A contactor housing for easy installation
Patent Information
- Application Number
- CN202522532094.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-28
Smart Images

Figure CN224889527U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of contactor technology, and specifically to a contactor housing that is easy to install. Background Technology
[0002] A contactor is a widely used switching device that uses electromagnetic, pneumatic, or hydraulic principles to control the switching of the main circuit. Contactors have advantages such as strong current interruption capability, rapid action, safe operation, frequent operation, and remote control. However, they cannot interrupt short-circuit currents, so contactors are usually used in conjunction with fuses.
[0003] In current applications, contactors are typically installed in a shared space with other low-voltage electrical appliances, usually mounted on DIN rails. However, in practical use, especially in non-standard equipment, various types of electrical appliances are frequently used, each requiring different DIN rail dimensions. Existing contactors have poor compatibility, only fitting fixed-size DIN rails. When the contactor's mounting rail is incompatible with that of other electrical appliances, installation becomes inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide a contactor housing that is easy to install, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a contactor housing that is easy to install, comprising a housing, wherein the housing is provided with an installation assembly, the installation assembly comprising a fixing strip and a fixing plate fixedly disposed on the rear side of the housing, a sliding strip slidably disposed on the rear side of the housing, a stud fixedly disposed below the fixing strip, a threaded sleeve rotatably disposed above the sliding strip, a sliding bracket slidably disposed on the fixing plate, a locking block A and a locking block B respectively fixedly disposed below the sliding strip and above the sliding bracket, and a compression spring, wherein the fixing strip is located above the fixing plate, the sliding strip is located between the fixing strip and the fixing plate, the threaded sleeve is screwed into the stud and threadedly connected to the stud, the sliding bracket is connected to the housing through the compression spring, and the bottom end of the sliding bracket is located below the housing.
[0006] Preferably, a T-shaped block is fixedly provided on the front side of the sliding bar, and a T-shaped groove matching the T-shaped block is provided on the rear side wall of the housing. The T-shaped block is inserted into the T-shaped groove and slidably connected to the housing.
[0007] Preferably, a cylinder is fixedly disposed below the threaded sleeve, and a disc is fixedly disposed below the cylinder. The diameter of the disc is larger than the diameter of the cylinder. A stepped annular groove matching the cylinder and the disc is formed on the top wall of the sliding strip. The cylinder and the disc are inserted into the stepped annular groove and rotatably connected to the sliding strip.
[0008] Preferably, anti-detachment strips are fixedly provided on the left and right sides of the sliding frame, and an installation groove matching the sliding frame and anti-detachment strips is provided on the rear side wall of the fixing plate. The sliding frame and anti-detachment strips are inserted into the installation groove and slidably connected to the fixing plate.
[0009] Preferably, a base plate is fixedly installed on the side wall of the mounting groove. The base plate is located inside the sliding frame and below the locking block B. The upper and lower ends of the spring are fixedly connected to the sliding frame and the base plate, respectively.
[0010] Preferably, several fixing blocks are fixedly provided on both the upper and lower sides of the shell, and the fixing blocks are provided with waist holes that run through the front and back.
[0011] Preferably, the threaded sleeve is provided with anti-slip texture, and the rear sidewalls of both the locking block A and the locking block B are inclined.
[0012] The beneficial effects of this utility model are as follows: 1. When the contactor needs to be installed on the guide rail, place the housing in front of the guide rail, and position the guide rail between the sliding bar and the fixed plate. Connect the top of the guide rail with the bottom of the sliding bar, and position the locking block A behind the guide rail. Press the housing backward, causing the guide rail to squeeze the locking block B, which in turn causes the locking block B and the sliding frame to slide downward. The sliding frame will compress the compression spring. After the guide rail completely pushes the locking block B away, the guide rail will contact the housing, and the bottom of the guide rail will contact the top of the fixed plate. Then, the compression spring will return, resetting the locking block B. At this point, both locking blocks A and B are behind the guide rail, and the housing is secured to the guide rail by locking blocks A and B without falling off, thus completing the installation of the housing and enabling quick manual installation.
[0013] 2. When the contactor is not compatible with the guide rails of other electrical appliances, place the housing in front of the guide rail, align the top of the fixing plate with the bottom of the guide rail, and rotate the screw sleeve to move it on the stud, causing the sliding strip to slide on the housing. Stop rotating the screw sleeve when the bottom of the sliding strip is aligned with the top of the guide rail. This will make the housing installation size match the guide rail, and the housing can be installed on the same guide rail as other electrical appliances without the need to select a separate guide rail, which facilitates installation.
[0014] 3. When the contactor needs to be disassembled, pull the sliding bracket down to make it slide down. The sliding bracket will compress the compression spring, so that the locking block B is located below the guide rail. Then pull the housing up to remove the housing, thus completing the disassembly of the housing. This achieves the function of quick disassembly by hand.
[0015] In summary, this utility model can be disassembled and assembled by hand, and it can be adapted to guide rails of different sizes, thus providing a convenient installation effect. It solves the problem that in actual use, especially in some non-standard equipment, various types of electrical appliances are often used, and the guide rail sizes required for the installation of these appliances are also different. Existing contactors have poor installation compatibility and can only be adapted to guide rails of fixed sizes. When the guide rails installed on the contactor and other electrical appliances are not compatible, it leads to the problem of inconvenient installation. Attached Figure Description
[0016] Appendix Figure 1 This is a front view of the present invention; Appendix Figure 2 This is a rear view of the present invention; Appendix Figure 3 This is a schematic diagram of the rear structure of this utility model; Appendix Figure 4 This is the right view of the present invention; Appendix Figure 5 For the appendix Figure 4 Sectional view at point AA.
[0017] In the diagram: 1. Housing; 2. Fixing strip; 3. Fixing plate; 4. Sliding strip; 5. Stud; 6. Screw sleeve; 7. Sliding frame; 8. Locking block A; 9. Locking block B; 10. Compression spring; 11. T-block; 12. T-slot; 13. Cylinder; 14. Disc; 15. Stepped ring groove; 16. Anti-detachment strip; 17. Mounting groove; 18. Base plate; 19. Fixing block; 20. Waist hole. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] like Figure 1-5As shown, this utility model discloses a contactor housing 1 that is easy to install, including a housing 1. The housing 1 is provided with an installation assembly. The installation assembly includes a fixing strip 2 and a fixing plate 3 fixedly disposed on the rear side of the housing 1, a sliding strip 4 slidably disposed on the rear side of the housing 1, a stud 5 fixedly disposed below the fixing strip 2, a screw sleeve 6 rotatably disposed above the sliding strip 4, a sliding bracket 7 slidably disposed on the fixing plate 3, a locking block A8 and a locking block B9 respectively fixedly disposed below the sliding strip 4 and above the sliding bracket 7, and a compression spring 10. The fixing strip 2 is located above the fixing plate 3, the sliding strip 4 is located between the fixing strip 2 and the fixing plate 3, the screw sleeve 6 is screwed into the stud 5 and threadedly connected to the stud 5, and the sliding bracket 7 is connected to the housing 1 through the compression spring 10. The bottom end of the sliding bracket 7 is located below the housing 1. When the contactor needs to be installed on the guide rail, place the housing 1 in front of the guide rail, positioning the guide rail between the sliding bar 4 and the fixed plate 3. Connect the top of the guide rail to the bottom of the sliding bar 4, and position the locking block A8 behind the guide rail. Press the housing 1 backward, causing the guide rail to squeeze the locking block B9, which in turn causes the locking block B9 and the sliding frame 7 to slide downward. The sliding frame 7 will compress the compression spring 10. After the guide rail completely pushes open the locking block B9, the guide rail will connect with the housing 1, and the bottom of the guide rail will connect with the top of the fixed plate 3. Then, the compression spring 10 will rebound, causing the locking block B9 to reset. At this time, both locking blocks A8 and B9 are located behind the guide rail. The housing 1 is secured to the guide rail by locking blocks A8 and B9 and will not fall off, thus completing the installation of the housing 1 and achieving the function of quick installation by hand. When the contactor is not compatible with the guide rails installed with other electrical appliances, place the housing 1 in front of the guide rail, align the top of the fixing plate 3 with the bottom of the guide rail, and rotate the screw sleeve 6 to move it on the stud 5, causing the sliding strip 4 to slide on the housing 1. When the bottom end of the sliding bar 4 is aligned with the top end of the guide rail, stop rotating the screw sleeve 6. This will allow the installation dimensions of the housing 1 to match the guide rail, enabling the housing 1 to be installed on the same guide rail as other electrical appliances without the need for separate guide rail selection, thus facilitating installation. When the contactor needs to be disassembled, pull down the sliding bracket 7 to make it slide downwards. The sliding bracket 7 will compress the compression spring 10, causing the locking block B9 to be located below the guide rail. Then, pull the housing 1 upwards to remove it, completing the disassembly of the housing 1. This allows for quick disassembly by hand. In summary, this utility model allows for disassembly and assembly by hand and can be adapted to guide rails of different sizes, providing the beneficial effect of convenient installation. It solves the problem that in practical use, especially in some non-standard equipment, various types of electrical appliances are often used, and the required guide rail sizes for these appliances are also different. Existing contactors have poor installation compatibility and can only be adapted to guide rails of fixed sizes. When the guide rails installed on the contactor and other electrical appliances are not compatible, it leads to inconvenience in installation.
[0020] Preferably, a T-shaped block 11 is fixedly provided on the front side of the sliding strip 4, and a T-shaped groove 12 matching the T-shaped block 11 is provided on the rear side wall of the housing 1. The T-shaped block 11 is inserted into the T-shaped groove 12 and slidably connected to the housing 1. Since the T-shaped groove 12 matching the T-shaped block 11 is provided on the rear side wall of the housing 1, inserting the T-shaped block 11 into the T-shaped groove 12 and slidably connecting it to the housing 1 facilitates the sliding of the sliding strip 4 and prevents the sliding strip 4 from falling off the housing 1.
[0021] Preferably, a cylinder 13 is fixedly disposed below the threaded sleeve 6, and a disc 14 is fixedly disposed below the cylinder 13. The diameter of the disc 14 is larger than the diameter of the cylinder 13. A stepped annular groove 15 matching the cylinder 13 and the disc 14 is formed on the top wall of the sliding strip 4. The cylinder 13 and the disc 14 are inserted into the stepped annular groove 15 and rotatably connected to the sliding strip 4. Because the stepped annular groove 15 matching the cylinder 13 and the disc 14 is formed on the top wall of the sliding strip 4, when the cylinder 13 and the disc 14 are inserted into the stepped annular groove 15 and rotatably connected to the sliding strip 4, the threaded sleeve 6 moves on the threaded stud 5, which drives the sliding strip 4 to move through the cylinder 13 and the disc 14, thus facilitating the movement of the sliding strip 4.
[0022] Preferably, anti-detachment strips 16 are fixedly provided on both the left and right sides of the sliding frame 7, and a mounting groove 17 matching the sliding frame 7 and the anti-detachment strips 16 is provided on the rear side wall of the fixing plate 3. The sliding frame 7 and the anti-detachment strips 16 are inserted into the mounting groove 17 and slidably connected to the fixing plate 3. Since the mounting groove 17 matching the sliding frame 7 and the anti-detachment strips 16 is provided on the rear side wall of the fixing plate 3, inserting the sliding frame 7 and the anti-detachment strips 16 into the mounting groove 17 and slidably connecting them to the fixing plate 3 facilitates the sliding of the sliding frame 7 and prevents the sliding frame 7 from falling off the fixing plate 3.
[0023] Preferably, a base plate 18 is fixedly installed on the side wall of the mounting groove 17. The base plate 18 is located inside the sliding frame 7 and below the locking block B9. The upper and lower ends of the spring are fixedly connected to the sliding frame 7 and the base plate 18, respectively. Since the upper and lower ends of the spring are fixedly connected to the sliding frame 7 and the base plate 18, respectively, it facilitates the resetting of the sliding frame 7 and the locking block B9.
[0024] Preferably, several fixing blocks 19 are fixedly provided on both the upper and lower sides of the housing 1, and the fixing blocks 19 have through holes 20. Since the fixing blocks 19 have through holes 20, screws can be passed through the holes 20 and then screwed into a plate with screw holes or other flat surfaces, so that the housing 1 can be installed in various environments, thus providing multiple installation methods.
[0025] Preferably, the threaded sleeve 6 is provided with anti-slip texture, and the rear sidewalls of the locking blocks A8 and B9 are both inclined. The anti-slip texture on the threaded sleeve 6 prevents slippage; the inclined rear sidewall of the locking block B9 facilitates the guide rail to push open the locking block B9.
[0026] 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 contactor housing that is easy to install, comprising a housing (1), characterized in that: The housing (1) is provided with an installation assembly, characterized in that: the installation assembly includes a fixing strip (2) and a fixing plate (3) fixedly disposed on the rear side of the housing (1), a sliding strip (4) slidably disposed on the rear side of the housing (1), a stud (5) fixedly disposed below the fixing strip (2), a screw sleeve (6) rotatably disposed above the sliding strip (4), a sliding frame (7) slidably disposed on the fixing plate (3), a locking block A (8) and a locking block B (9) respectively fixedly disposed below the sliding strip (4) and above the sliding frame (7), and a compression spring (10). The fixing strip (2) is located above the fixing plate (3), the sliding strip (4) is located between the fixing strip (2) and the fixing plate (3), the screw sleeve (6) is screwed into the stud (5) and threadedly connected to the stud (5), the sliding frame (7) is connected to the housing (1) through the compression spring (10), and the bottom end of the sliding frame (7) is located below the housing (1).
2. The contactor housing for easy installation according to claim 1, characterized in that: A T-shaped block (11) is fixedly provided on the front side of the sliding bar (4), and a T-shaped groove (12) matching the T-shaped block (11) is provided on the rear side wall of the housing (1). The T-shaped block (11) is inserted into the T-shaped groove (12) and slidably connected to the housing (1).
3. The contactor housing for easy installation according to claim 1, characterized in that: A cylinder (13) is fixedly installed below the threaded sleeve (6), and a disc (14) is fixedly installed below the cylinder (13). The diameter of the disc (14) is larger than the diameter of the cylinder (13). A stepped annular groove (15) matching the cylinder (13) and the disc (14) is opened on the top wall of the sliding bar (4). The cylinder (13) and the disc (14) are inserted into the stepped annular groove (15) and rotatedly connected to the sliding bar (4).
4. The contactor housing for easy installation according to claim 1, characterized in that: The sliding frame (7) is fixedly provided with anti-detachment strips (16) on the left and right sides. The mounting groove (17) matching the sliding frame (7) and anti-detachment strips (16) is opened on the rear side wall of the fixing plate (3). The sliding frame (7) and anti-detachment strips (16) are inserted into the mounting groove (17) and slidably connected to the fixing plate (3).
5. A contactor housing for easy installation according to claim 4, characterized in that: A base plate (18) is fixedly installed on the side wall of the mounting groove (17). The base plate (18) is located inside the sliding frame (7) and below the locking block B (9). The upper and lower ends of the spring are fixedly connected to the sliding frame (7) and the base plate (18) respectively.
6. A contactor housing for easy installation according to claim 1, characterized in that: The shell (1) has several fixing blocks (19) fixedly installed on both the upper and lower sides, and the fixing blocks (19) have waist holes (20) through the front and back.
7. A contactor housing for easy installation according to claim 1, characterized in that: The threaded sleeve (6) is provided with anti-slip texture, and the rear sidewalls of the locking block A (8) and the locking block B (9) are both inclined.