CN210487836U - Waterproof joint for electric meter box - Google Patents
Waterproof joint for electric meter box Download PDFInfo
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- CN210487836U CN210487836U CN201920626684.4U CN201920626684U CN210487836U CN 210487836 U CN210487836 U CN 210487836U CN 201920626684 U CN201920626684 U CN 201920626684U CN 210487836 U CN210487836 U CN 210487836U
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- electric meter
- meter box
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Abstract
The utility model provides a waterproof joint for an electric meter box, which comprises a hollow cable chuck with openings at two ends, wherein the electric meter box is provided with an interface for communicating the inner cavity of the electric meter box with the outside of the electric meter box; the cable chuck is sleeved in the interface, one end of the cable chuck extends into the electric meter box, and the cable chuck can be arranged in a rotating mode; the side wall of the cable chuck is provided with a convex part, and the convex part is positioned in the electric meter box; the electric meter box is provided with a clamping portion, the clamping portion is provided with a clamping surface facing the inner wall of the electric meter box with an interface, and the protruding portion is screwed in between the clamping surface and the inner wall of the electric meter box with the interface along with the rotation of the cable chuck and is clamped tightly by the clamping surface and the inner wall of the electric meter box. A water joint spare part is small in quantity for ammeter case, simple to operate is efficient.
Description
Technical Field
The utility model relates to an ammeter technical field, in particular to a water joint for ammeter case.
Background
In the power supply industry, the electric meter is applied to families, China has a large population, and the household meter by one household is already realized. In order to protect the electric meter, the electric meter is generally provided with an electric meter box, and a user cable penetrates through the electric meter box and then is connected into the electric meter. When the cable is accessed, a waterproof joint is generally required to be equipped. Conventional waterproof joint comprises screwing up nut, nut cushion, cable chuck, cable rubber ring and cable nut 5 parts altogether, and the one end of cable chuck is stretched into the ammeter incasement and is established nut cushion and lock nut to the cover, and the other end quilt cover of cable chuck is established in the cable nut, just so need cup joint the nut respectively at the both ends of cable chuck, has following shortcoming: the waterproof joints have many parts, the assembly process is complicated, and the production efficiency is low; the parts are made of more materials and have high cost; the field installation is troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a simple to operate's water joint for ammeter case.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a waterproof joint for an electric meter box comprises a hollow cable chuck with openings at two ends, wherein an interface for communicating an inner cavity of the electric meter box with the outside of the electric meter box is arranged on the electric meter box;
the cable chuck is sleeved in the interface, one end of the cable chuck extends into the electric meter box, and the cable chuck can be arranged in a rotating mode;
the side wall of the cable chuck is provided with a convex part, and the convex part is positioned in the electric meter box;
the electric meter box is provided with a clamping portion, the clamping portion is provided with a clamping surface facing the inner wall of the electric meter box with an interface, and the protruding portion is screwed in between the clamping surface and the inner wall of the electric meter box with the interface along with the rotation of the cable chuck and is clamped tightly by the clamping surface and the inner wall of the electric meter box.
Furthermore, the cable chuck is divided into a first connecting portion and a second connecting portion along the axial direction, the first connecting portion is sleeved in the interface, and the shape of the longitudinal section of the inner wall of the first connecting portion is a regular hexagon.
Furthermore, the second connecting part is made of an elastic material, at least two notches are formed in the side wall of the second connecting part, and the at least two notches are arranged around the central axis of the second connecting part;
the notch extends to the opening of the second connecting part along the axial direction of the second connecting part.
Further, still include the cable rubber ring, the cable rubber ring cover is located in the second connecting portion.
Further, the cable clamp further comprises a nut, the nut is sleeved on the cable clamp and in threaded connection with the first connecting portion, a gradual change area is arranged at one end, away from the electric meter box, of the nut in the axial direction of the nut, the inner diameter of the nut located in the gradual change area gradually decreases in the direction away from the electric meter box, and the diameter of the outer wall of the second connecting portion is larger than the minimum inner diameter of the nut.
Further, the cable clamp is in threaded connection with the interface.
Furthermore, buckling part is the shape of strip structure and longitudinal section for falling L shape, the one end of buckling part links to each other with the inner wall that the ammeter case has the interface, the other end of buckling part extends the setting towards the direction that is close to the cable chuck, the surface of the other end of buckling part towards the one side that the ammeter case was equipped with the inner wall of interface is the clamping face.
Furthermore, the number of the buckling parts and the number of the protruding parts are two respectively;
the two protruding parts are symmetrically arranged, and the two buckling parts are arranged in parallel.
Furthermore, the device also comprises a positioning bulge and a positioning part;
the positioning protrusion is arranged on the side wall of the cable chuck and positioned in the electric meter box, and the length of the positioning protrusion in the radial direction of the cable chuck is greater than that of the protrusion part in the radial direction of the cable chuck;
location portion locates in the ammeter case, and the protruding orientation that is close to or keeps away from location portion along with the rotation of cable chuck is portable to be set up, when location portion and the protruding butt in location, the bellying is located between the inner wall of clamping surface and ammeter case.
The beneficial effects of the utility model reside in that: the prior art tightening nuts, nut washers, and external threads on the cable clamp corresponding to the tightening nuts are eliminated. Set up the bellying on the lateral wall of the one end that the cable chuck stretched into the ammeter case, set up block portion on the inner wall of ammeter case, accomplish the fixed of cable chuck between the inner wall of block portion and ammeter case with the bellying through the mode of rotating the cable chuck to reduce water joint's part, the cost is reduced, also need not cup joint the work of nut at the both ends of cable chuck, improved the installation effectiveness.
Drawings
Fig. 1 is a plan view of a waterproof joint for an electric meter box according to an embodiment of the present invention in an assembled state with the electric meter box;
fig. 2 is a schematic longitudinal cross-sectional view of a waterproof joint for an electric meter box according to an embodiment of the present invention in an assembled state with the electric meter box;
fig. 3 is an exploded schematic view of a waterproof joint for an electric meter box according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cable clamp of a waterproof joint for an electric meter box according to an embodiment of the present invention;
fig. 5 is a top view of a cable clamp for a watertight connector of an electric meter box according to an embodiment of the present invention;
fig. 6 is a schematic longitudinal cross-sectional view of a cable clamp for a watertight connector of an electric meter box according to an embodiment of the present invention;
description of reference numerals:
10. an electric meter box; 11. an interface; 12. a positioning part;
20. a cable clamp;
30. a first connection portion; 31. a boss portion; 32. positioning the projection;
40. a second connecting portion; 41. a notch;
50. a fastening part; 51. a clamping surface;
60. a cable rubber ring;
70. and a nut.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: the clamping part is arranged in the electric meter box, and the bulge on the cable clamp is clamped by the clamping part and the electric meter box through rotating the cable clamp, so that assembly is realized.
Referring to fig. 1-6, a waterproof joint for an electric meter box comprises a hollow cable clamp 20 with openings at two ends, wherein an interface 11 for communicating an inner cavity of the electric meter box 10 with the outside of the electric meter box 10 is arranged on the electric meter box 10 of the electric meter;
the cable clamp 20 is sleeved in the interface 11, one end of the cable clamp extends into the electric meter box 10, and the cable clamp 20 can be arranged in a rotating mode;
a convex part 31 is arranged on the side wall of the cable clamp 20, and the convex part 31 is positioned in the electric meter box 10;
be equipped with buckle portion 50 in ammeter case 10, buckle portion 50 is last to be equipped with the clamping surface 51 towards ammeter case 10 inner wall that is equipped with interface 11, and bellying 31 is along with rotation of cable chuck 20 screw in between clamping surface 51 and ammeter case 10 inner wall that is equipped with interface 11 and is pressed from both sides tightly by clamping surface 51 and ammeter case 10 inner wall.
From the above description, the beneficial effects of the present invention are: the prior art tightening nuts, nut washers, and external threads on the cable clamp corresponding to the tightening nuts are eliminated. Set up the bellying on the lateral wall of the one end that the cable chuck stretched into the ammeter case, set up block portion on the inner wall of ammeter case, accomplish the fixed of cable chuck between the inner wall of block portion and ammeter case with the bellying through the mode of rotating the cable chuck to reduce water joint's part, the cost is reduced, also need not cup joint the work of nut at the both ends of cable chuck, improved the installation effectiveness.
Further, the cable clamp 20 is axially divided into a first connecting portion 30 and a second connecting portion 40, the first connecting portion 30 is sleeved in the interface 11, and the shape of the longitudinal section of the inner wall of the first connecting portion 30 is a regular hexagon.
As can be seen from the above description, the cable clamp 20 can be removed or installed using an allen wrench.
Further, the second connecting portion 40 is made of an elastic material, at least two notches 41 are formed in a side wall of the second connecting portion 40, and the at least two notches 41 are arranged around a central axis of the second connecting portion 40;
the notch 41 extends in the axial direction of the second connecting portion 40 to the opening of the second connecting portion 40.
As can be seen from the above description, when the second connecting portion 40 is subjected to a radial force, the notch 41 will contract like a claw structure to clamp the cable inside.
Further, the cable connector further comprises a cable rubber ring 60, and the cable rubber ring 60 is sleeved in the second connecting portion 40.
As can be seen from the above description, the cable rubber ring 60 can further improve the sealing effect, and can be flexibly configured according to market demands.
Further, still include nut 70, nut 70 overlaps and locates on the cable chuck 20 and with first connecting portion 30 threaded connection, nut 70 is equipped with the gradual change district along the one end that ammeter case 10 was kept away from to self axial, and the internal diameter that lies in the nut 70 in the gradual change district diminishes along the direction of keeping away from ammeter case 10 gradually, the diameter of the outer wall of second connecting portion 40 is greater than the minimum internal diameter of nut 70.
As can be seen from the above description, when the nut 70 is rotated to move the nut 70 toward the direction close to the electric meter box 10, the inner wall of the nut 70 in the gradual change region during the movement gradually presses the second connection portion 40, so that the second connection portion 40 clamps the cable sleeved inside.
Further, the cable clamp 20 is screwed with the interface 11.
As can be seen from the above description, the threaded connection has a good sealing effect.
Further, the buckling part 50 is a strip-shaped structure, the longitudinal section of the buckling part is in an inverted L shape, one end of the buckling part 50 is connected with the inner wall of the electric meter box 10 with the interface 11, the other end of the buckling part 50 extends towards the direction close to the cable clamp 20, and the surface of the other end of the buckling part 50, which faces the side, provided with the interface 11, of the inner wall of the electric meter box 10 is a clamping surface 51.
As can be seen from the above description, the strip-shaped locking portion 50 is tangent to a concentric circle of the cable clamp 20, so that when the cable clamp 20 is rotated, the protrusion 21 is screwed into the space between the locking portion 50 and the electric meter box 10. Preferably, the distance between the clamping surface 51 and the inner wall of the electric meter box 10 where the interface 11 is disposed may gradually decrease along the axial direction of the fastening portion 50, so that when the cable clamp 20 rotates in one direction, the protrusion 21 can enter between the fastening portion 50 and the electric meter box 10, and as the cable clamp 20 rotates, the protrusion 21 is clamped more tightly.
Further, the number of the buckling parts 50 and the number of the convex parts 31 are two respectively; the two protruding portions 31 are symmetrically arranged, and the two fastening portions 50 are arranged in parallel.
As can be seen from the above description, the symmetrically arranged protrusions 31 allow the cable clamp 20 to be stressed on both sides when being fixed, so that the stress is more uniform.
Further, the positioning device also comprises a positioning bulge 32 and a positioning part 12;
the positioning protrusion 32 is arranged on the side wall of the cable clamp 20 and is positioned in the electric meter box 10, and the length of the positioning protrusion 32 in the radial direction of the cable clamp 20 is greater than the length of the protrusion part 31 in the radial direction of the cable clamp 20;
the positioning portion 12 is arranged in the electric meter box 10, the positioning protrusion 32 is movably arranged along the rotation direction of the cable clamp 20 towards the direction close to or away from the positioning portion 12, and when the positioning portion 12 abuts against the positioning protrusion 32, the protruding portion 31 is located between the clamping surface 51 and the inner wall of the electric meter box 10.
As can be seen from the above description, the assembling position of the protruding portion 21 and the buckling portion 50 can be found by the cooperation of the positioning portion 12 and the positioning protrusion 32.
Example one
Referring to fig. 1 to 6, the waterproof connector for an electric meter box of the present embodiment includes a clamping member 20, a cable rubber ring 60, and a nut 70;
as shown in fig. 4 to 6, the cable clamp 20 is a hollow structure with openings at two ends, and the cable clamp 20 is divided into a first connecting portion 30 and a second connecting portion 40 along an axial direction;
the side wall of the first connecting part 30 close to the opening of the first connecting part is provided with two protruding parts 31 and two positioning protrusions 32, the two protruding parts 31 are symmetrically arranged, the two positioning protrusions 32 are symmetrically arranged, the length of the positioning protrusions 32 along the radial direction of the cable chuck 20 is larger than that of the protruding parts 31 along the radial direction of the cable chuck 20, and the shape of the longitudinal section of the inner wall of the first connecting part 30 is a regular hexagon;
the second connecting portion 40 is made of an elastic material, at least two notches 41 are formed in the side wall of the second connecting portion 40, and the at least two notches 41 are arranged around the central axis of the second connecting portion 40; the notch 41 extends to the opening of the second connecting portion 40 along the axial direction of the second connecting portion 40;
as shown in fig. 1-3, an interface 11 is arranged on the bottom wall of an electric meter box 10 of the electric meter, the interface 11 is communicated with an inner cavity of the electric meter box 10 and the interface 11 outside the electric meter box 10, a first connecting portion 30 is in threaded connection with the interface 11, a protruding portion 31 and a positioning protrusion 32 are respectively located in the electric meter box 10, and the protruding portion 31 can be attached to the inner bottom wall of the electric meter box 10 by rotating a cable clamp 20;
the inner bottom wall of the electric meter box 10 is further provided with a positioning part 12 and two clamping parts 50, the clamping parts 50 are of strip structures, the longitudinal section of each clamping part 50 is in an inverted L shape, the two clamping parts 50 are arranged in parallel, the interface 11 and the positioning part 12 are respectively located between the two clamping parts 50, one end of each clamping part 50 is connected with the inner bottom wall of the electric meter box 10, the other end of each clamping part 50 extends towards the direction close to the cable chuck 20, and the clamping surface 51 is arranged on the surface, facing the inner bottom wall of the electric meter box 10, of the other end of each clamping part 50, provided with the interface 11;
the positioning protrusion 32 is movably disposed toward a direction approaching or separating from the positioning portion 12 along with the rotation of the cable clamp 20, and when the positioning portion 12 abuts against the positioning protrusion 32, the protrusion 31 is located between the clamping surface 51 and the inner bottom wall of the electric meter box 10 and is clamped by the clamping surface 51 and the inner wall of the electric meter box 10, so that the fixation of the cable clamp 20 is completed.
In second connecting portion 40 is located to cable rubber ring 60 cover, nut 70 cover locate on the cable chuck 20 and with first connecting portion 30 threaded connection, the one end that ammeter case 10 was kept away from along the axial of self of nut 70 is equipped with the gradual change district, and the internal diameter that is located the nut 70 in the gradual change district diminishes along the direction of keeping away from ammeter case 10 gradually, the diameter of the outer wall of second connecting portion 40 is greater than the minimum internal diameter of nut 70. In fig. 2 it can be seen that the inner wall of the nut 70 in the transition region is a cambered surface, and the inner diameter of the second connecting portion 40 can be reduced by rotating the nut 70, thereby clamping the inner cable rubber ring 60 and thus the cable.
To sum up, the utility model provides a simple to operate's a water joint for ammeter case. The waterproof joint has the advantages of few parts, low cost, high production efficiency, convenient assembly and disassembly and good sealing performance.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (9)
1. A waterproof joint for an electric meter box is provided with an interface for communicating an inner cavity of the electric meter box with the outside of the electric meter box, and is characterized by further comprising a hollow cable clamp with openings at two ends;
the cable chuck is sleeved in the interface, one end of the cable chuck extends into the electric meter box, and the cable chuck can be arranged in a rotating mode;
the side wall of the cable chuck is provided with a convex part, and the convex part is positioned in the electric meter box;
the electric meter box is provided with a clamping portion, the clamping portion is provided with a clamping surface facing the inner wall of the electric meter box with an interface, and the protruding portion is screwed in between the clamping surface and the inner wall of the electric meter box with the interface along with the rotation of the cable chuck and is clamped tightly by the clamping surface and the inner wall of the electric meter box.
2. The waterproof connector for the electric meter box according to claim 1, wherein the cable clamp is axially divided into a first connecting portion and a second connecting portion, the first connecting portion is sleeved in the connector, and the longitudinal section of the inner wall of the first connecting portion is regular hexagon.
3. The watertight connector for an electric meter box according to claim 2, wherein the material of the second connecting portion is an elastic material, and at least two notches are formed in a side wall of the second connecting portion, and are arranged around a central axis of the second connecting portion;
the notch extends to the opening of the second connecting part along the axial direction of the second connecting part.
4. The watertight connector for an electric meter box according to claim 2, further comprising a cable rubber ring, wherein the cable rubber ring is sleeved in the second connecting portion.
5. The watertight connector for an electric meter box according to claim 3, further comprising a nut, wherein the nut is sleeved on the cable clamp and is in threaded connection with the first connecting portion, one end of the nut, which is far away from the electric meter box, in the axial direction of the nut is provided with a gradual change region, the inner diameter of the nut, which is located in the gradual change region, is gradually reduced in a direction far away from the electric meter box, and the diameter of the outer wall of the second connecting portion is larger than the minimum inner diameter of the nut.
6. The watertight connector for an electric meter box according to claim 1, characterized in that the cable clamp is screwed to the interface.
7. The waterproof connector for the electric meter box as claimed in claim 1, wherein the buckling portion is of a strip structure, the longitudinal section of the buckling portion is in an inverted L shape, one end of the buckling portion is connected with the inner wall of the electric meter box with the interface, the other end of the buckling portion extends towards the direction close to the cable chuck, and the surface of the other end of the buckling portion, which faces the side, provided with the interface, of the inner wall of the electric meter box is a clamping surface.
8. The watertight connector for an electric meter box according to claim 7, wherein the number of the snap portions and the protruding portions is two, respectively;
the two protruding parts are symmetrically arranged, and the two buckling parts are arranged in parallel.
9. The watertight connector for an electric meter box according to claim 7, further comprising a positioning projection and a positioning portion;
the positioning protrusion is arranged on the side wall of the cable chuck and positioned in the electric meter box, and the length of the positioning protrusion in the radial direction of the cable chuck is greater than that of the protrusion part in the radial direction of the cable chuck;
location portion locates in the ammeter case, and the protruding orientation that is close to or keeps away from location portion along with the rotation of cable chuck is portable to be set up, when location portion and the protruding butt in location, the bellying is located between the inner wall of clamping surface and ammeter case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626684.4U CN210487836U (en) | 2019-04-30 | 2019-04-30 | Waterproof joint for electric meter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626684.4U CN210487836U (en) | 2019-04-30 | 2019-04-30 | Waterproof joint for electric meter box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210487836U true CN210487836U (en) | 2020-05-08 |
Family
ID=70486537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920626684.4U Active CN210487836U (en) | 2019-04-30 | 2019-04-30 | Waterproof joint for electric meter box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210487836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082573A (en) * | 2019-04-30 | 2019-08-02 | 深圳市银河表计股份有限公司 | Waterproof connector for ammeter box |
-
2019
- 2019-04-30 CN CN201920626684.4U patent/CN210487836U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082573A (en) * | 2019-04-30 | 2019-08-02 | 深圳市银河表计股份有限公司 | Waterproof connector for ammeter box |
| CN110082573B (en) * | 2019-04-30 | 2024-07-26 | 银河电力集团股份有限公司 | Waterproof joint for ammeter box |
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