Quick-release temperature sensor

Abstract

The utility model discloses a quick-release temperature sensor, which comprises a mounting seat, a mounting shell is axially arranged in the mounting seat in a sliding manner, and a thermistor is arranged at the bottom end of the mounting shell; a shell clamping piece is arranged at the top end of the mounting seat so as to clamp and fix the mounting shell; a clamping piece is axially arranged on the outer side of the bottom end of the mounting seat in a sliding manner, a clamping groove is formed in the side wall of the clamping piece, and a spring for axially jacking the clamping piece is arranged between the clamping piece and the thermistor; the quick-release type temperature sensor can be conveniently and quickly disassembled and assembled on the oil tank, the depth of the temperature measuring end extending into the oil tank can be flexibly and conveniently adjusted, and the use compatibility of the quick-release type temperature sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature sensors and relates to a quick-release temperature sensor. Background Art

[0002] In the field of fuel temperature measurement, most of the existing temperature sensors are installed on the fuel tank through flanges and screws. When installing and removing the temperature sensor, several screws need to be removed in sequence, which takes a long time to install and remove, especially in a narrow installation environment, further reducing the installation and removal efficiency of the temperature sensor. At the same time, once the existing temperature sensor is fixed on the fuel tank, the depth of its temperature measuring end extending into the fuel tank is also fixed. However, with the different specifications of the fuel tank and the different fuel levels in the fuel tank, the existing temperature sensors cannot be well compatible.

[0003] Therefore, in view of the defects of the existing fuel temperature sensor, such as the inconvenience of disassembly and assembly, and the inability to adjust the depth of the temperature measuring end extending into the fuel tank, the utility model discloses a quick-release temperature sensor. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-release temperature sensor, which can be conveniently and quickly disassembled and assembled on the oil tank, and can flexibly and conveniently adjust the depth of the temperature measuring end extending into the interior of the oil tank, thereby improving the use compatibility of the quick-release temperature sensor.

[0005] The utility model is realized by the following technical solutions:

[0006] A quick-release temperature sensor comprises a mounting seat, wherein a mounting shell is axially slidably arranged inside the mounting seat, and a thermistor is arranged at the bottom end of the mounting shell; a shell clamp is arranged at the top end of the mounting seat to clamp and fix the mounting shell; a clamping piece is movably arranged at the outer side of the bottom end of the mounting seat, a clamping groove is arranged on the side wall of the clamping piece, and a spring is arranged between the clamping piece and the thermistor to axially tighten the clamping piece.

[0007] The mounting seat is fixed on the oil tank by a clamping piece. When the housing clamp is released, the mounting housing can slide axially relative to the mounting seat, and the bottom end of the mounting housing extends to the inside of the oil tank. The mounting housing is axially slid to adjust the depth of the thermistor at the bottom end of the mounting housing extending into the inside of the oil tank. The housing clamp is tightened, and the mounting housing is clamped and fixed by the housing clamp, so that the mounting housing cannot slide axially relative to the mounting seat, thereby fixing the installation depth of the thermistor inside the oil tank. At the same time, the clamp is set at the bottom of the mounting seat for axial sliding and circumferential rotation relative to the mounting seat. By sliding and rotating the clamp, the groove on the side wall of the clamp is engaged with the positioning pin on the oil tank, so that the mounting seat is installed and fixed on the oil tank. At the same time, the spring provides elastic force to the clamp, so that the groove is tightly engaged with the positioning pin, ensuring the stability of the mounting seat on the oil tank.

[0008] In order to better implement the utility model, further, a socket is arranged at the top of the installation shell, a cable is arranged inside the installation shell, and the socket is connected to the thermistor through the cable.

[0009] In order to better realize the utility model, further, the shell clamping part includes a clamping elastic flap sleeve and a clamping nut. The clamping elastic flap sleeve is arranged at the top of the mounting seat, and the clamping elastic flap sleeve is arranged on the outside of the top of the mounting shell, and the outside of the clamping elastic flap sleeve is provided with a pressure inclined surface; the clamping nut is threadedly screwed on the top of the mounting seat, and the inside of the clamping nut is provided with an extrusion inclined surface that radially extrudes the pressure inclined surface.

[0010] In order to better realize the utility model, further, a sealing ring is arranged on the clamping surface on the inner side of the clamping elastic valve sleeve.

[0011] In order to better realize the utility model, further, the locking part includes a positioning nut and a locking sleeve. The positioning nut is movably sleeved on the outside of the bottom end of the mounting seat, the bottom end of the positioning nut is provided with a locking sleeve, and at least one locking groove is provided on the side wall of the locking sleeve; a spring is provided between the bottom end of the positioning nut and the thermistor and is sleeved on the outside of the mounting shell.

[0012] In order to better implement the utility model, further, the card slot is a U-shaped card slot.

[0013] In order to better implement the utility model, further, a resistor mounting seat is arranged at the bottom end of the mounting shell, a thermistor is arranged at the bottom of the resistor mounting seat, and a spring is arranged between the top of the resistor mounting seat and the bottom end of the positioning nut.

[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0015] (1) The utility model provides an installation housing for axial sliding inside the installation seat, and provides a housing clamping piece on the top of the installation seat. When the housing clamping piece is loosened, the installation housing can be axially slid relative to the installation seat, thereby adjusting the depth of the thermistor at the bottom of the installation housing extending into the oil tank, thereby improving the use compatibility of the quick-release temperature sensor and facilitating the convenient disassembly of the installation housing and the thermistor.

[0016] (2) The utility model movably installs a clamping member at the bottom of the mounting seat, and provides a clamping groove on the side wall of the clamping member. The clamping member is rotated circumferentially and axially slid so that the clamping groove on the side wall of the clamping member is engaged with the positioning pin on the oil tank, thereby realizing convenient fixing of the quick-release temperature sensor on the oil tank. When the quick-release temperature sensor needs to be removed, it is only necessary to rotate and slide the clamping member in the opposite direction so that the positioning pin is disengaged from the clamping groove, and the quick-release temperature sensor can be conveniently and quickly removed from the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a quick-release temperature sensor;

[0018] Figure 2 is a schematic diagram of the structure of the housing clamp;

[0019] Figure 3 is a structural schematic diagram of a clamping member;

[0020] Figure 4 It is a schematic diagram of the engagement between the slot and the locating pin on the fuel tank.

[0021] Among them: 1-mounting seat; 2-mounting shell; 3-thermistor; 4-shell clamping piece; 5-clamping piece; 6-slot; 7-spring; 8-socket; 21-resistance mounting seat; 41-clamping elastic valve sleeve; 42-clamping nut; 51-positioning nut; 52-clamping sleeve. DETAILED DESCRIPTION

[0022] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component 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.

[0025] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] Embodiment 1:

[0027] A quick-release temperature sensor of this embodiment, such as Figure 1 As shown, it includes a mounting seat 1, an mounting shell 2 is axially slidably arranged inside the mounting seat 1, and a thermistor 3 is arranged at the bottom end of the mounting shell 2; a shell clamping member 4 is arranged at the top end of the mounting seat 1 to clamp and fix the mounting shell 2; a clamping member 5 is movably arranged on the outer side of the bottom end of the mounting seat 1, a clamping groove 6 is arranged on the side wall of the clamping member 5, and a spring 7 is arranged between the clamping member 5 and the thermistor 3 to axially tighten the clamping member 5.

[0028] An axial mounting hole is provided inside the mounting seat 1, and a mounting housing 2 is axially slidably mounted in the axial mounting hole, so that the mounting housing 2 can slide axially relative to the mounting seat 1. The bottom end of the mounting housing 2 extends downward to the inside of the fuel tank and is mounted with a thermistor 3. When the temperature of the fuel inside the fuel tank changes, the resistance value of the thermistor 3 will change. The thermistor 3 is connected to an external resistance detection circuit or resistance detector through a cable arranged inside the mounting housing 2. By monitoring the resistance change of the thermistor 3, the temperature of the fuel inside the fuel tank can be calculated.

[0029] A housing clamp 4 is provided on the top of the mounting seat 1. When the housing clamp 4 is loosened, the mounting housing 2 can slide axially relative to the mounting seat 1 to adjust the depth of the thermistor 3 extending into the fuel tank, ensuring that the thermistor 3 is fully in contact with the fuel inside the fuel tank. When the housing clamp 4 is tightened, the outer side of the mounting housing 2 can be radially clamped, thereby fixing the mounting housing 2. At this time, the mounting housing 2 cannot slide axially relative to the mounting seat 1, thereby fixing the depth of the thermistor 3 inside the fuel tank.

[0030] The bottom of the mounting seat 1 is movably provided with a clamping member 5, where the movability means that the clamping member 5 can slide axially and rotate circumferentially relative to the mounting seat 1. A clamping groove 6 is provided on the side wall of the clamping member 5 corresponding to the positioning pin on the surface of the oil tank. By sliding and rotating the clamping member 5, the positioning pin is inserted into the inside of the clamping groove 6, and the mounting seat 1 is fixed to the oil tank through the clamping member 5 through the corresponding clamping of the positioning pin and the clamping groove 6. In order to improve the stability of the mounting seat 1, the spring 7 provides elastic force to the clamping member 5, and this elastic force makes the clamping groove 6 and the positioning pin tightly engage.

[0031] When the quick-release temperature sensor needs to be disassembled, it is only necessary to slide the engaging member 5, and the spring 7 is compressed to make the positioning pin disengage from the slot 6, and then the mounting seat 1 can be conveniently disassembled. At the same time, after the housing clamping member 4 is loosened, the mounting housing 2 can be conveniently taken out from the axial mounting hole of the mounting seat 1.

[0032] Embodiment 2:

[0033] A quick-release temperature sensor is improved on the basis of Example 1, such as Figure 1 As shown, a socket 8 is disposed at the top of the mounting housing 2 , a cable is disposed inside the mounting housing 8 , and the socket 8 is connected to the thermistor 3 through the cable.

[0034] The socket 8 is conveniently connected to an external resistance detection circuit or a resistance detector, so that the resistance value of the thermistor 3 can be read efficiently and intuitively, and the temperature of the fuel inside the fuel tank can be calculated through the change in the resistance value of the thermistor 3.

[0035] Furthermore, the thermistor 3 is a PT1000 thermistor.

[0036] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0037] Embodiment 3:

[0038] A quick-release temperature sensor, improved on the basis of embodiment 1 or 2, such as Figure 2 As shown, the shell clamping member 4 includes a clamping elastic flap sleeve 41 and a clamping nut 42. The clamping elastic flap sleeve 41 is arranged at the top end of the mounting seat 1, and the clamping elastic flap sleeve 41 is sleeved on the outside of the top end of the mounting shell 2, and the outside of the clamping elastic flap sleeve 41 is provided with a pressure inclined surface; the clamping nut 42 is threadedly screwed on the top end of the mounting seat 1, and the inside of the clamping nut 42 is provided with an extrusion inclined surface that radially extrudes the pressure inclined surface.

[0039] The top outer side of the mounting seat 1 is provided with an external thread, and the internal thread hole of the clamping nut 42 is matched and connected with the external thread. By rotating the clamping nut 42 clockwise, the clamping nut 42 moves downward, so that the extrusion inclined surface inside the clamping nut 42 squeezes the pressure inclined surface outside the clamping elastic flap sleeve 41, thereby causing the clamping elastic flap sleeve 41 to contract radially to clamp and fix the mounting shell 2. By rotating the clamping nut 42 counterclockwise, the clamping nut 42 moves upward, so that the extrusion inclined surface inside the clamping nut 42 no longer squeezes the pressure inclined surface outside the clamping elastic flap sleeve 41, thereby causing the clamping elastic flap sleeve 41 to expand radially under its own elastic force to loosen the mounting shell 2, and the mounting shell 2 can be axially slidable at this time.

[0040] Furthermore, a sealing ring is provided on the clamping surface on the inner side of the clamping elastic flap sleeve 41. When the clamping elastic flap sleeve 41 contracts radially, the sealing ring is driven to fit tightly against the outer side surface of the mounting shell 2 to achieve sealing, thereby effectively preventing external impurities from entering the oil tank through the gap between the clamping elastic flap sleeve 41 and the mounting shell 2.

[0041] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0042] Embodiment 4:

[0043] A quick-release temperature sensor, improved on the basis of any one of embodiments 1-3, such as Figure 3 and Figure 4 As shown, the locking member 5 includes a positioning nut 51 and a locking sleeve 52. The positioning nut 51 is movably sleeved on the outer side of the bottom end of the mounting seat 1. The bottom end of the positioning nut 51 is provided with a locking sleeve 52, and the side wall of the locking sleeve 52 is provided with at least one locking groove 6; a spring 7 sleeved on the outside of the mounting shell 2 is provided between the bottom end of the positioning nut 51 and the thermistor 3.

[0044] The positioning nut 51 is rotated to drive the engaging sleeve 52 to rotate, so that the slot 6 is aligned with the positioning pin on the oil tank, and then the positioning nut 51 is axially slid downward to drive the engaging sleeve 52 to move downward. At this time, the spring 7 is compressed, so that the positioning pin enters the slot 6. Then the positioning nut 51 is reversely rotated to drive the engaging sleeve 52 to rotate reversely, so that the positioning pin is completely engaged with the slot 6. After the external force is removed, the spring 7 provides an upward elastic force to the positioning nut 51, thereby ensuring that the positioning pin is firmly engaged in the slot 6 and preventing the positioning pin from falling out of the slot 6.

[0045] Furthermore, the slot 6 is a U-shaped slot.

[0046] The other parts of this embodiment are the same as those of Embodiment 4, so they will not be described in detail.

[0047] Embodiment 5:

[0048] A quick-release temperature sensor, improved on the basis of any one of embodiments 1-4, such as Figure 1 As shown, a resistor mounting seat 21 is disposed at the bottom of the mounting housing 2 , a thermistor 3 is disposed at the bottom of the resistor mounting seat 21 , and a spring 7 is disposed between the top of the resistor mounting seat 21 and the bottom of the positioning nut 51 .

[0049] The top end of the spring 7 contacts the bottom end surface of the positioning nut 51, and the bottom end of the spring 7 contacts the top end surface of the resistor mounting seat 21. When the positioning nut 51 slides axially downward, the spring 7 is compressed. After the external force is removed, the spring 7 rebounds under the support of the resistor mounting seat 21 to provide an upward elastic force to the positioning nut 51.

[0050] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A quick-release temperature sensor, comprising a mounting seat (1), characterized in that: An installation shell (2) is axially slidably arranged inside the installation seat (1), and a thermistor (3) is arranged at the bottom end of the installation shell (2); a shell clamping member (4) is arranged at the top end of the installation seat (1) to clamp and fix the installation shell (2); a clamping member (5) is movably arranged on the outer side of the bottom end of the installation seat (1), a clamping groove (6) is arranged on the side wall of the clamping member (5), and a spring (7) is arranged between the clamping member (5) and the thermistor (3) to axially tighten the clamping member (5).

2. A quick-release temperature sensor according to claim 1, characterized in that: A socket (8) is provided at the top of the installation shell (2), a cable is provided inside the installation shell (2), and the socket (8) is connected to the thermistor (3) via the cable.

3. A quick-release temperature sensor according to claim 2, characterized in that: The shell clamping member (4) comprises a clamping elastic flap sleeve (41) and a clamping nut (42); the clamping elastic flap sleeve (41) is arranged at the top end of the mounting seat (1), and the clamping elastic flap sleeve (41) is sleeved on the outside of the top end of the mounting shell (2); the outside of the clamping elastic flap sleeve (41) is provided with a pressure inclined surface; the clamping nut (42) is threadedly screwed on the top end of the mounting seat (1), and the inside of the clamping nut (42) is provided with an extrusion inclined surface that radially extrudes the pressure inclined surface.

4. A quick-release temperature sensor according to claim 3, characterized in that: A sealing ring is provided on the clamping surface on the inner side of the clamping elastic valve sleeve (41).

5. A quick-release temperature sensor according to any one of claims 1 to 4, characterized in that: The engaging member (5) comprises a positioning nut (51) and a locking sleeve (52); the positioning nut (51) is movably sleeved on the outside of the bottom end of the mounting seat (1); the bottom end of the positioning nut (51) is provided with a locking sleeve (52); and the side wall of the locking sleeve (52) is provided with at least one locking groove (6); a spring (7) sleeved on the outside of the mounting housing (2) is provided between the bottom end of the positioning nut (51) and the thermistor (3).

6. A quick-release temperature sensor according to claim 5, characterized in that: The card slot (6) is a U-shaped card slot.

7. A quick-release temperature sensor according to claim 6, characterized in that: A resistor mounting seat (21) is arranged at the bottom end of the mounting shell (2), a thermistor (3) is arranged at the bottom of the resistor mounting seat (21), and a spring (7) is arranged between the top of the resistor mounting seat (21) and the bottom end of the positioning nut (51).

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