Resistance rotation type material level switch with external support

Abstract

The utility model relates to the technical field of damped rotation type material level switches, and discloses a damped rotation type material level switch with an external support, which comprises a support frame, rack plates fixedly connected to the front and back of the inner wall of the support frame, a mounting assembly mounted in the middle of the inner side of the support frame, and a material level switch assembly mounted at the bottom of the mounting assembly. Fixing blocks are fixedly connected to the front face and the back face of the fixing frame, rotating rods are movably connected to the inner sides of the fixing blocks in a sleeving mode, cylindrical gears are fixedly connected to the middles of the outer sides of the rotating rods in a sleeving mode, the rack plate and the mounting assembly are arranged, the mounting assembly is moved in the vertical direction, and due to the meshing effect of the rack plate and the cylindrical gears, the cylindrical gears rotate; when the installation assembly drives the material level switch assembly to be adjusted to the needed position, under the elastic force effect of the first spring, the triangular block is inserted into the outer side of the cylindrical gear to fix the cylindrical gear, then the installation assembly is fixed, and adjustment of the detection depth of the material level switch assembly is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary paddle type material level switches, and more specifically to a rotary paddle type material level switch with an external bracket. Background Art

[0002] Rotary paddle level switch is widely used for level detection and control of various materials. The known rotary paddle level switch contains a transmission shaft, bearings, bearing seals, blades, flanges, and a motor, clutch, and detection device installed in the housing. The transmission shaft is connected to the clutch and blades through the support of the bearings and drives the blades to rotate. The flange is used for fixed installation of the rotary paddle level switch, and the bearing seals can prevent debris from entering the bearings. Its working principle is: when the blades do not contact the material, the motor runs normally and the blades rotate normally; when the blades contact the material, the resistance stops the blades from rotating, the motor stops rotating, and the detection device outputs a contact signal to cut off the power supply of the motor to protect the motor.

[0003] During the use of the rotary paddle level switch, it is necessary to adjust it according to the actual use situation. The length of the transmission shaft of the existing rotary paddle level switch is fixed and cannot be adjusted in real time during use, so it is difficult to adjust it according to actual needs during use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rotary paddle level switch with an external bracket to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a rotary paddle level switch with an external bracket, comprising a bracket frame, a mounting plate fixedly connected to the bottom of the bracket frame, rack plates fixedly connected to the front and back sides of the inner wall of the bracket frame, a mounting assembly installed in the middle of the inner side of the bracket frame, a level switch assembly installed at the bottom of the mounting assembly, a fixing assembly installed on the outer side of the level switch assembly, the mounting assembly comprising a fixing frame, a fixing block fixedly connected to the front and back sides of the fixing frame, a rotating rod movably sleeved on the inner side of the fixing block, a cylindrical gear fixedly sleeved on the middle side of the outer side of the rotating rod, and the cylindrical gear and the rack plate mesh with each other.

[0006] Furthermore, both sides of the bottom of the fixing frame are fixedly connected with positioning tubes, the bottom of the positioning tubes is movably sleeved with positioning rods, and the bottom of the positioning rods is fixedly connected to the top of the mounting plate.

[0007] Furthermore, a first spring is provided on the inner side of the fixed frame, and a moving block is fixedly connected to the front and back sides of the first spring, and a triangular block is fixedly connected to the surface of the moving block away from the first spring. A connecting groove is provided on the top of the fixed frame, and a handle block is fixedly connected to the top of the moving block.

[0008] Furthermore, the material level switch assembly includes a motor fixedly connected to the bottom of the fixed frame, the output shaft of the motor is fixedly connected to a fixed tube, the bottom inner side of the fixed tube is movably sleeved with an adjustable shaft, and the bottom of the adjustable shaft is fixedly connected to a rotation-blocking blade.

[0009] Furthermore, the front and back sides of the inner wall of the fixed tube are provided with limiting grooves, the front and back sides of the adjustable shaft are fixedly connected to limiting strips, and the right side of the adjustable shaft is provided with a fixing groove.

[0010] Furthermore, the fixing assembly includes a fixing frame fixedly connected to the right side of the fixing tube, a cylindrical rod is movably sleeved on the side of the fixing frame, a fixing ring is fixedly connected to the right side of the cylindrical rod, a stopper is fixedly connected to the left side of the outer side of the cylindrical rod, a second spring is arranged on the outer side of the cylindrical rod, and the second spring is located between the stopper and the inner wall of the fixing frame.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model is provided with a rack plate and a mounting assembly, and the handle block is pressed in the direction of approaching each other, so that the two moving blocks are moved closer to each other, and the first spring is compressed, so that the triangular block is separated from the outer side of the cylindrical gear, and then the mounting assembly is moved in the vertical direction as needed. During the movement, due to the meshing action of the rack plate and the cylindrical gear, the cylindrical gear rotates. When the mounting assembly drives the material level switch assembly to adjust to the required position, the handle block is no longer pressed. Under the elastic force of the first spring, the moving block pushes the triangular blocks away from each other, so that the triangular block is inserted into the outer side of the cylindrical gear, the cylindrical gear is fixed, and then the mounting assembly is fixed, and the adjustment of the detection depth of the material level switch assembly is completed.

[0013] 2. The utility model is provided with an adjustable shaft and a fixing assembly. Before installing the material level switch, the fixing ring is pulled to the right so that the cylindrical rod is separated from the inner side of the fixing groove, and the length of the adjustable shaft extending from the inner side of the fixing tube can be adjusted. After moving to the required length, the fixing ring is released, and the second spring pushes the cylindrical rod to move toward the inner side of the fixing tube, so that the cylindrical rod is inserted into the corresponding fixing groove to fix the adjustable shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the installation component structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing frame of the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the material level switch component of the utility model.

[0018] Figure 5 This is a schematic diagram of the adjustable shaft structure of the utility model.

[0019] Figure 6 It is a schematic diagram of the structure of the fixing component of the utility model.

[0020] The accompanying drawings are marked as follows: 1. bracket frame; 101. mounting plate; 102. rack plate; 2. mounting assembly; 201. fixed frame; 211. first spring; 212. moving block; 213. triangular block; 214. connecting groove; 215. handle block; 202. fixed block; 203. rotating rod; 204. cylindrical gear; 205. positioning tube; 206. positioning rod; 3. material level switch assembly; 301. motor; 302. fixed tube; 321. limiting groove; 303. adjustable shaft; 331. fixed groove; 332. limiting strip; 304. anti-rotation blade; 4. fixing assembly; 401. fixing frame; 402. cylindrical rod; 403. fixing ring; 404. stop block; 405. second spring. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The present invention involves a rotary paddle level switch with an external bracket and is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 6The utility model provides a rotary paddle level switch with an external bracket, comprising a bracket frame 1, a mounting plate 101 is fixedly connected to the bottom of the bracket frame 1, a rack plate 102 is fixedly connected to the front and back of the inner wall of the bracket frame 1, a mounting assembly 2 is installed in the middle of the inner side of the bracket frame 1, a level switch assembly 3 is installed at the bottom of the mounting assembly 2, a fixing assembly 4 is installed on the outer side of the level switch assembly 3, the mounting assembly 2 comprises a fixing frame 201, a fixing block 202 is fixedly connected to the front and back of the fixing frame 201, a rotating rod 203 is movably sleeved on the inner side of the fixing block 202, a cylindrical gear 204 is fixedly sleeved on the middle of the outer side of the rotating rod 203, and the cylindrical gear 204 is meshed with the rack plate 102.

[0023] In the embodiment of the present application, before installing the material level switch, the fixing ring 403 is pulled to the right, so that the cylindrical rod 402 is separated from the inner side of the fixing groove 331, and the length of the adjustable shaft 303 extending from the inner side of the fixing tube 302 can be adjusted. After moving to the required length, the fixing ring 403 is released, and the second spring 405 pushes the cylindrical rod 402 to move to the inner side of the fixing tube 302, so that the cylindrical rod 402 is inserted into the corresponding fixing groove 331 to fix the adjustable shaft 303;

[0024] Then, the mounting plate 101 is fixed to the surface of the required device by bolts to fix the material level switch assembly 3. When the detection depth of the material level switch assembly 3 needs to be adjusted, the handle block 215 is pressed in the direction of approaching each other, driving the two moving blocks 212 to approach each other, and the first spring 211 is compressed, so that the triangular block 213 is separated from the outer side of the cylindrical gear 204. Then, as needed, the mounting assembly 2 is moved in the vertical direction. During the movement, due to the meshing action of the rack plate 102 and the cylindrical gear 204, the cylindrical gear 204 rotates. When the mounting assembly 2 drives the material level switch assembly 3 to adjust to the required position, the handle block 215 is no longer pressed. Under the elastic force of the first spring 211, the moving block 212 pushes the triangular blocks 213 away from each other, so that the triangular blocks 213 are inserted into the outer side of the cylindrical gear 204, and the cylindrical gear 204 is fixed, and then the mounting assembly 2 is fixed to complete the adjustment of the detection depth of the material level switch assembly 3.

[0025] In a preferred embodiment, positioning tubes 205 are fixedly connected to both sides of the bottom of the fixed frame 201, and a positioning rod 206 is movably sleeved on the bottom of the positioning tube 205. The bottom of the positioning rod 206 is fixedly connected to the top of the mounting plate 101. The positioning tube 205 and the positioning rod 206 cooperate to position the fixed frame 201, so that the cylindrical gear 204 and the rack plate 102 are stably engaged.

[0026] In a preferred embodiment, a first spring 211 is provided on the inner side of the fixed frame 201, and a moving block 212 is fixedly connected to the front and back sides of the first spring 211, and a triangular block 213 is fixedly connected to the surface of the moving block 212 away from the first spring 211, and a connecting groove 214 is opened on the top of the fixed frame 201, and a handle block 215 is fixedly connected to the top of the moving block 212, and the handle block 215 and the connecting groove 214 are adapted to each other.

[0027] In a preferred embodiment, the material level switch assembly 3 includes a motor 301 fixedly connected to the bottom of the fixed frame 201, the output shaft of the motor 301 is fixedly connected to the fixed tube 302, the bottom movably sleeved inside the fixed tube 302 is equipped with an adjustable shaft 303, the bottom of the adjustable shaft 303 is fixedly connected to a rotation-blocking blade 304, and the working principle of the motor 301 is common in the prior art and will not be repeated in this application.

[0028] In a preferred embodiment, limiting grooves 321 are provided on the front and back sides of the inner wall of the fixed tube 302, and the front and back sides of the adjustable shaft 303 are fixedly connected to limiting strips 332. A fixing groove 331 is provided on the right side of the adjustable shaft 303. The limiting groove 321 and the limiting strip 332 are adapted to each other, and can limit the adjustable shaft 303 to prevent the adjustable shaft 303 from rotating on the inner side of the fixed tube 302.

[0029] In a preferred embodiment, the fixing assembly 4 includes a fixing frame 401 fixedly connected to the right side of the fixing tube 302, a cylindrical rod 402 is movably sleeved on the side of the fixing frame 401, a fixing ring 403 is fixedly connected to the right side of the cylindrical rod 402, a stopper 404 is fixedly connected to the left side of the outer side of the cylindrical rod 402, a second spring 405 is arranged on the outer side of the cylindrical rod 402, the second spring 405 is located between the stopper 404 and the inner wall of the fixing frame 401, the cylindrical rod 402 is adapted to each other with the fixing groove 331, and the edge of the left side of the cylindrical rod 402 is arranged with an inclined chamfer.

[0030] Working principle of the utility model: before installing the material level switch, pull the fixing ring 403 to the right, so that the cylindrical rod 402 is separated from the inner side of the fixing groove 331, and the length of the adjustable shaft 303 extending from the inner side of the fixing tube 302 can be adjusted. After moving to the required length, release the fixing ring 403, and the second spring 405 pushes the cylindrical rod 402 to move to the inner side of the fixing tube 302, so that the cylindrical rod 402 is inserted into the corresponding fixing groove 331, and the adjustable shaft 303 is fixed;

[0031] Then, the mounting plate 101 is fixed to the surface of the required device by bolts to fix the material level switch assembly 3. When the detection depth of the material level switch assembly 3 needs to be adjusted, the handle block 215 is pressed in the direction of approaching each other, driving the two moving blocks 212 to approach each other, and the first spring 211 is compressed, so that the triangular block 213 is separated from the outer side of the cylindrical gear 204. Then, as needed, the mounting assembly 2 is moved in the vertical direction. During the movement, due to the meshing action of the rack plate 102 and the cylindrical gear 204, the cylindrical gear 204 rotates. When the mounting assembly 2 drives the material level switch assembly 3 to adjust to the required position, the handle block 215 is no longer pressed. Under the elastic force of the first spring 211, the moving block 212 pushes the triangular blocks 213 away from each other, so that the triangular blocks 213 are inserted into the outer side of the cylindrical gear 204, and the cylindrical gear 204 is fixed, and then the mounting assembly 2 is fixed to complete the adjustment of the detection depth of the material level switch assembly 3.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A paddle-type level switch with an external bracket, comprising a bracket frame (1), characterized in that: The bottom of the support frame (1) is fixedly connected to a mounting plate (101); the front and back sides of the inner wall of the support frame (1) are fixedly connected to a rack plate (102); a mounting assembly (2) is installed in the middle of the inner side of the support frame (1); a material level switch assembly (3) is installed at the bottom of the mounting assembly (2); a fixing assembly (4) is installed on the outer side of the material level switch assembly (3); the mounting assembly (2) comprises a fixing frame (201); the front and back sides of the fixing frame (201) are fixedly connected to a fixing block (202); a rotating rod (203) is movably sleeved on the inner side of the fixing block (202); a cylindrical gear (204) is fixedly sleeved on the middle side of the outer side of the rotating rod (203); the cylindrical gear (204) and the rack plate (102) are meshed with each other.

2. The rotary paddle level switch with an external bracket according to claim 1, characterized in that: Both sides of the bottom of the fixed frame (201) are fixedly connected with positioning tubes (205), the bottom of the positioning tube (205) is movably sleeved with a positioning rod (206), and the bottom of the positioning rod (206) is fixedly connected to the top of the mounting plate (101).

3. The rotary paddle level switch with an external bracket according to claim 1, characterized in that: A first spring (211) is arranged on the inner side of the fixed frame (201); a moving block (212) is fixedly connected to the front and back sides of the first spring (211); a triangular block (213) is fixedly connected to the surface of the moving block (212) away from the first spring (211); a connecting groove (214) is provided on the top of the fixed frame (201); and a handle block (215) is fixedly connected to the top of the moving block (212).

4. The rotary paddle type material level switch with an external bracket according to claim 1, characterized in that: The material level switch assembly (3) comprises a motor (301) fixedly connected to the bottom of a fixed frame (201); the output shaft of the motor (301) is fixedly connected to a fixed tube (302); an adjustable shaft (303) is movably sleeved at the bottom inside the fixed tube (302); and a rotation-blocking blade (304) is fixedly connected to the bottom of the adjustable shaft (303).

5. The rotary paddle level switch with an external bracket according to claim 4, characterized in that: The front and back sides of the inner wall of the fixed tube (302) are both provided with limiting grooves (321), the front and back sides of the adjustable shaft (303) are both fixedly connected to limiting strips (332), and the right side of the adjustable shaft (303) is provided with a fixing groove (331).

6. The rotary paddle level switch with an external bracket according to claim 1, characterized in that: The fixing assembly (4) comprises a fixing frame (401) fixedly connected to the right side of the fixing tube (302); a cylindrical rod (402) is movably sleeved on the side of the fixing frame (401); a fixing ring (403) is fixedly connected to the right side of the cylindrical rod (402); a stopper (404) is fixedly connected to the left side of the outer side of the cylindrical rod (402); a second spring (405) is arranged on the outer side of the cylindrical rod (402); and the second spring (405) is located between the stopper (404) and the inner wall of the fixing frame (401).

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