Pre-fixing structure and electromagnetic switch using same

Abstract

The utility model relates to a pre-fixing structure and an electromagnetic switch using the same, and belongs to the technical field of electromagnetic switchs.The pre-fixing structure comprises a mounting table, limiting blocks and stopping blocks are symmetrically arranged on the mounting table in pairs, a square is defined by the limiting blocks and the stopping blocks, and the cross section of each stopping block is in an L shape; and a stop groove is formed between the L-shaped stop block and the mounting table. By arranging the stop block and the locking mechanism, the locking block in the locking mechanism abuts against the stop block, installation of the electromagnetic switch can be achieved, installation is easy and convenient, meanwhile, the side portion of the electromagnetic switch is limited through the limiting block, and it can be ensured that the electromagnetic switch is firmly fixed to the installation table.

Description

Technical Field

[0001] The present application relates to the technical field of electromagnetic switches, and more particularly to a pre-fixing structure and an electromagnetic switch using this structure. Background Art

[0002] An electromagnetic switch is a switch controlled by an electromagnet, that is, a combination of an electromagnet and a switch. When the electromagnet coil is energized, an electromagnetic attraction force is generated, and the movable iron core pushes or pulls the switch contact to close, thereby connecting the controlled circuit.

[0003] In the prior art, the electromagnetic switch is fixed by a screw. The screw is passed through the bottom of the electromagnetic switch and fixed on the component where the electromagnetic switch needs to be used. However, since the installation location of the electromagnetic switch is generally narrow, it is very difficult to install the electromagnetic switch. It is difficult to align the screw holes of the electromagnetic switch with the screw holes of the installation position, which is not convenient for installation.

[0004] Our company previously applied for a Chinese patent with the publication number CN217468298U, which discloses a pre-fixing device and an electromagnetic switch using this device. It includes an installation table, and a limiting plate is provided on the top of the installation table; for the limiting plate, a support frame is provided on the top of the limiting plate, and a support groove and a clamping groove are opened on the top of the support frame. A clamping plate is provided on the top of the installation table, and an electromagnetic switch is provided on the top of the installation table. A base is installed at the bottom of the electromagnetic switch; and a first connection end is provided on the outer wall of the electromagnetic switch. The beneficial effects are as follows: By adding a limiting plate, the electromagnetic switch is placed down along the limiting plate. Both ends of the base are clamped between the clamping plates by the clamping blocks to fix the electromagnetic switch. The first connection end is placed in the support groove, and then it is convenient to fix the electromagnetic switch with a screw. After the second connection end is fixed on the top of the first connection end, the wire can be clamped in the clamping groove to prevent the second connection end from loosening, and the support frame plays a supporting role for the first connection end.

[0005] In the actual use process, its structure has slight defects. When the base of the electromagnetic switch is clamped into the clamping block, since neither the base nor the clamping block has elasticity, a relatively large force is required to squeeze the base into the clamping block. At the same time, after the base is clamped into the clamping block, it is impossible to disassemble the base from the clamping block, resulting in the inability to replace the electromagnetic switch later, which is inconvenient to use. Summary of the Utility Model

[0006] The purpose of the present application is to provide a pre-fixing structure and an electromagnetic switch using this structure to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present application provides a pre-fixing structure and an electromagnetic switch using this structure, adopting the following technical solutions:

[0008] A pre - fixing structure includes a mounting table. On the mounting table, limiting blocks and stopping blocks are symmetrically arranged in pairs. The limiting blocks and the stopping blocks enclose a square. The cross - section of the stopping block is L - shaped, and a stopping groove is formed between the L - shaped stopping block and the mounting table.

[0009] An electromagnetic switch is arranged on the top of the mounting table. A locking mechanism is detachably installed on the side of the electromagnetic switch corresponding to the stopping block. The locking mechanism includes a connecting block, a stud, a wedge block, a locking block and a spring. The connecting block is fixed on the electromagnetic switch by screws. The stud is threadedly connected to the connecting block. The wedge block is rotatably connected to the bottom end of the stud. A guiding groove is formed in the connecting block at a position corresponding to the wedge block. The locking block is radially slidably connected to the bottom of the connecting block. The spring is fixed between the locking block and the connecting block. The side of the locking block close to the stopping block has a pre - positioning block. When the spring is at rest, the pre - positioning block can be stuck in the stopping groove. A wedge - shaped groove matching the wedge block is formed in the locking block at a position corresponding to the wedge block.

[0010] Preferably, the distance between the two limiting blocks on both sides is the same as the length of the electromagnetic switch, and the top side of the limiting block has a chamfer.

[0011] By adopting the above - mentioned technical solution, the gap between the electromagnetic switch and the limiting block is small, which can improve the installation firmness of the electromagnetic switch.

[0012] Preferably, both the upper and lower sides of the side of the pre - positioning block close to the stopping groove have chamfers.

[0013] By adopting the above - mentioned technical solution, the setting of this chamfer can facilitate the pre - positioning block to be squeezed into the stopping groove. When it is necessary to remove the electromagnetic switch, only slightly lift the electromagnetic switch upward.

[0014] Preferably, in order to ensure the firm installation of the electromagnetic switch, anti - slip patterns are formed on the side walls of the locking block corresponding to the stopping block.

[0015] An electromagnetic switch includes the above - mentioned pre - fixing structure.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. By providing a stopping block and a locking mechanism, and using the locking block in the locking mechanism to abut against the stopping block, the installation of the electromagnetic switch can be realized. The installation is relatively simple. At the same time, by using the limiting block to limit the side of the electromagnetic switch, it can ensure that the electromagnetic switch is firmly fixed on the mounting table.

[0018] 2. This structure can not only realize the rapid installation of the electromagnetic switch, but also facilitate the rapid disassembly of the electromagnetic switch for replacement and maintenance. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram for embodying the structure of the mounting table in an embodiment of the present application.

[0021] Figure 3 It is a schematic diagram for embodying the structure of the electromagnetic switch in an embodiment of the present application.

[0022] Figure 4 It is a schematic diagram for embodying the structure of the locking mechanism in an embodiment of the present application.

[0023] Explanation of reference numerals: 1, mounting table; 11, limit block; 12, stop block; 121, stop groove; 2, electromagnetic switch; 3, locking mechanism; 31, connecting block; 32, stud; 33, wedge block; 34, locking block; 341, pre-positioning block; 342, wedge-shaped groove; 35, spring. Detailed implementation manners

[0024] The following further describes the present application in detail Figures 1-4 in conjunction with the attached drawings.

[0025] An embodiment of the present application discloses a pre-fixing structure. Referring to Figures 1-4 , it includes a mounting table 1. On the mounting table 1, limit blocks 11 and stop blocks 12 are symmetrically arranged in pairs. The limit blocks 11 and the stop blocks 12 enclose a square. The cross-section of the stop block 12 is L-shaped, and a stop groove 121 is formed between the L-shaped stop block 12 and the mounting table 1;

[0026] An electromagnetic switch 2 is arranged on the top of the mounting table 1. A locking mechanism 3 is detachably installed on the side of the electromagnetic switch 2 corresponding to the stop block 12. The locking mechanism 3 includes a connecting block 31, a stud 32, a wedge block 33, a locking block 34 and a spring 35. The connecting block 31 is fixed on the electromagnetic switch 2 by screws. The stud 32 is threadedly connected to the connecting block 31. A cross groove is opened at the top end of the stud 32. The wedge block 33 is rotatably connected to the bottom end of the stud 32. A guiding groove is opened at the position corresponding to the wedge block 33 in the connecting block 31. The locking block 34 is radially slidably connected to the bottom of the connecting block 31. The spring 35 is fixed between the locking block 34 and the connecting block 31. The side of the locking block 34 close to the stop block 12 has a pre-positioning block 341. When the spring 35 is at rest, the pre-positioning block 341 can be stuck in the stop groove 121. Only a small part of the pre-positioning block 341 is in the stop groove 121, which is convenient for taking out the electromagnetic switch 2 upwards. A wedge-shaped groove 342 matching the wedge block 33 is opened at the position corresponding to the wedge block 33 on the locking block 34;

[0027] The distance between the two limit blocks 11 is the same as the length of the electromagnetic switch 2. The top side of the limit block 11 has a chamfer.

[0028] Reference Figure 2 Figure 2 , both upper and lower side edges of one side of the pre-positioning block 341 close to the stop groove 121 have chamfers. The setting of the chamfers can facilitate the entry of the pre-positioning block 341 into the stop groove 121. When it is necessary to remove the electromagnetic switch 2, only slightly lift the electromagnetic switch 2 upward with a little force.

[0029] To improve the fixing effect, anti-slip patterns are provided on the side walls of the lock block 34 corresponding to the stop block 12.

[0030] The implementation principle of a pre-fixing structure in an embodiment of the present application is as follows:

[0031] During use, the installation table 1 has been previously installed at the position where the electromagnetic switch 2 needs to be installed. When installing the electromagnetic switch 2, only insert the electromagnetic switch 2 along the two limit blocks 11. The locking mechanisms 3 on both sides of the electromagnetic switch 2 are aligned with the stop blocks 12. The pre-positioning block 341 on the side of the lock block 34 in the locking mechanism 3 first touches the stop block 12, and the lock block 34 pushes the spring 35 to compress. Then, when the pre-positioning block 341 crosses the stop block 12 and reaches the position of the stop groove 121, the spring 35 resumes deformation and the pre-positioning block 341 enters the stop groove 121. At this time, the installation of the electromagnetic switch 2 can be initially realized, and the staff can free their hands. Subsequently, only use a long screwdriver to rotate the stud 32, and the stud 32 drives the wedge block 33 to squeeze into the wedge-shaped groove 342, thereby firmly pressing the lock block 34 against the stop block 12, and further completing the installation of the electromagnetic switch 2.

[0032] An embodiment of the present application also discloses an electromagnetic switch 2 using the above pre-fixing structure, which includes the above pre-fixing structure.

[0033] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pre-fixed structure, characterized in that: The invention comprises a mounting platform (1), wherein limit blocks (11) and stop blocks (12) are symmetrically arranged in pairs on the mounting platform (1), wherein the limit blocks (11) and the stop blocks (12) form a square, wherein the cross section of the stop blocks (12) is L-shaped, and a stop groove (121) is formed between the L-shaped stop blocks (12) and the mounting platform (1), The top of the mounting platform (1) is provided with an electromagnetic switch (2), and a locking mechanism (3) is detachably mounted on the side of the electromagnetic switch (2) corresponding to the stop block (12), and the locking mechanism (3) comprises a connecting block (31), a stud (32), a wedge block (33), a locking block (34) and a spring (35), wherein the connecting block (31) is fixed to the electromagnetic switch (2) by screws, the stud (32) is threadedly connected to the connecting block (31), the wedge block (33) is rotatably connected to the bottom end of the stud (32), and the connecting block (31) corresponds to the stop block (12). A guide groove is provided at the position of the wedge block (33); the locking block (34) is radially slidably connected to the bottom of the connecting block (31); the spring (35) is fixed between the locking block (34) and the connecting block (31); a pre-positioning block (341) is provided on the side of the locking block (34) close to the stop block (12); when the spring (35) is stationary, the pre-positioning block (341) can be stuck in the stop groove (121); and a wedge-shaped groove (342) matching the wedge block (33) is provided on the locking block (34) at a position corresponding to the wedge block (33).

2. The pre-fixed structure according to claim 1, characterized in that: The distance between the limit blocks (11) on both sides is the same as the length of the electromagnetic switch (2), and the top side edges of the limit blocks (11) are chamfered.

3. The pre-fixed structure according to claim 1, characterized in that: The upper and lower sides of the pre-positioning block (341) on the side close to the stop groove (121) are both chamfered.

4. The pre-fixed structure according to claim 1, characterized in that: The locking block (34) and the side walls corresponding to the stop block (12) are both provided with anti-slip grooves.

5. An electromagnetic switch, characterized in that: It comprises the pre-fixed structure as described in claims 1 to 4 above.

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