High-sealing water level sensor

Abstract

A high-sealing water level sensor comprises a shell, a mounting cover, a connector and a sensing element, the connector and the sensing element are fixed to the upper side and the lower side of the mounting cover respectively, the connector penetrates through the mounting cover to be connected with the sensing element, a bolt is arranged on the upper side of the shell, and a threaded hole matched with the bolt is formed in the lower side of the mounting cover. The lower end of the sensing element is fixedly connected with a detection head, a fixing plate is arranged in the shell, the fixing plate is matched with the inner wall of the shell, a through hole is formed in the center of the fixing plate, and a fixing structure for fixing a connector is arranged on the fixing plate; a plurality of spring rods are arranged on the mounting cover, and the spring rods are matched with the slotted holes. According to the utility model, the sensing element is fixed at the bottom of the mounting cover, the mounting cover and the shell are fixedly sealed through the matching of the threaded holes and the bolts, and the plurality of gaskets are sleeved on the detection head on the mounting cover and are matched with the fixing structure at the bottom of the shell, so that the bottom of the shell is highly sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of water level sensors, in particular to a high-sealing water level sensor. Background Art

[0002] The authorization announcement number CN218628521U is retrieved and found to be a car water level sensor with good sealing effect, comprising: a lower protective cover, an upper protective cover and a body, wherein the lower protective cover and the upper protective cover are arranged opposite to each other, the body is arranged inside the lower protective cover and the upper protective cover, a limiting sleeve is arranged through the middle of the lower end of the lower protective cover, and a probe is arranged at the lower end of the body relative to the limiting sleeve; the body is sealed and protected by the lower protective cover and the upper protective cover to form an effective waterproof effect, the water level of the water tank is detected by the probe, and the connection between the probe and the body is sealed and protected by the limiting sleeve;

[0003] The device seals the body of the device by setting up upper and lower protective covers, and uses plug plates to fix the two protective covers. Since the water level sensor needs to be immersed in water for a long time to work, only fixing the two protective covers with plug plates will cause the plug plates to loosen after long-term immersion in water, which will cause the protective covers to fail to play a waterproof effect, causing the water level sensor to be damaged by water erosion. At the same time, only one layer of waterproof structure is used at the lower detection head for waterproofing, and the waterproof effect is average. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: the protective cover is fixed by a plug plate, which will not be firmly fixed after being immersed in water for a long time, resulting in the protective cover being unable to play a waterproof effect; the detection head only uses a layer of waterproof structure for waterproofing, and the waterproof effect is generally poor, and a high-sealing water level sensor is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-sealed water level sensor, comprising a shell, a mounting cover, a connector, and a sensing element, wherein the connector and the sensing element are respectively fixed to the upper and lower sides of the mounting cover, and the connector penetrates the mounting cover and is connected to the sensing element, the upper side of the shell is provided with bolts, the lower side of the mounting cover is provided with threaded holes matching the bolts, the lower end of the sensing element is fixedly connected with a detection head, a fixing plate is provided inside the shell, and the fixing plate is matched with the inner wall of the shell, a through hole is provided at the center of the fixing plate, and a fixing structure for fixing the connector is provided on the fixing plate;

[0007] The fixing structure includes: a gasket 1, a fixing frame, a slide groove 1, a slide groove 2, a gear, a slider, an annular frame, and a slot hole. The fixing frame is fixed to the fixing plate, and the fixing frame and the fixing plate are matched. A gap is provided between the inner ring side of the fixing frame and the fixing plate, and the gasket 1 is matched and provided in the gap. The fixing frame is provided with a slide groove 1 and a plurality of slide grooves 2. The slide groove 1 is annularly provided. A plurality of sliders are slidably provided on the fixing frame through a plurality of slide grooves 2. A plurality of gears are also rotatably provided on the fixing frame. A plurality of sliders are provided with racks that mesh with the gears. The annular frame is rotatably connected to the fixing frame through the slide groove 1. A plurality of slot holes are provided on the annular frame.

[0008] The installation cover is provided with a plurality of spring rods, and the spring rods are matched with the slot holes.

[0009] Preferably, the detection head is provided with a second gasket and a third gasket, the second gasket is matched with the through hole of the fixing plate, and the third gasket is matched with the fixing frame.

[0010] Preferably, the bottom of the shell is hollow, and a plurality of circular holes are provided on the lower side wall of the shell.

[0011] Preferably, a buffer pad is provided on the inner side wall of the fixing frame.

[0012] Preferably, a waterproof gasket matching the housing is provided at the bottom of the threaded hole in the mounting cover. Beneficial Effects

[0013] The fixing structure is provided with slot holes, and a plurality of spring rods are provided on the mounting cover. The mounting cover can be rotated by the spring rods to be fixed or removed with the shell, and at the same time, the fixing structure is driven to limit or cancel the limit fixation of the gasket three, which not only meets the high sealing of the equipment, but also makes the equipment more convenient and quick during installation or disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a high-sealing water level sensor.

[0015] Figure 2 The utility model is a schematic structural diagram of a high-sealing water level sensor cross section.

[0016] Figure 3 This is a structural schematic diagram of the installation cover and shell body proposed by the utility model.

[0017] Figure 4 This is a structural schematic diagram of the installation cover and the sensor element proposed by the utility model.

[0018] Figure 5 This is a structural schematic diagram of the disassembled fixed structure proposed by the utility model.

[0019] Figure 6 This is a structural schematic diagram of the fixed structural section proposed by the utility model.

[0020] In the figure: 1 housing, 2 mounting cover, 3 connector, 4 sensor element, 5 detection head, 6 fixing structure, 61 gasket 1, 62 fixing frame, 63 slide groove 1, 64 slide groove 2, 65 gear, 66 slider, 67 annular frame, 68 slot, 7 gasket 2, 8 gasket 3, 9 bolt, 10 threaded hole, 11 spring rod, 12 fixing plate. DETAILED DESCRIPTION

[0021] A high-sealed water level sensor comprises a housing 1, a mounting cover 2, a connector 3, and a sensing element 4. The connector 3 and the sensing element 4 are respectively fixed to the upper and lower sides of the mounting cover 2, and the connector 3 penetrates the mounting cover 2 and is connected to the sensing element 4. Bolts 9 are provided on the upper side of the housing 1, and threaded holes 10 matching the bolts 9 are provided on the lower side of the mounting cover 2. A detection head 5 is fixedly connected to the lower end of the sensing element 4. A fixing plate 12 is provided in the housing 1, and the fixing plate 12 is matched with the inner wall of the housing 1. A through hole is provided at the center of the fixing plate 12, and a fixing structure 6 for fixing the connector 3 is provided on the fixing plate 12.

[0022] The fixing structure 6 includes: a gasket 1 61, a fixing frame 62, a slide groove 1 63, a slide groove 2 64, a gear 65, a slider 66, an annular frame 67, and a slot 68. The fixing frame 62 is fixed on the fixing plate 12, and the fixing frame 62 is matched with the fixing plate 12. A gap is provided between the inner ring side of the fixing frame 62 and the fixing plate 12, and the gasket 1 61 is matched in the gap. A slide groove 1 63 and a plurality of slide grooves 2 64 are provided on the fixing frame 62. The slide groove 1 63 is annularly arranged. A plurality of sliders 66 are slidably arranged on the fixing frame 62 through a plurality of slide grooves 2 64. A plurality of gears 65 are also rotatably arranged on the fixing frame 62. A plurality of sliders 66 are provided with racks that mesh with the gears 65. The annular frame 67 is rotatably connected to the fixing frame 63 through the slide groove 1 63. A plurality of slots 68 are provided on the annular frame 67. Rotating the annular frame 67 can drive the plurality of gears 65 to rotate, and the gears 65 drive the sliders 66 to slide toward the center, thereby fixing the connector 3.

[0023] A plurality of spring rods 11 are disposed on the mounting cover 2 , and the spring rods 11 are matched with the slots 68 . The spring rods 11 can be inserted into the slots 68 to control the rotation of the annular frame 67 .

[0024] The detection head 5 is provided with a gasket 2 7 and a gasket 3 8. The gasket 2 7 is matched with the through hole of the fixed plate 12, and the gasket 3 8 is matched with the fixed frame 62. By arranging the gasket 2 7 and the gasket 3 8, an effective waterproof effect can be achieved. At the same time, the gasket 3 8 is made of elastic rubber material, and the outer diameter of the gasket 3 8 is slightly larger than the inner diameter of the gasket 1 61. The gasket 3 8 is squeezed into the gasket 1 61, which can achieve a high sealing effect.

[0025] The inner wall of the fixing frame 62 is provided with a buffer pad, and the buffer pad can achieve a stable fixed installation effect when the connector 3 is fixed to the fixing mechanism 6 .

[0026] A waterproof gasket matching the housing 1 is provided at the bottom of the threaded hole 10 in the installation cover 2 . By providing the waterproof gasket, the top of the housing 1 and the installation cover 2 can be effectively sealed.

[0027] In the utility model, when the housing 1 and the mounting cover 2 are installed, the connector 3 is placed in the housing 1, and the mounting cover 2 drives the gasket 2 7 and the gasket 3 8 to move downward through the detection head 5, and the gasket 2 7 enters the through hole in the fixing plate 12, and the gasket 3 8 squeezes the gasket 1 61 to fit with it, and at the same time, after the spring rod 11 is inserted into the slot 68, the mounting cover 2 is rotated, and the threaded hole 10 cooperates with the bolt 9, so that the top of the housing 1 and the mounting cover 2 are sealed and fixed, and at the same time, the mounting cover 2 drives the annular frame 67 to rotate in the slide groove 1 63 through the spring rod 11, and the annular frame 67 drives the multiple sliders 66 to slide toward the center in the slide groove 2 64 through the multiple gears 65, so that the multiple sliders 66 can slide toward the center in the slide groove 2 64. A slider 66 is used to fix and squeeze gasket three 8 to prevent gasket three 8 from being separated from the close fit with gasket one 61 due to its elastic effect; when the water level sensor fails and needs to be disassembled and repaired, it is only necessary to rotate the mounting cover 2. According to the reverse movement of the above structure, the mounting cover 2 can be removed, so that the sensor element 4 can be inspected and repaired, and the threaded holes 10 on the shell 1 and the mounting cover 2 cooperate with the bolts 9 to effectively seal the upper end of the water level sensor. At the same time, gasket one 61, gasket two 7, and gasket three 8 are arranged on the lower side to cooperate closely, thereby achieving a multiple waterproof effect, thereby realizing a high sealing effect of the water level sensor and facilitating the inspection and repair of the water level sensor.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly sealed water level sensor, comprising a housing (1), a mounting cover (2), a connector (3), and a sensing element (4), wherein: The connecting head (3) and the sensor element (4) are respectively fixed to the upper and lower sides of the mounting cover (2), and the connecting head (3) passes through the mounting cover (2) and is connected to the sensor element (4). The upper side of the housing (1) is provided with a bolt (9), and the lower side of the mounting cover (2) is provided with a threaded hole (10) matching the bolt (9). The lower end of the sensor element (4) is fixedly connected to a detection head (5). A fixing plate (12) is provided inside the housing (1), and the fixing plate (12) is matched with the inner wall of the housing (1). A through hole is provided at the center of the fixing plate (12). A fixing structure (6) for fixing the connecting head (3) is provided on the fixing plate (12). A plurality of spring rods (11) are provided on the mounting cover (2), and the spring rods (11) are matched with the slots (68).

2. A high-sealing water level sensor according to claim 1, characterized in that: The fixing structure (6) comprises: a fixing frame fixed on a fixing plate (12), and the fixing frame and the fixing plate (12) are matched and arranged, a gap is arranged between the inner ring side of the fixing frame and the fixing plate (12), and a gasket 1 (61) is matched and arranged in the gap, a slide groove 1 and a plurality of slide grooves 2 (64) are arranged on the fixing frame, the slide groove 1 is annular, a plurality of sliders (66) are slidably arranged on the fixing frame through a plurality of slide grooves 2 (64), a plurality of gears (65) are rotatably arranged on the fixing frame, a plurality of the sliders (66) are provided with racks that mesh with the gears (65), an annular frame (67) is rotatably connected to the fixing frame through the slide groove 1, and a plurality of slot holes (68) are arranged on the annular frame (67).

3. A high-sealing water level sensor according to claim 2, characterized in that: The detection head (5) is sleeved with a second gasket (7) and a third gasket (8); the second gasket (7) is matched with the through hole of the fixing plate (12), and the third gasket (8) is matched with the fixing frame.

4. A high-sealing water level sensor according to claim 1 or 2, characterized in that: The bottom of the shell (1) is hollow, and the lower side wall of the shell (1) is provided with a plurality of circular holes.

5. A high-sealing water level sensor according to claim 2, characterized in that: A buffer pad is arranged on the inner side wall of the fixing frame.

6. A high-sealing water level sensor according to claim 1 or 2, characterized in that: A waterproof gasket matching the housing (1) is provided at the bottom of the threaded hole (10) in the mounting cover (2).

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