Anti-falling metal gasket and temperature sensor using same

Abstract

The utility model discloses an anti-falling metal gasket which comprises a gasket body made of metal, and a plurality of clamping jaws are respectively arranged on the periphery of the inner wall of the gasket body. The temperature sensor comprises a shell, the shell comprises an installation part, a nut part, a thread part and a temperature sensing part, a thermistor is installed in the temperature sensing part, the thread part is sleeved with the anti-disengaging metal gasket, all the clamping jaws define a virtual clamping jaw ring, the inner diameter of the virtual clamping jaw ring is larger than the outer diameter of the thread part, and the outer diameter of the virtual clamping jaw ring is larger than the outer diameter of the thread part. The upper surface of the anti-disengaging metal gasket is attached to the lower surface of the nut part. According to the anti-falling metal gasket, the clamping jaws are deformed after the gasket is flattened, chippings cannot appear on the upper surface and the lower surface of the gasket, the material performance of the gasket body cannot be affected, and the sealing performance of the gasket is guaranteed. The clamping jaw is connected with the temperature sensor, so that the gasket is convenient to mount and cannot fall off from the temperature sensor, and the temperature sensor is convenient to mount.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature sensors, and in particular relates to an anti-slip metal gasket and a temperature sensor using the anti-slip metal gasket. Background Art

[0002] When installing the existing automotive temperature sensor, in order to ensure the sealing, a sealing gasket is generally put on the threaded part of the temperature sensor. After the installation is completed, the sealing gasket is clamped between the nut part and the mounting seat. The existing sealing gasket is generally trumpet-shaped, that is, the diameter of the lower end is large and the diameter of the upper end is small. During installation, pressure needs to be applied to flatten the sealing gasket to play a sealing role. This type of sealing gasket will have the problem of work hardening during the flattening process, resulting in increased hardness. At the same time, debris is prone to appear at the stress point, and there is a hidden danger of sealing failure. There is also a commonly used temperature sensor installation sealing gasket, which is made of composite materials and can avoid the problems of the above-mentioned sealing gasket, but its cost is about 5 times that of ordinary metal washers. This kind of sealing gasket is directly put on the threaded part. Since the inner diameter of the sealing gasket is larger than the outer diameter of the threaded part, after the sealing gasket is installed, the sealing gasket is easy to fall off during the installation of the temperature sensor on the mounting seat, affecting production. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: an anti-slip metal gasket, including a gasket body made of metal, a plurality of claws are respectively provided around the inner wall of the gasket body, the upper ends of the claws are bent and fixedly connected to the inner wall of the gasket body, and the lower ends of the claws extend downward and extend out of the gasket body.

[0004] As a preferred embodiment of the above technical solution, the claws are arranged in a circle around the central axis of the washer body.

[0005] As a preferred embodiment of the above technical solution, the upper end of the claw is fixedly connected to the middle part of the inner wall of the gasket body.

[0006] As a preferred embodiment of the above technical solution, the claw and the washer body are integrally formed.

[0007] The temperature sensor includes a shell, which includes a mounting portion, a nut portion, a threaded portion and a temperature sensing portion fixedly connected in sequence from top to bottom, a thermistor is installed inside the temperature sensing portion, the threaded portion is covered with the above-mentioned anti-slip metal gasket, all claws form a virtual claw ring, the inner diameter of the virtual claw ring is larger than the outer diameter of the threaded portion, and the upper surface of the anti-slip metal gasket fits the lower surface of the nut portion.

[0008] As a preferred embodiment of the above technical solution, an annular groove is provided at the upper end of the threaded portion, and the distance between the inner wall of the gasket body and the bottom of the annular groove is greater than or equal to the length of the claw.

[0009] As a preferred embodiment of the above technical solution, there is a smooth transition between the groove bottom and the threaded portion of the annular groove.

[0010] The beneficial effects of the utility model are as follows: the anti-drop metal gasket of the utility model is deformed by the claws after flattening, no debris will appear on the upper and lower surfaces of the gasket, the material properties of the gasket body will not be affected, and the sealing of the gasket is guaranteed. The gasket is easy to install by connecting with the temperature sensor through the claws, and will not fall off the temperature sensor, which facilitates the installation of the temperature sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the anti-slip metal gasket

[0012] Figure 2 It is a schematic diagram of the structure before the claws are flattened;

[0013] Figure 3 It is a schematic diagram of the structure after the claws are flattened. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-3As shown, the anti-slip metal gasket includes a gasket body 1 made of metal, and a plurality of claws 2 are respectively arranged around the inner wall of the gasket body 1. The upper ends of the claws 2 are bent and fixedly connected to the inner wall of the gasket body 1, and the lower ends of the claws 2 extend downward and extend out of the gasket body 1.

[0018] Furthermore, the claws 2 are arranged in a circle around the central axis of the washer body 1 .

[0019] Furthermore, the upper end of the clamping claw 2 is fixedly connected to the middle part of the inner wall of the gasket body 1. The clamping claw 2 will not affect the sealing performance of the gasket body 1 after being flattened.

[0020] Furthermore, the claw 2 and the washer body 1 are integrally formed.

[0021] The temperature sensor includes a shell, and the shell includes a mounting portion 3, a nut portion 4, a threaded portion 5 and a temperature sensing portion 6 which are fixedly connected in sequence from top to bottom. A thermistor 7 is installed inside the temperature sensing portion 6. The threaded portion 5 is sleeved with the above-mentioned anti-slip metal washer, and all the claws 2 form a virtual claw ring. The inner diameter of the virtual claw ring is larger than the outer diameter of the threaded portion 5, and the upper surface of the anti-slip metal washer fits the lower surface of the nut portion 4. The temperature sensor is threadedly connected to the mounting seat 9 through the threaded portion 5. Before installation, the washer body 1 is sleeved on the threaded portion 5, and pressure is applied to the claws 2 to flatten the claws 2, so that the claw ring clamps the threaded portion 5 and will not fall off the threaded portion 5. After the temperature sensor is tightened by the nut portion 4, the anti-slip metal washer is clamped between the nut portion 4 and the mounting seat 9 to play a sealing role.

[0022] Furthermore, an annular groove 8 is provided at the upper end of the threaded portion 5, and the distance between the inner wall of the gasket body 1 and the bottom of the annular groove 8 is greater than or equal to the length of the claw 2. The anti-slip metal gasket is sleeved on the upper end of the threaded portion 5, and pressure is applied to the claw 2, so that the claw 2 is flattened and deeply inserted into the annular groove 8, so that the anti-slip metal gasket will not be separated from the temperature sensor.

[0023] Furthermore, the groove bottom of the annular groove 8 and the threaded portion 5 have a smooth transition. After the clamping claw 2 is pressed, the clamping claw 2 is flattened and extends into the annular groove 8, so that the anti-stripping metal gasket will not be separated from the temperature sensor, making it convenient to install the temperature sensor on the mounting seat 9.

[0024] It is worth mentioning that the technical features such as temperature sensors involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. Anti-slip metal gasket, characterized in that: The utility model comprises a gasket body made of metal. A plurality of clamping claws are respectively arranged around the inner wall of the gasket body. The upper ends of the clamping claws are bent and fixedly connected to the inner wall of the gasket body. The lower ends of the clamping claws extend downward and out of the gasket body.

2. The anti-drop metal washer according to claim 1, characterized in that: The claws are arranged in a row around the circumference of the central axis of the washer body.

3. The anti-drop metal washer according to claim 1, characterized in that: The upper end of the clamping claw is fixedly connected to the middle part of the inner wall of the gasket body.

4. The anti-drop metal washer according to claim 1, characterized in that: The clamping claw and the washer body are integrally formed.

5. A temperature sensor, characterized in that The invention comprises a shell, which comprises a mounting part, a nut part, a threaded part and a temperature sensing part which are fixedly connected in sequence from top to bottom, a thermistor is installed inside the temperature sensing part, the threaded part is sleeved with the anti-slip metal washer as claimed in claim 1, 2, 3 or 4, all claws form a virtual claw ring, the inner diameter of the virtual claw ring is larger than the outer diameter of the threaded part, and the upper surface of the anti-slip metal washer fits the lower surface of the nut part.

6. The temperature sensor according to claim 5, characterized in that An annular groove is arranged at the upper end of the threaded portion, and the distance between the inner wall of the washer body and the bottom of the annular groove is greater than or equal to the length of the claw.

7. The temperature sensor according to claim 6, characterized in that The groove bottom and the threaded portion of the annular groove have a smooth transition.

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