Low-voltage motor protector with limit structure

Abstract

The utility model discloses a low -voltage motor protector with limit structure, include: protector body, riser and limit component, the riser has the installation cavity in, and be provided with the opening of installation cavity communication on the riser, limit component includes fixed link, movable link, first limit ring, second limit ring and mobile part, and the first end of fixed link is connected with the riser, and the first end of movable link inserts the inside of installation cavity through the opening, and movable link removes and sets up in the opening, and the second end of second limit ring with fixed link, and mobile part sets up in the second end of movable link, and first limit ring is connected with mobile part. The utility model can make the wire harness that winds in movable link and fixed link surface can take out fast, make wire harness when using on low -voltage motor protector can avoid producing friction damage, and then make low -voltage motor protector when using can be more safe, solved low -voltage motor protector when using not easy to limit problem.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage motor protectors, and more specifically, to a low-voltage motor protector with a limiting structure. Background Technology

[0002] Currently, the power generation, power supply, and power consumption systems of cigarette factories all require the use of low-voltage motor protectors for protection. These low-voltage motor protectors have protection functions such as overload, phase loss, imbalance, underload, grounding, leakage, and locked rotor protection.

[0003] However, most low-voltage motor protectors tend to cause friction on the surface of the wiring harness during use. Furthermore, low-voltage motor protectors lack a limiting mechanism, which makes the wiring harness prone to damage after prolonged friction. This damage can lead to short circuits when the low-voltage motor protector is in use, making it quite inconvenient.

[0004] Therefore, how to provide a low-voltage motor protector with a limiting structure has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a low-voltage motor protector with a limiting structure.

[0006] According to a first aspect of the present invention, a low-voltage motor protector with a limiting structure is provided, comprising: a protector body, a vertical plate, and a limiting component;

[0007] The vertical plate has a mounting cavity, and the vertical plate is provided with an opening communicating with the mounting cavity;

[0008] The limiting assembly includes a fixed rod, a movable rod, a first limiting ring, a second limiting ring, and a moving part. The first end of the fixed rod is connected to the vertical plate. The first end of the movable rod is inserted into the interior of the mounting cavity through the opening, and the movable rod is movably disposed in the opening. The second limiting ring is connected to the second end of the fixed rod. The moving part is disposed at the second end of the movable rod, and the first limiting ring is connected to the moving part. The moving part is used to drive the first limiting ring to move. The first limiting ring and the second limiting ring are used to fix the wire harness.

[0009] Optionally, the moving part includes a first rack, a gear, and a second rack. The first rack and the second rack are respectively disposed on both sides of the gear. The first rack is connected to the second end of the movable rod. The gear meshes with the first rack and the second rack respectively. The outer wall of the second rack is connected to the first limiting ring.

[0010] Optionally, the limiting assembly further includes a first connecting rod and a second connecting rod, wherein a first end of the first connecting rod is connected to the outer side wall of the second rack, a second end of the first connecting rod is connected to the first limiting ring, a first end of the first connecting rod is connected to the fixed rod, and a second end of the first connecting rod is connected to the second limiting ring;

[0011] Both the first limiting ring and the second limiting ring are semi-circular structures.

[0012] Optionally, the movable part further includes a guide rod and a support rod. The support rod is connected to the second end of the movable rod. The support rod has a guide groove inside. The first end of the guide rod is connected to the side wall of the second rack. The second end of the guide rod is inserted into the guide groove and is slidably connected to the guide groove.

[0013] Optionally, the limiting assembly further includes a vertical rod and a limiting spring. The vertical rod is disposed inside the mounting cavity, and the limiting spring is sleeved on the vertical rod. The first end of the limiting spring is connected to the inner wall of the mounting cavity, and the second end of the limiting spring is connected to the first end of the movable rod.

[0014] Optionally, a heat dissipation vent is provided on the side of the protector body adjacent to the vertical plate, and a filter screen is provided inside the heat dissipation vent.

[0015] Optionally, the surface of the filter screen is provided with an installation rod, the heat dissipation vent is provided with a slot on the side near the installation rod, the heat dissipation vent is provided with a sliding groove on the side away from the slot, and a locking rod is provided inside the sliding groove.

[0016] Optionally, a protective box is provided on the side of the heat dissipation vent near the locking rod.

[0017] Optionally, a connecting seat is connected to the side of the locking rod away from the slide groove, a turntable is connected to one side of the connecting seat, and a rotating rod is connected to the adjacent side of the turntable near the connecting seat.

[0018] The beneficial effects of this utility model are as follows:

[0019] The beneficial effects of this utility model are as follows: by winding the wire harness around the surfaces of the fixed rod and the movable rod, the wire harness can be limited, and the movable rod is pressed, allowing it to move on the surface of the vertical rod. Simultaneously, the movable rod compresses the limiting spring during its movement, allowing the wire harness wound around the surfaces of the movable and fixed rods to be quickly removed. This prevents friction damage when the wire harness is used in the low-voltage motor protector, making the low-voltage motor protector safer to use and solving the aforementioned problem of difficulty in limiting its movement.

[0020] 1. When a low-voltage motor protector is in use, it often leads to damage to the wiring harness. By pressing the movable rod, it can be moved on the surface of the vertical rod. Simultaneously, the movable rod compresses the limiting spring, allowing the wiring harness wrapped around the movable and fixed rod surfaces to be quickly removed. The movement of the movable rod also moves the first rack connected to one side, causing it to rotate the gear meshed with it. This rotation of the gear moves the second rack connected to the other side, displacing the first limiting ring. This allows the first limiting ring to quickly separate the wiring harness plug, enabling the wiring harness and plug to be quickly removed from the low-voltage motor protector. Conversely, winding the wiring harness around the fixed and movable rod surfaces limits its movement, preventing friction damage during use with the low-voltage motor protector and ensuring safer operation.

[0021] 2. When using a low-voltage motor protector, it is usually not easy to replace the protective screen, making it inconvenient to use. By rotating the rotating rod, the rotating rod can rotate the turntable connected to one side, which in turn can move the connecting seat connected to one side. When the connecting seat moves, it can drive the locking rod to move, so that the locking rod can be quickly separated from the mounting rod after being pulled. This allows the filter screen to be quickly removed when using the low-voltage motor protector, thus enabling quick replacement of the protective screen.

[0022] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0024] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 2 This is a side view sectional diagram of the present invention;

[0026] Figure 3 This is a rear view schematic diagram of the gear structure of this utility model;

[0027] Figure 4 This is a side view sectional view of the heat dissipation port of this utility model;

[0028] Figure 5 This is a side view sectional structural diagram of the protective box of this utility model.

[0029] In the diagram: 1. Protector body; 2. Vertical plate; 3. Fixed rod; 4. Movable rod; 5. Vertical rod; 6. Restricting spring; 7. First rack; 8. Gear; 9. Second rack; 10. Guide rod; 11. Support rod; 12. First restricting ring; 13. Second restricting ring; 14. Heat dissipation vent; 15. Filter screen; 16. Mounting rod; 17. Slot; 18. Slide groove; 19. Locking rod; 20. Protective box; 21. Connecting seat; 22. Turntable; 23. Rotating rod. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a low-voltage motor protector with a limiting structure, including: protector body 1, vertical plate 2 and limiting component.

[0035] The vertical plate 2 has a mounting cavity, and the vertical plate 2 has an opening communicating with the mounting cavity. Specifically, the vertical plate 2 is located on the top of the protector body 1.

[0036] The limiting assembly includes a fixed rod 3, a movable rod 4, a first limiting ring 12, a second limiting ring 13, and a moving part. The first end of the fixed rod 3 is connected to the vertical plate 2. The first end of the movable rod 4 is inserted into the interior of the mounting cavity through an opening, and the movable rod 4 is movably disposed in the opening. The second limiting ring 13 is connected to the second end of the fixed rod 3. The moving part is disposed at the second end of the movable rod 4, and the first limiting ring 12 is connected to the moving part. The moving part is used to drive the first limiting ring 12 to move. The first limiting ring 12 and the second limiting ring 13 are used to fix the wire harness.

[0037] Specifically, the wire harness is wound around the surfaces of the movable rod 4 and the fixed rod 3, thereby limiting the wire harness. When the wire harness is damaged and needs to be removed, the operator first applies pressure to the movable rod 4, causing it to move on the surface of the vertical rod 5 and towards the fixed rod 3, reducing the distance between the fixed rod 3 and the movable rod 4. At this time, the moving part drives the first limiting ring 12 to move towards the movable rod 4, causing the first limiting ring 12 and the second limiting ring 13 to separate, thereby releasing the restriction on the wire harness. This allows the operator to quickly remove the wire harness wound around the surfaces of the movable rod 4 and the fixed rod 3, preventing friction damage when the wire harness is used with the low-voltage motor protector, further enhancing the safety of the low-voltage motor protector during use, and solving the problem of difficulty in limiting the wire harness during use.

[0038] In one embodiment of the low-voltage motor protector with a limiting structure of this utility model, the moving part includes a first rack 7, a gear 8 and a second rack 9. The first rack 7 and the second rack 9 are respectively disposed on both sides of the gear 8. The first rack 7 is connected to the second end of the movable rod 4. The gear 8 meshes with the first rack 7 and the second rack 9 respectively. The outer side wall of the second rack 9 is connected to the first limiting ring 12.

[0039] Specifically, when the operator presses the movable lever 4, causing it to move towards the fixed lever 3, the movable lever 4 moves the first rack 7 connected to one side. This causes the first rack 7 to rotate the gear 8 meshing with it on one side. The rotation of the gear 8 then moves the second rack 9, with the first rack 7 and the second rack 9 moving towards each other, i.e., the first rack 7 moves towards the fixed lever 3, and the second rack 9 moves towards the movable lever 4. At this time, the second rack 9 causes the first limiting ring 12 to move towards the movable lever 4, so that the first limiting ring 12 and the second limiting ring 13 separate, thereby releasing the restriction on the wire harness. The gear 8 meshes with the first rack 7 and the second rack 9 respectively, and the first rack 7 drives the gear 8 and the second rack 9 to move, ensuring stability.

[0040] In one embodiment of the low-voltage motor protector with a limiting structure of the present invention, the limiting component further includes a first connecting rod and a second connecting rod. The first end of the first connecting rod is connected to the outer wall of the second rack 9, the second end of the first connecting rod is connected to the first limiting ring 12, the first end of the first connecting rod is connected to the fixing rod 3, and the second end of the first connecting rod is connected to the second limiting ring 13.

[0041] Both the first limiting ring 12 and the second limiting ring 13 are semi-circular structures, and the first limiting ring 12 and the second limiting ring 13 interlock to form a circular structure, thereby fixing and limiting the wire harness.

[0042] This utility model connects the first end of the first connecting rod to the outer wall of the second rack 9, the second end of the first connecting rod to the first limiting ring 12, the first end of the first connecting rod to the fixing rod 3, and the second end of the first connecting rod to the second limiting ring 13, thereby providing support for the first limiting ring 12 and the second limiting ring 13, and increasing the stability and safety during use.

[0043] In one embodiment of the low-voltage motor protector with a limiting structure of this utility model, the moving part further includes a guide rod 10 and a support rod 11. The support rod 11 is connected to the second end of the movable rod 4. A guide groove is provided inside the support rod 11. The first end of the guide rod 10 is connected to the side wall of the second rack 9. The second end of the guide rod 10 is inserted into the guide groove and is slidably connected with the guide groove.

[0044] Specifically, the length of the guide groove is less than the length of the support rod 11. When the second rack 9 moves toward the movable rod 4 or toward the fixed rod 3 under the drive of the gear 8, the guide rod 10 moves in the guide groove, providing a limiting effect on the movement direction of the second rack 9, which further increases the stability of the movement of the second rack 9.

[0045] In one embodiment of the low-voltage motor protector with a limiting structure of this utility model, the limiting component further includes a vertical rod 5 and a limiting spring 6. The vertical rod 5 is disposed inside the mounting cavity, and the limiting spring 6 is sleeved on the vertical rod 5. The first end of the limiting spring 6 is connected to the inner wall of the mounting cavity, and the second end of the limiting spring 6 is connected to the first end of the movable rod 4.

[0046] Specifically, when the operator presses the movable rod 4 and moves it toward the fixed rod 3, the movable rod 4 can move on the surface of the vertical rod 5. At the same time, when the movable rod 4 moves, it can squeeze the limiting spring 6, thereby allowing the wire harness wrapped around the surfaces of the movable rod 4 and the fixed rod 3 to be quickly removed.

[0047] When the operator releases the pressure on the movable lever 4, the movable lever 4 returns to its initial position under the action of the limiting spring 6.

[0048] For specific implementation, please refer to Figure 1 , Figure 2 and Figure 3 It is known that when a low-voltage motor protector is in use, it often leads to damage to the wiring harness. By pressing the movable rod 4, the movable rod 4 can move on the surface of the vertical rod 5. At the same time, when the movable rod 4 moves, it can compress the limiting spring 6, thereby allowing the wiring harness wrapped around the surfaces of the movable rod 4 and the fixed rod 3 to be quickly removed. Simultaneously, when the movable rod 4 moves, it can move the first rack 7 connected on one side, thereby causing the first rack 7 to rotate the gear 8 meshed on one side. Thus, when the gear 8 rotates, it can rotate the gear 8 meshed on the other side. The second rack 9 is moved, causing the first limiting ring 12 connected to one side to move. This allows the first limiting ring 12 to quickly separate the wire harness plug, enabling the wire harness and plug to be quickly removed from the low-voltage motor protector. Conversely, the wire harness is wrapped around the surfaces of the fixed rod 3 and the movable rod 4, limiting its movement and preventing friction damage when used on the low-voltage motor protector, thus making the low-voltage motor protector safer to use.

[0049] In one embodiment of the low-voltage motor protector with a limiting structure of this utility model, a heat dissipation port 14 is provided on the side of the protector body 1 adjacent to the vertical plate 2, a filter screen 15 is provided inside the heat dissipation port 14, and a mounting rod 16 is provided on the surface of the filter screen 15.

[0050] Specifically, the mounting rods 16 are respectively set at the top and bottom of the filter screen 15.

[0051] The filter 15 physically intercepts contaminants, indirectly ensuring stable electrical performance, efficient heat dissipation, and long-term reliability.

[0052] In one embodiment of the low-voltage motor protector with a limiting structure of this utility model, a slot 17 is provided on the side of the heat dissipation port 14 near the mounting rod 16, and a sliding groove 18 is provided on the side of the heat dissipation port 14 away from the slot 17. A locking rod 19 is provided inside the sliding groove 18.

[0053] Specifically, slots 17 are located on both sides of the heat dissipation vent 14, and there are four slots 17 and four mounting rods 16. The mounting rods 16 are inserted into the slots 17 to install the filter screen 15. The slide 18 is connected to the slots 17. The slots 17 are vertically set, and the slide 18 is horizontally set. The locking rod 19 rotates within the slide 18.

[0054] Additionally, a connecting groove is provided on the mounting rod 16 located at the top of the filter screen 15. When the locking rod 19 rotates into the slot 17 and engages with the connecting groove, the locking rod 19 can fix the filter screen 15. When the locking rod 19 is removed from the connecting groove, the filter screen 15 can be removed from the slot 17.

[0055] Furthermore, a protective box 20 is provided on the side of the heat dissipation vent 14 near the locking rod 19.

[0056] A connecting seat 21 is connected to the side of the locking rod 19 away from the slide groove 18, a turntable 22 is connected to one side of the connecting seat 21, and a rotating rod 23 is connected to the side of the turntable 22 adjacent to the connecting seat 21.

[0057] For specific implementation, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 It is known that when a low-voltage motor protector is in use, it is usually not easy to replace the protective screen, making the use of the low-voltage motor protector inconvenient. By rotating the rotating rod 23, the rotating rod 23 can rotate the turntable 22 connected to one side, and the turntable 22 can move the connecting seat 21 connected to one side. When the connecting seat 21 moves, it can drive the locking rod 19 to move, so that the locking rod 19 can quickly separate from the mounting rod 16 after being pulled. This allows the filter screen 15 to be quickly removed when the low-voltage motor protector is in use, thus enabling the replacement of the protective screen quickly.

[0058] In summary, this utility model limits the wire harness by winding it around the surfaces of the fixed rod 3 and the movable rod 4, while simultaneously pressing the movable rod 4 to allow it to move on the surface of the vertical rod 5. During this movement, the movable rod 4 compresses the limiting spring 6, allowing the wire harness wound around the surfaces of the movable rod 4 and the fixed rod 3 to be quickly removed. This prevents friction damage when the wire harness is used in the low-voltage motor protector, thus making the low-voltage motor protector safer to use. Any content not described in detail herein is prior art known to those skilled in the art.

[0059] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A low-voltage motor protector with a limiting structure, characterized in that, include: Protector body, vertical plate, and limit assembly; The vertical plate has a mounting cavity, and the vertical plate is provided with an opening communicating with the mounting cavity; The limiting assembly includes a fixed rod, a movable rod, a first limiting ring, a second limiting ring, and a moving part. The first end of the fixed rod is connected to the vertical plate. The first end of the movable rod is inserted into the interior of the mounting cavity through the opening, and the movable rod is movably disposed in the opening. The second limiting ring is connected to the second end of the fixed rod. The moving part is disposed at the second end of the movable rod, and the first limiting ring is connected to the moving part. The moving part is used to drive the first limiting ring to move. The first limiting ring and the second limiting ring are used to fix the wire harness.

2. The low-voltage motor protector with a limiting structure according to claim 1, characterized in that, The moving part includes a first rack, a gear, and a second rack. The first rack and the second rack are respectively disposed on both sides of the gear. The first rack is connected to the second end of the movable rod. The gear meshes with the first rack and the second rack respectively. The outer wall of the second rack is connected to the first limiting ring.

3. The low-voltage motor protector with a limiting structure according to claim 2, characterized in that, The limiting assembly further includes a first connecting rod and a second connecting rod. The first end of the first connecting rod is connected to the outer wall of the second rack, the second end of the first connecting rod is connected to the first limiting ring, the first end of the first connecting rod is connected to the fixed rod, and the second end of the first connecting rod is connected to the second limiting ring. Both the first limiting ring and the second limiting ring are semi-circular structures.

4. The low-voltage motor protector with a limiting structure according to claim 2, characterized in that, The movable part further includes a guide rod and a support rod. The support rod is connected to the second end of the movable rod. The support rod has a guide groove inside. The first end of the guide rod is connected to the side wall of the second rack. The second end of the guide rod is inserted into the guide groove and is slidably connected to the guide groove.

5. The low-voltage motor protector with a limiting structure according to claim 2, characterized in that, The limiting assembly also includes a vertical rod and a limiting spring. The vertical rod is disposed inside the mounting cavity, and the limiting spring is sleeved on the vertical rod. The first end of the limiting spring is connected to the inner wall of the mounting cavity, and the second end of the limiting spring is connected to the first end of the movable rod.

6. The low-voltage motor protector with a limiting structure according to claim 1, characterized in that, The protector body has a heat dissipation vent on the side adjacent to the vertical plate, and a filter screen is installed inside the heat dissipation vent.

7. The low-voltage motor protector with a limiting structure according to claim 6, characterized in that, The surface of the filter screen is provided with an installation rod, the heat dissipation vent is provided with a slot on the side near the installation rod, the heat dissipation vent is provided with a sliding groove on the side away from the slot, and a locking rod is provided inside the sliding groove.

8. The low-voltage motor protector with a limiting structure according to claim 7, characterized in that, A protective box is provided on the side of the heat dissipation vent near the locking rod.

9. The low-voltage motor protector with a limiting structure according to claim 8, characterized in that, The locking rod is connected to a connecting seat on the side away from the slide groove, a turntable is connected to one side of the connecting seat, and a rotating rod is connected to the side of the turntable adjacent to the connecting seat.

Images