A swing type material level switch
By designing a mechanical swing level switch, the material height detection is performed using the combination of swing rod and return spring, the problem of insufficient power loss and reliability of existing level switches is solved, and the measurement effect of high stability and wide adaptability is achieved.
Patent Information
- Application Number
- CN202411969826.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-04-08
AI Technical Summary
Existing level switches have problems such as power loss, insufficient measurement stability and reliability, and limited adaptation range.
A swing level switch is designed, and a mechanical measurement method is used to detect the material height through the combination of the swing rod and the return spring, and adjust the torque through the torque adjustment screw to adapt to materials of different specific gravity.
It has achieved measurement without power loss, high stability and reliability, wide adaptability, and is suitable for chemical, plastic, cement and other industries.
Smart Images
Figure CN119786287A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of material level switches, and in particular to a swing type material level switch. Background Art
[0002] The material level switch is mainly used for measuring the high and low material levels or intermediate material levels of containers and storage tanks. It is fixedly installed on the top, side, and bottom of the silo through threads or flanges. The material level switch has been widely used in chemical, plastic, cement, medicine, feed, food and other industries. At present, there are various types of material level switches on the market, including rotary paddle material level switches, tuning fork material level switches, capacitive material level switches, etc. However, there is power loss during use, and the stability of the measurement structure is general, the reliability is insufficient, and the scope of application has certain limitations. Based on this, it is particularly necessary to design a new type of pendulum material level switch. Summary of the invention
[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a swing type material level switch with simple structure, reasonable design, easy use, no power loss, good measurement stability, high reliability, safety and practicality, wide adaptability, and easy promotion and use.
[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a swing type material level switch, including a shell, a shell cover, a connecting tooth head, a rocker arm, a connecting rod, a rocker mark, a reset spring, a reset bracket, a switch bracket, a micro switch, a torque adjustment screw, a positioning seat, a positioning pin and a wire inlet, the shell cover is installed on the top of the shell, the connecting tooth head is installed on the lower end of the shell, the reset spring and the reset bracket are installed inside the shell, and the micro switch is also fixed in the shell through the switch bracket, the micro switch is connected to one end of the reset spring, and the other end of the reset spring is connected to the upper end of the rocker arm through the reset bracket, the rocker arm is installed on the positioning seat through the positioning pin, the positioning seat is fixed in the connecting tooth head, and the lower end of the rocker arm is connected and fixed to the rocker mark through the connecting rod; a torque adjustment screw for adjusting torque is installed inside the shell, and a wire inlet is provided on the side of the shell, and the wires connected to the micro switch pass through the wire inlet.
[0005] Preferably, the pendulum rod and the positioning pin are combined into a pendulum body, one end of the pendulum rod is connected to a mechanical switch structure composed of a reset spring, a reset bracket, a switch bracket, and a micro switch inside the shell, and the other end of the pendulum rod extends out of the shell to detect the material height; a first sealing ring is provided at the connection between the pendulum rod and the positioning seat.
[0006] Preferably, the housing cover is screwed onto the housing, and a second sealing ring is provided at the connection between the housing cover and the housing.
[0007] Preferably, the torque adjustment screw is used to adjust the torque for materials of different specific gravities to obtain the best switch driving force.
[0008] The beneficial effects of the present invention are as follows: the device is easy to use, has no power loss when switched, has good measurement stability, high reliability, is safe and practical, has a wide range of adaptability, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;
[0010] Figure 1 It is a schematic diagram of the external structure of the present invention;
[0011] Figure 2 It is a schematic diagram of the internal structure of the present invention. DETAILED DESCRIPTION
[0012] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0013] Reference Figure 1-2 , this specific embodiment adopts the following technical scheme: a swing type material level switch, including a shell 1, a shell cover 2, a connecting tooth head 3, a swing rod 4, a connecting rod 5, a swing mark 6, a reset spring 7, a reset bracket 8, a switch bracket 9, a micro switch 10, a torque adjustment screw 11, a positioning seat 12, a positioning pin 13 and a wire entry port 14, the shell cover 2 is installed on the top of the shell 1, the connecting tooth head 3 is installed on the lower end of the shell 1, the reset spring 7 and the reset bracket 8 are installed inside the shell 1, and the shell 1 is also fixed by the switch bracket 9 There is a micro switch 10, which is connected to one end of the reset spring 7. The other end of the reset spring 7 is connected to the upper end of the rocker arm 4 through the reset bracket 8. The rocker arm 4 is installed on the positioning seat 12 through the positioning pin 13. The positioning seat 12 is fixed in the connecting tooth head 3. The lower end of the rocker arm 4 is connected and fixed to the rocker mark 6 through the connecting rod 5; a torque adjusting screw 11 for adjusting the torque is installed inside the shell 1, and a wire entry port 14 is provided on the side of the shell 1, and the wires connected to the micro switch 10 pass through the wire entry port 14.
[0014] It is worth noting that a first sealing ring 15 is provided at the connection between the rocker arm 4 and the positioning seat 12; the housing cover 2 is screwed and installed on the housing 1, and a second sealing ring 16 is provided at the connection between the housing cover 2 and the housing 1, so as to improve the sealing performance of the material level switch in different usage scenarios.
[0015] In this specific embodiment, the pendulum 4 and the positioning pin 13 are combined into a pendulum body. One end of the pendulum 4 is connected to the mechanical switch structure composed of the reset spring 7, the reset bracket 8, the switch bracket 9, and the micro switch 10 inside the housing 1, and the other end of the pendulum 4 extends out of the housing 1 to detect the material height. When the equipment is working, the material is put into the material. When the material is continuously accumulated and contacts the extended pendulum 4, the upper end of the pendulum 4 will be pushed to press the mechanical switch inside the housing 1, triggering the contact signal, thereby measuring the material level. The device can detect materials at different heights by changing the length of the pendulum 4. At the same time, for materials with different specific gravities, the torque is adjusted by adjusting the torque adjustment screw 11 to obtain the best switch driving force.
[0016] This specific implementation method uses a mechanical measurement method to measure the material height, has no power loss, and the measurement results are stable and reliable. It has the advantage of a wide range of adaptability to different industries and has broad market application prospects.
[0017] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A swing type material level switch, characterized in that: The invention comprises a housing (1), a housing cover (2), a connecting thread head (3), a swing rod (4), a connecting rod (5), a swing mark (6), a reset spring (7), a reset bracket (8), a switch bracket (9), a micro switch (10), a torque adjustment screw (11), a positioning seat (12), a positioning pin (13) and a wire inlet (14); the housing cover (2) is installed on the top of the housing (1); the connecting thread head (3) is installed on the lower end of the housing (1); the reset spring (7) and the reset bracket (8) are installed inside the housing (1); and the micro switch (10) is fixed inside the housing (1) via the switch bracket (9). The micro switch (10) is connected to one end of a reset spring (7), the other end of the reset spring (7) is connected to the upper end of the rocker arm (4) through a reset bracket (8), the rocker arm (4) is mounted on a positioning seat (12) through a positioning pin (13), the positioning seat (12) is fixed in a connecting tooth head (3), and the lower end of the rocker arm (4) is connected and fixed to a rocker mark (6) through a connecting rod (5); a torque adjusting screw (11) for adjusting torque is installed inside the housing (1), and a wire inlet (14) is provided on the side of the housing (1), and the wire connected to the micro switch (10) passes through the wire inlet (14).
2. A swing type material level switch according to claim 1, characterized in that: The pendulum (4) and the positioning pin (13) are combined into a pendulum body. One end of the pendulum (4) is connected to a mechanical switch structure composed of a reset spring (7), a reset bracket (8), a switch bracket (9), and a micro switch (10) inside the housing 1, and the other end of the pendulum (4) extends out of the housing (1) to detect the material height.
3. A swing type material level switch according to claim 1, characterized in that: A first sealing ring (15) is provided at the connection between the swing rod (4) and the positioning seat (12).
4. A swing type material level switch according to claim 1, characterized in that: The housing cover (2) is screwed and mounted on the housing (1), and a second sealing ring (16) is provided at the connection between the housing cover (2) and the housing (1).
5. The swing type material level switch according to claim 1, characterized in that: The torque adjustment screw (11) is used to adjust the torque for materials of different specific gravities to obtain the corresponding switch driving force.