CN210866086U

CN210866086U - Explosion-proof handle rotary operation mechanism

Info

Publication number: CN210866086U
Application number: CN201921859495.8U
Authority: CN
Inventors: 包俊义; 陈守永
Original assignee: Tianjin Longdian Electric Engineering Co ltd
Current assignee: Tianjin Longdian Electric Engineering Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-26
Anticipated expiration: 2029-10-31

Abstract

The utility model provides a flame-proof type handle rotating operation mechanism, which belongs to the field of flame-proof type explosion-proof electrical equipment and comprises a handle, a rotating part, a hollow area, a gland, a screw, a threaded pin, a shell, an upper fixing plate, a sealing nut, an elastic retainer ring, an O-shaped ring, a mechanism seat, a mechanism shaft and a shifting piece, the mechanism shaft and the mechanism seat are coaxially arranged from inside to outside, the mechanism seat is fixed on the shell, the elastic retainer ring and the O-shaped ring are clamped in the groove of the mechanism shaft, the threaded pin is in threaded connection with the upper part of the mechanism shaft, the rotating piece is placed in the groove of the mechanism seat, the hollow area is arranged in the rotating part, the handle is fixed on the rotating part, the upper fixing plate is fixed on the shell, the sealing nut is fixed inside the upper fixing plate, the gland is sleeved outside the rotating part, the screw penetrates through a mounting hole of the gland, and the shifting piece is fixed at the lowest end of the mechanism shaft. The utility model discloses rational in infrastructure, the manufacturing of being convenient for, convenient to use, safe and reliable.

Description

Explosion-proof handle rotary operation mechanism

Technical Field

The utility model belongs to explosion-proof electrical equipment field of flame-proof type relates to an use flame-proof type handle rotary operation mechanism on steel sheet welded forming casing.

Background

The explosion-proof type explosion-proof electrical equipment is electrical equipment with an explosion-proof shell, can bear the explosion pressure generated by the detonation of internal mixed gas, can prevent internal explosion flame and high-temperature gas from escaping out of an explosion-proof gap and igniting explosive mixtures around the shell, and has wide application in the field of industrial production.

At present, more and more electric device rotating operation mechanisms are used on explosion-proof electric equipment, and the explosion-proof electric equipment rotating operation mechanisms are mainly formed by combining an explosion-proof rotating operation mechanism and a common electric device, so that the requirements on explosion-proof performance and electric performance of the explosion-proof electric equipment are met. The requirements of the existing explosion-proof electrical equipment for use at lower environmental temperature are many, the material of the existing external operating mechanism of the explosion-proof shell is mostly engineering plastic, the requirements of the explosion-proof electrical equipment for use at lower environmental temperature cannot be met, the operation is not reliable enough, the appearance is not fine enough, and the diversified requirements of the explosion-proof electrical equipment cannot be met.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a flame proof type handle rotary operation mechanism is applicable to steel sheet welded forming explosion-proof electrical equipment, and is rational in infrastructure, the manufacturing of being convenient for, convenient to use, safe and reliable.

In order to solve the technical problem, the utility model discloses a technical scheme is: a flame-proof type handle rotation operating mechanism belongs to the field of flame-proof type explosion-proof electrical equipment and comprises a handle, a rotating part, a hollow area, a gland, a screw, a threaded pin, a shell, an upper fixing plate, a seal nut, an elastic retainer ring, an O-shaped ring, a mechanism seat, a mechanism shaft and a shifting piece, wherein the mechanism shaft and the mechanism seat are coaxially arranged from inside to outside, the mechanism shaft penetrates through the mechanism seat, the mechanism seat is fixed on the shell, the elastic retainer ring and the O-shaped ring are clamped in a groove of the mechanism shaft, the threaded pin is in threaded connection with the upper part of the mechanism shaft, the rotating part is placed in the groove of the mechanism seat, the lower end of the rotating part is provided with a circular bead, the hollow area is arranged inside the rotating part, the handle is fixed on the rotating part, the upper fixing plate is fixed on the shell, the seal nut is fixed inside the upper fixing plate, the gland is sleeved outside the rotating part, the shifting piece is fixed at the lowest end of the mechanism shaft.

Furthermore, the upper fixing plate and the mechanism seat are welded on the shell.

Further, the threaded pin is in threaded connection with the mechanism shaft, the threaded pin is an external thread, and the mechanism shaft is an internal thread.

Furthermore, the shape of the hollow area is an elliptic cylinder, the length of the long axis of the elliptic cylinder is greater than that of the threaded pin, and the length of the short axis of the elliptic cylinder is less than that of the threaded pin.

Furthermore, the elastic check ring is arranged above the O-shaped ring, the elastic check ring protrudes out of the side surface of the mechanism shaft, and the O-shaped ring is flush with the side surface of the mechanism shaft.

Further, handle threaded connection is on the rotating member, and the handle is the internal thread, and the rotating member is the external screw thread, and the contained angle between handle and the horizontal plane is less than 45, and the handle is perpendicular with the handle installation face on the rotating member.

Furthermore, the plectrum welding is at the mechanism axle lowermost end and with mechanism axle coaxial arrangement.

Compared with the prior art, the utility model has the advantages and positive effect as follows:

1. the utility model discloses can select the ordinary moulded case circuit breaker of more brands model, but the ordinary electrical part of direct replacement satisfies the requirement that explosion-proof electrical equipment of flame proof type used in lower ambient temperature, rational in infrastructure, the manufacturing of being convenient for, convenient to use, safe and reliable.

2. The utility model discloses an upper fixed plate and mechanism seat welding are on the casing, and the plectrum welding is at the mechanism axle bottom, adopts the fixed intensity of having guaranteed the structure of welding mode in a large number, and the structure can not split when receiving the impact of explosion.

3. The utility model discloses a circlip has prevented that the mechanism axle from taking off, and O type circle plays dustproof and waterproof effect.

4. The utility model discloses a screw pin threaded connection is epaxial at the mechanism, and handle threaded connection is on the rotating member, and threaded connection simple structure connects reliably.

5. The utility model discloses a mechanism seat, an upper fixed plate, casing, gland and rotating member adopt the section bar to make, simple structure, and it is convenient to make, and maintenance is convenient.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a flame-proof type handle rotation operating mechanism of the present invention;

FIG. 2 is the utility model discloses a flame-proof type handle rotary operating mechanism's screw pin and regional relative position top view of cavity.

Reference numerals:

1. a handle; 2. a rotating member; 3. a gland; 4. a screw; 5. a threaded pin; 6. a housing; 7. an upper fixing plate; 8. a circlip; 9. an O-shaped ring; 10. a mechanism seat; 11. a mechanism shaft; 12. a shifting sheet; 13. a shoulder; 14. a hollow region; 71. and closing the nut.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figures 1 and 2, the utility model relates to a flame-proof type handle rotary operating mechanism, which belongs to the field of flame-proof type explosion-proof electrical equipment, and comprises a handle 1, a rotating member 2, a hollow area 14, a gland 3, a screw 4, a thread pin 5, a shell 6, an upper fixed plate 7, a seal nut 71, an elastic retainer ring 8, an O-shaped ring 9, a mechanism seat 10, a mechanism shaft 11 and a shifting piece 12, wherein the mechanism shaft 11 and the mechanism seat 10 are coaxially arranged from inside to outside, the mechanism shaft 11 passes through the mechanism seat 10, the mechanism seat 10 is fixed on the shell 6, the elastic retainer ring 8 and the O-shaped ring 9 are clamped in a groove of the mechanism shaft 11, the thread pin 5 is in the upper part of the mechanism shaft 11, the rotating member 2 is placed in the groove of the mechanism seat 10, a shoulder 13 is arranged at the lower end of the rotating member 2, the hollow area 14 is in the rotating member 2, the handle 1 is fixed, the closed nut 71 is fixed inside the upper fixing plate 7, the gland 3 is sleeved outside the rotating part 2, the screw 4 penetrates through the mounting hole of the gland 3 to be in threaded connection with the closed nut 71, and the shifting piece 12 is fixed at the lowest end of the mechanism shaft 11.

Preferably, the lower end shoulder 13 of the rotating member 2 is fixed by the gland 3, a gap is left between the rotating member 2 and the gland 3 in the vertical direction and the circumferential direction, so that the smoothness of the mechanism seat 10 in rotation is ensured, the upper limit position and the lower limit position of the rotating member 2 are limited, the outer ring of the rotating member 2 is in clearance fit with the inner ring of the mechanism seat 10, the mechanism seat 10 limits the displacement precision of the rotating member 2 in the circumferential direction, the outer ring of the mechanism seat 10 is in clearance fit with the inner ring of the shell 6, and the shell 6 limits the upward displacement space of the mechanism seat 10.

Preferably, the upper fixing plate 7 and the mechanism seat 10 are welded on the shell 6, the shifting piece 12 is welded at the lowest end of the mechanism shaft 11 and is arranged coaxially with the mechanism shaft 11, the strength of the structure is ensured by adopting a welding mode, and the structure cannot be broken when being impacted by explosion.

Preferably, the hollow area 14 is in the shape of an elliptic cylinder, the length of the major axis of the elliptic cylinder is greater than that of the threaded pin 5, the length of the minor axis of the elliptic cylinder is less than that of the threaded pin 5, and when the handle 1 rotates, the threaded pin 5 contacts with the edge of the hollow area 14 inside the rotating member 2 to drive the mechanism shaft 11 to rotate.

Preferably, the elastic retainer ring 8 is arranged above the O-shaped ring 9, the elastic retainer ring 8 protrudes out of the side surface of the mechanism shaft 11, the mechanism shaft 11 is prevented from being loosened, the O-shaped ring 9 is preferably flush with the side surface of the mechanism shaft 11, and the O-shaped ring 9 plays a role in dust and water prevention.

Preferably, threaded pin 5 threaded connection is on mechanism axle 11, and threaded pin 5 is the external screw thread, and mechanism axle 11 is the internal screw thread, and preferably, handle 1 threaded connection is on revolving part 2, and handle 1 is the internal screw thread, and revolving part 2 is the external screw thread, and threaded connection simple structure connects reliably, and preferably, the contained angle between handle 1 and the horizontal plane is less than 45, and handle 1 is perpendicular with the handle 1 installation face on the revolving part 2, makes the operation more convenient.

Preferably, the mechanism seat 10, the upper fixing plate 7, the shell 6, the gland 3 and the rotating member 2 are made of profiles, and the mechanism seat is simple in structure, convenient to manufacture and convenient to maintain.

In the actual working process, an O-shaped ring 9 is fixed in a groove at one end of a mechanism shaft 11 close to a plectrum 12, a circlip 8 is fixed in a groove above the O-shaped ring 9, a threaded pin 5 is in threaded connection with the mechanism shaft 11, the mechanism shaft 11 penetrates through a mechanism seat 10, the mechanism seat 10 is welded on a shell 6, an upper fixing plate 7 is welded on the shell 6 at two sides of the mechanism seat 10, a sealing nut 71 is fixed in the upper fixing plate 7, a rotating piece 2 is placed in the groove of the mechanism seat 10, the threaded pin 5 is in the long axis direction of a hollow area 14, a cover plate compresses the shoulder 13 part of the rotating piece 2, a screw 4 penetrates through a mounting hole of a gland 3 to be in threaded connection with the sealing nut 71, a handle 1 is in threaded connection with the rotating piece 2, the plectrum 12 is welded at the lowest end of the mechanism shaft 11, the plectrum, the mechanism shaft 11 and the paddle 12 rotate. When the explosion takes place, the utility model discloses can bear the explosive pressure that inside mixability gas is detonated and is produced, can prevent again that inside explosion flame and high-temperature gas from scurrying the explosive mixture around the shell after the flame proof clearance, provide the guarantee for safety in production.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a flame-proof type handle rotary operation mechanism which characterized in that: comprises a handle (1), a rotating part (2), a hollow area (14), a gland (3), a screw (4), a threaded pin (5), a shell (6), an upper fixing plate (7), a gland nut (71), a circlip (8), an O-shaped ring (9), a mechanism seat (10), a mechanism shaft (11) and a shifting sheet (12), wherein the mechanism shaft (11) and the mechanism seat (10) are coaxially arranged from inside to outside, the mechanism shaft (11) penetrates through the mechanism seat (10), the mechanism seat (10) is fixed on the shell (6), the circlip (8) and the O-shaped ring (9) are clamped in a groove of the mechanism shaft (11), the threaded pin (5) is in threaded connection with the upper part of the mechanism shaft (11), the rotating part (2) is placed in the groove of the mechanism seat (10), a shoulder (13) is arranged at the lower end of the rotating part (2), and the hollow area (14) is arranged inside the rotating part (2), the handle (1) is fixed on the rotating part (2), the upper fixing plate (7) is fixed on the shell (6), the sealing nut (71) is fixed inside the upper fixing plate (7), the gland (3) is sleeved outside the rotating part (2), the screw (4) penetrates through a mounting hole of the gland (3) to be in threaded connection with the sealing nut (71), and the shifting piece (12) is fixed at the lowest end of the mechanism shaft (11).

2. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the mechanism shaft (11) is divided into three sections, and the diameters of the three sections are sequentially increased from top to bottom.

3. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the upper fixing plate (7) and the mechanism seat (10) are welded on the shell (6).

4. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the thread pin (5) is in threaded connection with the mechanism shaft (11), the thread pin (5) is an external thread, and the mechanism shaft (11) is an internal thread.

5. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the hollow area (14) is in the shape of an elliptic cylinder, the length of the long axis of the elliptic cylinder is greater than that of the threaded pin (5), and the length of the short axis of the elliptic cylinder is less than that of the threaded pin (5).

6. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the elastic retainer ring (8) is arranged above the O-shaped ring (9), the elastic retainer ring (8) protrudes out of the side surface of the mechanism shaft (11), and the O-shaped ring (9) is flush with the side surface of the mechanism shaft (11).

7. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: handle (1) threaded connection is on rotating member (2), and handle (1) is the internal thread, and rotating member (2) are the external screw thread, and the contained angle between handle (1) and the horizontal plane is less than 45, and handle (1) is perpendicular with handle (1) installation face on rotating member (2).

8. The explosion-proof handle rotary operating mechanism according to claim 1, characterized in that: the plectrum (12) is welded at the lowest end of the mechanism shaft (11) and is coaxially arranged with the mechanism shaft (11).