Gas meter facilitating installation of sealing lead

Abstract

The utility model discloses a gas meter convenient to install a sealing lead, which belongs to the technical field of gas meters, and comprises a gas meter shell, a first through hole for the lead to pass through is arranged on the gas meter shell, a threaded column fixedly connected with the gas meter shell into a whole is arranged on the gas meter shell, the threaded column is provided with an external thread, and the external thread is provided with a first through hole for the lead to pass through and a second through hole for the lead to pass through. The threaded column is provided with a first through hole, the first through hole penetrates through the threaded column, the threaded column is in threaded connection with a sealing sleeve, the sealing sleeve is provided with a second through hole for the lead to pass through, a sealing ring matched with the first through hole is rotationally installed in the sealing sleeve, and the lead is fixedly installed on the inner circle of the sealing ring. Mounting and dismounting can be completed by rotating the sealing sleeve, mounting and dismounting steps are simplified, and mounting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas meters, and in particular relates to a gas meter which is convenient for installing a sealing lead. Background Art

[0002] When installing a gas meter, it is necessary to connect the wires inside and outside the meter case. Conventional wires are sealed with conventional gaskets where they pass through the meter case to prevent gas leakage from the meter. For example, a gas meter with sealed wires disclosed in prior art publication number CN221259987U uses a sealing plug with a tapered end that is extruded together with a sealing cover to squeeze the wires passing through the plug and cover, achieving a good sealing effect. However, when installing the wires with this technology, it is necessary to secure the sealing ring and the wires and place them in the first through-hole. The sealing plugs and sealing covers on both sides are then secured and installed in sequence, making the installation and disassembly process complicated.

[0003] Therefore, it is necessary to propose a gas meter that is easy to install a sealing lead to solve the above problems. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a gas meter that is easy to install a sealing lead, so as to solve the problem of complicated installation and removal processes of the sealing lead in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0006] The utility model provides a gas meter that is convenient for installing a sealed lead, comprising a gas meter housing, a first through hole for the lead to pass through, a threaded column fixedly connected to the gas meter housing as a whole on the gas meter housing, the threaded column being provided with an external thread, the first through hole being provided through the threaded column, a sealing sleeve being threadedly connected to the threaded column, a second through hole for the lead to pass through being provided on the sealing sleeve, a sealing ring that cooperates with the first through hole being rotatably installed in the sealing sleeve, and the lead to be fixedly installed on the inner ring of the sealing ring.

[0007] Furthermore, a plurality of trapezoidal grooves are axially arranged on the side wall of the threaded column away from the gas meter housing with the threaded column axis as the center, an annular seat is rotatably installed in the sealing sleeve, and the sealing ring is fixedly installed on the inner ring of the annular seat, and a sliding groove corresponding to the trapezoidal groove is provided on the side of the annular seat close to the threaded column, and the sliding groove is connected to the sealing ring, and an extrusion block that can slide radially along the annular seat is installed in the sliding groove, and a compression spring is fixedly connected between the extrusion block and the inner wall of the sliding groove, and a trapezoidal block is fixedly connected to the side of the extrusion block close to the trapezoidal groove, and the trapezoidal block extends a sliding groove along the axis direction of the annular seat. The cooperation of the trapezoidal block and the trapezoidal groove can enable multiple extrusion blocks to move radially along the annular seat to clamp the sealing ring.

[0008] Furthermore, a plurality of brackets corresponding to the slide grooves are fixedly provided on the threaded column near the annular seat side, and the brackets can extend into the slide grooves. A first sealing ring is provided on the plurality of brackets.

[0009] Furthermore, a second sealing ring is provided on the outer wall of the threaded column, and the threaded connection between the sealing sleeve and the threaded column enables the second sealing ring to abut between the sealing sleeve and the gas meter housing.

[0010] Furthermore, a sector plate is fixedly connected to the extrusion block near the sealing ring side.

[0011] The beneficial effects of the present invention are:

[0012] The utility model can complete installation and disassembly by rotating the sealing sleeve, thereby simplifying the installation and disassembly steps and improving the installation efficiency.

[0013] Other advantages, objectives, and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or they may be taught by those skilled in the art from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0015] Figure 1 This is a cross-sectional view of the installation of an embodiment of the utility model;

[0016] Figure 2 This is an exploded view of the installation of the sealing sleeve and the threaded column according to an embodiment of the utility model;

[0017] Figure 3 A cross-sectional view of an annular seat according to an embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of the connection between the sealing sleeve and the threaded column according to an embodiment of the utility model.

[0019] The markings in the accompanying drawings are as follows: gas meter housing 1, first through hole 101, threaded column 2, trapezoidal groove 201, bracket 202, first sealing ring 203, second sealing ring 204, sealing sleeve 3, sealing ring 301, second through hole 302, annular seat 4, slide groove 401, extrusion block 402, compression spring 403, trapezoidal block 404, sector plate 405, lead 5. DETAILED DESCRIPTION

[0020] like Figures 1 to 4As shown, the utility model provides a gas meter that is easy to install a sealed lead, comprising: a gas meter housing 1, a first through hole 101 for the lead 5 to pass through is provided on the gas meter housing 1, a threaded column 2 connected to the gas meter housing 1 as a whole is provided on the gas meter housing 1, the threaded column 2 is provided with an external thread, the first through hole 101 is provided through the threaded column 2, a sealing sleeve 3 is threadedly connected to the threaded column 2, the sealing sleeve 3 is provided with a second through hole 302 for the lead 5 to pass through, a sealing ring 301 that cooperates with the first through hole 101 is rotatably installed in the sealing sleeve 3, and the lead 5 is fixedly installed on the inner ring of the sealing ring 301.

[0021] In this solution, when installing the lead 5, first pass the lead 5 through the sealing ring 301, then align the sealing ring 301 with the first through hole 101, and rotate the sealing sleeve 3 to slide the sealing ring 301 into the first through hole 101 to achieve a sealing effect; and this solution only requires rotating the sealing sleeve 3 to complete installation and disassembly, which simplifies the installation and disassembly steps and improves installation efficiency.

[0022] In one embodiment of the present utility model, a plurality of trapezoidal grooves 201 are circumferentially arranged on the side wall of the threaded column 2 away from the gas meter housing 1 with the axis of the threaded column 2 as the center, an annular seat 4 is rotatably installed in the sealing sleeve 3, and the sealing ring 301 is fixedly installed on the inner ring of the annular seat 4, and the annular seat 4 is provided with a slide groove 401 corresponding to the trapezoidal groove 201 on the side close to the threaded column 2, and the slide groove 401 is connected to the sealing ring 301, and an extrusion block 402 that can slide radially along the annular seat 4 is installed in the slide groove 401, and a compression spring 403 is fixedly connected between the extrusion block 402 and the inner wall of the slide groove 401, and a trapezoidal block 404 is fixedly connected to the extrusion block 402 near the trapezoidal groove 201 side, and the trapezoidal block 404 extends out of the slide groove 401 along the axial direction of the annular seat 4, and the trapezoidal block 404 cooperates with the trapezoidal groove 201 to enable the multiple extrusion blocks 402 to move radially along the annular seat 4 to clamp the sealing ring 301.

[0023] In this solution, rotating the sealing sleeve 3 can move the annular seat 4 in a direction close to the threaded column 2. Before the trapezoidal block 404 is inserted into the trapezoidal groove 201, the trapezoidal block 404 is set away from the sealing ring 301 under the action of the compression spring 403. When the trapezoidal block 404 contacts the trapezoidal groove 201, the inclined edge of the trapezoidal block 404 cooperates with the inclined edge of the trapezoidal groove 201. When the annular seat 4 continues to move, the trapezoidal groove 201 can squeeze the trapezoidal block 404, thereby driving the squeezing block 402 to move in a direction close to the sealing ring 301, so that the multiple squeezing blocks 402 circumferentially arranged on the annular seat 4 clamp the sealing ring 301 to improve the sealing effect of the sealing ring 301 on the lead 5; and the above operations only need to be completed by rotating the sealing sleeve 3, thereby improving the installation efficiency.

[0024] In one embodiment of the present invention, the threaded column 2 is fixed with multiple brackets 202 corresponding to the slide groove 401 on the side close to the annular seat 4. The brackets 202 can extend into the slide groove 401, and the multiple brackets 202 are provided with a first sealing ring 203.

[0025] In this solution, by setting up the bracket 202, it is convenient to install the first sealing ring 203. By setting up the first sealing ring 203, when the annular seat 4 and the threaded column 2 are abutted, the first sealing ring 203 abuts between the annular seat 4 and the threaded column 2 to improve the sealing performance.

[0026] In one embodiment of the present invention, a second sealing ring 204 is provided on the outer wall of the threaded column 2 , and the sealing sleeve 3 is threadedly connected to the threaded column 2 so that the second sealing ring 204 abuts between the sealing sleeve 3 and the gas meter housing 1 .

[0027] In this solution, a second sealing ring 204 is provided to further improve the sealing effect.

[0028] In one embodiment of the present invention, a sector plate 405 is fixedly connected to the side of the extrusion block 402 close to the sealing ring 301 .

[0029] In this solution, sector plates 405 are provided to increase the contact area with the sealing ring 301 , thereby ensuring the clamping effect of the multiple sector plates 405 on the sealing ring 301 and improving the sealing performance.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A gas meter that is convenient for installing a sealed lead, comprising a gas meter housing, characterized in that: The gas meter housing is provided with a first through hole for the lead wire to pass through, the gas meter housing is provided with a threaded column fixedly connected to the gas meter housing as a whole, the threaded column is provided with an external thread, the first through hole is provided through the threaded column, the threaded column is threadedly connected with a sealing sleeve, the sealing sleeve is provided with a second through hole for the lead wire to pass through, a sealing ring that cooperates with the first through hole is rotatably installed in the sealing sleeve, and the lead wire is fixedly installed on the inner ring of the sealing ring.

2. The gas meter with easy installation of sealed leads according to claim 1, characterized in that: The cam is provided with a plurality of trapezoidal grooves axially centered on the axis of the threaded column on the side wall of the gas meter housing away from the threaded column, and an annular seat is rotatably installed in the sealing sleeve, and the sealing ring is fixedly installed on the inner ring of the annular seat, and the annular seat is provided with a slide groove corresponding to the trapezoidal groove one by one near the threaded column side, and the slide groove is connected to the sealing ring, and an extrusion block that can slide radially along the annular seat is installed in the slide groove, and a compression spring is fixedly connected between the extrusion block and the inner wall of the slide groove, and the extrusion block is fixedly connected to a trapezoidal block near the trapezoidal groove side, and the trapezoidal block extends a slide groove arrangement along the axis direction of the annular seat, and the trapezoidal block cooperates with the trapezoidal groove to enable multiple extrusion blocks to move radially along the annular seat to clamp the sealing ring.

3. The gas meter with easy installation of sealed leads according to claim 2, characterized in that: The threaded column is fixedly provided with a plurality of brackets corresponding to the slide grooves one by one near the annular seat side. The brackets can extend into the slide grooves, and the plurality of brackets are sleeved with first sealing rings.

4. The gas meter for facilitating installation of a sealed lead wire according to claim 3, characterized in that: The outer wall of the threaded column is sleeved with a second sealing ring, and the threaded connection between the sealing sleeve and the threaded column enables the second sealing ring to abut between the sealing sleeve and the gas meter housing.

5. The gas meter with easy installation of sealed leads according to claim 4, characterized in that: The extrusion block is fixedly connected with a sector plate on the side close to the sealing ring.

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