Emergency stop device matched with coal mine underground electrical equipment

Abstract

The invention belongs to the technical field of underground coal mine electrical equipment, and particularly relates to an emergency stop device matched with the underground coal mine electrical equipment. Comprising an emergency stop seat, the emergency stop seat is fixed on a shell, one side is a shell interior, the other side is a shell interior, and a first through hole is formed in the middle of the emergency stop seat; the emergency stop rod penetrates into the first through hole of the emergency stop seat and can slide along the first through hole, when one end in a shell of the emergency stop rod slides to the limit, the contact of the switch is pressed and contacted, and a second through hole is formed in the middle of the emergency stop rod; and the copper rod is arranged in the second through hole in a penetrating manner and is fixed with the emergency stop seat.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment in coal mines, in particular to an emergency stop device matching electrical equipment in coal mines. Background Art

[0002] Electrical equipment in coal mines works in explosive hazardous environments and needs to meet explosion-proof requirements. There are generally two ways to match the emergency stop switch device for mining electrical equipment. The first is that the emergency stop device is independent of the switch device and triggers the emergency stop action of the electrical device by providing an electrical signal to the mining electrical equipment. The second type is that the electrical equipment is equipped with a trigger emergency stop switch mechanism to meet the emergency stop requirements. The second type of emergency stop device is used for emergency stop signals on mobile equipment, but lacks the emergency stop safety padlock function. Summary of the invention

[0003] The invention provides an emergency stop device for electrical equipment in coal mines in order to solve the problem that the existing emergency stop device for electrical equipment in coal mines is independent of the electrical equipment or lacks the emergency stop safety padlock function.

[0004] The present invention adopts the following technical scheme: an emergency stop device for electrical equipment in coal mines, comprising: An emergency stop seat, wherein the emergency stop seat is fixed on the shell, one side of the emergency stop seat is inside the shell, and the other side is inside the shell, and a first through hole is arranged in the middle of the emergency stop seat; An emergency stop rod, the emergency stop rod is inserted into the first through hole of the emergency stop seat and can slide along the first through hole. When one end of the emergency stop rod inside the housing slides to the limit, the contact of the switch is pressed. A second through hole is set in the middle of the emergency stop rod; The copper rod is inserted into the second through hole, a third through hole is arranged on the copper rod, and the copper rod is fixed to the emergency stop seat through the third through hole and the emergency stop seat through a first fastener group.

[0005] In some embodiments, a copper sleeve is sleeved on the emergency stop rod, and the copper sleeve is fixed on the emergency stop seat by interference fit.

[0006] In some embodiments, the emergency stop seat is provided with a first ball groove and a second ball groove; the emergency stop rod has two ball holes; the ball is embedded in the ball hole of the emergency stop rod, and the ball is pressed into the first ball groove or the second ball groove of the emergency stop seat by a spring.

[0007] In some embodiments, a button head is installed at one end of the emergency stop lever housing.

[0008] In some embodiments, the switch is disposed inside the housing and the switch is mounted on a switch plate.

[0009] In some embodiments, there is a hole on the copper rod for hanging a safety lock to prevent accidental operation.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The emergency stop rod and the copper sleeve of the present invention form a first explosion-proof joint surface, and the emergency stop rod and the copper rod form a explosion-proof joint surface. The explosion-proof joint surface and the explosion-proof joint surface meet the explosion-proof surface requirements of GB3836.2-2021 "Explosive Atmosphere Part 2: Equipment Protected by Flameproof Enclosure "d"".

[0011] The emergency stop rod and the copper sleeve form the first explosion-proof joint surface, and the emergency stop rod and the copper rod form the second explosion-proof joint surface. The first explosion-proof joint surface and the second explosion-proof joint surface meet the explosion-proof surface requirements of GB3836.2-2021 "Explosive Atmosphere Part 2: Equipment Protected by Flameproof Enclosure "d"", which meets the explosion isolation inside and outside the enclosure, and also enables the emergency stop rod to slide on the first explosion-proof joint surface and the second explosion-proof surface.

[0012] In addition, the present invention can not only meet the explosion-proof requirements but also provide a device with a safety padlock function, thereby realizing the emergency stop function of electrical equipment in underground coal mines and preventing non-professional operators from making erroneous operations and causing personal and equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structural diagram of the present invention; In the figure, 10-emergency stop seat, 101-first through hole, 20-emergency stop rod, 201-second through hole, 120-button head, 30-copper rod, 301-third through hole, 302-fourth through hole, 40-copper sleeve, 50-spring, 60-ball, 70-third fastener group, 80-first fastener group, 90-second fastener group, 100-switch plate, 110-switch. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, an emergency stop device for electrical equipment in coal mines comprises: The emergency stop seat 10 is fixed on the shell, one side of which is inside the shell, and the other side is inside the shell. A first through hole 101 is provided in the middle of the emergency stop seat 10; The emergency stop rod 20 is inserted into the first through hole 101 of the emergency stop seat 10 and can slide along the first through hole 101. When one end of the emergency stop rod 20 slides to the limit, the contact of the touch switch 110 is pressed. A second through hole 201 is set in the middle of the emergency stop rod 20; The copper rod 30 is passed through the second through hole 201 and fixed to the emergency stop seat 10. The copper rod 30 is fixed to the emergency stop seat 10 through the first fastener set 80.

[0016] The emergency stop rod 20 is sleeved with a copper sleeve 40, which is fixed on the emergency stop seat 10 by interference fit. The emergency stop rod 20 and the copper sleeve 40 form a first explosion-proof joint surface, the emergency stop rod 20 and the copper rod 30 form a second explosion-proof joint surface, and the emergency stop rod slides on the first explosion-proof joint surface and the second explosion-proof surface.

[0017] The emergency stop rod 20 is sleeved with a copper sleeve 40 , and the copper sleeve 40 is fixed on the emergency stop seat 10 through interference fit.

[0018] The emergency stop seat 10 is provided with a first ball groove and a second ball groove; the emergency stop rod 20 is provided with two ball holes; the ball 60 is embedded in the ball hole of the emergency stop rod 20, and the ball 60 is pressed into the first ball groove or the second ball groove of the emergency stop seat 10 by the spring 50.

[0019] A button head 120 is installed at one end outside the housing of the emergency stop rod 20 .

[0020] The switch 110 is disposed inside the housing, and the switch 110 is mounted on the switch board 100 .

[0021] The copper rod 30 has a fourth through hole 302 for hanging a safety lock to prevent misoperation.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An emergency stop device for electrical equipment in coal mines, characterized in that: include: An emergency stop seat (10), wherein the emergency stop seat (10) is fixed on the housing, one side of the emergency stop seat is the interior of the housing, and the other side of the emergency stop seat is the interior of the housing, and a first through hole (101) is provided in the middle of the emergency stop seat (10); An emergency stop rod (20), the emergency stop rod (20) being inserted into a first through hole (101) of the emergency stop seat (10) and being able to slide along the first through hole (101); when one end of the emergency stop rod (20) inside the housing slides to a limit, the contact of the touch switch (110) is pressed; a second through hole (201) is provided in the middle of the emergency stop rod (20); A copper rod (30), the copper rod (30) passing through the second through hole (201), the copper rod (30) being provided with a third through hole (301), the copper rod (30) being fixed to the emergency stop seat (10) through the third through hole (301) by means of a first fastener set (80).

2. The emergency stop device for electrical equipment in underground coal mines according to claim 1, characterized in that: The emergency stop rod (20) is sleeved with a copper sleeve (40), which is fixed to the emergency stop seat (10) by interference fit; the emergency stop rod (20) and the copper sleeve (40) form a first flameproof joint surface; the emergency stop rod (20) and the copper rod (30) form a second flameproof joint surface; the emergency stop rod slides on the first flameproof joint surface and the second flameproof surface.

3. The emergency stop device for electrical equipment in underground coal mines according to claim 1, characterized in that: The emergency stop seat (10) is provided with a first ball groove and a second ball groove; the emergency stop rod (20) is provided with two ball holes; the ball (60) is embedded in the ball hole of the emergency stop rod (20), and the ball (60) is pressed into the first ball groove or the second ball groove of the emergency stop seat (10) by a spring (50).

4. The emergency stop device for electrical equipment in underground coal mines according to claim 1, characterized in that: A button head (120) is installed at one end of the outer shell of the emergency stop rod (20), and the button head (120) is fixed to the emergency stop rod (20) via a third fastener set (70).

5. The emergency stop device for electrical equipment in underground coal mines according to claim 1, characterized in that: The switch (110) is arranged inside the housing, and the switch (110) is mounted on a switch plate (100), and the switch plate (100) is fixed to the housing via a second fastener set (90).

6. The emergency stop device for electrical equipment in underground coal mines according to claim 1, characterized in that: The copper rod (30) is provided with a fourth through hole (302) for hanging a safety lock to prevent misoperation.

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