Oil temperature detection alarm

Abstract

The utility model discloses an oil temperature detection alarm, which comprises an oil temperature sensor and an overtemperature alarm, and the oil temperature sensor consists of a mounting flange, a tailstock and a detection rod. During use, the extension shaft of the electric telescopic rod extends and retracts to drive the lantern ring to descend and ascend, and when the lantern ring moves, the scraper slidably connected with the outer wall of the detection rod is used for scraping oil dirt on the outer wall of the detection rod, so that the cleanliness of the outer wall of the detection rod is kept, and the detection precision is effectively improved; the electric telescopic rod is arranged above the installation flange and can be installed from the outside, the electric telescopic rod and the installation flange are sealed through the second sealing ring, high-temperature oil to be detected cannot cause damage to the electric telescopic rod, and the service life of the oil temperature detection alarm is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil temperature sensors, in particular to an oil temperature detection alarm. Background Art

[0002] The oil temperature detection alarm is a device applied to a mold temperature control machine, also known as a mold temperature controller. The common one is an oil temperature machine, and the temperature control accuracy can reach ±0.1°C. The mold temperature control machine is widely used in various industries such as plastic molding, die casting, rubber tires, rollers, chemical reaction kettles, bonding, and internal mixing. For example, a prior art proposes an energy-saving and consumption-reducing mold temperature control machine, including a mold temperature control machine main cabinet, an over-temperature alarm, a cooling fan, a sealing gasket, a circulation pump, an oil temperature detector, etc. In this prior art, the oil temperature is detected by an oil temperature detector and an over-temperature alarm, and an alarm prompt can be given when the temperature exceeds the limit. In order to overcome the problem of relatively low accuracy of a non-contact oil temperature detector, a contact type WRN-187 model detector is selected;

[0003] However, the above-mentioned contact type detector also has certain disadvantages when used in high-temperature oil for a long time. Long-term contamination is likely to form oil scale on the outside of the device, thereby affecting the measurement accuracy of the device. For this reason, an improved technology in the market proposes an oil temperature sensor with corrosion resistance and oil repellency, including an oil temperature sensor main body and a motor. In this improved technology, the driven gear can be rotated by driving the driving gear, so that the scraper at the bottom of the driven gear can clean the oil scale on the outer wall of the heat conduction protection shell. However, it is found in actual application that since there is no fixed measure at the end of the scraper away from the gear, it is easy to be deformed by force during the scraping process and cannot achieve the purpose of cleaning. Moreover, the oil temperature detector provided by this improved technology must be installed from the inside of the part to be detected, but the motor provided does not consider the problem of anti-oil pollution and is easy to be damaged, and the practicability is very low. Therefore, it is necessary to improve and optimize the structure of the oil temperature detection alarm. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art and propose an oil temperature detection alarm.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil temperature detection alarm, comprising an oil temperature sensor and an over-temperature alarm, the oil temperature sensor consisting of a mounting flange, a tailstock and a detection rod, the inner wall of the mounting flange and near the left and right ends are provided with fixing holes that penetrate up and down, the tailstock is fixedly connected to the upper wall of the mounting flange, the upper end of the tailstock is fixedly connected with a wire, the lower end of the tailstock passes through the inner wall of the mounting flange and extends to the lower side of the mounting flange, the detection rod is fixedly connected to one end of the tailstock that extends to the lower side of the mounting flange, the lower wall of the mounting flange and the outer periphery of the detection rod are fixedly connected with a sealing plug, the outer wall of the sealing plug and the first sealing structure are provided between the tailstock and the mounting flange, the outer wall of the detection rod is provided with a ring, a driving structure for driving the ring to move up and down is provided between the ring and the mounting flange, and a cleaning structure for cleaning oil stains on the outer wall of the detection rod is provided between the ring and the detection rod.

[0006] As a further description of the above technical solution:

[0007] The first sealing structure comprises two groups of first sealing rings, which are respectively arranged on the outer wall of the sealing plug and at the connection between the outer wall of the tail seat and the mounting flange.

[0008] As a further description of the above technical solution:

[0009] The driving structure includes two groups of electric telescopic rods, which are fixedly connected to the upper wall of the mounting flange and are respectively located on the left and right sides of the tailstock. The extension shafts of the two groups of electric telescopic rods penetrate the inner wall of the mounting flange and extend into the interior of the sealing plug. The ends of the extension shafts of the two groups of electric telescopic rods extending into the interior of the sealing plug are fixedly connected to the upper wall of the collar.

[0010] As a further description of the above technical solution:

[0011] A second sealing ring for sealing is provided at the connection between the outer wall of the electric telescopic rod and the mounting flange.

[0012] As a further description of the above technical solution:

[0013] The cleaning structure is a scraping ring, the scraping ring is sleeved on the inner side wall of the sleeve ring, and the detection rod penetrates the inner side wall of the scraping ring and is slidably connected thereto.

[0014] As a further description of the above technical solution:

[0015] The inner side wall of the scraper ring is provided with an inner convex ring protruding toward the axis of the scraper ring.

[0016] The utility model has the following beneficial effects:

[0017] Compared with the prior art, during use, the oil temperature detection alarm extends and retracts the extending shaft of the electric telescopic rod, driving the collar to descend and ascend. When the collar moves, it scrapes the oil scale on the outer wall of the detection rod through the scraping that is slidably connected to the outer wall of the detection rod, maintaining the cleanliness of the outer wall of the detection rod, effectively improving the detection accuracy. The electric telescopic rod is arranged above the mounting flange and can be installed from the outside. A second sealing ring is used for sealing between the electric telescopic rod and the mounting flange, and the high-temperature oil to be detected will not cause damage to the electric telescopic rod, effectively increasing the service life of the oil temperature detection alarm. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an oil temperature detection alarm proposed by the present utility model;

[0019] Figure 2 It is a partial cross-sectional view of the connection structure of the mounting flange, sealing plug, tail seat, collar, detection rod, and scraping ring of an oil temperature detection alarm proposed by the present utility model;

[0020] Figure 3 It is a cross-sectional view of the internal structure of the scraping ring of an oil temperature detection alarm proposed by the present utility model in a free state;

[0021] Figure 4 It is a partial cross-sectional view of the internal structure of the collar of an oil temperature detection alarm proposed by the present utility model.

[0022] Legend Explanation:

[0023] 1. Mounting flange; 2. Tail seat; 3. Conducting wire; 4. Detection rod; 5. Sealing plug; 6. First sealing ring; 7. Electric telescopic rod; 8. Fixing hole; 9. Second sealing ring; 10. Collar; 11. Scraping ring; 12. Inner convex ring. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Refer to Figures 1 to 4, an oil temperature detection alarm provided by the utility model: includes an oil temperature sensor and an over-temperature alarm. The oil temperature sensor consists of a mounting flange 1, a tailstock 2, and a detection rod 4. Fixing holes 8 that penetrate up and down are provided on the inner wall of the mounting flange 1 near both the left and right ends. The mounting flange 1 can be fixed through the fixing holes 8 with screws. The oil temperature sensor is electrically connected to the over-temperature alarm. The oil temperature is detected by the oil temperature sensor, and the abnormal oil temperature is alarmed through the over-temperature alarm;

[0026] As Figure 1 , Figure 2 shown, for convenient external installation, the tailstock 2 is fixedly connected to the upper wall of the mounting flange 1. A wire 3 is fixedly connected to the upper end of the tailstock 2. The lower end of the tailstock 2 penetrates the inner wall of the mounting flange 1 and extends to the lower side of the mounting flange 1. The detection rod 4 is fixedly connected to one end of the tailstock 2 extending to the lower side of the mounting flange 1. A sealing plug 5 is fixedly connected to the lower wall of the mounting flange 1 and around the detection rod 4. A detection hole is reserved in the area to be detected. During installation, the sealing plug 5 is inserted into the installation hole, and then screws are inserted through the fixing holes 8 on the mounting flange 1 to fix the mounting flange 1 in the area to be detected. During subsequent maintenance, the screws can be removed to pull out the oil temperature sensor upward, which is very convenient;

[0027] As Figure 1 , Figure 2 shown, in order to seal the connection, a first sealing structure is provided between the outer wall of the sealing plug 5 and between the tailstock 2 and the mounting flange 1. The first sealing structure includes two groups of first sealing rings 6. The two groups of first sealing rings 6 are respectively arranged on the outer wall of the sealing plug 5 and at the connection between the outer wall of the tailstock 2 and the mounting flange 1. The space between the outer wall of the sealing plug 5 and the installation hole and between the tailstock 2 and the mounting flange 1 is sealed by a group of first sealing rings 6 respectively;

[0028] As Figure 1 , Figure 2 and Figure 4 shown, in order to form a scraping and cleaning action, a collar 10 is sleeved on the outer wall of the detection rod 4. A driving structure for driving the collar 10 to move up and down is provided between the collar 10 and the mounting flange 1. The driving structure includes two groups of electric telescopic rods 7. The two groups of electric telescopic rods 7 are both fixedly connected to the upper wall of the mounting flange 1 and are respectively located on the left and right sides of the tailstock 2. The extending shafts of the two groups of electric telescopic rods 7 penetrate the inner wall of the mounting flange 1 and extend into the sealing plug 5. The ends of the extending shafts of the two groups of electric telescopic rods 7 extending into the sealing plug 5 are fixedly connected to the upper wall of the collar 10. A second sealing ring 9 for sealing is provided at the connection between the outer wall of the electric telescopic rod 7 and the mounting flange 1. When the extending shafts of the electric telescopic rods 7 extend and retract, the collar 10 can be driven to move down or up along the outer wall of the detection rod 4, thus forming a scraping action;

[0029] As Figure 2 , Figure 3As shown in the figure, in order to clean the oil dirt on the outer wall of the detection rod 4 when the collar 10 moves up and down, a cleaning structure for cleaning the oil dirt on the outer wall of the detection rod 4 is provided between the collar 10 and the detection rod 4. The cleaning structure is a scraping ring 11. The scraping ring 11 is sleeved on the inner side wall of the collar 10. The detection rod 4 passes through the inner side wall of the scraping ring 11 and is slidably connected thereto. An inner convex ring 12 protruding towards the axis of the scraping ring 11 is provided on the inner side wall of the scraping ring 11. The scraping ring 11 can be made of a commonly used rubber on the market that is heat-resistant and oil-resistant. When the scraping ring 11 is not stressed, the inner convex ring 12 fills the inside of the scraping ring 11 and is close to a closed state. After being sleeved on the outer wall of the detection rod 4, a large wrapping force can be formed through the inner convex ring 12, thereby improving the cleaning ability. When the collar 10 drives the scraping ring 11 to move up and down, the oil dirt on the outer wall of the detection rod 4 can be cleaned to improve the detection accuracy of the detection rod 4.

[0030] Working principle: The mounting flange 1 can be fixed by matching the fixing holes 8 with screws. A detection hole is reserved in the area to be detected. During installation, the sealing plug 5 is inserted into the installation hole, and then the screws are inserted through the fixing holes 8 on the mounting flange 1 to fix the mounting flange 1 in the area to be detected. During subsequent maintenance, the screws can be removed and the oil temperature sensor can be pulled out upwards, which is very convenient. A set of first sealing rings 6 are respectively used for sealing between the outer wall of the sealing plug 5 and the installation hole and between the tailstock 2 and the connection of the mounting flange 1. When the extending shaft of the electric telescopic rod 7 extends and retracts, it can drive the collar 10 to move downwards or upwards along the outer wall of the detection rod 4, thereby forming a scraping action. The scraping ring 11 can be made of a commonly used rubber on the market that is heat-resistant and oil-resistant. When the scraping ring 11 is not stressed, the inner convex ring 12 fills the inside of the scraping ring 11 and is close to a closed state. After being sleeved on the outer wall of the detection rod 4, a large wrapping force can be formed through the inner convex ring 12, thereby improving the cleaning ability. When the collar 10 drives the scraping ring 11 to move up and down, the oil dirt on the outer wall of the detection rod 4 can be cleaned to improve the detection accuracy of the detection rod 4.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the previous embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the previous embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil temperature detection alarm, characterized in that: The oil temperature sensor comprises an oil temperature sensor and an over-temperature alarm. The oil temperature sensor comprises a mounting flange (1), a tailstock (2) and a detection rod (4). The inner wall of the mounting flange (1) and near both left and right ends are provided with fixing holes (8) which penetrate vertically. The tailstock (2) is fixedly connected to the upper wall of the mounting flange (1). The upper end of the tailstock (2) is fixedly connected to a wire (3). The lower end of the tailstock (2) penetrates the inner wall of the mounting flange (1) and extends to the lower side of the mounting flange (1). The detection rod (4) is fixedly connected to the tailstock (2) and extends to the mounting flange. A sealing plug (5) is fixedly connected to the lower wall of the mounting flange (1) and is located on the periphery of the detection rod (4); a first sealing structure is arranged on the outer wall of the sealing plug (5) and between the tailstock (2) and the mounting flange (1); a collar (10) is sleeved on the outer wall of the detection rod (4); a driving structure for driving the collar (10) to move up and down is arranged between the collar (10) and the mounting flange (1); and a cleaning structure for cleaning oil stains on the outer wall of the detection rod (4) is arranged between the collar (10) and the detection rod (4).

2. The oil temperature detection alarm according to claim 1, characterized in that: The first sealing structure comprises two groups of first sealing rings (6), and the two groups of first sealing rings (6) are respectively arranged on the outer wall of the sealing plug (5) and the connection between the outer wall of the tail seat (2) and the mounting flange (1).

3. The oil temperature detection alarm according to claim 2, characterized in that: The driving structure comprises two groups of electric telescopic rods (7), the two groups of electric telescopic rods (7) are fixedly connected to the upper wall of the mounting flange (1) and are respectively located on the left and right sides of the tailstock (2), the extension shafts of the two groups of electric telescopic rods (7) penetrate the inner wall of the mounting flange (1) and extend into the interior of the sealing plug (5), and the ends of the extension shafts of the two groups of electric telescopic rods (7) extending into the interior of the sealing plug (5) are fixedly connected to the upper wall of the collar (10).

4. The oil temperature detection alarm according to claim 3, characterized in that: A second sealing ring (9) for sealing is provided at the connection between the outer wall of the electric telescopic rod (7) and the mounting flange (1).

5. The oil temperature detection alarm according to claim 4, characterized in that: The cleaning structure is a scraping ring (11), the scraping ring (11) is sleeved on the inner wall of the sleeve ring (10), and the detection rod (4) penetrates the inner wall of the scraping ring (11) and is slidably connected thereto.

6. The oil temperature detection alarm according to claim 5, characterized in that: The inner side wall of the scraper ring (11) is provided with an inner convex ring (12) protruding toward the axis of the scraper ring (11).

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