Explosion-proof power supply for NB (Narrow Band) remote transmission diaphragm gas meter

Abstract

The utility model relates to the technical field of supplier equipment, in particular to an NB remote transmission diaphragm gas meter explosion-proof power supplier which comprises a box body, a box cover installed on the box body, a collecting assembly for arranging wires installed on the box body and a positioning assembly for installing a circuit board installed on the box body, and the positioning assembly comprises a positioning plate installed on the box body. A sliding plate is slidably mounted on the positioning plate, a connecting rod is connected to the sliding plate, a push rod is mounted on the connecting rod, and a gasket for supporting the push rod is mounted on the positioning plate. The explosion-proof power supply device has the effect of improving the use performance of the explosion-proof power supply device of the NB remote transmission diaphragm gas meter in the use process.

Description

Technical Field

[0001] The present application relates to the technical field of supply equipment, and in particular to an explosion-proof power supply for NB remote transmission diaphragm gas meters. Background Art

[0002] When using electrical connection parts such as circuit boards, circuit boards, and resistors, in order to ensure safety during use, the electrical connection parts will be installed in isolation. Depending on the use environment, the power box where the electrical connection parts are installed sometimes needs to have explosion-proof function.

[0003] The gas meter power supply needs to have higher safety performance when in use. The gas meter power supply is divided into a switching power supply part and an explosion-proof protection part. Most electrical parts need to be installed in the supply first. After the parts are installed, they are sealed with explosion-proof glue by injecting explosion-proof glue. When installing electrical parts, most supplies are clamped on the supply by a simple clamping plate. The simple clamping method is easy to cause damage to the circuit board during the clamping process. Utility Model Content

[0004] In order to improve the electric performance of the explosion-proof power supply of the NB remote transmission diaphragm gas meter, the present application provides an explosion-proof power supply of the NB remote transmission diaphragm gas meter.

[0005] This application provides an explosion-proof power supply for NB remote transmission diaphragm gas meter, which adopts the following technical solutions:

[0006] The explosion-proof power supply of the NB remote transmission diaphragm gas meter comprises a box body, a box cover is installed on the box body, a collecting component for arranging wires is installed on the box body, a positioning component for installing a circuit board is installed on the box body, the positioning component comprises a positioning plate, the positioning plate is installed on the box body, a slide plate is slidably installed on the positioning plate, a connecting rod is connected to the slide plate, a push rod is installed on the connecting rod, and a washer for supporting the push rod is installed on the positioning plate.

[0007] By adopting the above technical solution, the push rod is pushed to make the slide plate slide, and the slide plate will squeeze the gasket to deform and overlap, and the circuit board is clamped between the positioning plates and then the push rod is released, the gasket will push the slide plate, and the slide plate will apply an elastic thrust to the circuit board, thereby enhancing the stability of the circuit board between the positioning plates. At the same time, the gasket is added to change the force that clamps the circuit board into an elastic force, thereby preventing the staff from damaging the circuit board when clamping the circuit board, which is beneficial to improving the performance of the explosion-proof power supply.

[0008] In a specific feasible implementation scheme, a partition is installed on the box body, and the partition is arranged at a corner position of the box body. The partition and the corner of the box body form an installation chamber, and a mounting column for mounting the box cover is installed on the box body, and a threaded hole is provided on the mounting column. There is a gap between the vertical side wall of the mounting column and the partition and the box body, and the box cover is detachably mounted on the mounting column by screws.

[0009] By adopting the above technical solution, the mounting posts are separated by partitions, so that when the box cover is installed and fixed, the screws are in an independent mounting chamber, reducing the impact of the metal screws on the circuit board in the box body.

[0010] In a specific possible implementation manner, a second step is provided on the box body and the partition, and a second sealing plate which is buckled on the second step is installed on the box cover.

[0011] In a specific possible implementation mode, a first step is provided on the box body, the first step is arranged at the position of the installation chamber, and a first sealing plate is installed on the box cover and is buckled on the first step.

[0012] By adopting the above technical solution, the first step and the second step are provided on the box body, so that the box cover can be positioned quickly and the box cover can be limited. The first step abuts against the side wall of the first sealing plate, and the second step abuts against the side wall of the second sealing plate, so as to prevent the box cover from moving when the box cover is fixed. At the same time, the box cover and the box body are buckled by using the steps, so that the fit between the box body and the box cover can be enhanced, and the stability of the assembly can be enhanced.

[0013] In a specific possible implementation manner, the collection component includes a wire collection rod, the wire collection rod is installed on the box body, and the wire collection rod is a hollow tube.

[0014] By adopting the above technical solution, the wires on the circuit board are passed through the wire collection rod, which makes it easy to collect and organize the wires.

[0015] In a specific possible implementation scheme, a baffle is installed on the box body, and a notch for placing the wire is opened on the baffle.

[0016] By adopting the above technical solution, the circuit board is placed between the baffles, and the lines on the circuit board are placed in the notch position of the baffle, which is convenient for quickly sorting and collecting the wires and preventing the wires from being arranged in a disorderly manner in the box. Because the wire collection rod is connected to the external environment, the baffle is used to isolate the wire collection rod, reducing the interference of the wire collection rod position caused by changes in external links on the circuit board in the box.

[0017] In a specific feasible implementation scheme, a mounting hole for mounting a wire collection rod is provided on the box body, the aperture of the mounting hole is larger than the diameter of the wire collection rod, a thread is provided on the wire collection rod, a fixing cap is fixedly installed on the wire collection rod, a knob is threadedly connected to the wire collection rod, and the wire collection rod can be detachably mounted on the box body by the knob.

[0018] By adopting the above technical solution, the wire collection rod can be detachably installed on the box body by using a knob, so when the wire collection rod is damaged and worn, it is convenient to replace and maintain the wire collection rod.

[0019] In a specific possible implementation manner, the positioning plate is provided with rounded corners.

[0020] By adopting the above technical solution, rounded corners are provided on the positioning plates, so that the circuit board can be pressed and clamped between the positioning plates quickly and smoothly.

[0021] In a specific implementation manner, the box body and the box cover are both made of V-0 grade flame retardant PC material.

[0022] By adopting the above technical solutions, the V-0 flame-retardant PC material can withstand 750°C open flame for 15 seconds without burning, and the thermal deformation temperature of the material can reach 130°C. The structure is stable, avoiding deformation or melting due to overheating, ensuring the long-term and reliable operation of the power box. The V-0 flame-retardant PC material also has excellent insulation properties, which can block current leakage, prevent short circuits, and ensure the safety of electrical equipment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Push the push rod to make the slide plate slide, and the slide plate will squeeze the gasket to deform and overlap. After the circuit board is clamped between the positioning plates, release the push rod, the gasket will push the slide plate, and the slide plate will apply an elastic thrust to the circuit board, which enhances the stability of the circuit board between the positioning plates. At the same time, adding a gasket will change the force of clamping the circuit board into an elastic force, preventing the staff from damaging the circuit board when inserting the circuit board, which is beneficial to improving the performance of the explosion-proof power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of an explosion-proof power supply for a NB remote transmission diaphragm gas meter according to an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of a box body of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the collection component of an embodiment of the present application.

[0028] Figure 4 It is a schematic diagram of a box cover according to an embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of a positioning component according to an embodiment of the present application.

[0030] Figure 6 It is a cross-sectional view of the positioning assembly of an embodiment of the present application.

[0031] Figure numerals: 1. box body; 11. partition; 12. mounting column; 13. first step; 14. second step; 2. box cover; 21. first closing plate; 22. second closing plate; 3. collection assembly; 31. wire collection rod; 32. fixing cap; 33. knob; 34. baffle; 341. notch; 4. positioning assembly; 41. positioning plate; 411. slideway; 412. rounded corner; 42. slide plate; 43. connecting rod; 44. push rod; 45. washer. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The present application embodiment discloses an explosion-proof power supply for a NB remote transmission diaphragm gas meter, referring to Figure 1 and Figure 2 , comprising a box body 1, a box cover 2 is detachably mounted on the box body 1 by screws, a collection component 3 for collecting and arranging the circuits is detachably mounted on the box body 1, and a positioning component 4 for positioning the circuit board is installed in the box body 1.

[0034] Reference Figure 2 and Figure 3 The box body 1 is integrally formed with four partitions 11, which are arranged at the four corners of the box body 1. The partition 11 is an L-shaped plate in a top view. The partition 11 is separated from the four corners of the box body 1 to form four installation chambers. The partition 11 is fixedly installed with a mounting column 12, which is arranged in the installation chamber. There is a gap between the side wall of the mounting column 12 and the partition 11 and the box body 1. The mounting column 12 is provided with a threaded hole, and the box cover 2 is fixedly installed on the mounting column 12 by screws. Figure 2 , Figure 3 and Figure 4 A first step 13 is provided on the box body 1, a second step 14 is provided on the box body 1 and the partition 11, a first sealing plate 21 and a second sealing plate 22 are fixedly installed on the bottom of the box cover 2, when the box cover 2 is buckled on the box body 1, the first sealing plate 21 is buckled on the first step 13, and the second sealing plate 22 is buckled on the second step 14.

[0035] The mounting posts 12 are separated by the partition 11, so that when the box cover 2 is installed and fixed, the screws are in an independent mounting chamber, reducing the impact of the metal screws on the circuit board in the box body 1. The first step 13 and the second step 14 are provided on the box body 1, which facilitates the rapid positioning of the box cover 2 and can also limit the box cover 2. The first step 13 abuts against the side wall of the first sealing plate 21, and the second step 14 abuts against the side wall of the second sealing plate 22, preventing the box cover 2 from moving when the box cover 2 is fixed. At the same time, the box cover 2 and the box body 1 are buckled by the steps, which can enhance the fit between the box body 1 and the box cover 2 and enhance the stability of the assembly.

[0036] The collection component 3 includes a collection rod 31, which can be detachably mounted at both ends of the box body 1. The box body 1 is provided with a mounting hole for mounting the collection rod 31, and the diameter of the mounting hole is larger than the diameter of the collection rod 31. The collection rod 31 is set through the mounting hole. In this embodiment, the mounting hole is only a through hole, which is not shown in the drawings of the specification because it does not affect the understanding of the scheme. The collection rod 31 is a hollow tube, and the outer ring of the collection rod 31 is provided with a thread. A fixing cap 32 is fixedly installed on the collection rod 31, and the fixing cap 32 is set on the outside of the box body 1. The collection rod 31 is threadedly connected with a knob 33, and the knob 33 is set on the inside of the box body 1. Baffles 34 are fixedly installed at both ends of the box body 1. The baffles 34 are set in contact with the side walls of the partition 11, and a notch 341 for collecting wires is opened on the baffles 34.

[0037] The circuit board is placed between the baffles 34, the lines on the circuit board are collected and placed at the notch 341 of the baffle 34, and then the lines are passed through the wire collection rod 31, so as to facilitate the quick collection of the wires and prevent the wires from being arranged in a disorderly manner in the box body 1. Because the wire collection rod 31 is connected to the external environment, the baffle 34 is used to isolate the wire collection rod 31, so as to reduce the interference of the position of the wire collection rod 31 on the circuit board in the box body 1 caused by the change of the external link.

[0038] Reference Figure 2 , Figure 5 and Figure 6 The positioning assembly 4 includes a positioning plate 41, which is fixedly mounted on the box body 1. The positioning plates 41 are arranged on both sides of the longer side of the box body 1. The positioning plate 41 is provided with a slideway 411. A slide plate 42 is slidably mounted on the positioning plate 41. The slide plate 42 is arranged in the slideway 411. A connecting rod 43 is fixedly mounted on the slide plate 42. A push rod 44 is fixedly mounted on the connecting rod 43. A washer 45 is fixedly mounted on the positioning plate 41. The washer 45 is arranged in the slideway 411. The washer 45 is arranged between the slide plate 42 and the vertical side wall of the positioning plate 41. The end of the washer 45 away from the slide plate 42 is fixedly connected to the positioning plate 41. In this embodiment, the washer 45 is made of elastic rubber material. The end of the positioning plate 41 away from the bottom surface of the box body 1 has a rounded corner 412.

[0039] Push the push rod 44 to make the slide plate 42 slide toward the inner side of the positioning plate 41. The slide plate 42 will squeeze the gasket 45 to deform and overlap with the side wall of the positioning plate 41. After the circuit board is clamped between the positioning plates 41 on both sides of the box body 1, the push rod 44 is released. Because the rubber material is elastic, the gasket 45 will push the slide plate 42 outward, and the slide plate 42 will apply an elastic thrust to the circuit board, thereby enhancing the stability of the circuit board between the positioning plates 41. At the same time, adding the gasket 45 changes the force that clamps the circuit board into an elastic force, thereby preventing the staff from damaging the circuit board when inserting the circuit board, which is beneficial to improving the performance of the explosion-proof power supply.

[0040] In the embodiment of the present application, the box body 1 and the box cover 2 are both made of V-0 flame-retardant PC material. The V-0 flame-retardant PC material can withstand an open flame of 750°C for 15 seconds without burning. The thermal deformation temperature of the material can reach 130°C. The structure is stable, avoiding deformation or melting due to overheating, ensuring long-term and reliable operation of the power supply box. The V-0 flame-retardant PC material also has excellent insulation properties, which can block current leakage, prevent short circuits, and ensure the safety of electrical equipment.

[0041] After the circuit board is installed, explosion-proof glue is injected between the baffles 34 to seal the circuit board and enhance the explosion-proof effect.

[0042] The implementation principle of the embodiment of the present application is: the circuit board is clamped on the box body 1 through the positioning plate 41, the lines on the circuit board are placed in the notch 341 on the baffle 34 for collection, and then the lines are passed through the line collection rod 31 to ensure that the lines can be neatly connected to external equipment. After the circuit board is fixed, explosion-proof putty is injected between the baffles 34 to seal the circuit board to enhance the explosion-proof effect, and then the box cover 2 is fixed to the box body 1 with screws.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. NB remote transmission membrane gas meter explosion-proof power supply, characterized by: The invention comprises a box body (1), a box cover (2) being mounted on the box body (1), a collecting assembly (3) for arranging wires being mounted on the box body (1), a positioning assembly (4) for mounting a circuit board being mounted on the box body (1), the positioning assembly (4) comprising a positioning plate (41), the positioning plate (41) being mounted on the box body (1), a slide plate (42) being slidably mounted on the positioning plate (41), a connecting rod (43) being connected to the slide plate (42), a push rod (44) being mounted on the connecting rod (43), and a washer (45) being mounted on the positioning plate (41) for elastically supporting the push rod (44).

2. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 1 is characterized in that: A partition (11) is installed on the box body (1), and the partition (11) is arranged at a corner position of the box body (1). The partition (11) and the corner of the box body (1) form an installation chamber. A mounting column (12) for mounting the box cover (2) is installed on the box body (1), and a threaded hole is opened on the mounting column (12). There is a gap between the vertical side wall of the mounting column (12) and the partition (11) and the box body (1). The box cover (2) is detachably mounted on the mounting column (12) by means of screws.

3. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 2 is characterized in that: The box body (1) and the partition plate (11) are provided with a second step (14), and the box cover (2) is provided with a second sealing plate (22) which is buckled onto the second step (14).

4. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 2 is characterized in that: The box body (1) is provided with a first step (13), the first step (13) being arranged at the position of the installation chamber, and the box cover (2) is provided with a first sealing plate (21) which is buckled onto the first step (13).

5. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 1 is characterized in that: The collection assembly (3) comprises a line collection rod (31), the line collection rod (31) is mounted on the box body (1), and the line collection rod (31) is a hollow tube.

6. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 5 is characterized in that: A baffle (34) is installed on the box body (1), and a notch (341) for placing a wire is provided on the baffle (34).

7. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 5 is characterized in that: The box body (1) is provided with a mounting hole for mounting a wire collection rod (31), the diameter of the mounting hole is larger than the diameter of the wire collection rod (31), the wire collection rod (31) is provided with a thread, a fixing cap (32) is fixedly mounted on the wire collection rod (31), a knob (33) is threadedly connected to the wire collection rod (31), and the wire collection rod (31) is detachably mounted on the box body (1) via the knob (33).

8. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 1 is characterized by: The positioning plate (41) is provided with a rounded corner (412).

9. The explosion-proof power supply for NB remote transmission diaphragm gas meter according to claim 1, characterized in that: The box body (1) and the box cover (2) are both made of V-0 grade flame retardant PC material.

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