Oil conservator for transformer

Abstract

The utility model provides an oil conservator for a transformer, and belongs to the technical field of oil conservators for transformers. Comprising an oil conservator body, the oil conservator body is of a cavity structure, a connecting pipe is installed at the bottom of the oil conservator body, a top opening is formed in the oil conservator body, the connecting pipe is connected with the top opening, a limiting buckle is installed on the side wall of an inner cavity of the oil conservator body, and a first sliding rod is slidably connected into a center hole of the limiting buckle; the top of the first sliding rod is connected with a floater, a starting mechanism is installed at the bottom of the oil conservator body, the first sliding rod is matched with the starting mechanism, a sealing mechanism is installed in an inner cavity of the oil conservator body, and the sealing mechanism is matched with the top opening. When the insulating oil descends to the warning height, the floater descends along with the oil level, the first sliding rod descends to drive the starting mechanism to be started, the starting mechanism controls the closing mechanism to be started, and therefore the top opening in the top of the connecting pipe is rapidly closed through the closing mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil storage cabinets for transformers, and in particular relates to an oil storage cabinet for transformers. Background Art

[0002] Application No. 202321509310.7 provides an oil conservator for a transformer, wherein a buoyancy member is arranged at a height of a warning liquid level, and under the action of buoyancy, the buoyancy member pulls the sealing plug upward through a lifting rod, so that the lifting rod is separated from the connecting pipe, and the oil can flow normally through the connecting pipe. When the insulating oil level inside the main body of the oil conservator rises and falls due to thermal expansion and contraction, the buoyancy member is not affected, and when the insulating oil level inside the main body of the oil conservator drops to a minimum liquid level exceeding normal thermal expansion and contraction, the buoyancy member is affected, and as the liquid level continues to drop, the buoyancy member drops synchronously, and the buoyancy member drives the sealing plug to drop through the lifting rod, and the sealing plug blocks the connecting pipe, thereby preventing the oil from further entering the transformer through the connecting pipe, and reducing the leakage of the oil;

[0003] However, when the device is in use, as the insulating oil drops, the buoyancy piece will gradually drop, which causes the distance between the sealing plug and the guide cover to become closer and closer; when the insulating oil approaches but does not reach the warning height, the distance between the sealing plug and the guide cover will be very close, causing the oil inlet range at the opening of the guide cover to become smaller, affecting the normal oil inlet of the connecting pipe, and having poor practicality. Utility Model Content

[0004] In order to solve the problem of affecting normal oil inlet in the above-mentioned prior art, the utility model provides an oil conservator for a transformer, which adopts a starting mechanism combined with a closing mechanism to achieve the effect of quickly closing the connecting pipe when the insulating oil is at a warning height, and its specific technical scheme is as follows: an oil conservator for a transformer, comprising: an oil conservator main body, the oil conservator main body is a cavity structure, a connecting pipe is installed at the bottom of the oil conservator main body, a top opening is installed inside the oil conservator main body, the connecting pipe is connected to the top opening, a limiting buckle is installed on the side wall of the inner cavity of the oil conservator main body, a sliding rod 1 is slidably connected in the center hole of the limiting buckle, a float is connected to the top of the sliding rod 1, a starting mechanism is installed at the bottom of the oil conservator main body, the sliding rod 1 cooperates with the starting mechanism, a closing mechanism is installed in the inner cavity of the oil conservator main body, and the closing mechanism cooperates with the top opening.

[0005] Preferably, an exhaust port is installed on the top of the oil conservator body, and a breathing port and an oil level alarm output terminal are installed on the side wall of the oil conservator body.

[0006] Preferably, the starting mechanism includes: a bottom box 1, a switch button and a pressure plate, the bottom of the oil storage cabinet body is installed with a bottom box 1, and the inner bottom end of the bottom box 1 is installed with a switch button; the bottom of the slide rod 1 extends into the bottom box 1, and the bottom of the slide rod 1 is connected with a pressure plate, and the pressure plate and the switch button are located on the same vertical line.

[0007] Preferably, the closing mechanism comprises: a side shell and a connecting shell, the side wall of the top opening is connected to the side shell, the bottom of the side shell is connected to the connecting shell, an opening is provided on the inner wall of the top opening, a slide plate is slidably connected to the inside of the side shell, and the slide plate is adapted to the opening.

[0008] Preferably, a motor is connected to the bottom of the oil storage cabinet body, an inner groove is opened inside the side shell body, a rotating shaft is installed at the output end of the motor, the top of the rotating shaft extends into the inner groove, a bevel gear 1 is sleeved on the top of the rotating shaft, a bevel gear 2 is meshed with the surface of the bevel gear 1, a lead screw is sleeved on the center hole of the bevel gear 2, the lead screw is threadedly connected to the slide plate, a bearing seat is installed on the top wall of the inner groove, and the lead screw is sleeved on the bearing seat.

[0009] Preferably, the starting mechanism includes: a bottom box 2, an infrared transmitter, an infrared receiver and a baffle, the bottom box 2 is installed at the bottom of the oil storage cabinet body, the infrared transmitter and the infrared receiver are symmetrically installed inside the bottom box 2, and the infrared transmitter and the infrared receiver cooperate with each other; the bottom of the sliding rod 1 extends into the bottom box 2, the bottom of the sliding rod 1 is connected to the baffle, and the baffle is slidably connected to the inner wall of the bottom box 2.

[0010] In addition, the oil storage cabinet for transformers in the above technical solution provided by the utility model may also have the following additional technical features: the closing mechanism includes: a hydraulic cylinder, a top shell, a second slide bar and a buckle cover, the hydraulic cylinder is installed on the top of the oil storage cabinet body, the top shell is installed on the top wall of the inner cavity of the oil storage cabinet body, the bottom of the top shell is connected to the second slide bar, the bottom of the second slide bar is connected to the buckle cover, and the buckle cover is adapted to the top opening; an output shaft is installed at the output end of the hydraulic cylinder, the bottom of the output shaft extends into the top shell, the output shaft is connected to the second slide bar, and a connecting flange is installed at the connecting end of the output shaft and the second slide bar; a sealing ring is installed at the connection between the top shell and the second slide bar.

[0011] In the above technical solution, a rubber pad is installed on the inner top wall of the buckle cover.

[0012] The utility model discloses an oil storage cabinet for a transformer. Compared with the prior art, the utility model has the following beneficial effects: when the insulating oil of the transformer oil storage cabinet drops to a warning height, the float will drop along with the oil level, the sliding rod will drop and drive the starting mechanism to open, the starting mechanism controls the closing mechanism to open, so that the top opening of the connecting pipe is quickly closed by the closing mechanism to prevent the insulating oil from entering the transformer through the connecting block; when the insulating oil does not reach the warning height, the closing mechanism and the connecting pipe do not affect each other, so as to avoid affecting the normal oil inlet of the connecting pipe, and the utility model has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic front view of a first embodiment of an oil conservator for a transformer provided by the utility model;

[0014] Figure 2 for Figure 1 A magnified image of point A;

[0015] Figure 3 for Figure 1 The enlarged view of point B;

[0016] Figure 4 A front view schematic diagram of a second embodiment of the oil conservator for a transformer provided by the utility model;

[0017] Figure 5 for Figure 4 Enlarged view of point C;

[0018] in, Figures 1 to 5 The reference numerals and component names are: 1. oil storage cabinet body, 2. exhaust port, 3. breathing port, 4. oil level alarm output terminal, 5. connecting pipe, 6. top port, 7. limit buckle, 8. slide bar 1, 9. float, 10. starting mechanism, 11. closing mechanism, 12. opening, 13. slide plate, 14. inner groove, 15. rotating shaft, 16. bevel gear 1, 17. bevel gear 2, 18. lead screw, 19. bearing seat, 2 0. Sealing ring, 21. Rubber pad, 101. Bottom box one, 102. Switch button, 103. Pressure plate, 104. Bottom box two, 105. Infrared transmitter, 106. Infrared receiver, 107. Baffle, 111. Side shell, 112. Connecting shell, 113. Motor, 114. Hydraulic cylinder, 115. Top shell, 116. Output shaft, 117. Slide rod two, 118. Buckle cover, 119. Connecting flange. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Example 1: Please refer to Figure 1 to Figure 3 : An oil conservator for a transformer, comprising: an oil conservator body 1, the oil conservator body 1 is a cavity structure, a connecting pipe 5 is installed at the bottom of the oil conservator body 1, the top of the connecting pipe 5 extends into the oil conservator body 1, a top opening 6 is installed inside the oil conservator body 1, the connecting pipe 5 is connected to the top opening 6, and the connecting pipe 5 is communicated with the top opening 6; a limiting buckle 7 is installed on the side wall of the inner cavity of the oil conservator body 1, at least two limiting buckles 7 are provided, and multiple limiting buckles 7 are arranged in the vertical direction, a sliding rod 8 is slidably connected in the center hole of the limiting buckle 7, and a float 9 is connected to the top of the sliding rod 8, a starting mechanism 10 is installed at the bottom of the oil conservator body 1, the sliding rod 8 cooperates with the starting mechanism 10, and a closing mechanism 11 is installed in the inner cavity of the oil conservator body 1, and the closing mechanism 11 cooperates with the top opening 6.

[0021] As a preferred solution, further, an exhaust port 2 is installed on the top of the oil conservator body 1, and a breathing port 3 and an oil level alarm output terminal 4 are installed on the side wall of the oil conservator body 1.

[0022] As a preferred embodiment, further, the starting mechanism 10 includes: a bottom box 101, a switch button 102 and a pressure plate 103. The bottom of the oil storage cabinet body 1 is installed with a bottom box 101, and the switch button 102 is installed at the inner bottom end of the bottom box 101; the bottom of the slide rod 8 extends into the bottom box 101, and the bottom of the slide rod 8 is connected with a pressure plate 103. The pressure plate 103 and the switch button 102 are located on the same vertical line. The slide rod 8 moves downward to cause the pressure plate 103 to squeeze the switch button 102.

[0023] As a preferred embodiment, further, the closing mechanism 11 includes: a side shell 111 and a connecting shell 112, the side wall of the top opening 6 is connected to the side shell 111, the bottom of the side shell 111 is connected to the connecting shell 112, an opening 12 is provided on the inner wall of the top opening 6, and a slide plate 13 is slidably connected to the inside of the side shell 111, the slide plate 13 is adapted to the opening 12, and the slide plate 13 moves into the top opening 6 through the opening 12 to close the top opening of the connecting pipe 5.

[0024] As a preferred embodiment, further, a motor 113 is connected to the bottom of the oil storage cabinet body 1, and the motor 113 is electrically connected to the switch button 102. An inner groove 14 is opened inside the side shell 111, and a rotating shaft 15 is installed at the output end of the motor 113. The top of the rotating shaft 15 extends into the inner groove 14, and a bevel gear 16 is mounted on the top of the rotating shaft 15. The surface of the bevel gear 16 is meshed with a bevel gear 2 17, and the center hole of the bevel gear 2 17 is mounted with a lead screw 18, which is threadedly connected to the slide plate 13, and a bearing seat 19 is installed on the top wall of the inner groove 14, and the lead screw 18 is mounted on the bearing seat 19.

[0025] Working principle: the electrical components appearing in this application are all connected to an external power supply and a control switch when in use. After the utility model is installed, first check the installation fixation and safety protection of the utility model, and then it can be used; when in use, when the insulating oil drops to the warning height, the float 9 drops with the oil level, and the float 9 drives the slide bar 18 to move downward, so that the slide bar 18 drives the pressure plate 103 to move downward, and the pressure plate 103 presses the switch button 102, and the switch button 102 controls the motor 113 to drive the rotating shaft 15 to rotate, and the rotating shaft 15 drives the bevel gear 16 to rotate, and the bevel gear 16 meshes with the bevel gear 2 17 to rotate, and the bevel gear The second wheel 17 drives the lead screw 18 to rotate, and the lead screw 18 drives the slide plate 13 to slide into the opening 12, so that the slide plate 13 moves into the opening of the top opening 6, and the top opening 6 is closed to prevent the insulating oil from entering the connecting pipe 5; when the insulating oil rises, the float 9 rises accordingly, and the pressure plate 103 disengages from the switch button 102, and the switch button 102 controls the motor 113 to reverse, driving the rotating shaft 15 to reverse, and the rotating shaft 15 drives the bevel gear 1 16 and the bevel gear 2 17 to rotate in the opposite direction, and the bevel gear 2 17 drives the lead screw 18 to reverse, and the lead screw 18 drives the slide plate 13 to slide, and the slide plate 13 moves into the side shell 111, so that the top opening 6 at the top of the connecting pipe 5 is opened.

[0026] Example 2: Please refer to Figure 4-5 , an oil conservator for a transformer, which differs from Example 1 in that a starting mechanism 10 comprises: a bottom box 104, an infrared transmitter 105, an infrared receiver 106 and a baffle 107; a bottom box 104 is installed at the bottom of the main body 1 of the oil conservator, an infrared transmitter 105 and an infrared receiver 106 are symmetrically installed inside the bottom box 104, and the infrared transmitter 105 and the infrared receiver 106 cooperate with each other; the bottom of a slide bar 8 extends into the bottom box 104, a baffle 107 is connected to the bottom of the slide bar 8, and the baffle 107 is slidably connected to the inner wall of the bottom box 104; when the baffle 107 moves to the bottom of the bottom box 104, the infrared rays emitted by the infrared transmitter 105 are received by the infrared receiver 106.

[0027] As a preferred embodiment, further, the closing mechanism 11 includes: a hydraulic cylinder 114, a top shell 115, a second slide bar 117 and a buckle cover 118. The hydraulic cylinder 114 is installed on the top of the oil storage cabinet body 1, and the infrared receiver 106 is electrically connected to the hydraulic cylinder 114; the top shell 115 is installed on the top wall of the inner cavity of the oil storage cabinet body 1, and the bottom of the top shell 115 is connected to the second slide bar 117, and the bottom of the slide bar 117 is connected to the buckle cover 118, and the buckle cover 118 is suitable for the top opening 6. The output end of the hydraulic cylinder 114 is equipped with an output shaft 116, the bottom of the output shaft 116 extends into the top shell 115, the output shaft 116 is connected to the second slide bar 117, and the connecting end of the output shaft 116 and the second slide bar 117 is equipped with a connecting flange 119; a sealing ring 20 is installed at the connection between the top shell 115 and the second slide bar 117, and a rubber pad 21 is installed on the inner top wall of the buckle cover 118, which is convenient for reducing the impact force when the buckle cover 118 falls on the top opening 6.

[0028] When the insulating oil drops to the warning height, the float 9 drops with the oil level, and the float 9 drives the slide bar 118 to move downward, so that the slide bar 118 drives the baffle 107 to move downward, and the infrared rays emitted by the infrared transmitter 105 are received by the infrared receiver 106, and the infrared receiver 106 feeds back the information to the control system, and the control system controls the hydraulic cylinder 114 to work, and the hydraulic cylinder 114 drives the output shaft 116 to move, so that the output shaft 116 drives the slide bar 117 to move downward, and the slide bar 117 drives the buckle cover 118 to move downward. The buckle cover 118 covers the top of the top opening 6 to close the top opening 6 to prevent insulating oil from entering the connecting pipe 5; when the insulating oil rises, the float 9 rises accordingly, and the slide bar 18 drives the baffle 107 to move upward, the baffle 107 blocks the infrared rays, and the infrared receiver 106 cannot receive the infrared rays. Then, the control system controls the hydraulic cylinder 114 to retract the output shaft 116, so that the output shaft 116 drives the slide bar 2 117 to move upward, and the slide bar 2 117 drives the buckle cover 118 to move upward, so that the top opening 6 at the top of the connecting pipe 5 is opened.

[0029] The oil storage cabinet body, oil level alarm output terminal, float, switch button, motor, infrared transmitter, infrared receiver and hydraulic cylinder in this case are prior art. The oil storage cabinet body and float have the same structure and connection method as those in the cited documents. The motor is a three-phase motor. The switch button is electrically connected to the motor, and the infrared receiver is electrically connected to the hydraulic cylinder. As long as the oil storage cabinet body, oil level alarm output terminal, float, switch button, motor, infrared transmitter, infrared receiver and hydraulic cylinder meet the requirements of this case, they are all acceptable.

[0030] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. The terms "connection", "installation", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An oil conservator for a transformer, comprising: The oil storage cabinet body (1) is characterized in that the oil storage cabinet body (1) is a cavity structure, a connecting pipe (5) is installed at the bottom of the oil storage cabinet body (1), a top opening (6) is installed inside the oil storage cabinet body (1), the connecting pipe (5) is connected to the top opening (6), a limit buckle (7) is installed on the inner cavity side wall of the oil storage cabinet body (1), a slide rod (8) is slidably connected in the center hole of the limit buckle (7), a float (9) is connected to the top of the slide rod (8), a starting mechanism (10) is installed at the bottom of the oil storage cabinet body (1), the slide rod (8) cooperates with the starting mechanism (10), and a closing mechanism (11) is installed in the inner cavity of the oil storage cabinet body (1), and the closing mechanism (11) cooperates with the top opening (6).

2. The transformer oil conservator according to claim 1, characterized in that: An exhaust port (2) is installed on the top of the oil storage cabinet body (1), and a breathing port (3) and an oil level alarm output terminal (4) are installed on the side wall of the oil storage cabinet body (1).

3. The oil conservator for transformer according to claim 2, characterized in that: The starting mechanism (10) comprises: a bottom box (101), a switch button (102) and a pressure plate (103); the bottom of the oil storage cabinet body (1) is installed with the bottom box (101); the inner bottom end of the bottom box (101) is installed with the switch button (102); the bottom of the sliding rod (8) extends into the bottom box (101); the bottom of the sliding rod (8) is connected with the pressure plate (103); the pressure plate (103) and the switch button (102) are located on the same vertical line.

4. The transformer oil conservator according to claim 3, characterized in that: The closing mechanism (11) comprises: a side shell (111) and a connecting shell (112); the side wall of the top opening (6) is connected to the side shell (111); the bottom of the side shell (111) is connected to the connecting shell (112); an opening (12) is provided on the inner wall of the top opening (6); a slide plate (13) is slidably connected to the inside of the side shell (111); and the slide plate (13) is adapted to fit the opening (12).

5. The transformer oil conservator according to claim 4, characterized in that: The bottom of the oil storage cabinet body (1) is connected to a motor (113), an inner groove (14) is provided inside the side housing (111), a rotating shaft (15) is installed at the output end of the motor (113), the top of the rotating shaft (15) extends into the inner groove (14), a bevel gear 1 (16) is sleeved on the top of the rotating shaft (15), a bevel gear 2 (17) is meshed on the surface of the bevel gear 1 (16), a lead screw (18) is sleeved on the center hole of the bevel gear 2 (17), the lead screw (18) is threadedly connected to the slide plate (13), a bearing seat (19) is installed on the top wall of the inner groove (14), and the lead screw (18) is sleeved on the bearing seat (19).

6. The transformer oil conservator according to claim 2, characterized in that: The starting mechanism (10) comprises: a bottom box (104), an infrared transmitter (105), an infrared receiver (106) and a baffle (107); the bottom of the oil storage cabinet body (1) is provided with the bottom box (104); the inside of the bottom box (104) is symmetrically provided with the infrared transmitter (105) and the infrared receiver (106); the infrared transmitter (105) and the infrared receiver (106) cooperate with each other; the bottom of the sliding rod (8) extends into the bottom box (104); the bottom of the sliding rod (8) is connected with the baffle (107); the baffle (107) is slidably connected to the inner wall of the bottom box (104).

7. The oil conservator for transformer according to claim 6, characterized in that: The sealing mechanism (11) comprises: a hydraulic cylinder (114), a top shell (115), a second slide bar (117) and a buckle cover (118); the hydraulic cylinder (114) is installed on the top of the oil storage cabinet body (1); the top shell (115) is installed on the top wall of the inner cavity of the oil storage cabinet body (1); the bottom of the top shell (115) is connected to the second slide bar (117); the bottom of the second slide bar (117) is connected to the buckle cover (118); the buckle cover (118) is matched with the top opening (6); An output shaft (116) is installed at the output end of the hydraulic cylinder (114), the bottom of the output shaft (116) extends into the top shell (115), the output shaft (116) is connected to the second slide bar (117), and a connecting flange (119) is installed at the connecting end between the output shaft (116) and the second slide bar (117); a sealing ring (20) is installed at the connection between the top shell (115) and the second slide bar (117), and a rubber pad (21) is installed on the inner top wall of the buckle cover (118).

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