Winding resistance type fuel oil liquid level sensor

Abstract

The utility model discloses a winding resistance type fuel oil liquid level sensor which comprises an installation column and a plurality of triangular blocks connected to the inner surface of the installation column in a sliding mode, the outer surfaces of the triangular blocks are fixedly connected with limiting rings, and the limiting rings are connected to the inner surface of the installation column in a sliding mode. A plurality of elastic pieces are fixedly connected between the inner surface of the mounting column and the outer surfaces of the triangular blocks, a sealing ring and a sealing ring are slidably connected to the outer surface of the mounting column, one side of the sealing ring is fixedly connected with one side of the sealing ring, and a moving ring is fixedly connected to the outer surface of the sealing ring; a plurality of sliding grooves are formed in one side of the movable ring. The liquid level sensor relates to the technical field of liquid level sensors. According to the winding resistance type fuel oil liquid level sensor, holes only need to be formed once in the whole installation process, the number of the formed holes is reduced, the construction amount is reduced, damage to an oil drum is reduced, and meanwhile the trouble that bolts and nuts need to stretch into the oil drum when installed is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level sensor technical field, concretely is a winding resistance type fuel oil liquid level sensor. BACKGROUND

[0002] Fuel oil liquid level sensor is through the height change of floating on the fuel, brings mechanical transmission changes the size of internal resistance, and then converts into different degree electric signal to reach the effect of sensing, is commonly used to monitor the fuel consumption in the instrument, but the existing fuel oil liquid level sensor usually needs to open multiple holes on the oil tank when installing, one big hole is the main hole of sensor entering, and the other several are the vice hole of screw entering to fix the sensor, the screw also needs to go out from the inside of the oil tank and then cooperate with the installation nut to fix the sensor, and the overall installation is more troublesome.

[0003] Referring to Chinese patent "a fuel oil liquid level sensor device" publication number "CN206990061U", including fuel oil liquid level sensor body;Fuel oil liquid level sensor body includes nylon framework-winding resistance piece assembly, steel wire shaft sleeve assembly, winding resistance terminal piece assembly, main lead assembly, floating ball body assembly, shaft and contact assembly and vice lead assembly;The utility model provides a kind of fuel oil liquid level sensor device, structure is novel;The present conventional fuel oil liquid level sensor is in the fuel oil liquid level sensor device, and 7 technical improvements, process improvements are proposed, solve the problem of long-term wear, anti-metal fatigue fracture, cold and hot impact stress change, welding reliability, fastening reliability;Make its service life and environmental adaptability greatly superior to early product, but the fuel oil liquid level sensor in this kind of patent also needs to open multiple holes on the oil tank and install sensor by bolt, and the installation is more troublesome, and the damage to oil drum is greater. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a winding resistance type fuel oil liquid level sensor, which solves the problem that the existing fuel oil liquid level sensor usually needs to open multiple holes on the oil tank when installing, and the screw also needs to go through the inside, so that the overall installation is more troublesome and the damage to the oil drum is greater.

[0005] In order to achieve the above object, the utility model discloses the following technical schemes to realize: a winding resistance type fuel oil liquid level sensor, including the mounting post and the sliding connection of a plurality of triangular blocks in the inner surface of mounting post, the outer surface of a plurality of triangular blocks all is fixedly connected with the limiting ring, a plurality of limiting rings all slidingly connect in the inner surface of mounting post, the inner surface of mounting post and the outer surface of a plurality of triangular blocks are fixedly connected with a plurality of elastic pieces, the outer surface of mounting post is slidingly connected with sealing ring and sealing ring, the one side of sealing ring is fixedly connected with the one side of sealing ring, the outer surface of sealing ring is fixedly connected with moving ring, the one side of moving ring is equipped with a plurality of sliding grooves, the one side of moving ring is slidingly connected with a plurality of sliding blocks through a plurality of sliding grooves, and the outer surface of mounting post is threadedly connected with mounting ring.

[0006] Preferably, one end of the mounting column is fixedly connected with a resistance module, and the resistance module is provided with a winding resistance.

[0007] Preferably, the inner surface of the resistance module is rotatably connected with a swing rod, and one end of the swing rod is fixedly connected with an oil float.

[0008] Preferably, one end of the resistance module is electrically connected with a connecting line, and the connecting line is fixedly connected to the inner surface of the mounting column.

[0009] Preferably, one end of the connecting line is electrically connected with a connector.

[0010] Preferably, the outer surface of the mounting ring is fixedly connected with an anti-skid ring, and the anti-skid ring is made of rubber.

[0011] Beneficial effects

[0012] The utility model provides a winding resistance type fuel oil liquid level sensor, and compared with prior art has the following beneficial effects:

[0013] (1), the winding resistance type fuel oil level sensor, a plurality of triangular blocks are slidably connected to the inner surface of the mounting column, the outer surfaces of the plurality of triangular blocks are fixedly connected with a plurality of limiting rings, the plurality of limiting rings are slidably connected to the inner surface of the mounting column, a plurality of elastic elements are fixedly connected between the inner surface of the mounting column and the outer surfaces of the plurality of triangular blocks, the outer surface of the mounting column is slidably connected with a sealing ring and a sealing ring, one side of the sealing ring is fixedly connected with one side of the sealing ring, the outer surface of the sealing ring is fixedly connected with a moving ring, a plurality of sliding grooves are formed in one side of the moving ring, a plurality of sliding blocks are slidably connected to one side of the moving ring through the plurality of sliding grooves, the outer surface of the mounting column is threadedly connected with a mounting ring, when the liquid level sensor needs to be installed in the oil drum, first, the oil drum is punched into the main hole, then the mounting column is pushed into the main hole, in the process, the triangular blocks are gradually pushed into the mounting column and squeezed by the elastic elements, when the triangular blocks completely enter the oil drum, the elastic elements rebound, the triangular blocks reset, then the mounting ring is rotated, the mounting ring is rotated along the threads of the mounting column and moves, at the same time, the moving ring and the sealing ring are moved, the moving ring squeezes the sealing ring to achieve a tight sealing effect, at the same time, the inclined surface provided in the mounting ring is matched with the pre-set inclined surface of the sliding block, after the mounting ring pushes the moving ring closely to the sealing ring, the inclined surface further pushes the plurality of sliding blocks to move to the center and squeeze the sealing ring to achieve further sealing effect and complete installation, the whole installation process only needs to punch a hole once, which reduces the number of holes, reduces the construction amount and reduces the damage to the oil drum, at the same time, it also avoids the trouble of inserting the oil drum when installing the bolts and nuts.

[0014] (2), the winding resistance type fuel oil level sensor, the outer surface of the mounting ring is fixedly connected with an anti-skid ring, the anti-skid ring is made of rubber material, and the anti-skid ring can improve the friction force during operation to avoid injury caused by manual hand slipping during installation. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a partial structure schematic view of the utility model;

[0016] Figure 2 It is a partial structure front view of the utility model;

[0017] Figure 3 It is a partial structure internal front view of the utility model;

[0018] Figure 4 It is a partial structure right view of the utility model.

[0019] In the drawing: 1 - mounting column, 2 - triangular block, 3 - limiting ring, 4 - elastic element, 5 - sealing ring, 6 - sealing ring, 7 - moving ring, 8 - sliding groove, 9 - sliding block, 10 - mounting ring, 11 - resistance module, 12 - swing lever, 13 - oil float, 14 - connecting wire, 15 - connector, 16 - anti-skid ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-4 The utility model provides two technical schemes:

[0022] Embodiment 1: a wire-wound resistance type fuel oil level sensor, including installation column 1 and the sliding connection of a plurality of triangular blocks 2 in the inner surface of installation column 1, the triangular block 2 is generally a right triangle, and the inclined surface faces the oil drum during installation, which can make the edge of the oil drum opening directly push the triangular block 2 into the installation column 1, the outer surface of a plurality of the triangular blocks 2 is fixedly connected with a limiting ring 3, the limiting ring 3 is used for limiting the moving range of the triangular block 2, avoiding the triangular block 2 from sliding out of the installation column 1, a plurality of the limiting rings 3 are all slidingly connected to the inner surface of the installation column 1, a plurality of elastic pieces 4 are fixedly connected between the inner surface of the installation column 1 and the outer surface of a plurality of the triangular blocks 2, the elastic piece 4 is a workpiece with elasticity, and a spring can be selected, the outer surface of the installation column 1 is slidingly connected with a sealing ring 5 and a sealing ring 6, one side of the sealing ring 5 is fixedly connected with one side of the sealing ring 6, and the sealing ring 5 and the sealing ring 6 are all made of oil-resistant rubber material, the outer surface of the sealing ring 6 is fixedly connected with a moving ring 7, a plurality of sliding grooves 8 are formed in one side of the moving ring 7, a plurality of sliding blocks 9 are slidingly connected to one side of the moving ring 7 through a plurality of sliding grooves 8, and the sliding block 9 is an arc-shaped sliding block, the outer surface of the installation column 1 is screwedly connected with a mounting ring 10, an inclined surface is formed in the mounting ring 10, and one side of the sliding block 9 is also provided with an inclined surface. The inclined surfaces of the mounting ring 10 and the sliding block 9 are matched.

[0023] In the embodiment, one end of the installation column 1 is fixedly connected with a resistance module 11, the resistance module 11 is prior art, a wire-wound resistance is arranged in the resistance module 11, a swing rod 12 is rotatably connected to the inner surface of the resistance module 11, one end of the swing rod 12 is fixedly connected with an oil float 13, the oil float 13 is designed to be hollow, can always float on the liquid surface of fuel by virtue of buoyancy, when the liquid level changes, the height of the oil float 13 will also change, at the same time, the oil float 13 will drive the swing rod 12 to rotate, the swing rod 12 can affect the resistance value of the wire-wound resistance in the resistance module 11, one end of the resistance module 11 is electrically connected with a connecting wire 14, and the connecting wire 14 is fixedly connected to the inner surface of the installation column 1; when the connecting wire 14 passes through the installation column 1, corresponding sealing rings are arranged on the installation column 1.

[0024] In this embodiment, one end of 14 is electrically connected with connector 15, connector 15 is prior art, used for leaving interface to connect external electrical equipment, the outer surface of mounting ring 10 is fixedly connected with anti-skid ring 16, the anti-skid ring 16 is rubber material.

[0025] In the embodiment, the wire-wound resistance type fuel oil level sensor comprises a mounting column 1 and a plurality of triangular blocks 2 slidably connected to the inner surface of the mounting column 1, the triangular blocks 2 are generally right-angled triangles, and the inclined surfaces of the triangular blocks 2 are arranged to face the oil tank during installation, so that the edges of the openings of the oil tank can directly push the triangular blocks 2 into the mounting column 1, the outer surfaces of the triangular blocks 2 are fixedly connected with a plurality of limiting rings 3, the limiting rings 3 are used for limiting the movement range of the triangular blocks 2, so as to avoid the triangular blocks 2 from sliding out of the mounting column 1, the limiting rings 3 are slidably connected to the inner surface of the mounting column 1, a plurality of elastic members 4 are fixedly connected between the inner surface of the mounting column 1 and the outer surfaces of the triangular blocks 2, the elastic members 4 are elastic workpieces, and springs can be selected, the outer surface of the mounting column 1 is slidably connected with a sealing ring 5 and a sealing ring 6, one side of the sealing ring 5 is fixedly connected with one side of the sealing ring 6, the sealing ring 5 and the sealing ring 6 are made of oil-resistant rubber, the outer surface of the sealing ring 6 is fixedly connected with a moving ring 7, a plurality of sliding grooves 8 are formed in one side of the moving ring 7, a plurality of sliding blocks 9 are slidably connected to one side of the moving ring 7 through the sliding grooves 8, the sliding blocks 9 are arc-shaped sliding blocks, the outer surface of the mounting column 1 is threadedly connected with a mounting ring 10, a slope is formed in the mounting ring 10, and one side of the sliding block 9 is also provided with a slope.

[0026] In the utility model, the circuit and electronic components are all prior art, and the person skilled in the art can realize them without further description, and the content protected by the utility model does not involve improvement of internal structure and method, and it should be noted that the standard parts used in the utility model can be purchased in the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, and the machinery, parts and equipment adopt the conventional type in the prior art, and the inventor will not make further description.

[0027] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0028] When working, first, the oil drum is punched out the main hole, then the installation column 1 is pushed into the main hole, in the process, the triangular block 2 is gradually pushed into the installation column 1 and extrudes the elastic piece 4 by being limited by the hole edge, when the triangular block 2 completely enters the oil drum, the elastic piece 4 rebounds, the triangular block 2 resets, then the installation ring 10 is rotated, the installation ring 10 rotates and moves along the thread of the installation column 1, at the same time, the moving ring 7 and the sealing ring 6 are pushed to move, when the moving ring 7 moves, the triangular block 2 is matched to press the sealing ring 5 from the inner wall to the outer wall of the oil drum to achieve the effect of tight sealing, at the same time, the slope provided in the installation ring 10 is matched with the slope of the slide block 9, after the installation ring 10 pushes the moving ring 7 to tightly adhere to the sealing ring, the installation ring 10 will further push the plurality of slide blocks 9 to move to the center and extrude the sealing ring 6 to achieve the further sealing effect and complete the installation, the whole installation only needs to punch a hole once, thereby reducing the number of holes, reducing the construction amount and reducing the damage to the oil drum, at the same time, the trouble of needing to stretch into the oil drum when installing the bolt and the nut is also avoided, the above is the working principle of the wire-wound resistance type fuel liquid level sensor.

[0029] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wire-wound resistance fuel level sensor comprising a mounting post (1) and a plurality of triangular blocks (2) slidably connected to the inner surface of the mounting post (1), characterized in that: The outer surface of several triangular blocks (2) is fixedly connected with a limiting ring (3), the limiting ring (3) is slidably connected to the inner surface of the mounting column (1), the inner surface of the mounting column (1) and the outer surface of the triangular block (2) are fixedly connected with the elastic element (4), the outer surface of the mounting column (1) is slidably connected with the sealing ring (5) and the sealing ring (6), one side of the sealing ring (5) is fixedly connected with one side of the sealing ring (6), the outer surface of the sealing ring (6) is fixedly connected with the moving ring (7), the moving ring (7) is slidably connected with the sliding groove (8) on one side of the moving ring (7), the sliding groove (8) on one side of the moving ring (7) is slidably connected with the sliding block (9), and the outer surface of the mounting column (1) is threadedly connected with the mounting ring (10).

2. A wire-wound resistive fuel level sensor according to claim 1, characterized in that: One end of the mounting column (1) is fixedly connected with a resistance module (11), and the resistance module (11) is provided with a wire resistance.

3. A wire wound resistive fuel level sensor as defined in claim 2 wherein: The inner surface of the resistance module (11) is rotatably connected with a swing rod (12), one end of the swing rod (12) is fixedly connected with an oil float (13).

4. A wire-wound resistive fuel level sensor according to claim 3, wherein: One end of the resistance module (11) is electrically connected with a connecting line (14), and the connecting line (14) is fixedly connected to the inner surface of the mounting column (1).

5. A wire wound resistive fuel level sensor as defined in claim 4 wherein: One end of the connecting line (14) is electrically connected with a connector (15).

6. A wire wound resistive fuel level sensor as defined in claim 1 wherein: The outer surface of the mounting ring (10) is fixedly connected with an anti-skid ring (16), and the anti-skid ring (16) is made of rubber.

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