Guide rail anti-falling structure of drawer type low-voltage cabinet

Abstract

The utility model relates to a guide rail anti-drop structure of a drawer type low-voltage cabinet, which comprises a main cabinet body, a plurality of placing grooves are arranged in the main cabinet body, drawer bodies are arranged in the placing grooves in a sliding manner, and guide rail blocks are fixedly mounted on the left wall and the right wall of each placing groove. Sliding blocks are fixedly installed on the left side and the right side of the drawer body correspondingly, and anti-disengaging assemblies are arranged on the inner walls of the two guide rail blocks. According to the guide rail anti-falling structure of the drawer type low-voltage cabinet, the anti-falling assembly and the primary pre-limiting stage are arranged, and the middle section of the guide rail block is provided with the second fixing groove, the second spring and the hemispherical block forwards. When the drawer is pulled out to the half stroke, the hemispherical block moves upwards under the reset action of the second spring and is elastically clamped with the groove in the bottom of the drawer to form resistance, accidental slippage caused by slight external force is prevented, when the drawer is about to be pulled out of the containing groove, the second trapezoidal block moves forwards, and the inclined face of the first trapezoidal block drives the trapezoidal block to move upwards under the pressure of the rolling wheels.

Description

Technical Field

[0001] This utility model relates to the field of drawer-type low-pressure cabinet technology, specifically to a guide rail anti-detachment structure for a drawer-type low-pressure cabinet. Background Technology

[0002] In the fields of power systems and industrial power distribution, drawer-type low-voltage switchgear is widely used for the control and protection of various power distribution circuits due to its compact structure, convenient operation, and easy maintenance. The core function of this type of equipment relies on the smooth pull-out operation between the drawer unit and the cabinet, and the guide rail, as a key component connecting the drawer and the cabinet, directly determines the operational reliability of the low-voltage switchgear based on its stability and safety.

[0003] Traditional drawer-type low-pressure cabinets typically employ a single stop structure for their guide rail anti-slip design. This involves setting a fixed stop at the end of the guide rail, which, when the drawer is pulled to its limit, restricts its exit through rigid contact with the drawer's side. However, this rigid contact exacerbates potential safety hazards. The hard collision between the traditional stop and the drawer not only generates significant noise but also causes wear and deformation of the contact area over time, gradually weakening the anti-slip effect. Furthermore, the single stop makes drawer removal and maintenance quite cumbersome, requiring the stop to be disassembled. Therefore, a new guide rail anti-slip structure for drawer-type low-pressure cabinets is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a guide rail anti-detachment structure for a non-drawer-type low-pressure cabinet that employs a multi-level anti-detachment mechanism and allows drawers to be removed without disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guide rail anti-detachment structure for a drawer-type low-pressure cabinet, comprising a main cabinet body, wherein the main cabinet body has a plurality of placement slots inside, and a drawer body is slidably disposed inside the plurality of placement slots. Guide rail blocks are fixedly installed on the left and right walls of the placement slots, and sliders are fixedly installed on the left and right sides of the drawer body. Anti-detachment components are provided on the inner walls of two guide rail blocks, and a plurality of grooves are provided on the bottom wall of the drawer body.

[0006] The anti-detachment component includes a through groove, which is formed on the top wall of the guide rail block. A first fixing groove is formed on the inner wall of the guide rail block. A first spring is fixedly installed on the inner wall of the first fixing groove. A movable plate is fixedly installed at the bottom of the first spring. A support rod is fixedly installed on the bottom surface of the movable plate near the rear side. A first trapezoidal block is fixedly installed at the bottom of the support rod. A vertical rod is fixedly installed on the top of the slider. A second trapezoidal block is fixedly installed on the left side of the vertical rod. A support plate is fixedly installed on the inclined surface of the second trapezoidal block. A roller is rotatably mounted on the support plate via a rotating shaft. A first magnetic block is fixedly installed on the top surface of the movable plate near the front side. A second magnetic block is fixedly installed on the bottom surface of the first fixing groove near the front side. A plurality of second fixing grooves are formed on the bottom wall of the guide rail block. A second spring is fixedly installed inside each of the plurality of second fixing grooves. A hemispherical block is fixedly installed on the top of each of the plurality of second springs.

[0007] Furthermore, a control panel is fixedly installed on the left side surface of the cabinet, and the slider is slidably installed with the guide rail block.

[0008] Furthermore, a pull handle is fixedly installed on the front side of the drawer body.

[0009] Furthermore, the movable plate is slidably installed inside the first fixed groove, and the vertical rod extends through the through groove into the interior of the guide block.

[0010] Furthermore, the second trapezoidal block has a fixing groove inside, and the first trapezoidal block is adapted to the fixing groove.

[0011] Furthermore, the first magnetic block and the second magnetic block are positioned opposite each other and their magnetic properties are opposite. The hemispherical block is slidably installed inside the second fixing groove, and the hemispherical block is adapted to the groove. A plug is fixedly installed on the left side of the vertical rod. A limit block is fixedly installed on the top surface of the first trapezoidal block. A slot is opened inside the limit block, and the plug is adapted to the slot.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The anti-slip structure of this drawer-type low-pressure cabinet's guide rails utilizes anti-slip components. In the initial pre-limiting stage, a second fixing groove, a second spring, and a hemispherical block are positioned forward in the middle section of the guide rail block. When the drawer is pulled out halfway, the hemispherical block moves upward under the return action of the second spring, elastically engaging with the groove at the bottom of the drawer to create resistance and prevent accidental slippage due to slight external force. When the drawer is about to be pulled out of the placement slot, the second trapezoidal block moves forward, and the inclined surface of the first trapezoidal block is driven upward by the pressure of the rollers, compressing the first spring and reducing its return pressure. The speed at which the drawer is pulled out alerts the operator that the drawer is about to be fully extended. Once the rollers move in front of the first trapezoidal block, the first spring resets, causing the first trapezoidal block to move downwards and insert into the internal fixing slot of the second trapezoidal block, securing it. Simultaneously, the insert rod inserts into the limit block slot, fixing the entire structure and preventing the drawer from sliding out. For maintenance, first move the drawer backwards to disengage the insert rod from the limit block. Then, energize the first and second magnetic blocks; the magnetic attraction causes the moving plate to move upwards, disengaging the support rod from the first trapezoidal block and releasing the limit block. The drawer can then be pulled out for maintenance. This structure avoids damage from rigid contact caused by rapid pulling and allows the drawer to be removed without manual disassembly, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a perspective view of the cabinet body of this utility model;

[0015] Figure 2 This is a perspective view of the connection between the drawer body and the slider of this utility model;

[0016] Figure 3 This is a schematic diagram showing the connection between the placement groove and the guide rail block in this utility model;

[0017] Figure 4 This is a side sectional view of the slider of this utility model moving halfway to the guide rail block;

[0018] Figure 5 This is a side sectional view of the slider moving to the end of the guide block according to the present invention;

[0019] Figure 6 This utility model Figure 5 Enlarged view of point A in the middle;

[0020] Figure 7 This utility model Figure 4 Enlarged view of section B in the middle.

[0021] In the diagram: 1. Main cabinet body; 2. Placement slot; 3. Drawer body; 4. Control panel; 5. Guide rail block; 6. Slider; 7. Pull handle; 8. Groove; 9. Anti-slip component; 901. Through groove; 902. First fixing groove; 903. First spring; 904. Moving plate; 905. Support rod; 906. First trapezoidal block; 907. Vertical rod; 908. Second trapezoidal block; 909. Support plate; 910. Roller; 911. First magnetic block; 912. Second magnetic block; 913. Second fixing groove; 914. Second spring; 915. Hemispherical block; 916. Insert rod; 917. Limiting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-7 The guide rail anti-detachment structure of a drawer-type low-voltage cabinet in this embodiment includes a main cabinet body 1. The main cabinet body 1 has a number of placement slots 2 inside. A drawer body 3 is slidably arranged inside the placement slots 2. Guide rail blocks 5 are fixedly installed on the left and right walls of the placement slots 2. Slider blocks 6 are fixedly installed on the left and right sides of the drawer body 3. Anti-detachment components 9 are opened on the inner walls of the two guide rail blocks 5. A number of grooves 8 are opened on the bottom wall of the drawer body 3.

[0024] The anti-detachment component 9 includes a through groove 901, which is formed on the top wall of the guide rail block 5. A first fixing groove 902 is formed on the inner wall of the guide rail block 5. A first spring 903 is fixedly installed on the inner wall of the first fixing groove 902. A movable plate 904 is fixedly installed on the bottom of the first spring 903. A support rod 905 is fixedly installed on the bottom surface of the movable plate 904 near the rear side. A first trapezoidal block 906 is fixedly installed on the bottom of the support rod 905. A vertical rod 907 is fixedly installed on the top of the slider 6. A second trapezoidal block 908 is fixedly installed on the left side of the vertical rod 907. A support plate 909 is fixedly installed on the inclined surface of the second trapezoidal block 908. A roller 910 is rotatably installed on the support plate 909 via a rotating shaft. A first magnetic block 911 is fixedly installed on the top surface of the movable plate 904 near the front. A second magnetic block 912 is fixedly installed on the bottom surface of the first fixing groove 902 near the front. A number of second fixing grooves 913 are opened on the bottom wall of the guide rail block 5. A second spring 914 is fixedly installed inside each of the several second fixing grooves 913. A hemispherical block 915 is fixedly installed on the top of each of the several second springs 914.

[0025] like Figure 1 As shown, control panel 4 is an existing drawer-type low-pressure cabinet structure, so its function will not be described in detail here.

[0026] like Figure 1 As shown, the drawer body 3 is easily pulled out by the pull handle 7.

[0027] like Figure 4 and Figure 5 As shown, by providing a fixing groove inside the second trapezoidal block 908, the first trapezoidal block 906 can be inserted into the interior of the second trapezoidal block 908, and the two are fixed relative to each other.

[0028] like Figure 6 As shown, by setting the insert rod 916 and the limiting block 917, after the first trapezoidal block 906 is inserted into the fixing groove inside the second trapezoidal block 908, at the same time, the insert rod 916 will also be inserted into the slot inside the limiting block 917, thereby preventing the drawer body 3 from being pulled out directly.

[0029] When implementing this procedure, please follow these steps:

[0030] 1) First, perform the initial pre-limiting: Set the second fixing groove 913, the second spring 914 and the hemispherical block 915 forward in the middle section of the guide rail block 5. When the drawer is pulled out to halfway, the hemispherical block 915 moves upward through the reset action of the second spring 914 and elastically engages with the groove 8 at the bottom of the drawer body 3 to form resistance and prevent accidental slippage caused by slight external force.

[0031] 2) Then, as the drawer body 3 is about to be pulled out of the placement slot 2, as the second trapezoidal block 908 gradually moves forward, the inclined surface of the first trapezoidal block 906 will be pressured by the roller 910, which will drive the entire trapezoidal block to move upward, thereby compressing the first spring 903. Due to the reset pressure brought by the first spring 903, the speed at which the slider 6 is pulled out will be greatly reduced, reminding the staff that the drawer body 3 is about to be pulled to the end.

[0032] 3) When the roller 910 moves forward to the front of the first trapezoidal block 906, the first trapezoidal block 906 will move downward and insert into the fixing groove inside the second trapezoidal block 908 due to the reset action of the first spring 903, thereby fixing the second trapezoidal block 908. At this time, the plug rod 916 will also be inserted into the slot inside the limit block 917, thereby fixing the whole and preventing the drawer body 3 from sliding out.

[0033] 4) Finally, when it is necessary to slide the drawer body 3 out for maintenance, first move the drawer body 3 backward so that the insert rod 916 disengages from the limit block 917. Then, energize the first magnetic block 911 and the second magnetic block 912. Due to the magnetic attraction, the moving plate 904 moves upward, causing the support rod 905 and the first trapezoidal block 906 to disengage from the second trapezoidal block 908, so that the second trapezoidal block 908 loses its limit. Thus, the drawer body 3 can be pulled out.

[0034] In summary, the guide rail anti-slip structure of this drawer-type low-pressure cabinet, through the setting of anti-slip component 9, in the initial pre-limiting stage, includes a second fixing groove 913, a second spring 914, and a hemispherical block 915 arranged forward in the middle section of the guide rail block 5. When the drawer is pulled out halfway, the hemispherical block 915 moves upward under the reset action of the second spring 914, elastically engaging with the groove 8 at the bottom of the drawer, forming resistance and preventing accidental slippage due to slight external force. When the drawer is about to be pulled out of the placement groove 2, the second trapezoidal block 908 moves forward, and the inclined surface of the first trapezoidal block 906 is driven upward by the pressure of the roller 910, compressing the first spring 903. The reset pressure of the first spring 903 reduces the pulling speed of the slider 6, reminding the operator that the drawer is about to be fully pulled out. After the roller 910 moves to the front of the first trapezoidal block 906, the first spring 903 resets and drives the first trapezoidal block 906 to move downwards and insert into the fixing groove inside the second trapezoidal block 908, fixing the second trapezoidal block 908. At the same time, the insert rod 916 inserts into the slot of the limit block 917, fixing the whole and preventing the drawer from sliding out. During maintenance, first move the drawer backwards to disengage the insert rod 916 from the limit block 917, then energize the first magnetic block 911 and the second magnetic block 912. The magnetic attraction causes the moving plate 904 to move upwards, driving the support rod 905 to disengage from the first trapezoidal block 906 from the second trapezoidal block 908, releasing the limit. The drawer can then be pulled outwards for maintenance. This structure avoids rigid contact damage caused by rapid pulling and allows the drawer to be removed without manual disassembly, making it highly practical.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide rail anti-disengagement structure of a drawer type low voltage cabinet, comprising a main cabinet body (1), characterized in that: The main cabinet (1) has a number of placement slots (2) inside, and drawer bodies (3) are slidably arranged inside the placement slots (2). Guide rail blocks (5) are fixedly installed on the left and right walls of the placement slots (2). Slider blocks (6) are fixedly installed on the left and right sides of the drawer body (3). Anti-detachment components (9) are provided on the inner walls of the two guide rail blocks (5). The bottom wall of the drawer body (3) has a number of grooves (8). The anti-detachment component (9) includes a through groove (901), which is opened on the top wall of the guide block (5). A first fixing groove (902) is opened on the inner wall of the guide block (5). A first spring (903) is fixedly installed on the inner wall of the first fixing groove (902). A moving plate (904) is fixedly installed on the bottom of the first spring (903). A support rod (905) is fixedly installed on the bottom surface of the moving plate (904) near the rear side. A first trapezoidal block (906) is fixedly installed on the bottom of the support rod (905). A vertical rod (907) is fixedly installed on the top of the slider (6). A second trapezoidal block is fixedly installed on the left side of the vertical rod (907). (908), a support plate (909) is fixedly installed on the inclined surface of the second trapezoidal block (908). The support plate (909) is rotatably installed with a roller (910) via a rotating shaft. A first magnetic block (911) is fixedly installed on the top surface of the moving plate (904) near the front side. A second magnetic block (912) is fixedly installed on the bottom surface of the first fixing groove (902) near the front side. A number of second fixing grooves (913) are opened on the bottom wall of the guide rail block (5). A second spring (914) is fixedly installed inside each of the several second fixing grooves (913). A hemispherical block (915) is fixedly installed on the top of each of the several second springs (914).

2. The guide rail anti-detachment structure of a drawer-type low-voltage cabinet according to claim 1, characterized in that: The control panel (4) is fixedly installed on the left side surface of the cabinet, and the slider (6) is slidably installed with the guide rail block (5).

3. The drawer-type low-voltage cabinet guide rail anti-disengagement structure of claim 1, characterized in that: A pull handle (7) is fixedly installed on the front side of the drawer body (3).

4. The drawer-type low-voltage cabinet guide rail anti-disengagement structure of claim 1, characterized in that: The movable plate (904) is slidably installed inside the first fixed groove (902), and the vertical rod (907) extends through the through groove (901) to the inside of the guide block (5).

5. The drawer-type low-voltage cabinet guide rail anti-disengagement structure of claim 1, characterized in that: The second trapezoidal block (908) has a fixing groove inside, and the first trapezoidal block (906) is adapted to the fixing groove.

6. The drawer-type low-voltage cabinet guide rail anti-disengagement structure of claim 3, characterized in that: The first magnetic block (911) and the second magnetic block (912) are positioned opposite each other and their magnetic properties are opposite. The hemispherical block (915) is slidably installed inside the second fixing groove (913) and the hemispherical block (915) is adapted to the groove (8). A plug rod (916) is fixedly installed on the left side of the vertical rod (907). A limiting block (917) is fixedly installed on the top surface of the first trapezoidal block (906). A slot is opened inside the limiting block (917), and the plug rod (916) is adapted to the slot.

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