Corrosion-resistant explosion-proof switch

Abstract

The utility model provides a corrosion-resistant explosion-proof switch, which comprises an explosion-proof shell, a plurality of grasping teeth are fixedly arranged on one side of the bottom end of a side cover plate, moving plates are movably arranged on two sides of the top of the explosion-proof shell, and one end of each moving plate is movably connected with a pull rod; according to the explosion-proof switch, the explosion-proof shell with the anti-corrosion capability is arranged, the side cover plates with the grasping teeth are arranged on the two sides of the explosion-proof shell, during installation, the explosion-proof shell is aligned to the top of an existing explosion-proof switch, then the explosion-proof switch is covered with the explosion-proof shell, the two side cover plates are in an open state before installation, and when the positions of the side cover plates are aligned to the bottom of the explosion-proof switch, the explosion-proof switch is installed. Then a knob is rotated to drive a rotating rod to rotate, when the rotating rod rotates, a first bevel gear and a second bevel gear drive a moving plate to move towards the outside, then a pull rod pushes a side cover plate to move towards the inner side, grasping teeth are clamped on the bottom end face of the explosion-proof switch, and therefore installation of the explosion-proof shell is achieved, and installation is simple and rapid.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical switches and relates to a corrosion-resistant explosion-proof switch. Background Art

[0002] Explosion-proof switches are mainly used in machinery and equipment in manufacturing plants and system power supply occasions where explosive gas or explosive dust environments may exist, especially external electrical equipment such as motors, pumps, and lighting equipment; they are used in process control devices in dangerous manufacturers and factories, or in explosive environments with flammable gas, steam, mist gas or flammable dust. Current explosion-proof switches are mainly made of metal materials. However, explosion-proof switches made of metal materials have the problems of heavy weight, easy corrosion and high preparation cost. Therefore, a layer of corrosion-resistant switch housing structure can be added to the outside of the explosion-proof switch to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a corrosion-resistant explosion-proof switch to solve the problems raised in the above-mentioned background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A corrosion-resistant explosion-proof switch comprises an explosion-proof shell, a side cover plate, a movable plate, a support, a pull rod and a displacement slide. A rotating shaft is arranged on both sides of the explosion-proof shell through bearings, a support is arranged in the middle of the rotating shaft, the bottom end of the support is fixedly connected with a side cover plate, a plurality of gripping teeth are fixedly arranged on one side of the bottom end of the side cover plate, movable plates are movably arranged on both sides of the top of the explosion-proof shell, one end of the movable plate is movably connected with a pull rod, and one end of the pull rod is fixedly connected to the top end of the support, and a torsion spring is sleeved on one end of the rotating shaft.

[0006] In the above-mentioned corrosion-resistant explosion-proof switch, a dustproof rubber pad is arranged at the bottom end of the explosion-proof housing, an adhesive surface is arranged inside the bottom end of the dustproof rubber pad, and a release film is adhered to the outside of the adhesive surface.

[0007] In the above-mentioned corrosion-resistant explosion-proof switch, a traction slide groove is provided on the top of the explosion-proof housing, a displacement slide seat is connected to the bottom end of the movable plate, and the displacement slide seat is slidably connected inside the traction slide groove.

[0008] In the above-mentioned corrosion-resistant explosion-proof switch, a lead screw is movably arranged inside the traction slide groove, both ends of the lead screw are threadedly sleeved with the displacement slide seat, and the threads at both ends of the lead screw are arranged in opposite directions.

[0009] In the above-mentioned corrosion-resistant explosion-proof switch, a bevel gear 1 is arranged in the middle of the lead screw, and a bevel gear 2 is meshedly connected to one side of the bevel gear 1.

[0010] In the above-mentioned corrosion-resistant explosion-proof switch, a knob is provided on the side of the explosion-proof housing, one end of the knob is fixedly connected to a rotating rod, and one end of the rotating rod is fixedly connected to the axis of the second bevel gear.

[0011] Compared with the prior art, the corrosion-resistant explosion-proof switch of the utility model has the following advantages:

[0012] The present application provides an explosion-proof shell with corrosion resistance, and side covers with gripping teeth are provided on both sides of the explosion-proof shell. During installation, the explosion-proof shell is aligned with the top of the existing explosion-proof switch, and then covered on the outside of the explosion-proof switch. Before installation, the two side covers are in an open state. When the position of the side cover is aligned with the bottom of the explosion-proof switch, the knob is turned to drive the rotating rod to rotate. When the rotating rod rotates, the movable plate is driven to move toward the outside through the bevel gear 1 and the bevel gear 2, and then the side cover is pushed toward the inside through the pull rod, so that the gripping teeth are stuck on the bottom end face of the explosion-proof switch, thereby realizing the installation of the explosion-proof shell, and the installation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the corrosion-resistant explosion-proof switch of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the enlarged structure of the lead screw of the corrosion-resistant explosion-proof switch.

[0015] Figure 3 The utility model is a schematic diagram of the structure of a side cover plate of a corrosion-resistant explosion-proof switch.

[0016] In the figure, 1. explosion-proof casing; 2. side cover; 3. dust-proof rubber pad; 4. torsion spring; 5. moving plate; 6. lead screw; 7. rotating shaft; 8. support; 9. gripping teeth; 10. pull rod; 11. displacement slide; 12. knob; 13. bevel gear one; 14. bevel gear two; 15. rotating rod. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] A corrosion-resistant explosion-proof switch comprises an explosion-proof casing 1, a side cover plate 2, a movable plate 5, a support 8, a pull rod 10 and a displacement slide 11. A rotating shaft 7 is arranged on both sides of the explosion-proof casing 1 through bearings, a support 8 is arranged in the middle of the rotating shaft 7, the bottom end of the support 8 is fixedly connected with the side cover plate 2, a plurality of grasping teeth 9 are fixedly arranged on one side of the bottom end of the side cover plate 2, movable plates 5 are movably arranged on both sides of the top of the explosion-proof casing 1, one end of the movable plate 5 is movably connected with a pull rod 10, and one end of the pull rod 10 is fixedly connected to the top of the support 8, and a torsion spring 4 is sleeved on one end of the rotating shaft 7.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the corrosion-resistant explosion-proof switch of the utility model is specifically provided with a dustproof rubber pad 3 at the bottom end of the explosion-proof housing 1, a bonding surface is provided on the inner side of the bottom end of the dustproof rubber pad 3, and a release film is bonded to the outside of the bonding surface.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the corrosion-resistant explosion-proof switch of the utility model, specifically, a traction slide groove is opened on the top of the explosion-proof housing 1, a displacement slide seat 11 is connected to the bottom end of the movable plate 5, and the displacement slide seat 11 is slidably connected to the inside of the traction slide groove.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the corrosion-resistant explosion-proof switch of the utility model is specifically provided with a lead screw 6 inside the traction slide slot, both ends of the lead screw 6 are threadedly sleeved with the displacement slide seat 11, and the threads at both ends of the lead screw 6 are arranged in opposite directions.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, the corrosion-resistant explosion-proof switch of the utility model, specifically, a bevel gear 13 is provided in the middle of the lead screw 6, and a bevel gear 2 14 is meshedly connected to one side of the bevel gear 13.

[0023] like Figure 1 , Figure 2 , Figure 3 As shown, the corrosion-resistant explosion-proof switch of the utility model is specifically provided with a knob 12 on the side of the explosion-proof housing 1, one end of the knob 12 is fixedly connected to a rotating rod 15, and one end of the rotating rod 15 is fixedly connected to the axis of the bevel gear 2 14.

[0024] The utility model discloses a corrosion-resistant explosion-proof switch. The utility model provides an explosion-proof shell 1 with corrosion resistance. The explosion-proof shell 1 is made of corrosion-resistant material, and side covers 2 with gripping teeth 9 are provided on both sides of the explosion-proof shell 1. When installing, the explosion-proof shell 1 is aligned with the top of the existing explosion-proof switch and covered on the outside of the explosion-proof switch. Before installation, the two side covers 2 are in an open state. When the position of the side cover 2 is aligned with the bottom of the explosion-proof switch, the knob 12 is then turned to drive the rotating rod 15 to rotate. When the rotating rod 15 rotates, the movable plate 5 is driven to move toward the outside through the bevel gear 13 and the bevel gear 2 14, and then the side cover 2 is pushed toward the inside through the pull rod 10, so that the gripping teeth 9 are stuck on the bottom end surface of the explosion-proof switch, thereby realizing the installation of the explosion-proof shell 1. After the explosion-proof switch is equipped with a layer of explosion-proof shell 1, its corrosion resistance can be greatly improved, and the explosion-proof shell 1 of the utility model is also simple and quick to install.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A corrosion-resistant explosion-proof switch, comprising an explosion-proof housing (1), a side cover plate (2), a movable plate (5), a support (8), a pull rod (10) and a displacement slide seat (11), characterized in that: A rotating shaft (7) is provided on both sides of the explosion-proof housing (1) via bearings, a support (8) is provided in the middle of the rotating shaft (7), the bottom end of the support (8) is fixedly connected to a side cover plate (2), a plurality of gripping teeth (9) are fixedly provided on one side of the bottom end of the side cover plate (2), a movable plate (5) is movably provided on both sides of the top of the explosion-proof housing (1), one end of the movable plate (5) is movably connected to a pull rod (10), and one end of the pull rod (10) is fixedly connected to the top of the support (8), and a torsion spring (4) is sleeved on one end of the rotating shaft (7).

2. The corrosion-resistant explosion-proof switch according to claim 1, characterized in that: A dustproof rubber pad (3) is arranged at the bottom end of the explosion-proof housing (1), an adhesive surface is arranged on the inner side of the bottom end of the dustproof rubber pad (3), and a release film is adhered to the outside of the adhesive surface.

3. The corrosion-resistant explosion-proof switch according to claim 1, characterized in that: A traction slide groove is provided on the top of the explosion-proof housing (1), a displacement slide seat (11) is connected to the bottom end of the movable plate (5), and the displacement slide seat (11) is slidably connected inside the traction slide groove.

4. The corrosion-resistant explosion-proof switch according to claim 3, characterized in that: A lead screw (6) is movably arranged inside the traction slide groove, and both ends of the lead screw (6) are threadedly sleeved with the displacement slide seat (11), and the thread directions of the two ends of the lead screw (6) are opposite.

5. The corrosion-resistant explosion-proof switch according to claim 4, characterized in that: A bevel gear 1 (13) is arranged in the middle of the lead screw (6), and a bevel gear 2 (14) is meshedly connected to one side of the bevel gear 1 (13).

6. The corrosion-resistant explosion-proof switch according to claim 5, characterized in that: A knob (12) is provided on the side of the explosion-proof housing (1), one end of the knob (12) is fixedly connected to a rotating rod (15), and one end of the rotating rod (15) is fixedly connected to the axis of the second bevel gear (14).

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