Full-automatic benzyl toluene filling device
By designing a fully automated filling device with a metering box, piston plate, and pressure sensor, the problem of uneven filling of benzyl toluene in existing technologies has been solved, achieving accurate metering and sealing, and improving filling efficiency and the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGIX TIANYI SPECIAL OIL CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-24
AI Technical Summary
Existing benzyl toluene filling devices cannot achieve quantitative filling, resulting in uneven filling volume, affecting work efficiency and poor device practicality.
A fully automatic filling device was designed, comprising a metering tank, piston plate, push rod, controller, and pressure sensor. The metering is controlled by a solenoid valve and equipped with a residual alarm mechanism to ensure continuous metering.
It enables precise quantitative filling of benzyltoluene, improves filling efficiency and equipment sealing, and ensures the quality of benzyltoluene insulating oil and the convenience of staff.
Smart Images

Figure CN224159468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filling device technology, and in particular to a fully automatic benzyl toluene filling device. Background Technology
[0002] Benzyltoluene is a high-temperature synthetic heat transfer oil with excellent thermal stability, antioxidant properties, and a low pour point. It is widely used in various types of food processing, spraying, and non-woven fabric baking equipment for gas-phase applications, and can also be used for low-temperature cooling. A mixture of monobenzyltoluene and dibenzyltoluene is an excellent impregnating agent for power capacitors and can be widely used in the power industry. It exhibits excellent low-temperature partial discharge performance, high operating field strength, and significantly superior electrical insulation properties compared to PXE from Japan and MIPB from the United States, earning it the title of the world's third-generation new capacitor oil.
[0003] The filling equipment commonly used for benzyl toluene oil in the market generally has the problem of being unable to fill it quantitatively. This results in the filling amount of benzyl toluene insulating oil during the production process being inconsistent, which seriously affects the work efficiency of the staff and makes the equipment less practical, causing inconvenience to the users. Utility Model Content
[0004] The purpose of this invention is to solve the technical problems existing in the prior art and to provide a fully automatic benzyl toluene filling device.
[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: a fully automatic benzyl toluene filling device, comprising a base, a support rod on the base, a storage box on the support rod, a feeding hopper on the storage box, a sealing cover on the feeding hopper, and the feeding hopper and the cover being connected by a locking assembly; a remaining quantity alarm mechanism inside the storage box; a metering tank at the bottom of the feeding hopper, a discharge port at the bottom of the metering tank, and a filling nozzle connected to the discharge port; the bottom of the storage box being connected to the metering tank via a guide pipe; a piston plate slidably connected inside the metering tank; a push rod fixedly installed on one side of the piston plate; one end of the push rod extending out of the metering tank and slidably connected to the metering tank; a controller and a pressure sensor on the support rod; the end of the push rod extending out of the metering tank directly facing the pressure sensor; the pressure sensor being electrically connected to the controller; and solenoid valves on both the discharge port and the guide pipe, the solenoid valves being electrically connected to the controller.
[0006] Preferably, the locking assembly includes a locking block and a locking block provided on the upper surface of the feed hopper wall, a locking groove for locking and limiting the locking block on the hopper cover, and a limiting frame on the hopper cover, with the limiting frame and the locking block providing limiting.
[0007] Preferably, the upper surface of the locking block is provided with a locking groove, a guide rod is provided in the locking groove, a moving block is slidably connected to the guide rod, a spring is fixedly connected to one side of the moving block, the spring is sleeved with the guide rod, a locking rod is fixedly connected to the surface of the moving block, the locking rod is slidably connected to the locking block, and the locking rod is locked with the limiting frame.
[0008] Preferably, the remaining quantity alarm device includes an alarm box and a guide rail. A float is slidably mounted on the guide rail, and a metal contact is provided on the right side surface of the float. A contact block that cooperates with the metal contact is provided at the bottom of the storage box.
[0009] Preferably, the alarm box is equipped with an alarm circuit, which includes a power supply, a voltage divider resistor, a buzzer, a contact block, and a guide rail. The power supply, voltage divider resistor, buzzer, contact block, and guide rail are all electrically connected by wires.
[0010] Preferably, the float is made of a hollow body of low-density polystyrene polymer, and a metal coating is applied to the surface of the hollow body. The metal coating is connected to the metal contacts, and the density of the hollow body is 0.2–0.6 g / cm³. 3 .
[0011] Preferably, a sealing rubber block is provided at the bottom of the inner part of the compartment cover.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model, through the design of the bin cover and locking assembly, enables the bin cover to be quickly disassembled and fixed, thereby sealing the storage box, improving the sealing effect of the storage box, effectively preventing the entry of external moisture or dust, and protecting the quality of the benzyl toluene insulating oil inside the storage box.
[0014] 2. This utility model, through the setting of a quantitative box, piston plate, push rod, controller, and pressure sensor, can realize quantitative filling of benzyltoluene insulating oil, thereby improving the filling accuracy of benzyltoluene insulating oil in this utility model.
[0015] 3. By setting up a residual alarm mechanism, this utility model can activate the buzzer in the alarm circuit when the amount of benzyltoluene insulating oil in the storage box is low, reminding the staff to add benzyltoluene insulating oil to the storage box, thus enabling this utility model to achieve continuous quantitative filling of benzyltoluene insulating oil. Attached Figure Description
[0016] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the polybenzyltoluene filling structure inside the storage box of this utility model;
[0019] Figure 3 This is a schematic diagram of the alarm circuit of this utility model;
[0020] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.
[0021] Attached image captions:
[0022] 1-Base, 2-Support rod, 3-Storage box, 4-Contact block, 5-Alarm box, 6-Metal contact, 7-Float block, 8-Guide rail, 9-Feeding hopper, 10-Hybrid cover, 11-Control box, 12-Pressure sensor, 13-Drawer pipe, 14-Quantitative tank, 15-Filling port, 16-Oil outlet, 17-Piston plate, 18-Push rod, 19-Clamping block, 20-Limit frame, 21-Clamping rod, 22-Moving block, 23-Spring, 24-Guide rod, 25-Buzzer. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0027] Reference Figures 1-4 According to a preferred embodiment of the present invention, a fully automatic benzyl toluene filling device includes a base 1, a support rod 2 on the base 1, a storage box 3 on the support rod 2, a feeding bin 9 on the storage box 3, a bin cover 10 for sealing on the feeding bin 9, and a sealing rubber block at the bottom of the bin cover 10; the feeding bin 9 and the bin cover 10 are connected by a locking assembly, the locking assembly including a locking block 19 and a locking block on the upper surface of the bin wall of the feeding bin 9, a locking groove for the locking block 19 to limit the engagement on the bin cover 10, and a limiting frame 20 on the bin cover 10, the limiting frame 20 limiting the engagement with the locking block;
[0028] Furthermore, a locking groove is provided on the upper surface of the locking block, and a guide rod 24 is provided in the locking groove. A moving block 22 is slidably connected to the guide rod 24. A spring 23 is fixedly connected to one side of the moving block 22. The spring 23 is sleeved with the guide rod 24. A locking rod 21 is fixedly connected to the surface of the moving block 22. The locking rod 21 is slidably connected to the locking block and is engaged with the limiting frame 20.
[0029] Specifically, during use, benzyl toluene insulating oil is added to the storage box 3 through the feeding hopper 9. Then, the moving block 22 in the locking groove on the locking block is moved. The moving block 22 drives the locking rod 21 to move. While moving on the guide rod 24, the moving block 22 compresses the spring 23. Then, the locking groove of the cover 10 is aligned with the locking block 19 on the feeding hopper 9 and then the cover is placed on the feeding hopper 9. The sealing rubber block at the bottom of the cover 10 abuts against the inner wall of the opening of the feeding hopper 9 to seal it. After the cover 10 is closed, the moving block 22 is released. Under the action of 23, the locking rod 21 is reset and engages with the limiting frame 20 on the cover 10, thereby fixing the cover 10 and sealing the storage box 3. This improves the sealing effect of the storage box 3, effectively preventing the entry of external moisture or dust and protecting the quality of the benzyl toluene insulating oil inside the storage box 3. When it is necessary to open the cover 10, it is only necessary to pull the moving block 22 to release the limiting of the locking rod 21 and the limiting frame 20 to remove the cover 10, which makes it easy for staff to quickly disassemble and assemble the cover 10.
[0030] In this embodiment, a metering box 14 is provided at the bottom of the feeding hopper 9, and a discharge port 15 is provided at the bottom of the metering box 14. A filling nozzle 16 is connected to the discharge port 15. The bottom of the storage box 3 is connected to the metering box 14 through a guide pipe 13. A piston plate 17 is slidably connected inside the metering box 14. A push rod 18 is fixedly installed on one side of the piston plate 17. One end of the push rod 18 extends out of the metering box 14 and is slidably connected to the metering box 14. A controller 11 and a pressure sensor 12 (the controller 11 is a PLC controller) are provided on the support rod 2. The end of the push rod 18 extending out of the metering box 14 is directly opposite the position of the pressure sensor 12. The pressure sensor 12 is electrically connected to the controller 11. Solenoid valves are provided on both the discharge port 15 and the guide pipe 13. The solenoid valves are electrically connected to the controller 11.
[0031] Specifically, in use, the solenoid valve on the guide pipe 13 is opened by the controller 11, and the benzyltoluene insulating oil in the storage tank 3 flows into the metering tank 14 through the guide pipe 13. The benzyltoluene insulating oil entering the metering tank 14 will push the piston plate 17. The movement of the piston plate 17 will drive the push rod 18 to slide until the piston plate 17 moves to the leftmost side of the metering tank 14. At this time, the push rod 18 extends outward to its maximum length and contacts the pressure sensor 12, so that the pressure sensor 12 transmits pressure information to the controller 11. As soon as the controller 11 receives the information from the pressure sensor 12, it controls the solenoid valve on the guide pipe 13 to close and the solenoid valve on the outlet 15 to open. Then, the metered amount of benzyltoluene insulating oil in the metering tank 14 is filled through the filling nozzle 16, thereby realizing the metered filling of benzyltoluene insulating oil and improving the filling accuracy of benzyltoluene insulating oil in this utility model.
[0032] In practical applications of this application, as benzyltoluene insulating oil is filled, the amount of benzyltoluene insulating oil in storage box 3 will gradually decrease. If the staff is unaware of the amount of benzyltoluene insulating oil in storage box 3, the amount of benzyltoluene insulating oil in metering box 14 may not push the push rod 18 to contact the pressure sensor 12, causing the solenoid valve of the discharge port 15 on metering box 14 to remain closed, thus affecting the filling efficiency of benzyltoluene insulating oil.
[0033] In this embodiment, a remaining volume alarm mechanism is provided inside the storage box 3. The remaining volume alarm device includes an alarm box 5 and a guide rail 8. A float 7 is slidably arranged on the guide rail 8. A metal contact 6 is provided on the right side surface of the float 7. A contact block 4 that cooperates with the metal contact 6 is provided at the bottom of the storage box 3.
[0034] Furthermore, the alarm box 5 is equipped with an alarm circuit, which includes a power supply, a voltage divider resistor, a buzzer, a contact block 4, and a guide rail 8. The power supply, voltage divider resistor, buzzer 25, contact block 4, and guide rail 8 are all electrically connected by wires.
[0035] Furthermore, the float 7 is made of a hollow body of low-density polystyrene polymer, and a metal coating is applied to the surface of the hollow body. The metal coating is connected to the metal contact 6, forming a conductive path. The density of the hollow body is 0.2–0.6 g / cm³. 3 The density of the hollow matrix is significantly lower than that of benzyl toluene oil (approximately 0.95–1.0 g / cm³). 3 ), to ensure that float 7 floats in benzyl toluene oil.
[0036] Specifically, during use, as the amount of benzyltoluene insulating oil in the storage box 3 decreases, the position of the float 7 floating on the benzyltoluene insulating oil will drop at the guide rail 8. When the float 7 drops to the point where the metal contact 6 on the float 7 contacts the contact block 4, the alarm circuit is activated, and the buzzer 25 in the alarm circuit will work to remind the staff to add benzyltoluene insulating oil to the storage box 3, so that this utility model can realize continuous quantitative filling of benzyltoluene insulating oil.
[0037] Without causing conflict, those skilled in the art can freely combine and use the above-mentioned additional technical features.
[0038] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.
Claims
1. A fully automatic benzyltoluene filling device, characterized in that: The device includes a base with a support rod, a storage box on the support rod, a feed hopper on the storage box, a sealing cover on the feed hopper, and a locking assembly connecting the feed hopper and the cover. The storage box contains a level alarm mechanism. A metering tank is located at the bottom of the feed hopper, with a discharge port at the bottom of the metering tank. A filling nozzle is connected to the discharge port. The bottom of the storage box is connected to the metering tank via a guide pipe. A piston is slidably connected inside the metering tank. A push rod is fixedly mounted on one side of the piston plate, with one end of the push rod extending out of the metering tank and slidably connected to it. A controller and a pressure sensor are mounted on the support rod, with the end of the push rod extending out of the metering tank directly opposite the pressure sensor. The pressure sensor is electrically connected to the controller. Solenoid valves are installed on both the discharge port and the guide pipe, and these solenoid valves are electrically connected to the controller.
2. The fully automatic benzyltoluene filling device according to claim 1, characterized in that: The locking assembly includes a locking block and a locking block on the upper surface of the feed hopper wall, a locking groove on the hopper cover for locking and limiting the locking block, and a limiting frame on the hopper cover for limiting the locking block.
3. The fully automatic benzyltoluene filling device according to claim 2, characterized in that: The upper surface of the locking block has a locking groove, a guide rod is set in the locking groove, a moving block is slidably connected to the guide rod, a spring is fixedly connected to one side of the moving block, the spring is sleeved with the guide rod, a locking rod is fixedly connected to the surface of the moving block, the locking rod is slidably connected to the locking block, and the locking rod is locked with the limit frame.
4. The fully automatic benzyltoluene filling device according to claim 1, characterized in that: The remaining quantity alarm device includes an alarm box and a guide rail. A float is slidably mounted on the guide rail, and a metal contact is provided on the right side surface of the float. A contact block that works with the metal contact is provided at the bottom of the storage box.
5. The fully automatic benzyltoluene filling device according to claim 4, characterized in that: The alarm box is equipped with an alarm circuit, which includes a power supply, voltage divider resistors, a buzzer, contact blocks, and a guide rail. The power supply, voltage divider resistors, buzzer, contact blocks, and guide rail are all electrically connected by wires.
6. The fully automatic benzyltoluene filling device according to claim 5, characterized in that: The float is made of a hollow body of low-density polystyrene polymer, with a metal coating on the surface of the hollow body. The metal coating is connected to the metal contacts. The density of the hollow body is 0.2–0.6 g / cm³. 3 .
7. The fully automatic benzyltoluene filling device according to claim 1, characterized in that: A sealing rubber block is installed at the bottom inside the compartment cover.