Tuning fork liquid level switch

Abstract

The utility model provides a kind of tuning fork liquid level switch, including terminal box, the middle part position of terminal box bottom is equipped with threaded joint, the upper end of threaded joint is equipped with the hexahedron connected fixed with threaded joint, two symmetrical arrangement fork body are installed in the lower end of threaded joint, the disc body is equipped in the lower side of hexahedron, the disc body is sleeved on threaded joint and is connected fixed with threaded joint, the lower side of disc body is equipped with compression ring, the compression ring is sleeved on threaded joint, the upper surface of disc body is screw-connected with two for extruding compression ring's compression screw, the utility model has the beneficial effect as follows: it is realized after the close connection of tuning fork liquid level switch and container makes threading pipe towards cable layout path direction.

Description

Technical Field

[0001] This utility model is a tuning fork liquid level switch, belonging to the field of liquid level switches. Background Technology

[0002] A tuning fork level switch contains a tuning fork. When the tuning fork is immersed in liquid or comes into contact with solid material, its vibration frequency changes. The electronic circuit inside the sensor detects this change in frequency to determine if the material has reached the set level. When the set level is reached, the switch outputs a corresponding signal, such as closing or opening a relay contact. Threaded connection is a common installation method for tuning fork level switches. The switch has a threaded connector that connects to the threaded connection on the container. The junction box within the switch has an inlet pipe. After the threaded connector is connected to the container, the inlet pipe's orientation can easily be opposite to the cable routing path. This can cause the cable to bend before passing through the inlet pipe, resulting in excessive bending near the switch. Specifically, the cable end near the junction box may be bent 180°, potentially causing a power failure in the tuning fork level switch. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tuning fork level switch to solve the problems mentioned in the background technology. This utility model realizes that after the tuning fork level switch is tightly connected to the container, the conduit is oriented in the direction of the cable laying path.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a tuning fork level switch, including a junction box, a threaded connector installed at the bottom center of the junction box, a hexahedron fitted onto the upper end of the threaded connector and fixed to the threaded connector, two symmetrically arranged fork bodies installed at the lower end of the threaded connector, a disc body provided on the lower side of the hexahedron, the disc body fitted onto the threaded connector and fixed to the threaded connector, a pressure ring provided on the lower side of the disc body, the pressure ring fitted onto the threaded connector, and two clamping screws for pressing the pressure ring threadedly connected to the upper surface of the disc body.

[0005] Furthermore, two vertical holes are symmetrically opened on the upper surface of the disc body, and a U-shaped plate is provided directly above each of the two vertical holes. Both ends of the U-shaped plate are connected and fixed to the disc body. A through hole is opened on the upper surface of the horizontal part of the U-shaped plate, which is aligned with the vertical hole. A nut is provided between the through hole and the vertical hole. The two parallel sides of the nut are respectively attached to the two vertical inner walls of the U-shaped plate. The clamping screw is threaded into the nut and passes through the through hole and the vertical hole.

[0006] Furthermore, the position where the U-shaped plate is installed on the disc body is recessed downward to form a strip groove, and the end of the U-shaped plate is installed in the strip groove.

[0007] Furthermore, the upper surface of the disc body is provided with a first arc-shaped opening and a second arc-shaped opening, the first arc-shaped opening and the second arc-shaped opening are symmetrically arranged about the threaded joint, and the first arc-shaped opening, the second arc-shaped opening and the two vertical holes are arranged alternately.

[0008] Furthermore, the upper surface of the pressure ring is provided with a plurality of ribs that are equidistantly arranged in a ring. The ribs are arranged along the radial direction of the pressure ring and are integrally formed with the pressure ring.

[0009] Furthermore, the junction box has an open top, a cover is threaded onto the top of the junction box, and two inlet pipes are installed on the outer surface of the junction box.

[0010] Furthermore, the outer surface of the box cover is recessed to form multiple grooves, and the multiple grooves are arranged in a ring at equal intervals.

[0011] The beneficial effects of this utility model are:

[0012] 1. Insert the nut into the space formed by the U-shaped plate and the disc body, and arrange the nut, through hole and vertical hole concentrically. The clamping screw is threaded into the nut and passes through the through hole and vertical hole, thereby completing the threaded connection between the clamping screw and the disc body, that is, completing the assembly of the nut and the disc body. There is no need to install the clamping screw by increasing the thickness of the disc body and opening screw holes on the disc body.

[0013] 2. When screwing the threaded connector into the threaded connection on the container, place the pressure ring on the threaded connector, ensuring that the end of the threaded connector closest to the hexahedron is outside the threaded connection on the container, and that the inlet pipe faces the direction of the cable routing path. At this point, the threaded connector is not stably connected to the container. Tighten the clamping screw to compress the pressure ring. Under the pressure, the pressure ring will fit tightly against the threaded connection on the container, thus keeping the relative position of the threaded connector and the container unchanged. This ensures that after the tuning fork level switch is tightly connected to the container, the conduit faces the direction of the cable routing path, preventing the end of the cable near the junction box from bending 180°. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of a tuning fork level switch according to the present invention;

[0016] Figure 2This is an assembly diagram of the disc body, threaded connector, and junction box in a tuning fork level switch according to this utility model.

[0017] Figure 3 This is a perspective view of the pressure ring in a tuning fork level switch according to this utility model;

[0018] In the diagram: 1-junction box, 2-panel body, 3-first arc-shaped opening, 4-hexagonal body, 5-pressure ring, 6-threaded connector, 7-fork body, 8-rib, 9-U-shaped plate, 10-nut, 11-clamping screw, 12-second arc-shaped opening, 13-inlet pipe, 14-box cover, 15-through hole, 16-vertical hole. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a tuning fork level switch, including a junction box 1, a threaded connector 6 installed at the bottom center of the junction box 1, a hexahedron 4 fitted on the upper end of the threaded connector 6 and fixed thereto, two symmetrically arranged fork bodies 7 installed at the lower end of the threaded connector 6, the upper end of the junction box 1 is open, a cover 14 is threadedly connected to the upper end of the junction box 1, two inlet pipes 13 are installed on the outer surface of the junction box 1, and the outer surface of the cover 14 is recessed to form multiple grooves, which are arranged in a ring at equal intervals. The grooves increase the friction coefficient of the cover 14 surface, making it easier to turn the cover 14.

[0021] See Figures 1-3 A disc 2 is provided on the lower side of the hexahedron 4. The disc 2 is fitted onto the threaded connector 6 and is connected and fixed to the threaded connector 6. A pressure ring 5 is provided on the lower side of the disc 2. The pressure ring 5 is fitted onto the threaded connector 6. Two clamping screws 11 for squeezing the pressure ring 5 are threadedly connected to the upper surface of the disc 2. When the threaded connector 6 is screwed into the threaded connection part on the container, the pressure ring 5 is fitted onto the threaded connector 6, so that the end of the threaded connector 6 near the hexahedron 4 is outside the threaded connection part on the container, and the inlet pipe 13 is facing the direction of the cable laying path. At this time, the threaded connector 6 is not stably connected to the container. Tighten the clamping screws 11 to squeeze the pressure ring 5. Under the action of the clamping force, the pressure ring 5 is tightly fitted to the threaded connection part on the container, so that the relative position of the threaded connector 6 and the container remains unchanged. After the tuning fork level switch is tightly connected to the container, the cable conduit is facing the direction of the cable laying path, preventing the end of the cable near the junction box 1 from bending 180°.

[0022] See Figures 1-3Two vertical holes 16 are symmetrically formed on the upper surface of the disc body 2. A U-shaped plate 9 is provided directly above each of the two vertical holes 16. Both ends of the U-shaped plate 9 are connected and fixed to the disc body 2. A through hole 15 is formed on the upper horizontal part of the U-shaped plate 9, which is aligned with the vertical holes 16. A nut 10 is provided between the through hole 15 and the vertical hole 16. The two parallel sides of the nut 10 are respectively attached to the two vertical inner walls of the U-shaped plate 9. A clamping screw 11 is threaded into the nut 10 and passes through the through hole 15 and the vertical hole 16, so that the nut 10 is inserted into the space formed by the U-shaped plate 9 and the disc body 2, and the nut 10 is aligned with the through hole 15. The vertical holes 16 are arranged concentrically. The clamping screw 11 is threaded into the nut 10 and passes through the through hole 15 and the vertical hole 16, thus completing the threaded connection between the clamping screw 11 and the disc 2. This completes the assembly of the nut 10 and the disc 2. There is no need to increase the thickness of the disc 2 or open screw holes on the disc 2 to install the clamping screw 11. The upper surface of the pressure ring 5 is equipped with multiple ribs 8 in a ring at equal intervals. The ribs 8 are arranged along the radial direction of the pressure ring 5. The ribs 8 and the pressure ring 5 are integrally formed. The design of the ribs 8 improves the structural strength of the pressure ring 5 and helps to reduce the thickness of the pressure ring 5.

[0023] See Figure 1 and Figure 2 The disc body 2 is recessed downward at the position where the U-shaped plate 9 is installed to form a strip groove, so that the end of the U-shaped plate 9 is installed in the strip groove, which improves the stability of the connection between the U-shaped plate 9 and the disc body 2. The upper surface of the disc body 2 is provided with a first arc-shaped opening 3 and a second arc-shaped opening 12. The first arc-shaped opening 3 and the second arc-shaped opening 12 are symmetrically arranged about the threaded joint 6. The first arc-shaped opening 3, the second arc-shaped opening 12 and the two vertical holes 16 are arranged alternately. The first arc-shaped opening 3 and the second arc-shaped opening 12 play the role of reducing the amount of material used in the production of the disc body 2.

[0024] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tuning fork level switch, comprising a junction box (1), characterized in that: A threaded connector (6) is installed at the bottom center of the junction box (1). A hexahedron (4) is fitted on the upper end of the threaded connector (6) and fixed to the threaded connector (6). Two symmetrically arranged forks (7) are installed on the lower end of the threaded connector (6). A disc (2) is provided on the lower side of the hexahedron (4). The disc (2) is fitted on the threaded connector (6) and fixed to the threaded connector (6). A pressure ring (5) is provided on the lower side of the disc (2). The pressure ring (5) is fitted on the threaded connector (6). Two clamping screws (11) for squeezing the pressure ring (5) are threadedly connected to the upper surface of the disc (2).

2. The tuning fork level switch according to claim 1, characterized in that: Two vertical holes (16) are symmetrically opened on the upper surface of the disc (2). A U-shaped plate (9) is provided directly above each of the two vertical holes (16). Both ends of the U-shaped plate (9) are connected and fixed to the disc (2). A through hole (15) is opened on the upper surface of the horizontal part of the U-shaped plate (9) and is aligned with the vertical hole (16). A nut (10) is provided between the through hole (15) and the vertical hole (16). The two parallel sides of the nut (10) are respectively attached to the two vertical inner walls of the U-shaped plate (9). The clamping screw (11) is threaded in the nut (10). The clamping screw (11) passes through the through hole (15) and the vertical hole (16).

3. A tuning fork level switch according to claim 2, characterized in that: The disc body (2) is recessed downward at the position where the U-shaped plate (9) is installed to form a strip groove, and the end of the U-shaped plate (9) is installed in the strip groove.

4. A tuning fork level switch according to claim 2, characterized in that: The upper surface of the disc (2) is provided with a first arc-shaped opening (3) and a second arc-shaped opening (12). The first arc-shaped opening (3) and the second arc-shaped opening (12) are symmetrically arranged about the threaded joint (6). The first arc-shaped opening (3), the second arc-shaped opening (12) and the two vertical holes (16) are arranged alternately.

5. A tuning fork level switch according to claim 1, characterized in that: The upper surface of the pressure ring (5) is provided with a plurality of ribs (8) arranged in a ring at equal intervals. The ribs (8) are arranged along the radial direction of the pressure ring (5). The ribs (8) and the pressure ring (5) are integrally formed.

6. A tuning fork level switch according to claim 1, characterized in that: The junction box (1) has an open top and a cover (14) is threaded onto the top. Two inlet pipes (13) are installed on the outer surface of the junction box (1).

7. A tuning fork level switch according to claim 6, characterized in that: The outer surface of the box cover (14) is recessed to form multiple grooves, and the multiple grooves are arranged in a ring at equal intervals.

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