Component mounting substrate for PLC control cabinet
By using a worm gear and bevel gear mechanism, the problem of limited adjustment position of the moving beam in the PLC control cabinet is solved, realizing flexible adjustment and stable support of component installation position, and improving the convenience of adjustment and the stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-06
AI Technical Summary
The existing PLC control cabinet has limited adjustment positions for the moving beam and a fixed number of slots, which restricts the range of height variation of component installation positions and makes the adjustment process laborious and inconvenient.
By employing a worm gear and bevel gear mechanism, the meshing of the worm and worm wheel sleeve and the transmission of the bevel gear enable flexible adjustment of the layered plates, share the gravity load, and prevent breakage at the connection points.
It enables flexible adjustment and stable support of the layered board, avoiding tilting caused by the weight of the components, and improving the convenience of adjustment and the stability of the equipment.
Smart Images

Figure CN223978915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of controller mounting bracket technology, specifically a component mounting base plate for PLC control cabinets. Background Technology
[0002] PLC control cabinets refer to programmable control cabinets. A control cabinet is a complete set of control cabinets that can control motors and switches. PLC control cabinets have protection functions such as overload, short circuit, and phase loss protection. Currently used PLC control cabinets use metal beams to assemble a frame to achieve upper and lower partitions. At the same time, metal mounting brackets can be used to install PLC controllers. However, the metal mounting brackets used at this stage are fixed to the metal frame and cannot be adjusted according to needs. It is not convenient to adapt to the installation requirements of different PLC controllers, and the flexibility is not high.
[0003] Publication No. CN220368932U discloses a controller mounting bracket for a PLC control cabinet. The bracket is characterized by comprising two longitudinal beams and two transverse beams, symmetrically arranged and forming a rectangular frame. Movable beams are mounted vertically on the inner sides of the two longitudinal beams. Metal mounting brackets are mounted on the outer walls of the movable beams. Positioning mechanisms for positioning the movable beams and longitudinal beams are mounted on the left and right sides of the inner cavity of the movable beams. This device can quickly achieve the docking and installation of the longitudinal and transverse beams, completing the assembly and positioning of the frame. It can also adjust the position of the movable beams according to requirements and adapt to different models and sizes of PLC controllers to meet spatial arrangement needs. The device has high versatility and flexibility, and is easy to operate. However, this patent still has the following problems in actual use:
[0004] In the above-mentioned device, the moving beam is moved and installed by a locking block. However, the installation of the locking block requires a matching locking slot. However, the position of the locking slot is fixed and the number is limited, which limits the adjustable position of the moving beam. Consequently, the height variation range of the component installation position in the control cabinet is limited. Furthermore, when adjusting, it is necessary to lift the entire moving beam while operating the positioning mechanism, which is quite inconvenient.
[0005] A component mounting base plate for PLC control cabinets is proposed to address the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide a component mounting base plate for PLC control cabinets, so as to solve the problem that in the above-mentioned device mentioned in the background art, the moving beam is moved and installed by the card block. However, the installation of the card block requires a matching card slot, but the position of the card slot is fixed and the number is limited, which results in a limited adjustable position of the moving beam. Consequently, the height variation range of the component installation position in the control cabinet is limited, and the adjustment requires the effort of lifting the entire moving beam while operating the positioning mechanism, which is quite inconvenient.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a component mounting base for a PLC control cabinet, comprising a cabinet body, a cabinet door rotatably mounted on the front of the cabinet body, and several layered panels provided inside the cabinet body;
[0008] A support assembly is provided on one side of the layered plate, and an adjustment assembly is provided on the other side of the layered plate;
[0009] The support assembly includes stepped blocks symmetrically fixed to one side of the top surface of the layered plate. A mounting shell is fixedly connected to one side of the bottom surface of the layered plate. A horizontal shaft is rotatably connected to the middle of the mounting shell. Both ends of the horizontal shaft extend out of the mounting shell and are fixedly connected to a first gear. A movable sleeve is slidably connected to the inner side of the mounting shell. A worm gear sleeve is fixedly connected to the outside of the horizontal shaft. A worm is rotatably connected to the inner side of the middle of the movable sleeve. A stud is rotatably connected to the outer side of the middle of the movable sleeve. The bottom end of the worm shaft passes through the movable sleeve and is fixedly connected to a knob.
[0010] The cabinet has symmetrical grooves and stepped grooves on one side of its interior, and a toothed rack is fixedly connected inside the groove.
[0011] The adjustment assembly includes a side frame fixed inside the layered plate on the other side. The side frame has several adjustment cavities inside. A screw is rotatably installed inside the adjustment cavity. A threaded sleeve is slidably connected to the external thread of the screw. A fixing block is fixedly connected to one side of the threaded sleeve. The fixing block is fixedly connected to the layered plate.
[0012] Preferably, the worm gear is meshed with the worm wheel sleeve, the stud extends out of the mounting housing and is threadedly connected to the mounting housing, and the knob is slidably connected to the bottom of the mounting housing.
[0013] Preferably, the top and bottom of the movable sleeve are both fitted against the inner wall of the mounting shell, and the first gear is meshed with the rack.
[0014] Preferably, one side of the side frame has several vertical grooves, and the vertical grooves are slidably connected to the fixing block.
[0015] Preferably, a connecting cavity is provided below the adjusting cavity. The connecting cavity is opened inside the side frame. A first bevel gear is installed on the upper part of the connecting cavity. A second bevel gear is installed on one side of the inside of the first bevel gear. The first bevel gear and the second bevel gear are meshed and connected.
[0016] Preferably, the bottom end of the screw extends into the connecting cavity and is fixedly connected to the first bevel gear.
[0017] Preferably, a plurality of rotating handles are rotatably connected to the side of the cabinet near the side frame, and the rotating handles extend into the connecting cavity and are fixedly connected to the second bevel gear.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This component mounting base plate for a PLC control cabinet compensates for the situation where the layered plate tilts to one side due to the weight of the components above, provides stable support to one side of the layered plate, distributes the weight of the layered plate, and prevents the connection between the layered plate and the fixing block from breaking due to long-term heavy load. The specific details are as follows:
[0019] 1. After the layered plate is adjusted, rotate the stud and the knob simultaneously to move the movable sleeve inside the mounting housing. This allows the freely rotating worm to re-engage with the worm gear sleeve. Rotating the knob causes the worm to rotate, which in turn causes the horizontal shaft to drive the first gear to rotate. This gear, in conjunction with the rack inside the groove, causes the end of the layered plate away from the side frame to move slightly upward and lock. This compensates for the layered plate tilting to one side due to the weight of the components above. When the gear, which cannot rotate freely, remains engaged with the rack, it provides stable support to one side of the layered plate, sharing the weight of the layered plate and preventing the connection between the layered plate and the fixing block from breaking due to long-term heavy load.
[0020] 2. By rotating the handle, the second bevel gear drives the first bevel gear to rotate, thereby rotating the screw. The rotating screw will drive the screw sleeve to rise and fall vertically, thus allowing the layering plate to rise and fall vertically, achieving flexible adjustment of the layering plate. Furthermore, when adjusting the layering plate, it remains horizontal and does not require manual support. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the front cross-section structure of this utility model;
[0022] Figure 2 This is a schematic diagram of a partial installation structure of the cabinet and the shelving.
[0023] Figure 3 This is a cross-sectional view of the mounting shell.
[0024] Figure 4 This is a schematic diagram of the installation structure of the worm gear sleeve and the worm.
[0025] Figure 5This is a schematic diagram of the installation structure of the groove and the stepped groove.
[0026] In the diagram: 1. Cabinet body; 101. Cabinet door; 102. Shelf panel; 2. Support assembly; 201. Step block; 202. Mounting shell; 203. Horizontal shaft; 204. First gear; 205. Worm gear sleeve; 206. Moving sleeve; 207. Worm; 208. Stud; 209. Knob; 210. Groove; 211. Rack; 212. Step groove; 3. Adjustment assembly; 301. Side frame; 302. Adjustment cavity; 303. Screw; 304. Screw sleeve; 305. Connecting cavity; 306. First bevel gear; 307. Rotary handle; 308. Second bevel gear; 309. Vertical groove; 310. Fixing block. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1 - Figure 5 The present invention provides a technical solution: a component mounting base plate for a PLC control cabinet, including a cabinet body 1, a cabinet door 101 rotatably mounted on the front of the cabinet body 1, and a plurality of layered plates 102 provided inside the cabinet body 1.
[0029] A support component 2 is provided on one side of the layered plate 102, and an adjustment component 3 is provided on the other side of the layered plate 102;
[0030] The support component 2 includes a stepped block 201 symmetrically fixed to one side of the top surface of the layered plate 102. A mounting shell 202 is fixedly connected to one side of the bottom surface of the layered plate 102. A horizontal shaft 203 is rotatably connected to the middle of the mounting shell 202. Both ends of the horizontal shaft 203 extend out of the mounting shell 202 and are fixedly connected to a first gear 204. A movable sleeve 206 is slidably connected to one side of the inner surface of the mounting shell 202. A worm gear sleeve 205 is fixedly connected to the outside of the horizontal shaft 203. A worm 207 is rotatably connected to the inner side of the middle of the movable sleeve 206. A stud 208 is rotatably connected to the outer side of the middle of the movable sleeve 206. The bottom end of the shaft of the worm 207 passes through the movable sleeve 206 and is fixedly connected to a knob 209. The stepped block 201 is slidably connected to the stepped groove 212 so that the layered plate 102 slides more stably. A horizontal groove is provided at the bottom of the mounting shell 202, and the knob 209 passes through the horizontal groove and slides.
[0031] Among them, a groove 210 and a stepped groove 212 are symmetrically opened on one side of the interior of the cabinet 1, and a rack 211 is fixedly connected inside the groove 210;
[0032] The adjustment component 3 includes a side frame 301 fixed inside the other side of the layered plate 102. The side frame 301 has several adjustment cavities 302 inside. A screw 303 is rotatably installed inside the adjustment cavity 302. A screw sleeve 304 is slidably connected to the external thread of the screw 303. A fixing block 310 is fixedly connected to one side of the screw sleeve 304. The fixing block 310 is fixedly connected to the layered plate 102.
[0033] The worm 207 is engaged with the worm gear sleeve 205, the stud 208 extends out of the mounting housing 202 and is threadedly connected to the mounting housing 202, and the knob 209 is slidably connected to the bottom of the mounting housing 202; the unidirectional transmission between the worm 207 and the worm gear sleeve 205 can prevent the worm gear sleeve 205 from driving the worm 207 to rotate, thus achieving indirect locking.
[0034] The top and bottom of the movable sleeve 206 are fitted against the inner wall of the mounting shell 202, and the first gear 204 is meshed with the rack 211.
[0035] A number of vertical grooves 309 are provided on one side of the side frame 301, and the vertical grooves 309 are slidably connected to the fixing block 310.
[0036] Below the adjustment cavity 302 is a connecting cavity 305, which is located inside the side frame 301. A first bevel gear 306 is installed on the upper part of the connecting cavity 305, and a second bevel gear 308 is installed on one side of the first bevel gear 306. The first bevel gear 306 and the second bevel gear 308 are meshed and connected. The number of adjustment cavities 302 is the same as that of the connecting cavity 305, the layered plate 102, and the vertical groove 309.
[0037] The bottom end of the screw 303 extends into the connecting cavity 305 and is fixedly connected to the first bevel gear 306.
[0038] Several rotating handles 307 are rotatably connected to the side of the cabinet 1 near the side frame 301. The rotating handles 307 extend into the connecting cavity 305 and are fixedly connected to the second bevel gear 308. The handles 307 are rotatably connected to the side frame 301. The handle head of the rotating handle 307 can be converted into a nut and driven to rotate by an electric gun, further reducing manpower.
[0039] Working principle: Before using the component installation board of this type of PLC control cabinet, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5As shown, firstly, rotating the stud 208 causes the movable sleeve 206 to move inside the mounting housing 202, and disengages the worm gear 207 from the worm wheel sleeve 205. Then, rotating a handle 307 causes the second bevel gear 308 to drive the first bevel gear 306 to rotate, thereby rotating the screw 303. The rotating screw 303 will drive the screw sleeve 304 to rise and fall vertically, thus allowing the layered plate 102 to rise and fall vertically at this time, realizing the flexible adjustment of the layered plate 102. When adjusting the layered plate 102, the layered plate 102 remains horizontal and does not require manual support.
[0040] After the layer plate 102 is adjusted, by rotating the stud 208 and simultaneously rotating the knob 209, the movable sleeve 206 moves inside the mounting housing 202, bringing the worm 207 closer to the worm gear sleeve 205. This allows the rotating worm 207 to re-engage with the worm gear sleeve 205. Rotating the knob 209 then rotates the worm 207, causing the horizontal shaft 203 to drive the first gear 204 to rotate. This, in conjunction with the rack 211 inside the groove 210, causes the end of the layer plate 102 away from the side frame 301 to move slightly upward and lock. This compensates for the situation where the layer plate 102 is tilted to one side due to the weight of the components above. When the first gear 204, which cannot rotate freely, remains engaged with the rack 211, it provides stable support to one side of the layer plate 102, sharing the weight of the layer plate 102 and preventing the connection between the layer plate 102 and the fixing block 310 from breaking due to long-term heavy load.
[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An element mounting base for PLC control cabinet, comprising a cabinet body (1), a cabinet door (101) is rotatably mounted on the front of the cabinet body (1), and a plurality of layered plates (102) are arranged in the cabinet body (1); characterized in that Further comprising: A support assembly (2) is arranged on one side of the layered plate (102), and an adjusting assembly (3) is arranged on the other side of the layered plate (102); Wherein, the support assembly (2) comprises a stepped block (201) symmetrically fixed on one side of the top surface of the layered plate (102), an installation shell (202) fixedly connected on one side of the bottom surface of the layered plate (102), a horizontal shaft (203) rotatably connected in the middle of the installation shell (202), first gears (204) fixedly connected on both ends of the horizontal shaft (203) and extending out of the installation shell (202), a moving sleeve (206) slidably connected on one side of the inside of the installation shell (202), a worm gear sleeve (205) fixedly connected on the outside of the horizontal shaft (203), a worm (207) rotatably connected on the inside of the middle of the moving sleeve (206), a stud (208) rotatably connected on the outside of the middle of the moving sleeve (206), and a knob (209) fixedly connected on the bottom end of the shaft of the worm (207); Wherein, a groove (210) and a stepped groove (212) are symmetrically arranged on one side of the inside of the cabinet body (1), and a rack (211) is fixedly connected in the groove (210); Wherein, the adjusting assembly (3) comprises a side frame (301) fixed on the other side of the inside of the layered plate (102), a plurality of adjusting cavities (302) arranged in the inside of the side frame (301), a screw rod (303) rotatably mounted in the inside of the adjusting cavity (302), a screw sleeve (304) threadedly and slidably connected on the outside of the screw rod (303), a fixed block (310) fixedly connected on one side of the screw sleeve (304), and the fixed block (310) is fixedly connected with the layered plate (102).
2. The component mounting board for a PLC control cabinet according to claim 1, characterized in that: The worm (207) is meshingly connected with the worm gear sleeve (205), the stud (208) extends out of the installation shell (202) and is threadedly connected with the installation shell (202), and the knob (209) is slidably connected with the bottom of the installation shell (202).
3. The component mounting board for a PLC control cabinet according to claim 1, characterized in that: The top and bottom of the moving sleeve (206) are attached to the inner wall of the installation shell (202), and the first gears (204) are meshingly connected with the rack (211).
4. The component mounting board for a PLC control cabinet according to claim 1, characterized in that: A plurality of vertical grooves (309) are arranged on one side of the side frame (301), and the vertical grooves (309) are slidably connected with the fixed block (310).
5. The component mounting board for a PLC control cabinet according to claim 1, characterized in that: A connecting cavity (305) is arranged below the adjusting cavity (302), the connecting cavity (305) is arranged in the inside of the side frame (301), a first bevel gear (306) is mounted in the inside of the connecting cavity (305), a second bevel gear (308) is mounted on one side of the inside of the first bevel gear (306), and the first bevel gear (306) is meshingly connected with the second bevel gear (308).
6. The component mounting board for a PLC control cabinet according to claim 5, characterized in that: The bottom end of the screw rod (303) extends into the connecting cavity (305) and is fixedly connected with the first bevel gear (306).
7. The component mounting board for a PLC control cabinet according to claim 1, characterized in that: The cabinet body (1) is rotatably connected with a plurality of handle rods (307) near one side of the side frame (301), the handle rods (307) extend into the connecting cavity (305) and are fixedly connected with the second bevel gear (308).
Citation Information
Patent Citations
Controller mounting rack for plc control cabinet
CN220368932U