Cabinet door switch handle of anti-explosion and anti-corrosion control cabinet

Abstract

The utility model discloses a cabinet door switch handle of an anti-explosion and anti-corrosion control cabinet, which comprises a base installed and fixed on a cabinet door, a switch handle is rotatably installed on the base, a slot penetrating outwards is arranged on the switch handle, an indication block is arranged in the slot in a matched and inserted mode, and the indication block is connected with the switch handle. The indicating block is formed by connecting an arrow-shaped indicating portion and a pressing portion, the pressing portion comprises a connecting sleeve extending into the inserting groove, the outer end of the connecting sleeve is closed and connected with the indicating portion into a whole, a positioning rod is arranged in the connecting sleeve, and the outer end of the positioning rod is connected with the outer end of the connecting sleeve into a whole. According to the utility model, the indication block is arranged on the switch handle, so that the switch handle not only can be used for indicating an opening state and a closing state, but also can be used for locking the switch handle after the switch handle is closed; therefore, random opening of the cabinet door caused by mistaken touch of the switch handle due to non-operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof and anti-corrosion control equipment, in particular to a cabinet door switch handle of an explosion-proof and anti-corrosion control cabinet. Background Art

[0002] At present, the cabinet door of explosion-proof and anti-corrosion control cabinets is generally provided with a switch handle, which is turned to open or close the cabinet door. At the same time, to indicate whether the switch handle is open or closed, an indicator arrow is usually attached to the switch handle. However, in actual application, the attached indicator arrow is easy to loosen and fall off. In addition, there is a risk that the switch handle on the cabinet door may be accidentally opened due to non-operational needs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a cabinet door switch handle for an explosion-proof and corrosion-resistant control cabinet. By arranging an indicator block on the switch handle, it not only indicates the open and closed states, but also locks the switch handle after closing, so as to prevent the cabinet door from being opened at will due to accidental touching of the switch handle for non-operational purposes.

[0004] To achieve the above-mentioned purpose, the utility model provides a cabinet door switch handle for an explosion-proof and corrosion-resistant control cabinet, comprising a base mounted and fixed on the cabinet door, a switch handle being rotatably mounted on the base, a slot penetrating outwardly being provided on the switch handle, an indicator block being adapted and plugged in the slot, the indicator block being composed of an arrow-shaped indicator portion and a pressing portion connected to each other, the pressing portion comprising a connecting sleeve extending into the slot, the outer end of the connecting sleeve being closed and connected to the indicator portion as a whole, a positioning rod being provided in the connecting sleeve, the outer end of the positioning rod being connected to the outer end of the connecting sleeve as a whole, and the inner end of the positioning sleeve extending into the slot The base is provided with a locking hole which is plugged in with the positioning rod, and when the positioning rod is pressed, it is plugged in with the locking hole. A compression spring is provided between the pressing portion and the slot to prompt the indicating block to pop out and cause the positioning rod to escape from the locking hole. When the positioning rod is plugged in with the locking hole, the indicating block will limit the rotation of the switch handle on the base. When the positioning rod escapes from the locking hole, the indicating block will lose the restriction on the rotation of the switch handle. A limiting structure is provided in the switch handle to lock the positioning rod when the positioning rod is plugged in with the locking hole.

[0005] The utility model can be further configured such that the limiting structure includes a ball head limiting block and a limiting spring, and a cavity for accommodating the ball head limiting block and the limiting spring is correspondingly provided at the bottom of the slot, and the two ends of the limiting spring are respectively abutted against the bottom surface of the cavity and the ball head limiting block, and prompt the ball head of the ball head limiting block to extend out of the cavity, and a groove is correspondingly provided on the positioning rod for the ball head on the ball head limiting block to be embedded.

[0006] The utility model can be further configured such that the compression spring is sleeved on the positioning rod, and the two ends of the compression spring are respectively abutted against the outer end of the connecting sleeve and the bottom of the slot, an anti-slip structure is provided between the connecting sleeve and the slot to prevent the connecting sleeve from slipping out of the slot, a radially protruding convex ring is provided at the inner end of the connecting sleeve, and an anti-slip ring is provided on the outer side of the convex ring corresponding to the slot, and the convex ring and the anti-slip ring are abutted and limited to form the anti-slip structure.

[0007] The utility model can be further configured such that a rotating shaft is installed on the base from the inside to the outside and forms an axial limit with the switch handle, a first sealing ring and a second sealing ring are arranged around the rotating shaft between the base and the cabinet door, and a plurality of screws are installed on the cabinet door from the inside to the outside and form a fixation with the base, and the plurality of screws are located between the first sealing ring and the second sealing ring. This configuration not only has good sealing performance, but also can effectively prevent the screws from being exposed by installing and fixing the base and the switch handle from the inside of the cabinet door, and makes the external structure flat and beautiful without any installation traces.

[0008] The beneficial effect of the utility model is that when the scheme of the utility model is adopted, when the indicating block is pressed, the indicating block overcomes the action force of the compression spring and moves into the slot, and the positioning rod and the locking hole on the base form a plug-in fit. At the same time, the ball head of the ball head limit block is embedded in the groove on the positioning rod under the action of the limit spring to form a positioning for the positioning rod, so that the indicating block and the base are positioned, and because the indicating block is plug-in-fitted with the slot on the switch handle, the switch handle is also positioned. At this time, the switch handle cannot rotate relative to the base, that is, the switch handle is locked to avoid the cabinet door being opened at will due to accidental touching of the switch handle without operation requirements. When the switch handle needs to be turned to open the cabinet door, the indicator block is pressed downward. As the positioning rod moves downward, the ball head on the ball head limit block is disengaged from the groove of the positioning rod. Then, the pressure on the indicator block is released, so that the indicator block is instantly bounced up by the action of the compression spring until the convex ring on the connecting sleeve is in abutment with the anti-slip ring. At this time, the positioning rod is disengaged from the locking hole of the base. In this way, the indicator block will not limit the rotation of the switch handle, and the cabinet door can be opened by turning the switch handle. After the cabinet door is closed again, when it is necessary to limit the rotation of the switch handle, the indicator block is pressed again to lock the switch handle again. In summary, the utility model not only plays the role of indicating the open and closed states by arranging the indicator block on the switch handle, but also can lock the switch handle after closing, so as to avoid the cabinet door being opened at will due to accidental touching of the switch handle for non-operational purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a cross-sectional view after the indicator block is pressed;

[0010] Figure 2 It is a cross-sectional view after the indicator block pops outward;

[0011] Figure 3 is a three-dimensional image after the indicator block is pressed;

[0012] Figure 4 It is a three-dimensional image after the indicator block pops out;

[0013] Figure 5 for Figure 2 Enlarged view of part A. DETAILED DESCRIPTION

[0014] like Figure 1-5 The figure shows a cabinet door switch handle of an explosion-proof and corrosion-resistant control cabinet, comprising a base 2 fixedly mounted on a cabinet door 1, a switch handle 3 rotatably mounted on the base 2, a slot 31 penetrating outwardly provided on the switch handle 3, an indicator block 4 adapted to be plugged in the slot 31, the indicator block 4 is composed of an arrow-shaped indicator portion 41 and a pressing portion connected, the pressing portion comprising a connecting sleeve 42 extending into the slot 31, the outer end of the connecting sleeve 42 is closed and connected to the indicator portion 41 as a whole, a positioning rod 43 is provided in the connecting sleeve 42, the outer end of the positioning rod 43 is connected to the outer end of the connecting sleeve 42 as a whole, the inner end of the positioning sleeve 42 extends into the slot 31 and passes through the slot 31, A locking hole 21 that is plugged in with the positioning rod 43 is correspondingly provided on the base 2, and when the positioning rod 21 is pressed, it is plugged in with the locking hole 21. A compression spring 5 is provided between the pressing portion and the slot 31 for causing the indicator block 4 to pop out and cause the positioning rod 43 to escape from the locking hole 21. When the positioning rod 43 is plugged in with the locking hole 21, the indicator block 4 will limit the rotation of the switch handle 3 on the base 2; when the positioning rod 43 escapes from the locking hole 21, the indicator block 4 will lose the restriction on the rotation of the switch handle 3, and a limiting structure for locking the positioning rod 43 when the positioning rod 43 is plugged in with the locking hole 21 is provided in the switch handle 3.

[0015] The limiting structure includes a ball head limiting block 6 and a limiting spring 7. A cavity for accommodating the ball head limiting block 6 and the limiting spring 7 is correspondingly provided at the bottom of the slot 31. The two ends of the limiting spring 7 are respectively abutted against the bottom surface of the cavity and the ball head limiting block 6, and the ball head of the ball head limiting block 6 is prompted to extend out of the cavity. A groove 44 is correspondingly provided on the positioning rod 43 for the ball head on the ball head limiting block 6 to be embedded.

[0016] The compression spring 5 is sleeved on the positioning rod 43, and the two ends of the compression spring 5 are respectively abutted against the outer end of the connecting sleeve 42 and the bottom of the slot 31, and an anti-slip structure is arranged between the connecting sleeve 42 and the slot 31 to prevent the connecting sleeve 42 from slipping out of the slot 31. The inner end of the connecting sleeve 42 is provided with a radially protruding convex ring 45, and the slot 31 is correspondingly provided with an anti-slip ring 46 on the outer side of the convex ring 45, and the convex ring 45 and the anti-slip ring 46 are abutted and limited to form the anti-slip structure.

[0017] A rotating shaft 8 is installed on the base 2 from the inside to the outside, which forms an axial limit with the switch handle 3. A first sealing ring 9 and a second sealing ring 10 are arranged around the rotating shaft between the base 2 and the cabinet door 1. A plurality of screws 11 are installed on the cabinet door 1 from the inside to the outside, which are fixed with the base 2, and the plurality of screws 11 are located between the first sealing ring 9 and the second sealing ring 10. This arrangement not only has good sealing performance, but also can effectively prevent the screws 11 from being exposed by installing and fixing the base 2 and the switch handle 3 from the inside of the cabinet door 1, and makes the external structure flat and beautiful without any installation traces.

[0018] By adopting the solution of the utility model, when the indicating block 4 is pressed, the indicating block 4 overcomes the force of the compression spring 5 and moves into the slot 31, and the positioning rod 43 is plugged into the locking hole 21 on the base 2. At the same time, the ball head of the ball head limit block 6 is embedded in the groove 44 on the positioning rod 43 under the action of the limit spring 7 to form a positioning for the positioning rod 43, so that the indicating block 4 and the base 2 are positioned. Since the indicating block 4 is plugged into and matched with the slot 31 on the switch handle 3, the switch handle 3 is also positioned. At this time, the switch handle 3 cannot rotate relative to the base 2, that is, the switch handle 3 is locked to avoid the cabinet door 1 being opened at will due to accidental touching of the switch handle 3 without operation requirements. When the switch handle 3 needs to be turned to open the cabinet door 1, the indicator block 4 is pressed downward, and as the positioning rod 43 moves downward, the ball head on the ball head limit block 6 is disengaged from the groove 44 of the positioning rod 43, and then the pressure on the indicator block 4 is released, so that the indicator block 4 is instantly bounced up under the action of the compression spring 5 until the convex ring 45 on the connecting sleeve 42 is abutted against the anti-slip ring 46, and the positioning rod 43 is disengaged from the locking hole 21 of the base 2, so that the indicator block 4 will not limit the rotation of the switch handle 3, and the cabinet door 1 can be opened by turning the switch handle 3. After the cabinet door 1 is closed again, when it is necessary to limit the rotation of the switch handle 3, the indicator block 4 is pressed again to achieve the re-locking of the switch handle 3. In summary, the utility model, by arranging the indicator block 4 on the switch handle 3, not only plays the role of indicating the open and closed states, but also can lock the switch handle 3 after closing, so as to avoid the cabinet door being opened at will due to the switch handle being touched by mistake without operation needs.

Claims

1. A cabinet door switch handle for an explosion-proof and corrosion-resistant control cabinet, comprising a base mounted and fixed on the cabinet door, on which a switch handle is rotatably mounted, characterized in that: The switch handle is provided with a slot extending outward, and an indicator block is adapted to be plugged in the slot. The indicator block is composed of an arrow-shaped indicator part and a pressing part connected to each other. The pressing part includes a connecting sleeve extending into the slot, and the outer end of the connecting sleeve is closed and connected to the indicating part as a whole. A positioning rod is provided in the connecting sleeve, and the outer end of the positioning rod is connected to the outer end of the connecting sleeve as a whole. The inner end of the positioning sleeve extends into the slot and passes through the slot. A locking hole that is plugged in with the positioning rod is correspondingly provided on the base, and when the positioning rod is pressed, it is plugged in with the locking hole. A compression spring is provided between the pressing part and the slot to prompt the indicator block to pop out and make the positioning rod disengage from the locking hole. When the positioning rod is plugged in with the locking hole, the indicator block will limit the rotation of the switch handle on the base; when the positioning rod is disengaged from the locking hole, the indicator block will lose the restriction on the rotation of the switch handle. A limiting structure for locking the positioning rod when the positioning rod is plugged in with the locking hole is provided in the switch handle.

2. The door switch handle of an explosion-proof and corrosion-resistant control cabinet according to claim 1, characterized in that: The limiting structure includes a ball head limiting block and a limiting spring. A cavity for accommodating the ball head limiting block and the limiting spring is correspondingly provided at the bottom of the slot. The two ends of the limiting spring are respectively abutted against the bottom surface of the cavity and the ball head limiting block, and prompt the ball head of the ball head limiting block to extend out of the cavity. A groove is correspondingly provided on the positioning rod for the ball head on the ball head limiting block to be embedded.

3. The door switch handle of an explosion-proof and corrosion-resistant control cabinet according to claim 1 or 2, characterized in that: The compression spring is sleeved on the positioning rod, and the two ends of the compression spring are respectively abutted against the outer end of the connecting sleeve and the bottom of the slot, an anti-slip structure is arranged between the connecting sleeve and the slot to prevent the connecting sleeve from slipping out of the slot, a radially protruding convex ring is arranged at the inner end of the connecting sleeve, and an anti-slip ring is arranged on the outer side of the convex ring corresponding to the slot, and the convex ring and the anti-slip ring are abutted and limited to form the anti-slip structure.

4. The door switch handle of an explosion-proof and corrosion-resistant control cabinet according to claim 1 or 2, characterized in that: A rotating shaft is installed on the base from the inside to the outside and forms an axial limit with the switch handle. A first sealing ring and a second sealing ring are arranged around the rotating shaft between the base and the cabinet door. A plurality of screws are installed on the cabinet door from the inside to the outside and are fixed with the base, and the plurality of screws are all located between the first sealing ring and the second sealing ring.

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