Sealing structure for thermometer shell

Abstract

The utility model discloses a sealing structure for a thermometer shell, which comprises an instrument shell arranged on the outer side of a thermometer instrument, and a wire outlet groove is arranged on the surface of the instrument shell; the sealing shell cover is connected with the instrument shell in a combined manner, mounting plates which are uniformly distributed are arranged on the surface of the sealing shell cover, a sealing inner ring is arranged on the sealing shell cover, and a gear plate is fixedly connected to the surface of the sealing inner ring; the instrument shell and the sealing shell cover are installed on the outer side of the thermometer, second teeth on the gear plate are connected with first teeth on the sealing gear ring in a meshed mode, the sealing gear ring is buckled through the buckling lip edge, the gear plate and the sealing gear ring are buckled stably, the installation plate is inserted between the sealing ring and the attaching ring, the attaching ring and the inner rubber tire are extruded, and the sealing gear ring and the sealing gear ring are buckled stably. The expanded inner rubber tire is in interference fit with the sealing inner ring, and the sealing effect is achieved under the synergistic effect of the sealing ring and the attaching ring, the inner rubber tire and the sealing inner ring, and the sealing gear ring and the gear plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of temperature gauge, specifically relates to a sealing structure for temperature gauge shell. BACKGROUND

[0002] The temperature gauge is an instrument for measuring temperature, and its sealing shell is combined and composed of a sealing shell and a shell cover. Generally, the sealing shell and the shell cover are fixed by screws, and there is a joint surface between the sealing shell and the shell cover. The joint surface of the sealing shell and the shell cover is generally sealed by a sealing rubber ring. However, the sealing rubber ring may be loose or aged after long-term use, thereby reducing the sealing performance. Dust and impurities or humid water outside may enter the inside of the sealing shell and the shell cover from the joint surface. There is no stable sealing design for increasing the sealing performance of the inside of the sealing shell and the shell cover.

[0003] The sealing shell and the shell cover of the existing temperature gauge are combined, and there is no stable sealing design for increasing the sealing performance of the sealing shell and the shell cover. Therefore, the sealing structure for the temperature gauge shell is provided. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a sealing structure for a temperature gauge shell to solve the problem of the stable sealing design for increasing the sealing performance of the sealing shell and the shell cover in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sealing structure for a temperature gauge shell, comprising

[0006] An instrument shell is installed on the outside of the temperature gauge instrument, and a wire outlet groove is formed on the surface of the instrument shell.

[0007] A sealing shell cover is combined and connected with the instrument shell, and the surface of the sealing shell cover is provided with uniformly distributed mounting plates. A sealing inner ring is arranged on the sealing shell cover, and a gear plate is fixedly connected to the surface of the sealing inner ring. An integral second tooth and a fastening lip are arranged on the outer surface of the gear plate.

[0008] A sealing element comprises a sealing gear ring fixedly connected to the inner surface of the instrument shell, a sealing ring fixedly connected to the sealing gear ring, a close contact ring fixedly connected to the sealing ring, and an inner rubber tire bonded to the close contact ring by glue. The inner surface of the sealing gear ring is provided with a first tooth.

[0009] Preferably, the sealing gear ring, the sealing ring, the close contact ring and the inner rubber tire are all open circular rings, and the open positions of the sealing gear ring, the sealing ring, the close contact ring and the inner rubber tire are communicated with the wire outlet groove.

[0010] Preferably, the second teeth on the gear plate are in meshing connection with the first teeth on the sealing gear ring, the thickness of the gear plate and the sealing gear ring is the same, and the gear plate is in the shape of a circular arc.

[0011] Preferably, the sealing inner ring is opposite to the close-together ring, the plane a of the sealing ring is flush with the plane b of the close-together ring, and the plane c of the sealing inner ring is flush with the plane a of the sealing ring.

[0012] Preferably, the gap between the sealing ring and the close-together ring is in the shape of an open circular ring.

[0013] Preferably, the mounting plate is in the shape of a curved arc plate, and the side surface of the close-together ring facing the inner side wall of the sealing ring is in a curved shape.

[0014] Preferably, the inner circle diameter of the inner rubber tire is the same as the inner circle diameter of the close-together ring, and the inner rubber tire is provided with a gas cavity.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] In the utility model, the instrument shell and the sealing shell cover are installed on the outside of the temperature meter, the second teeth on the gear plate are in meshing connection with the first teeth on the sealing gear ring, the fastening lip fastens the sealing gear ring, the gear plate is stably buckled with the sealing gear ring, the mounting plate is inserted between the sealing ring and the close-together ring, the close-together ring and the inner rubber tire are extruded, the expanded inner rubber tire is in interference fit with the sealing inner ring, and the sealing effect is achieved under the cooperation of the sealing ring and the close-together ring, the inner rubber tire and the sealing inner ring, and the sealing gear ring and the gear plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a front view structural schematic view of the instrument shell of the utility model;

[0019] Figure 3 It is a structural schematic view of the B part in the utility model; Figure 2

[0020] Figure 4 It is a rear view structural schematic view of the sealing shell cover of the utility model;

[0021] Figure 5 It is a sectional view structural schematic view of the combination of the instrument shell and the sealing shell cover of the utility model;

[0022] Figure 6 It is a rear view structural schematic view of the temperature meter and the instrument shell of the utility model;

[0023] ​Figure 7 It is the three-dimensional structure schematic view of the sealing inner ring of the utility model;

[0024] Figure 8 It is the three-dimensional structure schematic view of the gear plate of the utility model;

[0025] In the figure: 1, instrument shell; 2, sealing shell cover; 3, sealing gear ring; 4, sealing ring; 5, close-together ring; 6, installation groove; 7, mounting plate; 8, gear plate; 9, inner rubber tire; 10, sealing inner ring; 11, outgoing line groove; 31, first tooth; 81, second tooth; 82, fastening lip; 91, air cavity. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1 to 8 The utility model provides a kind of technical scheme: a sealing structure for temperature table shell, including the instrument shell 1 of being installed in the outside of temperature table instrument, temperature table instrument is Figure 5The utility model discloses a sealing device for instrument, which comprises an instrument A, an instrument shell 1 installed outside the instrument A, a wire outlet slot 11 formed on the surface of the instrument shell 1, a data line in the instrument shell 1 capable of passing through the wire outlet slot 11 without affecting the passing of the data line, a sealing cover 2 combined with the instrument shell 1, the sealing cover 2 being combined with the instrument shell 1 to seal the instrument shell 1 and avoid external interference, the surface of the sealing cover 2 being provided with evenly distributed mounting plates 7, the sealing cover 2 being provided with a sealing inner ring 10, the surface of the sealing inner ring 10 being fixedly connected with a gear plate 8, the outer surface of the gear plate 8 being provided with an integrated second tooth 81 and a fastening lip 82, the sealing inner ring 10 and the gear plate 8 both having a sealing effect, the sealing inner ring 10 being inserted into the inside of a close-fitting ring 5 when the sealing cover 2 is combined with the instrument shell 1, the second tooth 81 on the gear plate 8 being meshed with the first tooth 31 on a sealing gear ring 3 to enhance the sealing property, the fastening lip 82 fastening the sealing gear ring 3 to stabilize the fastening of the gear plate 8 and the sealing gear ring 3, in addition, the mounting plates 7 can be inserted into the position between the sealing ring 4 and the close-fitting ring 5 to extrude the close-fitting ring 5 and make it tightly contact with the sealing inner ring 10, a sealing member comprising the sealing gear ring 3 fixedly connected with the inner surface of the instrument shell 1, the sealing ring 4 fixedly connected with the sealing gear ring 3, the close-fitting ring 5 fixedly connected with the sealing ring 4, the inner rubber tire 9 bonded with the close-fitting ring 5 by glue, the sealing ring 4 being bonded with the sealing gear ring 3 by glue, the inner surface of the sealing gear ring 3 being provided with the first tooth 31, the sealing ring 4 and the close-fitting ring 5 being installed between the sealing cover 2 and the instrument shell 1 to seal the joint surface of the sealing cover 2 and the instrument shell 1, the close-fitting ring 5 being extruded by the mounting plates 7 to extrude the inner rubber tire 9 in the inside of the close-fitting ring 5, the inner rubber tire 9 being inflated by the extrusion, the inner rubber tire 9 being in interference fit with the sealing inner ring 10 to achieve the sealing effect.

[0028] In the embodiment, the sealing gear ring 3, the sealing ring 4, the close-fitting ring 5 and the inner rubber tire 9 are all open circular rings, the open positions of the sealing gear ring 3, the sealing ring 4, the close-fitting ring 5 and the inner rubber tire 9 are communicated with the wire outlet slot 11, and the data line connected to the instrument shell 1 can pass through the wire outlet slot 11 without affecting the passing of the data line.

[0029] In the embodiment, the second tooth 81 on the gear plate 8 is meshed with the first tooth 31 on the sealing gear ring 3, the thickness of the gear plate 8 is the same as that of the sealing gear ring 3, the gear plate 8 is in the shape of a circular arc, and the second tooth 81 on the gear plate 8 is meshed with the first tooth 31 on the sealing gear ring 3 to enhance the sealing property.

[0030] In the embodiment, the sealing inner ring 10 is opposite to the close-fitting ring 5, the plane a of the sealing ring 4 is flush with the plane b of the close-fitting ring 5, the plane c of the sealing inner ring 10 is flush with the plane a of the sealing ring 4, and the sealing inner ring 10 is completely inserted into the close-fitting ring 5 when the sealing cover 2 is combined with the instrument shell 1.

[0031] In the embodiment, the gap between the sealing ring 4 and the abutting ring 5 is an installation groove 6 in the shape of an open circular ring, the installation plate 7 cooperates with the installation groove 6, the installed installation plate 7 extrudes the abutting ring 5, so that the inner rubber tire 9 is extruded and expanded, the installation plate 7 is in the shape of a curved arc plate, and the surface of the side of the abutting ring 5 facing the inner side wall of the sealing ring 4 is curved, which is beneficial to extruding the abutting ring 5 by the installation plate 7.

[0032] In the embodiment, the inner circle diameter of the inner rubber tire 9 is the same as the inner circle diameter of the abutting ring 5, the inner rubber tire 9 is provided with an air cavity 91 inside, when the installation plate 7 extrudes the abutting ring 5, the abutting ring 5 extrudes the inner rubber tire 9 to make it expand, the expanded inner rubber tire 9 is in interference fit with the sealing inner ring 10, and the sealing effect is achieved.

[0033] The working principle and use process of the utility model are as follows:

[0034] When the instrument shell 1 and the sealing shell cover 2 are combined and installed on the outside of the instrument A, the sealing shell cover 2 is attached to the instrument shell 1, the sealing inner ring 10 is completely inserted into the abutting ring 5, the second tooth 81 on the gear plate 8 is in meshing connection with the first tooth 31 on the sealing gear ring 3, the fastening lip 82 buckles the sealing gear ring 3, so that the gear plate 8 and the sealing gear ring 3 are stably buckled, at this time, the installation plate 7 is inserted into the position between the sealing ring 4 and the abutting ring 5, the installation plate 7 extrudes the abutting ring 5, the inner rubber tire 9 is extruded and expanded by the abutting ring 5, the expanded inner rubber tire 9 is in interference fit with the sealing inner ring 10, the inner rubber tire 9 and the sealing inner ring 10 are stably attached, the sealing effect is achieved, and the sealing effect is achieved under the cooperation of the sealing ring 4 and the abutting ring 5, the inner rubber tire 9 and the sealing inner ring 10, and the sealing gear ring 3 and the gear plate 8.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a temperature gauge housing, characterized in that: include An instrument housing (1) is installed on the outside of the temperature meter instrument, and a wire outlet groove (11) is opened on the surface of the instrument housing (1); A sealing cover (2) is combined with the instrument housing (1). The surface of the sealing cover (2) is provided with evenly distributed mounting plates (7). The sealing cover (2) is provided with a sealing inner ring (10). A gear plate (8) is fixedly connected to the surface of the sealing inner ring (10). The outer surface of the gear plate (8) is provided with an integral second tooth (81) and a fastening lip (82). The sealing element includes a sealing gear ring (3) fixedly connected to the inner surface of the instrument housing (1), a sealing ring (4) fixedly connected to the sealing gear ring (3), a sealing ring (5) fixedly connected to the sealing ring (4), and an inner rubber core (9) bonded to the sealing ring (5) with adhesive. The inner surface of the sealing gear ring (3) is provided with a first tooth (31).

2. The sealing structure for a temperature gauge housing according to claim 1, characterized in that: The sealing gear ring (3), sealing ring (4), sealing ring (5) and inner rubber tire (9) are all open circular rings, and the opening positions of the sealing gear ring (3), sealing ring (4), sealing ring (5) and inner rubber tire (9) are connected to the wire outlet groove (11).

3. A sealing structure for a temperature gauge housing according to claim 1, characterized in that: The second tooth (81) on the gear plate (8) meshes with the first tooth (31) on the sealing gear ring (3). The gear plate (8) and the sealing gear ring (3) have the same thickness, and the gear plate (8) is arc-shaped.

4. A sealing structure for a temperature gauge housing according to claim 1, characterized in that: The sealing inner ring (10) is opposite to the sealing ring (5), the plane a of the sealing ring (4) is flush with the plane b of the sealing ring (5), and the plane c of the sealing inner ring (10) is flush with the plane a of the sealing ring (4).

5. A sealing structure for a temperature gauge housing according to claim 1, characterized in that: The gap between the sealing ring (4) and the fitting ring (5) is an open circular ring-shaped mounting groove (6).

6. A sealing structure for a temperature gauge housing according to claim 5, characterized in that: The mounting plate (7) cooperates with the mounting groove (6). The mounting plate (7) is a curved arc shape. The side surface of the fitting ring (5) facing the inner wall of the sealing ring (4) is curved.

7. A sealing structure for a temperature gauge housing according to claim 1, characterized in that: The inner diameter of the inner rubber tire (9) is the same as the inner diameter of the sealing ring (5), and an air cavity (91) is provided inside the inner rubber tire (9).

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