Waterproof key assembly and electric energy meter

Abstract

The utility model belongs to the technical field of keys, and particularly relates to a waterproof key assembly and an electric energy meter, a pressing rod comprises a pressing part and a main body part, one end of the main body part far away from the pressing part is provided with an anti-falling structure used for being matched with a shell of the electric energy meter, a rubber sleeve is sleeved on the main body part, and the rubber sleeve is sleeved on the main body part. One side, facing the anti-falling structure, of the pressing part is provided with an inserting groove, one end, far away from the anti-falling structure, of the rubber sleeve is inserted into the inserting groove, the rubber sleeve is used for being connected between the pressing part and a shell of the electric energy meter, one end, far away from the pressing part, of the main body part is a pressing end, and the other end, far away from the pressing part, of the main body part is a clamping end. The pressing end is used for pressing a switch of the electric energy meter. The rubber sleeve has elasticity, the rubber sleeve can be compressed to generate elastic deformation when the pressing rod is pressed, the pressing rod can be driven to move in the process of automatically recovering deformation when the pressing rod is released, in addition, the rubber sleeve can play a sealing role when being installed on the shell of the electric energy meter, the structure is simplified, and the steps are simplified.

Description

Technical Field

[0001] The utility model belongs to the technical field of buttons, and in particular relates to a waterproof button component and an electric energy meter. Background Art

[0002] An electric energy meter is an instrument used to measure electrical energy.

[0003] An existing electric energy meter includes a shell, a circuit board, an electrical component and a button. The shell is provided with a mounting cavity, the circuit board and the electrical component are installed in the mounting cavity, the circuit board is electrically connected to the electrical component, the shell is provided with a through hole, the button includes a push rod and a spring, the push rod is assembled in the through hole, the inner end of the button extends into the mounting cavity, the spring is sleeved on the inner end of the push rod, and the outer end of the button is exposed from the shell. When the push rod is pressed, the inner end of the button contacts the circuit board to connect the circuit on the circuit board.

[0004] In order to enable the push rod to return to the initial position after being pressed, the existing electric energy meter has a spring on the part of the push rod located in the installation cavity, and a sealing ring is installed between the push rod and the housing. The push rod is driven back to the initial position by the elastic force of the spring. However, the elastic force of the spring hinders the installation of the push rod and the sealing ring, resulting in the overall installation of the button being cumbersome and time-consuming. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to provide a waterproof key assembly and an electric energy meter in view of the problem that the existing key overall installation is relatively complicated.

[0006] To solve the above technical problems, on the one hand, an embodiment of the utility model provides a waterproof button assembly, including the push rod including a push part and a main body, the end of the main body away from the push part is provided with an anti-slip structure for cooperating with the shell of the electric energy meter, the rubber sleeve is sleeved on the main body, the push part is provided with a plug-in groove on the side facing the anti-slip structure, the end of the rubber sleeve away from the anti-slip structure is plugged into the plug-in groove, the rubber sleeve is used to be connected between the push part and the shell of the electric energy meter, the end of the main body away from the push part is a pressing end, and the pressing end is used to press the switch of the electric energy meter.

[0007] Optionally, the anti-slip structure includes a lower stop step, which is arranged around the outer periphery of the main body, and the side of the lower stop step facing the pressing part is a lower stop surface, which is used to cooperate with the shell of the electric energy meter to limit the distance that the push rod extends out of the shell of the electric energy meter.

[0008] Optionally, the push rod further includes a stopping structure, wherein the stopping structure is disposed between the anti-slip structure and the pressing portion, and the stopping structure is used to cooperate with a housing of the electric energy meter to limit the depth of the push rod extending into the housing of the electric energy meter.

[0009] Optionally, the stopping structure includes an upper stopping step, which is located between the push portion and the lower stopping step, and the upper stopping step is arranged around the outer periphery of the main body. The side of the upper stopping step facing the lower stopping step is an upper stopping surface, and the upper stopping surface is used to cooperate with the shell of the electric energy meter to limit the depth of the push rod extending into the shell of the electric energy meter.

[0010] Optionally, the main body is circular, and includes a first section, a second section and a third section, the second section is located between the first section and the third section, the diameter of the second section is smaller than the diameter of the first section, and the diameter of the first section is consistent with the diameter of the third section.

[0011] Optionally, the push rod further includes a crimping portion, which is disposed around the outer circumference of the push portion and is used to cooperate with an upper cover of the electric energy meter.

[0012] According to the waterproof button assembly of the embodiment of the utility model, compared with the prior art, the spring and the sealing ring are omitted. When the button assembly is installed on the shell of the electric energy meter, it is only necessary to assemble the button rod and the rubber sleeve on the shell. The rubber sleeve itself is elastic. The rubber sleeve can be compressed when the button rod is pressed to produce elastic deformation, and can drive the button rod to move in the process of autonomously restoring the deformation when the button rod is released. In addition, the rubber sleeve can also play a sealing role when installed on the shell of the electric energy meter, which simplifies the structure and simplifies the steps.

[0013] On the other hand, an embodiment of the utility model provides an electric energy meter, including a shell, a circuit board, a switch and the above-mentioned waterproof button assembly, the shell is provided with an installation cavity, the circuit board is installed in the installation cavity, the switch is electrically connected to the circuit board, the waterproof button assembly is installed on the shell, the pressing end extends into the installation cavity, and the pressing end presses the switch when the main body moves toward the installation cavity.

[0014] Optionally, the shell includes a connected upper cover and a table body, the pressing part and the rubber sleeve are installed between the upper cover and the table body, the table body is provided with a mounting hole connected to the mounting cavity, the main body extends into the mounting cavity through the mounting hole, and a stopping boss is provided on the hole wall of the mounting hole, the stopping boss is engaged with the lower stopping surface on the side facing the circuit board, and the stopping boss is engaged with the upper stopping surface on the side facing the pressing part.

[0015] Optionally, a mounting tube is provided on the side of the watch body facing the circuit board, the mounting hole is arranged in the mounting tube, and a plurality of expansion feet are provided at one end of the mounting tube close to the circuit board, and the plurality of expansion feet are arranged at intervals along the circumference of the mounting tube, and one end of each expansion foot close to the axis of the main body extends into the mounting hole, and one end of each expansion foot close to the axis of the main body forms an expansion opening for the third section to pass through, the lower stop surface cooperates with the expansion foot on the side facing the circuit board, and the upper stop surface cooperates with the expansion foot on the side facing away from the circuit board, and the end of the expansion foot extending into the mounting hole forms the stop boss.

[0016] Optionally, a mounting groove is provided on a side of the watch body facing away from the circuit board, an opening of the mounting hole away from one end of the circuit board is provided at the bottom of the mounting groove, and the pressing part and the rubber sleeve are installed in the mounting groove;

[0017] The upper cover is provided with an exposure hole, and a crimping tube is also provided on the side of the upper cover facing the watch body, the pressing part is inserted in the crimping tube, and one end of the pressing part away from the anti-detachment structure is exposed to the upper cover from the exposure hole, and one end of the crimping tube close to the watch body is pressed on the side surface of the crimping part facing the upper cover, and the end surface of the rubber sleeve away from the pressing part is pressed on the bottom of the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a waterproof button assembly provided in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the middle push rod;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the middle rubber sleeve;

[0021] Figure 4 A schematic diagram of the structure of an electric energy meter provided in one embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the assembly of the button assembly and the shell.

[0023] The figure marks in the specification are as follows: 1. push rod; 2. rubber sleeve; 3. push part; 4. crimping part; 5. plug-in slot; 6. main body; 7. first section; 8. second section; 9. third section; 10. upper stop step; 11. upper stop surface; 12. lower stop step; 13. lower stop surface; 14. shell; 15. upper cover; 16. table body; 17. waterproof button assembly; 18. crimping tube; 19. exposure hole; 20. installation slot; 21. installation hole; 22. stop boss; 23. expansion foot; 24. expansion mouth; 25. installation cavity; 26. circuit board; 27. switch; 28. pressing end. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] like Figures 1 to 3 As shown, an embodiment of the utility model provides a waterproof button assembly 17, including a push rod 1 and a rubber sleeve 2, the push rod 1 includes a push portion 3 and a main body 6, the end of the main body 6 away from the push portion 3 is provided with an anti-slip structure for cooperating with the shell 14 of the electric energy meter, the rubber sleeve 2 is sleeved on the main body 6, the push portion 3 is provided with a plug-in slot 5 on the side of the anti-slip structure, the end of the rubber sleeve 2 away from the anti-slip structure is plugged into the plug-in slot 5, the rubber sleeve 2 is used to be connected between the push portion 3 and the shell 14 of the electric energy meter, the end of the main body 6 away from the push portion 3 is a pressing end 28, and the pressing end 28 is used to press the switch 27 of the electric energy meter.

[0026] In one embodiment, the anti-slip structure includes a lower stop step 12, which is arranged around the outer periphery of the main body 6, and the side of the lower stop step 12 facing the pressing portion 3 is a lower stop surface 13, and the lower stop surface 13 is used to stop and cooperate with the shell 14 of the electric energy meter to limit the distance that the push rod 1 extends out of the shell 14 of the electric energy meter.

[0027] The side of the lower stop step 12 facing the push portion 3 is a lower stop surface 13. When installed in the electric energy meter, the lower stop cooperates with the inner stop of the meter body 16 of the electric energy meter to stop the push rod 1 and prevent the push rod 1 from falling off the housing 14 of the electric energy meter.

[0028] In one embodiment, the push rod 1 also includes a stopping structure, which is arranged between the anti-slip structure and the push portion 3, and is used to cooperate with the shell 14 of the electric energy meter to limit the depth of the push rod 1 extending into the shell 14 of the electric energy meter.

[0029] The stopping structure is used to cooperate with the meter body 16 of the electric energy meter, so that the meter body 16 is set between the stopping structure and the anti-slip structure, thereby limiting the moving stroke of the main body 6 of the push rod 1 and preventing the pressing end 28 of the main body 6 from damaging the circuit board 26 in the meter body 16 of the electric energy meter.

[0030] In one embodiment, the stop structure includes an upper stop step 10, the upper stop step 10 is located between the push portion 3 and the lower stop step 12, the upper stop step 10 is arranged around the outer periphery of the main body 6, and the side of the upper stop step 10 facing the lower stop step 12 is an upper stop surface 11, and the upper stop surface 11 is used to stop and cooperate with the housing 14 of the electric energy meter to limit the depth of the push rod 1 extending into the housing 14 of the electric energy meter. The upper stop step 10 has a simple structure and is easy to manufacture.

[0031] In one embodiment, the main body 6 is circular, and includes a first section 7, a second section 8 and a third section 9. The second section 8 is located between the first section 7 and the third section 9. The diameter of the second section 8 is smaller than the diameter of the first section 7, and the diameter of the first section 7 is consistent with the diameter of the third section 9.

[0032] The diameter of the second section 8 is smaller than that of the first section 7. Due to the change in diameter between the first section 7 and the second section 8, the upper stop step 10 is naturally formed. The diameter of the second section 8 is smaller than that of the third section 9. Due to the change in diameter between the second section 8 and the third section 9, the lower stop step 12 is naturally formed. In this embodiment, the outer peripheral surface of the main body 6 is cut to form the second section 8, which has a simple structure and is easy to manufacture.

[0033] In one embodiment, the push rod 1 further includes a crimping portion 4, which is disposed around the outer periphery of the push portion 3, and the crimping portion 4 is used to stop and cooperate with the upper cover 15 of the electric energy meter.

[0034] In addition, if Figure 4 and Figure 5 As shown, an embodiment of the utility model further provides an electric energy meter, including a shell 14, a circuit board 26, a switch 27 and the above-mentioned waterproof button assembly 17, the shell 14 is provided with a mounting cavity 25, the circuit board 26 is installed in the mounting cavity 25, the switch 27 is electrically connected to the circuit board 26, the waterproof button assembly 17 is installed on the shell 14, the pressing end 28 extends into the mounting cavity 25, and the pressing end 28 presses the switch 27 when the main body 6 moves toward the mounting cavity 25.

[0035] In one embodiment, the shell 14 includes a connected upper cover 15 and a watch body 16, the pressing portion 3 and the rubber sleeve 2 are installed between the upper cover 15 and the watch body 16, the watch body 16 is provided with a mounting hole 21 connected to the mounting cavity 25, the main body 6 extends into the mounting cavity 25 through the mounting hole 21, and a stopping boss 22 is provided on the hole wall of the mounting hole 21, the stopping boss 22 is engaged with the lower stopping surface 13 on the side facing the circuit board 26, and the stopping boss 22 is engaged with the upper stopping surface 11 on the side facing the pressing portion 3.

[0036] The stopping boss 22 is located between the upper stopping step 10 and the lower stopping step 12 , and the stopping boss 22 is engaged with the lower stopping surface 13 on the side facing the circuit board 26 , and the stopping boss 22 is engaged with the upper stopping surface 11 on the side facing the pressing portion 3 , thereby limiting the moving stroke of the main body 6 in the mounting hole 21 .

[0037] In one embodiment, a mounting tube is provided on the side of the watch body 16 facing the circuit board 26, and the mounting hole 21 is arranged in the mounting tube. A plurality of expansion feet 23 are provided at one end of the mounting tube close to the circuit board 26, and the plurality of expansion feet 23 are arranged at intervals along the circumference of the mounting tube, and one end of each expansion foot 23 close to the axis of the main body 6 extends into the mounting hole 21, and one end of each expansion foot 23 close to the axis of the main body 6 forms an expansion opening 24 for the third section 9 to pass through, the lower stop surface 13 is stopped and cooperated with the side of the expansion foot 23 facing the circuit board 26, and the upper stop surface 11 is stopped and cooperated with the side of the expansion foot 23 facing away from the circuit board 26, and the end of the expansion foot 23 extending into the mounting hole 21 forms the stopping boss 22.

[0038] The watch body 16 and the upper cover 15 are both made of plastic. The plurality of expansion feet 23 are arranged at intervals. The plurality of expansion feet 23 have a certain deformation ability and can avoid the third section 9 so as to allow the expansion feet 23 to enter the installation cavity 25 for easy installation.

[0039] In one embodiment, a mounting groove 20 is provided on the side of the watch body 16 facing away from the circuit board 26 , the opening of the mounting hole 21 away from the end of the circuit board 26 is arranged at the bottom of the mounting groove 20 , and the pressing part 3 and the rubber sleeve 2 are installed in the mounting groove 20 .

[0040] The upper cover 15 is provided with an exposure hole 19, and a crimping tube 18 is also provided on the side of the upper cover 15 facing the watch body 16. The pressing portion 3 is inserted in the crimping tube 18, and the end of the pressing portion 3 away from the anti-slip structure is exposed from the upper cover 15 through the exposure hole 19. The end of the crimping tube 18 close to the watch body 16 is pressed on the side surface of the crimping portion 4 facing the upper cover 15, and the end surface of the rubber sleeve 2 away from the pressing portion 3 is pressed on the bottom of the installation groove 20.

[0041] In the electric energy meter of the embodiment of the utility model, when the pressing part 3 is pressed, the pressing part 3 drives the third section 9 of the main body 6 to move toward the switch 27 to press the switch 27 and turn on the switch 27. Then, the pressing part 3 is released, and relying on the elastic force of the rubber sleeve 2, the rubber sleeve 2 recovers its deformation while driving the pressing part 3 to drive the main body 6 to move in a direction away from the circuit board 26 until the lower stop surface 13 contacts the expansion foot 23, and the outer periphery of the rubber sleeve 2 is sealed and assembled with the crimping tube 18 of the upper cover 15. The rubber sleeve 2 is clamped between the upper cover 15 and the meter body 16 to prevent debris from entering the inside of the meter body 16.

[0042] According to the electric energy meter of the embodiment of the utility model, compared with the prior art, the spring and the sealing ring are omitted. When the waterproof button assembly 17 is installed on the shell 14 of the electric energy meter, it is only necessary to assemble the push rod 1 and the rubber sleeve 2 on the shell 14. The rubber sleeve 2 itself is elastic. The rubber sleeve 2 can be compressed when the push rod 1 is pressed to generate elastic deformation, and can drive the push rod 1 to move in the process of autonomously restoring the deformation when the push rod 1 is released. In addition, the rubber sleeve 2 can also play a sealing role when installed on the shell 14 of the electric energy meter, thereby simplifying the structure and simplifying the steps.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof button assembly, characterized in that: The invention comprises a push rod (1) and a rubber sleeve (2), wherein the push rod (1) comprises a push portion (3) and a main body (6), wherein one end of the main body (6) away from the push portion (3) is provided with an anti-slip structure for cooperating with a housing (14) of an electric energy meter, wherein the rubber sleeve (2) is sleeved on the main body (6), and a plug-in slot (5) is provided on the side of the push portion (3) facing the anti-slip structure, wherein one end of the rubber sleeve (2) away from the anti-slip structure is plugged into the plug-in slot (5), wherein the rubber sleeve (2) is used to be connected between the push portion (3) and the housing (14) of the electric energy meter, and one end of the main body (6) away from the push portion (3) is a pressing end (28), wherein the pressing end (28) is used to press a switch (27) of the electric energy meter.

2. The waterproof key assembly according to claim 1, characterized in that: The anti-slip structure comprises a lower stop step (12), the lower stop step (12) is arranged around the outer periphery of the main body (6), the side of the lower stop step (12) facing the pressing part (3) is a lower stop surface (13), and the lower stop surface (13) is used to cooperate with the housing (14) of the electric energy meter to limit the distance that the pressing rod (1) extends out of the housing (14) of the electric energy meter.

3. The waterproof key assembly according to claim 2, characterized in that: The push rod (1) also includes a stop structure, which is arranged between the anti-slip structure and the push portion (3), and is used to cooperate with the housing (14) of the electric energy meter to limit the depth of the push rod (1) extending into the housing (14) of the electric energy meter.

4. The waterproof key assembly according to claim 3, characterized in that: The stopping structure comprises an upper stopping step (10), wherein the upper stopping step (10) is located between the pressing portion (3) and the lower stopping step (12), and the upper stopping step (10) is arranged around the outer periphery of the main body (6), and the side of the upper stopping step (10) facing the lower stopping step (12) is an upper stopping surface (11), and the upper stopping surface (11) is used for stopping and cooperating with the housing (14) of the electric energy meter to limit the depth of the pressing rod (1) extending into the housing (14) of the electric energy meter.

5. The waterproof key assembly according to claim 4, characterized in that: The main body (6) is circular and comprises a first section (7), a second section (8) and a third section (9); the second section (8) is located between the first section (7) and the third section (9); the diameter of the second section (8) is smaller than the diameter of the first section (7); and the diameter of the first section (7) is consistent with the diameter of the third section (9).

6. The waterproof key assembly according to claim 5, characterized in that: The push rod (1) also includes a crimping portion (4), which is arranged around the outer periphery of the push portion (3) and is used to engage with the upper cover (15) of the electric energy meter.

7. An electric energy meter, characterized in that: The waterproof key assembly (17) comprises a shell (14), a circuit board (26), a switch (27) and the waterproof key assembly (17) according to claim 6, wherein a mounting cavity (25) is provided in the shell (14), the circuit board (26) is mounted in the mounting cavity (25), the switch (27) is electrically connected to the circuit board (26), the waterproof key assembly (17) is mounted on the shell (14), the pressing end (28) extends into the mounting cavity (25), and the pressing end (28) presses the switch (27) when the main body (6) moves toward the mounting cavity (25).

8. The electric energy meter according to claim 7, characterized in that: The shell (14) comprises an upper cover (15) and a body (16) connected to each other, the pressing part (3) and the rubber sleeve (2) are installed between the upper cover (15) and the body (16), the body (16) is provided with a mounting hole (21) connected to the mounting cavity (25), the main body (6) extends into the mounting cavity (25) through the mounting hole (21), a stop boss (22) is provided on the hole wall of the mounting hole (21), the stop boss (22) is engaged with the lower stop surface (13) on the side facing the circuit board (26), and the stop boss (22) is engaged with the upper stop surface (11) on the side facing the pressing part (3).

9. The electric energy meter according to claim 8, characterized in that: A mounting tube is provided on a side of the watch body (16) facing the circuit board (26), the mounting hole (21) is arranged in the mounting tube, a plurality of expansion feet (23) are provided on one end of the mounting tube close to the circuit board (26), the plurality of expansion feet (23) are arranged at intervals along the circumference of the mounting tube, one end of each expansion foot (23) close to the axis of the main body (6) extends into the mounting hole (21), one end of each expansion foot (23) close to the axis of the main body (6) forms an expansion opening (24) for the third section (9) to pass through, the lower stop surface (13) is in stop cooperation with the side of the expansion foot (23) facing the circuit board (26), the upper stop surface (11) is in stop cooperation with the side of the expansion foot (23) facing away from the circuit board (26), and the end of the expansion foot (23) extending into the mounting hole (21) forms the stop boss (22).

10. The electric energy meter according to claim 8, characterized in that: A mounting groove (20) is provided on a side of the watch body (16) facing away from the circuit board (26); an opening of the mounting hole (21) at one end away from the circuit board (26) is arranged at the bottom of the mounting groove (20); and the pressing portion (3) and the rubber sleeve (2) are installed in the mounting groove (20); The upper cover (15) is provided with an exposure hole (19), and a crimping tube (18) is also provided on the side of the upper cover (15) facing the meter body (16). The pressing part (3) is inserted into the crimping tube (18), and the end of the pressing part (3) away from the anti-slip structure is exposed from the upper cover (15) through the exposure hole (19). The end of the crimping tube (18) close to the meter body (16) is pressed on the side surface of the crimping part (4) facing the upper cover (15), and the end surface of the rubber sleeve (2) away from the pressing part (3) is pressed on the bottom of the installation groove (20).

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