Waterproof and dustproof protection device for liquid level meter

Abstract

The utility model discloses a water-proof and dust-proof protection device for a liquid level meter, and particularly relates to the technical field of liquid level detection, the water-proof and dust-proof protection device comprises a junction box body, a box cover and an I-shaped wire connector, the box cover is installed on the junction box body, the I-shaped wire connector is sleeved on the surface of the junction box body in a penetrating mode, and the surface of the box cover is provided with a first sealing strip used for sealing the junction box body. The I-shaped wire connector is used for connecting wires with parts in the junction box body; a sealing assembly is arranged outside the I-shaped wire connector, the sealing assembly comprises a second sealing strip, a connecting cylinder and a tightening cap, and the second sealing strip is arranged outside the I-shaped wire connector in a sleeving manner. According to the utility model, through the arrangement of the sealing assembly, external dust and water can be effectively prevented from entering the junction box body through the gap to damage equipment parts in the junction box body in the use process of the junction box body, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection, and more specifically to a waterproof and dustproof protection device for a liquid level meter. Background Art

[0002] The level meter junction box is an important level meter accessory, which is used to connect the level meter with other devices, such as controllers, relays, etc., to achieve monitoring and control of the liquid level. Its function is to transmit the signals collected by the level meter to other devices so that they can perform corresponding processing and control and protect them.

[0003] When the level gauge junction box currently on the market is used, the transmission line of the level gauge is usually connected to the corresponding terminal of the level gauge junction box, and the air guide pipe opening is directly connected to the inside of the level gauge junction box.

[0004] However, in actual use, since most of the existing liquid level meter junction boxes are only simple wiring connections, gaps are easily generated between the wires and the wiring ports of the junction box. This not only has poor sealing, but the wiring ports will be fully exposed to the air and are extremely susceptible to corrosion, resulting in a short service life and prone to failure. It is also easy for moisture to cause large signal transmission errors and inaccurate measurement data. Utility Model Content

[0005] The utility model provides a liquid level meter waterproof and dustproof protection device, and aims to solve the problem that most of the existing liquid level meter junction boxes are simply wired and connected, and then the air duct port is directly connected to the inside of the junction box, which not only has poor sealing, but also the junction port is fully exposed to the air and is easily corroded, has a short service life and is prone to malfunction, and is also prone to large signal transmission errors due to moisture, resulting in inaccurate measurement data.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid level gauge waterproof and dustproof protection device, comprising a junction box body, a box cover and an I-shaped connector, the box cover is installed on the junction box body, and the I-shaped connector is penetrated and sleeved on the side wall of the junction box body, characterized in that: a first sealing strip for sealing the junction box body and the box cover is arranged on the surface of the box cover, and the I-shaped connector is used to pass the wires and connect the wires with the internal parts of the junction box body; a sealing component is arranged on the outside of the I-shaped connector, and the sealing component includes a second sealing strip, a connecting tube, and a tight cap, the second sealing strip is sleeved on the outside of the I-shaped connector and is located on the outer surface of the junction box body, the connecting tube is fixedly arranged on the I-shaped connector, and the tight cap is threadedly connected to the connecting tube.

[0007] In a preferred embodiment, the sealing assembly further comprises a third sealing strip fixedly arranged in the inner cavity of the tight cap, which helps to prevent water and dust from entering the junction box body through the gap at the wiring port during use and affecting the detection data.

[0008] In a preferred embodiment, the sealing assembly further comprises an arcuate slide rail, a movable disk and a fixed disk, the arcuate slide rail is arranged on the inner wall of the I-shaped connector, the fixed disk is fixedly arranged in the inner cavity of the I-shaped connector, a slider is arranged on the side wall of the movable disk, the movable disk is located on one side of the wiring port through the slider, and is slidably connected to the arcuate slide rail, through holes are arranged on the surfaces of the movable disk and the fixed disk, the two through holes are staggered with each other, and an adjuster is arranged between the through hole on the surface of the movable disk and the fixed disk.

[0009] In a preferred embodiment, the regulator includes a first connecting tube, a spring, and a second connecting tube. The second connecting tube is connected to a through hole opened on the surface of the movable disk. The first connecting tube is movably sleeved on the outside of the second connecting tube. The spring is located between the movable disk and the fixed disk, and is sleeved on the outside of the first connecting tube and the second connecting tube. This is beneficial for preventing external water from entering the interior of the junction box body through the I-shaped connector during maintenance.

[0010] In a preferred embodiment, a movable ring is slidably sleeved on the side of the first connecting tube close to the fixed disk, and a plurality of balls are rotatably clamped on the side of the movable ring away from the movable disk, which is beneficial to improve the stability of the first connecting tube when moving.

[0011] In a preferred embodiment, a storage box is provided in the inner cavity of the junction box body, the storage box passes through the junction box body, and is movably connected to the side wall of the junction box body. A desiccant is detachably provided inside the storage box, which helps to prevent moisture from being generated inside the junction box body and affecting the service life of the equipment parts inside the junction box body.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model provides a sealing component, which can effectively prevent external dust and water from entering the inside of the junction box body through the gap during the use of the junction box body, thereby causing damage to the internal equipment parts of the junction box body, and effectively prolonging the service life of the device;

[0014] 2. The utility model provides a regulator and utilizes two through holes to stagger the junction box body and the wiring during maintenance to achieve automatic sealing of the inside of the I-shaped connector, which can effectively prevent water from entering the inner cavity of the junction box body through the I-shaped connector during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model junction box body being opened;

[0017] Figure 3 This is a schematic diagram of the structure of the I-shaped connector of the utility model;

[0018] Figure 4 It is a partial schematic cross-sectional view of the I-shaped connector of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the first connecting pipe of the utility model;

[0020] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0021] The accompanying drawings are marked as follows: 1. junction box body; 2. box cover; 3. first sealing strip; 4. I-shaped connector; 41. movable disk; 411. through hole; 42. fixed disk; 43. arc-shaped slide rail; 44. slider; 45. first connecting pipe; 46. spring; 47. second connecting pipe; 48. movable ring; 49. ball bearing; 5. second sealing strip; 6. connecting tube; 7. tight cap; 8. third sealing strip; 10. storage box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] Refer to the instruction manual Figure 1-Figure 6 A liquid level gauge waterproof and dustproof protection device comprises a junction box body 1, a box cover 2 and an I-shaped connector 4, the box cover 2 is mounted on the junction box body 1, the I-shaped connector 4 is penetrated and sleeved on the side wall of the junction box body 1, a first sealing strip 3 for sealing the junction box body 1 and the box cover 2 is arranged on the surface of the box cover 2, the I-shaped connector 4 is used to pass wires and connect the wires with the internal parts of the junction box body 1; a sealing component is arranged outside the I-shaped connector 4, the sealing component comprises a second sealing strip 5, a connecting tube 6, and a tight cap 7, the second sealing strip 5 is sleeved on the outside of the I-shaped connector 4 and is located on the outer surface of the junction box body 1, the connecting tube 6 is fixedly arranged on the I-shaped connector 4, and the tight cap 7 is threadedly connected with the connecting tube 6.

[0025] It should be noted that, by arranging the first sealing strip 3 on the surface of the junction box body 1, when the junction box body 1 and the box cover 2 are closed with screws, the first sealing strip 3 can seal the gap between the junction box body 1 and the box cover 2 to prevent dust and water from entering the interior of the junction box body 1, and when the wire is passed through the I-shaped connector 4 to connect with the internal equipment parts of the junction box body 1, the second sealing strip 5 can seal the gap generated between the I-shaped connector 4 and the junction box body 1.

[0026] Furthermore, the sealing assembly also includes an arc-shaped slide rail 43, a movable disk 41 and a fixed disk 42. The arc-shaped slide rail 43 is opened on the inner wall of the I-shaped connector 4, and the fixed disk 42 is fixedly set in the inner cavity of the I-shaped connector 4. A slider 44 is set on the side wall of the movable disk 41. The movable disk 41 is located on one side of the wiring port through the slider 44, and is slidably connected to the arc-shaped slide rail 43. Through holes 411 are opened on the surfaces of the movable disk 41 and the fixed disk 42. The two through holes 411 are staggered with each other. An adjuster is set between the through holes 411 opened on the surface of the movable disk 41 and the fixed disk 42; the adjuster includes a first connecting tube 45, a spring 46, and a second connecting tube 47. The second connecting tube 47 is connected to the through hole 411 opened on the surface of the movable disk 41. The first connecting tube 45 is movably sleeved on the outside of the second connecting tube 47. The spring 46 is located between the movable disk 41 and the fixed disk 42, and is sleeved on the outside of the first connecting tube 45 and the second connecting tube 47.

[0027] In the above embodiment, when changing the line, since the tight cap 7 and the inside of the I-shaped connector 4 are in an empty state, when the line is separated from the I-shaped connector 4, the spring 46 pushes the movable disk 41 along the track of the arc-shaped slide rail 43 to move and reset, and at the same time, the first connecting tube 45 and the second connecting tube 47 automatically extend, and the two through holes 411 are in a misaligned state due to the movement and rotation of the movable disk 41 along the track of the arc-shaped slide rail 43, and at this time, the bottom of the first connecting tube 45 is in contact with the surface of the fixed disk 42. , so that the connection part of the I-shaped connector 4 is in a sealed state, which can prevent external water from entering the inside of the junction box body 1 through the I-shaped connector 4 during maintenance. When the maintenance is completed, the wire to be connected can be pressed into the inside of the I-shaped connector 4 from the direction of the tight cap 7 with the help of a tool, and the end of the wire pushes the movable disk 41 to move and move along the arc-shaped slide rail 43. At the same time, the first connecting pipe 45 is driven to move and coincides with the through hole 411 on the surface of the fixed disk 42, and the wire can be easily passed through the I-shaped connector 4 and connected to the inside of the junction box body 1.

[0028] Furthermore, a movable ring 48 is slidably sleeved on a side of the first connecting pipe 45 close to the fixed plate 42 , and a plurality of balls 49 are rotatably engaged and fastened on a side of the movable ring 48 away from the movable plate 41 .

[0029] In the above embodiment, the balls 49 are in contact with the fixed plate 42 and the balls 49 rotate, thereby improving the stability of the movement of the first connecting pipe 45.

[0030] Furthermore, the sealing assembly also includes a third sealing strip 8 fixedly arranged in the inner cavity of the tight cap 7 .

[0031] In the above embodiment, the gap between the wire and the tight cap 7 is blocked by the third sealing strip 8, so that moisture can be prevented from entering the inside of the junction box body 1 through the gap between the tight cap 7 and the wire.

[0032] Furthermore, a storage box 10 is provided in the inner cavity of the junction box body 1. The storage box 10 passes through the junction box body 1 and is movably engaged with the side wall of the junction box body 1. A desiccant is detachably provided inside the storage box 10.

[0033] It should be noted that the side of the storage box 10 in contact with the junction box body 1 is closed when snapped in, and the storage box 10 is pulled out from the surface of the junction box body 1. The desiccant disposed inside the junction box body 1 can be easily replaced through the storage box 10, thereby improving practicality.

[0034] In this embodiment, the implementation scenario is specifically as follows: when the junction box body 1 and the box cover 2 are closed by screws during the installation of the junction box body 1, the first sealing strip 3 can seal the gap between the junction box body 1 and the box cover 2 to prevent dust and water from entering the inside of the junction box body 1. When the connected wire passes through the I-shaped connector 4 and connects with the internal equipment parts of the junction box body 1, the wire is pressed from the direction of the tight cap 7 to the inside of the I-shaped connector 4, and the distance between the tight cap 7 and the I-shaped connector 4 is adjusted. The end of the wire pushes the movable disk 41 to move and moves along the arc-shaped slide rail 43, and the first connecting pipe 45 is driven When the moving plate 42 is overlapped with the through hole 411 on the surface of the fixed plate 42, the wire can be conveniently passed through the I-shaped connector 4 and connected to the inside of the junction box body 1. At the same time, the gap between the I-shaped connector 4 and the junction box body 1 can be sealed by the second sealing strip 5, and the gap between the wire and the tight cap 7 is blocked by the third sealing strip 8 to prevent moisture from entering the inside of the junction box body 1 through the gap between the tight cap 7 and the wire. By rotating and adjusting the distance between the tight cap 7 and the I-shaped connector 4, the wire is positioned and tightened, which can effectively prevent external water and dust from entering the inner cavity of the junction box body 1 during use to affect parts and equipment;

[0035] During maintenance, when the wire is separated from the I-shaped connector 4, the spring 46 pushes the movable disk 41 to move and reset along the track of the arc-shaped slide rail 43 through its own elasticity. At the same time, the first connecting tube 45 and the second connecting tube 47 are automatically unfolded. The two through holes 411 are in a misaligned state due to the movement and rotation of the movable disk 41 along the track of the arc-shaped slide rail 43. At this time, the bottom of the first connecting tube 45 fits with the surface of the fixed disk 42, so that the connection of the I-shaped connector 4 is in a sealed state, which can prevent external water from entering the inside of the junction box body 1 through the I-shaped connector 4 during maintenance.

[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A liquid level gauge waterproof and dustproof protection device, comprising a junction box body (1), a box cover (2) and an I-shaped connector (4), wherein the box cover (2) is mounted on the junction box body (1), and the I-shaped connector (4) is penetrated and sleeved on the side wall of the junction box body (1), characterized in that: The surface of the box cover (2) is provided with a first sealing strip (3) for sealing the junction box body (1) and the box cover (2); the I-shaped connector (4) is used for threading electric wires and connecting the electric wires to the internal parts of the junction box body (1); The I-shaped connector (4) is provided with a sealing assembly outside, the sealing assembly comprising a second sealing strip (5), a connecting tube (6), and a tight cap (7); the second sealing strip (5) is sleeved on the outside of the I-shaped connector (4) and is located on the outer surface of the junction box body (1); the connecting tube (6) is fixedly arranged on the I-shaped connector (4); and the tight cap (7) is threadedly connected to the connecting tube (6).

2. A liquid level gauge waterproof and dustproof protection device according to claim 1, characterized in that: The sealing assembly further comprises an arc-shaped slide rail (43), a movable disk (41) and a fixed disk (42); the arc-shaped slide rail (43) is provided on the inner wall of the I-shaped connector (4); the fixed disk (42) is fixedly provided in the inner cavity of the I-shaped connector (4); a slider (44) is provided on the side wall of the movable disk (41); the movable disk (41) is located at one side of the wiring port through the slider (44) and is slidably connected to the arc-shaped slide rail (43); through holes (411) are provided on the surfaces of the movable disk (41) and the fixed disk (42); the two through holes (411) are mutually offset; and an adjuster is provided between the through hole (411) provided on the surface of the movable disk (41) and the fixed disk (42).

3. A liquid level gauge waterproof and dustproof protection device according to claim 2, characterized in that: The regulator comprises a first connecting tube (45), a spring (46), and a second connecting tube (47); the second connecting tube (47) is connected to a through hole (411) provided on the surface of a movable disk (41); the first connecting tube (45) is movably sleeved on the outside of the second connecting tube (47); the spring (46) is located between the movable disk (41) and the fixed disk (42), and sleeved on the outside of the first connecting tube (45) and the second connecting tube (47).

4. The waterproof and dustproof protection device for a liquid level gauge according to claim 3, characterized in that: A movable ring (48) is slidably sleeved on the side of the first connecting pipe (45) close to the fixed disk (42), and a plurality of balls (49) are rotatably engaged and clamped on the side of the movable ring (48) away from the movable disk (41).

5. The waterproof and dustproof protection device for a liquid level gauge according to claim 3, characterized in that: The sealing assembly also includes a third sealing strip (8) fixedly arranged in the inner cavity of the tight cap (7).

6. The waterproof and dustproof protection device for a liquid level gauge according to claim 1, characterized in that: The inner cavity of the junction box body (1) is provided with a storage box (10), the storage box (10) passes through the junction box body (1) and is movably engaged with the side wall of the junction box body (1), and a desiccant is detachably provided inside the storage box (10).

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