Safety protection device of stirring motor

Abstract

The utility model belongs to the technical field of stirring motors, and particularly relates to a safety protection device of a stirring motor, which comprises a motor shell, a rotor shaft is rotatably connected to the axis of the motor shell, one end of the rotor shaft extends out of the motor shell, a protection sleeve is arranged on the outer wall of the motor shell, and the inner diameter of the protection sleeve is larger than the diameter of the rotor shaft. The rotor shaft is sleeved with the protective sleeve, and a plurality of supporting rods are arranged between the protective sleeve and the outer wall of the motor shell. According to the utility model, the protective sleeve is additionally arranged on the motor shell, and the protective sleeve is sleeved on the rotor shaft, so that a worker does not contact with the rotor shaft when cleaning the fan filter screen on the motor shell, and potential safety hazards are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of stirring motor technology, specifically a safety protection device for stirring motors. Background Technology

[0002] Mixing motors are common electric drive sources. A fan filter is usually installed at the air inlet of the motor housing to filter impurities in the air while ensuring air intake. A rotor shaft is rotatably connected at the central axis of the motor housing. Due to different application scenarios, some rotor shafts may extend outside the motor housing.

[0003] In summer, there is a lot of willow catkins, which can easily clog the fan filter, resulting in poor air intake at the motor housing and poor heat dissipation of the motor. Therefore, it is necessary to clean the willow catkins in time. During the operation of the mixing motor, when the staff cleans the fan filter, they may touch the high-speed rotating rotor shaft, which poses a safety hazard. Utility Model Content

[0004] To address the problems mentioned above, this utility model provides a safety protection device for a stirring motor. A protective sleeve is installed on the motor housing and is fitted onto the rotor shaft. This prevents workers from coming into contact with the rotor shaft when cleaning the fan filter on the motor housing, thus reducing safety hazards.

[0005] This utility model provides a safety protection device for a stirring motor, including a motor housing, a rotor shaft rotatably connected to the center of the motor housing, one end of the rotor shaft extending outside the motor housing, a protective sleeve provided on the outer wall of the motor housing, the inner diameter of the protective sleeve being larger than the diameter of the rotor shaft, the protective sleeve being fitted onto the rotor shaft, and multiple support rods being provided between the protective sleeve and the outer wall of the motor housing.

[0006] Furthermore, multiple fixing blocks are fixed on the outer wall of the motor housing. The top of the fixing blocks has a slot. The end of the support rod away from the protective sleeve is fixed with an insert block. The insert block is inserted into the slot. The fixing blocks are equipped with locking components for fixing the insert block.

[0007] Furthermore, the locking assembly includes a support frame fixed to the side wall of the fixed block, a locking rod slidably passing through the support frame and the fixed block, a locking hole being opened in the insert block, one end of the locking rod being inserted into the locking hole, a pull ring being fixed to the end of the locking rod away from the locking hole, a support plate being fixed on the locking rod, the support plate being located between the support frame and the fixed block, a spring being provided between the support frame and the support plate, and the support plate abutting against the side wall of the fixed block under the elastic action of the spring.

[0008] Furthermore, the locking rod has an inclined guide surface at one end near the locking hole. When the insert block is inserted downward into the slot, it will push the locking rod outward when it contacts the guide surface.

[0009] Furthermore, a magnetic ring is provided at the bottom of the protective sleeve, which is attached to the motor housing.

[0010] Furthermore, the protective sleeve includes a fixed sleeve and a sliding sleeve. The sliding sleeve is vertically slidably connected inside the fixed sleeve. A slider is fixed on the outer wall of the sliding sleeve. A groove is vertically opened on the inner wall of the fixed sleeve. The slider is movably disposed in the groove. A fixing element for fixing the sliding sleeve is provided on the fixed sleeve.

[0011] Furthermore, the fastener is a tightening bolt, which is threaded onto the fixed sleeve and passes horizontally through the fixed sleeve. One end of the tightening bolt abuts against the outer wall of the sliding sleeve.

[0012] Furthermore, the top of the sliding sleeve is provided with a sealing cap, which has multiple buckles, and the inner wall of the sliding sleeve has multiple slots, in which the buckles are engaged.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] (1) A protective sleeve was installed on the motor housing. The protective sleeve was placed on the rotor shaft, so that the staff would not come into contact with the rotor shaft when cleaning the fan filter on the motor housing, thus reducing safety hazards.

[0015] (2) When installing the protective sleeve, simply insert multiple inserts into the corresponding slots. Insert the inserts downwards into the slots. When the inserts contact the guide surface of the locking rod, the inserts push the locking rod to move outwards from the fixed block. When the inserts move to the bottom of the slot, the locking rod is directly opposite the locking hole. Under the elastic action of the spring, the spring pushes the locking rod into the locking hole, thereby fixing the inserts and preventing them from coming out of the slot. When it is necessary to remove the protective sleeve, pull the pull ring. The pull ring moves the locking rod outwards. When the locking rod comes out of the locking hole, pull the support rod upwards. The support rod moves the inserts out of the slot. This facilitates the installation and removal of the protective sleeve and makes it easier to maintain later.

[0016] (3) Different models of stirring motors have different lengths of rotor shaft extending out of the motor housing. Therefore, the protective sleeve is designed with an adjustable length structure so that the length of the protective sleeve can be adjusted according to the length of the rotor shaft so that the protective sleeve can completely cover the rotor shaft. When adjusting, first loosen the tightening bolt so that the tightening bolt moves away from the sliding sleeve, and then pull the sliding sleeve upward. After the protective sleeve completely covers the rotor shaft, tighten the tightening bolt so that the tightening bolt presses against the sliding sleeve. Use the friction between the tightening bolt and the sliding sleeve to restrict the movement of the sliding sleeve. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a safety protection device for a stirring motor;

[0019] Figure 2 This is a cross-sectional view of the locking component;

[0020] Figure 3 This is a cross-sectional view of the protective sleeve;

[0021] Explanation of reference numerals in the attached drawings: 1. Motor housing; 2. Rotor shaft; 3. Protective sleeve; 30. Fixed sleeve; 31. Sliding sleeve; 32. Slider; 33. Slide groove; 34. Fixing component; 340. Tightening bolt; 35. Magnet ring; 36. Sealing cover; 37. Buckle; 38. Slot; 4. Support rod; 5. Fixing block; 50. Slot; 6. Insert block; 7. Locking assembly; 70. Support frame; 71. Locking rod; 72. Locking hole; 73. Pull ring; 74. Support plate; 75. Spring. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 The present invention will be described in detail with specific embodiments.

[0024] Reference Figure 1-3This utility model provides a safety protection device for a stirring motor, including a motor housing 1. A rotor shaft 2 is rotatably connected to the central axis of the motor housing 1, with one end of the rotor shaft 2 extending outside the motor housing 1. A protective sleeve 3 is installed on the top outer wall of the motor housing 1, with the inner diameter of the protective sleeve 3 being larger than the diameter of the rotor shaft 2. The protective sleeve 3 is fitted onto the rotor shaft 2. Multiple support rods 4 are fixedly connected to the outer wall of the protective sleeve 3, with the end of the support rod 4 away from the protective sleeve 3 located on the outer wall of the motor housing 1. The support rods 4 not only support and fix the protective sleeve 3 but also position the protective sleeve 3 to prevent contact between the protective sleeve 3 and the rotor shaft 2. By installing the protective sleeve 3 on the motor housing 1 and fitting it onto the rotor shaft 2, workers will not come into contact with the rotor shaft 2 when cleaning the fan filter on the motor housing 1, thus reducing safety hazards.

[0025] Multiple fixing blocks 5 are fixed on the outer circumferential wall of the motor housing 1. The top of the fixing block 5 is provided with a slot 50. The end of the support rod 4 away from the protective sleeve 3 is fixed with an insert 6. The insert 6 is inserted into the slot 50. The fixing block 5 is provided with a locking component 7 for fixing the insert 6.

[0026] The locking assembly 7 includes a support frame 70 fixed to the side wall of the fixing block 5. A locking rod 71 is slidably inserted between the support frame 70 and the fixing block 5. A locking hole 72 is opened in the insert block 6. One end of the locking rod 71 is inserted into the locking hole 72. A pull ring 73 is fixed to the end of the locking rod 71 away from the locking hole 72. A support plate 74 is fixed on the locking rod 71. The support plate 74 is located between the support frame 70 and the fixing block 5. A spring 75 is provided between the support frame 70 and the support plate 74. The support plate 74 abuts against the side wall of the fixing block 5 under the elastic action of the spring 75. An inclined guide surface is provided at the end of the locking rod 71 near the locking hole 72. When the insert block 6 is inserted downward into the slot 50, the insert block 6 will push the locking rod 71 to move outward when it contacts the guide surface.

[0027] When installing the protective sleeve 3, simply insert multiple inserts 6 into the corresponding slots 50. Insert the inserts 6 downwards into the slots 50. When the inserts 6 contact the guide surface of the locking rod 71, they push the locking rod 71 to move outwards from the fixing block 5. When the inserts 6 move to the bottom of the slot 50, the locking rod 71 is aligned with the locking hole 72. Under the elastic action of the spring 75, the spring 75 pushes the locking rod 71 into the locking hole 72, thereby fixing the inserts 6 and preventing them from detaching from the slot 50. When it is necessary to remove the protective sleeve 3, pull the pull ring 73. The pull ring 73 moves the locking rod 71 outwards. When the locking rod 71 disengages from the locking hole 72, pull the support rod 4 upwards. The support rod 4 then moves the inserts 6 out of the slot 50. This facilitates the installation and removal of the protective sleeve 3 and makes future maintenance easier.

[0028] A magnetic ring 35 is fixed at the bottom of the protective sleeve 3, and the magnetic ring 35 is attracted to the motor housing 1. During the installation of the protective sleeve 3, when the insert block 6 is inserted into the bottom of the slot 50 and locked, the magnetic ring 35 at the bottom of the protective sleeve 3 is attracted to the motor housing 1. The magnetic ring 35 enables the protective sleeve 3 to be stably installed on the motor housing 1, thereby improving the stability of the protective sleeve 3.

[0029] The protective sleeve 3 includes a fixed sleeve 30 and a sliding sleeve 31. The sliding sleeve 31 is vertically slidably connected to the fixed sleeve 30. The magnetic ring 35 is fixed to the bottom of the fixed sleeve 30. A slider 32 is fixed on the outer wall of the sliding sleeve 31. A groove 33 is vertically opened on the inner wall of the fixed sleeve 30. The slider 32 is movably disposed in the groove 33. A fixing member 34 for fixing the sliding sleeve 31 is provided on the fixed sleeve 30. The fixing member 34 is a tightening bolt 340. The tightening bolt 340 is threadedly connected to the fixed sleeve 30 and horizontally penetrates the fixed sleeve 30. One end of the tightening bolt 340 abuts against the outer wall of the sliding sleeve 31.

[0030] Different models of mixing motors have different lengths of rotor shaft 2 extending out of motor housing 1. Therefore, the protective sleeve 3 is designed with an adjustable length structure, which can be adjusted according to the length of rotor shaft 2 so that the protective sleeve 3 can completely cover rotor shaft 2. When adjusting, first loosen the tightening bolt 340 so that the tightening bolt 340 moves away from the sliding sleeve 31, and then pull the sliding sleeve 31 upward. After the protective sleeve 3 completely covers rotor shaft 2, tighten the tightening bolt 340 so that the tightening bolt 340 presses against the sliding sleeve 31. The friction between the tightening bolt 340 and the sliding sleeve 31 is used to restrict the movement of the sliding sleeve 31.

[0031] A sealing cover 36 is provided at the top of the sliding sleeve 31. Multiple clips 37 are fixed to the sealing cover 36, and multiple slots 38 are formed on the inner wall of the sliding sleeve 31, with the clips 37 engaging within these slots. The sealing cover 36 completely encloses the rotor shaft 2, preventing workers' hair or clothing from getting caught in the gap between the sliding sleeve 31 and the rotor shaft 2, further reducing safety hazards.

[0032] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A safety protection device for a stirring motor, characterized in that, The device includes a motor housing, a rotor shaft rotatably connected to the center of the motor housing, one end of the rotor shaft extending outside the motor housing, a protective sleeve provided on the outer wall of the motor housing, the inner diameter of the protective sleeve being larger than the diameter of the rotor shaft, the protective sleeve being fitted onto the rotor shaft, and multiple support rods being provided between the protective sleeve and the outer wall of the motor housing.

2. The safety protection device for the stirring motor according to claim 1, characterized in that, Multiple fixing blocks are fixed on the outer wall of the motor housing. The top of each fixing block has a slot. A plug is fixed at the end of the support rod away from the protective sleeve. The plug is inserted into the slot. A locking component for fixing the plug is provided on the fixing block.

3. The safety protection device for the stirring motor according to claim 2, characterized in that, The locking assembly includes a support frame fixed to the side wall of the fixed block, a locking rod slidably passing through the support frame and the fixed block, a locking hole being formed in the insert block, one end of the locking rod being inserted into the locking hole, a pull ring being fixed to the end of the locking rod away from the locking hole, a support plate being fixed to the locking rod, the support plate being located between the support frame and the fixed block, a spring being provided between the support frame and the support plate, and the support plate abutting against the side wall of the fixed block under the elastic action of the spring.

4. The safety protection device for the stirring motor according to claim 3, characterized in that, The locking rod has an inclined guide surface at one end near the locking hole. When the insert block is inserted downward into the slot, the insert block will push the locking rod to move outward when it contacts the guide surface.

5. The safety protection device for the stirring motor according to claim 1, characterized in that, A magnetic ring is provided at the bottom of the protective sleeve, and the magnetic ring is attached to the motor housing.

6. The safety protection device for the stirring motor according to claim 1, characterized in that, The protective sleeve includes a fixed sleeve and a sliding sleeve. The sliding sleeve is vertically slidably connected inside the fixed sleeve. A slider is fixed on the outer wall of the sliding sleeve. A groove is vertically opened on the inner wall of the fixed sleeve. The slider is movably disposed in the groove. A fixing member for fixing the sliding sleeve is provided on the fixed sleeve.

7. The safety protection device for the stirring motor according to claim 6, characterized in that, The fixing component is a tightening bolt, which is threaded onto the fixing sleeve and horizontally penetrates the fixing sleeve. One end of the tightening bolt abuts against the outer wall of the sliding sleeve.

8. The safety protection device for the stirring motor according to claim 6, characterized in that, The top of the sliding sleeve is provided with a sealing cover, and the sealing cover is provided with multiple buckles. The inner wall of the sliding sleeve is provided with multiple slots, and the buckles are engaged in the slots.

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