one side of the cabinet door, the linkage slider mechanism is arranged inside the guide member and slidably connected to it, the fixing block is provided with a locking structure, and the linkage slider mechanism has a slider structure that is locked in the locking structure and can slide along the depth direction of the locking structure. The depth of the locking structure is less than the stroke of the linkage slider mechanism.

[0006] According to the cabinet door fixing device of the present invention, a linkage slider mechanism is used instead of the original roller structure. The closed structure is inserted into the fixing block, and the linkage slider mechanism adopts a movable connection structure. While meeting the fixing strength, the number of fixings can be increased arbitrarily, thereby solving the problems of the reliability of cabinet door installation in vibration environment and the sealing of cabinet door.

[0007] The above technical solution can be further improved as described below.

[0008] According to a preferred embodiment of the cabinet door fixing device of the present invention, the linkage slider mechanism includes a linkage and a door lock, wherein the linkage is arranged opposite to both ends of the door lock and is respectively inserted into the door lock, and the slider structure is evenly spaced on the linkage.

[0009] The aforementioned linkage-slider structure is stable and reliable, and can slide well in conjunction with the guide component.

[0010] Specifically, in a preferred embodiment, the slider structure includes a first slider and a second slider, which are arranged opposite to each other on both sides of the connecting rod. The top of both the first slider and the second slider is provided with a locking strip structure that can cooperate with the locking structure.

[0011] The slider structure described above is not only structurally stable and reliable, but also can be well engaged with the fixed block.

[0012] Furthermore, in a preferred embodiment, both the first slider and the second slider are rectangular block structures, and rectangular notches are provided at both ends of the first slider and the second slider, so that the card strip structure is rectangular.

[0013] The slider has a rectangular structure, which makes installation easy. It has chamfered edges on the sides to facilitate sliding in and out. The rectangular structure is stronger than rollers, making it particularly suitable for environments with vibration.

[0014] Specifically, in a preferred embodiment, the bayonet structure is rectangular.

[0015] Specifically, the fixed block has rectangular notches at the top and bottom, forming a closed state, and has a symmetrical structure to meet the connection and fixation requirements of the connecting rod when it moves up and down. After the slider structure enters the fixed block, it is restricted to a small gap on all sides, which makes the overall structure of the fixing device have good strength.

[0016] Furthermore, in a preferred embodiment, the bayonet structure has chamfered structures on both sides, and the corresponding card strip structure has chamfered structures on both sides.

[0017] Furthermore, the rectangular bayonet has chamfered edges on both sides to facilitate the sliding of the slider and also to make the production of the fixing block easier. There is an internal thread mounting hole on the back for easy installation and fixing.

[0018] Specifically, in a preferred embodiment, the first slider and the second slider are provided with mounting holes opposite to each other, and one of the mounting holes has a stepped structure.

[0019] Specifically, the first slider and the second slider are installed by means of a stepped hole and a threaded hole. After being tightened by a fixing screw, the head of the fixing screw is always located inside the stepped hole, so as to avoid affecting the working performance of the slider.

[0020] Furthermore, in a preferred embodiment, the connecting rod is a rectangular flat plate structure.

[0021] In the linkage-slider mechanism, the connecting rods all adopt a rectangular flat plate structure, which differs from the commonly used cylindrical structure. This facilitates fixing by drilling holes in the rectangular flat plate structure, allowing for an arbitrary increase in the number of fixing points, thereby solving the reliability problem of cabinet door installation in vibration environments. Furthermore, in a preferred embodiment, the fixing block is a rectangular block structure with bayonet structures located at both ends of the fixing block, and a through groove is provided on the side of the fixing block closest to the linkage-slider mechanism.

[0022] The aforementioned fixed block has a simple structure, is easy to manufacture, and has a stable and reliable connection with the cabinet frame, facilitating the operation of the linkage slider structure.

[0023] Specifically, in a preferred embodiment, the guide is a U-shaped groove structure.

[0024] The door guide has a U-shaped sealing groove structure, which ensures that the slider structure is always within the U-shaped sealing groove structure when the door is open or closed, thereby greatly ensuring the structural stability and sealing performance of the entire fixing device.

[0025] Compared with the prior art, the advantages of the present invention are: a slider is used instead of a roller, and the groove structure that cooperates with the slider is in a closed state. The slider is installed on the connecting rod through a movable connection structure, which satisfies the fixing strength while allowing for an arbitrary increase in the number of fixing points, thereby solving the problems of the reliability of cabinet door installation in vibration environment and the sealing of cabinet door. Attached Figure Description

[0026] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0027] Figure 1 The diagram illustrates the open state of the cabinet door fixing device according to an embodiment of the present invention;

[0028] Figure 2 The diagram illustrates the closed state of the cabinet door fixing device according to an embodiment of the present invention;

[0029] Figure 3 The diagram schematically shows a partially enlarged structure of the cabinet door fixing device according to an embodiment of the present invention;

[0030] Figure 4 Schematic representation Figure 3 Sectional view in direction A;

[0031] Figure 5 The schematic diagram illustrates the overall structure of the fixing block in an embodiment of the present invention;

[0032] Figure 6 The schematic diagram illustrates the overall structure of the fixing block in another direction in an embodiment of the present invention;

[0033] Figure 7 The schematic diagram illustrates the overall structure of the linkage-slider mechanism in an embodiment of the present invention;

[0034] Figure 8 The diagram schematically shows an enlarged view of the slider structure in an embodiment of the present invention;

[0035] Figure 9 The schematic diagram illustrates the overall structure of the first slider in an embodiment of the present invention;

[0036] Figure 10 The schematic diagram illustrates the overall structure of the second slider in an embodiment of the present invention;

[0037] Figure 11 The schematic diagram illustrates the overall structure of the guide component in an embodiment of the present invention.

[0038] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection of the present invention.

[0040] Figure 1 The diagram illustrates the open state of the cabinet door fixing device 10 according to an embodiment of the present invention. Figure 2 The diagram illustrates the closed state of the cabinet door fixing device 10 according to an embodiment of the present invention. Figure 3 The diagram schematically shows a partially enlarged structure of the cabinet door fixing device 10 according to an embodiment of the present invention. Figure 4 Schematic representation Figure 3 Sectional view of A direction. Figure 5 The schematic diagram illustrates the overall structure of the fixing block 1 in an embodiment of the present invention. Figure 6 The schematic diagram shows the overall structure of the fixing block 1 in another direction in an embodiment of the present invention. Figure 7 The schematic diagram illustrates the overall structure of the linkage slider mechanism in an embodiment of the present invention. Figure 8 The diagram schematically shows an enlarged view of the slider structure in an embodiment of the present invention. Figure 9 The schematic diagram illustrates the overall structure of the first slider in an embodiment of the present invention. Figure 10 The schematic diagram illustrates the overall structure of the second slider in an embodiment of the present invention. Figure 11 The schematic diagram illustrates the overall structure of the guide component in an embodiment of the present invention.

[0041] like Figures 1 to 4 , Figure 7As shown, the cabinet door fixing device 10 of this embodiment includes a fixing block 1, a connecting rod slider mechanism 2, and a guide member 3. The fixing block 1 is fastened to the cabinet frame by fastening screws 4. The cabinet frame has through holes, and the fastening screws 4 fix the fixing block 1 from the inside of the frame. The guide member 3 is arranged on one side of the cabinet door. The connecting rod slider mechanism 2 is arranged inside the guide member 3 and slidably connected to it. The fixing block 1 has a bayonet structure 11, and the connecting rod slider mechanism 2 has a slider structure 21 that is engaged within the bayonet structure 11 and can slide along the depth direction of the bayonet structure 11. The depth of the bayonet structure 11 is less than the stroke of the connecting rod slider mechanism 2. Specifically, when the cabinet door fixing device 10 is closed, the slider structure 21 enters the bayonet structure 11 to a depth H, where H must be less than the stroke of the connecting rod slider mechanism 2. This ensures that the door is reliably fixed while also allowing it to be opened normally.

[0042] According to an embodiment of the present invention, the cabinet door fixing device adopts a linkage slider mechanism instead of the original roller structure. The closed structure is inserted into the fixing block, and the linkage slider mechanism adopts a movable connection structure. While meeting the fixing strength, it can realize the arbitrary increase of the fixing quantity, thereby solving the problems of the reliability of cabinet door installation in vibration environment and the sealing performance of cabinet door.

[0043] like Figure 3 , Figure 4 and Figure 7 As shown, specifically in this embodiment, the linkage-slider mechanism 2 includes a linkage 22 and a door lock 23. The linkage 22 is arranged opposite to both ends of the door lock 23 and is inserted into the door lock 23 respectively. The slider structure 21 is evenly spaced on the linkage 22. The linkage-slider structure described above is stable and reliable, and can slide well with the guide member.

[0044] like Figures 8 to 10 As shown, specifically in this embodiment, the slider structure 21 includes a first slider 211 and a second slider 212, which are arranged opposite to each other on both sides of the connecting rod 12. The tops of both the first slider 211 and the second slider 212 are provided with locking strip structures 213 that can cooperate with the locking structure 11. This slider structure is not only structurally stable and reliable, but also can effectively engage with the fixed block. Furthermore, in this embodiment, both the first slider 211 and the second slider 212 are rectangular block structures, with rectangular notches at both ends, making the locking strip structure 213 rectangular. The rectangular structure of the slider facilitates installation, and the chamfered sides aid in sliding. Moreover, the rectangular structure has superior strength compared to rollers, making it particularly suitable for environments with vibration.

[0045] like Figure 5 and Figure 6As shown, specifically in this embodiment, the bayonet structure 11 is rectangular. Specifically, the fixing block has rectangular notches at the top and bottom, forming a closed state, and its symmetrical structure satisfies the connection and fixing requirements of the connecting rod during vertical movement. After the slider structure enters the fixing block, it is confined within a small gap on all sides, resulting in good overall structural strength of the fixing device. Furthermore, in this embodiment, the bayonet structure 11 has chamfered structures on both sides, and the corresponding sides of the locking strip structure also have chamfered structures. Furthermore, the chamfered structures on both sides of the rectangular bayonet facilitate the sliding in and out of the slider structure and also facilitate the production and processing of the fixing block. An internal threaded mounting hole is located on the back for convenient installation and fixing.

[0046] like Figure 5 and Figure 6 As shown, in this embodiment, the fixing block 1 is a rectangular block structure, with bayonet structures 11 located at both ends of the fixing block 1. A through groove 12 is provided on the side of the fixing block 1 near the connecting rod slider mechanism 2. The fixing block with the above-described structure is simple in structure, easy to process and manufacture, and has a stable and reliable connection with the cabinet frame, facilitating the operation of the connecting rod slider mechanism.

[0047] like Figure 9 and Figure 10 As shown, specifically in this embodiment, the first slider 211 and the second slider 212 are provided with mounting holes 214 opposite to each other, and one of the mounting holes 214 has a stepped structure. Specifically, the first slider 211 and the second slider 212 are installed through the step hole and the threaded hole. After being tightened by the fixing screw 4, it can be ensured that the head of the fixing screw 4 is always located inside the step hole, so as to avoid affecting the working performance of the slider.

[0048] like Figure 7 As shown, further, in this embodiment, the connecting rod 22 is a rectangular flat plate structure. The connecting rods in the connecting rod-slider mechanism all adopt a rectangular flat plate structure, which differs from the commonly used cylindrical structure. This facilitates fixing by drilling holes in the rectangular flat plate structure, allowing for an arbitrary increase in the number of fixing points, thereby solving the reliability problem of cabinet door installation in vibration environments.

[0049] Specifically, in this embodiment, the fixing block 1 is preferably made of metal or epoxy material and is fixed by an embedded nut or by changing the number of fixing holes. The connecting rod 22 can also adopt other shapes to achieve the above-mentioned effects.

[0050] like Figure 11 As shown, specifically in this embodiment, the guide 3 is a U-shaped sealing groove structure. The U-shaped sealing groove structure of the guide on the door ensures that the slider structure is always located within the U-shaped sealing groove structure when the door is open or closed, thereby greatly ensuring the structural stability and sealing performance of the entire fixing device.

[0051] As can be seen from the above embodiments, the cabinet door fixing device of the present invention uses a slider instead of a roller, and the groove structure that cooperates with the slider is in a closed state. The slider is installed on the connecting rod through a movable connection structure, which satisfies the fixing strength while allowing for an arbitrary increase in the number of fixing points, thereby solving the problems of the reliability of cabinet door installation in vibration environment and the sealing performance of cabinet door.

[0052] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A cabinet door fixing device, characterized in that, Includes a fixed block, a linkage slider mechanism, and guide components; among which, The fixing block is fastened to the cabinet frame, the guide is a U-shaped sealing groove structure and is arranged on one side of the cabinet door, the fixing block is a rectangular block structure, and the fixing block is provided with a rectangular and symmetrical locking structure. The linkage-slider mechanism is arranged inside the guide and slidably connected to it. The linkage-slider mechanism includes a linkage, a door lock, and a slider structure. The linkage is arranged opposite to both ends of the door lock and is respectively inserted into the door lock. The slider structure is evenly spaced on the linkage. The slider structure is always located inside the guide when the door is open or closed. The slider structure includes a first slider and a second slider. The first slider and the second slider are arranged opposite to both sides of the linkage. The top of the first slider and the second slider are provided with a locking strip structure that can cooperate with the bayonet structure. The first slider and the second slider are both rectangular block structures. The two ends of the first slider and the second slider are respectively provided with rectangular notches so that the locking strip structure is rectangular. The bayonet structure is in a closed state, and the depth of the bayonet structure is less than the stroke of the slider structure. The fixed block has a through groove on the side near the connecting rod slider mechanism. The slider structure can be locked in the bayonet structure and can slide along the depth direction of the bayonet structure. The depth of the bayonet structure is less than the stroke of the connecting rod slider mechanism.

2. The cabinet door fixing device according to claim 1, characterized in that, The bayonet structure has chamfered structures on both sides, and the corresponding card strip structure has chamfered structures on both sides.

3. The cabinet door fixing device according to claim 1, characterized in that, The first slider and the second slider are provided with mounting holes opposite each other, and one of the mounting holes has a stepped structure.

4. The cabinet door fixing device according to claim 1, characterized in that, The connecting rod is a rectangular flat plate structure.

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