A pipeline photoelectric liquid level sensor

Abstract

The utility model discloses a pipeline formula photoelectric liquid level sensor, including sensor body, electronic wire and belt fastener terminal, the sensor body is connected with the electronic wire between belt fastener terminal, still includes wire protection mechanism, the wire protection mechanism includes top touch board, bottom touch board, muscle tension strip, top buckle board, bottom buckle board and buckle post, through setting wire protection mechanism at sensor body and belt fastener terminal place, the top touch board and bottom touch board of wire protection mechanism are respectively clamped in the outside of electronic wire, then the top buckle board of top touch board and the bottom buckle board of bottom touch board are fixed through buckle post and the slot position of sensor body and belt fastener terminal and are connected two groups of plate body outside top touch board and bottom touch board and form the continuous wire protection structure of outside bottom touch board, the tension that the electronic wire is artificially mistaken to pull when will be dispersed to wire protection mechanism and sensor casing, avoid the electronic wire direct force fracture, have guaranteed the stability of electronic wire connection, reduce the sensor use anomaly that leads to because line fault.

Description

Technical Field

[0001] This utility model relates to the field of photoelectric liquid level sensor technology, and in particular to a pipeline-type photoelectric liquid level sensor. Background Technology

[0002] The photoelectric liquid level sensor utilizes the principle of reflection and refraction of light at the interface of two different media. It is a new type of contact-type point liquid level measurement and control device, featuring single-point detection and TTL-compatible digital level signal output. It is suitable for production in industries such as transportation and military. The working principle of the photoelectric liquid level sensor is as follows: The product contains a light emitter and a light receiver. The light emitted by the emitter is guided to a prism at the top of the sensor. When the liquid submerges the prism, the light is refracted into the liquid, resulting in the light receiver receiving little or no light. By sensing this change in operating conditions, the light receiver can drive an internal electrical switch, thereby activating an external alarm or control circuit. If there is no liquid, the light emitted by the emitter is directly reflected back to the light receiver from the prism.

[0003] Publication (Announcement) No.: CN218035252U discloses a pipeline-type photoelectric liquid level sensor, including a housing structure, a PCBA board and a pipeline structure. The advantages of this photoelectric liquid level sensor are as follows: simple process, low cost, and no need to consider waterproofing issues. At the same time, the liquid flow channel inside the pipeline structure is straight-through, which ensures detection accuracy.

[0004] In existing pipeline-type photoelectric liquid level sensors, electronic wires are connected to buckle terminals on the PCBA board inside the main housing during use. However, when these sensors are manually installed, used, or replaced and maintained inside the machine, the electronic wires lack effective protection, making them prone to breakage due to accidental pulling. This affects the safe use of the pipeline-type photoelectric liquid level sensor. Therefore, we propose a pipeline-type photoelectric liquid level sensor. Utility Model Content

[0005] The main objective of this invention is to provide a pipeline-type photoelectric liquid level sensor. By incorporating a wire protection mechanism at the sensor body and the buckle terminal, the top and bottom contact plates of the wire protection mechanism are respectively fitted onto the outside of the electronic wire. Subsequently, the top buckle plate of the top contact plate and the bottom buckle plate of the bottom contact plate are fixed to the sensor body and the slots of the buckle terminal via buckle posts. Then, the two sets of plates are connected by reinforcing bars to form a protective structure on the outside of the top and bottom contact plates. When the electronic wire is accidentally pulled, the tension is distributed to the wire protection mechanism and the sensor housing, preventing the electronic wire from breaking directly under force. This ensures the stability of the electronic wire connection and reduces sensor malfunctions caused by circuit faults. Furthermore, two sets of reinforcing bars are provided between the top and bottom contact plates, providing an effective tensile strength structure when the electronic wire is stretched, effectively preventing accidental breakage of the electronic wire and effectively solving the problems in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pipeline-type photoelectric liquid level sensor includes a sensor body, an electronic wire, and a buckle terminal. The electronic wire is connected between the sensor body and the buckle terminal. The sensor body also includes a wire protection mechanism, which includes a top contact plate, a bottom contact plate, a reinforcing strip, a top buckle plate, a bottom buckle plate, and a buckle post. The top contact plate and the bottom contact plate are respectively fitted onto the outer sides of the electronic wire near the sensor body and the buckle terminal. The top contact plate has symmetrical protrusions on both sides that clamp the sensor body. The bottom contact plate has symmetrical protrusions on both sides that clamp the buckle terminal. A reinforcing strip is integrally formed between the bottom contact plate and the top contact plate. Buckle posts are protruding on the surfaces of the bottom buckle plate and the top buckle plate. The sensor body and the buckle terminal have upper and lower receiving grooves on their respective sides for clamping the buckle posts.

[0008] Furthermore, the outer sides of the top and bottom buckle plates are provided with L-shaped tie rods, and the ends of the L-shaped tie rods are integrally formed with rib heads.

[0009] By adopting the above technical solution, pinching the L-shaped tie rod can easily pull the top and bottom buckle plates, thereby pulling the buckle posts at the top and bottom buckle plates out of the upper and lower receiving grooves.

[0010] Furthermore, the upper and lower receiving grooves have the same length, and the length of the upper receiving groove is greater than the diameter of the fastening post.

[0011] By adopting the above technical solution, the longer groove cavities of the upper and lower receiving grooves can be easily inserted into or pulled out of the buckle post.

[0012] Furthermore, the surfaces of the top and bottom contact plates are provided with through holes, and electronic wires pass through the through holes.

[0013] By adopting the above technical solution, wires can be threaded through the wire holes at the top and bottom contact plates.

[0014] Furthermore, the top buckle plate has a rounded straight plate protruding from its body, and the surface of the rounded straight plate of the top buckle plate has buckle posts protruding from its surface.

[0015] By adopting the above technical solution, the top buckle plate, with its rounded straight body, can be attached to the upper groove with the buckle post.

[0016] Furthermore, the bottom buckle plate has a rounded straight plate protruding from its body, and the surface of the rounded straight plate of the bottom buckle plate has buckle posts protruding from its surface.

[0017] By adopting the above technical solution, the bottom buckle plate, with its rounded straight body, can be used in conjunction with the buckle post to block the lower groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model incorporates a wire protection mechanism at the sensor body and buckle terminal. The top and bottom contact plates of the wire protection mechanism are respectively fitted onto the outside of the electronic wire. Subsequently, the top buckle plate of the top contact plate and the bottom buckle plate of the bottom contact plate are fixed to the slots of the sensor body and buckle terminal by buckle posts. Then, the two sets of plates are connected by a tie rod to form a connecting protection structure on the outside of the top and bottom contact plates. When the electronic wire is accidentally pulled, the tension is distributed to the wire protection mechanism and the sensor housing, preventing the electronic wire from breaking directly due to force, ensuring the stability of the electronic wire connection, and reducing sensor malfunctions caused by circuit faults.

[0020] Furthermore, two sets of reinforcing bars are provided between the top and bottom contact plates, which provides an effective tensile strength structure for the electronic wires between the top and bottom contact plates when they are stretched, effectively preventing the electronic wires from being accidentally broken. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a pipeline-type photoelectric liquid level sensor according to the present invention.

[0022] Figure 2 This is an exploded view of the wire protection mechanism of a pipeline-type photoelectric liquid level sensor according to this utility model.

[0023] In the diagram: 1. Sensor body; 2. Electronic wire; 3. Buckle terminal; 4. Wire protection mechanism; 5. Top contact plate; 6. Bottom contact plate; 7. Wire hole; 8. Rib strip; 9. Top buckle plate; 10. Bottom buckle plate; 11. L-shaped tie rod; 12. Buckle post; 13. Upper receiving groove; 14. Lower receiving groove. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-2 As shown, a pipeline-type photoelectric liquid level sensor includes a sensor body 1, an electronic wire 2, and a buckle terminal 3. The electronic wire 2 is connected between the sensor body 1 and the buckle terminal 3. The sensor body 1 also includes a wire protection mechanism 4, which includes a top contact plate 5, a bottom contact plate 6, a reinforcing strip 8, a top buckle plate 9, a bottom buckle plate 10, and a buckle post 12. The top contact plate 5 and the bottom contact plate 6 are respectively fitted onto the outer sides of the electronic wire 2 near the sensor body 1 and the buckle terminal 3. The top contact plate 5 has symmetrical protrusions on both sides of its outer surface, with the top buckle plate 9 clamping the sensor body 1. The bottom contact plate 6 has symmetrical protrusions on both sides of its outer surface, with the bottom buckle plate 10 clamping the buckle terminal 3. The bottom contact plate 6 and the top contact plate 5 are integrally formed with a reinforcing strip 8. The bottom buckle plate 10 and the top buckle plate 9 have buckle posts 12 protruding from their surfaces. The sensor body 1 and the buckle terminal 3 have upper receiving grooves 13 and lower receiving grooves 14 on their respective sides for clamping the buckle posts 12.

[0026] Among them, the outer side of the top buckle plate 9 and the bottom buckle plate 10 are provided with L-shaped tie rods 11, and the ends of the L-shaped tie rods 11 are integrally formed with rib heads.

[0027] By adopting the above technical solution, the top buckle plate 9 and the bottom buckle plate 10 can be easily pulled by pinching the L-shaped tie rod 11, thereby pulling the buckle post 12 at the top buckle plate 9 and the bottom buckle plate 10 out of the upper receiving groove 13 and the lower receiving groove 14.

[0028] The upper receiving groove 13 and the lower receiving groove 14 have the same length, and the length of the upper receiving groove 13 is greater than the diameter of the buckle post 12.

[0029] By adopting the above technical solution, the longer grooves of the upper receiving groove 13 and the lower receiving groove 14 can be easily inserted into or pulled out of the buckle post 12.

[0030] Among them, the top contact plate 5 and the bottom contact plate 6 are provided with through holes 7, and electronic wires 2 are passed through the through holes 7.

[0031] By adopting the above technical solution, the electronic wire 2 can be passed through the wire hole 7 at the top contact plate 5 and the bottom contact plate 6.

[0032] Among them, the top buckle plate 9 has a round-headed straight plate protruding from its plate body, and the surface of the round-headed straight plate of the top buckle plate 9 has a buckle post 12 protruding from its surface.

[0033] By adopting the above technical solution, the top buckle plate 9, with its round-headed straight plate body, can be attached to the upper receiving groove 13 in conjunction with the buckle post 12.

[0034] Among them, the bottom buckle plate 10 has a round-headed straight plate protruding from the plate body, and the round-headed straight plate of the bottom buckle plate 10 has a buckle post 12 protruding from its surface.

[0035] By adopting the above technical solution, the bottom buckle plate 10, with its round-headed straight plate body, can be fitted with the buckle post 12 and attached to the lower receiving groove 14.

[0036] It should be noted that this utility model is a pipeline-type photoelectric liquid level sensor. By setting a wire protection mechanism 4 at the sensor body 1 and the buckle terminal 3, the electronic wire 2 between the buckle terminal 3 and the sensor body 1 can pass through the wire hole 7 of the top contact plate 5 and the bottom contact plate 6 when connected. Then, the electronic wire 2 is normally connected between the buckle terminal 3 and the sensor body 1. The buckle post 12 at the top buckle plate 9 of the top contact plate 5 can be fastened into the upper receiving groove 13 of the sensor body 1. Then, the buckle post 12 at the bottom contact plate 6 can be fastened into the lower receiving groove 14 of the buckle terminal 3. When the sensor body 1 is manually moved to the equipment for installation, the top contact plate 5 and the bottom contact plate 6 combined with the tie bar 8 form a tensile structure to prevent the electronic wire 2 from being accidentally broken. At the same time, the strip of the tie bar 8 can be made of elastic plastic, so that the tie bar 8 can deform with the electronic wire 2, which facilitates the installation and use of the electronic wire 2 between the sensor body 1 and the buckle terminal 3 by changing the angle.

[0037] It should be noted that this utility model is a pipeline-type photoelectric liquid level sensor. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipeline-type photoelectric liquid level sensor, comprising a sensor body (1), an electronic wire (2), and a buckle terminal (3), wherein the electronic wire (2) is connected between the sensor body (1) and the buckle terminal (3), characterized in that: It also includes a wire protection mechanism (4), which includes a top contact plate (5), a bottom contact plate (6), a reinforcing strip (8), a top buckle plate (9), a bottom buckle plate (10), and a buckle post (12). The electronic wire (2) is fitted with a top contact plate (5) and a bottom contact plate (6) respectively outside the wire body near the sensor body (1) and the buckle terminal (3). The top contact plate (5) has a top buckle plate (9) that is symmetrically protruding from both sides of the top contact plate (5) and is clamped outside the sensor body (1). The bottom contact plate (6) is a top contact plate (9) that is clamped outside the sensor body (1). The two sides of the contact plate (6) have symmetrical protrusions on the outer side of the plate body, which are clamped outside the buckle terminal (3). The bottom contact plate (6) and the top contact plate (5) are integrally formed with a rib strip (8). The bottom buckle plate (10) and the top buckle plate (9) have protrusions on the plate body surface, and buckle posts (12) are provided on the two sides of the housing of the sensor body (1) and the buckle terminal (3) respectively for clamping the buckle posts (12).

2. The pipeline-type photoelectric liquid level sensor according to claim 1, characterized in that: The top plate (9) and bottom plate (10) have L-shaped tie rods (11) protruding on their outer sides, and the ends of the L-shaped tie rods (11) are integrally formed with rib heads.

3. The pipeline-type photoelectric liquid level sensor according to claim 1, characterized in that: The upper receiving groove (13) and the lower receiving groove (14) have the same groove length, and the groove length of the upper receiving groove (13) is greater than the diameter of the column of the buckle (12).

4. A pipeline-type photoelectric liquid level sensor according to claim 1, characterized in that: The top contact plate (5) and the bottom contact plate (6) have through holes (7) on their surfaces, and an electronic wire (2) passes through the through hole (7).

5. A pipeline-type photoelectric liquid level sensor according to claim 1, characterized in that: The top buckle plate (9) has a round-headed straight plate protruding from its body, and buckle posts (12) protruding from the surface of the round-headed straight plate of the top buckle plate (9).

6. A pipeline-type photoelectric liquid level sensor according to claim 1, characterized in that: The bottom buckle plate (10) has a round-headed straight plate protruding from its body, and the surface of the round-headed straight plate of the bottom buckle plate (10) has a buckle post (12) protruding from its surface.

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