Gas meter flat wire sealing assembly convenient to install

Abstract

The invention discloses a gas meter flat wire sealing assembly convenient to install, and belongs to the technical field of gas meters, the gas meter flat wire sealing assembly comprises a fixing sleeve, a strip-shaped hole for a flat wire to penetrate through is formed in the fixing sleeve, and a gap is formed between the flat wire and the inner wall of the strip-shaped hole; two first mounting cavities which are symmetrically arranged relative to the strip-shaped hole are formed in the fixing sleeve in the axis direction of the strip-shaped hole, first clamping plates are slidably mounted in the first mounting cavities in a limiting mode, and first sealing gaskets are fixedly mounted on the sides, close to the flat wire, of the first clamping plates; the side, away from the flat wire, of the first clamping plate is fixedly provided with a first extrusion rod in limiting sliding connection in the fixing sleeve, and the first extrusion rod is extruded to enable the first sealing gasket to clamp the flat wire to achieve sealing. The height of the strip-shaped hole is designed to be larger than the thickness of the flat wire, the flat wire can conveniently penetrate through the strip-shaped hole, the flat wire is clamped through the first sealing gaskets on the first clamping plates on the two sides so that sealing of the flat wire can be completed, and deformation of the flat wire cannot be caused in the whole process.

Description

Technical Field

[0001] The invention belongs to the technical field of gas meters, and in particular relates to a flat wire sealing assembly for a gas meter which is easy to install. Background Art

[0002] The wiring of the smart gas meter runs through the inside and outside of the meter case; the place where the wiring passes through the meter case must have reliable sealing to prevent gas leakage inside the meter.

[0003] In the prior art, a Chinese patent with announcement number CN220731971U discloses a smart gas meter cable adapter, which can achieve sealing of the cable. However, when installing the cable, it is necessary to first expand the circular long ring sealing ring and put it on the flat wire, and then put it into the outer contour sealing ring; this process easily causes deformation of the cable and is not convenient for the installation of the cable.

[0004] Therefore, it is necessary to propose a gas meter flat wire sealing assembly that is easy to install to solve the above problems. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a gas meter flat wire sealing assembly that is easy to install, so as to solve the problem in the prior art that the gas meter flat wire is not easy to seal and install.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides a gas meter flat wire sealing assembly that is easy to install, comprising a fixing sleeve installed on a gas meter housing, the gas meter housing being provided with a through hole, the outer wall of the fixing sleeve being provided with a smooth section that matches the through hole and a threaded section that is fixedly connected to the smooth section as a whole, the fixing sleeve being provided with a strip hole for the flat wire to pass through, a gap being provided between the flat wire and the inner wall of the strip hole, two first installation cavities symmetrically arranged about the strip hole being provided in the fixing sleeve along the axial direction of the strip hole, the first installation cavity being communicated with the strip hole, a first clamping plate being limitedly and slidably installed in the first installation cavity, a first sealing gasket being fixedly installed on the first clamping plate close to the flat wire side, and a first clamping plate being fixedly connected to the first clamping plate away from the flat wire side The cam is an axially parallelogram of the first and second axial projections of the first and second axial projections, and the cam is an axially parallelogram of the first and second axial projections of the first and second axial projections. The cam is an axially parallelogram of the first and second axial projections of the first and second axial projections, and the cam is an axially parallelogram of the first and second axial projections. The cam is an axially parallelogram of the first and second axial projections, and the cam is an axially parallelogram of the first and second axial projections.

[0008] Furthermore, two second installation cavities symmetrically arranged about the center of the strip hole are arranged in the horizontal direction of the fixed sleeve, the second installation cavity is connected to the strip hole, a second clamping plate is installed in the second installation cavity for limited sliding, a second sealing gasket is fixedly installed on the second clamping plate close to the flat wire side, a second extrusion rod is fixedly connected to the second clamping plate away from the flat wire side, a second sliding hole for limited sliding of the second extrusion rod is arranged in the fixed sleeve, the second extrusion rod can extend to the outside of the fixed sleeve along the second sliding hole, a second compression spring is fixedly connected between the second clamping plate and the inner wall of the second installation cavity, and a second inclined edge is arranged on the side of the second extrusion rod away from the second clamping plate.

[0009] Furthermore, the second extrusion rod and the first extrusion rod are staggered along the axis direction of the fixing sleeve, and the second extrusion rod is located on a side of the first extrusion rod close to the boss.

[0010] Furthermore, a notch is provided on the side wall of the first clamping plate close to the second clamping plate, a third inclined edge is provided on the bottom wall of the notch of the first clamping plate, and a protrusion matching the notch is provided on the second clamping plate.

[0011] Furthermore, the first clamping plate and the second clamping plate are fixedly connected to the limit rod on the side away from the flat wire, the fixed sleeve is provided with a sliding groove for limiting the sliding of the limit rod, the sliding groove is connected to the strip hole, and the compression spring is fixedly connected between the limit rod and the inner wall of the sliding groove.

[0012] Furthermore, one of the two first sealing pads is provided with a positioning groove matched with the flat wire, and the other of the two first sealing pads is provided with a positioning protrusion matched with the positioning groove.

[0013] Furthermore, the boss and the rotating sleeve are both provided with O-rings on the side close to the gas meter housing.

[0014] The beneficial effects of the present invention are:

[0015] The present invention designs the height of the strip hole to be greater than the thickness of the flat wire, so that the flat wire can pass through the strip hole easily. During the rotation of the nut, the first sealing gaskets on the first clamping plates on both sides can clamp the flat wire to complete the sealing of the flat wire. The whole process will not cause deformation of the flat wire.

[0016] 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 those skilled in the art may be taught 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

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0018] Figure 1 It is a cross-sectional view of the installation of the sealing assembly according to an embodiment of the present invention;

[0019] Figure 2 is a cross-sectional view of a smooth section on a fixed sleeve according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the cooperation between the first clamping plate and the second clamping plate according to an embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional view of the structure of a first sealing gasket clamping a flat wire according to an embodiment of the present invention.

[0022] The markings in the accompanying drawings are as follows: fixed sleeve 1, strip hole 101, smooth section 102, threaded section 103, first installation cavity 104, first sliding hole 105, boss 106, second installation cavity 107, second sliding hole 108, flat wire 2, gas meter housing 3, through hole 301, first splint 4, first sealing gasket 401, first extrusion rod 402, first compression spring 403, first inclined edge 404, notch 405, third inclined edge 406, positioning groove 407, positioning protrusion 408, nut 5, rotating sleeve 501, second splint 6, second sealing gasket 601, second extrusion rod 602, second compression spring 603, second inclined edge 604, protrusion 605, limit rod 7, slide groove 701, O-ring 8. DETAILED DESCRIPTION

[0023] like Figures 1 to 4 As shown, the present invention provides a gas meter flat wire sealing assembly that is easy to install, including: a fixing sleeve 1 installed on a gas meter housing 3, the gas meter housing 3 is provided with a through hole 301, the outer wall of the fixing sleeve 1 is provided with a smooth section 102 that cooperates with the through hole 301 and a threaded section 103 that is fixedly connected to the smooth section 102 as a whole, the threaded section 103 is provided with an external thread, the fixing sleeve 1 is provided with a strip hole 101 for the flat wire 2 to pass through, the height of the strip hole 101 is greater than the thickness of the flat wire 2, the fixing sleeve 1 is provided with two first installation cavities 104 that are symmetrically arranged about the strip hole 101 along the axial direction of the strip hole 101, the first installation cavity 104 is communicated with the strip hole 101, a first clamping plate 4 is slidingly installed in the first installation cavity 104, a first sealing gasket 401 is fixedly installed on the first clamping plate 4 close to the flat wire 2 side, and a first extrusion gasket 4 is fixedly connected to the first clamping plate 4 away from the flat wire 2 side Rod 402, a first sliding hole 105 for limiting the sliding of the first extrusion rod 402 is provided in the fixing sleeve 1, the first extrusion rod 402 can extend to the outside of the fixing sleeve 1 along the first sliding hole 105, a first compression spring 403 is fixedly connected between the first clamping plate 4 and the inner wall of the first installation cavity 104, a first inclined edge 404 is provided on the first extrusion rod 402 away from the first clamping plate 4, a nut 5 is threadedly connected on the threaded section 103, and the nut 5 is rotatably connected with a rotating sleeve 501 coaxially arranged with the nut 5 near the smooth section 102 side, the rotating sleeve 501 is sleeved on the smooth section 102 and is limitedly slidably connected to the smooth section 102, a boss 106 is provided on the fixing sleeve 1, and the smooth section 102 is provided between the boss 106 and the threaded section 103, and rotating the nut 5 can make the rotating sleeve 501 move in the direction close to the boss 106, so that the gas meter housing 3 is clamped between the boss 106 and the rotating sleeve 501.

[0024] In the present scheme, initially, the first clamping plate 4 does not extend into the strip hole 101 under the action of the first compression spring 403, and the first extrusion rod 402 extends outside the smooth section 102; when installing the flat wire 2, first pass the flat wire 2 through the strip hole 101, and then pass the fixing sleeve 1 through the through hole 301 on the gas meter housing 3, so that the boss 106 abuts against the gas meter housing 3, at this time, the through hole 301 cooperates with the smooth section 102, and then screw the nut 5 into the threaded section 103, thereby pushing the rotating sleeve 501 to slide axially along the smooth section 102. During the sliding process of the rotating sleeve 501, the first inclined edge 404 of the first extrusion rod 402 can be squeezed, so that the first extrusion rod 402 moves in the direction close to the flat wire 2, thereby making the first clamping plates 4 on both sides of the flat wire 2 move in the direction close to the flat wire 2, so that the first sealing gasket 401 on the first clamping plate 4 clamps the flat wire 2; and the nut 5 is rotated so that the gas meter housing 3 is clamped between the boss 106 and the rotating sleeve 501 to complete the installation of the sealing assembly.

[0025] In this solution, the height of the strip hole 101 is designed to be greater than the thickness of the flat wire 2, so that the flat wire 2 can pass through the strip hole 101. During the rotation of the nut 5, the first sealing gaskets 401 on the first clamping plates 4 on both sides can clamp the flat wire 2 to complete the sealing of the flat wire 2, and the whole process will not cause deformation of the flat wire.

[0026] In one embodiment of the present invention, two second installation cavities 107 symmetrically arranged about the center of the strip hole 101 are provided in the fixed sleeve 1 along the horizontal direction of the strip hole 101, the second installation cavity 107 is communicated with the strip hole 101, a second clamping plate 6 is installed in the second installation cavity 107 for limited sliding, a second sealing gasket 601 is fixedly installed on the side of the second clamping plate 6 close to the flat wire 2, and a second extrusion rod 602 is fixedly connected to the side of the second clamping plate 6 away from the flat wire 2, a second sliding hole 108 for limited sliding of the second extrusion rod 602 is provided in the fixed sleeve 1, the second extrusion rod 602 can extend to the outside of the fixed sleeve 1 along the second sliding hole 108, a second compression spring 603 is fixedly connected between the second clamping plate 6 and the inner wall of the second installation cavity 107, and a second inclined edge 604 is provided on the side of the second extrusion rod 602 away from the second clamping plate 6.

[0027] In this solution, when the rotating nut 5 drives the rotating sleeve 501 to move axially along the smooth section 102, the rotating sleeve 501 squeezes the second inclined edge 604 of the second extrusion rod 602 so that the second extrusion rod 602 drives the second clamping plate 6 to move toward the direction close to the flat wire 2, so that the second sealing gasket 601 on the second clamping plate 6 seals both sides of the flat wire 2 in the horizontal direction, thereby ensuring the sealing of the flat wire 2.

[0028] In one embodiment of the present invention, the second extrusion rod 602 and the first extrusion rod 402 are staggered along the axis of the fixing sleeve 1 , and the second extrusion rod 602 is located on a side of the first extrusion rod 402 close to the boss 106 .

[0029] In this embodiment, when the rotating sleeve 501 moves axially along the smooth section 102, it first passes through the first squeezing rod 402 to clamp the first clamping plates 4 on both sides on both sides in the axial direction of the flat wire 2, and then passes through the second squeezing rod 602 to clamp the second clamping plates 6 on both sides on both sides in the horizontal direction of the flat wire 2, and makes the second clamping plates 6 abut against the first clamping plates 4.

[0030] In one embodiment of the present invention, a notch 405 is provided on the side wall of the first clamping plate 4 close to the second clamping plate 6 , a third inclined edge 406 is provided on the bottom wall of the notch 405 of the first clamping plate 4 , and a protrusion 605 matching the notch 405 is provided on the second clamping plate 6 .

[0031] In this solution, after the two first clamps 4 clamp the flat wire 2, the two second clamps 6 move toward the direction close to the flat wire 2, so that the protrusion 605 moves to cooperate with the notch 405. At this time, the two second clamps 6 can clamp the two first clamps 4 through the protrusion 605 to improve the stability of the sealing of the flat wire 2; and during the movement of the second clamps 6, if the first clamp 4 is not clamped tightly enough, the protrusion 605 will continue to squeeze the first clamp 4 along the third inclined edge 406 to ensure the sealing of the flat wire 2 in the axial direction.

[0032] In one embodiment of the present invention, the first clamping plate 4 and the second clamping plate 6 are both fixedly connected to the limiting rod 7 on the side away from the flat wire 2, and the fixing sleeve 1 is provided with a sliding groove 701 for limiting the sliding of the limiting rod 7, and the sliding groove 701 is connected to the strip hole 101, and a compression spring is fixedly connected between the limiting rod 7 and the inner wall of the sliding groove 701, wherein the first compression spring 403 is fixedly connected between the limiting rod 7 on the first clamping plate 4 and the corresponding sliding groove 701, and the second compression spring 603 is fixedly connected between the limiting rod 7 on the second clamping plate 6 and the corresponding sliding groove 701.

[0033] In this solution, a limiting rod 7 is provided to ensure the stability of the first clamping plate 4 and the second clamping plate 6 during the movement.

[0034] In one embodiment of the present invention, the boss 106 and the rotating sleeve 501 are both installed with an O-ring 8 near the gas meter housing 3 to ensure the sealing performance of the gas meter housing 3 after the sealing assembly is installed.

[0035] In one embodiment of the present invention, one of the two first sealing pads 401 is provided with a positioning groove 407 cooperating with the flat wire 2 , and the other of the two first sealing pads 401 is provided with a positioning protrusion 408 cooperating with the positioning groove 407 .

[0036] In this solution, when the flat wire 2 passes through the strip hole 101, the flat wire 2 is placed in the positioning groove 407 to limit the horizontal displacement of the flat wire 2 along the width direction to avoid bending of the edge of the flat wire 2 when the second clamping plate 6 clamps the flat wire 2 horizontally.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. 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 flat wire sealing assembly that is easy to install, comprising a fixing sleeve installed on a gas meter housing, characterized in that: The gas meter housing is provided with a through hole, the outer wall of the fixing sleeve is provided with a smooth section matched with the through hole and a threaded section fixedly connected to the smooth section as a whole, the fixing sleeve is provided with a strip hole for the flat wire to pass through, a gap is provided between the flat wire and the inner wall of the strip hole, two first installation cavities symmetrically arranged about the strip hole are provided in the fixing sleeve along the axial direction of the strip hole, the first installation cavity is communicated with the strip hole, a first clamping plate is limitedly slidably installed in the first installation cavity, a first sealing gasket is fixedly installed on the first clamping plate close to the flat wire side, a first extrusion rod is fixedly connected to the first clamping plate away from the flat wire side, and a first extrusion rod is provided in the fixing sleeve for the first extrusion rod. The first sliding hole of the rod limiting sliding, the first extrusion rod can extend along the first sliding hole to the outside of the fixed sleeve, the first clamping plate and the inner wall of the first installation cavity are fixedly connected with a first compression spring, the first extrusion rod is provided with a first inclined edge away from the first clamping plate, a nut is threadedly connected to the threaded section, the nut is rotatably connected with a rotating sleeve coaxially arranged with the nut close to the smooth section, the rotating sleeve is arranged on the smooth section and limitedly slidably connected to the smooth section, a boss is arranged on the fixed sleeve, the smooth section is arranged between the boss and the threaded section, and rotating the nut can make the rotating sleeve move in a direction close to the boss so that the gas meter housing is clamped between the boss and the rotating sleeve.

2. The easy-to-install gas meter flat wire sealing assembly according to claim 1, characterized in that: Two second installation cavities symmetrically arranged about the center of the strip hole are arranged in the fixed sleeve along the horizontal direction of the strip hole, the second installation cavity is connected to the strip hole, a second clamping plate is installed in the second installation cavity for limited sliding, a second sealing gasket is fixedly installed on the second clamping plate close to the flat wire side, and a second extrusion rod is fixedly connected to the second clamping plate away from the flat wire side, a second sliding hole for limited sliding of the second extrusion rod is arranged in the fixed sleeve, the second extrusion rod can extend to the outside of the fixed sleeve along the second sliding hole, a second compression spring is fixedly connected between the second clamping plate and the inner wall of the second installation cavity, and a second inclined edge is arranged on the second extrusion rod away from the second clamping plate.

3. The easy-to-install gas meter flat wire sealing assembly according to claim 2, characterized in that: The second extrusion rod and the first extrusion rod are staggered along the axis direction of the fixing sleeve, and the second extrusion rod is located on a side of the first extrusion rod close to the boss.

4. The easy-to-install flat wire sealing assembly for a gas meter according to claim 3, characterized in that: A notch is arranged on the side wall of the first clamping plate close to the second clamping plate, a third inclined edge is arranged on the bottom wall of the notch of the first clamping plate, and a protrusion matching with the notch is arranged on the second clamping plate.

5. The easy-to-install flat wire sealing assembly for a gas meter according to claim 4, characterized in that: The first clamping plate and the second clamping plate are both fixedly connected to the limit rod on the side away from the flat line. The fixed sleeve is provided with a sliding groove for limiting the sliding of the limit rod. The sliding groove is connected to the strip hole. The compression spring is fixedly connected between the limit rod and the inner wall of the sliding groove.

6. The easy-to-install flat wire sealing assembly for a gas meter according to claim 5, characterized in that: One of the two first sealing pads is provided with a positioning groove matched with the flat wire, and the other of the two first sealing pads is provided with a positioning protrusion matched with the positioning groove.

7. The easy-to-install flat wire sealing assembly for a gas meter according to claim 6, characterized in that: The boss and the rotating sleeve are both provided with O-type sealing rings on the side close to the gas meter housing.

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