CN216487607U - Pressure monitoring type explosion-proof expander - Google Patents

Abstract

The utility model discloses a pressure monitoring type explosion-proof expander, which comprises an expander main body, wherein a chassis is arranged at the lower end of the expander main body, a shell is arranged on the outer side of the chassis, an observation hole is formed in the right part of the side wall of the shell, a sealing ring is arranged in the observation hole, an observation window is arranged on the inner side of the sealing ring, a scale sticker is arranged on the outer side wall of the observation window, a top cover is arranged at the upper end of the shell, an alarm and a storage battery are respectively arranged at the front and back of the lower end of the top cover, the alarm is electrically connected with the anode of the storage battery through a lead, support rods are symmetrically arranged at the front and back of the upper end of the expander main body, a sector plate is arranged between the right ends of the support rods, an indicating head is arranged at the right end of the sector plate, barrier strips are symmetrically arranged on the left and right surfaces of the sector plate, and arc-shaped conducting strips are arranged in the middle parts of the upper and lower surfaces of the sector plate, the utility model can send out an alarm when the temperature is abnormal so as to prompt a worker to process in time.

Description

Pressure monitoring type explosion-proof expander

Technical Field

The utility model relates to the technical field of metal expanders, in particular to a pressure monitoring type explosion-proof expander.

Background

The metal expander is a container with variable volume, in the sealed oil immersed mutual inductor and capacitor of circle, change of volume takes place for compensating transformer oil because of temperature variation, when the mutual inductor normally operates, can keep internal pressure basically unchangeable, it plays the effect of protection to various oil immersed mutual inductors and capacitors, can make the inside transformer oil of product isolated with the outside air, prevent that transformer oil from weing, ageing, rotten, if the high temperature can lead to the inside pressure grow of metal expander, the low temperature can lead to metal expander internal pressure to diminish, all can influence the normal use of metal expander, also can have the risk of explosion when the high temperature.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a pressure monitoring type explosion-proof expander to solve the above problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a pressure monitoring type explosion-proof expander comprises an expander main body, wherein a chassis is arranged at the lower end of the expander main body, a shell is arranged on the outer side of the chassis, an observation hole is formed in the right part of the side wall of the shell, a sealing ring is arranged in the observation hole, an observation window is arranged on the inner side of the sealing ring, a scale sticker is arranged on the outer side wall of the observation window, a top cover is arranged at the upper end of the shell, an alarm and a storage battery are respectively arranged on the front and back of the lower end of the top cover, the alarm is electrically connected with the anode of the storage battery through a lead, support rods are symmetrically arranged on the front and back of the upper end of the expander main body, a fan-shaped plate is arranged between the right ends of the support rods, an indicator head is arranged at the right end of the fan-shaped plate, barrier strips are symmetrically arranged on the left and right sides of the upper surface and the lower surface of the fan-shaped plate, arc-shaped conductive sheets are arranged in the middle parts of the upper surface and the lower surface of the fan-shaped plate, and the front and back two ends of the arc-shaped conductive sheets are respectively provided with conductive spring sheets, the utility model discloses a portable electronic device, including casing, arc conducting strip, first supporting seat, second supporting seat, conducting strip, the symmetry is equipped with first supporting seat around the inside wall upper portion of casing, the symmetry is equipped with the second supporting seat around the inboard lower part of casing, first supporting seat with the position of second supporting seat with conducting strip keeps away from the one end of arc conducting strip corresponds from top to bottom, the lower extreme of first supporting seat with the upper end of second supporting seat all is equipped with electrically conductive seat, it is relative from top to bottom electrically connect through the wire between the electrically conductive seat, the back top electrically conductive seat with connect through the wire electricity between the negative pole of battery, the front top electrically conductive seat with connect through the wire electricity between the siren.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides an explosion-proof expander of pressure monitoring formula, through two electrically conductive shell fragments that together reciprocate along with the expander main part mutually support with the electrically conductive seat that corresponds around with, when the high temperature of oil or cross low when reaching the trigger critical value, electrically conductive shell fragment can contact with two electrically conductive seats around with, switch on siren and battery, make the siren send out the police dispatch newspaper sound, with the temperature anomaly of suggestion staff oil, so that the staff in time handles, avoid the high temperature or cross low accident that leads to corresponding, when the temperature is normal, the siren only is connected with the positive pole of battery, can not work.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure according to the present invention.

Fig. 2 is a schematic top sectional view of the present invention.

Fig. 3 is a schematic structural view of the conductive elastic sheet of the present invention.

In the figure: 1. an expander body; 2. a chassis; 3. a housing; 4. a seal ring; 5. an observation window; 6. a top cover; 7. an alarm; 8. a storage battery; 9. a support bar; 10. a sector plate; 11. an indicator head; 12. blocking strips; 13. an arc-shaped conducting plate; 14. a conductive spring plate; 15. a first support base; 16. a second support seat; 17. a conductive seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a pressure monitoring type explosion-proof expander comprises an expander main body 1, wherein a chassis 2 is arranged at the lower end of the expander main body 1, a threaded rod matched with the expander main body 1 is formed on the chassis 2 and penetrates into a round hole in the expander main body 1, the expander main body 1 is fixed on the chassis 2 through a nut, through holes for being installed outside and for oil to pass through are respectively formed in the chassis 2, a shell 3 is arranged on the outer side of the chassis 2, the shell 3 is a cylinder which is communicated up and down and is fixed on the chassis 2 through a bolt, an observation hole is formed in the right part of the side wall of the shell 3, a sealing ring 4 is arranged in the observation hole, an observation window 5 is arranged on the inner side of the sealing ring 4, a scale sticker is arranged on the outer side wall of the observation window 5, the observation hole penetrates through the shell 3, the observation window 5 is embedded into the observation hole, and the sealing ring 4 wraps the edges of a main observation hole and the observation window 5, the inspection window 5 is fixed on the shell 3, the sealing performance is ensured, the scale paste is pasted on the inspection window 5, the inspection window 5 is transparent, so that a worker can observe the inner expander main body 1 from the outer side of the device, the position of the scale paste corresponding to the indicating head 11 displays the oil temperature condition, the upper end of the shell 3 is provided with a top cover 6, the top cover 6 is fixed on the shell 3 through bolts, the front part and the rear part of the lower end of the top cover 6 are respectively provided with an alarm 7 and a storage battery 8, the alarm 7 is electrically connected with the anode of the storage battery 8 through a lead, the alarm 7 and the storage battery 8 are fixed on the top cover 6, the charging wire part of the storage battery 8 penetrates through the top cover 6 to be connected with external power supply equipment, the penetrating part is sealed, the lead in the device is pasted on the inner side wall of the shell 3 through an adhesive tape or a buckle, and the lead scattering is prevented from influencing the expansion of the expander main body 1, the direct connection wire between the positive pole 8 of the storage battery and the alarm 7 does not form a loop, the alarm 7 does not work directly to make a sound, after the loop is formed between the alarm 7 and the storage battery 8 and under the condition that the storage battery 8 has electric power, the alarm 7 can make an alarm prompt sound to indicate that the temperature of the oil is too high or too low at the moment, the upper end of the expander main body 1 is symmetrically provided with supporting rods 9 in front and back, a sector plate 10 is arranged between the right ends of the supporting rods 9, the right end of the sector plate 10 is provided with an indicator head 11, the two supporting rods 9 are fixed on the expander main body 1, the sector plate 10 is fixed on the supporting rods 9, the indicator head 11 is fixed on the sector block, the supporting rods 9, the sector plate 10 and the indicator head 11 can move up and down along with the expansion and contraction of the expander main body 1, and the position of the indicator head 11 is compared with the position of the scale paste to obtain the temperature condition of the oil, the upper surface and the lower surface of the sector plate 10 are respectively provided with barrier strips 12 in bilateral symmetry, four barrier strips 12 are fixed on the sector plate 10 and used for protecting arc-shaped conducting strips 13, the middle parts of the upper surface and the lower surface of the sector plate 10 are provided with arc-shaped conducting strips 13, the arc-shaped conducting strips 13 are fixed between the barrier strips 12 of the sector plate 10 and have electrical conductivity, the sector plate 10 is insulated, the front end and the rear end of each arc-shaped conducting strip 13 are respectively provided with a conductive elastic sheet 14, the conductive elastic sheets 14 have electrical conductivity, one end of each conductive elastic sheet 14 is fixed on the arc-shaped conducting strip 13, the other end of each conductive elastic sheet 14 is suspended and has elasticity, the conductive elastic sheets 14 can recover after being bent, the conductive elastic sheets 14 are convenient to be contacted with conductive seats 17, the upper part and the rear part of the inner side wall of the shell 3 are respectively and symmetrically provided with first supporting seats 15, the rear part and the rear part of the lower part of the inner side of the shell 3 are respectively and provided with second supporting seats 16, the positions corresponding to the end, far away from the arc-shaped conducting elastic sheets 14, the lower end of the first supporting seat 15 and the upper end of the second supporting seat 16 are both provided with a conductive seat 17, the first supporting seat 15 and the second supporting seat 16 are fixed on the shell 3, the positions of the first supporting seat 15 and the second supporting seat 16 correspond to the suspended end of the conductive elastic sheet 14 up and down, the conductive seats 17 are fixed on the supporting seats, and have conductivity, when the temperature of the oil is too high, the expander main body 1 expands, the supporting rod 9 and the fan-shaped plate 10 move upwards, the two conductive elastic sheets 14 on the upper side can contact the two conductive seats 17 on the upper side, meanwhile, the arc-shaped conductive sheet 13 connects the two conductive elastic sheets 14, so that the two conductive seats 17 on the upper side are connected, when the temperature of the oil is too low, the expander main body 1 contracts, the supporting rod 9 and the fan-shaped plate 10 move downwards, the two conductive elastic sheets 14 on the lower side can contact the two conductive seats 17 on the lower side, and simultaneously, the arc-shaped conductive elastic sheets 13 connect the two conductive elastic sheets 14, therefore, the two lower conductive seats 17 are connected, the vertically opposite conductive seats 17 are electrically connected through a lead, the conductive seat 17 at the upper rear side is electrically connected with the negative electrode of the storage battery 8 through a lead, the conductive seat 17 at the upper front side is electrically connected with the alarm 7 through a lead, the two rear conductive seats 17 are connected with the negative electrode of the storage battery 8 through a lead connection mode, the two front conductive seats 17 are connected with the alarm 7, and the conductive elastic sheet 14 and the arc-shaped conductive sheet 13 can connect the front and rear corresponding conductive seats 17, so that a loop is formed between the storage battery 8 and the alarm 7, and the alarm 7 is enabled to work to give an alarm sound.

The working principle is as follows: after the device is connected with external equipment, the expander main body 1 can expand or contract along with the temperature of transformer oil, so that the positions of the fan-shaped plate 10 and the indicating head 11 move up and down, the indicating head 11 in the shell 3 is directly observed on the outer side of the observation window 5, the position of the indicating head 11 corresponds to the position of the scale sticker, so that the temperature condition of the oil is obtained, when the temperature of the oil is overhigh, the expander main body 1 expands, the support rod 9 and the fan-shaped plate 10 move upwards, the two conductive elastic sheets 14 on the upper side can contact the two conductive seats 17 on the upper side, the two conductive elastic sheets 14 are connected by the arc-shaped conductive sheets 13, so that the two conductive seats 17 on the upper side are connected, the front conductive seat 17 and the rear conductive seat 17 are respectively and electrically connected with the alarm 7 and the storage battery 8, a loop is formed between the alarm 7 and the storage battery 8, the alarm 7 starts to work and give an alarm, when the temperature of oil is too low, expander main part 1 contracts, and bracing piece 9 and sector plate 10 move down, and two electrically conductive shell fragment 14 of downside can contact two electrically conductive seats 17 of downside, with putting through between two electrically conductive seats 17 of downside, for siren 7 and battery 8 switch-on, siren 7 begins work and sends out the police dispatch newspaper sound, shows the temperature anomaly promptly when siren 7 takes place, and the suggestion staff in time handles, avoids corresponding occurence of failure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. A pressure monitoring type explosion-proof expander comprises an expander main body (1), and is characterized in that: the lower extreme of inflation ware main part (1) is equipped with chassis (2), the outside on chassis (2) is equipped with casing (3), the observation hole has been seted up to the lateral wall right part of casing (3), be equipped with sealing washer (4) in the observation hole, the inboard of sealing washer (4) is equipped with observation window (5), the lateral wall of observation window (5) is equipped with the scale and pastes, the upper end of casing (3) is equipped with top cap (6), be equipped with siren (7) and battery (8) around the lower extreme of top cap (6) respectively, siren (7) with connect through the wire electricity between the positive pole of battery (8), the symmetry is equipped with bracing piece (9) around the upper end of inflation ware main part (1), be equipped with sector plate (10) between the right-hand member of bracing piece (9), the right-hand member of sector plate (10) is equipped with indicator (11), the upper surface and the lower surface of the sector plate (10) are respectively provided with a barrier strip (12) in bilateral symmetry, the middle parts of the upper surface and the lower surface of the sector plate (10) are respectively provided with an arc-shaped conducting strip (13), the front end and the rear end of the arc-shaped conducting strip (13) are respectively provided with a conductive elastic sheet (14), the front part and the rear part of the upper part of the inner side wall of the shell (3) are respectively provided with a first supporting seat (15) in front-rear symmetry, the front part and the rear part of the lower part of the inner side of the shell (3) are respectively provided with a second supporting seat (16) in front-rear symmetry, the positions of the first supporting seat (15) and the second supporting seat (16) correspond to the end, far away from the arc-shaped conducting strip (13), the lower end of the first supporting seat (15) and the upper end of the second supporting seat (16) are respectively provided with a conductive seat (17), the conductive seats (17) which are opposite from each other up and down are electrically connected through a lead, the conductive seat (17) at the rear upper part is electrically connected with the negative pole of the storage battery (8) through a lead, the conductive seat (17) at the front upper part is electrically connected with the alarm (7) through a lead.

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