High-temperature-resistant rotation-resistant material level switch

Abstract

The utility model relates to a high-temperature-resistant rotation-resistant material level switch, which belongs to the field of rotation-resistant material level switches, and comprises a relay pipe, the inner wall of the relay pipe is provided with a heat insulation mechanism for improving the high-temperature-resistant effect, and the upper end and the lower end of the relay pipe are provided with connecting mechanisms connected with the switch. According to the high-temperature-resistant rotation-resistant material level switch, the heat insulation mechanism effectively isolates high temperature through the internal heat insulation layer and the heat-resistant layer, mechanical parts and electronic elements in equipment are protected, damage caused by the high temperature is avoided, due to the fact that the heat insulation effect is good, the equipment can stably operate in a high-temperature environment and is not affected by external temperature fluctuation, and the service life of the equipment is prolonged. The reliability of the equipment is improved, the service life of the equipment is prolonged, thermal stress caused by temperature changes is reduced through the heat insulation mechanism, the structural integrity of the equipment is protected, the fault risk caused by the thermal stress is reduced, and through the design of the heat dissipation fins, the heat dissipation sleeve and the high-speed heat dissipation fan, the heat insulation mechanism not only insulates heat, but also enhances the heat dissipation effect; the temperature of equipment is effectively controlled, and overheating is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary vane level switches, in particular to a high-temperature resistant rotary vane level switch. Background Technique

[0002] A rotary vane level switch, also known as a rotary switch or a rotary vane switch, uses a mechanical rotating component to detect the presence and position of materials. When the material level rises to a certain predetermined height and touches the rotary vane, the switch will send a signal, thereby realizing the monitoring and control of the material position.

[0003] For example, a high-temperature resistant rotary vane level switch disclosed in Chinese Patent Publication No. (CN207503057U) includes a driving motor, a motor rod, a vane rod and a vane. The axis of the motor rod is collinear with the axis of the vane rod. A driving disc is provided at the end of the motor rod close to the vane rod. A set distance is left between the driving disc and the vane rod. Two first driving rods are provided on the side of the driving disc close to the vane rod. The two first driving rods are symmetrically distributed on both sides of the axis of the vane rod. A second driving rod is provided between the two first driving rods. The second driving rod passes through the vane rod and is used to drive the vane rod to rotate. The high-temperature resistant rotary vane level switch provided by this utility model can have a long service life.

[0004] However, in the prior art exemplified by the above-mentioned disclosed patent, there is still a problem that the high-temperature resistance effect of the level switch is poor. For example, in the prior art, the vane is connected to the driving motor through a driving disc and other structures, and the driving disc structure is used to disperse the temperature to achieve high-temperature resistance. Although the diameter of the connection part is reduced and changed to multi-point connection in this way, the thermal conductivity of its material has not changed. When the vane rod is heated and transfers upward, although it will be hindered to a certain extent, it can only delay the transfer of temperature to the motor and cannot effectively isolate the influence of high temperature on the motor. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a high-temperature resistant rotary vane level switch, which has the advantages of good high-temperature resistance effect, etc., and solves the problem that the high-temperature resistance effect of the level switch in the prior art is poor.

[0006] To achieve the above object, the utility model provides the following technical solution: A high-temperature resistant rotary vane level switch includes a relay pipe, an insulating mechanism for improving the high-temperature resistance effect is provided on the inner wall of the relay pipe, and connection mechanisms for connecting and installing with the switch are provided at the upper and lower ends of the relay pipe;

[0007] The heat insulation mechanism includes an internal heat insulation layer fixed to the inner wall of the relay pipe. A heat-resistant layer is fixed to the outside of the relay pipe. Heat dissipation fins are fixed inside the internal heat insulation layer. Two bearings are sleeved outside the relay pipe. A heat dissipation sleeve is fixed to the outside of the two bearings. An air inlet is opened on the left side of the heat dissipation sleeve, and an air inlet pipe is fixed to the inner wall of the air inlet. A high-speed heat dissipation fan is vertically fixed to the inner wall of the air inlet pipe. An air outlet is opened on the right side of the heat dissipation sleeve.

[0008] Furthermore, a plurality of heat dissipation openings are opened on one side of the relay pipe and the internal heat insulation layer located inside the heat dissipation sleeve.

[0009] Furthermore, a dust-proof net is fixed to the inner wall of the air inlet pipe and on the left side of the high-speed heat dissipation fan.

[0010] Furthermore, the internal heat insulation layer is a high-temperature resistant plastic layer, and the heat-resistant layer is a ceramic layer.

[0011] Furthermore, the connection mechanism includes connection sleeves fixed to the upper and lower ends of the relay pipe. Connection shafts are inserted into the inner walls of the two connection sleeves. Adjustment grooves are opened on the left and right inner walls of the two connection sleeves. Clamping plates are slidably arranged on the inner walls of the left and right adjustment grooves. Adjusting screws are fixed to the opposite sides of the left and right clamping plates. A switch body is fixed to the top end of the upper connection shaft, and a blade is fixed to the bottom end of the lower connection shaft.

[0012] Furthermore, clamping grooves with the same size as the clamping plates are opened on the left and right sides of the two connection shafts, and the shape of the clamping plate is arc-shaped.

[0013] Furthermore, connection holes are opened on the left and right sides of the connection sleeve, and the adjusting screw is slidably connected along the inner wall of the connection hole. Locking nuts are threadedly connected to the outside of the four adjusting screws.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] 1. For this high-temperature resistant and anti-rotation type level switch, the heat insulation mechanism effectively isolates high temperature through the internal heat insulation layer and the heat-resistant layer, protecting the mechanical components and electronic components inside the equipment from being damaged due to high temperature. Due to the good heat insulation effect, the equipment can operate stably in a high-temperature environment without being affected by external temperature fluctuations, improving the reliability and service life of the equipment. The heat insulation mechanism reduces the thermal stress caused by temperature changes, protects the structural integrity of the equipment, and reduces the risk of failure caused by thermal stress. Through the design of heat dissipation fins, heat dissipation sleeves and high-speed heat dissipation fans, the heat insulation mechanism not only insulates heat but also enhances the heat dissipation effect, effectively controlling the temperature of the equipment and preventing overheating.

[0016] 2. The high-temperature resistant blocking-rotation type level switch. Through the design of the connecting mechanism with a connecting sleeve, a connecting shaft and a clamping plate, the stable connection between the relay pipe and the motor and the blade is ensured, reducing the failures caused by unstable connection. The design of the adjusting groove and the adjusting screw allows users to flexibly adjust the position and angle of the blade according to needs, improving the adaptability and flexibility of the device. The design of the clamping groove and the clamping plate ensures the precise positioning of the blade on the connecting shaft, improving the accuracy of material detection and reducing the possibility of false alarms or missed alarms. The design of the connecting mechanism simplifies the installation and maintenance process, enabling users to conveniently install, adjust and replace components, improving work efficiency. The adjusting screw is fixed by a locking nut to ensure the stability and durability of the connection, reducing equipment failures caused by loose connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic diagram of the heat insulation mechanism of the present utility model;

[0019] Figure 3 is a partial schematic diagram of the heat insulation mechanism of the present utility model;

[0020] Figure 4 is a schematic diagram of the connecting mechanism of the present utility model;

[0021] Figure 5 For the present utility model Figure 4 is an enlarged schematic diagram of the mechanism at position A in

[0022] In the figure: 1 relay pipe, 2 heat insulation mechanism, 21 internal heat insulation layer, 22 heat-resistant layer, 23 heat dissipation fins, 24 bearing, 25 heat dissipation sleeve, 26 air inlet pipe, 27 high-speed heat dissipation fan, 28 air outlet, 29 dust-proof net, 3 connecting mechanism, 31 connecting sleeve, 32 connecting shaft, 33 adjusting groove, 34 clamping plate, 35 adjusting screw, 36 switch body, 37 blade, 38 clamping groove, 39 locking nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1, A high-temperature resistant rotary vane level switch in this embodiment includes a relay pipe 1. An inner wall of the relay pipe 1 is provided with a heat insulation mechanism 2 for improving the high-temperature resistance effect. The relay pipe 1 is a key component connecting the motor and the vane 37. The heat insulation mechanism 2 is provided inside to prevent high temperature from being transmitted to the external switch body 36. Connection mechanisms 3 for connecting and installing with the switch are provided at the upper and lower ends of the relay pipe 1.

[0025] Please refer to Figures 2 to 3 , To improve the high-temperature resistance effect, the heat insulation mechanism 2 in this embodiment includes an internal heat insulation layer 21 fixed to the inner wall of the relay pipe 1. The internal heat insulation layer 21 is fixed to the inner wall of the relay pipe 1 and is made of high-temperature resistant plastic, which plays a role in isolating the internal heat. A heat-resistant layer 22 is fixed to the outside of the relay pipe 1. Heat dissipation fins 23 are fixed inside the internal heat insulation layer 21. The heat dissipation fins 23 are fixed inside the internal heat insulation layer 21 to increase the heat dissipation area and help dissipate the heat generated inside. Two bearings 24 are sleeved on the outside of the relay pipe 1. A heat dissipation sleeve 25 is fixed to the outside of the two bearings 24. The bearings 24 are installed on the outside of the relay pipe 1 to support the rotation of the relay pipe 1, ensuring that the relay pipe 1 can rotate freely without affecting the heat dissipation effect. An air inlet is opened on the left side of the heat dissipation sleeve 25, and an air inlet pipe 26 is fixed to the inner wall of the air inlet. A high-speed heat dissipation fan 27 is vertically fixed to the inner wall of the air inlet pipe 26. An air outlet 28 is opened on the right side of the heat dissipation sleeve 25. The heat dissipation sleeve 25 is fixed to the outside of the bearings 24, playing a role in protecting the bearings 24 and enhancing heat dissipation. The design of the heat dissipation sleeve 25 allows air to flow, helping with heat dissipation. The left side of the heat dissipation sleeve 25 is provided with an air inlet, and the right side is provided with an air outlet 28. By forcing air flow through the high-speed heat dissipation fan 27, the heat dissipation effect is enhanced. The high-speed heat dissipation fan 27 is installed in the air inlet pipe 26. By extracting air through the heat dissipation openings, the heat of the heat dissipation fins 23 is taken out, further reducing the temperature of the relay pipe 1.

[0026] In this embodiment, a plurality of heat dissipation openings are opened on one side of the relay pipe 1 and the internal heat insulation layer 21 located inside the heat dissipation sleeve 25. A dust-proof net 29 is fixed to the inner wall of the air inlet pipe 26 and on the left side of the high-speed heat dissipation fan 27. The dust-proof net 29 is fixed to the inner wall of the air inlet pipe 26 to prevent dust from entering the fan and the internal structure, keeping the heat dissipation system clean and efficient. The internal heat insulation layer 21 is a high-temperature resistant plastic layer, and the heat-resistant layer 22 is a ceramic layer. The heat-resistant layer 22 is made of ceramic material, providing additional heat insulation protection.

[0027] Please refer to Figures 4 to 5, for connection and installation with the switch, the connection mechanism 3 in this embodiment includes connection sleeves 31 fixed to the upper and lower ends of the relay pipe 1. The inner walls of both connection sleeves 31 are inserted with connection shafts 32. Adjustment grooves 33 are provided on the inner walls of the left and right sides of both connection sleeves 31. Insert the connection shaft 32 into the connection sleeve 31 to ensure that the connection shaft 32 is aligned with the relay pipe 1. Insert the clamping plate 34 into the adjustment groove 33 so that it contacts the connection shaft 32. Clamping plates 34 are slidably arranged on the inner walls of the adjustment grooves 33 on the left and right sides. Adjusting screws 35 are fixed to the opposite sides of the clamping plates 34 on the left and right sides. By rotating the adjusting screws 35, the length of the clamping plate 34 in the adjustment groove 33 is changed to adjust the position and angle of the blade 37 until the desired detection position is reached. The top end of the upper connection shaft 32 is fixed with a switch body 36, which is composed of a micro motor, a transmission shaft and a clutch. The bottom end of the lower connection shaft 32 is fixed with a blade 37.

[0028] In this embodiment, on the left and right sides of both connection shafts 32, clamping grooves 38 with the same size as the clamping plate 34 are provided. The shape of the clamping plate 34 is arc-shaped. Connection holes are provided on the left and right sides of the connection sleeve 31, and the adjusting screw 35 is slidably connected along the inner wall of the connection hole. Locking nuts 39 are threadedly connected to the outer sides of the four adjusting screws 35. Insert the clamping plate 34 into the clamping grooves 38 on both sides of the connection shaft 32 to ensure the stable connection between the clamping plate 34 and the connection shaft 32. Finally, tighten the locking nuts 39 to fix the position of the adjusting screw 35 to prevent loosening during operation.

[0029] The working principle of the above embodiment is as follows:

[0030] (1) The relay pipe 1 is a key component connecting the motor and the blade 37. An internal heat insulation mechanism 2 is provided inside to prevent high temperature from being transmitted to the external switch body 36. The internal heat insulation layer 21 is fixed to the inner wall of the relay pipe 1 and is made of high-temperature resistant plastic, which plays a role in isolating the internal heat. The heat-resistant layer 22 is made of ceramic material to provide additional heat insulation protection. The heat dissipation fins 23 are fixed inside the internal heat insulation layer 21 to increase the heat dissipation area and help dissipate the heat generated inside. The bearing 24 is installed on the outside of the relay pipe 1 to support the rotation of the relay pipe 1 and ensure that the relay pipe 1 can rotate freely without affecting the heat dissipation effect. The heat dissipation sleeve 25 is fixed to the outside of the bearing 24, which plays a role in protecting the bearing 24 and enhancing heat dissipation. The design of the heat dissipation sleeve 25 allows air to flow and helps with heat dissipation. An air inlet is provided on the left side of the heat dissipation sleeve 25, and an air outlet 28 is provided on the right side. The high-speed heat dissipation fan 27 is installed in the air inlet pipe 26 to force air flow through the heat dissipation port to take out the heat of the heat dissipation fins 23 and further reduce the temperature of the relay pipe 1. The dust-proof net 29 is fixed to the inner wall of the air inlet pipe 26 to prevent dust from entering the fan and the internal structure.

[0031] (2) Insert the connecting shaft 32 into the connecting sleeve 31, ensure that the connecting shaft 32 is aligned with the relay pipe 1, insert the clamping plate 34 into the adjustment groove 33 so that it contacts the connecting shaft 32, and by rotating the adjustment screw 35, change the length of the clamping plate 34 in the adjustment groove 33 to adjust the position and angle of the blade 37 until the required detection position is reached. Insert the clamping plate 34 into the clamping grooves 38 on both sides of the connecting shaft 32 to ensure the stable connection between the clamping plate 34 and the connecting shaft 32. Finally, tighten the locking nut 39 to fix the position of the adjustment screw 35 to prevent loosening during operation.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0033] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the description of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art. Therefore, the control method and circuit connection are not explained in detail in this application document.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A high temperature resistant rotary paddle type material level switch, comprising a relay tube (1), characterized in that: The inner wall of the relay pipe (1) is provided with a heat insulation mechanism (2) for improving the high temperature resistance effect, and the upper and lower ends of the relay pipe (1) are provided with connection mechanisms (3) for connecting and installing with the switch; The heat insulation mechanism (2) comprises an internal heat insulation layer (21) fixed to the inner wall of the relay tube (1); a heat-resistant layer (22) is fixed to the outer side of the relay tube (1); a heat dissipation fin (23) is fixed inside the internal heat insulation layer (21); two bearings (24) are sleeved on the outer side of the relay tube (1); a heat dissipation sleeve (25) is fixed to the outer side of the two bearings (24); an air inlet is opened on the left side of the heat dissipation sleeve (25); an air inlet pipe (26) is fixed to the inner wall of the air inlet; a high-speed heat dissipation fan (27) is vertically fixed to the inner wall of the air inlet pipe (26); and an air outlet (28) is opened on the right side of the heat dissipation sleeve (25).

2. The high temperature resistant rotary paddle type material level switch according to claim 1, characterized in that: The relay tube (1) and the internal heat insulation layer (21) are both provided with a plurality of heat dissipation openings on one side located inside the heat dissipation sleeve (25).

3. The high temperature resistant rotary paddle level switch according to claim 1, characterized in that: A dustproof net (29) is fixed on the inner wall of the air inlet pipe (26) and located on the left side of the high-speed cooling fan (27).

4. The high temperature resistant rotary paddle level switch according to claim 1, characterized in that: The internal heat insulation layer (21) is a high temperature resistant plastic layer, and the heat resistant layer (22) is a ceramic layer.

5. The high temperature resistant rotary paddle level switch according to claim 1, characterized in that: The connecting mechanism (3) comprises connecting sleeves (31) fixed at the upper and lower ends of the relay tube (1); the inner walls of the two connecting sleeves (31) are both plugged with connecting shafts (32); the inner walls of the left and right sides of the two connecting sleeves (31) are both provided with adjustment grooves (33); the inner walls of the left and right adjustment grooves (33) are both slidably provided with clamping plates (34); the opposite sides of the left and right clamping plates (34) are both fixed with adjustment screws (35); the top end of the upper connecting shaft (32) is fixed with a switch body (36); and the bottom end of the lower connecting shaft (32) is fixed with a blade (37).

6. The high temperature resistant rotary paddle type level switch according to claim 5, characterized in that: A clamping groove (38) having the same size as the clamping plate (34) is provided on the left and right sides of the two connecting shafts (32), and the clamping plate (34) is in an arc shape.

7. The high temperature resistant rotary paddle type material level switch according to claim 5, characterized in that: The connecting sleeve (31) is provided with connecting holes on both sides, and the adjusting screws (35) are slidably connected along the inner wall of the connecting holes. The outer sides of the four adjusting screws (35) are threadedly connected with locking nuts (39).

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