Oil leakage prevention double-branch temperature sensor sealing device

Abstract

The utility model relates to an anti-oil-leakage double-branch temperature sensor sealing device, which comprises a distribution head and sealing parts, the distribution head is a hollow inner cavity, the end face of the distribution head is provided with two internal thread mounting holes, and each internal thread mounting hole is connected with one sealing part. The sealing part comprises a double-thread head, a conical sealing sleeve and a compression nut, one end of the double-thread head is connected with the internal thread mounting hole, the other end of the double-thread head is in threaded connection with the compression nut, the end face of the end, connected with the compression nut, of the double-thread head is attached to the conical face of the conical sealing sleeve, and the conical sealing sleeve is located in an inner cavity of the compression nut and is compressed by the compression nut. According to the oil leakage prevention sealing device for the double temperature sensors, the two temperature sensors are integrated together through the distribution head, only one mounting hole needs to be formed in the tested equipment, and the outer side walls of the temperature sensors are sealed in a mode of extruding the conical sealing sleeve; the probability of oil leakage after double sensors are installed on the tested equipment can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measuring element sealing, and more specifically to an oil leakage-proof double-branch temperature sensor sealing device. Background Art

[0002] When the temperature sensor measures the temperature of equipment such as high-temperature oil tiles, it needs to be immersed in high-temperature oil for a long time. When the temperature sensor is immersed in high-temperature oil for a long time, the oil in the tested equipment is easy to slowly penetrate outward from the connection between the temperature sensor housing and the cable, resulting in oil leakage, which causes safety hazards. In the prior art, a sealing ring is usually used to seal the temperature sensor on the tested equipment. The sealing effect of the sealing ring is poor and it is not convenient to disassemble, which leads to the weak oil seepage prevention ability of the temperature sensor and inconvenient maintenance. In addition, for more important positions in the tested equipment, two temperature sensors are generally used to measure the temperature of the high-temperature oil in the equipment. The staff can compare the readings of the two temperature sensors to determine whether the temperature difference is within a reasonable range. If it is within a reasonable range, it is further determined whether the oil temperature in the tested equipment is within a normal range, and the oil temperature of the tested equipment is monitored; if the difference exceeds the reasonable range, it is determined whether there is a temperature sensor that is abnormal, and the staff can repair or replace the abnormal temperature sensor in time. In addition, during the process of repairing or replacing the abnormally working temperature sensor, the oil temperature in the device under test can also be monitored to ensure that the oil temperature in the device under test can be monitored throughout the process. However, when two temperature sensors are set on the device under test, the sealing method of the temperature sensor in the prior art requires that two installation ports for installing the temperature sensors be set on the surface of the device under test. The temperature sensors on the two temperature sensor installation ports are likely to have oil leakage from the sealing ring, which will further increase the risk of oil leakage in the device under test after the temperature sensors are installed. Utility Model Content

[0003] In order to solve the deficiencies of the prior art problems, the utility model provides an oil leakage-proof double-branch temperature sensor sealing device. The sealing device in this scheme only needs to open an installation port on the device under test during installation and does not need to use a sealing ring to seal the temperature sensor, which can further reduce the risk of penetration and leakage after the double-branch temperature sensor is installed on the device under test.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an oil leakage-proof double-branch temperature sensor sealing device, including a distribution head and a sealing part for the temperature sensor to pass through, the distribution head is a hollow inner cavity, one end of the distribution head is used to connect with the device to be measured, and two internal thread mounting holes are provided on the end face of the other end, and each internal thread mounting hole has a sealing part connected thereto. The sealing part includes a double-thread head, a conical sealing sleeve and a clamping nut, and the double-thread head, the conical sealing sleeve and the clamping nut are all provided with through holes for the temperature sensor to pass through, one end of the double-thread head is connected to the internal thread mounting hole, and the other end is threadedly connected to the clamping nut, the end face of the double-thread head connected to the clamping nut and the conical surface of the conical sealing sleeve are in contact, and the conical sealing sleeve is located in the inner cavity of the clamping nut and is clamped by the clamping nut.

[0005] When installing the device, first pass the temperature sensor through the clamping nut, the conical sealing sleeve and the double-thread head in sequence. At this time, the inner wall of the conical sealing sleeve fits the outer surface of the temperature sensor. Then tighten the clamping nut on the double-thread head. At this time, the conical side wall of the conical sealing sleeve fits tightly with the conical surface of the double-thread head, and under the extrusion of the clamping nut, the conical sealing sleeve has a tendency to move into the conical surface of the double-thread head, so that the conical end surface of the conical sealing sleeve squeezes the temperature sensor, reducing the gap between the conical sealing sleeve and the outer surface of the temperature sensor and the gap between the outer surface of the conical sealing sleeve and the conical surface of the double-thread head. After the clamping nut is locked on the double-thread head, the two double-thread heads are connected to the distribution head, and finally the distribution head is connected to the device under test. After the distribution head is connected to the device under test, the high-temperature oil in the device under test flows along the distribution head into the inner cavity of the double-thread head, and the two temperature sensors on the double-thread head measure the temperature of the oil in the device under test. The staff can judge whether the oil temperature in the tested equipment is within the normal range based on the readings of the two temperature sensors.

[0006] The anti-leakage double-branch temperature sensor sealing device in this solution integrates two temperature sensors together through a distribution head. Only one mounting hole needs to be opened on the device under test, which has a lower probability of oil leakage than opening two mounting holes. The temperature sensor is also sealed by extruding a conical sealing sleeve, which can further reduce the probability of oil leakage after the device under test is installed with double-branch sensors. In addition, the device uses a threaded connection to connect the components, which has good sealing performance, high connection strength and is easy to disassemble.

[0007] Preferably, it also includes a connector, one end of which is used to connect to the device under test, and the other end is threadedly connected to the distribution head. The distribution head is connected to the device under test through the connector, and the end of the connector inner cavity used to connect to the device under test is the installation end, and the diameter of the installation end inner cavity is 2.8-3.2 times the diameter of the temperature sensor. The end of the distribution head connected to the connector is the connection end, and the side wall of the inner cavity of the connection end is an inclined side wall, and the end of the inclined side wall close to the double-wire head is inclined toward the axis direction of the connector. The distribution head is connected to the device under test through the connector, and the diameter of the inner cavity of the installation end of the connector is 2.8-3.2 times the diameter of the temperature sensor. The oil flowing into the inner cavity of the distribution head through the inner cavity of the installation end is restricted, which preliminarily reduces the oil pressure in the inner cavity of the distribution head and reduces the probability of oil leakage along the side wall of the temperature sensor. The side wall of the inner cavity of the distribution head connection end is an inclined side wall, which can guide the oil flowing into the inner cavity of the distribution head, further reduce the oil pressure in the inner cavity of the distribution head, and reduce the probability of oil penetration and leakage along the side wall of the temperature sensor.

[0008] Preferably, a first sealing ring is sleeved on the connection end, and a first receiving groove for receiving the first sealing ring is provided on the connection head, and the thickness of the first sealing ring is greater than the depth of the first receiving groove. When the distribution head is threadedly connected to the connection head, the distribution head squeezes the first sealing ring into the first receiving groove. After the first sealing ring is squeezed, since the thickness of the first sealing ring is greater than the depth of the first receiving groove, the first sealing ring can further block the gap between the distribution head and the connection head, thereby preventing oil from leaking outward from the gap between the distribution head and the connection head, and reducing the probability of oil leakage after the double temperature sensors are installed on the device under test.

[0009] Preferably, on the end face of the distribution head, the two internal threaded mounting holes are arranged equidistantly around the axis of the distribution head. The two internal threaded mounting holes are arranged equidistantly around the axis of the distribution head, that is, the midpoint of the line connecting the centers of the cross-sections of the two internal threaded mounting holes is located on the axis of the distribution head, so that the oil entering the inner cavity of the distribution head can fully contact the two temperature sensors, avoiding too large a difference in the readings of the two temperature sensors due to the difference in contact area and contact position with the oil.

[0010] Preferably, a connecting hole is further provided on one end of the internal threaded mounting hole close to the inner cavity of the distribution head, and the two ends of the connecting hole are respectively connected to the inner cavity of the distribution head and the internal threaded mounting hole, and the side wall of the connecting hole is used to fit with the side wall of the temperature sensor. When the temperature sensor passes through the distribution head, in the process of the temperature sensor entering the inner cavity of the distribution head from the internal threaded mounting hole, the temperature sensor will also pass through the connecting hole, and the size of the connecting hole is the same as that of the temperature sensor, which can further prevent the oil from leaking outward along the side wall of the temperature sensor.

[0011] Preferably, a second sealing ring is sleeved on one end of the double-thread head connected to the distribution head, and a second receiving groove for receiving the second sealing ring is provided on the double-thread head, and the thickness of the second sealing ring is greater than the depth of the second receiving groove. When the double-thread head is threadedly connected to the distribution head, the double-thread head squeezes the second sealing ring into the second receiving groove. After the second sealing ring is squeezed, since the thickness of the second sealing ring is greater than the depth of the second receiving groove, the second sealing ring can further block the gap between the double-thread head and the distribution head, thereby preventing oil from leaking outward from the gap between the double-thread head and the distribution head, and reducing the probability of oil leakage after the double temperature sensor is installed on the device under test.

[0012] Preferably, an extrusion section is provided at the end with a larger diameter on the conical sealing sleeve, and the diameter of the extrusion section is the same as the maximum diameter of the conical sealing sleeve. The end face of the extrusion section abuts against the inner end face of the clamping nut to squeeze the conical sealing sleeve into the conical surface of the double thread head through the clamping nut. The conical sealing sleeve is a rubber sleeve. The setting of the extrusion section can increase the length of the conical sealing sleeve. When the clamping nut is locked with the double thread head, the clamping nut has a better extrusion effect on the conical sealing sleeve, further enhancing the sealing effect of the conical sealing sleeve. The conical sealing sleeve is a rubber sleeve, and the rubber sleeve will deform when it is stressed, so that the conical sealing sleeve can be smoothly deformed after being squeezed, fully reducing the gap between the conical sealing sleeve and the outer surface of the temperature sensor and the gap between the outer surface of the conical sealing sleeve and the conical surface of the double thread head, and reducing the probability of oil leakage after the conical sealing sleeve is sealed.

[0013] Preferably, a clamping portion is provided on the outer wall of the distribution head for clamping the distribution head for rotation, and the clamping portion is integrally formed with the distribution head. The arrangement of the clamping portion facilitates the staff to rotate the distribution head through the clamping portion and install the distribution head. The cross section of the clamping portion can be set to a square, a regular hexagon or a regular octagon, so that the staff can rotate the distribution head by a wrench.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the oil leakage-proof double-branch temperature sensor sealing device in the present solution integrates two temperature sensors together through a distribution head, and only one mounting hole needs to be opened on the device under test, which has a lower probability of oil leakage than opening two mounting holes. The temperature sensor is also sealed by extruding a conical sealing sleeve, which can further reduce the probability of oil leakage after the double-branch sensor is installed on the device under test. In addition, the components are connected by threaded connection, which has good sealing performance, high connection strength and is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an oil leakage-proof double-branch temperature sensor sealing device of the utility model;

[0016] Figure 2 It is an exploded view of an oil leakage-proof double-branch temperature sensor sealing device of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of a distribution head of an oil leakage-proof double-branch temperature sensor sealing device of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a conical sealing sleeve of an oil leakage-proof double-branch temperature sensor sealing device. DETAILED DESCRIPTION

[0019] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0022] Example 1

[0023] like Figure 1-4The figure shows an embodiment of a sealing device for a double-branch temperature sensor to prevent oil leakage, which comprises a distribution head 1 and a sealing part for a temperature sensor to pass through. The distribution head 1 is a hollow inner cavity, one end of the distribution head 1 is used to connect with the device to be measured, and the end surface of the other end is provided with two internal thread mounting holes 101, and each internal thread mounting hole 101 has a sealing part connected thereto. The sealing part comprises a double-thread head 2, a conical sealing sleeve 3 and a clamping nut 4, and the double-thread head 2, the conical sealing sleeve 3 and the clamping nut 4 are all provided with through holes for the temperature sensor to pass through, one end of the double-thread head 2 is threadedly connected to the internal thread mounting hole 101, and the other end is threadedly connected to the clamping nut 4, the end surface of the double-thread head 2 connected to the clamping nut 4 and the conical surface of the conical sealing sleeve 3 are fitted, and the conical sealing sleeve 3 is located in the inner cavity of the clamping nut 4 and is clamped by the clamping nut 4.

[0024] The working principle or working process of this scheme: When installing the device, first pass the temperature sensor through the clamping nut 4, the conical sealing sleeve 3 and the double-thread head 2 in sequence, at which time the inner wall of the conical sealing sleeve 3 fits the outer surface of the temperature sensor. Then tighten the clamping nut 4 on the double-thread head 2, at which time the conical side wall of the conical sealing sleeve 3 fits tightly with the conical surface of the double-thread head 2, and under the extrusion of the clamping nut 4, the conical sealing sleeve 3 tends to move into the conical surface of the double-thread head 2, so that the conical end face of the conical sealing sleeve 3 squeezes the temperature sensor, reducing the gap between the conical sealing sleeve 3 and the outer surface of the temperature sensor and the gap between the outer surface of the conical sealing sleeve 3 and the conical surface of the double-thread head 2. After the compression nut 4 is locked on the double-thread head 2, the two double-thread heads 2 are connected to the distribution head 1, and finally the distribution head 1 is connected to the device under test. After the distribution head 1 is connected to the device under test, the high-temperature oil in the device under test flows along the distribution head 1 into the inner cavity of the double-thread head 2, and the two temperature sensors on the double-thread head 2 measure the temperature of the oil in the device under test. The staff can judge whether the oil temperature in the device under test is within the normal range based on the readings of the two temperature sensors.

[0025] Beneficial effects of this embodiment: The anti-leakage double-branch temperature sensor sealing device in this solution integrates two temperature sensors together through the distribution head 1, and only one mounting hole needs to be opened on the device under test, which has a lower probability of oil leakage than opening two mounting holes. The temperature sensor is also sealed by extruding a conical sealing sleeve 3, which can further reduce the probability of oil leakage after the device under test is installed with the double-branch sensor. In addition, the device uses a threaded connection to connect the components, which has good sealing performance, high connection strength and is easy to disassemble.

[0026] Example 2

[0027] Embodiment 2 of an oil leakage-proof double-branch temperature sensor sealing device, based on embodiment 1, as Figure 1-3 As shown, a connector 5 is also included.

[0028] Specifically, one end of the connector 5 is connected to the device under test, and the other end is threadedly connected to the distribution head 1. The distribution head 1 is connected to the device under test through the connector 5. The end of the inner cavity of the connector 5 used to connect to the device under test is the installation end 501. The diameter of the inner cavity of the installation end 501 is 2.8-3.2 times the diameter of the temperature sensor. The end of the distribution head 1 connected to the connector 5 is the connection end 102. The side wall of the inner cavity of the connection end 102 is an inclined side wall. The end of the inclined side wall close to the double wire head 2 is inclined toward the axis direction of the connector 5.

[0029] Specifically, the connecting end 102 is sleeved with a first sealing ring 6 , and the connecting head 5 is provided with a first receiving groove 502 for receiving the first sealing ring 6 . The thickness of the first sealing ring 6 is greater than the depth of the first receiving groove 502 .

[0030] The beneficial effects of this embodiment are as follows: the distribution head 1 is connected to the device under test through the connector 5. The diameter of the inner cavity of the mounting end 501 on the connector 5 is 2.8-3.2 times the diameter of the temperature sensor. The oil flowing into the inner cavity of the distribution head 1 through the inner cavity of the mounting end 501 is restricted in flow, which preliminarily reduces the oil pressure in the inner cavity of the distribution head 1 and reduces the probability of oil leakage along the side wall of the temperature sensor. The side wall of the inner cavity of the connecting end 102 of the distribution head 1 is an inclined side wall, which can guide the oil flowing into the inner cavity of the distribution head 1, further reducing the oil pressure in the inner cavity of the distribution head 1 and reducing the probability of oil leakage along the side wall of the temperature sensor. The provision of the first sealing ring 6 can further block the gap between the distribution head 1 and the connector 5, avoiding the situation where oil leaks outward from the gap between the distribution head 1 and the connector 5, and reducing the probability of oil leakage after the device under test is installed with double temperature sensors.

[0031] Example 3

[0032] An embodiment of an oil leakage-proof double-branch temperature sensor sealing device, based on Embodiment 1 and Embodiment 2, as Figure 1-4 As shown, other structures of the device are further defined.

[0033] Specifically, on the end surface of the distribution head 1, two internal thread mounting holes 101 are arranged equidistantly in a circle with the axis of the distribution head 1 as the center.

[0034] Specifically, a connecting hole 103 is provided on one end of the internal threaded mounting hole 101 close to the inner cavity of the distribution head 1. The two ends of the connecting hole 103 are respectively connected to the inner cavity of the distribution head 1 and the internal threaded mounting hole 101. The side wall of the connecting hole 103 is used to fit with the side wall of the temperature sensor.

[0035] Specifically, one end of the double-wire head 2 connected to the distribution head 1 is also sleeved with a second sealing ring 7 , and a second accommodating groove 104 for accommodating the second sealing ring 7 is provided on the double-wire head 2 , and the thickness of the second sealing ring 7 is greater than the depth of the second accommodating groove 104 .

[0036] Specifically, an extrusion section 301 is provided at the end with a larger diameter of the conical sealing sleeve 3, and the diameter of the extrusion section 301 is the same as the maximum diameter of the conical sealing sleeve 3. The end surface of the extrusion section 301 abuts against the inner end surface of the clamping nut 4 to extrude the conical sealing sleeve 3 into the conical surface of the double-thread head 2 through the clamping nut 4. The conical sealing sleeve 3 is a rubber sleeve.

[0037] Specifically, a clamping portion 105 for clamping the dispensing head 1 for rotation is provided on the outer side wall of the dispensing head 1 . The clamping portion 105 is integrally formed with the dispensing head 1 , and the cross-sectional shape of the clamping portion 105 perpendicular to the dispensing head 1 is a regular hexagon.

[0038] Beneficial effects of this embodiment: The two internal threaded mounting holes 101 are arranged equidistantly in a circle with the axis of the distribution head 1 as the center, so that the oil entering the inner cavity of the distribution head 1 can fully contact the two temperature sensors, avoiding the difference in the readings of the two temperature sensors due to the difference in contact area and contact position with the oil. The setting of the connecting hole 103 can further prevent the oil from leaking outward along the side wall of the temperature sensor. The setting of the second sealing ring 7 can block the gap between the double-thread head 2 and the distribution head 1, avoiding the situation where the oil penetrates and leaks outward from the gap between the double-thread head 2 and the distribution head 1. The setting of the extrusion section 301 can increase the length of the conical sealing sleeve 3. When the clamping nut 4 is locked with the double-thread head 2, the clamping nut 4 has a better extrusion effect on the conical sealing sleeve 3, further enhancing the sealing effect of the conical sealing sleeve 3. The conical sealing sleeve 3 is a rubber sleeve that is deformed by force. After being squeezed, the conical sealing sleeve 3 can further move into the conical side of the double-wire head 2 to squeeze the temperature sensor, thereby enhancing the sealing effect of the conical sealing sleeve 3. The arrangement of the clamping portion 105 makes it easy for the staff to rotate the distribution head 1 through the clamping portion 105 to install the distribution head 1.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An oil leakage-proof double-branch temperature sensor sealing device, characterized in that: The invention comprises a distribution head (1) and a sealing portion for allowing a temperature sensor to pass through, wherein the distribution head (1) is a hollow inner cavity, one end of the distribution head (1) is used to connect to a device to be tested, and the end surface of the other end is provided with two internal thread mounting holes (101), and each of the internal thread mounting holes (101) is provided with a sealing portion connected thereto. The sealing part comprises a double thread head (2), a conical sealing sleeve (3) and a clamping nut (4); one end of the double thread head (2) is connected to the internal thread mounting hole (101), and the other end is threadedly connected to the clamping nut (4); the end surface of the double thread head (2) connected to the clamping nut (4) is in contact with the conical surface of the conical sealing sleeve (3); the conical sealing sleeve (3) is located in the inner cavity of the clamping nut (4) and is clamped by the clamping nut (4).

2. The oil leakage-proof double-branch temperature sensor sealing device according to claim 1 is characterized in that: It also comprises a connector (5), one end of which is used to connect to the device under test, and the other end of which is threadedly connected to the distribution head (1), and the distribution head (1) is connected to the device under test through the connector (5). One end of the inner cavity of the connector (5) used for connecting to the device under test is the mounting end (501), and the diameter of the inner cavity of the mounting end (501) is 2.8-3.2 times the diameter of the temperature sensor.

3. The oil leakage-proof double-branch temperature sensor sealing device according to claim 2 is characterized in that: The end of the distribution head (1) connected to the connecting head (5) is a connecting end (102), and the side wall of the inner cavity of the connecting end (102) is an inclined side wall, and the end of the inclined side wall close to the double-wire head (2) is inclined in a direction away from the axis of the connecting head (5).

4. The oil leakage-proof double-branch temperature sensor sealing device according to claim 3 is characterized in that: A first sealing ring (6) is sleeved on the connecting end (102), and a first receiving groove (502) for receiving the first sealing ring (6) is provided on the connecting head (5), wherein the thickness of the first sealing ring (6) is greater than the depth of the first receiving groove (502).

5. The oil leakage-proof double-branch temperature sensor sealing device according to claim 1, characterized in that: On the end surface of the distribution head (1), the two internal thread mounting holes (101) are arranged equidistantly in a circle with the axis of the distribution head (1) as the center.

6. The oil leakage-proof double-branch temperature sensor sealing device according to claim 5, characterized in that: A connecting hole (103) is also provided on one end of the internal threaded mounting hole (101) close to the inner cavity of the distribution head (1), and the two ends of the connecting hole (103) are respectively connected to the inner cavity of the distribution head (1) and the internal threaded mounting hole (101), and the side wall of the connecting hole (103) is used to fit with the side wall of the temperature sensor.

7. The oil leakage-proof double-branch temperature sensor sealing device according to claim 1, characterized in that: A second sealing ring (7) is also sleeved on one end of the double-wire head (2) connected to the distribution head (1), and a second receiving groove (104) for receiving the second sealing ring (7) is provided on the double-wire head (2), and the thickness of the second sealing ring (7) is greater than the depth of the second receiving groove (104).

8. The oil leakage-proof double-branch temperature sensor sealing device according to claim 1, characterized in that: An extrusion section (301) is provided on the end with a larger diameter on the conical sealing sleeve (3), and the diameter of the extrusion section (301) is the same as the maximum diameter of the conical sealing sleeve (3). The end face of the extrusion section (301) abuts against the inner end face of the clamping nut (4) so ​​as to extrude the conical sealing sleeve (3) into the conical surface of the double-thread head (2) through the clamping nut (4).

9. The oil leakage-proof double-branch temperature sensor sealing device according to claim 8, characterized in that: The conical sealing sleeve (3) is a rubber sleeve.

10. The oil leakage-proof double-branch temperature sensor sealing device according to claim 1, characterized in that: A clamping portion (105) is provided on the outer side wall of the dispensing head (1) for clamping the dispensing head (1) for rotation; the clamping portion (105) and the dispensing head (1) are integrally formed.

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