Drawer type switch cabinet guide rail anti-jamming double-guide limiting assembly

Abstract

The utility model relates to the technical field of switch cabinet equipment, and discloses a drawer type switch cabinet guide rail anti-jamming double-guide limiting assembly, which comprises mounting plates and a drawer block, mounting assemblies are arranged at the tops of the sides, far away from each other, of the two mounting plates, L-shaped grooves are formed in the adjacent sides of the two mounting plates, and the drawer block is arranged in the L-shaped grooves. L-shaped fixing plates are fixedly connected to the left side and the right side of the outer wall of the drawer block, sliding assemblies are arranged on the outer walls of the L-shaped fixing plates, connecting mechanisms are arranged at the bottoms of the mounting plates and used for guaranteeing that the mounting plates on the two sides are located at the same horizontal position during mounting, and lubricating quantifying mechanisms are arranged at the tops of the mounting plates. According to the utility model, the crossed connecting rods are hinged to the mounting plates, the positions of the sliding blocks above the crossed connecting rods in the sliding grooves are different when the crossed connecting rods are mounted in different widths, and meanwhile, the mounting plate on the other side can be automatically adjusted to be horizontal, so that the mounting plates on the two sides can be quickly positioned in the horizontal position during mounting.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, and in particular to a double guide limit component for anti-jamming of drawer-type switch cabinet guide rails. Background Technology

[0002] As an important power distribution device in the power system, the drawer-type switchgear uses a double-guide limit assembly with anti-jamming on the guide rails as the core component to ensure the reliable extraction and insertion of the drawer. This assembly constrains the movement trajectory of the drawer through a double-guide structure to prevent lateral deviation. Together with the limit device, it accurately positions the drawer, effectively avoiding problems such as poor contact and operational jamming caused by misalignment. This ensures the stable operation and safe operation of the power equipment and plays a key role in the reliability and ease of maintenance of the electrical system.

[0003] Early drawer-type switch cabinet guide rail anti-jamming dual guide limit components used a combination of fixed-specification metal guide rails and rigid limit blocks. The length, width, and installation spacing of the guide rails were all preset values, and could not be flexibly adjusted according to the internal space of the cabinet or the size of the drawer. In actual installation, this structure caused installation difficulties due to poor space adaptability and could not meet diverse usage needs. Existing technologies have introduced modular guide rails and micro-adjustable limit structures, which can achieve a certain degree of size adaptation by splicing guide rail modules or adjusting limit screws. However, the existing adjustment methods still have limitations, and can only be adjusted between a limited number of fixed positions, and cannot achieve continuous stepless adjustment. Since the existing guide rail adjustment structure mainly relies on preset slots or bolt holes for positioning, although it can initially adapt to different space requirements during operation, when facing complex and changing installation environments, its fixed adjustment positions are difficult to perfectly match the actual space. This results in excessive gaps or excessive tightness after the guide rail is installed, which not only affects the smoothness of drawer insertion and removal, but also reduces the service life of the guide rail due to stress concentration. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a drawer-type switch cabinet guide rail anti-jamming double guide limit component, which aims to improve the problem in the prior art that when facing complex and ever-changing installation environments, the fixed adjustment positions are difficult to perfectly match the actual space, resulting in excessive gaps or tightness after the guide rail is installed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a drawer-type switch cabinet guide rail anti-jamming double guide limit assembly, including a mounting plate and a drawer block. Mounting components are provided on the top of the opposite sides of the two mounting plates. L-shaped grooves are provided on adjacent sides of the two mounting plates. L-shaped fixing plates are fixedly connected to the left and right sides of the outer wall of the drawer block. Sliding components are provided on the outer walls of the L-shaped fixing plates. A connecting mechanism is provided at the bottom of the mounting plate to ensure that the mounting plates on both sides are at the same horizontal position during installation. A lubrication metering mechanism is provided at the top of the mounting plate to ensure lubrication above the rail.

[0006] The connecting mechanism includes a cross connecting rod. The top rear left and right ends of the cross connecting rod are rotatably connected to the bottom rear ends of the corresponding mounting plate. A sliding groove is provided on the bottom front side of the mounting plate. A slider is rotatably connected to the top front left and right ends of the cross connecting rod. The outer wall of the slider is slidably connected to the inner wall of the corresponding sliding groove. A buffer spring is fixedly connected to the upper and lower ends of the inner rear side of the mounting plate. An arc-shaped buffer block is fixedly connected to the front end of each of the two buffer springs.

[0007] As a further description of the above technical solution:

[0008] The lubrication metering mechanism includes two liquid storage tanks. The bottoms of the two liquid storage tanks are respectively fixedly connected to the top of the mounting plate. The bottom of the liquid storage tanks is connected to a connecting pipe. The bottom end of the outer wall of the connecting pipe passes through the top of the mounting plate and is fixedly connected to a sponge applicator block. The bottom of the inner wall of the liquid storage tank is fixedly connected to a partition. A moving block is slidably connected to the inner wall of the partition. An L-shaped strip is fixedly connected to the rear side of the moving block. The rear side of the L-shaped strip is fixedly connected to the top end of the corresponding arc-shaped buffer block.

[0009] As a further description of the above technical solution:

[0010] The mounting assembly includes two L-shaped clamping plates. The adjacent sides of the two L-shaped clamping plates are respectively fixedly connected to the top of the opposite side of the outer wall of the corresponding mounting plate. The inner wall of the L-shaped clamping plate is provided with a limiting plate. The outer wall of the limiting plate engages with the inner wall of the L-shaped clamping plate. The opposite side of the outer wall of each of the two limiting plates is fixedly connected with a limiting block. The inner wall of each limiting block is threaded with a fixing screw.

[0011] As a further description of the above technical solution:

[0012] The sliding assembly includes two perforated plates, the inner walls of which are respectively engaged with the inner walls of the corresponding L-shaped fixing plates. An L-shaped limiting strip is fixedly connected to the top of the opposite side of each of the two perforated plates. A rotating plate is rotatably connected to the rear end of the opposite side of each of the two perforated plates. A pulley is rotatably connected to the front and rear sides of the outer wall of the rotating plate, and the outer wall of the pulley is engaged with the inner wall of the L-shaped groove.

[0013] As a further description of the above technical solution:

[0014] A control device is fixedly connected to the middle of the inner wall of the drawer block. The front end of the control device passes through the front of the drawer block and is fixedly connected to a handle knob. A voltage instrument is fixedly connected to the right side of the front of the drawer block.

[0015] As a further description of the above technical solution:

[0016] Pull blocks are fixedly connected to the left and right sides of the front part of the drawer block, and a limiting hollow block is fixedly connected to the top front part of the drawer block. A transparent plate is fixedly connected to the front side of the inner wall of the limiting hollow block.

[0017] As a further description of the above technical solution:

[0018] A fixing plate is fixedly connected to the center of the front side of the drawer block, and multiple scale lines are opened on the front side of the fixing plate.

[0019] As a further description of the above technical solution:

[0020] Multiple heat dissipation holes are provided on the left and right sides of the outer wall of the drawer block, and multiple ventilation inclined holes are provided on the rear side of the drawer block.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when installing a mounting plate on one side, the cross connecting rod is hinged to the mounting plate. For installations of different widths, the position of the slider above it in the slide groove is different. At the same time, the mounting plate on the other side is automatically adjusted to be horizontal. The mounting plate is initially fixed in position using an L-shaped clamping plate and fixing screws. A limiting plate is inserted to restrict the lateral displacement of the mounting plate. When the drawer block is pulled out, the L-shaped fixing plate drives the perforated plate to move along the L-shaped groove. The pulley ensures that the drawer block is pulled out smoothly, thereby ensuring that the mounting plates on both sides can be quickly brought to a horizontal position during installation.

[0023] 2. In this invention, when the drawer block is pushed in, the pulley strikes the arc-shaped buffer block, causing it to move and pull the L-shaped strip, thus allowing the moving block to slide on the partition. The round hole above the moving block allows lubricating oil to flow in from the reservoir and connects to the connecting pipe during movement, delivering the lubricating oil to the sponge applicator. After absorbing the lubricating oil, the sponge applicator evenly applies it to the track surface, ensuring a measured flow of lubricating oil each time, avoiding waste and uneven application. Attached Figure Description

[0024] Figure 1 This is a perspective view of the anti-jamming double guide limit component for the drawer-type switch cabinet guide rail proposed in this utility model;

[0025] Figure 2 This is a front view of the anti-jamming dual guide limit assembly for drawer-type switch cabinet rails proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the cross connecting rod of the anti-jamming double guide limit assembly for the drawer-type switch cabinet guide rail proposed in this utility model.

[0027] Figure 4 This is an exploded view of the mounting plate of the anti-jamming dual guide limit assembly for the drawer-type switch cabinet rail proposed in this utility model;

[0028] Figure 5 This is an exploded view of the drawer of the anti-jamming double guide limit assembly for the drawer-type switch cabinet guide rail proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the mounting plate of the anti-jamming dual guide limit assembly for the drawer-type switch cabinet rail proposed in this utility model.

[0030] Figure 7 for Figure 6 A magnified view of point A.

[0031] The components include: 1. Mounting plate; 2. Connecting mechanism; 201. Cross connecting rod; 202. Slide groove; 203. Slider; 204. Buffer spring; 205. Arc-shaped buffer block; 3. Lubrication metering mechanism; 301. Liquid storage tank; 302. Connecting pipe; 303. Sponge application block; 304. Partition plate; 305. Moving block; 306. L-shaped strip; 4. Drawer block; 5. Mounting assembly; 501. L-shaped retaining plate; 502. Limiting plate. 503, Limiting block; 504, Fixing screw; 6, L-shaped groove; 7, L-shaped fixing plate; 8, Sliding assembly; 801, Perforated plate; 802, L-shaped limit strip; 803, Rotating plate; 804, Pulley; 9, Control device; 10, Operating knob; 11, Voltage instrument; 12, Pull block; 13, Limiting hollow block; 14, Transparent plate; 15, Fixing plate; 16, Scale line; 17, Heat dissipation hole; 18, Ventilation tilting hole. Detailed Implementation

[0032] 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.

[0033] Reference Figure 3 , Figure 4 and Figure 5This utility model provides an embodiment of a drawer-type switch cabinet guide rail anti-jamming double guide limit assembly, including mounting plates 1 and drawer blocks 4. Mounting components 5 are provided on the top of the opposite sides of the two mounting plates 1. L-shaped grooves 6 are provided on adjacent sides of the two mounting plates 1. L-shaped fixing plates 7 are fixedly connected to the left and right sides of the outer wall of the drawer block 4. Sliding components 8 are provided on the outer wall of the L-shaped fixing plates 7. A connecting mechanism 2 is provided at the bottom of the mounting plates 1 to ensure that the two mounting plates 1 are at the same horizontal position during installation. A lubrication metering mechanism 3 is provided at the top of the mounting plates 1 to ensure lubrication above the rail. The system includes a cross connecting rod 201, the left and right ends of the top rear side of the cross connecting rod 201 being rotatably connected to the bottom rear side of the corresponding mounting plate 1. When mounting plate 1 is installed on one side, the top rear side of the cross connecting rod 201 is hinged to the bottom rear side of the mounting plate 1. A groove 202 is provided on the bottom front side of the mounting plate 1. Slider 203 is rotatably connected to the left and right ends of the top front side of the cross connecting rod 201. The outer wall of the slider 203 is slidably connected to the inner wall of the corresponding groove 202. With different widths, the slider 203 slides in different positions in the groove 202, thereby pushing the cross connecting rod 201 to rotate around the hinge point, so that the two mounting plates 1 are automatically adjusted to the same level. To prevent guide rail tilting due to installation errors, buffer springs 204 are fixedly connected to the upper and lower ends of the rear side of the inner wall of the mounting plate 1. Arc-shaped buffer blocks 205 are fixedly connected to the front ends of both buffer springs 204. When the drawer block 4 is pushed back, it will impact the rear side of the mounting plate 1, causing vibration. At this time, the arc-shaped buffer blocks 205 are compressed by the buffer springs 204, using the deformation of the buffer springs 204 to absorb the vibration energy and prevent the vibration from affecting the smoothness of the drawer block 4's sliding. The mounting assembly 5 includes two L-shaped retaining plates 501. The adjacent sides of the two L-shaped retaining plates 501 are respectively fixedly connected to the top edge of the opposite side of the outer wall of the corresponding mounting plate 1. The inner wall of the mounting plate 1 is provided with a limiting plate 502. The outer wall of the limiting plate 502 engages with the inner wall of the L-shaped plate 501. The outer walls of the two limiting plates 502 are fixedly connected to the opposite side of each other with a limiting block 503. The inner wall of the limiting block 503 is threaded with a fixing screw 504. The L-shaped plate 501 is attached to the mounting surface of the cabinet. The fixing screw 504 in the limiting block 503 is used to initially fix the position of the mounting plate 1, so as to achieve quick positioning. Then the limiting plate 502 is inserted into the slot on the inner wall of the L-shaped plate 501. The limiting plate 502 restricts the lateral displacement of the mounting plate 1, ensuring that the mounting plate 1 is perpendicular to the cabinet and stable, and avoiding the guide rail from shifting due to loosening, which would affect the sliding of the drawer block 4.The sliding assembly 8 includes two perforated plates 801. The inner walls of the two perforated plates 801 are respectively engaged with the inner walls of the corresponding L-shaped fixed plates 7. The top ends of the opposite sides of the two perforated plates 801 are fixedly connected with L-shaped limiting strips 802. The rear ends of the opposite sides of the two perforated plates 801 are rotatably connected with rotating plates 803. The front and rear sides of the outer wall of the rotating plate 803 are rotatably connected with pulleys 804. The outer wall of the pulleys 804 is engaged with the inner wall of the L-shaped groove 6. The pulleys 804 rotate on the rotating plate 803 and contact the inner wall of the L-shaped groove 6, converting sliding friction into rolling friction, reducing resistance, ensuring smooth pulling of the drawer block 4. The rotating plate 803 can adaptively adjust the angle of the pulleys 804 to fit the contour of the inner wall of the L-shaped groove 6. Even if there is slight deformation of the guide rail, the pulleys 804 can remain engaged to prevent the drawer block 4 from coming off the track during the pulling process.

[0034] Specifically, when installing one side of the mounting plate 1, the top rear side of the cross connecting rod 201 is hinged to the bottom rear side of the mounting plate 1, and the front slider 203 is embedded in the slide groove 202. When the heights of the two mounting plates 1 are inconsistent, the slider 203 slides in the slide groove 202, pushing the cross connecting rod 201 to rotate around the hinge point, forcing the two mounting plates 1 to automatically adjust to the same horizontal position, avoiding tilting of the guide rail due to installation errors. During installation, the L-shaped card plate 501 is attached to the cabinet mounting surface, and the position of the mounting plate 1 is initially fixed by the fixing screw 504 in the limiting block 503 to achieve quick positioning. Then, the limiting plate 502 is inserted into the inner wall slot of the L-shaped card plate 501. The limiting plate 502 restricts the lateral displacement of the mounting plate 1, ensuring that the mounting plate 1 is perpendicular and stable to the cabinet, avoiding guide rail displacement due to loosening, which would affect the sliding of the drawer block 4. When the drawer block 4 is pulled out, the L-shaped card plate 502 is inserted into the cabinet mounting surface. The fixed plate 7 drives the perforated plate 801 to move along the L-shaped groove 6. The L-shaped limiting strip 802 is embedded in the top of the L-shaped groove 6 to prevent the perforated plate 801 from leaving the track. The pulley 804 rotates on the rotating plate 803 and contacts the inner wall of the L-shaped groove 6, converting sliding friction into rolling friction, reducing resistance, and ensuring that the drawer block 4 can be pulled out smoothly. The rotating plate 803 can adaptively adjust the angle of the pulley 804 to fit the contour of the inner wall of the L-shaped groove 6. Even if there is slight deformation of the guide rail, the pulley 804 can remain engaged to prevent the drawer block 4 from falling off the track during the pulling process. When the drawer block 4 is pushed back, it will hit the back of the mounting plate 1, which will cause vibration. At this time, the arc-shaped buffer block 205 is compressed by the buffer spring 204. The deformation of the buffer spring 204 absorbs the vibration energy to prevent the vibration from affecting the smoothness of the drawer block 4 and reduce the impact on the cabinet structure.

[0035] Reference Figure 1 , Figure 6 and Figure 7The lubrication dispensing mechanism 3 includes two liquid storage tanks 301. The bottoms of the two liquid storage tanks 301 are respectively fixedly connected to the top of the mounting plate 1. The bottom of the liquid storage tanks 301 is connected to a connecting pipe 302. The bottom end of the outer wall of the connecting pipe 302 passes through the top of the mounting plate 1 and is fixedly connected to a sponge applicator 303. The bottom of the inner wall of the liquid storage tank 301 is fixedly connected to a partition 304. A movable block 305 is slidably connected to the inner wall of the partition 304. Since there is a round hole above the movable block 305, the lubricating oil in the liquid storage tank 301 will flow into the round hole. When the movable block 305 moves, it will drive the lubricating oil in the hole to move together. At this time, the movable block... The hole above 305 is connected to the connecting pipe 302, and the lubricating oil in the hole flows to the sponge applicator 303 through the connecting pipe 302. After the sponge absorbs the lubricating oil, it is evenly applied to the surface of the L-shaped groove 6 track. An L-shaped strip 306 is fixedly connected to the rear side of the moving block 305. The rear side of the L-shaped strip 306 is fixedly connected to the top of the corresponding arc-shaped buffer block 205. When the drawer block 4 is pushed in, the pulley 804 will hit the arc-shaped buffer block 205, thereby causing the arc-shaped buffer block 205 to move. The moving block 305 is pulled to slide on the partition 304 by the L-shaped strip 306, and the movement of the L-shaped strip 306 will drive the moving block 305 to move together.

[0036] Specifically, when drawer block 4 is pushed in, pulley 804 will strike arc-shaped buffer block 205, causing arc-shaped buffer block 205 to move. The L-shaped bar 306 pulls moving block 305 to slide on partition 304. The movement of L-shaped bar 306 will cause moving block 305 to move together. Since there is a round hole above moving block 305, lubricating oil in reservoir 301 will flow into the round hole. When moving block 305 moves, it will drive the lubricating oil in the hole to move together. At this time, the hole above moving block 305 will be connected to connecting pipe 302, and the lubricating oil in the hole will flow to sponge applicator 303 through connecting pipe 302. After the sponge absorbs the lubricating oil, it will be evenly applied to the surface of L-shaped groove 6 track. Since the size of the hole above moving block 305 is fixed, the volume of lubricating oil flowing in each time is consistent, thereby achieving a quantitative flow of lubricating oil and avoiding lubricating oil waste or jamming caused by uneven application.

[0037] Reference Figure 1 , Figure 2 and Figure 5A control device 9 is fixedly connected to the middle of the inner wall of drawer block 4. As the core component of the drawer-type switchgear, the control device 9 is used to monitor and control the power system. The front end of the control device 9 extends through the front of drawer block 4 and is fixedly connected to a control knob 10. Rotating the control knob 10 allows direct input of parameters for parameter adjustment and switching operations to the control device 9. Its through-type design makes operation more convenient and intuitive. A voltage instrument 11 is fixedly connected to the right front of drawer block 4. The voltage instrument 11 can assist in determining whether there are abnormal conditions such as overvoltage or undervoltage in the circuit. Pull blocks 12 are fixedly connected to both the left and right sides of the front of drawer block 4. The pull blocks 12 can apply appropriate pulling force to easily pull out and push in drawer block 4. A limiting hollow block 13 is fixedly connected to the top of the drawer block 4. The limiting hollow block 13 can be used to store technical parameters related to the control device 9 inside the drawer block 4. A transparent plate 14 is fixedly connected to the front side of the inner wall of the limiting hollow block 13. The transparent plate 14 can protect the internal documents from dust and oil contamination. A fixed plate 15 is fixedly connected to the middle of the front side of the drawer block 4. Multiple scale lines 16 are opened on the front side of the fixed plate 15. The fixed plate 15 and the scale lines 16 make the operation process more standardized and visible, and avoid abnormal operation of the equipment due to operating angle errors. Multiple heat dissipation holes 17 are opened on the left and right sides of the outer wall of the drawer block 4. Multiple ventilation tilt holes 18 are opened on the rear side of the drawer block 4. The heat dissipation holes 17 and ventilation tilt holes 18 enhance the air circulation effect.

[0038] Specifically, the control device 9, as the core component of the drawer-type switchgear, is used to monitor and regulate the power system. By rotating the control knob 10, parameters of the control device 9 can be directly adjusted and switching operation commands can be input. Its through-type design makes operation more convenient and intuitive, avoiding misoperation caused by limited operating space. The voltage instrument 11 can help determine whether there are abnormal conditions such as overvoltage or undervoltage in the circuit, providing key basis for fault diagnosis and repair, and ensuring the safe and stable operation of the power system. The pull block 12 can apply appropriate pulling force to easily pull out and push in the drawer block 4, while the limit hollow block 13 can be used to store the drawer. Block 4 contains information on the technical parameters and operation guidelines of the control device 9. The transparent panel 14 protects the internal documents from dust and oil contamination, while allowing operators to clearly view the contents of the internal documents. This facilitates quick access to relevant information during operation or maintenance, improving work efficiency. The fixed plate 15 and scale lines 16 make the operation process more standardized and visual, preventing equipment malfunctions caused by operating angle errors and improving the accuracy of power control. The heat dissipation holes 17 and the ventilation tilt holes 18 utilize the principle of air convection to guide cold air from the bottom of the tilt holes and hot air from the top, enhancing air circulation.

[0039] Working principle: First, during the installation of one side mounting plate 1, the top rear side of the cross connecting rod 201 is hinged to the bottom rear side of the mounting plate 1. The front slider 203 is embedded in the slide groove 202. When there is a height difference between the two mounting plates 1, the slider 203 slides in the slide groove 202, pushing the cross connecting rod 201 to rotate around the hinge point, thereby forcing the two mounting plates 1 to automatically adjust to the same horizontal position, avoiding tilting of the guide rail due to installation errors. During the installation process, the L-shaped card plate 501 is attached to the cabinet mounting surface, and the position of the mounting plate 1 is initially fixed by the fixing screws 504 in the limiting block 503 to achieve quick positioning. Subsequently, the limiting plate 502 is inserted into the slot on the inner wall of the L-shaped card plate 501. The limiting plate 502 restricts the lateral displacement of the mounting plate 1, ensuring that the mounting plate 1 is perpendicular and stable to the cabinet, avoiding guide rail displacement due to loosening, which would affect the sliding of the drawer block 4. When drawer block 4 is pulled out, L-shaped fixing plate 7 drives perforated plate 801 to move along L-shaped groove 6. L-shaped limiting strip 802 is embedded in the top of L-shaped groove 6 to prevent perforated plate 801 from leaving the track. Pulley 804 rotates on rotating plate 803 and contacts the inner wall of L-shaped groove 6, converting sliding friction into rolling friction, reducing resistance and ensuring smooth pulling of drawer block 4. In addition, rotating plate 803 can adaptively adjust the angle of pulley 804 to fit the contour of inner wall of L-shaped groove 6. Even if there is slight deformation of the guide rail, pulley 804 can remain engaged to prevent drawer block 4 from leaving the track during the pulling process. When drawer block 4 is pushed back, it will hit the back of mounting plate 1, which will cause vibration. At this time, arc-shaped buffer block 205 is pressed by the buffer spring 204. The deformation of buffer spring 204 absorbs vibration energy to prevent vibration from affecting the smoothness of drawer block 4 sliding and reduce the impact on cabinet structure.

[0040] Furthermore, through the lubrication metering mechanism 3, during the process of pushing in the drawer block 4, the pulley 804 will collide with the arc-shaped buffer block 205, causing the arc-shaped buffer block 205 to shift. Subsequently, the L-shaped bar 306 pulls the moving block 305 to slide on the partition 304. The movement of the L-shaped bar 306 also drives the moving block 305 to move synchronously. Since there is a round hole above the moving block 305, the lubricating oil in the liquid storage tank 301 can flow into the round hole. When the moving block 305 moves, the lubricating oil is driven in the hole. At this time, the hole above the moving block 305 is connected to the connecting pipe 302. The lubricating oil flows to the sponge applicator 303 through the connecting pipe 302. After the sponge absorbs the lubricating oil, it can be evenly applied to the track surface of the L-shaped groove 6. Since the size of the hole above the moving block 305 is fixed, the amount of lubricating oil flowing in each time is consistent, thereby realizing the metered output of lubricating oil and avoiding the waste of lubricating oil and the jamming problem caused by uneven application.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawer-type switch cabinet guide rail anti-jamming double guide limit assembly, including a mounting plate (1) and a drawer block (4), characterized in that: Mounting components (5) are provided on the top of the two mounting plates (1) on opposite sides. L-shaped grooves (6) are provided on the adjacent sides of the two mounting plates (1). L-shaped fixing plates (7) are fixedly connected to the left and right sides of the outer wall of the drawer block (4). Sliding components (8) are provided on the outer wall of the L-shaped fixing plates (7). A connecting mechanism (2) is provided at the bottom of the mounting plate (1). The connecting mechanism (2) is used to ensure that the two mounting plates (1) are in the same horizontal position during installation. A lubrication metering mechanism (3) is provided at the top of the mounting plate (1). The lubrication metering mechanism (3) is used to ensure lubrication above the track. The connecting mechanism (2) includes a cross connecting rod (201). The top rear left and right ends of the cross connecting rod (201) are rotatably connected to the bottom rear ends of the corresponding mounting plate (1). A sliding groove (202) is provided on the bottom front side of the mounting plate (1). A slider (203) is rotatably connected to the top front left and right ends of the cross connecting rod (201). The outer wall of the slider (203) is slidably connected to the inner wall of the corresponding sliding groove (202). A buffer spring (204) is fixedly connected to the upper and lower ends of the inner rear side of the mounting plate (1). An arc-shaped buffer block (205) is fixedly connected to the front end of each of the two buffer springs (204).

2. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: The lubrication metering mechanism (3) includes two liquid storage tanks (301). The bottoms of the two liquid storage tanks (301) are respectively fixedly connected to the top of the mounting plate (1). The bottom of the liquid storage tank (301) is connected to a connecting pipe (302). The bottom of the outer wall of the connecting pipe (302) passes through the top of the mounting plate (1) and is fixedly connected to a sponge applicator (303). The bottom of the inner wall of the liquid storage tank (301) is fixedly connected to a partition (304). The inner wall of the partition (304) is slidably connected to a moving block (305). The rear side of the moving block (305) is fixedly connected to an L-shaped strip (306). The rear side of the L-shaped strip (306) is fixedly connected to the top of the corresponding arc-shaped buffer block (205).

3. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: The mounting assembly (5) includes two L-shaped clamping plates (501). The adjacent sides of the two L-shaped clamping plates (501) are respectively fixedly connected to the top of the opposite side of the outer wall of the corresponding mounting plate (1). The inner wall of the L-shaped clamping plate (501) is provided with a limiting plate (502). The outer wall of the limiting plate (502) is engaged with the inner wall of the L-shaped clamping plate (501). The opposite side of the outer wall of the two limiting plates (502) is fixedly connected with a limiting block (503). The inner wall of the limiting block (503) is threaded with a fixing screw (504).

4. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: The sliding assembly (8) includes two perforated plates (801), the inner walls of the two perforated plates (801) are respectively engaged with the inner walls of the corresponding L-shaped fixing plates (7), and L-shaped limiting strips (802) are fixedly connected to the top of the opposite side of the two perforated plates (801). Rotating plates (803) are rotatably connected to the rear ends of the opposite side of the two perforated plates (801). Pulleys (804) are rotatably connected to the front and rear sides of the outer wall of the rotating plate (803), and the outer wall of the pulley (804) is engaged with the inner wall of the L-shaped groove (6).

5. The anti-jamming dual guide limit assembly for drawer-type switchgear as described in claim 1, characterized in that: A control device (9) is fixedly connected to the middle of the inner wall of the drawer block (4). The front end of the control device (9) passes through the front of the drawer block (4) and is fixedly connected to the operating knob (10). A voltage instrument (11) is fixedly connected to the right side of the front of the drawer block (4).

6. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: Pull blocks (12) are fixedly connected to the left and right sides of the front part of the drawer block (4), and a limiting hollow block (13) is fixedly connected to the top of the front part of the drawer block (4). A transparent plate (14) is fixedly connected to the front side of the inner wall of the limiting hollow block (13).

7. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: A fixed plate (15) is fixedly connected to the middle of the front side of the drawer block (4), and multiple scale lines (16) are opened on the front side of the fixed plate (15).

8. The anti-jamming dual guide limit assembly for drawer-type switch cabinet guide rails according to claim 1, characterized in that: Multiple heat dissipation holes (17) are provided on the left and right sides of the outer wall of the drawer block (4), and multiple ventilation inclined holes (18) are provided on the rear side of the drawer block (4).

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