Suspension type grinding machine electric leakage protection device

Abstract

The utility model discloses a suspension type grinding machine electric leakage protection device which comprises a clamping structure, an installation structure and an electric leakage protector body, the electric leakage protector body is arranged on the installation structure, the installation structure comprises a movable plate, the electric leakage protector body is matched with a clamping rail on the movable plate in a clamping mode, and the movable plate is provided with a clamping groove. A fixed plate is arranged on one side of the movable plate, the fixed plate is connected with the clamping structure, the clamping structure comprises a connecting strip, the connecting strip is connected with the fixed plate, two clamping blocks are arranged in a sliding groove formed in the connecting strip in a sliding mode, a positive and negative tooth screw rod is arranged in the sliding groove, and the two clamping blocks are connected with the movable plate. One end of the positive and negative tooth screw rod is connected with the connecting strip through a rotating shaft, the other end, penetrating through the connecting strip, of the positive and negative tooth screw rod is provided with a rotating handle, and the insertion ends of the two clamping blocks are in threaded connection with the two threaded sections of the positive and negative tooth screw rod respectively. According to the utility model, the leakage protector body can be rapidly clamped at the switch, and the leakage protector body can be rapidly installed.

Description

Technical Field

[0001] This utility model relates to the field of leakage protection technology, specifically a leakage protection device for a suspended grinding wheel machine. Background Technology

[0002] A suspended grinding wheel machine is a fixed-installation electric grinding wheel device, commonly used for metal processing, post-weld grinding, deburring, or cutting. Its features include suspended installation, flexible operation, and suitability for high-intensity, long-term work.

[0003] The suspended grinding machine is installed in a suspended configuration. A corresponding switch is installed on the wall or frame next to the machine to control its power supply. A residual current device (RCD) is installed on the wall or frame next to the switch. The RCD monitors the current difference between the live wire and the neutral wire in real time through a built-in current transformer. Under normal circumstances, the inflow and outflow currents are equal; if leakage occurs and the current difference exceeds a set threshold, the device will cut off the circuit within 0.1 seconds, thus providing protection.

[0004] However, typical residual current devices (RCDs) are usually fixed to walls or racks with bolts, which is troublesome to drill and inconvenient to install.

[0005] In view of this, we propose a leakage protection device for suspended grinding machines. Utility Model Content

[0006] The purpose of this utility model is to provide a leakage protection device for a suspended grinding machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a suspended grinding wheel machine leakage protection device, comprising a clamping structure, an installation structure, and a leakage protection device body. The leakage protection device body is mounted on the installation structure. The installation structure includes a movable plate, on which a snap-fit ​​rail is fixedly mounted. The leakage protection device body is snap-fitted into the snap-fit ​​rail. A fixed plate is provided on one side of the movable plate, and the fixed plate is connected to the clamping structure. The clamping structure includes a connecting strip, which is fixedly connected to the fixed plate. Two clamping blocks are symmetrically slidably arranged in a groove on one side of the connecting strip. The clamping blocks extend out of the groove, and a positive and negative threaded rod is provided in the groove. One end of the positive and negative threaded rod is rotatably connected to the connecting strip via a rotating shaft. The other end of the positive and negative threaded rod passing through the connecting strip is fixedly provided with a rotating handle. The insertion ends of the two clamping blocks are respectively threadedly connected to the two threaded sections of the positive and negative threaded rod. The extension sections of the two clamping blocks are used for switch clamping.

[0008] Preferably, the clamping block insertion section is located within the slide groove, and the outer wall of the clamping block insertion section contacts and engages with the inner wall of the slide groove.

[0009] Preferably, the height of the slide is greater than the height of the switch.

[0010] Preferably, rubber pads are respectively attached and fixed to the opposite sides of the two clamping block extensions.

[0011] Preferably, the fixed plate and the movable plate are connected by a telescopic rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up connecting strips, sliding grooves, clamping blocks, rubber pads, screws, rotating shafts, and rotating handles, has the advantages of quickly snapping the body of the leakage current protection device onto the switch and quickly installing the body of the leakage current protection device. It solves the problem that leakage current protection devices are normally fixed to the wall or frame with bolts, which is troublesome to drill and not convenient to install.

[0014] 2. This utility model has the advantage of adjusting the position of the leakage current protection device body according to the actual installation position by setting a fixed plate, a movable plate and a telescopic rod. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure after installation of this utility model;

[0016] Figure 2 This is a schematic diagram of the separated structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of this utility model.

[0019] In the diagram: 100, clamping structure; 200, mounting structure; 300, residual current device body; 101, connecting strip; 102, clamping block; 103, rubber pad; 104, positive and negative threaded screw; 105, rotating shaft; 106, rotating handle;

[0020] 1011. Slide groove;

[0021] 201. Fixed plate; 202. Movable plate; 203. Snap-on rail; 204. Telescopic rod. Detailed Implementation

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

[0023] Example 1, please refer to Figures 1 to 3 This utility model provides an embodiment of a leakage current protection device for a suspended grinding machine, comprising a clamping structure 100, a mounting structure 200, and a leakage current protection device body 300. The leakage current protection device body 300, a switch, and the suspended grinding machine are electrically connected. The leakage current protection device body 300 is mounted on the mounting structure 200. The mounting structure 200 includes a movable plate 202, on which a snap-fit ​​rail 203 is fixedly mounted. The leakage current protection device body 300 engages with the snap-fit ​​rail 203. A fixed plate 201 is provided on one side of the movable plate 202, and the fixed plate 201 is connected to the clamping structure 100. The clamping structure 100 includes a connecting strip 101, which is fixedly connected to the fixed plate 201. A groove 101 is provided on one side of the connecting strip 101, within which symmetrical sliding grooves slidably provide… Two clamping blocks 102 are provided. The insertion section of the clamping block 102 is located in the slide groove 1011. The outer wall of the insertion section of the clamping block 102 is in contact with the inner wall of the slide groove 1011. The insertion section of the clamping block 102 remains stable when moving along the slide groove 1011. The clamping blocks 102 extend out of the slide groove 1011. Rubber pads 103 are respectively attached and fixed on opposite sides of the extension sections of the two clamping blocks 102. The height of the slide groove 1011 is greater than the height of the switch. A positive and negative threaded screw 104 is provided in the slide groove 101. One end of the positive and negative threaded screw 104 is rotatably connected to the connecting bar 101 through a rotating shaft 105. The other end of the positive and negative threaded screw 104 passing through the connecting bar 101 is fixed with a rotating handle 106. The insertion ends of the two clamping blocks 102 are respectively threadedly connected to the two threaded sections of the positive and negative threaded screw 104. The extension sections of the two clamping blocks 102 are used for switch clamping. The switch is installed on the wall or rack. The residual current device (RCD) body 300 is snapped into the snap-in rail 203. When the operator rotates the handle 106, the positive and negative thread screw 104 rotates, and the two clamping blocks 102 move away from each other along the slide groove 1011, increasing the distance between the two clamping blocks 102 and aligning them with the end of the switch box. When the handle 106 is rotated in the opposite direction, the positive and negative thread screw 104 rotates in the opposite direction, and the two clamping blocks 102 move relative to each other along the slide groove 1011 until the two clamping blocks 102 clamp the end of the switch box, and the rubber pad 103 abuts against the switch box, thereby clamping and positioning the RCD body 300.

[0024] This utility model, by setting up a connecting strip 101, a sliding groove 1011, a clamping block 102, a rubber pad 103, a positive and negative threaded screw 104, a rotating shaft 105, and a rotating handle 106, has the advantages of quickly snapping the leakage current protector body 300 onto the switch and quickly installing the leakage current protector body 300. It solves the problem that leakage current protectors are normally fixed to the wall or frame with bolts, which is troublesome to drill and not convenient to install.

[0025] Example 2, please refer to Figure 1 , Figure 2 and Figure 4 This utility model provides one embodiment: a suspended grinding wheel machine leakage protection device, wherein a fixed plate 201 is provided on one side of the movable plate 202, and the fixed plate 201 and the movable plate 202 are connected by a telescopic rod 204. When the operator pulls the movable plate 202, the movable plate 202 moves relative to the fixed plate 201, and the telescopic rod 204 is stretched or shortened accordingly, adjusting the position of the leakage protection device body 300.

[0026] This utility model, by setting a fixed plate 201, a movable plate 202 and a telescopic rod 204, has the advantage of adjusting the position of the leakage current protection device body 300 according to the actual installation position requirements.

[0027] Working principle: The switch is installed on the wall or rack. The residual current device (RCD) body 300 is snapped into the locking rail 203. When the operator rotates the handle 106, the threaded screw 104 rotates, and the two clamping blocks 102 move away from each other along the slide groove 1011, increasing the distance between the two clamping blocks 102 and aligning them with the end of the switch box. Rotating the handle 106 in the opposite direction causes the threaded screw 104 to rotate in the opposite direction, and the two clamping blocks 102 move relative to each other along the slide groove 1011 until they clamp the end of the switch box. The rubber pad 103 abuts against the switch box, thus holding and positioning the RCD body 300. The operator pulls the movable plate 202, which moves relative to the fixed plate 201. The telescopic rod 204 is stretched or shortened accordingly, adjusting the position of the RCD body 300 according to the actual installation location. The RCD body 300, the switch, and the suspended grinding wheel are connected by wires.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A leakage current protection device for a suspended grinding wheel machine, characterized in that: The device includes a clamping structure (100), a mounting structure (200), and a residual current device (RCD) body (300). The RCD body (300) is mounted on the mounting structure (200). The mounting structure (200) includes a movable plate (202) with a snap-fit ​​rail (203). The RCD body (300) engages with the snap-fit ​​rail (203). A fixed plate (201) is provided on one side of the movable plate (202) and is connected to the clamping structure (100). The clamping structure (100) includes a connecting strip (101). The connecting strip (101) is connected to the fixing plate (201). Two clamping blocks (102) are slidably provided in the slide groove (1011) opened on one side of the connecting strip (101). A positive and negative thread screw (104) is provided in the slide groove (1011). One end of the positive and negative thread screw (104) is connected to the connecting strip (101) through the rotating shaft (105). The other end of the positive and negative thread screw (104) passing through the connecting strip (101) is provided with a rotating handle (106). The insertion ends of the two clamping blocks (102) are respectively threaded to the two threaded sections of the positive and negative thread screw (104). The two clamping blocks (102) are used for switch clamping.

2. The leakage protection device for a suspended grinding wheel machine according to claim 1, characterized in that: The insertion section of the clamping block (102) is located in the slide groove (1011), and the outer wall of the insertion section of the clamping block (102) is in contact with the inner wall of the slide groove (1011).

3. The leakage protection device for a suspended grinding wheel machine according to claim 2, characterized in that: The height of the slide (1011) is greater than the height of the switch.

4. The leakage protection device for a suspended grinding wheel machine according to claim 1, characterized in that: Rubber pads (103) are provided on opposite sides of the extensions of the two clamping blocks (102).

5. The leakage protection device for a suspended grinding wheel machine according to claim 1, characterized in that: The fixed plate (201) and the movable plate (202) are connected by a telescopic rod (204).

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